subsys/bluetooth/host/hfp_internal.h

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

/*
 * Copyright (c) 2015-2016 Intel Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#define BLUETOOTH_HFP_MAX_MTU           140
#define BLUETOOTH_HF_CLIENT_MAX_PDU	20

/* 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_CLI | \
					 BT_HFP_HF_FEATURE_VOLUME)

#define HF_MAX_BUF_LEN 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;
};