78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
/*
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* SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: CC0-1.0
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*/
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#include <stdint.h>
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#include "sdkconfig.h"
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#include "tinyusb.h"
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#include "tusb_cdc_acm.h"
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#include "esp_idf_version.h"
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static uint8_t buf[CONFIG_TINYUSB_CDC_RX_BUFSIZE + 1];
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void tinyusb_cdc_rx_callback(int itf, cdcacm_event_t *event)
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{
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size_t rx_size = 0;
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/* read and write back */
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ESP_ERROR_CHECK(tinyusb_cdcacm_read(itf, buf, CONFIG_TINYUSB_CDC_RX_BUFSIZE, &rx_size));
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tinyusb_cdcacm_write_queue(itf, buf, rx_size);
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tinyusb_cdcacm_write_flush(itf, 0);
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}
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#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0)
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static const tusb_desc_device_t cdc_device_descriptor = {
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.bLength = sizeof(cdc_device_descriptor),
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.bDescriptorType = TUSB_DESC_DEVICE,
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.bcdUSB = 0x0200,
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.bDeviceClass = TUSB_CLASS_MISC,
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.bDeviceSubClass = MISC_SUBCLASS_COMMON,
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.bDeviceProtocol = MISC_PROTOCOL_IAD,
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.bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE,
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.idVendor = USB_ESPRESSIF_VID,
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.idProduct = 0x4002,
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.bcdDevice = 0x0100,
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.iManufacturer = 0x01,
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.iProduct = 0x02,
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.iSerialNumber = 0x03,
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.bNumConfigurations = 0x01
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};
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const uint16_t cdc_desc_config_len = TUD_CONFIG_DESC_LEN + 2 * TUD_CDC_DESC_LEN;
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static const uint8_t cdc_desc_configuration[] = {
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TUD_CONFIG_DESCRIPTOR(1, 4, 0, cdc_desc_config_len, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
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TUD_CDC_DESCRIPTOR(0, 4, 0x81, 8, 0x02, 0x82, 64),
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TUD_CDC_DESCRIPTOR(2, 4, 0x83, 8, 0x04, 0x84, 64),
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};
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#endif
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void run_usb_dual_cdc_device(void)
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{
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const tinyusb_config_t tusb_cfg = {
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.external_phy = false,
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#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0)
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.device_descriptor = &cdc_device_descriptor,
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.configuration_descriptor = cdc_desc_configuration
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#endif
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};
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ESP_ERROR_CHECK(tinyusb_driver_install(&tusb_cfg));
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tinyusb_config_cdcacm_t amc_cfg = {
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.usb_dev = TINYUSB_USBDEV_0,
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.cdc_port = TINYUSB_CDC_ACM_0,
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.rx_unread_buf_sz = 64,
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.callback_rx = &tinyusb_cdc_rx_callback,
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.callback_rx_wanted_char = NULL,
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.callback_line_state_changed = NULL,
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.callback_line_coding_changed = NULL
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};
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ESP_ERROR_CHECK(tusb_cdc_acm_init(&amc_cfg));
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#if (CONFIG_TINYUSB_CDC_COUNT > 1)
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amc_cfg.cdc_port = TINYUSB_CDC_ACM_1;
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ESP_ERROR_CHECK(tusb_cdc_acm_init(&amc_cfg));
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#endif
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printf("USB initialization DONE\n");
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}
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