esp-idf/components/bt/bluedroid/api/include/esp_avrc_api.h

122 lines
4.0 KiB
C
Executable File

// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// 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.
#ifndef __ESP_AVRC_API_H__
#define __ESP_AVRC_API_H__
#include "esp_err.h"
#include "esp_bt_defs.h"
#include <stdint.h>
#include <stdbool.h>
/// AVRC feature bit mask
typedef enum {
ESP_AVRC_FEAT_RCTG = 0x0001, /*!< remote control target */
ESP_AVRC_FEAT_RCCT = 0x0002, /*!< remote control controller */
ESP_AVRC_FEAT_VENDOR = 0x0008, /*!< remote control vendor dependent commands */
ESP_AVRC_FEAT_BROWSE = 0x0010, /*!< use browsing channel */
ESP_AVRC_FEAT_META_DATA = 0x0040, /*!< remote control metadata transfer command/response */
ESP_AVRC_FEAT_ADV_CTRL = 0x0200, /*!< remote control advanced control commmand/response */
} esp_avrc_features_t;
/// AVRC passthrough command code
enum {
ESP_AVRC_PT_CMD_PLAY = 0x44, /*!< play */
ESP_AVRC_PT_CMD_STOP = 0x45, /*!< stop */
ESP_AVRC_PT_CMD_PAUSE = 0x46, /*!< pause */
ESP_AVRC_PT_CMD_FORWARD = 0x4B, /*!< forward */
ESP_AVRC_PT_CMD_BACKWARD = 0x4C /*!< backward */
};
/// AVRC passthrough command state
enum {
ESP_AVRC_PT_CMD_STATE_PRESSED = 0, /*!< key pressed */
ESP_AVRC_PT_CMD_STATE_RELEASED = 1 /*!< key released */
};
/// AVRC Controller callback events
typedef enum {
ESP_AVRC_CT_CONNECTION_STATE_EVT = 0, /*!< connection state changed event */
ESP_AVRC_CT_PASSTHROUGH_RSP_EVT = 1, /*!< passthrough response event */
ESP_AVRC_CT_MAX_EVT
} esp_avrc_ct_cb_event_t;
/// AVRC controller callback parameters
typedef union {
/*< ESP_AVRC_CT_CONNECTION_STATE_EVT */
struct avrc_ct_conn_stat_param {
bool connected;
uint32_t feat_mask;
esp_bd_addr_t remote_bda;
} conn_stat;
/*< ESP_AVRC_CT_PASSTHROUGH_RSP_EVT */
struct avrc_ct_psth_rsp_param {
uint8_t tl; /*!< transaction label, 0 to 15 */
uint8_t key_code;
uint8_t key_state; /*!< 0 for */
} psth_rsp;
} esp_avrc_ct_cb_param_t;
/**
* @brief AVRCP controler callback function type
* @param event : Event type
* @param param : Point to callback parameter, currently is union type
*/
typedef void (* esp_avrc_ct_cb_t)(esp_avrc_ct_cb_event_t event, esp_avrc_ct_cb_param_t *param);
/**
* @brief This function is called to register application callbacks
* to AVRCP module; callbacks will provide the upstream events
* (type esp_avrc_ct_cb_event_t) and paramters(type esp_avrc_ct_cb_param_t)
*
* @param[in] callback: A2DP sink event callback function
*
* @return
* - ESP_OK: success
* - ESP_FAIL: others
*
*/
esp_err_t esp_avrc_ct_register_callback(esp_avrc_ct_cb_t callback);
/**
*
* @brief This function is called to initialize the bluetooth AVRCP controller module
*
* @return
* - ESP_OK: success
* - ESP_FAIL: others
*
*/
esp_err_t esp_avrc_ct_init(void);
/**
*
* @brief This function is called to deinit AVRCP controller module
*
*/
esp_err_t esp_avrc_ct_deinit(void);
/**
* send pass through command to target
*/
esp_err_t esp_avrc_ct_send_passthrough_cmd(uint8_t tl, uint8_t key_code, uint8_t key_state);
#endif /* __ESP_AVRC_API_H__ */