2 * This file contains the handling of command.
3 * It prepares command and sends it to firmware when it is ready.
6 #include <net/iw_handler.h>
7 #include <linux/kfifo.h>
17 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv);
21 * @brief Simple callback that copies response back into command
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
28 * @return 0 on success, error on failure
30 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
31 struct cmd_header *resp)
33 struct cmd_header *buf = (void *)extra;
36 copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
37 memcpy(buf, resp, copy_len);
40 EXPORT_SYMBOL_GPL(lbs_cmd_copyback);
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.
48 * @param extra ignored
51 * @return 0 for success
53 static int lbs_cmd_async_callback(struct lbs_private *priv, unsigned long extra,
54 struct cmd_header *resp)
61 * @brief Checks whether a command is allowed in Power Save mode
63 * @param command the command ID
64 * @return 1 if allowed, 0 if not allowed
66 static u8 is_command_allowed_in_ps(u16 cmd)
78 * @brief Updates the hardware details like MAC address and regulatory region
80 * @param priv A pointer to struct lbs_private structure
82 * @return 0 on success, error on failure
84 int lbs_update_hw_spec(struct lbs_private *priv)
86 struct cmd_ds_get_hw_spec cmd;
91 lbs_deb_enter(LBS_DEB_CMD);
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);
100 priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
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);
108 /* Some firmware capabilities:
109 * CF card firmware 5.0.16p0: cap 0x00000303
110 * USB dongle firmware 5.110.17p2: cap 0x00000303
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,
119 lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
120 cmd.hwifversion, cmd.version);
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.
126 priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
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])
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");
140 if (priv->current_addr[0] == 0xff)
141 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
143 memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
145 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
147 if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
152 if (lbs_set_universaltable(priv, 0)) {
158 lbs_deb_leave(LBS_DEB_CMD);
162 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria)
164 struct cmd_ds_host_sleep cmd_config;
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;
172 ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
174 lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
175 priv->wol_criteria = criteria;
177 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
182 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
184 static int lbs_cmd_802_11_ps_mode(struct cmd_ds_command *cmd,
187 struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
189 lbs_deb_enter(LBS_DEB_CMD);
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) +
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");
200 psm->locallisteninterval = 0;
201 psm->nullpktinterval = 0;
203 cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
206 case CMD_SUBCMD_EXIT_PS:
207 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
210 case CMD_SUBCMD_SLEEP_CONFIRMED:
211 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
218 lbs_deb_leave(LBS_DEB_CMD);
222 int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
223 uint16_t cmd_action, uint16_t *timeout)
225 struct cmd_ds_802_11_inactivity_timeout cmd;
228 lbs_deb_enter(LBS_DEB_CMD);
230 cmd.hdr.command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
231 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
233 cmd.action = cpu_to_le16(cmd_action);
235 if (cmd_action == CMD_ACT_SET)
236 cmd.timeout = cpu_to_le16(*timeout);
240 ret = lbs_cmd_with_response(priv, CMD_802_11_INACTIVITY_TIMEOUT, &cmd);
243 *timeout = le16_to_cpu(cmd.timeout);
245 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
249 int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
250 struct sleep_params *sp)
252 struct cmd_ds_802_11_sleep_params cmd;
255 lbs_deb_enter(LBS_DEB_CMD);
257 if (cmd_action == CMD_ACT_GET) {
258 memset(&cmd, 0, sizeof(cmd));
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);
267 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
268 cmd.action = cpu_to_le16(cmd_action);
270 ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
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);
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);
287 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
291 int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
292 struct assoc_request *assoc)
294 struct cmd_ds_802_11_set_wep cmd;
297 lbs_deb_enter(LBS_DEB_CMD);
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));
303 cmd.action = cpu_to_le16(cmd_action);
305 if (cmd_action == CMD_ACT_ADD) {
308 /* default tx key index */
309 cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
310 CMD_WEP_KEY_INDEX_MASK);
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];
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);
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);
330 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
337 } else if (cmd_action == CMD_ACT_REMOVE) {
338 /* ACT_REMOVE clears _all_ WEP keys */
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);
346 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
348 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
352 int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
355 struct cmd_ds_802_11_enable_rsn cmd;
358 lbs_deb_enter(LBS_DEB_CMD);
360 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
361 cmd.action = cpu_to_le16(cmd_action);
363 if (cmd_action == CMD_ACT_GET)
367 cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
369 cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
370 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
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);
377 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
381 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
384 lbs_deb_enter(LBS_DEB_CMD);
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);
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);
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);
403 int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
404 struct assoc_request *assoc)
406 struct cmd_ds_802_11_key_material cmd;
410 lbs_deb_enter(LBS_DEB_CMD);
412 cmd.action = cpu_to_le16(cmd_action);
413 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
415 if (cmd_action == CMD_ACT_GET) {
416 cmd.hdr.size = cpu_to_le16(S_DS_GEN + 2);
418 memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
420 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
421 set_one_wpa_key(&cmd.keyParamSet[index],
422 &assoc->wpa_unicast_key);
426 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
427 set_one_wpa_key(&cmd.keyParamSet[index],
428 &assoc->wpa_mcast_key);
432 /* The common header and as many keys as we included */
433 cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
434 keyParamSet[index]));
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];
442 while (buf_ptr < resp_end) {
443 struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
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);
451 end = (void *)keyparam + sizeof(keyparam->type)
452 + sizeof(keyparam->length) + param_set_len;
454 /* Make sure we don't access past the end of the IEs */
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;
465 /* Copy returned key into driver */
466 memset(key, 0, sizeof(struct enc_key));
467 if (key_len > sizeof(key->key))
469 key->type = key_type;
470 key->flags = key_flags;
472 memcpy(key->key, keyparam->key, key->len);
478 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
482 static int lbs_cmd_802_11_reset(struct cmd_ds_command *cmd, int cmd_action)
484 struct cmd_ds_802_11_reset *reset = &cmd->params.reset;
486 lbs_deb_enter(LBS_DEB_CMD);
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);
492 lbs_deb_leave(LBS_DEB_CMD);
496 static int lbs_cmd_802_11_snmp_mib(struct lbs_private *priv,
497 struct cmd_ds_command *cmd,
499 int cmd_oid, void *pdata_buf)
501 struct cmd_ds_802_11_snmp_mib *pSNMPMIB = &cmd->params.smib;
504 lbs_deb_enter(LBS_DEB_CMD);
506 lbs_deb_cmd("SNMP_CMD: cmd_oid = 0x%x\n", cmd_oid);
508 cmd->command = cpu_to_le16(CMD_802_11_SNMP_MIB);
509 cmd->size = cpu_to_le16(sizeof(*pSNMPMIB) + S_DS_GEN);
512 case OID_802_11_INFRASTRUCTURE_MODE:
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;
521 /* Infra and Auto modes */
522 ucTemp = SNMP_MIB_VALUE_INFRA;
525 memmove(pSNMPMIB->value, &ucTemp, sizeof(u8));
530 case OID_802_11D_ENABLE:
534 pSNMPMIB->oid = cpu_to_le16((u16) DOT11D_I);
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);
546 case OID_802_11_FRAGMENTATION_THRESHOLD:
550 pSNMPMIB->oid = cpu_to_le16((u16) FRAGTHRESH_I);
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);
566 case OID_802_11_RTS_THRESHOLD:
570 pSNMPMIB->oid = cpu_to_le16(RTSTHRESH_I);
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);
584 case OID_802_11_TX_RETRYCOUNT:
585 pSNMPMIB->oid = cpu_to_le16((u16) SHORT_RETRYLIM_I);
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);
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));
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));
612 lbs_deb_leave(LBS_DEB_CMD);
616 static int lbs_cmd_802_11_rf_tx_power(struct cmd_ds_command *cmd,
617 u16 cmd_action, void *pdata_buf)
620 struct cmd_ds_802_11_rf_tx_power *prtp = &cmd->params.txp;
622 lbs_deb_enter(LBS_DEB_CMD);
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);
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));
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;
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);
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);
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));
655 lbs_deb_leave(LBS_DEB_CMD);
659 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
660 u16 cmd_action, void *pdata_buf)
662 struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
664 cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
666 cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
669 monitor->action = cpu_to_le16(cmd_action);
670 if (cmd_action == CMD_ACT_SET) {
672 cpu_to_le16((u16) (*(u32 *) pdata_buf));
678 static int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
679 struct cmd_ds_command *cmd,
682 struct cmd_ds_802_11_rate_adapt_rateset
683 *rateadapt = &cmd->params.rateset;
685 lbs_deb_enter(LBS_DEB_CMD);
687 cpu_to_le16(sizeof(struct cmd_ds_802_11_rate_adapt_rateset)
689 cmd->command = cpu_to_le16(CMD_802_11_RATE_ADAPT_RATESET);
691 rateadapt->action = cpu_to_le16(cmd_action);
692 rateadapt->enablehwauto = cpu_to_le16(priv->enablehwauto);
693 rateadapt->bitmap = cpu_to_le16(priv->ratebitmap);
695 lbs_deb_leave(LBS_DEB_CMD);
700 * @brief Set the data rate
702 * @param priv A pointer to struct lbs_private structure
703 * @param rate The desired data rate, or 0 to clear a locked rate
705 * @return 0 on success, error on failure
707 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
709 struct cmd_ds_802_11_data_rate cmd;
712 lbs_deb_enter(LBS_DEB_CMD);
714 memset(&cmd, 0, sizeof(cmd));
715 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
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"
726 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
728 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
729 lbs_deb_cmd("DATA_RATE: setting auto\n");
732 ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
736 lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
738 /* FIXME: get actual rates FW can do if this command actually returns
739 * all data rates supported.
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);
745 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
750 * @brief Get the radio channel
752 * @param priv A pointer to struct lbs_private structure
754 * @return The channel on success, error on failure
756 int lbs_get_channel(struct lbs_private *priv)
758 struct cmd_ds_802_11_rf_channel cmd;
761 lbs_deb_enter(LBS_DEB_CMD);
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);
767 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
771 ret = le16_to_cpu(cmd.channel);
772 lbs_deb_cmd("current radio channel is %d\n", ret);
775 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
779 int lbs_update_channel(struct lbs_private *priv)
783 /* the channel in f/w could be out of sync; get the current channel */
784 lbs_deb_enter(LBS_DEB_ASSOC);
786 ret = lbs_get_channel(priv);
788 priv->curbssparams.channel = ret;
791 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
796 * @brief Set the radio channel
798 * @param priv A pointer to struct lbs_private structure
799 * @param channel The desired channel, or 0 to clear a locked channel
801 * @return 0 on success, error on failure
803 int lbs_set_channel(struct lbs_private *priv, u8 channel)
805 struct cmd_ds_802_11_rf_channel cmd;
806 u8 old_channel = priv->curbssparams.channel;
809 lbs_deb_enter(LBS_DEB_CMD);
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);
816 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
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);
825 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
829 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
830 struct cmd_ds_command *cmd)
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);
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;
846 lbs_deb_leave(LBS_DEB_CMD);
850 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
851 u8 cmd_action, void *pdata_buf)
853 struct lbs_offset_value *offval;
855 lbs_deb_enter(LBS_DEB_CMD);
857 offval = (struct lbs_offset_value *)pdata_buf;
859 switch (le16_to_cpu(cmdptr->command)) {
860 case CMD_MAC_REG_ACCESS:
862 struct cmd_ds_mac_reg_access *macreg;
865 cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
868 (struct cmd_ds_mac_reg_access *)&cmdptr->params.
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);
878 case CMD_BBP_REG_ACCESS:
880 struct cmd_ds_bbp_reg_access *bbpreg;
884 (struct cmd_ds_bbp_reg_access)
887 (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
890 bbpreg->action = cpu_to_le16(cmd_action);
891 bbpreg->offset = cpu_to_le16((u16) offval->offset);
892 bbpreg->value = (u8) offval->value;
897 case CMD_RF_REG_ACCESS:
899 struct cmd_ds_rf_reg_access *rfreg;
903 (struct cmd_ds_rf_reg_access) +
906 (struct cmd_ds_rf_reg_access *)&cmdptr->params.
909 rfreg->action = cpu_to_le16(cmd_action);
910 rfreg->offset = cpu_to_le16((u16) offval->offset);
911 rfreg->value = (u8) offval->value;
920 lbs_deb_leave(LBS_DEB_CMD);
924 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
925 u16 cmd_action, void *pdata_buf)
927 struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
928 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
930 cmd->command = cpu_to_le16(CMD_BT_ACCESS);
931 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
933 bt_access->action = cpu_to_le16(cmd_action);
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);
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);
944 case CMD_ACT_BT_ACCESS_LIST:
945 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
947 case CMD_ACT_BT_ACCESS_RESET:
949 case CMD_ACT_BT_ACCESS_SET_INVERT:
950 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
952 case CMD_ACT_BT_ACCESS_GET_INVERT:
957 lbs_deb_leave(LBS_DEB_CMD);
961 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
962 u16 cmd_action, void *pdata_buf)
964 struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
965 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
967 cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
968 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
972 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
974 memset(fwt_access, 0, sizeof(*fwt_access));
976 fwt_access->action = cpu_to_le16(cmd_action);
978 lbs_deb_leave(LBS_DEB_CMD);
982 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
983 struct cmd_ds_mesh_access *cmd)
987 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
989 cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
990 cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
993 cmd->action = cpu_to_le16(cmd_action);
995 ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
997 lbs_deb_leave(LBS_DEB_CMD);
1001 int lbs_mesh_config(struct lbs_private *priv, uint16_t enable, uint16_t chan)
1003 struct cmd_ds_mesh_config cmd;
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));
1012 cmd.length = cpu_to_le16(priv->mesh_ssid_len);
1013 memcpy(cmd.data, priv->mesh_ssid, priv->mesh_ssid_len);
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);
1021 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1022 struct cmd_ds_command *cmd,
1025 struct cmd_ds_802_11_beacon_control
1026 *bcn_ctrl = &cmd->params.bcn_ctrl;
1028 lbs_deb_enter(LBS_DEB_CMD);
1030 cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1032 cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
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);
1038 lbs_deb_leave(LBS_DEB_CMD);
1042 static void lbs_queue_cmd(struct lbs_private *priv,
1043 struct cmd_ctrl_node *cmdnode)
1045 unsigned long flags;
1048 lbs_deb_enter(LBS_DEB_HOST);
1051 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1054 if (!cmdnode->cmdbuf->size) {
1055 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1058 cmdnode->result = 0;
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];
1064 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1065 if (priv->psstate != PS_STATE_FULL_POWER)
1070 spin_lock_irqsave(&priv->driver_lock, flags);
1073 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1075 list_add(&cmdnode->list, &priv->cmdpendingq);
1077 spin_unlock_irqrestore(&priv->driver_lock, flags);
1079 lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1080 le16_to_cpu(cmdnode->cmdbuf->command));
1083 lbs_deb_leave(LBS_DEB_HOST);
1086 static void lbs_submit_command(struct lbs_private *priv,
1087 struct cmd_ctrl_node *cmdnode)
1089 unsigned long flags;
1090 struct cmd_header *cmd;
1096 lbs_deb_enter(LBS_DEB_HOST);
1098 cmd = cmdnode->cmdbuf;
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);
1105 cmdsize = le16_to_cpu(cmd->size);
1106 command = le16_to_cpu(cmd->command);
1108 /* These commands take longer */
1109 if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1110 command == CMD_802_11_AUTHENTICATE)
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);
1117 ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
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 */
1126 /* Setup the timer after transmit command */
1127 mod_timer(&priv->command_timer, jiffies + timeo);
1129 lbs_deb_leave(LBS_DEB_HOST);
1133 * This function inserts command node to cmdfreeq
1134 * after cleans it. Requires priv->driver_lock held.
1136 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1137 struct cmd_ctrl_node *cmdnode)
1139 lbs_deb_enter(LBS_DEB_HOST);
1144 cmdnode->callback = NULL;
1145 cmdnode->callback_arg = 0;
1147 memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1149 list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1151 lbs_deb_leave(LBS_DEB_HOST);
1154 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1155 struct cmd_ctrl_node *ptempcmd)
1157 unsigned long flags;
1159 spin_lock_irqsave(&priv->driver_lock, flags);
1160 __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1161 spin_unlock_irqrestore(&priv->driver_lock, flags);
1164 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1167 if (cmd == priv->cur_cmd)
1168 priv->cur_cmd_retcode = result;
1170 cmd->result = result;
1171 cmd->cmdwaitqwoken = 1;
1172 wake_up_interruptible(&cmd->cmdwait_q);
1174 if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1175 __lbs_cleanup_and_insert_cmd(priv, cmd);
1176 priv->cur_cmd = NULL;
1179 int lbs_set_radio_control(struct lbs_private *priv)
1182 struct cmd_ds_802_11_radio_control cmd;
1184 lbs_deb_enter(LBS_DEB_CMD);
1186 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1187 cmd.action = cpu_to_le16(CMD_ACT_SET);
1189 switch (priv->preamble) {
1190 case CMD_TYPE_SHORT_PREAMBLE:
1191 cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
1194 case CMD_TYPE_LONG_PREAMBLE:
1195 cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
1198 case CMD_TYPE_AUTO_PREAMBLE:
1200 cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
1205 cmd.control |= cpu_to_le16(TURN_ON_RF);
1207 cmd.control &= cpu_to_le16(~TURN_ON_RF);
1209 lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon,
1212 ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1214 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1218 void lbs_set_mac_control(struct lbs_private *priv)
1220 struct cmd_ds_mac_control cmd;
1222 lbs_deb_enter(LBS_DEB_CMD);
1224 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1225 cmd.action = cpu_to_le16(priv->mac_control);
1228 lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
1230 lbs_deb_leave(LBS_DEB_CMD);
1234 * @brief This function prepare the command before send to firmware.
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
1244 int lbs_prepare_and_send_command(struct lbs_private *priv,
1247 u16 wait_option, u32 cmd_oid, void *pdata_buf)
1250 struct cmd_ctrl_node *cmdnode;
1251 struct cmd_ds_command *cmdptr;
1252 unsigned long flags;
1254 lbs_deb_enter(LBS_DEB_HOST);
1257 lbs_deb_host("PREP_CMD: priv is NULL\n");
1262 if (priv->surpriseremoved) {
1263 lbs_deb_host("PREP_CMD: card removed\n");
1268 cmdnode = lbs_get_cmd_ctrl_node(priv);
1270 if (cmdnode == NULL) {
1271 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1273 /* Wake up main thread to execute next command */
1274 wake_up_interruptible(&priv->waitq);
1279 cmdnode->callback = NULL;
1280 cmdnode->callback_arg = (unsigned long)pdata_buf;
1282 cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1284 lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1286 /* Set sequence number, command and INT option */
1288 cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1290 cmdptr->command = cpu_to_le16(cmd_no);
1294 case CMD_802_11_PS_MODE:
1295 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1298 case CMD_802_11_ASSOCIATE:
1299 case CMD_802_11_REASSOCIATE:
1300 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1303 case CMD_802_11_DEAUTHENTICATE:
1304 ret = lbs_cmd_80211_deauthenticate(priv, cmdptr);
1307 case CMD_802_11_AD_HOC_START:
1308 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1311 case CMD_802_11_RESET:
1312 ret = lbs_cmd_802_11_reset(cmdptr, cmd_action);
1315 case CMD_802_11_AUTHENTICATE:
1316 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1319 case CMD_802_11_SNMP_MIB:
1320 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1321 cmd_action, cmd_oid, pdata_buf);
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);
1330 case CMD_802_11_RF_TX_POWER:
1331 ret = lbs_cmd_802_11_rf_tx_power(cmdptr,
1332 cmd_action, pdata_buf);
1335 case CMD_802_11_RATE_ADAPT_RATESET:
1336 ret = lbs_cmd_802_11_rate_adapt_rateset(priv,
1337 cmdptr, cmd_action);
1340 case CMD_802_11_MONITOR_MODE:
1341 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1342 cmd_action, pdata_buf);
1345 case CMD_802_11_AD_HOC_JOIN:
1346 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1349 case CMD_802_11_RSSI:
1350 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1353 case CMD_802_11_AD_HOC_STOP:
1354 ret = lbs_cmd_80211_ad_hoc_stop(cmdptr);
1357 case CMD_802_11_SET_AFC:
1358 case CMD_802_11_GET_AFC:
1360 cmdptr->command = cpu_to_le16(cmd_no);
1361 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1364 memmove(&cmdptr->params.afc,
1365 pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1370 case CMD_802_11D_DOMAIN_INFO:
1371 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1372 cmd_no, cmd_action);
1375 case CMD_802_11_TPC_CFG:
1376 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1378 cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1381 memmove(&cmdptr->params.tpccfg,
1382 pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1386 case CMD_802_11_LED_GPIO_CTRL:
1388 struct mrvlietypes_ledgpio *gpio =
1389 (struct mrvlietypes_ledgpio*)
1390 cmdptr->params.ledgpio.data;
1392 memmove(&cmdptr->params.ledgpio,
1394 sizeof(struct cmd_ds_802_11_led_ctrl));
1397 cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1399 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1401 cpu_to_le16(le16_to_cpu(gpio->header.len)
1403 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1404 gpio->header.len = gpio->header.len;
1411 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1414 case CMD_FWT_ACCESS:
1415 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1419 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1420 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1424 case CMD_802_11_BEACON_CTRL:
1425 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1428 lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1433 /* return error, since the command preparation failed */
1435 lbs_deb_host("PREP_CMD: command preparation failed\n");
1436 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1441 cmdnode->cmdwaitqwoken = 0;
1443 lbs_queue_cmd(priv, cmdnode);
1444 wake_up_interruptible(&priv->waitq);
1446 if (wait_option & CMD_OPTION_WAITFORRSP) {
1447 lbs_deb_host("PREP_CMD: wait for response\n");
1449 wait_event_interruptible(cmdnode->cmdwait_q,
1450 cmdnode->cmdwaitqwoken);
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;
1460 spin_unlock_irqrestore(&priv->driver_lock, flags);
1463 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1468 * @brief This function allocates the command buffer and link
1469 * it to command free queue.
1471 * @param priv A pointer to struct lbs_private structure
1474 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1479 struct cmd_ctrl_node *cmdarray;
1481 lbs_deb_enter(LBS_DEB_HOST);
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");
1490 priv->cmd_array = cmdarray;
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");
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]);
1509 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1514 * @brief This function frees the command buffer.
1516 * @param priv A pointer to struct lbs_private structure
1519 int lbs_free_cmd_buffer(struct lbs_private *priv)
1521 struct cmd_ctrl_node *cmdarray;
1524 lbs_deb_enter(LBS_DEB_HOST);
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");
1532 cmdarray = priv->cmd_array;
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;
1542 /* Release cmd_ctrl_node */
1543 if (priv->cmd_array) {
1544 kfree(priv->cmd_array);
1545 priv->cmd_array = NULL;
1549 lbs_deb_leave(LBS_DEB_HOST);
1554 * @brief This function gets a free command node if available in
1555 * command free queue.
1557 * @param priv A pointer to struct lbs_private structure
1558 * @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1560 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1562 struct cmd_ctrl_node *tempnode;
1563 unsigned long flags;
1565 lbs_deb_enter(LBS_DEB_HOST);
1570 spin_lock_irqsave(&priv->driver_lock, flags);
1572 if (!list_empty(&priv->cmdfreeq)) {
1573 tempnode = list_first_entry(&priv->cmdfreeq,
1574 struct cmd_ctrl_node, list);
1575 list_del(&tempnode->list);
1577 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1581 spin_unlock_irqrestore(&priv->driver_lock, flags);
1583 lbs_deb_leave(LBS_DEB_HOST);
1588 * @brief This function executes next command in command
1589 * pending queue. It will put fimware back to PS mode
1592 * @param priv A pointer to struct lbs_private structure
1595 int lbs_execute_next_command(struct lbs_private *priv)
1597 struct cmd_ctrl_node *cmdnode = NULL;
1598 struct cmd_header *cmd;
1599 unsigned long flags;
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);
1607 spin_lock_irqsave(&priv->driver_lock, flags);
1609 if (priv->cur_cmd) {
1610 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1611 spin_unlock_irqrestore(&priv->driver_lock, flags);
1616 if (!list_empty(&priv->cmdpendingq)) {
1617 cmdnode = list_first_entry(&priv->cmdpendingq,
1618 struct cmd_ctrl_node, list);
1621 spin_unlock_irqrestore(&priv->driver_lock, flags);
1624 cmd = cmdnode->cmdbuf;
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)) {
1630 "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1631 le16_to_cpu(cmd->command),
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) {
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:
1646 * 3. PS command Exit_PS:
1647 * Set needtowakeup to TRUE if current state is SLEEP,
1648 * otherwise send this command down to firmware
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)
1657 /* w/ new scheme, it will not reach here.
1658 since it is blocked in main_thread. */
1659 priv->needtowakeup = 1;
1661 lbs_ps_wakeup(priv, 0);
1667 * PS command. Ignore it if it is not Exit_PS.
1668 * otherwise send it down immediately.
1670 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1673 "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1676 cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
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);
1688 if ((priv->psstate == PS_STATE_SLEEP) ||
1689 (priv->psstate == PS_STATE_PRE_SLEEP)) {
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;
1703 "EXEC_NEXT_CMD: sending EXIT_PS\n");
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);
1712 * check if in power save mode, if yes, put the device back
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) {
1725 "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1726 " go back to PS_SLEEP");
1727 lbs_ps_sleep(priv, 0);
1731 "EXEC_NEXT_CMD: cmdpendingq empty, "
1732 "go back to PS_SLEEP");
1733 lbs_ps_sleep(priv, 0);
1740 lbs_deb_leave(LBS_DEB_THREAD);
1744 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1746 union iwreq_data iwrq;
1749 lbs_deb_enter(LBS_DEB_WEXT);
1751 memset(&iwrq, 0, sizeof(union iwreq_data));
1752 memset(buf, 0, sizeof(buf));
1754 snprintf(buf, sizeof(buf) - 1, "%s", str);
1756 iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
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);
1763 wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1765 lbs_deb_leave(LBS_DEB_WEXT);
1768 static void lbs_send_confirmsleep(struct lbs_private *priv)
1770 unsigned long flags;
1773 lbs_deb_enter(LBS_DEB_HOST);
1774 lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1775 sizeof(confirm_sleep));
1777 ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1778 sizeof(confirm_sleep));
1780 lbs_pr_alert("confirm_sleep failed\n");
1784 spin_lock_irqsave(&priv->driver_lock, flags);
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;
1790 spin_unlock_irqrestore(&priv->driver_lock, flags);
1793 lbs_deb_leave(LBS_DEB_HOST);
1796 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1798 lbs_deb_enter(LBS_DEB_HOST);
1801 * PS is currently supported only in Infrastructure mode
1802 * Remove this check if it is to be supported in IBSS mode also
1805 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1806 CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1808 lbs_deb_leave(LBS_DEB_HOST);
1812 * @brief This function sends Exit_PS command to firmware.
1814 * @param priv A pointer to struct lbs_private structure
1815 * @param wait_option wait response or not
1818 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1822 lbs_deb_enter(LBS_DEB_HOST);
1824 Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1826 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1828 wait_option, 0, &Localpsmode);
1830 lbs_deb_leave(LBS_DEB_HOST);
1834 * @brief This function checks condition and prepares to
1835 * send sleep confirm command to firmware if ok.
1837 * @param priv A pointer to struct lbs_private structure
1838 * @param psmode Power Saving mode
1841 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1843 unsigned long flags =0;
1846 lbs_deb_enter(LBS_DEB_HOST);
1848 if (priv->dnld_sent) {
1850 lbs_deb_host("dnld_sent was set\n");
1853 spin_lock_irqsave(&priv->driver_lock, flags);
1854 /* In-progress command? */
1855 if (priv->cur_cmd) {
1857 lbs_deb_host("cur_cmd was set\n");
1860 /* Pending events or command responses? */
1861 if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
1863 lbs_deb_host("pending events or command responses\n");
1865 spin_unlock_irqrestore(&priv->driver_lock, flags);
1868 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1869 lbs_send_confirmsleep(priv);
1871 lbs_deb_host("sleep confirm has been delayed\n");
1874 lbs_deb_leave(LBS_DEB_HOST);
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)
1883 struct cmd_ctrl_node *cmdnode;
1885 lbs_deb_enter(LBS_DEB_HOST);
1887 if (priv->surpriseremoved) {
1888 lbs_deb_host("PREP_CMD: card removed\n");
1889 cmdnode = ERR_PTR(-ENOENT);
1893 cmdnode = lbs_get_cmd_ctrl_node(priv);
1894 if (cmdnode == NULL) {
1895 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1897 /* Wake up main thread to execute next command */
1898 wake_up_interruptible(&priv->waitq);
1899 cmdnode = ERR_PTR(-ENOBUFS);
1903 cmdnode->callback = callback;
1904 cmdnode->callback_arg = callback_arg;
1906 /* Copy the incoming command to the buffer */
1907 memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
1909 /* Set sequence number, clean result, move to buffer */
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;
1916 lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
1918 cmdnode->cmdwaitqwoken = 0;
1919 lbs_queue_cmd(priv, cmdnode);
1920 wake_up_interruptible(&priv->waitq);
1923 lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
1927 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
1928 struct cmd_header *in_cmd, int in_cmd_size)
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);
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)
1941 struct cmd_ctrl_node *cmdnode;
1942 unsigned long flags;
1945 lbs_deb_enter(LBS_DEB_HOST);
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);
1955 wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
1957 spin_lock_irqsave(&priv->driver_lock, flags);
1958 ret = cmdnode->result;
1960 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
1963 __lbs_cleanup_and_insert_cmd(priv, cmdnode);
1964 spin_unlock_irqrestore(&priv->driver_lock, flags);
1967 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1970 EXPORT_SYMBOL_GPL(__lbs_cmd);