amp.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *
 *  BlueZ - Bluetooth protocol stack for Linux
 *
 *  Copyright (C) 2010-2011 Code Aurora Forum.  All rights reserved.
 *  Copyright (C) 2012 Intel Corporation.
 *
 */

#ifndef __AMP_H
#define __AMP_H

#ifdef __cplusplus
extern "C" {
#endif

#define AMP_MGR_CID 0x03

/* AMP manager codes */
#define AMP_COMMAND_REJ     0x01
#define AMP_DISCOVER_REQ    0x02
#define AMP_DISCOVER_RSP    0x03
#define AMP_CHANGE_NOTIFY   0x04
#define AMP_CHANGE_RSP      0x05
#define AMP_INFO_REQ        0x06
#define AMP_INFO_RSP        0x07
#define AMP_ASSOC_REQ       0x08
#define AMP_ASSOC_RSP       0x09
#define AMP_LINK_REQ        0x0a
#define AMP_LINK_RSP        0x0b
#define AMP_DISCONN_REQ     0x0c
#define AMP_DISCONN_RSP     0x0d

typedef struct {
    uint8_t     code;
    uint8_t     ident;
    uint16_t    len;
} __attribute__ ((packed)) amp_mgr_hdr;
#define AMP_MGR_HDR_SIZE 4

/* AMP ASSOC structure */
typedef struct {
    uint8_t     type_id;
    uint16_t    len;
    uint8_t     data[0];
} __attribute__ ((packed)) amp_assoc_tlv;

typedef struct {
    uint16_t    reason;
} __attribute__ ((packed)) amp_cmd_rej_parms;

typedef struct {
    uint16_t    mtu;
    uint16_t    mask;
} __attribute__ ((packed)) amp_discover_req_parms;

typedef struct {
    uint16_t    mtu;
    uint16_t    mask;
    uint8_t     controller_list[0];
} __attribute__ ((packed)) amp_discover_rsp_parms;

typedef struct {
    uint8_t     id;
} __attribute__ ((packed)) amp_info_req_parms;

typedef struct {
    uint8_t     id;
    uint8_t     status;
    uint32_t    total_bandwidth;
    uint32_t    max_bandwidth;
    uint32_t    min_latency;
    uint16_t    pal_caps;
    uint16_t    assoc_size;
} __attribute__ ((packed)) amp_info_rsp_parms;

typedef struct {
    uint8_t     id;
    uint8_t     status;
    amp_assoc_tlv   assoc;
} __attribute__ ((packed)) amp_assoc_rsp_parms;

typedef struct {
    uint8_t     local_id;
    uint8_t     remote_id;
    amp_assoc_tlv   assoc;
} __attribute__ ((packed)) amp_link_req_parms;

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

typedef struct {
    uint8_t     local_id;
    uint8_t     remote_id;
} __attribute__ ((packed)) amp_disconn_req_parms;

#define A2MP_MAC_ADDR_TYPE      1
#define A2MP_PREF_CHANLIST_TYPE     2
#define A2MP_CONNECTED_CHAN     3
#define A2MP_PAL_CAP_TYPE       4
#define A2MP_PAL_VER_INFO       5

struct amp_tlv {
    uint8_t type;
    uint16_t len;
    uint8_t val[0];
} __attribute__ ((packed));

struct amp_pal_ver {
    uint8_t ver;
    uint16_t company_id;
    uint16_t sub_ver;
} __attribute__ ((packed));

struct amp_country_triplet {
    union {
        struct {
            uint8_t first_channel;
            uint8_t num_channels;
            int8_t max_power;
        } __attribute__ ((packed)) chans;
        struct {
            uint8_t reg_extension_id;
            uint8_t reg_class;
            uint8_t coverage_class;
        } __attribute__ ((packed)) ext;
    };
} __attribute__ ((packed));

struct amp_chan_list {
    uint8_t country_code[3];
    struct amp_country_triplet triplets[0];
} __attribute__ ((packed));

#define AMP_COMMAND_NOT_RECOGNIZED 0x0000

/* AMP controller status */
#define AMP_CT_POWERED_DOWN     0x00
#define AMP_CT_BLUETOOTH_ONLY       0x01
#define AMP_CT_NO_CAPACITY      0x02
#define AMP_CT_LOW_CAPACITY     0x03
#define AMP_CT_MEDIUM_CAPACITY      0x04
#define AMP_CT_HIGH_CAPACITY        0x05
#define AMP_CT_FULL_CAPACITY        0x06

/* AMP response status */
#define AMP_STATUS_SUCCESS              0x00
#define AMP_STATUS_INVALID_CTRL_ID          0x01
#define AMP_STATUS_UNABLE_START_LINK_CREATION       0x02
#define AMP_STATUS_NO_PHYSICAL_LINK_EXISTS      0x02
#define AMP_STATUS_COLLISION_OCCURED            0x03
#define AMP_STATUS_DISCONN_REQ_RECVD            0x04
#define AMP_STATUS_PHYS_LINK_EXISTS         0x05
#define AMP_STATUS_SECURITY_VIOLATION           0x06

#ifdef __cplusplus
}
#endif

#endif /* __AMP_H */