qcacmn: Enable scan command time out if not disabled explicitly

1. Enable scan command time out for all commands if not disabled
   explicitly.
2. Remove QDF_BUG() for no serialization command buffers

Change-Id: I5357211ef6bc44f8ebd4b8acaa56a12f691fa46d
CRs-Fixed: 2175843

umac/cmn_services/serialization/src/wlan_serialization_enqueue.c

@@ -47,7 +47,6 @@ wlan_serialization_add_cmd_to_given_queue(qdf_list_t *queue,
 	}
 	if (qdf_list_empty(&ser_pdev_obj->global_cmd_pool_list)) {
 		serialization_err("list is full, can't add more");
-		QDF_BUG(0);
 		return WLAN_SER_CMD_DENIED_LIST_FULL;
 	}
 	if (qdf_list_remove_front(&ser_pdev_obj->global_cmd_pool_list,

umac/scan/core/src/wlan_scan_main.h

@@ -435,6 +435,7 @@ struct scan_cb {
  * @ie_whitelist: default ie whitelist attrs
  * @bt_a2dp_enabled: if bt a2dp is enabled
  * @miracast_enabled: miracast enabled
+ * @disable_timeout: command timeout disabled
  * @scan_start_request_buff: buffer used to pass
  *      scan config to event handlers
  */
@@ -453,6 +454,7 @@ struct wlan_scan_obj {
 	struct probe_req_whitelist_attr ie_whitelist;
 	bool bt_a2dp_enabled;
 	bool miracast_enabled;
+	bool disable_timeout;
 	struct scan_start_request scan_start_request_buff;
 };
 

umac/scan/core/src/wlan_scan_manager.c

@@ -371,7 +371,7 @@ scm_scan_start_req(struct scheduler_msg *msg)
 	struct wlan_serialization_command cmd = {0, };
 	enum wlan_serialization_status ser_cmd_status;
 	struct scan_start_request *req;
-	struct wlan_objmgr_psoc *psoc;
+	struct wlan_scan_obj *scan_obj;
 	QDF_STATUS status = QDF_STATUS_SUCCESS;
 
 	if (!msg) {
@@ -386,6 +386,12 @@ scm_scan_start_req(struct scheduler_msg *msg)
 	}
 
 	req = msg->bodyptr;
+	scan_obj = wlan_vdev_get_scan_obj(req->vdev);
+	if (!scan_obj) {
+		scm_debug("Couldn't find scan object");
+		return QDF_STATUS_E_NULL_VALUE;
+	}
+
 	cmd.cmd_type = WLAN_SER_CMD_SCAN;
 	cmd.cmd_id = req->scan_req.scan_id;
 	cmd.cmd_cb = (wlan_serialization_cmd_callback)
@@ -397,15 +403,8 @@ scm_scan_start_req(struct scheduler_msg *msg)
 		SCAN_TIMEOUT_GRACE_PERIOD;
 	cmd.vdev = req->vdev;
 
-	psoc = wlan_vdev_get_psoc(cmd.vdev);
-	/*
-	 * Temp Hack to disable Serialization Timer
-	 * Modified Serialization module to ignore timeout of 0 value
-	 */
-	if (wlan_is_emulation_platform(wlan_psoc_get_nif_phy_version(psoc))) {
+	if (scan_obj->disable_timeout)
 		cmd.cmd_timeout_duration = 0;
-		scm_info("[SCAN-EMULATION]: Disabling Serialization Timer for Emulation\n");
-	}
 
 	scm_info("req: 0x%pK, reqid: %d, scanid: %d, vdevid: %d",
 		req, req->scan_req.scan_req_id, req->scan_req.scan_id,

umac/scan/dispatcher/inc/wlan_scan_ucfg_api.h

@@ -199,6 +199,25 @@ bool ucfg_scan_get_enable(struct wlan_objmgr_psoc *psoc);
 QDF_STATUS ucfg_scan_set_miracast(
 		struct wlan_objmgr_psoc *psoc, bool enable);
 
+/**
+ * ucfg_scan_set_disable_timeout() - Public API to disable/enable scan timeout
+ * @psoc: psoc on which scan timeout need to be disabled
+ * @disable: disable scan timeout if true else enable scan timeout
+ *
+ * Return: QDF_STATUS.
+ */
+QDF_STATUS
+ucfg_scan_set_disable_timeout(struct wlan_objmgr_psoc *psoc, bool disable);
+
+/**
+ * ucfg_scan_get_disable_timeout() - Public API to get if scan timeout
+ * is enabled or disabled
+ * @psoc: psoc on which scan timeout status need to be checked
+ *
+ * Return: true if timeout is diaabled else false.
+ */
+bool ucfg_scan_get_disable_timeout(struct wlan_objmgr_psoc *psoc);
+
 /**
  * ucfg_scan_set_wide_band_scan() - Public API to disable/enable wide band scan
  * @pdev: psoc on which scans need to be disabled

umac/scan/dispatcher/src/wlan_scan_ucfg_api.c

@@ -949,6 +949,34 @@ QDF_STATUS ucfg_scan_set_miracast(
 	return QDF_STATUS_SUCCESS;
 }
 
+QDF_STATUS
+ucfg_scan_set_disable_timeout(struct wlan_objmgr_psoc *psoc, bool disable)
+{
+	struct wlan_scan_obj *scan_obj;
+
+	scan_obj = wlan_psoc_get_scan_obj(psoc);
+	if (!scan_obj) {
+		scm_err("Failed to get scan object");
+		return QDF_STATUS_E_NULL_VALUE;
+	}
+	scan_obj->disable_timeout = disable;
+	scm_debug("set disable_timeout to %d", scan_obj->disable_timeout);
+
+	return QDF_STATUS_SUCCESS;
+}
+
+bool ucfg_scan_get_disable_timeout(struct wlan_objmgr_psoc *psoc)
+{
+	struct wlan_scan_obj *scan_obj;
+
+	scan_obj = wlan_psoc_get_scan_obj(psoc);
+	if (!scan_obj) {
+		scm_err("Failed to get scan object");
+		return false;
+	}
+	return scan_obj->disable_timeout;
+}
+
 QDF_STATUS
 ucfg_scan_set_wide_band_scan(struct wlan_objmgr_pdev *pdev, bool enable)
 {
@@ -1281,6 +1309,7 @@ static QDF_STATUS
 wlan_scan_global_init(struct wlan_scan_obj *scan_obj)
 {
 	scan_obj->enable_scan = true;
+	scan_obj->disable_timeout = false;
 	scan_obj->scan_def.active_dwell = SCAN_ACTIVE_DWELL_TIME;
 	scan_obj->scan_def.passive_dwell = SCAN_PASSIVE_DWELL_TIME;
 	scan_obj->scan_def.max_rest_time = SCAN_MAX_REST_TIME;