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libertas: Extend MESH_CONFIG command to access non-volatile configuration
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / wireless / libertas / cmd.c
1 /**
2 * This file contains the handling of command.
3 * It prepares command and sends it to firmware when it is ready.
4 */
5
6 #include <net/iw_handler.h>
7 #include <net/ieee80211.h>
8 #include <linux/kfifo.h>
9 #include "host.h"
10 #include "hostcmd.h"
11 #include "decl.h"
12 #include "defs.h"
13 #include "dev.h"
14 #include "assoc.h"
15 #include "wext.h"
16 #include "cmd.h"
17
18 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv);
19
20
21 /**
22 * @brief Simple callback that copies response back into command
23 *
24 * @param priv A pointer to struct lbs_private structure
25 * @param extra A pointer to the original command structure for which
26 * 'resp' is a response
27 * @param resp A pointer to the command response
28 *
29 * @return 0 on success, error on failure
30 */
31 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
32 struct cmd_header *resp)
33 {
34 struct cmd_header *buf = (void *)extra;
35 uint16_t copy_len;
36
37 copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
38 memcpy(buf, resp, copy_len);
39 return 0;
40 }
41 EXPORT_SYMBOL_GPL(lbs_cmd_copyback);
42
43 /**
44 * @brief Simple callback that ignores the result. Use this if
45 * you just want to send a command to the hardware, but don't
46 * care for the result.
47 *
48 * @param priv ignored
49 * @param extra ignored
50 * @param resp ignored
51 *
52 * @return 0 for success
53 */
54 static int lbs_cmd_async_callback(struct lbs_private *priv, unsigned long extra,
55 struct cmd_header *resp)
56 {
57 return 0;
58 }
59
60
61 /**
62 * @brief Checks whether a command is allowed in Power Save mode
63 *
64 * @param command the command ID
65 * @return 1 if allowed, 0 if not allowed
66 */
67 static u8 is_command_allowed_in_ps(u16 cmd)
68 {
69 switch (cmd) {
70 case CMD_802_11_RSSI:
71 return 1;
72 default:
73 break;
74 }
75 return 0;
76 }
77
78 /**
79 * @brief Updates the hardware details like MAC address and regulatory region
80 *
81 * @param priv A pointer to struct lbs_private structure
82 *
83 * @return 0 on success, error on failure
84 */
85 int lbs_update_hw_spec(struct lbs_private *priv)
86 {
87 struct cmd_ds_get_hw_spec cmd;
88 int ret = -1;
89 u32 i;
90 DECLARE_MAC_BUF(mac);
91
92 lbs_deb_enter(LBS_DEB_CMD);
93
94 memset(&cmd, 0, sizeof(cmd));
95 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
96 memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
97 ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
98 if (ret)
99 goto out;
100
101 priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
102
103 /* The firmware release is in an interesting format: the patch
104 * level is in the most significant nibble ... so fix that: */
105 priv->fwrelease = le32_to_cpu(cmd.fwrelease);
106 priv->fwrelease = (priv->fwrelease << 8) |
107 (priv->fwrelease >> 24 & 0xff);
108
109 /* Some firmware capabilities:
110 * CF card firmware 5.0.16p0: cap 0x00000303
111 * USB dongle firmware 5.110.17p2: cap 0x00000303
112 */
113 printk("libertas: %s, fw %u.%u.%up%u, cap 0x%08x\n",
114 print_mac(mac, cmd.permanentaddr),
115 priv->fwrelease >> 24 & 0xff,
116 priv->fwrelease >> 16 & 0xff,
117 priv->fwrelease >> 8 & 0xff,
118 priv->fwrelease & 0xff,
119 priv->fwcapinfo);
120 lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
121 cmd.hwifversion, cmd.version);
122
123 /* Clamp region code to 8-bit since FW spec indicates that it should
124 * only ever be 8-bit, even though the field size is 16-bit. Some firmware
125 * returns non-zero high 8 bits here.
126 */
127 priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
128
129 for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
130 /* use the region code to search for the index */
131 if (priv->regioncode == lbs_region_code_to_index[i])
132 break;
133 }
134
135 /* if it's unidentified region code, use the default (USA) */
136 if (i >= MRVDRV_MAX_REGION_CODE) {
137 priv->regioncode = 0x10;
138 lbs_pr_info("unidentified region code; using the default (USA)\n");
139 }
140
141 if (priv->current_addr[0] == 0xff)
142 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
143
144 memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
145 if (priv->mesh_dev)
146 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
147
148 if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
149 ret = -1;
150 goto out;
151 }
152
153 if (lbs_set_universaltable(priv, 0)) {
154 ret = -1;
155 goto out;
156 }
157
158 out:
159 lbs_deb_leave(LBS_DEB_CMD);
160 return ret;
161 }
162
163 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria)
164 {
165 struct cmd_ds_host_sleep cmd_config;
166 int ret;
167
168 cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config));
169 cmd_config.criteria = cpu_to_le32(criteria);
170 cmd_config.gpio = priv->wol_gpio;
171 cmd_config.gap = priv->wol_gap;
172
173 ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
174 if (!ret) {
175 lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
176 priv->wol_criteria = criteria;
177 } else {
178 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
179 }
180
181 return ret;
182 }
183 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
184
185 static int lbs_cmd_802_11_ps_mode(struct cmd_ds_command *cmd,
186 u16 cmd_action)
187 {
188 struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
189
190 lbs_deb_enter(LBS_DEB_CMD);
191
192 cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
193 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
194 S_DS_GEN);
195 psm->action = cpu_to_le16(cmd_action);
196 psm->multipledtim = 0;
197 switch (cmd_action) {
198 case CMD_SUBCMD_ENTER_PS:
199 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
200
201 psm->locallisteninterval = 0;
202 psm->nullpktinterval = 0;
203 psm->multipledtim =
204 cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
205 break;
206
207 case CMD_SUBCMD_EXIT_PS:
208 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
209 break;
210
211 case CMD_SUBCMD_SLEEP_CONFIRMED:
212 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
213 break;
214
215 default:
216 break;
217 }
218
219 lbs_deb_leave(LBS_DEB_CMD);
220 return 0;
221 }
222
223 int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
224 uint16_t cmd_action, uint16_t *timeout)
225 {
226 struct cmd_ds_802_11_inactivity_timeout cmd;
227 int ret;
228
229 lbs_deb_enter(LBS_DEB_CMD);
230
231 cmd.hdr.command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
232 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
233
234 cmd.action = cpu_to_le16(cmd_action);
235
236 if (cmd_action == CMD_ACT_SET)
237 cmd.timeout = cpu_to_le16(*timeout);
238 else
239 cmd.timeout = 0;
240
241 ret = lbs_cmd_with_response(priv, CMD_802_11_INACTIVITY_TIMEOUT, &cmd);
242
243 if (!ret)
244 *timeout = le16_to_cpu(cmd.timeout);
245
246 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
247 return 0;
248 }
249
250 int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
251 struct sleep_params *sp)
252 {
253 struct cmd_ds_802_11_sleep_params cmd;
254 int ret;
255
256 lbs_deb_enter(LBS_DEB_CMD);
257
258 if (cmd_action == CMD_ACT_GET) {
259 memset(&cmd, 0, sizeof(cmd));
260 } else {
261 cmd.error = cpu_to_le16(sp->sp_error);
262 cmd.offset = cpu_to_le16(sp->sp_offset);
263 cmd.stabletime = cpu_to_le16(sp->sp_stabletime);
264 cmd.calcontrol = sp->sp_calcontrol;
265 cmd.externalsleepclk = sp->sp_extsleepclk;
266 cmd.reserved = cpu_to_le16(sp->sp_reserved);
267 }
268 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
269 cmd.action = cpu_to_le16(cmd_action);
270
271 ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
272
273 if (!ret) {
274 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
275 "calcontrol 0x%x extsleepclk 0x%x\n",
276 le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset),
277 le16_to_cpu(cmd.stabletime), cmd.calcontrol,
278 cmd.externalsleepclk);
279
280 sp->sp_error = le16_to_cpu(cmd.error);
281 sp->sp_offset = le16_to_cpu(cmd.offset);
282 sp->sp_stabletime = le16_to_cpu(cmd.stabletime);
283 sp->sp_calcontrol = cmd.calcontrol;
284 sp->sp_extsleepclk = cmd.externalsleepclk;
285 sp->sp_reserved = le16_to_cpu(cmd.reserved);
286 }
287
288 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
289 return 0;
290 }
291
292 int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
293 struct assoc_request *assoc)
294 {
295 struct cmd_ds_802_11_set_wep cmd;
296 int ret = 0;
297
298 lbs_deb_enter(LBS_DEB_CMD);
299
300 memset(&cmd, 0, sizeof(cmd));
301 cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP);
302 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
303
304 cmd.action = cpu_to_le16(cmd_action);
305
306 if (cmd_action == CMD_ACT_ADD) {
307 int i;
308
309 /* default tx key index */
310 cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
311 CMD_WEP_KEY_INDEX_MASK);
312
313 /* Copy key types and material to host command structure */
314 for (i = 0; i < 4; i++) {
315 struct enc_key *pkey = &assoc->wep_keys[i];
316
317 switch (pkey->len) {
318 case KEY_LEN_WEP_40:
319 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
320 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
321 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
322 break;
323 case KEY_LEN_WEP_104:
324 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
325 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
326 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
327 break;
328 case 0:
329 break;
330 default:
331 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
332 i, pkey->len);
333 ret = -1;
334 goto done;
335 break;
336 }
337 }
338 } else if (cmd_action == CMD_ACT_REMOVE) {
339 /* ACT_REMOVE clears _all_ WEP keys */
340
341 /* default tx key index */
342 cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx &
343 CMD_WEP_KEY_INDEX_MASK);
344 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
345 }
346
347 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
348 done:
349 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
350 return ret;
351 }
352
353 int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
354 uint16_t *enable)
355 {
356 struct cmd_ds_802_11_enable_rsn cmd;
357 int ret;
358
359 lbs_deb_enter(LBS_DEB_CMD);
360
361 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
362 cmd.action = cpu_to_le16(cmd_action);
363
364 if (cmd_action == CMD_ACT_GET)
365 cmd.enable = 0;
366 else {
367 if (*enable)
368 cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
369 else
370 cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
371 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
372 }
373
374 ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
375 if (!ret && cmd_action == CMD_ACT_GET)
376 *enable = le16_to_cpu(cmd.enable);
377
378 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
379 return ret;
380 }
381
382 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
383 struct enc_key *key)
384 {
385 lbs_deb_enter(LBS_DEB_CMD);
386
387 if (key->flags & KEY_INFO_WPA_ENABLED)
388 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
389 if (key->flags & KEY_INFO_WPA_UNICAST)
390 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
391 if (key->flags & KEY_INFO_WPA_MCAST)
392 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
393
394 keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
395 keyparam->keytypeid = cpu_to_le16(key->type);
396 keyparam->keylen = cpu_to_le16(key->len);
397 memcpy(keyparam->key, key->key, key->len);
398
399 /* Length field doesn't include the {type,length} header */
400 keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
401 lbs_deb_leave(LBS_DEB_CMD);
402 }
403
404 int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
405 struct assoc_request *assoc)
406 {
407 struct cmd_ds_802_11_key_material cmd;
408 int ret = 0;
409 int index = 0;
410
411 lbs_deb_enter(LBS_DEB_CMD);
412
413 cmd.action = cpu_to_le16(cmd_action);
414 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
415
416 if (cmd_action == CMD_ACT_GET) {
417 cmd.hdr.size = cpu_to_le16(S_DS_GEN + 2);
418 } else {
419 memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
420
421 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
422 set_one_wpa_key(&cmd.keyParamSet[index],
423 &assoc->wpa_unicast_key);
424 index++;
425 }
426
427 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
428 set_one_wpa_key(&cmd.keyParamSet[index],
429 &assoc->wpa_mcast_key);
430 index++;
431 }
432
433 /* The common header and as many keys as we included */
434 cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
435 keyParamSet[index]));
436 }
437 ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
438 /* Copy the returned key to driver private data */
439 if (!ret && cmd_action == CMD_ACT_GET) {
440 void *buf_ptr = cmd.keyParamSet;
441 void *resp_end = &(&cmd)[1];
442
443 while (buf_ptr < resp_end) {
444 struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
445 struct enc_key *key;
446 uint16_t param_set_len = le16_to_cpu(keyparam->length);
447 uint16_t key_len = le16_to_cpu(keyparam->keylen);
448 uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
449 uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
450 void *end;
451
452 end = (void *)keyparam + sizeof(keyparam->type)
453 + sizeof(keyparam->length) + param_set_len;
454
455 /* Make sure we don't access past the end of the IEs */
456 if (end > resp_end)
457 break;
458
459 if (key_flags & KEY_INFO_WPA_UNICAST)
460 key = &priv->wpa_unicast_key;
461 else if (key_flags & KEY_INFO_WPA_MCAST)
462 key = &priv->wpa_mcast_key;
463 else
464 break;
465
466 /* Copy returned key into driver */
467 memset(key, 0, sizeof(struct enc_key));
468 if (key_len > sizeof(key->key))
469 break;
470 key->type = key_type;
471 key->flags = key_flags;
472 key->len = key_len;
473 memcpy(key->key, keyparam->key, key->len);
474
475 buf_ptr = end + 1;
476 }
477 }
478
479 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
480 return ret;
481 }
482
483 static int lbs_cmd_802_11_reset(struct cmd_ds_command *cmd, int cmd_action)
484 {
485 struct cmd_ds_802_11_reset *reset = &cmd->params.reset;
486
487 lbs_deb_enter(LBS_DEB_CMD);
488
489 cmd->command = cpu_to_le16(CMD_802_11_RESET);
490 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset) + S_DS_GEN);
491 reset->action = cpu_to_le16(cmd_action);
492
493 lbs_deb_leave(LBS_DEB_CMD);
494 return 0;
495 }
496
497 static int lbs_cmd_802_11_snmp_mib(struct lbs_private *priv,
498 struct cmd_ds_command *cmd,
499 int cmd_action,
500 int cmd_oid, void *pdata_buf)
501 {
502 struct cmd_ds_802_11_snmp_mib *pSNMPMIB = &cmd->params.smib;
503 u8 ucTemp;
504
505 lbs_deb_enter(LBS_DEB_CMD);
506
507 lbs_deb_cmd("SNMP_CMD: cmd_oid = 0x%x\n", cmd_oid);
508
509 cmd->command = cpu_to_le16(CMD_802_11_SNMP_MIB);
510 cmd->size = cpu_to_le16(sizeof(*pSNMPMIB) + S_DS_GEN);
511
512 switch (cmd_oid) {
513 case OID_802_11_INFRASTRUCTURE_MODE:
514 {
515 u8 mode = (u8) (size_t) pdata_buf;
516 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
517 pSNMPMIB->oid = cpu_to_le16((u16) DESIRED_BSSTYPE_I);
518 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u8));
519 if (mode == IW_MODE_ADHOC) {
520 ucTemp = SNMP_MIB_VALUE_ADHOC;
521 } else {
522 /* Infra and Auto modes */
523 ucTemp = SNMP_MIB_VALUE_INFRA;
524 }
525
526 memmove(pSNMPMIB->value, &ucTemp, sizeof(u8));
527
528 break;
529 }
530
531 case OID_802_11D_ENABLE:
532 {
533 u32 ulTemp;
534
535 pSNMPMIB->oid = cpu_to_le16((u16) DOT11D_I);
536
537 if (cmd_action == CMD_ACT_SET) {
538 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
539 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
540 ulTemp = *(u32 *)pdata_buf;
541 *((__le16 *)(pSNMPMIB->value)) =
542 cpu_to_le16((u16) ulTemp);
543 }
544 break;
545 }
546
547 case OID_802_11_FRAGMENTATION_THRESHOLD:
548 {
549 u32 ulTemp;
550
551 pSNMPMIB->oid = cpu_to_le16((u16) FRAGTHRESH_I);
552
553 if (cmd_action == CMD_ACT_GET) {
554 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
555 } else if (cmd_action == CMD_ACT_SET) {
556 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
557 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
558 ulTemp = *((u32 *) pdata_buf);
559 *((__le16 *)(pSNMPMIB->value)) =
560 cpu_to_le16((u16) ulTemp);
561
562 }
563
564 break;
565 }
566
567 case OID_802_11_RTS_THRESHOLD:
568 {
569
570 u32 ulTemp;
571 pSNMPMIB->oid = cpu_to_le16(RTSTHRESH_I);
572
573 if (cmd_action == CMD_ACT_GET) {
574 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
575 } else if (cmd_action == CMD_ACT_SET) {
576 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
577 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
578 ulTemp = *((u32 *)pdata_buf);
579 *(__le16 *)(pSNMPMIB->value) =
580 cpu_to_le16((u16) ulTemp);
581
582 }
583 break;
584 }
585 case OID_802_11_TX_RETRYCOUNT:
586 pSNMPMIB->oid = cpu_to_le16((u16) SHORT_RETRYLIM_I);
587
588 if (cmd_action == CMD_ACT_GET) {
589 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
590 } else if (cmd_action == CMD_ACT_SET) {
591 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
592 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
593 *((__le16 *)(pSNMPMIB->value)) =
594 cpu_to_le16((u16) priv->txretrycount);
595 }
596
597 break;
598 default:
599 break;
600 }
601
602 lbs_deb_cmd(
603 "SNMP_CMD: command=0x%x, size=0x%x, seqnum=0x%x, result=0x%x\n",
604 le16_to_cpu(cmd->command), le16_to_cpu(cmd->size),
605 le16_to_cpu(cmd->seqnum), le16_to_cpu(cmd->result));
606
607 lbs_deb_cmd(
608 "SNMP_CMD: action 0x%x, oid 0x%x, oidsize 0x%x, value 0x%x\n",
609 le16_to_cpu(pSNMPMIB->querytype), le16_to_cpu(pSNMPMIB->oid),
610 le16_to_cpu(pSNMPMIB->bufsize),
611 le16_to_cpu(*(__le16 *) pSNMPMIB->value));
612
613 lbs_deb_leave(LBS_DEB_CMD);
614 return 0;
615 }
616
617 static int lbs_cmd_802_11_rf_tx_power(struct cmd_ds_command *cmd,
618 u16 cmd_action, void *pdata_buf)
619 {
620
621 struct cmd_ds_802_11_rf_tx_power *prtp = &cmd->params.txp;
622
623 lbs_deb_enter(LBS_DEB_CMD);
624
625 cmd->size =
626 cpu_to_le16((sizeof(struct cmd_ds_802_11_rf_tx_power)) + S_DS_GEN);
627 cmd->command = cpu_to_le16(CMD_802_11_RF_TX_POWER);
628 prtp->action = cpu_to_le16(cmd_action);
629
630 lbs_deb_cmd("RF_TX_POWER_CMD: size:%d cmd:0x%x Act:%d\n",
631 le16_to_cpu(cmd->size), le16_to_cpu(cmd->command),
632 le16_to_cpu(prtp->action));
633
634 switch (cmd_action) {
635 case CMD_ACT_TX_POWER_OPT_GET:
636 prtp->action = cpu_to_le16(CMD_ACT_GET);
637 prtp->currentlevel = 0;
638 break;
639
640 case CMD_ACT_TX_POWER_OPT_SET_HIGH:
641 prtp->action = cpu_to_le16(CMD_ACT_SET);
642 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_HIGH);
643 break;
644
645 case CMD_ACT_TX_POWER_OPT_SET_MID:
646 prtp->action = cpu_to_le16(CMD_ACT_SET);
647 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_MID);
648 break;
649
650 case CMD_ACT_TX_POWER_OPT_SET_LOW:
651 prtp->action = cpu_to_le16(CMD_ACT_SET);
652 prtp->currentlevel = cpu_to_le16(*((u16 *) pdata_buf));
653 break;
654 }
655
656 lbs_deb_leave(LBS_DEB_CMD);
657 return 0;
658 }
659
660 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
661 u16 cmd_action, void *pdata_buf)
662 {
663 struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
664
665 cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
666 cmd->size =
667 cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
668 S_DS_GEN);
669
670 monitor->action = cpu_to_le16(cmd_action);
671 if (cmd_action == CMD_ACT_SET) {
672 monitor->mode =
673 cpu_to_le16((u16) (*(u32 *) pdata_buf));
674 }
675
676 return 0;
677 }
678
679 static int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
680 struct cmd_ds_command *cmd,
681 u16 cmd_action)
682 {
683 struct cmd_ds_802_11_rate_adapt_rateset
684 *rateadapt = &cmd->params.rateset;
685
686 lbs_deb_enter(LBS_DEB_CMD);
687 cmd->size =
688 cpu_to_le16(sizeof(struct cmd_ds_802_11_rate_adapt_rateset)
689 + S_DS_GEN);
690 cmd->command = cpu_to_le16(CMD_802_11_RATE_ADAPT_RATESET);
691
692 rateadapt->action = cpu_to_le16(cmd_action);
693 rateadapt->enablehwauto = cpu_to_le16(priv->enablehwauto);
694 rateadapt->bitmap = cpu_to_le16(priv->ratebitmap);
695
696 lbs_deb_leave(LBS_DEB_CMD);
697 return 0;
698 }
699
700 /**
701 * @brief Set the data rate
702 *
703 * @param priv A pointer to struct lbs_private structure
704 * @param rate The desired data rate, or 0 to clear a locked rate
705 *
706 * @return 0 on success, error on failure
707 */
708 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
709 {
710 struct cmd_ds_802_11_data_rate cmd;
711 int ret = 0;
712
713 lbs_deb_enter(LBS_DEB_CMD);
714
715 memset(&cmd, 0, sizeof(cmd));
716 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
717
718 if (rate > 0) {
719 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
720 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
721 if (cmd.rates[0] == 0) {
722 lbs_deb_cmd("DATA_RATE: invalid requested rate of"
723 " 0x%02X\n", rate);
724 ret = 0;
725 goto out;
726 }
727 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
728 } else {
729 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
730 lbs_deb_cmd("DATA_RATE: setting auto\n");
731 }
732
733 ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
734 if (ret)
735 goto out;
736
737 lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
738
739 /* FIXME: get actual rates FW can do if this command actually returns
740 * all data rates supported.
741 */
742 priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
743 lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
744
745 out:
746 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
747 return ret;
748 }
749
750 /**
751 * @brief Get the radio channel
752 *
753 * @param priv A pointer to struct lbs_private structure
754 *
755 * @return The channel on success, error on failure
756 */
757 int lbs_get_channel(struct lbs_private *priv)
758 {
759 struct cmd_ds_802_11_rf_channel cmd;
760 int ret = 0;
761
762 lbs_deb_enter(LBS_DEB_CMD);
763
764 memset(&cmd, 0, sizeof(cmd));
765 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
766 cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
767
768 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
769 if (ret)
770 goto out;
771
772 ret = le16_to_cpu(cmd.channel);
773 lbs_deb_cmd("current radio channel is %d\n", ret);
774
775 out:
776 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
777 return ret;
778 }
779
780 int lbs_update_channel(struct lbs_private *priv)
781 {
782 int ret;
783
784 /* the channel in f/w could be out of sync; get the current channel */
785 lbs_deb_enter(LBS_DEB_ASSOC);
786
787 ret = lbs_get_channel(priv);
788 if (ret > 0) {
789 priv->curbssparams.channel = ret;
790 ret = 0;
791 }
792 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
793 return ret;
794 }
795
796 /**
797 * @brief Set the radio channel
798 *
799 * @param priv A pointer to struct lbs_private structure
800 * @param channel The desired channel, or 0 to clear a locked channel
801 *
802 * @return 0 on success, error on failure
803 */
804 int lbs_set_channel(struct lbs_private *priv, u8 channel)
805 {
806 struct cmd_ds_802_11_rf_channel cmd;
807 u8 old_channel = priv->curbssparams.channel;
808 int ret = 0;
809
810 lbs_deb_enter(LBS_DEB_CMD);
811
812 memset(&cmd, 0, sizeof(cmd));
813 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
814 cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
815 cmd.channel = cpu_to_le16(channel);
816
817 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
818 if (ret)
819 goto out;
820
821 priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
822 lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
823 priv->curbssparams.channel);
824
825 out:
826 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
827 return ret;
828 }
829
830 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
831 struct cmd_ds_command *cmd)
832 {
833
834 lbs_deb_enter(LBS_DEB_CMD);
835 cmd->command = cpu_to_le16(CMD_802_11_RSSI);
836 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
837 cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
838
839 /* reset Beacon SNR/NF/RSSI values */
840 priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
841 priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
842 priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
843 priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
844 priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
845 priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
846
847 lbs_deb_leave(LBS_DEB_CMD);
848 return 0;
849 }
850
851 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
852 u8 cmd_action, void *pdata_buf)
853 {
854 struct lbs_offset_value *offval;
855
856 lbs_deb_enter(LBS_DEB_CMD);
857
858 offval = (struct lbs_offset_value *)pdata_buf;
859
860 switch (le16_to_cpu(cmdptr->command)) {
861 case CMD_MAC_REG_ACCESS:
862 {
863 struct cmd_ds_mac_reg_access *macreg;
864
865 cmdptr->size =
866 cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
867 + S_DS_GEN);
868 macreg =
869 (struct cmd_ds_mac_reg_access *)&cmdptr->params.
870 macreg;
871
872 macreg->action = cpu_to_le16(cmd_action);
873 macreg->offset = cpu_to_le16((u16) offval->offset);
874 macreg->value = cpu_to_le32(offval->value);
875
876 break;
877 }
878
879 case CMD_BBP_REG_ACCESS:
880 {
881 struct cmd_ds_bbp_reg_access *bbpreg;
882
883 cmdptr->size =
884 cpu_to_le16(sizeof
885 (struct cmd_ds_bbp_reg_access)
886 + S_DS_GEN);
887 bbpreg =
888 (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
889 bbpreg;
890
891 bbpreg->action = cpu_to_le16(cmd_action);
892 bbpreg->offset = cpu_to_le16((u16) offval->offset);
893 bbpreg->value = (u8) offval->value;
894
895 break;
896 }
897
898 case CMD_RF_REG_ACCESS:
899 {
900 struct cmd_ds_rf_reg_access *rfreg;
901
902 cmdptr->size =
903 cpu_to_le16(sizeof
904 (struct cmd_ds_rf_reg_access) +
905 S_DS_GEN);
906 rfreg =
907 (struct cmd_ds_rf_reg_access *)&cmdptr->params.
908 rfreg;
909
910 rfreg->action = cpu_to_le16(cmd_action);
911 rfreg->offset = cpu_to_le16((u16) offval->offset);
912 rfreg->value = (u8) offval->value;
913
914 break;
915 }
916
917 default:
918 break;
919 }
920
921 lbs_deb_leave(LBS_DEB_CMD);
922 return 0;
923 }
924
925 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
926 u16 cmd_action, void *pdata_buf)
927 {
928 struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
929 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
930
931 cmd->command = cpu_to_le16(CMD_BT_ACCESS);
932 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
933 cmd->result = 0;
934 bt_access->action = cpu_to_le16(cmd_action);
935
936 switch (cmd_action) {
937 case CMD_ACT_BT_ACCESS_ADD:
938 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
939 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
940 break;
941 case CMD_ACT_BT_ACCESS_DEL:
942 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
943 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
944 break;
945 case CMD_ACT_BT_ACCESS_LIST:
946 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
947 break;
948 case CMD_ACT_BT_ACCESS_RESET:
949 break;
950 case CMD_ACT_BT_ACCESS_SET_INVERT:
951 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
952 break;
953 case CMD_ACT_BT_ACCESS_GET_INVERT:
954 break;
955 default:
956 break;
957 }
958 lbs_deb_leave(LBS_DEB_CMD);
959 return 0;
960 }
961
962 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
963 u16 cmd_action, void *pdata_buf)
964 {
965 struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
966 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
967
968 cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
969 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
970 cmd->result = 0;
971
972 if (pdata_buf)
973 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
974 else
975 memset(fwt_access, 0, sizeof(*fwt_access));
976
977 fwt_access->action = cpu_to_le16(cmd_action);
978
979 lbs_deb_leave(LBS_DEB_CMD);
980 return 0;
981 }
982
983 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
984 struct cmd_ds_mesh_access *cmd)
985 {
986 int ret;
987
988 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
989
990 cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
991 cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
992 cmd->hdr.result = 0;
993
994 cmd->action = cpu_to_le16(cmd_action);
995
996 ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
997
998 lbs_deb_leave(LBS_DEB_CMD);
999 return ret;
1000 }
1001
1002 int lbs_mesh_config_send(struct lbs_private *priv,
1003 struct cmd_ds_mesh_config *cmd,
1004 uint16_t action, uint16_t type)
1005 {
1006 int ret;
1007
1008 lbs_deb_enter(LBS_DEB_CMD);
1009
1010 cmd->hdr.command = cpu_to_le16(CMD_MESH_CONFIG);
1011 cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
1012 cmd->hdr.result = 0;
1013
1014 cmd->type = cpu_to_le16(type);
1015 cmd->action = cpu_to_le16(action);
1016
1017 ret = lbs_cmd_with_response(priv, CMD_MESH_CONFIG, cmd);
1018
1019 lbs_deb_leave(LBS_DEB_CMD);
1020 return ret;
1021 }
1022
1023 /* This function is the CMD_MESH_CONFIG legacy function. It only handles the
1024 * START and STOP actions. The extended actions supported by CMD_MESH_CONFIG
1025 * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
1026 * lbs_mesh_config_send.
1027 */
1028 int lbs_mesh_config(struct lbs_private *priv, uint16_t action, uint16_t chan)
1029 {
1030 struct cmd_ds_mesh_config cmd;
1031 struct mrvl_meshie *ie;
1032
1033 memset(&cmd, 0, sizeof(cmd));
1034 cmd.channel = cpu_to_le16(chan);
1035 ie = (struct mrvl_meshie *)cmd.data;
1036
1037 switch (action) {
1038 case CMD_ACT_MESH_CONFIG_START:
1039 ie->hdr.id = MFIE_TYPE_GENERIC;
1040 ie->val.oui[0] = 0x00;
1041 ie->val.oui[1] = 0x50;
1042 ie->val.oui[2] = 0x43;
1043 ie->val.type = MARVELL_MESH_IE_TYPE;
1044 ie->val.subtype = MARVELL_MESH_IE_SUBTYPE;
1045 ie->val.version = MARVELL_MESH_IE_VERSION;
1046 ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP;
1047 ie->val.active_metric_id = MARVELL_MESH_METRIC_ID;
1048 ie->val.mesh_capability = MARVELL_MESH_CAPABILITY;
1049 ie->val.mesh_id_len = priv->mesh_ssid_len;
1050 memcpy(ie->val.mesh_id, priv->mesh_ssid, priv->mesh_ssid_len);
1051 ie->hdr.len = sizeof(struct mrvl_meshie_val) -
1052 IW_ESSID_MAX_SIZE + priv->mesh_ssid_len;
1053 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val));
1054 break;
1055 case CMD_ACT_MESH_CONFIG_STOP:
1056 break;
1057 default:
1058 return -1;
1059 }
1060 lbs_deb_cmd("mesh config action %d type %x channel %d SSID %s\n",
1061 action, priv->mesh_tlv, chan,
1062 escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1063
1064 return lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
1065 }
1066
1067 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1068 struct cmd_ds_command *cmd,
1069 u16 cmd_action)
1070 {
1071 struct cmd_ds_802_11_beacon_control
1072 *bcn_ctrl = &cmd->params.bcn_ctrl;
1073
1074 lbs_deb_enter(LBS_DEB_CMD);
1075 cmd->size =
1076 cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1077 + S_DS_GEN);
1078 cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1079
1080 bcn_ctrl->action = cpu_to_le16(cmd_action);
1081 bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1082 bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1083
1084 lbs_deb_leave(LBS_DEB_CMD);
1085 return 0;
1086 }
1087
1088 static void lbs_queue_cmd(struct lbs_private *priv,
1089 struct cmd_ctrl_node *cmdnode)
1090 {
1091 unsigned long flags;
1092 int addtail = 1;
1093
1094 lbs_deb_enter(LBS_DEB_HOST);
1095
1096 if (!cmdnode) {
1097 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1098 goto done;
1099 }
1100 if (!cmdnode->cmdbuf->size) {
1101 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1102 goto done;
1103 }
1104 cmdnode->result = 0;
1105
1106 /* Exit_PS command needs to be queued in the header always. */
1107 if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1108 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1109
1110 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1111 if (priv->psstate != PS_STATE_FULL_POWER)
1112 addtail = 0;
1113 }
1114 }
1115
1116 spin_lock_irqsave(&priv->driver_lock, flags);
1117
1118 if (addtail)
1119 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1120 else
1121 list_add(&cmdnode->list, &priv->cmdpendingq);
1122
1123 spin_unlock_irqrestore(&priv->driver_lock, flags);
1124
1125 lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1126 le16_to_cpu(cmdnode->cmdbuf->command));
1127
1128 done:
1129 lbs_deb_leave(LBS_DEB_HOST);
1130 }
1131
1132 static void lbs_submit_command(struct lbs_private *priv,
1133 struct cmd_ctrl_node *cmdnode)
1134 {
1135 unsigned long flags;
1136 struct cmd_header *cmd;
1137 uint16_t cmdsize;
1138 uint16_t command;
1139 int timeo = 5 * HZ;
1140 int ret;
1141
1142 lbs_deb_enter(LBS_DEB_HOST);
1143
1144 cmd = cmdnode->cmdbuf;
1145
1146 spin_lock_irqsave(&priv->driver_lock, flags);
1147 priv->cur_cmd = cmdnode;
1148 priv->cur_cmd_retcode = 0;
1149 spin_unlock_irqrestore(&priv->driver_lock, flags);
1150
1151 cmdsize = le16_to_cpu(cmd->size);
1152 command = le16_to_cpu(cmd->command);
1153
1154 /* These commands take longer */
1155 if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1156 command == CMD_802_11_AUTHENTICATE)
1157 timeo = 10 * HZ;
1158
1159 lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1160 command, le16_to_cpu(cmd->seqnum), cmdsize);
1161 lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1162
1163 ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1164
1165 if (ret) {
1166 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1167 /* Let the timer kick in and retry, and potentially reset
1168 the whole thing if the condition persists */
1169 timeo = HZ;
1170 }
1171
1172 /* Setup the timer after transmit command */
1173 mod_timer(&priv->command_timer, jiffies + timeo);
1174
1175 lbs_deb_leave(LBS_DEB_HOST);
1176 }
1177
1178 /**
1179 * This function inserts command node to cmdfreeq
1180 * after cleans it. Requires priv->driver_lock held.
1181 */
1182 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1183 struct cmd_ctrl_node *cmdnode)
1184 {
1185 lbs_deb_enter(LBS_DEB_HOST);
1186
1187 if (!cmdnode)
1188 goto out;
1189
1190 cmdnode->callback = NULL;
1191 cmdnode->callback_arg = 0;
1192
1193 memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1194
1195 list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1196 out:
1197 lbs_deb_leave(LBS_DEB_HOST);
1198 }
1199
1200 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1201 struct cmd_ctrl_node *ptempcmd)
1202 {
1203 unsigned long flags;
1204
1205 spin_lock_irqsave(&priv->driver_lock, flags);
1206 __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1207 spin_unlock_irqrestore(&priv->driver_lock, flags);
1208 }
1209
1210 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1211 int result)
1212 {
1213 if (cmd == priv->cur_cmd)
1214 priv->cur_cmd_retcode = result;
1215
1216 cmd->result = result;
1217 cmd->cmdwaitqwoken = 1;
1218 wake_up_interruptible(&cmd->cmdwait_q);
1219
1220 if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1221 __lbs_cleanup_and_insert_cmd(priv, cmd);
1222 priv->cur_cmd = NULL;
1223 }
1224
1225 int lbs_set_radio_control(struct lbs_private *priv)
1226 {
1227 int ret = 0;
1228 struct cmd_ds_802_11_radio_control cmd;
1229
1230 lbs_deb_enter(LBS_DEB_CMD);
1231
1232 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1233 cmd.action = cpu_to_le16(CMD_ACT_SET);
1234
1235 switch (priv->preamble) {
1236 case CMD_TYPE_SHORT_PREAMBLE:
1237 cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
1238 break;
1239
1240 case CMD_TYPE_LONG_PREAMBLE:
1241 cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
1242 break;
1243
1244 case CMD_TYPE_AUTO_PREAMBLE:
1245 default:
1246 cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
1247 break;
1248 }
1249
1250 if (priv->radioon)
1251 cmd.control |= cpu_to_le16(TURN_ON_RF);
1252 else
1253 cmd.control &= cpu_to_le16(~TURN_ON_RF);
1254
1255 lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon,
1256 priv->preamble);
1257
1258 ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1259
1260 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1261 return ret;
1262 }
1263
1264 void lbs_set_mac_control(struct lbs_private *priv)
1265 {
1266 struct cmd_ds_mac_control cmd;
1267
1268 lbs_deb_enter(LBS_DEB_CMD);
1269
1270 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1271 cmd.action = cpu_to_le16(priv->mac_control);
1272 cmd.reserved = 0;
1273
1274 lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
1275
1276 lbs_deb_leave(LBS_DEB_CMD);
1277 }
1278
1279 /**
1280 * @brief This function prepare the command before send to firmware.
1281 *
1282 * @param priv A pointer to struct lbs_private structure
1283 * @param cmd_no command number
1284 * @param cmd_action command action: GET or SET
1285 * @param wait_option wait option: wait response or not
1286 * @param cmd_oid cmd oid: treated as sub command
1287 * @param pdata_buf A pointer to informaion buffer
1288 * @return 0 or -1
1289 */
1290 int lbs_prepare_and_send_command(struct lbs_private *priv,
1291 u16 cmd_no,
1292 u16 cmd_action,
1293 u16 wait_option, u32 cmd_oid, void *pdata_buf)
1294 {
1295 int ret = 0;
1296 struct cmd_ctrl_node *cmdnode;
1297 struct cmd_ds_command *cmdptr;
1298 unsigned long flags;
1299
1300 lbs_deb_enter(LBS_DEB_HOST);
1301
1302 if (!priv) {
1303 lbs_deb_host("PREP_CMD: priv is NULL\n");
1304 ret = -1;
1305 goto done;
1306 }
1307
1308 if (priv->surpriseremoved) {
1309 lbs_deb_host("PREP_CMD: card removed\n");
1310 ret = -1;
1311 goto done;
1312 }
1313
1314 cmdnode = lbs_get_cmd_ctrl_node(priv);
1315
1316 if (cmdnode == NULL) {
1317 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1318
1319 /* Wake up main thread to execute next command */
1320 wake_up_interruptible(&priv->waitq);
1321 ret = -1;
1322 goto done;
1323 }
1324
1325 cmdnode->callback = NULL;
1326 cmdnode->callback_arg = (unsigned long)pdata_buf;
1327
1328 cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1329
1330 lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1331
1332 /* Set sequence number, command and INT option */
1333 priv->seqnum++;
1334 cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1335
1336 cmdptr->command = cpu_to_le16(cmd_no);
1337 cmdptr->result = 0;
1338
1339 switch (cmd_no) {
1340 case CMD_802_11_PS_MODE:
1341 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1342 break;
1343
1344 case CMD_802_11_ASSOCIATE:
1345 case CMD_802_11_REASSOCIATE:
1346 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1347 break;
1348
1349 case CMD_802_11_DEAUTHENTICATE:
1350 ret = lbs_cmd_80211_deauthenticate(priv, cmdptr);
1351 break;
1352
1353 case CMD_802_11_AD_HOC_START:
1354 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1355 break;
1356
1357 case CMD_802_11_RESET:
1358 ret = lbs_cmd_802_11_reset(cmdptr, cmd_action);
1359 break;
1360
1361 case CMD_802_11_AUTHENTICATE:
1362 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1363 break;
1364
1365 case CMD_802_11_SNMP_MIB:
1366 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1367 cmd_action, cmd_oid, pdata_buf);
1368 break;
1369
1370 case CMD_MAC_REG_ACCESS:
1371 case CMD_BBP_REG_ACCESS:
1372 case CMD_RF_REG_ACCESS:
1373 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1374 break;
1375
1376 case CMD_802_11_RF_TX_POWER:
1377 ret = lbs_cmd_802_11_rf_tx_power(cmdptr,
1378 cmd_action, pdata_buf);
1379 break;
1380
1381 case CMD_802_11_RATE_ADAPT_RATESET:
1382 ret = lbs_cmd_802_11_rate_adapt_rateset(priv,
1383 cmdptr, cmd_action);
1384 break;
1385
1386 case CMD_802_11_MONITOR_MODE:
1387 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1388 cmd_action, pdata_buf);
1389 break;
1390
1391 case CMD_802_11_AD_HOC_JOIN:
1392 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1393 break;
1394
1395 case CMD_802_11_RSSI:
1396 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1397 break;
1398
1399 case CMD_802_11_AD_HOC_STOP:
1400 ret = lbs_cmd_80211_ad_hoc_stop(cmdptr);
1401 break;
1402
1403 case CMD_802_11_SET_AFC:
1404 case CMD_802_11_GET_AFC:
1405
1406 cmdptr->command = cpu_to_le16(cmd_no);
1407 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1408 S_DS_GEN);
1409
1410 memmove(&cmdptr->params.afc,
1411 pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1412
1413 ret = 0;
1414 goto done;
1415
1416 case CMD_802_11D_DOMAIN_INFO:
1417 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1418 cmd_no, cmd_action);
1419 break;
1420
1421 case CMD_802_11_TPC_CFG:
1422 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1423 cmdptr->size =
1424 cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1425 S_DS_GEN);
1426
1427 memmove(&cmdptr->params.tpccfg,
1428 pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1429
1430 ret = 0;
1431 break;
1432 case CMD_802_11_LED_GPIO_CTRL:
1433 {
1434 struct mrvlietypes_ledgpio *gpio =
1435 (struct mrvlietypes_ledgpio*)
1436 cmdptr->params.ledgpio.data;
1437
1438 memmove(&cmdptr->params.ledgpio,
1439 pdata_buf,
1440 sizeof(struct cmd_ds_802_11_led_ctrl));
1441
1442 cmdptr->command =
1443 cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1444
1445 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1446 cmdptr->size =
1447 cpu_to_le16(le16_to_cpu(gpio->header.len)
1448 + S_DS_GEN
1449 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1450 gpio->header.len = gpio->header.len;
1451
1452 ret = 0;
1453 break;
1454 }
1455
1456 case CMD_BT_ACCESS:
1457 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1458 break;
1459
1460 case CMD_FWT_ACCESS:
1461 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1462 break;
1463
1464 case CMD_GET_TSF:
1465 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1466 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1467 S_DS_GEN);
1468 ret = 0;
1469 break;
1470 case CMD_802_11_BEACON_CTRL:
1471 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1472 break;
1473 default:
1474 lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1475 ret = -1;
1476 break;
1477 }
1478
1479 /* return error, since the command preparation failed */
1480 if (ret != 0) {
1481 lbs_deb_host("PREP_CMD: command preparation failed\n");
1482 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1483 ret = -1;
1484 goto done;
1485 }
1486
1487 cmdnode->cmdwaitqwoken = 0;
1488
1489 lbs_queue_cmd(priv, cmdnode);
1490 wake_up_interruptible(&priv->waitq);
1491
1492 if (wait_option & CMD_OPTION_WAITFORRSP) {
1493 lbs_deb_host("PREP_CMD: wait for response\n");
1494 might_sleep();
1495 wait_event_interruptible(cmdnode->cmdwait_q,
1496 cmdnode->cmdwaitqwoken);
1497 }
1498
1499 spin_lock_irqsave(&priv->driver_lock, flags);
1500 if (priv->cur_cmd_retcode) {
1501 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1502 priv->cur_cmd_retcode);
1503 priv->cur_cmd_retcode = 0;
1504 ret = -1;
1505 }
1506 spin_unlock_irqrestore(&priv->driver_lock, flags);
1507
1508 done:
1509 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1510 return ret;
1511 }
1512
1513 /**
1514 * @brief This function allocates the command buffer and link
1515 * it to command free queue.
1516 *
1517 * @param priv A pointer to struct lbs_private structure
1518 * @return 0 or -1
1519 */
1520 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1521 {
1522 int ret = 0;
1523 u32 bufsize;
1524 u32 i;
1525 struct cmd_ctrl_node *cmdarray;
1526
1527 lbs_deb_enter(LBS_DEB_HOST);
1528
1529 /* Allocate and initialize the command array */
1530 bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1531 if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1532 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1533 ret = -1;
1534 goto done;
1535 }
1536 priv->cmd_array = cmdarray;
1537
1538 /* Allocate and initialize each command buffer in the command array */
1539 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1540 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1541 if (!cmdarray[i].cmdbuf) {
1542 lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1543 ret = -1;
1544 goto done;
1545 }
1546 }
1547
1548 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1549 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1550 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1551 }
1552 ret = 0;
1553
1554 done:
1555 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1556 return ret;
1557 }
1558
1559 /**
1560 * @brief This function frees the command buffer.
1561 *
1562 * @param priv A pointer to struct lbs_private structure
1563 * @return 0 or -1
1564 */
1565 int lbs_free_cmd_buffer(struct lbs_private *priv)
1566 {
1567 struct cmd_ctrl_node *cmdarray;
1568 unsigned int i;
1569
1570 lbs_deb_enter(LBS_DEB_HOST);
1571
1572 /* need to check if cmd array is allocated or not */
1573 if (priv->cmd_array == NULL) {
1574 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1575 goto done;
1576 }
1577
1578 cmdarray = priv->cmd_array;
1579
1580 /* Release shared memory buffers */
1581 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1582 if (cmdarray[i].cmdbuf) {
1583 kfree(cmdarray[i].cmdbuf);
1584 cmdarray[i].cmdbuf = NULL;
1585 }
1586 }
1587
1588 /* Release cmd_ctrl_node */
1589 if (priv->cmd_array) {
1590 kfree(priv->cmd_array);
1591 priv->cmd_array = NULL;
1592 }
1593
1594 done:
1595 lbs_deb_leave(LBS_DEB_HOST);
1596 return 0;
1597 }
1598
1599 /**
1600 * @brief This function gets a free command node if available in
1601 * command free queue.
1602 *
1603 * @param priv A pointer to struct lbs_private structure
1604 * @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1605 */
1606 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1607 {
1608 struct cmd_ctrl_node *tempnode;
1609 unsigned long flags;
1610
1611 lbs_deb_enter(LBS_DEB_HOST);
1612
1613 if (!priv)
1614 return NULL;
1615
1616 spin_lock_irqsave(&priv->driver_lock, flags);
1617
1618 if (!list_empty(&priv->cmdfreeq)) {
1619 tempnode = list_first_entry(&priv->cmdfreeq,
1620 struct cmd_ctrl_node, list);
1621 list_del(&tempnode->list);
1622 } else {
1623 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1624 tempnode = NULL;
1625 }
1626
1627 spin_unlock_irqrestore(&priv->driver_lock, flags);
1628
1629 lbs_deb_leave(LBS_DEB_HOST);
1630 return tempnode;
1631 }
1632
1633 /**
1634 * @brief This function executes next command in command
1635 * pending queue. It will put fimware back to PS mode
1636 * if applicable.
1637 *
1638 * @param priv A pointer to struct lbs_private structure
1639 * @return 0 or -1
1640 */
1641 int lbs_execute_next_command(struct lbs_private *priv)
1642 {
1643 struct cmd_ctrl_node *cmdnode = NULL;
1644 struct cmd_header *cmd;
1645 unsigned long flags;
1646 int ret = 0;
1647
1648 /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1649 * only caller to us is lbs_thread() and we get even when a
1650 * data packet is received */
1651 lbs_deb_enter(LBS_DEB_THREAD);
1652
1653 spin_lock_irqsave(&priv->driver_lock, flags);
1654
1655 if (priv->cur_cmd) {
1656 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1657 spin_unlock_irqrestore(&priv->driver_lock, flags);
1658 ret = -1;
1659 goto done;
1660 }
1661
1662 if (!list_empty(&priv->cmdpendingq)) {
1663 cmdnode = list_first_entry(&priv->cmdpendingq,
1664 struct cmd_ctrl_node, list);
1665 }
1666
1667 spin_unlock_irqrestore(&priv->driver_lock, flags);
1668
1669 if (cmdnode) {
1670 cmd = cmdnode->cmdbuf;
1671
1672 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1673 if ((priv->psstate == PS_STATE_SLEEP) ||
1674 (priv->psstate == PS_STATE_PRE_SLEEP)) {
1675 lbs_deb_host(
1676 "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1677 le16_to_cpu(cmd->command),
1678 priv->psstate);
1679 ret = -1;
1680 goto done;
1681 }
1682 lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1683 "0x%04x in psstate %d\n",
1684 le16_to_cpu(cmd->command), priv->psstate);
1685 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1686 /*
1687 * 1. Non-PS command:
1688 * Queue it. set needtowakeup to TRUE if current state
1689 * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1690 * 2. PS command but not Exit_PS:
1691 * Ignore it.
1692 * 3. PS command Exit_PS:
1693 * Set needtowakeup to TRUE if current state is SLEEP,
1694 * otherwise send this command down to firmware
1695 * immediately.
1696 */
1697 if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1698 /* Prepare to send Exit PS,
1699 * this non PS command will be sent later */
1700 if ((priv->psstate == PS_STATE_SLEEP)
1701 || (priv->psstate == PS_STATE_PRE_SLEEP)
1702 ) {
1703 /* w/ new scheme, it will not reach here.
1704 since it is blocked in main_thread. */
1705 priv->needtowakeup = 1;
1706 } else
1707 lbs_ps_wakeup(priv, 0);
1708
1709 ret = 0;
1710 goto done;
1711 } else {
1712 /*
1713 * PS command. Ignore it if it is not Exit_PS.
1714 * otherwise send it down immediately.
1715 */
1716 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1717
1718 lbs_deb_host(
1719 "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1720 psm->action);
1721 if (psm->action !=
1722 cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1723 lbs_deb_host(
1724 "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1725 list_del(&cmdnode->list);
1726 spin_lock_irqsave(&priv->driver_lock, flags);
1727 lbs_complete_command(priv, cmdnode, 0);
1728 spin_unlock_irqrestore(&priv->driver_lock, flags);
1729
1730 ret = 0;
1731 goto done;
1732 }
1733
1734 if ((priv->psstate == PS_STATE_SLEEP) ||
1735 (priv->psstate == PS_STATE_PRE_SLEEP)) {
1736 lbs_deb_host(
1737 "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\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 priv->needtowakeup = 1;
1743
1744 ret = 0;
1745 goto done;
1746 }
1747
1748 lbs_deb_host(
1749 "EXEC_NEXT_CMD: sending EXIT_PS\n");
1750 }
1751 }
1752 list_del(&cmdnode->list);
1753 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1754 le16_to_cpu(cmd->command));
1755 lbs_submit_command(priv, cmdnode);
1756 } else {
1757 /*
1758 * check if in power save mode, if yes, put the device back
1759 * to PS mode
1760 */
1761 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1762 (priv->psstate == PS_STATE_FULL_POWER) &&
1763 ((priv->connect_status == LBS_CONNECTED) ||
1764 (priv->mesh_connect_status == LBS_CONNECTED))) {
1765 if (priv->secinfo.WPAenabled ||
1766 priv->secinfo.WPA2enabled) {
1767 /* check for valid WPA group keys */
1768 if (priv->wpa_mcast_key.len ||
1769 priv->wpa_unicast_key.len) {
1770 lbs_deb_host(
1771 "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1772 " go back to PS_SLEEP");
1773 lbs_ps_sleep(priv, 0);
1774 }
1775 } else {
1776 lbs_deb_host(
1777 "EXEC_NEXT_CMD: cmdpendingq empty, "
1778 "go back to PS_SLEEP");
1779 lbs_ps_sleep(priv, 0);
1780 }
1781 }
1782 }
1783
1784 ret = 0;
1785 done:
1786 lbs_deb_leave(LBS_DEB_THREAD);
1787 return ret;
1788 }
1789
1790 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1791 {
1792 union iwreq_data iwrq;
1793 u8 buf[50];
1794
1795 lbs_deb_enter(LBS_DEB_WEXT);
1796
1797 memset(&iwrq, 0, sizeof(union iwreq_data));
1798 memset(buf, 0, sizeof(buf));
1799
1800 snprintf(buf, sizeof(buf) - 1, "%s", str);
1801
1802 iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1803
1804 /* Send Event to upper layer */
1805 lbs_deb_wext("event indication string %s\n", (char *)buf);
1806 lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1807 lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1808
1809 wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1810
1811 lbs_deb_leave(LBS_DEB_WEXT);
1812 }
1813
1814 static void lbs_send_confirmsleep(struct lbs_private *priv)
1815 {
1816 unsigned long flags;
1817 int ret;
1818
1819 lbs_deb_enter(LBS_DEB_HOST);
1820 lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1821 sizeof(confirm_sleep));
1822
1823 ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1824 sizeof(confirm_sleep));
1825 if (ret) {
1826 lbs_pr_alert("confirm_sleep failed\n");
1827 goto out;
1828 }
1829
1830 spin_lock_irqsave(&priv->driver_lock, flags);
1831
1832 /* If nothing to do, go back to sleep (?) */
1833 if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1834 priv->psstate = PS_STATE_SLEEP;
1835
1836 spin_unlock_irqrestore(&priv->driver_lock, flags);
1837
1838 out:
1839 lbs_deb_leave(LBS_DEB_HOST);
1840 }
1841
1842 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1843 {
1844 lbs_deb_enter(LBS_DEB_HOST);
1845
1846 /*
1847 * PS is currently supported only in Infrastructure mode
1848 * Remove this check if it is to be supported in IBSS mode also
1849 */
1850
1851 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1852 CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1853
1854 lbs_deb_leave(LBS_DEB_HOST);
1855 }
1856
1857 /**
1858 * @brief This function sends Exit_PS command to firmware.
1859 *
1860 * @param priv A pointer to struct lbs_private structure
1861 * @param wait_option wait response or not
1862 * @return n/a
1863 */
1864 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1865 {
1866 __le32 Localpsmode;
1867
1868 lbs_deb_enter(LBS_DEB_HOST);
1869
1870 Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1871
1872 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1873 CMD_SUBCMD_EXIT_PS,
1874 wait_option, 0, &Localpsmode);
1875
1876 lbs_deb_leave(LBS_DEB_HOST);
1877 }
1878
1879 /**
1880 * @brief This function checks condition and prepares to
1881 * send sleep confirm command to firmware if ok.
1882 *
1883 * @param priv A pointer to struct lbs_private structure
1884 * @param psmode Power Saving mode
1885 * @return n/a
1886 */
1887 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1888 {
1889 unsigned long flags =0;
1890 int allowed = 1;
1891
1892 lbs_deb_enter(LBS_DEB_HOST);
1893
1894 if (priv->dnld_sent) {
1895 allowed = 0;
1896 lbs_deb_host("dnld_sent was set\n");
1897 }
1898
1899 spin_lock_irqsave(&priv->driver_lock, flags);
1900 /* In-progress command? */
1901 if (priv->cur_cmd) {
1902 allowed = 0;
1903 lbs_deb_host("cur_cmd was set\n");
1904 }
1905
1906 /* Pending events or command responses? */
1907 if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
1908 allowed = 0;
1909 lbs_deb_host("pending events or command responses\n");
1910 }
1911 spin_unlock_irqrestore(&priv->driver_lock, flags);
1912
1913 if (allowed) {
1914 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1915 lbs_send_confirmsleep(priv);
1916 } else {
1917 lbs_deb_host("sleep confirm has been delayed\n");
1918 }
1919
1920 lbs_deb_leave(LBS_DEB_HOST);
1921 }
1922
1923
1924 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1925 uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1926 int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1927 unsigned long callback_arg)
1928 {
1929 struct cmd_ctrl_node *cmdnode;
1930
1931 lbs_deb_enter(LBS_DEB_HOST);
1932
1933 if (priv->surpriseremoved) {
1934 lbs_deb_host("PREP_CMD: card removed\n");
1935 cmdnode = ERR_PTR(-ENOENT);
1936 goto done;
1937 }
1938
1939 cmdnode = lbs_get_cmd_ctrl_node(priv);
1940 if (cmdnode == NULL) {
1941 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1942
1943 /* Wake up main thread to execute next command */
1944 wake_up_interruptible(&priv->waitq);
1945 cmdnode = ERR_PTR(-ENOBUFS);
1946 goto done;
1947 }
1948
1949 cmdnode->callback = callback;
1950 cmdnode->callback_arg = callback_arg;
1951
1952 /* Copy the incoming command to the buffer */
1953 memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
1954
1955 /* Set sequence number, clean result, move to buffer */
1956 priv->seqnum++;
1957 cmdnode->cmdbuf->command = cpu_to_le16(command);
1958 cmdnode->cmdbuf->size = cpu_to_le16(in_cmd_size);
1959 cmdnode->cmdbuf->seqnum = cpu_to_le16(priv->seqnum);
1960 cmdnode->cmdbuf->result = 0;
1961
1962 lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
1963
1964 cmdnode->cmdwaitqwoken = 0;
1965 lbs_queue_cmd(priv, cmdnode);
1966 wake_up_interruptible(&priv->waitq);
1967
1968 done:
1969 lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
1970 return cmdnode;
1971 }
1972
1973 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
1974 struct cmd_header *in_cmd, int in_cmd_size)
1975 {
1976 lbs_deb_enter(LBS_DEB_CMD);
1977 __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
1978 lbs_cmd_async_callback, 0);
1979 lbs_deb_leave(LBS_DEB_CMD);
1980 }
1981
1982 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
1983 struct cmd_header *in_cmd, int in_cmd_size,
1984 int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1985 unsigned long callback_arg)
1986 {
1987 struct cmd_ctrl_node *cmdnode;
1988 unsigned long flags;
1989 int ret = 0;
1990
1991 lbs_deb_enter(LBS_DEB_HOST);
1992
1993 cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
1994 callback, callback_arg);
1995 if (IS_ERR(cmdnode)) {
1996 ret = PTR_ERR(cmdnode);
1997 goto done;
1998 }
1999
2000 might_sleep();
2001 wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2002
2003 spin_lock_irqsave(&priv->driver_lock, flags);
2004 ret = cmdnode->result;
2005 if (ret)
2006 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2007 command, ret);
2008
2009 __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2010 spin_unlock_irqrestore(&priv->driver_lock, flags);
2011
2012 done:
2013 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2014 return ret;
2015 }
2016 EXPORT_SYMBOL_GPL(__lbs_cmd);
2017
2018
kernel source for telekom puls (alcatel/mediatek)