mirror of
https://git.kernel.org/pub/scm/bluetooth/bluez.git
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285 lines
9.5 KiB
C
285 lines
9.5 KiB
C
/*
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*
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* BlueZ - Bluetooth protocol stack for Linux
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*
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* Copyright (C) 2006-2010 Nokia Corporation
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* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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struct avdtp;
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struct avdtp_stream;
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struct avdtp_local_sep;
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struct avdtp_remote_sep;
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struct avdtp_error {
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uint8_t category;
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union {
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uint8_t error_code;
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int posix_errno;
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} err;
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};
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/* SEP capability categories */
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#define AVDTP_MEDIA_TRANSPORT 0x01
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#define AVDTP_REPORTING 0x02
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#define AVDTP_RECOVERY 0x03
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#define AVDTP_CONTENT_PROTECTION 0x04
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#define AVDTP_HEADER_COMPRESSION 0x05
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#define AVDTP_MULTIPLEXING 0x06
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#define AVDTP_MEDIA_CODEC 0x07
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#define AVDTP_DELAY_REPORTING 0x08
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#define AVDTP_ERRNO 0xff
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/* AVDTP error definitions */
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#define AVDTP_BAD_HEADER_FORMAT 0x01
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#define AVDTP_BAD_LENGTH 0x11
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#define AVDTP_BAD_ACP_SEID 0x12
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#define AVDTP_SEP_IN_USE 0x13
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#define AVDTP_SEP_NOT_IN_USE 0x14
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#define AVDTP_BAD_SERV_CATEGORY 0x17
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#define AVDTP_BAD_PAYLOAD_FORMAT 0x18
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#define AVDTP_NOT_SUPPORTED_COMMAND 0x19
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#define AVDTP_INVALID_CAPABILITIES 0x1A
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#define AVDTP_BAD_RECOVERY_TYPE 0x22
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#define AVDTP_BAD_MEDIA_TRANSPORT_FORMAT 0x23
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#define AVDTP_BAD_RECOVERY_FORMAT 0x25
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#define AVDTP_BAD_ROHC_FORMAT 0x26
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#define AVDTP_BAD_CP_FORMAT 0x27
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#define AVDTP_BAD_MULTIPLEXING_FORMAT 0x28
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#define AVDTP_UNSUPPORTED_CONFIGURATION 0x29
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#define AVDTP_BAD_STATE 0x31
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/* SEP types definitions */
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#define AVDTP_SEP_TYPE_SOURCE 0x00
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#define AVDTP_SEP_TYPE_SINK 0x01
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/* Media types definitions */
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#define AVDTP_MEDIA_TYPE_AUDIO 0x00
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#define AVDTP_MEDIA_TYPE_VIDEO 0x01
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#define AVDTP_MEDIA_TYPE_MULTIMEDIA 0x02
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typedef enum {
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AVDTP_STATE_IDLE,
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AVDTP_STATE_CONFIGURED,
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AVDTP_STATE_OPEN,
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AVDTP_STATE_STREAMING,
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AVDTP_STATE_CLOSING,
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AVDTP_STATE_ABORTING,
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} avdtp_state_t;
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struct avdtp_service_capability {
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uint8_t category;
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uint8_t length;
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uint8_t data[0];
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} __attribute__ ((packed));
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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struct avdtp_media_codec_capability {
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uint8_t rfa0:4;
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uint8_t media_type:4;
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uint8_t media_codec_type;
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uint8_t data[0];
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} __attribute__ ((packed));
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#elif __BYTE_ORDER == __BIG_ENDIAN
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struct avdtp_media_codec_capability {
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uint8_t media_type:4;
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uint8_t rfa0:4;
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uint8_t media_codec_type;
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uint8_t data[0];
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} __attribute__ ((packed));
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#else
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#error "Unknown byte order"
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#endif
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typedef void (*avdtp_stream_state_cb) (struct avdtp_stream *stream,
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avdtp_state_t old_state,
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avdtp_state_t new_state,
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struct avdtp_error *err,
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void *user_data);
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typedef void (*avdtp_set_configuration_cb) (struct avdtp *session,
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struct avdtp_stream *stream,
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struct avdtp_error *err);
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/* Callbacks for when a reply is received to a command that we sent */
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struct avdtp_sep_cfm {
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void (*set_configuration) (struct avdtp *session,
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struct avdtp_local_sep *lsep,
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struct avdtp_stream *stream,
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struct avdtp_error *err,
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void *user_data);
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void (*get_configuration) (struct avdtp *session,
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struct avdtp_local_sep *lsep,
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struct avdtp_stream *stream,
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struct avdtp_error *err,
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void *user_data);
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void (*open) (struct avdtp *session, struct avdtp_local_sep *lsep,
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struct avdtp_stream *stream, struct avdtp_error *err,
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void *user_data);
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void (*start) (struct avdtp *session, struct avdtp_local_sep *lsep,
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struct avdtp_stream *stream, struct avdtp_error *err,
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void *user_data);
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void (*suspend) (struct avdtp *session, struct avdtp_local_sep *lsep,
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struct avdtp_stream *stream,
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struct avdtp_error *err, void *user_data);
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void (*close) (struct avdtp *session, struct avdtp_local_sep *lsep,
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struct avdtp_stream *stream,
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struct avdtp_error *err, void *user_data);
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void (*abort) (struct avdtp *session, struct avdtp_local_sep *lsep,
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struct avdtp_stream *stream,
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struct avdtp_error *err, void *user_data);
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void (*reconfigure) (struct avdtp *session,
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struct avdtp_local_sep *lsep,
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struct avdtp_stream *stream,
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struct avdtp_error *err, void *user_data);
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void (*delay_report) (struct avdtp *session, struct avdtp_local_sep *lsep,
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struct avdtp_stream *stream,
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struct avdtp_error *err, void *user_data);
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};
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/*
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* Callbacks for indicating when we received a new command. The return value
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* indicates whether the command should be rejected or accepted
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*/
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struct avdtp_sep_ind {
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gboolean (*get_capability) (struct avdtp *session,
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struct avdtp_local_sep *sep,
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GSList **caps, uint8_t *err,
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void *user_data);
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gboolean (*set_configuration) (struct avdtp *session,
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struct avdtp_local_sep *lsep,
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struct avdtp_stream *stream,
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GSList *caps,
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avdtp_set_configuration_cb cb,
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void *user_data);
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gboolean (*get_configuration) (struct avdtp *session,
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struct avdtp_local_sep *lsep,
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uint8_t *err, void *user_data);
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gboolean (*open) (struct avdtp *session, struct avdtp_local_sep *lsep,
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struct avdtp_stream *stream, uint8_t *err,
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void *user_data);
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gboolean (*start) (struct avdtp *session, struct avdtp_local_sep *lsep,
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struct avdtp_stream *stream, uint8_t *err,
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void *user_data);
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gboolean (*suspend) (struct avdtp *session,
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struct avdtp_local_sep *sep,
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struct avdtp_stream *stream, uint8_t *err,
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void *user_data);
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gboolean (*close) (struct avdtp *session, struct avdtp_local_sep *sep,
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struct avdtp_stream *stream, uint8_t *err,
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void *user_data);
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void (*abort) (struct avdtp *session, struct avdtp_local_sep *sep,
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struct avdtp_stream *stream, uint8_t *err,
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void *user_data);
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gboolean (*reconfigure) (struct avdtp *session,
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struct avdtp_local_sep *lsep,
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uint8_t *err, void *user_data);
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gboolean (*delayreport) (struct avdtp *session,
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struct avdtp_local_sep *lsep,
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uint8_t rseid, uint16_t delay,
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uint8_t *err, void *user_data);
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};
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typedef void (*avdtp_discover_cb_t) (struct avdtp *session, GSList *seps,
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struct avdtp_error *err, void *user_data);
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typedef void (*avdtp_disconnect_cb_t) (void *user_data);
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struct avdtp *avdtp_new(int fd, size_t imtu, size_t omtu, uint16_t version);
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unsigned int avdtp_add_disconnect_cb(struct avdtp *session,
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avdtp_disconnect_cb_t cb,
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void *user_data);
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gboolean avdtp_remove_disconnect_cb(struct avdtp *session, unsigned int id);
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void avdtp_shutdown(struct avdtp *session);
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void avdtp_unref(struct avdtp *session);
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struct avdtp *avdtp_ref(struct avdtp *session);
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struct avdtp_service_capability *avdtp_service_cap_new(uint8_t category,
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void *data, int size);
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struct avdtp_service_capability *avdtp_get_codec(struct avdtp_remote_sep *sep);
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int avdtp_discover(struct avdtp *session, avdtp_discover_cb_t cb,
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void *user_data);
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gboolean avdtp_has_stream(struct avdtp *session, struct avdtp_stream *stream);
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unsigned int avdtp_stream_add_cb(struct avdtp *session,
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struct avdtp_stream *stream,
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avdtp_stream_state_cb cb, void *data);
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gboolean avdtp_stream_remove_cb(struct avdtp *session,
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struct avdtp_stream *stream,
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unsigned int id);
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gboolean avdtp_stream_set_transport(struct avdtp_stream *stream, int fd,
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size_t imtu, size_t omtu);
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gboolean avdtp_stream_get_transport(struct avdtp_stream *stream, int *sock,
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uint16_t *imtu, uint16_t *omtu,
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GSList **caps);
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struct avdtp_service_capability *avdtp_stream_get_codec(
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struct avdtp_stream *stream);
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gboolean avdtp_stream_has_capabilities(struct avdtp_stream *stream,
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GSList *caps);
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struct avdtp_remote_sep *avdtp_stream_get_remote_sep(
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struct avdtp_stream *stream);
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int avdtp_set_configuration(struct avdtp *session,
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struct avdtp_remote_sep *rsep,
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struct avdtp_local_sep *lsep,
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GSList *caps,
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struct avdtp_stream **stream);
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int avdtp_get_configuration(struct avdtp *session,
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struct avdtp_stream *stream);
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int avdtp_open(struct avdtp *session, struct avdtp_stream *stream);
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int avdtp_start(struct avdtp *session, struct avdtp_stream *stream);
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int avdtp_suspend(struct avdtp *session, struct avdtp_stream *stream);
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int avdtp_close(struct avdtp *session, struct avdtp_stream *stream,
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gboolean immediate);
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int avdtp_abort(struct avdtp *session, struct avdtp_stream *stream);
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int avdtp_delay_report(struct avdtp *session, struct avdtp_stream *stream,
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uint16_t delay);
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struct avdtp_local_sep *avdtp_register_sep(uint8_t type, uint8_t media_type,
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uint8_t codec_type,
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gboolean delay_reporting,
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struct avdtp_sep_ind *ind,
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struct avdtp_sep_cfm *cfm,
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void *user_data);
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/* Find a matching pair of local and remote SEP ID's */
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struct avdtp_remote_sep *avdtp_find_remote_sep(struct avdtp *session,
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struct avdtp_local_sep *lsep);
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int avdtp_unregister_sep(struct avdtp_local_sep *sep);
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avdtp_state_t avdtp_sep_get_state(struct avdtp_local_sep *sep);
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void avdtp_error_init(struct avdtp_error *err, uint8_t type, int id);
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const char *avdtp_strerror(struct avdtp_error *err);
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uint8_t avdtp_error_category(struct avdtp_error *err);
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int avdtp_error_error_code(struct avdtp_error *err);
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int avdtp_error_posix_errno(struct avdtp_error *err);
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