From 9c0ec6c2d868b753f22096c7515bbcdad3478154 Mon Sep 17 00:00:00 2001
From: Manoj Ekbote <mekbote@codeaurora.org>
Date: Tue, 29 Oct 2019 23:05:09 -0700
Subject: [PATCH] qcacmn: Add API to allow WMI commands

Add API to restart sending WMI commands after they have been
stopped using wmi_stop() API.

Change-Id: Id65e5d1310cd7076ca47c6e7e19221492c10a868
---
 wmi/inc/wmi_unified_api.h |  8 ++++++++
 wmi/src/wmi_unified.c     | 18 +++++++++++++++++-
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/wmi/inc/wmi_unified_api.h b/wmi/inc/wmi_unified_api.h
index dafb2e638e04..74d9b60ca88b 100644
--- a/wmi/inc/wmi_unified_api.h
+++ b/wmi/inc/wmi_unified_api.h
@@ -442,6 +442,14 @@ void wmi_set_tgt_assert(wmi_unified_t wmi_handle, bool val);
 int
 wmi_stop(wmi_unified_t wmi_handle);
 
+/**
+ * generic function to start unified WMI command
+ * @param wmi_handle      : handle to WMI.
+ * @return 0  on success and -ve on failure.
+ */
+int
+wmi_start(wmi_unified_t wmi_handle);
+
 /**
  * API to flush all the previous packets  associated with the wmi endpoint
  *
diff --git a/wmi/src/wmi_unified.c b/wmi/src/wmi_unified.c
index cdb39a8fed60..f509dfa64e41 100644
--- a/wmi/src/wmi_unified.c
+++ b/wmi/src/wmi_unified.c
@@ -1770,7 +1770,8 @@ QDF_STATUS wmi_unified_cmd_send_fl(wmi_unified_t wmi_handle, wmi_buf_t buf,
 	}
 
 	if (wmi_handle->wmi_stopinprogress) {
-		wmi_nofl_err("%s:%d, WMI stop in progress", func, line);
+		wmi_nofl_err("%s:%d, WMI stop in progress, wmi_handle:%pK",
+			     func, line, wmi_handle);
 		return QDF_STATUS_E_INVAL;
 	}
 
@@ -3129,6 +3130,21 @@ wmi_stop(wmi_unified_t wmi_handle)
 	return 0;
 }
 
+/**
+ * wmi_start() - generic function to allow unified WMI command
+ * @wmi_handle: handle to WMI.
+ *
+ * @Return: success always.
+ */
+int
+wmi_start(wmi_unified_t wmi_handle)
+{
+	QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_INFO,
+		  "WMI Start");
+	wmi_handle->wmi_stopinprogress = 0;
+	return 0;
+}
+
 /**
  * API to flush all the previous packets  associated with the wmi endpoint
  *