1 /*=============================================================================
2 *
3 * A PCMCIA client driver for the Raylink wireless LAN card.
4 * The starting point for this module was the skeleton.c in the
5 * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net
6 *
7 *
8 * Copyright (c) 1998 Corey Thomas (corey@world.std.com)
9 *
10 * This driver is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 only of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * It is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
22 *
23 * Changes:
24 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
25 * - reorganize kmallocs in ray_attach, checking all for failure
26 * and releasing the previous allocations if one fails
27 *
28 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003
29 * - Audit copy_to_user in ioctl(SIOCGIWESSID)
30 *
31 =============================================================================*/
32
33 #include <linux/module.h>
34 #include <linux/kernel.h>
35 #include <linux/proc_fs.h>
36 #include <linux/ptrace.h>
37 #include <linux/seq_file.h>
38 #include <linux/string.h>
39 #include <linux/timer.h>
40 #include <linux/init.h>
41 #include <linux/netdevice.h>
42 #include <linux/etherdevice.h>
43 #include <linux/if_arp.h>
44 #include <linux/ioport.h>
45 #include <linux/skbuff.h>
46 #include <linux/ieee80211.h>
47
48 #include <pcmcia/cistpl.h>
49 #include <pcmcia/cisreg.h>
50 #include <pcmcia/ds.h>
51
52 #include <linux/wireless.h>
53 #include <net/iw_handler.h>
54
55 #include <asm/io.h>
56 #include <asm/byteorder.h>
57 #include <asm/uaccess.h>
58
59 /* Warning : these stuff will slow down the driver... */
60 #define WIRELESS_SPY /* Enable spying addresses */
61 /* Definitions we need for spy */
62 typedef struct iw_statistics iw_stats;
63 typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */
64
65 #include "rayctl.h"
66 #include "ray_cs.h"
67
68
69 /** Prototypes based on PCMCIA skeleton driver *******************************/
70 static int ray_config(struct pcmcia_device *link);
71 static void ray_release(struct pcmcia_device *link);
72 static void ray_detach(struct pcmcia_device *p_dev);
73
74 /***** Prototypes indicated by device structure ******************************/
75 static int ray_dev_close(struct net_device *dev);
76 static int ray_dev_config(struct net_device *dev, struct ifmap *map);
77 static struct net_device_stats *ray_get_stats(struct net_device *dev);
78 static int ray_dev_init(struct net_device *dev);
79
80 static int ray_open(struct net_device *dev);
81 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
82 struct net_device *dev);
83 static void set_multicast_list(struct net_device *dev);
84 static void ray_update_multi_list(struct net_device *dev, int all);
85 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
86 unsigned char *data, int len);
87 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
88 UCHAR msg_type, unsigned char *data);
89 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
90 static iw_stats *ray_get_wireless_stats(struct net_device *dev);
91 static const struct iw_handler_def ray_handler_def;
92
93 /***** Prototypes for raylink functions **************************************/
94 static void authenticate(ray_dev_t *local);
95 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
96 static void authenticate_timeout(u_long);
97 static int get_free_ccs(ray_dev_t *local);
98 static int get_free_tx_ccs(ray_dev_t *local);
99 static void init_startup_params(ray_dev_t *local);
100 static int parse_addr(char *in_str, UCHAR *out);
101 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type);
102 static int ray_init(struct net_device *dev);
103 static int interrupt_ecf(ray_dev_t *local, int ccs);
104 static void ray_reset(struct net_device *dev);
105 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
106 static void verify_dl_startup(u_long);
107
108 /* Prototypes for interrpt time functions **********************************/
109 static irqreturn_t ray_interrupt(int reg, void *dev_id);
110 static void clear_interrupt(ray_dev_t *local);
111 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
112 unsigned int pkt_addr, int rx_len);
113 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
114 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
115 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
116 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
117 unsigned int pkt_addr, int rx_len);
118 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
119 unsigned int pkt_addr, int rx_len);
120 static void associate(ray_dev_t *local);
121
122 /* Card command functions */
123 static int dl_startup_params(struct net_device *dev);
124 static void join_net(u_long local);
125 static void start_net(u_long local);
126 /* void start_net(ray_dev_t *local); */
127
128 /*===========================================================================*/
129 /* Parameters that can be set with 'insmod' */
130
131 /* ADHOC=0, Infrastructure=1 */
132 static int net_type = ADHOC;
133
134 /* Hop dwell time in Kus (1024 us units defined by 802.11) */
135 static int hop_dwell = 128;
136
137 /* Beacon period in Kus */
138 static int beacon_period = 256;
139
140 /* power save mode (0 = off, 1 = save power) */
141 static int psm;
142
143 /* String for network's Extended Service Set ID. 32 Characters max */
144 static char *essid;
145
146 /* Default to encapsulation unless translation requested */
147 static bool translate = 1;
148
149 static int country = USA;
150
151 static int sniffer;
152
153 static int bc;
154
155 /* 48 bit physical card address if overriding card's real physical
156 * address is required. Since IEEE 802.11 addresses are 48 bits
157 * like ethernet, an int can't be used, so a string is used. To
158 * allow use of addresses starting with a decimal digit, the first
159 * character must be a letter and will be ignored. This letter is
160 * followed by up to 12 hex digits which are the address. If less
161 * than 12 digits are used, the address will be left filled with 0's.
162 * Note that bit 0 of the first byte is the broadcast bit, and evil
163 * things will happen if it is not 0 in a card address.
164 */
165 static char *phy_addr = NULL;
166
167 static unsigned int ray_mem_speed = 500;
168
169 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
170 static struct pcmcia_device *this_device = NULL;
171
172 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
173 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
174 MODULE_LICENSE("GPL");
175
176 module_param(net_type, int, 0);
177 module_param(hop_dwell, int, 0);
178 module_param(beacon_period, int, 0);
179 module_param(psm, int, 0);
180 module_param(essid, charp, 0);
181 module_param(translate, bool, 0);
182 module_param(country, int, 0);
183 module_param(sniffer, int, 0);
184 module_param(bc, int, 0);
185 module_param(phy_addr, charp, 0);
186 module_param(ray_mem_speed, int, 0);
187
188 static const UCHAR b5_default_startup_parms[] = {
189 0, 0, /* Adhoc station */
190 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
191 0, 0, 0, 0, 0, 0, 0, 0,
192 0, 0, 0, 0, 0, 0, 0, 0,
193 0, 0, 0, 0, 0, 0, 0, 0,
194 1, 0, /* Active scan, CA Mode */
195 0, 0, 0, 0, 0, 0, /* No default MAC addr */
196 0x7f, 0xff, /* Frag threshold */
197 0x00, 0x80, /* Hop time 128 Kus */
198 0x01, 0x00, /* Beacon period 256 Kus */
199 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
200 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */
201 0x7f, 0xff, /* RTS threshold */
202 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
203 0x05, /* assoc resp timeout thresh */
204 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */
205 0, /* Promiscuous mode */
206 0x0c, 0x0bd, /* Unique word */
207 0x32, /* Slot time */
208 0xff, 0xff, /* roam-low snr, low snr count */
209 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
210 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */
211 /* b4 - b5 differences start here */
212 0x00, 0x3f, /* CW max */
213 0x00, 0x0f, /* CW min */
214 0x04, 0x08, /* Noise gain, limit offset */
215 0x28, 0x28, /* det rssi, med busy offsets */
216 7, /* det sync thresh */
217 0, 2, 2, /* test mode, min, max */
218 0, /* allow broadcast SSID probe resp */
219 0, 0, /* privacy must start, can join */
220 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */
221 };
222
223 static const UCHAR b4_default_startup_parms[] = {
224 0, 0, /* Adhoc station */
225 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
226 0, 0, 0, 0, 0, 0, 0, 0,
227 0, 0, 0, 0, 0, 0, 0, 0,
228 0, 0, 0, 0, 0, 0, 0, 0,
229 1, 0, /* Active scan, CA Mode */
230 0, 0, 0, 0, 0, 0, /* No default MAC addr */
231 0x7f, 0xff, /* Frag threshold */
232 0x02, 0x00, /* Hop time */
233 0x00, 0x01, /* Beacon period */
234 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
235 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */
236 0x7f, 0xff, /* RTS threshold */
237 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
238 0x05, /* assoc resp timeout thresh */
239 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */
240 0, /* Promiscuous mode */
241 0x0c, 0x0bd, /* Unique word */
242 0x4e, /* Slot time (TBD seems wrong) */
243 0xff, 0xff, /* roam-low snr, low snr count */
244 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
245 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */
246 /* b4 - b5 differences start here */
247 0x3f, 0x0f, /* CW max, min */
248 0x04, 0x08, /* Noise gain, limit offset */
249 0x28, 0x28, /* det rssi, med busy offsets */
250 7, /* det sync thresh */
251 0, 2, 2 /* test mode, min, max */
252 };
253
254 /*===========================================================================*/
255 static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 };
256
257 static const char hop_pattern_length[] = { 1,
258 USA_HOP_MOD, EUROPE_HOP_MOD,
259 JAPAN_HOP_MOD, KOREA_HOP_MOD,
260 SPAIN_HOP_MOD, FRANCE_HOP_MOD,
261 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
262 JAPAN_TEST_HOP_MOD
263 };
264
265 static const char rcsid[] =
266 "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
267
268 static const struct net_device_ops ray_netdev_ops = {
269 .ndo_init = ray_dev_init,
270 .ndo_open = ray_open,
271 .ndo_stop = ray_dev_close,
272 .ndo_start_xmit = ray_dev_start_xmit,
273 .ndo_set_config = ray_dev_config,
274 .ndo_get_stats = ray_get_stats,
275 .ndo_set_rx_mode = set_multicast_list,
276 .ndo_change_mtu = eth_change_mtu,
277 .ndo_set_mac_address = eth_mac_addr,
278 .ndo_validate_addr = eth_validate_addr,
279 };
280
ray_probe(struct pcmcia_device * p_dev)281 static int ray_probe(struct pcmcia_device *p_dev)
282 {
283 ray_dev_t *local;
284 struct net_device *dev;
285
286 dev_dbg(&p_dev->dev, "ray_attach()\n");
287
288 /* Allocate space for private device-specific data */
289 dev = alloc_etherdev(sizeof(ray_dev_t));
290 if (!dev)
291 goto fail_alloc_dev;
292
293 local = netdev_priv(dev);
294 local->finder = p_dev;
295
296 /* The io structure describes IO port mapping. None used here */
297 p_dev->resource[0]->end = 0;
298 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
299
300 /* General socket configuration */
301 p_dev->config_flags |= CONF_ENABLE_IRQ;
302 p_dev->config_index = 1;
303
304 p_dev->priv = dev;
305
306 local->finder = p_dev;
307 local->card_status = CARD_INSERTED;
308 local->authentication_state = UNAUTHENTICATED;
309 local->num_multi = 0;
310 dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n",
311 p_dev, dev, local, &ray_interrupt);
312
313 /* Raylink entries in the device structure */
314 dev->netdev_ops = &ray_netdev_ops;
315 dev->wireless_handlers = &ray_handler_def;
316 #ifdef WIRELESS_SPY
317 local->wireless_data.spy_data = &local->spy_data;
318 dev->wireless_data = &local->wireless_data;
319 #endif /* WIRELESS_SPY */
320
321
322 dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n");
323 netif_stop_queue(dev);
324
325 init_timer(&local->timer);
326
327 this_device = p_dev;
328 return ray_config(p_dev);
329
330 fail_alloc_dev:
331 return -ENOMEM;
332 } /* ray_attach */
333
ray_detach(struct pcmcia_device * link)334 static void ray_detach(struct pcmcia_device *link)
335 {
336 struct net_device *dev;
337 ray_dev_t *local;
338
339 dev_dbg(&link->dev, "ray_detach\n");
340
341 this_device = NULL;
342 dev = link->priv;
343
344 ray_release(link);
345
346 local = netdev_priv(dev);
347 del_timer(&local->timer);
348
349 if (link->priv) {
350 unregister_netdev(dev);
351 free_netdev(dev);
352 }
353 dev_dbg(&link->dev, "ray_cs ray_detach ending\n");
354 } /* ray_detach */
355
356 #define MAX_TUPLE_SIZE 128
ray_config(struct pcmcia_device * link)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
ccs_base(ray_dev_t * dev)452 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
453 {
454 return dev->sram + CCS_BASE;
455 }
456
rcs_base(ray_dev_t * dev)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 /*===========================================================================*/
ray_init(struct net_device * dev)470 static int ray_init(struct net_device *dev)
471 {
472 int i;
473 UCHAR *p;
474 struct ccs __iomem *pccs;
475 ray_dev_t *local = netdev_priv(dev);
476 struct pcmcia_device *link = local->finder;
477 dev_dbg(&link->dev, "ray_init(0x%p)\n", dev);
478 if (!(pcmcia_dev_present(link))) {
479 dev_dbg(&link->dev, "ray_init - device not present\n");
480 return -1;
481 }
482
483 local->net_type = net_type;
484 local->sta_type = TYPE_STA;
485
486 /* Copy the startup results to local memory */
487 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,
488 sizeof(struct startup_res_6));
489
490 /* Check Power up test status and get mac address from card */
491 if (local->startup_res.startup_word != 0x80) {
492 printk(KERN_INFO "ray_init ERROR card status = %2x\n",
493 local->startup_res.startup_word);
494 local->card_status = CARD_INIT_ERROR;
495 return -1;
496 }
497
498 local->fw_ver = local->startup_res.firmware_version[0];
499 local->fw_bld = local->startup_res.firmware_version[1];
500 local->fw_var = local->startup_res.firmware_version[2];
501 dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver,
502 local->fw_bld);
503
504 local->tib_length = 0x20;
505 if ((local->fw_ver == 5) && (local->fw_bld >= 30))
506 local->tib_length = local->startup_res.tib_length;
507 dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length);
508 /* Initialize CCS's to buffer free state */
509 pccs = ccs_base(local);
510 for (i = 0; i < NUMBER_OF_CCS; i++) {
511 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
512 }
513 init_startup_params(local);
514
515 /* copy mac address to startup parameters */
516 if (parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) {
517 p = local->sparm.b4.a_mac_addr;
518 } else {
519 memcpy(&local->sparm.b4.a_mac_addr,
520 &local->startup_res.station_addr, ADDRLEN);
521 p = local->sparm.b4.a_mac_addr;
522 }
523
524 clear_interrupt(local); /* Clear any interrupt from the card */
525 local->card_status = CARD_AWAITING_PARAM;
526 dev_dbg(&link->dev, "ray_init ending\n");
527 return 0;
528 } /* ray_init */
529
530 /*===========================================================================*/
531 /* Download startup parameters to the card and command it to read them */
dl_startup_params(struct net_device * dev)532 static int dl_startup_params(struct net_device *dev)
533 {
534 int ccsindex;
535 ray_dev_t *local = netdev_priv(dev);
536 struct ccs __iomem *pccs;
537 struct pcmcia_device *link = local->finder;
538
539 dev_dbg(&link->dev, "dl_startup_params entered\n");
540 if (!(pcmcia_dev_present(link))) {
541 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n");
542 return -1;
543 }
544
545 /* Copy parameters to host to ECF area */
546 if (local->fw_ver == 0x55)
547 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
548 sizeof(struct b4_startup_params));
549 else
550 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
551 sizeof(struct b5_startup_params));
552
553 /* Fill in the CCS fields for the ECF */
554 if ((ccsindex = get_free_ccs(local)) < 0)
555 return -1;
556 local->dl_param_ccs = ccsindex;
557 pccs = ccs_base(local) + ccsindex;
558 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
559 dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n",
560 local->dl_param_ccs);
561 /* Interrupt the firmware to process the command */
562 if (interrupt_ecf(local, ccsindex)) {
563 printk(KERN_INFO "ray dl_startup_params failed - "
564 "ECF not ready for intr\n");
565 local->card_status = CARD_DL_PARAM_ERROR;
566 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
567 return -2;
568 }
569 local->card_status = CARD_DL_PARAM;
570 /* Start kernel timer to wait for dl startup to complete. */
571 local->timer.expires = jiffies + HZ / 2;
572 local->timer.data = (long)local;
573 local->timer.function = verify_dl_startup;
574 add_timer(&local->timer);
575 dev_dbg(&link->dev,
576 "ray_cs dl_startup_params started timer for verify_dl_startup\n");
577 return 0;
578 } /* dl_startup_params */
579
580 /*===========================================================================*/
init_startup_params(ray_dev_t * local)581 static void init_startup_params(ray_dev_t *local)
582 {
583 int i;
584
585 if (country > JAPAN_TEST)
586 country = USA;
587 else if (country < USA)
588 country = USA;
589 /* structure for hop time and beacon period is defined here using
590 * New 802.11D6.1 format. Card firmware is still using old format
591 * until version 6.
592 * Before After
593 * a_hop_time ms byte a_hop_time ms byte
594 * a_hop_time 2s byte a_hop_time ls byte
595 * a_hop_time ls byte a_beacon_period ms byte
596 * a_beacon_period a_beacon_period ls byte
597 *
598 * a_hop_time = uS a_hop_time = KuS
599 * a_beacon_period = hops a_beacon_period = KuS
600 *//* 64ms = 010000 */
601 if (local->fw_ver == 0x55) {
602 memcpy((UCHAR *) &local->sparm.b4, b4_default_startup_parms,
603 sizeof(struct b4_startup_params));
604 /* Translate sane kus input values to old build 4/5 format */
605 /* i = hop time in uS truncated to 3 bytes */
606 i = (hop_dwell * 1024) & 0xffffff;
607 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
608 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
609 local->sparm.b4.a_beacon_period[0] = 0;
610 local->sparm.b4.a_beacon_period[1] =
611 ((beacon_period / hop_dwell) - 1) & 0xff;
612 local->sparm.b4.a_curr_country_code = country;
613 local->sparm.b4.a_hop_pattern_length =
614 hop_pattern_length[(int)country] - 1;
615 if (bc) {
616 local->sparm.b4.a_ack_timeout = 0x50;
617 local->sparm.b4.a_sifs = 0x3f;
618 }
619 } else { /* Version 5 uses real kus values */
620 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms,
621 sizeof(struct b5_startup_params));
622
623 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
624 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
625 local->sparm.b5.a_beacon_period[0] =
626 (beacon_period >> 8) & 0xff;
627 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
628 if (psm)
629 local->sparm.b5.a_power_mgt_state = 1;
630 local->sparm.b5.a_curr_country_code = country;
631 local->sparm.b5.a_hop_pattern_length =
632 hop_pattern_length[(int)country];
633 }
634
635 local->sparm.b4.a_network_type = net_type & 0x01;
636 local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
637
638 if (essid != NULL)
639 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
640 } /* init_startup_params */
641
642 /*===========================================================================*/
verify_dl_startup(u_long data)643 static void verify_dl_startup(u_long data)
644 {
645 ray_dev_t *local = (ray_dev_t *) data;
646 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
647 UCHAR status;
648 struct pcmcia_device *link = local->finder;
649
650 if (!(pcmcia_dev_present(link))) {
651 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n");
652 return;
653 }
654 #if 0
655 {
656 int i;
657 printk(KERN_DEBUG
658 "verify_dl_startup parameters sent via ccs %d:\n",
659 local->dl_param_ccs);
660 for (i = 0; i < sizeof(struct b5_startup_params); i++) {
661 printk(" %2x",
662 (unsigned int)readb(local->sram +
663 HOST_TO_ECF_BASE + i));
664 }
665 printk("\n");
666 }
667 #endif
668
669 status = readb(&pccs->buffer_status);
670 if (status != CCS_BUFFER_FREE) {
671 printk(KERN_INFO
672 "Download startup params failed. Status = %d\n",
673 status);
674 local->card_status = CARD_DL_PARAM_ERROR;
675 return;
676 }
677 if (local->sparm.b4.a_network_type == ADHOC)
678 start_net((u_long) local);
679 else
680 join_net((u_long) local);
681 } /* end verify_dl_startup */
682
683 /*===========================================================================*/
684 /* Command card to start a network */
start_net(u_long data)685 static void start_net(u_long data)
686 {
687 ray_dev_t *local = (ray_dev_t *) data;
688 struct ccs __iomem *pccs;
689 int ccsindex;
690 struct pcmcia_device *link = local->finder;
691 if (!(pcmcia_dev_present(link))) {
692 dev_dbg(&link->dev, "ray_cs start_net - device not present\n");
693 return;
694 }
695 /* Fill in the CCS fields for the ECF */
696 if ((ccsindex = get_free_ccs(local)) < 0)
697 return;
698 pccs = ccs_base(local) + ccsindex;
699 writeb(CCS_START_NETWORK, &pccs->cmd);
700 writeb(0, &pccs->var.start_network.update_param);
701 /* Interrupt the firmware to process the command */
702 if (interrupt_ecf(local, ccsindex)) {
703 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n");
704 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
705 return;
706 }
707 local->card_status = CARD_DOING_ACQ;
708 } /* end start_net */
709
710 /*===========================================================================*/
711 /* Command card to join a network */
join_net(u_long data)712 static void join_net(u_long data)
713 {
714 ray_dev_t *local = (ray_dev_t *) data;
715
716 struct ccs __iomem *pccs;
717 int ccsindex;
718 struct pcmcia_device *link = local->finder;
719
720 if (!(pcmcia_dev_present(link))) {
721 dev_dbg(&link->dev, "ray_cs join_net - device not present\n");
722 return;
723 }
724 /* Fill in the CCS fields for the ECF */
725 if ((ccsindex = get_free_ccs(local)) < 0)
726 return;
727 pccs = ccs_base(local) + ccsindex;
728 writeb(CCS_JOIN_NETWORK, &pccs->cmd);
729 writeb(0, &pccs->var.join_network.update_param);
730 writeb(0, &pccs->var.join_network.net_initiated);
731 /* Interrupt the firmware to process the command */
732 if (interrupt_ecf(local, ccsindex)) {
733 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n");
734 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
735 return;
736 }
737 local->card_status = CARD_DOING_ACQ;
738 }
739
740
ray_release(struct pcmcia_device * link)741 static void ray_release(struct pcmcia_device *link)
742 {
743 struct net_device *dev = link->priv;
744 ray_dev_t *local = netdev_priv(dev);
745
746 dev_dbg(&link->dev, "ray_release\n");
747
748 del_timer(&local->timer);
749
750 iounmap(local->sram);
751 iounmap(local->rmem);
752 iounmap(local->amem);
753 pcmcia_disable_device(link);
754
755 dev_dbg(&link->dev, "ray_release ending\n");
756 }
757
ray_suspend(struct pcmcia_device * link)758 static int ray_suspend(struct pcmcia_device *link)
759 {
760 struct net_device *dev = link->priv;
761
762 if (link->open)
763 netif_device_detach(dev);
764
765 return 0;
766 }
767
ray_resume(struct pcmcia_device * link)768 static int ray_resume(struct pcmcia_device *link)
769 {
770 struct net_device *dev = link->priv;
771
772 if (link->open) {
773 ray_reset(dev);
774 netif_device_attach(dev);
775 }
776
777 return 0;
778 }
779
780 /*===========================================================================*/
ray_dev_init(struct net_device * dev)781 static int ray_dev_init(struct net_device *dev)
782 {
783 #ifdef RAY_IMMEDIATE_INIT
784 int i;
785 #endif /* RAY_IMMEDIATE_INIT */
786 ray_dev_t *local = netdev_priv(dev);
787 struct pcmcia_device *link = local->finder;
788
789 dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev);
790 if (!(pcmcia_dev_present(link))) {
791 dev_dbg(&link->dev, "ray_dev_init - device not present\n");
792 return -1;
793 }
794 #ifdef RAY_IMMEDIATE_INIT
795 /* Download startup parameters */
796 if ((i = dl_startup_params(dev)) < 0) {
797 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
798 "returns 0x%x\n", i);
799 return -1;
800 }
801 #else /* RAY_IMMEDIATE_INIT */
802 /* Postpone the card init so that we can still configure the card,
803 * for example using the Wireless Extensions. The init will happen
804 * in ray_open() - Jean II */
805 dev_dbg(&link->dev,
806 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
807 local->card_status);
808 #endif /* RAY_IMMEDIATE_INIT */
809
810 /* copy mac and broadcast addresses to linux device */
811 memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
812 memset(dev->broadcast, 0xff, ETH_ALEN);
813
814 dev_dbg(&link->dev, "ray_dev_init ending\n");
815 return 0;
816 }
817
818 /*===========================================================================*/
ray_dev_config(struct net_device * dev,struct ifmap * map)819 static int ray_dev_config(struct net_device *dev, struct ifmap *map)
820 {
821 ray_dev_t *local = netdev_priv(dev);
822 struct pcmcia_device *link = local->finder;
823 /* Dummy routine to satisfy device structure */
824 dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map);
825 if (!(pcmcia_dev_present(link))) {
826 dev_dbg(&link->dev, "ray_dev_config - device not present\n");
827 return -1;
828 }
829
830 return 0;
831 }
832
833 /*===========================================================================*/
ray_dev_start_xmit(struct sk_buff * skb,struct net_device * dev)834 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
835 struct net_device *dev)
836 {
837 ray_dev_t *local = netdev_priv(dev);
838 struct pcmcia_device *link = local->finder;
839 short length = skb->len;
840
841 if (!pcmcia_dev_present(link)) {
842 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n");
843 dev_kfree_skb(skb);
844 return NETDEV_TX_OK;
845 }
846
847 dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
848 if (local->authentication_state == NEED_TO_AUTH) {
849 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n");
850 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
851 local->authentication_state = AUTHENTICATED;
852 netif_stop_queue(dev);
853 return NETDEV_TX_BUSY;
854 }
855 }
856
857 if (length < ETH_ZLEN) {
858 if (skb_padto(skb, ETH_ZLEN))
859 return NETDEV_TX_OK;
860 length = ETH_ZLEN;
861 }
862 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) {
863 case XMIT_NO_CCS:
864 case XMIT_NEED_AUTH:
865 netif_stop_queue(dev);
866 return NETDEV_TX_BUSY;
867 case XMIT_NO_INTR:
868 case XMIT_MSG_BAD:
869 case XMIT_OK:
870 default:
871 dev_kfree_skb(skb);
872 }
873
874 return NETDEV_TX_OK;
875 } /* ray_dev_start_xmit */
876
877 /*===========================================================================*/
ray_hw_xmit(unsigned char * data,int len,struct net_device * dev,UCHAR msg_type)878 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
879 UCHAR msg_type)
880 {
881 ray_dev_t *local = netdev_priv(dev);
882 struct ccs __iomem *pccs;
883 int ccsindex;
884 int offset;
885 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */
886 short int addr; /* Address of xmit buffer in card space */
887
888 pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev);
889 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) {
890 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",
891 len);
892 return XMIT_MSG_BAD;
893 }
894 switch (ccsindex = get_free_tx_ccs(local)) {
895 case ECCSBUSY:
896 pr_debug("ray_hw_xmit tx_ccs table busy\n");
897 case ECCSFULL:
898 pr_debug("ray_hw_xmit No free tx ccs\n");
899 case ECARDGONE:
900 netif_stop_queue(dev);
901 return XMIT_NO_CCS;
902 default:
903 break;
904 }
905 addr = TX_BUF_BASE + (ccsindex << 11);
906
907 if (msg_type == DATA_TYPE) {
908 local->stats.tx_bytes += len;
909 local->stats.tx_packets++;
910 }
911
912 ptx = local->sram + addr;
913
914 ray_build_header(local, ptx, msg_type, data);
915 if (translate) {
916 offset = translate_frame(local, ptx, data, len);
917 } else { /* Encapsulate frame */
918 /* TBD TIB length will move address of ptx->var */
919 memcpy_toio(&ptx->var, data, len);
920 offset = 0;
921 }
922
923 /* fill in the CCS */
924 pccs = ccs_base(local) + ccsindex;
925 len += TX_HEADER_LENGTH + offset;
926 writeb(CCS_TX_REQUEST, &pccs->cmd);
927 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
928 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
929 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
930 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
931 /* TBD still need psm_cam? */
932 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
933 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
934 writeb(0, &pccs->var.tx_request.antenna);
935 pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n",
936 local->net_default_tx_rate);
937
938 /* Interrupt the firmware to process the command */
939 if (interrupt_ecf(local, ccsindex)) {
940 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n");
941 /* TBD very inefficient to copy packet to buffer, and then not
942 send it, but the alternative is to queue the messages and that
943 won't be done for a while. Maybe set tbusy until a CCS is free?
944 */
945 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
946 return XMIT_NO_INTR;
947 }
948 return XMIT_OK;
949 } /* end ray_hw_xmit */
950
951 /*===========================================================================*/
translate_frame(ray_dev_t * local,struct tx_msg __iomem * ptx,unsigned char * data,int len)952 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
953 unsigned char *data, int len)
954 {
955 __be16 proto = ((struct ethhdr *)data)->h_proto;
956 if (ntohs(proto) >= ETH_P_802_3_MIN) { /* DIX II ethernet frame */
957 pr_debug("ray_cs translate_frame DIX II\n");
958 /* Copy LLC header to card buffer */
959 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
960 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc),
961 (UCHAR *) &proto, 2);
962 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
963 /* This is the selective translation table, only 2 entries */
964 writeb(0xf8,
965 &((struct snaphdr_t __iomem *)ptx->var)->org[3]);
966 }
967 /* Copy body of ethernet packet without ethernet header */
968 memcpy_toio((void __iomem *)&ptx->var +
969 sizeof(struct snaphdr_t), data + ETH_HLEN,
970 len - ETH_HLEN);
971 return (int)sizeof(struct snaphdr_t) - ETH_HLEN;
972 } else { /* already 802 type, and proto is length */
973 pr_debug("ray_cs translate_frame 802\n");
974 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
975 pr_debug("ray_cs translate_frame evil IPX\n");
976 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
977 return 0 - ETH_HLEN;
978 }
979 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
980 return 0 - ETH_HLEN;
981 }
982 /* TBD do other frame types */
983 } /* end translate_frame */
984
985 /*===========================================================================*/
ray_build_header(ray_dev_t * local,struct tx_msg __iomem * ptx,UCHAR msg_type,unsigned char * data)986 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
987 UCHAR msg_type, unsigned char *data)
988 {
989 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
990 /*** IEEE 802.11 Address field assignments *************
991 TODS FROMDS addr_1 addr_2 addr_3 addr_4
992 Adhoc 0 0 dest src (terminal) BSSID N/A
993 AP to Terminal 0 1 dest AP(BSSID) source N/A
994 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A
995 AP to AP 1 1 dest AP src AP dest source
996 *******************************************************/
997 if (local->net_type == ADHOC) {
998 writeb(0, &ptx->mac.frame_ctl_2);
999 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest,
1000 2 * ADDRLEN);
1001 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
1002 } else { /* infrastructure */
1003
1004 if (local->sparm.b4.a_acting_as_ap_status) {
1005 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
1006 memcpy_toio(ptx->mac.addr_1,
1007 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1008 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
1009 memcpy_toio(ptx->mac.addr_3,
1010 ((struct ethhdr *)data)->h_source, ADDRLEN);
1011 } else { /* Terminal */
1012
1013 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
1014 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1015 memcpy_toio(ptx->mac.addr_2,
1016 ((struct ethhdr *)data)->h_source, ADDRLEN);
1017 memcpy_toio(ptx->mac.addr_3,
1018 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1019 }
1020 }
1021 } /* end encapsulate_frame */
1022
1023 /*====================================================================*/
1024
1025 /*------------------------------------------------------------------*/
1026 /*
1027 * Wireless Handler : get protocol name
1028 */
ray_get_name(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1029 static int ray_get_name(struct net_device *dev, struct iw_request_info *info,
1030 union iwreq_data *wrqu, char *extra)
1031 {
1032 strcpy(wrqu->name, "IEEE 802.11-FH");
1033 return 0;
1034 }
1035
1036 /*------------------------------------------------------------------*/
1037 /*
1038 * Wireless Handler : set frequency
1039 */
ray_set_freq(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1040 static int ray_set_freq(struct net_device *dev, struct iw_request_info *info,
1041 union iwreq_data *wrqu, char *extra)
1042 {
1043 ray_dev_t *local = netdev_priv(dev);
1044 int err = -EINPROGRESS; /* Call commit handler */
1045
1046 /* Reject if card is already initialised */
1047 if (local->card_status != CARD_AWAITING_PARAM)
1048 return -EBUSY;
1049
1050 /* Setting by channel number */
1051 if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0))
1052 err = -EOPNOTSUPP;
1053 else
1054 local->sparm.b5.a_hop_pattern = wrqu->freq.m;
1055
1056 return err;
1057 }
1058
1059 /*------------------------------------------------------------------*/
1060 /*
1061 * Wireless Handler : get frequency
1062 */
ray_get_freq(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1063 static int ray_get_freq(struct net_device *dev, struct iw_request_info *info,
1064 union iwreq_data *wrqu, char *extra)
1065 {
1066 ray_dev_t *local = netdev_priv(dev);
1067
1068 wrqu->freq.m = local->sparm.b5.a_hop_pattern;
1069 wrqu->freq.e = 0;
1070 return 0;
1071 }
1072
1073 /*------------------------------------------------------------------*/
1074 /*
1075 * Wireless Handler : set ESSID
1076 */
ray_set_essid(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1077 static int ray_set_essid(struct net_device *dev, struct iw_request_info *info,
1078 union iwreq_data *wrqu, char *extra)
1079 {
1080 ray_dev_t *local = netdev_priv(dev);
1081
1082 /* Reject if card is already initialised */
1083 if (local->card_status != CARD_AWAITING_PARAM)
1084 return -EBUSY;
1085
1086 /* Check if we asked for `any' */
1087 if (wrqu->essid.flags == 0)
1088 /* Corey : can you do that ? */
1089 return -EOPNOTSUPP;
1090
1091 /* Check the size of the string */
1092 if (wrqu->essid.length > IW_ESSID_MAX_SIZE)
1093 return -E2BIG;
1094
1095 /* Set the ESSID in the card */
1096 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1097 memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length);
1098
1099 return -EINPROGRESS; /* Call commit handler */
1100 }
1101
1102 /*------------------------------------------------------------------*/
1103 /*
1104 * Wireless Handler : get ESSID
1105 */
ray_get_essid(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1106 static int ray_get_essid(struct net_device *dev, struct iw_request_info *info,
1107 union iwreq_data *wrqu, char *extra)
1108 {
1109 ray_dev_t *local = netdev_priv(dev);
1110 UCHAR tmp[IW_ESSID_MAX_SIZE + 1];
1111
1112 /* Get the essid that was set */
1113 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1114 memcpy(tmp, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1115 tmp[IW_ESSID_MAX_SIZE] = '\0';
1116
1117 /* Push it out ! */
1118 wrqu->essid.length = strlen(tmp);
1119 wrqu->essid.flags = 1; /* active */
1120
1121 return 0;
1122 }
1123
1124 /*------------------------------------------------------------------*/
1125 /*
1126 * Wireless Handler : get AP address
1127 */
ray_get_wap(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1128 static int ray_get_wap(struct net_device *dev, struct iw_request_info *info,
1129 union iwreq_data *wrqu, char *extra)
1130 {
1131 ray_dev_t *local = netdev_priv(dev);
1132
1133 memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN);
1134 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1135
1136 return 0;
1137 }
1138
1139 /*------------------------------------------------------------------*/
1140 /*
1141 * Wireless Handler : set Bit-Rate
1142 */
ray_set_rate(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1143 static int ray_set_rate(struct net_device *dev, struct iw_request_info *info,
1144 union iwreq_data *wrqu, char *extra)
1145 {
1146 ray_dev_t *local = netdev_priv(dev);
1147
1148 /* Reject if card is already initialised */
1149 if (local->card_status != CARD_AWAITING_PARAM)
1150 return -EBUSY;
1151
1152 /* Check if rate is in range */
1153 if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000))
1154 return -EINVAL;
1155
1156 /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1157 if ((local->fw_ver == 0x55) && /* Please check */
1158 (wrqu->bitrate.value == 2000000))
1159 local->net_default_tx_rate = 3;
1160 else
1161 local->net_default_tx_rate = wrqu->bitrate.value / 500000;
1162
1163 return 0;
1164 }
1165
1166 /*------------------------------------------------------------------*/
1167 /*
1168 * Wireless Handler : get Bit-Rate
1169 */
ray_get_rate(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1170 static int ray_get_rate(struct net_device *dev, struct iw_request_info *info,
1171 union iwreq_data *wrqu, char *extra)
1172 {
1173 ray_dev_t *local = netdev_priv(dev);
1174
1175 if (local->net_default_tx_rate == 3)
1176 wrqu->bitrate.value = 2000000; /* Hum... */
1177 else
1178 wrqu->bitrate.value = local->net_default_tx_rate * 500000;
1179 wrqu->bitrate.fixed = 0; /* We are in auto mode */
1180
1181 return 0;
1182 }
1183
1184 /*------------------------------------------------------------------*/
1185 /*
1186 * Wireless Handler : set RTS threshold
1187 */
ray_set_rts(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1188 static int ray_set_rts(struct net_device *dev, struct iw_request_info *info,
1189 union iwreq_data *wrqu, char *extra)
1190 {
1191 ray_dev_t *local = netdev_priv(dev);
1192 int rthr = wrqu->rts.value;
1193
1194 /* Reject if card is already initialised */
1195 if (local->card_status != CARD_AWAITING_PARAM)
1196 return -EBUSY;
1197
1198 /* if(wrq->u.rts.fixed == 0) we should complain */
1199 if (wrqu->rts.disabled)
1200 rthr = 32767;
1201 else {
1202 if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */
1203 return -EINVAL;
1204 }
1205 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1206 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1207
1208 return -EINPROGRESS; /* Call commit handler */
1209 }
1210
1211 /*------------------------------------------------------------------*/
1212 /*
1213 * Wireless Handler : get RTS threshold
1214 */
ray_get_rts(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1215 static int ray_get_rts(struct net_device *dev, struct iw_request_info *info,
1216 union iwreq_data *wrqu, char *extra)
1217 {
1218 ray_dev_t *local = netdev_priv(dev);
1219
1220 wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8)
1221 + local->sparm.b5.a_rts_threshold[1];
1222 wrqu->rts.disabled = (wrqu->rts.value == 32767);
1223 wrqu->rts.fixed = 1;
1224
1225 return 0;
1226 }
1227
1228 /*------------------------------------------------------------------*/
1229 /*
1230 * Wireless Handler : set Fragmentation threshold
1231 */
ray_set_frag(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1232 static int ray_set_frag(struct net_device *dev, struct iw_request_info *info,
1233 union iwreq_data *wrqu, char *extra)
1234 {
1235 ray_dev_t *local = netdev_priv(dev);
1236 int fthr = wrqu->frag.value;
1237
1238 /* Reject if card is already initialised */
1239 if (local->card_status != CARD_AWAITING_PARAM)
1240 return -EBUSY;
1241
1242 /* if(wrq->u.frag.fixed == 0) should complain */
1243 if (wrqu->frag.disabled)
1244 fthr = 32767;
1245 else {
1246 if ((fthr < 256) || (fthr > 2347)) /* To check out ! */
1247 return -EINVAL;
1248 }
1249 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1250 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1251
1252 return -EINPROGRESS; /* Call commit handler */
1253 }
1254
1255 /*------------------------------------------------------------------*/
1256 /*
1257 * Wireless Handler : get Fragmentation threshold
1258 */
ray_get_frag(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1259 static int ray_get_frag(struct net_device *dev, struct iw_request_info *info,
1260 union iwreq_data *wrqu, char *extra)
1261 {
1262 ray_dev_t *local = netdev_priv(dev);
1263
1264 wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8)
1265 + local->sparm.b5.a_frag_threshold[1];
1266 wrqu->frag.disabled = (wrqu->frag.value == 32767);
1267 wrqu->frag.fixed = 1;
1268
1269 return 0;
1270 }
1271
1272 /*------------------------------------------------------------------*/
1273 /*
1274 * Wireless Handler : set Mode of Operation
1275 */
ray_set_mode(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1276 static int ray_set_mode(struct net_device *dev, struct iw_request_info *info,
1277 union iwreq_data *wrqu, char *extra)
1278 {
1279 ray_dev_t *local = netdev_priv(dev);
1280 int err = -EINPROGRESS; /* Call commit handler */
1281 char card_mode = 1;
1282
1283 /* Reject if card is already initialised */
1284 if (local->card_status != CARD_AWAITING_PARAM)
1285 return -EBUSY;
1286
1287 switch (wrqu->mode) {
1288 case IW_MODE_ADHOC:
1289 card_mode = 0;
1290 /* Fall through */
1291 case IW_MODE_INFRA:
1292 local->sparm.b5.a_network_type = card_mode;
1293 break;
1294 default:
1295 err = -EINVAL;
1296 }
1297
1298 return err;
1299 }
1300
1301 /*------------------------------------------------------------------*/
1302 /*
1303 * Wireless Handler : get Mode of Operation
1304 */
ray_get_mode(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1305 static int ray_get_mode(struct net_device *dev, struct iw_request_info *info,
1306 union iwreq_data *wrqu, char *extra)
1307 {
1308 ray_dev_t *local = netdev_priv(dev);
1309
1310 if (local->sparm.b5.a_network_type)
1311 wrqu->mode = IW_MODE_INFRA;
1312 else
1313 wrqu->mode = IW_MODE_ADHOC;
1314
1315 return 0;
1316 }
1317
1318 /*------------------------------------------------------------------*/
1319 /*
1320 * Wireless Handler : get range info
1321 */
ray_get_range(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1322 static int ray_get_range(struct net_device *dev, struct iw_request_info *info,
1323 union iwreq_data *wrqu, char *extra)
1324 {
1325 struct iw_range *range = (struct iw_range *)extra;
1326
1327 memset(range, 0, sizeof(struct iw_range));
1328
1329 /* Set the length (very important for backward compatibility) */
1330 wrqu->data.length = sizeof(struct iw_range);
1331
1332 /* Set the Wireless Extension versions */
1333 range->we_version_compiled = WIRELESS_EXT;
1334 range->we_version_source = 9;
1335
1336 /* Set information in the range struct */
1337 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */
1338 range->num_channels = hop_pattern_length[(int)country];
1339 range->num_frequency = 0;
1340 range->max_qual.qual = 0;
1341 range->max_qual.level = 255; /* What's the correct value ? */
1342 range->max_qual.noise = 255; /* Idem */
1343 range->num_bitrates = 2;
1344 range->bitrate[0] = 1000000; /* 1 Mb/s */
1345 range->bitrate[1] = 2000000; /* 2 Mb/s */
1346 return 0;
1347 }
1348
1349 /*------------------------------------------------------------------*/
1350 /*
1351 * Wireless Private Handler : set framing mode
1352 */
ray_set_framing(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1353 static int ray_set_framing(struct net_device *dev, struct iw_request_info *info,
1354 union iwreq_data *wrqu, char *extra)
1355 {
1356 translate = !!*(extra); /* Set framing mode */
1357
1358 return 0;
1359 }
1360
1361 /*------------------------------------------------------------------*/
1362 /*
1363 * Wireless Private Handler : get framing mode
1364 */
ray_get_framing(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1365 static int ray_get_framing(struct net_device *dev, struct iw_request_info *info,
1366 union iwreq_data *wrqu, char *extra)
1367 {
1368 *(extra) = translate;
1369
1370 return 0;
1371 }
1372
1373 /*------------------------------------------------------------------*/
1374 /*
1375 * Wireless Private Handler : get country
1376 */
ray_get_country(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1377 static int ray_get_country(struct net_device *dev, struct iw_request_info *info,
1378 union iwreq_data *wrqu, char *extra)
1379 {
1380 *(extra) = country;
1381
1382 return 0;
1383 }
1384
1385 /*------------------------------------------------------------------*/
1386 /*
1387 * Commit handler : called after a bunch of SET operations
1388 */
ray_commit(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1389 static int ray_commit(struct net_device *dev, struct iw_request_info *info,
1390 union iwreq_data *wrqu, char *extra)
1391 {
1392 return 0;
1393 }
1394
1395 /*------------------------------------------------------------------*/
1396 /*
1397 * Stats handler : return Wireless Stats
1398 */
ray_get_wireless_stats(struct net_device * dev)1399 static iw_stats *ray_get_wireless_stats(struct net_device *dev)
1400 {
1401 ray_dev_t *local = netdev_priv(dev);
1402 struct pcmcia_device *link = local->finder;
1403 struct status __iomem *p = local->sram + STATUS_BASE;
1404
1405 local->wstats.status = local->card_status;
1406 #ifdef WIRELESS_SPY
1407 if ((local->spy_data.spy_number > 0)
1408 && (local->sparm.b5.a_network_type == 0)) {
1409 /* Get it from the first node in spy list */
1410 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1411 local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1412 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1413 local->wstats.qual.updated =
1414 local->spy_data.spy_stat[0].updated;
1415 }
1416 #endif /* WIRELESS_SPY */
1417
1418 if (pcmcia_dev_present(link)) {
1419 local->wstats.qual.noise = readb(&p->rxnoise);
1420 local->wstats.qual.updated |= 4;
1421 }
1422
1423 return &local->wstats;
1424 } /* end ray_get_wireless_stats */
1425
1426 /*------------------------------------------------------------------*/
1427 /*
1428 * Structures to export the Wireless Handlers
1429 */
1430
1431 static const iw_handler ray_handler[] = {
1432 IW_HANDLER(SIOCSIWCOMMIT, ray_commit),
1433 IW_HANDLER(SIOCGIWNAME, ray_get_name),
1434 IW_HANDLER(SIOCSIWFREQ, ray_set_freq),
1435 IW_HANDLER(SIOCGIWFREQ, ray_get_freq),
1436 IW_HANDLER(SIOCSIWMODE, ray_set_mode),
1437 IW_HANDLER(SIOCGIWMODE, ray_get_mode),
1438 IW_HANDLER(SIOCGIWRANGE, ray_get_range),
1439 #ifdef WIRELESS_SPY
1440 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1441 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1442 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1443 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1444 #endif /* WIRELESS_SPY */
1445 IW_HANDLER(SIOCGIWAP, ray_get_wap),
1446 IW_HANDLER(SIOCSIWESSID, ray_set_essid),
1447 IW_HANDLER(SIOCGIWESSID, ray_get_essid),
1448 IW_HANDLER(SIOCSIWRATE, ray_set_rate),
1449 IW_HANDLER(SIOCGIWRATE, ray_get_rate),
1450 IW_HANDLER(SIOCSIWRTS, ray_set_rts),
1451 IW_HANDLER(SIOCGIWRTS, ray_get_rts),
1452 IW_HANDLER(SIOCSIWFRAG, ray_set_frag),
1453 IW_HANDLER(SIOCGIWFRAG, ray_get_frag),
1454 };
1455
1456 #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */
1457 #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */
1458 #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */
1459
1460 static const iw_handler ray_private_handler[] = {
1461 [0] = ray_set_framing,
1462 [1] = ray_get_framing,
1463 [3] = ray_get_country,
1464 };
1465
1466 static const struct iw_priv_args ray_private_args[] = {
1467 /* cmd, set_args, get_args, name */
1468 {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0,
1469 "set_framing"},
1470 {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1471 "get_framing"},
1472 {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1473 "get_country"},
1474 };
1475
1476 static const struct iw_handler_def ray_handler_def = {
1477 .num_standard = ARRAY_SIZE(ray_handler),
1478 .num_private = ARRAY_SIZE(ray_private_handler),
1479 .num_private_args = ARRAY_SIZE(ray_private_args),
1480 .standard = ray_handler,
1481 .private = ray_private_handler,
1482 .private_args = ray_private_args,
1483 .get_wireless_stats = ray_get_wireless_stats,
1484 };
1485
1486 /*===========================================================================*/
ray_open(struct net_device * dev)1487 static int ray_open(struct net_device *dev)
1488 {
1489 ray_dev_t *local = netdev_priv(dev);
1490 struct pcmcia_device *link;
1491 link = local->finder;
1492
1493 dev_dbg(&link->dev, "ray_open('%s')\n", dev->name);
1494
1495 if (link->open == 0)
1496 local->num_multi = 0;
1497 link->open++;
1498
1499 /* If the card is not started, time to start it ! - Jean II */
1500 if (local->card_status == CARD_AWAITING_PARAM) {
1501 int i;
1502
1503 dev_dbg(&link->dev, "ray_open: doing init now !\n");
1504
1505 /* Download startup parameters */
1506 if ((i = dl_startup_params(dev)) < 0) {
1507 printk(KERN_INFO
1508 "ray_dev_init dl_startup_params failed - "
1509 "returns 0x%x\n", i);
1510 return -1;
1511 }
1512 }
1513
1514 if (sniffer)
1515 netif_stop_queue(dev);
1516 else
1517 netif_start_queue(dev);
1518
1519 dev_dbg(&link->dev, "ray_open ending\n");
1520 return 0;
1521 } /* end ray_open */
1522
1523 /*===========================================================================*/
ray_dev_close(struct net_device * dev)1524 static int ray_dev_close(struct net_device *dev)
1525 {
1526 ray_dev_t *local = netdev_priv(dev);
1527 struct pcmcia_device *link;
1528 link = local->finder;
1529
1530 dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name);
1531
1532 link->open--;
1533 netif_stop_queue(dev);
1534
1535 /* In here, we should stop the hardware (stop card from beeing active)
1536 * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1537 * card is closed we can chage its configuration.
1538 * Probably also need a COR reset to get sane state - Jean II */
1539
1540 return 0;
1541 } /* end ray_dev_close */
1542
1543 /*===========================================================================*/
ray_reset(struct net_device * dev)1544 static void ray_reset(struct net_device *dev)
1545 {
1546 pr_debug("ray_reset entered\n");
1547 }
1548
1549 /*===========================================================================*/
1550 /* Cause a firmware interrupt if it is ready for one */
1551 /* Return nonzero if not ready */
interrupt_ecf(ray_dev_t * local,int ccs)1552 static int interrupt_ecf(ray_dev_t *local, int ccs)
1553 {
1554 int i = 50;
1555 struct pcmcia_device *link = local->finder;
1556
1557 if (!(pcmcia_dev_present(link))) {
1558 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n");
1559 return -1;
1560 }
1561 dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs);
1562
1563 while (i &&
1564 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) &
1565 ECF_INTR_SET))
1566 i--;
1567 if (i == 0) {
1568 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n");
1569 return -1;
1570 }
1571 /* Fill the mailbox, then kick the card */
1572 writeb(ccs, local->sram + SCB_BASE);
1573 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1574 return 0;
1575 } /* interrupt_ecf */
1576
1577 /*===========================================================================*/
1578 /* Get next free transmit CCS */
1579 /* Return - index of current tx ccs */
get_free_tx_ccs(ray_dev_t * local)1580 static int get_free_tx_ccs(ray_dev_t *local)
1581 {
1582 int i;
1583 struct ccs __iomem *pccs = ccs_base(local);
1584 struct pcmcia_device *link = local->finder;
1585
1586 if (!(pcmcia_dev_present(link))) {
1587 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n");
1588 return ECARDGONE;
1589 }
1590
1591 if (test_and_set_bit(0, &local->tx_ccs_lock)) {
1592 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n");
1593 return ECCSBUSY;
1594 }
1595
1596 for (i = 0; i < NUMBER_OF_TX_CCS; i++) {
1597 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1598 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1599 writeb(CCS_END_LIST, &(pccs + i)->link);
1600 local->tx_ccs_lock = 0;
1601 return i;
1602 }
1603 }
1604 local->tx_ccs_lock = 0;
1605 dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n");
1606 return ECCSFULL;
1607 } /* get_free_tx_ccs */
1608
1609 /*===========================================================================*/
1610 /* Get next free CCS */
1611 /* Return - index of current ccs */
get_free_ccs(ray_dev_t * local)1612 static int get_free_ccs(ray_dev_t *local)
1613 {
1614 int i;
1615 struct ccs __iomem *pccs = ccs_base(local);
1616 struct pcmcia_device *link = local->finder;
1617
1618 if (!(pcmcia_dev_present(link))) {
1619 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n");
1620 return ECARDGONE;
1621 }
1622 if (test_and_set_bit(0, &local->ccs_lock)) {
1623 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n");
1624 return ECCSBUSY;
1625 }
1626
1627 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1628 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1629 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1630 writeb(CCS_END_LIST, &(pccs + i)->link);
1631 local->ccs_lock = 0;
1632 return i;
1633 }
1634 }
1635 local->ccs_lock = 0;
1636 dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n");
1637 return ECCSFULL;
1638 } /* get_free_ccs */
1639
1640 /*===========================================================================*/
authenticate_timeout(u_long data)1641 static void authenticate_timeout(u_long data)
1642 {
1643 ray_dev_t *local = (ray_dev_t *) data;
1644 del_timer(&local->timer);
1645 printk(KERN_INFO "ray_cs Authentication with access point failed"
1646 " - timeout\n");
1647 join_net((u_long) local);
1648 }
1649
1650 /*===========================================================================*/
parse_addr(char * in_str,UCHAR * out)1651 static int parse_addr(char *in_str, UCHAR *out)
1652 {
1653 int len;
1654 int i, j, k;
1655 int status;
1656
1657 if (in_str == NULL)
1658 return 0;
1659 if ((len = strlen(in_str)) < 2)
1660 return 0;
1661 memset(out, 0, ADDRLEN);
1662
1663 status = 1;
1664 j = len - 1;
1665 if (j > 12)
1666 j = 12;
1667 i = 5;
1668
1669 while (j > 0) {
1670 if ((k = hex_to_bin(in_str[j--])) != -1)
1671 out[i] = k;
1672 else
1673 return 0;
1674
1675 if (j == 0)
1676 break;
1677 if ((k = hex_to_bin(in_str[j--])) != -1)
1678 out[i] += k << 4;
1679 else
1680 return 0;
1681 if (!i--)
1682 break;
1683 }
1684 return status;
1685 }
1686
1687 /*===========================================================================*/
ray_get_stats(struct net_device * dev)1688 static struct net_device_stats *ray_get_stats(struct net_device *dev)
1689 {
1690 ray_dev_t *local = netdev_priv(dev);
1691 struct pcmcia_device *link = local->finder;
1692 struct status __iomem *p = local->sram + STATUS_BASE;
1693 if (!(pcmcia_dev_present(link))) {
1694 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n");
1695 return &local->stats;
1696 }
1697 if (readb(&p->mrx_overflow_for_host)) {
1698 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1699 writeb(0, &p->mrx_overflow);
1700 writeb(0, &p->mrx_overflow_for_host);
1701 }
1702 if (readb(&p->mrx_checksum_error_for_host)) {
1703 local->stats.rx_crc_errors +=
1704 swab16(readw(&p->mrx_checksum_error));
1705 writeb(0, &p->mrx_checksum_error);
1706 writeb(0, &p->mrx_checksum_error_for_host);
1707 }
1708 if (readb(&p->rx_hec_error_for_host)) {
1709 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1710 writeb(0, &p->rx_hec_error);
1711 writeb(0, &p->rx_hec_error_for_host);
1712 }
1713 return &local->stats;
1714 }
1715
1716 /*===========================================================================*/
ray_update_parm(struct net_device * dev,UCHAR objid,UCHAR * value,int len)1717 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value,
1718 int len)
1719 {
1720 ray_dev_t *local = netdev_priv(dev);
1721 struct pcmcia_device *link = local->finder;
1722 int ccsindex;
1723 int i;
1724 struct ccs __iomem *pccs;
1725
1726 if (!(pcmcia_dev_present(link))) {
1727 dev_dbg(&link->dev, "ray_update_parm - device not present\n");
1728 return;
1729 }
1730
1731 if ((ccsindex = get_free_ccs(local)) < 0) {
1732 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n");
1733 return;
1734 }
1735 pccs = ccs_base(local) + ccsindex;
1736 writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1737 writeb(objid, &pccs->var.update_param.object_id);
1738 writeb(1, &pccs->var.update_param.number_objects);
1739 writeb(0, &pccs->var.update_param.failure_cause);
1740 for (i = 0; i < len; i++) {
1741 writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1742 }
1743 /* Interrupt the firmware to process the command */
1744 if (interrupt_ecf(local, ccsindex)) {
1745 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
1746 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1747 }
1748 }
1749
1750 /*===========================================================================*/
ray_update_multi_list(struct net_device * dev,int all)1751 static void ray_update_multi_list(struct net_device *dev, int all)
1752 {
1753 int ccsindex;
1754 struct ccs __iomem *pccs;
1755 ray_dev_t *local = netdev_priv(dev);
1756 struct pcmcia_device *link = local->finder;
1757 void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1758
1759 if (!(pcmcia_dev_present(link))) {
1760 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n");
1761 return;
1762 } else
1763 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev);
1764 if ((ccsindex = get_free_ccs(local)) < 0) {
1765 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n");
1766 return;
1767 }
1768 pccs = ccs_base(local) + ccsindex;
1769 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1770
1771 if (all) {
1772 writeb(0xff, &pccs->var);
1773 local->num_multi = 0xff;
1774 } else {
1775 struct netdev_hw_addr *ha;
1776 int i = 0;
1777
1778 /* Copy the kernel's list of MC addresses to card */
1779 netdev_for_each_mc_addr(ha, dev) {
1780 memcpy_toio(p, ha->addr, ETH_ALEN);
1781 dev_dbg(&link->dev, "ray_update_multi add addr %pm\n",
1782 ha->addr);
1783 p += ETH_ALEN;
1784 i++;
1785 }
1786 if (i > 256 / ADDRLEN)
1787 i = 256 / ADDRLEN;
1788 writeb((UCHAR) i, &pccs->var);
1789 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i);
1790 /* Interrupt the firmware to process the command */
1791 local->num_multi = i;
1792 }
1793 if (interrupt_ecf(local, ccsindex)) {
1794 dev_dbg(&link->dev,
1795 "ray_cs update_multi failed - ECF not ready for intr\n");
1796 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1797 }
1798 } /* end ray_update_multi_list */
1799
1800 /*===========================================================================*/
set_multicast_list(struct net_device * dev)1801 static void set_multicast_list(struct net_device *dev)
1802 {
1803 ray_dev_t *local = netdev_priv(dev);
1804 UCHAR promisc;
1805
1806 pr_debug("ray_cs set_multicast_list(%p)\n", dev);
1807
1808 if (dev->flags & IFF_PROMISC) {
1809 if (local->sparm.b5.a_promiscuous_mode == 0) {
1810 pr_debug("ray_cs set_multicast_list promisc on\n");
1811 local->sparm.b5.a_promiscuous_mode = 1;
1812 promisc = 1;
1813 ray_update_parm(dev, OBJID_promiscuous_mode,
1814 &promisc, sizeof(promisc));
1815 }
1816 } else {
1817 if (local->sparm.b5.a_promiscuous_mode == 1) {
1818 pr_debug("ray_cs set_multicast_list promisc off\n");
1819 local->sparm.b5.a_promiscuous_mode = 0;
1820 promisc = 0;
1821 ray_update_parm(dev, OBJID_promiscuous_mode,
1822 &promisc, sizeof(promisc));
1823 }
1824 }
1825
1826 if (dev->flags & IFF_ALLMULTI)
1827 ray_update_multi_list(dev, 1);
1828 else {
1829 if (local->num_multi != netdev_mc_count(dev))
1830 ray_update_multi_list(dev, 0);
1831 }
1832 } /* end set_multicast_list */
1833
1834 /*=============================================================================
1835 * All routines below here are run at interrupt time.
1836 =============================================================================*/
ray_interrupt(int irq,void * dev_id)1837 static irqreturn_t ray_interrupt(int irq, void *dev_id)
1838 {
1839 struct net_device *dev = (struct net_device *)dev_id;
1840 struct pcmcia_device *link;
1841 ray_dev_t *local;
1842 struct ccs __iomem *pccs;
1843 struct rcs __iomem *prcs;
1844 UCHAR rcsindex;
1845 UCHAR tmp;
1846 UCHAR cmd;
1847 UCHAR status;
1848 UCHAR memtmp[ESSID_SIZE + 1];
1849
1850
1851 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */
1852 return IRQ_NONE;
1853
1854 pr_debug("ray_cs: interrupt for *dev=%p\n", dev);
1855
1856 local = netdev_priv(dev);
1857 link = local->finder;
1858 if (!pcmcia_dev_present(link)) {
1859 pr_debug(
1860 "ray_cs interrupt from device not present or suspended.\n");
1861 return IRQ_NONE;
1862 }
1863 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1864
1865 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
1866 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex);
1867 clear_interrupt(local);
1868 return IRQ_HANDLED;
1869 }
1870 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */
1871 pccs = ccs_base(local) + rcsindex;
1872 cmd = readb(&pccs->cmd);
1873 status = readb(&pccs->buffer_status);
1874 switch (cmd) {
1875 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */
1876 del_timer(&local->timer);
1877 if (status == CCS_COMMAND_COMPLETE) {
1878 dev_dbg(&link->dev,
1879 "ray_cs interrupt download_startup_parameters OK\n");
1880 } else {
1881 dev_dbg(&link->dev,
1882 "ray_cs interrupt download_startup_parameters fail\n");
1883 }
1884 break;
1885 case CCS_UPDATE_PARAMS:
1886 dev_dbg(&link->dev, "ray_cs interrupt update params done\n");
1887 if (status != CCS_COMMAND_COMPLETE) {
1888 tmp =
1889 readb(&pccs->var.update_param.
1890 failure_cause);
1891 dev_dbg(&link->dev,
1892 "ray_cs interrupt update params failed - reason %d\n",
1893 tmp);
1894 }
1895 break;
1896 case CCS_REPORT_PARAMS:
1897 dev_dbg(&link->dev, "ray_cs interrupt report params done\n");
1898 break;
1899 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
1900 dev_dbg(&link->dev,
1901 "ray_cs interrupt CCS Update Multicast List done\n");
1902 break;
1903 case CCS_UPDATE_POWER_SAVINGS_MODE:
1904 dev_dbg(&link->dev,
1905 "ray_cs interrupt update power save mode done\n");
1906 break;
1907 case CCS_START_NETWORK:
1908 case CCS_JOIN_NETWORK:
1909 memcpy(memtmp, local->sparm.b4.a_current_ess_id,
1910 ESSID_SIZE);
1911 memtmp[ESSID_SIZE] = '\0';
1912
1913 if (status == CCS_COMMAND_COMPLETE) {
1914 if (readb
1915 (&pccs->var.start_network.net_initiated) ==
1916 1) {
1917 dev_dbg(&link->dev,
1918 "ray_cs interrupt network \"%s\" started\n",
1919 memtmp);
1920 } else {
1921 dev_dbg(&link->dev,
1922 "ray_cs interrupt network \"%s\" joined\n",
1923 memtmp);
1924 }
1925 memcpy_fromio(&local->bss_id,
1926 pccs->var.start_network.bssid,
1927 ADDRLEN);
1928
1929 if (local->fw_ver == 0x55)
1930 local->net_default_tx_rate = 3;
1931 else
1932 local->net_default_tx_rate =
1933 readb(&pccs->var.start_network.
1934 net_default_tx_rate);
1935 local->encryption =
1936 readb(&pccs->var.start_network.encryption);
1937 if (!sniffer && (local->net_type == INFRA)
1938 && !(local->sparm.b4.a_acting_as_ap_status)) {
1939 authenticate(local);
1940 }
1941 local->card_status = CARD_ACQ_COMPLETE;
1942 } else {
1943 local->card_status = CARD_ACQ_FAILED;
1944
1945 del_timer(&local->timer);
1946 local->timer.expires = jiffies + HZ * 5;
1947 local->timer.data = (long)local;
1948 if (status == CCS_START_NETWORK) {
1949 dev_dbg(&link->dev,
1950 "ray_cs interrupt network \"%s\" start failed\n",
1951 memtmp);
1952 local->timer.function = start_net;
1953 } else {
1954 dev_dbg(&link->dev,
1955 "ray_cs interrupt network \"%s\" join failed\n",
1956 memtmp);
1957 local->timer.function = join_net;
1958 }
1959 add_timer(&local->timer);
1960 }
1961 break;
1962 case CCS_START_ASSOCIATION:
1963 if (status == CCS_COMMAND_COMPLETE) {
1964 local->card_status = CARD_ASSOC_COMPLETE;
1965 dev_dbg(&link->dev, "ray_cs association successful\n");
1966 } else {
1967 dev_dbg(&link->dev, "ray_cs association failed,\n");
1968 local->card_status = CARD_ASSOC_FAILED;
1969 join_net((u_long) local);
1970 }
1971 break;
1972 case CCS_TX_REQUEST:
1973 if (status == CCS_COMMAND_COMPLETE) {
1974 dev_dbg(&link->dev,
1975 "ray_cs interrupt tx request complete\n");
1976 } else {
1977 dev_dbg(&link->dev,
1978 "ray_cs interrupt tx request failed\n");
1979 }
1980 if (!sniffer)
1981 netif_start_queue(dev);
1982 netif_wake_queue(dev);
1983 break;
1984 case CCS_TEST_MEMORY:
1985 dev_dbg(&link->dev, "ray_cs interrupt mem test done\n");
1986 break;
1987 case CCS_SHUTDOWN:
1988 dev_dbg(&link->dev,
1989 "ray_cs interrupt Unexpected CCS returned - Shutdown\n");
1990 break;
1991 case CCS_DUMP_MEMORY:
1992 dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n");
1993 break;
1994 case CCS_START_TIMER:
1995 dev_dbg(&link->dev,
1996 "ray_cs interrupt DING - raylink timer expired\n");
1997 break;
1998 default:
1999 dev_dbg(&link->dev,
2000 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",
2001 rcsindex, cmd);
2002 }
2003 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
2004 } else { /* It's an RCS */
2005
2006 prcs = rcs_base(local) + rcsindex;
2007
2008 switch (readb(&prcs->interrupt_id)) {
2009 case PROCESS_RX_PACKET:
2010 ray_rx(dev, local, prcs);
2011 break;
2012 case REJOIN_NET_COMPLETE:
2013 dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n");
2014 local->card_status = CARD_ACQ_COMPLETE;
2015 /* do we need to clear tx buffers CCS's? */
2016 if (local->sparm.b4.a_network_type == ADHOC) {
2017 if (!sniffer)
2018 netif_start_queue(dev);
2019 } else {
2020 memcpy_fromio(&local->bss_id,
2021 prcs->var.rejoin_net_complete.
2022 bssid, ADDRLEN);
2023 dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n",
2024 local->bss_id);
2025 if (!sniffer)
2026 authenticate(local);
2027 }
2028 break;
2029 case ROAMING_INITIATED:
2030 dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n");
2031 netif_stop_queue(dev);
2032 local->card_status = CARD_DOING_ACQ;
2033 break;
2034 case JAPAN_CALL_SIGN_RXD:
2035 dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n");
2036 break;
2037 default:
2038 dev_dbg(&link->dev,
2039 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",
2040 rcsindex,
2041 (unsigned int)readb(&prcs->interrupt_id));
2042 break;
2043 }
2044 writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2045 }
2046 clear_interrupt(local);
2047 return IRQ_HANDLED;
2048 } /* ray_interrupt */
2049
2050 /*===========================================================================*/
ray_rx(struct net_device * dev,ray_dev_t * local,struct rcs __iomem * prcs)2051 static void ray_rx(struct net_device *dev, ray_dev_t *local,
2052 struct rcs __iomem *prcs)
2053 {
2054 int rx_len;
2055 unsigned int pkt_addr;
2056 void __iomem *pmsg;
2057 pr_debug("ray_rx process rx packet\n");
2058
2059 /* Calculate address of packet within Rx buffer */
2060 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2061 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2062 /* Length of first packet fragment */
2063 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2064 + readb(&prcs->var.rx_packet.rx_data_length[1]);
2065
2066 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2067 pmsg = local->rmem + pkt_addr;
2068 switch (readb(pmsg)) {
2069 case DATA_TYPE:
2070 pr_debug("ray_rx data type\n");
2071 rx_data(dev, prcs, pkt_addr, rx_len);
2072 break;
2073 case AUTHENTIC_TYPE:
2074 pr_debug("ray_rx authentic type\n");
2075 if (sniffer)
2076 rx_data(dev, prcs, pkt_addr, rx_len);
2077 else
2078 rx_authenticate(local, prcs, pkt_addr, rx_len);
2079 break;
2080 case DEAUTHENTIC_TYPE:
2081 pr_debug("ray_rx deauth type\n");
2082 if (sniffer)
2083 rx_data(dev, prcs, pkt_addr, rx_len);
2084 else
2085 rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2086 break;
2087 case NULL_MSG_TYPE:
2088 pr_debug("ray_cs rx NULL msg\n");
2089 break;
2090 case BEACON_TYPE:
2091 pr_debug("ray_rx beacon type\n");
2092 if (sniffer)
2093 rx_data(dev, prcs, pkt_addr, rx_len);
2094
2095 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr,
2096 rx_len < sizeof(struct beacon_rx) ?
2097 rx_len : sizeof(struct beacon_rx));
2098
2099 local->beacon_rxed = 1;
2100 /* Get the statistics so the card counters never overflow */
2101 ray_get_stats(dev);
2102 break;
2103 default:
2104 pr_debug("ray_cs unknown pkt type %2x\n",
2105 (unsigned int)readb(pmsg));
2106 break;
2107 }
2108
2109 } /* end ray_rx */
2110
2111 /*===========================================================================*/
rx_data(struct net_device * dev,struct rcs __iomem * prcs,unsigned int pkt_addr,int rx_len)2112 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
2113 unsigned int pkt_addr, int rx_len)
2114 {
2115 struct sk_buff *skb = NULL;
2116 struct rcs __iomem *prcslink = prcs;
2117 ray_dev_t *local = netdev_priv(dev);
2118 UCHAR *rx_ptr;
2119 int total_len;
2120 int tmp;
2121 #ifdef WIRELESS_SPY
2122 int siglev = local->last_rsl;
2123 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */
2124 #endif
2125
2126 if (!sniffer) {
2127 if (translate) {
2128 /* TBD length needs fixing for translated header */
2129 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2130 rx_len >
2131 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2132 FCS_LEN)) {
2133 pr_debug(
2134 "ray_cs invalid packet length %d received\n",
2135 rx_len);
2136 return;
2137 }
2138 } else { /* encapsulated ethernet */
2139
2140 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2141 rx_len >
2142 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2143 FCS_LEN)) {
2144 pr_debug(
2145 "ray_cs invalid packet length %d received\n",
2146 rx_len);
2147 return;
2148 }
2149 }
2150 }
2151 pr_debug("ray_cs rx_data packet\n");
2152 /* If fragmented packet, verify sizes of fragments add up */
2153 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2154 pr_debug("ray_cs rx'ed fragment\n");
2155 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2156 + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2157 total_len = tmp;
2158 prcslink = prcs;
2159 do {
2160 tmp -=
2161 (readb(&prcslink->var.rx_packet.rx_data_length[0])
2162 << 8)
2163 + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2164 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index)
2165 == 0xFF || tmp < 0)
2166 break;
2167 prcslink = rcs_base(local)
2168 + readb(&prcslink->link_field);
2169 } while (1);
2170
2171 if (tmp < 0) {
2172 pr_debug(
2173 "ray_cs rx_data fragment lengths don't add up\n");
2174 local->stats.rx_dropped++;
2175 release_frag_chain(local, prcs);
2176 return;
2177 }
2178 } else { /* Single unfragmented packet */
2179 total_len = rx_len;
2180 }
2181
2182 skb = dev_alloc_skb(total_len + 5);
2183 if (skb == NULL) {
2184 pr_debug("ray_cs rx_data could not allocate skb\n");
2185 local->stats.rx_dropped++;
2186 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2187 release_frag_chain(local, prcs);
2188 return;
2189 }
2190 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */
2191
2192 pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len,
2193 rx_len);
2194
2195 /************************/
2196 /* Reserve enough room for the whole damn packet. */
2197 rx_ptr = skb_put(skb, total_len);
2198 /* Copy the whole packet to sk_buff */
2199 rx_ptr +=
2200 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2201 /* Get source address */
2202 #ifdef WIRELESS_SPY
2203 skb_copy_from_linear_data_offset(skb,
2204 offsetof(struct mac_header, addr_2),
2205 linksrcaddr, ETH_ALEN);
2206 #endif
2207 /* Now, deal with encapsulation/translation/sniffer */
2208 if (!sniffer) {
2209 if (!translate) {
2210 /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2211 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2212 skb_pull(skb, RX_MAC_HEADER_LENGTH);
2213 } else {
2214 /* Do translation */
2215 untranslate(local, skb, total_len);
2216 }
2217 } else { /* sniffer mode, so just pass whole packet */
2218 };
2219
2220 /************************/
2221 /* Now pick up the rest of the fragments if any */
2222 tmp = 17;
2223 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2224 prcslink = prcs;
2225 pr_debug("ray_cs rx_data in fragment loop\n");
2226 do {
2227 prcslink = rcs_base(local)
2228 +
2229 readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2230 rx_len =
2231 ((readb(&prcslink->var.rx_packet.rx_data_length[0])
2232 << 8)
2233 +
2234 readb(&prcslink->var.rx_packet.rx_data_length[1]))
2235 & RX_BUFF_END;
2236 pkt_addr =
2237 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) <<
2238 8)
2239 + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2240 & RX_BUFF_END;
2241
2242 rx_ptr +=
2243 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2244
2245 } while (tmp-- &&
2246 readb(&prcslink->var.rx_packet.next_frag_rcs_index) !=
2247 0xFF);
2248 release_frag_chain(local, prcs);
2249 }
2250
2251 skb->protocol = eth_type_trans(skb, dev);
2252 netif_rx(skb);
2253 local->stats.rx_packets++;
2254 local->stats.rx_bytes += total_len;
2255
2256 /* Gather signal strength per address */
2257 #ifdef WIRELESS_SPY
2258 /* For the Access Point or the node having started the ad-hoc net
2259 * note : ad-hoc work only in some specific configurations, but we
2260 * kludge in ray_get_wireless_stats... */
2261 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) {
2262 /* Update statistics */
2263 /*local->wstats.qual.qual = none ? */
2264 local->wstats.qual.level = siglev;
2265 /*local->wstats.qual.noise = none ? */
2266 local->wstats.qual.updated = 0x2;
2267 }
2268 /* Now, update the spy stuff */
2269 {
2270 struct iw_quality wstats;
2271 wstats.level = siglev;
2272 /* wstats.noise = none ? */
2273 /* wstats.qual = none ? */
2274 wstats.updated = 0x2;
2275 /* Update spy records */
2276 wireless_spy_update(dev, linksrcaddr, &wstats);
2277 }
2278 #endif /* WIRELESS_SPY */
2279 } /* end rx_data */
2280
2281 /*===========================================================================*/
untranslate(ray_dev_t * local,struct sk_buff * skb,int len)2282 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2283 {
2284 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH);
2285 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2286 __be16 type = *(__be16 *) psnap->ethertype;
2287 int delta;
2288 struct ethhdr *peth;
2289 UCHAR srcaddr[ADDRLEN];
2290 UCHAR destaddr[ADDRLEN];
2291 static const UCHAR org_bridge[3] = { 0, 0, 0xf8 };
2292 static const UCHAR org_1042[3] = { 0, 0, 0 };
2293
2294 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2295 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2296
2297 #if 0
2298 if {
2299 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
2300 DUMP_PREFIX_NONE, 16, 1,
2301 skb->data, 64, true);
2302 printk(KERN_DEBUG
2303 "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2304 ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
2305 psnap->org[0], psnap->org[1], psnap->org[2]);
2306 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data);
2307 }
2308 #endif
2309
2310 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2311 /* not a snap type so leave it alone */
2312 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2313 psnap->dsap, psnap->ssap, psnap->ctrl);
2314
2315 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2316 peth = (struct ethhdr *)(skb->data + delta);
2317 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2318 } else { /* Its a SNAP */
2319 if (memcmp(psnap->org, org_bridge, 3) == 0) {
2320 /* EtherII and nuke the LLC */
2321 pr_debug("ray_cs untranslate Bridge encap\n");
2322 delta = RX_MAC_HEADER_LENGTH
2323 + sizeof(struct snaphdr_t) - ETH_HLEN;
2324 peth = (struct ethhdr *)(skb->data + delta);
2325 peth->h_proto = type;
2326 } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2327 switch (ntohs(type)) {
2328 case ETH_P_IPX:
2329 case ETH_P_AARP:
2330 pr_debug("ray_cs untranslate RFC IPX/AARP\n");
2331 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2332 peth = (struct ethhdr *)(skb->data + delta);
2333 peth->h_proto =
2334 htons(len - RX_MAC_HEADER_LENGTH);
2335 break;
2336 default:
2337 pr_debug("ray_cs untranslate RFC default\n");
2338 delta = RX_MAC_HEADER_LENGTH +
2339 sizeof(struct snaphdr_t) - ETH_HLEN;
2340 peth = (struct ethhdr *)(skb->data + delta);
2341 peth->h_proto = type;
2342 break;
2343 }
2344 } else {
2345 printk("ray_cs untranslate very confused by packet\n");
2346 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2347 peth = (struct ethhdr *)(skb->data + delta);
2348 peth->h_proto = type;
2349 }
2350 }
2351 /* TBD reserve skb_reserve(skb, delta); */
2352 skb_pull(skb, delta);
2353 pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta,
2354 skb->data);
2355 memcpy(peth->h_dest, destaddr, ADDRLEN);
2356 memcpy(peth->h_source, srcaddr, ADDRLEN);
2357 #if 0
2358 {
2359 int i;
2360 printk(KERN_DEBUG "skb->data after untranslate:");
2361 for (i = 0; i < 64; i++)
2362 printk("%02x ", skb->data[i]);
2363 printk("\n");
2364 }
2365 #endif
2366 } /* end untranslate */
2367
2368 /*===========================================================================*/
2369 /* Copy data from circular receive buffer to PC memory.
2370 * dest = destination address in PC memory
2371 * pkt_addr = source address in receive buffer
2372 * len = length of packet to copy
2373 */
copy_from_rx_buff(ray_dev_t * local,UCHAR * dest,int pkt_addr,int length)2374 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr,
2375 int length)
2376 {
2377 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2378 if (wrap_bytes <= 0) {
2379 memcpy_fromio(dest, local->rmem + pkt_addr, length);
2380 } else { /* Packet wrapped in circular buffer */
2381
2382 memcpy_fromio(dest, local->rmem + pkt_addr,
2383 length - wrap_bytes);
2384 memcpy_fromio(dest + length - wrap_bytes, local->rmem,
2385 wrap_bytes);
2386 }
2387 return length;
2388 }
2389
2390 /*===========================================================================*/
release_frag_chain(ray_dev_t * local,struct rcs __iomem * prcs)2391 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs)
2392 {
2393 struct rcs __iomem *prcslink = prcs;
2394 int tmp = 17;
2395 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2396
2397 while (tmp--) {
2398 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2399 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2400 pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n",
2401 rcsindex);
2402 break;
2403 }
2404 prcslink = rcs_base(local) + rcsindex;
2405 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2406 }
2407 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2408 }
2409
2410 /*===========================================================================*/
authenticate(ray_dev_t * local)2411 static void authenticate(ray_dev_t *local)
2412 {
2413 struct pcmcia_device *link = local->finder;
2414 dev_dbg(&link->dev, "ray_cs Starting authentication.\n");
2415 if (!(pcmcia_dev_present(link))) {
2416 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n");
2417 return;
2418 }
2419
2420 del_timer(&local->timer);
2421 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2422 local->timer.function = join_net;
2423 } else {
2424 local->timer.function = authenticate_timeout;
2425 }
2426 local->timer.expires = jiffies + HZ * 2;
2427 local->timer.data = (long)local;
2428 add_timer(&local->timer);
2429 local->authentication_state = AWAITING_RESPONSE;
2430 } /* end authenticate */
2431
2432 /*===========================================================================*/
rx_authenticate(ray_dev_t * local,struct rcs __iomem * prcs,unsigned int pkt_addr,int rx_len)2433 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2434 unsigned int pkt_addr, int rx_len)
2435 {
2436 UCHAR buff[256];
2437 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2438
2439 del_timer(&local->timer);
2440
2441 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2442 /* if we are trying to get authenticated */
2443 if (local->sparm.b4.a_network_type == ADHOC) {
2444 pr_debug("ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n",
2445 msg->var[0], msg->var[1], msg->var[2], msg->var[3],
2446 msg->var[4], msg->var[5]);
2447 if (msg->var[2] == 1) {
2448 pr_debug("ray_cs Sending authentication response.\n");
2449 if (!build_auth_frame
2450 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2451 local->authentication_state = NEED_TO_AUTH;
2452 memcpy(local->auth_id, msg->mac.addr_2,
2453 ADDRLEN);
2454 }
2455 }
2456 } else { /* Infrastructure network */
2457
2458 if (local->authentication_state == AWAITING_RESPONSE) {
2459 /* Verify authentication sequence #2 and success */
2460 if (msg->var[2] == 2) {
2461 if ((msg->var[3] | msg->var[4]) == 0) {
2462 pr_debug("Authentication successful\n");
2463 local->card_status = CARD_AUTH_COMPLETE;
2464 associate(local);
2465 local->authentication_state =
2466 AUTHENTICATED;
2467 } else {
2468 pr_debug("Authentication refused\n");
2469 local->card_status = CARD_AUTH_REFUSED;
2470 join_net((u_long) local);
2471 local->authentication_state =
2472 UNAUTHENTICATED;
2473 }
2474 }
2475 }
2476 }
2477
2478 } /* end rx_authenticate */
2479
2480 /*===========================================================================*/
associate(ray_dev_t * local)2481 static void associate(ray_dev_t *local)
2482 {
2483 struct ccs __iomem *pccs;
2484 struct pcmcia_device *link = local->finder;
2485 struct net_device *dev = link->priv;
2486 int ccsindex;
2487 if (!(pcmcia_dev_present(link))) {
2488 dev_dbg(&link->dev, "ray_cs associate - device not present\n");
2489 return;
2490 }
2491 /* If no tx buffers available, return */
2492 if ((ccsindex = get_free_ccs(local)) < 0) {
2493 /* TBD should never be here but... what if we are? */
2494 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n");
2495 return;
2496 }
2497 dev_dbg(&link->dev, "ray_cs Starting association with access point\n");
2498 pccs = ccs_base(local) + ccsindex;
2499 /* fill in the CCS */
2500 writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2501 /* Interrupt the firmware to process the command */
2502 if (interrupt_ecf(local, ccsindex)) {
2503 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
2504 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2505
2506 del_timer(&local->timer);
2507 local->timer.expires = jiffies + HZ * 2;
2508 local->timer.data = (long)local;
2509 local->timer.function = join_net;
2510 add_timer(&local->timer);
2511 local->card_status = CARD_ASSOC_FAILED;
2512 return;
2513 }
2514 if (!sniffer)
2515 netif_start_queue(dev);
2516
2517 } /* end associate */
2518
2519 /*===========================================================================*/
rx_deauthenticate(ray_dev_t * local,struct rcs __iomem * prcs,unsigned int pkt_addr,int rx_len)2520 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2521 unsigned int pkt_addr, int rx_len)
2522 {
2523 /* UCHAR buff[256];
2524 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2525 */
2526 pr_debug("Deauthentication frame received\n");
2527 local->authentication_state = UNAUTHENTICATED;
2528 /* Need to reauthenticate or rejoin depending on reason code */
2529 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2530 */
2531 }
2532
2533 /*===========================================================================*/
clear_interrupt(ray_dev_t * local)2534 static void clear_interrupt(ray_dev_t *local)
2535 {
2536 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2537 }
2538
2539 /*===========================================================================*/
2540 #ifdef CONFIG_PROC_FS
2541 #define MAXDATA (PAGE_SIZE - 80)
2542
2543 static const char *card_status[] = {
2544 "Card inserted - uninitialized", /* 0 */
2545 "Card not downloaded", /* 1 */
2546 "Waiting for download parameters", /* 2 */
2547 "Card doing acquisition", /* 3 */
2548 "Acquisition complete", /* 4 */
2549 "Authentication complete", /* 5 */
2550 "Association complete", /* 6 */
2551 "???", "???", "???", "???", /* 7 8 9 10 undefined */
2552 "Card init error", /* 11 */
2553 "Download parameters error", /* 12 */
2554 "???", /* 13 */
2555 "Acquisition failed", /* 14 */
2556 "Authentication refused", /* 15 */
2557 "Association failed" /* 16 */
2558 };
2559
2560 static const char *nettype[] = { "Adhoc", "Infra " };
2561 static const char *framing[] = { "Encapsulation", "Translation" }
2562
2563 ;
2564 /*===========================================================================*/
ray_cs_proc_show(struct seq_file * m,void * v)2565 static int ray_cs_proc_show(struct seq_file *m, void *v)
2566 {
2567 /* Print current values which are not available via other means
2568 * eg ifconfig
2569 */
2570 int i;
2571 struct pcmcia_device *link;
2572 struct net_device *dev;
2573 ray_dev_t *local;
2574 UCHAR *p;
2575 struct freq_hop_element *pfh;
2576 UCHAR c[33];
2577
2578 link = this_device;
2579 if (!link)
2580 return 0;
2581 dev = (struct net_device *)link->priv;
2582 if (!dev)
2583 return 0;
2584 local = netdev_priv(dev);
2585 if (!local)
2586 return 0;
2587
2588 seq_puts(m, "Raylink Wireless LAN driver status\n");
2589 seq_printf(m, "%s\n", rcsid);
2590 /* build 4 does not report version, and field is 0x55 after memtest */
2591 seq_puts(m, "Firmware version = ");
2592 if (local->fw_ver == 0x55)
2593 seq_puts(m, "4 - Use dump_cis for more details\n");
2594 else
2595 seq_printf(m, "%2d.%02d.%02d\n",
2596 local->fw_ver, local->fw_bld, local->fw_var);
2597
2598 for (i = 0; i < 32; i++)
2599 c[i] = local->sparm.b5.a_current_ess_id[i];
2600 c[32] = 0;
2601 seq_printf(m, "%s network ESSID = \"%s\"\n",
2602 nettype[local->sparm.b5.a_network_type], c);
2603
2604 p = local->bss_id;
2605 seq_printf(m, "BSSID = %pM\n", p);
2606
2607 seq_printf(m, "Country code = %d\n",
2608 local->sparm.b5.a_curr_country_code);
2609
2610 i = local->card_status;
2611 if (i < 0)
2612 i = 10;
2613 if (i > 16)
2614 i = 10;
2615 seq_printf(m, "Card status = %s\n", card_status[i]);
2616
2617 seq_printf(m, "Framing mode = %s\n", framing[translate]);
2618
2619 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl);
2620
2621 if (local->beacon_rxed) {
2622 /* Pull some fields out of last beacon received */
2623 seq_printf(m, "Beacon Interval = %d Kus\n",
2624 local->last_bcn.beacon_intvl[0]
2625 + 256 * local->last_bcn.beacon_intvl[1]);
2626
2627 p = local->last_bcn.elements;
2628 if (p[0] == C_ESSID_ELEMENT_ID)
2629 p += p[1] + 2;
2630 else {
2631 seq_printf(m,
2632 "Parse beacon failed at essid element id = %d\n",
2633 p[0]);
2634 return 0;
2635 }
2636
2637 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2638 seq_puts(m, "Supported rate codes = ");
2639 for (i = 2; i < p[1] + 2; i++)
2640 seq_printf(m, "0x%02x ", p[i]);
2641 seq_putc(m, '\n');
2642 p += p[1] + 2;
2643 } else {
2644 seq_puts(m, "Parse beacon failed at rates element\n");
2645 return 0;
2646 }
2647
2648 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2649 pfh = (struct freq_hop_element *)p;
2650 seq_printf(m, "Hop dwell = %d Kus\n",
2651 pfh->dwell_time[0] +
2652 256 * pfh->dwell_time[1]);
2653 seq_printf(m, "Hop set = %d\n",
2654 pfh->hop_set);
2655 seq_printf(m, "Hop pattern = %d\n",
2656 pfh->hop_pattern);
2657 seq_printf(m, "Hop index = %d\n",
2658 pfh->hop_index);
2659 p += p[1] + 2;
2660 } else {
2661 seq_puts(m,
2662 "Parse beacon failed at FH param element\n");
2663 return 0;
2664 }
2665 } else {
2666 seq_puts(m, "No beacons received\n");
2667 }
2668 return 0;
2669 }
2670
ray_cs_proc_open(struct inode * inode,struct file * file)2671 static int ray_cs_proc_open(struct inode *inode, struct file *file)
2672 {
2673 return single_open(file, ray_cs_proc_show, NULL);
2674 }
2675
2676 static const struct file_operations ray_cs_proc_fops = {
2677 .owner = THIS_MODULE,
2678 .open = ray_cs_proc_open,
2679 .read = seq_read,
2680 .llseek = seq_lseek,
2681 .release = single_release,
2682 };
2683 #endif
2684 /*===========================================================================*/
build_auth_frame(ray_dev_t * local,UCHAR * dest,int auth_type)2685 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2686 {
2687 int addr;
2688 struct ccs __iomem *pccs;
2689 struct tx_msg __iomem *ptx;
2690 int ccsindex;
2691
2692 /* If no tx buffers available, return */
2693 if ((ccsindex = get_free_tx_ccs(local)) < 0) {
2694 pr_debug("ray_cs send authenticate - No free tx ccs\n");
2695 return -1;
2696 }
2697
2698 pccs = ccs_base(local) + ccsindex;
2699
2700 /* Address in card space */
2701 addr = TX_BUF_BASE + (ccsindex << 11);
2702 /* fill in the CCS */
2703 writeb(CCS_TX_REQUEST, &pccs->cmd);
2704 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2705 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2706 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2707 writeb(TX_AUTHENTICATE_LENGTH_LSB,
2708 pccs->var.tx_request.tx_data_length + 1);
2709 writeb(0, &pccs->var.tx_request.pow_sav_mode);
2710
2711 ptx = local->sram + addr;
2712 /* fill in the mac header */
2713 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2714 writeb(0, &ptx->mac.frame_ctl_2);
2715
2716 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2717 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2718 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2719
2720 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2721 memset_io(ptx->var, 0, 6);
2722 writeb(auth_type & 0xff, ptx->var + 2);
2723
2724 /* Interrupt the firmware to process the command */
2725 if (interrupt_ecf(local, ccsindex)) {
2726 pr_debug(
2727 "ray_cs send authentication request failed - ECF not ready for intr\n");
2728 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2729 return -1;
2730 }
2731 return 0;
2732 } /* End build_auth_frame */
2733
2734 /*===========================================================================*/
2735 #ifdef CONFIG_PROC_FS
ray_cs_essid_proc_write(struct file * file,const char __user * buffer,size_t count,loff_t * pos)2736 static ssize_t ray_cs_essid_proc_write(struct file *file,
2737 const char __user *buffer, size_t count, loff_t *pos)
2738 {
2739 static char proc_essid[33];
2740 unsigned int len = count;
2741
2742 if (len > 32)
2743 len = 32;
2744 memset(proc_essid, 0, 33);
2745 if (copy_from_user(proc_essid, buffer, len))
2746 return -EFAULT;
2747 essid = proc_essid;
2748 return count;
2749 }
2750
2751 static const struct file_operations ray_cs_essid_proc_fops = {
2752 .owner = THIS_MODULE,
2753 .write = ray_cs_essid_proc_write,
2754 .llseek = noop_llseek,
2755 };
2756
int_proc_write(struct file * file,const char __user * buffer,size_t count,loff_t * pos)2757 static ssize_t int_proc_write(struct file *file, const char __user *buffer,
2758 size_t count, loff_t *pos)
2759 {
2760 static char proc_number[10];
2761 char *p;
2762 int nr, len;
2763
2764 if (!count)
2765 return 0;
2766
2767 if (count > 9)
2768 return -EINVAL;
2769 if (copy_from_user(proc_number, buffer, count))
2770 return -EFAULT;
2771 p = proc_number;
2772 nr = 0;
2773 len = count;
2774 do {
2775 unsigned int c = *p - '0';
2776 if (c > 9)
2777 return -EINVAL;
2778 nr = nr * 10 + c;
2779 p++;
2780 } while (--len);
2781 *(int *)PDE_DATA(file_inode(file)) = nr;
2782 return count;
2783 }
2784
2785 static const struct file_operations int_proc_fops = {
2786 .owner = THIS_MODULE,
2787 .write = int_proc_write,
2788 .llseek = noop_llseek,
2789 };
2790 #endif
2791
2792 static const struct pcmcia_device_id ray_ids[] = {
2793 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2794 PCMCIA_DEVICE_NULL,
2795 };
2796
2797 MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2798
2799 static struct pcmcia_driver ray_driver = {
2800 .owner = THIS_MODULE,
2801 .name = "ray_cs",
2802 .probe = ray_probe,
2803 .remove = ray_detach,
2804 .id_table = ray_ids,
2805 .suspend = ray_suspend,
2806 .resume = ray_resume,
2807 };
2808
init_ray_cs(void)2809 static int __init init_ray_cs(void)
2810 {
2811 int rc;
2812
2813 pr_debug("%s\n", rcsid);
2814 rc = pcmcia_register_driver(&ray_driver);
2815 pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n",
2816 rc);
2817
2818 #ifdef CONFIG_PROC_FS
2819 proc_mkdir("driver/ray_cs", NULL);
2820
2821 proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops);
2822 proc_create("driver/ray_cs/essid", S_IWUSR, NULL, &ray_cs_essid_proc_fops);
2823 proc_create_data("driver/ray_cs/net_type", S_IWUSR, NULL, &int_proc_fops, &net_type);
2824 proc_create_data("driver/ray_cs/translate", S_IWUSR, NULL, &int_proc_fops, &translate);
2825 #endif
2826 if (translate != 0)
2827 translate = 1;
2828 return 0;
2829 } /* init_ray_cs */
2830
2831 /*===========================================================================*/
2832
exit_ray_cs(void)2833 static void __exit exit_ray_cs(void)
2834 {
2835 pr_debug("ray_cs: cleanup_module\n");
2836
2837 #ifdef CONFIG_PROC_FS
2838 remove_proc_entry("driver/ray_cs/ray_cs", NULL);
2839 remove_proc_entry("driver/ray_cs/essid", NULL);
2840 remove_proc_entry("driver/ray_cs/net_type", NULL);
2841 remove_proc_entry("driver/ray_cs/translate", NULL);
2842 remove_proc_entry("driver/ray_cs", NULL);
2843 #endif
2844
2845 pcmcia_unregister_driver(&ray_driver);
2846 } /* exit_ray_cs */
2847
2848 module_init(init_ray_cs);
2849 module_exit(exit_ray_cs);
2850
2851 /*===========================================================================*/
2852