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[linux-rt-nao.git] / drivers / net / wireless / ray_cs.c
bloba73fa7c09fc66c8418f6433ca0bc7671293ff008
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/slab.h>
39 #include <linux/string.h>
40 #include <linux/timer.h>
41 #include <linux/init.h>
42 #include <linux/netdevice.h>
43 #include <linux/etherdevice.h>
44 #include <linux/if_arp.h>
45 #include <linux/ioport.h>
46 #include <linux/skbuff.h>
47 #include <linux/ethtool.h>
48 #include <linux/ieee80211.h>
49
50 #include <pcmcia/cs_types.h>
51 #include <pcmcia/cs.h>
52 #include <pcmcia/cistpl.h>
53 #include <pcmcia/cisreg.h>
54 #include <pcmcia/ds.h>
55 #include <pcmcia/mem_op.h>
56
57 #include <linux/wireless.h>
58 #include <net/iw_handler.h>
59
60 #include <asm/io.h>
61 #include <asm/system.h>
62 #include <asm/byteorder.h>
63 #include <asm/uaccess.h>
64
65 /* Warning : these stuff will slow down the driver... */
66 #define WIRELESS_SPY /* Enable spying addresses */
67 /* Definitions we need for spy */
68 typedef struct iw_statistics iw_stats;
69 typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */
70
71 #include "rayctl.h"
72 #include "ray_cs.h"
73
74 /* All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
75 you do not define PCMCIA_DEBUG at all, all the debug code will be
76 left out. If you compile with PCMCIA_DEBUG=0, the debug code will
77 be present but disabled -- but it can then be enabled for specific
78 modules at load time with a 'pc_debug=#' option to insmod.
79 */
80
81 #ifdef RAYLINK_DEBUG
82 #define PCMCIA_DEBUG RAYLINK_DEBUG
83 #endif
84 #ifdef PCMCIA_DEBUG
85 static int ray_debug;
86 static int pc_debug = PCMCIA_DEBUG;
87 module_param(pc_debug, int, 0);
88 /* #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args); */
89 #define DEBUG(n, args...) if (pc_debug>(n)) printk(args);
90 #else
91 #define DEBUG(n, args...)
92 #endif
93 /** Prototypes based on PCMCIA skeleton driver *******************************/
94 static int ray_config(struct pcmcia_device *link);
95 static void ray_release(struct pcmcia_device *link);
96 static void ray_detach(struct pcmcia_device *p_dev);
97
98 /***** Prototypes indicated by device structure ******************************/
99 static int ray_dev_close(struct net_device *dev);
100 static int ray_dev_config(struct net_device *dev, struct ifmap *map);
101 static struct net_device_stats *ray_get_stats(struct net_device *dev);
102 static int ray_dev_init(struct net_device *dev);
103
104 static const struct ethtool_ops netdev_ethtool_ops;
105
106 static int ray_open(struct net_device *dev);
107 static int ray_dev_start_xmit(struct sk_buff *skb, struct net_device *dev);
108 static void set_multicast_list(struct net_device *dev);
109 static void ray_update_multi_list(struct net_device *dev, int all);
110 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
111 unsigned char *data, int len);
112 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx, UCHAR msg_type,
113 unsigned char *data);
114 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
115 static iw_stats * ray_get_wireless_stats(struct net_device * dev);
116 static const struct iw_handler_def ray_handler_def;
117
118 /***** Prototypes for raylink functions **************************************/
119 static int asc_to_int(char a);
120 static void authenticate(ray_dev_t *local);
121 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
122 static void authenticate_timeout(u_long);
123 static int get_free_ccs(ray_dev_t *local);
124 static int get_free_tx_ccs(ray_dev_t *local);
125 static void init_startup_params(ray_dev_t *local);
126 static int parse_addr(char *in_str, UCHAR *out);
127 static int ray_hw_xmit(unsigned char* data, int len, struct net_device* dev, UCHAR type);
128 static int ray_init(struct net_device *dev);
129 static int interrupt_ecf(ray_dev_t *local, int ccs);
130 static void ray_reset(struct net_device *dev);
131 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
132 static void verify_dl_startup(u_long);
133
134 /* Prototypes for interrpt time functions **********************************/
135 static irqreturn_t ray_interrupt (int reg, void *dev_id);
136 static void clear_interrupt(ray_dev_t *local);
137 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
138 unsigned int pkt_addr, int rx_len);
139 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
140 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
141 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
142 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
143 unsigned int pkt_addr, int rx_len);
144 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs, unsigned int pkt_addr,
145 int rx_len);
146 static void associate(ray_dev_t *local);
147
148 /* Card command functions */
149 static int dl_startup_params(struct net_device *dev);
150 static void join_net(u_long local);
151 static void start_net(u_long local);
152 /* void start_net(ray_dev_t *local); */
153
154 /*===========================================================================*/
155 /* Parameters that can be set with 'insmod' */
156
157 /* ADHOC=0, Infrastructure=1 */
158 static int net_type = ADHOC;
159
160 /* Hop dwell time in Kus (1024 us units defined by 802.11) */
161 static int hop_dwell = 128;
162
163 /* Beacon period in Kus */
164 static int beacon_period = 256;
165
166 /* power save mode (0 = off, 1 = save power) */
167 static int psm;
168
169 /* String for network's Extended Service Set ID. 32 Characters max */
170 static char *essid;
171
172 /* Default to encapsulation unless translation requested */
173 static int translate = 1;
174
175 static int country = USA;
176
177 static int sniffer;
178
179 static int bc;
180
181 /* 48 bit physical card address if overriding card's real physical
182 * address is required. Since IEEE 802.11 addresses are 48 bits
183 * like ethernet, an int can't be used, so a string is used. To
184 * allow use of addresses starting with a decimal digit, the first
185 * character must be a letter and will be ignored. This letter is
186 * followed by up to 12 hex digits which are the address. If less
187 * than 12 digits are used, the address will be left filled with 0's.
188 * Note that bit 0 of the first byte is the broadcast bit, and evil
189 * things will happen if it is not 0 in a card address.
190 */
191 static char *phy_addr = NULL;
192
193
194 /* A struct pcmcia_device structure has fields for most things that are needed
195 to keep track of a socket, but there will usually be some device
196 specific information that also needs to be kept track of. The
197 'priv' pointer in a struct pcmcia_device structure can be used to point to
198 a device-specific private data structure, like this.
199 */
200 static unsigned int ray_mem_speed = 500;
201
202 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
203 static struct pcmcia_device *this_device = NULL;
204
205 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
206 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
207 MODULE_LICENSE("GPL");
208
209 module_param(net_type, int, 0);
210 module_param(hop_dwell, int, 0);
211 module_param(beacon_period, int, 0);
212 module_param(psm, int, 0);
213 module_param(essid, charp, 0);
214 module_param(translate, int, 0);
215 module_param(country, int, 0);
216 module_param(sniffer, int, 0);
217 module_param(bc, int, 0);
218 module_param(phy_addr, charp, 0);
219 module_param(ray_mem_speed, int, 0);
220
221 static UCHAR b5_default_startup_parms[] = {
222 0, 0, /* Adhoc station */
223 'L','I','N','U','X', 0, 0, 0, /* 32 char ESSID */
224 0, 0, 0, 0, 0, 0, 0, 0,
225 0, 0, 0, 0, 0, 0, 0, 0,
226 0, 0, 0, 0, 0, 0, 0, 0,
227 1, 0, /* Active scan, CA Mode */
228 0, 0, 0, 0, 0, 0, /* No default MAC addr */
229 0x7f, 0xff, /* Frag threshold */
230 0x00, 0x80, /* Hop time 128 Kus*/
231 0x01, 0x00, /* Beacon period 256 Kus */
232 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout*/
233 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */
234 0x7f, 0xff, /* RTS threshold */
235 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
236 0x05, /* assoc resp timeout thresh */
237 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max*/
238 0, /* Promiscuous mode */
239 0x0c, 0x0bd, /* Unique word */
240 0x32, /* Slot time */
241 0xff, 0xff, /* roam-low snr, low snr count */
242 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
243 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */
244 /* b4 - b5 differences start here */
245 0x00, 0x3f, /* CW max */
246 0x00, 0x0f, /* CW min */
247 0x04, 0x08, /* Noise gain, limit offset */
248 0x28, 0x28, /* det rssi, med busy offsets */
249 7, /* det sync thresh */
250 0, 2, 2, /* test mode, min, max */
251 0, /* allow broadcast SSID probe resp */
252 0, 0, /* privacy must start, can join */
253 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */
254 };
255
256 static UCHAR b4_default_startup_parms[] = {
257 0, 0, /* Adhoc station */
258 'L','I','N','U','X', 0, 0, 0, /* 32 char ESSID */
259 0, 0, 0, 0, 0, 0, 0, 0,
260 0, 0, 0, 0, 0, 0, 0, 0,
261 0, 0, 0, 0, 0, 0, 0, 0,
262 1, 0, /* Active scan, CA Mode */
263 0, 0, 0, 0, 0, 0, /* No default MAC addr */
264 0x7f, 0xff, /* Frag threshold */
265 0x02, 0x00, /* Hop time */
266 0x00, 0x01, /* Beacon period */
267 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout*/
268 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */
269 0x7f, 0xff, /* RTS threshold */
270 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
271 0x05, /* assoc resp timeout thresh */
272 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max*/
273 0, /* Promiscuous mode */
274 0x0c, 0x0bd, /* Unique word */
275 0x4e, /* Slot time (TBD seems wrong)*/
276 0xff, 0xff, /* roam-low snr, low snr count */
277 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
278 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */
279 /* b4 - b5 differences start here */
280 0x3f, 0x0f, /* CW max, min */
281 0x04, 0x08, /* Noise gain, limit offset */
282 0x28, 0x28, /* det rssi, med busy offsets */
283 7, /* det sync thresh */
284 0, 2, 2 /* test mode, min, max*/
285 };
286 /*===========================================================================*/
287 static unsigned char eth2_llc[] = {0xaa, 0xaa, 3, 0, 0, 0};
288
289 static char hop_pattern_length[] = { 1,
290 USA_HOP_MOD, EUROPE_HOP_MOD,
291 JAPAN_HOP_MOD, KOREA_HOP_MOD,
292 SPAIN_HOP_MOD, FRANCE_HOP_MOD,
293 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
294 JAPAN_TEST_HOP_MOD
295 };
296
297 #ifdef CONFIG_PROC_FS
298 static char rcsid[] = "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
299 #endif
300
301 /*=============================================================================
302 ray_attach() creates an "instance" of the driver, allocating
303 local data structures for one device. The device is registered
304 with Card Services.
305 The dev_link structure is initialized, but we don't actually
306 configure the card at this point -- we wait until we receive a
307 card insertion event.
308 =============================================================================*/
309 static int ray_probe(struct pcmcia_device *p_dev)
310 {
311 ray_dev_t *local;
312 struct net_device *dev;
313
314 DEBUG(1, "ray_attach()\n");
315
316 /* Allocate space for private device-specific data */
317 dev = alloc_etherdev(sizeof(ray_dev_t));
318 if (!dev)
319 goto fail_alloc_dev;
320
321 local = netdev_priv(dev);
322 local->finder = p_dev;
323
324 /* The io structure describes IO port mapping. None used here */
325 p_dev->io.NumPorts1 = 0;
326 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
327 p_dev->io.IOAddrLines = 5;
328
329 /* Interrupt setup. For PCMCIA, driver takes what's given */
330 p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
331 p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
332 p_dev->irq.Handler = &ray_interrupt;
333
334 /* General socket configuration */
335 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
336 p_dev->conf.IntType = INT_MEMORY_AND_IO;
337 p_dev->conf.ConfigIndex = 1;
338
339 p_dev->priv = dev;
340 p_dev->irq.Instance = dev;
341
342 local->finder = p_dev;
343 local->card_status = CARD_INSERTED;
344 local->authentication_state = UNAUTHENTICATED;
345 local->num_multi = 0;
346 DEBUG(2,"ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n",
347 p_dev,dev,local,&ray_interrupt);
348
349 /* Raylink entries in the device structure */
350 dev->hard_start_xmit = &ray_dev_start_xmit;
351 dev->set_config = &ray_dev_config;
352 dev->get_stats = &ray_get_stats;
353 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
354 dev->wireless_handlers = &ray_handler_def;
355 #ifdef WIRELESS_SPY
356 local->wireless_data.spy_data = &local->spy_data;
357 dev->wireless_data = &local->wireless_data;
358 #endif /* WIRELESS_SPY */
359
360 dev->set_multicast_list = &set_multicast_list;
361
362 DEBUG(2,"ray_cs ray_attach calling ether_setup.)\n");
363 dev->init = &ray_dev_init;
364 dev->open = &ray_open;
365 dev->stop = &ray_dev_close;
366 netif_stop_queue(dev);
367
368 init_timer(&local->timer);
369
370 this_device = p_dev;
371 return ray_config(p_dev);
372
373 fail_alloc_dev:
374 return -ENOMEM;
375 } /* ray_attach */
376 /*=============================================================================
377 This deletes a driver "instance". The device is de-registered
378 with Card Services. If it has been released, all local data
379 structures are freed. Otherwise, the structures will be freed
380 when the device is released.
381 =============================================================================*/
382 static void ray_detach(struct pcmcia_device *link)
383 {
384 struct net_device *dev;
385 ray_dev_t *local;
386
387 DEBUG(1, "ray_detach(0x%p)\n", link);
388
389 this_device = NULL;
390 dev = link->priv;
391
392 ray_release(link);
393
394 local = netdev_priv(dev);
395 del_timer(&local->timer);
396
397 if (link->priv) {
398 if (link->dev_node) unregister_netdev(dev);
399 free_netdev(dev);
400 }
401 DEBUG(2,"ray_cs ray_detach ending\n");
402 } /* ray_detach */
403 /*=============================================================================
404 ray_config() is run after a CARD_INSERTION event
405 is received, to configure the PCMCIA socket, and to make the
406 ethernet device available to the system.
407 =============================================================================*/
408 #define CS_CHECK(fn, ret) \
409 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
410 #define MAX_TUPLE_SIZE 128
411 static int ray_config(struct pcmcia_device *link)
412 {
413 int last_fn = 0, last_ret = 0;
414 int i;
415 win_req_t req;
416 memreq_t mem;
417 struct net_device *dev = (struct net_device *)link->priv;
418 ray_dev_t *local = netdev_priv(dev);
419
420 DEBUG(1, "ray_config(0x%p)\n", link);
421
422 /* Determine card type and firmware version */
423 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n",
424 link->prod_id[0] ? link->prod_id[0] : " ",
425 link->prod_id[1] ? link->prod_id[1] : " ",
426 link->prod_id[2] ? link->prod_id[2] : " ",
427 link->prod_id[3] ? link->prod_id[3] : " ");
428
429 /* Now allocate an interrupt line. Note that this does not
430 actually assign a handler to the interrupt.
431 */
432 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
433 dev->irq = link->irq.AssignedIRQ;
434
435 /* This actually configures the PCMCIA socket -- setting up
436 the I/O windows and the interrupt mapping.
437 */
438 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
439
440 /*** Set up 32k window for shared memory (transmit and control) ************/
441 req.Attributes = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
442 req.Base = 0;
443 req.Size = 0x8000;
444 req.AccessSpeed = ray_mem_speed;
445 CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &link->win));
446 mem.CardOffset = 0x0000; mem.Page = 0;
447 CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem));
448 local->sram = ioremap(req.Base,req.Size);
449
450 /*** Set up 16k window for shared memory (receive buffer) ***************/
451 req.Attributes = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
452 req.Base = 0;
453 req.Size = 0x4000;
454 req.AccessSpeed = ray_mem_speed;
455 CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &local->rmem_handle));
456 mem.CardOffset = 0x8000; mem.Page = 0;
457 CS_CHECK(MapMemPage, pcmcia_map_mem_page(local->rmem_handle, &mem));
458 local->rmem = ioremap(req.Base,req.Size);
459
460 /*** Set up window for attribute memory ***********************************/
461 req.Attributes = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
462 req.Base = 0;
463 req.Size = 0x1000;
464 req.AccessSpeed = ray_mem_speed;
465 CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &local->amem_handle));
466 mem.CardOffset = 0x0000; mem.Page = 0;
467 CS_CHECK(MapMemPage, pcmcia_map_mem_page(local->amem_handle, &mem));
468 local->amem = ioremap(req.Base,req.Size);
469
470 DEBUG(3,"ray_config sram=%p\n",local->sram);
471 DEBUG(3,"ray_config rmem=%p\n",local->rmem);
472 DEBUG(3,"ray_config amem=%p\n",local->amem);
473 if (ray_init(dev) < 0) {
474 ray_release(link);
475 return -ENODEV;
476 }
477
478 SET_NETDEV_DEV(dev, &handle_to_dev(link));
479 i = register_netdev(dev);
480 if (i != 0) {
481 printk("ray_config register_netdev() failed\n");
482 ray_release(link);
483 return i;
484 }
485
486 strcpy(local->node.dev_name, dev->name);
487 link->dev_node = &local->node;
488
489 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n",
490 dev->name, dev->irq, dev->dev_addr);
491
492 return 0;
493
494 cs_failed:
495 cs_error(link, last_fn, last_ret);
496
497 ray_release(link);
498 return -ENODEV;
499 } /* ray_config */
500
501 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
502 {
503 return dev->sram + CCS_BASE;
504 }
505
506 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
507 {
508 /*
509 * This looks nonsensical, since there is a separate
510 * RCS_BASE. But the difference between a "struct rcs"
511 * and a "struct ccs" ends up being in the _index_ off
512 * the base, so the base pointer is the same for both
513 * ccs/rcs.
514 */
515 return dev->sram + CCS_BASE;
516 }
517
518 /*===========================================================================*/
519 static int ray_init(struct net_device *dev)
520 {
521 int i;
522 UCHAR *p;
523 struct ccs __iomem *pccs;
524 ray_dev_t *local = netdev_priv(dev);
525 struct pcmcia_device *link = local->finder;
526 DEBUG(1, "ray_init(0x%p)\n", dev);
527 if (!(pcmcia_dev_present(link))) {
528 DEBUG(0,"ray_init - device not present\n");
529 return -1;
530 }
531
532 local->net_type = net_type;
533 local->sta_type = TYPE_STA;
534
535 /* Copy the startup results to local memory */
536 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,\
537 sizeof(struct startup_res_6));
538
539 /* Check Power up test status and get mac address from card */
540 if (local->startup_res.startup_word != 0x80) {
541 printk(KERN_INFO "ray_init ERROR card status = %2x\n",
542 local->startup_res.startup_word);
543 local->card_status = CARD_INIT_ERROR;
544 return -1;
545 }
546
547 local->fw_ver = local->startup_res.firmware_version[0];
548 local->fw_bld = local->startup_res.firmware_version[1];
549 local->fw_var = local->startup_res.firmware_version[2];
550 DEBUG(1,"ray_init firmware version %d.%d \n",local->fw_ver, local->fw_bld);
551
552 local->tib_length = 0x20;
553 if ((local->fw_ver == 5) && (local->fw_bld >= 30))
554 local->tib_length = local->startup_res.tib_length;
555 DEBUG(2,"ray_init tib_length = 0x%02x\n", local->tib_length);
556 /* Initialize CCS's to buffer free state */
557 pccs = ccs_base(local);
558 for (i=0; i<NUMBER_OF_CCS; i++) {
559 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
560 }
561 init_startup_params(local);
562
563 /* copy mac address to startup parameters */
564 if (parse_addr(phy_addr, local->sparm.b4.a_mac_addr))
565 {
566 p = local->sparm.b4.a_mac_addr;
567 }
568 else
569 {
570 memcpy(&local->sparm.b4.a_mac_addr,
571 &local->startup_res.station_addr, ADDRLEN);
572 p = local->sparm.b4.a_mac_addr;
573 }
574
575 clear_interrupt(local); /* Clear any interrupt from the card */
576 local->card_status = CARD_AWAITING_PARAM;
577 DEBUG(2,"ray_init ending\n");
578 return 0;
579 } /* ray_init */
580 /*===========================================================================*/
581 /* Download startup parameters to the card and command it to read them */
582 static int dl_startup_params(struct net_device *dev)
583 {
584 int ccsindex;
585 ray_dev_t *local = netdev_priv(dev);
586 struct ccs __iomem *pccs;
587 struct pcmcia_device *link = local->finder;
588
589 DEBUG(1,"dl_startup_params entered\n");
590 if (!(pcmcia_dev_present(link))) {
591 DEBUG(2,"ray_cs dl_startup_params - device not present\n");
592 return -1;
593 }
594
595 /* Copy parameters to host to ECF area */
596 if (local->fw_ver == 0x55)
597 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
598 sizeof(struct b4_startup_params));
599 else
600 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
601 sizeof(struct b5_startup_params));
602
603
604 /* Fill in the CCS fields for the ECF */
605 if ((ccsindex = get_free_ccs(local)) < 0) return -1;
606 local->dl_param_ccs = ccsindex;
607 pccs = ccs_base(local) + ccsindex;
608 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
609 DEBUG(2,"dl_startup_params start ccsindex = %d\n", local->dl_param_ccs);
610 /* Interrupt the firmware to process the command */
611 if (interrupt_ecf(local, ccsindex)) {
612 printk(KERN_INFO "ray dl_startup_params failed - "
613 "ECF not ready for intr\n");
614 local->card_status = CARD_DL_PARAM_ERROR;
615 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
616 return -2;
617 }
618 local->card_status = CARD_DL_PARAM;
619 /* Start kernel timer to wait for dl startup to complete. */
620 local->timer.expires = jiffies + HZ/2;
621 local->timer.data = (long)local;
622 local->timer.function = &verify_dl_startup;
623 add_timer(&local->timer);
624 DEBUG(2,"ray_cs dl_startup_params started timer for verify_dl_startup\n");
625 return 0;
626 } /* dl_startup_params */
627 /*===========================================================================*/
628 static void init_startup_params(ray_dev_t *local)
629 {
630 int i;
631
632 if (country > JAPAN_TEST) country = USA;
633 else
634 if (country < USA) country = USA;
635 /* structure for hop time and beacon period is defined here using
636 * New 802.11D6.1 format. Card firmware is still using old format
637 * until version 6.
638 * Before After
639 * a_hop_time ms byte a_hop_time ms byte
640 * a_hop_time 2s byte a_hop_time ls byte
641 * a_hop_time ls byte a_beacon_period ms byte
642 * a_beacon_period a_beacon_period ls byte
643 *
644 * a_hop_time = uS a_hop_time = KuS
645 * a_beacon_period = hops a_beacon_period = KuS
646 */ /* 64ms = 010000 */
647 if (local->fw_ver == 0x55) {
648 memcpy((UCHAR *)&local->sparm.b4, b4_default_startup_parms,
649 sizeof(struct b4_startup_params));
650 /* Translate sane kus input values to old build 4/5 format */
651 /* i = hop time in uS truncated to 3 bytes */
652 i = (hop_dwell * 1024) & 0xffffff;
653 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
654 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
655 local->sparm.b4.a_beacon_period[0] = 0;
656 local->sparm.b4.a_beacon_period[1] =
657 ((beacon_period/hop_dwell) - 1) & 0xff;
658 local->sparm.b4.a_curr_country_code = country;
659 local->sparm.b4.a_hop_pattern_length =
660 hop_pattern_length[(int)country] - 1;
661 if (bc)
662 {
663 local->sparm.b4.a_ack_timeout = 0x50;
664 local->sparm.b4.a_sifs = 0x3f;
665 }
666 }
667 else { /* Version 5 uses real kus values */
668 memcpy((UCHAR *)&local->sparm.b5, b5_default_startup_parms,
669 sizeof(struct b5_startup_params));
670
671 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
672 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
673 local->sparm.b5.a_beacon_period[0] = (beacon_period >> 8) & 0xff;
674 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
675 if (psm)
676 local->sparm.b5.a_power_mgt_state = 1;
677 local->sparm.b5.a_curr_country_code = country;
678 local->sparm.b5.a_hop_pattern_length =
679 hop_pattern_length[(int)country];
680 }
681
682 local->sparm.b4.a_network_type = net_type & 0x01;
683 local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
684
685 if (essid != NULL)
686 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
687 } /* init_startup_params */
688 /*===========================================================================*/
689 static void verify_dl_startup(u_long data)
690 {
691 ray_dev_t *local = (ray_dev_t *)data;
692 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
693 UCHAR status;
694 struct pcmcia_device *link = local->finder;
695
696 if (!(pcmcia_dev_present(link))) {
697 DEBUG(2,"ray_cs verify_dl_startup - device not present\n");
698 return;
699 }
700 #ifdef PCMCIA_DEBUG
701 if (pc_debug > 2) {
702 int i;
703 printk(KERN_DEBUG "verify_dl_startup parameters sent via ccs %d:\n",
704 local->dl_param_ccs);
705 for (i=0; i<sizeof(struct b5_startup_params); i++) {
706 printk(" %2x", (unsigned int) readb(local->sram + HOST_TO_ECF_BASE + i));
707 }
708 printk("\n");
709 }
710 #endif
711
712 status = readb(&pccs->buffer_status);
713 if (status!= CCS_BUFFER_FREE)
714 {
715 printk(KERN_INFO "Download startup params failed. Status = %d\n",
716 status);
717 local->card_status = CARD_DL_PARAM_ERROR;
718 return;
719 }
720 if (local->sparm.b4.a_network_type == ADHOC)
721 start_net((u_long)local);
722 else
723 join_net((u_long)local);
724
725 return;
726 } /* end verify_dl_startup */
727 /*===========================================================================*/
728 /* Command card to start a network */
729 static void start_net(u_long data)
730 {
731 ray_dev_t *local = (ray_dev_t *)data;
732 struct ccs __iomem *pccs;
733 int ccsindex;
734 struct pcmcia_device *link = local->finder;
735 if (!(pcmcia_dev_present(link))) {
736 DEBUG(2,"ray_cs start_net - device not present\n");
737 return;
738 }
739 /* Fill in the CCS fields for the ECF */
740 if ((ccsindex = get_free_ccs(local)) < 0) return;
741 pccs = ccs_base(local) + ccsindex;
742 writeb(CCS_START_NETWORK, &pccs->cmd);
743 writeb(0, &pccs->var.start_network.update_param);
744 /* Interrupt the firmware to process the command */
745 if (interrupt_ecf(local, ccsindex)) {
746 DEBUG(1,"ray start net failed - card not ready for intr\n");
747 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
748 return;
749 }
750 local->card_status = CARD_DOING_ACQ;
751 return;
752 } /* end start_net */
753 /*===========================================================================*/
754 /* Command card to join a network */
755 static void join_net(u_long data)
756 {
757 ray_dev_t *local = (ray_dev_t *)data;
758
759 struct ccs __iomem *pccs;
760 int ccsindex;
761 struct pcmcia_device *link = local->finder;
762
763 if (!(pcmcia_dev_present(link))) {
764 DEBUG(2,"ray_cs join_net - device not present\n");
765 return;
766 }
767 /* Fill in the CCS fields for the ECF */
768 if ((ccsindex = get_free_ccs(local)) < 0) return;
769 pccs = ccs_base(local) + ccsindex;
770 writeb(CCS_JOIN_NETWORK, &pccs->cmd);
771 writeb(0, &pccs->var.join_network.update_param);
772 writeb(0, &pccs->var.join_network.net_initiated);
773 /* Interrupt the firmware to process the command */
774 if (interrupt_ecf(local, ccsindex)) {
775 DEBUG(1,"ray join net failed - card not ready for intr\n");
776 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
777 return;
778 }
779 local->card_status = CARD_DOING_ACQ;
780 return;
781 }
782 /*============================================================================
783 After a card is removed, ray_release() will unregister the net
784 device, and release the PCMCIA configuration. If the device is
785 still open, this will be postponed until it is closed.
786 =============================================================================*/
787 static void ray_release(struct pcmcia_device *link)
788 {
789 struct net_device *dev = link->priv;
790 ray_dev_t *local = netdev_priv(dev);
791 int i;
792
793 DEBUG(1, "ray_release(0x%p)\n", link);
794
795 del_timer(&local->timer);
796
797 iounmap(local->sram);
798 iounmap(local->rmem);
799 iounmap(local->amem);
800 /* Do bother checking to see if these succeed or not */
801 i = pcmcia_release_window(local->amem_handle);
802 if ( i != 0 ) DEBUG(0,"ReleaseWindow(local->amem) ret = %x\n",i);
803 i = pcmcia_release_window(local->rmem_handle);
804 if ( i != 0 ) DEBUG(0,"ReleaseWindow(local->rmem) ret = %x\n",i);
805 pcmcia_disable_device(link);
806
807 DEBUG(2,"ray_release ending\n");
808 }
809
810 static int ray_suspend(struct pcmcia_device *link)
811 {
812 struct net_device *dev = link->priv;
813
814 if (link->open)
815 netif_device_detach(dev);
816
817 return 0;
818 }
819
820 static int ray_resume(struct pcmcia_device *link)
821 {
822 struct net_device *dev = link->priv;
823
824 if (link->open) {
825 ray_reset(dev);
826 netif_device_attach(dev);
827 }
828
829 return 0;
830 }
831
832 /*===========================================================================*/
833 static int ray_dev_init(struct net_device *dev)
834 {
835 #ifdef RAY_IMMEDIATE_INIT
836 int i;
837 #endif /* RAY_IMMEDIATE_INIT */
838 ray_dev_t *local = netdev_priv(dev);
839 struct pcmcia_device *link = local->finder;
840
841 DEBUG(1,"ray_dev_init(dev=%p)\n",dev);
842 if (!(pcmcia_dev_present(link))) {
843 DEBUG(2,"ray_dev_init - device not present\n");
844 return -1;
845 }
846 #ifdef RAY_IMMEDIATE_INIT
847 /* Download startup parameters */
848 if ( (i = dl_startup_params(dev)) < 0)
849 {
850 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
851 "returns 0x%x\n",i);
852 return -1;
853 }
854 #else /* RAY_IMMEDIATE_INIT */
855 /* Postpone the card init so that we can still configure the card,
856 * for example using the Wireless Extensions. The init will happen
857 * in ray_open() - Jean II */
858 DEBUG(1,"ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
859 local->card_status);
860 #endif /* RAY_IMMEDIATE_INIT */
861
862 /* copy mac and broadcast addresses to linux device */
863 memcpy(&dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
864 memset(dev->broadcast, 0xff, ETH_ALEN);
865
866 DEBUG(2,"ray_dev_init ending\n");
867 return 0;
868 }
869 /*===========================================================================*/
870 static int ray_dev_config(struct net_device *dev, struct ifmap *map)
871 {
872 ray_dev_t *local = netdev_priv(dev);
873 struct pcmcia_device *link = local->finder;
874 /* Dummy routine to satisfy device structure */
875 DEBUG(1,"ray_dev_config(dev=%p,ifmap=%p)\n",dev,map);
876 if (!(pcmcia_dev_present(link))) {
877 DEBUG(2,"ray_dev_config - device not present\n");
878 return -1;
879 }
880
881 return 0;
882 }
883 /*===========================================================================*/
884 static int ray_dev_start_xmit(struct sk_buff *skb, struct net_device *dev)
885 {
886 ray_dev_t *local = netdev_priv(dev);
887 struct pcmcia_device *link = local->finder;
888 short length = skb->len;
889
890 if (!(pcmcia_dev_present(link))) {
891 DEBUG(2,"ray_dev_start_xmit - device not present\n");
892 return -1;
893 }
894 DEBUG(3,"ray_dev_start_xmit(skb=%p, dev=%p)\n",skb,dev);
895 if (local->authentication_state == NEED_TO_AUTH) {
896 DEBUG(0,"ray_cs Sending authentication request.\n");
897 if (!build_auth_frame (local, local->auth_id, OPEN_AUTH_REQUEST)) {
898 local->authentication_state = AUTHENTICATED;
899 netif_stop_queue(dev);
900 return 1;
901 }
902 }
903
904 if (length < ETH_ZLEN)
905 {
906 if (skb_padto(skb, ETH_ZLEN))
907 return 0;
908 length = ETH_ZLEN;
909 }
910 switch (ray_hw_xmit( skb->data, length, dev, DATA_TYPE)) {
911 case XMIT_NO_CCS:
912 case XMIT_NEED_AUTH:
913 netif_stop_queue(dev);
914 return 1;
915 case XMIT_NO_INTR:
916 case XMIT_MSG_BAD:
917 case XMIT_OK:
918 default:
919 dev->trans_start = jiffies;
920 dev_kfree_skb(skb);
921 return 0;
922 }
923 return 0;
924 } /* ray_dev_start_xmit */
925 /*===========================================================================*/
926 static int ray_hw_xmit(unsigned char* data, int len, struct net_device* dev,
927 UCHAR msg_type)
928 {
929 ray_dev_t *local = netdev_priv(dev);
930 struct ccs __iomem *pccs;
931 int ccsindex;
932 int offset;
933 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */
934 short int addr; /* Address of xmit buffer in card space */
935
936 DEBUG(3,"ray_hw_xmit(data=%p, len=%d, dev=%p)\n",data,len,dev);
937 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE)
938 {
939 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",len);
940 return XMIT_MSG_BAD;
941 }
942 switch (ccsindex = get_free_tx_ccs(local)) {
943 case ECCSBUSY:
944 DEBUG(2,"ray_hw_xmit tx_ccs table busy\n");
945 case ECCSFULL:
946 DEBUG(2,"ray_hw_xmit No free tx ccs\n");
947 case ECARDGONE:
948 netif_stop_queue(dev);
949 return XMIT_NO_CCS;
950 default:
951 break;
952 }
953 addr = TX_BUF_BASE + (ccsindex << 11);
954
955 if (msg_type == DATA_TYPE) {
956 local->stats.tx_bytes += len;
957 local->stats.tx_packets++;
958 }
959
960 ptx = local->sram + addr;
961
962 ray_build_header(local, ptx, msg_type, data);
963 if (translate) {
964 offset = translate_frame(local, ptx, data, len);
965 }
966 else { /* Encapsulate frame */
967 /* TBD TIB length will move address of ptx->var */
968 memcpy_toio(&ptx->var, data, len);
969 offset = 0;
970 }
971
972 /* fill in the CCS */
973 pccs = ccs_base(local) + ccsindex;
974 len += TX_HEADER_LENGTH + offset;
975 writeb(CCS_TX_REQUEST, &pccs->cmd);
976 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
977 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
978 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
979 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
980 /* TBD still need psm_cam? */
981 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
982 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
983 writeb(0, &pccs->var.tx_request.antenna);
984 DEBUG(3,"ray_hw_xmit default_tx_rate = 0x%x\n",\
985 local->net_default_tx_rate);
986
987 /* Interrupt the firmware to process the command */
988 if (interrupt_ecf(local, ccsindex)) {
989 DEBUG(2,"ray_hw_xmit failed - ECF not ready for intr\n");
990 /* TBD very inefficient to copy packet to buffer, and then not
991 send it, but the alternative is to queue the messages and that
992 won't be done for a while. Maybe set tbusy until a CCS is free?
993 */
994 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
995 return XMIT_NO_INTR;
996 }
997 return XMIT_OK;
998 } /* end ray_hw_xmit */
999 /*===========================================================================*/
1000 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx, unsigned char *data,
1001 int len)
1002 {
1003 __be16 proto = ((struct ethhdr *)data)->h_proto;
1004 if (ntohs(proto) >= 1536) { /* DIX II ethernet frame */
1005 DEBUG(3,"ray_cs translate_frame DIX II\n");
1006 /* Copy LLC header to card buffer */
1007 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
1008 memcpy_toio( ((void __iomem *)&ptx->var) + sizeof(eth2_llc), (UCHAR *)&proto, 2);
1009 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
1010 /* This is the selective translation table, only 2 entries */
1011 writeb(0xf8, &((struct snaphdr_t __iomem *)ptx->var)->org[3]);
1012 }
1013 /* Copy body of ethernet packet without ethernet header */
1014 memcpy_toio((void __iomem *)&ptx->var + sizeof(struct snaphdr_t), \
1015 data + ETH_HLEN, len - ETH_HLEN);
1016 return (int) sizeof(struct snaphdr_t) - ETH_HLEN;
1017 }
1018 else { /* already 802 type, and proto is length */
1019 DEBUG(3,"ray_cs translate_frame 802\n");
1020 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
1021 DEBUG(3,"ray_cs translate_frame evil IPX\n");
1022 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
1023 return 0 - ETH_HLEN;
1024 }
1025 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
1026 return 0 - ETH_HLEN;
1027 }
1028 /* TBD do other frame types */
1029 } /* end translate_frame */
1030 /*===========================================================================*/
1031 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx, UCHAR msg_type,
1032 unsigned char *data)
1033 {
1034 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
1035 /*** IEEE 802.11 Address field assignments *************
1036 TODS FROMDS addr_1 addr_2 addr_3 addr_4
1037 Adhoc 0 0 dest src (terminal) BSSID N/A
1038 AP to Terminal 0 1 dest AP(BSSID) source N/A
1039 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A
1040 AP to AP 1 1 dest AP src AP dest source
1041 *******************************************************/
1042 if (local->net_type == ADHOC) {
1043 writeb(0, &ptx->mac.frame_ctl_2);
1044 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest, 2 * ADDRLEN);
1045 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
1046 }
1047 else /* infrastructure */
1048 {
1049 if (local->sparm.b4.a_acting_as_ap_status)
1050 {
1051 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
1052 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest, ADDRLEN);
1053 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
1054 memcpy_toio(ptx->mac.addr_3, ((struct ethhdr *)data)->h_source, ADDRLEN);
1055 }
1056 else /* Terminal */
1057 {
1058 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
1059 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1060 memcpy_toio(ptx->mac.addr_2, ((struct ethhdr *)data)->h_source, ADDRLEN);
1061 memcpy_toio(ptx->mac.addr_3, ((struct ethhdr *)data)->h_dest, ADDRLEN);
1062 }
1063 }
1064 } /* end encapsulate_frame */
1065
1066
1067 /*===========================================================================*/
1068
1069 static void netdev_get_drvinfo(struct net_device *dev,
1070 struct ethtool_drvinfo *info)
1071 {
1072 strcpy(info->driver, "ray_cs");
1073 }
1074
1075 static const struct ethtool_ops netdev_ethtool_ops = {
1076 .get_drvinfo = netdev_get_drvinfo,
1077 };
1078
1079 /*====================================================================*/
1080
1081 /*------------------------------------------------------------------*/
1082 /*
1083 * Wireless Handler : get protocol name
1084 */
1085 static int ray_get_name(struct net_device *dev,
1086 struct iw_request_info *info,
1087 char *cwrq,
1088 char *extra)
1089 {
1090 strcpy(cwrq, "IEEE 802.11-FH");
1091 return 0;
1092 }
1093
1094 /*------------------------------------------------------------------*/
1095 /*
1096 * Wireless Handler : set frequency
1097 */
1098 static int ray_set_freq(struct net_device *dev,
1099 struct iw_request_info *info,
1100 struct iw_freq *fwrq,
1101 char *extra)
1102 {
1103 ray_dev_t *local = netdev_priv(dev);
1104 int err = -EINPROGRESS; /* Call commit handler */
1105
1106 /* Reject if card is already initialised */
1107 if(local->card_status != CARD_AWAITING_PARAM)
1108 return -EBUSY;
1109
1110 /* Setting by channel number */
1111 if ((fwrq->m > USA_HOP_MOD) || (fwrq->e > 0))
1112 err = -EOPNOTSUPP;
1113 else
1114 local->sparm.b5.a_hop_pattern = fwrq->m;
1115
1116 return err;
1117 }
1118
1119 /*------------------------------------------------------------------*/
1120 /*
1121 * Wireless Handler : get frequency
1122 */
1123 static int ray_get_freq(struct net_device *dev,
1124 struct iw_request_info *info,
1125 struct iw_freq *fwrq,
1126 char *extra)
1127 {
1128 ray_dev_t *local = netdev_priv(dev);
1129
1130 fwrq->m = local->sparm.b5.a_hop_pattern;
1131 fwrq->e = 0;
1132 return 0;
1133 }
1134
1135 /*------------------------------------------------------------------*/
1136 /*
1137 * Wireless Handler : set ESSID
1138 */
1139 static int ray_set_essid(struct net_device *dev,
1140 struct iw_request_info *info,
1141 struct iw_point *dwrq,
1142 char *extra)
1143 {
1144 ray_dev_t *local = netdev_priv(dev);
1145
1146 /* Reject if card is already initialised */
1147 if(local->card_status != CARD_AWAITING_PARAM)
1148 return -EBUSY;
1149
1150 /* Check if we asked for `any' */
1151 if(dwrq->flags == 0) {
1152 /* Corey : can you do that ? */
1153 return -EOPNOTSUPP;
1154 } else {
1155 /* Check the size of the string */
1156 if(dwrq->length > IW_ESSID_MAX_SIZE) {
1157 return -E2BIG;
1158 }
1159
1160 /* Set the ESSID in the card */
1161 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1162 memcpy(local->sparm.b5.a_current_ess_id, extra, dwrq->length);
1163 }
1164
1165 return -EINPROGRESS; /* Call commit handler */
1166 }
1167
1168 /*------------------------------------------------------------------*/
1169 /*
1170 * Wireless Handler : get ESSID
1171 */
1172 static int ray_get_essid(struct net_device *dev,
1173 struct iw_request_info *info,
1174 struct iw_point *dwrq,
1175 char *extra)
1176 {
1177 ray_dev_t *local = netdev_priv(dev);
1178
1179 /* Get the essid that was set */
1180 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1181
1182 /* Push it out ! */
1183 dwrq->length = strlen(extra);
1184 dwrq->flags = 1; /* active */
1185
1186 return 0;
1187 }
1188
1189 /*------------------------------------------------------------------*/
1190 /*
1191 * Wireless Handler : get AP address
1192 */
1193 static int ray_get_wap(struct net_device *dev,
1194 struct iw_request_info *info,
1195 struct sockaddr *awrq,
1196 char *extra)
1197 {
1198 ray_dev_t *local = netdev_priv(dev);
1199
1200 memcpy(awrq->sa_data, local->bss_id, ETH_ALEN);
1201 awrq->sa_family = ARPHRD_ETHER;
1202
1203 return 0;
1204 }
1205
1206 /*------------------------------------------------------------------*/
1207 /*
1208 * Wireless Handler : set Bit-Rate
1209 */
1210 static int ray_set_rate(struct net_device *dev,
1211 struct iw_request_info *info,
1212 struct iw_param *vwrq,
1213 char *extra)
1214 {
1215 ray_dev_t *local = netdev_priv(dev);
1216
1217 /* Reject if card is already initialised */
1218 if(local->card_status != CARD_AWAITING_PARAM)
1219 return -EBUSY;
1220
1221 /* Check if rate is in range */
1222 if((vwrq->value != 1000000) && (vwrq->value != 2000000))
1223 return -EINVAL;
1224
1225 /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1226 if((local->fw_ver == 0x55) && /* Please check */
1227 (vwrq->value == 2000000))
1228 local->net_default_tx_rate = 3;
1229 else
1230 local->net_default_tx_rate = vwrq->value/500000;
1231
1232 return 0;
1233 }
1234
1235 /*------------------------------------------------------------------*/
1236 /*
1237 * Wireless Handler : get Bit-Rate
1238 */
1239 static int ray_get_rate(struct net_device *dev,
1240 struct iw_request_info *info,
1241 struct iw_param *vwrq,
1242 char *extra)
1243 {
1244 ray_dev_t *local = netdev_priv(dev);
1245
1246 if(local->net_default_tx_rate == 3)
1247 vwrq->value = 2000000; /* Hum... */
1248 else
1249 vwrq->value = local->net_default_tx_rate * 500000;
1250 vwrq->fixed = 0; /* We are in auto mode */
1251
1252 return 0;
1253 }
1254
1255 /*------------------------------------------------------------------*/
1256 /*
1257 * Wireless Handler : set RTS threshold
1258 */
1259 static int ray_set_rts(struct net_device *dev,
1260 struct iw_request_info *info,
1261 struct iw_param *vwrq,
1262 char *extra)
1263 {
1264 ray_dev_t *local = netdev_priv(dev);
1265 int rthr = vwrq->value;
1266
1267 /* Reject if card is already initialised */
1268 if(local->card_status != CARD_AWAITING_PARAM)
1269 return -EBUSY;
1270
1271 /* if(wrq->u.rts.fixed == 0) we should complain */
1272 if(vwrq->disabled)
1273 rthr = 32767;
1274 else {
1275 if((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */
1276 return -EINVAL;
1277 }
1278 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1279 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1280
1281 return -EINPROGRESS; /* Call commit handler */
1282 }
1283
1284
1285 /*------------------------------------------------------------------*/
1286 /*
1287 * Wireless Handler : get RTS threshold
1288 */
1289 static int ray_get_rts(struct net_device *dev,
1290 struct iw_request_info *info,
1291 struct iw_param *vwrq,
1292 char *extra)
1293 {
1294 ray_dev_t *local = netdev_priv(dev);
1295
1296 vwrq->value = (local->sparm.b5.a_rts_threshold[0] << 8)
1297 + local->sparm.b5.a_rts_threshold[1];
1298 vwrq->disabled = (vwrq->value == 32767);
1299 vwrq->fixed = 1;
1300
1301 return 0;
1302 }
1303
1304 /*------------------------------------------------------------------*/
1305 /*
1306 * Wireless Handler : set Fragmentation threshold
1307 */
1308 static int ray_set_frag(struct net_device *dev,
1309 struct iw_request_info *info,
1310 struct iw_param *vwrq,
1311 char *extra)
1312 {
1313 ray_dev_t *local = netdev_priv(dev);
1314 int fthr = vwrq->value;
1315
1316 /* Reject if card is already initialised */
1317 if(local->card_status != CARD_AWAITING_PARAM)
1318 return -EBUSY;
1319
1320 /* if(wrq->u.frag.fixed == 0) should complain */
1321 if(vwrq->disabled)
1322 fthr = 32767;
1323 else {
1324 if((fthr < 256) || (fthr > 2347)) /* To check out ! */
1325 return -EINVAL;
1326 }
1327 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1328 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1329
1330 return -EINPROGRESS; /* Call commit handler */
1331 }
1332
1333 /*------------------------------------------------------------------*/
1334 /*
1335 * Wireless Handler : get Fragmentation threshold
1336 */
1337 static int ray_get_frag(struct net_device *dev,
1338 struct iw_request_info *info,
1339 struct iw_param *vwrq,
1340 char *extra)
1341 {
1342 ray_dev_t *local = netdev_priv(dev);
1343
1344 vwrq->value = (local->sparm.b5.a_frag_threshold[0] << 8)
1345 + local->sparm.b5.a_frag_threshold[1];
1346 vwrq->disabled = (vwrq->value == 32767);
1347 vwrq->fixed = 1;
1348
1349 return 0;
1350 }
1351
1352 /*------------------------------------------------------------------*/
1353 /*
1354 * Wireless Handler : set Mode of Operation
1355 */
1356 static int ray_set_mode(struct net_device *dev,
1357 struct iw_request_info *info,
1358 __u32 *uwrq,
1359 char *extra)
1360 {
1361 ray_dev_t *local = netdev_priv(dev);
1362 int err = -EINPROGRESS; /* Call commit handler */
1363 char card_mode = 1;
1364
1365 /* Reject if card is already initialised */
1366 if(local->card_status != CARD_AWAITING_PARAM)
1367 return -EBUSY;
1368
1369 switch (*uwrq)
1370 {
1371 case IW_MODE_ADHOC:
1372 card_mode = 0;
1373 // Fall through
1374 case IW_MODE_INFRA:
1375 local->sparm.b5.a_network_type = card_mode;
1376 break;
1377 default:
1378 err = -EINVAL;
1379 }
1380
1381 return err;
1382 }
1383
1384 /*------------------------------------------------------------------*/
1385 /*
1386 * Wireless Handler : get Mode of Operation
1387 */
1388 static int ray_get_mode(struct net_device *dev,
1389 struct iw_request_info *info,
1390 __u32 *uwrq,
1391 char *extra)
1392 {
1393 ray_dev_t *local = netdev_priv(dev);
1394
1395 if(local->sparm.b5.a_network_type)
1396 *uwrq = IW_MODE_INFRA;
1397 else
1398 *uwrq = IW_MODE_ADHOC;
1399
1400 return 0;
1401 }
1402
1403 /*------------------------------------------------------------------*/
1404 /*
1405 * Wireless Handler : get range info
1406 */
1407 static int ray_get_range(struct net_device *dev,
1408 struct iw_request_info *info,
1409 struct iw_point *dwrq,
1410 char *extra)
1411 {
1412 struct iw_range *range = (struct iw_range *) extra;
1413
1414 memset((char *) range, 0, sizeof(struct iw_range));
1415
1416 /* Set the length (very important for backward compatibility) */
1417 dwrq->length = sizeof(struct iw_range);
1418
1419 /* Set the Wireless Extension versions */
1420 range->we_version_compiled = WIRELESS_EXT;
1421 range->we_version_source = 9;
1422
1423 /* Set information in the range struct */
1424 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */
1425 range->num_channels = hop_pattern_length[(int)country];
1426 range->num_frequency = 0;
1427 range->max_qual.qual = 0;
1428 range->max_qual.level = 255; /* What's the correct value ? */
1429 range->max_qual.noise = 255; /* Idem */
1430 range->num_bitrates = 2;
1431 range->bitrate[0] = 1000000; /* 1 Mb/s */
1432 range->bitrate[1] = 2000000; /* 2 Mb/s */
1433 return 0;
1434 }
1435
1436 /*------------------------------------------------------------------*/
1437 /*
1438 * Wireless Private Handler : set framing mode
1439 */
1440 static int ray_set_framing(struct net_device *dev,
1441 struct iw_request_info *info,
1442 union iwreq_data *wrqu,
1443 char *extra)
1444 {
1445 translate = *(extra); /* Set framing mode */
1446
1447 return 0;
1448 }
1449
1450 /*------------------------------------------------------------------*/
1451 /*
1452 * Wireless Private Handler : get framing mode
1453 */
1454 static int ray_get_framing(struct net_device *dev,
1455 struct iw_request_info *info,
1456 union iwreq_data *wrqu,
1457 char *extra)
1458 {
1459 *(extra) = translate;
1460
1461 return 0;
1462 }
1463
1464 /*------------------------------------------------------------------*/
1465 /*
1466 * Wireless Private Handler : get country
1467 */
1468 static int ray_get_country(struct net_device *dev,
1469 struct iw_request_info *info,
1470 union iwreq_data *wrqu,
1471 char *extra)
1472 {
1473 *(extra) = country;
1474
1475 return 0;
1476 }
1477
1478 /*------------------------------------------------------------------*/
1479 /*
1480 * Commit handler : called after a bunch of SET operations
1481 */
1482 static int ray_commit(struct net_device *dev,
1483 struct iw_request_info *info, /* NULL */
1484 void *zwrq, /* NULL */
1485 char *extra) /* NULL */
1486 {
1487 return 0;
1488 }
1489
1490 /*------------------------------------------------------------------*/
1491 /*
1492 * Stats handler : return Wireless Stats
1493 */
1494 static iw_stats * ray_get_wireless_stats(struct net_device * dev)
1495 {
1496 ray_dev_t * local = netdev_priv(dev);
1497 struct pcmcia_device *link = local->finder;
1498 struct status __iomem *p = local->sram + STATUS_BASE;
1499
1500 if(local == (ray_dev_t *) NULL)
1501 return (iw_stats *) NULL;
1502
1503 local->wstats.status = local->card_status;
1504 #ifdef WIRELESS_SPY
1505 if((local->spy_data.spy_number > 0) && (local->sparm.b5.a_network_type == 0))
1506 {
1507 /* Get it from the first node in spy list */
1508 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1509 local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1510 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1511 local->wstats.qual.updated = local->spy_data.spy_stat[0].updated;
1512 }
1513 #endif /* WIRELESS_SPY */
1514
1515 if(pcmcia_dev_present(link)) {
1516 local->wstats.qual.noise = readb(&p->rxnoise);
1517 local->wstats.qual.updated |= 4;
1518 }
1519
1520 return &local->wstats;
1521 } /* end ray_get_wireless_stats */
1522
1523 /*------------------------------------------------------------------*/
1524 /*
1525 * Structures to export the Wireless Handlers
1526 */
1527
1528 static const iw_handler ray_handler[] = {
1529 [SIOCSIWCOMMIT-SIOCIWFIRST] = (iw_handler) ray_commit,
1530 [SIOCGIWNAME -SIOCIWFIRST] = (iw_handler) ray_get_name,
1531 [SIOCSIWFREQ -SIOCIWFIRST] = (iw_handler) ray_set_freq,
1532 [SIOCGIWFREQ -SIOCIWFIRST] = (iw_handler) ray_get_freq,
1533 [SIOCSIWMODE -SIOCIWFIRST] = (iw_handler) ray_set_mode,
1534 [SIOCGIWMODE -SIOCIWFIRST] = (iw_handler) ray_get_mode,
1535 [SIOCGIWRANGE -SIOCIWFIRST] = (iw_handler) ray_get_range,
1536 #ifdef WIRELESS_SPY
1537 [SIOCSIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_set_spy,
1538 [SIOCGIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_get_spy,
1539 [SIOCSIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_set_thrspy,
1540 [SIOCGIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_get_thrspy,
1541 #endif /* WIRELESS_SPY */
1542 [SIOCGIWAP -SIOCIWFIRST] = (iw_handler) ray_get_wap,
1543 [SIOCSIWESSID -SIOCIWFIRST] = (iw_handler) ray_set_essid,
1544 [SIOCGIWESSID -SIOCIWFIRST] = (iw_handler) ray_get_essid,
1545 [SIOCSIWRATE -SIOCIWFIRST] = (iw_handler) ray_set_rate,
1546 [SIOCGIWRATE -SIOCIWFIRST] = (iw_handler) ray_get_rate,
1547 [SIOCSIWRTS -SIOCIWFIRST] = (iw_handler) ray_set_rts,
1548 [SIOCGIWRTS -SIOCIWFIRST] = (iw_handler) ray_get_rts,
1549 [SIOCSIWFRAG -SIOCIWFIRST] = (iw_handler) ray_set_frag,
1550 [SIOCGIWFRAG -SIOCIWFIRST] = (iw_handler) ray_get_frag,
1551 };
1552
1553 #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */
1554 #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */
1555 #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */
1556
1557 static const iw_handler ray_private_handler[] = {
1558 [0] = (iw_handler) ray_set_framing,
1559 [1] = (iw_handler) ray_get_framing,
1560 [3] = (iw_handler) ray_get_country,
1561 };
1562
1563 static const struct iw_priv_args ray_private_args[] = {
1564 /* cmd, set_args, get_args, name */
1565 { SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, "set_framing" },
1566 { SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "get_framing" },
1567 { SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "get_country" },
1568 };
1569
1570 static const struct iw_handler_def ray_handler_def =
1571 {
1572 .num_standard = ARRAY_SIZE(ray_handler),
1573 .num_private = ARRAY_SIZE(ray_private_handler),
1574 .num_private_args = ARRAY_SIZE(ray_private_args),
1575 .standard = ray_handler,
1576 .private = ray_private_handler,
1577 .private_args = ray_private_args,
1578 .get_wireless_stats = ray_get_wireless_stats,
1579 };
1580
1581 /*===========================================================================*/
1582 static int ray_open(struct net_device *dev)
1583 {
1584 ray_dev_t *local = netdev_priv(dev);
1585 struct pcmcia_device *link;
1586 link = local->finder;
1587
1588 DEBUG(1, "ray_open('%s')\n", dev->name);
1589
1590 if (link->open == 0)
1591 local->num_multi = 0;
1592 link->open++;
1593
1594 /* If the card is not started, time to start it ! - Jean II */
1595 if(local->card_status == CARD_AWAITING_PARAM) {
1596 int i;
1597
1598 DEBUG(1,"ray_open: doing init now !\n");
1599
1600 /* Download startup parameters */
1601 if ( (i = dl_startup_params(dev)) < 0)
1602 {
1603 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
1604 "returns 0x%x\n",i);
1605 return -1;
1606 }
1607 }
1608
1609 if (sniffer) netif_stop_queue(dev);
1610 else netif_start_queue(dev);
1611
1612 DEBUG(2,"ray_open ending\n");
1613 return 0;
1614 } /* end ray_open */
1615 /*===========================================================================*/
1616 static int ray_dev_close(struct net_device *dev)
1617 {
1618 ray_dev_t *local = netdev_priv(dev);
1619 struct pcmcia_device *link;
1620 link = local->finder;
1621
1622 DEBUG(1, "ray_dev_close('%s')\n", dev->name);
1623
1624 link->open--;
1625 netif_stop_queue(dev);
1626
1627 /* In here, we should stop the hardware (stop card from beeing active)
1628 * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1629 * card is closed we can chage its configuration.
1630 * Probably also need a COR reset to get sane state - Jean II */
1631
1632 return 0;
1633 } /* end ray_dev_close */
1634 /*===========================================================================*/
1635 static void ray_reset(struct net_device *dev) {
1636 DEBUG(1,"ray_reset entered\n");
1637 return;
1638 }
1639 /*===========================================================================*/
1640 /* Cause a firmware interrupt if it is ready for one */
1641 /* Return nonzero if not ready */
1642 static int interrupt_ecf(ray_dev_t *local, int ccs)
1643 {
1644 int i = 50;
1645 struct pcmcia_device *link = local->finder;
1646
1647 if (!(pcmcia_dev_present(link))) {
1648 DEBUG(2,"ray_cs interrupt_ecf - device not present\n");
1649 return -1;
1650 }
1651 DEBUG(2,"interrupt_ecf(local=%p, ccs = 0x%x\n",local,ccs);
1652
1653 while ( i &&
1654 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) & ECF_INTR_SET))
1655 i--;
1656 if (i == 0) {
1657 DEBUG(2,"ray_cs interrupt_ecf card not ready for interrupt\n");
1658 return -1;
1659 }
1660 /* Fill the mailbox, then kick the card */
1661 writeb(ccs, local->sram + SCB_BASE);
1662 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1663 return 0;
1664 } /* interrupt_ecf */
1665 /*===========================================================================*/
1666 /* Get next free transmit CCS */
1667 /* Return - index of current tx ccs */
1668 static int get_free_tx_ccs(ray_dev_t *local)
1669 {
1670 int i;
1671 struct ccs __iomem *pccs = ccs_base(local);
1672 struct pcmcia_device *link = local->finder;
1673
1674 if (!(pcmcia_dev_present(link))) {
1675 DEBUG(2,"ray_cs get_free_tx_ccs - device not present\n");
1676 return ECARDGONE;
1677 }
1678
1679 if (test_and_set_bit(0,&local->tx_ccs_lock)) {
1680 DEBUG(1,"ray_cs tx_ccs_lock busy\n");
1681 return ECCSBUSY;
1682 }
1683
1684 for (i=0; i < NUMBER_OF_TX_CCS; i++) {
1685 if (readb(&(pccs+i)->buffer_status) == CCS_BUFFER_FREE) {
1686 writeb(CCS_BUFFER_BUSY, &(pccs+i)->buffer_status);
1687 writeb(CCS_END_LIST, &(pccs+i)->link);
1688 local->tx_ccs_lock = 0;
1689 return i;
1690 }
1691 }
1692 local->tx_ccs_lock = 0;
1693 DEBUG(2,"ray_cs ERROR no free tx CCS for raylink card\n");
1694 return ECCSFULL;
1695 } /* get_free_tx_ccs */
1696 /*===========================================================================*/
1697 /* Get next free CCS */
1698 /* Return - index of current ccs */
1699 static int get_free_ccs(ray_dev_t *local)
1700 {
1701 int i;
1702 struct ccs __iomem *pccs = ccs_base(local);
1703 struct pcmcia_device *link = local->finder;
1704
1705 if (!(pcmcia_dev_present(link))) {
1706 DEBUG(2,"ray_cs get_free_ccs - device not present\n");
1707 return ECARDGONE;
1708 }
1709 if (test_and_set_bit(0,&local->ccs_lock)) {
1710 DEBUG(1,"ray_cs ccs_lock busy\n");
1711 return ECCSBUSY;
1712 }
1713
1714 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1715 if (readb(&(pccs+i)->buffer_status) == CCS_BUFFER_FREE) {
1716 writeb(CCS_BUFFER_BUSY, &(pccs+i)->buffer_status);
1717 writeb(CCS_END_LIST, &(pccs+i)->link);
1718 local->ccs_lock = 0;
1719 return i;
1720 }
1721 }
1722 local->ccs_lock = 0;
1723 DEBUG(1,"ray_cs ERROR no free CCS for raylink card\n");
1724 return ECCSFULL;
1725 } /* get_free_ccs */
1726 /*===========================================================================*/
1727 static void authenticate_timeout(u_long data)
1728 {
1729 ray_dev_t *local = (ray_dev_t *)data;
1730 del_timer(&local->timer);
1731 printk(KERN_INFO "ray_cs Authentication with access point failed"
1732 " - timeout\n");
1733 join_net((u_long)local);
1734 }
1735 /*===========================================================================*/
1736 static int asc_to_int(char a)
1737 {
1738 if (a < '0') return -1;
1739 if (a <= '9') return (a - '0');
1740 if (a < 'A') return -1;
1741 if (a <= 'F') return (10 + a - 'A');
1742 if (a < 'a') return -1;
1743 if (a <= 'f') return (10 + a - 'a');
1744 return -1;
1745 }
1746 /*===========================================================================*/
1747 static int parse_addr(char *in_str, UCHAR *out)
1748 {
1749 int len;
1750 int i,j,k;
1751 int status;
1752
1753 if (in_str == NULL) return 0;
1754 if ((len = strlen(in_str)) < 2) return 0;
1755 memset(out, 0, ADDRLEN);
1756
1757 status = 1;
1758 j = len - 1;
1759 if (j > 12) j = 12;
1760 i = 5;
1761
1762 while (j > 0)
1763 {
1764 if ((k = asc_to_int(in_str[j--])) != -1) out[i] = k;
1765 else return 0;
1766
1767 if (j == 0) break;
1768 if ((k = asc_to_int(in_str[j--])) != -1) out[i] += k << 4;
1769 else return 0;
1770 if (!i--) break;
1771 }
1772 return status;
1773 }
1774 /*===========================================================================*/
1775 static struct net_device_stats *ray_get_stats(struct net_device *dev)
1776 {
1777 ray_dev_t *local = netdev_priv(dev);
1778 struct pcmcia_device *link = local->finder;
1779 struct status __iomem *p = local->sram + STATUS_BASE;
1780 if (!(pcmcia_dev_present(link))) {
1781 DEBUG(2,"ray_cs net_device_stats - device not present\n");
1782 return &local->stats;
1783 }
1784 if (readb(&p->mrx_overflow_for_host))
1785 {
1786 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1787 writeb(0,&p->mrx_overflow);
1788 writeb(0,&p->mrx_overflow_for_host);
1789 }
1790 if (readb(&p->mrx_checksum_error_for_host))
1791 {
1792 local->stats.rx_crc_errors += swab16(readw(&p->mrx_checksum_error));
1793 writeb(0,&p->mrx_checksum_error);
1794 writeb(0,&p->mrx_checksum_error_for_host);
1795 }
1796 if (readb(&p->rx_hec_error_for_host))
1797 {
1798 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1799 writeb(0,&p->rx_hec_error);
1800 writeb(0,&p->rx_hec_error_for_host);
1801 }
1802 return &local->stats;
1803 }
1804 /*===========================================================================*/
1805 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len)
1806 {
1807 ray_dev_t *local = netdev_priv(dev);
1808 struct pcmcia_device *link = local->finder;
1809 int ccsindex;
1810 int i;
1811 struct ccs __iomem *pccs;
1812
1813 if (!(pcmcia_dev_present(link))) {
1814 DEBUG(2,"ray_update_parm - device not present\n");
1815 return;
1816 }
1817
1818 if ((ccsindex = get_free_ccs(local)) < 0)
1819 {
1820 DEBUG(0,"ray_update_parm - No free ccs\n");
1821 return;
1822 }
1823 pccs = ccs_base(local) + ccsindex;
1824 writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1825 writeb(objid, &pccs->var.update_param.object_id);
1826 writeb(1, &pccs->var.update_param.number_objects);
1827 writeb(0, &pccs->var.update_param.failure_cause);
1828 for (i=0; i<len; i++) {
1829 writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1830 }
1831 /* Interrupt the firmware to process the command */
1832 if (interrupt_ecf(local, ccsindex)) {
1833 DEBUG(0,"ray_cs associate failed - ECF not ready for intr\n");
1834 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1835 }
1836 }
1837 /*===========================================================================*/
1838 static void ray_update_multi_list(struct net_device *dev, int all)
1839 {
1840 struct dev_mc_list *dmi, **dmip;
1841 int ccsindex;
1842 struct ccs __iomem *pccs;
1843 int i = 0;
1844 ray_dev_t *local = netdev_priv(dev);
1845 struct pcmcia_device *link = local->finder;
1846 void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1847
1848 if (!(pcmcia_dev_present(link))) {
1849 DEBUG(2,"ray_update_multi_list - device not present\n");
1850 return;
1851 }
1852 else
1853 DEBUG(2,"ray_update_multi_list(%p)\n",dev);
1854 if ((ccsindex = get_free_ccs(local)) < 0)
1855 {
1856 DEBUG(1,"ray_update_multi - No free ccs\n");
1857 return;
1858 }
1859 pccs = ccs_base(local) + ccsindex;
1860 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1861
1862 if (all) {
1863 writeb(0xff, &pccs->var);
1864 local->num_multi = 0xff;
1865 }
1866 else {
1867 /* Copy the kernel's list of MC addresses to card */
1868 for (dmip=&dev->mc_list; (dmi=*dmip)!=NULL; dmip=&dmi->next) {
1869 memcpy_toio(p, dmi->dmi_addr, ETH_ALEN);
1870 DEBUG(1,"ray_update_multi add addr %02x%02x%02x%02x%02x%02x\n",dmi->dmi_addr[0],dmi->dmi_addr[1],dmi->dmi_addr[2],dmi->dmi_addr[3],dmi->dmi_addr[4],dmi->dmi_addr[5]);
1871 p += ETH_ALEN;
1872 i++;
1873 }
1874 if (i > 256/ADDRLEN) i = 256/ADDRLEN;
1875 writeb((UCHAR)i, &pccs->var);
1876 DEBUG(1,"ray_cs update_multi %d addresses in list\n", i);
1877 /* Interrupt the firmware to process the command */
1878 local->num_multi = i;
1879 }
1880 if (interrupt_ecf(local, ccsindex)) {
1881 DEBUG(1,"ray_cs update_multi failed - ECF not ready for intr\n");
1882 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1883 }
1884 } /* end ray_update_multi_list */
1885 /*===========================================================================*/
1886 static void set_multicast_list(struct net_device *dev)
1887 {
1888 ray_dev_t *local = netdev_priv(dev);
1889 UCHAR promisc;
1890
1891 DEBUG(2,"ray_cs set_multicast_list(%p)\n",dev);
1892
1893 if (dev->flags & IFF_PROMISC)
1894 {
1895 if (local->sparm.b5.a_promiscuous_mode == 0) {
1896 DEBUG(1,"ray_cs set_multicast_list promisc on\n");
1897 local->sparm.b5.a_promiscuous_mode = 1;
1898 promisc = 1;
1899 ray_update_parm(dev, OBJID_promiscuous_mode, \
1900 &promisc, sizeof(promisc));
1901 }
1902 }
1903 else {
1904 if (local->sparm.b5.a_promiscuous_mode == 1) {
1905 DEBUG(1,"ray_cs set_multicast_list promisc off\n");
1906 local->sparm.b5.a_promiscuous_mode = 0;
1907 promisc = 0;
1908 ray_update_parm(dev, OBJID_promiscuous_mode, \
1909 &promisc, sizeof(promisc));
1910 }
1911 }
1912
1913 if (dev->flags & IFF_ALLMULTI) ray_update_multi_list(dev, 1);
1914 else
1915 {
1916 if (local->num_multi != dev->mc_count) ray_update_multi_list(dev, 0);
1917 }
1918 } /* end set_multicast_list */
1919 /*=============================================================================
1920 * All routines below here are run at interrupt time.
1921 =============================================================================*/
1922 static irqreturn_t ray_interrupt(int irq, void *dev_id)
1923 {
1924 struct net_device *dev = (struct net_device *)dev_id;
1925 struct pcmcia_device *link;
1926 ray_dev_t *local;
1927 struct ccs __iomem *pccs;
1928 struct rcs __iomem *prcs;
1929 UCHAR rcsindex;
1930 UCHAR tmp;
1931 UCHAR cmd;
1932 UCHAR status;
1933
1934 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */
1935 return IRQ_NONE;
1936
1937 DEBUG(4,"ray_cs: interrupt for *dev=%p\n",dev);
1938
1939 local = netdev_priv(dev);
1940 link = (struct pcmcia_device *)local->finder;
1941 if (!pcmcia_dev_present(link)) {
1942 DEBUG(2,"ray_cs interrupt from device not present or suspended.\n");
1943 return IRQ_NONE;
1944 }
1945 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1946
1947 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS))
1948 {
1949 DEBUG(1,"ray_cs interrupt bad rcsindex = 0x%x\n",rcsindex);
1950 clear_interrupt(local);
1951 return IRQ_HANDLED;
1952 }
1953 if (rcsindex < NUMBER_OF_CCS) /* If it's a returned CCS */
1954 {
1955 pccs = ccs_base(local) + rcsindex;
1956 cmd = readb(&pccs->cmd);
1957 status = readb(&pccs->buffer_status);
1958 switch (cmd)
1959 {
1960 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */
1961 del_timer(&local->timer);
1962 if (status == CCS_COMMAND_COMPLETE) {
1963 DEBUG(1,"ray_cs interrupt download_startup_parameters OK\n");
1964 }
1965 else {
1966 DEBUG(1,"ray_cs interrupt download_startup_parameters fail\n");
1967 }
1968 break;
1969 case CCS_UPDATE_PARAMS:
1970 DEBUG(1,"ray_cs interrupt update params done\n");
1971 if (status != CCS_COMMAND_COMPLETE) {
1972 tmp = readb(&pccs->var.update_param.failure_cause);
1973 DEBUG(0,"ray_cs interrupt update params failed - reason %d\n",tmp);
1974 }
1975 break;
1976 case CCS_REPORT_PARAMS:
1977 DEBUG(1,"ray_cs interrupt report params done\n");
1978 break;
1979 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
1980 DEBUG(1,"ray_cs interrupt CCS Update Multicast List done\n");
1981 break;
1982 case CCS_UPDATE_POWER_SAVINGS_MODE:
1983 DEBUG(1,"ray_cs interrupt update power save mode done\n");
1984 break;
1985 case CCS_START_NETWORK:
1986 case CCS_JOIN_NETWORK:
1987 if (status == CCS_COMMAND_COMPLETE) {
1988 if (readb(&pccs->var.start_network.net_initiated) == 1) {
1989 DEBUG(0,"ray_cs interrupt network \"%s\" started\n",\
1990 local->sparm.b4.a_current_ess_id);
1991 }
1992 else {
1993 DEBUG(0,"ray_cs interrupt network \"%s\" joined\n",\
1994 local->sparm.b4.a_current_ess_id);
1995 }
1996 memcpy_fromio(&local->bss_id,pccs->var.start_network.bssid,ADDRLEN);
1997
1998 if (local->fw_ver == 0x55) local->net_default_tx_rate = 3;
1999 else local->net_default_tx_rate =
2000 readb(&pccs->var.start_network.net_default_tx_rate);
2001 local->encryption = readb(&pccs->var.start_network.encryption);
2002 if (!sniffer && (local->net_type == INFRA)
2003 && !(local->sparm.b4.a_acting_as_ap_status)) {
2004 authenticate(local);
2005 }
2006 local->card_status = CARD_ACQ_COMPLETE;
2007 }
2008 else {
2009 local->card_status = CARD_ACQ_FAILED;
2010
2011 del_timer(&local->timer);
2012 local->timer.expires = jiffies + HZ*5;
2013 local->timer.data = (long)local;
2014 if (status == CCS_START_NETWORK) {
2015 DEBUG(0,"ray_cs interrupt network \"%s\" start failed\n",\
2016 local->sparm.b4.a_current_ess_id);
2017 local->timer.function = &start_net;
2018 }
2019 else {
2020 DEBUG(0,"ray_cs interrupt network \"%s\" join failed\n",\
2021 local->sparm.b4.a_current_ess_id);
2022 local->timer.function = &join_net;
2023 }
2024 add_timer(&local->timer);
2025 }
2026 break;
2027 case CCS_START_ASSOCIATION:
2028 if (status == CCS_COMMAND_COMPLETE) {
2029 local->card_status = CARD_ASSOC_COMPLETE;
2030 DEBUG(0,"ray_cs association successful\n");
2031 }
2032 else
2033 {
2034 DEBUG(0,"ray_cs association failed,\n");
2035 local->card_status = CARD_ASSOC_FAILED;
2036 join_net((u_long)local);
2037 }
2038 break;
2039 case CCS_TX_REQUEST:
2040 if (status == CCS_COMMAND_COMPLETE) {
2041 DEBUG(3,"ray_cs interrupt tx request complete\n");
2042 }
2043 else {
2044 DEBUG(1,"ray_cs interrupt tx request failed\n");
2045 }
2046 if (!sniffer) netif_start_queue(dev);
2047 netif_wake_queue(dev);
2048 break;
2049 case CCS_TEST_MEMORY:
2050 DEBUG(1,"ray_cs interrupt mem test done\n");
2051 break;
2052 case CCS_SHUTDOWN:
2053 DEBUG(1,"ray_cs interrupt Unexpected CCS returned - Shutdown\n");
2054 break;
2055 case CCS_DUMP_MEMORY:
2056 DEBUG(1,"ray_cs interrupt dump memory done\n");
2057 break;
2058 case CCS_START_TIMER:
2059 DEBUG(2,"ray_cs interrupt DING - raylink timer expired\n");
2060 break;
2061 default:
2062 DEBUG(1,"ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",\
2063 rcsindex, cmd);
2064 }
2065 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
2066 }
2067 else /* It's an RCS */
2068 {
2069 prcs = rcs_base(local) + rcsindex;
2070
2071 switch (readb(&prcs->interrupt_id))
2072 {
2073 case PROCESS_RX_PACKET:
2074 ray_rx(dev, local, prcs);
2075 break;
2076 case REJOIN_NET_COMPLETE:
2077 DEBUG(1,"ray_cs interrupt rejoin net complete\n");
2078 local->card_status = CARD_ACQ_COMPLETE;
2079 /* do we need to clear tx buffers CCS's? */
2080 if (local->sparm.b4.a_network_type == ADHOC) {
2081 if (!sniffer) netif_start_queue(dev);
2082 }
2083 else {
2084 memcpy_fromio(&local->bss_id, prcs->var.rejoin_net_complete.bssid, ADDRLEN);
2085 DEBUG(1,"ray_cs new BSSID = %02x%02x%02x%02x%02x%02x\n",\
2086 local->bss_id[0], local->bss_id[1], local->bss_id[2],\
2087 local->bss_id[3], local->bss_id[4], local->bss_id[5]);
2088 if (!sniffer) authenticate(local);
2089 }
2090 break;
2091 case ROAMING_INITIATED:
2092 DEBUG(1,"ray_cs interrupt roaming initiated\n");
2093 netif_stop_queue(dev);
2094 local->card_status = CARD_DOING_ACQ;
2095 break;
2096 case JAPAN_CALL_SIGN_RXD:
2097 DEBUG(1,"ray_cs interrupt japan call sign rx\n");
2098 break;
2099 default:
2100 DEBUG(1,"ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",\
2101 rcsindex, (unsigned int) readb(&prcs->interrupt_id));
2102 break;
2103 }
2104 writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2105 }
2106 clear_interrupt(local);
2107 return IRQ_HANDLED;
2108 } /* ray_interrupt */
2109 /*===========================================================================*/
2110 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs)
2111 {
2112 int rx_len;
2113 unsigned int pkt_addr;
2114 void __iomem *pmsg;
2115 DEBUG(4,"ray_rx process rx packet\n");
2116
2117 /* Calculate address of packet within Rx buffer */
2118 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2119 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2120 /* Length of first packet fragment */
2121 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2122 + readb(&prcs->var.rx_packet.rx_data_length[1]);
2123
2124 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2125 pmsg = local->rmem + pkt_addr;
2126 switch(readb(pmsg))
2127 {
2128 case DATA_TYPE:
2129 DEBUG(4,"ray_rx data type\n");
2130 rx_data(dev, prcs, pkt_addr, rx_len);
2131 break;
2132 case AUTHENTIC_TYPE:
2133 DEBUG(4,"ray_rx authentic type\n");
2134 if (sniffer) rx_data(dev, prcs, pkt_addr, rx_len);
2135 else rx_authenticate(local, prcs, pkt_addr, rx_len);
2136 break;
2137 case DEAUTHENTIC_TYPE:
2138 DEBUG(4,"ray_rx deauth type\n");
2139 if (sniffer) rx_data(dev, prcs, pkt_addr, rx_len);
2140 else rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2141 break;
2142 case NULL_MSG_TYPE:
2143 DEBUG(3,"ray_cs rx NULL msg\n");
2144 break;
2145 case BEACON_TYPE:
2146 DEBUG(4,"ray_rx beacon type\n");
2147 if (sniffer) rx_data(dev, prcs, pkt_addr, rx_len);
2148
2149 copy_from_rx_buff(local, (UCHAR *)&local->last_bcn, pkt_addr,
2150 rx_len < sizeof(struct beacon_rx) ?
2151 rx_len : sizeof(struct beacon_rx));
2152
2153 local->beacon_rxed = 1;
2154 /* Get the statistics so the card counters never overflow */
2155 ray_get_stats(dev);
2156 break;
2157 default:
2158 DEBUG(0,"ray_cs unknown pkt type %2x\n", (unsigned int) readb(pmsg));
2159 break;
2160 }
2161
2162 } /* end ray_rx */
2163 /*===========================================================================*/
2164 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs, unsigned int pkt_addr,
2165 int rx_len)
2166 {
2167 struct sk_buff *skb = NULL;
2168 struct rcs __iomem *prcslink = prcs;
2169 ray_dev_t *local = netdev_priv(dev);
2170 UCHAR *rx_ptr;
2171 int total_len;
2172 int tmp;
2173 #ifdef WIRELESS_SPY
2174 int siglev = local->last_rsl;
2175 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */
2176 #endif
2177
2178 if (!sniffer) {
2179 if (translate) {
2180 /* TBD length needs fixing for translated header */
2181 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2182 rx_len > (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + FCS_LEN))
2183 {
2184 DEBUG(0,"ray_cs invalid packet length %d received \n",rx_len);
2185 return;
2186 }
2187 }
2188 else /* encapsulated ethernet */ {
2189 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2190 rx_len > (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + FCS_LEN))
2191 {
2192 DEBUG(0,"ray_cs invalid packet length %d received \n",rx_len);
2193 return;
2194 }
2195 }
2196 }
2197 DEBUG(4,"ray_cs rx_data packet\n");
2198 /* If fragmented packet, verify sizes of fragments add up */
2199 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2200 DEBUG(1,"ray_cs rx'ed fragment\n");
2201 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2202 + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2203 total_len = tmp;
2204 prcslink = prcs;
2205 do {
2206 tmp -= (readb(&prcslink->var.rx_packet.rx_data_length[0]) << 8)
2207 + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2208 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index) == 0xFF
2209 || tmp < 0) break;
2210 prcslink = rcs_base(local)
2211 + readb(&prcslink->link_field);
2212 } while (1);
2213
2214 if (tmp < 0)
2215 {
2216 DEBUG(0,"ray_cs rx_data fragment lengths don't add up\n");
2217 local->stats.rx_dropped++;
2218 release_frag_chain(local, prcs);
2219 return;
2220 }
2221 }
2222 else { /* Single unfragmented packet */
2223 total_len = rx_len;
2224 }
2225
2226 skb = dev_alloc_skb( total_len+5 );
2227 if (skb == NULL)
2228 {
2229 DEBUG(0,"ray_cs rx_data could not allocate skb\n");
2230 local->stats.rx_dropped++;
2231 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2232 release_frag_chain(local, prcs);
2233 return;
2234 }
2235 skb_reserve( skb, 2); /* Align IP on 16 byte (TBD check this)*/
2236
2237 DEBUG(4,"ray_cs rx_data total_len = %x, rx_len = %x\n",total_len,rx_len);
2238
2239 /************************/
2240 /* Reserve enough room for the whole damn packet. */
2241 rx_ptr = skb_put( skb, total_len);
2242 /* Copy the whole packet to sk_buff */
2243 rx_ptr += copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2244 /* Get source address */
2245 #ifdef WIRELESS_SPY
2246 skb_copy_from_linear_data_offset(skb, offsetof(struct mac_header, addr_2),
2247 linksrcaddr, ETH_ALEN);
2248 #endif
2249 /* Now, deal with encapsulation/translation/sniffer */
2250 if (!sniffer) {
2251 if (!translate) {
2252 /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2253 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2254 skb_pull( skb, RX_MAC_HEADER_LENGTH);
2255 }
2256 else {
2257 /* Do translation */
2258 untranslate(local, skb, total_len);
2259 }
2260 }
2261 else
2262 { /* sniffer mode, so just pass whole packet */ };
2263
2264 /************************/
2265 /* Now pick up the rest of the fragments if any */
2266 tmp = 17;
2267 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2268 prcslink = prcs;
2269 DEBUG(1,"ray_cs rx_data in fragment loop\n");
2270 do {
2271 prcslink = rcs_base(local)
2272 + readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2273 rx_len = (( readb(&prcslink->var.rx_packet.rx_data_length[0]) << 8)
2274 + readb(&prcslink->var.rx_packet.rx_data_length[1]))
2275 & RX_BUFF_END;
2276 pkt_addr = (( readb(&prcslink->var.rx_packet.rx_data_ptr[0]) << 8)
2277 + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2278 & RX_BUFF_END;
2279
2280 rx_ptr += copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2281
2282 } while (tmp-- &&
2283 readb(&prcslink->var.rx_packet.next_frag_rcs_index) != 0xFF);
2284 release_frag_chain(local, prcs);
2285 }
2286
2287 skb->protocol = eth_type_trans(skb,dev);
2288 netif_rx(skb);
2289 local->stats.rx_packets++;
2290 local->stats.rx_bytes += total_len;
2291
2292 /* Gather signal strength per address */
2293 #ifdef WIRELESS_SPY
2294 /* For the Access Point or the node having started the ad-hoc net
2295 * note : ad-hoc work only in some specific configurations, but we
2296 * kludge in ray_get_wireless_stats... */
2297 if(!memcmp(linksrcaddr, local->bss_id, ETH_ALEN))
2298 {
2299 /* Update statistics */
2300 /*local->wstats.qual.qual = none ? */
2301 local->wstats.qual.level = siglev;
2302 /*local->wstats.qual.noise = none ? */
2303 local->wstats.qual.updated = 0x2;
2304 }
2305 /* Now, update the spy stuff */
2306 {
2307 struct iw_quality wstats;
2308 wstats.level = siglev;
2309 /* wstats.noise = none ? */
2310 /* wstats.qual = none ? */
2311 wstats.updated = 0x2;
2312 /* Update spy records */
2313 wireless_spy_update(dev, linksrcaddr, &wstats);
2314 }
2315 #endif /* WIRELESS_SPY */
2316 } /* end rx_data */
2317 /*===========================================================================*/
2318 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2319 {
2320 snaphdr_t *psnap = (snaphdr_t *)(skb->data + RX_MAC_HEADER_LENGTH);
2321 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2322 __be16 type = *(__be16 *)psnap->ethertype;
2323 int delta;
2324 struct ethhdr *peth;
2325 UCHAR srcaddr[ADDRLEN];
2326 UCHAR destaddr[ADDRLEN];
2327 static UCHAR org_bridge[3] = {0, 0, 0xf8};
2328 static UCHAR org_1042[3] = {0, 0, 0};
2329
2330 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2331 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2332
2333 #ifdef PCMCIA_DEBUG
2334 if (pc_debug > 3) {
2335 int i;
2336 printk(KERN_DEBUG "skb->data before untranslate");
2337 for (i=0;i<64;i++)
2338 printk("%02x ",skb->data[i]);
2339 printk("\n" KERN_DEBUG "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2340 ntohs(type),
2341 psnap->dsap, psnap->ssap, psnap->ctrl,
2342 psnap->org[0], psnap->org[1], psnap->org[2]);
2343 printk(KERN_DEBUG "untranslate skb->data = %p\n",skb->data);
2344 }
2345 #endif
2346
2347 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2348 /* not a snap type so leave it alone */
2349 DEBUG(3,"ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2350 psnap->dsap, psnap->ssap, psnap->ctrl);
2351
2352 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2353 peth = (struct ethhdr *)(skb->data + delta);
2354 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2355 }
2356 else { /* Its a SNAP */
2357 if (memcmp(psnap->org, org_bridge, 3) == 0) { /* EtherII and nuke the LLC */
2358 DEBUG(3,"ray_cs untranslate Bridge encap\n");
2359 delta = RX_MAC_HEADER_LENGTH
2360 + sizeof(struct snaphdr_t) - ETH_HLEN;
2361 peth = (struct ethhdr *)(skb->data + delta);
2362 peth->h_proto = type;
2363 } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2364 switch (ntohs(type)) {
2365 case ETH_P_IPX:
2366 case ETH_P_AARP:
2367 DEBUG(3,"ray_cs untranslate RFC IPX/AARP\n");
2368 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2369 peth = (struct ethhdr *)(skb->data + delta);
2370 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2371 break;
2372 default:
2373 DEBUG(3,"ray_cs untranslate RFC default\n");
2374 delta = RX_MAC_HEADER_LENGTH +
2375 sizeof(struct snaphdr_t) - ETH_HLEN;
2376 peth = (struct ethhdr *)(skb->data + delta);
2377 peth->h_proto = type;
2378 break;
2379 }
2380 } else {
2381 printk("ray_cs untranslate very confused by packet\n");
2382 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2383 peth = (struct ethhdr *)(skb->data + delta);
2384 peth->h_proto = type;
2385 }
2386 }
2387 /* TBD reserve skb_reserve(skb, delta); */
2388 skb_pull(skb, delta);
2389 DEBUG(3,"untranslate after skb_pull(%d), skb->data = %p\n",delta,skb->data);
2390 memcpy(peth->h_dest, destaddr, ADDRLEN);
2391 memcpy(peth->h_source, srcaddr, ADDRLEN);
2392 #ifdef PCMCIA_DEBUG
2393 if (pc_debug > 3) {
2394 int i;
2395 printk(KERN_DEBUG "skb->data after untranslate:");
2396 for (i=0;i<64;i++)
2397 printk("%02x ",skb->data[i]);
2398 printk("\n");
2399 }
2400 #endif
2401 } /* end untranslate */
2402 /*===========================================================================*/
2403 /* Copy data from circular receive buffer to PC memory.
2404 * dest = destination address in PC memory
2405 * pkt_addr = source address in receive buffer
2406 * len = length of packet to copy
2407 */
2408 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int length)
2409 {
2410 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2411 if (wrap_bytes <= 0)
2412 {
2413 memcpy_fromio(dest,local->rmem + pkt_addr,length);
2414 }
2415 else /* Packet wrapped in circular buffer */
2416 {
2417 memcpy_fromio(dest,local->rmem+pkt_addr,length - wrap_bytes);
2418 memcpy_fromio(dest + length - wrap_bytes, local->rmem, wrap_bytes);
2419 }
2420 return length;
2421 }
2422 /*===========================================================================*/
2423 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem * prcs)
2424 {
2425 struct rcs __iomem *prcslink = prcs;
2426 int tmp = 17;
2427 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2428
2429 while (tmp--) {
2430 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2431 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2432 DEBUG(1,"ray_cs interrupt bad rcsindex = 0x%x\n",rcsindex);
2433 break;
2434 }
2435 prcslink = rcs_base(local) + rcsindex;
2436 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2437 }
2438 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2439 }
2440 /*===========================================================================*/
2441 static void authenticate(ray_dev_t *local)
2442 {
2443 struct pcmcia_device *link = local->finder;
2444 DEBUG(0,"ray_cs Starting authentication.\n");
2445 if (!(pcmcia_dev_present(link))) {
2446 DEBUG(2,"ray_cs authenticate - device not present\n");
2447 return;
2448 }
2449
2450 del_timer(&local->timer);
2451 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2452 local->timer.function = &join_net;
2453 }
2454 else {
2455 local->timer.function = &authenticate_timeout;
2456 }
2457 local->timer.expires = jiffies + HZ*2;
2458 local->timer.data = (long)local;
2459 add_timer(&local->timer);
2460 local->authentication_state = AWAITING_RESPONSE;
2461 } /* end authenticate */
2462 /*===========================================================================*/
2463 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2464 unsigned int pkt_addr, int rx_len)
2465 {
2466 UCHAR buff[256];
2467 struct rx_msg *msg = (struct rx_msg *)buff;
2468
2469 del_timer(&local->timer);
2470
2471 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2472 /* if we are trying to get authenticated */
2473 if (local->sparm.b4.a_network_type == ADHOC) {
2474 DEBUG(1,"ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n", msg->var[0],msg->var[1],msg->var[2],msg->var[3],msg->var[4],msg->var[5]);
2475 if (msg->var[2] == 1) {
2476 DEBUG(0,"ray_cs Sending authentication response.\n");
2477 if (!build_auth_frame (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2478 local->authentication_state = NEED_TO_AUTH;
2479 memcpy(local->auth_id, msg->mac.addr_2, ADDRLEN);
2480 }
2481 }
2482 }
2483 else /* Infrastructure network */
2484 {
2485 if (local->authentication_state == AWAITING_RESPONSE) {
2486 /* Verify authentication sequence #2 and success */
2487 if (msg->var[2] == 2) {
2488 if ((msg->var[3] | msg->var[4]) == 0) {
2489 DEBUG(1,"Authentication successful\n");
2490 local->card_status = CARD_AUTH_COMPLETE;
2491 associate(local);
2492 local->authentication_state = AUTHENTICATED;
2493 }
2494 else {
2495 DEBUG(0,"Authentication refused\n");
2496 local->card_status = CARD_AUTH_REFUSED;
2497 join_net((u_long)local);
2498 local->authentication_state = UNAUTHENTICATED;
2499 }
2500 }
2501 }
2502 }
2503
2504 } /* end rx_authenticate */
2505 /*===========================================================================*/
2506 static void associate(ray_dev_t *local)
2507 {
2508 struct ccs __iomem *pccs;
2509 struct pcmcia_device *link = local->finder;
2510 struct net_device *dev = link->priv;
2511 int ccsindex;
2512 if (!(pcmcia_dev_present(link))) {
2513 DEBUG(2,"ray_cs associate - device not present\n");
2514 return;
2515 }
2516 /* If no tx buffers available, return*/
2517 if ((ccsindex = get_free_ccs(local)) < 0)
2518 {
2519 /* TBD should never be here but... what if we are? */
2520 DEBUG(1,"ray_cs associate - No free ccs\n");
2521 return;
2522 }
2523 DEBUG(1,"ray_cs Starting association with access point\n");
2524 pccs = ccs_base(local) + ccsindex;
2525 /* fill in the CCS */
2526 writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2527 /* Interrupt the firmware to process the command */
2528 if (interrupt_ecf(local, ccsindex)) {
2529 DEBUG(1,"ray_cs associate failed - ECF not ready for intr\n");
2530 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2531
2532 del_timer(&local->timer);
2533 local->timer.expires = jiffies + HZ*2;
2534 local->timer.data = (long)local;
2535 local->timer.function = &join_net;
2536 add_timer(&local->timer);
2537 local->card_status = CARD_ASSOC_FAILED;
2538 return;
2539 }
2540 if (!sniffer) netif_start_queue(dev);
2541
2542 } /* end associate */
2543 /*===========================================================================*/
2544 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2545 unsigned int pkt_addr, int rx_len)
2546 {
2547 /* UCHAR buff[256];
2548 struct rx_msg *msg = (struct rx_msg *)buff;
2549 */
2550 DEBUG(0,"Deauthentication frame received\n");
2551 local->authentication_state = UNAUTHENTICATED;
2552 /* Need to reauthenticate or rejoin depending on reason code */
2553 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2554 */
2555 }
2556 /*===========================================================================*/
2557 static void clear_interrupt(ray_dev_t *local)
2558 {
2559 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2560 }
2561 /*===========================================================================*/
2562 #ifdef CONFIG_PROC_FS
2563 #define MAXDATA (PAGE_SIZE - 80)
2564
2565 static char *card_status[] = {
2566 "Card inserted - uninitialized", /* 0 */
2567 "Card not downloaded", /* 1 */
2568 "Waiting for download parameters", /* 2 */
2569 "Card doing acquisition", /* 3 */
2570 "Acquisition complete", /* 4 */
2571 "Authentication complete", /* 5 */
2572 "Association complete", /* 6 */
2573 "???", "???", "???", "???", /* 7 8 9 10 undefined */
2574 "Card init error", /* 11 */
2575 "Download parameters error", /* 12 */
2576 "???", /* 13 */
2577 "Acquisition failed", /* 14 */
2578 "Authentication refused", /* 15 */
2579 "Association failed" /* 16 */
2580 };
2581
2582 static char *nettype[] = {"Adhoc", "Infra "};
2583 static char *framing[] = {"Encapsulation", "Translation"}
2584 ;
2585 /*===========================================================================*/
2586 static int ray_cs_proc_show(struct seq_file *m, void *v)
2587 {
2588 /* Print current values which are not available via other means
2589 * eg ifconfig
2590 */
2591 int i;
2592 struct pcmcia_device *link;
2593 struct net_device *dev;
2594 ray_dev_t *local;
2595 UCHAR *p;
2596 struct freq_hop_element *pfh;
2597 UCHAR c[33];
2598
2599 link = this_device;
2600 if (!link)
2601 return 0;
2602 dev = (struct net_device *)link->priv;
2603 if (!dev)
2604 return 0;
2605 local = netdev_priv(dev);
2606 if (!local)
2607 return 0;
2608
2609 seq_puts(m, "Raylink Wireless LAN driver status\n");
2610 seq_printf(m, "%s\n", rcsid);
2611 /* build 4 does not report version, and field is 0x55 after memtest */
2612 seq_puts(m, "Firmware version = ");
2613 if (local->fw_ver == 0x55)
2614 seq_puts(m, "4 - Use dump_cis for more details\n");
2615 else
2616 seq_printf(m, "%2d.%02d.%02d\n",
2617 local->fw_ver, local->fw_bld, local->fw_var);
2618
2619 for (i=0; i<32; i++) c[i] = local->sparm.b5.a_current_ess_id[i];
2620 c[32] = 0;
2621 seq_printf(m, "%s network ESSID = \"%s\"\n",
2622 nettype[local->sparm.b5.a_network_type], c);
2623
2624 p = local->bss_id;
2625 seq_printf(m, "BSSID = %pM\n", p);
2626
2627 seq_printf(m, "Country code = %d\n",
2628 local->sparm.b5.a_curr_country_code);
2629
2630 i = local->card_status;
2631 if (i < 0) i = 10;
2632 if (i > 16) i = 10;
2633 seq_printf(m, "Card status = %s\n", card_status[i]);
2634
2635 seq_printf(m, "Framing mode = %s\n",framing[translate]);
2636
2637 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl);
2638
2639 if (local->beacon_rxed) {
2640 /* Pull some fields out of last beacon received */
2641 seq_printf(m, "Beacon Interval = %d Kus\n",
2642 local->last_bcn.beacon_intvl[0]
2643 + 256 * local->last_bcn.beacon_intvl[1]);
2644
2645 p = local->last_bcn.elements;
2646 if (p[0] == C_ESSID_ELEMENT_ID) p += p[1] + 2;
2647 else {
2648 seq_printf(m, "Parse beacon failed at essid element id = %d\n",p[0]);
2649 return 0;
2650 }
2651
2652 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2653 seq_puts(m, "Supported rate codes = ");
2654 for (i=2; i<p[1] + 2; i++)
2655 seq_printf(m, "0x%02x ", p[i]);
2656 seq_putc(m, '\n');
2657 p += p[1] + 2;
2658 }
2659 else {
2660 seq_puts(m, "Parse beacon failed at rates element\n");
2661 return 0;
2662 }
2663
2664 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2665 pfh = (struct freq_hop_element *)p;
2666 seq_printf(m, "Hop dwell = %d Kus\n",
2667 pfh->dwell_time[0] + 256 * pfh->dwell_time[1]);
2668 seq_printf(m, "Hop set = %d \n", pfh->hop_set);
2669 seq_printf(m, "Hop pattern = %d \n", pfh->hop_pattern);
2670 seq_printf(m, "Hop index = %d \n", pfh->hop_index);
2671 p += p[1] + 2;
2672 }
2673 else {
2674 seq_puts(m, "Parse beacon failed at FH param element\n");
2675 return 0;
2676 }
2677 } else {
2678 seq_puts(m, "No beacons received\n");
2679 }
2680 return 0;
2681 }
2682
2683 static int ray_cs_proc_open(struct inode *inode, struct file *file)
2684 {
2685 return single_open(file, ray_cs_proc_show, NULL);
2686 }
2687
2688 static const struct file_operations ray_cs_proc_fops = {
2689 .owner = THIS_MODULE,
2690 .open = ray_cs_proc_open,
2691 .read = seq_read,
2692 .llseek = seq_lseek,
2693 .release = single_release,
2694 };
2695 #endif
2696 /*===========================================================================*/
2697 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2698 {
2699 int addr;
2700 struct ccs __iomem *pccs;
2701 struct tx_msg __iomem *ptx;
2702 int ccsindex;
2703
2704 /* If no tx buffers available, return */
2705 if ((ccsindex = get_free_tx_ccs(local)) < 0)
2706 {
2707 DEBUG(1,"ray_cs send authenticate - No free tx ccs\n");
2708 return -1;
2709 }
2710
2711 pccs = ccs_base(local) + ccsindex;
2712
2713 /* Address in card space */
2714 addr = TX_BUF_BASE + (ccsindex << 11);
2715 /* fill in the CCS */
2716 writeb(CCS_TX_REQUEST, &pccs->cmd);
2717 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2718 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2719 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2720 writeb(TX_AUTHENTICATE_LENGTH_LSB,pccs->var.tx_request.tx_data_length + 1);
2721 writeb(0, &pccs->var.tx_request.pow_sav_mode);
2722
2723 ptx = local->sram + addr;
2724 /* fill in the mac header */
2725 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2726 writeb(0, &ptx->mac.frame_ctl_2);
2727
2728 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2729 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2730 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2731
2732 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2733 memset_io(ptx->var, 0, 6);
2734 writeb(auth_type & 0xff, ptx->var + 2);
2735
2736 /* Interrupt the firmware to process the command */
2737 if (interrupt_ecf(local, ccsindex)) {
2738 DEBUG(1,"ray_cs send authentication request failed - ECF not ready for intr\n");
2739 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2740 return -1;
2741 }
2742 return 0;
2743 } /* End build_auth_frame */
2744
2745 /*===========================================================================*/
2746 #ifdef CONFIG_PROC_FS
2747 static void raycs_write(const char *name, write_proc_t *w, void *data)
2748 {
2749 struct proc_dir_entry * entry = create_proc_entry(name, S_IFREG | S_IWUSR, NULL);
2750 if (entry) {
2751 entry->write_proc = w;
2752 entry->data = data;
2753 }
2754 }
2755
2756 static int write_essid(struct file *file, const char __user *buffer, unsigned long count, void *data)
2757 {
2758 static char proc_essid[33];
2759 int len = count;
2760
2761 if (len > 32)
2762 len = 32;
2763 memset(proc_essid, 0, 33);
2764 if (copy_from_user(proc_essid, buffer, len))
2765 return -EFAULT;
2766 essid = proc_essid;
2767 return count;
2768 }
2769
2770 static int write_int(struct file *file, const char __user *buffer, unsigned long count, void *data)
2771 {
2772 static char proc_number[10];
2773 char *p;
2774 int nr, len;
2775
2776 if (!count)
2777 return 0;
2778
2779 if (count > 9)
2780 return -EINVAL;
2781 if (copy_from_user(proc_number, buffer, count))
2782 return -EFAULT;
2783 p = proc_number;
2784 nr = 0;
2785 len = count;
2786 do {
2787 unsigned int c = *p - '0';
2788 if (c > 9)
2789 return -EINVAL;
2790 nr = nr*10 + c;
2791 p++;
2792 } while (--len);
2793 *(int *)data = nr;
2794 return count;
2795 }
2796 #endif
2797
2798 static struct pcmcia_device_id ray_ids[] = {
2799 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2800 PCMCIA_DEVICE_NULL,
2801 };
2802 MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2803
2804 static struct pcmcia_driver ray_driver = {
2805 .owner = THIS_MODULE,
2806 .drv = {
2807 .name = "ray_cs",
2808 },
2809 .probe = ray_probe,
2810 .remove = ray_detach,
2811 .id_table = ray_ids,
2812 .suspend = ray_suspend,
2813 .resume = ray_resume,
2814 };
2815
2816 static int __init init_ray_cs(void)
2817 {
2818 int rc;
2819
2820 DEBUG(1, "%s\n", rcsid);
2821 rc = pcmcia_register_driver(&ray_driver);
2822 DEBUG(1, "raylink init_module register_pcmcia_driver returns 0x%x\n",rc);
2823
2824 #ifdef CONFIG_PROC_FS
2825 proc_mkdir("driver/ray_cs", NULL);
2826
2827 proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops);
2828 raycs_write("driver/ray_cs/essid", write_essid, NULL);
2829 raycs_write("driver/ray_cs/net_type", write_int, &net_type);
2830 raycs_write("driver/ray_cs/translate", write_int, &translate);
2831 #endif
2832 if (translate != 0) translate = 1;
2833 return 0;
2834 } /* init_ray_cs */
2835
2836 /*===========================================================================*/
2837
2838 static void __exit exit_ray_cs(void)
2839 {
2840 DEBUG(0, "ray_cs: cleanup_module\n");
2841
2842 #ifdef CONFIG_PROC_FS
2843 remove_proc_entry("driver/ray_cs/ray_cs", NULL);
2844 remove_proc_entry("driver/ray_cs/essid", NULL);
2845 remove_proc_entry("driver/ray_cs/net_type", NULL);
2846 remove_proc_entry("driver/ray_cs/translate", NULL);
2847 remove_proc_entry("driver/ray_cs", NULL);
2848 #endif
2849
2850 pcmcia_unregister_driver(&ray_driver);
2851 } /* exit_ray_cs */
2852
2853 module_init(init_ray_cs);
2854 module_exit(exit_ray_cs);
2855
2856 /*===========================================================================*/
(Inofficial) Linux kernel tree running on the Nao robot