25281ef4de
- Adds HID Host support in Buedroid - Adds BLE HID Host and Device support - Adds some general HID utilities and definitions to help integrate with other stacks and native USB
294 lines
9.5 KiB
C
294 lines
9.5 KiB
C
// Copyright 2017-2019 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include "sdkconfig.h"
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#include "esp_err.h"
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#include "esp_log.h"
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#include "esp_event.h"
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#include "esp_hid_common.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief HIDH structure forward declaration
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*/
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struct esp_hidh_dev_s;
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typedef struct esp_hidh_dev_s esp_hidh_dev_t;
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ESP_EVENT_DECLARE_BASE(ESP_HIDH_EVENTS);
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/**
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* @brief HIDH callback events enum
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*/
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typedef enum {
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ESP_HIDH_ANY_EVENT = ESP_EVENT_ANY_ID, /*!< HID device any event */
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ESP_HIDH_OPEN_EVENT = 0, /*!< HID device opened */
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ESP_HIDH_BATTERY_EVENT, /*!< HID device battery level changed */
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ESP_HIDH_INPUT_EVENT, /*!< Received HID device INPUT report */
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ESP_HIDH_FEATURE_EVENT, /*!< Received HID device FEATURE report */
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ESP_HIDH_CLOSE_EVENT, /*!< HID device closed */
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ESP_HIDH_MAX_EVENT, /*!< HID events end marker */
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} esp_hidh_event_t;
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/**
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* @brief HIDH callback parameters union
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*/
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typedef union {
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/**
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* @brief ESP_HIDH_OPEN_EVENT
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*/
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struct {
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esp_hidh_dev_t *dev; /*!< HID Remote bluetooth device */
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} open; /*!< HID callback param of ESP_HIDH_OPEN_EVENT */
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/**
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* @brief ESP_HIDH_CLOSE_EVENT
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*/
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struct {
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esp_hidh_dev_t *dev; /*!< HID Remote bluetooth device. */
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int reason; /*!< Reason why the connection was closed. BLE Only */
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} close; /*!< HID callback param of ESP_HIDH_CLOSE_EVENT */
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/**
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* @brief ESP_HIDH_BATTERY_EVENT
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*/
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struct {
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esp_hidh_dev_t *dev; /*!< HID Remote bluetooth device */
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uint8_t level; /*!< Battery Level (0-100%) */
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} battery; /*!< HID callback param of ESP_HIDH_BATTERY_EVENT */
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/**
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* @brief ESP_HIDH_INPUT_EVENT
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*/
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struct {
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esp_hidh_dev_t *dev; /*!< HID Remote bluetooth device */
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esp_hid_usage_t usage; /*!< HID report usage */
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uint16_t report_id; /*!< HID report index */
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uint16_t length; /*!< HID data length */
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uint8_t *data; /*!< The pointer to the HID data */
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uint8_t map_index; /*!< HID report map index */
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} input; /*!< HID callback param of ESP_HIDH_INPUT_EVENT */
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/**
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* @brief ESP_HIDH_FEATURE_EVENT
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*/
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struct {
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esp_hidh_dev_t *dev; /*!< HID Remote bluetooth device */
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esp_hid_usage_t usage; /*!< HID report usage */
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uint16_t report_id; /*!< HID report index */
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uint16_t length; /*!< HID data length */
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uint8_t *data; /*!< The pointer to the HID data */
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uint8_t map_index; /*!< HID report map index */
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} feature; /*!< HID callback param of ESP_HIDH_FEATURE_EVENT */
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} esp_hidh_event_data_t;
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typedef struct {
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esp_event_handler_t callback;
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} esp_hidh_config_t;
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/**
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* @brief Initialize the HID Host component
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* @param config : pointer to esp_hidh_config_t structure
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*
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* @return: ESP_OK on success
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*/
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esp_err_t esp_hidh_init(const esp_hidh_config_t *config);
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/**
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* @brief De-initialize the HID Host component
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*
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* @return: ESP_OK on success
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*/
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esp_err_t esp_hidh_deinit(void);
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/**
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* @brief Close HID Device
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* @param dev : pointer to the device
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*
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* @return: ESP_OK on success
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*/
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esp_err_t esp_hidh_dev_close(esp_hidh_dev_t *dev);
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/**
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* @brief Free HID Device Memory
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* This function MUST be called when handling ESP_HIDH_CLOSE_EVENT
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* Only then all memory used for the device will be freed.
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* @param dev : pointer to the device
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*
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* @return: ESP_OK on success
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*/
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esp_err_t esp_hidh_dev_free(esp_hidh_dev_t *dev);
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/**
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* @brief Send an OUTPUT report to the device
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* @param dev : pointer to the device
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* @param map_index : index of the device report map
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* @param report_id : id of the HID OUTPUT report
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* @param data : pointer to the data to send
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* @param length : length of the data to send
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*
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* @return: ESP_OK on success
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*/
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esp_err_t esp_hidh_dev_output_set(esp_hidh_dev_t *dev, size_t map_index, size_t report_id, uint8_t *data, size_t length);
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/**
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* @brief Send a FEATURE report to the device
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* @param dev : pointer to the device
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* @param map_index : index of the device report map
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* @param report_id : id of the HID FEATURE report
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* @param data : pointer to the data to send
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* @param length : length of the data to send
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*
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* @return: ESP_OK on success
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*/
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esp_err_t esp_hidh_dev_feature_set(esp_hidh_dev_t *dev, size_t map_index, size_t report_id, uint8_t *data, size_t length);
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/**
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* @brief Get the value a FEATURE report from the device
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* @param dev : pointer to the device
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* @param map_index : index of the device report map
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* @param report_id : id of the HID FEATURE report
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* @param max_len : size of the buffer that will hold the data
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* @param data : pointer to the data buffer
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* @param length : pointer to the value that will be set to the number of bytes received
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*
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* @return: ESP_OK on success
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*/
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esp_err_t esp_hidh_dev_feature_get(esp_hidh_dev_t *dev, size_t map_index, size_t report_id, size_t max_len, uint8_t *data, size_t *length);
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/**
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* @brief Dump the properties of HID Device to UART
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* @param dev : pointer to the HID Device
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* @param fp : pointer to the output file
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*/
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void esp_hidh_dev_dump(esp_hidh_dev_t *dev, FILE *fp);
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/**
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* @brief Get the BT Device Address of a HID Device
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* @param dev : pointer to the HID Device
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*
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* @return: pointer to the BDA byte array or NULL
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*/
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const uint8_t *esp_hidh_dev_bda_get(esp_hidh_dev_t *dev);
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/**
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* @brief Get the HID Device Transport
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* @param dev : pointer to the HID Device
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*
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* @return: the transport of the connected device or ESP_HID_TRANSPORT_MAX
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*/
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esp_hid_transport_t esp_hidh_dev_transport_get(esp_hidh_dev_t *dev);
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/**
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* @brief Get the HID Device Cofiguration
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* @param dev : pointer to the HID Device
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*
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* @return: pointer to the config structure or NULL
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*/
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const esp_hid_device_config_t *esp_hidh_dev_config_get(esp_hidh_dev_t *dev);
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/**
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* @brief Get the name of a HID Device
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* @param dev : pointer to the HID Device
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*
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* @return: pointer to the character array or NULL
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*/
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const char *esp_hidh_dev_name_get(esp_hidh_dev_t *dev);
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/**
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* @brief Get the manufacturer of a HID Device
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* @param dev : pointer to the HID Device
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*
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* @return: pointer to the character array
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*/
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const char *esp_hidh_dev_manufacturer_get(esp_hidh_dev_t *dev);
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/**
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* @brief Get the serial number of a HID Device
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* @param dev : pointer to the HID Device
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*
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* @return: pointer to the character array or NULL
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*/
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const char *esp_hidh_dev_serial_get(esp_hidh_dev_t *dev);
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/**
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* @brief Get the VID of a HID Device
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* @param dev : pointer to the HID Device
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*
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* @return: the VID value
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*/
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uint16_t esp_hidh_dev_vendor_id_get(esp_hidh_dev_t *dev);
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/**
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* @brief Get the PID of a HID Device
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* @param dev : pointer to the HID Device
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*
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* @return: the PID value
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*/
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uint16_t esp_hidh_dev_product_id_get(esp_hidh_dev_t *dev);
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/**
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* @brief Get the version HID Device
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* @param dev : pointer to the HID Device
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*
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* @return: the version value
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*/
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uint16_t esp_hidh_dev_version_get(esp_hidh_dev_t *dev);
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/**
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* @brief Get the appearance of BLE HID Device
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* @param dev : pointer to the BLE HID Device
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*
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* @return: the appearance value
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*/
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uint16_t esp_hidh_dev_appearance_get(esp_hidh_dev_t *dev); //BLE Only
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/**
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* @brief Get the calculated HID Device usage type
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* @param dev : pointer to the HID Device
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*
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* @return: the hid usage type
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*/
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esp_hid_usage_t esp_hidh_dev_usage_get(esp_hidh_dev_t *dev);
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/**
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* @brief Get an array of all reports found on a device
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* @param dev : pointer to the device
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* @param num_reports : pointer to the value that will be set to the number of reports
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* @param reports : location to set to the pointer of the reports array
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*
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* @return: ESP_OK on success
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*/
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esp_err_t esp_hidh_dev_reports_get(esp_hidh_dev_t *dev, size_t *num_reports, esp_hid_report_item_t **reports);
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/**
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* @brief Get an array of the report maps found on a device
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* @param dev : pointer to the device
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* @param num_maps : pointer to the value that will be set to the number of report maps found
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* @param maps : location to set to the pointer of the report maps array
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*
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* @return: ESP_OK on success
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*/
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esp_err_t esp_hidh_dev_report_maps_get(esp_hidh_dev_t *dev, size_t *num_maps, esp_hid_raw_report_map_t **maps);
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#include "esp_hidh_transport.h"
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#ifdef __cplusplus
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}
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#endif
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