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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
*
*/
#define A2DP_CODEC_SBC 0x00
#define A2DP_CODEC_MPEG12 0x01
#define A2DP_CODEC_MPEG24 0x02
#define A2DP_CODEC_ATRAC 0x03
#define SBC_SAMPLING_FREQ_16000 (1 << 3)
#define SBC_SAMPLING_FREQ_32000 (1 << 2)
#define SBC_SAMPLING_FREQ_44100 (1 << 1)
#define SBC_SAMPLING_FREQ_48000 1
#define SBC_CHANNEL_MODE_MONO (1 << 3)
#define SBC_CHANNEL_MODE_DUAL_CHANNEL (1 << 2)
#define SBC_CHANNEL_MODE_STEREO (1 << 1)
#define SBC_CHANNEL_MODE_JOINT_STEREO 1
#define SBC_BLOCK_LENGTH_4 (1 << 3)
#define SBC_BLOCK_LENGTH_8 (1 << 2)
#define SBC_BLOCK_LENGTH_12 (1 << 1)
#define SBC_BLOCK_LENGTH_16 1
#define SBC_SUBBANDS_4 (1 << 1)
#define SBC_SUBBANDS_8 1
#define SBC_ALLOCATION_SNR (1 << 1)
#define SBC_ALLOCATION_LOUDNESS 1
#define MPEG_CHANNEL_MODE_MONO (1 << 3)
#define MPEG_CHANNEL_MODE_DUAL_CHANNEL (1 << 2)
#define MPEG_CHANNEL_MODE_STEREO (1 << 1)
#define MPEG_CHANNEL_MODE_JOINT_STEREO 1
#define MPEG_LAYER_MP1 (1 << 2)
#define MPEG_LAYER_MP2 (1 << 1)
#define MPEG_LAYER_MP3 1
#define MPEG_SAMPLING_FREQ_16000 (1 << 5)
#define MPEG_SAMPLING_FREQ_22050 (1 << 4)
#define MPEG_SAMPLING_FREQ_24000 (1 << 3)
#define MPEG_SAMPLING_FREQ_32000 (1 << 2)
#define MPEG_SAMPLING_FREQ_44100 (1 << 1)
#define MPEG_SAMPLING_FREQ_48000 1
#define MAX_BITPOOL 64
#define MIN_BITPOOL 2
#if __BYTE_ORDER == __LITTLE_ENDIAN
struct sbc_codec_cap {
struct avdtp_media_codec_capability cap;
uint8_t channel_mode:4;
uint8_t frequency:4;
uint8_t allocation_method:2;
uint8_t subbands:2;
uint8_t block_length:4;
uint8_t min_bitpool;
uint8_t max_bitpool;
} __attribute__ ((packed));
struct mpeg_codec_cap {
struct avdtp_media_codec_capability cap;
uint8_t channel_mode:4;
uint8_t crc:1;
uint8_t layer:3;
uint8_t frequency:6;
uint8_t mpf:1;
uint8_t rfa:1;
uint16_t bitrate;
} __attribute__ ((packed));
#elif __BYTE_ORDER == __BIG_ENDIAN
struct sbc_codec_cap {
struct avdtp_media_codec_capability cap;
uint8_t frequency:4;
uint8_t channel_mode:4;
uint8_t block_length:4;
uint8_t subbands:2;
uint8_t allocation_method:2;
uint8_t min_bitpool;
uint8_t max_bitpool;
} __attribute__ ((packed));
struct mpeg_codec_cap {
struct avdtp_media_codec_capability cap;
uint8_t layer:3;
uint8_t crc:1;
uint8_t channel_mode:4;
uint8_t rfa:1;
uint8_t mpf:1;
uint8_t frequency:6;
uint16_t bitrate;
} __attribute__ ((packed));
#else
#error "Unknown byte order"
#endif
struct a2dp_sep;
struct a2dp_setup;
typedef void (*a2dp_endpoint_select_t) (struct a2dp_setup *setup, void *ret,
int size);
typedef void (*a2dp_endpoint_config_t) (struct a2dp_setup *setup, gboolean ret);
struct a2dp_endpoint {
const char *(*get_name) (struct a2dp_sep *sep, void *user_data);
size_t (*get_capabilities) (struct a2dp_sep *sep,
uint8_t **capabilities,
void *user_data);
int (*select_configuration) (struct a2dp_sep *sep,
uint8_t *capabilities,
size_t length,
struct a2dp_setup *setup,
a2dp_endpoint_select_t cb,
void *user_data);
int (*set_configuration) (struct a2dp_sep *sep,
struct audio_device *dev,
uint8_t *configuration,
size_t length,
struct a2dp_setup *setup,
a2dp_endpoint_config_t cb,
void *user_data);
void (*clear_configuration) (struct a2dp_sep *sep, void *user_data);
void (*set_delay) (struct a2dp_sep *sep, uint16_t delay,
void *user_data);
};
typedef void (*a2dp_select_cb_t) (struct avdtp *session,
struct a2dp_sep *sep, GSList *caps,
void *user_data);
typedef void (*a2dp_config_cb_t) (struct avdtp *session, struct a2dp_sep *sep,
struct avdtp_stream *stream,
struct avdtp_error *err,
void *user_data);
typedef void (*a2dp_stream_cb_t) (struct avdtp *session,
struct avdtp_error *err,
void *user_data);
int a2dp_register(DBusConnection *conn, const bdaddr_t *src, GKeyFile *config);
void a2dp_unregister(const bdaddr_t *src);
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);
void a2dp_remove_sep(struct a2dp_sep *sep);
struct a2dp_sep *a2dp_get(struct avdtp *session, struct avdtp_remote_sep *sep);
unsigned int a2dp_select_capabilities(struct avdtp *session,
uint8_t type, const char *sender,
a2dp_select_cb_t cb,
void *user_data);
unsigned int a2dp_config(struct avdtp *session, struct a2dp_sep *sep,
a2dp_config_cb_t cb, GSList *caps,
void *user_data);
unsigned int a2dp_resume(struct avdtp *session, struct a2dp_sep *sep,
a2dp_stream_cb_t cb, void *user_data);
unsigned int a2dp_suspend(struct avdtp *session, struct a2dp_sep *sep,
a2dp_stream_cb_t cb, void *user_data);
gboolean a2dp_cancel(struct audio_device *dev, unsigned int id);
gboolean a2dp_sep_lock(struct a2dp_sep *sep, struct avdtp *session);
gboolean a2dp_sep_unlock(struct a2dp_sep *sep, struct avdtp *session);
gboolean a2dp_sep_get_lock(struct a2dp_sep *sep);
struct avdtp_stream *a2dp_sep_get_stream(struct a2dp_sep *sep);
struct a2dp_sep *a2dp_get_sep(struct avdtp *session,
struct avdtp_stream *stream);
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