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ray_cs.c
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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, [email protected]
6  *
7  *
8  * Copyright (c) 1998 Corey Thomas ([email protected])
9  *
10  * This driver is free software; you can redistribute it and/or modify
11  * it under the terms of version 2 only of the GNU General Public License as
12  * published by the Free Software Foundation.
13  *
14  * It is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
22  *
23  * Changes:
24  * Arnaldo Carvalho de Melo <[email protected]> - 08/08/2000
25  * - reorganize kmallocs in ray_attach, checking all for failure
26  * and releasing the previous allocations if one fails
27  *
28  * Daniele Bellucci <[email protected]> - 07/10/2003
29  * - Audit copy_to_user in ioctl(SIOCGIWESSID)
30  *
31 =============================================================================*/
32 
33 #include <linux/module.h>
34 #include <linux/kernel.h>
35 #include <linux/proc_fs.h>
36 #include <linux/ptrace.h>
37 #include <linux/seq_file.h>
38 #include <linux/string.h>
39 #include <linux/timer.h>
40 #include <linux/init.h>
41 #include <linux/netdevice.h>
42 #include <linux/etherdevice.h>
43 #include <linux/if_arp.h>
44 #include <linux/ioport.h>
45 #include <linux/skbuff.h>
46 #include <linux/ieee80211.h>
47 
48 #include <pcmcia/cistpl.h>
49 #include <pcmcia/cisreg.h>
50 #include <pcmcia/ds.h>
51 
52 #include <linux/wireless.h>
53 #include <net/iw_handler.h>
54 
55 #include <asm/io.h>
56 #include <asm/byteorder.h>
57 #include <asm/uaccess.h>
58 
59 /* Warning : these stuff will slow down the driver... */
60 #define WIRELESS_SPY /* Enable spying addresses */
61 /* Definitions we need for spy */
62 typedef struct iw_statistics iw_stats;
63 typedef u_char mac_addr[ETH_ALEN]; /* Hardware address */
64 
65 #include "rayctl.h"
66 #include "ray_cs.h"
67 
68 
70 static int ray_config(struct pcmcia_device *link);
71 static void ray_release(struct pcmcia_device *link);
72 static void ray_detach(struct pcmcia_device *p_dev);
73 
74 /***** Prototypes indicated by device structure ******************************/
75 static int ray_dev_close(struct net_device *dev);
76 static int ray_dev_config(struct net_device *dev, struct ifmap *map);
77 static struct net_device_stats *ray_get_stats(struct net_device *dev);
78 static int ray_dev_init(struct net_device *dev);
79 
80 static int ray_open(struct net_device *dev);
81 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
82  struct net_device *dev);
83 static void set_multicast_list(struct net_device *dev);
84 static void ray_update_multi_list(struct net_device *dev, int all);
85 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
86  unsigned char *data, int len);
87 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
88  UCHAR msg_type, unsigned char *data);
89 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len);
90 static iw_stats *ray_get_wireless_stats(struct net_device *dev);
91 static const struct iw_handler_def ray_handler_def;
92 
93 /***** Prototypes for raylink functions **************************************/
94 static void authenticate(ray_dev_t *local);
95 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type);
96 static void authenticate_timeout(u_long);
97 static int get_free_ccs(ray_dev_t *local);
98 static int get_free_tx_ccs(ray_dev_t *local);
99 static void init_startup_params(ray_dev_t *local);
100 static int parse_addr(char *in_str, UCHAR *out);
101 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev, UCHAR type);
102 static int ray_init(struct net_device *dev);
103 static int interrupt_ecf(ray_dev_t *local, int ccs);
104 static void ray_reset(struct net_device *dev);
105 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value, int len);
106 static void verify_dl_startup(u_long);
107 
108 /* Prototypes for interrpt time functions **********************************/
109 static irqreturn_t ray_interrupt(int reg, void *dev_id);
110 static void clear_interrupt(ray_dev_t *local);
111 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
112  unsigned int pkt_addr, int rx_len);
113 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr, int len);
114 static void ray_rx(struct net_device *dev, ray_dev_t *local, struct rcs __iomem *prcs);
115 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs);
116 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
117  unsigned int pkt_addr, int rx_len);
118 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
119  unsigned int pkt_addr, int rx_len);
120 static void associate(ray_dev_t *local);
121 
122 /* Card command functions */
123 static int dl_startup_params(struct net_device *dev);
124 static void join_net(u_long local);
125 static void start_net(u_long local);
126 /* void start_net(ray_dev_t *local); */
127 
128 /*===========================================================================*/
129 /* Parameters that can be set with 'insmod' */
130 
131 /* ADHOC=0, Infrastructure=1 */
132 static int net_type = ADHOC;
133 
134 /* Hop dwell time in Kus (1024 us units defined by 802.11) */
135 static int hop_dwell = 128;
136 
137 /* Beacon period in Kus */
138 static int beacon_period = 256;
139 
140 /* power save mode (0 = off, 1 = save power) */
141 static int psm;
142 
143 /* String for network's Extended Service Set ID. 32 Characters max */
144 static char *essid;
145 
146 /* Default to encapsulation unless translation requested */
147 static int translate = 1;
148 
149 static int country = USA;
150 
151 static int sniffer;
152 
153 static int bc;
154 
155 /* 48 bit physical card address if overriding card's real physical
156  * address is required. Since IEEE 802.11 addresses are 48 bits
157  * like ethernet, an int can't be used, so a string is used. To
158  * allow use of addresses starting with a decimal digit, the first
159  * character must be a letter and will be ignored. This letter is
160  * followed by up to 12 hex digits which are the address. If less
161  * than 12 digits are used, the address will be left filled with 0's.
162  * Note that bit 0 of the first byte is the broadcast bit, and evil
163  * things will happen if it is not 0 in a card address.
164  */
165 static char *phy_addr = NULL;
166 
167 static unsigned int ray_mem_speed = 500;
168 
169 /* WARNING: THIS DRIVER IS NOT CAPABLE OF HANDLING MULTIPLE DEVICES! */
170 static struct pcmcia_device *this_device = NULL;
171 
172 MODULE_AUTHOR("Corey Thomas <[email protected]>");
173 MODULE_DESCRIPTION("Raylink/WebGear wireless LAN driver");
174 MODULE_LICENSE("GPL");
175 
176 module_param(net_type, int, 0);
177 module_param(hop_dwell, int, 0);
178 module_param(beacon_period, int, 0);
179 module_param(psm, int, 0);
180 module_param(essid, charp, 0);
181 module_param(translate, int, 0);
182 module_param(country, int, 0);
183 module_param(sniffer, int, 0);
184 module_param(bc, int, 0);
185 module_param(phy_addr, charp, 0);
186 module_param(ray_mem_speed, int, 0);
187 
188 static const UCHAR b5_default_startup_parms[] = {
189  0, 0, /* Adhoc station */
190  'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
191  0, 0, 0, 0, 0, 0, 0, 0,
192  0, 0, 0, 0, 0, 0, 0, 0,
193  0, 0, 0, 0, 0, 0, 0, 0,
194  1, 0, /* Active scan, CA Mode */
195  0, 0, 0, 0, 0, 0, /* No default MAC addr */
196  0x7f, 0xff, /* Frag threshold */
197  0x00, 0x80, /* Hop time 128 Kus */
198  0x01, 0x00, /* Beacon period 256 Kus */
199  0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
200  0x1d, 0x82, 0x4e, /* SIFS, DIFS, PIFS */
201  0x7f, 0xff, /* RTS threshold */
202  0x04, 0xe2, 0x38, 0xA4, /* scan_dwell, max_scan_dwell */
203  0x05, /* assoc resp timeout thresh */
204  0x08, 0x02, 0x08, /* adhoc, infra, super cycle max */
205  0, /* Promiscuous mode */
206  0x0c, 0x0bd, /* Unique word */
207  0x32, /* Slot time */
208  0xff, 0xff, /* roam-low snr, low snr count */
209  0x05, 0xff, /* Infra, adhoc missed bcn thresh */
210  0x01, 0x0b, 0x4f, /* USA, hop pattern, hop pat length */
211 /* b4 - b5 differences start here */
212  0x00, 0x3f, /* CW max */
213  0x00, 0x0f, /* CW min */
214  0x04, 0x08, /* Noise gain, limit offset */
215  0x28, 0x28, /* det rssi, med busy offsets */
216  7, /* det sync thresh */
217  0, 2, 2, /* test mode, min, max */
218  0, /* allow broadcast SSID probe resp */
219  0, 0, /* privacy must start, can join */
220  2, 0, 0, 0, 0, 0, 0, 0 /* basic rate set */
221 };
222 
223 static const UCHAR b4_default_startup_parms[] = {
224  0, 0, /* Adhoc station */
225  'L', 'I', 'N', 'U', 'X', 0, 0, 0, /* 32 char ESSID */
226  0, 0, 0, 0, 0, 0, 0, 0,
227  0, 0, 0, 0, 0, 0, 0, 0,
228  0, 0, 0, 0, 0, 0, 0, 0,
229  1, 0, /* Active scan, CA Mode */
230  0, 0, 0, 0, 0, 0, /* No default MAC addr */
231  0x7f, 0xff, /* Frag threshold */
232  0x02, 0x00, /* Hop time */
233  0x00, 0x01, /* Beacon period */
234  0x01, 0x07, 0xa3, /* DTIM, retries, ack timeout */
235  0x1d, 0x82, 0xce, /* SIFS, DIFS, PIFS */
236  0x7f, 0xff, /* RTS threshold */
237  0xfb, 0x1e, 0xc7, 0x5c, /* scan_dwell, max_scan_dwell */
238  0x05, /* assoc resp timeout thresh */
239  0x04, 0x02, 0x4, /* adhoc, infra, super cycle max */
240  0, /* Promiscuous mode */
241  0x0c, 0x0bd, /* Unique word */
242  0x4e, /* Slot time (TBD seems wrong) */
243  0xff, 0xff, /* roam-low snr, low snr count */
244  0x05, 0xff, /* Infra, adhoc missed bcn thresh */
245  0x01, 0x0b, 0x4e, /* USA, hop pattern, hop pat length */
246 /* b4 - b5 differences start here */
247  0x3f, 0x0f, /* CW max, min */
248  0x04, 0x08, /* Noise gain, limit offset */
249  0x28, 0x28, /* det rssi, med busy offsets */
250  7, /* det sync thresh */
251  0, 2, 2 /* test mode, min, max */
252 };
253 
254 /*===========================================================================*/
255 static const u8 eth2_llc[] = { 0xaa, 0xaa, 3, 0, 0, 0 };
256 
257 static const char hop_pattern_length[] = { 1,
258  USA_HOP_MOD, EUROPE_HOP_MOD,
259  JAPAN_HOP_MOD, KOREA_HOP_MOD,
260  SPAIN_HOP_MOD, FRANCE_HOP_MOD,
261  ISRAEL_HOP_MOD, AUSTRALIA_HOP_MOD,
262  JAPAN_TEST_HOP_MOD
263 };
264 
265 static const char rcsid[] =
266  "Raylink/WebGear wireless LAN - Corey <Thomas [email protected]>";
267 
268 static const struct net_device_ops ray_netdev_ops = {
269  .ndo_init = ray_dev_init,
270  .ndo_open = ray_open,
271  .ndo_stop = ray_dev_close,
272  .ndo_start_xmit = ray_dev_start_xmit,
273  .ndo_set_config = ray_dev_config,
274  .ndo_get_stats = ray_get_stats,
275  .ndo_set_rx_mode = set_multicast_list,
276  .ndo_change_mtu = eth_change_mtu,
277  .ndo_set_mac_address = eth_mac_addr,
278  .ndo_validate_addr = eth_validate_addr,
279 };
280 
281 static int ray_probe(struct pcmcia_device *p_dev)
282 {
283  ray_dev_t *local;
284  struct net_device *dev;
285 
286  dev_dbg(&p_dev->dev, "ray_attach()\n");
287 
288  /* Allocate space for private device-specific data */
289  dev = alloc_etherdev(sizeof(ray_dev_t));
290  if (!dev)
291  goto fail_alloc_dev;
292 
293  local = netdev_priv(dev);
294  local->finder = p_dev;
295 
296  /* The io structure describes IO port mapping. None used here */
297  p_dev->resource[0]->end = 0;
298  p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
299 
300  /* General socket configuration */
301  p_dev->config_flags |= CONF_ENABLE_IRQ;
302  p_dev->config_index = 1;
303 
304  p_dev->priv = dev;
305 
306  local->finder = p_dev;
307  local->card_status = CARD_INSERTED;
308  local->authentication_state = UNAUTHENTICATED;
309  local->num_multi = 0;
310  dev_dbg(&p_dev->dev, "ray_attach p_dev = %p, dev = %p, local = %p, intr = %p\n",
311  p_dev, dev, local, &ray_interrupt);
312 
313  /* Raylink entries in the device structure */
314  dev->netdev_ops = &ray_netdev_ops;
315  dev->wireless_handlers = &ray_handler_def;
316 #ifdef WIRELESS_SPY
317  local->wireless_data.spy_data = &local->spy_data;
318  dev->wireless_data = &local->wireless_data;
319 #endif /* WIRELESS_SPY */
320 
321 
322  dev_dbg(&p_dev->dev, "ray_cs ray_attach calling ether_setup.)\n");
323  netif_stop_queue(dev);
324 
325  init_timer(&local->timer);
326 
327  this_device = p_dev;
328  return ray_config(p_dev);
329 
330 fail_alloc_dev:
331  return -ENOMEM;
332 } /* ray_attach */
333 
334 static void ray_detach(struct pcmcia_device *link)
335 {
336  struct net_device *dev;
337  ray_dev_t *local;
338 
339  dev_dbg(&link->dev, "ray_detach\n");
340 
341  this_device = NULL;
342  dev = link->priv;
343 
344  ray_release(link);
345 
346  local = netdev_priv(dev);
347  del_timer(&local->timer);
348 
349  if (link->priv) {
350  unregister_netdev(dev);
351  free_netdev(dev);
352  }
353  dev_dbg(&link->dev, "ray_cs ray_detach ending\n");
354 } /* ray_detach */
355 
356 #define MAX_TUPLE_SIZE 128
357 static int ray_config(struct pcmcia_device *link)
358 {
359  int ret = 0;
360  int i;
361  struct net_device *dev = (struct net_device *)link->priv;
362  ray_dev_t *local = netdev_priv(dev);
363 
364  dev_dbg(&link->dev, "ray_config\n");
365 
366  /* Determine card type and firmware version */
367  printk(KERN_INFO "ray_cs Detected: %s%s%s%s\n",
368  link->prod_id[0] ? link->prod_id[0] : " ",
369  link->prod_id[1] ? link->prod_id[1] : " ",
370  link->prod_id[2] ? link->prod_id[2] : " ",
371  link->prod_id[3] ? link->prod_id[3] : " ");
372 
373  /* Now allocate an interrupt line. Note that this does not
374  actually assign a handler to the interrupt.
375  */
376  ret = pcmcia_request_irq(link, ray_interrupt);
377  if (ret)
378  goto failed;
379  dev->irq = link->irq;
380 
381  ret = pcmcia_enable_device(link);
382  if (ret)
383  goto failed;
384 
385 /*** Set up 32k window for shared memory (transmit and control) ************/
386  link->resource[2]->flags |= WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
387  link->resource[2]->start = 0;
388  link->resource[2]->end = 0x8000;
389  ret = pcmcia_request_window(link, link->resource[2], ray_mem_speed);
390  if (ret)
391  goto failed;
392  ret = pcmcia_map_mem_page(link, link->resource[2], 0);
393  if (ret)
394  goto failed;
395  local->sram = ioremap(link->resource[2]->start,
396  resource_size(link->resource[2]));
397 
398 /*** Set up 16k window for shared memory (receive buffer) ***************/
399  link->resource[3]->flags |=
400  WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
401  link->resource[3]->start = 0;
402  link->resource[3]->end = 0x4000;
403  ret = pcmcia_request_window(link, link->resource[3], ray_mem_speed);
404  if (ret)
405  goto failed;
406  ret = pcmcia_map_mem_page(link, link->resource[3], 0x8000);
407  if (ret)
408  goto failed;
409  local->rmem = ioremap(link->resource[3]->start,
410  resource_size(link->resource[3]));
411 
412 /*** Set up window for attribute memory ***********************************/
413  link->resource[4]->flags |=
414  WIN_DATA_WIDTH_8 | WIN_MEMORY_TYPE_AM | WIN_ENABLE | WIN_USE_WAIT;
415  link->resource[4]->start = 0;
416  link->resource[4]->end = 0x1000;
417  ret = pcmcia_request_window(link, link->resource[4], ray_mem_speed);
418  if (ret)
419  goto failed;
420  ret = pcmcia_map_mem_page(link, link->resource[4], 0);
421  if (ret)
422  goto failed;
423  local->amem = ioremap(link->resource[4]->start,
424  resource_size(link->resource[4]));
425 
426  dev_dbg(&link->dev, "ray_config sram=%p\n", local->sram);
427  dev_dbg(&link->dev, "ray_config rmem=%p\n", local->rmem);
428  dev_dbg(&link->dev, "ray_config amem=%p\n", local->amem);
429  if (ray_init(dev) < 0) {
430  ray_release(link);
431  return -ENODEV;
432  }
433 
434  SET_NETDEV_DEV(dev, &link->dev);
435  i = register_netdev(dev);
436  if (i != 0) {
437  printk("ray_config register_netdev() failed\n");
438  ray_release(link);
439  return i;
440  }
441 
442  printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n",
443  dev->name, dev->irq, dev->dev_addr);
444 
445  return 0;
446 
447 failed:
448  ray_release(link);
449  return -ENODEV;
450 } /* ray_config */
451 
452 static inline struct ccs __iomem *ccs_base(ray_dev_t *dev)
453 {
454  return dev->sram + CCS_BASE;
455 }
456 
457 static inline struct rcs __iomem *rcs_base(ray_dev_t *dev)
458 {
459  /*
460  * This looks nonsensical, since there is a separate
461  * RCS_BASE. But the difference between a "struct rcs"
462  * and a "struct ccs" ends up being in the _index_ off
463  * the base, so the base pointer is the same for both
464  * ccs/rcs.
465  */
466  return dev->sram + CCS_BASE;
467 }
468 
469 /*===========================================================================*/
470 static int ray_init(struct net_device *dev)
471 {
472  int i;
473  UCHAR *p;
474  struct ccs __iomem *pccs;
475  ray_dev_t *local = netdev_priv(dev);
476  struct pcmcia_device *link = local->finder;
477  dev_dbg(&link->dev, "ray_init(0x%p)\n", dev);
478  if (!(pcmcia_dev_present(link))) {
479  dev_dbg(&link->dev, "ray_init - device not present\n");
480  return -1;
481  }
482 
483  local->net_type = net_type;
484  local->sta_type = TYPE_STA;
485 
486  /* Copy the startup results to local memory */
487  memcpy_fromio(&local->startup_res, local->sram + ECF_TO_HOST_BASE,
488  sizeof(struct startup_res_6));
489 
490  /* Check Power up test status and get mac address from card */
491  if (local->startup_res.startup_word != 0x80) {
492  printk(KERN_INFO "ray_init ERROR card status = %2x\n",
493  local->startup_res.startup_word);
494  local->card_status = CARD_INIT_ERROR;
495  return -1;
496  }
497 
498  local->fw_ver = local->startup_res.firmware_version[0];
499  local->fw_bld = local->startup_res.firmware_version[1];
500  local->fw_var = local->startup_res.firmware_version[2];
501  dev_dbg(&link->dev, "ray_init firmware version %d.%d\n", local->fw_ver,
502  local->fw_bld);
503 
504  local->tib_length = 0x20;
505  if ((local->fw_ver == 5) && (local->fw_bld >= 30))
506  local->tib_length = local->startup_res.tib_length;
507  dev_dbg(&link->dev, "ray_init tib_length = 0x%02x\n", local->tib_length);
508  /* Initialize CCS's to buffer free state */
509  pccs = ccs_base(local);
510  for (i = 0; i < NUMBER_OF_CCS; i++) {
511  writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
512  }
513  init_startup_params(local);
514 
515  /* copy mac address to startup parameters */
516  if (parse_addr(phy_addr, local->sparm.b4.a_mac_addr)) {
517  p = local->sparm.b4.a_mac_addr;
518  } else {
519  memcpy(&local->sparm.b4.a_mac_addr,
520  &local->startup_res.station_addr, ADDRLEN);
521  p = local->sparm.b4.a_mac_addr;
522  }
523 
524  clear_interrupt(local); /* Clear any interrupt from the card */
525  local->card_status = CARD_AWAITING_PARAM;
526  dev_dbg(&link->dev, "ray_init ending\n");
527  return 0;
528 } /* ray_init */
529 
530 /*===========================================================================*/
531 /* Download startup parameters to the card and command it to read them */
532 static int dl_startup_params(struct net_device *dev)
533 {
534  int ccsindex;
535  ray_dev_t *local = netdev_priv(dev);
536  struct ccs __iomem *pccs;
537  struct pcmcia_device *link = local->finder;
538 
539  dev_dbg(&link->dev, "dl_startup_params entered\n");
540  if (!(pcmcia_dev_present(link))) {
541  dev_dbg(&link->dev, "ray_cs dl_startup_params - device not present\n");
542  return -1;
543  }
544 
545  /* Copy parameters to host to ECF area */
546  if (local->fw_ver == 0x55)
547  memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b4,
548  sizeof(struct b4_startup_params));
549  else
550  memcpy_toio(local->sram + HOST_TO_ECF_BASE, &local->sparm.b5,
551  sizeof(struct b5_startup_params));
552 
553  /* Fill in the CCS fields for the ECF */
554  if ((ccsindex = get_free_ccs(local)) < 0)
555  return -1;
556  local->dl_param_ccs = ccsindex;
557  pccs = ccs_base(local) + ccsindex;
558  writeb(CCS_DOWNLOAD_STARTUP_PARAMS, &pccs->cmd);
559  dev_dbg(&link->dev, "dl_startup_params start ccsindex = %d\n",
560  local->dl_param_ccs);
561  /* Interrupt the firmware to process the command */
562  if (interrupt_ecf(local, ccsindex)) {
563  printk(KERN_INFO "ray dl_startup_params failed - "
564  "ECF not ready for intr\n");
565  local->card_status = CARD_DL_PARAM_ERROR;
566  writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
567  return -2;
568  }
569  local->card_status = CARD_DL_PARAM;
570  /* Start kernel timer to wait for dl startup to complete. */
571  local->timer.expires = jiffies + HZ / 2;
572  local->timer.data = (long)local;
573  local->timer.function = verify_dl_startup;
574  add_timer(&local->timer);
575  dev_dbg(&link->dev,
576  "ray_cs dl_startup_params started timer for verify_dl_startup\n");
577  return 0;
578 } /* dl_startup_params */
579 
580 /*===========================================================================*/
581 static void init_startup_params(ray_dev_t *local)
582 {
583  int i;
584 
585  if (country > JAPAN_TEST)
586  country = USA;
587  else if (country < USA)
588  country = USA;
589  /* structure for hop time and beacon period is defined here using
590  * New 802.11D6.1 format. Card firmware is still using old format
591  * until version 6.
592  * Before After
593  * a_hop_time ms byte a_hop_time ms byte
594  * a_hop_time 2s byte a_hop_time ls byte
595  * a_hop_time ls byte a_beacon_period ms byte
596  * a_beacon_period a_beacon_period ls byte
597  *
598  * a_hop_time = uS a_hop_time = KuS
599  * a_beacon_period = hops a_beacon_period = KuS
600  *//* 64ms = 010000 */
601  if (local->fw_ver == 0x55) {
602  memcpy((UCHAR *) &local->sparm.b4, b4_default_startup_parms,
603  sizeof(struct b4_startup_params));
604  /* Translate sane kus input values to old build 4/5 format */
605  /* i = hop time in uS truncated to 3 bytes */
606  i = (hop_dwell * 1024) & 0xffffff;
607  local->sparm.b4.a_hop_time[0] = (i >> 16) & 0xff;
608  local->sparm.b4.a_hop_time[1] = (i >> 8) & 0xff;
609  local->sparm.b4.a_beacon_period[0] = 0;
610  local->sparm.b4.a_beacon_period[1] =
611  ((beacon_period / hop_dwell) - 1) & 0xff;
612  local->sparm.b4.a_curr_country_code = country;
613  local->sparm.b4.a_hop_pattern_length =
614  hop_pattern_length[(int)country] - 1;
615  if (bc) {
616  local->sparm.b4.a_ack_timeout = 0x50;
617  local->sparm.b4.a_sifs = 0x3f;
618  }
619  } else { /* Version 5 uses real kus values */
620  memcpy((UCHAR *) &local->sparm.b5, b5_default_startup_parms,
621  sizeof(struct b5_startup_params));
622 
623  local->sparm.b5.a_hop_time[0] = (hop_dwell >> 8) & 0xff;
624  local->sparm.b5.a_hop_time[1] = hop_dwell & 0xff;
625  local->sparm.b5.a_beacon_period[0] =
626  (beacon_period >> 8) & 0xff;
627  local->sparm.b5.a_beacon_period[1] = beacon_period & 0xff;
628  if (psm)
629  local->sparm.b5.a_power_mgt_state = 1;
630  local->sparm.b5.a_curr_country_code = country;
631  local->sparm.b5.a_hop_pattern_length =
632  hop_pattern_length[(int)country];
633  }
634 
635  local->sparm.b4.a_network_type = net_type & 0x01;
636  local->sparm.b4.a_acting_as_ap_status = TYPE_STA;
637 
638  if (essid != NULL)
639  strncpy(local->sparm.b4.a_current_ess_id, essid, ESSID_SIZE);
640 } /* init_startup_params */
641 
642 /*===========================================================================*/
643 static void verify_dl_startup(u_long data)
644 {
645  ray_dev_t *local = (ray_dev_t *) data;
646  struct ccs __iomem *pccs = ccs_base(local) + local->dl_param_ccs;
647  UCHAR status;
648  struct pcmcia_device *link = local->finder;
649 
650  if (!(pcmcia_dev_present(link))) {
651  dev_dbg(&link->dev, "ray_cs verify_dl_startup - device not present\n");
652  return;
653  }
654 #if 0
655  {
656  int i;
657  printk(KERN_DEBUG
658  "verify_dl_startup parameters sent via ccs %d:\n",
659  local->dl_param_ccs);
660  for (i = 0; i < sizeof(struct b5_startup_params); i++) {
661  printk(" %2x",
662  (unsigned int)readb(local->sram +
663  HOST_TO_ECF_BASE + i));
664  }
665  printk("\n");
666  }
667 #endif
668 
669  status = readb(&pccs->buffer_status);
670  if (status != CCS_BUFFER_FREE) {
671  printk(KERN_INFO
672  "Download startup params failed. Status = %d\n",
673  status);
674  local->card_status = CARD_DL_PARAM_ERROR;
675  return;
676  }
677  if (local->sparm.b4.a_network_type == ADHOC)
678  start_net((u_long) local);
679  else
680  join_net((u_long) local);
681 } /* end verify_dl_startup */
682 
683 /*===========================================================================*/
684 /* Command card to start a network */
685 static void start_net(u_long data)
686 {
687  ray_dev_t *local = (ray_dev_t *) data;
688  struct ccs __iomem *pccs;
689  int ccsindex;
690  struct pcmcia_device *link = local->finder;
691  if (!(pcmcia_dev_present(link))) {
692  dev_dbg(&link->dev, "ray_cs start_net - device not present\n");
693  return;
694  }
695  /* Fill in the CCS fields for the ECF */
696  if ((ccsindex = get_free_ccs(local)) < 0)
697  return;
698  pccs = ccs_base(local) + ccsindex;
699  writeb(CCS_START_NETWORK, &pccs->cmd);
700  writeb(0, &pccs->var.start_network.update_param);
701  /* Interrupt the firmware to process the command */
702  if (interrupt_ecf(local, ccsindex)) {
703  dev_dbg(&link->dev, "ray start net failed - card not ready for intr\n");
704  writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
705  return;
706  }
707  local->card_status = CARD_DOING_ACQ;
708 } /* end start_net */
709 
710 /*===========================================================================*/
711 /* Command card to join a network */
712 static void join_net(u_long data)
713 {
714  ray_dev_t *local = (ray_dev_t *) data;
715 
716  struct ccs __iomem *pccs;
717  int ccsindex;
718  struct pcmcia_device *link = local->finder;
719 
720  if (!(pcmcia_dev_present(link))) {
721  dev_dbg(&link->dev, "ray_cs join_net - device not present\n");
722  return;
723  }
724  /* Fill in the CCS fields for the ECF */
725  if ((ccsindex = get_free_ccs(local)) < 0)
726  return;
727  pccs = ccs_base(local) + ccsindex;
728  writeb(CCS_JOIN_NETWORK, &pccs->cmd);
729  writeb(0, &pccs->var.join_network.update_param);
730  writeb(0, &pccs->var.join_network.net_initiated);
731  /* Interrupt the firmware to process the command */
732  if (interrupt_ecf(local, ccsindex)) {
733  dev_dbg(&link->dev, "ray join net failed - card not ready for intr\n");
734  writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
735  return;
736  }
737  local->card_status = CARD_DOING_ACQ;
738 }
739 
740 
741 static void ray_release(struct pcmcia_device *link)
742 {
743  struct net_device *dev = link->priv;
744  ray_dev_t *local = netdev_priv(dev);
745 
746  dev_dbg(&link->dev, "ray_release\n");
747 
748  del_timer(&local->timer);
749 
750  iounmap(local->sram);
751  iounmap(local->rmem);
752  iounmap(local->amem);
753  pcmcia_disable_device(link);
754 
755  dev_dbg(&link->dev, "ray_release ending\n");
756 }
757 
758 static int ray_suspend(struct pcmcia_device *link)
759 {
760  struct net_device *dev = link->priv;
761 
762  if (link->open)
763  netif_device_detach(dev);
764 
765  return 0;
766 }
767 
768 static int ray_resume(struct pcmcia_device *link)
769 {
770  struct net_device *dev = link->priv;
771 
772  if (link->open) {
773  ray_reset(dev);
774  netif_device_attach(dev);
775  }
776 
777  return 0;
778 }
779 
780 /*===========================================================================*/
781 static int ray_dev_init(struct net_device *dev)
782 {
783 #ifdef RAY_IMMEDIATE_INIT
784  int i;
785 #endif /* RAY_IMMEDIATE_INIT */
786  ray_dev_t *local = netdev_priv(dev);
787  struct pcmcia_device *link = local->finder;
788 
789  dev_dbg(&link->dev, "ray_dev_init(dev=%p)\n", dev);
790  if (!(pcmcia_dev_present(link))) {
791  dev_dbg(&link->dev, "ray_dev_init - device not present\n");
792  return -1;
793  }
794 #ifdef RAY_IMMEDIATE_INIT
795  /* Download startup parameters */
796  if ((i = dl_startup_params(dev)) < 0) {
797  printk(KERN_INFO "ray_dev_init dl_startup_params failed - "
798  "returns 0x%x\n", i);
799  return -1;
800  }
801 #else /* RAY_IMMEDIATE_INIT */
802  /* Postpone the card init so that we can still configure the card,
803  * for example using the Wireless Extensions. The init will happen
804  * in ray_open() - Jean II */
805  dev_dbg(&link->dev,
806  "ray_dev_init: postponing card init to ray_open() ; Status = %d\n",
807  local->card_status);
808 #endif /* RAY_IMMEDIATE_INIT */
809 
810  /* copy mac and broadcast addresses to linux device */
811  memcpy(dev->dev_addr, &local->sparm.b4.a_mac_addr, ADDRLEN);
812  memset(dev->broadcast, 0xff, ETH_ALEN);
813 
814  dev_dbg(&link->dev, "ray_dev_init ending\n");
815  return 0;
816 }
817 
818 /*===========================================================================*/
819 static int ray_dev_config(struct net_device *dev, struct ifmap *map)
820 {
821  ray_dev_t *local = netdev_priv(dev);
822  struct pcmcia_device *link = local->finder;
823  /* Dummy routine to satisfy device structure */
824  dev_dbg(&link->dev, "ray_dev_config(dev=%p,ifmap=%p)\n", dev, map);
825  if (!(pcmcia_dev_present(link))) {
826  dev_dbg(&link->dev, "ray_dev_config - device not present\n");
827  return -1;
828  }
829 
830  return 0;
831 }
832 
833 /*===========================================================================*/
834 static netdev_tx_t ray_dev_start_xmit(struct sk_buff *skb,
835  struct net_device *dev)
836 {
837  ray_dev_t *local = netdev_priv(dev);
838  struct pcmcia_device *link = local->finder;
839  short length = skb->len;
840 
841  if (!pcmcia_dev_present(link)) {
842  dev_dbg(&link->dev, "ray_dev_start_xmit - device not present\n");
843  dev_kfree_skb(skb);
844  return NETDEV_TX_OK;
845  }
846 
847  dev_dbg(&link->dev, "ray_dev_start_xmit(skb=%p, dev=%p)\n", skb, dev);
848  if (local->authentication_state == NEED_TO_AUTH) {
849  dev_dbg(&link->dev, "ray_cs Sending authentication request.\n");
850  if (!build_auth_frame(local, local->auth_id, OPEN_AUTH_REQUEST)) {
851  local->authentication_state = AUTHENTICATED;
852  netif_stop_queue(dev);
853  return NETDEV_TX_BUSY;
854  }
855  }
856 
857  if (length < ETH_ZLEN) {
858  if (skb_padto(skb, ETH_ZLEN))
859  return NETDEV_TX_OK;
860  length = ETH_ZLEN;
861  }
862  switch (ray_hw_xmit(skb->data, length, dev, DATA_TYPE)) {
863  case XMIT_NO_CCS:
864  case XMIT_NEED_AUTH:
865  netif_stop_queue(dev);
866  return NETDEV_TX_BUSY;
867  case XMIT_NO_INTR:
868  case XMIT_MSG_BAD:
869  case XMIT_OK:
870  default:
871  dev_kfree_skb(skb);
872  }
873 
874  return NETDEV_TX_OK;
875 } /* ray_dev_start_xmit */
876 
877 /*===========================================================================*/
878 static int ray_hw_xmit(unsigned char *data, int len, struct net_device *dev,
879  UCHAR msg_type)
880 {
881  ray_dev_t *local = netdev_priv(dev);
882  struct ccs __iomem *pccs;
883  int ccsindex;
884  int offset;
885  struct tx_msg __iomem *ptx; /* Address of xmit buffer in PC space */
886  short int addr; /* Address of xmit buffer in card space */
887 
888  pr_debug("ray_hw_xmit(data=%p, len=%d, dev=%p)\n", data, len, dev);
889  if (len + TX_HEADER_LENGTH > TX_BUF_SIZE) {
890  printk(KERN_INFO "ray_hw_xmit packet too large: %d bytes\n",
891  len);
892  return XMIT_MSG_BAD;
893  }
894  switch (ccsindex = get_free_tx_ccs(local)) {
895  case ECCSBUSY:
896  pr_debug("ray_hw_xmit tx_ccs table busy\n");
897  case ECCSFULL:
898  pr_debug("ray_hw_xmit No free tx ccs\n");
899  case ECARDGONE:
900  netif_stop_queue(dev);
901  return XMIT_NO_CCS;
902  default:
903  break;
904  }
905  addr = TX_BUF_BASE + (ccsindex << 11);
906 
907  if (msg_type == DATA_TYPE) {
908  local->stats.tx_bytes += len;
909  local->stats.tx_packets++;
910  }
911 
912  ptx = local->sram + addr;
913 
914  ray_build_header(local, ptx, msg_type, data);
915  if (translate) {
916  offset = translate_frame(local, ptx, data, len);
917  } else { /* Encapsulate frame */
918  /* TBD TIB length will move address of ptx->var */
919  memcpy_toio(&ptx->var, data, len);
920  offset = 0;
921  }
922 
923  /* fill in the CCS */
924  pccs = ccs_base(local) + ccsindex;
925  len += TX_HEADER_LENGTH + offset;
926  writeb(CCS_TX_REQUEST, &pccs->cmd);
927  writeb(addr >> 8, &pccs->var.tx_request.tx_data_ptr[0]);
928  writeb(local->tib_length, &pccs->var.tx_request.tx_data_ptr[1]);
929  writeb(len >> 8, &pccs->var.tx_request.tx_data_length[0]);
930  writeb(len & 0xff, &pccs->var.tx_request.tx_data_length[1]);
931 /* TBD still need psm_cam? */
932  writeb(PSM_CAM, &pccs->var.tx_request.pow_sav_mode);
933  writeb(local->net_default_tx_rate, &pccs->var.tx_request.tx_rate);
934  writeb(0, &pccs->var.tx_request.antenna);
935  pr_debug("ray_hw_xmit default_tx_rate = 0x%x\n",
936  local->net_default_tx_rate);
937 
938  /* Interrupt the firmware to process the command */
939  if (interrupt_ecf(local, ccsindex)) {
940  pr_debug("ray_hw_xmit failed - ECF not ready for intr\n");
941 /* TBD very inefficient to copy packet to buffer, and then not
942  send it, but the alternative is to queue the messages and that
943  won't be done for a while. Maybe set tbusy until a CCS is free?
944 */
945  writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
946  return XMIT_NO_INTR;
947  }
948  return XMIT_OK;
949 } /* end ray_hw_xmit */
950 
951 /*===========================================================================*/
952 static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx,
953  unsigned char *data, int len)
954 {
955  __be16 proto = ((struct ethhdr *)data)->h_proto;
956  if (ntohs(proto) >= 1536) { /* DIX II ethernet frame */
957  pr_debug("ray_cs translate_frame DIX II\n");
958  /* Copy LLC header to card buffer */
959  memcpy_toio(&ptx->var, eth2_llc, sizeof(eth2_llc));
960  memcpy_toio(((void __iomem *)&ptx->var) + sizeof(eth2_llc),
961  (UCHAR *) &proto, 2);
962  if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) {
963  /* This is the selective translation table, only 2 entries */
964  writeb(0xf8,
965  &((struct snaphdr_t __iomem *)ptx->var)->org[3]);
966  }
967  /* Copy body of ethernet packet without ethernet header */
968  memcpy_toio((void __iomem *)&ptx->var +
969  sizeof(struct snaphdr_t), data + ETH_HLEN,
970  len - ETH_HLEN);
971  return (int)sizeof(struct snaphdr_t) - ETH_HLEN;
972  } else { /* already 802 type, and proto is length */
973  pr_debug("ray_cs translate_frame 802\n");
974  if (proto == htons(0xffff)) { /* evil netware IPX 802.3 without LLC */
975  pr_debug("ray_cs translate_frame evil IPX\n");
976  memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
977  return 0 - ETH_HLEN;
978  }
979  memcpy_toio(&ptx->var, data + ETH_HLEN, len - ETH_HLEN);
980  return 0 - ETH_HLEN;
981  }
982  /* TBD do other frame types */
983 } /* end translate_frame */
984 
985 /*===========================================================================*/
986 static void ray_build_header(ray_dev_t *local, struct tx_msg __iomem *ptx,
987  UCHAR msg_type, unsigned char *data)
988 {
989  writeb(PROTOCOL_VER | msg_type, &ptx->mac.frame_ctl_1);
990 /*** IEEE 802.11 Address field assignments *************
991  TODS FROMDS addr_1 addr_2 addr_3 addr_4
992 Adhoc 0 0 dest src (terminal) BSSID N/A
993 AP to Terminal 0 1 dest AP(BSSID) source N/A
994 Terminal to AP 1 0 AP(BSSID) src (terminal) dest N/A
995 AP to AP 1 1 dest AP src AP dest source
996 *******************************************************/
997  if (local->net_type == ADHOC) {
998  writeb(0, &ptx->mac.frame_ctl_2);
999  memcpy_toio(ptx->mac.addr_1, ((struct ethhdr *)data)->h_dest,
1000  2 * ADDRLEN);
1001  memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
1002  } else { /* infrastructure */
1003 
1004  if (local->sparm.b4.a_acting_as_ap_status) {
1005  writeb(FC2_FROM_DS, &ptx->mac.frame_ctl_2);
1006  memcpy_toio(ptx->mac.addr_1,
1007  ((struct ethhdr *)data)->h_dest, ADDRLEN);
1008  memcpy_toio(ptx->mac.addr_2, local->bss_id, 6);
1009  memcpy_toio(ptx->mac.addr_3,
1010  ((struct ethhdr *)data)->h_source, ADDRLEN);
1011  } else { /* Terminal */
1012 
1013  writeb(FC2_TO_DS, &ptx->mac.frame_ctl_2);
1014  memcpy_toio(ptx->mac.addr_1, local->bss_id, ADDRLEN);
1015  memcpy_toio(ptx->mac.addr_2,
1016  ((struct ethhdr *)data)->h_source, ADDRLEN);
1017  memcpy_toio(ptx->mac.addr_3,
1018  ((struct ethhdr *)data)->h_dest, ADDRLEN);
1019  }
1020  }
1021 } /* end encapsulate_frame */
1022 
1023 /*====================================================================*/
1024 
1025 /*------------------------------------------------------------------*/
1026 /*
1027  * Wireless Handler : get protocol name
1028  */
1029 static int ray_get_name(struct net_device *dev, struct iw_request_info *info,
1030  union iwreq_data *wrqu, char *extra)
1031 {
1032  strcpy(wrqu->name, "IEEE 802.11-FH");
1033  return 0;
1034 }
1035 
1036 /*------------------------------------------------------------------*/
1037 /*
1038  * Wireless Handler : set frequency
1039  */
1040 static int ray_set_freq(struct net_device *dev, struct iw_request_info *info,
1041  union iwreq_data *wrqu, char *extra)
1042 {
1043  ray_dev_t *local = netdev_priv(dev);
1044  int err = -EINPROGRESS; /* Call commit handler */
1045 
1046  /* Reject if card is already initialised */
1047  if (local->card_status != CARD_AWAITING_PARAM)
1048  return -EBUSY;
1049 
1050  /* Setting by channel number */
1051  if ((wrqu->freq.m > USA_HOP_MOD) || (wrqu->freq.e > 0))
1052  err = -EOPNOTSUPP;
1053  else
1054  local->sparm.b5.a_hop_pattern = wrqu->freq.m;
1055 
1056  return err;
1057 }
1058 
1059 /*------------------------------------------------------------------*/
1060 /*
1061  * Wireless Handler : get frequency
1062  */
1063 static int ray_get_freq(struct net_device *dev, struct iw_request_info *info,
1064  union iwreq_data *wrqu, char *extra)
1065 {
1066  ray_dev_t *local = netdev_priv(dev);
1067 
1068  wrqu->freq.m = local->sparm.b5.a_hop_pattern;
1069  wrqu->freq.e = 0;
1070  return 0;
1071 }
1072 
1073 /*------------------------------------------------------------------*/
1074 /*
1075  * Wireless Handler : set ESSID
1076  */
1077 static int ray_set_essid(struct net_device *dev, struct iw_request_info *info,
1078  union iwreq_data *wrqu, char *extra)
1079 {
1080  ray_dev_t *local = netdev_priv(dev);
1081 
1082  /* Reject if card is already initialised */
1083  if (local->card_status != CARD_AWAITING_PARAM)
1084  return -EBUSY;
1085 
1086  /* Check if we asked for `any' */
1087  if (wrqu->essid.flags == 0)
1088  /* Corey : can you do that ? */
1089  return -EOPNOTSUPP;
1090 
1091  /* Check the size of the string */
1092  if (wrqu->essid.length > IW_ESSID_MAX_SIZE)
1093  return -E2BIG;
1094 
1095  /* Set the ESSID in the card */
1096  memset(local->sparm.b5.a_current_ess_id, 0, IW_ESSID_MAX_SIZE);
1097  memcpy(local->sparm.b5.a_current_ess_id, extra, wrqu->essid.length);
1098 
1099  return -EINPROGRESS; /* Call commit handler */
1100 }
1101 
1102 /*------------------------------------------------------------------*/
1103 /*
1104  * Wireless Handler : get ESSID
1105  */
1106 static int ray_get_essid(struct net_device *dev, struct iw_request_info *info,
1107  union iwreq_data *wrqu, char *extra)
1108 {
1109  ray_dev_t *local = netdev_priv(dev);
1110 
1111  /* Get the essid that was set */
1112  memcpy(extra, local->sparm.b5.a_current_ess_id, IW_ESSID_MAX_SIZE);
1113 
1114  /* Push it out ! */
1115  wrqu->essid.length = strlen(extra);
1116  wrqu->essid.flags = 1; /* active */
1117 
1118  return 0;
1119 }
1120 
1121 /*------------------------------------------------------------------*/
1122 /*
1123  * Wireless Handler : get AP address
1124  */
1125 static int ray_get_wap(struct net_device *dev, struct iw_request_info *info,
1126  union iwreq_data *wrqu, char *extra)
1127 {
1128  ray_dev_t *local = netdev_priv(dev);
1129 
1130  memcpy(wrqu->ap_addr.sa_data, local->bss_id, ETH_ALEN);
1131  wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1132 
1133  return 0;
1134 }
1135 
1136 /*------------------------------------------------------------------*/
1137 /*
1138  * Wireless Handler : set Bit-Rate
1139  */
1140 static int ray_set_rate(struct net_device *dev, struct iw_request_info *info,
1141  union iwreq_data *wrqu, char *extra)
1142 {
1143  ray_dev_t *local = netdev_priv(dev);
1144 
1145  /* Reject if card is already initialised */
1146  if (local->card_status != CARD_AWAITING_PARAM)
1147  return -EBUSY;
1148 
1149  /* Check if rate is in range */
1150  if ((wrqu->bitrate.value != 1000000) && (wrqu->bitrate.value != 2000000))
1151  return -EINVAL;
1152 
1153  /* Hack for 1.5 Mb/s instead of 2 Mb/s */
1154  if ((local->fw_ver == 0x55) && /* Please check */
1155  (wrqu->bitrate.value == 2000000))
1156  local->net_default_tx_rate = 3;
1157  else
1158  local->net_default_tx_rate = wrqu->bitrate.value / 500000;
1159 
1160  return 0;
1161 }
1162 
1163 /*------------------------------------------------------------------*/
1164 /*
1165  * Wireless Handler : get Bit-Rate
1166  */
1167 static int ray_get_rate(struct net_device *dev, struct iw_request_info *info,
1168  union iwreq_data *wrqu, char *extra)
1169 {
1170  ray_dev_t *local = netdev_priv(dev);
1171 
1172  if (local->net_default_tx_rate == 3)
1173  wrqu->bitrate.value = 2000000; /* Hum... */
1174  else
1175  wrqu->bitrate.value = local->net_default_tx_rate * 500000;
1176  wrqu->bitrate.fixed = 0; /* We are in auto mode */
1177 
1178  return 0;
1179 }
1180 
1181 /*------------------------------------------------------------------*/
1182 /*
1183  * Wireless Handler : set RTS threshold
1184  */
1185 static int ray_set_rts(struct net_device *dev, struct iw_request_info *info,
1186  union iwreq_data *wrqu, char *extra)
1187 {
1188  ray_dev_t *local = netdev_priv(dev);
1189  int rthr = wrqu->rts.value;
1190 
1191  /* Reject if card is already initialised */
1192  if (local->card_status != CARD_AWAITING_PARAM)
1193  return -EBUSY;
1194 
1195  /* if(wrq->u.rts.fixed == 0) we should complain */
1196  if (wrqu->rts.disabled)
1197  rthr = 32767;
1198  else {
1199  if ((rthr < 0) || (rthr > 2347)) /* What's the max packet size ??? */
1200  return -EINVAL;
1201  }
1202  local->sparm.b5.a_rts_threshold[0] = (rthr >> 8) & 0xFF;
1203  local->sparm.b5.a_rts_threshold[1] = rthr & 0xFF;
1204 
1205  return -EINPROGRESS; /* Call commit handler */
1206 }
1207 
1208 /*------------------------------------------------------------------*/
1209 /*
1210  * Wireless Handler : get RTS threshold
1211  */
1212 static int ray_get_rts(struct net_device *dev, struct iw_request_info *info,
1213  union iwreq_data *wrqu, char *extra)
1214 {
1215  ray_dev_t *local = netdev_priv(dev);
1216 
1217  wrqu->rts.value = (local->sparm.b5.a_rts_threshold[0] << 8)
1218  + local->sparm.b5.a_rts_threshold[1];
1219  wrqu->rts.disabled = (wrqu->rts.value == 32767);
1220  wrqu->rts.fixed = 1;
1221 
1222  return 0;
1223 }
1224 
1225 /*------------------------------------------------------------------*/
1226 /*
1227  * Wireless Handler : set Fragmentation threshold
1228  */
1229 static int ray_set_frag(struct net_device *dev, struct iw_request_info *info,
1230  union iwreq_data *wrqu, char *extra)
1231 {
1232  ray_dev_t *local = netdev_priv(dev);
1233  int fthr = wrqu->frag.value;
1234 
1235  /* Reject if card is already initialised */
1236  if (local->card_status != CARD_AWAITING_PARAM)
1237  return -EBUSY;
1238 
1239  /* if(wrq->u.frag.fixed == 0) should complain */
1240  if (wrqu->frag.disabled)
1241  fthr = 32767;
1242  else {
1243  if ((fthr < 256) || (fthr > 2347)) /* To check out ! */
1244  return -EINVAL;
1245  }
1246  local->sparm.b5.a_frag_threshold[0] = (fthr >> 8) & 0xFF;
1247  local->sparm.b5.a_frag_threshold[1] = fthr & 0xFF;
1248 
1249  return -EINPROGRESS; /* Call commit handler */
1250 }
1251 
1252 /*------------------------------------------------------------------*/
1253 /*
1254  * Wireless Handler : get Fragmentation threshold
1255  */
1256 static int ray_get_frag(struct net_device *dev, struct iw_request_info *info,
1257  union iwreq_data *wrqu, char *extra)
1258 {
1259  ray_dev_t *local = netdev_priv(dev);
1260 
1261  wrqu->frag.value = (local->sparm.b5.a_frag_threshold[0] << 8)
1262  + local->sparm.b5.a_frag_threshold[1];
1263  wrqu->frag.disabled = (wrqu->frag.value == 32767);
1264  wrqu->frag.fixed = 1;
1265 
1266  return 0;
1267 }
1268 
1269 /*------------------------------------------------------------------*/
1270 /*
1271  * Wireless Handler : set Mode of Operation
1272  */
1273 static int ray_set_mode(struct net_device *dev, struct iw_request_info *info,
1274  union iwreq_data *wrqu, char *extra)
1275 {
1276  ray_dev_t *local = netdev_priv(dev);
1277  int err = -EINPROGRESS; /* Call commit handler */
1278  char card_mode = 1;
1279 
1280  /* Reject if card is already initialised */
1281  if (local->card_status != CARD_AWAITING_PARAM)
1282  return -EBUSY;
1283 
1284  switch (wrqu->mode) {
1285  case IW_MODE_ADHOC:
1286  card_mode = 0;
1287  /* Fall through */
1288  case IW_MODE_INFRA:
1289  local->sparm.b5.a_network_type = card_mode;
1290  break;
1291  default:
1292  err = -EINVAL;
1293  }
1294 
1295  return err;
1296 }
1297 
1298 /*------------------------------------------------------------------*/
1299 /*
1300  * Wireless Handler : get Mode of Operation
1301  */
1302 static int ray_get_mode(struct net_device *dev, struct iw_request_info *info,
1303  union iwreq_data *wrqu, char *extra)
1304 {
1305  ray_dev_t *local = netdev_priv(dev);
1306 
1307  if (local->sparm.b5.a_network_type)
1308  wrqu->mode = IW_MODE_INFRA;
1309  else
1310  wrqu->mode = IW_MODE_ADHOC;
1311 
1312  return 0;
1313 }
1314 
1315 /*------------------------------------------------------------------*/
1316 /*
1317  * Wireless Handler : get range info
1318  */
1319 static int ray_get_range(struct net_device *dev, struct iw_request_info *info,
1320  union iwreq_data *wrqu, char *extra)
1321 {
1322  struct iw_range *range = (struct iw_range *)extra;
1323 
1324  memset(range, 0, sizeof(struct iw_range));
1325 
1326  /* Set the length (very important for backward compatibility) */
1327  wrqu->data.length = sizeof(struct iw_range);
1328 
1329  /* Set the Wireless Extension versions */
1330  range->we_version_compiled = WIRELESS_EXT;
1331  range->we_version_source = 9;
1332 
1333  /* Set information in the range struct */
1334  range->throughput = 1.1 * 1000 * 1000; /* Put the right number here */
1335  range->num_channels = hop_pattern_length[(int)country];
1336  range->num_frequency = 0;
1337  range->max_qual.qual = 0;
1338  range->max_qual.level = 255; /* What's the correct value ? */
1339  range->max_qual.noise = 255; /* Idem */
1340  range->num_bitrates = 2;
1341  range->bitrate[0] = 1000000; /* 1 Mb/s */
1342  range->bitrate[1] = 2000000; /* 2 Mb/s */
1343  return 0;
1344 }
1345 
1346 /*------------------------------------------------------------------*/
1347 /*
1348  * Wireless Private Handler : set framing mode
1349  */
1350 static int ray_set_framing(struct net_device *dev, struct iw_request_info *info,
1351  union iwreq_data *wrqu, char *extra)
1352 {
1353  translate = *(extra); /* Set framing mode */
1354 
1355  return 0;
1356 }
1357 
1358 /*------------------------------------------------------------------*/
1359 /*
1360  * Wireless Private Handler : get framing mode
1361  */
1362 static int ray_get_framing(struct net_device *dev, struct iw_request_info *info,
1363  union iwreq_data *wrqu, char *extra)
1364 {
1365  *(extra) = translate;
1366 
1367  return 0;
1368 }
1369 
1370 /*------------------------------------------------------------------*/
1371 /*
1372  * Wireless Private Handler : get country
1373  */
1374 static int ray_get_country(struct net_device *dev, struct iw_request_info *info,
1375  union iwreq_data *wrqu, char *extra)
1376 {
1377  *(extra) = country;
1378 
1379  return 0;
1380 }
1381 
1382 /*------------------------------------------------------------------*/
1383 /*
1384  * Commit handler : called after a bunch of SET operations
1385  */
1386 static int ray_commit(struct net_device *dev, struct iw_request_info *info,
1387  union iwreq_data *wrqu, char *extra)
1388 {
1389  return 0;
1390 }
1391 
1392 /*------------------------------------------------------------------*/
1393 /*
1394  * Stats handler : return Wireless Stats
1395  */
1396 static iw_stats *ray_get_wireless_stats(struct net_device *dev)
1397 {
1398  ray_dev_t *local = netdev_priv(dev);
1399  struct pcmcia_device *link = local->finder;
1400  struct status __iomem *p = local->sram + STATUS_BASE;
1401 
1402  local->wstats.status = local->card_status;
1403 #ifdef WIRELESS_SPY
1404  if ((local->spy_data.spy_number > 0)
1405  && (local->sparm.b5.a_network_type == 0)) {
1406  /* Get it from the first node in spy list */
1407  local->wstats.qual.qual = local->spy_data.spy_stat[0].qual;
1408  local->wstats.qual.level = local->spy_data.spy_stat[0].level;
1409  local->wstats.qual.noise = local->spy_data.spy_stat[0].noise;
1410  local->wstats.qual.updated =
1411  local->spy_data.spy_stat[0].updated;
1412  }
1413 #endif /* WIRELESS_SPY */
1414 
1415  if (pcmcia_dev_present(link)) {
1416  local->wstats.qual.noise = readb(&p->rxnoise);
1417  local->wstats.qual.updated |= 4;
1418  }
1419 
1420  return &local->wstats;
1421 } /* end ray_get_wireless_stats */
1422 
1423 /*------------------------------------------------------------------*/
1424 /*
1425  * Structures to export the Wireless Handlers
1426  */
1427 
1428 static const iw_handler ray_handler[] = {
1429  IW_HANDLER(SIOCSIWCOMMIT, ray_commit),
1430  IW_HANDLER(SIOCGIWNAME, ray_get_name),
1431  IW_HANDLER(SIOCSIWFREQ, ray_set_freq),
1432  IW_HANDLER(SIOCGIWFREQ, ray_get_freq),
1433  IW_HANDLER(SIOCSIWMODE, ray_set_mode),
1434  IW_HANDLER(SIOCGIWMODE, ray_get_mode),
1435  IW_HANDLER(SIOCGIWRANGE, ray_get_range),
1436 #ifdef WIRELESS_SPY
1437  IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1438  IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1439  IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1440  IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1441 #endif /* WIRELESS_SPY */
1442  IW_HANDLER(SIOCGIWAP, ray_get_wap),
1443  IW_HANDLER(SIOCSIWESSID, ray_set_essid),
1444  IW_HANDLER(SIOCGIWESSID, ray_get_essid),
1445  IW_HANDLER(SIOCSIWRATE, ray_set_rate),
1446  IW_HANDLER(SIOCGIWRATE, ray_get_rate),
1447  IW_HANDLER(SIOCSIWRTS, ray_set_rts),
1448  IW_HANDLER(SIOCGIWRTS, ray_get_rts),
1449  IW_HANDLER(SIOCSIWFRAG, ray_set_frag),
1450  IW_HANDLER(SIOCGIWFRAG, ray_get_frag),
1451 };
1452 
1453 #define SIOCSIPFRAMING SIOCIWFIRSTPRIV /* Set framing mode */
1454 #define SIOCGIPFRAMING SIOCIWFIRSTPRIV + 1 /* Get framing mode */
1455 #define SIOCGIPCOUNTRY SIOCIWFIRSTPRIV + 3 /* Get country code */
1456 
1457 static const iw_handler ray_private_handler[] = {
1458  [0] = ray_set_framing,
1459  [1] = ray_get_framing,
1460  [3] = ray_get_country,
1461 };
1462 
1463 static const struct iw_priv_args ray_private_args[] = {
1464 /* cmd, set_args, get_args, name */
1465  {SIOCSIPFRAMING, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0,
1466  "set_framing"},
1467  {SIOCGIPFRAMING, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1468  "get_framing"},
1469  {SIOCGIPCOUNTRY, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
1470  "get_country"},
1471 };
1472 
1473 static const struct iw_handler_def ray_handler_def = {
1474  .num_standard = ARRAY_SIZE(ray_handler),
1475  .num_private = ARRAY_SIZE(ray_private_handler),
1476  .num_private_args = ARRAY_SIZE(ray_private_args),
1477  .standard = ray_handler,
1478  .private = ray_private_handler,
1479  .private_args = ray_private_args,
1480  .get_wireless_stats = ray_get_wireless_stats,
1481 };
1482 
1483 /*===========================================================================*/
1484 static int ray_open(struct net_device *dev)
1485 {
1486  ray_dev_t *local = netdev_priv(dev);
1487  struct pcmcia_device *link;
1488  link = local->finder;
1489 
1490  dev_dbg(&link->dev, "ray_open('%s')\n", dev->name);
1491 
1492  if (link->open == 0)
1493  local->num_multi = 0;
1494  link->open++;
1495 
1496  /* If the card is not started, time to start it ! - Jean II */
1497  if (local->card_status == CARD_AWAITING_PARAM) {
1498  int i;
1499 
1500  dev_dbg(&link->dev, "ray_open: doing init now !\n");
1501 
1502  /* Download startup parameters */
1503  if ((i = dl_startup_params(dev)) < 0) {
1504  printk(KERN_INFO
1505  "ray_dev_init dl_startup_params failed - "
1506  "returns 0x%x\n", i);
1507  return -1;
1508  }
1509  }
1510 
1511  if (sniffer)
1512  netif_stop_queue(dev);
1513  else
1514  netif_start_queue(dev);
1515 
1516  dev_dbg(&link->dev, "ray_open ending\n");
1517  return 0;
1518 } /* end ray_open */
1519 
1520 /*===========================================================================*/
1521 static int ray_dev_close(struct net_device *dev)
1522 {
1523  ray_dev_t *local = netdev_priv(dev);
1524  struct pcmcia_device *link;
1525  link = local->finder;
1526 
1527  dev_dbg(&link->dev, "ray_dev_close('%s')\n", dev->name);
1528 
1529  link->open--;
1530  netif_stop_queue(dev);
1531 
1532  /* In here, we should stop the hardware (stop card from beeing active)
1533  * and set local->card_status to CARD_AWAITING_PARAM, so that while the
1534  * card is closed we can chage its configuration.
1535  * Probably also need a COR reset to get sane state - Jean II */
1536 
1537  return 0;
1538 } /* end ray_dev_close */
1539 
1540 /*===========================================================================*/
1541 static void ray_reset(struct net_device *dev)
1542 {
1543  pr_debug("ray_reset entered\n");
1544 }
1545 
1546 /*===========================================================================*/
1547 /* Cause a firmware interrupt if it is ready for one */
1548 /* Return nonzero if not ready */
1549 static int interrupt_ecf(ray_dev_t *local, int ccs)
1550 {
1551  int i = 50;
1552  struct pcmcia_device *link = local->finder;
1553 
1554  if (!(pcmcia_dev_present(link))) {
1555  dev_dbg(&link->dev, "ray_cs interrupt_ecf - device not present\n");
1556  return -1;
1557  }
1558  dev_dbg(&link->dev, "interrupt_ecf(local=%p, ccs = 0x%x\n", local, ccs);
1559 
1560  while (i &&
1561  (readb(local->amem + CIS_OFFSET + ECF_INTR_OFFSET) &
1562  ECF_INTR_SET))
1563  i--;
1564  if (i == 0) {
1565  dev_dbg(&link->dev, "ray_cs interrupt_ecf card not ready for interrupt\n");
1566  return -1;
1567  }
1568  /* Fill the mailbox, then kick the card */
1569  writeb(ccs, local->sram + SCB_BASE);
1570  writeb(ECF_INTR_SET, local->amem + CIS_OFFSET + ECF_INTR_OFFSET);
1571  return 0;
1572 } /* interrupt_ecf */
1573 
1574 /*===========================================================================*/
1575 /* Get next free transmit CCS */
1576 /* Return - index of current tx ccs */
1577 static int get_free_tx_ccs(ray_dev_t *local)
1578 {
1579  int i;
1580  struct ccs __iomem *pccs = ccs_base(local);
1581  struct pcmcia_device *link = local->finder;
1582 
1583  if (!(pcmcia_dev_present(link))) {
1584  dev_dbg(&link->dev, "ray_cs get_free_tx_ccs - device not present\n");
1585  return ECARDGONE;
1586  }
1587 
1588  if (test_and_set_bit(0, &local->tx_ccs_lock)) {
1589  dev_dbg(&link->dev, "ray_cs tx_ccs_lock busy\n");
1590  return ECCSBUSY;
1591  }
1592 
1593  for (i = 0; i < NUMBER_OF_TX_CCS; i++) {
1594  if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1595  writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1596  writeb(CCS_END_LIST, &(pccs + i)->link);
1597  local->tx_ccs_lock = 0;
1598  return i;
1599  }
1600  }
1601  local->tx_ccs_lock = 0;
1602  dev_dbg(&link->dev, "ray_cs ERROR no free tx CCS for raylink card\n");
1603  return ECCSFULL;
1604 } /* get_free_tx_ccs */
1605 
1606 /*===========================================================================*/
1607 /* Get next free CCS */
1608 /* Return - index of current ccs */
1609 static int get_free_ccs(ray_dev_t *local)
1610 {
1611  int i;
1612  struct ccs __iomem *pccs = ccs_base(local);
1613  struct pcmcia_device *link = local->finder;
1614 
1615  if (!(pcmcia_dev_present(link))) {
1616  dev_dbg(&link->dev, "ray_cs get_free_ccs - device not present\n");
1617  return ECARDGONE;
1618  }
1619  if (test_and_set_bit(0, &local->ccs_lock)) {
1620  dev_dbg(&link->dev, "ray_cs ccs_lock busy\n");
1621  return ECCSBUSY;
1622  }
1623 
1624  for (i = NUMBER_OF_TX_CCS; i < NUMBER_OF_CCS; i++) {
1625  if (readb(&(pccs + i)->buffer_status) == CCS_BUFFER_FREE) {
1626  writeb(CCS_BUFFER_BUSY, &(pccs + i)->buffer_status);
1627  writeb(CCS_END_LIST, &(pccs + i)->link);
1628  local->ccs_lock = 0;
1629  return i;
1630  }
1631  }
1632  local->ccs_lock = 0;
1633  dev_dbg(&link->dev, "ray_cs ERROR no free CCS for raylink card\n");
1634  return ECCSFULL;
1635 } /* get_free_ccs */
1636 
1637 /*===========================================================================*/
1638 static void authenticate_timeout(u_long data)
1639 {
1640  ray_dev_t *local = (ray_dev_t *) data;
1641  del_timer(&local->timer);
1642  printk(KERN_INFO "ray_cs Authentication with access point failed"
1643  " - timeout\n");
1644  join_net((u_long) local);
1645 }
1646 
1647 /*===========================================================================*/
1648 static int parse_addr(char *in_str, UCHAR *out)
1649 {
1650  int len;
1651  int i, j, k;
1652  int status;
1653 
1654  if (in_str == NULL)
1655  return 0;
1656  if ((len = strlen(in_str)) < 2)
1657  return 0;
1658  memset(out, 0, ADDRLEN);
1659 
1660  status = 1;
1661  j = len - 1;
1662  if (j > 12)
1663  j = 12;
1664  i = 5;
1665 
1666  while (j > 0) {
1667  if ((k = hex_to_bin(in_str[j--])) != -1)
1668  out[i] = k;
1669  else
1670  return 0;
1671 
1672  if (j == 0)
1673  break;
1674  if ((k = hex_to_bin(in_str[j--])) != -1)
1675  out[i] += k << 4;
1676  else
1677  return 0;
1678  if (!i--)
1679  break;
1680  }
1681  return status;
1682 }
1683 
1684 /*===========================================================================*/
1685 static struct net_device_stats *ray_get_stats(struct net_device *dev)
1686 {
1687  ray_dev_t *local = netdev_priv(dev);
1688  struct pcmcia_device *link = local->finder;
1689  struct status __iomem *p = local->sram + STATUS_BASE;
1690  if (!(pcmcia_dev_present(link))) {
1691  dev_dbg(&link->dev, "ray_cs net_device_stats - device not present\n");
1692  return &local->stats;
1693  }
1694  if (readb(&p->mrx_overflow_for_host)) {
1695  local->stats.rx_over_errors += swab16(readw(&p->mrx_overflow));
1696  writeb(0, &p->mrx_overflow);
1697  writeb(0, &p->mrx_overflow_for_host);
1698  }
1699  if (readb(&p->mrx_checksum_error_for_host)) {
1700  local->stats.rx_crc_errors +=
1701  swab16(readw(&p->mrx_checksum_error));
1702  writeb(0, &p->mrx_checksum_error);
1703  writeb(0, &p->mrx_checksum_error_for_host);
1704  }
1705  if (readb(&p->rx_hec_error_for_host)) {
1706  local->stats.rx_frame_errors += swab16(readw(&p->rx_hec_error));
1707  writeb(0, &p->rx_hec_error);
1708  writeb(0, &p->rx_hec_error_for_host);
1709  }
1710  return &local->stats;
1711 }
1712 
1713 /*===========================================================================*/
1714 static void ray_update_parm(struct net_device *dev, UCHAR objid, UCHAR *value,
1715  int len)
1716 {
1717  ray_dev_t *local = netdev_priv(dev);
1718  struct pcmcia_device *link = local->finder;
1719  int ccsindex;
1720  int i;
1721  struct ccs __iomem *pccs;
1722 
1723  if (!(pcmcia_dev_present(link))) {
1724  dev_dbg(&link->dev, "ray_update_parm - device not present\n");
1725  return;
1726  }
1727 
1728  if ((ccsindex = get_free_ccs(local)) < 0) {
1729  dev_dbg(&link->dev, "ray_update_parm - No free ccs\n");
1730  return;
1731  }
1732  pccs = ccs_base(local) + ccsindex;
1733  writeb(CCS_UPDATE_PARAMS, &pccs->cmd);
1734  writeb(objid, &pccs->var.update_param.object_id);
1735  writeb(1, &pccs->var.update_param.number_objects);
1736  writeb(0, &pccs->var.update_param.failure_cause);
1737  for (i = 0; i < len; i++) {
1738  writeb(value[i], local->sram + HOST_TO_ECF_BASE);
1739  }
1740  /* Interrupt the firmware to process the command */
1741  if (interrupt_ecf(local, ccsindex)) {
1742  dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
1743  writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1744  }
1745 }
1746 
1747 /*===========================================================================*/
1748 static void ray_update_multi_list(struct net_device *dev, int all)
1749 {
1750  int ccsindex;
1751  struct ccs __iomem *pccs;
1752  ray_dev_t *local = netdev_priv(dev);
1753  struct pcmcia_device *link = local->finder;
1754  void __iomem *p = local->sram + HOST_TO_ECF_BASE;
1755 
1756  if (!(pcmcia_dev_present(link))) {
1757  dev_dbg(&link->dev, "ray_update_multi_list - device not present\n");
1758  return;
1759  } else
1760  dev_dbg(&link->dev, "ray_update_multi_list(%p)\n", dev);
1761  if ((ccsindex = get_free_ccs(local)) < 0) {
1762  dev_dbg(&link->dev, "ray_update_multi - No free ccs\n");
1763  return;
1764  }
1765  pccs = ccs_base(local) + ccsindex;
1766  writeb(CCS_UPDATE_MULTICAST_LIST, &pccs->cmd);
1767 
1768  if (all) {
1769  writeb(0xff, &pccs->var);
1770  local->num_multi = 0xff;
1771  } else {
1772  struct netdev_hw_addr *ha;
1773  int i = 0;
1774 
1775  /* Copy the kernel's list of MC addresses to card */
1776  netdev_for_each_mc_addr(ha, dev) {
1777  memcpy_toio(p, ha->addr, ETH_ALEN);
1778  dev_dbg(&link->dev, "ray_update_multi add addr %pm\n",
1779  ha->addr);
1780  p += ETH_ALEN;
1781  i++;
1782  }
1783  if (i > 256 / ADDRLEN)
1784  i = 256 / ADDRLEN;
1785  writeb((UCHAR) i, &pccs->var);
1786  dev_dbg(&link->dev, "ray_cs update_multi %d addresses in list\n", i);
1787  /* Interrupt the firmware to process the command */
1788  local->num_multi = i;
1789  }
1790  if (interrupt_ecf(local, ccsindex)) {
1791  dev_dbg(&link->dev,
1792  "ray_cs update_multi failed - ECF not ready for intr\n");
1793  writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
1794  }
1795 } /* end ray_update_multi_list */
1796 
1797 /*===========================================================================*/
1798 static void set_multicast_list(struct net_device *dev)
1799 {
1800  ray_dev_t *local = netdev_priv(dev);
1801  UCHAR promisc;
1802 
1803  pr_debug("ray_cs set_multicast_list(%p)\n", dev);
1804 
1805  if (dev->flags & IFF_PROMISC) {
1806  if (local->sparm.b5.a_promiscuous_mode == 0) {
1807  pr_debug("ray_cs set_multicast_list promisc on\n");
1808  local->sparm.b5.a_promiscuous_mode = 1;
1809  promisc = 1;
1810  ray_update_parm(dev, OBJID_promiscuous_mode,
1811  &promisc, sizeof(promisc));
1812  }
1813  } else {
1814  if (local->sparm.b5.a_promiscuous_mode == 1) {
1815  pr_debug("ray_cs set_multicast_list promisc off\n");
1816  local->sparm.b5.a_promiscuous_mode = 0;
1817  promisc = 0;
1818  ray_update_parm(dev, OBJID_promiscuous_mode,
1819  &promisc, sizeof(promisc));
1820  }
1821  }
1822 
1823  if (dev->flags & IFF_ALLMULTI)
1824  ray_update_multi_list(dev, 1);
1825  else {
1826  if (local->num_multi != netdev_mc_count(dev))
1827  ray_update_multi_list(dev, 0);
1828  }
1829 } /* end set_multicast_list */
1830 
1831 /*=============================================================================
1832  * All routines below here are run at interrupt time.
1833 =============================================================================*/
1834 static irqreturn_t ray_interrupt(int irq, void *dev_id)
1835 {
1836  struct net_device *dev = (struct net_device *)dev_id;
1837  struct pcmcia_device *link;
1838  ray_dev_t *local;
1839  struct ccs __iomem *pccs;
1840  struct rcs __iomem *prcs;
1841  UCHAR rcsindex;
1842  UCHAR tmp;
1843  UCHAR cmd;
1844  UCHAR status;
1845 
1846  if (dev == NULL) /* Note that we want interrupts with dev->start == 0 */
1847  return IRQ_NONE;
1848 
1849  pr_debug("ray_cs: interrupt for *dev=%p\n", dev);
1850 
1851  local = netdev_priv(dev);
1852  link = local->finder;
1853  if (!pcmcia_dev_present(link)) {
1854  pr_debug(
1855  "ray_cs interrupt from device not present or suspended.\n");
1856  return IRQ_NONE;
1857  }
1858  rcsindex = readb(&((struct scb __iomem *)(local->sram))->rcs_index);
1859 
1860  if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
1861  dev_dbg(&link->dev, "ray_cs interrupt bad rcsindex = 0x%x\n", rcsindex);
1862  clear_interrupt(local);
1863  return IRQ_HANDLED;
1864  }
1865  if (rcsindex < NUMBER_OF_CCS) { /* If it's a returned CCS */
1866  pccs = ccs_base(local) + rcsindex;
1867  cmd = readb(&pccs->cmd);
1868  status = readb(&pccs->buffer_status);
1869  switch (cmd) {
1870  case CCS_DOWNLOAD_STARTUP_PARAMS: /* Happens in firmware someday */
1871  del_timer(&local->timer);
1872  if (status == CCS_COMMAND_COMPLETE) {
1873  dev_dbg(&link->dev,
1874  "ray_cs interrupt download_startup_parameters OK\n");
1875  } else {
1876  dev_dbg(&link->dev,
1877  "ray_cs interrupt download_startup_parameters fail\n");
1878  }
1879  break;
1880  case CCS_UPDATE_PARAMS:
1881  dev_dbg(&link->dev, "ray_cs interrupt update params done\n");
1882  if (status != CCS_COMMAND_COMPLETE) {
1883  tmp =
1884  readb(&pccs->var.update_param.
1885  failure_cause);
1886  dev_dbg(&link->dev,
1887  "ray_cs interrupt update params failed - reason %d\n",
1888  tmp);
1889  }
1890  break;
1891  case CCS_REPORT_PARAMS:
1892  dev_dbg(&link->dev, "ray_cs interrupt report params done\n");
1893  break;
1894  case CCS_UPDATE_MULTICAST_LIST: /* Note that this CCS isn't returned */
1895  dev_dbg(&link->dev,
1896  "ray_cs interrupt CCS Update Multicast List done\n");
1897  break;
1898  case CCS_UPDATE_POWER_SAVINGS_MODE:
1899  dev_dbg(&link->dev,
1900  "ray_cs interrupt update power save mode done\n");
1901  break;
1902  case CCS_START_NETWORK:
1903  case CCS_JOIN_NETWORK:
1904  if (status == CCS_COMMAND_COMPLETE) {
1905  if (readb
1906  (&pccs->var.start_network.net_initiated) ==
1907  1) {
1908  dev_dbg(&link->dev,
1909  "ray_cs interrupt network \"%s\" started\n",
1910  local->sparm.b4.a_current_ess_id);
1911  } else {
1912  dev_dbg(&link->dev,
1913  "ray_cs interrupt network \"%s\" joined\n",
1914  local->sparm.b4.a_current_ess_id);
1915  }
1916  memcpy_fromio(&local->bss_id,
1917  pccs->var.start_network.bssid,
1918  ADDRLEN);
1919 
1920  if (local->fw_ver == 0x55)
1921  local->net_default_tx_rate = 3;
1922  else
1923  local->net_default_tx_rate =
1924  readb(&pccs->var.start_network.
1925  net_default_tx_rate);
1926  local->encryption =
1927  readb(&pccs->var.start_network.encryption);
1928  if (!sniffer && (local->net_type == INFRA)
1929  && !(local->sparm.b4.a_acting_as_ap_status)) {
1930  authenticate(local);
1931  }
1932  local->card_status = CARD_ACQ_COMPLETE;
1933  } else {
1934  local->card_status = CARD_ACQ_FAILED;
1935 
1936  del_timer(&local->timer);
1937  local->timer.expires = jiffies + HZ * 5;
1938  local->timer.data = (long)local;
1939  if (status == CCS_START_NETWORK) {
1940  dev_dbg(&link->dev,
1941  "ray_cs interrupt network \"%s\" start failed\n",
1942  local->sparm.b4.a_current_ess_id);
1943  local->timer.function = start_net;
1944  } else {
1945  dev_dbg(&link->dev,
1946  "ray_cs interrupt network \"%s\" join failed\n",
1947  local->sparm.b4.a_current_ess_id);
1948  local->timer.function = join_net;
1949  }
1950  add_timer(&local->timer);
1951  }
1952  break;
1953  case CCS_START_ASSOCIATION:
1954  if (status == CCS_COMMAND_COMPLETE) {
1955  local->card_status = CARD_ASSOC_COMPLETE;
1956  dev_dbg(&link->dev, "ray_cs association successful\n");
1957  } else {
1958  dev_dbg(&link->dev, "ray_cs association failed,\n");
1959  local->card_status = CARD_ASSOC_FAILED;
1960  join_net((u_long) local);
1961  }
1962  break;
1963  case CCS_TX_REQUEST:
1964  if (status == CCS_COMMAND_COMPLETE) {
1965  dev_dbg(&link->dev,
1966  "ray_cs interrupt tx request complete\n");
1967  } else {
1968  dev_dbg(&link->dev,
1969  "ray_cs interrupt tx request failed\n");
1970  }
1971  if (!sniffer)
1972  netif_start_queue(dev);
1973  netif_wake_queue(dev);
1974  break;
1975  case CCS_TEST_MEMORY:
1976  dev_dbg(&link->dev, "ray_cs interrupt mem test done\n");
1977  break;
1978  case CCS_SHUTDOWN:
1979  dev_dbg(&link->dev,
1980  "ray_cs interrupt Unexpected CCS returned - Shutdown\n");
1981  break;
1982  case CCS_DUMP_MEMORY:
1983  dev_dbg(&link->dev, "ray_cs interrupt dump memory done\n");
1984  break;
1985  case CCS_START_TIMER:
1986  dev_dbg(&link->dev,
1987  "ray_cs interrupt DING - raylink timer expired\n");
1988  break;
1989  default:
1990  dev_dbg(&link->dev,
1991  "ray_cs interrupt Unexpected CCS 0x%x returned 0x%x\n",
1992  rcsindex, cmd);
1993  }
1994  writeb(CCS_BUFFER_FREE, &pccs->buffer_status);
1995  } else { /* It's an RCS */
1996 
1997  prcs = rcs_base(local) + rcsindex;
1998 
1999  switch (readb(&prcs->interrupt_id)) {
2000  case PROCESS_RX_PACKET:
2001  ray_rx(dev, local, prcs);
2002  break;
2003  case REJOIN_NET_COMPLETE:
2004  dev_dbg(&link->dev, "ray_cs interrupt rejoin net complete\n");
2005  local->card_status = CARD_ACQ_COMPLETE;
2006  /* do we need to clear tx buffers CCS's? */
2007  if (local->sparm.b4.a_network_type == ADHOC) {
2008  if (!sniffer)
2009  netif_start_queue(dev);
2010  } else {
2011  memcpy_fromio(&local->bss_id,
2012  prcs->var.rejoin_net_complete.
2013  bssid, ADDRLEN);
2014  dev_dbg(&link->dev, "ray_cs new BSSID = %pm\n",
2015  local->bss_id);
2016  if (!sniffer)
2017  authenticate(local);
2018  }
2019  break;
2020  case ROAMING_INITIATED:
2021  dev_dbg(&link->dev, "ray_cs interrupt roaming initiated\n");
2022  netif_stop_queue(dev);
2023  local->card_status = CARD_DOING_ACQ;
2024  break;
2025  case JAPAN_CALL_SIGN_RXD:
2026  dev_dbg(&link->dev, "ray_cs interrupt japan call sign rx\n");
2027  break;
2028  default:
2029  dev_dbg(&link->dev,
2030  "ray_cs Unexpected interrupt for RCS 0x%x cmd = 0x%x\n",
2031  rcsindex,
2032  (unsigned int)readb(&prcs->interrupt_id));
2033  break;
2034  }
2035  writeb(CCS_BUFFER_FREE, &prcs->buffer_status);
2036  }
2037  clear_interrupt(local);
2038  return IRQ_HANDLED;
2039 } /* ray_interrupt */
2040 
2041 /*===========================================================================*/
2042 static void ray_rx(struct net_device *dev, ray_dev_t *local,
2043  struct rcs __iomem *prcs)
2044 {
2045  int rx_len;
2046  unsigned int pkt_addr;
2047  void __iomem *pmsg;
2048  pr_debug("ray_rx process rx packet\n");
2049 
2050  /* Calculate address of packet within Rx buffer */
2051  pkt_addr = ((readb(&prcs->var.rx_packet.rx_data_ptr[0]) << 8)
2052  + readb(&prcs->var.rx_packet.rx_data_ptr[1])) & RX_BUFF_END;
2053  /* Length of first packet fragment */
2054  rx_len = (readb(&prcs->var.rx_packet.rx_data_length[0]) << 8)
2055  + readb(&prcs->var.rx_packet.rx_data_length[1]);
2056 
2057  local->last_rsl = readb(&prcs->var.rx_packet.rx_sig_lev);
2058  pmsg = local->rmem + pkt_addr;
2059  switch (readb(pmsg)) {
2060  case DATA_TYPE:
2061  pr_debug("ray_rx data type\n");
2062  rx_data(dev, prcs, pkt_addr, rx_len);
2063  break;
2064  case AUTHENTIC_TYPE:
2065  pr_debug("ray_rx authentic type\n");
2066  if (sniffer)
2067  rx_data(dev, prcs, pkt_addr, rx_len);
2068  else
2069  rx_authenticate(local, prcs, pkt_addr, rx_len);
2070  break;
2071  case DEAUTHENTIC_TYPE:
2072  pr_debug("ray_rx deauth type\n");
2073  if (sniffer)
2074  rx_data(dev, prcs, pkt_addr, rx_len);
2075  else
2076  rx_deauthenticate(local, prcs, pkt_addr, rx_len);
2077  break;
2078  case NULL_MSG_TYPE:
2079  pr_debug("ray_cs rx NULL msg\n");
2080  break;
2081  case BEACON_TYPE:
2082  pr_debug("ray_rx beacon type\n");
2083  if (sniffer)
2084  rx_data(dev, prcs, pkt_addr, rx_len);
2085 
2086  copy_from_rx_buff(local, (UCHAR *) &local->last_bcn, pkt_addr,
2087  rx_len < sizeof(struct beacon_rx) ?
2088  rx_len : sizeof(struct beacon_rx));
2089 
2090  local->beacon_rxed = 1;
2091  /* Get the statistics so the card counters never overflow */
2092  ray_get_stats(dev);
2093  break;
2094  default:
2095  pr_debug("ray_cs unknown pkt type %2x\n",
2096  (unsigned int)readb(pmsg));
2097  break;
2098  }
2099 
2100 } /* end ray_rx */
2101 
2102 /*===========================================================================*/
2103 static void rx_data(struct net_device *dev, struct rcs __iomem *prcs,
2104  unsigned int pkt_addr, int rx_len)
2105 {
2106  struct sk_buff *skb = NULL;
2107  struct rcs __iomem *prcslink = prcs;
2108  ray_dev_t *local = netdev_priv(dev);
2109  UCHAR *rx_ptr;
2110  int total_len;
2111  int tmp;
2112 #ifdef WIRELESS_SPY
2113  int siglev = local->last_rsl;
2114  u_char linksrcaddr[ETH_ALEN]; /* Other end of the wireless link */
2115 #endif
2116 
2117  if (!sniffer) {
2118  if (translate) {
2119 /* TBD length needs fixing for translated header */
2120  if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2121  rx_len >
2122  (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2123  FCS_LEN)) {
2124  pr_debug(
2125  "ray_cs invalid packet length %d received\n",
2126  rx_len);
2127  return;
2128  }
2129  } else { /* encapsulated ethernet */
2130 
2131  if (rx_len < (ETH_HLEN + RX_MAC_HEADER_LENGTH) ||
2132  rx_len >
2133  (dev->mtu + RX_MAC_HEADER_LENGTH + ETH_HLEN +
2134  FCS_LEN)) {
2135  pr_debug(
2136  "ray_cs invalid packet length %d received\n",
2137  rx_len);
2138  return;
2139  }
2140  }
2141  }
2142  pr_debug("ray_cs rx_data packet\n");
2143  /* If fragmented packet, verify sizes of fragments add up */
2144  if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2145  pr_debug("ray_cs rx'ed fragment\n");
2146  tmp = (readb(&prcs->var.rx_packet.totalpacketlength[0]) << 8)
2147  + readb(&prcs->var.rx_packet.totalpacketlength[1]);
2148  total_len = tmp;
2149  prcslink = prcs;
2150  do {
2151  tmp -=
2152  (readb(&prcslink->var.rx_packet.rx_data_length[0])
2153  << 8)
2154  + readb(&prcslink->var.rx_packet.rx_data_length[1]);
2155  if (readb(&prcslink->var.rx_packet.next_frag_rcs_index)
2156  == 0xFF || tmp < 0)
2157  break;
2158  prcslink = rcs_base(local)
2159  + readb(&prcslink->link_field);
2160  } while (1);
2161 
2162  if (tmp < 0) {
2163  pr_debug(
2164  "ray_cs rx_data fragment lengths don't add up\n");
2165  local->stats.rx_dropped++;
2166  release_frag_chain(local, prcs);
2167  return;
2168  }
2169  } else { /* Single unfragmented packet */
2170  total_len = rx_len;
2171  }
2172 
2173  skb = dev_alloc_skb(total_len + 5);
2174  if (skb == NULL) {
2175  pr_debug("ray_cs rx_data could not allocate skb\n");
2176  local->stats.rx_dropped++;
2177  if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF)
2178  release_frag_chain(local, prcs);
2179  return;
2180  }
2181  skb_reserve(skb, 2); /* Align IP on 16 byte (TBD check this) */
2182 
2183  pr_debug("ray_cs rx_data total_len = %x, rx_len = %x\n", total_len,
2184  rx_len);
2185 
2186 /************************/
2187  /* Reserve enough room for the whole damn packet. */
2188  rx_ptr = skb_put(skb, total_len);
2189  /* Copy the whole packet to sk_buff */
2190  rx_ptr +=
2191  copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
2192  /* Get source address */
2193 #ifdef WIRELESS_SPY
2194  skb_copy_from_linear_data_offset(skb,
2195  offsetof(struct mac_header, addr_2),
2196  linksrcaddr, ETH_ALEN);
2197 #endif
2198  /* Now, deal with encapsulation/translation/sniffer */
2199  if (!sniffer) {
2200  if (!translate) {
2201  /* Encapsulated ethernet, so just lop off 802.11 MAC header */
2202 /* TBD reserve skb_reserve( skb, RX_MAC_HEADER_LENGTH); */
2203  skb_pull(skb, RX_MAC_HEADER_LENGTH);
2204  } else {
2205  /* Do translation */
2206  untranslate(local, skb, total_len);
2207  }
2208  } else { /* sniffer mode, so just pass whole packet */
2209  };
2210 
2211 /************************/
2212  /* Now pick up the rest of the fragments if any */
2213  tmp = 17;
2214  if (readb(&prcs->var.rx_packet.next_frag_rcs_index) != 0xFF) {
2215  prcslink = prcs;
2216  pr_debug("ray_cs rx_data in fragment loop\n");
2217  do {
2218  prcslink = rcs_base(local)
2219  +
2220  readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2221  rx_len =
2222  ((readb(&prcslink->var.rx_packet.rx_data_length[0])
2223  << 8)
2224  +
2225  readb(&prcslink->var.rx_packet.rx_data_length[1]))
2226  & RX_BUFF_END;
2227  pkt_addr =
2228  ((readb(&prcslink->var.rx_packet.rx_data_ptr[0]) <<
2229  8)
2230  + readb(&prcslink->var.rx_packet.rx_data_ptr[1]))
2231  & RX_BUFF_END;
2232 
2233  rx_ptr +=
2234  copy_from_rx_buff(local, rx_ptr, pkt_addr, rx_len);
2235 
2236  } while (tmp-- &&
2237  readb(&prcslink->var.rx_packet.next_frag_rcs_index) !=
2238  0xFF);
2239  release_frag_chain(local, prcs);
2240  }
2241 
2242  skb->protocol = eth_type_trans(skb, dev);
2243  netif_rx(skb);
2244  local->stats.rx_packets++;
2245  local->stats.rx_bytes += total_len;
2246 
2247  /* Gather signal strength per address */
2248 #ifdef WIRELESS_SPY
2249  /* For the Access Point or the node having started the ad-hoc net
2250  * note : ad-hoc work only in some specific configurations, but we
2251  * kludge in ray_get_wireless_stats... */
2252  if (!memcmp(linksrcaddr, local->bss_id, ETH_ALEN)) {
2253  /* Update statistics */
2254  /*local->wstats.qual.qual = none ? */
2255  local->wstats.qual.level = siglev;
2256  /*local->wstats.qual.noise = none ? */
2257  local->wstats.qual.updated = 0x2;
2258  }
2259  /* Now, update the spy stuff */
2260  {
2261  struct iw_quality wstats;
2262  wstats.level = siglev;
2263  /* wstats.noise = none ? */
2264  /* wstats.qual = none ? */
2265  wstats.updated = 0x2;
2266  /* Update spy records */
2267  wireless_spy_update(dev, linksrcaddr, &wstats);
2268  }
2269 #endif /* WIRELESS_SPY */
2270 } /* end rx_data */
2271 
2272 /*===========================================================================*/
2273 static void untranslate(ray_dev_t *local, struct sk_buff *skb, int len)
2274 {
2275  snaphdr_t *psnap = (snaphdr_t *) (skb->data + RX_MAC_HEADER_LENGTH);
2276  struct ieee80211_hdr *pmac = (struct ieee80211_hdr *)skb->data;
2277  __be16 type = *(__be16 *) psnap->ethertype;
2278  int delta;
2279  struct ethhdr *peth;
2280  UCHAR srcaddr[ADDRLEN];
2281  UCHAR destaddr[ADDRLEN];
2282  static const UCHAR org_bridge[3] = { 0, 0, 0xf8 };
2283  static const UCHAR org_1042[3] = { 0, 0, 0 };
2284 
2285  memcpy(destaddr, ieee80211_get_DA(pmac), ADDRLEN);
2286  memcpy(srcaddr, ieee80211_get_SA(pmac), ADDRLEN);
2287 
2288 #if 0
2289  if {
2290  print_hex_dump(KERN_DEBUG, "skb->data before untranslate: ",
2291  DUMP_PREFIX_NONE, 16, 1,
2292  skb->data, 64, true);
2293  printk(KERN_DEBUG
2294  "type = %08x, xsap = %02x%02x%02x, org = %02x02x02x\n",
2295  ntohs(type), psnap->dsap, psnap->ssap, psnap->ctrl,
2296  psnap->org[0], psnap->org[1], psnap->org[2]);
2297  printk(KERN_DEBUG "untranslate skb->data = %p\n", skb->data);
2298  }
2299 #endif
2300 
2301  if (psnap->dsap != 0xaa || psnap->ssap != 0xaa || psnap->ctrl != 3) {
2302  /* not a snap type so leave it alone */
2303  pr_debug("ray_cs untranslate NOT SNAP %02x %02x %02x\n",
2304  psnap->dsap, psnap->ssap, psnap->ctrl);
2305 
2306  delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2307  peth = (struct ethhdr *)(skb->data + delta);
2308  peth->h_proto = htons(len - RX_MAC_HEADER_LENGTH);
2309  } else { /* Its a SNAP */
2310  if (memcmp(psnap->org, org_bridge, 3) == 0) {
2311  /* EtherII and nuke the LLC */
2312  pr_debug("ray_cs untranslate Bridge encap\n");
2313  delta = RX_MAC_HEADER_LENGTH
2314  + sizeof(struct snaphdr_t) - ETH_HLEN;
2315  peth = (struct ethhdr *)(skb->data + delta);
2316  peth->h_proto = type;
2317  } else if (memcmp(psnap->org, org_1042, 3) == 0) {
2318  switch (ntohs(type)) {
2319  case ETH_P_IPX:
2320  case ETH_P_AARP:
2321  pr_debug("ray_cs untranslate RFC IPX/AARP\n");
2322  delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2323  peth = (struct ethhdr *)(skb->data + delta);
2324  peth->h_proto =
2325  htons(len - RX_MAC_HEADER_LENGTH);
2326  break;
2327  default:
2328  pr_debug("ray_cs untranslate RFC default\n");
2329  delta = RX_MAC_HEADER_LENGTH +
2330  sizeof(struct snaphdr_t) - ETH_HLEN;
2331  peth = (struct ethhdr *)(skb->data + delta);
2332  peth->h_proto = type;
2333  break;
2334  }
2335  } else {
2336  printk("ray_cs untranslate very confused by packet\n");
2337  delta = RX_MAC_HEADER_LENGTH - ETH_HLEN;
2338  peth = (struct ethhdr *)(skb->data + delta);
2339  peth->h_proto = type;
2340  }
2341  }
2342 /* TBD reserve skb_reserve(skb, delta); */
2343  skb_pull(skb, delta);
2344  pr_debug("untranslate after skb_pull(%d), skb->data = %p\n", delta,
2345  skb->data);
2346  memcpy(peth->h_dest, destaddr, ADDRLEN);
2347  memcpy(peth->h_source, srcaddr, ADDRLEN);
2348 #if 0
2349  {
2350  int i;
2351  printk(KERN_DEBUG "skb->data after untranslate:");
2352  for (i = 0; i < 64; i++)
2353  printk("%02x ", skb->data[i]);
2354  printk("\n");
2355  }
2356 #endif
2357 } /* end untranslate */
2358 
2359 /*===========================================================================*/
2360 /* Copy data from circular receive buffer to PC memory.
2361  * dest = destination address in PC memory
2362  * pkt_addr = source address in receive buffer
2363  * len = length of packet to copy
2364  */
2365 static int copy_from_rx_buff(ray_dev_t *local, UCHAR *dest, int pkt_addr,
2366  int length)
2367 {
2368  int wrap_bytes = (pkt_addr + length) - (RX_BUFF_END + 1);
2369  if (wrap_bytes <= 0) {
2370  memcpy_fromio(dest, local->rmem + pkt_addr, length);
2371  } else { /* Packet wrapped in circular buffer */
2372 
2373  memcpy_fromio(dest, local->rmem + pkt_addr,
2374  length - wrap_bytes);
2375  memcpy_fromio(dest + length - wrap_bytes, local->rmem,
2376  wrap_bytes);
2377  }
2378  return length;
2379 }
2380 
2381 /*===========================================================================*/
2382 static void release_frag_chain(ray_dev_t *local, struct rcs __iomem *prcs)
2383 {
2384  struct rcs __iomem *prcslink = prcs;
2385  int tmp = 17;
2386  unsigned rcsindex = readb(&prcs->var.rx_packet.next_frag_rcs_index);
2387 
2388  while (tmp--) {
2389  writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2390  if (rcsindex >= (NUMBER_OF_CCS + NUMBER_OF_RCS)) {
2391  pr_debug("ray_cs interrupt bad rcsindex = 0x%x\n",
2392  rcsindex);
2393  break;
2394  }
2395  prcslink = rcs_base(local) + rcsindex;
2396  rcsindex = readb(&prcslink->var.rx_packet.next_frag_rcs_index);
2397  }
2398  writeb(CCS_BUFFER_FREE, &prcslink->buffer_status);
2399 }
2400 
2401 /*===========================================================================*/
2402 static void authenticate(ray_dev_t *local)
2403 {
2404  struct pcmcia_device *link = local->finder;
2405  dev_dbg(&link->dev, "ray_cs Starting authentication.\n");
2406  if (!(pcmcia_dev_present(link))) {
2407  dev_dbg(&link->dev, "ray_cs authenticate - device not present\n");
2408  return;
2409  }
2410 
2411  del_timer(&local->timer);
2412  if (build_auth_frame(local, local->bss_id, OPEN_AUTH_REQUEST)) {
2413  local->timer.function = join_net;
2414  } else {
2415  local->timer.function = authenticate_timeout;
2416  }
2417  local->timer.expires = jiffies + HZ * 2;
2418  local->timer.data = (long)local;
2419  add_timer(&local->timer);
2420  local->authentication_state = AWAITING_RESPONSE;
2421 } /* end authenticate */
2422 
2423 /*===========================================================================*/
2424 static void rx_authenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2425  unsigned int pkt_addr, int rx_len)
2426 {
2427  UCHAR buff[256];
2428  struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2429 
2430  del_timer(&local->timer);
2431 
2432  copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2433  /* if we are trying to get authenticated */
2434  if (local->sparm.b4.a_network_type == ADHOC) {
2435  pr_debug("ray_cs rx_auth var= %02x %02x %02x %02x %02x %02x\n",
2436  msg->var[0], msg->var[1], msg->var[2], msg->var[3],
2437  msg->var[4], msg->var[5]);
2438  if (msg->var[2] == 1) {
2439  pr_debug("ray_cs Sending authentication response.\n");
2440  if (!build_auth_frame
2441  (local, msg->mac.addr_2, OPEN_AUTH_RESPONSE)) {
2442  local->authentication_state = NEED_TO_AUTH;
2443  memcpy(local->auth_id, msg->mac.addr_2,
2444  ADDRLEN);
2445  }
2446  }
2447  } else { /* Infrastructure network */
2448 
2449  if (local->authentication_state == AWAITING_RESPONSE) {
2450  /* Verify authentication sequence #2 and success */
2451  if (msg->var[2] == 2) {
2452  if ((msg->var[3] | msg->var[4]) == 0) {
2453  pr_debug("Authentication successful\n");
2454  local->card_status = CARD_AUTH_COMPLETE;
2455  associate(local);
2456  local->authentication_state =
2457  AUTHENTICATED;
2458  } else {
2459  pr_debug("Authentication refused\n");
2460  local->card_status = CARD_AUTH_REFUSED;
2461  join_net((u_long) local);
2462  local->authentication_state =
2463  UNAUTHENTICATED;
2464  }
2465  }
2466  }
2467  }
2468 
2469 } /* end rx_authenticate */
2470 
2471 /*===========================================================================*/
2472 static void associate(ray_dev_t *local)
2473 {
2474  struct ccs __iomem *pccs;
2475  struct pcmcia_device *link = local->finder;
2476  struct net_device *dev = link->priv;
2477  int ccsindex;
2478  if (!(pcmcia_dev_present(link))) {
2479  dev_dbg(&link->dev, "ray_cs associate - device not present\n");
2480  return;
2481  }
2482  /* If no tx buffers available, return */
2483  if ((ccsindex = get_free_ccs(local)) < 0) {
2484 /* TBD should never be here but... what if we are? */
2485  dev_dbg(&link->dev, "ray_cs associate - No free ccs\n");
2486  return;
2487  }
2488  dev_dbg(&link->dev, "ray_cs Starting association with access point\n");
2489  pccs = ccs_base(local) + ccsindex;
2490  /* fill in the CCS */
2491  writeb(CCS_START_ASSOCIATION, &pccs->cmd);
2492  /* Interrupt the firmware to process the command */
2493  if (interrupt_ecf(local, ccsindex)) {
2494  dev_dbg(&link->dev, "ray_cs associate failed - ECF not ready for intr\n");
2495  writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2496 
2497  del_timer(&local->timer);
2498  local->timer.expires = jiffies + HZ * 2;
2499  local->timer.data = (long)local;
2500  local->timer.function = join_net;
2501  add_timer(&local->timer);
2502  local->card_status = CARD_ASSOC_FAILED;
2503  return;
2504  }
2505  if (!sniffer)
2506  netif_start_queue(dev);
2507 
2508 } /* end associate */
2509 
2510 /*===========================================================================*/
2511 static void rx_deauthenticate(ray_dev_t *local, struct rcs __iomem *prcs,
2512  unsigned int pkt_addr, int rx_len)
2513 {
2514 /* UCHAR buff[256];
2515  struct ray_rx_msg *msg = (struct ray_rx_msg *) buff;
2516 */
2517  pr_debug("Deauthentication frame received\n");
2518  local->authentication_state = UNAUTHENTICATED;
2519  /* Need to reauthenticate or rejoin depending on reason code */
2520 /* copy_from_rx_buff(local, buff, pkt_addr, rx_len & 0xff);
2521  */
2522 }
2523 
2524 /*===========================================================================*/
2525 static void clear_interrupt(ray_dev_t *local)
2526 {
2527  writeb(0, local->amem + CIS_OFFSET + HCS_INTR_OFFSET);
2528 }
2529 
2530 /*===========================================================================*/
2531 #ifdef CONFIG_PROC_FS
2532 #define MAXDATA (PAGE_SIZE - 80)
2533 
2534 static const char *card_status[] = {
2535  "Card inserted - uninitialized", /* 0 */
2536  "Card not downloaded", /* 1 */
2537  "Waiting for download parameters", /* 2 */
2538  "Card doing acquisition", /* 3 */
2539  "Acquisition complete", /* 4 */
2540  "Authentication complete", /* 5 */
2541  "Association complete", /* 6 */
2542  "???", "???", "???", "???", /* 7 8 9 10 undefined */
2543  "Card init error", /* 11 */
2544  "Download parameters error", /* 12 */
2545  "???", /* 13 */
2546  "Acquisition failed", /* 14 */
2547  "Authentication refused", /* 15 */
2548  "Association failed" /* 16 */
2549 };
2550 
2551 static const char *nettype[] = { "Adhoc", "Infra " };
2552 static const char *framing[] = { "Encapsulation", "Translation" }
2553 
2554 ;
2555 /*===========================================================================*/
2556 static int ray_cs_proc_show(struct seq_file *m, void *v)
2557 {
2558 /* Print current values which are not available via other means
2559  * eg ifconfig
2560  */
2561  int i;
2562  struct pcmcia_device *link;
2563  struct net_device *dev;
2564  ray_dev_t *local;
2565  UCHAR *p;
2566  struct freq_hop_element *pfh;
2567  UCHAR c[33];
2568 
2569  link = this_device;
2570  if (!link)
2571  return 0;
2572  dev = (struct net_device *)link->priv;
2573  if (!dev)
2574  return 0;
2575  local = netdev_priv(dev);
2576  if (!local)
2577  return 0;
2578 
2579  seq_puts(m, "Raylink Wireless LAN driver status\n");
2580  seq_printf(m, "%s\n", rcsid);
2581  /* build 4 does not report version, and field is 0x55 after memtest */
2582  seq_puts(m, "Firmware version = ");
2583  if (local->fw_ver == 0x55)
2584  seq_puts(m, "4 - Use dump_cis for more details\n");
2585  else
2586  seq_printf(m, "%2d.%02d.%02d\n",
2587  local->fw_ver, local->fw_bld, local->fw_var);
2588 
2589  for (i = 0; i < 32; i++)
2590  c[i] = local->sparm.b5.a_current_ess_id[i];
2591  c[32] = 0;
2592  seq_printf(m, "%s network ESSID = \"%s\"\n",
2593  nettype[local->sparm.b5.a_network_type], c);
2594 
2595  p = local->bss_id;
2596  seq_printf(m, "BSSID = %pM\n", p);
2597 
2598  seq_printf(m, "Country code = %d\n",
2599  local->sparm.b5.a_curr_country_code);
2600 
2601  i = local->card_status;
2602  if (i < 0)
2603  i = 10;
2604  if (i > 16)
2605  i = 10;
2606  seq_printf(m, "Card status = %s\n", card_status[i]);
2607 
2608  seq_printf(m, "Framing mode = %s\n", framing[translate]);
2609 
2610  seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl);
2611 
2612  if (local->beacon_rxed) {
2613  /* Pull some fields out of last beacon received */
2614  seq_printf(m, "Beacon Interval = %d Kus\n",
2615  local->last_bcn.beacon_intvl[0]
2616  + 256 * local->last_bcn.beacon_intvl[1]);
2617 
2618  p = local->last_bcn.elements;
2619  if (p[0] == C_ESSID_ELEMENT_ID)
2620  p += p[1] + 2;
2621  else {
2622  seq_printf(m,
2623  "Parse beacon failed at essid element id = %d\n",
2624  p[0]);
2625  return 0;
2626  }
2627 
2628  if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
2629  seq_puts(m, "Supported rate codes = ");
2630  for (i = 2; i < p[1] + 2; i++)
2631  seq_printf(m, "0x%02x ", p[i]);
2632  seq_putc(m, '\n');
2633  p += p[1] + 2;
2634  } else {
2635  seq_puts(m, "Parse beacon failed at rates element\n");
2636  return 0;
2637  }
2638 
2639  if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
2640  pfh = (struct freq_hop_element *)p;
2641  seq_printf(m, "Hop dwell = %d Kus\n",
2642  pfh->dwell_time[0] +
2643  256 * pfh->dwell_time[1]);
2644  seq_printf(m, "Hop set = %d\n",
2645  pfh->hop_set);
2646  seq_printf(m, "Hop pattern = %d\n",
2647  pfh->hop_pattern);
2648  seq_printf(m, "Hop index = %d\n",
2649  pfh->hop_index);
2650  p += p[1] + 2;
2651  } else {
2652  seq_puts(m,
2653  "Parse beacon failed at FH param element\n");
2654  return 0;
2655  }
2656  } else {
2657  seq_puts(m, "No beacons received\n");
2658  }
2659  return 0;
2660 }
2661 
2662 static int ray_cs_proc_open(struct inode *inode, struct file *file)
2663 {
2664  return single_open(file, ray_cs_proc_show, NULL);
2665 }
2666 
2667 static const struct file_operations ray_cs_proc_fops = {
2668  .owner = THIS_MODULE,
2669  .open = ray_cs_proc_open,
2670  .read = seq_read,
2671  .llseek = seq_lseek,
2672  .release = single_release,
2673 };
2674 #endif
2675 /*===========================================================================*/
2676 static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
2677 {
2678  int addr;
2679  struct ccs __iomem *pccs;
2680  struct tx_msg __iomem *ptx;
2681  int ccsindex;
2682 
2683  /* If no tx buffers available, return */
2684  if ((ccsindex = get_free_tx_ccs(local)) < 0) {
2685  pr_debug("ray_cs send authenticate - No free tx ccs\n");
2686  return -1;
2687  }
2688 
2689  pccs = ccs_base(local) + ccsindex;
2690 
2691  /* Address in card space */
2692  addr = TX_BUF_BASE + (ccsindex << 11);
2693  /* fill in the CCS */
2694  writeb(CCS_TX_REQUEST, &pccs->cmd);
2695  writeb(addr >> 8, pccs->var.tx_request.tx_data_ptr);
2696  writeb(0x20, pccs->var.tx_request.tx_data_ptr + 1);
2697  writeb(TX_AUTHENTICATE_LENGTH_MSB, pccs->var.tx_request.tx_data_length);
2698  writeb(TX_AUTHENTICATE_LENGTH_LSB,
2699  pccs->var.tx_request.tx_data_length + 1);
2700  writeb(0, &pccs->var.tx_request.pow_sav_mode);
2701 
2702  ptx = local->sram + addr;
2703  /* fill in the mac header */
2704  writeb(PROTOCOL_VER | AUTHENTIC_TYPE, &ptx->mac.frame_ctl_1);
2705  writeb(0, &ptx->mac.frame_ctl_2);
2706 
2707  memcpy_toio(ptx->mac.addr_1, dest, ADDRLEN);
2708  memcpy_toio(ptx->mac.addr_2, local->sparm.b4.a_mac_addr, ADDRLEN);
2709  memcpy_toio(ptx->mac.addr_3, local->bss_id, ADDRLEN);
2710 
2711  /* Fill in msg body with protocol 00 00, sequence 01 00 ,status 00 00 */
2712  memset_io(ptx->var, 0, 6);
2713  writeb(auth_type & 0xff, ptx->var + 2);
2714 
2715  /* Interrupt the firmware to process the command */
2716  if (interrupt_ecf(local, ccsindex)) {
2717  pr_debug(
2718  "ray_cs send authentication request failed - ECF not ready for intr\n");
2719  writeb(CCS_BUFFER_FREE, &(pccs++)->buffer_status);
2720  return -1;
2721  }
2722  return 0;
2723 } /* End build_auth_frame */
2724 
2725 /*===========================================================================*/
2726 #ifdef CONFIG_PROC_FS
2727 static ssize_t ray_cs_essid_proc_write(struct file *file,
2728  const char __user *buffer, size_t count, loff_t *pos)
2729 {
2730  static char proc_essid[33];
2731  unsigned int len = count;
2732 
2733  if (len > 32)
2734  len = 32;
2735  memset(proc_essid, 0, 33);
2736  if (copy_from_user(proc_essid, buffer, len))
2737  return -EFAULT;
2738  essid = proc_essid;
2739  return count;
2740 }
2741 
2742 static const struct file_operations ray_cs_essid_proc_fops = {
2743  .owner = THIS_MODULE,
2744  .write = ray_cs_essid_proc_write,
2745  .llseek = noop_llseek,
2746 };
2747 
2748 static ssize_t int_proc_write(struct file *file, const char __user *buffer,
2749  size_t count, loff_t *pos)
2750 {
2751  static char proc_number[10];
2752  char *p;
2753  int nr, len;
2754 
2755  if (!count)
2756  return 0;
2757 
2758  if (count > 9)
2759  return -EINVAL;
2760  if (copy_from_user(proc_number, buffer, count))
2761  return -EFAULT;
2762  p = proc_number;
2763  nr = 0;
2764  len = count;
2765  do {
2766  unsigned int c = *p - '0';
2767  if (c > 9)
2768  return -EINVAL;
2769  nr = nr * 10 + c;
2770  p++;
2771  } while (--len);
2772  *(int *)PDE(file->f_path.dentry->d_inode)->data = nr;
2773  return count;
2774 }
2775 
2776 static const struct file_operations int_proc_fops = {
2777  .owner = THIS_MODULE,
2778  .write = int_proc_write,
2779  .llseek = noop_llseek,
2780 };
2781 #endif
2782 
2783 static const struct pcmcia_device_id ray_ids[] = {
2784  PCMCIA_DEVICE_MANF_CARD(0x01a6, 0x0000),
2785  PCMCIA_DEVICE_NULL,
2786 };
2787 
2788 MODULE_DEVICE_TABLE(pcmcia, ray_ids);
2789 
2790 static struct pcmcia_driver ray_driver = {
2791  .owner = THIS_MODULE,
2792  .name = "ray_cs",
2793  .probe = ray_probe,
2794  .remove = ray_detach,
2795  .id_table = ray_ids,
2796  .suspend = ray_suspend,
2797  .resume = ray_resume,
2798 };
2799 
2800 static int __init init_ray_cs(void)
2801 {
2802  int rc;
2803 
2804  pr_debug("%s\n", rcsid);
2805  rc = pcmcia_register_driver(&ray_driver);
2806  pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n",
2807  rc);
2808 
2809 #ifdef CONFIG_PROC_FS
2810  proc_mkdir("driver/ray_cs", NULL);
2811 
2812  proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops);
2813  proc_create("driver/ray_cs/essid", S_IWUSR, NULL, &ray_cs_essid_proc_fops);
2814  proc_create_data("driver/ray_cs/net_type", S_IWUSR, NULL, &int_proc_fops, &net_type);
2815  proc_create_data("driver/ray_cs/translate", S_IWUSR, NULL, &int_proc_fops, &translate);
2816 #endif
2817  if (translate != 0)
2818  translate = 1;
2819  return 0;
2820 } /* init_ray_cs */
2821 
2822 /*===========================================================================*/
2823 
2824 static void __exit exit_ray_cs(void)
2825 {
2826  pr_debug("ray_cs: cleanup_module\n");
2827 
2828 #ifdef CONFIG_PROC_FS
2829  remove_proc_entry("driver/ray_cs/ray_cs", NULL);
2830  remove_proc_entry("driver/ray_cs/essid", NULL);
2831  remove_proc_entry("driver/ray_cs/net_type", NULL);
2832  remove_proc_entry("driver/ray_cs/translate", NULL);
2833  remove_proc_entry("driver/ray_cs", NULL);
2834 #endif
2835 
2836  pcmcia_unregister_driver(&ray_driver);
2837 } /* exit_ray_cs */
2838 
2839 module_init(init_ray_cs);
2840 module_exit(exit_ray_cs);
2841 
2842 /*===========================================================================*/
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