/*
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* BlueALSA - rfcomm.h
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* Copyright (c) 2016-2018 Arkadiusz Bokowy
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*
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* This file is a part of bluez-alsa.
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*
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* This project is licensed under the terms of the MIT license.
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*
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*/
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#ifndef BLUEALSA_RFCOMM_H_
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#define BLUEALSA_RFCOMM_H_
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#include "at.h"
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#include "hfp.h"
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#include "transport.h"
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/* Number of retries during the SLC stage. */
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#define RFCOMM_SLC_RETRIES 10
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/* Timeout for the command acknowledgment. */
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#define RFCOMM_SLC_TIMEOUT 1000
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/**
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* Structure used for RFCOMM state synchronization. */
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struct rfcomm_conn {
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/* service level connection state */
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enum hfp_state state;
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enum hfp_state state_prev;
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/* handler used for sync response dispatching */
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const struct rfcomm_handler *handler;
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/* number of failed communication attempts */
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int retries;
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/* 0-based indicators index */
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enum hfp_ind hfp_ind_map[20];
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/* variables used for AG<->HF sync */
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uint8_t spk_gain;
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uint8_t mic_gain;
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/* associated transport */
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struct ba_transport *t;
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};
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/**
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* Callback function used for RFCOMM AT message dispatching. */
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typedef int rfcomm_callback(struct rfcomm_conn *c, const struct bt_at *at);
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/**
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* AT message dispatching handler. */
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struct rfcomm_handler {
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enum bt_at_type type;
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const char *command;
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rfcomm_callback *callback;
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};
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void *rfcomm_thread(void *arg);
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#endif
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