a2mp.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *
 *  BlueZ - Bluetooth protocol stack for Linux
 *
 *  Copyright (C) 2012  Intel Corporation. All rights reserved.
 *  Copyright (c) 2012  Code Aurora Forum. All rights reserved.
 *
 */

#ifndef __A2MP_H
#define __A2MP_H

#ifdef __cplusplus
extern "C" {
#endif

/* A2MP Protocol */

/* A2MP command codes */

#define A2MP_COMMAND_REJ    0x01
#define A2MP_DISCOVER_REQ   0x02
#define A2MP_DISCOVER_RSP   0x03
#define A2MP_CHANGE_NOTIFY  0x04
#define A2MP_CHANGE_RSP     0x05
#define A2MP_INFO_REQ       0x06
#define A2MP_INFO_RSP       0x07
#define A2MP_ASSOC_REQ      0x08
#define A2MP_ASSOC_RSP      0x09
#define A2MP_CREATE_REQ     0x0a
#define A2MP_CREATE_RSP     0x0b
#define A2MP_DISCONN_REQ    0x0c
#define A2MP_DISCONN_RSP    0x0d

struct a2mp_hdr {
    uint8_t     code;
    uint8_t     ident;
    uint16_t    len;
} __attribute__ ((packed));
#define A2MP_HDR_SIZE 4

struct a2mp_command_rej {
    uint16_t    reason;
} __attribute__ ((packed));

struct a2mp_discover_req {
    uint16_t    mtu;
    uint16_t    mask;
} __attribute__ ((packed));

struct a2mp_ctrl {
    uint8_t     id;
    uint8_t     type;
    uint8_t     status;
} __attribute__ ((packed));

struct a2mp_discover_rsp {
    uint16_t    mtu;
    uint16_t    mask;
    struct a2mp_ctrl ctrl_list[0];
} __attribute__ ((packed));

struct a2mp_info_req {
    uint8_t     id;
} __attribute__ ((packed));

struct a2mp_info_rsp {
    uint8_t     id;
    uint8_t     status;
    uint32_t    total_bw;
    uint32_t    max_bw;
    uint32_t    min_latency;
    uint16_t    pal_caps;
    uint16_t    assoc_size;
} __attribute__ ((packed));

struct a2mp_assoc_req {
    uint8_t     id;
} __attribute__ ((packed));

struct a2mp_assoc_rsp {
    uint8_t     id;
    uint8_t     status;
    uint8_t     assoc_data[0];
} __attribute__ ((packed));

struct a2mp_create_req {
    uint8_t     local_id;
    uint8_t     remote_id;
    uint8_t     assoc_data[0];
} __attribute__ ((packed));

struct a2mp_create_rsp {
    uint8_t     local_id;
    uint8_t     remote_id;
    uint8_t     status;
} __attribute__ ((packed));

struct a2mp_disconn_req {
    uint8_t     local_id;
    uint8_t     remote_id;
} __attribute__ ((packed));

struct a2mp_disconn_rsp {
    uint8_t     local_id;
    uint8_t     remote_id;
    uint8_t     status;
} __attribute__ ((packed));

#define A2MP_COMMAND_NOT_RECOGNIZED 0x0000

/* AMP controller status */
#define AMP_CTRL_POWERED_DOWN       0x00
#define AMP_CTRL_BLUETOOTH_ONLY     0x01
#define AMP_CTRL_NO_CAPACITY        0x02
#define AMP_CTRL_LOW_CAPACITY       0x03
#define AMP_CTRL_MEDIUM_CAPACITY    0x04
#define AMP_CTRL_HIGH_CAPACITY      0x05
#define AMP_CTRL_FULL_CAPACITY      0x06

/* A2MP response status */
#define A2MP_STATUS_SUCCESS             0x00
#define A2MP_STATUS_INVALID_CTRL_ID         0x01
#define A2MP_STATUS_UNABLE_START_LINK_CREATION      0x02
#define A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS     0x02
#define A2MP_STATUS_COLLISION_OCCURED           0x03
#define A2MP_STATUS_DISCONN_REQ_RECVD           0x04
#define A2MP_STATUS_PHYS_LINK_EXISTS            0x05
#define A2MP_STATUS_SECURITY_VIOLATION          0x06

#ifdef __cplusplus
}
#endif

#endif /* __A2MP_H */