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