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Merge branch 'v2.6.34-rc2' into drm-linus
[mirror_ubuntu-artful-kernel.git] / drivers / net / wireless / ray_cs.c
1 /*=============================================================================
2 *
3 * A PCMCIA client driver for the Raylink wireless LAN card.
4 * The starting point for this module was the skeleton.c in the
5 * PCMCIA 2.9.12 package written by David Hinds, dahinds@users.sourceforge.net
6 *
7 *
8 * Copyright (c) 1998 Corey Thomas (corey@world.std.com)
9 *
10 * This driver is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 only of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * It is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
22 *
23 * Changes:
24 * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
25 * - reorganize kmallocs in ray_attach, checking all for failure
26 * and releasing the previous allocations if one fails
27 *
28 * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003
29 * - Audit copy_to_user in ioctl(SIOCGIWESSID)
30 *
31 =============================================================================*/
32
33 #include <linux/module.h>
34 #include <linux/kernel.h>
35 #include <linux/proc_fs.h>
36 #include <linux/ptrace.h>
37 #include <linux/seq_file.h>
38 #include <linux/slab.h>
39 #include <linux/string.h>
40 #include <linux/timer.h>
41 #include <linux/init.h>
42 #include <linux/netdevice.h>
43 #include <linux/etherdevice.h>
44 #include <linux/if_arp.h>
45 #include <linux/ioport.h>
46 #include <linux/skbuff.h>
47 #include <linux/ethtool.h>
48 #include <linux/ieee80211.h>
49
50 #include <pcmcia/cs_types.h>
51 #include <pcmcia/cs.h>
52 #include <pcmcia/cistpl.h>
53 #include <pcmcia/cisreg.h>
54 #include <pcmcia/ds.h>
55 #include <pcmcia/mem_op.h>
56
57 #include <linux/wireless.h>
58 #include <net/iw_handler.h>
59
60 #include <asm/io.h>
61 #include <asm/system.h>
62 #include <asm/byteorder.h>
63 #include <asm/uaccess.h>
64
65 /* Warning : these stuff will slow down the driver... */
66 #define WIRELESS_SPY /* Enable spying addresses */
67 /* Definitions we need for spy */
68 typedef struct iw_statistics iw_stats;
69 typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */
70
71 #include "rayctl.h"
72 #include "ray_cs.h"
73
74
75 /** Prototypes based on PCMCIA skeleton driver *******************************/
76 static int ray_config(struct pcmcia_device *link);
77 static void ray_release(struct pcmcia_device *link);
78 static void ray_detach(struct pcmcia_device *p_dev);
79
80 /***** Prototypes indicated by device structure ******************************/
81 static int ray_dev_close(struct net_device *dev);
82 static int ray_dev_config(struct net_device *dev, struct ifmap *map);
83 static struct net_device_stats *ray_get_stats(struct net_device *dev);
84 static int ray_dev_init(struct net_device *dev);
85
86 static const struct ethtool_ops netdev_ethtool_ops;
87
88 static int ray_open(struct net_device *dev);
89 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
90 struct net_device *dev);
91 static void set_multicast_list(struct net_device *dev);
92 static void ray_update_multi_list(struct net_device *dev, int all);
93 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
94 unsigned char *data, int len);
95 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
96 UCHAR msg_type, unsigned char *data);
97 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
98 static iw_stats *ray_get_wireless_stats(struct net_device *dev);
99 static const struct iw_handler_def ray_handler_def;
100
101 /***** Prototypes for raylink functions **************************************/
102 static int asc_to_int(char a);
103 static void authenticate(ray_dev_t *local);
104 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
105 static void authenticate_timeout(u_long);
106 static int get_free_ccs(ray_dev_t *local);
107 static int get_free_tx_ccs(ray_dev_t *local);
108 static void init_startup_params(ray_dev_t *local);
109 static int parse_addr(char *in_str, UCHAR *out);
110 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type);
111 static int ray_init(struct net_device *dev);
112 static int interrupt_ecf(ray_dev_t *local, int ccs);
113 static void ray_reset(struct net_device *dev);
114 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
115 static void verify_dl_startup(u_long);
116
117 /* Prototypes for interrpt time functions **********************************/
118 static irqreturn_t ray_interrupt(int reg, void *dev_id);
119 static void clear_interrupt(ray_dev_t *local);
120 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
121 unsigned int pkt_addr, int rx_len);
122 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
123 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
124 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
125 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
126 unsigned int pkt_addr, int rx_len);
127 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
128 unsigned int pkt_addr, int rx_len);
129 static void associate(ray_dev_t *local);
130
131 /* Card command functions */
132 static int dl_startup_params(struct net_device *dev);
133 static void join_net(u_long local);
134 static void start_net(u_long local);
135 /* void start_net(ray_dev_t *local); */
136
137 /*===========================================================================*/
138 /* Parameters that can be set with 'insmod' */
139
140 /* ADHOC=0, Infrastructure=1 */
141 static int net_type = ADHOC;
142
143 /* Hop dwell time in Kus (1024 us units defined by 802.11) */
144 static int hop_dwell = 128;
145
146 /* Beacon period in Kus */
147 static int beacon_period = 256;
148
149 /* power save mode (0 = off, 1 = save power) */
150 static int psm;
151
152 /* String for network's Extended Service Set ID. 32 Characters max */
153 static char *essid;
154
155 /* Default to encapsulation unless translation requested */
156 static int translate = 1;
157
158 static int country = USA;
159
160 static int sniffer;
161
162 static int bc;
163
164 /* 48 bit physical card address if overriding card's real physical
165 * address is required. Since IEEE 802.11 addresses are 48 bits
166 * like ethernet, an int can't be used, so a string is used. To
167 * allow use of addresses starting with a decimal digit, the first
168 * character must be a letter and will be ignored. This letter is
169 * followed by up to 12 hex digits which are the address. If less
170 * than 12 digits are used, the address will be left filled with 0's.
171 * Note that bit 0 of the first byte is the broadcast bit, and evil
172 * things will happen if it is not 0 in a card address.
173 */
174 static char *phy_addr = NULL;
175
176
177 /* A struct pcmcia_device structure has fields for most things that are needed
178 to keep track of a socket, but there will usually be some device
179 specific information that also needs to be kept track of. The
180 'priv' pointer in a struct pcmcia_device structure can be used to point to
181 a device-specific private data structure, like this.
182 */
183 static unsigned int ray_mem_speed = 500;
184
185 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
186 static struct pcmcia_device *this_device = NULL;
187
188 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
189 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
190 MODULE_LICENSE("GPL");
191
192 module_param(net_type, int, 0);
193 module_param(hop_dwell, int, 0);
194 module_param(beacon_period, int, 0);
195 module_param(psm, int, 0);
196 module_param(essid, charp, 0);
197 module_param(translate, int, 0);
198 module_param(country, int, 0);
199 module_param(sniffer, int, 0);
200 module_param(bc, int, 0);
201 module_param(phy_addr, charp, 0);
202 module_param(ray_mem_speed, int, 0);
203
204 static UCHAR b5_default_startup_parms[] = {
205 0, 0, /* Adhoc station */
206 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
207 0, 0, 0, 0, 0, 0, 0, 0,
208 0, 0, 0, 0, 0, 0, 0, 0,
209 0, 0, 0, 0, 0, 0, 0, 0,
210 1, 0, /* Active scan, CA Mode */
211 0, 0, 0, 0, 0, 0, /* No default MAC addr */
212 0x7f, 0xff, /* Frag threshold */
213 0x00, 0x80, /* Hop time 128 Kus */
214 0x01, 0x00, /* Beacon period 256 Kus */
215 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
216 0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */
217 0x7f, 0xff, /* RTS threshold */
218 0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
219 0x05, /* assoc resp timeout thresh */
220 0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */
221 0, /* Promiscuous mode */
222 0x0c, 0x0bd, /* Unique word */
223 0x32, /* Slot time */
224 0xff, 0xff, /* roam-low snr, low snr count */
225 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
226 0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */
227 /* b4 - b5 differences start here */
228 0x00, 0x3f, /* CW max */
229 0x00, 0x0f, /* CW min */
230 0x04, 0x08, /* Noise gain, limit offset */
231 0x28, 0x28, /* det rssi, med busy offsets */
232 7, /* det sync thresh */
233 0, 2, 2, /* test mode, min, max */
234 0, /* allow broadcast SSID probe resp */
235 0, 0, /* privacy must start, can join */
236 2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */
237 };
238
239 static UCHAR b4_default_startup_parms[] = {
240 0, 0, /* Adhoc station */
241 'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
242 0, 0, 0, 0, 0, 0, 0, 0,
243 0, 0, 0, 0, 0, 0, 0, 0,
244 0, 0, 0, 0, 0, 0, 0, 0,
245 1, 0, /* Active scan, CA Mode */
246 0, 0, 0, 0, 0, 0, /* No default MAC addr */
247 0x7f, 0xff, /* Frag threshold */
248 0x02, 0x00, /* Hop time */
249 0x00, 0x01, /* Beacon period */
250 0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
251 0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */
252 0x7f, 0xff, /* RTS threshold */
253 0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
254 0x05, /* assoc resp timeout thresh */
255 0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */
256 0, /* Promiscuous mode */
257 0x0c, 0x0bd, /* Unique word */
258 0x4e, /* Slot time (TBD seems wrong) */
259 0xff, 0xff, /* roam-low snr, low snr count */
260 0x05, 0xff, /* Infra, adhoc missed bcn thresh */
261 0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */
262 /* b4 - b5 differences start here */
263 0x3f, 0x0f, /* CW max, min */
264 0x04, 0x08, /* Noise gain, limit offset */
265 0x28, 0x28, /* det rssi, med busy offsets */
266 7, /* det sync thresh */
267 0, 2, 2 /* test mode, min, max */
268 };
269
270 /*===========================================================================*/
271 static unsigned char eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 };
272
273 static char hop_pattern_length[] = { 1,
274 USA_HOP_MOD, EUROPE_HOP_MOD,
275 JAPAN_HOP_MOD, KOREA_HOP_MOD,
276 SPAIN_HOP_MOD, FRANCE_HOP_MOD,
277 ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
278 JAPAN_TEST_HOP_MOD
279 };
280
281 static char rcsid[] =
282 "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
283
284 static const struct net_device_ops ray_netdev_ops = {
285 .ndo_init = ray_dev_init,
286 .ndo_open = ray_open,
287 .ndo_stop = ray_dev_close,
288 .ndo_start_xmit = ray_dev_start_xmit,
289 .ndo_set_config = ray_dev_config,
290 .ndo_get_stats = ray_get_stats,
291 .ndo_set_multicast_list = set_multicast_list,
292 .ndo_change_mtu = eth_change_mtu,
293 .ndo_set_mac_address = eth_mac_addr,
294 .ndo_validate_addr = eth_validate_addr,
295 };
296
297 /*=============================================================================
298 ray_attach() creates an "instance" of the driver, allocating
299 local data structures for one device. The device is registered
300 with Card Services.
301 The dev_link structure is initialized, but we don't actually
302 configure the card at this point -- we wait until we receive a
303 card insertion event.
304 =============================================================================*/
305 static int ray_probe(struct pcmcia_device *p_dev)
306 {
307 ray_dev_t *local;
308 struct net_device *dev;
309
310 dev_dbg(&p_dev->dev, "ray_attach()\n");
311
312 /* Allocate space for private device-specific data */
313 dev = alloc_etherdev(sizeof(ray_dev_t));
314 if (!dev)
315 goto fail_alloc_dev;
316
317 local = netdev_priv(dev);
318 local->finder = p_dev;
319
320 /* The io structure describes IO port mapping. None used here */
321 p_dev->io.NumPorts1 = 0;
322 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
323 p_dev->io.IOAddrLines = 5;
324
325 /* Interrupt setup. For PCMCIA, driver takes what's given */
326 p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
327 p_dev->irq.Handler = &ray_interrupt;
328
329 /* General socket configuration */
330 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
331 p_dev->conf.IntType = INT_MEMORY_AND_IO;
332 p_dev->conf.ConfigIndex = 1;
333
334 p_dev->priv = dev;
335
336 local->finder = p_dev;
337 local->card_status = CARD_INSERTED;
338 local->authentication_state = UNAUTHENTICATED;
339 local->num_multi = 0;
340 dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n",
341 p_dev, dev, local, &ray_interrupt);
342
343 /* Raylink entries in the device structure */
344 dev->netdev_ops = &ray_netdev_ops;
345 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
346 dev->wireless_handlers = &ray_handler_def;
347 #ifdef WIRELESS_SPY
348 local->wireless_data.spy_data = &local->spy_data;
349 dev->wireless_data = &local->wireless_data;
350 #endif /* WIRELESS_SPY */
351
352
353 dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n");
354 netif_stop_queue(dev);
355
356 init_timer(&local->timer);
357
358 this_device = p_dev;
359 return ray_config(p_dev);
360
361 fail_alloc_dev:
362 return -ENOMEM;
363 } /* ray_attach */
364
365 /*=============================================================================
366 This deletes a driver "instance". The device is de-registered
367 with Card Services. If it has been released, all local data
368 structures are freed. Otherwise, the structures will be freed
369 when the device is released.
370 =============================================================================*/
371 static void ray_detach(struct pcmcia_device *link)
372 {
373 struct net_device *dev;
374 ray_dev_t *local;
375
376 dev_dbg(&link->dev, "ray_detach\n");
377
378 this_device = NULL;
379 dev = link->priv;
380
381 ray_release(link);
382
383 local = netdev_priv(dev);
384 del_timer(&local->timer);
385
386 if (link->priv) {
387 if (link->dev_node)
388 unregister_netdev(dev);
389 free_netdev(dev);
390 }
391 dev_dbg(&link->dev, "ray_cs ray_detach ending\n");
392 } /* ray_detach */
393
394 /*=============================================================================
395 ray_config() is run after a CARD_INSERTION event
396 is received, to configure the PCMCIA socket, and to make the
397 ethernet device available to the system.
398 =============================================================================*/
399 #define MAX_TUPLE_SIZE 128
400 static int ray_config(struct pcmcia_device *link)
401 {
402 int ret = 0;
403 int i;
404 win_req_t req;
405 memreq_t mem;
406 struct net_device *dev = (struct net_device *)link->priv;
407 ray_dev_t *local = netdev_priv(dev);
408
409 dev_dbg(&link->dev, "ray_config\n");
410
411 /* Determine card type and firmware version */
412 printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n",
413 link->prod_id[0] ? link->prod_id[0] : " ",
414 link->prod_id[1] ? link->prod_id[1] : " ",
415 link->prod_id[2] ? link->prod_id[2] : " ",
416 link->prod_id[3] ? link->prod_id[3] : " ");
417
418 /* Now allocate an interrupt line. Note that this does not
419 actually assign a handler to the interrupt.
420 */
421 ret = pcmcia_request_irq(link, &link->irq);
422 if (ret)
423 goto failed;
424 dev->irq = link->irq.AssignedIRQ;
425
426 /* This actually configures the PCMCIA socket -- setting up
427 the I/O windows and the interrupt mapping.
428 */
429 ret = pcmcia_request_configuration(link, &link->conf);
430 if (ret)
431 goto failed;
432
433 /*** Set up 32k window for shared memory (transmit and control) ************/
434 req.Attributes =
435 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
436 req.Base = 0;
437 req.Size = 0x8000;
438 req.AccessSpeed = ray_mem_speed;
439 ret = pcmcia_request_window(link, &req, &link->win);
440 if (ret)
441 goto failed;
442 mem.CardOffset = 0x0000;
443 mem.Page = 0;
444 ret = pcmcia_map_mem_page(link, link->win, &mem);
445 if (ret)
446 goto failed;
447 local->sram = ioremap(req.Base, req.Size);
448
449 /*** Set up 16k window for shared memory (receive buffer) ***************/
450 req.Attributes =
451 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
452 req.Base = 0;
453 req.Size = 0x4000;
454 req.AccessSpeed = ray_mem_speed;
455 ret = pcmcia_request_window(link, &req, &local->rmem_handle);
456 if (ret)
457 goto failed;
458 mem.CardOffset = 0x8000;
459 mem.Page = 0;
460 ret = pcmcia_map_mem_page(link, local->rmem_handle, &mem);
461 if (ret)
462 goto failed;
463 local->rmem = ioremap(req.Base, req.Size);
464
465 /*** Set up window for attribute memory ***********************************/
466 req.Attributes =
467 WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
468 req.Base = 0;
469 req.Size = 0x1000;
470 req.AccessSpeed = ray_mem_speed;
471 ret = pcmcia_request_window(link, &req, &local->amem_handle);
472 if (ret)
473 goto failed;
474 mem.CardOffset = 0x0000;
475 mem.Page = 0;
476 ret = pcmcia_map_mem_page(link, local->amem_handle, &mem);
477 if (ret)
478 goto failed;
479 local->amem = ioremap(req.Base, req.Size);
480
481 dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram);
482 dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem);
483 dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem);
484 if (ray_init(dev) < 0) {
485 ray_release(link);
486 return -ENODEV;
487 }
488
489 SET_NETDEV_DEV(dev, &link->dev);
490 i = register_netdev(dev);
491 if (i != 0) {
492 printk("ray_config register_netdev() failed\n");
493 ray_release(link);
494 return i;
495 }
496
497 strcpy(local->node.dev_name, dev->name);
498 link->dev_node = &local->node;
499
500 printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n",
501 dev->name, dev->irq, dev->dev_addr);
502
503 return 0;
504
505 failed:
506 ray_release(link);
507 return -ENODEV;
508 } /* ray_config */
509
510 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
511 {
512 return dev->sram + CCS_BASE;
513 }
514
515 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
516 {
517 /*
518 * This looks nonsensical, since there is a separate
519 * RCS_BASE. But the difference between a "struct rcs"
520 * and a "struct ccs" ends up being in the _index_ off
521 * the base, so the base pointer is the same for both
522 * ccs/rcs.
523 */
524 return dev->sram + CCS_BASE;
525 }
526
527 /*===========================================================================*/
528 static int ray_init(struct net_device *dev)
529 {
530 int i;
531 UCHAR *p;
532 struct ccs __iomem *pccs;
533 ray_dev_t *local = netdev_priv(dev);
534 struct pcmcia_device *link = local->finder;
535 dev_dbg(&link->dev, "ray_init(0x%p)\n", dev);
536 if (!(pcmcia_dev_present(link))) {
537 dev_dbg(&link->dev, "ray_init - device not present\n");
538 return -1;
539 }
540
541 local->net_type = net_type;
542 local->sta_type = TYPE_STA;
543
544 /* Copy the startup results to local memory */
545 memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,
546 sizeof(struct startup_res_6));
547
548 /* Check Power up test status and get mac address from card */
549 if (local->startup_res.startup_word != 0x80) {
550 printk(KERN_INFO "ray_init ERROR card status = %2x\n",
551 local->startup_res.startup_word);
552 local->card_status = CARD_INIT_ERROR;
553 return -1;
554 }
555
556 local->fw_ver = local->startup_res.firmware_version[0];
557 local->fw_bld = local->startup_res.firmware_version[1];
558 local->fw_var = local->startup_res.firmware_version[2];
559 dev_dbg(&link->dev, "ray_init firmware version %d.%d \n", local->fw_ver,
560 local->fw_bld);
561
562 local->tib_length = 0x20;
563 if ((local->fw_ver == 5) && (local->fw_bld >= 30))
564 local->tib_length = local->startup_res.tib_length;
565 dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length);
566 /* Initialize CCS's to buffer free state */
567 pccs = ccs_base(local);
568 for (i = 0; i < NUMBER_OF_CCS; i++) {
569 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
570 }
571 init_startup_params(local);
572
573 /* copy mac address to startup parameters */
574 if (parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) {
575 p = local->sparm.b4.a_mac_addr;
576 } else {
577 memcpy(&local->sparm.b4.a_mac_addr,
578 &local->startup_res.station_addr, ADDRLEN);
579 p = local->sparm.b4.a_mac_addr;
580 }
581
582 clear_interrupt(local); /* Clear any interrupt from the card */
583 local->card_status = CARD_AWAITING_PARAM;
584 dev_dbg(&link->dev, "ray_init ending\n");
585 return 0;
586 } /* ray_init */
587
588 /*===========================================================================*/
589 /* Download startup parameters to the card and command it to read them */
590 static int dl_startup_params(struct net_device *dev)
591 {
592 int ccsindex;
593 ray_dev_t *local = netdev_priv(dev);
594 struct ccs __iomem *pccs;
595 struct pcmcia_device *link = local->finder;
596
597 dev_dbg(&link->dev, "dl_startup_params entered\n");
598 if (!(pcmcia_dev_present(link))) {
599 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n");
600 return -1;
601 }
602
603 /* Copy parameters to host to ECF area */
604 if (local->fw_ver == 0x55)
605 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
606 sizeof(struct b4_startup_params));
607 else
608 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
609 sizeof(struct b5_startup_params));
610
611 /* Fill in the CCS fields for the ECF */
612 if ((ccsindex = get_free_ccs(local)) < 0)
613 return -1;
614 local->dl_param_ccs = ccsindex;
615 pccs = ccs_base(local) + ccsindex;
616 writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
617 dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n",
618 local->dl_param_ccs);
619 /* Interrupt the firmware to process the command */
620 if (interrupt_ecf(local, ccsindex)) {
621 printk(KERN_INFO "ray dl_startup_params failed - "
622 "ECF not ready for intr\n");
623 local->card_status = CARD_DL_PARAM_ERROR;
624 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
625 return -2;
626 }
627 local->card_status = CARD_DL_PARAM;
628 /* Start kernel timer to wait for dl startup to complete. */
629 local->timer.expires = jiffies + HZ / 2;
630 local->timer.data = (long)local;
631 local->timer.function = &verify_dl_startup;
632 add_timer(&local->timer);
633 dev_dbg(&link->dev,
634 "ray_cs dl_startup_params started timer for verify_dl_startup\n");
635 return 0;
636 } /* dl_startup_params */
637
638 /*===========================================================================*/
639 static void init_startup_params(ray_dev_t *local)
640 {
641 int i;
642
643 if (country > JAPAN_TEST)
644 country = USA;
645 else if (country < USA)
646 country = USA;
647 /* structure for hop time and beacon period is defined here using
648 * New 802.11D6.1 format. Card firmware is still using old format
649 * until version 6.
650 * Before After
651 * a_hop_time ms byte a_hop_time ms byte
652 * a_hop_time 2s byte a_hop_time ls byte
653 * a_hop_time ls byte a_beacon_period ms byte
654 * a_beacon_period a_beacon_period ls byte
655 *
656 * a_hop_time = uS a_hop_time = KuS
657 * a_beacon_period = hops a_beacon_period = KuS
658 *//* 64ms = 010000 */
659 if (local->fw_ver == 0x55) {
660 memcpy((UCHAR *) &local->sparm.b4, b4_default_startup_parms,
661 sizeof(struct b4_startup_params));
662 /* Translate sane kus input values to old build 4/5 format */
663 /* i = hop time in uS truncated to 3 bytes */
664 i = (hop_dwell * 1024) & 0xffffff;
665 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
666 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
667 local->sparm.b4.a_beacon_period[0] = 0;
668 local->sparm.b4.a_beacon_period[1] =
669 ((beacon_period / hop_dwell) - 1) & 0xff;
670 local->sparm.b4.a_curr_country_code = country;
671 local->sparm.b4.a_hop_pattern_length =
672 hop_pattern_length[(int)country] - 1;
673 if (bc) {
674 local->sparm.b4.a_ack_timeout = 0x50;
675 local->sparm.b4.a_sifs = 0x3f;
676 }
677 } else { /* Version 5 uses real kus values */
678 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms,
679 sizeof(struct b5_startup_params));
680
681 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
682 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
683 local->sparm.b5.a_beacon_period[0] =
684 (beacon_period >> 8) & 0xff;
685 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
686 if (psm)
687 local->sparm.b5.a_power_mgt_state = 1;
688 local->sparm.b5.a_curr_country_code = country;
689 local->sparm.b5.a_hop_pattern_length =
690 hop_pattern_length[(int)country];
691 }
692
693 local->sparm.b4.a_network_type = net_type & 0x01;
694 local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
695
696 if (essid != NULL)
697 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
698 } /* init_startup_params */
699
700 /*===========================================================================*/
701 static void verify_dl_startup(u_long data)
702 {
703 ray_dev_t *local = (ray_dev_t *) data;
704 struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
705 UCHAR status;
706 struct pcmcia_device *link = local->finder;
707
708 if (!(pcmcia_dev_present(link))) {
709 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n");
710 return;
711 }
712 #if 0
713 {
714 int i;
715 printk(KERN_DEBUG
716 "verify_dl_startup parameters sent via ccs %d:\n",
717 local->dl_param_ccs);
718 for (i = 0; i < sizeof(struct b5_startup_params); i++) {
719 printk(" %2x",
720 (unsigned int)readb(local->sram +
721 HOST_TO_ECF_BASE + i));
722 }
723 printk("\n");
724 }
725 #endif
726
727 status = readb(&pccs->buffer_status);
728 if (status != CCS_BUFFER_FREE) {
729 printk(KERN_INFO
730 "Download startup params failed. Status = %d\n",
731 status);
732 local->card_status = CARD_DL_PARAM_ERROR;
733 return;
734 }
735 if (local->sparm.b4.a_network_type == ADHOC)
736 start_net((u_long) local);
737 else
738 join_net((u_long) local);
739
740 return;
741 } /* end verify_dl_startup */
742
743 /*===========================================================================*/
744 /* Command card to start a network */
745 static void start_net(u_long data)
746 {
747 ray_dev_t *local = (ray_dev_t *) data;
748 struct ccs __iomem *pccs;
749 int ccsindex;
750 struct pcmcia_device *link = local->finder;
751 if (!(pcmcia_dev_present(link))) {
752 dev_dbg(&link->dev, "ray_cs start_net - device not present\n");
753 return;
754 }
755 /* Fill in the CCS fields for the ECF */
756 if ((ccsindex = get_free_ccs(local)) < 0)
757 return;
758 pccs = ccs_base(local) + ccsindex;
759 writeb(CCS_START_NETWORK, &pccs->cmd);
760 writeb(0, &pccs->var.start_network.update_param);
761 /* Interrupt the firmware to process the command */
762 if (interrupt_ecf(local, ccsindex)) {
763 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n");
764 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
765 return;
766 }
767 local->card_status = CARD_DOING_ACQ;
768 return;
769 } /* end start_net */
770
771 /*===========================================================================*/
772 /* Command card to join a network */
773 static void join_net(u_long data)
774 {
775 ray_dev_t *local = (ray_dev_t *) data;
776
777 struct ccs __iomem *pccs;
778 int ccsindex;
779 struct pcmcia_device *link = local->finder;
780
781 if (!(pcmcia_dev_present(link))) {
782 dev_dbg(&link->dev, "ray_cs join_net - device not present\n");
783 return;
784 }
785 /* Fill in the CCS fields for the ECF */
786 if ((ccsindex = get_free_ccs(local)) < 0)
787 return;
788 pccs = ccs_base(local) + ccsindex;
789 writeb(CCS_JOIN_NETWORK, &pccs->cmd);
790 writeb(0, &pccs->var.join_network.update_param);
791 writeb(0, &pccs->var.join_network.net_initiated);
792 /* Interrupt the firmware to process the command */
793 if (interrupt_ecf(local, ccsindex)) {
794 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n");
795 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
796 return;
797 }
798 local->card_status = CARD_DOING_ACQ;
799 return;
800 }
801
802 /*============================================================================
803 After a card is removed, ray_release() will unregister the net
804 device, and release the PCMCIA configuration. If the device is
805 still open, this will be postponed until it is closed.
806 =============================================================================*/
807 static void ray_release(struct pcmcia_device *link)
808 {
809 struct net_device *dev = link->priv;
810 ray_dev_t *local = netdev_priv(dev);
811 int i;
812
813 dev_dbg(&link->dev, "ray_release\n");
814
815 del_timer(&local->timer);
816
817 iounmap(local->sram);
818 iounmap(local->rmem);
819 iounmap(local->amem);
820 /* Do bother checking to see if these succeed or not */
821 i = pcmcia_release_window(link, local->amem_handle);
822 if (i != 0)
823 dev_dbg(&link->dev, "ReleaseWindow(local->amem) ret = %x\n", i);
824 i = pcmcia_release_window(link, local->rmem_handle);
825 if (i != 0)
826 dev_dbg(&link->dev, "ReleaseWindow(local->rmem) ret = %x\n", i);
827 pcmcia_disable_device(link);
828
829 dev_dbg(&link->dev, "ray_release ending\n");
830 }
831
832 static int ray_suspend(struct pcmcia_device *link)
833 {
834 struct net_device *dev = link->priv;
835
836 if (link->open)
837 netif_device_detach(dev);
838
839 return 0;
840 }
841
842 static int ray_resume(struct pcmcia_device *link)
843 {
844 struct net_device *dev = link->priv;
845
846 if (link->open) {
847 ray_reset(dev);
848 netif_device_attach(dev);
849 }
850
851 return 0;
852 }
853
854 /*===========================================================================*/
855 static int ray_dev_init(struct net_device *dev)
856 {
857 #ifdef RAY_IMMEDIATE_INIT
858 int i;
859 #endif /* RAY_IMMEDIATE_INIT */
860 ray_dev_t *local = netdev_priv(dev);
861 struct pcmcia_device *link = local->finder;
862
863 dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev);
864 if (!(pcmcia_dev_present(link))) {
865 dev_dbg(&link->dev, "ray_dev_init - device not present\n");
866 return -1;
867 }
868 #ifdef RAY_IMMEDIATE_INIT
869 /* Download startup parameters */
870 if ((i = dl_startup_params(dev)) < 0) {
871 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
872 "returns 0x%x\n", i);
873 return -1;
874 }
875 #else /* RAY_IMMEDIATE_INIT */
876 /* Postpone the card init so that we can still configure the card,
877 * for example using the Wireless Extensions. The init will happen
878 * in ray_open() - Jean II */
879 dev_dbg(&link->dev,
880 "ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
881 local->card_status);
882 #endif /* RAY_IMMEDIATE_INIT */
883
884 /* copy mac and broadcast addresses to linux device */
885 memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
886 memset(dev->broadcast, 0xff, ETH_ALEN);
887
888 dev_dbg(&link->dev, "ray_dev_init ending\n");
889 return 0;
890 }
891
892 /*===========================================================================*/
893 static int ray_dev_config(struct net_device *dev, struct ifmap *map)
894 {
895 ray_dev_t *local = netdev_priv(dev);
896 struct pcmcia_device *link = local->finder;
897 /* Dummy routine to satisfy device structure */
898 dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map);
899 if (!(pcmcia_dev_present(link))) {
900 dev_dbg(&link->dev, "ray_dev_config - device not present\n");
901 return -1;
902 }
903
904 return 0;
905 }
906
907 /*===========================================================================*/
908 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
909 struct net_device *dev)
910 {
911 ray_dev_t *local = netdev_priv(dev);
912 struct pcmcia_device *link = local->finder;
913 short length = skb->len;
914
915 if (!pcmcia_dev_present(link)) {
916 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n");
917 dev_kfree_skb(skb);
918 return NETDEV_TX_OK;
919 }
920
921 dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
922 if (local->authentication_state == NEED_TO_AUTH) {
923 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n");
924 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
925 local->authentication_state = AUTHENTICATED;
926 netif_stop_queue(dev);
927 return NETDEV_TX_BUSY;
928 }
929 }
930
931 if (length < ETH_ZLEN) {
932 if (skb_padto(skb, ETH_ZLEN))
933 return NETDEV_TX_OK;
934 length = ETH_ZLEN;
935 }
936 switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) {
937 case XMIT_NO_CCS:
938 case XMIT_NEED_AUTH:
939 netif_stop_queue(dev);
940 return NETDEV_TX_BUSY;
941 case XMIT_NO_INTR:
942 case XMIT_MSG_BAD:
943 case XMIT_OK:
944 default:
945 dev->trans_start = jiffies;
946 dev_kfree_skb(skb);
947 }
948
949 return NETDEV_TX_OK;
950 } /* ray_dev_start_xmit */
951
952 /*===========================================================================*/
953 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
954 UCHAR msg_type)
955 {
956 ray_dev_t *local = netdev_priv(dev);
957 struct ccs __iomem *pccs;
958 int ccsindex;
959 int offset;
960 struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */
961 short int addr; /* Address of xmit buffer in card space */
962
963 pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev);
964 if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) {
965 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",
966 len);
967 return XMIT_MSG_BAD;
968 }
969 switch (ccsindex = get_free_tx_ccs(local)) {
970 case ECCSBUSY:
971 pr_debug("ray_hw_xmit tx_ccs table busy\n");
972 case ECCSFULL:
973 pr_debug("ray_hw_xmit No free tx ccs\n");
974 case ECARDGONE:
975 netif_stop_queue(dev);
976 return XMIT_NO_CCS;
977 default:
978 break;
979 }
980 addr = TX_BUF_BASE + (ccsindex << 11);
981
982 if (msg_type == DATA_TYPE) {
983 local->stats.tx_bytes += len;
984 local->stats.tx_packets++;
985 }
986
987 ptx = local->sram + addr;
988
989 ray_build_header(local, ptx, msg_type, data);
990 if (translate) {
991 offset = translate_frame(local, ptx, data, len);
992 } else { /* Encapsulate frame */
993 /* TBD TIB length will move address of ptx->var */
994 memcpy_toio(&ptx->var, data, len);
995 offset = 0;
996 }
997
998 /* fill in the CCS */
999 pccs = ccs_base(local) + ccsindex;
1000 len += TX_HEADER_LENGTH + offset;
1001 writeb(CCS_TX_REQUEST, &pccs->cmd);
1002 writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
1003 writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
1004 writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
1005 writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
1006 /* TBD still need psm_cam? */
1007 writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
1008 writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
1009 writeb(0, &pccs->var.tx_request.antenna);
1010 pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n",
1011 local->net_default_tx_rate);
1012
1013 /* Interrupt the firmware to process the command */
1014 if (interrupt_ecf(local, ccsindex)) {
1015 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n");
1016 /* TBD very inefficient to copy packet to buffer, and then not
1017 send it, but the alternative is to queue the messages and that
1018 won't be done for a while. Maybe set tbusy until a CCS is free?
1019 */
1020 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
1021 return XMIT_NO_INTR;
1022 }
1023 return XMIT_OK;
1024 } /* end ray_hw_xmit */
1025
1026 /*===========================================================================*/
1027 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
1028 unsigned char *data, int len)
1029 {
1030 __be16 proto = ((struct ethhdr *)data)->h_proto;
1031 if (ntohs(proto) >= 1536) { /* DIX II ethernet frame */
1032 pr_debug("ray_cs translate_frame DIX II\n");
1033 /* Copy LLC header to card buffer */
1034 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
1035 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc),
1036 (UCHAR *) &proto, 2);
1037 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
1038 /* This is the selective translation table, only 2 entries */
1039 writeb(0xf8,
1040 &((struct snaphdr_t __iomem *)ptx->var)->org[3]);
1041 }
1042 /* Copy body of ethernet packet without ethernet header */
1043 memcpy_toio((void __iomem *)&ptx->var +
1044 sizeof(struct snaphdr_t), data + ETH_HLEN,
1045 len - ETH_HLEN);
1046 return (int)sizeof(struct snaphdr_t) - ETH_HLEN;
1047 } else { /* already 802 type, and proto is length */
1048 pr_debug("ray_cs translate_frame 802\n");
1049 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
1050 pr_debug("ray_cs translate_frame evil IPX\n");
1051 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
1052 return 0 - ETH_HLEN;
1053 }
1054 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
1055 return 0 - ETH_HLEN;
1056 }
1057 /* TBD do other frame types */
1058 } /* end translate_frame */
1059
1060 /*===========================================================================*/
1061 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
1062 UCHAR msg_type, unsigned char *data)
1063 {
1064 writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
1065 /*** IEEE 802.11 Address field assignments *************
1066 TODS FROMDS addr_1 addr_2 addr_3 addr_4
1067 Adhoc 0 0 dest src (terminal) BSSID N/A
1068 AP to Terminal 0 1 dest AP(BSSID) source N/A
1069 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A
1070 AP to AP 1 1 dest AP src AP dest source
1071 *******************************************************/
1072 if (local->net_type == ADHOC) {
1073 writeb(0, &ptx->mac.frame_ctl_2);
1074 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest,
1075 2 * ADDRLEN);
1076 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
1077 } else { /* infrastructure */
1078
1079 if (local->sparm.b4.a_acting_as_ap_status) {
1080 writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
1081 memcpy_toio(ptx->mac.addr_1,
1082 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1083 memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
1084 memcpy_toio(ptx->mac.addr_3,
1085 ((struct ethhdr *)data)->h_source, ADDRLEN);
1086 } else { /* Terminal */
1087
1088 writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
1089 memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1090 memcpy_toio(ptx->mac.addr_2,
1091 ((struct ethhdr *)data)->h_source, ADDRLEN);
1092 memcpy_toio(ptx->mac.addr_3,
1093 ((struct ethhdr *)data)->h_dest, ADDRLEN);
1094 }
1095 }
1096 } /* end encapsulate_frame */
1097
1098 /*===========================================================================*/
1099
1100 static void netdev_get_drvinfo(struct net_device *dev,
1101 struct ethtool_drvinfo *info)
1102 {
1103 strcpy(info->driver, "ray_cs");
1104 }
1105
1106 static const struct ethtool_ops netdev_ethtool_ops = {
1107 .get_drvinfo = netdev_get_drvinfo,
1108 };
1109
1110 /*====================================================================*/
1111
1112 /*------------------------------------------------------------------*/
1113 /*
1114 * Wireless Handler : get protocol name
1115 */
1116 static int ray_get_name(struct net_device *dev,
1117 struct iw_request_info *info, char *cwrq, char *extra)
1118 {
1119 strcpy(cwrq, "IEEE 802.11-FH");
1120 return 0;
1121 }
1122
1123 /*------------------------------------------------------------------*/
1124 /*
1125 * Wireless Handler : set frequency
1126 */
1127 static int ray_set_freq(struct net_device *dev,
1128 struct iw_request_info *info,
1129 struct iw_freq *fwrq, char *extra)
1130 {
1131 ray_dev_t *local = netdev_priv(dev);
1132 int err = -EINPROGRESS; /* Call commit handler */
1133
1134 /* Reject if card is already initialised */
1135 if (local->card_status != CARD_AWAITING_PARAM)
1136 return -EBUSY;
1137
1138 /* Setting by channel number */
1139 if ((fwrq->m > USA_HOP_MOD) || (fwrq->e > 0))
1140 err = -EOPNOTSUPP;
1141 else
1142 local->sparm.b5.a_hop_pattern = fwrq->m;
1143
1144 return err;
1145 }
1146
1147 /*------------------------------------------------------------------*/
1148 /*
1149 * Wireless Handler : get frequency
1150 */
1151 static int ray_get_freq(struct net_device *dev,
1152 struct iw_request_info *info,
1153 struct iw_freq *fwrq, char *extra)
1154 {
1155 ray_dev_t *local = netdev_priv(dev);
1156
1157 fwrq->m = local->sparm.b5.a_hop_pattern;
1158 fwrq->e = 0;
1159 return 0;
1160 }
1161
1162 /*------------------------------------------------------------------*/
1163 /*
1164 * Wireless Handler : set ESSID
1165 */
1166 static int ray_set_essid(struct net_device *dev,
1167 struct iw_request_info *info,
1168 struct iw_point *dwrq, char *extra)
1169 {
1170 ray_dev_t *local = netdev_priv(dev);
1171
1172 /* Reject if card is already initialised */
1173 if (local->card_status != CARD_AWAITING_PARAM)
1174 return -EBUSY;
1175
1176 /* Check if we asked for `any' */
1177 if (dwrq->flags == 0) {
1178 /* Corey : can you do that ? */
1179 return -EOPNOTSUPP;
1180 } else {
1181 /* Check the size of the string */
1182 if (dwrq->length > IW_ESSID_MAX_SIZE) {
1183 return -E2BIG;
1184 }
1185
1186 /* Set the ESSID in the card */
1187 memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1188 memcpy(local->sparm.b5.a_current_ess_id, extra, dwrq->length);
1189 }
1190
1191 return -EINPROGRESS; /* Call commit handler */
1192 }
1193
1194 /*------------------------------------------------------------------*/
1195 /*
1196 * Wireless Handler : get ESSID
1197 */
1198 static int ray_get_essid(struct net_device *dev,
1199 struct iw_request_info *info,
1200 struct iw_point *dwrq, char *extra)
1201 {
1202 ray_dev_t *local = netdev_priv(dev);
1203
1204 /* Get the essid that was set */
1205 memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1206
1207 /* Push it out ! */
1208 dwrq->length = strlen(extra);
1209 dwrq->flags = 1; /* active */
1210
1211 return 0;
1212 }
1213
1214 /*------------------------------------------------------------------*/
1215 /*
1216 * Wireless Handler : get AP address
1217 */
1218 static int ray_get_wap(struct net_device *dev,
1219 struct iw_request_info *info,
1220 struct sockaddr *awrq, char *extra)
1221 {
1222 ray_dev_t *local = netdev_priv(dev);
1223
1224 memcpy(awrq->sa_data, local->bss_id, ETH_ALEN);
1225 awrq->sa_family = ARPHRD_ETHER;
1226
1227 return 0;
1228 }
1229
1230 /*------------------------------------------------------------------*/
1231 /*
1232 * Wireless Handler : set Bit-Rate
1233 */
1234 static int ray_set_rate(struct net_device *dev,
1235 struct iw_request_info *info,
1236 struct iw_param *vwrq, char *extra)
1237 {
1238 ray_dev_t *local = netdev_priv(dev);
1239
1240 /* Reject if card is already initialised */
1241 if (local->card_status != CARD_AWAITING_PARAM)
1242 return -EBUSY;
1243
1244 /* Check if rate is in range */
1245 if ((vwrq->value != 1000000) && (vwrq->value != 2000000))
1246 return -EINVAL;
1247
1248 /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1249 if ((local->fw_ver == 0x55) && /* Please check */
1250 (vwrq->value == 2000000))
1251 local->net_default_tx_rate = 3;
1252 else
1253 local->net_default_tx_rate = vwrq->value / 500000;
1254
1255 return 0;
1256 }
1257
1258 /*------------------------------------------------------------------*/
1259 /*
1260 * Wireless Handler : get Bit-Rate
1261 */
1262 static int ray_get_rate(struct net_device *dev,
1263 struct iw_request_info *info,
1264 struct iw_param *vwrq, char *extra)
1265 {
1266 ray_dev_t *local = netdev_priv(dev);
1267
1268 if (local->net_default_tx_rate == 3)
1269 vwrq->value = 2000000; /* Hum... */
1270 else
1271 vwrq->value = local->net_default_tx_rate * 500000;
1272 vwrq->fixed = 0; /* We are in auto mode */
1273
1274 return 0;
1275 }
1276
1277 /*------------------------------------------------------------------*/
1278 /*
1279 * Wireless Handler : set RTS threshold
1280 */
1281 static int ray_set_rts(struct net_device *dev,
1282 struct iw_request_info *info,
1283 struct iw_param *vwrq, char *extra)
1284 {
1285 ray_dev_t *local = netdev_priv(dev);
1286 int rthr = vwrq->value;
1287
1288 /* Reject if card is already initialised */
1289 if (local->card_status != CARD_AWAITING_PARAM)
1290 return -EBUSY;
1291
1292 /* if(wrq->u.rts.fixed == 0) we should complain */
1293 if (vwrq->disabled)
1294 rthr = 32767;
1295 else {
1296 if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */
1297 return -EINVAL;
1298 }
1299 local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1300 local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1301
1302 return -EINPROGRESS; /* Call commit handler */
1303 }
1304
1305 /*------------------------------------------------------------------*/
1306 /*
1307 * Wireless Handler : get RTS threshold
1308 */
1309 static int ray_get_rts(struct net_device *dev,
1310 struct iw_request_info *info,
1311 struct iw_param *vwrq, char *extra)
1312 {
1313 ray_dev_t *local = netdev_priv(dev);
1314
1315 vwrq->value = (local->sparm.b5.a_rts_threshold[0] << 8)
1316 + local->sparm.b5.a_rts_threshold[1];
1317 vwrq->disabled = (vwrq->value == 32767);
1318 vwrq->fixed = 1;
1319
1320 return 0;
1321 }
1322
1323 /*------------------------------------------------------------------*/
1324 /*
1325 * Wireless Handler : set Fragmentation threshold
1326 */
1327 static int ray_set_frag(struct net_device *dev,
1328 struct iw_request_info *info,
1329 struct iw_param *vwrq, char *extra)
1330 {
1331 ray_dev_t *local = netdev_priv(dev);
1332 int fthr = vwrq->value;
1333
1334 /* Reject if card is already initialised */
1335 if (local->card_status != CARD_AWAITING_PARAM)
1336 return -EBUSY;
1337
1338 /* if(wrq->u.frag.fixed == 0) should complain */
1339 if (vwrq->disabled)
1340 fthr = 32767;
1341 else {
1342 if ((fthr < 256) || (fthr > 2347)) /* To check out ! */
1343 return -EINVAL;
1344 }
1345 local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1346 local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1347
1348 return -EINPROGRESS; /* Call commit handler */
1349 }
1350
1351 /*------------------------------------------------------------------*/
1352 /*
1353 * Wireless Handler : get Fragmentation threshold
1354 */
1355 static int ray_get_frag(struct net_device *dev,
1356 struct iw_request_info *info,
1357 struct iw_param *vwrq, char *extra)
1358 {
1359 ray_dev_t *local = netdev_priv(dev);
1360
1361 vwrq->value = (local->sparm.b5.a_frag_threshold[0] << 8)
1362 + local->sparm.b5.a_frag_threshold[1];
1363 vwrq->disabled = (vwrq->value == 32767);
1364 vwrq->fixed = 1;
1365
1366 return 0;
1367 }
1368
1369 /*------------------------------------------------------------------*/
1370 /*
1371 * Wireless Handler : set Mode of Operation
1372 */
1373 static int ray_set_mode(struct net_device *dev,
1374 struct iw_request_info *info, __u32 *uwrq, char *extra)
1375 {
1376 ray_dev_t *local = netdev_priv(dev);
1377 int err = -EINPROGRESS; /* Call commit handler */
1378 char card_mode = 1;
1379
1380 /* Reject if card is already initialised */
1381 if (local->card_status != CARD_AWAITING_PARAM)
1382 return -EBUSY;
1383
1384 switch (*uwrq) {
1385 case IW_MODE_ADHOC:
1386 card_mode = 0;
1387 /* Fall through */
1388 case IW_MODE_INFRA:
1389 local->sparm.b5.a_network_type = card_mode;
1390 break;
1391 default:
1392 err = -EINVAL;
1393 }
1394
1395 return err;
1396 }
1397
1398 /*------------------------------------------------------------------*/
1399 /*
1400 * Wireless Handler : get Mode of Operation
1401 */
1402 static int ray_get_mode(struct net_device *dev,
1403 struct iw_request_info *info, __u32 *uwrq, char *extra)
1404 {
1405 ray_dev_t *local = netdev_priv(dev);
1406
1407 if (local->sparm.b5.a_network_type)
1408 *uwrq = IW_MODE_INFRA;
1409 else
1410 *uwrq = IW_MODE_ADHOC;
1411
1412 return 0;
1413 }
1414
1415 /*------------------------------------------------------------------*/
1416 /*
1417 * Wireless Handler : get range info
1418 */
1419 static int ray_get_range(struct net_device *dev,
1420 struct iw_request_info *info,
1421 struct iw_point *dwrq, char *extra)
1422 {
1423 struct iw_range *range = (struct iw_range *)extra;
1424
1425 memset((char *)range, 0, sizeof(struct iw_range));
1426
1427 /* Set the length (very important for backward compatibility) */
1428 dwrq->length = sizeof(struct iw_range);
1429
1430 /* Set the Wireless Extension versions */
1431 range->we_version_compiled = WIRELESS_EXT;
1432 range->we_version_source = 9;
1433
1434 /* Set information in the range struct */
1435 range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */
1436 range->num_channels = hop_pattern_length[(int)country];
1437 range->num_frequency = 0;
1438 range->max_qual.qual = 0;
1439 range->max_qual.level = 255; /* What's the correct value ? */
1440 range->max_qual.noise = 255; /* Idem */
1441 range->num_bitrates = 2;
1442 range->bitrate[0] = 1000000; /* 1 Mb/s */
1443 range->bitrate[1] = 2000000; /* 2 Mb/s */
1444 return 0;
1445 }
1446
1447 /*------------------------------------------------------------------*/
1448 /*
1449 * Wireless Private Handler : set framing mode
1450 */
1451 static int ray_set_framing(struct net_device *dev,
1452 struct iw_request_info *info,
1453 union iwreq_data *wrqu, char *extra)
1454 {
1455 translate = *(extra); /* Set framing mode */
1456
1457 return 0;
1458 }
1459
1460 /*------------------------------------------------------------------*/
1461 /*
1462 * Wireless Private Handler : get framing mode
1463 */
1464 static int ray_get_framing(struct net_device *dev,
1465 struct iw_request_info *info,
1466 union iwreq_data *wrqu, char *extra)
1467 {
1468 *(extra) = translate;
1469
1470 return 0;
1471 }
1472
1473 /*------------------------------------------------------------------*/
1474 /*
1475 * Wireless Private Handler : get country
1476 */
1477 static int ray_get_country(struct net_device *dev,
1478 struct iw_request_info *info,
1479 union iwreq_data *wrqu, char *extra)
1480 {
1481 *(extra) = country;
1482
1483 return 0;
1484 }
1485
1486 /*------------------------------------------------------------------*/
1487 /*
1488 * Commit handler : called after a bunch of SET operations
1489 */
1490 static int ray_commit(struct net_device *dev, struct iw_request_info *info, /* NULL */
1491 void *zwrq, /* NULL */
1492 char *extra)
1493 { /* NULL */
1494 return 0;
1495 }
1496
1497 /*------------------------------------------------------------------*/
1498 /*
1499 * Stats handler : return Wireless Stats
1500 */
1501 static iw_stats *ray_get_wireless_stats(struct net_device *dev)
1502 {
1503 ray_dev_t *local = netdev_priv(dev);
1504 struct pcmcia_device *link = local->finder;
1505 struct status __iomem *p = local->sram + STATUS_BASE;
1506
1507 local->wstats.status = local->card_status;
1508 #ifdef WIRELESS_SPY
1509 if ((local->spy_data.spy_number > 0)
1510 && (local->sparm.b5.a_network_type == 0)) {
1511 /* Get it from the first node in spy list */
1512 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1513 local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1514 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1515 local->wstats.qual.updated =
1516 local->spy_data.spy_stat[0].updated;
1517 }
1518 #endif /* WIRELESS_SPY */
1519
1520 if (pcmcia_dev_present(link)) {
1521 local->wstats.qual.noise = readb(&p->rxnoise);
1522 local->wstats.qual.updated |= 4;
1523 }
1524
1525 return &local->wstats;
1526 } /* end ray_get_wireless_stats */
1527
1528 /*------------------------------------------------------------------*/
1529 /*
1530 * Structures to export the Wireless Handlers
1531 */
1532
1533 static const iw_handler ray_handler[] = {
1534 [SIOCSIWCOMMIT - SIOCIWFIRST] = (iw_handler) ray_commit,
1535 [SIOCGIWNAME - SIOCIWFIRST] = (iw_handler) ray_get_name,
1536 [SIOCSIWFREQ - SIOCIWFIRST] = (iw_handler) ray_set_freq,
1537 [SIOCGIWFREQ - SIOCIWFIRST] = (iw_handler) ray_get_freq,
1538 [SIOCSIWMODE - SIOCIWFIRST] = (iw_handler) ray_set_mode,
1539 [SIOCGIWMODE - SIOCIWFIRST] = (iw_handler) ray_get_mode,
1540 [SIOCGIWRANGE - SIOCIWFIRST] = (iw_handler) ray_get_range,
1541 #ifdef WIRELESS_SPY
1542 [SIOCSIWSPY - SIOCIWFIRST] = (iw_handler) iw_handler_set_spy,
1543 [SIOCGIWSPY - SIOCIWFIRST] = (iw_handler) iw_handler_get_spy,
1544 [SIOCSIWTHRSPY - SIOCIWFIRST] = (iw_handler) iw_handler_set_thrspy,
1545 [SIOCGIWTHRSPY - SIOCIWFIRST] = (iw_handler) iw_handler_get_thrspy,
1546 #endif /* WIRELESS_SPY */
1547 [SIOCGIWAP - SIOCIWFIRST] = (iw_handler) ray_get_wap,
1548 [SIOCSIWESSID - SIOCIWFIRST] = (iw_handler) ray_set_essid,
1549 [SIOCGIWESSID - SIOCIWFIRST] = (iw_handler) ray_get_essid,
1550 [SIOCSIWRATE - SIOCIWFIRST] = (iw_handler) ray_set_rate,
1551 [SIOCGIWRATE - SIOCIWFIRST] = (iw_handler) ray_get_rate,
1552 [SIOCSIWRTS - SIOCIWFIRST] = (iw_handler) ray_set_rts,
1553 [SIOCGIWRTS - SIOCIWFIRST] = (iw_handler) ray_get_rts,
1554 [SIOCSIWFRAG - SIOCIWFIRST] = (iw_handler) ray_set_frag,
1555 [SIOCGIWFRAG - SIOCIWFIRST] = (iw_handler) ray_get_frag,
1556 };
1557
1558 #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */
1559 #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */
1560 #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */
1561
1562 static const iw_handler ray_private_handler[] = {
1563 [0] = (iw_handler) ray_set_framing,
1564 [1] = (iw_handler) ray_get_framing,
1565 [3] = (iw_handler) ray_get_country,
1566 };
1567
1568 static const struct iw_priv_args ray_private_args[] = {
1569 /* cmd, set_args, get_args, name */
1570 {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0,
1571 "set_framing"},
1572 {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1573 "get_framing"},
1574 {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1575 "get_country"},
1576 };
1577
1578 static const struct iw_handler_def ray_handler_def = {
1579 .num_standard = ARRAY_SIZE(ray_handler),
1580 .num_private = ARRAY_SIZE(ray_private_handler),
1581 .num_private_args = ARRAY_SIZE(ray_private_args),
1582 .standard = ray_handler,
1583 .private = ray_private_handler,
1584 .private_args = ray_private_args,
1585 .get_wireless_stats = ray_get_wireless_stats,
1586 };
1587
1588 /*===========================================================================*/
1589 static int ray_open(struct net_device *dev)
1590 {
1591 ray_dev_t *local = netdev_priv(dev);
1592 struct pcmcia_device *link;
1593 link = local->finder;
1594
1595 dev_dbg(&link->dev, "ray_open('%s')\n", dev->name);
1596
1597 if (link->open == 0)
1598 local->num_multi = 0;
1599 link->open++;
1600
1601 /* If the card is not started, time to start it ! - Jean II */
1602 if (local->card_status == CARD_AWAITING_PARAM) {
1603 int i;
1604
1605 dev_dbg(&link->dev, "ray_open: doing init now !\n");
1606
1607 /* Download startup parameters */
1608 if ((i = dl_startup_params(dev)) < 0) {
1609 printk(KERN_INFO
1610 "ray_dev_init dl_startup_params failed - "
1611 "returns 0x%x\n", i);
1612 return -1;
1613 }
1614 }
1615
1616 if (sniffer)
1617 netif_stop_queue(dev);
1618 else
1619 netif_start_queue(dev);
1620
1621 dev_dbg(&link->dev, "ray_open ending\n");
1622 return 0;
1623 } /* end ray_open */
1624
1625 /*===========================================================================*/
1626 static int ray_dev_close(struct net_device *dev)
1627 {
1628 ray_dev_t *local = netdev_priv(dev);
1629 struct pcmcia_device *link;
1630 link = local->finder;
1631
1632 dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name);
1633
1634 link->open--;
1635 netif_stop_queue(dev);
1636
1637 /* In here, we should stop the hardware (stop card from beeing active)
1638 * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1639 * card is closed we can chage its configuration.
1640 * Probably also need a COR reset to get sane state - Jean II */
1641
1642 return 0;
1643 } /* end ray_dev_close */
1644
1645 /*===========================================================================*/
1646 static void ray_reset(struct net_device *dev)
1647 {
1648 pr_debug("ray_reset entered\n");
1649 return;
1650 }
1651
1652 /*===========================================================================*/
1653 /* Cause a firmware interrupt if it is ready for one */
1654 /* Return nonzero if not ready */
1655 static int interrupt_ecf(ray_dev_t *local, int ccs)
1656 {
1657 int i = 50;
1658 struct pcmcia_device *link = local->finder;
1659
1660 if (!(pcmcia_dev_present(link))) {
1661 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n");
1662 return -1;
1663 }
1664 dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs);
1665
1666 while (i &&
1667 (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) &
1668 ECF_INTR_SET))
1669 i--;
1670 if (i == 0) {
1671 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n");
1672 return -1;
1673 }
1674 /* Fill the mailbox, then kick the card */
1675 writeb(ccs, local->sram + SCB_BASE);
1676 writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1677 return 0;
1678 } /* interrupt_ecf */
1679
1680 /*===========================================================================*/
1681 /* Get next free transmit CCS */
1682 /* Return - index of current tx ccs */
1683 static int get_free_tx_ccs(ray_dev_t *local)
1684 {
1685 int i;
1686 struct ccs __iomem *pccs = ccs_base(local);
1687 struct pcmcia_device *link = local->finder;
1688
1689 if (!(pcmcia_dev_present(link))) {
1690 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n");
1691 return ECARDGONE;
1692 }
1693
1694 if (test_and_set_bit(0, &local->tx_ccs_lock)) {
1695 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n");
1696 return ECCSBUSY;
1697 }
1698
1699 for (i = 0; i < NUMBER_OF_TX_CCS; i++) {
1700 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1701 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1702 writeb(CCS_END_LIST, &(pccs + i)->link);
1703 local->tx_ccs_lock = 0;
1704 return i;
1705 }
1706 }
1707 local->tx_ccs_lock = 0;
1708 dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n");
1709 return ECCSFULL;
1710 } /* get_free_tx_ccs */
1711
1712 /*===========================================================================*/
1713 /* Get next free CCS */
1714 /* Return - index of current ccs */
1715 static int get_free_ccs(ray_dev_t *local)
1716 {
1717 int i;
1718 struct ccs __iomem *pccs = ccs_base(local);
1719 struct pcmcia_device *link = local->finder;
1720
1721 if (!(pcmcia_dev_present(link))) {
1722 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n");
1723 return ECARDGONE;
1724 }
1725 if (test_and_set_bit(0, &local->ccs_lock)) {
1726 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n");
1727 return ECCSBUSY;
1728 }
1729
1730 for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1731 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1732 writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1733 writeb(CCS_END_LIST, &(pccs + i)->link);
1734 local->ccs_lock = 0;
1735 return i;
1736 }
1737 }
1738 local->ccs_lock = 0;
1739 dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n");
1740 return ECCSFULL;
1741 } /* get_free_ccs */
1742
1743 /*===========================================================================*/
1744 static void authenticate_timeout(u_long data)
1745 {
1746 ray_dev_t *local = (ray_dev_t *) data;
1747 del_timer(&local->timer);
1748 printk(KERN_INFO "ray_cs Authentication with access point failed"
1749 " - timeout\n");
1750 join_net((u_long) local);
1751 }
1752
1753 /*===========================================================================*/
1754 static int asc_to_int(char a)
1755 {
1756 if (a < '0')
1757 return -1;
1758 if (a <= '9')
1759 return (a - '0');
1760 if (a < 'A')
1761 return -1;
1762 if (a <= 'F')
1763 return (10 + a - 'A');
1764 if (a < 'a')
1765 return -1;
1766 if (a <= 'f')
1767 return (10 + a - 'a');
1768 return -1;
1769 }
1770
1771 /*===========================================================================*/
1772 static int parse_addr(char *in_str, UCHAR *out)
1773 {
1774 int len;
1775 int i, j, k;
1776 int status;
1777
1778 if (in_str == NULL)
1779 return 0;
1780 if ((len = strlen(in_str)) < 2)
1781 return 0;
1782 memset(out, 0, ADDRLEN);
1783
1784 status = 1;
1785 j = len - 1;
1786 if (j > 12)
1787 j = 12;
1788 i = 5;
1789
1790 while (j > 0) {
1791 if ((k = asc_to_int(in_str[j--])) != -1)
1792 out[i] = k;
1793 else
1794 return 0;
1795
1796 if (j == 0)
1797 break;
1798 if ((k = asc_to_int(in_str[j--])) != -1)
1799 out[i] += k << 4;
1800 else
1801 return 0;
1802 if (!i--)
1803 break;
1804 }
1805 return status;
1806 }
1807
1808 /*===========================================================================*/
1809 static struct net_device_stats *ray_get_stats(struct net_device *dev)
1810 {
1811 ray_dev_t *local = netdev_priv(dev);
1812 struct pcmcia_device *link = local->finder;
1813 struct status __iomem *p = local->sram + STATUS_BASE;
1814 if (!(pcmcia_dev_present(link))) {
1815 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n");
1816 return &local->stats;
1817 }
1818 if (readb(&p->mrx_overflow_for_host)) {
1819 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1820 writeb(0, &p->mrx_overflow);
1821 writeb(0, &p->mrx_overflow_for_host);
1822 }
1823 if (readb(&p->mrx_checksum_error_for_host)) {
1824 local->stats.rx_crc_errors +=
1825 swab16(readw(&p->mrx_checksum_error));
1826 writeb(0, &p->mrx_checksum_error);
1827 writeb(0, &p->mrx_checksum_error_for_host);
1828 }
1829 if (readb(&p->rx_hec_error_for_host)) {
1830 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1831 writeb(0, &p->rx_hec_error);
1832 writeb(0, &p->rx_hec_error_for_host);
1833 }
1834 return &local->stats;
1835 }
1836
1837 /*===========================================================================*/
1838 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value,
1839 int len)
1840 {
1841 ray_dev_t *local = netdev_priv(dev);
1842 struct pcmcia_device *link = local->finder;
1843 int ccsindex;
1844 int i;
1845 struct ccs __iomem *pccs;
1846
1847 if (!(pcmcia_dev_present(link))) {
1848 dev_dbg(&link->dev, "ray_update_parm - device not present\n");
1849 return;
1850 }
1851
1852 if ((ccsindex = get_free_ccs(local)) < 0) {
1853 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n");
1854 return;
1855 }
1856 pccs = ccs_base(local) + ccsindex;
1857 writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1858 writeb(objid, &pccs->var.update_param.object_id);
1859 writeb(1, &pccs->var.update_param.number_objects);
1860 writeb(0, &pccs->var.update_param.failure_cause);
1861 for (i = 0; i < len; i++) {
1862 writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1863 }
1864 /* Interrupt the firmware to process the command */
1865 if (interrupt_ecf(local, ccsindex)) {
1866 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
1867 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1868 }
1869 }
1870
1871 /*===========================================================================*/
1872 static void ray_update_multi_list(struct net_device *dev, int all)
1873 {
1874 int ccsindex;
1875 struct ccs __iomem *pccs;
1876 ray_dev_t *local = netdev_priv(dev);
1877 struct pcmcia_device *link = local->finder;
1878 void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1879
1880 if (!(pcmcia_dev_present(link))) {
1881 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n");
1882 return;
1883 } else
1884 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev);
1885 if ((ccsindex = get_free_ccs(local)) < 0) {
1886 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n");
1887 return;
1888 }
1889 pccs = ccs_base(local) + ccsindex;
1890 writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1891
1892 if (all) {
1893 writeb(0xff, &pccs->var);
1894 local->num_multi = 0xff;
1895 } else {
1896 struct dev_mc_list *dmi;
1897 int i = 0;
1898
1899 /* Copy the kernel's list of MC addresses to card */
1900 netdev_for_each_mc_addr(dmi, dev) {
1901 memcpy_toio(p, dmi->dmi_addr, ETH_ALEN);
1902 dev_dbg(&link->dev,
1903 "ray_update_multi add addr %02x%02x%02x%02x%02x%02x\n",
1904 dmi->dmi_addr[0], dmi->dmi_addr[1],
1905 dmi->dmi_addr[2], dmi->dmi_addr[3],
1906 dmi->dmi_addr[4], dmi->dmi_addr[5]);
1907 p += ETH_ALEN;
1908 i++;
1909 }
1910 if (i > 256 / ADDRLEN)
1911 i = 256 / ADDRLEN;
1912 writeb((UCHAR) i, &pccs->var);
1913 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i);
1914 /* Interrupt the firmware to process the command */
1915 local->num_multi = i;
1916 }
1917 if (interrupt_ecf(local, ccsindex)) {
1918 dev_dbg(&link->dev,
1919 "ray_cs update_multi failed - ECF not ready for intr\n");
1920 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1921 }
1922 } /* end ray_update_multi_list */
1923
1924 /*===========================================================================*/
1925 static void set_multicast_list(struct net_device *dev)
1926 {
1927 ray_dev_t *local = netdev_priv(dev);
1928 UCHAR promisc;
1929
1930 pr_debug("ray_cs set_multicast_list(%p)\n", dev);
1931
1932 if (dev->flags & IFF_PROMISC) {
1933 if (local->sparm.b5.a_promiscuous_mode == 0) {
1934 pr_debug("ray_cs set_multicast_list promisc on\n");
1935 local->sparm.b5.a_promiscuous_mode = 1;
1936 promisc = 1;
1937 ray_update_parm(dev, OBJID_promiscuous_mode,
1938 &promisc, sizeof(promisc));
1939 }
1940 } else {
1941 if (local->sparm.b5.a_promiscuous_mode == 1) {
1942 pr_debug("ray_cs set_multicast_list promisc off\n");
1943 local->sparm.b5.a_promiscuous_mode = 0;
1944 promisc = 0;
1945 ray_update_parm(dev, OBJID_promiscuous_mode,
1946 &promisc, sizeof(promisc));
1947 }
1948 }
1949
1950 if (dev->flags & IFF_ALLMULTI)
1951 ray_update_multi_list(dev, 1);
1952 else {
1953 if (local->num_multi != netdev_mc_count(dev))
1954 ray_update_multi_list(dev, 0);
1955 }
1956 } /* end set_multicast_list */
1957
1958 /*=============================================================================
1959 * All routines below here are run at interrupt time.
1960 =============================================================================*/
1961 static irqreturn_t ray_interrupt(int irq, void *dev_id)
1962 {
1963 struct net_device *dev = (struct net_device *)dev_id;
1964 struct pcmcia_device *link;
1965 ray_dev_t *local;
1966 struct ccs __iomem *pccs;
1967 struct rcs __iomem *prcs;
1968 UCHAR rcsindex;
1969 UCHAR tmp;
1970 UCHAR cmd;
1971 UCHAR status;
1972
1973 if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */
1974 return IRQ_NONE;
1975
1976 pr_debug("ray_cs: interrupt for *dev=%p\n", dev);
1977
1978 local = netdev_priv(dev);
1979 link = (struct pcmcia_device *)local->finder;
1980 if (!pcmcia_dev_present(link)) {
1981 pr_debug(
1982 "ray_cs interrupt from device not present or suspended.\n");
1983 return IRQ_NONE;
1984 }
1985 rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1986
1987 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
1988 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex);
1989 clear_interrupt(local);
1990 return IRQ_HANDLED;
1991 }
1992 if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */
1993 pccs = ccs_base(local) + rcsindex;
1994 cmd = readb(&pccs->cmd);
1995 status = readb(&pccs->buffer_status);
1996 switch (cmd) {
1997 case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */
1998 del_timer(&local->timer);
1999 if (status == CCS_COMMAND_COMPLETE) {
2000 dev_dbg(&link->dev,
2001 "ray_cs interrupt download_startup_parameters OK\n");
2002 } else {
2003 dev_dbg(&link->dev,
2004 "ray_cs interrupt download_startup_parameters fail\n");
2005 }
2006 break;
2007 case CCS_UPDATE_PARAMS:
2008 dev_dbg(&link->dev, "ray_cs interrupt update params done\n");
2009 if (status != CCS_COMMAND_COMPLETE) {
2010 tmp =
2011 readb(&pccs->var.update_param.
2012 failure_cause);
2013 dev_dbg(&link->dev,
2014 "ray_cs interrupt update params failed - reason %d\n",
2015 tmp);
2016 }
2017 break;
2018 case CCS_REPORT_PARAMS:
2019 dev_dbg(&link->dev, "ray_cs interrupt report params done\n");
2020 break;
2021 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
2022 dev_dbg(&link->dev,
2023 "ray_cs interrupt CCS Update Multicast List done\n");
2024 break;
2025 case CCS_UPDATE_POWER_SAVINGS_MODE:
2026 dev_dbg(&link->dev,
2027 "ray_cs interrupt update power save mode done\n");
2028 break;
2029 case CCS_START_NETWORK:
2030 case CCS_JOIN_NETWORK:
2031 if (status == CCS_COMMAND_COMPLETE) {
2032 if (readb
2033 (&pccs->var.start_network.net_initiated) ==
2034 1) {
2035 dev_dbg(&link->dev,
2036 "ray_cs interrupt network \"%s\" started\n",
2037 local->sparm.b4.a_current_ess_id);
2038 } else {
2039 dev_dbg(&link->dev,
2040 "ray_cs interrupt network \"%s\" joined\n",
2041 local->sparm.b4.a_current_ess_id);
2042 }
2043 memcpy_fromio(&local->bss_id,
2044 pccs->var.start_network.bssid,
2045 ADDRLEN);
2046
2047 if (local->fw_ver == 0x55)
2048 local->net_default_tx_rate = 3;
2049 else
2050 local->net_default_tx_rate =
2051 readb(&pccs->var.start_network.
2052 net_default_tx_rate);
2053 local->encryption =
2054 readb(&pccs->var.start_network.encryption);
2055 if (!sniffer && (local->net_type == INFRA)
2056 && !(local->sparm.b4.a_acting_as_ap_status)) {
2057 authenticate(local);
2058 }
2059 local->card_status = CARD_ACQ_COMPLETE;
2060 } else {
2061 local->card_status = CARD_ACQ_FAILED;
2062
2063 del_timer(&local->timer);
2064 local->timer.expires = jiffies + HZ * 5;
2065 local->timer.data = (long)local;
2066 if (status == CCS_START_NETWORK) {
2067 dev_dbg(&link->dev,
2068 "ray_cs interrupt network \"%s\" start failed\n",
2069 local->sparm.b4.a_current_ess_id);
2070 local->timer.function = &start_net;
2071 } else {
2072 dev_dbg(&link->dev,
2073 "ray_cs interrupt network \"%s\" join failed\n",
2074 local->sparm.b4.a_current_ess_id);
2075 local->timer.function = &join_net;
2076 }
2077 add_timer(&local->timer);
2078 }
2079 break;
2080 case CCS_START_ASSOCIATION:
2081 if (status == CCS_COMMAND_COMPLETE) {
2082 local->card_status = CARD_ASSOC_COMPLETE;
2083 dev_dbg(&link->dev, "ray_cs association successful\n");
2084 } else {
2085 dev_dbg(&link->dev, "ray_cs association failed,\n");
2086 local->card_status = CARD_ASSOC_FAILED;
2087 join_net((u_long) local);
2088 }
2089 break;
2090 case CCS_TX_REQUEST:
2091 if (status == CCS_COMMAND_COMPLETE) {
2092 dev_dbg(&link->dev,
2093 "ray_cs interrupt tx request complete\n");
2094 } else {
2095 dev_dbg(&link->dev,
2096 "ray_cs interrupt tx request failed\n");
2097 }
2098 if (!sniffer)
2099 netif_start_queue(dev);
2100 netif_wake_queue(dev);
2101 break;
2102 case CCS_TEST_MEMORY:
2103 dev_dbg(&link->dev, "ray_cs interrupt mem test done\n");
2104 break;
2105 case CCS_SHUTDOWN:
2106 dev_dbg(&link->dev,
2107 "ray_cs interrupt Unexpected CCS returned - Shutdown\n");
2108 break;
2109 case CCS_DUMP_MEMORY:
2110 dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n");
2111 break;
2112 case CCS_START_TIMER:
2113 dev_dbg(&link->dev,
2114 "ray_cs interrupt DING - raylink timer expired\n");
2115 break;
2116 default:
2117 dev_dbg(&link->dev,
2118 "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",
2119 rcsindex, cmd);
2120 }
2121 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
2122 } else { /* It's an RCS */
2123
2124 prcs = rcs_base(local) + rcsindex;
2125
2126 switch (readb(&prcs->interrupt_id)) {
2127 case PROCESS_RX_PACKET:
2128 ray_rx(dev, local, prcs);
2129 break;
2130 case REJOIN_NET_COMPLETE:
2131 dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n");
2132 local->card_status = CARD_ACQ_COMPLETE;
2133 /* do we need to clear tx buffers CCS's? */
2134 if (local->sparm.b4.a_network_type == ADHOC) {
2135 if (!sniffer)
2136 netif_start_queue(dev);
2137 } else {
2138 memcpy_fromio(&local->bss_id,
2139 prcs->var.rejoin_net_complete.
2140 bssid, ADDRLEN);
2141 dev_dbg(&link->dev,
2142 "ray_cs new BSSID = %02x%02x%02x%02x%02x%02x\n",
2143 local->bss_id[0], local->bss_id[1],
2144 local->bss_id[2], local->bss_id[3],
2145 local->bss_id[4], local->bss_id[5]);
2146 if (!sniffer)
2147 authenticate(local);
2148 }
2149 break;
2150 case ROAMING_INITIATED:
2151 dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n");
2152 netif_stop_queue(dev);
2153 local->card_status = CARD_DOING_ACQ;
2154 break;
2155 case JAPAN_CALL_SIGN_RXD:
2156 dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n");
2157 break;
2158 default:
2159 dev_dbg(&link->dev,
2160 "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",
2161 rcsindex,
2162 (unsigned int)readb(&prcs->interrupt_id));
2163 break;
2164 }
2165 writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2166 }
2167 clear_interrupt(local);
2168 return IRQ_HANDLED;
2169 } /* ray_interrupt */
2170
2171 /*===========================================================================*/
2172 static void ray_rx(struct net_device *dev, ray_dev_t *local,
2173 struct rcs __iomem *prcs)
2174 {
2175 int rx_len;
2176 unsigned int pkt_addr;
2177 void __iomem *pmsg;
2178 pr_debug("ray_rx process rx packet\n");
2179
2180 /* Calculate address of packet within Rx buffer */
2181 pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2182 + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2183 /* Length of first packet fragment */
2184 rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2185 + readb(&prcs->var.rx_packet.rx_data_length[1]);
2186
2187 local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2188 pmsg = local->rmem + pkt_addr;
2189 switch (readb(pmsg)) {
2190 case DATA_TYPE:
2191 pr_debug("ray_rx data type\n");
2192 rx_data(dev, prcs, pkt_addr, rx_len);
2193 break;
2194 case AUTHENTIC_TYPE:
2195 pr_debug("ray_rx authentic type\n");
2196 if (sniffer)
2197 rx_data(dev, prcs, pkt_addr, rx_len);
2198 else
2199 rx_authenticate(local, prcs, pkt_addr, rx_len);
2200 break;
2201 case DEAUTHENTIC_TYPE:
2202 pr_debug("ray_rx deauth type\n");
2203 if (sniffer)
2204 rx_data(dev, prcs, pkt_addr, rx_len);
2205 else
2206 rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2207 break;
2208 case NULL_MSG_TYPE:
2209 pr_debug("ray_cs rx NULL msg\n");
2210 break;
2211 case BEACON_TYPE:
2212 pr_debug("ray_rx beacon type\n");
2213 if (sniffer)
2214 rx_data(dev, prcs, pkt_addr, rx_len);
2215
2216 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr,
2217 rx_len < sizeof(struct beacon_rx) ?
2218 rx_len : sizeof(struct beacon_rx));
2219
2220 local->beacon_rxed = 1;
2221 /* Get the statistics so the card counters never overflow */
2222 ray_get_stats(dev);
2223 break;
2224 default:
2225 pr_debug("ray_cs unknown pkt type %2x\n",
2226 (unsigned int)readb(pmsg));
2227 break;
2228 }
2229
2230 } /* end ray_rx */
2231
2232 /*===========================================================================*/
2233 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
2234 unsigned int pkt_addr, int rx_len)
2235 {
2236 struct sk_buff *skb = NULL;
2237 struct rcs __iomem *prcslink = prcs;
2238 ray_dev_t *local = netdev_priv(dev);
2239 UCHAR *rx_ptr;
2240 int total_len;
2241 int tmp;
2242 #ifdef WIRELESS_SPY
2243 int siglev = local->last_rsl;
2244 u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */
2245 #endif
2246
2247 if (!sniffer) {
2248 if (translate) {
2249 /* TBD length needs fixing for translated header */
2250 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2251 rx_len >
2252 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2253 FCS_LEN)) {
2254 pr_debug(
2255 "ray_cs invalid packet length %d received \n",
2256 rx_len);
2257 return;
2258 }
2259 } else { /* encapsulated ethernet */
2260
2261 if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2262 rx_len >
2263 (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2264 FCS_LEN)) {
2265 pr_debug(
2266 "ray_cs invalid packet length %d received \n",
2267 rx_len);
2268 return;
2269 }
2270 }
2271 }
2272 pr_debug("ray_cs rx_data packet\n");
2273 /* If fragmented packet, verify sizes of fragments add up */
2274 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2275 pr_debug("ray_cs rx'ed fragment\n");
2276 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2277 + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2278 total_len = tmp;
2279 prcslink = prcs;
2280 do {
2281 tmp -=
2282 (readb(&prcslink->var.rx_packet.rx_data_length[0])
2283 << 8)
2284 + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2285 if (readb(&prcslink->var.rx_packet.next_frag_rcs_index)
2286 == 0xFF || tmp < 0)
2287 break;
2288 prcslink = rcs_base(local)
2289 + readb(&prcslink->link_field);
2290 } while (1);
2291
2292 if (tmp < 0) {
2293 pr_debug(
2294 "ray_cs rx_data fragment lengths don't add up\n");
2295 local->stats.rx_dropped++;
2296 release_frag_chain(local, prcs);
2297 return;
2298 }
2299 } else { /* Single unfragmented packet */
2300 total_len = rx_len;
2301 }
2302
2303 skb = dev_alloc_skb(total_len + 5);
2304 if (skb == NULL) {
2305 pr_debug("ray_cs rx_data could not allocate skb\n");
2306 local->stats.rx_dropped++;
2307 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2308 release_frag_chain(local, prcs);
2309 return;
2310 }
2311 skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */
2312
2313 pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len,
2314 rx_len);
2315
2316 /************************/
2317 /* Reserve enough room for the whole damn packet. */
2318 rx_ptr = skb_put(skb, total_len);
2319 /* Copy the whole packet to sk_buff */
2320 rx_ptr +=
2321 copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2322 /* Get source address */
2323 #ifdef WIRELESS_SPY
2324 skb_copy_from_linear_data_offset(skb,
2325 offsetof(struct mac_header, addr_2),
2326 linksrcaddr, ETH_ALEN);
2327 #endif
2328 /* Now, deal with encapsulation/translation/sniffer */
2329 if (!sniffer) {
2330 if (!translate) {
2331 /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2332 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2333 skb_pull(skb, RX_MAC_HEADER_LENGTH);
2334 } else {
2335 /* Do translation */
2336 untranslate(local, skb, total_len);
2337 }
2338 } else { /* sniffer mode, so just pass whole packet */
2339 };
2340
2341 /************************/
2342 /* Now pick up the rest of the fragments if any */
2343 tmp = 17;
2344 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2345 prcslink = prcs;
2346 pr_debug("ray_cs rx_data in fragment loop\n");
2347 do {
2348 prcslink = rcs_base(local)
2349 +
2350 readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2351 rx_len =
2352 ((readb(&prcslink->var.rx_packet.rx_data_length[0])
2353 << 8)
2354 +
2355 readb(&prcslink->var.rx_packet.rx_data_length[1]))
2356 & RX_BUFF_END;
2357 pkt_addr =
2358 ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) <<
2359 8)
2360 + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2361 & RX_BUFF_END;
2362
2363 rx_ptr +=
2364 copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2365
2366 } while (tmp-- &&
2367 readb(&prcslink->var.rx_packet.next_frag_rcs_index) !=
2368 0xFF);
2369 release_frag_chain(local, prcs);
2370 }
2371
2372 skb->protocol = eth_type_trans(skb, dev);
2373 netif_rx(skb);
2374 local->stats.rx_packets++;
2375 local->stats.rx_bytes += total_len;
2376
2377 /* Gather signal strength per address */
2378 #ifdef WIRELESS_SPY
2379 /* For the Access Point or the node having started the ad-hoc net
2380 * note : ad-hoc work only in some specific configurations, but we
2381 * kludge in ray_get_wireless_stats... */
2382 if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) {
2383 /* Update statistics */
2384 /*local->wstats.qual.qual = none ? */
2385 local->wstats.qual.level = siglev;
2386 /*local->wstats.qual.noise = none ? */
2387 local->wstats.qual.updated = 0x2;
2388 }
2389 /* Now, update the spy stuff */
2390 {
2391 struct iw_quality wstats;
2392 wstats.level = siglev;
2393 /* wstats.noise = none ? */
2394 /* wstats.qual = none ? */
2395 wstats.updated = 0x2;
2396 /* Update spy records */
2397 wireless_spy_update(dev, linksrcaddr, &wstats);
2398 }
2399 #endif /* WIRELESS_SPY */
2400 } /* end rx_data */
2401
2402 /*===========================================================================*/
2403 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2404 {
2405 snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH);
2406 struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2407 __be16 type = *(__be16 *) psnap->ethertype;
2408 int delta;
2409 struct ethhdr *peth;
2410 UCHAR srcaddr[ADDRLEN];
2411 UCHAR destaddr[ADDRLEN];
2412 static UCHAR org_bridge[3] = { 0, 0, 0xf8 };
2413 static UCHAR org_1042[3] = { 0, 0, 0 };
2414
2415 memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2416 memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2417
2418 #if 0
2419 if {
2420 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
2421 DUMP_PREFIX_NONE, 16, 1,
2422 skb->data, 64, true);
2423 printk(KERN_DEBUG
2424 "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2425 ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
2426 psnap->org[0], psnap->org[1], psnap->org[2]);
2427 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data);
2428 }
2429 #endif
2430
2431 if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2432 /* not a snap type so leave it alone */
2433 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2434 psnap->dsap, psnap->ssap, psnap->ctrl);
2435
2436 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2437 peth = (struct ethhdr *)(skb->data + delta);
2438 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2439 } else { /* Its a SNAP */
2440 if (memcmp(psnap->org, org_bridge, 3) == 0) {
2441 /* EtherII and nuke the LLC */
2442 pr_debug("ray_cs untranslate Bridge encap\n");
2443 delta = RX_MAC_HEADER_LENGTH
2444 + sizeof(struct snaphdr_t) - ETH_HLEN;
2445 peth = (struct ethhdr *)(skb->data + delta);
2446 peth->h_proto = type;
2447 } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2448 switch (ntohs(type)) {
2449 case ETH_P_IPX:
2450 case ETH_P_AARP:
2451 pr_debug("ray_cs untranslate RFC IPX/AARP\n");
2452 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2453 peth = (struct ethhdr *)(skb->data + delta);
2454 peth->h_proto =
2455 htons(len - RX_MAC_HEADER_LENGTH);
2456 break;
2457 default:
2458 pr_debug("ray_cs untranslate RFC default\n");
2459 delta = RX_MAC_HEADER_LENGTH +
2460 sizeof(struct snaphdr_t) - ETH_HLEN;
2461 peth = (struct ethhdr *)(skb->data + delta);
2462 peth->h_proto = type;
2463 break;
2464 }
2465 } else {
2466 printk("ray_cs untranslate very confused by packet\n");
2467 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2468 peth = (struct ethhdr *)(skb->data + delta);
2469 peth->h_proto = type;
2470 }
2471 }
2472 /* TBD reserve skb_reserve(skb, delta); */
2473 skb_pull(skb, delta);
2474 pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta,
2475 skb->data);
2476 memcpy(peth->h_dest, destaddr, ADDRLEN);
2477 memcpy(peth->h_source, srcaddr, ADDRLEN);
2478 #if 0
2479 {
2480 int i;
2481 printk(KERN_DEBUG "skb->data after untranslate:");
2482 for (i = 0; i < 64; i++)
2483 printk("%02x ", skb->data[i]);
2484 printk("\n");
2485 }
2486 #endif
2487 } /* end untranslate */
2488
2489 /*===========================================================================*/
2490 /* Copy data from circular receive buffer to PC memory.
2491 * dest = destination address in PC memory
2492 * pkt_addr = source address in receive buffer
2493 * len = length of packet to copy
2494 */
2495 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr,
2496 int length)
2497 {
2498 int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2499 if (wrap_bytes <= 0) {
2500 memcpy_fromio(dest, local->rmem + pkt_addr, length);
2501 } else { /* Packet wrapped in circular buffer */
2502
2503 memcpy_fromio(dest, local->rmem + pkt_addr,
2504 length - wrap_bytes);
2505 memcpy_fromio(dest + length - wrap_bytes, local->rmem,
2506 wrap_bytes);
2507 }
2508 return length;
2509 }
2510
2511 /*===========================================================================*/
2512 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs)
2513 {
2514 struct rcs __iomem *prcslink = prcs;
2515 int tmp = 17;
2516 unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2517
2518 while (tmp--) {
2519 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2520 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2521 pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n",
2522 rcsindex);
2523 break;
2524 }
2525 prcslink = rcs_base(local) + rcsindex;
2526 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2527 }
2528 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2529 }
2530
2531 /*===========================================================================*/
2532 static void authenticate(ray_dev_t *local)
2533 {
2534 struct pcmcia_device *link = local->finder;
2535 dev_dbg(&link->dev, "ray_cs Starting authentication.\n");
2536 if (!(pcmcia_dev_present(link))) {
2537 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n");
2538 return;
2539 }
2540
2541 del_timer(&local->timer);
2542 if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2543 local->timer.function = &join_net;
2544 } else {
2545 local->timer.function = &authenticate_timeout;
2546 }
2547 local->timer.expires = jiffies + HZ * 2;
2548 local->timer.data = (long)local;
2549 add_timer(&local->timer);
2550 local->authentication_state = AWAITING_RESPONSE;
2551 } /* end authenticate */
2552
2553 /*===========================================================================*/
2554 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2555 unsigned int pkt_addr, int rx_len)
2556 {
2557 UCHAR buff[256];
2558 struct rx_msg *msg = (struct rx_msg *)buff;
2559
2560 del_timer(&local->timer);
2561
2562 copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2563 /* if we are trying to get authenticated */
2564 if (local->sparm.b4.a_network_type == ADHOC) {
2565 pr_debug("ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n",
2566 msg->var[0], msg->var[1], msg->var[2], msg->var[3],
2567 msg->var[4], msg->var[5]);
2568 if (msg->var[2] == 1) {
2569 pr_debug("ray_cs Sending authentication response.\n");
2570 if (!build_auth_frame
2571 (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2572 local->authentication_state = NEED_TO_AUTH;
2573 memcpy(local->auth_id, msg->mac.addr_2,
2574 ADDRLEN);
2575 }
2576 }
2577 } else { /* Infrastructure network */
2578
2579 if (local->authentication_state == AWAITING_RESPONSE) {
2580 /* Verify authentication sequence #2 and success */
2581 if (msg->var[2] == 2) {
2582 if ((msg->var[3] | msg->var[4]) == 0) {
2583 pr_debug("Authentication successful\n");
2584 local->card_status = CARD_AUTH_COMPLETE;
2585 associate(local);
2586 local->authentication_state =
2587 AUTHENTICATED;
2588 } else {
2589 pr_debug("Authentication refused\n");
2590 local->card_status = CARD_AUTH_REFUSED;
2591 join_net((u_long) local);
2592 local->authentication_state =
2593 UNAUTHENTICATED;
2594 }
2595 }
2596 }
2597 }
2598
2599 } /* end rx_authenticate */
2600
2601 /*===========================================================================*/
2602 static void associate(ray_dev_t *local)
2603 {
2604 struct ccs __iomem *pccs;
2605 struct pcmcia_device *link = local->finder;
2606 struct net_device *dev = link->priv;
2607 int ccsindex;
2608 if (!(pcmcia_dev_present(link))) {
2609 dev_dbg(&link->dev, "ray_cs associate - device not present\n");
2610 return;
2611 }
2612 /* If no tx buffers available, return */
2613 if ((ccsindex = get_free_ccs(local)) < 0) {
2614 /* TBD should never be here but... what if we are? */
2615 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n");
2616 return;
2617 }
2618 dev_dbg(&link->dev, "ray_cs Starting association with access point\n");
2619 pccs = ccs_base(local) + ccsindex;
2620 /* fill in the CCS */
2621 writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2622 /* Interrupt the firmware to process the command */
2623 if (interrupt_ecf(local, ccsindex)) {
2624 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
2625 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2626
2627 del_timer(&local->timer);
2628 local->timer.expires = jiffies + HZ * 2;
2629 local->timer.data = (long)local;
2630 local->timer.function = &join_net;
2631 add_timer(&local->timer);
2632 local->card_status = CARD_ASSOC_FAILED;
2633 return;
2634 }
2635 if (!sniffer)
2636 netif_start_queue(dev);
2637
2638 } /* end associate */
2639
2640 /*===========================================================================*/
2641 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2642 unsigned int pkt_addr, int rx_len)
2643 {
2644 /* UCHAR buff[256];
2645 struct rx_msg *msg = (struct rx_msg *)buff;
2646 */
2647 pr_debug("Deauthentication frame received\n");
2648 local->authentication_state = UNAUTHENTICATED;
2649 /* Need to reauthenticate or rejoin depending on reason code */
2650 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2651 */
2652 }
2653
2654 /*===========================================================================*/
2655 static void clear_interrupt(ray_dev_t *local)
2656 {
2657 writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2658 }
2659
2660 /*===========================================================================*/
2661 #ifdef CONFIG_PROC_FS
2662 #define MAXDATA (PAGE_SIZE - 80)
2663
2664 static char *card_status[] = {
2665 "Card inserted - uninitialized", /* 0 */
2666 "Card not downloaded", /* 1 */
2667 "Waiting for download parameters", /* 2 */
2668 "Card doing acquisition", /* 3 */
2669 "Acquisition complete", /* 4 */
2670 "Authentication complete", /* 5 */
2671 "Association complete", /* 6 */
2672 "???", "???", "???", "???", /* 7 8 9 10 undefined */
2673 "Card init error", /* 11 */
2674 "Download parameters error", /* 12 */
2675 "???", /* 13 */
2676 "Acquisition failed", /* 14 */
2677 "Authentication refused", /* 15 */
2678 "Association failed" /* 16 */
2679 };
2680
2681 static char *nettype[] = { "Adhoc", "Infra " };
2682 static char *framing[] = { "Encapsulation", "Translation" }
2683
2684 ;
2685 /*===========================================================================*/
2686 static int ray_cs_proc_show(struct seq_file *m, void *v)
2687 {
2688 /* Print current values which are not available via other means
2689 * eg ifconfig
2690 */
2691 int i;
2692 struct pcmcia_device *link;
2693 struct net_device *dev;
2694 ray_dev_t *local;
2695 UCHAR *p;
2696 struct freq_hop_element *pfh;
2697 UCHAR c[33];
2698
2699 link = this_device;
2700 if (!link)
2701 return 0;
2702 dev = (struct net_device *)link->priv;
2703 if (!dev)
2704 return 0;
2705 local = netdev_priv(dev);
2706 if (!local)
2707 return 0;
2708
2709 seq_puts(m, "Raylink Wireless LAN driver status\n");
2710 seq_printf(m, "%s\n", rcsid);
2711 /* build 4 does not report version, and field is 0x55 after memtest */
2712 seq_puts(m, "Firmware version = ");
2713 if (local->fw_ver == 0x55)
2714 seq_puts(m, "4 - Use dump_cis for more details\n");
2715 else
2716 seq_printf(m, "%2d.%02d.%02d\n",
2717 local->fw_ver, local->fw_bld, local->fw_var);
2718
2719 for (i = 0; i < 32; i++)
2720 c[i] = local->sparm.b5.a_current_ess_id[i];
2721 c[32] = 0;
2722 seq_printf(m, "%s network ESSID = \"%s\"\n",
2723 nettype[local->sparm.b5.a_network_type], c);
2724
2725 p = local->bss_id;
2726 seq_printf(m, "BSSID = %pM\n", p);
2727
2728 seq_printf(m, "Country code = %d\n",
2729 local->sparm.b5.a_curr_country_code);
2730
2731 i = local->card_status;
2732 if (i < 0)
2733 i = 10;
2734 if (i > 16)
2735 i = 10;
2736 seq_printf(m, "Card status = %s\n", card_status[i]);
2737
2738 seq_printf(m, "Framing mode = %s\n", framing[translate]);
2739
2740 seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl);
2741
2742 if (local->beacon_rxed) {
2743 /* Pull some fields out of last beacon received */
2744 seq_printf(m, "Beacon Interval = %d Kus\n",
2745 local->last_bcn.beacon_intvl[0]
2746 + 256 * local->last_bcn.beacon_intvl[1]);
2747
2748 p = local->last_bcn.elements;
2749 if (p[0] == C_ESSID_ELEMENT_ID)
2750 p += p[1] + 2;
2751 else {
2752 seq_printf(m,
2753 "Parse beacon failed at essid element id = %d\n",
2754 p[0]);
2755 return 0;
2756 }
2757
2758 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2759 seq_puts(m, "Supported rate codes = ");
2760 for (i = 2; i < p[1] + 2; i++)
2761 seq_printf(m, "0x%02x ", p[i]);
2762 seq_putc(m, '\n');
2763 p += p[1] + 2;
2764 } else {
2765 seq_puts(m, "Parse beacon failed at rates element\n");
2766 return 0;
2767 }
2768
2769 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2770 pfh = (struct freq_hop_element *)p;
2771 seq_printf(m, "Hop dwell = %d Kus\n",
2772 pfh->dwell_time[0] +
2773 256 * pfh->dwell_time[1]);
2774 seq_printf(m, "Hop set = %d \n",
2775 pfh->hop_set);
2776 seq_printf(m, "Hop pattern = %d \n",
2777 pfh->hop_pattern);
2778 seq_printf(m, "Hop index = %d \n",
2779 pfh->hop_index);
2780 p += p[1] + 2;
2781 } else {
2782 seq_puts(m,
2783 "Parse beacon failed at FH param element\n");
2784 return 0;
2785 }
2786 } else {
2787 seq_puts(m, "No beacons received\n");
2788 }
2789 return 0;
2790 }
2791
2792 static int ray_cs_proc_open(struct inode *inode, struct file *file)
2793 {
2794 return single_open(file, ray_cs_proc_show, NULL);
2795 }
2796
2797 static const struct file_operations ray_cs_proc_fops = {
2798 .owner = THIS_MODULE,
2799 .open = ray_cs_proc_open,
2800 .read = seq_read,
2801 .llseek = seq_lseek,
2802 .release = single_release,
2803 };
2804 #endif
2805 /*===========================================================================*/
2806 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2807 {
2808 int addr;
2809 struct ccs __iomem *pccs;
2810 struct tx_msg __iomem *ptx;
2811 int ccsindex;
2812
2813 /* If no tx buffers available, return */
2814 if ((ccsindex = get_free_tx_ccs(local)) < 0) {
2815 pr_debug("ray_cs send authenticate - No free tx ccs\n");
2816 return -1;
2817 }
2818
2819 pccs = ccs_base(local) + ccsindex;
2820
2821 /* Address in card space */
2822 addr = TX_BUF_BASE + (ccsindex << 11);
2823 /* fill in the CCS */
2824 writeb(CCS_TX_REQUEST, &pccs->cmd);
2825 writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2826 writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2827 writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2828 writeb(TX_AUTHENTICATE_LENGTH_LSB,
2829 pccs->var.tx_request.tx_data_length + 1);
2830 writeb(0, &pccs->var.tx_request.pow_sav_mode);
2831
2832 ptx = local->sram + addr;
2833 /* fill in the mac header */
2834 writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2835 writeb(0, &ptx->mac.frame_ctl_2);
2836
2837 memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2838 memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2839 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2840
2841 /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2842 memset_io(ptx->var, 0, 6);
2843 writeb(auth_type & 0xff, ptx->var + 2);
2844
2845 /* Interrupt the firmware to process the command */
2846 if (interrupt_ecf(local, ccsindex)) {
2847 pr_debug(
2848 "ray_cs send authentication request failed - ECF not ready for intr\n");
2849 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2850 return -1;
2851 }
2852 return 0;
2853 } /* End build_auth_frame */
2854
2855 /*===========================================================================*/
2856 #ifdef CONFIG_PROC_FS
2857 static ssize_t ray_cs_essid_proc_write(struct file *file,
2858 const char __user *buffer, size_t count, loff_t *pos)
2859 {
2860 static char proc_essid[33];
2861 unsigned int len = count;
2862
2863 if (len > 32)
2864 len = 32;
2865 memset(proc_essid, 0, 33);
2866 if (copy_from_user(proc_essid, buffer, len))
2867 return -EFAULT;
2868 essid = proc_essid;
2869 return count;
2870 }
2871
2872 static const struct file_operations ray_cs_essid_proc_fops = {
2873 .owner = THIS_MODULE,
2874 .write = ray_cs_essid_proc_write,
2875 };
2876
2877 static ssize_t int_proc_write(struct file *file, const char __user *buffer,
2878 size_t count, loff_t *pos)
2879 {
2880 static char proc_number[10];
2881 char *p;
2882 int nr, len;
2883
2884 if (!count)
2885 return 0;
2886
2887 if (count > 9)
2888 return -EINVAL;
2889 if (copy_from_user(proc_number, buffer, count))
2890 return -EFAULT;
2891 p = proc_number;
2892 nr = 0;
2893 len = count;
2894 do {
2895 unsigned int c = *p - '0';
2896 if (c > 9)
2897 return -EINVAL;
2898 nr = nr * 10 + c;
2899 p++;
2900 } while (--len);
2901 *(int *)PDE(file->f_path.dentry->d_inode)->data = nr;
2902 return count;
2903 }
2904
2905 static const struct file_operations int_proc_fops = {
2906 .owner = THIS_MODULE,
2907 .write = int_proc_write,
2908 };
2909 #endif
2910
2911 static struct pcmcia_device_id ray_ids[] = {
2912 PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2913 PCMCIA_DEVICE_NULL,
2914 };
2915
2916 MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2917
2918 static struct pcmcia_driver ray_driver = {
2919 .owner = THIS_MODULE,
2920 .drv = {
2921 .name = "ray_cs",
2922 },
2923 .probe = ray_probe,
2924 .remove = ray_detach,
2925 .id_table = ray_ids,
2926 .suspend = ray_suspend,
2927 .resume = ray_resume,
2928 };
2929
2930 static int __init init_ray_cs(void)
2931 {
2932 int rc;
2933
2934 pr_debug("%s\n", rcsid);
2935 rc = pcmcia_register_driver(&ray_driver);
2936 pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n",
2937 rc);
2938
2939 #ifdef CONFIG_PROC_FS
2940 proc_mkdir("driver/ray_cs", NULL);
2941
2942 proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops);
2943 proc_create("driver/ray_cs/essid", S_IWUSR, NULL, &ray_cs_essid_proc_fops);
2944 proc_create_data("driver/ray_cs/net_type", S_IWUSR, NULL, &int_proc_fops, &net_type);
2945 proc_create_data("driver/ray_cs/translate", S_IWUSR, NULL, &int_proc_fops, &translate);
2946 #endif
2947 if (translate != 0)
2948 translate = 1;
2949 return 0;
2950 } /* init_ray_cs */
2951
2952 /*===========================================================================*/
2953
2954 static void __exit exit_ray_cs(void)
2955 {
2956 pr_debug("ray_cs: cleanup_module\n");
2957
2958 #ifdef CONFIG_PROC_FS
2959 remove_proc_entry("driver/ray_cs/ray_cs", NULL);
2960 remove_proc_entry("driver/ray_cs/essid", NULL);
2961 remove_proc_entry("driver/ray_cs/net_type", NULL);
2962 remove_proc_entry("driver/ray_cs/translate", NULL);
2963 remove_proc_entry("driver/ray_cs", NULL);
2964 #endif
2965
2966 pcmcia_unregister_driver(&ray_driver);
2967 } /* exit_ray_cs */
2968
2969 module_init(init_ray_cs);
2970 module_exit(exit_ray_cs);
2971
2972 /*===========================================================================*/
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