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libertas: move lbs_update_channel out of assoc.c
[linux-2.6/mini2440.git] / drivers / net / wireless / libertas / cmd.c
blob4a82f5114ca0a21509ca07d05417b166775b5660
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 "assoc.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
18
19 /**
20 * @brief Simple callback that copies response back into command
21 *
22 * @param priv A pointer to struct lbs_private structure
23 * @param extra A pointer to the original command structure for which
24 * 'resp' is a response
25 * @param resp A pointer to the command response
26 *
27 * @return 0 on success, error on failure
28 */
29 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
30 struct cmd_header *resp)
31 {
32 struct cmd_header *buf = (void *)extra;
33 uint16_t copy_len;
34
35 copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
36 memcpy(buf, resp, copy_len);
37 return 0;
38 }
39 EXPORT_SYMBOL_GPL(lbs_cmd_copyback);
40
41 /**
42 * @brief Simple callback that ignores the result. Use this if
43 * you just want to send a command to the hardware, but don't
44 * care for the result.
45 *
46 * @param priv ignored
47 * @param extra ignored
48 * @param resp ignored
49 *
50 * @return 0 for success
51 */
52 static int lbs_cmd_async_callback(struct lbs_private *priv, unsigned long extra,
53 struct cmd_header *resp)
54 {
55 return 0;
56 }
57
58
59 /**
60 * @brief Checks whether a command is allowed in Power Save mode
61 *
62 * @param command the command ID
63 * @return 1 if allowed, 0 if not allowed
64 */
65 static u8 is_command_allowed_in_ps(u16 cmd)
66 {
67 switch (cmd) {
68 case CMD_802_11_RSSI:
69 return 1;
70 default:
71 break;
72 }
73 return 0;
74 }
75
76 /**
77 * @brief Updates the hardware details like MAC address and regulatory region
78 *
79 * @param priv A pointer to struct lbs_private structure
80 *
81 * @return 0 on success, error on failure
82 */
83 int lbs_update_hw_spec(struct lbs_private *priv)
84 {
85 struct cmd_ds_get_hw_spec cmd;
86 int ret = -1;
87 u32 i;
88 DECLARE_MAC_BUF(mac);
89
90 lbs_deb_enter(LBS_DEB_CMD);
91
92 memset(&cmd, 0, sizeof(cmd));
93 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
94 memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
95 ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
96 if (ret)
97 goto out;
98
99 priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
100
101 /* The firmware release is in an interesting format: the patch
102 * level is in the most significant nibble ... so fix that: */
103 priv->fwrelease = le32_to_cpu(cmd.fwrelease);
104 priv->fwrelease = (priv->fwrelease << 8) |
105 (priv->fwrelease >> 24 & 0xff);
106
107 /* Some firmware capabilities:
108 * CF card firmware 5.0.16p0: cap 0x00000303
109 * USB dongle firmware 5.110.17p2: cap 0x00000303
110 */
111 printk("libertas: %s, fw %u.%u.%up%u, cap 0x%08x\n",
112 print_mac(mac, cmd.permanentaddr),
113 priv->fwrelease >> 24 & 0xff,
114 priv->fwrelease >> 16 & 0xff,
115 priv->fwrelease >> 8 & 0xff,
116 priv->fwrelease & 0xff,
117 priv->fwcapinfo);
118 lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
119 cmd.hwifversion, cmd.version);
120
121 /* Clamp region code to 8-bit since FW spec indicates that it should
122 * only ever be 8-bit, even though the field size is 16-bit. Some firmware
123 * returns non-zero high 8 bits here.
124 */
125 priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
126
127 for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
128 /* use the region code to search for the index */
129 if (priv->regioncode == lbs_region_code_to_index[i])
130 break;
131 }
132
133 /* if it's unidentified region code, use the default (USA) */
134 if (i >= MRVDRV_MAX_REGION_CODE) {
135 priv->regioncode = 0x10;
136 lbs_pr_info("unidentified region code; using the default (USA)\n");
137 }
138
139 if (priv->current_addr[0] == 0xff)
140 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
141
142 memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
143 if (priv->mesh_dev)
144 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
145
146 if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
147 ret = -1;
148 goto out;
149 }
150
151 if (lbs_set_universaltable(priv, 0)) {
152 ret = -1;
153 goto out;
154 }
155
156 out:
157 lbs_deb_leave(LBS_DEB_CMD);
158 return ret;
159 }
160
161 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria)
162 {
163 struct cmd_ds_host_sleep cmd_config;
164 int ret;
165
166 cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config));
167 cmd_config.criteria = cpu_to_le32(criteria);
168 cmd_config.gpio = priv->wol_gpio;
169 cmd_config.gap = priv->wol_gap;
170
171 ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
172 if (!ret) {
173 lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
174 priv->wol_criteria = criteria;
175 } else {
176 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
177 }
178
179 return ret;
180 }
181 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
182
183 static int lbs_cmd_802_11_ps_mode(struct cmd_ds_command *cmd,
184 u16 cmd_action)
185 {
186 struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
187
188 lbs_deb_enter(LBS_DEB_CMD);
189
190 cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
191 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
192 S_DS_GEN);
193 psm->action = cpu_to_le16(cmd_action);
194 psm->multipledtim = 0;
195 switch (cmd_action) {
196 case CMD_SUBCMD_ENTER_PS:
197 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
198
199 psm->locallisteninterval = 0;
200 psm->nullpktinterval = 0;
201 psm->multipledtim =
202 cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
203 break;
204
205 case CMD_SUBCMD_EXIT_PS:
206 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
207 break;
208
209 case CMD_SUBCMD_SLEEP_CONFIRMED:
210 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
211 break;
212
213 default:
214 break;
215 }
216
217 lbs_deb_leave(LBS_DEB_CMD);
218 return 0;
219 }
220
221 int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
222 uint16_t cmd_action, uint16_t *timeout)
223 {
224 struct cmd_ds_802_11_inactivity_timeout cmd;
225 int ret;
226
227 lbs_deb_enter(LBS_DEB_CMD);
228
229 cmd.hdr.command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
230 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
231
232 cmd.action = cpu_to_le16(cmd_action);
233
234 if (cmd_action == CMD_ACT_SET)
235 cmd.timeout = cpu_to_le16(*timeout);
236 else
237 cmd.timeout = 0;
238
239 ret = lbs_cmd_with_response(priv, CMD_802_11_INACTIVITY_TIMEOUT, &cmd);
240
241 if (!ret)
242 *timeout = le16_to_cpu(cmd.timeout);
243
244 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
245 return 0;
246 }
247
248 int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
249 struct sleep_params *sp)
250 {
251 struct cmd_ds_802_11_sleep_params cmd;
252 int ret;
253
254 lbs_deb_enter(LBS_DEB_CMD);
255
256 if (cmd_action == CMD_ACT_GET) {
257 memset(&cmd, 0, sizeof(cmd));
258 } else {
259 cmd.error = cpu_to_le16(sp->sp_error);
260 cmd.offset = cpu_to_le16(sp->sp_offset);
261 cmd.stabletime = cpu_to_le16(sp->sp_stabletime);
262 cmd.calcontrol = sp->sp_calcontrol;
263 cmd.externalsleepclk = sp->sp_extsleepclk;
264 cmd.reserved = cpu_to_le16(sp->sp_reserved);
265 }
266 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
267 cmd.action = cpu_to_le16(cmd_action);
268
269 ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
270
271 if (!ret) {
272 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
273 "calcontrol 0x%x extsleepclk 0x%x\n",
274 le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset),
275 le16_to_cpu(cmd.stabletime), cmd.calcontrol,
276 cmd.externalsleepclk);
277
278 sp->sp_error = le16_to_cpu(cmd.error);
279 sp->sp_offset = le16_to_cpu(cmd.offset);
280 sp->sp_stabletime = le16_to_cpu(cmd.stabletime);
281 sp->sp_calcontrol = cmd.calcontrol;
282 sp->sp_extsleepclk = cmd.externalsleepclk;
283 sp->sp_reserved = le16_to_cpu(cmd.reserved);
284 }
285
286 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
287 return 0;
288 }
289
290 int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
291 struct assoc_request *assoc)
292 {
293 struct cmd_ds_802_11_set_wep cmd;
294 int ret = 0;
295
296 lbs_deb_enter(LBS_DEB_CMD);
297
298 cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP);
299 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
300
301 cmd.action = cpu_to_le16(cmd_action);
302
303 if (cmd_action == CMD_ACT_ADD) {
304 int i;
305
306 /* default tx key index */
307 cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
308 CMD_WEP_KEY_INDEX_MASK);
309
310 /* Copy key types and material to host command structure */
311 for (i = 0; i < 4; i++) {
312 struct enc_key *pkey = &assoc->wep_keys[i];
313
314 switch (pkey->len) {
315 case KEY_LEN_WEP_40:
316 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
317 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
318 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
319 break;
320 case KEY_LEN_WEP_104:
321 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
322 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
323 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
324 break;
325 case 0:
326 break;
327 default:
328 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
329 i, pkey->len);
330 ret = -1;
331 goto done;
332 break;
333 }
334 }
335 } else if (cmd_action == CMD_ACT_REMOVE) {
336 /* ACT_REMOVE clears _all_ WEP keys */
337
338 /* default tx key index */
339 cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx &
340 CMD_WEP_KEY_INDEX_MASK);
341 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
342 }
343
344 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
345 done:
346 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
347 return ret;
348 }
349
350 int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
351 uint16_t *enable)
352 {
353 struct cmd_ds_802_11_enable_rsn cmd;
354 int ret;
355
356 lbs_deb_enter(LBS_DEB_CMD);
357
358 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
359 cmd.action = cpu_to_le16(cmd_action);
360
361 if (cmd_action == CMD_ACT_SET) {
362 if (*enable)
363 cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
364 else
365 cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
366 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
367 }
368
369 ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
370 if (!ret && cmd_action == CMD_ACT_GET)
371 *enable = le16_to_cpu(cmd.enable);
372
373 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
374 return ret;
375 }
376
377 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
378 struct enc_key *key)
379 {
380 lbs_deb_enter(LBS_DEB_CMD);
381
382 if (key->flags & KEY_INFO_WPA_ENABLED)
383 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
384 if (key->flags & KEY_INFO_WPA_UNICAST)
385 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
386 if (key->flags & KEY_INFO_WPA_MCAST)
387 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
388
389 keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
390 keyparam->keytypeid = cpu_to_le16(key->type);
391 keyparam->keylen = cpu_to_le16(key->len);
392 memcpy(keyparam->key, key->key, key->len);
393
394 /* Length field doesn't include the {type,length} header */
395 keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
396 lbs_deb_leave(LBS_DEB_CMD);
397 }
398
399 int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
400 struct assoc_request *assoc)
401 {
402 struct cmd_ds_802_11_key_material cmd;
403 int ret = 0;
404 int index = 0;
405
406 lbs_deb_enter(LBS_DEB_CMD);
407
408 cmd.action = cpu_to_le16(cmd_action);
409 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
410
411 if (cmd_action == CMD_ACT_GET) {
412 cmd.hdr.size = cpu_to_le16(S_DS_GEN + 2);
413 } else {
414 memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
415
416 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
417 set_one_wpa_key(&cmd.keyParamSet[index],
418 &assoc->wpa_unicast_key);
419 index++;
420 }
421
422 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
423 set_one_wpa_key(&cmd.keyParamSet[index],
424 &assoc->wpa_mcast_key);
425 index++;
426 }
427
428 /* The common header and as many keys as we included */
429 cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
430 keyParamSet[index]));
431 }
432 ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
433 /* Copy the returned key to driver private data */
434 if (!ret && cmd_action == CMD_ACT_GET) {
435 void *buf_ptr = cmd.keyParamSet;
436 void *resp_end = &(&cmd)[1];
437
438 while (buf_ptr < resp_end) {
439 struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
440 struct enc_key *key;
441 uint16_t param_set_len = le16_to_cpu(keyparam->length);
442 uint16_t key_len = le16_to_cpu(keyparam->keylen);
443 uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
444 uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
445 void *end;
446
447 end = (void *)keyparam + sizeof(keyparam->type)
448 + sizeof(keyparam->length) + param_set_len;
449
450 /* Make sure we don't access past the end of the IEs */
451 if (end > resp_end)
452 break;
453
454 if (key_flags & KEY_INFO_WPA_UNICAST)
455 key = &priv->wpa_unicast_key;
456 else if (key_flags & KEY_INFO_WPA_MCAST)
457 key = &priv->wpa_mcast_key;
458 else
459 break;
460
461 /* Copy returned key into driver */
462 memset(key, 0, sizeof(struct enc_key));
463 if (key_len > sizeof(key->key))
464 break;
465 key->type = key_type;
466 key->flags = key_flags;
467 key->len = key_len;
468 memcpy(key->key, keyparam->key, key->len);
469
470 buf_ptr = end + 1;
471 }
472 }
473
474 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
475 return ret;
476 }
477
478 static int lbs_cmd_802_11_reset(struct cmd_ds_command *cmd, int cmd_action)
479 {
480 struct cmd_ds_802_11_reset *reset = &cmd->params.reset;
481
482 lbs_deb_enter(LBS_DEB_CMD);
483
484 cmd->command = cpu_to_le16(CMD_802_11_RESET);
485 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset) + S_DS_GEN);
486 reset->action = cpu_to_le16(cmd_action);
487
488 lbs_deb_leave(LBS_DEB_CMD);
489 return 0;
490 }
491
492 static int lbs_cmd_802_11_snmp_mib(struct lbs_private *priv,
493 struct cmd_ds_command *cmd,
494 int cmd_action,
495 int cmd_oid, void *pdata_buf)
496 {
497 struct cmd_ds_802_11_snmp_mib *pSNMPMIB = &cmd->params.smib;
498 u8 ucTemp;
499
500 lbs_deb_enter(LBS_DEB_CMD);
501
502 lbs_deb_cmd("SNMP_CMD: cmd_oid = 0x%x\n", cmd_oid);
503
504 cmd->command = cpu_to_le16(CMD_802_11_SNMP_MIB);
505 cmd->size = cpu_to_le16(sizeof(*pSNMPMIB) + S_DS_GEN);
506
507 switch (cmd_oid) {
508 case OID_802_11_INFRASTRUCTURE_MODE:
509 {
510 u8 mode = (u8) (size_t) pdata_buf;
511 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
512 pSNMPMIB->oid = cpu_to_le16((u16) DESIRED_BSSTYPE_I);
513 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u8));
514 if (mode == IW_MODE_ADHOC) {
515 ucTemp = SNMP_MIB_VALUE_ADHOC;
516 } else {
517 /* Infra and Auto modes */
518 ucTemp = SNMP_MIB_VALUE_INFRA;
519 }
520
521 memmove(pSNMPMIB->value, &ucTemp, sizeof(u8));
522
523 break;
524 }
525
526 case OID_802_11D_ENABLE:
527 {
528 u32 ulTemp;
529
530 pSNMPMIB->oid = cpu_to_le16((u16) DOT11D_I);
531
532 if (cmd_action == CMD_ACT_SET) {
533 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
534 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
535 ulTemp = *(u32 *)pdata_buf;
536 *((__le16 *)(pSNMPMIB->value)) =
537 cpu_to_le16((u16) ulTemp);
538 }
539 break;
540 }
541
542 case OID_802_11_FRAGMENTATION_THRESHOLD:
543 {
544 u32 ulTemp;
545
546 pSNMPMIB->oid = cpu_to_le16((u16) FRAGTHRESH_I);
547
548 if (cmd_action == CMD_ACT_GET) {
549 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
550 } else if (cmd_action == CMD_ACT_SET) {
551 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
552 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
553 ulTemp = *((u32 *) pdata_buf);
554 *((__le16 *)(pSNMPMIB->value)) =
555 cpu_to_le16((u16) ulTemp);
556
557 }
558
559 break;
560 }
561
562 case OID_802_11_RTS_THRESHOLD:
563 {
564
565 u32 ulTemp;
566 pSNMPMIB->oid = cpu_to_le16(RTSTHRESH_I);
567
568 if (cmd_action == CMD_ACT_GET) {
569 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
570 } else if (cmd_action == CMD_ACT_SET) {
571 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
572 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
573 ulTemp = *((u32 *)pdata_buf);
574 *(__le16 *)(pSNMPMIB->value) =
575 cpu_to_le16((u16) ulTemp);
576
577 }
578 break;
579 }
580 case OID_802_11_TX_RETRYCOUNT:
581 pSNMPMIB->oid = cpu_to_le16((u16) SHORT_RETRYLIM_I);
582
583 if (cmd_action == CMD_ACT_GET) {
584 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
585 } else if (cmd_action == CMD_ACT_SET) {
586 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
587 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
588 *((__le16 *)(pSNMPMIB->value)) =
589 cpu_to_le16((u16) priv->txretrycount);
590 }
591
592 break;
593 default:
594 break;
595 }
596
597 lbs_deb_cmd(
598 "SNMP_CMD: command=0x%x, size=0x%x, seqnum=0x%x, result=0x%x\n",
599 le16_to_cpu(cmd->command), le16_to_cpu(cmd->size),
600 le16_to_cpu(cmd->seqnum), le16_to_cpu(cmd->result));
601
602 lbs_deb_cmd(
603 "SNMP_CMD: action 0x%x, oid 0x%x, oidsize 0x%x, value 0x%x\n",
604 le16_to_cpu(pSNMPMIB->querytype), le16_to_cpu(pSNMPMIB->oid),
605 le16_to_cpu(pSNMPMIB->bufsize),
606 le16_to_cpu(*(__le16 *) pSNMPMIB->value));
607
608 lbs_deb_leave(LBS_DEB_CMD);
609 return 0;
610 }
611
612 static int lbs_cmd_802_11_rf_tx_power(struct cmd_ds_command *cmd,
613 u16 cmd_action, void *pdata_buf)
614 {
615
616 struct cmd_ds_802_11_rf_tx_power *prtp = &cmd->params.txp;
617
618 lbs_deb_enter(LBS_DEB_CMD);
619
620 cmd->size =
621 cpu_to_le16((sizeof(struct cmd_ds_802_11_rf_tx_power)) + S_DS_GEN);
622 cmd->command = cpu_to_le16(CMD_802_11_RF_TX_POWER);
623 prtp->action = cpu_to_le16(cmd_action);
624
625 lbs_deb_cmd("RF_TX_POWER_CMD: size:%d cmd:0x%x Act:%d\n",
626 le16_to_cpu(cmd->size), le16_to_cpu(cmd->command),
627 le16_to_cpu(prtp->action));
628
629 switch (cmd_action) {
630 case CMD_ACT_TX_POWER_OPT_GET:
631 prtp->action = cpu_to_le16(CMD_ACT_GET);
632 prtp->currentlevel = 0;
633 break;
634
635 case CMD_ACT_TX_POWER_OPT_SET_HIGH:
636 prtp->action = cpu_to_le16(CMD_ACT_SET);
637 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_HIGH);
638 break;
639
640 case CMD_ACT_TX_POWER_OPT_SET_MID:
641 prtp->action = cpu_to_le16(CMD_ACT_SET);
642 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_MID);
643 break;
644
645 case CMD_ACT_TX_POWER_OPT_SET_LOW:
646 prtp->action = cpu_to_le16(CMD_ACT_SET);
647 prtp->currentlevel = cpu_to_le16(*((u16 *) pdata_buf));
648 break;
649 }
650
651 lbs_deb_leave(LBS_DEB_CMD);
652 return 0;
653 }
654
655 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
656 u16 cmd_action, void *pdata_buf)
657 {
658 struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
659
660 cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
661 cmd->size =
662 cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
663 S_DS_GEN);
664
665 monitor->action = cpu_to_le16(cmd_action);
666 if (cmd_action == CMD_ACT_SET) {
667 monitor->mode =
668 cpu_to_le16((u16) (*(u32 *) pdata_buf));
669 }
670
671 return 0;
672 }
673
674 static int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
675 struct cmd_ds_command *cmd,
676 u16 cmd_action)
677 {
678 struct cmd_ds_802_11_rate_adapt_rateset
679 *rateadapt = &cmd->params.rateset;
680
681 lbs_deb_enter(LBS_DEB_CMD);
682 cmd->size =
683 cpu_to_le16(sizeof(struct cmd_ds_802_11_rate_adapt_rateset)
684 + S_DS_GEN);
685 cmd->command = cpu_to_le16(CMD_802_11_RATE_ADAPT_RATESET);
686
687 rateadapt->action = cpu_to_le16(cmd_action);
688 rateadapt->enablehwauto = cpu_to_le16(priv->enablehwauto);
689 rateadapt->bitmap = cpu_to_le16(priv->ratebitmap);
690
691 lbs_deb_leave(LBS_DEB_CMD);
692 return 0;
693 }
694
695 /**
696 * @brief Get the current data rate
697 *
698 * @param priv A pointer to struct lbs_private structure
699 *
700 * @return The data rate on success, error on failure
701 */
702 int lbs_get_data_rate(struct lbs_private *priv)
703 {
704 struct cmd_ds_802_11_data_rate cmd;
705 int ret = -1;
706
707 lbs_deb_enter(LBS_DEB_CMD);
708
709 memset(&cmd, 0, sizeof(cmd));
710 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
711 cmd.action = cpu_to_le16(CMD_ACT_GET_TX_RATE);
712
713 ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
714 if (ret)
715 goto out;
716
717 lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
718
719 ret = (int) lbs_fw_index_to_data_rate(cmd.rates[0]);
720 lbs_deb_cmd("DATA_RATE: current rate 0x%02x\n", ret);
721
722 out:
723 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
724 return ret;
725 }
726
727 /**
728 * @brief Set the data rate
729 *
730 * @param priv A pointer to struct lbs_private structure
731 * @param rate The desired data rate, or 0 to clear a locked rate
732 *
733 * @return 0 on success, error on failure
734 */
735 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
736 {
737 struct cmd_ds_802_11_data_rate cmd;
738 int ret = 0;
739
740 lbs_deb_enter(LBS_DEB_CMD);
741
742 memset(&cmd, 0, sizeof(cmd));
743 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
744
745 if (rate > 0) {
746 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
747 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
748 if (cmd.rates[0] == 0) {
749 lbs_deb_cmd("DATA_RATE: invalid requested rate of"
750 " 0x%02X\n", rate);
751 ret = 0;
752 goto out;
753 }
754 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
755 } else {
756 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
757 lbs_deb_cmd("DATA_RATE: setting auto\n");
758 }
759
760 ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
761 if (ret)
762 goto out;
763
764 lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
765
766 /* FIXME: get actual rates FW can do if this command actually returns
767 * all data rates supported.
768 */
769 priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
770 lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
771
772 out:
773 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
774 return ret;
775 }
776
777 static int lbs_cmd_mac_multicast_adr(struct lbs_private *priv,
778 struct cmd_ds_command *cmd,
779 u16 cmd_action)
780 {
781 struct cmd_ds_mac_multicast_adr *pMCastAdr = &cmd->params.madr;
782
783 lbs_deb_enter(LBS_DEB_CMD);
784 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_mac_multicast_adr) +
785 S_DS_GEN);
786 cmd->command = cpu_to_le16(CMD_MAC_MULTICAST_ADR);
787
788 lbs_deb_cmd("MULTICAST_ADR: setting %d addresses\n", pMCastAdr->nr_of_adrs);
789 pMCastAdr->action = cpu_to_le16(cmd_action);
790 pMCastAdr->nr_of_adrs =
791 cpu_to_le16((u16) priv->nr_of_multicastmacaddr);
792 memcpy(pMCastAdr->maclist, priv->multicastlist,
793 priv->nr_of_multicastmacaddr * ETH_ALEN);
794
795 lbs_deb_leave(LBS_DEB_CMD);
796 return 0;
797 }
798
799 /**
800 * @brief Get the radio channel
801 *
802 * @param priv A pointer to struct lbs_private structure
803 *
804 * @return The channel on success, error on failure
805 */
806 int lbs_get_channel(struct lbs_private *priv)
807 {
808 struct cmd_ds_802_11_rf_channel cmd;
809 int ret = 0;
810
811 lbs_deb_enter(LBS_DEB_CMD);
812
813 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
814 cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
815
816 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
817 if (ret)
818 goto out;
819
820 ret = le16_to_cpu(cmd.channel);
821 lbs_deb_cmd("current radio channel is %d\n", ret);
822
823 out:
824 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
825 return ret;
826 }
827
828 int lbs_update_channel(struct lbs_private *priv)
829 {
830 int ret;
831
832 /* the channel in f/w could be out of sync; get the current channel */
833 lbs_deb_enter(LBS_DEB_ASSOC);
834
835 ret = lbs_get_channel(priv);
836 if (ret > 0) {
837 priv->curbssparams.channel = ret;
838 ret = 0;
839 }
840 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
841 return ret;
842 }
843
844 /**
845 * @brief Set the radio channel
846 *
847 * @param priv A pointer to struct lbs_private structure
848 * @param channel The desired channel, or 0 to clear a locked channel
849 *
850 * @return 0 on success, error on failure
851 */
852 int lbs_set_channel(struct lbs_private *priv, u8 channel)
853 {
854 struct cmd_ds_802_11_rf_channel cmd;
855 u8 old_channel = priv->curbssparams.channel;
856 int ret = 0;
857
858 lbs_deb_enter(LBS_DEB_CMD);
859
860 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
861 cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
862 cmd.channel = cpu_to_le16(channel);
863
864 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
865 if (ret)
866 goto out;
867
868 priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
869 lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
870 priv->curbssparams.channel);
871
872 out:
873 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
874 return ret;
875 }
876
877 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
878 struct cmd_ds_command *cmd)
879 {
880
881 lbs_deb_enter(LBS_DEB_CMD);
882 cmd->command = cpu_to_le16(CMD_802_11_RSSI);
883 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
884 cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
885
886 /* reset Beacon SNR/NF/RSSI values */
887 priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
888 priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
889 priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
890 priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
891 priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
892 priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
893
894 lbs_deb_leave(LBS_DEB_CMD);
895 return 0;
896 }
897
898 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
899 u8 cmd_action, void *pdata_buf)
900 {
901 struct lbs_offset_value *offval;
902
903 lbs_deb_enter(LBS_DEB_CMD);
904
905 offval = (struct lbs_offset_value *)pdata_buf;
906
907 switch (le16_to_cpu(cmdptr->command)) {
908 case CMD_MAC_REG_ACCESS:
909 {
910 struct cmd_ds_mac_reg_access *macreg;
911
912 cmdptr->size =
913 cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
914 + S_DS_GEN);
915 macreg =
916 (struct cmd_ds_mac_reg_access *)&cmdptr->params.
917 macreg;
918
919 macreg->action = cpu_to_le16(cmd_action);
920 macreg->offset = cpu_to_le16((u16) offval->offset);
921 macreg->value = cpu_to_le32(offval->value);
922
923 break;
924 }
925
926 case CMD_BBP_REG_ACCESS:
927 {
928 struct cmd_ds_bbp_reg_access *bbpreg;
929
930 cmdptr->size =
931 cpu_to_le16(sizeof
932 (struct cmd_ds_bbp_reg_access)
933 + S_DS_GEN);
934 bbpreg =
935 (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
936 bbpreg;
937
938 bbpreg->action = cpu_to_le16(cmd_action);
939 bbpreg->offset = cpu_to_le16((u16) offval->offset);
940 bbpreg->value = (u8) offval->value;
941
942 break;
943 }
944
945 case CMD_RF_REG_ACCESS:
946 {
947 struct cmd_ds_rf_reg_access *rfreg;
948
949 cmdptr->size =
950 cpu_to_le16(sizeof
951 (struct cmd_ds_rf_reg_access) +
952 S_DS_GEN);
953 rfreg =
954 (struct cmd_ds_rf_reg_access *)&cmdptr->params.
955 rfreg;
956
957 rfreg->action = cpu_to_le16(cmd_action);
958 rfreg->offset = cpu_to_le16((u16) offval->offset);
959 rfreg->value = (u8) offval->value;
960
961 break;
962 }
963
964 default:
965 break;
966 }
967
968 lbs_deb_leave(LBS_DEB_CMD);
969 return 0;
970 }
971
972 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
973 u16 cmd_action, void *pdata_buf)
974 {
975 struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
976 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
977
978 cmd->command = cpu_to_le16(CMD_BT_ACCESS);
979 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
980 cmd->result = 0;
981 bt_access->action = cpu_to_le16(cmd_action);
982
983 switch (cmd_action) {
984 case CMD_ACT_BT_ACCESS_ADD:
985 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
986 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
987 break;
988 case CMD_ACT_BT_ACCESS_DEL:
989 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
990 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
991 break;
992 case CMD_ACT_BT_ACCESS_LIST:
993 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
994 break;
995 case CMD_ACT_BT_ACCESS_RESET:
996 break;
997 case CMD_ACT_BT_ACCESS_SET_INVERT:
998 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
999 break;
1000 case CMD_ACT_BT_ACCESS_GET_INVERT:
1001 break;
1002 default:
1003 break;
1004 }
1005 lbs_deb_leave(LBS_DEB_CMD);
1006 return 0;
1007 }
1008
1009 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
1010 u16 cmd_action, void *pdata_buf)
1011 {
1012 struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1013 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1014
1015 cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1016 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1017 cmd->result = 0;
1018
1019 if (pdata_buf)
1020 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1021 else
1022 memset(fwt_access, 0, sizeof(*fwt_access));
1023
1024 fwt_access->action = cpu_to_le16(cmd_action);
1025
1026 lbs_deb_leave(LBS_DEB_CMD);
1027 return 0;
1028 }
1029
1030 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1031 struct cmd_ds_mesh_access *cmd)
1032 {
1033 int ret;
1034
1035 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1036
1037 cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1038 cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1039 cmd->hdr.result = 0;
1040
1041 cmd->action = cpu_to_le16(cmd_action);
1042
1043 ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1044
1045 lbs_deb_leave(LBS_DEB_CMD);
1046 return ret;
1047 }
1048
1049 int lbs_mesh_config(struct lbs_private *priv, uint16_t enable, uint16_t chan)
1050 {
1051 struct cmd_ds_mesh_config cmd;
1052
1053 memset(&cmd, 0, sizeof(cmd));
1054 cmd.action = cpu_to_le16(enable);
1055 cmd.channel = cpu_to_le16(chan);
1056 cmd.type = cpu_to_le16(priv->mesh_tlv);
1057 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1058
1059 if (enable) {
1060 cmd.length = cpu_to_le16(priv->mesh_ssid_len);
1061 memcpy(cmd.data, priv->mesh_ssid, priv->mesh_ssid_len);
1062 }
1063 lbs_deb_cmd("mesh config enable %d TLV %x channel %d SSID %s\n",
1064 enable, priv->mesh_tlv, chan,
1065 escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1066 return lbs_cmd_with_response(priv, CMD_MESH_CONFIG, &cmd);
1067 }
1068
1069 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1070 struct cmd_ds_command *cmd,
1071 u16 cmd_action)
1072 {
1073 struct cmd_ds_802_11_beacon_control
1074 *bcn_ctrl = &cmd->params.bcn_ctrl;
1075
1076 lbs_deb_enter(LBS_DEB_CMD);
1077 cmd->size =
1078 cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1079 + S_DS_GEN);
1080 cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1081
1082 bcn_ctrl->action = cpu_to_le16(cmd_action);
1083 bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1084 bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1085
1086 lbs_deb_leave(LBS_DEB_CMD);
1087 return 0;
1088 }
1089
1090 static void lbs_queue_cmd(struct lbs_private *priv,
1091 struct cmd_ctrl_node *cmdnode)
1092 {
1093 unsigned long flags;
1094 int addtail = 1;
1095
1096 lbs_deb_enter(LBS_DEB_HOST);
1097
1098 if (!cmdnode) {
1099 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1100 goto done;
1101 }
1102 if (!cmdnode->cmdbuf->size) {
1103 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1104 goto done;
1105 }
1106 cmdnode->result = 0;
1107
1108 /* Exit_PS command needs to be queued in the header always. */
1109 if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1110 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1111
1112 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1113 if (priv->psstate != PS_STATE_FULL_POWER)
1114 addtail = 0;
1115 }
1116 }
1117
1118 spin_lock_irqsave(&priv->driver_lock, flags);
1119
1120 if (addtail)
1121 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1122 else
1123 list_add(&cmdnode->list, &priv->cmdpendingq);
1124
1125 spin_unlock_irqrestore(&priv->driver_lock, flags);
1126
1127 lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1128 le16_to_cpu(cmdnode->cmdbuf->command));
1129
1130 done:
1131 lbs_deb_leave(LBS_DEB_HOST);
1132 }
1133
1134 static void lbs_submit_command(struct lbs_private *priv,
1135 struct cmd_ctrl_node *cmdnode)
1136 {
1137 unsigned long flags;
1138 struct cmd_header *cmd;
1139 uint16_t cmdsize;
1140 uint16_t command;
1141 int timeo = 5 * HZ;
1142 int ret;
1143
1144 lbs_deb_enter(LBS_DEB_HOST);
1145
1146 cmd = cmdnode->cmdbuf;
1147
1148 spin_lock_irqsave(&priv->driver_lock, flags);
1149 priv->cur_cmd = cmdnode;
1150 priv->cur_cmd_retcode = 0;
1151 spin_unlock_irqrestore(&priv->driver_lock, flags);
1152
1153 cmdsize = le16_to_cpu(cmd->size);
1154 command = le16_to_cpu(cmd->command);
1155
1156 /* These commands take longer */
1157 if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1158 command == CMD_802_11_AUTHENTICATE)
1159 timeo = 10 * HZ;
1160
1161 lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1162 command, le16_to_cpu(cmd->seqnum), cmdsize);
1163 lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1164
1165 ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1166
1167 if (ret) {
1168 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1169 /* Let the timer kick in and retry, and potentially reset
1170 the whole thing if the condition persists */
1171 timeo = HZ;
1172 }
1173
1174 /* Setup the timer after transmit command */
1175 mod_timer(&priv->command_timer, jiffies + timeo);
1176
1177 lbs_deb_leave(LBS_DEB_HOST);
1178 }
1179
1180 /**
1181 * This function inserts command node to cmdfreeq
1182 * after cleans it. Requires priv->driver_lock held.
1183 */
1184 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1185 struct cmd_ctrl_node *cmdnode)
1186 {
1187 lbs_deb_enter(LBS_DEB_HOST);
1188
1189 if (!cmdnode)
1190 goto out;
1191
1192 cmdnode->callback = NULL;
1193 cmdnode->callback_arg = 0;
1194
1195 memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1196
1197 list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1198 out:
1199 lbs_deb_leave(LBS_DEB_HOST);
1200 }
1201
1202 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1203 struct cmd_ctrl_node *ptempcmd)
1204 {
1205 unsigned long flags;
1206
1207 spin_lock_irqsave(&priv->driver_lock, flags);
1208 __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1209 spin_unlock_irqrestore(&priv->driver_lock, flags);
1210 }
1211
1212 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1213 int result)
1214 {
1215 if (cmd == priv->cur_cmd)
1216 priv->cur_cmd_retcode = result;
1217
1218 cmd->result = result;
1219 cmd->cmdwaitqwoken = 1;
1220 wake_up_interruptible(&cmd->cmdwait_q);
1221
1222 if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1223 __lbs_cleanup_and_insert_cmd(priv, cmd);
1224 priv->cur_cmd = NULL;
1225 }
1226
1227 int lbs_set_radio_control(struct lbs_private *priv)
1228 {
1229 int ret = 0;
1230 struct cmd_ds_802_11_radio_control cmd;
1231
1232 lbs_deb_enter(LBS_DEB_CMD);
1233
1234 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1235 cmd.action = cpu_to_le16(CMD_ACT_SET);
1236
1237 switch (priv->preamble) {
1238 case CMD_TYPE_SHORT_PREAMBLE:
1239 cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
1240 break;
1241
1242 case CMD_TYPE_LONG_PREAMBLE:
1243 cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
1244 break;
1245
1246 case CMD_TYPE_AUTO_PREAMBLE:
1247 default:
1248 cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
1249 break;
1250 }
1251
1252 if (priv->radioon)
1253 cmd.control |= cpu_to_le16(TURN_ON_RF);
1254 else
1255 cmd.control &= cpu_to_le16(~TURN_ON_RF);
1256
1257 lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon,
1258 priv->preamble);
1259
1260 ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1261
1262 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1263 return ret;
1264 }
1265
1266 void lbs_set_mac_control(struct lbs_private *priv)
1267 {
1268 struct cmd_ds_mac_control cmd;
1269
1270 lbs_deb_enter(LBS_DEB_CMD);
1271
1272 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1273 cmd.action = cpu_to_le16(priv->mac_control);
1274 cmd.reserved = 0;
1275
1276 lbs_cmd_async(priv, CMD_MAC_CONTROL,
1277 &cmd.hdr, sizeof(cmd));
1278
1279 lbs_deb_leave(LBS_DEB_CMD);
1280 }
1281
1282 /**
1283 * @brief This function prepare the command before send to firmware.
1284 *
1285 * @param priv A pointer to struct lbs_private structure
1286 * @param cmd_no command number
1287 * @param cmd_action command action: GET or SET
1288 * @param wait_option wait option: wait response or not
1289 * @param cmd_oid cmd oid: treated as sub command
1290 * @param pdata_buf A pointer to informaion buffer
1291 * @return 0 or -1
1292 */
1293 int lbs_prepare_and_send_command(struct lbs_private *priv,
1294 u16 cmd_no,
1295 u16 cmd_action,
1296 u16 wait_option, u32 cmd_oid, void *pdata_buf)
1297 {
1298 int ret = 0;
1299 struct cmd_ctrl_node *cmdnode;
1300 struct cmd_ds_command *cmdptr;
1301 unsigned long flags;
1302
1303 lbs_deb_enter(LBS_DEB_HOST);
1304
1305 if (!priv) {
1306 lbs_deb_host("PREP_CMD: priv is NULL\n");
1307 ret = -1;
1308 goto done;
1309 }
1310
1311 if (priv->surpriseremoved) {
1312 lbs_deb_host("PREP_CMD: card removed\n");
1313 ret = -1;
1314 goto done;
1315 }
1316
1317 cmdnode = lbs_get_cmd_ctrl_node(priv);
1318
1319 if (cmdnode == NULL) {
1320 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1321
1322 /* Wake up main thread to execute next command */
1323 wake_up_interruptible(&priv->waitq);
1324 ret = -1;
1325 goto done;
1326 }
1327
1328 cmdnode->callback = NULL;
1329 cmdnode->callback_arg = (unsigned long)pdata_buf;
1330
1331 cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1332
1333 lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1334
1335 /* Set sequence number, command and INT option */
1336 priv->seqnum++;
1337 cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1338
1339 cmdptr->command = cpu_to_le16(cmd_no);
1340 cmdptr->result = 0;
1341
1342 switch (cmd_no) {
1343 case CMD_802_11_PS_MODE:
1344 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1345 break;
1346
1347 case CMD_802_11_ASSOCIATE:
1348 case CMD_802_11_REASSOCIATE:
1349 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1350 break;
1351
1352 case CMD_802_11_DEAUTHENTICATE:
1353 ret = lbs_cmd_80211_deauthenticate(priv, cmdptr);
1354 break;
1355
1356 case CMD_802_11_AD_HOC_START:
1357 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1358 break;
1359
1360 case CMD_802_11_RESET:
1361 ret = lbs_cmd_802_11_reset(cmdptr, cmd_action);
1362 break;
1363
1364 case CMD_802_11_AUTHENTICATE:
1365 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1366 break;
1367
1368 case CMD_802_11_SNMP_MIB:
1369 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1370 cmd_action, cmd_oid, pdata_buf);
1371 break;
1372
1373 case CMD_MAC_REG_ACCESS:
1374 case CMD_BBP_REG_ACCESS:
1375 case CMD_RF_REG_ACCESS:
1376 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1377 break;
1378
1379 case CMD_802_11_RF_TX_POWER:
1380 ret = lbs_cmd_802_11_rf_tx_power(cmdptr,
1381 cmd_action, pdata_buf);
1382 break;
1383
1384 case CMD_802_11_RATE_ADAPT_RATESET:
1385 ret = lbs_cmd_802_11_rate_adapt_rateset(priv,
1386 cmdptr, cmd_action);
1387 break;
1388
1389 case CMD_MAC_MULTICAST_ADR:
1390 ret = lbs_cmd_mac_multicast_adr(priv, cmdptr, cmd_action);
1391 break;
1392
1393 case CMD_802_11_MONITOR_MODE:
1394 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1395 cmd_action, pdata_buf);
1396 break;
1397
1398 case CMD_802_11_AD_HOC_JOIN:
1399 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1400 break;
1401
1402 case CMD_802_11_RSSI:
1403 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1404 break;
1405
1406 case CMD_802_11_AD_HOC_STOP:
1407 ret = lbs_cmd_80211_ad_hoc_stop(cmdptr);
1408 break;
1409
1410 case CMD_802_11_SET_AFC:
1411 case CMD_802_11_GET_AFC:
1412
1413 cmdptr->command = cpu_to_le16(cmd_no);
1414 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1415 S_DS_GEN);
1416
1417 memmove(&cmdptr->params.afc,
1418 pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1419
1420 ret = 0;
1421 goto done;
1422
1423 case CMD_802_11D_DOMAIN_INFO:
1424 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1425 cmd_no, cmd_action);
1426 break;
1427
1428 case CMD_802_11_TPC_CFG:
1429 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1430 cmdptr->size =
1431 cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1432 S_DS_GEN);
1433
1434 memmove(&cmdptr->params.tpccfg,
1435 pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1436
1437 ret = 0;
1438 break;
1439 case CMD_802_11_LED_GPIO_CTRL:
1440 {
1441 struct mrvlietypes_ledgpio *gpio =
1442 (struct mrvlietypes_ledgpio*)
1443 cmdptr->params.ledgpio.data;
1444
1445 memmove(&cmdptr->params.ledgpio,
1446 pdata_buf,
1447 sizeof(struct cmd_ds_802_11_led_ctrl));
1448
1449 cmdptr->command =
1450 cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1451
1452 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1453 cmdptr->size =
1454 cpu_to_le16(le16_to_cpu(gpio->header.len)
1455 + S_DS_GEN
1456 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1457 gpio->header.len = gpio->header.len;
1458
1459 ret = 0;
1460 break;
1461 }
1462
1463 case CMD_BT_ACCESS:
1464 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1465 break;
1466
1467 case CMD_FWT_ACCESS:
1468 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1469 break;
1470
1471 case CMD_GET_TSF:
1472 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1473 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1474 S_DS_GEN);
1475 ret = 0;
1476 break;
1477 case CMD_802_11_BEACON_CTRL:
1478 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1479 break;
1480 default:
1481 lbs_deb_host("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1482 ret = -1;
1483 break;
1484 }
1485
1486 /* return error, since the command preparation failed */
1487 if (ret != 0) {
1488 lbs_deb_host("PREP_CMD: command preparation failed\n");
1489 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1490 ret = -1;
1491 goto done;
1492 }
1493
1494 cmdnode->cmdwaitqwoken = 0;
1495
1496 lbs_queue_cmd(priv, cmdnode);
1497 wake_up_interruptible(&priv->waitq);
1498
1499 if (wait_option & CMD_OPTION_WAITFORRSP) {
1500 lbs_deb_host("PREP_CMD: wait for response\n");
1501 might_sleep();
1502 wait_event_interruptible(cmdnode->cmdwait_q,
1503 cmdnode->cmdwaitqwoken);
1504 }
1505
1506 spin_lock_irqsave(&priv->driver_lock, flags);
1507 if (priv->cur_cmd_retcode) {
1508 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1509 priv->cur_cmd_retcode);
1510 priv->cur_cmd_retcode = 0;
1511 ret = -1;
1512 }
1513 spin_unlock_irqrestore(&priv->driver_lock, flags);
1514
1515 done:
1516 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1517 return ret;
1518 }
1519
1520 /**
1521 * @brief This function allocates the command buffer and link
1522 * it to command free queue.
1523 *
1524 * @param priv A pointer to struct lbs_private structure
1525 * @return 0 or -1
1526 */
1527 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1528 {
1529 int ret = 0;
1530 u32 bufsize;
1531 u32 i;
1532 struct cmd_ctrl_node *cmdarray;
1533
1534 lbs_deb_enter(LBS_DEB_HOST);
1535
1536 /* Allocate and initialize the command array */
1537 bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1538 if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1539 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1540 ret = -1;
1541 goto done;
1542 }
1543 priv->cmd_array = cmdarray;
1544
1545 /* Allocate and initialize each command buffer in the command array */
1546 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1547 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1548 if (!cmdarray[i].cmdbuf) {
1549 lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1550 ret = -1;
1551 goto done;
1552 }
1553 }
1554
1555 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1556 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1557 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1558 }
1559 ret = 0;
1560
1561 done:
1562 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1563 return ret;
1564 }
1565
1566 /**
1567 * @brief This function frees the command buffer.
1568 *
1569 * @param priv A pointer to struct lbs_private structure
1570 * @return 0 or -1
1571 */
1572 int lbs_free_cmd_buffer(struct lbs_private *priv)
1573 {
1574 struct cmd_ctrl_node *cmdarray;
1575 unsigned int i;
1576
1577 lbs_deb_enter(LBS_DEB_HOST);
1578
1579 /* need to check if cmd array is allocated or not */
1580 if (priv->cmd_array == NULL) {
1581 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1582 goto done;
1583 }
1584
1585 cmdarray = priv->cmd_array;
1586
1587 /* Release shared memory buffers */
1588 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1589 if (cmdarray[i].cmdbuf) {
1590 kfree(cmdarray[i].cmdbuf);
1591 cmdarray[i].cmdbuf = NULL;
1592 }
1593 }
1594
1595 /* Release cmd_ctrl_node */
1596 if (priv->cmd_array) {
1597 kfree(priv->cmd_array);
1598 priv->cmd_array = NULL;
1599 }
1600
1601 done:
1602 lbs_deb_leave(LBS_DEB_HOST);
1603 return 0;
1604 }
1605
1606 /**
1607 * @brief This function gets a free command node if available in
1608 * command free queue.
1609 *
1610 * @param priv A pointer to struct lbs_private structure
1611 * @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1612 */
1613 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1614 {
1615 struct cmd_ctrl_node *tempnode;
1616 unsigned long flags;
1617
1618 lbs_deb_enter(LBS_DEB_HOST);
1619
1620 if (!priv)
1621 return NULL;
1622
1623 spin_lock_irqsave(&priv->driver_lock, flags);
1624
1625 if (!list_empty(&priv->cmdfreeq)) {
1626 tempnode = list_first_entry(&priv->cmdfreeq,
1627 struct cmd_ctrl_node, list);
1628 list_del(&tempnode->list);
1629 } else {
1630 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1631 tempnode = NULL;
1632 }
1633
1634 spin_unlock_irqrestore(&priv->driver_lock, flags);
1635
1636 lbs_deb_leave(LBS_DEB_HOST);
1637 return tempnode;
1638 }
1639
1640 /**
1641 * @brief This function executes next command in command
1642 * pending queue. It will put fimware back to PS mode
1643 * if applicable.
1644 *
1645 * @param priv A pointer to struct lbs_private structure
1646 * @return 0 or -1
1647 */
1648 int lbs_execute_next_command(struct lbs_private *priv)
1649 {
1650 struct cmd_ctrl_node *cmdnode = NULL;
1651 struct cmd_header *cmd;
1652 unsigned long flags;
1653 int ret = 0;
1654
1655 /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1656 * only caller to us is lbs_thread() and we get even when a
1657 * data packet is received */
1658 lbs_deb_enter(LBS_DEB_THREAD);
1659
1660 spin_lock_irqsave(&priv->driver_lock, flags);
1661
1662 if (priv->cur_cmd) {
1663 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1664 spin_unlock_irqrestore(&priv->driver_lock, flags);
1665 ret = -1;
1666 goto done;
1667 }
1668
1669 if (!list_empty(&priv->cmdpendingq)) {
1670 cmdnode = list_first_entry(&priv->cmdpendingq,
1671 struct cmd_ctrl_node, list);
1672 }
1673
1674 spin_unlock_irqrestore(&priv->driver_lock, flags);
1675
1676 if (cmdnode) {
1677 cmd = cmdnode->cmdbuf;
1678
1679 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1680 if ((priv->psstate == PS_STATE_SLEEP) ||
1681 (priv->psstate == PS_STATE_PRE_SLEEP)) {
1682 lbs_deb_host(
1683 "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1684 le16_to_cpu(cmd->command),
1685 priv->psstate);
1686 ret = -1;
1687 goto done;
1688 }
1689 lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1690 "0x%04x in psstate %d\n",
1691 le16_to_cpu(cmd->command), priv->psstate);
1692 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1693 /*
1694 * 1. Non-PS command:
1695 * Queue it. set needtowakeup to TRUE if current state
1696 * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1697 * 2. PS command but not Exit_PS:
1698 * Ignore it.
1699 * 3. PS command Exit_PS:
1700 * Set needtowakeup to TRUE if current state is SLEEP,
1701 * otherwise send this command down to firmware
1702 * immediately.
1703 */
1704 if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1705 /* Prepare to send Exit PS,
1706 * this non PS command will be sent later */
1707 if ((priv->psstate == PS_STATE_SLEEP)
1708 || (priv->psstate == PS_STATE_PRE_SLEEP)
1709 ) {
1710 /* w/ new scheme, it will not reach here.
1711 since it is blocked in main_thread. */
1712 priv->needtowakeup = 1;
1713 } else
1714 lbs_ps_wakeup(priv, 0);
1715
1716 ret = 0;
1717 goto done;
1718 } else {
1719 /*
1720 * PS command. Ignore it if it is not Exit_PS.
1721 * otherwise send it down immediately.
1722 */
1723 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1724
1725 lbs_deb_host(
1726 "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1727 psm->action);
1728 if (psm->action !=
1729 cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1730 lbs_deb_host(
1731 "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1732 list_del(&cmdnode->list);
1733 spin_lock_irqsave(&priv->driver_lock, flags);
1734 lbs_complete_command(priv, cmdnode, 0);
1735 spin_unlock_irqrestore(&priv->driver_lock, flags);
1736
1737 ret = 0;
1738 goto done;
1739 }
1740
1741 if ((priv->psstate == PS_STATE_SLEEP) ||
1742 (priv->psstate == PS_STATE_PRE_SLEEP)) {
1743 lbs_deb_host(
1744 "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1745 list_del(&cmdnode->list);
1746 spin_lock_irqsave(&priv->driver_lock, flags);
1747 lbs_complete_command(priv, cmdnode, 0);
1748 spin_unlock_irqrestore(&priv->driver_lock, flags);
1749 priv->needtowakeup = 1;
1750
1751 ret = 0;
1752 goto done;
1753 }
1754
1755 lbs_deb_host(
1756 "EXEC_NEXT_CMD: sending EXIT_PS\n");
1757 }
1758 }
1759 list_del(&cmdnode->list);
1760 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1761 le16_to_cpu(cmd->command));
1762 lbs_submit_command(priv, cmdnode);
1763 } else {
1764 /*
1765 * check if in power save mode, if yes, put the device back
1766 * to PS mode
1767 */
1768 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1769 (priv->psstate == PS_STATE_FULL_POWER) &&
1770 ((priv->connect_status == LBS_CONNECTED) ||
1771 (priv->mesh_connect_status == LBS_CONNECTED))) {
1772 if (priv->secinfo.WPAenabled ||
1773 priv->secinfo.WPA2enabled) {
1774 /* check for valid WPA group keys */
1775 if (priv->wpa_mcast_key.len ||
1776 priv->wpa_unicast_key.len) {
1777 lbs_deb_host(
1778 "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1779 " go back to PS_SLEEP");
1780 lbs_ps_sleep(priv, 0);
1781 }
1782 } else {
1783 lbs_deb_host(
1784 "EXEC_NEXT_CMD: cmdpendingq empty, "
1785 "go back to PS_SLEEP");
1786 lbs_ps_sleep(priv, 0);
1787 }
1788 }
1789 }
1790
1791 ret = 0;
1792 done:
1793 lbs_deb_leave(LBS_DEB_THREAD);
1794 return ret;
1795 }
1796
1797 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1798 {
1799 union iwreq_data iwrq;
1800 u8 buf[50];
1801
1802 lbs_deb_enter(LBS_DEB_WEXT);
1803
1804 memset(&iwrq, 0, sizeof(union iwreq_data));
1805 memset(buf, 0, sizeof(buf));
1806
1807 snprintf(buf, sizeof(buf) - 1, "%s", str);
1808
1809 iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1810
1811 /* Send Event to upper layer */
1812 lbs_deb_wext("event indication string %s\n", (char *)buf);
1813 lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1814 lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1815
1816 wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1817
1818 lbs_deb_leave(LBS_DEB_WEXT);
1819 }
1820
1821 static void lbs_send_confirmsleep(struct lbs_private *priv)
1822 {
1823 unsigned long flags;
1824 int ret;
1825
1826 lbs_deb_enter(LBS_DEB_HOST);
1827 lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1828 sizeof(confirm_sleep));
1829
1830 ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1831 sizeof(confirm_sleep));
1832
1833 if (ret) {
1834 lbs_pr_alert("confirm_sleep failed\n");
1835 } else {
1836 spin_lock_irqsave(&priv->driver_lock, flags);
1837 if (!priv->intcounter)
1838 priv->psstate = PS_STATE_SLEEP;
1839 spin_unlock_irqrestore(&priv->driver_lock, flags);
1840 }
1841 lbs_deb_leave(LBS_DEB_HOST);
1842 }
1843
1844 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1845 {
1846 lbs_deb_enter(LBS_DEB_HOST);
1847
1848 /*
1849 * PS is currently supported only in Infrastructure mode
1850 * Remove this check if it is to be supported in IBSS mode also
1851 */
1852
1853 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1854 CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1855
1856 lbs_deb_leave(LBS_DEB_HOST);
1857 }
1858
1859 /**
1860 * @brief This function sends Exit_PS command to firmware.
1861 *
1862 * @param priv A pointer to struct lbs_private structure
1863 * @param wait_option wait response or not
1864 * @return n/a
1865 */
1866 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1867 {
1868 __le32 Localpsmode;
1869
1870 lbs_deb_enter(LBS_DEB_HOST);
1871
1872 Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1873
1874 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1875 CMD_SUBCMD_EXIT_PS,
1876 wait_option, 0, &Localpsmode);
1877
1878 lbs_deb_leave(LBS_DEB_HOST);
1879 }
1880
1881 /**
1882 * @brief This function checks condition and prepares to
1883 * send sleep confirm command to firmware if ok.
1884 *
1885 * @param priv A pointer to struct lbs_private structure
1886 * @param psmode Power Saving mode
1887 * @return n/a
1888 */
1889 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1890 {
1891 unsigned long flags =0;
1892 int allowed = 1;
1893
1894 lbs_deb_enter(LBS_DEB_HOST);
1895
1896 if (priv->dnld_sent) {
1897 allowed = 0;
1898 lbs_deb_host("dnld_sent was set\n");
1899 }
1900
1901 spin_lock_irqsave(&priv->driver_lock, flags);
1902 if (priv->cur_cmd) {
1903 allowed = 0;
1904 lbs_deb_host("cur_cmd was set\n");
1905 }
1906 if (priv->intcounter > 0) {
1907 allowed = 0;
1908 lbs_deb_host("intcounter %d\n", priv->intcounter);
1909 }
1910 spin_unlock_irqrestore(&priv->driver_lock, flags);
1911
1912 if (allowed) {
1913 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1914 lbs_send_confirmsleep(priv);
1915 } else {
1916 lbs_deb_host("sleep confirm has been delayed\n");
1917 }
1918
1919 lbs_deb_leave(LBS_DEB_HOST);
1920 }
1921
1922
1923 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1924 uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1925 int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1926 unsigned long callback_arg)
1927 {
1928 struct cmd_ctrl_node *cmdnode;
1929
1930 lbs_deb_enter(LBS_DEB_HOST);
1931
1932 if (priv->surpriseremoved) {
1933 lbs_deb_host("PREP_CMD: card removed\n");
1934 cmdnode = ERR_PTR(-ENOENT);
1935 goto done;
1936 }
1937
1938 cmdnode = lbs_get_cmd_ctrl_node(priv);
1939 if (cmdnode == NULL) {
1940 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1941
1942 /* Wake up main thread to execute next command */
1943 wake_up_interruptible(&priv->waitq);
1944 cmdnode = ERR_PTR(-ENOBUFS);
1945 goto done;
1946 }
1947
1948 cmdnode->callback = callback;
1949 cmdnode->callback_arg = callback_arg;
1950
1951 /* Copy the incoming command to the buffer */
1952 memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
1953
1954 /* Set sequence number, clean result, move to buffer */
1955 priv->seqnum++;
1956 cmdnode->cmdbuf->command = cpu_to_le16(command);
1957 cmdnode->cmdbuf->size = cpu_to_le16(in_cmd_size);
1958 cmdnode->cmdbuf->seqnum = cpu_to_le16(priv->seqnum);
1959 cmdnode->cmdbuf->result = 0;
1960
1961 lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
1962
1963 cmdnode->cmdwaitqwoken = 0;
1964 lbs_queue_cmd(priv, cmdnode);
1965 wake_up_interruptible(&priv->waitq);
1966
1967 done:
1968 lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
1969 return cmdnode;
1970 }
1971
1972 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
1973 struct cmd_header *in_cmd, int in_cmd_size)
1974 {
1975 lbs_deb_enter(LBS_DEB_CMD);
1976 __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
1977 lbs_cmd_async_callback, 0);
1978 lbs_deb_leave(LBS_DEB_CMD);
1979 }
1980
1981 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
1982 struct cmd_header *in_cmd, int in_cmd_size,
1983 int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1984 unsigned long callback_arg)
1985 {
1986 struct cmd_ctrl_node *cmdnode;
1987 unsigned long flags;
1988 int ret = 0;
1989
1990 lbs_deb_enter(LBS_DEB_HOST);
1991
1992 cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
1993 callback, callback_arg);
1994 if (IS_ERR(cmdnode)) {
1995 ret = PTR_ERR(cmdnode);
1996 goto done;
1997 }
1998
1999 might_sleep();
2000 wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2001
2002 spin_lock_irqsave(&priv->driver_lock, flags);
2003 ret = cmdnode->result;
2004 if (ret)
2005 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2006 command, ret);
2007
2008 __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2009 spin_unlock_irqrestore(&priv->driver_lock, flags);
2010
2011 done:
2012 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2013 return ret;
2014 }
2015 EXPORT_SYMBOL_GPL(__lbs_cmd);
2016
2017
Support for the Chinese Samsung S3C2440 based development boards