1 /** @file 2 * @brief Internal APIs for Bluetooth Handsfree profile handling. 3 */ 4 5 /* 6 * Copyright (c) 2015-2016 Intel Corporation 7 * 8 * SPDX-License-Identifier: Apache-2.0 9 */ 10 11 #define BT_HFP_MAX_MTU 140 12 #define BT_HF_CLIENT_MAX_PDU BT_HFP_MAX_MTU 13 14 /* HFP AG Features */ 15 #define BT_HFP_AG_FEATURE_3WAY_CALL 0x00000001 /* Three-way calling */ 16 #define BT_HFP_AG_FEATURE_ECNR 0x00000002 /* EC and/or NR function */ 17 #define BT_HFP_AG_FEATURE_VOICE_RECG 0x00000004 /* Voice recognition */ 18 #define BT_HFP_AG_FEATURE_INBAND_RINGTONE 0x00000008 /* In-band ring capability */ 19 #define BT_HFP_AG_FEATURE_VOICE_TAG 0x00000010 /* Attach no. to voice tag */ 20 #define BT_HFP_AG_FEATURE_REJECT_CALL 0x00000020 /* Ability to reject call */ 21 #define BT_HFP_AG_FEATURE_ECS 0x00000040 /* Enhanced call status */ 22 #define BT_HFP_AG_FEATURE_ECC 0x00000080 /* Enhanced call control */ 23 #define BT_HFP_AG_FEATURE_EXT_ERR 0x00000100 /* Extended error codes */ 24 #define BT_HFP_AG_FEATURE_CODEC_NEG 0x00000200 /* Codec negotiation */ 25 #define BT_HFP_AG_FEATURE_HF_IND 0x00000400 /* HF Indicators */ 26 #define BT_HFP_AG_FEATURE_ESCO_S4 0x00000800 /* eSCO S4 Settings */ 27 #define BT_HFP_AG_FEATURE_ENH_VOICE_RECG 0x00001000 /* Enhanced Voice Recognition Status */ 28 #define BT_HFP_AG_FEATURE_VOICE_RECG_TEXT 0x00002000 /* Voice Recognition Text */ 29 30 /* HFP HF Features */ 31 #define BT_HFP_HF_FEATURE_ECNR 0x00000001 /* EC and/or NR function */ 32 #define BT_HFP_HF_FEATURE_3WAY_CALL 0x00000002 /* Three-way calling */ 33 #define BT_HFP_HF_FEATURE_CLI 0x00000004 /* CLI presentation */ 34 #define BT_HFP_HF_FEATURE_VOICE_RECG 0x00000008 /* Voice recognition */ 35 #define BT_HFP_HF_FEATURE_VOLUME 0x00000010 /* Remote volume control */ 36 #define BT_HFP_HF_FEATURE_ECS 0x00000020 /* Enhanced call status */ 37 #define BT_HFP_HF_FEATURE_ECC 0x00000040 /* Enhanced call control */ 38 #define BT_HFP_HF_FEATURE_CODEC_NEG 0x00000080 /* CODEC Negotiation */ 39 #define BT_HFP_HF_FEATURE_HF_IND 0x00000100 /* HF Indicators */ 40 #define BT_HFP_HF_FEATURE_ESCO_S4 0x00000200 /* eSCO S4 Settings */ 41 #define BT_HFP_HF_FEATURE_ENH_VOICE_RECG 0x00000400 /* Enhanced Voice Recognition Status */ 42 #define BT_HFP_HF_FEATURE_VOICE_RECG_TEXT 0x00000800 /* Voice Recognition Text */ 43 44 /* HFP HF Supported features */ 45 #define BT_HFP_HF_SUPPORTED_FEATURES (BT_HFP_HF_FEATURE_CLI | BT_HFP_HF_FEATURE_VOLUME) 46 47 #define HF_MAX_BUF_LEN BT_HF_CLIENT_MAX_PDU 48 #define HF_MAX_AG_INDICATORS 20 49 50 struct bt_hfp_hf { 51 struct bt_rfcomm_dlc rfcomm_dlc; 52 /* ACL connection handle */ 53 struct bt_conn *acl; 54 /* SCO Channel */ 55 struct bt_sco_chan chan; 56 char hf_buffer[HF_MAX_BUF_LEN]; 57 struct at_client at; 58 uint32_t hf_features; 59 uint32_t ag_features; 60 int8_t ind_table[HF_MAX_AG_INDICATORS]; 61 }; 62 63 enum hfp_hf_ag_indicators { 64 HF_SERVICE_IND, 65 HF_CALL_IND, 66 HF_CALL_SETUP_IND, 67 HF_CALL_HELD_IND, 68 HF_SINGNAL_IND, 69 HF_ROAM_IND, 70 HF_BATTERY_IND 71 }; 72 73 /* HFP call setup status */ 74 #define BT_HFP_CALL_SETUP_NONE 0 75 #define BT_HFP_CALL_SETUP_INCOMING 1 76 #define BT_HFP_CALL_SETUP_OUTGOING 2 77 #define BT_HFP_CALL_SETUP_REMOTE_ALERTING 3 78
