cdc.c File Reference

#include <stdint.h>
#include "esp_check.h"
#include "esp_err.h"
#include "esp_log.h"
#include "tusb.h"
#include "cdc.h"

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Macros
#define	CDC_INTF_NUM   CFG_TUD_CDC

Functions
esp_tusb_cdc_t *	tinyusb_cdc_get_intf (int itf_num)
	Return interface of a CDC device.
static esp_err_t	cdc_obj_check (int itf, bool expected_inited, tusb_class_code_t expected_type)
static esp_err_t	tusb_cdc_comm_init (int itf)
static esp_err_t	tusb_cdc_deinit_comm (int itf)
static esp_err_t	tusb_cdc_data_init (int itf)
static esp_err_t	tusb_cdc_deinit_data (int itf)
esp_err_t	tinyusb_cdc_init (int itf, const tinyusb_config_cdc_t *cfg)
	Initializing CDC basic object.
esp_err_t	tinyusb_cdc_deinit (int itf)
	De-initializing CDC. Clean its objects.

Variables
static esp_tusb_cdc_t *	cdc_obj [CFG_TUD_CDC] = {}
static const char *	TAG = "tusb_cdc"

Macro Definition Documentation

CDC_INTF_NUM

#define CDC_INTF_NUM   CFG_TUD_CDC

Definition at line 14 of file cdc.c.

Referenced by tinyusb_cdc_get_intf().

Function Documentation

cdc_obj_check()

esp_err_t cdc_obj_check ( int itf, bool expected_inited, tusb_class_code_t expected_type )

static

Definition at line 26 of file cdc.c.

{
    esp_tusb_cdc_t *this_itf = tinyusb_cdc_get_intf(itf);
 
    bool inited = (this_itf != NULL);
    ESP_RETURN_ON_FALSE(expected_inited == inited, ESP_ERR_INVALID_STATE, TAG, "Wrong state of the interface. Expected state: %s", expected_inited ? "initialized" : "not initialized");
    ESP_RETURN_ON_FALSE(!(inited && (expected_type != -1) && !(this_itf->type == expected_type)), ESP_ERR_INVALID_STATE, TAG, "Wrong type of the interface. Should be : 0x%x (tusb_class_code_t)", expected_type);
    return ESP_OK;
}

References ESP_OK, TAG, tinyusb_cdc_get_intf(), and esp_tusb_cdc_t::type.

Referenced by tinyusb_cdc_deinit(), tinyusb_cdc_init(), tusb_cdc_comm_init(), tusb_cdc_data_init(), tusb_cdc_deinit_comm(), and tusb_cdc_deinit_data().

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tinyusb_cdc_deinit()

esp_err_t tinyusb_cdc_deinit

(

int

itf

)

De-initializing CDC. Clean its objects.

Parameters

itf	- number of a CDC object

Returns

esp_err_t ESP_OK, ESP_ERR_INVALID_ARG, ESP_ERR_INVALID_STATE

Definition at line 96 of file cdc.c.

{
    ESP_RETURN_ON_ERROR(cdc_obj_check(itf, true, -1), TAG, "cdc_obj_check failed");
 
    ESP_LOGD(TAG, "Deinit CDC %d", itf);
    if (cdc_obj[itf]->type == TUSB_CLASS_CDC) {
        ESP_RETURN_ON_ERROR(tusb_cdc_deinit_comm(itf), TAG, "tusb_cdc_deinit_comm failed");
    } else if (cdc_obj[itf]->type == TUSB_CLASS_CDC_DATA) {
        ESP_RETURN_ON_ERROR(tusb_cdc_deinit_data(itf), TAG, "tusb_cdc_deinit_data failed");
    } else {
        return ESP_ERR_INVALID_ARG;
    }
    return ESP_OK;
}

References cdc_obj, cdc_obj_check(), ESP_LOGD, ESP_OK, ESP_RETURN_ON_ERROR, TAG, tusb_cdc_deinit_comm(), and tusb_cdc_deinit_data().

Referenced by tusb_cdc_acm_init().

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tinyusb_cdc_get_intf()

esp_tusb_cdc_t * tinyusb_cdc_get_intf

(

int

itf_num

)

Return interface of a CDC device.

Parameters

itf_num

Returns

esp_tusb_cdc_t* pointer to the interface or (NULL) on error

Definition at line 18 of file cdc.c.

{
    if (itf_num >= CDC_INTF_NUM || itf_num < 0) {
        return NULL;
    }
    return cdc_obj[itf_num];
}

References CDC_INTF_NUM, and cdc_obj.

Referenced by alloc_obj(), cdc_obj_check(), free_obj(), and get_acm().

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tinyusb_cdc_init()

esp_err_t tinyusb_cdc_init	(	int	itf,
		const tinyusb_config_cdc_t *	cfg )

Initializing CDC basic object.

Parameters

itf	- number of a CDC object
cfg	- CDC configuration structure

Returns

esp_err_t ESP_OK or ESP_FAIL

Definition at line 80 of file cdc.c.

{
    ESP_RETURN_ON_ERROR(cdc_obj_check(itf, false, -1), TAG, "cdc_obj_check failed");
 
    ESP_LOGD(TAG, "Init CDC %d", itf);
    if (cfg->cdc_class == TUSB_CLASS_CDC) {
        ESP_RETURN_ON_ERROR(tusb_cdc_comm_init(itf), TAG, "tusb_cdc_comm_init failed");
        cdc_obj[itf]->cdc_subclass.comm_subclass = cfg->cdc_subclass.comm_subclass;
    } else {
        ESP_RETURN_ON_ERROR(tusb_cdc_data_init(itf), TAG, "tusb_cdc_data_init failed");
        cdc_obj[itf]->cdc_subclass.data_subclass = cfg->cdc_subclass.data_subclass;
    }
    cdc_obj[itf]->usb_dev = cfg->usb_dev;
    return ESP_OK;
}

References tinyusb_config_cdc_t::cdc_class, cdc_obj, cdc_obj_check(), tinyusb_config_cdc_t::cdc_subclass, tinyusb_config_cdc_t::comm_subclass, tinyusb_config_cdc_t::data_subclass, ESP_LOGD, ESP_OK, ESP_RETURN_ON_ERROR, TAG, tusb_cdc_comm_init(), tusb_cdc_data_init(), and tinyusb_config_cdc_t::usb_dev.

Referenced by tusb_cdc_acm_init().

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tusb_cdc_comm_init()

esp_err_t tusb_cdc_comm_init ( int itf )

static

Definition at line 36 of file cdc.c.

{
    ESP_RETURN_ON_ERROR(cdc_obj_check(itf, false, -1), TAG, "cdc_obj_check failed");
    cdc_obj[itf] = calloc(1, sizeof(esp_tusb_cdc_t));
    if (cdc_obj[itf] != NULL) {
        cdc_obj[itf]->type = TUSB_CLASS_CDC;
        ESP_LOGD(TAG, "CDC Comm class initialized");
        return ESP_OK;
    } else {
        ESP_LOGE(TAG, "CDC Comm initialization error");
        return ESP_FAIL;
    }
}

References cdc_obj, cdc_obj_check(), ESP_LOGD, ESP_OK, ESP_RETURN_ON_ERROR, and TAG.

Referenced by tinyusb_cdc_init().

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tusb_cdc_data_init()

esp_err_t tusb_cdc_data_init ( int itf )

static

Definition at line 58 of file cdc.c.

{
    ESP_RETURN_ON_ERROR(cdc_obj_check(itf, false, TUSB_CLASS_CDC_DATA), TAG, "cdc_obj_check failed");
    cdc_obj[itf] = calloc(1, sizeof(esp_tusb_cdc_t));
    if (cdc_obj[itf] != NULL) {
        cdc_obj[itf]->type = TUSB_CLASS_CDC_DATA;
        ESP_LOGD(TAG, "CDC Data class initialized");
        return ESP_OK;
    } else {
        ESP_LOGE(TAG, "CDC Data initialization error");
        return ESP_FAIL;
    }
}

References cdc_obj, cdc_obj_check(), ESP_LOGD, ESP_OK, ESP_RETURN_ON_ERROR, and TAG.

Referenced by tinyusb_cdc_init().

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tusb_cdc_deinit_comm()

esp_err_t tusb_cdc_deinit_comm ( int itf )

static

Definition at line 50 of file cdc.c.

{
    ESP_RETURN_ON_ERROR(cdc_obj_check(itf, true, TUSB_CLASS_CDC), TAG, "cdc_obj_check failed");
    free(cdc_obj[itf]);
    cdc_obj[itf] = NULL;
    return ESP_OK;
}

References cdc_obj, cdc_obj_check(), ESP_OK, ESP_RETURN_ON_ERROR, and TAG.

Referenced by tinyusb_cdc_deinit().

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tusb_cdc_deinit_data()

esp_err_t tusb_cdc_deinit_data ( int itf )

static

Definition at line 72 of file cdc.c.

{
    ESP_RETURN_ON_ERROR(cdc_obj_check(itf, true, TUSB_CLASS_CDC_DATA), TAG, "cdc_obj_check failed");
    free(cdc_obj[itf]);
    cdc_obj[itf] = NULL;
    return ESP_OK;
}

References cdc_obj, cdc_obj_check(), ESP_OK, ESP_RETURN_ON_ERROR, and TAG.

Referenced by tinyusb_cdc_deinit().

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Variable Documentation

cdc_obj

esp_tusb_cdc_t* cdc_obj[CFG_TUD_CDC] = {}

static

Definition at line 15 of file cdc.c.

{};

Referenced by tinyusb_cdc_deinit(), tinyusb_cdc_get_intf(), tinyusb_cdc_init(), tusb_cdc_comm_init(), tusb_cdc_data_init(), tusb_cdc_deinit_comm(), and tusb_cdc_deinit_data().

TAG

const char* TAG = "tusb_cdc"

static

Definition at line 16 of file cdc.c.