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libertas: don't re-initialise cmdnode when taking it off the free queue
[linux-2.6/kvm.git] / drivers / net / wireless / libertas / cmd.c
blobfd321ddf596ef42b34745100f56d6a98a3e9dff4
1 /**
2 * This file contains the handling of command.
3 * It prepares command and sends it to firmware when it is ready.
4 */
5
6 #include <net/iw_handler.h>
7 #include "host.h"
8 #include "hostcmd.h"
9 #include "decl.h"
10 #include "defs.h"
11 #include "dev.h"
12 #include "join.h"
13 #include "wext.h"
14 #include "cmd.h"
15
16 static void cleanup_cmdnode(struct cmd_ctrl_node *ptempnode);
17 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv);
18 static void lbs_set_cmd_ctrl_node(struct lbs_private *priv,
19 struct cmd_ctrl_node *ptempnode,
20 void *pdata_buf);
21
22
23 /**
24 * @brief Checks whether a command is allowed in Power Save mode
25 *
26 * @param command the command ID
27 * @return 1 if allowed, 0 if not allowed
28 */
29 static u8 is_command_allowed_in_ps(u16 cmd)
30 {
31 switch (cmd) {
32 case CMD_802_11_RSSI:
33 return 1;
34 default:
35 break;
36 }
37 return 0;
38 }
39
40 /**
41 * @brief Updates the hardware details like MAC address and regulatory region
42 *
43 * @param priv A pointer to struct lbs_private structure
44 *
45 * @return 0 on success, error on failure
46 */
47 int lbs_update_hw_spec(struct lbs_private *priv)
48 {
49 struct cmd_ds_get_hw_spec cmd;
50 int ret = -1;
51 u32 i;
52 DECLARE_MAC_BUF(mac);
53
54 lbs_deb_enter(LBS_DEB_CMD);
55
56 memset(&cmd, 0, sizeof(cmd));
57 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
58 memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
59 ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
60 if (ret)
61 goto out;
62
63 priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
64 memcpy(priv->fwreleasenumber, cmd.fwreleasenumber, 4);
65
66 lbs_deb_cmd("GET_HW_SPEC: firmware release %u.%u.%up%u\n",
67 priv->fwreleasenumber[2], priv->fwreleasenumber[1],
68 priv->fwreleasenumber[0], priv->fwreleasenumber[3]);
69 lbs_deb_cmd("GET_HW_SPEC: MAC addr %s\n",
70 print_mac(mac, cmd.permanentaddr));
71 lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
72 cmd.hwifversion, cmd.version);
73
74 /* Clamp region code to 8-bit since FW spec indicates that it should
75 * only ever be 8-bit, even though the field size is 16-bit. Some firmware
76 * returns non-zero high 8 bits here.
77 */
78 priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
79
80 for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
81 /* use the region code to search for the index */
82 if (priv->regioncode == lbs_region_code_to_index[i])
83 break;
84 }
85
86 /* if it's unidentified region code, use the default (USA) */
87 if (i >= MRVDRV_MAX_REGION_CODE) {
88 priv->regioncode = 0x10;
89 lbs_pr_info("unidentified region code; using the default (USA)\n");
90 }
91
92 if (priv->current_addr[0] == 0xff)
93 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
94
95 memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
96 if (priv->mesh_dev)
97 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
98
99 if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
100 ret = -1;
101 goto out;
102 }
103
104 if (lbs_set_universaltable(priv, 0)) {
105 ret = -1;
106 goto out;
107 }
108
109 out:
110 lbs_deb_leave(LBS_DEB_CMD);
111 return ret;
112 }
113
114 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria)
115 {
116 struct cmd_ds_host_sleep cmd_config;
117 int ret;
118
119 cmd_config.criteria = cpu_to_le32(criteria);
120 cmd_config.gpio = priv->wol_gpio;
121 cmd_config.gap = priv->wol_gap;
122
123 ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
124 if (!ret) {
125 lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
126 priv->wol_criteria = criteria;
127 } else {
128 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
129 }
130
131 return ret;
132 }
133 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
134
135 static int lbs_cmd_802_11_ps_mode(struct lbs_private *priv,
136 struct cmd_ds_command *cmd,
137 u16 cmd_action)
138 {
139 struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
140
141 lbs_deb_enter(LBS_DEB_CMD);
142
143 cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
144 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
145 S_DS_GEN);
146 psm->action = cpu_to_le16(cmd_action);
147 psm->multipledtim = 0;
148 switch (cmd_action) {
149 case CMD_SUBCMD_ENTER_PS:
150 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
151
152 psm->locallisteninterval = 0;
153 psm->nullpktinterval = 0;
154 psm->multipledtim =
155 cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
156 break;
157
158 case CMD_SUBCMD_EXIT_PS:
159 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
160 break;
161
162 case CMD_SUBCMD_SLEEP_CONFIRMED:
163 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
164 break;
165
166 default:
167 break;
168 }
169
170 lbs_deb_leave(LBS_DEB_CMD);
171 return 0;
172 }
173
174 static int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
175 struct cmd_ds_command *cmd,
176 u16 cmd_action, void *pdata_buf)
177 {
178 u16 *timeout = pdata_buf;
179
180 lbs_deb_enter(LBS_DEB_CMD);
181
182 cmd->command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
183 cmd->size =
184 cpu_to_le16(sizeof(struct cmd_ds_802_11_inactivity_timeout)
185 + S_DS_GEN);
186
187 cmd->params.inactivity_timeout.action = cpu_to_le16(cmd_action);
188
189 if (cmd_action)
190 cmd->params.inactivity_timeout.timeout = cpu_to_le16(*timeout);
191 else
192 cmd->params.inactivity_timeout.timeout = 0;
193
194 lbs_deb_leave(LBS_DEB_CMD);
195 return 0;
196 }
197
198 static int lbs_cmd_802_11_sleep_params(struct lbs_private *priv,
199 struct cmd_ds_command *cmd,
200 u16 cmd_action)
201 {
202 struct cmd_ds_802_11_sleep_params *sp = &cmd->params.sleep_params;
203
204 lbs_deb_enter(LBS_DEB_CMD);
205
206 cmd->size = cpu_to_le16((sizeof(struct cmd_ds_802_11_sleep_params)) +
207 S_DS_GEN);
208 cmd->command = cpu_to_le16(CMD_802_11_SLEEP_PARAMS);
209
210 if (cmd_action == CMD_ACT_GET) {
211 memset(&priv->sp, 0, sizeof(struct sleep_params));
212 memset(sp, 0, sizeof(struct cmd_ds_802_11_sleep_params));
213 sp->action = cpu_to_le16(cmd_action);
214 } else if (cmd_action == CMD_ACT_SET) {
215 sp->action = cpu_to_le16(cmd_action);
216 sp->error = cpu_to_le16(priv->sp.sp_error);
217 sp->offset = cpu_to_le16(priv->sp.sp_offset);
218 sp->stabletime = cpu_to_le16(priv->sp.sp_stabletime);
219 sp->calcontrol = (u8) priv->sp.sp_calcontrol;
220 sp->externalsleepclk = (u8) priv->sp.sp_extsleepclk;
221 sp->reserved = cpu_to_le16(priv->sp.sp_reserved);
222 }
223
224 lbs_deb_leave(LBS_DEB_CMD);
225 return 0;
226 }
227
228 static int lbs_cmd_802_11_set_wep(struct lbs_private *priv,
229 struct cmd_ds_command *cmd,
230 u32 cmd_act,
231 void * pdata_buf)
232 {
233 struct cmd_ds_802_11_set_wep *wep = &cmd->params.wep;
234 int ret = 0;
235 struct assoc_request * assoc_req = pdata_buf;
236
237 lbs_deb_enter(LBS_DEB_CMD);
238
239 cmd->command = cpu_to_le16(CMD_802_11_SET_WEP);
240 cmd->size = cpu_to_le16(sizeof(*wep) + S_DS_GEN);
241
242 if (cmd_act == CMD_ACT_ADD) {
243 int i;
244
245 if (!assoc_req) {
246 lbs_deb_cmd("Invalid association request!\n");
247 ret = -1;
248 goto done;
249 }
250
251 wep->action = cpu_to_le16(CMD_ACT_ADD);
252
253 /* default tx key index */
254 wep->keyindex = cpu_to_le16((u16)(assoc_req->wep_tx_keyidx &
255 (u32)CMD_WEP_KEY_INDEX_MASK));
256
257 /* Copy key types and material to host command structure */
258 for (i = 0; i < 4; i++) {
259 struct enc_key * pkey = &assoc_req->wep_keys[i];
260
261 switch (pkey->len) {
262 case KEY_LEN_WEP_40:
263 wep->keytype[i] = CMD_TYPE_WEP_40_BIT;
264 memmove(&wep->keymaterial[i], pkey->key,
265 pkey->len);
266 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
267 break;
268 case KEY_LEN_WEP_104:
269 wep->keytype[i] = CMD_TYPE_WEP_104_BIT;
270 memmove(&wep->keymaterial[i], pkey->key,
271 pkey->len);
272 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
273 break;
274 case 0:
275 break;
276 default:
277 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
278 i, pkey->len);
279 ret = -1;
280 goto done;
281 break;
282 }
283 }
284 } else if (cmd_act == CMD_ACT_REMOVE) {
285 /* ACT_REMOVE clears _all_ WEP keys */
286 wep->action = cpu_to_le16(CMD_ACT_REMOVE);
287
288 /* default tx key index */
289 wep->keyindex = cpu_to_le16((u16)(priv->wep_tx_keyidx &
290 (u32)CMD_WEP_KEY_INDEX_MASK));
291 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
292 }
293
294 ret = 0;
295
296 done:
297 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
298 return ret;
299 }
300
301 static int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv,
302 struct cmd_ds_command *cmd,
303 u16 cmd_action,
304 void * pdata_buf)
305 {
306 struct cmd_ds_802_11_enable_rsn *penableRSN = &cmd->params.enbrsn;
307 u32 * enable = pdata_buf;
308
309 lbs_deb_enter(LBS_DEB_CMD);
310
311 cmd->command = cpu_to_le16(CMD_802_11_ENABLE_RSN);
312 cmd->size = cpu_to_le16(sizeof(*penableRSN) + S_DS_GEN);
313 penableRSN->action = cpu_to_le16(cmd_action);
314
315 if (cmd_action == CMD_ACT_SET) {
316 if (*enable)
317 penableRSN->enable = cpu_to_le16(CMD_ENABLE_RSN);
318 else
319 penableRSN->enable = cpu_to_le16(CMD_DISABLE_RSN);
320 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
321 }
322
323 lbs_deb_leave(LBS_DEB_CMD);
324 return 0;
325 }
326
327
328 static ssize_t lbs_tlv_size(const u8 *tlv, u16 size)
329 {
330 ssize_t pos = 0;
331 struct mrvlietypesheader *tlv_h;
332 while (pos < size) {
333 u16 length;
334 tlv_h = (struct mrvlietypesheader *) tlv;
335 if (tlv_h->len == 0)
336 return pos;
337 length = le16_to_cpu(tlv_h->len) +
338 sizeof(struct mrvlietypesheader);
339 pos += length;
340 tlv += length;
341 }
342 return pos;
343 }
344
345
346 static void lbs_cmd_802_11_subscribe_event(struct lbs_private *priv,
347 struct cmd_ds_command *cmd, u16 cmd_action,
348 void *pdata_buf)
349 {
350 struct cmd_ds_802_11_subscribe_event *events =
351 (struct cmd_ds_802_11_subscribe_event *) pdata_buf;
352
353 /* pdata_buf points to a struct cmd_ds_802_11_subscribe_event and room
354 * for various Marvell TLVs */
355
356 lbs_deb_enter(LBS_DEB_CMD);
357
358 cmd->size = cpu_to_le16(sizeof(*events)
359 - sizeof(events->tlv)
360 + S_DS_GEN);
361 cmd->params.subscribe_event.action = cpu_to_le16(cmd_action);
362 if (cmd_action == CMD_ACT_GET) {
363 cmd->params.subscribe_event.events = 0;
364 } else {
365 ssize_t sz = lbs_tlv_size(events->tlv, sizeof(events->tlv));
366 cmd->size = cpu_to_le16(le16_to_cpu(cmd->size) + sz);
367 cmd->params.subscribe_event.events = events->events;
368 memcpy(cmd->params.subscribe_event.tlv, events->tlv, sz);
369 }
370
371 lbs_deb_leave(LBS_DEB_CMD);
372 }
373
374 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet * pkeyparamset,
375 struct enc_key * pkey)
376 {
377 lbs_deb_enter(LBS_DEB_CMD);
378
379 if (pkey->flags & KEY_INFO_WPA_ENABLED) {
380 pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
381 }
382 if (pkey->flags & KEY_INFO_WPA_UNICAST) {
383 pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
384 }
385 if (pkey->flags & KEY_INFO_WPA_MCAST) {
386 pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
387 }
388
389 pkeyparamset->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
390 pkeyparamset->keytypeid = cpu_to_le16(pkey->type);
391 pkeyparamset->keylen = cpu_to_le16(pkey->len);
392 memcpy(pkeyparamset->key, pkey->key, pkey->len);
393 pkeyparamset->length = cpu_to_le16( sizeof(pkeyparamset->keytypeid)
394 + sizeof(pkeyparamset->keyinfo)
395 + sizeof(pkeyparamset->keylen)
396 + sizeof(pkeyparamset->key));
397 lbs_deb_leave(LBS_DEB_CMD);
398 }
399
400 static int lbs_cmd_802_11_key_material(struct lbs_private *priv,
401 struct cmd_ds_command *cmd,
402 u16 cmd_action,
403 u32 cmd_oid, void *pdata_buf)
404 {
405 struct cmd_ds_802_11_key_material *pkeymaterial =
406 &cmd->params.keymaterial;
407 struct assoc_request * assoc_req = pdata_buf;
408 int ret = 0;
409 int index = 0;
410
411 lbs_deb_enter(LBS_DEB_CMD);
412
413 cmd->command = cpu_to_le16(CMD_802_11_KEY_MATERIAL);
414 pkeymaterial->action = cpu_to_le16(cmd_action);
415
416 if (cmd_action == CMD_ACT_GET) {
417 cmd->size = cpu_to_le16(S_DS_GEN + sizeof (pkeymaterial->action));
418 ret = 0;
419 goto done;
420 }
421
422 memset(&pkeymaterial->keyParamSet, 0, sizeof(pkeymaterial->keyParamSet));
423
424 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
425 set_one_wpa_key(&pkeymaterial->keyParamSet[index],
426 &assoc_req->wpa_unicast_key);
427 index++;
428 }
429
430 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
431 set_one_wpa_key(&pkeymaterial->keyParamSet[index],
432 &assoc_req->wpa_mcast_key);
433 index++;
434 }
435
436 cmd->size = cpu_to_le16( S_DS_GEN
437 + sizeof (pkeymaterial->action)
438 + (index * sizeof(struct MrvlIEtype_keyParamSet)));
439
440 ret = 0;
441
442 done:
443 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
444 return ret;
445 }
446
447 static int lbs_cmd_802_11_reset(struct lbs_private *priv,
448 struct cmd_ds_command *cmd, int cmd_action)
449 {
450 struct cmd_ds_802_11_reset *reset = &cmd->params.reset;
451
452 lbs_deb_enter(LBS_DEB_CMD);
453
454 cmd->command = cpu_to_le16(CMD_802_11_RESET);
455 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset) + S_DS_GEN);
456 reset->action = cpu_to_le16(cmd_action);
457
458 lbs_deb_leave(LBS_DEB_CMD);
459 return 0;
460 }
461
462 static int lbs_cmd_802_11_get_log(struct lbs_private *priv,
463 struct cmd_ds_command *cmd)
464 {
465 lbs_deb_enter(LBS_DEB_CMD);
466 cmd->command = cpu_to_le16(CMD_802_11_GET_LOG);
467 cmd->size =
468 cpu_to_le16(sizeof(struct cmd_ds_802_11_get_log) + S_DS_GEN);
469
470 lbs_deb_leave(LBS_DEB_CMD);
471 return 0;
472 }
473
474 static int lbs_cmd_802_11_get_stat(struct lbs_private *priv,
475 struct cmd_ds_command *cmd)
476 {
477 lbs_deb_enter(LBS_DEB_CMD);
478 cmd->command = cpu_to_le16(CMD_802_11_GET_STAT);
479 cmd->size =
480 cpu_to_le16(sizeof(struct cmd_ds_802_11_get_stat) + S_DS_GEN);
481
482 lbs_deb_leave(LBS_DEB_CMD);
483 return 0;
484 }
485
486 static int lbs_cmd_802_11_snmp_mib(struct lbs_private *priv,
487 struct cmd_ds_command *cmd,
488 int cmd_action,
489 int cmd_oid, void *pdata_buf)
490 {
491 struct cmd_ds_802_11_snmp_mib *pSNMPMIB = &cmd->params.smib;
492 u8 ucTemp;
493
494 lbs_deb_enter(LBS_DEB_CMD);
495
496 lbs_deb_cmd("SNMP_CMD: cmd_oid = 0x%x\n", cmd_oid);
497
498 cmd->command = cpu_to_le16(CMD_802_11_SNMP_MIB);
499 cmd->size = cpu_to_le16(sizeof(*pSNMPMIB) + S_DS_GEN);
500
501 switch (cmd_oid) {
502 case OID_802_11_INFRASTRUCTURE_MODE:
503 {
504 u8 mode = (u8) (size_t) pdata_buf;
505 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
506 pSNMPMIB->oid = cpu_to_le16((u16) DESIRED_BSSTYPE_I);
507 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u8));
508 if (mode == IW_MODE_ADHOC) {
509 ucTemp = SNMP_MIB_VALUE_ADHOC;
510 } else {
511 /* Infra and Auto modes */
512 ucTemp = SNMP_MIB_VALUE_INFRA;
513 }
514
515 memmove(pSNMPMIB->value, &ucTemp, sizeof(u8));
516
517 break;
518 }
519
520 case OID_802_11D_ENABLE:
521 {
522 u32 ulTemp;
523
524 pSNMPMIB->oid = cpu_to_le16((u16) DOT11D_I);
525
526 if (cmd_action == CMD_ACT_SET) {
527 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
528 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
529 ulTemp = *(u32 *)pdata_buf;
530 *((__le16 *)(pSNMPMIB->value)) =
531 cpu_to_le16((u16) ulTemp);
532 }
533 break;
534 }
535
536 case OID_802_11_FRAGMENTATION_THRESHOLD:
537 {
538 u32 ulTemp;
539
540 pSNMPMIB->oid = cpu_to_le16((u16) FRAGTHRESH_I);
541
542 if (cmd_action == CMD_ACT_GET) {
543 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
544 } else if (cmd_action == CMD_ACT_SET) {
545 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
546 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
547 ulTemp = *((u32 *) pdata_buf);
548 *((__le16 *)(pSNMPMIB->value)) =
549 cpu_to_le16((u16) ulTemp);
550
551 }
552
553 break;
554 }
555
556 case OID_802_11_RTS_THRESHOLD:
557 {
558
559 u32 ulTemp;
560 pSNMPMIB->oid = cpu_to_le16(RTSTHRESH_I);
561
562 if (cmd_action == CMD_ACT_GET) {
563 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
564 } else if (cmd_action == CMD_ACT_SET) {
565 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
566 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
567 ulTemp = *((u32 *)pdata_buf);
568 *(__le16 *)(pSNMPMIB->value) =
569 cpu_to_le16((u16) ulTemp);
570
571 }
572 break;
573 }
574 case OID_802_11_TX_RETRYCOUNT:
575 pSNMPMIB->oid = cpu_to_le16((u16) SHORT_RETRYLIM_I);
576
577 if (cmd_action == CMD_ACT_GET) {
578 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
579 } else if (cmd_action == CMD_ACT_SET) {
580 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
581 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
582 *((__le16 *)(pSNMPMIB->value)) =
583 cpu_to_le16((u16) priv->txretrycount);
584 }
585
586 break;
587 default:
588 break;
589 }
590
591 lbs_deb_cmd(
592 "SNMP_CMD: command=0x%x, size=0x%x, seqnum=0x%x, result=0x%x\n",
593 le16_to_cpu(cmd->command), le16_to_cpu(cmd->size),
594 le16_to_cpu(cmd->seqnum), le16_to_cpu(cmd->result));
595
596 lbs_deb_cmd(
597 "SNMP_CMD: action 0x%x, oid 0x%x, oidsize 0x%x, value 0x%x\n",
598 le16_to_cpu(pSNMPMIB->querytype), le16_to_cpu(pSNMPMIB->oid),
599 le16_to_cpu(pSNMPMIB->bufsize),
600 le16_to_cpu(*(__le16 *) pSNMPMIB->value));
601
602 lbs_deb_leave(LBS_DEB_CMD);
603 return 0;
604 }
605
606 static int lbs_cmd_802_11_radio_control(struct lbs_private *priv,
607 struct cmd_ds_command *cmd,
608 int cmd_action)
609 {
610 struct cmd_ds_802_11_radio_control *pradiocontrol = &cmd->params.radio;
611
612 lbs_deb_enter(LBS_DEB_CMD);
613
614 cmd->size =
615 cpu_to_le16((sizeof(struct cmd_ds_802_11_radio_control)) +
616 S_DS_GEN);
617 cmd->command = cpu_to_le16(CMD_802_11_RADIO_CONTROL);
618
619 pradiocontrol->action = cpu_to_le16(cmd_action);
620
621 switch (priv->preamble) {
622 case CMD_TYPE_SHORT_PREAMBLE:
623 pradiocontrol->control = cpu_to_le16(SET_SHORT_PREAMBLE);
624 break;
625
626 case CMD_TYPE_LONG_PREAMBLE:
627 pradiocontrol->control = cpu_to_le16(SET_LONG_PREAMBLE);
628 break;
629
630 case CMD_TYPE_AUTO_PREAMBLE:
631 default:
632 pradiocontrol->control = cpu_to_le16(SET_AUTO_PREAMBLE);
633 break;
634 }
635
636 if (priv->radioon)
637 pradiocontrol->control |= cpu_to_le16(TURN_ON_RF);
638 else
639 pradiocontrol->control &= cpu_to_le16(~TURN_ON_RF);
640
641 lbs_deb_leave(LBS_DEB_CMD);
642 return 0;
643 }
644
645 static int lbs_cmd_802_11_rf_tx_power(struct lbs_private *priv,
646 struct cmd_ds_command *cmd,
647 u16 cmd_action, void *pdata_buf)
648 {
649
650 struct cmd_ds_802_11_rf_tx_power *prtp = &cmd->params.txp;
651
652 lbs_deb_enter(LBS_DEB_CMD);
653
654 cmd->size =
655 cpu_to_le16((sizeof(struct cmd_ds_802_11_rf_tx_power)) + S_DS_GEN);
656 cmd->command = cpu_to_le16(CMD_802_11_RF_TX_POWER);
657 prtp->action = cpu_to_le16(cmd_action);
658
659 lbs_deb_cmd("RF_TX_POWER_CMD: size:%d cmd:0x%x Act:%d\n",
660 le16_to_cpu(cmd->size), le16_to_cpu(cmd->command),
661 le16_to_cpu(prtp->action));
662
663 switch (cmd_action) {
664 case CMD_ACT_TX_POWER_OPT_GET:
665 prtp->action = cpu_to_le16(CMD_ACT_GET);
666 prtp->currentlevel = 0;
667 break;
668
669 case CMD_ACT_TX_POWER_OPT_SET_HIGH:
670 prtp->action = cpu_to_le16(CMD_ACT_SET);
671 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_HIGH);
672 break;
673
674 case CMD_ACT_TX_POWER_OPT_SET_MID:
675 prtp->action = cpu_to_le16(CMD_ACT_SET);
676 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_MID);
677 break;
678
679 case CMD_ACT_TX_POWER_OPT_SET_LOW:
680 prtp->action = cpu_to_le16(CMD_ACT_SET);
681 prtp->currentlevel = cpu_to_le16(*((u16 *) pdata_buf));
682 break;
683 }
684
685 lbs_deb_leave(LBS_DEB_CMD);
686 return 0;
687 }
688
689 static int lbs_cmd_802_11_monitor_mode(struct lbs_private *priv,
690 struct cmd_ds_command *cmd,
691 u16 cmd_action, void *pdata_buf)
692 {
693 struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
694
695 cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
696 cmd->size =
697 cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
698 S_DS_GEN);
699
700 monitor->action = cpu_to_le16(cmd_action);
701 if (cmd_action == CMD_ACT_SET) {
702 monitor->mode =
703 cpu_to_le16((u16) (*(u32 *) pdata_buf));
704 }
705
706 return 0;
707 }
708
709 static int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
710 struct cmd_ds_command *cmd,
711 u16 cmd_action)
712 {
713 struct cmd_ds_802_11_rate_adapt_rateset
714 *rateadapt = &cmd->params.rateset;
715
716 lbs_deb_enter(LBS_DEB_CMD);
717 cmd->size =
718 cpu_to_le16(sizeof(struct cmd_ds_802_11_rate_adapt_rateset)
719 + S_DS_GEN);
720 cmd->command = cpu_to_le16(CMD_802_11_RATE_ADAPT_RATESET);
721
722 rateadapt->action = cpu_to_le16(cmd_action);
723 rateadapt->enablehwauto = cpu_to_le16(priv->enablehwauto);
724 rateadapt->bitmap = cpu_to_le16(priv->ratebitmap);
725
726 lbs_deb_leave(LBS_DEB_CMD);
727 return 0;
728 }
729
730 /**
731 * @brief Get the current data rate
732 *
733 * @param priv A pointer to struct lbs_private structure
734 *
735 * @return The data rate on success, error on failure
736 */
737 int lbs_get_data_rate(struct lbs_private *priv)
738 {
739 struct cmd_ds_802_11_data_rate cmd;
740 int ret = -1;
741
742 lbs_deb_enter(LBS_DEB_CMD);
743
744 memset(&cmd, 0, sizeof(cmd));
745 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
746 cmd.action = cpu_to_le16(CMD_ACT_GET_TX_RATE);
747
748 ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
749 if (ret)
750 goto out;
751
752 lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
753
754 ret = (int) lbs_fw_index_to_data_rate(cmd.rates[0]);
755 lbs_deb_cmd("DATA_RATE: current rate 0x%02x\n", ret);
756
757 out:
758 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
759 return ret;
760 }
761
762 /**
763 * @brief Set the data rate
764 *
765 * @param priv A pointer to struct lbs_private structure
766 * @param rate The desired data rate, or 0 to clear a locked rate
767 *
768 * @return 0 on success, error on failure
769 */
770 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
771 {
772 struct cmd_ds_802_11_data_rate cmd;
773 int ret = 0;
774
775 lbs_deb_enter(LBS_DEB_CMD);
776
777 memset(&cmd, 0, sizeof(cmd));
778 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
779
780 if (rate > 0) {
781 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
782 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
783 if (cmd.rates[0] == 0) {
784 lbs_deb_cmd("DATA_RATE: invalid requested rate of"
785 " 0x%02X\n", rate);
786 ret = 0;
787 goto out;
788 }
789 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
790 } else {
791 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
792 lbs_deb_cmd("DATA_RATE: setting auto\n");
793 }
794
795 ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
796 if (ret)
797 goto out;
798
799 lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
800
801 /* FIXME: get actual rates FW can do if this command actually returns
802 * all data rates supported.
803 */
804 priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
805 lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
806
807 out:
808 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
809 return ret;
810 }
811
812 static int lbs_cmd_mac_multicast_adr(struct lbs_private *priv,
813 struct cmd_ds_command *cmd,
814 u16 cmd_action)
815 {
816 struct cmd_ds_mac_multicast_adr *pMCastAdr = &cmd->params.madr;
817
818 lbs_deb_enter(LBS_DEB_CMD);
819 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_mac_multicast_adr) +
820 S_DS_GEN);
821 cmd->command = cpu_to_le16(CMD_MAC_MULTICAST_ADR);
822
823 lbs_deb_cmd("MULTICAST_ADR: setting %d addresses\n", pMCastAdr->nr_of_adrs);
824 pMCastAdr->action = cpu_to_le16(cmd_action);
825 pMCastAdr->nr_of_adrs =
826 cpu_to_le16((u16) priv->nr_of_multicastmacaddr);
827 memcpy(pMCastAdr->maclist, priv->multicastlist,
828 priv->nr_of_multicastmacaddr * ETH_ALEN);
829
830 lbs_deb_leave(LBS_DEB_CMD);
831 return 0;
832 }
833
834 /**
835 * @brief Get the radio channel
836 *
837 * @param priv A pointer to struct lbs_private structure
838 *
839 * @return The channel on success, error on failure
840 */
841 int lbs_get_channel(struct lbs_private *priv)
842 {
843 struct cmd_ds_802_11_rf_channel cmd;
844 int ret = 0;
845
846 lbs_deb_enter(LBS_DEB_CMD);
847
848 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
849 cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
850
851 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
852 if (ret)
853 goto out;
854
855 ret = le16_to_cpu(cmd.channel);
856 lbs_deb_cmd("current radio channel is %d\n", ret);
857
858 out:
859 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
860 return ret;
861 }
862
863 /**
864 * @brief Set the radio channel
865 *
866 * @param priv A pointer to struct lbs_private structure
867 * @param channel The desired channel, or 0 to clear a locked channel
868 *
869 * @return 0 on success, error on failure
870 */
871 int lbs_set_channel(struct lbs_private *priv, u8 channel)
872 {
873 struct cmd_ds_802_11_rf_channel cmd;
874 u8 old_channel = priv->curbssparams.channel;
875 int ret = 0;
876
877 lbs_deb_enter(LBS_DEB_CMD);
878
879 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
880 cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
881 cmd.channel = cpu_to_le16(channel);
882
883 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
884 if (ret)
885 goto out;
886
887 priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
888 lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
889 priv->curbssparams.channel);
890
891 out:
892 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
893 return ret;
894 }
895
896 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
897 struct cmd_ds_command *cmd)
898 {
899
900 lbs_deb_enter(LBS_DEB_CMD);
901 cmd->command = cpu_to_le16(CMD_802_11_RSSI);
902 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
903 cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
904
905 /* reset Beacon SNR/NF/RSSI values */
906 priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
907 priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
908 priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
909 priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
910 priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
911 priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
912
913 lbs_deb_leave(LBS_DEB_CMD);
914 return 0;
915 }
916
917 static int lbs_cmd_reg_access(struct lbs_private *priv,
918 struct cmd_ds_command *cmdptr,
919 u8 cmd_action, void *pdata_buf)
920 {
921 struct lbs_offset_value *offval;
922
923 lbs_deb_enter(LBS_DEB_CMD);
924
925 offval = (struct lbs_offset_value *)pdata_buf;
926
927 switch (le16_to_cpu(cmdptr->command)) {
928 case CMD_MAC_REG_ACCESS:
929 {
930 struct cmd_ds_mac_reg_access *macreg;
931
932 cmdptr->size =
933 cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
934 + S_DS_GEN);
935 macreg =
936 (struct cmd_ds_mac_reg_access *)&cmdptr->params.
937 macreg;
938
939 macreg->action = cpu_to_le16(cmd_action);
940 macreg->offset = cpu_to_le16((u16) offval->offset);
941 macreg->value = cpu_to_le32(offval->value);
942
943 break;
944 }
945
946 case CMD_BBP_REG_ACCESS:
947 {
948 struct cmd_ds_bbp_reg_access *bbpreg;
949
950 cmdptr->size =
951 cpu_to_le16(sizeof
952 (struct cmd_ds_bbp_reg_access)
953 + S_DS_GEN);
954 bbpreg =
955 (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
956 bbpreg;
957
958 bbpreg->action = cpu_to_le16(cmd_action);
959 bbpreg->offset = cpu_to_le16((u16) offval->offset);
960 bbpreg->value = (u8) offval->value;
961
962 break;
963 }
964
965 case CMD_RF_REG_ACCESS:
966 {
967 struct cmd_ds_rf_reg_access *rfreg;
968
969 cmdptr->size =
970 cpu_to_le16(sizeof
971 (struct cmd_ds_rf_reg_access) +
972 S_DS_GEN);
973 rfreg =
974 (struct cmd_ds_rf_reg_access *)&cmdptr->params.
975 rfreg;
976
977 rfreg->action = cpu_to_le16(cmd_action);
978 rfreg->offset = cpu_to_le16((u16) offval->offset);
979 rfreg->value = (u8) offval->value;
980
981 break;
982 }
983
984 default:
985 break;
986 }
987
988 lbs_deb_leave(LBS_DEB_CMD);
989 return 0;
990 }
991
992 static int lbs_cmd_802_11_mac_address(struct lbs_private *priv,
993 struct cmd_ds_command *cmd,
994 u16 cmd_action)
995 {
996
997 lbs_deb_enter(LBS_DEB_CMD);
998 cmd->command = cpu_to_le16(CMD_802_11_MAC_ADDRESS);
999 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_mac_address) +
1000 S_DS_GEN);
1001 cmd->result = 0;
1002
1003 cmd->params.macadd.action = cpu_to_le16(cmd_action);
1004
1005 if (cmd_action == CMD_ACT_SET) {
1006 memcpy(cmd->params.macadd.macadd,
1007 priv->current_addr, ETH_ALEN);
1008 lbs_deb_hex(LBS_DEB_CMD, "SET_CMD: MAC addr", priv->current_addr, 6);
1009 }
1010
1011 lbs_deb_leave(LBS_DEB_CMD);
1012 return 0;
1013 }
1014
1015 static int lbs_cmd_802_11_eeprom_access(struct lbs_private *priv,
1016 struct cmd_ds_command *cmd,
1017 int cmd_action, void *pdata_buf)
1018 {
1019 struct lbs_ioctl_regrdwr *ea = pdata_buf;
1020
1021 lbs_deb_enter(LBS_DEB_CMD);
1022
1023 cmd->command = cpu_to_le16(CMD_802_11_EEPROM_ACCESS);
1024 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_eeprom_access) +
1025 S_DS_GEN);
1026 cmd->result = 0;
1027
1028 cmd->params.rdeeprom.action = cpu_to_le16(ea->action);
1029 cmd->params.rdeeprom.offset = cpu_to_le16(ea->offset);
1030 cmd->params.rdeeprom.bytecount = cpu_to_le16(ea->NOB);
1031 cmd->params.rdeeprom.value = 0;
1032
1033 lbs_deb_leave(LBS_DEB_CMD);
1034 return 0;
1035 }
1036
1037 static int lbs_cmd_bt_access(struct lbs_private *priv,
1038 struct cmd_ds_command *cmd,
1039 u16 cmd_action, void *pdata_buf)
1040 {
1041 struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
1042 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1043
1044 cmd->command = cpu_to_le16(CMD_BT_ACCESS);
1045 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
1046 cmd->result = 0;
1047 bt_access->action = cpu_to_le16(cmd_action);
1048
1049 switch (cmd_action) {
1050 case CMD_ACT_BT_ACCESS_ADD:
1051 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
1052 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
1053 break;
1054 case CMD_ACT_BT_ACCESS_DEL:
1055 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
1056 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
1057 break;
1058 case CMD_ACT_BT_ACCESS_LIST:
1059 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1060 break;
1061 case CMD_ACT_BT_ACCESS_RESET:
1062 break;
1063 case CMD_ACT_BT_ACCESS_SET_INVERT:
1064 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1065 break;
1066 case CMD_ACT_BT_ACCESS_GET_INVERT:
1067 break;
1068 default:
1069 break;
1070 }
1071 lbs_deb_leave(LBS_DEB_CMD);
1072 return 0;
1073 }
1074
1075 static int lbs_cmd_fwt_access(struct lbs_private *priv,
1076 struct cmd_ds_command *cmd,
1077 u16 cmd_action, void *pdata_buf)
1078 {
1079 struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1080 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1081
1082 cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1083 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1084 cmd->result = 0;
1085
1086 if (pdata_buf)
1087 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1088 else
1089 memset(fwt_access, 0, sizeof(*fwt_access));
1090
1091 fwt_access->action = cpu_to_le16(cmd_action);
1092
1093 lbs_deb_leave(LBS_DEB_CMD);
1094 return 0;
1095 }
1096
1097 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1098 struct cmd_ds_mesh_access *cmd)
1099 {
1100 int ret;
1101
1102 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1103
1104 cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1105 cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_access) + S_DS_GEN);
1106 cmd->hdr.result = 0;
1107
1108 cmd->action = cpu_to_le16(cmd_action);
1109
1110 ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1111
1112 lbs_deb_leave(LBS_DEB_CMD);
1113 return ret;
1114 }
1115 EXPORT_SYMBOL_GPL(lbs_mesh_access);
1116
1117 int lbs_mesh_config(struct lbs_private *priv, uint16_t enable, uint16_t chan)
1118 {
1119 struct cmd_ds_mesh_config cmd;
1120
1121 memset(&cmd, 0, sizeof(cmd));
1122 cmd.action = cpu_to_le16(enable);
1123 cmd.channel = cpu_to_le16(chan);
1124 cmd.type = cpu_to_le16(priv->mesh_tlv);
1125
1126 if (enable) {
1127 cmd.length = cpu_to_le16(priv->mesh_ssid_len);
1128 memcpy(cmd.data, priv->mesh_ssid, priv->mesh_ssid_len);
1129 }
1130 lbs_deb_cmd("mesh config enable %d TLV %x channel %d SSID %s\n",
1131 enable, priv->mesh_tlv, chan,
1132 escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1133 return lbs_cmd_with_response(priv, CMD_MESH_CONFIG, &cmd);
1134 }
1135
1136 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1137 struct cmd_ds_command *cmd,
1138 u16 cmd_action)
1139 {
1140 struct cmd_ds_802_11_beacon_control
1141 *bcn_ctrl = &cmd->params.bcn_ctrl;
1142
1143 lbs_deb_enter(LBS_DEB_CMD);
1144 cmd->size =
1145 cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1146 + S_DS_GEN);
1147 cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1148
1149 bcn_ctrl->action = cpu_to_le16(cmd_action);
1150 bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1151 bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1152
1153 lbs_deb_leave(LBS_DEB_CMD);
1154 return 0;
1155 }
1156
1157 /*
1158 * Note: NEVER use lbs_queue_cmd() with addtail==0 other than for
1159 * the command timer, because it does not account for queued commands.
1160 */
1161 void lbs_queue_cmd(struct lbs_private *priv,
1162 struct cmd_ctrl_node *cmdnode,
1163 u8 addtail)
1164 {
1165 unsigned long flags;
1166
1167 lbs_deb_enter(LBS_DEB_HOST);
1168
1169 if (!cmdnode) {
1170 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1171 goto done;
1172 }
1173 if (!cmdnode->cmdbuf->size) {
1174 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1175 goto done;
1176 }
1177
1178 /* Exit_PS command needs to be queued in the header always. */
1179 if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1180 struct cmd_ds_802_11_ps_mode *psm = (void *) cmdnode->cmdbuf;
1181
1182 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1183 if (priv->psstate != PS_STATE_FULL_POWER)
1184 addtail = 0;
1185 }
1186 }
1187
1188 spin_lock_irqsave(&priv->driver_lock, flags);
1189
1190 if (addtail)
1191 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1192 else
1193 list_add(&cmdnode->list, &priv->cmdpendingq);
1194
1195 spin_unlock_irqrestore(&priv->driver_lock, flags);
1196
1197 lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1198 le16_to_cpu(cmdnode->cmdbuf->command));
1199
1200 done:
1201 lbs_deb_leave(LBS_DEB_HOST);
1202 }
1203
1204 static int lbs_submit_command(struct lbs_private *priv,
1205 struct cmd_ctrl_node *cmdnode)
1206 {
1207 unsigned long flags;
1208 struct cmd_header *cmd;
1209 int ret = -1;
1210 u16 cmdsize;
1211 u16 command;
1212
1213 lbs_deb_enter(LBS_DEB_HOST);
1214
1215 cmd = cmdnode->cmdbuf;
1216
1217 spin_lock_irqsave(&priv->driver_lock, flags);
1218 priv->cur_cmd = cmdnode;
1219 priv->cur_cmd_retcode = 0;
1220 spin_unlock_irqrestore(&priv->driver_lock, flags);
1221
1222 cmdsize = le16_to_cpu(cmd->size);
1223 command = le16_to_cpu(cmd->command);
1224
1225 lbs_deb_host("DNLD_CMD: command 0x%04x, seq %d, size %d, jiffies %lu\n",
1226 command, le16_to_cpu(cmd->seqnum), cmdsize, jiffies);
1227 lbs_deb_hex(LBS_DEB_HOST, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1228
1229 ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1230 if (ret) {
1231 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1232 spin_lock_irqsave(&priv->driver_lock, flags);
1233 lbs_complete_command(priv, priv->cur_cmd, ret);
1234 spin_unlock_irqrestore(&priv->driver_lock, flags);
1235 goto done;
1236 }
1237
1238 lbs_deb_cmd("DNLD_CMD: sent command 0x%04x, jiffies %lu\n", command, jiffies);
1239
1240 /* Setup the timer after transmit command */
1241 if (command == CMD_802_11_SCAN || command == CMD_802_11_AUTHENTICATE
1242 || command == CMD_802_11_ASSOCIATE)
1243 mod_timer(&priv->command_timer, jiffies + (10*HZ));
1244 else
1245 mod_timer(&priv->command_timer, jiffies + (5*HZ));
1246
1247 ret = 0;
1248
1249 done:
1250 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1251 return ret;
1252 }
1253
1254 static int lbs_cmd_mac_control(struct lbs_private *priv,
1255 struct cmd_ds_command *cmd)
1256 {
1257 struct cmd_ds_mac_control *mac = &cmd->params.macctrl;
1258
1259 lbs_deb_enter(LBS_DEB_CMD);
1260
1261 cmd->command = cpu_to_le16(CMD_MAC_CONTROL);
1262 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_mac_control) + S_DS_GEN);
1263 mac->action = cpu_to_le16(priv->currentpacketfilter);
1264
1265 lbs_deb_cmd("MAC_CONTROL: action 0x%x, size %d\n",
1266 le16_to_cpu(mac->action), le16_to_cpu(cmd->size));
1267
1268 lbs_deb_leave(LBS_DEB_CMD);
1269 return 0;
1270 }
1271
1272 /**
1273 * This function inserts command node to cmdfreeq
1274 * after cleans it. Requires priv->driver_lock held.
1275 */
1276 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1277 struct cmd_ctrl_node *ptempcmd)
1278 {
1279
1280 if (!ptempcmd)
1281 return;
1282
1283 cleanup_cmdnode(ptempcmd);
1284 list_add_tail(&ptempcmd->list, &priv->cmdfreeq);
1285 }
1286
1287 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1288 struct cmd_ctrl_node *ptempcmd)
1289 {
1290 unsigned long flags;
1291
1292 spin_lock_irqsave(&priv->driver_lock, flags);
1293 __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1294 spin_unlock_irqrestore(&priv->driver_lock, flags);
1295 }
1296
1297 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1298 int result)
1299 {
1300 if (cmd == priv->cur_cmd)
1301 priv->cur_cmd_retcode = result;
1302 __lbs_cleanup_and_insert_cmd(priv, cmd);
1303 priv->cur_cmd = NULL;
1304 }
1305
1306 int lbs_set_radio_control(struct lbs_private *priv)
1307 {
1308 int ret = 0;
1309
1310 lbs_deb_enter(LBS_DEB_CMD);
1311
1312 ret = lbs_prepare_and_send_command(priv,
1313 CMD_802_11_RADIO_CONTROL,
1314 CMD_ACT_SET,
1315 CMD_OPTION_WAITFORRSP, 0, NULL);
1316
1317 lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n",
1318 priv->radioon, priv->preamble);
1319
1320 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1321 return ret;
1322 }
1323
1324 int lbs_set_mac_packet_filter(struct lbs_private *priv)
1325 {
1326 int ret = 0;
1327
1328 lbs_deb_enter(LBS_DEB_CMD);
1329
1330 /* Send MAC control command to station */
1331 ret = lbs_prepare_and_send_command(priv,
1332 CMD_MAC_CONTROL, 0, 0, 0, NULL);
1333
1334 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1335 return ret;
1336 }
1337
1338 /**
1339 * @brief This function prepare the command before send to firmware.
1340 *
1341 * @param priv A pointer to struct lbs_private structure
1342 * @param cmd_no command number
1343 * @param cmd_action command action: GET or SET
1344 * @param wait_option wait option: wait response or not
1345 * @param cmd_oid cmd oid: treated as sub command
1346 * @param pdata_buf A pointer to informaion buffer
1347 * @return 0 or -1
1348 */
1349 int lbs_prepare_and_send_command(struct lbs_private *priv,
1350 u16 cmd_no,
1351 u16 cmd_action,
1352 u16 wait_option, u32 cmd_oid, void *pdata_buf)
1353 {
1354 int ret = 0;
1355 struct cmd_ctrl_node *cmdnode;
1356 struct cmd_ds_command *cmdptr;
1357 unsigned long flags;
1358
1359 lbs_deb_enter(LBS_DEB_HOST);
1360
1361 if (!priv) {
1362 lbs_deb_host("PREP_CMD: priv is NULL\n");
1363 ret = -1;
1364 goto done;
1365 }
1366
1367 if (priv->surpriseremoved) {
1368 lbs_deb_host("PREP_CMD: card removed\n");
1369 ret = -1;
1370 goto done;
1371 }
1372
1373 cmdnode = lbs_get_cmd_ctrl_node(priv);
1374
1375 if (cmdnode == NULL) {
1376 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1377
1378 /* Wake up main thread to execute next command */
1379 wake_up_interruptible(&priv->waitq);
1380 ret = -1;
1381 goto done;
1382 }
1383
1384 lbs_set_cmd_ctrl_node(priv, cmdnode, pdata_buf);
1385
1386 cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1387
1388 lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1389
1390 /* Set sequence number, command and INT option */
1391 priv->seqnum++;
1392 cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1393
1394 cmdptr->command = cpu_to_le16(cmd_no);
1395 cmdptr->result = 0;
1396
1397 switch (cmd_no) {
1398 case CMD_802_11_PS_MODE:
1399 ret = lbs_cmd_802_11_ps_mode(priv, cmdptr, cmd_action);
1400 break;
1401
1402 case CMD_802_11_SCAN:
1403 ret = lbs_cmd_80211_scan(priv, cmdptr, pdata_buf);
1404 break;
1405
1406 case CMD_MAC_CONTROL:
1407 ret = lbs_cmd_mac_control(priv, cmdptr);
1408 break;
1409
1410 case CMD_802_11_ASSOCIATE:
1411 case CMD_802_11_REASSOCIATE:
1412 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1413 break;
1414
1415 case CMD_802_11_DEAUTHENTICATE:
1416 ret = lbs_cmd_80211_deauthenticate(priv, cmdptr);
1417 break;
1418
1419 case CMD_802_11_SET_WEP:
1420 ret = lbs_cmd_802_11_set_wep(priv, cmdptr, cmd_action, pdata_buf);
1421 break;
1422
1423 case CMD_802_11_AD_HOC_START:
1424 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1425 break;
1426 case CMD_CODE_DNLD:
1427 break;
1428
1429 case CMD_802_11_RESET:
1430 ret = lbs_cmd_802_11_reset(priv, cmdptr, cmd_action);
1431 break;
1432
1433 case CMD_802_11_GET_LOG:
1434 ret = lbs_cmd_802_11_get_log(priv, cmdptr);
1435 break;
1436
1437 case CMD_802_11_AUTHENTICATE:
1438 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1439 break;
1440
1441 case CMD_802_11_GET_STAT:
1442 ret = lbs_cmd_802_11_get_stat(priv, cmdptr);
1443 break;
1444
1445 case CMD_802_11_SNMP_MIB:
1446 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1447 cmd_action, cmd_oid, pdata_buf);
1448 break;
1449
1450 case CMD_MAC_REG_ACCESS:
1451 case CMD_BBP_REG_ACCESS:
1452 case CMD_RF_REG_ACCESS:
1453 ret = lbs_cmd_reg_access(priv, cmdptr, cmd_action, pdata_buf);
1454 break;
1455
1456 case CMD_802_11_RF_TX_POWER:
1457 ret = lbs_cmd_802_11_rf_tx_power(priv, cmdptr,
1458 cmd_action, pdata_buf);
1459 break;
1460
1461 case CMD_802_11_RADIO_CONTROL:
1462 ret = lbs_cmd_802_11_radio_control(priv, cmdptr, cmd_action);
1463 break;
1464
1465 case CMD_802_11_RATE_ADAPT_RATESET:
1466 ret = lbs_cmd_802_11_rate_adapt_rateset(priv,
1467 cmdptr, cmd_action);
1468 break;
1469
1470 case CMD_MAC_MULTICAST_ADR:
1471 ret = lbs_cmd_mac_multicast_adr(priv, cmdptr, cmd_action);
1472 break;
1473
1474 case CMD_802_11_MONITOR_MODE:
1475 ret = lbs_cmd_802_11_monitor_mode(priv, cmdptr,
1476 cmd_action, pdata_buf);
1477 break;
1478
1479 case CMD_802_11_AD_HOC_JOIN:
1480 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1481 break;
1482
1483 case CMD_802_11_RSSI:
1484 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1485 break;
1486
1487 case CMD_802_11_AD_HOC_STOP:
1488 ret = lbs_cmd_80211_ad_hoc_stop(priv, cmdptr);
1489 break;
1490
1491 case CMD_802_11_ENABLE_RSN:
1492 ret = lbs_cmd_802_11_enable_rsn(priv, cmdptr, cmd_action,
1493 pdata_buf);
1494 break;
1495
1496 case CMD_802_11_KEY_MATERIAL:
1497 ret = lbs_cmd_802_11_key_material(priv, cmdptr, cmd_action,
1498 cmd_oid, pdata_buf);
1499 break;
1500
1501 case CMD_802_11_PAIRWISE_TSC:
1502 break;
1503 case CMD_802_11_GROUP_TSC:
1504 break;
1505
1506 case CMD_802_11_MAC_ADDRESS:
1507 ret = lbs_cmd_802_11_mac_address(priv, cmdptr, cmd_action);
1508 break;
1509
1510 case CMD_802_11_EEPROM_ACCESS:
1511 ret = lbs_cmd_802_11_eeprom_access(priv, cmdptr,
1512 cmd_action, pdata_buf);
1513 break;
1514
1515 case CMD_802_11_SET_AFC:
1516 case CMD_802_11_GET_AFC:
1517
1518 cmdptr->command = cpu_to_le16(cmd_no);
1519 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1520 S_DS_GEN);
1521
1522 memmove(&cmdptr->params.afc,
1523 pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1524
1525 ret = 0;
1526 goto done;
1527
1528 case CMD_802_11D_DOMAIN_INFO:
1529 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1530 cmd_no, cmd_action);
1531 break;
1532
1533 case CMD_802_11_SLEEP_PARAMS:
1534 ret = lbs_cmd_802_11_sleep_params(priv, cmdptr, cmd_action);
1535 break;
1536 case CMD_802_11_INACTIVITY_TIMEOUT:
1537 ret = lbs_cmd_802_11_inactivity_timeout(priv, cmdptr,
1538 cmd_action, pdata_buf);
1539 lbs_set_cmd_ctrl_node(priv, cmdnode, pdata_buf);
1540 break;
1541
1542 case CMD_802_11_TPC_CFG:
1543 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1544 cmdptr->size =
1545 cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1546 S_DS_GEN);
1547
1548 memmove(&cmdptr->params.tpccfg,
1549 pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1550
1551 ret = 0;
1552 break;
1553 case CMD_802_11_LED_GPIO_CTRL:
1554 {
1555 struct mrvlietypes_ledgpio *gpio =
1556 (struct mrvlietypes_ledgpio*)
1557 cmdptr->params.ledgpio.data;
1558
1559 memmove(&cmdptr->params.ledgpio,
1560 pdata_buf,
1561 sizeof(struct cmd_ds_802_11_led_ctrl));
1562
1563 cmdptr->command =
1564 cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1565
1566 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1567 cmdptr->size =
1568 cpu_to_le16(le16_to_cpu(gpio->header.len)
1569 + S_DS_GEN
1570 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1571 gpio->header.len = gpio->header.len;
1572
1573 ret = 0;
1574 break;
1575 }
1576 case CMD_802_11_SUBSCRIBE_EVENT:
1577 lbs_cmd_802_11_subscribe_event(priv, cmdptr,
1578 cmd_action, pdata_buf);
1579 break;
1580 case CMD_802_11_PWR_CFG:
1581 cmdptr->command = cpu_to_le16(CMD_802_11_PWR_CFG);
1582 cmdptr->size =
1583 cpu_to_le16(sizeof(struct cmd_ds_802_11_pwr_cfg) +
1584 S_DS_GEN);
1585 memmove(&cmdptr->params.pwrcfg, pdata_buf,
1586 sizeof(struct cmd_ds_802_11_pwr_cfg));
1587
1588 ret = 0;
1589 break;
1590 case CMD_BT_ACCESS:
1591 ret = lbs_cmd_bt_access(priv, cmdptr, cmd_action, pdata_buf);
1592 break;
1593
1594 case CMD_FWT_ACCESS:
1595 ret = lbs_cmd_fwt_access(priv, cmdptr, cmd_action, pdata_buf);
1596 break;
1597
1598 case CMD_GET_TSF:
1599 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1600 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1601 S_DS_GEN);
1602 ret = 0;
1603 break;
1604 case CMD_802_11_BEACON_CTRL:
1605 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1606 break;
1607 default:
1608 lbs_deb_host("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1609 ret = -1;
1610 break;
1611 }
1612
1613 /* return error, since the command preparation failed */
1614 if (ret != 0) {
1615 lbs_deb_host("PREP_CMD: command preparation failed\n");
1616 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1617 ret = -1;
1618 goto done;
1619 }
1620
1621 cmdnode->cmdwaitqwoken = 0;
1622
1623 lbs_queue_cmd(priv, cmdnode, 1);
1624 wake_up_interruptible(&priv->waitq);
1625
1626 if (wait_option & CMD_OPTION_WAITFORRSP) {
1627 lbs_deb_host("PREP_CMD: wait for response\n");
1628 might_sleep();
1629 wait_event_interruptible(cmdnode->cmdwait_q,
1630 cmdnode->cmdwaitqwoken);
1631 }
1632
1633 spin_lock_irqsave(&priv->driver_lock, flags);
1634 if (priv->cur_cmd_retcode) {
1635 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1636 priv->cur_cmd_retcode);
1637 priv->cur_cmd_retcode = 0;
1638 ret = -1;
1639 }
1640 spin_unlock_irqrestore(&priv->driver_lock, flags);
1641
1642 done:
1643 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1644 return ret;
1645 }
1646 EXPORT_SYMBOL_GPL(lbs_prepare_and_send_command);
1647
1648 /**
1649 * @brief This function allocates the command buffer and link
1650 * it to command free queue.
1651 *
1652 * @param priv A pointer to struct lbs_private structure
1653 * @return 0 or -1
1654 */
1655 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1656 {
1657 int ret = 0;
1658 u32 bufsize;
1659 u32 i;
1660 struct cmd_ctrl_node *cmdarray;
1661
1662 lbs_deb_enter(LBS_DEB_HOST);
1663
1664 /* Allocate and initialize the command array */
1665 bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1666 if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1667 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1668 ret = -1;
1669 goto done;
1670 }
1671 priv->cmd_array = cmdarray;
1672
1673 /* Allocate and initialize each command buffer in the command array */
1674 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1675 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1676 if (!cmdarray[i].cmdbuf) {
1677 lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1678 ret = -1;
1679 goto done;
1680 }
1681 }
1682
1683 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1684 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1685 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1686 }
1687 ret = 0;
1688
1689 done:
1690 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1691 return ret;
1692 }
1693
1694 /**
1695 * @brief This function frees the command buffer.
1696 *
1697 * @param priv A pointer to struct lbs_private structure
1698 * @return 0 or -1
1699 */
1700 int lbs_free_cmd_buffer(struct lbs_private *priv)
1701 {
1702 struct cmd_ctrl_node *cmdarray;
1703 unsigned int i;
1704
1705 lbs_deb_enter(LBS_DEB_HOST);
1706
1707 /* need to check if cmd array is allocated or not */
1708 if (priv->cmd_array == NULL) {
1709 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1710 goto done;
1711 }
1712
1713 cmdarray = priv->cmd_array;
1714
1715 /* Release shared memory buffers */
1716 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1717 if (cmdarray[i].cmdbuf) {
1718 kfree(cmdarray[i].cmdbuf);
1719 cmdarray[i].cmdbuf = NULL;
1720 }
1721 }
1722
1723 /* Release cmd_ctrl_node */
1724 if (priv->cmd_array) {
1725 kfree(priv->cmd_array);
1726 priv->cmd_array = NULL;
1727 }
1728
1729 done:
1730 lbs_deb_leave(LBS_DEB_HOST);
1731 return 0;
1732 }
1733
1734 /**
1735 * @brief This function gets a free command node if available in
1736 * command free queue.
1737 *
1738 * @param priv A pointer to struct lbs_private structure
1739 * @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1740 */
1741 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1742 {
1743 struct cmd_ctrl_node *tempnode;
1744 unsigned long flags;
1745
1746 lbs_deb_enter(LBS_DEB_HOST);
1747
1748 if (!priv)
1749 return NULL;
1750
1751 spin_lock_irqsave(&priv->driver_lock, flags);
1752
1753 if (!list_empty(&priv->cmdfreeq)) {
1754 tempnode = list_first_entry(&priv->cmdfreeq,
1755 struct cmd_ctrl_node, list);
1756 list_del(&tempnode->list);
1757 } else {
1758 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1759 tempnode = NULL;
1760 }
1761
1762 spin_unlock_irqrestore(&priv->driver_lock, flags);
1763
1764 lbs_deb_leave(LBS_DEB_HOST);
1765 return tempnode;
1766 }
1767
1768 /**
1769 * @brief This function cleans command node.
1770 *
1771 * @param ptempnode A pointer to cmdCtrlNode structure
1772 * @return n/a
1773 */
1774 static void cleanup_cmdnode(struct cmd_ctrl_node *cmdnode)
1775 {
1776 lbs_deb_enter(LBS_DEB_HOST);
1777
1778 if (!cmdnode)
1779 return;
1780 cmdnode->cmdwaitqwoken = 1;
1781 wake_up_interruptible(&cmdnode->cmdwait_q);
1782 cmdnode->pdata_buf = NULL;
1783 cmdnode->callback = NULL;
1784 cmdnode->callback_arg = 0;
1785
1786 memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1787
1788 lbs_deb_leave(LBS_DEB_HOST);
1789 }
1790
1791 /**
1792 * @brief This function initializes the command node.
1793 *
1794 * @param priv A pointer to struct lbs_private structure
1795 * @param ptempnode A pointer to cmd_ctrl_node structure
1796 * @param pdata_buf A pointer to informaion buffer
1797 * @return 0 or -1
1798 */
1799 static void lbs_set_cmd_ctrl_node(struct lbs_private *priv,
1800 struct cmd_ctrl_node *ptempnode,
1801 void *pdata_buf)
1802 {
1803 lbs_deb_enter(LBS_DEB_HOST);
1804
1805 if (!ptempnode)
1806 return;
1807
1808 ptempnode->pdata_buf = pdata_buf;
1809 ptempnode->callback = NULL;
1810 ptempnode->callback_arg = 0;
1811
1812 lbs_deb_leave(LBS_DEB_HOST);
1813 }
1814
1815 /**
1816 * @brief This function executes next command in command
1817 * pending queue. It will put fimware back to PS mode
1818 * if applicable.
1819 *
1820 * @param priv A pointer to struct lbs_private structure
1821 * @return 0 or -1
1822 */
1823 int lbs_execute_next_command(struct lbs_private *priv)
1824 {
1825 struct cmd_ctrl_node *cmdnode = NULL;
1826 struct cmd_header *cmd;
1827 unsigned long flags;
1828 int ret = 0;
1829
1830 // Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1831 // only caller to us is lbs_thread() and we get even when a
1832 // data packet is received
1833 lbs_deb_enter(LBS_DEB_THREAD);
1834
1835 spin_lock_irqsave(&priv->driver_lock, flags);
1836
1837 if (priv->cur_cmd) {
1838 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1839 spin_unlock_irqrestore(&priv->driver_lock, flags);
1840 ret = -1;
1841 goto done;
1842 }
1843
1844 if (!list_empty(&priv->cmdpendingq)) {
1845 cmdnode = list_first_entry(&priv->cmdpendingq,
1846 struct cmd_ctrl_node, list);
1847 }
1848
1849 spin_unlock_irqrestore(&priv->driver_lock, flags);
1850
1851 if (cmdnode) {
1852 cmd = cmdnode->cmdbuf;
1853
1854 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1855 if ((priv->psstate == PS_STATE_SLEEP) ||
1856 (priv->psstate == PS_STATE_PRE_SLEEP)) {
1857 lbs_deb_host(
1858 "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1859 le16_to_cpu(cmd->command),
1860 priv->psstate);
1861 ret = -1;
1862 goto done;
1863 }
1864 lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1865 "0x%04x in psstate %d\n",
1866 le16_to_cpu(cmd->command), priv->psstate);
1867 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1868 /*
1869 * 1. Non-PS command:
1870 * Queue it. set needtowakeup to TRUE if current state
1871 * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1872 * 2. PS command but not Exit_PS:
1873 * Ignore it.
1874 * 3. PS command Exit_PS:
1875 * Set needtowakeup to TRUE if current state is SLEEP,
1876 * otherwise send this command down to firmware
1877 * immediately.
1878 */
1879 if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1880 /* Prepare to send Exit PS,
1881 * this non PS command will be sent later */
1882 if ((priv->psstate == PS_STATE_SLEEP)
1883 || (priv->psstate == PS_STATE_PRE_SLEEP)
1884 ) {
1885 /* w/ new scheme, it will not reach here.
1886 since it is blocked in main_thread. */
1887 priv->needtowakeup = 1;
1888 } else
1889 lbs_ps_wakeup(priv, 0);
1890
1891 ret = 0;
1892 goto done;
1893 } else {
1894 /*
1895 * PS command. Ignore it if it is not Exit_PS.
1896 * otherwise send it down immediately.
1897 */
1898 struct cmd_ds_802_11_ps_mode *psm = (void *)cmd;
1899
1900 lbs_deb_host(
1901 "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1902 psm->action);
1903 if (psm->action !=
1904 cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1905 lbs_deb_host(
1906 "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1907 list_del(&cmdnode->list);
1908 spin_lock_irqsave(&priv->driver_lock, flags);
1909 lbs_complete_command(priv, cmdnode, 0);
1910 spin_unlock_irqrestore(&priv->driver_lock, flags);
1911
1912 ret = 0;
1913 goto done;
1914 }
1915
1916 if ((priv->psstate == PS_STATE_SLEEP) ||
1917 (priv->psstate == PS_STATE_PRE_SLEEP)) {
1918 lbs_deb_host(
1919 "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1920 list_del(&cmdnode->list);
1921 spin_lock_irqsave(&priv->driver_lock, flags);
1922 lbs_complete_command(priv, cmdnode, 0);
1923 spin_unlock_irqrestore(&priv->driver_lock, flags);
1924 priv->needtowakeup = 1;
1925
1926 ret = 0;
1927 goto done;
1928 }
1929
1930 lbs_deb_host(
1931 "EXEC_NEXT_CMD: sending EXIT_PS\n");
1932 }
1933 }
1934 list_del(&cmdnode->list);
1935 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1936 le16_to_cpu(cmd->command));
1937 lbs_submit_command(priv, cmdnode);
1938 } else {
1939 /*
1940 * check if in power save mode, if yes, put the device back
1941 * to PS mode
1942 */
1943 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1944 (priv->psstate == PS_STATE_FULL_POWER) &&
1945 ((priv->connect_status == LBS_CONNECTED) ||
1946 (priv->mesh_connect_status == LBS_CONNECTED))) {
1947 if (priv->secinfo.WPAenabled ||
1948 priv->secinfo.WPA2enabled) {
1949 /* check for valid WPA group keys */
1950 if (priv->wpa_mcast_key.len ||
1951 priv->wpa_unicast_key.len) {
1952 lbs_deb_host(
1953 "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1954 " go back to PS_SLEEP");
1955 lbs_ps_sleep(priv, 0);
1956 }
1957 } else {
1958 lbs_deb_host(
1959 "EXEC_NEXT_CMD: cmdpendingq empty, "
1960 "go back to PS_SLEEP");
1961 lbs_ps_sleep(priv, 0);
1962 }
1963 }
1964 }
1965
1966 ret = 0;
1967 done:
1968 lbs_deb_leave(LBS_DEB_THREAD);
1969 return ret;
1970 }
1971
1972 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1973 {
1974 union iwreq_data iwrq;
1975 u8 buf[50];
1976
1977 lbs_deb_enter(LBS_DEB_WEXT);
1978
1979 memset(&iwrq, 0, sizeof(union iwreq_data));
1980 memset(buf, 0, sizeof(buf));
1981
1982 snprintf(buf, sizeof(buf) - 1, "%s", str);
1983
1984 iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1985
1986 /* Send Event to upper layer */
1987 lbs_deb_wext("event indication string %s\n", (char *)buf);
1988 lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1989 lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1990
1991 wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1992
1993 lbs_deb_leave(LBS_DEB_WEXT);
1994 }
1995
1996 static int sendconfirmsleep(struct lbs_private *priv, u8 *cmdptr, u16 size)
1997 {
1998 unsigned long flags;
1999 int ret = 0;
2000
2001 lbs_deb_enter(LBS_DEB_HOST);
2002
2003 lbs_deb_host("SEND_SLEEPC_CMD: before download, cmd size %d\n",
2004 size);
2005
2006 lbs_deb_hex(LBS_DEB_HOST, "sleep confirm command", cmdptr, size);
2007
2008 ret = priv->hw_host_to_card(priv, MVMS_CMD, cmdptr, size);
2009 priv->dnld_sent = DNLD_RES_RECEIVED;
2010
2011 spin_lock_irqsave(&priv->driver_lock, flags);
2012 if (priv->intcounter || priv->currenttxskb)
2013 lbs_deb_host("SEND_SLEEPC_CMD: intcounter %d, currenttxskb %p\n",
2014 priv->intcounter, priv->currenttxskb);
2015 spin_unlock_irqrestore(&priv->driver_lock, flags);
2016
2017 if (ret) {
2018 lbs_pr_alert(
2019 "SEND_SLEEPC_CMD: Host to Card failed for Confirm Sleep\n");
2020 } else {
2021 spin_lock_irqsave(&priv->driver_lock, flags);
2022 if (!priv->intcounter) {
2023 priv->psstate = PS_STATE_SLEEP;
2024 } else {
2025 lbs_deb_host("SEND_SLEEPC_CMD: after sent, intcounter %d\n",
2026 priv->intcounter);
2027 }
2028 spin_unlock_irqrestore(&priv->driver_lock, flags);
2029
2030 lbs_deb_host("SEND_SLEEPC_CMD: sent confirm sleep\n");
2031 }
2032
2033 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2034 return ret;
2035 }
2036
2037 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
2038 {
2039 lbs_deb_enter(LBS_DEB_HOST);
2040
2041 /*
2042 * PS is currently supported only in Infrastructure mode
2043 * Remove this check if it is to be supported in IBSS mode also
2044 */
2045
2046 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
2047 CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
2048
2049 lbs_deb_leave(LBS_DEB_HOST);
2050 }
2051
2052 /**
2053 * @brief This function sends Exit_PS command to firmware.
2054 *
2055 * @param priv A pointer to struct lbs_private structure
2056 * @param wait_option wait response or not
2057 * @return n/a
2058 */
2059 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
2060 {
2061 __le32 Localpsmode;
2062
2063 lbs_deb_enter(LBS_DEB_HOST);
2064
2065 Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
2066
2067 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
2068 CMD_SUBCMD_EXIT_PS,
2069 wait_option, 0, &Localpsmode);
2070
2071 lbs_deb_leave(LBS_DEB_HOST);
2072 }
2073
2074 /**
2075 * @brief This function checks condition and prepares to
2076 * send sleep confirm command to firmware if ok.
2077 *
2078 * @param priv A pointer to struct lbs_private structure
2079 * @param psmode Power Saving mode
2080 * @return n/a
2081 */
2082 void lbs_ps_confirm_sleep(struct lbs_private *priv, u16 psmode)
2083 {
2084 unsigned long flags =0;
2085 u8 allowed = 1;
2086
2087 lbs_deb_enter(LBS_DEB_HOST);
2088
2089 if (priv->dnld_sent) {
2090 allowed = 0;
2091 lbs_deb_host("dnld_sent was set\n");
2092 }
2093
2094 spin_lock_irqsave(&priv->driver_lock, flags);
2095 if (priv->cur_cmd) {
2096 allowed = 0;
2097 lbs_deb_host("cur_cmd was set\n");
2098 }
2099 if (priv->intcounter > 0) {
2100 allowed = 0;
2101 lbs_deb_host("intcounter %d\n", priv->intcounter);
2102 }
2103 spin_unlock_irqrestore(&priv->driver_lock, flags);
2104
2105 if (allowed) {
2106 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
2107 sendconfirmsleep(priv, (u8 *) & priv->lbs_ps_confirm_sleep,
2108 sizeof(struct PS_CMD_ConfirmSleep));
2109 } else {
2110 lbs_deb_host("sleep confirm has been delayed\n");
2111 }
2112
2113 lbs_deb_leave(LBS_DEB_HOST);
2114 }
2115
2116
2117 /**
2118 * @brief Simple callback that copies response back into command
2119 *
2120 * @param priv A pointer to struct lbs_private structure
2121 * @param extra A pointer to the original command structure for which
2122 * 'resp' is a response
2123 * @param resp A pointer to the command response
2124 *
2125 * @return 0 on success, error on failure
2126 */
2127 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
2128 struct cmd_header *resp)
2129 {
2130 struct cmd_header *buf = (void *)extra;
2131 uint16_t copy_len;
2132
2133 lbs_deb_enter(LBS_DEB_CMD);
2134
2135 copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
2136 lbs_deb_cmd("Copying back %u bytes; command response was %u bytes, "
2137 "copy back buffer was %u bytes\n", copy_len,
2138 le16_to_cpu(resp->size), le16_to_cpu(buf->size));
2139 memcpy(buf, resp, copy_len);
2140
2141 lbs_deb_leave(LBS_DEB_CMD);
2142 return 0;
2143 }
2144 EXPORT_SYMBOL_GPL(lbs_cmd_copyback);
2145
2146 /**
2147 * @brief Simple way to call firmware functions
2148 *
2149 * @param priv A pointer to struct lbs_private structure
2150 * @param psmode one of the many CMD_802_11_xxxx
2151 * @param cmd pointer to the parameters structure for above command
2152 * (this should not include the command, size, sequence
2153 * and result fields from struct cmd_ds_gen)
2154 * @param cmd_size size structure pointed to by cmd
2155 * @param rsp pointer to an area where the result should be placed
2156 * @param rsp_size pointer to the size of the rsp area. If the firmware
2157 * returns fewer bytes, then this *rsp_size will be
2158 * changed to the actual size.
2159 * @return -1 in case of a higher level error, otherwise
2160 * the result code from the firmware
2161 */
2162 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2163 struct cmd_header *in_cmd, int in_cmd_size,
2164 int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2165 unsigned long callback_arg)
2166 {
2167 struct cmd_ctrl_node *cmdnode;
2168 unsigned long flags;
2169 int ret = 0;
2170
2171 lbs_deb_enter(LBS_DEB_HOST);
2172
2173 if (!priv) {
2174 lbs_deb_host("PREP_CMD: priv is NULL\n");
2175 ret = -1;
2176 goto done;
2177 }
2178
2179 if (priv->surpriseremoved) {
2180 lbs_deb_host("PREP_CMD: card removed\n");
2181 ret = -1;
2182 goto done;
2183 }
2184
2185 cmdnode = lbs_get_cmd_ctrl_node(priv);
2186 if (cmdnode == NULL) {
2187 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
2188
2189 /* Wake up main thread to execute next command */
2190 wake_up_interruptible(&priv->waitq);
2191 ret = -1;
2192 goto done;
2193 }
2194
2195 cmdnode->callback = callback;
2196 cmdnode->callback_arg = callback_arg;
2197
2198 /* Copy the incoming command to the buffer */
2199 memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
2200
2201 /* Set sequence number, clean result, move to buffer */
2202 priv->seqnum++;
2203 cmdnode->cmdbuf->command = cpu_to_le16(command);
2204 cmdnode->cmdbuf->size = cpu_to_le16(in_cmd_size);
2205 cmdnode->cmdbuf->seqnum = cpu_to_le16(priv->seqnum);
2206 cmdnode->cmdbuf->result = 0;
2207
2208 lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
2209
2210 /* here was the big old switch() statement, which is now obsolete,
2211 * because the caller of lbs_cmd() sets up all of *cmd for us. */
2212
2213 cmdnode->cmdwaitqwoken = 0;
2214 lbs_queue_cmd(priv, cmdnode, 1);
2215 wake_up_interruptible(&priv->waitq);
2216
2217 might_sleep();
2218 wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2219
2220 spin_lock_irqsave(&priv->driver_lock, flags);
2221 if (priv->cur_cmd_retcode) {
2222 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
2223 priv->cur_cmd_retcode);
2224 priv->cur_cmd_retcode = 0;
2225 ret = -1;
2226 }
2227 spin_unlock_irqrestore(&priv->driver_lock, flags);
2228
2229 done:
2230 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2231 return ret;
2232 }
2233 EXPORT_SYMBOL_GPL(__lbs_cmd);
2234
2235
kernel-based virtual machine