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[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 <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 Set the data rate
701 *
702 * @param priv A pointer to struct lbs_private structure
703 * @param rate The desired data rate, or 0 to clear a locked rate
704 *
705 * @return 0 on success, error on failure
706 */
707 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
708 {
709 struct cmd_ds_802_11_data_rate cmd;
710 int ret = 0;
711
712 lbs_deb_enter(LBS_DEB_CMD);
713
714 memset(&cmd, 0, sizeof(cmd));
715 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
716
717 if (rate > 0) {
718 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
719 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
720 if (cmd.rates[0] == 0) {
721 lbs_deb_cmd("DATA_RATE: invalid requested rate of"
722 " 0x%02X\n", rate);
723 ret = 0;
724 goto out;
725 }
726 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
727 } else {
728 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
729 lbs_deb_cmd("DATA_RATE: setting auto\n");
730 }
731
732 ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
733 if (ret)
734 goto out;
735
736 lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
737
738 /* FIXME: get actual rates FW can do if this command actually returns
739 * all data rates supported.
740 */
741 priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
742 lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
743
744 out:
745 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
746 return ret;
747 }
748
749 /**
750 * @brief Get the radio channel
751 *
752 * @param priv A pointer to struct lbs_private structure
753 *
754 * @return The channel on success, error on failure
755 */
756 int lbs_get_channel(struct lbs_private *priv)
757 {
758 struct cmd_ds_802_11_rf_channel cmd;
759 int ret = 0;
760
761 lbs_deb_enter(LBS_DEB_CMD);
762
763 memset(&cmd, 0, sizeof(cmd));
764 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
765 cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
766
767 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
768 if (ret)
769 goto out;
770
771 ret = le16_to_cpu(cmd.channel);
772 lbs_deb_cmd("current radio channel is %d\n", ret);
773
774 out:
775 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
776 return ret;
777 }
778
779 int lbs_update_channel(struct lbs_private *priv)
780 {
781 int ret;
782
783 /* the channel in f/w could be out of sync; get the current channel */
784 lbs_deb_enter(LBS_DEB_ASSOC);
785
786 ret = lbs_get_channel(priv);
787 if (ret > 0) {
788 priv->curbssparams.channel = ret;
789 ret = 0;
790 }
791 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
792 return ret;
793 }
794
795 /**
796 * @brief Set the radio channel
797 *
798 * @param priv A pointer to struct lbs_private structure
799 * @param channel The desired channel, or 0 to clear a locked channel
800 *
801 * @return 0 on success, error on failure
802 */
803 int lbs_set_channel(struct lbs_private *priv, u8 channel)
804 {
805 struct cmd_ds_802_11_rf_channel cmd;
806 u8 old_channel = priv->curbssparams.channel;
807 int ret = 0;
808
809 lbs_deb_enter(LBS_DEB_CMD);
810
811 memset(&cmd, 0, sizeof(cmd));
812 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
813 cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
814 cmd.channel = cpu_to_le16(channel);
815
816 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
817 if (ret)
818 goto out;
819
820 priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
821 lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
822 priv->curbssparams.channel);
823
824 out:
825 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
826 return ret;
827 }
828
829 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
830 struct cmd_ds_command *cmd)
831 {
832
833 lbs_deb_enter(LBS_DEB_CMD);
834 cmd->command = cpu_to_le16(CMD_802_11_RSSI);
835 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
836 cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
837
838 /* reset Beacon SNR/NF/RSSI values */
839 priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
840 priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
841 priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
842 priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
843 priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
844 priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
845
846 lbs_deb_leave(LBS_DEB_CMD);
847 return 0;
848 }
849
850 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
851 u8 cmd_action, void *pdata_buf)
852 {
853 struct lbs_offset_value *offval;
854
855 lbs_deb_enter(LBS_DEB_CMD);
856
857 offval = (struct lbs_offset_value *)pdata_buf;
858
859 switch (le16_to_cpu(cmdptr->command)) {
860 case CMD_MAC_REG_ACCESS:
861 {
862 struct cmd_ds_mac_reg_access *macreg;
863
864 cmdptr->size =
865 cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
866 + S_DS_GEN);
867 macreg =
868 (struct cmd_ds_mac_reg_access *)&cmdptr->params.
869 macreg;
870
871 macreg->action = cpu_to_le16(cmd_action);
872 macreg->offset = cpu_to_le16((u16) offval->offset);
873 macreg->value = cpu_to_le32(offval->value);
874
875 break;
876 }
877
878 case CMD_BBP_REG_ACCESS:
879 {
880 struct cmd_ds_bbp_reg_access *bbpreg;
881
882 cmdptr->size =
883 cpu_to_le16(sizeof
884 (struct cmd_ds_bbp_reg_access)
885 + S_DS_GEN);
886 bbpreg =
887 (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
888 bbpreg;
889
890 bbpreg->action = cpu_to_le16(cmd_action);
891 bbpreg->offset = cpu_to_le16((u16) offval->offset);
892 bbpreg->value = (u8) offval->value;
893
894 break;
895 }
896
897 case CMD_RF_REG_ACCESS:
898 {
899 struct cmd_ds_rf_reg_access *rfreg;
900
901 cmdptr->size =
902 cpu_to_le16(sizeof
903 (struct cmd_ds_rf_reg_access) +
904 S_DS_GEN);
905 rfreg =
906 (struct cmd_ds_rf_reg_access *)&cmdptr->params.
907 rfreg;
908
909 rfreg->action = cpu_to_le16(cmd_action);
910 rfreg->offset = cpu_to_le16((u16) offval->offset);
911 rfreg->value = (u8) offval->value;
912
913 break;
914 }
915
916 default:
917 break;
918 }
919
920 lbs_deb_leave(LBS_DEB_CMD);
921 return 0;
922 }
923
924 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
925 u16 cmd_action, void *pdata_buf)
926 {
927 struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
928 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
929
930 cmd->command = cpu_to_le16(CMD_BT_ACCESS);
931 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
932 cmd->result = 0;
933 bt_access->action = cpu_to_le16(cmd_action);
934
935 switch (cmd_action) {
936 case CMD_ACT_BT_ACCESS_ADD:
937 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
938 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
939 break;
940 case CMD_ACT_BT_ACCESS_DEL:
941 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
942 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
943 break;
944 case CMD_ACT_BT_ACCESS_LIST:
945 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
946 break;
947 case CMD_ACT_BT_ACCESS_RESET:
948 break;
949 case CMD_ACT_BT_ACCESS_SET_INVERT:
950 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
951 break;
952 case CMD_ACT_BT_ACCESS_GET_INVERT:
953 break;
954 default:
955 break;
956 }
957 lbs_deb_leave(LBS_DEB_CMD);
958 return 0;
959 }
960
961 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
962 u16 cmd_action, void *pdata_buf)
963 {
964 struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
965 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
966
967 cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
968 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
969 cmd->result = 0;
970
971 if (pdata_buf)
972 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
973 else
974 memset(fwt_access, 0, sizeof(*fwt_access));
975
976 fwt_access->action = cpu_to_le16(cmd_action);
977
978 lbs_deb_leave(LBS_DEB_CMD);
979 return 0;
980 }
981
982 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
983 struct cmd_ds_mesh_access *cmd)
984 {
985 int ret;
986
987 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
988
989 cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
990 cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
991 cmd->hdr.result = 0;
992
993 cmd->action = cpu_to_le16(cmd_action);
994
995 ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
996
997 lbs_deb_leave(LBS_DEB_CMD);
998 return ret;
999 }
1000
1001 int lbs_mesh_config(struct lbs_private *priv, uint16_t enable, uint16_t chan)
1002 {
1003 struct cmd_ds_mesh_config cmd;
1004
1005 memset(&cmd, 0, sizeof(cmd));
1006 cmd.action = cpu_to_le16(enable);
1007 cmd.channel = cpu_to_le16(chan);
1008 cmd.type = cpu_to_le16(priv->mesh_tlv);
1009 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1010
1011 if (enable) {
1012 cmd.length = cpu_to_le16(priv->mesh_ssid_len);
1013 memcpy(cmd.data, priv->mesh_ssid, priv->mesh_ssid_len);
1014 }
1015 lbs_deb_cmd("mesh config enable %d TLV %x channel %d SSID %s\n",
1016 enable, priv->mesh_tlv, chan,
1017 escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1018 return lbs_cmd_with_response(priv, CMD_MESH_CONFIG, &cmd);
1019 }
1020
1021 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1022 struct cmd_ds_command *cmd,
1023 u16 cmd_action)
1024 {
1025 struct cmd_ds_802_11_beacon_control
1026 *bcn_ctrl = &cmd->params.bcn_ctrl;
1027
1028 lbs_deb_enter(LBS_DEB_CMD);
1029 cmd->size =
1030 cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1031 + S_DS_GEN);
1032 cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1033
1034 bcn_ctrl->action = cpu_to_le16(cmd_action);
1035 bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1036 bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1037
1038 lbs_deb_leave(LBS_DEB_CMD);
1039 return 0;
1040 }
1041
1042 static void lbs_queue_cmd(struct lbs_private *priv,
1043 struct cmd_ctrl_node *cmdnode)
1044 {
1045 unsigned long flags;
1046 int addtail = 1;
1047
1048 lbs_deb_enter(LBS_DEB_HOST);
1049
1050 if (!cmdnode) {
1051 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1052 goto done;
1053 }
1054 if (!cmdnode->cmdbuf->size) {
1055 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1056 goto done;
1057 }
1058 cmdnode->result = 0;
1059
1060 /* Exit_PS command needs to be queued in the header always. */
1061 if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1062 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1063
1064 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1065 if (priv->psstate != PS_STATE_FULL_POWER)
1066 addtail = 0;
1067 }
1068 }
1069
1070 spin_lock_irqsave(&priv->driver_lock, flags);
1071
1072 if (addtail)
1073 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1074 else
1075 list_add(&cmdnode->list, &priv->cmdpendingq);
1076
1077 spin_unlock_irqrestore(&priv->driver_lock, flags);
1078
1079 lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1080 le16_to_cpu(cmdnode->cmdbuf->command));
1081
1082 done:
1083 lbs_deb_leave(LBS_DEB_HOST);
1084 }
1085
1086 static void lbs_submit_command(struct lbs_private *priv,
1087 struct cmd_ctrl_node *cmdnode)
1088 {
1089 unsigned long flags;
1090 struct cmd_header *cmd;
1091 uint16_t cmdsize;
1092 uint16_t command;
1093 int timeo = 5 * HZ;
1094 int ret;
1095
1096 lbs_deb_enter(LBS_DEB_HOST);
1097
1098 cmd = cmdnode->cmdbuf;
1099
1100 spin_lock_irqsave(&priv->driver_lock, flags);
1101 priv->cur_cmd = cmdnode;
1102 priv->cur_cmd_retcode = 0;
1103 spin_unlock_irqrestore(&priv->driver_lock, flags);
1104
1105 cmdsize = le16_to_cpu(cmd->size);
1106 command = le16_to_cpu(cmd->command);
1107
1108 /* These commands take longer */
1109 if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1110 command == CMD_802_11_AUTHENTICATE)
1111 timeo = 10 * HZ;
1112
1113 lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1114 command, le16_to_cpu(cmd->seqnum), cmdsize);
1115 lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1116
1117 ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1118
1119 if (ret) {
1120 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1121 /* Let the timer kick in and retry, and potentially reset
1122 the whole thing if the condition persists */
1123 timeo = HZ;
1124 }
1125
1126 /* Setup the timer after transmit command */
1127 mod_timer(&priv->command_timer, jiffies + timeo);
1128
1129 lbs_deb_leave(LBS_DEB_HOST);
1130 }
1131
1132 /**
1133 * This function inserts command node to cmdfreeq
1134 * after cleans it. Requires priv->driver_lock held.
1135 */
1136 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1137 struct cmd_ctrl_node *cmdnode)
1138 {
1139 lbs_deb_enter(LBS_DEB_HOST);
1140
1141 if (!cmdnode)
1142 goto out;
1143
1144 cmdnode->callback = NULL;
1145 cmdnode->callback_arg = 0;
1146
1147 memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1148
1149 list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1150 out:
1151 lbs_deb_leave(LBS_DEB_HOST);
1152 }
1153
1154 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1155 struct cmd_ctrl_node *ptempcmd)
1156 {
1157 unsigned long flags;
1158
1159 spin_lock_irqsave(&priv->driver_lock, flags);
1160 __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1161 spin_unlock_irqrestore(&priv->driver_lock, flags);
1162 }
1163
1164 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1165 int result)
1166 {
1167 if (cmd == priv->cur_cmd)
1168 priv->cur_cmd_retcode = result;
1169
1170 cmd->result = result;
1171 cmd->cmdwaitqwoken = 1;
1172 wake_up_interruptible(&cmd->cmdwait_q);
1173
1174 if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1175 __lbs_cleanup_and_insert_cmd(priv, cmd);
1176 priv->cur_cmd = NULL;
1177 }
1178
1179 int lbs_set_radio_control(struct lbs_private *priv)
1180 {
1181 int ret = 0;
1182 struct cmd_ds_802_11_radio_control cmd;
1183
1184 lbs_deb_enter(LBS_DEB_CMD);
1185
1186 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1187 cmd.action = cpu_to_le16(CMD_ACT_SET);
1188
1189 switch (priv->preamble) {
1190 case CMD_TYPE_SHORT_PREAMBLE:
1191 cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
1192 break;
1193
1194 case CMD_TYPE_LONG_PREAMBLE:
1195 cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
1196 break;
1197
1198 case CMD_TYPE_AUTO_PREAMBLE:
1199 default:
1200 cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
1201 break;
1202 }
1203
1204 if (priv->radioon)
1205 cmd.control |= cpu_to_le16(TURN_ON_RF);
1206 else
1207 cmd.control &= cpu_to_le16(~TURN_ON_RF);
1208
1209 lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon,
1210 priv->preamble);
1211
1212 ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1213
1214 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1215 return ret;
1216 }
1217
1218 void lbs_set_mac_control(struct lbs_private *priv)
1219 {
1220 struct cmd_ds_mac_control cmd;
1221
1222 lbs_deb_enter(LBS_DEB_CMD);
1223
1224 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1225 cmd.action = cpu_to_le16(priv->mac_control);
1226 cmd.reserved = 0;
1227
1228 lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
1229
1230 lbs_deb_leave(LBS_DEB_CMD);
1231 }
1232
1233 /**
1234 * @brief This function prepare the command before send to firmware.
1235 *
1236 * @param priv A pointer to struct lbs_private structure
1237 * @param cmd_no command number
1238 * @param cmd_action command action: GET or SET
1239 * @param wait_option wait option: wait response or not
1240 * @param cmd_oid cmd oid: treated as sub command
1241 * @param pdata_buf A pointer to informaion buffer
1242 * @return 0 or -1
1243 */
1244 int lbs_prepare_and_send_command(struct lbs_private *priv,
1245 u16 cmd_no,
1246 u16 cmd_action,
1247 u16 wait_option, u32 cmd_oid, void *pdata_buf)
1248 {
1249 int ret = 0;
1250 struct cmd_ctrl_node *cmdnode;
1251 struct cmd_ds_command *cmdptr;
1252 unsigned long flags;
1253
1254 lbs_deb_enter(LBS_DEB_HOST);
1255
1256 if (!priv) {
1257 lbs_deb_host("PREP_CMD: priv is NULL\n");
1258 ret = -1;
1259 goto done;
1260 }
1261
1262 if (priv->surpriseremoved) {
1263 lbs_deb_host("PREP_CMD: card removed\n");
1264 ret = -1;
1265 goto done;
1266 }
1267
1268 cmdnode = lbs_get_cmd_ctrl_node(priv);
1269
1270 if (cmdnode == NULL) {
1271 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1272
1273 /* Wake up main thread to execute next command */
1274 wake_up_interruptible(&priv->waitq);
1275 ret = -1;
1276 goto done;
1277 }
1278
1279 cmdnode->callback = NULL;
1280 cmdnode->callback_arg = (unsigned long)pdata_buf;
1281
1282 cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1283
1284 lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1285
1286 /* Set sequence number, command and INT option */
1287 priv->seqnum++;
1288 cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1289
1290 cmdptr->command = cpu_to_le16(cmd_no);
1291 cmdptr->result = 0;
1292
1293 switch (cmd_no) {
1294 case CMD_802_11_PS_MODE:
1295 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1296 break;
1297
1298 case CMD_802_11_ASSOCIATE:
1299 case CMD_802_11_REASSOCIATE:
1300 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1301 break;
1302
1303 case CMD_802_11_DEAUTHENTICATE:
1304 ret = lbs_cmd_80211_deauthenticate(priv, cmdptr);
1305 break;
1306
1307 case CMD_802_11_AD_HOC_START:
1308 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1309 break;
1310
1311 case CMD_802_11_RESET:
1312 ret = lbs_cmd_802_11_reset(cmdptr, cmd_action);
1313 break;
1314
1315 case CMD_802_11_AUTHENTICATE:
1316 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1317 break;
1318
1319 case CMD_802_11_SNMP_MIB:
1320 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1321 cmd_action, cmd_oid, pdata_buf);
1322 break;
1323
1324 case CMD_MAC_REG_ACCESS:
1325 case CMD_BBP_REG_ACCESS:
1326 case CMD_RF_REG_ACCESS:
1327 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1328 break;
1329
1330 case CMD_802_11_RF_TX_POWER:
1331 ret = lbs_cmd_802_11_rf_tx_power(cmdptr,
1332 cmd_action, pdata_buf);
1333 break;
1334
1335 case CMD_802_11_RATE_ADAPT_RATESET:
1336 ret = lbs_cmd_802_11_rate_adapt_rateset(priv,
1337 cmdptr, cmd_action);
1338 break;
1339
1340 case CMD_802_11_MONITOR_MODE:
1341 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1342 cmd_action, pdata_buf);
1343 break;
1344
1345 case CMD_802_11_AD_HOC_JOIN:
1346 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1347 break;
1348
1349 case CMD_802_11_RSSI:
1350 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1351 break;
1352
1353 case CMD_802_11_AD_HOC_STOP:
1354 ret = lbs_cmd_80211_ad_hoc_stop(cmdptr);
1355 break;
1356
1357 case CMD_802_11_SET_AFC:
1358 case CMD_802_11_GET_AFC:
1359
1360 cmdptr->command = cpu_to_le16(cmd_no);
1361 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1362 S_DS_GEN);
1363
1364 memmove(&cmdptr->params.afc,
1365 pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1366
1367 ret = 0;
1368 goto done;
1369
1370 case CMD_802_11D_DOMAIN_INFO:
1371 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1372 cmd_no, cmd_action);
1373 break;
1374
1375 case CMD_802_11_TPC_CFG:
1376 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1377 cmdptr->size =
1378 cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1379 S_DS_GEN);
1380
1381 memmove(&cmdptr->params.tpccfg,
1382 pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1383
1384 ret = 0;
1385 break;
1386 case CMD_802_11_LED_GPIO_CTRL:
1387 {
1388 struct mrvlietypes_ledgpio *gpio =
1389 (struct mrvlietypes_ledgpio*)
1390 cmdptr->params.ledgpio.data;
1391
1392 memmove(&cmdptr->params.ledgpio,
1393 pdata_buf,
1394 sizeof(struct cmd_ds_802_11_led_ctrl));
1395
1396 cmdptr->command =
1397 cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1398
1399 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1400 cmdptr->size =
1401 cpu_to_le16(le16_to_cpu(gpio->header.len)
1402 + S_DS_GEN
1403 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1404 gpio->header.len = gpio->header.len;
1405
1406 ret = 0;
1407 break;
1408 }
1409
1410 case CMD_BT_ACCESS:
1411 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1412 break;
1413
1414 case CMD_FWT_ACCESS:
1415 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1416 break;
1417
1418 case CMD_GET_TSF:
1419 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1420 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1421 S_DS_GEN);
1422 ret = 0;
1423 break;
1424 case CMD_802_11_BEACON_CTRL:
1425 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1426 break;
1427 default:
1428 lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1429 ret = -1;
1430 break;
1431 }
1432
1433 /* return error, since the command preparation failed */
1434 if (ret != 0) {
1435 lbs_deb_host("PREP_CMD: command preparation failed\n");
1436 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1437 ret = -1;
1438 goto done;
1439 }
1440
1441 cmdnode->cmdwaitqwoken = 0;
1442
1443 lbs_queue_cmd(priv, cmdnode);
1444 wake_up_interruptible(&priv->waitq);
1445
1446 if (wait_option & CMD_OPTION_WAITFORRSP) {
1447 lbs_deb_host("PREP_CMD: wait for response\n");
1448 might_sleep();
1449 wait_event_interruptible(cmdnode->cmdwait_q,
1450 cmdnode->cmdwaitqwoken);
1451 }
1452
1453 spin_lock_irqsave(&priv->driver_lock, flags);
1454 if (priv->cur_cmd_retcode) {
1455 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1456 priv->cur_cmd_retcode);
1457 priv->cur_cmd_retcode = 0;
1458 ret = -1;
1459 }
1460 spin_unlock_irqrestore(&priv->driver_lock, flags);
1461
1462 done:
1463 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1464 return ret;
1465 }
1466
1467 /**
1468 * @brief This function allocates the command buffer and link
1469 * it to command free queue.
1470 *
1471 * @param priv A pointer to struct lbs_private structure
1472 * @return 0 or -1
1473 */
1474 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1475 {
1476 int ret = 0;
1477 u32 bufsize;
1478 u32 i;
1479 struct cmd_ctrl_node *cmdarray;
1480
1481 lbs_deb_enter(LBS_DEB_HOST);
1482
1483 /* Allocate and initialize the command array */
1484 bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1485 if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1486 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1487 ret = -1;
1488 goto done;
1489 }
1490 priv->cmd_array = cmdarray;
1491
1492 /* Allocate and initialize each command buffer in the command array */
1493 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1494 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1495 if (!cmdarray[i].cmdbuf) {
1496 lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1497 ret = -1;
1498 goto done;
1499 }
1500 }
1501
1502 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1503 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1504 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1505 }
1506 ret = 0;
1507
1508 done:
1509 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1510 return ret;
1511 }
1512
1513 /**
1514 * @brief This function frees the command buffer.
1515 *
1516 * @param priv A pointer to struct lbs_private structure
1517 * @return 0 or -1
1518 */
1519 int lbs_free_cmd_buffer(struct lbs_private *priv)
1520 {
1521 struct cmd_ctrl_node *cmdarray;
1522 unsigned int i;
1523
1524 lbs_deb_enter(LBS_DEB_HOST);
1525
1526 /* need to check if cmd array is allocated or not */
1527 if (priv->cmd_array == NULL) {
1528 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1529 goto done;
1530 }
1531
1532 cmdarray = priv->cmd_array;
1533
1534 /* Release shared memory buffers */
1535 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1536 if (cmdarray[i].cmdbuf) {
1537 kfree(cmdarray[i].cmdbuf);
1538 cmdarray[i].cmdbuf = NULL;
1539 }
1540 }
1541
1542 /* Release cmd_ctrl_node */
1543 if (priv->cmd_array) {
1544 kfree(priv->cmd_array);
1545 priv->cmd_array = NULL;
1546 }
1547
1548 done:
1549 lbs_deb_leave(LBS_DEB_HOST);
1550 return 0;
1551 }
1552
1553 /**
1554 * @brief This function gets a free command node if available in
1555 * command free queue.
1556 *
1557 * @param priv A pointer to struct lbs_private structure
1558 * @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1559 */
1560 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1561 {
1562 struct cmd_ctrl_node *tempnode;
1563 unsigned long flags;
1564
1565 lbs_deb_enter(LBS_DEB_HOST);
1566
1567 if (!priv)
1568 return NULL;
1569
1570 spin_lock_irqsave(&priv->driver_lock, flags);
1571
1572 if (!list_empty(&priv->cmdfreeq)) {
1573 tempnode = list_first_entry(&priv->cmdfreeq,
1574 struct cmd_ctrl_node, list);
1575 list_del(&tempnode->list);
1576 } else {
1577 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1578 tempnode = NULL;
1579 }
1580
1581 spin_unlock_irqrestore(&priv->driver_lock, flags);
1582
1583 lbs_deb_leave(LBS_DEB_HOST);
1584 return tempnode;
1585 }
1586
1587 /**
1588 * @brief This function executes next command in command
1589 * pending queue. It will put fimware back to PS mode
1590 * if applicable.
1591 *
1592 * @param priv A pointer to struct lbs_private structure
1593 * @return 0 or -1
1594 */
1595 int lbs_execute_next_command(struct lbs_private *priv)
1596 {
1597 struct cmd_ctrl_node *cmdnode = NULL;
1598 struct cmd_header *cmd;
1599 unsigned long flags;
1600 int ret = 0;
1601
1602 /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1603 * only caller to us is lbs_thread() and we get even when a
1604 * data packet is received */
1605 lbs_deb_enter(LBS_DEB_THREAD);
1606
1607 spin_lock_irqsave(&priv->driver_lock, flags);
1608
1609 if (priv->cur_cmd) {
1610 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1611 spin_unlock_irqrestore(&priv->driver_lock, flags);
1612 ret = -1;
1613 goto done;
1614 }
1615
1616 if (!list_empty(&priv->cmdpendingq)) {
1617 cmdnode = list_first_entry(&priv->cmdpendingq,
1618 struct cmd_ctrl_node, list);
1619 }
1620
1621 spin_unlock_irqrestore(&priv->driver_lock, flags);
1622
1623 if (cmdnode) {
1624 cmd = cmdnode->cmdbuf;
1625
1626 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1627 if ((priv->psstate == PS_STATE_SLEEP) ||
1628 (priv->psstate == PS_STATE_PRE_SLEEP)) {
1629 lbs_deb_host(
1630 "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1631 le16_to_cpu(cmd->command),
1632 priv->psstate);
1633 ret = -1;
1634 goto done;
1635 }
1636 lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1637 "0x%04x in psstate %d\n",
1638 le16_to_cpu(cmd->command), priv->psstate);
1639 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1640 /*
1641 * 1. Non-PS command:
1642 * Queue it. set needtowakeup to TRUE if current state
1643 * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1644 * 2. PS command but not Exit_PS:
1645 * Ignore it.
1646 * 3. PS command Exit_PS:
1647 * Set needtowakeup to TRUE if current state is SLEEP,
1648 * otherwise send this command down to firmware
1649 * immediately.
1650 */
1651 if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1652 /* Prepare to send Exit PS,
1653 * this non PS command will be sent later */
1654 if ((priv->psstate == PS_STATE_SLEEP)
1655 || (priv->psstate == PS_STATE_PRE_SLEEP)
1656 ) {
1657 /* w/ new scheme, it will not reach here.
1658 since it is blocked in main_thread. */
1659 priv->needtowakeup = 1;
1660 } else
1661 lbs_ps_wakeup(priv, 0);
1662
1663 ret = 0;
1664 goto done;
1665 } else {
1666 /*
1667 * PS command. Ignore it if it is not Exit_PS.
1668 * otherwise send it down immediately.
1669 */
1670 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1671
1672 lbs_deb_host(
1673 "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1674 psm->action);
1675 if (psm->action !=
1676 cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1677 lbs_deb_host(
1678 "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1679 list_del(&cmdnode->list);
1680 spin_lock_irqsave(&priv->driver_lock, flags);
1681 lbs_complete_command(priv, cmdnode, 0);
1682 spin_unlock_irqrestore(&priv->driver_lock, flags);
1683
1684 ret = 0;
1685 goto done;
1686 }
1687
1688 if ((priv->psstate == PS_STATE_SLEEP) ||
1689 (priv->psstate == PS_STATE_PRE_SLEEP)) {
1690 lbs_deb_host(
1691 "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1692 list_del(&cmdnode->list);
1693 spin_lock_irqsave(&priv->driver_lock, flags);
1694 lbs_complete_command(priv, cmdnode, 0);
1695 spin_unlock_irqrestore(&priv->driver_lock, flags);
1696 priv->needtowakeup = 1;
1697
1698 ret = 0;
1699 goto done;
1700 }
1701
1702 lbs_deb_host(
1703 "EXEC_NEXT_CMD: sending EXIT_PS\n");
1704 }
1705 }
1706 list_del(&cmdnode->list);
1707 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1708 le16_to_cpu(cmd->command));
1709 lbs_submit_command(priv, cmdnode);
1710 } else {
1711 /*
1712 * check if in power save mode, if yes, put the device back
1713 * to PS mode
1714 */
1715 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1716 (priv->psstate == PS_STATE_FULL_POWER) &&
1717 ((priv->connect_status == LBS_CONNECTED) ||
1718 (priv->mesh_connect_status == LBS_CONNECTED))) {
1719 if (priv->secinfo.WPAenabled ||
1720 priv->secinfo.WPA2enabled) {
1721 /* check for valid WPA group keys */
1722 if (priv->wpa_mcast_key.len ||
1723 priv->wpa_unicast_key.len) {
1724 lbs_deb_host(
1725 "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1726 " go back to PS_SLEEP");
1727 lbs_ps_sleep(priv, 0);
1728 }
1729 } else {
1730 lbs_deb_host(
1731 "EXEC_NEXT_CMD: cmdpendingq empty, "
1732 "go back to PS_SLEEP");
1733 lbs_ps_sleep(priv, 0);
1734 }
1735 }
1736 }
1737
1738 ret = 0;
1739 done:
1740 lbs_deb_leave(LBS_DEB_THREAD);
1741 return ret;
1742 }
1743
1744 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1745 {
1746 union iwreq_data iwrq;
1747 u8 buf[50];
1748
1749 lbs_deb_enter(LBS_DEB_WEXT);
1750
1751 memset(&iwrq, 0, sizeof(union iwreq_data));
1752 memset(buf, 0, sizeof(buf));
1753
1754 snprintf(buf, sizeof(buf) - 1, "%s", str);
1755
1756 iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1757
1758 /* Send Event to upper layer */
1759 lbs_deb_wext("event indication string %s\n", (char *)buf);
1760 lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1761 lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1762
1763 wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1764
1765 lbs_deb_leave(LBS_DEB_WEXT);
1766 }
1767
1768 static void lbs_send_confirmsleep(struct lbs_private *priv)
1769 {
1770 unsigned long flags;
1771 int ret;
1772
1773 lbs_deb_enter(LBS_DEB_HOST);
1774 lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1775 sizeof(confirm_sleep));
1776
1777 ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1778 sizeof(confirm_sleep));
1779 if (ret) {
1780 lbs_pr_alert("confirm_sleep failed\n");
1781 goto out;
1782 }
1783
1784 spin_lock_irqsave(&priv->driver_lock, flags);
1785
1786 /* If nothing to do, go back to sleep (?) */
1787 if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1788 priv->psstate = PS_STATE_SLEEP;
1789
1790 spin_unlock_irqrestore(&priv->driver_lock, flags);
1791
1792 out:
1793 lbs_deb_leave(LBS_DEB_HOST);
1794 }
1795
1796 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1797 {
1798 lbs_deb_enter(LBS_DEB_HOST);
1799
1800 /*
1801 * PS is currently supported only in Infrastructure mode
1802 * Remove this check if it is to be supported in IBSS mode also
1803 */
1804
1805 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1806 CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1807
1808 lbs_deb_leave(LBS_DEB_HOST);
1809 }
1810
1811 /**
1812 * @brief This function sends Exit_PS command to firmware.
1813 *
1814 * @param priv A pointer to struct lbs_private structure
1815 * @param wait_option wait response or not
1816 * @return n/a
1817 */
1818 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1819 {
1820 __le32 Localpsmode;
1821
1822 lbs_deb_enter(LBS_DEB_HOST);
1823
1824 Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1825
1826 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1827 CMD_SUBCMD_EXIT_PS,
1828 wait_option, 0, &Localpsmode);
1829
1830 lbs_deb_leave(LBS_DEB_HOST);
1831 }
1832
1833 /**
1834 * @brief This function checks condition and prepares to
1835 * send sleep confirm command to firmware if ok.
1836 *
1837 * @param priv A pointer to struct lbs_private structure
1838 * @param psmode Power Saving mode
1839 * @return n/a
1840 */
1841 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1842 {
1843 unsigned long flags =0;
1844 int allowed = 1;
1845
1846 lbs_deb_enter(LBS_DEB_HOST);
1847
1848 if (priv->dnld_sent) {
1849 allowed = 0;
1850 lbs_deb_host("dnld_sent was set\n");
1851 }
1852
1853 spin_lock_irqsave(&priv->driver_lock, flags);
1854 /* In-progress command? */
1855 if (priv->cur_cmd) {
1856 allowed = 0;
1857 lbs_deb_host("cur_cmd was set\n");
1858 }
1859
1860 /* Pending events or command responses? */
1861 if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
1862 allowed = 0;
1863 lbs_deb_host("pending events or command responses\n");
1864 }
1865 spin_unlock_irqrestore(&priv->driver_lock, flags);
1866
1867 if (allowed) {
1868 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1869 lbs_send_confirmsleep(priv);
1870 } else {
1871 lbs_deb_host("sleep confirm has been delayed\n");
1872 }
1873
1874 lbs_deb_leave(LBS_DEB_HOST);
1875 }
1876
1877
1878 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1879 uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1880 int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1881 unsigned long callback_arg)
1882 {
1883 struct cmd_ctrl_node *cmdnode;
1884
1885 lbs_deb_enter(LBS_DEB_HOST);
1886
1887 if (priv->surpriseremoved) {
1888 lbs_deb_host("PREP_CMD: card removed\n");
1889 cmdnode = ERR_PTR(-ENOENT);
1890 goto done;
1891 }
1892
1893 cmdnode = lbs_get_cmd_ctrl_node(priv);
1894 if (cmdnode == NULL) {
1895 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1896
1897 /* Wake up main thread to execute next command */
1898 wake_up_interruptible(&priv->waitq);
1899 cmdnode = ERR_PTR(-ENOBUFS);
1900 goto done;
1901 }
1902
1903 cmdnode->callback = callback;
1904 cmdnode->callback_arg = callback_arg;
1905
1906 /* Copy the incoming command to the buffer */
1907 memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
1908
1909 /* Set sequence number, clean result, move to buffer */
1910 priv->seqnum++;
1911 cmdnode->cmdbuf->command = cpu_to_le16(command);
1912 cmdnode->cmdbuf->size = cpu_to_le16(in_cmd_size);
1913 cmdnode->cmdbuf->seqnum = cpu_to_le16(priv->seqnum);
1914 cmdnode->cmdbuf->result = 0;
1915
1916 lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
1917
1918 cmdnode->cmdwaitqwoken = 0;
1919 lbs_queue_cmd(priv, cmdnode);
1920 wake_up_interruptible(&priv->waitq);
1921
1922 done:
1923 lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
1924 return cmdnode;
1925 }
1926
1927 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
1928 struct cmd_header *in_cmd, int in_cmd_size)
1929 {
1930 lbs_deb_enter(LBS_DEB_CMD);
1931 __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
1932 lbs_cmd_async_callback, 0);
1933 lbs_deb_leave(LBS_DEB_CMD);
1934 }
1935
1936 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
1937 struct cmd_header *in_cmd, int in_cmd_size,
1938 int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1939 unsigned long callback_arg)
1940 {
1941 struct cmd_ctrl_node *cmdnode;
1942 unsigned long flags;
1943 int ret = 0;
1944
1945 lbs_deb_enter(LBS_DEB_HOST);
1946
1947 cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
1948 callback, callback_arg);
1949 if (IS_ERR(cmdnode)) {
1950 ret = PTR_ERR(cmdnode);
1951 goto done;
1952 }
1953
1954 might_sleep();
1955 wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
1956
1957 spin_lock_irqsave(&priv->driver_lock, flags);
1958 ret = cmdnode->result;
1959 if (ret)
1960 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
1961 command, ret);
1962
1963 __lbs_cleanup_and_insert_cmd(priv, cmdnode);
1964 spin_unlock_irqrestore(&priv->driver_lock, flags);
1965
1966 done:
1967 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1968 return ret;
1969 }
1970 EXPORT_SYMBOL_GPL(__lbs_cmd);
1971
1972
kernel source for telekom puls (alcatel/mediatek)