static void iwl_process_scan_complete(struct iwl_priv *priv)
{
bool aborted;
lockdep_assert_held(&priv->mutex);
if (!test_and_clear_bit(STATUS_SCAN_COMPLETE, &priv->status))
return;
IWL_DEBUG_SCAN(priv, "Completed scan.\n");
cancel_delayed_work(&priv->scan_check);
aborted = test_and_clear_bit(STATUS_SCAN_ABORTING, &priv->status);
if (aborted)
IWL_DEBUG_SCAN(priv, "Aborted scan completed.\n");
if (!test_and_clear_bit(STATUS_SCANNING, &priv->status)) {
IWL_DEBUG_SCAN(priv, "Scan already completed.\n");
goto out_settings;
}
if (priv->scan_type != IWL_SCAN_NORMAL && !aborted) {
int err;
/* Check if mac80211 requested scan during our internal scan */
if (priv->scan_request == NULL)
goto out_complete;
/* If so request a new scan */
err = iwl_scan_initiate(priv, priv->scan_vif, IWL_SCAN_NORMAL,
priv->scan_request->channels[0]->band);
if (err) {
IWL_DEBUG_SCAN(priv,
"failed to initiate pending scan: %d\n", err);
aborted = true;
goto out_complete;
}
return;
}
out_complete:
iwl_complete_scan(priv, aborted);
out_settings:
/* Can we still talk to firmware ? */
if (!iwl_is_ready_rf(priv))
return;
iwlagn_post_scan(priv);
}
void iwl_force_scan_end(struct iwl_priv *priv)
{
lockdep_assert_held(&priv->mutex);
if (!test_bit(STATUS_SCANNING, &priv->status)) {
IWL_DEBUG_SCAN(priv, "Forcing scan end while not scanning\n");
return;
}
IWL_DEBUG_SCAN(priv, "Forcing scan end\n");
clear_bit(STATUS_SCANNING, &priv->status);
clear_bit(STATUS_SCAN_HW, &priv->status);
clear_bit(STATUS_SCAN_ABORTING, &priv->status);
iwl_complete_scan(priv, true);
}
static int iwl_send_scan_abort(struct iwl_priv *priv)
{
int ret;
struct iwl_host_cmd cmd = {
.id = REPLY_SCAN_ABORT_CMD,
.flags = CMD_SYNC | CMD_WANT_SKB,
};
__le32 *status;
/* Exit instantly with error when device is not ready
* to receive scan abort command or it does not perform
* hardware scan currently */
if (!test_bit(STATUS_READY, &priv->status) ||
!test_bit(STATUS_SCAN_HW, &priv->status) ||
test_bit(STATUS_FW_ERROR, &priv->status))
return -EIO;
ret = iwl_dvm_send_cmd(priv, &cmd);
if (ret)
return ret;
status = (void *)cmd.resp_pkt->data;
if (*status != CAN_ABORT_STATUS) {
/* The scan abort will return 1 for success or
* 2 for "failure". A failure condition can be
* due to simply not being in an active scan which
* can occur if we send the scan abort before we
* the microcode has notified us that a scan is
* completed. */
IWL_DEBUG_SCAN(priv, "SCAN_ABORT ret %d.\n",
le32_to_cpu(*status));
ret = -EIO;
}
iwl_free_resp(&cmd);
return ret;
}
static void iwl_complete_scan(struct iwl_priv *priv, bool aborted)
{
/* check if scan was requested from mac80211 */
if (priv->scan_request) {
IWL_DEBUG_SCAN(priv, "Complete scan in mac80211\n");
ieee80211_scan_completed(priv->hw, aborted);
}
priv->scan_type = IWL_SCAN_NORMAL;
priv->scan_vif = NULL;
priv->scan_request = NULL;
}
static void iwl_process_scan_complete(struct iwl_priv *priv)
{
bool aborted;
lockdep_assert_held(&priv->mutex);
if (!test_and_clear_bit(STATUS_SCAN_COMPLETE, &priv->status))
return;
IWL_DEBUG_SCAN(priv, "Completed scan.\n");
cancel_delayed_work(&priv->scan_check);
aborted = test_and_clear_bit(STATUS_SCAN_ABORTING, &priv->status);
if (aborted)
IWL_DEBUG_SCAN(priv, "Aborted scan completed.\n");
if (!test_and_clear_bit(STATUS_SCANNING, &priv->status)) {
IWL_DEBUG_SCAN(priv, "Scan already completed.\n");
goto out_settings;
}
if (priv->scan_type != IWL_SCAN_NORMAL && !aborted) {
int err;
/* Check if mac80211 requested scan during our internal scan */
if (priv->scan_request == NULL)
goto out_complete;
/* If so request a new scan */
err = iwl_scan_initiate(priv, priv->scan_vif, IWL_SCAN_NORMAL,
priv->scan_request->channels[0]->band);
if (err) {
IWL_DEBUG_SCAN(priv,
"failed to initiate pending scan: %d\n", err);
aborted = true;
goto out_complete;
}
return;
}
out_complete:
iwl_complete_scan(priv, aborted);
out_settings:
/* Can we still talk to firmware ? */
if (!iwl_is_ready_rf(priv))
return;
iwlagn_post_scan(priv);
}
static int iwl_send_scan_abort(struct iwl_priv *priv)
{
int ret;
struct iwl_rx_packet *pkt;
struct iwl_host_cmd cmd = {
.id = REPLY_SCAN_ABORT_CMD,
.flags = CMD_SYNC | CMD_WANT_SKB,
};
/* Exit instantly with error when device is not ready
* to receive scan abort command or it does not perform
* hardware scan currently */
if (!test_bit(STATUS_READY, &priv->status) ||
!test_bit(STATUS_GEO_CONFIGURED, &priv->status) ||
!test_bit(STATUS_SCAN_HW, &priv->status) ||
test_bit(STATUS_FW_ERROR, &priv->status) ||
test_bit(STATUS_EXIT_PENDING, &priv->status))
return -EIO;
ret = trans_send_cmd(&priv->trans, &cmd);
if (ret)
return ret;
pkt = (struct iwl_rx_packet *)cmd.reply_page;
if (pkt->u.status != CAN_ABORT_STATUS) {
/* The scan abort will return 1 for success or
* 2 for "failure". A failure condition can be
* due to simply not being in an active scan which
* can occur if we send the scan abort before we
* the microcode has notified us that a scan is
* completed. */
IWL_DEBUG_SCAN(priv, "SCAN_ABORT ret %d.\n", pkt->u.status);
ret = -EIO;
}
iwl_free_pages(priv, cmd.reply_page);
return ret;
}
static void iwl_complete_scan(struct iwl_priv *priv, bool aborted)
{
/* check if scan was requested from mac80211 */
if (priv->scan_request) {
IWL_DEBUG_SCAN(priv, "Complete scan in mac80211\n");
ieee80211_scan_completed(priv->hw, aborted);
}
priv->scan_type = IWL_SCAN_NORMAL;
priv->scan_vif = NULL;
priv->scan_request = NULL;
}
void iwl_force_scan_end(struct iwl_priv *priv)
{
lockdep_assert_held(&priv->mutex);
if (!test_bit(STATUS_SCANNING, &priv->status)) {
IWL_DEBUG_SCAN(priv, "Forcing scan end while not scanning\n");
return;
}
IWL_DEBUG_SCAN(priv, "Forcing scan end\n");
clear_bit(STATUS_SCANNING, &priv->status);
clear_bit(STATUS_SCAN_HW, &priv->status);
clear_bit(STATUS_SCAN_ABORTING, &priv->status);
iwl_complete_scan(priv, true);
}
static int iwl_send_scan_abort(struct iwl_priv *priv)
{
int ret;
struct iwl_host_cmd cmd = {
.id = REPLY_SCAN_ABORT_CMD,
.flags = CMD_SYNC | CMD_WANT_SKB,
};
__le32 *status;
if (!test_bit(STATUS_READY, &priv->status) ||
!test_bit(STATUS_GEO_CONFIGURED, &priv->status) ||
!test_bit(STATUS_SCAN_HW, &priv->status) ||
test_bit(STATUS_FW_ERROR, &priv->shrd->status))
return -EIO;
ret = iwl_dvm_send_cmd(priv, &cmd);
if (ret)
return ret;
status = (void *)cmd.resp_pkt->data;
if (*status != CAN_ABORT_STATUS) {
IWL_DEBUG_SCAN(priv, "SCAN_ABORT ret %d.\n",
le32_to_cpu(*status));
ret = -EIO;
}
iwl_free_resp(&cmd);
return ret;
}
static void iwl_complete_scan(struct iwl_priv *priv, bool aborted)
{
if (priv->scan_request) {
IWL_DEBUG_SCAN(priv, "Complete scan in mac80211\n");
ieee80211_scan_completed(priv->hw, aborted);
}
if (priv->scan_type == IWL_SCAN_ROC) {
ieee80211_remain_on_channel_expired(priv->hw);
priv->hw_roc_channel = NULL;
schedule_delayed_work(&priv->hw_roc_disable_work, 10 * HZ);
}
priv->scan_type = IWL_SCAN_NORMAL;
priv->scan_vif = NULL;
priv->scan_request = NULL;
}
static void iwl_process_scan_complete(struct iwl_priv *priv)
{
bool aborted;
lockdep_assert_held(&priv->mutex);
if (!test_and_clear_bit(STATUS_SCAN_COMPLETE, &priv->status))
return;
IWL_DEBUG_SCAN(priv, "Completed scan.\n");
cancel_delayed_work(&priv->scan_check);
aborted = test_and_clear_bit(STATUS_SCAN_ABORTING, &priv->status);
if (aborted)
IWL_DEBUG_SCAN(priv, "Aborted scan completed.\n");
if (!test_and_clear_bit(STATUS_SCANNING, &priv->status)) {
IWL_DEBUG_SCAN(priv, "Scan already completed.\n");
goto out_settings;
}
if (priv->scan_type == IWL_SCAN_ROC) {
ieee80211_remain_on_channel_expired(priv->hw);
priv->hw_roc_channel = NULL;
schedule_delayed_work(&priv->hw_roc_disable_work, 10 * HZ);
}
if (priv->scan_type != IWL_SCAN_NORMAL && !aborted) {
int err;
if (priv->scan_request == NULL)
goto out_complete;
err = iwl_scan_initiate(priv, priv->scan_vif, IWL_SCAN_NORMAL,
priv->scan_request->channels[0]->band);
if (err) {
IWL_DEBUG_SCAN(priv,
"failed to initiate pending scan: %d\n", err);
aborted = true;
goto out_complete;
}
return;
}
out_complete:
iwl_complete_scan(priv, aborted);
out_settings:
if (!iwl_is_ready_rf(priv))
return;
iwlagn_post_scan(priv);
}
