1 // SPDX-License-Identifier: GPL-2.0-only
2 /*=============================================================================
3 *
4 * A PCMCIA client driver for the Raylink wireless LAN card.
5 * The starting point for this module was the skeleton.c in the
6 * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net
7 *
8 * Copyright (c) 1998 Corey Thomas (corey@world.std.com)
9 *
10 * Changes:
11 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
12 * - reorganize kmallocs in ray_attach, checking all for failure
13 * and releasing the previous allocations if one fails
14 *
15 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003
16 * - Audit copy_to_user in ioctl(SIOCGIWESSID)
17 *
18 =============================================================================*/
19
20 #include <linux/module.h>
21 #include <linux/kernel.h>
22 #include <linux/proc_fs.h>
23 #include <linux/ptrace.h>
24 #include <linux/seq_file.h>
25 #include <linux/string.h>
26 #include <linux/timer.h>
27 #include <linux/init.h>
28 #include <linux/netdevice.h>
29 #include <linux/etherdevice.h>
30 #include <linux/if_arp.h>
31 #include <linux/ioport.h>
32 #include <linux/skbuff.h>
33 #include <linux/ieee80211.h>
34
35 #include <pcmcia/cistpl.h>
36 #include <pcmcia/cisreg.h>
37 #include <pcmcia/ds.h>
38
39 #include <linux/wireless.h>
40 #include <net/iw_handler.h>
41
42 #include <asm/io.h>
43 #include <asm/byteorder.h>
44 #include <linux/uaccess.h>
45
46 /* Warning : these stuff will slow down the driver... */
47 #define WIRELESS_SPY /* Enable spying addresses */
48 /* Definitions we need for spy */
49 typedef struct iw_statistics iw_stats;
50 typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */
51
52 #include "rayctl.h"
53 #include "ray_cs.h"
54
55
56 /** Prototypes based on PCMCIA skeleton driver *******************************/
57 static int ray_config(struct pcmcia_device *link);
58 static void ray_release(struct pcmcia_device *link);
59 static void ray_detach(struct pcmcia_device *p_dev);
60
61 /***** Prototypes indicated by device structure ******************************/
62 static int ray_dev_close(struct net_device *dev);
63 static int ray_dev_config(struct net_device *dev, struct ifmap *map);
64 static struct net_device_stats *ray_get_stats(struct net_device *dev);
65 static int ray_dev_init(struct net_device *dev);
66
67 static int ray_open(struct net_device *dev);
68 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
69 struct net_device *dev);
70 static void set_multicast_list(struct net_device *dev);
71 static void ray_update_multi_list(struct net_device *dev, int all);
72 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
73 unsigned char *data, int len);
74 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
75 UCHAR msg_type, unsigned char *data);
76 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
77 static iw_stats *ray_get_wireless_stats(struct net_device *dev);
78 static const struct iw_handler_def ray_handler_def;
79
80 /***** Prototypes for raylink functions **************************************/
81 static void authenticate(ray_dev_t *local);
82 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
83 static void authenticate_timeout(struct timer_list *t);
84 static int get_free_ccs(ray_dev_t *local);
85 static int get_free_tx_ccs(ray_dev_t *local);
86 static void init_startup_params(ray_dev_t *local);
87 static int parse_addr(char *in_str, UCHAR *out);
88 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type);
89 static int ray_init(struct net_device *dev);
90 static int interrupt_ecf(ray_dev_t *local, int ccs);
91 static void ray_reset(struct net_device *dev);
92 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
93 static void verify_dl_startup(struct timer_list *t);
94
95 /* Prototypes for interrpt time functions **********************************/
96 static irqreturn_t ray_interrupt(int reg, void *dev_id);
97 static void clear_interrupt(ray_dev_t *local);
98 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
99 unsigned int pkt_addr, int rx_len);
100 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
101 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
102 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
103 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
104 unsigned int pkt_addr, int rx_len);
105 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
106 unsigned int pkt_addr, int rx_len);
107 static void associate(ray_dev_t *local);
108
109 /* Card command functions */
110 static int dl_startup_params(struct net_device *dev);
111 static void join_net(struct timer_list *t);
112 static void start_net(struct timer_list *t);
113
114 /*===========================================================================*/
115 /* Parameters that can be set with 'insmod' */
116
117 /* ADHOC=0, Infrastructure=1 */
118 static int net_type = ADHOC;
119
120 /* Hop dwell time in Kus (1024 us units defined by 802.11) */
121 static int hop_dwell = 128;
122
123 /* Beacon period in Kus */
124 static int beacon_period = 256;
125
126 /* power save mode (0 = off, 1 = save power) */
127 static int psm;
128
129 /* String for network's Extended Service Set ID. 32 Characters max */
130 static char *essid;
131
132 /* Default to encapsulation unless translation requested */
133 static bool translate = true;
134
135 static int country = USA;
136
137 static int sniffer;
138
139 static int bc;
140
141 /* 48 bit physical card address if overriding card's real physical
142 * address is required. Since IEEE 802.11 addresses are 48 bits
143 * like ethernet, an int can't be used, so a string is used. To
144 * allow use of addresses starting with a decimal digit, the first
145 * character must be a letter and will be ignored. This letter is
146 * followed by up to 12 hex digits which are the address. If less
147 * than 12 digits are used, the address will be left filled with 0's.
148 * Note that bit 0 of the first byte is the broadcast bit, and evil
149 * things will happen if it is not 0 in a card address.
150 */
151 static char *phy_addr = NULL;
152
153 static unsigned int ray_mem_speed = 500;
154
155 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
156 static struct pcmcia_device *this_device = NULL;
157
158 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
159 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
160 MODULE_LICENSE("GPL");
161
162 module_param(net_type, int, 0);
163 module_param(hop_dwell, int, 0);
164 module_param(beacon_period, int, 0);
165 module_param(psm, int, 0);
166 module_param(essid, charp, 0);
167 module_param(translate, bool, 0);
168 module_param(country, int, 0);
169 module_param(sniffer, int, 0);
170 module_param(bc, int, 0);
171 module_param(phy_addr, charp, 0);
172 module_param(ray_mem_speed, int, 0);
173
174 static const UCHAR b5_default_startup_parms[] = {
175 0, 0, /* Adhoc station */
176 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
177 0, 0, 0, 0, 0, 0, 0, 0,
178 0, 0, 0, 0, 0, 0, 0, 0,
179 0, 0, 0, 0, 0, 0, 0, 0,
180 1, 0, /* Active scan, CA Mode */
181 0, 0, 0, 0, 0, 0, /* No default MAC addr */
182 0x7f, 0xff, /* Frag threshold */
183 0x00, 0x80, /* Hop time 128 Kus */
184 0x01, 0x00, /* Beacon period 256 Kus */
185 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
186 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */
187 0x7f, 0xff, /* RTS threshold */
188 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
189 0x05, /* assoc resp timeout thresh */
190 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */
191 0, /* Promiscuous mode */
192 0x0c, 0x0bd, /* Unique word */
193 0x32, /* Slot time */
194 0xff, 0xff, /* roam-low snr, low snr count */
195 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
196 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */
197 /* b4 - b5 differences start here */
198 0x00, 0x3f, /* CW max */
199 0x00, 0x0f, /* CW min */
200 0x04, 0x08, /* Noise gain, limit offset */
201 0x28, 0x28, /* det rssi, med busy offsets */
202 7, /* det sync thresh */
203 0, 2, 2, /* test mode, min, max */
204 0, /* allow broadcast SSID probe resp */
205 0, 0, /* privacy must start, can join */
206 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */
207 };
208
209 static const UCHAR b4_default_startup_parms[] = {
210 0, 0, /* Adhoc station */
211 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
212 0, 0, 0, 0, 0, 0, 0, 0,
213 0, 0, 0, 0, 0, 0, 0, 0,
214 0, 0, 0, 0, 0, 0, 0, 0,
215 1, 0, /* Active scan, CA Mode */
216 0, 0, 0, 0, 0, 0, /* No default MAC addr */
217 0x7f, 0xff, /* Frag threshold */
218 0x02, 0x00, /* Hop time */
219 0x00, 0x01, /* Beacon period */
220 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
221 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */
222 0x7f, 0xff, /* RTS threshold */
223 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
224 0x05, /* assoc resp timeout thresh */
225 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */
226 0, /* Promiscuous mode */
227 0x0c, 0x0bd, /* Unique word */
228 0x4e, /* Slot time (TBD seems wrong) */
229 0xff, 0xff, /* roam-low snr, low snr count */
230 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
231 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */
232 /* b4 - b5 differences start here */
233 0x3f, 0x0f, /* CW max, min */
234 0x04, 0x08, /* Noise gain, limit offset */
235 0x28, 0x28, /* det rssi, med busy offsets */
236 7, /* det sync thresh */
237 0, 2, 2, /* test mode, min, max */
238 0, /* rx/tx delay */
239 0, 0, 0, 0, 0, 0, /* current BSS id */
240 0 /* hop set */
241 };
242
243 /*===========================================================================*/
244 static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 };
245
246 static const char hop_pattern_length[] = { 1,
247 USA_HOP_MOD, EUROPE_HOP_MOD,
248 JAPAN_HOP_MOD, KOREA_HOP_MOD,
249 SPAIN_HOP_MOD, FRANCE_HOP_MOD,
250 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
251 JAPAN_TEST_HOP_MOD
252 };
253
254 static const char rcsid[] =
255 "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
256
257 static const struct net_device_ops ray_netdev_ops = {
258 .ndo_init = ray_dev_init,
259 .ndo_open = ray_open,
260 .ndo_stop = ray_dev_close,
261 .ndo_start_xmit = ray_dev_start_xmit,
262 .ndo_set_config = ray_dev_config,
263 .ndo_get_stats = ray_get_stats,
264 .ndo_set_rx_mode = set_multicast_list,
265 .ndo_set_mac_address = eth_mac_addr,
266 .ndo_validate_addr = eth_validate_addr,
267 };
268
ray_probe(struct pcmcia_device * p_dev)269 static int ray_probe(struct pcmcia_device *p_dev)
270 {
271 ray_dev_t *local;
272 struct net_device *dev;
273 int ret;
274
275 dev_dbg(&p_dev->dev, "ray_attach()\n");
276
277 /* Allocate space for private device-specific data */
278 dev = alloc_etherdev(sizeof(ray_dev_t));
279 if (!dev)
280 return -ENOMEM;
281
282 local = netdev_priv(dev);
283 local->finder = p_dev;
284
285 /* The io structure describes IO port mapping. None used here */
286 p_dev->resource[0]->end = 0;
287 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
288
289 /* General socket configuration */
290 p_dev->config_flags |= CONF_ENABLE_IRQ;
291 p_dev->config_index = 1;
292
293 p_dev->priv = dev;
294
295 local->finder = p_dev;
296 local->card_status = CARD_INSERTED;
297 local->authentication_state = UNAUTHENTICATED;
298 local->num_multi = 0;
299 dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n",
300 p_dev, dev, local, &ray_interrupt);
301
302 /* Raylink entries in the device structure */
303 dev->netdev_ops = &ray_netdev_ops;
304 dev->wireless_handlers = &ray_handler_def;
305 #ifdef WIRELESS_SPY
306 local->wireless_data.spy_data = &local->spy_data;
307 dev->wireless_data = &local->wireless_data;
308 #endif /* WIRELESS_SPY */
309
310
311 dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n");
312 netif_stop_queue(dev);
313
314 timer_setup(&local->timer, NULL, 0);
315
316 this_device = p_dev;
317 ret = ray_config(p_dev);
318 if (ret)
319 goto err_free_dev;
320
321 return 0;
322
323 err_free_dev:
324 free_netdev(dev);
325 return ret;
326 }
327
ray_detach(struct pcmcia_device * link)328 static void ray_detach(struct pcmcia_device *link)
329 {
330 struct net_device *dev;
331 ray_dev_t *local;
332
333 dev_dbg(&link->dev, "ray_detach\n");
334
335 this_device = NULL;
336 dev = link->priv;
337
338 ray_release(link);
339
340 local = netdev_priv(dev);
341 del_timer_sync(&local->timer);
342
343 if (link->priv) {
344 unregister_netdev(dev);
345 free_netdev(dev);
346 }
347 dev_dbg(&link->dev, "ray_cs ray_detach ending\n");
348 } /* ray_detach */
349
350 #define MAX_TUPLE_SIZE 128
ray_config(struct pcmcia_device * link)351 static int ray_config(struct pcmcia_device *link)
352 {
353 int ret = 0;
354 int i;
355 struct net_device *dev = (struct net_device *)link->priv;
356 ray_dev_t *local = netdev_priv(dev);
357
358 dev_dbg(&link->dev, "ray_config\n");
359
360 /* Determine card type and firmware version */
361 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n",
362 link->prod_id[0] ? link->prod_id[0] : " ",
363 link->prod_id[1] ? link->prod_id[1] : " ",
364 link->prod_id[2] ? link->prod_id[2] : " ",
365 link->prod_id[3] ? link->prod_id[3] : " ");
366
367 /* Now allocate an interrupt line. Note that this does not
368 actually assign a handler to the interrupt.
369 */
370 ret = pcmcia_request_irq(link, ray_interrupt);
371 if (ret)
372 goto failed;
373 dev->irq = link->irq;
374
375 ret = pcmcia_enable_device(link);
376 if (ret)
377 goto failed;
378
379 /*** Set up 32k window for shared memory (transmit and control) ************/
380 link->resource[2]->flags |= WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
381 link->resource[2]->start = 0;
382 link->resource[2]->end = 0x8000;
383 ret = pcmcia_request_window(link, link->resource[2], ray_mem_speed);
384 if (ret)
385 goto failed;
386 ret = pcmcia_map_mem_page(link, link->resource[2], 0);
387 if (ret)
388 goto failed;
389 local->sram = ioremap(link->resource[2]->start,
390 resource_size(link->resource[2]));
391 if (!local->sram)
392 goto failed;
393
394 /*** Set up 16k window for shared memory (receive buffer) ***************/
395 link->resource[3]->flags |=
396 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
397 link->resource[3]->start = 0;
398 link->resource[3]->end = 0x4000;
399 ret = pcmcia_request_window(link, link->resource[3], ray_mem_speed);
400 if (ret)
401 goto failed;
402 ret = pcmcia_map_mem_page(link, link->resource[3], 0x8000);
403 if (ret)
404 goto failed;
405 local->rmem = ioremap(link->resource[3]->start,
406 resource_size(link->resource[3]));
407 if (!local->rmem)
408 goto failed;
409
410 /*** Set up window for attribute memory ***********************************/
411 link->resource[4]->flags |=
412 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
413 link->resource[4]->start = 0;
414 link->resource[4]->end = 0x1000;
415 ret = pcmcia_request_window(link, link->resource[4], ray_mem_speed);
416 if (ret)
417 goto failed;
418 ret = pcmcia_map_mem_page(link, link->resource[4], 0);
419 if (ret)
420 goto failed;
421 local->amem = ioremap(link->resource[4]->start,
422 resource_size(link->resource[4]));
423 if (!local->amem)
424 goto failed;
425
426 dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram);
427 dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem);
428 dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem);
429 if (ray_init(dev) < 0) {
430 ray_release(link);
431 return -ENODEV;
432 }
433
434 SET_NETDEV_DEV(dev, &link->dev);
435 i = register_netdev(dev);
436 if (i != 0) {
437 printk("ray_config register_netdev() failed\n");
438 ray_release(link);
439 return i;
440 }
441
442 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n",
443 dev->name, dev->irq, dev->dev_addr);
444
445 return 0;
446
447 failed:
448 ray_release(link);
449 return -ENODEV;
450 } /* ray_config */
451
ccs_base(ray_dev_t * dev)452 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
453 {
454 return dev->sram + CCS_BASE;
455 }
456
rcs_base(ray_dev_t * dev)457 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
458 {
459 /*
460 * This looks nonsensical, since there is a separate
461 * RCS_BASE. But the difference between a "struct rcs"
462 * and a "struct ccs" ends up being in the _index_ off
463 * the base, so the base pointer is the same for both
464 * ccs/rcs.
465 */
466 return dev->sram + CCS_BASE;
467 }
468
469 /*===========================================================================*/
ray_init(struct net_device * dev)470 static int ray_init(struct net_device *dev)
471 {
472 int i;
473 struct ccs __iomem *pccs;
474 ray_dev_t *local = netdev_priv(dev);
475 struct pcmcia_device *link = local->finder;
476 dev_dbg(&link->dev, "ray_init(0x%p)\n", dev);
477 if (!(pcmcia_dev_present(link))) {
478 dev_dbg(&link->dev, "ray_init - device not present\n");
479 return -1;
480 }
481
482 local->net_type = net_type;
483 local->sta_type = TYPE_STA;
484
485 /* Copy the startup results to local memory */
486 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,
487 sizeof(struct startup_res_6));
488
489 /* Check Power up test status and get mac address from card */
490 if (local->startup_res.startup_word != 0x80) {
491 printk(KERN_INFO "ray_init ERROR card status = %2x\n",
492 local->startup_res.startup_word);
493 local->card_status = CARD_INIT_ERROR;
494 return -1;
495 }
496
497 local->fw_ver = local->startup_res.firmware_version[0];
498 local->fw_bld = local->startup_res.firmware_version[1];
499 local->fw_var = local->startup_res.firmware_version[2];
500 dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver,
501 local->fw_bld);
502
503 local->tib_length = 0x20;
504 if ((local->fw_ver == 5) && (local->fw_bld >= 30))
505 local->tib_length = local->startup_res.tib_length;
506 dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length);
507 /* Initialize CCS's to buffer free state */
508 pccs = ccs_base(local);
509 for (i = 0; i < NUMBER_OF_CCS; i++) {
510 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
511 }
512 init_startup_params(local);
513
514 /* copy mac address to startup parameters */
515 if (!parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) {
516 memcpy(&local->sparm.b4.a_mac_addr,
517 &local->startup_res.station_addr, ADDRLEN);
518 }
519
520 clear_interrupt(local); /* Clear any interrupt from the card */
521 local->card_status = CARD_AWAITING_PARAM;
522 dev_dbg(&link->dev, "ray_init ending\n");
523 return 0;
524 } /* ray_init */
525
526 /*===========================================================================*/
527 /* Download startup parameters to the card and command it to read them */
dl_startup_params(struct net_device * dev)528 static int dl_startup_params(struct net_device *dev)
529 {
530 int ccsindex;
531 ray_dev_t *local = netdev_priv(dev);
532 struct ccs __iomem *pccs;
533 struct pcmcia_device *link = local->finder;
534
535 dev_dbg(&link->dev, "dl_startup_params entered\n");
536 if (!(pcmcia_dev_present(link))) {
537 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n");
538 return -1;
539 }
540
541 /* Copy parameters to host to ECF area */
542 if (local->fw_ver == 0x55)
543 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
544 sizeof(struct b4_startup_params));
545 else
546 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
547 sizeof(struct b5_startup_params));
548
549 /* Fill in the CCS fields for the ECF */
550 if ((ccsindex = get_free_ccs(local)) < 0)
551 return -1;
552 local->dl_param_ccs = ccsindex;
553 pccs = ccs_base(local) + ccsindex;
554 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
555 dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n",
556 local->dl_param_ccs);
557 /* Interrupt the firmware to process the command */
558 if (interrupt_ecf(local, ccsindex)) {
559 printk(KERN_INFO "ray dl_startup_params failed - "
560 "ECF not ready for intr\n");
561 local->card_status = CARD_DL_PARAM_ERROR;
562 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
563 return -2;
564 }
565 local->card_status = CARD_DL_PARAM;
566 /* Start kernel timer to wait for dl startup to complete. */
567 local->timer.expires = jiffies + HZ / 2;
568 local->timer.function = verify_dl_startup;
569 add_timer(&local->timer);
570 dev_dbg(&link->dev,
571 "ray_cs dl_startup_params started timer for verify_dl_startup\n");
572 return 0;
573 } /* dl_startup_params */
574
575 /*===========================================================================*/
init_startup_params(ray_dev_t * local)576 static void init_startup_params(ray_dev_t *local)
577 {
578 int i;
579
580 if (country > JAPAN_TEST)
581 country = USA;
582 else if (country < USA)
583 country = USA;
584 /* structure for hop time and beacon period is defined here using
585 * New 802.11D6.1 format. Card firmware is still using old format
586 * until version 6.
587 * Before After
588 * a_hop_time ms byte a_hop_time ms byte
589 * a_hop_time 2s byte a_hop_time ls byte
590 * a_hop_time ls byte a_beacon_period ms byte
591 * a_beacon_period a_beacon_period ls byte
592 *
593 * a_hop_time = uS a_hop_time = KuS
594 * a_beacon_period = hops a_beacon_period = KuS
595 *//* 64ms = 010000 */
596 if (local->fw_ver == 0x55) {
597 memcpy(&local->sparm.b4, b4_default_startup_parms,
598 sizeof(struct b4_startup_params));
599 /* Translate sane kus input values to old build 4/5 format */
600 /* i = hop time in uS truncated to 3 bytes */
601 i = (hop_dwell * 1024) & 0xffffff;
602 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
603 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
604 local->sparm.b4.a_beacon_period[0] = 0;
605 local->sparm.b4.a_beacon_period[1] =
606 ((beacon_period / hop_dwell) - 1) & 0xff;
607 local->sparm.b4.a_curr_country_code = country;
608 local->sparm.b4.a_hop_pattern_length =
609 hop_pattern_length[(int)country] - 1;
610 if (bc) {
611 local->sparm.b4.a_ack_timeout = 0x50;
612 local->sparm.b4.a_sifs = 0x3f;
613 }
614 } else { /* Version 5 uses real kus values */
615 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms,
616 sizeof(struct b5_startup_params));
617
618 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
619 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
620 local->sparm.b5.a_beacon_period[0] =
621 (beacon_period >> 8) & 0xff;
622 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
623 if (psm)
624 local->sparm.b5.a_power_mgt_state = 1;
625 local->sparm.b5.a_curr_country_code = country;
626 local->sparm.b5.a_hop_pattern_length =
627 hop_pattern_length[(int)country];
628 }
629
630 local->sparm.b4.a_network_type = net_type & 0x01;
631 local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
632
633 if (essid != NULL)
634 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
635 } /* init_startup_params */
636
637 /*===========================================================================*/
verify_dl_startup(struct timer_list * t)638 static void verify_dl_startup(struct timer_list *t)
639 {
640 ray_dev_t *local = from_timer(local, t, timer);
641 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
642 UCHAR status;
643 struct pcmcia_device *link = local->finder;
644
645 if (!(pcmcia_dev_present(link))) {
646 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n");
647 return;
648 }
649 #if 0
650 {
651 int i;
652 printk(KERN_DEBUG
653 "verify_dl_startup parameters sent via ccs %d:\n",
654 local->dl_param_ccs);
655 for (i = 0; i < sizeof(struct b5_startup_params); i++) {
656 printk(" %2x",
657 (unsigned int)readb(local->sram +
658 HOST_TO_ECF_BASE + i));
659 }
660 printk("\n");
661 }
662 #endif
663
664 status = readb(&pccs->buffer_status);
665 if (status != CCS_BUFFER_FREE) {
666 printk(KERN_INFO
667 "Download startup params failed. Status = %d\n",
668 status);
669 local->card_status = CARD_DL_PARAM_ERROR;
670 return;
671 }
672 if (local->sparm.b4.a_network_type == ADHOC)
673 start_net(&local->timer);
674 else
675 join_net(&local->timer);
676 } /* end verify_dl_startup */
677
678 /*===========================================================================*/
679 /* Command card to start a network */
start_net(struct timer_list * t)680 static void start_net(struct timer_list *t)
681 {
682 ray_dev_t *local = from_timer(local, t, timer);
683 struct ccs __iomem *pccs;
684 int ccsindex;
685 struct pcmcia_device *link = local->finder;
686 if (!(pcmcia_dev_present(link))) {
687 dev_dbg(&link->dev, "ray_cs start_net - device not present\n");
688 return;
689 }
690 /* Fill in the CCS fields for the ECF */
691 if ((ccsindex = get_free_ccs(local)) < 0)
692 return;
693 pccs = ccs_base(local) + ccsindex;
694 writeb(CCS_START_NETWORK, &pccs->cmd);
695 writeb(0, &pccs->var.start_network.update_param);
696 /* Interrupt the firmware to process the command */
697 if (interrupt_ecf(local, ccsindex)) {
698 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n");
699 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
700 return;
701 }
702 local->card_status = CARD_DOING_ACQ;
703 } /* end start_net */
704
705 /*===========================================================================*/
706 /* Command card to join a network */
join_net(struct timer_list * t)707 static void join_net(struct timer_list *t)
708 {
709 ray_dev_t *local = from_timer(local, t, timer);
710
711 struct ccs __iomem *pccs;
712 int ccsindex;
713 struct pcmcia_device *link = local->finder;
714
715 if (!(pcmcia_dev_present(link))) {
716 dev_dbg(&link->dev, "ray_cs join_net - device not present\n");
717 return;
718 }
719 /* Fill in the CCS fields for the ECF */
720 if ((ccsindex = get_free_ccs(local)) < 0)
721 return;
722 pccs = ccs_base(local) + ccsindex;
723 writeb(CCS_JOIN_NETWORK, &pccs->cmd);
724 writeb(0, &pccs->var.join_network.update_param);
725 writeb(0, &pccs->var.join_network.net_initiated);
726 /* Interrupt the firmware to process the command */
727 if (interrupt_ecf(local, ccsindex)) {
728 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n");
729 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
730 return;
731 }
732 local->card_status = CARD_DOING_ACQ;
733 }
734
735
ray_release(struct pcmcia_device * link)736 static void ray_release(struct pcmcia_device *link)
737 {
738 struct net_device *dev = link->priv;
739 ray_dev_t *local = netdev_priv(dev);
740
741 dev_dbg(&link->dev, "ray_release\n");
742
743 del_timer(&local->timer);
744
745 iounmap(local->sram);
746 iounmap(local->rmem);
747 iounmap(local->amem);
748 pcmcia_disable_device(link);
749
750 dev_dbg(&link->dev, "ray_release ending\n");
751 }
752
ray_suspend(struct pcmcia_device * link)753 static int ray_suspend(struct pcmcia_device *link)
754 {
755 struct net_device *dev = link->priv;
756
757 if (link->open)
758 netif_device_detach(dev);
759
760 return 0;
761 }
762
ray_resume(struct pcmcia_device * link)763 static int ray_resume(struct pcmcia_device *link)
764 {
765 struct net_device *dev = link->priv;
766
767 if (link->open) {
768 ray_reset(dev);
769 netif_device_attach(dev);
770 }
771
772 return 0;
773 }
774
775 /*===========================================================================*/
ray_dev_init(struct net_device * dev)776 static int ray_dev_init(struct net_device *dev)
777 {
778 #ifdef RAY_IMMEDIATE_INIT
779 int i;
780 #endif /* RAY_IMMEDIATE_INIT */
781 ray_dev_t *local = netdev_priv(dev);
782 struct pcmcia_device *link = local->finder;
783
784 dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev);
785 if (!(pcmcia_dev_present(link))) {
786 dev_dbg(&link->dev, "ray_dev_init - device not present\n");
787 return -1;
788 }
789 #ifdef RAY_IMMEDIATE_INIT
790 /* Download startup parameters */
791 if ((i = dl_startup_params(dev)) < 0) {
792 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
793 "returns 0x%x\n", i);
794 return -1;
795 }
796 #else /* RAY_IMMEDIATE_INIT */
797 /* Postpone the card init so that we can still configure the card,
798 * for example using the Wireless Extensions. The init will happen
799 * in ray_open() - Jean II */
800 dev_dbg(&link->dev,
801 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
802 local->card_status);
803 #endif /* RAY_IMMEDIATE_INIT */
804
805 /* copy mac and broadcast addresses to linux device */
806 memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
807 eth_broadcast_addr(dev->broadcast);
808
809 dev_dbg(&link->dev, "ray_dev_init ending\n");
810 return 0;
811 }
812
813 /*===========================================================================*/
ray_dev_config(struct net_device * dev,struct ifmap * map)814 static int ray_dev_config(struct net_device *dev, struct ifmap *map)
815 {
816 ray_dev_t *local = netdev_priv(dev);
817 struct pcmcia_device *link = local->finder;
818 /* Dummy routine to satisfy device structure */
819 dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map);
820 if (!(pcmcia_dev_present(link))) {
821 dev_dbg(&link->dev, "ray_dev_config - device not present\n");
822 return -1;
823 }
824
825 return 0;
826 }
827
828 /*===========================================================================*/
ray_dev_start_xmit(struct sk_buff * skb,struct net_device * dev)829 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
830 struct net_device *dev)
831 {
832 ray_dev_t *local = netdev_priv(dev);
833 struct pcmcia_device *link = local->finder;
834 short length = skb->len;
835
836 if (!pcmcia_dev_present(link)) {
837 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n");
838 dev_kfree_skb(skb);
839 return NETDEV_TX_OK;
840 }
841
842 dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
843 if (local->authentication_state == NEED_TO_AUTH) {
844 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n");
845 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
846 local->authentication_state = AUTHENTICATED;
847 netif_stop_queue(dev);
848 return NETDEV_TX_BUSY;
849 }
850 }
851
852 if (length < ETH_ZLEN) {
853 if (skb_padto(skb, ETH_ZLEN))
854 return NETDEV_TX_OK;
855 length = ETH_ZLEN;
856 }
857 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) {
858 case XMIT_NO_CCS:
859 case XMIT_NEED_AUTH:
860 netif_stop_queue(dev);
861 return NETDEV_TX_BUSY;
862 case XMIT_NO_INTR:
863 case XMIT_MSG_BAD:
864 case XMIT_OK:
865 default:
866 dev_kfree_skb(skb);
867 }
868
869 return NETDEV_TX_OK;
870 } /* ray_dev_start_xmit */
871
872 /*===========================================================================*/
ray_hw_xmit(unsigned char * data,int len,struct net_device * dev,UCHAR msg_type)873 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
874 UCHAR msg_type)
875 {
876 ray_dev_t *local = netdev_priv(dev);
877 struct ccs __iomem *pccs;
878 int ccsindex;
879 int offset;
880 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */
881 short int addr; /* Address of xmit buffer in card space */
882
883 pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev);
884 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) {
885 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",
886 len);
887 return XMIT_MSG_BAD;
888 }
889 switch (ccsindex = get_free_tx_ccs(local)) {
890 case ECCSBUSY:
891 pr_debug("ray_hw_xmit tx_ccs table busy\n");
892 fallthrough;
893 case ECCSFULL:
894 pr_debug("ray_hw_xmit No free tx ccs\n");
895 fallthrough;
896 case ECARDGONE:
897 netif_stop_queue(dev);
898 return XMIT_NO_CCS;
899 default:
900 break;
901 }
902 addr = TX_BUF_BASE + (ccsindex << 11);
903
904 if (msg_type == DATA_TYPE) {
905 local->stats.tx_bytes += len;
906 local->stats.tx_packets++;
907 }
908
909 ptx = local->sram + addr;
910
911 ray_build_header(local, ptx, msg_type, data);
912 if (translate) {
913 offset = translate_frame(local, ptx, data, len);
914 } else { /* Encapsulate frame */
915 /* TBD TIB length will move address of ptx->var */
916 memcpy_toio(&ptx->var, data, len);
917 offset = 0;
918 }
919
920 /* fill in the CCS */
921 pccs = ccs_base(local) + ccsindex;
922 len += TX_HEADER_LENGTH + offset;
923 writeb(CCS_TX_REQUEST, &pccs->cmd);
924 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
925 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
926 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
927 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
928 /* TBD still need psm_cam? */
929 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
930 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
931 writeb(0, &pccs->var.tx_request.antenna);
932 pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n",
933 local->net_default_tx_rate);
934
935 /* Interrupt the firmware to process the command */
936 if (interrupt_ecf(local, ccsindex)) {
937 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n");
938 /* TBD very inefficient to copy packet to buffer, and then not
939 send it, but the alternative is to queue the messages and that
940 won't be done for a while. Maybe set tbusy until a CCS is free?
941 */
942 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
943 return XMIT_NO_INTR;
944 }
945 return XMIT_OK;
946 } /* end ray_hw_xmit */
947
948 /*===========================================================================*/
translate_frame(ray_dev_t * local,struct tx_msg __iomem * ptx,unsigned char * data,int len)949 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
950 unsigned char *data, int len)
951 {
952 __be16 proto = ((struct ethhdr *)data)->h_proto;
953 if (ntohs(proto) >= ETH_P_802_3_MIN) { /* DIX II ethernet frame */
954 pr_debug("ray_cs translate_frame DIX II\n");
955 /* Copy LLC header to card buffer */
956 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
957 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc),
958 (UCHAR *) &proto, 2);
959 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
960 /* This is the selective translation table, only 2 entries */
961 writeb(0xf8,
962 &((struct snaphdr_t __iomem *)ptx->var)->org[2]);
963 }
964 /* Copy body of ethernet packet without ethernet header */
965 memcpy_toio((void __iomem *)&ptx->var +
966 sizeof(struct snaphdr_t), data + ETH_HLEN,
967 len - ETH_HLEN);
968 return (int)sizeof(struct snaphdr_t) - ETH_HLEN;
969 } else { /* already 802 type, and proto is length */
970 pr_debug("ray_cs translate_frame 802\n");
971 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
972 pr_debug("ray_cs translate_frame evil IPX\n");
973 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
974 return 0 - ETH_HLEN;
975 }
976 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
977 return 0 - ETH_HLEN;
978 }
979 /* TBD do other frame types */
980 } /* end translate_frame */
981
982 /*===========================================================================*/
ray_build_header(ray_dev_t * local,struct tx_msg __iomem * ptx,UCHAR msg_type,unsigned char * data)983 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
984 UCHAR msg_type, unsigned char *data)
985 {
986 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
987 /*** IEEE 802.11 Address field assignments *************
988 TODS FROMDS addr_1 addr_2 addr_3 addr_4
989 Adhoc 0 0 dest src (terminal) BSSID N/A
990 AP to Terminal 0 1 dest AP(BSSID) source N/A
991 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A
992 AP to AP 1 1 dest AP src AP dest source
993 *******************************************************/
994 if (local->net_type == ADHOC) {
995 writeb(0, &ptx->mac.frame_ctl_2);
996 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest,
997 ADDRLEN);
998 memcpy_toio(ptx->mac.addr_2, ((struct ethhdr *)data)->h_source,
999 ADDRLEN);
1000 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
1001 } else { /* infrastructure */
1002
1003 if (local->sparm.b4.a_acting_as_ap_status) {
1004 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
1005 memcpy_toio(ptx->mac.addr_1,
1006 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1007 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
1008 memcpy_toio(ptx->mac.addr_3,
1009 ((struct ethhdr *)data)->h_source, ADDRLEN);
1010 } else { /* Terminal */
1011
1012 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
1013 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1014 memcpy_toio(ptx->mac.addr_2,
1015 ((struct ethhdr *)data)->h_source, ADDRLEN);
1016 memcpy_toio(ptx->mac.addr_3,
1017 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1018 }
1019 }
1020 } /* end encapsulate_frame */
1021
1022 /*====================================================================*/
1023
1024 /*------------------------------------------------------------------*/
1025 /*
1026 * Wireless Handler : get protocol name
1027 */
ray_get_name(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1028 static int ray_get_name(struct net_device *dev, struct iw_request_info *info,
1029 union iwreq_data *wrqu, char *extra)
1030 {
1031 strcpy(wrqu->name, "IEEE 802.11-FH");
1032 return 0;
1033 }
1034
1035 /*------------------------------------------------------------------*/
1036 /*
1037 * Wireless Handler : set frequency
1038 */
ray_set_freq(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1039 static int ray_set_freq(struct net_device *dev, struct iw_request_info *info,
1040 union iwreq_data *wrqu, char *extra)
1041 {
1042 ray_dev_t *local = netdev_priv(dev);
1043 int err = -EINPROGRESS; /* Call commit handler */
1044
1045 /* Reject if card is already initialised */
1046 if (local->card_status != CARD_AWAITING_PARAM)
1047 return -EBUSY;
1048
1049 /* Setting by channel number */
1050 if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0))
1051 err = -EOPNOTSUPP;
1052 else
1053 local->sparm.b5.a_hop_pattern = wrqu->freq.m;
1054
1055 return err;
1056 }
1057
1058 /*------------------------------------------------------------------*/
1059 /*
1060 * Wireless Handler : get frequency
1061 */
ray_get_freq(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1062 static int ray_get_freq(struct net_device *dev, struct iw_request_info *info,
1063 union iwreq_data *wrqu, char *extra)
1064 {
1065 ray_dev_t *local = netdev_priv(dev);
1066
1067 wrqu->freq.m = local->sparm.b5.a_hop_pattern;
1068 wrqu->freq.e = 0;
1069 return 0;
1070 }
1071
1072 /*------------------------------------------------------------------*/
1073 /*
1074 * Wireless Handler : set ESSID
1075 */
ray_set_essid(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1076 static int ray_set_essid(struct net_device *dev, struct iw_request_info *info,
1077 union iwreq_data *wrqu, char *extra)
1078 {
1079 ray_dev_t *local = netdev_priv(dev);
1080
1081 /* Reject if card is already initialised */
1082 if (local->card_status != CARD_AWAITING_PARAM)
1083 return -EBUSY;
1084
1085 /* Check if we asked for `any' */
1086 if (wrqu->essid.flags == 0)
1087 /* Corey : can you do that ? */
1088 return -EOPNOTSUPP;
1089
1090 /* Check the size of the string */
1091 if (wrqu->essid.length > IW_ESSID_MAX_SIZE)
1092 return -E2BIG;
1093
1094 /* Set the ESSID in the card */
1095 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1096 memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length);
1097
1098 return -EINPROGRESS; /* Call commit handler */
1099 }
1100
1101 /*------------------------------------------------------------------*/
1102 /*
1103 * Wireless Handler : get ESSID
1104 */
ray_get_essid(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1105 static int ray_get_essid(struct net_device *dev, struct iw_request_info *info,
1106 union iwreq_data *wrqu, char *extra)
1107 {
1108 ray_dev_t *local = netdev_priv(dev);
1109 UCHAR tmp[IW_ESSID_MAX_SIZE + 1];
1110
1111 /* Get the essid that was set */
1112 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1113 memcpy(tmp, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1114 tmp[IW_ESSID_MAX_SIZE] = '\0';
1115
1116 /* Push it out ! */
1117 wrqu->essid.length = strlen(tmp);
1118 wrqu->essid.flags = 1; /* active */
1119
1120 return 0;
1121 }
1122
1123 /*------------------------------------------------------------------*/
1124 /*
1125 * Wireless Handler : get AP address
1126 */
ray_get_wap(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1127 static int ray_get_wap(struct net_device *dev, struct iw_request_info *info,
1128 union iwreq_data *wrqu, char *extra)
1129 {
1130 ray_dev_t *local = netdev_priv(dev);
1131
1132 memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN);
1133 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1134
1135 return 0;
1136 }
1137
1138 /*------------------------------------------------------------------*/
1139 /*
1140 * Wireless Handler : set Bit-Rate
1141 */
ray_set_rate(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1142 static int ray_set_rate(struct net_device *dev, struct iw_request_info *info,
1143 union iwreq_data *wrqu, char *extra)
1144 {
1145 ray_dev_t *local = netdev_priv(dev);
1146
1147 /* Reject if card is already initialised */
1148 if (local->card_status != CARD_AWAITING_PARAM)
1149 return -EBUSY;
1150
1151 /* Check if rate is in range */
1152 if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000))
1153 return -EINVAL;
1154
1155 /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1156 if ((local->fw_ver == 0x55) && /* Please check */
1157 (wrqu->bitrate.value == 2000000))
1158 local->net_default_tx_rate = 3;
1159 else
1160 local->net_default_tx_rate = wrqu->bitrate.value / 500000;
1161
1162 return 0;
1163 }
1164
1165 /*------------------------------------------------------------------*/
1166 /*
1167 * Wireless Handler : get Bit-Rate
1168 */
ray_get_rate(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1169 static int ray_get_rate(struct net_device *dev, struct iw_request_info *info,
1170 union iwreq_data *wrqu, char *extra)
1171 {
1172 ray_dev_t *local = netdev_priv(dev);
1173
1174 if (local->net_default_tx_rate == 3)
1175 wrqu->bitrate.value = 2000000; /* Hum... */
1176 else
1177 wrqu->bitrate.value = local->net_default_tx_rate * 500000;
1178 wrqu->bitrate.fixed = 0; /* We are in auto mode */
1179
1180 return 0;
1181 }
1182
1183 /*------------------------------------------------------------------*/
1184 /*
1185 * Wireless Handler : set RTS threshold
1186 */
ray_set_rts(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1187 static int ray_set_rts(struct net_device *dev, struct iw_request_info *info,
1188 union iwreq_data *wrqu, char *extra)
1189 {
1190 ray_dev_t *local = netdev_priv(dev);
1191 int rthr = wrqu->rts.value;
1192
1193 /* Reject if card is already initialised */
1194 if (local->card_status != CARD_AWAITING_PARAM)
1195 return -EBUSY;
1196
1197 /* if(wrq->u.rts.fixed == 0) we should complain */
1198 if (wrqu->rts.disabled)
1199 rthr = 32767;
1200 else {
1201 if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */
1202 return -EINVAL;
1203 }
1204 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1205 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1206
1207 return -EINPROGRESS; /* Call commit handler */
1208 }
1209
1210 /*------------------------------------------------------------------*/
1211 /*
1212 * Wireless Handler : get RTS threshold
1213 */
ray_get_rts(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1214 static int ray_get_rts(struct net_device *dev, struct iw_request_info *info,
1215 union iwreq_data *wrqu, char *extra)
1216 {
1217 ray_dev_t *local = netdev_priv(dev);
1218
1219 wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8)
1220 + local->sparm.b5.a_rts_threshold[1];
1221 wrqu->rts.disabled = (wrqu->rts.value == 32767);
1222 wrqu->rts.fixed = 1;
1223
1224 return 0;
1225 }
1226
1227 /*------------------------------------------------------------------*/
1228 /*
1229 * Wireless Handler : set Fragmentation threshold
1230 */
ray_set_frag(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1231 static int ray_set_frag(struct net_device *dev, struct iw_request_info *info,
1232 union iwreq_data *wrqu, char *extra)
1233 {
1234 ray_dev_t *local = netdev_priv(dev);
1235 int fthr = wrqu->frag.value;
1236
1237 /* Reject if card is already initialised */
1238 if (local->card_status != CARD_AWAITING_PARAM)
1239 return -EBUSY;
1240
1241 /* if(wrq->u.frag.fixed == 0) should complain */
1242 if (wrqu->frag.disabled)
1243 fthr = 32767;
1244 else {
1245 if ((fthr < 256) || (fthr > 2347)) /* To check out ! */
1246 return -EINVAL;
1247 }
1248 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1249 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1250
1251 return -EINPROGRESS; /* Call commit handler */
1252 }
1253
1254 /*------------------------------------------------------------------*/
1255 /*
1256 * Wireless Handler : get Fragmentation threshold
1257 */
ray_get_frag(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1258 static int ray_get_frag(struct net_device *dev, struct iw_request_info *info,
1259 union iwreq_data *wrqu, char *extra)
1260 {
1261 ray_dev_t *local = netdev_priv(dev);
1262
1263 wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8)
1264 + local->sparm.b5.a_frag_threshold[1];
1265 wrqu->frag.disabled = (wrqu->frag.value == 32767);
1266 wrqu->frag.fixed = 1;
1267
1268 return 0;
1269 }
1270
1271 /*------------------------------------------------------------------*/
1272 /*
1273 * Wireless Handler : set Mode of Operation
1274 */
ray_set_mode(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1275 static int ray_set_mode(struct net_device *dev, struct iw_request_info *info,
1276 union iwreq_data *wrqu, char *extra)
1277 {
1278 ray_dev_t *local = netdev_priv(dev);
1279 int err = -EINPROGRESS; /* Call commit handler */
1280 char card_mode = 1;
1281
1282 /* Reject if card is already initialised */
1283 if (local->card_status != CARD_AWAITING_PARAM)
1284 return -EBUSY;
1285
1286 switch (wrqu->mode) {
1287 case IW_MODE_ADHOC:
1288 card_mode = 0;
1289 fallthrough;
1290 case IW_MODE_INFRA:
1291 local->sparm.b5.a_network_type = card_mode;
1292 break;
1293 default:
1294 err = -EINVAL;
1295 }
1296
1297 return err;
1298 }
1299
1300 /*------------------------------------------------------------------*/
1301 /*
1302 * Wireless Handler : get Mode of Operation
1303 */
ray_get_mode(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1304 static int ray_get_mode(struct net_device *dev, struct iw_request_info *info,
1305 union iwreq_data *wrqu, char *extra)
1306 {
1307 ray_dev_t *local = netdev_priv(dev);
1308
1309 if (local->sparm.b5.a_network_type)
1310 wrqu->mode = IW_MODE_INFRA;
1311 else
1312 wrqu->mode = IW_MODE_ADHOC;
1313
1314 return 0;
1315 }
1316
1317 /*------------------------------------------------------------------*/
1318 /*
1319 * Wireless Handler : get range info
1320 */
ray_get_range(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1321 static int ray_get_range(struct net_device *dev, struct iw_request_info *info,
1322 union iwreq_data *wrqu, char *extra)
1323 {
1324 struct iw_range *range = (struct iw_range *)extra;
1325
1326 memset(range, 0, sizeof(struct iw_range));
1327
1328 /* Set the length (very important for backward compatibility) */
1329 wrqu->data.length = sizeof(struct iw_range);
1330
1331 /* Set the Wireless Extension versions */
1332 range->we_version_compiled = WIRELESS_EXT;
1333 range->we_version_source = 9;
1334
1335 /* Set information in the range struct */
1336 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */
1337 range->num_channels = hop_pattern_length[(int)country];
1338 range->num_frequency = 0;
1339 range->max_qual.qual = 0;
1340 range->max_qual.level = 255; /* What's the correct value ? */
1341 range->max_qual.noise = 255; /* Idem */
1342 range->num_bitrates = 2;
1343 range->bitrate[0] = 1000000; /* 1 Mb/s */
1344 range->bitrate[1] = 2000000; /* 2 Mb/s */
1345 return 0;
1346 }
1347
1348 /*------------------------------------------------------------------*/
1349 /*
1350 * Wireless Private Handler : set framing mode
1351 */
ray_set_framing(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1352 static int ray_set_framing(struct net_device *dev, struct iw_request_info *info,
1353 union iwreq_data *wrqu, char *extra)
1354 {
1355 translate = !!*(extra); /* Set framing mode */
1356
1357 return 0;
1358 }
1359
1360 /*------------------------------------------------------------------*/
1361 /*
1362 * Wireless Private Handler : get framing mode
1363 */
ray_get_framing(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1364 static int ray_get_framing(struct net_device *dev, struct iw_request_info *info,
1365 union iwreq_data *wrqu, char *extra)
1366 {
1367 *(extra) = translate;
1368
1369 return 0;
1370 }
1371
1372 /*------------------------------------------------------------------*/
1373 /*
1374 * Wireless Private Handler : get country
1375 */
ray_get_country(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1376 static int ray_get_country(struct net_device *dev, struct iw_request_info *info,
1377 union iwreq_data *wrqu, char *extra)
1378 {
1379 *(extra) = country;
1380
1381 return 0;
1382 }
1383
1384 /*------------------------------------------------------------------*/
1385 /*
1386 * Commit handler : called after a bunch of SET operations
1387 */
ray_commit(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)1388 static int ray_commit(struct net_device *dev, struct iw_request_info *info,
1389 union iwreq_data *wrqu, char *extra)
1390 {
1391 return 0;
1392 }
1393
1394 /*------------------------------------------------------------------*/
1395 /*
1396 * Stats handler : return Wireless Stats
1397 */
ray_get_wireless_stats(struct net_device * dev)1398 static iw_stats *ray_get_wireless_stats(struct net_device *dev)
1399 {
1400 ray_dev_t *local = netdev_priv(dev);
1401 struct pcmcia_device *link = local->finder;
1402 struct status __iomem *p = local->sram + STATUS_BASE;
1403
1404 local->wstats.status = local->card_status;
1405 #ifdef WIRELESS_SPY
1406 if ((local->spy_data.spy_number > 0)
1407 && (local->sparm.b5.a_network_type == 0)) {
1408 /* Get it from the first node in spy list */
1409 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1410 local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1411 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1412 local->wstats.qual.updated =
1413 local->spy_data.spy_stat[0].updated;
1414 }
1415 #endif /* WIRELESS_SPY */
1416
1417 if (pcmcia_dev_present(link)) {
1418 local->wstats.qual.noise = readb(&p->rxnoise);
1419 local->wstats.qual.updated |= 4;
1420 }
1421
1422 return &local->wstats;
1423 } /* end ray_get_wireless_stats */
1424
1425 /*------------------------------------------------------------------*/
1426 /*
1427 * Structures to export the Wireless Handlers
1428 */
1429
1430 static const iw_handler ray_handler[] = {
1431 IW_HANDLER(SIOCSIWCOMMIT, ray_commit),
1432 IW_HANDLER(SIOCGIWNAME, ray_get_name),
1433 IW_HANDLER(SIOCSIWFREQ, ray_set_freq),
1434 IW_HANDLER(SIOCGIWFREQ, ray_get_freq),
1435 IW_HANDLER(SIOCSIWMODE, ray_set_mode),
1436 IW_HANDLER(SIOCGIWMODE, ray_get_mode),
1437 IW_HANDLER(SIOCGIWRANGE, ray_get_range),
1438 #ifdef WIRELESS_SPY
1439 IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1440 IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1441 IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1442 IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1443 #endif /* WIRELESS_SPY */
1444 IW_HANDLER(SIOCGIWAP, ray_get_wap),
1445 IW_HANDLER(SIOCSIWESSID, ray_set_essid),
1446 IW_HANDLER(SIOCGIWESSID, ray_get_essid),
1447 IW_HANDLER(SIOCSIWRATE, ray_set_rate),
1448 IW_HANDLER(SIOCGIWRATE, ray_get_rate),
1449 IW_HANDLER(SIOCSIWRTS, ray_set_rts),
1450 IW_HANDLER(SIOCGIWRTS, ray_get_rts),
1451 IW_HANDLER(SIOCSIWFRAG, ray_set_frag),
1452 IW_HANDLER(SIOCGIWFRAG, ray_get_frag),
1453 };
1454
1455 #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */
1456 #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */
1457 #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */
1458
1459 static const iw_handler ray_private_handler[] = {
1460 [0] = ray_set_framing,
1461 [1] = ray_get_framing,
1462 [3] = ray_get_country,
1463 };
1464
1465 static const struct iw_priv_args ray_private_args[] = {
1466 /* cmd, set_args, get_args, name */
1467 {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0,
1468 "set_framing"},
1469 {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1470 "get_framing"},
1471 {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1472 "get_country"},
1473 };
1474
1475 static const struct iw_handler_def ray_handler_def = {
1476 .num_standard = ARRAY_SIZE(ray_handler),
1477 .num_private = ARRAY_SIZE(ray_private_handler),
1478 .num_private_args = ARRAY_SIZE(ray_private_args),
1479 .standard = ray_handler,
1480 .private = ray_private_handler,
1481 .private_args = ray_private_args,
1482 .get_wireless_stats = ray_get_wireless_stats,
1483 };
1484
1485 /*===========================================================================*/
ray_open(struct net_device * dev)1486 static int ray_open(struct net_device *dev)
1487 {
1488 ray_dev_t *local = netdev_priv(dev);
1489 struct pcmcia_device *link;
1490 link = local->finder;
1491
1492 dev_dbg(&link->dev, "ray_open('%s')\n", dev->name);
1493
1494 if (link->open == 0)
1495 local->num_multi = 0;
1496 link->open++;
1497
1498 /* If the card is not started, time to start it ! - Jean II */
1499 if (local->card_status == CARD_AWAITING_PARAM) {
1500 int i;
1501
1502 dev_dbg(&link->dev, "ray_open: doing init now !\n");
1503
1504 /* Download startup parameters */
1505 if ((i = dl_startup_params(dev)) < 0) {
1506 printk(KERN_INFO
1507 "ray_dev_init dl_startup_params failed - "
1508 "returns 0x%x\n", i);
1509 return -1;
1510 }
1511 }
1512
1513 if (sniffer)
1514 netif_stop_queue(dev);
1515 else
1516 netif_start_queue(dev);
1517
1518 dev_dbg(&link->dev, "ray_open ending\n");
1519 return 0;
1520 } /* end ray_open */
1521
1522 /*===========================================================================*/
ray_dev_close(struct net_device * dev)1523 static int ray_dev_close(struct net_device *dev)
1524 {
1525 ray_dev_t *local = netdev_priv(dev);
1526 struct pcmcia_device *link;
1527 link = local->finder;
1528
1529 dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name);
1530
1531 link->open--;
1532 netif_stop_queue(dev);
1533
1534 /* In here, we should stop the hardware (stop card from beeing active)
1535 * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1536 * card is closed we can chage its configuration.
1537 * Probably also need a COR reset to get sane state - Jean II */
1538
1539 return 0;
1540 } /* end ray_dev_close */
1541
1542 /*===========================================================================*/
ray_reset(struct net_device * dev)1543 static void ray_reset(struct net_device *dev)
1544 {
1545 pr_debug("ray_reset entered\n");
1546 }
1547
1548 /*===========================================================================*/
1549 /* Cause a firmware interrupt if it is ready for one */
1550 /* Return nonzero if not ready */
interrupt_ecf(ray_dev_t * local,int ccs)1551 static int interrupt_ecf(ray_dev_t *local, int ccs)
1552 {
1553 int i = 50;
1554 struct pcmcia_device *link = local->finder;
1555
1556 if (!(pcmcia_dev_present(link))) {
1557 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n");
1558 return -1;
1559 }
1560 dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs);
1561
1562 while (i &&
1563 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) &
1564 ECF_INTR_SET))
1565 i--;
1566 if (i == 0) {
1567 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n");
1568 return -1;
1569 }
1570 /* Fill the mailbox, then kick the card */
1571 writeb(ccs, local->sram + SCB_BASE);
1572 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1573 return 0;
1574 } /* interrupt_ecf */
1575
1576 /*===========================================================================*/
1577 /* Get next free transmit CCS */
1578 /* Return - index of current tx ccs */
get_free_tx_ccs(ray_dev_t * local)1579 static int get_free_tx_ccs(ray_dev_t *local)
1580 {
1581 int i;
1582 struct ccs __iomem *pccs = ccs_base(local);
1583 struct pcmcia_device *link = local->finder;
1584
1585 if (!(pcmcia_dev_present(link))) {
1586 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n");
1587 return ECARDGONE;
1588 }
1589
1590 if (test_and_set_bit(0, &local->tx_ccs_lock)) {
1591 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n");
1592 return ECCSBUSY;
1593 }
1594
1595 for (i = 0; i < NUMBER_OF_TX_CCS; i++) {
1596 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1597 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1598 writeb(CCS_END_LIST, &(pccs + i)->link);
1599 local->tx_ccs_lock = 0;
1600 return i;
1601 }
1602 }
1603 local->tx_ccs_lock = 0;
1604 dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n");
1605 return ECCSFULL;
1606 } /* get_free_tx_ccs */
1607
1608 /*===========================================================================*/
1609 /* Get next free CCS */
1610 /* Return - index of current ccs */
get_free_ccs(ray_dev_t * local)1611 static int get_free_ccs(ray_dev_t *local)
1612 {
1613 int i;
1614 struct ccs __iomem *pccs = ccs_base(local);
1615 struct pcmcia_device *link = local->finder;
1616
1617 if (!(pcmcia_dev_present(link))) {
1618 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n");
1619 return ECARDGONE;
1620 }
1621 if (test_and_set_bit(0, &local->ccs_lock)) {
1622 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n");
1623 return ECCSBUSY;
1624 }
1625
1626 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1627 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1628 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1629 writeb(CCS_END_LIST, &(pccs + i)->link);
1630 local->ccs_lock = 0;
1631 return i;
1632 }
1633 }
1634 local->ccs_lock = 0;
1635 dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n");
1636 return ECCSFULL;
1637 } /* get_free_ccs */
1638
1639 /*===========================================================================*/
authenticate_timeout(struct timer_list * t)1640 static void authenticate_timeout(struct timer_list *t)
1641 {
1642 ray_dev_t *local = from_timer(local, t, timer);
1643 del_timer(&local->timer);
1644 printk(KERN_INFO "ray_cs Authentication with access point failed"
1645 " - timeout\n");
1646 join_net(&local->timer);
1647 }
1648
1649 /*===========================================================================*/
parse_addr(char * in_str,UCHAR * out)1650 static int parse_addr(char *in_str, UCHAR *out)
1651 {
1652 int i, k;
1653 int len;
1654
1655 if (in_str == NULL)
1656 return 0;
1657 len = strnlen(in_str, ADDRLEN * 2 + 1) - 1;
1658 if (len < 1)
1659 return 0;
1660 memset(out, 0, ADDRLEN);
1661
1662 i = 5;
1663
1664 while (len > 0) {
1665 if ((k = hex_to_bin(in_str[len--])) != -1)
1666 out[i] = k;
1667 else
1668 return 0;
1669
1670 if (len == 0)
1671 break;
1672 if ((k = hex_to_bin(in_str[len--])) != -1)
1673 out[i] += k << 4;
1674 else
1675 return 0;
1676 if (!i--)
1677 break;
1678 }
1679 return 1;
1680 }
1681
1682 /*===========================================================================*/
ray_get_stats(struct net_device * dev)1683 static struct net_device_stats *ray_get_stats(struct net_device *dev)
1684 {
1685 ray_dev_t *local = netdev_priv(dev);
1686 struct pcmcia_device *link = local->finder;
1687 struct status __iomem *p = local->sram + STATUS_BASE;
1688 if (!(pcmcia_dev_present(link))) {
1689 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n");
1690 return &local->stats;
1691 }
1692 if (readb(&p->mrx_overflow_for_host)) {
1693 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1694 writeb(0, &p->mrx_overflow);
1695 writeb(0, &p->mrx_overflow_for_host);
1696 }
1697 if (readb(&p->mrx_checksum_error_for_host)) {
1698 local->stats.rx_crc_errors +=
1699 swab16(readw(&p->mrx_checksum_error));
1700 writeb(0, &p->mrx_checksum_error);
1701 writeb(0, &p->mrx_checksum_error_for_host);
1702 }
1703 if (readb(&p->rx_hec_error_for_host)) {
1704 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1705 writeb(0, &p->rx_hec_error);
1706 writeb(0, &p->rx_hec_error_for_host);
1707 }
1708 return &local->stats;
1709 }
1710
1711 /*===========================================================================*/
ray_update_parm(struct net_device * dev,UCHAR objid,UCHAR * value,int len)1712 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value,
1713 int len)
1714 {
1715 ray_dev_t *local = netdev_priv(dev);
1716 struct pcmcia_device *link = local->finder;
1717 int ccsindex;
1718 int i;
1719 struct ccs __iomem *pccs;
1720
1721 if (!(pcmcia_dev_present(link))) {
1722 dev_dbg(&link->dev, "ray_update_parm - device not present\n");
1723 return;
1724 }
1725
1726 if ((ccsindex = get_free_ccs(local)) < 0) {
1727 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n");
1728 return;
1729 }
1730 pccs = ccs_base(local) + ccsindex;
1731 writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1732 writeb(objid, &pccs->var.update_param.object_id);
1733 writeb(1, &pccs->var.update_param.number_objects);
1734 writeb(0, &pccs->var.update_param.failure_cause);
1735 for (i = 0; i < len; i++) {
1736 writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1737 }
1738 /* Interrupt the firmware to process the command */
1739 if (interrupt_ecf(local, ccsindex)) {
1740 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
1741 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1742 }
1743 }
1744
1745 /*===========================================================================*/
ray_update_multi_list(struct net_device * dev,int all)1746 static void ray_update_multi_list(struct net_device *dev, int all)
1747 {
1748 int ccsindex;
1749 struct ccs __iomem *pccs;
1750 ray_dev_t *local = netdev_priv(dev);
1751 struct pcmcia_device *link = local->finder;
1752 void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1753
1754 if (!(pcmcia_dev_present(link))) {
1755 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n");
1756 return;
1757 } else
1758 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev);
1759 if ((ccsindex = get_free_ccs(local)) < 0) {
1760 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n");
1761 return;
1762 }
1763 pccs = ccs_base(local) + ccsindex;
1764 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1765
1766 if (all) {
1767 writeb(0xff, &pccs->var);
1768 local->num_multi = 0xff;
1769 } else {
1770 struct netdev_hw_addr *ha;
1771 int i = 0;
1772
1773 /* Copy the kernel's list of MC addresses to card */
1774 netdev_for_each_mc_addr(ha, dev) {
1775 memcpy_toio(p, ha->addr, ETH_ALEN);
1776 dev_dbg(&link->dev, "ray_update_multi add addr %pm\n",
1777 ha->addr);
1778 p += ETH_ALEN;
1779 i++;
1780 }
1781 if (i > 256 / ADDRLEN)
1782 i = 256 / ADDRLEN;
1783 writeb((UCHAR) i, &pccs->var);
1784 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i);
1785 /* Interrupt the firmware to process the command */
1786 local->num_multi = i;
1787 }
1788 if (interrupt_ecf(local, ccsindex)) {
1789 dev_dbg(&link->dev,
1790 "ray_cs update_multi failed - ECF not ready for intr\n");
1791 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1792 }
1793 } /* end ray_update_multi_list */
1794
1795 /*===========================================================================*/
set_multicast_list(struct net_device * dev)1796 static void set_multicast_list(struct net_device *dev)
1797 {
1798 ray_dev_t *local = netdev_priv(dev);
1799 UCHAR promisc;
1800
1801 pr_debug("ray_cs set_multicast_list(%p)\n", dev);
1802
1803 if (dev->flags & IFF_PROMISC) {
1804 if (local->sparm.b5.a_promiscuous_mode == 0) {
1805 pr_debug("ray_cs set_multicast_list promisc on\n");
1806 local->sparm.b5.a_promiscuous_mode = 1;
1807 promisc = 1;
1808 ray_update_parm(dev, OBJID_promiscuous_mode,
1809 &promisc, sizeof(promisc));
1810 }
1811 } else {
1812 if (local->sparm.b5.a_promiscuous_mode == 1) {
1813 pr_debug("ray_cs set_multicast_list promisc off\n");
1814 local->sparm.b5.a_promiscuous_mode = 0;
1815 promisc = 0;
1816 ray_update_parm(dev, OBJID_promiscuous_mode,
1817 &promisc, sizeof(promisc));
1818 }
1819 }
1820
1821 if (dev->flags & IFF_ALLMULTI)
1822 ray_update_multi_list(dev, 1);
1823 else {
1824 if (local->num_multi != netdev_mc_count(dev))
1825 ray_update_multi_list(dev, 0);
1826 }
1827 } /* end set_multicast_list */
1828
1829 /*=============================================================================
1830 * All routines below here are run at interrupt time.
1831 =============================================================================*/
ray_interrupt(int irq,void * dev_id)1832 static irqreturn_t ray_interrupt(int irq, void *dev_id)
1833 {
1834 struct net_device *dev = (struct net_device *)dev_id;
1835 struct pcmcia_device *link;
1836 ray_dev_t *local;
1837 struct ccs __iomem *pccs;
1838 struct rcs __iomem *prcs;
1839 UCHAR rcsindex;
1840 UCHAR tmp;
1841 UCHAR cmd;
1842 UCHAR status;
1843 UCHAR memtmp[ESSID_SIZE + 1];
1844
1845
1846 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */
1847 return IRQ_NONE;
1848
1849 pr_debug("ray_cs: interrupt for *dev=%p\n", dev);
1850
1851 local = netdev_priv(dev);
1852 link = local->finder;
1853 if (!pcmcia_dev_present(link)) {
1854 pr_debug(
1855 "ray_cs interrupt from device not present or suspended.\n");
1856 return IRQ_NONE;
1857 }
1858 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1859
1860 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
1861 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex);
1862 clear_interrupt(local);
1863 return IRQ_HANDLED;
1864 }
1865 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */
1866 pccs = ccs_base(local) + rcsindex;
1867 cmd = readb(&pccs->cmd);
1868 status = readb(&pccs->buffer_status);
1869 switch (cmd) {
1870 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */
1871 del_timer(&local->timer);
1872 if (status == CCS_COMMAND_COMPLETE) {
1873 dev_dbg(&link->dev,
1874 "ray_cs interrupt download_startup_parameters OK\n");
1875 } else {
1876 dev_dbg(&link->dev,
1877 "ray_cs interrupt download_startup_parameters fail\n");
1878 }
1879 break;
1880 case CCS_UPDATE_PARAMS:
1881 dev_dbg(&link->dev, "ray_cs interrupt update params done\n");
1882 if (status != CCS_COMMAND_COMPLETE) {
1883 tmp =
1884 readb(&pccs->var.update_param.
1885 failure_cause);
1886 dev_dbg(&link->dev,
1887 "ray_cs interrupt update params failed - reason %d\n",
1888 tmp);
1889 }
1890 break;
1891 case CCS_REPORT_PARAMS:
1892 dev_dbg(&link->dev, "ray_cs interrupt report params done\n");
1893 break;
1894 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
1895 dev_dbg(&link->dev,
1896 "ray_cs interrupt CCS Update Multicast List done\n");
1897 break;
1898 case CCS_UPDATE_POWER_SAVINGS_MODE:
1899 dev_dbg(&link->dev,
1900 "ray_cs interrupt update power save mode done\n");
1901 break;
1902 case CCS_START_NETWORK:
1903 case CCS_JOIN_NETWORK:
1904 memcpy(memtmp, local->sparm.b4.a_current_ess_id,
1905 ESSID_SIZE);
1906 memtmp[ESSID_SIZE] = '\0';
1907
1908 if (status == CCS_COMMAND_COMPLETE) {
1909 if (readb
1910 (&pccs->var.start_network.net_initiated) ==
1911 1) {
1912 dev_dbg(&link->dev,
1913 "ray_cs interrupt network \"%s\" started\n",
1914 memtmp);
1915 } else {
1916 dev_dbg(&link->dev,
1917 "ray_cs interrupt network \"%s\" joined\n",
1918 memtmp);
1919 }
1920 memcpy_fromio(&local->bss_id,
1921 pccs->var.start_network.bssid,
1922 ADDRLEN);
1923
1924 if (local->fw_ver == 0x55)
1925 local->net_default_tx_rate = 3;
1926 else
1927 local->net_default_tx_rate =
1928 readb(&pccs->var.start_network.
1929 net_default_tx_rate);
1930 local->encryption =
1931 readb(&pccs->var.start_network.encryption);
1932 if (!sniffer && (local->net_type == INFRA)
1933 && !(local->sparm.b4.a_acting_as_ap_status)) {
1934 authenticate(local);
1935 }
1936 local->card_status = CARD_ACQ_COMPLETE;
1937 } else {
1938 local->card_status = CARD_ACQ_FAILED;
1939
1940 del_timer(&local->timer);
1941 local->timer.expires = jiffies + HZ * 5;
1942 if (status == CCS_START_NETWORK) {
1943 dev_dbg(&link->dev,
1944 "ray_cs interrupt network \"%s\" start failed\n",
1945 memtmp);
1946 local->timer.function = start_net;
1947 } else {
1948 dev_dbg(&link->dev,
1949 "ray_cs interrupt network \"%s\" join failed\n",
1950 memtmp);
1951 local->timer.function = join_net;
1952 }
1953 add_timer(&local->timer);
1954 }
1955 break;
1956 case CCS_START_ASSOCIATION:
1957 if (status == CCS_COMMAND_COMPLETE) {
1958 local->card_status = CARD_ASSOC_COMPLETE;
1959 dev_dbg(&link->dev, "ray_cs association successful\n");
1960 } else {
1961 dev_dbg(&link->dev, "ray_cs association failed,\n");
1962 local->card_status = CARD_ASSOC_FAILED;
1963 join_net(&local->timer);
1964 }
1965 break;
1966 case CCS_TX_REQUEST:
1967 if (status == CCS_COMMAND_COMPLETE) {
1968 dev_dbg(&link->dev,
1969 "ray_cs interrupt tx request complete\n");
1970 } else {
1971 dev_dbg(&link->dev,
1972 "ray_cs interrupt tx request failed\n");
1973 }
1974 if (!sniffer)
1975 netif_start_queue(dev);
1976 netif_wake_queue(dev);
1977 break;
1978 case CCS_TEST_MEMORY:
1979 dev_dbg(&link->dev, "ray_cs interrupt mem test done\n");
1980 break;
1981 case CCS_SHUTDOWN:
1982 dev_dbg(&link->dev,
1983 "ray_cs interrupt Unexpected CCS returned - Shutdown\n");
1984 break;
1985 case CCS_DUMP_MEMORY:
1986 dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n");
1987 break;
1988 case CCS_START_TIMER:
1989 dev_dbg(&link->dev,
1990 "ray_cs interrupt DING - raylink timer expired\n");
1991 break;
1992 default:
1993 dev_dbg(&link->dev,
1994 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",
1995 rcsindex, cmd);
1996 }
1997 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
1998 } else { /* It's an RCS */
1999
2000 prcs = rcs_base(local) + rcsindex;
2001
2002 switch (readb(&prcs->interrupt_id)) {
2003 case PROCESS_RX_PACKET:
2004 ray_rx(dev, local, prcs);
2005 break;
2006 case REJOIN_NET_COMPLETE:
2007 dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n");
2008 local->card_status = CARD_ACQ_COMPLETE;
2009 /* do we need to clear tx buffers CCS's? */
2010 if (local->sparm.b4.a_network_type == ADHOC) {
2011 if (!sniffer)
2012 netif_start_queue(dev);
2013 } else {
2014 memcpy_fromio(&local->bss_id,
2015 prcs->var.rejoin_net_complete.
2016 bssid, ADDRLEN);
2017 dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n",
2018 local->bss_id);
2019 if (!sniffer)
2020 authenticate(local);
2021 }
2022 break;
2023 case ROAMING_INITIATED:
2024 dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n");
2025 netif_stop_queue(dev);
2026 local->card_status = CARD_DOING_ACQ;
2027 break;
2028 case JAPAN_CALL_SIGN_RXD:
2029 dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n");
2030 break;
2031 default:
2032 dev_dbg(&link->dev,
2033 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",
2034 rcsindex,
2035 (unsigned int)readb(&prcs->interrupt_id));
2036 break;
2037 }
2038 writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2039 }
2040 clear_interrupt(local);
2041 return IRQ_HANDLED;
2042 } /* ray_interrupt */
2043
2044 /*===========================================================================*/
ray_rx(struct net_device * dev,ray_dev_t * local,struct rcs __iomem * prcs)2045 static void ray_rx(struct net_device *dev, ray_dev_t *local,
2046 struct rcs __iomem *prcs)
2047 {
2048 int rx_len;
2049 unsigned int pkt_addr;
2050 void __iomem *pmsg;
2051 pr_debug("ray_rx process rx packet\n");
2052
2053 /* Calculate address of packet within Rx buffer */
2054 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2055 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2056 /* Length of first packet fragment */
2057 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2058 + readb(&prcs->var.rx_packet.rx_data_length[1]);
2059
2060 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2061 pmsg = local->rmem + pkt_addr;
2062 switch (readb(pmsg)) {
2063 case DATA_TYPE:
2064 pr_debug("ray_rx data type\n");
2065 rx_data(dev, prcs, pkt_addr, rx_len);
2066 break;
2067 case AUTHENTIC_TYPE:
2068 pr_debug("ray_rx authentic type\n");
2069 if (sniffer)
2070 rx_data(dev, prcs, pkt_addr, rx_len);
2071 else
2072 rx_authenticate(local, prcs, pkt_addr, rx_len);
2073 break;
2074 case DEAUTHENTIC_TYPE:
2075 pr_debug("ray_rx deauth type\n");
2076 if (sniffer)
2077 rx_data(dev, prcs, pkt_addr, rx_len);
2078 else
2079 rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2080 break;
2081 case NULL_MSG_TYPE:
2082 pr_debug("ray_cs rx NULL msg\n");
2083 break;
2084 case BEACON_TYPE:
2085 pr_debug("ray_rx beacon type\n");
2086 if (sniffer)
2087 rx_data(dev, prcs, pkt_addr, rx_len);
2088
2089 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr,
2090 rx_len < sizeof(struct beacon_rx) ?
2091 rx_len : sizeof(struct beacon_rx));
2092
2093 local->beacon_rxed = 1;
2094 /* Get the statistics so the card counters never overflow */
2095 ray_get_stats(dev);
2096 break;
2097 default:
2098 pr_debug("ray_cs unknown pkt type %2x\n",
2099 (unsigned int)readb(pmsg));
2100 break;
2101 }
2102
2103 } /* end ray_rx */
2104
2105 /*===========================================================================*/
rx_data(struct net_device * dev,struct rcs __iomem * prcs,unsigned int pkt_addr,int rx_len)2106 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
2107 unsigned int pkt_addr, int rx_len)
2108 {
2109 struct sk_buff *skb = NULL;
2110 struct rcs __iomem *prcslink = prcs;
2111 ray_dev_t *local = netdev_priv(dev);
2112 UCHAR *rx_ptr;
2113 int total_len;
2114 int tmp;
2115 #ifdef WIRELESS_SPY
2116 int siglev = local->last_rsl;
2117 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */
2118 #endif
2119
2120 if (!sniffer) {
2121 if (translate) {
2122 /* TBD length needs fixing for translated header */
2123 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2124 rx_len >
2125 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2126 FCS_LEN)) {
2127 pr_debug(
2128 "ray_cs invalid packet length %d received\n",
2129 rx_len);
2130 return;
2131 }
2132 } else { /* encapsulated ethernet */
2133
2134 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2135 rx_len >
2136 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2137 FCS_LEN)) {
2138 pr_debug(
2139 "ray_cs invalid packet length %d received\n",
2140 rx_len);
2141 return;
2142 }
2143 }
2144 }
2145 pr_debug("ray_cs rx_data packet\n");
2146 /* If fragmented packet, verify sizes of fragments add up */
2147 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2148 pr_debug("ray_cs rx'ed fragment\n");
2149 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2150 + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2151 total_len = tmp;
2152 prcslink = prcs;
2153 do {
2154 tmp -=
2155 (readb(&prcslink->var.rx_packet.rx_data_length[0])
2156 << 8)
2157 + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2158 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index)
2159 == 0xFF || tmp < 0)
2160 break;
2161 prcslink = rcs_base(local)
2162 + readb(&prcslink->link_field);
2163 } while (1);
2164
2165 if (tmp < 0) {
2166 pr_debug(
2167 "ray_cs rx_data fragment lengths don't add up\n");
2168 local->stats.rx_dropped++;
2169 release_frag_chain(local, prcs);
2170 return;
2171 }
2172 } else { /* Single unfragmented packet */
2173 total_len = rx_len;
2174 }
2175
2176 skb = dev_alloc_skb(total_len + 5);
2177 if (skb == NULL) {
2178 pr_debug("ray_cs rx_data could not allocate skb\n");
2179 local->stats.rx_dropped++;
2180 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2181 release_frag_chain(local, prcs);
2182 return;
2183 }
2184 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */
2185
2186 pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len,
2187 rx_len);
2188
2189 /************************/
2190 /* Reserve enough room for the whole damn packet. */
2191 rx_ptr = skb_put(skb, total_len);
2192 /* Copy the whole packet to sk_buff */
2193 rx_ptr +=
2194 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2195 /* Get source address */
2196 #ifdef WIRELESS_SPY
2197 skb_copy_from_linear_data_offset(skb,
2198 offsetof(struct mac_header, addr_2),
2199 linksrcaddr, ETH_ALEN);
2200 #endif
2201 /* Now, deal with encapsulation/translation/sniffer */
2202 if (!sniffer) {
2203 if (!translate) {
2204 /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2205 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2206 skb_pull(skb, RX_MAC_HEADER_LENGTH);
2207 } else {
2208 /* Do translation */
2209 untranslate(local, skb, total_len);
2210 }
2211 } else { /* sniffer mode, so just pass whole packet */
2212 }
2213
2214 /************************/
2215 /* Now pick up the rest of the fragments if any */
2216 tmp = 17;
2217 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2218 prcslink = prcs;
2219 pr_debug("ray_cs rx_data in fragment loop\n");
2220 do {
2221 prcslink = rcs_base(local)
2222 +
2223 readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2224 rx_len =
2225 ((readb(&prcslink->var.rx_packet.rx_data_length[0])
2226 << 8)
2227 +
2228 readb(&prcslink->var.rx_packet.rx_data_length[1]))
2229 & RX_BUFF_END;
2230 pkt_addr =
2231 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) <<
2232 8)
2233 + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2234 & RX_BUFF_END;
2235
2236 rx_ptr +=
2237 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2238
2239 } while (tmp-- &&
2240 readb(&prcslink->var.rx_packet.next_frag_rcs_index) !=
2241 0xFF);
2242 release_frag_chain(local, prcs);
2243 }
2244
2245 skb->protocol = eth_type_trans(skb, dev);
2246 netif_rx(skb);
2247 local->stats.rx_packets++;
2248 local->stats.rx_bytes += total_len;
2249
2250 /* Gather signal strength per address */
2251 #ifdef WIRELESS_SPY
2252 /* For the Access Point or the node having started the ad-hoc net
2253 * note : ad-hoc work only in some specific configurations, but we
2254 * kludge in ray_get_wireless_stats... */
2255 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) {
2256 /* Update statistics */
2257 /*local->wstats.qual.qual = none ? */
2258 local->wstats.qual.level = siglev;
2259 /*local->wstats.qual.noise = none ? */
2260 local->wstats.qual.updated = 0x2;
2261 }
2262 /* Now, update the spy stuff */
2263 {
2264 struct iw_quality wstats;
2265 wstats.level = siglev;
2266 /* wstats.noise = none ? */
2267 /* wstats.qual = none ? */
2268 wstats.updated = 0x2;
2269 /* Update spy records */
2270 wireless_spy_update(dev, linksrcaddr, &wstats);
2271 }
2272 #endif /* WIRELESS_SPY */
2273 } /* end rx_data */
2274
2275 /*===========================================================================*/
untranslate(ray_dev_t * local,struct sk_buff * skb,int len)2276 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2277 {
2278 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH);
2279 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2280 __be16 type = *(__be16 *) psnap->ethertype;
2281 int delta;
2282 struct ethhdr *peth;
2283 UCHAR srcaddr[ADDRLEN];
2284 UCHAR destaddr[ADDRLEN];
2285 static const UCHAR org_bridge[3] = { 0, 0, 0xf8 };
2286 static const UCHAR org_1042[3] = { 0, 0, 0 };
2287
2288 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2289 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2290
2291 #if 0
2292 if {
2293 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
2294 DUMP_PREFIX_NONE, 16, 1,
2295 skb->data, 64, true);
2296 printk(KERN_DEBUG
2297 "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2298 ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
2299 psnap->org[0], psnap->org[1], psnap->org[2]);
2300 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data);
2301 }
2302 #endif
2303
2304 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2305 /* not a snap type so leave it alone */
2306 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2307 psnap->dsap, psnap->ssap, psnap->ctrl);
2308
2309 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2310 peth = (struct ethhdr *)(skb->data + delta);
2311 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2312 } else { /* Its a SNAP */
2313 if (memcmp(psnap->org, org_bridge, 3) == 0) {
2314 /* EtherII and nuke the LLC */
2315 pr_debug("ray_cs untranslate Bridge encap\n");
2316 delta = RX_MAC_HEADER_LENGTH
2317 + sizeof(struct snaphdr_t) - ETH_HLEN;
2318 peth = (struct ethhdr *)(skb->data + delta);
2319 peth->h_proto = type;
2320 } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2321 switch (ntohs(type)) {
2322 case ETH_P_IPX:
2323 case ETH_P_AARP:
2324 pr_debug("ray_cs untranslate RFC IPX/AARP\n");
2325 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2326 peth = (struct ethhdr *)(skb->data + delta);
2327 peth->h_proto =
2328 htons(len - RX_MAC_HEADER_LENGTH);
2329 break;
2330 default:
2331 pr_debug("ray_cs untranslate RFC default\n");
2332 delta = RX_MAC_HEADER_LENGTH +
2333 sizeof(struct snaphdr_t) - ETH_HLEN;
2334 peth = (struct ethhdr *)(skb->data + delta);
2335 peth->h_proto = type;
2336 break;
2337 }
2338 } else {
2339 printk("ray_cs untranslate very confused by packet\n");
2340 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2341 peth = (struct ethhdr *)(skb->data + delta);
2342 peth->h_proto = type;
2343 }
2344 }
2345 /* TBD reserve skb_reserve(skb, delta); */
2346 skb_pull(skb, delta);
2347 pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta,
2348 skb->data);
2349 memcpy(peth->h_dest, destaddr, ADDRLEN);
2350 memcpy(peth->h_source, srcaddr, ADDRLEN);
2351 #if 0
2352 {
2353 int i;
2354 printk(KERN_DEBUG "skb->data after untranslate:");
2355 for (i = 0; i < 64; i++)
2356 printk("%02x ", skb->data[i]);
2357 printk("\n");
2358 }
2359 #endif
2360 } /* end untranslate */
2361
2362 /*===========================================================================*/
2363 /* Copy data from circular receive buffer to PC memory.
2364 * dest = destination address in PC memory
2365 * pkt_addr = source address in receive buffer
2366 * len = length of packet to copy
2367 */
copy_from_rx_buff(ray_dev_t * local,UCHAR * dest,int pkt_addr,int length)2368 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr,
2369 int length)
2370 {
2371 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2372 if (wrap_bytes <= 0) {
2373 memcpy_fromio(dest, local->rmem + pkt_addr, length);
2374 } else { /* Packet wrapped in circular buffer */
2375
2376 memcpy_fromio(dest, local->rmem + pkt_addr,
2377 length - wrap_bytes);
2378 memcpy_fromio(dest + length - wrap_bytes, local->rmem,
2379 wrap_bytes);
2380 }
2381 return length;
2382 }
2383
2384 /*===========================================================================*/
release_frag_chain(ray_dev_t * local,struct rcs __iomem * prcs)2385 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs)
2386 {
2387 struct rcs __iomem *prcslink = prcs;
2388 int tmp = 17;
2389 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2390
2391 while (tmp--) {
2392 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2393 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2394 pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n",
2395 rcsindex);
2396 break;
2397 }
2398 prcslink = rcs_base(local) + rcsindex;
2399 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2400 }
2401 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2402 }
2403
2404 /*===========================================================================*/
authenticate(ray_dev_t * local)2405 static void authenticate(ray_dev_t *local)
2406 {
2407 struct pcmcia_device *link = local->finder;
2408 dev_dbg(&link->dev, "ray_cs Starting authentication.\n");
2409 if (!(pcmcia_dev_present(link))) {
2410 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n");
2411 return;
2412 }
2413
2414 del_timer(&local->timer);
2415 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2416 local->timer.function = join_net;
2417 } else {
2418 local->timer.function = authenticate_timeout;
2419 }
2420 local->timer.expires = jiffies + HZ * 2;
2421 add_timer(&local->timer);
2422 local->authentication_state = AWAITING_RESPONSE;
2423 } /* end authenticate */
2424
2425 /*===========================================================================*/
rx_authenticate(ray_dev_t * local,struct rcs __iomem * prcs,unsigned int pkt_addr,int rx_len)2426 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2427 unsigned int pkt_addr, int rx_len)
2428 {
2429 UCHAR buff[256];
2430 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2431
2432 del_timer(&local->timer);
2433
2434 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2435 /* if we are trying to get authenticated */
2436 if (local->sparm.b4.a_network_type == ADHOC) {
2437 pr_debug("ray_cs rx_auth var= %6ph\n", msg->var);
2438 if (msg->var[2] == 1) {
2439 pr_debug("ray_cs Sending authentication response.\n");
2440 if (!build_auth_frame
2441 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2442 local->authentication_state = NEED_TO_AUTH;
2443 memcpy(local->auth_id, msg->mac.addr_2,
2444 ADDRLEN);
2445 }
2446 }
2447 } else { /* Infrastructure network */
2448
2449 if (local->authentication_state == AWAITING_RESPONSE) {
2450 /* Verify authentication sequence #2 and success */
2451 if (msg->var[2] == 2) {
2452 if ((msg->var[3] | msg->var[4]) == 0) {
2453 pr_debug("Authentication successful\n");
2454 local->card_status = CARD_AUTH_COMPLETE;
2455 associate(local);
2456 local->authentication_state =
2457 AUTHENTICATED;
2458 } else {
2459 pr_debug("Authentication refused\n");
2460 local->card_status = CARD_AUTH_REFUSED;
2461 join_net(&local->timer);
2462 local->authentication_state =
2463 UNAUTHENTICATED;
2464 }
2465 }
2466 }
2467 }
2468
2469 } /* end rx_authenticate */
2470
2471 /*===========================================================================*/
associate(ray_dev_t * local)2472 static void associate(ray_dev_t *local)
2473 {
2474 struct ccs __iomem *pccs;
2475 struct pcmcia_device *link = local->finder;
2476 struct net_device *dev = link->priv;
2477 int ccsindex;
2478 if (!(pcmcia_dev_present(link))) {
2479 dev_dbg(&link->dev, "ray_cs associate - device not present\n");
2480 return;
2481 }
2482 /* If no tx buffers available, return */
2483 if ((ccsindex = get_free_ccs(local)) < 0) {
2484 /* TBD should never be here but... what if we are? */
2485 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n");
2486 return;
2487 }
2488 dev_dbg(&link->dev, "ray_cs Starting association with access point\n");
2489 pccs = ccs_base(local) + ccsindex;
2490 /* fill in the CCS */
2491 writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2492 /* Interrupt the firmware to process the command */
2493 if (interrupt_ecf(local, ccsindex)) {
2494 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
2495 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2496
2497 del_timer(&local->timer);
2498 local->timer.expires = jiffies + HZ * 2;
2499 local->timer.function = join_net;
2500 add_timer(&local->timer);
2501 local->card_status = CARD_ASSOC_FAILED;
2502 return;
2503 }
2504 if (!sniffer)
2505 netif_start_queue(dev);
2506
2507 } /* end associate */
2508
2509 /*===========================================================================*/
rx_deauthenticate(ray_dev_t * local,struct rcs __iomem * prcs,unsigned int pkt_addr,int rx_len)2510 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2511 unsigned int pkt_addr, int rx_len)
2512 {
2513 /* UCHAR buff[256];
2514 struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2515 */
2516 pr_debug("Deauthentication frame received\n");
2517 local->authentication_state = UNAUTHENTICATED;
2518 /* Need to reauthenticate or rejoin depending on reason code */
2519 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2520 */
2521 }
2522
2523 /*===========================================================================*/
clear_interrupt(ray_dev_t * local)2524 static void clear_interrupt(ray_dev_t *local)
2525 {
2526 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2527 }
2528
2529 /*===========================================================================*/
2530 #ifdef CONFIG_PROC_FS
2531 #define MAXDATA (PAGE_SIZE - 80)
2532
2533 static const char *card_status[] = {
2534 "Card inserted - uninitialized", /* 0 */
2535 "Card not downloaded", /* 1 */
2536 "Waiting for download parameters", /* 2 */
2537 "Card doing acquisition", /* 3 */
2538 "Acquisition complete", /* 4 */
2539 "Authentication complete", /* 5 */
2540 "Association complete", /* 6 */
2541 "???", "???", "???", "???", /* 7 8 9 10 undefined */
2542 "Card init error", /* 11 */
2543 "Download parameters error", /* 12 */
2544 "???", /* 13 */
2545 "Acquisition failed", /* 14 */
2546 "Authentication refused", /* 15 */
2547 "Association failed" /* 16 */
2548 };
2549
2550 static const char *nettype[] = { "Adhoc", "Infra " };
2551 static const char *framing[] = { "Encapsulation", "Translation" }
2552
2553 ;
2554 /*===========================================================================*/
ray_cs_proc_show(struct seq_file * m,void * v)2555 static int ray_cs_proc_show(struct seq_file *m, void *v)
2556 {
2557 /* Print current values which are not available via other means
2558 * eg ifconfig
2559 */
2560 int i;
2561 struct pcmcia_device *link;
2562 struct net_device *dev;
2563 ray_dev_t *local;
2564 UCHAR *p;
2565 struct freq_hop_element *pfh;
2566 UCHAR c[33];
2567
2568 link = this_device;
2569 if (!link)
2570 return 0;
2571 dev = (struct net_device *)link->priv;
2572 if (!dev)
2573 return 0;
2574 local = netdev_priv(dev);
2575 if (!local)
2576 return 0;
2577
2578 seq_puts(m, "Raylink Wireless LAN driver status\n");
2579 seq_printf(m, "%s\n", rcsid);
2580 /* build 4 does not report version, and field is 0x55 after memtest */
2581 seq_puts(m, "Firmware version = ");
2582 if (local->fw_ver == 0x55)
2583 seq_puts(m, "4 - Use dump_cis for more details\n");
2584 else
2585 seq_printf(m, "%2d.%02d.%02d\n",
2586 local->fw_ver, local->fw_bld, local->fw_var);
2587
2588 for (i = 0; i < 32; i++)
2589 c[i] = local->sparm.b5.a_current_ess_id[i];
2590 c[32] = 0;
2591 seq_printf(m, "%s network ESSID = \"%s\"\n",
2592 nettype[local->sparm.b5.a_network_type], c);
2593
2594 p = local->bss_id;
2595 seq_printf(m, "BSSID = %pM\n", p);
2596
2597 seq_printf(m, "Country code = %d\n",
2598 local->sparm.b5.a_curr_country_code);
2599
2600 i = local->card_status;
2601 if (i < 0)
2602 i = 10;
2603 if (i > 16)
2604 i = 10;
2605 seq_printf(m, "Card status = %s\n", card_status[i]);
2606
2607 seq_printf(m, "Framing mode = %s\n", framing[translate]);
2608
2609 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl);
2610
2611 if (local->beacon_rxed) {
2612 /* Pull some fields out of last beacon received */
2613 seq_printf(m, "Beacon Interval = %d Kus\n",
2614 local->last_bcn.beacon_intvl[0]
2615 + 256 * local->last_bcn.beacon_intvl[1]);
2616
2617 p = local->last_bcn.elements;
2618 if (p[0] == C_ESSID_ELEMENT_ID)
2619 p += p[1] + 2;
2620 else {
2621 seq_printf(m,
2622 "Parse beacon failed at essid element id = %d\n",
2623 p[0]);
2624 return 0;
2625 }
2626
2627 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2628 seq_puts(m, "Supported rate codes = ");
2629 for (i = 2; i < p[1] + 2; i++)
2630 seq_printf(m, "0x%02x ", p[i]);
2631 seq_putc(m, '\n');
2632 p += p[1] + 2;
2633 } else {
2634 seq_puts(m, "Parse beacon failed at rates element\n");
2635 return 0;
2636 }
2637
2638 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2639 pfh = (struct freq_hop_element *)p;
2640 seq_printf(m, "Hop dwell = %d Kus\n",
2641 pfh->dwell_time[0] +
2642 256 * pfh->dwell_time[1]);
2643 seq_printf(m, "Hop set = %d\n",
2644 pfh->hop_set);
2645 seq_printf(m, "Hop pattern = %d\n",
2646 pfh->hop_pattern);
2647 seq_printf(m, "Hop index = %d\n",
2648 pfh->hop_index);
2649 p += p[1] + 2;
2650 } else {
2651 seq_puts(m,
2652 "Parse beacon failed at FH param element\n");
2653 return 0;
2654 }
2655 } else {
2656 seq_puts(m, "No beacons received\n");
2657 }
2658 return 0;
2659 }
2660 #endif
2661 /*===========================================================================*/
build_auth_frame(ray_dev_t * local,UCHAR * dest,int auth_type)2662 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2663 {
2664 int addr;
2665 struct ccs __iomem *pccs;
2666 struct tx_msg __iomem *ptx;
2667 int ccsindex;
2668
2669 /* If no tx buffers available, return */
2670 if ((ccsindex = get_free_tx_ccs(local)) < 0) {
2671 pr_debug("ray_cs send authenticate - No free tx ccs\n");
2672 return -1;
2673 }
2674
2675 pccs = ccs_base(local) + ccsindex;
2676
2677 /* Address in card space */
2678 addr = TX_BUF_BASE + (ccsindex << 11);
2679 /* fill in the CCS */
2680 writeb(CCS_TX_REQUEST, &pccs->cmd);
2681 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2682 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2683 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2684 writeb(TX_AUTHENTICATE_LENGTH_LSB,
2685 pccs->var.tx_request.tx_data_length + 1);
2686 writeb(0, &pccs->var.tx_request.pow_sav_mode);
2687
2688 ptx = local->sram + addr;
2689 /* fill in the mac header */
2690 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2691 writeb(0, &ptx->mac.frame_ctl_2);
2692
2693 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2694 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2695 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2696
2697 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2698 memset_io(ptx->var, 0, 6);
2699 writeb(auth_type & 0xff, ptx->var + 2);
2700
2701 /* Interrupt the firmware to process the command */
2702 if (interrupt_ecf(local, ccsindex)) {
2703 pr_debug(
2704 "ray_cs send authentication request failed - ECF not ready for intr\n");
2705 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2706 return -1;
2707 }
2708 return 0;
2709 } /* End build_auth_frame */
2710
2711 /*===========================================================================*/
2712 #ifdef CONFIG_PROC_FS
ray_cs_essid_proc_write(struct file * file,const char __user * buffer,size_t count,loff_t * pos)2713 static ssize_t ray_cs_essid_proc_write(struct file *file,
2714 const char __user *buffer, size_t count, loff_t *pos)
2715 {
2716 static char proc_essid[33];
2717 unsigned int len = count;
2718
2719 if (len > 32)
2720 len = 32;
2721 memset(proc_essid, 0, 33);
2722 if (copy_from_user(proc_essid, buffer, len))
2723 return -EFAULT;
2724 essid = proc_essid;
2725 return count;
2726 }
2727
2728 static const struct proc_ops ray_cs_essid_proc_ops = {
2729 .proc_write = ray_cs_essid_proc_write,
2730 .proc_lseek = noop_llseek,
2731 };
2732
int_proc_write(struct file * file,const char __user * buffer,size_t count,loff_t * pos)2733 static ssize_t int_proc_write(struct file *file, const char __user *buffer,
2734 size_t count, loff_t *pos)
2735 {
2736 static char proc_number[10];
2737 char *p;
2738 int nr, len;
2739
2740 if (!count)
2741 return 0;
2742
2743 if (count > 9)
2744 return -EINVAL;
2745 if (copy_from_user(proc_number, buffer, count))
2746 return -EFAULT;
2747 p = proc_number;
2748 nr = 0;
2749 len = count;
2750 do {
2751 unsigned int c = *p - '0';
2752 if (c > 9)
2753 return -EINVAL;
2754 nr = nr * 10 + c;
2755 p++;
2756 } while (--len);
2757 *(int *)PDE_DATA(file_inode(file)) = nr;
2758 return count;
2759 }
2760
2761 static const struct proc_ops int_proc_ops = {
2762 .proc_write = int_proc_write,
2763 .proc_lseek = noop_llseek,
2764 };
2765 #endif
2766
2767 static const struct pcmcia_device_id ray_ids[] = {
2768 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2769 PCMCIA_DEVICE_NULL,
2770 };
2771
2772 MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2773
2774 static struct pcmcia_driver ray_driver = {
2775 .owner = THIS_MODULE,
2776 .name = "ray_cs",
2777 .probe = ray_probe,
2778 .remove = ray_detach,
2779 .id_table = ray_ids,
2780 .suspend = ray_suspend,
2781 .resume = ray_resume,
2782 };
2783
init_ray_cs(void)2784 static int __init init_ray_cs(void)
2785 {
2786 int rc;
2787
2788 pr_debug("%s\n", rcsid);
2789 rc = pcmcia_register_driver(&ray_driver);
2790 pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n",
2791 rc);
2792 if (rc)
2793 return rc;
2794
2795 #ifdef CONFIG_PROC_FS
2796 proc_mkdir("driver/ray_cs", NULL);
2797
2798 proc_create_single("driver/ray_cs/ray_cs", 0, NULL, ray_cs_proc_show);
2799 proc_create("driver/ray_cs/essid", 0200, NULL, &ray_cs_essid_proc_ops);
2800 proc_create_data("driver/ray_cs/net_type", 0200, NULL, &int_proc_ops,
2801 &net_type);
2802 proc_create_data("driver/ray_cs/translate", 0200, NULL, &int_proc_ops,
2803 &translate);
2804 #endif
2805 translate = !!translate;
2806 return 0;
2807 } /* init_ray_cs */
2808
2809 /*===========================================================================*/
2810
exit_ray_cs(void)2811 static void __exit exit_ray_cs(void)
2812 {
2813 pr_debug("ray_cs: cleanup_module\n");
2814
2815 #ifdef CONFIG_PROC_FS
2816 remove_proc_subtree("driver/ray_cs", NULL);
2817 #endif
2818
2819 pcmcia_unregister_driver(&ray_driver);
2820 } /* exit_ray_cs */
2821
2822 module_init(init_ray_cs);
2823 module_exit(exit_ray_cs);
2824
2825 /*===========================================================================*/
2826