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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / wireless / ipw2x00 / ipw2200.c
blobcb3ba134865e81c493f4c2d9d6861bcac7486b30
1 /******************************************************************************
2
3 Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved.
4
5 802.11 status code portion of this file from ethereal-0.10.6:
6 Copyright 2000, Axis Communications AB
7 Ethereal - Network traffic analyzer
8 By Gerald Combs <gerald@ethereal.com>
9 Copyright 1998 Gerald Combs
10
11 This program is free software; you can redistribute it and/or modify it
12 under the terms of version 2 of the GNU General Public License as
13 published by the Free Software Foundation.
14
15 This program is distributed in the hope that it will be useful, but WITHOUT
16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
18 more details.
19
20 You should have received a copy of the GNU General Public License along with
21 this program; if not, write to the Free Software Foundation, Inc., 59
22 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23
24 The full GNU General Public License is included in this distribution in the
25 file called LICENSE.
26
27 Contact Information:
28 Intel Linux Wireless <ilw@linux.intel.com>
29 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30
31 ******************************************************************************/
32
33 #include <linux/sched.h>
34 #include "ipw2200.h"
35
36
37 #ifndef KBUILD_EXTMOD
38 #define VK "k"
39 #else
40 #define VK
41 #endif
42
43 #ifdef CONFIG_IPW2200_DEBUG
44 #define VD "d"
45 #else
46 #define VD
47 #endif
48
49 #ifdef CONFIG_IPW2200_MONITOR
50 #define VM "m"
51 #else
52 #define VM
53 #endif
54
55 #ifdef CONFIG_IPW2200_PROMISCUOUS
56 #define VP "p"
57 #else
58 #define VP
59 #endif
60
61 #ifdef CONFIG_IPW2200_RADIOTAP
62 #define VR "r"
63 #else
64 #define VR
65 #endif
66
67 #ifdef CONFIG_IPW2200_QOS
68 #define VQ "q"
69 #else
70 #define VQ
71 #endif
72
73 #define IPW2200_VERSION "1.2.2" VK VD VM VP VR VQ
74 #define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2200/2915 Network Driver"
75 #define DRV_COPYRIGHT "Copyright(c) 2003-2006 Intel Corporation"
76 #define DRV_VERSION IPW2200_VERSION
77
78 #define ETH_P_80211_STATS (ETH_P_80211_RAW + 1)
79
80 MODULE_DESCRIPTION(DRV_DESCRIPTION);
81 MODULE_VERSION(DRV_VERSION);
82 MODULE_AUTHOR(DRV_COPYRIGHT);
83 MODULE_LICENSE("GPL");
84 MODULE_FIRMWARE("ipw2200-ibss.fw");
85 #ifdef CONFIG_IPW2200_MONITOR
86 MODULE_FIRMWARE("ipw2200-sniffer.fw");
87 #endif
88 MODULE_FIRMWARE("ipw2200-bss.fw");
89
90 static int cmdlog = 0;
91 static int debug = 0;
92 static int default_channel = 0;
93 static int network_mode = 0;
94
95 static u32 ipw_debug_level;
96 static int associate;
97 static int auto_create = 1;
98 static int led_support = 0;
99 static int disable = 0;
100 static int bt_coexist = 0;
101 static int hwcrypto = 0;
102 static int roaming = 1;
103 static const char ipw_modes[] = {
104 'a', 'b', 'g', '?'
105 };
106 static int antenna = CFG_SYS_ANTENNA_BOTH;
107
108 #ifdef CONFIG_IPW2200_PROMISCUOUS
109 static int rtap_iface = 0; /* def: 0 -- do not create rtap interface */
110 #endif
111
112 static struct ieee80211_rate ipw2200_rates[] = {
113 { .bitrate = 10 },
114 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
115 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
116 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
117 { .bitrate = 60 },
118 { .bitrate = 90 },
119 { .bitrate = 120 },
120 { .bitrate = 180 },
121 { .bitrate = 240 },
122 { .bitrate = 360 },
123 { .bitrate = 480 },
124 { .bitrate = 540 }
125 };
126
127 #define ipw2200_a_rates (ipw2200_rates + 4)
128 #define ipw2200_num_a_rates 8
129 #define ipw2200_bg_rates (ipw2200_rates + 0)
130 #define ipw2200_num_bg_rates 12
131
132 #ifdef CONFIG_IPW2200_QOS
133 static int qos_enable = 0;
134 static int qos_burst_enable = 0;
135 static int qos_no_ack_mask = 0;
136 static int burst_duration_CCK = 0;
137 static int burst_duration_OFDM = 0;
138
139 static struct libipw_qos_parameters def_qos_parameters_OFDM = {
140 {QOS_TX0_CW_MIN_OFDM, QOS_TX1_CW_MIN_OFDM, QOS_TX2_CW_MIN_OFDM,
141 QOS_TX3_CW_MIN_OFDM},
142 {QOS_TX0_CW_MAX_OFDM, QOS_TX1_CW_MAX_OFDM, QOS_TX2_CW_MAX_OFDM,
143 QOS_TX3_CW_MAX_OFDM},
144 {QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS},
145 {QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM},
146 {QOS_TX0_TXOP_LIMIT_OFDM, QOS_TX1_TXOP_LIMIT_OFDM,
147 QOS_TX2_TXOP_LIMIT_OFDM, QOS_TX3_TXOP_LIMIT_OFDM}
148 };
149
150 static struct libipw_qos_parameters def_qos_parameters_CCK = {
151 {QOS_TX0_CW_MIN_CCK, QOS_TX1_CW_MIN_CCK, QOS_TX2_CW_MIN_CCK,
152 QOS_TX3_CW_MIN_CCK},
153 {QOS_TX0_CW_MAX_CCK, QOS_TX1_CW_MAX_CCK, QOS_TX2_CW_MAX_CCK,
154 QOS_TX3_CW_MAX_CCK},
155 {QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS},
156 {QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM},
157 {QOS_TX0_TXOP_LIMIT_CCK, QOS_TX1_TXOP_LIMIT_CCK, QOS_TX2_TXOP_LIMIT_CCK,
158 QOS_TX3_TXOP_LIMIT_CCK}
159 };
160
161 static struct libipw_qos_parameters def_parameters_OFDM = {
162 {DEF_TX0_CW_MIN_OFDM, DEF_TX1_CW_MIN_OFDM, DEF_TX2_CW_MIN_OFDM,
163 DEF_TX3_CW_MIN_OFDM},
164 {DEF_TX0_CW_MAX_OFDM, DEF_TX1_CW_MAX_OFDM, DEF_TX2_CW_MAX_OFDM,
165 DEF_TX3_CW_MAX_OFDM},
166 {DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS},
167 {DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM},
168 {DEF_TX0_TXOP_LIMIT_OFDM, DEF_TX1_TXOP_LIMIT_OFDM,
169 DEF_TX2_TXOP_LIMIT_OFDM, DEF_TX3_TXOP_LIMIT_OFDM}
170 };
171
172 static struct libipw_qos_parameters def_parameters_CCK = {
173 {DEF_TX0_CW_MIN_CCK, DEF_TX1_CW_MIN_CCK, DEF_TX2_CW_MIN_CCK,
174 DEF_TX3_CW_MIN_CCK},
175 {DEF_TX0_CW_MAX_CCK, DEF_TX1_CW_MAX_CCK, DEF_TX2_CW_MAX_CCK,
176 DEF_TX3_CW_MAX_CCK},
177 {DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS},
178 {DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM},
179 {DEF_TX0_TXOP_LIMIT_CCK, DEF_TX1_TXOP_LIMIT_CCK, DEF_TX2_TXOP_LIMIT_CCK,
180 DEF_TX3_TXOP_LIMIT_CCK}
181 };
182
183 static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
184
185 static int from_priority_to_tx_queue[] = {
186 IPW_TX_QUEUE_1, IPW_TX_QUEUE_2, IPW_TX_QUEUE_2, IPW_TX_QUEUE_1,
187 IPW_TX_QUEUE_3, IPW_TX_QUEUE_3, IPW_TX_QUEUE_4, IPW_TX_QUEUE_4
188 };
189
190 static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv);
191
192 static int ipw_send_qos_params_command(struct ipw_priv *priv, struct libipw_qos_parameters
193 *qos_param);
194 static int ipw_send_qos_info_command(struct ipw_priv *priv, struct libipw_qos_information_element
195 *qos_param);
196 #endif /* CONFIG_IPW2200_QOS */
197
198 static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev);
199 static void ipw_remove_current_network(struct ipw_priv *priv);
200 static void ipw_rx(struct ipw_priv *priv);
201 static int ipw_queue_tx_reclaim(struct ipw_priv *priv,
202 struct clx2_tx_queue *txq, int qindex);
203 static int ipw_queue_reset(struct ipw_priv *priv);
204
205 static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf,
206 int len, int sync);
207
208 static void ipw_tx_queue_free(struct ipw_priv *);
209
210 static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *);
211 static void ipw_rx_queue_free(struct ipw_priv *, struct ipw_rx_queue *);
212 static void ipw_rx_queue_replenish(void *);
213 static int ipw_up(struct ipw_priv *);
214 static void ipw_bg_up(struct work_struct *work);
215 static void ipw_down(struct ipw_priv *);
216 static void ipw_bg_down(struct work_struct *work);
217 static int ipw_config(struct ipw_priv *);
218 static int init_supported_rates(struct ipw_priv *priv,
219 struct ipw_supported_rates *prates);
220 static void ipw_set_hwcrypto_keys(struct ipw_priv *);
221 static void ipw_send_wep_keys(struct ipw_priv *, int);
222
223 static int snprint_line(char *buf, size_t count,
224 const u8 * data, u32 len, u32 ofs)
225 {
226 int out, i, j, l;
227 char c;
228
229 out = snprintf(buf, count, "%08X", ofs);
230
231 for (l = 0, i = 0; i < 2; i++) {
232 out += snprintf(buf + out, count - out, " ");
233 for (j = 0; j < 8 && l < len; j++, l++)
234 out += snprintf(buf + out, count - out, "%02X ",
235 data[(i * 8 + j)]);
236 for (; j < 8; j++)
237 out += snprintf(buf + out, count - out, " ");
238 }
239
240 out += snprintf(buf + out, count - out, " ");
241 for (l = 0, i = 0; i < 2; i++) {
242 out += snprintf(buf + out, count - out, " ");
243 for (j = 0; j < 8 && l < len; j++, l++) {
244 c = data[(i * 8 + j)];
245 if (!isascii(c) || !isprint(c))
246 c = '.';
247
248 out += snprintf(buf + out, count - out, "%c", c);
249 }
250
251 for (; j < 8; j++)
252 out += snprintf(buf + out, count - out, " ");
253 }
254
255 return out;
256 }
257
258 static void printk_buf(int level, const u8 * data, u32 len)
259 {
260 char line[81];
261 u32 ofs = 0;
262 if (!(ipw_debug_level & level))
263 return;
264
265 while (len) {
266 snprint_line(line, sizeof(line), &data[ofs],
267 min(len, 16U), ofs);
268 printk(KERN_DEBUG "%s\n", line);
269 ofs += 16;
270 len -= min(len, 16U);
271 }
272 }
273
274 static int snprintk_buf(u8 * output, size_t size, const u8 * data, size_t len)
275 {
276 size_t out = size;
277 u32 ofs = 0;
278 int total = 0;
279
280 while (size && len) {
281 out = snprint_line(output, size, &data[ofs],
282 min_t(size_t, len, 16U), ofs);
283
284 ofs += 16;
285 output += out;
286 size -= out;
287 len -= min_t(size_t, len, 16U);
288 total += out;
289 }
290 return total;
291 }
292
293 /* alias for 32-bit indirect read (for SRAM/reg above 4K), with debug wrapper */
294 static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg);
295 #define ipw_read_reg32(a, b) _ipw_read_reg32(a, b)
296
297 /* alias for 8-bit indirect read (for SRAM/reg above 4K), with debug wrapper */
298 static u8 _ipw_read_reg8(struct ipw_priv *ipw, u32 reg);
299 #define ipw_read_reg8(a, b) _ipw_read_reg8(a, b)
300
301 /* 8-bit indirect write (for SRAM/reg above 4K), with debug wrapper */
302 static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value);
303 static inline void ipw_write_reg8(struct ipw_priv *a, u32 b, u8 c)
304 {
305 IPW_DEBUG_IO("%s %d: write_indirect8(0x%08X, 0x%08X)\n", __FILE__,
306 __LINE__, (u32) (b), (u32) (c));
307 _ipw_write_reg8(a, b, c);
308 }
309
310 /* 16-bit indirect write (for SRAM/reg above 4K), with debug wrapper */
311 static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value);
312 static inline void ipw_write_reg16(struct ipw_priv *a, u32 b, u16 c)
313 {
314 IPW_DEBUG_IO("%s %d: write_indirect16(0x%08X, 0x%08X)\n", __FILE__,
315 __LINE__, (u32) (b), (u32) (c));
316 _ipw_write_reg16(a, b, c);
317 }
318
319 /* 32-bit indirect write (for SRAM/reg above 4K), with debug wrapper */
320 static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value);
321 static inline void ipw_write_reg32(struct ipw_priv *a, u32 b, u32 c)
322 {
323 IPW_DEBUG_IO("%s %d: write_indirect32(0x%08X, 0x%08X)\n", __FILE__,
324 __LINE__, (u32) (b), (u32) (c));
325 _ipw_write_reg32(a, b, c);
326 }
327
328 /* 8-bit direct write (low 4K) */
329 static inline void _ipw_write8(struct ipw_priv *ipw, unsigned long ofs,
330 u8 val)
331 {
332 writeb(val, ipw->hw_base + ofs);
333 }
334
335 /* 8-bit direct write (for low 4K of SRAM/regs), with debug wrapper */
336 #define ipw_write8(ipw, ofs, val) do { \
337 IPW_DEBUG_IO("%s %d: write_direct8(0x%08X, 0x%08X)\n", __FILE__, \
338 __LINE__, (u32)(ofs), (u32)(val)); \
339 _ipw_write8(ipw, ofs, val); \
340 } while (0)
341
342 /* 16-bit direct write (low 4K) */
343 static inline void _ipw_write16(struct ipw_priv *ipw, unsigned long ofs,
344 u16 val)
345 {
346 writew(val, ipw->hw_base + ofs);
347 }
348
349 /* 16-bit direct write (for low 4K of SRAM/regs), with debug wrapper */
350 #define ipw_write16(ipw, ofs, val) do { \
351 IPW_DEBUG_IO("%s %d: write_direct16(0x%08X, 0x%08X)\n", __FILE__, \
352 __LINE__, (u32)(ofs), (u32)(val)); \
353 _ipw_write16(ipw, ofs, val); \
354 } while (0)
355
356 /* 32-bit direct write (low 4K) */
357 static inline void _ipw_write32(struct ipw_priv *ipw, unsigned long ofs,
358 u32 val)
359 {
360 writel(val, ipw->hw_base + ofs);
361 }
362
363 /* 32-bit direct write (for low 4K of SRAM/regs), with debug wrapper */
364 #define ipw_write32(ipw, ofs, val) do { \
365 IPW_DEBUG_IO("%s %d: write_direct32(0x%08X, 0x%08X)\n", __FILE__, \
366 __LINE__, (u32)(ofs), (u32)(val)); \
367 _ipw_write32(ipw, ofs, val); \
368 } while (0)
369
370 /* 8-bit direct read (low 4K) */
371 static inline u8 _ipw_read8(struct ipw_priv *ipw, unsigned long ofs)
372 {
373 return readb(ipw->hw_base + ofs);
374 }
375
376 /* alias to 8-bit direct read (low 4K of SRAM/regs), with debug wrapper */
377 #define ipw_read8(ipw, ofs) ({ \
378 IPW_DEBUG_IO("%s %d: read_direct8(0x%08X)\n", __FILE__, __LINE__, \
379 (u32)(ofs)); \
380 _ipw_read8(ipw, ofs); \
381 })
382
383 /* 16-bit direct read (low 4K) */
384 static inline u16 _ipw_read16(struct ipw_priv *ipw, unsigned long ofs)
385 {
386 return readw(ipw->hw_base + ofs);
387 }
388
389 /* alias to 16-bit direct read (low 4K of SRAM/regs), with debug wrapper */
390 #define ipw_read16(ipw, ofs) ({ \
391 IPW_DEBUG_IO("%s %d: read_direct16(0x%08X)\n", __FILE__, __LINE__, \
392 (u32)(ofs)); \
393 _ipw_read16(ipw, ofs); \
394 })
395
396 /* 32-bit direct read (low 4K) */
397 static inline u32 _ipw_read32(struct ipw_priv *ipw, unsigned long ofs)
398 {
399 return readl(ipw->hw_base + ofs);
400 }
401
402 /* alias to 32-bit direct read (low 4K of SRAM/regs), with debug wrapper */
403 #define ipw_read32(ipw, ofs) ({ \
404 IPW_DEBUG_IO("%s %d: read_direct32(0x%08X)\n", __FILE__, __LINE__, \
405 (u32)(ofs)); \
406 _ipw_read32(ipw, ofs); \
407 })
408
409 static void _ipw_read_indirect(struct ipw_priv *, u32, u8 *, int);
410 /* alias to multi-byte read (SRAM/regs above 4K), with debug wrapper */
411 #define ipw_read_indirect(a, b, c, d) ({ \
412 IPW_DEBUG_IO("%s %d: read_indirect(0x%08X) %u bytes\n", __FILE__, \
413 __LINE__, (u32)(b), (u32)(d)); \
414 _ipw_read_indirect(a, b, c, d); \
415 })
416
417 /* alias to multi-byte read (SRAM/regs above 4K), with debug wrapper */
418 static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * data,
419 int num);
420 #define ipw_write_indirect(a, b, c, d) do { \
421 IPW_DEBUG_IO("%s %d: write_indirect(0x%08X) %u bytes\n", __FILE__, \
422 __LINE__, (u32)(b), (u32)(d)); \
423 _ipw_write_indirect(a, b, c, d); \
424 } while (0)
425
426 /* 32-bit indirect write (above 4K) */
427 static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value)
428 {
429 IPW_DEBUG_IO(" %p : reg = 0x%8X : value = 0x%8X\n", priv, reg, value);
430 _ipw_write32(priv, IPW_INDIRECT_ADDR, reg);
431 _ipw_write32(priv, IPW_INDIRECT_DATA, value);
432 }
433
434 /* 8-bit indirect write (above 4K) */
435 static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value)
436 {
437 u32 aligned_addr = reg & IPW_INDIRECT_ADDR_MASK; /* dword align */
438 u32 dif_len = reg - aligned_addr;
439
440 IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value);
441 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
442 _ipw_write8(priv, IPW_INDIRECT_DATA + dif_len, value);
443 }
444
445 /* 16-bit indirect write (above 4K) */
446 static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value)
447 {
448 u32 aligned_addr = reg & IPW_INDIRECT_ADDR_MASK; /* dword align */
449 u32 dif_len = (reg - aligned_addr) & (~0x1ul);
450
451 IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value);
452 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
453 _ipw_write16(priv, IPW_INDIRECT_DATA + dif_len, value);
454 }
455
456 /* 8-bit indirect read (above 4K) */
457 static u8 _ipw_read_reg8(struct ipw_priv *priv, u32 reg)
458 {
459 u32 word;
460 _ipw_write32(priv, IPW_INDIRECT_ADDR, reg & IPW_INDIRECT_ADDR_MASK);
461 IPW_DEBUG_IO(" reg = 0x%8X : \n", reg);
462 word = _ipw_read32(priv, IPW_INDIRECT_DATA);
463 return (word >> ((reg & 0x3) * 8)) & 0xff;
464 }
465
466 /* 32-bit indirect read (above 4K) */
467 static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg)
468 {
469 u32 value;
470
471 IPW_DEBUG_IO("%p : reg = 0x%08x\n", priv, reg);
472
473 _ipw_write32(priv, IPW_INDIRECT_ADDR, reg);
474 value = _ipw_read32(priv, IPW_INDIRECT_DATA);
475 IPW_DEBUG_IO(" reg = 0x%4X : value = 0x%4x \n", reg, value);
476 return value;
477 }
478
479 /* General purpose, no alignment requirement, iterative (multi-byte) read, */
480 /* for area above 1st 4K of SRAM/reg space */
481 static void _ipw_read_indirect(struct ipw_priv *priv, u32 addr, u8 * buf,
482 int num)
483 {
484 u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK; /* dword align */
485 u32 dif_len = addr - aligned_addr;
486 u32 i;
487
488 IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num);
489
490 if (num <= 0) {
491 return;
492 }
493
494 /* Read the first dword (or portion) byte by byte */
495 if (unlikely(dif_len)) {
496 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
497 /* Start reading at aligned_addr + dif_len */
498 for (i = dif_len; ((i < 4) && (num > 0)); i++, num--)
499 *buf++ = _ipw_read8(priv, IPW_INDIRECT_DATA + i);
500 aligned_addr += 4;
501 }
502
503 /* Read all of the middle dwords as dwords, with auto-increment */
504 _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr);
505 for (; num >= 4; buf += 4, aligned_addr += 4, num -= 4)
506 *(u32 *) buf = _ipw_read32(priv, IPW_AUTOINC_DATA);
507
508 /* Read the last dword (or portion) byte by byte */
509 if (unlikely(num)) {
510 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
511 for (i = 0; num > 0; i++, num--)
512 *buf++ = ipw_read8(priv, IPW_INDIRECT_DATA + i);
513 }
514 }
515
516 /* General purpose, no alignment requirement, iterative (multi-byte) write, */
517 /* for area above 1st 4K of SRAM/reg space */
518 static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * buf,
519 int num)
520 {
521 u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK; /* dword align */
522 u32 dif_len = addr - aligned_addr;
523 u32 i;
524
525 IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num);
526
527 if (num <= 0) {
528 return;
529 }
530
531 /* Write the first dword (or portion) byte by byte */
532 if (unlikely(dif_len)) {
533 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
534 /* Start writing at aligned_addr + dif_len */
535 for (i = dif_len; ((i < 4) && (num > 0)); i++, num--, buf++)
536 _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf);
537 aligned_addr += 4;
538 }
539
540 /* Write all of the middle dwords as dwords, with auto-increment */
541 _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr);
542 for (; num >= 4; buf += 4, aligned_addr += 4, num -= 4)
543 _ipw_write32(priv, IPW_AUTOINC_DATA, *(u32 *) buf);
544
545 /* Write the last dword (or portion) byte by byte */
546 if (unlikely(num)) {
547 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
548 for (i = 0; num > 0; i++, num--, buf++)
549 _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf);
550 }
551 }
552
553 /* General purpose, no alignment requirement, iterative (multi-byte) write, */
554 /* for 1st 4K of SRAM/regs space */
555 static void ipw_write_direct(struct ipw_priv *priv, u32 addr, void *buf,
556 int num)
557 {
558 memcpy_toio((priv->hw_base + addr), buf, num);
559 }
560
561 /* Set bit(s) in low 4K of SRAM/regs */
562 static inline void ipw_set_bit(struct ipw_priv *priv, u32 reg, u32 mask)
563 {
564 ipw_write32(priv, reg, ipw_read32(priv, reg) | mask);
565 }
566
567 /* Clear bit(s) in low 4K of SRAM/regs */
568 static inline void ipw_clear_bit(struct ipw_priv *priv, u32 reg, u32 mask)
569 {
570 ipw_write32(priv, reg, ipw_read32(priv, reg) & ~mask);
571 }
572
573 static inline void __ipw_enable_interrupts(struct ipw_priv *priv)
574 {
575 if (priv->status & STATUS_INT_ENABLED)
576 return;
577 priv->status |= STATUS_INT_ENABLED;
578 ipw_write32(priv, IPW_INTA_MASK_R, IPW_INTA_MASK_ALL);
579 }
580
581 static inline void __ipw_disable_interrupts(struct ipw_priv *priv)
582 {
583 if (!(priv->status & STATUS_INT_ENABLED))
584 return;
585 priv->status &= ~STATUS_INT_ENABLED;
586 ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
587 }
588
589 static inline void ipw_enable_interrupts(struct ipw_priv *priv)
590 {
591 unsigned long flags;
592
593 spin_lock_irqsave(&priv->irq_lock, flags);
594 __ipw_enable_interrupts(priv);
595 spin_unlock_irqrestore(&priv->irq_lock, flags);
596 }
597
598 static inline void ipw_disable_interrupts(struct ipw_priv *priv)
599 {
600 unsigned long flags;
601
602 spin_lock_irqsave(&priv->irq_lock, flags);
603 __ipw_disable_interrupts(priv);
604 spin_unlock_irqrestore(&priv->irq_lock, flags);
605 }
606
607 static char *ipw_error_desc(u32 val)
608 {
609 switch (val) {
610 case IPW_FW_ERROR_OK:
611 return "ERROR_OK";
612 case IPW_FW_ERROR_FAIL:
613 return "ERROR_FAIL";
614 case IPW_FW_ERROR_MEMORY_UNDERFLOW:
615 return "MEMORY_UNDERFLOW";
616 case IPW_FW_ERROR_MEMORY_OVERFLOW:
617 return "MEMORY_OVERFLOW";
618 case IPW_FW_ERROR_BAD_PARAM:
619 return "BAD_PARAM";
620 case IPW_FW_ERROR_BAD_CHECKSUM:
621 return "BAD_CHECKSUM";
622 case IPW_FW_ERROR_NMI_INTERRUPT:
623 return "NMI_INTERRUPT";
624 case IPW_FW_ERROR_BAD_DATABASE:
625 return "BAD_DATABASE";
626 case IPW_FW_ERROR_ALLOC_FAIL:
627 return "ALLOC_FAIL";
628 case IPW_FW_ERROR_DMA_UNDERRUN:
629 return "DMA_UNDERRUN";
630 case IPW_FW_ERROR_DMA_STATUS:
631 return "DMA_STATUS";
632 case IPW_FW_ERROR_DINO_ERROR:
633 return "DINO_ERROR";
634 case IPW_FW_ERROR_EEPROM_ERROR:
635 return "EEPROM_ERROR";
636 case IPW_FW_ERROR_SYSASSERT:
637 return "SYSASSERT";
638 case IPW_FW_ERROR_FATAL_ERROR:
639 return "FATAL_ERROR";
640 default:
641 return "UNKNOWN_ERROR";
642 }
643 }
644
645 static void ipw_dump_error_log(struct ipw_priv *priv,
646 struct ipw_fw_error *error)
647 {
648 u32 i;
649
650 if (!error) {
651 IPW_ERROR("Error allocating and capturing error log. "
652 "Nothing to dump.\n");
653 return;
654 }
655
656 IPW_ERROR("Start IPW Error Log Dump:\n");
657 IPW_ERROR("Status: 0x%08X, Config: %08X\n",
658 error->status, error->config);
659
660 for (i = 0; i < error->elem_len; i++)
661 IPW_ERROR("%s %i 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
662 ipw_error_desc(error->elem[i].desc),
663 error->elem[i].time,
664 error->elem[i].blink1,
665 error->elem[i].blink2,
666 error->elem[i].link1,
667 error->elem[i].link2, error->elem[i].data);
668 for (i = 0; i < error->log_len; i++)
669 IPW_ERROR("%i\t0x%08x\t%i\n",
670 error->log[i].time,
671 error->log[i].data, error->log[i].event);
672 }
673
674 static inline int ipw_is_init(struct ipw_priv *priv)
675 {
676 return (priv->status & STATUS_INIT) ? 1 : 0;
677 }
678
679 static int ipw_get_ordinal(struct ipw_priv *priv, u32 ord, void *val, u32 * len)
680 {
681 u32 addr, field_info, field_len, field_count, total_len;
682
683 IPW_DEBUG_ORD("ordinal = %i\n", ord);
684
685 if (!priv || !val || !len) {
686 IPW_DEBUG_ORD("Invalid argument\n");
687 return -EINVAL;
688 }
689
690 /* verify device ordinal tables have been initialized */
691 if (!priv->table0_addr || !priv->table1_addr || !priv->table2_addr) {
692 IPW_DEBUG_ORD("Access ordinals before initialization\n");
693 return -EINVAL;
694 }
695
696 switch (IPW_ORD_TABLE_ID_MASK & ord) {
697 case IPW_ORD_TABLE_0_MASK:
698 /*
699 * TABLE 0: Direct access to a table of 32 bit values
700 *
701 * This is a very simple table with the data directly
702 * read from the table
703 */
704
705 /* remove the table id from the ordinal */
706 ord &= IPW_ORD_TABLE_VALUE_MASK;
707
708 /* boundary check */
709 if (ord > priv->table0_len) {
710 IPW_DEBUG_ORD("ordinal value (%i) longer then "
711 "max (%i)\n", ord, priv->table0_len);
712 return -EINVAL;
713 }
714
715 /* verify we have enough room to store the value */
716 if (*len < sizeof(u32)) {
717 IPW_DEBUG_ORD("ordinal buffer length too small, "
718 "need %zd\n", sizeof(u32));
719 return -EINVAL;
720 }
721
722 IPW_DEBUG_ORD("Reading TABLE0[%i] from offset 0x%08x\n",
723 ord, priv->table0_addr + (ord << 2));
724
725 *len = sizeof(u32);
726 ord <<= 2;
727 *((u32 *) val) = ipw_read32(priv, priv->table0_addr + ord);
728 break;
729
730 case IPW_ORD_TABLE_1_MASK:
731 /*
732 * TABLE 1: Indirect access to a table of 32 bit values
733 *
734 * This is a fairly large table of u32 values each
735 * representing starting addr for the data (which is
736 * also a u32)
737 */
738
739 /* remove the table id from the ordinal */
740 ord &= IPW_ORD_TABLE_VALUE_MASK;
741
742 /* boundary check */
743 if (ord > priv->table1_len) {
744 IPW_DEBUG_ORD("ordinal value too long\n");
745 return -EINVAL;
746 }
747
748 /* verify we have enough room to store the value */
749 if (*len < sizeof(u32)) {
750 IPW_DEBUG_ORD("ordinal buffer length too small, "
751 "need %zd\n", sizeof(u32));
752 return -EINVAL;
753 }
754
755 *((u32 *) val) =
756 ipw_read_reg32(priv, (priv->table1_addr + (ord << 2)));
757 *len = sizeof(u32);
758 break;
759
760 case IPW_ORD_TABLE_2_MASK:
761 /*
762 * TABLE 2: Indirect access to a table of variable sized values
763 *
764 * This table consist of six values, each containing
765 * - dword containing the starting offset of the data
766 * - dword containing the lengh in the first 16bits
767 * and the count in the second 16bits
768 */
769
770 /* remove the table id from the ordinal */
771 ord &= IPW_ORD_TABLE_VALUE_MASK;
772
773 /* boundary check */
774 if (ord > priv->table2_len) {
775 IPW_DEBUG_ORD("ordinal value too long\n");
776 return -EINVAL;
777 }
778
779 /* get the address of statistic */
780 addr = ipw_read_reg32(priv, priv->table2_addr + (ord << 3));
781
782 /* get the second DW of statistics ;
783 * two 16-bit words - first is length, second is count */
784 field_info =
785 ipw_read_reg32(priv,
786 priv->table2_addr + (ord << 3) +
787 sizeof(u32));
788
789 /* get each entry length */
790 field_len = *((u16 *) & field_info);
791
792 /* get number of entries */
793 field_count = *(((u16 *) & field_info) + 1);
794
795 /* abort if not enough memory */
796 total_len = field_len * field_count;
797 if (total_len > *len) {
798 *len = total_len;
799 return -EINVAL;
800 }
801
802 *len = total_len;
803 if (!total_len)
804 return 0;
805
806 IPW_DEBUG_ORD("addr = 0x%08x, total_len = %i, "
807 "field_info = 0x%08x\n",
808 addr, total_len, field_info);
809 ipw_read_indirect(priv, addr, val, total_len);
810 break;
811
812 default:
813 IPW_DEBUG_ORD("Invalid ordinal!\n");
814 return -EINVAL;
815
816 }
817
818 return 0;
819 }
820
821 static void ipw_init_ordinals(struct ipw_priv *priv)
822 {
823 priv->table0_addr = IPW_ORDINALS_TABLE_LOWER;
824 priv->table0_len = ipw_read32(priv, priv->table0_addr);
825
826 IPW_DEBUG_ORD("table 0 offset at 0x%08x, len = %i\n",
827 priv->table0_addr, priv->table0_len);
828
829 priv->table1_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_1);
830 priv->table1_len = ipw_read_reg32(priv, priv->table1_addr);
831
832 IPW_DEBUG_ORD("table 1 offset at 0x%08x, len = %i\n",
833 priv->table1_addr, priv->table1_len);
834
835 priv->table2_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_2);
836 priv->table2_len = ipw_read_reg32(priv, priv->table2_addr);
837 priv->table2_len &= 0x0000ffff; /* use first two bytes */
838
839 IPW_DEBUG_ORD("table 2 offset at 0x%08x, len = %i\n",
840 priv->table2_addr, priv->table2_len);
841
842 }
843
844 static u32 ipw_register_toggle(u32 reg)
845 {
846 reg &= ~IPW_START_STANDBY;
847 if (reg & IPW_GATE_ODMA)
848 reg &= ~IPW_GATE_ODMA;
849 if (reg & IPW_GATE_IDMA)
850 reg &= ~IPW_GATE_IDMA;
851 if (reg & IPW_GATE_ADMA)
852 reg &= ~IPW_GATE_ADMA;
853 return reg;
854 }
855
856 /*
857 * LED behavior:
858 * - On radio ON, turn on any LEDs that require to be on during start
859 * - On initialization, start unassociated blink
860 * - On association, disable unassociated blink
861 * - On disassociation, start unassociated blink
862 * - On radio OFF, turn off any LEDs started during radio on
863 *
864 */
865 #define LD_TIME_LINK_ON msecs_to_jiffies(300)
866 #define LD_TIME_LINK_OFF msecs_to_jiffies(2700)
867 #define LD_TIME_ACT_ON msecs_to_jiffies(250)
868
869 static void ipw_led_link_on(struct ipw_priv *priv)
870 {
871 unsigned long flags;
872 u32 led;
873
874 /* If configured to not use LEDs, or nic_type is 1,
875 * then we don't toggle a LINK led */
876 if (priv->config & CFG_NO_LED || priv->nic_type == EEPROM_NIC_TYPE_1)
877 return;
878
879 spin_lock_irqsave(&priv->lock, flags);
880
881 if (!(priv->status & STATUS_RF_KILL_MASK) &&
882 !(priv->status & STATUS_LED_LINK_ON)) {
883 IPW_DEBUG_LED("Link LED On\n");
884 led = ipw_read_reg32(priv, IPW_EVENT_REG);
885 led |= priv->led_association_on;
886
887 led = ipw_register_toggle(led);
888
889 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
890 ipw_write_reg32(priv, IPW_EVENT_REG, led);
891
892 priv->status |= STATUS_LED_LINK_ON;
893
894 /* If we aren't associated, schedule turning the LED off */
895 if (!(priv->status & STATUS_ASSOCIATED))
896 queue_delayed_work(priv->workqueue,
897 &priv->led_link_off,
898 LD_TIME_LINK_ON);
899 }
900
901 spin_unlock_irqrestore(&priv->lock, flags);
902 }
903
904 static void ipw_bg_led_link_on(struct work_struct *work)
905 {
906 struct ipw_priv *priv =
907 container_of(work, struct ipw_priv, led_link_on.work);
908 mutex_lock(&priv->mutex);
909 ipw_led_link_on(priv);
910 mutex_unlock(&priv->mutex);
911 }
912
913 static void ipw_led_link_off(struct ipw_priv *priv)
914 {
915 unsigned long flags;
916 u32 led;
917
918 /* If configured not to use LEDs, or nic type is 1,
919 * then we don't goggle the LINK led. */
920 if (priv->config & CFG_NO_LED || priv->nic_type == EEPROM_NIC_TYPE_1)
921 return;
922
923 spin_lock_irqsave(&priv->lock, flags);
924
925 if (priv->status & STATUS_LED_LINK_ON) {
926 led = ipw_read_reg32(priv, IPW_EVENT_REG);
927 led &= priv->led_association_off;
928 led = ipw_register_toggle(led);
929
930 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
931 ipw_write_reg32(priv, IPW_EVENT_REG, led);
932
933 IPW_DEBUG_LED("Link LED Off\n");
934
935 priv->status &= ~STATUS_LED_LINK_ON;
936
937 /* If we aren't associated and the radio is on, schedule
938 * turning the LED on (blink while unassociated) */
939 if (!(priv->status & STATUS_RF_KILL_MASK) &&
940 !(priv->status & STATUS_ASSOCIATED))
941 queue_delayed_work(priv->workqueue, &priv->led_link_on,
942 LD_TIME_LINK_OFF);
943
944 }
945
946 spin_unlock_irqrestore(&priv->lock, flags);
947 }
948
949 static void ipw_bg_led_link_off(struct work_struct *work)
950 {
951 struct ipw_priv *priv =
952 container_of(work, struct ipw_priv, led_link_off.work);
953 mutex_lock(&priv->mutex);
954 ipw_led_link_off(priv);
955 mutex_unlock(&priv->mutex);
956 }
957
958 static void __ipw_led_activity_on(struct ipw_priv *priv)
959 {
960 u32 led;
961
962 if (priv->config & CFG_NO_LED)
963 return;
964
965 if (priv->status & STATUS_RF_KILL_MASK)
966 return;
967
968 if (!(priv->status & STATUS_LED_ACT_ON)) {
969 led = ipw_read_reg32(priv, IPW_EVENT_REG);
970 led |= priv->led_activity_on;
971
972 led = ipw_register_toggle(led);
973
974 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
975 ipw_write_reg32(priv, IPW_EVENT_REG, led);
976
977 IPW_DEBUG_LED("Activity LED On\n");
978
979 priv->status |= STATUS_LED_ACT_ON;
980
981 cancel_delayed_work(&priv->led_act_off);
982 queue_delayed_work(priv->workqueue, &priv->led_act_off,
983 LD_TIME_ACT_ON);
984 } else {
985 /* Reschedule LED off for full time period */
986 cancel_delayed_work(&priv->led_act_off);
987 queue_delayed_work(priv->workqueue, &priv->led_act_off,
988 LD_TIME_ACT_ON);
989 }
990 }
991
992 #if 0
993 void ipw_led_activity_on(struct ipw_priv *priv)
994 {
995 unsigned long flags;
996 spin_lock_irqsave(&priv->lock, flags);
997 __ipw_led_activity_on(priv);
998 spin_unlock_irqrestore(&priv->lock, flags);
999 }
1000 #endif /* 0 */
1001
1002 static void ipw_led_activity_off(struct ipw_priv *priv)
1003 {
1004 unsigned long flags;
1005 u32 led;
1006
1007 if (priv->config & CFG_NO_LED)
1008 return;
1009
1010 spin_lock_irqsave(&priv->lock, flags);
1011
1012 if (priv->status & STATUS_LED_ACT_ON) {
1013 led = ipw_read_reg32(priv, IPW_EVENT_REG);
1014 led &= priv->led_activity_off;
1015
1016 led = ipw_register_toggle(led);
1017
1018 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
1019 ipw_write_reg32(priv, IPW_EVENT_REG, led);
1020
1021 IPW_DEBUG_LED("Activity LED Off\n");
1022
1023 priv->status &= ~STATUS_LED_ACT_ON;
1024 }
1025
1026 spin_unlock_irqrestore(&priv->lock, flags);
1027 }
1028
1029 static void ipw_bg_led_activity_off(struct work_struct *work)
1030 {
1031 struct ipw_priv *priv =
1032 container_of(work, struct ipw_priv, led_act_off.work);
1033 mutex_lock(&priv->mutex);
1034 ipw_led_activity_off(priv);
1035 mutex_unlock(&priv->mutex);
1036 }
1037
1038 static void ipw_led_band_on(struct ipw_priv *priv)
1039 {
1040 unsigned long flags;
1041 u32 led;
1042
1043 /* Only nic type 1 supports mode LEDs */
1044 if (priv->config & CFG_NO_LED ||
1045 priv->nic_type != EEPROM_NIC_TYPE_1 || !priv->assoc_network)
1046 return;
1047
1048 spin_lock_irqsave(&priv->lock, flags);
1049
1050 led = ipw_read_reg32(priv, IPW_EVENT_REG);
1051 if (priv->assoc_network->mode == IEEE_A) {
1052 led |= priv->led_ofdm_on;
1053 led &= priv->led_association_off;
1054 IPW_DEBUG_LED("Mode LED On: 802.11a\n");
1055 } else if (priv->assoc_network->mode == IEEE_G) {
1056 led |= priv->led_ofdm_on;
1057 led |= priv->led_association_on;
1058 IPW_DEBUG_LED("Mode LED On: 802.11g\n");
1059 } else {
1060 led &= priv->led_ofdm_off;
1061 led |= priv->led_association_on;
1062 IPW_DEBUG_LED("Mode LED On: 802.11b\n");
1063 }
1064
1065 led = ipw_register_toggle(led);
1066
1067 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
1068 ipw_write_reg32(priv, IPW_EVENT_REG, led);
1069
1070 spin_unlock_irqrestore(&priv->lock, flags);
1071 }
1072
1073 static void ipw_led_band_off(struct ipw_priv *priv)
1074 {
1075 unsigned long flags;
1076 u32 led;
1077
1078 /* Only nic type 1 supports mode LEDs */
1079 if (priv->config & CFG_NO_LED || priv->nic_type != EEPROM_NIC_TYPE_1)
1080 return;
1081
1082 spin_lock_irqsave(&priv->lock, flags);
1083
1084 led = ipw_read_reg32(priv, IPW_EVENT_REG);
1085 led &= priv->led_ofdm_off;
1086 led &= priv->led_association_off;
1087
1088 led = ipw_register_toggle(led);
1089
1090 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
1091 ipw_write_reg32(priv, IPW_EVENT_REG, led);
1092
1093 spin_unlock_irqrestore(&priv->lock, flags);
1094 }
1095
1096 static void ipw_led_radio_on(struct ipw_priv *priv)
1097 {
1098 ipw_led_link_on(priv);
1099 }
1100
1101 static void ipw_led_radio_off(struct ipw_priv *priv)
1102 {
1103 ipw_led_activity_off(priv);
1104 ipw_led_link_off(priv);
1105 }
1106
1107 static void ipw_led_link_up(struct ipw_priv *priv)
1108 {
1109 /* Set the Link Led on for all nic types */
1110 ipw_led_link_on(priv);
1111 }
1112
1113 static void ipw_led_link_down(struct ipw_priv *priv)
1114 {
1115 ipw_led_activity_off(priv);
1116 ipw_led_link_off(priv);
1117
1118 if (priv->status & STATUS_RF_KILL_MASK)
1119 ipw_led_radio_off(priv);
1120 }
1121
1122 static void ipw_led_init(struct ipw_priv *priv)
1123 {
1124 priv->nic_type = priv->eeprom[EEPROM_NIC_TYPE];
1125
1126 /* Set the default PINs for the link and activity leds */
1127 priv->led_activity_on = IPW_ACTIVITY_LED;
1128 priv->led_activity_off = ~(IPW_ACTIVITY_LED);
1129
1130 priv->led_association_on = IPW_ASSOCIATED_LED;
1131 priv->led_association_off = ~(IPW_ASSOCIATED_LED);
1132
1133 /* Set the default PINs for the OFDM leds */
1134 priv->led_ofdm_on = IPW_OFDM_LED;
1135 priv->led_ofdm_off = ~(IPW_OFDM_LED);
1136
1137 switch (priv->nic_type) {
1138 case EEPROM_NIC_TYPE_1:
1139 /* In this NIC type, the LEDs are reversed.... */
1140 priv->led_activity_on = IPW_ASSOCIATED_LED;
1141 priv->led_activity_off = ~(IPW_ASSOCIATED_LED);
1142 priv->led_association_on = IPW_ACTIVITY_LED;
1143 priv->led_association_off = ~(IPW_ACTIVITY_LED);
1144
1145 if (!(priv->config & CFG_NO_LED))
1146 ipw_led_band_on(priv);
1147
1148 /* And we don't blink link LEDs for this nic, so
1149 * just return here */
1150 return;
1151
1152 case EEPROM_NIC_TYPE_3:
1153 case EEPROM_NIC_TYPE_2:
1154 case EEPROM_NIC_TYPE_4:
1155 case EEPROM_NIC_TYPE_0:
1156 break;
1157
1158 default:
1159 IPW_DEBUG_INFO("Unknown NIC type from EEPROM: %d\n",
1160 priv->nic_type);
1161 priv->nic_type = EEPROM_NIC_TYPE_0;
1162 break;
1163 }
1164
1165 if (!(priv->config & CFG_NO_LED)) {
1166 if (priv->status & STATUS_ASSOCIATED)
1167 ipw_led_link_on(priv);
1168 else
1169 ipw_led_link_off(priv);
1170 }
1171 }
1172
1173 static void ipw_led_shutdown(struct ipw_priv *priv)
1174 {
1175 ipw_led_activity_off(priv);
1176 ipw_led_link_off(priv);
1177 ipw_led_band_off(priv);
1178 cancel_delayed_work(&priv->led_link_on);
1179 cancel_delayed_work(&priv->led_link_off);
1180 cancel_delayed_work(&priv->led_act_off);
1181 }
1182
1183 /*
1184 * The following adds a new attribute to the sysfs representation
1185 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/ipw/)
1186 * used for controling the debug level.
1187 *
1188 * See the level definitions in ipw for details.
1189 */
1190 static ssize_t show_debug_level(struct device_driver *d, char *buf)
1191 {
1192 return sprintf(buf, "0x%08X\n", ipw_debug_level);
1193 }
1194
1195 static ssize_t store_debug_level(struct device_driver *d, const char *buf,
1196 size_t count)
1197 {
1198 char *p = (char *)buf;
1199 u32 val;
1200
1201 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1202 p++;
1203 if (p[0] == 'x' || p[0] == 'X')
1204 p++;
1205 val = simple_strtoul(p, &p, 16);
1206 } else
1207 val = simple_strtoul(p, &p, 10);
1208 if (p == buf)
1209 printk(KERN_INFO DRV_NAME
1210 ": %s is not in hex or decimal form.\n", buf);
1211 else
1212 ipw_debug_level = val;
1213
1214 return strnlen(buf, count);
1215 }
1216
1217 static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
1218 show_debug_level, store_debug_level);
1219
1220 static inline u32 ipw_get_event_log_len(struct ipw_priv *priv)
1221 {
1222 /* length = 1st dword in log */
1223 return ipw_read_reg32(priv, ipw_read32(priv, IPW_EVENT_LOG));
1224 }
1225
1226 static void ipw_capture_event_log(struct ipw_priv *priv,
1227 u32 log_len, struct ipw_event *log)
1228 {
1229 u32 base;
1230
1231 if (log_len) {
1232 base = ipw_read32(priv, IPW_EVENT_LOG);
1233 ipw_read_indirect(priv, base + sizeof(base) + sizeof(u32),
1234 (u8 *) log, sizeof(*log) * log_len);
1235 }
1236 }
1237
1238 static struct ipw_fw_error *ipw_alloc_error_log(struct ipw_priv *priv)
1239 {
1240 struct ipw_fw_error *error;
1241 u32 log_len = ipw_get_event_log_len(priv);
1242 u32 base = ipw_read32(priv, IPW_ERROR_LOG);
1243 u32 elem_len = ipw_read_reg32(priv, base);
1244
1245 error = kmalloc(sizeof(*error) +
1246 sizeof(*error->elem) * elem_len +
1247 sizeof(*error->log) * log_len, GFP_ATOMIC);
1248 if (!error) {
1249 IPW_ERROR("Memory allocation for firmware error log "
1250 "failed.\n");
1251 return NULL;
1252 }
1253 error->jiffies = jiffies;
1254 error->status = priv->status;
1255 error->config = priv->config;
1256 error->elem_len = elem_len;
1257 error->log_len = log_len;
1258 error->elem = (struct ipw_error_elem *)error->payload;
1259 error->log = (struct ipw_event *)(error->elem + elem_len);
1260
1261 ipw_capture_event_log(priv, log_len, error->log);
1262
1263 if (elem_len)
1264 ipw_read_indirect(priv, base + sizeof(base), (u8 *) error->elem,
1265 sizeof(*error->elem) * elem_len);
1266
1267 return error;
1268 }
1269
1270 static ssize_t show_event_log(struct device *d,
1271 struct device_attribute *attr, char *buf)
1272 {
1273 struct ipw_priv *priv = dev_get_drvdata(d);
1274 u32 log_len = ipw_get_event_log_len(priv);
1275 u32 log_size;
1276 struct ipw_event *log;
1277 u32 len = 0, i;
1278
1279 /* not using min() because of its strict type checking */
1280 log_size = PAGE_SIZE / sizeof(*log) > log_len ?
1281 sizeof(*log) * log_len : PAGE_SIZE;
1282 log = kzalloc(log_size, GFP_KERNEL);
1283 if (!log) {
1284 IPW_ERROR("Unable to allocate memory for log\n");
1285 return 0;
1286 }
1287 log_len = log_size / sizeof(*log);
1288 ipw_capture_event_log(priv, log_len, log);
1289
1290 len += snprintf(buf + len, PAGE_SIZE - len, "%08X", log_len);
1291 for (i = 0; i < log_len; i++)
1292 len += snprintf(buf + len, PAGE_SIZE - len,
1293 "\n%08X%08X%08X",
1294 log[i].time, log[i].event, log[i].data);
1295 len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1296 kfree(log);
1297 return len;
1298 }
1299
1300 static DEVICE_ATTR(event_log, S_IRUGO, show_event_log, NULL);
1301
1302 static ssize_t show_error(struct device *d,
1303 struct device_attribute *attr, char *buf)
1304 {
1305 struct ipw_priv *priv = dev_get_drvdata(d);
1306 u32 len = 0, i;
1307 if (!priv->error)
1308 return 0;
1309 len += snprintf(buf + len, PAGE_SIZE - len,
1310 "%08lX%08X%08X%08X",
1311 priv->error->jiffies,
1312 priv->error->status,
1313 priv->error->config, priv->error->elem_len);
1314 for (i = 0; i < priv->error->elem_len; i++)
1315 len += snprintf(buf + len, PAGE_SIZE - len,
1316 "\n%08X%08X%08X%08X%08X%08X%08X",
1317 priv->error->elem[i].time,
1318 priv->error->elem[i].desc,
1319 priv->error->elem[i].blink1,
1320 priv->error->elem[i].blink2,
1321 priv->error->elem[i].link1,
1322 priv->error->elem[i].link2,
1323 priv->error->elem[i].data);
1324
1325 len += snprintf(buf + len, PAGE_SIZE - len,
1326 "\n%08X", priv->error->log_len);
1327 for (i = 0; i < priv->error->log_len; i++)
1328 len += snprintf(buf + len, PAGE_SIZE - len,
1329 "\n%08X%08X%08X",
1330 priv->error->log[i].time,
1331 priv->error->log[i].event,
1332 priv->error->log[i].data);
1333 len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1334 return len;
1335 }
1336
1337 static ssize_t clear_error(struct device *d,
1338 struct device_attribute *attr,
1339 const char *buf, size_t count)
1340 {
1341 struct ipw_priv *priv = dev_get_drvdata(d);
1342
1343 kfree(priv->error);
1344 priv->error = NULL;
1345 return count;
1346 }
1347
1348 static DEVICE_ATTR(error, S_IRUGO | S_IWUSR, show_error, clear_error);
1349
1350 static ssize_t show_cmd_log(struct device *d,
1351 struct device_attribute *attr, char *buf)
1352 {
1353 struct ipw_priv *priv = dev_get_drvdata(d);
1354 u32 len = 0, i;
1355 if (!priv->cmdlog)
1356 return 0;
1357 for (i = (priv->cmdlog_pos + 1) % priv->cmdlog_len;
1358 (i != priv->cmdlog_pos) && (PAGE_SIZE - len);
1359 i = (i + 1) % priv->cmdlog_len) {
1360 len +=
1361 snprintf(buf + len, PAGE_SIZE - len,
1362 "\n%08lX%08X%08X%08X\n", priv->cmdlog[i].jiffies,
1363 priv->cmdlog[i].retcode, priv->cmdlog[i].cmd.cmd,
1364 priv->cmdlog[i].cmd.len);
1365 len +=
1366 snprintk_buf(buf + len, PAGE_SIZE - len,
1367 (u8 *) priv->cmdlog[i].cmd.param,
1368 priv->cmdlog[i].cmd.len);
1369 len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1370 }
1371 len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1372 return len;
1373 }
1374
1375 static DEVICE_ATTR(cmd_log, S_IRUGO, show_cmd_log, NULL);
1376
1377 #ifdef CONFIG_IPW2200_PROMISCUOUS
1378 static void ipw_prom_free(struct ipw_priv *priv);
1379 static int ipw_prom_alloc(struct ipw_priv *priv);
1380 static ssize_t store_rtap_iface(struct device *d,
1381 struct device_attribute *attr,
1382 const char *buf, size_t count)
1383 {
1384 struct ipw_priv *priv = dev_get_drvdata(d);
1385 int rc = 0;
1386
1387 if (count < 1)
1388 return -EINVAL;
1389
1390 switch (buf[0]) {
1391 case '0':
1392 if (!rtap_iface)
1393 return count;
1394
1395 if (netif_running(priv->prom_net_dev)) {
1396 IPW_WARNING("Interface is up. Cannot unregister.\n");
1397 return count;
1398 }
1399
1400 ipw_prom_free(priv);
1401 rtap_iface = 0;
1402 break;
1403
1404 case '1':
1405 if (rtap_iface)
1406 return count;
1407
1408 rc = ipw_prom_alloc(priv);
1409 if (!rc)
1410 rtap_iface = 1;
1411 break;
1412
1413 default:
1414 return -EINVAL;
1415 }
1416
1417 if (rc) {
1418 IPW_ERROR("Failed to register promiscuous network "
1419 "device (error %d).\n", rc);
1420 }
1421
1422 return count;
1423 }
1424
1425 static ssize_t show_rtap_iface(struct device *d,
1426 struct device_attribute *attr,
1427 char *buf)
1428 {
1429 struct ipw_priv *priv = dev_get_drvdata(d);
1430 if (rtap_iface)
1431 return sprintf(buf, "%s", priv->prom_net_dev->name);
1432 else {
1433 buf[0] = '-';
1434 buf[1] = '1';
1435 buf[2] = '\0';
1436 return 3;
1437 }
1438 }
1439
1440 static DEVICE_ATTR(rtap_iface, S_IWUSR | S_IRUSR, show_rtap_iface,
1441 store_rtap_iface);
1442
1443 static ssize_t store_rtap_filter(struct device *d,
1444 struct device_attribute *attr,
1445 const char *buf, size_t count)
1446 {
1447 struct ipw_priv *priv = dev_get_drvdata(d);
1448
1449 if (!priv->prom_priv) {
1450 IPW_ERROR("Attempting to set filter without "
1451 "rtap_iface enabled.\n");
1452 return -EPERM;
1453 }
1454
1455 priv->prom_priv->filter = simple_strtol(buf, NULL, 0);
1456
1457 IPW_DEBUG_INFO("Setting rtap filter to " BIT_FMT16 "\n",
1458 BIT_ARG16(priv->prom_priv->filter));
1459
1460 return count;
1461 }
1462
1463 static ssize_t show_rtap_filter(struct device *d,
1464 struct device_attribute *attr,
1465 char *buf)
1466 {
1467 struct ipw_priv *priv = dev_get_drvdata(d);
1468 return sprintf(buf, "0x%04X",
1469 priv->prom_priv ? priv->prom_priv->filter : 0);
1470 }
1471
1472 static DEVICE_ATTR(rtap_filter, S_IWUSR | S_IRUSR, show_rtap_filter,
1473 store_rtap_filter);
1474 #endif
1475
1476 static ssize_t show_scan_age(struct device *d, struct device_attribute *attr,
1477 char *buf)
1478 {
1479 struct ipw_priv *priv = dev_get_drvdata(d);
1480 return sprintf(buf, "%d\n", priv->ieee->scan_age);
1481 }
1482
1483 static ssize_t store_scan_age(struct device *d, struct device_attribute *attr,
1484 const char *buf, size_t count)
1485 {
1486 struct ipw_priv *priv = dev_get_drvdata(d);
1487 struct net_device *dev = priv->net_dev;
1488 char buffer[] = "00000000";
1489 unsigned long len =
1490 (sizeof(buffer) - 1) > count ? count : sizeof(buffer) - 1;
1491 unsigned long val;
1492 char *p = buffer;
1493
1494 IPW_DEBUG_INFO("enter\n");
1495
1496 strncpy(buffer, buf, len);
1497 buffer[len] = 0;
1498
1499 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1500 p++;
1501 if (p[0] == 'x' || p[0] == 'X')
1502 p++;
1503 val = simple_strtoul(p, &p, 16);
1504 } else
1505 val = simple_strtoul(p, &p, 10);
1506 if (p == buffer) {
1507 IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name);
1508 } else {
1509 priv->ieee->scan_age = val;
1510 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age);
1511 }
1512
1513 IPW_DEBUG_INFO("exit\n");
1514 return len;
1515 }
1516
1517 static DEVICE_ATTR(scan_age, S_IWUSR | S_IRUGO, show_scan_age, store_scan_age);
1518
1519 static ssize_t show_led(struct device *d, struct device_attribute *attr,
1520 char *buf)
1521 {
1522 struct ipw_priv *priv = dev_get_drvdata(d);
1523 return sprintf(buf, "%d\n", (priv->config & CFG_NO_LED) ? 0 : 1);
1524 }
1525
1526 static ssize_t store_led(struct device *d, struct device_attribute *attr,
1527 const char *buf, size_t count)
1528 {
1529 struct ipw_priv *priv = dev_get_drvdata(d);
1530
1531 IPW_DEBUG_INFO("enter\n");
1532
1533 if (count == 0)
1534 return 0;
1535
1536 if (*buf == 0) {
1537 IPW_DEBUG_LED("Disabling LED control.\n");
1538 priv->config |= CFG_NO_LED;
1539 ipw_led_shutdown(priv);
1540 } else {
1541 IPW_DEBUG_LED("Enabling LED control.\n");
1542 priv->config &= ~CFG_NO_LED;
1543 ipw_led_init(priv);
1544 }
1545
1546 IPW_DEBUG_INFO("exit\n");
1547 return count;
1548 }
1549
1550 static DEVICE_ATTR(led, S_IWUSR | S_IRUGO, show_led, store_led);
1551
1552 static ssize_t show_status(struct device *d,
1553 struct device_attribute *attr, char *buf)
1554 {
1555 struct ipw_priv *p = dev_get_drvdata(d);
1556 return sprintf(buf, "0x%08x\n", (int)p->status);
1557 }
1558
1559 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
1560
1561 static ssize_t show_cfg(struct device *d, struct device_attribute *attr,
1562 char *buf)
1563 {
1564 struct ipw_priv *p = dev_get_drvdata(d);
1565 return sprintf(buf, "0x%08x\n", (int)p->config);
1566 }
1567
1568 static DEVICE_ATTR(cfg, S_IRUGO, show_cfg, NULL);
1569
1570 static ssize_t show_nic_type(struct device *d,
1571 struct device_attribute *attr, char *buf)
1572 {
1573 struct ipw_priv *priv = dev_get_drvdata(d);
1574 return sprintf(buf, "TYPE: %d\n", priv->nic_type);
1575 }
1576
1577 static DEVICE_ATTR(nic_type, S_IRUGO, show_nic_type, NULL);
1578
1579 static ssize_t show_ucode_version(struct device *d,
1580 struct device_attribute *attr, char *buf)
1581 {
1582 u32 len = sizeof(u32), tmp = 0;
1583 struct ipw_priv *p = dev_get_drvdata(d);
1584
1585 if (ipw_get_ordinal(p, IPW_ORD_STAT_UCODE_VERSION, &tmp, &len))
1586 return 0;
1587
1588 return sprintf(buf, "0x%08x\n", tmp);
1589 }
1590
1591 static DEVICE_ATTR(ucode_version, S_IWUSR | S_IRUGO, show_ucode_version, NULL);
1592
1593 static ssize_t show_rtc(struct device *d, struct device_attribute *attr,
1594 char *buf)
1595 {
1596 u32 len = sizeof(u32), tmp = 0;
1597 struct ipw_priv *p = dev_get_drvdata(d);
1598
1599 if (ipw_get_ordinal(p, IPW_ORD_STAT_RTC, &tmp, &len))
1600 return 0;
1601
1602 return sprintf(buf, "0x%08x\n", tmp);
1603 }
1604
1605 static DEVICE_ATTR(rtc, S_IWUSR | S_IRUGO, show_rtc, NULL);
1606
1607 /*
1608 * Add a device attribute to view/control the delay between eeprom
1609 * operations.
1610 */
1611 static ssize_t show_eeprom_delay(struct device *d,
1612 struct device_attribute *attr, char *buf)
1613 {
1614 struct ipw_priv *p = dev_get_drvdata(d);
1615 int n = p->eeprom_delay;
1616 return sprintf(buf, "%i\n", n);
1617 }
1618 static ssize_t store_eeprom_delay(struct device *d,
1619 struct device_attribute *attr,
1620 const char *buf, size_t count)
1621 {
1622 struct ipw_priv *p = dev_get_drvdata(d);
1623 sscanf(buf, "%i", &p->eeprom_delay);
1624 return strnlen(buf, count);
1625 }
1626
1627 static DEVICE_ATTR(eeprom_delay, S_IWUSR | S_IRUGO,
1628 show_eeprom_delay, store_eeprom_delay);
1629
1630 static ssize_t show_command_event_reg(struct device *d,
1631 struct device_attribute *attr, char *buf)
1632 {
1633 u32 reg = 0;
1634 struct ipw_priv *p = dev_get_drvdata(d);
1635
1636 reg = ipw_read_reg32(p, IPW_INTERNAL_CMD_EVENT);
1637 return sprintf(buf, "0x%08x\n", reg);
1638 }
1639 static ssize_t store_command_event_reg(struct device *d,
1640 struct device_attribute *attr,
1641 const char *buf, size_t count)
1642 {
1643 u32 reg;
1644 struct ipw_priv *p = dev_get_drvdata(d);
1645
1646 sscanf(buf, "%x", &reg);
1647 ipw_write_reg32(p, IPW_INTERNAL_CMD_EVENT, reg);
1648 return strnlen(buf, count);
1649 }
1650
1651 static DEVICE_ATTR(command_event_reg, S_IWUSR | S_IRUGO,
1652 show_command_event_reg, store_command_event_reg);
1653
1654 static ssize_t show_mem_gpio_reg(struct device *d,
1655 struct device_attribute *attr, char *buf)
1656 {
1657 u32 reg = 0;
1658 struct ipw_priv *p = dev_get_drvdata(d);
1659
1660 reg = ipw_read_reg32(p, 0x301100);
1661 return sprintf(buf, "0x%08x\n", reg);
1662 }
1663 static ssize_t store_mem_gpio_reg(struct device *d,
1664 struct device_attribute *attr,
1665 const char *buf, size_t count)
1666 {
1667 u32 reg;
1668 struct ipw_priv *p = dev_get_drvdata(d);
1669
1670 sscanf(buf, "%x", &reg);
1671 ipw_write_reg32(p, 0x301100, reg);
1672 return strnlen(buf, count);
1673 }
1674
1675 static DEVICE_ATTR(mem_gpio_reg, S_IWUSR | S_IRUGO,
1676 show_mem_gpio_reg, store_mem_gpio_reg);
1677
1678 static ssize_t show_indirect_dword(struct device *d,
1679 struct device_attribute *attr, char *buf)
1680 {
1681 u32 reg = 0;
1682 struct ipw_priv *priv = dev_get_drvdata(d);
1683
1684 if (priv->status & STATUS_INDIRECT_DWORD)
1685 reg = ipw_read_reg32(priv, priv->indirect_dword);
1686 else
1687 reg = 0;
1688
1689 return sprintf(buf, "0x%08x\n", reg);
1690 }
1691 static ssize_t store_indirect_dword(struct device *d,
1692 struct device_attribute *attr,
1693 const char *buf, size_t count)
1694 {
1695 struct ipw_priv *priv = dev_get_drvdata(d);
1696
1697 sscanf(buf, "%x", &priv->indirect_dword);
1698 priv->status |= STATUS_INDIRECT_DWORD;
1699 return strnlen(buf, count);
1700 }
1701
1702 static DEVICE_ATTR(indirect_dword, S_IWUSR | S_IRUGO,
1703 show_indirect_dword, store_indirect_dword);
1704
1705 static ssize_t show_indirect_byte(struct device *d,
1706 struct device_attribute *attr, char *buf)
1707 {
1708 u8 reg = 0;
1709 struct ipw_priv *priv = dev_get_drvdata(d);
1710
1711 if (priv->status & STATUS_INDIRECT_BYTE)
1712 reg = ipw_read_reg8(priv, priv->indirect_byte);
1713 else
1714 reg = 0;
1715
1716 return sprintf(buf, "0x%02x\n", reg);
1717 }
1718 static ssize_t store_indirect_byte(struct device *d,
1719 struct device_attribute *attr,
1720 const char *buf, size_t count)
1721 {
1722 struct ipw_priv *priv = dev_get_drvdata(d);
1723
1724 sscanf(buf, "%x", &priv->indirect_byte);
1725 priv->status |= STATUS_INDIRECT_BYTE;
1726 return strnlen(buf, count);
1727 }
1728
1729 static DEVICE_ATTR(indirect_byte, S_IWUSR | S_IRUGO,
1730 show_indirect_byte, store_indirect_byte);
1731
1732 static ssize_t show_direct_dword(struct device *d,
1733 struct device_attribute *attr, char *buf)
1734 {
1735 u32 reg = 0;
1736 struct ipw_priv *priv = dev_get_drvdata(d);
1737
1738 if (priv->status & STATUS_DIRECT_DWORD)
1739 reg = ipw_read32(priv, priv->direct_dword);
1740 else
1741 reg = 0;
1742
1743 return sprintf(buf, "0x%08x\n", reg);
1744 }
1745 static ssize_t store_direct_dword(struct device *d,
1746 struct device_attribute *attr,
1747 const char *buf, size_t count)
1748 {
1749 struct ipw_priv *priv = dev_get_drvdata(d);
1750
1751 sscanf(buf, "%x", &priv->direct_dword);
1752 priv->status |= STATUS_DIRECT_DWORD;
1753 return strnlen(buf, count);
1754 }
1755
1756 static DEVICE_ATTR(direct_dword, S_IWUSR | S_IRUGO,
1757 show_direct_dword, store_direct_dword);
1758
1759 static int rf_kill_active(struct ipw_priv *priv)
1760 {
1761 if (0 == (ipw_read32(priv, 0x30) & 0x10000)) {
1762 priv->status |= STATUS_RF_KILL_HW;
1763 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
1764 } else {
1765 priv->status &= ~STATUS_RF_KILL_HW;
1766 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false);
1767 }
1768
1769 return (priv->status & STATUS_RF_KILL_HW) ? 1 : 0;
1770 }
1771
1772 static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr,
1773 char *buf)
1774 {
1775 /* 0 - RF kill not enabled
1776 1 - SW based RF kill active (sysfs)
1777 2 - HW based RF kill active
1778 3 - Both HW and SW baed RF kill active */
1779 struct ipw_priv *priv = dev_get_drvdata(d);
1780 int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
1781 (rf_kill_active(priv) ? 0x2 : 0x0);
1782 return sprintf(buf, "%i\n", val);
1783 }
1784
1785 static int ipw_radio_kill_sw(struct ipw_priv *priv, int disable_radio)
1786 {
1787 if ((disable_radio ? 1 : 0) ==
1788 ((priv->status & STATUS_RF_KILL_SW) ? 1 : 0))
1789 return 0;
1790
1791 IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n",
1792 disable_radio ? "OFF" : "ON");
1793
1794 if (disable_radio) {
1795 priv->status |= STATUS_RF_KILL_SW;
1796
1797 if (priv->workqueue) {
1798 cancel_delayed_work(&priv->request_scan);
1799 cancel_delayed_work(&priv->request_direct_scan);
1800 cancel_delayed_work(&priv->request_passive_scan);
1801 cancel_delayed_work(&priv->scan_event);
1802 }
1803 queue_work(priv->workqueue, &priv->down);
1804 } else {
1805 priv->status &= ~STATUS_RF_KILL_SW;
1806 if (rf_kill_active(priv)) {
1807 IPW_DEBUG_RF_KILL("Can not turn radio back on - "
1808 "disabled by HW switch\n");
1809 /* Make sure the RF_KILL check timer is running */
1810 cancel_delayed_work(&priv->rf_kill);
1811 queue_delayed_work(priv->workqueue, &priv->rf_kill,
1812 round_jiffies_relative(2 * HZ));
1813 } else
1814 queue_work(priv->workqueue, &priv->up);
1815 }
1816
1817 return 1;
1818 }
1819
1820 static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr,
1821 const char *buf, size_t count)
1822 {
1823 struct ipw_priv *priv = dev_get_drvdata(d);
1824
1825 ipw_radio_kill_sw(priv, buf[0] == '1');
1826
1827 return count;
1828 }
1829
1830 static DEVICE_ATTR(rf_kill, S_IWUSR | S_IRUGO, show_rf_kill, store_rf_kill);
1831
1832 static ssize_t show_speed_scan(struct device *d, struct device_attribute *attr,
1833 char *buf)
1834 {
1835 struct ipw_priv *priv = dev_get_drvdata(d);
1836 int pos = 0, len = 0;
1837 if (priv->config & CFG_SPEED_SCAN) {
1838 while (priv->speed_scan[pos] != 0)
1839 len += sprintf(&buf[len], "%d ",
1840 priv->speed_scan[pos++]);
1841 return len + sprintf(&buf[len], "\n");
1842 }
1843
1844 return sprintf(buf, "0\n");
1845 }
1846
1847 static ssize_t store_speed_scan(struct device *d, struct device_attribute *attr,
1848 const char *buf, size_t count)
1849 {
1850 struct ipw_priv *priv = dev_get_drvdata(d);
1851 int channel, pos = 0;
1852 const char *p = buf;
1853
1854 /* list of space separated channels to scan, optionally ending with 0 */
1855 while ((channel = simple_strtol(p, NULL, 0))) {
1856 if (pos == MAX_SPEED_SCAN - 1) {
1857 priv->speed_scan[pos] = 0;
1858 break;
1859 }
1860
1861 if (libipw_is_valid_channel(priv->ieee, channel))
1862 priv->speed_scan[pos++] = channel;
1863 else
1864 IPW_WARNING("Skipping invalid channel request: %d\n",
1865 channel);
1866 p = strchr(p, ' ');
1867 if (!p)
1868 break;
1869 while (*p == ' ' || *p == '\t')
1870 p++;
1871 }
1872
1873 if (pos == 0)
1874 priv->config &= ~CFG_SPEED_SCAN;
1875 else {
1876 priv->speed_scan_pos = 0;
1877 priv->config |= CFG_SPEED_SCAN;
1878 }
1879
1880 return count;
1881 }
1882
1883 static DEVICE_ATTR(speed_scan, S_IWUSR | S_IRUGO, show_speed_scan,
1884 store_speed_scan);
1885
1886 static ssize_t show_net_stats(struct device *d, struct device_attribute *attr,
1887 char *buf)
1888 {
1889 struct ipw_priv *priv = dev_get_drvdata(d);
1890 return sprintf(buf, "%c\n", (priv->config & CFG_NET_STATS) ? '1' : '0');
1891 }
1892
1893 static ssize_t store_net_stats(struct device *d, struct device_attribute *attr,
1894 const char *buf, size_t count)
1895 {
1896 struct ipw_priv *priv = dev_get_drvdata(d);
1897 if (buf[0] == '1')
1898 priv->config |= CFG_NET_STATS;
1899 else
1900 priv->config &= ~CFG_NET_STATS;
1901
1902 return count;
1903 }
1904
1905 static DEVICE_ATTR(net_stats, S_IWUSR | S_IRUGO,
1906 show_net_stats, store_net_stats);
1907
1908 static ssize_t show_channels(struct device *d,
1909 struct device_attribute *attr,
1910 char *buf)
1911 {
1912 struct ipw_priv *priv = dev_get_drvdata(d);
1913 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
1914 int len = 0, i;
1915
1916 len = sprintf(&buf[len],
1917 "Displaying %d channels in 2.4Ghz band "
1918 "(802.11bg):\n", geo->bg_channels);
1919
1920 for (i = 0; i < geo->bg_channels; i++) {
1921 len += sprintf(&buf[len], "%d: BSS%s%s, %s, Band %s.\n",
1922 geo->bg[i].channel,
1923 geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT ?
1924 " (radar spectrum)" : "",
1925 ((geo->bg[i].flags & LIBIPW_CH_NO_IBSS) ||
1926 (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT))
1927 ? "" : ", IBSS",
1928 geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY ?
1929 "passive only" : "active/passive",
1930 geo->bg[i].flags & LIBIPW_CH_B_ONLY ?
1931 "B" : "B/G");
1932 }
1933
1934 len += sprintf(&buf[len],
1935 "Displaying %d channels in 5.2Ghz band "
1936 "(802.11a):\n", geo->a_channels);
1937 for (i = 0; i < geo->a_channels; i++) {
1938 len += sprintf(&buf[len], "%d: BSS%s%s, %s.\n",
1939 geo->a[i].channel,
1940 geo->a[i].flags & LIBIPW_CH_RADAR_DETECT ?
1941 " (radar spectrum)" : "",
1942 ((geo->a[i].flags & LIBIPW_CH_NO_IBSS) ||
1943 (geo->a[i].flags & LIBIPW_CH_RADAR_DETECT))
1944 ? "" : ", IBSS",
1945 geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY ?
1946 "passive only" : "active/passive");
1947 }
1948
1949 return len;
1950 }
1951
1952 static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
1953
1954 static void notify_wx_assoc_event(struct ipw_priv *priv)
1955 {
1956 union iwreq_data wrqu;
1957 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1958 if (priv->status & STATUS_ASSOCIATED)
1959 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
1960 else
1961 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
1962 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1963 }
1964
1965 static void ipw_irq_tasklet(struct ipw_priv *priv)
1966 {
1967 u32 inta, inta_mask, handled = 0;
1968 unsigned long flags;
1969 int rc = 0;
1970
1971 spin_lock_irqsave(&priv->irq_lock, flags);
1972
1973 inta = ipw_read32(priv, IPW_INTA_RW);
1974 inta_mask = ipw_read32(priv, IPW_INTA_MASK_R);
1975 inta &= (IPW_INTA_MASK_ALL & inta_mask);
1976
1977 /* Add any cached INTA values that need to be handled */
1978 inta |= priv->isr_inta;
1979
1980 spin_unlock_irqrestore(&priv->irq_lock, flags);
1981
1982 spin_lock_irqsave(&priv->lock, flags);
1983
1984 /* handle all the justifications for the interrupt */
1985 if (inta & IPW_INTA_BIT_RX_TRANSFER) {
1986 ipw_rx(priv);
1987 handled |= IPW_INTA_BIT_RX_TRANSFER;
1988 }
1989
1990 if (inta & IPW_INTA_BIT_TX_CMD_QUEUE) {
1991 IPW_DEBUG_HC("Command completed.\n");
1992 rc = ipw_queue_tx_reclaim(priv, &priv->txq_cmd, -1);
1993 priv->status &= ~STATUS_HCMD_ACTIVE;
1994 wake_up_interruptible(&priv->wait_command_queue);
1995 handled |= IPW_INTA_BIT_TX_CMD_QUEUE;
1996 }
1997
1998 if (inta & IPW_INTA_BIT_TX_QUEUE_1) {
1999 IPW_DEBUG_TX("TX_QUEUE_1\n");
2000 rc = ipw_queue_tx_reclaim(priv, &priv->txq[0], 0);
2001 handled |= IPW_INTA_BIT_TX_QUEUE_1;
2002 }
2003
2004 if (inta & IPW_INTA_BIT_TX_QUEUE_2) {
2005 IPW_DEBUG_TX("TX_QUEUE_2\n");
2006 rc = ipw_queue_tx_reclaim(priv, &priv->txq[1], 1);
2007 handled |= IPW_INTA_BIT_TX_QUEUE_2;
2008 }
2009
2010 if (inta & IPW_INTA_BIT_TX_QUEUE_3) {
2011 IPW_DEBUG_TX("TX_QUEUE_3\n");
2012 rc = ipw_queue_tx_reclaim(priv, &priv->txq[2], 2);
2013 handled |= IPW_INTA_BIT_TX_QUEUE_3;
2014 }
2015
2016 if (inta & IPW_INTA_BIT_TX_QUEUE_4) {
2017 IPW_DEBUG_TX("TX_QUEUE_4\n");
2018 rc = ipw_queue_tx_reclaim(priv, &priv->txq[3], 3);
2019 handled |= IPW_INTA_BIT_TX_QUEUE_4;
2020 }
2021
2022 if (inta & IPW_INTA_BIT_STATUS_CHANGE) {
2023 IPW_WARNING("STATUS_CHANGE\n");
2024 handled |= IPW_INTA_BIT_STATUS_CHANGE;
2025 }
2026
2027 if (inta & IPW_INTA_BIT_BEACON_PERIOD_EXPIRED) {
2028 IPW_WARNING("TX_PERIOD_EXPIRED\n");
2029 handled |= IPW_INTA_BIT_BEACON_PERIOD_EXPIRED;
2030 }
2031
2032 if (inta & IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE) {
2033 IPW_WARNING("HOST_CMD_DONE\n");
2034 handled |= IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE;
2035 }
2036
2037 if (inta & IPW_INTA_BIT_FW_INITIALIZATION_DONE) {
2038 IPW_WARNING("FW_INITIALIZATION_DONE\n");
2039 handled |= IPW_INTA_BIT_FW_INITIALIZATION_DONE;
2040 }
2041
2042 if (inta & IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE) {
2043 IPW_WARNING("PHY_OFF_DONE\n");
2044 handled |= IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE;
2045 }
2046
2047 if (inta & IPW_INTA_BIT_RF_KILL_DONE) {
2048 IPW_DEBUG_RF_KILL("RF_KILL_DONE\n");
2049 priv->status |= STATUS_RF_KILL_HW;
2050 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
2051 wake_up_interruptible(&priv->wait_command_queue);
2052 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
2053 cancel_delayed_work(&priv->request_scan);
2054 cancel_delayed_work(&priv->request_direct_scan);
2055 cancel_delayed_work(&priv->request_passive_scan);
2056 cancel_delayed_work(&priv->scan_event);
2057 schedule_work(&priv->link_down);
2058 queue_delayed_work(priv->workqueue, &priv->rf_kill, 2 * HZ);
2059 handled |= IPW_INTA_BIT_RF_KILL_DONE;
2060 }
2061
2062 if (inta & IPW_INTA_BIT_FATAL_ERROR) {
2063 IPW_WARNING("Firmware error detected. Restarting.\n");
2064 if (priv->error) {
2065 IPW_DEBUG_FW("Sysfs 'error' log already exists.\n");
2066 if (ipw_debug_level & IPW_DL_FW_ERRORS) {
2067 struct ipw_fw_error *error =
2068 ipw_alloc_error_log(priv);
2069 ipw_dump_error_log(priv, error);
2070 kfree(error);
2071 }
2072 } else {
2073 priv->error = ipw_alloc_error_log(priv);
2074 if (priv->error)
2075 IPW_DEBUG_FW("Sysfs 'error' log captured.\n");
2076 else
2077 IPW_DEBUG_FW("Error allocating sysfs 'error' "
2078 "log.\n");
2079 if (ipw_debug_level & IPW_DL_FW_ERRORS)
2080 ipw_dump_error_log(priv, priv->error);
2081 }
2082
2083 /* XXX: If hardware encryption is for WPA/WPA2,
2084 * we have to notify the supplicant. */
2085 if (priv->ieee->sec.encrypt) {
2086 priv->status &= ~STATUS_ASSOCIATED;
2087 notify_wx_assoc_event(priv);
2088 }
2089
2090 /* Keep the restart process from trying to send host
2091 * commands by clearing the INIT status bit */
2092 priv->status &= ~STATUS_INIT;
2093
2094 /* Cancel currently queued command. */
2095 priv->status &= ~STATUS_HCMD_ACTIVE;
2096 wake_up_interruptible(&priv->wait_command_queue);
2097
2098 queue_work(priv->workqueue, &priv->adapter_restart);
2099 handled |= IPW_INTA_BIT_FATAL_ERROR;
2100 }
2101
2102 if (inta & IPW_INTA_BIT_PARITY_ERROR) {
2103 IPW_ERROR("Parity error\n");
2104 handled |= IPW_INTA_BIT_PARITY_ERROR;
2105 }
2106
2107 if (handled != inta) {
2108 IPW_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
2109 }
2110
2111 spin_unlock_irqrestore(&priv->lock, flags);
2112
2113 /* enable all interrupts */
2114 ipw_enable_interrupts(priv);
2115 }
2116
2117 #define IPW_CMD(x) case IPW_CMD_ ## x : return #x
2118 static char *get_cmd_string(u8 cmd)
2119 {
2120 switch (cmd) {
2121 IPW_CMD(HOST_COMPLETE);
2122 IPW_CMD(POWER_DOWN);
2123 IPW_CMD(SYSTEM_CONFIG);
2124 IPW_CMD(MULTICAST_ADDRESS);
2125 IPW_CMD(SSID);
2126 IPW_CMD(ADAPTER_ADDRESS);
2127 IPW_CMD(PORT_TYPE);
2128 IPW_CMD(RTS_THRESHOLD);
2129 IPW_CMD(FRAG_THRESHOLD);
2130 IPW_CMD(POWER_MODE);
2131 IPW_CMD(WEP_KEY);
2132 IPW_CMD(TGI_TX_KEY);
2133 IPW_CMD(SCAN_REQUEST);
2134 IPW_CMD(SCAN_REQUEST_EXT);
2135 IPW_CMD(ASSOCIATE);
2136 IPW_CMD(SUPPORTED_RATES);
2137 IPW_CMD(SCAN_ABORT);
2138 IPW_CMD(TX_FLUSH);
2139 IPW_CMD(QOS_PARAMETERS);
2140 IPW_CMD(DINO_CONFIG);
2141 IPW_CMD(RSN_CAPABILITIES);
2142 IPW_CMD(RX_KEY);
2143 IPW_CMD(CARD_DISABLE);
2144 IPW_CMD(SEED_NUMBER);
2145 IPW_CMD(TX_POWER);
2146 IPW_CMD(COUNTRY_INFO);
2147 IPW_CMD(AIRONET_INFO);
2148 IPW_CMD(AP_TX_POWER);
2149 IPW_CMD(CCKM_INFO);
2150 IPW_CMD(CCX_VER_INFO);
2151 IPW_CMD(SET_CALIBRATION);
2152 IPW_CMD(SENSITIVITY_CALIB);
2153 IPW_CMD(RETRY_LIMIT);
2154 IPW_CMD(IPW_PRE_POWER_DOWN);
2155 IPW_CMD(VAP_BEACON_TEMPLATE);
2156 IPW_CMD(VAP_DTIM_PERIOD);
2157 IPW_CMD(EXT_SUPPORTED_RATES);
2158 IPW_CMD(VAP_LOCAL_TX_PWR_CONSTRAINT);
2159 IPW_CMD(VAP_QUIET_INTERVALS);
2160 IPW_CMD(VAP_CHANNEL_SWITCH);
2161 IPW_CMD(VAP_MANDATORY_CHANNELS);
2162 IPW_CMD(VAP_CELL_PWR_LIMIT);
2163 IPW_CMD(VAP_CF_PARAM_SET);
2164 IPW_CMD(VAP_SET_BEACONING_STATE);
2165 IPW_CMD(MEASUREMENT);
2166 IPW_CMD(POWER_CAPABILITY);
2167 IPW_CMD(SUPPORTED_CHANNELS);
2168 IPW_CMD(TPC_REPORT);
2169 IPW_CMD(WME_INFO);
2170 IPW_CMD(PRODUCTION_COMMAND);
2171 default:
2172 return "UNKNOWN";
2173 }
2174 }
2175
2176 #define HOST_COMPLETE_TIMEOUT HZ
2177
2178 static int __ipw_send_cmd(struct ipw_priv *priv, struct host_cmd *cmd)
2179 {
2180 int rc = 0;
2181 unsigned long flags;
2182
2183 spin_lock_irqsave(&priv->lock, flags);
2184 if (priv->status & STATUS_HCMD_ACTIVE) {
2185 IPW_ERROR("Failed to send %s: Already sending a command.\n",
2186 get_cmd_string(cmd->cmd));
2187 spin_unlock_irqrestore(&priv->lock, flags);
2188 return -EAGAIN;
2189 }
2190
2191 priv->status |= STATUS_HCMD_ACTIVE;
2192
2193 if (priv->cmdlog) {
2194 priv->cmdlog[priv->cmdlog_pos].jiffies = jiffies;
2195 priv->cmdlog[priv->cmdlog_pos].cmd.cmd = cmd->cmd;
2196 priv->cmdlog[priv->cmdlog_pos].cmd.len = cmd->len;
2197 memcpy(priv->cmdlog[priv->cmdlog_pos].cmd.param, cmd->param,
2198 cmd->len);
2199 priv->cmdlog[priv->cmdlog_pos].retcode = -1;
2200 }
2201
2202 IPW_DEBUG_HC("%s command (#%d) %d bytes: 0x%08X\n",
2203 get_cmd_string(cmd->cmd), cmd->cmd, cmd->len,
2204 priv->status);
2205
2206 #ifndef DEBUG_CMD_WEP_KEY
2207 if (cmd->cmd == IPW_CMD_WEP_KEY)
2208 IPW_DEBUG_HC("WEP_KEY command masked out for secure.\n");
2209 else
2210 #endif
2211 printk_buf(IPW_DL_HOST_COMMAND, (u8 *) cmd->param, cmd->len);
2212
2213 rc = ipw_queue_tx_hcmd(priv, cmd->cmd, cmd->param, cmd->len, 0);
2214 if (rc) {
2215 priv->status &= ~STATUS_HCMD_ACTIVE;
2216 IPW_ERROR("Failed to send %s: Reason %d\n",
2217 get_cmd_string(cmd->cmd), rc);
2218 spin_unlock_irqrestore(&priv->lock, flags);
2219 goto exit;
2220 }
2221 spin_unlock_irqrestore(&priv->lock, flags);
2222
2223 rc = wait_event_interruptible_timeout(priv->wait_command_queue,
2224 !(priv->
2225 status & STATUS_HCMD_ACTIVE),
2226 HOST_COMPLETE_TIMEOUT);
2227 if (rc == 0) {
2228 spin_lock_irqsave(&priv->lock, flags);
2229 if (priv->status & STATUS_HCMD_ACTIVE) {
2230 IPW_ERROR("Failed to send %s: Command timed out.\n",
2231 get_cmd_string(cmd->cmd));
2232 priv->status &= ~STATUS_HCMD_ACTIVE;
2233 spin_unlock_irqrestore(&priv->lock, flags);
2234 rc = -EIO;
2235 goto exit;
2236 }
2237 spin_unlock_irqrestore(&priv->lock, flags);
2238 } else
2239 rc = 0;
2240
2241 if (priv->status & STATUS_RF_KILL_HW) {
2242 IPW_ERROR("Failed to send %s: Aborted due to RF kill switch.\n",
2243 get_cmd_string(cmd->cmd));
2244 rc = -EIO;
2245 goto exit;
2246 }
2247
2248 exit:
2249 if (priv->cmdlog) {
2250 priv->cmdlog[priv->cmdlog_pos++].retcode = rc;
2251 priv->cmdlog_pos %= priv->cmdlog_len;
2252 }
2253 return rc;
2254 }
2255
2256 static int ipw_send_cmd_simple(struct ipw_priv *priv, u8 command)
2257 {
2258 struct host_cmd cmd = {
2259 .cmd = command,
2260 };
2261
2262 return __ipw_send_cmd(priv, &cmd);
2263 }
2264
2265 static int ipw_send_cmd_pdu(struct ipw_priv *priv, u8 command, u8 len,
2266 void *data)
2267 {
2268 struct host_cmd cmd = {
2269 .cmd = command,
2270 .len = len,
2271 .param = data,
2272 };
2273
2274 return __ipw_send_cmd(priv, &cmd);
2275 }
2276
2277 static int ipw_send_host_complete(struct ipw_priv *priv)
2278 {
2279 if (!priv) {
2280 IPW_ERROR("Invalid args\n");
2281 return -1;
2282 }
2283
2284 return ipw_send_cmd_simple(priv, IPW_CMD_HOST_COMPLETE);
2285 }
2286
2287 static int ipw_send_system_config(struct ipw_priv *priv)
2288 {
2289 return ipw_send_cmd_pdu(priv, IPW_CMD_SYSTEM_CONFIG,
2290 sizeof(priv->sys_config),
2291 &priv->sys_config);
2292 }
2293
2294 static int ipw_send_ssid(struct ipw_priv *priv, u8 * ssid, int len)
2295 {
2296 if (!priv || !ssid) {
2297 IPW_ERROR("Invalid args\n");
2298 return -1;
2299 }
2300
2301 return ipw_send_cmd_pdu(priv, IPW_CMD_SSID, min(len, IW_ESSID_MAX_SIZE),
2302 ssid);
2303 }
2304
2305 static int ipw_send_adapter_address(struct ipw_priv *priv, u8 * mac)
2306 {
2307 if (!priv || !mac) {
2308 IPW_ERROR("Invalid args\n");
2309 return -1;
2310 }
2311
2312 IPW_DEBUG_INFO("%s: Setting MAC to %pM\n",
2313 priv->net_dev->name, mac);
2314
2315 return ipw_send_cmd_pdu(priv, IPW_CMD_ADAPTER_ADDRESS, ETH_ALEN, mac);
2316 }
2317
2318 /*
2319 * NOTE: This must be executed from our workqueue as it results in udelay
2320 * being called which may corrupt the keyboard if executed on default
2321 * workqueue
2322 */
2323 static void ipw_adapter_restart(void *adapter)
2324 {
2325 struct ipw_priv *priv = adapter;
2326
2327 if (priv->status & STATUS_RF_KILL_MASK)
2328 return;
2329
2330 ipw_down(priv);
2331
2332 if (priv->assoc_network &&
2333 (priv->assoc_network->capability & WLAN_CAPABILITY_IBSS))
2334 ipw_remove_current_network(priv);
2335
2336 if (ipw_up(priv)) {
2337 IPW_ERROR("Failed to up device\n");
2338 return;
2339 }
2340 }
2341
2342 static void ipw_bg_adapter_restart(struct work_struct *work)
2343 {
2344 struct ipw_priv *priv =
2345 container_of(work, struct ipw_priv, adapter_restart);
2346 mutex_lock(&priv->mutex);
2347 ipw_adapter_restart(priv);
2348 mutex_unlock(&priv->mutex);
2349 }
2350
2351 #define IPW_SCAN_CHECK_WATCHDOG (5 * HZ)
2352
2353 static void ipw_scan_check(void *data)
2354 {
2355 struct ipw_priv *priv = data;
2356 if (priv->status & (STATUS_SCANNING | STATUS_SCAN_ABORTING)) {
2357 IPW_DEBUG_SCAN("Scan completion watchdog resetting "
2358 "adapter after (%dms).\n",
2359 jiffies_to_msecs(IPW_SCAN_CHECK_WATCHDOG));
2360 queue_work(priv->workqueue, &priv->adapter_restart);
2361 }
2362 }
2363
2364 static void ipw_bg_scan_check(struct work_struct *work)
2365 {
2366 struct ipw_priv *priv =
2367 container_of(work, struct ipw_priv, scan_check.work);
2368 mutex_lock(&priv->mutex);
2369 ipw_scan_check(priv);
2370 mutex_unlock(&priv->mutex);
2371 }
2372
2373 static int ipw_send_scan_request_ext(struct ipw_priv *priv,
2374 struct ipw_scan_request_ext *request)
2375 {
2376 return ipw_send_cmd_pdu(priv, IPW_CMD_SCAN_REQUEST_EXT,
2377 sizeof(*request), request);
2378 }
2379
2380 static int ipw_send_scan_abort(struct ipw_priv *priv)
2381 {
2382 if (!priv) {
2383 IPW_ERROR("Invalid args\n");
2384 return -1;
2385 }
2386
2387 return ipw_send_cmd_simple(priv, IPW_CMD_SCAN_ABORT);
2388 }
2389
2390 static int ipw_set_sensitivity(struct ipw_priv *priv, u16 sens)
2391 {
2392 struct ipw_sensitivity_calib calib = {
2393 .beacon_rssi_raw = cpu_to_le16(sens),
2394 };
2395
2396 return ipw_send_cmd_pdu(priv, IPW_CMD_SENSITIVITY_CALIB, sizeof(calib),
2397 &calib);
2398 }
2399
2400 static int ipw_send_associate(struct ipw_priv *priv,
2401 struct ipw_associate *associate)
2402 {
2403 if (!priv || !associate) {
2404 IPW_ERROR("Invalid args\n");
2405 return -1;
2406 }
2407
2408 return ipw_send_cmd_pdu(priv, IPW_CMD_ASSOCIATE, sizeof(*associate),
2409 associate);
2410 }
2411
2412 static int ipw_send_supported_rates(struct ipw_priv *priv,
2413 struct ipw_supported_rates *rates)
2414 {
2415 if (!priv || !rates) {
2416 IPW_ERROR("Invalid args\n");
2417 return -1;
2418 }
2419
2420 return ipw_send_cmd_pdu(priv, IPW_CMD_SUPPORTED_RATES, sizeof(*rates),
2421 rates);
2422 }
2423
2424 static int ipw_set_random_seed(struct ipw_priv *priv)
2425 {
2426 u32 val;
2427
2428 if (!priv) {
2429 IPW_ERROR("Invalid args\n");
2430 return -1;
2431 }
2432
2433 get_random_bytes(&val, sizeof(val));
2434
2435 return ipw_send_cmd_pdu(priv, IPW_CMD_SEED_NUMBER, sizeof(val), &val);
2436 }
2437
2438 static int ipw_send_card_disable(struct ipw_priv *priv, u32 phy_off)
2439 {
2440 __le32 v = cpu_to_le32(phy_off);
2441 if (!priv) {
2442 IPW_ERROR("Invalid args\n");
2443 return -1;
2444 }
2445
2446 return ipw_send_cmd_pdu(priv, IPW_CMD_CARD_DISABLE, sizeof(v), &v);
2447 }
2448
2449 static int ipw_send_tx_power(struct ipw_priv *priv, struct ipw_tx_power *power)
2450 {
2451 if (!priv || !power) {
2452 IPW_ERROR("Invalid args\n");
2453 return -1;
2454 }
2455
2456 return ipw_send_cmd_pdu(priv, IPW_CMD_TX_POWER, sizeof(*power), power);
2457 }
2458
2459 static int ipw_set_tx_power(struct ipw_priv *priv)
2460 {
2461 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
2462 struct ipw_tx_power tx_power;
2463 s8 max_power;
2464 int i;
2465
2466 memset(&tx_power, 0, sizeof(tx_power));
2467
2468 /* configure device for 'G' band */
2469 tx_power.ieee_mode = IPW_G_MODE;
2470 tx_power.num_channels = geo->bg_channels;
2471 for (i = 0; i < geo->bg_channels; i++) {
2472 max_power = geo->bg[i].max_power;
2473 tx_power.channels_tx_power[i].channel_number =
2474 geo->bg[i].channel;
2475 tx_power.channels_tx_power[i].tx_power = max_power ?
2476 min(max_power, priv->tx_power) : priv->tx_power;
2477 }
2478 if (ipw_send_tx_power(priv, &tx_power))
2479 return -EIO;
2480
2481 /* configure device to also handle 'B' band */
2482 tx_power.ieee_mode = IPW_B_MODE;
2483 if (ipw_send_tx_power(priv, &tx_power))
2484 return -EIO;
2485
2486 /* configure device to also handle 'A' band */
2487 if (priv->ieee->abg_true) {
2488 tx_power.ieee_mode = IPW_A_MODE;
2489 tx_power.num_channels = geo->a_channels;
2490 for (i = 0; i < tx_power.num_channels; i++) {
2491 max_power = geo->a[i].max_power;
2492 tx_power.channels_tx_power[i].channel_number =
2493 geo->a[i].channel;
2494 tx_power.channels_tx_power[i].tx_power = max_power ?
2495 min(max_power, priv->tx_power) : priv->tx_power;
2496 }
2497 if (ipw_send_tx_power(priv, &tx_power))
2498 return -EIO;
2499 }
2500 return 0;
2501 }
2502
2503 static int ipw_send_rts_threshold(struct ipw_priv *priv, u16 rts)
2504 {
2505 struct ipw_rts_threshold rts_threshold = {
2506 .rts_threshold = cpu_to_le16(rts),
2507 };
2508
2509 if (!priv) {
2510 IPW_ERROR("Invalid args\n");
2511 return -1;
2512 }
2513
2514 return ipw_send_cmd_pdu(priv, IPW_CMD_RTS_THRESHOLD,
2515 sizeof(rts_threshold), &rts_threshold);
2516 }
2517
2518 static int ipw_send_frag_threshold(struct ipw_priv *priv, u16 frag)
2519 {
2520 struct ipw_frag_threshold frag_threshold = {
2521 .frag_threshold = cpu_to_le16(frag),
2522 };
2523
2524 if (!priv) {
2525 IPW_ERROR("Invalid args\n");
2526 return -1;
2527 }
2528
2529 return ipw_send_cmd_pdu(priv, IPW_CMD_FRAG_THRESHOLD,
2530 sizeof(frag_threshold), &frag_threshold);
2531 }
2532
2533 static int ipw_send_power_mode(struct ipw_priv *priv, u32 mode)
2534 {
2535 __le32 param;
2536
2537 if (!priv) {
2538 IPW_ERROR("Invalid args\n");
2539 return -1;
2540 }
2541
2542 /* If on battery, set to 3, if AC set to CAM, else user
2543 * level */
2544 switch (mode) {
2545 case IPW_POWER_BATTERY:
2546 param = cpu_to_le32(IPW_POWER_INDEX_3);
2547 break;
2548 case IPW_POWER_AC:
2549 param = cpu_to_le32(IPW_POWER_MODE_CAM);
2550 break;
2551 default:
2552 param = cpu_to_le32(mode);
2553 break;
2554 }
2555
2556 return ipw_send_cmd_pdu(priv, IPW_CMD_POWER_MODE, sizeof(param),
2557 &param);
2558 }
2559
2560 static int ipw_send_retry_limit(struct ipw_priv *priv, u8 slimit, u8 llimit)
2561 {
2562 struct ipw_retry_limit retry_limit = {
2563 .short_retry_limit = slimit,
2564 .long_retry_limit = llimit
2565 };
2566
2567 if (!priv) {
2568 IPW_ERROR("Invalid args\n");
2569 return -1;
2570 }
2571
2572 return ipw_send_cmd_pdu(priv, IPW_CMD_RETRY_LIMIT, sizeof(retry_limit),
2573 &retry_limit);
2574 }
2575
2576 /*
2577 * The IPW device contains a Microwire compatible EEPROM that stores
2578 * various data like the MAC address. Usually the firmware has exclusive
2579 * access to the eeprom, but during device initialization (before the
2580 * device driver has sent the HostComplete command to the firmware) the
2581 * device driver has read access to the EEPROM by way of indirect addressing
2582 * through a couple of memory mapped registers.
2583 *
2584 * The following is a simplified implementation for pulling data out of the
2585 * the eeprom, along with some helper functions to find information in
2586 * the per device private data's copy of the eeprom.
2587 *
2588 * NOTE: To better understand how these functions work (i.e what is a chip
2589 * select and why do have to keep driving the eeprom clock?), read
2590 * just about any data sheet for a Microwire compatible EEPROM.
2591 */
2592
2593 /* write a 32 bit value into the indirect accessor register */
2594 static inline void eeprom_write_reg(struct ipw_priv *p, u32 data)
2595 {
2596 ipw_write_reg32(p, FW_MEM_REG_EEPROM_ACCESS, data);
2597
2598 /* the eeprom requires some time to complete the operation */
2599 udelay(p->eeprom_delay);
2600
2601 return;
2602 }
2603
2604 /* perform a chip select operation */
2605 static void eeprom_cs(struct ipw_priv *priv)
2606 {
2607 eeprom_write_reg(priv, 0);
2608 eeprom_write_reg(priv, EEPROM_BIT_CS);
2609 eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK);
2610 eeprom_write_reg(priv, EEPROM_BIT_CS);
2611 }
2612
2613 /* perform a chip select operation */
2614 static void eeprom_disable_cs(struct ipw_priv *priv)
2615 {
2616 eeprom_write_reg(priv, EEPROM_BIT_CS);
2617 eeprom_write_reg(priv, 0);
2618 eeprom_write_reg(priv, EEPROM_BIT_SK);
2619 }
2620
2621 /* push a single bit down to the eeprom */
2622 static inline void eeprom_write_bit(struct ipw_priv *p, u8 bit)
2623 {
2624 int d = (bit ? EEPROM_BIT_DI : 0);
2625 eeprom_write_reg(p, EEPROM_BIT_CS | d);
2626 eeprom_write_reg(p, EEPROM_BIT_CS | d | EEPROM_BIT_SK);
2627 }
2628
2629 /* push an opcode followed by an address down to the eeprom */
2630 static void eeprom_op(struct ipw_priv *priv, u8 op, u8 addr)
2631 {
2632 int i;
2633
2634 eeprom_cs(priv);
2635 eeprom_write_bit(priv, 1);
2636 eeprom_write_bit(priv, op & 2);
2637 eeprom_write_bit(priv, op & 1);
2638 for (i = 7; i >= 0; i--) {
2639 eeprom_write_bit(priv, addr & (1 << i));
2640 }
2641 }
2642
2643 /* pull 16 bits off the eeprom, one bit at a time */
2644 static u16 eeprom_read_u16(struct ipw_priv *priv, u8 addr)
2645 {
2646 int i;
2647 u16 r = 0;
2648
2649 /* Send READ Opcode */
2650 eeprom_op(priv, EEPROM_CMD_READ, addr);
2651
2652 /* Send dummy bit */
2653 eeprom_write_reg(priv, EEPROM_BIT_CS);
2654
2655 /* Read the byte off the eeprom one bit at a time */
2656 for (i = 0; i < 16; i++) {
2657 u32 data = 0;
2658 eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK);
2659 eeprom_write_reg(priv, EEPROM_BIT_CS);
2660 data = ipw_read_reg32(priv, FW_MEM_REG_EEPROM_ACCESS);
2661 r = (r << 1) | ((data & EEPROM_BIT_DO) ? 1 : 0);
2662 }
2663
2664 /* Send another dummy bit */
2665 eeprom_write_reg(priv, 0);
2666 eeprom_disable_cs(priv);
2667
2668 return r;
2669 }
2670
2671 /* helper function for pulling the mac address out of the private */
2672 /* data's copy of the eeprom data */
2673 static void eeprom_parse_mac(struct ipw_priv *priv, u8 * mac)
2674 {
2675 memcpy(mac, &priv->eeprom[EEPROM_MAC_ADDRESS], 6);
2676 }
2677
2678 /*
2679 * Either the device driver (i.e. the host) or the firmware can
2680 * load eeprom data into the designated region in SRAM. If neither
2681 * happens then the FW will shutdown with a fatal error.
2682 *
2683 * In order to signal the FW to load the EEPROM, the EEPROM_LOAD_DISABLE
2684 * bit needs region of shared SRAM needs to be non-zero.
2685 */
2686 static void ipw_eeprom_init_sram(struct ipw_priv *priv)
2687 {
2688 int i;
2689 __le16 *eeprom = (__le16 *) priv->eeprom;
2690
2691 IPW_DEBUG_TRACE(">>\n");
2692
2693 /* read entire contents of eeprom into private buffer */
2694 for (i = 0; i < 128; i++)
2695 eeprom[i] = cpu_to_le16(eeprom_read_u16(priv, (u8) i));
2696
2697 /*
2698 If the data looks correct, then copy it to our private
2699 copy. Otherwise let the firmware know to perform the operation
2700 on its own.
2701 */
2702 if (priv->eeprom[EEPROM_VERSION] != 0) {
2703 IPW_DEBUG_INFO("Writing EEPROM data into SRAM\n");
2704
2705 /* write the eeprom data to sram */
2706 for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++)
2707 ipw_write8(priv, IPW_EEPROM_DATA + i, priv->eeprom[i]);
2708
2709 /* Do not load eeprom data on fatal error or suspend */
2710 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0);
2711 } else {
2712 IPW_DEBUG_INFO("Enabling FW initializationg of SRAM\n");
2713
2714 /* Load eeprom data on fatal error or suspend */
2715 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 1);
2716 }
2717
2718 IPW_DEBUG_TRACE("<<\n");
2719 }
2720
2721 static void ipw_zero_memory(struct ipw_priv *priv, u32 start, u32 count)
2722 {
2723 count >>= 2;
2724 if (!count)
2725 return;
2726 _ipw_write32(priv, IPW_AUTOINC_ADDR, start);
2727 while (count--)
2728 _ipw_write32(priv, IPW_AUTOINC_DATA, 0);
2729 }
2730
2731 static inline void ipw_fw_dma_reset_command_blocks(struct ipw_priv *priv)
2732 {
2733 ipw_zero_memory(priv, IPW_SHARED_SRAM_DMA_CONTROL,
2734 CB_NUMBER_OF_ELEMENTS_SMALL *
2735 sizeof(struct command_block));
2736 }
2737
2738 static int ipw_fw_dma_enable(struct ipw_priv *priv)
2739 { /* start dma engine but no transfers yet */
2740
2741 IPW_DEBUG_FW(">> : \n");
2742
2743 /* Start the dma */
2744 ipw_fw_dma_reset_command_blocks(priv);
2745
2746 /* Write CB base address */
2747 ipw_write_reg32(priv, IPW_DMA_I_CB_BASE, IPW_SHARED_SRAM_DMA_CONTROL);
2748
2749 IPW_DEBUG_FW("<< : \n");
2750 return 0;
2751 }
2752
2753 static void ipw_fw_dma_abort(struct ipw_priv *priv)
2754 {
2755 u32 control = 0;
2756
2757 IPW_DEBUG_FW(">> :\n");
2758
2759 /* set the Stop and Abort bit */
2760 control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_STOP_AND_ABORT;
2761 ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control);
2762 priv->sram_desc.last_cb_index = 0;
2763
2764 IPW_DEBUG_FW("<< \n");
2765 }
2766
2767 static int ipw_fw_dma_write_command_block(struct ipw_priv *priv, int index,
2768 struct command_block *cb)
2769 {
2770 u32 address =
2771 IPW_SHARED_SRAM_DMA_CONTROL +
2772 (sizeof(struct command_block) * index);
2773 IPW_DEBUG_FW(">> :\n");
2774
2775 ipw_write_indirect(priv, address, (u8 *) cb,
2776 (int)sizeof(struct command_block));
2777
2778 IPW_DEBUG_FW("<< :\n");
2779 return 0;
2780
2781 }
2782
2783 static int ipw_fw_dma_kick(struct ipw_priv *priv)
2784 {
2785 u32 control = 0;
2786 u32 index = 0;
2787
2788 IPW_DEBUG_FW(">> :\n");
2789
2790 for (index = 0; index < priv->sram_desc.last_cb_index; index++)
2791 ipw_fw_dma_write_command_block(priv, index,
2792 &priv->sram_desc.cb_list[index]);
2793
2794 /* Enable the DMA in the CSR register */
2795 ipw_clear_bit(priv, IPW_RESET_REG,
2796 IPW_RESET_REG_MASTER_DISABLED |
2797 IPW_RESET_REG_STOP_MASTER);
2798
2799 /* Set the Start bit. */
2800 control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_START;
2801 ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control);
2802
2803 IPW_DEBUG_FW("<< :\n");
2804 return 0;
2805 }
2806
2807 static void ipw_fw_dma_dump_command_block(struct ipw_priv *priv)
2808 {
2809 u32 address;
2810 u32 register_value = 0;
2811 u32 cb_fields_address = 0;
2812
2813 IPW_DEBUG_FW(">> :\n");
2814 address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB);
2815 IPW_DEBUG_FW_INFO("Current CB is 0x%x \n", address);
2816
2817 /* Read the DMA Controlor register */
2818 register_value = ipw_read_reg32(priv, IPW_DMA_I_DMA_CONTROL);
2819 IPW_DEBUG_FW_INFO("IPW_DMA_I_DMA_CONTROL is 0x%x \n", register_value);
2820
2821 /* Print the CB values */
2822 cb_fields_address = address;
2823 register_value = ipw_read_reg32(priv, cb_fields_address);
2824 IPW_DEBUG_FW_INFO("Current CB ControlField is 0x%x \n", register_value);
2825
2826 cb_fields_address += sizeof(u32);
2827 register_value = ipw_read_reg32(priv, cb_fields_address);
2828 IPW_DEBUG_FW_INFO("Current CB Source Field is 0x%x \n", register_value);
2829
2830 cb_fields_address += sizeof(u32);
2831 register_value = ipw_read_reg32(priv, cb_fields_address);
2832 IPW_DEBUG_FW_INFO("Current CB Destination Field is 0x%x \n",
2833 register_value);
2834
2835 cb_fields_address += sizeof(u32);
2836 register_value = ipw_read_reg32(priv, cb_fields_address);
2837 IPW_DEBUG_FW_INFO("Current CB Status Field is 0x%x \n", register_value);
2838
2839 IPW_DEBUG_FW(">> :\n");
2840 }
2841
2842 static int ipw_fw_dma_command_block_index(struct ipw_priv *priv)
2843 {
2844 u32 current_cb_address = 0;
2845 u32 current_cb_index = 0;
2846
2847 IPW_DEBUG_FW("<< :\n");
2848 current_cb_address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB);
2849
2850 current_cb_index = (current_cb_address - IPW_SHARED_SRAM_DMA_CONTROL) /
2851 sizeof(struct command_block);
2852
2853 IPW_DEBUG_FW_INFO("Current CB index 0x%x address = 0x%X \n",
2854 current_cb_index, current_cb_address);
2855
2856 IPW_DEBUG_FW(">> :\n");
2857 return current_cb_index;
2858
2859 }
2860
2861 static int ipw_fw_dma_add_command_block(struct ipw_priv *priv,
2862 u32 src_address,
2863 u32 dest_address,
2864 u32 length,
2865 int interrupt_enabled, int is_last)
2866 {
2867
2868 u32 control = CB_VALID | CB_SRC_LE | CB_DEST_LE | CB_SRC_AUTOINC |
2869 CB_SRC_IO_GATED | CB_DEST_AUTOINC | CB_SRC_SIZE_LONG |
2870 CB_DEST_SIZE_LONG;
2871 struct command_block *cb;
2872 u32 last_cb_element = 0;
2873
2874 IPW_DEBUG_FW_INFO("src_address=0x%x dest_address=0x%x length=0x%x\n",
2875 src_address, dest_address, length);
2876
2877 if (priv->sram_desc.last_cb_index >= CB_NUMBER_OF_ELEMENTS_SMALL)
2878 return -1;
2879
2880 last_cb_element = priv->sram_desc.last_cb_index;
2881 cb = &priv->sram_desc.cb_list[last_cb_element];
2882 priv->sram_desc.last_cb_index++;
2883
2884 /* Calculate the new CB control word */
2885 if (interrupt_enabled)
2886 control |= CB_INT_ENABLED;
2887
2888 if (is_last)
2889 control |= CB_LAST_VALID;
2890
2891 control |= length;
2892
2893 /* Calculate the CB Element's checksum value */
2894 cb->status = control ^ src_address ^ dest_address;
2895
2896 /* Copy the Source and Destination addresses */
2897 cb->dest_addr = dest_address;
2898 cb->source_addr = src_address;
2899
2900 /* Copy the Control Word last */
2901 cb->control = control;
2902
2903 return 0;
2904 }
2905
2906 static int ipw_fw_dma_add_buffer(struct ipw_priv *priv, dma_addr_t *src_address,
2907 int nr, u32 dest_address, u32 len)
2908 {
2909 int ret, i;
2910 u32 size;
2911
2912 IPW_DEBUG_FW(">> \n");
2913 IPW_DEBUG_FW_INFO("nr=%d dest_address=0x%x len=0x%x\n",
2914 nr, dest_address, len);
2915
2916 for (i = 0; i < nr; i++) {
2917 size = min_t(u32, len - i * CB_MAX_LENGTH, CB_MAX_LENGTH);
2918 ret = ipw_fw_dma_add_command_block(priv, src_address[i],
2919 dest_address +
2920 i * CB_MAX_LENGTH, size,
2921 0, 0);
2922 if (ret) {
2923 IPW_DEBUG_FW_INFO(": Failed\n");
2924 return -1;
2925 } else
2926 IPW_DEBUG_FW_INFO(": Added new cb\n");
2927 }
2928
2929 IPW_DEBUG_FW("<< \n");
2930 return 0;
2931 }
2932
2933 static int ipw_fw_dma_wait(struct ipw_priv *priv)
2934 {
2935 u32 current_index = 0, previous_index;
2936 u32 watchdog = 0;
2937
2938 IPW_DEBUG_FW(">> : \n");
2939
2940 current_index = ipw_fw_dma_command_block_index(priv);
2941 IPW_DEBUG_FW_INFO("sram_desc.last_cb_index:0x%08X\n",
2942 (int)priv->sram_desc.last_cb_index);
2943
2944 while (current_index < priv->sram_desc.last_cb_index) {
2945 udelay(50);
2946 previous_index = current_index;
2947 current_index = ipw_fw_dma_command_block_index(priv);
2948
2949 if (previous_index < current_index) {
2950 watchdog = 0;
2951 continue;
2952 }
2953 if (++watchdog > 400) {
2954 IPW_DEBUG_FW_INFO("Timeout\n");
2955 ipw_fw_dma_dump_command_block(priv);
2956 ipw_fw_dma_abort(priv);
2957 return -1;
2958 }
2959 }
2960
2961 ipw_fw_dma_abort(priv);
2962
2963 /*Disable the DMA in the CSR register */
2964 ipw_set_bit(priv, IPW_RESET_REG,
2965 IPW_RESET_REG_MASTER_DISABLED | IPW_RESET_REG_STOP_MASTER);
2966
2967 IPW_DEBUG_FW("<< dmaWaitSync \n");
2968 return 0;
2969 }
2970
2971 static void ipw_remove_current_network(struct ipw_priv *priv)
2972 {
2973 struct list_head *element, *safe;
2974 struct libipw_network *network = NULL;
2975 unsigned long flags;
2976
2977 spin_lock_irqsave(&priv->ieee->lock, flags);
2978 list_for_each_safe(element, safe, &priv->ieee->network_list) {
2979 network = list_entry(element, struct libipw_network, list);
2980 if (!memcmp(network->bssid, priv->bssid, ETH_ALEN)) {
2981 list_del(element);
2982 list_add_tail(&network->list,
2983 &priv->ieee->network_free_list);
2984 }
2985 }
2986 spin_unlock_irqrestore(&priv->ieee->lock, flags);
2987 }
2988
2989 /**
2990 * Check that card is still alive.
2991 * Reads debug register from domain0.
2992 * If card is present, pre-defined value should
2993 * be found there.
2994 *
2995 * @param priv
2996 * @return 1 if card is present, 0 otherwise
2997 */
2998 static inline int ipw_alive(struct ipw_priv *priv)
2999 {
3000 return ipw_read32(priv, 0x90) == 0xd55555d5;
3001 }
3002
3003 /* timeout in msec, attempted in 10-msec quanta */
3004 static int ipw_poll_bit(struct ipw_priv *priv, u32 addr, u32 mask,
3005 int timeout)
3006 {
3007 int i = 0;
3008
3009 do {
3010 if ((ipw_read32(priv, addr) & mask) == mask)
3011 return i;
3012 mdelay(10);
3013 i += 10;
3014 } while (i < timeout);
3015
3016 return -ETIME;
3017 }
3018
3019 /* These functions load the firmware and micro code for the operation of
3020 * the ipw hardware. It assumes the buffer has all the bits for the
3021 * image and the caller is handling the memory allocation and clean up.
3022 */
3023
3024 static int ipw_stop_master(struct ipw_priv *priv)
3025 {
3026 int rc;
3027
3028 IPW_DEBUG_TRACE(">> \n");
3029 /* stop master. typical delay - 0 */
3030 ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER);
3031
3032 /* timeout is in msec, polled in 10-msec quanta */
3033 rc = ipw_poll_bit(priv, IPW_RESET_REG,
3034 IPW_RESET_REG_MASTER_DISABLED, 100);
3035 if (rc < 0) {
3036 IPW_ERROR("wait for stop master failed after 100ms\n");
3037 return -1;
3038 }
3039
3040 IPW_DEBUG_INFO("stop master %dms\n", rc);
3041
3042 return rc;
3043 }
3044
3045 static void ipw_arc_release(struct ipw_priv *priv)
3046 {
3047 IPW_DEBUG_TRACE(">> \n");
3048 mdelay(5);
3049
3050 ipw_clear_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET);
3051
3052 /* no one knows timing, for safety add some delay */
3053 mdelay(5);
3054 }
3055
3056 struct fw_chunk {
3057 __le32 address;
3058 __le32 length;
3059 };
3060
3061 static int ipw_load_ucode(struct ipw_priv *priv, u8 * data, size_t len)
3062 {
3063 int rc = 0, i, addr;
3064 u8 cr = 0;
3065 __le16 *image;
3066
3067 image = (__le16 *) data;
3068
3069 IPW_DEBUG_TRACE(">> \n");
3070
3071 rc = ipw_stop_master(priv);
3072
3073 if (rc < 0)
3074 return rc;
3075
3076 for (addr = IPW_SHARED_LOWER_BOUND;
3077 addr < IPW_REGISTER_DOMAIN1_END; addr += 4) {
3078 ipw_write32(priv, addr, 0);
3079 }
3080
3081 /* no ucode (yet) */
3082 memset(&priv->dino_alive, 0, sizeof(priv->dino_alive));
3083 /* destroy DMA queues */
3084 /* reset sequence */
3085
3086 ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_ON);
3087 ipw_arc_release(priv);
3088 ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_OFF);
3089 mdelay(1);
3090
3091 /* reset PHY */
3092 ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, IPW_BASEBAND_POWER_DOWN);
3093 mdelay(1);
3094
3095 ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, 0);
3096 mdelay(1);
3097
3098 /* enable ucode store */
3099 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0x0);
3100 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_CS);
3101 mdelay(1);
3102
3103 /* write ucode */
3104 /**
3105 * @bug
3106 * Do NOT set indirect address register once and then
3107 * store data to indirect data register in the loop.
3108 * It seems very reasonable, but in this case DINO do not
3109 * accept ucode. It is essential to set address each time.
3110 */
3111 /* load new ipw uCode */
3112 for (i = 0; i < len / 2; i++)
3113 ipw_write_reg16(priv, IPW_BASEBAND_CONTROL_STORE,
3114 le16_to_cpu(image[i]));
3115
3116 /* enable DINO */
3117 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0);
3118 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_SYSTEM);
3119
3120 /* this is where the igx / win driver deveates from the VAP driver. */
3121
3122 /* wait for alive response */
3123 for (i = 0; i < 100; i++) {
3124 /* poll for incoming data */
3125 cr = ipw_read_reg8(priv, IPW_BASEBAND_CONTROL_STATUS);
3126 if (cr & DINO_RXFIFO_DATA)
3127 break;
3128 mdelay(1);
3129 }
3130
3131 if (cr & DINO_RXFIFO_DATA) {
3132 /* alive_command_responce size is NOT multiple of 4 */
3133 __le32 response_buffer[(sizeof(priv->dino_alive) + 3) / 4];
3134
3135 for (i = 0; i < ARRAY_SIZE(response_buffer); i++)
3136 response_buffer[i] =
3137 cpu_to_le32(ipw_read_reg32(priv,
3138 IPW_BASEBAND_RX_FIFO_READ));
3139 memcpy(&priv->dino_alive, response_buffer,
3140 sizeof(priv->dino_alive));
3141 if (priv->dino_alive.alive_command == 1
3142 && priv->dino_alive.ucode_valid == 1) {
3143 rc = 0;
3144 IPW_DEBUG_INFO
3145 ("Microcode OK, rev. %d (0x%x) dev. %d (0x%x) "
3146 "of %02d/%02d/%02d %02d:%02d\n",
3147 priv->dino_alive.software_revision,
3148 priv->dino_alive.software_revision,
3149 priv->dino_alive.device_identifier,
3150 priv->dino_alive.device_identifier,
3151 priv->dino_alive.time_stamp[0],
3152 priv->dino_alive.time_stamp[1],
3153 priv->dino_alive.time_stamp[2],
3154 priv->dino_alive.time_stamp[3],
3155 priv->dino_alive.time_stamp[4]);
3156 } else {
3157 IPW_DEBUG_INFO("Microcode is not alive\n");
3158 rc = -EINVAL;
3159 }
3160 } else {
3161 IPW_DEBUG_INFO("No alive response from DINO\n");
3162 rc = -ETIME;
3163 }
3164
3165 /* disable DINO, otherwise for some reason
3166 firmware have problem getting alive resp. */
3167 ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0);
3168
3169 return rc;
3170 }
3171
3172 static int ipw_load_firmware(struct ipw_priv *priv, u8 * data, size_t len)
3173 {
3174 int ret = -1;
3175 int offset = 0;
3176 struct fw_chunk *chunk;
3177 int total_nr = 0;
3178 int i;
3179 struct pci_pool *pool;
3180 void **virts;
3181 dma_addr_t *phys;
3182
3183 IPW_DEBUG_TRACE("<< : \n");
3184
3185 virts = kmalloc(sizeof(void *) * CB_NUMBER_OF_ELEMENTS_SMALL,
3186 GFP_KERNEL);
3187 if (!virts)
3188 return -ENOMEM;
3189
3190 phys = kmalloc(sizeof(dma_addr_t) * CB_NUMBER_OF_ELEMENTS_SMALL,
3191 GFP_KERNEL);
3192 if (!phys) {
3193 kfree(virts);
3194 return -ENOMEM;
3195 }
3196 pool = pci_pool_create("ipw2200", priv->pci_dev, CB_MAX_LENGTH, 0, 0);
3197 if (!pool) {
3198 IPW_ERROR("pci_pool_create failed\n");
3199 kfree(phys);
3200 kfree(virts);
3201 return -ENOMEM;
3202 }
3203
3204 /* Start the Dma */
3205 ret = ipw_fw_dma_enable(priv);
3206
3207 /* the DMA is already ready this would be a bug. */
3208 BUG_ON(priv->sram_desc.last_cb_index > 0);
3209
3210 do {
3211 u32 chunk_len;
3212 u8 *start;
3213 int size;
3214 int nr = 0;
3215
3216 chunk = (struct fw_chunk *)(data + offset);
3217 offset += sizeof(struct fw_chunk);
3218 chunk_len = le32_to_cpu(chunk->length);
3219 start = data + offset;
3220
3221 nr = (chunk_len + CB_MAX_LENGTH - 1) / CB_MAX_LENGTH;
3222 for (i = 0; i < nr; i++) {
3223 virts[total_nr] = pci_pool_alloc(pool, GFP_KERNEL,
3224 &phys[total_nr]);
3225 if (!virts[total_nr]) {
3226 ret = -ENOMEM;
3227 goto out;
3228 }
3229 size = min_t(u32, chunk_len - i * CB_MAX_LENGTH,
3230 CB_MAX_LENGTH);
3231 memcpy(virts[total_nr], start, size);
3232 start += size;
3233 total_nr++;
3234 /* We don't support fw chunk larger than 64*8K */
3235 BUG_ON(total_nr > CB_NUMBER_OF_ELEMENTS_SMALL);
3236 }
3237
3238 /* build DMA packet and queue up for sending */
3239 /* dma to chunk->address, the chunk->length bytes from data +
3240 * offeset*/
3241 /* Dma loading */
3242 ret = ipw_fw_dma_add_buffer(priv, &phys[total_nr - nr],
3243 nr, le32_to_cpu(chunk->address),
3244 chunk_len);
3245 if (ret) {
3246 IPW_DEBUG_INFO("dmaAddBuffer Failed\n");
3247 goto out;
3248 }
3249
3250 offset += chunk_len;
3251 } while (offset < len);
3252
3253 /* Run the DMA and wait for the answer */
3254 ret = ipw_fw_dma_kick(priv);
3255 if (ret) {
3256 IPW_ERROR("dmaKick Failed\n");
3257 goto out;
3258 }
3259
3260 ret = ipw_fw_dma_wait(priv);
3261 if (ret) {
3262 IPW_ERROR("dmaWaitSync Failed\n");
3263 goto out;
3264 }
3265 out:
3266 for (i = 0; i < total_nr; i++)
3267 pci_pool_free(pool, virts[i], phys[i]);
3268
3269 pci_pool_destroy(pool);
3270 kfree(phys);
3271 kfree(virts);
3272
3273 return ret;
3274 }
3275
3276 /* stop nic */
3277 static int ipw_stop_nic(struct ipw_priv *priv)
3278 {
3279 int rc = 0;
3280
3281 /* stop */
3282 ipw_write32(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER);
3283
3284 rc = ipw_poll_bit(priv, IPW_RESET_REG,
3285 IPW_RESET_REG_MASTER_DISABLED, 500);
3286 if (rc < 0) {
3287 IPW_ERROR("wait for reg master disabled failed after 500ms\n");
3288 return rc;
3289 }
3290
3291 ipw_set_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET);
3292
3293 return rc;
3294 }
3295
3296 static void ipw_start_nic(struct ipw_priv *priv)
3297 {
3298 IPW_DEBUG_TRACE(">>\n");
3299
3300 /* prvHwStartNic release ARC */
3301 ipw_clear_bit(priv, IPW_RESET_REG,
3302 IPW_RESET_REG_MASTER_DISABLED |
3303 IPW_RESET_REG_STOP_MASTER |
3304 CBD_RESET_REG_PRINCETON_RESET);
3305
3306 /* enable power management */
3307 ipw_set_bit(priv, IPW_GP_CNTRL_RW,
3308 IPW_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
3309
3310 IPW_DEBUG_TRACE("<<\n");
3311 }
3312
3313 static int ipw_init_nic(struct ipw_priv *priv)
3314 {
3315 int rc;
3316
3317 IPW_DEBUG_TRACE(">>\n");
3318 /* reset */
3319 /*prvHwInitNic */
3320 /* set "initialization complete" bit to move adapter to D0 state */
3321 ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE);
3322
3323 /* low-level PLL activation */
3324 ipw_write32(priv, IPW_READ_INT_REGISTER,
3325 IPW_BIT_INT_HOST_SRAM_READ_INT_REGISTER);
3326
3327 /* wait for clock stabilization */
3328 rc = ipw_poll_bit(priv, IPW_GP_CNTRL_RW,
3329 IPW_GP_CNTRL_BIT_CLOCK_READY, 250);
3330 if (rc < 0)
3331 IPW_DEBUG_INFO("FAILED wait for clock stablization\n");
3332
3333 /* assert SW reset */
3334 ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_SW_RESET);
3335
3336 udelay(10);
3337
3338 /* set "initialization complete" bit to move adapter to D0 state */
3339 ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE);
3340
3341 IPW_DEBUG_TRACE(">>\n");
3342 return 0;
3343 }
3344
3345 /* Call this function from process context, it will sleep in request_firmware.
3346 * Probe is an ok place to call this from.
3347 */
3348 static int ipw_reset_nic(struct ipw_priv *priv)
3349 {
3350 int rc = 0;
3351 unsigned long flags;
3352
3353 IPW_DEBUG_TRACE(">>\n");
3354
3355 rc = ipw_init_nic(priv);
3356
3357 spin_lock_irqsave(&priv->lock, flags);
3358 /* Clear the 'host command active' bit... */
3359 priv->status &= ~STATUS_HCMD_ACTIVE;
3360 wake_up_interruptible(&priv->wait_command_queue);
3361 priv->status &= ~(STATUS_SCANNING | STATUS_SCAN_ABORTING);
3362 wake_up_interruptible(&priv->wait_state);
3363 spin_unlock_irqrestore(&priv->lock, flags);
3364
3365 IPW_DEBUG_TRACE("<<\n");
3366 return rc;
3367 }
3368
3369
3370 struct ipw_fw {
3371 __le32 ver;
3372 __le32 boot_size;
3373 __le32 ucode_size;
3374 __le32 fw_size;
3375 u8 data[0];
3376 };
3377
3378 static int ipw_get_fw(struct ipw_priv *priv,
3379 const struct firmware **raw, const char *name)
3380 {
3381 struct ipw_fw *fw;
3382 int rc;
3383
3384 /* ask firmware_class module to get the boot firmware off disk */
3385 rc = request_firmware(raw, name, &priv->pci_dev->dev);
3386 if (rc < 0) {
3387 IPW_ERROR("%s request_firmware failed: Reason %d\n", name, rc);
3388 return rc;
3389 }
3390
3391 if ((*raw)->size < sizeof(*fw)) {
3392 IPW_ERROR("%s is too small (%zd)\n", name, (*raw)->size);
3393 return -EINVAL;
3394 }
3395
3396 fw = (void *)(*raw)->data;
3397
3398 if ((*raw)->size < sizeof(*fw) + le32_to_cpu(fw->boot_size) +
3399 le32_to_cpu(fw->ucode_size) + le32_to_cpu(fw->fw_size)) {
3400 IPW_ERROR("%s is too small or corrupt (%zd)\n",
3401 name, (*raw)->size);
3402 return -EINVAL;
3403 }
3404
3405 IPW_DEBUG_INFO("Read firmware '%s' image v%d.%d (%zd bytes)\n",
3406 name,
3407 le32_to_cpu(fw->ver) >> 16,
3408 le32_to_cpu(fw->ver) & 0xff,
3409 (*raw)->size - sizeof(*fw));
3410 return 0;
3411 }
3412
3413 #define IPW_RX_BUF_SIZE (3000)
3414
3415 static void ipw_rx_queue_reset(struct ipw_priv *priv,
3416 struct ipw_rx_queue *rxq)
3417 {
3418 unsigned long flags;
3419 int i;
3420
3421 spin_lock_irqsave(&rxq->lock, flags);
3422
3423 INIT_LIST_HEAD(&rxq->rx_free);
3424 INIT_LIST_HEAD(&rxq->rx_used);
3425
3426 /* Fill the rx_used queue with _all_ of the Rx buffers */
3427 for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
3428 /* In the reset function, these buffers may have been allocated
3429 * to an SKB, so we need to unmap and free potential storage */
3430 if (rxq->pool[i].skb != NULL) {
3431 pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr,
3432 IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
3433 dev_kfree_skb(rxq->pool[i].skb);
3434 rxq->pool[i].skb = NULL;
3435 }
3436 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
3437 }
3438
3439 /* Set us so that we have processed and used all buffers, but have
3440 * not restocked the Rx queue with fresh buffers */
3441 rxq->read = rxq->write = 0;
3442 rxq->free_count = 0;
3443 spin_unlock_irqrestore(&rxq->lock, flags);
3444 }
3445
3446 #ifdef CONFIG_PM
3447 static int fw_loaded = 0;
3448 static const struct firmware *raw = NULL;
3449
3450 static void free_firmware(void)
3451 {
3452 if (fw_loaded) {
3453 release_firmware(raw);
3454 raw = NULL;
3455 fw_loaded = 0;
3456 }
3457 }
3458 #else
3459 #define free_firmware() do {} while (0)
3460 #endif
3461
3462 static int ipw_load(struct ipw_priv *priv)
3463 {
3464 #ifndef CONFIG_PM
3465 const struct firmware *raw = NULL;
3466 #endif
3467 struct ipw_fw *fw;
3468 u8 *boot_img, *ucode_img, *fw_img;
3469 u8 *name = NULL;
3470 int rc = 0, retries = 3;
3471
3472 switch (priv->ieee->iw_mode) {
3473 case IW_MODE_ADHOC:
3474 name = "ipw2200-ibss.fw";
3475 break;
3476 #ifdef CONFIG_IPW2200_MONITOR
3477 case IW_MODE_MONITOR:
3478 name = "ipw2200-sniffer.fw";
3479 break;
3480 #endif
3481 case IW_MODE_INFRA:
3482 name = "ipw2200-bss.fw";
3483 break;
3484 }
3485
3486 if (!name) {
3487 rc = -EINVAL;
3488 goto error;
3489 }
3490
3491 #ifdef CONFIG_PM
3492 if (!fw_loaded) {
3493 #endif
3494 rc = ipw_get_fw(priv, &raw, name);
3495 if (rc < 0)
3496 goto error;
3497 #ifdef CONFIG_PM
3498 }
3499 #endif
3500
3501 fw = (void *)raw->data;
3502 boot_img = &fw->data[0];
3503 ucode_img = &fw->data[le32_to_cpu(fw->boot_size)];
3504 fw_img = &fw->data[le32_to_cpu(fw->boot_size) +
3505 le32_to_cpu(fw->ucode_size)];
3506
3507 if (rc < 0)
3508 goto error;
3509
3510 if (!priv->rxq)
3511 priv->rxq = ipw_rx_queue_alloc(priv);
3512 else
3513 ipw_rx_queue_reset(priv, priv->rxq);
3514 if (!priv->rxq) {
3515 IPW_ERROR("Unable to initialize Rx queue\n");
3516 goto error;
3517 }
3518
3519 retry:
3520 /* Ensure interrupts are disabled */
3521 ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
3522 priv->status &= ~STATUS_INT_ENABLED;
3523
3524 /* ack pending interrupts */
3525 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3526
3527 ipw_stop_nic(priv);
3528
3529 rc = ipw_reset_nic(priv);
3530 if (rc < 0) {
3531 IPW_ERROR("Unable to reset NIC\n");
3532 goto error;
3533 }
3534
3535 ipw_zero_memory(priv, IPW_NIC_SRAM_LOWER_BOUND,
3536 IPW_NIC_SRAM_UPPER_BOUND - IPW_NIC_SRAM_LOWER_BOUND);
3537
3538 /* DMA the initial boot firmware into the device */
3539 rc = ipw_load_firmware(priv, boot_img, le32_to_cpu(fw->boot_size));
3540 if (rc < 0) {
3541 IPW_ERROR("Unable to load boot firmware: %d\n", rc);
3542 goto error;
3543 }
3544
3545 /* kick start the device */
3546 ipw_start_nic(priv);
3547
3548 /* wait for the device to finish its initial startup sequence */
3549 rc = ipw_poll_bit(priv, IPW_INTA_RW,
3550 IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500);
3551 if (rc < 0) {
3552 IPW_ERROR("device failed to boot initial fw image\n");
3553 goto error;
3554 }
3555 IPW_DEBUG_INFO("initial device response after %dms\n", rc);
3556
3557 /* ack fw init done interrupt */
3558 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE);
3559
3560 /* DMA the ucode into the device */
3561 rc = ipw_load_ucode(priv, ucode_img, le32_to_cpu(fw->ucode_size));
3562 if (rc < 0) {
3563 IPW_ERROR("Unable to load ucode: %d\n", rc);
3564 goto error;
3565 }
3566
3567 /* stop nic */
3568 ipw_stop_nic(priv);
3569
3570 /* DMA bss firmware into the device */
3571 rc = ipw_load_firmware(priv, fw_img, le32_to_cpu(fw->fw_size));
3572 if (rc < 0) {
3573 IPW_ERROR("Unable to load firmware: %d\n", rc);
3574 goto error;
3575 }
3576 #ifdef CONFIG_PM
3577 fw_loaded = 1;
3578 #endif
3579
3580 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0);
3581
3582 rc = ipw_queue_reset(priv);
3583 if (rc < 0) {
3584 IPW_ERROR("Unable to initialize queues\n");
3585 goto error;
3586 }
3587
3588 /* Ensure interrupts are disabled */
3589 ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
3590 /* ack pending interrupts */
3591 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3592
3593 /* kick start the device */
3594 ipw_start_nic(priv);
3595
3596 if (ipw_read32(priv, IPW_INTA_RW) & IPW_INTA_BIT_PARITY_ERROR) {
3597 if (retries > 0) {
3598 IPW_WARNING("Parity error. Retrying init.\n");
3599 retries--;
3600 goto retry;
3601 }
3602
3603 IPW_ERROR("TODO: Handle parity error -- schedule restart?\n");
3604 rc = -EIO;
3605 goto error;
3606 }
3607
3608 /* wait for the device */
3609 rc = ipw_poll_bit(priv, IPW_INTA_RW,
3610 IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500);
3611 if (rc < 0) {
3612 IPW_ERROR("device failed to start within 500ms\n");
3613 goto error;
3614 }
3615 IPW_DEBUG_INFO("device response after %dms\n", rc);
3616
3617 /* ack fw init done interrupt */
3618 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE);
3619
3620 /* read eeprom data and initialize the eeprom region of sram */
3621 priv->eeprom_delay = 1;
3622 ipw_eeprom_init_sram(priv);
3623
3624 /* enable interrupts */
3625 ipw_enable_interrupts(priv);
3626
3627 /* Ensure our queue has valid packets */
3628 ipw_rx_queue_replenish(priv);
3629
3630 ipw_write32(priv, IPW_RX_READ_INDEX, priv->rxq->read);
3631
3632 /* ack pending interrupts */
3633 ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3634
3635 #ifndef CONFIG_PM
3636 release_firmware(raw);
3637 #endif
3638 return 0;
3639
3640 error:
3641 if (priv->rxq) {
3642 ipw_rx_queue_free(priv, priv->rxq);
3643 priv->rxq = NULL;
3644 }
3645 ipw_tx_queue_free(priv);
3646 if (raw)
3647 release_firmware(raw);
3648 #ifdef CONFIG_PM
3649 fw_loaded = 0;
3650 raw = NULL;
3651 #endif
3652
3653 return rc;
3654 }
3655
3656 /**
3657 * DMA services
3658 *
3659 * Theory of operation
3660 *
3661 * A queue is a circular buffers with 'Read' and 'Write' pointers.
3662 * 2 empty entries always kept in the buffer to protect from overflow.
3663 *
3664 * For Tx queue, there are low mark and high mark limits. If, after queuing
3665 * the packet for Tx, free space become < low mark, Tx queue stopped. When
3666 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
3667 * Tx queue resumed.
3668 *
3669 * The IPW operates with six queues, one receive queue in the device's
3670 * sram, one transmit queue for sending commands to the device firmware,
3671 * and four transmit queues for data.
3672 *
3673 * The four transmit queues allow for performing quality of service (qos)
3674 * transmissions as per the 802.11 protocol. Currently Linux does not
3675 * provide a mechanism to the user for utilizing prioritized queues, so
3676 * we only utilize the first data transmit queue (queue1).
3677 */
3678
3679 /**
3680 * Driver allocates buffers of this size for Rx
3681 */
3682
3683 /**
3684 * ipw_rx_queue_space - Return number of free slots available in queue.
3685 */
3686 static int ipw_rx_queue_space(const struct ipw_rx_queue *q)
3687 {
3688 int s = q->read - q->write;
3689 if (s <= 0)
3690 s += RX_QUEUE_SIZE;
3691 /* keep some buffer to not confuse full and empty queue */
3692 s -= 2;
3693 if (s < 0)
3694 s = 0;
3695 return s;
3696 }
3697
3698 static inline int ipw_tx_queue_space(const struct clx2_queue *q)
3699 {
3700 int s = q->last_used - q->first_empty;
3701 if (s <= 0)
3702 s += q->n_bd;
3703 s -= 2; /* keep some reserve to not confuse empty and full situations */
3704 if (s < 0)
3705 s = 0;
3706 return s;
3707 }
3708
3709 static inline int ipw_queue_inc_wrap(int index, int n_bd)
3710 {
3711 return (++index == n_bd) ? 0 : index;
3712 }
3713
3714 /**
3715 * Initialize common DMA queue structure
3716 *
3717 * @param q queue to init
3718 * @param count Number of BD's to allocate. Should be power of 2
3719 * @param read_register Address for 'read' register
3720 * (not offset within BAR, full address)
3721 * @param write_register Address for 'write' register
3722 * (not offset within BAR, full address)
3723 * @param base_register Address for 'base' register
3724 * (not offset within BAR, full address)
3725 * @param size Address for 'size' register
3726 * (not offset within BAR, full address)
3727 */
3728 static void ipw_queue_init(struct ipw_priv *priv, struct clx2_queue *q,
3729 int count, u32 read, u32 write, u32 base, u32 size)
3730 {
3731 q->n_bd = count;
3732
3733 q->low_mark = q->n_bd / 4;
3734 if (q->low_mark < 4)
3735 q->low_mark = 4;
3736
3737 q->high_mark = q->n_bd / 8;
3738 if (q->high_mark < 2)
3739 q->high_mark = 2;
3740
3741 q->first_empty = q->last_used = 0;
3742 q->reg_r = read;
3743 q->reg_w = write;
3744
3745 ipw_write32(priv, base, q->dma_addr);
3746 ipw_write32(priv, size, count);
3747 ipw_write32(priv, read, 0);
3748 ipw_write32(priv, write, 0);
3749
3750 _ipw_read32(priv, 0x90);
3751 }
3752
3753 static int ipw_queue_tx_init(struct ipw_priv *priv,
3754 struct clx2_tx_queue *q,
3755 int count, u32 read, u32 write, u32 base, u32 size)
3756 {
3757 struct pci_dev *dev = priv->pci_dev;
3758
3759 q->txb = kmalloc(sizeof(q->txb[0]) * count, GFP_KERNEL);
3760 if (!q->txb) {
3761 IPW_ERROR("vmalloc for auxilary BD structures failed\n");
3762 return -ENOMEM;
3763 }
3764
3765 q->bd =
3766 pci_alloc_consistent(dev, sizeof(q->bd[0]) * count, &q->q.dma_addr);
3767 if (!q->bd) {
3768 IPW_ERROR("pci_alloc_consistent(%zd) failed\n",
3769 sizeof(q->bd[0]) * count);
3770 kfree(q->txb);
3771 q->txb = NULL;
3772 return -ENOMEM;
3773 }
3774
3775 ipw_queue_init(priv, &q->q, count, read, write, base, size);
3776 return 0;
3777 }
3778
3779 /**
3780 * Free one TFD, those at index [txq->q.last_used].
3781 * Do NOT advance any indexes
3782 *
3783 * @param dev
3784 * @param txq
3785 */
3786 static void ipw_queue_tx_free_tfd(struct ipw_priv *priv,
3787 struct clx2_tx_queue *txq)
3788 {
3789 struct tfd_frame *bd = &txq->bd[txq->q.last_used];
3790 struct pci_dev *dev = priv->pci_dev;
3791 int i;
3792
3793 /* classify bd */
3794 if (bd->control_flags.message_type == TX_HOST_COMMAND_TYPE)
3795 /* nothing to cleanup after for host commands */
3796 return;
3797
3798 /* sanity check */
3799 if (le32_to_cpu(bd->u.data.num_chunks) > NUM_TFD_CHUNKS) {
3800 IPW_ERROR("Too many chunks: %i\n",
3801 le32_to_cpu(bd->u.data.num_chunks));
3802 /** @todo issue fatal error, it is quite serious situation */
3803 return;
3804 }
3805
3806 /* unmap chunks if any */
3807 for (i = 0; i < le32_to_cpu(bd->u.data.num_chunks); i++) {
3808 pci_unmap_single(dev, le32_to_cpu(bd->u.data.chunk_ptr[i]),
3809 le16_to_cpu(bd->u.data.chunk_len[i]),
3810 PCI_DMA_TODEVICE);
3811 if (txq->txb[txq->q.last_used]) {
3812 libipw_txb_free(txq->txb[txq->q.last_used]);
3813 txq->txb[txq->q.last_used] = NULL;
3814 }
3815 }
3816 }
3817
3818 /**
3819 * Deallocate DMA queue.
3820 *
3821 * Empty queue by removing and destroying all BD's.
3822 * Free all buffers.
3823 *
3824 * @param dev
3825 * @param q
3826 */
3827 static void ipw_queue_tx_free(struct ipw_priv *priv, struct clx2_tx_queue *txq)
3828 {
3829 struct clx2_queue *q = &txq->q;
3830 struct pci_dev *dev = priv->pci_dev;
3831
3832 if (q->n_bd == 0)
3833 return;
3834
3835 /* first, empty all BD's */
3836 for (; q->first_empty != q->last_used;
3837 q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) {
3838 ipw_queue_tx_free_tfd(priv, txq);
3839 }
3840
3841 /* free buffers belonging to queue itself */
3842 pci_free_consistent(dev, sizeof(txq->bd[0]) * q->n_bd, txq->bd,
3843 q->dma_addr);
3844 kfree(txq->txb);
3845
3846 /* 0 fill whole structure */
3847 memset(txq, 0, sizeof(*txq));
3848 }
3849
3850 /**
3851 * Destroy all DMA queues and structures
3852 *
3853 * @param priv
3854 */
3855 static void ipw_tx_queue_free(struct ipw_priv *priv)
3856 {
3857 /* Tx CMD queue */
3858 ipw_queue_tx_free(priv, &priv->txq_cmd);
3859
3860 /* Tx queues */
3861 ipw_queue_tx_free(priv, &priv->txq[0]);
3862 ipw_queue_tx_free(priv, &priv->txq[1]);
3863 ipw_queue_tx_free(priv, &priv->txq[2]);
3864 ipw_queue_tx_free(priv, &priv->txq[3]);
3865 }
3866
3867 static void ipw_create_bssid(struct ipw_priv *priv, u8 * bssid)
3868 {
3869 /* First 3 bytes are manufacturer */
3870 bssid[0] = priv->mac_addr[0];
3871 bssid[1] = priv->mac_addr[1];
3872 bssid[2] = priv->mac_addr[2];
3873
3874 /* Last bytes are random */
3875 get_random_bytes(&bssid[3], ETH_ALEN - 3);
3876
3877 bssid[0] &= 0xfe; /* clear multicast bit */
3878 bssid[0] |= 0x02; /* set local assignment bit (IEEE802) */
3879 }
3880
3881 static u8 ipw_add_station(struct ipw_priv *priv, u8 * bssid)
3882 {
3883 struct ipw_station_entry entry;
3884 int i;
3885
3886 for (i = 0; i < priv->num_stations; i++) {
3887 if (!memcmp(priv->stations[i], bssid, ETH_ALEN)) {
3888 /* Another node is active in network */
3889 priv->missed_adhoc_beacons = 0;
3890 if (!(priv->config & CFG_STATIC_CHANNEL))
3891 /* when other nodes drop out, we drop out */
3892 priv->config &= ~CFG_ADHOC_PERSIST;
3893
3894 return i;
3895 }
3896 }
3897
3898 if (i == MAX_STATIONS)
3899 return IPW_INVALID_STATION;
3900
3901 IPW_DEBUG_SCAN("Adding AdHoc station: %pM\n", bssid);
3902
3903 entry.reserved = 0;
3904 entry.support_mode = 0;
3905 memcpy(entry.mac_addr, bssid, ETH_ALEN);
3906 memcpy(priv->stations[i], bssid, ETH_ALEN);
3907 ipw_write_direct(priv, IPW_STATION_TABLE_LOWER + i * sizeof(entry),
3908 &entry, sizeof(entry));
3909 priv->num_stations++;
3910
3911 return i;
3912 }
3913
3914 static u8 ipw_find_station(struct ipw_priv *priv, u8 * bssid)
3915 {
3916 int i;
3917
3918 for (i = 0; i < priv->num_stations; i++)
3919 if (!memcmp(priv->stations[i], bssid, ETH_ALEN))
3920 return i;
3921
3922 return IPW_INVALID_STATION;
3923 }
3924
3925 static void ipw_send_disassociate(struct ipw_priv *priv, int quiet)
3926 {
3927 int err;
3928
3929 if (priv->status & STATUS_ASSOCIATING) {
3930 IPW_DEBUG_ASSOC("Disassociating while associating.\n");
3931 queue_work(priv->workqueue, &priv->disassociate);
3932 return;
3933 }
3934
3935 if (!(priv->status & STATUS_ASSOCIATED)) {
3936 IPW_DEBUG_ASSOC("Disassociating while not associated.\n");
3937 return;
3938 }
3939
3940 IPW_DEBUG_ASSOC("Disassocation attempt from %pM "
3941 "on channel %d.\n",
3942 priv->assoc_request.bssid,
3943 priv->assoc_request.channel);
3944
3945 priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
3946 priv->status |= STATUS_DISASSOCIATING;
3947
3948 if (quiet)
3949 priv->assoc_request.assoc_type = HC_DISASSOC_QUIET;
3950 else
3951 priv->assoc_request.assoc_type = HC_DISASSOCIATE;
3952
3953 err = ipw_send_associate(priv, &priv->assoc_request);
3954 if (err) {
3955 IPW_DEBUG_HC("Attempt to send [dis]associate command "
3956 "failed.\n");
3957 return;
3958 }
3959
3960 }
3961
3962 static int ipw_disassociate(void *data)
3963 {
3964 struct ipw_priv *priv = data;
3965 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
3966 return 0;
3967 ipw_send_disassociate(data, 0);
3968 netif_carrier_off(priv->net_dev);
3969 return 1;
3970 }
3971
3972 static void ipw_bg_disassociate(struct work_struct *work)
3973 {
3974 struct ipw_priv *priv =
3975 container_of(work, struct ipw_priv, disassociate);
3976 mutex_lock(&priv->mutex);
3977 ipw_disassociate(priv);
3978 mutex_unlock(&priv->mutex);
3979 }
3980
3981 static void ipw_system_config(struct work_struct *work)
3982 {
3983 struct ipw_priv *priv =
3984 container_of(work, struct ipw_priv, system_config);
3985
3986 #ifdef CONFIG_IPW2200_PROMISCUOUS
3987 if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) {
3988 priv->sys_config.accept_all_data_frames = 1;
3989 priv->sys_config.accept_non_directed_frames = 1;
3990 priv->sys_config.accept_all_mgmt_bcpr = 1;
3991 priv->sys_config.accept_all_mgmt_frames = 1;
3992 }
3993 #endif
3994
3995 ipw_send_system_config(priv);
3996 }
3997
3998 struct ipw_status_code {
3999 u16 status;
4000 const char *reason;
4001 };
4002
4003 static const struct ipw_status_code ipw_status_codes[] = {
4004 {0x00, "Successful"},
4005 {0x01, "Unspecified failure"},
4006 {0x0A, "Cannot support all requested capabilities in the "
4007 "Capability information field"},
4008 {0x0B, "Reassociation denied due to inability to confirm that "
4009 "association exists"},
4010 {0x0C, "Association denied due to reason outside the scope of this "
4011 "standard"},
4012 {0x0D,
4013 "Responding station does not support the specified authentication "
4014 "algorithm"},
4015 {0x0E,
4016 "Received an Authentication frame with authentication sequence "
4017 "transaction sequence number out of expected sequence"},
4018 {0x0F, "Authentication rejected because of challenge failure"},
4019 {0x10, "Authentication rejected due to timeout waiting for next "
4020 "frame in sequence"},
4021 {0x11, "Association denied because AP is unable to handle additional "
4022 "associated stations"},
4023 {0x12,
4024 "Association denied due to requesting station not supporting all "
4025 "of the datarates in the BSSBasicServiceSet Parameter"},
4026 {0x13,
4027 "Association denied due to requesting station not supporting "
4028 "short preamble operation"},
4029 {0x14,
4030 "Association denied due to requesting station not supporting "
4031 "PBCC encoding"},
4032 {0x15,
4033 "Association denied due to requesting station not supporting "
4034 "channel agility"},
4035 {0x19,
4036 "Association denied due to requesting station not supporting "
4037 "short slot operation"},
4038 {0x1A,
4039 "Association denied due to requesting station not supporting "
4040 "DSSS-OFDM operation"},
4041 {0x28, "Invalid Information Element"},
4042 {0x29, "Group Cipher is not valid"},
4043 {0x2A, "Pairwise Cipher is not valid"},
4044 {0x2B, "AKMP is not valid"},
4045 {0x2C, "Unsupported RSN IE version"},
4046 {0x2D, "Invalid RSN IE Capabilities"},
4047 {0x2E, "Cipher suite is rejected per security policy"},
4048 };
4049
4050 static const char *ipw_get_status_code(u16 status)
4051 {
4052 int i;
4053 for (i = 0; i < ARRAY_SIZE(ipw_status_codes); i++)
4054 if (ipw_status_codes[i].status == (status & 0xff))
4055 return ipw_status_codes[i].reason;
4056 return "Unknown status value.";
4057 }
4058
4059 static void inline average_init(struct average *avg)
4060 {
4061 memset(avg, 0, sizeof(*avg));
4062 }
4063
4064 #define DEPTH_RSSI 8
4065 #define DEPTH_NOISE 16
4066 static s16 exponential_average(s16 prev_avg, s16 val, u8 depth)
4067 {
4068 return ((depth-1)*prev_avg + val)/depth;
4069 }
4070
4071 static void average_add(struct average *avg, s16 val)
4072 {
4073 avg->sum -= avg->entries[avg->pos];
4074 avg->sum += val;
4075 avg->entries[avg->pos++] = val;
4076 if (unlikely(avg->pos == AVG_ENTRIES)) {
4077 avg->init = 1;
4078 avg->pos = 0;
4079 }
4080 }
4081
4082 static s16 average_value(struct average *avg)
4083 {
4084 if (!unlikely(avg->init)) {
4085 if (avg->pos)
4086 return avg->sum / avg->pos;
4087 return 0;
4088 }
4089
4090 return avg->sum / AVG_ENTRIES;
4091 }
4092
4093 static void ipw_reset_stats(struct ipw_priv *priv)
4094 {
4095 u32 len = sizeof(u32);
4096
4097 priv->quality = 0;
4098
4099 average_init(&priv->average_missed_beacons);
4100 priv->exp_avg_rssi = -60;
4101 priv->exp_avg_noise = -85 + 0x100;
4102
4103 priv->last_rate = 0;
4104 priv->last_missed_beacons = 0;
4105 priv->last_rx_packets = 0;
4106 priv->last_tx_packets = 0;
4107 priv->last_tx_failures = 0;
4108
4109 /* Firmware managed, reset only when NIC is restarted, so we have to
4110 * normalize on the current value */
4111 ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC,
4112 &priv->last_rx_err, &len);
4113 ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE,
4114 &priv->last_tx_failures, &len);
4115
4116 /* Driver managed, reset with each association */
4117 priv->missed_adhoc_beacons = 0;
4118 priv->missed_beacons = 0;
4119 priv->tx_packets = 0;
4120 priv->rx_packets = 0;
4121
4122 }
4123
4124 static u32 ipw_get_max_rate(struct ipw_priv *priv)
4125 {
4126 u32 i = 0x80000000;
4127 u32 mask = priv->rates_mask;
4128 /* If currently associated in B mode, restrict the maximum
4129 * rate match to B rates */
4130 if (priv->assoc_request.ieee_mode == IPW_B_MODE)
4131 mask &= LIBIPW_CCK_RATES_MASK;
4132
4133 /* TODO: Verify that the rate is supported by the current rates
4134 * list. */
4135
4136 while (i && !(mask & i))
4137 i >>= 1;
4138 switch (i) {
4139 case LIBIPW_CCK_RATE_1MB_MASK:
4140 return 1000000;
4141 case LIBIPW_CCK_RATE_2MB_MASK:
4142 return 2000000;
4143 case LIBIPW_CCK_RATE_5MB_MASK:
4144 return 5500000;
4145 case LIBIPW_OFDM_RATE_6MB_MASK:
4146 return 6000000;
4147 case LIBIPW_OFDM_RATE_9MB_MASK:
4148 return 9000000;
4149 case LIBIPW_CCK_RATE_11MB_MASK:
4150 return 11000000;
4151 case LIBIPW_OFDM_RATE_12MB_MASK:
4152 return 12000000;
4153 case LIBIPW_OFDM_RATE_18MB_MASK:
4154 return 18000000;
4155 case LIBIPW_OFDM_RATE_24MB_MASK:
4156 return 24000000;
4157 case LIBIPW_OFDM_RATE_36MB_MASK:
4158 return 36000000;
4159 case LIBIPW_OFDM_RATE_48MB_MASK:
4160 return 48000000;
4161 case LIBIPW_OFDM_RATE_54MB_MASK:
4162 return 54000000;
4163 }
4164
4165 if (priv->ieee->mode == IEEE_B)
4166 return 11000000;
4167 else
4168 return 54000000;
4169 }
4170
4171 static u32 ipw_get_current_rate(struct ipw_priv *priv)
4172 {
4173 u32 rate, len = sizeof(rate);
4174 int err;
4175
4176 if (!(priv->status & STATUS_ASSOCIATED))
4177 return 0;
4178
4179 if (priv->tx_packets > IPW_REAL_RATE_RX_PACKET_THRESHOLD) {
4180 err = ipw_get_ordinal(priv, IPW_ORD_STAT_TX_CURR_RATE, &rate,
4181 &len);
4182 if (err) {
4183 IPW_DEBUG_INFO("failed querying ordinals.\n");
4184 return 0;
4185 }
4186 } else
4187 return ipw_get_max_rate(priv);
4188
4189 switch (rate) {
4190 case IPW_TX_RATE_1MB:
4191 return 1000000;
4192 case IPW_TX_RATE_2MB:
4193 return 2000000;
4194 case IPW_TX_RATE_5MB:
4195 return 5500000;
4196 case IPW_TX_RATE_6MB:
4197 return 6000000;
4198 case IPW_TX_RATE_9MB:
4199 return 9000000;
4200 case IPW_TX_RATE_11MB:
4201 return 11000000;
4202 case IPW_TX_RATE_12MB:
4203 return 12000000;
4204 case IPW_TX_RATE_18MB:
4205 return 18000000;
4206 case IPW_TX_RATE_24MB:
4207 return 24000000;
4208 case IPW_TX_RATE_36MB:
4209 return 36000000;
4210 case IPW_TX_RATE_48MB:
4211 return 48000000;
4212 case IPW_TX_RATE_54MB:
4213 return 54000000;
4214 }
4215
4216 return 0;
4217 }
4218
4219 #define IPW_STATS_INTERVAL (2 * HZ)
4220 static void ipw_gather_stats(struct ipw_priv *priv)
4221 {
4222 u32 rx_err, rx_err_delta, rx_packets_delta;
4223 u32 tx_failures, tx_failures_delta, tx_packets_delta;
4224 u32 missed_beacons_percent, missed_beacons_delta;
4225 u32 quality = 0;
4226 u32 len = sizeof(u32);
4227 s16 rssi;
4228 u32 beacon_quality, signal_quality, tx_quality, rx_quality,
4229 rate_quality;
4230 u32 max_rate;
4231
4232 if (!(priv->status & STATUS_ASSOCIATED)) {
4233 priv->quality = 0;
4234 return;
4235 }
4236
4237 /* Update the statistics */
4238 ipw_get_ordinal(priv, IPW_ORD_STAT_MISSED_BEACONS,
4239 &priv->missed_beacons, &len);
4240 missed_beacons_delta = priv->missed_beacons - priv->last_missed_beacons;
4241 priv->last_missed_beacons = priv->missed_beacons;
4242 if (priv->assoc_request.beacon_interval) {
4243 missed_beacons_percent = missed_beacons_delta *
4244 (HZ * le16_to_cpu(priv->assoc_request.beacon_interval)) /
4245 (IPW_STATS_INTERVAL * 10);
4246 } else {
4247 missed_beacons_percent = 0;
4248 }
4249 average_add(&priv->average_missed_beacons, missed_beacons_percent);
4250
4251 ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC, &rx_err, &len);
4252 rx_err_delta = rx_err - priv->last_rx_err;
4253 priv->last_rx_err = rx_err;
4254
4255 ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE, &tx_failures, &len);
4256 tx_failures_delta = tx_failures - priv->last_tx_failures;
4257 priv->last_tx_failures = tx_failures;
4258
4259 rx_packets_delta = priv->rx_packets - priv->last_rx_packets;
4260 priv->last_rx_packets = priv->rx_packets;
4261
4262 tx_packets_delta = priv->tx_packets - priv->last_tx_packets;
4263 priv->last_tx_packets = priv->tx_packets;
4264
4265 /* Calculate quality based on the following:
4266 *
4267 * Missed beacon: 100% = 0, 0% = 70% missed
4268 * Rate: 60% = 1Mbs, 100% = Max
4269 * Rx and Tx errors represent a straight % of total Rx/Tx
4270 * RSSI: 100% = > -50, 0% = < -80
4271 * Rx errors: 100% = 0, 0% = 50% missed
4272 *
4273 * The lowest computed quality is used.
4274 *
4275 */
4276 #define BEACON_THRESHOLD 5
4277 beacon_quality = 100 - missed_beacons_percent;
4278 if (beacon_quality < BEACON_THRESHOLD)
4279 beacon_quality = 0;
4280 else
4281 beacon_quality = (beacon_quality - BEACON_THRESHOLD) * 100 /
4282 (100 - BEACON_THRESHOLD);
4283 IPW_DEBUG_STATS("Missed beacon: %3d%% (%d%%)\n",
4284 beacon_quality, missed_beacons_percent);
4285
4286 priv->last_rate = ipw_get_current_rate(priv);
4287 max_rate = ipw_get_max_rate(priv);
4288 rate_quality = priv->last_rate * 40 / max_rate + 60;
4289 IPW_DEBUG_STATS("Rate quality : %3d%% (%dMbs)\n",
4290 rate_quality, priv->last_rate / 1000000);
4291
4292 if (rx_packets_delta > 100 && rx_packets_delta + rx_err_delta)
4293 rx_quality = 100 - (rx_err_delta * 100) /
4294 (rx_packets_delta + rx_err_delta);
4295 else
4296 rx_quality = 100;
4297 IPW_DEBUG_STATS("Rx quality : %3d%% (%u errors, %u packets)\n",
4298 rx_quality, rx_err_delta, rx_packets_delta);
4299
4300 if (tx_packets_delta > 100 && tx_packets_delta + tx_failures_delta)
4301 tx_quality = 100 - (tx_failures_delta * 100) /
4302 (tx_packets_delta + tx_failures_delta);
4303 else
4304 tx_quality = 100;
4305 IPW_DEBUG_STATS("Tx quality : %3d%% (%u errors, %u packets)\n",
4306 tx_quality, tx_failures_delta, tx_packets_delta);
4307
4308 rssi = priv->exp_avg_rssi;
4309 signal_quality =
4310 (100 *
4311 (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) *
4312 (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) -
4313 (priv->ieee->perfect_rssi - rssi) *
4314 (15 * (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) +
4315 62 * (priv->ieee->perfect_rssi - rssi))) /
4316 ((priv->ieee->perfect_rssi - priv->ieee->worst_rssi) *
4317 (priv->ieee->perfect_rssi - priv->ieee->worst_rssi));
4318 if (signal_quality > 100)
4319 signal_quality = 100;
4320 else if (signal_quality < 1)
4321 signal_quality = 0;
4322
4323 IPW_DEBUG_STATS("Signal level : %3d%% (%d dBm)\n",
4324 signal_quality, rssi);
4325
4326 quality = min(rx_quality, signal_quality);
4327 quality = min(tx_quality, quality);
4328 quality = min(rate_quality, quality);
4329 quality = min(beacon_quality, quality);
4330 if (quality == beacon_quality)
4331 IPW_DEBUG_STATS("Quality (%d%%): Clamped to missed beacons.\n",
4332 quality);
4333 if (quality == rate_quality)
4334 IPW_DEBUG_STATS("Quality (%d%%): Clamped to rate quality.\n",
4335 quality);
4336 if (quality == tx_quality)
4337 IPW_DEBUG_STATS("Quality (%d%%): Clamped to Tx quality.\n",
4338 quality);
4339 if (quality == rx_quality)
4340 IPW_DEBUG_STATS("Quality (%d%%): Clamped to Rx quality.\n",
4341 quality);
4342 if (quality == signal_quality)
4343 IPW_DEBUG_STATS("Quality (%d%%): Clamped to signal quality.\n",
4344 quality);
4345
4346 priv->quality = quality;
4347
4348 queue_delayed_work(priv->workqueue, &priv->gather_stats,
4349 IPW_STATS_INTERVAL);
4350 }
4351
4352 static void ipw_bg_gather_stats(struct work_struct *work)
4353 {
4354 struct ipw_priv *priv =
4355 container_of(work, struct ipw_priv, gather_stats.work);
4356 mutex_lock(&priv->mutex);
4357 ipw_gather_stats(priv);
4358 mutex_unlock(&priv->mutex);
4359 }
4360
4361 /* Missed beacon behavior:
4362 * 1st missed -> roaming_threshold, just wait, don't do any scan/roam.
4363 * roaming_threshold -> disassociate_threshold, scan and roam for better signal.
4364 * Above disassociate threshold, give up and stop scanning.
4365 * Roaming is disabled if disassociate_threshold <= roaming_threshold */
4366 static void ipw_handle_missed_beacon(struct ipw_priv *priv,
4367 int missed_count)
4368 {
4369 priv->notif_missed_beacons = missed_count;
4370
4371 if (missed_count > priv->disassociate_threshold &&
4372 priv->status & STATUS_ASSOCIATED) {
4373 /* If associated and we've hit the missed
4374 * beacon threshold, disassociate, turn
4375 * off roaming, and abort any active scans */
4376 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
4377 IPW_DL_STATE | IPW_DL_ASSOC,
4378 "Missed beacon: %d - disassociate\n", missed_count);
4379 priv->status &= ~STATUS_ROAMING;
4380 if (priv->status & STATUS_SCANNING) {
4381 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
4382 IPW_DL_STATE,
4383 "Aborting scan with missed beacon.\n");
4384 queue_work(priv->workqueue, &priv->abort_scan);
4385 }
4386
4387 queue_work(priv->workqueue, &priv->disassociate);
4388 return;
4389 }
4390
4391 if (priv->status & STATUS_ROAMING) {
4392 /* If we are currently roaming, then just
4393 * print a debug statement... */
4394 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4395 "Missed beacon: %d - roam in progress\n",
4396 missed_count);
4397 return;
4398 }
4399
4400 if (roaming &&
4401 (missed_count > priv->roaming_threshold &&
4402 missed_count <= priv->disassociate_threshold)) {
4403 /* If we are not already roaming, set the ROAM
4404 * bit in the status and kick off a scan.
4405 * This can happen several times before we reach
4406 * disassociate_threshold. */
4407 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4408 "Missed beacon: %d - initiate "
4409 "roaming\n", missed_count);
4410 if (!(priv->status & STATUS_ROAMING)) {
4411 priv->status |= STATUS_ROAMING;
4412 if (!(priv->status & STATUS_SCANNING))
4413 queue_delayed_work(priv->workqueue,
4414 &priv->request_scan, 0);
4415 }
4416 return;
4417 }
4418
4419 if (priv->status & STATUS_SCANNING &&
4420 missed_count > IPW_MB_SCAN_CANCEL_THRESHOLD) {
4421 /* Stop scan to keep fw from getting
4422 * stuck (only if we aren't roaming --
4423 * otherwise we'll never scan more than 2 or 3
4424 * channels..) */
4425 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | IPW_DL_STATE,
4426 "Aborting scan with missed beacon.\n");
4427 queue_work(priv->workqueue, &priv->abort_scan);
4428 }
4429
4430 IPW_DEBUG_NOTIF("Missed beacon: %d\n", missed_count);
4431 }
4432
4433 static void ipw_scan_event(struct work_struct *work)
4434 {
4435 union iwreq_data wrqu;
4436
4437 struct ipw_priv *priv =
4438 container_of(work, struct ipw_priv, scan_event.work);
4439
4440 wrqu.data.length = 0;
4441 wrqu.data.flags = 0;
4442 wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL);
4443 }
4444
4445 static void handle_scan_event(struct ipw_priv *priv)
4446 {
4447 /* Only userspace-requested scan completion events go out immediately */
4448 if (!priv->user_requested_scan) {
4449 if (!delayed_work_pending(&priv->scan_event))
4450 queue_delayed_work(priv->workqueue, &priv->scan_event,
4451 round_jiffies_relative(msecs_to_jiffies(4000)));
4452 } else {
4453 union iwreq_data wrqu;
4454
4455 priv->user_requested_scan = 0;
4456 cancel_delayed_work(&priv->scan_event);
4457
4458 wrqu.data.length = 0;
4459 wrqu.data.flags = 0;
4460 wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL);
4461 }
4462 }
4463
4464 /**
4465 * Handle host notification packet.
4466 * Called from interrupt routine
4467 */
4468 static void ipw_rx_notification(struct ipw_priv *priv,
4469 struct ipw_rx_notification *notif)
4470 {
4471 DECLARE_SSID_BUF(ssid);
4472 u16 size = le16_to_cpu(notif->size);
4473
4474 IPW_DEBUG_NOTIF("type = %i (%d bytes)\n", notif->subtype, size);
4475
4476 switch (notif->subtype) {
4477 case HOST_NOTIFICATION_STATUS_ASSOCIATED:{
4478 struct notif_association *assoc = &notif->u.assoc;
4479
4480 switch (assoc->state) {
4481 case CMAS_ASSOCIATED:{
4482 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4483 IPW_DL_ASSOC,
4484 "associated: '%s' %pM \n",
4485 print_ssid(ssid, priv->essid,
4486 priv->essid_len),
4487 priv->bssid);
4488
4489 switch (priv->ieee->iw_mode) {
4490 case IW_MODE_INFRA:
4491 memcpy(priv->ieee->bssid,
4492 priv->bssid, ETH_ALEN);
4493 break;
4494
4495 case IW_MODE_ADHOC:
4496 memcpy(priv->ieee->bssid,
4497 priv->bssid, ETH_ALEN);
4498
4499 /* clear out the station table */
4500 priv->num_stations = 0;
4501
4502 IPW_DEBUG_ASSOC
4503 ("queueing adhoc check\n");
4504 queue_delayed_work(priv->
4505 workqueue,
4506 &priv->
4507 adhoc_check,
4508 le16_to_cpu(priv->
4509 assoc_request.
4510 beacon_interval));
4511 break;
4512 }
4513
4514 priv->status &= ~STATUS_ASSOCIATING;
4515 priv->status |= STATUS_ASSOCIATED;
4516 queue_work(priv->workqueue,
4517 &priv->system_config);
4518
4519 #ifdef CONFIG_IPW2200_QOS
4520 #define IPW_GET_PACKET_STYPE(x) WLAN_FC_GET_STYPE( \
4521 le16_to_cpu(((struct ieee80211_hdr *)(x))->frame_control))
4522 if ((priv->status & STATUS_AUTH) &&
4523 (IPW_GET_PACKET_STYPE(&notif->u.raw)
4524 == IEEE80211_STYPE_ASSOC_RESP)) {
4525 if ((sizeof
4526 (struct
4527 libipw_assoc_response)
4528 <= size)
4529 && (size <= 2314)) {
4530 struct
4531 libipw_rx_stats
4532 stats = {
4533 .len = size - 1,
4534 };
4535
4536 IPW_DEBUG_QOS
4537 ("QoS Associate "
4538 "size %d\n", size);
4539 libipw_rx_mgt(priv->
4540 ieee,
4541 (struct
4542 libipw_hdr_4addr
4543 *)
4544 &notif->u.raw, &stats);
4545 }
4546 }
4547 #endif
4548
4549 schedule_work(&priv->link_up);
4550
4551 break;
4552 }
4553
4554 case CMAS_AUTHENTICATED:{
4555 if (priv->
4556 status & (STATUS_ASSOCIATED |
4557 STATUS_AUTH)) {
4558 struct notif_authenticate *auth
4559 = &notif->u.auth;
4560 IPW_DEBUG(IPW_DL_NOTIF |
4561 IPW_DL_STATE |
4562 IPW_DL_ASSOC,
4563 "deauthenticated: '%s' "
4564 "%pM"
4565 ": (0x%04X) - %s \n",
4566 print_ssid(ssid,
4567 priv->
4568 essid,
4569 priv->
4570 essid_len),
4571 priv->bssid,
4572 le16_to_cpu(auth->status),
4573 ipw_get_status_code
4574 (le16_to_cpu
4575 (auth->status)));
4576
4577 priv->status &=
4578 ~(STATUS_ASSOCIATING |
4579 STATUS_AUTH |
4580 STATUS_ASSOCIATED);
4581
4582 schedule_work(&priv->link_down);
4583 break;
4584 }
4585
4586 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4587 IPW_DL_ASSOC,
4588 "authenticated: '%s' %pM\n",
4589 print_ssid(ssid, priv->essid,
4590 priv->essid_len),
4591 priv->bssid);
4592 break;
4593 }
4594
4595 case CMAS_INIT:{
4596 if (priv->status & STATUS_AUTH) {
4597 struct
4598 libipw_assoc_response
4599 *resp;
4600 resp =
4601 (struct
4602 libipw_assoc_response
4603 *)&notif->u.raw;
4604 IPW_DEBUG(IPW_DL_NOTIF |
4605 IPW_DL_STATE |
4606 IPW_DL_ASSOC,
4607 "association failed (0x%04X): %s\n",
4608 le16_to_cpu(resp->status),
4609 ipw_get_status_code
4610 (le16_to_cpu
4611 (resp->status)));
4612 }
4613
4614 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4615 IPW_DL_ASSOC,
4616 "disassociated: '%s' %pM \n",
4617 print_ssid(ssid, priv->essid,
4618 priv->essid_len),
4619 priv->bssid);
4620
4621 priv->status &=
4622 ~(STATUS_DISASSOCIATING |
4623 STATUS_ASSOCIATING |
4624 STATUS_ASSOCIATED | STATUS_AUTH);
4625 if (priv->assoc_network
4626 && (priv->assoc_network->
4627 capability &
4628 WLAN_CAPABILITY_IBSS))
4629 ipw_remove_current_network
4630 (priv);
4631
4632 schedule_work(&priv->link_down);
4633
4634 break;
4635 }
4636
4637 case CMAS_RX_ASSOC_RESP:
4638 break;
4639
4640 default:
4641 IPW_ERROR("assoc: unknown (%d)\n",
4642 assoc->state);
4643 break;
4644 }
4645
4646 break;
4647 }
4648
4649 case HOST_NOTIFICATION_STATUS_AUTHENTICATE:{
4650 struct notif_authenticate *auth = &notif->u.auth;
4651 switch (auth->state) {
4652 case CMAS_AUTHENTICATED:
4653 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4654 "authenticated: '%s' %pM \n",
4655 print_ssid(ssid, priv->essid,
4656 priv->essid_len),
4657 priv->bssid);
4658 priv->status |= STATUS_AUTH;
4659 break;
4660
4661 case CMAS_INIT:
4662 if (priv->status & STATUS_AUTH) {
4663 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4664 IPW_DL_ASSOC,
4665 "authentication failed (0x%04X): %s\n",
4666 le16_to_cpu(auth->status),
4667 ipw_get_status_code(le16_to_cpu
4668 (auth->
4669 status)));
4670 }
4671 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4672 IPW_DL_ASSOC,
4673 "deauthenticated: '%s' %pM\n",
4674 print_ssid(ssid, priv->essid,
4675 priv->essid_len),
4676 priv->bssid);
4677
4678 priv->status &= ~(STATUS_ASSOCIATING |
4679 STATUS_AUTH |
4680 STATUS_ASSOCIATED);
4681
4682 schedule_work(&priv->link_down);
4683 break;
4684
4685 case CMAS_TX_AUTH_SEQ_1:
4686 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4687 IPW_DL_ASSOC, "AUTH_SEQ_1\n");
4688 break;
4689 case CMAS_RX_AUTH_SEQ_2:
4690 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4691 IPW_DL_ASSOC, "AUTH_SEQ_2\n");
4692 break;
4693 case CMAS_AUTH_SEQ_1_PASS:
4694 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4695 IPW_DL_ASSOC, "AUTH_SEQ_1_PASS\n");
4696 break;
4697 case CMAS_AUTH_SEQ_1_FAIL:
4698 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4699 IPW_DL_ASSOC, "AUTH_SEQ_1_FAIL\n");
4700 break;
4701 case CMAS_TX_AUTH_SEQ_3:
4702 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4703 IPW_DL_ASSOC, "AUTH_SEQ_3\n");
4704 break;
4705 case CMAS_RX_AUTH_SEQ_4:
4706 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4707 IPW_DL_ASSOC, "RX_AUTH_SEQ_4\n");
4708 break;
4709 case CMAS_AUTH_SEQ_2_PASS:
4710 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4711 IPW_DL_ASSOC, "AUTH_SEQ_2_PASS\n");
4712 break;
4713 case CMAS_AUTH_SEQ_2_FAIL:
4714 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4715 IPW_DL_ASSOC, "AUT_SEQ_2_FAIL\n");
4716 break;
4717 case CMAS_TX_ASSOC:
4718 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4719 IPW_DL_ASSOC, "TX_ASSOC\n");
4720 break;
4721 case CMAS_RX_ASSOC_RESP:
4722 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4723 IPW_DL_ASSOC, "RX_ASSOC_RESP\n");
4724
4725 break;
4726 case CMAS_ASSOCIATED:
4727 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4728 IPW_DL_ASSOC, "ASSOCIATED\n");
4729 break;
4730 default:
4731 IPW_DEBUG_NOTIF("auth: failure - %d\n",
4732 auth->state);
4733 break;
4734 }
4735 break;
4736 }
4737
4738 case HOST_NOTIFICATION_STATUS_SCAN_CHANNEL_RESULT:{
4739 struct notif_channel_result *x =
4740 &notif->u.channel_result;
4741
4742 if (size == sizeof(*x)) {
4743 IPW_DEBUG_SCAN("Scan result for channel %d\n",
4744 x->channel_num);
4745 } else {
4746 IPW_DEBUG_SCAN("Scan result of wrong size %d "
4747 "(should be %zd)\n",
4748 size, sizeof(*x));
4749 }
4750 break;
4751 }
4752
4753 case HOST_NOTIFICATION_STATUS_SCAN_COMPLETED:{
4754 struct notif_scan_complete *x = &notif->u.scan_complete;
4755 if (size == sizeof(*x)) {
4756 IPW_DEBUG_SCAN
4757 ("Scan completed: type %d, %d channels, "
4758 "%d status\n", x->scan_type,
4759 x->num_channels, x->status);
4760 } else {
4761 IPW_ERROR("Scan completed of wrong size %d "
4762 "(should be %zd)\n",
4763 size, sizeof(*x));
4764 }
4765
4766 priv->status &=
4767 ~(STATUS_SCANNING | STATUS_SCAN_ABORTING);
4768
4769 wake_up_interruptible(&priv->wait_state);
4770 cancel_delayed_work(&priv->scan_check);
4771
4772 if (priv->status & STATUS_EXIT_PENDING)
4773 break;
4774
4775 priv->ieee->scans++;
4776
4777 #ifdef CONFIG_IPW2200_MONITOR
4778 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
4779 priv->status |= STATUS_SCAN_FORCED;
4780 queue_delayed_work(priv->workqueue,
4781 &priv->request_scan, 0);
4782 break;
4783 }
4784 priv->status &= ~STATUS_SCAN_FORCED;
4785 #endif /* CONFIG_IPW2200_MONITOR */
4786
4787 /* Do queued direct scans first */
4788 if (priv->status & STATUS_DIRECT_SCAN_PENDING) {
4789 queue_delayed_work(priv->workqueue,
4790 &priv->request_direct_scan, 0);
4791 }
4792
4793 if (!(priv->status & (STATUS_ASSOCIATED |
4794 STATUS_ASSOCIATING |
4795 STATUS_ROAMING |
4796 STATUS_DISASSOCIATING)))
4797 queue_work(priv->workqueue, &priv->associate);
4798 else if (priv->status & STATUS_ROAMING) {
4799 if (x->status == SCAN_COMPLETED_STATUS_COMPLETE)
4800 /* If a scan completed and we are in roam mode, then
4801 * the scan that completed was the one requested as a
4802 * result of entering roam... so, schedule the
4803 * roam work */
4804 queue_work(priv->workqueue,
4805 &priv->roam);
4806 else
4807 /* Don't schedule if we aborted the scan */
4808 priv->status &= ~STATUS_ROAMING;
4809 } else if (priv->status & STATUS_SCAN_PENDING)
4810 queue_delayed_work(priv->workqueue,
4811 &priv->request_scan, 0);
4812 else if (priv->config & CFG_BACKGROUND_SCAN
4813 && priv->status & STATUS_ASSOCIATED)
4814 queue_delayed_work(priv->workqueue,
4815 &priv->request_scan,
4816 round_jiffies_relative(HZ));
4817
4818 /* Send an empty event to user space.
4819 * We don't send the received data on the event because
4820 * it would require us to do complex transcoding, and
4821 * we want to minimise the work done in the irq handler
4822 * Use a request to extract the data.
4823 * Also, we generate this even for any scan, regardless
4824 * on how the scan was initiated. User space can just
4825 * sync on periodic scan to get fresh data...
4826 * Jean II */
4827 if (x->status == SCAN_COMPLETED_STATUS_COMPLETE)
4828 handle_scan_event(priv);
4829 break;
4830 }
4831
4832 case HOST_NOTIFICATION_STATUS_FRAG_LENGTH:{
4833 struct notif_frag_length *x = &notif->u.frag_len;
4834
4835 if (size == sizeof(*x))
4836 IPW_ERROR("Frag length: %d\n",
4837 le16_to_cpu(x->frag_length));
4838 else
4839 IPW_ERROR("Frag length of wrong size %d "
4840 "(should be %zd)\n",
4841 size, sizeof(*x));
4842 break;
4843 }
4844
4845 case HOST_NOTIFICATION_STATUS_LINK_DETERIORATION:{
4846 struct notif_link_deterioration *x =
4847 &notif->u.link_deterioration;
4848
4849 if (size == sizeof(*x)) {
4850 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4851 "link deterioration: type %d, cnt %d\n",
4852 x->silence_notification_type,
4853 x->silence_count);
4854 memcpy(&priv->last_link_deterioration, x,
4855 sizeof(*x));
4856 } else {
4857 IPW_ERROR("Link Deterioration of wrong size %d "
4858 "(should be %zd)\n",
4859 size, sizeof(*x));
4860 }
4861 break;
4862 }
4863
4864 case HOST_NOTIFICATION_DINO_CONFIG_RESPONSE:{
4865 IPW_ERROR("Dino config\n");
4866 if (priv->hcmd
4867 && priv->hcmd->cmd != HOST_CMD_DINO_CONFIG)
4868 IPW_ERROR("Unexpected DINO_CONFIG_RESPONSE\n");
4869
4870 break;
4871 }
4872
4873 case HOST_NOTIFICATION_STATUS_BEACON_STATE:{
4874 struct notif_beacon_state *x = &notif->u.beacon_state;
4875 if (size != sizeof(*x)) {
4876 IPW_ERROR
4877 ("Beacon state of wrong size %d (should "
4878 "be %zd)\n", size, sizeof(*x));
4879 break;
4880 }
4881
4882 if (le32_to_cpu(x->state) ==
4883 HOST_NOTIFICATION_STATUS_BEACON_MISSING)
4884 ipw_handle_missed_beacon(priv,
4885 le32_to_cpu(x->
4886 number));
4887
4888 break;
4889 }
4890
4891 case HOST_NOTIFICATION_STATUS_TGI_TX_KEY:{
4892 struct notif_tgi_tx_key *x = &notif->u.tgi_tx_key;
4893 if (size == sizeof(*x)) {
4894 IPW_ERROR("TGi Tx Key: state 0x%02x sec type "
4895 "0x%02x station %d\n",
4896 x->key_state, x->security_type,
4897 x->station_index);
4898 break;
4899 }
4900
4901 IPW_ERROR
4902 ("TGi Tx Key of wrong size %d (should be %zd)\n",
4903 size, sizeof(*x));
4904 break;
4905 }
4906
4907 case HOST_NOTIFICATION_CALIB_KEEP_RESULTS:{
4908 struct notif_calibration *x = &notif->u.calibration;
4909
4910 if (size == sizeof(*x)) {
4911 memcpy(&priv->calib, x, sizeof(*x));
4912 IPW_DEBUG_INFO("TODO: Calibration\n");
4913 break;
4914 }
4915
4916 IPW_ERROR
4917 ("Calibration of wrong size %d (should be %zd)\n",
4918 size, sizeof(*x));
4919 break;
4920 }
4921
4922 case HOST_NOTIFICATION_NOISE_STATS:{
4923 if (size == sizeof(u32)) {
4924 priv->exp_avg_noise =
4925 exponential_average(priv->exp_avg_noise,
4926 (u8) (le32_to_cpu(notif->u.noise.value) & 0xff),
4927 DEPTH_NOISE);
4928 break;
4929 }
4930
4931 IPW_ERROR
4932 ("Noise stat is wrong size %d (should be %zd)\n",
4933 size, sizeof(u32));
4934 break;
4935 }
4936
4937 default:
4938 IPW_DEBUG_NOTIF("Unknown notification: "
4939 "subtype=%d,flags=0x%2x,size=%d\n",
4940 notif->subtype, notif->flags, size);
4941 }
4942 }
4943
4944 /**
4945 * Destroys all DMA structures and initialise them again
4946 *
4947 * @param priv
4948 * @return error code
4949 */
4950 static int ipw_queue_reset(struct ipw_priv *priv)
4951 {
4952 int rc = 0;
4953 /** @todo customize queue sizes */
4954 int nTx = 64, nTxCmd = 8;
4955 ipw_tx_queue_free(priv);
4956 /* Tx CMD queue */
4957 rc = ipw_queue_tx_init(priv, &priv->txq_cmd, nTxCmd,
4958 IPW_TX_CMD_QUEUE_READ_INDEX,
4959 IPW_TX_CMD_QUEUE_WRITE_INDEX,
4960 IPW_TX_CMD_QUEUE_BD_BASE,
4961 IPW_TX_CMD_QUEUE_BD_SIZE);
4962 if (rc) {
4963 IPW_ERROR("Tx Cmd queue init failed\n");
4964 goto error;
4965 }
4966 /* Tx queue(s) */
4967 rc = ipw_queue_tx_init(priv, &priv->txq[0], nTx,
4968 IPW_TX_QUEUE_0_READ_INDEX,
4969 IPW_TX_QUEUE_0_WRITE_INDEX,
4970 IPW_TX_QUEUE_0_BD_BASE, IPW_TX_QUEUE_0_BD_SIZE);
4971 if (rc) {
4972 IPW_ERROR("Tx 0 queue init failed\n");
4973 goto error;
4974 }
4975 rc = ipw_queue_tx_init(priv, &priv->txq[1], nTx,
4976 IPW_TX_QUEUE_1_READ_INDEX,
4977 IPW_TX_QUEUE_1_WRITE_INDEX,
4978 IPW_TX_QUEUE_1_BD_BASE, IPW_TX_QUEUE_1_BD_SIZE);
4979 if (rc) {
4980 IPW_ERROR("Tx 1 queue init failed\n");
4981 goto error;
4982 }
4983 rc = ipw_queue_tx_init(priv, &priv->txq[2], nTx,
4984 IPW_TX_QUEUE_2_READ_INDEX,
4985 IPW_TX_QUEUE_2_WRITE_INDEX,
4986 IPW_TX_QUEUE_2_BD_BASE, IPW_TX_QUEUE_2_BD_SIZE);
4987 if (rc) {
4988 IPW_ERROR("Tx 2 queue init failed\n");
4989 goto error;
4990 }
4991 rc = ipw_queue_tx_init(priv, &priv->txq[3], nTx,
4992 IPW_TX_QUEUE_3_READ_INDEX,
4993 IPW_TX_QUEUE_3_WRITE_INDEX,
4994 IPW_TX_QUEUE_3_BD_BASE, IPW_TX_QUEUE_3_BD_SIZE);
4995 if (rc) {
4996 IPW_ERROR("Tx 3 queue init failed\n");
4997 goto error;
4998 }
4999 /* statistics */
5000 priv->rx_bufs_min = 0;
5001 priv->rx_pend_max = 0;
5002 return rc;
5003
5004 error:
5005 ipw_tx_queue_free(priv);
5006 return rc;
5007 }
5008
5009 /**
5010 * Reclaim Tx queue entries no more used by NIC.
5011 *
5012 * When FW advances 'R' index, all entries between old and
5013 * new 'R' index need to be reclaimed. As result, some free space
5014 * forms. If there is enough free space (> low mark), wake Tx queue.
5015 *
5016 * @note Need to protect against garbage in 'R' index
5017 * @param priv
5018 * @param txq
5019 * @param qindex
5020 * @return Number of used entries remains in the queue
5021 */
5022 static int ipw_queue_tx_reclaim(struct ipw_priv *priv,
5023 struct clx2_tx_queue *txq, int qindex)
5024 {
5025 u32 hw_tail;
5026 int used;
5027 struct clx2_queue *q = &txq->q;
5028
5029 hw_tail = ipw_read32(priv, q->reg_r);
5030 if (hw_tail >= q->n_bd) {
5031 IPW_ERROR
5032 ("Read index for DMA queue (%d) is out of range [0-%d)\n",
5033 hw_tail, q->n_bd);
5034 goto done;
5035 }
5036 for (; q->last_used != hw_tail;
5037 q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) {
5038 ipw_queue_tx_free_tfd(priv, txq);
5039 priv->tx_packets++;
5040 }
5041 done:
5042 if ((ipw_tx_queue_space(q) > q->low_mark) &&
5043 (qindex >= 0))
5044 netif_wake_queue(priv->net_dev);
5045 used = q->first_empty - q->last_used;
5046 if (used < 0)
5047 used += q->n_bd;
5048
5049 return used;
5050 }
5051
5052 static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf,
5053 int len, int sync)
5054 {
5055 struct clx2_tx_queue *txq = &priv->txq_cmd;
5056 struct clx2_queue *q = &txq->q;
5057 struct tfd_frame *tfd;
5058
5059 if (ipw_tx_queue_space(q) < (sync ? 1 : 2)) {
5060 IPW_ERROR("No space for Tx\n");
5061 return -EBUSY;
5062 }
5063
5064 tfd = &txq->bd[q->first_empty];
5065 txq->txb[q->first_empty] = NULL;
5066
5067 memset(tfd, 0, sizeof(*tfd));
5068 tfd->control_flags.message_type = TX_HOST_COMMAND_TYPE;
5069 tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK;
5070 priv->hcmd_seq++;
5071 tfd->u.cmd.index = hcmd;
5072 tfd->u.cmd.length = len;
5073 memcpy(tfd->u.cmd.payload, buf, len);
5074 q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
5075 ipw_write32(priv, q->reg_w, q->first_empty);
5076 _ipw_read32(priv, 0x90);
5077
5078 return 0;
5079 }
5080
5081 /*
5082 * Rx theory of operation
5083 *
5084 * The host allocates 32 DMA target addresses and passes the host address
5085 * to the firmware at register IPW_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
5086 * 0 to 31
5087 *
5088 * Rx Queue Indexes
5089 * The host/firmware share two index registers for managing the Rx buffers.
5090 *
5091 * The READ index maps to the first position that the firmware may be writing
5092 * to -- the driver can read up to (but not including) this position and get
5093 * good data.
5094 * The READ index is managed by the firmware once the card is enabled.
5095 *
5096 * The WRITE index maps to the last position the driver has read from -- the
5097 * position preceding WRITE is the last slot the firmware can place a packet.
5098 *
5099 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
5100 * WRITE = READ.
5101 *
5102 * During initialization the host sets up the READ queue position to the first
5103 * INDEX position, and WRITE to the last (READ - 1 wrapped)
5104 *
5105 * When the firmware places a packet in a buffer it will advance the READ index
5106 * and fire the RX interrupt. The driver can then query the READ index and
5107 * process as many packets as possible, moving the WRITE index forward as it
5108 * resets the Rx queue buffers with new memory.
5109 *
5110 * The management in the driver is as follows:
5111 * + A list of pre-allocated SKBs is stored in ipw->rxq->rx_free. When
5112 * ipw->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
5113 * to replensish the ipw->rxq->rx_free.
5114 * + In ipw_rx_queue_replenish (scheduled) if 'processed' != 'read' then the
5115 * ipw->rxq is replenished and the READ INDEX is updated (updating the
5116 * 'processed' and 'read' driver indexes as well)
5117 * + A received packet is processed and handed to the kernel network stack,
5118 * detached from the ipw->rxq. The driver 'processed' index is updated.
5119 * + The Host/Firmware ipw->rxq is replenished at tasklet time from the rx_free
5120 * list. If there are no allocated buffers in ipw->rxq->rx_free, the READ
5121 * INDEX is not incremented and ipw->status(RX_STALLED) is set. If there
5122 * were enough free buffers and RX_STALLED is set it is cleared.
5123 *
5124 *
5125 * Driver sequence:
5126 *
5127 * ipw_rx_queue_alloc() Allocates rx_free
5128 * ipw_rx_queue_replenish() Replenishes rx_free list from rx_used, and calls
5129 * ipw_rx_queue_restock
5130 * ipw_rx_queue_restock() Moves available buffers from rx_free into Rx
5131 * queue, updates firmware pointers, and updates
5132 * the WRITE index. If insufficient rx_free buffers
5133 * are available, schedules ipw_rx_queue_replenish
5134 *
5135 * -- enable interrupts --
5136 * ISR - ipw_rx() Detach ipw_rx_mem_buffers from pool up to the
5137 * READ INDEX, detaching the SKB from the pool.
5138 * Moves the packet buffer from queue to rx_used.
5139 * Calls ipw_rx_queue_restock to refill any empty
5140 * slots.
5141 * ...
5142 *
5143 */
5144
5145 /*
5146 * If there are slots in the RX queue that need to be restocked,
5147 * and we have free pre-allocated buffers, fill the ranks as much
5148 * as we can pulling from rx_free.
5149 *
5150 * This moves the 'write' index forward to catch up with 'processed', and
5151 * also updates the memory address in the firmware to reference the new
5152 * target buffer.
5153 */
5154 static void ipw_rx_queue_restock(struct ipw_priv *priv)
5155 {
5156 struct ipw_rx_queue *rxq = priv->rxq;
5157 struct list_head *element;
5158 struct ipw_rx_mem_buffer *rxb;
5159 unsigned long flags;
5160 int write;
5161
5162 spin_lock_irqsave(&rxq->lock, flags);
5163 write = rxq->write;
5164 while ((ipw_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
5165 element = rxq->rx_free.next;
5166 rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
5167 list_del(element);
5168
5169 ipw_write32(priv, IPW_RFDS_TABLE_LOWER + rxq->write * RFD_SIZE,
5170 rxb->dma_addr);
5171 rxq->queue[rxq->write] = rxb;
5172 rxq->write = (rxq->write + 1) % RX_QUEUE_SIZE;
5173 rxq->free_count--;
5174 }
5175 spin_unlock_irqrestore(&rxq->lock, flags);
5176
5177 /* If the pre-allocated buffer pool is dropping low, schedule to
5178 * refill it */
5179 if (rxq->free_count <= RX_LOW_WATERMARK)
5180 queue_work(priv->workqueue, &priv->rx_replenish);
5181
5182 /* If we've added more space for the firmware to place data, tell it */
5183 if (write != rxq->write)
5184 ipw_write32(priv, IPW_RX_WRITE_INDEX, rxq->write);
5185 }
5186
5187 /*
5188 * Move all used packet from rx_used to rx_free, allocating a new SKB for each.
5189 * Also restock the Rx queue via ipw_rx_queue_restock.
5190 *
5191 * This is called as a scheduled work item (except for during intialization)
5192 */
5193 static void ipw_rx_queue_replenish(void *data)
5194 {
5195 struct ipw_priv *priv = data;
5196 struct ipw_rx_queue *rxq = priv->rxq;
5197 struct list_head *element;
5198 struct ipw_rx_mem_buffer *rxb;
5199 unsigned long flags;
5200
5201 spin_lock_irqsave(&rxq->lock, flags);
5202 while (!list_empty(&rxq->rx_used)) {
5203 element = rxq->rx_used.next;
5204 rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
5205 rxb->skb = alloc_skb(IPW_RX_BUF_SIZE, GFP_ATOMIC);
5206 if (!rxb->skb) {
5207 printk(KERN_CRIT "%s: Can not allocate SKB buffers.\n",
5208 priv->net_dev->name);
5209 /* We don't reschedule replenish work here -- we will
5210 * call the restock method and if it still needs
5211 * more buffers it will schedule replenish */
5212 break;
5213 }
5214 list_del(element);
5215
5216 rxb->dma_addr =
5217 pci_map_single(priv->pci_dev, rxb->skb->data,
5218 IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
5219
5220 list_add_tail(&rxb->list, &rxq->rx_free);
5221 rxq->free_count++;
5222 }
5223 spin_unlock_irqrestore(&rxq->lock, flags);
5224
5225 ipw_rx_queue_restock(priv);
5226 }
5227
5228 static void ipw_bg_rx_queue_replenish(struct work_struct *work)
5229 {
5230 struct ipw_priv *priv =
5231 container_of(work, struct ipw_priv, rx_replenish);
5232 mutex_lock(&priv->mutex);
5233 ipw_rx_queue_replenish(priv);
5234 mutex_unlock(&priv->mutex);
5235 }
5236
5237 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
5238 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
5239 * This free routine walks the list of POOL entries and if SKB is set to
5240 * non NULL it is unmapped and freed
5241 */
5242 static void ipw_rx_queue_free(struct ipw_priv *priv, struct ipw_rx_queue *rxq)
5243 {
5244 int i;
5245
5246 if (!rxq)
5247 return;
5248
5249 for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
5250 if (rxq->pool[i].skb != NULL) {
5251 pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr,
5252 IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
5253 dev_kfree_skb(rxq->pool[i].skb);
5254 }
5255 }
5256
5257 kfree(rxq);
5258 }
5259
5260 static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *priv)
5261 {
5262 struct ipw_rx_queue *rxq;
5263 int i;
5264
5265 rxq = kzalloc(sizeof(*rxq), GFP_KERNEL);
5266 if (unlikely(!rxq)) {
5267 IPW_ERROR("memory allocation failed\n");
5268 return NULL;
5269 }
5270 spin_lock_init(&rxq->lock);
5271 INIT_LIST_HEAD(&rxq->rx_free);
5272 INIT_LIST_HEAD(&rxq->rx_used);
5273
5274 /* Fill the rx_used queue with _all_ of the Rx buffers */
5275 for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
5276 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
5277
5278 /* Set us so that we have processed and used all buffers, but have
5279 * not restocked the Rx queue with fresh buffers */
5280 rxq->read = rxq->write = 0;
5281 rxq->free_count = 0;
5282
5283 return rxq;
5284 }
5285
5286 static int ipw_is_rate_in_mask(struct ipw_priv *priv, int ieee_mode, u8 rate)
5287 {
5288 rate &= ~LIBIPW_BASIC_RATE_MASK;
5289 if (ieee_mode == IEEE_A) {
5290 switch (rate) {
5291 case LIBIPW_OFDM_RATE_6MB:
5292 return priv->rates_mask & LIBIPW_OFDM_RATE_6MB_MASK ?
5293 1 : 0;
5294 case LIBIPW_OFDM_RATE_9MB:
5295 return priv->rates_mask & LIBIPW_OFDM_RATE_9MB_MASK ?
5296 1 : 0;
5297 case LIBIPW_OFDM_RATE_12MB:
5298 return priv->
5299 rates_mask & LIBIPW_OFDM_RATE_12MB_MASK ? 1 : 0;
5300 case LIBIPW_OFDM_RATE_18MB:
5301 return priv->
5302 rates_mask & LIBIPW_OFDM_RATE_18MB_MASK ? 1 : 0;
5303 case LIBIPW_OFDM_RATE_24MB:
5304 return priv->
5305 rates_mask & LIBIPW_OFDM_RATE_24MB_MASK ? 1 : 0;
5306 case LIBIPW_OFDM_RATE_36MB:
5307 return priv->
5308 rates_mask & LIBIPW_OFDM_RATE_36MB_MASK ? 1 : 0;
5309 case LIBIPW_OFDM_RATE_48MB:
5310 return priv->
5311 rates_mask & LIBIPW_OFDM_RATE_48MB_MASK ? 1 : 0;
5312 case LIBIPW_OFDM_RATE_54MB:
5313 return priv->
5314 rates_mask & LIBIPW_OFDM_RATE_54MB_MASK ? 1 : 0;
5315 default:
5316 return 0;
5317 }
5318 }
5319
5320 /* B and G mixed */
5321 switch (rate) {
5322 case LIBIPW_CCK_RATE_1MB:
5323 return priv->rates_mask & LIBIPW_CCK_RATE_1MB_MASK ? 1 : 0;
5324 case LIBIPW_CCK_RATE_2MB:
5325 return priv->rates_mask & LIBIPW_CCK_RATE_2MB_MASK ? 1 : 0;
5326 case LIBIPW_CCK_RATE_5MB:
5327 return priv->rates_mask & LIBIPW_CCK_RATE_5MB_MASK ? 1 : 0;
5328 case LIBIPW_CCK_RATE_11MB:
5329 return priv->rates_mask & LIBIPW_CCK_RATE_11MB_MASK ? 1 : 0;
5330 }
5331
5332 /* If we are limited to B modulations, bail at this point */
5333 if (ieee_mode == IEEE_B)
5334 return 0;
5335
5336 /* G */
5337 switch (rate) {
5338 case LIBIPW_OFDM_RATE_6MB:
5339 return priv->rates_mask & LIBIPW_OFDM_RATE_6MB_MASK ? 1 : 0;
5340 case LIBIPW_OFDM_RATE_9MB:
5341 return priv->rates_mask & LIBIPW_OFDM_RATE_9MB_MASK ? 1 : 0;
5342 case LIBIPW_OFDM_RATE_12MB:
5343 return priv->rates_mask & LIBIPW_OFDM_RATE_12MB_MASK ? 1 : 0;
5344 case LIBIPW_OFDM_RATE_18MB:
5345 return priv->rates_mask & LIBIPW_OFDM_RATE_18MB_MASK ? 1 : 0;
5346 case LIBIPW_OFDM_RATE_24MB:
5347 return priv->rates_mask & LIBIPW_OFDM_RATE_24MB_MASK ? 1 : 0;
5348 case LIBIPW_OFDM_RATE_36MB:
5349 return priv->rates_mask & LIBIPW_OFDM_RATE_36MB_MASK ? 1 : 0;
5350 case LIBIPW_OFDM_RATE_48MB:
5351 return priv->rates_mask & LIBIPW_OFDM_RATE_48MB_MASK ? 1 : 0;
5352 case LIBIPW_OFDM_RATE_54MB:
5353 return priv->rates_mask & LIBIPW_OFDM_RATE_54MB_MASK ? 1 : 0;
5354 }
5355
5356 return 0;
5357 }
5358
5359 static int ipw_compatible_rates(struct ipw_priv *priv,
5360 const struct libipw_network *network,
5361 struct ipw_supported_rates *rates)
5362 {
5363 int num_rates, i;
5364
5365 memset(rates, 0, sizeof(*rates));
5366 num_rates = min(network->rates_len, (u8) IPW_MAX_RATES);
5367 rates->num_rates = 0;
5368 for (i = 0; i < num_rates; i++) {
5369 if (!ipw_is_rate_in_mask(priv, network->mode,
5370 network->rates[i])) {
5371
5372 if (network->rates[i] & LIBIPW_BASIC_RATE_MASK) {
5373 IPW_DEBUG_SCAN("Adding masked mandatory "
5374 "rate %02X\n",
5375 network->rates[i]);
5376 rates->supported_rates[rates->num_rates++] =
5377 network->rates[i];
5378 continue;
5379 }
5380
5381 IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n",
5382 network->rates[i], priv->rates_mask);
5383 continue;
5384 }
5385
5386 rates->supported_rates[rates->num_rates++] = network->rates[i];
5387 }
5388
5389 num_rates = min(network->rates_ex_len,
5390 (u8) (IPW_MAX_RATES - num_rates));
5391 for (i = 0; i < num_rates; i++) {
5392 if (!ipw_is_rate_in_mask(priv, network->mode,
5393 network->rates_ex[i])) {
5394 if (network->rates_ex[i] & LIBIPW_BASIC_RATE_MASK) {
5395 IPW_DEBUG_SCAN("Adding masked mandatory "
5396 "rate %02X\n",
5397 network->rates_ex[i]);
5398 rates->supported_rates[rates->num_rates++] =
5399 network->rates[i];
5400 continue;
5401 }
5402
5403 IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n",
5404 network->rates_ex[i], priv->rates_mask);
5405 continue;
5406 }
5407
5408 rates->supported_rates[rates->num_rates++] =
5409 network->rates_ex[i];
5410 }
5411
5412 return 1;
5413 }
5414
5415 static void ipw_copy_rates(struct ipw_supported_rates *dest,
5416 const struct ipw_supported_rates *src)
5417 {
5418 u8 i;
5419 for (i = 0; i < src->num_rates; i++)
5420 dest->supported_rates[i] = src->supported_rates[i];
5421 dest->num_rates = src->num_rates;
5422 }
5423
5424 /* TODO: Look at sniffed packets in the air to determine if the basic rate
5425 * mask should ever be used -- right now all callers to add the scan rates are
5426 * set with the modulation = CCK, so BASIC_RATE_MASK is never set... */
5427 static void ipw_add_cck_scan_rates(struct ipw_supported_rates *rates,
5428 u8 modulation, u32 rate_mask)
5429 {
5430 u8 basic_mask = (LIBIPW_OFDM_MODULATION == modulation) ?
5431 LIBIPW_BASIC_RATE_MASK : 0;
5432
5433 if (rate_mask & LIBIPW_CCK_RATE_1MB_MASK)
5434 rates->supported_rates[rates->num_rates++] =
5435 LIBIPW_BASIC_RATE_MASK | LIBIPW_CCK_RATE_1MB;
5436
5437 if (rate_mask & LIBIPW_CCK_RATE_2MB_MASK)
5438 rates->supported_rates[rates->num_rates++] =
5439 LIBIPW_BASIC_RATE_MASK | LIBIPW_CCK_RATE_2MB;
5440
5441 if (rate_mask & LIBIPW_CCK_RATE_5MB_MASK)
5442 rates->supported_rates[rates->num_rates++] = basic_mask |
5443 LIBIPW_CCK_RATE_5MB;
5444
5445 if (rate_mask & LIBIPW_CCK_RATE_11MB_MASK)
5446 rates->supported_rates[rates->num_rates++] = basic_mask |
5447 LIBIPW_CCK_RATE_11MB;
5448 }
5449
5450 static void ipw_add_ofdm_scan_rates(struct ipw_supported_rates *rates,
5451 u8 modulation, u32 rate_mask)
5452 {
5453 u8 basic_mask = (LIBIPW_OFDM_MODULATION == modulation) ?
5454 LIBIPW_BASIC_RATE_MASK : 0;
5455
5456 if (rate_mask & LIBIPW_OFDM_RATE_6MB_MASK)
5457 rates->supported_rates[rates->num_rates++] = basic_mask |
5458 LIBIPW_OFDM_RATE_6MB;
5459
5460 if (rate_mask & LIBIPW_OFDM_RATE_9MB_MASK)
5461 rates->supported_rates[rates->num_rates++] =
5462 LIBIPW_OFDM_RATE_9MB;
5463
5464 if (rate_mask & LIBIPW_OFDM_RATE_12MB_MASK)
5465 rates->supported_rates[rates->num_rates++] = basic_mask |
5466 LIBIPW_OFDM_RATE_12MB;
5467
5468 if (rate_mask & LIBIPW_OFDM_RATE_18MB_MASK)
5469 rates->supported_rates[rates->num_rates++] =
5470 LIBIPW_OFDM_RATE_18MB;
5471
5472 if (rate_mask & LIBIPW_OFDM_RATE_24MB_MASK)
5473 rates->supported_rates[rates->num_rates++] = basic_mask |
5474 LIBIPW_OFDM_RATE_24MB;
5475
5476 if (rate_mask & LIBIPW_OFDM_RATE_36MB_MASK)
5477 rates->supported_rates[rates->num_rates++] =
5478 LIBIPW_OFDM_RATE_36MB;
5479
5480 if (rate_mask & LIBIPW_OFDM_RATE_48MB_MASK)
5481 rates->supported_rates[rates->num_rates++] =
5482 LIBIPW_OFDM_RATE_48MB;
5483
5484 if (rate_mask & LIBIPW_OFDM_RATE_54MB_MASK)
5485 rates->supported_rates[rates->num_rates++] =
5486 LIBIPW_OFDM_RATE_54MB;
5487 }
5488
5489 struct ipw_network_match {
5490 struct libipw_network *network;
5491 struct ipw_supported_rates rates;
5492 };
5493
5494 static int ipw_find_adhoc_network(struct ipw_priv *priv,
5495 struct ipw_network_match *match,
5496 struct libipw_network *network,
5497 int roaming)
5498 {
5499 struct ipw_supported_rates rates;
5500 DECLARE_SSID_BUF(ssid);
5501
5502 /* Verify that this network's capability is compatible with the
5503 * current mode (AdHoc or Infrastructure) */
5504 if ((priv->ieee->iw_mode == IW_MODE_ADHOC &&
5505 !(network->capability & WLAN_CAPABILITY_IBSS))) {
5506 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded due to "
5507 "capability mismatch.\n",
5508 print_ssid(ssid, network->ssid,
5509 network->ssid_len),
5510 network->bssid);
5511 return 0;
5512 }
5513
5514 if (unlikely(roaming)) {
5515 /* If we are roaming, then ensure check if this is a valid
5516 * network to try and roam to */
5517 if ((network->ssid_len != match->network->ssid_len) ||
5518 memcmp(network->ssid, match->network->ssid,
5519 network->ssid_len)) {
5520 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded "
5521 "because of non-network ESSID.\n",
5522 print_ssid(ssid, network->ssid,
5523 network->ssid_len),
5524 network->bssid);
5525 return 0;
5526 }
5527 } else {
5528 /* If an ESSID has been configured then compare the broadcast
5529 * ESSID to ours */
5530 if ((priv->config & CFG_STATIC_ESSID) &&
5531 ((network->ssid_len != priv->essid_len) ||
5532 memcmp(network->ssid, priv->essid,
5533 min(network->ssid_len, priv->essid_len)))) {
5534 char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
5535
5536 strncpy(escaped,
5537 print_ssid(ssid, network->ssid,
5538 network->ssid_len),
5539 sizeof(escaped));
5540 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded "
5541 "because of ESSID mismatch: '%s'.\n",
5542 escaped, network->bssid,
5543 print_ssid(ssid, priv->essid,
5544 priv->essid_len));
5545 return 0;
5546 }
5547 }
5548
5549 /* If the old network rate is better than this one, don't bother
5550 * testing everything else. */
5551
5552 if (network->time_stamp[0] < match->network->time_stamp[0]) {
5553 IPW_DEBUG_MERGE("Network '%s excluded because newer than "
5554 "current network.\n",
5555 print_ssid(ssid, match->network->ssid,
5556 match->network->ssid_len));
5557 return 0;
5558 } else if (network->time_stamp[1] < match->network->time_stamp[1]) {
5559 IPW_DEBUG_MERGE("Network '%s excluded because newer than "
5560 "current network.\n",
5561 print_ssid(ssid, match->network->ssid,
5562 match->network->ssid_len));
5563 return 0;
5564 }
5565
5566 /* Now go through and see if the requested network is valid... */
5567 if (priv->ieee->scan_age != 0 &&
5568 time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) {
5569 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded "
5570 "because of age: %ums.\n",
5571 print_ssid(ssid, network->ssid,
5572 network->ssid_len),
5573 network->bssid,
5574 jiffies_to_msecs(jiffies -
5575 network->last_scanned));
5576 return 0;
5577 }
5578
5579 if ((priv->config & CFG_STATIC_CHANNEL) &&
5580 (network->channel != priv->channel)) {
5581 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded "
5582 "because of channel mismatch: %d != %d.\n",
5583 print_ssid(ssid, network->ssid,
5584 network->ssid_len),
5585 network->bssid,
5586 network->channel, priv->channel);
5587 return 0;
5588 }
5589
5590 /* Verify privacy compatability */
5591 if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) !=
5592 ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) {
5593 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded "
5594 "because of privacy mismatch: %s != %s.\n",
5595 print_ssid(ssid, network->ssid,
5596 network->ssid_len),
5597 network->bssid,
5598 priv->
5599 capability & CAP_PRIVACY_ON ? "on" : "off",
5600 network->
5601 capability & WLAN_CAPABILITY_PRIVACY ? "on" :
5602 "off");
5603 return 0;
5604 }
5605
5606 if (!memcmp(network->bssid, priv->bssid, ETH_ALEN)) {
5607 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded "
5608 "because of the same BSSID match: %pM"
5609 ".\n", print_ssid(ssid, network->ssid,
5610 network->ssid_len),
5611 network->bssid,
5612 priv->bssid);
5613 return 0;
5614 }
5615
5616 /* Filter out any incompatible freq / mode combinations */
5617 if (!libipw_is_valid_mode(priv->ieee, network->mode)) {
5618 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded "
5619 "because of invalid frequency/mode "
5620 "combination.\n",
5621 print_ssid(ssid, network->ssid,
5622 network->ssid_len),
5623 network->bssid);
5624 return 0;
5625 }
5626
5627 /* Ensure that the rates supported by the driver are compatible with
5628 * this AP, including verification of basic rates (mandatory) */
5629 if (!ipw_compatible_rates(priv, network, &rates)) {
5630 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded "
5631 "because configured rate mask excludes "
5632 "AP mandatory rate.\n",
5633 print_ssid(ssid, network->ssid,
5634 network->ssid_len),
5635 network->bssid);
5636 return 0;
5637 }
5638
5639 if (rates.num_rates == 0) {
5640 IPW_DEBUG_MERGE("Network '%s (%pM)' excluded "
5641 "because of no compatible rates.\n",
5642 print_ssid(ssid, network->ssid,
5643 network->ssid_len),
5644 network->bssid);
5645 return 0;
5646 }
5647
5648 /* TODO: Perform any further minimal comparititive tests. We do not
5649 * want to put too much policy logic here; intelligent scan selection
5650 * should occur within a generic IEEE 802.11 user space tool. */
5651
5652 /* Set up 'new' AP to this network */
5653 ipw_copy_rates(&match->rates, &rates);
5654 match->network = network;
5655 IPW_DEBUG_MERGE("Network '%s (%pM)' is a viable match.\n",
5656 print_ssid(ssid, network->ssid, network->ssid_len),
5657 network->bssid);
5658
5659 return 1;
5660 }
5661
5662 static void ipw_merge_adhoc_network(struct work_struct *work)
5663 {
5664 DECLARE_SSID_BUF(ssid);
5665 struct ipw_priv *priv =
5666 container_of(work, struct ipw_priv, merge_networks);
5667 struct libipw_network *network = NULL;
5668 struct ipw_network_match match = {
5669 .network = priv->assoc_network
5670 };
5671
5672 if ((priv->status & STATUS_ASSOCIATED) &&
5673 (priv->ieee->iw_mode == IW_MODE_ADHOC)) {
5674 /* First pass through ROAM process -- look for a better
5675 * network */
5676 unsigned long flags;
5677
5678 spin_lock_irqsave(&priv->ieee->lock, flags);
5679 list_for_each_entry(network, &priv->ieee->network_list, list) {
5680 if (network != priv->assoc_network)
5681 ipw_find_adhoc_network(priv, &match, network,
5682 1);
5683 }
5684 spin_unlock_irqrestore(&priv->ieee->lock, flags);
5685
5686 if (match.network == priv->assoc_network) {
5687 IPW_DEBUG_MERGE("No better ADHOC in this network to "
5688 "merge to.\n");
5689 return;
5690 }
5691
5692 mutex_lock(&priv->mutex);
5693 if ((priv->ieee->iw_mode == IW_MODE_ADHOC)) {
5694 IPW_DEBUG_MERGE("remove network %s\n",
5695 print_ssid(ssid, priv->essid,
5696 priv->essid_len));
5697 ipw_remove_current_network(priv);
5698 }
5699
5700 ipw_disassociate(priv);
5701 priv->assoc_network = match.network;
5702 mutex_unlock(&priv->mutex);
5703 return;
5704 }
5705 }
5706
5707 static int ipw_best_network(struct ipw_priv *priv,
5708 struct ipw_network_match *match,
5709 struct libipw_network *network, int roaming)
5710 {
5711 struct ipw_supported_rates rates;
5712 DECLARE_SSID_BUF(ssid);
5713
5714 /* Verify that this network's capability is compatible with the
5715 * current mode (AdHoc or Infrastructure) */
5716 if ((priv->ieee->iw_mode == IW_MODE_INFRA &&
5717 !(network->capability & WLAN_CAPABILITY_ESS)) ||
5718 (priv->ieee->iw_mode == IW_MODE_ADHOC &&
5719 !(network->capability & WLAN_CAPABILITY_IBSS))) {
5720 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded due to "
5721 "capability mismatch.\n",
5722 print_ssid(ssid, network->ssid,
5723 network->ssid_len),
5724 network->bssid);
5725 return 0;
5726 }
5727
5728 if (unlikely(roaming)) {
5729 /* If we are roaming, then ensure check if this is a valid
5730 * network to try and roam to */
5731 if ((network->ssid_len != match->network->ssid_len) ||
5732 memcmp(network->ssid, match->network->ssid,
5733 network->ssid_len)) {
5734 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded "
5735 "because of non-network ESSID.\n",
5736 print_ssid(ssid, network->ssid,
5737 network->ssid_len),
5738 network->bssid);
5739 return 0;
5740 }
5741 } else {
5742 /* If an ESSID has been configured then compare the broadcast
5743 * ESSID to ours */
5744 if ((priv->config & CFG_STATIC_ESSID) &&
5745 ((network->ssid_len != priv->essid_len) ||
5746 memcmp(network->ssid, priv->essid,
5747 min(network->ssid_len, priv->essid_len)))) {
5748 char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
5749 strncpy(escaped,
5750 print_ssid(ssid, network->ssid,
5751 network->ssid_len),
5752 sizeof(escaped));
5753 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded "
5754 "because of ESSID mismatch: '%s'.\n",
5755 escaped, network->bssid,
5756 print_ssid(ssid, priv->essid,
5757 priv->essid_len));
5758 return 0;
5759 }
5760 }
5761
5762 /* If the old network rate is better than this one, don't bother
5763 * testing everything else. */
5764 if (match->network && match->network->stats.rssi > network->stats.rssi) {
5765 char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
5766 strncpy(escaped,
5767 print_ssid(ssid, network->ssid, network->ssid_len),
5768 sizeof(escaped));
5769 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded because "
5770 "'%s (%pM)' has a stronger signal.\n",
5771 escaped, network->bssid,
5772 print_ssid(ssid, match->network->ssid,
5773 match->network->ssid_len),
5774 match->network->bssid);
5775 return 0;
5776 }
5777
5778 /* If this network has already had an association attempt within the
5779 * last 3 seconds, do not try and associate again... */
5780 if (network->last_associate &&
5781 time_after(network->last_associate + (HZ * 3UL), jiffies)) {
5782 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded "
5783 "because of storming (%ums since last "
5784 "assoc attempt).\n",
5785 print_ssid(ssid, network->ssid,
5786 network->ssid_len),
5787 network->bssid,
5788 jiffies_to_msecs(jiffies -
5789 network->last_associate));
5790 return 0;
5791 }
5792
5793 /* Now go through and see if the requested network is valid... */
5794 if (priv->ieee->scan_age != 0 &&
5795 time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) {
5796 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded "
5797 "because of age: %ums.\n",
5798 print_ssid(ssid, network->ssid,
5799 network->ssid_len),
5800 network->bssid,
5801 jiffies_to_msecs(jiffies -
5802 network->last_scanned));
5803 return 0;
5804 }
5805
5806 if ((priv->config & CFG_STATIC_CHANNEL) &&
5807 (network->channel != priv->channel)) {
5808 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded "
5809 "because of channel mismatch: %d != %d.\n",
5810 print_ssid(ssid, network->ssid,
5811 network->ssid_len),
5812 network->bssid,
5813 network->channel, priv->channel);
5814 return 0;
5815 }
5816
5817 /* Verify privacy compatability */
5818 if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) !=
5819 ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) {
5820 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded "
5821 "because of privacy mismatch: %s != %s.\n",
5822 print_ssid(ssid, network->ssid,
5823 network->ssid_len),
5824 network->bssid,
5825 priv->capability & CAP_PRIVACY_ON ? "on" :
5826 "off",
5827 network->capability &
5828 WLAN_CAPABILITY_PRIVACY ? "on" : "off");
5829 return 0;
5830 }
5831
5832 if ((priv->config & CFG_STATIC_BSSID) &&
5833 memcmp(network->bssid, priv->bssid, ETH_ALEN)) {
5834 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded "
5835 "because of BSSID mismatch: %pM.\n",
5836 print_ssid(ssid, network->ssid,
5837 network->ssid_len),
5838 network->bssid, priv->bssid);
5839 return 0;
5840 }
5841
5842 /* Filter out any incompatible freq / mode combinations */
5843 if (!libipw_is_valid_mode(priv->ieee, network->mode)) {
5844 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded "
5845 "because of invalid frequency/mode "
5846 "combination.\n",
5847 print_ssid(ssid, network->ssid,
5848 network->ssid_len),
5849 network->bssid);
5850 return 0;
5851 }
5852
5853 /* Filter out invalid channel in current GEO */
5854 if (!libipw_is_valid_channel(priv->ieee, network->channel)) {
5855 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded "
5856 "because of invalid channel in current GEO\n",
5857 print_ssid(ssid, network->ssid,
5858 network->ssid_len),
5859 network->bssid);
5860 return 0;
5861 }
5862
5863 /* Ensure that the rates supported by the driver are compatible with
5864 * this AP, including verification of basic rates (mandatory) */
5865 if (!ipw_compatible_rates(priv, network, &rates)) {
5866 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded "
5867 "because configured rate mask excludes "
5868 "AP mandatory rate.\n",
5869 print_ssid(ssid, network->ssid,
5870 network->ssid_len),
5871 network->bssid);
5872 return 0;
5873 }
5874
5875 if (rates.num_rates == 0) {
5876 IPW_DEBUG_ASSOC("Network '%s (%pM)' excluded "
5877 "because of no compatible rates.\n",
5878 print_ssid(ssid, network->ssid,
5879 network->ssid_len),
5880 network->bssid);
5881 return 0;
5882 }
5883
5884 /* TODO: Perform any further minimal comparititive tests. We do not
5885 * want to put too much policy logic here; intelligent scan selection
5886 * should occur within a generic IEEE 802.11 user space tool. */
5887
5888 /* Set up 'new' AP to this network */
5889 ipw_copy_rates(&match->rates, &rates);
5890 match->network = network;
5891
5892 IPW_DEBUG_ASSOC("Network '%s (%pM)' is a viable match.\n",
5893 print_ssid(ssid, network->ssid, network->ssid_len),
5894 network->bssid);
5895
5896 return 1;
5897 }
5898
5899 static void ipw_adhoc_create(struct ipw_priv *priv,
5900 struct libipw_network *network)
5901 {
5902 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
5903 int i;
5904
5905 /*
5906 * For the purposes of scanning, we can set our wireless mode
5907 * to trigger scans across combinations of bands, but when it
5908 * comes to creating a new ad-hoc network, we have tell the FW
5909 * exactly which band to use.
5910 *
5911 * We also have the possibility of an invalid channel for the
5912 * chossen band. Attempting to create a new ad-hoc network
5913 * with an invalid channel for wireless mode will trigger a
5914 * FW fatal error.
5915 *
5916 */
5917 switch (libipw_is_valid_channel(priv->ieee, priv->channel)) {
5918 case LIBIPW_52GHZ_BAND:
5919 network->mode = IEEE_A;
5920 i = libipw_channel_to_index(priv->ieee, priv->channel);
5921 BUG_ON(i == -1);
5922 if (geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY) {
5923 IPW_WARNING("Overriding invalid channel\n");
5924 priv->channel = geo->a[0].channel;
5925 }
5926 break;
5927
5928 case LIBIPW_24GHZ_BAND:
5929 if (priv->ieee->mode & IEEE_G)
5930 network->mode = IEEE_G;
5931 else
5932 network->mode = IEEE_B;
5933 i = libipw_channel_to_index(priv->ieee, priv->channel);
5934 BUG_ON(i == -1);
5935 if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY) {
5936 IPW_WARNING("Overriding invalid channel\n");
5937 priv->channel = geo->bg[0].channel;
5938 }
5939 break;
5940
5941 default:
5942 IPW_WARNING("Overriding invalid channel\n");
5943 if (priv->ieee->mode & IEEE_A) {
5944 network->mode = IEEE_A;
5945 priv->channel = geo->a[0].channel;
5946 } else if (priv->ieee->mode & IEEE_G) {
5947 network->mode = IEEE_G;
5948 priv->channel = geo->bg[0].channel;
5949 } else {
5950 network->mode = IEEE_B;
5951 priv->channel = geo->bg[0].channel;
5952 }
5953 break;
5954 }
5955
5956 network->channel = priv->channel;
5957 priv->config |= CFG_ADHOC_PERSIST;
5958 ipw_create_bssid(priv, network->bssid);
5959 network->ssid_len = priv->essid_len;
5960 memcpy(network->ssid, priv->essid, priv->essid_len);
5961 memset(&network->stats, 0, sizeof(network->stats));
5962 network->capability = WLAN_CAPABILITY_IBSS;
5963 if (!(priv->config & CFG_PREAMBLE_LONG))
5964 network->capability |= WLAN_CAPABILITY_SHORT_PREAMBLE;
5965 if (priv->capability & CAP_PRIVACY_ON)
5966 network->capability |= WLAN_CAPABILITY_PRIVACY;
5967 network->rates_len = min(priv->rates.num_rates, MAX_RATES_LENGTH);
5968 memcpy(network->rates, priv->rates.supported_rates, network->rates_len);
5969 network->rates_ex_len = priv->rates.num_rates - network->rates_len;
5970 memcpy(network->rates_ex,
5971 &priv->rates.supported_rates[network->rates_len],
5972 network->rates_ex_len);
5973 network->last_scanned = 0;
5974 network->flags = 0;
5975 network->last_associate = 0;
5976 network->time_stamp[0] = 0;
5977 network->time_stamp[1] = 0;
5978 network->beacon_interval = 100; /* Default */
5979 network->listen_interval = 10; /* Default */
5980 network->atim_window = 0; /* Default */
5981 network->wpa_ie_len = 0;
5982 network->rsn_ie_len = 0;
5983 }
5984
5985 static void ipw_send_tgi_tx_key(struct ipw_priv *priv, int type, int index)
5986 {
5987 struct ipw_tgi_tx_key key;
5988
5989 if (!(priv->ieee->sec.flags & (1 << index)))
5990 return;
5991
5992 key.key_id = index;
5993 memcpy(key.key, priv->ieee->sec.keys[index], SCM_TEMPORAL_KEY_LENGTH);
5994 key.security_type = type;
5995 key.station_index = 0; /* always 0 for BSS */
5996 key.flags = 0;
5997 /* 0 for new key; previous value of counter (after fatal error) */
5998 key.tx_counter[0] = cpu_to_le32(0);
5999 key.tx_counter[1] = cpu_to_le32(0);
6000
6001 ipw_send_cmd_pdu(priv, IPW_CMD_TGI_TX_KEY, sizeof(key), &key);
6002 }
6003
6004 static void ipw_send_wep_keys(struct ipw_priv *priv, int type)
6005 {
6006 struct ipw_wep_key key;
6007 int i;
6008
6009 key.cmd_id = DINO_CMD_WEP_KEY;
6010 key.seq_num = 0;
6011
6012 /* Note: AES keys cannot be set for multiple times.
6013 * Only set it at the first time. */
6014 for (i = 0; i < 4; i++) {
6015 key.key_index = i | type;
6016 if (!(priv->ieee->sec.flags & (1 << i))) {
6017 key.key_size = 0;
6018 continue;
6019 }
6020
6021 key.key_size = priv->ieee->sec.key_sizes[i];
6022 memcpy(key.key, priv->ieee->sec.keys[i], key.key_size);
6023
6024 ipw_send_cmd_pdu(priv, IPW_CMD_WEP_KEY, sizeof(key), &key);
6025 }
6026 }
6027
6028 static void ipw_set_hw_decrypt_unicast(struct ipw_priv *priv, int level)
6029 {
6030 if (priv->ieee->host_encrypt)
6031 return;
6032
6033 switch (level) {
6034 case SEC_LEVEL_3:
6035 priv->sys_config.disable_unicast_decryption = 0;
6036 priv->ieee->host_decrypt = 0;
6037 break;
6038 case SEC_LEVEL_2:
6039 priv->sys_config.disable_unicast_decryption = 1;
6040 priv->ieee->host_decrypt = 1;
6041 break;
6042 case SEC_LEVEL_1:
6043 priv->sys_config.disable_unicast_decryption = 0;
6044 priv->ieee->host_decrypt = 0;
6045 break;
6046 case SEC_LEVEL_0:
6047 priv->sys_config.disable_unicast_decryption = 1;
6048 break;
6049 default:
6050 break;
6051 }
6052 }
6053
6054 static void ipw_set_hw_decrypt_multicast(struct ipw_priv *priv, int level)
6055 {
6056 if (priv->ieee->host_encrypt)
6057 return;
6058
6059 switch (level) {
6060 case SEC_LEVEL_3:
6061 priv->sys_config.disable_multicast_decryption = 0;
6062 break;
6063 case SEC_LEVEL_2:
6064 priv->sys_config.disable_multicast_decryption = 1;
6065 break;
6066 case SEC_LEVEL_1:
6067 priv->sys_config.disable_multicast_decryption = 0;
6068 break;
6069 case SEC_LEVEL_0:
6070 priv->sys_config.disable_multicast_decryption = 1;
6071 break;
6072 default:
6073 break;
6074 }
6075 }
6076
6077 static void ipw_set_hwcrypto_keys(struct ipw_priv *priv)
6078 {
6079 switch (priv->ieee->sec.level) {
6080 case SEC_LEVEL_3:
6081 if (priv->ieee->sec.flags & SEC_ACTIVE_KEY)
6082 ipw_send_tgi_tx_key(priv,
6083 DCT_FLAG_EXT_SECURITY_CCM,
6084 priv->ieee->sec.active_key);
6085
6086 if (!priv->ieee->host_mc_decrypt)
6087 ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_CCM);
6088 break;
6089 case SEC_LEVEL_2:
6090 if (priv->ieee->sec.flags & SEC_ACTIVE_KEY)
6091 ipw_send_tgi_tx_key(priv,
6092 DCT_FLAG_EXT_SECURITY_TKIP,
6093 priv->ieee->sec.active_key);
6094 break;
6095 case SEC_LEVEL_1:
6096 ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP);
6097 ipw_set_hw_decrypt_unicast(priv, priv->ieee->sec.level);
6098 ipw_set_hw_decrypt_multicast(priv, priv->ieee->sec.level);
6099 break;
6100 case SEC_LEVEL_0:
6101 default:
6102 break;
6103 }
6104 }
6105
6106 static void ipw_adhoc_check(void *data)
6107 {
6108 struct ipw_priv *priv = data;
6109
6110 if (priv->missed_adhoc_beacons++ > priv->disassociate_threshold &&
6111 !(priv->config & CFG_ADHOC_PERSIST)) {
6112 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
6113 IPW_DL_STATE | IPW_DL_ASSOC,
6114 "Missed beacon: %d - disassociate\n",
6115 priv->missed_adhoc_beacons);
6116 ipw_remove_current_network(priv);
6117 ipw_disassociate(priv);
6118 return;
6119 }
6120
6121 queue_delayed_work(priv->workqueue, &priv->adhoc_check,
6122 le16_to_cpu(priv->assoc_request.beacon_interval));
6123 }
6124
6125 static void ipw_bg_adhoc_check(struct work_struct *work)
6126 {
6127 struct ipw_priv *priv =
6128 container_of(work, struct ipw_priv, adhoc_check.work);
6129 mutex_lock(&priv->mutex);
6130 ipw_adhoc_check(priv);
6131 mutex_unlock(&priv->mutex);
6132 }
6133
6134 static void ipw_debug_config(struct ipw_priv *priv)
6135 {
6136 DECLARE_SSID_BUF(ssid);
6137 IPW_DEBUG_INFO("Scan completed, no valid APs matched "
6138 "[CFG 0x%08X]\n", priv->config);
6139 if (priv->config & CFG_STATIC_CHANNEL)
6140 IPW_DEBUG_INFO("Channel locked to %d\n", priv->channel);
6141 else
6142 IPW_DEBUG_INFO("Channel unlocked.\n");
6143 if (priv->config & CFG_STATIC_ESSID)
6144 IPW_DEBUG_INFO("ESSID locked to '%s'\n",
6145 print_ssid(ssid, priv->essid, priv->essid_len));
6146 else
6147 IPW_DEBUG_INFO("ESSID unlocked.\n");
6148 if (priv->config & CFG_STATIC_BSSID)
6149 IPW_DEBUG_INFO("BSSID locked to %pM\n", priv->bssid);
6150 else
6151 IPW_DEBUG_INFO("BSSID unlocked.\n");
6152 if (priv->capability & CAP_PRIVACY_ON)
6153 IPW_DEBUG_INFO("PRIVACY on\n");
6154 else
6155 IPW_DEBUG_INFO("PRIVACY off\n");
6156 IPW_DEBUG_INFO("RATE MASK: 0x%08X\n", priv->rates_mask);
6157 }
6158
6159 static void ipw_set_fixed_rate(struct ipw_priv *priv, int mode)
6160 {
6161 /* TODO: Verify that this works... */
6162 struct ipw_fixed_rate fr;
6163 u32 reg;
6164 u16 mask = 0;
6165 u16 new_tx_rates = priv->rates_mask;
6166
6167 /* Identify 'current FW band' and match it with the fixed
6168 * Tx rates */
6169
6170 switch (priv->ieee->freq_band) {
6171 case LIBIPW_52GHZ_BAND: /* A only */
6172 /* IEEE_A */
6173 if (priv->rates_mask & ~LIBIPW_OFDM_RATES_MASK) {
6174 /* Invalid fixed rate mask */
6175 IPW_DEBUG_WX
6176 ("invalid fixed rate mask in ipw_set_fixed_rate\n");
6177 new_tx_rates = 0;
6178 break;
6179 }
6180
6181 new_tx_rates >>= LIBIPW_OFDM_SHIFT_MASK_A;
6182 break;
6183
6184 default: /* 2.4Ghz or Mixed */
6185 /* IEEE_B */
6186 if (mode == IEEE_B) {
6187 if (new_tx_rates & ~LIBIPW_CCK_RATES_MASK) {
6188 /* Invalid fixed rate mask */
6189 IPW_DEBUG_WX
6190 ("invalid fixed rate mask in ipw_set_fixed_rate\n");
6191 new_tx_rates = 0;
6192 }
6193 break;
6194 }
6195
6196 /* IEEE_G */
6197 if (new_tx_rates & ~(LIBIPW_CCK_RATES_MASK |
6198 LIBIPW_OFDM_RATES_MASK)) {
6199 /* Invalid fixed rate mask */
6200 IPW_DEBUG_WX
6201 ("invalid fixed rate mask in ipw_set_fixed_rate\n");
6202 new_tx_rates = 0;
6203 break;
6204 }
6205
6206 if (LIBIPW_OFDM_RATE_6MB_MASK & new_tx_rates) {
6207 mask |= (LIBIPW_OFDM_RATE_6MB_MASK >> 1);
6208 new_tx_rates &= ~LIBIPW_OFDM_RATE_6MB_MASK;
6209 }
6210
6211 if (LIBIPW_OFDM_RATE_9MB_MASK & new_tx_rates) {
6212 mask |= (LIBIPW_OFDM_RATE_9MB_MASK >> 1);
6213 new_tx_rates &= ~LIBIPW_OFDM_RATE_9MB_MASK;
6214 }
6215
6216 if (LIBIPW_OFDM_RATE_12MB_MASK & new_tx_rates) {
6217 mask |= (LIBIPW_OFDM_RATE_12MB_MASK >> 1);
6218 new_tx_rates &= ~LIBIPW_OFDM_RATE_12MB_MASK;
6219 }
6220
6221 new_tx_rates |= mask;
6222 break;
6223 }
6224
6225 fr.tx_rates = cpu_to_le16(new_tx_rates);
6226
6227 reg = ipw_read32(priv, IPW_MEM_FIXED_OVERRIDE);
6228 ipw_write_reg32(priv, reg, *(u32 *) & fr);
6229 }
6230
6231 static void ipw_abort_scan(struct ipw_priv *priv)
6232 {
6233 int err;
6234
6235 if (priv->status & STATUS_SCAN_ABORTING) {
6236 IPW_DEBUG_HC("Ignoring concurrent scan abort request.\n");
6237 return;
6238 }
6239 priv->status |= STATUS_SCAN_ABORTING;
6240
6241 err = ipw_send_scan_abort(priv);
6242 if (err)
6243 IPW_DEBUG_HC("Request to abort scan failed.\n");
6244 }
6245
6246 static void ipw_add_scan_channels(struct ipw_priv *priv,
6247 struct ipw_scan_request_ext *scan,
6248 int scan_type)
6249 {
6250 int channel_index = 0;
6251 const struct libipw_geo *geo;
6252 int i;
6253
6254 geo = libipw_get_geo(priv->ieee);
6255
6256 if (priv->ieee->freq_band & LIBIPW_52GHZ_BAND) {
6257 int start = channel_index;
6258 for (i = 0; i < geo->a_channels; i++) {
6259 if ((priv->status & STATUS_ASSOCIATED) &&
6260 geo->a[i].channel == priv->channel)
6261 continue;
6262 channel_index++;
6263 scan->channels_list[channel_index] = geo->a[i].channel;
6264 ipw_set_scan_type(scan, channel_index,
6265 geo->a[i].
6266 flags & LIBIPW_CH_PASSIVE_ONLY ?
6267 IPW_SCAN_PASSIVE_FULL_DWELL_SCAN :
6268 scan_type);
6269 }
6270
6271 if (start != channel_index) {
6272 scan->channels_list[start] = (u8) (IPW_A_MODE << 6) |
6273 (channel_index - start);
6274 channel_index++;
6275 }
6276 }
6277
6278 if (priv->ieee->freq_band & LIBIPW_24GHZ_BAND) {
6279 int start = channel_index;
6280 if (priv->config & CFG_SPEED_SCAN) {
6281 int index;
6282 u8 channels[LIBIPW_24GHZ_CHANNELS] = {
6283 /* nop out the list */
6284 [0] = 0
6285 };
6286
6287 u8 channel;
6288 while (channel_index < IPW_SCAN_CHANNELS - 1) {
6289 channel =
6290 priv->speed_scan[priv->speed_scan_pos];
6291 if (channel == 0) {
6292 priv->speed_scan_pos = 0;
6293 channel = priv->speed_scan[0];
6294 }
6295 if ((priv->status & STATUS_ASSOCIATED) &&
6296 channel == priv->channel) {
6297 priv->speed_scan_pos++;
6298 continue;
6299 }
6300
6301 /* If this channel has already been
6302 * added in scan, break from loop
6303 * and this will be the first channel
6304 * in the next scan.
6305 */
6306 if (channels[channel - 1] != 0)
6307 break;
6308
6309 channels[channel - 1] = 1;
6310 priv->speed_scan_pos++;
6311 channel_index++;
6312 scan->channels_list[channel_index] = channel;
6313 index =
6314 libipw_channel_to_index(priv->ieee, channel);
6315 ipw_set_scan_type(scan, channel_index,
6316 geo->bg[index].
6317 flags &
6318 LIBIPW_CH_PASSIVE_ONLY ?
6319 IPW_SCAN_PASSIVE_FULL_DWELL_SCAN
6320 : scan_type);
6321 }
6322 } else {
6323 for (i = 0; i < geo->bg_channels; i++) {
6324 if ((priv->status & STATUS_ASSOCIATED) &&
6325 geo->bg[i].channel == priv->channel)
6326 continue;
6327 channel_index++;
6328 scan->channels_list[channel_index] =
6329 geo->bg[i].channel;
6330 ipw_set_scan_type(scan, channel_index,
6331 geo->bg[i].
6332 flags &
6333 LIBIPW_CH_PASSIVE_ONLY ?
6334 IPW_SCAN_PASSIVE_FULL_DWELL_SCAN
6335 : scan_type);
6336 }
6337 }
6338
6339 if (start != channel_index) {
6340 scan->channels_list[start] = (u8) (IPW_B_MODE << 6) |
6341 (channel_index - start);
6342 }
6343 }
6344 }
6345
6346 static int ipw_passive_dwell_time(struct ipw_priv *priv)
6347 {
6348 /* staying on passive channels longer than the DTIM interval during a
6349 * scan, while associated, causes the firmware to cancel the scan
6350 * without notification. Hence, don't stay on passive channels longer
6351 * than the beacon interval.
6352 */
6353 if (priv->status & STATUS_ASSOCIATED
6354 && priv->assoc_network->beacon_interval > 10)
6355 return priv->assoc_network->beacon_interval - 10;
6356 else
6357 return 120;
6358 }
6359
6360 static int ipw_request_scan_helper(struct ipw_priv *priv, int type, int direct)
6361 {
6362 struct ipw_scan_request_ext scan;
6363 int err = 0, scan_type;
6364
6365 if (!(priv->status & STATUS_INIT) ||
6366 (priv->status & STATUS_EXIT_PENDING))
6367 return 0;
6368
6369 mutex_lock(&priv->mutex);
6370
6371 if (direct && (priv->direct_scan_ssid_len == 0)) {
6372 IPW_DEBUG_HC("Direct scan requested but no SSID to scan for\n");
6373 priv->status &= ~STATUS_DIRECT_SCAN_PENDING;
6374 goto done;
6375 }
6376
6377 if (priv->status & STATUS_SCANNING) {
6378 IPW_DEBUG_HC("Concurrent scan requested. Queuing.\n");
6379 priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING :
6380 STATUS_SCAN_PENDING;
6381 goto done;
6382 }
6383
6384 if (!(priv->status & STATUS_SCAN_FORCED) &&
6385 priv->status & STATUS_SCAN_ABORTING) {
6386 IPW_DEBUG_HC("Scan request while abort pending. Queuing.\n");
6387 priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING :
6388 STATUS_SCAN_PENDING;
6389 goto done;
6390 }
6391
6392 if (priv->status & STATUS_RF_KILL_MASK) {
6393 IPW_DEBUG_HC("Queuing scan due to RF Kill activation\n");
6394 priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING :
6395 STATUS_SCAN_PENDING;
6396 goto done;
6397 }
6398
6399 memset(&scan, 0, sizeof(scan));
6400 scan.full_scan_index = cpu_to_le32(libipw_get_scans(priv->ieee));
6401
6402 if (type == IW_SCAN_TYPE_PASSIVE) {
6403 IPW_DEBUG_WX("use passive scanning\n");
6404 scan_type = IPW_SCAN_PASSIVE_FULL_DWELL_SCAN;
6405 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] =
6406 cpu_to_le16(ipw_passive_dwell_time(priv));
6407 ipw_add_scan_channels(priv, &scan, scan_type);
6408 goto send_request;
6409 }
6410
6411 /* Use active scan by default. */
6412 if (priv->config & CFG_SPEED_SCAN)
6413 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
6414 cpu_to_le16(30);
6415 else
6416 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
6417 cpu_to_le16(20);
6418
6419 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN] =
6420 cpu_to_le16(20);
6421
6422 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] =
6423 cpu_to_le16(ipw_passive_dwell_time(priv));
6424 scan.dwell_time[IPW_SCAN_ACTIVE_DIRECT_SCAN] = cpu_to_le16(20);
6425
6426 #ifdef CONFIG_IPW2200_MONITOR
6427 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
6428 u8 channel;
6429 u8 band = 0;
6430
6431 switch (libipw_is_valid_channel(priv->ieee, priv->channel)) {
6432 case LIBIPW_52GHZ_BAND:
6433 band = (u8) (IPW_A_MODE << 6) | 1;
6434 channel = priv->channel;
6435 break;
6436
6437 case LIBIPW_24GHZ_BAND:
6438 band = (u8) (IPW_B_MODE << 6) | 1;
6439 channel = priv->channel;
6440 break;
6441
6442 default:
6443 band = (u8) (IPW_B_MODE << 6) | 1;
6444 channel = 9;
6445 break;
6446 }
6447
6448 scan.channels_list[0] = band;
6449 scan.channels_list[1] = channel;
6450 ipw_set_scan_type(&scan, 1, IPW_SCAN_PASSIVE_FULL_DWELL_SCAN);
6451
6452 /* NOTE: The card will sit on this channel for this time
6453 * period. Scan aborts are timing sensitive and frequently
6454 * result in firmware restarts. As such, it is best to
6455 * set a small dwell_time here and just keep re-issuing
6456 * scans. Otherwise fast channel hopping will not actually
6457 * hop channels.
6458 *
6459 * TODO: Move SPEED SCAN support to all modes and bands */
6460 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] =
6461 cpu_to_le16(2000);
6462 } else {
6463 #endif /* CONFIG_IPW2200_MONITOR */
6464 /* Honor direct scans first, otherwise if we are roaming make
6465 * this a direct scan for the current network. Finally,
6466 * ensure that every other scan is a fast channel hop scan */
6467 if (direct) {
6468 err = ipw_send_ssid(priv, priv->direct_scan_ssid,
6469 priv->direct_scan_ssid_len);
6470 if (err) {
6471 IPW_DEBUG_HC("Attempt to send SSID command "
6472 "failed\n");
6473 goto done;
6474 }
6475
6476 scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN;
6477 } else if ((priv->status & STATUS_ROAMING)
6478 || (!(priv->status & STATUS_ASSOCIATED)
6479 && (priv->config & CFG_STATIC_ESSID)
6480 && (le32_to_cpu(scan.full_scan_index) % 2))) {
6481 err = ipw_send_ssid(priv, priv->essid, priv->essid_len);
6482 if (err) {
6483 IPW_DEBUG_HC("Attempt to send SSID command "
6484 "failed.\n");
6485 goto done;
6486 }
6487
6488 scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN;
6489 } else
6490 scan_type = IPW_SCAN_ACTIVE_BROADCAST_SCAN;
6491
6492 ipw_add_scan_channels(priv, &scan, scan_type);
6493 #ifdef CONFIG_IPW2200_MONITOR
6494 }
6495 #endif
6496
6497 send_request:
6498 err = ipw_send_scan_request_ext(priv, &scan);
6499 if (err) {
6500 IPW_DEBUG_HC("Sending scan command failed: %08X\n", err);
6501 goto done;
6502 }
6503
6504 priv->status |= STATUS_SCANNING;
6505 if (direct) {
6506 priv->status &= ~STATUS_DIRECT_SCAN_PENDING;
6507 priv->direct_scan_ssid_len = 0;
6508 } else
6509 priv->status &= ~STATUS_SCAN_PENDING;
6510
6511 queue_delayed_work(priv->workqueue, &priv->scan_check,
6512 IPW_SCAN_CHECK_WATCHDOG);
6513 done:
6514 mutex_unlock(&priv->mutex);
6515 return err;
6516 }
6517
6518 static void ipw_request_passive_scan(struct work_struct *work)
6519 {
6520 struct ipw_priv *priv =
6521 container_of(work, struct ipw_priv, request_passive_scan.work);
6522 ipw_request_scan_helper(priv, IW_SCAN_TYPE_PASSIVE, 0);
6523 }
6524
6525 static void ipw_request_scan(struct work_struct *work)
6526 {
6527 struct ipw_priv *priv =
6528 container_of(work, struct ipw_priv, request_scan.work);
6529 ipw_request_scan_helper(priv, IW_SCAN_TYPE_ACTIVE, 0);
6530 }
6531
6532 static void ipw_request_direct_scan(struct work_struct *work)
6533 {
6534 struct ipw_priv *priv =
6535 container_of(work, struct ipw_priv, request_direct_scan.work);
6536 ipw_request_scan_helper(priv, IW_SCAN_TYPE_ACTIVE, 1);
6537 }
6538
6539 static void ipw_bg_abort_scan(struct work_struct *work)
6540 {
6541 struct ipw_priv *priv =
6542 container_of(work, struct ipw_priv, abort_scan);
6543 mutex_lock(&priv->mutex);
6544 ipw_abort_scan(priv);
6545 mutex_unlock(&priv->mutex);
6546 }
6547
6548 static int ipw_wpa_enable(struct ipw_priv *priv, int value)
6549 {
6550 /* This is called when wpa_supplicant loads and closes the driver
6551 * interface. */
6552 priv->ieee->wpa_enabled = value;
6553 return 0;
6554 }
6555
6556 static int ipw_wpa_set_auth_algs(struct ipw_priv *priv, int value)
6557 {
6558 struct libipw_device *ieee = priv->ieee;
6559 struct libipw_security sec = {
6560 .flags = SEC_AUTH_MODE,
6561 };
6562 int ret = 0;
6563
6564 if (value & IW_AUTH_ALG_SHARED_KEY) {
6565 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
6566 ieee->open_wep = 0;
6567 } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) {
6568 sec.auth_mode = WLAN_AUTH_OPEN;
6569 ieee->open_wep = 1;
6570 } else if (value & IW_AUTH_ALG_LEAP) {
6571 sec.auth_mode = WLAN_AUTH_LEAP;
6572 ieee->open_wep = 1;
6573 } else
6574 return -EINVAL;
6575
6576 if (ieee->set_security)
6577 ieee->set_security(ieee->dev, &sec);
6578 else
6579 ret = -EOPNOTSUPP;
6580
6581 return ret;
6582 }
6583
6584 static void ipw_wpa_assoc_frame(struct ipw_priv *priv, char *wpa_ie,
6585 int wpa_ie_len)
6586 {
6587 /* make sure WPA is enabled */
6588 ipw_wpa_enable(priv, 1);
6589 }
6590
6591 static int ipw_set_rsn_capa(struct ipw_priv *priv,
6592 char *capabilities, int length)
6593 {
6594 IPW_DEBUG_HC("HOST_CMD_RSN_CAPABILITIES\n");
6595
6596 return ipw_send_cmd_pdu(priv, IPW_CMD_RSN_CAPABILITIES, length,
6597 capabilities);
6598 }
6599
6600 /*
6601 * WE-18 support
6602 */
6603
6604 /* SIOCSIWGENIE */
6605 static int ipw_wx_set_genie(struct net_device *dev,
6606 struct iw_request_info *info,
6607 union iwreq_data *wrqu, char *extra)
6608 {
6609 struct ipw_priv *priv = libipw_priv(dev);
6610 struct libipw_device *ieee = priv->ieee;
6611 u8 *buf;
6612 int err = 0;
6613
6614 if (wrqu->data.length > MAX_WPA_IE_LEN ||
6615 (wrqu->data.length && extra == NULL))
6616 return -EINVAL;
6617
6618 if (wrqu->data.length) {
6619 buf = kmalloc(wrqu->data.length, GFP_KERNEL);
6620 if (buf == NULL) {
6621 err = -ENOMEM;
6622 goto out;
6623 }
6624
6625 memcpy(buf, extra, wrqu->data.length);
6626 kfree(ieee->wpa_ie);
6627 ieee->wpa_ie = buf;
6628 ieee->wpa_ie_len = wrqu->data.length;
6629 } else {
6630 kfree(ieee->wpa_ie);
6631 ieee->wpa_ie = NULL;
6632 ieee->wpa_ie_len = 0;
6633 }
6634
6635 ipw_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
6636 out:
6637 return err;
6638 }
6639
6640 /* SIOCGIWGENIE */
6641 static int ipw_wx_get_genie(struct net_device *dev,
6642 struct iw_request_info *info,
6643 union iwreq_data *wrqu, char *extra)
6644 {
6645 struct ipw_priv *priv = libipw_priv(dev);
6646 struct libipw_device *ieee = priv->ieee;
6647 int err = 0;
6648
6649 if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) {
6650 wrqu->data.length = 0;
6651 goto out;
6652 }
6653
6654 if (wrqu->data.length < ieee->wpa_ie_len) {
6655 err = -E2BIG;
6656 goto out;
6657 }
6658
6659 wrqu->data.length = ieee->wpa_ie_len;
6660 memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len);
6661
6662 out:
6663 return err;
6664 }
6665
6666 static int wext_cipher2level(int cipher)
6667 {
6668 switch (cipher) {
6669 case IW_AUTH_CIPHER_NONE:
6670 return SEC_LEVEL_0;
6671 case IW_AUTH_CIPHER_WEP40:
6672 case IW_AUTH_CIPHER_WEP104:
6673 return SEC_LEVEL_1;
6674 case IW_AUTH_CIPHER_TKIP:
6675 return SEC_LEVEL_2;
6676 case IW_AUTH_CIPHER_CCMP:
6677 return SEC_LEVEL_3;
6678 default:
6679 return -1;
6680 }
6681 }
6682
6683 /* SIOCSIWAUTH */
6684 static int ipw_wx_set_auth(struct net_device *dev,
6685 struct iw_request_info *info,
6686 union iwreq_data *wrqu, char *extra)
6687 {
6688 struct ipw_priv *priv = libipw_priv(dev);
6689 struct libipw_device *ieee = priv->ieee;
6690 struct iw_param *param = &wrqu->param;
6691 struct lib80211_crypt_data *crypt;
6692 unsigned long flags;
6693 int ret = 0;
6694
6695 switch (param->flags & IW_AUTH_INDEX) {
6696 case IW_AUTH_WPA_VERSION:
6697 break;
6698 case IW_AUTH_CIPHER_PAIRWISE:
6699 ipw_set_hw_decrypt_unicast(priv,
6700 wext_cipher2level(param->value));
6701 break;
6702 case IW_AUTH_CIPHER_GROUP:
6703 ipw_set_hw_decrypt_multicast(priv,
6704 wext_cipher2level(param->value));
6705 break;
6706 case IW_AUTH_KEY_MGMT:
6707 /*
6708 * ipw2200 does not use these parameters
6709 */
6710 break;
6711
6712 case IW_AUTH_TKIP_COUNTERMEASURES:
6713 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
6714 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags)
6715 break;
6716
6717 flags = crypt->ops->get_flags(crypt->priv);
6718
6719 if (param->value)
6720 flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
6721 else
6722 flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
6723
6724 crypt->ops->set_flags(flags, crypt->priv);
6725
6726 break;
6727
6728 case IW_AUTH_DROP_UNENCRYPTED:{
6729 /* HACK:
6730 *
6731 * wpa_supplicant calls set_wpa_enabled when the driver
6732 * is loaded and unloaded, regardless of if WPA is being
6733 * used. No other calls are made which can be used to
6734 * determine if encryption will be used or not prior to
6735 * association being expected. If encryption is not being
6736 * used, drop_unencrypted is set to false, else true -- we
6737 * can use this to determine if the CAP_PRIVACY_ON bit should
6738 * be set.
6739 */
6740 struct libipw_security sec = {
6741 .flags = SEC_ENABLED,
6742 .enabled = param->value,
6743 };
6744 priv->ieee->drop_unencrypted = param->value;
6745 /* We only change SEC_LEVEL for open mode. Others
6746 * are set by ipw_wpa_set_encryption.
6747 */
6748 if (!param->value) {
6749 sec.flags |= SEC_LEVEL;
6750 sec.level = SEC_LEVEL_0;
6751 } else {
6752 sec.flags |= SEC_LEVEL;
6753 sec.level = SEC_LEVEL_1;
6754 }
6755 if (priv->ieee->set_security)
6756 priv->ieee->set_security(priv->ieee->dev, &sec);
6757 break;
6758 }
6759
6760 case IW_AUTH_80211_AUTH_ALG:
6761 ret = ipw_wpa_set_auth_algs(priv, param->value);
6762 break;
6763
6764 case IW_AUTH_WPA_ENABLED:
6765 ret = ipw_wpa_enable(priv, param->value);
6766 ipw_disassociate(priv);
6767 break;
6768
6769 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6770 ieee->ieee802_1x = param->value;
6771 break;
6772
6773 case IW_AUTH_PRIVACY_INVOKED:
6774 ieee->privacy_invoked = param->value;
6775 break;
6776
6777 default:
6778 return -EOPNOTSUPP;
6779 }
6780 return ret;
6781 }
6782
6783 /* SIOCGIWAUTH */
6784 static int ipw_wx_get_auth(struct net_device *dev,
6785 struct iw_request_info *info,
6786 union iwreq_data *wrqu, char *extra)
6787 {
6788 struct ipw_priv *priv = libipw_priv(dev);
6789 struct libipw_device *ieee = priv->ieee;
6790 struct lib80211_crypt_data *crypt;
6791 struct iw_param *param = &wrqu->param;
6792 int ret = 0;
6793
6794 switch (param->flags & IW_AUTH_INDEX) {
6795 case IW_AUTH_WPA_VERSION:
6796 case IW_AUTH_CIPHER_PAIRWISE:
6797 case IW_AUTH_CIPHER_GROUP:
6798 case IW_AUTH_KEY_MGMT:
6799 /*
6800 * wpa_supplicant will control these internally
6801 */
6802 ret = -EOPNOTSUPP;
6803 break;
6804
6805 case IW_AUTH_TKIP_COUNTERMEASURES:
6806 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
6807 if (!crypt || !crypt->ops->get_flags)
6808 break;
6809
6810 param->value = (crypt->ops->get_flags(crypt->priv) &
6811 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0;
6812
6813 break;
6814
6815 case IW_AUTH_DROP_UNENCRYPTED:
6816 param->value = ieee->drop_unencrypted;
6817 break;
6818
6819 case IW_AUTH_80211_AUTH_ALG:
6820 param->value = ieee->sec.auth_mode;
6821 break;
6822
6823 case IW_AUTH_WPA_ENABLED:
6824 param->value = ieee->wpa_enabled;
6825 break;
6826
6827 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6828 param->value = ieee->ieee802_1x;
6829 break;
6830
6831 case IW_AUTH_ROAMING_CONTROL:
6832 case IW_AUTH_PRIVACY_INVOKED:
6833 param->value = ieee->privacy_invoked;
6834 break;
6835
6836 default:
6837 return -EOPNOTSUPP;
6838 }
6839 return 0;
6840 }
6841
6842 /* SIOCSIWENCODEEXT */
6843 static int ipw_wx_set_encodeext(struct net_device *dev,
6844 struct iw_request_info *info,
6845 union iwreq_data *wrqu, char *extra)
6846 {
6847 struct ipw_priv *priv = libipw_priv(dev);
6848 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6849
6850 if (hwcrypto) {
6851 if (ext->alg == IW_ENCODE_ALG_TKIP) {
6852 /* IPW HW can't build TKIP MIC,
6853 host decryption still needed */
6854 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY)
6855 priv->ieee->host_mc_decrypt = 1;
6856 else {
6857 priv->ieee->host_encrypt = 0;
6858 priv->ieee->host_encrypt_msdu = 1;
6859 priv->ieee->host_decrypt = 1;
6860 }
6861 } else {
6862 priv->ieee->host_encrypt = 0;
6863 priv->ieee->host_encrypt_msdu = 0;
6864 priv->ieee->host_decrypt = 0;
6865 priv->ieee->host_mc_decrypt = 0;
6866 }
6867 }
6868
6869 return libipw_wx_set_encodeext(priv->ieee, info, wrqu, extra);
6870 }
6871
6872 /* SIOCGIWENCODEEXT */
6873 static int ipw_wx_get_encodeext(struct net_device *dev,
6874 struct iw_request_info *info,
6875 union iwreq_data *wrqu, char *extra)
6876 {
6877 struct ipw_priv *priv = libipw_priv(dev);
6878 return libipw_wx_get_encodeext(priv->ieee, info, wrqu, extra);
6879 }
6880
6881 /* SIOCSIWMLME */
6882 static int ipw_wx_set_mlme(struct net_device *dev,
6883 struct iw_request_info *info,
6884 union iwreq_data *wrqu, char *extra)
6885 {
6886 struct ipw_priv *priv = libipw_priv(dev);
6887 struct iw_mlme *mlme = (struct iw_mlme *)extra;
6888 __le16 reason;
6889
6890 reason = cpu_to_le16(mlme->reason_code);
6891
6892 switch (mlme->cmd) {
6893 case IW_MLME_DEAUTH:
6894 /* silently ignore */
6895 break;
6896
6897 case IW_MLME_DISASSOC:
6898 ipw_disassociate(priv);
6899 break;
6900
6901 default:
6902 return -EOPNOTSUPP;
6903 }
6904 return 0;
6905 }
6906
6907 #ifdef CONFIG_IPW2200_QOS
6908
6909 /* QoS */
6910 /*
6911 * get the modulation type of the current network or
6912 * the card current mode
6913 */
6914 static u8 ipw_qos_current_mode(struct ipw_priv * priv)
6915 {
6916 u8 mode = 0;
6917
6918 if (priv->status & STATUS_ASSOCIATED) {
6919 unsigned long flags;
6920
6921 spin_lock_irqsave(&priv->ieee->lock, flags);
6922 mode = priv->assoc_network->mode;
6923 spin_unlock_irqrestore(&priv->ieee->lock, flags);
6924 } else {
6925 mode = priv->ieee->mode;
6926 }
6927 IPW_DEBUG_QOS("QoS network/card mode %d \n", mode);
6928 return mode;
6929 }
6930
6931 /*
6932 * Handle management frame beacon and probe response
6933 */
6934 static int ipw_qos_handle_probe_response(struct ipw_priv *priv,
6935 int active_network,
6936 struct libipw_network *network)
6937 {
6938 u32 size = sizeof(struct libipw_qos_parameters);
6939
6940 if (network->capability & WLAN_CAPABILITY_IBSS)
6941 network->qos_data.active = network->qos_data.supported;
6942
6943 if (network->flags & NETWORK_HAS_QOS_MASK) {
6944 if (active_network &&
6945 (network->flags & NETWORK_HAS_QOS_PARAMETERS))
6946 network->qos_data.active = network->qos_data.supported;
6947
6948 if ((network->qos_data.active == 1) && (active_network == 1) &&
6949 (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
6950 (network->qos_data.old_param_count !=
6951 network->qos_data.param_count)) {
6952 network->qos_data.old_param_count =
6953 network->qos_data.param_count;
6954 schedule_work(&priv->qos_activate);
6955 IPW_DEBUG_QOS("QoS parameters change call "
6956 "qos_activate\n");
6957 }
6958 } else {
6959 if ((priv->ieee->mode == IEEE_B) || (network->mode == IEEE_B))
6960 memcpy(&network->qos_data.parameters,
6961 &def_parameters_CCK, size);
6962 else
6963 memcpy(&network->qos_data.parameters,
6964 &def_parameters_OFDM, size);
6965
6966 if ((network->qos_data.active == 1) && (active_network == 1)) {
6967 IPW_DEBUG_QOS("QoS was disabled call qos_activate \n");
6968 schedule_work(&priv->qos_activate);
6969 }
6970
6971 network->qos_data.active = 0;
6972 network->qos_data.supported = 0;
6973 }
6974 if ((priv->status & STATUS_ASSOCIATED) &&
6975 (priv->ieee->iw_mode == IW_MODE_ADHOC) && (active_network == 0)) {
6976 if (memcmp(network->bssid, priv->bssid, ETH_ALEN))
6977 if (network->capability & WLAN_CAPABILITY_IBSS)
6978 if ((network->ssid_len ==
6979 priv->assoc_network->ssid_len) &&
6980 !memcmp(network->ssid,
6981 priv->assoc_network->ssid,
6982 network->ssid_len)) {
6983 queue_work(priv->workqueue,
6984 &priv->merge_networks);
6985 }
6986 }
6987
6988 return 0;
6989 }
6990
6991 /*
6992 * This function set up the firmware to support QoS. It sends
6993 * IPW_CMD_QOS_PARAMETERS and IPW_CMD_WME_INFO
6994 */
6995 static int ipw_qos_activate(struct ipw_priv *priv,
6996 struct libipw_qos_data *qos_network_data)
6997 {
6998 int err;
6999 struct libipw_qos_parameters qos_parameters[QOS_QOS_SETS];
7000 struct libipw_qos_parameters *active_one = NULL;
7001 u32 size = sizeof(struct libipw_qos_parameters);
7002 u32 burst_duration;
7003 int i;
7004 u8 type;
7005
7006 type = ipw_qos_current_mode(priv);
7007
7008 active_one = &(qos_parameters[QOS_PARAM_SET_DEF_CCK]);
7009 memcpy(active_one, priv->qos_data.def_qos_parm_CCK, size);
7010 active_one = &(qos_parameters[QOS_PARAM_SET_DEF_OFDM]);
7011 memcpy(active_one, priv->qos_data.def_qos_parm_OFDM, size);
7012
7013 if (qos_network_data == NULL) {
7014 if (type == IEEE_B) {
7015 IPW_DEBUG_QOS("QoS activate network mode %d\n", type);
7016 active_one = &def_parameters_CCK;
7017 } else
7018 active_one = &def_parameters_OFDM;
7019
7020 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
7021 burst_duration = ipw_qos_get_burst_duration(priv);
7022 for (i = 0; i < QOS_QUEUE_NUM; i++)
7023 qos_parameters[QOS_PARAM_SET_ACTIVE].tx_op_limit[i] =
7024 cpu_to_le16(burst_duration);
7025 } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
7026 if (type == IEEE_B) {
7027 IPW_DEBUG_QOS("QoS activate IBSS nework mode %d\n",
7028 type);
7029 if (priv->qos_data.qos_enable == 0)
7030 active_one = &def_parameters_CCK;
7031 else
7032 active_one = priv->qos_data.def_qos_parm_CCK;
7033 } else {
7034 if (priv->qos_data.qos_enable == 0)
7035 active_one = &def_parameters_OFDM;
7036 else
7037 active_one = priv->qos_data.def_qos_parm_OFDM;
7038 }
7039 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
7040 } else {
7041 unsigned long flags;
7042 int active;
7043
7044 spin_lock_irqsave(&priv->ieee->lock, flags);
7045 active_one = &(qos_network_data->parameters);
7046 qos_network_data->old_param_count =
7047 qos_network_data->param_count;
7048 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
7049 active = qos_network_data->supported;
7050 spin_unlock_irqrestore(&priv->ieee->lock, flags);
7051
7052 if (active == 0) {
7053 burst_duration = ipw_qos_get_burst_duration(priv);
7054 for (i = 0; i < QOS_QUEUE_NUM; i++)
7055 qos_parameters[QOS_PARAM_SET_ACTIVE].
7056 tx_op_limit[i] = cpu_to_le16(burst_duration);
7057 }
7058 }
7059
7060 IPW_DEBUG_QOS("QoS sending IPW_CMD_QOS_PARAMETERS\n");
7061 err = ipw_send_qos_params_command(priv,
7062 (struct libipw_qos_parameters *)
7063 &(qos_parameters[0]));
7064 if (err)
7065 IPW_DEBUG_QOS("QoS IPW_CMD_QOS_PARAMETERS failed\n");
7066
7067 return err;
7068 }
7069
7070 /*
7071 * send IPW_CMD_WME_INFO to the firmware
7072 */
7073 static int ipw_qos_set_info_element(struct ipw_priv *priv)
7074 {
7075 int ret = 0;
7076 struct libipw_qos_information_element qos_info;
7077
7078 if (priv == NULL)
7079 return -1;
7080
7081 qos_info.elementID = QOS_ELEMENT_ID;
7082 qos_info.length = sizeof(struct libipw_qos_information_element) - 2;
7083
7084 qos_info.version = QOS_VERSION_1;
7085 qos_info.ac_info = 0;
7086
7087 memcpy(qos_info.qui, qos_oui, QOS_OUI_LEN);
7088 qos_info.qui_type = QOS_OUI_TYPE;
7089 qos_info.qui_subtype = QOS_OUI_INFO_SUB_TYPE;
7090
7091 ret = ipw_send_qos_info_command(priv, &qos_info);
7092 if (ret != 0) {
7093 IPW_DEBUG_QOS("QoS error calling ipw_send_qos_info_command\n");
7094 }
7095 return ret;
7096 }
7097
7098 /*
7099 * Set the QoS parameter with the association request structure
7100 */
7101 static int ipw_qos_association(struct ipw_priv *priv,
7102 struct libipw_network *network)
7103 {
7104 int err = 0;
7105 struct libipw_qos_data *qos_data = NULL;
7106 struct libipw_qos_data ibss_data = {
7107 .supported = 1,
7108 .active = 1,
7109 };
7110
7111 switch (priv->ieee->iw_mode) {
7112 case IW_MODE_ADHOC:
7113 BUG_ON(!(network->capability & WLAN_CAPABILITY_IBSS));
7114
7115 qos_data = &ibss_data;
7116 break;
7117
7118 case IW_MODE_INFRA:
7119 qos_data = &network->qos_data;
7120 break;
7121
7122 default:
7123 BUG();
7124 break;
7125 }
7126
7127 err = ipw_qos_activate(priv, qos_data);
7128 if (err) {
7129 priv->assoc_request.policy_support &= ~HC_QOS_SUPPORT_ASSOC;
7130 return err;
7131 }
7132
7133 if (priv->qos_data.qos_enable && qos_data->supported) {
7134 IPW_DEBUG_QOS("QoS will be enabled for this association\n");
7135 priv->assoc_request.policy_support |= HC_QOS_SUPPORT_ASSOC;
7136 return ipw_qos_set_info_element(priv);
7137 }
7138
7139 return 0;
7140 }
7141
7142 /*
7143 * handling the beaconing responses. if we get different QoS setting
7144 * off the network from the associated setting, adjust the QoS
7145 * setting
7146 */
7147 static int ipw_qos_association_resp(struct ipw_priv *priv,
7148 struct libipw_network *network)
7149 {
7150 int ret = 0;
7151 unsigned long flags;
7152 u32 size = sizeof(struct libipw_qos_parameters);
7153 int set_qos_param = 0;
7154
7155 if ((priv == NULL) || (network == NULL) ||
7156 (priv->assoc_network == NULL))
7157 return ret;
7158
7159 if (!(priv->status & STATUS_ASSOCIATED))
7160 return ret;
7161
7162 if ((priv->ieee->iw_mode != IW_MODE_INFRA))
7163 return ret;
7164
7165 spin_lock_irqsave(&priv->ieee->lock, flags);
7166 if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
7167 memcpy(&priv->assoc_network->qos_data, &network->qos_data,
7168 sizeof(struct libipw_qos_data));
7169 priv->assoc_network->qos_data.active = 1;
7170 if ((network->qos_data.old_param_count !=
7171 network->qos_data.param_count)) {
7172 set_qos_param = 1;
7173 network->qos_data.old_param_count =
7174 network->qos_data.param_count;
7175 }
7176
7177 } else {
7178 if ((network->mode == IEEE_B) || (priv->ieee->mode == IEEE_B))
7179 memcpy(&priv->assoc_network->qos_data.parameters,
7180 &def_parameters_CCK, size);
7181 else
7182 memcpy(&priv->assoc_network->qos_data.parameters,
7183 &def_parameters_OFDM, size);
7184 priv->assoc_network->qos_data.active = 0;
7185 priv->assoc_network->qos_data.supported = 0;
7186 set_qos_param = 1;
7187 }
7188
7189 spin_unlock_irqrestore(&priv->ieee->lock, flags);
7190
7191 if (set_qos_param == 1)
7192 schedule_work(&priv->qos_activate);
7193
7194 return ret;
7195 }
7196
7197 static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv)
7198 {
7199 u32 ret = 0;
7200
7201 if ((priv == NULL))
7202 return 0;
7203
7204 if (!(priv->ieee->modulation & LIBIPW_OFDM_MODULATION))
7205 ret = priv->qos_data.burst_duration_CCK;
7206 else
7207 ret = priv->qos_data.burst_duration_OFDM;
7208
7209 return ret;
7210 }
7211
7212 /*
7213 * Initialize the setting of QoS global
7214 */
7215 static void ipw_qos_init(struct ipw_priv *priv, int enable,
7216 int burst_enable, u32 burst_duration_CCK,
7217 u32 burst_duration_OFDM)
7218 {
7219 priv->qos_data.qos_enable = enable;
7220
7221 if (priv->qos_data.qos_enable) {
7222 priv->qos_data.def_qos_parm_CCK = &def_qos_parameters_CCK;
7223 priv->qos_data.def_qos_parm_OFDM = &def_qos_parameters_OFDM;
7224 IPW_DEBUG_QOS("QoS is enabled\n");
7225 } else {
7226 priv->qos_data.def_qos_parm_CCK = &def_parameters_CCK;
7227 priv->qos_data.def_qos_parm_OFDM = &def_parameters_OFDM;
7228 IPW_DEBUG_QOS("QoS is not enabled\n");
7229 }
7230
7231 priv->qos_data.burst_enable = burst_enable;
7232
7233 if (burst_enable) {
7234 priv->qos_data.burst_duration_CCK = burst_duration_CCK;
7235 priv->qos_data.burst_duration_OFDM = burst_duration_OFDM;
7236 } else {
7237 priv->qos_data.burst_duration_CCK = 0;
7238 priv->qos_data.burst_duration_OFDM = 0;
7239 }
7240 }
7241
7242 /*
7243 * map the packet priority to the right TX Queue
7244 */
7245 static int ipw_get_tx_queue_number(struct ipw_priv *priv, u16 priority)
7246 {
7247 if (priority > 7 || !priv->qos_data.qos_enable)
7248 priority = 0;
7249
7250 return from_priority_to_tx_queue[priority] - 1;
7251 }
7252
7253 static int ipw_is_qos_active(struct net_device *dev,
7254 struct sk_buff *skb)
7255 {
7256 struct ipw_priv *priv = libipw_priv(dev);
7257 struct libipw_qos_data *qos_data = NULL;
7258 int active, supported;
7259 u8 *daddr = skb->data + ETH_ALEN;
7260 int unicast = !is_multicast_ether_addr(daddr);
7261
7262 if (!(priv->status & STATUS_ASSOCIATED))
7263 return 0;
7264
7265 qos_data = &priv->assoc_network->qos_data;
7266
7267 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
7268 if (unicast == 0)
7269 qos_data->active = 0;
7270 else
7271 qos_data->active = qos_data->supported;
7272 }
7273 active = qos_data->active;
7274 supported = qos_data->supported;
7275 IPW_DEBUG_QOS("QoS %d network is QoS active %d supported %d "
7276 "unicast %d\n",
7277 priv->qos_data.qos_enable, active, supported, unicast);
7278 if (active && priv->qos_data.qos_enable)
7279 return 1;
7280
7281 return 0;
7282
7283 }
7284 /*
7285 * add QoS parameter to the TX command
7286 */
7287 static int ipw_qos_set_tx_queue_command(struct ipw_priv *priv,
7288 u16 priority,
7289 struct tfd_data *tfd)
7290 {
7291 int tx_queue_id = 0;
7292
7293
7294 tx_queue_id = from_priority_to_tx_queue[priority] - 1;
7295 tfd->tx_flags_ext |= DCT_FLAG_EXT_QOS_ENABLED;
7296
7297 if (priv->qos_data.qos_no_ack_mask & (1UL << tx_queue_id)) {
7298 tfd->tx_flags &= ~DCT_FLAG_ACK_REQD;
7299 tfd->tfd.tfd_26.mchdr.qos_ctrl |= cpu_to_le16(CTRL_QOS_NO_ACK);
7300 }
7301 return 0;
7302 }
7303
7304 /*
7305 * background support to run QoS activate functionality
7306 */
7307 static void ipw_bg_qos_activate(struct work_struct *work)
7308 {
7309 struct ipw_priv *priv =
7310 container_of(work, struct ipw_priv, qos_activate);
7311
7312 mutex_lock(&priv->mutex);
7313
7314 if (priv->status & STATUS_ASSOCIATED)
7315 ipw_qos_activate(priv, &(priv->assoc_network->qos_data));
7316
7317 mutex_unlock(&priv->mutex);
7318 }
7319
7320 static int ipw_handle_probe_response(struct net_device *dev,
7321 struct libipw_probe_response *resp,
7322 struct libipw_network *network)
7323 {
7324 struct ipw_priv *priv = libipw_priv(dev);
7325 int active_network = ((priv->status & STATUS_ASSOCIATED) &&
7326 (network == priv->assoc_network));
7327
7328 ipw_qos_handle_probe_response(priv, active_network, network);
7329
7330 return 0;
7331 }
7332
7333 static int ipw_handle_beacon(struct net_device *dev,
7334 struct libipw_beacon *resp,
7335 struct libipw_network *network)
7336 {
7337 struct ipw_priv *priv = libipw_priv(dev);
7338 int active_network = ((priv->status & STATUS_ASSOCIATED) &&
7339 (network == priv->assoc_network));
7340
7341 ipw_qos_handle_probe_response(priv, active_network, network);
7342
7343 return 0;
7344 }
7345
7346 static int ipw_handle_assoc_response(struct net_device *dev,
7347 struct libipw_assoc_response *resp,
7348 struct libipw_network *network)
7349 {
7350 struct ipw_priv *priv = libipw_priv(dev);
7351 ipw_qos_association_resp(priv, network);
7352 return 0;
7353 }
7354
7355 static int ipw_send_qos_params_command(struct ipw_priv *priv, struct libipw_qos_parameters
7356 *qos_param)
7357 {
7358 return ipw_send_cmd_pdu(priv, IPW_CMD_QOS_PARAMETERS,
7359 sizeof(*qos_param) * 3, qos_param);
7360 }
7361
7362 static int ipw_send_qos_info_command(struct ipw_priv *priv, struct libipw_qos_information_element
7363 *qos_param)
7364 {
7365 return ipw_send_cmd_pdu(priv, IPW_CMD_WME_INFO, sizeof(*qos_param),
7366 qos_param);
7367 }
7368
7369 #endif /* CONFIG_IPW2200_QOS */
7370
7371 static int ipw_associate_network(struct ipw_priv *priv,
7372 struct libipw_network *network,
7373 struct ipw_supported_rates *rates, int roaming)
7374 {
7375 int err;
7376 DECLARE_SSID_BUF(ssid);
7377
7378 if (priv->config & CFG_FIXED_RATE)
7379 ipw_set_fixed_rate(priv, network->mode);
7380
7381 if (!(priv->config & CFG_STATIC_ESSID)) {
7382 priv->essid_len = min(network->ssid_len,
7383 (u8) IW_ESSID_MAX_SIZE);
7384 memcpy(priv->essid, network->ssid, priv->essid_len);
7385 }
7386
7387 network->last_associate = jiffies;
7388
7389 memset(&priv->assoc_request, 0, sizeof(priv->assoc_request));
7390 priv->assoc_request.channel = network->channel;
7391 priv->assoc_request.auth_key = 0;
7392
7393 if ((priv->capability & CAP_PRIVACY_ON) &&
7394 (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY)) {
7395 priv->assoc_request.auth_type = AUTH_SHARED_KEY;
7396 priv->assoc_request.auth_key = priv->ieee->sec.active_key;
7397
7398 if (priv->ieee->sec.level == SEC_LEVEL_1)
7399 ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP);
7400
7401 } else if ((priv->capability & CAP_PRIVACY_ON) &&
7402 (priv->ieee->sec.auth_mode == WLAN_AUTH_LEAP))
7403 priv->assoc_request.auth_type = AUTH_LEAP;
7404 else
7405 priv->assoc_request.auth_type = AUTH_OPEN;
7406
7407 if (priv->ieee->wpa_ie_len) {
7408 priv->assoc_request.policy_support = cpu_to_le16(0x02); /* RSN active */
7409 ipw_set_rsn_capa(priv, priv->ieee->wpa_ie,
7410 priv->ieee->wpa_ie_len);
7411 }
7412
7413 /*
7414 * It is valid for our ieee device to support multiple modes, but
7415 * when it comes to associating to a given network we have to choose
7416 * just one mode.
7417 */
7418 if (network->mode & priv->ieee->mode & IEEE_A)
7419 priv->assoc_request.ieee_mode = IPW_A_MODE;
7420 else if (network->mode & priv->ieee->mode & IEEE_G)
7421 priv->assoc_request.ieee_mode = IPW_G_MODE;
7422 else if (network->mode & priv->ieee->mode & IEEE_B)
7423 priv->assoc_request.ieee_mode = IPW_B_MODE;
7424
7425 priv->assoc_request.capability = cpu_to_le16(network->capability);
7426 if ((network->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
7427 && !(priv->config & CFG_PREAMBLE_LONG)) {
7428 priv->assoc_request.preamble_length = DCT_FLAG_SHORT_PREAMBLE;
7429 } else {
7430 priv->assoc_request.preamble_length = DCT_FLAG_LONG_PREAMBLE;
7431
7432 /* Clear the short preamble if we won't be supporting it */
7433 priv->assoc_request.capability &=
7434 ~cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
7435 }
7436
7437 /* Clear capability bits that aren't used in Ad Hoc */
7438 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
7439 priv->assoc_request.capability &=
7440 ~cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
7441
7442 IPW_DEBUG_ASSOC("%sssocation attempt: '%s', channel %d, "
7443 "802.11%c [%d], %s[:%s], enc=%s%s%s%c%c\n",
7444 roaming ? "Rea" : "A",
7445 print_ssid(ssid, priv->essid, priv->essid_len),
7446 network->channel,
7447 ipw_modes[priv->assoc_request.ieee_mode],
7448 rates->num_rates,
7449 (priv->assoc_request.preamble_length ==
7450 DCT_FLAG_LONG_PREAMBLE) ? "long" : "short",
7451 network->capability &
7452 WLAN_CAPABILITY_SHORT_PREAMBLE ? "short" : "long",
7453 priv->capability & CAP_PRIVACY_ON ? "on " : "off",
7454 priv->capability & CAP_PRIVACY_ON ?
7455 (priv->capability & CAP_SHARED_KEY ? "(shared)" :
7456 "(open)") : "",
7457 priv->capability & CAP_PRIVACY_ON ? " key=" : "",
7458 priv->capability & CAP_PRIVACY_ON ?
7459 '1' + priv->ieee->sec.active_key : '.',
7460 priv->capability & CAP_PRIVACY_ON ? '.' : ' ');
7461
7462 priv->assoc_request.beacon_interval = cpu_to_le16(network->beacon_interval);
7463 if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
7464 (network->time_stamp[0] == 0) && (network->time_stamp[1] == 0)) {
7465 priv->assoc_request.assoc_type = HC_IBSS_START;
7466 priv->assoc_request.assoc_tsf_msw = 0;
7467 priv->assoc_request.assoc_tsf_lsw = 0;
7468 } else {
7469 if (unlikely(roaming))
7470 priv->assoc_request.assoc_type = HC_REASSOCIATE;
7471 else
7472 priv->assoc_request.assoc_type = HC_ASSOCIATE;
7473 priv->assoc_request.assoc_tsf_msw = cpu_to_le32(network->time_stamp[1]);
7474 priv->assoc_request.assoc_tsf_lsw = cpu_to_le32(network->time_stamp[0]);
7475 }
7476
7477 memcpy(priv->assoc_request.bssid, network->bssid, ETH_ALEN);
7478
7479 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
7480 memset(&priv->assoc_request.dest, 0xFF, ETH_ALEN);
7481 priv->assoc_request.atim_window = cpu_to_le16(network->atim_window);
7482 } else {
7483 memcpy(priv->assoc_request.dest, network->bssid, ETH_ALEN);
7484 priv->assoc_request.atim_window = 0;
7485 }
7486
7487 priv->assoc_request.listen_interval = cpu_to_le16(network->listen_interval);
7488
7489 err = ipw_send_ssid(priv, priv->essid, priv->essid_len);
7490 if (err) {
7491 IPW_DEBUG_HC("Attempt to send SSID command failed.\n");
7492 return err;
7493 }
7494
7495 rates->ieee_mode = priv->assoc_request.ieee_mode;
7496 rates->purpose = IPW_RATE_CONNECT;
7497 ipw_send_supported_rates(priv, rates);
7498
7499 if (priv->assoc_request.ieee_mode == IPW_G_MODE)
7500 priv->sys_config.dot11g_auto_detection = 1;
7501 else
7502 priv->sys_config.dot11g_auto_detection = 0;
7503
7504 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
7505 priv->sys_config.answer_broadcast_ssid_probe = 1;
7506 else
7507 priv->sys_config.answer_broadcast_ssid_probe = 0;
7508
7509 err = ipw_send_system_config(priv);
7510 if (err) {
7511 IPW_DEBUG_HC("Attempt to send sys config command failed.\n");
7512 return err;
7513 }
7514
7515 IPW_DEBUG_ASSOC("Association sensitivity: %d\n", network->stats.rssi);
7516 err = ipw_set_sensitivity(priv, network->stats.rssi + IPW_RSSI_TO_DBM);
7517 if (err) {
7518 IPW_DEBUG_HC("Attempt to send associate command failed.\n");
7519 return err;
7520 }
7521
7522 /*
7523 * If preemption is enabled, it is possible for the association
7524 * to complete before we return from ipw_send_associate. Therefore
7525 * we have to be sure and update our priviate data first.
7526 */
7527 priv->channel = network->channel;
7528 memcpy(priv->bssid, network->bssid, ETH_ALEN);
7529 priv->status |= STATUS_ASSOCIATING;
7530 priv->status &= ~STATUS_SECURITY_UPDATED;
7531
7532 priv->assoc_network = network;
7533
7534 #ifdef CONFIG_IPW2200_QOS
7535 ipw_qos_association(priv, network);
7536 #endif
7537
7538 err = ipw_send_associate(priv, &priv->assoc_request);
7539 if (err) {
7540 IPW_DEBUG_HC("Attempt to send associate command failed.\n");
7541 return err;
7542 }
7543
7544 IPW_DEBUG(IPW_DL_STATE, "associating: '%s' %pM \n",
7545 print_ssid(ssid, priv->essid, priv->essid_len),
7546 priv->bssid);
7547
7548 return 0;
7549 }
7550
7551 static void ipw_roam(void *data)
7552 {
7553 struct ipw_priv *priv = data;
7554 struct libipw_network *network = NULL;
7555 struct ipw_network_match match = {
7556 .network = priv->assoc_network
7557 };
7558
7559 /* The roaming process is as follows:
7560 *
7561 * 1. Missed beacon threshold triggers the roaming process by
7562 * setting the status ROAM bit and requesting a scan.
7563 * 2. When the scan completes, it schedules the ROAM work
7564 * 3. The ROAM work looks at all of the known networks for one that
7565 * is a better network than the currently associated. If none
7566 * found, the ROAM process is over (ROAM bit cleared)
7567 * 4. If a better network is found, a disassociation request is
7568 * sent.
7569 * 5. When the disassociation completes, the roam work is again
7570 * scheduled. The second time through, the driver is no longer
7571 * associated, and the newly selected network is sent an
7572 * association request.
7573 * 6. At this point ,the roaming process is complete and the ROAM
7574 * status bit is cleared.
7575 */
7576
7577 /* If we are no longer associated, and the roaming bit is no longer
7578 * set, then we are not actively roaming, so just return */
7579 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ROAMING)))
7580 return;
7581
7582 if (priv->status & STATUS_ASSOCIATED) {
7583 /* First pass through ROAM process -- look for a better
7584 * network */
7585 unsigned long flags;
7586 u8 rssi = priv->assoc_network->stats.rssi;
7587 priv->assoc_network->stats.rssi = -128;
7588 spin_lock_irqsave(&priv->ieee->lock, flags);
7589 list_for_each_entry(network, &priv->ieee->network_list, list) {
7590 if (network != priv->assoc_network)
7591 ipw_best_network(priv, &match, network, 1);
7592 }
7593 spin_unlock_irqrestore(&priv->ieee->lock, flags);
7594 priv->assoc_network->stats.rssi = rssi;
7595
7596 if (match.network == priv->assoc_network) {
7597 IPW_DEBUG_ASSOC("No better APs in this network to "
7598 "roam to.\n");
7599 priv->status &= ~STATUS_ROAMING;
7600 ipw_debug_config(priv);
7601 return;
7602 }
7603
7604 ipw_send_disassociate(priv, 1);
7605 priv->assoc_network = match.network;
7606
7607 return;
7608 }
7609
7610 /* Second pass through ROAM process -- request association */
7611 ipw_compatible_rates(priv, priv->assoc_network, &match.rates);
7612 ipw_associate_network(priv, priv->assoc_network, &match.rates, 1);
7613 priv->status &= ~STATUS_ROAMING;
7614 }
7615
7616 static void ipw_bg_roam(struct work_struct *work)
7617 {
7618 struct ipw_priv *priv =
7619 container_of(work, struct ipw_priv, roam);
7620 mutex_lock(&priv->mutex);
7621 ipw_roam(priv);
7622 mutex_unlock(&priv->mutex);
7623 }
7624
7625 static int ipw_associate(void *data)
7626 {
7627 struct ipw_priv *priv = data;
7628
7629 struct libipw_network *network = NULL;
7630 struct ipw_network_match match = {
7631 .network = NULL
7632 };
7633 struct ipw_supported_rates *rates;
7634 struct list_head *element;
7635 unsigned long flags;
7636 DECLARE_SSID_BUF(ssid);
7637
7638 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
7639 IPW_DEBUG_ASSOC("Not attempting association (monitor mode)\n");
7640 return 0;
7641 }
7642
7643 if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
7644 IPW_DEBUG_ASSOC("Not attempting association (already in "
7645 "progress)\n");
7646 return 0;
7647 }
7648
7649 if (priv->status & STATUS_DISASSOCIATING) {
7650 IPW_DEBUG_ASSOC("Not attempting association (in "
7651 "disassociating)\n ");
7652 queue_work(priv->workqueue, &priv->associate);
7653 return 0;
7654 }
7655
7656 if (!ipw_is_init(priv) || (priv->status & STATUS_SCANNING)) {
7657 IPW_DEBUG_ASSOC("Not attempting association (scanning or not "
7658 "initialized)\n");
7659 return 0;
7660 }
7661
7662 if (!(priv->config & CFG_ASSOCIATE) &&
7663 !(priv->config & (CFG_STATIC_ESSID | CFG_STATIC_BSSID))) {
7664 IPW_DEBUG_ASSOC("Not attempting association (associate=0)\n");
7665 return 0;
7666 }
7667
7668 /* Protect our use of the network_list */
7669 spin_lock_irqsave(&priv->ieee->lock, flags);
7670 list_for_each_entry(network, &priv->ieee->network_list, list)
7671 ipw_best_network(priv, &match, network, 0);
7672
7673 network = match.network;
7674 rates = &match.rates;
7675
7676 if (network == NULL &&
7677 priv->ieee->iw_mode == IW_MODE_ADHOC &&
7678 priv->config & CFG_ADHOC_CREATE &&
7679 priv->config & CFG_STATIC_ESSID &&
7680 priv->config & CFG_STATIC_CHANNEL) {
7681 /* Use oldest network if the free list is empty */
7682 if (list_empty(&priv->ieee->network_free_list)) {
7683 struct libipw_network *oldest = NULL;
7684 struct libipw_network *target;
7685
7686 list_for_each_entry(target, &priv->ieee->network_list, list) {
7687 if ((oldest == NULL) ||
7688 (target->last_scanned < oldest->last_scanned))
7689 oldest = target;
7690 }
7691
7692 /* If there are no more slots, expire the oldest */
7693 list_del(&oldest->list);
7694 target = oldest;
7695 IPW_DEBUG_ASSOC("Expired '%s' (%pM) from "
7696 "network list.\n",
7697 print_ssid(ssid, target->ssid,
7698 target->ssid_len),
7699 target->bssid);
7700 list_add_tail(&target->list,
7701 &priv->ieee->network_free_list);
7702 }
7703
7704 element = priv->ieee->network_free_list.next;
7705 network = list_entry(element, struct libipw_network, list);
7706 ipw_adhoc_create(priv, network);
7707 rates = &priv->rates;
7708 list_del(element);
7709 list_add_tail(&network->list, &priv->ieee->network_list);
7710 }
7711 spin_unlock_irqrestore(&priv->ieee->lock, flags);
7712
7713 /* If we reached the end of the list, then we don't have any valid
7714 * matching APs */
7715 if (!network) {
7716 ipw_debug_config(priv);
7717
7718 if (!(priv->status & STATUS_SCANNING)) {
7719 if (!(priv->config & CFG_SPEED_SCAN))
7720 queue_delayed_work(priv->workqueue,
7721 &priv->request_scan,
7722 SCAN_INTERVAL);
7723 else
7724 queue_delayed_work(priv->workqueue,
7725 &priv->request_scan, 0);
7726 }
7727
7728 return 0;
7729 }
7730
7731 ipw_associate_network(priv, network, rates, 0);
7732
7733 return 1;
7734 }
7735
7736 static void ipw_bg_associate(struct work_struct *work)
7737 {
7738 struct ipw_priv *priv =
7739 container_of(work, struct ipw_priv, associate);
7740 mutex_lock(&priv->mutex);
7741 ipw_associate(priv);
7742 mutex_unlock(&priv->mutex);
7743 }
7744
7745 static void ipw_rebuild_decrypted_skb(struct ipw_priv *priv,
7746 struct sk_buff *skb)
7747 {
7748 struct ieee80211_hdr *hdr;
7749 u16 fc;
7750
7751 hdr = (struct ieee80211_hdr *)skb->data;
7752 fc = le16_to_cpu(hdr->frame_control);
7753 if (!(fc & IEEE80211_FCTL_PROTECTED))
7754 return;
7755
7756 fc &= ~IEEE80211_FCTL_PROTECTED;
7757 hdr->frame_control = cpu_to_le16(fc);
7758 switch (priv->ieee->sec.level) {
7759 case SEC_LEVEL_3:
7760 /* Remove CCMP HDR */
7761 memmove(skb->data + LIBIPW_3ADDR_LEN,
7762 skb->data + LIBIPW_3ADDR_LEN + 8,
7763 skb->len - LIBIPW_3ADDR_LEN - 8);
7764 skb_trim(skb, skb->len - 16); /* CCMP_HDR_LEN + CCMP_MIC_LEN */
7765 break;
7766 case SEC_LEVEL_2:
7767 break;
7768 case SEC_LEVEL_1:
7769 /* Remove IV */
7770 memmove(skb->data + LIBIPW_3ADDR_LEN,
7771 skb->data + LIBIPW_3ADDR_LEN + 4,
7772 skb->len - LIBIPW_3ADDR_LEN - 4);
7773 skb_trim(skb, skb->len - 8); /* IV + ICV */
7774 break;
7775 case SEC_LEVEL_0:
7776 break;
7777 default:
7778 printk(KERN_ERR "Unknown security level %d\n",
7779 priv->ieee->sec.level);
7780 break;
7781 }
7782 }
7783
7784 static void ipw_handle_data_packet(struct ipw_priv *priv,
7785 struct ipw_rx_mem_buffer *rxb,
7786 struct libipw_rx_stats *stats)
7787 {
7788 struct net_device *dev = priv->net_dev;
7789 struct libipw_hdr_4addr *hdr;
7790 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
7791
7792 /* We received data from the HW, so stop the watchdog */
7793 dev->trans_start = jiffies;
7794
7795 /* We only process data packets if the
7796 * interface is open */
7797 if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) >
7798 skb_tailroom(rxb->skb))) {
7799 dev->stats.rx_errors++;
7800 priv->wstats.discard.misc++;
7801 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
7802 return;
7803 } else if (unlikely(!netif_running(priv->net_dev))) {
7804 dev->stats.rx_dropped++;
7805 priv->wstats.discard.misc++;
7806 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
7807 return;
7808 }
7809
7810 /* Advance skb->data to the start of the actual payload */
7811 skb_reserve(rxb->skb, offsetof(struct ipw_rx_packet, u.frame.data));
7812
7813 /* Set the size of the skb to the size of the frame */
7814 skb_put(rxb->skb, le16_to_cpu(pkt->u.frame.length));
7815
7816 IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
7817
7818 /* HW decrypt will not clear the WEP bit, MIC, PN, etc. */
7819 hdr = (struct libipw_hdr_4addr *)rxb->skb->data;
7820 if (priv->ieee->iw_mode != IW_MODE_MONITOR &&
7821 (is_multicast_ether_addr(hdr->addr1) ?
7822 !priv->ieee->host_mc_decrypt : !priv->ieee->host_decrypt))
7823 ipw_rebuild_decrypted_skb(priv, rxb->skb);
7824
7825 if (!libipw_rx(priv->ieee, rxb->skb, stats))
7826 dev->stats.rx_errors++;
7827 else { /* libipw_rx succeeded, so it now owns the SKB */
7828 rxb->skb = NULL;
7829 __ipw_led_activity_on(priv);
7830 }
7831 }
7832
7833 #ifdef CONFIG_IPW2200_RADIOTAP
7834 static void ipw_handle_data_packet_monitor(struct ipw_priv *priv,
7835 struct ipw_rx_mem_buffer *rxb,
7836 struct libipw_rx_stats *stats)
7837 {
7838 struct net_device *dev = priv->net_dev;
7839 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
7840 struct ipw_rx_frame *frame = &pkt->u.frame;
7841
7842 /* initial pull of some data */
7843 u16 received_channel = frame->received_channel;
7844 u8 antennaAndPhy = frame->antennaAndPhy;
7845 s8 antsignal = frame->rssi_dbm - IPW_RSSI_TO_DBM; /* call it signed anyhow */
7846 u16 pktrate = frame->rate;
7847
7848 /* Magic struct that slots into the radiotap header -- no reason
7849 * to build this manually element by element, we can write it much
7850 * more efficiently than we can parse it. ORDER MATTERS HERE */
7851 struct ipw_rt_hdr *ipw_rt;
7852
7853 short len = le16_to_cpu(pkt->u.frame.length);
7854
7855 /* We received data from the HW, so stop the watchdog */
7856 dev->trans_start = jiffies;
7857
7858 /* We only process data packets if the
7859 * interface is open */
7860 if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) >
7861 skb_tailroom(rxb->skb))) {
7862 dev->stats.rx_errors++;
7863 priv->wstats.discard.misc++;
7864 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
7865 return;
7866 } else if (unlikely(!netif_running(priv->net_dev))) {
7867 dev->stats.rx_dropped++;
7868 priv->wstats.discard.misc++;
7869 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
7870 return;
7871 }
7872
7873 /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use
7874 * that now */
7875 if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) {
7876 /* FIXME: Should alloc bigger skb instead */
7877 dev->stats.rx_dropped++;
7878 priv->wstats.discard.misc++;
7879 IPW_DEBUG_DROP("Dropping too large packet in monitor\n");
7880 return;
7881 }
7882
7883 /* copy the frame itself */
7884 memmove(rxb->skb->data + sizeof(struct ipw_rt_hdr),
7885 rxb->skb->data + IPW_RX_FRAME_SIZE, len);
7886
7887 ipw_rt = (struct ipw_rt_hdr *)rxb->skb->data;
7888
7889 ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
7890 ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */
7891 ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct ipw_rt_hdr)); /* total header+data */
7892
7893 /* Big bitfield of all the fields we provide in radiotap */
7894 ipw_rt->rt_hdr.it_present = cpu_to_le32(
7895 (1 << IEEE80211_RADIOTAP_TSFT) |
7896 (1 << IEEE80211_RADIOTAP_FLAGS) |
7897 (1 << IEEE80211_RADIOTAP_RATE) |
7898 (1 << IEEE80211_RADIOTAP_CHANNEL) |
7899 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
7900 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |
7901 (1 << IEEE80211_RADIOTAP_ANTENNA));
7902
7903 /* Zero the flags, we'll add to them as we go */
7904 ipw_rt->rt_flags = 0;
7905 ipw_rt->rt_tsf = (u64)(frame->parent_tsf[3] << 24 |
7906 frame->parent_tsf[2] << 16 |
7907 frame->parent_tsf[1] << 8 |
7908 frame->parent_tsf[0]);
7909
7910 /* Convert signal to DBM */
7911 ipw_rt->rt_dbmsignal = antsignal;
7912 ipw_rt->rt_dbmnoise = (s8) le16_to_cpu(frame->noise);
7913
7914 /* Convert the channel data and set the flags */
7915 ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(received_channel));
7916 if (received_channel > 14) { /* 802.11a */
7917 ipw_rt->rt_chbitmask =
7918 cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ));
7919 } else if (antennaAndPhy & 32) { /* 802.11b */
7920 ipw_rt->rt_chbitmask =
7921 cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ));
7922 } else { /* 802.11g */
7923 ipw_rt->rt_chbitmask =
7924 cpu_to_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ);
7925 }
7926
7927 /* set the rate in multiples of 500k/s */
7928 switch (pktrate) {
7929 case IPW_TX_RATE_1MB:
7930 ipw_rt->rt_rate = 2;
7931 break;
7932 case IPW_TX_RATE_2MB:
7933 ipw_rt->rt_rate = 4;
7934 break;
7935 case IPW_TX_RATE_5MB:
7936 ipw_rt->rt_rate = 10;
7937 break;
7938 case IPW_TX_RATE_6MB:
7939 ipw_rt->rt_rate = 12;
7940 break;
7941 case IPW_TX_RATE_9MB:
7942 ipw_rt->rt_rate = 18;
7943 break;
7944 case IPW_TX_RATE_11MB:
7945 ipw_rt->rt_rate = 22;
7946 break;
7947 case IPW_TX_RATE_12MB:
7948 ipw_rt->rt_rate = 24;
7949 break;
7950 case IPW_TX_RATE_18MB:
7951 ipw_rt->rt_rate = 36;
7952 break;
7953 case IPW_TX_RATE_24MB:
7954 ipw_rt->rt_rate = 48;
7955 break;
7956 case IPW_TX_RATE_36MB:
7957 ipw_rt->rt_rate = 72;
7958 break;
7959 case IPW_TX_RATE_48MB:
7960 ipw_rt->rt_rate = 96;
7961 break;
7962 case IPW_TX_RATE_54MB:
7963 ipw_rt->rt_rate = 108;
7964 break;
7965 default:
7966 ipw_rt->rt_rate = 0;
7967 break;
7968 }
7969
7970 /* antenna number */
7971 ipw_rt->rt_antenna = (antennaAndPhy & 3); /* Is this right? */
7972
7973 /* set the preamble flag if we have it */
7974 if ((antennaAndPhy & 64))
7975 ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
7976
7977 /* Set the size of the skb to the size of the frame */
7978 skb_put(rxb->skb, len + sizeof(struct ipw_rt_hdr));
7979
7980 IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
7981
7982 if (!libipw_rx(priv->ieee, rxb->skb, stats))
7983 dev->stats.rx_errors++;
7984 else { /* libipw_rx succeeded, so it now owns the SKB */
7985 rxb->skb = NULL;
7986 /* no LED during capture */
7987 }
7988 }
7989 #endif
7990
7991 #ifdef CONFIG_IPW2200_PROMISCUOUS
7992 #define libipw_is_probe_response(fc) \
7993 ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT && \
7994 (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP )
7995
7996 #define libipw_is_management(fc) \
7997 ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
7998
7999 #define libipw_is_control(fc) \
8000 ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL)
8001
8002 #define libipw_is_data(fc) \
8003 ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)
8004
8005 #define libipw_is_assoc_request(fc) \
8006 ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ)
8007
8008 #define libipw_is_reassoc_request(fc) \
8009 ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ)
8010
8011 static void ipw_handle_promiscuous_rx(struct ipw_priv *priv,
8012 struct ipw_rx_mem_buffer *rxb,
8013 struct libipw_rx_stats *stats)
8014 {
8015 struct net_device *dev = priv->prom_net_dev;
8016 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
8017 struct ipw_rx_frame *frame = &pkt->u.frame;
8018 struct ipw_rt_hdr *ipw_rt;
8019
8020 /* First cache any information we need before we overwrite
8021 * the information provided in the skb from the hardware */
8022 struct ieee80211_hdr *hdr;
8023 u16 channel = frame->received_channel;
8024 u8 phy_flags = frame->antennaAndPhy;
8025 s8 signal = frame->rssi_dbm - IPW_RSSI_TO_DBM;
8026 s8 noise = (s8) le16_to_cpu(frame->noise);
8027 u8 rate = frame->rate;
8028 short len = le16_to_cpu(pkt->u.frame.length);
8029 struct sk_buff *skb;
8030 int hdr_only = 0;
8031 u16 filter = priv->prom_priv->filter;
8032
8033 /* If the filter is set to not include Rx frames then return */
8034 if (filter & IPW_PROM_NO_RX)
8035 return;
8036
8037 /* We received data from the HW, so stop the watchdog */
8038 dev->trans_start = jiffies;
8039
8040 if (unlikely((len + IPW_RX_FRAME_SIZE) > skb_tailroom(rxb->skb))) {
8041 dev->stats.rx_errors++;
8042 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
8043 return;
8044 }
8045
8046 /* We only process data packets if the interface is open */
8047 if (unlikely(!netif_running(dev))) {
8048 dev->stats.rx_dropped++;
8049 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
8050 return;
8051 }
8052
8053 /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use
8054 * that now */
8055 if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) {
8056 /* FIXME: Should alloc bigger skb instead */
8057 dev->stats.rx_dropped++;
8058 IPW_DEBUG_DROP("Dropping too large packet in monitor\n");
8059 return;
8060 }
8061
8062 hdr = (void *)rxb->skb->data + IPW_RX_FRAME_SIZE;
8063 if (libipw_is_management(le16_to_cpu(hdr->frame_control))) {
8064 if (filter & IPW_PROM_NO_MGMT)
8065 return;
8066 if (filter & IPW_PROM_MGMT_HEADER_ONLY)
8067 hdr_only = 1;
8068 } else if (libipw_is_control(le16_to_cpu(hdr->frame_control))) {
8069 if (filter & IPW_PROM_NO_CTL)
8070 return;
8071 if (filter & IPW_PROM_CTL_HEADER_ONLY)
8072 hdr_only = 1;
8073 } else if (libipw_is_data(le16_to_cpu(hdr->frame_control))) {
8074 if (filter & IPW_PROM_NO_DATA)
8075 return;
8076 if (filter & IPW_PROM_DATA_HEADER_ONLY)
8077 hdr_only = 1;
8078 }
8079
8080 /* Copy the SKB since this is for the promiscuous side */
8081 skb = skb_copy(rxb->skb, GFP_ATOMIC);
8082 if (skb == NULL) {
8083 IPW_ERROR("skb_clone failed for promiscuous copy.\n");
8084 return;
8085 }
8086
8087 /* copy the frame data to write after where the radiotap header goes */
8088 ipw_rt = (void *)skb->data;
8089
8090 if (hdr_only)
8091 len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_control));
8092
8093 memcpy(ipw_rt->payload, hdr, len);
8094
8095 ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
8096 ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */
8097 ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(*ipw_rt)); /* total header+data */
8098
8099 /* Set the size of the skb to the size of the frame */
8100 skb_put(skb, sizeof(*ipw_rt) + len);
8101
8102 /* Big bitfield of all the fields we provide in radiotap */
8103 ipw_rt->rt_hdr.it_present = cpu_to_le32(
8104 (1 << IEEE80211_RADIOTAP_TSFT) |
8105 (1 << IEEE80211_RADIOTAP_FLAGS) |
8106 (1 << IEEE80211_RADIOTAP_RATE) |
8107 (1 << IEEE80211_RADIOTAP_CHANNEL) |
8108 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
8109 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |
8110 (1 << IEEE80211_RADIOTAP_ANTENNA));
8111
8112 /* Zero the flags, we'll add to them as we go */
8113 ipw_rt->rt_flags = 0;
8114 ipw_rt->rt_tsf = (u64)(frame->parent_tsf[3] << 24 |
8115 frame->parent_tsf[2] << 16 |
8116 frame->parent_tsf[1] << 8 |
8117 frame->parent_tsf[0]);
8118
8119 /* Convert to DBM */
8120 ipw_rt->rt_dbmsignal = signal;
8121 ipw_rt->rt_dbmnoise = noise;
8122
8123 /* Convert the channel data and set the flags */
8124 ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(channel));
8125 if (channel > 14) { /* 802.11a */
8126 ipw_rt->rt_chbitmask =
8127 cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ));
8128 } else if (phy_flags & (1 << 5)) { /* 802.11b */
8129 ipw_rt->rt_chbitmask =
8130 cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ));
8131 } else { /* 802.11g */
8132 ipw_rt->rt_chbitmask =
8133 cpu_to_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ);
8134 }
8135
8136 /* set the rate in multiples of 500k/s */
8137 switch (rate) {
8138 case IPW_TX_RATE_1MB:
8139 ipw_rt->rt_rate = 2;
8140 break;
8141 case IPW_TX_RATE_2MB:
8142 ipw_rt->rt_rate = 4;
8143 break;
8144 case IPW_TX_RATE_5MB:
8145 ipw_rt->rt_rate = 10;
8146 break;
8147 case IPW_TX_RATE_6MB:
8148 ipw_rt->rt_rate = 12;
8149 break;
8150 case IPW_TX_RATE_9MB:
8151 ipw_rt->rt_rate = 18;
8152 break;
8153 case IPW_TX_RATE_11MB:
8154 ipw_rt->rt_rate = 22;
8155 break;
8156 case IPW_TX_RATE_12MB:
8157 ipw_rt->rt_rate = 24;
8158 break;
8159 case IPW_TX_RATE_18MB:
8160 ipw_rt->rt_rate = 36;
8161 break;
8162 case IPW_TX_RATE_24MB:
8163 ipw_rt->rt_rate = 48;
8164 break;
8165 case IPW_TX_RATE_36MB:
8166 ipw_rt->rt_rate = 72;
8167 break;
8168 case IPW_TX_RATE_48MB:
8169 ipw_rt->rt_rate = 96;
8170 break;
8171 case IPW_TX_RATE_54MB:
8172 ipw_rt->rt_rate = 108;
8173 break;
8174 default:
8175 ipw_rt->rt_rate = 0;
8176 break;
8177 }
8178
8179 /* antenna number */
8180 ipw_rt->rt_antenna = (phy_flags & 3);
8181
8182 /* set the preamble flag if we have it */
8183 if (phy_flags & (1 << 6))
8184 ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
8185
8186 IPW_DEBUG_RX("Rx packet of %d bytes.\n", skb->len);
8187
8188 if (!libipw_rx(priv->prom_priv->ieee, skb, stats)) {
8189 dev->stats.rx_errors++;
8190 dev_kfree_skb_any(skb);
8191 }
8192 }
8193 #endif
8194
8195 static int is_network_packet(struct ipw_priv *priv,
8196 struct libipw_hdr_4addr *header)
8197 {
8198 /* Filter incoming packets to determine if they are targetted toward
8199 * this network, discarding packets coming from ourselves */
8200 switch (priv->ieee->iw_mode) {
8201 case IW_MODE_ADHOC: /* Header: Dest. | Source | BSSID */
8202 /* packets from our adapter are dropped (echo) */
8203 if (!memcmp(header->addr2, priv->net_dev->dev_addr, ETH_ALEN))
8204 return 0;
8205
8206 /* {broad,multi}cast packets to our BSSID go through */
8207 if (is_multicast_ether_addr(header->addr1))
8208 return !memcmp(header->addr3, priv->bssid, ETH_ALEN);
8209
8210 /* packets to our adapter go through */
8211 return !memcmp(header->addr1, priv->net_dev->dev_addr,
8212 ETH_ALEN);
8213
8214 case IW_MODE_INFRA: /* Header: Dest. | BSSID | Source */
8215 /* packets from our adapter are dropped (echo) */
8216 if (!memcmp(header->addr3, priv->net_dev->dev_addr, ETH_ALEN))
8217 return 0;
8218
8219 /* {broad,multi}cast packets to our BSS go through */
8220 if (is_multicast_ether_addr(header->addr1))
8221 return !memcmp(header->addr2, priv->bssid, ETH_ALEN);
8222
8223 /* packets to our adapter go through */
8224 return !memcmp(header->addr1, priv->net_dev->dev_addr,
8225 ETH_ALEN);
8226 }
8227
8228 return 1;
8229 }
8230
8231 #define IPW_PACKET_RETRY_TIME HZ
8232
8233 static int is_duplicate_packet(struct ipw_priv *priv,
8234 struct libipw_hdr_4addr *header)
8235 {
8236 u16 sc = le16_to_cpu(header->seq_ctl);
8237 u16 seq = WLAN_GET_SEQ_SEQ(sc);
8238 u16 frag = WLAN_GET_SEQ_FRAG(sc);
8239 u16 *last_seq, *last_frag;
8240 unsigned long *last_time;
8241
8242 switch (priv->ieee->iw_mode) {
8243 case IW_MODE_ADHOC:
8244 {
8245 struct list_head *p;
8246 struct ipw_ibss_seq *entry = NULL;
8247 u8 *mac = header->addr2;
8248 int index = mac[5] % IPW_IBSS_MAC_HASH_SIZE;
8249
8250 __list_for_each(p, &priv->ibss_mac_hash[index]) {
8251 entry =
8252 list_entry(p, struct ipw_ibss_seq, list);
8253 if (!memcmp(entry->mac, mac, ETH_ALEN))
8254 break;
8255 }
8256 if (p == &priv->ibss_mac_hash[index]) {
8257 entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
8258 if (!entry) {
8259 IPW_ERROR
8260 ("Cannot malloc new mac entry\n");
8261 return 0;
8262 }
8263 memcpy(entry->mac, mac, ETH_ALEN);
8264 entry->seq_num = seq;
8265 entry->frag_num = frag;
8266 entry->packet_time = jiffies;
8267 list_add(&entry->list,
8268 &priv->ibss_mac_hash[index]);
8269 return 0;
8270 }
8271 last_seq = &entry->seq_num;
8272 last_frag = &entry->frag_num;
8273 last_time = &entry->packet_time;
8274 break;
8275 }
8276 case IW_MODE_INFRA:
8277 last_seq = &priv->last_seq_num;
8278 last_frag = &priv->last_frag_num;
8279 last_time = &priv->last_packet_time;
8280 break;
8281 default:
8282 return 0;
8283 }
8284 if ((*last_seq == seq) &&
8285 time_after(*last_time + IPW_PACKET_RETRY_TIME, jiffies)) {
8286 if (*last_frag == frag)
8287 goto drop;
8288 if (*last_frag + 1 != frag)
8289 /* out-of-order fragment */
8290 goto drop;
8291 } else
8292 *last_seq = seq;
8293
8294 *last_frag = frag;
8295 *last_time = jiffies;
8296 return 0;
8297
8298 drop:
8299 /* Comment this line now since we observed the card receives
8300 * duplicate packets but the FCTL_RETRY bit is not set in the
8301 * IBSS mode with fragmentation enabled.
8302 BUG_ON(!(le16_to_cpu(header->frame_control) & IEEE80211_FCTL_RETRY)); */
8303 return 1;
8304 }
8305
8306 static void ipw_handle_mgmt_packet(struct ipw_priv *priv,
8307 struct ipw_rx_mem_buffer *rxb,
8308 struct libipw_rx_stats *stats)
8309 {
8310 struct sk_buff *skb = rxb->skb;
8311 struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)skb->data;
8312 struct libipw_hdr_4addr *header = (struct libipw_hdr_4addr *)
8313 (skb->data + IPW_RX_FRAME_SIZE);
8314
8315 libipw_rx_mgt(priv->ieee, header, stats);
8316
8317 if (priv->ieee->iw_mode == IW_MODE_ADHOC &&
8318 ((WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) ==
8319 IEEE80211_STYPE_PROBE_RESP) ||
8320 (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) ==
8321 IEEE80211_STYPE_BEACON))) {
8322 if (!memcmp(header->addr3, priv->bssid, ETH_ALEN))
8323 ipw_add_station(priv, header->addr2);
8324 }
8325
8326 if (priv->config & CFG_NET_STATS) {
8327 IPW_DEBUG_HC("sending stat packet\n");
8328
8329 /* Set the size of the skb to the size of the full
8330 * ipw header and 802.11 frame */
8331 skb_put(skb, le16_to_cpu(pkt->u.frame.length) +
8332 IPW_RX_FRAME_SIZE);
8333
8334 /* Advance past the ipw packet header to the 802.11 frame */
8335 skb_pull(skb, IPW_RX_FRAME_SIZE);
8336
8337 /* Push the libipw_rx_stats before the 802.11 frame */
8338 memcpy(skb_push(skb, sizeof(*stats)), stats, sizeof(*stats));
8339
8340 skb->dev = priv->ieee->dev;
8341
8342 /* Point raw at the libipw_stats */
8343 skb_reset_mac_header(skb);
8344
8345 skb->pkt_type = PACKET_OTHERHOST;
8346 skb->protocol = cpu_to_be16(ETH_P_80211_STATS);
8347 memset(skb->cb, 0, sizeof(rxb->skb->cb));
8348 netif_rx(skb);
8349 rxb->skb = NULL;
8350 }
8351 }
8352
8353 /*
8354 * Main entry function for recieving a packet with 80211 headers. This
8355 * should be called when ever the FW has notified us that there is a new
8356 * skb in the recieve queue.
8357 */
8358 static void ipw_rx(struct ipw_priv *priv)
8359 {
8360 struct ipw_rx_mem_buffer *rxb;
8361 struct ipw_rx_packet *pkt;
8362 struct libipw_hdr_4addr *header;
8363 u32 r, w, i;
8364 u8 network_packet;
8365 u8 fill_rx = 0;
8366
8367 r = ipw_read32(priv, IPW_RX_READ_INDEX);
8368 w = ipw_read32(priv, IPW_RX_WRITE_INDEX);
8369 i = priv->rxq->read;
8370
8371 if (ipw_rx_queue_space (priv->rxq) > (RX_QUEUE_SIZE / 2))
8372 fill_rx = 1;
8373
8374 while (i != r) {
8375 rxb = priv->rxq->queue[i];
8376 if (unlikely(rxb == NULL)) {
8377 printk(KERN_CRIT "Queue not allocated!\n");
8378 break;
8379 }
8380 priv->rxq->queue[i] = NULL;
8381
8382 pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
8383 IPW_RX_BUF_SIZE,
8384 PCI_DMA_FROMDEVICE);
8385
8386 pkt = (struct ipw_rx_packet *)rxb->skb->data;
8387 IPW_DEBUG_RX("Packet: type=%02X seq=%02X bits=%02X\n",
8388 pkt->header.message_type,
8389 pkt->header.rx_seq_num, pkt->header.control_bits);
8390
8391 switch (pkt->header.message_type) {
8392 case RX_FRAME_TYPE: /* 802.11 frame */ {
8393 struct libipw_rx_stats stats = {
8394 .rssi = pkt->u.frame.rssi_dbm -
8395 IPW_RSSI_TO_DBM,
8396 .signal =
8397 pkt->u.frame.rssi_dbm -
8398 IPW_RSSI_TO_DBM + 0x100,
8399 .noise =
8400 le16_to_cpu(pkt->u.frame.noise),
8401 .rate = pkt->u.frame.rate,
8402 .mac_time = jiffies,
8403 .received_channel =
8404 pkt->u.frame.received_channel,
8405 .freq =
8406 (pkt->u.frame.
8407 control & (1 << 0)) ?
8408 LIBIPW_24GHZ_BAND :
8409 LIBIPW_52GHZ_BAND,
8410 .len = le16_to_cpu(pkt->u.frame.length),
8411 };
8412
8413 if (stats.rssi != 0)
8414 stats.mask |= LIBIPW_STATMASK_RSSI;
8415 if (stats.signal != 0)
8416 stats.mask |= LIBIPW_STATMASK_SIGNAL;
8417 if (stats.noise != 0)
8418 stats.mask |= LIBIPW_STATMASK_NOISE;
8419 if (stats.rate != 0)
8420 stats.mask |= LIBIPW_STATMASK_RATE;
8421
8422 priv->rx_packets++;
8423
8424 #ifdef CONFIG_IPW2200_PROMISCUOUS
8425 if (priv->prom_net_dev && netif_running(priv->prom_net_dev))
8426 ipw_handle_promiscuous_rx(priv, rxb, &stats);
8427 #endif
8428
8429 #ifdef CONFIG_IPW2200_MONITOR
8430 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
8431 #ifdef CONFIG_IPW2200_RADIOTAP
8432
8433 ipw_handle_data_packet_monitor(priv,
8434 rxb,
8435 &stats);
8436 #else
8437 ipw_handle_data_packet(priv, rxb,
8438 &stats);
8439 #endif
8440 break;
8441 }
8442 #endif
8443
8444 header =
8445 (struct libipw_hdr_4addr *)(rxb->skb->
8446 data +
8447 IPW_RX_FRAME_SIZE);
8448 /* TODO: Check Ad-Hoc dest/source and make sure
8449 * that we are actually parsing these packets
8450 * correctly -- we should probably use the
8451 * frame control of the packet and disregard
8452 * the current iw_mode */
8453
8454 network_packet =
8455 is_network_packet(priv, header);
8456 if (network_packet && priv->assoc_network) {
8457 priv->assoc_network->stats.rssi =
8458 stats.rssi;
8459 priv->exp_avg_rssi =
8460 exponential_average(priv->exp_avg_rssi,
8461 stats.rssi, DEPTH_RSSI);
8462 }
8463
8464 IPW_DEBUG_RX("Frame: len=%u\n",
8465 le16_to_cpu(pkt->u.frame.length));
8466
8467 if (le16_to_cpu(pkt->u.frame.length) <
8468 libipw_get_hdrlen(le16_to_cpu(
8469 header->frame_ctl))) {
8470 IPW_DEBUG_DROP
8471 ("Received packet is too small. "
8472 "Dropping.\n");
8473 priv->net_dev->stats.rx_errors++;
8474 priv->wstats.discard.misc++;
8475 break;
8476 }
8477
8478 switch (WLAN_FC_GET_TYPE
8479 (le16_to_cpu(header->frame_ctl))) {
8480
8481 case IEEE80211_FTYPE_MGMT:
8482 ipw_handle_mgmt_packet(priv, rxb,
8483 &stats);
8484 break;
8485
8486 case IEEE80211_FTYPE_CTL:
8487 break;
8488
8489 case IEEE80211_FTYPE_DATA:
8490 if (unlikely(!network_packet ||
8491 is_duplicate_packet(priv,
8492 header)))
8493 {
8494 IPW_DEBUG_DROP("Dropping: "
8495 "%pM, "
8496 "%pM, "
8497 "%pM\n",
8498 header->addr1,
8499 header->addr2,
8500 header->addr3);
8501 break;
8502 }
8503
8504 ipw_handle_data_packet(priv, rxb,
8505 &stats);
8506
8507 break;
8508 }
8509 break;
8510 }
8511
8512 case RX_HOST_NOTIFICATION_TYPE:{
8513 IPW_DEBUG_RX
8514 ("Notification: subtype=%02X flags=%02X size=%d\n",
8515 pkt->u.notification.subtype,
8516 pkt->u.notification.flags,
8517 le16_to_cpu(pkt->u.notification.size));
8518 ipw_rx_notification(priv, &pkt->u.notification);
8519 break;
8520 }
8521
8522 default:
8523 IPW_DEBUG_RX("Bad Rx packet of type %d\n",
8524 pkt->header.message_type);
8525 break;
8526 }
8527
8528 /* For now we just don't re-use anything. We can tweak this
8529 * later to try and re-use notification packets and SKBs that
8530 * fail to Rx correctly */
8531 if (rxb->skb != NULL) {
8532 dev_kfree_skb_any(rxb->skb);
8533 rxb->skb = NULL;
8534 }
8535
8536 pci_unmap_single(priv->pci_dev, rxb->dma_addr,
8537 IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
8538 list_add_tail(&rxb->list, &priv->rxq->rx_used);
8539
8540 i = (i + 1) % RX_QUEUE_SIZE;
8541
8542 /* If there are a lot of unsued frames, restock the Rx queue
8543 * so the ucode won't assert */
8544 if (fill_rx) {
8545 priv->rxq->read = i;
8546 ipw_rx_queue_replenish(priv);
8547 }
8548 }
8549
8550 /* Backtrack one entry */
8551 priv->rxq->read = i;
8552 ipw_rx_queue_restock(priv);
8553 }
8554
8555 #define DEFAULT_RTS_THRESHOLD 2304U
8556 #define MIN_RTS_THRESHOLD 1U
8557 #define MAX_RTS_THRESHOLD 2304U
8558 #define DEFAULT_BEACON_INTERVAL 100U
8559 #define DEFAULT_SHORT_RETRY_LIMIT 7U
8560 #define DEFAULT_LONG_RETRY_LIMIT 4U
8561
8562 /**
8563 * ipw_sw_reset
8564 * @option: options to control different reset behaviour
8565 * 0 = reset everything except the 'disable' module_param
8566 * 1 = reset everything and print out driver info (for probe only)
8567 * 2 = reset everything
8568 */
8569 static int ipw_sw_reset(struct ipw_priv *priv, int option)
8570 {
8571 int band, modulation;
8572 int old_mode = priv->ieee->iw_mode;
8573
8574 /* Initialize module parameter values here */
8575 priv->config = 0;
8576
8577 /* We default to disabling the LED code as right now it causes
8578 * too many systems to lock up... */
8579 if (!led_support)
8580 priv->config |= CFG_NO_LED;
8581
8582 if (associate)
8583 priv->config |= CFG_ASSOCIATE;
8584 else
8585 IPW_DEBUG_INFO("Auto associate disabled.\n");
8586
8587 if (auto_create)
8588 priv->config |= CFG_ADHOC_CREATE;
8589 else
8590 IPW_DEBUG_INFO("Auto adhoc creation disabled.\n");
8591
8592 priv->config &= ~CFG_STATIC_ESSID;
8593 priv->essid_len = 0;
8594 memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
8595
8596 if (disable && option) {
8597 priv->status |= STATUS_RF_KILL_SW;
8598 IPW_DEBUG_INFO("Radio disabled.\n");
8599 }
8600
8601 if (default_channel != 0) {
8602 priv->config |= CFG_STATIC_CHANNEL;
8603 priv->channel = default_channel;
8604 IPW_DEBUG_INFO("Bind to static channel %d\n", default_channel);
8605 /* TODO: Validate that provided channel is in range */
8606 }
8607 #ifdef CONFIG_IPW2200_QOS
8608 ipw_qos_init(priv, qos_enable, qos_burst_enable,
8609 burst_duration_CCK, burst_duration_OFDM);
8610 #endif /* CONFIG_IPW2200_QOS */
8611
8612 switch (network_mode) {
8613 case 1:
8614 priv->ieee->iw_mode = IW_MODE_ADHOC;
8615 priv->net_dev->type = ARPHRD_ETHER;
8616
8617 break;
8618 #ifdef CONFIG_IPW2200_MONITOR
8619 case 2:
8620 priv->ieee->iw_mode = IW_MODE_MONITOR;
8621 #ifdef CONFIG_IPW2200_RADIOTAP
8622 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
8623 #else
8624 priv->net_dev->type = ARPHRD_IEEE80211;
8625 #endif
8626 break;
8627 #endif
8628 default:
8629 case 0:
8630 priv->net_dev->type = ARPHRD_ETHER;
8631 priv->ieee->iw_mode = IW_MODE_INFRA;
8632 break;
8633 }
8634
8635 if (hwcrypto) {
8636 priv->ieee->host_encrypt = 0;
8637 priv->ieee->host_encrypt_msdu = 0;
8638 priv->ieee->host_decrypt = 0;
8639 priv->ieee->host_mc_decrypt = 0;
8640 }
8641 IPW_DEBUG_INFO("Hardware crypto [%s]\n", hwcrypto ? "on" : "off");
8642
8643 /* IPW2200/2915 is abled to do hardware fragmentation. */
8644 priv->ieee->host_open_frag = 0;
8645
8646 if ((priv->pci_dev->device == 0x4223) ||
8647 (priv->pci_dev->device == 0x4224)) {
8648 if (option == 1)
8649 printk(KERN_INFO DRV_NAME
8650 ": Detected Intel PRO/Wireless 2915ABG Network "
8651 "Connection\n");
8652 priv->ieee->abg_true = 1;
8653 band = LIBIPW_52GHZ_BAND | LIBIPW_24GHZ_BAND;
8654 modulation = LIBIPW_OFDM_MODULATION |
8655 LIBIPW_CCK_MODULATION;
8656 priv->adapter = IPW_2915ABG;
8657 priv->ieee->mode = IEEE_A | IEEE_G | IEEE_B;
8658 } else {
8659 if (option == 1)
8660 printk(KERN_INFO DRV_NAME
8661 ": Detected Intel PRO/Wireless 2200BG Network "
8662 "Connection\n");
8663
8664 priv->ieee->abg_true = 0;
8665 band = LIBIPW_24GHZ_BAND;
8666 modulation = LIBIPW_OFDM_MODULATION |
8667 LIBIPW_CCK_MODULATION;
8668 priv->adapter = IPW_2200BG;
8669 priv->ieee->mode = IEEE_G | IEEE_B;
8670 }
8671
8672 priv->ieee->freq_band = band;
8673 priv->ieee->modulation = modulation;
8674
8675 priv->rates_mask = LIBIPW_DEFAULT_RATES_MASK;
8676
8677 priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT;
8678 priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT;
8679
8680 priv->rts_threshold = DEFAULT_RTS_THRESHOLD;
8681 priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT;
8682 priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT;
8683
8684 /* If power management is turned on, default to AC mode */
8685 priv->power_mode = IPW_POWER_AC;
8686 priv->tx_power = IPW_TX_POWER_DEFAULT;
8687
8688 return old_mode == priv->ieee->iw_mode;
8689 }
8690
8691 /*
8692 * This file defines the Wireless Extension handlers. It does not
8693 * define any methods of hardware manipulation and relies on the
8694 * functions defined in ipw_main to provide the HW interaction.
8695 *
8696 * The exception to this is the use of the ipw_get_ordinal()
8697 * function used to poll the hardware vs. making unecessary calls.
8698 *
8699 */
8700
8701 static int ipw_set_channel(struct ipw_priv *priv, u8 channel)
8702 {
8703 if (channel == 0) {
8704 IPW_DEBUG_INFO("Setting channel to ANY (0)\n");
8705 priv->config &= ~CFG_STATIC_CHANNEL;
8706 IPW_DEBUG_ASSOC("Attempting to associate with new "
8707 "parameters.\n");
8708 ipw_associate(priv);
8709 return 0;
8710 }
8711
8712 priv->config |= CFG_STATIC_CHANNEL;
8713
8714 if (priv->channel == channel) {
8715 IPW_DEBUG_INFO("Request to set channel to current value (%d)\n",
8716 channel);
8717 return 0;
8718 }
8719
8720 IPW_DEBUG_INFO("Setting channel to %i\n", (int)channel);
8721 priv->channel = channel;
8722
8723 #ifdef CONFIG_IPW2200_MONITOR
8724 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
8725 int i;
8726 if (priv->status & STATUS_SCANNING) {
8727 IPW_DEBUG_SCAN("Scan abort triggered due to "
8728 "channel change.\n");
8729 ipw_abort_scan(priv);
8730 }
8731
8732 for (i = 1000; i && (priv->status & STATUS_SCANNING); i--)
8733 udelay(10);
8734
8735 if (priv->status & STATUS_SCANNING)
8736 IPW_DEBUG_SCAN("Still scanning...\n");
8737 else
8738 IPW_DEBUG_SCAN("Took %dms to abort current scan\n",
8739 1000 - i);
8740
8741 return 0;
8742 }
8743 #endif /* CONFIG_IPW2200_MONITOR */
8744
8745 /* Network configuration changed -- force [re]association */
8746 IPW_DEBUG_ASSOC("[re]association triggered due to channel change.\n");
8747 if (!ipw_disassociate(priv))
8748 ipw_associate(priv);
8749
8750 return 0;
8751 }
8752
8753 static int ipw_wx_set_freq(struct net_device *dev,
8754 struct iw_request_info *info,
8755 union iwreq_data *wrqu, char *extra)
8756 {
8757 struct ipw_priv *priv = libipw_priv(dev);
8758 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
8759 struct iw_freq *fwrq = &wrqu->freq;
8760 int ret = 0, i;
8761 u8 channel, flags;
8762 int band;
8763
8764 if (fwrq->m == 0) {
8765 IPW_DEBUG_WX("SET Freq/Channel -> any\n");
8766 mutex_lock(&priv->mutex);
8767 ret = ipw_set_channel(priv, 0);
8768 mutex_unlock(&priv->mutex);
8769 return ret;
8770 }
8771 /* if setting by freq convert to channel */
8772 if (fwrq->e == 1) {
8773 channel = libipw_freq_to_channel(priv->ieee, fwrq->m);
8774 if (channel == 0)
8775 return -EINVAL;
8776 } else
8777 channel = fwrq->m;
8778
8779 if (!(band = libipw_is_valid_channel(priv->ieee, channel)))
8780 return -EINVAL;
8781
8782 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
8783 i = libipw_channel_to_index(priv->ieee, channel);
8784 if (i == -1)
8785 return -EINVAL;
8786
8787 flags = (band == LIBIPW_24GHZ_BAND) ?
8788 geo->bg[i].flags : geo->a[i].flags;
8789 if (flags & LIBIPW_CH_PASSIVE_ONLY) {
8790 IPW_DEBUG_WX("Invalid Ad-Hoc channel for 802.11a\n");
8791 return -EINVAL;
8792 }
8793 }
8794
8795 IPW_DEBUG_WX("SET Freq/Channel -> %d \n", fwrq->m);
8796 mutex_lock(&priv->mutex);
8797 ret = ipw_set_channel(priv, channel);
8798 mutex_unlock(&priv->mutex);
8799 return ret;
8800 }
8801
8802 static int ipw_wx_get_freq(struct net_device *dev,
8803 struct iw_request_info *info,
8804 union iwreq_data *wrqu, char *extra)
8805 {
8806 struct ipw_priv *priv = libipw_priv(dev);
8807
8808 wrqu->freq.e = 0;
8809
8810 /* If we are associated, trying to associate, or have a statically
8811 * configured CHANNEL then return that; otherwise return ANY */
8812 mutex_lock(&priv->mutex);
8813 if (priv->config & CFG_STATIC_CHANNEL ||
8814 priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) {
8815 int i;
8816
8817 i = libipw_channel_to_index(priv->ieee, priv->channel);
8818 BUG_ON(i == -1);
8819 wrqu->freq.e = 1;
8820
8821 switch (libipw_is_valid_channel(priv->ieee, priv->channel)) {
8822 case LIBIPW_52GHZ_BAND:
8823 wrqu->freq.m = priv->ieee->geo.a[i].freq * 100000;
8824 break;
8825
8826 case LIBIPW_24GHZ_BAND:
8827 wrqu->freq.m = priv->ieee->geo.bg[i].freq * 100000;
8828 break;
8829
8830 default:
8831 BUG();
8832 }
8833 } else
8834 wrqu->freq.m = 0;
8835
8836 mutex_unlock(&priv->mutex);
8837 IPW_DEBUG_WX("GET Freq/Channel -> %d \n", priv->channel);
8838 return 0;
8839 }
8840
8841 static int ipw_wx_set_mode(struct net_device *dev,
8842 struct iw_request_info *info,
8843 union iwreq_data *wrqu, char *extra)
8844 {
8845 struct ipw_priv *priv = libipw_priv(dev);
8846 int err = 0;
8847
8848 IPW_DEBUG_WX("Set MODE: %d\n", wrqu->mode);
8849
8850 switch (wrqu->mode) {
8851 #ifdef CONFIG_IPW2200_MONITOR
8852 case IW_MODE_MONITOR:
8853 #endif
8854 case IW_MODE_ADHOC:
8855 case IW_MODE_INFRA:
8856 break;
8857 case IW_MODE_AUTO:
8858 wrqu->mode = IW_MODE_INFRA;
8859 break;
8860 default:
8861 return -EINVAL;
8862 }
8863 if (wrqu->mode == priv->ieee->iw_mode)
8864 return 0;
8865
8866 mutex_lock(&priv->mutex);
8867
8868 ipw_sw_reset(priv, 0);
8869
8870 #ifdef CONFIG_IPW2200_MONITOR
8871 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
8872 priv->net_dev->type = ARPHRD_ETHER;
8873
8874 if (wrqu->mode == IW_MODE_MONITOR)
8875 #ifdef CONFIG_IPW2200_RADIOTAP
8876 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
8877 #else
8878 priv->net_dev->type = ARPHRD_IEEE80211;
8879 #endif
8880 #endif /* CONFIG_IPW2200_MONITOR */
8881
8882 /* Free the existing firmware and reset the fw_loaded
8883 * flag so ipw_load() will bring in the new firmware */
8884 free_firmware();
8885
8886 priv->ieee->iw_mode = wrqu->mode;
8887
8888 queue_work(priv->workqueue, &priv->adapter_restart);
8889 mutex_unlock(&priv->mutex);
8890 return err;
8891 }
8892
8893 static int ipw_wx_get_mode(struct net_device *dev,
8894 struct iw_request_info *info,
8895 union iwreq_data *wrqu, char *extra)
8896 {
8897 struct ipw_priv *priv = libipw_priv(dev);
8898 mutex_lock(&priv->mutex);
8899 wrqu->mode = priv->ieee->iw_mode;
8900 IPW_DEBUG_WX("Get MODE -> %d\n", wrqu->mode);
8901 mutex_unlock(&priv->mutex);
8902 return 0;
8903 }
8904
8905 /* Values are in microsecond */
8906 static const s32 timeout_duration[] = {
8907 350000,
8908 250000,
8909 75000,
8910 37000,
8911 25000,
8912 };
8913
8914 static const s32 period_duration[] = {
8915 400000,
8916 700000,
8917 1000000,
8918 1000000,
8919 1000000
8920 };
8921
8922 static int ipw_wx_get_range(struct net_device *dev,
8923 struct iw_request_info *info,
8924 union iwreq_data *wrqu, char *extra)
8925 {
8926 struct ipw_priv *priv = libipw_priv(dev);
8927 struct iw_range *range = (struct iw_range *)extra;
8928 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
8929 int i = 0, j;
8930
8931 wrqu->data.length = sizeof(*range);
8932 memset(range, 0, sizeof(*range));
8933
8934 /* 54Mbs == ~27 Mb/s real (802.11g) */
8935 range->throughput = 27 * 1000 * 1000;
8936
8937 range->max_qual.qual = 100;
8938 /* TODO: Find real max RSSI and stick here */
8939 range->max_qual.level = 0;
8940 range->max_qual.noise = 0;
8941 range->max_qual.updated = 7; /* Updated all three */
8942
8943 range->avg_qual.qual = 70;
8944 /* TODO: Find real 'good' to 'bad' threshold value for RSSI */
8945 range->avg_qual.level = 0; /* FIXME to real average level */
8946 range->avg_qual.noise = 0;
8947 range->avg_qual.updated = 7; /* Updated all three */
8948 mutex_lock(&priv->mutex);
8949 range->num_bitrates = min(priv->rates.num_rates, (u8) IW_MAX_BITRATES);
8950
8951 for (i = 0; i < range->num_bitrates; i++)
8952 range->bitrate[i] = (priv->rates.supported_rates[i] & 0x7F) *
8953 500000;
8954
8955 range->max_rts = DEFAULT_RTS_THRESHOLD;
8956 range->min_frag = MIN_FRAG_THRESHOLD;
8957 range->max_frag = MAX_FRAG_THRESHOLD;
8958
8959 range->encoding_size[0] = 5;
8960 range->encoding_size[1] = 13;
8961 range->num_encoding_sizes = 2;
8962 range->max_encoding_tokens = WEP_KEYS;
8963
8964 /* Set the Wireless Extension versions */
8965 range->we_version_compiled = WIRELESS_EXT;
8966 range->we_version_source = 18;
8967
8968 i = 0;
8969 if (priv->ieee->mode & (IEEE_B | IEEE_G)) {
8970 for (j = 0; j < geo->bg_channels && i < IW_MAX_FREQUENCIES; j++) {
8971 if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
8972 (geo->bg[j].flags & LIBIPW_CH_PASSIVE_ONLY))
8973 continue;
8974
8975 range->freq[i].i = geo->bg[j].channel;
8976 range->freq[i].m = geo->bg[j].freq * 100000;
8977 range->freq[i].e = 1;
8978 i++;
8979 }
8980 }
8981
8982 if (priv->ieee->mode & IEEE_A) {
8983 for (j = 0; j < geo->a_channels && i < IW_MAX_FREQUENCIES; j++) {
8984 if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
8985 (geo->a[j].flags & LIBIPW_CH_PASSIVE_ONLY))
8986 continue;
8987
8988 range->freq[i].i = geo->a[j].channel;
8989 range->freq[i].m = geo->a[j].freq * 100000;
8990 range->freq[i].e = 1;
8991 i++;
8992 }
8993 }
8994
8995 range->num_channels = i;
8996 range->num_frequency = i;
8997
8998 mutex_unlock(&priv->mutex);
8999
9000 /* Event capability (kernel + driver) */
9001 range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
9002 IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) |
9003 IW_EVENT_CAPA_MASK(SIOCGIWAP) |
9004 IW_EVENT_CAPA_MASK(SIOCGIWSCAN));
9005 range->event_capa[1] = IW_EVENT_CAPA_K_1;
9006
9007 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
9008 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
9009
9010 range->scan_capa = IW_SCAN_CAPA_ESSID | IW_SCAN_CAPA_TYPE;
9011
9012 IPW_DEBUG_WX("GET Range\n");
9013 return 0;
9014 }
9015
9016 static int ipw_wx_set_wap(struct net_device *dev,
9017 struct iw_request_info *info,
9018 union iwreq_data *wrqu, char *extra)
9019 {
9020 struct ipw_priv *priv = libipw_priv(dev);
9021
9022 static const unsigned char any[] = {
9023 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
9024 };
9025 static const unsigned char off[] = {
9026 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
9027 };
9028
9029 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
9030 return -EINVAL;
9031 mutex_lock(&priv->mutex);
9032 if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) ||
9033 !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) {
9034 /* we disable mandatory BSSID association */
9035 IPW_DEBUG_WX("Setting AP BSSID to ANY\n");
9036 priv->config &= ~CFG_STATIC_BSSID;
9037 IPW_DEBUG_ASSOC("Attempting to associate with new "
9038 "parameters.\n");
9039 ipw_associate(priv);
9040 mutex_unlock(&priv->mutex);
9041 return 0;
9042 }
9043
9044 priv->config |= CFG_STATIC_BSSID;
9045 if (!memcmp(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN)) {
9046 IPW_DEBUG_WX("BSSID set to current BSSID.\n");
9047 mutex_unlock(&priv->mutex);
9048 return 0;
9049 }
9050
9051 IPW_DEBUG_WX("Setting mandatory BSSID to %pM\n",
9052 wrqu->ap_addr.sa_data);
9053
9054 memcpy(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
9055
9056 /* Network configuration changed -- force [re]association */
9057 IPW_DEBUG_ASSOC("[re]association triggered due to BSSID change.\n");
9058 if (!ipw_disassociate(priv))
9059 ipw_associate(priv);
9060
9061 mutex_unlock(&priv->mutex);
9062 return 0;
9063 }
9064
9065 static int ipw_wx_get_wap(struct net_device *dev,
9066 struct iw_request_info *info,
9067 union iwreq_data *wrqu, char *extra)
9068 {
9069 struct ipw_priv *priv = libipw_priv(dev);
9070
9071 /* If we are associated, trying to associate, or have a statically
9072 * configured BSSID then return that; otherwise return ANY */
9073 mutex_lock(&priv->mutex);
9074 if (priv->config & CFG_STATIC_BSSID ||
9075 priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
9076 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
9077 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN);
9078 } else
9079 memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
9080
9081 IPW_DEBUG_WX("Getting WAP BSSID: %pM\n",
9082 wrqu->ap_addr.sa_data);
9083 mutex_unlock(&priv->mutex);
9084 return 0;
9085 }
9086
9087 static int ipw_wx_set_essid(struct net_device *dev,
9088 struct iw_request_info *info,
9089 union iwreq_data *wrqu, char *extra)
9090 {
9091 struct ipw_priv *priv = libipw_priv(dev);
9092 int length;
9093 DECLARE_SSID_BUF(ssid);
9094
9095 mutex_lock(&priv->mutex);
9096
9097 if (!wrqu->essid.flags)
9098 {
9099 IPW_DEBUG_WX("Setting ESSID to ANY\n");
9100 ipw_disassociate(priv);
9101 priv->config &= ~CFG_STATIC_ESSID;
9102 ipw_associate(priv);
9103 mutex_unlock(&priv->mutex);
9104 return 0;
9105 }
9106
9107 length = min((int)wrqu->essid.length, IW_ESSID_MAX_SIZE);
9108
9109 priv->config |= CFG_STATIC_ESSID;
9110
9111 if (priv->essid_len == length && !memcmp(priv->essid, extra, length)
9112 && (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING))) {
9113 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
9114 mutex_unlock(&priv->mutex);
9115 return 0;
9116 }
9117
9118 IPW_DEBUG_WX("Setting ESSID: '%s' (%d)\n",
9119 print_ssid(ssid, extra, length), length);
9120
9121 priv->essid_len = length;
9122 memcpy(priv->essid, extra, priv->essid_len);
9123
9124 /* Network configuration changed -- force [re]association */
9125 IPW_DEBUG_ASSOC("[re]association triggered due to ESSID change.\n");
9126 if (!ipw_disassociate(priv))
9127 ipw_associate(priv);
9128
9129 mutex_unlock(&priv->mutex);
9130 return 0;
9131 }
9132
9133 static int ipw_wx_get_essid(struct net_device *dev,
9134 struct iw_request_info *info,
9135 union iwreq_data *wrqu, char *extra)
9136 {
9137 struct ipw_priv *priv = libipw_priv(dev);
9138 DECLARE_SSID_BUF(ssid);
9139
9140 /* If we are associated, trying to associate, or have a statically
9141 * configured ESSID then return that; otherwise return ANY */
9142 mutex_lock(&priv->mutex);
9143 if (priv->config & CFG_STATIC_ESSID ||
9144 priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
9145 IPW_DEBUG_WX("Getting essid: '%s'\n",
9146 print_ssid(ssid, priv->essid, priv->essid_len));
9147 memcpy(extra, priv->essid, priv->essid_len);
9148 wrqu->essid.length = priv->essid_len;
9149 wrqu->essid.flags = 1; /* active */
9150 } else {
9151 IPW_DEBUG_WX("Getting essid: ANY\n");
9152 wrqu->essid.length = 0;
9153 wrqu->essid.flags = 0; /* active */
9154 }
9155 mutex_unlock(&priv->mutex);
9156 return 0;
9157 }
9158
9159 static int ipw_wx_set_nick(struct net_device *dev,
9160 struct iw_request_info *info,
9161 union iwreq_data *wrqu, char *extra)
9162 {
9163 struct ipw_priv *priv = libipw_priv(dev);
9164
9165 IPW_DEBUG_WX("Setting nick to '%s'\n", extra);
9166 if (wrqu->data.length > IW_ESSID_MAX_SIZE)
9167 return -E2BIG;
9168 mutex_lock(&priv->mutex);
9169 wrqu->data.length = min((size_t) wrqu->data.length, sizeof(priv->nick));
9170 memset(priv->nick, 0, sizeof(priv->nick));
9171 memcpy(priv->nick, extra, wrqu->data.length);
9172 IPW_DEBUG_TRACE("<<\n");
9173 mutex_unlock(&priv->mutex);
9174 return 0;
9175
9176 }
9177
9178 static int ipw_wx_get_nick(struct net_device *dev,
9179 struct iw_request_info *info,
9180 union iwreq_data *wrqu, char *extra)
9181 {
9182 struct ipw_priv *priv = libipw_priv(dev);
9183 IPW_DEBUG_WX("Getting nick\n");
9184 mutex_lock(&priv->mutex);
9185 wrqu->data.length = strlen(priv->nick);
9186 memcpy(extra, priv->nick, wrqu->data.length);
9187 wrqu->data.flags = 1; /* active */
9188 mutex_unlock(&priv->mutex);
9189 return 0;
9190 }
9191
9192 static int ipw_wx_set_sens(struct net_device *dev,
9193 struct iw_request_info *info,
9194 union iwreq_data *wrqu, char *extra)
9195 {
9196 struct ipw_priv *priv = libipw_priv(dev);
9197 int err = 0;
9198
9199 IPW_DEBUG_WX("Setting roaming threshold to %d\n", wrqu->sens.value);
9200 IPW_DEBUG_WX("Setting disassociate threshold to %d\n", 3*wrqu->sens.value);
9201 mutex_lock(&priv->mutex);
9202
9203 if (wrqu->sens.fixed == 0)
9204 {
9205 priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT;
9206 priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT;
9207 goto out;
9208 }
9209 if ((wrqu->sens.value > IPW_MB_ROAMING_THRESHOLD_MAX) ||
9210 (wrqu->sens.value < IPW_MB_ROAMING_THRESHOLD_MIN)) {
9211 err = -EINVAL;
9212 goto out;
9213 }
9214
9215 priv->roaming_threshold = wrqu->sens.value;
9216 priv->disassociate_threshold = 3*wrqu->sens.value;
9217 out:
9218 mutex_unlock(&priv->mutex);
9219 return err;
9220 }
9221
9222 static int ipw_wx_get_sens(struct net_device *dev,
9223 struct iw_request_info *info,
9224 union iwreq_data *wrqu, char *extra)
9225 {
9226 struct ipw_priv *priv = libipw_priv(dev);
9227 mutex_lock(&priv->mutex);
9228 wrqu->sens.fixed = 1;
9229 wrqu->sens.value = priv->roaming_threshold;
9230 mutex_unlock(&priv->mutex);
9231
9232 IPW_DEBUG_WX("GET roaming threshold -> %s %d \n",
9233 wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value);
9234
9235 return 0;
9236 }
9237
9238 static int ipw_wx_set_rate(struct net_device *dev,
9239 struct iw_request_info *info,
9240 union iwreq_data *wrqu, char *extra)
9241 {
9242 /* TODO: We should use semaphores or locks for access to priv */
9243 struct ipw_priv *priv = libipw_priv(dev);
9244 u32 target_rate = wrqu->bitrate.value;
9245 u32 fixed, mask;
9246
9247 /* value = -1, fixed = 0 means auto only, so we should use all rates offered by AP */
9248 /* value = X, fixed = 1 means only rate X */
9249 /* value = X, fixed = 0 means all rates lower equal X */
9250
9251 if (target_rate == -1) {
9252 fixed = 0;
9253 mask = LIBIPW_DEFAULT_RATES_MASK;
9254 /* Now we should reassociate */
9255 goto apply;
9256 }
9257
9258 mask = 0;
9259 fixed = wrqu->bitrate.fixed;
9260
9261 if (target_rate == 1000000 || !fixed)
9262 mask |= LIBIPW_CCK_RATE_1MB_MASK;
9263 if (target_rate == 1000000)
9264 goto apply;
9265
9266 if (target_rate == 2000000 || !fixed)
9267 mask |= LIBIPW_CCK_RATE_2MB_MASK;
9268 if (target_rate == 2000000)
9269 goto apply;
9270
9271 if (target_rate == 5500000 || !fixed)
9272 mask |= LIBIPW_CCK_RATE_5MB_MASK;
9273 if (target_rate == 5500000)
9274 goto apply;
9275
9276 if (target_rate == 6000000 || !fixed)
9277 mask |= LIBIPW_OFDM_RATE_6MB_MASK;
9278 if (target_rate == 6000000)
9279 goto apply;
9280
9281 if (target_rate == 9000000 || !fixed)
9282 mask |= LIBIPW_OFDM_RATE_9MB_MASK;
9283 if (target_rate == 9000000)
9284 goto apply;
9285
9286 if (target_rate == 11000000 || !fixed)
9287 mask |= LIBIPW_CCK_RATE_11MB_MASK;
9288 if (target_rate == 11000000)
9289 goto apply;
9290
9291 if (target_rate == 12000000 || !fixed)
9292 mask |= LIBIPW_OFDM_RATE_12MB_MASK;
9293 if (target_rate == 12000000)
9294 goto apply;
9295
9296 if (target_rate == 18000000 || !fixed)
9297 mask |= LIBIPW_OFDM_RATE_18MB_MASK;
9298 if (target_rate == 18000000)
9299 goto apply;
9300
9301 if (target_rate == 24000000 || !fixed)
9302 mask |= LIBIPW_OFDM_RATE_24MB_MASK;
9303 if (target_rate == 24000000)
9304 goto apply;
9305
9306 if (target_rate == 36000000 || !fixed)
9307 mask |= LIBIPW_OFDM_RATE_36MB_MASK;
9308 if (target_rate == 36000000)
9309 goto apply;
9310
9311 if (target_rate == 48000000 || !fixed)
9312 mask |= LIBIPW_OFDM_RATE_48MB_MASK;
9313 if (target_rate == 48000000)
9314 goto apply;
9315
9316 if (target_rate == 54000000 || !fixed)
9317 mask |= LIBIPW_OFDM_RATE_54MB_MASK;
9318 if (target_rate == 54000000)
9319 goto apply;
9320
9321 IPW_DEBUG_WX("invalid rate specified, returning error\n");
9322 return -EINVAL;
9323
9324 apply:
9325 IPW_DEBUG_WX("Setting rate mask to 0x%08X [%s]\n",
9326 mask, fixed ? "fixed" : "sub-rates");
9327 mutex_lock(&priv->mutex);
9328 if (mask == LIBIPW_DEFAULT_RATES_MASK) {
9329 priv->config &= ~CFG_FIXED_RATE;
9330 ipw_set_fixed_rate(priv, priv->ieee->mode);
9331 } else
9332 priv->config |= CFG_FIXED_RATE;
9333
9334 if (priv->rates_mask == mask) {
9335 IPW_DEBUG_WX("Mask set to current mask.\n");
9336 mutex_unlock(&priv->mutex);
9337 return 0;
9338 }
9339
9340 priv->rates_mask = mask;
9341
9342 /* Network configuration changed -- force [re]association */
9343 IPW_DEBUG_ASSOC("[re]association triggered due to rates change.\n");
9344 if (!ipw_disassociate(priv))
9345 ipw_associate(priv);
9346
9347 mutex_unlock(&priv->mutex);
9348 return 0;
9349 }
9350
9351 static int ipw_wx_get_rate(struct net_device *dev,
9352 struct iw_request_info *info,
9353 union iwreq_data *wrqu, char *extra)
9354 {
9355 struct ipw_priv *priv = libipw_priv(dev);
9356 mutex_lock(&priv->mutex);
9357 wrqu->bitrate.value = priv->last_rate;
9358 wrqu->bitrate.fixed = (priv->config & CFG_FIXED_RATE) ? 1 : 0;
9359 mutex_unlock(&priv->mutex);
9360 IPW_DEBUG_WX("GET Rate -> %d \n", wrqu->bitrate.value);
9361 return 0;
9362 }
9363
9364 static int ipw_wx_set_rts(struct net_device *dev,
9365 struct iw_request_info *info,
9366 union iwreq_data *wrqu, char *extra)
9367 {
9368 struct ipw_priv *priv = libipw_priv(dev);
9369 mutex_lock(&priv->mutex);
9370 if (wrqu->rts.disabled || !wrqu->rts.fixed)
9371 priv->rts_threshold = DEFAULT_RTS_THRESHOLD;
9372 else {
9373 if (wrqu->rts.value < MIN_RTS_THRESHOLD ||
9374 wrqu->rts.value > MAX_RTS_THRESHOLD) {
9375 mutex_unlock(&priv->mutex);
9376 return -EINVAL;
9377 }
9378 priv->rts_threshold = wrqu->rts.value;
9379 }
9380
9381 ipw_send_rts_threshold(priv, priv->rts_threshold);
9382 mutex_unlock(&priv->mutex);
9383 IPW_DEBUG_WX("SET RTS Threshold -> %d \n", priv->rts_threshold);
9384 return 0;
9385 }
9386
9387 static int ipw_wx_get_rts(struct net_device *dev,
9388 struct iw_request_info *info,
9389 union iwreq_data *wrqu, char *extra)
9390 {
9391 struct ipw_priv *priv = libipw_priv(dev);
9392 mutex_lock(&priv->mutex);
9393 wrqu->rts.value = priv->rts_threshold;
9394 wrqu->rts.fixed = 0; /* no auto select */
9395 wrqu->rts.disabled = (wrqu->rts.value == DEFAULT_RTS_THRESHOLD);
9396 mutex_unlock(&priv->mutex);
9397 IPW_DEBUG_WX("GET RTS Threshold -> %d \n", wrqu->rts.value);
9398 return 0;
9399 }
9400
9401 static int ipw_wx_set_txpow(struct net_device *dev,
9402 struct iw_request_info *info,
9403 union iwreq_data *wrqu, char *extra)
9404 {
9405 struct ipw_priv *priv = libipw_priv(dev);
9406 int err = 0;
9407
9408 mutex_lock(&priv->mutex);
9409 if (ipw_radio_kill_sw(priv, wrqu->power.disabled)) {
9410 err = -EINPROGRESS;
9411 goto out;
9412 }
9413
9414 if (!wrqu->power.fixed)
9415 wrqu->power.value = IPW_TX_POWER_DEFAULT;
9416
9417 if (wrqu->power.flags != IW_TXPOW_DBM) {
9418 err = -EINVAL;
9419 goto out;
9420 }
9421
9422 if ((wrqu->power.value > IPW_TX_POWER_MAX) ||
9423 (wrqu->power.value < IPW_TX_POWER_MIN)) {
9424 err = -EINVAL;
9425 goto out;
9426 }
9427
9428 priv->tx_power = wrqu->power.value;
9429 err = ipw_set_tx_power(priv);
9430 out:
9431 mutex_unlock(&priv->mutex);
9432 return err;
9433 }
9434
9435 static int ipw_wx_get_txpow(struct net_device *dev,
9436 struct iw_request_info *info,
9437 union iwreq_data *wrqu, char *extra)
9438 {
9439 struct ipw_priv *priv = libipw_priv(dev);
9440 mutex_lock(&priv->mutex);
9441 wrqu->power.value = priv->tx_power;
9442 wrqu->power.fixed = 1;
9443 wrqu->power.flags = IW_TXPOW_DBM;
9444 wrqu->power.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0;
9445 mutex_unlock(&priv->mutex);
9446
9447 IPW_DEBUG_WX("GET TX Power -> %s %d \n",
9448 wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value);
9449
9450 return 0;
9451 }
9452
9453 static int ipw_wx_set_frag(struct net_device *dev,
9454 struct iw_request_info *info,
9455 union iwreq_data *wrqu, char *extra)
9456 {
9457 struct ipw_priv *priv = libipw_priv(dev);
9458 mutex_lock(&priv->mutex);
9459 if (wrqu->frag.disabled || !wrqu->frag.fixed)
9460 priv->ieee->fts = DEFAULT_FTS;
9461 else {
9462 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
9463 wrqu->frag.value > MAX_FRAG_THRESHOLD) {
9464 mutex_unlock(&priv->mutex);
9465 return -EINVAL;
9466 }
9467
9468 priv->ieee->fts = wrqu->frag.value & ~0x1;
9469 }
9470
9471 ipw_send_frag_threshold(priv, wrqu->frag.value);
9472 mutex_unlock(&priv->mutex);
9473 IPW_DEBUG_WX("SET Frag Threshold -> %d \n", wrqu->frag.value);
9474 return 0;
9475 }
9476
9477 static int ipw_wx_get_frag(struct net_device *dev,
9478 struct iw_request_info *info,
9479 union iwreq_data *wrqu, char *extra)
9480 {
9481 struct ipw_priv *priv = libipw_priv(dev);
9482 mutex_lock(&priv->mutex);
9483 wrqu->frag.value = priv->ieee->fts;
9484 wrqu->frag.fixed = 0; /* no auto select */
9485 wrqu->frag.disabled = (wrqu->frag.value == DEFAULT_FTS);
9486 mutex_unlock(&priv->mutex);
9487 IPW_DEBUG_WX("GET Frag Threshold -> %d \n", wrqu->frag.value);
9488
9489 return 0;
9490 }
9491
9492 static int ipw_wx_set_retry(struct net_device *dev,
9493 struct iw_request_info *info,
9494 union iwreq_data *wrqu, char *extra)
9495 {
9496 struct ipw_priv *priv = libipw_priv(dev);
9497
9498 if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled)
9499 return -EINVAL;
9500
9501 if (!(wrqu->retry.flags & IW_RETRY_LIMIT))
9502 return 0;
9503
9504 if (wrqu->retry.value < 0 || wrqu->retry.value >= 255)
9505 return -EINVAL;
9506
9507 mutex_lock(&priv->mutex);
9508 if (wrqu->retry.flags & IW_RETRY_SHORT)
9509 priv->short_retry_limit = (u8) wrqu->retry.value;
9510 else if (wrqu->retry.flags & IW_RETRY_LONG)
9511 priv->long_retry_limit = (u8) wrqu->retry.value;
9512 else {
9513 priv->short_retry_limit = (u8) wrqu->retry.value;
9514 priv->long_retry_limit = (u8) wrqu->retry.value;
9515 }
9516
9517 ipw_send_retry_limit(priv, priv->short_retry_limit,
9518 priv->long_retry_limit);
9519 mutex_unlock(&priv->mutex);
9520 IPW_DEBUG_WX("SET retry limit -> short:%d long:%d\n",
9521 priv->short_retry_limit, priv->long_retry_limit);
9522 return 0;
9523 }
9524
9525 static int ipw_wx_get_retry(struct net_device *dev,
9526 struct iw_request_info *info,
9527 union iwreq_data *wrqu, char *extra)
9528 {
9529 struct ipw_priv *priv = libipw_priv(dev);
9530
9531 mutex_lock(&priv->mutex);
9532 wrqu->retry.disabled = 0;
9533
9534 if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
9535 mutex_unlock(&priv->mutex);
9536 return -EINVAL;
9537 }
9538
9539 if (wrqu->retry.flags & IW_RETRY_LONG) {
9540 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
9541 wrqu->retry.value = priv->long_retry_limit;
9542 } else if (wrqu->retry.flags & IW_RETRY_SHORT) {
9543 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
9544 wrqu->retry.value = priv->short_retry_limit;
9545 } else {
9546 wrqu->retry.flags = IW_RETRY_LIMIT;
9547 wrqu->retry.value = priv->short_retry_limit;
9548 }
9549 mutex_unlock(&priv->mutex);
9550
9551 IPW_DEBUG_WX("GET retry -> %d \n", wrqu->retry.value);
9552
9553 return 0;
9554 }
9555
9556 static int ipw_wx_set_scan(struct net_device *dev,
9557 struct iw_request_info *info,
9558 union iwreq_data *wrqu, char *extra)
9559 {
9560 struct ipw_priv *priv = libipw_priv(dev);
9561 struct iw_scan_req *req = (struct iw_scan_req *)extra;
9562 struct delayed_work *work = NULL;
9563
9564 mutex_lock(&priv->mutex);
9565
9566 priv->user_requested_scan = 1;
9567
9568 if (wrqu->data.length == sizeof(struct iw_scan_req)) {
9569 if (wrqu->data.flags & IW_SCAN_THIS_ESSID) {
9570 int len = min((int)req->essid_len,
9571 (int)sizeof(priv->direct_scan_ssid));
9572 memcpy(priv->direct_scan_ssid, req->essid, len);
9573 priv->direct_scan_ssid_len = len;
9574 work = &priv->request_direct_scan;
9575 } else if (req->scan_type == IW_SCAN_TYPE_PASSIVE) {
9576 work = &priv->request_passive_scan;
9577 }
9578 } else {
9579 /* Normal active broadcast scan */
9580 work = &priv->request_scan;
9581 }
9582
9583 mutex_unlock(&priv->mutex);
9584
9585 IPW_DEBUG_WX("Start scan\n");
9586
9587 queue_delayed_work(priv->workqueue, work, 0);
9588
9589 return 0;
9590 }
9591
9592 static int ipw_wx_get_scan(struct net_device *dev,
9593 struct iw_request_info *info,
9594 union iwreq_data *wrqu, char *extra)
9595 {
9596 struct ipw_priv *priv = libipw_priv(dev);
9597 return libipw_wx_get_scan(priv->ieee, info, wrqu, extra);
9598 }
9599
9600 static int ipw_wx_set_encode(struct net_device *dev,
9601 struct iw_request_info *info,
9602 union iwreq_data *wrqu, char *key)
9603 {
9604 struct ipw_priv *priv = libipw_priv(dev);
9605 int ret;
9606 u32 cap = priv->capability;
9607
9608 mutex_lock(&priv->mutex);
9609 ret = libipw_wx_set_encode(priv->ieee, info, wrqu, key);
9610
9611 /* In IBSS mode, we need to notify the firmware to update
9612 * the beacon info after we changed the capability. */
9613 if (cap != priv->capability &&
9614 priv->ieee->iw_mode == IW_MODE_ADHOC &&
9615 priv->status & STATUS_ASSOCIATED)
9616 ipw_disassociate(priv);
9617
9618 mutex_unlock(&priv->mutex);
9619 return ret;
9620 }
9621
9622 static int ipw_wx_get_encode(struct net_device *dev,
9623 struct iw_request_info *info,
9624 union iwreq_data *wrqu, char *key)
9625 {
9626 struct ipw_priv *priv = libipw_priv(dev);
9627 return libipw_wx_get_encode(priv->ieee, info, wrqu, key);
9628 }
9629
9630 static int ipw_wx_set_power(struct net_device *dev,
9631 struct iw_request_info *info,
9632 union iwreq_data *wrqu, char *extra)
9633 {
9634 struct ipw_priv *priv = libipw_priv(dev);
9635 int err;
9636 mutex_lock(&priv->mutex);
9637 if (wrqu->power.disabled) {
9638 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
9639 err = ipw_send_power_mode(priv, IPW_POWER_MODE_CAM);
9640 if (err) {
9641 IPW_DEBUG_WX("failed setting power mode.\n");
9642 mutex_unlock(&priv->mutex);
9643 return err;
9644 }
9645 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
9646 mutex_unlock(&priv->mutex);
9647 return 0;
9648 }
9649
9650 switch (wrqu->power.flags & IW_POWER_MODE) {
9651 case IW_POWER_ON: /* If not specified */
9652 case IW_POWER_MODE: /* If set all mask */
9653 case IW_POWER_ALL_R: /* If explicitly state all */
9654 break;
9655 default: /* Otherwise we don't support it */
9656 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
9657 wrqu->power.flags);
9658 mutex_unlock(&priv->mutex);
9659 return -EOPNOTSUPP;
9660 }
9661
9662 /* If the user hasn't specified a power management mode yet, default
9663 * to BATTERY */
9664 if (IPW_POWER_LEVEL(priv->power_mode) == IPW_POWER_AC)
9665 priv->power_mode = IPW_POWER_ENABLED | IPW_POWER_BATTERY;
9666 else
9667 priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
9668
9669 err = ipw_send_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
9670 if (err) {
9671 IPW_DEBUG_WX("failed setting power mode.\n");
9672 mutex_unlock(&priv->mutex);
9673 return err;
9674 }
9675
9676 IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode);
9677 mutex_unlock(&priv->mutex);
9678 return 0;
9679 }
9680
9681 static int ipw_wx_get_power(struct net_device *dev,
9682 struct iw_request_info *info,
9683 union iwreq_data *wrqu, char *extra)
9684 {
9685 struct ipw_priv *priv = libipw_priv(dev);
9686 mutex_lock(&priv->mutex);
9687 if (!(priv->power_mode & IPW_POWER_ENABLED))
9688 wrqu->power.disabled = 1;
9689 else
9690 wrqu->power.disabled = 0;
9691
9692 mutex_unlock(&priv->mutex);
9693 IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
9694
9695 return 0;
9696 }
9697
9698 static int ipw_wx_set_powermode(struct net_device *dev,
9699 struct iw_request_info *info,
9700 union iwreq_data *wrqu, char *extra)
9701 {
9702 struct ipw_priv *priv = libipw_priv(dev);
9703 int mode = *(int *)extra;
9704 int err;
9705
9706 mutex_lock(&priv->mutex);
9707 if ((mode < 1) || (mode > IPW_POWER_LIMIT))
9708 mode = IPW_POWER_AC;
9709
9710 if (IPW_POWER_LEVEL(priv->power_mode) != mode) {
9711 err = ipw_send_power_mode(priv, mode);
9712 if (err) {
9713 IPW_DEBUG_WX("failed setting power mode.\n");
9714 mutex_unlock(&priv->mutex);
9715 return err;
9716 }
9717 priv->power_mode = IPW_POWER_ENABLED | mode;
9718 }
9719 mutex_unlock(&priv->mutex);
9720 return 0;
9721 }
9722
9723 #define MAX_WX_STRING 80
9724 static int ipw_wx_get_powermode(struct net_device *dev,
9725 struct iw_request_info *info,
9726 union iwreq_data *wrqu, char *extra)
9727 {
9728 struct ipw_priv *priv = libipw_priv(dev);
9729 int level = IPW_POWER_LEVEL(priv->power_mode);
9730 char *p = extra;
9731
9732 p += snprintf(p, MAX_WX_STRING, "Power save level: %d ", level);
9733
9734 switch (level) {
9735 case IPW_POWER_AC:
9736 p += snprintf(p, MAX_WX_STRING - (p - extra), "(AC)");
9737 break;
9738 case IPW_POWER_BATTERY:
9739 p += snprintf(p, MAX_WX_STRING - (p - extra), "(BATTERY)");
9740 break;
9741 default:
9742 p += snprintf(p, MAX_WX_STRING - (p - extra),
9743 "(Timeout %dms, Period %dms)",
9744 timeout_duration[level - 1] / 1000,
9745 period_duration[level - 1] / 1000);
9746 }
9747
9748 if (!(priv->power_mode & IPW_POWER_ENABLED))
9749 p += snprintf(p, MAX_WX_STRING - (p - extra), " OFF");
9750
9751 wrqu->data.length = p - extra + 1;
9752
9753 return 0;
9754 }
9755
9756 static int ipw_wx_set_wireless_mode(struct net_device *dev,
9757 struct iw_request_info *info,
9758 union iwreq_data *wrqu, char *extra)
9759 {
9760 struct ipw_priv *priv = libipw_priv(dev);
9761 int mode = *(int *)extra;
9762 u8 band = 0, modulation = 0;
9763
9764 if (mode == 0 || mode & ~IEEE_MODE_MASK) {
9765 IPW_WARNING("Attempt to set invalid wireless mode: %d\n", mode);
9766 return -EINVAL;
9767 }
9768 mutex_lock(&priv->mutex);
9769 if (priv->adapter == IPW_2915ABG) {
9770 priv->ieee->abg_true = 1;
9771 if (mode & IEEE_A) {
9772 band |= LIBIPW_52GHZ_BAND;
9773 modulation |= LIBIPW_OFDM_MODULATION;
9774 } else
9775 priv->ieee->abg_true = 0;
9776 } else {
9777 if (mode & IEEE_A) {
9778 IPW_WARNING("Attempt to set 2200BG into "
9779 "802.11a mode\n");
9780 mutex_unlock(&priv->mutex);
9781 return -EINVAL;
9782 }
9783
9784 priv->ieee->abg_true = 0;
9785 }
9786
9787 if (mode & IEEE_B) {
9788 band |= LIBIPW_24GHZ_BAND;
9789 modulation |= LIBIPW_CCK_MODULATION;
9790 } else
9791 priv->ieee->abg_true = 0;
9792
9793 if (mode & IEEE_G) {
9794 band |= LIBIPW_24GHZ_BAND;
9795 modulation |= LIBIPW_OFDM_MODULATION;
9796 } else
9797 priv->ieee->abg_true = 0;
9798
9799 priv->ieee->mode = mode;
9800 priv->ieee->freq_band = band;
9801 priv->ieee->modulation = modulation;
9802 init_supported_rates(priv, &priv->rates);
9803
9804 /* Network configuration changed -- force [re]association */
9805 IPW_DEBUG_ASSOC("[re]association triggered due to mode change.\n");
9806 if (!ipw_disassociate(priv)) {
9807 ipw_send_supported_rates(priv, &priv->rates);
9808 ipw_associate(priv);
9809 }
9810
9811 /* Update the band LEDs */
9812 ipw_led_band_on(priv);
9813
9814 IPW_DEBUG_WX("PRIV SET MODE: %c%c%c\n",
9815 mode & IEEE_A ? 'a' : '.',
9816 mode & IEEE_B ? 'b' : '.', mode & IEEE_G ? 'g' : '.');
9817 mutex_unlock(&priv->mutex);
9818 return 0;
9819 }
9820
9821 static int ipw_wx_get_wireless_mode(struct net_device *dev,
9822 struct iw_request_info *info,
9823 union iwreq_data *wrqu, char *extra)
9824 {
9825 struct ipw_priv *priv = libipw_priv(dev);
9826 mutex_lock(&priv->mutex);
9827 switch (priv->ieee->mode) {
9828 case IEEE_A:
9829 strncpy(extra, "802.11a (1)", MAX_WX_STRING);
9830 break;
9831 case IEEE_B:
9832 strncpy(extra, "802.11b (2)", MAX_WX_STRING);
9833 break;
9834 case IEEE_A | IEEE_B:
9835 strncpy(extra, "802.11ab (3)", MAX_WX_STRING);
9836 break;
9837 case IEEE_G:
9838 strncpy(extra, "802.11g (4)", MAX_WX_STRING);
9839 break;
9840 case IEEE_A | IEEE_G:
9841 strncpy(extra, "802.11ag (5)", MAX_WX_STRING);
9842 break;
9843 case IEEE_B | IEEE_G:
9844 strncpy(extra, "802.11bg (6)", MAX_WX_STRING);
9845 break;
9846 case IEEE_A | IEEE_B | IEEE_G:
9847 strncpy(extra, "802.11abg (7)", MAX_WX_STRING);
9848 break;
9849 default:
9850 strncpy(extra, "unknown", MAX_WX_STRING);
9851 break;
9852 }
9853
9854 IPW_DEBUG_WX("PRIV GET MODE: %s\n", extra);
9855
9856 wrqu->data.length = strlen(extra) + 1;
9857 mutex_unlock(&priv->mutex);
9858
9859 return 0;
9860 }
9861
9862 static int ipw_wx_set_preamble(struct net_device *dev,
9863 struct iw_request_info *info,
9864 union iwreq_data *wrqu, char *extra)
9865 {
9866 struct ipw_priv *priv = libipw_priv(dev);
9867 int mode = *(int *)extra;
9868 mutex_lock(&priv->mutex);
9869 /* Switching from SHORT -> LONG requires a disassociation */
9870 if (mode == 1) {
9871 if (!(priv->config & CFG_PREAMBLE_LONG)) {
9872 priv->config |= CFG_PREAMBLE_LONG;
9873
9874 /* Network configuration changed -- force [re]association */
9875 IPW_DEBUG_ASSOC
9876 ("[re]association triggered due to preamble change.\n");
9877 if (!ipw_disassociate(priv))
9878 ipw_associate(priv);
9879 }
9880 goto done;
9881 }
9882
9883 if (mode == 0) {
9884 priv->config &= ~CFG_PREAMBLE_LONG;
9885 goto done;
9886 }
9887 mutex_unlock(&priv->mutex);
9888 return -EINVAL;
9889
9890 done:
9891 mutex_unlock(&priv->mutex);
9892 return 0;
9893 }
9894
9895 static int ipw_wx_get_preamble(struct net_device *dev,
9896 struct iw_request_info *info,
9897 union iwreq_data *wrqu, char *extra)
9898 {
9899 struct ipw_priv *priv = libipw_priv(dev);
9900 mutex_lock(&priv->mutex);
9901 if (priv->config & CFG_PREAMBLE_LONG)
9902 snprintf(wrqu->name, IFNAMSIZ, "long (1)");
9903 else
9904 snprintf(wrqu->name, IFNAMSIZ, "auto (0)");
9905 mutex_unlock(&priv->mutex);
9906 return 0;
9907 }
9908
9909 #ifdef CONFIG_IPW2200_MONITOR
9910 static int ipw_wx_set_monitor(struct net_device *dev,
9911 struct iw_request_info *info,
9912 union iwreq_data *wrqu, char *extra)
9913 {
9914 struct ipw_priv *priv = libipw_priv(dev);
9915 int *parms = (int *)extra;
9916 int enable = (parms[0] > 0);
9917 mutex_lock(&priv->mutex);
9918 IPW_DEBUG_WX("SET MONITOR: %d %d\n", enable, parms[1]);
9919 if (enable) {
9920 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
9921 #ifdef CONFIG_IPW2200_RADIOTAP
9922 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
9923 #else
9924 priv->net_dev->type = ARPHRD_IEEE80211;
9925 #endif
9926 queue_work(priv->workqueue, &priv->adapter_restart);
9927 }
9928
9929 ipw_set_channel(priv, parms[1]);
9930 } else {
9931 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
9932 mutex_unlock(&priv->mutex);
9933 return 0;
9934 }
9935 priv->net_dev->type = ARPHRD_ETHER;
9936 queue_work(priv->workqueue, &priv->adapter_restart);
9937 }
9938 mutex_unlock(&priv->mutex);
9939 return 0;
9940 }
9941
9942 #endif /* CONFIG_IPW2200_MONITOR */
9943
9944 static int ipw_wx_reset(struct net_device *dev,
9945 struct iw_request_info *info,
9946 union iwreq_data *wrqu, char *extra)
9947 {
9948 struct ipw_priv *priv = libipw_priv(dev);
9949 IPW_DEBUG_WX("RESET\n");
9950 queue_work(priv->workqueue, &priv->adapter_restart);
9951 return 0;
9952 }
9953
9954 static int ipw_wx_sw_reset(struct net_device *dev,
9955 struct iw_request_info *info,
9956 union iwreq_data *wrqu, char *extra)
9957 {
9958 struct ipw_priv *priv = libipw_priv(dev);
9959 union iwreq_data wrqu_sec = {
9960 .encoding = {
9961 .flags = IW_ENCODE_DISABLED,
9962 },
9963 };
9964 int ret;
9965
9966 IPW_DEBUG_WX("SW_RESET\n");
9967
9968 mutex_lock(&priv->mutex);
9969
9970 ret = ipw_sw_reset(priv, 2);
9971 if (!ret) {
9972 free_firmware();
9973 ipw_adapter_restart(priv);
9974 }
9975
9976 /* The SW reset bit might have been toggled on by the 'disable'
9977 * module parameter, so take appropriate action */
9978 ipw_radio_kill_sw(priv, priv->status & STATUS_RF_KILL_SW);
9979
9980 mutex_unlock(&priv->mutex);
9981 libipw_wx_set_encode(priv->ieee, info, &wrqu_sec, NULL);
9982 mutex_lock(&priv->mutex);
9983
9984 if (!(priv->status & STATUS_RF_KILL_MASK)) {
9985 /* Configuration likely changed -- force [re]association */
9986 IPW_DEBUG_ASSOC("[re]association triggered due to sw "
9987 "reset.\n");
9988 if (!ipw_disassociate(priv))
9989 ipw_associate(priv);
9990 }
9991
9992 mutex_unlock(&priv->mutex);
9993
9994 return 0;
9995 }
9996
9997 /* Rebase the WE IOCTLs to zero for the handler array */
9998 static iw_handler ipw_wx_handlers[] = {
9999 IW_HANDLER(SIOCGIWNAME, (iw_handler)cfg80211_wext_giwname),
10000 IW_HANDLER(SIOCSIWFREQ, ipw_wx_set_freq),
10001 IW_HANDLER(SIOCGIWFREQ, ipw_wx_get_freq),
10002 IW_HANDLER(SIOCSIWMODE, ipw_wx_set_mode),
10003 IW_HANDLER(SIOCGIWMODE, ipw_wx_get_mode),
10004 IW_HANDLER(SIOCSIWSENS, ipw_wx_set_sens),
10005 IW_HANDLER(SIOCGIWSENS, ipw_wx_get_sens),
10006 IW_HANDLER(SIOCGIWRANGE, ipw_wx_get_range),
10007 IW_HANDLER(SIOCSIWAP, ipw_wx_set_wap),
10008 IW_HANDLER(SIOCGIWAP, ipw_wx_get_wap),
10009 IW_HANDLER(SIOCSIWSCAN, ipw_wx_set_scan),
10010 IW_HANDLER(SIOCGIWSCAN, ipw_wx_get_scan),
10011 IW_HANDLER(SIOCSIWESSID, ipw_wx_set_essid),
10012 IW_HANDLER(SIOCGIWESSID, ipw_wx_get_essid),
10013 IW_HANDLER(SIOCSIWNICKN, ipw_wx_set_nick),
10014 IW_HANDLER(SIOCGIWNICKN, ipw_wx_get_nick),
10015 IW_HANDLER(SIOCSIWRATE, ipw_wx_set_rate),
10016 IW_HANDLER(SIOCGIWRATE, ipw_wx_get_rate),
10017 IW_HANDLER(SIOCSIWRTS, ipw_wx_set_rts),
10018 IW_HANDLER(SIOCGIWRTS, ipw_wx_get_rts),
10019 IW_HANDLER(SIOCSIWFRAG, ipw_wx_set_frag),
10020 IW_HANDLER(SIOCGIWFRAG, ipw_wx_get_frag),
10021 IW_HANDLER(SIOCSIWTXPOW, ipw_wx_set_txpow),
10022 IW_HANDLER(SIOCGIWTXPOW, ipw_wx_get_txpow),
10023 IW_HANDLER(SIOCSIWRETRY, ipw_wx_set_retry),
10024 IW_HANDLER(SIOCGIWRETRY, ipw_wx_get_retry),
10025 IW_HANDLER(SIOCSIWENCODE, ipw_wx_set_encode),
10026 IW_HANDLER(SIOCGIWENCODE, ipw_wx_get_encode),
10027 IW_HANDLER(SIOCSIWPOWER, ipw_wx_set_power),
10028 IW_HANDLER(SIOCGIWPOWER, ipw_wx_get_power),
10029 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
10030 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
10031 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
10032 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
10033 IW_HANDLER(SIOCSIWGENIE, ipw_wx_set_genie),
10034 IW_HANDLER(SIOCGIWGENIE, ipw_wx_get_genie),
10035 IW_HANDLER(SIOCSIWMLME, ipw_wx_set_mlme),
10036 IW_HANDLER(SIOCSIWAUTH, ipw_wx_set_auth),
10037 IW_HANDLER(SIOCGIWAUTH, ipw_wx_get_auth),
10038 IW_HANDLER(SIOCSIWENCODEEXT, ipw_wx_set_encodeext),
10039 IW_HANDLER(SIOCGIWENCODEEXT, ipw_wx_get_encodeext),
10040 };
10041
10042 enum {
10043 IPW_PRIV_SET_POWER = SIOCIWFIRSTPRIV,
10044 IPW_PRIV_GET_POWER,
10045 IPW_PRIV_SET_MODE,
10046 IPW_PRIV_GET_MODE,
10047 IPW_PRIV_SET_PREAMBLE,
10048 IPW_PRIV_GET_PREAMBLE,
10049 IPW_PRIV_RESET,
10050 IPW_PRIV_SW_RESET,
10051 #ifdef CONFIG_IPW2200_MONITOR
10052 IPW_PRIV_SET_MONITOR,
10053 #endif
10054 };
10055
10056 static struct iw_priv_args ipw_priv_args[] = {
10057 {
10058 .cmd = IPW_PRIV_SET_POWER,
10059 .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
10060 .name = "set_power"},
10061 {
10062 .cmd = IPW_PRIV_GET_POWER,
10063 .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
10064 .name = "get_power"},
10065 {
10066 .cmd = IPW_PRIV_SET_MODE,
10067 .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
10068 .name = "set_mode"},
10069 {
10070 .cmd = IPW_PRIV_GET_MODE,
10071 .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
10072 .name = "get_mode"},
10073 {
10074 .cmd = IPW_PRIV_SET_PREAMBLE,
10075 .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
10076 .name = "set_preamble"},
10077 {
10078 .cmd = IPW_PRIV_GET_PREAMBLE,
10079 .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ,
10080 .name = "get_preamble"},
10081 {
10082 IPW_PRIV_RESET,
10083 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"},
10084 {
10085 IPW_PRIV_SW_RESET,
10086 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "sw_reset"},
10087 #ifdef CONFIG_IPW2200_MONITOR
10088 {
10089 IPW_PRIV_SET_MONITOR,
10090 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"},
10091 #endif /* CONFIG_IPW2200_MONITOR */
10092 };
10093
10094 static iw_handler ipw_priv_handler[] = {
10095 ipw_wx_set_powermode,
10096 ipw_wx_get_powermode,
10097 ipw_wx_set_wireless_mode,
10098 ipw_wx_get_wireless_mode,
10099 ipw_wx_set_preamble,
10100 ipw_wx_get_preamble,
10101 ipw_wx_reset,
10102 ipw_wx_sw_reset,
10103 #ifdef CONFIG_IPW2200_MONITOR
10104 ipw_wx_set_monitor,
10105 #endif
10106 };
10107
10108 static struct iw_handler_def ipw_wx_handler_def = {
10109 .standard = ipw_wx_handlers,
10110 .num_standard = ARRAY_SIZE(ipw_wx_handlers),
10111 .num_private = ARRAY_SIZE(ipw_priv_handler),
10112 .num_private_args = ARRAY_SIZE(ipw_priv_args),
10113 .private = ipw_priv_handler,
10114 .private_args = ipw_priv_args,
10115 .get_wireless_stats = ipw_get_wireless_stats,
10116 };
10117
10118 /*
10119 * Get wireless statistics.
10120 * Called by /proc/net/wireless
10121 * Also called by SIOCGIWSTATS
10122 */
10123 static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev)
10124 {
10125 struct ipw_priv *priv = libipw_priv(dev);
10126 struct iw_statistics *wstats;
10127
10128 wstats = &priv->wstats;
10129
10130 /* if hw is disabled, then ipw_get_ordinal() can't be called.
10131 * netdev->get_wireless_stats seems to be called before fw is
10132 * initialized. STATUS_ASSOCIATED will only be set if the hw is up
10133 * and associated; if not associcated, the values are all meaningless
10134 * anyway, so set them all to NULL and INVALID */
10135 if (!(priv->status & STATUS_ASSOCIATED)) {
10136 wstats->miss.beacon = 0;
10137 wstats->discard.retries = 0;
10138 wstats->qual.qual = 0;
10139 wstats->qual.level = 0;
10140 wstats->qual.noise = 0;
10141 wstats->qual.updated = 7;
10142 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
10143 IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
10144 return wstats;
10145 }
10146
10147 wstats->qual.qual = priv->quality;
10148 wstats->qual.level = priv->exp_avg_rssi;
10149 wstats->qual.noise = priv->exp_avg_noise;
10150 wstats->qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED |
10151 IW_QUAL_NOISE_UPDATED | IW_QUAL_DBM;
10152
10153 wstats->miss.beacon = average_value(&priv->average_missed_beacons);
10154 wstats->discard.retries = priv->last_tx_failures;
10155 wstats->discard.code = priv->ieee->ieee_stats.rx_discards_undecryptable;
10156
10157 /* if (ipw_get_ordinal(priv, IPW_ORD_STAT_TX_RETRY, &tx_retry, &len))
10158 goto fail_get_ordinal;
10159 wstats->discard.retries += tx_retry; */
10160
10161 return wstats;
10162 }
10163
10164 /* net device stuff */
10165
10166 static void init_sys_config(struct ipw_sys_config *sys_config)
10167 {
10168 memset(sys_config, 0, sizeof(struct ipw_sys_config));
10169 sys_config->bt_coexistence = 0;
10170 sys_config->answer_broadcast_ssid_probe = 0;
10171 sys_config->accept_all_data_frames = 0;
10172 sys_config->accept_non_directed_frames = 1;
10173 sys_config->exclude_unicast_unencrypted = 0;
10174 sys_config->disable_unicast_decryption = 1;
10175 sys_config->exclude_multicast_unencrypted = 0;
10176 sys_config->disable_multicast_decryption = 1;
10177 if (antenna < CFG_SYS_ANTENNA_BOTH || antenna > CFG_SYS_ANTENNA_B)
10178 antenna = CFG_SYS_ANTENNA_BOTH;
10179 sys_config->antenna_diversity = antenna;
10180 sys_config->pass_crc_to_host = 0; /* TODO: See if 1 gives us FCS */
10181 sys_config->dot11g_auto_detection = 0;
10182 sys_config->enable_cts_to_self = 0;
10183 sys_config->bt_coexist_collision_thr = 0;
10184 sys_config->pass_noise_stats_to_host = 1; /* 1 -- fix for 256 */
10185 sys_config->silence_threshold = 0x1e;
10186 }
10187
10188 static int ipw_net_open(struct net_device *dev)
10189 {
10190 IPW_DEBUG_INFO("dev->open\n");
10191 netif_start_queue(dev);
10192 return 0;
10193 }
10194
10195 static int ipw_net_stop(struct net_device *dev)
10196 {
10197 IPW_DEBUG_INFO("dev->close\n");
10198 netif_stop_queue(dev);
10199 return 0;
10200 }
10201
10202 /*
10203 todo:
10204
10205 modify to send one tfd per fragment instead of using chunking. otherwise
10206 we need to heavily modify the libipw_skb_to_txb.
10207 */
10208
10209 static int ipw_tx_skb(struct ipw_priv *priv, struct libipw_txb *txb,
10210 int pri)
10211 {
10212 struct libipw_hdr_3addrqos *hdr = (struct libipw_hdr_3addrqos *)
10213 txb->fragments[0]->data;
10214 int i = 0;
10215 struct tfd_frame *tfd;
10216 #ifdef CONFIG_IPW2200_QOS
10217 int tx_id = ipw_get_tx_queue_number(priv, pri);
10218 struct clx2_tx_queue *txq = &priv->txq[tx_id];
10219 #else
10220 struct clx2_tx_queue *txq = &priv->txq[0];
10221 #endif
10222 struct clx2_queue *q = &txq->q;
10223 u8 id, hdr_len, unicast;
10224 int fc;
10225
10226 if (!(priv->status & STATUS_ASSOCIATED))
10227 goto drop;
10228
10229 hdr_len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
10230 switch (priv->ieee->iw_mode) {
10231 case IW_MODE_ADHOC:
10232 unicast = !is_multicast_ether_addr(hdr->addr1);
10233 id = ipw_find_station(priv, hdr->addr1);
10234 if (id == IPW_INVALID_STATION) {
10235 id = ipw_add_station(priv, hdr->addr1);
10236 if (id == IPW_INVALID_STATION) {
10237 IPW_WARNING("Attempt to send data to "
10238 "invalid cell: %pM\n",
10239 hdr->addr1);
10240 goto drop;
10241 }
10242 }
10243 break;
10244
10245 case IW_MODE_INFRA:
10246 default:
10247 unicast = !is_multicast_ether_addr(hdr->addr3);
10248 id = 0;
10249 break;
10250 }
10251
10252 tfd = &txq->bd[q->first_empty];
10253 txq->txb[q->first_empty] = txb;
10254 memset(tfd, 0, sizeof(*tfd));
10255 tfd->u.data.station_number = id;
10256
10257 tfd->control_flags.message_type = TX_FRAME_TYPE;
10258 tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK;
10259
10260 tfd->u.data.cmd_id = DINO_CMD_TX;
10261 tfd->u.data.len = cpu_to_le16(txb->payload_size);
10262
10263 if (priv->assoc_request.ieee_mode == IPW_B_MODE)
10264 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_CCK;
10265 else
10266 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_OFDM;
10267
10268 if (priv->assoc_request.preamble_length == DCT_FLAG_SHORT_PREAMBLE)
10269 tfd->u.data.tx_flags |= DCT_FLAG_SHORT_PREAMBLE;
10270
10271 fc = le16_to_cpu(hdr->frame_ctl);
10272 hdr->frame_ctl = cpu_to_le16(fc & ~IEEE80211_FCTL_MOREFRAGS);
10273
10274 memcpy(&tfd->u.data.tfd.tfd_24.mchdr, hdr, hdr_len);
10275
10276 if (likely(unicast))
10277 tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD;
10278
10279 if (txb->encrypted && !priv->ieee->host_encrypt) {
10280 switch (priv->ieee->sec.level) {
10281 case SEC_LEVEL_3:
10282 tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
10283 cpu_to_le16(IEEE80211_FCTL_PROTECTED);
10284 /* XXX: ACK flag must be set for CCMP even if it
10285 * is a multicast/broadcast packet, because CCMP
10286 * group communication encrypted by GTK is
10287 * actually done by the AP. */
10288 if (!unicast)
10289 tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD;
10290
10291 tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP;
10292 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_CCM;
10293 tfd->u.data.key_index = 0;
10294 tfd->u.data.key_index |= DCT_WEP_INDEX_USE_IMMEDIATE;
10295 break;
10296 case SEC_LEVEL_2:
10297 tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
10298 cpu_to_le16(IEEE80211_FCTL_PROTECTED);
10299 tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP;
10300 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_TKIP;
10301 tfd->u.data.key_index = DCT_WEP_INDEX_USE_IMMEDIATE;
10302 break;
10303 case SEC_LEVEL_1:
10304 tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
10305 cpu_to_le16(IEEE80211_FCTL_PROTECTED);
10306 tfd->u.data.key_index = priv->ieee->crypt_info.tx_keyidx;
10307 if (priv->ieee->sec.key_sizes[priv->ieee->crypt_info.tx_keyidx] <=
10308 40)
10309 tfd->u.data.key_index |= DCT_WEP_KEY_64Bit;
10310 else
10311 tfd->u.data.key_index |= DCT_WEP_KEY_128Bit;
10312 break;
10313 case SEC_LEVEL_0:
10314 break;
10315 default:
10316 printk(KERN_ERR "Unknown security level %d\n",
10317 priv->ieee->sec.level);
10318 break;
10319 }
10320 } else
10321 /* No hardware encryption */
10322 tfd->u.data.tx_flags |= DCT_FLAG_NO_WEP;
10323
10324 #ifdef CONFIG_IPW2200_QOS
10325 if (fc & IEEE80211_STYPE_QOS_DATA)
10326 ipw_qos_set_tx_queue_command(priv, pri, &(tfd->u.data));
10327 #endif /* CONFIG_IPW2200_QOS */
10328
10329 /* payload */
10330 tfd->u.data.num_chunks = cpu_to_le32(min((u8) (NUM_TFD_CHUNKS - 2),
10331 txb->nr_frags));
10332 IPW_DEBUG_FRAG("%i fragments being sent as %i chunks.\n",
10333 txb->nr_frags, le32_to_cpu(tfd->u.data.num_chunks));
10334 for (i = 0; i < le32_to_cpu(tfd->u.data.num_chunks); i++) {
10335 IPW_DEBUG_FRAG("Adding fragment %i of %i (%d bytes).\n",
10336 i, le32_to_cpu(tfd->u.data.num_chunks),
10337 txb->fragments[i]->len - hdr_len);
10338 IPW_DEBUG_TX("Dumping TX packet frag %i of %i (%d bytes):\n",
10339 i, tfd->u.data.num_chunks,
10340 txb->fragments[i]->len - hdr_len);
10341 printk_buf(IPW_DL_TX, txb->fragments[i]->data + hdr_len,
10342 txb->fragments[i]->len - hdr_len);
10343
10344 tfd->u.data.chunk_ptr[i] =
10345 cpu_to_le32(pci_map_single
10346 (priv->pci_dev,
10347 txb->fragments[i]->data + hdr_len,
10348 txb->fragments[i]->len - hdr_len,
10349 PCI_DMA_TODEVICE));
10350 tfd->u.data.chunk_len[i] =
10351 cpu_to_le16(txb->fragments[i]->len - hdr_len);
10352 }
10353
10354 if (i != txb->nr_frags) {
10355 struct sk_buff *skb;
10356 u16 remaining_bytes = 0;
10357 int j;
10358
10359 for (j = i; j < txb->nr_frags; j++)
10360 remaining_bytes += txb->fragments[j]->len - hdr_len;
10361
10362 printk(KERN_INFO "Trying to reallocate for %d bytes\n",
10363 remaining_bytes);
10364 skb = alloc_skb(remaining_bytes, GFP_ATOMIC);
10365 if (skb != NULL) {
10366 tfd->u.data.chunk_len[i] = cpu_to_le16(remaining_bytes);
10367 for (j = i; j < txb->nr_frags; j++) {
10368 int size = txb->fragments[j]->len - hdr_len;
10369
10370 printk(KERN_INFO "Adding frag %d %d...\n",
10371 j, size);
10372 memcpy(skb_put(skb, size),
10373 txb->fragments[j]->data + hdr_len, size);
10374 }
10375 dev_kfree_skb_any(txb->fragments[i]);
10376 txb->fragments[i] = skb;
10377 tfd->u.data.chunk_ptr[i] =
10378 cpu_to_le32(pci_map_single
10379 (priv->pci_dev, skb->data,
10380 remaining_bytes,
10381 PCI_DMA_TODEVICE));
10382
10383 le32_add_cpu(&tfd->u.data.num_chunks, 1);
10384 }
10385 }
10386
10387 /* kick DMA */
10388 q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
10389 ipw_write32(priv, q->reg_w, q->first_empty);
10390
10391 if (ipw_tx_queue_space(q) < q->high_mark)
10392 netif_stop_queue(priv->net_dev);
10393
10394 return NETDEV_TX_OK;
10395
10396 drop:
10397 IPW_DEBUG_DROP("Silently dropping Tx packet.\n");
10398 libipw_txb_free(txb);
10399 return NETDEV_TX_OK;
10400 }
10401
10402 static int ipw_net_is_queue_full(struct net_device *dev, int pri)
10403 {
10404 struct ipw_priv *priv = libipw_priv(dev);
10405 #ifdef CONFIG_IPW2200_QOS
10406 int tx_id = ipw_get_tx_queue_number(priv, pri);
10407 struct clx2_tx_queue *txq = &priv->txq[tx_id];
10408 #else
10409 struct clx2_tx_queue *txq = &priv->txq[0];
10410 #endif /* CONFIG_IPW2200_QOS */
10411
10412 if (ipw_tx_queue_space(&txq->q) < txq->q.high_mark)
10413 return 1;
10414
10415 return 0;
10416 }
10417
10418 #ifdef CONFIG_IPW2200_PROMISCUOUS
10419 static void ipw_handle_promiscuous_tx(struct ipw_priv *priv,
10420 struct libipw_txb *txb)
10421 {
10422 struct libipw_rx_stats dummystats;
10423 struct ieee80211_hdr *hdr;
10424 u8 n;
10425 u16 filter = priv->prom_priv->filter;
10426 int hdr_only = 0;
10427
10428 if (filter & IPW_PROM_NO_TX)
10429 return;
10430
10431 memset(&dummystats, 0, sizeof(dummystats));
10432
10433 /* Filtering of fragment chains is done agains the first fragment */
10434 hdr = (void *)txb->fragments[0]->data;
10435 if (libipw_is_management(le16_to_cpu(hdr->frame_control))) {
10436 if (filter & IPW_PROM_NO_MGMT)
10437 return;
10438 if (filter & IPW_PROM_MGMT_HEADER_ONLY)
10439 hdr_only = 1;
10440 } else if (libipw_is_control(le16_to_cpu(hdr->frame_control))) {
10441 if (filter & IPW_PROM_NO_CTL)
10442 return;
10443 if (filter & IPW_PROM_CTL_HEADER_ONLY)
10444 hdr_only = 1;
10445 } else if (libipw_is_data(le16_to_cpu(hdr->frame_control))) {
10446 if (filter & IPW_PROM_NO_DATA)
10447 return;
10448 if (filter & IPW_PROM_DATA_HEADER_ONLY)
10449 hdr_only = 1;
10450 }
10451
10452 for(n=0; n<txb->nr_frags; ++n) {
10453 struct sk_buff *src = txb->fragments[n];
10454 struct sk_buff *dst;
10455 struct ieee80211_radiotap_header *rt_hdr;
10456 int len;
10457
10458 if (hdr_only) {
10459 hdr = (void *)src->data;
10460 len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_control));
10461 } else
10462 len = src->len;
10463
10464 dst = alloc_skb(len + sizeof(*rt_hdr), GFP_ATOMIC);
10465 if (!dst)
10466 continue;
10467
10468 rt_hdr = (void *)skb_put(dst, sizeof(*rt_hdr));
10469
10470 rt_hdr->it_version = PKTHDR_RADIOTAP_VERSION;
10471 rt_hdr->it_pad = 0;
10472 rt_hdr->it_present = 0; /* after all, it's just an idea */
10473 rt_hdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_CHANNEL);
10474
10475 *(__le16*)skb_put(dst, sizeof(u16)) = cpu_to_le16(
10476 ieee80211chan2mhz(priv->channel));
10477 if (priv->channel > 14) /* 802.11a */
10478 *(__le16*)skb_put(dst, sizeof(u16)) =
10479 cpu_to_le16(IEEE80211_CHAN_OFDM |
10480 IEEE80211_CHAN_5GHZ);
10481 else if (priv->ieee->mode == IEEE_B) /* 802.11b */
10482 *(__le16*)skb_put(dst, sizeof(u16)) =
10483 cpu_to_le16(IEEE80211_CHAN_CCK |
10484 IEEE80211_CHAN_2GHZ);
10485 else /* 802.11g */
10486 *(__le16*)skb_put(dst, sizeof(u16)) =
10487 cpu_to_le16(IEEE80211_CHAN_OFDM |
10488 IEEE80211_CHAN_2GHZ);
10489
10490 rt_hdr->it_len = cpu_to_le16(dst->len);
10491
10492 skb_copy_from_linear_data(src, skb_put(dst, len), len);
10493
10494 if (!libipw_rx(priv->prom_priv->ieee, dst, &dummystats))
10495 dev_kfree_skb_any(dst);
10496 }
10497 }
10498 #endif
10499
10500 static netdev_tx_t ipw_net_hard_start_xmit(struct libipw_txb *txb,
10501 struct net_device *dev, int pri)
10502 {
10503 struct ipw_priv *priv = libipw_priv(dev);
10504 unsigned long flags;
10505 netdev_tx_t ret;
10506
10507 IPW_DEBUG_TX("dev->xmit(%d bytes)\n", txb->payload_size);
10508 spin_lock_irqsave(&priv->lock, flags);
10509
10510 #ifdef CONFIG_IPW2200_PROMISCUOUS
10511 if (rtap_iface && netif_running(priv->prom_net_dev))
10512 ipw_handle_promiscuous_tx(priv, txb);
10513 #endif
10514
10515 ret = ipw_tx_skb(priv, txb, pri);
10516 if (ret == NETDEV_TX_OK)
10517 __ipw_led_activity_on(priv);
10518 spin_unlock_irqrestore(&priv->lock, flags);
10519
10520 return ret;
10521 }
10522
10523 static void ipw_net_set_multicast_list(struct net_device *dev)
10524 {
10525
10526 }
10527
10528 static int ipw_net_set_mac_address(struct net_device *dev, void *p)
10529 {
10530 struct ipw_priv *priv = libipw_priv(dev);
10531 struct sockaddr *addr = p;
10532
10533 if (!is_valid_ether_addr(addr->sa_data))
10534 return -EADDRNOTAVAIL;
10535 mutex_lock(&priv->mutex);
10536 priv->config |= CFG_CUSTOM_MAC;
10537 memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
10538 printk(KERN_INFO "%s: Setting MAC to %pM\n",
10539 priv->net_dev->name, priv->mac_addr);
10540 queue_work(priv->workqueue, &priv->adapter_restart);
10541 mutex_unlock(&priv->mutex);
10542 return 0;
10543 }
10544
10545 static void ipw_ethtool_get_drvinfo(struct net_device *dev,
10546 struct ethtool_drvinfo *info)
10547 {
10548 struct ipw_priv *p = libipw_priv(dev);
10549 char vers[64];
10550 char date[32];
10551 u32 len;
10552
10553 strcpy(info->driver, DRV_NAME);
10554 strcpy(info->version, DRV_VERSION);
10555
10556 len = sizeof(vers);
10557 ipw_get_ordinal(p, IPW_ORD_STAT_FW_VERSION, vers, &len);
10558 len = sizeof(date);
10559 ipw_get_ordinal(p, IPW_ORD_STAT_FW_DATE, date, &len);
10560
10561 snprintf(info->fw_version, sizeof(info->fw_version), "%s (%s)",
10562 vers, date);
10563 strcpy(info->bus_info, pci_name(p->pci_dev));
10564 info->eedump_len = IPW_EEPROM_IMAGE_SIZE;
10565 }
10566
10567 static u32 ipw_ethtool_get_link(struct net_device *dev)
10568 {
10569 struct ipw_priv *priv = libipw_priv(dev);
10570 return (priv->status & STATUS_ASSOCIATED) != 0;
10571 }
10572
10573 static int ipw_ethtool_get_eeprom_len(struct net_device *dev)
10574 {
10575 return IPW_EEPROM_IMAGE_SIZE;
10576 }
10577
10578 static int ipw_ethtool_get_eeprom(struct net_device *dev,
10579 struct ethtool_eeprom *eeprom, u8 * bytes)
10580 {
10581 struct ipw_priv *p = libipw_priv(dev);
10582
10583 if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE)
10584 return -EINVAL;
10585 mutex_lock(&p->mutex);
10586 memcpy(bytes, &p->eeprom[eeprom->offset], eeprom->len);
10587 mutex_unlock(&p->mutex);
10588 return 0;
10589 }
10590
10591 static int ipw_ethtool_set_eeprom(struct net_device *dev,
10592 struct ethtool_eeprom *eeprom, u8 * bytes)
10593 {
10594 struct ipw_priv *p = libipw_priv(dev);
10595 int i;
10596
10597 if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE)
10598 return -EINVAL;
10599 mutex_lock(&p->mutex);
10600 memcpy(&p->eeprom[eeprom->offset], bytes, eeprom->len);
10601 for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++)
10602 ipw_write8(p, i + IPW_EEPROM_DATA, p->eeprom[i]);
10603 mutex_unlock(&p->mutex);
10604 return 0;
10605 }
10606
10607 static const struct ethtool_ops ipw_ethtool_ops = {
10608 .get_link = ipw_ethtool_get_link,
10609 .get_drvinfo = ipw_ethtool_get_drvinfo,
10610 .get_eeprom_len = ipw_ethtool_get_eeprom_len,
10611 .get_eeprom = ipw_ethtool_get_eeprom,
10612 .set_eeprom = ipw_ethtool_set_eeprom,
10613 };
10614
10615 static irqreturn_t ipw_isr(int irq, void *data)
10616 {
10617 struct ipw_priv *priv = data;
10618 u32 inta, inta_mask;
10619
10620 if (!priv)
10621 return IRQ_NONE;
10622
10623 spin_lock(&priv->irq_lock);
10624
10625 if (!(priv->status & STATUS_INT_ENABLED)) {
10626 /* IRQ is disabled */
10627 goto none;
10628 }
10629
10630 inta = ipw_read32(priv, IPW_INTA_RW);
10631 inta_mask = ipw_read32(priv, IPW_INTA_MASK_R);
10632
10633 if (inta == 0xFFFFFFFF) {
10634 /* Hardware disappeared */
10635 IPW_WARNING("IRQ INTA == 0xFFFFFFFF\n");
10636 goto none;
10637 }
10638
10639 if (!(inta & (IPW_INTA_MASK_ALL & inta_mask))) {
10640 /* Shared interrupt */
10641 goto none;
10642 }
10643
10644 /* tell the device to stop sending interrupts */
10645 __ipw_disable_interrupts(priv);
10646
10647 /* ack current interrupts */
10648 inta &= (IPW_INTA_MASK_ALL & inta_mask);
10649 ipw_write32(priv, IPW_INTA_RW, inta);
10650
10651 /* Cache INTA value for our tasklet */
10652 priv->isr_inta = inta;
10653
10654 tasklet_schedule(&priv->irq_tasklet);
10655
10656 spin_unlock(&priv->irq_lock);
10657
10658 return IRQ_HANDLED;
10659 none:
10660 spin_unlock(&priv->irq_lock);
10661 return IRQ_NONE;
10662 }
10663
10664 static void ipw_rf_kill(void *adapter)
10665 {
10666 struct ipw_priv *priv = adapter;
10667 unsigned long flags;
10668
10669 spin_lock_irqsave(&priv->lock, flags);
10670
10671 if (rf_kill_active(priv)) {
10672 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
10673 if (priv->workqueue)
10674 queue_delayed_work(priv->workqueue,
10675 &priv->rf_kill, 2 * HZ);
10676 goto exit_unlock;
10677 }
10678
10679 /* RF Kill is now disabled, so bring the device back up */
10680
10681 if (!(priv->status & STATUS_RF_KILL_MASK)) {
10682 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
10683 "device\n");
10684
10685 /* we can not do an adapter restart while inside an irq lock */
10686 queue_work(priv->workqueue, &priv->adapter_restart);
10687 } else
10688 IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still "
10689 "enabled\n");
10690
10691 exit_unlock:
10692 spin_unlock_irqrestore(&priv->lock, flags);
10693 }
10694
10695 static void ipw_bg_rf_kill(struct work_struct *work)
10696 {
10697 struct ipw_priv *priv =
10698 container_of(work, struct ipw_priv, rf_kill.work);
10699 mutex_lock(&priv->mutex);
10700 ipw_rf_kill(priv);
10701 mutex_unlock(&priv->mutex);
10702 }
10703
10704 static void ipw_link_up(struct ipw_priv *priv)
10705 {
10706 priv->last_seq_num = -1;
10707 priv->last_frag_num = -1;
10708 priv->last_packet_time = 0;
10709
10710 netif_carrier_on(priv->net_dev);
10711
10712 cancel_delayed_work(&priv->request_scan);
10713 cancel_delayed_work(&priv->request_direct_scan);
10714 cancel_delayed_work(&priv->request_passive_scan);
10715 cancel_delayed_work(&priv->scan_event);
10716 ipw_reset_stats(priv);
10717 /* Ensure the rate is updated immediately */
10718 priv->last_rate = ipw_get_current_rate(priv);
10719 ipw_gather_stats(priv);
10720 ipw_led_link_up(priv);
10721 notify_wx_assoc_event(priv);
10722
10723 if (priv->config & CFG_BACKGROUND_SCAN)
10724 queue_delayed_work(priv->workqueue, &priv->request_scan, HZ);
10725 }
10726
10727 static void ipw_bg_link_up(struct work_struct *work)
10728 {
10729 struct ipw_priv *priv =
10730 container_of(work, struct ipw_priv, link_up);
10731 mutex_lock(&priv->mutex);
10732 ipw_link_up(priv);
10733 mutex_unlock(&priv->mutex);
10734 }
10735
10736 static void ipw_link_down(struct ipw_priv *priv)
10737 {
10738 ipw_led_link_down(priv);
10739 netif_carrier_off(priv->net_dev);
10740 notify_wx_assoc_event(priv);
10741
10742 /* Cancel any queued work ... */
10743 cancel_delayed_work(&priv->request_scan);
10744 cancel_delayed_work(&priv->request_direct_scan);
10745 cancel_delayed_work(&priv->request_passive_scan);
10746 cancel_delayed_work(&priv->adhoc_check);
10747 cancel_delayed_work(&priv->gather_stats);
10748
10749 ipw_reset_stats(priv);
10750
10751 if (!(priv->status & STATUS_EXIT_PENDING)) {
10752 /* Queue up another scan... */
10753 queue_delayed_work(priv->workqueue, &priv->request_scan, 0);
10754 } else
10755 cancel_delayed_work(&priv->scan_event);
10756 }
10757
10758 static void ipw_bg_link_down(struct work_struct *work)
10759 {
10760 struct ipw_priv *priv =
10761 container_of(work, struct ipw_priv, link_down);
10762 mutex_lock(&priv->mutex);
10763 ipw_link_down(priv);
10764 mutex_unlock(&priv->mutex);
10765 }
10766
10767 static int __devinit ipw_setup_deferred_work(struct ipw_priv *priv)
10768 {
10769 int ret = 0;
10770
10771 priv->workqueue = create_workqueue(DRV_NAME);
10772 init_waitqueue_head(&priv->wait_command_queue);
10773 init_waitqueue_head(&priv->wait_state);
10774
10775 INIT_DELAYED_WORK(&priv->adhoc_check, ipw_bg_adhoc_check);
10776 INIT_WORK(&priv->associate, ipw_bg_associate);
10777 INIT_WORK(&priv->disassociate, ipw_bg_disassociate);
10778 INIT_WORK(&priv->system_config, ipw_system_config);
10779 INIT_WORK(&priv->rx_replenish, ipw_bg_rx_queue_replenish);
10780 INIT_WORK(&priv->adapter_restart, ipw_bg_adapter_restart);
10781 INIT_DELAYED_WORK(&priv->rf_kill, ipw_bg_rf_kill);
10782 INIT_WORK(&priv->up, ipw_bg_up);
10783 INIT_WORK(&priv->down, ipw_bg_down);
10784 INIT_DELAYED_WORK(&priv->request_scan, ipw_request_scan);
10785 INIT_DELAYED_WORK(&priv->request_direct_scan, ipw_request_direct_scan);
10786 INIT_DELAYED_WORK(&priv->request_passive_scan, ipw_request_passive_scan);
10787 INIT_DELAYED_WORK(&priv->scan_event, ipw_scan_event);
10788 INIT_DELAYED_WORK(&priv->gather_stats, ipw_bg_gather_stats);
10789 INIT_WORK(&priv->abort_scan, ipw_bg_abort_scan);
10790 INIT_WORK(&priv->roam, ipw_bg_roam);
10791 INIT_DELAYED_WORK(&priv->scan_check, ipw_bg_scan_check);
10792 INIT_WORK(&priv->link_up, ipw_bg_link_up);
10793 INIT_WORK(&priv->link_down, ipw_bg_link_down);
10794 INIT_DELAYED_WORK(&priv->led_link_on, ipw_bg_led_link_on);
10795 INIT_DELAYED_WORK(&priv->led_link_off, ipw_bg_led_link_off);
10796 INIT_DELAYED_WORK(&priv->led_act_off, ipw_bg_led_activity_off);
10797 INIT_WORK(&priv->merge_networks, ipw_merge_adhoc_network);
10798
10799 #ifdef CONFIG_IPW2200_QOS
10800 INIT_WORK(&priv->qos_activate, ipw_bg_qos_activate);
10801 #endif /* CONFIG_IPW2200_QOS */
10802
10803 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
10804 ipw_irq_tasklet, (unsigned long)priv);
10805
10806 return ret;
10807 }
10808
10809 static void shim__set_security(struct net_device *dev,
10810 struct libipw_security *sec)
10811 {
10812 struct ipw_priv *priv = libipw_priv(dev);
10813 int i;
10814 for (i = 0; i < 4; i++) {
10815 if (sec->flags & (1 << i)) {
10816 priv->ieee->sec.encode_alg[i] = sec->encode_alg[i];
10817 priv->ieee->sec.key_sizes[i] = sec->key_sizes[i];
10818 if (sec->key_sizes[i] == 0)
10819 priv->ieee->sec.flags &= ~(1 << i);
10820 else {
10821 memcpy(priv->ieee->sec.keys[i], sec->keys[i],
10822 sec->key_sizes[i]);
10823 priv->ieee->sec.flags |= (1 << i);
10824 }
10825 priv->status |= STATUS_SECURITY_UPDATED;
10826 } else if (sec->level != SEC_LEVEL_1)
10827 priv->ieee->sec.flags &= ~(1 << i);
10828 }
10829
10830 if (sec->flags & SEC_ACTIVE_KEY) {
10831 if (sec->active_key <= 3) {
10832 priv->ieee->sec.active_key = sec->active_key;
10833 priv->ieee->sec.flags |= SEC_ACTIVE_KEY;
10834 } else
10835 priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY;
10836 priv->status |= STATUS_SECURITY_UPDATED;
10837 } else
10838 priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY;
10839
10840 if ((sec->flags & SEC_AUTH_MODE) &&
10841 (priv->ieee->sec.auth_mode != sec->auth_mode)) {
10842 priv->ieee->sec.auth_mode = sec->auth_mode;
10843 priv->ieee->sec.flags |= SEC_AUTH_MODE;
10844 if (sec->auth_mode == WLAN_AUTH_SHARED_KEY)
10845 priv->capability |= CAP_SHARED_KEY;
10846 else
10847 priv->capability &= ~CAP_SHARED_KEY;
10848 priv->status |= STATUS_SECURITY_UPDATED;
10849 }
10850
10851 if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) {
10852 priv->ieee->sec.flags |= SEC_ENABLED;
10853 priv->ieee->sec.enabled = sec->enabled;
10854 priv->status |= STATUS_SECURITY_UPDATED;
10855 if (sec->enabled)
10856 priv->capability |= CAP_PRIVACY_ON;
10857 else
10858 priv->capability &= ~CAP_PRIVACY_ON;
10859 }
10860
10861 if (sec->flags & SEC_ENCRYPT)
10862 priv->ieee->sec.encrypt = sec->encrypt;
10863
10864 if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) {
10865 priv->ieee->sec.level = sec->level;
10866 priv->ieee->sec.flags |= SEC_LEVEL;
10867 priv->status |= STATUS_SECURITY_UPDATED;
10868 }
10869
10870 if (!priv->ieee->host_encrypt && (sec->flags & SEC_ENCRYPT))
10871 ipw_set_hwcrypto_keys(priv);
10872
10873 /* To match current functionality of ipw2100 (which works well w/
10874 * various supplicants, we don't force a disassociate if the
10875 * privacy capability changes ... */
10876 #if 0
10877 if ((priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) &&
10878 (((priv->assoc_request.capability &
10879 cpu_to_le16(WLAN_CAPABILITY_PRIVACY)) && !sec->enabled) ||
10880 (!(priv->assoc_request.capability &
10881 cpu_to_le16(WLAN_CAPABILITY_PRIVACY)) && sec->enabled))) {
10882 IPW_DEBUG_ASSOC("Disassociating due to capability "
10883 "change.\n");
10884 ipw_disassociate(priv);
10885 }
10886 #endif
10887 }
10888
10889 static int init_supported_rates(struct ipw_priv *priv,
10890 struct ipw_supported_rates *rates)
10891 {
10892 /* TODO: Mask out rates based on priv->rates_mask */
10893
10894 memset(rates, 0, sizeof(*rates));
10895 /* configure supported rates */
10896 switch (priv->ieee->freq_band) {
10897 case LIBIPW_52GHZ_BAND:
10898 rates->ieee_mode = IPW_A_MODE;
10899 rates->purpose = IPW_RATE_CAPABILITIES;
10900 ipw_add_ofdm_scan_rates(rates, LIBIPW_CCK_MODULATION,
10901 LIBIPW_OFDM_DEFAULT_RATES_MASK);
10902 break;
10903
10904 default: /* Mixed or 2.4Ghz */
10905 rates->ieee_mode = IPW_G_MODE;
10906 rates->purpose = IPW_RATE_CAPABILITIES;
10907 ipw_add_cck_scan_rates(rates, LIBIPW_CCK_MODULATION,
10908 LIBIPW_CCK_DEFAULT_RATES_MASK);
10909 if (priv->ieee->modulation & LIBIPW_OFDM_MODULATION) {
10910 ipw_add_ofdm_scan_rates(rates, LIBIPW_CCK_MODULATION,
10911 LIBIPW_OFDM_DEFAULT_RATES_MASK);
10912 }
10913 break;
10914 }
10915
10916 return 0;
10917 }
10918
10919 static int ipw_config(struct ipw_priv *priv)
10920 {
10921 /* This is only called from ipw_up, which resets/reloads the firmware
10922 so, we don't need to first disable the card before we configure
10923 it */
10924 if (ipw_set_tx_power(priv))
10925 goto error;
10926
10927 /* initialize adapter address */
10928 if (ipw_send_adapter_address(priv, priv->net_dev->dev_addr))
10929 goto error;
10930
10931 /* set basic system config settings */
10932 init_sys_config(&priv->sys_config);
10933
10934 /* Support Bluetooth if we have BT h/w on board, and user wants to.
10935 * Does not support BT priority yet (don't abort or defer our Tx) */
10936 if (bt_coexist) {
10937 unsigned char bt_caps = priv->eeprom[EEPROM_SKU_CAPABILITY];
10938
10939 if (bt_caps & EEPROM_SKU_CAP_BT_CHANNEL_SIG)
10940 priv->sys_config.bt_coexistence
10941 |= CFG_BT_COEXISTENCE_SIGNAL_CHNL;
10942 if (bt_caps & EEPROM_SKU_CAP_BT_OOB)
10943 priv->sys_config.bt_coexistence
10944 |= CFG_BT_COEXISTENCE_OOB;
10945 }
10946
10947 #ifdef CONFIG_IPW2200_PROMISCUOUS
10948 if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) {
10949 priv->sys_config.accept_all_data_frames = 1;
10950 priv->sys_config.accept_non_directed_frames = 1;
10951 priv->sys_config.accept_all_mgmt_bcpr = 1;
10952 priv->sys_config.accept_all_mgmt_frames = 1;
10953 }
10954 #endif
10955
10956 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
10957 priv->sys_config.answer_broadcast_ssid_probe = 1;
10958 else
10959 priv->sys_config.answer_broadcast_ssid_probe = 0;
10960
10961 if (ipw_send_system_config(priv))
10962 goto error;
10963
10964 init_supported_rates(priv, &priv->rates);
10965 if (ipw_send_supported_rates(priv, &priv->rates))
10966 goto error;
10967
10968 /* Set request-to-send threshold */
10969 if (priv->rts_threshold) {
10970 if (ipw_send_rts_threshold(priv, priv->rts_threshold))
10971 goto error;
10972 }
10973 #ifdef CONFIG_IPW2200_QOS
10974 IPW_DEBUG_QOS("QoS: call ipw_qos_activate\n");
10975 ipw_qos_activate(priv, NULL);
10976 #endif /* CONFIG_IPW2200_QOS */
10977
10978 if (ipw_set_random_seed(priv))
10979 goto error;
10980
10981 /* final state transition to the RUN state */
10982 if (ipw_send_host_complete(priv))
10983 goto error;
10984
10985 priv->status |= STATUS_INIT;
10986
10987 ipw_led_init(priv);
10988 ipw_led_radio_on(priv);
10989 priv->notif_missed_beacons = 0;
10990
10991 /* Set hardware WEP key if it is configured. */
10992 if ((priv->capability & CAP_PRIVACY_ON) &&
10993 (priv->ieee->sec.level == SEC_LEVEL_1) &&
10994 !(priv->ieee->host_encrypt || priv->ieee->host_decrypt))
10995 ipw_set_hwcrypto_keys(priv);
10996
10997 return 0;
10998
10999 error:
11000 return -EIO;
11001 }
11002
11003 /*
11004 * NOTE:
11005 *
11006 * These tables have been tested in conjunction with the
11007 * Intel PRO/Wireless 2200BG and 2915ABG Network Connection Adapters.
11008 *
11009 * Altering this values, using it on other hardware, or in geographies
11010 * not intended for resale of the above mentioned Intel adapters has
11011 * not been tested.
11012 *
11013 * Remember to update the table in README.ipw2200 when changing this
11014 * table.
11015 *
11016 */
11017 static const struct libipw_geo ipw_geos[] = {
11018 { /* Restricted */
11019 "---",
11020 .bg_channels = 11,
11021 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11022 {2427, 4}, {2432, 5}, {2437, 6},
11023 {2442, 7}, {2447, 8}, {2452, 9},
11024 {2457, 10}, {2462, 11}},
11025 },
11026
11027 { /* Custom US/Canada */
11028 "ZZF",
11029 .bg_channels = 11,
11030 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11031 {2427, 4}, {2432, 5}, {2437, 6},
11032 {2442, 7}, {2447, 8}, {2452, 9},
11033 {2457, 10}, {2462, 11}},
11034 .a_channels = 8,
11035 .a = {{5180, 36},
11036 {5200, 40},
11037 {5220, 44},
11038 {5240, 48},
11039 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
11040 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
11041 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
11042 {5320, 64, LIBIPW_CH_PASSIVE_ONLY}},
11043 },
11044
11045 { /* Rest of World */
11046 "ZZD",
11047 .bg_channels = 13,
11048 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11049 {2427, 4}, {2432, 5}, {2437, 6},
11050 {2442, 7}, {2447, 8}, {2452, 9},
11051 {2457, 10}, {2462, 11}, {2467, 12},
11052 {2472, 13}},
11053 },
11054
11055 { /* Custom USA & Europe & High */
11056 "ZZA",
11057 .bg_channels = 11,
11058 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11059 {2427, 4}, {2432, 5}, {2437, 6},
11060 {2442, 7}, {2447, 8}, {2452, 9},
11061 {2457, 10}, {2462, 11}},
11062 .a_channels = 13,
11063 .a = {{5180, 36},
11064 {5200, 40},
11065 {5220, 44},
11066 {5240, 48},
11067 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
11068 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
11069 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
11070 {5320, 64, LIBIPW_CH_PASSIVE_ONLY},
11071 {5745, 149},
11072 {5765, 153},
11073 {5785, 157},
11074 {5805, 161},
11075 {5825, 165}},
11076 },
11077
11078 { /* Custom NA & Europe */
11079 "ZZB",
11080 .bg_channels = 11,
11081 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11082 {2427, 4}, {2432, 5}, {2437, 6},
11083 {2442, 7}, {2447, 8}, {2452, 9},
11084 {2457, 10}, {2462, 11}},
11085 .a_channels = 13,
11086 .a = {{5180, 36},
11087 {5200, 40},
11088 {5220, 44},
11089 {5240, 48},
11090 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
11091 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
11092 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
11093 {5320, 64, LIBIPW_CH_PASSIVE_ONLY},
11094 {5745, 149, LIBIPW_CH_PASSIVE_ONLY},
11095 {5765, 153, LIBIPW_CH_PASSIVE_ONLY},
11096 {5785, 157, LIBIPW_CH_PASSIVE_ONLY},
11097 {5805, 161, LIBIPW_CH_PASSIVE_ONLY},
11098 {5825, 165, LIBIPW_CH_PASSIVE_ONLY}},
11099 },
11100
11101 { /* Custom Japan */
11102 "ZZC",
11103 .bg_channels = 11,
11104 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11105 {2427, 4}, {2432, 5}, {2437, 6},
11106 {2442, 7}, {2447, 8}, {2452, 9},
11107 {2457, 10}, {2462, 11}},
11108 .a_channels = 4,
11109 .a = {{5170, 34}, {5190, 38},
11110 {5210, 42}, {5230, 46}},
11111 },
11112
11113 { /* Custom */
11114 "ZZM",
11115 .bg_channels = 11,
11116 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11117 {2427, 4}, {2432, 5}, {2437, 6},
11118 {2442, 7}, {2447, 8}, {2452, 9},
11119 {2457, 10}, {2462, 11}},
11120 },
11121
11122 { /* Europe */
11123 "ZZE",
11124 .bg_channels = 13,
11125 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11126 {2427, 4}, {2432, 5}, {2437, 6},
11127 {2442, 7}, {2447, 8}, {2452, 9},
11128 {2457, 10}, {2462, 11}, {2467, 12},
11129 {2472, 13}},
11130 .a_channels = 19,
11131 .a = {{5180, 36},
11132 {5200, 40},
11133 {5220, 44},
11134 {5240, 48},
11135 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
11136 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
11137 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
11138 {5320, 64, LIBIPW_CH_PASSIVE_ONLY},
11139 {5500, 100, LIBIPW_CH_PASSIVE_ONLY},
11140 {5520, 104, LIBIPW_CH_PASSIVE_ONLY},
11141 {5540, 108, LIBIPW_CH_PASSIVE_ONLY},
11142 {5560, 112, LIBIPW_CH_PASSIVE_ONLY},
11143 {5580, 116, LIBIPW_CH_PASSIVE_ONLY},
11144 {5600, 120, LIBIPW_CH_PASSIVE_ONLY},
11145 {5620, 124, LIBIPW_CH_PASSIVE_ONLY},
11146 {5640, 128, LIBIPW_CH_PASSIVE_ONLY},
11147 {5660, 132, LIBIPW_CH_PASSIVE_ONLY},
11148 {5680, 136, LIBIPW_CH_PASSIVE_ONLY},
11149 {5700, 140, LIBIPW_CH_PASSIVE_ONLY}},
11150 },
11151
11152 { /* Custom Japan */
11153 "ZZJ",
11154 .bg_channels = 14,
11155 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11156 {2427, 4}, {2432, 5}, {2437, 6},
11157 {2442, 7}, {2447, 8}, {2452, 9},
11158 {2457, 10}, {2462, 11}, {2467, 12},
11159 {2472, 13}, {2484, 14, LIBIPW_CH_B_ONLY}},
11160 .a_channels = 4,
11161 .a = {{5170, 34}, {5190, 38},
11162 {5210, 42}, {5230, 46}},
11163 },
11164
11165 { /* Rest of World */
11166 "ZZR",
11167 .bg_channels = 14,
11168 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11169 {2427, 4}, {2432, 5}, {2437, 6},
11170 {2442, 7}, {2447, 8}, {2452, 9},
11171 {2457, 10}, {2462, 11}, {2467, 12},
11172 {2472, 13}, {2484, 14, LIBIPW_CH_B_ONLY |
11173 LIBIPW_CH_PASSIVE_ONLY}},
11174 },
11175
11176 { /* High Band */
11177 "ZZH",
11178 .bg_channels = 13,
11179 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11180 {2427, 4}, {2432, 5}, {2437, 6},
11181 {2442, 7}, {2447, 8}, {2452, 9},
11182 {2457, 10}, {2462, 11},
11183 {2467, 12, LIBIPW_CH_PASSIVE_ONLY},
11184 {2472, 13, LIBIPW_CH_PASSIVE_ONLY}},
11185 .a_channels = 4,
11186 .a = {{5745, 149}, {5765, 153},
11187 {5785, 157}, {5805, 161}},
11188 },
11189
11190 { /* Custom Europe */
11191 "ZZG",
11192 .bg_channels = 13,
11193 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11194 {2427, 4}, {2432, 5}, {2437, 6},
11195 {2442, 7}, {2447, 8}, {2452, 9},
11196 {2457, 10}, {2462, 11},
11197 {2467, 12}, {2472, 13}},
11198 .a_channels = 4,
11199 .a = {{5180, 36}, {5200, 40},
11200 {5220, 44}, {5240, 48}},
11201 },
11202
11203 { /* Europe */
11204 "ZZK",
11205 .bg_channels = 13,
11206 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11207 {2427, 4}, {2432, 5}, {2437, 6},
11208 {2442, 7}, {2447, 8}, {2452, 9},
11209 {2457, 10}, {2462, 11},
11210 {2467, 12, LIBIPW_CH_PASSIVE_ONLY},
11211 {2472, 13, LIBIPW_CH_PASSIVE_ONLY}},
11212 .a_channels = 24,
11213 .a = {{5180, 36, LIBIPW_CH_PASSIVE_ONLY},
11214 {5200, 40, LIBIPW_CH_PASSIVE_ONLY},
11215 {5220, 44, LIBIPW_CH_PASSIVE_ONLY},
11216 {5240, 48, LIBIPW_CH_PASSIVE_ONLY},
11217 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
11218 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
11219 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
11220 {5320, 64, LIBIPW_CH_PASSIVE_ONLY},
11221 {5500, 100, LIBIPW_CH_PASSIVE_ONLY},
11222 {5520, 104, LIBIPW_CH_PASSIVE_ONLY},
11223 {5540, 108, LIBIPW_CH_PASSIVE_ONLY},
11224 {5560, 112, LIBIPW_CH_PASSIVE_ONLY},
11225 {5580, 116, LIBIPW_CH_PASSIVE_ONLY},
11226 {5600, 120, LIBIPW_CH_PASSIVE_ONLY},
11227 {5620, 124, LIBIPW_CH_PASSIVE_ONLY},
11228 {5640, 128, LIBIPW_CH_PASSIVE_ONLY},
11229 {5660, 132, LIBIPW_CH_PASSIVE_ONLY},
11230 {5680, 136, LIBIPW_CH_PASSIVE_ONLY},
11231 {5700, 140, LIBIPW_CH_PASSIVE_ONLY},
11232 {5745, 149, LIBIPW_CH_PASSIVE_ONLY},
11233 {5765, 153, LIBIPW_CH_PASSIVE_ONLY},
11234 {5785, 157, LIBIPW_CH_PASSIVE_ONLY},
11235 {5805, 161, LIBIPW_CH_PASSIVE_ONLY},
11236 {5825, 165, LIBIPW_CH_PASSIVE_ONLY}},
11237 },
11238
11239 { /* Europe */
11240 "ZZL",
11241 .bg_channels = 11,
11242 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11243 {2427, 4}, {2432, 5}, {2437, 6},
11244 {2442, 7}, {2447, 8}, {2452, 9},
11245 {2457, 10}, {2462, 11}},
11246 .a_channels = 13,
11247 .a = {{5180, 36, LIBIPW_CH_PASSIVE_ONLY},
11248 {5200, 40, LIBIPW_CH_PASSIVE_ONLY},
11249 {5220, 44, LIBIPW_CH_PASSIVE_ONLY},
11250 {5240, 48, LIBIPW_CH_PASSIVE_ONLY},
11251 {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
11252 {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
11253 {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
11254 {5320, 64, LIBIPW_CH_PASSIVE_ONLY},
11255 {5745, 149, LIBIPW_CH_PASSIVE_ONLY},
11256 {5765, 153, LIBIPW_CH_PASSIVE_ONLY},
11257 {5785, 157, LIBIPW_CH_PASSIVE_ONLY},
11258 {5805, 161, LIBIPW_CH_PASSIVE_ONLY},
11259 {5825, 165, LIBIPW_CH_PASSIVE_ONLY}},
11260 }
11261 };
11262
11263 #define MAX_HW_RESTARTS 5
11264 static int ipw_up(struct ipw_priv *priv)
11265 {
11266 int rc, i, j;
11267
11268 /* Age scan list entries found before suspend */
11269 if (priv->suspend_time) {
11270 libipw_networks_age(priv->ieee, priv->suspend_time);
11271 priv->suspend_time = 0;
11272 }
11273
11274 if (priv->status & STATUS_EXIT_PENDING)
11275 return -EIO;
11276
11277 if (cmdlog && !priv->cmdlog) {
11278 priv->cmdlog = kcalloc(cmdlog, sizeof(*priv->cmdlog),
11279 GFP_KERNEL);
11280 if (priv->cmdlog == NULL) {
11281 IPW_ERROR("Error allocating %d command log entries.\n",
11282 cmdlog);
11283 return -ENOMEM;
11284 } else {
11285 priv->cmdlog_len = cmdlog;
11286 }
11287 }
11288
11289 for (i = 0; i < MAX_HW_RESTARTS; i++) {
11290 /* Load the microcode, firmware, and eeprom.
11291 * Also start the clocks. */
11292 rc = ipw_load(priv);
11293 if (rc) {
11294 IPW_ERROR("Unable to load firmware: %d\n", rc);
11295 return rc;
11296 }
11297
11298 ipw_init_ordinals(priv);
11299 if (!(priv->config & CFG_CUSTOM_MAC))
11300 eeprom_parse_mac(priv, priv->mac_addr);
11301 memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
11302 memcpy(priv->net_dev->perm_addr, priv->mac_addr, ETH_ALEN);
11303
11304 for (j = 0; j < ARRAY_SIZE(ipw_geos); j++) {
11305 if (!memcmp(&priv->eeprom[EEPROM_COUNTRY_CODE],
11306 ipw_geos[j].name, 3))
11307 break;
11308 }
11309 if (j == ARRAY_SIZE(ipw_geos)) {
11310 IPW_WARNING("SKU [%c%c%c] not recognized.\n",
11311 priv->eeprom[EEPROM_COUNTRY_CODE + 0],
11312 priv->eeprom[EEPROM_COUNTRY_CODE + 1],
11313 priv->eeprom[EEPROM_COUNTRY_CODE + 2]);
11314 j = 0;
11315 }
11316 if (libipw_set_geo(priv->ieee, &ipw_geos[j])) {
11317 IPW_WARNING("Could not set geography.");
11318 return 0;
11319 }
11320
11321 if (priv->status & STATUS_RF_KILL_SW) {
11322 IPW_WARNING("Radio disabled by module parameter.\n");
11323 return 0;
11324 } else if (rf_kill_active(priv)) {
11325 IPW_WARNING("Radio Frequency Kill Switch is On:\n"
11326 "Kill switch must be turned off for "
11327 "wireless networking to work.\n");
11328 queue_delayed_work(priv->workqueue, &priv->rf_kill,
11329 2 * HZ);
11330 return 0;
11331 }
11332
11333 rc = ipw_config(priv);
11334 if (!rc) {
11335 IPW_DEBUG_INFO("Configured device on count %i\n", i);
11336
11337 /* If configure to try and auto-associate, kick
11338 * off a scan. */
11339 queue_delayed_work(priv->workqueue,
11340 &priv->request_scan, 0);
11341
11342 return 0;
11343 }
11344
11345 IPW_DEBUG_INFO("Device configuration failed: 0x%08X\n", rc);
11346 IPW_DEBUG_INFO("Failed to config device on retry %d of %d\n",
11347 i, MAX_HW_RESTARTS);
11348
11349 /* We had an error bringing up the hardware, so take it
11350 * all the way back down so we can try again */
11351 ipw_down(priv);
11352 }
11353
11354 /* tried to restart and config the device for as long as our
11355 * patience could withstand */
11356 IPW_ERROR("Unable to initialize device after %d attempts.\n", i);
11357
11358 return -EIO;
11359 }
11360
11361 static void ipw_bg_up(struct work_struct *work)
11362 {
11363 struct ipw_priv *priv =
11364 container_of(work, struct ipw_priv, up);
11365 mutex_lock(&priv->mutex);
11366 ipw_up(priv);
11367 mutex_unlock(&priv->mutex);
11368 }
11369
11370 static void ipw_deinit(struct ipw_priv *priv)
11371 {
11372 int i;
11373
11374 if (priv->status & STATUS_SCANNING) {
11375 IPW_DEBUG_INFO("Aborting scan during shutdown.\n");
11376 ipw_abort_scan(priv);
11377 }
11378
11379 if (priv->status & STATUS_ASSOCIATED) {
11380 IPW_DEBUG_INFO("Disassociating during shutdown.\n");
11381 ipw_disassociate(priv);
11382 }
11383
11384 ipw_led_shutdown(priv);
11385
11386 /* Wait up to 1s for status to change to not scanning and not
11387 * associated (disassociation can take a while for a ful 802.11
11388 * exchange */
11389 for (i = 1000; i && (priv->status &
11390 (STATUS_DISASSOCIATING |
11391 STATUS_ASSOCIATED | STATUS_SCANNING)); i--)
11392 udelay(10);
11393
11394 if (priv->status & (STATUS_DISASSOCIATING |
11395 STATUS_ASSOCIATED | STATUS_SCANNING))
11396 IPW_DEBUG_INFO("Still associated or scanning...\n");
11397 else
11398 IPW_DEBUG_INFO("Took %dms to de-init\n", 1000 - i);
11399
11400 /* Attempt to disable the card */
11401 ipw_send_card_disable(priv, 0);
11402
11403 priv->status &= ~STATUS_INIT;
11404 }
11405
11406 static void ipw_down(struct ipw_priv *priv)
11407 {
11408 int exit_pending = priv->status & STATUS_EXIT_PENDING;
11409
11410 priv->status |= STATUS_EXIT_PENDING;
11411
11412 if (ipw_is_init(priv))
11413 ipw_deinit(priv);
11414
11415 /* Wipe out the EXIT_PENDING status bit if we are not actually
11416 * exiting the module */
11417 if (!exit_pending)
11418 priv->status &= ~STATUS_EXIT_PENDING;
11419
11420 /* tell the device to stop sending interrupts */
11421 ipw_disable_interrupts(priv);
11422
11423 /* Clear all bits but the RF Kill */
11424 priv->status &= STATUS_RF_KILL_MASK | STATUS_EXIT_PENDING;
11425 netif_carrier_off(priv->net_dev);
11426
11427 ipw_stop_nic(priv);
11428
11429 ipw_led_radio_off(priv);
11430 }
11431
11432 static void ipw_bg_down(struct work_struct *work)
11433 {
11434 struct ipw_priv *priv =
11435 container_of(work, struct ipw_priv, down);
11436 mutex_lock(&priv->mutex);
11437 ipw_down(priv);
11438 mutex_unlock(&priv->mutex);
11439 }
11440
11441 /* Called by register_netdev() */
11442 static int ipw_net_init(struct net_device *dev)
11443 {
11444 int i, rc = 0;
11445 struct ipw_priv *priv = libipw_priv(dev);
11446 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
11447 struct wireless_dev *wdev = &priv->ieee->wdev;
11448 mutex_lock(&priv->mutex);
11449
11450 if (ipw_up(priv)) {
11451 rc = -EIO;
11452 goto out;
11453 }
11454
11455 memcpy(wdev->wiphy->perm_addr, priv->mac_addr, ETH_ALEN);
11456
11457 /* fill-out priv->ieee->bg_band */
11458 if (geo->bg_channels) {
11459 struct ieee80211_supported_band *bg_band = &priv->ieee->bg_band;
11460
11461 bg_band->band = IEEE80211_BAND_2GHZ;
11462 bg_band->n_channels = geo->bg_channels;
11463 bg_band->channels =
11464 kzalloc(geo->bg_channels *
11465 sizeof(struct ieee80211_channel), GFP_KERNEL);
11466 /* translate geo->bg to bg_band.channels */
11467 for (i = 0; i < geo->bg_channels; i++) {
11468 bg_band->channels[i].band = IEEE80211_BAND_2GHZ;
11469 bg_band->channels[i].center_freq = geo->bg[i].freq;
11470 bg_band->channels[i].hw_value = geo->bg[i].channel;
11471 bg_band->channels[i].max_power = geo->bg[i].max_power;
11472 if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY)
11473 bg_band->channels[i].flags |=
11474 IEEE80211_CHAN_PASSIVE_SCAN;
11475 if (geo->bg[i].flags & LIBIPW_CH_NO_IBSS)
11476 bg_band->channels[i].flags |=
11477 IEEE80211_CHAN_NO_IBSS;
11478 if (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT)
11479 bg_band->channels[i].flags |=
11480 IEEE80211_CHAN_RADAR;
11481 /* No equivalent for LIBIPW_CH_80211H_RULES,
11482 LIBIPW_CH_UNIFORM_SPREADING, or
11483 LIBIPW_CH_B_ONLY... */
11484 }
11485 /* point at bitrate info */
11486 bg_band->bitrates = ipw2200_bg_rates;
11487 bg_band->n_bitrates = ipw2200_num_bg_rates;
11488
11489 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = bg_band;
11490 }
11491
11492 /* fill-out priv->ieee->a_band */
11493 if (geo->a_channels) {
11494 struct ieee80211_supported_band *a_band = &priv->ieee->a_band;
11495
11496 a_band->band = IEEE80211_BAND_5GHZ;
11497 a_band->n_channels = geo->a_channels;
11498 a_band->channels =
11499 kzalloc(geo->a_channels *
11500 sizeof(struct ieee80211_channel), GFP_KERNEL);
11501 /* translate geo->bg to a_band.channels */
11502 for (i = 0; i < geo->a_channels; i++) {
11503 a_band->channels[i].band = IEEE80211_BAND_2GHZ;
11504 a_band->channels[i].center_freq = geo->a[i].freq;
11505 a_band->channels[i].hw_value = geo->a[i].channel;
11506 a_band->channels[i].max_power = geo->a[i].max_power;
11507 if (geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY)
11508 a_band->channels[i].flags |=
11509 IEEE80211_CHAN_PASSIVE_SCAN;
11510 if (geo->a[i].flags & LIBIPW_CH_NO_IBSS)
11511 a_band->channels[i].flags |=
11512 IEEE80211_CHAN_NO_IBSS;
11513 if (geo->a[i].flags & LIBIPW_CH_RADAR_DETECT)
11514 a_band->channels[i].flags |=
11515 IEEE80211_CHAN_RADAR;
11516 /* No equivalent for LIBIPW_CH_80211H_RULES,
11517 LIBIPW_CH_UNIFORM_SPREADING, or
11518 LIBIPW_CH_B_ONLY... */
11519 }
11520 /* point at bitrate info */
11521 a_band->bitrates = ipw2200_a_rates;
11522 a_band->n_bitrates = ipw2200_num_a_rates;
11523
11524 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = a_band;
11525 }
11526
11527 set_wiphy_dev(wdev->wiphy, &priv->pci_dev->dev);
11528
11529 /* With that information in place, we can now register the wiphy... */
11530 if (wiphy_register(wdev->wiphy)) {
11531 rc = -EIO;
11532 goto out;
11533 }
11534
11535 out:
11536 mutex_unlock(&priv->mutex);
11537 return rc;
11538 }
11539
11540 /* PCI driver stuff */
11541 static DEFINE_PCI_DEVICE_TABLE(card_ids) = {
11542 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2701, 0, 0, 0},
11543 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2702, 0, 0, 0},
11544 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2711, 0, 0, 0},
11545 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2712, 0, 0, 0},
11546 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2721, 0, 0, 0},
11547 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2722, 0, 0, 0},
11548 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2731, 0, 0, 0},
11549 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2732, 0, 0, 0},
11550 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2741, 0, 0, 0},
11551 {PCI_VENDOR_ID_INTEL, 0x1043, 0x103c, 0x2741, 0, 0, 0},
11552 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2742, 0, 0, 0},
11553 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2751, 0, 0, 0},
11554 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2752, 0, 0, 0},
11555 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2753, 0, 0, 0},
11556 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2754, 0, 0, 0},
11557 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2761, 0, 0, 0},
11558 {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2762, 0, 0, 0},
11559 {PCI_VDEVICE(INTEL, 0x104f), 0},
11560 {PCI_VDEVICE(INTEL, 0x4220), 0}, /* BG */
11561 {PCI_VDEVICE(INTEL, 0x4221), 0}, /* BG */
11562 {PCI_VDEVICE(INTEL, 0x4223), 0}, /* ABG */
11563 {PCI_VDEVICE(INTEL, 0x4224), 0}, /* ABG */
11564
11565 /* required last entry */
11566 {0,}
11567 };
11568
11569 MODULE_DEVICE_TABLE(pci, card_ids);
11570
11571 static struct attribute *ipw_sysfs_entries[] = {
11572 &dev_attr_rf_kill.attr,
11573 &dev_attr_direct_dword.attr,
11574 &dev_attr_indirect_byte.attr,
11575 &dev_attr_indirect_dword.attr,
11576 &dev_attr_mem_gpio_reg.attr,
11577 &dev_attr_command_event_reg.attr,
11578 &dev_attr_nic_type.attr,
11579 &dev_attr_status.attr,
11580 &dev_attr_cfg.attr,
11581 &dev_attr_error.attr,
11582 &dev_attr_event_log.attr,
11583 &dev_attr_cmd_log.attr,
11584 &dev_attr_eeprom_delay.attr,
11585 &dev_attr_ucode_version.attr,
11586 &dev_attr_rtc.attr,
11587 &dev_attr_scan_age.attr,
11588 &dev_attr_led.attr,
11589 &dev_attr_speed_scan.attr,
11590 &dev_attr_net_stats.attr,
11591 &dev_attr_channels.attr,
11592 #ifdef CONFIG_IPW2200_PROMISCUOUS
11593 &dev_attr_rtap_iface.attr,
11594 &dev_attr_rtap_filter.attr,
11595 #endif
11596 NULL
11597 };
11598
11599 static struct attribute_group ipw_attribute_group = {
11600 .name = NULL, /* put in device directory */
11601 .attrs = ipw_sysfs_entries,
11602 };
11603
11604 #ifdef CONFIG_IPW2200_PROMISCUOUS
11605 static int ipw_prom_open(struct net_device *dev)
11606 {
11607 struct ipw_prom_priv *prom_priv = libipw_priv(dev);
11608 struct ipw_priv *priv = prom_priv->priv;
11609
11610 IPW_DEBUG_INFO("prom dev->open\n");
11611 netif_carrier_off(dev);
11612
11613 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
11614 priv->sys_config.accept_all_data_frames = 1;
11615 priv->sys_config.accept_non_directed_frames = 1;
11616 priv->sys_config.accept_all_mgmt_bcpr = 1;
11617 priv->sys_config.accept_all_mgmt_frames = 1;
11618
11619 ipw_send_system_config(priv);
11620 }
11621
11622 return 0;
11623 }
11624
11625 static int ipw_prom_stop(struct net_device *dev)
11626 {
11627 struct ipw_prom_priv *prom_priv = libipw_priv(dev);
11628 struct ipw_priv *priv = prom_priv->priv;
11629
11630 IPW_DEBUG_INFO("prom dev->stop\n");
11631
11632 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
11633 priv->sys_config.accept_all_data_frames = 0;
11634 priv->sys_config.accept_non_directed_frames = 0;
11635 priv->sys_config.accept_all_mgmt_bcpr = 0;
11636 priv->sys_config.accept_all_mgmt_frames = 0;
11637
11638 ipw_send_system_config(priv);
11639 }
11640
11641 return 0;
11642 }
11643
11644 static netdev_tx_t ipw_prom_hard_start_xmit(struct sk_buff *skb,
11645 struct net_device *dev)
11646 {
11647 IPW_DEBUG_INFO("prom dev->xmit\n");
11648 dev_kfree_skb(skb);
11649 return NETDEV_TX_OK;
11650 }
11651
11652 static const struct net_device_ops ipw_prom_netdev_ops = {
11653 .ndo_open = ipw_prom_open,
11654 .ndo_stop = ipw_prom_stop,
11655 .ndo_start_xmit = ipw_prom_hard_start_xmit,
11656 .ndo_change_mtu = libipw_change_mtu,
11657 .ndo_set_mac_address = eth_mac_addr,
11658 .ndo_validate_addr = eth_validate_addr,
11659 };
11660
11661 static int ipw_prom_alloc(struct ipw_priv *priv)
11662 {
11663 int rc = 0;
11664
11665 if (priv->prom_net_dev)
11666 return -EPERM;
11667
11668 priv->prom_net_dev = alloc_libipw(sizeof(struct ipw_prom_priv), 1);
11669 if (priv->prom_net_dev == NULL)
11670 return -ENOMEM;
11671
11672 priv->prom_priv = libipw_priv(priv->prom_net_dev);
11673 priv->prom_priv->ieee = netdev_priv(priv->prom_net_dev);
11674 priv->prom_priv->priv = priv;
11675
11676 strcpy(priv->prom_net_dev->name, "rtap%d");
11677 memcpy(priv->prom_net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
11678
11679 priv->prom_net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
11680 priv->prom_net_dev->netdev_ops = &ipw_prom_netdev_ops;
11681
11682 priv->prom_priv->ieee->iw_mode = IW_MODE_MONITOR;
11683 SET_NETDEV_DEV(priv->prom_net_dev, &priv->pci_dev->dev);
11684
11685 rc = register_netdev(priv->prom_net_dev);
11686 if (rc) {
11687 free_libipw(priv->prom_net_dev, 1);
11688 priv->prom_net_dev = NULL;
11689 return rc;
11690 }
11691
11692 return 0;
11693 }
11694
11695 static void ipw_prom_free(struct ipw_priv *priv)
11696 {
11697 if (!priv->prom_net_dev)
11698 return;
11699
11700 unregister_netdev(priv->prom_net_dev);
11701 free_libipw(priv->prom_net_dev, 1);
11702
11703 priv->prom_net_dev = NULL;
11704 }
11705
11706 #endif
11707
11708 static const struct net_device_ops ipw_netdev_ops = {
11709 .ndo_init = ipw_net_init,
11710 .ndo_open = ipw_net_open,
11711 .ndo_stop = ipw_net_stop,
11712 .ndo_set_multicast_list = ipw_net_set_multicast_list,
11713 .ndo_set_mac_address = ipw_net_set_mac_address,
11714 .ndo_start_xmit = libipw_xmit,
11715 .ndo_change_mtu = libipw_change_mtu,
11716 .ndo_validate_addr = eth_validate_addr,
11717 };
11718
11719 static int __devinit ipw_pci_probe(struct pci_dev *pdev,
11720 const struct pci_device_id *ent)
11721 {
11722 int err = 0;
11723 struct net_device *net_dev;
11724 void __iomem *base;
11725 u32 length, val;
11726 struct ipw_priv *priv;
11727 int i;
11728
11729 net_dev = alloc_libipw(sizeof(struct ipw_priv), 0);
11730 if (net_dev == NULL) {
11731 err = -ENOMEM;
11732 goto out;
11733 }
11734
11735 priv = libipw_priv(net_dev);
11736 priv->ieee = netdev_priv(net_dev);
11737
11738 priv->net_dev = net_dev;
11739 priv->pci_dev = pdev;
11740 ipw_debug_level = debug;
11741 spin_lock_init(&priv->irq_lock);
11742 spin_lock_init(&priv->lock);
11743 for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++)
11744 INIT_LIST_HEAD(&priv->ibss_mac_hash[i]);
11745
11746 mutex_init(&priv->mutex);
11747 if (pci_enable_device(pdev)) {
11748 err = -ENODEV;
11749 goto out_free_libipw;
11750 }
11751
11752 pci_set_master(pdev);
11753
11754 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
11755 if (!err)
11756 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
11757 if (err) {
11758 printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n");
11759 goto out_pci_disable_device;
11760 }
11761
11762 pci_set_drvdata(pdev, priv);
11763
11764 err = pci_request_regions(pdev, DRV_NAME);
11765 if (err)
11766 goto out_pci_disable_device;
11767
11768 /* We disable the RETRY_TIMEOUT register (0x41) to keep
11769 * PCI Tx retries from interfering with C3 CPU state */
11770 pci_read_config_dword(pdev, 0x40, &val);
11771 if ((val & 0x0000ff00) != 0)
11772 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
11773
11774 length = pci_resource_len(pdev, 0);
11775 priv->hw_len = length;
11776
11777 base = pci_ioremap_bar(pdev, 0);
11778 if (!base) {
11779 err = -ENODEV;
11780 goto out_pci_release_regions;
11781 }
11782
11783 priv->hw_base = base;
11784 IPW_DEBUG_INFO("pci_resource_len = 0x%08x\n", length);
11785 IPW_DEBUG_INFO("pci_resource_base = %p\n", base);
11786
11787 err = ipw_setup_deferred_work(priv);
11788 if (err) {
11789 IPW_ERROR("Unable to setup deferred work\n");
11790 goto out_iounmap;
11791 }
11792
11793 ipw_sw_reset(priv, 1);
11794
11795 err = request_irq(pdev->irq, ipw_isr, IRQF_SHARED, DRV_NAME, priv);
11796 if (err) {
11797 IPW_ERROR("Error allocating IRQ %d\n", pdev->irq);
11798 goto out_destroy_workqueue;
11799 }
11800
11801 SET_NETDEV_DEV(net_dev, &pdev->dev);
11802
11803 mutex_lock(&priv->mutex);
11804
11805 priv->ieee->hard_start_xmit = ipw_net_hard_start_xmit;
11806 priv->ieee->set_security = shim__set_security;
11807 priv->ieee->is_queue_full = ipw_net_is_queue_full;
11808
11809 #ifdef CONFIG_IPW2200_QOS
11810 priv->ieee->is_qos_active = ipw_is_qos_active;
11811 priv->ieee->handle_probe_response = ipw_handle_beacon;
11812 priv->ieee->handle_beacon = ipw_handle_probe_response;
11813 priv->ieee->handle_assoc_response = ipw_handle_assoc_response;
11814 #endif /* CONFIG_IPW2200_QOS */
11815
11816 priv->ieee->perfect_rssi = -20;
11817 priv->ieee->worst_rssi = -85;
11818
11819 net_dev->netdev_ops = &ipw_netdev_ops;
11820 priv->wireless_data.spy_data = &priv->ieee->spy_data;
11821 net_dev->wireless_data = &priv->wireless_data;
11822 net_dev->wireless_handlers = &ipw_wx_handler_def;
11823 net_dev->ethtool_ops = &ipw_ethtool_ops;
11824 net_dev->irq = pdev->irq;
11825 net_dev->base_addr = (unsigned long)priv->hw_base;
11826 net_dev->mem_start = pci_resource_start(pdev, 0);
11827 net_dev->mem_end = net_dev->mem_start + pci_resource_len(pdev, 0) - 1;
11828
11829 err = sysfs_create_group(&pdev->dev.kobj, &ipw_attribute_group);
11830 if (err) {
11831 IPW_ERROR("failed to create sysfs device attributes\n");
11832 mutex_unlock(&priv->mutex);
11833 goto out_release_irq;
11834 }
11835
11836 mutex_unlock(&priv->mutex);
11837 err = register_netdev(net_dev);
11838 if (err) {
11839 IPW_ERROR("failed to register network device\n");
11840 goto out_remove_sysfs;
11841 }
11842
11843 #ifdef CONFIG_IPW2200_PROMISCUOUS
11844 if (rtap_iface) {
11845 err = ipw_prom_alloc(priv);
11846 if (err) {
11847 IPW_ERROR("Failed to register promiscuous network "
11848 "device (error %d).\n", err);
11849 unregister_netdev(priv->net_dev);
11850 goto out_remove_sysfs;
11851 }
11852 }
11853 #endif
11854
11855 printk(KERN_INFO DRV_NAME ": Detected geography %s (%d 802.11bg "
11856 "channels, %d 802.11a channels)\n",
11857 priv->ieee->geo.name, priv->ieee->geo.bg_channels,
11858 priv->ieee->geo.a_channels);
11859
11860 return 0;
11861
11862 out_remove_sysfs:
11863 sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group);
11864 out_release_irq:
11865 free_irq(pdev->irq, priv);
11866 out_destroy_workqueue:
11867 destroy_workqueue(priv->workqueue);
11868 priv->workqueue = NULL;
11869 out_iounmap:
11870 iounmap(priv->hw_base);
11871 out_pci_release_regions:
11872 pci_release_regions(pdev);
11873 out_pci_disable_device:
11874 pci_disable_device(pdev);
11875 pci_set_drvdata(pdev, NULL);
11876 out_free_libipw:
11877 free_libipw(priv->net_dev, 0);
11878 out:
11879 return err;
11880 }
11881
11882 static void __devexit ipw_pci_remove(struct pci_dev *pdev)
11883 {
11884 struct ipw_priv *priv = pci_get_drvdata(pdev);
11885 struct list_head *p, *q;
11886 int i;
11887
11888 if (!priv)
11889 return;
11890
11891 mutex_lock(&priv->mutex);
11892
11893 priv->status |= STATUS_EXIT_PENDING;
11894 ipw_down(priv);
11895 sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group);
11896
11897 mutex_unlock(&priv->mutex);
11898
11899 unregister_netdev(priv->net_dev);
11900
11901 if (priv->rxq) {
11902 ipw_rx_queue_free(priv, priv->rxq);
11903 priv->rxq = NULL;
11904 }
11905 ipw_tx_queue_free(priv);
11906
11907 if (priv->cmdlog) {
11908 kfree(priv->cmdlog);
11909 priv->cmdlog = NULL;
11910 }
11911 /* ipw_down will ensure that there is no more pending work
11912 * in the workqueue's, so we can safely remove them now. */
11913 cancel_delayed_work(&priv->adhoc_check);
11914 cancel_delayed_work(&priv->gather_stats);
11915 cancel_delayed_work(&priv->request_scan);
11916 cancel_delayed_work(&priv->request_direct_scan);
11917 cancel_delayed_work(&priv->request_passive_scan);
11918 cancel_delayed_work(&priv->scan_event);
11919 cancel_delayed_work(&priv->rf_kill);
11920 cancel_delayed_work(&priv->scan_check);
11921 destroy_workqueue(priv->workqueue);
11922 priv->workqueue = NULL;
11923
11924 /* Free MAC hash list for ADHOC */
11925 for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++) {
11926 list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) {
11927 list_del(p);
11928 kfree(list_entry(p, struct ipw_ibss_seq, list));
11929 }
11930 }
11931
11932 kfree(priv->error);
11933 priv->error = NULL;
11934
11935 #ifdef CONFIG_IPW2200_PROMISCUOUS
11936 ipw_prom_free(priv);
11937 #endif
11938
11939 free_irq(pdev->irq, priv);
11940 iounmap(priv->hw_base);
11941 pci_release_regions(pdev);
11942 pci_disable_device(pdev);
11943 pci_set_drvdata(pdev, NULL);
11944 /* wiphy_unregister needs to be here, before free_libipw */
11945 wiphy_unregister(priv->ieee->wdev.wiphy);
11946 kfree(priv->ieee->a_band.channels);
11947 kfree(priv->ieee->bg_band.channels);
11948 free_libipw(priv->net_dev, 0);
11949 free_firmware();
11950 }
11951
11952 #ifdef CONFIG_PM
11953 static int ipw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
11954 {
11955 struct ipw_priv *priv = pci_get_drvdata(pdev);
11956 struct net_device *dev = priv->net_dev;
11957
11958 printk(KERN_INFO "%s: Going into suspend...\n", dev->name);
11959
11960 /* Take down the device; powers it off, etc. */
11961 ipw_down(priv);
11962
11963 /* Remove the PRESENT state of the device */
11964 netif_device_detach(dev);
11965
11966 pci_save_state(pdev);
11967 pci_disable_device(pdev);
11968 pci_set_power_state(pdev, pci_choose_state(pdev, state));
11969
11970 priv->suspend_at = get_seconds();
11971
11972 return 0;
11973 }
11974
11975 static int ipw_pci_resume(struct pci_dev *pdev)
11976 {
11977 struct ipw_priv *priv = pci_get_drvdata(pdev);
11978 struct net_device *dev = priv->net_dev;
11979 int err;
11980 u32 val;
11981
11982 printk(KERN_INFO "%s: Coming out of suspend...\n", dev->name);
11983
11984 pci_set_power_state(pdev, PCI_D0);
11985 err = pci_enable_device(pdev);
11986 if (err) {
11987 printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
11988 dev->name);
11989 return err;
11990 }
11991 pci_restore_state(pdev);
11992
11993 /*
11994 * Suspend/Resume resets the PCI configuration space, so we have to
11995 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
11996 * from interfering with C3 CPU state. pci_restore_state won't help
11997 * here since it only restores the first 64 bytes pci config header.
11998 */
11999 pci_read_config_dword(pdev, 0x40, &val);
12000 if ((val & 0x0000ff00) != 0)
12001 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
12002
12003 /* Set the device back into the PRESENT state; this will also wake
12004 * the queue of needed */
12005 netif_device_attach(dev);
12006
12007 priv->suspend_time = get_seconds() - priv->suspend_at;
12008
12009 /* Bring the device back up */
12010 queue_work(priv->workqueue, &priv->up);
12011
12012 return 0;
12013 }
12014 #endif
12015
12016 static void ipw_pci_shutdown(struct pci_dev *pdev)
12017 {
12018 struct ipw_priv *priv = pci_get_drvdata(pdev);
12019
12020 /* Take down the device; powers it off, etc. */
12021 ipw_down(priv);
12022
12023 pci_disable_device(pdev);
12024 }
12025
12026 /* driver initialization stuff */
12027 static struct pci_driver ipw_driver = {
12028 .name = DRV_NAME,
12029 .id_table = card_ids,
12030 .probe = ipw_pci_probe,
12031 .remove = __devexit_p(ipw_pci_remove),
12032 #ifdef CONFIG_PM
12033 .suspend = ipw_pci_suspend,
12034 .resume = ipw_pci_resume,
12035 #endif
12036 .shutdown = ipw_pci_shutdown,
12037 };
12038
12039 static int __init ipw_init(void)
12040 {
12041 int ret;
12042
12043 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
12044 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
12045
12046 ret = pci_register_driver(&ipw_driver);
12047 if (ret) {
12048 IPW_ERROR("Unable to initialize PCI module\n");
12049 return ret;
12050 }
12051
12052 ret = driver_create_file(&ipw_driver.driver, &driver_attr_debug_level);
12053 if (ret) {
12054 IPW_ERROR("Unable to create driver sysfs file\n");
12055 pci_unregister_driver(&ipw_driver);
12056 return ret;
12057 }
12058
12059 return ret;
12060 }
12061
12062 static void __exit ipw_exit(void)
12063 {
12064 driver_remove_file(&ipw_driver.driver, &driver_attr_debug_level);
12065 pci_unregister_driver(&ipw_driver);
12066 }
12067
12068 module_param(disable, int, 0444);
12069 MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
12070
12071 module_param(associate, int, 0444);
12072 MODULE_PARM_DESC(associate, "auto associate when scanning (default off)");
12073
12074 module_param(auto_create, int, 0444);
12075 MODULE_PARM_DESC(auto_create, "auto create adhoc network (default on)");
12076
12077 module_param_named(led, led_support, int, 0444);
12078 MODULE_PARM_DESC(led, "enable led control on some systems (default 0 off)");
12079
12080 module_param(debug, int, 0444);
12081 MODULE_PARM_DESC(debug, "debug output mask");
12082
12083 module_param_named(channel, default_channel, int, 0444);
12084 MODULE_PARM_DESC(channel, "channel to limit associate to (default 0 [ANY])");
12085
12086 #ifdef CONFIG_IPW2200_PROMISCUOUS
12087 module_param(rtap_iface, int, 0444);
12088 MODULE_PARM_DESC(rtap_iface, "create the rtap interface (1 - create, default 0)");
12089 #endif
12090
12091 #ifdef CONFIG_IPW2200_QOS
12092 module_param(qos_enable, int, 0444);
12093 MODULE_PARM_DESC(qos_enable, "enable all QoS functionalitis");
12094
12095 module_param(qos_burst_enable, int, 0444);
12096 MODULE_PARM_DESC(qos_burst_enable, "enable QoS burst mode");
12097
12098 module_param(qos_no_ack_mask, int, 0444);
12099 MODULE_PARM_DESC(qos_no_ack_mask, "mask Tx_Queue to no ack");
12100
12101 module_param(burst_duration_CCK, int, 0444);
12102 MODULE_PARM_DESC(burst_duration_CCK, "set CCK burst value");
12103
12104 module_param(burst_duration_OFDM, int, 0444);
12105 MODULE_PARM_DESC(burst_duration_OFDM, "set OFDM burst value");
12106 #endif /* CONFIG_IPW2200_QOS */
12107
12108 #ifdef CONFIG_IPW2200_MONITOR
12109 module_param_named(mode, network_mode, int, 0444);
12110 MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
12111 #else
12112 module_param_named(mode, network_mode, int, 0444);
12113 MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS)");
12114 #endif
12115
12116 module_param(bt_coexist, int, 0444);
12117 MODULE_PARM_DESC(bt_coexist, "enable bluetooth coexistence (default off)");
12118
12119 module_param(hwcrypto, int, 0444);
12120 MODULE_PARM_DESC(hwcrypto, "enable hardware crypto (default off)");
12121
12122 module_param(cmdlog, int, 0444);
12123 MODULE_PARM_DESC(cmdlog,
12124 "allocate a ring buffer for logging firmware commands");
12125
12126 module_param(roaming, int, 0444);
12127 MODULE_PARM_DESC(roaming, "enable roaming support (default on)");
12128
12129 module_param(antenna, int, 0444);
12130 MODULE_PARM_DESC(antenna, "select antenna 1=Main, 3=Aux, default 0 [both], 2=slow_diversity (choose the one with lower background noise)");
12131
12132 module_exit(ipw_exit);
12133 module_init(ipw_init);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree