This patch adds support to resume output stream via Audio IPC.
Stream is automatically resumed on first write when stream is in
standby state.
---
android/hal-audio.c | 37 +++++++++++++++++++++++++++++++++++--
1 file changed, 35 insertions(+), 2 deletions(-)
diff --git a/android/hal-audio.c b/android/hal-audio.c
index ebb742c..3c799e3 100644
--- a/android/hal-audio.c
+++ b/android/hal-audio.c
@@ -415,6 +415,21 @@ static int ipc_close_stream_cmd(uint8_t endpoint_id)
return result;
}
+static int ipc_resume_stream_cmd(uint8_t endpoint_id)
+{
+ struct audio_cmd_resume_stream cmd;
+ int result;
+
+ DBG("");
+
+ cmd.id = endpoint_id;
+
+ result = audio_ipc_cmd(AUDIO_SERVICE_ID, AUDIO_OP_RESUME_STREAM,
+ sizeof(cmd), &cmd, NULL, NULL, NULL);
+
+ return result;
+}
+
static int register_endpoints(void)
{
struct audio_endpoint *ep = &audio_endpoints[0];
@@ -453,8 +468,26 @@ static void unregister_endpoints(void)
static ssize_t out_write(struct audio_stream_out *stream, const void *buffer,
size_t bytes)
{
- DBG("");
- return -ENOSYS;
+ struct a2dp_stream_out *out = (struct a2dp_stream_out *) stream;
+
+ /* We can auto-start only from standby */
+ if (out->audio_state == AUDIO_A2DP_STATE_STANDBY) {
+ DBG("stream in standby, auto-start");
+
+ if (ipc_resume_stream_cmd(out->ep->id) != AUDIO_STATUS_SUCCESS)
+ return -1;
+
+ out->audio_state = AUDIO_A2DP_STATE_STARTED;
+ }
+
+ if (out->audio_state != AUDIO_A2DP_STATE_STARTED) {
+ DBG("stream not started");
+ return -1;
+ }
+
+ /* TODO: encode data using codec */
+
+ return bytes;
}
static uint32_t out_get_sample_rate(const struct audio_stream *stream)
--
1.8.5.2
--
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