100 lines
3.6 KiB
C
100 lines
3.6 KiB
C
// Copyright 2020 Espressif Systems (Shanghai) Co. 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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//
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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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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/ringbuf.h"
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#include "freertos/semphr.h"
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#include "freertos/timers.h"
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#include "tusb.h"
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#include "tinyusb_types.h"
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/* CDC classification
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********************************************************************* */
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typedef enum {
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TINYUSB_CDC_DATA = 0x00,
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} cdc_data_sublcass_type_t; // CDC120 specification
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/* Note:other classification is represented in the file components\tinyusb\tinyusb\src\class\cdc\cdc.h */
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/*********************************************************************** CDC classification*/
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/* Structs
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********************************************************************* */
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typedef struct {
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tinyusb_usbdev_t usb_dev; /*!< USB device to set up */
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tusb_class_code_t cdc_class; /*!< CDC device class : Communications or Data device */
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union {
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cdc_comm_sublcass_type_t comm_subclass; /*!< Communications device subclasses: AMC, ECM, etc. */
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cdc_data_sublcass_type_t data_subclass; /*!< Data device has only one subclass.*/
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} cdc_subclass; /*!< CDC device subclass according to Class Definitions for Communications Devices the CDC v.1.20 */
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} tinyusb_config_cdc_t; /*!< Main configuration structure of a CDC device */
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typedef struct {
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tinyusb_usbdev_t usb_dev; /*!< USB device used for the instance */
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tusb_class_code_t type;
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union {
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cdc_comm_sublcass_type_t comm_subclass; /*!< Communications device subclasses: AMC, ECM, etc. */
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cdc_data_sublcass_type_t data_subclass; /*!< Data device has only one subclass.*/
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} cdc_subclass; /*!< CDC device subclass according to Class Definitions for Communications Devices the CDC v.1.20 */
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void *subclass_obj; /*!< Dynamically allocated subclass specific object */
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} esp_tusb_cdc_t;
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/*********************************************************************** Structs*/
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/* Functions
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********************************************************************* */
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/**
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* @brief Initializing CDC basic object
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* @param itf - number of a CDC object
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* @param cfg - CDC configuration structure
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*
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* @return esp_err_t ESP_OK or ESP_FAIL
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*/
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esp_err_t tinyusb_cdc_init(int itf, const tinyusb_config_cdc_t *cfg);
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/**
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* @brief De-initializing CDC. Clean its objects
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* @param itf - number of a CDC object
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* @return esp_err_t ESP_OK, ESP_ERR_INVALID_ARG, ESP_ERR_INVALID_STATE
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*
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*/
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esp_err_t tinyusb_cdc_deinit(int itf);
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/**
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* @brief Checks if the CDC initialized and ready to interaction
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*
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* @return true or false
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*/
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bool tinyusb_cdc_initialized(int itf);
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/**
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* @brief Return interface of a CDC device
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*
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* @param itf_num
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* @return esp_tusb_cdc_t* pointer to the interface or (NULL) on error
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*/
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esp_tusb_cdc_t *tinyusb_cdc_get_intf(int itf_num);
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/*********************************************************************** Functions*/
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#ifdef __cplusplus
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}
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#endif
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