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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2022 Intel Corporation. All rights reserved.
*
*/
#include <stdbool.h>
#include <inttypes.h>
#ifndef __packed
#define __packed __attribute__((packed))
#endif
#define BT_BAP_SINK 0x01
#define BT_BAP_SOURCE 0x02
#define BT_BAP_STREAM_STATE_IDLE 0x00
#define BT_BAP_STREAM_STATE_CONFIG 0x01
#define BT_BAP_STREAM_STATE_QOS 0x02
#define BT_BAP_STREAM_STATE_ENABLING 0x03
#define BT_BAP_STREAM_STATE_STREAMING 0x04
#define BT_BAP_STREAM_STATE_DISABLING 0x05
#define BT_BAP_STREAM_STATE_RELEASING 0x06
#define BT_BAP_CONFIG_LATENCY_LOW 0x01
#define BT_BAP_CONFIG_LATENCY_BALANCED 0x02
#define BT_BAP_CONFIG_LATENCY_HIGH 0x03
#define BT_BAP_CONFIG_PHY_1M 0x01
#define BT_BAP_CONFIG_PHY_2M 0x02
#define BT_BAP_CONFIG_PHY_CODEC 0x03
struct bt_bap;
struct bt_bap_pac;
struct bt_bap_stream;
struct bt_bap_codec {
uint8_t id;
uint16_t cid;
uint16_t vid;
} __packed;
struct bt_ltv {
uint8_t len;
uint8_t type;
uint8_t value[0];
} __packed;
struct bt_bap_qos {
uint8_t cig_id;
uint8_t cis_id;
uint32_t interval; /* Frame interval */
uint8_t framing; /* Frame framing */
uint8_t phy; /* PHY */
uint16_t sdu; /* Maximum SDU Size */
uint8_t rtn; /* Retransmission Effort */
uint16_t latency; /* Transport Latency */
uint32_t delay; /* Presentation Delay */
uint8_t target_latency; /* Target Latency */
};
typedef void (*bt_bap_ready_func_t)(struct bt_bap *bap, void *user_data);
typedef void (*bt_bap_destroy_func_t)(void *user_data);
typedef void (*bt_bap_debug_func_t)(const char *str, void *user_data);
typedef void (*bt_bap_pac_func_t)(struct bt_bap_pac *pac, void *user_data);
typedef bool (*bt_bap_pac_foreach_t)(struct bt_bap_pac *lpac,
struct bt_bap_pac *rpac,
void *user_data);
typedef void (*bt_bap_pac_select_t)(struct bt_bap_pac *pac, int err,
struct iovec *caps,
struct iovec *metadata,
struct bt_bap_qos *qos,
void *user_data);
typedef void (*bt_bap_pac_config_t)(struct bt_bap_stream *stream, int err);
typedef void (*bt_bap_state_func_t)(struct bt_bap_stream *stream,
uint8_t old_state, uint8_t new_state,
void *user_data);
typedef void (*bt_bap_connecting_func_t)(struct bt_bap_stream *stream,
bool state, int fd,
void *user_data);
typedef void (*bt_bap_stream_func_t)(struct bt_bap_stream *stream,
uint8_t code, uint8_t reason,
void *user_data);
typedef void (*bt_bap_func_t)(struct bt_bap *bap, void *user_data);
/* Local PAC related functions */
struct bt_bap_pac_qos {
uint8_t framing;
uint8_t phy;
uint8_t rtn;
uint16_t latency;
uint32_t pd_min;
uint32_t pd_max;
uint32_t ppd_min;
uint32_t ppd_max;
};
struct bt_bap_pac *bt_bap_add_vendor_pac(struct gatt_db *db,
const char *name, uint8_t type,
uint8_t id, uint16_t cid, uint16_t vid,
struct bt_bap_pac_qos *qos,
struct iovec *data,
struct iovec *metadata);
struct bt_bap_pac *bt_bap_add_pac(struct gatt_db *db, const char *name,
uint8_t type, uint8_t id,
struct bt_bap_pac_qos *qos,
struct iovec *data,
struct iovec *metadata);
struct bt_bap_pac_ops {
int (*select)(struct bt_bap_pac *lpac, struct bt_bap_pac *rpac,
struct bt_bap_pac_qos *qos,
bt_bap_pac_select_t cb, void *cb_data, void *user_data);
int (*config)(struct bt_bap_stream *stream, struct iovec *cfg,
struct bt_bap_qos *qos, bt_bap_pac_config_t cb,
void *user_data);
void (*clear)(struct bt_bap_stream *stream, void *user_data);
};
bool bt_bap_pac_set_ops(struct bt_bap_pac *pac, struct bt_bap_pac_ops *ops,
void *user_data);
bool bt_bap_remove_pac(struct bt_bap_pac *pac);
uint8_t bt_bap_pac_get_type(struct bt_bap_pac *pac);
uint32_t bt_bap_pac_get_locations(struct bt_bap_pac *pac);
struct bt_bap_stream *bt_bap_pac_get_stream(struct bt_bap_pac *pac);
/* Session related function */
unsigned int bt_bap_register(bt_bap_func_t added, bt_bap_func_t removed,
void *user_data);
bool bt_bap_unregister(unsigned int id);
struct bt_bap *bt_bap_new(struct gatt_db *ldb, struct gatt_db *rdb);
bool bt_bap_set_user_data(struct bt_bap *bap, void *user_data);
void *bt_bap_get_user_data(struct bt_bap *bap);
struct bt_att *bt_bap_get_att(struct bt_bap *bap);
struct bt_bap *bt_bap_ref(struct bt_bap *bap);
void bt_bap_unref(struct bt_bap *bap);
bool bt_bap_attach(struct bt_bap *bap, struct bt_gatt_client *client);
void bt_bap_detach(struct bt_bap *bap);
bool bt_bap_set_debug(struct bt_bap *bap, bt_bap_debug_func_t cb,
void *user_data, bt_bap_destroy_func_t destroy);
bool bap_print_cc(void *data, size_t len, util_debug_func_t func,
void *user_data);
unsigned int bt_bap_pac_register(struct bt_bap *bap, bt_bap_pac_func_t added,
bt_bap_pac_func_t removed, void *user_data,
bt_bap_destroy_func_t destroy);
bool bt_bap_pac_unregister(struct bt_bap *bap, unsigned int id);
unsigned int bt_bap_ready_register(struct bt_bap *bap,
bt_bap_ready_func_t func, void *user_data,
bt_bap_destroy_func_t destroy);
bool bt_bap_ready_unregister(struct bt_bap *bap, unsigned int id);
unsigned int bt_bap_state_register(struct bt_bap *bap,
bt_bap_state_func_t func,
bt_bap_connecting_func_t connecting,
void *user_data, bt_bap_destroy_func_t destroy);
bool bt_bap_state_unregister(struct bt_bap *bap, unsigned int id);
const char *bt_bap_stream_statestr(uint8_t state);
void bt_bap_foreach_pac(struct bt_bap *bap, uint8_t type,
bt_bap_pac_foreach_t func, void *user_data);
int bt_bap_pac_get_vendor_codec(struct bt_bap_pac *pac, uint8_t *id,
uint16_t *cid, uint16_t *vid,
struct iovec **data, struct iovec **metadata);
int bt_bap_pac_get_codec(struct bt_bap_pac *pac, uint8_t *id,
struct iovec **data, struct iovec **metadata);
void bt_bap_pac_set_user_data(struct bt_bap_pac *pac, void *user_data);
void *bt_bap_pac_get_user_data(struct bt_bap_pac *pac);
/* Stream related functions */
int bt_bap_select(struct bt_bap_pac *lpac, struct bt_bap_pac *rpac,
bt_bap_pac_select_t func, void *user_data);
struct bt_bap_stream *bt_bap_stream_new(struct bt_bap *bap,
struct bt_bap_pac *lpac,
struct bt_bap_pac *rpac,
struct bt_bap_qos *pqos,
struct iovec *data);
struct bt_bap *bt_bap_stream_get_session(struct bt_bap_stream *stream);
uint8_t bt_bap_stream_get_state(struct bt_bap_stream *stream);
bool bt_bap_stream_set_user_data(struct bt_bap_stream *stream, void *user_data);
void *bt_bap_stream_get_user_data(struct bt_bap_stream *stream);
unsigned int bt_bap_stream_config(struct bt_bap_stream *stream,
struct bt_bap_qos *pqos,
struct iovec *data,
bt_bap_stream_func_t func,
void *user_data);
unsigned int bt_bap_stream_qos(struct bt_bap_stream *stream,
struct bt_bap_qos *qos,
bt_bap_stream_func_t func,
void *user_data);
unsigned int bt_bap_stream_enable(struct bt_bap_stream *stream,
bool enable_links,
struct iovec *metadata,
bt_bap_stream_func_t func,
void *user_data);
unsigned int bt_bap_stream_start(struct bt_bap_stream *stream,
bt_bap_stream_func_t func,
void *user_data);
unsigned int bt_bap_stream_disable(struct bt_bap_stream *stream,
bool disable_links,
bt_bap_stream_func_t func,
void *user_data);
unsigned int bt_bap_stream_stop(struct bt_bap_stream *stream,
bt_bap_stream_func_t func,
void *user_data);
unsigned int bt_bap_stream_metadata(struct bt_bap_stream *stream,
struct iovec *metadata,
bt_bap_stream_func_t func,
void *user_data);
unsigned int bt_bap_stream_release(struct bt_bap_stream *stream,
bt_bap_stream_func_t func,
void *user_data);
uint8_t bt_bap_stream_get_dir(struct bt_bap_stream *stream);
uint32_t bt_bap_stream_get_location(struct bt_bap_stream *stream);
struct iovec *bt_bap_stream_get_config(struct bt_bap_stream *stream);
struct bt_bap_qos *bt_bap_stream_get_qos(struct bt_bap_stream *stream);
struct iovec *bt_bap_stream_get_metadata(struct bt_bap_stream *stream);
struct io *bt_bap_stream_get_io(struct bt_bap_stream *stream);
bool bt_bap_stream_set_io(struct bt_bap_stream *stream, int fd);
int bt_bap_stream_cancel(struct bt_bap_stream *stream, unsigned int id);
int bt_bap_stream_io_link(struct bt_bap_stream *stream,
struct bt_bap_stream *link);
struct queue *bt_bap_stream_io_get_links(struct bt_bap_stream *stream);
bool bt_bap_stream_io_get_qos(struct bt_bap_stream *stream,
struct bt_bap_qos **in,
struct bt_bap_qos **out);
uint8_t bt_bap_stream_io_dir(struct bt_bap_stream *stream);
int bt_bap_stream_io_connecting(struct bt_bap_stream *stream, int fd);
bool bt_bap_stream_io_is_connecting(struct bt_bap_stream *stream, int *fd);
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