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drivers/net: Remove unnecessary returns from void function()s
[linux-2.6/kvm.git] / drivers / net / wireless / ray_cs.c
blob3886b21becd95a3f03eceb2f1bcbe54cab4f00a8
1 /*=============================================================================
2 *
3 * A PCMCIA client driver for the Raylink wireless LAN card.
4 * The starting point for this module was the skeleton.c in the
5 * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net
6 *
7 *
8 * Copyright (c) 1998 Corey Thomas (corey@world.std.com)
9 *
10 * This driver is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 only of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * It is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
22 *
23 * Changes:
24 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
25 * - reorganize kmallocs in ray_attach, checking all for failure
26 * and releasing the previous allocations if one fails
27 *
28 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003
29 * - Audit copy_to_user in ioctl(SIOCGIWESSID)
30 *
31 =============================================================================*/
32
33 #include <linux/module.h>
34 #include <linux/kernel.h>
35 #include <linux/proc_fs.h>
36 #include <linux/ptrace.h>
37 #include <linux/seq_file.h>
38 #include <linux/string.h>
39 #include <linux/timer.h>
40 #include <linux/init.h>
41 #include <linux/netdevice.h>
42 #include <linux/etherdevice.h>
43 #include <linux/if_arp.h>
44 #include <linux/ioport.h>
45 #include <linux/skbuff.h>
46 #include <linux/ethtool.h>
47 #include <linux/ieee80211.h>
48
49 #include <pcmcia/cs_types.h>
50 #include <pcmcia/cs.h>
51 #include <pcmcia/cistpl.h>
52 #include <pcmcia/cisreg.h>
53 #include <pcmcia/ds.h>
54 #include <pcmcia/mem_op.h>
55
56 #include <linux/wireless.h>
57 #include <net/iw_handler.h>
58
59 #include <asm/io.h>
60 #include <asm/system.h>
61 #include <asm/byteorder.h>
62 #include <asm/uaccess.h>
63
64 /* Warning : these stuff will slow down the driver... */
65 #define WIRELESS_SPY /* Enable spying addresses */
66 /* Definitions we need for spy */
67 typedef struct iw_statistics iw_stats;
68 typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */
69
70 #include "rayctl.h"
71 #include "ray_cs.h"
72
73
74 /** Prototypes based on PCMCIA skeleton driver *******************************/
75 static int ray_config(struct pcmcia_device *link);
76 static void ray_release(struct pcmcia_device *link);
77 static void ray_detach(struct pcmcia_device *p_dev);
78
79 /***** Prototypes indicated by device structure ******************************/
80 static int ray_dev_close(struct net_device *dev);
81 static int ray_dev_config(struct net_device *dev, struct ifmap *map);
82 static struct net_device_stats *ray_get_stats(struct net_device *dev);
83 static int ray_dev_init(struct net_device *dev);
84
85 static const struct ethtool_ops netdev_ethtool_ops;
86
87 static int ray_open(struct net_device *dev);
88 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
89 struct net_device *dev);
90 static void set_multicast_list(struct net_device *dev);
91 static void ray_update_multi_list(struct net_device *dev, int all);
92 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
93 unsigned char *data, int len);
94 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
95 UCHAR msg_type, unsigned char *data);
96 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
97 static iw_stats *ray_get_wireless_stats(struct net_device *dev);
98 static const struct iw_handler_def ray_handler_def;
99
100 /***** Prototypes for raylink functions **************************************/
101 static int asc_to_int(char a);
102 static void authenticate(ray_dev_t *local);
103 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
104 static void authenticate_timeout(u_long);
105 static int get_free_ccs(ray_dev_t *local);
106 static int get_free_tx_ccs(ray_dev_t *local);
107 static void init_startup_params(ray_dev_t *local);
108 static int parse_addr(char *in_str, UCHAR *out);
109 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type);
110 static int ray_init(struct net_device *dev);
111 static int interrupt_ecf(ray_dev_t *local, int ccs);
112 static void ray_reset(struct net_device *dev);
113 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
114 static void verify_dl_startup(u_long);
115
116 /* Prototypes for interrpt time functions **********************************/
117 static irqreturn_t ray_interrupt(int reg, void *dev_id);
118 static void clear_interrupt(ray_dev_t *local);
119 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
120 unsigned int pkt_addr, int rx_len);
121 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
122 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
123 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
124 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
125 unsigned int pkt_addr, int rx_len);
126 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
127 unsigned int pkt_addr, int rx_len);
128 static void associate(ray_dev_t *local);
129
130 /* Card command functions */
131 static int dl_startup_params(struct net_device *dev);
132 static void join_net(u_long local);
133 static void start_net(u_long local);
134 /* void start_net(ray_dev_t *local); */
135
136 /*===========================================================================*/
137 /* Parameters that can be set with 'insmod' */
138
139 /* ADHOC=0, Infrastructure=1 */
140 static int net_type = ADHOC;
141
142 /* Hop dwell time in Kus (1024 us units defined by 802.11) */
143 static int hop_dwell = 128;
144
145 /* Beacon period in Kus */
146 static int beacon_period = 256;
147
148 /* power save mode (0 = off, 1 = save power) */
149 static int psm;
150
151 /* String for network's Extended Service Set ID. 32 Characters max */
152 static char *essid;
153
154 /* Default to encapsulation unless translation requested */
155 static int translate = 1;
156
157 static int country = USA;
158
159 static int sniffer;
160
161 static int bc;
162
163 /* 48 bit physical card address if overriding card's real physical
164 * address is required. Since IEEE 802.11 addresses are 48 bits
165 * like ethernet, an int can't be used, so a string is used. To
166 * allow use of addresses starting with a decimal digit, the first
167 * character must be a letter and will be ignored. This letter is
168 * followed by up to 12 hex digits which are the address. If less
169 * than 12 digits are used, the address will be left filled with 0's.
170 * Note that bit 0 of the first byte is the broadcast bit, and evil
171 * things will happen if it is not 0 in a card address.
172 */
173 static char *phy_addr = NULL;
174
175
176 /* A struct pcmcia_device structure has fields for most things that are needed
177 to keep track of a socket, but there will usually be some device
178 specific information that also needs to be kept track of. The
179 'priv' pointer in a struct pcmcia_device structure can be used to point to
180 a device-specific private data structure, like this.
181 */
182 static unsigned int ray_mem_speed = 500;
183
184 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
185 static struct pcmcia_device *this_device = NULL;
186
187 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
188 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
189 MODULE_LICENSE("GPL");
190
191 module_param(net_type, int, 0);
192 module_param(hop_dwell, int, 0);
193 module_param(beacon_period, int, 0);
194 module_param(psm, int, 0);
195 module_param(essid, charp, 0);
196 module_param(translate, int, 0);
197 module_param(country, int, 0);
198 module_param(sniffer, int, 0);
199 module_param(bc, int, 0);
200 module_param(phy_addr, charp, 0);
201 module_param(ray_mem_speed, int, 0);
202
203 static UCHAR b5_default_startup_parms[] = {
204 0, 0, /* Adhoc station */
205 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
206 0, 0, 0, 0, 0, 0, 0, 0,
207 0, 0, 0, 0, 0, 0, 0, 0,
208 0, 0, 0, 0, 0, 0, 0, 0,
209 1, 0, /* Active scan, CA Mode */
210 0, 0, 0, 0, 0, 0, /* No default MAC addr */
211 0x7f, 0xff, /* Frag threshold */
212 0x00, 0x80, /* Hop time 128 Kus */
213 0x01, 0x00, /* Beacon period 256 Kus */
214 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
215 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */
216 0x7f, 0xff, /* RTS threshold */
217 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
218 0x05, /* assoc resp timeout thresh */
219 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */
220 0, /* Promiscuous mode */
221 0x0c, 0x0bd, /* Unique word */
222 0x32, /* Slot time */
223 0xff, 0xff, /* roam-low snr, low snr count */
224 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
225 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */
226 /* b4 - b5 differences start here */
227 0x00, 0x3f, /* CW max */
228 0x00, 0x0f, /* CW min */
229 0x04, 0x08, /* Noise gain, limit offset */
230 0x28, 0x28, /* det rssi, med busy offsets */
231 7, /* det sync thresh */
232 0, 2, 2, /* test mode, min, max */
233 0, /* allow broadcast SSID probe resp */
234 0, 0, /* privacy must start, can join */
235 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */
236 };
237
238 static UCHAR b4_default_startup_parms[] = {
239 0, 0, /* Adhoc station */
240 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
241 0, 0, 0, 0, 0, 0, 0, 0,
242 0, 0, 0, 0, 0, 0, 0, 0,
243 0, 0, 0, 0, 0, 0, 0, 0,
244 1, 0, /* Active scan, CA Mode */
245 0, 0, 0, 0, 0, 0, /* No default MAC addr */
246 0x7f, 0xff, /* Frag threshold */
247 0x02, 0x00, /* Hop time */
248 0x00, 0x01, /* Beacon period */
249 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
250 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */
251 0x7f, 0xff, /* RTS threshold */
252 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
253 0x05, /* assoc resp timeout thresh */
254 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */
255 0, /* Promiscuous mode */
256 0x0c, 0x0bd, /* Unique word */
257 0x4e, /* Slot time (TBD seems wrong) */
258 0xff, 0xff, /* roam-low snr, low snr count */
259 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
260 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */
261 /* b4 - b5 differences start here */
262 0x3f, 0x0f, /* CW max, min */
263 0x04, 0x08, /* Noise gain, limit offset */
264 0x28, 0x28, /* det rssi, med busy offsets */
265 7, /* det sync thresh */
266 0, 2, 2 /* test mode, min, max */
267 };
268
269 /*===========================================================================*/
270 static unsigned char eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 };
271
272 static char hop_pattern_length[] = { 1,
273 USA_HOP_MOD, EUROPE_HOP_MOD,
274 JAPAN_HOP_MOD, KOREA_HOP_MOD,
275 SPAIN_HOP_MOD, FRANCE_HOP_MOD,
276 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
277 JAPAN_TEST_HOP_MOD
278 };
279
280 static char rcsid[] =
281 "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
282
283 static const struct net_device_ops ray_netdev_ops = {
284 .ndo_init = ray_dev_init,
285 .ndo_open = ray_open,
286 .ndo_stop = ray_dev_close,
287 .ndo_start_xmit = ray_dev_start_xmit,
288 .ndo_set_config = ray_dev_config,
289 .ndo_get_stats = ray_get_stats,
290 .ndo_set_multicast_list = set_multicast_list,
291 .ndo_change_mtu = eth_change_mtu,
292 .ndo_set_mac_address = eth_mac_addr,
293 .ndo_validate_addr = eth_validate_addr,
294 };
295
296 /*=============================================================================
297 ray_attach() creates an "instance" of the driver, allocating
298 local data structures for one device. The device is registered
299 with Card Services.
300 The dev_link structure is initialized, but we don't actually
301 configure the card at this point -- we wait until we receive a
302 card insertion event.
303 =============================================================================*/
304 static int ray_probe(struct pcmcia_device *p_dev)
305 {
306 ray_dev_t *local;
307 struct net_device *dev;
308
309 dev_dbg(&p_dev->dev, "ray_attach()\n");
310
311 /* Allocate space for private device-specific data */
312 dev = alloc_etherdev(sizeof(ray_dev_t));
313 if (!dev)
314 goto fail_alloc_dev;
315
316 local = netdev_priv(dev);
317 local->finder = p_dev;
318
319 /* The io structure describes IO port mapping. None used here */
320 p_dev->io.NumPorts1 = 0;
321 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
322 p_dev->io.IOAddrLines = 5;
323
324 /* Interrupt setup. For PCMCIA, driver takes what's given */
325 p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
326 p_dev->irq.Handler = &ray_interrupt;
327
328 /* General socket configuration */
329 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
330 p_dev->conf.IntType = INT_MEMORY_AND_IO;
331 p_dev->conf.ConfigIndex = 1;
332
333 p_dev->priv = dev;
334
335 local->finder = p_dev;
336 local->card_status = CARD_INSERTED;
337 local->authentication_state = UNAUTHENTICATED;
338 local->num_multi = 0;
339 dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n",
340 p_dev, dev, local, &ray_interrupt);
341
342 /* Raylink entries in the device structure */
343 dev->netdev_ops = &ray_netdev_ops;
344 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
345 dev->wireless_handlers = &ray_handler_def;
346 #ifdef WIRELESS_SPY
347 local->wireless_data.spy_data = &local->spy_data;
348 dev->wireless_data = &local->wireless_data;
349 #endif /* WIRELESS_SPY */
350
351
352 dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n");
353 netif_stop_queue(dev);
354
355 init_timer(&local->timer);
356
357 this_device = p_dev;
358 return ray_config(p_dev);
359
360 fail_alloc_dev:
361 return -ENOMEM;
362 } /* ray_attach */
363
364 /*=============================================================================
365 This deletes a driver "instance". The device is de-registered
366 with Card Services. If it has been released, all local data
367 structures are freed. Otherwise, the structures will be freed
368 when the device is released.
369 =============================================================================*/
370 static void ray_detach(struct pcmcia_device *link)
371 {
372 struct net_device *dev;
373 ray_dev_t *local;
374
375 dev_dbg(&link->dev, "ray_detach\n");
376
377 this_device = NULL;
378 dev = link->priv;
379
380 ray_release(link);
381
382 local = netdev_priv(dev);
383 del_timer(&local->timer);
384
385 if (link->priv) {
386 if (link->dev_node)
387 unregister_netdev(dev);
388 free_netdev(dev);
389 }
390 dev_dbg(&link->dev, "ray_cs ray_detach ending\n");
391 } /* ray_detach */
392
393 /*=============================================================================
394 ray_config() is run after a CARD_INSERTION event
395 is received, to configure the PCMCIA socket, and to make the
396 ethernet device available to the system.
397 =============================================================================*/
398 #define MAX_TUPLE_SIZE 128
399 static int ray_config(struct pcmcia_device *link)
400 {
401 int ret = 0;
402 int i;
403 win_req_t req;
404 memreq_t mem;
405 struct net_device *dev = (struct net_device *)link->priv;
406 ray_dev_t *local = netdev_priv(dev);
407
408 dev_dbg(&link->dev, "ray_config\n");
409
410 /* Determine card type and firmware version */
411 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n",
412 link->prod_id[0] ? link->prod_id[0] : " ",
413 link->prod_id[1] ? link->prod_id[1] : " ",
414 link->prod_id[2] ? link->prod_id[2] : " ",
415 link->prod_id[3] ? link->prod_id[3] : " ");
416
417 /* Now allocate an interrupt line. Note that this does not
418 actually assign a handler to the interrupt.
419 */
420 ret = pcmcia_request_irq(link, &link->irq);
421 if (ret)
422 goto failed;
423 dev->irq = link->irq.AssignedIRQ;
424
425 /* This actually configures the PCMCIA socket -- setting up
426 the I/O windows and the interrupt mapping.
427 */
428 ret = pcmcia_request_configuration(link, &link->conf);
429 if (ret)
430 goto failed;
431
432 /*** Set up 32k window for shared memory (transmit and control) ************/
433 req.Attributes =
434 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
435 req.Base = 0;
436 req.Size = 0x8000;
437 req.AccessSpeed = ray_mem_speed;
438 ret = pcmcia_request_window(link, &req, &link->win);
439 if (ret)
440 goto failed;
441 mem.CardOffset = 0x0000;
442 mem.Page = 0;
443 ret = pcmcia_map_mem_page(link, link->win, &mem);
444 if (ret)
445 goto failed;
446 local->sram = ioremap(req.Base, req.Size);
447
448 /*** Set up 16k window for shared memory (receive buffer) ***************/
449 req.Attributes =
450 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
451 req.Base = 0;
452 req.Size = 0x4000;
453 req.AccessSpeed = ray_mem_speed;
454 ret = pcmcia_request_window(link, &req, &local->rmem_handle);
455 if (ret)
456 goto failed;
457 mem.CardOffset = 0x8000;
458 mem.Page = 0;
459 ret = pcmcia_map_mem_page(link, local->rmem_handle, &mem);
460 if (ret)
461 goto failed;
462 local->rmem = ioremap(req.Base, req.Size);
463
464 /*** Set up window for attribute memory ***********************************/
465 req.Attributes =
466 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
467 req.Base = 0;
468 req.Size = 0x1000;
469 req.AccessSpeed = ray_mem_speed;
470 ret = pcmcia_request_window(link, &req, &local->amem_handle);
471 if (ret)
472 goto failed;
473 mem.CardOffset = 0x0000;
474 mem.Page = 0;
475 ret = pcmcia_map_mem_page(link, local->amem_handle, &mem);
476 if (ret)
477 goto failed;
478 local->amem = ioremap(req.Base, req.Size);
479
480 dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram);
481 dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem);
482 dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem);
483 if (ray_init(dev) < 0) {
484 ray_release(link);
485 return -ENODEV;
486 }
487
488 SET_NETDEV_DEV(dev, &link->dev);
489 i = register_netdev(dev);
490 if (i != 0) {
491 printk("ray_config register_netdev() failed\n");
492 ray_release(link);
493 return i;
494 }
495
496 strcpy(local->node.dev_name, dev->name);
497 link->dev_node = &local->node;
498
499 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n",
500 dev->name, dev->irq, dev->dev_addr);
501
502 return 0;
503
504 failed:
505 ray_release(link);
506 return -ENODEV;
507 } /* ray_config */
508
509 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
510 {
511 return dev->sram + CCS_BASE;
512 }
513
514 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
515 {
516 /*
517 * This looks nonsensical, since there is a separate
518 * RCS_BASE. But the difference between a "struct rcs"
519 * and a "struct ccs" ends up being in the _index_ off
520 * the base, so the base pointer is the same for both
521 * ccs/rcs.
522 */
523 return dev->sram + CCS_BASE;
524 }
525
526 /*===========================================================================*/
527 static int ray_init(struct net_device *dev)
528 {
529 int i;
530 UCHAR *p;
531 struct ccs __iomem *pccs;
532 ray_dev_t *local = netdev_priv(dev);
533 struct pcmcia_device *link = local->finder;
534 dev_dbg(&link->dev, "ray_init(0x%p)\n", dev);
535 if (!(pcmcia_dev_present(link))) {
536 dev_dbg(&link->dev, "ray_init - device not present\n");
537 return -1;
538 }
539
540 local->net_type = net_type;
541 local->sta_type = TYPE_STA;
542
543 /* Copy the startup results to local memory */
544 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,
545 sizeof(struct startup_res_6));
546
547 /* Check Power up test status and get mac address from card */
548 if (local->startup_res.startup_word != 0x80) {
549 printk(KERN_INFO "ray_init ERROR card status = %2x\n",
550 local->startup_res.startup_word);
551 local->card_status = CARD_INIT_ERROR;
552 return -1;
553 }
554
555 local->fw_ver = local->startup_res.firmware_version[0];
556 local->fw_bld = local->startup_res.firmware_version[1];
557 local->fw_var = local->startup_res.firmware_version[2];
558 dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver,
559 local->fw_bld);
560
561 local->tib_length = 0x20;
562 if ((local->fw_ver == 5) && (local->fw_bld >= 30))
563 local->tib_length = local->startup_res.tib_length;
564 dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length);
565 /* Initialize CCS's to buffer free state */
566 pccs = ccs_base(local);
567 for (i = 0; i < NUMBER_OF_CCS; i++) {
568 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
569 }
570 init_startup_params(local);
571
572 /* copy mac address to startup parameters */
573 if (parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) {
574 p = local->sparm.b4.a_mac_addr;
575 } else {
576 memcpy(&local->sparm.b4.a_mac_addr,
577 &local->startup_res.station_addr, ADDRLEN);
578 p = local->sparm.b4.a_mac_addr;
579 }
580
581 clear_interrupt(local); /* Clear any interrupt from the card */
582 local->card_status = CARD_AWAITING_PARAM;
583 dev_dbg(&link->dev, "ray_init ending\n");
584 return 0;
585 } /* ray_init */
586
587 /*===========================================================================*/
588 /* Download startup parameters to the card and command it to read them */
589 static int dl_startup_params(struct net_device *dev)
590 {
591 int ccsindex;
592 ray_dev_t *local = netdev_priv(dev);
593 struct ccs __iomem *pccs;
594 struct pcmcia_device *link = local->finder;
595
596 dev_dbg(&link->dev, "dl_startup_params entered\n");
597 if (!(pcmcia_dev_present(link))) {
598 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n");
599 return -1;
600 }
601
602 /* Copy parameters to host to ECF area */
603 if (local->fw_ver == 0x55)
604 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
605 sizeof(struct b4_startup_params));
606 else
607 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
608 sizeof(struct b5_startup_params));
609
610 /* Fill in the CCS fields for the ECF */
611 if ((ccsindex = get_free_ccs(local)) < 0)
612 return -1;
613 local->dl_param_ccs = ccsindex;
614 pccs = ccs_base(local) + ccsindex;
615 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
616 dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n",
617 local->dl_param_ccs);
618 /* Interrupt the firmware to process the command */
619 if (interrupt_ecf(local, ccsindex)) {
620 printk(KERN_INFO "ray dl_startup_params failed - "
621 "ECF not ready for intr\n");
622 local->card_status = CARD_DL_PARAM_ERROR;
623 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
624 return -2;
625 }
626 local->card_status = CARD_DL_PARAM;
627 /* Start kernel timer to wait for dl startup to complete. */
628 local->timer.expires = jiffies + HZ / 2;
629 local->timer.data = (long)local;
630 local->timer.function = &verify_dl_startup;
631 add_timer(&local->timer);
632 dev_dbg(&link->dev,
633 "ray_cs dl_startup_params started timer for verify_dl_startup\n");
634 return 0;
635 } /* dl_startup_params */
636
637 /*===========================================================================*/
638 static void init_startup_params(ray_dev_t *local)
639 {
640 int i;
641
642 if (country > JAPAN_TEST)
643 country = USA;
644 else if (country < USA)
645 country = USA;
646 /* structure for hop time and beacon period is defined here using
647 * New 802.11D6.1 format. Card firmware is still using old format
648 * until version 6.
649 * Before After
650 * a_hop_time ms byte a_hop_time ms byte
651 * a_hop_time 2s byte a_hop_time ls byte
652 * a_hop_time ls byte a_beacon_period ms byte
653 * a_beacon_period a_beacon_period ls byte
654 *
655 * a_hop_time = uS a_hop_time = KuS
656 * a_beacon_period = hops a_beacon_period = KuS
657 *//* 64ms = 010000 */
658 if (local->fw_ver == 0x55) {
659 memcpy((UCHAR *) &local->sparm.b4, b4_default_startup_parms,
660 sizeof(struct b4_startup_params));
661 /* Translate sane kus input values to old build 4/5 format */
662 /* i = hop time in uS truncated to 3 bytes */
663 i = (hop_dwell * 1024) & 0xffffff;
664 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
665 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
666 local->sparm.b4.a_beacon_period[0] = 0;
667 local->sparm.b4.a_beacon_period[1] =
668 ((beacon_period / hop_dwell) - 1) & 0xff;
669 local->sparm.b4.a_curr_country_code = country;
670 local->sparm.b4.a_hop_pattern_length =
671 hop_pattern_length[(int)country] - 1;
672 if (bc) {
673 local->sparm.b4.a_ack_timeout = 0x50;
674 local->sparm.b4.a_sifs = 0x3f;
675 }
676 } else { /* Version 5 uses real kus values */
677 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms,
678 sizeof(struct b5_startup_params));
679
680 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
681 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
682 local->sparm.b5.a_beacon_period[0] =
683 (beacon_period >> 8) & 0xff;
684 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
685 if (psm)
686 local->sparm.b5.a_power_mgt_state = 1;
687 local->sparm.b5.a_curr_country_code = country;
688 local->sparm.b5.a_hop_pattern_length =
689 hop_pattern_length[(int)country];
690 }
691
692 local->sparm.b4.a_network_type = net_type & 0x01;
693 local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
694
695 if (essid != NULL)
696 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
697 } /* init_startup_params */
698
699 /*===========================================================================*/
700 static void verify_dl_startup(u_long data)
701 {
702 ray_dev_t *local = (ray_dev_t *) data;
703 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
704 UCHAR status;
705 struct pcmcia_device *link = local->finder;
706
707 if (!(pcmcia_dev_present(link))) {
708 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n");
709 return;
710 }
711 #if 0
712 {
713 int i;
714 printk(KERN_DEBUG
715 "verify_dl_startup parameters sent via ccs %d:\n",
716 local->dl_param_ccs);
717 for (i = 0; i < sizeof(struct b5_startup_params); i++) {
718 printk(" %2x",
719 (unsigned int)readb(local->sram +
720 HOST_TO_ECF_BASE + i));
721 }
722 printk("\n");
723 }
724 #endif
725
726 status = readb(&pccs->buffer_status);
727 if (status != CCS_BUFFER_FREE) {
728 printk(KERN_INFO
729 "Download startup params failed. Status = %d\n",
730 status);
731 local->card_status = CARD_DL_PARAM_ERROR;
732 return;
733 }
734 if (local->sparm.b4.a_network_type == ADHOC)
735 start_net((u_long) local);
736 else
737 join_net((u_long) local);
738 } /* end verify_dl_startup */
739
740 /*===========================================================================*/
741 /* Command card to start a network */
742 static void start_net(u_long data)
743 {
744 ray_dev_t *local = (ray_dev_t *) data;
745 struct ccs __iomem *pccs;
746 int ccsindex;
747 struct pcmcia_device *link = local->finder;
748 if (!(pcmcia_dev_present(link))) {
749 dev_dbg(&link->dev, "ray_cs start_net - device not present\n");
750 return;
751 }
752 /* Fill in the CCS fields for the ECF */
753 if ((ccsindex = get_free_ccs(local)) < 0)
754 return;
755 pccs = ccs_base(local) + ccsindex;
756 writeb(CCS_START_NETWORK, &pccs->cmd);
757 writeb(0, &pccs->var.start_network.update_param);
758 /* Interrupt the firmware to process the command */
759 if (interrupt_ecf(local, ccsindex)) {
760 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n");
761 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
762 return;
763 }
764 local->card_status = CARD_DOING_ACQ;
765 } /* end start_net */
766
767 /*===========================================================================*/
768 /* Command card to join a network */
769 static void join_net(u_long data)
770 {
771 ray_dev_t *local = (ray_dev_t *) data;
772
773 struct ccs __iomem *pccs;
774 int ccsindex;
775 struct pcmcia_device *link = local->finder;
776
777 if (!(pcmcia_dev_present(link))) {
778 dev_dbg(&link->dev, "ray_cs join_net - device not present\n");
779 return;
780 }
781 /* Fill in the CCS fields for the ECF */
782 if ((ccsindex = get_free_ccs(local)) < 0)
783 return;
784 pccs = ccs_base(local) + ccsindex;
785 writeb(CCS_JOIN_NETWORK, &pccs->cmd);
786 writeb(0, &pccs->var.join_network.update_param);
787 writeb(0, &pccs->var.join_network.net_initiated);
788 /* Interrupt the firmware to process the command */
789 if (interrupt_ecf(local, ccsindex)) {
790 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n");
791 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
792 return;
793 }
794 local->card_status = CARD_DOING_ACQ;
795 }
796
797 /*============================================================================
798 After a card is removed, ray_release() will unregister the net
799 device, and release the PCMCIA configuration. If the device is
800 still open, this will be postponed until it is closed.
801 =============================================================================*/
802 static void ray_release(struct pcmcia_device *link)
803 {
804 struct net_device *dev = link->priv;
805 ray_dev_t *local = netdev_priv(dev);
806 int i;
807
808 dev_dbg(&link->dev, "ray_release\n");
809
810 del_timer(&local->timer);
811
812 iounmap(local->sram);
813 iounmap(local->rmem);
814 iounmap(local->amem);
815 /* Do bother checking to see if these succeed or not */
816 i = pcmcia_release_window(link, local->amem_handle);
817 if (i != 0)
818 dev_dbg(&link->dev, "ReleaseWindow(local->amem) ret = %x\n", i);
819 i = pcmcia_release_window(link, local->rmem_handle);
820 if (i != 0)
821 dev_dbg(&link->dev, "ReleaseWindow(local->rmem) ret = %x\n", i);
822 pcmcia_disable_device(link);
823
824 dev_dbg(&link->dev, "ray_release ending\n");
825 }
826
827 static int ray_suspend(struct pcmcia_device *link)
828 {
829 struct net_device *dev = link->priv;
830
831 if (link->open)
832 netif_device_detach(dev);
833
834 return 0;
835 }
836
837 static int ray_resume(struct pcmcia_device *link)
838 {
839 struct net_device *dev = link->priv;
840
841 if (link->open) {
842 ray_reset(dev);
843 netif_device_attach(dev);
844 }
845
846 return 0;
847 }
848
849 /*===========================================================================*/
850 static int ray_dev_init(struct net_device *dev)
851 {
852 #ifdef RAY_IMMEDIATE_INIT
853 int i;
854 #endif /* RAY_IMMEDIATE_INIT */
855 ray_dev_t *local = netdev_priv(dev);
856 struct pcmcia_device *link = local->finder;
857
858 dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev);
859 if (!(pcmcia_dev_present(link))) {
860 dev_dbg(&link->dev, "ray_dev_init - device not present\n");
861 return -1;
862 }
863 #ifdef RAY_IMMEDIATE_INIT
864 /* Download startup parameters */
865 if ((i = dl_startup_params(dev)) < 0) {
866 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
867 "returns 0x%x\n", i);
868 return -1;
869 }
870 #else /* RAY_IMMEDIATE_INIT */
871 /* Postpone the card init so that we can still configure the card,
872 * for example using the Wireless Extensions. The init will happen
873 * in ray_open() - Jean II */
874 dev_dbg(&link->dev,
875 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
876 local->card_status);
877 #endif /* RAY_IMMEDIATE_INIT */
878
879 /* copy mac and broadcast addresses to linux device */
880 memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
881 memset(dev->broadcast, 0xff, ETH_ALEN);
882
883 dev_dbg(&link->dev, "ray_dev_init ending\n");
884 return 0;
885 }
886
887 /*===========================================================================*/
888 static int ray_dev_config(struct net_device *dev, struct ifmap *map)
889 {
890 ray_dev_t *local = netdev_priv(dev);
891 struct pcmcia_device *link = local->finder;
892 /* Dummy routine to satisfy device structure */
893 dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map);
894 if (!(pcmcia_dev_present(link))) {
895 dev_dbg(&link->dev, "ray_dev_config - device not present\n");
896 return -1;
897 }
898
899 return 0;
900 }
901
902 /*===========================================================================*/
903 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
904 struct net_device *dev)
905 {
906 ray_dev_t *local = netdev_priv(dev);
907 struct pcmcia_device *link = local->finder;
908 short length = skb->len;
909
910 if (!pcmcia_dev_present(link)) {
911 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n");
912 dev_kfree_skb(skb);
913 return NETDEV_TX_OK;
914 }
915
916 dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
917 if (local->authentication_state == NEED_TO_AUTH) {
918 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n");
919 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
920 local->authentication_state = AUTHENTICATED;
921 netif_stop_queue(dev);
922 return NETDEV_TX_BUSY;
923 }
924 }
925
926 if (length < ETH_ZLEN) {
927 if (skb_padto(skb, ETH_ZLEN))
928 return NETDEV_TX_OK;
929 length = ETH_ZLEN;
930 }
931 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) {
932 case XMIT_NO_CCS:
933 case XMIT_NEED_AUTH:
934 netif_stop_queue(dev);
935 return NETDEV_TX_BUSY;
936 case XMIT_NO_INTR:
937 case XMIT_MSG_BAD:
938 case XMIT_OK:
939 default:
940 dev_kfree_skb(skb);
941 }
942
943 return NETDEV_TX_OK;
944 } /* ray_dev_start_xmit */
945
946 /*===========================================================================*/
947 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
948 UCHAR msg_type)
949 {
950 ray_dev_t *local = netdev_priv(dev);
951 struct ccs __iomem *pccs;
952 int ccsindex;
953 int offset;
954 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */
955 short int addr; /* Address of xmit buffer in card space */
956
957 pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev);
958 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) {
959 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",
960 len);
961 return XMIT_MSG_BAD;
962 }
963 switch (ccsindex = get_free_tx_ccs(local)) {
964 case ECCSBUSY:
965 pr_debug("ray_hw_xmit tx_ccs table busy\n");
966 case ECCSFULL:
967 pr_debug("ray_hw_xmit No free tx ccs\n");
968 case ECARDGONE:
969 netif_stop_queue(dev);
970 return XMIT_NO_CCS;
971 default:
972 break;
973 }
974 addr = TX_BUF_BASE + (ccsindex << 11);
975
976 if (msg_type == DATA_TYPE) {
977 local->stats.tx_bytes += len;
978 local->stats.tx_packets++;
979 }
980
981 ptx = local->sram + addr;
982
983 ray_build_header(local, ptx, msg_type, data);
984 if (translate) {
985 offset = translate_frame(local, ptx, data, len);
986 } else { /* Encapsulate frame */
987 /* TBD TIB length will move address of ptx->var */
988 memcpy_toio(&ptx->var, data, len);
989 offset = 0;
990 }
991
992 /* fill in the CCS */
993 pccs = ccs_base(local) + ccsindex;
994 len += TX_HEADER_LENGTH + offset;
995 writeb(CCS_TX_REQUEST, &pccs->cmd);
996 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
997 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
998 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
999 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
1000 /* TBD still need psm_cam? */
1001 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
1002 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
1003 writeb(0, &pccs->var.tx_request.antenna);
1004 pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n",
1005 local->net_default_tx_rate);
1006
1007 /* Interrupt the firmware to process the command */
1008 if (interrupt_ecf(local, ccsindex)) {
1009 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n");
1010 /* TBD very inefficient to copy packet to buffer, and then not
1011 send it, but the alternative is to queue the messages and that
1012 won't be done for a while. Maybe set tbusy until a CCS is free?
1013 */
1014 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
1015 return XMIT_NO_INTR;
1016 }
1017 return XMIT_OK;
1018 } /* end ray_hw_xmit */
1019
1020 /*===========================================================================*/
1021 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
1022 unsigned char *data, int len)
1023 {
1024 __be16 proto = ((struct ethhdr *)data)->h_proto;
1025 if (ntohs(proto) >= 1536) { /* DIX II ethernet frame */
1026 pr_debug("ray_cs translate_frame DIX II\n");
1027 /* Copy LLC header to card buffer */
1028 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
1029 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc),
1030 (UCHAR *) &proto, 2);
1031 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
1032 /* This is the selective translation table, only 2 entries */
1033 writeb(0xf8,
1034 &((struct snaphdr_t __iomem *)ptx->var)->org[3]);
1035 }
1036 /* Copy body of ethernet packet without ethernet header */
1037 memcpy_toio((void __iomem *)&ptx->var +
1038 sizeof(struct snaphdr_t), data + ETH_HLEN,
1039 len - ETH_HLEN);
1040 return (int)sizeof(struct snaphdr_t) - ETH_HLEN;
1041 } else { /* already 802 type, and proto is length */
1042 pr_debug("ray_cs translate_frame 802\n");
1043 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
1044 pr_debug("ray_cs translate_frame evil IPX\n");
1045 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
1046 return 0 - ETH_HLEN;
1047 }
1048 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
1049 return 0 - ETH_HLEN;
1050 }
1051 /* TBD do other frame types */
1052 } /* end translate_frame */
1053
1054 /*===========================================================================*/
1055 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
1056 UCHAR msg_type, unsigned char *data)
1057 {
1058 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
1059 /*** IEEE 802.11 Address field assignments *************
1060 TODS FROMDS addr_1 addr_2 addr_3 addr_4
1061 Adhoc 0 0 dest src (terminal) BSSID N/A
1062 AP to Terminal 0 1 dest AP(BSSID) source N/A
1063 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A
1064 AP to AP 1 1 dest AP src AP dest source
1065 *******************************************************/
1066 if (local->net_type == ADHOC) {
1067 writeb(0, &ptx->mac.frame_ctl_2);
1068 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest,
1069 2 * ADDRLEN);
1070 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
1071 } else { /* infrastructure */
1072
1073 if (local->sparm.b4.a_acting_as_ap_status) {
1074 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
1075 memcpy_toio(ptx->mac.addr_1,
1076 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1077 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
1078 memcpy_toio(ptx->mac.addr_3,
1079 ((struct ethhdr *)data)->h_source, ADDRLEN);
1080 } else { /* Terminal */
1081
1082 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
1083 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1084 memcpy_toio(ptx->mac.addr_2,
1085 ((struct ethhdr *)data)->h_source, ADDRLEN);
1086 memcpy_toio(ptx->mac.addr_3,
1087 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1088 }
1089 }
1090 } /* end encapsulate_frame */
1091
1092 /*===========================================================================*/
1093
1094 static void netdev_get_drvinfo(struct net_device *dev,
1095 struct ethtool_drvinfo *info)
1096 {
1097 strcpy(info->driver, "ray_cs");
1098 }
1099
1100 static const struct ethtool_ops netdev_ethtool_ops = {
1101 .get_drvinfo = netdev_get_drvinfo,
1102 };
1103
1104 /*====================================================================*/
1105
1106 /*------------------------------------------------------------------*/
1107 /*
1108 * Wireless Handler : get protocol name
1109 */
1110 static int ray_get_name(struct net_device *dev, struct iw_request_info *info,
1111 union iwreq_data *wrqu, char *extra)
1112 {
1113 strcpy(wrqu->name, "IEEE 802.11-FH");
1114 return 0;
1115 }
1116
1117 /*------------------------------------------------------------------*/
1118 /*
1119 * Wireless Handler : set frequency
1120 */
1121 static int ray_set_freq(struct net_device *dev, struct iw_request_info *info,
1122 union iwreq_data *wrqu, char *extra)
1123 {
1124 ray_dev_t *local = netdev_priv(dev);
1125 int err = -EINPROGRESS; /* Call commit handler */
1126
1127 /* Reject if card is already initialised */
1128 if (local->card_status != CARD_AWAITING_PARAM)
1129 return -EBUSY;
1130
1131 /* Setting by channel number */
1132 if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0))
1133 err = -EOPNOTSUPP;
1134 else
1135 local->sparm.b5.a_hop_pattern = wrqu->freq.m;
1136
1137 return err;
1138 }
1139
1140 /*------------------------------------------------------------------*/
1141 /*
1142 * Wireless Handler : get frequency
1143 */
1144 static int ray_get_freq(struct net_device *dev, struct iw_request_info *info,
1145 union iwreq_data *wrqu, char *extra)
1146 {
1147 ray_dev_t *local = netdev_priv(dev);
1148
1149 wrqu->freq.m = local->sparm.b5.a_hop_pattern;
1150 wrqu->freq.e = 0;
1151 return 0;
1152 }
1153
1154 /*------------------------------------------------------------------*/
1155 /*
1156 * Wireless Handler : set ESSID
1157 */
1158 static int ray_set_essid(struct net_device *dev, struct iw_request_info *info,
1159 union iwreq_data *wrqu, char *extra)
1160 {
1161 ray_dev_t *local = netdev_priv(dev);
1162
1163 /* Reject if card is already initialised */
1164 if (local->card_status != CARD_AWAITING_PARAM)
1165 return -EBUSY;
1166
1167 /* Check if we asked for `any' */
1168 if (wrqu->essid.flags == 0)
1169 /* Corey : can you do that ? */
1170 return -EOPNOTSUPP;
1171
1172 /* Check the size of the string */
1173 if (wrqu->essid.length > IW_ESSID_MAX_SIZE)
1174 return -E2BIG;
1175
1176 /* Set the ESSID in the card */
1177 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1178 memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length);
1179
1180 return -EINPROGRESS; /* Call commit handler */
1181 }
1182
1183 /*------------------------------------------------------------------*/
1184 /*
1185 * Wireless Handler : get ESSID
1186 */
1187 static int ray_get_essid(struct net_device *dev, struct iw_request_info *info,
1188 union iwreq_data *wrqu, char *extra)
1189 {
1190 ray_dev_t *local = netdev_priv(dev);
1191
1192 /* Get the essid that was set */
1193 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1194
1195 /* Push it out ! */
1196 wrqu->essid.length = strlen(extra);
1197 wrqu->essid.flags = 1; /* active */
1198
1199 return 0;
1200 }
1201
1202 /*------------------------------------------------------------------*/
1203 /*
1204 * Wireless Handler : get AP address
1205 */
1206 static int ray_get_wap(struct net_device *dev, struct iw_request_info *info,
1207 union iwreq_data *wrqu, char *extra)
1208 {
1209 ray_dev_t *local = netdev_priv(dev);
1210
1211 memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN);
1212 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1213
1214 return 0;
1215 }
1216
1217 /*------------------------------------------------------------------*/
1218 /*
1219 * Wireless Handler : set Bit-Rate
1220 */
1221 static int ray_set_rate(struct net_device *dev, struct iw_request_info *info,
1222 union iwreq_data *wrqu, char *extra)
1223 {
1224 ray_dev_t *local = netdev_priv(dev);
1225
1226 /* Reject if card is already initialised */
1227 if (local->card_status != CARD_AWAITING_PARAM)
1228 return -EBUSY;
1229
1230 /* Check if rate is in range */
1231 if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000))
1232 return -EINVAL;
1233
1234 /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1235 if ((local->fw_ver == 0x55) && /* Please check */
1236 (wrqu->bitrate.value == 2000000))
1237 local->net_default_tx_rate = 3;
1238 else
1239 local->net_default_tx_rate = wrqu->bitrate.value / 500000;
1240
1241 return 0;
1242 }
1243
1244 /*------------------------------------------------------------------*/
1245 /*
1246 * Wireless Handler : get Bit-Rate
1247 */
1248 static int ray_get_rate(struct net_device *dev, struct iw_request_info *info,
1249 union iwreq_data *wrqu, char *extra)
1250 {
1251 ray_dev_t *local = netdev_priv(dev);
1252
1253 if (local->net_default_tx_rate == 3)
1254 wrqu->bitrate.value = 2000000; /* Hum... */
1255 else
1256 wrqu->bitrate.value = local->net_default_tx_rate * 500000;
1257 wrqu->bitrate.fixed = 0; /* We are in auto mode */
1258
1259 return 0;
1260 }
1261
1262 /*------------------------------------------------------------------*/
1263 /*
1264 * Wireless Handler : set RTS threshold
1265 */
1266 static int ray_set_rts(struct net_device *dev, struct iw_request_info *info,
1267 union iwreq_data *wrqu, char *extra)
1268 {
1269 ray_dev_t *local = netdev_priv(dev);
1270 int rthr = wrqu->rts.value;
1271
1272 /* Reject if card is already initialised */
1273 if (local->card_status != CARD_AWAITING_PARAM)
1274 return -EBUSY;
1275
1276 /* if(wrq->u.rts.fixed == 0) we should complain */
1277 if (wrqu->rts.disabled)
1278 rthr = 32767;
1279 else {
1280 if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */
1281 return -EINVAL;
1282 }
1283 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1284 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1285
1286 return -EINPROGRESS; /* Call commit handler */
1287 }
1288
1289 /*------------------------------------------------------------------*/
1290 /*
1291 * Wireless Handler : get RTS threshold
1292 */
1293 static int ray_get_rts(struct net_device *dev, struct iw_request_info *info,
1294 union iwreq_data *wrqu, char *extra)
1295 {
1296 ray_dev_t *local = netdev_priv(dev);
1297
1298 wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8)
1299 + local->sparm.b5.a_rts_threshold[1];
1300 wrqu->rts.disabled = (wrqu->rts.value == 32767);
1301 wrqu->rts.fixed = 1;
1302
1303 return 0;
1304 }
1305
1306 /*------------------------------------------------------------------*/
1307 /*
1308 * Wireless Handler : set Fragmentation threshold
1309 */
1310 static int ray_set_frag(struct net_device *dev, struct iw_request_info *info,
1311 union iwreq_data *wrqu, char *extra)
1312 {
1313 ray_dev_t *local = netdev_priv(dev);
1314 int fthr = wrqu->frag.value;
1315
1316 /* Reject if card is already initialised */
1317 if (local->card_status != CARD_AWAITING_PARAM)
1318 return -EBUSY;
1319
1320 /* if(wrq->u.frag.fixed == 0) should complain */
1321 if (wrqu->frag.disabled)
1322 fthr = 32767;
1323 else {
1324 if ((fthr < 256) || (fthr > 2347)) /* To check out ! */
1325 return -EINVAL;
1326 }
1327 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1328 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1329
1330 return -EINPROGRESS; /* Call commit handler */
1331 }
1332
1333 /*------------------------------------------------------------------*/
1334 /*
1335 * Wireless Handler : get Fragmentation threshold
1336 */
1337 static int ray_get_frag(struct net_device *dev, struct iw_request_info *info,
1338 union iwreq_data *wrqu, char *extra)
1339 {
1340 ray_dev_t *local = netdev_priv(dev);
1341
1342 wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8)
1343 + local->sparm.b5.a_frag_threshold[1];
1344 wrqu->frag.disabled = (wrqu->frag.value == 32767);
1345 wrqu->frag.fixed = 1;
1346
1347 return 0;
1348 }
1349
1350 /*------------------------------------------------------------------*/
1351 /*
1352 * Wireless Handler : set Mode of Operation
1353 */
1354 static int ray_set_mode(struct net_device *dev, struct iw_request_info *info,
1355 union iwreq_data *wrqu, char *extra)
1356 {
1357 ray_dev_t *local = netdev_priv(dev);
1358 int err = -EINPROGRESS; /* Call commit handler */
1359 char card_mode = 1;
1360
1361 /* Reject if card is already initialised */
1362 if (local->card_status != CARD_AWAITING_PARAM)
1363 return -EBUSY;
1364
1365 switch (wrqu->mode) {
1366 case IW_MODE_ADHOC:
1367 card_mode = 0;
1368 /* Fall through */
1369 case IW_MODE_INFRA:
1370 local->sparm.b5.a_network_type = card_mode;
1371 break;
1372 default:
1373 err = -EINVAL;
1374 }
1375
1376 return err;
1377 }
1378
1379 /*------------------------------------------------------------------*/
1380 /*
1381 * Wireless Handler : get Mode of Operation
1382 */
1383 static int ray_get_mode(struct net_device *dev, struct iw_request_info *info,
1384 union iwreq_data *wrqu, char *extra)
1385 {
1386 ray_dev_t *local = netdev_priv(dev);
1387
1388 if (local->sparm.b5.a_network_type)
1389 wrqu->mode = IW_MODE_INFRA;
1390 else
1391 wrqu->mode = IW_MODE_ADHOC;
1392
1393 return 0;
1394 }
1395
1396 /*------------------------------------------------------------------*/
1397 /*
1398 * Wireless Handler : get range info
1399 */
1400 static int ray_get_range(struct net_device *dev, struct iw_request_info *info,
1401 union iwreq_data *wrqu, char *extra)
1402 {
1403 struct iw_range *range = (struct iw_range *)extra;
1404
1405 memset(range, 0, sizeof(struct iw_range));
1406
1407 /* Set the length (very important for backward compatibility) */
1408 wrqu->data.length = sizeof(struct iw_range);
1409
1410 /* Set the Wireless Extension versions */
1411 range->we_version_compiled = WIRELESS_EXT;
1412 range->we_version_source = 9;
1413
1414 /* Set information in the range struct */
1415 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */
1416 range->num_channels = hop_pattern_length[(int)country];
1417 range->num_frequency = 0;
1418 range->max_qual.qual = 0;
1419 range->max_qual.level = 255; /* What's the correct value ? */
1420 range->max_qual.noise = 255; /* Idem */
1421 range->num_bitrates = 2;
1422 range->bitrate[0] = 1000000; /* 1 Mb/s */
1423 range->bitrate[1] = 2000000; /* 2 Mb/s */
1424 return 0;
1425 }
1426
1427 /*------------------------------------------------------------------*/
1428 /*
1429 * Wireless Private Handler : set framing mode
1430 */
1431 static int ray_set_framing(struct net_device *dev, struct iw_request_info *info,
1432 union iwreq_data *wrqu, char *extra)
1433 {
1434 translate = *(extra); /* Set framing mode */
1435
1436 return 0;
1437 }
1438
1439 /*------------------------------------------------------------------*/
1440 /*
1441 * Wireless Private Handler : get framing mode
1442 */
1443 static int ray_get_framing(struct net_device *dev, struct iw_request_info *info,
1444 union iwreq_data *wrqu, char *extra)
1445 {
1446 *(extra) = translate;
1447
1448 return 0;
1449 }
1450
1451 /*------------------------------------------------------------------*/
1452 /*
1453 * Wireless Private Handler : get country
1454 */
1455 static int ray_get_country(struct net_device *dev, struct iw_request_info *info,
1456 union iwreq_data *wrqu, char *extra)
1457 {
1458 *(extra) = country;
1459
1460 return 0;
1461 }
1462
1463 /*------------------------------------------------------------------*/
1464 /*
1465 * Commit handler : called after a bunch of SET operations
1466 */
1467 static int ray_commit(struct net_device *dev, struct iw_request_info *info,
1468 union iwreq_data *wrqu, char *extra)
1469 {
1470 return 0;
1471 }
1472
1473 /*------------------------------------------------------------------*/
1474 /*
1475 * Stats handler : return Wireless Stats
1476 */
1477 static iw_stats *ray_get_wireless_stats(struct net_device *dev)
1478 {
1479 ray_dev_t *local = netdev_priv(dev);
1480 struct pcmcia_device *link = local->finder;
1481 struct status __iomem *p = local->sram + STATUS_BASE;
1482
1483 local->wstats.status = local->card_status;
1484 #ifdef WIRELESS_SPY
1485 if ((local->spy_data.spy_number > 0)
1486 && (local->sparm.b5.a_network_type == 0)) {
1487 /* Get it from the first node in spy list */
1488 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1489 local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1490 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1491 local->wstats.qual.updated =
1492 local->spy_data.spy_stat[0].updated;
1493 }
1494 #endif /* WIRELESS_SPY */
1495
1496 if (pcmcia_dev_present(link)) {
1497 local->wstats.qual.noise = readb(&p->rxnoise);
1498 local->wstats.qual.updated |= 4;
1499 }
1500
1501 return &local->wstats;
1502 } /* end ray_get_wireless_stats */
1503
1504 /*------------------------------------------------------------------*/
1505 /*
1506 * Structures to export the Wireless Handlers
1507 */
1508
1509 static const iw_handler ray_handler[] = {
1510 IW_HANDLER(SIOCSIWCOMMIT, ray_commit),
1511 IW_HANDLER(SIOCGIWNAME, ray_get_name),
1512 IW_HANDLER(SIOCSIWFREQ, ray_set_freq),
1513 IW_HANDLER(SIOCGIWFREQ, ray_get_freq),
1514 IW_HANDLER(SIOCSIWMODE, ray_set_mode),
1515 IW_HANDLER(SIOCGIWMODE, ray_get_mode),
1516 IW_HANDLER(SIOCGIWRANGE, ray_get_range),
1517 #ifdef WIRELESS_SPY
1518 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1519 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1520 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1521 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1522 #endif /* WIRELESS_SPY */
1523 IW_HANDLER(SIOCGIWAP, ray_get_wap),
1524 IW_HANDLER(SIOCSIWESSID, ray_set_essid),
1525 IW_HANDLER(SIOCGIWESSID, ray_get_essid),
1526 IW_HANDLER(SIOCSIWRATE, ray_set_rate),
1527 IW_HANDLER(SIOCGIWRATE, ray_get_rate),
1528 IW_HANDLER(SIOCSIWRTS, ray_set_rts),
1529 IW_HANDLER(SIOCGIWRTS, ray_get_rts),
1530 IW_HANDLER(SIOCSIWFRAG, ray_set_frag),
1531 IW_HANDLER(SIOCGIWFRAG, ray_get_frag),
1532 };
1533
1534 #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */
1535 #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */
1536 #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */
1537
1538 static const iw_handler ray_private_handler[] = {
1539 [0] = ray_set_framing,
1540 [1] = ray_get_framing,
1541 [3] = ray_get_country,
1542 };
1543
1544 static const struct iw_priv_args ray_private_args[] = {
1545 /* cmd, set_args, get_args, name */
1546 {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0,
1547 "set_framing"},
1548 {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1549 "get_framing"},
1550 {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1551 "get_country"},
1552 };
1553
1554 static const struct iw_handler_def ray_handler_def = {
1555 .num_standard = ARRAY_SIZE(ray_handler),
1556 .num_private = ARRAY_SIZE(ray_private_handler),
1557 .num_private_args = ARRAY_SIZE(ray_private_args),
1558 .standard = ray_handler,
1559 .private = ray_private_handler,
1560 .private_args = ray_private_args,
1561 .get_wireless_stats = ray_get_wireless_stats,
1562 };
1563
1564 /*===========================================================================*/
1565 static int ray_open(struct net_device *dev)
1566 {
1567 ray_dev_t *local = netdev_priv(dev);
1568 struct pcmcia_device *link;
1569 link = local->finder;
1570
1571 dev_dbg(&link->dev, "ray_open('%s')\n", dev->name);
1572
1573 if (link->open == 0)
1574 local->num_multi = 0;
1575 link->open++;
1576
1577 /* If the card is not started, time to start it ! - Jean II */
1578 if (local->card_status == CARD_AWAITING_PARAM) {
1579 int i;
1580
1581 dev_dbg(&link->dev, "ray_open: doing init now !\n");
1582
1583 /* Download startup parameters */
1584 if ((i = dl_startup_params(dev)) < 0) {
1585 printk(KERN_INFO
1586 "ray_dev_init dl_startup_params failed - "
1587 "returns 0x%x\n", i);
1588 return -1;
1589 }
1590 }
1591
1592 if (sniffer)
1593 netif_stop_queue(dev);
1594 else
1595 netif_start_queue(dev);
1596
1597 dev_dbg(&link->dev, "ray_open ending\n");
1598 return 0;
1599 } /* end ray_open */
1600
1601 /*===========================================================================*/
1602 static int ray_dev_close(struct net_device *dev)
1603 {
1604 ray_dev_t *local = netdev_priv(dev);
1605 struct pcmcia_device *link;
1606 link = local->finder;
1607
1608 dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name);
1609
1610 link->open--;
1611 netif_stop_queue(dev);
1612
1613 /* In here, we should stop the hardware (stop card from beeing active)
1614 * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1615 * card is closed we can chage its configuration.
1616 * Probably also need a COR reset to get sane state - Jean II */
1617
1618 return 0;
1619 } /* end ray_dev_close */
1620
1621 /*===========================================================================*/
1622 static void ray_reset(struct net_device *dev)
1623 {
1624 pr_debug("ray_reset entered\n");
1625 }
1626
1627 /*===========================================================================*/
1628 /* Cause a firmware interrupt if it is ready for one */
1629 /* Return nonzero if not ready */
1630 static int interrupt_ecf(ray_dev_t *local, int ccs)
1631 {
1632 int i = 50;
1633 struct pcmcia_device *link = local->finder;
1634
1635 if (!(pcmcia_dev_present(link))) {
1636 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n");
1637 return -1;
1638 }
1639 dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs);
1640
1641 while (i &&
1642 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) &
1643 ECF_INTR_SET))
1644 i--;
1645 if (i == 0) {
1646 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n");
1647 return -1;
1648 }
1649 /* Fill the mailbox, then kick the card */
1650 writeb(ccs, local->sram + SCB_BASE);
1651 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1652 return 0;
1653 } /* interrupt_ecf */
1654
1655 /*===========================================================================*/
1656 /* Get next free transmit CCS */
1657 /* Return - index of current tx ccs */
1658 static int get_free_tx_ccs(ray_dev_t *local)
1659 {
1660 int i;
1661 struct ccs __iomem *pccs = ccs_base(local);
1662 struct pcmcia_device *link = local->finder;
1663
1664 if (!(pcmcia_dev_present(link))) {
1665 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n");
1666 return ECARDGONE;
1667 }
1668
1669 if (test_and_set_bit(0, &local->tx_ccs_lock)) {
1670 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n");
1671 return ECCSBUSY;
1672 }
1673
1674 for (i = 0; i < NUMBER_OF_TX_CCS; i++) {
1675 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1676 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1677 writeb(CCS_END_LIST, &(pccs + i)->link);
1678 local->tx_ccs_lock = 0;
1679 return i;
1680 }
1681 }
1682 local->tx_ccs_lock = 0;
1683 dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n");
1684 return ECCSFULL;
1685 } /* get_free_tx_ccs */
1686
1687 /*===========================================================================*/
1688 /* Get next free CCS */
1689 /* Return - index of current ccs */
1690 static int get_free_ccs(ray_dev_t *local)
1691 {
1692 int i;
1693 struct ccs __iomem *pccs = ccs_base(local);
1694 struct pcmcia_device *link = local->finder;
1695
1696 if (!(pcmcia_dev_present(link))) {
1697 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n");
1698 return ECARDGONE;
1699 }
1700 if (test_and_set_bit(0, &local->ccs_lock)) {
1701 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n");
1702 return ECCSBUSY;
1703 }
1704
1705 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1706 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1707 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1708 writeb(CCS_END_LIST, &(pccs + i)->link);
1709 local->ccs_lock = 0;
1710 return i;
1711 }
1712 }
1713 local->ccs_lock = 0;
1714 dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n");
1715 return ECCSFULL;
1716 } /* get_free_ccs */
1717
1718 /*===========================================================================*/
1719 static void authenticate_timeout(u_long data)
1720 {
1721 ray_dev_t *local = (ray_dev_t *) data;
1722 del_timer(&local->timer);
1723 printk(KERN_INFO "ray_cs Authentication with access point failed"
1724 " - timeout\n");
1725 join_net((u_long) local);
1726 }
1727
1728 /*===========================================================================*/
1729 static int asc_to_int(char a)
1730 {
1731 if (a < '0')
1732 return -1;
1733 if (a <= '9')
1734 return (a - '0');
1735 if (a < 'A')
1736 return -1;
1737 if (a <= 'F')
1738 return (10 + a - 'A');
1739 if (a < 'a')
1740 return -1;
1741 if (a <= 'f')
1742 return (10 + a - 'a');
1743 return -1;
1744 }
1745
1746 /*===========================================================================*/
1747 static int parse_addr(char *in_str, UCHAR *out)
1748 {
1749 int len;
1750 int i, j, k;
1751 int status;
1752
1753 if (in_str == NULL)
1754 return 0;
1755 if ((len = strlen(in_str)) < 2)
1756 return 0;
1757 memset(out, 0, ADDRLEN);
1758
1759 status = 1;
1760 j = len - 1;
1761 if (j > 12)
1762 j = 12;
1763 i = 5;
1764
1765 while (j > 0) {
1766 if ((k = asc_to_int(in_str[j--])) != -1)
1767 out[i] = k;
1768 else
1769 return 0;
1770
1771 if (j == 0)
1772 break;
1773 if ((k = asc_to_int(in_str[j--])) != -1)
1774 out[i] += k << 4;
1775 else
1776 return 0;
1777 if (!i--)
1778 break;
1779 }
1780 return status;
1781 }
1782
1783 /*===========================================================================*/
1784 static struct net_device_stats *ray_get_stats(struct net_device *dev)
1785 {
1786 ray_dev_t *local = netdev_priv(dev);
1787 struct pcmcia_device *link = local->finder;
1788 struct status __iomem *p = local->sram + STATUS_BASE;
1789 if (!(pcmcia_dev_present(link))) {
1790 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n");
1791 return &local->stats;
1792 }
1793 if (readb(&p->mrx_overflow_for_host)) {
1794 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1795 writeb(0, &p->mrx_overflow);
1796 writeb(0, &p->mrx_overflow_for_host);
1797 }
1798 if (readb(&p->mrx_checksum_error_for_host)) {
1799 local->stats.rx_crc_errors +=
1800 swab16(readw(&p->mrx_checksum_error));
1801 writeb(0, &p->mrx_checksum_error);
1802 writeb(0, &p->mrx_checksum_error_for_host);
1803 }
1804 if (readb(&p->rx_hec_error_for_host)) {
1805 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1806 writeb(0, &p->rx_hec_error);
1807 writeb(0, &p->rx_hec_error_for_host);
1808 }
1809 return &local->stats;
1810 }
1811
1812 /*===========================================================================*/
1813 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value,
1814 int len)
1815 {
1816 ray_dev_t *local = netdev_priv(dev);
1817 struct pcmcia_device *link = local->finder;
1818 int ccsindex;
1819 int i;
1820 struct ccs __iomem *pccs;
1821
1822 if (!(pcmcia_dev_present(link))) {
1823 dev_dbg(&link->dev, "ray_update_parm - device not present\n");
1824 return;
1825 }
1826
1827 if ((ccsindex = get_free_ccs(local)) < 0) {
1828 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n");
1829 return;
1830 }
1831 pccs = ccs_base(local) + ccsindex;
1832 writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1833 writeb(objid, &pccs->var.update_param.object_id);
1834 writeb(1, &pccs->var.update_param.number_objects);
1835 writeb(0, &pccs->var.update_param.failure_cause);
1836 for (i = 0; i < len; i++) {
1837 writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1838 }
1839 /* Interrupt the firmware to process the command */
1840 if (interrupt_ecf(local, ccsindex)) {
1841 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
1842 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1843 }
1844 }
1845
1846 /*===========================================================================*/
1847 static void ray_update_multi_list(struct net_device *dev, int all)
1848 {
1849 int ccsindex;
1850 struct ccs __iomem *pccs;
1851 ray_dev_t *local = netdev_priv(dev);
1852 struct pcmcia_device *link = local->finder;
1853 void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1854
1855 if (!(pcmcia_dev_present(link))) {
1856 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n");
1857 return;
1858 } else
1859 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev);
1860 if ((ccsindex = get_free_ccs(local)) < 0) {
1861 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n");
1862 return;
1863 }
1864 pccs = ccs_base(local) + ccsindex;
1865 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1866
1867 if (all) {
1868 writeb(0xff, &pccs->var);
1869 local->num_multi = 0xff;
1870 } else {
1871 struct netdev_hw_addr *ha;
1872 int i = 0;
1873
1874 /* Copy the kernel's list of MC addresses to card */
1875 netdev_for_each_mc_addr(ha, dev) {
1876 memcpy_toio(p, ha->addr, ETH_ALEN);
1877 dev_dbg(&link->dev,
1878 "ray_update_multi add addr %02x%02x%02x%02x%02x%02x\n",
1879 ha->addr[0], ha->addr[1],
1880 ha->addr[2], ha->addr[3],
1881 ha->addr[4], ha->addr[5]);
1882 p += ETH_ALEN;
1883 i++;
1884 }
1885 if (i > 256 / ADDRLEN)
1886 i = 256 / ADDRLEN;
1887 writeb((UCHAR) i, &pccs->var);
1888 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i);
1889 /* Interrupt the firmware to process the command */
1890 local->num_multi = i;
1891 }
1892 if (interrupt_ecf(local, ccsindex)) {
1893 dev_dbg(&link->dev,
1894 "ray_cs update_multi failed - ECF not ready for intr\n");
1895 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1896 }
1897 } /* end ray_update_multi_list */
1898
1899 /*===========================================================================*/
1900 static void set_multicast_list(struct net_device *dev)
1901 {
1902 ray_dev_t *local = netdev_priv(dev);
1903 UCHAR promisc;
1904
1905 pr_debug("ray_cs set_multicast_list(%p)\n", dev);
1906
1907 if (dev->flags & IFF_PROMISC) {
1908 if (local->sparm.b5.a_promiscuous_mode == 0) {
1909 pr_debug("ray_cs set_multicast_list promisc on\n");
1910 local->sparm.b5.a_promiscuous_mode = 1;
1911 promisc = 1;
1912 ray_update_parm(dev, OBJID_promiscuous_mode,
1913 &promisc, sizeof(promisc));
1914 }
1915 } else {
1916 if (local->sparm.b5.a_promiscuous_mode == 1) {
1917 pr_debug("ray_cs set_multicast_list promisc off\n");
1918 local->sparm.b5.a_promiscuous_mode = 0;
1919 promisc = 0;
1920 ray_update_parm(dev, OBJID_promiscuous_mode,
1921 &promisc, sizeof(promisc));
1922 }
1923 }
1924
1925 if (dev->flags & IFF_ALLMULTI)
1926 ray_update_multi_list(dev, 1);
1927 else {
1928 if (local->num_multi != netdev_mc_count(dev))
1929 ray_update_multi_list(dev, 0);
1930 }
1931 } /* end set_multicast_list */
1932
1933 /*=============================================================================
1934 * All routines below here are run at interrupt time.
1935 =============================================================================*/
1936 static irqreturn_t ray_interrupt(int irq, void *dev_id)
1937 {
1938 struct net_device *dev = (struct net_device *)dev_id;
1939 struct pcmcia_device *link;
1940 ray_dev_t *local;
1941 struct ccs __iomem *pccs;
1942 struct rcs __iomem *prcs;
1943 UCHAR rcsindex;
1944 UCHAR tmp;
1945 UCHAR cmd;
1946 UCHAR status;
1947
1948 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */
1949 return IRQ_NONE;
1950
1951 pr_debug("ray_cs: interrupt for *dev=%p\n", dev);
1952
1953 local = netdev_priv(dev);
1954 link = (struct pcmcia_device *)local->finder;
1955 if (!pcmcia_dev_present(link)) {
1956 pr_debug(
1957 "ray_cs interrupt from device not present or suspended.\n");
1958 return IRQ_NONE;
1959 }
1960 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1961
1962 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
1963 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex);
1964 clear_interrupt(local);
1965 return IRQ_HANDLED;
1966 }
1967 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */
1968 pccs = ccs_base(local) + rcsindex;
1969 cmd = readb(&pccs->cmd);
1970 status = readb(&pccs->buffer_status);
1971 switch (cmd) {
1972 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */
1973 del_timer(&local->timer);
1974 if (status == CCS_COMMAND_COMPLETE) {
1975 dev_dbg(&link->dev,
1976 "ray_cs interrupt download_startup_parameters OK\n");
1977 } else {
1978 dev_dbg(&link->dev,
1979 "ray_cs interrupt download_startup_parameters fail\n");
1980 }
1981 break;
1982 case CCS_UPDATE_PARAMS:
1983 dev_dbg(&link->dev, "ray_cs interrupt update params done\n");
1984 if (status != CCS_COMMAND_COMPLETE) {
1985 tmp =
1986 readb(&pccs->var.update_param.
1987 failure_cause);
1988 dev_dbg(&link->dev,
1989 "ray_cs interrupt update params failed - reason %d\n",
1990 tmp);
1991 }
1992 break;
1993 case CCS_REPORT_PARAMS:
1994 dev_dbg(&link->dev, "ray_cs interrupt report params done\n");
1995 break;
1996 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
1997 dev_dbg(&link->dev,
1998 "ray_cs interrupt CCS Update Multicast List done\n");
1999 break;
2000 case CCS_UPDATE_POWER_SAVINGS_MODE:
2001 dev_dbg(&link->dev,
2002 "ray_cs interrupt update power save mode done\n");
2003 break;
2004 case CCS_START_NETWORK:
2005 case CCS_JOIN_NETWORK:
2006 if (status == CCS_COMMAND_COMPLETE) {
2007 if (readb
2008 (&pccs->var.start_network.net_initiated) ==
2009 1) {
2010 dev_dbg(&link->dev,
2011 "ray_cs interrupt network \"%s\" started\n",
2012 local->sparm.b4.a_current_ess_id);
2013 } else {
2014 dev_dbg(&link->dev,
2015 "ray_cs interrupt network \"%s\" joined\n",
2016 local->sparm.b4.a_current_ess_id);
2017 }
2018 memcpy_fromio(&local->bss_id,
2019 pccs->var.start_network.bssid,
2020 ADDRLEN);
2021
2022 if (local->fw_ver == 0x55)
2023 local->net_default_tx_rate = 3;
2024 else
2025 local->net_default_tx_rate =
2026 readb(&pccs->var.start_network.
2027 net_default_tx_rate);
2028 local->encryption =
2029 readb(&pccs->var.start_network.encryption);
2030 if (!sniffer && (local->net_type == INFRA)
2031 && !(local->sparm.b4.a_acting_as_ap_status)) {
2032 authenticate(local);
2033 }
2034 local->card_status = CARD_ACQ_COMPLETE;
2035 } else {
2036 local->card_status = CARD_ACQ_FAILED;
2037
2038 del_timer(&local->timer);
2039 local->timer.expires = jiffies + HZ * 5;
2040 local->timer.data = (long)local;
2041 if (status == CCS_START_NETWORK) {
2042 dev_dbg(&link->dev,
2043 "ray_cs interrupt network \"%s\" start failed\n",
2044 local->sparm.b4.a_current_ess_id);
2045 local->timer.function = &start_net;
2046 } else {
2047 dev_dbg(&link->dev,
2048 "ray_cs interrupt network \"%s\" join failed\n",
2049 local->sparm.b4.a_current_ess_id);
2050 local->timer.function = &join_net;
2051 }
2052 add_timer(&local->timer);
2053 }
2054 break;
2055 case CCS_START_ASSOCIATION:
2056 if (status == CCS_COMMAND_COMPLETE) {
2057 local->card_status = CARD_ASSOC_COMPLETE;
2058 dev_dbg(&link->dev, "ray_cs association successful\n");
2059 } else {
2060 dev_dbg(&link->dev, "ray_cs association failed,\n");
2061 local->card_status = CARD_ASSOC_FAILED;
2062 join_net((u_long) local);
2063 }
2064 break;
2065 case CCS_TX_REQUEST:
2066 if (status == CCS_COMMAND_COMPLETE) {
2067 dev_dbg(&link->dev,
2068 "ray_cs interrupt tx request complete\n");
2069 } else {
2070 dev_dbg(&link->dev,
2071 "ray_cs interrupt tx request failed\n");
2072 }
2073 if (!sniffer)
2074 netif_start_queue(dev);
2075 netif_wake_queue(dev);
2076 break;
2077 case CCS_TEST_MEMORY:
2078 dev_dbg(&link->dev, "ray_cs interrupt mem test done\n");
2079 break;
2080 case CCS_SHUTDOWN:
2081 dev_dbg(&link->dev,
2082 "ray_cs interrupt Unexpected CCS returned - Shutdown\n");
2083 break;
2084 case CCS_DUMP_MEMORY:
2085 dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n");
2086 break;
2087 case CCS_START_TIMER:
2088 dev_dbg(&link->dev,
2089 "ray_cs interrupt DING - raylink timer expired\n");
2090 break;
2091 default:
2092 dev_dbg(&link->dev,
2093 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",
2094 rcsindex, cmd);
2095 }
2096 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
2097 } else { /* It's an RCS */
2098
2099 prcs = rcs_base(local) + rcsindex;
2100
2101 switch (readb(&prcs->interrupt_id)) {
2102 case PROCESS_RX_PACKET:
2103 ray_rx(dev, local, prcs);
2104 break;
2105 case REJOIN_NET_COMPLETE:
2106 dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n");
2107 local->card_status = CARD_ACQ_COMPLETE;
2108 /* do we need to clear tx buffers CCS's? */
2109 if (local->sparm.b4.a_network_type == ADHOC) {
2110 if (!sniffer)
2111 netif_start_queue(dev);
2112 } else {
2113 memcpy_fromio(&local->bss_id,
2114 prcs->var.rejoin_net_complete.
2115 bssid, ADDRLEN);
2116 dev_dbg(&link->dev,
2117 "ray_cs new BSSID = %02x%02x%02x%02x%02x%02x\n",
2118 local->bss_id[0], local->bss_id[1],
2119 local->bss_id[2], local->bss_id[3],
2120 local->bss_id[4], local->bss_id[5]);
2121 if (!sniffer)
2122 authenticate(local);
2123 }
2124 break;
2125 case ROAMING_INITIATED:
2126 dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n");
2127 netif_stop_queue(dev);
2128 local->card_status = CARD_DOING_ACQ;
2129 break;
2130 case JAPAN_CALL_SIGN_RXD:
2131 dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n");
2132 break;
2133 default:
2134 dev_dbg(&link->dev,
2135 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",
2136 rcsindex,
2137 (unsigned int)readb(&prcs->interrupt_id));
2138 break;
2139 }
2140 writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2141 }
2142 clear_interrupt(local);
2143 return IRQ_HANDLED;
2144 } /* ray_interrupt */
2145
2146 /*===========================================================================*/
2147 static void ray_rx(struct net_device *dev, ray_dev_t *local,
2148 struct rcs __iomem *prcs)
2149 {
2150 int rx_len;
2151 unsigned int pkt_addr;
2152 void __iomem *pmsg;
2153 pr_debug("ray_rx process rx packet\n");
2154
2155 /* Calculate address of packet within Rx buffer */
2156 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2157 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2158 /* Length of first packet fragment */
2159 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2160 + readb(&prcs->var.rx_packet.rx_data_length[1]);
2161
2162 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2163 pmsg = local->rmem + pkt_addr;
2164 switch (readb(pmsg)) {
2165 case DATA_TYPE:
2166 pr_debug("ray_rx data type\n");
2167 rx_data(dev, prcs, pkt_addr, rx_len);
2168 break;
2169 case AUTHENTIC_TYPE:
2170 pr_debug("ray_rx authentic type\n");
2171 if (sniffer)
2172 rx_data(dev, prcs, pkt_addr, rx_len);
2173 else
2174 rx_authenticate(local, prcs, pkt_addr, rx_len);
2175 break;
2176 case DEAUTHENTIC_TYPE:
2177 pr_debug("ray_rx deauth type\n");
2178 if (sniffer)
2179 rx_data(dev, prcs, pkt_addr, rx_len);
2180 else
2181 rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2182 break;
2183 case NULL_MSG_TYPE:
2184 pr_debug("ray_cs rx NULL msg\n");
2185 break;
2186 case BEACON_TYPE:
2187 pr_debug("ray_rx beacon type\n");
2188 if (sniffer)
2189 rx_data(dev, prcs, pkt_addr, rx_len);
2190
2191 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr,
2192 rx_len < sizeof(struct beacon_rx) ?
2193 rx_len : sizeof(struct beacon_rx));
2194
2195 local->beacon_rxed = 1;
2196 /* Get the statistics so the card counters never overflow */
2197 ray_get_stats(dev);
2198 break;
2199 default:
2200 pr_debug("ray_cs unknown pkt type %2x\n",
2201 (unsigned int)readb(pmsg));
2202 break;
2203 }
2204
2205 } /* end ray_rx */
2206
2207 /*===========================================================================*/
2208 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
2209 unsigned int pkt_addr, int rx_len)
2210 {
2211 struct sk_buff *skb = NULL;
2212 struct rcs __iomem *prcslink = prcs;
2213 ray_dev_t *local = netdev_priv(dev);
2214 UCHAR *rx_ptr;
2215 int total_len;
2216 int tmp;
2217 #ifdef WIRELESS_SPY
2218 int siglev = local->last_rsl;
2219 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */
2220 #endif
2221
2222 if (!sniffer) {
2223 if (translate) {
2224 /* TBD length needs fixing for translated header */
2225 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2226 rx_len >
2227 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2228 FCS_LEN)) {
2229 pr_debug(
2230 "ray_cs invalid packet length %d received\n",
2231 rx_len);
2232 return;
2233 }
2234 } else { /* encapsulated ethernet */
2235
2236 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2237 rx_len >
2238 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2239 FCS_LEN)) {
2240 pr_debug(
2241 "ray_cs invalid packet length %d received\n",
2242 rx_len);
2243 return;
2244 }
2245 }
2246 }
2247 pr_debug("ray_cs rx_data packet\n");
2248 /* If fragmented packet, verify sizes of fragments add up */
2249 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2250 pr_debug("ray_cs rx'ed fragment\n");
2251 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2252 + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2253 total_len = tmp;
2254 prcslink = prcs;
2255 do {
2256 tmp -=
2257 (readb(&prcslink->var.rx_packet.rx_data_length[0])
2258 << 8)
2259 + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2260 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index)
2261 == 0xFF || tmp < 0)
2262 break;
2263 prcslink = rcs_base(local)
2264 + readb(&prcslink->link_field);
2265 } while (1);
2266
2267 if (tmp < 0) {
2268 pr_debug(
2269 "ray_cs rx_data fragment lengths don't add up\n");
2270 local->stats.rx_dropped++;
2271 release_frag_chain(local, prcs);
2272 return;
2273 }
2274 } else { /* Single unfragmented packet */
2275 total_len = rx_len;
2276 }
2277
2278 skb = dev_alloc_skb(total_len + 5);
2279 if (skb == NULL) {
2280 pr_debug("ray_cs rx_data could not allocate skb\n");
2281 local->stats.rx_dropped++;
2282 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2283 release_frag_chain(local, prcs);
2284 return;
2285 }
2286 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */
2287
2288 pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len,
2289 rx_len);
2290
2291 /************************/
2292 /* Reserve enough room for the whole damn packet. */
2293 rx_ptr = skb_put(skb, total_len);
2294 /* Copy the whole packet to sk_buff */
2295 rx_ptr +=
2296 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2297 /* Get source address */
2298 #ifdef WIRELESS_SPY
2299 skb_copy_from_linear_data_offset(skb,
2300 offsetof(struct mac_header, addr_2),
2301 linksrcaddr, ETH_ALEN);
2302 #endif
2303 /* Now, deal with encapsulation/translation/sniffer */
2304 if (!sniffer) {
2305 if (!translate) {
2306 /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2307 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2308 skb_pull(skb, RX_MAC_HEADER_LENGTH);
2309 } else {
2310 /* Do translation */
2311 untranslate(local, skb, total_len);
2312 }
2313 } else { /* sniffer mode, so just pass whole packet */
2314 };
2315
2316 /************************/
2317 /* Now pick up the rest of the fragments if any */
2318 tmp = 17;
2319 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2320 prcslink = prcs;
2321 pr_debug("ray_cs rx_data in fragment loop\n");
2322 do {
2323 prcslink = rcs_base(local)
2324 +
2325 readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2326 rx_len =
2327 ((readb(&prcslink->var.rx_packet.rx_data_length[0])
2328 << 8)
2329 +
2330 readb(&prcslink->var.rx_packet.rx_data_length[1]))
2331 & RX_BUFF_END;
2332 pkt_addr =
2333 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) <<
2334 8)
2335 + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2336 & RX_BUFF_END;
2337
2338 rx_ptr +=
2339 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2340
2341 } while (tmp-- &&
2342 readb(&prcslink->var.rx_packet.next_frag_rcs_index) !=
2343 0xFF);
2344 release_frag_chain(local, prcs);
2345 }
2346
2347 skb->protocol = eth_type_trans(skb, dev);
2348 netif_rx(skb);
2349 local->stats.rx_packets++;
2350 local->stats.rx_bytes += total_len;
2351
2352 /* Gather signal strength per address */
2353 #ifdef WIRELESS_SPY
2354 /* For the Access Point or the node having started the ad-hoc net
2355 * note : ad-hoc work only in some specific configurations, but we
2356 * kludge in ray_get_wireless_stats... */
2357 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) {
2358 /* Update statistics */
2359 /*local->wstats.qual.qual = none ? */
2360 local->wstats.qual.level = siglev;
2361 /*local->wstats.qual.noise = none ? */
2362 local->wstats.qual.updated = 0x2;
2363 }
2364 /* Now, update the spy stuff */
2365 {
2366 struct iw_quality wstats;
2367 wstats.level = siglev;
2368 /* wstats.noise = none ? */
2369 /* wstats.qual = none ? */
2370 wstats.updated = 0x2;
2371 /* Update spy records */
2372 wireless_spy_update(dev, linksrcaddr, &wstats);
2373 }
2374 #endif /* WIRELESS_SPY */
2375 } /* end rx_data */
2376
2377 /*===========================================================================*/
2378 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2379 {
2380 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH);
2381 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2382 __be16 type = *(__be16 *) psnap->ethertype;
2383 int delta;
2384 struct ethhdr *peth;
2385 UCHAR srcaddr[ADDRLEN];
2386 UCHAR destaddr[ADDRLEN];
2387 static UCHAR org_bridge[3] = { 0, 0, 0xf8 };
2388 static UCHAR org_1042[3] = { 0, 0, 0 };
2389
2390 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2391 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2392
2393 #if 0
2394 if {
2395 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
2396 DUMP_PREFIX_NONE, 16, 1,
2397 skb->data, 64, true);
2398 printk(KERN_DEBUG
2399 "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2400 ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
2401 psnap->org[0], psnap->org[1], psnap->org[2]);
2402 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data);
2403 }
2404 #endif
2405
2406 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2407 /* not a snap type so leave it alone */
2408 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2409 psnap->dsap, psnap->ssap, psnap->ctrl);
2410
2411 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2412 peth = (struct ethhdr *)(skb->data + delta);
2413 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2414 } else { /* Its a SNAP */
2415 if (memcmp(psnap->org, org_bridge, 3) == 0) {
2416 /* EtherII and nuke the LLC */
2417 pr_debug("ray_cs untranslate Bridge encap\n");
2418 delta = RX_MAC_HEADER_LENGTH
2419 + sizeof(struct snaphdr_t) - ETH_HLEN;
2420 peth = (struct ethhdr *)(skb->data + delta);
2421 peth->h_proto = type;
2422 } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2423 switch (ntohs(type)) {
2424 case ETH_P_IPX:
2425 case ETH_P_AARP:
2426 pr_debug("ray_cs untranslate RFC IPX/AARP\n");
2427 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2428 peth = (struct ethhdr *)(skb->data + delta);
2429 peth->h_proto =
2430 htons(len - RX_MAC_HEADER_LENGTH);
2431 break;
2432 default:
2433 pr_debug("ray_cs untranslate RFC default\n");
2434 delta = RX_MAC_HEADER_LENGTH +
2435 sizeof(struct snaphdr_t) - ETH_HLEN;
2436 peth = (struct ethhdr *)(skb->data + delta);
2437 peth->h_proto = type;
2438 break;
2439 }
2440 } else {
2441 printk("ray_cs untranslate very confused by packet\n");
2442 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2443 peth = (struct ethhdr *)(skb->data + delta);
2444 peth->h_proto = type;
2445 }
2446 }
2447 /* TBD reserve skb_reserve(skb, delta); */
2448 skb_pull(skb, delta);
2449 pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta,
2450 skb->data);
2451 memcpy(peth->h_dest, destaddr, ADDRLEN);
2452 memcpy(peth->h_source, srcaddr, ADDRLEN);
2453 #if 0
2454 {
2455 int i;
2456 printk(KERN_DEBUG "skb->data after untranslate:");
2457 for (i = 0; i < 64; i++)
2458 printk("%02x ", skb->data[i]);
2459 printk("\n");
2460 }
2461 #endif
2462 } /* end untranslate */
2463
2464 /*===========================================================================*/
2465 /* Copy data from circular receive buffer to PC memory.
2466 * dest = destination address in PC memory
2467 * pkt_addr = source address in receive buffer
2468 * len = length of packet to copy
2469 */
2470 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr,
2471 int length)
2472 {
2473 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2474 if (wrap_bytes <= 0) {
2475 memcpy_fromio(dest, local->rmem + pkt_addr, length);
2476 } else { /* Packet wrapped in circular buffer */
2477
2478 memcpy_fromio(dest, local->rmem + pkt_addr,
2479 length - wrap_bytes);
2480 memcpy_fromio(dest + length - wrap_bytes, local->rmem,
2481 wrap_bytes);
2482 }
2483 return length;
2484 }
2485
2486 /*===========================================================================*/
2487 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs)
2488 {
2489 struct rcs __iomem *prcslink = prcs;
2490 int tmp = 17;
2491 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2492
2493 while (tmp--) {
2494 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2495 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2496 pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n",
2497 rcsindex);
2498 break;
2499 }
2500 prcslink = rcs_base(local) + rcsindex;
2501 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2502 }
2503 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2504 }
2505
2506 /*===========================================================================*/
2507 static void authenticate(ray_dev_t *local)
2508 {
2509 struct pcmcia_device *link = local->finder;
2510 dev_dbg(&link->dev, "ray_cs Starting authentication.\n");
2511 if (!(pcmcia_dev_present(link))) {
2512 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n");
2513 return;
2514 }
2515
2516 del_timer(&local->timer);
2517 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2518 local->timer.function = &join_net;
2519 } else {
2520 local->timer.function = &authenticate_timeout;
2521 }
2522 local->timer.expires = jiffies + HZ * 2;
2523 local->timer.data = (long)local;
2524 add_timer(&local->timer);
2525 local->authentication_state = AWAITING_RESPONSE;
2526 } /* end authenticate */
2527
2528 /*===========================================================================*/
2529 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2530 unsigned int pkt_addr, int rx_len)
2531 {
2532 UCHAR buff[256];
2533 struct rx_msg *msg = (struct rx_msg *)buff;
2534
2535 del_timer(&local->timer);
2536
2537 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2538 /* if we are trying to get authenticated */
2539 if (local->sparm.b4.a_network_type == ADHOC) {
2540 pr_debug("ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n",
2541 msg->var[0], msg->var[1], msg->var[2], msg->var[3],
2542 msg->var[4], msg->var[5]);
2543 if (msg->var[2] == 1) {
2544 pr_debug("ray_cs Sending authentication response.\n");
2545 if (!build_auth_frame
2546 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2547 local->authentication_state = NEED_TO_AUTH;
2548 memcpy(local->auth_id, msg->mac.addr_2,
2549 ADDRLEN);
2550 }
2551 }
2552 } else { /* Infrastructure network */
2553
2554 if (local->authentication_state == AWAITING_RESPONSE) {
2555 /* Verify authentication sequence #2 and success */
2556 if (msg->var[2] == 2) {
2557 if ((msg->var[3] | msg->var[4]) == 0) {
2558 pr_debug("Authentication successful\n");
2559 local->card_status = CARD_AUTH_COMPLETE;
2560 associate(local);
2561 local->authentication_state =
2562 AUTHENTICATED;
2563 } else {
2564 pr_debug("Authentication refused\n");
2565 local->card_status = CARD_AUTH_REFUSED;
2566 join_net((u_long) local);
2567 local->authentication_state =
2568 UNAUTHENTICATED;
2569 }
2570 }
2571 }
2572 }
2573
2574 } /* end rx_authenticate */
2575
2576 /*===========================================================================*/
2577 static void associate(ray_dev_t *local)
2578 {
2579 struct ccs __iomem *pccs;
2580 struct pcmcia_device *link = local->finder;
2581 struct net_device *dev = link->priv;
2582 int ccsindex;
2583 if (!(pcmcia_dev_present(link))) {
2584 dev_dbg(&link->dev, "ray_cs associate - device not present\n");
2585 return;
2586 }
2587 /* If no tx buffers available, return */
2588 if ((ccsindex = get_free_ccs(local)) < 0) {
2589 /* TBD should never be here but... what if we are? */
2590 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n");
2591 return;
2592 }
2593 dev_dbg(&link->dev, "ray_cs Starting association with access point\n");
2594 pccs = ccs_base(local) + ccsindex;
2595 /* fill in the CCS */
2596 writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2597 /* Interrupt the firmware to process the command */
2598 if (interrupt_ecf(local, ccsindex)) {
2599 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
2600 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2601
2602 del_timer(&local->timer);
2603 local->timer.expires = jiffies + HZ * 2;
2604 local->timer.data = (long)local;
2605 local->timer.function = &join_net;
2606 add_timer(&local->timer);
2607 local->card_status = CARD_ASSOC_FAILED;
2608 return;
2609 }
2610 if (!sniffer)
2611 netif_start_queue(dev);
2612
2613 } /* end associate */
2614
2615 /*===========================================================================*/
2616 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2617 unsigned int pkt_addr, int rx_len)
2618 {
2619 /* UCHAR buff[256];
2620 struct rx_msg *msg = (struct rx_msg *)buff;
2621 */
2622 pr_debug("Deauthentication frame received\n");
2623 local->authentication_state = UNAUTHENTICATED;
2624 /* Need to reauthenticate or rejoin depending on reason code */
2625 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2626 */
2627 }
2628
2629 /*===========================================================================*/
2630 static void clear_interrupt(ray_dev_t *local)
2631 {
2632 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2633 }
2634
2635 /*===========================================================================*/
2636 #ifdef CONFIG_PROC_FS
2637 #define MAXDATA (PAGE_SIZE - 80)
2638
2639 static char *card_status[] = {
2640 "Card inserted - uninitialized", /* 0 */
2641 "Card not downloaded", /* 1 */
2642 "Waiting for download parameters", /* 2 */
2643 "Card doing acquisition", /* 3 */
2644 "Acquisition complete", /* 4 */
2645 "Authentication complete", /* 5 */
2646 "Association complete", /* 6 */
2647 "???", "???", "???", "???", /* 7 8 9 10 undefined */
2648 "Card init error", /* 11 */
2649 "Download parameters error", /* 12 */
2650 "???", /* 13 */
2651 "Acquisition failed", /* 14 */
2652 "Authentication refused", /* 15 */
2653 "Association failed" /* 16 */
2654 };
2655
2656 static char *nettype[] = { "Adhoc", "Infra " };
2657 static char *framing[] = { "Encapsulation", "Translation" }
2658
2659 ;
2660 /*===========================================================================*/
2661 static int ray_cs_proc_show(struct seq_file *m, void *v)
2662 {
2663 /* Print current values which are not available via other means
2664 * eg ifconfig
2665 */
2666 int i;
2667 struct pcmcia_device *link;
2668 struct net_device *dev;
2669 ray_dev_t *local;
2670 UCHAR *p;
2671 struct freq_hop_element *pfh;
2672 UCHAR c[33];
2673
2674 link = this_device;
2675 if (!link)
2676 return 0;
2677 dev = (struct net_device *)link->priv;
2678 if (!dev)
2679 return 0;
2680 local = netdev_priv(dev);
2681 if (!local)
2682 return 0;
2683
2684 seq_puts(m, "Raylink Wireless LAN driver status\n");
2685 seq_printf(m, "%s\n", rcsid);
2686 /* build 4 does not report version, and field is 0x55 after memtest */
2687 seq_puts(m, "Firmware version = ");
2688 if (local->fw_ver == 0x55)
2689 seq_puts(m, "4 - Use dump_cis for more details\n");
2690 else
2691 seq_printf(m, "%2d.%02d.%02d\n",
2692 local->fw_ver, local->fw_bld, local->fw_var);
2693
2694 for (i = 0; i < 32; i++)
2695 c[i] = local->sparm.b5.a_current_ess_id[i];
2696 c[32] = 0;
2697 seq_printf(m, "%s network ESSID = \"%s\"\n",
2698 nettype[local->sparm.b5.a_network_type], c);
2699
2700 p = local->bss_id;
2701 seq_printf(m, "BSSID = %pM\n", p);
2702
2703 seq_printf(m, "Country code = %d\n",
2704 local->sparm.b5.a_curr_country_code);
2705
2706 i = local->card_status;
2707 if (i < 0)
2708 i = 10;
2709 if (i > 16)
2710 i = 10;
2711 seq_printf(m, "Card status = %s\n", card_status[i]);
2712
2713 seq_printf(m, "Framing mode = %s\n", framing[translate]);
2714
2715 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl);
2716
2717 if (local->beacon_rxed) {
2718 /* Pull some fields out of last beacon received */
2719 seq_printf(m, "Beacon Interval = %d Kus\n",
2720 local->last_bcn.beacon_intvl[0]
2721 + 256 * local->last_bcn.beacon_intvl[1]);
2722
2723 p = local->last_bcn.elements;
2724 if (p[0] == C_ESSID_ELEMENT_ID)
2725 p += p[1] + 2;
2726 else {
2727 seq_printf(m,
2728 "Parse beacon failed at essid element id = %d\n",
2729 p[0]);
2730 return 0;
2731 }
2732
2733 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2734 seq_puts(m, "Supported rate codes = ");
2735 for (i = 2; i < p[1] + 2; i++)
2736 seq_printf(m, "0x%02x ", p[i]);
2737 seq_putc(m, '\n');
2738 p += p[1] + 2;
2739 } else {
2740 seq_puts(m, "Parse beacon failed at rates element\n");
2741 return 0;
2742 }
2743
2744 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2745 pfh = (struct freq_hop_element *)p;
2746 seq_printf(m, "Hop dwell = %d Kus\n",
2747 pfh->dwell_time[0] +
2748 256 * pfh->dwell_time[1]);
2749 seq_printf(m, "Hop set = %d\n",
2750 pfh->hop_set);
2751 seq_printf(m, "Hop pattern = %d\n",
2752 pfh->hop_pattern);
2753 seq_printf(m, "Hop index = %d\n",
2754 pfh->hop_index);
2755 p += p[1] + 2;
2756 } else {
2757 seq_puts(m,
2758 "Parse beacon failed at FH param element\n");
2759 return 0;
2760 }
2761 } else {
2762 seq_puts(m, "No beacons received\n");
2763 }
2764 return 0;
2765 }
2766
2767 static int ray_cs_proc_open(struct inode *inode, struct file *file)
2768 {
2769 return single_open(file, ray_cs_proc_show, NULL);
2770 }
2771
2772 static const struct file_operations ray_cs_proc_fops = {
2773 .owner = THIS_MODULE,
2774 .open = ray_cs_proc_open,
2775 .read = seq_read,
2776 .llseek = seq_lseek,
2777 .release = single_release,
2778 };
2779 #endif
2780 /*===========================================================================*/
2781 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2782 {
2783 int addr;
2784 struct ccs __iomem *pccs;
2785 struct tx_msg __iomem *ptx;
2786 int ccsindex;
2787
2788 /* If no tx buffers available, return */
2789 if ((ccsindex = get_free_tx_ccs(local)) < 0) {
2790 pr_debug("ray_cs send authenticate - No free tx ccs\n");
2791 return -1;
2792 }
2793
2794 pccs = ccs_base(local) + ccsindex;
2795
2796 /* Address in card space */
2797 addr = TX_BUF_BASE + (ccsindex << 11);
2798 /* fill in the CCS */
2799 writeb(CCS_TX_REQUEST, &pccs->cmd);
2800 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2801 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2802 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2803 writeb(TX_AUTHENTICATE_LENGTH_LSB,
2804 pccs->var.tx_request.tx_data_length + 1);
2805 writeb(0, &pccs->var.tx_request.pow_sav_mode);
2806
2807 ptx = local->sram + addr;
2808 /* fill in the mac header */
2809 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2810 writeb(0, &ptx->mac.frame_ctl_2);
2811
2812 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2813 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2814 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2815
2816 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2817 memset_io(ptx->var, 0, 6);
2818 writeb(auth_type & 0xff, ptx->var + 2);
2819
2820 /* Interrupt the firmware to process the command */
2821 if (interrupt_ecf(local, ccsindex)) {
2822 pr_debug(
2823 "ray_cs send authentication request failed - ECF not ready for intr\n");
2824 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2825 return -1;
2826 }
2827 return 0;
2828 } /* End build_auth_frame */
2829
2830 /*===========================================================================*/
2831 #ifdef CONFIG_PROC_FS
2832 static ssize_t ray_cs_essid_proc_write(struct file *file,
2833 const char __user *buffer, size_t count, loff_t *pos)
2834 {
2835 static char proc_essid[33];
2836 unsigned int len = count;
2837
2838 if (len > 32)
2839 len = 32;
2840 memset(proc_essid, 0, 33);
2841 if (copy_from_user(proc_essid, buffer, len))
2842 return -EFAULT;
2843 essid = proc_essid;
2844 return count;
2845 }
2846
2847 static const struct file_operations ray_cs_essid_proc_fops = {
2848 .owner = THIS_MODULE,
2849 .write = ray_cs_essid_proc_write,
2850 };
2851
2852 static ssize_t int_proc_write(struct file *file, const char __user *buffer,
2853 size_t count, loff_t *pos)
2854 {
2855 static char proc_number[10];
2856 char *p;
2857 int nr, len;
2858
2859 if (!count)
2860 return 0;
2861
2862 if (count > 9)
2863 return -EINVAL;
2864 if (copy_from_user(proc_number, buffer, count))
2865 return -EFAULT;
2866 p = proc_number;
2867 nr = 0;
2868 len = count;
2869 do {
2870 unsigned int c = *p - '0';
2871 if (c > 9)
2872 return -EINVAL;
2873 nr = nr * 10 + c;
2874 p++;
2875 } while (--len);
2876 *(int *)PDE(file->f_path.dentry->d_inode)->data = nr;
2877 return count;
2878 }
2879
2880 static const struct file_operations int_proc_fops = {
2881 .owner = THIS_MODULE,
2882 .write = int_proc_write,
2883 };
2884 #endif
2885
2886 static struct pcmcia_device_id ray_ids[] = {
2887 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2888 PCMCIA_DEVICE_NULL,
2889 };
2890
2891 MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2892
2893 static struct pcmcia_driver ray_driver = {
2894 .owner = THIS_MODULE,
2895 .drv = {
2896 .name = "ray_cs",
2897 },
2898 .probe = ray_probe,
2899 .remove = ray_detach,
2900 .id_table = ray_ids,
2901 .suspend = ray_suspend,
2902 .resume = ray_resume,
2903 };
2904
2905 static int __init init_ray_cs(void)
2906 {
2907 int rc;
2908
2909 pr_debug("%s\n", rcsid);
2910 rc = pcmcia_register_driver(&ray_driver);
2911 pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n",
2912 rc);
2913
2914 #ifdef CONFIG_PROC_FS
2915 proc_mkdir("driver/ray_cs", NULL);
2916
2917 proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops);
2918 proc_create("driver/ray_cs/essid", S_IWUSR, NULL, &ray_cs_essid_proc_fops);
2919 proc_create_data("driver/ray_cs/net_type", S_IWUSR, NULL, &int_proc_fops, &net_type);
2920 proc_create_data("driver/ray_cs/translate", S_IWUSR, NULL, &int_proc_fops, &translate);
2921 #endif
2922 if (translate != 0)
2923 translate = 1;
2924 return 0;
2925 } /* init_ray_cs */
2926
2927 /*===========================================================================*/
2928
2929 static void __exit exit_ray_cs(void)
2930 {
2931 pr_debug("ray_cs: cleanup_module\n");
2932
2933 #ifdef CONFIG_PROC_FS
2934 remove_proc_entry("driver/ray_cs/ray_cs", NULL);
2935 remove_proc_entry("driver/ray_cs/essid", NULL);
2936 remove_proc_entry("driver/ray_cs/net_type", NULL);
2937 remove_proc_entry("driver/ray_cs/translate", NULL);
2938 remove_proc_entry("driver/ray_cs", NULL);
2939 #endif
2940
2941 pcmcia_unregister_driver(&ray_driver);
2942 } /* exit_ray_cs */
2943
2944 module_init(init_ray_cs);
2945 module_exit(exit_ray_cs);
2946
2947 /*===========================================================================*/
kernel-based virtual machine