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Linux 3.4.102
[linux/fpc-iii.git] / drivers / net / wireless / ray_cs.c
blob86a738bf591c601db5572d16f2b104b07a1f132a
1 /*=============================================================================
2 *
3 * A PCMCIA client driver for the Raylink wireless LAN card.
4 * The starting point for this module was the skeleton.c in the
5 * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net
6 *
7 *
8 * Copyright (c) 1998 Corey Thomas (corey@world.std.com)
9 *
10 * This driver is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 only of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * It is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
22 *
23 * Changes:
24 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
25 * - reorganize kmallocs in ray_attach, checking all for failure
26 * and releasing the previous allocations if one fails
27 *
28 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003
29 * - Audit copy_to_user in ioctl(SIOCGIWESSID)
30 *
31 =============================================================================*/
32
33 #include <linux/module.h>
34 #include <linux/kernel.h>
35 #include <linux/proc_fs.h>
36 #include <linux/ptrace.h>
37 #include <linux/seq_file.h>
38 #include <linux/string.h>
39 #include <linux/timer.h>
40 #include <linux/init.h>
41 #include <linux/netdevice.h>
42 #include <linux/etherdevice.h>
43 #include <linux/if_arp.h>
44 #include <linux/ioport.h>
45 #include <linux/skbuff.h>
46 #include <linux/ieee80211.h>
47
48 #include <pcmcia/cistpl.h>
49 #include <pcmcia/cisreg.h>
50 #include <pcmcia/ds.h>
51
52 #include <linux/wireless.h>
53 #include <net/iw_handler.h>
54
55 #include <asm/io.h>
56 #include <asm/byteorder.h>
57 #include <asm/uaccess.h>
58
59 /* Warning : these stuff will slow down the driver... */
60 #define WIRELESS_SPY /* Enable spying addresses */
61 /* Definitions we need for spy */
62 typedef struct iw_statistics iw_stats;
63 typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */
64
65 #include "rayctl.h"
66 #include "ray_cs.h"
67
68
69 /** Prototypes based on PCMCIA skeleton driver *******************************/
70 static int ray_config(struct pcmcia_device *link);
71 static void ray_release(struct pcmcia_device *link);
72 static void ray_detach(struct pcmcia_device *p_dev);
73
74 /***** Prototypes indicated by device structure ******************************/
75 static int ray_dev_close(struct net_device *dev);
76 static int ray_dev_config(struct net_device *dev, struct ifmap *map);
77 static struct net_device_stats *ray_get_stats(struct net_device *dev);
78 static int ray_dev_init(struct net_device *dev);
79
80 static int ray_open(struct net_device *dev);
81 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
82 struct net_device *dev);
83 static void set_multicast_list(struct net_device *dev);
84 static void ray_update_multi_list(struct net_device *dev, int all);
85 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
86 unsigned char *data, int len);
87 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
88 UCHAR msg_type, unsigned char *data);
89 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
90 static iw_stats *ray_get_wireless_stats(struct net_device *dev);
91 static const struct iw_handler_def ray_handler_def;
92
93 /***** Prototypes for raylink functions **************************************/
94 static void authenticate(ray_dev_t *local);
95 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
96 static void authenticate_timeout(u_long);
97 static int get_free_ccs(ray_dev_t *local);
98 static int get_free_tx_ccs(ray_dev_t *local);
99 static void init_startup_params(ray_dev_t *local);
100 static int parse_addr(char *in_str, UCHAR *out);
101 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type);
102 static int ray_init(struct net_device *dev);
103 static int interrupt_ecf(ray_dev_t *local, int ccs);
104 static void ray_reset(struct net_device *dev);
105 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
106 static void verify_dl_startup(u_long);
107
108 /* Prototypes for interrpt time functions **********************************/
109 static irqreturn_t ray_interrupt(int reg, void *dev_id);
110 static void clear_interrupt(ray_dev_t *local);
111 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
112 unsigned int pkt_addr, int rx_len);
113 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
114 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
115 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
116 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
117 unsigned int pkt_addr, int rx_len);
118 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
119 unsigned int pkt_addr, int rx_len);
120 static void associate(ray_dev_t *local);
121
122 /* Card command functions */
123 static int dl_startup_params(struct net_device *dev);
124 static void join_net(u_long local);
125 static void start_net(u_long local);
126 /* void start_net(ray_dev_t *local); */
127
128 /*===========================================================================*/
129 /* Parameters that can be set with 'insmod' */
130
131 /* ADHOC=0, Infrastructure=1 */
132 static int net_type = ADHOC;
133
134 /* Hop dwell time in Kus (1024 us units defined by 802.11) */
135 static int hop_dwell = 128;
136
137 /* Beacon period in Kus */
138 static int beacon_period = 256;
139
140 /* power save mode (0 = off, 1 = save power) */
141 static int psm;
142
143 /* String for network's Extended Service Set ID. 32 Characters max */
144 static char *essid;
145
146 /* Default to encapsulation unless translation requested */
147 static int translate = 1;
148
149 static int country = USA;
150
151 static int sniffer;
152
153 static int bc;
154
155 /* 48 bit physical card address if overriding card's real physical
156 * address is required. Since IEEE 802.11 addresses are 48 bits
157 * like ethernet, an int can't be used, so a string is used. To
158 * allow use of addresses starting with a decimal digit, the first
159 * character must be a letter and will be ignored. This letter is
160 * followed by up to 12 hex digits which are the address. If less
161 * than 12 digits are used, the address will be left filled with 0's.
162 * Note that bit 0 of the first byte is the broadcast bit, and evil
163 * things will happen if it is not 0 in a card address.
164 */
165 static char *phy_addr = NULL;
166
167 static unsigned int ray_mem_speed = 500;
168
169 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
170 static struct pcmcia_device *this_device = NULL;
171
172 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
173 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
174 MODULE_LICENSE("GPL");
175
176 module_param(net_type, int, 0);
177 module_param(hop_dwell, int, 0);
178 module_param(beacon_period, int, 0);
179 module_param(psm, int, 0);
180 module_param(essid, charp, 0);
181 module_param(translate, int, 0);
182 module_param(country, int, 0);
183 module_param(sniffer, int, 0);
184 module_param(bc, int, 0);
185 module_param(phy_addr, charp, 0);
186 module_param(ray_mem_speed, int, 0);
187
188 static const UCHAR b5_default_startup_parms[] = {
189 0, 0, /* Adhoc station */
190 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
191 0, 0, 0, 0, 0, 0, 0, 0,
192 0, 0, 0, 0, 0, 0, 0, 0,
193 0, 0, 0, 0, 0, 0, 0, 0,
194 1, 0, /* Active scan, CA Mode */
195 0, 0, 0, 0, 0, 0, /* No default MAC addr */
196 0x7f, 0xff, /* Frag threshold */
197 0x00, 0x80, /* Hop time 128 Kus */
198 0x01, 0x00, /* Beacon period 256 Kus */
199 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
200 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */
201 0x7f, 0xff, /* RTS threshold */
202 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
203 0x05, /* assoc resp timeout thresh */
204 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */
205 0, /* Promiscuous mode */
206 0x0c, 0x0bd, /* Unique word */
207 0x32, /* Slot time */
208 0xff, 0xff, /* roam-low snr, low snr count */
209 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
210 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */
211 /* b4 - b5 differences start here */
212 0x00, 0x3f, /* CW max */
213 0x00, 0x0f, /* CW min */
214 0x04, 0x08, /* Noise gain, limit offset */
215 0x28, 0x28, /* det rssi, med busy offsets */
216 7, /* det sync thresh */
217 0, 2, 2, /* test mode, min, max */
218 0, /* allow broadcast SSID probe resp */
219 0, 0, /* privacy must start, can join */
220 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */
221 };
222
223 static const UCHAR b4_default_startup_parms[] = {
224 0, 0, /* Adhoc station */
225 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
226 0, 0, 0, 0, 0, 0, 0, 0,
227 0, 0, 0, 0, 0, 0, 0, 0,
228 0, 0, 0, 0, 0, 0, 0, 0,
229 1, 0, /* Active scan, CA Mode */
230 0, 0, 0, 0, 0, 0, /* No default MAC addr */
231 0x7f, 0xff, /* Frag threshold */
232 0x02, 0x00, /* Hop time */
233 0x00, 0x01, /* Beacon period */
234 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
235 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */
236 0x7f, 0xff, /* RTS threshold */
237 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
238 0x05, /* assoc resp timeout thresh */
239 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */
240 0, /* Promiscuous mode */
241 0x0c, 0x0bd, /* Unique word */
242 0x4e, /* Slot time (TBD seems wrong) */
243 0xff, 0xff, /* roam-low snr, low snr count */
244 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
245 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */
246 /* b4 - b5 differences start here */
247 0x3f, 0x0f, /* CW max, min */
248 0x04, 0x08, /* Noise gain, limit offset */
249 0x28, 0x28, /* det rssi, med busy offsets */
250 7, /* det sync thresh */
251 0, 2, 2 /* test mode, min, max */
252 };
253
254 /*===========================================================================*/
255 static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 };
256
257 static const char hop_pattern_length[] = { 1,
258 USA_HOP_MOD, EUROPE_HOP_MOD,
259 JAPAN_HOP_MOD, KOREA_HOP_MOD,
260 SPAIN_HOP_MOD, FRANCE_HOP_MOD,
261 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
262 JAPAN_TEST_HOP_MOD
263 };
264
265 static const char rcsid[] =
266 "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
267
268 static const struct net_device_ops ray_netdev_ops = {
269 .ndo_init = ray_dev_init,
270 .ndo_open = ray_open,
271 .ndo_stop = ray_dev_close,
272 .ndo_start_xmit = ray_dev_start_xmit,
273 .ndo_set_config = ray_dev_config,
274 .ndo_get_stats = ray_get_stats,
275 .ndo_set_rx_mode = set_multicast_list,
276 .ndo_change_mtu = eth_change_mtu,
277 .ndo_set_mac_address = eth_mac_addr,
278 .ndo_validate_addr = eth_validate_addr,
279 };
280
281 static int ray_probe(struct pcmcia_device *p_dev)
282 {
283 ray_dev_t *local;
284 struct net_device *dev;
285
286 dev_dbg(&p_dev->dev, "ray_attach()\n");
287
288 /* Allocate space for private device-specific data */
289 dev = alloc_etherdev(sizeof(ray_dev_t));
290 if (!dev)
291 goto fail_alloc_dev;
292
293 local = netdev_priv(dev);
294 local->finder = p_dev;
295
296 /* The io structure describes IO port mapping. None used here */
297 p_dev->resource[0]->end = 0;
298 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
299
300 /* General socket configuration */
301 p_dev->config_flags |= CONF_ENABLE_IRQ;
302 p_dev->config_index = 1;
303
304 p_dev->priv = dev;
305
306 local->finder = p_dev;
307 local->card_status = CARD_INSERTED;
308 local->authentication_state = UNAUTHENTICATED;
309 local->num_multi = 0;
310 dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n",
311 p_dev, dev, local, &ray_interrupt);
312
313 /* Raylink entries in the device structure */
314 dev->netdev_ops = &ray_netdev_ops;
315 dev->wireless_handlers = &ray_handler_def;
316 #ifdef WIRELESS_SPY
317 local->wireless_data.spy_data = &local->spy_data;
318 dev->wireless_data = &local->wireless_data;
319 #endif /* WIRELESS_SPY */
320
321
322 dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n");
323 netif_stop_queue(dev);
324
325 init_timer(&local->timer);
326
327 this_device = p_dev;
328 return ray_config(p_dev);
329
330 fail_alloc_dev:
331 return -ENOMEM;
332 } /* ray_attach */
333
334 static void ray_detach(struct pcmcia_device *link)
335 {
336 struct net_device *dev;
337 ray_dev_t *local;
338
339 dev_dbg(&link->dev, "ray_detach\n");
340
341 this_device = NULL;
342 dev = link->priv;
343
344 ray_release(link);
345
346 local = netdev_priv(dev);
347 del_timer(&local->timer);
348
349 if (link->priv) {
350 unregister_netdev(dev);
351 free_netdev(dev);
352 }
353 dev_dbg(&link->dev, "ray_cs ray_detach ending\n");
354 } /* ray_detach */
355
356 #define MAX_TUPLE_SIZE 128
357 static int ray_config(struct pcmcia_device *link)
358 {
359 int ret = 0;
360 int i;
361 struct net_device *dev = (struct net_device *)link->priv;
362 ray_dev_t *local = netdev_priv(dev);
363
364 dev_dbg(&link->dev, "ray_config\n");
365
366 /* Determine card type and firmware version */
367 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n",
368 link->prod_id[0] ? link->prod_id[0] : " ",
369 link->prod_id[1] ? link->prod_id[1] : " ",
370 link->prod_id[2] ? link->prod_id[2] : " ",
371 link->prod_id[3] ? link->prod_id[3] : " ");
372
373 /* Now allocate an interrupt line. Note that this does not
374 actually assign a handler to the interrupt.
375 */
376 ret = pcmcia_request_irq(link, ray_interrupt);
377 if (ret)
378 goto failed;
379 dev->irq = link->irq;
380
381 ret = pcmcia_enable_device(link);
382 if (ret)
383 goto failed;
384
385 /*** Set up 32k window for shared memory (transmit and control) ************/
386 link->resource[2]->flags |= WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
387 link->resource[2]->start = 0;
388 link->resource[2]->end = 0x8000;
389 ret = pcmcia_request_window(link, link->resource[2], ray_mem_speed);
390 if (ret)
391 goto failed;
392 ret = pcmcia_map_mem_page(link, link->resource[2], 0);
393 if (ret)
394 goto failed;
395 local->sram = ioremap(link->resource[2]->start,
396 resource_size(link->resource[2]));
397
398 /*** Set up 16k window for shared memory (receive buffer) ***************/
399 link->resource[3]->flags |=
400 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
401 link->resource[3]->start = 0;
402 link->resource[3]->end = 0x4000;
403 ret = pcmcia_request_window(link, link->resource[3], ray_mem_speed);
404 if (ret)
405 goto failed;
406 ret = pcmcia_map_mem_page(link, link->resource[3], 0x8000);
407 if (ret)
408 goto failed;
409 local->rmem = ioremap(link->resource[3]->start,
410 resource_size(link->resource[3]));
411
412 /*** Set up window for attribute memory ***********************************/
413 link->resource[4]->flags |=
414 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
415 link->resource[4]->start = 0;
416 link->resource[4]->end = 0x1000;
417 ret = pcmcia_request_window(link, link->resource[4], ray_mem_speed);
418 if (ret)
419 goto failed;
420 ret = pcmcia_map_mem_page(link, link->resource[4], 0);
421 if (ret)
422 goto failed;
423 local->amem = ioremap(link->resource[4]->start,
424 resource_size(link->resource[4]));
425
426 dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram);
427 dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem);
428 dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem);
429 if (ray_init(dev) < 0) {
430 ray_release(link);
431 return -ENODEV;
432 }
433
434 SET_NETDEV_DEV(dev, &link->dev);
435 i = register_netdev(dev);
436 if (i != 0) {
437 printk("ray_config register_netdev() failed\n");
438 ray_release(link);
439 return i;
440 }
441
442 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n",
443 dev->name, dev->irq, dev->dev_addr);
444
445 return 0;
446
447 failed:
448 ray_release(link);
449 return -ENODEV;
450 } /* ray_config */
451
452 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
453 {
454 return dev->sram + CCS_BASE;
455 }
456
457 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
458 {
459 /*
460 * This looks nonsensical, since there is a separate
461 * RCS_BASE. But the difference between a "struct rcs"
462 * and a "struct ccs" ends up being in the _index_ off
463 * the base, so the base pointer is the same for both
464 * ccs/rcs.
465 */
466 return dev->sram + CCS_BASE;
467 }
468
469 /*===========================================================================*/
470 static int ray_init(struct net_device *dev)
471 {
472 int i;
473 UCHAR *p;
474 struct ccs __iomem *pccs;
475 ray_dev_t *local = netdev_priv(dev);
476 struct pcmcia_device *link = local->finder;
477 dev_dbg(&link->dev, "ray_init(0x%p)\n", dev);
478 if (!(pcmcia_dev_present(link))) {
479 dev_dbg(&link->dev, "ray_init - device not present\n");
480 return -1;
481 }
482
483 local->net_type = net_type;
484 local->sta_type = TYPE_STA;
485
486 /* Copy the startup results to local memory */
487 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,
488 sizeof(struct startup_res_6));
489
490 /* Check Power up test status and get mac address from card */
491 if (local->startup_res.startup_word != 0x80) {
492 printk(KERN_INFO "ray_init ERROR card status = %2x\n",
493 local->startup_res.startup_word);
494 local->card_status = CARD_INIT_ERROR;
495 return -1;
496 }
497
498 local->fw_ver = local->startup_res.firmware_version[0];
499 local->fw_bld = local->startup_res.firmware_version[1];
500 local->fw_var = local->startup_res.firmware_version[2];
501 dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver,
502 local->fw_bld);
503
504 local->tib_length = 0x20;
505 if ((local->fw_ver == 5) && (local->fw_bld >= 30))
506 local->tib_length = local->startup_res.tib_length;
507 dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length);
508 /* Initialize CCS's to buffer free state */
509 pccs = ccs_base(local);
510 for (i = 0; i < NUMBER_OF_CCS; i++) {
511 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
512 }
513 init_startup_params(local);
514
515 /* copy mac address to startup parameters */
516 if (parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) {
517 p = local->sparm.b4.a_mac_addr;
518 } else {
519 memcpy(&local->sparm.b4.a_mac_addr,
520 &local->startup_res.station_addr, ADDRLEN);
521 p = local->sparm.b4.a_mac_addr;
522 }
523
524 clear_interrupt(local); /* Clear any interrupt from the card */
525 local->card_status = CARD_AWAITING_PARAM;
526 dev_dbg(&link->dev, "ray_init ending\n");
527 return 0;
528 } /* ray_init */
529
530 /*===========================================================================*/
531 /* Download startup parameters to the card and command it to read them */
532 static int dl_startup_params(struct net_device *dev)
533 {
534 int ccsindex;
535 ray_dev_t *local = netdev_priv(dev);
536 struct ccs __iomem *pccs;
537 struct pcmcia_device *link = local->finder;
538
539 dev_dbg(&link->dev, "dl_startup_params entered\n");
540 if (!(pcmcia_dev_present(link))) {
541 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n");
542 return -1;
543 }
544
545 /* Copy parameters to host to ECF area */
546 if (local->fw_ver == 0x55)
547 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
548 sizeof(struct b4_startup_params));
549 else
550 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
551 sizeof(struct b5_startup_params));
552
553 /* Fill in the CCS fields for the ECF */
554 if ((ccsindex = get_free_ccs(local)) < 0)
555 return -1;
556 local->dl_param_ccs = ccsindex;
557 pccs = ccs_base(local) + ccsindex;
558 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
559 dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n",
560 local->dl_param_ccs);
561 /* Interrupt the firmware to process the command */
562 if (interrupt_ecf(local, ccsindex)) {
563 printk(KERN_INFO "ray dl_startup_params failed - "
564 "ECF not ready for intr\n");
565 local->card_status = CARD_DL_PARAM_ERROR;
566 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
567 return -2;
568 }
569 local->card_status = CARD_DL_PARAM;
570 /* Start kernel timer to wait for dl startup to complete. */
571 local->timer.expires = jiffies + HZ / 2;
572 local->timer.data = (long)local;
573 local->timer.function = verify_dl_startup;
574 add_timer(&local->timer);
575 dev_dbg(&link->dev,
576 "ray_cs dl_startup_params started timer for verify_dl_startup\n");
577 return 0;
578 } /* dl_startup_params */
579
580 /*===========================================================================*/
581 static void init_startup_params(ray_dev_t *local)
582 {
583 int i;
584
585 if (country > JAPAN_TEST)
586 country = USA;
587 else if (country < USA)
588 country = USA;
589 /* structure for hop time and beacon period is defined here using
590 * New 802.11D6.1 format. Card firmware is still using old format
591 * until version 6.
592 * Before After
593 * a_hop_time ms byte a_hop_time ms byte
594 * a_hop_time 2s byte a_hop_time ls byte
595 * a_hop_time ls byte a_beacon_period ms byte
596 * a_beacon_period a_beacon_period ls byte
597 *
598 * a_hop_time = uS a_hop_time = KuS
599 * a_beacon_period = hops a_beacon_period = KuS
600 *//* 64ms = 010000 */
601 if (local->fw_ver == 0x55) {
602 memcpy((UCHAR *) &local->sparm.b4, b4_default_startup_parms,
603 sizeof(struct b4_startup_params));
604 /* Translate sane kus input values to old build 4/5 format */
605 /* i = hop time in uS truncated to 3 bytes */
606 i = (hop_dwell * 1024) & 0xffffff;
607 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
608 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
609 local->sparm.b4.a_beacon_period[0] = 0;
610 local->sparm.b4.a_beacon_period[1] =
611 ((beacon_period / hop_dwell) - 1) & 0xff;
612 local->sparm.b4.a_curr_country_code = country;
613 local->sparm.b4.a_hop_pattern_length =
614 hop_pattern_length[(int)country] - 1;
615 if (bc) {
616 local->sparm.b4.a_ack_timeout = 0x50;
617 local->sparm.b4.a_sifs = 0x3f;
618 }
619 } else { /* Version 5 uses real kus values */
620 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms,
621 sizeof(struct b5_startup_params));
622
623 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
624 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
625 local->sparm.b5.a_beacon_period[0] =
626 (beacon_period >> 8) & 0xff;
627 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
628 if (psm)
629 local->sparm.b5.a_power_mgt_state = 1;
630 local->sparm.b5.a_curr_country_code = country;
631 local->sparm.b5.a_hop_pattern_length =
632 hop_pattern_length[(int)country];
633 }
634
635 local->sparm.b4.a_network_type = net_type & 0x01;
636 local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
637
638 if (essid != NULL)
639 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
640 } /* init_startup_params */
641
642 /*===========================================================================*/
643 static void verify_dl_startup(u_long data)
644 {
645 ray_dev_t *local = (ray_dev_t *) data;
646 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
647 UCHAR status;
648 struct pcmcia_device *link = local->finder;
649
650 if (!(pcmcia_dev_present(link))) {
651 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n");
652 return;
653 }
654 #if 0
655 {
656 int i;
657 printk(KERN_DEBUG
658 "verify_dl_startup parameters sent via ccs %d:\n",
659 local->dl_param_ccs);
660 for (i = 0; i < sizeof(struct b5_startup_params); i++) {
661 printk(" %2x",
662 (unsigned int)readb(local->sram +
663 HOST_TO_ECF_BASE + i));
664 }
665 printk("\n");
666 }
667 #endif
668
669 status = readb(&pccs->buffer_status);
670 if (status != CCS_BUFFER_FREE) {
671 printk(KERN_INFO
672 "Download startup params failed. Status = %d\n",
673 status);
674 local->card_status = CARD_DL_PARAM_ERROR;
675 return;
676 }
677 if (local->sparm.b4.a_network_type == ADHOC)
678 start_net((u_long) local);
679 else
680 join_net((u_long) local);
681 } /* end verify_dl_startup */
682
683 /*===========================================================================*/
684 /* Command card to start a network */
685 static void start_net(u_long data)
686 {
687 ray_dev_t *local = (ray_dev_t *) data;
688 struct ccs __iomem *pccs;
689 int ccsindex;
690 struct pcmcia_device *link = local->finder;
691 if (!(pcmcia_dev_present(link))) {
692 dev_dbg(&link->dev, "ray_cs start_net - device not present\n");
693 return;
694 }
695 /* Fill in the CCS fields for the ECF */
696 if ((ccsindex = get_free_ccs(local)) < 0)
697 return;
698 pccs = ccs_base(local) + ccsindex;
699 writeb(CCS_START_NETWORK, &pccs->cmd);
700 writeb(0, &pccs->var.start_network.update_param);
701 /* Interrupt the firmware to process the command */
702 if (interrupt_ecf(local, ccsindex)) {
703 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n");
704 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
705 return;
706 }
707 local->card_status = CARD_DOING_ACQ;
708 } /* end start_net */
709
710 /*===========================================================================*/
711 /* Command card to join a network */
712 static void join_net(u_long data)
713 {
714 ray_dev_t *local = (ray_dev_t *) data;
715
716 struct ccs __iomem *pccs;
717 int ccsindex;
718 struct pcmcia_device *link = local->finder;
719
720 if (!(pcmcia_dev_present(link))) {
721 dev_dbg(&link->dev, "ray_cs join_net - device not present\n");
722 return;
723 }
724 /* Fill in the CCS fields for the ECF */
725 if ((ccsindex = get_free_ccs(local)) < 0)
726 return;
727 pccs = ccs_base(local) + ccsindex;
728 writeb(CCS_JOIN_NETWORK, &pccs->cmd);
729 writeb(0, &pccs->var.join_network.update_param);
730 writeb(0, &pccs->var.join_network.net_initiated);
731 /* Interrupt the firmware to process the command */
732 if (interrupt_ecf(local, ccsindex)) {
733 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n");
734 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
735 return;
736 }
737 local->card_status = CARD_DOING_ACQ;
738 }
739
740
741 static void ray_release(struct pcmcia_device *link)
742 {
743 struct net_device *dev = link->priv;
744 ray_dev_t *local = netdev_priv(dev);
745
746 dev_dbg(&link->dev, "ray_release\n");
747
748 del_timer(&local->timer);
749
750 iounmap(local->sram);
751 iounmap(local->rmem);
752 iounmap(local->amem);
753 pcmcia_disable_device(link);
754
755 dev_dbg(&link->dev, "ray_release ending\n");
756 }
757
758 static int ray_suspend(struct pcmcia_device *link)
759 {
760 struct net_device *dev = link->priv;
761
762 if (link->open)
763 netif_device_detach(dev);
764
765 return 0;
766 }
767
768 static int ray_resume(struct pcmcia_device *link)
769 {
770 struct net_device *dev = link->priv;
771
772 if (link->open) {
773 ray_reset(dev);
774 netif_device_attach(dev);
775 }
776
777 return 0;
778 }
779
780 /*===========================================================================*/
781 static int ray_dev_init(struct net_device *dev)
782 {
783 #ifdef RAY_IMMEDIATE_INIT
784 int i;
785 #endif /* RAY_IMMEDIATE_INIT */
786 ray_dev_t *local = netdev_priv(dev);
787 struct pcmcia_device *link = local->finder;
788
789 dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev);
790 if (!(pcmcia_dev_present(link))) {
791 dev_dbg(&link->dev, "ray_dev_init - device not present\n");
792 return -1;
793 }
794 #ifdef RAY_IMMEDIATE_INIT
795 /* Download startup parameters */
796 if ((i = dl_startup_params(dev)) < 0) {
797 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
798 "returns 0x%x\n", i);
799 return -1;
800 }
801 #else /* RAY_IMMEDIATE_INIT */
802 /* Postpone the card init so that we can still configure the card,
803 * for example using the Wireless Extensions. The init will happen
804 * in ray_open() - Jean II */
805 dev_dbg(&link->dev,
806 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
807 local->card_status);
808 #endif /* RAY_IMMEDIATE_INIT */
809
810 /* copy mac and broadcast addresses to linux device */
811 memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
812 memset(dev->broadcast, 0xff, ETH_ALEN);
813
814 dev_dbg(&link->dev, "ray_dev_init ending\n");
815 return 0;
816 }
817
818 /*===========================================================================*/
819 static int ray_dev_config(struct net_device *dev, struct ifmap *map)
820 {
821 ray_dev_t *local = netdev_priv(dev);
822 struct pcmcia_device *link = local->finder;
823 /* Dummy routine to satisfy device structure */
824 dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map);
825 if (!(pcmcia_dev_present(link))) {
826 dev_dbg(&link->dev, "ray_dev_config - device not present\n");
827 return -1;
828 }
829
830 return 0;
831 }
832
833 /*===========================================================================*/
834 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
835 struct net_device *dev)
836 {
837 ray_dev_t *local = netdev_priv(dev);
838 struct pcmcia_device *link = local->finder;
839 short length = skb->len;
840
841 if (!pcmcia_dev_present(link)) {
842 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n");
843 dev_kfree_skb(skb);
844 return NETDEV_TX_OK;
845 }
846
847 dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
848 if (local->authentication_state == NEED_TO_AUTH) {
849 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n");
850 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
851 local->authentication_state = AUTHENTICATED;
852 netif_stop_queue(dev);
853 return NETDEV_TX_BUSY;
854 }
855 }
856
857 if (length < ETH_ZLEN) {
858 if (skb_padto(skb, ETH_ZLEN))
859 return NETDEV_TX_OK;
860 length = ETH_ZLEN;
861 }
862 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) {
863 case XMIT_NO_CCS:
864 case XMIT_NEED_AUTH:
865 netif_stop_queue(dev);
866 return NETDEV_TX_BUSY;
867 case XMIT_NO_INTR:
868 case XMIT_MSG_BAD:
869 case XMIT_OK:
870 default:
871 dev_kfree_skb(skb);
872 }
873
874 return NETDEV_TX_OK;
875 } /* ray_dev_start_xmit */
876
877 /*===========================================================================*/
878 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
879 UCHAR msg_type)
880 {
881 ray_dev_t *local = netdev_priv(dev);
882 struct ccs __iomem *pccs;
883 int ccsindex;
884 int offset;
885 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */
886 short int addr; /* Address of xmit buffer in card space */
887
888 pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev);
889 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) {
890 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",
891 len);
892 return XMIT_MSG_BAD;
893 }
894 switch (ccsindex = get_free_tx_ccs(local)) {
895 case ECCSBUSY:
896 pr_debug("ray_hw_xmit tx_ccs table busy\n");
897 case ECCSFULL:
898 pr_debug("ray_hw_xmit No free tx ccs\n");
899 case ECARDGONE:
900 netif_stop_queue(dev);
901 return XMIT_NO_CCS;
902 default:
903 break;
904 }
905 addr = TX_BUF_BASE + (ccsindex << 11);
906
907 if (msg_type == DATA_TYPE) {
908 local->stats.tx_bytes += len;
909 local->stats.tx_packets++;
910 }
911
912 ptx = local->sram + addr;
913
914 ray_build_header(local, ptx, msg_type, data);
915 if (translate) {
916 offset = translate_frame(local, ptx, data, len);
917 } else { /* Encapsulate frame */
918 /* TBD TIB length will move address of ptx->var */
919 memcpy_toio(&ptx->var, data, len);
920 offset = 0;
921 }
922
923 /* fill in the CCS */
924 pccs = ccs_base(local) + ccsindex;
925 len += TX_HEADER_LENGTH + offset;
926 writeb(CCS_TX_REQUEST, &pccs->cmd);
927 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
928 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
929 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
930 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
931 /* TBD still need psm_cam? */
932 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
933 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
934 writeb(0, &pccs->var.tx_request.antenna);
935 pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n",
936 local->net_default_tx_rate);
937
938 /* Interrupt the firmware to process the command */
939 if (interrupt_ecf(local, ccsindex)) {
940 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n");
941 /* TBD very inefficient to copy packet to buffer, and then not
942 send it, but the alternative is to queue the messages and that
943 won't be done for a while. Maybe set tbusy until a CCS is free?
944 */
945 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
946 return XMIT_NO_INTR;
947 }
948 return XMIT_OK;
949 } /* end ray_hw_xmit */
950
951 /*===========================================================================*/
952 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
953 unsigned char *data, int len)
954 {
955 __be16 proto = ((struct ethhdr *)data)->h_proto;
956 if (ntohs(proto) >= 1536) { /* DIX II ethernet frame */
957 pr_debug("ray_cs translate_frame DIX II\n");
958 /* Copy LLC header to card buffer */
959 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
960 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc),
961 (UCHAR *) &proto, 2);
962 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
963 /* This is the selective translation table, only 2 entries */
964 writeb(0xf8,
965 &((struct snaphdr_t __iomem *)ptx->var)->org[3]);
966 }
967 /* Copy body of ethernet packet without ethernet header */
968 memcpy_toio((void __iomem *)&ptx->var +
969 sizeof(struct snaphdr_t), data + ETH_HLEN,
970 len - ETH_HLEN);
971 return (int)sizeof(struct snaphdr_t) - ETH_HLEN;
972 } else { /* already 802 type, and proto is length */
973 pr_debug("ray_cs translate_frame 802\n");
974 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
975 pr_debug("ray_cs translate_frame evil IPX\n");
976 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
977 return 0 - ETH_HLEN;
978 }
979 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
980 return 0 - ETH_HLEN;
981 }
982 /* TBD do other frame types */
983 } /* end translate_frame */
984
985 /*===========================================================================*/
986 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
987 UCHAR msg_type, unsigned char *data)
988 {
989 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
990 /*** IEEE 802.11 Address field assignments *************
991 TODS FROMDS addr_1 addr_2 addr_3 addr_4
992 Adhoc 0 0 dest src (terminal) BSSID N/A
993 AP to Terminal 0 1 dest AP(BSSID) source N/A
994 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A
995 AP to AP 1 1 dest AP src AP dest source
996 *******************************************************/
997 if (local->net_type == ADHOC) {
998 writeb(0, &ptx->mac.frame_ctl_2);
999 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest,
1000 2 * ADDRLEN);
1001 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
1002 } else { /* infrastructure */
1003
1004 if (local->sparm.b4.a_acting_as_ap_status) {
1005 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
1006 memcpy_toio(ptx->mac.addr_1,
1007 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1008 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
1009 memcpy_toio(ptx->mac.addr_3,
1010 ((struct ethhdr *)data)->h_source, ADDRLEN);
1011 } else { /* Terminal */
1012
1013 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
1014 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1015 memcpy_toio(ptx->mac.addr_2,
1016 ((struct ethhdr *)data)->h_source, ADDRLEN);
1017 memcpy_toio(ptx->mac.addr_3,
1018 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1019 }
1020 }
1021 } /* end encapsulate_frame */
1022
1023 /*====================================================================*/
1024
1025 /*------------------------------------------------------------------*/
1026 /*
1027 * Wireless Handler : get protocol name
1028 */
1029 static int ray_get_name(struct net_device *dev, struct iw_request_info *info,
1030 union iwreq_data *wrqu, char *extra)
1031 {
1032 strcpy(wrqu->name, "IEEE 802.11-FH");
1033 return 0;
1034 }
1035
1036 /*------------------------------------------------------------------*/
1037 /*
1038 * Wireless Handler : set frequency
1039 */
1040 static int ray_set_freq(struct net_device *dev, struct iw_request_info *info,
1041 union iwreq_data *wrqu, char *extra)
1042 {
1043 ray_dev_t *local = netdev_priv(dev);
1044 int err = -EINPROGRESS; /* Call commit handler */
1045
1046 /* Reject if card is already initialised */
1047 if (local->card_status != CARD_AWAITING_PARAM)
1048 return -EBUSY;
1049
1050 /* Setting by channel number */
1051 if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0))
1052 err = -EOPNOTSUPP;
1053 else
1054 local->sparm.b5.a_hop_pattern = wrqu->freq.m;
1055
1056 return err;
1057 }
1058
1059 /*------------------------------------------------------------------*/
1060 /*
1061 * Wireless Handler : get frequency
1062 */
1063 static int ray_get_freq(struct net_device *dev, struct iw_request_info *info,
1064 union iwreq_data *wrqu, char *extra)
1065 {
1066 ray_dev_t *local = netdev_priv(dev);
1067
1068 wrqu->freq.m = local->sparm.b5.a_hop_pattern;
1069 wrqu->freq.e = 0;
1070 return 0;
1071 }
1072
1073 /*------------------------------------------------------------------*/
1074 /*
1075 * Wireless Handler : set ESSID
1076 */
1077 static int ray_set_essid(struct net_device *dev, struct iw_request_info *info,
1078 union iwreq_data *wrqu, char *extra)
1079 {
1080 ray_dev_t *local = netdev_priv(dev);
1081
1082 /* Reject if card is already initialised */
1083 if (local->card_status != CARD_AWAITING_PARAM)
1084 return -EBUSY;
1085
1086 /* Check if we asked for `any' */
1087 if (wrqu->essid.flags == 0)
1088 /* Corey : can you do that ? */
1089 return -EOPNOTSUPP;
1090
1091 /* Check the size of the string */
1092 if (wrqu->essid.length > IW_ESSID_MAX_SIZE)
1093 return -E2BIG;
1094
1095 /* Set the ESSID in the card */
1096 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1097 memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length);
1098
1099 return -EINPROGRESS; /* Call commit handler */
1100 }
1101
1102 /*------------------------------------------------------------------*/
1103 /*
1104 * Wireless Handler : get ESSID
1105 */
1106 static int ray_get_essid(struct net_device *dev, struct iw_request_info *info,
1107 union iwreq_data *wrqu, char *extra)
1108 {
1109 ray_dev_t *local = netdev_priv(dev);
1110
1111 /* Get the essid that was set */
1112 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1113
1114 /* Push it out ! */
1115 wrqu->essid.length = strlen(extra);
1116 wrqu->essid.flags = 1; /* active */
1117
1118 return 0;
1119 }
1120
1121 /*------------------------------------------------------------------*/
1122 /*
1123 * Wireless Handler : get AP address
1124 */
1125 static int ray_get_wap(struct net_device *dev, struct iw_request_info *info,
1126 union iwreq_data *wrqu, char *extra)
1127 {
1128 ray_dev_t *local = netdev_priv(dev);
1129
1130 memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN);
1131 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1132
1133 return 0;
1134 }
1135
1136 /*------------------------------------------------------------------*/
1137 /*
1138 * Wireless Handler : set Bit-Rate
1139 */
1140 static int ray_set_rate(struct net_device *dev, struct iw_request_info *info,
1141 union iwreq_data *wrqu, char *extra)
1142 {
1143 ray_dev_t *local = netdev_priv(dev);
1144
1145 /* Reject if card is already initialised */
1146 if (local->card_status != CARD_AWAITING_PARAM)
1147 return -EBUSY;
1148
1149 /* Check if rate is in range */
1150 if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000))
1151 return -EINVAL;
1152
1153 /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1154 if ((local->fw_ver == 0x55) && /* Please check */
1155 (wrqu->bitrate.value == 2000000))
1156 local->net_default_tx_rate = 3;
1157 else
1158 local->net_default_tx_rate = wrqu->bitrate.value / 500000;
1159
1160 return 0;
1161 }
1162
1163 /*------------------------------------------------------------------*/
1164 /*
1165 * Wireless Handler : get Bit-Rate
1166 */
1167 static int ray_get_rate(struct net_device *dev, struct iw_request_info *info,
1168 union iwreq_data *wrqu, char *extra)
1169 {
1170 ray_dev_t *local = netdev_priv(dev);
1171
1172 if (local->net_default_tx_rate == 3)
1173 wrqu->bitrate.value = 2000000; /* Hum... */
1174 else
1175 wrqu->bitrate.value = local->net_default_tx_rate * 500000;
1176 wrqu->bitrate.fixed = 0; /* We are in auto mode */
1177
1178 return 0;
1179 }
1180
1181 /*------------------------------------------------------------------*/
1182 /*
1183 * Wireless Handler : set RTS threshold
1184 */
1185 static int ray_set_rts(struct net_device *dev, struct iw_request_info *info,
1186 union iwreq_data *wrqu, char *extra)
1187 {
1188 ray_dev_t *local = netdev_priv(dev);
1189 int rthr = wrqu->rts.value;
1190
1191 /* Reject if card is already initialised */
1192 if (local->card_status != CARD_AWAITING_PARAM)
1193 return -EBUSY;
1194
1195 /* if(wrq->u.rts.fixed == 0) we should complain */
1196 if (wrqu->rts.disabled)
1197 rthr = 32767;
1198 else {
1199 if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */
1200 return -EINVAL;
1201 }
1202 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1203 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1204
1205 return -EINPROGRESS; /* Call commit handler */
1206 }
1207
1208 /*------------------------------------------------------------------*/
1209 /*
1210 * Wireless Handler : get RTS threshold
1211 */
1212 static int ray_get_rts(struct net_device *dev, struct iw_request_info *info,
1213 union iwreq_data *wrqu, char *extra)
1214 {
1215 ray_dev_t *local = netdev_priv(dev);
1216
1217 wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8)
1218 + local->sparm.b5.a_rts_threshold[1];
1219 wrqu->rts.disabled = (wrqu->rts.value == 32767);
1220 wrqu->rts.fixed = 1;
1221
1222 return 0;
1223 }
1224
1225 /*------------------------------------------------------------------*/
1226 /*
1227 * Wireless Handler : set Fragmentation threshold
1228 */
1229 static int ray_set_frag(struct net_device *dev, struct iw_request_info *info,
1230 union iwreq_data *wrqu, char *extra)
1231 {
1232 ray_dev_t *local = netdev_priv(dev);
1233 int fthr = wrqu->frag.value;
1234
1235 /* Reject if card is already initialised */
1236 if (local->card_status != CARD_AWAITING_PARAM)
1237 return -EBUSY;
1238
1239 /* if(wrq->u.frag.fixed == 0) should complain */
1240 if (wrqu->frag.disabled)
1241 fthr = 32767;
1242 else {
1243 if ((fthr < 256) || (fthr > 2347)) /* To check out ! */
1244 return -EINVAL;
1245 }
1246 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1247 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1248
1249 return -EINPROGRESS; /* Call commit handler */
1250 }
1251
1252 /*------------------------------------------------------------------*/
1253 /*
1254 * Wireless Handler : get Fragmentation threshold
1255 */
1256 static int ray_get_frag(struct net_device *dev, struct iw_request_info *info,
1257 union iwreq_data *wrqu, char *extra)
1258 {
1259 ray_dev_t *local = netdev_priv(dev);
1260
1261 wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8)
1262 + local->sparm.b5.a_frag_threshold[1];
1263 wrqu->frag.disabled = (wrqu->frag.value == 32767);
1264 wrqu->frag.fixed = 1;
1265
1266 return 0;
1267 }
1268
1269 /*------------------------------------------------------------------*/
1270 /*
1271 * Wireless Handler : set Mode of Operation
1272 */
1273 static int ray_set_mode(struct net_device *dev, struct iw_request_info *info,
1274 union iwreq_data *wrqu, char *extra)
1275 {
1276 ray_dev_t *local = netdev_priv(dev);
1277 int err = -EINPROGRESS; /* Call commit handler */
1278 char card_mode = 1;
1279
1280 /* Reject if card is already initialised */
1281 if (local->card_status != CARD_AWAITING_PARAM)
1282 return -EBUSY;
1283
1284 switch (wrqu->mode) {
1285 case IW_MODE_ADHOC:
1286 card_mode = 0;
1287 /* Fall through */
1288 case IW_MODE_INFRA:
1289 local->sparm.b5.a_network_type = card_mode;
1290 break;
1291 default:
1292 err = -EINVAL;
1293 }
1294
1295 return err;
1296 }
1297
1298 /*------------------------------------------------------------------*/
1299 /*
1300 * Wireless Handler : get Mode of Operation
1301 */
1302 static int ray_get_mode(struct net_device *dev, struct iw_request_info *info,
1303 union iwreq_data *wrqu, char *extra)
1304 {
1305 ray_dev_t *local = netdev_priv(dev);
1306
1307 if (local->sparm.b5.a_network_type)
1308 wrqu->mode = IW_MODE_INFRA;
1309 else
1310 wrqu->mode = IW_MODE_ADHOC;
1311
1312 return 0;
1313 }
1314
1315 /*------------------------------------------------------------------*/
1316 /*
1317 * Wireless Handler : get range info
1318 */
1319 static int ray_get_range(struct net_device *dev, struct iw_request_info *info,
1320 union iwreq_data *wrqu, char *extra)
1321 {
1322 struct iw_range *range = (struct iw_range *)extra;
1323
1324 memset(range, 0, sizeof(struct iw_range));
1325
1326 /* Set the length (very important for backward compatibility) */
1327 wrqu->data.length = sizeof(struct iw_range);
1328
1329 /* Set the Wireless Extension versions */
1330 range->we_version_compiled = WIRELESS_EXT;
1331 range->we_version_source = 9;
1332
1333 /* Set information in the range struct */
1334 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */
1335 range->num_channels = hop_pattern_length[(int)country];
1336 range->num_frequency = 0;
1337 range->max_qual.qual = 0;
1338 range->max_qual.level = 255; /* What's the correct value ? */
1339 range->max_qual.noise = 255; /* Idem */
1340 range->num_bitrates = 2;
1341 range->bitrate[0] = 1000000; /* 1 Mb/s */
1342 range->bitrate[1] = 2000000; /* 2 Mb/s */
1343 return 0;
1344 }
1345
1346 /*------------------------------------------------------------------*/
1347 /*
1348 * Wireless Private Handler : set framing mode
1349 */
1350 static int ray_set_framing(struct net_device *dev, struct iw_request_info *info,
1351 union iwreq_data *wrqu, char *extra)
1352 {
1353 translate = *(extra); /* Set framing mode */
1354
1355 return 0;
1356 }
1357
1358 /*------------------------------------------------------------------*/
1359 /*
1360 * Wireless Private Handler : get framing mode
1361 */
1362 static int ray_get_framing(struct net_device *dev, struct iw_request_info *info,
1363 union iwreq_data *wrqu, char *extra)
1364 {
1365 *(extra) = translate;
1366
1367 return 0;
1368 }
1369
1370 /*------------------------------------------------------------------*/
1371 /*
1372 * Wireless Private Handler : get country
1373 */
1374 static int ray_get_country(struct net_device *dev, struct iw_request_info *info,
1375 union iwreq_data *wrqu, char *extra)
1376 {
1377 *(extra) = country;
1378
1379 return 0;
1380 }
1381
1382 /*------------------------------------------------------------------*/
1383 /*
1384 * Commit handler : called after a bunch of SET operations
1385 */
1386 static int ray_commit(struct net_device *dev, struct iw_request_info *info,
1387 union iwreq_data *wrqu, char *extra)
1388 {
1389 return 0;
1390 }
1391
1392 /*------------------------------------------------------------------*/
1393 /*
1394 * Stats handler : return Wireless Stats
1395 */
1396 static iw_stats *ray_get_wireless_stats(struct net_device *dev)
1397 {
1398 ray_dev_t *local = netdev_priv(dev);
1399 struct pcmcia_device *link = local->finder;
1400 struct status __iomem *p = local->sram + STATUS_BASE;
1401
1402 local->wstats.status = local->card_status;
1403 #ifdef WIRELESS_SPY
1404 if ((local->spy_data.spy_number > 0)
1405 && (local->sparm.b5.a_network_type == 0)) {
1406 /* Get it from the first node in spy list */
1407 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1408 local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1409 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1410 local->wstats.qual.updated =
1411 local->spy_data.spy_stat[0].updated;
1412 }
1413 #endif /* WIRELESS_SPY */
1414
1415 if (pcmcia_dev_present(link)) {
1416 local->wstats.qual.noise = readb(&p->rxnoise);
1417 local->wstats.qual.updated |= 4;
1418 }
1419
1420 return &local->wstats;
1421 } /* end ray_get_wireless_stats */
1422
1423 /*------------------------------------------------------------------*/
1424 /*
1425 * Structures to export the Wireless Handlers
1426 */
1427
1428 static const iw_handler ray_handler[] = {
1429 IW_HANDLER(SIOCSIWCOMMIT, ray_commit),
1430 IW_HANDLER(SIOCGIWNAME, ray_get_name),
1431 IW_HANDLER(SIOCSIWFREQ, ray_set_freq),
1432 IW_HANDLER(SIOCGIWFREQ, ray_get_freq),
1433 IW_HANDLER(SIOCSIWMODE, ray_set_mode),
1434 IW_HANDLER(SIOCGIWMODE, ray_get_mode),
1435 IW_HANDLER(SIOCGIWRANGE, ray_get_range),
1436 #ifdef WIRELESS_SPY
1437 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1438 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1439 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1440 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1441 #endif /* WIRELESS_SPY */
1442 IW_HANDLER(SIOCGIWAP, ray_get_wap),
1443 IW_HANDLER(SIOCSIWESSID, ray_set_essid),
1444 IW_HANDLER(SIOCGIWESSID, ray_get_essid),
1445 IW_HANDLER(SIOCSIWRATE, ray_set_rate),
1446 IW_HANDLER(SIOCGIWRATE, ray_get_rate),
1447 IW_HANDLER(SIOCSIWRTS, ray_set_rts),
1448 IW_HANDLER(SIOCGIWRTS, ray_get_rts),
1449 IW_HANDLER(SIOCSIWFRAG, ray_set_frag),
1450 IW_HANDLER(SIOCGIWFRAG, ray_get_frag),
1451 };
1452
1453 #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */
1454 #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */
1455 #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */
1456
1457 static const iw_handler ray_private_handler[] = {
1458 [0] = ray_set_framing,
1459 [1] = ray_get_framing,
1460 [3] = ray_get_country,
1461 };
1462
1463 static const struct iw_priv_args ray_private_args[] = {
1464 /* cmd, set_args, get_args, name */
1465 {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0,
1466 "set_framing"},
1467 {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1468 "get_framing"},
1469 {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1470 "get_country"},
1471 };
1472
1473 static const struct iw_handler_def ray_handler_def = {
1474 .num_standard = ARRAY_SIZE(ray_handler),
1475 .num_private = ARRAY_SIZE(ray_private_handler),
1476 .num_private_args = ARRAY_SIZE(ray_private_args),
1477 .standard = ray_handler,
1478 .private = ray_private_handler,
1479 .private_args = ray_private_args,
1480 .get_wireless_stats = ray_get_wireless_stats,
1481 };
1482
1483 /*===========================================================================*/
1484 static int ray_open(struct net_device *dev)
1485 {
1486 ray_dev_t *local = netdev_priv(dev);
1487 struct pcmcia_device *link;
1488 link = local->finder;
1489
1490 dev_dbg(&link->dev, "ray_open('%s')\n", dev->name);
1491
1492 if (link->open == 0)
1493 local->num_multi = 0;
1494 link->open++;
1495
1496 /* If the card is not started, time to start it ! - Jean II */
1497 if (local->card_status == CARD_AWAITING_PARAM) {
1498 int i;
1499
1500 dev_dbg(&link->dev, "ray_open: doing init now !\n");
1501
1502 /* Download startup parameters */
1503 if ((i = dl_startup_params(dev)) < 0) {
1504 printk(KERN_INFO
1505 "ray_dev_init dl_startup_params failed - "
1506 "returns 0x%x\n", i);
1507 return -1;
1508 }
1509 }
1510
1511 if (sniffer)
1512 netif_stop_queue(dev);
1513 else
1514 netif_start_queue(dev);
1515
1516 dev_dbg(&link->dev, "ray_open ending\n");
1517 return 0;
1518 } /* end ray_open */
1519
1520 /*===========================================================================*/
1521 static int ray_dev_close(struct net_device *dev)
1522 {
1523 ray_dev_t *local = netdev_priv(dev);
1524 struct pcmcia_device *link;
1525 link = local->finder;
1526
1527 dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name);
1528
1529 link->open--;
1530 netif_stop_queue(dev);
1531
1532 /* In here, we should stop the hardware (stop card from beeing active)
1533 * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1534 * card is closed we can chage its configuration.
1535 * Probably also need a COR reset to get sane state - Jean II */
1536
1537 return 0;
1538 } /* end ray_dev_close */
1539
1540 /*===========================================================================*/
1541 static void ray_reset(struct net_device *dev)
1542 {
1543 pr_debug("ray_reset entered\n");
1544 }
1545
1546 /*===========================================================================*/
1547 /* Cause a firmware interrupt if it is ready for one */
1548 /* Return nonzero if not ready */
1549 static int interrupt_ecf(ray_dev_t *local, int ccs)
1550 {
1551 int i = 50;
1552 struct pcmcia_device *link = local->finder;
1553
1554 if (!(pcmcia_dev_present(link))) {
1555 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n");
1556 return -1;
1557 }
1558 dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs);
1559
1560 while (i &&
1561 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) &
1562 ECF_INTR_SET))
1563 i--;
1564 if (i == 0) {
1565 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n");
1566 return -1;
1567 }
1568 /* Fill the mailbox, then kick the card */
1569 writeb(ccs, local->sram + SCB_BASE);
1570 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1571 return 0;
1572 } /* interrupt_ecf */
1573
1574 /*===========================================================================*/
1575 /* Get next free transmit CCS */
1576 /* Return - index of current tx ccs */
1577 static int get_free_tx_ccs(ray_dev_t *local)
1578 {
1579 int i;
1580 struct ccs __iomem *pccs = ccs_base(local);
1581 struct pcmcia_device *link = local->finder;
1582
1583 if (!(pcmcia_dev_present(link))) {
1584 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n");
1585 return ECARDGONE;
1586 }
1587
1588 if (test_and_set_bit(0, &local->tx_ccs_lock)) {
1589 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n");
1590 return ECCSBUSY;
1591 }
1592
1593 for (i = 0; i < NUMBER_OF_TX_CCS; i++) {
1594 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1595 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1596 writeb(CCS_END_LIST, &(pccs + i)->link);
1597 local->tx_ccs_lock = 0;
1598 return i;
1599 }
1600 }
1601 local->tx_ccs_lock = 0;
1602 dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n");
1603 return ECCSFULL;
1604 } /* get_free_tx_ccs */
1605
1606 /*===========================================================================*/
1607 /* Get next free CCS */
1608 /* Return - index of current ccs */
1609 static int get_free_ccs(ray_dev_t *local)
1610 {
1611 int i;
1612 struct ccs __iomem *pccs = ccs_base(local);
1613 struct pcmcia_device *link = local->finder;
1614
1615 if (!(pcmcia_dev_present(link))) {
1616 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n");
1617 return ECARDGONE;
1618 }
1619 if (test_and_set_bit(0, &local->ccs_lock)) {
1620 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n");
1621 return ECCSBUSY;
1622 }
1623
1624 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1625 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1626 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1627 writeb(CCS_END_LIST, &(pccs + i)->link);
1628 local->ccs_lock = 0;
1629 return i;
1630 }
1631 }
1632 local->ccs_lock = 0;
1633 dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n");
1634 return ECCSFULL;
1635 } /* get_free_ccs */
1636
1637 /*===========================================================================*/
1638 static void authenticate_timeout(u_long data)
1639 {
1640 ray_dev_t *local = (ray_dev_t *) data;
1641 del_timer(&local->timer);
1642 printk(KERN_INFO "ray_cs Authentication with access point failed"
1643 " - timeout\n");
1644 join_net((u_long) local);
1645 }
1646
1647 /*===========================================================================*/
1648 static int parse_addr(char *in_str, UCHAR *out)
1649 {
1650 int len;
1651 int i, j, k;
1652 int status;
1653
1654 if (in_str == NULL)
1655 return 0;
1656 if ((len = strlen(in_str)) < 2)
1657 return 0;
1658 memset(out, 0, ADDRLEN);
1659
1660 status = 1;
1661 j = len - 1;
1662 if (j > 12)
1663 j = 12;
1664 i = 5;
1665
1666 while (j > 0) {
1667 if ((k = hex_to_bin(in_str[j--])) != -1)
1668 out[i] = k;
1669 else
1670 return 0;
1671
1672 if (j == 0)
1673 break;
1674 if ((k = hex_to_bin(in_str[j--])) != -1)
1675 out[i] += k << 4;
1676 else
1677 return 0;
1678 if (!i--)
1679 break;
1680 }
1681 return status;
1682 }
1683
1684 /*===========================================================================*/
1685 static struct net_device_stats *ray_get_stats(struct net_device *dev)
1686 {
1687 ray_dev_t *local = netdev_priv(dev);
1688 struct pcmcia_device *link = local->finder;
1689 struct status __iomem *p = local->sram + STATUS_BASE;
1690 if (!(pcmcia_dev_present(link))) {
1691 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n");
1692 return &local->stats;
1693 }
1694 if (readb(&p->mrx_overflow_for_host)) {
1695 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1696 writeb(0, &p->mrx_overflow);
1697 writeb(0, &p->mrx_overflow_for_host);
1698 }
1699 if (readb(&p->mrx_checksum_error_for_host)) {
1700 local->stats.rx_crc_errors +=
1701 swab16(readw(&p->mrx_checksum_error));
1702 writeb(0, &p->mrx_checksum_error);
1703 writeb(0, &p->mrx_checksum_error_for_host);
1704 }
1705 if (readb(&p->rx_hec_error_for_host)) {
1706 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1707 writeb(0, &p->rx_hec_error);
1708 writeb(0, &p->rx_hec_error_for_host);
1709 }
1710 return &local->stats;
1711 }
1712
1713 /*===========================================================================*/
1714 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value,
1715 int len)
1716 {
1717 ray_dev_t *local = netdev_priv(dev);
1718 struct pcmcia_device *link = local->finder;
1719 int ccsindex;
1720 int i;
1721 struct ccs __iomem *pccs;
1722
1723 if (!(pcmcia_dev_present(link))) {
1724 dev_dbg(&link->dev, "ray_update_parm - device not present\n");
1725 return;
1726 }
1727
1728 if ((ccsindex = get_free_ccs(local)) < 0) {
1729 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n");
1730 return;
1731 }
1732 pccs = ccs_base(local) + ccsindex;
1733 writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1734 writeb(objid, &pccs->var.update_param.object_id);
1735 writeb(1, &pccs->var.update_param.number_objects);
1736 writeb(0, &pccs->var.update_param.failure_cause);
1737 for (i = 0; i < len; i++) {
1738 writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1739 }
1740 /* Interrupt the firmware to process the command */
1741 if (interrupt_ecf(local, ccsindex)) {
1742 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
1743 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1744 }
1745 }
1746
1747 /*===========================================================================*/
1748 static void ray_update_multi_list(struct net_device *dev, int all)
1749 {
1750 int ccsindex;
1751 struct ccs __iomem *pccs;
1752 ray_dev_t *local = netdev_priv(dev);
1753 struct pcmcia_device *link = local->finder;
1754 void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1755
1756 if (!(pcmcia_dev_present(link))) {
1757 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n");
1758 return;
1759 } else
1760 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev);
1761 if ((ccsindex = get_free_ccs(local)) < 0) {
1762 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n");
1763 return;
1764 }
1765 pccs = ccs_base(local) + ccsindex;
1766 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1767
1768 if (all) {
1769 writeb(0xff, &pccs->var);
1770 local->num_multi = 0xff;
1771 } else {
1772 struct netdev_hw_addr *ha;
1773 int i = 0;
1774
1775 /* Copy the kernel's list of MC addresses to card */
1776 netdev_for_each_mc_addr(ha, dev) {
1777 memcpy_toio(p, ha->addr, ETH_ALEN);
1778 dev_dbg(&link->dev, "ray_update_multi add addr %pm\n",
1779 ha->addr);
1780 p += ETH_ALEN;
1781 i++;
1782 }
1783 if (i > 256 / ADDRLEN)
1784 i = 256 / ADDRLEN;
1785 writeb((UCHAR) i, &pccs->var);
1786 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i);
1787 /* Interrupt the firmware to process the command */
1788 local->num_multi = i;
1789 }
1790 if (interrupt_ecf(local, ccsindex)) {
1791 dev_dbg(&link->dev,
1792 "ray_cs update_multi failed - ECF not ready for intr\n");
1793 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1794 }
1795 } /* end ray_update_multi_list */
1796
1797 /*===========================================================================*/
1798 static void set_multicast_list(struct net_device *dev)
1799 {
1800 ray_dev_t *local = netdev_priv(dev);
1801 UCHAR promisc;
1802
1803 pr_debug("ray_cs set_multicast_list(%p)\n", dev);
1804
1805 if (dev->flags & IFF_PROMISC) {
1806 if (local->sparm.b5.a_promiscuous_mode == 0) {
1807 pr_debug("ray_cs set_multicast_list promisc on\n");
1808 local->sparm.b5.a_promiscuous_mode = 1;
1809 promisc = 1;
1810 ray_update_parm(dev, OBJID_promiscuous_mode,
1811 &promisc, sizeof(promisc));
1812 }
1813 } else {
1814 if (local->sparm.b5.a_promiscuous_mode == 1) {
1815 pr_debug("ray_cs set_multicast_list promisc off\n");
1816 local->sparm.b5.a_promiscuous_mode = 0;
1817 promisc = 0;
1818 ray_update_parm(dev, OBJID_promiscuous_mode,
1819 &promisc, sizeof(promisc));
1820 }
1821 }
1822
1823 if (dev->flags & IFF_ALLMULTI)
1824 ray_update_multi_list(dev, 1);
1825 else {
1826 if (local->num_multi != netdev_mc_count(dev))
1827 ray_update_multi_list(dev, 0);
1828 }
1829 } /* end set_multicast_list */
1830
1831 /*=============================================================================
1832 * All routines below here are run at interrupt time.
1833 =============================================================================*/
1834 static irqreturn_t ray_interrupt(int irq, void *dev_id)
1835 {
1836 struct net_device *dev = (struct net_device *)dev_id;
1837 struct pcmcia_device *link;
1838 ray_dev_t *local;
1839 struct ccs __iomem *pccs;
1840 struct rcs __iomem *prcs;
1841 UCHAR rcsindex;
1842 UCHAR tmp;
1843 UCHAR cmd;
1844 UCHAR status;
1845
1846 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */
1847 return IRQ_NONE;
1848
1849 pr_debug("ray_cs: interrupt for *dev=%p\n", dev);
1850
1851 local = netdev_priv(dev);
1852 link = (struct pcmcia_device *)local->finder;
1853 if (!pcmcia_dev_present(link)) {
1854 pr_debug(
1855 "ray_cs interrupt from device not present or suspended.\n");
1856 return IRQ_NONE;
1857 }
1858 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1859
1860 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
1861 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex);
1862 clear_interrupt(local);
1863 return IRQ_HANDLED;
1864 }
1865 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */
1866 pccs = ccs_base(local) + rcsindex;
1867 cmd = readb(&pccs->cmd);
1868 status = readb(&pccs->buffer_status);
1869 switch (cmd) {
1870 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */
1871 del_timer(&local->timer);
1872 if (status == CCS_COMMAND_COMPLETE) {
1873 dev_dbg(&link->dev,
1874 "ray_cs interrupt download_startup_parameters OK\n");
1875 } else {
1876 dev_dbg(&link->dev,
1877 "ray_cs interrupt download_startup_parameters fail\n");
1878 }
1879 break;
1880 case CCS_UPDATE_PARAMS:
1881 dev_dbg(&link->dev, "ray_cs interrupt update params done\n");
1882 if (status != CCS_COMMAND_COMPLETE) {
1883 tmp =
1884 readb(&pccs->var.update_param.
1885 failure_cause);
1886 dev_dbg(&link->dev,
1887 "ray_cs interrupt update params failed - reason %d\n",
1888 tmp);
1889 }
1890 break;
1891 case CCS_REPORT_PARAMS:
1892 dev_dbg(&link->dev, "ray_cs interrupt report params done\n");
1893 break;
1894 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
1895 dev_dbg(&link->dev,
1896 "ray_cs interrupt CCS Update Multicast List done\n");
1897 break;
1898 case CCS_UPDATE_POWER_SAVINGS_MODE:
1899 dev_dbg(&link->dev,
1900 "ray_cs interrupt update power save mode done\n");
1901 break;
1902 case CCS_START_NETWORK:
1903 case CCS_JOIN_NETWORK:
1904 if (status == CCS_COMMAND_COMPLETE) {
1905 if (readb
1906 (&pccs->var.start_network.net_initiated) ==
1907 1) {
1908 dev_dbg(&link->dev,
1909 "ray_cs interrupt network \"%s\" started\n",
1910 local->sparm.b4.a_current_ess_id);
1911 } else {
1912 dev_dbg(&link->dev,
1913 "ray_cs interrupt network \"%s\" joined\n",
1914 local->sparm.b4.a_current_ess_id);
1915 }
1916 memcpy_fromio(&local->bss_id,
1917 pccs->var.start_network.bssid,
1918 ADDRLEN);
1919
1920 if (local->fw_ver == 0x55)
1921 local->net_default_tx_rate = 3;
1922 else
1923 local->net_default_tx_rate =
1924 readb(&pccs->var.start_network.
1925 net_default_tx_rate);
1926 local->encryption =
1927 readb(&pccs->var.start_network.encryption);
1928 if (!sniffer && (local->net_type == INFRA)
1929 && !(local->sparm.b4.a_acting_as_ap_status)) {
1930 authenticate(local);
1931 }
1932 local->card_status = CARD_ACQ_COMPLETE;
1933 } else {
1934 local->card_status = CARD_ACQ_FAILED;
1935
1936 del_timer(&local->timer);
1937 local->timer.expires = jiffies + HZ * 5;
1938 local->timer.data = (long)local;
1939 if (status == CCS_START_NETWORK) {
1940 dev_dbg(&link->dev,
1941 "ray_cs interrupt network \"%s\" start failed\n",
1942 local->sparm.b4.a_current_ess_id);
1943 local->timer.function = start_net;
1944 } else {
1945 dev_dbg(&link->dev,
1946 "ray_cs interrupt network \"%s\" join failed\n",
1947 local->sparm.b4.a_current_ess_id);
1948 local->timer.function = join_net;
1949 }
1950 add_timer(&local->timer);
1951 }
1952 break;
1953 case CCS_START_ASSOCIATION:
1954 if (status == CCS_COMMAND_COMPLETE) {
1955 local->card_status = CARD_ASSOC_COMPLETE;
1956 dev_dbg(&link->dev, "ray_cs association successful\n");
1957 } else {
1958 dev_dbg(&link->dev, "ray_cs association failed,\n");
1959 local->card_status = CARD_ASSOC_FAILED;
1960 join_net((u_long) local);
1961 }
1962 break;
1963 case CCS_TX_REQUEST:
1964 if (status == CCS_COMMAND_COMPLETE) {
1965 dev_dbg(&link->dev,
1966 "ray_cs interrupt tx request complete\n");
1967 } else {
1968 dev_dbg(&link->dev,
1969 "ray_cs interrupt tx request failed\n");
1970 }
1971 if (!sniffer)
1972 netif_start_queue(dev);
1973 netif_wake_queue(dev);
1974 break;
1975 case CCS_TEST_MEMORY:
1976 dev_dbg(&link->dev, "ray_cs interrupt mem test done\n");
1977 break;
1978 case CCS_SHUTDOWN:
1979 dev_dbg(&link->dev,
1980 "ray_cs interrupt Unexpected CCS returned - Shutdown\n");
1981 break;
1982 case CCS_DUMP_MEMORY:
1983 dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n");
1984 break;
1985 case CCS_START_TIMER:
1986 dev_dbg(&link->dev,
1987 "ray_cs interrupt DING - raylink timer expired\n");
1988 break;
1989 default:
1990 dev_dbg(&link->dev,
1991 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",
1992 rcsindex, cmd);
1993 }
1994 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
1995 } else { /* It's an RCS */
1996
1997 prcs = rcs_base(local) + rcsindex;
1998
1999 switch (readb(&prcs->interrupt_id)) {
2000 case PROCESS_RX_PACKET:
2001 ray_rx(dev, local, prcs);
2002 break;
2003 case REJOIN_NET_COMPLETE:
2004 dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n");
2005 local->card_status = CARD_ACQ_COMPLETE;
2006 /* do we need to clear tx buffers CCS's? */
2007 if (local->sparm.b4.a_network_type == ADHOC) {
2008 if (!sniffer)
2009 netif_start_queue(dev);
2010 } else {
2011 memcpy_fromio(&local->bss_id,
2012 prcs->var.rejoin_net_complete.
2013 bssid, ADDRLEN);
2014 dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n",
2015 local->bss_id);
2016 if (!sniffer)
2017 authenticate(local);
2018 }
2019 break;
2020 case ROAMING_INITIATED:
2021 dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n");
2022 netif_stop_queue(dev);
2023 local->card_status = CARD_DOING_ACQ;
2024 break;
2025 case JAPAN_CALL_SIGN_RXD:
2026 dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n");
2027 break;
2028 default:
2029 dev_dbg(&link->dev,
2030 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",
2031 rcsindex,
2032 (unsigned int)readb(&prcs->interrupt_id));
2033 break;
2034 }
2035 writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2036 }
2037 clear_interrupt(local);
2038 return IRQ_HANDLED;
2039 } /* ray_interrupt */
2040
2041 /*===========================================================================*/
2042 static void ray_rx(struct net_device *dev, ray_dev_t *local,
2043 struct rcs __iomem *prcs)
2044 {
2045 int rx_len;
2046 unsigned int pkt_addr;
2047 void __iomem *pmsg;
2048 pr_debug("ray_rx process rx packet\n");
2049
2050 /* Calculate address of packet within Rx buffer */
2051 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2052 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2053 /* Length of first packet fragment */
2054 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2055 + readb(&prcs->var.rx_packet.rx_data_length[1]);
2056
2057 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2058 pmsg = local->rmem + pkt_addr;
2059 switch (readb(pmsg)) {
2060 case DATA_TYPE:
2061 pr_debug("ray_rx data type\n");
2062 rx_data(dev, prcs, pkt_addr, rx_len);
2063 break;
2064 case AUTHENTIC_TYPE:
2065 pr_debug("ray_rx authentic type\n");
2066 if (sniffer)
2067 rx_data(dev, prcs, pkt_addr, rx_len);
2068 else
2069 rx_authenticate(local, prcs, pkt_addr, rx_len);
2070 break;
2071 case DEAUTHENTIC_TYPE:
2072 pr_debug("ray_rx deauth type\n");
2073 if (sniffer)
2074 rx_data(dev, prcs, pkt_addr, rx_len);
2075 else
2076 rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2077 break;
2078 case NULL_MSG_TYPE:
2079 pr_debug("ray_cs rx NULL msg\n");
2080 break;
2081 case BEACON_TYPE:
2082 pr_debug("ray_rx beacon type\n");
2083 if (sniffer)
2084 rx_data(dev, prcs, pkt_addr, rx_len);
2085
2086 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr,
2087 rx_len < sizeof(struct beacon_rx) ?
2088 rx_len : sizeof(struct beacon_rx));
2089
2090 local->beacon_rxed = 1;
2091 /* Get the statistics so the card counters never overflow */
2092 ray_get_stats(dev);
2093 break;
2094 default:
2095 pr_debug("ray_cs unknown pkt type %2x\n",
2096 (unsigned int)readb(pmsg));
2097 break;
2098 }
2099
2100 } /* end ray_rx */
2101
2102 /*===========================================================================*/
2103 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
2104 unsigned int pkt_addr, int rx_len)
2105 {
2106 struct sk_buff *skb = NULL;
2107 struct rcs __iomem *prcslink = prcs;
2108 ray_dev_t *local = netdev_priv(dev);
2109 UCHAR *rx_ptr;
2110 int total_len;
2111 int tmp;
2112 #ifdef WIRELESS_SPY
2113 int siglev = local->last_rsl;
2114 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */
2115 #endif
2116
2117 if (!sniffer) {
2118 if (translate) {
2119 /* TBD length needs fixing for translated header */
2120 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2121 rx_len >
2122 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2123 FCS_LEN)) {
2124 pr_debug(
2125 "ray_cs invalid packet length %d received\n",
2126 rx_len);
2127 return;
2128 }
2129 } else { /* encapsulated ethernet */
2130
2131 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2132 rx_len >
2133 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2134 FCS_LEN)) {
2135 pr_debug(
2136 "ray_cs invalid packet length %d received\n",
2137 rx_len);
2138 return;
2139 }
2140 }
2141 }
2142 pr_debug("ray_cs rx_data packet\n");
2143 /* If fragmented packet, verify sizes of fragments add up */
2144 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2145 pr_debug("ray_cs rx'ed fragment\n");
2146 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2147 + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2148 total_len = tmp;
2149 prcslink = prcs;
2150 do {
2151 tmp -=
2152 (readb(&prcslink->var.rx_packet.rx_data_length[0])
2153 << 8)
2154 + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2155 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index)
2156 == 0xFF || tmp < 0)
2157 break;
2158 prcslink = rcs_base(local)
2159 + readb(&prcslink->link_field);
2160 } while (1);
2161
2162 if (tmp < 0) {
2163 pr_debug(
2164 "ray_cs rx_data fragment lengths don't add up\n");
2165 local->stats.rx_dropped++;
2166 release_frag_chain(local, prcs);
2167 return;
2168 }
2169 } else { /* Single unfragmented packet */
2170 total_len = rx_len;
2171 }
2172
2173 skb = dev_alloc_skb(total_len + 5);
2174 if (skb == NULL) {
2175 pr_debug("ray_cs rx_data could not allocate skb\n");
2176 local->stats.rx_dropped++;
2177 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2178 release_frag_chain(local, prcs);
2179 return;
2180 }
2181 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */
2182
2183 pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len,
2184 rx_len);
2185
2186 /************************/
2187 /* Reserve enough room for the whole damn packet. */
2188 rx_ptr = skb_put(skb, total_len);
2189 /* Copy the whole packet to sk_buff */
2190 rx_ptr +=
2191 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2192 /* Get source address */
2193 #ifdef WIRELESS_SPY
2194 skb_copy_from_linear_data_offset(skb,
2195 offsetof(struct mac_header, addr_2),
2196 linksrcaddr, ETH_ALEN);
2197 #endif
2198 /* Now, deal with encapsulation/translation/sniffer */
2199 if (!sniffer) {
2200 if (!translate) {
2201 /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2202 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2203 skb_pull(skb, RX_MAC_HEADER_LENGTH);
2204 } else {
2205 /* Do translation */
2206 untranslate(local, skb, total_len);
2207 }
2208 } else { /* sniffer mode, so just pass whole packet */
2209 };
2210
2211 /************************/
2212 /* Now pick up the rest of the fragments if any */
2213 tmp = 17;
2214 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2215 prcslink = prcs;
2216 pr_debug("ray_cs rx_data in fragment loop\n");
2217 do {
2218 prcslink = rcs_base(local)
2219 +
2220 readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2221 rx_len =
2222 ((readb(&prcslink->var.rx_packet.rx_data_length[0])
2223 << 8)
2224 +
2225 readb(&prcslink->var.rx_packet.rx_data_length[1]))
2226 & RX_BUFF_END;
2227 pkt_addr =
2228 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) <<
2229 8)
2230 + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2231 & RX_BUFF_END;
2232
2233 rx_ptr +=
2234 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2235
2236 } while (tmp-- &&
2237 readb(&prcslink->var.rx_packet.next_frag_rcs_index) !=
2238 0xFF);
2239 release_frag_chain(local, prcs);
2240 }
2241
2242 skb->protocol = eth_type_trans(skb, dev);
2243 netif_rx(skb);
2244 local->stats.rx_packets++;
2245 local->stats.rx_bytes += total_len;
2246
2247 /* Gather signal strength per address */
2248 #ifdef WIRELESS_SPY
2249 /* For the Access Point or the node having started the ad-hoc net
2250 * note : ad-hoc work only in some specific configurations, but we
2251 * kludge in ray_get_wireless_stats... */
2252 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) {
2253 /* Update statistics */
2254 /*local->wstats.qual.qual = none ? */
2255 local->wstats.qual.level = siglev;
2256 /*local->wstats.qual.noise = none ? */
2257 local->wstats.qual.updated = 0x2;
2258 }
2259 /* Now, update the spy stuff */
2260 {
2261 struct iw_quality wstats;
2262 wstats.level = siglev;
2263 /* wstats.noise = none ? */
2264 /* wstats.qual = none ? */
2265 wstats.updated = 0x2;
2266 /* Update spy records */
2267 wireless_spy_update(dev, linksrcaddr, &wstats);
2268 }
2269 #endif /* WIRELESS_SPY */
2270 } /* end rx_data */
2271
2272 /*===========================================================================*/
2273 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2274 {
2275 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH);
2276 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2277 __be16 type = *(__be16 *) psnap->ethertype;
2278 int delta;
2279 struct ethhdr *peth;
2280 UCHAR srcaddr[ADDRLEN];
2281 UCHAR destaddr[ADDRLEN];
2282 static const UCHAR org_bridge[3] = { 0, 0, 0xf8 };
2283 static const UCHAR org_1042[3] = { 0, 0, 0 };
2284
2285 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2286 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2287
2288 #if 0
2289 if {
2290 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
2291 DUMP_PREFIX_NONE, 16, 1,
2292 skb->data, 64, true);
2293 printk(KERN_DEBUG
2294 "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2295 ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
2296 psnap->org[0], psnap->org[1], psnap->org[2]);
2297 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data);
2298 }
2299 #endif
2300
2301 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2302 /* not a snap type so leave it alone */
2303 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2304 psnap->dsap, psnap->ssap, psnap->ctrl);
2305
2306 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2307 peth = (struct ethhdr *)(skb->data + delta);
2308 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2309 } else { /* Its a SNAP */
2310 if (memcmp(psnap->org, org_bridge, 3) == 0) {
2311 /* EtherII and nuke the LLC */
2312 pr_debug("ray_cs untranslate Bridge encap\n");
2313 delta = RX_MAC_HEADER_LENGTH
2314 + sizeof(struct snaphdr_t) - ETH_HLEN;
2315 peth = (struct ethhdr *)(skb->data + delta);
2316 peth->h_proto = type;
2317 } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2318 switch (ntohs(type)) {
2319 case ETH_P_IPX:
2320 case ETH_P_AARP:
2321 pr_debug("ray_cs untranslate RFC IPX/AARP\n");
2322 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2323 peth = (struct ethhdr *)(skb->data + delta);
2324 peth->h_proto =
2325 htons(len - RX_MAC_HEADER_LENGTH);
2326 break;
2327 default:
2328 pr_debug("ray_cs untranslate RFC default\n");
2329 delta = RX_MAC_HEADER_LENGTH +
2330 sizeof(struct snaphdr_t) - ETH_HLEN;
2331 peth = (struct ethhdr *)(skb->data + delta);
2332 peth->h_proto = type;
2333 break;
2334 }
2335 } else {
2336 printk("ray_cs untranslate very confused by packet\n");
2337 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2338 peth = (struct ethhdr *)(skb->data + delta);
2339 peth->h_proto = type;
2340 }
2341 }
2342 /* TBD reserve skb_reserve(skb, delta); */
2343 skb_pull(skb, delta);
2344 pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta,
2345 skb->data);
2346 memcpy(peth->h_dest, destaddr, ADDRLEN);
2347 memcpy(peth->h_source, srcaddr, ADDRLEN);
2348 #if 0
2349 {
2350 int i;
2351 printk(KERN_DEBUG "skb->data after untranslate:");
2352 for (i = 0; i < 64; i++)
2353 printk("%02x ", skb->data[i]);
2354 printk("\n");
2355 }
2356 #endif
2357 } /* end untranslate */
2358
2359 /*===========================================================================*/
2360 /* Copy data from circular receive buffer to PC memory.
2361 * dest = destination address in PC memory
2362 * pkt_addr = source address in receive buffer
2363 * len = length of packet to copy
2364 */
2365 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr,
2366 int length)
2367 {
2368 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2369 if (wrap_bytes <= 0) {
2370 memcpy_fromio(dest, local->rmem + pkt_addr, length);
2371 } else { /* Packet wrapped in circular buffer */
2372
2373 memcpy_fromio(dest, local->rmem + pkt_addr,
2374 length - wrap_bytes);
2375 memcpy_fromio(dest + length - wrap_bytes, local->rmem,
2376 wrap_bytes);
2377 }
2378 return length;
2379 }
2380
2381 /*===========================================================================*/
2382 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs)
2383 {
2384 struct rcs __iomem *prcslink = prcs;
2385 int tmp = 17;
2386 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2387
2388 while (tmp--) {
2389 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2390 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2391 pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n",
2392 rcsindex);
2393 break;
2394 }
2395 prcslink = rcs_base(local) + rcsindex;
2396 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2397 }
2398 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2399 }
2400
2401 /*===========================================================================*/
2402 static void authenticate(ray_dev_t *local)
2403 {
2404 struct pcmcia_device *link = local->finder;
2405 dev_dbg(&link->dev, "ray_cs Starting authentication.\n");
2406 if (!(pcmcia_dev_present(link))) {
2407 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n");
2408 return;
2409 }
2410
2411 del_timer(&local->timer);
2412 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2413 local->timer.function = join_net;
2414 } else {
2415 local->timer.function = authenticate_timeout;
2416 }
2417 local->timer.expires = jiffies + HZ * 2;
2418 local->timer.data = (long)local;
2419 add_timer(&local->timer);
2420 local->authentication_state = AWAITING_RESPONSE;
2421 } /* end authenticate */
2422
2423 /*===========================================================================*/
2424 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2425 unsigned int pkt_addr, int rx_len)
2426 {
2427 UCHAR buff[256];
2428 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2429
2430 del_timer(&local->timer);
2431
2432 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2433 /* if we are trying to get authenticated */
2434 if (local->sparm.b4.a_network_type == ADHOC) {
2435 pr_debug("ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n",
2436 msg->var[0], msg->var[1], msg->var[2], msg->var[3],
2437 msg->var[4], msg->var[5]);
2438 if (msg->var[2] == 1) {
2439 pr_debug("ray_cs Sending authentication response.\n");
2440 if (!build_auth_frame
2441 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2442 local->authentication_state = NEED_TO_AUTH;
2443 memcpy(local->auth_id, msg->mac.addr_2,
2444 ADDRLEN);
2445 }
2446 }
2447 } else { /* Infrastructure network */
2448
2449 if (local->authentication_state == AWAITING_RESPONSE) {
2450 /* Verify authentication sequence #2 and success */
2451 if (msg->var[2] == 2) {
2452 if ((msg->var[3] | msg->var[4]) == 0) {
2453 pr_debug("Authentication successful\n");
2454 local->card_status = CARD_AUTH_COMPLETE;
2455 associate(local);
2456 local->authentication_state =
2457 AUTHENTICATED;
2458 } else {
2459 pr_debug("Authentication refused\n");
2460 local->card_status = CARD_AUTH_REFUSED;
2461 join_net((u_long) local);
2462 local->authentication_state =
2463 UNAUTHENTICATED;
2464 }
2465 }
2466 }
2467 }
2468
2469 } /* end rx_authenticate */
2470
2471 /*===========================================================================*/
2472 static void associate(ray_dev_t *local)
2473 {
2474 struct ccs __iomem *pccs;
2475 struct pcmcia_device *link = local->finder;
2476 struct net_device *dev = link->priv;
2477 int ccsindex;
2478 if (!(pcmcia_dev_present(link))) {
2479 dev_dbg(&link->dev, "ray_cs associate - device not present\n");
2480 return;
2481 }
2482 /* If no tx buffers available, return */
2483 if ((ccsindex = get_free_ccs(local)) < 0) {
2484 /* TBD should never be here but... what if we are? */
2485 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n");
2486 return;
2487 }
2488 dev_dbg(&link->dev, "ray_cs Starting association with access point\n");
2489 pccs = ccs_base(local) + ccsindex;
2490 /* fill in the CCS */
2491 writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2492 /* Interrupt the firmware to process the command */
2493 if (interrupt_ecf(local, ccsindex)) {
2494 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
2495 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2496
2497 del_timer(&local->timer);
2498 local->timer.expires = jiffies + HZ * 2;
2499 local->timer.data = (long)local;
2500 local->timer.function = join_net;
2501 add_timer(&local->timer);
2502 local->card_status = CARD_ASSOC_FAILED;
2503 return;
2504 }
2505 if (!sniffer)
2506 netif_start_queue(dev);
2507
2508 } /* end associate */
2509
2510 /*===========================================================================*/
2511 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2512 unsigned int pkt_addr, int rx_len)
2513 {
2514 /* UCHAR buff[256];
2515 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2516 */
2517 pr_debug("Deauthentication frame received\n");
2518 local->authentication_state = UNAUTHENTICATED;
2519 /* Need to reauthenticate or rejoin depending on reason code */
2520 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2521 */
2522 }
2523
2524 /*===========================================================================*/
2525 static void clear_interrupt(ray_dev_t *local)
2526 {
2527 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2528 }
2529
2530 /*===========================================================================*/
2531 #ifdef CONFIG_PROC_FS
2532 #define MAXDATA (PAGE_SIZE - 80)
2533
2534 static const char *card_status[] = {
2535 "Card inserted - uninitialized", /* 0 */
2536 "Card not downloaded", /* 1 */
2537 "Waiting for download parameters", /* 2 */
2538 "Card doing acquisition", /* 3 */
2539 "Acquisition complete", /* 4 */
2540 "Authentication complete", /* 5 */
2541 "Association complete", /* 6 */
2542 "???", "???", "???", "???", /* 7 8 9 10 undefined */
2543 "Card init error", /* 11 */
2544 "Download parameters error", /* 12 */
2545 "???", /* 13 */
2546 "Acquisition failed", /* 14 */
2547 "Authentication refused", /* 15 */
2548 "Association failed" /* 16 */
2549 };
2550
2551 static const char *nettype[] = { "Adhoc", "Infra " };
2552 static const char *framing[] = { "Encapsulation", "Translation" }
2553
2554 ;
2555 /*===========================================================================*/
2556 static int ray_cs_proc_show(struct seq_file *m, void *v)
2557 {
2558 /* Print current values which are not available via other means
2559 * eg ifconfig
2560 */
2561 int i;
2562 struct pcmcia_device *link;
2563 struct net_device *dev;
2564 ray_dev_t *local;
2565 UCHAR *p;
2566 struct freq_hop_element *pfh;
2567 UCHAR c[33];
2568
2569 link = this_device;
2570 if (!link)
2571 return 0;
2572 dev = (struct net_device *)link->priv;
2573 if (!dev)
2574 return 0;
2575 local = netdev_priv(dev);
2576 if (!local)
2577 return 0;
2578
2579 seq_puts(m, "Raylink Wireless LAN driver status\n");
2580 seq_printf(m, "%s\n", rcsid);
2581 /* build 4 does not report version, and field is 0x55 after memtest */
2582 seq_puts(m, "Firmware version = ");
2583 if (local->fw_ver == 0x55)
2584 seq_puts(m, "4 - Use dump_cis for more details\n");
2585 else
2586 seq_printf(m, "%2d.%02d.%02d\n",
2587 local->fw_ver, local->fw_bld, local->fw_var);
2588
2589 for (i = 0; i < 32; i++)
2590 c[i] = local->sparm.b5.a_current_ess_id[i];
2591 c[32] = 0;
2592 seq_printf(m, "%s network ESSID = \"%s\"\n",
2593 nettype[local->sparm.b5.a_network_type], c);
2594
2595 p = local->bss_id;
2596 seq_printf(m, "BSSID = %pM\n", p);
2597
2598 seq_printf(m, "Country code = %d\n",
2599 local->sparm.b5.a_curr_country_code);
2600
2601 i = local->card_status;
2602 if (i < 0)
2603 i = 10;
2604 if (i > 16)
2605 i = 10;
2606 seq_printf(m, "Card status = %s\n", card_status[i]);
2607
2608 seq_printf(m, "Framing mode = %s\n", framing[translate]);
2609
2610 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl);
2611
2612 if (local->beacon_rxed) {
2613 /* Pull some fields out of last beacon received */
2614 seq_printf(m, "Beacon Interval = %d Kus\n",
2615 local->last_bcn.beacon_intvl[0]
2616 + 256 * local->last_bcn.beacon_intvl[1]);
2617
2618 p = local->last_bcn.elements;
2619 if (p[0] == C_ESSID_ELEMENT_ID)
2620 p += p[1] + 2;
2621 else {
2622 seq_printf(m,
2623 "Parse beacon failed at essid element id = %d\n",
2624 p[0]);
2625 return 0;
2626 }
2627
2628 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2629 seq_puts(m, "Supported rate codes = ");
2630 for (i = 2; i < p[1] + 2; i++)
2631 seq_printf(m, "0x%02x ", p[i]);
2632 seq_putc(m, '\n');
2633 p += p[1] + 2;
2634 } else {
2635 seq_puts(m, "Parse beacon failed at rates element\n");
2636 return 0;
2637 }
2638
2639 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2640 pfh = (struct freq_hop_element *)p;
2641 seq_printf(m, "Hop dwell = %d Kus\n",
2642 pfh->dwell_time[0] +
2643 256 * pfh->dwell_time[1]);
2644 seq_printf(m, "Hop set = %d\n",
2645 pfh->hop_set);
2646 seq_printf(m, "Hop pattern = %d\n",
2647 pfh->hop_pattern);
2648 seq_printf(m, "Hop index = %d\n",
2649 pfh->hop_index);
2650 p += p[1] + 2;
2651 } else {
2652 seq_puts(m,
2653 "Parse beacon failed at FH param element\n");
2654 return 0;
2655 }
2656 } else {
2657 seq_puts(m, "No beacons received\n");
2658 }
2659 return 0;
2660 }
2661
2662 static int ray_cs_proc_open(struct inode *inode, struct file *file)
2663 {
2664 return single_open(file, ray_cs_proc_show, NULL);
2665 }
2666
2667 static const struct file_operations ray_cs_proc_fops = {
2668 .owner = THIS_MODULE,
2669 .open = ray_cs_proc_open,
2670 .read = seq_read,
2671 .llseek = seq_lseek,
2672 .release = single_release,
2673 };
2674 #endif
2675 /*===========================================================================*/
2676 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2677 {
2678 int addr;
2679 struct ccs __iomem *pccs;
2680 struct tx_msg __iomem *ptx;
2681 int ccsindex;
2682
2683 /* If no tx buffers available, return */
2684 if ((ccsindex = get_free_tx_ccs(local)) < 0) {
2685 pr_debug("ray_cs send authenticate - No free tx ccs\n");
2686 return -1;
2687 }
2688
2689 pccs = ccs_base(local) + ccsindex;
2690
2691 /* Address in card space */
2692 addr = TX_BUF_BASE + (ccsindex << 11);
2693 /* fill in the CCS */
2694 writeb(CCS_TX_REQUEST, &pccs->cmd);
2695 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2696 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2697 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2698 writeb(TX_AUTHENTICATE_LENGTH_LSB,
2699 pccs->var.tx_request.tx_data_length + 1);
2700 writeb(0, &pccs->var.tx_request.pow_sav_mode);
2701
2702 ptx = local->sram + addr;
2703 /* fill in the mac header */
2704 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2705 writeb(0, &ptx->mac.frame_ctl_2);
2706
2707 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2708 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2709 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2710
2711 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2712 memset_io(ptx->var, 0, 6);
2713 writeb(auth_type & 0xff, ptx->var + 2);
2714
2715 /* Interrupt the firmware to process the command */
2716 if (interrupt_ecf(local, ccsindex)) {
2717 pr_debug(
2718 "ray_cs send authentication request failed - ECF not ready for intr\n");
2719 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2720 return -1;
2721 }
2722 return 0;
2723 } /* End build_auth_frame */
2724
2725 /*===========================================================================*/
2726 #ifdef CONFIG_PROC_FS
2727 static ssize_t ray_cs_essid_proc_write(struct file *file,
2728 const char __user *buffer, size_t count, loff_t *pos)
2729 {
2730 static char proc_essid[33];
2731 unsigned int len = count;
2732
2733 if (len > 32)
2734 len = 32;
2735 memset(proc_essid, 0, 33);
2736 if (copy_from_user(proc_essid, buffer, len))
2737 return -EFAULT;
2738 essid = proc_essid;
2739 return count;
2740 }
2741
2742 static const struct file_operations ray_cs_essid_proc_fops = {
2743 .owner = THIS_MODULE,
2744 .write = ray_cs_essid_proc_write,
2745 .llseek = noop_llseek,
2746 };
2747
2748 static ssize_t int_proc_write(struct file *file, const char __user *buffer,
2749 size_t count, loff_t *pos)
2750 {
2751 static char proc_number[10];
2752 char *p;
2753 int nr, len;
2754
2755 if (!count)
2756 return 0;
2757
2758 if (count > 9)
2759 return -EINVAL;
2760 if (copy_from_user(proc_number, buffer, count))
2761 return -EFAULT;
2762 p = proc_number;
2763 nr = 0;
2764 len = count;
2765 do {
2766 unsigned int c = *p - '0';
2767 if (c > 9)
2768 return -EINVAL;
2769 nr = nr * 10 + c;
2770 p++;
2771 } while (--len);
2772 *(int *)PDE(file->f_path.dentry->d_inode)->data = nr;
2773 return count;
2774 }
2775
2776 static const struct file_operations int_proc_fops = {
2777 .owner = THIS_MODULE,
2778 .write = int_proc_write,
2779 .llseek = noop_llseek,
2780 };
2781 #endif
2782
2783 static const struct pcmcia_device_id ray_ids[] = {
2784 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2785 PCMCIA_DEVICE_NULL,
2786 };
2787
2788 MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2789
2790 static struct pcmcia_driver ray_driver = {
2791 .owner = THIS_MODULE,
2792 .name = "ray_cs",
2793 .probe = ray_probe,
2794 .remove = ray_detach,
2795 .id_table = ray_ids,
2796 .suspend = ray_suspend,
2797 .resume = ray_resume,
2798 };
2799
2800 static int __init init_ray_cs(void)
2801 {
2802 int rc;
2803
2804 pr_debug("%s\n", rcsid);
2805 rc = pcmcia_register_driver(&ray_driver);
2806 pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n",
2807 rc);
2808
2809 #ifdef CONFIG_PROC_FS
2810 proc_mkdir("driver/ray_cs", NULL);
2811
2812 proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops);
2813 proc_create("driver/ray_cs/essid", S_IWUSR, NULL, &ray_cs_essid_proc_fops);
2814 proc_create_data("driver/ray_cs/net_type", S_IWUSR, NULL, &int_proc_fops, &net_type);
2815 proc_create_data("driver/ray_cs/translate", S_IWUSR, NULL, &int_proc_fops, &translate);
2816 #endif
2817 if (translate != 0)
2818 translate = 1;
2819 return 0;
2820 } /* init_ray_cs */
2821
2822 /*===========================================================================*/
2823
2824 static void __exit exit_ray_cs(void)
2825 {
2826 pr_debug("ray_cs: cleanup_module\n");
2827
2828 #ifdef CONFIG_PROC_FS
2829 remove_proc_entry("driver/ray_cs/ray_cs", NULL);
2830 remove_proc_entry("driver/ray_cs/essid", NULL);
2831 remove_proc_entry("driver/ray_cs/net_type", NULL);
2832 remove_proc_entry("driver/ray_cs/translate", NULL);
2833 remove_proc_entry("driver/ray_cs", NULL);
2834 #endif
2835
2836 pcmcia_unregister_driver(&ray_driver);
2837 } /* exit_ray_cs */
2838
2839 module_init(init_ray_cs);
2840 module_exit(exit_ray_cs);
2841
2842 /*===========================================================================*/
Linux with added FPC-III support