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Save sram context after changing MPU, DSP or core clocks
[linux-ginger.git] / drivers / net / wireless / ray_cs.c
blob88cd58eb3b9f4b42bfc58d55cf8a9026d429a256
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 netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
108 struct net_device *dev);
109 static void set_multicast_list(struct net_device *dev);
110 static void ray_update_multi_list(struct net_device *dev, int all);
111 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
112 unsigned char *data, int len);
113 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
114 UCHAR msg_type, unsigned char *data);
115 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
116 static iw_stats *ray_get_wireless_stats(struct net_device *dev);
117 static const struct iw_handler_def ray_handler_def;
118
119 /***** Prototypes for raylink functions **************************************/
120 static int asc_to_int(char a);
121 static void authenticate(ray_dev_t *local);
122 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
123 static void authenticate_timeout(u_long);
124 static int get_free_ccs(ray_dev_t *local);
125 static int get_free_tx_ccs(ray_dev_t *local);
126 static void init_startup_params(ray_dev_t *local);
127 static int parse_addr(char *in_str, UCHAR *out);
128 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type);
129 static int ray_init(struct net_device *dev);
130 static int interrupt_ecf(ray_dev_t *local, int ccs);
131 static void ray_reset(struct net_device *dev);
132 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
133 static void verify_dl_startup(u_long);
134
135 /* Prototypes for interrpt time functions **********************************/
136 static irqreturn_t ray_interrupt(int reg, void *dev_id);
137 static void clear_interrupt(ray_dev_t *local);
138 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
139 unsigned int pkt_addr, int rx_len);
140 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
141 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
142 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
143 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
144 unsigned int pkt_addr, int rx_len);
145 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
146 unsigned int pkt_addr, int rx_len);
147 static void associate(ray_dev_t *local);
148
149 /* Card command functions */
150 static int dl_startup_params(struct net_device *dev);
151 static void join_net(u_long local);
152 static void start_net(u_long local);
153 /* void start_net(ray_dev_t *local); */
154
155 /*===========================================================================*/
156 /* Parameters that can be set with 'insmod' */
157
158 /* ADHOC=0, Infrastructure=1 */
159 static int net_type = ADHOC;
160
161 /* Hop dwell time in Kus (1024 us units defined by 802.11) */
162 static int hop_dwell = 128;
163
164 /* Beacon period in Kus */
165 static int beacon_period = 256;
166
167 /* power save mode (0 = off, 1 = save power) */
168 static int psm;
169
170 /* String for network's Extended Service Set ID. 32 Characters max */
171 static char *essid;
172
173 /* Default to encapsulation unless translation requested */
174 static int translate = 1;
175
176 static int country = USA;
177
178 static int sniffer;
179
180 static int bc;
181
182 /* 48 bit physical card address if overriding card's real physical
183 * address is required. Since IEEE 802.11 addresses are 48 bits
184 * like ethernet, an int can't be used, so a string is used. To
185 * allow use of addresses starting with a decimal digit, the first
186 * character must be a letter and will be ignored. This letter is
187 * followed by up to 12 hex digits which are the address. If less
188 * than 12 digits are used, the address will be left filled with 0's.
189 * Note that bit 0 of the first byte is the broadcast bit, and evil
190 * things will happen if it is not 0 in a card address.
191 */
192 static char *phy_addr = NULL;
193
194
195 /* A struct pcmcia_device structure has fields for most things that are needed
196 to keep track of a socket, but there will usually be some device
197 specific information that also needs to be kept track of. The
198 'priv' pointer in a struct pcmcia_device structure can be used to point to
199 a device-specific private data structure, like this.
200 */
201 static unsigned int ray_mem_speed = 500;
202
203 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
204 static struct pcmcia_device *this_device = NULL;
205
206 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
207 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
208 MODULE_LICENSE("GPL");
209
210 module_param(net_type, int, 0);
211 module_param(hop_dwell, int, 0);
212 module_param(beacon_period, int, 0);
213 module_param(psm, int, 0);
214 module_param(essid, charp, 0);
215 module_param(translate, int, 0);
216 module_param(country, int, 0);
217 module_param(sniffer, int, 0);
218 module_param(bc, int, 0);
219 module_param(phy_addr, charp, 0);
220 module_param(ray_mem_speed, int, 0);
221
222 static UCHAR b5_default_startup_parms[] = {
223 0, 0, /* Adhoc station */
224 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
225 0, 0, 0, 0, 0, 0, 0, 0,
226 0, 0, 0, 0, 0, 0, 0, 0,
227 0, 0, 0, 0, 0, 0, 0, 0,
228 1, 0, /* Active scan, CA Mode */
229 0, 0, 0, 0, 0, 0, /* No default MAC addr */
230 0x7f, 0xff, /* Frag threshold */
231 0x00, 0x80, /* Hop time 128 Kus */
232 0x01, 0x00, /* Beacon period 256 Kus */
233 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
234 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */
235 0x7f, 0xff, /* RTS threshold */
236 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
237 0x05, /* assoc resp timeout thresh */
238 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */
239 0, /* Promiscuous mode */
240 0x0c, 0x0bd, /* Unique word */
241 0x32, /* Slot time */
242 0xff, 0xff, /* roam-low snr, low snr count */
243 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
244 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */
245 /* b4 - b5 differences start here */
246 0x00, 0x3f, /* CW max */
247 0x00, 0x0f, /* CW min */
248 0x04, 0x08, /* Noise gain, limit offset */
249 0x28, 0x28, /* det rssi, med busy offsets */
250 7, /* det sync thresh */
251 0, 2, 2, /* test mode, min, max */
252 0, /* allow broadcast SSID probe resp */
253 0, 0, /* privacy must start, can join */
254 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */
255 };
256
257 static UCHAR b4_default_startup_parms[] = {
258 0, 0, /* Adhoc station */
259 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
260 0, 0, 0, 0, 0, 0, 0, 0,
261 0, 0, 0, 0, 0, 0, 0, 0,
262 0, 0, 0, 0, 0, 0, 0, 0,
263 1, 0, /* Active scan, CA Mode */
264 0, 0, 0, 0, 0, 0, /* No default MAC addr */
265 0x7f, 0xff, /* Frag threshold */
266 0x02, 0x00, /* Hop time */
267 0x00, 0x01, /* Beacon period */
268 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
269 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */
270 0x7f, 0xff, /* RTS threshold */
271 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
272 0x05, /* assoc resp timeout thresh */
273 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */
274 0, /* Promiscuous mode */
275 0x0c, 0x0bd, /* Unique word */
276 0x4e, /* Slot time (TBD seems wrong) */
277 0xff, 0xff, /* roam-low snr, low snr count */
278 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
279 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */
280 /* b4 - b5 differences start here */
281 0x3f, 0x0f, /* CW max, min */
282 0x04, 0x08, /* Noise gain, limit offset */
283 0x28, 0x28, /* det rssi, med busy offsets */
284 7, /* det sync thresh */
285 0, 2, 2 /* test mode, min, max */
286 };
287
288 /*===========================================================================*/
289 static unsigned char eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 };
290
291 static char hop_pattern_length[] = { 1,
292 USA_HOP_MOD, EUROPE_HOP_MOD,
293 JAPAN_HOP_MOD, KOREA_HOP_MOD,
294 SPAIN_HOP_MOD, FRANCE_HOP_MOD,
295 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
296 JAPAN_TEST_HOP_MOD
297 };
298
299 static char rcsid[] =
300 "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
301
302 static const struct net_device_ops ray_netdev_ops = {
303 .ndo_init = ray_dev_init,
304 .ndo_open = ray_open,
305 .ndo_stop = ray_dev_close,
306 .ndo_start_xmit = ray_dev_start_xmit,
307 .ndo_set_config = ray_dev_config,
308 .ndo_get_stats = ray_get_stats,
309 .ndo_set_multicast_list = set_multicast_list,
310 .ndo_change_mtu = eth_change_mtu,
311 .ndo_set_mac_address = eth_mac_addr,
312 .ndo_validate_addr = eth_validate_addr,
313 };
314
315 /*=============================================================================
316 ray_attach() creates an "instance" of the driver, allocating
317 local data structures for one device. The device is registered
318 with Card Services.
319 The dev_link structure is initialized, but we don't actually
320 configure the card at this point -- we wait until we receive a
321 card insertion event.
322 =============================================================================*/
323 static int ray_probe(struct pcmcia_device *p_dev)
324 {
325 ray_dev_t *local;
326 struct net_device *dev;
327
328 DEBUG(1, "ray_attach()\n");
329
330 /* Allocate space for private device-specific data */
331 dev = alloc_etherdev(sizeof(ray_dev_t));
332 if (!dev)
333 goto fail_alloc_dev;
334
335 local = netdev_priv(dev);
336 local->finder = p_dev;
337
338 /* The io structure describes IO port mapping. None used here */
339 p_dev->io.NumPorts1 = 0;
340 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
341 p_dev->io.IOAddrLines = 5;
342
343 /* Interrupt setup. For PCMCIA, driver takes what's given */
344 p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
345 p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
346 p_dev->irq.Handler = &ray_interrupt;
347
348 /* General socket configuration */
349 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
350 p_dev->conf.IntType = INT_MEMORY_AND_IO;
351 p_dev->conf.ConfigIndex = 1;
352
353 p_dev->priv = dev;
354 p_dev->irq.Instance = dev;
355
356 local->finder = p_dev;
357 local->card_status = CARD_INSERTED;
358 local->authentication_state = UNAUTHENTICATED;
359 local->num_multi = 0;
360 DEBUG(2, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n",
361 p_dev, dev, local, &ray_interrupt);
362
363 /* Raylink entries in the device structure */
364 dev->netdev_ops = &ray_netdev_ops;
365 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
366 dev->wireless_handlers = &ray_handler_def;
367 #ifdef WIRELESS_SPY
368 local->wireless_data.spy_data = &local->spy_data;
369 dev->wireless_data = &local->wireless_data;
370 #endif /* WIRELESS_SPY */
371
372
373 DEBUG(2, "ray_cs ray_attach calling ether_setup.)\n");
374 netif_stop_queue(dev);
375
376 init_timer(&local->timer);
377
378 this_device = p_dev;
379 return ray_config(p_dev);
380
381 fail_alloc_dev:
382 return -ENOMEM;
383 } /* ray_attach */
384
385 /*=============================================================================
386 This deletes a driver "instance". The device is de-registered
387 with Card Services. If it has been released, all local data
388 structures are freed. Otherwise, the structures will be freed
389 when the device is released.
390 =============================================================================*/
391 static void ray_detach(struct pcmcia_device *link)
392 {
393 struct net_device *dev;
394 ray_dev_t *local;
395
396 DEBUG(1, "ray_detach(0x%p)\n", link);
397
398 this_device = NULL;
399 dev = link->priv;
400
401 ray_release(link);
402
403 local = netdev_priv(dev);
404 del_timer(&local->timer);
405
406 if (link->priv) {
407 if (link->dev_node)
408 unregister_netdev(dev);
409 free_netdev(dev);
410 }
411 DEBUG(2, "ray_cs ray_detach ending\n");
412 } /* ray_detach */
413
414 /*=============================================================================
415 ray_config() is run after a CARD_INSERTION event
416 is received, to configure the PCMCIA socket, and to make the
417 ethernet device available to the system.
418 =============================================================================*/
419 #define CS_CHECK(fn, ret) \
420 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
421 #define MAX_TUPLE_SIZE 128
422 static int ray_config(struct pcmcia_device *link)
423 {
424 int last_fn = 0, last_ret = 0;
425 int i;
426 win_req_t req;
427 memreq_t mem;
428 struct net_device *dev = (struct net_device *)link->priv;
429 ray_dev_t *local = netdev_priv(dev);
430
431 DEBUG(1, "ray_config(0x%p)\n", link);
432
433 /* Determine card type and firmware version */
434 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n",
435 link->prod_id[0] ? link->prod_id[0] : " ",
436 link->prod_id[1] ? link->prod_id[1] : " ",
437 link->prod_id[2] ? link->prod_id[2] : " ",
438 link->prod_id[3] ? link->prod_id[3] : " ");
439
440 /* Now allocate an interrupt line. Note that this does not
441 actually assign a handler to the interrupt.
442 */
443 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
444 dev->irq = link->irq.AssignedIRQ;
445
446 /* This actually configures the PCMCIA socket -- setting up
447 the I/O windows and the interrupt mapping.
448 */
449 CS_CHECK(RequestConfiguration,
450 pcmcia_request_configuration(link, &link->conf));
451
452 /*** Set up 32k window for shared memory (transmit and control) ************/
453 req.Attributes =
454 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
455 req.Base = 0;
456 req.Size = 0x8000;
457 req.AccessSpeed = ray_mem_speed;
458 CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &link->win));
459 mem.CardOffset = 0x0000;
460 mem.Page = 0;
461 CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem));
462 local->sram = ioremap(req.Base, req.Size);
463
464 /*** Set up 16k window for shared memory (receive buffer) ***************/
465 req.Attributes =
466 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
467 req.Base = 0;
468 req.Size = 0x4000;
469 req.AccessSpeed = ray_mem_speed;
470 CS_CHECK(RequestWindow,
471 pcmcia_request_window(&link, &req, &local->rmem_handle));
472 mem.CardOffset = 0x8000;
473 mem.Page = 0;
474 CS_CHECK(MapMemPage, pcmcia_map_mem_page(local->rmem_handle, &mem));
475 local->rmem = ioremap(req.Base, req.Size);
476
477 /*** Set up window for attribute memory ***********************************/
478 req.Attributes =
479 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
480 req.Base = 0;
481 req.Size = 0x1000;
482 req.AccessSpeed = ray_mem_speed;
483 CS_CHECK(RequestWindow,
484 pcmcia_request_window(&link, &req, &local->amem_handle));
485 mem.CardOffset = 0x0000;
486 mem.Page = 0;
487 CS_CHECK(MapMemPage, pcmcia_map_mem_page(local->amem_handle, &mem));
488 local->amem = ioremap(req.Base, req.Size);
489
490 DEBUG(3, "ray_config sram=%p\n", local->sram);
491 DEBUG(3, "ray_config rmem=%p\n", local->rmem);
492 DEBUG(3, "ray_config amem=%p\n", local->amem);
493 if (ray_init(dev) < 0) {
494 ray_release(link);
495 return -ENODEV;
496 }
497
498 SET_NETDEV_DEV(dev, &handle_to_dev(link));
499 i = register_netdev(dev);
500 if (i != 0) {
501 printk("ray_config register_netdev() failed\n");
502 ray_release(link);
503 return i;
504 }
505
506 strcpy(local->node.dev_name, dev->name);
507 link->dev_node = &local->node;
508
509 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n",
510 dev->name, dev->irq, dev->dev_addr);
511
512 return 0;
513
514 cs_failed:
515 cs_error(link, last_fn, last_ret);
516
517 ray_release(link);
518 return -ENODEV;
519 } /* ray_config */
520
521 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
522 {
523 return dev->sram + CCS_BASE;
524 }
525
526 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
527 {
528 /*
529 * This looks nonsensical, since there is a separate
530 * RCS_BASE. But the difference between a "struct rcs"
531 * and a "struct ccs" ends up being in the _index_ off
532 * the base, so the base pointer is the same for both
533 * ccs/rcs.
534 */
535 return dev->sram + CCS_BASE;
536 }
537
538 /*===========================================================================*/
539 static int ray_init(struct net_device *dev)
540 {
541 int i;
542 UCHAR *p;
543 struct ccs __iomem *pccs;
544 ray_dev_t *local = netdev_priv(dev);
545 struct pcmcia_device *link = local->finder;
546 DEBUG(1, "ray_init(0x%p)\n", dev);
547 if (!(pcmcia_dev_present(link))) {
548 DEBUG(0, "ray_init - device not present\n");
549 return -1;
550 }
551
552 local->net_type = net_type;
553 local->sta_type = TYPE_STA;
554
555 /* Copy the startup results to local memory */
556 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,
557 sizeof(struct startup_res_6));
558
559 /* Check Power up test status and get mac address from card */
560 if (local->startup_res.startup_word != 0x80) {
561 printk(KERN_INFO "ray_init ERROR card status = %2x\n",
562 local->startup_res.startup_word);
563 local->card_status = CARD_INIT_ERROR;
564 return -1;
565 }
566
567 local->fw_ver = local->startup_res.firmware_version[0];
568 local->fw_bld = local->startup_res.firmware_version[1];
569 local->fw_var = local->startup_res.firmware_version[2];
570 DEBUG(1, "ray_init firmware version %d.%d \n", local->fw_ver,
571 local->fw_bld);
572
573 local->tib_length = 0x20;
574 if ((local->fw_ver == 5) && (local->fw_bld >= 30))
575 local->tib_length = local->startup_res.tib_length;
576 DEBUG(2, "ray_init tib_length = 0x%02x\n", local->tib_length);
577 /* Initialize CCS's to buffer free state */
578 pccs = ccs_base(local);
579 for (i = 0; i < NUMBER_OF_CCS; i++) {
580 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
581 }
582 init_startup_params(local);
583
584 /* copy mac address to startup parameters */
585 if (parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) {
586 p = local->sparm.b4.a_mac_addr;
587 } else {
588 memcpy(&local->sparm.b4.a_mac_addr,
589 &local->startup_res.station_addr, ADDRLEN);
590 p = local->sparm.b4.a_mac_addr;
591 }
592
593 clear_interrupt(local); /* Clear any interrupt from the card */
594 local->card_status = CARD_AWAITING_PARAM;
595 DEBUG(2, "ray_init ending\n");
596 return 0;
597 } /* ray_init */
598
599 /*===========================================================================*/
600 /* Download startup parameters to the card and command it to read them */
601 static int dl_startup_params(struct net_device *dev)
602 {
603 int ccsindex;
604 ray_dev_t *local = netdev_priv(dev);
605 struct ccs __iomem *pccs;
606 struct pcmcia_device *link = local->finder;
607
608 DEBUG(1, "dl_startup_params entered\n");
609 if (!(pcmcia_dev_present(link))) {
610 DEBUG(2, "ray_cs dl_startup_params - device not present\n");
611 return -1;
612 }
613
614 /* Copy parameters to host to ECF area */
615 if (local->fw_ver == 0x55)
616 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
617 sizeof(struct b4_startup_params));
618 else
619 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
620 sizeof(struct b5_startup_params));
621
622 /* Fill in the CCS fields for the ECF */
623 if ((ccsindex = get_free_ccs(local)) < 0)
624 return -1;
625 local->dl_param_ccs = ccsindex;
626 pccs = ccs_base(local) + ccsindex;
627 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
628 DEBUG(2, "dl_startup_params start ccsindex = %d\n",
629 local->dl_param_ccs);
630 /* Interrupt the firmware to process the command */
631 if (interrupt_ecf(local, ccsindex)) {
632 printk(KERN_INFO "ray dl_startup_params failed - "
633 "ECF not ready for intr\n");
634 local->card_status = CARD_DL_PARAM_ERROR;
635 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
636 return -2;
637 }
638 local->card_status = CARD_DL_PARAM;
639 /* Start kernel timer to wait for dl startup to complete. */
640 local->timer.expires = jiffies + HZ / 2;
641 local->timer.data = (long)local;
642 local->timer.function = &verify_dl_startup;
643 add_timer(&local->timer);
644 DEBUG(2,
645 "ray_cs dl_startup_params started timer for verify_dl_startup\n");
646 return 0;
647 } /* dl_startup_params */
648
649 /*===========================================================================*/
650 static void init_startup_params(ray_dev_t *local)
651 {
652 int i;
653
654 if (country > JAPAN_TEST)
655 country = USA;
656 else if (country < USA)
657 country = USA;
658 /* structure for hop time and beacon period is defined here using
659 * New 802.11D6.1 format. Card firmware is still using old format
660 * until version 6.
661 * Before After
662 * a_hop_time ms byte a_hop_time ms byte
663 * a_hop_time 2s byte a_hop_time ls byte
664 * a_hop_time ls byte a_beacon_period ms byte
665 * a_beacon_period a_beacon_period ls byte
666 *
667 * a_hop_time = uS a_hop_time = KuS
668 * a_beacon_period = hops a_beacon_period = KuS
669 *//* 64ms = 010000 */
670 if (local->fw_ver == 0x55) {
671 memcpy((UCHAR *) &local->sparm.b4, b4_default_startup_parms,
672 sizeof(struct b4_startup_params));
673 /* Translate sane kus input values to old build 4/5 format */
674 /* i = hop time in uS truncated to 3 bytes */
675 i = (hop_dwell * 1024) & 0xffffff;
676 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
677 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
678 local->sparm.b4.a_beacon_period[0] = 0;
679 local->sparm.b4.a_beacon_period[1] =
680 ((beacon_period / hop_dwell) - 1) & 0xff;
681 local->sparm.b4.a_curr_country_code = country;
682 local->sparm.b4.a_hop_pattern_length =
683 hop_pattern_length[(int)country] - 1;
684 if (bc) {
685 local->sparm.b4.a_ack_timeout = 0x50;
686 local->sparm.b4.a_sifs = 0x3f;
687 }
688 } else { /* Version 5 uses real kus values */
689 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms,
690 sizeof(struct b5_startup_params));
691
692 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
693 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
694 local->sparm.b5.a_beacon_period[0] =
695 (beacon_period >> 8) & 0xff;
696 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
697 if (psm)
698 local->sparm.b5.a_power_mgt_state = 1;
699 local->sparm.b5.a_curr_country_code = country;
700 local->sparm.b5.a_hop_pattern_length =
701 hop_pattern_length[(int)country];
702 }
703
704 local->sparm.b4.a_network_type = net_type & 0x01;
705 local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
706
707 if (essid != NULL)
708 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
709 } /* init_startup_params */
710
711 /*===========================================================================*/
712 static void verify_dl_startup(u_long data)
713 {
714 ray_dev_t *local = (ray_dev_t *) data;
715 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
716 UCHAR status;
717 struct pcmcia_device *link = local->finder;
718
719 if (!(pcmcia_dev_present(link))) {
720 DEBUG(2, "ray_cs verify_dl_startup - device not present\n");
721 return;
722 }
723 #ifdef PCMCIA_DEBUG
724 if (pc_debug > 2) {
725 int i;
726 printk(KERN_DEBUG
727 "verify_dl_startup parameters sent via ccs %d:\n",
728 local->dl_param_ccs);
729 for (i = 0; i < sizeof(struct b5_startup_params); i++) {
730 printk(" %2x",
731 (unsigned int)readb(local->sram +
732 HOST_TO_ECF_BASE + i));
733 }
734 printk("\n");
735 }
736 #endif
737
738 status = readb(&pccs->buffer_status);
739 if (status != CCS_BUFFER_FREE) {
740 printk(KERN_INFO
741 "Download startup params failed. Status = %d\n",
742 status);
743 local->card_status = CARD_DL_PARAM_ERROR;
744 return;
745 }
746 if (local->sparm.b4.a_network_type == ADHOC)
747 start_net((u_long) local);
748 else
749 join_net((u_long) local);
750
751 return;
752 } /* end verify_dl_startup */
753
754 /*===========================================================================*/
755 /* Command card to start a network */
756 static void start_net(u_long data)
757 {
758 ray_dev_t *local = (ray_dev_t *) data;
759 struct ccs __iomem *pccs;
760 int ccsindex;
761 struct pcmcia_device *link = local->finder;
762 if (!(pcmcia_dev_present(link))) {
763 DEBUG(2, "ray_cs start_net - device not present\n");
764 return;
765 }
766 /* Fill in the CCS fields for the ECF */
767 if ((ccsindex = get_free_ccs(local)) < 0)
768 return;
769 pccs = ccs_base(local) + ccsindex;
770 writeb(CCS_START_NETWORK, &pccs->cmd);
771 writeb(0, &pccs->var.start_network.update_param);
772 /* Interrupt the firmware to process the command */
773 if (interrupt_ecf(local, ccsindex)) {
774 DEBUG(1, "ray start net failed - card not ready for intr\n");
775 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
776 return;
777 }
778 local->card_status = CARD_DOING_ACQ;
779 return;
780 } /* end start_net */
781
782 /*===========================================================================*/
783 /* Command card to join a network */
784 static void join_net(u_long data)
785 {
786 ray_dev_t *local = (ray_dev_t *) data;
787
788 struct ccs __iomem *pccs;
789 int ccsindex;
790 struct pcmcia_device *link = local->finder;
791
792 if (!(pcmcia_dev_present(link))) {
793 DEBUG(2, "ray_cs join_net - device not present\n");
794 return;
795 }
796 /* Fill in the CCS fields for the ECF */
797 if ((ccsindex = get_free_ccs(local)) < 0)
798 return;
799 pccs = ccs_base(local) + ccsindex;
800 writeb(CCS_JOIN_NETWORK, &pccs->cmd);
801 writeb(0, &pccs->var.join_network.update_param);
802 writeb(0, &pccs->var.join_network.net_initiated);
803 /* Interrupt the firmware to process the command */
804 if (interrupt_ecf(local, ccsindex)) {
805 DEBUG(1, "ray join net failed - card not ready for intr\n");
806 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
807 return;
808 }
809 local->card_status = CARD_DOING_ACQ;
810 return;
811 }
812
813 /*============================================================================
814 After a card is removed, ray_release() will unregister the net
815 device, and release the PCMCIA configuration. If the device is
816 still open, this will be postponed until it is closed.
817 =============================================================================*/
818 static void ray_release(struct pcmcia_device *link)
819 {
820 struct net_device *dev = link->priv;
821 ray_dev_t *local = netdev_priv(dev);
822 int i;
823
824 DEBUG(1, "ray_release(0x%p)\n", link);
825
826 del_timer(&local->timer);
827
828 iounmap(local->sram);
829 iounmap(local->rmem);
830 iounmap(local->amem);
831 /* Do bother checking to see if these succeed or not */
832 i = pcmcia_release_window(local->amem_handle);
833 if (i != 0)
834 DEBUG(0, "ReleaseWindow(local->amem) ret = %x\n", i);
835 i = pcmcia_release_window(local->rmem_handle);
836 if (i != 0)
837 DEBUG(0, "ReleaseWindow(local->rmem) ret = %x\n", i);
838 pcmcia_disable_device(link);
839
840 DEBUG(2, "ray_release ending\n");
841 }
842
843 static int ray_suspend(struct pcmcia_device *link)
844 {
845 struct net_device *dev = link->priv;
846
847 if (link->open)
848 netif_device_detach(dev);
849
850 return 0;
851 }
852
853 static int ray_resume(struct pcmcia_device *link)
854 {
855 struct net_device *dev = link->priv;
856
857 if (link->open) {
858 ray_reset(dev);
859 netif_device_attach(dev);
860 }
861
862 return 0;
863 }
864
865 /*===========================================================================*/
866 static int ray_dev_init(struct net_device *dev)
867 {
868 #ifdef RAY_IMMEDIATE_INIT
869 int i;
870 #endif /* RAY_IMMEDIATE_INIT */
871 ray_dev_t *local = netdev_priv(dev);
872 struct pcmcia_device *link = local->finder;
873
874 DEBUG(1, "ray_dev_init(dev=%p)\n", dev);
875 if (!(pcmcia_dev_present(link))) {
876 DEBUG(2, "ray_dev_init - device not present\n");
877 return -1;
878 }
879 #ifdef RAY_IMMEDIATE_INIT
880 /* Download startup parameters */
881 if ((i = dl_startup_params(dev)) < 0) {
882 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
883 "returns 0x%x\n", i);
884 return -1;
885 }
886 #else /* RAY_IMMEDIATE_INIT */
887 /* Postpone the card init so that we can still configure the card,
888 * for example using the Wireless Extensions. The init will happen
889 * in ray_open() - Jean II */
890 DEBUG(1,
891 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
892 local->card_status);
893 #endif /* RAY_IMMEDIATE_INIT */
894
895 /* copy mac and broadcast addresses to linux device */
896 memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
897 memset(dev->broadcast, 0xff, ETH_ALEN);
898
899 DEBUG(2, "ray_dev_init ending\n");
900 return 0;
901 }
902
903 /*===========================================================================*/
904 static int ray_dev_config(struct net_device *dev, struct ifmap *map)
905 {
906 ray_dev_t *local = netdev_priv(dev);
907 struct pcmcia_device *link = local->finder;
908 /* Dummy routine to satisfy device structure */
909 DEBUG(1, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map);
910 if (!(pcmcia_dev_present(link))) {
911 DEBUG(2, "ray_dev_config - device not present\n");
912 return -1;
913 }
914
915 return 0;
916 }
917
918 /*===========================================================================*/
919 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
920 struct net_device *dev)
921 {
922 ray_dev_t *local = netdev_priv(dev);
923 struct pcmcia_device *link = local->finder;
924 short length = skb->len;
925
926 if (!pcmcia_dev_present(link)) {
927 DEBUG(2, "ray_dev_start_xmit - device not present\n");
928 dev_kfree_skb(skb);
929 return NETDEV_TX_OK;
930 }
931
932 DEBUG(3, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
933 if (local->authentication_state == NEED_TO_AUTH) {
934 DEBUG(0, "ray_cs Sending authentication request.\n");
935 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
936 local->authentication_state = AUTHENTICATED;
937 netif_stop_queue(dev);
938 return NETDEV_TX_BUSY;
939 }
940 }
941
942 if (length < ETH_ZLEN) {
943 if (skb_padto(skb, ETH_ZLEN))
944 return NETDEV_TX_OK;
945 length = ETH_ZLEN;
946 }
947 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) {
948 case XMIT_NO_CCS:
949 case XMIT_NEED_AUTH:
950 netif_stop_queue(dev);
951 return NETDEV_TX_BUSY;
952 case XMIT_NO_INTR:
953 case XMIT_MSG_BAD:
954 case XMIT_OK:
955 default:
956 dev->trans_start = jiffies;
957 dev_kfree_skb(skb);
958 }
959
960 return NETDEV_TX_OK;
961 } /* ray_dev_start_xmit */
962
963 /*===========================================================================*/
964 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
965 UCHAR msg_type)
966 {
967 ray_dev_t *local = netdev_priv(dev);
968 struct ccs __iomem *pccs;
969 int ccsindex;
970 int offset;
971 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */
972 short int addr; /* Address of xmit buffer in card space */
973
974 DEBUG(3, "ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev);
975 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) {
976 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",
977 len);
978 return XMIT_MSG_BAD;
979 }
980 switch (ccsindex = get_free_tx_ccs(local)) {
981 case ECCSBUSY:
982 DEBUG(2, "ray_hw_xmit tx_ccs table busy\n");
983 case ECCSFULL:
984 DEBUG(2, "ray_hw_xmit No free tx ccs\n");
985 case ECARDGONE:
986 netif_stop_queue(dev);
987 return XMIT_NO_CCS;
988 default:
989 break;
990 }
991 addr = TX_BUF_BASE + (ccsindex << 11);
992
993 if (msg_type == DATA_TYPE) {
994 local->stats.tx_bytes += len;
995 local->stats.tx_packets++;
996 }
997
998 ptx = local->sram + addr;
999
1000 ray_build_header(local, ptx, msg_type, data);
1001 if (translate) {
1002 offset = translate_frame(local, ptx, data, len);
1003 } else { /* Encapsulate frame */
1004 /* TBD TIB length will move address of ptx->var */
1005 memcpy_toio(&ptx->var, data, len);
1006 offset = 0;
1007 }
1008
1009 /* fill in the CCS */
1010 pccs = ccs_base(local) + ccsindex;
1011 len += TX_HEADER_LENGTH + offset;
1012 writeb(CCS_TX_REQUEST, &pccs->cmd);
1013 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
1014 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
1015 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
1016 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
1017 /* TBD still need psm_cam? */
1018 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
1019 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
1020 writeb(0, &pccs->var.tx_request.antenna);
1021 DEBUG(3, "ray_hw_xmit default_tx_rate = 0x%x\n",
1022 local->net_default_tx_rate);
1023
1024 /* Interrupt the firmware to process the command */
1025 if (interrupt_ecf(local, ccsindex)) {
1026 DEBUG(2, "ray_hw_xmit failed - ECF not ready for intr\n");
1027 /* TBD very inefficient to copy packet to buffer, and then not
1028 send it, but the alternative is to queue the messages and that
1029 won't be done for a while. Maybe set tbusy until a CCS is free?
1030 */
1031 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
1032 return XMIT_NO_INTR;
1033 }
1034 return XMIT_OK;
1035 } /* end ray_hw_xmit */
1036
1037 /*===========================================================================*/
1038 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
1039 unsigned char *data, int len)
1040 {
1041 __be16 proto = ((struct ethhdr *)data)->h_proto;
1042 if (ntohs(proto) >= 1536) { /* DIX II ethernet frame */
1043 DEBUG(3, "ray_cs translate_frame DIX II\n");
1044 /* Copy LLC header to card buffer */
1045 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
1046 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc),
1047 (UCHAR *) &proto, 2);
1048 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
1049 /* This is the selective translation table, only 2 entries */
1050 writeb(0xf8,
1051 &((struct snaphdr_t __iomem *)ptx->var)->org[3]);
1052 }
1053 /* Copy body of ethernet packet without ethernet header */
1054 memcpy_toio((void __iomem *)&ptx->var +
1055 sizeof(struct snaphdr_t), data + ETH_HLEN,
1056 len - ETH_HLEN);
1057 return (int)sizeof(struct snaphdr_t) - ETH_HLEN;
1058 } else { /* already 802 type, and proto is length */
1059 DEBUG(3, "ray_cs translate_frame 802\n");
1060 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
1061 DEBUG(3, "ray_cs translate_frame evil IPX\n");
1062 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
1063 return 0 - ETH_HLEN;
1064 }
1065 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
1066 return 0 - ETH_HLEN;
1067 }
1068 /* TBD do other frame types */
1069 } /* end translate_frame */
1070
1071 /*===========================================================================*/
1072 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
1073 UCHAR msg_type, unsigned char *data)
1074 {
1075 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
1076 /*** IEEE 802.11 Address field assignments *************
1077 TODS FROMDS addr_1 addr_2 addr_3 addr_4
1078 Adhoc 0 0 dest src (terminal) BSSID N/A
1079 AP to Terminal 0 1 dest AP(BSSID) source N/A
1080 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A
1081 AP to AP 1 1 dest AP src AP dest source
1082 *******************************************************/
1083 if (local->net_type == ADHOC) {
1084 writeb(0, &ptx->mac.frame_ctl_2);
1085 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest,
1086 2 * ADDRLEN);
1087 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
1088 } else { /* infrastructure */
1089
1090 if (local->sparm.b4.a_acting_as_ap_status) {
1091 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
1092 memcpy_toio(ptx->mac.addr_1,
1093 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1094 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
1095 memcpy_toio(ptx->mac.addr_3,
1096 ((struct ethhdr *)data)->h_source, ADDRLEN);
1097 } else { /* Terminal */
1098
1099 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
1100 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1101 memcpy_toio(ptx->mac.addr_2,
1102 ((struct ethhdr *)data)->h_source, ADDRLEN);
1103 memcpy_toio(ptx->mac.addr_3,
1104 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1105 }
1106 }
1107 } /* end encapsulate_frame */
1108
1109 /*===========================================================================*/
1110
1111 static void netdev_get_drvinfo(struct net_device *dev,
1112 struct ethtool_drvinfo *info)
1113 {
1114 strcpy(info->driver, "ray_cs");
1115 }
1116
1117 static const struct ethtool_ops netdev_ethtool_ops = {
1118 .get_drvinfo = netdev_get_drvinfo,
1119 };
1120
1121 /*====================================================================*/
1122
1123 /*------------------------------------------------------------------*/
1124 /*
1125 * Wireless Handler : get protocol name
1126 */
1127 static int ray_get_name(struct net_device *dev,
1128 struct iw_request_info *info, char *cwrq, char *extra)
1129 {
1130 strcpy(cwrq, "IEEE 802.11-FH");
1131 return 0;
1132 }
1133
1134 /*------------------------------------------------------------------*/
1135 /*
1136 * Wireless Handler : set frequency
1137 */
1138 static int ray_set_freq(struct net_device *dev,
1139 struct iw_request_info *info,
1140 struct iw_freq *fwrq, char *extra)
1141 {
1142 ray_dev_t *local = netdev_priv(dev);
1143 int err = -EINPROGRESS; /* Call commit handler */
1144
1145 /* Reject if card is already initialised */
1146 if (local->card_status != CARD_AWAITING_PARAM)
1147 return -EBUSY;
1148
1149 /* Setting by channel number */
1150 if ((fwrq->m > USA_HOP_MOD) || (fwrq->e > 0))
1151 err = -EOPNOTSUPP;
1152 else
1153 local->sparm.b5.a_hop_pattern = fwrq->m;
1154
1155 return err;
1156 }
1157
1158 /*------------------------------------------------------------------*/
1159 /*
1160 * Wireless Handler : get frequency
1161 */
1162 static int ray_get_freq(struct net_device *dev,
1163 struct iw_request_info *info,
1164 struct iw_freq *fwrq, char *extra)
1165 {
1166 ray_dev_t *local = netdev_priv(dev);
1167
1168 fwrq->m = local->sparm.b5.a_hop_pattern;
1169 fwrq->e = 0;
1170 return 0;
1171 }
1172
1173 /*------------------------------------------------------------------*/
1174 /*
1175 * Wireless Handler : set ESSID
1176 */
1177 static int ray_set_essid(struct net_device *dev,
1178 struct iw_request_info *info,
1179 struct iw_point *dwrq, char *extra)
1180 {
1181 ray_dev_t *local = netdev_priv(dev);
1182
1183 /* Reject if card is already initialised */
1184 if (local->card_status != CARD_AWAITING_PARAM)
1185 return -EBUSY;
1186
1187 /* Check if we asked for `any' */
1188 if (dwrq->flags == 0) {
1189 /* Corey : can you do that ? */
1190 return -EOPNOTSUPP;
1191 } else {
1192 /* Check the size of the string */
1193 if (dwrq->length > IW_ESSID_MAX_SIZE) {
1194 return -E2BIG;
1195 }
1196
1197 /* Set the ESSID in the card */
1198 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1199 memcpy(local->sparm.b5.a_current_ess_id, extra, dwrq->length);
1200 }
1201
1202 return -EINPROGRESS; /* Call commit handler */
1203 }
1204
1205 /*------------------------------------------------------------------*/
1206 /*
1207 * Wireless Handler : get ESSID
1208 */
1209 static int ray_get_essid(struct net_device *dev,
1210 struct iw_request_info *info,
1211 struct iw_point *dwrq, char *extra)
1212 {
1213 ray_dev_t *local = netdev_priv(dev);
1214
1215 /* Get the essid that was set */
1216 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1217
1218 /* Push it out ! */
1219 dwrq->length = strlen(extra);
1220 dwrq->flags = 1; /* active */
1221
1222 return 0;
1223 }
1224
1225 /*------------------------------------------------------------------*/
1226 /*
1227 * Wireless Handler : get AP address
1228 */
1229 static int ray_get_wap(struct net_device *dev,
1230 struct iw_request_info *info,
1231 struct sockaddr *awrq, char *extra)
1232 {
1233 ray_dev_t *local = netdev_priv(dev);
1234
1235 memcpy(awrq->sa_data, local->bss_id, ETH_ALEN);
1236 awrq->sa_family = ARPHRD_ETHER;
1237
1238 return 0;
1239 }
1240
1241 /*------------------------------------------------------------------*/
1242 /*
1243 * Wireless Handler : set Bit-Rate
1244 */
1245 static int ray_set_rate(struct net_device *dev,
1246 struct iw_request_info *info,
1247 struct iw_param *vwrq, char *extra)
1248 {
1249 ray_dev_t *local = netdev_priv(dev);
1250
1251 /* Reject if card is already initialised */
1252 if (local->card_status != CARD_AWAITING_PARAM)
1253 return -EBUSY;
1254
1255 /* Check if rate is in range */
1256 if ((vwrq->value != 1000000) && (vwrq->value != 2000000))
1257 return -EINVAL;
1258
1259 /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1260 if ((local->fw_ver == 0x55) && /* Please check */
1261 (vwrq->value == 2000000))
1262 local->net_default_tx_rate = 3;
1263 else
1264 local->net_default_tx_rate = vwrq->value / 500000;
1265
1266 return 0;
1267 }
1268
1269 /*------------------------------------------------------------------*/
1270 /*
1271 * Wireless Handler : get Bit-Rate
1272 */
1273 static int ray_get_rate(struct net_device *dev,
1274 struct iw_request_info *info,
1275 struct iw_param *vwrq, char *extra)
1276 {
1277 ray_dev_t *local = netdev_priv(dev);
1278
1279 if (local->net_default_tx_rate == 3)
1280 vwrq->value = 2000000; /* Hum... */
1281 else
1282 vwrq->value = local->net_default_tx_rate * 500000;
1283 vwrq->fixed = 0; /* We are in auto mode */
1284
1285 return 0;
1286 }
1287
1288 /*------------------------------------------------------------------*/
1289 /*
1290 * Wireless Handler : set RTS threshold
1291 */
1292 static int ray_set_rts(struct net_device *dev,
1293 struct iw_request_info *info,
1294 struct iw_param *vwrq, char *extra)
1295 {
1296 ray_dev_t *local = netdev_priv(dev);
1297 int rthr = vwrq->value;
1298
1299 /* Reject if card is already initialised */
1300 if (local->card_status != CARD_AWAITING_PARAM)
1301 return -EBUSY;
1302
1303 /* if(wrq->u.rts.fixed == 0) we should complain */
1304 if (vwrq->disabled)
1305 rthr = 32767;
1306 else {
1307 if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */
1308 return -EINVAL;
1309 }
1310 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1311 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1312
1313 return -EINPROGRESS; /* Call commit handler */
1314 }
1315
1316 /*------------------------------------------------------------------*/
1317 /*
1318 * Wireless Handler : get RTS threshold
1319 */
1320 static int ray_get_rts(struct net_device *dev,
1321 struct iw_request_info *info,
1322 struct iw_param *vwrq, char *extra)
1323 {
1324 ray_dev_t *local = netdev_priv(dev);
1325
1326 vwrq->value = (local->sparm.b5.a_rts_threshold[0] << 8)
1327 + local->sparm.b5.a_rts_threshold[1];
1328 vwrq->disabled = (vwrq->value == 32767);
1329 vwrq->fixed = 1;
1330
1331 return 0;
1332 }
1333
1334 /*------------------------------------------------------------------*/
1335 /*
1336 * Wireless Handler : set Fragmentation threshold
1337 */
1338 static int ray_set_frag(struct net_device *dev,
1339 struct iw_request_info *info,
1340 struct iw_param *vwrq, char *extra)
1341 {
1342 ray_dev_t *local = netdev_priv(dev);
1343 int fthr = vwrq->value;
1344
1345 /* Reject if card is already initialised */
1346 if (local->card_status != CARD_AWAITING_PARAM)
1347 return -EBUSY;
1348
1349 /* if(wrq->u.frag.fixed == 0) should complain */
1350 if (vwrq->disabled)
1351 fthr = 32767;
1352 else {
1353 if ((fthr < 256) || (fthr > 2347)) /* To check out ! */
1354 return -EINVAL;
1355 }
1356 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1357 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1358
1359 return -EINPROGRESS; /* Call commit handler */
1360 }
1361
1362 /*------------------------------------------------------------------*/
1363 /*
1364 * Wireless Handler : get Fragmentation threshold
1365 */
1366 static int ray_get_frag(struct net_device *dev,
1367 struct iw_request_info *info,
1368 struct iw_param *vwrq, char *extra)
1369 {
1370 ray_dev_t *local = netdev_priv(dev);
1371
1372 vwrq->value = (local->sparm.b5.a_frag_threshold[0] << 8)
1373 + local->sparm.b5.a_frag_threshold[1];
1374 vwrq->disabled = (vwrq->value == 32767);
1375 vwrq->fixed = 1;
1376
1377 return 0;
1378 }
1379
1380 /*------------------------------------------------------------------*/
1381 /*
1382 * Wireless Handler : set Mode of Operation
1383 */
1384 static int ray_set_mode(struct net_device *dev,
1385 struct iw_request_info *info, __u32 *uwrq, char *extra)
1386 {
1387 ray_dev_t *local = netdev_priv(dev);
1388 int err = -EINPROGRESS; /* Call commit handler */
1389 char card_mode = 1;
1390
1391 /* Reject if card is already initialised */
1392 if (local->card_status != CARD_AWAITING_PARAM)
1393 return -EBUSY;
1394
1395 switch (*uwrq) {
1396 case IW_MODE_ADHOC:
1397 card_mode = 0;
1398 /* Fall through */
1399 case IW_MODE_INFRA:
1400 local->sparm.b5.a_network_type = card_mode;
1401 break;
1402 default:
1403 err = -EINVAL;
1404 }
1405
1406 return err;
1407 }
1408
1409 /*------------------------------------------------------------------*/
1410 /*
1411 * Wireless Handler : get Mode of Operation
1412 */
1413 static int ray_get_mode(struct net_device *dev,
1414 struct iw_request_info *info, __u32 *uwrq, char *extra)
1415 {
1416 ray_dev_t *local = netdev_priv(dev);
1417
1418 if (local->sparm.b5.a_network_type)
1419 *uwrq = IW_MODE_INFRA;
1420 else
1421 *uwrq = IW_MODE_ADHOC;
1422
1423 return 0;
1424 }
1425
1426 /*------------------------------------------------------------------*/
1427 /*
1428 * Wireless Handler : get range info
1429 */
1430 static int ray_get_range(struct net_device *dev,
1431 struct iw_request_info *info,
1432 struct iw_point *dwrq, char *extra)
1433 {
1434 struct iw_range *range = (struct iw_range *)extra;
1435
1436 memset((char *)range, 0, sizeof(struct iw_range));
1437
1438 /* Set the length (very important for backward compatibility) */
1439 dwrq->length = sizeof(struct iw_range);
1440
1441 /* Set the Wireless Extension versions */
1442 range->we_version_compiled = WIRELESS_EXT;
1443 range->we_version_source = 9;
1444
1445 /* Set information in the range struct */
1446 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */
1447 range->num_channels = hop_pattern_length[(int)country];
1448 range->num_frequency = 0;
1449 range->max_qual.qual = 0;
1450 range->max_qual.level = 255; /* What's the correct value ? */
1451 range->max_qual.noise = 255; /* Idem */
1452 range->num_bitrates = 2;
1453 range->bitrate[0] = 1000000; /* 1 Mb/s */
1454 range->bitrate[1] = 2000000; /* 2 Mb/s */
1455 return 0;
1456 }
1457
1458 /*------------------------------------------------------------------*/
1459 /*
1460 * Wireless Private Handler : set framing mode
1461 */
1462 static int ray_set_framing(struct net_device *dev,
1463 struct iw_request_info *info,
1464 union iwreq_data *wrqu, char *extra)
1465 {
1466 translate = *(extra); /* Set framing mode */
1467
1468 return 0;
1469 }
1470
1471 /*------------------------------------------------------------------*/
1472 /*
1473 * Wireless Private Handler : get framing mode
1474 */
1475 static int ray_get_framing(struct net_device *dev,
1476 struct iw_request_info *info,
1477 union iwreq_data *wrqu, char *extra)
1478 {
1479 *(extra) = translate;
1480
1481 return 0;
1482 }
1483
1484 /*------------------------------------------------------------------*/
1485 /*
1486 * Wireless Private Handler : get country
1487 */
1488 static int ray_get_country(struct net_device *dev,
1489 struct iw_request_info *info,
1490 union iwreq_data *wrqu, char *extra)
1491 {
1492 *(extra) = country;
1493
1494 return 0;
1495 }
1496
1497 /*------------------------------------------------------------------*/
1498 /*
1499 * Commit handler : called after a bunch of SET operations
1500 */
1501 static int ray_commit(struct net_device *dev, struct iw_request_info *info, /* NULL */
1502 void *zwrq, /* NULL */
1503 char *extra)
1504 { /* NULL */
1505 return 0;
1506 }
1507
1508 /*------------------------------------------------------------------*/
1509 /*
1510 * Stats handler : return Wireless Stats
1511 */
1512 static iw_stats *ray_get_wireless_stats(struct net_device *dev)
1513 {
1514 ray_dev_t *local = netdev_priv(dev);
1515 struct pcmcia_device *link = local->finder;
1516 struct status __iomem *p = local->sram + STATUS_BASE;
1517
1518 local->wstats.status = local->card_status;
1519 #ifdef WIRELESS_SPY
1520 if ((local->spy_data.spy_number > 0)
1521 && (local->sparm.b5.a_network_type == 0)) {
1522 /* Get it from the first node in spy list */
1523 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1524 local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1525 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1526 local->wstats.qual.updated =
1527 local->spy_data.spy_stat[0].updated;
1528 }
1529 #endif /* WIRELESS_SPY */
1530
1531 if (pcmcia_dev_present(link)) {
1532 local->wstats.qual.noise = readb(&p->rxnoise);
1533 local->wstats.qual.updated |= 4;
1534 }
1535
1536 return &local->wstats;
1537 } /* end ray_get_wireless_stats */
1538
1539 /*------------------------------------------------------------------*/
1540 /*
1541 * Structures to export the Wireless Handlers
1542 */
1543
1544 static const iw_handler ray_handler[] = {
1545 [SIOCSIWCOMMIT - SIOCIWFIRST] = (iw_handler) ray_commit,
1546 [SIOCGIWNAME - SIOCIWFIRST] = (iw_handler) ray_get_name,
1547 [SIOCSIWFREQ - SIOCIWFIRST] = (iw_handler) ray_set_freq,
1548 [SIOCGIWFREQ - SIOCIWFIRST] = (iw_handler) ray_get_freq,
1549 [SIOCSIWMODE - SIOCIWFIRST] = (iw_handler) ray_set_mode,
1550 [SIOCGIWMODE - SIOCIWFIRST] = (iw_handler) ray_get_mode,
1551 [SIOCGIWRANGE - SIOCIWFIRST] = (iw_handler) ray_get_range,
1552 #ifdef WIRELESS_SPY
1553 [SIOCSIWSPY - SIOCIWFIRST] = (iw_handler) iw_handler_set_spy,
1554 [SIOCGIWSPY - SIOCIWFIRST] = (iw_handler) iw_handler_get_spy,
1555 [SIOCSIWTHRSPY - SIOCIWFIRST] = (iw_handler) iw_handler_set_thrspy,
1556 [SIOCGIWTHRSPY - SIOCIWFIRST] = (iw_handler) iw_handler_get_thrspy,
1557 #endif /* WIRELESS_SPY */
1558 [SIOCGIWAP - SIOCIWFIRST] = (iw_handler) ray_get_wap,
1559 [SIOCSIWESSID - SIOCIWFIRST] = (iw_handler) ray_set_essid,
1560 [SIOCGIWESSID - SIOCIWFIRST] = (iw_handler) ray_get_essid,
1561 [SIOCSIWRATE - SIOCIWFIRST] = (iw_handler) ray_set_rate,
1562 [SIOCGIWRATE - SIOCIWFIRST] = (iw_handler) ray_get_rate,
1563 [SIOCSIWRTS - SIOCIWFIRST] = (iw_handler) ray_set_rts,
1564 [SIOCGIWRTS - SIOCIWFIRST] = (iw_handler) ray_get_rts,
1565 [SIOCSIWFRAG - SIOCIWFIRST] = (iw_handler) ray_set_frag,
1566 [SIOCGIWFRAG - SIOCIWFIRST] = (iw_handler) ray_get_frag,
1567 };
1568
1569 #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */
1570 #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */
1571 #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */
1572
1573 static const iw_handler ray_private_handler[] = {
1574 [0] = (iw_handler) ray_set_framing,
1575 [1] = (iw_handler) ray_get_framing,
1576 [3] = (iw_handler) ray_get_country,
1577 };
1578
1579 static const struct iw_priv_args ray_private_args[] = {
1580 /* cmd, set_args, get_args, name */
1581 {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0,
1582 "set_framing"},
1583 {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1584 "get_framing"},
1585 {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1586 "get_country"},
1587 };
1588
1589 static const struct iw_handler_def ray_handler_def = {
1590 .num_standard = ARRAY_SIZE(ray_handler),
1591 .num_private = ARRAY_SIZE(ray_private_handler),
1592 .num_private_args = ARRAY_SIZE(ray_private_args),
1593 .standard = ray_handler,
1594 .private = ray_private_handler,
1595 .private_args = ray_private_args,
1596 .get_wireless_stats = ray_get_wireless_stats,
1597 };
1598
1599 /*===========================================================================*/
1600 static int ray_open(struct net_device *dev)
1601 {
1602 ray_dev_t *local = netdev_priv(dev);
1603 struct pcmcia_device *link;
1604 link = local->finder;
1605
1606 DEBUG(1, "ray_open('%s')\n", dev->name);
1607
1608 if (link->open == 0)
1609 local->num_multi = 0;
1610 link->open++;
1611
1612 /* If the card is not started, time to start it ! - Jean II */
1613 if (local->card_status == CARD_AWAITING_PARAM) {
1614 int i;
1615
1616 DEBUG(1, "ray_open: doing init now !\n");
1617
1618 /* Download startup parameters */
1619 if ((i = dl_startup_params(dev)) < 0) {
1620 printk(KERN_INFO
1621 "ray_dev_init dl_startup_params failed - "
1622 "returns 0x%x\n", i);
1623 return -1;
1624 }
1625 }
1626
1627 if (sniffer)
1628 netif_stop_queue(dev);
1629 else
1630 netif_start_queue(dev);
1631
1632 DEBUG(2, "ray_open ending\n");
1633 return 0;
1634 } /* end ray_open */
1635
1636 /*===========================================================================*/
1637 static int ray_dev_close(struct net_device *dev)
1638 {
1639 ray_dev_t *local = netdev_priv(dev);
1640 struct pcmcia_device *link;
1641 link = local->finder;
1642
1643 DEBUG(1, "ray_dev_close('%s')\n", dev->name);
1644
1645 link->open--;
1646 netif_stop_queue(dev);
1647
1648 /* In here, we should stop the hardware (stop card from beeing active)
1649 * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1650 * card is closed we can chage its configuration.
1651 * Probably also need a COR reset to get sane state - Jean II */
1652
1653 return 0;
1654 } /* end ray_dev_close */
1655
1656 /*===========================================================================*/
1657 static void ray_reset(struct net_device *dev)
1658 {
1659 DEBUG(1, "ray_reset entered\n");
1660 return;
1661 }
1662
1663 /*===========================================================================*/
1664 /* Cause a firmware interrupt if it is ready for one */
1665 /* Return nonzero if not ready */
1666 static int interrupt_ecf(ray_dev_t *local, int ccs)
1667 {
1668 int i = 50;
1669 struct pcmcia_device *link = local->finder;
1670
1671 if (!(pcmcia_dev_present(link))) {
1672 DEBUG(2, "ray_cs interrupt_ecf - device not present\n");
1673 return -1;
1674 }
1675 DEBUG(2, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs);
1676
1677 while (i &&
1678 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) &
1679 ECF_INTR_SET))
1680 i--;
1681 if (i == 0) {
1682 DEBUG(2, "ray_cs interrupt_ecf card not ready for interrupt\n");
1683 return -1;
1684 }
1685 /* Fill the mailbox, then kick the card */
1686 writeb(ccs, local->sram + SCB_BASE);
1687 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1688 return 0;
1689 } /* interrupt_ecf */
1690
1691 /*===========================================================================*/
1692 /* Get next free transmit CCS */
1693 /* Return - index of current tx ccs */
1694 static int get_free_tx_ccs(ray_dev_t *local)
1695 {
1696 int i;
1697 struct ccs __iomem *pccs = ccs_base(local);
1698 struct pcmcia_device *link = local->finder;
1699
1700 if (!(pcmcia_dev_present(link))) {
1701 DEBUG(2, "ray_cs get_free_tx_ccs - device not present\n");
1702 return ECARDGONE;
1703 }
1704
1705 if (test_and_set_bit(0, &local->tx_ccs_lock)) {
1706 DEBUG(1, "ray_cs tx_ccs_lock busy\n");
1707 return ECCSBUSY;
1708 }
1709
1710 for (i = 0; i < NUMBER_OF_TX_CCS; i++) {
1711 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1712 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1713 writeb(CCS_END_LIST, &(pccs + i)->link);
1714 local->tx_ccs_lock = 0;
1715 return i;
1716 }
1717 }
1718 local->tx_ccs_lock = 0;
1719 DEBUG(2, "ray_cs ERROR no free tx CCS for raylink card\n");
1720 return ECCSFULL;
1721 } /* get_free_tx_ccs */
1722
1723 /*===========================================================================*/
1724 /* Get next free CCS */
1725 /* Return - index of current ccs */
1726 static int get_free_ccs(ray_dev_t *local)
1727 {
1728 int i;
1729 struct ccs __iomem *pccs = ccs_base(local);
1730 struct pcmcia_device *link = local->finder;
1731
1732 if (!(pcmcia_dev_present(link))) {
1733 DEBUG(2, "ray_cs get_free_ccs - device not present\n");
1734 return ECARDGONE;
1735 }
1736 if (test_and_set_bit(0, &local->ccs_lock)) {
1737 DEBUG(1, "ray_cs ccs_lock busy\n");
1738 return ECCSBUSY;
1739 }
1740
1741 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1742 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1743 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1744 writeb(CCS_END_LIST, &(pccs + i)->link);
1745 local->ccs_lock = 0;
1746 return i;
1747 }
1748 }
1749 local->ccs_lock = 0;
1750 DEBUG(1, "ray_cs ERROR no free CCS for raylink card\n");
1751 return ECCSFULL;
1752 } /* get_free_ccs */
1753
1754 /*===========================================================================*/
1755 static void authenticate_timeout(u_long data)
1756 {
1757 ray_dev_t *local = (ray_dev_t *) data;
1758 del_timer(&local->timer);
1759 printk(KERN_INFO "ray_cs Authentication with access point failed"
1760 " - timeout\n");
1761 join_net((u_long) local);
1762 }
1763
1764 /*===========================================================================*/
1765 static int asc_to_int(char a)
1766 {
1767 if (a < '0')
1768 return -1;
1769 if (a <= '9')
1770 return (a - '0');
1771 if (a < 'A')
1772 return -1;
1773 if (a <= 'F')
1774 return (10 + a - 'A');
1775 if (a < 'a')
1776 return -1;
1777 if (a <= 'f')
1778 return (10 + a - 'a');
1779 return -1;
1780 }
1781
1782 /*===========================================================================*/
1783 static int parse_addr(char *in_str, UCHAR *out)
1784 {
1785 int len;
1786 int i, j, k;
1787 int status;
1788
1789 if (in_str == NULL)
1790 return 0;
1791 if ((len = strlen(in_str)) < 2)
1792 return 0;
1793 memset(out, 0, ADDRLEN);
1794
1795 status = 1;
1796 j = len - 1;
1797 if (j > 12)
1798 j = 12;
1799 i = 5;
1800
1801 while (j > 0) {
1802 if ((k = asc_to_int(in_str[j--])) != -1)
1803 out[i] = k;
1804 else
1805 return 0;
1806
1807 if (j == 0)
1808 break;
1809 if ((k = asc_to_int(in_str[j--])) != -1)
1810 out[i] += k << 4;
1811 else
1812 return 0;
1813 if (!i--)
1814 break;
1815 }
1816 return status;
1817 }
1818
1819 /*===========================================================================*/
1820 static struct net_device_stats *ray_get_stats(struct net_device *dev)
1821 {
1822 ray_dev_t *local = netdev_priv(dev);
1823 struct pcmcia_device *link = local->finder;
1824 struct status __iomem *p = local->sram + STATUS_BASE;
1825 if (!(pcmcia_dev_present(link))) {
1826 DEBUG(2, "ray_cs net_device_stats - device not present\n");
1827 return &local->stats;
1828 }
1829 if (readb(&p->mrx_overflow_for_host)) {
1830 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1831 writeb(0, &p->mrx_overflow);
1832 writeb(0, &p->mrx_overflow_for_host);
1833 }
1834 if (readb(&p->mrx_checksum_error_for_host)) {
1835 local->stats.rx_crc_errors +=
1836 swab16(readw(&p->mrx_checksum_error));
1837 writeb(0, &p->mrx_checksum_error);
1838 writeb(0, &p->mrx_checksum_error_for_host);
1839 }
1840 if (readb(&p->rx_hec_error_for_host)) {
1841 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1842 writeb(0, &p->rx_hec_error);
1843 writeb(0, &p->rx_hec_error_for_host);
1844 }
1845 return &local->stats;
1846 }
1847
1848 /*===========================================================================*/
1849 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value,
1850 int len)
1851 {
1852 ray_dev_t *local = netdev_priv(dev);
1853 struct pcmcia_device *link = local->finder;
1854 int ccsindex;
1855 int i;
1856 struct ccs __iomem *pccs;
1857
1858 if (!(pcmcia_dev_present(link))) {
1859 DEBUG(2, "ray_update_parm - device not present\n");
1860 return;
1861 }
1862
1863 if ((ccsindex = get_free_ccs(local)) < 0) {
1864 DEBUG(0, "ray_update_parm - No free ccs\n");
1865 return;
1866 }
1867 pccs = ccs_base(local) + ccsindex;
1868 writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1869 writeb(objid, &pccs->var.update_param.object_id);
1870 writeb(1, &pccs->var.update_param.number_objects);
1871 writeb(0, &pccs->var.update_param.failure_cause);
1872 for (i = 0; i < len; i++) {
1873 writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1874 }
1875 /* Interrupt the firmware to process the command */
1876 if (interrupt_ecf(local, ccsindex)) {
1877 DEBUG(0, "ray_cs associate failed - ECF not ready for intr\n");
1878 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1879 }
1880 }
1881
1882 /*===========================================================================*/
1883 static void ray_update_multi_list(struct net_device *dev, int all)
1884 {
1885 struct dev_mc_list *dmi, **dmip;
1886 int ccsindex;
1887 struct ccs __iomem *pccs;
1888 int i = 0;
1889 ray_dev_t *local = netdev_priv(dev);
1890 struct pcmcia_device *link = local->finder;
1891 void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1892
1893 if (!(pcmcia_dev_present(link))) {
1894 DEBUG(2, "ray_update_multi_list - device not present\n");
1895 return;
1896 } else
1897 DEBUG(2, "ray_update_multi_list(%p)\n", dev);
1898 if ((ccsindex = get_free_ccs(local)) < 0) {
1899 DEBUG(1, "ray_update_multi - No free ccs\n");
1900 return;
1901 }
1902 pccs = ccs_base(local) + ccsindex;
1903 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1904
1905 if (all) {
1906 writeb(0xff, &pccs->var);
1907 local->num_multi = 0xff;
1908 } else {
1909 /* Copy the kernel's list of MC addresses to card */
1910 for (dmip = &dev->mc_list; (dmi = *dmip) != NULL;
1911 dmip = &dmi->next) {
1912 memcpy_toio(p, dmi->dmi_addr, ETH_ALEN);
1913 DEBUG(1,
1914 "ray_update_multi add addr %02x%02x%02x%02x%02x%02x\n",
1915 dmi->dmi_addr[0], dmi->dmi_addr[1],
1916 dmi->dmi_addr[2], dmi->dmi_addr[3],
1917 dmi->dmi_addr[4], dmi->dmi_addr[5]);
1918 p += ETH_ALEN;
1919 i++;
1920 }
1921 if (i > 256 / ADDRLEN)
1922 i = 256 / ADDRLEN;
1923 writeb((UCHAR) i, &pccs->var);
1924 DEBUG(1, "ray_cs update_multi %d addresses in list\n", i);
1925 /* Interrupt the firmware to process the command */
1926 local->num_multi = i;
1927 }
1928 if (interrupt_ecf(local, ccsindex)) {
1929 DEBUG(1,
1930 "ray_cs update_multi failed - ECF not ready for intr\n");
1931 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1932 }
1933 } /* end ray_update_multi_list */
1934
1935 /*===========================================================================*/
1936 static void set_multicast_list(struct net_device *dev)
1937 {
1938 ray_dev_t *local = netdev_priv(dev);
1939 UCHAR promisc;
1940
1941 DEBUG(2, "ray_cs set_multicast_list(%p)\n", dev);
1942
1943 if (dev->flags & IFF_PROMISC) {
1944 if (local->sparm.b5.a_promiscuous_mode == 0) {
1945 DEBUG(1, "ray_cs set_multicast_list promisc on\n");
1946 local->sparm.b5.a_promiscuous_mode = 1;
1947 promisc = 1;
1948 ray_update_parm(dev, OBJID_promiscuous_mode,
1949 &promisc, sizeof(promisc));
1950 }
1951 } else {
1952 if (local->sparm.b5.a_promiscuous_mode == 1) {
1953 DEBUG(1, "ray_cs set_multicast_list promisc off\n");
1954 local->sparm.b5.a_promiscuous_mode = 0;
1955 promisc = 0;
1956 ray_update_parm(dev, OBJID_promiscuous_mode,
1957 &promisc, sizeof(promisc));
1958 }
1959 }
1960
1961 if (dev->flags & IFF_ALLMULTI)
1962 ray_update_multi_list(dev, 1);
1963 else {
1964 if (local->num_multi != dev->mc_count)
1965 ray_update_multi_list(dev, 0);
1966 }
1967 } /* end set_multicast_list */
1968
1969 /*=============================================================================
1970 * All routines below here are run at interrupt time.
1971 =============================================================================*/
1972 static irqreturn_t ray_interrupt(int irq, void *dev_id)
1973 {
1974 struct net_device *dev = (struct net_device *)dev_id;
1975 struct pcmcia_device *link;
1976 ray_dev_t *local;
1977 struct ccs __iomem *pccs;
1978 struct rcs __iomem *prcs;
1979 UCHAR rcsindex;
1980 UCHAR tmp;
1981 UCHAR cmd;
1982 UCHAR status;
1983
1984 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */
1985 return IRQ_NONE;
1986
1987 DEBUG(4, "ray_cs: interrupt for *dev=%p\n", dev);
1988
1989 local = netdev_priv(dev);
1990 link = (struct pcmcia_device *)local->finder;
1991 if (!pcmcia_dev_present(link)) {
1992 DEBUG(2,
1993 "ray_cs interrupt from device not present or suspended.\n");
1994 return IRQ_NONE;
1995 }
1996 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1997
1998 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
1999 DEBUG(1, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex);
2000 clear_interrupt(local);
2001 return IRQ_HANDLED;
2002 }
2003 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */
2004 pccs = ccs_base(local) + rcsindex;
2005 cmd = readb(&pccs->cmd);
2006 status = readb(&pccs->buffer_status);
2007 switch (cmd) {
2008 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */
2009 del_timer(&local->timer);
2010 if (status == CCS_COMMAND_COMPLETE) {
2011 DEBUG(1,
2012 "ray_cs interrupt download_startup_parameters OK\n");
2013 } else {
2014 DEBUG(1,
2015 "ray_cs interrupt download_startup_parameters fail\n");
2016 }
2017 break;
2018 case CCS_UPDATE_PARAMS:
2019 DEBUG(1, "ray_cs interrupt update params done\n");
2020 if (status != CCS_COMMAND_COMPLETE) {
2021 tmp =
2022 readb(&pccs->var.update_param.
2023 failure_cause);
2024 DEBUG(0,
2025 "ray_cs interrupt update params failed - reason %d\n",
2026 tmp);
2027 }
2028 break;
2029 case CCS_REPORT_PARAMS:
2030 DEBUG(1, "ray_cs interrupt report params done\n");
2031 break;
2032 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
2033 DEBUG(1,
2034 "ray_cs interrupt CCS Update Multicast List done\n");
2035 break;
2036 case CCS_UPDATE_POWER_SAVINGS_MODE:
2037 DEBUG(1,
2038 "ray_cs interrupt update power save mode done\n");
2039 break;
2040 case CCS_START_NETWORK:
2041 case CCS_JOIN_NETWORK:
2042 if (status == CCS_COMMAND_COMPLETE) {
2043 if (readb
2044 (&pccs->var.start_network.net_initiated) ==
2045 1) {
2046 DEBUG(0,
2047 "ray_cs interrupt network \"%s\" started\n",
2048 local->sparm.b4.a_current_ess_id);
2049 } else {
2050 DEBUG(0,
2051 "ray_cs interrupt network \"%s\" joined\n",
2052 local->sparm.b4.a_current_ess_id);
2053 }
2054 memcpy_fromio(&local->bss_id,
2055 pccs->var.start_network.bssid,
2056 ADDRLEN);
2057
2058 if (local->fw_ver == 0x55)
2059 local->net_default_tx_rate = 3;
2060 else
2061 local->net_default_tx_rate =
2062 readb(&pccs->var.start_network.
2063 net_default_tx_rate);
2064 local->encryption =
2065 readb(&pccs->var.start_network.encryption);
2066 if (!sniffer && (local->net_type == INFRA)
2067 && !(local->sparm.b4.a_acting_as_ap_status)) {
2068 authenticate(local);
2069 }
2070 local->card_status = CARD_ACQ_COMPLETE;
2071 } else {
2072 local->card_status = CARD_ACQ_FAILED;
2073
2074 del_timer(&local->timer);
2075 local->timer.expires = jiffies + HZ * 5;
2076 local->timer.data = (long)local;
2077 if (status == CCS_START_NETWORK) {
2078 DEBUG(0,
2079 "ray_cs interrupt network \"%s\" start failed\n",
2080 local->sparm.b4.a_current_ess_id);
2081 local->timer.function = &start_net;
2082 } else {
2083 DEBUG(0,
2084 "ray_cs interrupt network \"%s\" join failed\n",
2085 local->sparm.b4.a_current_ess_id);
2086 local->timer.function = &join_net;
2087 }
2088 add_timer(&local->timer);
2089 }
2090 break;
2091 case CCS_START_ASSOCIATION:
2092 if (status == CCS_COMMAND_COMPLETE) {
2093 local->card_status = CARD_ASSOC_COMPLETE;
2094 DEBUG(0, "ray_cs association successful\n");
2095 } else {
2096 DEBUG(0, "ray_cs association failed,\n");
2097 local->card_status = CARD_ASSOC_FAILED;
2098 join_net((u_long) local);
2099 }
2100 break;
2101 case CCS_TX_REQUEST:
2102 if (status == CCS_COMMAND_COMPLETE) {
2103 DEBUG(3,
2104 "ray_cs interrupt tx request complete\n");
2105 } else {
2106 DEBUG(1,
2107 "ray_cs interrupt tx request failed\n");
2108 }
2109 if (!sniffer)
2110 netif_start_queue(dev);
2111 netif_wake_queue(dev);
2112 break;
2113 case CCS_TEST_MEMORY:
2114 DEBUG(1, "ray_cs interrupt mem test done\n");
2115 break;
2116 case CCS_SHUTDOWN:
2117 DEBUG(1,
2118 "ray_cs interrupt Unexpected CCS returned - Shutdown\n");
2119 break;
2120 case CCS_DUMP_MEMORY:
2121 DEBUG(1, "ray_cs interrupt dump memory done\n");
2122 break;
2123 case CCS_START_TIMER:
2124 DEBUG(2,
2125 "ray_cs interrupt DING - raylink timer expired\n");
2126 break;
2127 default:
2128 DEBUG(1,
2129 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",
2130 rcsindex, cmd);
2131 }
2132 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
2133 } else { /* It's an RCS */
2134
2135 prcs = rcs_base(local) + rcsindex;
2136
2137 switch (readb(&prcs->interrupt_id)) {
2138 case PROCESS_RX_PACKET:
2139 ray_rx(dev, local, prcs);
2140 break;
2141 case REJOIN_NET_COMPLETE:
2142 DEBUG(1, "ray_cs interrupt rejoin net complete\n");
2143 local->card_status = CARD_ACQ_COMPLETE;
2144 /* do we need to clear tx buffers CCS's? */
2145 if (local->sparm.b4.a_network_type == ADHOC) {
2146 if (!sniffer)
2147 netif_start_queue(dev);
2148 } else {
2149 memcpy_fromio(&local->bss_id,
2150 prcs->var.rejoin_net_complete.
2151 bssid, ADDRLEN);
2152 DEBUG(1,
2153 "ray_cs new BSSID = %02x%02x%02x%02x%02x%02x\n",
2154 local->bss_id[0], local->bss_id[1],
2155 local->bss_id[2], local->bss_id[3],
2156 local->bss_id[4], local->bss_id[5]);
2157 if (!sniffer)
2158 authenticate(local);
2159 }
2160 break;
2161 case ROAMING_INITIATED:
2162 DEBUG(1, "ray_cs interrupt roaming initiated\n");
2163 netif_stop_queue(dev);
2164 local->card_status = CARD_DOING_ACQ;
2165 break;
2166 case JAPAN_CALL_SIGN_RXD:
2167 DEBUG(1, "ray_cs interrupt japan call sign rx\n");
2168 break;
2169 default:
2170 DEBUG(1,
2171 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",
2172 rcsindex,
2173 (unsigned int)readb(&prcs->interrupt_id));
2174 break;
2175 }
2176 writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2177 }
2178 clear_interrupt(local);
2179 return IRQ_HANDLED;
2180 } /* ray_interrupt */
2181
2182 /*===========================================================================*/
2183 static void ray_rx(struct net_device *dev, ray_dev_t *local,
2184 struct rcs __iomem *prcs)
2185 {
2186 int rx_len;
2187 unsigned int pkt_addr;
2188 void __iomem *pmsg;
2189 DEBUG(4, "ray_rx process rx packet\n");
2190
2191 /* Calculate address of packet within Rx buffer */
2192 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2193 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2194 /* Length of first packet fragment */
2195 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2196 + readb(&prcs->var.rx_packet.rx_data_length[1]);
2197
2198 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2199 pmsg = local->rmem + pkt_addr;
2200 switch (readb(pmsg)) {
2201 case DATA_TYPE:
2202 DEBUG(4, "ray_rx data type\n");
2203 rx_data(dev, prcs, pkt_addr, rx_len);
2204 break;
2205 case AUTHENTIC_TYPE:
2206 DEBUG(4, "ray_rx authentic type\n");
2207 if (sniffer)
2208 rx_data(dev, prcs, pkt_addr, rx_len);
2209 else
2210 rx_authenticate(local, prcs, pkt_addr, rx_len);
2211 break;
2212 case DEAUTHENTIC_TYPE:
2213 DEBUG(4, "ray_rx deauth type\n");
2214 if (sniffer)
2215 rx_data(dev, prcs, pkt_addr, rx_len);
2216 else
2217 rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2218 break;
2219 case NULL_MSG_TYPE:
2220 DEBUG(3, "ray_cs rx NULL msg\n");
2221 break;
2222 case BEACON_TYPE:
2223 DEBUG(4, "ray_rx beacon type\n");
2224 if (sniffer)
2225 rx_data(dev, prcs, pkt_addr, rx_len);
2226
2227 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr,
2228 rx_len < sizeof(struct beacon_rx) ?
2229 rx_len : sizeof(struct beacon_rx));
2230
2231 local->beacon_rxed = 1;
2232 /* Get the statistics so the card counters never overflow */
2233 ray_get_stats(dev);
2234 break;
2235 default:
2236 DEBUG(0, "ray_cs unknown pkt type %2x\n",
2237 (unsigned int)readb(pmsg));
2238 break;
2239 }
2240
2241 } /* end ray_rx */
2242
2243 /*===========================================================================*/
2244 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
2245 unsigned int pkt_addr, int rx_len)
2246 {
2247 struct sk_buff *skb = NULL;
2248 struct rcs __iomem *prcslink = prcs;
2249 ray_dev_t *local = netdev_priv(dev);
2250 UCHAR *rx_ptr;
2251 int total_len;
2252 int tmp;
2253 #ifdef WIRELESS_SPY
2254 int siglev = local->last_rsl;
2255 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */
2256 #endif
2257
2258 if (!sniffer) {
2259 if (translate) {
2260 /* TBD length needs fixing for translated header */
2261 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2262 rx_len >
2263 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2264 FCS_LEN)) {
2265 DEBUG(0,
2266 "ray_cs invalid packet length %d received \n",
2267 rx_len);
2268 return;
2269 }
2270 } else { /* encapsulated ethernet */
2271
2272 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2273 rx_len >
2274 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2275 FCS_LEN)) {
2276 DEBUG(0,
2277 "ray_cs invalid packet length %d received \n",
2278 rx_len);
2279 return;
2280 }
2281 }
2282 }
2283 DEBUG(4, "ray_cs rx_data packet\n");
2284 /* If fragmented packet, verify sizes of fragments add up */
2285 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2286 DEBUG(1, "ray_cs rx'ed fragment\n");
2287 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2288 + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2289 total_len = tmp;
2290 prcslink = prcs;
2291 do {
2292 tmp -=
2293 (readb(&prcslink->var.rx_packet.rx_data_length[0])
2294 << 8)
2295 + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2296 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index)
2297 == 0xFF || tmp < 0)
2298 break;
2299 prcslink = rcs_base(local)
2300 + readb(&prcslink->link_field);
2301 } while (1);
2302
2303 if (tmp < 0) {
2304 DEBUG(0,
2305 "ray_cs rx_data fragment lengths don't add up\n");
2306 local->stats.rx_dropped++;
2307 release_frag_chain(local, prcs);
2308 return;
2309 }
2310 } else { /* Single unfragmented packet */
2311 total_len = rx_len;
2312 }
2313
2314 skb = dev_alloc_skb(total_len + 5);
2315 if (skb == NULL) {
2316 DEBUG(0, "ray_cs rx_data could not allocate skb\n");
2317 local->stats.rx_dropped++;
2318 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2319 release_frag_chain(local, prcs);
2320 return;
2321 }
2322 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */
2323
2324 DEBUG(4, "ray_cs rx_data total_len = %x, rx_len = %x\n", total_len,
2325 rx_len);
2326
2327 /************************/
2328 /* Reserve enough room for the whole damn packet. */
2329 rx_ptr = skb_put(skb, total_len);
2330 /* Copy the whole packet to sk_buff */
2331 rx_ptr +=
2332 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2333 /* Get source address */
2334 #ifdef WIRELESS_SPY
2335 skb_copy_from_linear_data_offset(skb,
2336 offsetof(struct mac_header, addr_2),
2337 linksrcaddr, ETH_ALEN);
2338 #endif
2339 /* Now, deal with encapsulation/translation/sniffer */
2340 if (!sniffer) {
2341 if (!translate) {
2342 /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2343 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2344 skb_pull(skb, RX_MAC_HEADER_LENGTH);
2345 } else {
2346 /* Do translation */
2347 untranslate(local, skb, total_len);
2348 }
2349 } else { /* sniffer mode, so just pass whole packet */
2350 };
2351
2352 /************************/
2353 /* Now pick up the rest of the fragments if any */
2354 tmp = 17;
2355 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2356 prcslink = prcs;
2357 DEBUG(1, "ray_cs rx_data in fragment loop\n");
2358 do {
2359 prcslink = rcs_base(local)
2360 +
2361 readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2362 rx_len =
2363 ((readb(&prcslink->var.rx_packet.rx_data_length[0])
2364 << 8)
2365 +
2366 readb(&prcslink->var.rx_packet.rx_data_length[1]))
2367 & RX_BUFF_END;
2368 pkt_addr =
2369 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) <<
2370 8)
2371 + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2372 & RX_BUFF_END;
2373
2374 rx_ptr +=
2375 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2376
2377 } while (tmp-- &&
2378 readb(&prcslink->var.rx_packet.next_frag_rcs_index) !=
2379 0xFF);
2380 release_frag_chain(local, prcs);
2381 }
2382
2383 skb->protocol = eth_type_trans(skb, dev);
2384 netif_rx(skb);
2385 local->stats.rx_packets++;
2386 local->stats.rx_bytes += total_len;
2387
2388 /* Gather signal strength per address */
2389 #ifdef WIRELESS_SPY
2390 /* For the Access Point or the node having started the ad-hoc net
2391 * note : ad-hoc work only in some specific configurations, but we
2392 * kludge in ray_get_wireless_stats... */
2393 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) {
2394 /* Update statistics */
2395 /*local->wstats.qual.qual = none ? */
2396 local->wstats.qual.level = siglev;
2397 /*local->wstats.qual.noise = none ? */
2398 local->wstats.qual.updated = 0x2;
2399 }
2400 /* Now, update the spy stuff */
2401 {
2402 struct iw_quality wstats;
2403 wstats.level = siglev;
2404 /* wstats.noise = none ? */
2405 /* wstats.qual = none ? */
2406 wstats.updated = 0x2;
2407 /* Update spy records */
2408 wireless_spy_update(dev, linksrcaddr, &wstats);
2409 }
2410 #endif /* WIRELESS_SPY */
2411 } /* end rx_data */
2412
2413 /*===========================================================================*/
2414 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2415 {
2416 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH);
2417 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2418 __be16 type = *(__be16 *) psnap->ethertype;
2419 int delta;
2420 struct ethhdr *peth;
2421 UCHAR srcaddr[ADDRLEN];
2422 UCHAR destaddr[ADDRLEN];
2423 static UCHAR org_bridge[3] = { 0, 0, 0xf8 };
2424 static UCHAR org_1042[3] = { 0, 0, 0 };
2425
2426 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2427 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2428
2429 #ifdef PCMCIA_DEBUG
2430 if (pc_debug > 3) {
2431 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
2432 DUMP_PREFIX_NONE, 16, 1,
2433 skb->data, 64, true);
2434 printk(KERN_DEBUG
2435 "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2436 ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
2437 psnap->org[0], psnap->org[1], psnap->org[2]);
2438 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data);
2439 }
2440 #endif
2441
2442 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2443 /* not a snap type so leave it alone */
2444 DEBUG(3, "ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2445 psnap->dsap, psnap->ssap, psnap->ctrl);
2446
2447 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2448 peth = (struct ethhdr *)(skb->data + delta);
2449 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2450 } else { /* Its a SNAP */
2451 if (memcmp(psnap->org, org_bridge, 3) == 0) {
2452 /* EtherII and nuke the LLC */
2453 DEBUG(3, "ray_cs untranslate Bridge encap\n");
2454 delta = RX_MAC_HEADER_LENGTH
2455 + sizeof(struct snaphdr_t) - ETH_HLEN;
2456 peth = (struct ethhdr *)(skb->data + delta);
2457 peth->h_proto = type;
2458 } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2459 switch (ntohs(type)) {
2460 case ETH_P_IPX:
2461 case ETH_P_AARP:
2462 DEBUG(3, "ray_cs untranslate RFC IPX/AARP\n");
2463 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2464 peth = (struct ethhdr *)(skb->data + delta);
2465 peth->h_proto =
2466 htons(len - RX_MAC_HEADER_LENGTH);
2467 break;
2468 default:
2469 DEBUG(3, "ray_cs untranslate RFC default\n");
2470 delta = RX_MAC_HEADER_LENGTH +
2471 sizeof(struct snaphdr_t) - ETH_HLEN;
2472 peth = (struct ethhdr *)(skb->data + delta);
2473 peth->h_proto = type;
2474 break;
2475 }
2476 } else {
2477 printk("ray_cs untranslate very confused by packet\n");
2478 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2479 peth = (struct ethhdr *)(skb->data + delta);
2480 peth->h_proto = type;
2481 }
2482 }
2483 /* TBD reserve skb_reserve(skb, delta); */
2484 skb_pull(skb, delta);
2485 DEBUG(3, "untranslate after skb_pull(%d), skb->data = %p\n", delta,
2486 skb->data);
2487 memcpy(peth->h_dest, destaddr, ADDRLEN);
2488 memcpy(peth->h_source, srcaddr, ADDRLEN);
2489 #ifdef PCMCIA_DEBUG
2490 if (pc_debug > 3) {
2491 int i;
2492 printk(KERN_DEBUG "skb->data after untranslate:");
2493 for (i = 0; i < 64; i++)
2494 printk("%02x ", skb->data[i]);
2495 printk("\n");
2496 }
2497 #endif
2498 } /* end untranslate */
2499
2500 /*===========================================================================*/
2501 /* Copy data from circular receive buffer to PC memory.
2502 * dest = destination address in PC memory
2503 * pkt_addr = source address in receive buffer
2504 * len = length of packet to copy
2505 */
2506 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr,
2507 int length)
2508 {
2509 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2510 if (wrap_bytes <= 0) {
2511 memcpy_fromio(dest, local->rmem + pkt_addr, length);
2512 } else { /* Packet wrapped in circular buffer */
2513
2514 memcpy_fromio(dest, local->rmem + pkt_addr,
2515 length - wrap_bytes);
2516 memcpy_fromio(dest + length - wrap_bytes, local->rmem,
2517 wrap_bytes);
2518 }
2519 return length;
2520 }
2521
2522 /*===========================================================================*/
2523 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs)
2524 {
2525 struct rcs __iomem *prcslink = prcs;
2526 int tmp = 17;
2527 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2528
2529 while (tmp--) {
2530 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2531 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2532 DEBUG(1, "ray_cs interrupt bad rcsindex = 0x%x\n",
2533 rcsindex);
2534 break;
2535 }
2536 prcslink = rcs_base(local) + rcsindex;
2537 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2538 }
2539 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2540 }
2541
2542 /*===========================================================================*/
2543 static void authenticate(ray_dev_t *local)
2544 {
2545 struct pcmcia_device *link = local->finder;
2546 DEBUG(0, "ray_cs Starting authentication.\n");
2547 if (!(pcmcia_dev_present(link))) {
2548 DEBUG(2, "ray_cs authenticate - device not present\n");
2549 return;
2550 }
2551
2552 del_timer(&local->timer);
2553 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2554 local->timer.function = &join_net;
2555 } else {
2556 local->timer.function = &authenticate_timeout;
2557 }
2558 local->timer.expires = jiffies + HZ * 2;
2559 local->timer.data = (long)local;
2560 add_timer(&local->timer);
2561 local->authentication_state = AWAITING_RESPONSE;
2562 } /* end authenticate */
2563
2564 /*===========================================================================*/
2565 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2566 unsigned int pkt_addr, int rx_len)
2567 {
2568 UCHAR buff[256];
2569 struct rx_msg *msg = (struct rx_msg *)buff;
2570
2571 del_timer(&local->timer);
2572
2573 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2574 /* if we are trying to get authenticated */
2575 if (local->sparm.b4.a_network_type == ADHOC) {
2576 DEBUG(1, "ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n",
2577 msg->var[0], msg->var[1], msg->var[2], msg->var[3],
2578 msg->var[4], msg->var[5]);
2579 if (msg->var[2] == 1) {
2580 DEBUG(0, "ray_cs Sending authentication response.\n");
2581 if (!build_auth_frame
2582 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2583 local->authentication_state = NEED_TO_AUTH;
2584 memcpy(local->auth_id, msg->mac.addr_2,
2585 ADDRLEN);
2586 }
2587 }
2588 } else { /* Infrastructure network */
2589
2590 if (local->authentication_state == AWAITING_RESPONSE) {
2591 /* Verify authentication sequence #2 and success */
2592 if (msg->var[2] == 2) {
2593 if ((msg->var[3] | msg->var[4]) == 0) {
2594 DEBUG(1, "Authentication successful\n");
2595 local->card_status = CARD_AUTH_COMPLETE;
2596 associate(local);
2597 local->authentication_state =
2598 AUTHENTICATED;
2599 } else {
2600 DEBUG(0, "Authentication refused\n");
2601 local->card_status = CARD_AUTH_REFUSED;
2602 join_net((u_long) local);
2603 local->authentication_state =
2604 UNAUTHENTICATED;
2605 }
2606 }
2607 }
2608 }
2609
2610 } /* end rx_authenticate */
2611
2612 /*===========================================================================*/
2613 static void associate(ray_dev_t *local)
2614 {
2615 struct ccs __iomem *pccs;
2616 struct pcmcia_device *link = local->finder;
2617 struct net_device *dev = link->priv;
2618 int ccsindex;
2619 if (!(pcmcia_dev_present(link))) {
2620 DEBUG(2, "ray_cs associate - device not present\n");
2621 return;
2622 }
2623 /* If no tx buffers available, return */
2624 if ((ccsindex = get_free_ccs(local)) < 0) {
2625 /* TBD should never be here but... what if we are? */
2626 DEBUG(1, "ray_cs associate - No free ccs\n");
2627 return;
2628 }
2629 DEBUG(1, "ray_cs Starting association with access point\n");
2630 pccs = ccs_base(local) + ccsindex;
2631 /* fill in the CCS */
2632 writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2633 /* Interrupt the firmware to process the command */
2634 if (interrupt_ecf(local, ccsindex)) {
2635 DEBUG(1, "ray_cs associate failed - ECF not ready for intr\n");
2636 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2637
2638 del_timer(&local->timer);
2639 local->timer.expires = jiffies + HZ * 2;
2640 local->timer.data = (long)local;
2641 local->timer.function = &join_net;
2642 add_timer(&local->timer);
2643 local->card_status = CARD_ASSOC_FAILED;
2644 return;
2645 }
2646 if (!sniffer)
2647 netif_start_queue(dev);
2648
2649 } /* end associate */
2650
2651 /*===========================================================================*/
2652 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2653 unsigned int pkt_addr, int rx_len)
2654 {
2655 /* UCHAR buff[256];
2656 struct rx_msg *msg = (struct rx_msg *)buff;
2657 */
2658 DEBUG(0, "Deauthentication frame received\n");
2659 local->authentication_state = UNAUTHENTICATED;
2660 /* Need to reauthenticate or rejoin depending on reason code */
2661 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2662 */
2663 }
2664
2665 /*===========================================================================*/
2666 static void clear_interrupt(ray_dev_t *local)
2667 {
2668 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2669 }
2670
2671 /*===========================================================================*/
2672 #ifdef CONFIG_PROC_FS
2673 #define MAXDATA (PAGE_SIZE - 80)
2674
2675 static char *card_status[] = {
2676 "Card inserted - uninitialized", /* 0 */
2677 "Card not downloaded", /* 1 */
2678 "Waiting for download parameters", /* 2 */
2679 "Card doing acquisition", /* 3 */
2680 "Acquisition complete", /* 4 */
2681 "Authentication complete", /* 5 */
2682 "Association complete", /* 6 */
2683 "???", "???", "???", "???", /* 7 8 9 10 undefined */
2684 "Card init error", /* 11 */
2685 "Download parameters error", /* 12 */
2686 "???", /* 13 */
2687 "Acquisition failed", /* 14 */
2688 "Authentication refused", /* 15 */
2689 "Association failed" /* 16 */
2690 };
2691
2692 static char *nettype[] = { "Adhoc", "Infra " };
2693 static char *framing[] = { "Encapsulation", "Translation" }
2694
2695 ;
2696 /*===========================================================================*/
2697 static int ray_cs_proc_show(struct seq_file *m, void *v)
2698 {
2699 /* Print current values which are not available via other means
2700 * eg ifconfig
2701 */
2702 int i;
2703 struct pcmcia_device *link;
2704 struct net_device *dev;
2705 ray_dev_t *local;
2706 UCHAR *p;
2707 struct freq_hop_element *pfh;
2708 UCHAR c[33];
2709
2710 link = this_device;
2711 if (!link)
2712 return 0;
2713 dev = (struct net_device *)link->priv;
2714 if (!dev)
2715 return 0;
2716 local = netdev_priv(dev);
2717 if (!local)
2718 return 0;
2719
2720 seq_puts(m, "Raylink Wireless LAN driver status\n");
2721 seq_printf(m, "%s\n", rcsid);
2722 /* build 4 does not report version, and field is 0x55 after memtest */
2723 seq_puts(m, "Firmware version = ");
2724 if (local->fw_ver == 0x55)
2725 seq_puts(m, "4 - Use dump_cis for more details\n");
2726 else
2727 seq_printf(m, "%2d.%02d.%02d\n",
2728 local->fw_ver, local->fw_bld, local->fw_var);
2729
2730 for (i = 0; i < 32; i++)
2731 c[i] = local->sparm.b5.a_current_ess_id[i];
2732 c[32] = 0;
2733 seq_printf(m, "%s network ESSID = \"%s\"\n",
2734 nettype[local->sparm.b5.a_network_type], c);
2735
2736 p = local->bss_id;
2737 seq_printf(m, "BSSID = %pM\n", p);
2738
2739 seq_printf(m, "Country code = %d\n",
2740 local->sparm.b5.a_curr_country_code);
2741
2742 i = local->card_status;
2743 if (i < 0)
2744 i = 10;
2745 if (i > 16)
2746 i = 10;
2747 seq_printf(m, "Card status = %s\n", card_status[i]);
2748
2749 seq_printf(m, "Framing mode = %s\n", framing[translate]);
2750
2751 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl);
2752
2753 if (local->beacon_rxed) {
2754 /* Pull some fields out of last beacon received */
2755 seq_printf(m, "Beacon Interval = %d Kus\n",
2756 local->last_bcn.beacon_intvl[0]
2757 + 256 * local->last_bcn.beacon_intvl[1]);
2758
2759 p = local->last_bcn.elements;
2760 if (p[0] == C_ESSID_ELEMENT_ID)
2761 p += p[1] + 2;
2762 else {
2763 seq_printf(m,
2764 "Parse beacon failed at essid element id = %d\n",
2765 p[0]);
2766 return 0;
2767 }
2768
2769 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2770 seq_puts(m, "Supported rate codes = ");
2771 for (i = 2; i < p[1] + 2; i++)
2772 seq_printf(m, "0x%02x ", p[i]);
2773 seq_putc(m, '\n');
2774 p += p[1] + 2;
2775 } else {
2776 seq_puts(m, "Parse beacon failed at rates element\n");
2777 return 0;
2778 }
2779
2780 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2781 pfh = (struct freq_hop_element *)p;
2782 seq_printf(m, "Hop dwell = %d Kus\n",
2783 pfh->dwell_time[0] +
2784 256 * pfh->dwell_time[1]);
2785 seq_printf(m, "Hop set = %d \n",
2786 pfh->hop_set);
2787 seq_printf(m, "Hop pattern = %d \n",
2788 pfh->hop_pattern);
2789 seq_printf(m, "Hop index = %d \n",
2790 pfh->hop_index);
2791 p += p[1] + 2;
2792 } else {
2793 seq_puts(m,
2794 "Parse beacon failed at FH param element\n");
2795 return 0;
2796 }
2797 } else {
2798 seq_puts(m, "No beacons received\n");
2799 }
2800 return 0;
2801 }
2802
2803 static int ray_cs_proc_open(struct inode *inode, struct file *file)
2804 {
2805 return single_open(file, ray_cs_proc_show, NULL);
2806 }
2807
2808 static const struct file_operations ray_cs_proc_fops = {
2809 .owner = THIS_MODULE,
2810 .open = ray_cs_proc_open,
2811 .read = seq_read,
2812 .llseek = seq_lseek,
2813 .release = single_release,
2814 };
2815 #endif
2816 /*===========================================================================*/
2817 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2818 {
2819 int addr;
2820 struct ccs __iomem *pccs;
2821 struct tx_msg __iomem *ptx;
2822 int ccsindex;
2823
2824 /* If no tx buffers available, return */
2825 if ((ccsindex = get_free_tx_ccs(local)) < 0) {
2826 DEBUG(1, "ray_cs send authenticate - No free tx ccs\n");
2827 return -1;
2828 }
2829
2830 pccs = ccs_base(local) + ccsindex;
2831
2832 /* Address in card space */
2833 addr = TX_BUF_BASE + (ccsindex << 11);
2834 /* fill in the CCS */
2835 writeb(CCS_TX_REQUEST, &pccs->cmd);
2836 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2837 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2838 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2839 writeb(TX_AUTHENTICATE_LENGTH_LSB,
2840 pccs->var.tx_request.tx_data_length + 1);
2841 writeb(0, &pccs->var.tx_request.pow_sav_mode);
2842
2843 ptx = local->sram + addr;
2844 /* fill in the mac header */
2845 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2846 writeb(0, &ptx->mac.frame_ctl_2);
2847
2848 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2849 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2850 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2851
2852 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2853 memset_io(ptx->var, 0, 6);
2854 writeb(auth_type & 0xff, ptx->var + 2);
2855
2856 /* Interrupt the firmware to process the command */
2857 if (interrupt_ecf(local, ccsindex)) {
2858 DEBUG(1,
2859 "ray_cs send authentication request failed - ECF not ready for intr\n");
2860 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2861 return -1;
2862 }
2863 return 0;
2864 } /* End build_auth_frame */
2865
2866 /*===========================================================================*/
2867 #ifdef CONFIG_PROC_FS
2868 static void raycs_write(const char *name, write_proc_t *w, void *data)
2869 {
2870 struct proc_dir_entry *entry =
2871 create_proc_entry(name, S_IFREG | S_IWUSR, NULL);
2872 if (entry) {
2873 entry->write_proc = w;
2874 entry->data = data;
2875 }
2876 }
2877
2878 static int write_essid(struct file *file, const char __user *buffer,
2879 unsigned long count, void *data)
2880 {
2881 static char proc_essid[33];
2882 int len = count;
2883
2884 if (len > 32)
2885 len = 32;
2886 memset(proc_essid, 0, 33);
2887 if (copy_from_user(proc_essid, buffer, len))
2888 return -EFAULT;
2889 essid = proc_essid;
2890 return count;
2891 }
2892
2893 static int write_int(struct file *file, const char __user *buffer,
2894 unsigned long count, void *data)
2895 {
2896 static char proc_number[10];
2897 char *p;
2898 int nr, len;
2899
2900 if (!count)
2901 return 0;
2902
2903 if (count > 9)
2904 return -EINVAL;
2905 if (copy_from_user(proc_number, buffer, count))
2906 return -EFAULT;
2907 p = proc_number;
2908 nr = 0;
2909 len = count;
2910 do {
2911 unsigned int c = *p - '0';
2912 if (c > 9)
2913 return -EINVAL;
2914 nr = nr * 10 + c;
2915 p++;
2916 } while (--len);
2917 *(int *)data = nr;
2918 return count;
2919 }
2920 #endif
2921
2922 static struct pcmcia_device_id ray_ids[] = {
2923 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2924 PCMCIA_DEVICE_NULL,
2925 };
2926
2927 MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2928
2929 static struct pcmcia_driver ray_driver = {
2930 .owner = THIS_MODULE,
2931 .drv = {
2932 .name = "ray_cs",
2933 },
2934 .probe = ray_probe,
2935 .remove = ray_detach,
2936 .id_table = ray_ids,
2937 .suspend = ray_suspend,
2938 .resume = ray_resume,
2939 };
2940
2941 static int __init init_ray_cs(void)
2942 {
2943 int rc;
2944
2945 DEBUG(1, "%s\n", rcsid);
2946 rc = pcmcia_register_driver(&ray_driver);
2947 DEBUG(1, "raylink init_module register_pcmcia_driver returns 0x%x\n",
2948 rc);
2949
2950 #ifdef CONFIG_PROC_FS
2951 proc_mkdir("driver/ray_cs", NULL);
2952
2953 proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops);
2954 raycs_write("driver/ray_cs/essid", write_essid, NULL);
2955 raycs_write("driver/ray_cs/net_type", write_int, &net_type);
2956 raycs_write("driver/ray_cs/translate", write_int, &translate);
2957 #endif
2958 if (translate != 0)
2959 translate = 1;
2960 return 0;
2961 } /* init_ray_cs */
2962
2963 /*===========================================================================*/
2964
2965 static void __exit exit_ray_cs(void)
2966 {
2967 DEBUG(0, "ray_cs: cleanup_module\n");
2968
2969 #ifdef CONFIG_PROC_FS
2970 remove_proc_entry("driver/ray_cs/ray_cs", NULL);
2971 remove_proc_entry("driver/ray_cs/essid", NULL);
2972 remove_proc_entry("driver/ray_cs/net_type", NULL);
2973 remove_proc_entry("driver/ray_cs/translate", NULL);
2974 remove_proc_entry("driver/ray_cs", NULL);
2975 #endif
2976
2977 pcmcia_unregister_driver(&ray_driver);
2978 } /* exit_ray_cs */
2979
2980 module_init(init_ray_cs);
2981 module_exit(exit_ray_cs);
2982
2983 /*===========================================================================*/
Linux for Ginger Game Console