Version:  2.0.40 2.2.26 2.4.37 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10

Linux/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, see <http://www.gnu.org/licenses/>.
 21  *
 22  * Changes:
 23  * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 08/08/2000
 24  * - reorganize kmallocs in ray_attach, checking all for failure
 25  *   and releasing the previous allocations if one fails
 26  *
 27  * Daniele Bellucci <bellucda@tiscali.it> - 07/10/2003
 28  * - Audit copy_to_user in ioctl(SIOCGIWESSID)
 29  *
 30 =============================================================================*/
 31 
 32 #include <linux/module.h>
 33 #include <linux/kernel.h>
 34 #include <linux/proc_fs.h>
 35 #include <linux/ptrace.h>
 36 #include <linux/seq_file.h>
 37 #include <linux/string.h>
 38 #include <linux/timer.h>
 39 #include <linux/init.h>
 40 #include <linux/netdevice.h>
 41 #include <linux/etherdevice.h>
 42 #include <linux/if_arp.h>
 43 #include <linux/ioport.h>
 44 #include <linux/skbuff.h>
 45 #include <linux/ieee80211.h>
 46 
 47 #include <pcmcia/cistpl.h>
 48 #include <pcmcia/cisreg.h>
 49 #include <pcmcia/ds.h>
 50 
 51 #include <linux/wireless.h>
 52 #include <net/iw_handler.h>
 53 
 54 #include <asm/io.h>
 55 #include <asm/byteorder.h>
 56 #include <linux/uaccess.h>
 57 
 58 /* Warning : these stuff will slow down the driver... */
 59 #define WIRELESS_SPY            /* Enable spying addresses */
 60 /* Definitions we need for spy */
 61 typedef struct iw_statistics iw_stats;
 62 typedef u_char mac_addr[ETH_ALEN];      /* Hardware address */
 63 
 64 #include "rayctl.h"
 65 #include "ray_cs.h"
 66 
 67 
 68 /** Prototypes based on PCMCIA skeleton driver *******************************/
 69 static int ray_config(struct pcmcia_device *link);
 70 static void ray_release(struct pcmcia_device *link);
 71 static void ray_detach(struct pcmcia_device *p_dev);
 72 
 73 /***** Prototypes indicated by device structure ******************************/
 74 static int ray_dev_close(struct net_device *dev);
 75 static int ray_dev_config(struct net_device *dev, struct ifmap *map);
 76 static struct net_device_stats *ray_get_stats(struct net_device *dev);
 77 static int ray_dev_init(struct net_device *dev);
 78 
 79 static int ray_open(struct net_device *dev);
 80 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
 81                                             struct net_device *dev);
 82 static void set_multicast_list(struct net_device *dev);
 83 static void ray_update_multi_list(struct net_device *dev, int all);
 84 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
 85                            unsigned char *data, int len);
 86 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
 87                              UCHAR msg_type, unsigned char *data);
 88 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
 89 static iw_stats *ray_get_wireless_stats(struct net_device *dev);
 90 static const struct iw_handler_def ray_handler_def;
 91 
 92 /***** Prototypes for raylink functions **************************************/
 93 static void authenticate(ray_dev_t *local);
 94 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
 95 static void authenticate_timeout(u_long);
 96 static int get_free_ccs(ray_dev_t *local);
 97 static int get_free_tx_ccs(ray_dev_t *local);
 98 static void init_startup_params(ray_dev_t *local);
 99 static int parse_addr(char *in_str, UCHAR *out);
100 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type);
101 static int ray_init(struct net_device *dev);
102 static int interrupt_ecf(ray_dev_t *local, int ccs);
103 static void ray_reset(struct net_device *dev);
104 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
105 static void verify_dl_startup(u_long);
106 
107 /* Prototypes for interrpt time functions **********************************/
108 static irqreturn_t ray_interrupt(int reg, void *dev_id);
109 static void clear_interrupt(ray_dev_t *local);
110 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
111                               unsigned int pkt_addr, int rx_len);
112 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
113 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
114 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
115 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
116                             unsigned int pkt_addr, int rx_len);
117 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
118                     unsigned int pkt_addr, int rx_len);
119 static void associate(ray_dev_t *local);
120 
121 /* Card command functions */
122 static int dl_startup_params(struct net_device *dev);
123 static void join_net(u_long local);
124 static void start_net(u_long local);
125 /* void start_net(ray_dev_t *local); */
126 
127 /*===========================================================================*/
128 /* Parameters that can be set with 'insmod' */
129 
130 /* ADHOC=0, Infrastructure=1 */
131 static int net_type = ADHOC;
132 
133 /* Hop dwell time in Kus (1024 us units defined by 802.11) */
134 static int hop_dwell = 128;
135 
136 /* Beacon period in Kus */
137 static int beacon_period = 256;
138 
139 /* power save mode (0 = off, 1 = save power) */
140 static int psm;
141 
142 /* String for network's Extended Service Set ID. 32 Characters max */
143 static char *essid;
144 
145 /* Default to encapsulation unless translation requested */
146 static bool translate = true;
147 
148 static int country = USA;
149 
150 static int sniffer;
151 
152 static int bc;
153 
154 /* 48 bit physical card address if overriding card's real physical
155  * address is required.  Since IEEE 802.11 addresses are 48 bits
156  * like ethernet, an int can't be used, so a string is used. To
157  * allow use of addresses starting with a decimal digit, the first
158  * character must be a letter and will be ignored. This letter is
159  * followed by up to 12 hex digits which are the address.  If less
160  * than 12 digits are used, the address will be left filled with 0's.
161  * Note that bit 0 of the first byte is the broadcast bit, and evil
162  * things will happen if it is not 0 in a card address.
163  */
164 static char *phy_addr = NULL;
165 
166 static unsigned int ray_mem_speed = 500;
167 
168 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
169 static struct pcmcia_device *this_device = NULL;
170 
171 MODULE_AUTHOR("Corey Thomas <corey@world.std.com>");
172 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
173 MODULE_LICENSE("GPL");
174 
175 module_param(net_type, int, 0);
176 module_param(hop_dwell, int, 0);
177 module_param(beacon_period, int, 0);
178 module_param(psm, int, 0);
179 module_param(essid, charp, 0);
180 module_param(translate, bool, 0);
181 module_param(country, int, 0);
182 module_param(sniffer, int, 0);
183 module_param(bc, int, 0);
184 module_param(phy_addr, charp, 0);
185 module_param(ray_mem_speed, int, 0);
186 
187 static const UCHAR b5_default_startup_parms[] = {
188         0, 0,                   /* Adhoc station */
189         'L', 'I', 'N', 'U', 'X', 0, 0, 0,       /* 32 char ESSID */
190         0, 0, 0, 0, 0, 0, 0, 0,
191         0, 0, 0, 0, 0, 0, 0, 0,
192         0, 0, 0, 0, 0, 0, 0, 0,
193         1, 0,                   /* Active scan, CA Mode */
194         0, 0, 0, 0, 0, 0,       /* No default MAC addr  */
195         0x7f, 0xff,             /* Frag threshold */
196         0x00, 0x80,             /* Hop time 128 Kus */
197         0x01, 0x00,             /* Beacon period 256 Kus */
198         0x01, 0x07, 0xa3,       /* DTIM, retries, ack timeout */
199         0x1d, 0x82, 0x4e,       /* SIFS, DIFS, PIFS */
200         0x7f, 0xff,             /* RTS threshold */
201         0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
202         0x05,                   /* assoc resp timeout thresh */
203         0x08, 0x02, 0x08,       /* adhoc, infra, super cycle max */
204         0,                      /* Promiscuous mode */
205         0x0c, 0x0bd,            /* Unique word */
206         0x32,                   /* Slot time */
207         0xff, 0xff,             /* roam-low snr, low snr count */
208         0x05, 0xff,             /* Infra, adhoc missed bcn thresh */
209         0x01, 0x0b, 0x4f,       /* USA, hop pattern, hop pat length */
210 /* b4 - b5 differences start here */
211         0x00, 0x3f,             /* CW max */
212         0x00, 0x0f,             /* CW min */
213         0x04, 0x08,             /* Noise gain, limit offset */
214         0x28, 0x28,             /* det rssi, med busy offsets */
215         7,                      /* det sync thresh */
216         0, 2, 2,                /* test mode, min, max */
217         0,                      /* allow broadcast SSID probe resp */
218         0, 0,                   /* privacy must start, can join */
219         2, 0, 0, 0, 0, 0, 0, 0  /* basic rate set */
220 };
221 
222 static const UCHAR b4_default_startup_parms[] = {
223         0, 0,                   /* Adhoc station */
224         'L', 'I', 'N', 'U', 'X', 0, 0, 0,       /* 32 char ESSID */
225         0, 0, 0, 0, 0, 0, 0, 0,
226         0, 0, 0, 0, 0, 0, 0, 0,
227         0, 0, 0, 0, 0, 0, 0, 0,
228         1, 0,                   /* Active scan, CA Mode */
229         0, 0, 0, 0, 0, 0,       /* No default MAC addr  */
230         0x7f, 0xff,             /* Frag threshold */
231         0x02, 0x00,             /* Hop time */
232         0x00, 0x01,             /* Beacon period */
233         0x01, 0x07, 0xa3,       /* DTIM, retries, ack timeout */
234         0x1d, 0x82, 0xce,       /* SIFS, DIFS, PIFS */
235         0x7f, 0xff,             /* RTS threshold */
236         0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
237         0x05,                   /* assoc resp timeout thresh */
238         0x04, 0x02, 0x4,        /* adhoc, infra, super cycle max */
239         0,                      /* Promiscuous mode */
240         0x0c, 0x0bd,            /* Unique word */
241         0x4e,                   /* Slot time (TBD seems wrong) */
242         0xff, 0xff,             /* roam-low snr, low snr count */
243         0x05, 0xff,             /* Infra, adhoc missed bcn thresh */
244         0x01, 0x0b, 0x4e,       /* USA, hop pattern, hop pat length */
245 /* b4 - b5 differences start here */
246         0x3f, 0x0f,             /* CW max, min */
247         0x04, 0x08,             /* Noise gain, limit offset */
248         0x28, 0x28,             /* det rssi, med busy offsets */
249         7,                      /* det sync thresh */
250         0, 2, 2                 /* test mode, min, max */
251 };
252 
253 /*===========================================================================*/
254 static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 };
255 
256 static const char hop_pattern_length[] = { 1,
257         USA_HOP_MOD, EUROPE_HOP_MOD,
258         JAPAN_HOP_MOD, KOREA_HOP_MOD,
259         SPAIN_HOP_MOD, FRANCE_HOP_MOD,
260         ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
261         JAPAN_TEST_HOP_MOD
262 };
263 
264 static const char rcsid[] =
265     "Raylink/WebGear wireless LAN - Corey <Thomas corey@world.std.com>";
266 
267 static const struct net_device_ops ray_netdev_ops = {
268         .ndo_init               = ray_dev_init,
269         .ndo_open               = ray_open,
270         .ndo_stop               = ray_dev_close,
271         .ndo_start_xmit         = ray_dev_start_xmit,
272         .ndo_set_config         = ray_dev_config,
273         .ndo_get_stats          = ray_get_stats,
274         .ndo_set_rx_mode        = set_multicast_list,
275         .ndo_set_mac_address    = eth_mac_addr,
276         .ndo_validate_addr      = eth_validate_addr,
277 };
278 
279 static int ray_probe(struct pcmcia_device *p_dev)
280 {
281         ray_dev_t *local;
282         struct net_device *dev;
283 
284         dev_dbg(&p_dev->dev, "ray_attach()\n");
285 
286         /* Allocate space for private device-specific data */
287         dev = alloc_etherdev(sizeof(ray_dev_t));
288         if (!dev)
289                 goto fail_alloc_dev;
290 
291         local = netdev_priv(dev);
292         local->finder = p_dev;
293 
294         /* The io structure describes IO port mapping. None used here */
295         p_dev->resource[0]->end = 0;
296         p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
297 
298         /* General socket configuration */
299         p_dev->config_flags |= CONF_ENABLE_IRQ;
300         p_dev->config_index = 1;
301 
302         p_dev->priv = dev;
303 
304         local->finder = p_dev;
305         local->card_status = CARD_INSERTED;
306         local->authentication_state = UNAUTHENTICATED;
307         local->num_multi = 0;
308         dev_dbg(&p_dev->dev, "ray_attach p_dev = %p,  dev = %p,  local = %p, intr = %p\n",
309               p_dev, dev, local, &ray_interrupt);
310 
311         /* Raylink entries in the device structure */
312         dev->netdev_ops = &ray_netdev_ops;
313         dev->wireless_handlers = &ray_handler_def;
314 #ifdef WIRELESS_SPY
315         local->wireless_data.spy_data = &local->spy_data;
316         dev->wireless_data = &local->wireless_data;
317 #endif /* WIRELESS_SPY */
318 
319 
320         dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n");
321         netif_stop_queue(dev);
322 
323         init_timer(&local->timer);
324 
325         this_device = p_dev;
326         return ray_config(p_dev);
327 
328 fail_alloc_dev:
329         return -ENOMEM;
330 } /* ray_attach */
331 
332 static void ray_detach(struct pcmcia_device *link)
333 {
334         struct net_device *dev;
335         ray_dev_t *local;
336 
337         dev_dbg(&link->dev, "ray_detach\n");
338 
339         this_device = NULL;
340         dev = link->priv;
341 
342         ray_release(link);
343 
344         local = netdev_priv(dev);
345         del_timer_sync(&local->timer);
346 
347         if (link->priv) {
348                 unregister_netdev(dev);
349                 free_netdev(dev);
350         }
351         dev_dbg(&link->dev, "ray_cs ray_detach ending\n");
352 } /* ray_detach */
353 
354 #define MAX_TUPLE_SIZE 128
355 static int ray_config(struct pcmcia_device *link)
356 {
357         int ret = 0;
358         int i;
359         struct net_device *dev = (struct net_device *)link->priv;
360         ray_dev_t *local = netdev_priv(dev);
361 
362         dev_dbg(&link->dev, "ray_config\n");
363 
364         /* Determine card type and firmware version */
365         printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n",
366                link->prod_id[0] ? link->prod_id[0] : " ",
367                link->prod_id[1] ? link->prod_id[1] : " ",
368                link->prod_id[2] ? link->prod_id[2] : " ",
369                link->prod_id[3] ? link->prod_id[3] : " ");
370 
371         /* Now allocate an interrupt line.  Note that this does not
372            actually assign a handler to the interrupt.
373          */
374         ret = pcmcia_request_irq(link, ray_interrupt);
375         if (ret)
376                 goto failed;
377         dev->irq = link->irq;
378 
379         ret = pcmcia_enable_device(link);
380         if (ret)
381                 goto failed;
382 
383 /*** Set up 32k window for shared memory (transmit and control) ************/
384         link->resource[2]->flags |= WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
385         link->resource[2]->start = 0;
386         link->resource[2]->end = 0x8000;
387         ret = pcmcia_request_window(link, link->resource[2], ray_mem_speed);
388         if (ret)
389                 goto failed;
390         ret = pcmcia_map_mem_page(link, link->resource[2], 0);
391         if (ret)
392                 goto failed;
393         local->sram = ioremap(link->resource[2]->start,
394                         resource_size(link->resource[2]));
395 
396 /*** Set up 16k window for shared memory (receive buffer) ***************/
397         link->resource[3]->flags |=
398             WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
399         link->resource[3]->start = 0;
400         link->resource[3]->end = 0x4000;
401         ret = pcmcia_request_window(link, link->resource[3], ray_mem_speed);
402         if (ret)
403                 goto failed;
404         ret = pcmcia_map_mem_page(link, link->resource[3], 0x8000);
405         if (ret)
406                 goto failed;
407         local->rmem = ioremap(link->resource[3]->start,
408                         resource_size(link->resource[3]));
409 
410 /*** Set up window for attribute memory ***********************************/
411         link->resource[4]->flags |=
412             WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
413         link->resource[4]->start = 0;
414         link->resource[4]->end = 0x1000;
415         ret = pcmcia_request_window(link, link->resource[4], ray_mem_speed);
416         if (ret)
417                 goto failed;
418         ret = pcmcia_map_mem_page(link, link->resource[4], 0);
419         if (ret)
420                 goto failed;
421         local->amem = ioremap(link->resource[4]->start,
422                         resource_size(link->resource[4]));
423 
424         dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram);
425         dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem);
426         dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem);
427         if (ray_init(dev) < 0) {
428                 ray_release(link);
429                 return -ENODEV;
430         }
431 
432         SET_NETDEV_DEV(dev, &link->dev);
433         i = register_netdev(dev);
434         if (i != 0) {
435                 printk("ray_config register_netdev() failed\n");
436                 ray_release(link);
437                 return i;
438         }
439 
440         printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n",
441                dev->name, dev->irq, dev->dev_addr);
442 
443         return 0;
444 
445 failed:
446         ray_release(link);
447         return -ENODEV;
448 } /* ray_config */
449 
450 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
451 {
452         return dev->sram + CCS_BASE;
453 }
454 
455 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
456 {
457         /*
458          * This looks nonsensical, since there is a separate
459          * RCS_BASE. But the difference between a "struct rcs"
460          * and a "struct ccs" ends up being in the _index_ off
461          * the base, so the base pointer is the same for both
462          * ccs/rcs.
463          */
464         return dev->sram + CCS_BASE;
465 }
466 
467 /*===========================================================================*/
468 static int ray_init(struct net_device *dev)
469 {
470         int i;
471         UCHAR *p;
472         struct ccs __iomem *pccs;
473         ray_dev_t *local = netdev_priv(dev);
474         struct pcmcia_device *link = local->finder;
475         dev_dbg(&link->dev, "ray_init(0x%p)\n", dev);
476         if (!(pcmcia_dev_present(link))) {
477                 dev_dbg(&link->dev, "ray_init - device not present\n");
478                 return -1;
479         }
480 
481         local->net_type = net_type;
482         local->sta_type = TYPE_STA;
483 
484         /* Copy the startup results to local memory */
485         memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,
486                       sizeof(struct startup_res_6));
487 
488         /* Check Power up test status and get mac address from card */
489         if (local->startup_res.startup_word != 0x80) {
490                 printk(KERN_INFO "ray_init ERROR card status = %2x\n",
491                        local->startup_res.startup_word);
492                 local->card_status = CARD_INIT_ERROR;
493                 return -1;
494         }
495 
496         local->fw_ver = local->startup_res.firmware_version[0];
497         local->fw_bld = local->startup_res.firmware_version[1];
498         local->fw_var = local->startup_res.firmware_version[2];
499         dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver,
500               local->fw_bld);
501 
502         local->tib_length = 0x20;
503         if ((local->fw_ver == 5) && (local->fw_bld >= 30))
504                 local->tib_length = local->startup_res.tib_length;
505         dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length);
506         /* Initialize CCS's to buffer free state */
507         pccs = ccs_base(local);
508         for (i = 0; i < NUMBER_OF_CCS; i++) {
509                 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
510         }
511         init_startup_params(local);
512 
513         /* copy mac address to startup parameters */
514         if (parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) {
515                 p = local->sparm.b4.a_mac_addr;
516         } else {
517                 memcpy(&local->sparm.b4.a_mac_addr,
518                        &local->startup_res.station_addr, ADDRLEN);
519                 p = local->sparm.b4.a_mac_addr;
520         }
521 
522         clear_interrupt(local); /* Clear any interrupt from the card */
523         local->card_status = CARD_AWAITING_PARAM;
524         dev_dbg(&link->dev, "ray_init ending\n");
525         return 0;
526 } /* ray_init */
527 
528 /*===========================================================================*/
529 /* Download startup parameters to the card and command it to read them       */
530 static int dl_startup_params(struct net_device *dev)
531 {
532         int ccsindex;
533         ray_dev_t *local = netdev_priv(dev);
534         struct ccs __iomem *pccs;
535         struct pcmcia_device *link = local->finder;
536 
537         dev_dbg(&link->dev, "dl_startup_params entered\n");
538         if (!(pcmcia_dev_present(link))) {
539                 dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n");
540                 return -1;
541         }
542 
543         /* Copy parameters to host to ECF area */
544         if (local->fw_ver == 0x55)
545                 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
546                             sizeof(struct b4_startup_params));
547         else
548                 memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
549                             sizeof(struct b5_startup_params));
550 
551         /* Fill in the CCS fields for the ECF */
552         if ((ccsindex = get_free_ccs(local)) < 0)
553                 return -1;
554         local->dl_param_ccs = ccsindex;
555         pccs = ccs_base(local) + ccsindex;
556         writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
557         dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n",
558               local->dl_param_ccs);
559         /* Interrupt the firmware to process the command */
560         if (interrupt_ecf(local, ccsindex)) {
561                 printk(KERN_INFO "ray dl_startup_params failed - "
562                        "ECF not ready for intr\n");
563                 local->card_status = CARD_DL_PARAM_ERROR;
564                 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
565                 return -2;
566         }
567         local->card_status = CARD_DL_PARAM;
568         /* Start kernel timer to wait for dl startup to complete. */
569         local->timer.expires = jiffies + HZ / 2;
570         local->timer.data = (long)local;
571         local->timer.function = verify_dl_startup;
572         add_timer(&local->timer);
573         dev_dbg(&link->dev,
574               "ray_cs dl_startup_params started timer for verify_dl_startup\n");
575         return 0;
576 } /* dl_startup_params */
577 
578 /*===========================================================================*/
579 static void init_startup_params(ray_dev_t *local)
580 {
581         int i;
582 
583         if (country > JAPAN_TEST)
584                 country = USA;
585         else if (country < USA)
586                 country = USA;
587         /* structure for hop time and beacon period is defined here using
588          * New 802.11D6.1 format.  Card firmware is still using old format
589          * until version 6.
590          *    Before                    After
591          *    a_hop_time ms byte        a_hop_time ms byte
592          *    a_hop_time 2s byte        a_hop_time ls byte
593          *    a_hop_time ls byte        a_beacon_period ms byte
594          *    a_beacon_period           a_beacon_period ls byte
595          *
596          *    a_hop_time = uS           a_hop_time = KuS
597          *    a_beacon_period = hops    a_beacon_period = KuS
598          *//* 64ms = 010000 */
599         if (local->fw_ver == 0x55) {
600                 memcpy((UCHAR *) &local->sparm.b4, b4_default_startup_parms,
601                        sizeof(struct b4_startup_params));
602                 /* Translate sane kus input values to old build 4/5 format */
603                 /* i = hop time in uS truncated to 3 bytes */
604                 i = (hop_dwell * 1024) & 0xffffff;
605                 local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
606                 local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
607                 local->sparm.b4.a_beacon_period[0] = 0;
608                 local->sparm.b4.a_beacon_period[1] =
609                     ((beacon_period / hop_dwell) - 1) & 0xff;
610                 local->sparm.b4.a_curr_country_code = country;
611                 local->sparm.b4.a_hop_pattern_length =
612                     hop_pattern_length[(int)country] - 1;
613                 if (bc) {
614                         local->sparm.b4.a_ack_timeout = 0x50;
615                         local->sparm.b4.a_sifs = 0x3f;
616                 }
617         } else { /* Version 5 uses real kus values */
618                 memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms,
619                        sizeof(struct b5_startup_params));
620 
621                 local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
622                 local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
623                 local->sparm.b5.a_beacon_period[0] =
624                     (beacon_period >> 8) & 0xff;
625                 local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
626                 if (psm)
627                         local->sparm.b5.a_power_mgt_state = 1;
628                 local->sparm.b5.a_curr_country_code = country;
629                 local->sparm.b5.a_hop_pattern_length =
630                     hop_pattern_length[(int)country];
631         }
632 
633         local->sparm.b4.a_network_type = net_type & 0x01;
634         local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
635 
636         if (essid != NULL)
637                 strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
638 } /* init_startup_params */
639 
640 /*===========================================================================*/
641 static void verify_dl_startup(u_long data)
642 {
643         ray_dev_t *local = (ray_dev_t *) data;
644         struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
645         UCHAR status;
646         struct pcmcia_device *link = local->finder;
647 
648         if (!(pcmcia_dev_present(link))) {
649                 dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n");
650                 return;
651         }
652 #if 0
653         {
654                 int i;
655                 printk(KERN_DEBUG
656                        "verify_dl_startup parameters sent via ccs %d:\n",
657                        local->dl_param_ccs);
658                 for (i = 0; i < sizeof(struct b5_startup_params); i++) {
659                         printk(" %2x",
660                                (unsigned int)readb(local->sram +
661                                                    HOST_TO_ECF_BASE + i));
662                 }
663                 printk("\n");
664         }
665 #endif
666 
667         status = readb(&pccs->buffer_status);
668         if (status != CCS_BUFFER_FREE) {
669                 printk(KERN_INFO
670                        "Download startup params failed.  Status = %d\n",
671                        status);
672                 local->card_status = CARD_DL_PARAM_ERROR;
673                 return;
674         }
675         if (local->sparm.b4.a_network_type == ADHOC)
676                 start_net((u_long) local);
677         else
678                 join_net((u_long) local);
679 } /* end verify_dl_startup */
680 
681 /*===========================================================================*/
682 /* Command card to start a network */
683 static void start_net(u_long data)
684 {
685         ray_dev_t *local = (ray_dev_t *) data;
686         struct ccs __iomem *pccs;
687         int ccsindex;
688         struct pcmcia_device *link = local->finder;
689         if (!(pcmcia_dev_present(link))) {
690                 dev_dbg(&link->dev, "ray_cs start_net - device not present\n");
691                 return;
692         }
693         /* Fill in the CCS fields for the ECF */
694         if ((ccsindex = get_free_ccs(local)) < 0)
695                 return;
696         pccs = ccs_base(local) + ccsindex;
697         writeb(CCS_START_NETWORK, &pccs->cmd);
698         writeb(0, &pccs->var.start_network.update_param);
699         /* Interrupt the firmware to process the command */
700         if (interrupt_ecf(local, ccsindex)) {
701                 dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n");
702                 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
703                 return;
704         }
705         local->card_status = CARD_DOING_ACQ;
706 } /* end start_net */
707 
708 /*===========================================================================*/
709 /* Command card to join a network */
710 static void join_net(u_long data)
711 {
712         ray_dev_t *local = (ray_dev_t *) data;
713 
714         struct ccs __iomem *pccs;
715         int ccsindex;
716         struct pcmcia_device *link = local->finder;
717 
718         if (!(pcmcia_dev_present(link))) {
719                 dev_dbg(&link->dev, "ray_cs join_net - device not present\n");
720                 return;
721         }
722         /* Fill in the CCS fields for the ECF */
723         if ((ccsindex = get_free_ccs(local)) < 0)
724                 return;
725         pccs = ccs_base(local) + ccsindex;
726         writeb(CCS_JOIN_NETWORK, &pccs->cmd);
727         writeb(0, &pccs->var.join_network.update_param);
728         writeb(0, &pccs->var.join_network.net_initiated);
729         /* Interrupt the firmware to process the command */
730         if (interrupt_ecf(local, ccsindex)) {
731                 dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n");
732                 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
733                 return;
734         }
735         local->card_status = CARD_DOING_ACQ;
736 }
737 
738 
739 static void ray_release(struct pcmcia_device *link)
740 {
741         struct net_device *dev = link->priv;
742         ray_dev_t *local = netdev_priv(dev);
743 
744         dev_dbg(&link->dev, "ray_release\n");
745 
746         del_timer(&local->timer);
747 
748         iounmap(local->sram);
749         iounmap(local->rmem);
750         iounmap(local->amem);
751         pcmcia_disable_device(link);
752 
753         dev_dbg(&link->dev, "ray_release ending\n");
754 }
755 
756 static int ray_suspend(struct pcmcia_device *link)
757 {
758         struct net_device *dev = link->priv;
759 
760         if (link->open)
761                 netif_device_detach(dev);
762 
763         return 0;
764 }
765 
766 static int ray_resume(struct pcmcia_device *link)
767 {
768         struct net_device *dev = link->priv;
769 
770         if (link->open) {
771                 ray_reset(dev);
772                 netif_device_attach(dev);
773         }
774 
775         return 0;
776 }
777 
778 /*===========================================================================*/
779 static int ray_dev_init(struct net_device *dev)
780 {
781 #ifdef RAY_IMMEDIATE_INIT
782         int i;
783 #endif /* RAY_IMMEDIATE_INIT */
784         ray_dev_t *local = netdev_priv(dev);
785         struct pcmcia_device *link = local->finder;
786 
787         dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev);
788         if (!(pcmcia_dev_present(link))) {
789                 dev_dbg(&link->dev, "ray_dev_init - device not present\n");
790                 return -1;
791         }
792 #ifdef RAY_IMMEDIATE_INIT
793         /* Download startup parameters */
794         if ((i = dl_startup_params(dev)) < 0) {
795                 printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
796                        "returns 0x%x\n", i);
797                 return -1;
798         }
799 #else /* RAY_IMMEDIATE_INIT */
800         /* Postpone the card init so that we can still configure the card,
801          * for example using the Wireless Extensions. The init will happen
802          * in ray_open() - Jean II */
803         dev_dbg(&link->dev,
804               "ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
805               local->card_status);
806 #endif /* RAY_IMMEDIATE_INIT */
807 
808         /* copy mac and broadcast addresses to linux device */
809         memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
810         eth_broadcast_addr(dev->broadcast);
811 
812         dev_dbg(&link->dev, "ray_dev_init ending\n");
813         return 0;
814 }
815 
816 /*===========================================================================*/
817 static int ray_dev_config(struct net_device *dev, struct ifmap *map)
818 {
819         ray_dev_t *local = netdev_priv(dev);
820         struct pcmcia_device *link = local->finder;
821         /* Dummy routine to satisfy device structure */
822         dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map);
823         if (!(pcmcia_dev_present(link))) {
824                 dev_dbg(&link->dev, "ray_dev_config - device not present\n");
825                 return -1;
826         }
827 
828         return 0;
829 }
830 
831 /*===========================================================================*/
832 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
833                                             struct net_device *dev)
834 {
835         ray_dev_t *local = netdev_priv(dev);
836         struct pcmcia_device *link = local->finder;
837         short length = skb->len;
838 
839         if (!pcmcia_dev_present(link)) {
840                 dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n");
841                 dev_kfree_skb(skb);
842                 return NETDEV_TX_OK;
843         }
844 
845         dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
846         if (local->authentication_state == NEED_TO_AUTH) {
847                 dev_dbg(&link->dev, "ray_cs Sending authentication request.\n");
848                 if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
849                         local->authentication_state = AUTHENTICATED;
850                         netif_stop_queue(dev);
851                         return NETDEV_TX_BUSY;
852                 }
853         }
854 
855         if (length < ETH_ZLEN) {
856                 if (skb_padto(skb, ETH_ZLEN))
857                         return NETDEV_TX_OK;
858                 length = ETH_ZLEN;
859         }
860         switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) {
861         case XMIT_NO_CCS:
862         case XMIT_NEED_AUTH:
863                 netif_stop_queue(dev);
864                 return NETDEV_TX_BUSY;
865         case XMIT_NO_INTR:
866         case XMIT_MSG_BAD:
867         case XMIT_OK:
868         default:
869                 dev_kfree_skb(skb);
870         }
871 
872         return NETDEV_TX_OK;
873 } /* ray_dev_start_xmit */
874 
875 /*===========================================================================*/
876 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
877                        UCHAR msg_type)
878 {
879         ray_dev_t *local = netdev_priv(dev);
880         struct ccs __iomem *pccs;
881         int ccsindex;
882         int offset;
883         struct tx_msg __iomem *ptx;     /* Address of xmit buffer in PC space */
884         short int addr;         /* Address of xmit buffer in card space */
885 
886         pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev);
887         if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) {
888                 printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",
889                        len);
890                 return XMIT_MSG_BAD;
891         }
892         switch (ccsindex = get_free_tx_ccs(local)) {
893         case ECCSBUSY:
894                 pr_debug("ray_hw_xmit tx_ccs table busy\n");
895         case ECCSFULL:
896                 pr_debug("ray_hw_xmit No free tx ccs\n");
897         case ECARDGONE:
898                 netif_stop_queue(dev);
899                 return XMIT_NO_CCS;
900         default:
901                 break;
902         }
903         addr = TX_BUF_BASE + (ccsindex << 11);
904 
905         if (msg_type == DATA_TYPE) {
906                 local->stats.tx_bytes += len;
907                 local->stats.tx_packets++;
908         }
909 
910         ptx = local->sram + addr;
911 
912         ray_build_header(local, ptx, msg_type, data);
913         if (translate) {
914                 offset = translate_frame(local, ptx, data, len);
915         } else { /* Encapsulate frame */
916                 /* TBD TIB length will move address of ptx->var */
917                 memcpy_toio(&ptx->var, data, len);
918                 offset = 0;
919         }
920 
921         /* fill in the CCS */
922         pccs = ccs_base(local) + ccsindex;
923         len += TX_HEADER_LENGTH + offset;
924         writeb(CCS_TX_REQUEST, &pccs->cmd);
925         writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
926         writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
927         writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
928         writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
929 /* TBD still need psm_cam? */
930         writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
931         writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
932         writeb(0, &pccs->var.tx_request.antenna);
933         pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n",
934               local->net_default_tx_rate);
935 
936         /* Interrupt the firmware to process the command */
937         if (interrupt_ecf(local, ccsindex)) {
938                 pr_debug("ray_hw_xmit failed - ECF not ready for intr\n");
939 /* TBD very inefficient to copy packet to buffer, and then not
940    send it, but the alternative is to queue the messages and that
941    won't be done for a while.  Maybe set tbusy until a CCS is free?
942 */
943                 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
944                 return XMIT_NO_INTR;
945         }
946         return XMIT_OK;
947 } /* end ray_hw_xmit */
948 
949 /*===========================================================================*/
950 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
951                            unsigned char *data, int len)
952 {
953         __be16 proto = ((struct ethhdr *)data)->h_proto;
954         if (ntohs(proto) >= ETH_P_802_3_MIN) { /* DIX II ethernet frame */
955                 pr_debug("ray_cs translate_frame DIX II\n");
956                 /* Copy LLC header to card buffer */
957                 memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
958                 memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc),
959                             (UCHAR *) &proto, 2);
960                 if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
961                         /* This is the selective translation table, only 2 entries */
962                         writeb(0xf8,
963                                &((struct snaphdr_t __iomem *)ptx->var)->org[3]);
964                 }
965                 /* Copy body of ethernet packet without ethernet header */
966                 memcpy_toio((void __iomem *)&ptx->var +
967                             sizeof(struct snaphdr_t), data + ETH_HLEN,
968                             len - ETH_HLEN);
969                 return (int)sizeof(struct snaphdr_t) - ETH_HLEN;
970         } else { /* already  802 type, and proto is length */
971                 pr_debug("ray_cs translate_frame 802\n");
972                 if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
973                         pr_debug("ray_cs translate_frame evil IPX\n");
974                         memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
975                         return 0 - ETH_HLEN;
976                 }
977                 memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
978                 return 0 - ETH_HLEN;
979         }
980         /* TBD do other frame types */
981 } /* end translate_frame */
982 
983 /*===========================================================================*/
984 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
985                              UCHAR msg_type, unsigned char *data)
986 {
987         writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
988 /*** IEEE 802.11 Address field assignments *************
989                 TODS    FROMDS  addr_1          addr_2          addr_3  addr_4
990 Adhoc           0       0       dest            src (terminal)  BSSID   N/A
991 AP to Terminal  0       1       dest            AP(BSSID)       source  N/A
992 Terminal to AP  1       0       AP(BSSID)       src (terminal)  dest    N/A
993 AP to AP        1       1       dest AP         src AP          dest    source
994 *******************************************************/
995         if (local->net_type == ADHOC) {
996                 writeb(0, &ptx->mac.frame_ctl_2);
997                 memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest,
998                             2 * ADDRLEN);
999                 memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
1000         } else { /* infrastructure */
1001 
1002                 if (local->sparm.b4.a_acting_as_ap_status) {
1003                         writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
1004                         memcpy_toio(ptx->mac.addr_1,
1005                                     ((struct ethhdr *)data)->h_dest, ADDRLEN);
1006                         memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
1007                         memcpy_toio(ptx->mac.addr_3,
1008                                     ((struct ethhdr *)data)->h_source, ADDRLEN);
1009                 } else { /* Terminal */
1010 
1011                         writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
1012                         memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1013                         memcpy_toio(ptx->mac.addr_2,
1014                                     ((struct ethhdr *)data)->h_source, ADDRLEN);
1015                         memcpy_toio(ptx->mac.addr_3,
1016                                     ((struct ethhdr *)data)->h_dest, ADDRLEN);
1017                 }
1018         }
1019 } /* end encapsulate_frame */
1020 
1021 /*====================================================================*/
1022 
1023 /*------------------------------------------------------------------*/
1024 /*
1025  * Wireless Handler : get protocol name
1026  */
1027 static int ray_get_name(struct net_device *dev, struct iw_request_info *info,
1028                         union iwreq_data *wrqu, char *extra)
1029 {
1030         strcpy(wrqu->name, "IEEE 802.11-FH");
1031         return 0;
1032 }
1033 
1034 /*------------------------------------------------------------------*/
1035 /*
1036  * Wireless Handler : set frequency
1037  */
1038 static int ray_set_freq(struct net_device *dev, struct iw_request_info *info,
1039                         union iwreq_data *wrqu, char *extra)
1040 {
1041         ray_dev_t *local = netdev_priv(dev);
1042         int err = -EINPROGRESS; /* Call commit handler */
1043 
1044         /* Reject if card is already initialised */
1045         if (local->card_status != CARD_AWAITING_PARAM)
1046                 return -EBUSY;
1047 
1048         /* Setting by channel number */
1049         if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0))
1050                 err = -EOPNOTSUPP;
1051         else
1052                 local->sparm.b5.a_hop_pattern = wrqu->freq.m;
1053 
1054         return err;
1055 }
1056 
1057 /*------------------------------------------------------------------*/
1058 /*
1059  * Wireless Handler : get frequency
1060  */
1061 static int ray_get_freq(struct net_device *dev, struct iw_request_info *info,
1062                         union iwreq_data *wrqu, char *extra)
1063 {
1064         ray_dev_t *local = netdev_priv(dev);
1065 
1066         wrqu->freq.m = local->sparm.b5.a_hop_pattern;
1067         wrqu->freq.e = 0;
1068         return 0;
1069 }
1070 
1071 /*------------------------------------------------------------------*/
1072 /*
1073  * Wireless Handler : set ESSID
1074  */
1075 static int ray_set_essid(struct net_device *dev, struct iw_request_info *info,
1076                          union iwreq_data *wrqu, char *extra)
1077 {
1078         ray_dev_t *local = netdev_priv(dev);
1079 
1080         /* Reject if card is already initialised */
1081         if (local->card_status != CARD_AWAITING_PARAM)
1082                 return -EBUSY;
1083 
1084         /* Check if we asked for `any' */
1085         if (wrqu->essid.flags == 0)
1086                 /* Corey : can you do that ? */
1087                 return -EOPNOTSUPP;
1088 
1089         /* Check the size of the string */
1090         if (wrqu->essid.length > IW_ESSID_MAX_SIZE)
1091                 return -E2BIG;
1092 
1093         /* Set the ESSID in the card */
1094         memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1095         memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length);
1096 
1097         return -EINPROGRESS;    /* Call commit handler */
1098 }
1099 
1100 /*------------------------------------------------------------------*/
1101 /*
1102  * Wireless Handler : get ESSID
1103  */
1104 static int ray_get_essid(struct net_device *dev, struct iw_request_info *info,
1105                          union iwreq_data *wrqu, char *extra)
1106 {
1107         ray_dev_t *local = netdev_priv(dev);
1108         UCHAR tmp[IW_ESSID_MAX_SIZE + 1];
1109 
1110         /* Get the essid that was set */
1111         memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1112         memcpy(tmp, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1113         tmp[IW_ESSID_MAX_SIZE] = '\0';
1114 
1115         /* Push it out ! */
1116         wrqu->essid.length = strlen(tmp);
1117         wrqu->essid.flags = 1;  /* active */
1118 
1119         return 0;
1120 }
1121 
1122 /*------------------------------------------------------------------*/
1123 /*
1124  * Wireless Handler : get AP address
1125  */
1126 static int ray_get_wap(struct net_device *dev, struct iw_request_info *info,
1127                        union iwreq_data *wrqu, char *extra)
1128 {
1129         ray_dev_t *local = netdev_priv(dev);
1130 
1131         memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN);
1132         wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1133 
1134         return 0;
1135 }
1136 
1137 /*------------------------------------------------------------------*/
1138 /*
1139  * Wireless Handler : set Bit-Rate
1140  */
1141 static int ray_set_rate(struct net_device *dev, struct iw_request_info *info,
1142                         union iwreq_data *wrqu, char *extra)
1143 {
1144         ray_dev_t *local = netdev_priv(dev);
1145 
1146         /* Reject if card is already initialised */
1147         if (local->card_status != CARD_AWAITING_PARAM)
1148                 return -EBUSY;
1149 
1150         /* Check if rate is in range */
1151         if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000))
1152                 return -EINVAL;
1153 
1154         /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1155         if ((local->fw_ver == 0x55) &&  /* Please check */
1156             (wrqu->bitrate.value == 2000000))
1157                 local->net_default_tx_rate = 3;
1158         else
1159                 local->net_default_tx_rate = wrqu->bitrate.value / 500000;
1160 
1161         return 0;
1162 }
1163 
1164 /*------------------------------------------------------------------*/
1165 /*
1166  * Wireless Handler : get Bit-Rate
1167  */
1168 static int ray_get_rate(struct net_device *dev, struct iw_request_info *info,
1169                         union iwreq_data *wrqu, char *extra)
1170 {
1171         ray_dev_t *local = netdev_priv(dev);
1172 
1173         if (local->net_default_tx_rate == 3)
1174                 wrqu->bitrate.value = 2000000;  /* Hum... */
1175         else
1176                 wrqu->bitrate.value = local->net_default_tx_rate * 500000;
1177         wrqu->bitrate.fixed = 0;        /* We are in auto mode */
1178 
1179         return 0;
1180 }
1181 
1182 /*------------------------------------------------------------------*/
1183 /*
1184  * Wireless Handler : set RTS threshold
1185  */
1186 static int ray_set_rts(struct net_device *dev, struct iw_request_info *info,
1187                        union iwreq_data *wrqu, char *extra)
1188 {
1189         ray_dev_t *local = netdev_priv(dev);
1190         int rthr = wrqu->rts.value;
1191 
1192         /* Reject if card is already initialised */
1193         if (local->card_status != CARD_AWAITING_PARAM)
1194                 return -EBUSY;
1195 
1196         /* if(wrq->u.rts.fixed == 0) we should complain */
1197         if (wrqu->rts.disabled)
1198                 rthr = 32767;
1199         else {
1200                 if ((rthr < 0) || (rthr > 2347))   /* What's the max packet size ??? */
1201                         return -EINVAL;
1202         }
1203         local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1204         local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1205 
1206         return -EINPROGRESS;    /* Call commit handler */
1207 }
1208 
1209 /*------------------------------------------------------------------*/
1210 /*
1211  * Wireless Handler : get RTS threshold
1212  */
1213 static int ray_get_rts(struct net_device *dev, struct iw_request_info *info,
1214                        union iwreq_data *wrqu, char *extra)
1215 {
1216         ray_dev_t *local = netdev_priv(dev);
1217 
1218         wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8)
1219             + local->sparm.b5.a_rts_threshold[1];
1220         wrqu->rts.disabled = (wrqu->rts.value == 32767);
1221         wrqu->rts.fixed = 1;
1222 
1223         return 0;
1224 }
1225 
1226 /*------------------------------------------------------------------*/
1227 /*
1228  * Wireless Handler : set Fragmentation threshold
1229  */
1230 static int ray_set_frag(struct net_device *dev, struct iw_request_info *info,
1231                         union iwreq_data *wrqu, char *extra)
1232 {
1233         ray_dev_t *local = netdev_priv(dev);
1234         int fthr = wrqu->frag.value;
1235 
1236         /* Reject if card is already initialised */
1237         if (local->card_status != CARD_AWAITING_PARAM)
1238                 return -EBUSY;
1239 
1240         /* if(wrq->u.frag.fixed == 0) should complain */
1241         if (wrqu->frag.disabled)
1242                 fthr = 32767;
1243         else {
1244                 if ((fthr < 256) || (fthr > 2347))      /* To check out ! */
1245                         return -EINVAL;
1246         }
1247         local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1248         local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1249 
1250         return -EINPROGRESS;    /* Call commit handler */
1251 }
1252 
1253 /*------------------------------------------------------------------*/
1254 /*
1255  * Wireless Handler : get Fragmentation threshold
1256  */
1257 static int ray_get_frag(struct net_device *dev, struct iw_request_info *info,
1258                         union iwreq_data *wrqu, char *extra)
1259 {
1260         ray_dev_t *local = netdev_priv(dev);
1261 
1262         wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8)
1263             + local->sparm.b5.a_frag_threshold[1];
1264         wrqu->frag.disabled = (wrqu->frag.value == 32767);
1265         wrqu->frag.fixed = 1;
1266 
1267         return 0;
1268 }
1269 
1270 /*------------------------------------------------------------------*/
1271 /*
1272  * Wireless Handler : set Mode of Operation
1273  */
1274 static int ray_set_mode(struct net_device *dev, struct iw_request_info *info,
1275                         union iwreq_data *wrqu, char *extra)
1276 {
1277         ray_dev_t *local = netdev_priv(dev);
1278         int err = -EINPROGRESS; /* Call commit handler */
1279         char card_mode = 1;
1280 
1281         /* Reject if card is already initialised */
1282         if (local->card_status != CARD_AWAITING_PARAM)
1283                 return -EBUSY;
1284 
1285         switch (wrqu->mode) {
1286         case IW_MODE_ADHOC:
1287                 card_mode = 0;
1288                 /* Fall through */
1289         case IW_MODE_INFRA:
1290                 local->sparm.b5.a_network_type = card_mode;
1291                 break;
1292         default:
1293                 err = -EINVAL;
1294         }
1295 
1296         return err;
1297 }
1298 
1299 /*------------------------------------------------------------------*/
1300 /*
1301  * Wireless Handler : get Mode of Operation
1302  */
1303 static int ray_get_mode(struct net_device *dev, struct iw_request_info *info,
1304                         union iwreq_data *wrqu, char *extra)
1305 {
1306         ray_dev_t *local = netdev_priv(dev);
1307 
1308         if (local->sparm.b5.a_network_type)
1309                 wrqu->mode = IW_MODE_INFRA;
1310         else
1311                 wrqu->mode = IW_MODE_ADHOC;
1312 
1313         return 0;
1314 }
1315 
1316 /*------------------------------------------------------------------*/
1317 /*
1318  * Wireless Handler : get range info
1319  */
1320 static int ray_get_range(struct net_device *dev, struct iw_request_info *info,
1321                          union iwreq_data *wrqu, char *extra)
1322 {
1323         struct iw_range *range = (struct iw_range *)extra;
1324 
1325         memset(range, 0, sizeof(struct iw_range));
1326 
1327         /* Set the length (very important for backward compatibility) */
1328         wrqu->data.length = sizeof(struct iw_range);
1329 
1330         /* Set the Wireless Extension versions */
1331         range->we_version_compiled = WIRELESS_EXT;
1332         range->we_version_source = 9;
1333 
1334         /* Set information in the range struct */
1335         range->throughput = 1.1 * 1000 * 1000;  /* Put the right number here */
1336         range->num_channels = hop_pattern_length[(int)country];
1337         range->num_frequency = 0;
1338         range->max_qual.qual = 0;
1339         range->max_qual.level = 255;    /* What's the correct value ? */
1340         range->max_qual.noise = 255;    /* Idem */
1341         range->num_bitrates = 2;
1342         range->bitrate[0] = 1000000;    /* 1 Mb/s */
1343         range->bitrate[1] = 2000000;    /* 2 Mb/s */
1344         return 0;
1345 }
1346 
1347 /*------------------------------------------------------------------*/
1348 /*
1349  * Wireless Private Handler : set framing mode
1350  */
1351 static int ray_set_framing(struct net_device *dev, struct iw_request_info *info,
1352                            union iwreq_data *wrqu, char *extra)
1353 {
1354         translate = !!*(extra); /* Set framing mode */
1355 
1356         return 0;
1357 }
1358 
1359 /*------------------------------------------------------------------*/
1360 /*
1361  * Wireless Private Handler : get framing mode
1362  */
1363 static int ray_get_framing(struct net_device *dev, struct iw_request_info *info,
1364                            union iwreq_data *wrqu, char *extra)
1365 {
1366         *(extra) = translate;
1367 
1368         return 0;
1369 }
1370 
1371 /*------------------------------------------------------------------*/
1372 /*
1373  * Wireless Private Handler : get country
1374  */
1375 static int ray_get_country(struct net_device *dev, struct iw_request_info *info,
1376                            union iwreq_data *wrqu, char *extra)
1377 {
1378         *(extra) = country;
1379 
1380         return 0;
1381 }
1382 
1383 /*------------------------------------------------------------------*/
1384 /*
1385  * Commit handler : called after a bunch of SET operations
1386  */
1387 static int ray_commit(struct net_device *dev, struct iw_request_info *info,
1388                       union iwreq_data *wrqu, char *extra)
1389 {
1390         return 0;
1391 }
1392 
1393 /*------------------------------------------------------------------*/
1394 /*
1395  * Stats handler : return Wireless Stats
1396  */
1397 static iw_stats *ray_get_wireless_stats(struct net_device *dev)
1398 {
1399         ray_dev_t *local = netdev_priv(dev);
1400         struct pcmcia_device *link = local->finder;
1401         struct status __iomem *p = local->sram + STATUS_BASE;
1402 
1403         local->wstats.status = local->card_status;
1404 #ifdef WIRELESS_SPY
1405         if ((local->spy_data.spy_number > 0)
1406             && (local->sparm.b5.a_network_type == 0)) {
1407                 /* Get it from the first node in spy list */
1408                 local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1409                 local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1410                 local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1411                 local->wstats.qual.updated =
1412                     local->spy_data.spy_stat[0].updated;
1413         }
1414 #endif /* WIRELESS_SPY */
1415 
1416         if (pcmcia_dev_present(link)) {
1417                 local->wstats.qual.noise = readb(&p->rxnoise);
1418                 local->wstats.qual.updated |= 4;
1419         }
1420 
1421         return &local->wstats;
1422 } /* end ray_get_wireless_stats */
1423 
1424 /*------------------------------------------------------------------*/
1425 /*
1426  * Structures to export the Wireless Handlers
1427  */
1428 
1429 static const iw_handler ray_handler[] = {
1430         IW_HANDLER(SIOCSIWCOMMIT, ray_commit),
1431         IW_HANDLER(SIOCGIWNAME, ray_get_name),
1432         IW_HANDLER(SIOCSIWFREQ, ray_set_freq),
1433         IW_HANDLER(SIOCGIWFREQ, ray_get_freq),
1434         IW_HANDLER(SIOCSIWMODE, ray_set_mode),
1435         IW_HANDLER(SIOCGIWMODE, ray_get_mode),
1436         IW_HANDLER(SIOCGIWRANGE, ray_get_range),
1437 #ifdef WIRELESS_SPY
1438         IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1439         IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1440         IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1441         IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1442 #endif /* WIRELESS_SPY */
1443         IW_HANDLER(SIOCGIWAP, ray_get_wap),
1444         IW_HANDLER(SIOCSIWESSID, ray_set_essid),
1445         IW_HANDLER(SIOCGIWESSID, ray_get_essid),
1446         IW_HANDLER(SIOCSIWRATE, ray_set_rate),
1447         IW_HANDLER(SIOCGIWRATE, ray_get_rate),
1448         IW_HANDLER(SIOCSIWRTS, ray_set_rts),
1449         IW_HANDLER(SIOCGIWRTS, ray_get_rts),
1450         IW_HANDLER(SIOCSIWFRAG, ray_set_frag),
1451         IW_HANDLER(SIOCGIWFRAG, ray_get_frag),
1452 };
1453 
1454 #define SIOCSIPFRAMING  SIOCIWFIRSTPRIV /* Set framing mode */
1455 #define SIOCGIPFRAMING  SIOCIWFIRSTPRIV + 1     /* Get framing mode */
1456 #define SIOCGIPCOUNTRY  SIOCIWFIRSTPRIV + 3     /* Get country code */
1457 
1458 static const iw_handler ray_private_handler[] = {
1459         [0] = ray_set_framing,
1460         [1] = ray_get_framing,
1461         [3] = ray_get_country,
1462 };
1463 
1464 static const struct iw_priv_args ray_private_args[] = {
1465 /* cmd,         set_args,       get_args,       name */
1466         {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0,
1467          "set_framing"},
1468         {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1469          "get_framing"},
1470         {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1471          "get_country"},
1472 };
1473 
1474 static const struct iw_handler_def ray_handler_def = {
1475         .num_standard = ARRAY_SIZE(ray_handler),
1476         .num_private = ARRAY_SIZE(ray_private_handler),
1477         .num_private_args = ARRAY_SIZE(ray_private_args),
1478         .standard = ray_handler,
1479         .private = ray_private_handler,
1480         .private_args = ray_private_args,
1481         .get_wireless_stats = ray_get_wireless_stats,
1482 };
1483 
1484 /*===========================================================================*/
1485 static int ray_open(struct net_device *dev)
1486 {
1487         ray_dev_t *local = netdev_priv(dev);
1488         struct pcmcia_device *link;
1489         link = local->finder;
1490 
1491         dev_dbg(&link->dev, "ray_open('%s')\n", dev->name);
1492 
1493         if (link->open == 0)
1494                 local->num_multi = 0;
1495         link->open++;
1496 
1497         /* If the card is not started, time to start it ! - Jean II */
1498         if (local->card_status == CARD_AWAITING_PARAM) {
1499                 int i;
1500 
1501                 dev_dbg(&link->dev, "ray_open: doing init now !\n");
1502 
1503                 /* Download startup parameters */
1504                 if ((i = dl_startup_params(dev)) < 0) {
1505                         printk(KERN_INFO
1506                                "ray_dev_init dl_startup_params failed - "
1507                                "returns 0x%x\n", i);
1508                         return -1;
1509                 }
1510         }
1511 
1512         if (sniffer)
1513                 netif_stop_queue(dev);
1514         else
1515                 netif_start_queue(dev);
1516 
1517         dev_dbg(&link->dev, "ray_open ending\n");
1518         return 0;
1519 } /* end ray_open */
1520 
1521 /*===========================================================================*/
1522 static int ray_dev_close(struct net_device *dev)
1523 {
1524         ray_dev_t *local = netdev_priv(dev);
1525         struct pcmcia_device *link;
1526         link = local->finder;
1527 
1528         dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name);
1529 
1530         link->open--;
1531         netif_stop_queue(dev);
1532 
1533         /* In here, we should stop the hardware (stop card from beeing active)
1534          * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1535          * card is closed we can chage its configuration.
1536          * Probably also need a COR reset to get sane state - Jean II */
1537 
1538         return 0;
1539 } /* end ray_dev_close */
1540 
1541 /*===========================================================================*/
1542 static void ray_reset(struct net_device *dev)
1543 {
1544         pr_debug("ray_reset entered\n");
1545 }
1546 
1547 /*===========================================================================*/
1548 /* Cause a firmware interrupt if it is ready for one                         */
1549 /* Return nonzero if not ready                                               */
1550 static int interrupt_ecf(ray_dev_t *local, int ccs)
1551 {
1552         int i = 50;
1553         struct pcmcia_device *link = local->finder;
1554 
1555         if (!(pcmcia_dev_present(link))) {
1556                 dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n");
1557                 return -1;
1558         }
1559         dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs);
1560 
1561         while (i &&
1562                (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) &
1563                 ECF_INTR_SET))
1564                 i--;
1565         if (i == 0) {
1566                 dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n");
1567                 return -1;
1568         }
1569         /* Fill the mailbox, then kick the card */
1570         writeb(ccs, local->sram + SCB_BASE);
1571         writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1572         return 0;
1573 } /* interrupt_ecf */
1574 
1575 /*===========================================================================*/
1576 /* Get next free transmit CCS                                                */
1577 /* Return - index of current tx ccs                                          */
1578 static int get_free_tx_ccs(ray_dev_t *local)
1579 {
1580         int i;
1581         struct ccs __iomem *pccs = ccs_base(local);
1582         struct pcmcia_device *link = local->finder;
1583 
1584         if (!(pcmcia_dev_present(link))) {
1585                 dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n");
1586                 return ECARDGONE;
1587         }
1588 
1589         if (test_and_set_bit(0, &local->tx_ccs_lock)) {
1590                 dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n");
1591                 return ECCSBUSY;
1592         }
1593 
1594         for (i = 0; i < NUMBER_OF_TX_CCS; i++) {
1595                 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1596                         writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1597                         writeb(CCS_END_LIST, &(pccs + i)->link);
1598                         local->tx_ccs_lock = 0;
1599                         return i;
1600                 }
1601         }
1602         local->tx_ccs_lock = 0;
1603         dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n");
1604         return ECCSFULL;
1605 } /* get_free_tx_ccs */
1606 
1607 /*===========================================================================*/
1608 /* Get next free CCS                                                         */
1609 /* Return - index of current ccs                                             */
1610 static int get_free_ccs(ray_dev_t *local)
1611 {
1612         int i;
1613         struct ccs __iomem *pccs = ccs_base(local);
1614         struct pcmcia_device *link = local->finder;
1615 
1616         if (!(pcmcia_dev_present(link))) {
1617                 dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n");
1618                 return ECARDGONE;
1619         }
1620         if (test_and_set_bit(0, &local->ccs_lock)) {
1621                 dev_dbg(&link->dev, "ray_cs ccs_lock busy\n");
1622                 return ECCSBUSY;
1623         }
1624 
1625         for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1626                 if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1627                         writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1628                         writeb(CCS_END_LIST, &(pccs + i)->link);
1629                         local->ccs_lock = 0;
1630                         return i;
1631                 }
1632         }
1633         local->ccs_lock = 0;
1634         dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n");
1635         return ECCSFULL;
1636 } /* get_free_ccs */
1637 
1638 /*===========================================================================*/
1639 static void authenticate_timeout(u_long data)
1640 {
1641         ray_dev_t *local = (ray_dev_t *) data;
1642         del_timer(&local->timer);
1643         printk(KERN_INFO "ray_cs Authentication with access point failed"
1644                " - timeout\n");
1645         join_net((u_long) local);
1646 }
1647 
1648 /*===========================================================================*/
1649 static int parse_addr(char *in_str, UCHAR *out)
1650 {
1651         int len;
1652         int i, j, k;
1653         int status;
1654 
1655         if (in_str == NULL)
1656                 return 0;
1657         if ((len = strlen(in_str)) < 2)
1658                 return 0;
1659         memset(out, 0, ADDRLEN);
1660 
1661         status = 1;
1662         j = len - 1;
1663         if (j > 12)
1664                 j = 12;
1665         i = 5;
1666 
1667         while (j > 0) {
1668                 if ((k = hex_to_bin(in_str[j--])) != -1)
1669                         out[i] = k;
1670                 else
1671                         return 0;
1672 
1673                 if (j == 0)
1674                         break;
1675                 if ((k = hex_to_bin(in_str[j--])) != -1)
1676                         out[i] += k << 4;
1677                 else
1678                         return 0;
1679                 if (!i--)
1680                         break;
1681         }
1682         return status;
1683 }
1684 
1685 /*===========================================================================*/
1686 static struct net_device_stats *ray_get_stats(struct net_device *dev)
1687 {
1688         ray_dev_t *local = netdev_priv(dev);
1689         struct pcmcia_device *link = local->finder;
1690         struct status __iomem *p = local->sram + STATUS_BASE;
1691         if (!(pcmcia_dev_present(link))) {
1692                 dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n");
1693                 return &local->stats;
1694         }
1695         if (readb(&p->mrx_overflow_for_host)) {
1696                 local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1697                 writeb(0, &p->mrx_overflow);
1698                 writeb(0, &p->mrx_overflow_for_host);
1699         }
1700         if (readb(&p->mrx_checksum_error_for_host)) {
1701                 local->stats.rx_crc_errors +=
1702                     swab16(readw(&p->mrx_checksum_error));
1703                 writeb(0, &p->mrx_checksum_error);
1704                 writeb(0, &p->mrx_checksum_error_for_host);
1705         }
1706         if (readb(&p->rx_hec_error_for_host)) {
1707                 local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1708                 writeb(0, &p->rx_hec_error);
1709                 writeb(0, &p->rx_hec_error_for_host);
1710         }
1711         return &local->stats;
1712 }
1713 
1714 /*===========================================================================*/
1715 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value,
1716                             int len)
1717 {
1718         ray_dev_t *local = netdev_priv(dev);
1719         struct pcmcia_device *link = local->finder;
1720         int ccsindex;
1721         int i;
1722         struct ccs __iomem *pccs;
1723 
1724         if (!(pcmcia_dev_present(link))) {
1725                 dev_dbg(&link->dev, "ray_update_parm - device not present\n");
1726                 return;
1727         }
1728 
1729         if ((ccsindex = get_free_ccs(local)) < 0) {
1730                 dev_dbg(&link->dev, "ray_update_parm - No free ccs\n");
1731                 return;
1732         }
1733         pccs = ccs_base(local) + ccsindex;
1734         writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1735         writeb(objid, &pccs->var.update_param.object_id);
1736         writeb(1, &pccs->var.update_param.number_objects);
1737         writeb(0, &pccs->var.update_param.failure_cause);
1738         for (i = 0; i < len; i++) {
1739                 writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1740         }
1741         /* Interrupt the firmware to process the command */
1742         if (interrupt_ecf(local, ccsindex)) {
1743                 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
1744                 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1745         }
1746 }
1747 
1748 /*===========================================================================*/
1749 static void ray_update_multi_list(struct net_device *dev, int all)
1750 {
1751         int ccsindex;
1752         struct ccs __iomem *pccs;
1753         ray_dev_t *local = netdev_priv(dev);
1754         struct pcmcia_device *link = local->finder;
1755         void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1756 
1757         if (!(pcmcia_dev_present(link))) {
1758                 dev_dbg(&link->dev, "ray_update_multi_list - device not present\n");
1759                 return;
1760         } else
1761                 dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev);
1762         if ((ccsindex = get_free_ccs(local)) < 0) {
1763                 dev_dbg(&link->dev, "ray_update_multi - No free ccs\n");
1764                 return;
1765         }
1766         pccs = ccs_base(local) + ccsindex;
1767         writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1768 
1769         if (all) {
1770                 writeb(0xff, &pccs->var);
1771                 local->num_multi = 0xff;
1772         } else {
1773                 struct netdev_hw_addr *ha;
1774                 int i = 0;
1775 
1776                 /* Copy the kernel's list of MC addresses to card */
1777                 netdev_for_each_mc_addr(ha, dev) {
1778                         memcpy_toio(p, ha->addr, ETH_ALEN);
1779                         dev_dbg(&link->dev, "ray_update_multi add addr %pm\n",
1780                                 ha->addr);
1781                         p += ETH_ALEN;
1782                         i++;
1783                 }
1784                 if (i > 256 / ADDRLEN)
1785                         i = 256 / ADDRLEN;
1786                 writeb((UCHAR) i, &pccs->var);
1787                 dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i);
1788                 /* Interrupt the firmware to process the command */
1789                 local->num_multi = i;
1790         }
1791         if (interrupt_ecf(local, ccsindex)) {
1792                 dev_dbg(&link->dev,
1793                       "ray_cs update_multi failed - ECF not ready for intr\n");
1794                 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1795         }
1796 } /* end ray_update_multi_list */
1797 
1798 /*===========================================================================*/
1799 static void set_multicast_list(struct net_device *dev)
1800 {
1801         ray_dev_t *local = netdev_priv(dev);
1802         UCHAR promisc;
1803 
1804         pr_debug("ray_cs set_multicast_list(%p)\n", dev);
1805 
1806         if (dev->flags & IFF_PROMISC) {
1807                 if (local->sparm.b5.a_promiscuous_mode == 0) {
1808                         pr_debug("ray_cs set_multicast_list promisc on\n");
1809                         local->sparm.b5.a_promiscuous_mode = 1;
1810                         promisc = 1;
1811                         ray_update_parm(dev, OBJID_promiscuous_mode,
1812                                         &promisc, sizeof(promisc));
1813                 }
1814         } else {
1815                 if (local->sparm.b5.a_promiscuous_mode == 1) {
1816                         pr_debug("ray_cs set_multicast_list promisc off\n");
1817                         local->sparm.b5.a_promiscuous_mode = 0;
1818                         promisc = 0;
1819                         ray_update_parm(dev, OBJID_promiscuous_mode,
1820                                         &promisc, sizeof(promisc));
1821                 }
1822         }
1823 
1824         if (dev->flags & IFF_ALLMULTI)
1825                 ray_update_multi_list(dev, 1);
1826         else {
1827                 if (local->num_multi != netdev_mc_count(dev))
1828                         ray_update_multi_list(dev, 0);
1829         }
1830 } /* end set_multicast_list */
1831 
1832 /*=============================================================================
1833  * All routines below here are run at interrupt time.
1834 =============================================================================*/
1835 static irqreturn_t ray_interrupt(int irq, void *dev_id)
1836 {
1837         struct net_device *dev = (struct net_device *)dev_id;
1838         struct pcmcia_device *link;
1839         ray_dev_t *local;
1840         struct ccs __iomem *pccs;
1841         struct rcs __iomem *prcs;
1842         UCHAR rcsindex;
1843         UCHAR tmp;
1844         UCHAR cmd;
1845         UCHAR status;
1846         UCHAR memtmp[ESSID_SIZE + 1];
1847 
1848 
1849         if (dev == NULL)        /* Note that we want interrupts with dev->start == 0 */
1850                 return IRQ_NONE;
1851 
1852         pr_debug("ray_cs: interrupt for *dev=%p\n", dev);
1853 
1854         local = netdev_priv(dev);
1855         link = local->finder;
1856         if (!pcmcia_dev_present(link)) {
1857                 pr_debug(
1858                         "ray_cs interrupt from device not present or suspended.\n");
1859                 return IRQ_NONE;
1860         }
1861         rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1862 
1863         if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
1864                 dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex);
1865                 clear_interrupt(local);
1866                 return IRQ_HANDLED;
1867         }
1868         if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */
1869                 pccs = ccs_base(local) + rcsindex;
1870                 cmd = readb(&pccs->cmd);
1871                 status = readb(&pccs->buffer_status);
1872                 switch (cmd) {
1873                 case CCS_DOWNLOAD_STARTUP_PARAMS:       /* Happens in firmware someday */
1874                         del_timer(&local->timer);
1875                         if (status == CCS_COMMAND_COMPLETE) {
1876                                 dev_dbg(&link->dev,
1877                                       "ray_cs interrupt download_startup_parameters OK\n");
1878                         } else {
1879                                 dev_dbg(&link->dev,
1880                                       "ray_cs interrupt download_startup_parameters fail\n");
1881                         }
1882                         break;
1883                 case CCS_UPDATE_PARAMS:
1884                         dev_dbg(&link->dev, "ray_cs interrupt update params done\n");
1885                         if (status != CCS_COMMAND_COMPLETE) {
1886                                 tmp =
1887                                     readb(&pccs->var.update_param.
1888                                           failure_cause);
1889                                 dev_dbg(&link->dev,
1890                                       "ray_cs interrupt update params failed - reason %d\n",
1891                                       tmp);
1892                         }
1893                         break;
1894                 case CCS_REPORT_PARAMS:
1895                         dev_dbg(&link->dev, "ray_cs interrupt report params done\n");
1896                         break;
1897                 case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
1898                         dev_dbg(&link->dev,
1899                               "ray_cs interrupt CCS Update Multicast List done\n");
1900                         break;
1901                 case CCS_UPDATE_POWER_SAVINGS_MODE:
1902                         dev_dbg(&link->dev,
1903                               "ray_cs interrupt update power save mode done\n");
1904                         break;
1905                 case CCS_START_NETWORK:
1906                 case CCS_JOIN_NETWORK:
1907                         memcpy(memtmp, local->sparm.b4.a_current_ess_id,
1908                                                                 ESSID_SIZE);
1909                         memtmp[ESSID_SIZE] = '\0';
1910 
1911                         if (status == CCS_COMMAND_COMPLETE) {
1912                                 if (readb
1913                                     (&pccs->var.start_network.net_initiated) ==
1914                                     1) {
1915                                         dev_dbg(&link->dev,
1916                                               "ray_cs interrupt network \"%s\" started\n",
1917                                               memtmp);
1918                                 } else {
1919                                         dev_dbg(&link->dev,
1920                                               "ray_cs interrupt network \"%s\" joined\n",
1921                                               memtmp);
1922                                 }
1923                                 memcpy_fromio(&local->bss_id,
1924                                               pccs->var.start_network.bssid,
1925                                               ADDRLEN);
1926 
1927                                 if (local->fw_ver == 0x55)
1928                                         local->net_default_tx_rate = 3;
1929                                 else
1930                                         local->net_default_tx_rate =
1931                                             readb(&pccs->var.start_network.
1932                                                   net_default_tx_rate);
1933                                 local->encryption =
1934                                     readb(&pccs->var.start_network.encryption);
1935                                 if (!sniffer && (local->net_type == INFRA)
1936                                     && !(local->sparm.b4.a_acting_as_ap_status)) {
1937                                         authenticate(local);
1938                                 }
1939                                 local->card_status = CARD_ACQ_COMPLETE;
1940                         } else {
1941                                 local->card_status = CARD_ACQ_FAILED;
1942 
1943                                 del_timer(&local->timer);
1944                                 local->timer.expires = jiffies + HZ * 5;
1945                                 local->timer.data = (long)local;
1946                                 if (status == CCS_START_NETWORK) {
1947                                         dev_dbg(&link->dev,
1948                                               "ray_cs interrupt network \"%s\" start failed\n",
1949                                               memtmp);
1950                                         local->timer.function = start_net;
1951                                 } else {
1952                                         dev_dbg(&link->dev,
1953                                               "ray_cs interrupt network \"%s\" join failed\n",
1954                                               memtmp);
1955                                         local->timer.function = join_net;
1956                                 }
1957                                 add_timer(&local->timer);
1958                         }
1959                         break;
1960                 case CCS_START_ASSOCIATION:
1961                         if (status == CCS_COMMAND_COMPLETE) {
1962                                 local->card_status = CARD_ASSOC_COMPLETE;
1963                                 dev_dbg(&link->dev, "ray_cs association successful\n");
1964                         } else {
1965                                 dev_dbg(&link->dev, "ray_cs association failed,\n");
1966                                 local->card_status = CARD_ASSOC_FAILED;
1967                                 join_net((u_long) local);
1968                         }
1969                         break;
1970                 case CCS_TX_REQUEST:
1971                         if (status == CCS_COMMAND_COMPLETE) {
1972                                 dev_dbg(&link->dev,
1973                                       "ray_cs interrupt tx request complete\n");
1974                         } else {
1975                                 dev_dbg(&link->dev,
1976                                       "ray_cs interrupt tx request failed\n");
1977                         }
1978                         if (!sniffer)
1979                                 netif_start_queue(dev);
1980                         netif_wake_queue(dev);
1981                         break;
1982                 case CCS_TEST_MEMORY:
1983                         dev_dbg(&link->dev, "ray_cs interrupt mem test done\n");
1984                         break;
1985                 case CCS_SHUTDOWN:
1986                         dev_dbg(&link->dev,
1987                               "ray_cs interrupt Unexpected CCS returned - Shutdown\n");
1988                         break;
1989                 case CCS_DUMP_MEMORY:
1990                         dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n");
1991                         break;
1992                 case CCS_START_TIMER:
1993                         dev_dbg(&link->dev,
1994                               "ray_cs interrupt DING - raylink timer expired\n");
1995                         break;
1996                 default:
1997                         dev_dbg(&link->dev,
1998                               "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",
1999                               rcsindex, cmd);
2000                 }
2001                 writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
2002         } else { /* It's an RCS */
2003 
2004                 prcs = rcs_base(local) + rcsindex;
2005 
2006                 switch (readb(&prcs->interrupt_id)) {
2007                 case PROCESS_RX_PACKET:
2008                         ray_rx(dev, local, prcs);
2009                         break;
2010                 case REJOIN_NET_COMPLETE:
2011                         dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n");
2012                         local->card_status = CARD_ACQ_COMPLETE;
2013                         /* do we need to clear tx buffers CCS's? */
2014                         if (local->sparm.b4.a_network_type == ADHOC) {
2015                                 if (!sniffer)
2016                                         netif_start_queue(dev);
2017                         } else {
2018                                 memcpy_fromio(&local->bss_id,
2019                                               prcs->var.rejoin_net_complete.
2020                                               bssid, ADDRLEN);
2021                                 dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n",
2022                                         local->bss_id);
2023                                 if (!sniffer)
2024                                         authenticate(local);
2025                         }
2026                         break;
2027                 case ROAMING_INITIATED:
2028                         dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n");
2029                         netif_stop_queue(dev);
2030                         local->card_status = CARD_DOING_ACQ;
2031                         break;
2032                 case JAPAN_CALL_SIGN_RXD:
2033                         dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n");
2034                         break;
2035                 default:
2036                         dev_dbg(&link->dev,
2037                               "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",
2038                               rcsindex,
2039                               (unsigned int)readb(&prcs->interrupt_id));
2040                         break;
2041                 }
2042                 writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2043         }
2044         clear_interrupt(local);
2045         return IRQ_HANDLED;
2046 } /* ray_interrupt */
2047 
2048 /*===========================================================================*/
2049 static void ray_rx(struct net_device *dev, ray_dev_t *local,
2050                    struct rcs __iomem *prcs)
2051 {
2052         int rx_len;
2053         unsigned int pkt_addr;
2054         void __iomem *pmsg;
2055         pr_debug("ray_rx process rx packet\n");
2056 
2057         /* Calculate address of packet within Rx buffer */
2058         pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2059                     + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2060         /* Length of first packet fragment */
2061         rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2062             + readb(&prcs->var.rx_packet.rx_data_length[1]);
2063 
2064         local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2065         pmsg = local->rmem + pkt_addr;
2066         switch (readb(pmsg)) {
2067         case DATA_TYPE:
2068                 pr_debug("ray_rx data type\n");
2069                 rx_data(dev, prcs, pkt_addr, rx_len);
2070                 break;
2071         case AUTHENTIC_TYPE:
2072                 pr_debug("ray_rx authentic type\n");
2073                 if (sniffer)
2074                         rx_data(dev, prcs, pkt_addr, rx_len);
2075                 else
2076                         rx_authenticate(local, prcs, pkt_addr, rx_len);
2077                 break;
2078         case DEAUTHENTIC_TYPE:
2079                 pr_debug("ray_rx deauth type\n");
2080                 if (sniffer)
2081                         rx_data(dev, prcs, pkt_addr, rx_len);
2082                 else
2083                         rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2084                 break;
2085         case NULL_MSG_TYPE:
2086                 pr_debug("ray_cs rx NULL msg\n");
2087                 break;
2088         case BEACON_TYPE:
2089                 pr_debug("ray_rx beacon type\n");
2090                 if (sniffer)
2091                         rx_data(dev, prcs, pkt_addr, rx_len);
2092 
2093                 copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr,
2094                                   rx_len < sizeof(struct beacon_rx) ?
2095                                   rx_len : sizeof(struct beacon_rx));
2096 
2097                 local->beacon_rxed = 1;
2098                 /* Get the statistics so the card counters never overflow */
2099                 ray_get_stats(dev);
2100                 break;
2101         default:
2102                 pr_debug("ray_cs unknown pkt type %2x\n",
2103                       (unsigned int)readb(pmsg));
2104                 break;
2105         }
2106 
2107 } /* end ray_rx */
2108 
2109 /*===========================================================================*/
2110 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
2111                     unsigned int pkt_addr, int rx_len)
2112 {
2113         struct sk_buff *skb = NULL;
2114         struct rcs __iomem *prcslink = prcs;
2115         ray_dev_t *local = netdev_priv(dev);
2116         UCHAR *rx_ptr;
2117         int total_len;
2118         int tmp;
2119 #ifdef WIRELESS_SPY
2120         int siglev = local->last_rsl;
2121         u_char linksrcaddr[ETH_ALEN];   /* Other end of the wireless link */
2122 #endif
2123 
2124         if (!sniffer) {
2125                 if (translate) {
2126 /* TBD length needs fixing for translated header */
2127                         if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2128                             rx_len >
2129                             (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2130                              FCS_LEN)) {
2131                                 pr_debug(
2132                                       "ray_cs invalid packet length %d received\n",
2133                                       rx_len);
2134                                 return;
2135                         }
2136                 } else { /* encapsulated ethernet */
2137 
2138                         if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2139                             rx_len >
2140                             (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2141                              FCS_LEN)) {
2142                                 pr_debug(
2143                                       "ray_cs invalid packet length %d received\n",
2144                                       rx_len);
2145                                 return;
2146                         }
2147                 }
2148         }
2149         pr_debug("ray_cs rx_data packet\n");
2150         /* If fragmented packet, verify sizes of fragments add up */
2151         if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2152                 pr_debug("ray_cs rx'ed fragment\n");
2153                 tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2154                     + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2155                 total_len = tmp;
2156                 prcslink = prcs;
2157                 do {
2158                         tmp -=
2159                             (readb(&prcslink->var.rx_packet.rx_data_length[0])
2160                              << 8)
2161                             + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2162                         if (readb(&prcslink->var.rx_packet.next_frag_rcs_index)
2163                             == 0xFF || tmp < 0)
2164                                 break;
2165                         prcslink = rcs_base(local)
2166                             + readb(&prcslink->link_field);
2167                 } while (1);
2168 
2169                 if (tmp < 0) {
2170                         pr_debug(
2171                               "ray_cs rx_data fragment lengths don't add up\n");
2172                         local->stats.rx_dropped++;
2173                         release_frag_chain(local, prcs);
2174                         return;
2175                 }
2176         } else { /* Single unfragmented packet */
2177                 total_len = rx_len;
2178         }
2179 
2180         skb = dev_alloc_skb(total_len + 5);
2181         if (skb == NULL) {
2182                 pr_debug("ray_cs rx_data could not allocate skb\n");
2183                 local->stats.rx_dropped++;
2184                 if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2185                         release_frag_chain(local, prcs);
2186                 return;
2187         }
2188         skb_reserve(skb, 2);    /* Align IP on 16 byte (TBD check this) */
2189 
2190         pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len,
2191               rx_len);
2192 
2193 /************************/
2194         /* Reserve enough room for the whole damn packet. */
2195         rx_ptr = skb_put(skb, total_len);
2196         /* Copy the whole packet to sk_buff */
2197         rx_ptr +=
2198             copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2199         /* Get source address */
2200 #ifdef WIRELESS_SPY
2201         skb_copy_from_linear_data_offset(skb,
2202                                          offsetof(struct mac_header, addr_2),
2203                                          linksrcaddr, ETH_ALEN);
2204 #endif
2205         /* Now, deal with encapsulation/translation/sniffer */
2206         if (!sniffer) {
2207                 if (!translate) {
2208                         /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2209 /* TBD reserve            skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2210                         skb_pull(skb, RX_MAC_HEADER_LENGTH);
2211                 } else {
2212                         /* Do translation */
2213                         untranslate(local, skb, total_len);
2214                 }
2215         } else { /* sniffer mode, so just pass whole packet */
2216         };
2217 
2218 /************************/
2219         /* Now pick up the rest of the fragments if any */
2220         tmp = 17;
2221         if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2222                 prcslink = prcs;
2223                 pr_debug("ray_cs rx_data in fragment loop\n");
2224                 do {
2225                         prcslink = rcs_base(local)
2226                             +
2227                             readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2228                         rx_len =
2229                             ((readb(&prcslink->var.rx_packet.rx_data_length[0])
2230                               << 8)
2231                              +
2232                              readb(&prcslink->var.rx_packet.rx_data_length[1]))
2233                             & RX_BUFF_END;
2234                         pkt_addr =
2235                             ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) <<
2236                               8)
2237                              + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2238                             & RX_BUFF_END;
2239 
2240                         rx_ptr +=
2241                             copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2242 
2243                 } while (tmp-- &&
2244                          readb(&prcslink->var.rx_packet.next_frag_rcs_index) !=
2245                          0xFF);
2246                 release_frag_chain(local, prcs);
2247         }
2248 
2249         skb->protocol = eth_type_trans(skb, dev);
2250         netif_rx(skb);
2251         local->stats.rx_packets++;
2252         local->stats.rx_bytes += total_len;
2253 
2254         /* Gather signal strength per address */
2255 #ifdef WIRELESS_SPY
2256         /* For the Access Point or the node having started the ad-hoc net
2257          * note : ad-hoc work only in some specific configurations, but we
2258          * kludge in ray_get_wireless_stats... */
2259         if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) {
2260                 /* Update statistics */
2261                 /*local->wstats.qual.qual = none ? */
2262                 local->wstats.qual.level = siglev;
2263                 /*local->wstats.qual.noise = none ? */
2264                 local->wstats.qual.updated = 0x2;
2265         }
2266         /* Now, update the spy stuff */
2267         {
2268                 struct iw_quality wstats;
2269                 wstats.level = siglev;
2270                 /* wstats.noise = none ? */
2271                 /* wstats.qual = none ? */
2272                 wstats.updated = 0x2;
2273                 /* Update spy records */
2274                 wireless_spy_update(dev, linksrcaddr, &wstats);
2275         }
2276 #endif /* WIRELESS_SPY */
2277 } /* end rx_data */
2278 
2279 /*===========================================================================*/
2280 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2281 {
2282         snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH);
2283         struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2284         __be16 type = *(__be16 *) psnap->ethertype;
2285         int delta;
2286         struct ethhdr *peth;
2287         UCHAR srcaddr[ADDRLEN];
2288         UCHAR destaddr[ADDRLEN];
2289         static const UCHAR org_bridge[3] = { 0, 0, 0xf8 };
2290         static const UCHAR org_1042[3] = { 0, 0, 0 };
2291 
2292         memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2293         memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2294 
2295 #if 0
2296         if {
2297                 print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
2298                                DUMP_PREFIX_NONE, 16, 1,
2299                                skb->data, 64, true);
2300                 printk(KERN_DEBUG
2301                        "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2302                        ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
2303                        psnap->org[0], psnap->org[1], psnap->org[2]);
2304                 printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data);
2305         }
2306 #endif
2307 
2308         if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2309                 /* not a snap type so leave it alone */
2310                 pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2311                       psnap->dsap, psnap->ssap, psnap->ctrl);
2312 
2313                 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2314                 peth = (struct ethhdr *)(skb->data + delta);
2315                 peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2316         } else { /* Its a SNAP */
2317                 if (memcmp(psnap->org, org_bridge, 3) == 0) {
2318                 /* EtherII and nuke the LLC */
2319                         pr_debug("ray_cs untranslate Bridge encap\n");
2320                         delta = RX_MAC_HEADER_LENGTH
2321                             + sizeof(struct snaphdr_t) - ETH_HLEN;
2322                         peth = (struct ethhdr *)(skb->data + delta);
2323                         peth->h_proto = type;
2324                 } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2325                         switch (ntohs(type)) {
2326                         case ETH_P_IPX:
2327                         case ETH_P_AARP:
2328                                 pr_debug("ray_cs untranslate RFC IPX/AARP\n");
2329                                 delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2330                                 peth = (struct ethhdr *)(skb->data + delta);
2331                                 peth->h_proto =
2332                                     htons(len - RX_MAC_HEADER_LENGTH);
2333                                 break;
2334                         default:
2335                                 pr_debug("ray_cs untranslate RFC default\n");
2336                                 delta = RX_MAC_HEADER_LENGTH +
2337                                     sizeof(struct snaphdr_t) - ETH_HLEN;
2338                                 peth = (struct ethhdr *)(skb->data + delta);
2339                                 peth->h_proto = type;
2340                                 break;
2341                         }
2342                 } else {
2343                         printk("ray_cs untranslate very confused by packet\n");
2344                         delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2345                         peth = (struct ethhdr *)(skb->data + delta);
2346                         peth->h_proto = type;
2347                 }
2348         }
2349 /* TBD reserve  skb_reserve(skb, delta); */
2350         skb_pull(skb, delta);
2351         pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta,
2352               skb->data);
2353         memcpy(peth->h_dest, destaddr, ADDRLEN);
2354         memcpy(peth->h_source, srcaddr, ADDRLEN);
2355 #if 0
2356         {
2357                 int i;
2358                 printk(KERN_DEBUG "skb->data after untranslate:");
2359                 for (i = 0; i < 64; i++)
2360                         printk("%02x ", skb->data[i]);
2361                 printk("\n");
2362         }
2363 #endif
2364 } /* end untranslate */
2365 
2366 /*===========================================================================*/
2367 /* Copy data from circular receive buffer to PC memory.
2368  * dest     = destination address in PC memory
2369  * pkt_addr = source address in receive buffer
2370  * len      = length of packet to copy
2371  */
2372 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr,
2373                              int length)
2374 {
2375         int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2376         if (wrap_bytes <= 0) {
2377                 memcpy_fromio(dest, local->rmem + pkt_addr, length);
2378         } else { /* Packet wrapped in circular buffer */
2379 
2380                 memcpy_fromio(dest, local->rmem + pkt_addr,
2381                               length - wrap_bytes);
2382                 memcpy_fromio(dest + length - wrap_bytes, local->rmem,
2383                               wrap_bytes);
2384         }
2385         return length;
2386 }
2387 
2388 /*===========================================================================*/
2389 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs)
2390 {
2391         struct rcs __iomem *prcslink = prcs;
2392         int tmp = 17;
2393         unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2394 
2395         while (tmp--) {
2396                 writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2397                 if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2398                         pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n",
2399                               rcsindex);
2400                         break;
2401                 }
2402                 prcslink = rcs_base(local) + rcsindex;
2403                 rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2404         }
2405         writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2406 }
2407 
2408 /*===========================================================================*/
2409 static void authenticate(ray_dev_t *local)
2410 {
2411         struct pcmcia_device *link = local->finder;
2412         dev_dbg(&link->dev, "ray_cs Starting authentication.\n");
2413         if (!(pcmcia_dev_present(link))) {
2414                 dev_dbg(&link->dev, "ray_cs authenticate - device not present\n");
2415                 return;
2416         }
2417 
2418         del_timer(&local->timer);
2419         if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2420                 local->timer.function = join_net;
2421         } else {
2422                 local->timer.function = authenticate_timeout;
2423         }
2424         local->timer.expires = jiffies + HZ * 2;
2425         local->timer.data = (long)local;
2426         add_timer(&local->timer);
2427         local->authentication_state = AWAITING_RESPONSE;
2428 } /* end authenticate */
2429 
2430 /*===========================================================================*/
2431 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2432                             unsigned int pkt_addr, int rx_len)
2433 {
2434         UCHAR buff[256];
2435         struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2436 
2437         del_timer(&local->timer);
2438 
2439         copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2440         /* if we are trying to get authenticated */
2441         if (local->sparm.b4.a_network_type == ADHOC) {
2442                 pr_debug("ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n",
2443                       msg->var[0], msg->var[1], msg->var[2], msg->var[3],
2444                       msg->var[4], msg->var[5]);
2445                 if (msg->var[2] == 1) {
2446                         pr_debug("ray_cs Sending authentication response.\n");
2447                         if (!build_auth_frame
2448                             (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2449                                 local->authentication_state = NEED_TO_AUTH;
2450                                 memcpy(local->auth_id, msg->mac.addr_2,
2451                                        ADDRLEN);
2452                         }
2453                 }
2454         } else { /* Infrastructure network */
2455 
2456                 if (local->authentication_state == AWAITING_RESPONSE) {
2457                         /* Verify authentication sequence #2 and success */
2458                         if (msg->var[2] == 2) {
2459                                 if ((msg->var[3] | msg->var[4]) == 0) {
2460                                         pr_debug("Authentication successful\n");
2461                                         local->card_status = CARD_AUTH_COMPLETE;
2462                                         associate(local);
2463                                         local->authentication_state =
2464                                             AUTHENTICATED;
2465                                 } else {
2466                                         pr_debug("Authentication refused\n");
2467                                         local->card_status = CARD_AUTH_REFUSED;
2468                                         join_net((u_long) local);
2469                                         local->authentication_state =
2470                                             UNAUTHENTICATED;
2471                                 }
2472                         }
2473                 }
2474         }
2475 
2476 } /* end rx_authenticate */
2477 
2478 /*===========================================================================*/
2479 static void associate(ray_dev_t *local)
2480 {
2481         struct ccs __iomem *pccs;
2482         struct pcmcia_device *link = local->finder;
2483         struct net_device *dev = link->priv;
2484         int ccsindex;
2485         if (!(pcmcia_dev_present(link))) {
2486                 dev_dbg(&link->dev, "ray_cs associate - device not present\n");
2487                 return;
2488         }
2489         /* If no tx buffers available, return */
2490         if ((ccsindex = get_free_ccs(local)) < 0) {
2491 /* TBD should never be here but... what if we are? */
2492                 dev_dbg(&link->dev, "ray_cs associate - No free ccs\n");
2493                 return;
2494         }
2495         dev_dbg(&link->dev, "ray_cs Starting association with access point\n");
2496         pccs = ccs_base(local) + ccsindex;
2497         /* fill in the CCS */
2498         writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2499         /* Interrupt the firmware to process the command */
2500         if (interrupt_ecf(local, ccsindex)) {
2501                 dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
2502                 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2503 
2504                 del_timer(&local->timer);
2505                 local->timer.expires = jiffies + HZ * 2;
2506                 local->timer.data = (long)local;
2507                 local->timer.function = join_net;
2508                 add_timer(&local->timer);
2509                 local->card_status = CARD_ASSOC_FAILED;
2510                 return;
2511         }
2512         if (!sniffer)
2513                 netif_start_queue(dev);
2514 
2515 } /* end associate */
2516 
2517 /*===========================================================================*/
2518 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2519                               unsigned int pkt_addr, int rx_len)
2520 {
2521 /*  UCHAR buff[256];
2522     struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2523 */
2524         pr_debug("Deauthentication frame received\n");
2525         local->authentication_state = UNAUTHENTICATED;
2526         /* Need to reauthenticate or rejoin depending on reason code */
2527 /*  copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2528  */
2529 }
2530 
2531 /*===========================================================================*/
2532 static void clear_interrupt(ray_dev_t *local)
2533 {
2534         writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2535 }
2536 
2537 /*===========================================================================*/
2538 #ifdef CONFIG_PROC_FS
2539 #define MAXDATA (PAGE_SIZE - 80)
2540 
2541 static const char *card_status[] = {
2542         "Card inserted - uninitialized",        /* 0 */
2543         "Card not downloaded",                  /* 1 */
2544         "Waiting for download parameters",      /* 2 */
2545         "Card doing acquisition",               /* 3 */
2546         "Acquisition complete",                 /* 4 */
2547         "Authentication complete",              /* 5 */
2548         "Association complete",                 /* 6 */
2549         "???", "???", "???", "???",             /* 7 8 9 10 undefined */
2550         "Card init error",                      /* 11 */
2551         "Download parameters error",            /* 12 */
2552         "???",                                  /* 13 */
2553         "Acquisition failed",                   /* 14 */
2554         "Authentication refused",               /* 15 */
2555         "Association failed"                    /* 16 */
2556 };
2557 
2558 static const char *nettype[] = { "Adhoc", "Infra " };
2559 static const char *framing[] = { "Encapsulation", "Translation" }
2560 
2561 ;
2562 /*===========================================================================*/
2563 static int ray_cs_proc_show(struct seq_file *m, void *v)
2564 {
2565 /* Print current values which are not available via other means
2566  * eg ifconfig
2567  */
2568         int i;
2569         struct pcmcia_device *link;
2570         struct net_device *dev;
2571         ray_dev_t *local;
2572         UCHAR *p;
2573         struct freq_hop_element *pfh;
2574         UCHAR c[33];
2575 
2576         link = this_device;
2577         if (!link)
2578                 return 0;
2579         dev = (struct net_device *)link->priv;
2580         if (!dev)
2581                 return 0;
2582         local = netdev_priv(dev);
2583         if (!local)
2584                 return 0;
2585 
2586         seq_puts(m, "Raylink Wireless LAN driver status\n");
2587         seq_printf(m, "%s\n", rcsid);
2588         /* build 4 does not report version, and field is 0x55 after memtest */
2589         seq_puts(m, "Firmware version     = ");
2590         if (local->fw_ver == 0x55)
2591                 seq_puts(m, "4 - Use dump_cis for more details\n");
2592         else
2593                 seq_printf(m, "%2d.%02d.%02d\n",
2594                            local->fw_ver, local->fw_bld, local->fw_var);
2595 
2596         for (i = 0; i < 32; i++)
2597                 c[i] = local->sparm.b5.a_current_ess_id[i];
2598         c[32] = 0;
2599         seq_printf(m, "%s network ESSID = \"%s\"\n",
2600                    nettype[local->sparm.b5.a_network_type], c);
2601 
2602         p = local->bss_id;
2603         seq_printf(m, "BSSID                = %pM\n", p);
2604 
2605         seq_printf(m, "Country code         = %d\n",
2606                    local->sparm.b5.a_curr_country_code);
2607 
2608         i = local->card_status;
2609         if (i < 0)
2610                 i = 10;
2611         if (i > 16)
2612                 i = 10;
2613         seq_printf(m, "Card status          = %s\n", card_status[i]);
2614 
2615         seq_printf(m, "Framing mode         = %s\n", framing[translate]);
2616 
2617         seq_printf(m, "Last pkt signal lvl  = %d\n", local->last_rsl);
2618 
2619         if (local->beacon_rxed) {
2620                 /* Pull some fields out of last beacon received */
2621                 seq_printf(m, "Beacon Interval      = %d Kus\n",
2622                            local->last_bcn.beacon_intvl[0]
2623                            + 256 * local->last_bcn.beacon_intvl[1]);
2624 
2625                 p = local->last_bcn.elements;
2626                 if (p[0] == C_ESSID_ELEMENT_ID)
2627                         p += p[1] + 2;
2628                 else {
2629                         seq_printf(m,
2630                                    "Parse beacon failed at essid element id = %d\n",
2631                                    p[0]);
2632                         return 0;
2633                 }
2634 
2635                 if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2636                         seq_puts(m, "Supported rate codes = ");
2637                         for (i = 2; i < p[1] + 2; i++)
2638                                 seq_printf(m, "0x%02x ", p[i]);
2639                         seq_putc(m, '\n');
2640                         p += p[1] + 2;
2641                 } else {
2642                         seq_puts(m, "Parse beacon failed at rates element\n");
2643                         return 0;
2644                 }
2645 
2646                 if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2647                         pfh = (struct freq_hop_element *)p;
2648                         seq_printf(m, "Hop dwell            = %d Kus\n",
2649                                    pfh->dwell_time[0] +
2650                                    256 * pfh->dwell_time[1]);
2651                         seq_printf(m, "Hop set              = %d\n",
2652                                    pfh->hop_set);
2653                         seq_printf(m, "Hop pattern          = %d\n",
2654                                    pfh->hop_pattern);
2655                         seq_printf(m, "Hop index            = %d\n",
2656                                    pfh->hop_index);
2657                         p += p[1] + 2;
2658                 } else {
2659                         seq_puts(m,
2660                                  "Parse beacon failed at FH param element\n");
2661                         return 0;
2662                 }
2663         } else {
2664                 seq_puts(m, "No beacons received\n");
2665         }
2666         return 0;
2667 }
2668 
2669 static int ray_cs_proc_open(struct inode *inode, struct file *file)
2670 {
2671         return single_open(file, ray_cs_proc_show, NULL);
2672 }
2673 
2674 static const struct file_operations ray_cs_proc_fops = {
2675         .owner = THIS_MODULE,
2676         .open = ray_cs_proc_open,
2677         .read = seq_read,
2678         .llseek = seq_lseek,
2679         .release = single_release,
2680 };
2681 #endif
2682 /*===========================================================================*/
2683 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2684 {
2685         int addr;
2686         struct ccs __iomem *pccs;
2687         struct tx_msg __iomem *ptx;
2688         int ccsindex;
2689 
2690         /* If no tx buffers available, return */
2691         if ((ccsindex = get_free_tx_ccs(local)) < 0) {
2692                 pr_debug("ray_cs send authenticate - No free tx ccs\n");
2693                 return -1;
2694         }
2695 
2696         pccs = ccs_base(local) + ccsindex;
2697 
2698         /* Address in card space */
2699         addr = TX_BUF_BASE + (ccsindex << 11);
2700         /* fill in the CCS */
2701         writeb(CCS_TX_REQUEST, &pccs->cmd);
2702         writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2703         writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2704         writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2705         writeb(TX_AUTHENTICATE_LENGTH_LSB,
2706                pccs->var.tx_request.tx_data_length + 1);
2707         writeb(0, &pccs->var.tx_request.pow_sav_mode);
2708 
2709         ptx = local->sram + addr;
2710         /* fill in the mac header */
2711         writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2712         writeb(0, &ptx->mac.frame_ctl_2);
2713 
2714         memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2715         memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2716         memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2717 
2718         /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2719         memset_io(ptx->var, 0, 6);
2720         writeb(auth_type & 0xff, ptx->var + 2);
2721 
2722         /* Interrupt the firmware to process the command */
2723         if (interrupt_ecf(local, ccsindex)) {
2724                 pr_debug(
2725                       "ray_cs send authentication request failed - ECF not ready for intr\n");
2726                 writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2727                 return -1;
2728         }
2729         return 0;
2730 } /* End build_auth_frame */
2731 
2732 /*===========================================================================*/
2733 #ifdef CONFIG_PROC_FS
2734 static ssize_t ray_cs_essid_proc_write(struct file *file,
2735                 const char __user *buffer, size_t count, loff_t *pos)
2736 {
2737         static char proc_essid[33];
2738         unsigned int len = count;
2739 
2740         if (len > 32)
2741                 len = 32;
2742         memset(proc_essid, 0, 33);
2743         if (copy_from_user(proc_essid, buffer, len))
2744                 return -EFAULT;
2745         essid = proc_essid;
2746         return count;
2747 }
2748 
2749 static const struct file_operations ray_cs_essid_proc_fops = {
2750         .owner          = THIS_MODULE,
2751         .write          = ray_cs_essid_proc_write,
2752         .llseek         = noop_llseek,
2753 };
2754 
2755 static ssize_t int_proc_write(struct file *file, const char __user *buffer,
2756                               size_t count, loff_t *pos)
2757 {
2758         static char proc_number[10];
2759         char *p;
2760         int nr, len;
2761 
2762         if (!count)
2763                 return 0;
2764 
2765         if (count > 9)
2766                 return -EINVAL;
2767         if (copy_from_user(proc_number, buffer, count))
2768                 return -EFAULT;
2769         p = proc_number;
2770         nr = 0;
2771         len = count;
2772         do {
2773                 unsigned int c = *p - '';
2774                 if (c > 9)
2775                         return -EINVAL;
2776                 nr = nr * 10 + c;
2777                 p++;
2778         } while (--len);
2779         *(int *)PDE_DATA(file_inode(file)) = nr;
2780         return count;
2781 }
2782 
2783 static const struct file_operations int_proc_fops = {
2784         .owner          = THIS_MODULE,
2785         .write          = int_proc_write,
2786         .llseek         = noop_llseek,
2787 };
2788 #endif
2789 
2790 static const struct pcmcia_device_id ray_ids[] = {
2791         PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2792         PCMCIA_DEVICE_NULL,
2793 };
2794 
2795 MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2796 
2797 static struct pcmcia_driver ray_driver = {
2798         .owner = THIS_MODULE,
2799         .name = "ray_cs",
2800         .probe = ray_probe,
2801         .remove = ray_detach,
2802         .id_table = ray_ids,
2803         .suspend = ray_suspend,
2804         .resume = ray_resume,
2805 };
2806 
2807 static int __init init_ray_cs(void)
2808 {
2809         int rc;
2810 
2811         pr_debug("%s\n", rcsid);
2812         rc = pcmcia_register_driver(&ray_driver);
2813         pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n",
2814               rc);
2815 
2816 #ifdef CONFIG_PROC_FS
2817         proc_mkdir("driver/ray_cs", NULL);
2818 
2819         proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops);
2820         proc_create("driver/ray_cs/essid", S_IWUSR, NULL, &ray_cs_essid_proc_fops);
2821         proc_create_data("driver/ray_cs/net_type", S_IWUSR, NULL, &int_proc_fops, &net_type);
2822         proc_create_data("driver/ray_cs/translate", S_IWUSR, NULL, &int_proc_fops, &translate);
2823 #endif
2824         if (translate != 0)
2825                 translate = 1;
2826         return 0;
2827 } /* init_ray_cs */
2828 
2829 /*===========================================================================*/
2830 
2831 static void __exit exit_ray_cs(void)
2832 {
2833         pr_debug("ray_cs: cleanup_module\n");
2834 
2835 #ifdef CONFIG_PROC_FS
2836         remove_proc_entry("driver/ray_cs/ray_cs", NULL);
2837         remove_proc_entry("driver/ray_cs/essid", NULL);
2838         remove_proc_entry("driver/ray_cs/net_type", NULL);
2839         remove_proc_entry("driver/ray_cs/translate", NULL);
2840         remove_proc_entry("driver/ray_cs", NULL);
2841 #endif
2842 
2843         pcmcia_unregister_driver(&ray_driver);
2844 } /* exit_ray_cs */
2845 
2846 module_init(init_ray_cs);
2847 module_exit(exit_ray_cs);
2848 
2849 /*===========================================================================*/
2850 

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