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libertas: fix scheduling while atomic bug in CMD_MAC_CONTROL
[deliverable/linux.git] / drivers / net / wireless / libertas / cmd.c
1 /**
2 * This file contains the handling of command.
3 * It prepares command and sends it to firmware when it is ready.
4 */
5
6 #include <net/iw_handler.h>
7 #include "host.h"
8 #include "hostcmd.h"
9 #include "decl.h"
10 #include "defs.h"
11 #include "dev.h"
12 #include "join.h"
13 #include "wext.h"
14 #include "cmd.h"
15
16 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv);
17 static void lbs_set_cmd_ctrl_node(struct lbs_private *priv,
18 struct cmd_ctrl_node *ptempnode,
19 void *pdata_buf);
20
21
22 /**
23 * @brief Simple callback that copies response back into command
24 *
25 * @param priv A pointer to struct lbs_private structure
26 * @param extra A pointer to the original command structure for which
27 * 'resp' is a response
28 * @param resp A pointer to the command response
29 *
30 * @return 0 on success, error on failure
31 */
32 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
33 struct cmd_header *resp)
34 {
35 struct cmd_header *buf = (void *)extra;
36 uint16_t copy_len;
37
38 copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
39 memcpy(buf, resp, copy_len);
40 return 0;
41 }
42 EXPORT_SYMBOL_GPL(lbs_cmd_copyback);
43
44 /**
45 * @brief Simple callback that ignores the result. Use this if
46 * you just want to send a command to the hardware, but don't
47 * care for the result.
48 *
49 * @param priv ignored
50 * @param extra ignored
51 * @param resp ignored
52 *
53 * @return 0 for success
54 */
55 static int lbs_cmd_async_callback(struct lbs_private *priv, unsigned long extra,
56 struct cmd_header *resp)
57 {
58 return 0;
59 }
60
61
62 /**
63 * @brief Checks whether a command is allowed in Power Save mode
64 *
65 * @param command the command ID
66 * @return 1 if allowed, 0 if not allowed
67 */
68 static u8 is_command_allowed_in_ps(u16 cmd)
69 {
70 switch (cmd) {
71 case CMD_802_11_RSSI:
72 return 1;
73 default:
74 break;
75 }
76 return 0;
77 }
78
79 /**
80 * @brief Updates the hardware details like MAC address and regulatory region
81 *
82 * @param priv A pointer to struct lbs_private structure
83 *
84 * @return 0 on success, error on failure
85 */
86 int lbs_update_hw_spec(struct lbs_private *priv)
87 {
88 struct cmd_ds_get_hw_spec cmd;
89 int ret = -1;
90 u32 i;
91 DECLARE_MAC_BUF(mac);
92
93 lbs_deb_enter(LBS_DEB_CMD);
94
95 memset(&cmd, 0, sizeof(cmd));
96 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
97 memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
98 ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
99 if (ret)
100 goto out;
101
102 priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
103
104 /* The firmware release is in an interesting format: the patch
105 * level is in the most significant nibble ... so fix that: */
106 priv->fwrelease = le32_to_cpu(cmd.fwrelease);
107 priv->fwrelease = (priv->fwrelease << 8) |
108 (priv->fwrelease >> 24 & 0xff);
109
110 /* Some firmware capabilities:
111 * CF card firmware 5.0.16p0: cap 0x00000303
112 * USB dongle firmware 5.110.17p2: cap 0x00000303
113 */
114 printk("libertas: %s, fw %u.%u.%up%u, cap 0x%08x\n",
115 print_mac(mac, cmd.permanentaddr),
116 priv->fwrelease >> 24 & 0xff,
117 priv->fwrelease >> 16 & 0xff,
118 priv->fwrelease >> 8 & 0xff,
119 priv->fwrelease & 0xff,
120 priv->fwcapinfo);
121 lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
122 cmd.hwifversion, cmd.version);
123
124 /* Clamp region code to 8-bit since FW spec indicates that it should
125 * only ever be 8-bit, even though the field size is 16-bit. Some firmware
126 * returns non-zero high 8 bits here.
127 */
128 priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
129
130 for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
131 /* use the region code to search for the index */
132 if (priv->regioncode == lbs_region_code_to_index[i])
133 break;
134 }
135
136 /* if it's unidentified region code, use the default (USA) */
137 if (i >= MRVDRV_MAX_REGION_CODE) {
138 priv->regioncode = 0x10;
139 lbs_pr_info("unidentified region code; using the default (USA)\n");
140 }
141
142 if (priv->current_addr[0] == 0xff)
143 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
144
145 memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
146 if (priv->mesh_dev)
147 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
148
149 if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
150 ret = -1;
151 goto out;
152 }
153
154 if (lbs_set_universaltable(priv, 0)) {
155 ret = -1;
156 goto out;
157 }
158
159 out:
160 lbs_deb_leave(LBS_DEB_CMD);
161 return ret;
162 }
163
164 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria)
165 {
166 struct cmd_ds_host_sleep cmd_config;
167 int ret;
168
169 cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config));
170 cmd_config.criteria = cpu_to_le32(criteria);
171 cmd_config.gpio = priv->wol_gpio;
172 cmd_config.gap = priv->wol_gap;
173
174 ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
175 if (!ret) {
176 lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
177 priv->wol_criteria = criteria;
178 } else {
179 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
180 }
181
182 return ret;
183 }
184 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
185
186 static int lbs_cmd_802_11_ps_mode(struct lbs_private *priv,
187 struct cmd_ds_command *cmd,
188 u16 cmd_action)
189 {
190 struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
191
192 lbs_deb_enter(LBS_DEB_CMD);
193
194 cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
195 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
196 S_DS_GEN);
197 psm->action = cpu_to_le16(cmd_action);
198 psm->multipledtim = 0;
199 switch (cmd_action) {
200 case CMD_SUBCMD_ENTER_PS:
201 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
202
203 psm->locallisteninterval = 0;
204 psm->nullpktinterval = 0;
205 psm->multipledtim =
206 cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
207 break;
208
209 case CMD_SUBCMD_EXIT_PS:
210 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
211 break;
212
213 case CMD_SUBCMD_SLEEP_CONFIRMED:
214 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
215 break;
216
217 default:
218 break;
219 }
220
221 lbs_deb_leave(LBS_DEB_CMD);
222 return 0;
223 }
224
225 int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
226 uint16_t cmd_action, uint16_t *timeout)
227 {
228 struct cmd_ds_802_11_inactivity_timeout cmd;
229 int ret;
230
231 lbs_deb_enter(LBS_DEB_CMD);
232
233 cmd.hdr.command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
234 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
235
236 cmd.action = cpu_to_le16(cmd_action);
237
238 if (cmd_action == CMD_ACT_SET)
239 cmd.timeout = cpu_to_le16(*timeout);
240 else
241 cmd.timeout = 0;
242
243 ret = lbs_cmd_with_response(priv, CMD_802_11_INACTIVITY_TIMEOUT, &cmd);
244
245 if (!ret)
246 *timeout = le16_to_cpu(cmd.timeout);
247
248 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
249 return 0;
250 }
251
252 int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
253 struct sleep_params *sp)
254 {
255 struct cmd_ds_802_11_sleep_params cmd;
256 int ret;
257
258 lbs_deb_enter(LBS_DEB_CMD);
259
260 if (cmd_action == CMD_ACT_GET) {
261 memset(&cmd, 0, sizeof(cmd));
262 } else {
263 cmd.error = cpu_to_le16(sp->sp_error);
264 cmd.offset = cpu_to_le16(sp->sp_offset);
265 cmd.stabletime = cpu_to_le16(sp->sp_stabletime);
266 cmd.calcontrol = sp->sp_calcontrol;
267 cmd.externalsleepclk = sp->sp_extsleepclk;
268 cmd.reserved = cpu_to_le16(sp->sp_reserved);
269 }
270 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
271 cmd.action = cpu_to_le16(cmd_action);
272
273 ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
274
275 if (!ret) {
276 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
277 "calcontrol 0x%x extsleepclk 0x%x\n",
278 le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset),
279 le16_to_cpu(cmd.stabletime), cmd.calcontrol,
280 cmd.externalsleepclk);
281
282 sp->sp_error = le16_to_cpu(cmd.error);
283 sp->sp_offset = le16_to_cpu(cmd.offset);
284 sp->sp_stabletime = le16_to_cpu(cmd.stabletime);
285 sp->sp_calcontrol = cmd.calcontrol;
286 sp->sp_extsleepclk = cmd.externalsleepclk;
287 sp->sp_reserved = le16_to_cpu(cmd.reserved);
288 }
289
290 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
291 return 0;
292 }
293
294 int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
295 struct assoc_request *assoc)
296 {
297 struct cmd_ds_802_11_set_wep cmd;
298 int ret = 0;
299
300 lbs_deb_enter(LBS_DEB_CMD);
301
302 cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP);
303 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
304
305 cmd.action = cpu_to_le16(cmd_action);
306
307 if (cmd_action == CMD_ACT_ADD) {
308 int i;
309
310 /* default tx key index */
311 cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
312 CMD_WEP_KEY_INDEX_MASK);
313
314 /* Copy key types and material to host command structure */
315 for (i = 0; i < 4; i++) {
316 struct enc_key *pkey = &assoc->wep_keys[i];
317
318 switch (pkey->len) {
319 case KEY_LEN_WEP_40:
320 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
321 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
322 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
323 break;
324 case KEY_LEN_WEP_104:
325 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
326 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
327 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
328 break;
329 case 0:
330 break;
331 default:
332 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
333 i, pkey->len);
334 ret = -1;
335 goto done;
336 break;
337 }
338 }
339 } else if (cmd_action == CMD_ACT_REMOVE) {
340 /* ACT_REMOVE clears _all_ WEP keys */
341
342 /* default tx key index */
343 cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx &
344 CMD_WEP_KEY_INDEX_MASK);
345 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
346 }
347
348 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
349 done:
350 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
351 return ret;
352 }
353
354 int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
355 uint16_t *enable)
356 {
357 struct cmd_ds_802_11_enable_rsn cmd;
358 int ret;
359
360 lbs_deb_enter(LBS_DEB_CMD);
361
362 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
363 cmd.action = cpu_to_le16(cmd_action);
364
365 if (cmd_action == CMD_ACT_SET) {
366 if (*enable)
367 cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
368 else
369 cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
370 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
371 }
372
373 ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
374 if (!ret && cmd_action == CMD_ACT_GET)
375 *enable = le16_to_cpu(cmd.enable);
376
377 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
378 return ret;
379 }
380
381 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
382 struct enc_key *key)
383 {
384 lbs_deb_enter(LBS_DEB_CMD);
385
386 if (key->flags & KEY_INFO_WPA_ENABLED)
387 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
388 if (key->flags & KEY_INFO_WPA_UNICAST)
389 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
390 if (key->flags & KEY_INFO_WPA_MCAST)
391 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
392
393 keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
394 keyparam->keytypeid = cpu_to_le16(key->type);
395 keyparam->keylen = cpu_to_le16(key->len);
396 memcpy(keyparam->key, key->key, key->len);
397
398 /* Length field doesn't include the {type,length} header */
399 keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
400 lbs_deb_leave(LBS_DEB_CMD);
401 }
402
403 int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
404 struct assoc_request *assoc)
405 {
406 struct cmd_ds_802_11_key_material cmd;
407 int ret = 0;
408 int index = 0;
409
410 lbs_deb_enter(LBS_DEB_CMD);
411
412 cmd.action = cpu_to_le16(cmd_action);
413 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
414
415 if (cmd_action == CMD_ACT_GET) {
416 cmd.hdr.size = cpu_to_le16(S_DS_GEN + 2);
417 } else {
418 memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
419
420 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
421 set_one_wpa_key(&cmd.keyParamSet[index],
422 &assoc->wpa_unicast_key);
423 index++;
424 }
425
426 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
427 set_one_wpa_key(&cmd.keyParamSet[index],
428 &assoc->wpa_mcast_key);
429 index++;
430 }
431
432 /* The common header and as many keys as we included */
433 cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
434 keyParamSet[index]));
435 }
436 ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
437 /* Copy the returned key to driver private data */
438 if (!ret && cmd_action == CMD_ACT_GET) {
439 void *buf_ptr = cmd.keyParamSet;
440 void *resp_end = &(&cmd)[1];
441
442 while (buf_ptr < resp_end) {
443 struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
444 struct enc_key *key;
445 uint16_t param_set_len = le16_to_cpu(keyparam->length);
446 uint16_t key_len = le16_to_cpu(keyparam->keylen);
447 uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
448 uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
449 void *end;
450
451 end = (void *)keyparam + sizeof(keyparam->type)
452 + sizeof(keyparam->length) + param_set_len;
453
454 /* Make sure we don't access past the end of the IEs */
455 if (end > resp_end)
456 break;
457
458 if (key_flags & KEY_INFO_WPA_UNICAST)
459 key = &priv->wpa_unicast_key;
460 else if (key_flags & KEY_INFO_WPA_MCAST)
461 key = &priv->wpa_mcast_key;
462 else
463 break;
464
465 /* Copy returned key into driver */
466 memset(key, 0, sizeof(struct enc_key));
467 if (key_len > sizeof(key->key))
468 break;
469 key->type = key_type;
470 key->flags = key_flags;
471 key->len = key_len;
472 memcpy(key->key, keyparam->key, key->len);
473
474 buf_ptr = end + 1;
475 }
476 }
477
478 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
479 return ret;
480 }
481
482 static int lbs_cmd_802_11_reset(struct lbs_private *priv,
483 struct cmd_ds_command *cmd, int cmd_action)
484 {
485 struct cmd_ds_802_11_reset *reset = &cmd->params.reset;
486
487 lbs_deb_enter(LBS_DEB_CMD);
488
489 cmd->command = cpu_to_le16(CMD_802_11_RESET);
490 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset) + S_DS_GEN);
491 reset->action = cpu_to_le16(cmd_action);
492
493 lbs_deb_leave(LBS_DEB_CMD);
494 return 0;
495 }
496
497 static int lbs_cmd_802_11_get_log(struct lbs_private *priv,
498 struct cmd_ds_command *cmd)
499 {
500 lbs_deb_enter(LBS_DEB_CMD);
501 cmd->command = cpu_to_le16(CMD_802_11_GET_LOG);
502 cmd->size =
503 cpu_to_le16(sizeof(struct cmd_ds_802_11_get_log) + S_DS_GEN);
504
505 lbs_deb_leave(LBS_DEB_CMD);
506 return 0;
507 }
508
509 static int lbs_cmd_802_11_get_stat(struct lbs_private *priv,
510 struct cmd_ds_command *cmd)
511 {
512 lbs_deb_enter(LBS_DEB_CMD);
513 cmd->command = cpu_to_le16(CMD_802_11_GET_STAT);
514 cmd->size =
515 cpu_to_le16(sizeof(struct cmd_ds_802_11_get_stat) + S_DS_GEN);
516
517 lbs_deb_leave(LBS_DEB_CMD);
518 return 0;
519 }
520
521 static int lbs_cmd_802_11_snmp_mib(struct lbs_private *priv,
522 struct cmd_ds_command *cmd,
523 int cmd_action,
524 int cmd_oid, void *pdata_buf)
525 {
526 struct cmd_ds_802_11_snmp_mib *pSNMPMIB = &cmd->params.smib;
527 u8 ucTemp;
528
529 lbs_deb_enter(LBS_DEB_CMD);
530
531 lbs_deb_cmd("SNMP_CMD: cmd_oid = 0x%x\n", cmd_oid);
532
533 cmd->command = cpu_to_le16(CMD_802_11_SNMP_MIB);
534 cmd->size = cpu_to_le16(sizeof(*pSNMPMIB) + S_DS_GEN);
535
536 switch (cmd_oid) {
537 case OID_802_11_INFRASTRUCTURE_MODE:
538 {
539 u8 mode = (u8) (size_t) pdata_buf;
540 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
541 pSNMPMIB->oid = cpu_to_le16((u16) DESIRED_BSSTYPE_I);
542 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u8));
543 if (mode == IW_MODE_ADHOC) {
544 ucTemp = SNMP_MIB_VALUE_ADHOC;
545 } else {
546 /* Infra and Auto modes */
547 ucTemp = SNMP_MIB_VALUE_INFRA;
548 }
549
550 memmove(pSNMPMIB->value, &ucTemp, sizeof(u8));
551
552 break;
553 }
554
555 case OID_802_11D_ENABLE:
556 {
557 u32 ulTemp;
558
559 pSNMPMIB->oid = cpu_to_le16((u16) DOT11D_I);
560
561 if (cmd_action == CMD_ACT_SET) {
562 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
563 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
564 ulTemp = *(u32 *)pdata_buf;
565 *((__le16 *)(pSNMPMIB->value)) =
566 cpu_to_le16((u16) ulTemp);
567 }
568 break;
569 }
570
571 case OID_802_11_FRAGMENTATION_THRESHOLD:
572 {
573 u32 ulTemp;
574
575 pSNMPMIB->oid = cpu_to_le16((u16) FRAGTHRESH_I);
576
577 if (cmd_action == CMD_ACT_GET) {
578 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
579 } else if (cmd_action == CMD_ACT_SET) {
580 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
581 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
582 ulTemp = *((u32 *) pdata_buf);
583 *((__le16 *)(pSNMPMIB->value)) =
584 cpu_to_le16((u16) ulTemp);
585
586 }
587
588 break;
589 }
590
591 case OID_802_11_RTS_THRESHOLD:
592 {
593
594 u32 ulTemp;
595 pSNMPMIB->oid = cpu_to_le16(RTSTHRESH_I);
596
597 if (cmd_action == CMD_ACT_GET) {
598 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
599 } else if (cmd_action == CMD_ACT_SET) {
600 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
601 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
602 ulTemp = *((u32 *)pdata_buf);
603 *(__le16 *)(pSNMPMIB->value) =
604 cpu_to_le16((u16) ulTemp);
605
606 }
607 break;
608 }
609 case OID_802_11_TX_RETRYCOUNT:
610 pSNMPMIB->oid = cpu_to_le16((u16) SHORT_RETRYLIM_I);
611
612 if (cmd_action == CMD_ACT_GET) {
613 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
614 } else if (cmd_action == CMD_ACT_SET) {
615 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
616 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
617 *((__le16 *)(pSNMPMIB->value)) =
618 cpu_to_le16((u16) priv->txretrycount);
619 }
620
621 break;
622 default:
623 break;
624 }
625
626 lbs_deb_cmd(
627 "SNMP_CMD: command=0x%x, size=0x%x, seqnum=0x%x, result=0x%x\n",
628 le16_to_cpu(cmd->command), le16_to_cpu(cmd->size),
629 le16_to_cpu(cmd->seqnum), le16_to_cpu(cmd->result));
630
631 lbs_deb_cmd(
632 "SNMP_CMD: action 0x%x, oid 0x%x, oidsize 0x%x, value 0x%x\n",
633 le16_to_cpu(pSNMPMIB->querytype), le16_to_cpu(pSNMPMIB->oid),
634 le16_to_cpu(pSNMPMIB->bufsize),
635 le16_to_cpu(*(__le16 *) pSNMPMIB->value));
636
637 lbs_deb_leave(LBS_DEB_CMD);
638 return 0;
639 }
640
641 static int lbs_cmd_802_11_rf_tx_power(struct lbs_private *priv,
642 struct cmd_ds_command *cmd,
643 u16 cmd_action, void *pdata_buf)
644 {
645
646 struct cmd_ds_802_11_rf_tx_power *prtp = &cmd->params.txp;
647
648 lbs_deb_enter(LBS_DEB_CMD);
649
650 cmd->size =
651 cpu_to_le16((sizeof(struct cmd_ds_802_11_rf_tx_power)) + S_DS_GEN);
652 cmd->command = cpu_to_le16(CMD_802_11_RF_TX_POWER);
653 prtp->action = cpu_to_le16(cmd_action);
654
655 lbs_deb_cmd("RF_TX_POWER_CMD: size:%d cmd:0x%x Act:%d\n",
656 le16_to_cpu(cmd->size), le16_to_cpu(cmd->command),
657 le16_to_cpu(prtp->action));
658
659 switch (cmd_action) {
660 case CMD_ACT_TX_POWER_OPT_GET:
661 prtp->action = cpu_to_le16(CMD_ACT_GET);
662 prtp->currentlevel = 0;
663 break;
664
665 case CMD_ACT_TX_POWER_OPT_SET_HIGH:
666 prtp->action = cpu_to_le16(CMD_ACT_SET);
667 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_HIGH);
668 break;
669
670 case CMD_ACT_TX_POWER_OPT_SET_MID:
671 prtp->action = cpu_to_le16(CMD_ACT_SET);
672 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_MID);
673 break;
674
675 case CMD_ACT_TX_POWER_OPT_SET_LOW:
676 prtp->action = cpu_to_le16(CMD_ACT_SET);
677 prtp->currentlevel = cpu_to_le16(*((u16 *) pdata_buf));
678 break;
679 }
680
681 lbs_deb_leave(LBS_DEB_CMD);
682 return 0;
683 }
684
685 static int lbs_cmd_802_11_monitor_mode(struct lbs_private *priv,
686 struct cmd_ds_command *cmd,
687 u16 cmd_action, void *pdata_buf)
688 {
689 struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
690
691 cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
692 cmd->size =
693 cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
694 S_DS_GEN);
695
696 monitor->action = cpu_to_le16(cmd_action);
697 if (cmd_action == CMD_ACT_SET) {
698 monitor->mode =
699 cpu_to_le16((u16) (*(u32 *) pdata_buf));
700 }
701
702 return 0;
703 }
704
705 static int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
706 struct cmd_ds_command *cmd,
707 u16 cmd_action)
708 {
709 struct cmd_ds_802_11_rate_adapt_rateset
710 *rateadapt = &cmd->params.rateset;
711
712 lbs_deb_enter(LBS_DEB_CMD);
713 cmd->size =
714 cpu_to_le16(sizeof(struct cmd_ds_802_11_rate_adapt_rateset)
715 + S_DS_GEN);
716 cmd->command = cpu_to_le16(CMD_802_11_RATE_ADAPT_RATESET);
717
718 rateadapt->action = cpu_to_le16(cmd_action);
719 rateadapt->enablehwauto = cpu_to_le16(priv->enablehwauto);
720 rateadapt->bitmap = cpu_to_le16(priv->ratebitmap);
721
722 lbs_deb_leave(LBS_DEB_CMD);
723 return 0;
724 }
725
726 /**
727 * @brief Get the current data rate
728 *
729 * @param priv A pointer to struct lbs_private structure
730 *
731 * @return The data rate on success, error on failure
732 */
733 int lbs_get_data_rate(struct lbs_private *priv)
734 {
735 struct cmd_ds_802_11_data_rate cmd;
736 int ret = -1;
737
738 lbs_deb_enter(LBS_DEB_CMD);
739
740 memset(&cmd, 0, sizeof(cmd));
741 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
742 cmd.action = cpu_to_le16(CMD_ACT_GET_TX_RATE);
743
744 ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
745 if (ret)
746 goto out;
747
748 lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
749
750 ret = (int) lbs_fw_index_to_data_rate(cmd.rates[0]);
751 lbs_deb_cmd("DATA_RATE: current rate 0x%02x\n", ret);
752
753 out:
754 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
755 return ret;
756 }
757
758 /**
759 * @brief Set the data rate
760 *
761 * @param priv A pointer to struct lbs_private structure
762 * @param rate The desired data rate, or 0 to clear a locked rate
763 *
764 * @return 0 on success, error on failure
765 */
766 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
767 {
768 struct cmd_ds_802_11_data_rate cmd;
769 int ret = 0;
770
771 lbs_deb_enter(LBS_DEB_CMD);
772
773 memset(&cmd, 0, sizeof(cmd));
774 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
775
776 if (rate > 0) {
777 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
778 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
779 if (cmd.rates[0] == 0) {
780 lbs_deb_cmd("DATA_RATE: invalid requested rate of"
781 " 0x%02X\n", rate);
782 ret = 0;
783 goto out;
784 }
785 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
786 } else {
787 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
788 lbs_deb_cmd("DATA_RATE: setting auto\n");
789 }
790
791 ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
792 if (ret)
793 goto out;
794
795 lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
796
797 /* FIXME: get actual rates FW can do if this command actually returns
798 * all data rates supported.
799 */
800 priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
801 lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
802
803 out:
804 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
805 return ret;
806 }
807
808 static int lbs_cmd_mac_multicast_adr(struct lbs_private *priv,
809 struct cmd_ds_command *cmd,
810 u16 cmd_action)
811 {
812 struct cmd_ds_mac_multicast_adr *pMCastAdr = &cmd->params.madr;
813
814 lbs_deb_enter(LBS_DEB_CMD);
815 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_mac_multicast_adr) +
816 S_DS_GEN);
817 cmd->command = cpu_to_le16(CMD_MAC_MULTICAST_ADR);
818
819 lbs_deb_cmd("MULTICAST_ADR: setting %d addresses\n", pMCastAdr->nr_of_adrs);
820 pMCastAdr->action = cpu_to_le16(cmd_action);
821 pMCastAdr->nr_of_adrs =
822 cpu_to_le16((u16) priv->nr_of_multicastmacaddr);
823 memcpy(pMCastAdr->maclist, priv->multicastlist,
824 priv->nr_of_multicastmacaddr * ETH_ALEN);
825
826 lbs_deb_leave(LBS_DEB_CMD);
827 return 0;
828 }
829
830 /**
831 * @brief Get the radio channel
832 *
833 * @param priv A pointer to struct lbs_private structure
834 *
835 * @return The channel on success, error on failure
836 */
837 int lbs_get_channel(struct lbs_private *priv)
838 {
839 struct cmd_ds_802_11_rf_channel cmd;
840 int ret = 0;
841
842 lbs_deb_enter(LBS_DEB_CMD);
843
844 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
845 cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
846
847 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
848 if (ret)
849 goto out;
850
851 ret = le16_to_cpu(cmd.channel);
852 lbs_deb_cmd("current radio channel is %d\n", ret);
853
854 out:
855 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
856 return ret;
857 }
858
859 /**
860 * @brief Set the radio channel
861 *
862 * @param priv A pointer to struct lbs_private structure
863 * @param channel The desired channel, or 0 to clear a locked channel
864 *
865 * @return 0 on success, error on failure
866 */
867 int lbs_set_channel(struct lbs_private *priv, u8 channel)
868 {
869 struct cmd_ds_802_11_rf_channel cmd;
870 u8 old_channel = priv->curbssparams.channel;
871 int ret = 0;
872
873 lbs_deb_enter(LBS_DEB_CMD);
874
875 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
876 cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
877 cmd.channel = cpu_to_le16(channel);
878
879 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
880 if (ret)
881 goto out;
882
883 priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
884 lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
885 priv->curbssparams.channel);
886
887 out:
888 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
889 return ret;
890 }
891
892 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
893 struct cmd_ds_command *cmd)
894 {
895
896 lbs_deb_enter(LBS_DEB_CMD);
897 cmd->command = cpu_to_le16(CMD_802_11_RSSI);
898 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
899 cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
900
901 /* reset Beacon SNR/NF/RSSI values */
902 priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
903 priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
904 priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
905 priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
906 priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
907 priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
908
909 lbs_deb_leave(LBS_DEB_CMD);
910 return 0;
911 }
912
913 static int lbs_cmd_reg_access(struct lbs_private *priv,
914 struct cmd_ds_command *cmdptr,
915 u8 cmd_action, void *pdata_buf)
916 {
917 struct lbs_offset_value *offval;
918
919 lbs_deb_enter(LBS_DEB_CMD);
920
921 offval = (struct lbs_offset_value *)pdata_buf;
922
923 switch (le16_to_cpu(cmdptr->command)) {
924 case CMD_MAC_REG_ACCESS:
925 {
926 struct cmd_ds_mac_reg_access *macreg;
927
928 cmdptr->size =
929 cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
930 + S_DS_GEN);
931 macreg =
932 (struct cmd_ds_mac_reg_access *)&cmdptr->params.
933 macreg;
934
935 macreg->action = cpu_to_le16(cmd_action);
936 macreg->offset = cpu_to_le16((u16) offval->offset);
937 macreg->value = cpu_to_le32(offval->value);
938
939 break;
940 }
941
942 case CMD_BBP_REG_ACCESS:
943 {
944 struct cmd_ds_bbp_reg_access *bbpreg;
945
946 cmdptr->size =
947 cpu_to_le16(sizeof
948 (struct cmd_ds_bbp_reg_access)
949 + S_DS_GEN);
950 bbpreg =
951 (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
952 bbpreg;
953
954 bbpreg->action = cpu_to_le16(cmd_action);
955 bbpreg->offset = cpu_to_le16((u16) offval->offset);
956 bbpreg->value = (u8) offval->value;
957
958 break;
959 }
960
961 case CMD_RF_REG_ACCESS:
962 {
963 struct cmd_ds_rf_reg_access *rfreg;
964
965 cmdptr->size =
966 cpu_to_le16(sizeof
967 (struct cmd_ds_rf_reg_access) +
968 S_DS_GEN);
969 rfreg =
970 (struct cmd_ds_rf_reg_access *)&cmdptr->params.
971 rfreg;
972
973 rfreg->action = cpu_to_le16(cmd_action);
974 rfreg->offset = cpu_to_le16((u16) offval->offset);
975 rfreg->value = (u8) offval->value;
976
977 break;
978 }
979
980 default:
981 break;
982 }
983
984 lbs_deb_leave(LBS_DEB_CMD);
985 return 0;
986 }
987
988 static int lbs_cmd_802_11_mac_address(struct lbs_private *priv,
989 struct cmd_ds_command *cmd,
990 u16 cmd_action)
991 {
992
993 lbs_deb_enter(LBS_DEB_CMD);
994 cmd->command = cpu_to_le16(CMD_802_11_MAC_ADDRESS);
995 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_mac_address) +
996 S_DS_GEN);
997 cmd->result = 0;
998
999 cmd->params.macadd.action = cpu_to_le16(cmd_action);
1000
1001 if (cmd_action == CMD_ACT_SET) {
1002 memcpy(cmd->params.macadd.macadd,
1003 priv->current_addr, ETH_ALEN);
1004 lbs_deb_hex(LBS_DEB_CMD, "SET_CMD: MAC addr", priv->current_addr, 6);
1005 }
1006
1007 lbs_deb_leave(LBS_DEB_CMD);
1008 return 0;
1009 }
1010
1011 static int lbs_cmd_802_11_eeprom_access(struct lbs_private *priv,
1012 struct cmd_ds_command *cmd,
1013 int cmd_action, void *pdata_buf)
1014 {
1015 struct lbs_ioctl_regrdwr *ea = pdata_buf;
1016
1017 lbs_deb_enter(LBS_DEB_CMD);
1018
1019 cmd->command = cpu_to_le16(CMD_802_11_EEPROM_ACCESS);
1020 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_eeprom_access) +
1021 S_DS_GEN);
1022 cmd->result = 0;
1023
1024 cmd->params.rdeeprom.action = cpu_to_le16(ea->action);
1025 cmd->params.rdeeprom.offset = cpu_to_le16(ea->offset);
1026 cmd->params.rdeeprom.bytecount = cpu_to_le16(ea->NOB);
1027 cmd->params.rdeeprom.value = 0;
1028
1029 lbs_deb_leave(LBS_DEB_CMD);
1030 return 0;
1031 }
1032
1033 static int lbs_cmd_bt_access(struct lbs_private *priv,
1034 struct cmd_ds_command *cmd,
1035 u16 cmd_action, void *pdata_buf)
1036 {
1037 struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
1038 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1039
1040 cmd->command = cpu_to_le16(CMD_BT_ACCESS);
1041 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
1042 cmd->result = 0;
1043 bt_access->action = cpu_to_le16(cmd_action);
1044
1045 switch (cmd_action) {
1046 case CMD_ACT_BT_ACCESS_ADD:
1047 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
1048 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
1049 break;
1050 case CMD_ACT_BT_ACCESS_DEL:
1051 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
1052 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
1053 break;
1054 case CMD_ACT_BT_ACCESS_LIST:
1055 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1056 break;
1057 case CMD_ACT_BT_ACCESS_RESET:
1058 break;
1059 case CMD_ACT_BT_ACCESS_SET_INVERT:
1060 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1061 break;
1062 case CMD_ACT_BT_ACCESS_GET_INVERT:
1063 break;
1064 default:
1065 break;
1066 }
1067 lbs_deb_leave(LBS_DEB_CMD);
1068 return 0;
1069 }
1070
1071 static int lbs_cmd_fwt_access(struct lbs_private *priv,
1072 struct cmd_ds_command *cmd,
1073 u16 cmd_action, void *pdata_buf)
1074 {
1075 struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1076 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1077
1078 cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1079 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1080 cmd->result = 0;
1081
1082 if (pdata_buf)
1083 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1084 else
1085 memset(fwt_access, 0, sizeof(*fwt_access));
1086
1087 fwt_access->action = cpu_to_le16(cmd_action);
1088
1089 lbs_deb_leave(LBS_DEB_CMD);
1090 return 0;
1091 }
1092
1093 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1094 struct cmd_ds_mesh_access *cmd)
1095 {
1096 int ret;
1097
1098 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1099
1100 cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1101 cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1102 cmd->hdr.result = 0;
1103
1104 cmd->action = cpu_to_le16(cmd_action);
1105
1106 ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1107
1108 lbs_deb_leave(LBS_DEB_CMD);
1109 return ret;
1110 }
1111
1112 int lbs_mesh_config(struct lbs_private *priv, uint16_t enable, uint16_t chan)
1113 {
1114 struct cmd_ds_mesh_config cmd;
1115
1116 memset(&cmd, 0, sizeof(cmd));
1117 cmd.action = cpu_to_le16(enable);
1118 cmd.channel = cpu_to_le16(chan);
1119 cmd.type = cpu_to_le16(priv->mesh_tlv);
1120 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1121
1122 if (enable) {
1123 cmd.length = cpu_to_le16(priv->mesh_ssid_len);
1124 memcpy(cmd.data, priv->mesh_ssid, priv->mesh_ssid_len);
1125 }
1126 lbs_deb_cmd("mesh config enable %d TLV %x channel %d SSID %s\n",
1127 enable, priv->mesh_tlv, chan,
1128 escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1129 return lbs_cmd_with_response(priv, CMD_MESH_CONFIG, &cmd);
1130 }
1131
1132 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1133 struct cmd_ds_command *cmd,
1134 u16 cmd_action)
1135 {
1136 struct cmd_ds_802_11_beacon_control
1137 *bcn_ctrl = &cmd->params.bcn_ctrl;
1138
1139 lbs_deb_enter(LBS_DEB_CMD);
1140 cmd->size =
1141 cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1142 + S_DS_GEN);
1143 cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1144
1145 bcn_ctrl->action = cpu_to_le16(cmd_action);
1146 bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1147 bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1148
1149 lbs_deb_leave(LBS_DEB_CMD);
1150 return 0;
1151 }
1152
1153 static void lbs_queue_cmd(struct lbs_private *priv,
1154 struct cmd_ctrl_node *cmdnode)
1155 {
1156 unsigned long flags;
1157 int addtail = 1;
1158
1159 lbs_deb_enter(LBS_DEB_HOST);
1160
1161 if (!cmdnode) {
1162 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1163 goto done;
1164 }
1165 if (!cmdnode->cmdbuf->size) {
1166 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1167 goto done;
1168 }
1169 cmdnode->result = 0;
1170
1171 /* Exit_PS command needs to be queued in the header always. */
1172 if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1173 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1174
1175 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1176 if (priv->psstate != PS_STATE_FULL_POWER)
1177 addtail = 0;
1178 }
1179 }
1180
1181 spin_lock_irqsave(&priv->driver_lock, flags);
1182
1183 if (addtail)
1184 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1185 else
1186 list_add(&cmdnode->list, &priv->cmdpendingq);
1187
1188 spin_unlock_irqrestore(&priv->driver_lock, flags);
1189
1190 lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1191 le16_to_cpu(cmdnode->cmdbuf->command));
1192
1193 done:
1194 lbs_deb_leave(LBS_DEB_HOST);
1195 }
1196
1197 static void lbs_submit_command(struct lbs_private *priv,
1198 struct cmd_ctrl_node *cmdnode)
1199 {
1200 unsigned long flags;
1201 struct cmd_header *cmd;
1202 uint16_t cmdsize;
1203 uint16_t command;
1204 int timeo = 5 * HZ;
1205 int ret;
1206
1207 lbs_deb_enter(LBS_DEB_HOST);
1208
1209 cmd = cmdnode->cmdbuf;
1210
1211 spin_lock_irqsave(&priv->driver_lock, flags);
1212 priv->cur_cmd = cmdnode;
1213 priv->cur_cmd_retcode = 0;
1214 spin_unlock_irqrestore(&priv->driver_lock, flags);
1215
1216 cmdsize = le16_to_cpu(cmd->size);
1217 command = le16_to_cpu(cmd->command);
1218
1219 /* These commands take longer */
1220 if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1221 command == CMD_802_11_AUTHENTICATE)
1222 timeo = 10 * HZ;
1223
1224 lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d, jiffies %lu\n",
1225 command, le16_to_cpu(cmd->seqnum), cmdsize, jiffies);
1226 lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1227
1228 ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1229
1230 if (ret) {
1231 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1232 /* Let the timer kick in and retry, and potentially reset
1233 the whole thing if the condition persists */
1234 timeo = HZ;
1235 }
1236
1237 /* Setup the timer after transmit command */
1238 mod_timer(&priv->command_timer, jiffies + timeo);
1239
1240 lbs_deb_leave(LBS_DEB_HOST);
1241 }
1242
1243 /**
1244 * This function inserts command node to cmdfreeq
1245 * after cleans it. Requires priv->driver_lock held.
1246 */
1247 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1248 struct cmd_ctrl_node *cmdnode)
1249 {
1250 lbs_deb_enter(LBS_DEB_HOST);
1251
1252 if (!cmdnode)
1253 goto out;
1254
1255 cmdnode->callback = NULL;
1256 cmdnode->callback_arg = 0;
1257
1258 memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1259
1260 list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1261 out:
1262 lbs_deb_leave(LBS_DEB_HOST);
1263 }
1264
1265 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1266 struct cmd_ctrl_node *ptempcmd)
1267 {
1268 unsigned long flags;
1269
1270 spin_lock_irqsave(&priv->driver_lock, flags);
1271 __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1272 spin_unlock_irqrestore(&priv->driver_lock, flags);
1273 }
1274
1275 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1276 int result)
1277 {
1278 if (cmd == priv->cur_cmd)
1279 priv->cur_cmd_retcode = result;
1280
1281 cmd->result = result;
1282 cmd->cmdwaitqwoken = 1;
1283 wake_up_interruptible(&cmd->cmdwait_q);
1284
1285 if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1286 __lbs_cleanup_and_insert_cmd(priv, cmd);
1287 priv->cur_cmd = NULL;
1288 }
1289
1290 int lbs_set_radio_control(struct lbs_private *priv)
1291 {
1292 int ret = 0;
1293 struct cmd_ds_802_11_radio_control cmd;
1294
1295 lbs_deb_enter(LBS_DEB_CMD);
1296
1297 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1298 cmd.action = cpu_to_le16(CMD_ACT_SET);
1299
1300 switch (priv->preamble) {
1301 case CMD_TYPE_SHORT_PREAMBLE:
1302 cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
1303 break;
1304
1305 case CMD_TYPE_LONG_PREAMBLE:
1306 cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
1307 break;
1308
1309 case CMD_TYPE_AUTO_PREAMBLE:
1310 default:
1311 cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
1312 break;
1313 }
1314
1315 if (priv->radioon)
1316 cmd.control |= cpu_to_le16(TURN_ON_RF);
1317 else
1318 cmd.control &= cpu_to_le16(~TURN_ON_RF);
1319
1320 lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon,
1321 priv->preamble);
1322
1323 ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1324
1325 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1326 return ret;
1327 }
1328
1329 void lbs_set_mac_control(struct lbs_private *priv)
1330 {
1331 struct cmd_ds_mac_control cmd;
1332
1333 lbs_deb_enter(LBS_DEB_CMD);
1334
1335 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1336 cmd.action = cpu_to_le16(priv->mac_control);
1337 cmd.reserved = 0;
1338
1339 lbs_cmd_async(priv, CMD_MAC_CONTROL,
1340 &cmd.hdr, sizeof(cmd));
1341
1342 lbs_deb_leave(LBS_DEB_CMD);
1343 }
1344
1345 /**
1346 * @brief This function prepare the command before send to firmware.
1347 *
1348 * @param priv A pointer to struct lbs_private structure
1349 * @param cmd_no command number
1350 * @param cmd_action command action: GET or SET
1351 * @param wait_option wait option: wait response or not
1352 * @param cmd_oid cmd oid: treated as sub command
1353 * @param pdata_buf A pointer to informaion buffer
1354 * @return 0 or -1
1355 */
1356 int lbs_prepare_and_send_command(struct lbs_private *priv,
1357 u16 cmd_no,
1358 u16 cmd_action,
1359 u16 wait_option, u32 cmd_oid, void *pdata_buf)
1360 {
1361 int ret = 0;
1362 struct cmd_ctrl_node *cmdnode;
1363 struct cmd_ds_command *cmdptr;
1364 unsigned long flags;
1365
1366 lbs_deb_enter(LBS_DEB_HOST);
1367
1368 if (!priv) {
1369 lbs_deb_host("PREP_CMD: priv is NULL\n");
1370 ret = -1;
1371 goto done;
1372 }
1373
1374 if (priv->surpriseremoved) {
1375 lbs_deb_host("PREP_CMD: card removed\n");
1376 ret = -1;
1377 goto done;
1378 }
1379
1380 cmdnode = lbs_get_cmd_ctrl_node(priv);
1381
1382 if (cmdnode == NULL) {
1383 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1384
1385 /* Wake up main thread to execute next command */
1386 wake_up_interruptible(&priv->waitq);
1387 ret = -1;
1388 goto done;
1389 }
1390
1391 lbs_set_cmd_ctrl_node(priv, cmdnode, pdata_buf);
1392
1393 cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1394
1395 lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1396
1397 /* Set sequence number, command and INT option */
1398 priv->seqnum++;
1399 cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1400
1401 cmdptr->command = cpu_to_le16(cmd_no);
1402 cmdptr->result = 0;
1403
1404 switch (cmd_no) {
1405 case CMD_802_11_PS_MODE:
1406 ret = lbs_cmd_802_11_ps_mode(priv, cmdptr, cmd_action);
1407 break;
1408
1409 case CMD_802_11_ASSOCIATE:
1410 case CMD_802_11_REASSOCIATE:
1411 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1412 break;
1413
1414 case CMD_802_11_DEAUTHENTICATE:
1415 ret = lbs_cmd_80211_deauthenticate(priv, cmdptr);
1416 break;
1417
1418 case CMD_802_11_AD_HOC_START:
1419 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1420 break;
1421
1422 case CMD_802_11_RESET:
1423 ret = lbs_cmd_802_11_reset(priv, cmdptr, cmd_action);
1424 break;
1425
1426 case CMD_802_11_GET_LOG:
1427 ret = lbs_cmd_802_11_get_log(priv, cmdptr);
1428 break;
1429
1430 case CMD_802_11_AUTHENTICATE:
1431 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1432 break;
1433
1434 case CMD_802_11_GET_STAT:
1435 ret = lbs_cmd_802_11_get_stat(priv, cmdptr);
1436 break;
1437
1438 case CMD_802_11_SNMP_MIB:
1439 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1440 cmd_action, cmd_oid, pdata_buf);
1441 break;
1442
1443 case CMD_MAC_REG_ACCESS:
1444 case CMD_BBP_REG_ACCESS:
1445 case CMD_RF_REG_ACCESS:
1446 ret = lbs_cmd_reg_access(priv, cmdptr, cmd_action, pdata_buf);
1447 break;
1448
1449 case CMD_802_11_RF_TX_POWER:
1450 ret = lbs_cmd_802_11_rf_tx_power(priv, cmdptr,
1451 cmd_action, pdata_buf);
1452 break;
1453
1454 case CMD_802_11_RATE_ADAPT_RATESET:
1455 ret = lbs_cmd_802_11_rate_adapt_rateset(priv,
1456 cmdptr, cmd_action);
1457 break;
1458
1459 case CMD_MAC_MULTICAST_ADR:
1460 ret = lbs_cmd_mac_multicast_adr(priv, cmdptr, cmd_action);
1461 break;
1462
1463 case CMD_802_11_MONITOR_MODE:
1464 ret = lbs_cmd_802_11_monitor_mode(priv, cmdptr,
1465 cmd_action, pdata_buf);
1466 break;
1467
1468 case CMD_802_11_AD_HOC_JOIN:
1469 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1470 break;
1471
1472 case CMD_802_11_RSSI:
1473 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1474 break;
1475
1476 case CMD_802_11_AD_HOC_STOP:
1477 ret = lbs_cmd_80211_ad_hoc_stop(priv, cmdptr);
1478 break;
1479
1480 case CMD_802_11_MAC_ADDRESS:
1481 ret = lbs_cmd_802_11_mac_address(priv, cmdptr, cmd_action);
1482 break;
1483
1484 case CMD_802_11_EEPROM_ACCESS:
1485 ret = lbs_cmd_802_11_eeprom_access(priv, cmdptr,
1486 cmd_action, pdata_buf);
1487 break;
1488
1489 case CMD_802_11_SET_AFC:
1490 case CMD_802_11_GET_AFC:
1491
1492 cmdptr->command = cpu_to_le16(cmd_no);
1493 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1494 S_DS_GEN);
1495
1496 memmove(&cmdptr->params.afc,
1497 pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1498
1499 ret = 0;
1500 goto done;
1501
1502 case CMD_802_11D_DOMAIN_INFO:
1503 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1504 cmd_no, cmd_action);
1505 break;
1506
1507 case CMD_802_11_TPC_CFG:
1508 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1509 cmdptr->size =
1510 cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1511 S_DS_GEN);
1512
1513 memmove(&cmdptr->params.tpccfg,
1514 pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1515
1516 ret = 0;
1517 break;
1518 case CMD_802_11_LED_GPIO_CTRL:
1519 {
1520 struct mrvlietypes_ledgpio *gpio =
1521 (struct mrvlietypes_ledgpio*)
1522 cmdptr->params.ledgpio.data;
1523
1524 memmove(&cmdptr->params.ledgpio,
1525 pdata_buf,
1526 sizeof(struct cmd_ds_802_11_led_ctrl));
1527
1528 cmdptr->command =
1529 cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1530
1531 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1532 cmdptr->size =
1533 cpu_to_le16(le16_to_cpu(gpio->header.len)
1534 + S_DS_GEN
1535 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1536 gpio->header.len = gpio->header.len;
1537
1538 ret = 0;
1539 break;
1540 }
1541
1542 case CMD_802_11_PWR_CFG:
1543 cmdptr->command = cpu_to_le16(CMD_802_11_PWR_CFG);
1544 cmdptr->size =
1545 cpu_to_le16(sizeof(struct cmd_ds_802_11_pwr_cfg) +
1546 S_DS_GEN);
1547 memmove(&cmdptr->params.pwrcfg, pdata_buf,
1548 sizeof(struct cmd_ds_802_11_pwr_cfg));
1549
1550 ret = 0;
1551 break;
1552 case CMD_BT_ACCESS:
1553 ret = lbs_cmd_bt_access(priv, cmdptr, cmd_action, pdata_buf);
1554 break;
1555
1556 case CMD_FWT_ACCESS:
1557 ret = lbs_cmd_fwt_access(priv, cmdptr, cmd_action, pdata_buf);
1558 break;
1559
1560 case CMD_GET_TSF:
1561 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1562 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1563 S_DS_GEN);
1564 ret = 0;
1565 break;
1566 case CMD_802_11_BEACON_CTRL:
1567 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1568 break;
1569 default:
1570 lbs_deb_host("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1571 ret = -1;
1572 break;
1573 }
1574
1575 /* return error, since the command preparation failed */
1576 if (ret != 0) {
1577 lbs_deb_host("PREP_CMD: command preparation failed\n");
1578 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1579 ret = -1;
1580 goto done;
1581 }
1582
1583 cmdnode->cmdwaitqwoken = 0;
1584
1585 lbs_queue_cmd(priv, cmdnode);
1586 wake_up_interruptible(&priv->waitq);
1587
1588 if (wait_option & CMD_OPTION_WAITFORRSP) {
1589 lbs_deb_host("PREP_CMD: wait for response\n");
1590 might_sleep();
1591 wait_event_interruptible(cmdnode->cmdwait_q,
1592 cmdnode->cmdwaitqwoken);
1593 }
1594
1595 spin_lock_irqsave(&priv->driver_lock, flags);
1596 if (priv->cur_cmd_retcode) {
1597 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1598 priv->cur_cmd_retcode);
1599 priv->cur_cmd_retcode = 0;
1600 ret = -1;
1601 }
1602 spin_unlock_irqrestore(&priv->driver_lock, flags);
1603
1604 done:
1605 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1606 return ret;
1607 }
1608
1609 /**
1610 * @brief This function allocates the command buffer and link
1611 * it to command free queue.
1612 *
1613 * @param priv A pointer to struct lbs_private structure
1614 * @return 0 or -1
1615 */
1616 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1617 {
1618 int ret = 0;
1619 u32 bufsize;
1620 u32 i;
1621 struct cmd_ctrl_node *cmdarray;
1622
1623 lbs_deb_enter(LBS_DEB_HOST);
1624
1625 /* Allocate and initialize the command array */
1626 bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1627 if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1628 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1629 ret = -1;
1630 goto done;
1631 }
1632 priv->cmd_array = cmdarray;
1633
1634 /* Allocate and initialize each command buffer in the command array */
1635 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1636 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1637 if (!cmdarray[i].cmdbuf) {
1638 lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1639 ret = -1;
1640 goto done;
1641 }
1642 }
1643
1644 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1645 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1646 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1647 }
1648 ret = 0;
1649
1650 done:
1651 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1652 return ret;
1653 }
1654
1655 /**
1656 * @brief This function frees the command buffer.
1657 *
1658 * @param priv A pointer to struct lbs_private structure
1659 * @return 0 or -1
1660 */
1661 int lbs_free_cmd_buffer(struct lbs_private *priv)
1662 {
1663 struct cmd_ctrl_node *cmdarray;
1664 unsigned int i;
1665
1666 lbs_deb_enter(LBS_DEB_HOST);
1667
1668 /* need to check if cmd array is allocated or not */
1669 if (priv->cmd_array == NULL) {
1670 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1671 goto done;
1672 }
1673
1674 cmdarray = priv->cmd_array;
1675
1676 /* Release shared memory buffers */
1677 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1678 if (cmdarray[i].cmdbuf) {
1679 kfree(cmdarray[i].cmdbuf);
1680 cmdarray[i].cmdbuf = NULL;
1681 }
1682 }
1683
1684 /* Release cmd_ctrl_node */
1685 if (priv->cmd_array) {
1686 kfree(priv->cmd_array);
1687 priv->cmd_array = NULL;
1688 }
1689
1690 done:
1691 lbs_deb_leave(LBS_DEB_HOST);
1692 return 0;
1693 }
1694
1695 /**
1696 * @brief This function gets a free command node if available in
1697 * command free queue.
1698 *
1699 * @param priv A pointer to struct lbs_private structure
1700 * @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1701 */
1702 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1703 {
1704 struct cmd_ctrl_node *tempnode;
1705 unsigned long flags;
1706
1707 lbs_deb_enter(LBS_DEB_HOST);
1708
1709 if (!priv)
1710 return NULL;
1711
1712 spin_lock_irqsave(&priv->driver_lock, flags);
1713
1714 if (!list_empty(&priv->cmdfreeq)) {
1715 tempnode = list_first_entry(&priv->cmdfreeq,
1716 struct cmd_ctrl_node, list);
1717 list_del(&tempnode->list);
1718 } else {
1719 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1720 tempnode = NULL;
1721 }
1722
1723 spin_unlock_irqrestore(&priv->driver_lock, flags);
1724
1725 lbs_deb_leave(LBS_DEB_HOST);
1726 return tempnode;
1727 }
1728
1729 /**
1730 * @brief This function cleans command node.
1731 *
1732 * @param ptempnode A pointer to cmdCtrlNode structure
1733 * @return n/a
1734 */
1735
1736 /**
1737 * @brief This function initializes the command node.
1738 *
1739 * @param priv A pointer to struct lbs_private structure
1740 * @param ptempnode A pointer to cmd_ctrl_node structure
1741 * @param pdata_buf A pointer to informaion buffer
1742 * @return 0 or -1
1743 */
1744 static void lbs_set_cmd_ctrl_node(struct lbs_private *priv,
1745 struct cmd_ctrl_node *ptempnode,
1746 void *pdata_buf)
1747 {
1748 lbs_deb_enter(LBS_DEB_HOST);
1749
1750 if (!ptempnode)
1751 return;
1752
1753 ptempnode->callback = NULL;
1754 ptempnode->callback_arg = (unsigned long)pdata_buf;
1755
1756 lbs_deb_leave(LBS_DEB_HOST);
1757 }
1758
1759 /**
1760 * @brief This function executes next command in command
1761 * pending queue. It will put fimware back to PS mode
1762 * if applicable.
1763 *
1764 * @param priv A pointer to struct lbs_private structure
1765 * @return 0 or -1
1766 */
1767 int lbs_execute_next_command(struct lbs_private *priv)
1768 {
1769 struct cmd_ctrl_node *cmdnode = NULL;
1770 struct cmd_header *cmd;
1771 unsigned long flags;
1772 int ret = 0;
1773
1774 /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1775 * only caller to us is lbs_thread() and we get even when a
1776 * data packet is received */
1777 lbs_deb_enter(LBS_DEB_THREAD);
1778
1779 spin_lock_irqsave(&priv->driver_lock, flags);
1780
1781 if (priv->cur_cmd) {
1782 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1783 spin_unlock_irqrestore(&priv->driver_lock, flags);
1784 ret = -1;
1785 goto done;
1786 }
1787
1788 if (!list_empty(&priv->cmdpendingq)) {
1789 cmdnode = list_first_entry(&priv->cmdpendingq,
1790 struct cmd_ctrl_node, list);
1791 }
1792
1793 spin_unlock_irqrestore(&priv->driver_lock, flags);
1794
1795 if (cmdnode) {
1796 cmd = cmdnode->cmdbuf;
1797
1798 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1799 if ((priv->psstate == PS_STATE_SLEEP) ||
1800 (priv->psstate == PS_STATE_PRE_SLEEP)) {
1801 lbs_deb_host(
1802 "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1803 le16_to_cpu(cmd->command),
1804 priv->psstate);
1805 ret = -1;
1806 goto done;
1807 }
1808 lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1809 "0x%04x in psstate %d\n",
1810 le16_to_cpu(cmd->command), priv->psstate);
1811 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1812 /*
1813 * 1. Non-PS command:
1814 * Queue it. set needtowakeup to TRUE if current state
1815 * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1816 * 2. PS command but not Exit_PS:
1817 * Ignore it.
1818 * 3. PS command Exit_PS:
1819 * Set needtowakeup to TRUE if current state is SLEEP,
1820 * otherwise send this command down to firmware
1821 * immediately.
1822 */
1823 if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1824 /* Prepare to send Exit PS,
1825 * this non PS command will be sent later */
1826 if ((priv->psstate == PS_STATE_SLEEP)
1827 || (priv->psstate == PS_STATE_PRE_SLEEP)
1828 ) {
1829 /* w/ new scheme, it will not reach here.
1830 since it is blocked in main_thread. */
1831 priv->needtowakeup = 1;
1832 } else
1833 lbs_ps_wakeup(priv, 0);
1834
1835 ret = 0;
1836 goto done;
1837 } else {
1838 /*
1839 * PS command. Ignore it if it is not Exit_PS.
1840 * otherwise send it down immediately.
1841 */
1842 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1843
1844 lbs_deb_host(
1845 "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1846 psm->action);
1847 if (psm->action !=
1848 cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1849 lbs_deb_host(
1850 "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1851 list_del(&cmdnode->list);
1852 spin_lock_irqsave(&priv->driver_lock, flags);
1853 lbs_complete_command(priv, cmdnode, 0);
1854 spin_unlock_irqrestore(&priv->driver_lock, flags);
1855
1856 ret = 0;
1857 goto done;
1858 }
1859
1860 if ((priv->psstate == PS_STATE_SLEEP) ||
1861 (priv->psstate == PS_STATE_PRE_SLEEP)) {
1862 lbs_deb_host(
1863 "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1864 list_del(&cmdnode->list);
1865 spin_lock_irqsave(&priv->driver_lock, flags);
1866 lbs_complete_command(priv, cmdnode, 0);
1867 spin_unlock_irqrestore(&priv->driver_lock, flags);
1868 priv->needtowakeup = 1;
1869
1870 ret = 0;
1871 goto done;
1872 }
1873
1874 lbs_deb_host(
1875 "EXEC_NEXT_CMD: sending EXIT_PS\n");
1876 }
1877 }
1878 list_del(&cmdnode->list);
1879 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1880 le16_to_cpu(cmd->command));
1881 lbs_submit_command(priv, cmdnode);
1882 } else {
1883 /*
1884 * check if in power save mode, if yes, put the device back
1885 * to PS mode
1886 */
1887 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1888 (priv->psstate == PS_STATE_FULL_POWER) &&
1889 ((priv->connect_status == LBS_CONNECTED) ||
1890 (priv->mesh_connect_status == LBS_CONNECTED))) {
1891 if (priv->secinfo.WPAenabled ||
1892 priv->secinfo.WPA2enabled) {
1893 /* check for valid WPA group keys */
1894 if (priv->wpa_mcast_key.len ||
1895 priv->wpa_unicast_key.len) {
1896 lbs_deb_host(
1897 "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1898 " go back to PS_SLEEP");
1899 lbs_ps_sleep(priv, 0);
1900 }
1901 } else {
1902 lbs_deb_host(
1903 "EXEC_NEXT_CMD: cmdpendingq empty, "
1904 "go back to PS_SLEEP");
1905 lbs_ps_sleep(priv, 0);
1906 }
1907 }
1908 }
1909
1910 ret = 0;
1911 done:
1912 lbs_deb_leave(LBS_DEB_THREAD);
1913 return ret;
1914 }
1915
1916 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1917 {
1918 union iwreq_data iwrq;
1919 u8 buf[50];
1920
1921 lbs_deb_enter(LBS_DEB_WEXT);
1922
1923 memset(&iwrq, 0, sizeof(union iwreq_data));
1924 memset(buf, 0, sizeof(buf));
1925
1926 snprintf(buf, sizeof(buf) - 1, "%s", str);
1927
1928 iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1929
1930 /* Send Event to upper layer */
1931 lbs_deb_wext("event indication string %s\n", (char *)buf);
1932 lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1933 lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1934
1935 wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1936
1937 lbs_deb_leave(LBS_DEB_WEXT);
1938 }
1939
1940 static int sendconfirmsleep(struct lbs_private *priv, u8 *cmdptr, u16 size)
1941 {
1942 unsigned long flags;
1943 int ret = 0;
1944
1945 lbs_deb_enter(LBS_DEB_HOST);
1946
1947 lbs_deb_host("SEND_SLEEPC_CMD: before download, cmd size %d\n",
1948 size);
1949
1950 lbs_deb_hex(LBS_DEB_HOST, "sleep confirm command", cmdptr, size);
1951
1952 ret = priv->hw_host_to_card(priv, MVMS_CMD, cmdptr, size);
1953
1954 spin_lock_irqsave(&priv->driver_lock, flags);
1955 if (priv->intcounter || priv->currenttxskb)
1956 lbs_deb_host("SEND_SLEEPC_CMD: intcounter %d, currenttxskb %p\n",
1957 priv->intcounter, priv->currenttxskb);
1958 spin_unlock_irqrestore(&priv->driver_lock, flags);
1959
1960 if (ret) {
1961 lbs_pr_alert(
1962 "SEND_SLEEPC_CMD: Host to Card failed for Confirm Sleep\n");
1963 } else {
1964 spin_lock_irqsave(&priv->driver_lock, flags);
1965 if (!priv->intcounter) {
1966 priv->psstate = PS_STATE_SLEEP;
1967 } else {
1968 lbs_deb_host("SEND_SLEEPC_CMD: after sent, intcounter %d\n",
1969 priv->intcounter);
1970 }
1971 spin_unlock_irqrestore(&priv->driver_lock, flags);
1972
1973 lbs_deb_host("SEND_SLEEPC_CMD: sent confirm sleep\n");
1974 }
1975
1976 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1977 return ret;
1978 }
1979
1980 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1981 {
1982 lbs_deb_enter(LBS_DEB_HOST);
1983
1984 /*
1985 * PS is currently supported only in Infrastructure mode
1986 * Remove this check if it is to be supported in IBSS mode also
1987 */
1988
1989 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1990 CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1991
1992 lbs_deb_leave(LBS_DEB_HOST);
1993 }
1994
1995 /**
1996 * @brief This function sends Exit_PS command to firmware.
1997 *
1998 * @param priv A pointer to struct lbs_private structure
1999 * @param wait_option wait response or not
2000 * @return n/a
2001 */
2002 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
2003 {
2004 __le32 Localpsmode;
2005
2006 lbs_deb_enter(LBS_DEB_HOST);
2007
2008 Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
2009
2010 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
2011 CMD_SUBCMD_EXIT_PS,
2012 wait_option, 0, &Localpsmode);
2013
2014 lbs_deb_leave(LBS_DEB_HOST);
2015 }
2016
2017 /**
2018 * @brief This function checks condition and prepares to
2019 * send sleep confirm command to firmware if ok.
2020 *
2021 * @param priv A pointer to struct lbs_private structure
2022 * @param psmode Power Saving mode
2023 * @return n/a
2024 */
2025 void lbs_ps_confirm_sleep(struct lbs_private *priv, u16 psmode)
2026 {
2027 unsigned long flags =0;
2028 u8 allowed = 1;
2029
2030 lbs_deb_enter(LBS_DEB_HOST);
2031
2032 if (priv->dnld_sent) {
2033 allowed = 0;
2034 lbs_deb_host("dnld_sent was set\n");
2035 }
2036
2037 spin_lock_irqsave(&priv->driver_lock, flags);
2038 if (priv->cur_cmd) {
2039 allowed = 0;
2040 lbs_deb_host("cur_cmd was set\n");
2041 }
2042 if (priv->intcounter > 0) {
2043 allowed = 0;
2044 lbs_deb_host("intcounter %d\n", priv->intcounter);
2045 }
2046 spin_unlock_irqrestore(&priv->driver_lock, flags);
2047
2048 if (allowed) {
2049 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
2050 sendconfirmsleep(priv, (u8 *) & priv->lbs_ps_confirm_sleep,
2051 sizeof(struct PS_CMD_ConfirmSleep));
2052 } else {
2053 lbs_deb_host("sleep confirm has been delayed\n");
2054 }
2055
2056 lbs_deb_leave(LBS_DEB_HOST);
2057 }
2058
2059
2060 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
2061 uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
2062 int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2063 unsigned long callback_arg)
2064 {
2065 struct cmd_ctrl_node *cmdnode;
2066
2067 lbs_deb_enter(LBS_DEB_HOST);
2068
2069 if (priv->surpriseremoved) {
2070 lbs_deb_host("PREP_CMD: card removed\n");
2071 cmdnode = ERR_PTR(-ENOENT);
2072 goto done;
2073 }
2074
2075 cmdnode = lbs_get_cmd_ctrl_node(priv);
2076 if (cmdnode == NULL) {
2077 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
2078
2079 /* Wake up main thread to execute next command */
2080 wake_up_interruptible(&priv->waitq);
2081 cmdnode = ERR_PTR(-ENOBUFS);
2082 goto done;
2083 }
2084
2085 cmdnode->callback = callback;
2086 cmdnode->callback_arg = callback_arg;
2087
2088 /* Copy the incoming command to the buffer */
2089 memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
2090
2091 /* Set sequence number, clean result, move to buffer */
2092 priv->seqnum++;
2093 cmdnode->cmdbuf->command = cpu_to_le16(command);
2094 cmdnode->cmdbuf->size = cpu_to_le16(in_cmd_size);
2095 cmdnode->cmdbuf->seqnum = cpu_to_le16(priv->seqnum);
2096 cmdnode->cmdbuf->result = 0;
2097
2098 lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
2099
2100 cmdnode->cmdwaitqwoken = 0;
2101 lbs_queue_cmd(priv, cmdnode);
2102 wake_up_interruptible(&priv->waitq);
2103
2104 done:
2105 lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
2106 return cmdnode;
2107 }
2108
2109 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
2110 struct cmd_header *in_cmd, int in_cmd_size)
2111 {
2112 lbs_deb_enter(LBS_DEB_CMD);
2113 __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2114 lbs_cmd_async_callback, 0);
2115 lbs_deb_leave(LBS_DEB_CMD);
2116 }
2117
2118 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2119 struct cmd_header *in_cmd, int in_cmd_size,
2120 int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2121 unsigned long callback_arg)
2122 {
2123 struct cmd_ctrl_node *cmdnode;
2124 unsigned long flags;
2125 int ret = 0;
2126
2127 lbs_deb_enter(LBS_DEB_HOST);
2128
2129 cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2130 callback, callback_arg);
2131 if (IS_ERR(cmdnode)) {
2132 ret = PTR_ERR(cmdnode);
2133 goto done;
2134 }
2135
2136 might_sleep();
2137 wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2138
2139 spin_lock_irqsave(&priv->driver_lock, flags);
2140 ret = cmdnode->result;
2141 if (ret)
2142 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2143 command, ret);
2144
2145 __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2146 spin_unlock_irqrestore(&priv->driver_lock, flags);
2147
2148 done:
2149 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2150 return ret;
2151 }
2152 EXPORT_SYMBOL_GPL(__lbs_cmd);
2153
2154
Linux kernel - Deliverables
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