/*
* The main process.
*
* This function is the main procedure of the driver and handles various driver
* operations. It runs in a loop and provides the core functionalities.
*
* The main responsibilities of this function are -
* - Ensure concurrency control
* - Handle pending interrupts and call interrupt handlers
* - Wake up the card if required
* - Handle command responses and call response handlers
* - Handle events and call event handlers
* - Execute pending commands
* - Transmit pending data packets
*/
int mwifiex_main_process(struct mwifiex_adapter *adapter)
{
int ret = 0;
unsigned long flags;
struct sk_buff *skb;
spin_lock_irqsave(&adapter->main_proc_lock, flags);
/* Check if already processing */
if (adapter->mwifiex_processing) {
spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
goto exit_main_proc;
} else {
adapter->mwifiex_processing = true;
spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
}
process_start:
do {
if ((adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) ||
(adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY))
break;
/* Handle pending interrupt if any */
if (adapter->int_status) {
if (adapter->hs_activated)
mwifiex_process_hs_config(adapter);
if (adapter->if_ops.process_int_status)
adapter->if_ops.process_int_status(adapter);
}
/* Need to wake up the card ? */
if ((adapter->ps_state == PS_STATE_SLEEP) &&
(adapter->pm_wakeup_card_req &&
!adapter->pm_wakeup_fw_try) &&
(is_command_pending(adapter) ||
!mwifiex_wmm_lists_empty(adapter))) {
adapter->pm_wakeup_fw_try = true;
adapter->if_ops.wakeup(adapter);
continue;
}
if (IS_CARD_RX_RCVD(adapter)) {
adapter->pm_wakeup_fw_try = false;
if (adapter->ps_state == PS_STATE_SLEEP)
adapter->ps_state = PS_STATE_AWAKE;
} else {
/* We have tried to wakeup the card already */
if (adapter->pm_wakeup_fw_try)
break;
if (adapter->ps_state != PS_STATE_AWAKE ||
adapter->tx_lock_flag)
break;
if ((adapter->scan_processing &&
!adapter->scan_delay_cnt) || adapter->data_sent ||
mwifiex_wmm_lists_empty(adapter)) {
if (adapter->cmd_sent || adapter->curr_cmd ||
(!is_command_pending(adapter)))
break;
}
}
/* Check Rx data for USB */
if (adapter->iface_type == MWIFIEX_USB)
while ((skb = skb_dequeue(&adapter->usb_rx_data_q)))
mwifiex_handle_rx_packet(adapter, skb);
/* Check for Cmd Resp */
if (adapter->cmd_resp_received) {
adapter->cmd_resp_received = false;
mwifiex_process_cmdresp(adapter);
/* call mwifiex back when init_fw is done */
if (adapter->hw_status == MWIFIEX_HW_STATUS_INIT_DONE) {
adapter->hw_status = MWIFIEX_HW_STATUS_READY;
mwifiex_init_fw_complete(adapter);
}
}
/* Check for event */
if (adapter->event_received) {
adapter->event_received = false;
mwifiex_process_event(adapter);
}
/* Check if we need to confirm Sleep Request
received previously */
if (adapter->ps_state == PS_STATE_PRE_SLEEP) {
if (!adapter->cmd_sent && !adapter->curr_cmd)
mwifiex_check_ps_cond(adapter);
}
/* * The ps_state may have been changed during processing of
* Sleep Request event.
*/
if ((adapter->ps_state == PS_STATE_SLEEP) ||
(adapter->ps_state == PS_STATE_PRE_SLEEP) ||
(adapter->ps_state == PS_STATE_SLEEP_CFM) ||
adapter->tx_lock_flag)
continue;
if (!adapter->cmd_sent && !adapter->curr_cmd) {
if (mwifiex_exec_next_cmd(adapter) == -1) {
ret = -1;
break;
}
}
if ((!adapter->scan_processing || adapter->scan_delay_cnt) &&
!adapter->data_sent && !mwifiex_wmm_lists_empty(adapter)) {
mwifiex_wmm_process_tx(adapter);
if (adapter->hs_activated) {
adapter->is_hs_configured = false;
mwifiex_hs_activated_event
(mwifiex_get_priv
(adapter, MWIFIEX_BSS_ROLE_ANY),
false);
}
}
if (adapter->delay_null_pkt && !adapter->cmd_sent &&
!adapter->curr_cmd && !is_command_pending(adapter) &&
mwifiex_wmm_lists_empty(adapter)) {
if (!mwifiex_send_null_packet
(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) {
adapter->delay_null_pkt = false;
adapter->ps_state = PS_STATE_SLEEP;
}
break;
}
} while (true);
if ((adapter->int_status) || IS_CARD_RX_RCVD(adapter))
goto process_start;
spin_lock_irqsave(&adapter->main_proc_lock, flags);
adapter->mwifiex_processing = false;
spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
exit_main_proc:
if (adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING)
mwifiex_shutdown_drv(adapter);
return ret;
}
/*
* This function handles events generated by firmware.
*
* This is a generic function and handles all events.
*
* Event specific routines are called by this function based
* upon the generated event cause.
*
* For the following events, the function just forwards them to upper
* layers, optionally recording the change -
* - EVENT_LINK_SENSED
* - EVENT_MIC_ERR_UNICAST
* - EVENT_MIC_ERR_MULTICAST
* - EVENT_PORT_RELEASE
* - EVENT_RSSI_LOW
* - EVENT_SNR_LOW
* - EVENT_MAX_FAIL
* - EVENT_RSSI_HIGH
* - EVENT_SNR_HIGH
* - EVENT_DATA_RSSI_LOW
* - EVENT_DATA_SNR_LOW
* - EVENT_DATA_RSSI_HIGH
* - EVENT_DATA_SNR_HIGH
* - EVENT_LINK_QUALITY
* - EVENT_PRE_BEACON_LOST
* - EVENT_IBSS_COALESCED
* - EVENT_IBSS_STA_CONNECT
* - EVENT_IBSS_STA_DISCONNECT
* - EVENT_WEP_ICV_ERR
* - EVENT_BW_CHANGE
* - EVENT_HOSTWAKE_STAIE
*
* For the following events, no action is taken -
* - EVENT_MIB_CHANGED
* - EVENT_INIT_DONE
* - EVENT_DUMMY_HOST_WAKEUP_SIGNAL
*
* Rest of the supported events requires driver handling -
* - EVENT_DEAUTHENTICATED
* - EVENT_DISASSOCIATED
* - EVENT_LINK_LOST
* - EVENT_PS_SLEEP
* - EVENT_PS_AWAKE
* - EVENT_DEEP_SLEEP_AWAKE
* - EVENT_HS_ACT_REQ
* - EVENT_ADHOC_BCN_LOST
* - EVENT_BG_SCAN_REPORT
* - EVENT_WMM_STATUS_CHANGE
* - EVENT_ADDBA
* - EVENT_DELBA
* - EVENT_BA_STREAM_TIEMOUT
* - EVENT_AMSDU_AGGR_CTRL
* - EVENT_FW_DUMP_INFO
*/
int mwifiex_process_sta_event(struct mwifiex_private *priv)
{
struct mwifiex_adapter *adapter = priv->adapter;
int ret = 0, i;
u32 eventcause = adapter->event_cause;
u16 ctrl, reason_code;
u8 ibss_sta_addr[ETH_ALEN];
struct mwifiex_sta_node *sta_ptr;
switch (eventcause) {
case EVENT_DUMMY_HOST_WAKEUP_SIGNAL:
mwifiex_dbg(adapter, ERROR,
"invalid EVENT: DUMMY_HOST_WAKEUP_SIGNAL, ignore it\n");
break;
case EVENT_LINK_SENSED:
mwifiex_dbg(adapter, EVENT, "event: LINK_SENSED\n");
if (!netif_carrier_ok(priv->netdev))
netif_carrier_on(priv->netdev);
mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
break;
case EVENT_DEAUTHENTICATED:
mwifiex_dbg(adapter, EVENT, "event: Deauthenticated\n");
if (priv->wps.session_enable) {
mwifiex_dbg(adapter, INFO,
"info: receive deauth event in wps session\n");
break;
}
adapter->dbg.num_event_deauth++;
if (priv->media_connected) {
reason_code =
get_unaligned_le16(adapter->event_body);
mwifiex_reset_connect_state(priv, reason_code, true);
}
break;
case EVENT_DISASSOCIATED:
mwifiex_dbg(adapter, EVENT, "event: Disassociated\n");
if (priv->wps.session_enable) {
mwifiex_dbg(adapter, INFO,
"info: receive disassoc event in wps session\n");
break;
}
adapter->dbg.num_event_disassoc++;
if (priv->media_connected) {
reason_code =
get_unaligned_le16(adapter->event_body);
mwifiex_reset_connect_state(priv, reason_code, true);
}
break;
case EVENT_LINK_LOST:
mwifiex_dbg(adapter, EVENT, "event: Link lost\n");
adapter->dbg.num_event_link_lost++;
if (priv->media_connected) {
reason_code =
get_unaligned_le16(adapter->event_body);
mwifiex_reset_connect_state(priv, reason_code, true);
}
break;
case EVENT_PS_SLEEP:
mwifiex_dbg(adapter, EVENT, "info: EVENT: SLEEP\n");
adapter->ps_state = PS_STATE_PRE_SLEEP;
mwifiex_check_ps_cond(adapter);
break;
case EVENT_PS_AWAKE:
mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n");
if (!adapter->pps_uapsd_mode &&
(priv->port_open ||
(priv->bss_mode == NL80211_IFTYPE_ADHOC)) &&
priv->media_connected && adapter->sleep_period.period) {
adapter->pps_uapsd_mode = true;
mwifiex_dbg(adapter, EVENT,
"event: PPS/UAPSD mode activated\n");
}
adapter->tx_lock_flag = false;
if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
if (mwifiex_check_last_packet_indication(priv)) {
if (adapter->data_sent ||
(adapter->if_ops.is_port_ready &&
!adapter->if_ops.is_port_ready(priv))) {
adapter->ps_state = PS_STATE_AWAKE;
adapter->pm_wakeup_card_req = false;
adapter->pm_wakeup_fw_try = false;
del_timer(&adapter->wakeup_timer);
break;
}
if (!mwifiex_send_null_packet
(priv,
MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
adapter->ps_state =
PS_STATE_SLEEP;
return 0;
}
}
adapter->ps_state = PS_STATE_AWAKE;
adapter->pm_wakeup_card_req = false;
adapter->pm_wakeup_fw_try = false;
del_timer(&adapter->wakeup_timer);
break;
case EVENT_DEEP_SLEEP_AWAKE:
adapter->if_ops.wakeup_complete(adapter);
mwifiex_dbg(adapter, EVENT, "event: DS_AWAKE\n");
if (adapter->is_deep_sleep)
adapter->is_deep_sleep = false;
break;
case EVENT_HS_ACT_REQ:
mwifiex_dbg(adapter, EVENT, "event: HS_ACT_REQ\n");
ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_HS_CFG_ENH,
0, 0, NULL, false);
break;
case EVENT_MIC_ERR_UNICAST:
mwifiex_dbg(adapter, EVENT, "event: UNICAST MIC ERROR\n");
cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
NL80211_KEYTYPE_PAIRWISE,
-1, NULL, GFP_KERNEL);
break;
case EVENT_MIC_ERR_MULTICAST:
mwifiex_dbg(adapter, EVENT, "event: MULTICAST MIC ERROR\n");
cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
NL80211_KEYTYPE_GROUP,
-1, NULL, GFP_KERNEL);
break;
case EVENT_MIB_CHANGED:
case EVENT_INIT_DONE:
break;
case EVENT_ADHOC_BCN_LOST:
mwifiex_dbg(adapter, EVENT, "event: ADHOC_BCN_LOST\n");
priv->adhoc_is_link_sensed = false;
mwifiex_clean_txrx(priv);
mwifiex_stop_net_dev_queue(priv->netdev, adapter);
if (netif_carrier_ok(priv->netdev))
netif_carrier_off(priv->netdev);
break;
case EVENT_BG_SCAN_REPORT:
mwifiex_dbg(adapter, EVENT, "event: BGS_REPORT\n");
ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_QUERY,
HostCmd_ACT_GEN_GET, 0, NULL, false);
break;
case EVENT_BG_SCAN_STOPPED:
dev_dbg(adapter->dev, "event: BGS_STOPPED\n");
cfg80211_sched_scan_stopped(priv->wdev.wiphy, 0);
if (priv->sched_scanning)
priv->sched_scanning = false;
break;
case EVENT_PORT_RELEASE:
mwifiex_dbg(adapter, EVENT, "event: PORT RELEASE\n");
priv->port_open = true;
break;
case EVENT_EXT_SCAN_REPORT:
mwifiex_dbg(adapter, EVENT, "event: EXT_SCAN Report\n");
/* We intend to skip this event during suspend, but handle
* it in interface disabled case
*/
if (adapter->ext_scan && (!priv->scan_aborting ||
!netif_running(priv->netdev)))
ret = mwifiex_handle_event_ext_scan_report(priv,
adapter->event_skb->data);
break;
case EVENT_WMM_STATUS_CHANGE:
mwifiex_dbg(adapter, EVENT, "event: WMM status changed\n");
ret = mwifiex_send_cmd(priv, HostCmd_CMD_WMM_GET_STATUS,
0, 0, NULL, false);
break;
case EVENT_RSSI_LOW:
cfg80211_cqm_rssi_notify(priv->netdev,
NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
0, GFP_KERNEL);
mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
HostCmd_ACT_GEN_GET, 0, NULL, false);
priv->subsc_evt_rssi_state = RSSI_LOW_RECVD;
mwifiex_dbg(adapter, EVENT, "event: Beacon RSSI_LOW\n");
break;
case EVENT_SNR_LOW:
mwifiex_dbg(adapter, EVENT, "event: Beacon SNR_LOW\n");
break;
case EVENT_MAX_FAIL:
mwifiex_dbg(adapter, EVENT, "event: MAX_FAIL\n");
break;
case EVENT_RSSI_HIGH:
cfg80211_cqm_rssi_notify(priv->netdev,
NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
0, GFP_KERNEL);
mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
HostCmd_ACT_GEN_GET, 0, NULL, false);
priv->subsc_evt_rssi_state = RSSI_HIGH_RECVD;
mwifiex_dbg(adapter, EVENT, "event: Beacon RSSI_HIGH\n");
break;
case EVENT_SNR_HIGH:
mwifiex_dbg(adapter, EVENT, "event: Beacon SNR_HIGH\n");
break;
case EVENT_DATA_RSSI_LOW:
mwifiex_dbg(adapter, EVENT, "event: Data RSSI_LOW\n");
break;
case EVENT_DATA_SNR_LOW:
mwifiex_dbg(adapter, EVENT, "event: Data SNR_LOW\n");
break;
case EVENT_DATA_RSSI_HIGH:
mwifiex_dbg(adapter, EVENT, "event: Data RSSI_HIGH\n");
break;
case EVENT_DATA_SNR_HIGH:
mwifiex_dbg(adapter, EVENT, "event: Data SNR_HIGH\n");
break;
case EVENT_LINK_QUALITY:
mwifiex_dbg(adapter, EVENT, "event: Link Quality\n");
break;
case EVENT_PRE_BEACON_LOST:
mwifiex_dbg(adapter, EVENT, "event: Pre-Beacon Lost\n");
break;
case EVENT_IBSS_COALESCED:
mwifiex_dbg(adapter, EVENT, "event: IBSS_COALESCED\n");
ret = mwifiex_send_cmd(priv,
HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
HostCmd_ACT_GEN_GET, 0, NULL, false);
break;
case EVENT_IBSS_STA_CONNECT:
ether_addr_copy(ibss_sta_addr, adapter->event_body + 2);
mwifiex_dbg(adapter, EVENT, "event: IBSS_STA_CONNECT %pM\n",
ibss_sta_addr);
sta_ptr = mwifiex_add_sta_entry(priv, ibss_sta_addr);
if (sta_ptr && adapter->adhoc_11n_enabled) {
mwifiex_check_ibss_peer_capabilties(priv, sta_ptr,
adapter->event_skb);
if (sta_ptr->is_11n_enabled)
for (i = 0; i < MAX_NUM_TID; i++)
sta_ptr->ampdu_sta[i] =
priv->aggr_prio_tbl[i].ampdu_user;
else
for (i = 0; i < MAX_NUM_TID; i++)
sta_ptr->ampdu_sta[i] =
BA_STREAM_NOT_ALLOWED;
memset(sta_ptr->rx_seq, 0xff, sizeof(sta_ptr->rx_seq));
}
break;
case EVENT_IBSS_STA_DISCONNECT:
ether_addr_copy(ibss_sta_addr, adapter->event_body + 2);
mwifiex_dbg(adapter, EVENT, "event: IBSS_STA_DISCONNECT %pM\n",
ibss_sta_addr);
sta_ptr = mwifiex_get_sta_entry(priv, ibss_sta_addr);
if (sta_ptr && sta_ptr->is_11n_enabled) {
mwifiex_11n_del_rx_reorder_tbl_by_ta(priv,
ibss_sta_addr);
mwifiex_del_tx_ba_stream_tbl_by_ra(priv, ibss_sta_addr);
}
mwifiex_wmm_del_peer_ra_list(priv, ibss_sta_addr);
mwifiex_del_sta_entry(priv, ibss_sta_addr);
break;
case EVENT_ADDBA:
mwifiex_dbg(adapter, EVENT, "event: ADDBA Request\n");
mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP,
HostCmd_ACT_GEN_SET, 0,
adapter->event_body, false);
break;
case EVENT_DELBA:
mwifiex_dbg(adapter, EVENT, "event: DELBA Request\n");
mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
break;
case EVENT_BA_STREAM_TIEMOUT:
mwifiex_dbg(adapter, EVENT, "event: BA Stream timeout\n");
mwifiex_11n_ba_stream_timeout(priv,
(struct host_cmd_ds_11n_batimeout
*)
adapter->event_body);
break;
case EVENT_AMSDU_AGGR_CTRL:
ctrl = get_unaligned_le16(adapter->event_body);
mwifiex_dbg(adapter, EVENT,
"event: AMSDU_AGGR_CTRL %d\n", ctrl);
adapter->tx_buf_size =
min_t(u16, adapter->curr_tx_buf_size, ctrl);
mwifiex_dbg(adapter, EVENT, "event: tx_buf_size %d\n",
adapter->tx_buf_size);
break;
case EVENT_WEP_ICV_ERR:
mwifiex_dbg(adapter, EVENT, "event: WEP ICV error\n");
break;
case EVENT_BW_CHANGE:
mwifiex_dbg(adapter, EVENT, "event: BW Change\n");
break;
case EVENT_HOSTWAKE_STAIE:
mwifiex_dbg(adapter, EVENT,
"event: HOSTWAKE_STAIE %d\n", eventcause);
break;
case EVENT_REMAIN_ON_CHAN_EXPIRED:
mwifiex_dbg(adapter, EVENT,
"event: Remain on channel expired\n");
cfg80211_remain_on_channel_expired(&priv->wdev,
priv->roc_cfg.cookie,
&priv->roc_cfg.chan,
GFP_ATOMIC);
memset(&priv->roc_cfg, 0x00, sizeof(struct mwifiex_roc_cfg));
break;
case EVENT_CHANNEL_SWITCH_ANN:
mwifiex_dbg(adapter, EVENT, "event: Channel Switch Announcement\n");
priv->csa_expire_time =
jiffies + msecs_to_jiffies(DFS_CHAN_MOVE_TIME);
priv->csa_chan = priv->curr_bss_params.bss_descriptor.channel;
ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_DEAUTHENTICATE,
HostCmd_ACT_GEN_SET, 0,
priv->curr_bss_params.bss_descriptor.mac_address,
false);
break;
case EVENT_TDLS_GENERIC_EVENT:
ret = mwifiex_parse_tdls_event(priv, adapter->event_skb);
break;
case EVENT_TX_DATA_PAUSE:
mwifiex_dbg(adapter, EVENT, "event: TX DATA PAUSE\n");
mwifiex_process_tx_pause_event(priv, adapter->event_skb);
break;
case EVENT_MULTI_CHAN_INFO:
mwifiex_dbg(adapter, EVENT, "event: multi-chan info\n");
mwifiex_process_multi_chan_event(priv, adapter->event_skb);
break;
case EVENT_TX_STATUS_REPORT:
mwifiex_dbg(adapter, EVENT, "event: TX_STATUS Report\n");
mwifiex_parse_tx_status_event(priv, adapter->event_body);
break;
case EVENT_CHANNEL_REPORT_RDY:
mwifiex_dbg(adapter, EVENT, "event: Channel Report\n");
ret = mwifiex_11h_handle_chanrpt_ready(priv,
adapter->event_skb);
break;
case EVENT_RADAR_DETECTED:
mwifiex_dbg(adapter, EVENT, "event: Radar detected\n");
ret = mwifiex_11h_handle_radar_detected(priv,
adapter->event_skb);
break;
case EVENT_BT_COEX_WLAN_PARA_CHANGE:
dev_dbg(adapter->dev, "EVENT: BT coex wlan param update\n");
mwifiex_bt_coex_wlan_param_update_event(priv,
adapter->event_skb);
break;
case EVENT_RXBA_SYNC:
dev_dbg(adapter->dev, "EVENT: RXBA_SYNC\n");
mwifiex_11n_rxba_sync_event(priv, adapter->event_body,
adapter->event_skb->len -
sizeof(eventcause));
break;
case EVENT_FW_DUMP_INFO:
mwifiex_dbg(adapter, EVENT, "event: firmware debug info\n");
mwifiex_fw_dump_info_event(priv, adapter->event_skb);
break;
/* Debugging event; not used, but let's not print an ERROR for it. */
case EVENT_UNKNOWN_DEBUG:
mwifiex_dbg(adapter, EVENT, "event: debug\n");
break;
default:
mwifiex_dbg(adapter, ERROR, "event: unknown event id: %#x\n",
eventcause);
break;
}
return ret;
}
/*
* The main process.
*
* This function is the main procedure of the driver and handles various driver
* operations. It runs in a loop and provides the core functionalities.
*
* The main responsibilities of this function are -
* - Ensure concurrency control
* - Handle pending interrupts and call interrupt handlers
* - Wake up the card if required
* - Handle command responses and call response handlers
* - Handle events and call event handlers
* - Execute pending commands
* - Transmit pending data packets
*/
int mwifiex_main_process(struct mwifiex_adapter *adapter)
{
int ret = 0;
unsigned long flags;
spin_lock_irqsave(&adapter->main_proc_lock, flags);
/* Check if already processing */
if (adapter->mwifiex_processing) {
spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
goto exit_main_proc;
} else {
adapter->mwifiex_processing = true;
spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
}
process_start:
do {
if ((adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) ||
(adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY))
break;
/* For non-USB interfaces, If we process interrupts first, it
* would increase RX pending even further. Avoid this by
* checking if rx_pending has crossed high threshold and
* schedule rx work queue and then process interrupts.
* For USB interface, there are no interrupts. We already have
* HIGH_RX_PENDING check in usb.c
*/
if (atomic_read(&adapter->rx_pending) >= HIGH_RX_PENDING &&
adapter->iface_type != MWIFIEX_USB) {
adapter->delay_main_work = true;
if (!adapter->rx_processing)
queue_work(adapter->rx_workqueue,
&adapter->rx_work);
break;
}
/* Handle pending interrupt if any */
if (adapter->int_status) {
if (adapter->hs_activated)
mwifiex_process_hs_config(adapter);
if (adapter->if_ops.process_int_status)
adapter->if_ops.process_int_status(adapter);
}
if (adapter->rx_work_enabled && adapter->data_received)
queue_work(adapter->rx_workqueue, &adapter->rx_work);
/* Need to wake up the card ? */
if ((adapter->ps_state == PS_STATE_SLEEP) &&
(adapter->pm_wakeup_card_req &&
!adapter->pm_wakeup_fw_try) &&
(is_command_pending(adapter) ||
!mwifiex_wmm_lists_empty(adapter))) {
adapter->pm_wakeup_fw_try = true;
adapter->if_ops.wakeup(adapter);
continue;
}
if (IS_CARD_RX_RCVD(adapter)) {
adapter->data_received = false;
adapter->pm_wakeup_fw_try = false;
if (adapter->ps_state == PS_STATE_SLEEP)
adapter->ps_state = PS_STATE_AWAKE;
} else {
/* We have tried to wakeup the card already */
if (adapter->pm_wakeup_fw_try)
break;
if (adapter->ps_state != PS_STATE_AWAKE ||
adapter->tx_lock_flag)
break;
if ((!adapter->scan_chan_gap_enabled &&
adapter->scan_processing) || adapter->data_sent ||
mwifiex_wmm_lists_empty(adapter)) {
if (adapter->cmd_sent || adapter->curr_cmd ||
(!is_command_pending(adapter)))
break;
}
}
/* Check for event */
if (adapter->event_received) {
adapter->event_received = false;
mwifiex_process_event(adapter);
}
/* Check for Cmd Resp */
if (adapter->cmd_resp_received) {
adapter->cmd_resp_received = false;
mwifiex_process_cmdresp(adapter);
/* call mwifiex back when init_fw is done */
if (adapter->hw_status == MWIFIEX_HW_STATUS_INIT_DONE) {
adapter->hw_status = MWIFIEX_HW_STATUS_READY;
mwifiex_init_fw_complete(adapter);
}
}
/* Check if we need to confirm Sleep Request
received previously */
if (adapter->ps_state == PS_STATE_PRE_SLEEP) {
if (!adapter->cmd_sent && !adapter->curr_cmd)
mwifiex_check_ps_cond(adapter);
}
/* * The ps_state may have been changed during processing of
* Sleep Request event.
*/
if ((adapter->ps_state == PS_STATE_SLEEP) ||
(adapter->ps_state == PS_STATE_PRE_SLEEP) ||
(adapter->ps_state == PS_STATE_SLEEP_CFM) ||
adapter->tx_lock_flag)
continue;
if (!adapter->cmd_sent && !adapter->curr_cmd) {
if (mwifiex_exec_next_cmd(adapter) == -1) {
ret = -1;
break;
}
}
if ((adapter->scan_chan_gap_enabled ||
!adapter->scan_processing) &&
!adapter->data_sent && !mwifiex_wmm_lists_empty(adapter)) {
mwifiex_wmm_process_tx(adapter);
if (adapter->hs_activated) {
adapter->is_hs_configured = false;
mwifiex_hs_activated_event
(mwifiex_get_priv
(adapter, MWIFIEX_BSS_ROLE_ANY),
false);
}
}
if (adapter->delay_null_pkt && !adapter->cmd_sent &&
!adapter->curr_cmd && !is_command_pending(adapter) &&
mwifiex_wmm_lists_empty(adapter)) {
if (!mwifiex_send_null_packet
(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) {
adapter->delay_null_pkt = false;
adapter->ps_state = PS_STATE_SLEEP;
}
break;
}
} while (true);
spin_lock_irqsave(&adapter->main_proc_lock, flags);
if (!adapter->delay_main_work &&
(adapter->int_status || IS_CARD_RX_RCVD(adapter))) {
spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
goto process_start;
}
adapter->mwifiex_processing = false;
spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
exit_main_proc:
if (adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING)
mwifiex_shutdown_drv(adapter);
return ret;
}
/*
* This function handles events generated by firmware.
*
* This is a generic function and handles all events.
*
* Event specific routines are called by this function based
* upon the generated event cause.
*
* For the following events, the function just forwards them to upper
* layers, optionally recording the change -
* - EVENT_LINK_SENSED
* - EVENT_MIC_ERR_UNICAST
* - EVENT_MIC_ERR_MULTICAST
* - EVENT_PORT_RELEASE
* - EVENT_RSSI_LOW
* - EVENT_SNR_LOW
* - EVENT_MAX_FAIL
* - EVENT_RSSI_HIGH
* - EVENT_SNR_HIGH
* - EVENT_DATA_RSSI_LOW
* - EVENT_DATA_SNR_LOW
* - EVENT_DATA_RSSI_HIGH
* - EVENT_DATA_SNR_HIGH
* - EVENT_LINK_QUALITY
* - EVENT_PRE_BEACON_LOST
* - EVENT_IBSS_COALESCED
* - EVENT_WEP_ICV_ERR
* - EVENT_BW_CHANGE
* - EVENT_HOSTWAKE_STAIE
*
* For the following events, no action is taken -
* - EVENT_MIB_CHANGED
* - EVENT_INIT_DONE
* - EVENT_DUMMY_HOST_WAKEUP_SIGNAL
*
* Rest of the supported events requires driver handling -
* - EVENT_DEAUTHENTICATED
* - EVENT_DISASSOCIATED
* - EVENT_LINK_LOST
* - EVENT_PS_SLEEP
* - EVENT_PS_AWAKE
* - EVENT_DEEP_SLEEP_AWAKE
* - EVENT_HS_ACT_REQ
* - EVENT_ADHOC_BCN_LOST
* - EVENT_BG_SCAN_REPORT
* - EVENT_WMM_STATUS_CHANGE
* - EVENT_ADDBA
* - EVENT_DELBA
* - EVENT_BA_STREAM_TIEMOUT
* - EVENT_AMSDU_AGGR_CTRL
*/
int mwifiex_process_sta_event(struct mwifiex_private *priv)
{
struct mwifiex_adapter *adapter = priv->adapter;
int ret = 0;
u32 eventcause = adapter->event_cause;
u16 ctrl, reason_code;
switch (eventcause) {
case EVENT_DUMMY_HOST_WAKEUP_SIGNAL:
dev_err(adapter->dev,
"invalid EVENT: DUMMY_HOST_WAKEUP_SIGNAL, ignore it\n");
break;
case EVENT_LINK_SENSED:
dev_dbg(adapter->dev, "event: LINK_SENSED\n");
if (!netif_carrier_ok(priv->netdev))
netif_carrier_on(priv->netdev);
mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
break;
case EVENT_DEAUTHENTICATED:
dev_dbg(adapter->dev, "event: Deauthenticated\n");
if (priv->wps.session_enable) {
dev_dbg(adapter->dev,
"info: receive deauth event in wps session\n");
break;
}
adapter->dbg.num_event_deauth++;
if (priv->media_connected) {
reason_code =
le16_to_cpu(*(__le16 *)adapter->event_body);
mwifiex_reset_connect_state(priv, reason_code);
}
break;
case EVENT_DISASSOCIATED:
dev_dbg(adapter->dev, "event: Disassociated\n");
if (priv->wps.session_enable) {
dev_dbg(adapter->dev,
"info: receive disassoc event in wps session\n");
break;
}
adapter->dbg.num_event_disassoc++;
if (priv->media_connected) {
reason_code =
le16_to_cpu(*(__le16 *)adapter->event_body);
mwifiex_reset_connect_state(priv, reason_code);
}
break;
case EVENT_LINK_LOST:
dev_dbg(adapter->dev, "event: Link lost\n");
adapter->dbg.num_event_link_lost++;
if (priv->media_connected) {
reason_code =
le16_to_cpu(*(__le16 *)adapter->event_body);
mwifiex_reset_connect_state(priv, reason_code);
}
break;
case EVENT_PS_SLEEP:
dev_dbg(adapter->dev, "info: EVENT: SLEEP\n");
adapter->ps_state = PS_STATE_PRE_SLEEP;
mwifiex_check_ps_cond(adapter);
break;
case EVENT_PS_AWAKE:
dev_dbg(adapter->dev, "info: EVENT: AWAKE\n");
if (!adapter->pps_uapsd_mode &&
priv->media_connected && adapter->sleep_period.period) {
adapter->pps_uapsd_mode = true;
dev_dbg(adapter->dev,
"event: PPS/UAPSD mode activated\n");
}
adapter->tx_lock_flag = false;
if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
if (mwifiex_check_last_packet_indication(priv)) {
if (adapter->data_sent) {
adapter->ps_state = PS_STATE_AWAKE;
adapter->pm_wakeup_card_req = false;
adapter->pm_wakeup_fw_try = false;
break;
}
if (!mwifiex_send_null_packet
(priv,
MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
adapter->ps_state =
PS_STATE_SLEEP;
return 0;
}
}
adapter->ps_state = PS_STATE_AWAKE;
adapter->pm_wakeup_card_req = false;
adapter->pm_wakeup_fw_try = false;
break;
case EVENT_DEEP_SLEEP_AWAKE:
adapter->if_ops.wakeup_complete(adapter);
dev_dbg(adapter->dev, "event: DS_AWAKE\n");
if (adapter->is_deep_sleep)
adapter->is_deep_sleep = false;
break;
case EVENT_HS_ACT_REQ:
dev_dbg(adapter->dev, "event: HS_ACT_REQ\n");
ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_HS_CFG_ENH,
0, 0, NULL, false);
break;
case EVENT_MIC_ERR_UNICAST:
dev_dbg(adapter->dev, "event: UNICAST MIC ERROR\n");
cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
NL80211_KEYTYPE_PAIRWISE,
-1, NULL, GFP_KERNEL);
break;
case EVENT_MIC_ERR_MULTICAST:
dev_dbg(adapter->dev, "event: MULTICAST MIC ERROR\n");
cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
NL80211_KEYTYPE_GROUP,
-1, NULL, GFP_KERNEL);
break;
case EVENT_MIB_CHANGED:
case EVENT_INIT_DONE:
break;
case EVENT_ADHOC_BCN_LOST:
dev_dbg(adapter->dev, "event: ADHOC_BCN_LOST\n");
priv->adhoc_is_link_sensed = false;
mwifiex_clean_txrx(priv);
mwifiex_stop_net_dev_queue(priv->netdev, adapter);
if (netif_carrier_ok(priv->netdev))
netif_carrier_off(priv->netdev);
break;
case EVENT_BG_SCAN_REPORT:
dev_dbg(adapter->dev, "event: BGS_REPORT\n");
ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_QUERY,
HostCmd_ACT_GEN_GET, 0, NULL, false);
break;
case EVENT_PORT_RELEASE:
dev_dbg(adapter->dev, "event: PORT RELEASE\n");
break;
case EVENT_EXT_SCAN_REPORT:
dev_dbg(adapter->dev, "event: EXT_SCAN Report\n");
if (adapter->ext_scan)
ret = mwifiex_handle_event_ext_scan_report(priv,
adapter->event_skb->data);
break;
case EVENT_WMM_STATUS_CHANGE:
dev_dbg(adapter->dev, "event: WMM status changed\n");
ret = mwifiex_send_cmd(priv, HostCmd_CMD_WMM_GET_STATUS,
0, 0, NULL, false);
break;
case EVENT_RSSI_LOW:
cfg80211_cqm_rssi_notify(priv->netdev,
NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
GFP_KERNEL);
mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
HostCmd_ACT_GEN_GET, 0, NULL, false);
priv->subsc_evt_rssi_state = RSSI_LOW_RECVD;
dev_dbg(adapter->dev, "event: Beacon RSSI_LOW\n");
break;
case EVENT_SNR_LOW:
dev_dbg(adapter->dev, "event: Beacon SNR_LOW\n");
break;
case EVENT_MAX_FAIL:
dev_dbg(adapter->dev, "event: MAX_FAIL\n");
break;
case EVENT_RSSI_HIGH:
cfg80211_cqm_rssi_notify(priv->netdev,
NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
GFP_KERNEL);
mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
HostCmd_ACT_GEN_GET, 0, NULL, false);
priv->subsc_evt_rssi_state = RSSI_HIGH_RECVD;
dev_dbg(adapter->dev, "event: Beacon RSSI_HIGH\n");
break;
case EVENT_SNR_HIGH:
dev_dbg(adapter->dev, "event: Beacon SNR_HIGH\n");
break;
case EVENT_DATA_RSSI_LOW:
dev_dbg(adapter->dev, "event: Data RSSI_LOW\n");
break;
case EVENT_DATA_SNR_LOW:
dev_dbg(adapter->dev, "event: Data SNR_LOW\n");
break;
case EVENT_DATA_RSSI_HIGH:
dev_dbg(adapter->dev, "event: Data RSSI_HIGH\n");
break;
case EVENT_DATA_SNR_HIGH:
dev_dbg(adapter->dev, "event: Data SNR_HIGH\n");
break;
case EVENT_LINK_QUALITY:
dev_dbg(adapter->dev, "event: Link Quality\n");
break;
case EVENT_PRE_BEACON_LOST:
dev_dbg(adapter->dev, "event: Pre-Beacon Lost\n");
break;
case EVENT_IBSS_COALESCED:
dev_dbg(adapter->dev, "event: IBSS_COALESCED\n");
ret = mwifiex_send_cmd(priv,
HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
HostCmd_ACT_GEN_GET, 0, NULL, false);
break;
case EVENT_ADDBA:
dev_dbg(adapter->dev, "event: ADDBA Request\n");
mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP,
HostCmd_ACT_GEN_SET, 0,
adapter->event_body, false);
break;
case EVENT_DELBA:
dev_dbg(adapter->dev, "event: DELBA Request\n");
mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
break;
case EVENT_BA_STREAM_TIEMOUT:
dev_dbg(adapter->dev, "event: BA Stream timeout\n");
mwifiex_11n_ba_stream_timeout(priv,
(struct host_cmd_ds_11n_batimeout
*)
adapter->event_body);
break;
case EVENT_AMSDU_AGGR_CTRL:
ctrl = le16_to_cpu(*(__le16 *)adapter->event_body);
dev_dbg(adapter->dev, "event: AMSDU_AGGR_CTRL %d\n", ctrl);
adapter->tx_buf_size =
min_t(u16, adapter->curr_tx_buf_size, ctrl);
dev_dbg(adapter->dev, "event: tx_buf_size %d\n",
adapter->tx_buf_size);
break;
case EVENT_WEP_ICV_ERR:
dev_dbg(adapter->dev, "event: WEP ICV error\n");
break;
case EVENT_BW_CHANGE:
dev_dbg(adapter->dev, "event: BW Change\n");
break;
case EVENT_HOSTWAKE_STAIE:
dev_dbg(adapter->dev, "event: HOSTWAKE_STAIE %d\n", eventcause);
break;
case EVENT_REMAIN_ON_CHAN_EXPIRED:
dev_dbg(adapter->dev, "event: Remain on channel expired\n");
cfg80211_remain_on_channel_expired(priv->wdev,
priv->roc_cfg.cookie,
&priv->roc_cfg.chan,
GFP_ATOMIC);
memset(&priv->roc_cfg, 0x00, sizeof(struct mwifiex_roc_cfg));
break;
case EVENT_CHANNEL_SWITCH_ANN:
dev_dbg(adapter->dev, "event: Channel Switch Announcement\n");
priv->csa_expire_time =
jiffies + msecs_to_jiffies(DFS_CHAN_MOVE_TIME);
priv->csa_chan = priv->curr_bss_params.bss_descriptor.channel;
ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_DEAUTHENTICATE,
HostCmd_ACT_GEN_SET, 0,
priv->curr_bss_params.bss_descriptor.mac_address,
false);
break;
case EVENT_TDLS_GENERIC_EVENT:
ret = mwifiex_parse_tdls_event(priv, adapter->event_skb);
break;
default:
dev_dbg(adapter->dev, "event: unknown event id: %#x\n",
eventcause);
break;
}
return ret;
}
/*
* This function handles AP interface specific events generated by firmware.
*
* Event specific routines are called by this function based
* upon the generated event cause.
*
*
* Events supported for AP -
* - EVENT_UAP_STA_ASSOC
* - EVENT_UAP_STA_DEAUTH
* - EVENT_UAP_BSS_ACTIVE
* - EVENT_UAP_BSS_START
* - EVENT_UAP_BSS_IDLE
* - EVENT_UAP_MIC_COUNTERMEASURES:
*/
int mwifiex_process_uap_event(struct mwifiex_private *priv)
{
struct mwifiex_adapter *adapter = priv->adapter;
int len, i;
u32 eventcause = adapter->event_cause;
struct station_info sinfo;
struct mwifiex_assoc_event *event;
struct mwifiex_sta_node *node;
u8 *deauth_mac;
struct host_cmd_ds_11n_batimeout *ba_timeout;
u16 ctrl;
switch (eventcause) {
case EVENT_UAP_STA_ASSOC:
memset(&sinfo, 0, sizeof(sinfo));
event = (struct mwifiex_assoc_event *)
(adapter->event_body + MWIFIEX_UAP_EVENT_EXTRA_HEADER);
if (le16_to_cpu(event->type) == TLV_TYPE_UAP_MGMT_FRAME) {
len = -1;
if (ieee80211_is_assoc_req(event->frame_control))
len = 0;
else if (ieee80211_is_reassoc_req(event->frame_control))
/* There will be ETH_ALEN bytes of
* current_ap_addr before the re-assoc ies.
*/
len = ETH_ALEN;
if (len != -1) {
sinfo.assoc_req_ies = &event->data[len];
len = (u8 *)sinfo.assoc_req_ies -
(u8 *)&event->frame_control;
sinfo.assoc_req_ies_len =
le16_to_cpu(event->len) - (u16)len;
}
}
cfg80211_new_sta(priv->netdev, event->sta_addr, &sinfo,
GFP_KERNEL);
node = mwifiex_add_sta_entry(priv, event->sta_addr);
if (!node) {
mwifiex_dbg(adapter, ERROR,
"could not create station entry!\n");
return -1;
}
if (!priv->ap_11n_enabled)
break;
mwifiex_set_sta_ht_cap(priv, sinfo.assoc_req_ies,
sinfo.assoc_req_ies_len, node);
for (i = 0; i < MAX_NUM_TID; i++) {
if (node->is_11n_enabled)
node->ampdu_sta[i] =
priv->aggr_prio_tbl[i].ampdu_user;
else
node->ampdu_sta[i] = BA_STREAM_NOT_ALLOWED;
}
memset(node->rx_seq, 0xff, sizeof(node->rx_seq));
break;
case EVENT_UAP_STA_DEAUTH:
deauth_mac = adapter->event_body +
MWIFIEX_UAP_EVENT_EXTRA_HEADER;
cfg80211_del_sta(priv->netdev, deauth_mac, GFP_KERNEL);
if (priv->ap_11n_enabled) {
mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, deauth_mac);
mwifiex_del_tx_ba_stream_tbl_by_ra(priv, deauth_mac);
}
mwifiex_wmm_del_peer_ra_list(priv, deauth_mac);
mwifiex_del_sta_entry(priv, deauth_mac);
break;
case EVENT_UAP_BSS_IDLE:
priv->media_connected = false;
priv->port_open = false;
if (netif_carrier_ok(priv->netdev))
netif_carrier_off(priv->netdev);
mwifiex_stop_net_dev_queue(priv->netdev, adapter);
mwifiex_clean_txrx(priv);
mwifiex_del_all_sta_list(priv);
break;
case EVENT_UAP_BSS_ACTIVE:
priv->media_connected = true;
priv->port_open = true;
if (!netif_carrier_ok(priv->netdev))
netif_carrier_on(priv->netdev);
mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
break;
case EVENT_UAP_BSS_START:
mwifiex_dbg(adapter, EVENT,
"AP EVENT: event id: %#x\n", eventcause);
priv->port_open = false;
memcpy(priv->netdev->dev_addr, adapter->event_body + 2,
ETH_ALEN);
if (priv->hist_data)
mwifiex_hist_data_reset(priv);
mwifiex_check_uap_capabilties(priv, adapter->event_skb);
break;
case EVENT_UAP_MIC_COUNTERMEASURES:
/* For future development */
mwifiex_dbg(adapter, EVENT,
"AP EVENT: event id: %#x\n", eventcause);
break;
case EVENT_AMSDU_AGGR_CTRL:
ctrl = le16_to_cpu(*(__le16 *)adapter->event_body);
mwifiex_dbg(adapter, EVENT,
"event: AMSDU_AGGR_CTRL %d\n", ctrl);
if (priv->media_connected) {
adapter->tx_buf_size =
min_t(u16, adapter->curr_tx_buf_size, ctrl);
mwifiex_dbg(adapter, EVENT,
"event: tx_buf_size %d\n",
adapter->tx_buf_size);
}
break;
case EVENT_ADDBA:
mwifiex_dbg(adapter, EVENT, "event: ADDBA Request\n");
if (priv->media_connected)
mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP,
HostCmd_ACT_GEN_SET, 0,
adapter->event_body, false);
break;
case EVENT_DELBA:
mwifiex_dbg(adapter, EVENT, "event: DELBA Request\n");
if (priv->media_connected)
mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
break;
case EVENT_BA_STREAM_TIEMOUT:
mwifiex_dbg(adapter, EVENT, "event: BA Stream timeout\n");
if (priv->media_connected) {
ba_timeout = (void *)adapter->event_body;
mwifiex_11n_ba_stream_timeout(priv, ba_timeout);
}
break;
case EVENT_EXT_SCAN_REPORT:
mwifiex_dbg(adapter, EVENT, "event: EXT_SCAN Report\n");
if (adapter->ext_scan)
return mwifiex_handle_event_ext_scan_report(priv,
adapter->event_skb->data);
break;
case EVENT_TX_STATUS_REPORT:
mwifiex_dbg(adapter, EVENT, "event: TX_STATUS Report\n");
mwifiex_parse_tx_status_event(priv, adapter->event_body);
break;
case EVENT_PS_SLEEP:
mwifiex_dbg(adapter, EVENT, "info: EVENT: SLEEP\n");
adapter->ps_state = PS_STATE_PRE_SLEEP;
mwifiex_check_ps_cond(adapter);
break;
case EVENT_PS_AWAKE:
mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n");
if (!adapter->pps_uapsd_mode &&
priv->media_connected && adapter->sleep_period.period) {
adapter->pps_uapsd_mode = true;
mwifiex_dbg(adapter, EVENT,
"event: PPS/UAPSD mode activated\n");
}
adapter->tx_lock_flag = false;
if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
if (mwifiex_check_last_packet_indication(priv)) {
if (adapter->data_sent) {
adapter->ps_state = PS_STATE_AWAKE;
adapter->pm_wakeup_card_req = false;
adapter->pm_wakeup_fw_try = false;
break;
}
if (!mwifiex_send_null_packet
(priv,
MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
adapter->ps_state =
PS_STATE_SLEEP;
return 0;
}
}
adapter->ps_state = PS_STATE_AWAKE;
adapter->pm_wakeup_card_req = false;
adapter->pm_wakeup_fw_try = false;
break;
case EVENT_CHANNEL_REPORT_RDY:
mwifiex_dbg(adapter, EVENT, "event: Channel Report\n");
mwifiex_11h_handle_chanrpt_ready(priv, adapter->event_skb);
break;
case EVENT_RADAR_DETECTED:
mwifiex_dbg(adapter, EVENT, "event: Radar detected\n");
mwifiex_11h_handle_radar_detected(priv, adapter->event_skb);
break;
case EVENT_BT_COEX_WLAN_PARA_CHANGE:
dev_err(adapter->dev, "EVENT: BT coex wlan param update\n");
mwifiex_bt_coex_wlan_param_update_event(priv,
adapter->event_skb);
break;
case EVENT_TX_DATA_PAUSE:
mwifiex_dbg(adapter, EVENT, "event: TX DATA PAUSE\n");
mwifiex_process_tx_pause_event(priv, adapter->event_skb);
break;
case EVENT_MULTI_CHAN_INFO:
mwifiex_dbg(adapter, EVENT, "event: multi-chan info\n");
mwifiex_process_multi_chan_event(priv, adapter->event_skb);
break;
default:
mwifiex_dbg(adapter, EVENT,
"event: unknown event id: %#x\n", eventcause);
break;
}
return 0;
}
/*
* This function handles events generated by firmware.
*
* This is a generic function and handles all events.
*
* Event specific routines are called by this function based
* upon the generated event cause.
*
* For the following events, the function just forwards them to upper
* layers, optionally recording the change -
* - EVENT_LINK_SENSED
* - EVENT_MIC_ERR_UNICAST
* - EVENT_MIC_ERR_MULTICAST
* - EVENT_PORT_RELEASE
* - EVENT_RSSI_LOW
* - EVENT_SNR_LOW
* - EVENT_MAX_FAIL
* - EVENT_RSSI_HIGH
* - EVENT_SNR_HIGH
* - EVENT_DATA_RSSI_LOW
* - EVENT_DATA_SNR_LOW
* - EVENT_DATA_RSSI_HIGH
* - EVENT_DATA_SNR_HIGH
* - EVENT_LINK_QUALITY
* - EVENT_PRE_BEACON_LOST
* - EVENT_IBSS_COALESCED
* - EVENT_WEP_ICV_ERR
* - EVENT_BW_CHANGE
* - EVENT_HOSTWAKE_STAIE
*
* For the following events, no action is taken -
* - EVENT_MIB_CHANGED
* - EVENT_INIT_DONE
* - EVENT_DUMMY_HOST_WAKEUP_SIGNAL
*
* Rest of the supported events requires driver handling -
* - EVENT_DEAUTHENTICATED
* - EVENT_DISASSOCIATED
* - EVENT_LINK_LOST
* - EVENT_PS_SLEEP
* - EVENT_PS_AWAKE
* - EVENT_DEEP_SLEEP_AWAKE
* - EVENT_HS_ACT_REQ
* - EVENT_ADHOC_BCN_LOST
* - EVENT_BG_SCAN_REPORT
* - EVENT_WMM_STATUS_CHANGE
* - EVENT_ADDBA
* - EVENT_DELBA
* - EVENT_BA_STREAM_TIEMOUT
* - EVENT_AMSDU_AGGR_CTRL
*/
int mwifiex_process_sta_event(struct mwifiex_private *priv)
{
struct mwifiex_adapter *adapter = priv->adapter;
int ret = 0;
u32 eventcause = adapter->event_cause;
switch (eventcause) {
case EVENT_DUMMY_HOST_WAKEUP_SIGNAL:
dev_err(adapter->dev, "invalid EVENT: DUMMY_HOST_WAKEUP_SIGNAL,"
" ignoring it\n");
break;
case EVENT_LINK_SENSED:
dev_dbg(adapter->dev, "event: LINK_SENSED\n");
if (!netif_carrier_ok(priv->netdev))
netif_carrier_on(priv->netdev);
if (netif_queue_stopped(priv->netdev))
mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
break;
case EVENT_DEAUTHENTICATED:
dev_dbg(adapter->dev, "event: Deauthenticated\n");
adapter->dbg.num_event_deauth++;
if (priv->media_connected)
mwifiex_reset_connect_state(priv);
break;
case EVENT_DISASSOCIATED:
dev_dbg(adapter->dev, "event: Disassociated\n");
adapter->dbg.num_event_disassoc++;
if (priv->media_connected)
mwifiex_reset_connect_state(priv);
break;
case EVENT_LINK_LOST:
dev_dbg(adapter->dev, "event: Link lost\n");
adapter->dbg.num_event_link_lost++;
if (priv->media_connected)
mwifiex_reset_connect_state(priv);
break;
case EVENT_PS_SLEEP:
dev_dbg(adapter->dev, "info: EVENT: SLEEP\n");
adapter->ps_state = PS_STATE_PRE_SLEEP;
mwifiex_check_ps_cond(adapter);
break;
case EVENT_PS_AWAKE:
dev_dbg(adapter->dev, "info: EVENT: AWAKE\n");
if (!adapter->pps_uapsd_mode &&
priv->media_connected &&
adapter->sleep_period.period) {
adapter->pps_uapsd_mode = true;
dev_dbg(adapter->dev,
"event: PPS/UAPSD mode activated\n");
}
adapter->tx_lock_flag = false;
if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
if (mwifiex_check_last_packet_indication(priv)) {
if (!adapter->data_sent) {
if (!mwifiex_send_null_packet(priv,
MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET
|
MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
adapter->ps_state =
PS_STATE_SLEEP;
return 0;
}
}
}
adapter->ps_state = PS_STATE_AWAKE;
adapter->pm_wakeup_card_req = false;
adapter->pm_wakeup_fw_try = false;
break;
case EVENT_DEEP_SLEEP_AWAKE:
adapter->if_ops.wakeup_complete(adapter);
dev_dbg(adapter->dev, "event: DS_AWAKE\n");
if (adapter->is_deep_sleep)
adapter->is_deep_sleep = false;
break;
case EVENT_HS_ACT_REQ:
dev_dbg(adapter->dev, "event: HS_ACT_REQ\n");
ret = mwifiex_send_cmd_async(priv,
HostCmd_CMD_802_11_HS_CFG_ENH,
0, 0, NULL);
break;
case EVENT_MIC_ERR_UNICAST:
dev_dbg(adapter->dev, "event: UNICAST MIC ERROR\n");
break;
case EVENT_MIC_ERR_MULTICAST:
dev_dbg(adapter->dev, "event: MULTICAST MIC ERROR\n");
break;
case EVENT_MIB_CHANGED:
case EVENT_INIT_DONE:
break;
case EVENT_ADHOC_BCN_LOST:
dev_dbg(adapter->dev, "event: ADHOC_BCN_LOST\n");
priv->adhoc_is_link_sensed = false;
mwifiex_clean_txrx(priv);
if (!netif_queue_stopped(priv->netdev))
mwifiex_stop_net_dev_queue(priv->netdev, adapter);
if (netif_carrier_ok(priv->netdev))
netif_carrier_off(priv->netdev);
break;
case EVENT_BG_SCAN_REPORT:
dev_dbg(adapter->dev, "event: BGS_REPORT\n");
ret = mwifiex_send_cmd_async(priv,
HostCmd_CMD_802_11_BG_SCAN_QUERY,
HostCmd_ACT_GEN_GET, 0, NULL);
break;
case EVENT_PORT_RELEASE:
dev_dbg(adapter->dev, "event: PORT RELEASE\n");
break;
case EVENT_WMM_STATUS_CHANGE:
dev_dbg(adapter->dev, "event: WMM status changed\n");
ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_WMM_GET_STATUS,
0, 0, NULL);
break;
case EVENT_RSSI_LOW:
dev_dbg(adapter->dev, "event: Beacon RSSI_LOW\n");
break;
case EVENT_SNR_LOW:
dev_dbg(adapter->dev, "event: Beacon SNR_LOW\n");
break;
case EVENT_MAX_FAIL:
dev_dbg(adapter->dev, "event: MAX_FAIL\n");
break;
case EVENT_RSSI_HIGH:
dev_dbg(adapter->dev, "event: Beacon RSSI_HIGH\n");
break;
case EVENT_SNR_HIGH:
dev_dbg(adapter->dev, "event: Beacon SNR_HIGH\n");
break;
case EVENT_DATA_RSSI_LOW:
dev_dbg(adapter->dev, "event: Data RSSI_LOW\n");
break;
case EVENT_DATA_SNR_LOW:
dev_dbg(adapter->dev, "event: Data SNR_LOW\n");
break;
case EVENT_DATA_RSSI_HIGH:
dev_dbg(adapter->dev, "event: Data RSSI_HIGH\n");
break;
case EVENT_DATA_SNR_HIGH:
dev_dbg(adapter->dev, "event: Data SNR_HIGH\n");
break;
case EVENT_LINK_QUALITY:
dev_dbg(adapter->dev, "event: Link Quality\n");
break;
case EVENT_PRE_BEACON_LOST:
dev_dbg(adapter->dev, "event: Pre-Beacon Lost\n");
break;
case EVENT_IBSS_COALESCED:
dev_dbg(adapter->dev, "event: IBSS_COALESCED\n");
ret = mwifiex_send_cmd_async(priv,
HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
HostCmd_ACT_GEN_GET, 0, NULL);
break;
case EVENT_ADDBA:
dev_dbg(adapter->dev, "event: ADDBA Request\n");
mwifiex_send_cmd_async(priv, HostCmd_CMD_11N_ADDBA_RSP,
HostCmd_ACT_GEN_SET, 0,
adapter->event_body);
break;
case EVENT_DELBA:
dev_dbg(adapter->dev, "event: DELBA Request\n");
mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
break;
case EVENT_BA_STREAM_TIEMOUT:
dev_dbg(adapter->dev, "event: BA Stream timeout\n");
mwifiex_11n_ba_stream_timeout(priv,
(struct host_cmd_ds_11n_batimeout
*)
adapter->event_body);
break;
case EVENT_AMSDU_AGGR_CTRL:
dev_dbg(adapter->dev, "event: AMSDU_AGGR_CTRL %d\n",
*(u16 *) adapter->event_body);
adapter->tx_buf_size =
min(adapter->curr_tx_buf_size,
le16_to_cpu(*(__le16 *) adapter->event_body));
dev_dbg(adapter->dev, "event: tx_buf_size %d\n",
adapter->tx_buf_size);
break;
case EVENT_WEP_ICV_ERR:
dev_dbg(adapter->dev, "event: WEP ICV error\n");
break;
case EVENT_BW_CHANGE:
dev_dbg(adapter->dev, "event: BW Change\n");
break;
case EVENT_HOSTWAKE_STAIE:
dev_dbg(adapter->dev, "event: HOSTWAKE_STAIE %d\n", eventcause);
break;
default:
dev_dbg(adapter->dev, "event: unknown event id: %#x\n",
eventcause);
break;
}
return ret;
}