esp-idf/components/esp_hid/private/esp_hidh_private.h

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// Copyright 2017-2019 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_HIDH_PRIVATE_H_
#define _ESP_HIDH_PRIVATE_H_
#include "esp_hidh.h"
#if CONFIG_BLUEDROID_ENABLED
#include "esp_gap_bt_api.h"
#endif /* CONFIG_BLUEDROID_ENABLED */
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/semphr.h"
#include "esp_event.h"
#include "sys/queue.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief HIDH device report data
*/
typedef struct esp_hidh_dev_report_s {
struct esp_hidh_dev_report_s *next;
uint8_t map_index; //the index of the report map
uint8_t report_id; //the id of the report
uint8_t report_type; //input, output or feature
uint8_t protocol_mode; //boot or report
size_t value_len; //maximum len of value by report map
esp_hid_usage_t usage; //generic, keyboard or mouse
//BLE properties
uint16_t handle; //handle to the value
uint16_t ccc_handle; //handle to client config
uint8_t permissions; //report permissions
} esp_hidh_dev_report_t;
/**
* @brief HIDH device data
*/
struct esp_hidh_dev_s {
struct esp_hidh_dev_s *next;
esp_hid_device_config_t config;
esp_hid_usage_t usage;
esp_hid_transport_t transport; //BT, BLE or USB
bool connected; //we have all required data to communicate
bool opened; //we opened the device manually, else the device connected to us
int status; //status of the last command
size_t reports_len;
esp_hidh_dev_report_t *reports;
void *tmp;
size_t tmp_len;
xSemaphoreHandle semaphore;
esp_err_t (*close) (esp_hidh_dev_t *dev);
esp_err_t (*report_write) (esp_hidh_dev_t *dev, size_t map_index, size_t report_id, int report_type, uint8_t *data, size_t len);
esp_err_t (*report_read) (esp_hidh_dev_t *dev, size_t map_index, size_t report_id, int report_type, size_t max_length, uint8_t *value, size_t *value_len);
void (*dump) (esp_hidh_dev_t *dev, FILE *fp);
#if CONFIG_BLUEDROID_ENABLED
esp_bd_addr_t bda;
#endif /* CONFIG_BLUEDROID_ENABLED */
union {
#if CONFIG_BT_HID_HOST_ENABLED
struct {
esp_bt_cod_t cod;
int handle;
uint8_t sub_class;
uint8_t app_id;
uint16_t attr_mask;
} bt;
#endif /* CONFIG_BT_HID_HOST_ENABLED */
#if CONFIG_GATTC_ENABLE
struct {
esp_ble_addr_type_t address_type;
int conn_id;
uint16_t appearance;
uint16_t battery_handle;
uint16_t battery_ccc_handle;
} ble;
#endif /* CONFIG_GATTC_ENABLE */
};
TAILQ_ENTRY(esp_hidh_dev_s) devices;
};
typedef TAILQ_HEAD(esp_hidh_dev_head_s, esp_hidh_dev_s) esp_hidh_dev_head_t;
esp_hidh_dev_t *esp_hidh_dev_malloc(void);
#if CONFIG_BLUEDROID_ENABLED
esp_hidh_dev_t *esp_hidh_dev_get_by_bda(esp_bd_addr_t bda); //BT/BLE
esp_hidh_dev_t *esp_hidh_dev_get_by_handle(int handle); //BT Only
esp_hidh_dev_t *esp_hidh_dev_get_by_conn_id(uint16_t conn_id); //BLE Only
#endif /* CONFIG_BLUEDROID_ENABLED */
esp_hidh_dev_report_t *esp_hidh_dev_get_report_by_id_and_type(esp_hidh_dev_t *dev, size_t map_index, size_t report_id, int report_type);
esp_hidh_dev_report_t *esp_hidh_dev_get_input_report_by_id_and_proto(esp_hidh_dev_t *dev, size_t report_id, int protocol_mode);
esp_hidh_dev_report_t *esp_hidh_dev_get_report_by_handle(esp_hidh_dev_t *dev, uint16_t handle); //BLE Only
#ifdef __cplusplus
}
#endif
#endif /* _ESP_HIDH_PRIVATE_H_ */