diff options
Diffstat (limited to 'package/libertas/src/cmdresp.c')
| -rw-r--r-- | package/libertas/src/cmdresp.c | 897 |
1 files changed, 897 insertions, 0 deletions
diff --git a/package/libertas/src/cmdresp.c b/package/libertas/src/cmdresp.c new file mode 100644 index 0000000000..bf9941ecc2 --- /dev/null +++ b/package/libertas/src/cmdresp.c @@ -0,0 +1,897 @@ +/** + * This file contains the handling of command + * responses as well as events generated by firmware. + */ +#include <linux/delay.h> +#include <linux/if_arp.h> +#include <linux/netdevice.h> + +#include <net/iw_handler.h> + +#include "host.h" +#include "decl.h" +#include "defs.h" +#include "dev.h" +#include "join.h" +#include "wext.h" + +/** + * @brief This function handles disconnect event. it + * reports disconnect to upper layer, clean tx/rx packets, + * reset link state etc. + * + * @param priv A pointer to struct lbs_private structure + * @return n/a + */ +void lbs_mac_event_disconnected(struct lbs_private *priv) +{ + union iwreq_data wrqu; + + if (priv->connect_status != LBS_CONNECTED) + return; + + lbs_deb_enter(LBS_DEB_ASSOC); + + memset(wrqu.ap_addr.sa_data, 0x00, ETH_ALEN); + wrqu.ap_addr.sa_family = ARPHRD_ETHER; + + /* + * Cisco AP sends EAP failure and de-auth in less than 0.5 ms. + * It causes problem in the Supplicant + */ + + msleep_interruptible(1000); + wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); + + /* Free Tx and Rx packets */ + kfree_skb(priv->currenttxskb); + priv->currenttxskb = NULL; + + /* report disconnect to upper layer */ + netif_stop_queue(priv->dev); + netif_carrier_off(priv->dev); + + /* reset SNR/NF/RSSI values */ + memset(priv->SNR, 0x00, sizeof(priv->SNR)); + memset(priv->NF, 0x00, sizeof(priv->NF)); + memset(priv->RSSI, 0x00, sizeof(priv->RSSI)); + memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR)); + memset(priv->rawNF, 0x00, sizeof(priv->rawNF)); + priv->nextSNRNF = 0; + priv->numSNRNF = 0; + priv->connect_status = LBS_DISCONNECTED; + + /* Clear out associated SSID and BSSID since connection is + * no longer valid. + */ + memset(&priv->curbssparams.bssid, 0, ETH_ALEN); + memset(&priv->curbssparams.ssid, 0, IW_ESSID_MAX_SIZE); + priv->curbssparams.ssid_len = 0; + + if (priv->psstate != PS_STATE_FULL_POWER) { + /* make firmware to exit PS mode */ + lbs_deb_cmd("disconnected, so exit PS mode\n"); + lbs_ps_wakeup(priv, 0); + } + lbs_deb_leave(LBS_DEB_CMD); +} + +/** + * @brief This function handles MIC failure event. + * + * @param priv A pointer to struct lbs_private structure + * @para event the event id + * @return n/a + */ +static void handle_mic_failureevent(struct lbs_private *priv, u32 event) +{ + char buf[50]; + + lbs_deb_enter(LBS_DEB_CMD); + memset(buf, 0, sizeof(buf)); + + sprintf(buf, "%s", "MLME-MICHAELMICFAILURE.indication "); + + if (event == MACREG_INT_CODE_MIC_ERR_UNICAST) { + strcat(buf, "unicast "); + } else { + strcat(buf, "multicast "); + } + + lbs_send_iwevcustom_event(priv, buf); + lbs_deb_leave(LBS_DEB_CMD); +} + +static int lbs_ret_reg_access(struct lbs_private *priv, + u16 type, struct cmd_ds_command *resp) +{ + int ret = 0; + + lbs_deb_enter(LBS_DEB_CMD); + + switch (type) { + case CMD_RET(CMD_MAC_REG_ACCESS): + { + struct cmd_ds_mac_reg_access *reg = &resp->params.macreg; + + priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset); + priv->offsetvalue.value = le32_to_cpu(reg->value); + break; + } + + case CMD_RET(CMD_BBP_REG_ACCESS): + { + struct cmd_ds_bbp_reg_access *reg = &resp->params.bbpreg; + + priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset); + priv->offsetvalue.value = reg->value; + break; + } + + case CMD_RET(CMD_RF_REG_ACCESS): + { + struct cmd_ds_rf_reg_access *reg = &resp->params.rfreg; + + priv->offsetvalue.offset = (u32)le16_to_cpu(reg->offset); + priv->offsetvalue.value = reg->value; + break; + } + + default: + ret = -1; + } + + lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); + return ret; +} + +static int lbs_ret_802_11_sleep_params(struct lbs_private *priv, + struct cmd_ds_command *resp) +{ + struct cmd_ds_802_11_sleep_params *sp = &resp->params.sleep_params; + + lbs_deb_enter(LBS_DEB_CMD); + + lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, calcontrol 0x%x " + "extsleepclk 0x%x\n", le16_to_cpu(sp->error), + le16_to_cpu(sp->offset), le16_to_cpu(sp->stabletime), + sp->calcontrol, sp->externalsleepclk); + + priv->sp.sp_error = le16_to_cpu(sp->error); + priv->sp.sp_offset = le16_to_cpu(sp->offset); + priv->sp.sp_stabletime = le16_to_cpu(sp->stabletime); + priv->sp.sp_calcontrol = sp->calcontrol; + priv->sp.sp_extsleepclk = sp->externalsleepclk; + priv->sp.sp_reserved = le16_to_cpu(sp->reserved); + + lbs_deb_enter(LBS_DEB_CMD); + return 0; +} + +static int lbs_ret_802_11_stat(struct lbs_private *priv, + struct cmd_ds_command *resp) +{ + lbs_deb_enter(LBS_DEB_CMD); +/* currently priv->wlan802_11Stat is unused + + struct cmd_ds_802_11_get_stat *p11Stat = &resp->params.gstat; + + // TODO Convert it to Big endian befor copy + memcpy(&priv->wlan802_11Stat, + p11Stat, sizeof(struct cmd_ds_802_11_get_stat)); +*/ + lbs_deb_leave(LBS_DEB_CMD); + return 0; +} + +static int lbs_ret_802_11_snmp_mib(struct lbs_private *priv, + struct cmd_ds_command *resp) +{ + struct cmd_ds_802_11_snmp_mib *smib = &resp->params.smib; + u16 oid = le16_to_cpu(smib->oid); + u16 querytype = le16_to_cpu(smib->querytype); + + lbs_deb_enter(LBS_DEB_CMD); + + lbs_deb_cmd("SNMP_RESP: oid 0x%x, querytype 0x%x\n", oid, + querytype); + lbs_deb_cmd("SNMP_RESP: Buf size %d\n", le16_to_cpu(smib->bufsize)); + + if (querytype == CMD_ACT_GET) { + switch (oid) { + case FRAGTHRESH_I: + priv->fragthsd = + le16_to_cpu(*((__le16 *)(smib->value))); + lbs_deb_cmd("SNMP_RESP: frag threshold %u\n", + priv->fragthsd); + break; + case RTSTHRESH_I: + priv->rtsthsd = + le16_to_cpu(*((__le16 *)(smib->value))); + lbs_deb_cmd("SNMP_RESP: rts threshold %u\n", + priv->rtsthsd); + break; + case SHORT_RETRYLIM_I: + priv->txretrycount = + le16_to_cpu(*((__le16 *)(smib->value))); + lbs_deb_cmd("SNMP_RESP: tx retry count %u\n", + priv->rtsthsd); + break; + default: + break; + } + } + + lbs_deb_enter(LBS_DEB_CMD); + return 0; +} + +static int lbs_ret_802_11_key_material(struct lbs_private *priv, + struct cmd_ds_command *resp) +{ + struct cmd_ds_802_11_key_material *pkeymaterial = + &resp->params.keymaterial; + u16 action = le16_to_cpu(pkeymaterial->action); + + lbs_deb_enter(LBS_DEB_CMD); + + /* Copy the returned key to driver private data */ + if (action == CMD_ACT_GET) { + u8 * buf_ptr = (u8 *) &pkeymaterial->keyParamSet; + u8 * resp_end = (u8 *) (resp + le16_to_cpu(resp->size)); + + while (buf_ptr < resp_end) { + struct MrvlIEtype_keyParamSet * pkeyparamset = + (struct MrvlIEtype_keyParamSet *) buf_ptr; + struct enc_key * pkey; + u16 param_set_len = le16_to_cpu(pkeyparamset->length); + u16 key_len = le16_to_cpu(pkeyparamset->keylen); + u16 key_flags = le16_to_cpu(pkeyparamset->keyinfo); + u16 key_type = le16_to_cpu(pkeyparamset->keytypeid); + u8 * end; + + end = (u8 *) pkeyparamset + sizeof (pkeyparamset->type) + + sizeof (pkeyparamset->length) + + param_set_len; + /* Make sure we don't access past the end of the IEs */ + if (end > resp_end) + break; + + if (key_flags & KEY_INFO_WPA_UNICAST) + pkey = &priv->wpa_unicast_key; + else if (key_flags & KEY_INFO_WPA_MCAST) + pkey = &priv->wpa_mcast_key; + else + break; + + /* Copy returned key into driver */ + memset(pkey, 0, sizeof(struct enc_key)); + if (key_len > sizeof(pkey->key)) + break; + pkey->type = key_type; + pkey->flags = key_flags; + pkey->len = key_len; + memcpy(pkey->key, pkeyparamset->key, pkey->len); + + buf_ptr = end + 1; + } + } + + lbs_deb_enter(LBS_DEB_CMD); + return 0; +} + +static int lbs_ret_802_11_mac_address(struct lbs_private *priv, + struct cmd_ds_command *resp) +{ + struct cmd_ds_802_11_mac_address *macadd = &resp->params.macadd; + + lbs_deb_enter(LBS_DEB_CMD); + + memcpy(priv->current_addr, macadd->macadd, ETH_ALEN); + + lbs_deb_enter(LBS_DEB_CMD); + return 0; +} + +static int lbs_ret_802_11_rf_tx_power(struct lbs_private *priv, + struct cmd_ds_command *resp) +{ + struct cmd_ds_802_11_rf_tx_power *rtp = &resp->params.txp; + + lbs_deb_enter(LBS_DEB_CMD); + + priv->txpowerlevel = le16_to_cpu(rtp->currentlevel); + + lbs_deb_cmd("TX power currently %d\n", priv->txpowerlevel); + + lbs_deb_leave(LBS_DEB_CMD); + return 0; +} + +static int lbs_ret_802_11_rate_adapt_rateset(struct lbs_private *priv, + struct cmd_ds_command *resp) +{ + struct cmd_ds_802_11_rate_adapt_rateset *rates = &resp->params.rateset; + + lbs_deb_enter(LBS_DEB_CMD); + + if (rates->action == CMD_ACT_GET) { + priv->enablehwauto = le16_to_cpu(rates->enablehwauto); + priv->ratebitmap = le16_to_cpu(rates->bitmap); + } + + lbs_deb_leave(LBS_DEB_CMD); + return 0; +} + +static int lbs_ret_802_11_rssi(struct lbs_private *priv, + struct cmd_ds_command *resp) +{ + struct cmd_ds_802_11_rssi_rsp *rssirsp = &resp->params.rssirsp; + + lbs_deb_enter(LBS_DEB_CMD); + + /* store the non average value */ + priv->SNR[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->SNR); + priv->NF[TYPE_BEACON][TYPE_NOAVG] = le16_to_cpu(rssirsp->noisefloor); + + priv->SNR[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgSNR); + priv->NF[TYPE_BEACON][TYPE_AVG] = le16_to_cpu(rssirsp->avgnoisefloor); + + priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = + CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_NOAVG], + priv->NF[TYPE_BEACON][TYPE_NOAVG]); + + priv->RSSI[TYPE_BEACON][TYPE_AVG] = + CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_AVG] / AVG_SCALE, + priv->NF[TYPE_BEACON][TYPE_AVG] / AVG_SCALE); + + lbs_deb_cmd("RSSI: beacon %d, avg %d\n", + priv->RSSI[TYPE_BEACON][TYPE_NOAVG], + priv->RSSI[TYPE_BEACON][TYPE_AVG]); + + lbs_deb_leave(LBS_DEB_CMD); + return 0; +} + +static int lbs_ret_802_11_eeprom_access(struct lbs_private *priv, + struct cmd_ds_command *resp) +{ + struct lbs_ioctl_regrdwr *pbuf; + pbuf = (struct lbs_ioctl_regrdwr *) priv->prdeeprom; + + lbs_deb_enter_args(LBS_DEB_CMD, "len %d", + le16_to_cpu(resp->params.rdeeprom.bytecount)); + if (pbuf->NOB < le16_to_cpu(resp->params.rdeeprom.bytecount)) { + pbuf->NOB = 0; + lbs_deb_cmd("EEPROM read length too big\n"); + return -1; + } + pbuf->NOB = le16_to_cpu(resp->params.rdeeprom.bytecount); + if (pbuf->NOB > 0) { + + memcpy(&pbuf->value, (u8 *) & resp->params.rdeeprom.value, + le16_to_cpu(resp->params.rdeeprom.bytecount)); + lbs_deb_hex(LBS_DEB_CMD, "EEPROM", (char *)&pbuf->value, + le16_to_cpu(resp->params.rdeeprom.bytecount)); + } + lbs_deb_leave(LBS_DEB_CMD); + return 0; +} + +static int lbs_ret_get_log(struct lbs_private *priv, + struct cmd_ds_command *resp) +{ + struct cmd_ds_802_11_get_log *logmessage = &resp->params.glog; + + lbs_deb_enter(LBS_DEB_CMD); + + /* Stored little-endian */ + memcpy(&priv->logmsg, logmessage, sizeof(struct cmd_ds_802_11_get_log)); + + lbs_deb_leave(LBS_DEB_CMD); + return 0; +} + +static int lbs_ret_802_11_enable_rsn(struct lbs_private *priv, + struct cmd_ds_command *resp) +{ + struct cmd_ds_802_11_enable_rsn *enable_rsn = &resp->params.enbrsn; + u32 * pdata_buf = priv->cur_cmd->pdata_buf; + + lbs_deb_enter(LBS_DEB_CMD); + + if (enable_rsn->action == cpu_to_le16(CMD_ACT_GET)) { + if (pdata_buf) + *pdata_buf = (u32) le16_to_cpu(enable_rsn->enable); + } + + lbs_deb_leave(LBS_DEB_CMD); + return 0; +} + +static int lbs_ret_802_11_bcn_ctrl(struct lbs_private * priv, + struct cmd_ds_command *resp) +{ + struct cmd_ds_802_11_beacon_control *bcn_ctrl = + &resp->params.bcn_ctrl; + + lbs_deb_enter(LBS_DEB_CMD); + + if (bcn_ctrl->action == CMD_ACT_GET) { + priv->beacon_enable = (u8) le16_to_cpu(bcn_ctrl->beacon_enable); + priv->beacon_period = le16_to_cpu(bcn_ctrl->beacon_period); + } + + lbs_deb_enter(LBS_DEB_CMD); + return 0; +} + +static int lbs_ret_802_11_subscribe_event(struct lbs_private *priv, + struct cmd_ds_command *resp) +{ + struct cmd_ds_802_11_subscribe_event *cmd_event = + &resp->params.subscribe_event; + struct cmd_ds_802_11_subscribe_event *dst_event = + priv->cur_cmd->pdata_buf; + + lbs_deb_enter(LBS_DEB_CMD); + + if (dst_event->action == cpu_to_le16(CMD_ACT_GET)) { + dst_event->events = cmd_event->events; + memcpy(dst_event->tlv, cmd_event->tlv, sizeof(dst_event->tlv)); + } + + lbs_deb_leave(LBS_DEB_CMD); + return 0; +} + +static inline int handle_cmd_response(struct lbs_private *priv, + unsigned long dummy, + struct cmd_header *cmd_response) +{ + struct cmd_ds_command *resp = (struct cmd_ds_command *) cmd_response; + int ret = 0; + unsigned long flags; + uint16_t respcmd = le16_to_cpu(resp->command); + + lbs_deb_enter(LBS_DEB_HOST); + + switch (respcmd) { + case CMD_RET(CMD_MAC_REG_ACCESS): + case CMD_RET(CMD_BBP_REG_ACCESS): + case CMD_RET(CMD_RF_REG_ACCESS): + ret = lbs_ret_reg_access(priv, respcmd, resp); + break; + + case CMD_RET(CMD_802_11_SCAN): + ret = lbs_ret_80211_scan(priv, resp); + break; + + case CMD_RET(CMD_802_11_GET_LOG): + ret = lbs_ret_get_log(priv, resp); + break; + + case CMD_RET_802_11_ASSOCIATE: + case CMD_RET(CMD_802_11_ASSOCIATE): + case CMD_RET(CMD_802_11_REASSOCIATE): + ret = lbs_ret_80211_associate(priv, resp); + break; + + case CMD_RET(CMD_802_11_DISASSOCIATE): + case CMD_RET(CMD_802_11_DEAUTHENTICATE): + ret = lbs_ret_80211_disassociate(priv, resp); + break; + + case CMD_RET(CMD_802_11_AD_HOC_START): + case CMD_RET(CMD_802_11_AD_HOC_JOIN): + ret = lbs_ret_80211_ad_hoc_start(priv, resp); + break; + + case CMD_RET(CMD_802_11_GET_STAT): + ret = lbs_ret_802_11_stat(priv, resp); + break; + + case CMD_RET(CMD_802_11_SNMP_MIB): + ret = lbs_ret_802_11_snmp_mib(priv, resp); + break; + + case CMD_RET(CMD_802_11_RF_TX_POWER): + ret = lbs_ret_802_11_rf_tx_power(priv, resp); + break; + + case CMD_RET(CMD_802_11_SET_AFC): + case CMD_RET(CMD_802_11_GET_AFC): + spin_lock_irqsave(&priv->driver_lock, flags); + memmove(priv->cur_cmd->pdata_buf, &resp->params.afc, + sizeof(struct cmd_ds_802_11_afc)); + spin_unlock_irqrestore(&priv->driver_lock, flags); + + break; + + case CMD_RET(CMD_MAC_MULTICAST_ADR): + case CMD_RET(CMD_MAC_CONTROL): + case CMD_RET(CMD_802_11_SET_WEP): + case CMD_RET(CMD_802_11_RESET): + case CMD_RET(CMD_802_11_AUTHENTICATE): + case CMD_RET(CMD_802_11_RADIO_CONTROL): + case CMD_RET(CMD_802_11_BEACON_STOP): + break; + + case CMD_RET(CMD_802_11_ENABLE_RSN): + ret = lbs_ret_802_11_enable_rsn(priv, resp); + break; + + case CMD_RET(CMD_802_11_RATE_ADAPT_RATESET): + ret = lbs_ret_802_11_rate_adapt_rateset(priv, resp); + break; + + case CMD_RET(CMD_802_11_RSSI): + ret = lbs_ret_802_11_rssi(priv, resp); + break; + + case CMD_RET(CMD_802_11_MAC_ADDRESS): + ret = lbs_ret_802_11_mac_address(priv, resp); + break; + + case CMD_RET(CMD_802_11_AD_HOC_STOP): + ret = lbs_ret_80211_ad_hoc_stop(priv, resp); + break; + + case CMD_RET(CMD_802_11_KEY_MATERIAL): + ret = lbs_ret_802_11_key_material(priv, resp); + break; + + case CMD_RET(CMD_802_11_EEPROM_ACCESS): + ret = lbs_ret_802_11_eeprom_access(priv, resp); + break; + + case CMD_RET(CMD_802_11D_DOMAIN_INFO): + ret = lbs_ret_802_11d_domain_info(priv, resp); + break; + + case CMD_RET(CMD_802_11_SLEEP_PARAMS): + ret = lbs_ret_802_11_sleep_params(priv, resp); + break; + case CMD_RET(CMD_802_11_INACTIVITY_TIMEOUT): + spin_lock_irqsave(&priv->driver_lock, flags); + *((u16 *) priv->cur_cmd->pdata_buf) = + le16_to_cpu(resp->params.inactivity_timeout.timeout); + spin_unlock_irqrestore(&priv->driver_lock, flags); + break; + + case CMD_RET(CMD_802_11_TPC_CFG): + spin_lock_irqsave(&priv->driver_lock, flags); + memmove(priv->cur_cmd->pdata_buf, &resp->params.tpccfg, + sizeof(struct cmd_ds_802_11_tpc_cfg)); + spin_unlock_irqrestore(&priv->driver_lock, flags); + break; + case CMD_RET(CMD_802_11_LED_GPIO_CTRL): + spin_lock_irqsave(&priv->driver_lock, flags); + memmove(priv->cur_cmd->pdata_buf, &resp->params.ledgpio, + sizeof(struct cmd_ds_802_11_led_ctrl)); + spin_unlock_irqrestore(&priv->driver_lock, flags); + break; + case CMD_RET(CMD_802_11_SUBSCRIBE_EVENT): + ret = lbs_ret_802_11_subscribe_event(priv, resp); + break; + + case CMD_RET(CMD_802_11_PWR_CFG): + spin_lock_irqsave(&priv->driver_lock, flags); + memmove(priv->cur_cmd->pdata_buf, &resp->params.pwrcfg, + sizeof(struct cmd_ds_802_11_pwr_cfg)); + spin_unlock_irqrestore(&priv->driver_lock, flags); + + break; + + case CMD_RET(CMD_GET_TSF): + spin_lock_irqsave(&priv->driver_lock, flags); + memcpy(priv->cur_cmd->pdata_buf, + &resp->params.gettsf.tsfvalue, sizeof(u64)); + spin_unlock_irqrestore(&priv->driver_lock, flags); + break; + case CMD_RET(CMD_BT_ACCESS): + spin_lock_irqsave(&priv->driver_lock, flags); + if (priv->cur_cmd->pdata_buf) + memcpy(priv->cur_cmd->pdata_buf, + &resp->params.bt.addr1, 2 * ETH_ALEN); + spin_unlock_irqrestore(&priv->driver_lock, flags); + break; + case CMD_RET(CMD_FWT_ACCESS): + spin_lock_irqsave(&priv->driver_lock, flags); + if (priv->cur_cmd->pdata_buf) + memcpy(priv->cur_cmd->pdata_buf, &resp->params.fwt, + sizeof(resp->params.fwt)); + spin_unlock_irqrestore(&priv->driver_lock, flags); + break; + case CMD_RET(CMD_802_11_BEACON_CTRL): + ret = lbs_ret_802_11_bcn_ctrl(priv, resp); + break; + + default: + lbs_deb_host("CMD_RESP: unknown cmd response 0x%04x\n", + resp->command); + break; + } + lbs_deb_leave(LBS_DEB_HOST); + return ret; +} + +int lbs_process_rx_command(struct lbs_private *priv) +{ + u16 respcmd; + struct cmd_header *resp; + int ret = 0; + ulong flags; + u16 result; + + lbs_deb_enter(LBS_DEB_HOST); + + /* Now we got response from FW, cancel the command timer */ + del_timer(&priv->command_timer); + + mutex_lock(&priv->lock); + spin_lock_irqsave(&priv->driver_lock, flags); + + if (!priv->cur_cmd) { + lbs_deb_host("CMD_RESP: cur_cmd is NULL\n"); + ret = -1; + spin_unlock_irqrestore(&priv->driver_lock, flags); + goto done; + } + resp = priv->cur_cmd->cmdbuf; + + respcmd = le16_to_cpu(resp->command); + result = le16_to_cpu(resp->result); + + lbs_deb_host("CMD_RESP: response 0x%04x, size %d, jiffies %lu\n", + respcmd, priv->upld_len, jiffies); + lbs_deb_hex(LBS_DEB_HOST, "CMD_RESP", (void *) resp, priv->upld_len); + + if (!(respcmd & 0x8000)) { + lbs_deb_host("invalid response!\n"); + priv->cur_cmd_retcode = -1; + __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd); + priv->cur_cmd = NULL; + spin_unlock_irqrestore(&priv->driver_lock, flags); + ret = -1; + goto done; + } + + /* Store the response code to cur_cmd_retcode. */ + priv->cur_cmd_retcode = result; + + if (respcmd == CMD_RET(CMD_802_11_PS_MODE)) { + struct cmd_ds_802_11_ps_mode *psmode = (void *) resp; + u16 action = le16_to_cpu(psmode->action); + + lbs_deb_host( + "CMD_RESP: PS_MODE cmd reply result 0x%x, action 0x%x\n", + result, action); + + if (result) { + lbs_deb_host("CMD_RESP: PS command failed with 0x%x\n", + result); + /* + * We should not re-try enter-ps command in + * ad-hoc mode. It takes place in + * lbs_execute_next_command(). + */ + if (priv->mode == IW_MODE_ADHOC && + action == CMD_SUBCMD_ENTER_PS) + priv->psmode = LBS802_11POWERMODECAM; + } else if (action == CMD_SUBCMD_ENTER_PS) { + priv->needtowakeup = 0; + priv->psstate = PS_STATE_AWAKE; + + lbs_deb_host("CMD_RESP: ENTER_PS command response\n"); + if (priv->connect_status != LBS_CONNECTED) { + /* + * When Deauth Event received before Enter_PS command + * response, We need to wake up the firmware. + */ + lbs_deb_host( + "disconnected, invoking lbs_ps_wakeup\n"); + + spin_unlock_irqrestore(&priv->driver_lock, flags); + mutex_unlock(&priv->lock); + lbs_ps_wakeup(priv, 0); + mutex_lock(&priv->lock); + spin_lock_irqsave(&priv->driver_lock, flags); + } + } else if (action == CMD_SUBCMD_EXIT_PS) { + priv->needtowakeup = 0; + priv->psstate = PS_STATE_FULL_POWER; + lbs_deb_host("CMD_RESP: EXIT_PS command response\n"); + } else { + lbs_deb_host("CMD_RESP: PS action 0x%X\n", action); + } + + __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd); + priv->cur_cmd = NULL; + spin_unlock_irqrestore(&priv->driver_lock, flags); + + ret = 0; + goto done; + } + + /* If the command is not successful, cleanup and return failure */ + if ((result != 0 || !(respcmd & 0x8000))) { + lbs_deb_host("CMD_RESP: error 0x%04x in command reply 0x%04x\n", + result, respcmd); + /* + * Handling errors here + */ + switch (respcmd) { + case CMD_RET(CMD_GET_HW_SPEC): + case CMD_RET(CMD_802_11_RESET): + lbs_deb_host("CMD_RESP: reset failed\n"); + break; + + } + + __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd); + priv->cur_cmd = NULL; + spin_unlock_irqrestore(&priv->driver_lock, flags); + + ret = -1; + goto done; + } + + spin_unlock_irqrestore(&priv->driver_lock, flags); + + if (priv->cur_cmd && priv->cur_cmd->callback) { + ret = priv->cur_cmd->callback(priv, priv->cur_cmd->callback_arg, + resp); + } else + ret = handle_cmd_response(priv, 0, resp); + + spin_lock_irqsave(&priv->driver_lock, flags); + + if (priv->cur_cmd) { + /* Clean up and Put current command back to cmdfreeq */ + __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd); + priv->cur_cmd = NULL; + } + spin_unlock_irqrestore(&priv->driver_lock, flags); + +done: + mutex_unlock(&priv->lock); + lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret); + return ret; +} + +int lbs_process_event(struct lbs_private *priv) +{ + int ret = 0; + u32 eventcause; + + lbs_deb_enter(LBS_DEB_CMD); + + spin_lock_irq(&priv->driver_lock); + eventcause = priv->eventcause >> SBI_EVENT_CAUSE_SHIFT; + spin_unlock_irq(&priv->driver_lock); + + lbs_deb_cmd("event cause %d\n", eventcause); + + switch (eventcause) { + case MACREG_INT_CODE_LINK_SENSED: + lbs_deb_cmd("EVENT: MACREG_INT_CODE_LINK_SENSED\n"); + break; + + case MACREG_INT_CODE_DEAUTHENTICATED: + lbs_deb_cmd("EVENT: deauthenticated\n"); + lbs_mac_event_disconnected(priv); + break; + + case MACREG_INT_CODE_DISASSOCIATED: + lbs_deb_cmd("EVENT: disassociated\n"); + lbs_mac_event_disconnected(priv); + break; + + case MACREG_INT_CODE_LINK_LOST_NO_SCAN: + lbs_deb_cmd("EVENT: link lost\n"); + lbs_mac_event_disconnected(priv); + break; + + case MACREG_INT_CODE_PS_SLEEP: + lbs_deb_cmd("EVENT: sleep\n"); + + /* handle unexpected PS SLEEP event */ + if (priv->psstate == PS_STATE_FULL_POWER) { + lbs_deb_cmd( + "EVENT: in FULL POWER mode, ignoreing PS_SLEEP\n"); + break; + } + priv->psstate = PS_STATE_PRE_SLEEP; + + lbs_ps_confirm_sleep(priv, (u16) priv->psmode); + + break; + + case MACREG_INT_CODE_PS_AWAKE: + lbs_deb_cmd("EVENT: awake\n"); + + /* handle unexpected PS AWAKE event */ + if (priv->psstate == PS_STATE_FULL_POWER) { + lbs_deb_cmd( + "EVENT: In FULL POWER mode - ignore PS AWAKE\n"); + break; + } + + priv->psstate = PS_STATE_AWAKE; + + if (priv->needtowakeup) { + /* + * wait for the command processing to finish + * before resuming sending + * priv->needtowakeup will be set to FALSE + * in lbs_ps_wakeup() + */ + lbs_deb_cmd("waking up ...\n"); + lbs_ps_wakeup(priv, 0); + } + break; + + case MACREG_INT_CODE_MIC_ERR_UNICAST: + lbs_deb_cmd("EVENT: UNICAST MIC ERROR\n"); + handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_UNICAST); + break; + + case MACREG_INT_CODE_MIC_ERR_MULTICAST: + lbs_deb_cmd("EVENT: MULTICAST MIC ERROR\n"); + handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_MULTICAST); + break; + case MACREG_INT_CODE_MIB_CHANGED: + case MACREG_INT_CODE_INIT_DONE: + break; + + case MACREG_INT_CODE_ADHOC_BCN_LOST: + lbs_deb_cmd("EVENT: ADHOC beacon lost\n"); + break; + + case MACREG_INT_CODE_RSSI_LOW: + lbs_pr_alert("EVENT: rssi low\n"); + break; + case MACREG_INT_CODE_SNR_LOW: + lbs_pr_alert("EVENT: snr low\n"); + break; + case MACREG_INT_CODE_MAX_FAIL: + lbs_pr_alert("EVENT: max fail\n"); + break; + case MACREG_INT_CODE_RSSI_HIGH: + lbs_pr_alert("EVENT: rssi high\n"); + break; + case MACREG_INT_CODE_SNR_HIGH: + lbs_pr_alert("EVENT: snr high\n"); + break; + + case MACREG_INT_CODE_MESH_AUTO_STARTED: + /* Ignore spurious autostart events if autostart is disabled */ + if (!priv->mesh_autostart_enabled) { + lbs_pr_info("EVENT: MESH_AUTO_STARTED (ignoring)\n"); + break; + } + lbs_pr_info("EVENT: MESH_AUTO_STARTED\n"); + priv->mesh_connect_status = LBS_CONNECTED; + if (priv->mesh_open == 1) { + netif_wake_queue(priv->mesh_dev); + netif_carrier_on(priv->mesh_dev); + } + priv->mode = IW_MODE_ADHOC; + schedule_work(&priv->sync_channel); + break; + + default: + lbs_pr_alert("EVENT: unknown event id %d\n", eventcause); + break; + } + + spin_lock_irq(&priv->driver_lock); + priv->eventcause = 0; + spin_unlock_irq(&priv->driver_lock); + + lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); + return ret; +} |