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ia64/kvm: compilation fix. export account_system_vtime.
[pv_ops_mirror.git] / drivers / net / wireless / ray_cs.c
blob963960dc30f206494f9420a7cb3f799d5b931080
1 /*=============================================================================
2 *
3 * A PCMCIA client driver for the Raylink wireless LAN card.
4 * The starting point for this module was the skeleton.c in the
5 * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net
6 *
7 *
8 * Copyright (c) 1998 Corey Thomas (corey@world.std.com)
9 *
10 * This driver is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 only of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * It is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
22 *
23 * Changes:
24 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
25 * - reorganize kmallocs in ray_attach, checking all for failure
26 * and releasing the previous allocations if one fails
27 *
28 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003
29 * - Audit copy_to_user in ioctl(SIOCGIWESSID)
30 *
31 =============================================================================*/
32
33 #include <linux/module.h>
34 #include <linux/kernel.h>
35 #include <linux/proc_fs.h>
36 #include <linux/ptrace.h>
37 #include <linux/seq_file.h>
38 #include <linux/slab.h>
39 #include <linux/string.h>
40 #include <linux/timer.h>
41 #include <linux/init.h>
42 #include <linux/netdevice.h>
43 #include <linux/etherdevice.h>
44 #include <linux/if_arp.h>
45 #include <linux/ioport.h>
46 #include <linux/skbuff.h>
47 #include <linux/ethtool.h>
48 #include <linux/ieee80211.h>
49
50 #include <pcmcia/cs_types.h>
51 #include <pcmcia/cs.h>
52 #include <pcmcia/cistpl.h>
53 #include <pcmcia/cisreg.h>
54 #include <pcmcia/ds.h>
55 #include <pcmcia/mem_op.h>
56
57 #include <linux/wireless.h>
58 #include <net/iw_handler.h>
59
60 #include <asm/io.h>
61 #include <asm/system.h>
62 #include <asm/byteorder.h>
63 #include <asm/uaccess.h>
64
65 /* Warning : these stuff will slow down the driver... */
66 #define WIRELESS_SPY /* Enable spying addresses */
67 /* Definitions we need for spy */
68 typedef struct iw_statistics iw_stats;
69 typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */
70
71 #include "rayctl.h"
72 #include "ray_cs.h"
73
74 /* All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
75 you do not define PCMCIA_DEBUG at all, all the debug code will be
76 left out. If you compile with PCMCIA_DEBUG=0, the debug code will
77 be present but disabled -- but it can then be enabled for specific
78 modules at load time with a 'pc_debug=#' option to insmod.
79 */
80
81 #ifdef RAYLINK_DEBUG
82 #define PCMCIA_DEBUG RAYLINK_DEBUG
83 #endif
84 #ifdef PCMCIA_DEBUG
85 static int ray_debug;
86 static int pc_debug = PCMCIA_DEBUG;
87 module_param(pc_debug, int, 0);
88 /* #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args); */
89 #define DEBUG(n, args...) if (pc_debug>(n)) printk(args);
90 #else
91 #define DEBUG(n, args...)
92 #endif
93 /** Prototypes based on PCMCIA skeleton driver *******************************/
94 static int ray_config(struct pcmcia_device *link);
95 static void ray_release(struct pcmcia_device *link);
96 static void ray_detach(struct pcmcia_device *p_dev);
97
98 /***** Prototypes indicated by device structure ******************************/
99 static int ray_dev_close(struct net_device *dev);
100 static int ray_dev_config(struct net_device *dev, struct ifmap *map);
101 static struct net_device_stats *ray_get_stats(struct net_device *dev);
102 static int ray_dev_init(struct net_device *dev);
103
104 static const struct ethtool_ops netdev_ethtool_ops;
105
106 static int ray_open(struct net_device *dev);
107 static int ray_dev_start_xmit(struct sk_buff *skb, struct net_device *dev);
108 static void set_multicast_list(struct net_device *dev);
109 static void ray_update_multi_list(struct net_device *dev, int all);
110 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
111 unsigned char *data, int len);
112 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx, UCHAR msg_type,
113 unsigned char *data);
114 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
115 static iw_stats * ray_get_wireless_stats(struct net_device * dev);
116 static const struct iw_handler_def ray_handler_def;
117
118 /***** Prototypes for raylink functions **************************************/
119 static int asc_to_int(char a);
120 static void authenticate(ray_dev_t *local);
121 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
122 static void authenticate_timeout(u_long);
123 static int get_free_ccs(ray_dev_t *local);
124 static int get_free_tx_ccs(ray_dev_t *local);
125 static void init_startup_params(ray_dev_t *local);
126 static int parse_addr(char *in_str, UCHAR *out);
127 static int ray_hw_xmit(unsigned char* data, int len, struct net_device* dev, UCHAR type);
128 static int ray_init(struct net_device *dev);
129 static int interrupt_ecf(ray_dev_t *local, int ccs);
130 static void ray_reset(struct net_device *dev);
131 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
132 static void verify_dl_startup(u_long);
133
134 /* Prototypes for interrpt time functions **********************************/
135 static irqreturn_t ray_interrupt (int reg, void *dev_id);
136 static void clear_interrupt(ray_dev_t *local);
137 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
138 unsigned int pkt_addr, int rx_len);
139 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
140 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
141 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
142 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
143 unsigned int pkt_addr, int rx_len);
144 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs, unsigned int pkt_addr,
145 int rx_len);
146 static void associate(ray_dev_t *local);
147
148 /* Card command functions */
149 static int dl_startup_params(struct net_device *dev);
150 static void join_net(u_long local);
151 static void start_net(u_long local);
152 /* void start_net(ray_dev_t *local); */
153
154 /*===========================================================================*/
155 /* Parameters that can be set with 'insmod' */
156
157 /* ADHOC=0, Infrastructure=1 */
158 static int net_type = ADHOC;
159
160 /* Hop dwell time in Kus (1024 us units defined by 802.11) */
161 static int hop_dwell = 128;
162
163 /* Beacon period in Kus */
164 static int beacon_period = 256;
165
166 /* power save mode (0 = off, 1 = save power) */
167 static int psm;
168
169 /* String for network's Extended Service Set ID. 32 Characters max */
170 static char *essid;
171
172 /* Default to encapsulation unless translation requested */
173 static int translate = 1;
174
175 static int country = USA;
176
177 static int sniffer;
178
179 static int bc;
180
181 /* 48 bit physical card address if overriding card's real physical
182 * address is required. Since IEEE 802.11 addresses are 48 bits
183 * like ethernet, an int can't be used, so a string is used. To
184 * allow use of addresses starting with a decimal digit, the first
185 * character must be a letter and will be ignored. This letter is
186 * followed by up to 12 hex digits which are the address. If less
187 * than 12 digits are used, the address will be left filled with 0's.
188 * Note that bit 0 of the first byte is the broadcast bit, and evil
189 * things will happen if it is not 0 in a card address.
190 */
191 static char *phy_addr = NULL;
192
193
194 /* A struct pcmcia_device structure has fields for most things that are needed
195 to keep track of a socket, but there will usually be some device
196 specific information that also needs to be kept track of. The
197 'priv' pointer in a struct pcmcia_device structure can be used to point to
198 a device-specific private data structure, like this.
199 */
200 static unsigned int ray_mem_speed = 500;
201
202 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
203 static struct pcmcia_device *this_device = NULL;
204
205 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
206 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
207 MODULE_LICENSE("GPL");
208
209 module_param(net_type, int, 0);
210 module_param(hop_dwell, int, 0);
211 module_param(beacon_period, int, 0);
212 module_param(psm, int, 0);
213 module_param(essid, charp, 0);
214 module_param(translate, int, 0);
215 module_param(country, int, 0);
216 module_param(sniffer, int, 0);
217 module_param(bc, int, 0);
218 module_param(phy_addr, charp, 0);
219 module_param(ray_mem_speed, int, 0);
220
221 static UCHAR b5_default_startup_parms[] = {
222 0, 0, /* Adhoc station */
223 'L','I','N','U','X', 0, 0, 0, /* 32 char ESSID */
224 0, 0, 0, 0, 0, 0, 0, 0,
225 0, 0, 0, 0, 0, 0, 0, 0,
226 0, 0, 0, 0, 0, 0, 0, 0,
227 1, 0, /* Active scan, CA Mode */
228 0, 0, 0, 0, 0, 0, /* No default MAC addr */
229 0x7f, 0xff, /* Frag threshold */
230 0x00, 0x80, /* Hop time 128 Kus*/
231 0x01, 0x00, /* Beacon period 256 Kus */
232 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout*/
233 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */
234 0x7f, 0xff, /* RTS threshold */
235 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
236 0x05, /* assoc resp timeout thresh */
237 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max*/
238 0, /* Promiscuous mode */
239 0x0c, 0x0bd, /* Unique word */
240 0x32, /* Slot time */
241 0xff, 0xff, /* roam-low snr, low snr count */
242 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
243 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */
244 /* b4 - b5 differences start here */
245 0x00, 0x3f, /* CW max */
246 0x00, 0x0f, /* CW min */
247 0x04, 0x08, /* Noise gain, limit offset */
248 0x28, 0x28, /* det rssi, med busy offsets */
249 7, /* det sync thresh */
250 0, 2, 2, /* test mode, min, max */
251 0, /* allow broadcast SSID probe resp */
252 0, 0, /* privacy must start, can join */
253 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */
254 };
255
256 static UCHAR b4_default_startup_parms[] = {
257 0, 0, /* Adhoc station */
258 'L','I','N','U','X', 0, 0, 0, /* 32 char ESSID */
259 0, 0, 0, 0, 0, 0, 0, 0,
260 0, 0, 0, 0, 0, 0, 0, 0,
261 0, 0, 0, 0, 0, 0, 0, 0,
262 1, 0, /* Active scan, CA Mode */
263 0, 0, 0, 0, 0, 0, /* No default MAC addr */
264 0x7f, 0xff, /* Frag threshold */
265 0x02, 0x00, /* Hop time */
266 0x00, 0x01, /* Beacon period */
267 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout*/
268 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */
269 0x7f, 0xff, /* RTS threshold */
270 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
271 0x05, /* assoc resp timeout thresh */
272 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max*/
273 0, /* Promiscuous mode */
274 0x0c, 0x0bd, /* Unique word */
275 0x4e, /* Slot time (TBD seems wrong)*/
276 0xff, 0xff, /* roam-low snr, low snr count */
277 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
278 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */
279 /* b4 - b5 differences start here */
280 0x3f, 0x0f, /* CW max, min */
281 0x04, 0x08, /* Noise gain, limit offset */
282 0x28, 0x28, /* det rssi, med busy offsets */
283 7, /* det sync thresh */
284 0, 2, 2 /* test mode, min, max*/
285 };
286 /*===========================================================================*/
287 static unsigned char eth2_llc[] = {0xaa, 0xaa, 3, 0, 0, 0};
288
289 static char hop_pattern_length[] = { 1,
290 USA_HOP_MOD, EUROPE_HOP_MOD,
291 JAPAN_HOP_MOD, KOREA_HOP_MOD,
292 SPAIN_HOP_MOD, FRANCE_HOP_MOD,
293 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
294 JAPAN_TEST_HOP_MOD
295 };
296
297 static char rcsid[] = "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
298
299 /*=============================================================================
300 ray_attach() creates an "instance" of the driver, allocating
301 local data structures for one device. The device is registered
302 with Card Services.
303 The dev_link structure is initialized, but we don't actually
304 configure the card at this point -- we wait until we receive a
305 card insertion event.
306 =============================================================================*/
307 static int ray_probe(struct pcmcia_device *p_dev)
308 {
309 ray_dev_t *local;
310 struct net_device *dev;
311
312 DEBUG(1, "ray_attach()\n");
313
314 /* Allocate space for private device-specific data */
315 dev = alloc_etherdev(sizeof(ray_dev_t));
316 if (!dev)
317 goto fail_alloc_dev;
318
319 local = netdev_priv(dev);
320 local->finder = p_dev;
321
322 /* The io structure describes IO port mapping. None used here */
323 p_dev->io.NumPorts1 = 0;
324 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
325 p_dev->io.IOAddrLines = 5;
326
327 /* Interrupt setup. For PCMCIA, driver takes what's given */
328 p_dev->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
329 p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
330 p_dev->irq.Handler = &ray_interrupt;
331
332 /* General socket configuration */
333 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
334 p_dev->conf.IntType = INT_MEMORY_AND_IO;
335 p_dev->conf.ConfigIndex = 1;
336
337 p_dev->priv = dev;
338 p_dev->irq.Instance = dev;
339
340 local->finder = p_dev;
341 local->card_status = CARD_INSERTED;
342 local->authentication_state = UNAUTHENTICATED;
343 local->num_multi = 0;
344 DEBUG(2,"ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n",
345 p_dev,dev,local,&ray_interrupt);
346
347 /* Raylink entries in the device structure */
348 dev->hard_start_xmit = &ray_dev_start_xmit;
349 dev->set_config = &ray_dev_config;
350 dev->get_stats = &ray_get_stats;
351 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
352 dev->wireless_handlers = &ray_handler_def;
353 #ifdef WIRELESS_SPY
354 local->wireless_data.spy_data = &local->spy_data;
355 dev->wireless_data = &local->wireless_data;
356 #endif /* WIRELESS_SPY */
357
358 dev->set_multicast_list = &set_multicast_list;
359
360 DEBUG(2,"ray_cs ray_attach calling ether_setup.)\n");
361 dev->init = &ray_dev_init;
362 dev->open = &ray_open;
363 dev->stop = &ray_dev_close;
364 netif_stop_queue(dev);
365
366 init_timer(&local->timer);
367
368 this_device = p_dev;
369 return ray_config(p_dev);
370
371 fail_alloc_dev:
372 return -ENOMEM;
373 } /* ray_attach */
374 /*=============================================================================
375 This deletes a driver "instance". The device is de-registered
376 with Card Services. If it has been released, all local data
377 structures are freed. Otherwise, the structures will be freed
378 when the device is released.
379 =============================================================================*/
380 static void ray_detach(struct pcmcia_device *link)
381 {
382 struct net_device *dev;
383 ray_dev_t *local;
384
385 DEBUG(1, "ray_detach(0x%p)\n", link);
386
387 this_device = NULL;
388 dev = link->priv;
389
390 ray_release(link);
391
392 local = netdev_priv(dev);
393 del_timer(&local->timer);
394
395 if (link->priv) {
396 if (link->dev_node) unregister_netdev(dev);
397 free_netdev(dev);
398 }
399 DEBUG(2,"ray_cs ray_detach ending\n");
400 } /* ray_detach */
401 /*=============================================================================
402 ray_config() is run after a CARD_INSERTION event
403 is received, to configure the PCMCIA socket, and to make the
404 ethernet device available to the system.
405 =============================================================================*/
406 #define CS_CHECK(fn, ret) \
407 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
408 #define MAX_TUPLE_SIZE 128
409 static int ray_config(struct pcmcia_device *link)
410 {
411 int last_fn = 0, last_ret = 0;
412 int i;
413 win_req_t req;
414 memreq_t mem;
415 struct net_device *dev = (struct net_device *)link->priv;
416 ray_dev_t *local = netdev_priv(dev);
417 DECLARE_MAC_BUF(mac);
418
419 DEBUG(1, "ray_config(0x%p)\n", link);
420
421 /* Determine card type and firmware version */
422 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n",
423 link->prod_id[0] ? link->prod_id[0] : " ",
424 link->prod_id[1] ? link->prod_id[1] : " ",
425 link->prod_id[2] ? link->prod_id[2] : " ",
426 link->prod_id[3] ? link->prod_id[3] : " ");
427
428 /* Now allocate an interrupt line. Note that this does not
429 actually assign a handler to the interrupt.
430 */
431 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
432 dev->irq = link->irq.AssignedIRQ;
433
434 /* This actually configures the PCMCIA socket -- setting up
435 the I/O windows and the interrupt mapping.
436 */
437 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
438
439 /*** Set up 32k window for shared memory (transmit and control) ************/
440 req.Attributes = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
441 req.Base = 0;
442 req.Size = 0x8000;
443 req.AccessSpeed = ray_mem_speed;
444 CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &link->win));
445 mem.CardOffset = 0x0000; mem.Page = 0;
446 CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem));
447 local->sram = ioremap(req.Base,req.Size);
448
449 /*** Set up 16k window for shared memory (receive buffer) ***************/
450 req.Attributes = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
451 req.Base = 0;
452 req.Size = 0x4000;
453 req.AccessSpeed = ray_mem_speed;
454 CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &local->rmem_handle));
455 mem.CardOffset = 0x8000; mem.Page = 0;
456 CS_CHECK(MapMemPage, pcmcia_map_mem_page(local->rmem_handle, &mem));
457 local->rmem = ioremap(req.Base,req.Size);
458
459 /*** Set up window for attribute memory ***********************************/
460 req.Attributes = WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
461 req.Base = 0;
462 req.Size = 0x1000;
463 req.AccessSpeed = ray_mem_speed;
464 CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &local->amem_handle));
465 mem.CardOffset = 0x0000; mem.Page = 0;
466 CS_CHECK(MapMemPage, pcmcia_map_mem_page(local->amem_handle, &mem));
467 local->amem = ioremap(req.Base,req.Size);
468
469 DEBUG(3,"ray_config sram=%p\n",local->sram);
470 DEBUG(3,"ray_config rmem=%p\n",local->rmem);
471 DEBUG(3,"ray_config amem=%p\n",local->amem);
472 if (ray_init(dev) < 0) {
473 ray_release(link);
474 return -ENODEV;
475 }
476
477 SET_NETDEV_DEV(dev, &handle_to_dev(link));
478 i = register_netdev(dev);
479 if (i != 0) {
480 printk("ray_config register_netdev() failed\n");
481 ray_release(link);
482 return i;
483 }
484
485 strcpy(local->node.dev_name, dev->name);
486 link->dev_node = &local->node;
487
488 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %s\n",
489 dev->name, dev->irq, print_mac(mac, dev->dev_addr));
490
491 return 0;
492
493 cs_failed:
494 cs_error(link, last_fn, last_ret);
495
496 ray_release(link);
497 return -ENODEV;
498 } /* ray_config */
499
500 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
501 {
502 return dev->sram + CCS_BASE;
503 }
504
505 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
506 {
507 /*
508 * This looks nonsensical, since there is a separate
509 * RCS_BASE. But the difference between a "struct rcs"
510 * and a "struct ccs" ends up being in the _index_ off
511 * the base, so the base pointer is the same for both
512 * ccs/rcs.
513 */
514 return dev->sram + CCS_BASE;
515 }
516
517 /*===========================================================================*/
518 static int ray_init(struct net_device *dev)
519 {
520 int i;
521 UCHAR *p;
522 struct ccs __iomem *pccs;
523 ray_dev_t *local = netdev_priv(dev);
524 struct pcmcia_device *link = local->finder;
525 DEBUG(1, "ray_init(0x%p)\n", dev);
526 if (!(pcmcia_dev_present(link))) {
527 DEBUG(0,"ray_init - device not present\n");
528 return -1;
529 }
530
531 local->net_type = net_type;
532 local->sta_type = TYPE_STA;
533
534 /* Copy the startup results to local memory */
535 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,\
536 sizeof(struct startup_res_6));
537
538 /* Check Power up test status and get mac address from card */
539 if (local->startup_res.startup_word != 0x80) {
540 printk(KERN_INFO "ray_init ERROR card status = %2x\n",
541 local->startup_res.startup_word);
542 local->card_status = CARD_INIT_ERROR;
543 return -1;
544 }
545
546 local->fw_ver = local->startup_res.firmware_version[0];
547 local->fw_bld = local->startup_res.firmware_version[1];
548 local->fw_var = local->startup_res.firmware_version[2];
549 DEBUG(1,"ray_init firmware version %d.%d \n",local->fw_ver, local->fw_bld);
550
551 local->tib_length = 0x20;
552 if ((local->fw_ver == 5) && (local->fw_bld >= 30))
553 local->tib_length = local->startup_res.tib_length;
554 DEBUG(2,"ray_init tib_length = 0x%02x\n", local->tib_length);
555 /* Initialize CCS's to buffer free state */
556 pccs = ccs_base(local);
557 for (i=0; i<NUMBER_OF_CCS; i++) {
558 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
559 }
560 init_startup_params(local);
561
562 /* copy mac address to startup parameters */
563 if (parse_addr(phy_addr, local->sparm.b4.a_mac_addr))
564 {
565 p = local->sparm.b4.a_mac_addr;
566 }
567 else
568 {
569 memcpy(&local->sparm.b4.a_mac_addr,
570 &local->startup_res.station_addr, ADDRLEN);
571 p = local->sparm.b4.a_mac_addr;
572 }
573
574 clear_interrupt(local); /* Clear any interrupt from the card */
575 local->card_status = CARD_AWAITING_PARAM;
576 DEBUG(2,"ray_init ending\n");
577 return 0;
578 } /* ray_init */
579 /*===========================================================================*/
580 /* Download startup parameters to the card and command it to read them */
581 static int dl_startup_params(struct net_device *dev)
582 {
583 int ccsindex;
584 ray_dev_t *local = netdev_priv(dev);
585 struct ccs __iomem *pccs;
586 struct pcmcia_device *link = local->finder;
587
588 DEBUG(1,"dl_startup_params entered\n");
589 if (!(pcmcia_dev_present(link))) {
590 DEBUG(2,"ray_cs dl_startup_params - device not present\n");
591 return -1;
592 }
593
594 /* Copy parameters to host to ECF area */
595 if (local->fw_ver == 0x55)
596 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
597 sizeof(struct b4_startup_params));
598 else
599 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
600 sizeof(struct b5_startup_params));
601
602
603 /* Fill in the CCS fields for the ECF */
604 if ((ccsindex = get_free_ccs(local)) < 0) return -1;
605 local->dl_param_ccs = ccsindex;
606 pccs = ccs_base(local) + ccsindex;
607 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
608 DEBUG(2,"dl_startup_params start ccsindex = %d\n", local->dl_param_ccs);
609 /* Interrupt the firmware to process the command */
610 if (interrupt_ecf(local, ccsindex)) {
611 printk(KERN_INFO "ray dl_startup_params failed - "
612 "ECF not ready for intr\n");
613 local->card_status = CARD_DL_PARAM_ERROR;
614 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
615 return -2;
616 }
617 local->card_status = CARD_DL_PARAM;
618 /* Start kernel timer to wait for dl startup to complete. */
619 local->timer.expires = jiffies + HZ/2;
620 local->timer.data = (long)local;
621 local->timer.function = &verify_dl_startup;
622 add_timer(&local->timer);
623 DEBUG(2,"ray_cs dl_startup_params started timer for verify_dl_startup\n");
624 return 0;
625 } /* dl_startup_params */
626 /*===========================================================================*/
627 static void init_startup_params(ray_dev_t *local)
628 {
629 int i;
630
631 if (country > JAPAN_TEST) country = USA;
632 else
633 if (country < USA) country = USA;
634 /* structure for hop time and beacon period is defined here using
635 * New 802.11D6.1 format. Card firmware is still using old format
636 * until version 6.
637 * Before After
638 * a_hop_time ms byte a_hop_time ms byte
639 * a_hop_time 2s byte a_hop_time ls byte
640 * a_hop_time ls byte a_beacon_period ms byte
641 * a_beacon_period a_beacon_period ls byte
642 *
643 * a_hop_time = uS a_hop_time = KuS
644 * a_beacon_period = hops a_beacon_period = KuS
645 */ /* 64ms = 010000 */
646 if (local->fw_ver == 0x55) {
647 memcpy((UCHAR *)&local->sparm.b4, b4_default_startup_parms,
648 sizeof(struct b4_startup_params));
649 /* Translate sane kus input values to old build 4/5 format */
650 /* i = hop time in uS truncated to 3 bytes */
651 i = (hop_dwell * 1024) & 0xffffff;
652 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
653 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
654 local->sparm.b4.a_beacon_period[0] = 0;
655 local->sparm.b4.a_beacon_period[1] =
656 ((beacon_period/hop_dwell) - 1) & 0xff;
657 local->sparm.b4.a_curr_country_code = country;
658 local->sparm.b4.a_hop_pattern_length =
659 hop_pattern_length[(int)country] - 1;
660 if (bc)
661 {
662 local->sparm.b4.a_ack_timeout = 0x50;
663 local->sparm.b4.a_sifs = 0x3f;
664 }
665 }
666 else { /* Version 5 uses real kus values */
667 memcpy((UCHAR *)&local->sparm.b5, b5_default_startup_parms,
668 sizeof(struct b5_startup_params));
669
670 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
671 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
672 local->sparm.b5.a_beacon_period[0] = (beacon_period >> 8) & 0xff;
673 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
674 if (psm)
675 local->sparm.b5.a_power_mgt_state = 1;
676 local->sparm.b5.a_curr_country_code = country;
677 local->sparm.b5.a_hop_pattern_length =
678 hop_pattern_length[(int)country];
679 }
680
681 local->sparm.b4.a_network_type = net_type & 0x01;
682 local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
683
684 if (essid != NULL)
685 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
686 } /* init_startup_params */
687 /*===========================================================================*/
688 static void verify_dl_startup(u_long data)
689 {
690 ray_dev_t *local = (ray_dev_t *)data;
691 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
692 UCHAR status;
693 struct pcmcia_device *link = local->finder;
694
695 if (!(pcmcia_dev_present(link))) {
696 DEBUG(2,"ray_cs verify_dl_startup - device not present\n");
697 return;
698 }
699 #ifdef PCMCIA_DEBUG
700 if (pc_debug > 2) {
701 int i;
702 printk(KERN_DEBUG "verify_dl_startup parameters sent via ccs %d:\n",
703 local->dl_param_ccs);
704 for (i=0; i<sizeof(struct b5_startup_params); i++) {
705 printk(" %2x", (unsigned int) readb(local->sram + HOST_TO_ECF_BASE + i));
706 }
707 printk("\n");
708 }
709 #endif
710
711 status = readb(&pccs->buffer_status);
712 if (status!= CCS_BUFFER_FREE)
713 {
714 printk(KERN_INFO "Download startup params failed. Status = %d\n",
715 status);
716 local->card_status = CARD_DL_PARAM_ERROR;
717 return;
718 }
719 if (local->sparm.b4.a_network_type == ADHOC)
720 start_net((u_long)local);
721 else
722 join_net((u_long)local);
723
724 return;
725 } /* end verify_dl_startup */
726 /*===========================================================================*/
727 /* Command card to start a network */
728 static void start_net(u_long data)
729 {
730 ray_dev_t *local = (ray_dev_t *)data;
731 struct ccs __iomem *pccs;
732 int ccsindex;
733 struct pcmcia_device *link = local->finder;
734 if (!(pcmcia_dev_present(link))) {
735 DEBUG(2,"ray_cs start_net - device not present\n");
736 return;
737 }
738 /* Fill in the CCS fields for the ECF */
739 if ((ccsindex = get_free_ccs(local)) < 0) return;
740 pccs = ccs_base(local) + ccsindex;
741 writeb(CCS_START_NETWORK, &pccs->cmd);
742 writeb(0, &pccs->var.start_network.update_param);
743 /* Interrupt the firmware to process the command */
744 if (interrupt_ecf(local, ccsindex)) {
745 DEBUG(1,"ray start net failed - card not ready for intr\n");
746 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
747 return;
748 }
749 local->card_status = CARD_DOING_ACQ;
750 return;
751 } /* end start_net */
752 /*===========================================================================*/
753 /* Command card to join a network */
754 static void join_net(u_long data)
755 {
756 ray_dev_t *local = (ray_dev_t *)data;
757
758 struct ccs __iomem *pccs;
759 int ccsindex;
760 struct pcmcia_device *link = local->finder;
761
762 if (!(pcmcia_dev_present(link))) {
763 DEBUG(2,"ray_cs join_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) return;
768 pccs = ccs_base(local) + ccsindex;
769 writeb(CCS_JOIN_NETWORK, &pccs->cmd);
770 writeb(0, &pccs->var.join_network.update_param);
771 writeb(0, &pccs->var.join_network.net_initiated);
772 /* Interrupt the firmware to process the command */
773 if (interrupt_ecf(local, ccsindex)) {
774 DEBUG(1,"ray join 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 }
781 /*============================================================================
782 After a card is removed, ray_release() will unregister the net
783 device, and release the PCMCIA configuration. If the device is
784 still open, this will be postponed until it is closed.
785 =============================================================================*/
786 static void ray_release(struct pcmcia_device *link)
787 {
788 struct net_device *dev = link->priv;
789 ray_dev_t *local = netdev_priv(dev);
790 int i;
791
792 DEBUG(1, "ray_release(0x%p)\n", link);
793
794 del_timer(&local->timer);
795
796 iounmap(local->sram);
797 iounmap(local->rmem);
798 iounmap(local->amem);
799 /* Do bother checking to see if these succeed or not */
800 i = pcmcia_release_window(local->amem_handle);
801 if ( i != CS_SUCCESS ) DEBUG(0,"ReleaseWindow(local->amem) ret = %x\n",i);
802 i = pcmcia_release_window(local->rmem_handle);
803 if ( i != CS_SUCCESS ) DEBUG(0,"ReleaseWindow(local->rmem) ret = %x\n",i);
804 pcmcia_disable_device(link);
805
806 DEBUG(2,"ray_release ending\n");
807 }
808
809 static int ray_suspend(struct pcmcia_device *link)
810 {
811 struct net_device *dev = link->priv;
812
813 if (link->open)
814 netif_device_detach(dev);
815
816 return 0;
817 }
818
819 static int ray_resume(struct pcmcia_device *link)
820 {
821 struct net_device *dev = link->priv;
822
823 if (link->open) {
824 ray_reset(dev);
825 netif_device_attach(dev);
826 }
827
828 return 0;
829 }
830
831 /*===========================================================================*/
832 int ray_dev_init(struct net_device *dev)
833 {
834 #ifdef RAY_IMMEDIATE_INIT
835 int i;
836 #endif /* RAY_IMMEDIATE_INIT */
837 ray_dev_t *local = netdev_priv(dev);
838 struct pcmcia_device *link = local->finder;
839
840 DEBUG(1,"ray_dev_init(dev=%p)\n",dev);
841 if (!(pcmcia_dev_present(link))) {
842 DEBUG(2,"ray_dev_init - device not present\n");
843 return -1;
844 }
845 #ifdef RAY_IMMEDIATE_INIT
846 /* Download startup parameters */
847 if ( (i = dl_startup_params(dev)) < 0)
848 {
849 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
850 "returns 0x%x\n",i);
851 return -1;
852 }
853 #else /* RAY_IMMEDIATE_INIT */
854 /* Postpone the card init so that we can still configure the card,
855 * for example using the Wireless Extensions. The init will happen
856 * in ray_open() - Jean II */
857 DEBUG(1,"ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
858 local->card_status);
859 #endif /* RAY_IMMEDIATE_INIT */
860
861 /* copy mac and broadcast addresses to linux device */
862 memcpy(&dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
863 memset(dev->broadcast, 0xff, ETH_ALEN);
864
865 DEBUG(2,"ray_dev_init ending\n");
866 return 0;
867 }
868 /*===========================================================================*/
869 static int ray_dev_config(struct net_device *dev, struct ifmap *map)
870 {
871 ray_dev_t *local = netdev_priv(dev);
872 struct pcmcia_device *link = local->finder;
873 /* Dummy routine to satisfy device structure */
874 DEBUG(1,"ray_dev_config(dev=%p,ifmap=%p)\n",dev,map);
875 if (!(pcmcia_dev_present(link))) {
876 DEBUG(2,"ray_dev_config - device not present\n");
877 return -1;
878 }
879
880 return 0;
881 }
882 /*===========================================================================*/
883 static int ray_dev_start_xmit(struct sk_buff *skb, struct net_device *dev)
884 {
885 ray_dev_t *local = netdev_priv(dev);
886 struct pcmcia_device *link = local->finder;
887 short length = skb->len;
888
889 if (!(pcmcia_dev_present(link))) {
890 DEBUG(2,"ray_dev_start_xmit - device not present\n");
891 return -1;
892 }
893 DEBUG(3,"ray_dev_start_xmit(skb=%p, dev=%p)\n",skb,dev);
894 if (local->authentication_state == NEED_TO_AUTH) {
895 DEBUG(0,"ray_cs Sending authentication request.\n");
896 if (!build_auth_frame (local, local->auth_id, OPEN_AUTH_REQUEST)) {
897 local->authentication_state = AUTHENTICATED;
898 netif_stop_queue(dev);
899 return 1;
900 }
901 }
902
903 if (length < ETH_ZLEN)
904 {
905 if (skb_padto(skb, ETH_ZLEN))
906 return 0;
907 length = ETH_ZLEN;
908 }
909 switch (ray_hw_xmit( skb->data, length, dev, DATA_TYPE)) {
910 case XMIT_NO_CCS:
911 case XMIT_NEED_AUTH:
912 netif_stop_queue(dev);
913 return 1;
914 case XMIT_NO_INTR:
915 case XMIT_MSG_BAD:
916 case XMIT_OK:
917 default:
918 dev->trans_start = jiffies;
919 dev_kfree_skb(skb);
920 return 0;
921 }
922 return 0;
923 } /* ray_dev_start_xmit */
924 /*===========================================================================*/
925 static int ray_hw_xmit(unsigned char* data, int len, struct net_device* dev,
926 UCHAR msg_type)
927 {
928 ray_dev_t *local = netdev_priv(dev);
929 struct ccs __iomem *pccs;
930 int ccsindex;
931 int offset;
932 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */
933 short int addr; /* Address of xmit buffer in card space */
934
935 DEBUG(3,"ray_hw_xmit(data=%p, len=%d, dev=%p)\n",data,len,dev);
936 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE)
937 {
938 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",len);
939 return XMIT_MSG_BAD;
940 }
941 switch (ccsindex = get_free_tx_ccs(local)) {
942 case ECCSBUSY:
943 DEBUG(2,"ray_hw_xmit tx_ccs table busy\n");
944 case ECCSFULL:
945 DEBUG(2,"ray_hw_xmit No free tx ccs\n");
946 case ECARDGONE:
947 netif_stop_queue(dev);
948 return XMIT_NO_CCS;
949 default:
950 break;
951 }
952 addr = TX_BUF_BASE + (ccsindex << 11);
953
954 if (msg_type == DATA_TYPE) {
955 local->stats.tx_bytes += len;
956 local->stats.tx_packets++;
957 }
958
959 ptx = local->sram + addr;
960
961 ray_build_header(local, ptx, msg_type, data);
962 if (translate) {
963 offset = translate_frame(local, ptx, data, len);
964 }
965 else { /* Encapsulate frame */
966 /* TBD TIB length will move address of ptx->var */
967 memcpy_toio(&ptx->var, data, len);
968 offset = 0;
969 }
970
971 /* fill in the CCS */
972 pccs = ccs_base(local) + ccsindex;
973 len += TX_HEADER_LENGTH + offset;
974 writeb(CCS_TX_REQUEST, &pccs->cmd);
975 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
976 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
977 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
978 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
979 /* TBD still need psm_cam? */
980 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
981 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
982 writeb(0, &pccs->var.tx_request.antenna);
983 DEBUG(3,"ray_hw_xmit default_tx_rate = 0x%x\n",\
984 local->net_default_tx_rate);
985
986 /* Interrupt the firmware to process the command */
987 if (interrupt_ecf(local, ccsindex)) {
988 DEBUG(2,"ray_hw_xmit failed - ECF not ready for intr\n");
989 /* TBD very inefficient to copy packet to buffer, and then not
990 send it, but the alternative is to queue the messages and that
991 won't be done for a while. Maybe set tbusy until a CCS is free?
992 */
993 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
994 return XMIT_NO_INTR;
995 }
996 return XMIT_OK;
997 } /* end ray_hw_xmit */
998 /*===========================================================================*/
999 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx, unsigned char *data,
1000 int len)
1001 {
1002 __be16 proto = ((struct ethhdr *)data)->h_proto;
1003 if (ntohs(proto) >= 1536) { /* DIX II ethernet frame */
1004 DEBUG(3,"ray_cs translate_frame DIX II\n");
1005 /* Copy LLC header to card buffer */
1006 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
1007 memcpy_toio( ((void __iomem *)&ptx->var) + sizeof(eth2_llc), (UCHAR *)&proto, 2);
1008 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
1009 /* This is the selective translation table, only 2 entries */
1010 writeb(0xf8, &((struct snaphdr_t __iomem *)ptx->var)->org[3]);
1011 }
1012 /* Copy body of ethernet packet without ethernet header */
1013 memcpy_toio((void __iomem *)&ptx->var + sizeof(struct snaphdr_t), \
1014 data + ETH_HLEN, len - ETH_HLEN);
1015 return (int) sizeof(struct snaphdr_t) - ETH_HLEN;
1016 }
1017 else { /* already 802 type, and proto is length */
1018 DEBUG(3,"ray_cs translate_frame 802\n");
1019 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
1020 DEBUG(3,"ray_cs translate_frame evil IPX\n");
1021 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
1022 return 0 - ETH_HLEN;
1023 }
1024 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
1025 return 0 - ETH_HLEN;
1026 }
1027 /* TBD do other frame types */
1028 } /* end translate_frame */
1029 /*===========================================================================*/
1030 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx, UCHAR msg_type,
1031 unsigned char *data)
1032 {
1033 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
1034 /*** IEEE 802.11 Address field assignments *************
1035 TODS FROMDS addr_1 addr_2 addr_3 addr_4
1036 Adhoc 0 0 dest src (terminal) BSSID N/A
1037 AP to Terminal 0 1 dest AP(BSSID) source N/A
1038 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A
1039 AP to AP 1 1 dest AP src AP dest source
1040 *******************************************************/
1041 if (local->net_type == ADHOC) {
1042 writeb(0, &ptx->mac.frame_ctl_2);
1043 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest, 2 * ADDRLEN);
1044 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
1045 }
1046 else /* infrastructure */
1047 {
1048 if (local->sparm.b4.a_acting_as_ap_status)
1049 {
1050 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
1051 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest, ADDRLEN);
1052 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
1053 memcpy_toio(ptx->mac.addr_3, ((struct ethhdr *)data)->h_source, ADDRLEN);
1054 }
1055 else /* Terminal */
1056 {
1057 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
1058 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1059 memcpy_toio(ptx->mac.addr_2, ((struct ethhdr *)data)->h_source, ADDRLEN);
1060 memcpy_toio(ptx->mac.addr_3, ((struct ethhdr *)data)->h_dest, ADDRLEN);
1061 }
1062 }
1063 } /* end encapsulate_frame */
1064
1065
1066 /*===========================================================================*/
1067
1068 static void netdev_get_drvinfo(struct net_device *dev,
1069 struct ethtool_drvinfo *info)
1070 {
1071 strcpy(info->driver, "ray_cs");
1072 }
1073
1074 static const struct ethtool_ops netdev_ethtool_ops = {
1075 .get_drvinfo = netdev_get_drvinfo,
1076 };
1077
1078 /*====================================================================*/
1079
1080 /*------------------------------------------------------------------*/
1081 /*
1082 * Wireless Handler : get protocol name
1083 */
1084 static int ray_get_name(struct net_device *dev,
1085 struct iw_request_info *info,
1086 char *cwrq,
1087 char *extra)
1088 {
1089 strcpy(cwrq, "IEEE 802.11-FH");
1090 return 0;
1091 }
1092
1093 /*------------------------------------------------------------------*/
1094 /*
1095 * Wireless Handler : set frequency
1096 */
1097 static int ray_set_freq(struct net_device *dev,
1098 struct iw_request_info *info,
1099 struct iw_freq *fwrq,
1100 char *extra)
1101 {
1102 ray_dev_t *local = netdev_priv(dev);
1103 int err = -EINPROGRESS; /* Call commit handler */
1104
1105 /* Reject if card is already initialised */
1106 if(local->card_status != CARD_AWAITING_PARAM)
1107 return -EBUSY;
1108
1109 /* Setting by channel number */
1110 if ((fwrq->m > USA_HOP_MOD) || (fwrq->e > 0))
1111 err = -EOPNOTSUPP;
1112 else
1113 local->sparm.b5.a_hop_pattern = fwrq->m;
1114
1115 return err;
1116 }
1117
1118 /*------------------------------------------------------------------*/
1119 /*
1120 * Wireless Handler : get frequency
1121 */
1122 static int ray_get_freq(struct net_device *dev,
1123 struct iw_request_info *info,
1124 struct iw_freq *fwrq,
1125 char *extra)
1126 {
1127 ray_dev_t *local = netdev_priv(dev);
1128
1129 fwrq->m = local->sparm.b5.a_hop_pattern;
1130 fwrq->e = 0;
1131 return 0;
1132 }
1133
1134 /*------------------------------------------------------------------*/
1135 /*
1136 * Wireless Handler : set ESSID
1137 */
1138 static int ray_set_essid(struct net_device *dev,
1139 struct iw_request_info *info,
1140 struct iw_point *dwrq,
1141 char *extra)
1142 {
1143 ray_dev_t *local = netdev_priv(dev);
1144
1145 /* Reject if card is already initialised */
1146 if(local->card_status != CARD_AWAITING_PARAM)
1147 return -EBUSY;
1148
1149 /* Check if we asked for `any' */
1150 if(dwrq->flags == 0) {
1151 /* Corey : can you do that ? */
1152 return -EOPNOTSUPP;
1153 } else {
1154 /* Check the size of the string */
1155 if(dwrq->length > IW_ESSID_MAX_SIZE) {
1156 return -E2BIG;
1157 }
1158
1159 /* Set the ESSID in the card */
1160 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1161 memcpy(local->sparm.b5.a_current_ess_id, extra, dwrq->length);
1162 }
1163
1164 return -EINPROGRESS; /* Call commit handler */
1165 }
1166
1167 /*------------------------------------------------------------------*/
1168 /*
1169 * Wireless Handler : get ESSID
1170 */
1171 static int ray_get_essid(struct net_device *dev,
1172 struct iw_request_info *info,
1173 struct iw_point *dwrq,
1174 char *extra)
1175 {
1176 ray_dev_t *local = netdev_priv(dev);
1177
1178 /* Get the essid that was set */
1179 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1180
1181 /* Push it out ! */
1182 dwrq->length = strlen(extra);
1183 dwrq->flags = 1; /* active */
1184
1185 return 0;
1186 }
1187
1188 /*------------------------------------------------------------------*/
1189 /*
1190 * Wireless Handler : get AP address
1191 */
1192 static int ray_get_wap(struct net_device *dev,
1193 struct iw_request_info *info,
1194 struct sockaddr *awrq,
1195 char *extra)
1196 {
1197 ray_dev_t *local = netdev_priv(dev);
1198
1199 memcpy(awrq->sa_data, local->bss_id, ETH_ALEN);
1200 awrq->sa_family = ARPHRD_ETHER;
1201
1202 return 0;
1203 }
1204
1205 /*------------------------------------------------------------------*/
1206 /*
1207 * Wireless Handler : set Bit-Rate
1208 */
1209 static int ray_set_rate(struct net_device *dev,
1210 struct iw_request_info *info,
1211 struct iw_param *vwrq,
1212 char *extra)
1213 {
1214 ray_dev_t *local = netdev_priv(dev);
1215
1216 /* Reject if card is already initialised */
1217 if(local->card_status != CARD_AWAITING_PARAM)
1218 return -EBUSY;
1219
1220 /* Check if rate is in range */
1221 if((vwrq->value != 1000000) && (vwrq->value != 2000000))
1222 return -EINVAL;
1223
1224 /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1225 if((local->fw_ver == 0x55) && /* Please check */
1226 (vwrq->value == 2000000))
1227 local->net_default_tx_rate = 3;
1228 else
1229 local->net_default_tx_rate = vwrq->value/500000;
1230
1231 return 0;
1232 }
1233
1234 /*------------------------------------------------------------------*/
1235 /*
1236 * Wireless Handler : get Bit-Rate
1237 */
1238 static int ray_get_rate(struct net_device *dev,
1239 struct iw_request_info *info,
1240 struct iw_param *vwrq,
1241 char *extra)
1242 {
1243 ray_dev_t *local = netdev_priv(dev);
1244
1245 if(local->net_default_tx_rate == 3)
1246 vwrq->value = 2000000; /* Hum... */
1247 else
1248 vwrq->value = local->net_default_tx_rate * 500000;
1249 vwrq->fixed = 0; /* We are in auto mode */
1250
1251 return 0;
1252 }
1253
1254 /*------------------------------------------------------------------*/
1255 /*
1256 * Wireless Handler : set RTS threshold
1257 */
1258 static int ray_set_rts(struct net_device *dev,
1259 struct iw_request_info *info,
1260 struct iw_param *vwrq,
1261 char *extra)
1262 {
1263 ray_dev_t *local = netdev_priv(dev);
1264 int rthr = vwrq->value;
1265
1266 /* Reject if card is already initialised */
1267 if(local->card_status != CARD_AWAITING_PARAM)
1268 return -EBUSY;
1269
1270 /* if(wrq->u.rts.fixed == 0) we should complain */
1271 if(vwrq->disabled)
1272 rthr = 32767;
1273 else {
1274 if((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */
1275 return -EINVAL;
1276 }
1277 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1278 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1279
1280 return -EINPROGRESS; /* Call commit handler */
1281 }
1282
1283
1284 /*------------------------------------------------------------------*/
1285 /*
1286 * Wireless Handler : get RTS threshold
1287 */
1288 static int ray_get_rts(struct net_device *dev,
1289 struct iw_request_info *info,
1290 struct iw_param *vwrq,
1291 char *extra)
1292 {
1293 ray_dev_t *local = netdev_priv(dev);
1294
1295 vwrq->value = (local->sparm.b5.a_rts_threshold[0] << 8)
1296 + local->sparm.b5.a_rts_threshold[1];
1297 vwrq->disabled = (vwrq->value == 32767);
1298 vwrq->fixed = 1;
1299
1300 return 0;
1301 }
1302
1303 /*------------------------------------------------------------------*/
1304 /*
1305 * Wireless Handler : set Fragmentation threshold
1306 */
1307 static int ray_set_frag(struct net_device *dev,
1308 struct iw_request_info *info,
1309 struct iw_param *vwrq,
1310 char *extra)
1311 {
1312 ray_dev_t *local = netdev_priv(dev);
1313 int fthr = vwrq->value;
1314
1315 /* Reject if card is already initialised */
1316 if(local->card_status != CARD_AWAITING_PARAM)
1317 return -EBUSY;
1318
1319 /* if(wrq->u.frag.fixed == 0) should complain */
1320 if(vwrq->disabled)
1321 fthr = 32767;
1322 else {
1323 if((fthr < 256) || (fthr > 2347)) /* To check out ! */
1324 return -EINVAL;
1325 }
1326 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1327 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1328
1329 return -EINPROGRESS; /* Call commit handler */
1330 }
1331
1332 /*------------------------------------------------------------------*/
1333 /*
1334 * Wireless Handler : get Fragmentation threshold
1335 */
1336 static int ray_get_frag(struct net_device *dev,
1337 struct iw_request_info *info,
1338 struct iw_param *vwrq,
1339 char *extra)
1340 {
1341 ray_dev_t *local = netdev_priv(dev);
1342
1343 vwrq->value = (local->sparm.b5.a_frag_threshold[0] << 8)
1344 + local->sparm.b5.a_frag_threshold[1];
1345 vwrq->disabled = (vwrq->value == 32767);
1346 vwrq->fixed = 1;
1347
1348 return 0;
1349 }
1350
1351 /*------------------------------------------------------------------*/
1352 /*
1353 * Wireless Handler : set Mode of Operation
1354 */
1355 static int ray_set_mode(struct net_device *dev,
1356 struct iw_request_info *info,
1357 __u32 *uwrq,
1358 char *extra)
1359 {
1360 ray_dev_t *local = netdev_priv(dev);
1361 int err = -EINPROGRESS; /* Call commit handler */
1362 char card_mode = 1;
1363
1364 /* Reject if card is already initialised */
1365 if(local->card_status != CARD_AWAITING_PARAM)
1366 return -EBUSY;
1367
1368 switch (*uwrq)
1369 {
1370 case IW_MODE_ADHOC:
1371 card_mode = 0;
1372 // Fall through
1373 case IW_MODE_INFRA:
1374 local->sparm.b5.a_network_type = card_mode;
1375 break;
1376 default:
1377 err = -EINVAL;
1378 }
1379
1380 return err;
1381 }
1382
1383 /*------------------------------------------------------------------*/
1384 /*
1385 * Wireless Handler : get Mode of Operation
1386 */
1387 static int ray_get_mode(struct net_device *dev,
1388 struct iw_request_info *info,
1389 __u32 *uwrq,
1390 char *extra)
1391 {
1392 ray_dev_t *local = netdev_priv(dev);
1393
1394 if(local->sparm.b5.a_network_type)
1395 *uwrq = IW_MODE_INFRA;
1396 else
1397 *uwrq = IW_MODE_ADHOC;
1398
1399 return 0;
1400 }
1401
1402 /*------------------------------------------------------------------*/
1403 /*
1404 * Wireless Handler : get range info
1405 */
1406 static int ray_get_range(struct net_device *dev,
1407 struct iw_request_info *info,
1408 struct iw_point *dwrq,
1409 char *extra)
1410 {
1411 struct iw_range *range = (struct iw_range *) extra;
1412
1413 memset((char *) range, 0, sizeof(struct iw_range));
1414
1415 /* Set the length (very important for backward compatibility) */
1416 dwrq->length = sizeof(struct iw_range);
1417
1418 /* Set the Wireless Extension versions */
1419 range->we_version_compiled = WIRELESS_EXT;
1420 range->we_version_source = 9;
1421
1422 /* Set information in the range struct */
1423 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */
1424 range->num_channels = hop_pattern_length[(int)country];
1425 range->num_frequency = 0;
1426 range->max_qual.qual = 0;
1427 range->max_qual.level = 255; /* What's the correct value ? */
1428 range->max_qual.noise = 255; /* Idem */
1429 range->num_bitrates = 2;
1430 range->bitrate[0] = 1000000; /* 1 Mb/s */
1431 range->bitrate[1] = 2000000; /* 2 Mb/s */
1432 return 0;
1433 }
1434
1435 /*------------------------------------------------------------------*/
1436 /*
1437 * Wireless Private Handler : set framing mode
1438 */
1439 static int ray_set_framing(struct net_device *dev,
1440 struct iw_request_info *info,
1441 union iwreq_data *wrqu,
1442 char *extra)
1443 {
1444 translate = *(extra); /* Set framing mode */
1445
1446 return 0;
1447 }
1448
1449 /*------------------------------------------------------------------*/
1450 /*
1451 * Wireless Private Handler : get framing mode
1452 */
1453 static int ray_get_framing(struct net_device *dev,
1454 struct iw_request_info *info,
1455 union iwreq_data *wrqu,
1456 char *extra)
1457 {
1458 *(extra) = translate;
1459
1460 return 0;
1461 }
1462
1463 /*------------------------------------------------------------------*/
1464 /*
1465 * Wireless Private Handler : get country
1466 */
1467 static int ray_get_country(struct net_device *dev,
1468 struct iw_request_info *info,
1469 union iwreq_data *wrqu,
1470 char *extra)
1471 {
1472 *(extra) = country;
1473
1474 return 0;
1475 }
1476
1477 /*------------------------------------------------------------------*/
1478 /*
1479 * Commit handler : called after a bunch of SET operations
1480 */
1481 static int ray_commit(struct net_device *dev,
1482 struct iw_request_info *info, /* NULL */
1483 void *zwrq, /* NULL */
1484 char *extra) /* NULL */
1485 {
1486 return 0;
1487 }
1488
1489 /*------------------------------------------------------------------*/
1490 /*
1491 * Stats handler : return Wireless Stats
1492 */
1493 static iw_stats * ray_get_wireless_stats(struct net_device * dev)
1494 {
1495 ray_dev_t * local = netdev_priv(dev);
1496 struct pcmcia_device *link = local->finder;
1497 struct status __iomem *p = local->sram + STATUS_BASE;
1498
1499 if(local == (ray_dev_t *) NULL)
1500 return (iw_stats *) NULL;
1501
1502 local->wstats.status = local->card_status;
1503 #ifdef WIRELESS_SPY
1504 if((local->spy_data.spy_number > 0) && (local->sparm.b5.a_network_type == 0))
1505 {
1506 /* Get it from the first node in spy list */
1507 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1508 local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1509 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1510 local->wstats.qual.updated = local->spy_data.spy_stat[0].updated;
1511 }
1512 #endif /* WIRELESS_SPY */
1513
1514 if(pcmcia_dev_present(link)) {
1515 local->wstats.qual.noise = readb(&p->rxnoise);
1516 local->wstats.qual.updated |= 4;
1517 }
1518
1519 return &local->wstats;
1520 } /* end ray_get_wireless_stats */
1521
1522 /*------------------------------------------------------------------*/
1523 /*
1524 * Structures to export the Wireless Handlers
1525 */
1526
1527 static const iw_handler ray_handler[] = {
1528 [SIOCSIWCOMMIT-SIOCIWFIRST] = (iw_handler) ray_commit,
1529 [SIOCGIWNAME -SIOCIWFIRST] = (iw_handler) ray_get_name,
1530 [SIOCSIWFREQ -SIOCIWFIRST] = (iw_handler) ray_set_freq,
1531 [SIOCGIWFREQ -SIOCIWFIRST] = (iw_handler) ray_get_freq,
1532 [SIOCSIWMODE -SIOCIWFIRST] = (iw_handler) ray_set_mode,
1533 [SIOCGIWMODE -SIOCIWFIRST] = (iw_handler) ray_get_mode,
1534 [SIOCGIWRANGE -SIOCIWFIRST] = (iw_handler) ray_get_range,
1535 #ifdef WIRELESS_SPY
1536 [SIOCSIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_set_spy,
1537 [SIOCGIWSPY -SIOCIWFIRST] = (iw_handler) iw_handler_get_spy,
1538 [SIOCSIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_set_thrspy,
1539 [SIOCGIWTHRSPY-SIOCIWFIRST] = (iw_handler) iw_handler_get_thrspy,
1540 #endif /* WIRELESS_SPY */
1541 [SIOCGIWAP -SIOCIWFIRST] = (iw_handler) ray_get_wap,
1542 [SIOCSIWESSID -SIOCIWFIRST] = (iw_handler) ray_set_essid,
1543 [SIOCGIWESSID -SIOCIWFIRST] = (iw_handler) ray_get_essid,
1544 [SIOCSIWRATE -SIOCIWFIRST] = (iw_handler) ray_set_rate,
1545 [SIOCGIWRATE -SIOCIWFIRST] = (iw_handler) ray_get_rate,
1546 [SIOCSIWRTS -SIOCIWFIRST] = (iw_handler) ray_set_rts,
1547 [SIOCGIWRTS -SIOCIWFIRST] = (iw_handler) ray_get_rts,
1548 [SIOCSIWFRAG -SIOCIWFIRST] = (iw_handler) ray_set_frag,
1549 [SIOCGIWFRAG -SIOCIWFIRST] = (iw_handler) ray_get_frag,
1550 };
1551
1552 #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */
1553 #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */
1554 #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */
1555
1556 static const iw_handler ray_private_handler[] = {
1557 [0] = (iw_handler) ray_set_framing,
1558 [1] = (iw_handler) ray_get_framing,
1559 [3] = (iw_handler) ray_get_country,
1560 };
1561
1562 static const struct iw_priv_args ray_private_args[] = {
1563 /* cmd, set_args, get_args, name */
1564 { SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, "set_framing" },
1565 { SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "get_framing" },
1566 { SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "get_country" },
1567 };
1568
1569 static const struct iw_handler_def ray_handler_def =
1570 {
1571 .num_standard = ARRAY_SIZE(ray_handler),
1572 .num_private = ARRAY_SIZE(ray_private_handler),
1573 .num_private_args = ARRAY_SIZE(ray_private_args),
1574 .standard = ray_handler,
1575 .private = ray_private_handler,
1576 .private_args = ray_private_args,
1577 .get_wireless_stats = ray_get_wireless_stats,
1578 };
1579
1580 /*===========================================================================*/
1581 static int ray_open(struct net_device *dev)
1582 {
1583 ray_dev_t *local = netdev_priv(dev);
1584 struct pcmcia_device *link;
1585 link = local->finder;
1586
1587 DEBUG(1, "ray_open('%s')\n", dev->name);
1588
1589 if (link->open == 0)
1590 local->num_multi = 0;
1591 link->open++;
1592
1593 /* If the card is not started, time to start it ! - Jean II */
1594 if(local->card_status == CARD_AWAITING_PARAM) {
1595 int i;
1596
1597 DEBUG(1,"ray_open: doing init now !\n");
1598
1599 /* Download startup parameters */
1600 if ( (i = dl_startup_params(dev)) < 0)
1601 {
1602 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
1603 "returns 0x%x\n",i);
1604 return -1;
1605 }
1606 }
1607
1608 if (sniffer) netif_stop_queue(dev);
1609 else netif_start_queue(dev);
1610
1611 DEBUG(2,"ray_open ending\n");
1612 return 0;
1613 } /* end ray_open */
1614 /*===========================================================================*/
1615 static int ray_dev_close(struct net_device *dev)
1616 {
1617 ray_dev_t *local = netdev_priv(dev);
1618 struct pcmcia_device *link;
1619 link = local->finder;
1620
1621 DEBUG(1, "ray_dev_close('%s')\n", dev->name);
1622
1623 link->open--;
1624 netif_stop_queue(dev);
1625
1626 /* In here, we should stop the hardware (stop card from beeing active)
1627 * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1628 * card is closed we can chage its configuration.
1629 * Probably also need a COR reset to get sane state - Jean II */
1630
1631 return 0;
1632 } /* end ray_dev_close */
1633 /*===========================================================================*/
1634 static void ray_reset(struct net_device *dev) {
1635 DEBUG(1,"ray_reset entered\n");
1636 return;
1637 }
1638 /*===========================================================================*/
1639 /* Cause a firmware interrupt if it is ready for one */
1640 /* Return nonzero if not ready */
1641 static int interrupt_ecf(ray_dev_t *local, int ccs)
1642 {
1643 int i = 50;
1644 struct pcmcia_device *link = local->finder;
1645
1646 if (!(pcmcia_dev_present(link))) {
1647 DEBUG(2,"ray_cs interrupt_ecf - device not present\n");
1648 return -1;
1649 }
1650 DEBUG(2,"interrupt_ecf(local=%p, ccs = 0x%x\n",local,ccs);
1651
1652 while ( i &&
1653 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) & ECF_INTR_SET))
1654 i--;
1655 if (i == 0) {
1656 DEBUG(2,"ray_cs interrupt_ecf card not ready for interrupt\n");
1657 return -1;
1658 }
1659 /* Fill the mailbox, then kick the card */
1660 writeb(ccs, local->sram + SCB_BASE);
1661 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1662 return 0;
1663 } /* interrupt_ecf */
1664 /*===========================================================================*/
1665 /* Get next free transmit CCS */
1666 /* Return - index of current tx ccs */
1667 static int get_free_tx_ccs(ray_dev_t *local)
1668 {
1669 int i;
1670 struct ccs __iomem *pccs = ccs_base(local);
1671 struct pcmcia_device *link = local->finder;
1672
1673 if (!(pcmcia_dev_present(link))) {
1674 DEBUG(2,"ray_cs get_free_tx_ccs - device not present\n");
1675 return ECARDGONE;
1676 }
1677
1678 if (test_and_set_bit(0,&local->tx_ccs_lock)) {
1679 DEBUG(1,"ray_cs tx_ccs_lock busy\n");
1680 return ECCSBUSY;
1681 }
1682
1683 for (i=0; i < NUMBER_OF_TX_CCS; i++) {
1684 if (readb(&(pccs+i)->buffer_status) == CCS_BUFFER_FREE) {
1685 writeb(CCS_BUFFER_BUSY, &(pccs+i)->buffer_status);
1686 writeb(CCS_END_LIST, &(pccs+i)->link);
1687 local->tx_ccs_lock = 0;
1688 return i;
1689 }
1690 }
1691 local->tx_ccs_lock = 0;
1692 DEBUG(2,"ray_cs ERROR no free tx CCS for raylink card\n");
1693 return ECCSFULL;
1694 } /* get_free_tx_ccs */
1695 /*===========================================================================*/
1696 /* Get next free CCS */
1697 /* Return - index of current ccs */
1698 static int get_free_ccs(ray_dev_t *local)
1699 {
1700 int i;
1701 struct ccs __iomem *pccs = ccs_base(local);
1702 struct pcmcia_device *link = local->finder;
1703
1704 if (!(pcmcia_dev_present(link))) {
1705 DEBUG(2,"ray_cs get_free_ccs - device not present\n");
1706 return ECARDGONE;
1707 }
1708 if (test_and_set_bit(0,&local->ccs_lock)) {
1709 DEBUG(1,"ray_cs ccs_lock busy\n");
1710 return ECCSBUSY;
1711 }
1712
1713 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1714 if (readb(&(pccs+i)->buffer_status) == CCS_BUFFER_FREE) {
1715 writeb(CCS_BUFFER_BUSY, &(pccs+i)->buffer_status);
1716 writeb(CCS_END_LIST, &(pccs+i)->link);
1717 local->ccs_lock = 0;
1718 return i;
1719 }
1720 }
1721 local->ccs_lock = 0;
1722 DEBUG(1,"ray_cs ERROR no free CCS for raylink card\n");
1723 return ECCSFULL;
1724 } /* get_free_ccs */
1725 /*===========================================================================*/
1726 static void authenticate_timeout(u_long data)
1727 {
1728 ray_dev_t *local = (ray_dev_t *)data;
1729 del_timer(&local->timer);
1730 printk(KERN_INFO "ray_cs Authentication with access point failed"
1731 " - timeout\n");
1732 join_net((u_long)local);
1733 }
1734 /*===========================================================================*/
1735 static int asc_to_int(char a)
1736 {
1737 if (a < '0') return -1;
1738 if (a <= '9') return (a - '0');
1739 if (a < 'A') return -1;
1740 if (a <= 'F') return (10 + a - 'A');
1741 if (a < 'a') return -1;
1742 if (a <= 'f') return (10 + a - 'a');
1743 return -1;
1744 }
1745 /*===========================================================================*/
1746 static int parse_addr(char *in_str, UCHAR *out)
1747 {
1748 int len;
1749 int i,j,k;
1750 int status;
1751
1752 if (in_str == NULL) return 0;
1753 if ((len = strlen(in_str)) < 2) return 0;
1754 memset(out, 0, ADDRLEN);
1755
1756 status = 1;
1757 j = len - 1;
1758 if (j > 12) j = 12;
1759 i = 5;
1760
1761 while (j > 0)
1762 {
1763 if ((k = asc_to_int(in_str[j--])) != -1) out[i] = k;
1764 else return 0;
1765
1766 if (j == 0) break;
1767 if ((k = asc_to_int(in_str[j--])) != -1) out[i] += k << 4;
1768 else return 0;
1769 if (!i--) break;
1770 }
1771 return status;
1772 }
1773 /*===========================================================================*/
1774 static struct net_device_stats *ray_get_stats(struct net_device *dev)
1775 {
1776 ray_dev_t *local = netdev_priv(dev);
1777 struct pcmcia_device *link = local->finder;
1778 struct status __iomem *p = local->sram + STATUS_BASE;
1779 if (!(pcmcia_dev_present(link))) {
1780 DEBUG(2,"ray_cs net_device_stats - device not present\n");
1781 return &local->stats;
1782 }
1783 if (readb(&p->mrx_overflow_for_host))
1784 {
1785 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1786 writeb(0,&p->mrx_overflow);
1787 writeb(0,&p->mrx_overflow_for_host);
1788 }
1789 if (readb(&p->mrx_checksum_error_for_host))
1790 {
1791 local->stats.rx_crc_errors += swab16(readw(&p->mrx_checksum_error));
1792 writeb(0,&p->mrx_checksum_error);
1793 writeb(0,&p->mrx_checksum_error_for_host);
1794 }
1795 if (readb(&p->rx_hec_error_for_host))
1796 {
1797 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1798 writeb(0,&p->rx_hec_error);
1799 writeb(0,&p->rx_hec_error_for_host);
1800 }
1801 return &local->stats;
1802 }
1803 /*===========================================================================*/
1804 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len)
1805 {
1806 ray_dev_t *local = netdev_priv(dev);
1807 struct pcmcia_device *link = local->finder;
1808 int ccsindex;
1809 int i;
1810 struct ccs __iomem *pccs;
1811
1812 if (!(pcmcia_dev_present(link))) {
1813 DEBUG(2,"ray_update_parm - device not present\n");
1814 return;
1815 }
1816
1817 if ((ccsindex = get_free_ccs(local)) < 0)
1818 {
1819 DEBUG(0,"ray_update_parm - No free ccs\n");
1820 return;
1821 }
1822 pccs = ccs_base(local) + ccsindex;
1823 writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1824 writeb(objid, &pccs->var.update_param.object_id);
1825 writeb(1, &pccs->var.update_param.number_objects);
1826 writeb(0, &pccs->var.update_param.failure_cause);
1827 for (i=0; i<len; i++) {
1828 writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1829 }
1830 /* Interrupt the firmware to process the command */
1831 if (interrupt_ecf(local, ccsindex)) {
1832 DEBUG(0,"ray_cs associate failed - ECF not ready for intr\n");
1833 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1834 }
1835 }
1836 /*===========================================================================*/
1837 static void ray_update_multi_list(struct net_device *dev, int all)
1838 {
1839 struct dev_mc_list *dmi, **dmip;
1840 int ccsindex;
1841 struct ccs __iomem *pccs;
1842 int i = 0;
1843 ray_dev_t *local = netdev_priv(dev);
1844 struct pcmcia_device *link = local->finder;
1845 void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1846
1847 if (!(pcmcia_dev_present(link))) {
1848 DEBUG(2,"ray_update_multi_list - device not present\n");
1849 return;
1850 }
1851 else
1852 DEBUG(2,"ray_update_multi_list(%p)\n",dev);
1853 if ((ccsindex = get_free_ccs(local)) < 0)
1854 {
1855 DEBUG(1,"ray_update_multi - No free ccs\n");
1856 return;
1857 }
1858 pccs = ccs_base(local) + ccsindex;
1859 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1860
1861 if (all) {
1862 writeb(0xff, &pccs->var);
1863 local->num_multi = 0xff;
1864 }
1865 else {
1866 /* Copy the kernel's list of MC addresses to card */
1867 for (dmip=&dev->mc_list; (dmi=*dmip)!=NULL; dmip=&dmi->next) {
1868 memcpy_toio(p, dmi->dmi_addr, ETH_ALEN);
1869 DEBUG(1,"ray_update_multi add addr %02x%02x%02x%02x%02x%02x\n",dmi->dmi_addr[0],dmi->dmi_addr[1],dmi->dmi_addr[2],dmi->dmi_addr[3],dmi->dmi_addr[4],dmi->dmi_addr[5]);
1870 p += ETH_ALEN;
1871 i++;
1872 }
1873 if (i > 256/ADDRLEN) i = 256/ADDRLEN;
1874 writeb((UCHAR)i, &pccs->var);
1875 DEBUG(1,"ray_cs update_multi %d addresses in list\n", i);
1876 /* Interrupt the firmware to process the command */
1877 local->num_multi = i;
1878 }
1879 if (interrupt_ecf(local, ccsindex)) {
1880 DEBUG(1,"ray_cs update_multi failed - ECF not ready for intr\n");
1881 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1882 }
1883 } /* end ray_update_multi_list */
1884 /*===========================================================================*/
1885 static void set_multicast_list(struct net_device *dev)
1886 {
1887 ray_dev_t *local = netdev_priv(dev);
1888 UCHAR promisc;
1889
1890 DEBUG(2,"ray_cs set_multicast_list(%p)\n",dev);
1891
1892 if (dev->flags & IFF_PROMISC)
1893 {
1894 if (local->sparm.b5.a_promiscuous_mode == 0) {
1895 DEBUG(1,"ray_cs set_multicast_list promisc on\n");
1896 local->sparm.b5.a_promiscuous_mode = 1;
1897 promisc = 1;
1898 ray_update_parm(dev, OBJID_promiscuous_mode, \
1899 &promisc, sizeof(promisc));
1900 }
1901 }
1902 else {
1903 if (local->sparm.b5.a_promiscuous_mode == 1) {
1904 DEBUG(1,"ray_cs set_multicast_list promisc off\n");
1905 local->sparm.b5.a_promiscuous_mode = 0;
1906 promisc = 0;
1907 ray_update_parm(dev, OBJID_promiscuous_mode, \
1908 &promisc, sizeof(promisc));
1909 }
1910 }
1911
1912 if (dev->flags & IFF_ALLMULTI) ray_update_multi_list(dev, 1);
1913 else
1914 {
1915 if (local->num_multi != dev->mc_count) ray_update_multi_list(dev, 0);
1916 }
1917 } /* end set_multicast_list */
1918 /*=============================================================================
1919 * All routines below here are run at interrupt time.
1920 =============================================================================*/
1921 static irqreturn_t ray_interrupt(int irq, void *dev_id)
1922 {
1923 struct net_device *dev = (struct net_device *)dev_id;
1924 struct pcmcia_device *link;
1925 ray_dev_t *local;
1926 struct ccs __iomem *pccs;
1927 struct rcs __iomem *prcs;
1928 UCHAR rcsindex;
1929 UCHAR tmp;
1930 UCHAR cmd;
1931 UCHAR status;
1932
1933 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */
1934 return IRQ_NONE;
1935
1936 DEBUG(4,"ray_cs: interrupt for *dev=%p\n",dev);
1937
1938 local = netdev_priv(dev);
1939 link = (struct pcmcia_device *)local->finder;
1940 if (!pcmcia_dev_present(link)) {
1941 DEBUG(2,"ray_cs interrupt from device not present or suspended.\n");
1942 return IRQ_NONE;
1943 }
1944 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1945
1946 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS))
1947 {
1948 DEBUG(1,"ray_cs interrupt bad rcsindex = 0x%x\n",rcsindex);
1949 clear_interrupt(local);
1950 return IRQ_HANDLED;
1951 }
1952 if (rcsindex < NUMBER_OF_CCS) /* If it's a returned CCS */
1953 {
1954 pccs = ccs_base(local) + rcsindex;
1955 cmd = readb(&pccs->cmd);
1956 status = readb(&pccs->buffer_status);
1957 switch (cmd)
1958 {
1959 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */
1960 del_timer(&local->timer);
1961 if (status == CCS_COMMAND_COMPLETE) {
1962 DEBUG(1,"ray_cs interrupt download_startup_parameters OK\n");
1963 }
1964 else {
1965 DEBUG(1,"ray_cs interrupt download_startup_parameters fail\n");
1966 }
1967 break;
1968 case CCS_UPDATE_PARAMS:
1969 DEBUG(1,"ray_cs interrupt update params done\n");
1970 if (status != CCS_COMMAND_COMPLETE) {
1971 tmp = readb(&pccs->var.update_param.failure_cause);
1972 DEBUG(0,"ray_cs interrupt update params failed - reason %d\n",tmp);
1973 }
1974 break;
1975 case CCS_REPORT_PARAMS:
1976 DEBUG(1,"ray_cs interrupt report params done\n");
1977 break;
1978 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
1979 DEBUG(1,"ray_cs interrupt CCS Update Multicast List done\n");
1980 break;
1981 case CCS_UPDATE_POWER_SAVINGS_MODE:
1982 DEBUG(1,"ray_cs interrupt update power save mode done\n");
1983 break;
1984 case CCS_START_NETWORK:
1985 case CCS_JOIN_NETWORK:
1986 if (status == CCS_COMMAND_COMPLETE) {
1987 if (readb(&pccs->var.start_network.net_initiated) == 1) {
1988 DEBUG(0,"ray_cs interrupt network \"%s\" started\n",\
1989 local->sparm.b4.a_current_ess_id);
1990 }
1991 else {
1992 DEBUG(0,"ray_cs interrupt network \"%s\" joined\n",\
1993 local->sparm.b4.a_current_ess_id);
1994 }
1995 memcpy_fromio(&local->bss_id,pccs->var.start_network.bssid,ADDRLEN);
1996
1997 if (local->fw_ver == 0x55) local->net_default_tx_rate = 3;
1998 else local->net_default_tx_rate =
1999 readb(&pccs->var.start_network.net_default_tx_rate);
2000 local->encryption = readb(&pccs->var.start_network.encryption);
2001 if (!sniffer && (local->net_type == INFRA)
2002 && !(local->sparm.b4.a_acting_as_ap_status)) {
2003 authenticate(local);
2004 }
2005 local->card_status = CARD_ACQ_COMPLETE;
2006 }
2007 else {
2008 local->card_status = CARD_ACQ_FAILED;
2009
2010 del_timer(&local->timer);
2011 local->timer.expires = jiffies + HZ*5;
2012 local->timer.data = (long)local;
2013 if (status == CCS_START_NETWORK) {
2014 DEBUG(0,"ray_cs interrupt network \"%s\" start failed\n",\
2015 local->sparm.b4.a_current_ess_id);
2016 local->timer.function = &start_net;
2017 }
2018 else {
2019 DEBUG(0,"ray_cs interrupt network \"%s\" join failed\n",\
2020 local->sparm.b4.a_current_ess_id);
2021 local->timer.function = &join_net;
2022 }
2023 add_timer(&local->timer);
2024 }
2025 break;
2026 case CCS_START_ASSOCIATION:
2027 if (status == CCS_COMMAND_COMPLETE) {
2028 local->card_status = CARD_ASSOC_COMPLETE;
2029 DEBUG(0,"ray_cs association successful\n");
2030 }
2031 else
2032 {
2033 DEBUG(0,"ray_cs association failed,\n");
2034 local->card_status = CARD_ASSOC_FAILED;
2035 join_net((u_long)local);
2036 }
2037 break;
2038 case CCS_TX_REQUEST:
2039 if (status == CCS_COMMAND_COMPLETE) {
2040 DEBUG(3,"ray_cs interrupt tx request complete\n");
2041 }
2042 else {
2043 DEBUG(1,"ray_cs interrupt tx request failed\n");
2044 }
2045 if (!sniffer) netif_start_queue(dev);
2046 netif_wake_queue(dev);
2047 break;
2048 case CCS_TEST_MEMORY:
2049 DEBUG(1,"ray_cs interrupt mem test done\n");
2050 break;
2051 case CCS_SHUTDOWN:
2052 DEBUG(1,"ray_cs interrupt Unexpected CCS returned - Shutdown\n");
2053 break;
2054 case CCS_DUMP_MEMORY:
2055 DEBUG(1,"ray_cs interrupt dump memory done\n");
2056 break;
2057 case CCS_START_TIMER:
2058 DEBUG(2,"ray_cs interrupt DING - raylink timer expired\n");
2059 break;
2060 default:
2061 DEBUG(1,"ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",\
2062 rcsindex, cmd);
2063 }
2064 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
2065 }
2066 else /* It's an RCS */
2067 {
2068 prcs = rcs_base(local) + rcsindex;
2069
2070 switch (readb(&prcs->interrupt_id))
2071 {
2072 case PROCESS_RX_PACKET:
2073 ray_rx(dev, local, prcs);
2074 break;
2075 case REJOIN_NET_COMPLETE:
2076 DEBUG(1,"ray_cs interrupt rejoin net complete\n");
2077 local->card_status = CARD_ACQ_COMPLETE;
2078 /* do we need to clear tx buffers CCS's? */
2079 if (local->sparm.b4.a_network_type == ADHOC) {
2080 if (!sniffer) netif_start_queue(dev);
2081 }
2082 else {
2083 memcpy_fromio(&local->bss_id, prcs->var.rejoin_net_complete.bssid, ADDRLEN);
2084 DEBUG(1,"ray_cs new BSSID = %02x%02x%02x%02x%02x%02x\n",\
2085 local->bss_id[0], local->bss_id[1], local->bss_id[2],\
2086 local->bss_id[3], local->bss_id[4], local->bss_id[5]);
2087 if (!sniffer) authenticate(local);
2088 }
2089 break;
2090 case ROAMING_INITIATED:
2091 DEBUG(1,"ray_cs interrupt roaming initiated\n");
2092 netif_stop_queue(dev);
2093 local->card_status = CARD_DOING_ACQ;
2094 break;
2095 case JAPAN_CALL_SIGN_RXD:
2096 DEBUG(1,"ray_cs interrupt japan call sign rx\n");
2097 break;
2098 default:
2099 DEBUG(1,"ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",\
2100 rcsindex, (unsigned int) readb(&prcs->interrupt_id));
2101 break;
2102 }
2103 writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2104 }
2105 clear_interrupt(local);
2106 return IRQ_HANDLED;
2107 } /* ray_interrupt */
2108 /*===========================================================================*/
2109 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs)
2110 {
2111 int rx_len;
2112 unsigned int pkt_addr;
2113 void __iomem *pmsg;
2114 DEBUG(4,"ray_rx process rx packet\n");
2115
2116 /* Calculate address of packet within Rx buffer */
2117 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2118 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2119 /* Length of first packet fragment */
2120 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2121 + readb(&prcs->var.rx_packet.rx_data_length[1]);
2122
2123 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2124 pmsg = local->rmem + pkt_addr;
2125 switch(readb(pmsg))
2126 {
2127 case DATA_TYPE:
2128 DEBUG(4,"ray_rx data type\n");
2129 rx_data(dev, prcs, pkt_addr, rx_len);
2130 break;
2131 case AUTHENTIC_TYPE:
2132 DEBUG(4,"ray_rx authentic type\n");
2133 if (sniffer) rx_data(dev, prcs, pkt_addr, rx_len);
2134 else rx_authenticate(local, prcs, pkt_addr, rx_len);
2135 break;
2136 case DEAUTHENTIC_TYPE:
2137 DEBUG(4,"ray_rx deauth type\n");
2138 if (sniffer) rx_data(dev, prcs, pkt_addr, rx_len);
2139 else rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2140 break;
2141 case NULL_MSG_TYPE:
2142 DEBUG(3,"ray_cs rx NULL msg\n");
2143 break;
2144 case BEACON_TYPE:
2145 DEBUG(4,"ray_rx beacon type\n");
2146 if (sniffer) rx_data(dev, prcs, pkt_addr, rx_len);
2147
2148 copy_from_rx_buff(local, (UCHAR *)&local->last_bcn, pkt_addr,
2149 rx_len < sizeof(struct beacon_rx) ?
2150 rx_len : sizeof(struct beacon_rx));
2151
2152 local->beacon_rxed = 1;
2153 /* Get the statistics so the card counters never overflow */
2154 ray_get_stats(dev);
2155 break;
2156 default:
2157 DEBUG(0,"ray_cs unknown pkt type %2x\n", (unsigned int) readb(pmsg));
2158 break;
2159 }
2160
2161 } /* end ray_rx */
2162 /*===========================================================================*/
2163 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs, unsigned int pkt_addr,
2164 int rx_len)
2165 {
2166 struct sk_buff *skb = NULL;
2167 struct rcs __iomem *prcslink = prcs;
2168 ray_dev_t *local = netdev_priv(dev);
2169 UCHAR *rx_ptr;
2170 int total_len;
2171 int tmp;
2172 #ifdef WIRELESS_SPY
2173 int siglev = local->last_rsl;
2174 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */
2175 #endif
2176
2177 if (!sniffer) {
2178 if (translate) {
2179 /* TBD length needs fixing for translated header */
2180 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2181 rx_len > (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + FCS_LEN))
2182 {
2183 DEBUG(0,"ray_cs invalid packet length %d received \n",rx_len);
2184 return;
2185 }
2186 }
2187 else /* encapsulated ethernet */ {
2188 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2189 rx_len > (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN + FCS_LEN))
2190 {
2191 DEBUG(0,"ray_cs invalid packet length %d received \n",rx_len);
2192 return;
2193 }
2194 }
2195 }
2196 DEBUG(4,"ray_cs rx_data packet\n");
2197 /* If fragmented packet, verify sizes of fragments add up */
2198 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2199 DEBUG(1,"ray_cs rx'ed fragment\n");
2200 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2201 + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2202 total_len = tmp;
2203 prcslink = prcs;
2204 do {
2205 tmp -= (readb(&prcslink->var.rx_packet.rx_data_length[0]) << 8)
2206 + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2207 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index) == 0xFF
2208 || tmp < 0) break;
2209 prcslink = rcs_base(local)
2210 + readb(&prcslink->link_field);
2211 } while (1);
2212
2213 if (tmp < 0)
2214 {
2215 DEBUG(0,"ray_cs rx_data fragment lengths don't add up\n");
2216 local->stats.rx_dropped++;
2217 release_frag_chain(local, prcs);
2218 return;
2219 }
2220 }
2221 else { /* Single unfragmented packet */
2222 total_len = rx_len;
2223 }
2224
2225 skb = dev_alloc_skb( total_len+5 );
2226 if (skb == NULL)
2227 {
2228 DEBUG(0,"ray_cs rx_data could not allocate skb\n");
2229 local->stats.rx_dropped++;
2230 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2231 release_frag_chain(local, prcs);
2232 return;
2233 }
2234 skb_reserve( skb, 2); /* Align IP on 16 byte (TBD check this)*/
2235
2236 DEBUG(4,"ray_cs rx_data total_len = %x, rx_len = %x\n",total_len,rx_len);
2237
2238 /************************/
2239 /* Reserve enough room for the whole damn packet. */
2240 rx_ptr = skb_put( skb, total_len);
2241 /* Copy the whole packet to sk_buff */
2242 rx_ptr += copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2243 /* Get source address */
2244 #ifdef WIRELESS_SPY
2245 skb_copy_from_linear_data_offset(skb, offsetof(struct mac_header, addr_2),
2246 linksrcaddr, ETH_ALEN);
2247 #endif
2248 /* Now, deal with encapsulation/translation/sniffer */
2249 if (!sniffer) {
2250 if (!translate) {
2251 /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2252 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2253 skb_pull( skb, RX_MAC_HEADER_LENGTH);
2254 }
2255 else {
2256 /* Do translation */
2257 untranslate(local, skb, total_len);
2258 }
2259 }
2260 else
2261 { /* sniffer mode, so just pass whole packet */ };
2262
2263 /************************/
2264 /* Now pick up the rest of the fragments if any */
2265 tmp = 17;
2266 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2267 prcslink = prcs;
2268 DEBUG(1,"ray_cs rx_data in fragment loop\n");
2269 do {
2270 prcslink = rcs_base(local)
2271 + readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2272 rx_len = (( readb(&prcslink->var.rx_packet.rx_data_length[0]) << 8)
2273 + readb(&prcslink->var.rx_packet.rx_data_length[1]))
2274 & RX_BUFF_END;
2275 pkt_addr = (( readb(&prcslink->var.rx_packet.rx_data_ptr[0]) << 8)
2276 + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2277 & RX_BUFF_END;
2278
2279 rx_ptr += copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2280
2281 } while (tmp-- &&
2282 readb(&prcslink->var.rx_packet.next_frag_rcs_index) != 0xFF);
2283 release_frag_chain(local, prcs);
2284 }
2285
2286 skb->protocol = eth_type_trans(skb,dev);
2287 netif_rx(skb);
2288 dev->last_rx = jiffies;
2289 local->stats.rx_packets++;
2290 local->stats.rx_bytes += total_len;
2291
2292 /* Gather signal strength per address */
2293 #ifdef WIRELESS_SPY
2294 /* For the Access Point or the node having started the ad-hoc net
2295 * note : ad-hoc work only in some specific configurations, but we
2296 * kludge in ray_get_wireless_stats... */
2297 if(!memcmp(linksrcaddr, local->bss_id, ETH_ALEN))
2298 {
2299 /* Update statistics */
2300 /*local->wstats.qual.qual = none ? */
2301 local->wstats.qual.level = siglev;
2302 /*local->wstats.qual.noise = none ? */
2303 local->wstats.qual.updated = 0x2;
2304 }
2305 /* Now, update the spy stuff */
2306 {
2307 struct iw_quality wstats;
2308 wstats.level = siglev;
2309 /* wstats.noise = none ? */
2310 /* wstats.qual = none ? */
2311 wstats.updated = 0x2;
2312 /* Update spy records */
2313 wireless_spy_update(dev, linksrcaddr, &wstats);
2314 }
2315 #endif /* WIRELESS_SPY */
2316 } /* end rx_data */
2317 /*===========================================================================*/
2318 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2319 {
2320 snaphdr_t *psnap = (snaphdr_t *)(skb->data + RX_MAC_HEADER_LENGTH);
2321 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2322 __be16 type = *(__be16 *)psnap->ethertype;
2323 int delta;
2324 struct ethhdr *peth;
2325 UCHAR srcaddr[ADDRLEN];
2326 UCHAR destaddr[ADDRLEN];
2327 static UCHAR org_bridge[3] = {0, 0, 0xf8};
2328 static UCHAR org_1042[3] = {0, 0, 0};
2329
2330 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2331 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2332
2333 #ifdef PCMCIA_DEBUG
2334 if (pc_debug > 3) {
2335 int i;
2336 printk(KERN_DEBUG "skb->data before untranslate");
2337 for (i=0;i<64;i++)
2338 printk("%02x ",skb->data[i]);
2339 printk("\n" KERN_DEBUG "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2340 ntohs(type),
2341 psnap->dsap, psnap->ssap, psnap->ctrl,
2342 psnap->org[0], psnap->org[1], psnap->org[2]);
2343 printk(KERN_DEBUG "untranslate skb->data = %p\n",skb->data);
2344 }
2345 #endif
2346
2347 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2348 /* not a snap type so leave it alone */
2349 DEBUG(3,"ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2350 psnap->dsap, psnap->ssap, psnap->ctrl);
2351
2352 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2353 peth = (struct ethhdr *)(skb->data + delta);
2354 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2355 }
2356 else { /* Its a SNAP */
2357 if (memcmp(psnap->org, org_bridge, 3) == 0) { /* EtherII and nuke the LLC */
2358 DEBUG(3,"ray_cs untranslate Bridge encap\n");
2359 delta = RX_MAC_HEADER_LENGTH
2360 + sizeof(struct snaphdr_t) - ETH_HLEN;
2361 peth = (struct ethhdr *)(skb->data + delta);
2362 peth->h_proto = type;
2363 } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2364 switch (ntohs(type)) {
2365 case ETH_P_IPX:
2366 case ETH_P_AARP:
2367 DEBUG(3,"ray_cs untranslate RFC IPX/AARP\n");
2368 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2369 peth = (struct ethhdr *)(skb->data + delta);
2370 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2371 break;
2372 default:
2373 DEBUG(3,"ray_cs untranslate RFC default\n");
2374 delta = RX_MAC_HEADER_LENGTH +
2375 sizeof(struct snaphdr_t) - ETH_HLEN;
2376 peth = (struct ethhdr *)(skb->data + delta);
2377 peth->h_proto = type;
2378 break;
2379 }
2380 } else {
2381 printk("ray_cs untranslate very confused by packet\n");
2382 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2383 peth = (struct ethhdr *)(skb->data + delta);
2384 peth->h_proto = type;
2385 }
2386 }
2387 /* TBD reserve skb_reserve(skb, delta); */
2388 skb_pull(skb, delta);
2389 DEBUG(3,"untranslate after skb_pull(%d), skb->data = %p\n",delta,skb->data);
2390 memcpy(peth->h_dest, destaddr, ADDRLEN);
2391 memcpy(peth->h_source, srcaddr, ADDRLEN);
2392 #ifdef PCMCIA_DEBUG
2393 if (pc_debug > 3) {
2394 int i;
2395 printk(KERN_DEBUG "skb->data after untranslate:");
2396 for (i=0;i<64;i++)
2397 printk("%02x ",skb->data[i]);
2398 printk("\n");
2399 }
2400 #endif
2401 } /* end untranslate */
2402 /*===========================================================================*/
2403 /* Copy data from circular receive buffer to PC memory.
2404 * dest = destination address in PC memory
2405 * pkt_addr = source address in receive buffer
2406 * len = length of packet to copy
2407 */
2408 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int length)
2409 {
2410 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2411 if (wrap_bytes <= 0)
2412 {
2413 memcpy_fromio(dest,local->rmem + pkt_addr,length);
2414 }
2415 else /* Packet wrapped in circular buffer */
2416 {
2417 memcpy_fromio(dest,local->rmem+pkt_addr,length - wrap_bytes);
2418 memcpy_fromio(dest + length - wrap_bytes, local->rmem, wrap_bytes);
2419 }
2420 return length;
2421 }
2422 /*===========================================================================*/
2423 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem * prcs)
2424 {
2425 struct rcs __iomem *prcslink = prcs;
2426 int tmp = 17;
2427 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2428
2429 while (tmp--) {
2430 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2431 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2432 DEBUG(1,"ray_cs interrupt bad rcsindex = 0x%x\n",rcsindex);
2433 break;
2434 }
2435 prcslink = rcs_base(local) + rcsindex;
2436 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2437 }
2438 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2439 }
2440 /*===========================================================================*/
2441 static void authenticate(ray_dev_t *local)
2442 {
2443 struct pcmcia_device *link = local->finder;
2444 DEBUG(0,"ray_cs Starting authentication.\n");
2445 if (!(pcmcia_dev_present(link))) {
2446 DEBUG(2,"ray_cs authenticate - device not present\n");
2447 return;
2448 }
2449
2450 del_timer(&local->timer);
2451 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2452 local->timer.function = &join_net;
2453 }
2454 else {
2455 local->timer.function = &authenticate_timeout;
2456 }
2457 local->timer.expires = jiffies + HZ*2;
2458 local->timer.data = (long)local;
2459 add_timer(&local->timer);
2460 local->authentication_state = AWAITING_RESPONSE;
2461 } /* end authenticate */
2462 /*===========================================================================*/
2463 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2464 unsigned int pkt_addr, int rx_len)
2465 {
2466 UCHAR buff[256];
2467 struct rx_msg *msg = (struct rx_msg *)buff;
2468
2469 del_timer(&local->timer);
2470
2471 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2472 /* if we are trying to get authenticated */
2473 if (local->sparm.b4.a_network_type == ADHOC) {
2474 DEBUG(1,"ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n", msg->var[0],msg->var[1],msg->var[2],msg->var[3],msg->var[4],msg->var[5]);
2475 if (msg->var[2] == 1) {
2476 DEBUG(0,"ray_cs Sending authentication response.\n");
2477 if (!build_auth_frame (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2478 local->authentication_state = NEED_TO_AUTH;
2479 memcpy(local->auth_id, msg->mac.addr_2, ADDRLEN);
2480 }
2481 }
2482 }
2483 else /* Infrastructure network */
2484 {
2485 if (local->authentication_state == AWAITING_RESPONSE) {
2486 /* Verify authentication sequence #2 and success */
2487 if (msg->var[2] == 2) {
2488 if ((msg->var[3] | msg->var[4]) == 0) {
2489 DEBUG(1,"Authentication successful\n");
2490 local->card_status = CARD_AUTH_COMPLETE;
2491 associate(local);
2492 local->authentication_state = AUTHENTICATED;
2493 }
2494 else {
2495 DEBUG(0,"Authentication refused\n");
2496 local->card_status = CARD_AUTH_REFUSED;
2497 join_net((u_long)local);
2498 local->authentication_state = UNAUTHENTICATED;
2499 }
2500 }
2501 }
2502 }
2503
2504 } /* end rx_authenticate */
2505 /*===========================================================================*/
2506 static void associate(ray_dev_t *local)
2507 {
2508 struct ccs __iomem *pccs;
2509 struct pcmcia_device *link = local->finder;
2510 struct net_device *dev = link->priv;
2511 int ccsindex;
2512 if (!(pcmcia_dev_present(link))) {
2513 DEBUG(2,"ray_cs associate - device not present\n");
2514 return;
2515 }
2516 /* If no tx buffers available, return*/
2517 if ((ccsindex = get_free_ccs(local)) < 0)
2518 {
2519 /* TBD should never be here but... what if we are? */
2520 DEBUG(1,"ray_cs associate - No free ccs\n");
2521 return;
2522 }
2523 DEBUG(1,"ray_cs Starting association with access point\n");
2524 pccs = ccs_base(local) + ccsindex;
2525 /* fill in the CCS */
2526 writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2527 /* Interrupt the firmware to process the command */
2528 if (interrupt_ecf(local, ccsindex)) {
2529 DEBUG(1,"ray_cs associate failed - ECF not ready for intr\n");
2530 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2531
2532 del_timer(&local->timer);
2533 local->timer.expires = jiffies + HZ*2;
2534 local->timer.data = (long)local;
2535 local->timer.function = &join_net;
2536 add_timer(&local->timer);
2537 local->card_status = CARD_ASSOC_FAILED;
2538 return;
2539 }
2540 if (!sniffer) netif_start_queue(dev);
2541
2542 } /* end associate */
2543 /*===========================================================================*/
2544 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2545 unsigned int pkt_addr, int rx_len)
2546 {
2547 /* UCHAR buff[256];
2548 struct rx_msg *msg = (struct rx_msg *)buff;
2549 */
2550 DEBUG(0,"Deauthentication frame received\n");
2551 local->authentication_state = UNAUTHENTICATED;
2552 /* Need to reauthenticate or rejoin depending on reason code */
2553 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2554 */
2555 }
2556 /*===========================================================================*/
2557 static void clear_interrupt(ray_dev_t *local)
2558 {
2559 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2560 }
2561 /*===========================================================================*/
2562 #ifdef CONFIG_PROC_FS
2563 #define MAXDATA (PAGE_SIZE - 80)
2564
2565 static char *card_status[] = {
2566 "Card inserted - uninitialized", /* 0 */
2567 "Card not downloaded", /* 1 */
2568 "Waiting for download parameters", /* 2 */
2569 "Card doing acquisition", /* 3 */
2570 "Acquisition complete", /* 4 */
2571 "Authentication complete", /* 5 */
2572 "Association complete", /* 6 */
2573 "???", "???", "???", "???", /* 7 8 9 10 undefined */
2574 "Card init error", /* 11 */
2575 "Download parameters error", /* 12 */
2576 "???", /* 13 */
2577 "Acquisition failed", /* 14 */
2578 "Authentication refused", /* 15 */
2579 "Association failed" /* 16 */
2580 };
2581
2582 static char *nettype[] = {"Adhoc", "Infra "};
2583 static char *framing[] = {"Encapsulation", "Translation"}
2584 ;
2585 /*===========================================================================*/
2586 static int ray_cs_proc_show(struct seq_file *m, void *v)
2587 {
2588 /* Print current values which are not available via other means
2589 * eg ifconfig
2590 */
2591 int i;
2592 struct pcmcia_device *link;
2593 struct net_device *dev;
2594 ray_dev_t *local;
2595 UCHAR *p;
2596 struct freq_hop_element *pfh;
2597 UCHAR c[33];
2598 DECLARE_MAC_BUF(mac);
2599
2600 link = this_device;
2601 if (!link)
2602 return 0;
2603 dev = (struct net_device *)link->priv;
2604 if (!dev)
2605 return 0;
2606 local = netdev_priv(dev);
2607 if (!local)
2608 return 0;
2609
2610 seq_puts(m, "Raylink Wireless LAN driver status\n");
2611 seq_printf(m, "%s\n", rcsid);
2612 /* build 4 does not report version, and field is 0x55 after memtest */
2613 seq_puts(m, "Firmware version = ");
2614 if (local->fw_ver == 0x55)
2615 seq_puts(m, "4 - Use dump_cis for more details\n");
2616 else
2617 seq_printf(m, "%2d.%02d.%02d\n",
2618 local->fw_ver, local->fw_bld, local->fw_var);
2619
2620 for (i=0; i<32; i++) c[i] = local->sparm.b5.a_current_ess_id[i];
2621 c[32] = 0;
2622 seq_printf(m, "%s network ESSID = \"%s\"\n",
2623 nettype[local->sparm.b5.a_network_type], c);
2624
2625 p = local->bss_id;
2626 seq_printf(m, "BSSID = %s\n",
2627 print_mac(mac, p));
2628
2629 seq_printf(m, "Country code = %d\n",
2630 local->sparm.b5.a_curr_country_code);
2631
2632 i = local->card_status;
2633 if (i < 0) i = 10;
2634 if (i > 16) i = 10;
2635 seq_printf(m, "Card status = %s\n", card_status[i]);
2636
2637 seq_printf(m, "Framing mode = %s\n",framing[translate]);
2638
2639 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl);
2640
2641 if (local->beacon_rxed) {
2642 /* Pull some fields out of last beacon received */
2643 seq_printf(m, "Beacon Interval = %d Kus\n",
2644 local->last_bcn.beacon_intvl[0]
2645 + 256 * local->last_bcn.beacon_intvl[1]);
2646
2647 p = local->last_bcn.elements;
2648 if (p[0] == C_ESSID_ELEMENT_ID) p += p[1] + 2;
2649 else {
2650 seq_printf(m, "Parse beacon failed at essid element id = %d\n",p[0]);
2651 return 0;
2652 }
2653
2654 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2655 seq_puts(m, "Supported rate codes = ");
2656 for (i=2; i<p[1] + 2; i++)
2657 seq_printf(m, "0x%02x ", p[i]);
2658 seq_putc(m, '\n');
2659 p += p[1] + 2;
2660 }
2661 else {
2662 seq_puts(m, "Parse beacon failed at rates element\n");
2663 return 0;
2664 }
2665
2666 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2667 pfh = (struct freq_hop_element *)p;
2668 seq_printf(m, "Hop dwell = %d Kus\n",
2669 pfh->dwell_time[0] + 256 * pfh->dwell_time[1]);
2670 seq_printf(m, "Hop set = %d \n", pfh->hop_set);
2671 seq_printf(m, "Hop pattern = %d \n", pfh->hop_pattern);
2672 seq_printf(m, "Hop index = %d \n", pfh->hop_index);
2673 p += p[1] + 2;
2674 }
2675 else {
2676 seq_puts(m, "Parse beacon failed at FH param element\n");
2677 return 0;
2678 }
2679 } else {
2680 seq_puts(m, "No beacons received\n");
2681 }
2682 return 0;
2683 }
2684
2685 static int ray_cs_proc_open(struct inode *inode, struct file *file)
2686 {
2687 return single_open(file, ray_cs_proc_show, NULL);
2688 }
2689
2690 static const struct file_operations ray_cs_proc_fops = {
2691 .owner = THIS_MODULE,
2692 .open = ray_cs_proc_open,
2693 .read = seq_read,
2694 .llseek = seq_lseek,
2695 .release = single_release,
2696 };
2697 #endif
2698 /*===========================================================================*/
2699 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2700 {
2701 int addr;
2702 struct ccs __iomem *pccs;
2703 struct tx_msg __iomem *ptx;
2704 int ccsindex;
2705
2706 /* If no tx buffers available, return */
2707 if ((ccsindex = get_free_tx_ccs(local)) < 0)
2708 {
2709 DEBUG(1,"ray_cs send authenticate - No free tx ccs\n");
2710 return -1;
2711 }
2712
2713 pccs = ccs_base(local) + ccsindex;
2714
2715 /* Address in card space */
2716 addr = TX_BUF_BASE + (ccsindex << 11);
2717 /* fill in the CCS */
2718 writeb(CCS_TX_REQUEST, &pccs->cmd);
2719 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2720 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2721 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2722 writeb(TX_AUTHENTICATE_LENGTH_LSB,pccs->var.tx_request.tx_data_length + 1);
2723 writeb(0, &pccs->var.tx_request.pow_sav_mode);
2724
2725 ptx = local->sram + addr;
2726 /* fill in the mac header */
2727 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2728 writeb(0, &ptx->mac.frame_ctl_2);
2729
2730 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2731 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2732 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2733
2734 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2735 memset_io(ptx->var, 0, 6);
2736 writeb(auth_type & 0xff, ptx->var + 2);
2737
2738 /* Interrupt the firmware to process the command */
2739 if (interrupt_ecf(local, ccsindex)) {
2740 DEBUG(1,"ray_cs send authentication request failed - ECF not ready for intr\n");
2741 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2742 return -1;
2743 }
2744 return 0;
2745 } /* End build_auth_frame */
2746
2747 /*===========================================================================*/
2748 #ifdef CONFIG_PROC_FS
2749 static void raycs_write(const char *name, write_proc_t *w, void *data)
2750 {
2751 struct proc_dir_entry * entry = create_proc_entry(name, S_IFREG | S_IWUSR, NULL);
2752 if (entry) {
2753 entry->write_proc = w;
2754 entry->data = data;
2755 }
2756 }
2757
2758 static int write_essid(struct file *file, const char __user *buffer, unsigned long count, void *data)
2759 {
2760 static char proc_essid[33];
2761 int len = count;
2762
2763 if (len > 32)
2764 len = 32;
2765 memset(proc_essid, 0, 33);
2766 if (copy_from_user(proc_essid, buffer, len))
2767 return -EFAULT;
2768 essid = proc_essid;
2769 return count;
2770 }
2771
2772 static int write_int(struct file *file, const char __user *buffer, unsigned long count, void *data)
2773 {
2774 static char proc_number[10];
2775 char *p;
2776 int nr, len;
2777
2778 if (!count)
2779 return 0;
2780
2781 if (count > 9)
2782 return -EINVAL;
2783 if (copy_from_user(proc_number, buffer, count))
2784 return -EFAULT;
2785 p = proc_number;
2786 nr = 0;
2787 len = count;
2788 do {
2789 unsigned int c = *p - '0';
2790 if (c > 9)
2791 return -EINVAL;
2792 nr = nr*10 + c;
2793 p++;
2794 } while (--len);
2795 *(int *)data = nr;
2796 return count;
2797 }
2798 #endif
2799
2800 static struct pcmcia_device_id ray_ids[] = {
2801 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2802 PCMCIA_DEVICE_NULL,
2803 };
2804 MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2805
2806 static struct pcmcia_driver ray_driver = {
2807 .owner = THIS_MODULE,
2808 .drv = {
2809 .name = "ray_cs",
2810 },
2811 .probe = ray_probe,
2812 .remove = ray_detach,
2813 .id_table = ray_ids,
2814 .suspend = ray_suspend,
2815 .resume = ray_resume,
2816 };
2817
2818 static int __init init_ray_cs(void)
2819 {
2820 int rc;
2821
2822 DEBUG(1, "%s\n", rcsid);
2823 rc = pcmcia_register_driver(&ray_driver);
2824 DEBUG(1, "raylink init_module register_pcmcia_driver returns 0x%x\n",rc);
2825
2826 #ifdef CONFIG_PROC_FS
2827 proc_mkdir("driver/ray_cs", NULL);
2828
2829 proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops);
2830 raycs_write("driver/ray_cs/essid", write_essid, NULL);
2831 raycs_write("driver/ray_cs/net_type", write_int, &net_type);
2832 raycs_write("driver/ray_cs/translate", write_int, &translate);
2833 #endif
2834 if (translate != 0) translate = 1;
2835 return 0;
2836 } /* init_ray_cs */
2837
2838 /*===========================================================================*/
2839
2840 static void __exit exit_ray_cs(void)
2841 {
2842 DEBUG(0, "ray_cs: cleanup_module\n");
2843
2844 #ifdef CONFIG_PROC_FS
2845 remove_proc_entry("driver/ray_cs/ray_cs", NULL);
2846 remove_proc_entry("driver/ray_cs/essid", NULL);
2847 remove_proc_entry("driver/ray_cs/net_type", NULL);
2848 remove_proc_entry("driver/ray_cs/translate", NULL);
2849 remove_proc_entry("driver/ray_cs", NULL);
2850 #endif
2851
2852 pcmcia_unregister_driver(&ray_driver);
2853 } /* exit_ray_cs */
2854
2855 module_init(init_ray_cs);
2856 module_exit(exit_ray_cs);
2857
2858 /*===========================================================================*/
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