Return-Path: From: Andrzej Kaczmarek To: CC: Andrzej Kaczmarek Subject: [PATCH v2 06/11] android/hal-audio: Add support to resume output stream Date: Wed, 15 Jan 2014 19:03:52 +0100 Message-ID: <1389809037-11575-7-git-send-email-andrzej.kaczmarek@tieto.com> In-Reply-To: <1389809037-11575-1-git-send-email-andrzej.kaczmarek@tieto.com> References: <1389809037-11575-1-git-send-email-andrzej.kaczmarek@tieto.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-bluetooth-owner@vger.kernel.org List-ID: 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 2a6b6c4..1de8830 100644 --- a/android/hal-audio.c +++ b/android/hal-audio.c @@ -435,6 +435,21 @@ 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]; @@ -473,8 +488,26 @@ 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