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bluez/audio/a2dp.c
Mikel Astiz 966561e04a a2dp: return NotSupported error if no server found 
With both sink and sources disabled, the A2DP server is not even
registered in audio_manager_init. When trying to register the endpoint,
this should result in the same error as if the server existed but the
profile was disabled.
2012-02-14 12:47:57 +02:00

2382 lines
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/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2006-2010 Nokia Corporation
* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
* Copyright (C) 2011 BMW Car IT GmbH. All rights reserved.
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <errno.h>
#include <dbus/dbus.h>
#include <glib.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/sdp.h>
#include <bluetooth/sdp_lib.h>
#include "glib-compat.h"
#include "log.h"
#include "device.h"
#include "manager.h"
#include "avdtp.h"
#include "sink.h"
#include "source.h"
#include "unix.h"
#include "a2dp.h"
#include "sdpd.h"
/* The duration that streams without users are allowed to stay in
* STREAMING state. */
#define SUSPEND_TIMEOUT 5
#define RECONFIGURE_TIMEOUT 500
#ifndef MIN
# define MIN(x, y) ((x) < (y) ? (x) : (y))
#endif
#ifndef MAX
# define MAX(x, y) ((x) > (y) ? (x) : (y))
#endif
struct a2dp_sep {
struct a2dp_server *server;
struct a2dp_endpoint *endpoint;
uint8_t type;
uint8_t codec;
struct avdtp_local_sep *lsep;
struct avdtp *session;
struct avdtp_stream *stream;
guint suspend_timer;
gboolean delay_reporting;
gboolean locked;
gboolean suspending;
gboolean starting;
void *user_data;
GDestroyNotify destroy;
};
struct a2dp_setup_cb {
struct a2dp_setup *setup;
a2dp_select_cb_t select_cb;
a2dp_config_cb_t config_cb;
a2dp_stream_cb_t resume_cb;
a2dp_stream_cb_t suspend_cb;
guint source_id;
void *user_data;
unsigned int id;
};
struct a2dp_setup {
struct audio_device *dev;
struct avdtp *session;
struct a2dp_sep *sep;
struct avdtp_remote_sep *rsep;
struct avdtp_stream *stream;
struct avdtp_error *err;
avdtp_set_configuration_cb setconf_cb;
GSList *caps;
gboolean reconfigure;
gboolean start;
GSList *cb;
int ref;
};
static DBusConnection *connection = NULL;
struct a2dp_server {
bdaddr_t src;
GSList *sinks;
GSList *sources;
uint32_t source_record_id;
uint32_t sink_record_id;
uint16_t version;
gboolean sink_enabled;
gboolean source_enabled;
};
static GSList *servers = NULL;
static GSList *setups = NULL;
static unsigned int cb_id = 0;
static struct a2dp_setup *setup_ref(struct a2dp_setup *setup)
{
setup->ref++;
DBG("%p: ref=%d", setup, setup->ref);
return setup;
}
static struct audio_device *a2dp_get_dev(struct avdtp *session)
{
bdaddr_t src, dst;
avdtp_get_peers(session, &src, &dst);
return manager_find_device(NULL, &src, &dst, NULL, FALSE);
}
static struct a2dp_setup *setup_new(struct avdtp *session)
{
struct audio_device *dev;
struct a2dp_setup *setup;
dev = a2dp_get_dev(session);
if (!dev) {
error("Unable to create setup");
return NULL;
}
setup = g_new0(struct a2dp_setup, 1);
setup->session = avdtp_ref(session);
setup->dev = a2dp_get_dev(session);
setups = g_slist_append(setups, setup);
return setup;
}
static void setup_free(struct a2dp_setup *s)
{
DBG("%p", s);
setups = g_slist_remove(setups, s);
if (s->session)
avdtp_unref(s->session);
g_slist_free_full(s->cb, g_free);
g_slist_free_full(s->caps, g_free);
g_free(s);
}
static void setup_unref(struct a2dp_setup *setup)
{
setup->ref--;
DBG("%p: ref=%d", setup, setup->ref);
if (setup->ref > 0)
return;
setup_free(setup);
}
static struct a2dp_setup_cb *setup_cb_new(struct a2dp_setup *setup)
{
struct a2dp_setup_cb *cb;
cb = g_new0(struct a2dp_setup_cb, 1);
cb->setup = setup;
cb->id = ++cb_id;
setup->cb = g_slist_append(setup->cb, cb);
return cb;
}
static void setup_cb_free(struct a2dp_setup_cb *cb)
{
struct a2dp_setup *setup = cb->setup;
if (cb->source_id)
g_source_remove(cb->source_id);
setup->cb = g_slist_remove(setup->cb, cb);
setup_unref(cb->setup);
g_free(cb);
}
static void finalize_setup_errno(struct a2dp_setup *s, int err,
GSourceFunc cb1, ...)
{
GSourceFunc finalize;
va_list args;
struct avdtp_error avdtp_err;
if (err < 0) {
avdtp_error_init(&avdtp_err, AVDTP_ERRNO, -err);
s->err = &avdtp_err;
}
va_start(args, cb1);
finalize = cb1;
setup_ref(s);
while (finalize != NULL) {
finalize(s);
finalize = va_arg(args, GSourceFunc);
}
setup_unref(s);
va_end(args);
}
static gboolean finalize_config(gpointer data)
{
struct a2dp_setup *s = data;
GSList *l;
struct avdtp_stream *stream = s->err ? NULL : s->stream;
for (l = s->cb; l != NULL; ) {
struct a2dp_setup_cb *cb = l->data;
l = l->next;
if (!cb->config_cb)
continue;
cb->config_cb(s->session, s->sep, stream, s->err,
cb->user_data);
setup_cb_free(cb);
}
return FALSE;
}
static gboolean finalize_resume(gpointer data)
{
struct a2dp_setup *s = data;
GSList *l;
for (l = s->cb; l != NULL; ) {
struct a2dp_setup_cb *cb = l->data;
l = l->next;
if (!cb->resume_cb)
continue;
cb->resume_cb(s->session, s->err, cb->user_data);
setup_cb_free(cb);
}
return FALSE;
}
static gboolean finalize_suspend(gpointer data)
{
struct a2dp_setup *s = data;
GSList *l;
for (l = s->cb; l != NULL; ) {
struct a2dp_setup_cb *cb = l->data;
l = l->next;
if (!cb->suspend_cb)
continue;
cb->suspend_cb(s->session, s->err, cb->user_data);
setup_cb_free(cb);
}
return FALSE;
}
static void finalize_select(struct a2dp_setup *s)
{
GSList *l;
for (l = s->cb; l != NULL; ) {
struct a2dp_setup_cb *cb = l->data;
l = l->next;
if (!cb->select_cb)
continue;
cb->select_cb(s->session, s->sep, s->caps, cb->user_data);
setup_cb_free(cb);
}
}
static struct a2dp_setup *find_setup_by_session(struct avdtp *session)
{
GSList *l;
for (l = setups; l != NULL; l = l->next) {
struct a2dp_setup *setup = l->data;
if (setup->session == session)
return setup;
}
return NULL;
}
static struct a2dp_setup *a2dp_setup_get(struct avdtp *session)
{
struct a2dp_setup *setup;
setup = find_setup_by_session(session);
if (!setup) {
setup = setup_new(session);
if (!setup)
return NULL;
}
return setup_ref(setup);
}
static struct a2dp_setup *find_setup_by_dev(struct audio_device *dev)
{
GSList *l;
for (l = setups; l != NULL; l = l->next) {
struct a2dp_setup *setup = l->data;
if (setup->dev == dev)
return setup;
}
return NULL;
}
static void stream_state_changed(struct avdtp_stream *stream,
avdtp_state_t old_state,
avdtp_state_t new_state,
struct avdtp_error *err,
void *user_data)
{
struct a2dp_sep *sep = user_data;
if (new_state != AVDTP_STATE_IDLE)
return;
if (sep->suspend_timer) {
g_source_remove(sep->suspend_timer);
sep->suspend_timer = 0;
}
if (sep->session) {
avdtp_unref(sep->session);
sep->session = NULL;
}
sep->stream = NULL;
if (sep->endpoint && sep->endpoint->clear_configuration)
sep->endpoint->clear_configuration(sep, sep->user_data);
}
static gboolean auto_config(gpointer data)
{
struct a2dp_setup *setup = data;
struct avdtp_error *err = NULL;
/* Check if configuration was aborted */
if (setup->sep->stream == NULL)
return FALSE;
if (setup->err != NULL) {
err = setup->err;
goto done;
}
avdtp_stream_add_cb(setup->session, setup->stream,
stream_state_changed, setup->sep);
if (setup->sep->type == AVDTP_SEP_TYPE_SOURCE)
sink_new_stream(setup->dev, setup->session, setup->stream);
else
source_new_stream(setup->dev, setup->session, setup->stream);
done:
if (setup->setconf_cb)
setup->setconf_cb(setup->session, setup->stream, setup->err);
finalize_config(setup);
if (err)
g_free(err);
setup_unref(setup);
return FALSE;
}
static gboolean sbc_setconf_ind(struct avdtp *session,
struct avdtp_local_sep *sep,
struct avdtp_stream *stream,
GSList *caps,
avdtp_set_configuration_cb cb,
void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
struct a2dp_setup *setup;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Set_Configuration_Ind", sep);
else
DBG("Source %p: Set_Configuration_Ind", sep);
setup = a2dp_setup_get(session);
if (!setup)
return FALSE;
a2dp_sep->stream = stream;
setup->sep = a2dp_sep;
setup->stream = stream;
setup->setconf_cb = cb;
/* Check valid settings */
for (; caps != NULL; caps = g_slist_next(caps)) {
struct avdtp_service_capability *cap = caps->data;
struct avdtp_media_codec_capability *codec_cap;
struct sbc_codec_cap *sbc_cap;
if (cap->category == AVDTP_DELAY_REPORTING &&
!a2dp_sep->delay_reporting) {
setup->err = g_new(struct avdtp_error, 1);
avdtp_error_init(setup->err, AVDTP_DELAY_REPORTING,
AVDTP_UNSUPPORTED_CONFIGURATION);
goto done;
}
if (cap->category != AVDTP_MEDIA_CODEC)
continue;
if (cap->length < sizeof(struct sbc_codec_cap))
continue;
codec_cap = (void *) cap->data;
if (codec_cap->media_codec_type != A2DP_CODEC_SBC)
continue;
sbc_cap = (void *) codec_cap;
if (sbc_cap->min_bitpool < MIN_BITPOOL ||
sbc_cap->max_bitpool > MAX_BITPOOL) {
setup->err = g_new(struct avdtp_error, 1);
avdtp_error_init(setup->err, AVDTP_MEDIA_CODEC,
AVDTP_UNSUPPORTED_CONFIGURATION);
goto done;
}
}
done:
g_idle_add(auto_config, setup);
return TRUE;
}
static gboolean sbc_getcap_ind(struct avdtp *session, struct avdtp_local_sep *sep,
gboolean get_all, GSList **caps, uint8_t *err,
void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
struct avdtp_service_capability *media_transport, *media_codec;
struct sbc_codec_cap sbc_cap;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Get_Capability_Ind", sep);
else
DBG("Source %p: Get_Capability_Ind", sep);
*caps = NULL;
media_transport = avdtp_service_cap_new(AVDTP_MEDIA_TRANSPORT,
NULL, 0);
*caps = g_slist_append(*caps, media_transport);
memset(&sbc_cap, 0, sizeof(struct sbc_codec_cap));
sbc_cap.cap.media_type = AVDTP_MEDIA_TYPE_AUDIO;
sbc_cap.cap.media_codec_type = A2DP_CODEC_SBC;
sbc_cap.frequency = ( SBC_SAMPLING_FREQ_48000 |
SBC_SAMPLING_FREQ_44100 |
SBC_SAMPLING_FREQ_32000 |
SBC_SAMPLING_FREQ_16000 );
sbc_cap.channel_mode = ( SBC_CHANNEL_MODE_JOINT_STEREO |
SBC_CHANNEL_MODE_STEREO |
SBC_CHANNEL_MODE_DUAL_CHANNEL |
SBC_CHANNEL_MODE_MONO );
sbc_cap.block_length = ( SBC_BLOCK_LENGTH_16 |
SBC_BLOCK_LENGTH_12 |
SBC_BLOCK_LENGTH_8 |
SBC_BLOCK_LENGTH_4 );
sbc_cap.subbands = ( SBC_SUBBANDS_8 | SBC_SUBBANDS_4 );
sbc_cap.allocation_method = ( SBC_ALLOCATION_LOUDNESS |
SBC_ALLOCATION_SNR );
sbc_cap.min_bitpool = MIN_BITPOOL;
sbc_cap.max_bitpool = MAX_BITPOOL;
media_codec = avdtp_service_cap_new(AVDTP_MEDIA_CODEC, &sbc_cap,
sizeof(sbc_cap));
*caps = g_slist_append(*caps, media_codec);
if (get_all) {
struct avdtp_service_capability *delay_reporting;
delay_reporting = avdtp_service_cap_new(AVDTP_DELAY_REPORTING,
NULL, 0);
*caps = g_slist_append(*caps, delay_reporting);
}
return TRUE;
}
static gboolean mpeg_setconf_ind(struct avdtp *session,
struct avdtp_local_sep *sep,
struct avdtp_stream *stream,
GSList *caps,
avdtp_set_configuration_cb cb,
void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
struct a2dp_setup *setup;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Set_Configuration_Ind", sep);
else
DBG("Source %p: Set_Configuration_Ind", sep);
setup = a2dp_setup_get(session);
if (!setup)
return FALSE;
a2dp_sep->stream = stream;
setup->sep = a2dp_sep;
setup->stream = stream;
setup->setconf_cb = cb;
for (; caps != NULL; caps = g_slist_next(caps)) {
struct avdtp_service_capability *cap = caps->data;
if (cap->category == AVDTP_DELAY_REPORTING &&
!a2dp_sep->delay_reporting) {
setup->err = g_new(struct avdtp_error, 1);
avdtp_error_init(setup->err, AVDTP_DELAY_REPORTING,
AVDTP_UNSUPPORTED_CONFIGURATION);
goto done;
}
}
done:
g_idle_add(auto_config, setup);
return TRUE;
}
static gboolean mpeg_getcap_ind(struct avdtp *session,
struct avdtp_local_sep *sep,
gboolean get_all,
GSList **caps, uint8_t *err, void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
struct avdtp_service_capability *media_transport, *media_codec;
struct mpeg_codec_cap mpeg_cap;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Get_Capability_Ind", sep);
else
DBG("Source %p: Get_Capability_Ind", sep);
*caps = NULL;
media_transport = avdtp_service_cap_new(AVDTP_MEDIA_TRANSPORT,
NULL, 0);
*caps = g_slist_append(*caps, media_transport);
memset(&mpeg_cap, 0, sizeof(struct mpeg_codec_cap));
mpeg_cap.cap.media_type = AVDTP_MEDIA_TYPE_AUDIO;
mpeg_cap.cap.media_codec_type = A2DP_CODEC_MPEG12;
mpeg_cap.frequency = ( MPEG_SAMPLING_FREQ_48000 |
MPEG_SAMPLING_FREQ_44100 |
MPEG_SAMPLING_FREQ_32000 |
MPEG_SAMPLING_FREQ_24000 |
MPEG_SAMPLING_FREQ_22050 |
MPEG_SAMPLING_FREQ_16000 );
mpeg_cap.channel_mode = ( MPEG_CHANNEL_MODE_JOINT_STEREO |
MPEG_CHANNEL_MODE_STEREO |
MPEG_CHANNEL_MODE_DUAL_CHANNEL |
MPEG_CHANNEL_MODE_MONO );
mpeg_cap.layer = ( MPEG_LAYER_MP3 | MPEG_LAYER_MP2 | MPEG_LAYER_MP1 );
mpeg_cap.bitrate = 0xFFFF;
media_codec = avdtp_service_cap_new(AVDTP_MEDIA_CODEC, &mpeg_cap,
sizeof(mpeg_cap));
*caps = g_slist_append(*caps, media_codec);
if (get_all) {
struct avdtp_service_capability *delay_reporting;
delay_reporting = avdtp_service_cap_new(AVDTP_DELAY_REPORTING,
NULL, 0);
*caps = g_slist_append(*caps, delay_reporting);
}
return TRUE;
}
static void endpoint_setconf_cb(struct a2dp_setup *setup, gboolean ret)
{
if (ret == FALSE) {
setup->err = g_new(struct avdtp_error, 1);
avdtp_error_init(setup->err, AVDTP_MEDIA_CODEC,
AVDTP_UNSUPPORTED_CONFIGURATION);
}
auto_config(setup);
}
static gboolean endpoint_setconf_ind(struct avdtp *session,
struct avdtp_local_sep *sep,
struct avdtp_stream *stream,
GSList *caps,
avdtp_set_configuration_cb cb,
void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
struct a2dp_setup *setup;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Set_Configuration_Ind", sep);
else
DBG("Source %p: Set_Configuration_Ind", sep);
setup = a2dp_setup_get(session);
if (!session)
return FALSE;
a2dp_sep->stream = stream;
setup->sep = a2dp_sep;
setup->stream = stream;
setup->setconf_cb = cb;
for (; caps != NULL; caps = g_slist_next(caps)) {
struct avdtp_service_capability *cap = caps->data;
struct avdtp_media_codec_capability *codec;
gboolean ret;
if (cap->category == AVDTP_DELAY_REPORTING &&
!a2dp_sep->delay_reporting) {
setup->err = g_new(struct avdtp_error, 1);
avdtp_error_init(setup->err, AVDTP_DELAY_REPORTING,
AVDTP_UNSUPPORTED_CONFIGURATION);
goto done;
}
if (cap->category != AVDTP_MEDIA_CODEC)
continue;
codec = (struct avdtp_media_codec_capability *) cap->data;
if (codec->media_codec_type != a2dp_sep->codec) {
setup->err = g_new(struct avdtp_error, 1);
avdtp_error_init(setup->err, AVDTP_MEDIA_CODEC,
AVDTP_UNSUPPORTED_CONFIGURATION);
goto done;
}
ret = a2dp_sep->endpoint->set_configuration(a2dp_sep,
setup->dev, codec->data,
cap->length - sizeof(*codec),
setup,
endpoint_setconf_cb,
a2dp_sep->user_data);
if (ret == 0)
return TRUE;
setup->err = g_new(struct avdtp_error, 1);
avdtp_error_init(setup->err, AVDTP_MEDIA_CODEC,
AVDTP_UNSUPPORTED_CONFIGURATION);
break;
}
done:
g_idle_add(auto_config, setup);
return TRUE;
}
static gboolean endpoint_getcap_ind(struct avdtp *session,
struct avdtp_local_sep *sep,
gboolean get_all, GSList **caps,
uint8_t *err, void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
struct avdtp_service_capability *media_transport, *media_codec;
struct avdtp_media_codec_capability *codec_caps;
uint8_t *capabilities;
size_t length;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Get_Capability_Ind", sep);
else
DBG("Source %p: Get_Capability_Ind", sep);
*caps = NULL;
media_transport = avdtp_service_cap_new(AVDTP_MEDIA_TRANSPORT,
NULL, 0);
*caps = g_slist_append(*caps, media_transport);
length = a2dp_sep->endpoint->get_capabilities(a2dp_sep, &capabilities,
a2dp_sep->user_data);
codec_caps = g_malloc0(sizeof(*codec_caps) + length);
codec_caps->media_type = AVDTP_MEDIA_TYPE_AUDIO;
codec_caps->media_codec_type = a2dp_sep->codec;
memcpy(codec_caps->data, capabilities, length);
media_codec = avdtp_service_cap_new(AVDTP_MEDIA_CODEC, codec_caps,
sizeof(*codec_caps) + length);
*caps = g_slist_append(*caps, media_codec);
g_free(codec_caps);
if (get_all) {
struct avdtp_service_capability *delay_reporting;
delay_reporting = avdtp_service_cap_new(AVDTP_DELAY_REPORTING,
NULL, 0);
*caps = g_slist_append(*caps, delay_reporting);
}
return TRUE;
}
static void endpoint_open_cb(struct a2dp_setup *setup, gboolean ret)
{
int err;
if (ret == FALSE) {
setup->stream = NULL;
finalize_setup_errno(setup, -EPERM, finalize_config, NULL);
return;
}
err = avdtp_open(setup->session, setup->stream);
if (err == 0)
return;
error("Error on avdtp_open %s (%d)", strerror(-err), -err);
setup->stream = NULL;
finalize_setup_errno(setup, err, finalize_config, NULL);
}
static void setconf_cfm(struct avdtp *session, struct avdtp_local_sep *sep,
struct avdtp_stream *stream,
struct avdtp_error *err, void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
struct a2dp_setup *setup;
struct audio_device *dev;
int ret;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Set_Configuration_Cfm", sep);
else
DBG("Source %p: Set_Configuration_Cfm", sep);
setup = find_setup_by_session(session);
if (err) {
if (setup) {
setup->err = err;
finalize_config(setup);
}
return;
}
avdtp_stream_add_cb(session, stream, stream_state_changed, a2dp_sep);
a2dp_sep->stream = stream;
if (!setup)
return;
dev = a2dp_get_dev(session);
/* Notify D-Bus interface of the new stream */
if (a2dp_sep->type == AVDTP_SEP_TYPE_SOURCE)
sink_new_stream(dev, session, setup->stream);
else
source_new_stream(dev, session, setup->stream);
/* Notify Endpoint */
if (a2dp_sep->endpoint) {
struct avdtp_service_capability *service;
struct avdtp_media_codec_capability *codec;
int err;
service = avdtp_stream_get_codec(stream);
codec = (struct avdtp_media_codec_capability *) service->data;
err = a2dp_sep->endpoint->set_configuration(a2dp_sep, dev,
codec->data, service->length -
sizeof(*codec),
setup,
endpoint_open_cb,
a2dp_sep->user_data);
if (err == 0)
return;
setup->stream = NULL;
finalize_setup_errno(setup, -EPERM, finalize_config, NULL);
return;
}
ret = avdtp_open(session, stream);
if (ret < 0) {
error("Error on avdtp_open %s (%d)", strerror(-ret), -ret);
setup->stream = NULL;
finalize_setup_errno(setup, ret, finalize_config, NULL);
}
}
static gboolean getconf_ind(struct avdtp *session, struct avdtp_local_sep *sep,
uint8_t *err, void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Get_Configuration_Ind", sep);
else
DBG("Source %p: Get_Configuration_Ind", sep);
return TRUE;
}
static void getconf_cfm(struct avdtp *session, struct avdtp_local_sep *sep,
struct avdtp_stream *stream, struct avdtp_error *err,
void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Set_Configuration_Cfm", sep);
else
DBG("Source %p: Set_Configuration_Cfm", sep);
}
static gboolean open_ind(struct avdtp *session, struct avdtp_local_sep *sep,
struct avdtp_stream *stream, uint8_t *err,
void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Open_Ind", sep);
else
DBG("Source %p: Open_Ind", sep);
return TRUE;
}
static void open_cfm(struct avdtp *session, struct avdtp_local_sep *sep,
struct avdtp_stream *stream, struct avdtp_error *err,
void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
struct a2dp_setup *setup;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Open_Cfm", sep);
else
DBG("Source %p: Open_Cfm", sep);
setup = find_setup_by_session(session);
if (!setup)
return;
if (setup->reconfigure)
setup->reconfigure = FALSE;
if (err) {
setup->stream = NULL;
setup->err = err;
}
finalize_config(setup);
}
static gboolean suspend_timeout(struct a2dp_sep *sep)
{
if (avdtp_suspend(sep->session, sep->stream) == 0)
sep->suspending = TRUE;
sep->suspend_timer = 0;
avdtp_unref(sep->session);
sep->session = NULL;
return FALSE;
}
static gboolean start_ind(struct avdtp *session, struct avdtp_local_sep *sep,
struct avdtp_stream *stream, uint8_t *err,
void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
struct a2dp_setup *setup;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Start_Ind", sep);
else
DBG("Source %p: Start_Ind", sep);
setup = find_setup_by_session(session);
if (setup)
finalize_resume(setup);
if (!a2dp_sep->locked) {
a2dp_sep->session = avdtp_ref(session);
a2dp_sep->suspend_timer = g_timeout_add_seconds(SUSPEND_TIMEOUT,
(GSourceFunc) suspend_timeout,
a2dp_sep);
}
return TRUE;
}
static void start_cfm(struct avdtp *session, struct avdtp_local_sep *sep,
struct avdtp_stream *stream, struct avdtp_error *err,
void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
struct a2dp_setup *setup;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Start_Cfm", sep);
else
DBG("Source %p: Start_Cfm", sep);
setup = find_setup_by_session(session);
if (!setup)
return;
if (err) {
setup->stream = NULL;
setup->err = err;
}
finalize_resume(setup);
}
static gboolean suspend_ind(struct avdtp *session, struct avdtp_local_sep *sep,
struct avdtp_stream *stream, uint8_t *err,
void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Suspend_Ind", sep);
else
DBG("Source %p: Suspend_Ind", sep);
if (a2dp_sep->suspend_timer) {
g_source_remove(a2dp_sep->suspend_timer);
a2dp_sep->suspend_timer = 0;
avdtp_unref(a2dp_sep->session);
a2dp_sep->session = NULL;
}
return TRUE;
}
static void suspend_cfm(struct avdtp *session, struct avdtp_local_sep *sep,
struct avdtp_stream *stream, struct avdtp_error *err,
void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
struct a2dp_setup *setup;
gboolean start;
int perr;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Suspend_Cfm", sep);
else
DBG("Source %p: Suspend_Cfm", sep);
a2dp_sep->suspending = FALSE;
setup = find_setup_by_session(session);
if (!setup)
return;
start = setup->start;
setup->start = FALSE;
if (err) {
setup->stream = NULL;
setup->err = err;
}
finalize_suspend(setup);
if (!start)
return;
if (err) {
finalize_resume(setup);
return;
}
perr = avdtp_start(session, a2dp_sep->stream);
if (perr < 0) {
error("Error on avdtp_start %s (%d)", strerror(-perr), -perr);
finalize_setup_errno(setup, -EIO, finalize_suspend, NULL);
}
}
static gboolean close_ind(struct avdtp *session, struct avdtp_local_sep *sep,
struct avdtp_stream *stream, uint8_t *err,
void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
struct a2dp_setup *setup;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Close_Ind", sep);
else
DBG("Source %p: Close_Ind", sep);
setup = find_setup_by_session(session);
if (!setup)
return TRUE;
finalize_setup_errno(setup, -ECONNRESET, finalize_suspend,
finalize_resume, NULL);
return TRUE;
}
static gboolean a2dp_reconfigure(gpointer data)
{
struct a2dp_setup *setup = data;
struct a2dp_sep *sep = setup->sep;
int posix_err;
struct avdtp_media_codec_capability *rsep_codec;
struct avdtp_service_capability *cap;
if (setup->rsep) {
cap = avdtp_get_codec(setup->rsep);
rsep_codec = (struct avdtp_media_codec_capability *) cap->data;
}
if (!setup->rsep || sep->codec != rsep_codec->media_codec_type)
setup->rsep = avdtp_find_remote_sep(setup->session, sep->lsep);
posix_err = avdtp_set_configuration(setup->session, setup->rsep,
sep->lsep,
setup->caps,
&setup->stream);
if (posix_err < 0) {
error("avdtp_set_configuration: %s", strerror(-posix_err));
goto failed;
}
return FALSE;
failed:
finalize_setup_errno(setup, posix_err, finalize_config, NULL);
return FALSE;
}
static void close_cfm(struct avdtp *session, struct avdtp_local_sep *sep,
struct avdtp_stream *stream, struct avdtp_error *err,
void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
struct a2dp_setup *setup;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Close_Cfm", sep);
else
DBG("Source %p: Close_Cfm", sep);
setup = find_setup_by_session(session);
if (!setup)
return;
if (err) {
setup->stream = NULL;
setup->err = err;
finalize_config(setup);
return;
}
if (!setup->rsep)
setup->rsep = avdtp_stream_get_remote_sep(stream);
if (setup->reconfigure)
g_timeout_add(RECONFIGURE_TIMEOUT, a2dp_reconfigure, setup);
}
static gboolean abort_ind(struct avdtp *session, struct avdtp_local_sep *sep,
struct avdtp_stream *stream, uint8_t *err,
void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Abort_Ind", sep);
else
DBG("Source %p: Abort_Ind", sep);
a2dp_sep->stream = NULL;
return TRUE;
}
static void abort_cfm(struct avdtp *session, struct avdtp_local_sep *sep,
struct avdtp_stream *stream, struct avdtp_error *err,
void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
struct a2dp_setup *setup;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: Abort_Cfm", sep);
else
DBG("Source %p: Abort_Cfm", sep);
setup = find_setup_by_session(session);
if (!setup)
return;
setup_unref(setup);
}
static gboolean reconf_ind(struct avdtp *session, struct avdtp_local_sep *sep,
uint8_t *err, void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: ReConfigure_Ind", sep);
else
DBG("Source %p: ReConfigure_Ind", sep);
return TRUE;
}
static gboolean delayreport_ind(struct avdtp *session,
struct avdtp_local_sep *sep,
uint8_t rseid, uint16_t delay,
uint8_t *err, void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
struct audio_device *dev = a2dp_get_dev(session);
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: DelayReport_Ind", sep);
else
DBG("Source %p: DelayReport_Ind", sep);
unix_delay_report(dev, rseid, delay);
return TRUE;
}
static gboolean endpoint_delayreport_ind(struct avdtp *session,
struct avdtp_local_sep *sep,
uint8_t rseid, uint16_t delay,
uint8_t *err, void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: DelayReport_Ind", sep);
else
DBG("Source %p: DelayReport_Ind", sep);
if (a2dp_sep->endpoint == NULL ||
a2dp_sep->endpoint->set_delay == NULL)
return FALSE;
a2dp_sep->endpoint->set_delay(a2dp_sep, delay, a2dp_sep->user_data);
return TRUE;
}
static void reconf_cfm(struct avdtp *session, struct avdtp_local_sep *sep,
struct avdtp_stream *stream, struct avdtp_error *err,
void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
struct a2dp_setup *setup;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: ReConfigure_Cfm", sep);
else
DBG("Source %p: ReConfigure_Cfm", sep);
setup = find_setup_by_session(session);
if (!setup)
return;
if (err) {
setup->stream = NULL;
setup->err = err;
}
finalize_config(setup);
}
static void delay_report_cfm(struct avdtp *session, struct avdtp_local_sep *sep,
struct avdtp_stream *stream,
struct avdtp_error *err, void *user_data)
{
struct a2dp_sep *a2dp_sep = user_data;
if (a2dp_sep->type == AVDTP_SEP_TYPE_SINK)
DBG("Sink %p: DelayReport_Cfm", sep);
else
DBG("Source %p: DelayReport_Cfm", sep);
}
static struct avdtp_sep_cfm cfm = {
.set_configuration = setconf_cfm,
.get_configuration = getconf_cfm,
.open = open_cfm,
.start = start_cfm,
.suspend = suspend_cfm,
.close = close_cfm,
.abort = abort_cfm,
.reconfigure = reconf_cfm,
.delay_report = delay_report_cfm,
};
static struct avdtp_sep_ind sbc_ind = {
.get_capability = sbc_getcap_ind,
.set_configuration = sbc_setconf_ind,
.get_configuration = getconf_ind,
.open = open_ind,
.start = start_ind,
.suspend = suspend_ind,
.close = close_ind,
.abort = abort_ind,
.reconfigure = reconf_ind,
.delayreport = delayreport_ind,
};
static struct avdtp_sep_ind mpeg_ind = {
.get_capability = mpeg_getcap_ind,
.set_configuration = mpeg_setconf_ind,
.get_configuration = getconf_ind,
.open = open_ind,
.start = start_ind,
.suspend = suspend_ind,
.close = close_ind,
.abort = abort_ind,
.reconfigure = reconf_ind,
.delayreport = delayreport_ind,
};
static struct avdtp_sep_ind endpoint_ind = {
.get_capability = endpoint_getcap_ind,
.set_configuration = endpoint_setconf_ind,
.get_configuration = getconf_ind,
.open = open_ind,
.start = start_ind,
.suspend = suspend_ind,
.close = close_ind,
.abort = abort_ind,
.reconfigure = reconf_ind,
.delayreport = endpoint_delayreport_ind,
};
static sdp_record_t *a2dp_record(uint8_t type, uint16_t avdtp_ver)
{
sdp_list_t *svclass_id, *pfseq, *apseq, *root;
uuid_t root_uuid, l2cap_uuid, avdtp_uuid, a2dp_uuid;
sdp_profile_desc_t profile[1];
sdp_list_t *aproto, *proto[2];
sdp_record_t *record;
sdp_data_t *psm, *version, *features;
uint16_t lp = AVDTP_UUID;
uint16_t a2dp_ver = 0x0102, feat = 0x000f;
record = sdp_record_alloc();
if (!record)
return NULL;
sdp_uuid16_create(&root_uuid, PUBLIC_BROWSE_GROUP);
root = sdp_list_append(0, &root_uuid);
sdp_set_browse_groups(record, root);
if (type == AVDTP_SEP_TYPE_SOURCE)
sdp_uuid16_create(&a2dp_uuid, AUDIO_SOURCE_SVCLASS_ID);
else
sdp_uuid16_create(&a2dp_uuid, AUDIO_SINK_SVCLASS_ID);
svclass_id = sdp_list_append(0, &a2dp_uuid);
sdp_set_service_classes(record, svclass_id);
sdp_uuid16_create(&profile[0].uuid, ADVANCED_AUDIO_PROFILE_ID);
profile[0].version = a2dp_ver;
pfseq = sdp_list_append(0, &profile[0]);
sdp_set_profile_descs(record, pfseq);
sdp_uuid16_create(&l2cap_uuid, L2CAP_UUID);
proto[0] = sdp_list_append(0, &l2cap_uuid);
psm = sdp_data_alloc(SDP_UINT16, &lp);
proto[0] = sdp_list_append(proto[0], psm);
apseq = sdp_list_append(0, proto[0]);
sdp_uuid16_create(&avdtp_uuid, AVDTP_UUID);
proto[1] = sdp_list_append(0, &avdtp_uuid);
version = sdp_data_alloc(SDP_UINT16, &avdtp_ver);
proto[1] = sdp_list_append(proto[1], version);
apseq = sdp_list_append(apseq, proto[1]);
aproto = sdp_list_append(0, apseq);
sdp_set_access_protos(record, aproto);
features = sdp_data_alloc(SDP_UINT16, &feat);
sdp_attr_add(record, SDP_ATTR_SUPPORTED_FEATURES, features);
if (type == AVDTP_SEP_TYPE_SOURCE)
sdp_set_info_attr(record, "Audio Source", 0, 0);
else
sdp_set_info_attr(record, "Audio Sink", 0, 0);
free(psm);
free(version);
sdp_list_free(proto[0], 0);
sdp_list_free(proto[1], 0);
sdp_list_free(apseq, 0);
sdp_list_free(pfseq, 0);
sdp_list_free(aproto, 0);
sdp_list_free(root, 0);
sdp_list_free(svclass_id, 0);
return record;
}
static struct a2dp_server *find_server(GSList *list, const bdaddr_t *src)
{
for (; list; list = list->next) {
struct a2dp_server *server = list->data;
if (bacmp(&server->src, src) == 0)
return server;
}
return NULL;
}
int a2dp_register(DBusConnection *conn, const bdaddr_t *src, GKeyFile *config)
{
int sbc_srcs = 0, sbc_sinks = 0;
int mpeg12_srcs = 0, mpeg12_sinks = 0;
gboolean source = TRUE, sink = FALSE, socket = FALSE;
gboolean delay_reporting = FALSE;
char *str;
GError *err = NULL;
int i;
struct a2dp_server *server;
if (!config)
goto proceed;
str = g_key_file_get_string(config, "General", "Enable", &err);
if (err) {
DBG("audio.conf: %s", err->message);
g_clear_error(&err);
} else {
if (strstr(str, "Sink"))
source = TRUE;
if (strstr(str, "Source"))
sink = TRUE;
if (strstr(str, "Socket"))
socket = TRUE;
g_free(str);
}
str = g_key_file_get_string(config, "General", "Disable", &err);
if (err) {
DBG("audio.conf: %s", err->message);
g_clear_error(&err);
} else {
if (strstr(str, "Sink"))
source = FALSE;
if (strstr(str, "Source"))
sink = FALSE;
if (strstr(str, "Socket"))
socket = FALSE;
g_free(str);
}
/* Don't register any local sep if Socket is disabled */
if (socket == FALSE)
goto proceed;
str = g_key_file_get_string(config, "A2DP", "SBCSources", &err);
if (err) {
DBG("audio.conf: %s", err->message);
g_clear_error(&err);
sbc_srcs = 1;
} else {
sbc_srcs = atoi(str);
g_free(str);
}
str = g_key_file_get_string(config, "A2DP", "MPEG12Sources", &err);
if (err) {
DBG("audio.conf: %s", err->message);
g_clear_error(&err);
} else {
mpeg12_srcs = atoi(str);
g_free(str);
}
str = g_key_file_get_string(config, "A2DP", "SBCSinks", &err);
if (err) {
DBG("audio.conf: %s", err->message);
g_clear_error(&err);
sbc_sinks = 1;
} else {
sbc_sinks = atoi(str);
g_free(str);
}
str = g_key_file_get_string(config, "A2DP", "MPEG12Sinks", &err);
if (err) {
DBG("audio.conf: %s", err->message);
g_clear_error(&err);
} else {
mpeg12_sinks = atoi(str);
g_free(str);
}
proceed:
if (!connection)
connection = dbus_connection_ref(conn);
server = find_server(servers, src);
if (!server) {
int av_err;
server = g_new0(struct a2dp_server, 1);
if (!server)
return -ENOMEM;
av_err = avdtp_init(src, config, &server->version);
if (av_err < 0) {
g_free(server);
return av_err;
}
bacpy(&server->src, src);
servers = g_slist_append(servers, server);
}
if (config)
delay_reporting = g_key_file_get_boolean(config, "A2DP",
"DelayReporting", NULL);
if (delay_reporting)
server->version = 0x0103;
else
server->version = 0x0102;
server->source_enabled = source;
if (source) {
for (i = 0; i < sbc_srcs; i++)
a2dp_add_sep(src, AVDTP_SEP_TYPE_SOURCE,
A2DP_CODEC_SBC, delay_reporting,
NULL, NULL, NULL, NULL);
for (i = 0; i < mpeg12_srcs; i++)
a2dp_add_sep(src, AVDTP_SEP_TYPE_SOURCE,
A2DP_CODEC_MPEG12, delay_reporting,
NULL, NULL, NULL, NULL);
}
server->sink_enabled = sink;
if (sink) {
for (i = 0; i < sbc_sinks; i++)
a2dp_add_sep(src, AVDTP_SEP_TYPE_SINK,
A2DP_CODEC_SBC, delay_reporting,
NULL, NULL, NULL, NULL);
for (i = 0; i < mpeg12_sinks; i++)
a2dp_add_sep(src, AVDTP_SEP_TYPE_SINK,
A2DP_CODEC_MPEG12, delay_reporting,
NULL, NULL, NULL, NULL);
}
return 0;
}
static void a2dp_unregister_sep(struct a2dp_sep *sep)
{
if (sep->destroy) {
sep->destroy(sep->user_data);
sep->endpoint = NULL;
}
avdtp_unregister_sep(sep->lsep);
g_free(sep);
}
void a2dp_unregister(const bdaddr_t *src)
{
struct a2dp_server *server;
server = find_server(servers, src);
if (!server)
return;
g_slist_free_full(server->sinks, (GDestroyNotify) a2dp_unregister_sep);
g_slist_free_full(server->sources,
(GDestroyNotify) a2dp_unregister_sep);
avdtp_exit(src);
servers = g_slist_remove(servers, server);
if (server->source_record_id)
remove_record_from_server(server->source_record_id);
if (server->sink_record_id)
remove_record_from_server(server->sink_record_id);
g_free(server);
if (servers)
return;
dbus_connection_unref(connection);
connection = NULL;
}
struct a2dp_sep *a2dp_add_sep(const bdaddr_t *src, uint8_t type,
uint8_t codec, gboolean delay_reporting,
struct a2dp_endpoint *endpoint,
void *user_data, GDestroyNotify destroy,
int *err)
{
struct a2dp_server *server;
struct a2dp_sep *sep;
GSList **l;
uint32_t *record_id;
sdp_record_t *record;
struct avdtp_sep_ind *ind;
server = find_server(servers, src);
if (server == NULL) {
if (err)
*err = -EPROTONOSUPPORT;
return NULL;
}
if (type == AVDTP_SEP_TYPE_SINK && !server->sink_enabled) {
if (err)
*err = -EPROTONOSUPPORT;
return NULL;
}
if (type == AVDTP_SEP_TYPE_SOURCE && !server->source_enabled) {
if (err)
*err = -EPROTONOSUPPORT;
return NULL;
}
sep = g_new0(struct a2dp_sep, 1);
if (endpoint) {
ind = &endpoint_ind;
goto proceed;
}
ind = (codec == A2DP_CODEC_MPEG12) ? &mpeg_ind : &sbc_ind;
proceed:
sep->lsep = avdtp_register_sep(&server->src, type,
AVDTP_MEDIA_TYPE_AUDIO, codec,
delay_reporting, ind, &cfm, sep);
if (sep->lsep == NULL) {
g_free(sep);
if (err)
*err = -EINVAL;
return NULL;
}
sep->server = server;
sep->endpoint = endpoint;
sep->codec = codec;
sep->type = type;
sep->delay_reporting = delay_reporting;
sep->user_data = user_data;
sep->destroy = destroy;
if (type == AVDTP_SEP_TYPE_SOURCE) {
l = &server->sources;
record_id = &server->source_record_id;
} else {
l = &server->sinks;
record_id = &server->sink_record_id;
}
if (*record_id != 0)
goto add;
record = a2dp_record(type, server->version);
if (!record) {
error("Unable to allocate new service record");
avdtp_unregister_sep(sep->lsep);
g_free(sep);
if (err)
*err = -EINVAL;
return NULL;
}
if (add_record_to_server(&server->src, record) < 0) {
error("Unable to register A2DP service record");\
sdp_record_free(record);
avdtp_unregister_sep(sep->lsep);
g_free(sep);
if (err)
*err = -EINVAL;
return NULL;
}
*record_id = record->handle;
add:
*l = g_slist_append(*l, sep);
if (err)
*err = 0;
return sep;
}
void a2dp_remove_sep(struct a2dp_sep *sep)
{
struct a2dp_server *server = sep->server;
if (sep->type == AVDTP_SEP_TYPE_SOURCE) {
if (g_slist_find(server->sources, sep) == NULL)
return;
server->sources = g_slist_remove(server->sources, sep);
if (server->sources == NULL && server->source_record_id) {
remove_record_from_server(server->source_record_id);
server->source_record_id = 0;
}
} else {
if (g_slist_find(server->sinks, sep) == NULL)
return;
server->sinks = g_slist_remove(server->sinks, sep);
if (server->sinks == NULL && server->sink_record_id) {
remove_record_from_server(server->sink_record_id);
server->sink_record_id = 0;
}
}
if (sep->locked)
return;
a2dp_unregister_sep(sep);
}
struct a2dp_sep *a2dp_get(struct avdtp *session,
struct avdtp_remote_sep *rsep)
{
GSList *l;
struct a2dp_server *server;
struct avdtp_service_capability *cap;
struct avdtp_media_codec_capability *codec_cap = NULL;
bdaddr_t src;
avdtp_get_peers(session, &src, NULL);
server = find_server(servers, &src);
if (!server)
return NULL;
cap = avdtp_get_codec(rsep);
codec_cap = (void *) cap->data;
if (avdtp_get_type(rsep) == AVDTP_SEP_TYPE_SINK)
l = server->sources;
else
l = server->sinks;
for (; l != NULL; l = l->next) {
struct a2dp_sep *sep = l->data;
if (sep->locked)
continue;
if (sep->codec != codec_cap->media_codec_type)
continue;
if (!sep->stream || avdtp_has_stream(session, sep->stream))
return sep;
}
return NULL;
}
static uint8_t default_bitpool(uint8_t freq, uint8_t mode)
{
switch (freq) {
case SBC_SAMPLING_FREQ_16000:
case SBC_SAMPLING_FREQ_32000:
return 53;
case SBC_SAMPLING_FREQ_44100:
switch (mode) {
case SBC_CHANNEL_MODE_MONO:
case SBC_CHANNEL_MODE_DUAL_CHANNEL:
return 31;
case SBC_CHANNEL_MODE_STEREO:
case SBC_CHANNEL_MODE_JOINT_STEREO:
return 53;
default:
error("Invalid channel mode %u", mode);
return 53;
}
case SBC_SAMPLING_FREQ_48000:
switch (mode) {
case SBC_CHANNEL_MODE_MONO:
case SBC_CHANNEL_MODE_DUAL_CHANNEL:
return 29;
case SBC_CHANNEL_MODE_STEREO:
case SBC_CHANNEL_MODE_JOINT_STEREO:
return 51;
default:
error("Invalid channel mode %u", mode);
return 51;
}
default:
error("Invalid sampling freq %u", freq);
return 53;
}
}
static gboolean select_sbc_params(struct sbc_codec_cap *cap,
struct sbc_codec_cap *supported)
{
unsigned int max_bitpool, min_bitpool;
memset(cap, 0, sizeof(struct sbc_codec_cap));
cap->cap.media_type = AVDTP_MEDIA_TYPE_AUDIO;
cap->cap.media_codec_type = A2DP_CODEC_SBC;
if (supported->frequency & SBC_SAMPLING_FREQ_44100)
cap->frequency = SBC_SAMPLING_FREQ_44100;
else if (supported->frequency & SBC_SAMPLING_FREQ_48000)
cap->frequency = SBC_SAMPLING_FREQ_48000;
else if (supported->frequency & SBC_SAMPLING_FREQ_32000)
cap->frequency = SBC_SAMPLING_FREQ_32000;
else if (supported->frequency & SBC_SAMPLING_FREQ_16000)
cap->frequency = SBC_SAMPLING_FREQ_16000;
else {
error("No supported frequencies");
return FALSE;
}
if (supported->channel_mode & SBC_CHANNEL_MODE_JOINT_STEREO)
cap->channel_mode = SBC_CHANNEL_MODE_JOINT_STEREO;
else if (supported->channel_mode & SBC_CHANNEL_MODE_STEREO)
cap->channel_mode = SBC_CHANNEL_MODE_STEREO;
else if (supported->channel_mode & SBC_CHANNEL_MODE_DUAL_CHANNEL)
cap->channel_mode = SBC_CHANNEL_MODE_DUAL_CHANNEL;
else if (supported->channel_mode & SBC_CHANNEL_MODE_MONO)
cap->channel_mode = SBC_CHANNEL_MODE_MONO;
else {
error("No supported channel modes");
return FALSE;
}
if (supported->block_length & SBC_BLOCK_LENGTH_16)
cap->block_length = SBC_BLOCK_LENGTH_16;
else if (supported->block_length & SBC_BLOCK_LENGTH_12)
cap->block_length = SBC_BLOCK_LENGTH_12;
else if (supported->block_length & SBC_BLOCK_LENGTH_8)
cap->block_length = SBC_BLOCK_LENGTH_8;
else if (supported->block_length & SBC_BLOCK_LENGTH_4)
cap->block_length = SBC_BLOCK_LENGTH_4;
else {
error("No supported block lengths");
return FALSE;
}
if (supported->subbands & SBC_SUBBANDS_8)
cap->subbands = SBC_SUBBANDS_8;
else if (supported->subbands & SBC_SUBBANDS_4)
cap->subbands = SBC_SUBBANDS_4;
else {
error("No supported subbands");
return FALSE;
}
if (supported->allocation_method & SBC_ALLOCATION_LOUDNESS)
cap->allocation_method = SBC_ALLOCATION_LOUDNESS;
else if (supported->allocation_method & SBC_ALLOCATION_SNR)
cap->allocation_method = SBC_ALLOCATION_SNR;
min_bitpool = MAX(MIN_BITPOOL, supported->min_bitpool);
max_bitpool = MIN(default_bitpool(cap->frequency, cap->channel_mode),
supported->max_bitpool);
cap->min_bitpool = min_bitpool;
cap->max_bitpool = max_bitpool;
return TRUE;
}
static gboolean select_capabilities(struct avdtp *session,
struct avdtp_remote_sep *rsep,
GSList **caps)
{
struct avdtp_service_capability *media_transport, *media_codec;
struct sbc_codec_cap sbc_cap;
media_codec = avdtp_get_codec(rsep);
if (!media_codec)
return FALSE;
select_sbc_params(&sbc_cap, (struct sbc_codec_cap *) media_codec->data);
media_transport = avdtp_service_cap_new(AVDTP_MEDIA_TRANSPORT,
NULL, 0);
*caps = g_slist_append(*caps, media_transport);
media_codec = avdtp_service_cap_new(AVDTP_MEDIA_CODEC, &sbc_cap,
sizeof(sbc_cap));
*caps = g_slist_append(*caps, media_codec);
if (avdtp_get_delay_reporting(rsep)) {
struct avdtp_service_capability *delay_reporting;
delay_reporting = avdtp_service_cap_new(AVDTP_DELAY_REPORTING,
NULL, 0);
*caps = g_slist_append(*caps, delay_reporting);
}
return TRUE;
}
static void select_cb(struct a2dp_setup *setup, void *ret, int size)
{
struct avdtp_service_capability *media_transport, *media_codec;
struct avdtp_media_codec_capability *cap;
if (size < 0) {
DBG("Endpoint replied an invalid configuration");
goto done;
}
media_transport = avdtp_service_cap_new(AVDTP_MEDIA_TRANSPORT,
NULL, 0);
setup->caps = g_slist_append(setup->caps, media_transport);
cap = g_malloc0(sizeof(*cap) + size);
cap->media_type = AVDTP_MEDIA_TYPE_AUDIO;
cap->media_codec_type = setup->sep->codec;
memcpy(cap->data, ret, size);
media_codec = avdtp_service_cap_new(AVDTP_MEDIA_CODEC, cap,
sizeof(*cap) + size);
setup->caps = g_slist_append(setup->caps, media_codec);
g_free(cap);
done:
finalize_select(setup);
}
static gboolean auto_select(gpointer data)
{
struct a2dp_setup *setup = data;
finalize_select(setup);
return FALSE;
}
static struct a2dp_sep *a2dp_find_sep(struct avdtp *session, GSList *list,
const char *sender)
{
for (; list; list = list->next) {
struct a2dp_sep *sep = list->data;
/* Use sender's endpoint if available */
if (sender) {
const char *name;
if (sep->endpoint == NULL)
continue;
name = sep->endpoint->get_name(sep, sep->user_data);
if (g_strcmp0(sender, name) != 0)
continue;
}
if (avdtp_find_remote_sep(session, sep->lsep) == NULL)
continue;
return sep;
}
return NULL;
}
static struct a2dp_sep *a2dp_select_sep(struct avdtp *session, uint8_t type,
const char *sender)
{
struct a2dp_server *server;
struct a2dp_sep *sep;
GSList *l;
bdaddr_t src;
avdtp_get_peers(session, &src, NULL);
server = find_server(servers, &src);
if (!server)
return NULL;
l = type == AVDTP_SEP_TYPE_SINK ? server->sources : server->sinks;
/* Check sender's seps first */
sep = a2dp_find_sep(session, l, sender);
if (sep != NULL)
return sep;
return a2dp_find_sep(session, l, NULL);
}
unsigned int a2dp_select_capabilities(struct avdtp *session,
uint8_t type, const char *sender,
a2dp_select_cb_t cb,
void *user_data)
{
struct a2dp_setup *setup;
struct a2dp_setup_cb *cb_data;
struct a2dp_sep *sep;
struct avdtp_service_capability *service;
struct avdtp_media_codec_capability *codec;
int err;
sep = a2dp_select_sep(session, type, sender);
if (!sep) {
error("Unable to select SEP");
return 0;
}
setup = a2dp_setup_get(session);
if (!setup)
return 0;
cb_data = setup_cb_new(setup);
cb_data->select_cb = cb;
cb_data->user_data = user_data;
setup->sep = sep;
setup->rsep = avdtp_find_remote_sep(session, sep->lsep);
if (setup->rsep == NULL) {
error("Could not find remote sep");
goto fail;
}
/* FIXME: Remove auto select when it is not longer possible to register
endpoint in the configuration file */
if (sep->endpoint == NULL) {
if (!select_capabilities(session, setup->rsep,
&setup->caps)) {
error("Unable to auto select remote SEP capabilities");
goto fail;
}
g_idle_add(auto_select, setup);
return cb_data->id;
}
service = avdtp_get_codec(setup->rsep);
codec = (struct avdtp_media_codec_capability *) service->data;
err = sep->endpoint->select_configuration(sep, codec->data,
service->length - sizeof(*codec),
setup,
select_cb, sep->user_data);
if (err == 0)
return cb_data->id;
fail:
setup_cb_free(cb_data);
return 0;
}
unsigned int a2dp_config(struct avdtp *session, struct a2dp_sep *sep,
a2dp_config_cb_t cb, GSList *caps,
void *user_data)
{
struct a2dp_setup_cb *cb_data;
GSList *l;
struct a2dp_server *server;
struct a2dp_setup *setup;
struct a2dp_sep *tmp;
struct avdtp_service_capability *cap;
struct avdtp_media_codec_capability *codec_cap = NULL;
int posix_err;
bdaddr_t src;
avdtp_get_peers(session, &src, NULL);
server = find_server(servers, &src);
if (!server)
return 0;
for (l = caps; l != NULL; l = l->next) {
cap = l->data;
if (cap->category != AVDTP_MEDIA_CODEC)
continue;
codec_cap = (void *) cap->data;
break;
}
if (!codec_cap)
return 0;
if (sep->codec != codec_cap->media_codec_type)
return 0;
DBG("a2dp_config: selected SEP %p", sep->lsep);
setup = a2dp_setup_get(session);
if (!setup)
return 0;
cb_data = setup_cb_new(setup);
cb_data->config_cb = cb;
cb_data->user_data = user_data;
setup->sep = sep;
setup->stream = sep->stream;
/* Copy given caps if they are different than current caps */
if (setup->caps != caps) {
g_slist_free_full(setup->caps, g_free);
setup->caps = g_slist_copy(caps);
}
switch (avdtp_sep_get_state(sep->lsep)) {
case AVDTP_STATE_IDLE:
if (sep->type == AVDTP_SEP_TYPE_SOURCE)
l = server->sources;
else
l = server->sinks;
for (; l != NULL; l = l->next) {
tmp = l->data;
if (avdtp_has_stream(session, tmp->stream))
break;
}
if (l != NULL) {
if (a2dp_sep_get_lock(tmp))
goto failed;
setup->reconfigure = TRUE;
if (avdtp_close(session, tmp->stream, FALSE) < 0) {
error("avdtp_close failed");
goto failed;
}
break;
}
setup->rsep = avdtp_find_remote_sep(session, sep->lsep);
if (setup->rsep == NULL) {
error("No matching ACP and INT SEPs found");
goto failed;
}
posix_err = avdtp_set_configuration(session, setup->rsep,
sep->lsep, caps,
&setup->stream);
if (posix_err < 0) {
error("avdtp_set_configuration: %s",
strerror(-posix_err));
goto failed;
}
break;
case AVDTP_STATE_OPEN:
case AVDTP_STATE_STREAMING:
if (avdtp_stream_has_capabilities(setup->stream, caps)) {
DBG("Configuration match: resuming");
cb_data->source_id = g_idle_add(finalize_config,
setup);
} else if (!setup->reconfigure) {
setup->reconfigure = TRUE;
if (avdtp_close(session, sep->stream, FALSE) < 0) {
error("avdtp_close failed");
goto failed;
}
}
break;
default:
error("SEP in bad state for requesting a new stream");
goto failed;
}
return cb_data->id;
failed:
setup_cb_free(cb_data);
return 0;
}
unsigned int a2dp_resume(struct avdtp *session, struct a2dp_sep *sep,
a2dp_stream_cb_t cb, void *user_data)
{
struct a2dp_setup_cb *cb_data;
struct a2dp_setup *setup;
setup = a2dp_setup_get(session);
if (!setup)
return 0;
cb_data = setup_cb_new(setup);
cb_data->resume_cb = cb;
cb_data->user_data = user_data;
setup->sep = sep;
setup->stream = sep->stream;
switch (avdtp_sep_get_state(sep->lsep)) {
case AVDTP_STATE_IDLE:
goto failed;
break;
case AVDTP_STATE_OPEN:
if (avdtp_start(session, sep->stream) < 0) {
error("avdtp_start failed");
goto failed;
}
break;
case AVDTP_STATE_STREAMING:
if (!sep->suspending && sep->suspend_timer) {
g_source_remove(sep->suspend_timer);
sep->suspend_timer = 0;
avdtp_unref(sep->session);
sep->session = NULL;
}
if (sep->suspending)
setup->start = TRUE;
else
cb_data->source_id = g_idle_add(finalize_resume,
setup);
break;
default:
error("SEP in bad state for resume");
goto failed;
}
return cb_data->id;
failed:
setup_cb_free(cb_data);
return 0;
}
unsigned int a2dp_suspend(struct avdtp *session, struct a2dp_sep *sep,
a2dp_stream_cb_t cb, void *user_data)
{
struct a2dp_setup_cb *cb_data;
struct a2dp_setup *setup;
setup = a2dp_setup_get(session);
if (!setup)
return 0;
cb_data = setup_cb_new(setup);
cb_data->suspend_cb = cb;
cb_data->user_data = user_data;
setup->sep = sep;
setup->stream = sep->stream;
switch (avdtp_sep_get_state(sep->lsep)) {
case AVDTP_STATE_IDLE:
error("a2dp_suspend: no stream to suspend");
goto failed;
break;
case AVDTP_STATE_OPEN:
cb_data->source_id = g_idle_add(finalize_suspend, setup);
break;
case AVDTP_STATE_STREAMING:
if (avdtp_suspend(session, sep->stream) < 0) {
error("avdtp_suspend failed");
goto failed;
}
sep->suspending = TRUE;
break;
default:
error("SEP in bad state for suspend");
goto failed;
}
return cb_data->id;
failed:
setup_cb_free(cb_data);
return 0;
}
gboolean a2dp_cancel(struct audio_device *dev, unsigned int id)
{
struct a2dp_setup *setup;
GSList *l;
setup = find_setup_by_dev(dev);
if (!setup)
return FALSE;
for (l = setup->cb; l != NULL; l = g_slist_next(l)) {
struct a2dp_setup_cb *cb = l->data;
if (cb->id != id)
continue;
setup_ref(setup);
setup_cb_free(cb);
if (!setup->cb) {
DBG("aborting setup %p", setup);
avdtp_abort(setup->session, setup->stream);
return TRUE;
}
setup_unref(setup);
return TRUE;
}
return FALSE;
}
gboolean a2dp_sep_lock(struct a2dp_sep *sep, struct avdtp *session)
{
if (sep->locked)
return FALSE;
DBG("SEP %p locked", sep->lsep);
sep->locked = TRUE;
return TRUE;
}
gboolean a2dp_sep_unlock(struct a2dp_sep *sep, struct avdtp *session)
{
struct a2dp_server *server = sep->server;
avdtp_state_t state;
GSList *l;
state = avdtp_sep_get_state(sep->lsep);
sep->locked = FALSE;
DBG("SEP %p unlocked", sep->lsep);
if (sep->type == AVDTP_SEP_TYPE_SOURCE)
l = server->sources;
else
l = server->sinks;
/* Unregister sep if it was removed */
if (g_slist_find(l, sep) == NULL) {
a2dp_unregister_sep(sep);
return TRUE;
}
if (!sep->stream || state == AVDTP_STATE_IDLE)
return TRUE;
switch (state) {
case AVDTP_STATE_OPEN:
/* Set timer here */
break;
case AVDTP_STATE_STREAMING:
if (avdtp_suspend(session, sep->stream) == 0)
sep->suspending = TRUE;
break;
default:
break;
}
return TRUE;
}
gboolean a2dp_sep_get_lock(struct a2dp_sep *sep)
{
return sep->locked;
}
static int stream_cmp(gconstpointer data, gconstpointer user_data)
{
const struct a2dp_sep *sep = data;
const struct avdtp_stream *stream = user_data;
return (sep->stream != stream);
}
struct a2dp_sep *a2dp_get_sep(struct avdtp *session,
struct avdtp_stream *stream)
{
struct a2dp_server *server;
bdaddr_t src, dst;
GSList *l;
avdtp_get_peers(session, &src, &dst);
for (l = servers; l; l = l->next) {
server = l->data;
if (bacmp(&src, &server->src) == 0)
break;
}
if (!l)
return NULL;
l = g_slist_find_custom(server->sources, stream, stream_cmp);
if (l)
return l->data;
l = g_slist_find_custom(server->sinks, stream, stream_cmp);
if (l)
return l->data;
return NULL;
}
struct avdtp_stream *a2dp_sep_get_stream(struct a2dp_sep *sep)
{
return sep->stream;
}
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