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/*
* SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Unlicense OR CC0-1.0
*/
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include "esp_log.h"
#include "bt_app_core.h"
#include "bt_app_hf.h"
#include "esp_bt_main.h"
#include "esp_bt_device.h"
#include "esp_gap_bt_api.h"
#include "esp_hf_client_api.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/queue.h"
#include "freertos/semphr.h"
#include "freertos/ringbuf.h"
#include "time.h"
#include "sys/time.h"
#include "sdkconfig.h"
const char *c_hf_evt_str[] = {
"CONNECTION_STATE_EVT", /*!< connection state changed event */
"AUDIO_STATE_EVT", /*!< audio connection state change event */
"VR_STATE_CHANGE_EVT", /*!< voice recognition state changed */
"CALL_IND_EVT", /*!< call indication event */
"CALL_SETUP_IND_EVT", /*!< call setup indication event */
"CALL_HELD_IND_EVT", /*!< call held indicator event */
"NETWORK_STATE_EVT", /*!< network state change event */
"SIGNAL_STRENGTH_IND_EVT", /*!< signal strength indication event */
"ROAMING_STATUS_IND_EVT", /*!< roaming status indication event */
"BATTERY_LEVEL_IND_EVT", /*!< battery level indication event */
"CURRENT_OPERATOR_EVT", /*!< current operator name event */
"RESP_AND_HOLD_EVT", /*!< response and hold event */
"CLIP_EVT", /*!< Calling Line Identification notification event */
"CALL_WAITING_EVT", /*!< call waiting notification */
"CLCC_EVT", /*!< listing current calls event */
"VOLUME_CONTROL_EVT", /*!< audio volume control event */
"AT_RESPONSE", /*!< audio volume control event */
"SUBSCRIBER_INFO_EVT", /*!< subscriber information event */
"INBAND_RING_TONE_EVT", /*!< in-band ring tone settings */
"LAST_VOICE_TAG_NUMBER_EVT", /*!< requested number from AG event */
"RING_IND_EVT", /*!< ring indication event */
"PKT_STAT_EVT", /*!< requested number of packet status event */
"PROF_STATE_EVT", /*!< Indicate HF CLIENT init or deinit complete */
};
// esp_hf_client_connection_state_t
const char *c_connection_state_str[] = {
"disconnected",
"connecting",
"connected",
"slc_connected",
"disconnecting",
};
// esp_hf_client_audio_state_t
const char *c_audio_state_str[] = {
"disconnected",
"connecting",
"connected",
"connected_msbc",
};
/// esp_hf_vr_state_t
const char *c_vr_state_str[] = {
"disabled",
"enabled",
};
// esp_hf_service_availability_status_t
const char *c_service_availability_status_str[] = {
"unavailable",
"available",
};
// esp_hf_roaming_status_t
const char *c_roaming_status_str[] = {
"inactive",
"active",
};
// esp_hf_client_call_state_t
const char *c_call_str[] = {
"NO call in progress",
"call in progress",
};
// esp_hf_client_callsetup_t
const char *c_call_setup_str[] = {
"NONE",
"INCOMING",
"OUTGOING_DIALING",
"OUTGOING_ALERTING"
};
// esp_hf_client_callheld_t
const char *c_call_held_str[] = {
"NONE held",
"Held and Active",
"Held",
};
// esp_hf_response_and_hold_status_t
const char *c_resp_and_hold_str[] = {
"HELD",
"HELD ACCEPTED",
"HELD REJECTED",
};
// esp_hf_client_call_direction_t
const char *c_call_dir_str[] = {
"outgoing",
"incoming",
};
// esp_hf_client_call_state_t
const char *c_call_state_str[] = {
"active",
"held",
"dialing",
"alerting",
"incoming",
"waiting",
"held_by_resp_hold",
};
// esp_hf_current_call_mpty_type_t
const char *c_call_mpty_type_str[] = {
"single",
"multi",
};
// esp_hf_volume_control_target_t
const char *c_volume_control_target_str[] = {
"SPEAKER",
"MICROPHONE"
};
// esp_hf_at_response_code_t
const char *c_at_response_code_str[] = {
"OK",
"ERROR"
"ERR_NO_CARRIER",
"ERR_BUSY",
"ERR_NO_ANSWER",
"ERR_DELAYED",
"ERR_BLACKLILSTED",
"ERR_CME",
};
// esp_hf_subscriber_service_type_t
const char *c_subscriber_service_type_str[] = {
"unknown",
"voice",
"fax",
};
// esp_hf_client_in_band_ring_state_t
const char *c_inband_ring_state_str[] = {
"NOT provided",
"Provided",
};
extern esp_bd_addr_t peer_addr;
// If you want to connect a specific device, add it's address here
// esp_bd_addr_t peer_addr = {0xac, 0x67, 0xb2, 0x53, 0x77, 0xbe};
#if CONFIG_BT_HFP_AUDIO_DATA_PATH_HCI
#define ESP_HFP_RINGBUF_SIZE 3600
static RingbufHandle_t m_rb = NULL;
static void bt_app_hf_client_audio_open(void)
{
m_rb = xRingbufferCreate(ESP_HFP_RINGBUF_SIZE, RINGBUF_TYPE_BYTEBUF);
}
static void bt_app_hf_client_audio_close(void)
{
if (!m_rb) {
return ;
}
vRingbufferDelete(m_rb);
}
static uint32_t bt_app_hf_client_outgoing_cb(uint8_t *p_buf, uint32_t sz)
{
if (!m_rb) {
return 0;
}
size_t item_size = 0;
uint8_t *data = xRingbufferReceiveUpTo(m_rb, &item_size, 0, sz);
if (item_size == sz) {
memcpy(p_buf, data, item_size);
vRingbufferReturnItem(m_rb, data);
return sz;
} else if (0 < item_size) {
vRingbufferReturnItem(m_rb, data);
return 0;
} else {
// data not enough, do not read
return 0;
}
}
static void bt_app_hf_client_incoming_cb(const uint8_t *buf, uint32_t sz)
{
if (! m_rb) {
return;
}
BaseType_t done = xRingbufferSend(m_rb, (uint8_t *)buf, sz, 0);
if (! done) {
ESP_LOGE(BT_HF_TAG, "rb send fail");
}
esp_hf_client_outgoing_data_ready();
}
#endif /* #if CONFIG_BT_HFP_AUDIO_DATA_PATH_HCI */
/* callback for HF_CLIENT */
void bt_app_hf_client_cb(esp_hf_client_cb_event_t event, esp_hf_client_cb_param_t *param)
{
if (event <= ESP_HF_CLIENT_PROF_STATE_EVT) {
ESP_LOGI(BT_HF_TAG, "APP HFP event: %s", c_hf_evt_str[event]);
} else {
ESP_LOGE(BT_HF_TAG, "APP HFP invalid event %d", event);
}
switch (event) {
case ESP_HF_CLIENT_CONNECTION_STATE_EVT:
{
ESP_LOGI(BT_HF_TAG, "--connection state %s, peer feats 0x%"PRIx32", chld_feats 0x%"PRIx32,
c_connection_state_str[param->conn_stat.state],
param->conn_stat.peer_feat,
param->conn_stat.chld_feat);
memcpy(peer_addr,param->conn_stat.remote_bda,ESP_BD_ADDR_LEN);
break;
}
case ESP_HF_CLIENT_AUDIO_STATE_EVT:
{
ESP_LOGI(BT_HF_TAG, "--audio state %s",
c_audio_state_str[param->audio_stat.state]);
#if CONFIG_BT_HFP_AUDIO_DATA_PATH_HCI
if (param->audio_stat.state == ESP_HF_CLIENT_AUDIO_STATE_CONNECTED ||
param->audio_stat.state == ESP_HF_CLIENT_AUDIO_STATE_CONNECTED_MSBC) {
esp_hf_client_register_data_callback(bt_app_hf_client_incoming_cb,
bt_app_hf_client_outgoing_cb);
bt_app_hf_client_audio_open();
} else if (param->audio_stat.state == ESP_HF_CLIENT_AUDIO_STATE_DISCONNECTED) {
bt_app_hf_client_audio_close();
}
#endif /* #if CONFIG_BT_HFP_AUDIO_DATA_PATH_HCI */
break;
}
case ESP_HF_CLIENT_BVRA_EVT:
{
ESP_LOGI(BT_HF_TAG, "--VR state %s",
c_vr_state_str[param->bvra.value]);
break;
}
case ESP_HF_CLIENT_CIND_SERVICE_AVAILABILITY_EVT:
{
ESP_LOGI(BT_HF_TAG, "--NETWORK STATE %s",
c_service_availability_status_str[param->service_availability.status]);
break;
}
case ESP_HF_CLIENT_CIND_ROAMING_STATUS_EVT:
{
ESP_LOGI(BT_HF_TAG, "--ROAMING: %s",
c_roaming_status_str[param->roaming.status]);
break;
}
case ESP_HF_CLIENT_CIND_SIGNAL_STRENGTH_EVT:
{
ESP_LOGI(BT_HF_TAG, "-- signal strength: %d",
param->signal_strength.value);
break;
}
case ESP_HF_CLIENT_CIND_BATTERY_LEVEL_EVT:
{
ESP_LOGI(BT_HF_TAG, "--battery level %d",
param->battery_level.value);
break;
}
case ESP_HF_CLIENT_COPS_CURRENT_OPERATOR_EVT:
{
ESP_LOGI(BT_HF_TAG, "--operator name: %s",
param->cops.name);
break;
}
case ESP_HF_CLIENT_CIND_CALL_EVT:
{
ESP_LOGI(BT_HF_TAG, "--Call indicator %s",
c_call_str[param->call.status]);
break;
}
case ESP_HF_CLIENT_CIND_CALL_SETUP_EVT:
{
ESP_LOGI(BT_HF_TAG, "--Call setup indicator %s",
c_call_setup_str[param->call_setup.status]);
break;
}
case ESP_HF_CLIENT_CIND_CALL_HELD_EVT:
{
ESP_LOGI(BT_HF_TAG, "--Call held indicator %s",
c_call_held_str[param->call_held.status]);
break;
}
case ESP_HF_CLIENT_BTRH_EVT:
{
ESP_LOGI(BT_HF_TAG, "--response and hold %s",
c_resp_and_hold_str[param->btrh.status]);
break;
}
case ESP_HF_CLIENT_CLIP_EVT:
{
ESP_LOGI(BT_HF_TAG, "--clip number %s",
(param->clip.number == NULL) ? "NULL" : (param->clip.number));
break;
}
case ESP_HF_CLIENT_CCWA_EVT:
{
ESP_LOGI(BT_HF_TAG, "--call_waiting %s",
(param->ccwa.number == NULL) ? "NULL" : (param->ccwa.number));
break;
}
case ESP_HF_CLIENT_CLCC_EVT:
{
ESP_LOGI(BT_HF_TAG, "--Current call: idx %d, dir %s, state %s, mpty %s, number %s",
param->clcc.idx,
c_call_dir_str[param->clcc.dir],
c_call_state_str[param->clcc.status],
c_call_mpty_type_str[param->clcc.mpty],
(param->clcc.number == NULL) ? "NULL" : (param->clcc.number));
break;
}
case ESP_HF_CLIENT_VOLUME_CONTROL_EVT:
{
ESP_LOGI(BT_HF_TAG, "--volume_target: %s, volume %d",
c_volume_control_target_str[param->volume_control.type],
param->volume_control.volume);
break;
}
case ESP_HF_CLIENT_AT_RESPONSE_EVT:
{
ESP_LOGI(BT_HF_TAG, "--AT response event, code %d, cme %d",
param->at_response.code, param->at_response.cme);
break;
}
case ESP_HF_CLIENT_CNUM_EVT:
{
ESP_LOGI(BT_HF_TAG, "--subscriber type %s, number %s",
c_subscriber_service_type_str[param->cnum.type],
(param->cnum.number == NULL) ? "NULL" : param->cnum.number);
break;
}
case ESP_HF_CLIENT_BSIR_EVT:
{
ESP_LOGI(BT_HF_TAG, "--inband ring state %s",
c_inband_ring_state_str[param->bsir.state]);
break;
}
case ESP_HF_CLIENT_BINP_EVT:
{
ESP_LOGI(BT_HF_TAG, "--last voice tag number: %s",
(param->binp.number == NULL) ? "NULL" : param->binp.number);
break;
}
case ESP_HF_CLIENT_PKT_STAT_NUMS_GET_EVT:
{
ESP_LOGE(BT_HF_TAG, "ESP_HF_CLIENT_PKT_STAT_NUMS_GET_EVT: %d", event);
break;
}
case ESP_HF_CLIENT_PROF_STATE_EVT:
{
if (ESP_HF_INIT_SUCCESS == param->prof_stat.state) {
ESP_LOGI(BT_HF_TAG, "HF PROF STATE: Init Complete");
} else if (ESP_HF_DEINIT_SUCCESS == param->prof_stat.state) {
ESP_LOGI(BT_HF_TAG, "HF PROF STATE: Deinit Complete");
} else {
ESP_LOGE(BT_HF_TAG, "HF PROF STATE error: %d", param->prof_stat.state);
}
break;
}
default:
ESP_LOGE(BT_HF_TAG, "HF_CLIENT EVT: %d", event);
break;
}
}
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