/**
* @brief Callback to finish 11H channel check handling.
* Not to be called directly to initiate channel check.
*
* @param priv A pointer to mlan_private structure (cast from t_void*)
*
* @return MLAN_STATUS_SUCCESS/PENDING --success, otherwise fail
* @sa wlan_uap_11h_channel_check_req
*/
static mlan_status
wlan_uap_callback_11h_channel_check_req(IN t_void * priv)
{
mlan_status ret = MLAN_STATUS_FAILURE;
mlan_private *pmpriv = (mlan_private *) priv;
mlan_callbacks *pcb = (mlan_callbacks *) & pmpriv->adapter->callbacks;
wlan_uap_get_info_cb_t *puap_state_chan_cb = &pmpriv->uap_state_chan_cb;
/* keep copy as local variable */
pmlan_ioctl_req pioctl = puap_state_chan_cb->pioctl_req_curr;
ENTER();
/* clear callback now that we're here */
puap_state_chan_cb->get_chan_callback = MNULL;
/* clear early to avoid race condition */
puap_state_chan_cb->pioctl_req_curr = MNULL;
/*
* Check if the region and channel requires a channel availability
* check.
*/
if ((puap_state_chan_cb->band_config & BAND_CONFIG_5GHZ) &&
wlan_11h_radar_detect_required(pmpriv, puap_state_chan_cb->channel)
&& !wlan_11h_is_channel_under_nop(pmpriv->adapter,
puap_state_chan_cb->channel)) {
/*
* Radar detection is required for this channel, make sure
* 11h is activated in the firmware
*/
ret = wlan_11h_activate(pmpriv, MNULL, MTRUE);
ret = wlan_11h_config_master_radar_det(pmpriv, MTRUE);
ret = wlan_11h_check_update_radar_det_state(pmpriv);
/* Check for radar on the channel */
ret = wlan_11h_issue_radar_detect(pmpriv,
pioctl,
puap_state_chan_cb->channel);
if (ret == MLAN_STATUS_SUCCESS)
ret = MLAN_STATUS_PENDING;
} else {
/* No command sent with the ioctl, need manually signal
completion */
pcb->moal_ioctl_complete(pmpriv->adapter->pmoal_handle,
pioctl, MLAN_STATUS_FAILURE);
}
LEAVE();
return ret;
}
/**
* @brief Callback to finish BSS IOCTL START
* Not to be called directly to initiate bss_start
*
* @param priv A pointer to mlan_private structure (cast from t_void*)
*
* @return MLAN_STATUS_PENDING --success, otherwise fail
* @sa wlan_uap_bss_ioctl_start
*/
static mlan_status
wlan_uap_callback_bss_ioctl_start(IN t_void * priv)
{
mlan_status ret = MLAN_STATUS_SUCCESS;
mlan_private *pmpriv = (mlan_private *) priv;
mlan_callbacks *pcb = (mlan_callbacks *) & pmpriv->adapter->callbacks;
wlan_uap_get_info_cb_t *puap_state_chan_cb = &pmpriv->uap_state_chan_cb;
t_u8 old_channel;
ENTER();
/* clear callback now that we're here */
puap_state_chan_cb->get_chan_callback = MNULL;
/*
* Check if the region and channel requires we check for radar.
*/
if ((puap_state_chan_cb->band_config & BAND_CONFIG_5GHZ) &&
wlan_11h_radar_detect_required(pmpriv, puap_state_chan_cb->channel)) {
/* first check if channel is under NOP */
if (wlan_11h_is_channel_under_nop(pmpriv->adapter,
puap_state_chan_cb->channel)) {
/* recently we've seen radar on this channel */
ret = MLAN_STATUS_FAILURE;
}
/* Check cached radar check on the channel */
if (ret == MLAN_STATUS_SUCCESS)
ret =
wlan_11h_check_chan_report(pmpriv, puap_state_chan_cb->channel);
/* Found radar: try to switch to a non-dfs channel */
if (ret != MLAN_STATUS_SUCCESS) {
old_channel = puap_state_chan_cb->channel;
ret =
wlan_11h_switch_non_dfs_chan(pmpriv,
&puap_state_chan_cb->channel);
if (ret == MLAN_STATUS_SUCCESS) {
ret = wlan_uap_set_channel(pmpriv,
pmpriv->uap_state_chan_cb.
band_config,
puap_state_chan_cb->channel);
if (ret == MLAN_STATUS_SUCCESS) {
PRINTM(MMSG, "Radar found on channel %d,"
"switch to new channel %d.\n",
old_channel, puap_state_chan_cb->channel);
} else {
PRINTM(MMSG, "Radar found on channel %d,"
" switch to new channel %d failed.\n",
old_channel, puap_state_chan_cb->channel);
pcb->moal_ioctl_complete(pmpriv->adapter->pmoal_handle,
puap_state_chan_cb->
pioctl_req_curr,
MLAN_STATUS_FAILURE);
goto done;
}
} else {
PRINTM(MMSG,
"Radar found on channel %d, no switch channel available.\n",
old_channel);
/* No command sent with the ioctl, need manually signal
completion */
pcb->moal_ioctl_complete(pmpriv->adapter->pmoal_handle,
puap_state_chan_cb->pioctl_req_curr,
MLAN_STATUS_FAILURE);
goto done;
}
} else {
PRINTM(MINFO, "No Radar found on channel %d\n",
puap_state_chan_cb->channel);
}
}
/* else okay to send command: not DFS channel or no radar */
ret = wlan_prepare_cmd(pmpriv,
HOST_CMD_APCMD_BSS_START,
HostCmd_ACT_GEN_SET,
0,
(t_void *) puap_state_chan_cb->pioctl_req_curr,
MNULL);
if (ret == MLAN_STATUS_SUCCESS)
ret = MLAN_STATUS_PENDING;
done:
puap_state_chan_cb->pioctl_req_curr = MNULL; // prevent re-use
LEAVE();
return ret;
}
