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, see <http://www.gnu.org/licenses/>.
21 *
22 * Changes:
23 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
24 * - reorganize kmallocs in ray_attach, checking all for failure
25 * and releasing the previous allocations if one fails
26 *
27 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003
28 * - Audit copy_to_user in ioctl(SIOCGIWESSID)
29 *
30 =============================================================================*/
31
32 #include <linux/module.h>
33 #include <linux/kernel.h>
34 #include <linux/proc_fs.h>
35 #include <linux/ptrace.h>
36 #include <linux/seq_file.h>
37 #include <linux/string.h>
38 #include <linux/timer.h>
39 #include <linux/init.h>
40 #include <linux/netdevice.h>
41 #include <linux/etherdevice.h>
42 #include <linux/if_arp.h>
43 #include <linux/ioport.h>
44 #include <linux/skbuff.h>
45 #include <linux/ieee80211.h>
46
47 #include <pcmcia/cistpl.h>
48 #include <pcmcia/cisreg.h>
49 #include <pcmcia/ds.h>
50
51 #include <linux/wireless.h>
52 #include <net/iw_handler.h>
53
54 #include <asm/io.h>
55 #include <asm/byteorder.h>
56 #include <linux/uaccess.h>
57
58 /* Warning : these stuff will slow down the driver... */
59 #define WIRELESS_SPY /* Enable spying addresses */
60 /* Definitions we need for spy */
61 typedef struct iw_statistics iw_stats;
62 typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */
63
64 #include "rayctl.h"
65 #include "ray_cs.h"
66
67
68 /** Prototypes based on PCMCIA skeleton driver *******************************/
69 static int ray_config(struct pcmcia_device *link);
70 static void ray_release(struct pcmcia_device *link);
71 static void ray_detach(struct pcmcia_device *p_dev);
72
73 /***** Prototypes indicated by device structure ******************************/
74 static int ray_dev_close(struct net_device *dev);
75 static int ray_dev_config(struct net_device *dev, struct ifmap *map);
76 static struct net_device_stats *ray_get_stats(struct net_device *dev);
77 static int ray_dev_init(struct net_device *dev);
78
79 static int ray_open(struct net_device *dev);
80 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
81 struct net_device *dev);
82 static void set_multicast_list(struct net_device *dev);
83 static void ray_update_multi_list(struct net_device *dev, int all);
84 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
85 unsigned char *data, int len);
86 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
87 UCHAR msg_type, unsigned char *data);
88 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
89 static iw_stats *ray_get_wireless_stats(struct net_device *dev);
90 static const struct iw_handler_def ray_handler_def;
91
92 /***** Prototypes for raylink functions **************************************/
93 static void authenticate(ray_dev_t *local);
94 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
95 static void authenticate_timeout(u_long);
96 static int get_free_ccs(ray_dev_t *local);
97 static int get_free_tx_ccs(ray_dev_t *local);
98 static void init_startup_params(ray_dev_t *local);
99 static int parse_addr(char *in_str, UCHAR *out);
100 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type);
101 static int ray_init(struct net_device *dev);
102 static int interrupt_ecf(ray_dev_t *local, int ccs);
103 static void ray_reset(struct net_device *dev);
104 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
105 static void verify_dl_startup(u_long);
106
107 /* Prototypes for interrpt time functions **********************************/
108 static irqreturn_t ray_interrupt(int reg, void *dev_id);
109 static void clear_interrupt(ray_dev_t *local);
110 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
111 unsigned int pkt_addr, int rx_len);
112 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
113 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
114 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
115 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
116 unsigned int pkt_addr, int rx_len);
117 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
118 unsigned int pkt_addr, int rx_len);
119 static void associate(ray_dev_t *local);
120
121 /* Card command functions */
122 static int dl_startup_params(struct net_device *dev);
123 static void join_net(u_long local);
124 static void start_net(u_long local);
125 /* void start_net(ray_dev_t *local); */
126
127 /*===========================================================================*/
128 /* Parameters that can be set with 'insmod' */
129
130 /* ADHOC=0, Infrastructure=1 */
131 static int net_type = ADHOC;
132
133 /* Hop dwell time in Kus (1024 us units defined by 802.11) */
134 static int hop_dwell = 128;
135
136 /* Beacon period in Kus */
137 static int beacon_period = 256;
138
139 /* power save mode (0 = off, 1 = save power) */
140 static int psm;
141
142 /* String for network's Extended Service Set ID. 32 Characters max */
143 static char *essid;
144
145 /* Default to encapsulation unless translation requested */
146 static bool translate = true;
147
148 static int country = USA;
149
150 static int sniffer;
151
152 static int bc;
153
154 /* 48 bit physical card address if overriding card's real physical
155 * address is required. Since IEEE 802.11 addresses are 48 bits
156 * like ethernet, an int can't be used, so a string is used. To
157 * allow use of addresses starting with a decimal digit, the first
158 * character must be a letter and will be ignored. This letter is
159 * followed by up to 12 hex digits which are the address. If less
160 * than 12 digits are used, the address will be left filled with 0's.
161 * Note that bit 0 of the first byte is the broadcast bit, and evil
162 * things will happen if it is not 0 in a card address.
163 */
164 static char *phy_addr = NULL;
165
166 static unsigned int ray_mem_speed = 500;
167
168 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
169 static struct pcmcia_device *this_device = NULL;
170
171 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
172 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
173 MODULE_LICENSE("GPL");
174
175 module_param(net_type, int, 0);
176 module_param(hop_dwell, int, 0);
177 module_param(beacon_period, int, 0);
178 module_param(psm, int, 0);
179 module_param(essid, charp, 0);
180 module_param(translate, bool, 0);
181 module_param(country, int, 0);
182 module_param(sniffer, int, 0);
183 module_param(bc, int, 0);
184 module_param(phy_addr, charp, 0);
185 module_param(ray_mem_speed, int, 0);
186
187 static const UCHAR b5_default_startup_parms[] = {
188 0, 0, /* Adhoc station */
189 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
190 0, 0, 0, 0, 0, 0, 0, 0,
191 0, 0, 0, 0, 0, 0, 0, 0,
192 0, 0, 0, 0, 0, 0, 0, 0,
193 1, 0, /* Active scan, CA Mode */
194 0, 0, 0, 0, 0, 0, /* No default MAC addr */
195 0x7f, 0xff, /* Frag threshold */
196 0x00, 0x80, /* Hop time 128 Kus */
197 0x01, 0x00, /* Beacon period 256 Kus */
198 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
199 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */
200 0x7f, 0xff, /* RTS threshold */
201 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
202 0x05, /* assoc resp timeout thresh */
203 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */
204 0, /* Promiscuous mode */
205 0x0c, 0x0bd, /* Unique word */
206 0x32, /* Slot time */
207 0xff, 0xff, /* roam-low snr, low snr count */
208 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
209 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */
210 /* b4 - b5 differences start here */
211 0x00, 0x3f, /* CW max */
212 0x00, 0x0f, /* CW min */
213 0x04, 0x08, /* Noise gain, limit offset */
214 0x28, 0x28, /* det rssi, med busy offsets */
215 7, /* det sync thresh */
216 0, 2, 2, /* test mode, min, max */
217 0, /* allow broadcast SSID probe resp */
218 0, 0, /* privacy must start, can join */
219 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */
220 };
221
222 static const UCHAR b4_default_startup_parms[] = {
223 0, 0, /* Adhoc station */
224 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
225 0, 0, 0, 0, 0, 0, 0, 0,
226 0, 0, 0, 0, 0, 0, 0, 0,
227 0, 0, 0, 0, 0, 0, 0, 0,
228 1, 0, /* Active scan, CA Mode */
229 0, 0, 0, 0, 0, 0, /* No default MAC addr */
230 0x7f, 0xff, /* Frag threshold */
231 0x02, 0x00, /* Hop time */
232 0x00, 0x01, /* Beacon period */
233 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
234 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */
235 0x7f, 0xff, /* RTS threshold */
236 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
237 0x05, /* assoc resp timeout thresh */
238 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */
239 0, /* Promiscuous mode */
240 0x0c, 0x0bd, /* Unique word */
241 0x4e, /* Slot time (TBD seems wrong) */
242 0xff, 0xff, /* roam-low snr, low snr count */
243 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
244 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */
245 /* b4 - b5 differences start here */
246 0x3f, 0x0f, /* CW max, min */
247 0x04, 0x08, /* Noise gain, limit offset */
248 0x28, 0x28, /* det rssi, med busy offsets */
249 7, /* det sync thresh */
250 0, 2, 2, /* test mode, min, max */
251 0, /* rx/tx delay */
252 0, 0, 0, 0, 0, 0, /* current BSS id */
253 0 /* hop set */
254 };
255
256 /*===========================================================================*/
257 static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 };
258
259 static const char hop_pattern_length[] = { 1,
260 USA_HOP_MOD, EUROPE_HOP_MOD,
261 JAPAN_HOP_MOD, KOREA_HOP_MOD,
262 SPAIN_HOP_MOD, FRANCE_HOP_MOD,
263 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
264 JAPAN_TEST_HOP_MOD
265 };
266
267 static const char rcsid[] =
268 "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
269
270 static const struct net_device_ops ray_netdev_ops = {
271 .ndo_init = ray_dev_init,
272 .ndo_open = ray_open,
273 .ndo_stop = ray_dev_close,
274 .ndo_start_xmit = ray_dev_start_xmit,
275 .ndo_set_config = ray_dev_config,
276 .ndo_get_stats = ray_get_stats,
277 .ndo_set_rx_mode = set_multicast_list,
278 .ndo_set_mac_address = eth_mac_addr,
279 .ndo_validate_addr = eth_validate_addr,
280 };
281
ray_probe(struct pcmcia_device * p_dev)282 static int ray_probe(struct pcmcia_device *p_dev)
283 {
284 ray_dev_t *local;
285 struct net_device *dev;
286
287 dev_dbg(&p_dev->dev, "ray_attach()\n");
288
289 /* Allocate space for private device-specific data */
290 dev = alloc_etherdev(sizeof(ray_dev_t));
291 if (!dev)
292 goto fail_alloc_dev;
293
294 local = netdev_priv(dev);
295 local->finder = p_dev;
296
297 /* The io structure describes IO port mapping. None used here */
298 p_dev->resource[0]->end = 0;
299 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
300
301 /* General socket configuration */
302 p_dev->config_flags |= CONF_ENABLE_IRQ;
303 p_dev->config_index = 1;
304
305 p_dev->priv = dev;
306
307 local->finder = p_dev;
308 local->card_status = CARD_INSERTED;
309 local->authentication_state = UNAUTHENTICATED;
310 local->num_multi = 0;
311 dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n",
312 p_dev, dev, local, &ray_interrupt);
313
314 /* Raylink entries in the device structure */
315 dev->netdev_ops = &ray_netdev_ops;
316 dev->wireless_handlers = &ray_handler_def;
317 #ifdef WIRELESS_SPY
318 local->wireless_data.spy_data = &local->spy_data;
319 dev->wireless_data = &local->wireless_data;
320 #endif /* WIRELESS_SPY */
321
322
323 dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n");
324 netif_stop_queue(dev);
325
326 init_timer(&local->timer);
327
328 this_device = p_dev;
329 return ray_config(p_dev);
330
331 fail_alloc_dev:
332 return -ENOMEM;
333 } /* ray_attach */
334
ray_detach(struct pcmcia_device * link)335 static void ray_detach(struct pcmcia_device *link)
336 {
337 struct net_device *dev;
338 ray_dev_t *local;
339
340 dev_dbg(&link->dev, "ray_detach\n");
341
342 this_device = NULL;
343 dev = link->priv;
344
345 ray_release(link);
346
347 local = netdev_priv(dev);
348 del_timer_sync(&local->timer);
349
350 if (link->priv) {
351 unregister_netdev(dev);
352 free_netdev(dev);
353 }
354 dev_dbg(&link->dev, "ray_cs ray_detach ending\n");
355 } /* ray_detach */
356
357 #define MAX_TUPLE_SIZE 128
ray_config(struct pcmcia_device * link)358 static int ray_config(struct pcmcia_device *link)
359 {
360 int ret = 0;
361 int i;
362 struct net_device *dev = (struct net_device *)link->priv;
363 ray_dev_t *local = netdev_priv(dev);
364
365 dev_dbg(&link->dev, "ray_config\n");
366
367 /* Determine card type and firmware version */
368 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n",
369 link->prod_id[0] ? link->prod_id[0] : " ",
370 link->prod_id[1] ? link->prod_id[1] : " ",
371 link->prod_id[2] ? link->prod_id[2] : " ",
372 link->prod_id[3] ? link->prod_id[3] : " ");
373
374 /* Now allocate an interrupt line. Note that this does not
375 actually assign a handler to the interrupt.
376 */
377 ret = pcmcia_request_irq(link, ray_interrupt);
378 if (ret)
379 goto failed;
380 dev->irq = link->irq;
381
382 ret = pcmcia_enable_device(link);
383 if (ret)
384 goto failed;
385
386 /*** Set up 32k window for shared memory (transmit and control) ************/
387 link->resource[2]->flags |= WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
388 link->resource[2]->start = 0;
389 link->resource[2]->end = 0x8000;
390 ret = pcmcia_request_window(link, link->resource[2], ray_mem_speed);
391 if (ret)
392 goto failed;
393 ret = pcmcia_map_mem_page(link, link->resource[2], 0);
394 if (ret)
395 goto failed;
396 local->sram = ioremap(link->resource[2]->start,
397 resource_size(link->resource[2]));
398
399 /*** Set up 16k window for shared memory (receive buffer) ***************/
400 link->resource[3]->flags |=
401 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
402 link->resource[3]->start = 0;
403 link->resource[3]->end = 0x4000;
404 ret = pcmcia_request_window(link, link->resource[3], ray_mem_speed);
405 if (ret)
406 goto failed;
407 ret = pcmcia_map_mem_page(link, link->resource[3], 0x8000);
408 if (ret)
409 goto failed;
410 local->rmem = ioremap(link->resource[3]->start,
411 resource_size(link->resource[3]));
412
413 /*** Set up window for attribute memory ***********************************/
414 link->resource[4]->flags |=
415 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
416 link->resource[4]->start = 0;
417 link->resource[4]->end = 0x1000;
418 ret = pcmcia_request_window(link, link->resource[4], ray_mem_speed);
419 if (ret)
420 goto failed;
421 ret = pcmcia_map_mem_page(link, link->resource[4], 0);
422 if (ret)
423 goto failed;
424 local->amem = ioremap(link->resource[4]->start,
425 resource_size(link->resource[4]));
426
427 dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram);
428 dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem);
429 dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem);
430 if (ray_init(dev) < 0) {
431 ray_release(link);
432 return -ENODEV;
433 }
434
435 SET_NETDEV_DEV(dev, &link->dev);
436 i = register_netdev(dev);
437 if (i != 0) {
438 printk("ray_config register_netdev() failed\n");
439 ray_release(link);
440 return i;
441 }
442
443 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n",
444 dev->name, dev->irq, dev->dev_addr);
445
446 return 0;
447
448 failed:
449 ray_release(link);
450 return -ENODEV;
451 } /* ray_config */
452
ccs_base(ray_dev_t * dev)453 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
454 {
455 return dev->sram + CCS_BASE;
456 }
457
rcs_base(ray_dev_t * dev)458 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
459 {
460 /*
461 * This looks nonsensical, since there is a separate
462 * RCS_BASE. But the difference between a "struct rcs"
463 * and a "struct ccs" ends up being in the _index_ off
464 * the base, so the base pointer is the same for both
465 * ccs/rcs.
466 */
467 return dev->sram + CCS_BASE;
468 }
469
470 /*===========================================================================*/
ray_init(struct net_device * dev)471 static int ray_init(struct net_device *dev)
472 {
473 int i;
474 UCHAR *p;
475 struct ccs __iomem *pccs;
476 ray_dev_t *local = netdev_priv(dev);
477 struct pcmcia_device *link = local->finder;
478 dev_dbg(&link->dev, "ray_init(0x%p)\n", dev);
479 if (!(pcmcia_dev_present(link))) {
480 dev_dbg(&link->dev, "ray_init - device not present\n");
481 return -1;
482 }
483
484 local->net_type = net_type;
485 local->sta_type = TYPE_STA;
486
487 /* Copy the startup results to local memory */
488 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,
489 sizeof(struct startup_res_6));
490
491 /* Check Power up test status and get mac address from card */
492 if (local->startup_res.startup_word != 0x80) {
493 printk(KERN_INFO "ray_init ERROR card status = %2x\n",
494 local->startup_res.startup_word);
495 local->card_status = CARD_INIT_ERROR;
496 return -1;
497 }
498
499 local->fw_ver = local->startup_res.firmware_version[0];
500 local->fw_bld = local->startup_res.firmware_version[1];
501 local->fw_var = local->startup_res.firmware_version[2];
502 dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver,
503 local->fw_bld);
504
505 local->tib_length = 0x20;
506 if ((local->fw_ver == 5) && (local->fw_bld >= 30))
507 local->tib_length = local->startup_res.tib_length;
508 dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length);
509 /* Initialize CCS's to buffer free state */
510 pccs = ccs_base(local);
511 for (i = 0; i < NUMBER_OF_CCS; i++) {
512 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
513 }
514 init_startup_params(local);
515
516 /* copy mac address to startup parameters */
517 if (parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) {
518 p = local->sparm.b4.a_mac_addr;
519 } else {
520 memcpy(&local->sparm.b4.a_mac_addr,
521 &local->startup_res.station_addr, ADDRLEN);
522 p = local->sparm.b4.a_mac_addr;
523 }
524
525 clear_interrupt(local); /* Clear any interrupt from the card */
526 local->card_status = CARD_AWAITING_PARAM;
527 dev_dbg(&link->dev, "ray_init ending\n");
528 return 0;
529 } /* ray_init */
530
531 /*===========================================================================*/
532 /* Download startup parameters to the card and command it to read them */
dl_startup_params(struct net_device * dev)533 static int dl_startup_params(struct net_device *dev)
534 {
535 int ccsindex;
536 ray_dev_t *local = netdev_priv(dev);
537 struct ccs __iomem *pccs;
538 struct pcmcia_device *link = local->finder;
539
540 dev_dbg(&link->dev, "dl_startup_params entered\n");
541 if (!(pcmcia_dev_present(link))) {
542 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n");
543 return -1;
544 }
545
546 /* Copy parameters to host to ECF area */
547 if (local->fw_ver == 0x55)
548 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
549 sizeof(struct b4_startup_params));
550 else
551 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
552 sizeof(struct b5_startup_params));
553
554 /* Fill in the CCS fields for the ECF */
555 if ((ccsindex = get_free_ccs(local)) < 0)
556 return -1;
557 local->dl_param_ccs = ccsindex;
558 pccs = ccs_base(local) + ccsindex;
559 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
560 dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n",
561 local->dl_param_ccs);
562 /* Interrupt the firmware to process the command */
563 if (interrupt_ecf(local, ccsindex)) {
564 printk(KERN_INFO "ray dl_startup_params failed - "
565 "ECF not ready for intr\n");
566 local->card_status = CARD_DL_PARAM_ERROR;
567 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
568 return -2;
569 }
570 local->card_status = CARD_DL_PARAM;
571 /* Start kernel timer to wait for dl startup to complete. */
572 local->timer.expires = jiffies + HZ / 2;
573 local->timer.data = (long)local;
574 local->timer.function = verify_dl_startup;
575 add_timer(&local->timer);
576 dev_dbg(&link->dev,
577 "ray_cs dl_startup_params started timer for verify_dl_startup\n");
578 return 0;
579 } /* dl_startup_params */
580
581 /*===========================================================================*/
init_startup_params(ray_dev_t * local)582 static void init_startup_params(ray_dev_t *local)
583 {
584 int i;
585
586 if (country > JAPAN_TEST)
587 country = USA;
588 else if (country < USA)
589 country = USA;
590 /* structure for hop time and beacon period is defined here using
591 * New 802.11D6.1 format. Card firmware is still using old format
592 * until version 6.
593 * Before After
594 * a_hop_time ms byte a_hop_time ms byte
595 * a_hop_time 2s byte a_hop_time ls byte
596 * a_hop_time ls byte a_beacon_period ms byte
597 * a_beacon_period a_beacon_period ls byte
598 *
599 * a_hop_time = uS a_hop_time = KuS
600 * a_beacon_period = hops a_beacon_period = KuS
601 *//* 64ms = 010000 */
602 if (local->fw_ver == 0x55) {
603 memcpy(&local->sparm.b4, b4_default_startup_parms,
604 sizeof(struct b4_startup_params));
605 /* Translate sane kus input values to old build 4/5 format */
606 /* i = hop time in uS truncated to 3 bytes */
607 i = (hop_dwell * 1024) & 0xffffff;
608 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
609 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
610 local->sparm.b4.a_beacon_period[0] = 0;
611 local->sparm.b4.a_beacon_period[1] =
612 ((beacon_period / hop_dwell) - 1) & 0xff;
613 local->sparm.b4.a_curr_country_code = country;
614 local->sparm.b4.a_hop_pattern_length =
615 hop_pattern_length[(int)country] - 1;
616 if (bc) {
617 local->sparm.b4.a_ack_timeout = 0x50;
618 local->sparm.b4.a_sifs = 0x3f;
619 }
620 } else { /* Version 5 uses real kus values */
621 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms,
622 sizeof(struct b5_startup_params));
623
624 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
625 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
626 local->sparm.b5.a_beacon_period[0] =
627 (beacon_period >> 8) & 0xff;
628 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
629 if (psm)
630 local->sparm.b5.a_power_mgt_state = 1;
631 local->sparm.b5.a_curr_country_code = country;
632 local->sparm.b5.a_hop_pattern_length =
633 hop_pattern_length[(int)country];
634 }
635
636 local->sparm.b4.a_network_type = net_type & 0x01;
637 local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
638
639 if (essid != NULL)
640 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
641 } /* init_startup_params */
642
643 /*===========================================================================*/
verify_dl_startup(u_long data)644 static void verify_dl_startup(u_long data)
645 {
646 ray_dev_t *local = (ray_dev_t *) data;
647 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
648 UCHAR status;
649 struct pcmcia_device *link = local->finder;
650
651 if (!(pcmcia_dev_present(link))) {
652 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n");
653 return;
654 }
655 #if 0
656 {
657 int i;
658 printk(KERN_DEBUG
659 "verify_dl_startup parameters sent via ccs %d:\n",
660 local->dl_param_ccs);
661 for (i = 0; i < sizeof(struct b5_startup_params); i++) {
662 printk(" %2x",
663 (unsigned int)readb(local->sram +
664 HOST_TO_ECF_BASE + i));
665 }
666 printk("\n");
667 }
668 #endif
669
670 status = readb(&pccs->buffer_status);
671 if (status != CCS_BUFFER_FREE) {
672 printk(KERN_INFO
673 "Download startup params failed. Status = %d\n",
674 status);
675 local->card_status = CARD_DL_PARAM_ERROR;
676 return;
677 }
678 if (local->sparm.b4.a_network_type == ADHOC)
679 start_net((u_long) local);
680 else
681 join_net((u_long) local);
682 } /* end verify_dl_startup */
683
684 /*===========================================================================*/
685 /* Command card to start a network */
start_net(u_long data)686 static void start_net(u_long data)
687 {
688 ray_dev_t *local = (ray_dev_t *) data;
689 struct ccs __iomem *pccs;
690 int ccsindex;
691 struct pcmcia_device *link = local->finder;
692 if (!(pcmcia_dev_present(link))) {
693 dev_dbg(&link->dev, "ray_cs start_net - device not present\n");
694 return;
695 }
696 /* Fill in the CCS fields for the ECF */
697 if ((ccsindex = get_free_ccs(local)) < 0)
698 return;
699 pccs = ccs_base(local) + ccsindex;
700 writeb(CCS_START_NETWORK, &pccs->cmd);
701 writeb(0, &pccs->var.start_network.update_param);
702 /* Interrupt the firmware to process the command */
703 if (interrupt_ecf(local, ccsindex)) {
704 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n");
705 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
706 return;
707 }
708 local->card_status = CARD_DOING_ACQ;
709 } /* end start_net */
710
711 /*===========================================================================*/
712 /* Command card to join a network */
join_net(u_long data)713 static void join_net(u_long data)
714 {
715 ray_dev_t *local = (ray_dev_t *) data;
716
717 struct ccs __iomem *pccs;
718 int ccsindex;
719 struct pcmcia_device *link = local->finder;
720
721 if (!(pcmcia_dev_present(link))) {
722 dev_dbg(&link->dev, "ray_cs join_net - device not present\n");
723 return;
724 }
725 /* Fill in the CCS fields for the ECF */
726 if ((ccsindex = get_free_ccs(local)) < 0)
727 return;
728 pccs = ccs_base(local) + ccsindex;
729 writeb(CCS_JOIN_NETWORK, &pccs->cmd);
730 writeb(0, &pccs->var.join_network.update_param);
731 writeb(0, &pccs->var.join_network.net_initiated);
732 /* Interrupt the firmware to process the command */
733 if (interrupt_ecf(local, ccsindex)) {
734 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n");
735 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
736 return;
737 }
738 local->card_status = CARD_DOING_ACQ;
739 }
740
741
ray_release(struct pcmcia_device * link)742 static void ray_release(struct pcmcia_device *link)
743 {
744 struct net_device *dev = link->priv;
745 ray_dev_t *local = netdev_priv(dev);
746
747 dev_dbg(&link->dev, "ray_release\n");
748
749 del_timer(&local->timer);
750
751 iounmap(local->sram);
752 iounmap(local->rmem);
753 iounmap(local->amem);
754 pcmcia_disable_device(link);
755
756 dev_dbg(&link->dev, "ray_release ending\n");
757 }
758
ray_suspend(struct pcmcia_device * link)759 static int ray_suspend(struct pcmcia_device *link)
760 {
761 struct net_device *dev = link->priv;
762
763 if (link->open)
764 netif_device_detach(dev);
765
766 return 0;
767 }
768
ray_resume(struct pcmcia_device * link)769 static int ray_resume(struct pcmcia_device *link)
770 {
771 struct net_device *dev = link->priv;
772
773 if (link->open) {
774 ray_reset(dev);
775 netif_device_attach(dev);
776 }
777
778 return 0;
779 }
780
781 /*===========================================================================*/
ray_dev_init(struct net_device * dev)782 static int ray_dev_init(struct net_device *dev)
783 {
784 #ifdef RAY_IMMEDIATE_INIT
785 int i;
786 #endif /* RAY_IMMEDIATE_INIT */
787 ray_dev_t *local = netdev_priv(dev);
788 struct pcmcia_device *link = local->finder;
789
790 dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev);
791 if (!(pcmcia_dev_present(link))) {
792 dev_dbg(&link->dev, "ray_dev_init - device not present\n");
793 return -1;
794 }
795 #ifdef RAY_IMMEDIATE_INIT
796 /* Download startup parameters */
797 if ((i = dl_startup_params(dev)) < 0) {
798 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
799 "returns 0x%x\n", i);
800 return -1;
801 }
802 #else /* RAY_IMMEDIATE_INIT */
803 /* Postpone the card init so that we can still configure the card,
804 * for example using the Wireless Extensions. The init will happen
805 * in ray_open() - Jean II */
806 dev_dbg(&link->dev,
807 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
808 local->card_status);
809 #endif /* RAY_IMMEDIATE_INIT */
810
811 /* copy mac and broadcast addresses to linux device */
812 memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
813 eth_broadcast_addr(dev->broadcast);
814
815 dev_dbg(&link->dev, "ray_dev_init ending\n");
816 return 0;
817 }
818
819 /*===========================================================================*/
ray_dev_config(struct net_device * dev,struct ifmap * map)820 static int ray_dev_config(struct net_device *dev, struct ifmap *map)
821 {
822 ray_dev_t *local = netdev_priv(dev);
823 struct pcmcia_device *link = local->finder;
824 /* Dummy routine to satisfy device structure */
825 dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map);
826 if (!(pcmcia_dev_present(link))) {
827 dev_dbg(&link->dev, "ray_dev_config - device not present\n");
828 return -1;
829 }
830
831 return 0;
832 }
833
834 /*===========================================================================*/
ray_dev_start_xmit(struct sk_buff * skb,struct net_device * dev)835 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
836 struct net_device *dev)
837 {
838 ray_dev_t *local = netdev_priv(dev);
839 struct pcmcia_device *link = local->finder;
840 short length = skb->len;
841
842 if (!pcmcia_dev_present(link)) {
843 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n");
844 dev_kfree_skb(skb);
845 return NETDEV_TX_OK;
846 }
847
848 dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
849 if (local->authentication_state == NEED_TO_AUTH) {
850 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n");
851 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
852 local->authentication_state = AUTHENTICATED;
853 netif_stop_queue(dev);
854 return NETDEV_TX_BUSY;
855 }
856 }
857
858 if (length < ETH_ZLEN) {
859 if (skb_padto(skb, ETH_ZLEN))
860 return NETDEV_TX_OK;
861 length = ETH_ZLEN;
862 }
863 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) {
864 case XMIT_NO_CCS:
865 case XMIT_NEED_AUTH:
866 netif_stop_queue(dev);
867 return NETDEV_TX_BUSY;
868 case XMIT_NO_INTR:
869 case XMIT_MSG_BAD:
870 case XMIT_OK:
871 default:
872 dev_kfree_skb(skb);
873 }
874
875 return NETDEV_TX_OK;
876 } /* ray_dev_start_xmit */
877
878 /*===========================================================================*/
ray_hw_xmit(unsigned char * data,int len,struct net_device * dev,UCHAR msg_type)879 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
880 UCHAR msg_type)
881 {
882 ray_dev_t *local = netdev_priv(dev);
883 struct ccs __iomem *pccs;
884 int ccsindex;
885 int offset;
886 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */
887 short int addr; /* Address of xmit buffer in card space */
888
889 pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev);
890 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) {
891 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",
892 len);
893 return XMIT_MSG_BAD;
894 }
895 switch (ccsindex = get_free_tx_ccs(local)) {
896 case ECCSBUSY:
897 pr_debug("ray_hw_xmit tx_ccs table busy\n");
898 case ECCSFULL:
899 pr_debug("ray_hw_xmit No free tx ccs\n");
900 case ECARDGONE:
901 netif_stop_queue(dev);
902 return XMIT_NO_CCS;
903 default:
904 break;
905 }
906 addr = TX_BUF_BASE + (ccsindex << 11);
907
908 if (msg_type == DATA_TYPE) {
909 local->stats.tx_bytes += len;
910 local->stats.tx_packets++;
911 }
912
913 ptx = local->sram + addr;
914
915 ray_build_header(local, ptx, msg_type, data);
916 if (translate) {
917 offset = translate_frame(local, ptx, data, len);
918 } else { /* Encapsulate frame */
919 /* TBD TIB length will move address of ptx->var */
920 memcpy_toio(&ptx->var, data, len);
921 offset = 0;
922 }
923
924 /* fill in the CCS */
925 pccs = ccs_base(local) + ccsindex;
926 len += TX_HEADER_LENGTH + offset;
927 writeb(CCS_TX_REQUEST, &pccs->cmd);
928 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
929 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
930 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
931 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
932 /* TBD still need psm_cam? */
933 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
934 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
935 writeb(0, &pccs->var.tx_request.antenna);
936 pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n",
937 local->net_default_tx_rate);
938
939 /* Interrupt the firmware to process the command */
940 if (interrupt_ecf(local, ccsindex)) {
941 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n");
942 /* TBD very inefficient to copy packet to buffer, and then not
943 send it, but the alternative is to queue the messages and that
944 won't be done for a while. Maybe set tbusy until a CCS is free?
945 */
946 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
947 return XMIT_NO_INTR;
948 }
949 return XMIT_OK;
950 } /* end ray_hw_xmit */
951
952 /*===========================================================================*/
translate_frame(ray_dev_t * local,struct tx_msg __iomem * ptx,unsigned char * data,int len)953 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
954 unsigned char *data, int len)
955 {
956 __be16 proto = ((struct ethhdr *)data)->h_proto;
957 if (ntohs(proto) >= ETH_P_802_3_MIN) { /* DIX II ethernet frame */
958 pr_debug("ray_cs translate_frame DIX II\n");
959 /* Copy LLC header to card buffer */
960 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
961 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc),
962 (UCHAR *) &proto, 2);
963 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
964 /* This is the selective translation table, only 2 entries */
965 writeb(0xf8,
966 &((struct snaphdr_t __iomem *)ptx->var)->org[3]);
967 }
968 /* Copy body of ethernet packet without ethernet header */
969 memcpy_toio((void __iomem *)&ptx->var +
970 sizeof(struct snaphdr_t), data + ETH_HLEN,
971 len - ETH_HLEN);
972 return (int)sizeof(struct snaphdr_t) - ETH_HLEN;
973 } else { /* already 802 type, and proto is length */
974 pr_debug("ray_cs translate_frame 802\n");
975 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
976 pr_debug("ray_cs translate_frame evil IPX\n");
977 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
978 return 0 - ETH_HLEN;
979 }
980 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
981 return 0 - ETH_HLEN;
982 }
983 /* TBD do other frame types */
984 } /* end translate_frame */
985
986 /*===========================================================================*/
ray_build_header(ray_dev_t * local,struct tx_msg __iomem * ptx,UCHAR msg_type,unsigned char * data)987 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
988 UCHAR msg_type, unsigned char *data)
989 {
990 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
991 /*** IEEE 802.11 Address field assignments *************
992 TODS FROMDS addr_1 addr_2 addr_3 addr_4
993 Adhoc 0 0 dest src (terminal) BSSID N/A
994 AP to Terminal 0 1 dest AP(BSSID) source N/A
995 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A
996 AP to AP 1 1 dest AP src AP dest source
997 *******************************************************/
998 if (local->net_type == ADHOC) {
999 writeb(0, &ptx->mac.frame_ctl_2);
1000 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest,
1001 2 * ADDRLEN);
1002 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
1003 } else { /* infrastructure */
1004
1005 if (local->sparm.b4.a_acting_as_ap_status) {
1006 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
1007 memcpy_toio(ptx->mac.addr_1,
1008 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1009 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
1010 memcpy_toio(ptx->mac.addr_3,
1011 ((struct ethhdr *)data)->h_source, ADDRLEN);
1012 } else { /* Terminal */
1013
1014 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
1015 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1016 memcpy_toio(ptx->mac.addr_2,
1017 ((struct ethhdr *)data)->h_source, ADDRLEN);
1018 memcpy_toio(ptx->mac.addr_3,
1019 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1020 }
1021 }
1022 } /* end encapsulate_frame */
1023
1024 /*====================================================================*/
1025
1026 /*------------------------------------------------------------------*/
1027 /*
1028 * Wireless Handler : get protocol name
1029 */
ray_get_name(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1030 static int ray_get_name(struct net_device *dev, struct iw_request_info *info,
1031 union iwreq_data *wrqu, char *extra)
1032 {
1033 strcpy(wrqu->name, "IEEE 802.11-FH");
1034 return 0;
1035 }
1036
1037 /*------------------------------------------------------------------*/
1038 /*
1039 * Wireless Handler : set frequency
1040 */
ray_set_freq(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1041 static int ray_set_freq(struct net_device *dev, struct iw_request_info *info,
1042 union iwreq_data *wrqu, char *extra)
1043 {
1044 ray_dev_t *local = netdev_priv(dev);
1045 int err = -EINPROGRESS; /* Call commit handler */
1046
1047 /* Reject if card is already initialised */
1048 if (local->card_status != CARD_AWAITING_PARAM)
1049 return -EBUSY;
1050
1051 /* Setting by channel number */
1052 if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0))
1053 err = -EOPNOTSUPP;
1054 else
1055 local->sparm.b5.a_hop_pattern = wrqu->freq.m;
1056
1057 return err;
1058 }
1059
1060 /*------------------------------------------------------------------*/
1061 /*
1062 * Wireless Handler : get frequency
1063 */
ray_get_freq(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1064 static int ray_get_freq(struct net_device *dev, struct iw_request_info *info,
1065 union iwreq_data *wrqu, char *extra)
1066 {
1067 ray_dev_t *local = netdev_priv(dev);
1068
1069 wrqu->freq.m = local->sparm.b5.a_hop_pattern;
1070 wrqu->freq.e = 0;
1071 return 0;
1072 }
1073
1074 /*------------------------------------------------------------------*/
1075 /*
1076 * Wireless Handler : set ESSID
1077 */
ray_set_essid(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1078 static int ray_set_essid(struct net_device *dev, struct iw_request_info *info,
1079 union iwreq_data *wrqu, char *extra)
1080 {
1081 ray_dev_t *local = netdev_priv(dev);
1082
1083 /* Reject if card is already initialised */
1084 if (local->card_status != CARD_AWAITING_PARAM)
1085 return -EBUSY;
1086
1087 /* Check if we asked for `any' */
1088 if (wrqu->essid.flags == 0)
1089 /* Corey : can you do that ? */
1090 return -EOPNOTSUPP;
1091
1092 /* Check the size of the string */
1093 if (wrqu->essid.length > IW_ESSID_MAX_SIZE)
1094 return -E2BIG;
1095
1096 /* Set the ESSID in the card */
1097 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1098 memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length);
1099
1100 return -EINPROGRESS; /* Call commit handler */
1101 }
1102
1103 /*------------------------------------------------------------------*/
1104 /*
1105 * Wireless Handler : get ESSID
1106 */
ray_get_essid(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1107 static int ray_get_essid(struct net_device *dev, struct iw_request_info *info,
1108 union iwreq_data *wrqu, char *extra)
1109 {
1110 ray_dev_t *local = netdev_priv(dev);
1111 UCHAR tmp[IW_ESSID_MAX_SIZE + 1];
1112
1113 /* Get the essid that was set */
1114 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1115 memcpy(tmp, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1116 tmp[IW_ESSID_MAX_SIZE] = '\0';
1117
1118 /* Push it out ! */
1119 wrqu->essid.length = strlen(tmp);
1120 wrqu->essid.flags = 1; /* active */
1121
1122 return 0;
1123 }
1124
1125 /*------------------------------------------------------------------*/
1126 /*
1127 * Wireless Handler : get AP address
1128 */
ray_get_wap(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1129 static int ray_get_wap(struct net_device *dev, struct iw_request_info *info,
1130 union iwreq_data *wrqu, char *extra)
1131 {
1132 ray_dev_t *local = netdev_priv(dev);
1133
1134 memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN);
1135 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1136
1137 return 0;
1138 }
1139
1140 /*------------------------------------------------------------------*/
1141 /*
1142 * Wireless Handler : set Bit-Rate
1143 */
ray_set_rate(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1144 static int ray_set_rate(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 /* Reject if card is already initialised */
1150 if (local->card_status != CARD_AWAITING_PARAM)
1151 return -EBUSY;
1152
1153 /* Check if rate is in range */
1154 if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000))
1155 return -EINVAL;
1156
1157 /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1158 if ((local->fw_ver == 0x55) && /* Please check */
1159 (wrqu->bitrate.value == 2000000))
1160 local->net_default_tx_rate = 3;
1161 else
1162 local->net_default_tx_rate = wrqu->bitrate.value / 500000;
1163
1164 return 0;
1165 }
1166
1167 /*------------------------------------------------------------------*/
1168 /*
1169 * Wireless Handler : get Bit-Rate
1170 */
ray_get_rate(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1171 static int ray_get_rate(struct net_device *dev, struct iw_request_info *info,
1172 union iwreq_data *wrqu, char *extra)
1173 {
1174 ray_dev_t *local = netdev_priv(dev);
1175
1176 if (local->net_default_tx_rate == 3)
1177 wrqu->bitrate.value = 2000000; /* Hum... */
1178 else
1179 wrqu->bitrate.value = local->net_default_tx_rate * 500000;
1180 wrqu->bitrate.fixed = 0; /* We are in auto mode */
1181
1182 return 0;
1183 }
1184
1185 /*------------------------------------------------------------------*/
1186 /*
1187 * Wireless Handler : set RTS threshold
1188 */
ray_set_rts(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1189 static int ray_set_rts(struct net_device *dev, struct iw_request_info *info,
1190 union iwreq_data *wrqu, char *extra)
1191 {
1192 ray_dev_t *local = netdev_priv(dev);
1193 int rthr = wrqu->rts.value;
1194
1195 /* Reject if card is already initialised */
1196 if (local->card_status != CARD_AWAITING_PARAM)
1197 return -EBUSY;
1198
1199 /* if(wrq->u.rts.fixed == 0) we should complain */
1200 if (wrqu->rts.disabled)
1201 rthr = 32767;
1202 else {
1203 if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */
1204 return -EINVAL;
1205 }
1206 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1207 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1208
1209 return -EINPROGRESS; /* Call commit handler */
1210 }
1211
1212 /*------------------------------------------------------------------*/
1213 /*
1214 * Wireless Handler : get RTS threshold
1215 */
ray_get_rts(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1216 static int ray_get_rts(struct net_device *dev, struct iw_request_info *info,
1217 union iwreq_data *wrqu, char *extra)
1218 {
1219 ray_dev_t *local = netdev_priv(dev);
1220
1221 wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8)
1222 + local->sparm.b5.a_rts_threshold[1];
1223 wrqu->rts.disabled = (wrqu->rts.value == 32767);
1224 wrqu->rts.fixed = 1;
1225
1226 return 0;
1227 }
1228
1229 /*------------------------------------------------------------------*/
1230 /*
1231 * Wireless Handler : set Fragmentation threshold
1232 */
ray_set_frag(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1233 static int ray_set_frag(struct net_device *dev, struct iw_request_info *info,
1234 union iwreq_data *wrqu, char *extra)
1235 {
1236 ray_dev_t *local = netdev_priv(dev);
1237 int fthr = wrqu->frag.value;
1238
1239 /* Reject if card is already initialised */
1240 if (local->card_status != CARD_AWAITING_PARAM)
1241 return -EBUSY;
1242
1243 /* if(wrq->u.frag.fixed == 0) should complain */
1244 if (wrqu->frag.disabled)
1245 fthr = 32767;
1246 else {
1247 if ((fthr < 256) || (fthr > 2347)) /* To check out ! */
1248 return -EINVAL;
1249 }
1250 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1251 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1252
1253 return -EINPROGRESS; /* Call commit handler */
1254 }
1255
1256 /*------------------------------------------------------------------*/
1257 /*
1258 * Wireless Handler : get Fragmentation threshold
1259 */
ray_get_frag(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1260 static int ray_get_frag(struct net_device *dev, struct iw_request_info *info,
1261 union iwreq_data *wrqu, char *extra)
1262 {
1263 ray_dev_t *local = netdev_priv(dev);
1264
1265 wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8)
1266 + local->sparm.b5.a_frag_threshold[1];
1267 wrqu->frag.disabled = (wrqu->frag.value == 32767);
1268 wrqu->frag.fixed = 1;
1269
1270 return 0;
1271 }
1272
1273 /*------------------------------------------------------------------*/
1274 /*
1275 * Wireless Handler : set Mode of Operation
1276 */
ray_set_mode(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1277 static int ray_set_mode(struct net_device *dev, struct iw_request_info *info,
1278 union iwreq_data *wrqu, char *extra)
1279 {
1280 ray_dev_t *local = netdev_priv(dev);
1281 int err = -EINPROGRESS; /* Call commit handler */
1282 char card_mode = 1;
1283
1284 /* Reject if card is already initialised */
1285 if (local->card_status != CARD_AWAITING_PARAM)
1286 return -EBUSY;
1287
1288 switch (wrqu->mode) {
1289 case IW_MODE_ADHOC:
1290 card_mode = 0;
1291 /* Fall through */
1292 case IW_MODE_INFRA:
1293 local->sparm.b5.a_network_type = card_mode;
1294 break;
1295 default:
1296 err = -EINVAL;
1297 }
1298
1299 return err;
1300 }
1301
1302 /*------------------------------------------------------------------*/
1303 /*
1304 * Wireless Handler : get Mode of Operation
1305 */
ray_get_mode(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1306 static int ray_get_mode(struct net_device *dev, struct iw_request_info *info,
1307 union iwreq_data *wrqu, char *extra)
1308 {
1309 ray_dev_t *local = netdev_priv(dev);
1310
1311 if (local->sparm.b5.a_network_type)
1312 wrqu->mode = IW_MODE_INFRA;
1313 else
1314 wrqu->mode = IW_MODE_ADHOC;
1315
1316 return 0;
1317 }
1318
1319 /*------------------------------------------------------------------*/
1320 /*
1321 * Wireless Handler : get range info
1322 */
ray_get_range(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1323 static int ray_get_range(struct net_device *dev, struct iw_request_info *info,
1324 union iwreq_data *wrqu, char *extra)
1325 {
1326 struct iw_range *range = (struct iw_range *)extra;
1327
1328 memset(range, 0, sizeof(struct iw_range));
1329
1330 /* Set the length (very important for backward compatibility) */
1331 wrqu->data.length = sizeof(struct iw_range);
1332
1333 /* Set the Wireless Extension versions */
1334 range->we_version_compiled = WIRELESS_EXT;
1335 range->we_version_source = 9;
1336
1337 /* Set information in the range struct */
1338 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */
1339 range->num_channels = hop_pattern_length[(int)country];
1340 range->num_frequency = 0;
1341 range->max_qual.qual = 0;
1342 range->max_qual.level = 255; /* What's the correct value ? */
1343 range->max_qual.noise = 255; /* Idem */
1344 range->num_bitrates = 2;
1345 range->bitrate[0] = 1000000; /* 1 Mb/s */
1346 range->bitrate[1] = 2000000; /* 2 Mb/s */
1347 return 0;
1348 }
1349
1350 /*------------------------------------------------------------------*/
1351 /*
1352 * Wireless Private Handler : set framing mode
1353 */
ray_set_framing(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1354 static int ray_set_framing(struct net_device *dev, struct iw_request_info *info,
1355 union iwreq_data *wrqu, char *extra)
1356 {
1357 translate = !!*(extra); /* Set framing mode */
1358
1359 return 0;
1360 }
1361
1362 /*------------------------------------------------------------------*/
1363 /*
1364 * Wireless Private Handler : get framing mode
1365 */
ray_get_framing(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1366 static int ray_get_framing(struct net_device *dev, struct iw_request_info *info,
1367 union iwreq_data *wrqu, char *extra)
1368 {
1369 *(extra) = translate;
1370
1371 return 0;
1372 }
1373
1374 /*------------------------------------------------------------------*/
1375 /*
1376 * Wireless Private Handler : get country
1377 */
ray_get_country(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1378 static int ray_get_country(struct net_device *dev, struct iw_request_info *info,
1379 union iwreq_data *wrqu, char *extra)
1380 {
1381 *(extra) = country;
1382
1383 return 0;
1384 }
1385
1386 /*------------------------------------------------------------------*/
1387 /*
1388 * Commit handler : called after a bunch of SET operations
1389 */
ray_commit(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1390 static int ray_commit(struct net_device *dev, struct iw_request_info *info,
1391 union iwreq_data *wrqu, char *extra)
1392 {
1393 return 0;
1394 }
1395
1396 /*------------------------------------------------------------------*/
1397 /*
1398 * Stats handler : return Wireless Stats
1399 */
ray_get_wireless_stats(struct net_device * dev)1400 static iw_stats *ray_get_wireless_stats(struct net_device *dev)
1401 {
1402 ray_dev_t *local = netdev_priv(dev);
1403 struct pcmcia_device *link = local->finder;
1404 struct status __iomem *p = local->sram + STATUS_BASE;
1405
1406 local->wstats.status = local->card_status;
1407 #ifdef WIRELESS_SPY
1408 if ((local->spy_data.spy_number > 0)
1409 && (local->sparm.b5.a_network_type == 0)) {
1410 /* Get it from the first node in spy list */
1411 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1412 local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1413 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1414 local->wstats.qual.updated =
1415 local->spy_data.spy_stat[0].updated;
1416 }
1417 #endif /* WIRELESS_SPY */
1418
1419 if (pcmcia_dev_present(link)) {
1420 local->wstats.qual.noise = readb(&p->rxnoise);
1421 local->wstats.qual.updated |= 4;
1422 }
1423
1424 return &local->wstats;
1425 } /* end ray_get_wireless_stats */
1426
1427 /*------------------------------------------------------------------*/
1428 /*
1429 * Structures to export the Wireless Handlers
1430 */
1431
1432 static const iw_handler ray_handler[] = {
1433 IW_HANDLER(SIOCSIWCOMMIT, ray_commit),
1434 IW_HANDLER(SIOCGIWNAME, ray_get_name),
1435 IW_HANDLER(SIOCSIWFREQ, ray_set_freq),
1436 IW_HANDLER(SIOCGIWFREQ, ray_get_freq),
1437 IW_HANDLER(SIOCSIWMODE, ray_set_mode),
1438 IW_HANDLER(SIOCGIWMODE, ray_get_mode),
1439 IW_HANDLER(SIOCGIWRANGE, ray_get_range),
1440 #ifdef WIRELESS_SPY
1441 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1442 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1443 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1444 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1445 #endif /* WIRELESS_SPY */
1446 IW_HANDLER(SIOCGIWAP, ray_get_wap),
1447 IW_HANDLER(SIOCSIWESSID, ray_set_essid),
1448 IW_HANDLER(SIOCGIWESSID, ray_get_essid),
1449 IW_HANDLER(SIOCSIWRATE, ray_set_rate),
1450 IW_HANDLER(SIOCGIWRATE, ray_get_rate),
1451 IW_HANDLER(SIOCSIWRTS, ray_set_rts),
1452 IW_HANDLER(SIOCGIWRTS, ray_get_rts),
1453 IW_HANDLER(SIOCSIWFRAG, ray_set_frag),
1454 IW_HANDLER(SIOCGIWFRAG, ray_get_frag),
1455 };
1456
1457 #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */
1458 #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */
1459 #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */
1460
1461 static const iw_handler ray_private_handler[] = {
1462 [0] = ray_set_framing,
1463 [1] = ray_get_framing,
1464 [3] = ray_get_country,
1465 };
1466
1467 static const struct iw_priv_args ray_private_args[] = {
1468 /* cmd, set_args, get_args, name */
1469 {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0,
1470 "set_framing"},
1471 {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1472 "get_framing"},
1473 {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1474 "get_country"},
1475 };
1476
1477 static const struct iw_handler_def ray_handler_def = {
1478 .num_standard = ARRAY_SIZE(ray_handler),
1479 .num_private = ARRAY_SIZE(ray_private_handler),
1480 .num_private_args = ARRAY_SIZE(ray_private_args),
1481 .standard = ray_handler,
1482 .private = ray_private_handler,
1483 .private_args = ray_private_args,
1484 .get_wireless_stats = ray_get_wireless_stats,
1485 };
1486
1487 /*===========================================================================*/
ray_open(struct net_device * dev)1488 static int ray_open(struct net_device *dev)
1489 {
1490 ray_dev_t *local = netdev_priv(dev);
1491 struct pcmcia_device *link;
1492 link = local->finder;
1493
1494 dev_dbg(&link->dev, "ray_open('%s')\n", dev->name);
1495
1496 if (link->open == 0)
1497 local->num_multi = 0;
1498 link->open++;
1499
1500 /* If the card is not started, time to start it ! - Jean II */
1501 if (local->card_status == CARD_AWAITING_PARAM) {
1502 int i;
1503
1504 dev_dbg(&link->dev, "ray_open: doing init now !\n");
1505
1506 /* Download startup parameters */
1507 if ((i = dl_startup_params(dev)) < 0) {
1508 printk(KERN_INFO
1509 "ray_dev_init dl_startup_params failed - "
1510 "returns 0x%x\n", i);
1511 return -1;
1512 }
1513 }
1514
1515 if (sniffer)
1516 netif_stop_queue(dev);
1517 else
1518 netif_start_queue(dev);
1519
1520 dev_dbg(&link->dev, "ray_open ending\n");
1521 return 0;
1522 } /* end ray_open */
1523
1524 /*===========================================================================*/
ray_dev_close(struct net_device * dev)1525 static int ray_dev_close(struct net_device *dev)
1526 {
1527 ray_dev_t *local = netdev_priv(dev);
1528 struct pcmcia_device *link;
1529 link = local->finder;
1530
1531 dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name);
1532
1533 link->open--;
1534 netif_stop_queue(dev);
1535
1536 /* In here, we should stop the hardware (stop card from beeing active)
1537 * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1538 * card is closed we can chage its configuration.
1539 * Probably also need a COR reset to get sane state - Jean II */
1540
1541 return 0;
1542 } /* end ray_dev_close */
1543
1544 /*===========================================================================*/
ray_reset(struct net_device * dev)1545 static void ray_reset(struct net_device *dev)
1546 {
1547 pr_debug("ray_reset entered\n");
1548 }
1549
1550 /*===========================================================================*/
1551 /* Cause a firmware interrupt if it is ready for one */
1552 /* Return nonzero if not ready */
interrupt_ecf(ray_dev_t * local,int ccs)1553 static int interrupt_ecf(ray_dev_t *local, int ccs)
1554 {
1555 int i = 50;
1556 struct pcmcia_device *link = local->finder;
1557
1558 if (!(pcmcia_dev_present(link))) {
1559 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n");
1560 return -1;
1561 }
1562 dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs);
1563
1564 while (i &&
1565 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) &
1566 ECF_INTR_SET))
1567 i--;
1568 if (i == 0) {
1569 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n");
1570 return -1;
1571 }
1572 /* Fill the mailbox, then kick the card */
1573 writeb(ccs, local->sram + SCB_BASE);
1574 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1575 return 0;
1576 } /* interrupt_ecf */
1577
1578 /*===========================================================================*/
1579 /* Get next free transmit CCS */
1580 /* Return - index of current tx ccs */
get_free_tx_ccs(ray_dev_t * local)1581 static int get_free_tx_ccs(ray_dev_t *local)
1582 {
1583 int i;
1584 struct ccs __iomem *pccs = ccs_base(local);
1585 struct pcmcia_device *link = local->finder;
1586
1587 if (!(pcmcia_dev_present(link))) {
1588 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n");
1589 return ECARDGONE;
1590 }
1591
1592 if (test_and_set_bit(0, &local->tx_ccs_lock)) {
1593 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n");
1594 return ECCSBUSY;
1595 }
1596
1597 for (i = 0; i < NUMBER_OF_TX_CCS; i++) {
1598 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1599 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1600 writeb(CCS_END_LIST, &(pccs + i)->link);
1601 local->tx_ccs_lock = 0;
1602 return i;
1603 }
1604 }
1605 local->tx_ccs_lock = 0;
1606 dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n");
1607 return ECCSFULL;
1608 } /* get_free_tx_ccs */
1609
1610 /*===========================================================================*/
1611 /* Get next free CCS */
1612 /* Return - index of current ccs */
get_free_ccs(ray_dev_t * local)1613 static int get_free_ccs(ray_dev_t *local)
1614 {
1615 int i;
1616 struct ccs __iomem *pccs = ccs_base(local);
1617 struct pcmcia_device *link = local->finder;
1618
1619 if (!(pcmcia_dev_present(link))) {
1620 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n");
1621 return ECARDGONE;
1622 }
1623 if (test_and_set_bit(0, &local->ccs_lock)) {
1624 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n");
1625 return ECCSBUSY;
1626 }
1627
1628 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1629 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1630 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1631 writeb(CCS_END_LIST, &(pccs + i)->link);
1632 local->ccs_lock = 0;
1633 return i;
1634 }
1635 }
1636 local->ccs_lock = 0;
1637 dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n");
1638 return ECCSFULL;
1639 } /* get_free_ccs */
1640
1641 /*===========================================================================*/
authenticate_timeout(u_long data)1642 static void authenticate_timeout(u_long data)
1643 {
1644 ray_dev_t *local = (ray_dev_t *) data;
1645 del_timer(&local->timer);
1646 printk(KERN_INFO "ray_cs Authentication with access point failed"
1647 " - timeout\n");
1648 join_net((u_long) local);
1649 }
1650
1651 /*===========================================================================*/
parse_addr(char * in_str,UCHAR * out)1652 static int parse_addr(char *in_str, UCHAR *out)
1653 {
1654 int len;
1655 int i, j, k;
1656 int status;
1657
1658 if (in_str == NULL)
1659 return 0;
1660 if ((len = strlen(in_str)) < 2)
1661 return 0;
1662 memset(out, 0, ADDRLEN);
1663
1664 status = 1;
1665 j = len - 1;
1666 if (j > 12)
1667 j = 12;
1668 i = 5;
1669
1670 while (j > 0) {
1671 if ((k = hex_to_bin(in_str[j--])) != -1)
1672 out[i] = k;
1673 else
1674 return 0;
1675
1676 if (j == 0)
1677 break;
1678 if ((k = hex_to_bin(in_str[j--])) != -1)
1679 out[i] += k << 4;
1680 else
1681 return 0;
1682 if (!i--)
1683 break;
1684 }
1685 return status;
1686 }
1687
1688 /*===========================================================================*/
ray_get_stats(struct net_device * dev)1689 static struct net_device_stats *ray_get_stats(struct net_device *dev)
1690 {
1691 ray_dev_t *local = netdev_priv(dev);
1692 struct pcmcia_device *link = local->finder;
1693 struct status __iomem *p = local->sram + STATUS_BASE;
1694 if (!(pcmcia_dev_present(link))) {
1695 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n");
1696 return &local->stats;
1697 }
1698 if (readb(&p->mrx_overflow_for_host)) {
1699 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1700 writeb(0, &p->mrx_overflow);
1701 writeb(0, &p->mrx_overflow_for_host);
1702 }
1703 if (readb(&p->mrx_checksum_error_for_host)) {
1704 local->stats.rx_crc_errors +=
1705 swab16(readw(&p->mrx_checksum_error));
1706 writeb(0, &p->mrx_checksum_error);
1707 writeb(0, &p->mrx_checksum_error_for_host);
1708 }
1709 if (readb(&p->rx_hec_error_for_host)) {
1710 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1711 writeb(0, &p->rx_hec_error);
1712 writeb(0, &p->rx_hec_error_for_host);
1713 }
1714 return &local->stats;
1715 }
1716
1717 /*===========================================================================*/
ray_update_parm(struct net_device * dev,UCHAR objid,UCHAR * value,int len)1718 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value,
1719 int len)
1720 {
1721 ray_dev_t *local = netdev_priv(dev);
1722 struct pcmcia_device *link = local->finder;
1723 int ccsindex;
1724 int i;
1725 struct ccs __iomem *pccs;
1726
1727 if (!(pcmcia_dev_present(link))) {
1728 dev_dbg(&link->dev, "ray_update_parm - device not present\n");
1729 return;
1730 }
1731
1732 if ((ccsindex = get_free_ccs(local)) < 0) {
1733 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n");
1734 return;
1735 }
1736 pccs = ccs_base(local) + ccsindex;
1737 writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1738 writeb(objid, &pccs->var.update_param.object_id);
1739 writeb(1, &pccs->var.update_param.number_objects);
1740 writeb(0, &pccs->var.update_param.failure_cause);
1741 for (i = 0; i < len; i++) {
1742 writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1743 }
1744 /* Interrupt the firmware to process the command */
1745 if (interrupt_ecf(local, ccsindex)) {
1746 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
1747 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1748 }
1749 }
1750
1751 /*===========================================================================*/
ray_update_multi_list(struct net_device * dev,int all)1752 static void ray_update_multi_list(struct net_device *dev, int all)
1753 {
1754 int ccsindex;
1755 struct ccs __iomem *pccs;
1756 ray_dev_t *local = netdev_priv(dev);
1757 struct pcmcia_device *link = local->finder;
1758 void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1759
1760 if (!(pcmcia_dev_present(link))) {
1761 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n");
1762 return;
1763 } else
1764 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev);
1765 if ((ccsindex = get_free_ccs(local)) < 0) {
1766 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n");
1767 return;
1768 }
1769 pccs = ccs_base(local) + ccsindex;
1770 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1771
1772 if (all) {
1773 writeb(0xff, &pccs->var);
1774 local->num_multi = 0xff;
1775 } else {
1776 struct netdev_hw_addr *ha;
1777 int i = 0;
1778
1779 /* Copy the kernel's list of MC addresses to card */
1780 netdev_for_each_mc_addr(ha, dev) {
1781 memcpy_toio(p, ha->addr, ETH_ALEN);
1782 dev_dbg(&link->dev, "ray_update_multi add addr %pm\n",
1783 ha->addr);
1784 p += ETH_ALEN;
1785 i++;
1786 }
1787 if (i > 256 / ADDRLEN)
1788 i = 256 / ADDRLEN;
1789 writeb((UCHAR) i, &pccs->var);
1790 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i);
1791 /* Interrupt the firmware to process the command */
1792 local->num_multi = i;
1793 }
1794 if (interrupt_ecf(local, ccsindex)) {
1795 dev_dbg(&link->dev,
1796 "ray_cs update_multi failed - ECF not ready for intr\n");
1797 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1798 }
1799 } /* end ray_update_multi_list */
1800
1801 /*===========================================================================*/
set_multicast_list(struct net_device * dev)1802 static void set_multicast_list(struct net_device *dev)
1803 {
1804 ray_dev_t *local = netdev_priv(dev);
1805 UCHAR promisc;
1806
1807 pr_debug("ray_cs set_multicast_list(%p)\n", dev);
1808
1809 if (dev->flags & IFF_PROMISC) {
1810 if (local->sparm.b5.a_promiscuous_mode == 0) {
1811 pr_debug("ray_cs set_multicast_list promisc on\n");
1812 local->sparm.b5.a_promiscuous_mode = 1;
1813 promisc = 1;
1814 ray_update_parm(dev, OBJID_promiscuous_mode,
1815 &promisc, sizeof(promisc));
1816 }
1817 } else {
1818 if (local->sparm.b5.a_promiscuous_mode == 1) {
1819 pr_debug("ray_cs set_multicast_list promisc off\n");
1820 local->sparm.b5.a_promiscuous_mode = 0;
1821 promisc = 0;
1822 ray_update_parm(dev, OBJID_promiscuous_mode,
1823 &promisc, sizeof(promisc));
1824 }
1825 }
1826
1827 if (dev->flags & IFF_ALLMULTI)
1828 ray_update_multi_list(dev, 1);
1829 else {
1830 if (local->num_multi != netdev_mc_count(dev))
1831 ray_update_multi_list(dev, 0);
1832 }
1833 } /* end set_multicast_list */
1834
1835 /*=============================================================================
1836 * All routines below here are run at interrupt time.
1837 =============================================================================*/
ray_interrupt(int irq,void * dev_id)1838 static irqreturn_t ray_interrupt(int irq, void *dev_id)
1839 {
1840 struct net_device *dev = (struct net_device *)dev_id;
1841 struct pcmcia_device *link;
1842 ray_dev_t *local;
1843 struct ccs __iomem *pccs;
1844 struct rcs __iomem *prcs;
1845 UCHAR rcsindex;
1846 UCHAR tmp;
1847 UCHAR cmd;
1848 UCHAR status;
1849 UCHAR memtmp[ESSID_SIZE + 1];
1850
1851
1852 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */
1853 return IRQ_NONE;
1854
1855 pr_debug("ray_cs: interrupt for *dev=%p\n", dev);
1856
1857 local = netdev_priv(dev);
1858 link = local->finder;
1859 if (!pcmcia_dev_present(link)) {
1860 pr_debug(
1861 "ray_cs interrupt from device not present or suspended.\n");
1862 return IRQ_NONE;
1863 }
1864 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1865
1866 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
1867 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex);
1868 clear_interrupt(local);
1869 return IRQ_HANDLED;
1870 }
1871 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */
1872 pccs = ccs_base(local) + rcsindex;
1873 cmd = readb(&pccs->cmd);
1874 status = readb(&pccs->buffer_status);
1875 switch (cmd) {
1876 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */
1877 del_timer(&local->timer);
1878 if (status == CCS_COMMAND_COMPLETE) {
1879 dev_dbg(&link->dev,
1880 "ray_cs interrupt download_startup_parameters OK\n");
1881 } else {
1882 dev_dbg(&link->dev,
1883 "ray_cs interrupt download_startup_parameters fail\n");
1884 }
1885 break;
1886 case CCS_UPDATE_PARAMS:
1887 dev_dbg(&link->dev, "ray_cs interrupt update params done\n");
1888 if (status != CCS_COMMAND_COMPLETE) {
1889 tmp =
1890 readb(&pccs->var.update_param.
1891 failure_cause);
1892 dev_dbg(&link->dev,
1893 "ray_cs interrupt update params failed - reason %d\n",
1894 tmp);
1895 }
1896 break;
1897 case CCS_REPORT_PARAMS:
1898 dev_dbg(&link->dev, "ray_cs interrupt report params done\n");
1899 break;
1900 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
1901 dev_dbg(&link->dev,
1902 "ray_cs interrupt CCS Update Multicast List done\n");
1903 break;
1904 case CCS_UPDATE_POWER_SAVINGS_MODE:
1905 dev_dbg(&link->dev,
1906 "ray_cs interrupt update power save mode done\n");
1907 break;
1908 case CCS_START_NETWORK:
1909 case CCS_JOIN_NETWORK:
1910 memcpy(memtmp, local->sparm.b4.a_current_ess_id,
1911 ESSID_SIZE);
1912 memtmp[ESSID_SIZE] = '\0';
1913
1914 if (status == CCS_COMMAND_COMPLETE) {
1915 if (readb
1916 (&pccs->var.start_network.net_initiated) ==
1917 1) {
1918 dev_dbg(&link->dev,
1919 "ray_cs interrupt network \"%s\" started\n",
1920 memtmp);
1921 } else {
1922 dev_dbg(&link->dev,
1923 "ray_cs interrupt network \"%s\" joined\n",
1924 memtmp);
1925 }
1926 memcpy_fromio(&local->bss_id,
1927 pccs->var.start_network.bssid,
1928 ADDRLEN);
1929
1930 if (local->fw_ver == 0x55)
1931 local->net_default_tx_rate = 3;
1932 else
1933 local->net_default_tx_rate =
1934 readb(&pccs->var.start_network.
1935 net_default_tx_rate);
1936 local->encryption =
1937 readb(&pccs->var.start_network.encryption);
1938 if (!sniffer && (local->net_type == INFRA)
1939 && !(local->sparm.b4.a_acting_as_ap_status)) {
1940 authenticate(local);
1941 }
1942 local->card_status = CARD_ACQ_COMPLETE;
1943 } else {
1944 local->card_status = CARD_ACQ_FAILED;
1945
1946 del_timer(&local->timer);
1947 local->timer.expires = jiffies + HZ * 5;
1948 local->timer.data = (long)local;
1949 if (status == CCS_START_NETWORK) {
1950 dev_dbg(&link->dev,
1951 "ray_cs interrupt network \"%s\" start failed\n",
1952 memtmp);
1953 local->timer.function = start_net;
1954 } else {
1955 dev_dbg(&link->dev,
1956 "ray_cs interrupt network \"%s\" join failed\n",
1957 memtmp);
1958 local->timer.function = join_net;
1959 }
1960 add_timer(&local->timer);
1961 }
1962 break;
1963 case CCS_START_ASSOCIATION:
1964 if (status == CCS_COMMAND_COMPLETE) {
1965 local->card_status = CARD_ASSOC_COMPLETE;
1966 dev_dbg(&link->dev, "ray_cs association successful\n");
1967 } else {
1968 dev_dbg(&link->dev, "ray_cs association failed,\n");
1969 local->card_status = CARD_ASSOC_FAILED;
1970 join_net((u_long) local);
1971 }
1972 break;
1973 case CCS_TX_REQUEST:
1974 if (status == CCS_COMMAND_COMPLETE) {
1975 dev_dbg(&link->dev,
1976 "ray_cs interrupt tx request complete\n");
1977 } else {
1978 dev_dbg(&link->dev,
1979 "ray_cs interrupt tx request failed\n");
1980 }
1981 if (!sniffer)
1982 netif_start_queue(dev);
1983 netif_wake_queue(dev);
1984 break;
1985 case CCS_TEST_MEMORY:
1986 dev_dbg(&link->dev, "ray_cs interrupt mem test done\n");
1987 break;
1988 case CCS_SHUTDOWN:
1989 dev_dbg(&link->dev,
1990 "ray_cs interrupt Unexpected CCS returned - Shutdown\n");
1991 break;
1992 case CCS_DUMP_MEMORY:
1993 dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n");
1994 break;
1995 case CCS_START_TIMER:
1996 dev_dbg(&link->dev,
1997 "ray_cs interrupt DING - raylink timer expired\n");
1998 break;
1999 default:
2000 dev_dbg(&link->dev,
2001 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",
2002 rcsindex, cmd);
2003 }
2004 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
2005 } else { /* It's an RCS */
2006
2007 prcs = rcs_base(local) + rcsindex;
2008
2009 switch (readb(&prcs->interrupt_id)) {
2010 case PROCESS_RX_PACKET:
2011 ray_rx(dev, local, prcs);
2012 break;
2013 case REJOIN_NET_COMPLETE:
2014 dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n");
2015 local->card_status = CARD_ACQ_COMPLETE;
2016 /* do we need to clear tx buffers CCS's? */
2017 if (local->sparm.b4.a_network_type == ADHOC) {
2018 if (!sniffer)
2019 netif_start_queue(dev);
2020 } else {
2021 memcpy_fromio(&local->bss_id,
2022 prcs->var.rejoin_net_complete.
2023 bssid, ADDRLEN);
2024 dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n",
2025 local->bss_id);
2026 if (!sniffer)
2027 authenticate(local);
2028 }
2029 break;
2030 case ROAMING_INITIATED:
2031 dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n");
2032 netif_stop_queue(dev);
2033 local->card_status = CARD_DOING_ACQ;
2034 break;
2035 case JAPAN_CALL_SIGN_RXD:
2036 dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n");
2037 break;
2038 default:
2039 dev_dbg(&link->dev,
2040 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",
2041 rcsindex,
2042 (unsigned int)readb(&prcs->interrupt_id));
2043 break;
2044 }
2045 writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2046 }
2047 clear_interrupt(local);
2048 return IRQ_HANDLED;
2049 } /* ray_interrupt */
2050
2051 /*===========================================================================*/
ray_rx(struct net_device * dev,ray_dev_t * local,struct rcs __iomem * prcs)2052 static void ray_rx(struct net_device *dev, ray_dev_t *local,
2053 struct rcs __iomem *prcs)
2054 {
2055 int rx_len;
2056 unsigned int pkt_addr;
2057 void __iomem *pmsg;
2058 pr_debug("ray_rx process rx packet\n");
2059
2060 /* Calculate address of packet within Rx buffer */
2061 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2062 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2063 /* Length of first packet fragment */
2064 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2065 + readb(&prcs->var.rx_packet.rx_data_length[1]);
2066
2067 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2068 pmsg = local->rmem + pkt_addr;
2069 switch (readb(pmsg)) {
2070 case DATA_TYPE:
2071 pr_debug("ray_rx data type\n");
2072 rx_data(dev, prcs, pkt_addr, rx_len);
2073 break;
2074 case AUTHENTIC_TYPE:
2075 pr_debug("ray_rx authentic type\n");
2076 if (sniffer)
2077 rx_data(dev, prcs, pkt_addr, rx_len);
2078 else
2079 rx_authenticate(local, prcs, pkt_addr, rx_len);
2080 break;
2081 case DEAUTHENTIC_TYPE:
2082 pr_debug("ray_rx deauth type\n");
2083 if (sniffer)
2084 rx_data(dev, prcs, pkt_addr, rx_len);
2085 else
2086 rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2087 break;
2088 case NULL_MSG_TYPE:
2089 pr_debug("ray_cs rx NULL msg\n");
2090 break;
2091 case BEACON_TYPE:
2092 pr_debug("ray_rx beacon type\n");
2093 if (sniffer)
2094 rx_data(dev, prcs, pkt_addr, rx_len);
2095
2096 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr,
2097 rx_len < sizeof(struct beacon_rx) ?
2098 rx_len : sizeof(struct beacon_rx));
2099
2100 local->beacon_rxed = 1;
2101 /* Get the statistics so the card counters never overflow */
2102 ray_get_stats(dev);
2103 break;
2104 default:
2105 pr_debug("ray_cs unknown pkt type %2x\n",
2106 (unsigned int)readb(pmsg));
2107 break;
2108 }
2109
2110 } /* end ray_rx */
2111
2112 /*===========================================================================*/
rx_data(struct net_device * dev,struct rcs __iomem * prcs,unsigned int pkt_addr,int rx_len)2113 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
2114 unsigned int pkt_addr, int rx_len)
2115 {
2116 struct sk_buff *skb = NULL;
2117 struct rcs __iomem *prcslink = prcs;
2118 ray_dev_t *local = netdev_priv(dev);
2119 UCHAR *rx_ptr;
2120 int total_len;
2121 int tmp;
2122 #ifdef WIRELESS_SPY
2123 int siglev = local->last_rsl;
2124 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */
2125 #endif
2126
2127 if (!sniffer) {
2128 if (translate) {
2129 /* TBD length needs fixing for translated header */
2130 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2131 rx_len >
2132 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2133 FCS_LEN)) {
2134 pr_debug(
2135 "ray_cs invalid packet length %d received\n",
2136 rx_len);
2137 return;
2138 }
2139 } else { /* encapsulated ethernet */
2140
2141 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2142 rx_len >
2143 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2144 FCS_LEN)) {
2145 pr_debug(
2146 "ray_cs invalid packet length %d received\n",
2147 rx_len);
2148 return;
2149 }
2150 }
2151 }
2152 pr_debug("ray_cs rx_data packet\n");
2153 /* If fragmented packet, verify sizes of fragments add up */
2154 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2155 pr_debug("ray_cs rx'ed fragment\n");
2156 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2157 + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2158 total_len = tmp;
2159 prcslink = prcs;
2160 do {
2161 tmp -=
2162 (readb(&prcslink->var.rx_packet.rx_data_length[0])
2163 << 8)
2164 + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2165 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index)
2166 == 0xFF || tmp < 0)
2167 break;
2168 prcslink = rcs_base(local)
2169 + readb(&prcslink->link_field);
2170 } while (1);
2171
2172 if (tmp < 0) {
2173 pr_debug(
2174 "ray_cs rx_data fragment lengths don't add up\n");
2175 local->stats.rx_dropped++;
2176 release_frag_chain(local, prcs);
2177 return;
2178 }
2179 } else { /* Single unfragmented packet */
2180 total_len = rx_len;
2181 }
2182
2183 skb = dev_alloc_skb(total_len + 5);
2184 if (skb == NULL) {
2185 pr_debug("ray_cs rx_data could not allocate skb\n");
2186 local->stats.rx_dropped++;
2187 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2188 release_frag_chain(local, prcs);
2189 return;
2190 }
2191 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */
2192
2193 pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len,
2194 rx_len);
2195
2196 /************************/
2197 /* Reserve enough room for the whole damn packet. */
2198 rx_ptr = skb_put(skb, total_len);
2199 /* Copy the whole packet to sk_buff */
2200 rx_ptr +=
2201 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2202 /* Get source address */
2203 #ifdef WIRELESS_SPY
2204 skb_copy_from_linear_data_offset(skb,
2205 offsetof(struct mac_header, addr_2),
2206 linksrcaddr, ETH_ALEN);
2207 #endif
2208 /* Now, deal with encapsulation/translation/sniffer */
2209 if (!sniffer) {
2210 if (!translate) {
2211 /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2212 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2213 skb_pull(skb, RX_MAC_HEADER_LENGTH);
2214 } else {
2215 /* Do translation */
2216 untranslate(local, skb, total_len);
2217 }
2218 } else { /* sniffer mode, so just pass whole packet */
2219 };
2220
2221 /************************/
2222 /* Now pick up the rest of the fragments if any */
2223 tmp = 17;
2224 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2225 prcslink = prcs;
2226 pr_debug("ray_cs rx_data in fragment loop\n");
2227 do {
2228 prcslink = rcs_base(local)
2229 +
2230 readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2231 rx_len =
2232 ((readb(&prcslink->var.rx_packet.rx_data_length[0])
2233 << 8)
2234 +
2235 readb(&prcslink->var.rx_packet.rx_data_length[1]))
2236 & RX_BUFF_END;
2237 pkt_addr =
2238 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) <<
2239 8)
2240 + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2241 & RX_BUFF_END;
2242
2243 rx_ptr +=
2244 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2245
2246 } while (tmp-- &&
2247 readb(&prcslink->var.rx_packet.next_frag_rcs_index) !=
2248 0xFF);
2249 release_frag_chain(local, prcs);
2250 }
2251
2252 skb->protocol = eth_type_trans(skb, dev);
2253 netif_rx(skb);
2254 local->stats.rx_packets++;
2255 local->stats.rx_bytes += total_len;
2256
2257 /* Gather signal strength per address */
2258 #ifdef WIRELESS_SPY
2259 /* For the Access Point or the node having started the ad-hoc net
2260 * note : ad-hoc work only in some specific configurations, but we
2261 * kludge in ray_get_wireless_stats... */
2262 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) {
2263 /* Update statistics */
2264 /*local->wstats.qual.qual = none ? */
2265 local->wstats.qual.level = siglev;
2266 /*local->wstats.qual.noise = none ? */
2267 local->wstats.qual.updated = 0x2;
2268 }
2269 /* Now, update the spy stuff */
2270 {
2271 struct iw_quality wstats;
2272 wstats.level = siglev;
2273 /* wstats.noise = none ? */
2274 /* wstats.qual = none ? */
2275 wstats.updated = 0x2;
2276 /* Update spy records */
2277 wireless_spy_update(dev, linksrcaddr, &wstats);
2278 }
2279 #endif /* WIRELESS_SPY */
2280 } /* end rx_data */
2281
2282 /*===========================================================================*/
untranslate(ray_dev_t * local,struct sk_buff * skb,int len)2283 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2284 {
2285 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH);
2286 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2287 __be16 type = *(__be16 *) psnap->ethertype;
2288 int delta;
2289 struct ethhdr *peth;
2290 UCHAR srcaddr[ADDRLEN];
2291 UCHAR destaddr[ADDRLEN];
2292 static const UCHAR org_bridge[3] = { 0, 0, 0xf8 };
2293 static const UCHAR org_1042[3] = { 0, 0, 0 };
2294
2295 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2296 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2297
2298 #if 0
2299 if {
2300 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
2301 DUMP_PREFIX_NONE, 16, 1,
2302 skb->data, 64, true);
2303 printk(KERN_DEBUG
2304 "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2305 ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
2306 psnap->org[0], psnap->org[1], psnap->org[2]);
2307 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data);
2308 }
2309 #endif
2310
2311 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2312 /* not a snap type so leave it alone */
2313 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2314 psnap->dsap, psnap->ssap, psnap->ctrl);
2315
2316 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2317 peth = (struct ethhdr *)(skb->data + delta);
2318 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2319 } else { /* Its a SNAP */
2320 if (memcmp(psnap->org, org_bridge, 3) == 0) {
2321 /* EtherII and nuke the LLC */
2322 pr_debug("ray_cs untranslate Bridge encap\n");
2323 delta = RX_MAC_HEADER_LENGTH
2324 + sizeof(struct snaphdr_t) - ETH_HLEN;
2325 peth = (struct ethhdr *)(skb->data + delta);
2326 peth->h_proto = type;
2327 } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2328 switch (ntohs(type)) {
2329 case ETH_P_IPX:
2330 case ETH_P_AARP:
2331 pr_debug("ray_cs untranslate RFC IPX/AARP\n");
2332 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2333 peth = (struct ethhdr *)(skb->data + delta);
2334 peth->h_proto =
2335 htons(len - RX_MAC_HEADER_LENGTH);
2336 break;
2337 default:
2338 pr_debug("ray_cs untranslate RFC default\n");
2339 delta = RX_MAC_HEADER_LENGTH +
2340 sizeof(struct snaphdr_t) - ETH_HLEN;
2341 peth = (struct ethhdr *)(skb->data + delta);
2342 peth->h_proto = type;
2343 break;
2344 }
2345 } else {
2346 printk("ray_cs untranslate very confused by packet\n");
2347 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2348 peth = (struct ethhdr *)(skb->data + delta);
2349 peth->h_proto = type;
2350 }
2351 }
2352 /* TBD reserve skb_reserve(skb, delta); */
2353 skb_pull(skb, delta);
2354 pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta,
2355 skb->data);
2356 memcpy(peth->h_dest, destaddr, ADDRLEN);
2357 memcpy(peth->h_source, srcaddr, ADDRLEN);
2358 #if 0
2359 {
2360 int i;
2361 printk(KERN_DEBUG "skb->data after untranslate:");
2362 for (i = 0; i < 64; i++)
2363 printk("%02x ", skb->data[i]);
2364 printk("\n");
2365 }
2366 #endif
2367 } /* end untranslate */
2368
2369 /*===========================================================================*/
2370 /* Copy data from circular receive buffer to PC memory.
2371 * dest = destination address in PC memory
2372 * pkt_addr = source address in receive buffer
2373 * len = length of packet to copy
2374 */
copy_from_rx_buff(ray_dev_t * local,UCHAR * dest,int pkt_addr,int length)2375 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr,
2376 int length)
2377 {
2378 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2379 if (wrap_bytes <= 0) {
2380 memcpy_fromio(dest, local->rmem + pkt_addr, length);
2381 } else { /* Packet wrapped in circular buffer */
2382
2383 memcpy_fromio(dest, local->rmem + pkt_addr,
2384 length - wrap_bytes);
2385 memcpy_fromio(dest + length - wrap_bytes, local->rmem,
2386 wrap_bytes);
2387 }
2388 return length;
2389 }
2390
2391 /*===========================================================================*/
release_frag_chain(ray_dev_t * local,struct rcs __iomem * prcs)2392 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs)
2393 {
2394 struct rcs __iomem *prcslink = prcs;
2395 int tmp = 17;
2396 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2397
2398 while (tmp--) {
2399 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2400 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2401 pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n",
2402 rcsindex);
2403 break;
2404 }
2405 prcslink = rcs_base(local) + rcsindex;
2406 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2407 }
2408 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2409 }
2410
2411 /*===========================================================================*/
authenticate(ray_dev_t * local)2412 static void authenticate(ray_dev_t *local)
2413 {
2414 struct pcmcia_device *link = local->finder;
2415 dev_dbg(&link->dev, "ray_cs Starting authentication.\n");
2416 if (!(pcmcia_dev_present(link))) {
2417 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n");
2418 return;
2419 }
2420
2421 del_timer(&local->timer);
2422 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2423 local->timer.function = join_net;
2424 } else {
2425 local->timer.function = authenticate_timeout;
2426 }
2427 local->timer.expires = jiffies + HZ * 2;
2428 local->timer.data = (long)local;
2429 add_timer(&local->timer);
2430 local->authentication_state = AWAITING_RESPONSE;
2431 } /* end authenticate */
2432
2433 /*===========================================================================*/
rx_authenticate(ray_dev_t * local,struct rcs __iomem * prcs,unsigned int pkt_addr,int rx_len)2434 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2435 unsigned int pkt_addr, int rx_len)
2436 {
2437 UCHAR buff[256];
2438 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2439
2440 del_timer(&local->timer);
2441
2442 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2443 /* if we are trying to get authenticated */
2444 if (local->sparm.b4.a_network_type == ADHOC) {
2445 pr_debug("ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n",
2446 msg->var[0], msg->var[1], msg->var[2], msg->var[3],
2447 msg->var[4], msg->var[5]);
2448 if (msg->var[2] == 1) {
2449 pr_debug("ray_cs Sending authentication response.\n");
2450 if (!build_auth_frame
2451 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2452 local->authentication_state = NEED_TO_AUTH;
2453 memcpy(local->auth_id, msg->mac.addr_2,
2454 ADDRLEN);
2455 }
2456 }
2457 } else { /* Infrastructure network */
2458
2459 if (local->authentication_state == AWAITING_RESPONSE) {
2460 /* Verify authentication sequence #2 and success */
2461 if (msg->var[2] == 2) {
2462 if ((msg->var[3] | msg->var[4]) == 0) {
2463 pr_debug("Authentication successful\n");
2464 local->card_status = CARD_AUTH_COMPLETE;
2465 associate(local);
2466 local->authentication_state =
2467 AUTHENTICATED;
2468 } else {
2469 pr_debug("Authentication refused\n");
2470 local->card_status = CARD_AUTH_REFUSED;
2471 join_net((u_long) local);
2472 local->authentication_state =
2473 UNAUTHENTICATED;
2474 }
2475 }
2476 }
2477 }
2478
2479 } /* end rx_authenticate */
2480
2481 /*===========================================================================*/
associate(ray_dev_t * local)2482 static void associate(ray_dev_t *local)
2483 {
2484 struct ccs __iomem *pccs;
2485 struct pcmcia_device *link = local->finder;
2486 struct net_device *dev = link->priv;
2487 int ccsindex;
2488 if (!(pcmcia_dev_present(link))) {
2489 dev_dbg(&link->dev, "ray_cs associate - device not present\n");
2490 return;
2491 }
2492 /* If no tx buffers available, return */
2493 if ((ccsindex = get_free_ccs(local)) < 0) {
2494 /* TBD should never be here but... what if we are? */
2495 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n");
2496 return;
2497 }
2498 dev_dbg(&link->dev, "ray_cs Starting association with access point\n");
2499 pccs = ccs_base(local) + ccsindex;
2500 /* fill in the CCS */
2501 writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2502 /* Interrupt the firmware to process the command */
2503 if (interrupt_ecf(local, ccsindex)) {
2504 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
2505 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2506
2507 del_timer(&local->timer);
2508 local->timer.expires = jiffies + HZ * 2;
2509 local->timer.data = (long)local;
2510 local->timer.function = join_net;
2511 add_timer(&local->timer);
2512 local->card_status = CARD_ASSOC_FAILED;
2513 return;
2514 }
2515 if (!sniffer)
2516 netif_start_queue(dev);
2517
2518 } /* end associate */
2519
2520 /*===========================================================================*/
rx_deauthenticate(ray_dev_t * local,struct rcs __iomem * prcs,unsigned int pkt_addr,int rx_len)2521 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2522 unsigned int pkt_addr, int rx_len)
2523 {
2524 /* UCHAR buff[256];
2525 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2526 */
2527 pr_debug("Deauthentication frame received\n");
2528 local->authentication_state = UNAUTHENTICATED;
2529 /* Need to reauthenticate or rejoin depending on reason code */
2530 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2531 */
2532 }
2533
2534 /*===========================================================================*/
clear_interrupt(ray_dev_t * local)2535 static void clear_interrupt(ray_dev_t *local)
2536 {
2537 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2538 }
2539
2540 /*===========================================================================*/
2541 #ifdef CONFIG_PROC_FS
2542 #define MAXDATA (PAGE_SIZE - 80)
2543
2544 static const char *card_status[] = {
2545 "Card inserted - uninitialized", /* 0 */
2546 "Card not downloaded", /* 1 */
2547 "Waiting for download parameters", /* 2 */
2548 "Card doing acquisition", /* 3 */
2549 "Acquisition complete", /* 4 */
2550 "Authentication complete", /* 5 */
2551 "Association complete", /* 6 */
2552 "???", "???", "???", "???", /* 7 8 9 10 undefined */
2553 "Card init error", /* 11 */
2554 "Download parameters error", /* 12 */
2555 "???", /* 13 */
2556 "Acquisition failed", /* 14 */
2557 "Authentication refused", /* 15 */
2558 "Association failed" /* 16 */
2559 };
2560
2561 static const char *nettype[] = { "Adhoc", "Infra " };
2562 static const char *framing[] = { "Encapsulation", "Translation" }
2563
2564 ;
2565 /*===========================================================================*/
ray_cs_proc_show(struct seq_file * m,void * v)2566 static int ray_cs_proc_show(struct seq_file *m, void *v)
2567 {
2568 /* Print current values which are not available via other means
2569 * eg ifconfig
2570 */
2571 int i;
2572 struct pcmcia_device *link;
2573 struct net_device *dev;
2574 ray_dev_t *local;
2575 UCHAR *p;
2576 struct freq_hop_element *pfh;
2577 UCHAR c[33];
2578
2579 link = this_device;
2580 if (!link)
2581 return 0;
2582 dev = (struct net_device *)link->priv;
2583 if (!dev)
2584 return 0;
2585 local = netdev_priv(dev);
2586 if (!local)
2587 return 0;
2588
2589 seq_puts(m, "Raylink Wireless LAN driver status\n");
2590 seq_printf(m, "%s\n", rcsid);
2591 /* build 4 does not report version, and field is 0x55 after memtest */
2592 seq_puts(m, "Firmware version = ");
2593 if (local->fw_ver == 0x55)
2594 seq_puts(m, "4 - Use dump_cis for more details\n");
2595 else
2596 seq_printf(m, "%2d.%02d.%02d\n",
2597 local->fw_ver, local->fw_bld, local->fw_var);
2598
2599 for (i = 0; i < 32; i++)
2600 c[i] = local->sparm.b5.a_current_ess_id[i];
2601 c[32] = 0;
2602 seq_printf(m, "%s network ESSID = \"%s\"\n",
2603 nettype[local->sparm.b5.a_network_type], c);
2604
2605 p = local->bss_id;
2606 seq_printf(m, "BSSID = %pM\n", p);
2607
2608 seq_printf(m, "Country code = %d\n",
2609 local->sparm.b5.a_curr_country_code);
2610
2611 i = local->card_status;
2612 if (i < 0)
2613 i = 10;
2614 if (i > 16)
2615 i = 10;
2616 seq_printf(m, "Card status = %s\n", card_status[i]);
2617
2618 seq_printf(m, "Framing mode = %s\n", framing[translate]);
2619
2620 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl);
2621
2622 if (local->beacon_rxed) {
2623 /* Pull some fields out of last beacon received */
2624 seq_printf(m, "Beacon Interval = %d Kus\n",
2625 local->last_bcn.beacon_intvl[0]
2626 + 256 * local->last_bcn.beacon_intvl[1]);
2627
2628 p = local->last_bcn.elements;
2629 if (p[0] == C_ESSID_ELEMENT_ID)
2630 p += p[1] + 2;
2631 else {
2632 seq_printf(m,
2633 "Parse beacon failed at essid element id = %d\n",
2634 p[0]);
2635 return 0;
2636 }
2637
2638 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2639 seq_puts(m, "Supported rate codes = ");
2640 for (i = 2; i < p[1] + 2; i++)
2641 seq_printf(m, "0x%02x ", p[i]);
2642 seq_putc(m, '\n');
2643 p += p[1] + 2;
2644 } else {
2645 seq_puts(m, "Parse beacon failed at rates element\n");
2646 return 0;
2647 }
2648
2649 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2650 pfh = (struct freq_hop_element *)p;
2651 seq_printf(m, "Hop dwell = %d Kus\n",
2652 pfh->dwell_time[0] +
2653 256 * pfh->dwell_time[1]);
2654 seq_printf(m, "Hop set = %d\n",
2655 pfh->hop_set);
2656 seq_printf(m, "Hop pattern = %d\n",
2657 pfh->hop_pattern);
2658 seq_printf(m, "Hop index = %d\n",
2659 pfh->hop_index);
2660 p += p[1] + 2;
2661 } else {
2662 seq_puts(m,
2663 "Parse beacon failed at FH param element\n");
2664 return 0;
2665 }
2666 } else {
2667 seq_puts(m, "No beacons received\n");
2668 }
2669 return 0;
2670 }
2671
ray_cs_proc_open(struct inode * inode,struct file * file)2672 static int ray_cs_proc_open(struct inode *inode, struct file *file)
2673 {
2674 return single_open(file, ray_cs_proc_show, NULL);
2675 }
2676
2677 static const struct file_operations ray_cs_proc_fops = {
2678 .owner = THIS_MODULE,
2679 .open = ray_cs_proc_open,
2680 .read = seq_read,
2681 .llseek = seq_lseek,
2682 .release = single_release,
2683 };
2684 #endif
2685 /*===========================================================================*/
build_auth_frame(ray_dev_t * local,UCHAR * dest,int auth_type)2686 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2687 {
2688 int addr;
2689 struct ccs __iomem *pccs;
2690 struct tx_msg __iomem *ptx;
2691 int ccsindex;
2692
2693 /* If no tx buffers available, return */
2694 if ((ccsindex = get_free_tx_ccs(local)) < 0) {
2695 pr_debug("ray_cs send authenticate - No free tx ccs\n");
2696 return -1;
2697 }
2698
2699 pccs = ccs_base(local) + ccsindex;
2700
2701 /* Address in card space */
2702 addr = TX_BUF_BASE + (ccsindex << 11);
2703 /* fill in the CCS */
2704 writeb(CCS_TX_REQUEST, &pccs->cmd);
2705 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2706 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2707 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2708 writeb(TX_AUTHENTICATE_LENGTH_LSB,
2709 pccs->var.tx_request.tx_data_length + 1);
2710 writeb(0, &pccs->var.tx_request.pow_sav_mode);
2711
2712 ptx = local->sram + addr;
2713 /* fill in the mac header */
2714 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2715 writeb(0, &ptx->mac.frame_ctl_2);
2716
2717 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2718 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2719 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2720
2721 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2722 memset_io(ptx->var, 0, 6);
2723 writeb(auth_type & 0xff, ptx->var + 2);
2724
2725 /* Interrupt the firmware to process the command */
2726 if (interrupt_ecf(local, ccsindex)) {
2727 pr_debug(
2728 "ray_cs send authentication request failed - ECF not ready for intr\n");
2729 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2730 return -1;
2731 }
2732 return 0;
2733 } /* End build_auth_frame */
2734
2735 /*===========================================================================*/
2736 #ifdef CONFIG_PROC_FS
ray_cs_essid_proc_write(struct file * file,const char __user * buffer,size_t count,loff_t * pos)2737 static ssize_t ray_cs_essid_proc_write(struct file *file,
2738 const char __user *buffer, size_t count, loff_t *pos)
2739 {
2740 static char proc_essid[33];
2741 unsigned int len = count;
2742
2743 if (len > 32)
2744 len = 32;
2745 memset(proc_essid, 0, 33);
2746 if (copy_from_user(proc_essid, buffer, len))
2747 return -EFAULT;
2748 essid = proc_essid;
2749 return count;
2750 }
2751
2752 static const struct file_operations ray_cs_essid_proc_fops = {
2753 .owner = THIS_MODULE,
2754 .write = ray_cs_essid_proc_write,
2755 .llseek = noop_llseek,
2756 };
2757
int_proc_write(struct file * file,const char __user * buffer,size_t count,loff_t * pos)2758 static ssize_t int_proc_write(struct file *file, const char __user *buffer,
2759 size_t count, loff_t *pos)
2760 {
2761 static char proc_number[10];
2762 char *p;
2763 int nr, len;
2764
2765 if (!count)
2766 return 0;
2767
2768 if (count > 9)
2769 return -EINVAL;
2770 if (copy_from_user(proc_number, buffer, count))
2771 return -EFAULT;
2772 p = proc_number;
2773 nr = 0;
2774 len = count;
2775 do {
2776 unsigned int c = *p - '0';
2777 if (c > 9)
2778 return -EINVAL;
2779 nr = nr * 10 + c;
2780 p++;
2781 } while (--len);
2782 *(int *)PDE_DATA(file_inode(file)) = nr;
2783 return count;
2784 }
2785
2786 static const struct file_operations int_proc_fops = {
2787 .owner = THIS_MODULE,
2788 .write = int_proc_write,
2789 .llseek = noop_llseek,
2790 };
2791 #endif
2792
2793 static const struct pcmcia_device_id ray_ids[] = {
2794 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2795 PCMCIA_DEVICE_NULL,
2796 };
2797
2798 MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2799
2800 static struct pcmcia_driver ray_driver = {
2801 .owner = THIS_MODULE,
2802 .name = "ray_cs",
2803 .probe = ray_probe,
2804 .remove = ray_detach,
2805 .id_table = ray_ids,
2806 .suspend = ray_suspend,
2807 .resume = ray_resume,
2808 };
2809
init_ray_cs(void)2810 static int __init init_ray_cs(void)
2811 {
2812 int rc;
2813
2814 pr_debug("%s\n", rcsid);
2815 rc = pcmcia_register_driver(&ray_driver);
2816 pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n",
2817 rc);
2818
2819 #ifdef CONFIG_PROC_FS
2820 proc_mkdir("driver/ray_cs", NULL);
2821
2822 proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops);
2823 proc_create("driver/ray_cs/essid", S_IWUSR, NULL, &ray_cs_essid_proc_fops);
2824 proc_create_data("driver/ray_cs/net_type", S_IWUSR, NULL, &int_proc_fops, &net_type);
2825 proc_create_data("driver/ray_cs/translate", S_IWUSR, NULL, &int_proc_fops, &translate);
2826 #endif
2827 if (translate != 0)
2828 translate = 1;
2829 return 0;
2830 } /* init_ray_cs */
2831
2832 /*===========================================================================*/
2833
exit_ray_cs(void)2834 static void __exit exit_ray_cs(void)
2835 {
2836 pr_debug("ray_cs: cleanup_module\n");
2837
2838 #ifdef CONFIG_PROC_FS
2839 remove_proc_entry("driver/ray_cs/ray_cs", NULL);
2840 remove_proc_entry("driver/ray_cs/essid", NULL);
2841 remove_proc_entry("driver/ray_cs/net_type", NULL);
2842 remove_proc_entry("driver/ray_cs/translate", NULL);
2843 remove_proc_entry("driver/ray_cs", NULL);
2844 #endif
2845
2846 pcmcia_unregister_driver(&ray_driver);
2847 } /* exit_ray_cs */
2848
2849 module_init(init_ray_cs);
2850 module_exit(exit_ray_cs);
2851
2852 /*===========================================================================*/
2853