qcacld-3.0: Override powersave configuration for monitor mode

Currently, powersave configuration is being overwritten before INIs
are initialized by mlme component. As a result INI configuration is
not being overwritten in case of monitor mode.

To resolve this issue, overwrite PS configuration during start
modules and restore it in stop modules.

Change-Id: I2707b431b81881c943104b211d55c6f48f348ba9
CRs-Fixed: 2682164

components/mlme/dispatcher/inc/wlan_mlme_api.h

@@ -2240,7 +2240,6 @@ QDF_STATUS wlan_mlme_is_bmps_enabled(struct wlan_objmgr_psoc *psoc,
 /**
  * wlan_mlme_override_bmps_imps() - disable imps/bmps
  * @psoc: pointer to psoc object
- * @value: value that is requested by the caller
  *
  * Return: QDF_STATUS_SUCCESS - in case of success
  */

core/hdd/inc/wlan_hdd_cfg.h

@@ -341,6 +341,15 @@ QDF_STATUS hdd_get_nss(struct hdd_adapter *adapter, uint8_t *nss);
  */
 bool hdd_dfs_indicate_radar(struct hdd_context *hdd_ctx);
 
+/**
+ * hdd_restore_all_ps() - Restore all the powersave configuration overwritten
+ * by hdd_override_all_ps.
+ * @hdd_ctx: Pointer to HDD context.
+ *
+ * Return: None
+ */
+void hdd_restore_all_ps(struct hdd_context *hdd_ctx);
+
 /**
  * hdd_override_all_ps() - overrides to disables all the powersave features.
  * @hdd_ctx: Pointer to HDD context.

core/hdd/src/wlan_hdd_cfg.c

@@ -339,40 +339,86 @@ config_exit:
 	return qdf_status;
 }
 
+#ifdef FEATURE_RUNTIME_PM
 /**
  * hdd_disable_runtime_pm() - Override to disable runtime_pm.
  * @cfg_ini: Handle to struct hdd_config
  *
  * Return: None
  */
-#ifdef FEATURE_RUNTIME_PM
 static void hdd_disable_runtime_pm(struct hdd_config *cfg_ini)
 {
 	cfg_ini->runtime_pm = 0;
 }
+
+/**
+ * hdd_restore_runtime_pm() - Restore runtime_pm configuration.
+ * @cfg_ini: Handle to struct hdd_config
+ *
+ * Return: None
+ */
+static void hdd_restore_runtime_pm(struct hdd_context *hdd_ctx)
+{
+	struct hdd_config *cfg_ini = hdd_ctx->config;
+
+	cfg_ini->runtime_pm = cfg_get(hdd_ctx->psoc, CFG_ENABLE_RUNTIME_PM);
+}
 #else
 static void hdd_disable_runtime_pm(struct hdd_config *cfg_ini)
 {
 }
+
+static void hdd_restore_runtime_pm(struct hdd_context *hdd_ctx)
+{
+}
 #endif
 
+#ifdef FEATURE_WLAN_AUTO_SHUTDOWN
 /**
  * hdd_disable_auto_shutdown() - Override to disable auto_shutdown.
  * @cfg_ini: Handle to struct hdd_config
  *
  * Return: None
  */
-#ifdef FEATURE_WLAN_AUTO_SHUTDOWN
 static void hdd_disable_auto_shutdown(struct hdd_config *cfg_ini)
 {
 	cfg_ini->wlan_auto_shutdown = 0;
 }
+
+/**
+ * hdd_restore_auto_shutdown() - Restore auto_shutdown configuration.
+ * @cfg_ini: Handle to struct hdd_config
+ *
+ * Return: None
+ */
+static void hdd_restore_auto_shutdown(struct hdd_context *hdd_ctx)
+{
+	struct hdd_config *cfg_ini = hdd_ctx->config;
+
+	cfg_ini->wlan_auto_shutdown = cfg_get(hdd_ctx->psoc,
+					      CFG_WLAN_AUTO_SHUTDOWN);
+}
 #else
 static void hdd_disable_auto_shutdown(struct hdd_config *cfg_ini)
 {
 }
+
+static void hdd_restore_auto_shutdown(struct hdd_context *hdd_ctx)
+{
+}
 #endif
 
+void hdd_restore_all_ps(struct hdd_context *hdd_ctx)
+{
+	/*
+	 * imps/bmps configuration will be restored in driver mode change
+	 * sequence as part of hdd_wlan_start_modules
+	 */
+
+	hdd_restore_runtime_pm(hdd_ctx);
+	hdd_restore_auto_shutdown(hdd_ctx);
+}
+
 void hdd_override_all_ps(struct hdd_context *hdd_ctx)
 {
 	struct hdd_config *cfg_ini = hdd_ctx->config;

core/hdd/src/wlan_hdd_main.c

@@ -3883,6 +3883,10 @@ int hdd_wlan_start_modules(struct hdd_context *hdd_ctx, bool reinit)
 			break;
 		}
 
+		/* Override PS params for monitor mode */
+		if (hdd_get_conparam() == QDF_GLOBAL_MONITOR_MODE)
+			hdd_override_all_ps(hdd_ctx);
+
 		ret = hdd_configure_cds(hdd_ctx);
 		if (ret) {
 			hdd_err("Failed to Enable cds modules; errno: %d", ret);
@@ -10735,9 +10739,6 @@ static void hdd_override_ini_config(struct hdd_context *hdd_ctx)
 		hdd_ctx->config->action_oui_enable = 0;
 		hdd_err("Ignore action oui ini, since no action_oui component");
 	}
-
-	if (QDF_GLOBAL_MONITOR_MODE == cds_get_conparam())
-		hdd_override_all_ps(hdd_ctx);
 }
 
 #ifdef ENABLE_MTRACE_LOG
@@ -13201,6 +13202,10 @@ int hdd_wlan_stop_modules(struct hdd_context *hdd_ctx, bool ftm_mode)
 	case DRIVER_MODULES_ENABLED:
 		hdd_debug("Wlan transitioning (CLOSED <- ENABLED)");
 
+		/* Restore PS params for monitor mode */
+		if (hdd_get_conparam() == QDF_GLOBAL_MONITOR_MODE)
+			hdd_restore_all_ps(hdd_ctx);
+
 		if (hdd_get_conparam() == QDF_GLOBAL_FTM_MODE) {
 			hdd_disable_power_management(hdd_ctx);
 			break;