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Linux 4.16.11
[linux/fpc-iii.git] / drivers / net / wireless / ray_cs.c
blob0133fcd4601b2410b0d9b3b666f216b1860e3e37
1 /*=============================================================================
2 *
3 * A PCMCIA client driver for the Raylink wireless LAN card.
4 * The starting point for this module was the skeleton.c in the
5 * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net
6 *
7 *
8 * Copyright (c) 1998 Corey Thomas (corey@world.std.com)
9 *
10 * This driver is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 only of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * It is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, see <http://www.gnu.org/licenses/>.
21 *
22 * Changes:
23 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
24 * - reorganize kmallocs in ray_attach, checking all for failure
25 * and releasing the previous allocations if one fails
26 *
27 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003
28 * - Audit copy_to_user in ioctl(SIOCGIWESSID)
29 *
30 =============================================================================*/
31
32 #include <linux/module.h>
33 #include <linux/kernel.h>
34 #include <linux/proc_fs.h>
35 #include <linux/ptrace.h>
36 #include <linux/seq_file.h>
37 #include <linux/string.h>
38 #include <linux/timer.h>
39 #include <linux/init.h>
40 #include <linux/netdevice.h>
41 #include <linux/etherdevice.h>
42 #include <linux/if_arp.h>
43 #include <linux/ioport.h>
44 #include <linux/skbuff.h>
45 #include <linux/ieee80211.h>
46
47 #include <pcmcia/cistpl.h>
48 #include <pcmcia/cisreg.h>
49 #include <pcmcia/ds.h>
50
51 #include <linux/wireless.h>
52 #include <net/iw_handler.h>
53
54 #include <asm/io.h>
55 #include <asm/byteorder.h>
56 #include <linux/uaccess.h>
57
58 /* Warning : these stuff will slow down the driver... */
59 #define WIRELESS_SPY /* Enable spying addresses */
60 /* Definitions we need for spy */
61 typedef struct iw_statistics iw_stats;
62 typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */
63
64 #include "rayctl.h"
65 #include "ray_cs.h"
66
67
68 /** Prototypes based on PCMCIA skeleton driver *******************************/
69 static int ray_config(struct pcmcia_device *link);
70 static void ray_release(struct pcmcia_device *link);
71 static void ray_detach(struct pcmcia_device *p_dev);
72
73 /***** Prototypes indicated by device structure ******************************/
74 static int ray_dev_close(struct net_device *dev);
75 static int ray_dev_config(struct net_device *dev, struct ifmap *map);
76 static struct net_device_stats *ray_get_stats(struct net_device *dev);
77 static int ray_dev_init(struct net_device *dev);
78
79 static int ray_open(struct net_device *dev);
80 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
81 struct net_device *dev);
82 static void set_multicast_list(struct net_device *dev);
83 static void ray_update_multi_list(struct net_device *dev, int all);
84 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
85 unsigned char *data, int len);
86 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
87 UCHAR msg_type, unsigned char *data);
88 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
89 static iw_stats *ray_get_wireless_stats(struct net_device *dev);
90 static const struct iw_handler_def ray_handler_def;
91
92 /***** Prototypes for raylink functions **************************************/
93 static void authenticate(ray_dev_t *local);
94 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
95 static void authenticate_timeout(struct timer_list *t);
96 static int get_free_ccs(ray_dev_t *local);
97 static int get_free_tx_ccs(ray_dev_t *local);
98 static void init_startup_params(ray_dev_t *local);
99 static int parse_addr(char *in_str, UCHAR *out);
100 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type);
101 static int ray_init(struct net_device *dev);
102 static int interrupt_ecf(ray_dev_t *local, int ccs);
103 static void ray_reset(struct net_device *dev);
104 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
105 static void verify_dl_startup(struct timer_list *t);
106
107 /* Prototypes for interrpt time functions **********************************/
108 static irqreturn_t ray_interrupt(int reg, void *dev_id);
109 static void clear_interrupt(ray_dev_t *local);
110 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
111 unsigned int pkt_addr, int rx_len);
112 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
113 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
114 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
115 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
116 unsigned int pkt_addr, int rx_len);
117 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
118 unsigned int pkt_addr, int rx_len);
119 static void associate(ray_dev_t *local);
120
121 /* Card command functions */
122 static int dl_startup_params(struct net_device *dev);
123 static void join_net(struct timer_list *t);
124 static void start_net(struct timer_list *t);
125
126 /*===========================================================================*/
127 /* Parameters that can be set with 'insmod' */
128
129 /* ADHOC=0, Infrastructure=1 */
130 static int net_type = ADHOC;
131
132 /* Hop dwell time in Kus (1024 us units defined by 802.11) */
133 static int hop_dwell = 128;
134
135 /* Beacon period in Kus */
136 static int beacon_period = 256;
137
138 /* power save mode (0 = off, 1 = save power) */
139 static int psm;
140
141 /* String for network's Extended Service Set ID. 32 Characters max */
142 static char *essid;
143
144 /* Default to encapsulation unless translation requested */
145 static bool translate = true;
146
147 static int country = USA;
148
149 static int sniffer;
150
151 static int bc;
152
153 /* 48 bit physical card address if overriding card's real physical
154 * address is required. Since IEEE 802.11 addresses are 48 bits
155 * like ethernet, an int can't be used, so a string is used. To
156 * allow use of addresses starting with a decimal digit, the first
157 * character must be a letter and will be ignored. This letter is
158 * followed by up to 12 hex digits which are the address. If less
159 * than 12 digits are used, the address will be left filled with 0's.
160 * Note that bit 0 of the first byte is the broadcast bit, and evil
161 * things will happen if it is not 0 in a card address.
162 */
163 static char *phy_addr = NULL;
164
165 static unsigned int ray_mem_speed = 500;
166
167 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
168 static struct pcmcia_device *this_device = NULL;
169
170 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
171 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
172 MODULE_LICENSE("GPL");
173
174 module_param(net_type, int, 0);
175 module_param(hop_dwell, int, 0);
176 module_param(beacon_period, int, 0);
177 module_param(psm, int, 0);
178 module_param(essid, charp, 0);
179 module_param(translate, bool, 0);
180 module_param(country, int, 0);
181 module_param(sniffer, int, 0);
182 module_param(bc, int, 0);
183 module_param(phy_addr, charp, 0);
184 module_param(ray_mem_speed, int, 0);
185
186 static const UCHAR b5_default_startup_parms[] = {
187 0, 0, /* Adhoc station */
188 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
189 0, 0, 0, 0, 0, 0, 0, 0,
190 0, 0, 0, 0, 0, 0, 0, 0,
191 0, 0, 0, 0, 0, 0, 0, 0,
192 1, 0, /* Active scan, CA Mode */
193 0, 0, 0, 0, 0, 0, /* No default MAC addr */
194 0x7f, 0xff, /* Frag threshold */
195 0x00, 0x80, /* Hop time 128 Kus */
196 0x01, 0x00, /* Beacon period 256 Kus */
197 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
198 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */
199 0x7f, 0xff, /* RTS threshold */
200 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
201 0x05, /* assoc resp timeout thresh */
202 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */
203 0, /* Promiscuous mode */
204 0x0c, 0x0bd, /* Unique word */
205 0x32, /* Slot time */
206 0xff, 0xff, /* roam-low snr, low snr count */
207 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
208 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */
209 /* b4 - b5 differences start here */
210 0x00, 0x3f, /* CW max */
211 0x00, 0x0f, /* CW min */
212 0x04, 0x08, /* Noise gain, limit offset */
213 0x28, 0x28, /* det rssi, med busy offsets */
214 7, /* det sync thresh */
215 0, 2, 2, /* test mode, min, max */
216 0, /* allow broadcast SSID probe resp */
217 0, 0, /* privacy must start, can join */
218 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */
219 };
220
221 static const UCHAR b4_default_startup_parms[] = {
222 0, 0, /* Adhoc station */
223 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
224 0, 0, 0, 0, 0, 0, 0, 0,
225 0, 0, 0, 0, 0, 0, 0, 0,
226 0, 0, 0, 0, 0, 0, 0, 0,
227 1, 0, /* Active scan, CA Mode */
228 0, 0, 0, 0, 0, 0, /* No default MAC addr */
229 0x7f, 0xff, /* Frag threshold */
230 0x02, 0x00, /* Hop time */
231 0x00, 0x01, /* Beacon period */
232 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
233 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */
234 0x7f, 0xff, /* RTS threshold */
235 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
236 0x05, /* assoc resp timeout thresh */
237 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */
238 0, /* Promiscuous mode */
239 0x0c, 0x0bd, /* Unique word */
240 0x4e, /* Slot time (TBD seems wrong) */
241 0xff, 0xff, /* roam-low snr, low snr count */
242 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
243 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */
244 /* b4 - b5 differences start here */
245 0x3f, 0x0f, /* CW max, min */
246 0x04, 0x08, /* Noise gain, limit offset */
247 0x28, 0x28, /* det rssi, med busy offsets */
248 7, /* det sync thresh */
249 0, 2, 2, /* test mode, min, max */
250 0, /* rx/tx delay */
251 0, 0, 0, 0, 0, 0, /* current BSS id */
252 0 /* hop set */
253 };
254
255 /*===========================================================================*/
256 static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 };
257
258 static const char hop_pattern_length[] = { 1,
259 USA_HOP_MOD, EUROPE_HOP_MOD,
260 JAPAN_HOP_MOD, KOREA_HOP_MOD,
261 SPAIN_HOP_MOD, FRANCE_HOP_MOD,
262 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
263 JAPAN_TEST_HOP_MOD
264 };
265
266 static const char rcsid[] =
267 "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
268
269 static const struct net_device_ops ray_netdev_ops = {
270 .ndo_init = ray_dev_init,
271 .ndo_open = ray_open,
272 .ndo_stop = ray_dev_close,
273 .ndo_start_xmit = ray_dev_start_xmit,
274 .ndo_set_config = ray_dev_config,
275 .ndo_get_stats = ray_get_stats,
276 .ndo_set_rx_mode = set_multicast_list,
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 timer_setup(&local->timer, NULL, 0);
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_sync(&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.function = verify_dl_startup;
573 add_timer(&local->timer);
574 dev_dbg(&link->dev,
575 "ray_cs dl_startup_params started timer for verify_dl_startup\n");
576 return 0;
577 } /* dl_startup_params */
578
579 /*===========================================================================*/
580 static void init_startup_params(ray_dev_t *local)
581 {
582 int i;
583
584 if (country > JAPAN_TEST)
585 country = USA;
586 else if (country < USA)
587 country = USA;
588 /* structure for hop time and beacon period is defined here using
589 * New 802.11D6.1 format. Card firmware is still using old format
590 * until version 6.
591 * Before After
592 * a_hop_time ms byte a_hop_time ms byte
593 * a_hop_time 2s byte a_hop_time ls byte
594 * a_hop_time ls byte a_beacon_period ms byte
595 * a_beacon_period a_beacon_period ls byte
596 *
597 * a_hop_time = uS a_hop_time = KuS
598 * a_beacon_period = hops a_beacon_period = KuS
599 *//* 64ms = 010000 */
600 if (local->fw_ver == 0x55) {
601 memcpy(&local->sparm.b4, b4_default_startup_parms,
602 sizeof(struct b4_startup_params));
603 /* Translate sane kus input values to old build 4/5 format */
604 /* i = hop time in uS truncated to 3 bytes */
605 i = (hop_dwell * 1024) & 0xffffff;
606 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
607 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
608 local->sparm.b4.a_beacon_period[0] = 0;
609 local->sparm.b4.a_beacon_period[1] =
610 ((beacon_period / hop_dwell) - 1) & 0xff;
611 local->sparm.b4.a_curr_country_code = country;
612 local->sparm.b4.a_hop_pattern_length =
613 hop_pattern_length[(int)country] - 1;
614 if (bc) {
615 local->sparm.b4.a_ack_timeout = 0x50;
616 local->sparm.b4.a_sifs = 0x3f;
617 }
618 } else { /* Version 5 uses real kus values */
619 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms,
620 sizeof(struct b5_startup_params));
621
622 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
623 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
624 local->sparm.b5.a_beacon_period[0] =
625 (beacon_period >> 8) & 0xff;
626 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
627 if (psm)
628 local->sparm.b5.a_power_mgt_state = 1;
629 local->sparm.b5.a_curr_country_code = country;
630 local->sparm.b5.a_hop_pattern_length =
631 hop_pattern_length[(int)country];
632 }
633
634 local->sparm.b4.a_network_type = net_type & 0x01;
635 local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
636
637 if (essid != NULL)
638 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
639 } /* init_startup_params */
640
641 /*===========================================================================*/
642 static void verify_dl_startup(struct timer_list *t)
643 {
644 ray_dev_t *local = from_timer(local, t, timer);
645 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
646 UCHAR status;
647 struct pcmcia_device *link = local->finder;
648
649 if (!(pcmcia_dev_present(link))) {
650 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n");
651 return;
652 }
653 #if 0
654 {
655 int i;
656 printk(KERN_DEBUG
657 "verify_dl_startup parameters sent via ccs %d:\n",
658 local->dl_param_ccs);
659 for (i = 0; i < sizeof(struct b5_startup_params); i++) {
660 printk(" %2x",
661 (unsigned int)readb(local->sram +
662 HOST_TO_ECF_BASE + i));
663 }
664 printk("\n");
665 }
666 #endif
667
668 status = readb(&pccs->buffer_status);
669 if (status != CCS_BUFFER_FREE) {
670 printk(KERN_INFO
671 "Download startup params failed. Status = %d\n",
672 status);
673 local->card_status = CARD_DL_PARAM_ERROR;
674 return;
675 }
676 if (local->sparm.b4.a_network_type == ADHOC)
677 start_net(&local->timer);
678 else
679 join_net(&local->timer);
680 } /* end verify_dl_startup */
681
682 /*===========================================================================*/
683 /* Command card to start a network */
684 static void start_net(struct timer_list *t)
685 {
686 ray_dev_t *local = from_timer(local, t, timer);
687 struct ccs __iomem *pccs;
688 int ccsindex;
689 struct pcmcia_device *link = local->finder;
690 if (!(pcmcia_dev_present(link))) {
691 dev_dbg(&link->dev, "ray_cs start_net - device not present\n");
692 return;
693 }
694 /* Fill in the CCS fields for the ECF */
695 if ((ccsindex = get_free_ccs(local)) < 0)
696 return;
697 pccs = ccs_base(local) + ccsindex;
698 writeb(CCS_START_NETWORK, &pccs->cmd);
699 writeb(0, &pccs->var.start_network.update_param);
700 /* Interrupt the firmware to process the command */
701 if (interrupt_ecf(local, ccsindex)) {
702 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n");
703 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
704 return;
705 }
706 local->card_status = CARD_DOING_ACQ;
707 } /* end start_net */
708
709 /*===========================================================================*/
710 /* Command card to join a network */
711 static void join_net(struct timer_list *t)
712 {
713 ray_dev_t *local = from_timer(local, t, timer);
714
715 struct ccs __iomem *pccs;
716 int ccsindex;
717 struct pcmcia_device *link = local->finder;
718
719 if (!(pcmcia_dev_present(link))) {
720 dev_dbg(&link->dev, "ray_cs join_net - device not present\n");
721 return;
722 }
723 /* Fill in the CCS fields for the ECF */
724 if ((ccsindex = get_free_ccs(local)) < 0)
725 return;
726 pccs = ccs_base(local) + ccsindex;
727 writeb(CCS_JOIN_NETWORK, &pccs->cmd);
728 writeb(0, &pccs->var.join_network.update_param);
729 writeb(0, &pccs->var.join_network.net_initiated);
730 /* Interrupt the firmware to process the command */
731 if (interrupt_ecf(local, ccsindex)) {
732 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n");
733 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
734 return;
735 }
736 local->card_status = CARD_DOING_ACQ;
737 }
738
739
740 static void ray_release(struct pcmcia_device *link)
741 {
742 struct net_device *dev = link->priv;
743 ray_dev_t *local = netdev_priv(dev);
744
745 dev_dbg(&link->dev, "ray_release\n");
746
747 del_timer(&local->timer);
748
749 iounmap(local->sram);
750 iounmap(local->rmem);
751 iounmap(local->amem);
752 pcmcia_disable_device(link);
753
754 dev_dbg(&link->dev, "ray_release ending\n");
755 }
756
757 static int ray_suspend(struct pcmcia_device *link)
758 {
759 struct net_device *dev = link->priv;
760
761 if (link->open)
762 netif_device_detach(dev);
763
764 return 0;
765 }
766
767 static int ray_resume(struct pcmcia_device *link)
768 {
769 struct net_device *dev = link->priv;
770
771 if (link->open) {
772 ray_reset(dev);
773 netif_device_attach(dev);
774 }
775
776 return 0;
777 }
778
779 /*===========================================================================*/
780 static int ray_dev_init(struct net_device *dev)
781 {
782 #ifdef RAY_IMMEDIATE_INIT
783 int i;
784 #endif /* RAY_IMMEDIATE_INIT */
785 ray_dev_t *local = netdev_priv(dev);
786 struct pcmcia_device *link = local->finder;
787
788 dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev);
789 if (!(pcmcia_dev_present(link))) {
790 dev_dbg(&link->dev, "ray_dev_init - device not present\n");
791 return -1;
792 }
793 #ifdef RAY_IMMEDIATE_INIT
794 /* Download startup parameters */
795 if ((i = dl_startup_params(dev)) < 0) {
796 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
797 "returns 0x%x\n", i);
798 return -1;
799 }
800 #else /* RAY_IMMEDIATE_INIT */
801 /* Postpone the card init so that we can still configure the card,
802 * for example using the Wireless Extensions. The init will happen
803 * in ray_open() - Jean II */
804 dev_dbg(&link->dev,
805 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
806 local->card_status);
807 #endif /* RAY_IMMEDIATE_INIT */
808
809 /* copy mac and broadcast addresses to linux device */
810 memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
811 eth_broadcast_addr(dev->broadcast);
812
813 dev_dbg(&link->dev, "ray_dev_init ending\n");
814 return 0;
815 }
816
817 /*===========================================================================*/
818 static int ray_dev_config(struct net_device *dev, struct ifmap *map)
819 {
820 ray_dev_t *local = netdev_priv(dev);
821 struct pcmcia_device *link = local->finder;
822 /* Dummy routine to satisfy device structure */
823 dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map);
824 if (!(pcmcia_dev_present(link))) {
825 dev_dbg(&link->dev, "ray_dev_config - device not present\n");
826 return -1;
827 }
828
829 return 0;
830 }
831
832 /*===========================================================================*/
833 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
834 struct net_device *dev)
835 {
836 ray_dev_t *local = netdev_priv(dev);
837 struct pcmcia_device *link = local->finder;
838 short length = skb->len;
839
840 if (!pcmcia_dev_present(link)) {
841 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n");
842 dev_kfree_skb(skb);
843 return NETDEV_TX_OK;
844 }
845
846 dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
847 if (local->authentication_state == NEED_TO_AUTH) {
848 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n");
849 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
850 local->authentication_state = AUTHENTICATED;
851 netif_stop_queue(dev);
852 return NETDEV_TX_BUSY;
853 }
854 }
855
856 if (length < ETH_ZLEN) {
857 if (skb_padto(skb, ETH_ZLEN))
858 return NETDEV_TX_OK;
859 length = ETH_ZLEN;
860 }
861 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) {
862 case XMIT_NO_CCS:
863 case XMIT_NEED_AUTH:
864 netif_stop_queue(dev);
865 return NETDEV_TX_BUSY;
866 case XMIT_NO_INTR:
867 case XMIT_MSG_BAD:
868 case XMIT_OK:
869 default:
870 dev_kfree_skb(skb);
871 }
872
873 return NETDEV_TX_OK;
874 } /* ray_dev_start_xmit */
875
876 /*===========================================================================*/
877 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
878 UCHAR msg_type)
879 {
880 ray_dev_t *local = netdev_priv(dev);
881 struct ccs __iomem *pccs;
882 int ccsindex;
883 int offset;
884 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */
885 short int addr; /* Address of xmit buffer in card space */
886
887 pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev);
888 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) {
889 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",
890 len);
891 return XMIT_MSG_BAD;
892 }
893 switch (ccsindex = get_free_tx_ccs(local)) {
894 case ECCSBUSY:
895 pr_debug("ray_hw_xmit tx_ccs table busy\n");
896 case ECCSFULL:
897 pr_debug("ray_hw_xmit No free tx ccs\n");
898 case ECARDGONE:
899 netif_stop_queue(dev);
900 return XMIT_NO_CCS;
901 default:
902 break;
903 }
904 addr = TX_BUF_BASE + (ccsindex << 11);
905
906 if (msg_type == DATA_TYPE) {
907 local->stats.tx_bytes += len;
908 local->stats.tx_packets++;
909 }
910
911 ptx = local->sram + addr;
912
913 ray_build_header(local, ptx, msg_type, data);
914 if (translate) {
915 offset = translate_frame(local, ptx, data, len);
916 } else { /* Encapsulate frame */
917 /* TBD TIB length will move address of ptx->var */
918 memcpy_toio(&ptx->var, data, len);
919 offset = 0;
920 }
921
922 /* fill in the CCS */
923 pccs = ccs_base(local) + ccsindex;
924 len += TX_HEADER_LENGTH + offset;
925 writeb(CCS_TX_REQUEST, &pccs->cmd);
926 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
927 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
928 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
929 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
930 /* TBD still need psm_cam? */
931 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
932 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
933 writeb(0, &pccs->var.tx_request.antenna);
934 pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n",
935 local->net_default_tx_rate);
936
937 /* Interrupt the firmware to process the command */
938 if (interrupt_ecf(local, ccsindex)) {
939 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n");
940 /* TBD very inefficient to copy packet to buffer, and then not
941 send it, but the alternative is to queue the messages and that
942 won't be done for a while. Maybe set tbusy until a CCS is free?
943 */
944 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
945 return XMIT_NO_INTR;
946 }
947 return XMIT_OK;
948 } /* end ray_hw_xmit */
949
950 /*===========================================================================*/
951 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
952 unsigned char *data, int len)
953 {
954 __be16 proto = ((struct ethhdr *)data)->h_proto;
955 if (ntohs(proto) >= ETH_P_802_3_MIN) { /* DIX II ethernet frame */
956 pr_debug("ray_cs translate_frame DIX II\n");
957 /* Copy LLC header to card buffer */
958 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
959 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc),
960 (UCHAR *) &proto, 2);
961 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
962 /* This is the selective translation table, only 2 entries */
963 writeb(0xf8,
964 &((struct snaphdr_t __iomem *)ptx->var)->org[3]);
965 }
966 /* Copy body of ethernet packet without ethernet header */
967 memcpy_toio((void __iomem *)&ptx->var +
968 sizeof(struct snaphdr_t), data + ETH_HLEN,
969 len - ETH_HLEN);
970 return (int)sizeof(struct snaphdr_t) - ETH_HLEN;
971 } else { /* already 802 type, and proto is length */
972 pr_debug("ray_cs translate_frame 802\n");
973 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
974 pr_debug("ray_cs translate_frame evil IPX\n");
975 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
976 return 0 - ETH_HLEN;
977 }
978 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
979 return 0 - ETH_HLEN;
980 }
981 /* TBD do other frame types */
982 } /* end translate_frame */
983
984 /*===========================================================================*/
985 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
986 UCHAR msg_type, unsigned char *data)
987 {
988 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
989 /*** IEEE 802.11 Address field assignments *************
990 TODS FROMDS addr_1 addr_2 addr_3 addr_4
991 Adhoc 0 0 dest src (terminal) BSSID N/A
992 AP to Terminal 0 1 dest AP(BSSID) source N/A
993 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A
994 AP to AP 1 1 dest AP src AP dest source
995 *******************************************************/
996 if (local->net_type == ADHOC) {
997 writeb(0, &ptx->mac.frame_ctl_2);
998 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest,
999 2 * ADDRLEN);
1000 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
1001 } else { /* infrastructure */
1002
1003 if (local->sparm.b4.a_acting_as_ap_status) {
1004 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
1005 memcpy_toio(ptx->mac.addr_1,
1006 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1007 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
1008 memcpy_toio(ptx->mac.addr_3,
1009 ((struct ethhdr *)data)->h_source, ADDRLEN);
1010 } else { /* Terminal */
1011
1012 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
1013 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1014 memcpy_toio(ptx->mac.addr_2,
1015 ((struct ethhdr *)data)->h_source, ADDRLEN);
1016 memcpy_toio(ptx->mac.addr_3,
1017 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1018 }
1019 }
1020 } /* end encapsulate_frame */
1021
1022 /*====================================================================*/
1023
1024 /*------------------------------------------------------------------*/
1025 /*
1026 * Wireless Handler : get protocol name
1027 */
1028 static int ray_get_name(struct net_device *dev, struct iw_request_info *info,
1029 union iwreq_data *wrqu, char *extra)
1030 {
1031 strcpy(wrqu->name, "IEEE 802.11-FH");
1032 return 0;
1033 }
1034
1035 /*------------------------------------------------------------------*/
1036 /*
1037 * Wireless Handler : set frequency
1038 */
1039 static int ray_set_freq(struct net_device *dev, struct iw_request_info *info,
1040 union iwreq_data *wrqu, char *extra)
1041 {
1042 ray_dev_t *local = netdev_priv(dev);
1043 int err = -EINPROGRESS; /* Call commit handler */
1044
1045 /* Reject if card is already initialised */
1046 if (local->card_status != CARD_AWAITING_PARAM)
1047 return -EBUSY;
1048
1049 /* Setting by channel number */
1050 if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0))
1051 err = -EOPNOTSUPP;
1052 else
1053 local->sparm.b5.a_hop_pattern = wrqu->freq.m;
1054
1055 return err;
1056 }
1057
1058 /*------------------------------------------------------------------*/
1059 /*
1060 * Wireless Handler : get frequency
1061 */
1062 static int ray_get_freq(struct net_device *dev, struct iw_request_info *info,
1063 union iwreq_data *wrqu, char *extra)
1064 {
1065 ray_dev_t *local = netdev_priv(dev);
1066
1067 wrqu->freq.m = local->sparm.b5.a_hop_pattern;
1068 wrqu->freq.e = 0;
1069 return 0;
1070 }
1071
1072 /*------------------------------------------------------------------*/
1073 /*
1074 * Wireless Handler : set ESSID
1075 */
1076 static int ray_set_essid(struct net_device *dev, struct iw_request_info *info,
1077 union iwreq_data *wrqu, char *extra)
1078 {
1079 ray_dev_t *local = netdev_priv(dev);
1080
1081 /* Reject if card is already initialised */
1082 if (local->card_status != CARD_AWAITING_PARAM)
1083 return -EBUSY;
1084
1085 /* Check if we asked for `any' */
1086 if (wrqu->essid.flags == 0)
1087 /* Corey : can you do that ? */
1088 return -EOPNOTSUPP;
1089
1090 /* Check the size of the string */
1091 if (wrqu->essid.length > IW_ESSID_MAX_SIZE)
1092 return -E2BIG;
1093
1094 /* Set the ESSID in the card */
1095 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1096 memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length);
1097
1098 return -EINPROGRESS; /* Call commit handler */
1099 }
1100
1101 /*------------------------------------------------------------------*/
1102 /*
1103 * Wireless Handler : get ESSID
1104 */
1105 static int ray_get_essid(struct net_device *dev, struct iw_request_info *info,
1106 union iwreq_data *wrqu, char *extra)
1107 {
1108 ray_dev_t *local = netdev_priv(dev);
1109 UCHAR tmp[IW_ESSID_MAX_SIZE + 1];
1110
1111 /* Get the essid that was set */
1112 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1113 memcpy(tmp, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1114 tmp[IW_ESSID_MAX_SIZE] = '\0';
1115
1116 /* Push it out ! */
1117 wrqu->essid.length = strlen(tmp);
1118 wrqu->essid.flags = 1; /* active */
1119
1120 return 0;
1121 }
1122
1123 /*------------------------------------------------------------------*/
1124 /*
1125 * Wireless Handler : get AP address
1126 */
1127 static int ray_get_wap(struct net_device *dev, struct iw_request_info *info,
1128 union iwreq_data *wrqu, char *extra)
1129 {
1130 ray_dev_t *local = netdev_priv(dev);
1131
1132 memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN);
1133 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1134
1135 return 0;
1136 }
1137
1138 /*------------------------------------------------------------------*/
1139 /*
1140 * Wireless Handler : set Bit-Rate
1141 */
1142 static int ray_set_rate(struct net_device *dev, struct iw_request_info *info,
1143 union iwreq_data *wrqu, char *extra)
1144 {
1145 ray_dev_t *local = netdev_priv(dev);
1146
1147 /* Reject if card is already initialised */
1148 if (local->card_status != CARD_AWAITING_PARAM)
1149 return -EBUSY;
1150
1151 /* Check if rate is in range */
1152 if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000))
1153 return -EINVAL;
1154
1155 /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1156 if ((local->fw_ver == 0x55) && /* Please check */
1157 (wrqu->bitrate.value == 2000000))
1158 local->net_default_tx_rate = 3;
1159 else
1160 local->net_default_tx_rate = wrqu->bitrate.value / 500000;
1161
1162 return 0;
1163 }
1164
1165 /*------------------------------------------------------------------*/
1166 /*
1167 * Wireless Handler : get Bit-Rate
1168 */
1169 static int ray_get_rate(struct net_device *dev, struct iw_request_info *info,
1170 union iwreq_data *wrqu, char *extra)
1171 {
1172 ray_dev_t *local = netdev_priv(dev);
1173
1174 if (local->net_default_tx_rate == 3)
1175 wrqu->bitrate.value = 2000000; /* Hum... */
1176 else
1177 wrqu->bitrate.value = local->net_default_tx_rate * 500000;
1178 wrqu->bitrate.fixed = 0; /* We are in auto mode */
1179
1180 return 0;
1181 }
1182
1183 /*------------------------------------------------------------------*/
1184 /*
1185 * Wireless Handler : set RTS threshold
1186 */
1187 static int ray_set_rts(struct net_device *dev, struct iw_request_info *info,
1188 union iwreq_data *wrqu, char *extra)
1189 {
1190 ray_dev_t *local = netdev_priv(dev);
1191 int rthr = wrqu->rts.value;
1192
1193 /* Reject if card is already initialised */
1194 if (local->card_status != CARD_AWAITING_PARAM)
1195 return -EBUSY;
1196
1197 /* if(wrq->u.rts.fixed == 0) we should complain */
1198 if (wrqu->rts.disabled)
1199 rthr = 32767;
1200 else {
1201 if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */
1202 return -EINVAL;
1203 }
1204 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1205 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1206
1207 return -EINPROGRESS; /* Call commit handler */
1208 }
1209
1210 /*------------------------------------------------------------------*/
1211 /*
1212 * Wireless Handler : get RTS threshold
1213 */
1214 static int ray_get_rts(struct net_device *dev, struct iw_request_info *info,
1215 union iwreq_data *wrqu, char *extra)
1216 {
1217 ray_dev_t *local = netdev_priv(dev);
1218
1219 wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8)
1220 + local->sparm.b5.a_rts_threshold[1];
1221 wrqu->rts.disabled = (wrqu->rts.value == 32767);
1222 wrqu->rts.fixed = 1;
1223
1224 return 0;
1225 }
1226
1227 /*------------------------------------------------------------------*/
1228 /*
1229 * Wireless Handler : set Fragmentation threshold
1230 */
1231 static int ray_set_frag(struct net_device *dev, struct iw_request_info *info,
1232 union iwreq_data *wrqu, char *extra)
1233 {
1234 ray_dev_t *local = netdev_priv(dev);
1235 int fthr = wrqu->frag.value;
1236
1237 /* Reject if card is already initialised */
1238 if (local->card_status != CARD_AWAITING_PARAM)
1239 return -EBUSY;
1240
1241 /* if(wrq->u.frag.fixed == 0) should complain */
1242 if (wrqu->frag.disabled)
1243 fthr = 32767;
1244 else {
1245 if ((fthr < 256) || (fthr > 2347)) /* To check out ! */
1246 return -EINVAL;
1247 }
1248 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1249 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1250
1251 return -EINPROGRESS; /* Call commit handler */
1252 }
1253
1254 /*------------------------------------------------------------------*/
1255 /*
1256 * Wireless Handler : get Fragmentation threshold
1257 */
1258 static int ray_get_frag(struct net_device *dev, struct iw_request_info *info,
1259 union iwreq_data *wrqu, char *extra)
1260 {
1261 ray_dev_t *local = netdev_priv(dev);
1262
1263 wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8)
1264 + local->sparm.b5.a_frag_threshold[1];
1265 wrqu->frag.disabled = (wrqu->frag.value == 32767);
1266 wrqu->frag.fixed = 1;
1267
1268 return 0;
1269 }
1270
1271 /*------------------------------------------------------------------*/
1272 /*
1273 * Wireless Handler : set Mode of Operation
1274 */
1275 static int ray_set_mode(struct net_device *dev, struct iw_request_info *info,
1276 union iwreq_data *wrqu, char *extra)
1277 {
1278 ray_dev_t *local = netdev_priv(dev);
1279 int err = -EINPROGRESS; /* Call commit handler */
1280 char card_mode = 1;
1281
1282 /* Reject if card is already initialised */
1283 if (local->card_status != CARD_AWAITING_PARAM)
1284 return -EBUSY;
1285
1286 switch (wrqu->mode) {
1287 case IW_MODE_ADHOC:
1288 card_mode = 0;
1289 /* Fall through */
1290 case IW_MODE_INFRA:
1291 local->sparm.b5.a_network_type = card_mode;
1292 break;
1293 default:
1294 err = -EINVAL;
1295 }
1296
1297 return err;
1298 }
1299
1300 /*------------------------------------------------------------------*/
1301 /*
1302 * Wireless Handler : get Mode of Operation
1303 */
1304 static int ray_get_mode(struct net_device *dev, struct iw_request_info *info,
1305 union iwreq_data *wrqu, char *extra)
1306 {
1307 ray_dev_t *local = netdev_priv(dev);
1308
1309 if (local->sparm.b5.a_network_type)
1310 wrqu->mode = IW_MODE_INFRA;
1311 else
1312 wrqu->mode = IW_MODE_ADHOC;
1313
1314 return 0;
1315 }
1316
1317 /*------------------------------------------------------------------*/
1318 /*
1319 * Wireless Handler : get range info
1320 */
1321 static int ray_get_range(struct net_device *dev, struct iw_request_info *info,
1322 union iwreq_data *wrqu, char *extra)
1323 {
1324 struct iw_range *range = (struct iw_range *)extra;
1325
1326 memset(range, 0, sizeof(struct iw_range));
1327
1328 /* Set the length (very important for backward compatibility) */
1329 wrqu->data.length = sizeof(struct iw_range);
1330
1331 /* Set the Wireless Extension versions */
1332 range->we_version_compiled = WIRELESS_EXT;
1333 range->we_version_source = 9;
1334
1335 /* Set information in the range struct */
1336 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */
1337 range->num_channels = hop_pattern_length[(int)country];
1338 range->num_frequency = 0;
1339 range->max_qual.qual = 0;
1340 range->max_qual.level = 255; /* What's the correct value ? */
1341 range->max_qual.noise = 255; /* Idem */
1342 range->num_bitrates = 2;
1343 range->bitrate[0] = 1000000; /* 1 Mb/s */
1344 range->bitrate[1] = 2000000; /* 2 Mb/s */
1345 return 0;
1346 }
1347
1348 /*------------------------------------------------------------------*/
1349 /*
1350 * Wireless Private Handler : set framing mode
1351 */
1352 static int ray_set_framing(struct net_device *dev, struct iw_request_info *info,
1353 union iwreq_data *wrqu, char *extra)
1354 {
1355 translate = !!*(extra); /* Set framing mode */
1356
1357 return 0;
1358 }
1359
1360 /*------------------------------------------------------------------*/
1361 /*
1362 * Wireless Private Handler : get framing mode
1363 */
1364 static int ray_get_framing(struct net_device *dev, struct iw_request_info *info,
1365 union iwreq_data *wrqu, char *extra)
1366 {
1367 *(extra) = translate;
1368
1369 return 0;
1370 }
1371
1372 /*------------------------------------------------------------------*/
1373 /*
1374 * Wireless Private Handler : get country
1375 */
1376 static int ray_get_country(struct net_device *dev, struct iw_request_info *info,
1377 union iwreq_data *wrqu, char *extra)
1378 {
1379 *(extra) = country;
1380
1381 return 0;
1382 }
1383
1384 /*------------------------------------------------------------------*/
1385 /*
1386 * Commit handler : called after a bunch of SET operations
1387 */
1388 static int ray_commit(struct net_device *dev, struct iw_request_info *info,
1389 union iwreq_data *wrqu, char *extra)
1390 {
1391 return 0;
1392 }
1393
1394 /*------------------------------------------------------------------*/
1395 /*
1396 * Stats handler : return Wireless Stats
1397 */
1398 static iw_stats *ray_get_wireless_stats(struct net_device *dev)
1399 {
1400 ray_dev_t *local = netdev_priv(dev);
1401 struct pcmcia_device *link = local->finder;
1402 struct status __iomem *p = local->sram + STATUS_BASE;
1403
1404 local->wstats.status = local->card_status;
1405 #ifdef WIRELESS_SPY
1406 if ((local->spy_data.spy_number > 0)
1407 && (local->sparm.b5.a_network_type == 0)) {
1408 /* Get it from the first node in spy list */
1409 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1410 local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1411 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1412 local->wstats.qual.updated =
1413 local->spy_data.spy_stat[0].updated;
1414 }
1415 #endif /* WIRELESS_SPY */
1416
1417 if (pcmcia_dev_present(link)) {
1418 local->wstats.qual.noise = readb(&p->rxnoise);
1419 local->wstats.qual.updated |= 4;
1420 }
1421
1422 return &local->wstats;
1423 } /* end ray_get_wireless_stats */
1424
1425 /*------------------------------------------------------------------*/
1426 /*
1427 * Structures to export the Wireless Handlers
1428 */
1429
1430 static const iw_handler ray_handler[] = {
1431 IW_HANDLER(SIOCSIWCOMMIT, ray_commit),
1432 IW_HANDLER(SIOCGIWNAME, ray_get_name),
1433 IW_HANDLER(SIOCSIWFREQ, ray_set_freq),
1434 IW_HANDLER(SIOCGIWFREQ, ray_get_freq),
1435 IW_HANDLER(SIOCSIWMODE, ray_set_mode),
1436 IW_HANDLER(SIOCGIWMODE, ray_get_mode),
1437 IW_HANDLER(SIOCGIWRANGE, ray_get_range),
1438 #ifdef WIRELESS_SPY
1439 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1440 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1441 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1442 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1443 #endif /* WIRELESS_SPY */
1444 IW_HANDLER(SIOCGIWAP, ray_get_wap),
1445 IW_HANDLER(SIOCSIWESSID, ray_set_essid),
1446 IW_HANDLER(SIOCGIWESSID, ray_get_essid),
1447 IW_HANDLER(SIOCSIWRATE, ray_set_rate),
1448 IW_HANDLER(SIOCGIWRATE, ray_get_rate),
1449 IW_HANDLER(SIOCSIWRTS, ray_set_rts),
1450 IW_HANDLER(SIOCGIWRTS, ray_get_rts),
1451 IW_HANDLER(SIOCSIWFRAG, ray_set_frag),
1452 IW_HANDLER(SIOCGIWFRAG, ray_get_frag),
1453 };
1454
1455 #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */
1456 #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */
1457 #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */
1458
1459 static const iw_handler ray_private_handler[] = {
1460 [0] = ray_set_framing,
1461 [1] = ray_get_framing,
1462 [3] = ray_get_country,
1463 };
1464
1465 static const struct iw_priv_args ray_private_args[] = {
1466 /* cmd, set_args, get_args, name */
1467 {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0,
1468 "set_framing"},
1469 {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1470 "get_framing"},
1471 {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1472 "get_country"},
1473 };
1474
1475 static const struct iw_handler_def ray_handler_def = {
1476 .num_standard = ARRAY_SIZE(ray_handler),
1477 .num_private = ARRAY_SIZE(ray_private_handler),
1478 .num_private_args = ARRAY_SIZE(ray_private_args),
1479 .standard = ray_handler,
1480 .private = ray_private_handler,
1481 .private_args = ray_private_args,
1482 .get_wireless_stats = ray_get_wireless_stats,
1483 };
1484
1485 /*===========================================================================*/
1486 static int ray_open(struct net_device *dev)
1487 {
1488 ray_dev_t *local = netdev_priv(dev);
1489 struct pcmcia_device *link;
1490 link = local->finder;
1491
1492 dev_dbg(&link->dev, "ray_open('%s')\n", dev->name);
1493
1494 if (link->open == 0)
1495 local->num_multi = 0;
1496 link->open++;
1497
1498 /* If the card is not started, time to start it ! - Jean II */
1499 if (local->card_status == CARD_AWAITING_PARAM) {
1500 int i;
1501
1502 dev_dbg(&link->dev, "ray_open: doing init now !\n");
1503
1504 /* Download startup parameters */
1505 if ((i = dl_startup_params(dev)) < 0) {
1506 printk(KERN_INFO
1507 "ray_dev_init dl_startup_params failed - "
1508 "returns 0x%x\n", i);
1509 return -1;
1510 }
1511 }
1512
1513 if (sniffer)
1514 netif_stop_queue(dev);
1515 else
1516 netif_start_queue(dev);
1517
1518 dev_dbg(&link->dev, "ray_open ending\n");
1519 return 0;
1520 } /* end ray_open */
1521
1522 /*===========================================================================*/
1523 static int ray_dev_close(struct net_device *dev)
1524 {
1525 ray_dev_t *local = netdev_priv(dev);
1526 struct pcmcia_device *link;
1527 link = local->finder;
1528
1529 dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name);
1530
1531 link->open--;
1532 netif_stop_queue(dev);
1533
1534 /* In here, we should stop the hardware (stop card from beeing active)
1535 * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1536 * card is closed we can chage its configuration.
1537 * Probably also need a COR reset to get sane state - Jean II */
1538
1539 return 0;
1540 } /* end ray_dev_close */
1541
1542 /*===========================================================================*/
1543 static void ray_reset(struct net_device *dev)
1544 {
1545 pr_debug("ray_reset entered\n");
1546 }
1547
1548 /*===========================================================================*/
1549 /* Cause a firmware interrupt if it is ready for one */
1550 /* Return nonzero if not ready */
1551 static int interrupt_ecf(ray_dev_t *local, int ccs)
1552 {
1553 int i = 50;
1554 struct pcmcia_device *link = local->finder;
1555
1556 if (!(pcmcia_dev_present(link))) {
1557 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n");
1558 return -1;
1559 }
1560 dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs);
1561
1562 while (i &&
1563 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) &
1564 ECF_INTR_SET))
1565 i--;
1566 if (i == 0) {
1567 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n");
1568 return -1;
1569 }
1570 /* Fill the mailbox, then kick the card */
1571 writeb(ccs, local->sram + SCB_BASE);
1572 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1573 return 0;
1574 } /* interrupt_ecf */
1575
1576 /*===========================================================================*/
1577 /* Get next free transmit CCS */
1578 /* Return - index of current tx ccs */
1579 static int get_free_tx_ccs(ray_dev_t *local)
1580 {
1581 int i;
1582 struct ccs __iomem *pccs = ccs_base(local);
1583 struct pcmcia_device *link = local->finder;
1584
1585 if (!(pcmcia_dev_present(link))) {
1586 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n");
1587 return ECARDGONE;
1588 }
1589
1590 if (test_and_set_bit(0, &local->tx_ccs_lock)) {
1591 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n");
1592 return ECCSBUSY;
1593 }
1594
1595 for (i = 0; i < NUMBER_OF_TX_CCS; i++) {
1596 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1597 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1598 writeb(CCS_END_LIST, &(pccs + i)->link);
1599 local->tx_ccs_lock = 0;
1600 return i;
1601 }
1602 }
1603 local->tx_ccs_lock = 0;
1604 dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n");
1605 return ECCSFULL;
1606 } /* get_free_tx_ccs */
1607
1608 /*===========================================================================*/
1609 /* Get next free CCS */
1610 /* Return - index of current ccs */
1611 static int get_free_ccs(ray_dev_t *local)
1612 {
1613 int i;
1614 struct ccs __iomem *pccs = ccs_base(local);
1615 struct pcmcia_device *link = local->finder;
1616
1617 if (!(pcmcia_dev_present(link))) {
1618 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n");
1619 return ECARDGONE;
1620 }
1621 if (test_and_set_bit(0, &local->ccs_lock)) {
1622 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n");
1623 return ECCSBUSY;
1624 }
1625
1626 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1627 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1628 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1629 writeb(CCS_END_LIST, &(pccs + i)->link);
1630 local->ccs_lock = 0;
1631 return i;
1632 }
1633 }
1634 local->ccs_lock = 0;
1635 dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n");
1636 return ECCSFULL;
1637 } /* get_free_ccs */
1638
1639 /*===========================================================================*/
1640 static void authenticate_timeout(struct timer_list *t)
1641 {
1642 ray_dev_t *local = from_timer(local, t, timer);
1643 del_timer(&local->timer);
1644 printk(KERN_INFO "ray_cs Authentication with access point failed"
1645 " - timeout\n");
1646 join_net(&local->timer);
1647 }
1648
1649 /*===========================================================================*/
1650 static int parse_addr(char *in_str, UCHAR *out)
1651 {
1652 int len;
1653 int i, j, k;
1654 int status;
1655
1656 if (in_str == NULL)
1657 return 0;
1658 if ((len = strlen(in_str)) < 2)
1659 return 0;
1660 memset(out, 0, ADDRLEN);
1661
1662 status = 1;
1663 j = len - 1;
1664 if (j > 12)
1665 j = 12;
1666 i = 5;
1667
1668 while (j > 0) {
1669 if ((k = hex_to_bin(in_str[j--])) != -1)
1670 out[i] = k;
1671 else
1672 return 0;
1673
1674 if (j == 0)
1675 break;
1676 if ((k = hex_to_bin(in_str[j--])) != -1)
1677 out[i] += k << 4;
1678 else
1679 return 0;
1680 if (!i--)
1681 break;
1682 }
1683 return status;
1684 }
1685
1686 /*===========================================================================*/
1687 static struct net_device_stats *ray_get_stats(struct net_device *dev)
1688 {
1689 ray_dev_t *local = netdev_priv(dev);
1690 struct pcmcia_device *link = local->finder;
1691 struct status __iomem *p = local->sram + STATUS_BASE;
1692 if (!(pcmcia_dev_present(link))) {
1693 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n");
1694 return &local->stats;
1695 }
1696 if (readb(&p->mrx_overflow_for_host)) {
1697 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1698 writeb(0, &p->mrx_overflow);
1699 writeb(0, &p->mrx_overflow_for_host);
1700 }
1701 if (readb(&p->mrx_checksum_error_for_host)) {
1702 local->stats.rx_crc_errors +=
1703 swab16(readw(&p->mrx_checksum_error));
1704 writeb(0, &p->mrx_checksum_error);
1705 writeb(0, &p->mrx_checksum_error_for_host);
1706 }
1707 if (readb(&p->rx_hec_error_for_host)) {
1708 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1709 writeb(0, &p->rx_hec_error);
1710 writeb(0, &p->rx_hec_error_for_host);
1711 }
1712 return &local->stats;
1713 }
1714
1715 /*===========================================================================*/
1716 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value,
1717 int len)
1718 {
1719 ray_dev_t *local = netdev_priv(dev);
1720 struct pcmcia_device *link = local->finder;
1721 int ccsindex;
1722 int i;
1723 struct ccs __iomem *pccs;
1724
1725 if (!(pcmcia_dev_present(link))) {
1726 dev_dbg(&link->dev, "ray_update_parm - device not present\n");
1727 return;
1728 }
1729
1730 if ((ccsindex = get_free_ccs(local)) < 0) {
1731 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n");
1732 return;
1733 }
1734 pccs = ccs_base(local) + ccsindex;
1735 writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1736 writeb(objid, &pccs->var.update_param.object_id);
1737 writeb(1, &pccs->var.update_param.number_objects);
1738 writeb(0, &pccs->var.update_param.failure_cause);
1739 for (i = 0; i < len; i++) {
1740 writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1741 }
1742 /* Interrupt the firmware to process the command */
1743 if (interrupt_ecf(local, ccsindex)) {
1744 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
1745 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1746 }
1747 }
1748
1749 /*===========================================================================*/
1750 static void ray_update_multi_list(struct net_device *dev, int all)
1751 {
1752 int ccsindex;
1753 struct ccs __iomem *pccs;
1754 ray_dev_t *local = netdev_priv(dev);
1755 struct pcmcia_device *link = local->finder;
1756 void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1757
1758 if (!(pcmcia_dev_present(link))) {
1759 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n");
1760 return;
1761 } else
1762 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev);
1763 if ((ccsindex = get_free_ccs(local)) < 0) {
1764 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n");
1765 return;
1766 }
1767 pccs = ccs_base(local) + ccsindex;
1768 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1769
1770 if (all) {
1771 writeb(0xff, &pccs->var);
1772 local->num_multi = 0xff;
1773 } else {
1774 struct netdev_hw_addr *ha;
1775 int i = 0;
1776
1777 /* Copy the kernel's list of MC addresses to card */
1778 netdev_for_each_mc_addr(ha, dev) {
1779 memcpy_toio(p, ha->addr, ETH_ALEN);
1780 dev_dbg(&link->dev, "ray_update_multi add addr %pm\n",
1781 ha->addr);
1782 p += ETH_ALEN;
1783 i++;
1784 }
1785 if (i > 256 / ADDRLEN)
1786 i = 256 / ADDRLEN;
1787 writeb((UCHAR) i, &pccs->var);
1788 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i);
1789 /* Interrupt the firmware to process the command */
1790 local->num_multi = i;
1791 }
1792 if (interrupt_ecf(local, ccsindex)) {
1793 dev_dbg(&link->dev,
1794 "ray_cs update_multi failed - ECF not ready for intr\n");
1795 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1796 }
1797 } /* end ray_update_multi_list */
1798
1799 /*===========================================================================*/
1800 static void set_multicast_list(struct net_device *dev)
1801 {
1802 ray_dev_t *local = netdev_priv(dev);
1803 UCHAR promisc;
1804
1805 pr_debug("ray_cs set_multicast_list(%p)\n", dev);
1806
1807 if (dev->flags & IFF_PROMISC) {
1808 if (local->sparm.b5.a_promiscuous_mode == 0) {
1809 pr_debug("ray_cs set_multicast_list promisc on\n");
1810 local->sparm.b5.a_promiscuous_mode = 1;
1811 promisc = 1;
1812 ray_update_parm(dev, OBJID_promiscuous_mode,
1813 &promisc, sizeof(promisc));
1814 }
1815 } else {
1816 if (local->sparm.b5.a_promiscuous_mode == 1) {
1817 pr_debug("ray_cs set_multicast_list promisc off\n");
1818 local->sparm.b5.a_promiscuous_mode = 0;
1819 promisc = 0;
1820 ray_update_parm(dev, OBJID_promiscuous_mode,
1821 &promisc, sizeof(promisc));
1822 }
1823 }
1824
1825 if (dev->flags & IFF_ALLMULTI)
1826 ray_update_multi_list(dev, 1);
1827 else {
1828 if (local->num_multi != netdev_mc_count(dev))
1829 ray_update_multi_list(dev, 0);
1830 }
1831 } /* end set_multicast_list */
1832
1833 /*=============================================================================
1834 * All routines below here are run at interrupt time.
1835 =============================================================================*/
1836 static irqreturn_t ray_interrupt(int irq, void *dev_id)
1837 {
1838 struct net_device *dev = (struct net_device *)dev_id;
1839 struct pcmcia_device *link;
1840 ray_dev_t *local;
1841 struct ccs __iomem *pccs;
1842 struct rcs __iomem *prcs;
1843 UCHAR rcsindex;
1844 UCHAR tmp;
1845 UCHAR cmd;
1846 UCHAR status;
1847 UCHAR memtmp[ESSID_SIZE + 1];
1848
1849
1850 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */
1851 return IRQ_NONE;
1852
1853 pr_debug("ray_cs: interrupt for *dev=%p\n", dev);
1854
1855 local = netdev_priv(dev);
1856 link = local->finder;
1857 if (!pcmcia_dev_present(link)) {
1858 pr_debug(
1859 "ray_cs interrupt from device not present or suspended.\n");
1860 return IRQ_NONE;
1861 }
1862 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1863
1864 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
1865 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex);
1866 clear_interrupt(local);
1867 return IRQ_HANDLED;
1868 }
1869 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */
1870 pccs = ccs_base(local) + rcsindex;
1871 cmd = readb(&pccs->cmd);
1872 status = readb(&pccs->buffer_status);
1873 switch (cmd) {
1874 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */
1875 del_timer(&local->timer);
1876 if (status == CCS_COMMAND_COMPLETE) {
1877 dev_dbg(&link->dev,
1878 "ray_cs interrupt download_startup_parameters OK\n");
1879 } else {
1880 dev_dbg(&link->dev,
1881 "ray_cs interrupt download_startup_parameters fail\n");
1882 }
1883 break;
1884 case CCS_UPDATE_PARAMS:
1885 dev_dbg(&link->dev, "ray_cs interrupt update params done\n");
1886 if (status != CCS_COMMAND_COMPLETE) {
1887 tmp =
1888 readb(&pccs->var.update_param.
1889 failure_cause);
1890 dev_dbg(&link->dev,
1891 "ray_cs interrupt update params failed - reason %d\n",
1892 tmp);
1893 }
1894 break;
1895 case CCS_REPORT_PARAMS:
1896 dev_dbg(&link->dev, "ray_cs interrupt report params done\n");
1897 break;
1898 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
1899 dev_dbg(&link->dev,
1900 "ray_cs interrupt CCS Update Multicast List done\n");
1901 break;
1902 case CCS_UPDATE_POWER_SAVINGS_MODE:
1903 dev_dbg(&link->dev,
1904 "ray_cs interrupt update power save mode done\n");
1905 break;
1906 case CCS_START_NETWORK:
1907 case CCS_JOIN_NETWORK:
1908 memcpy(memtmp, local->sparm.b4.a_current_ess_id,
1909 ESSID_SIZE);
1910 memtmp[ESSID_SIZE] = '\0';
1911
1912 if (status == CCS_COMMAND_COMPLETE) {
1913 if (readb
1914 (&pccs->var.start_network.net_initiated) ==
1915 1) {
1916 dev_dbg(&link->dev,
1917 "ray_cs interrupt network \"%s\" started\n",
1918 memtmp);
1919 } else {
1920 dev_dbg(&link->dev,
1921 "ray_cs interrupt network \"%s\" joined\n",
1922 memtmp);
1923 }
1924 memcpy_fromio(&local->bss_id,
1925 pccs->var.start_network.bssid,
1926 ADDRLEN);
1927
1928 if (local->fw_ver == 0x55)
1929 local->net_default_tx_rate = 3;
1930 else
1931 local->net_default_tx_rate =
1932 readb(&pccs->var.start_network.
1933 net_default_tx_rate);
1934 local->encryption =
1935 readb(&pccs->var.start_network.encryption);
1936 if (!sniffer && (local->net_type == INFRA)
1937 && !(local->sparm.b4.a_acting_as_ap_status)) {
1938 authenticate(local);
1939 }
1940 local->card_status = CARD_ACQ_COMPLETE;
1941 } else {
1942 local->card_status = CARD_ACQ_FAILED;
1943
1944 del_timer(&local->timer);
1945 local->timer.expires = jiffies + HZ * 5;
1946 if (status == CCS_START_NETWORK) {
1947 dev_dbg(&link->dev,
1948 "ray_cs interrupt network \"%s\" start failed\n",
1949 memtmp);
1950 local->timer.function = start_net;
1951 } else {
1952 dev_dbg(&link->dev,
1953 "ray_cs interrupt network \"%s\" join failed\n",
1954 memtmp);
1955 local->timer.function = join_net;
1956 }
1957 add_timer(&local->timer);
1958 }
1959 break;
1960 case CCS_START_ASSOCIATION:
1961 if (status == CCS_COMMAND_COMPLETE) {
1962 local->card_status = CARD_ASSOC_COMPLETE;
1963 dev_dbg(&link->dev, "ray_cs association successful\n");
1964 } else {
1965 dev_dbg(&link->dev, "ray_cs association failed,\n");
1966 local->card_status = CARD_ASSOC_FAILED;
1967 join_net(&local->timer);
1968 }
1969 break;
1970 case CCS_TX_REQUEST:
1971 if (status == CCS_COMMAND_COMPLETE) {
1972 dev_dbg(&link->dev,
1973 "ray_cs interrupt tx request complete\n");
1974 } else {
1975 dev_dbg(&link->dev,
1976 "ray_cs interrupt tx request failed\n");
1977 }
1978 if (!sniffer)
1979 netif_start_queue(dev);
1980 netif_wake_queue(dev);
1981 break;
1982 case CCS_TEST_MEMORY:
1983 dev_dbg(&link->dev, "ray_cs interrupt mem test done\n");
1984 break;
1985 case CCS_SHUTDOWN:
1986 dev_dbg(&link->dev,
1987 "ray_cs interrupt Unexpected CCS returned - Shutdown\n");
1988 break;
1989 case CCS_DUMP_MEMORY:
1990 dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n");
1991 break;
1992 case CCS_START_TIMER:
1993 dev_dbg(&link->dev,
1994 "ray_cs interrupt DING - raylink timer expired\n");
1995 break;
1996 default:
1997 dev_dbg(&link->dev,
1998 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",
1999 rcsindex, cmd);
2000 }
2001 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
2002 } else { /* It's an RCS */
2003
2004 prcs = rcs_base(local) + rcsindex;
2005
2006 switch (readb(&prcs->interrupt_id)) {
2007 case PROCESS_RX_PACKET:
2008 ray_rx(dev, local, prcs);
2009 break;
2010 case REJOIN_NET_COMPLETE:
2011 dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n");
2012 local->card_status = CARD_ACQ_COMPLETE;
2013 /* do we need to clear tx buffers CCS's? */
2014 if (local->sparm.b4.a_network_type == ADHOC) {
2015 if (!sniffer)
2016 netif_start_queue(dev);
2017 } else {
2018 memcpy_fromio(&local->bss_id,
2019 prcs->var.rejoin_net_complete.
2020 bssid, ADDRLEN);
2021 dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n",
2022 local->bss_id);
2023 if (!sniffer)
2024 authenticate(local);
2025 }
2026 break;
2027 case ROAMING_INITIATED:
2028 dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n");
2029 netif_stop_queue(dev);
2030 local->card_status = CARD_DOING_ACQ;
2031 break;
2032 case JAPAN_CALL_SIGN_RXD:
2033 dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n");
2034 break;
2035 default:
2036 dev_dbg(&link->dev,
2037 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",
2038 rcsindex,
2039 (unsigned int)readb(&prcs->interrupt_id));
2040 break;
2041 }
2042 writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2043 }
2044 clear_interrupt(local);
2045 return IRQ_HANDLED;
2046 } /* ray_interrupt */
2047
2048 /*===========================================================================*/
2049 static void ray_rx(struct net_device *dev, ray_dev_t *local,
2050 struct rcs __iomem *prcs)
2051 {
2052 int rx_len;
2053 unsigned int pkt_addr;
2054 void __iomem *pmsg;
2055 pr_debug("ray_rx process rx packet\n");
2056
2057 /* Calculate address of packet within Rx buffer */
2058 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2059 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2060 /* Length of first packet fragment */
2061 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2062 + readb(&prcs->var.rx_packet.rx_data_length[1]);
2063
2064 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2065 pmsg = local->rmem + pkt_addr;
2066 switch (readb(pmsg)) {
2067 case DATA_TYPE:
2068 pr_debug("ray_rx data type\n");
2069 rx_data(dev, prcs, pkt_addr, rx_len);
2070 break;
2071 case AUTHENTIC_TYPE:
2072 pr_debug("ray_rx authentic type\n");
2073 if (sniffer)
2074 rx_data(dev, prcs, pkt_addr, rx_len);
2075 else
2076 rx_authenticate(local, prcs, pkt_addr, rx_len);
2077 break;
2078 case DEAUTHENTIC_TYPE:
2079 pr_debug("ray_rx deauth type\n");
2080 if (sniffer)
2081 rx_data(dev, prcs, pkt_addr, rx_len);
2082 else
2083 rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2084 break;
2085 case NULL_MSG_TYPE:
2086 pr_debug("ray_cs rx NULL msg\n");
2087 break;
2088 case BEACON_TYPE:
2089 pr_debug("ray_rx beacon type\n");
2090 if (sniffer)
2091 rx_data(dev, prcs, pkt_addr, rx_len);
2092
2093 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr,
2094 rx_len < sizeof(struct beacon_rx) ?
2095 rx_len : sizeof(struct beacon_rx));
2096
2097 local->beacon_rxed = 1;
2098 /* Get the statistics so the card counters never overflow */
2099 ray_get_stats(dev);
2100 break;
2101 default:
2102 pr_debug("ray_cs unknown pkt type %2x\n",
2103 (unsigned int)readb(pmsg));
2104 break;
2105 }
2106
2107 } /* end ray_rx */
2108
2109 /*===========================================================================*/
2110 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
2111 unsigned int pkt_addr, int rx_len)
2112 {
2113 struct sk_buff *skb = NULL;
2114 struct rcs __iomem *prcslink = prcs;
2115 ray_dev_t *local = netdev_priv(dev);
2116 UCHAR *rx_ptr;
2117 int total_len;
2118 int tmp;
2119 #ifdef WIRELESS_SPY
2120 int siglev = local->last_rsl;
2121 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */
2122 #endif
2123
2124 if (!sniffer) {
2125 if (translate) {
2126 /* TBD length needs fixing for translated header */
2127 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2128 rx_len >
2129 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2130 FCS_LEN)) {
2131 pr_debug(
2132 "ray_cs invalid packet length %d received\n",
2133 rx_len);
2134 return;
2135 }
2136 } else { /* encapsulated ethernet */
2137
2138 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2139 rx_len >
2140 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2141 FCS_LEN)) {
2142 pr_debug(
2143 "ray_cs invalid packet length %d received\n",
2144 rx_len);
2145 return;
2146 }
2147 }
2148 }
2149 pr_debug("ray_cs rx_data packet\n");
2150 /* If fragmented packet, verify sizes of fragments add up */
2151 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2152 pr_debug("ray_cs rx'ed fragment\n");
2153 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2154 + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2155 total_len = tmp;
2156 prcslink = prcs;
2157 do {
2158 tmp -=
2159 (readb(&prcslink->var.rx_packet.rx_data_length[0])
2160 << 8)
2161 + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2162 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index)
2163 == 0xFF || tmp < 0)
2164 break;
2165 prcslink = rcs_base(local)
2166 + readb(&prcslink->link_field);
2167 } while (1);
2168
2169 if (tmp < 0) {
2170 pr_debug(
2171 "ray_cs rx_data fragment lengths don't add up\n");
2172 local->stats.rx_dropped++;
2173 release_frag_chain(local, prcs);
2174 return;
2175 }
2176 } else { /* Single unfragmented packet */
2177 total_len = rx_len;
2178 }
2179
2180 skb = dev_alloc_skb(total_len + 5);
2181 if (skb == NULL) {
2182 pr_debug("ray_cs rx_data could not allocate skb\n");
2183 local->stats.rx_dropped++;
2184 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2185 release_frag_chain(local, prcs);
2186 return;
2187 }
2188 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */
2189
2190 pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len,
2191 rx_len);
2192
2193 /************************/
2194 /* Reserve enough room for the whole damn packet. */
2195 rx_ptr = skb_put(skb, total_len);
2196 /* Copy the whole packet to sk_buff */
2197 rx_ptr +=
2198 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2199 /* Get source address */
2200 #ifdef WIRELESS_SPY
2201 skb_copy_from_linear_data_offset(skb,
2202 offsetof(struct mac_header, addr_2),
2203 linksrcaddr, ETH_ALEN);
2204 #endif
2205 /* Now, deal with encapsulation/translation/sniffer */
2206 if (!sniffer) {
2207 if (!translate) {
2208 /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2209 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2210 skb_pull(skb, RX_MAC_HEADER_LENGTH);
2211 } else {
2212 /* Do translation */
2213 untranslate(local, skb, total_len);
2214 }
2215 } else { /* sniffer mode, so just pass whole packet */
2216 };
2217
2218 /************************/
2219 /* Now pick up the rest of the fragments if any */
2220 tmp = 17;
2221 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2222 prcslink = prcs;
2223 pr_debug("ray_cs rx_data in fragment loop\n");
2224 do {
2225 prcslink = rcs_base(local)
2226 +
2227 readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2228 rx_len =
2229 ((readb(&prcslink->var.rx_packet.rx_data_length[0])
2230 << 8)
2231 +
2232 readb(&prcslink->var.rx_packet.rx_data_length[1]))
2233 & RX_BUFF_END;
2234 pkt_addr =
2235 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) <<
2236 8)
2237 + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2238 & RX_BUFF_END;
2239
2240 rx_ptr +=
2241 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2242
2243 } while (tmp-- &&
2244 readb(&prcslink->var.rx_packet.next_frag_rcs_index) !=
2245 0xFF);
2246 release_frag_chain(local, prcs);
2247 }
2248
2249 skb->protocol = eth_type_trans(skb, dev);
2250 netif_rx(skb);
2251 local->stats.rx_packets++;
2252 local->stats.rx_bytes += total_len;
2253
2254 /* Gather signal strength per address */
2255 #ifdef WIRELESS_SPY
2256 /* For the Access Point or the node having started the ad-hoc net
2257 * note : ad-hoc work only in some specific configurations, but we
2258 * kludge in ray_get_wireless_stats... */
2259 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) {
2260 /* Update statistics */
2261 /*local->wstats.qual.qual = none ? */
2262 local->wstats.qual.level = siglev;
2263 /*local->wstats.qual.noise = none ? */
2264 local->wstats.qual.updated = 0x2;
2265 }
2266 /* Now, update the spy stuff */
2267 {
2268 struct iw_quality wstats;
2269 wstats.level = siglev;
2270 /* wstats.noise = none ? */
2271 /* wstats.qual = none ? */
2272 wstats.updated = 0x2;
2273 /* Update spy records */
2274 wireless_spy_update(dev, linksrcaddr, &wstats);
2275 }
2276 #endif /* WIRELESS_SPY */
2277 } /* end rx_data */
2278
2279 /*===========================================================================*/
2280 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2281 {
2282 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH);
2283 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2284 __be16 type = *(__be16 *) psnap->ethertype;
2285 int delta;
2286 struct ethhdr *peth;
2287 UCHAR srcaddr[ADDRLEN];
2288 UCHAR destaddr[ADDRLEN];
2289 static const UCHAR org_bridge[3] = { 0, 0, 0xf8 };
2290 static const UCHAR org_1042[3] = { 0, 0, 0 };
2291
2292 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2293 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2294
2295 #if 0
2296 if {
2297 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
2298 DUMP_PREFIX_NONE, 16, 1,
2299 skb->data, 64, true);
2300 printk(KERN_DEBUG
2301 "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2302 ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
2303 psnap->org[0], psnap->org[1], psnap->org[2]);
2304 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data);
2305 }
2306 #endif
2307
2308 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2309 /* not a snap type so leave it alone */
2310 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2311 psnap->dsap, psnap->ssap, psnap->ctrl);
2312
2313 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2314 peth = (struct ethhdr *)(skb->data + delta);
2315 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2316 } else { /* Its a SNAP */
2317 if (memcmp(psnap->org, org_bridge, 3) == 0) {
2318 /* EtherII and nuke the LLC */
2319 pr_debug("ray_cs untranslate Bridge encap\n");
2320 delta = RX_MAC_HEADER_LENGTH
2321 + sizeof(struct snaphdr_t) - ETH_HLEN;
2322 peth = (struct ethhdr *)(skb->data + delta);
2323 peth->h_proto = type;
2324 } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2325 switch (ntohs(type)) {
2326 case ETH_P_IPX:
2327 case ETH_P_AARP:
2328 pr_debug("ray_cs untranslate RFC IPX/AARP\n");
2329 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2330 peth = (struct ethhdr *)(skb->data + delta);
2331 peth->h_proto =
2332 htons(len - RX_MAC_HEADER_LENGTH);
2333 break;
2334 default:
2335 pr_debug("ray_cs untranslate RFC default\n");
2336 delta = RX_MAC_HEADER_LENGTH +
2337 sizeof(struct snaphdr_t) - ETH_HLEN;
2338 peth = (struct ethhdr *)(skb->data + delta);
2339 peth->h_proto = type;
2340 break;
2341 }
2342 } else {
2343 printk("ray_cs untranslate very confused by packet\n");
2344 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2345 peth = (struct ethhdr *)(skb->data + delta);
2346 peth->h_proto = type;
2347 }
2348 }
2349 /* TBD reserve skb_reserve(skb, delta); */
2350 skb_pull(skb, delta);
2351 pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta,
2352 skb->data);
2353 memcpy(peth->h_dest, destaddr, ADDRLEN);
2354 memcpy(peth->h_source, srcaddr, ADDRLEN);
2355 #if 0
2356 {
2357 int i;
2358 printk(KERN_DEBUG "skb->data after untranslate:");
2359 for (i = 0; i < 64; i++)
2360 printk("%02x ", skb->data[i]);
2361 printk("\n");
2362 }
2363 #endif
2364 } /* end untranslate */
2365
2366 /*===========================================================================*/
2367 /* Copy data from circular receive buffer to PC memory.
2368 * dest = destination address in PC memory
2369 * pkt_addr = source address in receive buffer
2370 * len = length of packet to copy
2371 */
2372 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr,
2373 int length)
2374 {
2375 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2376 if (wrap_bytes <= 0) {
2377 memcpy_fromio(dest, local->rmem + pkt_addr, length);
2378 } else { /* Packet wrapped in circular buffer */
2379
2380 memcpy_fromio(dest, local->rmem + pkt_addr,
2381 length - wrap_bytes);
2382 memcpy_fromio(dest + length - wrap_bytes, local->rmem,
2383 wrap_bytes);
2384 }
2385 return length;
2386 }
2387
2388 /*===========================================================================*/
2389 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs)
2390 {
2391 struct rcs __iomem *prcslink = prcs;
2392 int tmp = 17;
2393 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2394
2395 while (tmp--) {
2396 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2397 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2398 pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n",
2399 rcsindex);
2400 break;
2401 }
2402 prcslink = rcs_base(local) + rcsindex;
2403 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2404 }
2405 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2406 }
2407
2408 /*===========================================================================*/
2409 static void authenticate(ray_dev_t *local)
2410 {
2411 struct pcmcia_device *link = local->finder;
2412 dev_dbg(&link->dev, "ray_cs Starting authentication.\n");
2413 if (!(pcmcia_dev_present(link))) {
2414 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n");
2415 return;
2416 }
2417
2418 del_timer(&local->timer);
2419 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2420 local->timer.function = join_net;
2421 } else {
2422 local->timer.function = authenticate_timeout;
2423 }
2424 local->timer.expires = jiffies + HZ * 2;
2425 add_timer(&local->timer);
2426 local->authentication_state = AWAITING_RESPONSE;
2427 } /* end authenticate */
2428
2429 /*===========================================================================*/
2430 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2431 unsigned int pkt_addr, int rx_len)
2432 {
2433 UCHAR buff[256];
2434 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2435
2436 del_timer(&local->timer);
2437
2438 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2439 /* if we are trying to get authenticated */
2440 if (local->sparm.b4.a_network_type == ADHOC) {
2441 pr_debug("ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n",
2442 msg->var[0], msg->var[1], msg->var[2], msg->var[3],
2443 msg->var[4], msg->var[5]);
2444 if (msg->var[2] == 1) {
2445 pr_debug("ray_cs Sending authentication response.\n");
2446 if (!build_auth_frame
2447 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2448 local->authentication_state = NEED_TO_AUTH;
2449 memcpy(local->auth_id, msg->mac.addr_2,
2450 ADDRLEN);
2451 }
2452 }
2453 } else { /* Infrastructure network */
2454
2455 if (local->authentication_state == AWAITING_RESPONSE) {
2456 /* Verify authentication sequence #2 and success */
2457 if (msg->var[2] == 2) {
2458 if ((msg->var[3] | msg->var[4]) == 0) {
2459 pr_debug("Authentication successful\n");
2460 local->card_status = CARD_AUTH_COMPLETE;
2461 associate(local);
2462 local->authentication_state =
2463 AUTHENTICATED;
2464 } else {
2465 pr_debug("Authentication refused\n");
2466 local->card_status = CARD_AUTH_REFUSED;
2467 join_net(&local->timer);
2468 local->authentication_state =
2469 UNAUTHENTICATED;
2470 }
2471 }
2472 }
2473 }
2474
2475 } /* end rx_authenticate */
2476
2477 /*===========================================================================*/
2478 static void associate(ray_dev_t *local)
2479 {
2480 struct ccs __iomem *pccs;
2481 struct pcmcia_device *link = local->finder;
2482 struct net_device *dev = link->priv;
2483 int ccsindex;
2484 if (!(pcmcia_dev_present(link))) {
2485 dev_dbg(&link->dev, "ray_cs associate - device not present\n");
2486 return;
2487 }
2488 /* If no tx buffers available, return */
2489 if ((ccsindex = get_free_ccs(local)) < 0) {
2490 /* TBD should never be here but... what if we are? */
2491 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n");
2492 return;
2493 }
2494 dev_dbg(&link->dev, "ray_cs Starting association with access point\n");
2495 pccs = ccs_base(local) + ccsindex;
2496 /* fill in the CCS */
2497 writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2498 /* Interrupt the firmware to process the command */
2499 if (interrupt_ecf(local, ccsindex)) {
2500 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
2501 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2502
2503 del_timer(&local->timer);
2504 local->timer.expires = jiffies + HZ * 2;
2505 local->timer.function = join_net;
2506 add_timer(&local->timer);
2507 local->card_status = CARD_ASSOC_FAILED;
2508 return;
2509 }
2510 if (!sniffer)
2511 netif_start_queue(dev);
2512
2513 } /* end associate */
2514
2515 /*===========================================================================*/
2516 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2517 unsigned int pkt_addr, int rx_len)
2518 {
2519 /* UCHAR buff[256];
2520 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2521 */
2522 pr_debug("Deauthentication frame received\n");
2523 local->authentication_state = UNAUTHENTICATED;
2524 /* Need to reauthenticate or rejoin depending on reason code */
2525 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2526 */
2527 }
2528
2529 /*===========================================================================*/
2530 static void clear_interrupt(ray_dev_t *local)
2531 {
2532 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2533 }
2534
2535 /*===========================================================================*/
2536 #ifdef CONFIG_PROC_FS
2537 #define MAXDATA (PAGE_SIZE - 80)
2538
2539 static const char *card_status[] = {
2540 "Card inserted - uninitialized", /* 0 */
2541 "Card not downloaded", /* 1 */
2542 "Waiting for download parameters", /* 2 */
2543 "Card doing acquisition", /* 3 */
2544 "Acquisition complete", /* 4 */
2545 "Authentication complete", /* 5 */
2546 "Association complete", /* 6 */
2547 "???", "???", "???", "???", /* 7 8 9 10 undefined */
2548 "Card init error", /* 11 */
2549 "Download parameters error", /* 12 */
2550 "???", /* 13 */
2551 "Acquisition failed", /* 14 */
2552 "Authentication refused", /* 15 */
2553 "Association failed" /* 16 */
2554 };
2555
2556 static const char *nettype[] = { "Adhoc", "Infra " };
2557 static const char *framing[] = { "Encapsulation", "Translation" }
2558
2559 ;
2560 /*===========================================================================*/
2561 static int ray_cs_proc_show(struct seq_file *m, void *v)
2562 {
2563 /* Print current values which are not available via other means
2564 * eg ifconfig
2565 */
2566 int i;
2567 struct pcmcia_device *link;
2568 struct net_device *dev;
2569 ray_dev_t *local;
2570 UCHAR *p;
2571 struct freq_hop_element *pfh;
2572 UCHAR c[33];
2573
2574 link = this_device;
2575 if (!link)
2576 return 0;
2577 dev = (struct net_device *)link->priv;
2578 if (!dev)
2579 return 0;
2580 local = netdev_priv(dev);
2581 if (!local)
2582 return 0;
2583
2584 seq_puts(m, "Raylink Wireless LAN driver status\n");
2585 seq_printf(m, "%s\n", rcsid);
2586 /* build 4 does not report version, and field is 0x55 after memtest */
2587 seq_puts(m, "Firmware version = ");
2588 if (local->fw_ver == 0x55)
2589 seq_puts(m, "4 - Use dump_cis for more details\n");
2590 else
2591 seq_printf(m, "%2d.%02d.%02d\n",
2592 local->fw_ver, local->fw_bld, local->fw_var);
2593
2594 for (i = 0; i < 32; i++)
2595 c[i] = local->sparm.b5.a_current_ess_id[i];
2596 c[32] = 0;
2597 seq_printf(m, "%s network ESSID = \"%s\"\n",
2598 nettype[local->sparm.b5.a_network_type], c);
2599
2600 p = local->bss_id;
2601 seq_printf(m, "BSSID = %pM\n", p);
2602
2603 seq_printf(m, "Country code = %d\n",
2604 local->sparm.b5.a_curr_country_code);
2605
2606 i = local->card_status;
2607 if (i < 0)
2608 i = 10;
2609 if (i > 16)
2610 i = 10;
2611 seq_printf(m, "Card status = %s\n", card_status[i]);
2612
2613 seq_printf(m, "Framing mode = %s\n", framing[translate]);
2614
2615 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl);
2616
2617 if (local->beacon_rxed) {
2618 /* Pull some fields out of last beacon received */
2619 seq_printf(m, "Beacon Interval = %d Kus\n",
2620 local->last_bcn.beacon_intvl[0]
2621 + 256 * local->last_bcn.beacon_intvl[1]);
2622
2623 p = local->last_bcn.elements;
2624 if (p[0] == C_ESSID_ELEMENT_ID)
2625 p += p[1] + 2;
2626 else {
2627 seq_printf(m,
2628 "Parse beacon failed at essid element id = %d\n",
2629 p[0]);
2630 return 0;
2631 }
2632
2633 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2634 seq_puts(m, "Supported rate codes = ");
2635 for (i = 2; i < p[1] + 2; i++)
2636 seq_printf(m, "0x%02x ", p[i]);
2637 seq_putc(m, '\n');
2638 p += p[1] + 2;
2639 } else {
2640 seq_puts(m, "Parse beacon failed at rates element\n");
2641 return 0;
2642 }
2643
2644 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2645 pfh = (struct freq_hop_element *)p;
2646 seq_printf(m, "Hop dwell = %d Kus\n",
2647 pfh->dwell_time[0] +
2648 256 * pfh->dwell_time[1]);
2649 seq_printf(m, "Hop set = %d\n",
2650 pfh->hop_set);
2651 seq_printf(m, "Hop pattern = %d\n",
2652 pfh->hop_pattern);
2653 seq_printf(m, "Hop index = %d\n",
2654 pfh->hop_index);
2655 p += p[1] + 2;
2656 } else {
2657 seq_puts(m,
2658 "Parse beacon failed at FH param element\n");
2659 return 0;
2660 }
2661 } else {
2662 seq_puts(m, "No beacons received\n");
2663 }
2664 return 0;
2665 }
2666
2667 static int ray_cs_proc_open(struct inode *inode, struct file *file)
2668 {
2669 return single_open(file, ray_cs_proc_show, NULL);
2670 }
2671
2672 static const struct file_operations ray_cs_proc_fops = {
2673 .owner = THIS_MODULE,
2674 .open = ray_cs_proc_open,
2675 .read = seq_read,
2676 .llseek = seq_lseek,
2677 .release = single_release,
2678 };
2679 #endif
2680 /*===========================================================================*/
2681 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2682 {
2683 int addr;
2684 struct ccs __iomem *pccs;
2685 struct tx_msg __iomem *ptx;
2686 int ccsindex;
2687
2688 /* If no tx buffers available, return */
2689 if ((ccsindex = get_free_tx_ccs(local)) < 0) {
2690 pr_debug("ray_cs send authenticate - No free tx ccs\n");
2691 return -1;
2692 }
2693
2694 pccs = ccs_base(local) + ccsindex;
2695
2696 /* Address in card space */
2697 addr = TX_BUF_BASE + (ccsindex << 11);
2698 /* fill in the CCS */
2699 writeb(CCS_TX_REQUEST, &pccs->cmd);
2700 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2701 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2702 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2703 writeb(TX_AUTHENTICATE_LENGTH_LSB,
2704 pccs->var.tx_request.tx_data_length + 1);
2705 writeb(0, &pccs->var.tx_request.pow_sav_mode);
2706
2707 ptx = local->sram + addr;
2708 /* fill in the mac header */
2709 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2710 writeb(0, &ptx->mac.frame_ctl_2);
2711
2712 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2713 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2714 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2715
2716 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2717 memset_io(ptx->var, 0, 6);
2718 writeb(auth_type & 0xff, ptx->var + 2);
2719
2720 /* Interrupt the firmware to process the command */
2721 if (interrupt_ecf(local, ccsindex)) {
2722 pr_debug(
2723 "ray_cs send authentication request failed - ECF not ready for intr\n");
2724 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2725 return -1;
2726 }
2727 return 0;
2728 } /* End build_auth_frame */
2729
2730 /*===========================================================================*/
2731 #ifdef CONFIG_PROC_FS
2732 static ssize_t ray_cs_essid_proc_write(struct file *file,
2733 const char __user *buffer, size_t count, loff_t *pos)
2734 {
2735 static char proc_essid[33];
2736 unsigned int len = count;
2737
2738 if (len > 32)
2739 len = 32;
2740 memset(proc_essid, 0, 33);
2741 if (copy_from_user(proc_essid, buffer, len))
2742 return -EFAULT;
2743 essid = proc_essid;
2744 return count;
2745 }
2746
2747 static const struct file_operations ray_cs_essid_proc_fops = {
2748 .owner = THIS_MODULE,
2749 .write = ray_cs_essid_proc_write,
2750 .llseek = noop_llseek,
2751 };
2752
2753 static ssize_t int_proc_write(struct file *file, const char __user *buffer,
2754 size_t count, loff_t *pos)
2755 {
2756 static char proc_number[10];
2757 char *p;
2758 int nr, len;
2759
2760 if (!count)
2761 return 0;
2762
2763 if (count > 9)
2764 return -EINVAL;
2765 if (copy_from_user(proc_number, buffer, count))
2766 return -EFAULT;
2767 p = proc_number;
2768 nr = 0;
2769 len = count;
2770 do {
2771 unsigned int c = *p - '0';
2772 if (c > 9)
2773 return -EINVAL;
2774 nr = nr * 10 + c;
2775 p++;
2776 } while (--len);
2777 *(int *)PDE_DATA(file_inode(file)) = nr;
2778 return count;
2779 }
2780
2781 static const struct file_operations int_proc_fops = {
2782 .owner = THIS_MODULE,
2783 .write = int_proc_write,
2784 .llseek = noop_llseek,
2785 };
2786 #endif
2787
2788 static const struct pcmcia_device_id ray_ids[] = {
2789 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2790 PCMCIA_DEVICE_NULL,
2791 };
2792
2793 MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2794
2795 static struct pcmcia_driver ray_driver = {
2796 .owner = THIS_MODULE,
2797 .name = "ray_cs",
2798 .probe = ray_probe,
2799 .remove = ray_detach,
2800 .id_table = ray_ids,
2801 .suspend = ray_suspend,
2802 .resume = ray_resume,
2803 };
2804
2805 static int __init init_ray_cs(void)
2806 {
2807 int rc;
2808
2809 pr_debug("%s\n", rcsid);
2810 rc = pcmcia_register_driver(&ray_driver);
2811 pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n",
2812 rc);
2813
2814 #ifdef CONFIG_PROC_FS
2815 proc_mkdir("driver/ray_cs", NULL);
2816
2817 proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops);
2818 proc_create("driver/ray_cs/essid", S_IWUSR, NULL, &ray_cs_essid_proc_fops);
2819 proc_create_data("driver/ray_cs/net_type", S_IWUSR, NULL, &int_proc_fops, &net_type);
2820 proc_create_data("driver/ray_cs/translate", S_IWUSR, NULL, &int_proc_fops, &translate);
2821 #endif
2822 if (translate != 0)
2823 translate = 1;
2824 return 0;
2825 } /* init_ray_cs */
2826
2827 /*===========================================================================*/
2828
2829 static void __exit exit_ray_cs(void)
2830 {
2831 pr_debug("ray_cs: cleanup_module\n");
2832
2833 #ifdef CONFIG_PROC_FS
2834 remove_proc_entry("driver/ray_cs/ray_cs", NULL);
2835 remove_proc_entry("driver/ray_cs/essid", NULL);
2836 remove_proc_entry("driver/ray_cs/net_type", NULL);
2837 remove_proc_entry("driver/ray_cs/translate", NULL);
2838 remove_proc_entry("driver/ray_cs", NULL);
2839 #endif
2840
2841 pcmcia_unregister_driver(&ray_driver);
2842 } /* exit_ray_cs */
2843
2844 module_init(init_ray_cs);
2845 module_exit(exit_ray_cs);
2846
2847 /*===========================================================================*/
Linux with added FPC-III support