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