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original_kernel/drivers/net/wireless/marvell/mwifiex/sta_event.c

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// SPDX-License-Identifier: GPL-2.0-only
/*
* NXP Wireless LAN device driver: station event handling
*
* Copyright 2011-2020 NXP
*/
#include "decl.h"
#include "ioctl.h"
#include "util.h"
#include "fw.h"
#include "main.h"
#include "wmm.h"
#include "11n.h"
#define MWIFIEX_IBSS_CONNECT_EVT_FIX_SIZE 12
static int mwifiex_check_ibss_peer_capabilities(struct mwifiex_private *priv,
struct mwifiex_sta_node *sta_ptr,
struct sk_buff *event)
{
int evt_len, ele_len;
u8 *curr;
struct ieee_types_header *ele_hdr;
struct mwifiex_ie_types_mgmt_frame *tlv_mgmt_frame;
const struct ieee80211_ht_cap *ht_cap;
const struct ieee80211_vht_cap *vht_cap;
skb_pull(event, MWIFIEX_IBSS_CONNECT_EVT_FIX_SIZE);
evt_len = event->len;
curr = event->data;
mwifiex_dbg_dump(priv->adapter, EVT_D, "ibss peer capabilities:",
event->data, event->len);
skb_push(event, MWIFIEX_IBSS_CONNECT_EVT_FIX_SIZE);
tlv_mgmt_frame = (void *)curr;
if (evt_len >= sizeof(*tlv_mgmt_frame) &&
le16_to_cpu(tlv_mgmt_frame->header.type) ==
TLV_TYPE_UAP_MGMT_FRAME) {
/* Locate curr pointer to the start of beacon tlv,
* timestamp 8 bytes, beacon intervel 2 bytes,
* capability info 2 bytes, totally 12 byte beacon header
*/
evt_len = le16_to_cpu(tlv_mgmt_frame->header.len);
curr += (sizeof(*tlv_mgmt_frame) + 12);
} else {
mwifiex_dbg(priv->adapter, MSG,
"management frame tlv not found!\n");
return 0;
}
while (evt_len >= sizeof(*ele_hdr)) {
ele_hdr = (struct ieee_types_header *)curr;
ele_len = ele_hdr->len;
if (evt_len < ele_len + sizeof(*ele_hdr))
break;
switch (ele_hdr->element_id) {
case WLAN_EID_HT_CAPABILITY:
sta_ptr->is_11n_enabled = true;
ht_cap = (void *)(ele_hdr + 2);
sta_ptr->max_amsdu = le16_to_cpu(ht_cap->cap_info) &
IEEE80211_HT_CAP_MAX_AMSDU ?
MWIFIEX_TX_DATA_BUF_SIZE_8K :
MWIFIEX_TX_DATA_BUF_SIZE_4K;
mwifiex_dbg(priv->adapter, INFO,
"11n enabled!, max_amsdu : %d\n",
sta_ptr->max_amsdu);
break;
case WLAN_EID_VHT_CAPABILITY:
sta_ptr->is_11ac_enabled = true;
vht_cap = (void *)(ele_hdr + 2);
/* check VHT MAXMPDU capability */
switch (le32_to_cpu(vht_cap->vht_cap_info) & 0x3) {
case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
sta_ptr->max_amsdu =
MWIFIEX_TX_DATA_BUF_SIZE_12K;
break;
case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
sta_ptr->max_amsdu =
MWIFIEX_TX_DATA_BUF_SIZE_8K;
break;
case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
sta_ptr->max_amsdu =
MWIFIEX_TX_DATA_BUF_SIZE_4K;
break;
default:
break;
}
mwifiex_dbg(priv->adapter, INFO,
"11ac enabled!, max_amsdu : %d\n",
sta_ptr->max_amsdu);
break;
default:
break;
}
curr += (ele_len + sizeof(*ele_hdr));
evt_len -= (ele_len + sizeof(*ele_hdr));
}
return 0;
}
/*
* This function resets the connection state.
*
* The function is invoked after receiving a disconnect event from firmware,
* and performs the following actions -
* - Set media status to disconnected
* - Clean up Tx and Rx packets
* - Resets SNR/NF/RSSI value in driver
* - Resets security configurations in driver
* - Enables auto data rate
* - Saves the previous SSID and BSSID so that they can
* be used for re-association, if required
* - Erases current SSID and BSSID information
* - Sends a disconnect event to upper layers/applications.
*/
void mwifiex_reset_connect_state(struct mwifiex_private *priv, u16 reason_code,
bool from_ap)
{
struct mwifiex_adapter *adapter = priv->adapter;
if (!priv->media_connected)
return;
mwifiex_dbg(adapter, INFO,
"info: handles disconnect event\n");
priv->media_connected = false;
priv->scan_block = false;
priv->port_open = false;
if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) {
mwifiex_disable_all_tdls_links(priv);
if (priv->adapter->auto_tdls)
mwifiex_clean_auto_tdls(priv);
}
/* Free Tx and Rx packets, report disconnect to upper layer */
mwifiex_clean_txrx(priv);
/* Reset SNR/NF/RSSI values */
priv->data_rssi_last = 0;
priv->data_nf_last = 0;
priv->data_rssi_avg = 0;
priv->data_nf_avg = 0;
priv->bcn_rssi_last = 0;
priv->bcn_nf_last = 0;
priv->bcn_rssi_avg = 0;
priv->bcn_nf_avg = 0;
priv->rxpd_rate = 0;
priv->rxpd_htinfo = 0;
priv->sec_info.wpa_enabled = false;
priv->sec_info.wpa2_enabled = false;
priv->wpa_ie_len = 0;
priv->sec_info.wapi_enabled = false;
priv->wapi_ie_len = 0;
priv->sec_info.wapi_key_on = false;
priv->sec_info.encryption_mode = 0;
/* Enable auto data rate */
priv->is_data_rate_auto = true;
priv->data_rate = 0;
priv->assoc_resp_ht_param = 0;
priv->ht_param_present = false;
if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) && priv->hist_data)
mwifiex_hist_data_reset(priv);
if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
priv->adhoc_state = ADHOC_IDLE;
priv->adhoc_is_link_sensed = false;
}
/*
* Memorize the previous SSID and BSSID so
* it could be used for re-assoc
*/
mwifiex_dbg(adapter, INFO,
"info: previous SSID=%s, SSID len=%u\n",
priv->prev_ssid.ssid, priv->prev_ssid.ssid_len);
mwifiex_dbg(adapter, INFO,
"info: current SSID=%s, SSID len=%u\n",
priv->curr_bss_params.bss_descriptor.ssid.ssid,
priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
memcpy(&priv->prev_ssid,
&priv->curr_bss_params.bss_descriptor.ssid,
sizeof(struct cfg80211_ssid));
memcpy(priv->prev_bssid,
priv->curr_bss_params.bss_descriptor.mac_address, ETH_ALEN);
/* Need to erase the current SSID and BSSID info */
memset(&priv->curr_bss_params, 0x00, sizeof(priv->curr_bss_params));
adapter->tx_lock_flag = false;
adapter->pps_uapsd_mode = false;
if (test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags) &&
adapter->curr_cmd)
return;
priv->media_connected = false;
mwifiex_dbg(adapter, MSG,
"info: successfully disconnected from %pM: reason code %d\n",
priv->cfg_bssid, reason_code);
if (priv->bss_mode == NL80211_IFTYPE_STATION ||
priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
cfg80211_disconnected(priv->netdev, reason_code, NULL, 0,
!from_ap, GFP_KERNEL);
}
eth_zero_addr(priv->cfg_bssid);
mwifiex_stop_net_dev_queue(priv->netdev, adapter);
if (netif_carrier_ok(priv->netdev))
netif_carrier_off(priv->netdev);
if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info))
return;
mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG,
HostCmd_ACT_GEN_REMOVE, 0, NULL, false);
}
static int mwifiex_parse_tdls_event(struct mwifiex_private *priv,
struct sk_buff *event_skb)
{
int ret = 0;
struct mwifiex_adapter *adapter = priv->adapter;
struct mwifiex_sta_node *sta_ptr;
struct mwifiex_tdls_generic_event *tdls_evt =
(void *)event_skb->data + sizeof(adapter->event_cause);
u8 *mac = tdls_evt->peer_mac;
/* reserved 2 bytes are not mandatory in tdls event */
if (event_skb->len < (sizeof(struct mwifiex_tdls_generic_event) -
sizeof(u16) - sizeof(adapter->event_cause))) {
mwifiex_dbg(adapter, ERROR, "Invalid event length!\n");
return -1;
}
sta_ptr = mwifiex_get_sta_entry(priv, tdls_evt->peer_mac);
if (!sta_ptr) {
mwifiex_dbg(adapter, ERROR, "cannot get sta entry!\n");
return -1;
}
switch (le16_to_cpu(tdls_evt->type)) {
case TDLS_EVENT_LINK_TEAR_DOWN:
cfg80211_tdls_oper_request(priv->netdev,
tdls_evt->peer_mac,
NL80211_TDLS_TEARDOWN,
le16_to_cpu(tdls_evt->u.reason_code),
GFP_KERNEL);
break;
case TDLS_EVENT_CHAN_SWITCH_RESULT:
mwifiex_dbg(adapter, EVENT, "tdls channel switch result :\n");
mwifiex_dbg(adapter, EVENT,
"status=0x%x, reason=0x%x cur_chan=%d\n",
tdls_evt->u.switch_result.status,
tdls_evt->u.switch_result.reason,
tdls_evt->u.switch_result.cur_chan);
/* tdls channel switch failed */
if (tdls_evt->u.switch_result.status != 0) {
switch (tdls_evt->u.switch_result.cur_chan) {
case TDLS_BASE_CHANNEL:
sta_ptr->tdls_status = TDLS_IN_BASE_CHAN;
break;
case TDLS_OFF_CHANNEL:
sta_ptr->tdls_status = TDLS_IN_OFF_CHAN;
break;
default:
break;
}
return ret;
}
/* tdls channel switch success */
switch (tdls_evt->u.switch_result.cur_chan) {
case TDLS_BASE_CHANNEL:
if (sta_ptr->tdls_status == TDLS_IN_BASE_CHAN)
break;
mwifiex_update_ralist_tx_pause_in_tdls_cs(priv, mac,
false);
sta_ptr->tdls_status = TDLS_IN_BASE_CHAN;
break;
case TDLS_OFF_CHANNEL:
if (sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)
break;
mwifiex_update_ralist_tx_pause_in_tdls_cs(priv, mac,
true);
sta_ptr->tdls_status = TDLS_IN_OFF_CHAN;
break;
default:
break;
}
break;
case TDLS_EVENT_START_CHAN_SWITCH:
mwifiex_dbg(adapter, EVENT, "tdls start channel switch...\n");
sta_ptr->tdls_status = TDLS_CHAN_SWITCHING;
break;
case TDLS_EVENT_CHAN_SWITCH_STOPPED:
mwifiex_dbg(adapter, EVENT,
"tdls chan switch stopped, reason=%d\n",
tdls_evt->u.cs_stop_reason);
break;
default:
break;
}
return ret;
}
static void mwifiex_process_uap_tx_pause(struct mwifiex_private *priv,
struct mwifiex_ie_types_header *tlv)
{
struct mwifiex_tx_pause_tlv *tp;
struct mwifiex_sta_node *sta_ptr;
tp = (void *)tlv;
mwifiex_dbg(priv->adapter, EVENT,
"uap tx_pause: %pM pause=%d, pkts=%d\n",
tp->peermac, tp->tx_pause,
tp->pkt_cnt);
if (ether_addr_equal(tp->peermac, priv->netdev->dev_addr)) {
if (tp->tx_pause)
priv->port_open = false;
else
priv->port_open = true;
} else if (is_multicast_ether_addr(tp->peermac)) {
mwifiex_update_ralist_tx_pause(priv, tp->peermac, tp->tx_pause);
} else {
spin_lock_bh(&priv->sta_list_spinlock);
sta_ptr = mwifiex_get_sta_entry(priv, tp->peermac);
if (sta_ptr && sta_ptr->tx_pause != tp->tx_pause) {
sta_ptr->tx_pause = tp->tx_pause;
spin_unlock_bh(&priv->sta_list_spinlock);
mwifiex_update_ralist_tx_pause(priv, tp->peermac,
tp->tx_pause);
} else {
spin_unlock_bh(&priv->sta_list_spinlock);
}
}
}
static void mwifiex_process_sta_tx_pause(struct mwifiex_private *priv,
struct mwifiex_ie_types_header *tlv)
{
struct mwifiex_tx_pause_tlv *tp;
struct mwifiex_sta_node *sta_ptr;
int status;
tp = (void *)tlv;
mwifiex_dbg(priv->adapter, EVENT,
"sta tx_pause: %pM pause=%d, pkts=%d\n",
tp->peermac, tp->tx_pause,
tp->pkt_cnt);
if (ether_addr_equal(tp->peermac, priv->cfg_bssid)) {
if (tp->tx_pause)
priv->port_open = false;
else
priv->port_open = true;
} else {
if (!ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info))
return;
status = mwifiex_get_tdls_link_status(priv, tp->peermac);
if (mwifiex_is_tdls_link_setup(status)) {
spin_lock_bh(&priv->sta_list_spinlock);
sta_ptr = mwifiex_get_sta_entry(priv, tp->peermac);
if (sta_ptr && sta_ptr->tx_pause != tp->tx_pause) {
sta_ptr->tx_pause = tp->tx_pause;
spin_unlock_bh(&priv->sta_list_spinlock);
mwifiex_update_ralist_tx_pause(priv,
tp->peermac,
tp->tx_pause);
} else {
spin_unlock_bh(&priv->sta_list_spinlock);
}
}
}
}
void mwifiex_process_multi_chan_event(struct mwifiex_private *priv,
struct sk_buff *event_skb)
{
struct mwifiex_ie_types_multi_chan_info *chan_info;
struct mwifiex_ie_types_mc_group_info *grp_info;
struct mwifiex_adapter *adapter = priv->adapter;
struct mwifiex_ie_types_header *tlv;
u16 tlv_buf_left, tlv_type, tlv_len;
int intf_num, bss_type, bss_num, i;
struct mwifiex_private *intf_priv;
tlv_buf_left = event_skb->len - sizeof(u32);
chan_info = (void *)event_skb->data + sizeof(u32);
if (le16_to_cpu(chan_info->header.type) != TLV_TYPE_MULTI_CHAN_INFO ||
tlv_buf_left < sizeof(struct mwifiex_ie_types_multi_chan_info)) {
mwifiex_dbg(adapter, ERROR,
"unknown TLV in chan_info event\n");
return;
}
adapter->usb_mc_status = le16_to_cpu(chan_info->status);
mwifiex_dbg(adapter, EVENT, "multi chan operation %s\n",
adapter->usb_mc_status ? "started" : "over");
tlv_buf_left -= sizeof(struct mwifiex_ie_types_multi_chan_info);
tlv = (struct mwifiex_ie_types_header *)chan_info->tlv_buffer;
while (tlv_buf_left >= (int)sizeof(struct mwifiex_ie_types_header)) {
tlv_type = le16_to_cpu(tlv->type);
tlv_len = le16_to_cpu(tlv->len);
if ((sizeof(struct mwifiex_ie_types_header) + tlv_len) >
tlv_buf_left) {
mwifiex_dbg(adapter, ERROR, "wrong tlv: tlvLen=%d,\t"
"tlvBufLeft=%d\n", tlv_len, tlv_buf_left);
break;
}
if (tlv_type != TLV_TYPE_MC_GROUP_INFO) {
mwifiex_dbg(adapter, ERROR, "wrong tlv type: 0x%x\n",
tlv_type);
break;
}
grp_info = (struct mwifiex_ie_types_mc_group_info *)tlv;
intf_num = grp_info->intf_num;
for (i = 0; i < intf_num; i++) {
bss_type = grp_info->bss_type_numlist[i] >> 4;
bss_num = grp_info->bss_type_numlist[i] & BSS_NUM_MASK;
intf_priv = mwifiex_get_priv_by_id(adapter, bss_num,
bss_type);
if (!intf_priv) {
mwifiex_dbg(adapter, ERROR,
"Invalid bss_type bss_num\t"
"in multi channel event\n");
continue;
}
if (adapter->iface_type == MWIFIEX_USB) {
u8 ep;
ep = grp_info->hid_num.usb_ep_num;
if (ep == MWIFIEX_USB_EP_DATA ||
ep == MWIFIEX_USB_EP_DATA_CH2)
intf_priv->usb_port = ep;
}
}
tlv_buf_left -= sizeof(struct mwifiex_ie_types_header) +
tlv_len;
tlv = (void *)((u8 *)tlv + tlv_len +
sizeof(struct mwifiex_ie_types_header));
}
if (adapter->iface_type == MWIFIEX_USB) {
adapter->tx_lock_flag = true;
adapter->usb_mc_setup = true;
mwifiex_multi_chan_resync(adapter);
}
}
void mwifiex_process_tx_pause_event(struct mwifiex_private *priv,
struct sk_buff *event_skb)
{
struct mwifiex_ie_types_header *tlv;
u16 tlv_type, tlv_len;
int tlv_buf_left;
if (!priv->media_connected) {
mwifiex_dbg(priv->adapter, ERROR,
"tx_pause event while disconnected; bss_role=%d\n",
priv->bss_role);
return;
}
tlv_buf_left = event_skb->len - sizeof(u32);
tlv = (void *)event_skb->data + sizeof(u32);
while (tlv_buf_left >= (int)sizeof(struct mwifiex_ie_types_header)) {
tlv_type = le16_to_cpu(tlv->type);
tlv_len = le16_to_cpu(tlv->len);
if ((sizeof(struct mwifiex_ie_types_header) + tlv_len) >
tlv_buf_left) {
mwifiex_dbg(priv->adapter, ERROR,
"wrong tlv: tlvLen=%d, tlvBufLeft=%d\n",
tlv_len, tlv_buf_left);
break;
}
if (tlv_type == TLV_TYPE_TX_PAUSE) {
if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA)
mwifiex_process_sta_tx_pause(priv, tlv);
else
mwifiex_process_uap_tx_pause(priv, tlv);
}
tlv_buf_left -= sizeof(struct mwifiex_ie_types_header) +
tlv_len;
tlv = (void *)((u8 *)tlv + tlv_len +
sizeof(struct mwifiex_ie_types_header));
}
}
/*
* This function handles coex events generated by firmware
*/
void mwifiex_bt_coex_wlan_param_update_event(struct mwifiex_private *priv,
struct sk_buff *event_skb)
{
struct mwifiex_adapter *adapter = priv->adapter;
struct mwifiex_ie_types_header *tlv;
struct mwifiex_ie_types_btcoex_aggr_win_size *winsizetlv;
struct mwifiex_ie_types_btcoex_scan_time *scantlv;
s32 len = event_skb->len - sizeof(u32);
u8 *cur_ptr = event_skb->data + sizeof(u32);
u16 tlv_type, tlv_len;
while (len >= sizeof(struct mwifiex_ie_types_header)) {
tlv = (struct mwifiex_ie_types_header *)cur_ptr;
tlv_len = le16_to_cpu(tlv->len);
tlv_type = le16_to_cpu(tlv->type);
if ((tlv_len + sizeof(struct mwifiex_ie_types_header)) > len)
break;
switch (tlv_type) {
case TLV_BTCOEX_WL_AGGR_WINSIZE:
winsizetlv =
(struct mwifiex_ie_types_btcoex_aggr_win_size *)tlv;
adapter->coex_win_size = winsizetlv->coex_win_size;
adapter->coex_tx_win_size =
winsizetlv->tx_win_size;
adapter->coex_rx_win_size =
winsizetlv->rx_win_size;
mwifiex_coex_ampdu_rxwinsize(adapter);
mwifiex_update_ampdu_txwinsize(adapter);
break;
case TLV_BTCOEX_WL_SCANTIME:
scantlv =
(struct mwifiex_ie_types_btcoex_scan_time *)tlv;
adapter->coex_scan = scantlv->coex_scan;
adapter->coex_min_scan_time = le16_to_cpu(scantlv->min_scan_time);
adapter->coex_max_scan_time = le16_to_cpu(scantlv->max_scan_time);
break;
default:
break;
}
len -= tlv_len + sizeof(struct mwifiex_ie_types_header);
cur_ptr += tlv_len +
sizeof(struct mwifiex_ie_types_header);
}
dev_dbg(adapter->dev, "coex_scan=%d min_scan=%d coex_win=%d, tx_win=%d rx_win=%d\n",
adapter->coex_scan, adapter->coex_min_scan_time,
adapter->coex_win_size, adapter->coex_tx_win_size,
adapter->coex_rx_win_size);
}
static void
mwifiex_fw_dump_info_event(struct mwifiex_private *priv,
struct sk_buff *event_skb)
{
struct mwifiex_adapter *adapter = priv->adapter;
struct mwifiex_fw_dump_header *fw_dump_hdr =
(void *)adapter->event_body;
if (adapter->iface_type != MWIFIEX_USB) {
mwifiex_dbg(adapter, MSG,
"event is not on usb interface, ignore it\n");
return;
}
if (!adapter->devdump_data) {
/* When receive the first event, allocate device dump
* buffer, dump driver info.
*/
adapter->devdump_data = vzalloc(MWIFIEX_FW_DUMP_SIZE);
if (!adapter->devdump_data) {
mwifiex_dbg(adapter, ERROR,
"vzalloc devdump data failure!\n");
return;
}
mwifiex_drv_info_dump(adapter);
/* If no proceeded event arrive in 10s, upload device
* dump data, this will be useful if the end of
* transmission event get lost, in this cornel case,
* user would still get partial of the dump.
*/
schedule_delayed_work(&adapter->devdump_work,
msecs_to_jiffies(MWIFIEX_TIMER_10S));
}
/* Overflow check */
if (adapter->devdump_len + event_skb->len >= MWIFIEX_FW_DUMP_SIZE)
goto upload_dump;
memmove(adapter->devdump_data + adapter->devdump_len,
adapter->event_skb->data, event_skb->len);
adapter->devdump_len += event_skb->len;
if (le16_to_cpu(fw_dump_hdr->type) == FW_DUMP_INFO_ENDED) {
mwifiex_dbg(adapter, MSG,
"receive end of transmission flag event!\n");
goto upload_dump;
}
return;
upload_dump:
cancel_delayed_work_sync(&adapter->devdump_work);
mwifiex_upload_device_dump(adapter);
}
/*
* 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_capabilities(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");
if (adapter->ignore_btcoex_events)
break;
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;
}
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