/** @file
 *  @brief Internal APIs for Bluetooth Handsfree profile handling.
 */

/*
 * Copyright (c) 2015-2016 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#define BT_HFP_MAX_MTU       140
#define BT_HF_CLIENT_MAX_PDU BT_HFP_MAX_MTU

/* HFP AG Features */
#define BT_HFP_AG_FEATURE_3WAY_CALL   0x00000001 /* Three-way calling */
#define BT_HFP_AG_FEATURE_ECNR        0x00000002 /* EC and/or NR function */
#define BT_HFP_AG_FEATURE_VOICE_RECG  0x00000004 /* Voice recognition */
#define BT_HFP_AG_INBAND_RING_TONE    0x00000008 /* In-band ring capability */
#define BT_HFP_AG_VOICE_TAG           0x00000010 /* Attach no. to voice tag */
#define BT_HFP_AG_FEATURE_REJECT_CALL 0x00000020 /* Ability to reject call */
#define BT_HFP_AG_FEATURE_ECS         0x00000040 /* Enhanced call status */
#define BT_HFP_AG_FEATURE_ECC         0x00000080 /* Enhanced call control */
#define BT_HFP_AG_FEATURE_EXT_ERR     0x00000100 /* Extented error codes */
#define BT_HFP_AG_FEATURE_CODEC_NEG   0x00000200 /* Codec negotiation */
#define BT_HFP_AG_FEATURE_HF_IND      0x00000400 /* HF Indicators */
#define BT_HFP_AG_FEARTURE_ESCO_S4    0x00000800 /* eSCO S4 Settings */

/* HFP HF Features */
#define BT_HFP_HF_FEATURE_ECNR       0x00000001 /* EC and/or NR */
#define BT_HFP_HF_FEATURE_3WAY_CALL  0x00000002 /* Three-way calling */
#define BT_HFP_HF_FEATURE_CLI        0x00000004 /* CLI presentation */
#define BT_HFP_HF_FEATURE_VOICE_RECG 0x00000008 /* Voice recognition */
#define BT_HFP_HF_FEATURE_VOLUME     0x00000010 /* Remote volume control */
#define BT_HFP_HF_FEATURE_ECS        0x00000020 /* Enhanced call status */
#define BT_HFP_HF_FEATURE_ECC        0x00000040 /* Enhanced call control */
#define BT_HFP_HF_FEATURE_CODEC_NEG  0x00000080 /* CODEC Negotiation */
#define BT_HFP_HF_FEATURE_HF_IND     0x00000100 /* HF Indicators */
#define BT_HFP_HF_FEATURE_ESCO_S4    0x00000200 /* eSCO S4 Settings */

/* HFP HF Supported features */
#define BT_HFP_HF_SUPPORTED_FEATURES (BT_HFP_HF_FEATURE_ECNR |   \
                                      BT_HFP_HF_FEATURE_CLI |    \
                                      BT_HFP_HF_FEATURE_VOLUME | \
                                      BT_HFP_HF_FEATURE_CODEC_NEG)

#define HF_MAX_BUF_LEN       BT_HF_CLIENT_MAX_PDU
#define HF_MAX_AG_INDICATORS 20

struct bt_hfp_hf {
    struct bt_rfcomm_dlc rfcomm_dlc;
    char hf_buffer[HF_MAX_BUF_LEN];
    struct at_client at;
    uint32_t hf_features;
    uint32_t ag_features;
    int8_t ind_table[HF_MAX_AG_INDICATORS];
};

enum hfp_hf_ag_indicators {
    HF_SERVICE_IND,
    HF_CALL_IND,
    HF_CALL_SETUP_IND,
    HF_CALL_HELD_IND,
    HF_SINGNAL_IND,
    HF_ROAM_IND,
    HF_BATTERY_IND
};
