/*
* Association firmware command response handler
*
* The response buffer for the association command has the following
* memory layout.
*
* For cases where an association response was not received (indicated
* by the CapInfo and AId field):
*
* .------------------------------------------------------------.
* | Header(4 * sizeof(t_u16)): Standard command response hdr |
* .------------------------------------------------------------.
* | cap_info/Error Return(t_u16): |
* | 0xFFFF(-1): Internal error |
* | 0xFFFE(-2): Authentication unhandled message |
* | 0xFFFD(-3): Authentication refused |
* | 0xFFFC(-4): Timeout waiting for AP response |
* .------------------------------------------------------------.
* | status_code(t_u16): |
* | If cap_info is -1: |
* | An internal firmware failure prevented the |
* | command from being processed. The status_code |
* | will be set to 1. |
* | |
* | If cap_info is -2: |
* | An authentication frame was received but was |
* | not handled by the firmware. IEEE Status |
* | code for the failure is returned. |
* | |
* | If cap_info is -3: |
* | An authentication frame was received and the |
* | status_code is the IEEE Status reported in the |
* | response. |
* | |
* | If cap_info is -4: |
* | (1) Association response timeout |
* | (2) Authentication response timeout |
* .------------------------------------------------------------.
* | a_id(t_u16): 0xFFFF |
* .------------------------------------------------------------.
*
*
* For cases where an association response was received, the IEEE
* standard association response frame is returned:
*
* .------------------------------------------------------------.
* | Header(4 * sizeof(t_u16)): Standard command response hdr |
* .------------------------------------------------------------.
* | cap_info(t_u16): IEEE Capability |
* .------------------------------------------------------------.
* | status_code(t_u16): IEEE Status Code |
* .------------------------------------------------------------.
* | a_id(t_u16): IEEE Association ID |
* .------------------------------------------------------------.
* | IEEE IEs(variable): Any received IEs comprising the |
* | remaining portion of a received |
* | association response frame. |
* .------------------------------------------------------------.
*
* For simplistic handling, the status_code field can be used to determine
* an association success (0) or failure (non-zero).
*/
int mwifiex_ret_802_11_associate(struct mwifiex_private *priv,
struct host_cmd_ds_command *resp)
{
struct mwifiex_adapter *adapter = priv->adapter;
int ret = 0;
struct ieee_types_assoc_rsp *assoc_rsp;
struct mwifiex_bssdescriptor *bss_desc;
bool enable_data = true;
u16 cap_info, status_code;
assoc_rsp = (struct ieee_types_assoc_rsp *) &resp->params;
cap_info = le16_to_cpu(assoc_rsp->cap_info_bitmap);
status_code = le16_to_cpu(assoc_rsp->status_code);
priv->assoc_rsp_size = min(le16_to_cpu(resp->size) - S_DS_GEN,
sizeof(priv->assoc_rsp_buf));
memcpy(priv->assoc_rsp_buf, &resp->params, priv->assoc_rsp_size);
if (status_code) {
priv->adapter->dbg.num_cmd_assoc_failure++;
dev_err(priv->adapter->dev,
"ASSOC_RESP: failed, status code=%d err=%#x a_id=%#x\n",
status_code, cap_info, le16_to_cpu(assoc_rsp->a_id));
if (cap_info == MWIFIEX_TIMEOUT_FOR_AP_RESP) {
if (status_code == MWIFIEX_STATUS_CODE_AUTH_TIMEOUT)
ret = WLAN_STATUS_AUTH_TIMEOUT;
else
ret = WLAN_STATUS_UNSPECIFIED_FAILURE;
} else {
ret = status_code;
}
goto done;
}
/* Send a Media Connected event, according to the Spec */
priv->media_connected = true;
priv->adapter->ps_state = PS_STATE_AWAKE;
priv->adapter->pps_uapsd_mode = false;
priv->adapter->tx_lock_flag = false;
/* Set the attempted BSSID Index to current */
bss_desc = priv->attempted_bss_desc;
dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: %s\n",
bss_desc->ssid.ssid);
/* Make a copy of current BSSID descriptor */
memcpy(&priv->curr_bss_params.bss_descriptor,
bss_desc, sizeof(struct mwifiex_bssdescriptor));
/* Update curr_bss_params */
priv->curr_bss_params.bss_descriptor.channel
= bss_desc->phy_param_set.ds_param_set.current_chan;
priv->curr_bss_params.band = (u8) bss_desc->bss_band;
if (bss_desc->wmm_ie.vend_hdr.element_id == WLAN_EID_VENDOR_SPECIFIC)
priv->curr_bss_params.wmm_enabled = true;
else
priv->curr_bss_params.wmm_enabled = false;
if ((priv->wmm_required || bss_desc->bcn_ht_cap) &&
priv->curr_bss_params.wmm_enabled)
priv->wmm_enabled = true;
else
priv->wmm_enabled = false;
priv->curr_bss_params.wmm_uapsd_enabled = false;
if (priv->wmm_enabled)
priv->curr_bss_params.wmm_uapsd_enabled
= ((bss_desc->wmm_ie.qos_info_bitmap &
IEEE80211_WMM_IE_AP_QOSINFO_UAPSD) ? 1 : 0);
dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: curr_pkt_filter is %#x\n",
priv->curr_pkt_filter);
if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
priv->wpa_is_gtk_set = false;
if (priv->wmm_enabled) {
/* Don't re-enable carrier until we get the WMM_GET_STATUS
event */
enable_data = false;
} else {
/* Since WMM is not enabled, setup the queues with the
defaults */
mwifiex_wmm_setup_queue_priorities(priv, NULL);
mwifiex_wmm_setup_ac_downgrade(priv);
}
if (enable_data)
dev_dbg(priv->adapter->dev,
"info: post association, re-enabling data flow\n");
/* 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;
mwifiex_save_curr_bcn(priv);
priv->adapter->dbg.num_cmd_assoc_success++;
dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: associated\n");
/* Add the ra_list here for infra mode as there will be only 1 ra
always */
mwifiex_ralist_add(priv,
priv->curr_bss_params.bss_descriptor.mac_address);
if (!netif_carrier_ok(priv->netdev))
netif_carrier_on(priv->netdev);
mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
priv->scan_block = true;
done:
/* Need to indicate IOCTL complete */
if (adapter->curr_cmd->wait_q_enabled) {
if (ret)
adapter->cmd_wait_q.status = -1;
else
adapter->cmd_wait_q.status = 0;
}
return ret;
}
int mwifiex_ret_802_11_associate(struct mwifiex_private *priv,
struct host_cmd_ds_command *resp)
{
struct mwifiex_adapter *adapter = priv->adapter;
int ret = 0;
struct ieee_types_assoc_rsp *assoc_rsp;
struct mwifiex_bssdescriptor *bss_desc;
u8 enable_data = true;
assoc_rsp = (struct ieee_types_assoc_rsp *) &resp->params;
priv->assoc_rsp_size = min(le16_to_cpu(resp->size) - S_DS_GEN,
sizeof(priv->assoc_rsp_buf));
memcpy(priv->assoc_rsp_buf, &resp->params, priv->assoc_rsp_size);
if (le16_to_cpu(assoc_rsp->status_code)) {
priv->adapter->dbg.num_cmd_assoc_failure++;
dev_err(priv->adapter->dev,
"ASSOC_RESP: failed, status code=%d err=%#x a_id=%#x\n",
le16_to_cpu(assoc_rsp->status_code),
le16_to_cpu(assoc_rsp->cap_info_bitmap),
le16_to_cpu(assoc_rsp->a_id));
ret = le16_to_cpu(assoc_rsp->status_code);
goto done;
}
priv->media_connected = true;
priv->adapter->ps_state = PS_STATE_AWAKE;
priv->adapter->pps_uapsd_mode = false;
priv->adapter->tx_lock_flag = false;
bss_desc = priv->attempted_bss_desc;
dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: %s\n",
bss_desc->ssid.ssid);
memcpy(&priv->curr_bss_params.bss_descriptor,
bss_desc, sizeof(struct mwifiex_bssdescriptor));
priv->curr_bss_params.bss_descriptor.channel
= bss_desc->phy_param_set.ds_param_set.current_chan;
priv->curr_bss_params.band = (u8) bss_desc->bss_band;
if (bss_desc->wmm_ie.vend_hdr.element_id == WLAN_EID_VENDOR_SPECIFIC)
priv->curr_bss_params.wmm_enabled = true;
else
priv->curr_bss_params.wmm_enabled = false;
if ((priv->wmm_required || bss_desc->bcn_ht_cap) &&
priv->curr_bss_params.wmm_enabled)
priv->wmm_enabled = true;
else
priv->wmm_enabled = false;
priv->curr_bss_params.wmm_uapsd_enabled = false;
if (priv->wmm_enabled)
priv->curr_bss_params.wmm_uapsd_enabled
= ((bss_desc->wmm_ie.qos_info_bitmap &
IEEE80211_WMM_IE_AP_QOSINFO_UAPSD) ? 1 : 0);
dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: curr_pkt_filter is %#x\n",
priv->curr_pkt_filter);
if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
priv->wpa_is_gtk_set = false;
if (priv->wmm_enabled) {
enable_data = false;
} else {
mwifiex_wmm_setup_queue_priorities(priv, NULL);
mwifiex_wmm_setup_ac_downgrade(priv);
}
if (enable_data)
dev_dbg(priv->adapter->dev,
"info: post association, re-enabling data flow\n");
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;
mwifiex_save_curr_bcn(priv);
priv->adapter->dbg.num_cmd_assoc_success++;
dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: associated\n");
mwifiex_ralist_add(priv,
priv->curr_bss_params.bss_descriptor.mac_address);
if (!netif_carrier_ok(priv->netdev))
netif_carrier_on(priv->netdev);
if (netif_queue_stopped(priv->netdev))
netif_wake_queue(priv->netdev);
if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
priv->scan_block = true;
done:
if (adapter->curr_cmd->wait_q_enabled) {
if (ret)
adapter->cmd_wait_q.status = -1;
else
adapter->cmd_wait_q.status = 0;
}
return ret;
}