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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / net / wireless / ray_cs.c
blobc1d542bfa530653d7c8c9bed77e7f276f52eea90
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*=============================================================================
3 *
4 * A PCMCIA client driver for the Raylink wireless LAN card.
5 * The starting point for this module was the skeleton.c in the
6 * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net
7 *
8 * Copyright (c) 1998 Corey Thomas (corey@world.std.com)
9 *
10 * Changes:
11 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
12 * - reorganize kmallocs in ray_attach, checking all for failure
13 * and releasing the previous allocations if one fails
14 *
15 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003
16 * - Audit copy_to_user in ioctl(SIOCGIWESSID)
17 *
18 =============================================================================*/
19
20 #include <linux/module.h>
21 #include <linux/kernel.h>
22 #include <linux/proc_fs.h>
23 #include <linux/ptrace.h>
24 #include <linux/seq_file.h>
25 #include <linux/string.h>
26 #include <linux/timer.h>
27 #include <linux/init.h>
28 #include <linux/netdevice.h>
29 #include <linux/etherdevice.h>
30 #include <linux/if_arp.h>
31 #include <linux/ioport.h>
32 #include <linux/skbuff.h>
33 #include <linux/ieee80211.h>
34
35 #include <pcmcia/cistpl.h>
36 #include <pcmcia/cisreg.h>
37 #include <pcmcia/ds.h>
38
39 #include <linux/wireless.h>
40 #include <net/iw_handler.h>
41
42 #include <asm/io.h>
43 #include <asm/byteorder.h>
44 #include <linux/uaccess.h>
45
46 /* Warning : these stuff will slow down the driver... */
47 #define WIRELESS_SPY /* Enable spying addresses */
48 /* Definitions we need for spy */
49 typedef struct iw_statistics iw_stats;
50 typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */
51
52 #include "rayctl.h"
53 #include "ray_cs.h"
54
55
56 /** Prototypes based on PCMCIA skeleton driver *******************************/
57 static int ray_config(struct pcmcia_device *link);
58 static void ray_release(struct pcmcia_device *link);
59 static void ray_detach(struct pcmcia_device *p_dev);
60
61 /***** Prototypes indicated by device structure ******************************/
62 static int ray_dev_close(struct net_device *dev);
63 static int ray_dev_config(struct net_device *dev, struct ifmap *map);
64 static struct net_device_stats *ray_get_stats(struct net_device *dev);
65 static int ray_dev_init(struct net_device *dev);
66
67 static int ray_open(struct net_device *dev);
68 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
69 struct net_device *dev);
70 static void set_multicast_list(struct net_device *dev);
71 static void ray_update_multi_list(struct net_device *dev, int all);
72 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
73 unsigned char *data, int len);
74 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
75 UCHAR msg_type, unsigned char *data);
76 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
77 static iw_stats *ray_get_wireless_stats(struct net_device *dev);
78 static const struct iw_handler_def ray_handler_def;
79
80 /***** Prototypes for raylink functions **************************************/
81 static void authenticate(ray_dev_t *local);
82 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
83 static void authenticate_timeout(struct timer_list *t);
84 static int get_free_ccs(ray_dev_t *local);
85 static int get_free_tx_ccs(ray_dev_t *local);
86 static void init_startup_params(ray_dev_t *local);
87 static int parse_addr(char *in_str, UCHAR *out);
88 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type);
89 static int ray_init(struct net_device *dev);
90 static int interrupt_ecf(ray_dev_t *local, int ccs);
91 static void ray_reset(struct net_device *dev);
92 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
93 static void verify_dl_startup(struct timer_list *t);
94
95 /* Prototypes for interrpt time functions **********************************/
96 static irqreturn_t ray_interrupt(int reg, void *dev_id);
97 static void clear_interrupt(ray_dev_t *local);
98 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
99 unsigned int pkt_addr, int rx_len);
100 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
101 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
102 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
103 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
104 unsigned int pkt_addr, int rx_len);
105 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
106 unsigned int pkt_addr, int rx_len);
107 static void associate(ray_dev_t *local);
108
109 /* Card command functions */
110 static int dl_startup_params(struct net_device *dev);
111 static void join_net(struct timer_list *t);
112 static void start_net(struct timer_list *t);
113
114 /*===========================================================================*/
115 /* Parameters that can be set with 'insmod' */
116
117 /* ADHOC=0, Infrastructure=1 */
118 static int net_type = ADHOC;
119
120 /* Hop dwell time in Kus (1024 us units defined by 802.11) */
121 static int hop_dwell = 128;
122
123 /* Beacon period in Kus */
124 static int beacon_period = 256;
125
126 /* power save mode (0 = off, 1 = save power) */
127 static int psm;
128
129 /* String for network's Extended Service Set ID. 32 Characters max */
130 static char *essid;
131
132 /* Default to encapsulation unless translation requested */
133 static bool translate = true;
134
135 static int country = USA;
136
137 static int sniffer;
138
139 static int bc;
140
141 /* 48 bit physical card address if overriding card's real physical
142 * address is required. Since IEEE 802.11 addresses are 48 bits
143 * like ethernet, an int can't be used, so a string is used. To
144 * allow use of addresses starting with a decimal digit, the first
145 * character must be a letter and will be ignored. This letter is
146 * followed by up to 12 hex digits which are the address. If less
147 * than 12 digits are used, the address will be left filled with 0's.
148 * Note that bit 0 of the first byte is the broadcast bit, and evil
149 * things will happen if it is not 0 in a card address.
150 */
151 static char *phy_addr = NULL;
152
153 static unsigned int ray_mem_speed = 500;
154
155 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
156 static struct pcmcia_device *this_device = NULL;
157
158 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
159 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
160 MODULE_LICENSE("GPL");
161
162 module_param(net_type, int, 0);
163 module_param(hop_dwell, int, 0);
164 module_param(beacon_period, int, 0);
165 module_param(psm, int, 0);
166 module_param(essid, charp, 0);
167 module_param(translate, bool, 0);
168 module_param(country, int, 0);
169 module_param(sniffer, int, 0);
170 module_param(bc, int, 0);
171 module_param(phy_addr, charp, 0);
172 module_param(ray_mem_speed, int, 0);
173
174 static const UCHAR b5_default_startup_parms[] = {
175 0, 0, /* Adhoc station */
176 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
177 0, 0, 0, 0, 0, 0, 0, 0,
178 0, 0, 0, 0, 0, 0, 0, 0,
179 0, 0, 0, 0, 0, 0, 0, 0,
180 1, 0, /* Active scan, CA Mode */
181 0, 0, 0, 0, 0, 0, /* No default MAC addr */
182 0x7f, 0xff, /* Frag threshold */
183 0x00, 0x80, /* Hop time 128 Kus */
184 0x01, 0x00, /* Beacon period 256 Kus */
185 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
186 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */
187 0x7f, 0xff, /* RTS threshold */
188 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
189 0x05, /* assoc resp timeout thresh */
190 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */
191 0, /* Promiscuous mode */
192 0x0c, 0x0bd, /* Unique word */
193 0x32, /* Slot time */
194 0xff, 0xff, /* roam-low snr, low snr count */
195 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
196 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */
197 /* b4 - b5 differences start here */
198 0x00, 0x3f, /* CW max */
199 0x00, 0x0f, /* CW min */
200 0x04, 0x08, /* Noise gain, limit offset */
201 0x28, 0x28, /* det rssi, med busy offsets */
202 7, /* det sync thresh */
203 0, 2, 2, /* test mode, min, max */
204 0, /* allow broadcast SSID probe resp */
205 0, 0, /* privacy must start, can join */
206 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */
207 };
208
209 static const UCHAR b4_default_startup_parms[] = {
210 0, 0, /* Adhoc station */
211 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
212 0, 0, 0, 0, 0, 0, 0, 0,
213 0, 0, 0, 0, 0, 0, 0, 0,
214 0, 0, 0, 0, 0, 0, 0, 0,
215 1, 0, /* Active scan, CA Mode */
216 0, 0, 0, 0, 0, 0, /* No default MAC addr */
217 0x7f, 0xff, /* Frag threshold */
218 0x02, 0x00, /* Hop time */
219 0x00, 0x01, /* Beacon period */
220 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
221 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */
222 0x7f, 0xff, /* RTS threshold */
223 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
224 0x05, /* assoc resp timeout thresh */
225 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */
226 0, /* Promiscuous mode */
227 0x0c, 0x0bd, /* Unique word */
228 0x4e, /* Slot time (TBD seems wrong) */
229 0xff, 0xff, /* roam-low snr, low snr count */
230 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
231 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */
232 /* b4 - b5 differences start here */
233 0x3f, 0x0f, /* CW max, min */
234 0x04, 0x08, /* Noise gain, limit offset */
235 0x28, 0x28, /* det rssi, med busy offsets */
236 7, /* det sync thresh */
237 0, 2, 2, /* test mode, min, max */
238 0, /* rx/tx delay */
239 0, 0, 0, 0, 0, 0, /* current BSS id */
240 0 /* hop set */
241 };
242
243 /*===========================================================================*/
244 static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 };
245
246 static const char hop_pattern_length[] = { 1,
247 USA_HOP_MOD, EUROPE_HOP_MOD,
248 JAPAN_HOP_MOD, KOREA_HOP_MOD,
249 SPAIN_HOP_MOD, FRANCE_HOP_MOD,
250 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
251 JAPAN_TEST_HOP_MOD
252 };
253
254 static const char rcsid[] =
255 "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
256
257 static const struct net_device_ops ray_netdev_ops = {
258 .ndo_init = ray_dev_init,
259 .ndo_open = ray_open,
260 .ndo_stop = ray_dev_close,
261 .ndo_start_xmit = ray_dev_start_xmit,
262 .ndo_set_config = ray_dev_config,
263 .ndo_get_stats = ray_get_stats,
264 .ndo_set_rx_mode = set_multicast_list,
265 .ndo_set_mac_address = eth_mac_addr,
266 .ndo_validate_addr = eth_validate_addr,
267 };
268
269 static int ray_probe(struct pcmcia_device *p_dev)
270 {
271 ray_dev_t *local;
272 struct net_device *dev;
273
274 dev_dbg(&p_dev->dev, "ray_attach()\n");
275
276 /* Allocate space for private device-specific data */
277 dev = alloc_etherdev(sizeof(ray_dev_t));
278 if (!dev)
279 goto fail_alloc_dev;
280
281 local = netdev_priv(dev);
282 local->finder = p_dev;
283
284 /* The io structure describes IO port mapping. None used here */
285 p_dev->resource[0]->end = 0;
286 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
287
288 /* General socket configuration */
289 p_dev->config_flags |= CONF_ENABLE_IRQ;
290 p_dev->config_index = 1;
291
292 p_dev->priv = dev;
293
294 local->finder = p_dev;
295 local->card_status = CARD_INSERTED;
296 local->authentication_state = UNAUTHENTICATED;
297 local->num_multi = 0;
298 dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n",
299 p_dev, dev, local, &ray_interrupt);
300
301 /* Raylink entries in the device structure */
302 dev->netdev_ops = &ray_netdev_ops;
303 dev->wireless_handlers = &ray_handler_def;
304 #ifdef WIRELESS_SPY
305 local->wireless_data.spy_data = &local->spy_data;
306 dev->wireless_data = &local->wireless_data;
307 #endif /* WIRELESS_SPY */
308
309
310 dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n");
311 netif_stop_queue(dev);
312
313 timer_setup(&local->timer, NULL, 0);
314
315 this_device = p_dev;
316 return ray_config(p_dev);
317
318 fail_alloc_dev:
319 return -ENOMEM;
320 } /* ray_attach */
321
322 static void ray_detach(struct pcmcia_device *link)
323 {
324 struct net_device *dev;
325 ray_dev_t *local;
326
327 dev_dbg(&link->dev, "ray_detach\n");
328
329 this_device = NULL;
330 dev = link->priv;
331
332 ray_release(link);
333
334 local = netdev_priv(dev);
335 del_timer_sync(&local->timer);
336
337 if (link->priv) {
338 unregister_netdev(dev);
339 free_netdev(dev);
340 }
341 dev_dbg(&link->dev, "ray_cs ray_detach ending\n");
342 } /* ray_detach */
343
344 #define MAX_TUPLE_SIZE 128
345 static int ray_config(struct pcmcia_device *link)
346 {
347 int ret = 0;
348 int i;
349 struct net_device *dev = (struct net_device *)link->priv;
350 ray_dev_t *local = netdev_priv(dev);
351
352 dev_dbg(&link->dev, "ray_config\n");
353
354 /* Determine card type and firmware version */
355 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n",
356 link->prod_id[0] ? link->prod_id[0] : " ",
357 link->prod_id[1] ? link->prod_id[1] : " ",
358 link->prod_id[2] ? link->prod_id[2] : " ",
359 link->prod_id[3] ? link->prod_id[3] : " ");
360
361 /* Now allocate an interrupt line. Note that this does not
362 actually assign a handler to the interrupt.
363 */
364 ret = pcmcia_request_irq(link, ray_interrupt);
365 if (ret)
366 goto failed;
367 dev->irq = link->irq;
368
369 ret = pcmcia_enable_device(link);
370 if (ret)
371 goto failed;
372
373 /*** Set up 32k window for shared memory (transmit and control) ************/
374 link->resource[2]->flags |= WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
375 link->resource[2]->start = 0;
376 link->resource[2]->end = 0x8000;
377 ret = pcmcia_request_window(link, link->resource[2], ray_mem_speed);
378 if (ret)
379 goto failed;
380 ret = pcmcia_map_mem_page(link, link->resource[2], 0);
381 if (ret)
382 goto failed;
383 local->sram = ioremap(link->resource[2]->start,
384 resource_size(link->resource[2]));
385
386 /*** Set up 16k window for shared memory (receive buffer) ***************/
387 link->resource[3]->flags |=
388 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
389 link->resource[3]->start = 0;
390 link->resource[3]->end = 0x4000;
391 ret = pcmcia_request_window(link, link->resource[3], ray_mem_speed);
392 if (ret)
393 goto failed;
394 ret = pcmcia_map_mem_page(link, link->resource[3], 0x8000);
395 if (ret)
396 goto failed;
397 local->rmem = ioremap(link->resource[3]->start,
398 resource_size(link->resource[3]));
399
400 /*** Set up window for attribute memory ***********************************/
401 link->resource[4]->flags |=
402 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
403 link->resource[4]->start = 0;
404 link->resource[4]->end = 0x1000;
405 ret = pcmcia_request_window(link, link->resource[4], ray_mem_speed);
406 if (ret)
407 goto failed;
408 ret = pcmcia_map_mem_page(link, link->resource[4], 0);
409 if (ret)
410 goto failed;
411 local->amem = ioremap(link->resource[4]->start,
412 resource_size(link->resource[4]));
413
414 dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram);
415 dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem);
416 dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem);
417 if (ray_init(dev) < 0) {
418 ray_release(link);
419 return -ENODEV;
420 }
421
422 SET_NETDEV_DEV(dev, &link->dev);
423 i = register_netdev(dev);
424 if (i != 0) {
425 printk("ray_config register_netdev() failed\n");
426 ray_release(link);
427 return i;
428 }
429
430 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n",
431 dev->name, dev->irq, dev->dev_addr);
432
433 return 0;
434
435 failed:
436 ray_release(link);
437 return -ENODEV;
438 } /* ray_config */
439
440 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
441 {
442 return dev->sram + CCS_BASE;
443 }
444
445 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
446 {
447 /*
448 * This looks nonsensical, since there is a separate
449 * RCS_BASE. But the difference between a "struct rcs"
450 * and a "struct ccs" ends up being in the _index_ off
451 * the base, so the base pointer is the same for both
452 * ccs/rcs.
453 */
454 return dev->sram + CCS_BASE;
455 }
456
457 /*===========================================================================*/
458 static int ray_init(struct net_device *dev)
459 {
460 int i;
461 struct ccs __iomem *pccs;
462 ray_dev_t *local = netdev_priv(dev);
463 struct pcmcia_device *link = local->finder;
464 dev_dbg(&link->dev, "ray_init(0x%p)\n", dev);
465 if (!(pcmcia_dev_present(link))) {
466 dev_dbg(&link->dev, "ray_init - device not present\n");
467 return -1;
468 }
469
470 local->net_type = net_type;
471 local->sta_type = TYPE_STA;
472
473 /* Copy the startup results to local memory */
474 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,
475 sizeof(struct startup_res_6));
476
477 /* Check Power up test status and get mac address from card */
478 if (local->startup_res.startup_word != 0x80) {
479 printk(KERN_INFO "ray_init ERROR card status = %2x\n",
480 local->startup_res.startup_word);
481 local->card_status = CARD_INIT_ERROR;
482 return -1;
483 }
484
485 local->fw_ver = local->startup_res.firmware_version[0];
486 local->fw_bld = local->startup_res.firmware_version[1];
487 local->fw_var = local->startup_res.firmware_version[2];
488 dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver,
489 local->fw_bld);
490
491 local->tib_length = 0x20;
492 if ((local->fw_ver == 5) && (local->fw_bld >= 30))
493 local->tib_length = local->startup_res.tib_length;
494 dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length);
495 /* Initialize CCS's to buffer free state */
496 pccs = ccs_base(local);
497 for (i = 0; i < NUMBER_OF_CCS; i++) {
498 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
499 }
500 init_startup_params(local);
501
502 /* copy mac address to startup parameters */
503 if (!parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) {
504 memcpy(&local->sparm.b4.a_mac_addr,
505 &local->startup_res.station_addr, ADDRLEN);
506 }
507
508 clear_interrupt(local); /* Clear any interrupt from the card */
509 local->card_status = CARD_AWAITING_PARAM;
510 dev_dbg(&link->dev, "ray_init ending\n");
511 return 0;
512 } /* ray_init */
513
514 /*===========================================================================*/
515 /* Download startup parameters to the card and command it to read them */
516 static int dl_startup_params(struct net_device *dev)
517 {
518 int ccsindex;
519 ray_dev_t *local = netdev_priv(dev);
520 struct ccs __iomem *pccs;
521 struct pcmcia_device *link = local->finder;
522
523 dev_dbg(&link->dev, "dl_startup_params entered\n");
524 if (!(pcmcia_dev_present(link))) {
525 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n");
526 return -1;
527 }
528
529 /* Copy parameters to host to ECF area */
530 if (local->fw_ver == 0x55)
531 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
532 sizeof(struct b4_startup_params));
533 else
534 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
535 sizeof(struct b5_startup_params));
536
537 /* Fill in the CCS fields for the ECF */
538 if ((ccsindex = get_free_ccs(local)) < 0)
539 return -1;
540 local->dl_param_ccs = ccsindex;
541 pccs = ccs_base(local) + ccsindex;
542 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
543 dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n",
544 local->dl_param_ccs);
545 /* Interrupt the firmware to process the command */
546 if (interrupt_ecf(local, ccsindex)) {
547 printk(KERN_INFO "ray dl_startup_params failed - "
548 "ECF not ready for intr\n");
549 local->card_status = CARD_DL_PARAM_ERROR;
550 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
551 return -2;
552 }
553 local->card_status = CARD_DL_PARAM;
554 /* Start kernel timer to wait for dl startup to complete. */
555 local->timer.expires = jiffies + HZ / 2;
556 local->timer.function = verify_dl_startup;
557 add_timer(&local->timer);
558 dev_dbg(&link->dev,
559 "ray_cs dl_startup_params started timer for verify_dl_startup\n");
560 return 0;
561 } /* dl_startup_params */
562
563 /*===========================================================================*/
564 static void init_startup_params(ray_dev_t *local)
565 {
566 int i;
567
568 if (country > JAPAN_TEST)
569 country = USA;
570 else if (country < USA)
571 country = USA;
572 /* structure for hop time and beacon period is defined here using
573 * New 802.11D6.1 format. Card firmware is still using old format
574 * until version 6.
575 * Before After
576 * a_hop_time ms byte a_hop_time ms byte
577 * a_hop_time 2s byte a_hop_time ls byte
578 * a_hop_time ls byte a_beacon_period ms byte
579 * a_beacon_period a_beacon_period ls byte
580 *
581 * a_hop_time = uS a_hop_time = KuS
582 * a_beacon_period = hops a_beacon_period = KuS
583 *//* 64ms = 010000 */
584 if (local->fw_ver == 0x55) {
585 memcpy(&local->sparm.b4, b4_default_startup_parms,
586 sizeof(struct b4_startup_params));
587 /* Translate sane kus input values to old build 4/5 format */
588 /* i = hop time in uS truncated to 3 bytes */
589 i = (hop_dwell * 1024) & 0xffffff;
590 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
591 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
592 local->sparm.b4.a_beacon_period[0] = 0;
593 local->sparm.b4.a_beacon_period[1] =
594 ((beacon_period / hop_dwell) - 1) & 0xff;
595 local->sparm.b4.a_curr_country_code = country;
596 local->sparm.b4.a_hop_pattern_length =
597 hop_pattern_length[(int)country] - 1;
598 if (bc) {
599 local->sparm.b4.a_ack_timeout = 0x50;
600 local->sparm.b4.a_sifs = 0x3f;
601 }
602 } else { /* Version 5 uses real kus values */
603 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms,
604 sizeof(struct b5_startup_params));
605
606 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
607 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
608 local->sparm.b5.a_beacon_period[0] =
609 (beacon_period >> 8) & 0xff;
610 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
611 if (psm)
612 local->sparm.b5.a_power_mgt_state = 1;
613 local->sparm.b5.a_curr_country_code = country;
614 local->sparm.b5.a_hop_pattern_length =
615 hop_pattern_length[(int)country];
616 }
617
618 local->sparm.b4.a_network_type = net_type & 0x01;
619 local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
620
621 if (essid != NULL)
622 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
623 } /* init_startup_params */
624
625 /*===========================================================================*/
626 static void verify_dl_startup(struct timer_list *t)
627 {
628 ray_dev_t *local = from_timer(local, t, timer);
629 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
630 UCHAR status;
631 struct pcmcia_device *link = local->finder;
632
633 if (!(pcmcia_dev_present(link))) {
634 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n");
635 return;
636 }
637 #if 0
638 {
639 int i;
640 printk(KERN_DEBUG
641 "verify_dl_startup parameters sent via ccs %d:\n",
642 local->dl_param_ccs);
643 for (i = 0; i < sizeof(struct b5_startup_params); i++) {
644 printk(" %2x",
645 (unsigned int)readb(local->sram +
646 HOST_TO_ECF_BASE + i));
647 }
648 printk("\n");
649 }
650 #endif
651
652 status = readb(&pccs->buffer_status);
653 if (status != CCS_BUFFER_FREE) {
654 printk(KERN_INFO
655 "Download startup params failed. Status = %d\n",
656 status);
657 local->card_status = CARD_DL_PARAM_ERROR;
658 return;
659 }
660 if (local->sparm.b4.a_network_type == ADHOC)
661 start_net(&local->timer);
662 else
663 join_net(&local->timer);
664 } /* end verify_dl_startup */
665
666 /*===========================================================================*/
667 /* Command card to start a network */
668 static void start_net(struct timer_list *t)
669 {
670 ray_dev_t *local = from_timer(local, t, timer);
671 struct ccs __iomem *pccs;
672 int ccsindex;
673 struct pcmcia_device *link = local->finder;
674 if (!(pcmcia_dev_present(link))) {
675 dev_dbg(&link->dev, "ray_cs start_net - device not present\n");
676 return;
677 }
678 /* Fill in the CCS fields for the ECF */
679 if ((ccsindex = get_free_ccs(local)) < 0)
680 return;
681 pccs = ccs_base(local) + ccsindex;
682 writeb(CCS_START_NETWORK, &pccs->cmd);
683 writeb(0, &pccs->var.start_network.update_param);
684 /* Interrupt the firmware to process the command */
685 if (interrupt_ecf(local, ccsindex)) {
686 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n");
687 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
688 return;
689 }
690 local->card_status = CARD_DOING_ACQ;
691 } /* end start_net */
692
693 /*===========================================================================*/
694 /* Command card to join a network */
695 static void join_net(struct timer_list *t)
696 {
697 ray_dev_t *local = from_timer(local, t, timer);
698
699 struct ccs __iomem *pccs;
700 int ccsindex;
701 struct pcmcia_device *link = local->finder;
702
703 if (!(pcmcia_dev_present(link))) {
704 dev_dbg(&link->dev, "ray_cs join_net - device not present\n");
705 return;
706 }
707 /* Fill in the CCS fields for the ECF */
708 if ((ccsindex = get_free_ccs(local)) < 0)
709 return;
710 pccs = ccs_base(local) + ccsindex;
711 writeb(CCS_JOIN_NETWORK, &pccs->cmd);
712 writeb(0, &pccs->var.join_network.update_param);
713 writeb(0, &pccs->var.join_network.net_initiated);
714 /* Interrupt the firmware to process the command */
715 if (interrupt_ecf(local, ccsindex)) {
716 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n");
717 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
718 return;
719 }
720 local->card_status = CARD_DOING_ACQ;
721 }
722
723
724 static void ray_release(struct pcmcia_device *link)
725 {
726 struct net_device *dev = link->priv;
727 ray_dev_t *local = netdev_priv(dev);
728
729 dev_dbg(&link->dev, "ray_release\n");
730
731 del_timer(&local->timer);
732
733 iounmap(local->sram);
734 iounmap(local->rmem);
735 iounmap(local->amem);
736 pcmcia_disable_device(link);
737
738 dev_dbg(&link->dev, "ray_release ending\n");
739 }
740
741 static int ray_suspend(struct pcmcia_device *link)
742 {
743 struct net_device *dev = link->priv;
744
745 if (link->open)
746 netif_device_detach(dev);
747
748 return 0;
749 }
750
751 static int ray_resume(struct pcmcia_device *link)
752 {
753 struct net_device *dev = link->priv;
754
755 if (link->open) {
756 ray_reset(dev);
757 netif_device_attach(dev);
758 }
759
760 return 0;
761 }
762
763 /*===========================================================================*/
764 static int ray_dev_init(struct net_device *dev)
765 {
766 #ifdef RAY_IMMEDIATE_INIT
767 int i;
768 #endif /* RAY_IMMEDIATE_INIT */
769 ray_dev_t *local = netdev_priv(dev);
770 struct pcmcia_device *link = local->finder;
771
772 dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev);
773 if (!(pcmcia_dev_present(link))) {
774 dev_dbg(&link->dev, "ray_dev_init - device not present\n");
775 return -1;
776 }
777 #ifdef RAY_IMMEDIATE_INIT
778 /* Download startup parameters */
779 if ((i = dl_startup_params(dev)) < 0) {
780 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
781 "returns 0x%x\n", i);
782 return -1;
783 }
784 #else /* RAY_IMMEDIATE_INIT */
785 /* Postpone the card init so that we can still configure the card,
786 * for example using the Wireless Extensions. The init will happen
787 * in ray_open() - Jean II */
788 dev_dbg(&link->dev,
789 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
790 local->card_status);
791 #endif /* RAY_IMMEDIATE_INIT */
792
793 /* copy mac and broadcast addresses to linux device */
794 memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
795 eth_broadcast_addr(dev->broadcast);
796
797 dev_dbg(&link->dev, "ray_dev_init ending\n");
798 return 0;
799 }
800
801 /*===========================================================================*/
802 static int ray_dev_config(struct net_device *dev, struct ifmap *map)
803 {
804 ray_dev_t *local = netdev_priv(dev);
805 struct pcmcia_device *link = local->finder;
806 /* Dummy routine to satisfy device structure */
807 dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map);
808 if (!(pcmcia_dev_present(link))) {
809 dev_dbg(&link->dev, "ray_dev_config - device not present\n");
810 return -1;
811 }
812
813 return 0;
814 }
815
816 /*===========================================================================*/
817 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
818 struct net_device *dev)
819 {
820 ray_dev_t *local = netdev_priv(dev);
821 struct pcmcia_device *link = local->finder;
822 short length = skb->len;
823
824 if (!pcmcia_dev_present(link)) {
825 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n");
826 dev_kfree_skb(skb);
827 return NETDEV_TX_OK;
828 }
829
830 dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
831 if (local->authentication_state == NEED_TO_AUTH) {
832 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n");
833 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
834 local->authentication_state = AUTHENTICATED;
835 netif_stop_queue(dev);
836 return NETDEV_TX_BUSY;
837 }
838 }
839
840 if (length < ETH_ZLEN) {
841 if (skb_padto(skb, ETH_ZLEN))
842 return NETDEV_TX_OK;
843 length = ETH_ZLEN;
844 }
845 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) {
846 case XMIT_NO_CCS:
847 case XMIT_NEED_AUTH:
848 netif_stop_queue(dev);
849 return NETDEV_TX_BUSY;
850 case XMIT_NO_INTR:
851 case XMIT_MSG_BAD:
852 case XMIT_OK:
853 default:
854 dev_kfree_skb(skb);
855 }
856
857 return NETDEV_TX_OK;
858 } /* ray_dev_start_xmit */
859
860 /*===========================================================================*/
861 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
862 UCHAR msg_type)
863 {
864 ray_dev_t *local = netdev_priv(dev);
865 struct ccs __iomem *pccs;
866 int ccsindex;
867 int offset;
868 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */
869 short int addr; /* Address of xmit buffer in card space */
870
871 pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev);
872 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) {
873 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",
874 len);
875 return XMIT_MSG_BAD;
876 }
877 switch (ccsindex = get_free_tx_ccs(local)) {
878 case ECCSBUSY:
879 pr_debug("ray_hw_xmit tx_ccs table busy\n");
880 /* fall through */
881 case ECCSFULL:
882 pr_debug("ray_hw_xmit No free tx ccs\n");
883 /* fall through */
884 case ECARDGONE:
885 netif_stop_queue(dev);
886 return XMIT_NO_CCS;
887 default:
888 break;
889 }
890 addr = TX_BUF_BASE + (ccsindex << 11);
891
892 if (msg_type == DATA_TYPE) {
893 local->stats.tx_bytes += len;
894 local->stats.tx_packets++;
895 }
896
897 ptx = local->sram + addr;
898
899 ray_build_header(local, ptx, msg_type, data);
900 if (translate) {
901 offset = translate_frame(local, ptx, data, len);
902 } else { /* Encapsulate frame */
903 /* TBD TIB length will move address of ptx->var */
904 memcpy_toio(&ptx->var, data, len);
905 offset = 0;
906 }
907
908 /* fill in the CCS */
909 pccs = ccs_base(local) + ccsindex;
910 len += TX_HEADER_LENGTH + offset;
911 writeb(CCS_TX_REQUEST, &pccs->cmd);
912 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
913 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
914 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
915 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
916 /* TBD still need psm_cam? */
917 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
918 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
919 writeb(0, &pccs->var.tx_request.antenna);
920 pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n",
921 local->net_default_tx_rate);
922
923 /* Interrupt the firmware to process the command */
924 if (interrupt_ecf(local, ccsindex)) {
925 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n");
926 /* TBD very inefficient to copy packet to buffer, and then not
927 send it, but the alternative is to queue the messages and that
928 won't be done for a while. Maybe set tbusy until a CCS is free?
929 */
930 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
931 return XMIT_NO_INTR;
932 }
933 return XMIT_OK;
934 } /* end ray_hw_xmit */
935
936 /*===========================================================================*/
937 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
938 unsigned char *data, int len)
939 {
940 __be16 proto = ((struct ethhdr *)data)->h_proto;
941 if (ntohs(proto) >= ETH_P_802_3_MIN) { /* DIX II ethernet frame */
942 pr_debug("ray_cs translate_frame DIX II\n");
943 /* Copy LLC header to card buffer */
944 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
945 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc),
946 (UCHAR *) &proto, 2);
947 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
948 /* This is the selective translation table, only 2 entries */
949 writeb(0xf8,
950 &((struct snaphdr_t __iomem *)ptx->var)->org[2]);
951 }
952 /* Copy body of ethernet packet without ethernet header */
953 memcpy_toio((void __iomem *)&ptx->var +
954 sizeof(struct snaphdr_t), data + ETH_HLEN,
955 len - ETH_HLEN);
956 return (int)sizeof(struct snaphdr_t) - ETH_HLEN;
957 } else { /* already 802 type, and proto is length */
958 pr_debug("ray_cs translate_frame 802\n");
959 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
960 pr_debug("ray_cs translate_frame evil IPX\n");
961 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
962 return 0 - ETH_HLEN;
963 }
964 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
965 return 0 - ETH_HLEN;
966 }
967 /* TBD do other frame types */
968 } /* end translate_frame */
969
970 /*===========================================================================*/
971 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
972 UCHAR msg_type, unsigned char *data)
973 {
974 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
975 /*** IEEE 802.11 Address field assignments *************
976 TODS FROMDS addr_1 addr_2 addr_3 addr_4
977 Adhoc 0 0 dest src (terminal) BSSID N/A
978 AP to Terminal 0 1 dest AP(BSSID) source N/A
979 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A
980 AP to AP 1 1 dest AP src AP dest source
981 *******************************************************/
982 if (local->net_type == ADHOC) {
983 writeb(0, &ptx->mac.frame_ctl_2);
984 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest,
985 2 * ADDRLEN);
986 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
987 } else { /* infrastructure */
988
989 if (local->sparm.b4.a_acting_as_ap_status) {
990 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
991 memcpy_toio(ptx->mac.addr_1,
992 ((struct ethhdr *)data)->h_dest, ADDRLEN);
993 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
994 memcpy_toio(ptx->mac.addr_3,
995 ((struct ethhdr *)data)->h_source, ADDRLEN);
996 } else { /* Terminal */
997
998 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
999 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1000 memcpy_toio(ptx->mac.addr_2,
1001 ((struct ethhdr *)data)->h_source, ADDRLEN);
1002 memcpy_toio(ptx->mac.addr_3,
1003 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1004 }
1005 }
1006 } /* end encapsulate_frame */
1007
1008 /*====================================================================*/
1009
1010 /*------------------------------------------------------------------*/
1011 /*
1012 * Wireless Handler : get protocol name
1013 */
1014 static int ray_get_name(struct net_device *dev, struct iw_request_info *info,
1015 union iwreq_data *wrqu, char *extra)
1016 {
1017 strcpy(wrqu->name, "IEEE 802.11-FH");
1018 return 0;
1019 }
1020
1021 /*------------------------------------------------------------------*/
1022 /*
1023 * Wireless Handler : set frequency
1024 */
1025 static int ray_set_freq(struct net_device *dev, struct iw_request_info *info,
1026 union iwreq_data *wrqu, char *extra)
1027 {
1028 ray_dev_t *local = netdev_priv(dev);
1029 int err = -EINPROGRESS; /* Call commit handler */
1030
1031 /* Reject if card is already initialised */
1032 if (local->card_status != CARD_AWAITING_PARAM)
1033 return -EBUSY;
1034
1035 /* Setting by channel number */
1036 if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0))
1037 err = -EOPNOTSUPP;
1038 else
1039 local->sparm.b5.a_hop_pattern = wrqu->freq.m;
1040
1041 return err;
1042 }
1043
1044 /*------------------------------------------------------------------*/
1045 /*
1046 * Wireless Handler : get frequency
1047 */
1048 static int ray_get_freq(struct net_device *dev, struct iw_request_info *info,
1049 union iwreq_data *wrqu, char *extra)
1050 {
1051 ray_dev_t *local = netdev_priv(dev);
1052
1053 wrqu->freq.m = local->sparm.b5.a_hop_pattern;
1054 wrqu->freq.e = 0;
1055 return 0;
1056 }
1057
1058 /*------------------------------------------------------------------*/
1059 /*
1060 * Wireless Handler : set ESSID
1061 */
1062 static int ray_set_essid(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 /* Reject if card is already initialised */
1068 if (local->card_status != CARD_AWAITING_PARAM)
1069 return -EBUSY;
1070
1071 /* Check if we asked for `any' */
1072 if (wrqu->essid.flags == 0)
1073 /* Corey : can you do that ? */
1074 return -EOPNOTSUPP;
1075
1076 /* Check the size of the string */
1077 if (wrqu->essid.length > IW_ESSID_MAX_SIZE)
1078 return -E2BIG;
1079
1080 /* Set the ESSID in the card */
1081 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1082 memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length);
1083
1084 return -EINPROGRESS; /* Call commit handler */
1085 }
1086
1087 /*------------------------------------------------------------------*/
1088 /*
1089 * Wireless Handler : get ESSID
1090 */
1091 static int ray_get_essid(struct net_device *dev, struct iw_request_info *info,
1092 union iwreq_data *wrqu, char *extra)
1093 {
1094 ray_dev_t *local = netdev_priv(dev);
1095 UCHAR tmp[IW_ESSID_MAX_SIZE + 1];
1096
1097 /* Get the essid that was set */
1098 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1099 memcpy(tmp, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1100 tmp[IW_ESSID_MAX_SIZE] = '\0';
1101
1102 /* Push it out ! */
1103 wrqu->essid.length = strlen(tmp);
1104 wrqu->essid.flags = 1; /* active */
1105
1106 return 0;
1107 }
1108
1109 /*------------------------------------------------------------------*/
1110 /*
1111 * Wireless Handler : get AP address
1112 */
1113 static int ray_get_wap(struct net_device *dev, struct iw_request_info *info,
1114 union iwreq_data *wrqu, char *extra)
1115 {
1116 ray_dev_t *local = netdev_priv(dev);
1117
1118 memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN);
1119 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1120
1121 return 0;
1122 }
1123
1124 /*------------------------------------------------------------------*/
1125 /*
1126 * Wireless Handler : set Bit-Rate
1127 */
1128 static int ray_set_rate(struct net_device *dev, struct iw_request_info *info,
1129 union iwreq_data *wrqu, char *extra)
1130 {
1131 ray_dev_t *local = netdev_priv(dev);
1132
1133 /* Reject if card is already initialised */
1134 if (local->card_status != CARD_AWAITING_PARAM)
1135 return -EBUSY;
1136
1137 /* Check if rate is in range */
1138 if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000))
1139 return -EINVAL;
1140
1141 /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1142 if ((local->fw_ver == 0x55) && /* Please check */
1143 (wrqu->bitrate.value == 2000000))
1144 local->net_default_tx_rate = 3;
1145 else
1146 local->net_default_tx_rate = wrqu->bitrate.value / 500000;
1147
1148 return 0;
1149 }
1150
1151 /*------------------------------------------------------------------*/
1152 /*
1153 * Wireless Handler : get Bit-Rate
1154 */
1155 static int ray_get_rate(struct net_device *dev, struct iw_request_info *info,
1156 union iwreq_data *wrqu, char *extra)
1157 {
1158 ray_dev_t *local = netdev_priv(dev);
1159
1160 if (local->net_default_tx_rate == 3)
1161 wrqu->bitrate.value = 2000000; /* Hum... */
1162 else
1163 wrqu->bitrate.value = local->net_default_tx_rate * 500000;
1164 wrqu->bitrate.fixed = 0; /* We are in auto mode */
1165
1166 return 0;
1167 }
1168
1169 /*------------------------------------------------------------------*/
1170 /*
1171 * Wireless Handler : set RTS threshold
1172 */
1173 static int ray_set_rts(struct net_device *dev, struct iw_request_info *info,
1174 union iwreq_data *wrqu, char *extra)
1175 {
1176 ray_dev_t *local = netdev_priv(dev);
1177 int rthr = wrqu->rts.value;
1178
1179 /* Reject if card is already initialised */
1180 if (local->card_status != CARD_AWAITING_PARAM)
1181 return -EBUSY;
1182
1183 /* if(wrq->u.rts.fixed == 0) we should complain */
1184 if (wrqu->rts.disabled)
1185 rthr = 32767;
1186 else {
1187 if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */
1188 return -EINVAL;
1189 }
1190 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1191 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1192
1193 return -EINPROGRESS; /* Call commit handler */
1194 }
1195
1196 /*------------------------------------------------------------------*/
1197 /*
1198 * Wireless Handler : get RTS threshold
1199 */
1200 static int ray_get_rts(struct net_device *dev, struct iw_request_info *info,
1201 union iwreq_data *wrqu, char *extra)
1202 {
1203 ray_dev_t *local = netdev_priv(dev);
1204
1205 wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8)
1206 + local->sparm.b5.a_rts_threshold[1];
1207 wrqu->rts.disabled = (wrqu->rts.value == 32767);
1208 wrqu->rts.fixed = 1;
1209
1210 return 0;
1211 }
1212
1213 /*------------------------------------------------------------------*/
1214 /*
1215 * Wireless Handler : set Fragmentation threshold
1216 */
1217 static int ray_set_frag(struct net_device *dev, struct iw_request_info *info,
1218 union iwreq_data *wrqu, char *extra)
1219 {
1220 ray_dev_t *local = netdev_priv(dev);
1221 int fthr = wrqu->frag.value;
1222
1223 /* Reject if card is already initialised */
1224 if (local->card_status != CARD_AWAITING_PARAM)
1225 return -EBUSY;
1226
1227 /* if(wrq->u.frag.fixed == 0) should complain */
1228 if (wrqu->frag.disabled)
1229 fthr = 32767;
1230 else {
1231 if ((fthr < 256) || (fthr > 2347)) /* To check out ! */
1232 return -EINVAL;
1233 }
1234 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1235 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1236
1237 return -EINPROGRESS; /* Call commit handler */
1238 }
1239
1240 /*------------------------------------------------------------------*/
1241 /*
1242 * Wireless Handler : get Fragmentation threshold
1243 */
1244 static int ray_get_frag(struct net_device *dev, struct iw_request_info *info,
1245 union iwreq_data *wrqu, char *extra)
1246 {
1247 ray_dev_t *local = netdev_priv(dev);
1248
1249 wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8)
1250 + local->sparm.b5.a_frag_threshold[1];
1251 wrqu->frag.disabled = (wrqu->frag.value == 32767);
1252 wrqu->frag.fixed = 1;
1253
1254 return 0;
1255 }
1256
1257 /*------------------------------------------------------------------*/
1258 /*
1259 * Wireless Handler : set Mode of Operation
1260 */
1261 static int ray_set_mode(struct net_device *dev, struct iw_request_info *info,
1262 union iwreq_data *wrqu, char *extra)
1263 {
1264 ray_dev_t *local = netdev_priv(dev);
1265 int err = -EINPROGRESS; /* Call commit handler */
1266 char card_mode = 1;
1267
1268 /* Reject if card is already initialised */
1269 if (local->card_status != CARD_AWAITING_PARAM)
1270 return -EBUSY;
1271
1272 switch (wrqu->mode) {
1273 case IW_MODE_ADHOC:
1274 card_mode = 0;
1275 /* Fall through */
1276 case IW_MODE_INFRA:
1277 local->sparm.b5.a_network_type = card_mode;
1278 break;
1279 default:
1280 err = -EINVAL;
1281 }
1282
1283 return err;
1284 }
1285
1286 /*------------------------------------------------------------------*/
1287 /*
1288 * Wireless Handler : get Mode of Operation
1289 */
1290 static int ray_get_mode(struct net_device *dev, struct iw_request_info *info,
1291 union iwreq_data *wrqu, char *extra)
1292 {
1293 ray_dev_t *local = netdev_priv(dev);
1294
1295 if (local->sparm.b5.a_network_type)
1296 wrqu->mode = IW_MODE_INFRA;
1297 else
1298 wrqu->mode = IW_MODE_ADHOC;
1299
1300 return 0;
1301 }
1302
1303 /*------------------------------------------------------------------*/
1304 /*
1305 * Wireless Handler : get range info
1306 */
1307 static int ray_get_range(struct net_device *dev, struct iw_request_info *info,
1308 union iwreq_data *wrqu, char *extra)
1309 {
1310 struct iw_range *range = (struct iw_range *)extra;
1311
1312 memset(range, 0, sizeof(struct iw_range));
1313
1314 /* Set the length (very important for backward compatibility) */
1315 wrqu->data.length = sizeof(struct iw_range);
1316
1317 /* Set the Wireless Extension versions */
1318 range->we_version_compiled = WIRELESS_EXT;
1319 range->we_version_source = 9;
1320
1321 /* Set information in the range struct */
1322 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */
1323 range->num_channels = hop_pattern_length[(int)country];
1324 range->num_frequency = 0;
1325 range->max_qual.qual = 0;
1326 range->max_qual.level = 255; /* What's the correct value ? */
1327 range->max_qual.noise = 255; /* Idem */
1328 range->num_bitrates = 2;
1329 range->bitrate[0] = 1000000; /* 1 Mb/s */
1330 range->bitrate[1] = 2000000; /* 2 Mb/s */
1331 return 0;
1332 }
1333
1334 /*------------------------------------------------------------------*/
1335 /*
1336 * Wireless Private Handler : set framing mode
1337 */
1338 static int ray_set_framing(struct net_device *dev, struct iw_request_info *info,
1339 union iwreq_data *wrqu, char *extra)
1340 {
1341 translate = !!*(extra); /* Set framing mode */
1342
1343 return 0;
1344 }
1345
1346 /*------------------------------------------------------------------*/
1347 /*
1348 * Wireless Private Handler : get framing mode
1349 */
1350 static int ray_get_framing(struct net_device *dev, struct iw_request_info *info,
1351 union iwreq_data *wrqu, char *extra)
1352 {
1353 *(extra) = translate;
1354
1355 return 0;
1356 }
1357
1358 /*------------------------------------------------------------------*/
1359 /*
1360 * Wireless Private Handler : get country
1361 */
1362 static int ray_get_country(struct net_device *dev, struct iw_request_info *info,
1363 union iwreq_data *wrqu, char *extra)
1364 {
1365 *(extra) = country;
1366
1367 return 0;
1368 }
1369
1370 /*------------------------------------------------------------------*/
1371 /*
1372 * Commit handler : called after a bunch of SET operations
1373 */
1374 static int ray_commit(struct net_device *dev, struct iw_request_info *info,
1375 union iwreq_data *wrqu, char *extra)
1376 {
1377 return 0;
1378 }
1379
1380 /*------------------------------------------------------------------*/
1381 /*
1382 * Stats handler : return Wireless Stats
1383 */
1384 static iw_stats *ray_get_wireless_stats(struct net_device *dev)
1385 {
1386 ray_dev_t *local = netdev_priv(dev);
1387 struct pcmcia_device *link = local->finder;
1388 struct status __iomem *p = local->sram + STATUS_BASE;
1389
1390 local->wstats.status = local->card_status;
1391 #ifdef WIRELESS_SPY
1392 if ((local->spy_data.spy_number > 0)
1393 && (local->sparm.b5.a_network_type == 0)) {
1394 /* Get it from the first node in spy list */
1395 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1396 local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1397 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1398 local->wstats.qual.updated =
1399 local->spy_data.spy_stat[0].updated;
1400 }
1401 #endif /* WIRELESS_SPY */
1402
1403 if (pcmcia_dev_present(link)) {
1404 local->wstats.qual.noise = readb(&p->rxnoise);
1405 local->wstats.qual.updated |= 4;
1406 }
1407
1408 return &local->wstats;
1409 } /* end ray_get_wireless_stats */
1410
1411 /*------------------------------------------------------------------*/
1412 /*
1413 * Structures to export the Wireless Handlers
1414 */
1415
1416 static const iw_handler ray_handler[] = {
1417 IW_HANDLER(SIOCSIWCOMMIT, ray_commit),
1418 IW_HANDLER(SIOCGIWNAME, ray_get_name),
1419 IW_HANDLER(SIOCSIWFREQ, ray_set_freq),
1420 IW_HANDLER(SIOCGIWFREQ, ray_get_freq),
1421 IW_HANDLER(SIOCSIWMODE, ray_set_mode),
1422 IW_HANDLER(SIOCGIWMODE, ray_get_mode),
1423 IW_HANDLER(SIOCGIWRANGE, ray_get_range),
1424 #ifdef WIRELESS_SPY
1425 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1426 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1427 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1428 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1429 #endif /* WIRELESS_SPY */
1430 IW_HANDLER(SIOCGIWAP, ray_get_wap),
1431 IW_HANDLER(SIOCSIWESSID, ray_set_essid),
1432 IW_HANDLER(SIOCGIWESSID, ray_get_essid),
1433 IW_HANDLER(SIOCSIWRATE, ray_set_rate),
1434 IW_HANDLER(SIOCGIWRATE, ray_get_rate),
1435 IW_HANDLER(SIOCSIWRTS, ray_set_rts),
1436 IW_HANDLER(SIOCGIWRTS, ray_get_rts),
1437 IW_HANDLER(SIOCSIWFRAG, ray_set_frag),
1438 IW_HANDLER(SIOCGIWFRAG, ray_get_frag),
1439 };
1440
1441 #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */
1442 #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */
1443 #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */
1444
1445 static const iw_handler ray_private_handler[] = {
1446 [0] = ray_set_framing,
1447 [1] = ray_get_framing,
1448 [3] = ray_get_country,
1449 };
1450
1451 static const struct iw_priv_args ray_private_args[] = {
1452 /* cmd, set_args, get_args, name */
1453 {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0,
1454 "set_framing"},
1455 {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1456 "get_framing"},
1457 {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1458 "get_country"},
1459 };
1460
1461 static const struct iw_handler_def ray_handler_def = {
1462 .num_standard = ARRAY_SIZE(ray_handler),
1463 .num_private = ARRAY_SIZE(ray_private_handler),
1464 .num_private_args = ARRAY_SIZE(ray_private_args),
1465 .standard = ray_handler,
1466 .private = ray_private_handler,
1467 .private_args = ray_private_args,
1468 .get_wireless_stats = ray_get_wireless_stats,
1469 };
1470
1471 /*===========================================================================*/
1472 static int ray_open(struct net_device *dev)
1473 {
1474 ray_dev_t *local = netdev_priv(dev);
1475 struct pcmcia_device *link;
1476 link = local->finder;
1477
1478 dev_dbg(&link->dev, "ray_open('%s')\n", dev->name);
1479
1480 if (link->open == 0)
1481 local->num_multi = 0;
1482 link->open++;
1483
1484 /* If the card is not started, time to start it ! - Jean II */
1485 if (local->card_status == CARD_AWAITING_PARAM) {
1486 int i;
1487
1488 dev_dbg(&link->dev, "ray_open: doing init now !\n");
1489
1490 /* Download startup parameters */
1491 if ((i = dl_startup_params(dev)) < 0) {
1492 printk(KERN_INFO
1493 "ray_dev_init dl_startup_params failed - "
1494 "returns 0x%x\n", i);
1495 return -1;
1496 }
1497 }
1498
1499 if (sniffer)
1500 netif_stop_queue(dev);
1501 else
1502 netif_start_queue(dev);
1503
1504 dev_dbg(&link->dev, "ray_open ending\n");
1505 return 0;
1506 } /* end ray_open */
1507
1508 /*===========================================================================*/
1509 static int ray_dev_close(struct net_device *dev)
1510 {
1511 ray_dev_t *local = netdev_priv(dev);
1512 struct pcmcia_device *link;
1513 link = local->finder;
1514
1515 dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name);
1516
1517 link->open--;
1518 netif_stop_queue(dev);
1519
1520 /* In here, we should stop the hardware (stop card from beeing active)
1521 * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1522 * card is closed we can chage its configuration.
1523 * Probably also need a COR reset to get sane state - Jean II */
1524
1525 return 0;
1526 } /* end ray_dev_close */
1527
1528 /*===========================================================================*/
1529 static void ray_reset(struct net_device *dev)
1530 {
1531 pr_debug("ray_reset entered\n");
1532 }
1533
1534 /*===========================================================================*/
1535 /* Cause a firmware interrupt if it is ready for one */
1536 /* Return nonzero if not ready */
1537 static int interrupt_ecf(ray_dev_t *local, int ccs)
1538 {
1539 int i = 50;
1540 struct pcmcia_device *link = local->finder;
1541
1542 if (!(pcmcia_dev_present(link))) {
1543 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n");
1544 return -1;
1545 }
1546 dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs);
1547
1548 while (i &&
1549 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) &
1550 ECF_INTR_SET))
1551 i--;
1552 if (i == 0) {
1553 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n");
1554 return -1;
1555 }
1556 /* Fill the mailbox, then kick the card */
1557 writeb(ccs, local->sram + SCB_BASE);
1558 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1559 return 0;
1560 } /* interrupt_ecf */
1561
1562 /*===========================================================================*/
1563 /* Get next free transmit CCS */
1564 /* Return - index of current tx ccs */
1565 static int get_free_tx_ccs(ray_dev_t *local)
1566 {
1567 int i;
1568 struct ccs __iomem *pccs = ccs_base(local);
1569 struct pcmcia_device *link = local->finder;
1570
1571 if (!(pcmcia_dev_present(link))) {
1572 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n");
1573 return ECARDGONE;
1574 }
1575
1576 if (test_and_set_bit(0, &local->tx_ccs_lock)) {
1577 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n");
1578 return ECCSBUSY;
1579 }
1580
1581 for (i = 0; i < NUMBER_OF_TX_CCS; i++) {
1582 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1583 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1584 writeb(CCS_END_LIST, &(pccs + i)->link);
1585 local->tx_ccs_lock = 0;
1586 return i;
1587 }
1588 }
1589 local->tx_ccs_lock = 0;
1590 dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n");
1591 return ECCSFULL;
1592 } /* get_free_tx_ccs */
1593
1594 /*===========================================================================*/
1595 /* Get next free CCS */
1596 /* Return - index of current ccs */
1597 static int get_free_ccs(ray_dev_t *local)
1598 {
1599 int i;
1600 struct ccs __iomem *pccs = ccs_base(local);
1601 struct pcmcia_device *link = local->finder;
1602
1603 if (!(pcmcia_dev_present(link))) {
1604 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n");
1605 return ECARDGONE;
1606 }
1607 if (test_and_set_bit(0, &local->ccs_lock)) {
1608 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n");
1609 return ECCSBUSY;
1610 }
1611
1612 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1613 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1614 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1615 writeb(CCS_END_LIST, &(pccs + i)->link);
1616 local->ccs_lock = 0;
1617 return i;
1618 }
1619 }
1620 local->ccs_lock = 0;
1621 dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n");
1622 return ECCSFULL;
1623 } /* get_free_ccs */
1624
1625 /*===========================================================================*/
1626 static void authenticate_timeout(struct timer_list *t)
1627 {
1628 ray_dev_t *local = from_timer(local, t, timer);
1629 del_timer(&local->timer);
1630 printk(KERN_INFO "ray_cs Authentication with access point failed"
1631 " - timeout\n");
1632 join_net(&local->timer);
1633 }
1634
1635 /*===========================================================================*/
1636 static int parse_addr(char *in_str, UCHAR *out)
1637 {
1638 int len;
1639 int i, j, k;
1640 int status;
1641
1642 if (in_str == NULL)
1643 return 0;
1644 if ((len = strlen(in_str)) < 2)
1645 return 0;
1646 memset(out, 0, ADDRLEN);
1647
1648 status = 1;
1649 j = len - 1;
1650 if (j > 12)
1651 j = 12;
1652 i = 5;
1653
1654 while (j > 0) {
1655 if ((k = hex_to_bin(in_str[j--])) != -1)
1656 out[i] = k;
1657 else
1658 return 0;
1659
1660 if (j == 0)
1661 break;
1662 if ((k = hex_to_bin(in_str[j--])) != -1)
1663 out[i] += k << 4;
1664 else
1665 return 0;
1666 if (!i--)
1667 break;
1668 }
1669 return status;
1670 }
1671
1672 /*===========================================================================*/
1673 static struct net_device_stats *ray_get_stats(struct net_device *dev)
1674 {
1675 ray_dev_t *local = netdev_priv(dev);
1676 struct pcmcia_device *link = local->finder;
1677 struct status __iomem *p = local->sram + STATUS_BASE;
1678 if (!(pcmcia_dev_present(link))) {
1679 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n");
1680 return &local->stats;
1681 }
1682 if (readb(&p->mrx_overflow_for_host)) {
1683 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1684 writeb(0, &p->mrx_overflow);
1685 writeb(0, &p->mrx_overflow_for_host);
1686 }
1687 if (readb(&p->mrx_checksum_error_for_host)) {
1688 local->stats.rx_crc_errors +=
1689 swab16(readw(&p->mrx_checksum_error));
1690 writeb(0, &p->mrx_checksum_error);
1691 writeb(0, &p->mrx_checksum_error_for_host);
1692 }
1693 if (readb(&p->rx_hec_error_for_host)) {
1694 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1695 writeb(0, &p->rx_hec_error);
1696 writeb(0, &p->rx_hec_error_for_host);
1697 }
1698 return &local->stats;
1699 }
1700
1701 /*===========================================================================*/
1702 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value,
1703 int len)
1704 {
1705 ray_dev_t *local = netdev_priv(dev);
1706 struct pcmcia_device *link = local->finder;
1707 int ccsindex;
1708 int i;
1709 struct ccs __iomem *pccs;
1710
1711 if (!(pcmcia_dev_present(link))) {
1712 dev_dbg(&link->dev, "ray_update_parm - device not present\n");
1713 return;
1714 }
1715
1716 if ((ccsindex = get_free_ccs(local)) < 0) {
1717 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n");
1718 return;
1719 }
1720 pccs = ccs_base(local) + ccsindex;
1721 writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1722 writeb(objid, &pccs->var.update_param.object_id);
1723 writeb(1, &pccs->var.update_param.number_objects);
1724 writeb(0, &pccs->var.update_param.failure_cause);
1725 for (i = 0; i < len; i++) {
1726 writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1727 }
1728 /* Interrupt the firmware to process the command */
1729 if (interrupt_ecf(local, ccsindex)) {
1730 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
1731 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1732 }
1733 }
1734
1735 /*===========================================================================*/
1736 static void ray_update_multi_list(struct net_device *dev, int all)
1737 {
1738 int ccsindex;
1739 struct ccs __iomem *pccs;
1740 ray_dev_t *local = netdev_priv(dev);
1741 struct pcmcia_device *link = local->finder;
1742 void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1743
1744 if (!(pcmcia_dev_present(link))) {
1745 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n");
1746 return;
1747 } else
1748 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev);
1749 if ((ccsindex = get_free_ccs(local)) < 0) {
1750 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n");
1751 return;
1752 }
1753 pccs = ccs_base(local) + ccsindex;
1754 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1755
1756 if (all) {
1757 writeb(0xff, &pccs->var);
1758 local->num_multi = 0xff;
1759 } else {
1760 struct netdev_hw_addr *ha;
1761 int i = 0;
1762
1763 /* Copy the kernel's list of MC addresses to card */
1764 netdev_for_each_mc_addr(ha, dev) {
1765 memcpy_toio(p, ha->addr, ETH_ALEN);
1766 dev_dbg(&link->dev, "ray_update_multi add addr %pm\n",
1767 ha->addr);
1768 p += ETH_ALEN;
1769 i++;
1770 }
1771 if (i > 256 / ADDRLEN)
1772 i = 256 / ADDRLEN;
1773 writeb((UCHAR) i, &pccs->var);
1774 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i);
1775 /* Interrupt the firmware to process the command */
1776 local->num_multi = i;
1777 }
1778 if (interrupt_ecf(local, ccsindex)) {
1779 dev_dbg(&link->dev,
1780 "ray_cs update_multi failed - ECF not ready for intr\n");
1781 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1782 }
1783 } /* end ray_update_multi_list */
1784
1785 /*===========================================================================*/
1786 static void set_multicast_list(struct net_device *dev)
1787 {
1788 ray_dev_t *local = netdev_priv(dev);
1789 UCHAR promisc;
1790
1791 pr_debug("ray_cs set_multicast_list(%p)\n", dev);
1792
1793 if (dev->flags & IFF_PROMISC) {
1794 if (local->sparm.b5.a_promiscuous_mode == 0) {
1795 pr_debug("ray_cs set_multicast_list promisc on\n");
1796 local->sparm.b5.a_promiscuous_mode = 1;
1797 promisc = 1;
1798 ray_update_parm(dev, OBJID_promiscuous_mode,
1799 &promisc, sizeof(promisc));
1800 }
1801 } else {
1802 if (local->sparm.b5.a_promiscuous_mode == 1) {
1803 pr_debug("ray_cs set_multicast_list promisc off\n");
1804 local->sparm.b5.a_promiscuous_mode = 0;
1805 promisc = 0;
1806 ray_update_parm(dev, OBJID_promiscuous_mode,
1807 &promisc, sizeof(promisc));
1808 }
1809 }
1810
1811 if (dev->flags & IFF_ALLMULTI)
1812 ray_update_multi_list(dev, 1);
1813 else {
1814 if (local->num_multi != netdev_mc_count(dev))
1815 ray_update_multi_list(dev, 0);
1816 }
1817 } /* end set_multicast_list */
1818
1819 /*=============================================================================
1820 * All routines below here are run at interrupt time.
1821 =============================================================================*/
1822 static irqreturn_t ray_interrupt(int irq, void *dev_id)
1823 {
1824 struct net_device *dev = (struct net_device *)dev_id;
1825 struct pcmcia_device *link;
1826 ray_dev_t *local;
1827 struct ccs __iomem *pccs;
1828 struct rcs __iomem *prcs;
1829 UCHAR rcsindex;
1830 UCHAR tmp;
1831 UCHAR cmd;
1832 UCHAR status;
1833 UCHAR memtmp[ESSID_SIZE + 1];
1834
1835
1836 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */
1837 return IRQ_NONE;
1838
1839 pr_debug("ray_cs: interrupt for *dev=%p\n", dev);
1840
1841 local = netdev_priv(dev);
1842 link = local->finder;
1843 if (!pcmcia_dev_present(link)) {
1844 pr_debug(
1845 "ray_cs interrupt from device not present or suspended.\n");
1846 return IRQ_NONE;
1847 }
1848 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1849
1850 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
1851 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex);
1852 clear_interrupt(local);
1853 return IRQ_HANDLED;
1854 }
1855 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */
1856 pccs = ccs_base(local) + rcsindex;
1857 cmd = readb(&pccs->cmd);
1858 status = readb(&pccs->buffer_status);
1859 switch (cmd) {
1860 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */
1861 del_timer(&local->timer);
1862 if (status == CCS_COMMAND_COMPLETE) {
1863 dev_dbg(&link->dev,
1864 "ray_cs interrupt download_startup_parameters OK\n");
1865 } else {
1866 dev_dbg(&link->dev,
1867 "ray_cs interrupt download_startup_parameters fail\n");
1868 }
1869 break;
1870 case CCS_UPDATE_PARAMS:
1871 dev_dbg(&link->dev, "ray_cs interrupt update params done\n");
1872 if (status != CCS_COMMAND_COMPLETE) {
1873 tmp =
1874 readb(&pccs->var.update_param.
1875 failure_cause);
1876 dev_dbg(&link->dev,
1877 "ray_cs interrupt update params failed - reason %d\n",
1878 tmp);
1879 }
1880 break;
1881 case CCS_REPORT_PARAMS:
1882 dev_dbg(&link->dev, "ray_cs interrupt report params done\n");
1883 break;
1884 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
1885 dev_dbg(&link->dev,
1886 "ray_cs interrupt CCS Update Multicast List done\n");
1887 break;
1888 case CCS_UPDATE_POWER_SAVINGS_MODE:
1889 dev_dbg(&link->dev,
1890 "ray_cs interrupt update power save mode done\n");
1891 break;
1892 case CCS_START_NETWORK:
1893 case CCS_JOIN_NETWORK:
1894 memcpy(memtmp, local->sparm.b4.a_current_ess_id,
1895 ESSID_SIZE);
1896 memtmp[ESSID_SIZE] = '\0';
1897
1898 if (status == CCS_COMMAND_COMPLETE) {
1899 if (readb
1900 (&pccs->var.start_network.net_initiated) ==
1901 1) {
1902 dev_dbg(&link->dev,
1903 "ray_cs interrupt network \"%s\" started\n",
1904 memtmp);
1905 } else {
1906 dev_dbg(&link->dev,
1907 "ray_cs interrupt network \"%s\" joined\n",
1908 memtmp);
1909 }
1910 memcpy_fromio(&local->bss_id,
1911 pccs->var.start_network.bssid,
1912 ADDRLEN);
1913
1914 if (local->fw_ver == 0x55)
1915 local->net_default_tx_rate = 3;
1916 else
1917 local->net_default_tx_rate =
1918 readb(&pccs->var.start_network.
1919 net_default_tx_rate);
1920 local->encryption =
1921 readb(&pccs->var.start_network.encryption);
1922 if (!sniffer && (local->net_type == INFRA)
1923 && !(local->sparm.b4.a_acting_as_ap_status)) {
1924 authenticate(local);
1925 }
1926 local->card_status = CARD_ACQ_COMPLETE;
1927 } else {
1928 local->card_status = CARD_ACQ_FAILED;
1929
1930 del_timer(&local->timer);
1931 local->timer.expires = jiffies + HZ * 5;
1932 if (status == CCS_START_NETWORK) {
1933 dev_dbg(&link->dev,
1934 "ray_cs interrupt network \"%s\" start failed\n",
1935 memtmp);
1936 local->timer.function = start_net;
1937 } else {
1938 dev_dbg(&link->dev,
1939 "ray_cs interrupt network \"%s\" join failed\n",
1940 memtmp);
1941 local->timer.function = join_net;
1942 }
1943 add_timer(&local->timer);
1944 }
1945 break;
1946 case CCS_START_ASSOCIATION:
1947 if (status == CCS_COMMAND_COMPLETE) {
1948 local->card_status = CARD_ASSOC_COMPLETE;
1949 dev_dbg(&link->dev, "ray_cs association successful\n");
1950 } else {
1951 dev_dbg(&link->dev, "ray_cs association failed,\n");
1952 local->card_status = CARD_ASSOC_FAILED;
1953 join_net(&local->timer);
1954 }
1955 break;
1956 case CCS_TX_REQUEST:
1957 if (status == CCS_COMMAND_COMPLETE) {
1958 dev_dbg(&link->dev,
1959 "ray_cs interrupt tx request complete\n");
1960 } else {
1961 dev_dbg(&link->dev,
1962 "ray_cs interrupt tx request failed\n");
1963 }
1964 if (!sniffer)
1965 netif_start_queue(dev);
1966 netif_wake_queue(dev);
1967 break;
1968 case CCS_TEST_MEMORY:
1969 dev_dbg(&link->dev, "ray_cs interrupt mem test done\n");
1970 break;
1971 case CCS_SHUTDOWN:
1972 dev_dbg(&link->dev,
1973 "ray_cs interrupt Unexpected CCS returned - Shutdown\n");
1974 break;
1975 case CCS_DUMP_MEMORY:
1976 dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n");
1977 break;
1978 case CCS_START_TIMER:
1979 dev_dbg(&link->dev,
1980 "ray_cs interrupt DING - raylink timer expired\n");
1981 break;
1982 default:
1983 dev_dbg(&link->dev,
1984 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",
1985 rcsindex, cmd);
1986 }
1987 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
1988 } else { /* It's an RCS */
1989
1990 prcs = rcs_base(local) + rcsindex;
1991
1992 switch (readb(&prcs->interrupt_id)) {
1993 case PROCESS_RX_PACKET:
1994 ray_rx(dev, local, prcs);
1995 break;
1996 case REJOIN_NET_COMPLETE:
1997 dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n");
1998 local->card_status = CARD_ACQ_COMPLETE;
1999 /* do we need to clear tx buffers CCS's? */
2000 if (local->sparm.b4.a_network_type == ADHOC) {
2001 if (!sniffer)
2002 netif_start_queue(dev);
2003 } else {
2004 memcpy_fromio(&local->bss_id,
2005 prcs->var.rejoin_net_complete.
2006 bssid, ADDRLEN);
2007 dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n",
2008 local->bss_id);
2009 if (!sniffer)
2010 authenticate(local);
2011 }
2012 break;
2013 case ROAMING_INITIATED:
2014 dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n");
2015 netif_stop_queue(dev);
2016 local->card_status = CARD_DOING_ACQ;
2017 break;
2018 case JAPAN_CALL_SIGN_RXD:
2019 dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n");
2020 break;
2021 default:
2022 dev_dbg(&link->dev,
2023 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",
2024 rcsindex,
2025 (unsigned int)readb(&prcs->interrupt_id));
2026 break;
2027 }
2028 writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2029 }
2030 clear_interrupt(local);
2031 return IRQ_HANDLED;
2032 } /* ray_interrupt */
2033
2034 /*===========================================================================*/
2035 static void ray_rx(struct net_device *dev, ray_dev_t *local,
2036 struct rcs __iomem *prcs)
2037 {
2038 int rx_len;
2039 unsigned int pkt_addr;
2040 void __iomem *pmsg;
2041 pr_debug("ray_rx process rx packet\n");
2042
2043 /* Calculate address of packet within Rx buffer */
2044 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2045 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2046 /* Length of first packet fragment */
2047 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2048 + readb(&prcs->var.rx_packet.rx_data_length[1]);
2049
2050 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2051 pmsg = local->rmem + pkt_addr;
2052 switch (readb(pmsg)) {
2053 case DATA_TYPE:
2054 pr_debug("ray_rx data type\n");
2055 rx_data(dev, prcs, pkt_addr, rx_len);
2056 break;
2057 case AUTHENTIC_TYPE:
2058 pr_debug("ray_rx authentic type\n");
2059 if (sniffer)
2060 rx_data(dev, prcs, pkt_addr, rx_len);
2061 else
2062 rx_authenticate(local, prcs, pkt_addr, rx_len);
2063 break;
2064 case DEAUTHENTIC_TYPE:
2065 pr_debug("ray_rx deauth type\n");
2066 if (sniffer)
2067 rx_data(dev, prcs, pkt_addr, rx_len);
2068 else
2069 rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2070 break;
2071 case NULL_MSG_TYPE:
2072 pr_debug("ray_cs rx NULL msg\n");
2073 break;
2074 case BEACON_TYPE:
2075 pr_debug("ray_rx beacon type\n");
2076 if (sniffer)
2077 rx_data(dev, prcs, pkt_addr, rx_len);
2078
2079 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr,
2080 rx_len < sizeof(struct beacon_rx) ?
2081 rx_len : sizeof(struct beacon_rx));
2082
2083 local->beacon_rxed = 1;
2084 /* Get the statistics so the card counters never overflow */
2085 ray_get_stats(dev);
2086 break;
2087 default:
2088 pr_debug("ray_cs unknown pkt type %2x\n",
2089 (unsigned int)readb(pmsg));
2090 break;
2091 }
2092
2093 } /* end ray_rx */
2094
2095 /*===========================================================================*/
2096 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
2097 unsigned int pkt_addr, int rx_len)
2098 {
2099 struct sk_buff *skb = NULL;
2100 struct rcs __iomem *prcslink = prcs;
2101 ray_dev_t *local = netdev_priv(dev);
2102 UCHAR *rx_ptr;
2103 int total_len;
2104 int tmp;
2105 #ifdef WIRELESS_SPY
2106 int siglev = local->last_rsl;
2107 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */
2108 #endif
2109
2110 if (!sniffer) {
2111 if (translate) {
2112 /* TBD length needs fixing for translated header */
2113 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2114 rx_len >
2115 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2116 FCS_LEN)) {
2117 pr_debug(
2118 "ray_cs invalid packet length %d received\n",
2119 rx_len);
2120 return;
2121 }
2122 } else { /* encapsulated ethernet */
2123
2124 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2125 rx_len >
2126 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2127 FCS_LEN)) {
2128 pr_debug(
2129 "ray_cs invalid packet length %d received\n",
2130 rx_len);
2131 return;
2132 }
2133 }
2134 }
2135 pr_debug("ray_cs rx_data packet\n");
2136 /* If fragmented packet, verify sizes of fragments add up */
2137 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2138 pr_debug("ray_cs rx'ed fragment\n");
2139 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2140 + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2141 total_len = tmp;
2142 prcslink = prcs;
2143 do {
2144 tmp -=
2145 (readb(&prcslink->var.rx_packet.rx_data_length[0])
2146 << 8)
2147 + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2148 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index)
2149 == 0xFF || tmp < 0)
2150 break;
2151 prcslink = rcs_base(local)
2152 + readb(&prcslink->link_field);
2153 } while (1);
2154
2155 if (tmp < 0) {
2156 pr_debug(
2157 "ray_cs rx_data fragment lengths don't add up\n");
2158 local->stats.rx_dropped++;
2159 release_frag_chain(local, prcs);
2160 return;
2161 }
2162 } else { /* Single unfragmented packet */
2163 total_len = rx_len;
2164 }
2165
2166 skb = dev_alloc_skb(total_len + 5);
2167 if (skb == NULL) {
2168 pr_debug("ray_cs rx_data could not allocate skb\n");
2169 local->stats.rx_dropped++;
2170 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2171 release_frag_chain(local, prcs);
2172 return;
2173 }
2174 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */
2175
2176 pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len,
2177 rx_len);
2178
2179 /************************/
2180 /* Reserve enough room for the whole damn packet. */
2181 rx_ptr = skb_put(skb, total_len);
2182 /* Copy the whole packet to sk_buff */
2183 rx_ptr +=
2184 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2185 /* Get source address */
2186 #ifdef WIRELESS_SPY
2187 skb_copy_from_linear_data_offset(skb,
2188 offsetof(struct mac_header, addr_2),
2189 linksrcaddr, ETH_ALEN);
2190 #endif
2191 /* Now, deal with encapsulation/translation/sniffer */
2192 if (!sniffer) {
2193 if (!translate) {
2194 /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2195 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2196 skb_pull(skb, RX_MAC_HEADER_LENGTH);
2197 } else {
2198 /* Do translation */
2199 untranslate(local, skb, total_len);
2200 }
2201 } else { /* sniffer mode, so just pass whole packet */
2202 }
2203
2204 /************************/
2205 /* Now pick up the rest of the fragments if any */
2206 tmp = 17;
2207 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2208 prcslink = prcs;
2209 pr_debug("ray_cs rx_data in fragment loop\n");
2210 do {
2211 prcslink = rcs_base(local)
2212 +
2213 readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2214 rx_len =
2215 ((readb(&prcslink->var.rx_packet.rx_data_length[0])
2216 << 8)
2217 +
2218 readb(&prcslink->var.rx_packet.rx_data_length[1]))
2219 & RX_BUFF_END;
2220 pkt_addr =
2221 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) <<
2222 8)
2223 + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2224 & RX_BUFF_END;
2225
2226 rx_ptr +=
2227 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2228
2229 } while (tmp-- &&
2230 readb(&prcslink->var.rx_packet.next_frag_rcs_index) !=
2231 0xFF);
2232 release_frag_chain(local, prcs);
2233 }
2234
2235 skb->protocol = eth_type_trans(skb, dev);
2236 netif_rx(skb);
2237 local->stats.rx_packets++;
2238 local->stats.rx_bytes += total_len;
2239
2240 /* Gather signal strength per address */
2241 #ifdef WIRELESS_SPY
2242 /* For the Access Point or the node having started the ad-hoc net
2243 * note : ad-hoc work only in some specific configurations, but we
2244 * kludge in ray_get_wireless_stats... */
2245 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) {
2246 /* Update statistics */
2247 /*local->wstats.qual.qual = none ? */
2248 local->wstats.qual.level = siglev;
2249 /*local->wstats.qual.noise = none ? */
2250 local->wstats.qual.updated = 0x2;
2251 }
2252 /* Now, update the spy stuff */
2253 {
2254 struct iw_quality wstats;
2255 wstats.level = siglev;
2256 /* wstats.noise = none ? */
2257 /* wstats.qual = none ? */
2258 wstats.updated = 0x2;
2259 /* Update spy records */
2260 wireless_spy_update(dev, linksrcaddr, &wstats);
2261 }
2262 #endif /* WIRELESS_SPY */
2263 } /* end rx_data */
2264
2265 /*===========================================================================*/
2266 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2267 {
2268 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH);
2269 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2270 __be16 type = *(__be16 *) psnap->ethertype;
2271 int delta;
2272 struct ethhdr *peth;
2273 UCHAR srcaddr[ADDRLEN];
2274 UCHAR destaddr[ADDRLEN];
2275 static const UCHAR org_bridge[3] = { 0, 0, 0xf8 };
2276 static const UCHAR org_1042[3] = { 0, 0, 0 };
2277
2278 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2279 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2280
2281 #if 0
2282 if {
2283 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
2284 DUMP_PREFIX_NONE, 16, 1,
2285 skb->data, 64, true);
2286 printk(KERN_DEBUG
2287 "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2288 ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
2289 psnap->org[0], psnap->org[1], psnap->org[2]);
2290 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data);
2291 }
2292 #endif
2293
2294 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2295 /* not a snap type so leave it alone */
2296 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2297 psnap->dsap, psnap->ssap, psnap->ctrl);
2298
2299 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2300 peth = (struct ethhdr *)(skb->data + delta);
2301 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2302 } else { /* Its a SNAP */
2303 if (memcmp(psnap->org, org_bridge, 3) == 0) {
2304 /* EtherII and nuke the LLC */
2305 pr_debug("ray_cs untranslate Bridge encap\n");
2306 delta = RX_MAC_HEADER_LENGTH
2307 + sizeof(struct snaphdr_t) - ETH_HLEN;
2308 peth = (struct ethhdr *)(skb->data + delta);
2309 peth->h_proto = type;
2310 } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2311 switch (ntohs(type)) {
2312 case ETH_P_IPX:
2313 case ETH_P_AARP:
2314 pr_debug("ray_cs untranslate RFC IPX/AARP\n");
2315 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2316 peth = (struct ethhdr *)(skb->data + delta);
2317 peth->h_proto =
2318 htons(len - RX_MAC_HEADER_LENGTH);
2319 break;
2320 default:
2321 pr_debug("ray_cs untranslate RFC default\n");
2322 delta = RX_MAC_HEADER_LENGTH +
2323 sizeof(struct snaphdr_t) - ETH_HLEN;
2324 peth = (struct ethhdr *)(skb->data + delta);
2325 peth->h_proto = type;
2326 break;
2327 }
2328 } else {
2329 printk("ray_cs untranslate very confused by packet\n");
2330 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2331 peth = (struct ethhdr *)(skb->data + delta);
2332 peth->h_proto = type;
2333 }
2334 }
2335 /* TBD reserve skb_reserve(skb, delta); */
2336 skb_pull(skb, delta);
2337 pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta,
2338 skb->data);
2339 memcpy(peth->h_dest, destaddr, ADDRLEN);
2340 memcpy(peth->h_source, srcaddr, ADDRLEN);
2341 #if 0
2342 {
2343 int i;
2344 printk(KERN_DEBUG "skb->data after untranslate:");
2345 for (i = 0; i < 64; i++)
2346 printk("%02x ", skb->data[i]);
2347 printk("\n");
2348 }
2349 #endif
2350 } /* end untranslate */
2351
2352 /*===========================================================================*/
2353 /* Copy data from circular receive buffer to PC memory.
2354 * dest = destination address in PC memory
2355 * pkt_addr = source address in receive buffer
2356 * len = length of packet to copy
2357 */
2358 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr,
2359 int length)
2360 {
2361 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2362 if (wrap_bytes <= 0) {
2363 memcpy_fromio(dest, local->rmem + pkt_addr, length);
2364 } else { /* Packet wrapped in circular buffer */
2365
2366 memcpy_fromio(dest, local->rmem + pkt_addr,
2367 length - wrap_bytes);
2368 memcpy_fromio(dest + length - wrap_bytes, local->rmem,
2369 wrap_bytes);
2370 }
2371 return length;
2372 }
2373
2374 /*===========================================================================*/
2375 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs)
2376 {
2377 struct rcs __iomem *prcslink = prcs;
2378 int tmp = 17;
2379 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2380
2381 while (tmp--) {
2382 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2383 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2384 pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n",
2385 rcsindex);
2386 break;
2387 }
2388 prcslink = rcs_base(local) + rcsindex;
2389 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2390 }
2391 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2392 }
2393
2394 /*===========================================================================*/
2395 static void authenticate(ray_dev_t *local)
2396 {
2397 struct pcmcia_device *link = local->finder;
2398 dev_dbg(&link->dev, "ray_cs Starting authentication.\n");
2399 if (!(pcmcia_dev_present(link))) {
2400 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n");
2401 return;
2402 }
2403
2404 del_timer(&local->timer);
2405 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2406 local->timer.function = join_net;
2407 } else {
2408 local->timer.function = authenticate_timeout;
2409 }
2410 local->timer.expires = jiffies + HZ * 2;
2411 add_timer(&local->timer);
2412 local->authentication_state = AWAITING_RESPONSE;
2413 } /* end authenticate */
2414
2415 /*===========================================================================*/
2416 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2417 unsigned int pkt_addr, int rx_len)
2418 {
2419 UCHAR buff[256];
2420 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2421
2422 del_timer(&local->timer);
2423
2424 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2425 /* if we are trying to get authenticated */
2426 if (local->sparm.b4.a_network_type == ADHOC) {
2427 pr_debug("ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n",
2428 msg->var[0], msg->var[1], msg->var[2], msg->var[3],
2429 msg->var[4], msg->var[5]);
2430 if (msg->var[2] == 1) {
2431 pr_debug("ray_cs Sending authentication response.\n");
2432 if (!build_auth_frame
2433 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2434 local->authentication_state = NEED_TO_AUTH;
2435 memcpy(local->auth_id, msg->mac.addr_2,
2436 ADDRLEN);
2437 }
2438 }
2439 } else { /* Infrastructure network */
2440
2441 if (local->authentication_state == AWAITING_RESPONSE) {
2442 /* Verify authentication sequence #2 and success */
2443 if (msg->var[2] == 2) {
2444 if ((msg->var[3] | msg->var[4]) == 0) {
2445 pr_debug("Authentication successful\n");
2446 local->card_status = CARD_AUTH_COMPLETE;
2447 associate(local);
2448 local->authentication_state =
2449 AUTHENTICATED;
2450 } else {
2451 pr_debug("Authentication refused\n");
2452 local->card_status = CARD_AUTH_REFUSED;
2453 join_net(&local->timer);
2454 local->authentication_state =
2455 UNAUTHENTICATED;
2456 }
2457 }
2458 }
2459 }
2460
2461 } /* end rx_authenticate */
2462
2463 /*===========================================================================*/
2464 static void associate(ray_dev_t *local)
2465 {
2466 struct ccs __iomem *pccs;
2467 struct pcmcia_device *link = local->finder;
2468 struct net_device *dev = link->priv;
2469 int ccsindex;
2470 if (!(pcmcia_dev_present(link))) {
2471 dev_dbg(&link->dev, "ray_cs associate - device not present\n");
2472 return;
2473 }
2474 /* If no tx buffers available, return */
2475 if ((ccsindex = get_free_ccs(local)) < 0) {
2476 /* TBD should never be here but... what if we are? */
2477 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n");
2478 return;
2479 }
2480 dev_dbg(&link->dev, "ray_cs Starting association with access point\n");
2481 pccs = ccs_base(local) + ccsindex;
2482 /* fill in the CCS */
2483 writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2484 /* Interrupt the firmware to process the command */
2485 if (interrupt_ecf(local, ccsindex)) {
2486 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
2487 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2488
2489 del_timer(&local->timer);
2490 local->timer.expires = jiffies + HZ * 2;
2491 local->timer.function = join_net;
2492 add_timer(&local->timer);
2493 local->card_status = CARD_ASSOC_FAILED;
2494 return;
2495 }
2496 if (!sniffer)
2497 netif_start_queue(dev);
2498
2499 } /* end associate */
2500
2501 /*===========================================================================*/
2502 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2503 unsigned int pkt_addr, int rx_len)
2504 {
2505 /* UCHAR buff[256];
2506 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2507 */
2508 pr_debug("Deauthentication frame received\n");
2509 local->authentication_state = UNAUTHENTICATED;
2510 /* Need to reauthenticate or rejoin depending on reason code */
2511 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2512 */
2513 }
2514
2515 /*===========================================================================*/
2516 static void clear_interrupt(ray_dev_t *local)
2517 {
2518 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2519 }
2520
2521 /*===========================================================================*/
2522 #ifdef CONFIG_PROC_FS
2523 #define MAXDATA (PAGE_SIZE - 80)
2524
2525 static const char *card_status[] = {
2526 "Card inserted - uninitialized", /* 0 */
2527 "Card not downloaded", /* 1 */
2528 "Waiting for download parameters", /* 2 */
2529 "Card doing acquisition", /* 3 */
2530 "Acquisition complete", /* 4 */
2531 "Authentication complete", /* 5 */
2532 "Association complete", /* 6 */
2533 "???", "???", "???", "???", /* 7 8 9 10 undefined */
2534 "Card init error", /* 11 */
2535 "Download parameters error", /* 12 */
2536 "???", /* 13 */
2537 "Acquisition failed", /* 14 */
2538 "Authentication refused", /* 15 */
2539 "Association failed" /* 16 */
2540 };
2541
2542 static const char *nettype[] = { "Adhoc", "Infra " };
2543 static const char *framing[] = { "Encapsulation", "Translation" }
2544
2545 ;
2546 /*===========================================================================*/
2547 static int ray_cs_proc_show(struct seq_file *m, void *v)
2548 {
2549 /* Print current values which are not available via other means
2550 * eg ifconfig
2551 */
2552 int i;
2553 struct pcmcia_device *link;
2554 struct net_device *dev;
2555 ray_dev_t *local;
2556 UCHAR *p;
2557 struct freq_hop_element *pfh;
2558 UCHAR c[33];
2559
2560 link = this_device;
2561 if (!link)
2562 return 0;
2563 dev = (struct net_device *)link->priv;
2564 if (!dev)
2565 return 0;
2566 local = netdev_priv(dev);
2567 if (!local)
2568 return 0;
2569
2570 seq_puts(m, "Raylink Wireless LAN driver status\n");
2571 seq_printf(m, "%s\n", rcsid);
2572 /* build 4 does not report version, and field is 0x55 after memtest */
2573 seq_puts(m, "Firmware version = ");
2574 if (local->fw_ver == 0x55)
2575 seq_puts(m, "4 - Use dump_cis for more details\n");
2576 else
2577 seq_printf(m, "%2d.%02d.%02d\n",
2578 local->fw_ver, local->fw_bld, local->fw_var);
2579
2580 for (i = 0; i < 32; i++)
2581 c[i] = local->sparm.b5.a_current_ess_id[i];
2582 c[32] = 0;
2583 seq_printf(m, "%s network ESSID = \"%s\"\n",
2584 nettype[local->sparm.b5.a_network_type], c);
2585
2586 p = local->bss_id;
2587 seq_printf(m, "BSSID = %pM\n", p);
2588
2589 seq_printf(m, "Country code = %d\n",
2590 local->sparm.b5.a_curr_country_code);
2591
2592 i = local->card_status;
2593 if (i < 0)
2594 i = 10;
2595 if (i > 16)
2596 i = 10;
2597 seq_printf(m, "Card status = %s\n", card_status[i]);
2598
2599 seq_printf(m, "Framing mode = %s\n", framing[translate]);
2600
2601 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl);
2602
2603 if (local->beacon_rxed) {
2604 /* Pull some fields out of last beacon received */
2605 seq_printf(m, "Beacon Interval = %d Kus\n",
2606 local->last_bcn.beacon_intvl[0]
2607 + 256 * local->last_bcn.beacon_intvl[1]);
2608
2609 p = local->last_bcn.elements;
2610 if (p[0] == C_ESSID_ELEMENT_ID)
2611 p += p[1] + 2;
2612 else {
2613 seq_printf(m,
2614 "Parse beacon failed at essid element id = %d\n",
2615 p[0]);
2616 return 0;
2617 }
2618
2619 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2620 seq_puts(m, "Supported rate codes = ");
2621 for (i = 2; i < p[1] + 2; i++)
2622 seq_printf(m, "0x%02x ", p[i]);
2623 seq_putc(m, '\n');
2624 p += p[1] + 2;
2625 } else {
2626 seq_puts(m, "Parse beacon failed at rates element\n");
2627 return 0;
2628 }
2629
2630 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2631 pfh = (struct freq_hop_element *)p;
2632 seq_printf(m, "Hop dwell = %d Kus\n",
2633 pfh->dwell_time[0] +
2634 256 * pfh->dwell_time[1]);
2635 seq_printf(m, "Hop set = %d\n",
2636 pfh->hop_set);
2637 seq_printf(m, "Hop pattern = %d\n",
2638 pfh->hop_pattern);
2639 seq_printf(m, "Hop index = %d\n",
2640 pfh->hop_index);
2641 p += p[1] + 2;
2642 } else {
2643 seq_puts(m,
2644 "Parse beacon failed at FH param element\n");
2645 return 0;
2646 }
2647 } else {
2648 seq_puts(m, "No beacons received\n");
2649 }
2650 return 0;
2651 }
2652 #endif
2653 /*===========================================================================*/
2654 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2655 {
2656 int addr;
2657 struct ccs __iomem *pccs;
2658 struct tx_msg __iomem *ptx;
2659 int ccsindex;
2660
2661 /* If no tx buffers available, return */
2662 if ((ccsindex = get_free_tx_ccs(local)) < 0) {
2663 pr_debug("ray_cs send authenticate - No free tx ccs\n");
2664 return -1;
2665 }
2666
2667 pccs = ccs_base(local) + ccsindex;
2668
2669 /* Address in card space */
2670 addr = TX_BUF_BASE + (ccsindex << 11);
2671 /* fill in the CCS */
2672 writeb(CCS_TX_REQUEST, &pccs->cmd);
2673 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2674 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2675 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2676 writeb(TX_AUTHENTICATE_LENGTH_LSB,
2677 pccs->var.tx_request.tx_data_length + 1);
2678 writeb(0, &pccs->var.tx_request.pow_sav_mode);
2679
2680 ptx = local->sram + addr;
2681 /* fill in the mac header */
2682 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2683 writeb(0, &ptx->mac.frame_ctl_2);
2684
2685 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2686 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2687 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2688
2689 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2690 memset_io(ptx->var, 0, 6);
2691 writeb(auth_type & 0xff, ptx->var + 2);
2692
2693 /* Interrupt the firmware to process the command */
2694 if (interrupt_ecf(local, ccsindex)) {
2695 pr_debug(
2696 "ray_cs send authentication request failed - ECF not ready for intr\n");
2697 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2698 return -1;
2699 }
2700 return 0;
2701 } /* End build_auth_frame */
2702
2703 /*===========================================================================*/
2704 #ifdef CONFIG_PROC_FS
2705 static ssize_t ray_cs_essid_proc_write(struct file *file,
2706 const char __user *buffer, size_t count, loff_t *pos)
2707 {
2708 static char proc_essid[33];
2709 unsigned int len = count;
2710
2711 if (len > 32)
2712 len = 32;
2713 memset(proc_essid, 0, 33);
2714 if (copy_from_user(proc_essid, buffer, len))
2715 return -EFAULT;
2716 essid = proc_essid;
2717 return count;
2718 }
2719
2720 static const struct proc_ops ray_cs_essid_proc_ops = {
2721 .proc_write = ray_cs_essid_proc_write,
2722 .proc_lseek = noop_llseek,
2723 };
2724
2725 static ssize_t int_proc_write(struct file *file, const char __user *buffer,
2726 size_t count, loff_t *pos)
2727 {
2728 static char proc_number[10];
2729 char *p;
2730 int nr, len;
2731
2732 if (!count)
2733 return 0;
2734
2735 if (count > 9)
2736 return -EINVAL;
2737 if (copy_from_user(proc_number, buffer, count))
2738 return -EFAULT;
2739 p = proc_number;
2740 nr = 0;
2741 len = count;
2742 do {
2743 unsigned int c = *p - '0';
2744 if (c > 9)
2745 return -EINVAL;
2746 nr = nr * 10 + c;
2747 p++;
2748 } while (--len);
2749 *(int *)PDE_DATA(file_inode(file)) = nr;
2750 return count;
2751 }
2752
2753 static const struct proc_ops int_proc_ops = {
2754 .proc_write = int_proc_write,
2755 .proc_lseek = noop_llseek,
2756 };
2757 #endif
2758
2759 static const struct pcmcia_device_id ray_ids[] = {
2760 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2761 PCMCIA_DEVICE_NULL,
2762 };
2763
2764 MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2765
2766 static struct pcmcia_driver ray_driver = {
2767 .owner = THIS_MODULE,
2768 .name = "ray_cs",
2769 .probe = ray_probe,
2770 .remove = ray_detach,
2771 .id_table = ray_ids,
2772 .suspend = ray_suspend,
2773 .resume = ray_resume,
2774 };
2775
2776 static int __init init_ray_cs(void)
2777 {
2778 int rc;
2779
2780 pr_debug("%s\n", rcsid);
2781 rc = pcmcia_register_driver(&ray_driver);
2782 pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n",
2783 rc);
2784 if (rc)
2785 return rc;
2786
2787 #ifdef CONFIG_PROC_FS
2788 proc_mkdir("driver/ray_cs", NULL);
2789
2790 proc_create_single("driver/ray_cs/ray_cs", 0, NULL, ray_cs_proc_show);
2791 proc_create("driver/ray_cs/essid", 0200, NULL, &ray_cs_essid_proc_ops);
2792 proc_create_data("driver/ray_cs/net_type", 0200, NULL, &int_proc_ops,
2793 &net_type);
2794 proc_create_data("driver/ray_cs/translate", 0200, NULL, &int_proc_ops,
2795 &translate);
2796 #endif
2797 if (translate != 0)
2798 translate = 1;
2799 return 0;
2800 } /* init_ray_cs */
2801
2802 /*===========================================================================*/
2803
2804 static void __exit exit_ray_cs(void)
2805 {
2806 pr_debug("ray_cs: cleanup_module\n");
2807
2808 #ifdef CONFIG_PROC_FS
2809 remove_proc_subtree("driver/ray_cs", NULL);
2810 #endif
2811
2812 pcmcia_unregister_driver(&ray_driver);
2813 } /* exit_ray_cs */
2814
2815 module_init(init_ray_cs);
2816 module_exit(exit_ray_cs);
2817
2818 /*===========================================================================*/
Linux with added FPC-III support