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