qcacmn: Add debug log to print link vote id

Add debug log to print details about the link vote id.

Change-Id: I2e89a3d6f06a0f3ec38ea9e8345d854553dbe86d
CRs-Fixed: 2964961

htc/htc.c

@@ -322,6 +322,70 @@ void htc_update_rx_bundle_stats(void *ctx, uint8_t no_of_pkt_in_bundle)
 }
 #endif
 
+#ifdef WLAN_DEBUG_LINK_VOTE
+static qdf_atomic_t htc_link_vote_ids[HTC_LINK_VOTE_INVALID_MAX_USER_ID];
+
+static void htc_init_link_vote_ids(void)
+{
+	uint32_t i;
+
+	for (i = HTC_LINK_VOTE_INVALID_MIN_USER_ID;
+	     i < HTC_LINK_VOTE_INVALID_MAX_USER_ID; i++)
+		qdf_atomic_init(&htc_link_vote_ids[i]);
+}
+
+void htc_log_link_user_votes(void)
+{
+	uint32_t i;
+	uint32_t link_vote;
+
+	for (i = HTC_LINK_VOTE_INVALID_MIN_USER_ID + 1;
+	     i < HTC_LINK_VOTE_INVALID_MAX_USER_ID; i++) {
+		link_vote = qdf_atomic_read(&htc_link_vote_ids[i]);
+		if (link_vote)
+			HTC_NOFL_INFO("Link vote %d user id: %d",
+				      link_vote, i);
+	}
+}
+
+void htc_vote_link_down(HTC_HANDLE htc_handle, enum htc_link_vote_user_id id)
+{
+	HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(htc_handle);
+
+	if (!target->hif_dev)
+		return;
+	if (id >= HTC_LINK_VOTE_INVALID_MAX_USER_ID ||
+	    id <= HTC_LINK_VOTE_INVALID_MIN_USER_ID) {
+		HTC_ERROR("invalid id: %d", id);
+		return;
+	}
+
+	hif_vote_link_down(target->hif_dev);
+	qdf_atomic_dec(&htc_link_vote_ids[id]);
+}
+
+void htc_vote_link_up(HTC_HANDLE htc_handle, enum htc_link_vote_user_id id)
+{
+	HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(htc_handle);
+
+	if (!target->hif_dev)
+		return;
+	if (id >= HTC_LINK_VOTE_INVALID_MAX_USER_ID ||
+	    id <= HTC_LINK_VOTE_INVALID_MIN_USER_ID) {
+		HTC_ERROR("invalid link vote user id: %d", id);
+		return;
+	}
+
+	hif_vote_link_up(target->hif_dev);
+	qdf_atomic_inc(&htc_link_vote_ids[id]);
+}
+#else
+static inline
+void htc_init_link_vote_ids(void)
+{
+}
+#endif
+
 /* registered target arrival callback from the HIF layer */
 HTC_HANDLE htc_create(void *ol_sc, struct htc_init_info *pInfo,
 			qdf_device_t osdev, uint32_t con_mode)
@@ -421,6 +485,8 @@ HTC_HANDLE htc_create(void *ol_sc, struct htc_init_info *pInfo,
 
 	htc_hang_event_notifier_register(target);
 
+	htc_init_link_vote_ids();
+
 	return (HTC_HANDLE) target;
 }
 
@@ -1126,42 +1192,6 @@ void htc_clear_bundle_stats(HTC_HANDLE HTCHandle)
 }
 #endif
 
-/**
- * htc_vote_link_down - API to vote for link down
- * @htc_handle: HTC handle
- *
- * API for upper layers to call HIF to vote for link down
- *
- * Return: void
- */
-void htc_vote_link_down(HTC_HANDLE htc_handle)
-{
-	HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(htc_handle);
-
-	if (!target->hif_dev)
-		return;
-
-	hif_vote_link_down(target->hif_dev);
-}
-
-/**
- * htc_vote_link_up - API to vote for link up
- * @htc_handle: HTC Handle
- *
- * API for upper layers to call HIF to vote for link up
- *
- * Return: void
- */
-void htc_vote_link_up(HTC_HANDLE htc_handle)
-{
-	HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(htc_handle);
-
-	if (!target->hif_dev)
-		return;
-
-	hif_vote_link_up(target->hif_dev);
-}
-
 /**
  * htc_can_suspend_link - API to query HIF for link status
  * @htc_handle: HTC Handle

htc/htc_api.h

@@ -388,6 +388,26 @@ struct htc_endpoint_stats {
 	uint32_t RxAllocThreshBytes;
 };
 
+/**
+ * htc_link_vote_user_id - user ids for each link vote type
+ * @HTC_LINK_VOTE_INVALID_MIN_USER_ID: min user id
+ * @HTC_LINK_VOTE_SAP_USER_ID: sap user id
+ * @HTC_LINK_VOTE_GO_USER_ID: go user id
+ * @HTC_LINK_VOTE_NDP_USER_ID: ndp user id
+ * @HTC_LINK_VOTE_SAP_DFS_USER_ID: sap dfs user id
+ * @HTC_LINK_VOTE_STA_USER_ID: sta user id
+ * @HTC_LINK_VOTE_INVALID_MAX_USER_ID: max user id
+ */
+enum htc_link_vote_user_id {
+	HTC_LINK_VOTE_INVALID_MIN_USER_ID = 0,
+	HTC_LINK_VOTE_SAP_USER_ID = 1,
+	HTC_LINK_VOTE_GO_USER_ID = 2,
+	HTC_LINK_VOTE_NDP_USER_ID = 3,
+	HTC_LINK_VOTE_SAP_DFS_USER_ID = 4,
+	HTC_LINK_VOTE_STA_USER_ID = 5,
+	HTC_LINK_VOTE_INVALID_MAX_USER_ID
+};
+
 /* ------ Function Prototypes ------ */
 /**
  * htc_create - Create an instance of HTC over the underlying HIF device
@@ -758,8 +778,7 @@ void htc_global_credit_flow_enable(void);
 
 /* Disable ASPM : Disable PCIe low power */
 bool htc_can_suspend_link(HTC_HANDLE HTCHandle);
-void htc_vote_link_down(HTC_HANDLE HTCHandle);
-void htc_vote_link_up(HTC_HANDLE HTCHandle);
+
 #ifdef IPA_OFFLOAD
 void htc_ipa_get_ce_resource(HTC_HANDLE htc_handle,
 			     qdf_shared_mem_t **ce_sr,
@@ -811,6 +830,55 @@ int32_t htc_dec_return_runtime_cnt(HTC_HANDLE htc)
 }
 #endif
 
+#ifdef WLAN_DEBUG_LINK_VOTE
+/**
+ * htc_log_link_user_votes - API to log link user votes
+ *
+ * API to log the link user votes
+ *
+ * Return: void
+ */
+void htc_log_link_user_votes(void);
+
+/**
+ * htc_vote_link_down - API to vote for link down
+ * @htc_handle: HTC handle
+ * @id: PCIe link vote user id
+ *
+ * API for upper layers to call HIF to vote for link down
+ *
+ * Return: void
+ */
+void htc_vote_link_down(HTC_HANDLE htc_handle, enum htc_link_vote_user_id id);
+
+/**
+ * htc_vote_link_up - API to vote for link up
+ * @htc_handle: HTC Handle
+ * @id: PCIe link vote user id
+ *
+ * API for upper layers to call HIF to vote for link up
+ *
+ * Return: void
+ */
+void htc_vote_link_up(HTC_HANDLE htc_handle, enum htc_link_vote_user_id id);
+
+#else
+static inline
+void htc_log_link_user_votes(void)
+{
+}
+
+static inline
+void htc_vote_link_down(HTC_HANDLE htc_handle, enum htc_link_vote_user_id id)
+{
+}
+
+static inline
+void htc_vote_link_up(HTC_HANDLE htc_handle, enum htc_link_vote_user_id id)
+{
+}
+#endif
+
 /**
   * htc_set_async_ep() - set async HTC end point
   *           user should call this function after htc_connect_service before

htc/htc_debug.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2014 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2013-2014, 2021 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -38,4 +38,6 @@
 	QDF_TRACE(QDF_MODULE_ID_HTC, QDF_TRACE_LEVEL_INFO, ## args)
 #define HTC_TRACE(args ...) \
 	QDF_TRACE(QDF_MODULE_ID_HTC, QDF_TRACE_LEVEL_DEBUG, ## args)
+#define HTC_NOFL_INFO(args...) \
+	QDF_TRACE_INFO_NO_FL(QDF_MODULE_ID_HTC, ## args)
 #endif /*HTC_DEBUG_H_ */

target_if/mlme/psoc/src/target_if_psoc_wake_lock.c

@@ -166,7 +166,7 @@ target_if_vote_for_link_down(struct wlan_objmgr_psoc *psoc,
 	}
 
 	if (psoc_wakelock->is_link_up) {
-		htc_vote_link_down(htc_handle);
+		htc_vote_link_down(htc_handle, HTC_LINK_VOTE_SAP_DFS_USER_ID);
 		qdf_runtime_pm_allow_suspend(&psoc_wakelock->prevent_runtime_lock);
 		psoc_wakelock->is_link_up = false;
 	}
@@ -185,7 +185,7 @@ target_if_vote_for_link_up(struct wlan_objmgr_psoc *psoc,
 	}
 
 	if (!psoc_wakelock->is_link_up) {
-		htc_vote_link_up(htc_handle);
+		htc_vote_link_up(htc_handle, HTC_LINK_VOTE_SAP_DFS_USER_ID);
 		qdf_runtime_pm_prevent_suspend(&psoc_wakelock->prevent_runtime_lock);
 		psoc_wakelock->is_link_up = true;
 	}