ASoC: ABE HAL: Add API to check ABE activity

Introduce a new API in order to check if any ABE ports
are running.

Change-Id: I920548dfcbe95125fc30b871ff38ab9b550e8e7a
Signed-off-by: Sebastien Guiriec <s-guiriec@ti.com>

2 files changed, 34 insertions, 0 deletions

diff --git a/sound/soc/omap/abe/abe_api.h b/sound/soc/omap/abe/abe_api.h
index c0e27c29ea1b..a6b814879e66 100644
--- a/sound/soc/omap/abe/abe_api.h
+++ b/sound/soc/omap/abe/abe_api.h
@@ -475,4 +475,14 @@ abehal_status abe_remote_debugger_interface(u32 n, u8 *p);
  *
  */
 abehal_status abe_enable_test_pattern(u32 smem_id, u32 on_off);
+/**
+ * abe_check_activity - Check if some ABE activity.
+ *
+ * Check if any ABE ports are running.
+ * return 1: still activity on ABE
+ * return 0: no more activity on ABE. Event generator can be stopped
+ *
+ */
+u32 abe_check_activity(void);
+
 #endif/* _ABE_API_H_ */
diff --git a/sound/soc/omap/abe/abe_lib.c b/sound/soc/omap/abe/abe_lib.c
index b63d6f54d263..c9e0a8c1f2b2 100644
--- a/sound/soc/omap/abe/abe_lib.c
+++ b/sound/soc/omap/abe/abe_lib.c
@@ -522,3 +522,27 @@ void abe_decide_main_port(u32 id)
 		abe_select_main_port(id);
 	}
 }
+/**
+ * abe_check_activity - Check if some ABE activity.
+ *
+ * Check if any ABE ports are running.
+ * return 1: still activity on ABE
+ * return 0: no more activity on ABE. Event generator can be stopped
+ *
+ */
+u32 abe_check_activity(void)
+{
+	u32 i;
+	u32 ret;
+
+	ret = 0;
+	for (i = 0; i < (LAST_PORT_ID - 1); i++) {
+		if (abe_port[abe_port_priority[i]].status ==
+				OMAP_ABE_PORT_ACTIVITY_RUNNING)
+			break;
+	}
+	if (i < (LAST_PORT_ID - 1))
+		ret = 1;
+
+	return ret;
+}