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dmaengine: imx-sdma: Let the core do the device node validation
[linux/fpc-iii.git] / drivers / net / wireless / ray_cs.c
blobee4d8106bba59cf9d6466d33e124eb241488d27a
1 /*=============================================================================
2 *
3 * A PCMCIA client driver for the Raylink wireless LAN card.
4 * The starting point for this module was the skeleton.c in the
5 * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net
6 *
7 *
8 * Copyright (c) 1998 Corey Thomas (corey@world.std.com)
9 *
10 * This driver is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 only of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * It is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, see <http://www.gnu.org/licenses/>.
21 *
22 * Changes:
23 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
24 * - reorganize kmallocs in ray_attach, checking all for failure
25 * and releasing the previous allocations if one fails
26 *
27 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003
28 * - Audit copy_to_user in ioctl(SIOCGIWESSID)
29 *
30 =============================================================================*/
31
32 #include <linux/module.h>
33 #include <linux/kernel.h>
34 #include <linux/proc_fs.h>
35 #include <linux/ptrace.h>
36 #include <linux/seq_file.h>
37 #include <linux/string.h>
38 #include <linux/timer.h>
39 #include <linux/init.h>
40 #include <linux/netdevice.h>
41 #include <linux/etherdevice.h>
42 #include <linux/if_arp.h>
43 #include <linux/ioport.h>
44 #include <linux/skbuff.h>
45 #include <linux/ieee80211.h>
46
47 #include <pcmcia/cistpl.h>
48 #include <pcmcia/cisreg.h>
49 #include <pcmcia/ds.h>
50
51 #include <linux/wireless.h>
52 #include <net/iw_handler.h>
53
54 #include <asm/io.h>
55 #include <asm/byteorder.h>
56 #include <linux/uaccess.h>
57
58 /* Warning : these stuff will slow down the driver... */
59 #define WIRELESS_SPY /* Enable spying addresses */
60 /* Definitions we need for spy */
61 typedef struct iw_statistics iw_stats;
62 typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */
63
64 #include "rayctl.h"
65 #include "ray_cs.h"
66
67
68 /** Prototypes based on PCMCIA skeleton driver *******************************/
69 static int ray_config(struct pcmcia_device *link);
70 static void ray_release(struct pcmcia_device *link);
71 static void ray_detach(struct pcmcia_device *p_dev);
72
73 /***** Prototypes indicated by device structure ******************************/
74 static int ray_dev_close(struct net_device *dev);
75 static int ray_dev_config(struct net_device *dev, struct ifmap *map);
76 static struct net_device_stats *ray_get_stats(struct net_device *dev);
77 static int ray_dev_init(struct net_device *dev);
78
79 static int ray_open(struct net_device *dev);
80 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
81 struct net_device *dev);
82 static void set_multicast_list(struct net_device *dev);
83 static void ray_update_multi_list(struct net_device *dev, int all);
84 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
85 unsigned char *data, int len);
86 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
87 UCHAR msg_type, unsigned char *data);
88 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
89 static iw_stats *ray_get_wireless_stats(struct net_device *dev);
90 static const struct iw_handler_def ray_handler_def;
91
92 /***** Prototypes for raylink functions **************************************/
93 static void authenticate(ray_dev_t *local);
94 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
95 static void authenticate_timeout(struct timer_list *t);
96 static int get_free_ccs(ray_dev_t *local);
97 static int get_free_tx_ccs(ray_dev_t *local);
98 static void init_startup_params(ray_dev_t *local);
99 static int parse_addr(char *in_str, UCHAR *out);
100 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type);
101 static int ray_init(struct net_device *dev);
102 static int interrupt_ecf(ray_dev_t *local, int ccs);
103 static void ray_reset(struct net_device *dev);
104 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
105 static void verify_dl_startup(struct timer_list *t);
106
107 /* Prototypes for interrpt time functions **********************************/
108 static irqreturn_t ray_interrupt(int reg, void *dev_id);
109 static void clear_interrupt(ray_dev_t *local);
110 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
111 unsigned int pkt_addr, int rx_len);
112 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
113 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
114 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
115 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
116 unsigned int pkt_addr, int rx_len);
117 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
118 unsigned int pkt_addr, int rx_len);
119 static void associate(ray_dev_t *local);
120
121 /* Card command functions */
122 static int dl_startup_params(struct net_device *dev);
123 static void join_net(struct timer_list *t);
124 static void start_net(struct timer_list *t);
125
126 /*===========================================================================*/
127 /* Parameters that can be set with 'insmod' */
128
129 /* ADHOC=0, Infrastructure=1 */
130 static int net_type = ADHOC;
131
132 /* Hop dwell time in Kus (1024 us units defined by 802.11) */
133 static int hop_dwell = 128;
134
135 /* Beacon period in Kus */
136 static int beacon_period = 256;
137
138 /* power save mode (0 = off, 1 = save power) */
139 static int psm;
140
141 /* String for network's Extended Service Set ID. 32 Characters max */
142 static char *essid;
143
144 /* Default to encapsulation unless translation requested */
145 static bool translate = true;
146
147 static int country = USA;
148
149 static int sniffer;
150
151 static int bc;
152
153 /* 48 bit physical card address if overriding card's real physical
154 * address is required. Since IEEE 802.11 addresses are 48 bits
155 * like ethernet, an int can't be used, so a string is used. To
156 * allow use of addresses starting with a decimal digit, the first
157 * character must be a letter and will be ignored. This letter is
158 * followed by up to 12 hex digits which are the address. If less
159 * than 12 digits are used, the address will be left filled with 0's.
160 * Note that bit 0 of the first byte is the broadcast bit, and evil
161 * things will happen if it is not 0 in a card address.
162 */
163 static char *phy_addr = NULL;
164
165 static unsigned int ray_mem_speed = 500;
166
167 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
168 static struct pcmcia_device *this_device = NULL;
169
170 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
171 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
172 MODULE_LICENSE("GPL");
173
174 module_param(net_type, int, 0);
175 module_param(hop_dwell, int, 0);
176 module_param(beacon_period, int, 0);
177 module_param(psm, int, 0);
178 module_param(essid, charp, 0);
179 module_param(translate, bool, 0);
180 module_param(country, int, 0);
181 module_param(sniffer, int, 0);
182 module_param(bc, int, 0);
183 module_param(phy_addr, charp, 0);
184 module_param(ray_mem_speed, int, 0);
185
186 static const UCHAR b5_default_startup_parms[] = {
187 0, 0, /* Adhoc station */
188 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
189 0, 0, 0, 0, 0, 0, 0, 0,
190 0, 0, 0, 0, 0, 0, 0, 0,
191 0, 0, 0, 0, 0, 0, 0, 0,
192 1, 0, /* Active scan, CA Mode */
193 0, 0, 0, 0, 0, 0, /* No default MAC addr */
194 0x7f, 0xff, /* Frag threshold */
195 0x00, 0x80, /* Hop time 128 Kus */
196 0x01, 0x00, /* Beacon period 256 Kus */
197 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
198 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */
199 0x7f, 0xff, /* RTS threshold */
200 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
201 0x05, /* assoc resp timeout thresh */
202 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */
203 0, /* Promiscuous mode */
204 0x0c, 0x0bd, /* Unique word */
205 0x32, /* Slot time */
206 0xff, 0xff, /* roam-low snr, low snr count */
207 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
208 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */
209 /* b4 - b5 differences start here */
210 0x00, 0x3f, /* CW max */
211 0x00, 0x0f, /* CW min */
212 0x04, 0x08, /* Noise gain, limit offset */
213 0x28, 0x28, /* det rssi, med busy offsets */
214 7, /* det sync thresh */
215 0, 2, 2, /* test mode, min, max */
216 0, /* allow broadcast SSID probe resp */
217 0, 0, /* privacy must start, can join */
218 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */
219 };
220
221 static const UCHAR b4_default_startup_parms[] = {
222 0, 0, /* Adhoc station */
223 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
224 0, 0, 0, 0, 0, 0, 0, 0,
225 0, 0, 0, 0, 0, 0, 0, 0,
226 0, 0, 0, 0, 0, 0, 0, 0,
227 1, 0, /* Active scan, CA Mode */
228 0, 0, 0, 0, 0, 0, /* No default MAC addr */
229 0x7f, 0xff, /* Frag threshold */
230 0x02, 0x00, /* Hop time */
231 0x00, 0x01, /* Beacon period */
232 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
233 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */
234 0x7f, 0xff, /* RTS threshold */
235 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
236 0x05, /* assoc resp timeout thresh */
237 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */
238 0, /* Promiscuous mode */
239 0x0c, 0x0bd, /* Unique word */
240 0x4e, /* Slot time (TBD seems wrong) */
241 0xff, 0xff, /* roam-low snr, low snr count */
242 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
243 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */
244 /* b4 - b5 differences start here */
245 0x3f, 0x0f, /* CW max, min */
246 0x04, 0x08, /* Noise gain, limit offset */
247 0x28, 0x28, /* det rssi, med busy offsets */
248 7, /* det sync thresh */
249 0, 2, 2, /* test mode, min, max */
250 0, /* rx/tx delay */
251 0, 0, 0, 0, 0, 0, /* current BSS id */
252 0 /* hop set */
253 };
254
255 /*===========================================================================*/
256 static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 };
257
258 static const char hop_pattern_length[] = { 1,
259 USA_HOP_MOD, EUROPE_HOP_MOD,
260 JAPAN_HOP_MOD, KOREA_HOP_MOD,
261 SPAIN_HOP_MOD, FRANCE_HOP_MOD,
262 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
263 JAPAN_TEST_HOP_MOD
264 };
265
266 static const char rcsid[] =
267 "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
268
269 static const struct net_device_ops ray_netdev_ops = {
270 .ndo_init = ray_dev_init,
271 .ndo_open = ray_open,
272 .ndo_stop = ray_dev_close,
273 .ndo_start_xmit = ray_dev_start_xmit,
274 .ndo_set_config = ray_dev_config,
275 .ndo_get_stats = ray_get_stats,
276 .ndo_set_rx_mode = set_multicast_list,
277 .ndo_set_mac_address = eth_mac_addr,
278 .ndo_validate_addr = eth_validate_addr,
279 };
280
281 static int ray_probe(struct pcmcia_device *p_dev)
282 {
283 ray_dev_t *local;
284 struct net_device *dev;
285
286 dev_dbg(&p_dev->dev, "ray_attach()\n");
287
288 /* Allocate space for private device-specific data */
289 dev = alloc_etherdev(sizeof(ray_dev_t));
290 if (!dev)
291 goto fail_alloc_dev;
292
293 local = netdev_priv(dev);
294 local->finder = p_dev;
295
296 /* The io structure describes IO port mapping. None used here */
297 p_dev->resource[0]->end = 0;
298 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
299
300 /* General socket configuration */
301 p_dev->config_flags |= CONF_ENABLE_IRQ;
302 p_dev->config_index = 1;
303
304 p_dev->priv = dev;
305
306 local->finder = p_dev;
307 local->card_status = CARD_INSERTED;
308 local->authentication_state = UNAUTHENTICATED;
309 local->num_multi = 0;
310 dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n",
311 p_dev, dev, local, &ray_interrupt);
312
313 /* Raylink entries in the device structure */
314 dev->netdev_ops = &ray_netdev_ops;
315 dev->wireless_handlers = &ray_handler_def;
316 #ifdef WIRELESS_SPY
317 local->wireless_data.spy_data = &local->spy_data;
318 dev->wireless_data = &local->wireless_data;
319 #endif /* WIRELESS_SPY */
320
321
322 dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n");
323 netif_stop_queue(dev);
324
325 timer_setup(&local->timer, NULL, 0);
326
327 this_device = p_dev;
328 return ray_config(p_dev);
329
330 fail_alloc_dev:
331 return -ENOMEM;
332 } /* ray_attach */
333
334 static void ray_detach(struct pcmcia_device *link)
335 {
336 struct net_device *dev;
337 ray_dev_t *local;
338
339 dev_dbg(&link->dev, "ray_detach\n");
340
341 this_device = NULL;
342 dev = link->priv;
343
344 ray_release(link);
345
346 local = netdev_priv(dev);
347 del_timer_sync(&local->timer);
348
349 if (link->priv) {
350 unregister_netdev(dev);
351 free_netdev(dev);
352 }
353 dev_dbg(&link->dev, "ray_cs ray_detach ending\n");
354 } /* ray_detach */
355
356 #define MAX_TUPLE_SIZE 128
357 static int ray_config(struct pcmcia_device *link)
358 {
359 int ret = 0;
360 int i;
361 struct net_device *dev = (struct net_device *)link->priv;
362 ray_dev_t *local = netdev_priv(dev);
363
364 dev_dbg(&link->dev, "ray_config\n");
365
366 /* Determine card type and firmware version */
367 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n",
368 link->prod_id[0] ? link->prod_id[0] : " ",
369 link->prod_id[1] ? link->prod_id[1] : " ",
370 link->prod_id[2] ? link->prod_id[2] : " ",
371 link->prod_id[3] ? link->prod_id[3] : " ");
372
373 /* Now allocate an interrupt line. Note that this does not
374 actually assign a handler to the interrupt.
375 */
376 ret = pcmcia_request_irq(link, ray_interrupt);
377 if (ret)
378 goto failed;
379 dev->irq = link->irq;
380
381 ret = pcmcia_enable_device(link);
382 if (ret)
383 goto failed;
384
385 /*** Set up 32k window for shared memory (transmit and control) ************/
386 link->resource[2]->flags |= WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
387 link->resource[2]->start = 0;
388 link->resource[2]->end = 0x8000;
389 ret = pcmcia_request_window(link, link->resource[2], ray_mem_speed);
390 if (ret)
391 goto failed;
392 ret = pcmcia_map_mem_page(link, link->resource[2], 0);
393 if (ret)
394 goto failed;
395 local->sram = ioremap(link->resource[2]->start,
396 resource_size(link->resource[2]));
397
398 /*** Set up 16k window for shared memory (receive buffer) ***************/
399 link->resource[3]->flags |=
400 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
401 link->resource[3]->start = 0;
402 link->resource[3]->end = 0x4000;
403 ret = pcmcia_request_window(link, link->resource[3], ray_mem_speed);
404 if (ret)
405 goto failed;
406 ret = pcmcia_map_mem_page(link, link->resource[3], 0x8000);
407 if (ret)
408 goto failed;
409 local->rmem = ioremap(link->resource[3]->start,
410 resource_size(link->resource[3]));
411
412 /*** Set up window for attribute memory ***********************************/
413 link->resource[4]->flags |=
414 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
415 link->resource[4]->start = 0;
416 link->resource[4]->end = 0x1000;
417 ret = pcmcia_request_window(link, link->resource[4], ray_mem_speed);
418 if (ret)
419 goto failed;
420 ret = pcmcia_map_mem_page(link, link->resource[4], 0);
421 if (ret)
422 goto failed;
423 local->amem = ioremap(link->resource[4]->start,
424 resource_size(link->resource[4]));
425
426 dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram);
427 dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem);
428 dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem);
429 if (ray_init(dev) < 0) {
430 ray_release(link);
431 return -ENODEV;
432 }
433
434 SET_NETDEV_DEV(dev, &link->dev);
435 i = register_netdev(dev);
436 if (i != 0) {
437 printk("ray_config register_netdev() failed\n");
438 ray_release(link);
439 return i;
440 }
441
442 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n",
443 dev->name, dev->irq, dev->dev_addr);
444
445 return 0;
446
447 failed:
448 ray_release(link);
449 return -ENODEV;
450 } /* ray_config */
451
452 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
453 {
454 return dev->sram + CCS_BASE;
455 }
456
457 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
458 {
459 /*
460 * This looks nonsensical, since there is a separate
461 * RCS_BASE. But the difference between a "struct rcs"
462 * and a "struct ccs" ends up being in the _index_ off
463 * the base, so the base pointer is the same for both
464 * ccs/rcs.
465 */
466 return dev->sram + CCS_BASE;
467 }
468
469 /*===========================================================================*/
470 static int ray_init(struct net_device *dev)
471 {
472 int i;
473 struct ccs __iomem *pccs;
474 ray_dev_t *local = netdev_priv(dev);
475 struct pcmcia_device *link = local->finder;
476 dev_dbg(&link->dev, "ray_init(0x%p)\n", dev);
477 if (!(pcmcia_dev_present(link))) {
478 dev_dbg(&link->dev, "ray_init - device not present\n");
479 return -1;
480 }
481
482 local->net_type = net_type;
483 local->sta_type = TYPE_STA;
484
485 /* Copy the startup results to local memory */
486 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,
487 sizeof(struct startup_res_6));
488
489 /* Check Power up test status and get mac address from card */
490 if (local->startup_res.startup_word != 0x80) {
491 printk(KERN_INFO "ray_init ERROR card status = %2x\n",
492 local->startup_res.startup_word);
493 local->card_status = CARD_INIT_ERROR;
494 return -1;
495 }
496
497 local->fw_ver = local->startup_res.firmware_version[0];
498 local->fw_bld = local->startup_res.firmware_version[1];
499 local->fw_var = local->startup_res.firmware_version[2];
500 dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver,
501 local->fw_bld);
502
503 local->tib_length = 0x20;
504 if ((local->fw_ver == 5) && (local->fw_bld >= 30))
505 local->tib_length = local->startup_res.tib_length;
506 dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length);
507 /* Initialize CCS's to buffer free state */
508 pccs = ccs_base(local);
509 for (i = 0; i < NUMBER_OF_CCS; i++) {
510 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
511 }
512 init_startup_params(local);
513
514 /* copy mac address to startup parameters */
515 if (!parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) {
516 memcpy(&local->sparm.b4.a_mac_addr,
517 &local->startup_res.station_addr, ADDRLEN);
518 }
519
520 clear_interrupt(local); /* Clear any interrupt from the card */
521 local->card_status = CARD_AWAITING_PARAM;
522 dev_dbg(&link->dev, "ray_init ending\n");
523 return 0;
524 } /* ray_init */
525
526 /*===========================================================================*/
527 /* Download startup parameters to the card and command it to read them */
528 static int dl_startup_params(struct net_device *dev)
529 {
530 int ccsindex;
531 ray_dev_t *local = netdev_priv(dev);
532 struct ccs __iomem *pccs;
533 struct pcmcia_device *link = local->finder;
534
535 dev_dbg(&link->dev, "dl_startup_params entered\n");
536 if (!(pcmcia_dev_present(link))) {
537 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n");
538 return -1;
539 }
540
541 /* Copy parameters to host to ECF area */
542 if (local->fw_ver == 0x55)
543 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
544 sizeof(struct b4_startup_params));
545 else
546 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
547 sizeof(struct b5_startup_params));
548
549 /* Fill in the CCS fields for the ECF */
550 if ((ccsindex = get_free_ccs(local)) < 0)
551 return -1;
552 local->dl_param_ccs = ccsindex;
553 pccs = ccs_base(local) + ccsindex;
554 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
555 dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n",
556 local->dl_param_ccs);
557 /* Interrupt the firmware to process the command */
558 if (interrupt_ecf(local, ccsindex)) {
559 printk(KERN_INFO "ray dl_startup_params failed - "
560 "ECF not ready for intr\n");
561 local->card_status = CARD_DL_PARAM_ERROR;
562 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
563 return -2;
564 }
565 local->card_status = CARD_DL_PARAM;
566 /* Start kernel timer to wait for dl startup to complete. */
567 local->timer.expires = jiffies + HZ / 2;
568 local->timer.function = verify_dl_startup;
569 add_timer(&local->timer);
570 dev_dbg(&link->dev,
571 "ray_cs dl_startup_params started timer for verify_dl_startup\n");
572 return 0;
573 } /* dl_startup_params */
574
575 /*===========================================================================*/
576 static void init_startup_params(ray_dev_t *local)
577 {
578 int i;
579
580 if (country > JAPAN_TEST)
581 country = USA;
582 else if (country < USA)
583 country = USA;
584 /* structure for hop time and beacon period is defined here using
585 * New 802.11D6.1 format. Card firmware is still using old format
586 * until version 6.
587 * Before After
588 * a_hop_time ms byte a_hop_time ms byte
589 * a_hop_time 2s byte a_hop_time ls byte
590 * a_hop_time ls byte a_beacon_period ms byte
591 * a_beacon_period a_beacon_period ls byte
592 *
593 * a_hop_time = uS a_hop_time = KuS
594 * a_beacon_period = hops a_beacon_period = KuS
595 *//* 64ms = 010000 */
596 if (local->fw_ver == 0x55) {
597 memcpy(&local->sparm.b4, b4_default_startup_parms,
598 sizeof(struct b4_startup_params));
599 /* Translate sane kus input values to old build 4/5 format */
600 /* i = hop time in uS truncated to 3 bytes */
601 i = (hop_dwell * 1024) & 0xffffff;
602 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
603 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
604 local->sparm.b4.a_beacon_period[0] = 0;
605 local->sparm.b4.a_beacon_period[1] =
606 ((beacon_period / hop_dwell) - 1) & 0xff;
607 local->sparm.b4.a_curr_country_code = country;
608 local->sparm.b4.a_hop_pattern_length =
609 hop_pattern_length[(int)country] - 1;
610 if (bc) {
611 local->sparm.b4.a_ack_timeout = 0x50;
612 local->sparm.b4.a_sifs = 0x3f;
613 }
614 } else { /* Version 5 uses real kus values */
615 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms,
616 sizeof(struct b5_startup_params));
617
618 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
619 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
620 local->sparm.b5.a_beacon_period[0] =
621 (beacon_period >> 8) & 0xff;
622 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
623 if (psm)
624 local->sparm.b5.a_power_mgt_state = 1;
625 local->sparm.b5.a_curr_country_code = country;
626 local->sparm.b5.a_hop_pattern_length =
627 hop_pattern_length[(int)country];
628 }
629
630 local->sparm.b4.a_network_type = net_type & 0x01;
631 local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
632
633 if (essid != NULL)
634 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
635 } /* init_startup_params */
636
637 /*===========================================================================*/
638 static void verify_dl_startup(struct timer_list *t)
639 {
640 ray_dev_t *local = from_timer(local, t, timer);
641 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
642 UCHAR status;
643 struct pcmcia_device *link = local->finder;
644
645 if (!(pcmcia_dev_present(link))) {
646 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n");
647 return;
648 }
649 #if 0
650 {
651 int i;
652 printk(KERN_DEBUG
653 "verify_dl_startup parameters sent via ccs %d:\n",
654 local->dl_param_ccs);
655 for (i = 0; i < sizeof(struct b5_startup_params); i++) {
656 printk(" %2x",
657 (unsigned int)readb(local->sram +
658 HOST_TO_ECF_BASE + i));
659 }
660 printk("\n");
661 }
662 #endif
663
664 status = readb(&pccs->buffer_status);
665 if (status != CCS_BUFFER_FREE) {
666 printk(KERN_INFO
667 "Download startup params failed. Status = %d\n",
668 status);
669 local->card_status = CARD_DL_PARAM_ERROR;
670 return;
671 }
672 if (local->sparm.b4.a_network_type == ADHOC)
673 start_net(&local->timer);
674 else
675 join_net(&local->timer);
676 } /* end verify_dl_startup */
677
678 /*===========================================================================*/
679 /* Command card to start a network */
680 static void start_net(struct timer_list *t)
681 {
682 ray_dev_t *local = from_timer(local, t, timer);
683 struct ccs __iomem *pccs;
684 int ccsindex;
685 struct pcmcia_device *link = local->finder;
686 if (!(pcmcia_dev_present(link))) {
687 dev_dbg(&link->dev, "ray_cs start_net - device not present\n");
688 return;
689 }
690 /* Fill in the CCS fields for the ECF */
691 if ((ccsindex = get_free_ccs(local)) < 0)
692 return;
693 pccs = ccs_base(local) + ccsindex;
694 writeb(CCS_START_NETWORK, &pccs->cmd);
695 writeb(0, &pccs->var.start_network.update_param);
696 /* Interrupt the firmware to process the command */
697 if (interrupt_ecf(local, ccsindex)) {
698 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n");
699 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
700 return;
701 }
702 local->card_status = CARD_DOING_ACQ;
703 } /* end start_net */
704
705 /*===========================================================================*/
706 /* Command card to join a network */
707 static void join_net(struct timer_list *t)
708 {
709 ray_dev_t *local = from_timer(local, t, timer);
710
711 struct ccs __iomem *pccs;
712 int ccsindex;
713 struct pcmcia_device *link = local->finder;
714
715 if (!(pcmcia_dev_present(link))) {
716 dev_dbg(&link->dev, "ray_cs join_net - device not present\n");
717 return;
718 }
719 /* Fill in the CCS fields for the ECF */
720 if ((ccsindex = get_free_ccs(local)) < 0)
721 return;
722 pccs = ccs_base(local) + ccsindex;
723 writeb(CCS_JOIN_NETWORK, &pccs->cmd);
724 writeb(0, &pccs->var.join_network.update_param);
725 writeb(0, &pccs->var.join_network.net_initiated);
726 /* Interrupt the firmware to process the command */
727 if (interrupt_ecf(local, ccsindex)) {
728 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n");
729 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
730 return;
731 }
732 local->card_status = CARD_DOING_ACQ;
733 }
734
735
736 static void ray_release(struct pcmcia_device *link)
737 {
738 struct net_device *dev = link->priv;
739 ray_dev_t *local = netdev_priv(dev);
740
741 dev_dbg(&link->dev, "ray_release\n");
742
743 del_timer(&local->timer);
744
745 iounmap(local->sram);
746 iounmap(local->rmem);
747 iounmap(local->amem);
748 pcmcia_disable_device(link);
749
750 dev_dbg(&link->dev, "ray_release ending\n");
751 }
752
753 static int ray_suspend(struct pcmcia_device *link)
754 {
755 struct net_device *dev = link->priv;
756
757 if (link->open)
758 netif_device_detach(dev);
759
760 return 0;
761 }
762
763 static int ray_resume(struct pcmcia_device *link)
764 {
765 struct net_device *dev = link->priv;
766
767 if (link->open) {
768 ray_reset(dev);
769 netif_device_attach(dev);
770 }
771
772 return 0;
773 }
774
775 /*===========================================================================*/
776 static int ray_dev_init(struct net_device *dev)
777 {
778 #ifdef RAY_IMMEDIATE_INIT
779 int i;
780 #endif /* RAY_IMMEDIATE_INIT */
781 ray_dev_t *local = netdev_priv(dev);
782 struct pcmcia_device *link = local->finder;
783
784 dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev);
785 if (!(pcmcia_dev_present(link))) {
786 dev_dbg(&link->dev, "ray_dev_init - device not present\n");
787 return -1;
788 }
789 #ifdef RAY_IMMEDIATE_INIT
790 /* Download startup parameters */
791 if ((i = dl_startup_params(dev)) < 0) {
792 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
793 "returns 0x%x\n", i);
794 return -1;
795 }
796 #else /* RAY_IMMEDIATE_INIT */
797 /* Postpone the card init so that we can still configure the card,
798 * for example using the Wireless Extensions. The init will happen
799 * in ray_open() - Jean II */
800 dev_dbg(&link->dev,
801 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
802 local->card_status);
803 #endif /* RAY_IMMEDIATE_INIT */
804
805 /* copy mac and broadcast addresses to linux device */
806 memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
807 eth_broadcast_addr(dev->broadcast);
808
809 dev_dbg(&link->dev, "ray_dev_init ending\n");
810 return 0;
811 }
812
813 /*===========================================================================*/
814 static int ray_dev_config(struct net_device *dev, struct ifmap *map)
815 {
816 ray_dev_t *local = netdev_priv(dev);
817 struct pcmcia_device *link = local->finder;
818 /* Dummy routine to satisfy device structure */
819 dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map);
820 if (!(pcmcia_dev_present(link))) {
821 dev_dbg(&link->dev, "ray_dev_config - device not present\n");
822 return -1;
823 }
824
825 return 0;
826 }
827
828 /*===========================================================================*/
829 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
830 struct net_device *dev)
831 {
832 ray_dev_t *local = netdev_priv(dev);
833 struct pcmcia_device *link = local->finder;
834 short length = skb->len;
835
836 if (!pcmcia_dev_present(link)) {
837 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n");
838 dev_kfree_skb(skb);
839 return NETDEV_TX_OK;
840 }
841
842 dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
843 if (local->authentication_state == NEED_TO_AUTH) {
844 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n");
845 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
846 local->authentication_state = AUTHENTICATED;
847 netif_stop_queue(dev);
848 return NETDEV_TX_BUSY;
849 }
850 }
851
852 if (length < ETH_ZLEN) {
853 if (skb_padto(skb, ETH_ZLEN))
854 return NETDEV_TX_OK;
855 length = ETH_ZLEN;
856 }
857 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) {
858 case XMIT_NO_CCS:
859 case XMIT_NEED_AUTH:
860 netif_stop_queue(dev);
861 return NETDEV_TX_BUSY;
862 case XMIT_NO_INTR:
863 case XMIT_MSG_BAD:
864 case XMIT_OK:
865 default:
866 dev_kfree_skb(skb);
867 }
868
869 return NETDEV_TX_OK;
870 } /* ray_dev_start_xmit */
871
872 /*===========================================================================*/
873 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
874 UCHAR msg_type)
875 {
876 ray_dev_t *local = netdev_priv(dev);
877 struct ccs __iomem *pccs;
878 int ccsindex;
879 int offset;
880 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */
881 short int addr; /* Address of xmit buffer in card space */
882
883 pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev);
884 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) {
885 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",
886 len);
887 return XMIT_MSG_BAD;
888 }
889 switch (ccsindex = get_free_tx_ccs(local)) {
890 case ECCSBUSY:
891 pr_debug("ray_hw_xmit tx_ccs table busy\n");
892 /* fall through */
893 case ECCSFULL:
894 pr_debug("ray_hw_xmit No free tx ccs\n");
895 /* fall through */
896 case ECARDGONE:
897 netif_stop_queue(dev);
898 return XMIT_NO_CCS;
899 default:
900 break;
901 }
902 addr = TX_BUF_BASE + (ccsindex << 11);
903
904 if (msg_type == DATA_TYPE) {
905 local->stats.tx_bytes += len;
906 local->stats.tx_packets++;
907 }
908
909 ptx = local->sram + addr;
910
911 ray_build_header(local, ptx, msg_type, data);
912 if (translate) {
913 offset = translate_frame(local, ptx, data, len);
914 } else { /* Encapsulate frame */
915 /* TBD TIB length will move address of ptx->var */
916 memcpy_toio(&ptx->var, data, len);
917 offset = 0;
918 }
919
920 /* fill in the CCS */
921 pccs = ccs_base(local) + ccsindex;
922 len += TX_HEADER_LENGTH + offset;
923 writeb(CCS_TX_REQUEST, &pccs->cmd);
924 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
925 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
926 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
927 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
928 /* TBD still need psm_cam? */
929 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
930 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
931 writeb(0, &pccs->var.tx_request.antenna);
932 pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n",
933 local->net_default_tx_rate);
934
935 /* Interrupt the firmware to process the command */
936 if (interrupt_ecf(local, ccsindex)) {
937 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n");
938 /* TBD very inefficient to copy packet to buffer, and then not
939 send it, but the alternative is to queue the messages and that
940 won't be done for a while. Maybe set tbusy until a CCS is free?
941 */
942 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
943 return XMIT_NO_INTR;
944 }
945 return XMIT_OK;
946 } /* end ray_hw_xmit */
947
948 /*===========================================================================*/
949 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
950 unsigned char *data, int len)
951 {
952 __be16 proto = ((struct ethhdr *)data)->h_proto;
953 if (ntohs(proto) >= ETH_P_802_3_MIN) { /* DIX II ethernet frame */
954 pr_debug("ray_cs translate_frame DIX II\n");
955 /* Copy LLC header to card buffer */
956 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
957 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc),
958 (UCHAR *) &proto, 2);
959 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
960 /* This is the selective translation table, only 2 entries */
961 writeb(0xf8,
962 &((struct snaphdr_t __iomem *)ptx->var)->org[2]);
963 }
964 /* Copy body of ethernet packet without ethernet header */
965 memcpy_toio((void __iomem *)&ptx->var +
966 sizeof(struct snaphdr_t), data + ETH_HLEN,
967 len - ETH_HLEN);
968 return (int)sizeof(struct snaphdr_t) - ETH_HLEN;
969 } else { /* already 802 type, and proto is length */
970 pr_debug("ray_cs translate_frame 802\n");
971 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
972 pr_debug("ray_cs translate_frame evil IPX\n");
973 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
974 return 0 - ETH_HLEN;
975 }
976 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
977 return 0 - ETH_HLEN;
978 }
979 /* TBD do other frame types */
980 } /* end translate_frame */
981
982 /*===========================================================================*/
983 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
984 UCHAR msg_type, unsigned char *data)
985 {
986 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
987 /*** IEEE 802.11 Address field assignments *************
988 TODS FROMDS addr_1 addr_2 addr_3 addr_4
989 Adhoc 0 0 dest src (terminal) BSSID N/A
990 AP to Terminal 0 1 dest AP(BSSID) source N/A
991 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A
992 AP to AP 1 1 dest AP src AP dest source
993 *******************************************************/
994 if (local->net_type == ADHOC) {
995 writeb(0, &ptx->mac.frame_ctl_2);
996 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest,
997 2 * ADDRLEN);
998 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
999 } else { /* infrastructure */
1000
1001 if (local->sparm.b4.a_acting_as_ap_status) {
1002 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
1003 memcpy_toio(ptx->mac.addr_1,
1004 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1005 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
1006 memcpy_toio(ptx->mac.addr_3,
1007 ((struct ethhdr *)data)->h_source, ADDRLEN);
1008 } else { /* Terminal */
1009
1010 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
1011 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1012 memcpy_toio(ptx->mac.addr_2,
1013 ((struct ethhdr *)data)->h_source, ADDRLEN);
1014 memcpy_toio(ptx->mac.addr_3,
1015 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1016 }
1017 }
1018 } /* end encapsulate_frame */
1019
1020 /*====================================================================*/
1021
1022 /*------------------------------------------------------------------*/
1023 /*
1024 * Wireless Handler : get protocol name
1025 */
1026 static int ray_get_name(struct net_device *dev, struct iw_request_info *info,
1027 union iwreq_data *wrqu, char *extra)
1028 {
1029 strcpy(wrqu->name, "IEEE 802.11-FH");
1030 return 0;
1031 }
1032
1033 /*------------------------------------------------------------------*/
1034 /*
1035 * Wireless Handler : set frequency
1036 */
1037 static int ray_set_freq(struct net_device *dev, struct iw_request_info *info,
1038 union iwreq_data *wrqu, char *extra)
1039 {
1040 ray_dev_t *local = netdev_priv(dev);
1041 int err = -EINPROGRESS; /* Call commit handler */
1042
1043 /* Reject if card is already initialised */
1044 if (local->card_status != CARD_AWAITING_PARAM)
1045 return -EBUSY;
1046
1047 /* Setting by channel number */
1048 if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0))
1049 err = -EOPNOTSUPP;
1050 else
1051 local->sparm.b5.a_hop_pattern = wrqu->freq.m;
1052
1053 return err;
1054 }
1055
1056 /*------------------------------------------------------------------*/
1057 /*
1058 * Wireless Handler : get frequency
1059 */
1060 static int ray_get_freq(struct net_device *dev, struct iw_request_info *info,
1061 union iwreq_data *wrqu, char *extra)
1062 {
1063 ray_dev_t *local = netdev_priv(dev);
1064
1065 wrqu->freq.m = local->sparm.b5.a_hop_pattern;
1066 wrqu->freq.e = 0;
1067 return 0;
1068 }
1069
1070 /*------------------------------------------------------------------*/
1071 /*
1072 * Wireless Handler : set ESSID
1073 */
1074 static int ray_set_essid(struct net_device *dev, struct iw_request_info *info,
1075 union iwreq_data *wrqu, char *extra)
1076 {
1077 ray_dev_t *local = netdev_priv(dev);
1078
1079 /* Reject if card is already initialised */
1080 if (local->card_status != CARD_AWAITING_PARAM)
1081 return -EBUSY;
1082
1083 /* Check if we asked for `any' */
1084 if (wrqu->essid.flags == 0)
1085 /* Corey : can you do that ? */
1086 return -EOPNOTSUPP;
1087
1088 /* Check the size of the string */
1089 if (wrqu->essid.length > IW_ESSID_MAX_SIZE)
1090 return -E2BIG;
1091
1092 /* Set the ESSID in the card */
1093 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1094 memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length);
1095
1096 return -EINPROGRESS; /* Call commit handler */
1097 }
1098
1099 /*------------------------------------------------------------------*/
1100 /*
1101 * Wireless Handler : get ESSID
1102 */
1103 static int ray_get_essid(struct net_device *dev, struct iw_request_info *info,
1104 union iwreq_data *wrqu, char *extra)
1105 {
1106 ray_dev_t *local = netdev_priv(dev);
1107 UCHAR tmp[IW_ESSID_MAX_SIZE + 1];
1108
1109 /* Get the essid that was set */
1110 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1111 memcpy(tmp, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1112 tmp[IW_ESSID_MAX_SIZE] = '\0';
1113
1114 /* Push it out ! */
1115 wrqu->essid.length = strlen(tmp);
1116 wrqu->essid.flags = 1; /* active */
1117
1118 return 0;
1119 }
1120
1121 /*------------------------------------------------------------------*/
1122 /*
1123 * Wireless Handler : get AP address
1124 */
1125 static int ray_get_wap(struct net_device *dev, struct iw_request_info *info,
1126 union iwreq_data *wrqu, char *extra)
1127 {
1128 ray_dev_t *local = netdev_priv(dev);
1129
1130 memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN);
1131 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1132
1133 return 0;
1134 }
1135
1136 /*------------------------------------------------------------------*/
1137 /*
1138 * Wireless Handler : set Bit-Rate
1139 */
1140 static int ray_set_rate(struct net_device *dev, struct iw_request_info *info,
1141 union iwreq_data *wrqu, char *extra)
1142 {
1143 ray_dev_t *local = netdev_priv(dev);
1144
1145 /* Reject if card is already initialised */
1146 if (local->card_status != CARD_AWAITING_PARAM)
1147 return -EBUSY;
1148
1149 /* Check if rate is in range */
1150 if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000))
1151 return -EINVAL;
1152
1153 /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1154 if ((local->fw_ver == 0x55) && /* Please check */
1155 (wrqu->bitrate.value == 2000000))
1156 local->net_default_tx_rate = 3;
1157 else
1158 local->net_default_tx_rate = wrqu->bitrate.value / 500000;
1159
1160 return 0;
1161 }
1162
1163 /*------------------------------------------------------------------*/
1164 /*
1165 * Wireless Handler : get Bit-Rate
1166 */
1167 static int ray_get_rate(struct net_device *dev, struct iw_request_info *info,
1168 union iwreq_data *wrqu, char *extra)
1169 {
1170 ray_dev_t *local = netdev_priv(dev);
1171
1172 if (local->net_default_tx_rate == 3)
1173 wrqu->bitrate.value = 2000000; /* Hum... */
1174 else
1175 wrqu->bitrate.value = local->net_default_tx_rate * 500000;
1176 wrqu->bitrate.fixed = 0; /* We are in auto mode */
1177
1178 return 0;
1179 }
1180
1181 /*------------------------------------------------------------------*/
1182 /*
1183 * Wireless Handler : set RTS threshold
1184 */
1185 static int ray_set_rts(struct net_device *dev, struct iw_request_info *info,
1186 union iwreq_data *wrqu, char *extra)
1187 {
1188 ray_dev_t *local = netdev_priv(dev);
1189 int rthr = wrqu->rts.value;
1190
1191 /* Reject if card is already initialised */
1192 if (local->card_status != CARD_AWAITING_PARAM)
1193 return -EBUSY;
1194
1195 /* if(wrq->u.rts.fixed == 0) we should complain */
1196 if (wrqu->rts.disabled)
1197 rthr = 32767;
1198 else {
1199 if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */
1200 return -EINVAL;
1201 }
1202 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1203 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1204
1205 return -EINPROGRESS; /* Call commit handler */
1206 }
1207
1208 /*------------------------------------------------------------------*/
1209 /*
1210 * Wireless Handler : get RTS threshold
1211 */
1212 static int ray_get_rts(struct net_device *dev, struct iw_request_info *info,
1213 union iwreq_data *wrqu, char *extra)
1214 {
1215 ray_dev_t *local = netdev_priv(dev);
1216
1217 wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8)
1218 + local->sparm.b5.a_rts_threshold[1];
1219 wrqu->rts.disabled = (wrqu->rts.value == 32767);
1220 wrqu->rts.fixed = 1;
1221
1222 return 0;
1223 }
1224
1225 /*------------------------------------------------------------------*/
1226 /*
1227 * Wireless Handler : set Fragmentation threshold
1228 */
1229 static int ray_set_frag(struct net_device *dev, struct iw_request_info *info,
1230 union iwreq_data *wrqu, char *extra)
1231 {
1232 ray_dev_t *local = netdev_priv(dev);
1233 int fthr = wrqu->frag.value;
1234
1235 /* Reject if card is already initialised */
1236 if (local->card_status != CARD_AWAITING_PARAM)
1237 return -EBUSY;
1238
1239 /* if(wrq->u.frag.fixed == 0) should complain */
1240 if (wrqu->frag.disabled)
1241 fthr = 32767;
1242 else {
1243 if ((fthr < 256) || (fthr > 2347)) /* To check out ! */
1244 return -EINVAL;
1245 }
1246 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1247 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1248
1249 return -EINPROGRESS; /* Call commit handler */
1250 }
1251
1252 /*------------------------------------------------------------------*/
1253 /*
1254 * Wireless Handler : get Fragmentation threshold
1255 */
1256 static int ray_get_frag(struct net_device *dev, struct iw_request_info *info,
1257 union iwreq_data *wrqu, char *extra)
1258 {
1259 ray_dev_t *local = netdev_priv(dev);
1260
1261 wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8)
1262 + local->sparm.b5.a_frag_threshold[1];
1263 wrqu->frag.disabled = (wrqu->frag.value == 32767);
1264 wrqu->frag.fixed = 1;
1265
1266 return 0;
1267 }
1268
1269 /*------------------------------------------------------------------*/
1270 /*
1271 * Wireless Handler : set Mode of Operation
1272 */
1273 static int ray_set_mode(struct net_device *dev, struct iw_request_info *info,
1274 union iwreq_data *wrqu, char *extra)
1275 {
1276 ray_dev_t *local = netdev_priv(dev);
1277 int err = -EINPROGRESS; /* Call commit handler */
1278 char card_mode = 1;
1279
1280 /* Reject if card is already initialised */
1281 if (local->card_status != CARD_AWAITING_PARAM)
1282 return -EBUSY;
1283
1284 switch (wrqu->mode) {
1285 case IW_MODE_ADHOC:
1286 card_mode = 0;
1287 /* Fall through */
1288 case IW_MODE_INFRA:
1289 local->sparm.b5.a_network_type = card_mode;
1290 break;
1291 default:
1292 err = -EINVAL;
1293 }
1294
1295 return err;
1296 }
1297
1298 /*------------------------------------------------------------------*/
1299 /*
1300 * Wireless Handler : get Mode of Operation
1301 */
1302 static int ray_get_mode(struct net_device *dev, struct iw_request_info *info,
1303 union iwreq_data *wrqu, char *extra)
1304 {
1305 ray_dev_t *local = netdev_priv(dev);
1306
1307 if (local->sparm.b5.a_network_type)
1308 wrqu->mode = IW_MODE_INFRA;
1309 else
1310 wrqu->mode = IW_MODE_ADHOC;
1311
1312 return 0;
1313 }
1314
1315 /*------------------------------------------------------------------*/
1316 /*
1317 * Wireless Handler : get range info
1318 */
1319 static int ray_get_range(struct net_device *dev, struct iw_request_info *info,
1320 union iwreq_data *wrqu, char *extra)
1321 {
1322 struct iw_range *range = (struct iw_range *)extra;
1323
1324 memset(range, 0, sizeof(struct iw_range));
1325
1326 /* Set the length (very important for backward compatibility) */
1327 wrqu->data.length = sizeof(struct iw_range);
1328
1329 /* Set the Wireless Extension versions */
1330 range->we_version_compiled = WIRELESS_EXT;
1331 range->we_version_source = 9;
1332
1333 /* Set information in the range struct */
1334 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */
1335 range->num_channels = hop_pattern_length[(int)country];
1336 range->num_frequency = 0;
1337 range->max_qual.qual = 0;
1338 range->max_qual.level = 255; /* What's the correct value ? */
1339 range->max_qual.noise = 255; /* Idem */
1340 range->num_bitrates = 2;
1341 range->bitrate[0] = 1000000; /* 1 Mb/s */
1342 range->bitrate[1] = 2000000; /* 2 Mb/s */
1343 return 0;
1344 }
1345
1346 /*------------------------------------------------------------------*/
1347 /*
1348 * Wireless Private Handler : set framing mode
1349 */
1350 static int ray_set_framing(struct net_device *dev, struct iw_request_info *info,
1351 union iwreq_data *wrqu, char *extra)
1352 {
1353 translate = !!*(extra); /* Set framing mode */
1354
1355 return 0;
1356 }
1357
1358 /*------------------------------------------------------------------*/
1359 /*
1360 * Wireless Private Handler : get framing mode
1361 */
1362 static int ray_get_framing(struct net_device *dev, struct iw_request_info *info,
1363 union iwreq_data *wrqu, char *extra)
1364 {
1365 *(extra) = translate;
1366
1367 return 0;
1368 }
1369
1370 /*------------------------------------------------------------------*/
1371 /*
1372 * Wireless Private Handler : get country
1373 */
1374 static int ray_get_country(struct net_device *dev, struct iw_request_info *info,
1375 union iwreq_data *wrqu, char *extra)
1376 {
1377 *(extra) = country;
1378
1379 return 0;
1380 }
1381
1382 /*------------------------------------------------------------------*/
1383 /*
1384 * Commit handler : called after a bunch of SET operations
1385 */
1386 static int ray_commit(struct net_device *dev, struct iw_request_info *info,
1387 union iwreq_data *wrqu, char *extra)
1388 {
1389 return 0;
1390 }
1391
1392 /*------------------------------------------------------------------*/
1393 /*
1394 * Stats handler : return Wireless Stats
1395 */
1396 static iw_stats *ray_get_wireless_stats(struct net_device *dev)
1397 {
1398 ray_dev_t *local = netdev_priv(dev);
1399 struct pcmcia_device *link = local->finder;
1400 struct status __iomem *p = local->sram + STATUS_BASE;
1401
1402 local->wstats.status = local->card_status;
1403 #ifdef WIRELESS_SPY
1404 if ((local->spy_data.spy_number > 0)
1405 && (local->sparm.b5.a_network_type == 0)) {
1406 /* Get it from the first node in spy list */
1407 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1408 local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1409 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1410 local->wstats.qual.updated =
1411 local->spy_data.spy_stat[0].updated;
1412 }
1413 #endif /* WIRELESS_SPY */
1414
1415 if (pcmcia_dev_present(link)) {
1416 local->wstats.qual.noise = readb(&p->rxnoise);
1417 local->wstats.qual.updated |= 4;
1418 }
1419
1420 return &local->wstats;
1421 } /* end ray_get_wireless_stats */
1422
1423 /*------------------------------------------------------------------*/
1424 /*
1425 * Structures to export the Wireless Handlers
1426 */
1427
1428 static const iw_handler ray_handler[] = {
1429 IW_HANDLER(SIOCSIWCOMMIT, ray_commit),
1430 IW_HANDLER(SIOCGIWNAME, ray_get_name),
1431 IW_HANDLER(SIOCSIWFREQ, ray_set_freq),
1432 IW_HANDLER(SIOCGIWFREQ, ray_get_freq),
1433 IW_HANDLER(SIOCSIWMODE, ray_set_mode),
1434 IW_HANDLER(SIOCGIWMODE, ray_get_mode),
1435 IW_HANDLER(SIOCGIWRANGE, ray_get_range),
1436 #ifdef WIRELESS_SPY
1437 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1438 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1439 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1440 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1441 #endif /* WIRELESS_SPY */
1442 IW_HANDLER(SIOCGIWAP, ray_get_wap),
1443 IW_HANDLER(SIOCSIWESSID, ray_set_essid),
1444 IW_HANDLER(SIOCGIWESSID, ray_get_essid),
1445 IW_HANDLER(SIOCSIWRATE, ray_set_rate),
1446 IW_HANDLER(SIOCGIWRATE, ray_get_rate),
1447 IW_HANDLER(SIOCSIWRTS, ray_set_rts),
1448 IW_HANDLER(SIOCGIWRTS, ray_get_rts),
1449 IW_HANDLER(SIOCSIWFRAG, ray_set_frag),
1450 IW_HANDLER(SIOCGIWFRAG, ray_get_frag),
1451 };
1452
1453 #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */
1454 #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */
1455 #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */
1456
1457 static const iw_handler ray_private_handler[] = {
1458 [0] = ray_set_framing,
1459 [1] = ray_get_framing,
1460 [3] = ray_get_country,
1461 };
1462
1463 static const struct iw_priv_args ray_private_args[] = {
1464 /* cmd, set_args, get_args, name */
1465 {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0,
1466 "set_framing"},
1467 {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1468 "get_framing"},
1469 {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1470 "get_country"},
1471 };
1472
1473 static const struct iw_handler_def ray_handler_def = {
1474 .num_standard = ARRAY_SIZE(ray_handler),
1475 .num_private = ARRAY_SIZE(ray_private_handler),
1476 .num_private_args = ARRAY_SIZE(ray_private_args),
1477 .standard = ray_handler,
1478 .private = ray_private_handler,
1479 .private_args = ray_private_args,
1480 .get_wireless_stats = ray_get_wireless_stats,
1481 };
1482
1483 /*===========================================================================*/
1484 static int ray_open(struct net_device *dev)
1485 {
1486 ray_dev_t *local = netdev_priv(dev);
1487 struct pcmcia_device *link;
1488 link = local->finder;
1489
1490 dev_dbg(&link->dev, "ray_open('%s')\n", dev->name);
1491
1492 if (link->open == 0)
1493 local->num_multi = 0;
1494 link->open++;
1495
1496 /* If the card is not started, time to start it ! - Jean II */
1497 if (local->card_status == CARD_AWAITING_PARAM) {
1498 int i;
1499
1500 dev_dbg(&link->dev, "ray_open: doing init now !\n");
1501
1502 /* Download startup parameters */
1503 if ((i = dl_startup_params(dev)) < 0) {
1504 printk(KERN_INFO
1505 "ray_dev_init dl_startup_params failed - "
1506 "returns 0x%x\n", i);
1507 return -1;
1508 }
1509 }
1510
1511 if (sniffer)
1512 netif_stop_queue(dev);
1513 else
1514 netif_start_queue(dev);
1515
1516 dev_dbg(&link->dev, "ray_open ending\n");
1517 return 0;
1518 } /* end ray_open */
1519
1520 /*===========================================================================*/
1521 static int ray_dev_close(struct net_device *dev)
1522 {
1523 ray_dev_t *local = netdev_priv(dev);
1524 struct pcmcia_device *link;
1525 link = local->finder;
1526
1527 dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name);
1528
1529 link->open--;
1530 netif_stop_queue(dev);
1531
1532 /* In here, we should stop the hardware (stop card from beeing active)
1533 * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1534 * card is closed we can chage its configuration.
1535 * Probably also need a COR reset to get sane state - Jean II */
1536
1537 return 0;
1538 } /* end ray_dev_close */
1539
1540 /*===========================================================================*/
1541 static void ray_reset(struct net_device *dev)
1542 {
1543 pr_debug("ray_reset entered\n");
1544 }
1545
1546 /*===========================================================================*/
1547 /* Cause a firmware interrupt if it is ready for one */
1548 /* Return nonzero if not ready */
1549 static int interrupt_ecf(ray_dev_t *local, int ccs)
1550 {
1551 int i = 50;
1552 struct pcmcia_device *link = local->finder;
1553
1554 if (!(pcmcia_dev_present(link))) {
1555 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n");
1556 return -1;
1557 }
1558 dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs);
1559
1560 while (i &&
1561 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) &
1562 ECF_INTR_SET))
1563 i--;
1564 if (i == 0) {
1565 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n");
1566 return -1;
1567 }
1568 /* Fill the mailbox, then kick the card */
1569 writeb(ccs, local->sram + SCB_BASE);
1570 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1571 return 0;
1572 } /* interrupt_ecf */
1573
1574 /*===========================================================================*/
1575 /* Get next free transmit CCS */
1576 /* Return - index of current tx ccs */
1577 static int get_free_tx_ccs(ray_dev_t *local)
1578 {
1579 int i;
1580 struct ccs __iomem *pccs = ccs_base(local);
1581 struct pcmcia_device *link = local->finder;
1582
1583 if (!(pcmcia_dev_present(link))) {
1584 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n");
1585 return ECARDGONE;
1586 }
1587
1588 if (test_and_set_bit(0, &local->tx_ccs_lock)) {
1589 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n");
1590 return ECCSBUSY;
1591 }
1592
1593 for (i = 0; i < NUMBER_OF_TX_CCS; i++) {
1594 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1595 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1596 writeb(CCS_END_LIST, &(pccs + i)->link);
1597 local->tx_ccs_lock = 0;
1598 return i;
1599 }
1600 }
1601 local->tx_ccs_lock = 0;
1602 dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n");
1603 return ECCSFULL;
1604 } /* get_free_tx_ccs */
1605
1606 /*===========================================================================*/
1607 /* Get next free CCS */
1608 /* Return - index of current ccs */
1609 static int get_free_ccs(ray_dev_t *local)
1610 {
1611 int i;
1612 struct ccs __iomem *pccs = ccs_base(local);
1613 struct pcmcia_device *link = local->finder;
1614
1615 if (!(pcmcia_dev_present(link))) {
1616 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n");
1617 return ECARDGONE;
1618 }
1619 if (test_and_set_bit(0, &local->ccs_lock)) {
1620 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n");
1621 return ECCSBUSY;
1622 }
1623
1624 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1625 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1626 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1627 writeb(CCS_END_LIST, &(pccs + i)->link);
1628 local->ccs_lock = 0;
1629 return i;
1630 }
1631 }
1632 local->ccs_lock = 0;
1633 dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n");
1634 return ECCSFULL;
1635 } /* get_free_ccs */
1636
1637 /*===========================================================================*/
1638 static void authenticate_timeout(struct timer_list *t)
1639 {
1640 ray_dev_t *local = from_timer(local, t, timer);
1641 del_timer(&local->timer);
1642 printk(KERN_INFO "ray_cs Authentication with access point failed"
1643 " - timeout\n");
1644 join_net(&local->timer);
1645 }
1646
1647 /*===========================================================================*/
1648 static int parse_addr(char *in_str, UCHAR *out)
1649 {
1650 int len;
1651 int i, j, k;
1652 int status;
1653
1654 if (in_str == NULL)
1655 return 0;
1656 if ((len = strlen(in_str)) < 2)
1657 return 0;
1658 memset(out, 0, ADDRLEN);
1659
1660 status = 1;
1661 j = len - 1;
1662 if (j > 12)
1663 j = 12;
1664 i = 5;
1665
1666 while (j > 0) {
1667 if ((k = hex_to_bin(in_str[j--])) != -1)
1668 out[i] = k;
1669 else
1670 return 0;
1671
1672 if (j == 0)
1673 break;
1674 if ((k = hex_to_bin(in_str[j--])) != -1)
1675 out[i] += k << 4;
1676 else
1677 return 0;
1678 if (!i--)
1679 break;
1680 }
1681 return status;
1682 }
1683
1684 /*===========================================================================*/
1685 static struct net_device_stats *ray_get_stats(struct net_device *dev)
1686 {
1687 ray_dev_t *local = netdev_priv(dev);
1688 struct pcmcia_device *link = local->finder;
1689 struct status __iomem *p = local->sram + STATUS_BASE;
1690 if (!(pcmcia_dev_present(link))) {
1691 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n");
1692 return &local->stats;
1693 }
1694 if (readb(&p->mrx_overflow_for_host)) {
1695 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1696 writeb(0, &p->mrx_overflow);
1697 writeb(0, &p->mrx_overflow_for_host);
1698 }
1699 if (readb(&p->mrx_checksum_error_for_host)) {
1700 local->stats.rx_crc_errors +=
1701 swab16(readw(&p->mrx_checksum_error));
1702 writeb(0, &p->mrx_checksum_error);
1703 writeb(0, &p->mrx_checksum_error_for_host);
1704 }
1705 if (readb(&p->rx_hec_error_for_host)) {
1706 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1707 writeb(0, &p->rx_hec_error);
1708 writeb(0, &p->rx_hec_error_for_host);
1709 }
1710 return &local->stats;
1711 }
1712
1713 /*===========================================================================*/
1714 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value,
1715 int len)
1716 {
1717 ray_dev_t *local = netdev_priv(dev);
1718 struct pcmcia_device *link = local->finder;
1719 int ccsindex;
1720 int i;
1721 struct ccs __iomem *pccs;
1722
1723 if (!(pcmcia_dev_present(link))) {
1724 dev_dbg(&link->dev, "ray_update_parm - device not present\n");
1725 return;
1726 }
1727
1728 if ((ccsindex = get_free_ccs(local)) < 0) {
1729 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n");
1730 return;
1731 }
1732 pccs = ccs_base(local) + ccsindex;
1733 writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1734 writeb(objid, &pccs->var.update_param.object_id);
1735 writeb(1, &pccs->var.update_param.number_objects);
1736 writeb(0, &pccs->var.update_param.failure_cause);
1737 for (i = 0; i < len; i++) {
1738 writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1739 }
1740 /* Interrupt the firmware to process the command */
1741 if (interrupt_ecf(local, ccsindex)) {
1742 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
1743 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1744 }
1745 }
1746
1747 /*===========================================================================*/
1748 static void ray_update_multi_list(struct net_device *dev, int all)
1749 {
1750 int ccsindex;
1751 struct ccs __iomem *pccs;
1752 ray_dev_t *local = netdev_priv(dev);
1753 struct pcmcia_device *link = local->finder;
1754 void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1755
1756 if (!(pcmcia_dev_present(link))) {
1757 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n");
1758 return;
1759 } else
1760 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev);
1761 if ((ccsindex = get_free_ccs(local)) < 0) {
1762 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n");
1763 return;
1764 }
1765 pccs = ccs_base(local) + ccsindex;
1766 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1767
1768 if (all) {
1769 writeb(0xff, &pccs->var);
1770 local->num_multi = 0xff;
1771 } else {
1772 struct netdev_hw_addr *ha;
1773 int i = 0;
1774
1775 /* Copy the kernel's list of MC addresses to card */
1776 netdev_for_each_mc_addr(ha, dev) {
1777 memcpy_toio(p, ha->addr, ETH_ALEN);
1778 dev_dbg(&link->dev, "ray_update_multi add addr %pm\n",
1779 ha->addr);
1780 p += ETH_ALEN;
1781 i++;
1782 }
1783 if (i > 256 / ADDRLEN)
1784 i = 256 / ADDRLEN;
1785 writeb((UCHAR) i, &pccs->var);
1786 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i);
1787 /* Interrupt the firmware to process the command */
1788 local->num_multi = i;
1789 }
1790 if (interrupt_ecf(local, ccsindex)) {
1791 dev_dbg(&link->dev,
1792 "ray_cs update_multi failed - ECF not ready for intr\n");
1793 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1794 }
1795 } /* end ray_update_multi_list */
1796
1797 /*===========================================================================*/
1798 static void set_multicast_list(struct net_device *dev)
1799 {
1800 ray_dev_t *local = netdev_priv(dev);
1801 UCHAR promisc;
1802
1803 pr_debug("ray_cs set_multicast_list(%p)\n", dev);
1804
1805 if (dev->flags & IFF_PROMISC) {
1806 if (local->sparm.b5.a_promiscuous_mode == 0) {
1807 pr_debug("ray_cs set_multicast_list promisc on\n");
1808 local->sparm.b5.a_promiscuous_mode = 1;
1809 promisc = 1;
1810 ray_update_parm(dev, OBJID_promiscuous_mode,
1811 &promisc, sizeof(promisc));
1812 }
1813 } else {
1814 if (local->sparm.b5.a_promiscuous_mode == 1) {
1815 pr_debug("ray_cs set_multicast_list promisc off\n");
1816 local->sparm.b5.a_promiscuous_mode = 0;
1817 promisc = 0;
1818 ray_update_parm(dev, OBJID_promiscuous_mode,
1819 &promisc, sizeof(promisc));
1820 }
1821 }
1822
1823 if (dev->flags & IFF_ALLMULTI)
1824 ray_update_multi_list(dev, 1);
1825 else {
1826 if (local->num_multi != netdev_mc_count(dev))
1827 ray_update_multi_list(dev, 0);
1828 }
1829 } /* end set_multicast_list */
1830
1831 /*=============================================================================
1832 * All routines below here are run at interrupt time.
1833 =============================================================================*/
1834 static irqreturn_t ray_interrupt(int irq, void *dev_id)
1835 {
1836 struct net_device *dev = (struct net_device *)dev_id;
1837 struct pcmcia_device *link;
1838 ray_dev_t *local;
1839 struct ccs __iomem *pccs;
1840 struct rcs __iomem *prcs;
1841 UCHAR rcsindex;
1842 UCHAR tmp;
1843 UCHAR cmd;
1844 UCHAR status;
1845 UCHAR memtmp[ESSID_SIZE + 1];
1846
1847
1848 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */
1849 return IRQ_NONE;
1850
1851 pr_debug("ray_cs: interrupt for *dev=%p\n", dev);
1852
1853 local = netdev_priv(dev);
1854 link = local->finder;
1855 if (!pcmcia_dev_present(link)) {
1856 pr_debug(
1857 "ray_cs interrupt from device not present or suspended.\n");
1858 return IRQ_NONE;
1859 }
1860 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1861
1862 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
1863 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex);
1864 clear_interrupt(local);
1865 return IRQ_HANDLED;
1866 }
1867 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */
1868 pccs = ccs_base(local) + rcsindex;
1869 cmd = readb(&pccs->cmd);
1870 status = readb(&pccs->buffer_status);
1871 switch (cmd) {
1872 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */
1873 del_timer(&local->timer);
1874 if (status == CCS_COMMAND_COMPLETE) {
1875 dev_dbg(&link->dev,
1876 "ray_cs interrupt download_startup_parameters OK\n");
1877 } else {
1878 dev_dbg(&link->dev,
1879 "ray_cs interrupt download_startup_parameters fail\n");
1880 }
1881 break;
1882 case CCS_UPDATE_PARAMS:
1883 dev_dbg(&link->dev, "ray_cs interrupt update params done\n");
1884 if (status != CCS_COMMAND_COMPLETE) {
1885 tmp =
1886 readb(&pccs->var.update_param.
1887 failure_cause);
1888 dev_dbg(&link->dev,
1889 "ray_cs interrupt update params failed - reason %d\n",
1890 tmp);
1891 }
1892 break;
1893 case CCS_REPORT_PARAMS:
1894 dev_dbg(&link->dev, "ray_cs interrupt report params done\n");
1895 break;
1896 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
1897 dev_dbg(&link->dev,
1898 "ray_cs interrupt CCS Update Multicast List done\n");
1899 break;
1900 case CCS_UPDATE_POWER_SAVINGS_MODE:
1901 dev_dbg(&link->dev,
1902 "ray_cs interrupt update power save mode done\n");
1903 break;
1904 case CCS_START_NETWORK:
1905 case CCS_JOIN_NETWORK:
1906 memcpy(memtmp, local->sparm.b4.a_current_ess_id,
1907 ESSID_SIZE);
1908 memtmp[ESSID_SIZE] = '\0';
1909
1910 if (status == CCS_COMMAND_COMPLETE) {
1911 if (readb
1912 (&pccs->var.start_network.net_initiated) ==
1913 1) {
1914 dev_dbg(&link->dev,
1915 "ray_cs interrupt network \"%s\" started\n",
1916 memtmp);
1917 } else {
1918 dev_dbg(&link->dev,
1919 "ray_cs interrupt network \"%s\" joined\n",
1920 memtmp);
1921 }
1922 memcpy_fromio(&local->bss_id,
1923 pccs->var.start_network.bssid,
1924 ADDRLEN);
1925
1926 if (local->fw_ver == 0x55)
1927 local->net_default_tx_rate = 3;
1928 else
1929 local->net_default_tx_rate =
1930 readb(&pccs->var.start_network.
1931 net_default_tx_rate);
1932 local->encryption =
1933 readb(&pccs->var.start_network.encryption);
1934 if (!sniffer && (local->net_type == INFRA)
1935 && !(local->sparm.b4.a_acting_as_ap_status)) {
1936 authenticate(local);
1937 }
1938 local->card_status = CARD_ACQ_COMPLETE;
1939 } else {
1940 local->card_status = CARD_ACQ_FAILED;
1941
1942 del_timer(&local->timer);
1943 local->timer.expires = jiffies + HZ * 5;
1944 if (status == CCS_START_NETWORK) {
1945 dev_dbg(&link->dev,
1946 "ray_cs interrupt network \"%s\" start failed\n",
1947 memtmp);
1948 local->timer.function = start_net;
1949 } else {
1950 dev_dbg(&link->dev,
1951 "ray_cs interrupt network \"%s\" join failed\n",
1952 memtmp);
1953 local->timer.function = join_net;
1954 }
1955 add_timer(&local->timer);
1956 }
1957 break;
1958 case CCS_START_ASSOCIATION:
1959 if (status == CCS_COMMAND_COMPLETE) {
1960 local->card_status = CARD_ASSOC_COMPLETE;
1961 dev_dbg(&link->dev, "ray_cs association successful\n");
1962 } else {
1963 dev_dbg(&link->dev, "ray_cs association failed,\n");
1964 local->card_status = CARD_ASSOC_FAILED;
1965 join_net(&local->timer);
1966 }
1967 break;
1968 case CCS_TX_REQUEST:
1969 if (status == CCS_COMMAND_COMPLETE) {
1970 dev_dbg(&link->dev,
1971 "ray_cs interrupt tx request complete\n");
1972 } else {
1973 dev_dbg(&link->dev,
1974 "ray_cs interrupt tx request failed\n");
1975 }
1976 if (!sniffer)
1977 netif_start_queue(dev);
1978 netif_wake_queue(dev);
1979 break;
1980 case CCS_TEST_MEMORY:
1981 dev_dbg(&link->dev, "ray_cs interrupt mem test done\n");
1982 break;
1983 case CCS_SHUTDOWN:
1984 dev_dbg(&link->dev,
1985 "ray_cs interrupt Unexpected CCS returned - Shutdown\n");
1986 break;
1987 case CCS_DUMP_MEMORY:
1988 dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n");
1989 break;
1990 case CCS_START_TIMER:
1991 dev_dbg(&link->dev,
1992 "ray_cs interrupt DING - raylink timer expired\n");
1993 break;
1994 default:
1995 dev_dbg(&link->dev,
1996 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",
1997 rcsindex, cmd);
1998 }
1999 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
2000 } else { /* It's an RCS */
2001
2002 prcs = rcs_base(local) + rcsindex;
2003
2004 switch (readb(&prcs->interrupt_id)) {
2005 case PROCESS_RX_PACKET:
2006 ray_rx(dev, local, prcs);
2007 break;
2008 case REJOIN_NET_COMPLETE:
2009 dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n");
2010 local->card_status = CARD_ACQ_COMPLETE;
2011 /* do we need to clear tx buffers CCS's? */
2012 if (local->sparm.b4.a_network_type == ADHOC) {
2013 if (!sniffer)
2014 netif_start_queue(dev);
2015 } else {
2016 memcpy_fromio(&local->bss_id,
2017 prcs->var.rejoin_net_complete.
2018 bssid, ADDRLEN);
2019 dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n",
2020 local->bss_id);
2021 if (!sniffer)
2022 authenticate(local);
2023 }
2024 break;
2025 case ROAMING_INITIATED:
2026 dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n");
2027 netif_stop_queue(dev);
2028 local->card_status = CARD_DOING_ACQ;
2029 break;
2030 case JAPAN_CALL_SIGN_RXD:
2031 dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n");
2032 break;
2033 default:
2034 dev_dbg(&link->dev,
2035 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",
2036 rcsindex,
2037 (unsigned int)readb(&prcs->interrupt_id));
2038 break;
2039 }
2040 writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2041 }
2042 clear_interrupt(local);
2043 return IRQ_HANDLED;
2044 } /* ray_interrupt */
2045
2046 /*===========================================================================*/
2047 static void ray_rx(struct net_device *dev, ray_dev_t *local,
2048 struct rcs __iomem *prcs)
2049 {
2050 int rx_len;
2051 unsigned int pkt_addr;
2052 void __iomem *pmsg;
2053 pr_debug("ray_rx process rx packet\n");
2054
2055 /* Calculate address of packet within Rx buffer */
2056 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2057 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2058 /* Length of first packet fragment */
2059 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2060 + readb(&prcs->var.rx_packet.rx_data_length[1]);
2061
2062 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2063 pmsg = local->rmem + pkt_addr;
2064 switch (readb(pmsg)) {
2065 case DATA_TYPE:
2066 pr_debug("ray_rx data type\n");
2067 rx_data(dev, prcs, pkt_addr, rx_len);
2068 break;
2069 case AUTHENTIC_TYPE:
2070 pr_debug("ray_rx authentic type\n");
2071 if (sniffer)
2072 rx_data(dev, prcs, pkt_addr, rx_len);
2073 else
2074 rx_authenticate(local, prcs, pkt_addr, rx_len);
2075 break;
2076 case DEAUTHENTIC_TYPE:
2077 pr_debug("ray_rx deauth type\n");
2078 if (sniffer)
2079 rx_data(dev, prcs, pkt_addr, rx_len);
2080 else
2081 rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2082 break;
2083 case NULL_MSG_TYPE:
2084 pr_debug("ray_cs rx NULL msg\n");
2085 break;
2086 case BEACON_TYPE:
2087 pr_debug("ray_rx beacon type\n");
2088 if (sniffer)
2089 rx_data(dev, prcs, pkt_addr, rx_len);
2090
2091 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr,
2092 rx_len < sizeof(struct beacon_rx) ?
2093 rx_len : sizeof(struct beacon_rx));
2094
2095 local->beacon_rxed = 1;
2096 /* Get the statistics so the card counters never overflow */
2097 ray_get_stats(dev);
2098 break;
2099 default:
2100 pr_debug("ray_cs unknown pkt type %2x\n",
2101 (unsigned int)readb(pmsg));
2102 break;
2103 }
2104
2105 } /* end ray_rx */
2106
2107 /*===========================================================================*/
2108 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
2109 unsigned int pkt_addr, int rx_len)
2110 {
2111 struct sk_buff *skb = NULL;
2112 struct rcs __iomem *prcslink = prcs;
2113 ray_dev_t *local = netdev_priv(dev);
2114 UCHAR *rx_ptr;
2115 int total_len;
2116 int tmp;
2117 #ifdef WIRELESS_SPY
2118 int siglev = local->last_rsl;
2119 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */
2120 #endif
2121
2122 if (!sniffer) {
2123 if (translate) {
2124 /* TBD length needs fixing for translated header */
2125 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2126 rx_len >
2127 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2128 FCS_LEN)) {
2129 pr_debug(
2130 "ray_cs invalid packet length %d received\n",
2131 rx_len);
2132 return;
2133 }
2134 } else { /* encapsulated ethernet */
2135
2136 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2137 rx_len >
2138 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2139 FCS_LEN)) {
2140 pr_debug(
2141 "ray_cs invalid packet length %d received\n",
2142 rx_len);
2143 return;
2144 }
2145 }
2146 }
2147 pr_debug("ray_cs rx_data packet\n");
2148 /* If fragmented packet, verify sizes of fragments add up */
2149 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2150 pr_debug("ray_cs rx'ed fragment\n");
2151 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2152 + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2153 total_len = tmp;
2154 prcslink = prcs;
2155 do {
2156 tmp -=
2157 (readb(&prcslink->var.rx_packet.rx_data_length[0])
2158 << 8)
2159 + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2160 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index)
2161 == 0xFF || tmp < 0)
2162 break;
2163 prcslink = rcs_base(local)
2164 + readb(&prcslink->link_field);
2165 } while (1);
2166
2167 if (tmp < 0) {
2168 pr_debug(
2169 "ray_cs rx_data fragment lengths don't add up\n");
2170 local->stats.rx_dropped++;
2171 release_frag_chain(local, prcs);
2172 return;
2173 }
2174 } else { /* Single unfragmented packet */
2175 total_len = rx_len;
2176 }
2177
2178 skb = dev_alloc_skb(total_len + 5);
2179 if (skb == NULL) {
2180 pr_debug("ray_cs rx_data could not allocate skb\n");
2181 local->stats.rx_dropped++;
2182 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2183 release_frag_chain(local, prcs);
2184 return;
2185 }
2186 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */
2187
2188 pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len,
2189 rx_len);
2190
2191 /************************/
2192 /* Reserve enough room for the whole damn packet. */
2193 rx_ptr = skb_put(skb, total_len);
2194 /* Copy the whole packet to sk_buff */
2195 rx_ptr +=
2196 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2197 /* Get source address */
2198 #ifdef WIRELESS_SPY
2199 skb_copy_from_linear_data_offset(skb,
2200 offsetof(struct mac_header, addr_2),
2201 linksrcaddr, ETH_ALEN);
2202 #endif
2203 /* Now, deal with encapsulation/translation/sniffer */
2204 if (!sniffer) {
2205 if (!translate) {
2206 /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2207 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2208 skb_pull(skb, RX_MAC_HEADER_LENGTH);
2209 } else {
2210 /* Do translation */
2211 untranslate(local, skb, total_len);
2212 }
2213 } else { /* sniffer mode, so just pass whole packet */
2214 }
2215
2216 /************************/
2217 /* Now pick up the rest of the fragments if any */
2218 tmp = 17;
2219 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2220 prcslink = prcs;
2221 pr_debug("ray_cs rx_data in fragment loop\n");
2222 do {
2223 prcslink = rcs_base(local)
2224 +
2225 readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2226 rx_len =
2227 ((readb(&prcslink->var.rx_packet.rx_data_length[0])
2228 << 8)
2229 +
2230 readb(&prcslink->var.rx_packet.rx_data_length[1]))
2231 & RX_BUFF_END;
2232 pkt_addr =
2233 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) <<
2234 8)
2235 + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2236 & RX_BUFF_END;
2237
2238 rx_ptr +=
2239 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2240
2241 } while (tmp-- &&
2242 readb(&prcslink->var.rx_packet.next_frag_rcs_index) !=
2243 0xFF);
2244 release_frag_chain(local, prcs);
2245 }
2246
2247 skb->protocol = eth_type_trans(skb, dev);
2248 netif_rx(skb);
2249 local->stats.rx_packets++;
2250 local->stats.rx_bytes += total_len;
2251
2252 /* Gather signal strength per address */
2253 #ifdef WIRELESS_SPY
2254 /* For the Access Point or the node having started the ad-hoc net
2255 * note : ad-hoc work only in some specific configurations, but we
2256 * kludge in ray_get_wireless_stats... */
2257 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) {
2258 /* Update statistics */
2259 /*local->wstats.qual.qual = none ? */
2260 local->wstats.qual.level = siglev;
2261 /*local->wstats.qual.noise = none ? */
2262 local->wstats.qual.updated = 0x2;
2263 }
2264 /* Now, update the spy stuff */
2265 {
2266 struct iw_quality wstats;
2267 wstats.level = siglev;
2268 /* wstats.noise = none ? */
2269 /* wstats.qual = none ? */
2270 wstats.updated = 0x2;
2271 /* Update spy records */
2272 wireless_spy_update(dev, linksrcaddr, &wstats);
2273 }
2274 #endif /* WIRELESS_SPY */
2275 } /* end rx_data */
2276
2277 /*===========================================================================*/
2278 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2279 {
2280 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH);
2281 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2282 __be16 type = *(__be16 *) psnap->ethertype;
2283 int delta;
2284 struct ethhdr *peth;
2285 UCHAR srcaddr[ADDRLEN];
2286 UCHAR destaddr[ADDRLEN];
2287 static const UCHAR org_bridge[3] = { 0, 0, 0xf8 };
2288 static const UCHAR org_1042[3] = { 0, 0, 0 };
2289
2290 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2291 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2292
2293 #if 0
2294 if {
2295 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
2296 DUMP_PREFIX_NONE, 16, 1,
2297 skb->data, 64, true);
2298 printk(KERN_DEBUG
2299 "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2300 ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
2301 psnap->org[0], psnap->org[1], psnap->org[2]);
2302 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data);
2303 }
2304 #endif
2305
2306 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2307 /* not a snap type so leave it alone */
2308 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2309 psnap->dsap, psnap->ssap, psnap->ctrl);
2310
2311 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2312 peth = (struct ethhdr *)(skb->data + delta);
2313 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2314 } else { /* Its a SNAP */
2315 if (memcmp(psnap->org, org_bridge, 3) == 0) {
2316 /* EtherII and nuke the LLC */
2317 pr_debug("ray_cs untranslate Bridge encap\n");
2318 delta = RX_MAC_HEADER_LENGTH
2319 + sizeof(struct snaphdr_t) - ETH_HLEN;
2320 peth = (struct ethhdr *)(skb->data + delta);
2321 peth->h_proto = type;
2322 } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2323 switch (ntohs(type)) {
2324 case ETH_P_IPX:
2325 case ETH_P_AARP:
2326 pr_debug("ray_cs untranslate RFC IPX/AARP\n");
2327 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2328 peth = (struct ethhdr *)(skb->data + delta);
2329 peth->h_proto =
2330 htons(len - RX_MAC_HEADER_LENGTH);
2331 break;
2332 default:
2333 pr_debug("ray_cs untranslate RFC default\n");
2334 delta = RX_MAC_HEADER_LENGTH +
2335 sizeof(struct snaphdr_t) - ETH_HLEN;
2336 peth = (struct ethhdr *)(skb->data + delta);
2337 peth->h_proto = type;
2338 break;
2339 }
2340 } else {
2341 printk("ray_cs untranslate very confused by packet\n");
2342 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2343 peth = (struct ethhdr *)(skb->data + delta);
2344 peth->h_proto = type;
2345 }
2346 }
2347 /* TBD reserve skb_reserve(skb, delta); */
2348 skb_pull(skb, delta);
2349 pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta,
2350 skb->data);
2351 memcpy(peth->h_dest, destaddr, ADDRLEN);
2352 memcpy(peth->h_source, srcaddr, ADDRLEN);
2353 #if 0
2354 {
2355 int i;
2356 printk(KERN_DEBUG "skb->data after untranslate:");
2357 for (i = 0; i < 64; i++)
2358 printk("%02x ", skb->data[i]);
2359 printk("\n");
2360 }
2361 #endif
2362 } /* end untranslate */
2363
2364 /*===========================================================================*/
2365 /* Copy data from circular receive buffer to PC memory.
2366 * dest = destination address in PC memory
2367 * pkt_addr = source address in receive buffer
2368 * len = length of packet to copy
2369 */
2370 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr,
2371 int length)
2372 {
2373 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2374 if (wrap_bytes <= 0) {
2375 memcpy_fromio(dest, local->rmem + pkt_addr, length);
2376 } else { /* Packet wrapped in circular buffer */
2377
2378 memcpy_fromio(dest, local->rmem + pkt_addr,
2379 length - wrap_bytes);
2380 memcpy_fromio(dest + length - wrap_bytes, local->rmem,
2381 wrap_bytes);
2382 }
2383 return length;
2384 }
2385
2386 /*===========================================================================*/
2387 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs)
2388 {
2389 struct rcs __iomem *prcslink = prcs;
2390 int tmp = 17;
2391 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2392
2393 while (tmp--) {
2394 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2395 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2396 pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n",
2397 rcsindex);
2398 break;
2399 }
2400 prcslink = rcs_base(local) + rcsindex;
2401 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2402 }
2403 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2404 }
2405
2406 /*===========================================================================*/
2407 static void authenticate(ray_dev_t *local)
2408 {
2409 struct pcmcia_device *link = local->finder;
2410 dev_dbg(&link->dev, "ray_cs Starting authentication.\n");
2411 if (!(pcmcia_dev_present(link))) {
2412 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n");
2413 return;
2414 }
2415
2416 del_timer(&local->timer);
2417 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2418 local->timer.function = join_net;
2419 } else {
2420 local->timer.function = authenticate_timeout;
2421 }
2422 local->timer.expires = jiffies + HZ * 2;
2423 add_timer(&local->timer);
2424 local->authentication_state = AWAITING_RESPONSE;
2425 } /* end authenticate */
2426
2427 /*===========================================================================*/
2428 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2429 unsigned int pkt_addr, int rx_len)
2430 {
2431 UCHAR buff[256];
2432 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2433
2434 del_timer(&local->timer);
2435
2436 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2437 /* if we are trying to get authenticated */
2438 if (local->sparm.b4.a_network_type == ADHOC) {
2439 pr_debug("ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n",
2440 msg->var[0], msg->var[1], msg->var[2], msg->var[3],
2441 msg->var[4], msg->var[5]);
2442 if (msg->var[2] == 1) {
2443 pr_debug("ray_cs Sending authentication response.\n");
2444 if (!build_auth_frame
2445 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2446 local->authentication_state = NEED_TO_AUTH;
2447 memcpy(local->auth_id, msg->mac.addr_2,
2448 ADDRLEN);
2449 }
2450 }
2451 } else { /* Infrastructure network */
2452
2453 if (local->authentication_state == AWAITING_RESPONSE) {
2454 /* Verify authentication sequence #2 and success */
2455 if (msg->var[2] == 2) {
2456 if ((msg->var[3] | msg->var[4]) == 0) {
2457 pr_debug("Authentication successful\n");
2458 local->card_status = CARD_AUTH_COMPLETE;
2459 associate(local);
2460 local->authentication_state =
2461 AUTHENTICATED;
2462 } else {
2463 pr_debug("Authentication refused\n");
2464 local->card_status = CARD_AUTH_REFUSED;
2465 join_net(&local->timer);
2466 local->authentication_state =
2467 UNAUTHENTICATED;
2468 }
2469 }
2470 }
2471 }
2472
2473 } /* end rx_authenticate */
2474
2475 /*===========================================================================*/
2476 static void associate(ray_dev_t *local)
2477 {
2478 struct ccs __iomem *pccs;
2479 struct pcmcia_device *link = local->finder;
2480 struct net_device *dev = link->priv;
2481 int ccsindex;
2482 if (!(pcmcia_dev_present(link))) {
2483 dev_dbg(&link->dev, "ray_cs associate - device not present\n");
2484 return;
2485 }
2486 /* If no tx buffers available, return */
2487 if ((ccsindex = get_free_ccs(local)) < 0) {
2488 /* TBD should never be here but... what if we are? */
2489 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n");
2490 return;
2491 }
2492 dev_dbg(&link->dev, "ray_cs Starting association with access point\n");
2493 pccs = ccs_base(local) + ccsindex;
2494 /* fill in the CCS */
2495 writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2496 /* Interrupt the firmware to process the command */
2497 if (interrupt_ecf(local, ccsindex)) {
2498 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
2499 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2500
2501 del_timer(&local->timer);
2502 local->timer.expires = jiffies + HZ * 2;
2503 local->timer.function = join_net;
2504 add_timer(&local->timer);
2505 local->card_status = CARD_ASSOC_FAILED;
2506 return;
2507 }
2508 if (!sniffer)
2509 netif_start_queue(dev);
2510
2511 } /* end associate */
2512
2513 /*===========================================================================*/
2514 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2515 unsigned int pkt_addr, int rx_len)
2516 {
2517 /* UCHAR buff[256];
2518 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2519 */
2520 pr_debug("Deauthentication frame received\n");
2521 local->authentication_state = UNAUTHENTICATED;
2522 /* Need to reauthenticate or rejoin depending on reason code */
2523 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2524 */
2525 }
2526
2527 /*===========================================================================*/
2528 static void clear_interrupt(ray_dev_t *local)
2529 {
2530 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2531 }
2532
2533 /*===========================================================================*/
2534 #ifdef CONFIG_PROC_FS
2535 #define MAXDATA (PAGE_SIZE - 80)
2536
2537 static const char *card_status[] = {
2538 "Card inserted - uninitialized", /* 0 */
2539 "Card not downloaded", /* 1 */
2540 "Waiting for download parameters", /* 2 */
2541 "Card doing acquisition", /* 3 */
2542 "Acquisition complete", /* 4 */
2543 "Authentication complete", /* 5 */
2544 "Association complete", /* 6 */
2545 "???", "???", "???", "???", /* 7 8 9 10 undefined */
2546 "Card init error", /* 11 */
2547 "Download parameters error", /* 12 */
2548 "???", /* 13 */
2549 "Acquisition failed", /* 14 */
2550 "Authentication refused", /* 15 */
2551 "Association failed" /* 16 */
2552 };
2553
2554 static const char *nettype[] = { "Adhoc", "Infra " };
2555 static const char *framing[] = { "Encapsulation", "Translation" }
2556
2557 ;
2558 /*===========================================================================*/
2559 static int ray_cs_proc_show(struct seq_file *m, void *v)
2560 {
2561 /* Print current values which are not available via other means
2562 * eg ifconfig
2563 */
2564 int i;
2565 struct pcmcia_device *link;
2566 struct net_device *dev;
2567 ray_dev_t *local;
2568 UCHAR *p;
2569 struct freq_hop_element *pfh;
2570 UCHAR c[33];
2571
2572 link = this_device;
2573 if (!link)
2574 return 0;
2575 dev = (struct net_device *)link->priv;
2576 if (!dev)
2577 return 0;
2578 local = netdev_priv(dev);
2579 if (!local)
2580 return 0;
2581
2582 seq_puts(m, "Raylink Wireless LAN driver status\n");
2583 seq_printf(m, "%s\n", rcsid);
2584 /* build 4 does not report version, and field is 0x55 after memtest */
2585 seq_puts(m, "Firmware version = ");
2586 if (local->fw_ver == 0x55)
2587 seq_puts(m, "4 - Use dump_cis for more details\n");
2588 else
2589 seq_printf(m, "%2d.%02d.%02d\n",
2590 local->fw_ver, local->fw_bld, local->fw_var);
2591
2592 for (i = 0; i < 32; i++)
2593 c[i] = local->sparm.b5.a_current_ess_id[i];
2594 c[32] = 0;
2595 seq_printf(m, "%s network ESSID = \"%s\"\n",
2596 nettype[local->sparm.b5.a_network_type], c);
2597
2598 p = local->bss_id;
2599 seq_printf(m, "BSSID = %pM\n", p);
2600
2601 seq_printf(m, "Country code = %d\n",
2602 local->sparm.b5.a_curr_country_code);
2603
2604 i = local->card_status;
2605 if (i < 0)
2606 i = 10;
2607 if (i > 16)
2608 i = 10;
2609 seq_printf(m, "Card status = %s\n", card_status[i]);
2610
2611 seq_printf(m, "Framing mode = %s\n", framing[translate]);
2612
2613 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl);
2614
2615 if (local->beacon_rxed) {
2616 /* Pull some fields out of last beacon received */
2617 seq_printf(m, "Beacon Interval = %d Kus\n",
2618 local->last_bcn.beacon_intvl[0]
2619 + 256 * local->last_bcn.beacon_intvl[1]);
2620
2621 p = local->last_bcn.elements;
2622 if (p[0] == C_ESSID_ELEMENT_ID)
2623 p += p[1] + 2;
2624 else {
2625 seq_printf(m,
2626 "Parse beacon failed at essid element id = %d\n",
2627 p[0]);
2628 return 0;
2629 }
2630
2631 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2632 seq_puts(m, "Supported rate codes = ");
2633 for (i = 2; i < p[1] + 2; i++)
2634 seq_printf(m, "0x%02x ", p[i]);
2635 seq_putc(m, '\n');
2636 p += p[1] + 2;
2637 } else {
2638 seq_puts(m, "Parse beacon failed at rates element\n");
2639 return 0;
2640 }
2641
2642 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2643 pfh = (struct freq_hop_element *)p;
2644 seq_printf(m, "Hop dwell = %d Kus\n",
2645 pfh->dwell_time[0] +
2646 256 * pfh->dwell_time[1]);
2647 seq_printf(m, "Hop set = %d\n",
2648 pfh->hop_set);
2649 seq_printf(m, "Hop pattern = %d\n",
2650 pfh->hop_pattern);
2651 seq_printf(m, "Hop index = %d\n",
2652 pfh->hop_index);
2653 p += p[1] + 2;
2654 } else {
2655 seq_puts(m,
2656 "Parse beacon failed at FH param element\n");
2657 return 0;
2658 }
2659 } else {
2660 seq_puts(m, "No beacons received\n");
2661 }
2662 return 0;
2663 }
2664 #endif
2665 /*===========================================================================*/
2666 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2667 {
2668 int addr;
2669 struct ccs __iomem *pccs;
2670 struct tx_msg __iomem *ptx;
2671 int ccsindex;
2672
2673 /* If no tx buffers available, return */
2674 if ((ccsindex = get_free_tx_ccs(local)) < 0) {
2675 pr_debug("ray_cs send authenticate - No free tx ccs\n");
2676 return -1;
2677 }
2678
2679 pccs = ccs_base(local) + ccsindex;
2680
2681 /* Address in card space */
2682 addr = TX_BUF_BASE + (ccsindex << 11);
2683 /* fill in the CCS */
2684 writeb(CCS_TX_REQUEST, &pccs->cmd);
2685 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2686 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2687 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2688 writeb(TX_AUTHENTICATE_LENGTH_LSB,
2689 pccs->var.tx_request.tx_data_length + 1);
2690 writeb(0, &pccs->var.tx_request.pow_sav_mode);
2691
2692 ptx = local->sram + addr;
2693 /* fill in the mac header */
2694 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2695 writeb(0, &ptx->mac.frame_ctl_2);
2696
2697 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2698 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2699 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2700
2701 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2702 memset_io(ptx->var, 0, 6);
2703 writeb(auth_type & 0xff, ptx->var + 2);
2704
2705 /* Interrupt the firmware to process the command */
2706 if (interrupt_ecf(local, ccsindex)) {
2707 pr_debug(
2708 "ray_cs send authentication request failed - ECF not ready for intr\n");
2709 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2710 return -1;
2711 }
2712 return 0;
2713 } /* End build_auth_frame */
2714
2715 /*===========================================================================*/
2716 #ifdef CONFIG_PROC_FS
2717 static ssize_t ray_cs_essid_proc_write(struct file *file,
2718 const char __user *buffer, size_t count, loff_t *pos)
2719 {
2720 static char proc_essid[33];
2721 unsigned int len = count;
2722
2723 if (len > 32)
2724 len = 32;
2725 memset(proc_essid, 0, 33);
2726 if (copy_from_user(proc_essid, buffer, len))
2727 return -EFAULT;
2728 essid = proc_essid;
2729 return count;
2730 }
2731
2732 static const struct file_operations ray_cs_essid_proc_fops = {
2733 .owner = THIS_MODULE,
2734 .write = ray_cs_essid_proc_write,
2735 .llseek = noop_llseek,
2736 };
2737
2738 static ssize_t int_proc_write(struct file *file, const char __user *buffer,
2739 size_t count, loff_t *pos)
2740 {
2741 static char proc_number[10];
2742 char *p;
2743 int nr, len;
2744
2745 if (!count)
2746 return 0;
2747
2748 if (count > 9)
2749 return -EINVAL;
2750 if (copy_from_user(proc_number, buffer, count))
2751 return -EFAULT;
2752 p = proc_number;
2753 nr = 0;
2754 len = count;
2755 do {
2756 unsigned int c = *p - '0';
2757 if (c > 9)
2758 return -EINVAL;
2759 nr = nr * 10 + c;
2760 p++;
2761 } while (--len);
2762 *(int *)PDE_DATA(file_inode(file)) = nr;
2763 return count;
2764 }
2765
2766 static const struct file_operations int_proc_fops = {
2767 .owner = THIS_MODULE,
2768 .write = int_proc_write,
2769 .llseek = noop_llseek,
2770 };
2771 #endif
2772
2773 static const struct pcmcia_device_id ray_ids[] = {
2774 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2775 PCMCIA_DEVICE_NULL,
2776 };
2777
2778 MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2779
2780 static struct pcmcia_driver ray_driver = {
2781 .owner = THIS_MODULE,
2782 .name = "ray_cs",
2783 .probe = ray_probe,
2784 .remove = ray_detach,
2785 .id_table = ray_ids,
2786 .suspend = ray_suspend,
2787 .resume = ray_resume,
2788 };
2789
2790 static int __init init_ray_cs(void)
2791 {
2792 int rc;
2793
2794 pr_debug("%s\n", rcsid);
2795 rc = pcmcia_register_driver(&ray_driver);
2796 pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n",
2797 rc);
2798 if (rc)
2799 return rc;
2800
2801 #ifdef CONFIG_PROC_FS
2802 proc_mkdir("driver/ray_cs", NULL);
2803
2804 proc_create_single("driver/ray_cs/ray_cs", 0, NULL, ray_cs_proc_show);
2805 proc_create("driver/ray_cs/essid", 0200, NULL, &ray_cs_essid_proc_fops);
2806 proc_create_data("driver/ray_cs/net_type", 0200, NULL, &int_proc_fops,
2807 &net_type);
2808 proc_create_data("driver/ray_cs/translate", 0200, NULL, &int_proc_fops,
2809 &translate);
2810 #endif
2811 if (translate != 0)
2812 translate = 1;
2813 return 0;
2814 } /* init_ray_cs */
2815
2816 /*===========================================================================*/
2817
2818 static void __exit exit_ray_cs(void)
2819 {
2820 pr_debug("ray_cs: cleanup_module\n");
2821
2822 #ifdef CONFIG_PROC_FS
2823 remove_proc_subtree("driver/ray_cs", NULL);
2824 #endif
2825
2826 pcmcia_unregister_driver(&ray_driver);
2827 } /* exit_ray_cs */
2828
2829 module_init(init_ray_cs);
2830 module_exit(exit_ray_cs);
2831
2832 /*===========================================================================*/
Linux with added FPC-III support