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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2006-2010 Nokia Corporation
* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
*
*
*/
struct avdtp;
struct avdtp_stream;
struct avdtp_local_sep;
struct avdtp_remote_sep;
struct avdtp_error {
uint8_t category;
union {
uint8_t error_code;
int posix_errno;
} err;
};
#define AVDTP_PSM 25
/* SEP capability categories */
#define AVDTP_MEDIA_TRANSPORT 0x01
#define AVDTP_REPORTING 0x02
#define AVDTP_RECOVERY 0x03
#define AVDTP_CONTENT_PROTECTION 0x04
#define AVDTP_HEADER_COMPRESSION 0x05
#define AVDTP_MULTIPLEXING 0x06
#define AVDTP_MEDIA_CODEC 0x07
#define AVDTP_DELAY_REPORTING 0x08
#define AVDTP_ERRNO 0xff
/* AVDTP error definitions */
#define AVDTP_BAD_HEADER_FORMAT 0x01
#define AVDTP_BAD_LENGTH 0x11
#define AVDTP_BAD_ACP_SEID 0x12
#define AVDTP_SEP_IN_USE 0x13
#define AVDTP_SEP_NOT_IN_USE 0x14
#define AVDTP_BAD_SERV_CATEGORY 0x17
#define AVDTP_BAD_PAYLOAD_FORMAT 0x18
#define AVDTP_NOT_SUPPORTED_COMMAND 0x19
#define AVDTP_INVALID_CAPABILITIES 0x1A
#define AVDTP_BAD_RECOVERY_TYPE 0x22
#define AVDTP_BAD_MEDIA_TRANSPORT_FORMAT 0x23
#define AVDTP_BAD_RECOVERY_FORMAT 0x25
#define AVDTP_BAD_ROHC_FORMAT 0x26
#define AVDTP_BAD_CP_FORMAT 0x27
#define AVDTP_BAD_MULTIPLEXING_FORMAT 0x28
#define AVDTP_UNSUPPORTED_CONFIGURATION 0x29
#define AVDTP_BAD_STATE 0x31
/* SEP types definitions */
#define AVDTP_SEP_TYPE_SOURCE 0x00
#define AVDTP_SEP_TYPE_SINK 0x01
/* Media types definitions */
#define AVDTP_MEDIA_TYPE_AUDIO 0x00
#define AVDTP_MEDIA_TYPE_VIDEO 0x01
#define AVDTP_MEDIA_TYPE_MULTIMEDIA 0x02
typedef enum {
AVDTP_STATE_IDLE,
AVDTP_STATE_CONFIGURED,
AVDTP_STATE_OPEN,
AVDTP_STATE_STREAMING,
AVDTP_STATE_CLOSING,
AVDTP_STATE_ABORTING,
} avdtp_state_t;
struct avdtp_service_capability {
uint8_t category;
uint8_t length;
uint8_t data[0];
} __attribute__ ((packed));
#if __BYTE_ORDER == __LITTLE_ENDIAN
struct avdtp_media_codec_capability {
uint8_t rfa0:4;
uint8_t media_type:4;
uint8_t media_codec_type;
uint8_t data[0];
} __attribute__ ((packed));
#elif __BYTE_ORDER == __BIG_ENDIAN
struct avdtp_media_codec_capability {
uint8_t media_type:4;
uint8_t rfa0:4;
uint8_t media_codec_type;
uint8_t data[0];
} __attribute__ ((packed));
#else
#error "Unknown byte order"
#endif
typedef void (*avdtp_stream_state_cb) (struct avdtp_stream *stream,
avdtp_state_t old_state,
avdtp_state_t new_state,
struct avdtp_error *err,
void *user_data);
typedef void (*avdtp_set_configuration_cb) (struct avdtp *session,
struct avdtp_stream *stream,
struct avdtp_error *err);
/* Callbacks for when a reply is received to a command that we sent */
struct avdtp_sep_cfm {
void (*set_configuration) (struct avdtp *session,
struct avdtp_local_sep *lsep,
struct avdtp_stream *stream,
struct avdtp_error *err,
void *user_data);
void (*get_configuration) (struct avdtp *session,
struct avdtp_local_sep *lsep,
struct avdtp_stream *stream,
struct avdtp_error *err,
void *user_data);
void (*open) (struct avdtp *session, struct avdtp_local_sep *lsep,
struct avdtp_stream *stream, struct avdtp_error *err,
void *user_data);
void (*start) (struct avdtp *session, struct avdtp_local_sep *lsep,
struct avdtp_stream *stream, struct avdtp_error *err,
void *user_data);
void (*suspend) (struct avdtp *session, struct avdtp_local_sep *lsep,
struct avdtp_stream *stream,
struct avdtp_error *err, void *user_data);
void (*close) (struct avdtp *session, struct avdtp_local_sep *lsep,
struct avdtp_stream *stream,
struct avdtp_error *err, void *user_data);
void (*abort) (struct avdtp *session, struct avdtp_local_sep *lsep,
struct avdtp_stream *stream,
struct avdtp_error *err, void *user_data);
void (*reconfigure) (struct avdtp *session,
struct avdtp_local_sep *lsep,
struct avdtp_stream *stream,
struct avdtp_error *err, void *user_data);
void (*delay_report) (struct avdtp *session, struct avdtp_local_sep *lsep,
struct avdtp_stream *stream,
struct avdtp_error *err, void *user_data);
};
/*
* Callbacks for indicating when we received a new command. The return value
* indicates whether the command should be rejected or accepted
*/
struct avdtp_sep_ind {
gboolean (*get_capability) (struct avdtp *session,
struct avdtp_local_sep *sep,
GSList **caps, uint8_t *err,
void *user_data);
gboolean (*set_configuration) (struct avdtp *session,
struct avdtp_local_sep *lsep,
struct avdtp_stream *stream,
GSList *caps,
avdtp_set_configuration_cb cb,
void *user_data);
gboolean (*get_configuration) (struct avdtp *session,
struct avdtp_local_sep *lsep,
uint8_t *err, void *user_data);
gboolean (*open) (struct avdtp *session, struct avdtp_local_sep *lsep,
struct avdtp_stream *stream, uint8_t *err,
void *user_data);
gboolean (*start) (struct avdtp *session, struct avdtp_local_sep *lsep,
struct avdtp_stream *stream, uint8_t *err,
void *user_data);
gboolean (*suspend) (struct avdtp *session,
struct avdtp_local_sep *sep,
struct avdtp_stream *stream, uint8_t *err,
void *user_data);
gboolean (*close) (struct avdtp *session, struct avdtp_local_sep *sep,
struct avdtp_stream *stream, uint8_t *err,
void *user_data);
void (*abort) (struct avdtp *session, struct avdtp_local_sep *sep,
struct avdtp_stream *stream, uint8_t *err,
void *user_data);
gboolean (*reconfigure) (struct avdtp *session,
struct avdtp_local_sep *lsep,
uint8_t *err, void *user_data);
gboolean (*delayreport) (struct avdtp *session,
struct avdtp_local_sep *lsep,
uint8_t rseid, uint16_t delay,
uint8_t *err, void *user_data);
};
typedef void (*avdtp_discover_cb_t) (struct avdtp *session, GSList *seps,
struct avdtp_error *err, void *user_data);
typedef void (*avdtp_disconnect_cb_t) (void *user_data);
struct avdtp *avdtp_new(int fd, size_t imtu, size_t omtu, uint16_t version,
struct queue *lseps);
unsigned int avdtp_add_disconnect_cb(struct avdtp *session,
avdtp_disconnect_cb_t cb,
void *user_data);
gboolean avdtp_remove_disconnect_cb(struct avdtp *session, unsigned int id);
void avdtp_shutdown(struct avdtp *session);
void avdtp_unref(struct avdtp *session);
struct avdtp *avdtp_ref(struct avdtp *session);
struct avdtp_service_capability *avdtp_service_cap_new(uint8_t category,
const void *data,
int size);
struct avdtp_service_capability *avdtp_get_codec(struct avdtp_remote_sep *sep);
int avdtp_discover(struct avdtp *session, avdtp_discover_cb_t cb,
void *user_data);
gboolean avdtp_has_stream(struct avdtp *session, struct avdtp_stream *stream);
unsigned int avdtp_stream_add_cb(struct avdtp *session,
struct avdtp_stream *stream,
avdtp_stream_state_cb cb, void *data);
gboolean avdtp_stream_remove_cb(struct avdtp *session,
struct avdtp_stream *stream,
unsigned int id);
gboolean avdtp_stream_set_transport(struct avdtp_stream *stream, int fd,
size_t imtu, size_t omtu);
gboolean avdtp_stream_get_transport(struct avdtp_stream *stream, int *sock,
uint16_t *imtu, uint16_t *omtu,
GSList **caps);
struct avdtp_service_capability *avdtp_stream_get_codec(
struct avdtp_stream *stream);
gboolean avdtp_stream_has_capabilities(struct avdtp_stream *stream,
GSList *caps);
struct avdtp_remote_sep *avdtp_stream_get_remote_sep(
struct avdtp_stream *stream);
int avdtp_set_configuration(struct avdtp *session,
struct avdtp_remote_sep *rsep,
struct avdtp_local_sep *lsep,
GSList *caps,
struct avdtp_stream **stream);
int avdtp_get_configuration(struct avdtp *session,
struct avdtp_stream *stream);
int avdtp_open(struct avdtp *session, struct avdtp_stream *stream);
int avdtp_start(struct avdtp *session, struct avdtp_stream *stream);
int avdtp_suspend(struct avdtp *session, struct avdtp_stream *stream);
int avdtp_close(struct avdtp *session, struct avdtp_stream *stream,
gboolean immediate);
int avdtp_abort(struct avdtp *session, struct avdtp_stream *stream);
int avdtp_delay_report(struct avdtp *session, struct avdtp_stream *stream,
uint16_t delay);
struct avdtp_local_sep *avdtp_register_sep(struct queue *lseps, uint8_t type,
uint8_t media_type,
uint8_t codec_type,
gboolean delay_reporting,
struct avdtp_sep_ind *ind,
struct avdtp_sep_cfm *cfm,
void *user_data);
void avdtp_sep_set_vendor_codec(struct avdtp_local_sep *sep, uint32_t vendor_id,
uint16_t codec_id);
/* Find a matching pair of local and remote SEP ID's */
struct avdtp_remote_sep *avdtp_find_remote_sep(struct avdtp *session,
struct avdtp_local_sep *lsep);
int avdtp_unregister_sep(struct queue *lseps, struct avdtp_local_sep *sep);
avdtp_state_t avdtp_sep_get_state(struct avdtp_local_sep *sep);
void avdtp_error_init(struct avdtp_error *err, uint8_t type, int id);
const char *avdtp_strerror(struct avdtp_error *err);
uint8_t avdtp_error_category(struct avdtp_error *err);
int avdtp_error_error_code(struct avdtp_error *err);
int avdtp_error_posix_errno(struct avdtp_error *err);
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