[PATCH v2 1/9] android: Add MTU data to Open Stream Audio IPC
flat view
STALE4646d
From: Andrzej Kaczmarek <hidden>
Date: 2014-01-20 14:58:55
Subsystem:
the rest · Maintainer:
Linus Torvalds
Revision v2 of 3 in this series.
Revisions (3)
- v1 [diff vs current]
- v2 current
- v3 [diff vs current]
MTU value for transport channel is sent in Open Stream response, which is required to calculate number of frames which can be packed into single media packet. This is to avoid including GPLv2 licensed headers in Audio HAL implementation. --- android/a2dp.c | 8 ++++++-- android/audio-msg.h | 1 + 2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/android/a2dp.c b/android/a2dp.c
index 8ec03c8..5562ba5 100644
--- a/android/a2dp.c
+++ b/android/a2dp.c@@ -1297,6 +1297,7 @@ static void bt_stream_open(const void *buf, uint16_t len) struct audio_rsp_open_stream *rsp; struct a2dp_setup *setup; int fd; + uint16_t omtu; DBG("");
@@ -1307,14 +1308,17 @@ static void bt_stream_open(const void *buf, uint16_t len) return; } - if (!avdtp_stream_get_transport(setup->stream, &fd, NULL, NULL, NULL)) { + if (!avdtp_stream_get_transport(setup->stream, &fd, NULL, &omtu, + NULL)) { error("avdtp_stream_get_transport: failed"); audio_ipc_send_rsp(AUDIO_OP_OPEN_STREAM, AUDIO_STATUS_FAILED); return; } - len = sizeof(struct audio_preset) + setup->preset->len; + len = sizeof(struct audio_rsp_open_stream) + + sizeof(struct audio_preset) + setup->preset->len; rsp = g_malloc0(len); + rsp->mtu = omtu; rsp->preset->len = setup->preset->len; memcpy(rsp->preset->data, setup->preset->data, setup->preset->len);
diff --git a/android/audio-msg.h b/android/audio-msg.h
index 8f03274..17cde09 100644
--- a/android/audio-msg.h
+++ b/android/audio-msg.h@@ -63,6 +63,7 @@ struct audio_cmd_open_stream { } __attribute__((packed)); struct audio_rsp_open_stream { + uint16_t mtu; struct audio_preset preset[0]; } __attribute__((packed));
--
1.8.5.2