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mac80211: remove IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE flag
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / wireless / rt2x00 / rt2500usb.c
blob449c8d393484b08b5730deeab729100fe6fa2b3a
1 /*
2 Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
3 <http://rt2x00.serialmonkey.com>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the
17 Free Software Foundation, Inc.,
18 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 */
20
21 /*
22 Module: rt2500usb
23 Abstract: rt2500usb device specific routines.
24 Supported chipsets: RT2570.
25 */
26
27 #include <linux/delay.h>
28 #include <linux/etherdevice.h>
29 #include <linux/init.h>
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/usb.h>
33
34 #include "rt2x00.h"
35 #include "rt2x00usb.h"
36 #include "rt2500usb.h"
37
38 /*
39 * Register access.
40 * All access to the CSR registers will go through the methods
41 * rt2500usb_register_read and rt2500usb_register_write.
42 * BBP and RF register require indirect register access,
43 * and use the CSR registers BBPCSR and RFCSR to achieve this.
44 * These indirect registers work with busy bits,
45 * and we will try maximal REGISTER_BUSY_COUNT times to access
46 * the register while taking a REGISTER_BUSY_DELAY us delay
47 * between each attampt. When the busy bit is still set at that time,
48 * the access attempt is considered to have failed,
49 * and we will print an error.
50 * If the usb_cache_mutex is already held then the _lock variants must
51 * be used instead.
52 */
53 static inline void rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
54 const unsigned int offset,
55 u16 *value)
56 {
57 __le16 reg;
58 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
59 USB_VENDOR_REQUEST_IN, offset,
60 &reg, sizeof(u16), REGISTER_TIMEOUT);
61 *value = le16_to_cpu(reg);
62 }
63
64 static inline void rt2500usb_register_read_lock(struct rt2x00_dev *rt2x00dev,
65 const unsigned int offset,
66 u16 *value)
67 {
68 __le16 reg;
69 rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ,
70 USB_VENDOR_REQUEST_IN, offset,
71 &reg, sizeof(u16), REGISTER_TIMEOUT);
72 *value = le16_to_cpu(reg);
73 }
74
75 static inline void rt2500usb_register_multiread(struct rt2x00_dev *rt2x00dev,
76 const unsigned int offset,
77 void *value, const u16 length)
78 {
79 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
80 USB_VENDOR_REQUEST_IN, offset,
81 value, length,
82 REGISTER_TIMEOUT16(length));
83 }
84
85 static inline void rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
86 const unsigned int offset,
87 u16 value)
88 {
89 __le16 reg = cpu_to_le16(value);
90 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
91 USB_VENDOR_REQUEST_OUT, offset,
92 &reg, sizeof(u16), REGISTER_TIMEOUT);
93 }
94
95 static inline void rt2500usb_register_write_lock(struct rt2x00_dev *rt2x00dev,
96 const unsigned int offset,
97 u16 value)
98 {
99 __le16 reg = cpu_to_le16(value);
100 rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_WRITE,
101 USB_VENDOR_REQUEST_OUT, offset,
102 &reg, sizeof(u16), REGISTER_TIMEOUT);
103 }
104
105 static inline void rt2500usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
106 const unsigned int offset,
107 void *value, const u16 length)
108 {
109 rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
110 USB_VENDOR_REQUEST_OUT, offset,
111 value, length,
112 REGISTER_TIMEOUT16(length));
113 }
114
115 static u16 rt2500usb_bbp_check(struct rt2x00_dev *rt2x00dev)
116 {
117 u16 reg;
118 unsigned int i;
119
120 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
121 rt2500usb_register_read_lock(rt2x00dev, PHY_CSR8, &reg);
122 if (!rt2x00_get_field16(reg, PHY_CSR8_BUSY))
123 break;
124 udelay(REGISTER_BUSY_DELAY);
125 }
126
127 return reg;
128 }
129
130 static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev,
131 const unsigned int word, const u8 value)
132 {
133 u16 reg;
134
135 mutex_lock(&rt2x00dev->usb_cache_mutex);
136
137 /*
138 * Wait until the BBP becomes ready.
139 */
140 reg = rt2500usb_bbp_check(rt2x00dev);
141 if (rt2x00_get_field16(reg, PHY_CSR8_BUSY))
142 goto exit_fail;
143
144 /*
145 * Write the data into the BBP.
146 */
147 reg = 0;
148 rt2x00_set_field16(&reg, PHY_CSR7_DATA, value);
149 rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, word);
150 rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 0);
151
152 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
153
154 mutex_unlock(&rt2x00dev->usb_cache_mutex);
155
156 return;
157
158 exit_fail:
159 mutex_unlock(&rt2x00dev->usb_cache_mutex);
160
161 ERROR(rt2x00dev, "PHY_CSR8 register busy. Write failed.\n");
162 }
163
164 static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
165 const unsigned int word, u8 *value)
166 {
167 u16 reg;
168
169 mutex_lock(&rt2x00dev->usb_cache_mutex);
170
171 /*
172 * Wait until the BBP becomes ready.
173 */
174 reg = rt2500usb_bbp_check(rt2x00dev);
175 if (rt2x00_get_field16(reg, PHY_CSR8_BUSY))
176 goto exit_fail;
177
178 /*
179 * Write the request into the BBP.
180 */
181 reg = 0;
182 rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, word);
183 rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 1);
184
185 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
186
187 /*
188 * Wait until the BBP becomes ready.
189 */
190 reg = rt2500usb_bbp_check(rt2x00dev);
191 if (rt2x00_get_field16(reg, PHY_CSR8_BUSY))
192 goto exit_fail;
193
194 rt2500usb_register_read_lock(rt2x00dev, PHY_CSR7, &reg);
195 *value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
196
197 mutex_unlock(&rt2x00dev->usb_cache_mutex);
198
199 return;
200
201 exit_fail:
202 mutex_unlock(&rt2x00dev->usb_cache_mutex);
203
204 ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n");
205 *value = 0xff;
206 }
207
208 static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
209 const unsigned int word, const u32 value)
210 {
211 u16 reg;
212 unsigned int i;
213
214 if (!word)
215 return;
216
217 mutex_lock(&rt2x00dev->usb_cache_mutex);
218
219 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
220 rt2500usb_register_read_lock(rt2x00dev, PHY_CSR10, &reg);
221 if (!rt2x00_get_field16(reg, PHY_CSR10_RF_BUSY))
222 goto rf_write;
223 udelay(REGISTER_BUSY_DELAY);
224 }
225
226 mutex_unlock(&rt2x00dev->usb_cache_mutex);
227 ERROR(rt2x00dev, "PHY_CSR10 register busy. Write failed.\n");
228 return;
229
230 rf_write:
231 reg = 0;
232 rt2x00_set_field16(&reg, PHY_CSR9_RF_VALUE, value);
233 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR9, reg);
234
235 reg = 0;
236 rt2x00_set_field16(&reg, PHY_CSR10_RF_VALUE, value >> 16);
237 rt2x00_set_field16(&reg, PHY_CSR10_RF_NUMBER_OF_BITS, 20);
238 rt2x00_set_field16(&reg, PHY_CSR10_RF_IF_SELECT, 0);
239 rt2x00_set_field16(&reg, PHY_CSR10_RF_BUSY, 1);
240
241 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR10, reg);
242 rt2x00_rf_write(rt2x00dev, word, value);
243
244 mutex_unlock(&rt2x00dev->usb_cache_mutex);
245 }
246
247 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
248 #define CSR_OFFSET(__word) ( CSR_REG_BASE + ((__word) * sizeof(u16)) )
249
250 static void rt2500usb_read_csr(struct rt2x00_dev *rt2x00dev,
251 const unsigned int word, u32 *data)
252 {
253 rt2500usb_register_read(rt2x00dev, CSR_OFFSET(word), (u16 *) data);
254 }
255
256 static void rt2500usb_write_csr(struct rt2x00_dev *rt2x00dev,
257 const unsigned int word, u32 data)
258 {
259 rt2500usb_register_write(rt2x00dev, CSR_OFFSET(word), data);
260 }
261
262 static const struct rt2x00debug rt2500usb_rt2x00debug = {
263 .owner = THIS_MODULE,
264 .csr = {
265 .read = rt2500usb_read_csr,
266 .write = rt2500usb_write_csr,
267 .word_size = sizeof(u16),
268 .word_count = CSR_REG_SIZE / sizeof(u16),
269 },
270 .eeprom = {
271 .read = rt2x00_eeprom_read,
272 .write = rt2x00_eeprom_write,
273 .word_size = sizeof(u16),
274 .word_count = EEPROM_SIZE / sizeof(u16),
275 },
276 .bbp = {
277 .read = rt2500usb_bbp_read,
278 .write = rt2500usb_bbp_write,
279 .word_size = sizeof(u8),
280 .word_count = BBP_SIZE / sizeof(u8),
281 },
282 .rf = {
283 .read = rt2x00_rf_read,
284 .write = rt2500usb_rf_write,
285 .word_size = sizeof(u32),
286 .word_count = RF_SIZE / sizeof(u32),
287 },
288 };
289 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
290
291 #ifdef CONFIG_RT2500USB_LEDS
292 static void rt2500usb_brightness_set(struct led_classdev *led_cdev,
293 enum led_brightness brightness)
294 {
295 struct rt2x00_led *led =
296 container_of(led_cdev, struct rt2x00_led, led_dev);
297 unsigned int enabled = brightness != LED_OFF;
298 u16 reg;
299
300 rt2500usb_register_read(led->rt2x00dev, MAC_CSR20, &reg);
301
302 if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC)
303 rt2x00_set_field16(&reg, MAC_CSR20_LINK, enabled);
304 else if (led->type == LED_TYPE_ACTIVITY)
305 rt2x00_set_field16(&reg, MAC_CSR20_ACTIVITY, enabled);
306
307 rt2500usb_register_write(led->rt2x00dev, MAC_CSR20, reg);
308 }
309
310 static int rt2500usb_blink_set(struct led_classdev *led_cdev,
311 unsigned long *delay_on,
312 unsigned long *delay_off)
313 {
314 struct rt2x00_led *led =
315 container_of(led_cdev, struct rt2x00_led, led_dev);
316 u16 reg;
317
318 rt2500usb_register_read(led->rt2x00dev, MAC_CSR21, &reg);
319 rt2x00_set_field16(&reg, MAC_CSR21_ON_PERIOD, *delay_on);
320 rt2x00_set_field16(&reg, MAC_CSR21_OFF_PERIOD, *delay_off);
321 rt2500usb_register_write(led->rt2x00dev, MAC_CSR21, reg);
322
323 return 0;
324 }
325
326 static void rt2500usb_init_led(struct rt2x00_dev *rt2x00dev,
327 struct rt2x00_led *led,
328 enum led_type type)
329 {
330 led->rt2x00dev = rt2x00dev;
331 led->type = type;
332 led->led_dev.brightness_set = rt2500usb_brightness_set;
333 led->led_dev.blink_set = rt2500usb_blink_set;
334 led->flags = LED_INITIALIZED;
335 }
336 #endif /* CONFIG_RT2500USB_LEDS */
337
338 /*
339 * Configuration handlers.
340 */
341 static void rt2500usb_config_filter(struct rt2x00_dev *rt2x00dev,
342 const unsigned int filter_flags)
343 {
344 u16 reg;
345
346 /*
347 * Start configuration steps.
348 * Note that the version error will always be dropped
349 * and broadcast frames will always be accepted since
350 * there is no filter for it at this time.
351 */
352 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
353 rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CRC,
354 !(filter_flags & FIF_FCSFAIL));
355 rt2x00_set_field16(&reg, TXRX_CSR2_DROP_PHYSICAL,
356 !(filter_flags & FIF_PLCPFAIL));
357 rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL,
358 !(filter_flags & FIF_CONTROL));
359 rt2x00_set_field16(&reg, TXRX_CSR2_DROP_NOT_TO_ME,
360 !(filter_flags & FIF_PROMISC_IN_BSS));
361 rt2x00_set_field16(&reg, TXRX_CSR2_DROP_TODS,
362 !(filter_flags & FIF_PROMISC_IN_BSS) &&
363 !rt2x00dev->intf_ap_count);
364 rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 1);
365 rt2x00_set_field16(&reg, TXRX_CSR2_DROP_MULTICAST,
366 !(filter_flags & FIF_ALLMULTI));
367 rt2x00_set_field16(&reg, TXRX_CSR2_DROP_BROADCAST, 0);
368 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
369 }
370
371 static void rt2500usb_config_intf(struct rt2x00_dev *rt2x00dev,
372 struct rt2x00_intf *intf,
373 struct rt2x00intf_conf *conf,
374 const unsigned int flags)
375 {
376 unsigned int bcn_preload;
377 u16 reg;
378
379 if (flags & CONFIG_UPDATE_TYPE) {
380 /*
381 * Enable beacon config
382 */
383 bcn_preload = PREAMBLE + get_duration(IEEE80211_HEADER, 20);
384 rt2500usb_register_read(rt2x00dev, TXRX_CSR20, &reg);
385 rt2x00_set_field16(&reg, TXRX_CSR20_OFFSET, bcn_preload >> 6);
386 rt2x00_set_field16(&reg, TXRX_CSR20_BCN_EXPECT_WINDOW,
387 2 * (conf->type != IEEE80211_IF_TYPE_STA));
388 rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg);
389
390 /*
391 * Enable synchronisation.
392 */
393 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
394 rt2x00_set_field16(&reg, TXRX_CSR18_OFFSET, 0);
395 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
396
397 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
398 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
399 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, conf->sync);
400 rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
401 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
402 }
403
404 if (flags & CONFIG_UPDATE_MAC)
405 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, conf->mac,
406 (3 * sizeof(__le16)));
407
408 if (flags & CONFIG_UPDATE_BSSID)
409 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, conf->bssid,
410 (3 * sizeof(__le16)));
411 }
412
413 static void rt2500usb_config_erp(struct rt2x00_dev *rt2x00dev,
414 struct rt2x00lib_erp *erp)
415 {
416 u16 reg;
417
418 rt2500usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
419 rt2x00_set_field16(&reg, TXRX_CSR1_ACK_TIMEOUT, erp->ack_timeout);
420 rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
421
422 rt2500usb_register_read(rt2x00dev, TXRX_CSR10, &reg);
423 rt2x00_set_field16(&reg, TXRX_CSR10_AUTORESPOND_PREAMBLE,
424 !!erp->short_preamble);
425 rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
426 }
427
428 static void rt2500usb_config_phymode(struct rt2x00_dev *rt2x00dev,
429 const int basic_rate_mask)
430 {
431 rt2500usb_register_write(rt2x00dev, TXRX_CSR11, basic_rate_mask);
432 }
433
434 static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev,
435 struct rf_channel *rf, const int txpower)
436 {
437 /*
438 * Set TXpower.
439 */
440 rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
441
442 /*
443 * For RT2525E we should first set the channel to half band higher.
444 */
445 if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
446 static const u32 vals[] = {
447 0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
448 0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
449 0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
450 0x00000902, 0x00000906
451 };
452
453 rt2500usb_rf_write(rt2x00dev, 2, vals[rf->channel - 1]);
454 if (rf->rf4)
455 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
456 }
457
458 rt2500usb_rf_write(rt2x00dev, 1, rf->rf1);
459 rt2500usb_rf_write(rt2x00dev, 2, rf->rf2);
460 rt2500usb_rf_write(rt2x00dev, 3, rf->rf3);
461 if (rf->rf4)
462 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
463 }
464
465 static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev,
466 const int txpower)
467 {
468 u32 rf3;
469
470 rt2x00_rf_read(rt2x00dev, 3, &rf3);
471 rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
472 rt2500usb_rf_write(rt2x00dev, 3, rf3);
473 }
474
475 static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev,
476 struct antenna_setup *ant)
477 {
478 u8 r2;
479 u8 r14;
480 u16 csr5;
481 u16 csr6;
482
483 /*
484 * We should never come here because rt2x00lib is supposed
485 * to catch this and send us the correct antenna explicitely.
486 */
487 BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
488 ant->tx == ANTENNA_SW_DIVERSITY);
489
490 rt2500usb_bbp_read(rt2x00dev, 2, &r2);
491 rt2500usb_bbp_read(rt2x00dev, 14, &r14);
492 rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5);
493 rt2500usb_register_read(rt2x00dev, PHY_CSR6, &csr6);
494
495 /*
496 * Configure the TX antenna.
497 */
498 switch (ant->tx) {
499 case ANTENNA_HW_DIVERSITY:
500 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 1);
501 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 1);
502 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 1);
503 break;
504 case ANTENNA_A:
505 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
506 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0);
507 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0);
508 break;
509 case ANTENNA_B:
510 default:
511 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
512 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2);
513 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2);
514 break;
515 }
516
517 /*
518 * Configure the RX antenna.
519 */
520 switch (ant->rx) {
521 case ANTENNA_HW_DIVERSITY:
522 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1);
523 break;
524 case ANTENNA_A:
525 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
526 break;
527 case ANTENNA_B:
528 default:
529 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
530 break;
531 }
532
533 /*
534 * RT2525E and RT5222 need to flip TX I/Q
535 */
536 if (rt2x00_rf(&rt2x00dev->chip, RF2525E) ||
537 rt2x00_rf(&rt2x00dev->chip, RF5222)) {
538 rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
539 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 1);
540 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 1);
541
542 /*
543 * RT2525E does not need RX I/Q Flip.
544 */
545 if (rt2x00_rf(&rt2x00dev->chip, RF2525E))
546 rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
547 } else {
548 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 0);
549 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 0);
550 }
551
552 rt2500usb_bbp_write(rt2x00dev, 2, r2);
553 rt2500usb_bbp_write(rt2x00dev, 14, r14);
554 rt2500usb_register_write(rt2x00dev, PHY_CSR5, csr5);
555 rt2500usb_register_write(rt2x00dev, PHY_CSR6, csr6);
556 }
557
558 static void rt2500usb_config_duration(struct rt2x00_dev *rt2x00dev,
559 struct rt2x00lib_conf *libconf)
560 {
561 u16 reg;
562
563 rt2500usb_register_write(rt2x00dev, MAC_CSR10, libconf->slot_time);
564 rt2500usb_register_write(rt2x00dev, MAC_CSR11, libconf->sifs);
565 rt2500usb_register_write(rt2x00dev, MAC_CSR12, libconf->eifs);
566
567 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
568 rt2x00_set_field16(&reg, TXRX_CSR18_INTERVAL,
569 libconf->conf->beacon_int * 4);
570 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
571 }
572
573 static void rt2500usb_config(struct rt2x00_dev *rt2x00dev,
574 struct rt2x00lib_conf *libconf,
575 const unsigned int flags)
576 {
577 if (flags & CONFIG_UPDATE_PHYMODE)
578 rt2500usb_config_phymode(rt2x00dev, libconf->basic_rates);
579 if (flags & CONFIG_UPDATE_CHANNEL)
580 rt2500usb_config_channel(rt2x00dev, &libconf->rf,
581 libconf->conf->power_level);
582 if ((flags & CONFIG_UPDATE_TXPOWER) && !(flags & CONFIG_UPDATE_CHANNEL))
583 rt2500usb_config_txpower(rt2x00dev,
584 libconf->conf->power_level);
585 if (flags & CONFIG_UPDATE_ANTENNA)
586 rt2500usb_config_antenna(rt2x00dev, &libconf->ant);
587 if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT))
588 rt2500usb_config_duration(rt2x00dev, libconf);
589 }
590
591 /*
592 * Link tuning
593 */
594 static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev,
595 struct link_qual *qual)
596 {
597 u16 reg;
598
599 /*
600 * Update FCS error count from register.
601 */
602 rt2500usb_register_read(rt2x00dev, STA_CSR0, &reg);
603 qual->rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR);
604
605 /*
606 * Update False CCA count from register.
607 */
608 rt2500usb_register_read(rt2x00dev, STA_CSR3, &reg);
609 qual->false_cca = rt2x00_get_field16(reg, STA_CSR3_FALSE_CCA_ERROR);
610 }
611
612 static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev)
613 {
614 u16 eeprom;
615 u16 value;
616
617 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &eeprom);
618 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R24_LOW);
619 rt2500usb_bbp_write(rt2x00dev, 24, value);
620
621 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &eeprom);
622 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R25_LOW);
623 rt2500usb_bbp_write(rt2x00dev, 25, value);
624
625 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &eeprom);
626 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R61_LOW);
627 rt2500usb_bbp_write(rt2x00dev, 61, value);
628
629 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &eeprom);
630 value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_VGCUPPER);
631 rt2500usb_bbp_write(rt2x00dev, 17, value);
632
633 rt2x00dev->link.vgc_level = value;
634 }
635
636 static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev)
637 {
638 int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
639 u16 bbp_thresh;
640 u16 vgc_bound;
641 u16 sens;
642 u16 r24;
643 u16 r25;
644 u16 r61;
645 u16 r17_sens;
646 u8 r17;
647 u8 up_bound;
648 u8 low_bound;
649
650 /*
651 * Read current r17 value, as well as the sensitivity values
652 * for the r17 register.
653 */
654 rt2500usb_bbp_read(rt2x00dev, 17, &r17);
655 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &r17_sens);
656
657 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &vgc_bound);
658 up_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCUPPER);
659 low_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCLOWER);
660
661 /*
662 * If we are not associated, we should go straight to the
663 * dynamic CCA tuning.
664 */
665 if (!rt2x00dev->intf_associated)
666 goto dynamic_cca_tune;
667
668 /*
669 * Determine the BBP tuning threshold and correctly
670 * set BBP 24, 25 and 61.
671 */
672 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &bbp_thresh);
673 bbp_thresh = rt2x00_get_field16(bbp_thresh, EEPROM_BBPTUNE_THRESHOLD);
674
675 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &r24);
676 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &r25);
677 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &r61);
678
679 if ((rssi + bbp_thresh) > 0) {
680 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_HIGH);
681 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_HIGH);
682 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_HIGH);
683 } else {
684 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_LOW);
685 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_LOW);
686 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_LOW);
687 }
688
689 rt2500usb_bbp_write(rt2x00dev, 24, r24);
690 rt2500usb_bbp_write(rt2x00dev, 25, r25);
691 rt2500usb_bbp_write(rt2x00dev, 61, r61);
692
693 /*
694 * A too low RSSI will cause too much false CCA which will
695 * then corrupt the R17 tuning. To remidy this the tuning should
696 * be stopped (While making sure the R17 value will not exceed limits)
697 */
698 if (rssi >= -40) {
699 if (r17 != 0x60)
700 rt2500usb_bbp_write(rt2x00dev, 17, 0x60);
701 return;
702 }
703
704 /*
705 * Special big-R17 for short distance
706 */
707 if (rssi >= -58) {
708 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_LOW);
709 if (r17 != sens)
710 rt2500usb_bbp_write(rt2x00dev, 17, sens);
711 return;
712 }
713
714 /*
715 * Special mid-R17 for middle distance
716 */
717 if (rssi >= -74) {
718 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_HIGH);
719 if (r17 != sens)
720 rt2500usb_bbp_write(rt2x00dev, 17, sens);
721 return;
722 }
723
724 /*
725 * Leave short or middle distance condition, restore r17
726 * to the dynamic tuning range.
727 */
728 low_bound = 0x32;
729 if (rssi < -77)
730 up_bound -= (-77 - rssi);
731
732 if (up_bound < low_bound)
733 up_bound = low_bound;
734
735 if (r17 > up_bound) {
736 rt2500usb_bbp_write(rt2x00dev, 17, up_bound);
737 rt2x00dev->link.vgc_level = up_bound;
738 return;
739 }
740
741 dynamic_cca_tune:
742
743 /*
744 * R17 is inside the dynamic tuning range,
745 * start tuning the link based on the false cca counter.
746 */
747 if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) {
748 rt2500usb_bbp_write(rt2x00dev, 17, ++r17);
749 rt2x00dev->link.vgc_level = r17;
750 } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) {
751 rt2500usb_bbp_write(rt2x00dev, 17, --r17);
752 rt2x00dev->link.vgc_level = r17;
753 }
754 }
755
756 /*
757 * Initialization functions.
758 */
759 static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
760 {
761 u16 reg;
762
763 rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
764 USB_MODE_TEST, REGISTER_TIMEOUT);
765 rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
766 0x00f0, REGISTER_TIMEOUT);
767
768 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
769 rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX, 1);
770 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
771
772 rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
773 rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
774
775 rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
776 rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 1);
777 rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 1);
778 rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
779 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
780
781 rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
782 rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
783 rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
784 rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
785 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
786
787 rt2500usb_register_read(rt2x00dev, TXRX_CSR5, &reg);
788 rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0, 13);
789 rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0_VALID, 1);
790 rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1, 12);
791 rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1_VALID, 1);
792 rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);
793
794 rt2500usb_register_read(rt2x00dev, TXRX_CSR6, &reg);
795 rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0, 10);
796 rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0_VALID, 1);
797 rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1, 11);
798 rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1_VALID, 1);
799 rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);
800
801 rt2500usb_register_read(rt2x00dev, TXRX_CSR7, &reg);
802 rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0, 7);
803 rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0_VALID, 1);
804 rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1, 6);
805 rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1_VALID, 1);
806 rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);
807
808 rt2500usb_register_read(rt2x00dev, TXRX_CSR8, &reg);
809 rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0, 5);
810 rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0_VALID, 1);
811 rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1, 0);
812 rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1_VALID, 0);
813 rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);
814
815 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
816 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 0);
817 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, 0);
818 rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 0);
819 rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
820 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
821
822 rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
823 rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
824
825 if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
826 return -EBUSY;
827
828 rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
829 rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
830 rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
831 rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 1);
832 rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
833
834 if (rt2x00_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
835 rt2500usb_register_read(rt2x00dev, PHY_CSR2, &reg);
836 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 0);
837 } else {
838 reg = 0;
839 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 1);
840 rt2x00_set_field16(&reg, PHY_CSR2_LNA_MODE, 3);
841 }
842 rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
843
844 rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
845 rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
846 rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
847 rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
848
849 rt2500usb_register_read(rt2x00dev, MAC_CSR8, &reg);
850 rt2x00_set_field16(&reg, MAC_CSR8_MAX_FRAME_UNIT,
851 rt2x00dev->rx->data_size);
852 rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
853
854 rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
855 rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
856 rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, 0xff);
857 rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
858
859 rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
860 rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON, 90);
861 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
862
863 rt2500usb_register_read(rt2x00dev, PHY_CSR4, &reg);
864 rt2x00_set_field16(&reg, PHY_CSR4_LOW_RF_LE, 1);
865 rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);
866
867 rt2500usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
868 rt2x00_set_field16(&reg, TXRX_CSR1_AUTO_SEQUENCE, 1);
869 rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
870
871 return 0;
872 }
873
874 static int rt2500usb_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
875 {
876 unsigned int i;
877 u8 value;
878
879 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
880 rt2500usb_bbp_read(rt2x00dev, 0, &value);
881 if ((value != 0xff) && (value != 0x00))
882 return 0;
883 udelay(REGISTER_BUSY_DELAY);
884 }
885
886 ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
887 return -EACCES;
888 }
889
890 static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
891 {
892 unsigned int i;
893 u16 eeprom;
894 u8 value;
895 u8 reg_id;
896
897 if (unlikely(rt2500usb_wait_bbp_ready(rt2x00dev)))
898 return -EACCES;
899
900 rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
901 rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
902 rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
903 rt2500usb_bbp_write(rt2x00dev, 15, 0x30);
904 rt2500usb_bbp_write(rt2x00dev, 16, 0xac);
905 rt2500usb_bbp_write(rt2x00dev, 18, 0x18);
906 rt2500usb_bbp_write(rt2x00dev, 19, 0xff);
907 rt2500usb_bbp_write(rt2x00dev, 20, 0x1e);
908 rt2500usb_bbp_write(rt2x00dev, 21, 0x08);
909 rt2500usb_bbp_write(rt2x00dev, 22, 0x08);
910 rt2500usb_bbp_write(rt2x00dev, 23, 0x08);
911 rt2500usb_bbp_write(rt2x00dev, 24, 0x80);
912 rt2500usb_bbp_write(rt2x00dev, 25, 0x50);
913 rt2500usb_bbp_write(rt2x00dev, 26, 0x08);
914 rt2500usb_bbp_write(rt2x00dev, 27, 0x23);
915 rt2500usb_bbp_write(rt2x00dev, 30, 0x10);
916 rt2500usb_bbp_write(rt2x00dev, 31, 0x2b);
917 rt2500usb_bbp_write(rt2x00dev, 32, 0xb9);
918 rt2500usb_bbp_write(rt2x00dev, 34, 0x12);
919 rt2500usb_bbp_write(rt2x00dev, 35, 0x50);
920 rt2500usb_bbp_write(rt2x00dev, 39, 0xc4);
921 rt2500usb_bbp_write(rt2x00dev, 40, 0x02);
922 rt2500usb_bbp_write(rt2x00dev, 41, 0x60);
923 rt2500usb_bbp_write(rt2x00dev, 53, 0x10);
924 rt2500usb_bbp_write(rt2x00dev, 54, 0x18);
925 rt2500usb_bbp_write(rt2x00dev, 56, 0x08);
926 rt2500usb_bbp_write(rt2x00dev, 57, 0x10);
927 rt2500usb_bbp_write(rt2x00dev, 58, 0x08);
928 rt2500usb_bbp_write(rt2x00dev, 61, 0x60);
929 rt2500usb_bbp_write(rt2x00dev, 62, 0x10);
930 rt2500usb_bbp_write(rt2x00dev, 75, 0xff);
931
932 for (i = 0; i < EEPROM_BBP_SIZE; i++) {
933 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
934
935 if (eeprom != 0xffff && eeprom != 0x0000) {
936 reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
937 value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
938 rt2500usb_bbp_write(rt2x00dev, reg_id, value);
939 }
940 }
941
942 return 0;
943 }
944
945 /*
946 * Device state switch handlers.
947 */
948 static void rt2500usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
949 enum dev_state state)
950 {
951 u16 reg;
952
953 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
954 rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX,
955 (state == STATE_RADIO_RX_OFF) ||
956 (state == STATE_RADIO_RX_OFF_LINK));
957 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
958 }
959
960 static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
961 {
962 /*
963 * Initialize all registers.
964 */
965 if (unlikely(rt2500usb_init_registers(rt2x00dev) ||
966 rt2500usb_init_bbp(rt2x00dev)))
967 return -EIO;
968
969 return 0;
970 }
971
972 static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev)
973 {
974 rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121);
975 rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
976
977 /*
978 * Disable synchronisation.
979 */
980 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
981
982 rt2x00usb_disable_radio(rt2x00dev);
983 }
984
985 static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
986 enum dev_state state)
987 {
988 u16 reg;
989 u16 reg2;
990 unsigned int i;
991 char put_to_sleep;
992 char bbp_state;
993 char rf_state;
994
995 put_to_sleep = (state != STATE_AWAKE);
996
997 reg = 0;
998 rt2x00_set_field16(&reg, MAC_CSR17_BBP_DESIRE_STATE, state);
999 rt2x00_set_field16(&reg, MAC_CSR17_RF_DESIRE_STATE, state);
1000 rt2x00_set_field16(&reg, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep);
1001 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1002 rt2x00_set_field16(&reg, MAC_CSR17_SET_STATE, 1);
1003 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1004
1005 /*
1006 * Device is not guaranteed to be in the requested state yet.
1007 * We must wait until the register indicates that the
1008 * device has entered the correct state.
1009 */
1010 for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1011 rt2500usb_register_read(rt2x00dev, MAC_CSR17, &reg2);
1012 bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE);
1013 rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE);
1014 if (bbp_state == state && rf_state == state)
1015 return 0;
1016 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1017 msleep(30);
1018 }
1019
1020 return -EBUSY;
1021 }
1022
1023 static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
1024 enum dev_state state)
1025 {
1026 int retval = 0;
1027
1028 switch (state) {
1029 case STATE_RADIO_ON:
1030 retval = rt2500usb_enable_radio(rt2x00dev);
1031 break;
1032 case STATE_RADIO_OFF:
1033 rt2500usb_disable_radio(rt2x00dev);
1034 break;
1035 case STATE_RADIO_RX_ON:
1036 case STATE_RADIO_RX_ON_LINK:
1037 case STATE_RADIO_RX_OFF:
1038 case STATE_RADIO_RX_OFF_LINK:
1039 rt2500usb_toggle_rx(rt2x00dev, state);
1040 break;
1041 case STATE_RADIO_IRQ_ON:
1042 case STATE_RADIO_IRQ_OFF:
1043 /* No support, but no error either */
1044 break;
1045 case STATE_DEEP_SLEEP:
1046 case STATE_SLEEP:
1047 case STATE_STANDBY:
1048 case STATE_AWAKE:
1049 retval = rt2500usb_set_state(rt2x00dev, state);
1050 break;
1051 default:
1052 retval = -ENOTSUPP;
1053 break;
1054 }
1055
1056 if (unlikely(retval))
1057 ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
1058 state, retval);
1059
1060 return retval;
1061 }
1062
1063 /*
1064 * TX descriptor initialization
1065 */
1066 static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1067 struct sk_buff *skb,
1068 struct txentry_desc *txdesc)
1069 {
1070 struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
1071 __le32 *txd = skbdesc->desc;
1072 u32 word;
1073
1074 /*
1075 * Start writing the descriptor words.
1076 */
1077 rt2x00_desc_read(txd, 1, &word);
1078 rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
1079 rt2x00_set_field32(&word, TXD_W1_AIFS, txdesc->aifs);
1080 rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
1081 rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
1082 rt2x00_desc_write(txd, 1, word);
1083
1084 rt2x00_desc_read(txd, 2, &word);
1085 rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1086 rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1087 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1088 rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1089 rt2x00_desc_write(txd, 2, word);
1090
1091 rt2x00_desc_read(txd, 0, &word);
1092 rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, txdesc->retry_limit);
1093 rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1094 test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1095 rt2x00_set_field32(&word, TXD_W0_ACK,
1096 test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1097 rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1098 test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1099 rt2x00_set_field32(&word, TXD_W0_OFDM,
1100 test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags));
1101 rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
1102 test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags));
1103 rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
1104 rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT,
1105 skb->len - skbdesc->desc_len);
1106 rt2x00_set_field32(&word, TXD_W0_CIPHER, CIPHER_NONE);
1107 rt2x00_desc_write(txd, 0, word);
1108 }
1109
1110 /*
1111 * TX data initialization
1112 */
1113 static void rt2500usb_beacondone(struct urb *urb);
1114
1115 static void rt2500usb_write_beacon(struct queue_entry *entry)
1116 {
1117 struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1118 struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev);
1119 struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1120 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1121 int pipe = usb_sndbulkpipe(usb_dev, 1);
1122 int length;
1123 u16 reg;
1124
1125 /*
1126 * Add the descriptor in front of the skb.
1127 */
1128 skb_push(entry->skb, entry->queue->desc_size);
1129 memcpy(entry->skb->data, skbdesc->desc, skbdesc->desc_len);
1130 skbdesc->desc = entry->skb->data;
1131
1132 /*
1133 * Disable beaconing while we are reloading the beacon data,
1134 * otherwise we might be sending out invalid data.
1135 */
1136 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
1137 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 0);
1138 rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 0);
1139 rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
1140 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1141
1142 /*
1143 * USB devices cannot blindly pass the skb->len as the
1144 * length of the data to usb_fill_bulk_urb. Pass the skb
1145 * to the driver to determine what the length should be.
1146 */
1147 length = rt2x00dev->ops->lib->get_tx_data_len(rt2x00dev, entry->skb);
1148
1149 usb_fill_bulk_urb(bcn_priv->urb, usb_dev, pipe,
1150 entry->skb->data, length, rt2500usb_beacondone,
1151 entry);
1152
1153 /*
1154 * Second we need to create the guardian byte.
1155 * We only need a single byte, so lets recycle
1156 * the 'flags' field we are not using for beacons.
1157 */
1158 bcn_priv->guardian_data = 0;
1159 usb_fill_bulk_urb(bcn_priv->guardian_urb, usb_dev, pipe,
1160 &bcn_priv->guardian_data, 1, rt2500usb_beacondone,
1161 entry);
1162
1163 /*
1164 * Send out the guardian byte.
1165 */
1166 usb_submit_urb(bcn_priv->guardian_urb, GFP_ATOMIC);
1167 }
1168
1169 static int rt2500usb_get_tx_data_len(struct rt2x00_dev *rt2x00dev,
1170 struct sk_buff *skb)
1171 {
1172 int length;
1173
1174 /*
1175 * The length _must_ be a multiple of 2,
1176 * but it must _not_ be a multiple of the USB packet size.
1177 */
1178 length = roundup(skb->len, 2);
1179 length += (2 * !(length % rt2x00dev->usb_maxpacket));
1180
1181 return length;
1182 }
1183
1184 static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1185 const enum data_queue_qid queue)
1186 {
1187 u16 reg;
1188
1189 if (queue != QID_BEACON) {
1190 rt2x00usb_kick_tx_queue(rt2x00dev, queue);
1191 return;
1192 }
1193
1194 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
1195 if (!rt2x00_get_field16(reg, TXRX_CSR19_BEACON_GEN)) {
1196 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
1197 rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
1198 rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 1);
1199 /*
1200 * Beacon generation will fail initially.
1201 * To prevent this we need to register the TXRX_CSR19
1202 * register several times.
1203 */
1204 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1205 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1206 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1207 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1208 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1209 }
1210 }
1211
1212 /*
1213 * RX control handlers
1214 */
1215 static void rt2500usb_fill_rxdone(struct queue_entry *entry,
1216 struct rxdone_entry_desc *rxdesc)
1217 {
1218 struct queue_entry_priv_usb *entry_priv = entry->priv_data;
1219 struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1220 __le32 *rxd =
1221 (__le32 *)(entry->skb->data +
1222 (entry_priv->urb->actual_length -
1223 entry->queue->desc_size));
1224 u32 word0;
1225 u32 word1;
1226
1227 /*
1228 * Copy descriptor to the skbdesc->desc buffer, making it safe from moving of
1229 * frame data in rt2x00usb.
1230 */
1231 memcpy(skbdesc->desc, rxd, skbdesc->desc_len);
1232 rxd = (__le32 *)skbdesc->desc;
1233
1234 /*
1235 * It is now safe to read the descriptor on all architectures.
1236 */
1237 rt2x00_desc_read(rxd, 0, &word0);
1238 rt2x00_desc_read(rxd, 1, &word1);
1239
1240 if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1241 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1242 if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1243 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1244
1245 /*
1246 * Obtain the status about this packet.
1247 * When frame was received with an OFDM bitrate,
1248 * the signal is the PLCP value. If it was received with
1249 * a CCK bitrate the signal is the rate in 100kbit/s.
1250 */
1251 rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1252 rxdesc->rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) -
1253 entry->queue->rt2x00dev->rssi_offset;
1254 rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1255
1256 if (rt2x00_get_field32(word0, RXD_W0_OFDM))
1257 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
1258 if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
1259 rxdesc->dev_flags |= RXDONE_MY_BSS;
1260
1261 /*
1262 * Adjust the skb memory window to the frame boundaries.
1263 */
1264 skb_trim(entry->skb, rxdesc->size);
1265 }
1266
1267 /*
1268 * Interrupt functions.
1269 */
1270 static void rt2500usb_beacondone(struct urb *urb)
1271 {
1272 struct queue_entry *entry = (struct queue_entry *)urb->context;
1273 struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1274
1275 if (!test_bit(DEVICE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
1276 return;
1277
1278 /*
1279 * Check if this was the guardian beacon,
1280 * if that was the case we need to send the real beacon now.
1281 * Otherwise we should free the sk_buffer, the device
1282 * should be doing the rest of the work now.
1283 */
1284 if (bcn_priv->guardian_urb == urb) {
1285 usb_submit_urb(bcn_priv->urb, GFP_ATOMIC);
1286 } else if (bcn_priv->urb == urb) {
1287 dev_kfree_skb(entry->skb);
1288 entry->skb = NULL;
1289 }
1290 }
1291
1292 /*
1293 * Device probe functions.
1294 */
1295 static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1296 {
1297 u16 word;
1298 u8 *mac;
1299 u8 bbp;
1300
1301 rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1302
1303 /*
1304 * Start validation of the data that has been read.
1305 */
1306 mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1307 if (!is_valid_ether_addr(mac)) {
1308 DECLARE_MAC_BUF(macbuf);
1309
1310 random_ether_addr(mac);
1311 EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac));
1312 }
1313
1314 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1315 if (word == 0xffff) {
1316 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1317 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1318 ANTENNA_SW_DIVERSITY);
1319 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1320 ANTENNA_SW_DIVERSITY);
1321 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1322 LED_MODE_DEFAULT);
1323 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1324 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1325 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1326 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1327 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1328 }
1329
1330 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1331 if (word == 0xffff) {
1332 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1333 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1334 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1335 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1336 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1337 }
1338
1339 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1340 if (word == 0xffff) {
1341 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1342 DEFAULT_RSSI_OFFSET);
1343 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1344 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1345 }
1346
1347 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
1348 if (word == 0xffff) {
1349 rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
1350 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
1351 EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
1352 }
1353
1354 /*
1355 * Switch lower vgc bound to current BBP R17 value,
1356 * lower the value a bit for better quality.
1357 */
1358 rt2500usb_bbp_read(rt2x00dev, 17, &bbp);
1359 bbp -= 6;
1360
1361 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
1362 if (word == 0xffff) {
1363 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
1364 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1365 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1366 EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1367 }
1368
1369 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
1370 if (word == 0xffff) {
1371 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
1372 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
1373 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
1374 EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
1375 } else {
1376 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1377 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1378 }
1379
1380 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
1381 if (word == 0xffff) {
1382 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
1383 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
1384 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
1385 EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
1386 }
1387
1388 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
1389 if (word == 0xffff) {
1390 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
1391 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
1392 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
1393 EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
1394 }
1395
1396 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
1397 if (word == 0xffff) {
1398 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
1399 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
1400 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
1401 EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
1402 }
1403
1404 return 0;
1405 }
1406
1407 static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1408 {
1409 u16 reg;
1410 u16 value;
1411 u16 eeprom;
1412
1413 /*
1414 * Read EEPROM word for configuration.
1415 */
1416 rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1417
1418 /*
1419 * Identify RF chipset.
1420 */
1421 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1422 rt2500usb_register_read(rt2x00dev, MAC_CSR0, &reg);
1423 rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
1424
1425 if (!rt2x00_check_rev(&rt2x00dev->chip, 0)) {
1426 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1427 return -ENODEV;
1428 }
1429
1430 if (!rt2x00_rf(&rt2x00dev->chip, RF2522) &&
1431 !rt2x00_rf(&rt2x00dev->chip, RF2523) &&
1432 !rt2x00_rf(&rt2x00dev->chip, RF2524) &&
1433 !rt2x00_rf(&rt2x00dev->chip, RF2525) &&
1434 !rt2x00_rf(&rt2x00dev->chip, RF2525E) &&
1435 !rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1436 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1437 return -ENODEV;
1438 }
1439
1440 /*
1441 * Identify default antenna configuration.
1442 */
1443 rt2x00dev->default_ant.tx =
1444 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1445 rt2x00dev->default_ant.rx =
1446 rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1447
1448 /*
1449 * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1450 * I am not 100% sure about this, but the legacy drivers do not
1451 * indicate antenna swapping in software is required when
1452 * diversity is enabled.
1453 */
1454 if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
1455 rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
1456 if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
1457 rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
1458
1459 /*
1460 * Store led mode, for correct led behaviour.
1461 */
1462 #ifdef CONFIG_RT2500USB_LEDS
1463 value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1464
1465 rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
1466 if (value == LED_MODE_TXRX_ACTIVITY)
1467 rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_qual,
1468 LED_TYPE_ACTIVITY);
1469 #endif /* CONFIG_RT2500USB_LEDS */
1470
1471 /*
1472 * Check if the BBP tuning should be disabled.
1473 */
1474 rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1475 if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
1476 __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1477
1478 /*
1479 * Read the RSSI <-> dBm offset information.
1480 */
1481 rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1482 rt2x00dev->rssi_offset =
1483 rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1484
1485 return 0;
1486 }
1487
1488 /*
1489 * RF value list for RF2522
1490 * Supports: 2.4 GHz
1491 */
1492 static const struct rf_channel rf_vals_bg_2522[] = {
1493 { 1, 0x00002050, 0x000c1fda, 0x00000101, 0 },
1494 { 2, 0x00002050, 0x000c1fee, 0x00000101, 0 },
1495 { 3, 0x00002050, 0x000c2002, 0x00000101, 0 },
1496 { 4, 0x00002050, 0x000c2016, 0x00000101, 0 },
1497 { 5, 0x00002050, 0x000c202a, 0x00000101, 0 },
1498 { 6, 0x00002050, 0x000c203e, 0x00000101, 0 },
1499 { 7, 0x00002050, 0x000c2052, 0x00000101, 0 },
1500 { 8, 0x00002050, 0x000c2066, 0x00000101, 0 },
1501 { 9, 0x00002050, 0x000c207a, 0x00000101, 0 },
1502 { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1503 { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1504 { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1505 { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1506 { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1507 };
1508
1509 /*
1510 * RF value list for RF2523
1511 * Supports: 2.4 GHz
1512 */
1513 static const struct rf_channel rf_vals_bg_2523[] = {
1514 { 1, 0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1515 { 2, 0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1516 { 3, 0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1517 { 4, 0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1518 { 5, 0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1519 { 6, 0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1520 { 7, 0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1521 { 8, 0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1522 { 9, 0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1523 { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1524 { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1525 { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1526 { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1527 { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1528 };
1529
1530 /*
1531 * RF value list for RF2524
1532 * Supports: 2.4 GHz
1533 */
1534 static const struct rf_channel rf_vals_bg_2524[] = {
1535 { 1, 0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1536 { 2, 0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1537 { 3, 0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1538 { 4, 0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1539 { 5, 0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1540 { 6, 0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1541 { 7, 0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1542 { 8, 0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1543 { 9, 0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1544 { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1545 { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1546 { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1547 { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1548 { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1549 };
1550
1551 /*
1552 * RF value list for RF2525
1553 * Supports: 2.4 GHz
1554 */
1555 static const struct rf_channel rf_vals_bg_2525[] = {
1556 { 1, 0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1557 { 2, 0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1558 { 3, 0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1559 { 4, 0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1560 { 5, 0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1561 { 6, 0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1562 { 7, 0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1563 { 8, 0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1564 { 9, 0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1565 { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1566 { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1567 { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1568 { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1569 { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1570 };
1571
1572 /*
1573 * RF value list for RF2525e
1574 * Supports: 2.4 GHz
1575 */
1576 static const struct rf_channel rf_vals_bg_2525e[] = {
1577 { 1, 0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1578 { 2, 0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1579 { 3, 0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1580 { 4, 0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1581 { 5, 0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1582 { 6, 0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1583 { 7, 0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1584 { 8, 0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1585 { 9, 0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1586 { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1587 { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1588 { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1589 { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1590 { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1591 };
1592
1593 /*
1594 * RF value list for RF5222
1595 * Supports: 2.4 GHz & 5.2 GHz
1596 */
1597 static const struct rf_channel rf_vals_5222[] = {
1598 { 1, 0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1599 { 2, 0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1600 { 3, 0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1601 { 4, 0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1602 { 5, 0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1603 { 6, 0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1604 { 7, 0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1605 { 8, 0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1606 { 9, 0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1607 { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1608 { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1609 { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1610 { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1611 { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1612
1613 /* 802.11 UNI / HyperLan 2 */
1614 { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1615 { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1616 { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1617 { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1618 { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1619 { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1620 { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1621 { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1622
1623 /* 802.11 HyperLan 2 */
1624 { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1625 { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1626 { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1627 { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1628 { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1629 { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1630 { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1631 { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1632 { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1633 { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1634
1635 /* 802.11 UNII */
1636 { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1637 { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1638 { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1639 { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1640 { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1641 };
1642
1643 static void rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1644 {
1645 struct hw_mode_spec *spec = &rt2x00dev->spec;
1646 u8 *txpower;
1647 unsigned int i;
1648
1649 /*
1650 * Initialize all hw fields.
1651 */
1652 rt2x00dev->hw->flags =
1653 IEEE80211_HW_RX_INCLUDES_FCS |
1654 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1655 IEEE80211_HW_SIGNAL_DBM;
1656
1657 rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
1658
1659 SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
1660 SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1661 rt2x00_eeprom_addr(rt2x00dev,
1662 EEPROM_MAC_ADDR_0));
1663
1664 /*
1665 * Convert tx_power array in eeprom.
1666 */
1667 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1668 for (i = 0; i < 14; i++)
1669 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1670
1671 /*
1672 * Initialize hw_mode information.
1673 */
1674 spec->supported_bands = SUPPORT_BAND_2GHZ;
1675 spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
1676 spec->tx_power_a = NULL;
1677 spec->tx_power_bg = txpower;
1678 spec->tx_power_default = DEFAULT_TXPOWER;
1679
1680 if (rt2x00_rf(&rt2x00dev->chip, RF2522)) {
1681 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1682 spec->channels = rf_vals_bg_2522;
1683 } else if (rt2x00_rf(&rt2x00dev->chip, RF2523)) {
1684 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1685 spec->channels = rf_vals_bg_2523;
1686 } else if (rt2x00_rf(&rt2x00dev->chip, RF2524)) {
1687 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1688 spec->channels = rf_vals_bg_2524;
1689 } else if (rt2x00_rf(&rt2x00dev->chip, RF2525)) {
1690 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1691 spec->channels = rf_vals_bg_2525;
1692 } else if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
1693 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1694 spec->channels = rf_vals_bg_2525e;
1695 } else if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1696 spec->supported_bands |= SUPPORT_BAND_5GHZ;
1697 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1698 spec->channels = rf_vals_5222;
1699 }
1700 }
1701
1702 static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1703 {
1704 int retval;
1705
1706 /*
1707 * Allocate eeprom data.
1708 */
1709 retval = rt2500usb_validate_eeprom(rt2x00dev);
1710 if (retval)
1711 return retval;
1712
1713 retval = rt2500usb_init_eeprom(rt2x00dev);
1714 if (retval)
1715 return retval;
1716
1717 /*
1718 * Initialize hw specifications.
1719 */
1720 rt2500usb_probe_hw_mode(rt2x00dev);
1721
1722 /*
1723 * This device requires the atim queue
1724 */
1725 __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
1726 __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
1727 __set_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags);
1728
1729 /*
1730 * Set the rssi offset.
1731 */
1732 rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1733
1734 return 0;
1735 }
1736
1737 static const struct ieee80211_ops rt2500usb_mac80211_ops = {
1738 .tx = rt2x00mac_tx,
1739 .start = rt2x00mac_start,
1740 .stop = rt2x00mac_stop,
1741 .add_interface = rt2x00mac_add_interface,
1742 .remove_interface = rt2x00mac_remove_interface,
1743 .config = rt2x00mac_config,
1744 .config_interface = rt2x00mac_config_interface,
1745 .configure_filter = rt2x00mac_configure_filter,
1746 .get_stats = rt2x00mac_get_stats,
1747 .bss_info_changed = rt2x00mac_bss_info_changed,
1748 .conf_tx = rt2x00mac_conf_tx,
1749 .get_tx_stats = rt2x00mac_get_tx_stats,
1750 };
1751
1752 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
1753 .probe_hw = rt2500usb_probe_hw,
1754 .initialize = rt2x00usb_initialize,
1755 .uninitialize = rt2x00usb_uninitialize,
1756 .init_rxentry = rt2x00usb_init_rxentry,
1757 .init_txentry = rt2x00usb_init_txentry,
1758 .set_device_state = rt2500usb_set_device_state,
1759 .link_stats = rt2500usb_link_stats,
1760 .reset_tuner = rt2500usb_reset_tuner,
1761 .link_tuner = rt2500usb_link_tuner,
1762 .write_tx_desc = rt2500usb_write_tx_desc,
1763 .write_tx_data = rt2x00usb_write_tx_data,
1764 .write_beacon = rt2500usb_write_beacon,
1765 .get_tx_data_len = rt2500usb_get_tx_data_len,
1766 .kick_tx_queue = rt2500usb_kick_tx_queue,
1767 .fill_rxdone = rt2500usb_fill_rxdone,
1768 .config_filter = rt2500usb_config_filter,
1769 .config_intf = rt2500usb_config_intf,
1770 .config_erp = rt2500usb_config_erp,
1771 .config = rt2500usb_config,
1772 };
1773
1774 static const struct data_queue_desc rt2500usb_queue_rx = {
1775 .entry_num = RX_ENTRIES,
1776 .data_size = DATA_FRAME_SIZE,
1777 .desc_size = RXD_DESC_SIZE,
1778 .priv_size = sizeof(struct queue_entry_priv_usb),
1779 };
1780
1781 static const struct data_queue_desc rt2500usb_queue_tx = {
1782 .entry_num = TX_ENTRIES,
1783 .data_size = DATA_FRAME_SIZE,
1784 .desc_size = TXD_DESC_SIZE,
1785 .priv_size = sizeof(struct queue_entry_priv_usb),
1786 };
1787
1788 static const struct data_queue_desc rt2500usb_queue_bcn = {
1789 .entry_num = BEACON_ENTRIES,
1790 .data_size = MGMT_FRAME_SIZE,
1791 .desc_size = TXD_DESC_SIZE,
1792 .priv_size = sizeof(struct queue_entry_priv_usb_bcn),
1793 };
1794
1795 static const struct data_queue_desc rt2500usb_queue_atim = {
1796 .entry_num = ATIM_ENTRIES,
1797 .data_size = DATA_FRAME_SIZE,
1798 .desc_size = TXD_DESC_SIZE,
1799 .priv_size = sizeof(struct queue_entry_priv_usb),
1800 };
1801
1802 static const struct rt2x00_ops rt2500usb_ops = {
1803 .name = KBUILD_MODNAME,
1804 .max_sta_intf = 1,
1805 .max_ap_intf = 1,
1806 .eeprom_size = EEPROM_SIZE,
1807 .rf_size = RF_SIZE,
1808 .tx_queues = NUM_TX_QUEUES,
1809 .rx = &rt2500usb_queue_rx,
1810 .tx = &rt2500usb_queue_tx,
1811 .bcn = &rt2500usb_queue_bcn,
1812 .atim = &rt2500usb_queue_atim,
1813 .lib = &rt2500usb_rt2x00_ops,
1814 .hw = &rt2500usb_mac80211_ops,
1815 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1816 .debugfs = &rt2500usb_rt2x00debug,
1817 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1818 };
1819
1820 /*
1821 * rt2500usb module information.
1822 */
1823 static struct usb_device_id rt2500usb_device_table[] = {
1824 /* ASUS */
1825 { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1826 { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
1827 /* Belkin */
1828 { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
1829 { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
1830 { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
1831 /* Cisco Systems */
1832 { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
1833 { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
1834 { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
1835 /* Conceptronic */
1836 { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
1837 /* D-LINK */
1838 { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
1839 /* Gigabyte */
1840 { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
1841 { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
1842 /* Hercules */
1843 { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
1844 /* Melco */
1845 { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) },
1846 { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
1847 { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
1848 { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
1849 { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
1850 /* MSI */
1851 { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
1852 { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
1853 { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
1854 /* Ralink */
1855 { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1856 { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
1857 { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
1858 { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1859 /* Siemens */
1860 { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
1861 /* SMC */
1862 { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
1863 /* Spairon */
1864 { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
1865 /* Trust */
1866 { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1867 /* Zinwell */
1868 { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
1869 { 0, }
1870 };
1871
1872 MODULE_AUTHOR(DRV_PROJECT);
1873 MODULE_VERSION(DRV_VERSION);
1874 MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
1875 MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
1876 MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
1877 MODULE_LICENSE("GPL");
1878
1879 static struct usb_driver rt2500usb_driver = {
1880 .name = KBUILD_MODNAME,
1881 .id_table = rt2500usb_device_table,
1882 .probe = rt2x00usb_probe,
1883 .disconnect = rt2x00usb_disconnect,
1884 .suspend = rt2x00usb_suspend,
1885 .resume = rt2x00usb_resume,
1886 };
1887
1888 static int __init rt2500usb_init(void)
1889 {
1890 return usb_register(&rt2500usb_driver);
1891 }
1892
1893 static void __exit rt2500usb_exit(void)
1894 {
1895 usb_deregister(&rt2500usb_driver);
1896 }
1897
1898 module_init(rt2500usb_init);
1899 module_exit(rt2500usb_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree