211 lines
6.4 KiB
C
211 lines
6.4 KiB
C
/*
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* Copyright (c) 2024, sakumisu
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "usbd_core.h"
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#include "usbd_cdc_acm.h"
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/*!< endpoint address */
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#define CDC_IN_EP 0x81
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#define CDC_OUT_EP 0x02
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#define CDC_INT_EP 0x83
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#define USBD_VID 0xFFFF
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#define USBD_PID 0xFFFF
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#define USBD_MAX_POWER 100
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#define USBD_LANGID_STRING 1033
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/*!< config descriptor size */
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#define USB_CONFIG_SIZE (9 + CDC_ACM_DESCRIPTOR_LEN)
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#ifdef CONFIG_USB_HS
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#define CDC_MAX_MPS 512
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#else
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#define CDC_MAX_MPS 64
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#endif
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/*!< global descriptor */
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static const uint8_t cdc_descriptor[] = {
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USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0xEF, 0x02, 0x01, USBD_VID, USBD_PID, 0x0100, 0x01),
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USB_CONFIG_DESCRIPTOR_INIT(USB_CONFIG_SIZE, 0x02, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
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CDC_ACM_DESCRIPTOR_INIT(0x00, CDC_INT_EP, CDC_OUT_EP, CDC_IN_EP, CDC_MAX_MPS, 0x02),
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///////////////////////////////////////
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/// string0 descriptor
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///////////////////////////////////////
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USB_LANGID_INIT(USBD_LANGID_STRING),
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///////////////////////////////////////
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/// string1 descriptor
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///////////////////////////////////////
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0x14, /* bLength */
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USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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'C', 0x00, /* wcChar0 */
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'h', 0x00, /* wcChar1 */
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'e', 0x00, /* wcChar2 */
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'r', 0x00, /* wcChar3 */
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'r', 0x00, /* wcChar4 */
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'y', 0x00, /* wcChar5 */
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'U', 0x00, /* wcChar6 */
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'S', 0x00, /* wcChar7 */
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'B', 0x00, /* wcChar8 */
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///////////////////////////////////////
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/// string2 descriptor
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///////////////////////////////////////
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0x26, /* bLength */
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USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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'C', 0x00, /* wcChar0 */
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'h', 0x00, /* wcChar1 */
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'e', 0x00, /* wcChar2 */
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'r', 0x00, /* wcChar3 */
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'r', 0x00, /* wcChar4 */
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'y', 0x00, /* wcChar5 */
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'U', 0x00, /* wcChar6 */
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'S', 0x00, /* wcChar7 */
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'B', 0x00, /* wcChar8 */
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' ', 0x00, /* wcChar9 */
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'C', 0x00, /* wcChar10 */
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'D', 0x00, /* wcChar11 */
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'C', 0x00, /* wcChar12 */
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' ', 0x00, /* wcChar13 */
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'D', 0x00, /* wcChar14 */
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'E', 0x00, /* wcChar15 */
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'M', 0x00, /* wcChar16 */
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'O', 0x00, /* wcChar17 */
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///////////////////////////////////////
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/// string3 descriptor
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///////////////////////////////////////
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0x16, /* bLength */
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USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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'2', 0x00, /* wcChar0 */
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'0', 0x00, /* wcChar1 */
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'2', 0x00, /* wcChar2 */
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'2', 0x00, /* wcChar3 */
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'1', 0x00, /* wcChar4 */
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'2', 0x00, /* wcChar5 */
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'3', 0x00, /* wcChar6 */
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'4', 0x00, /* wcChar7 */
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'5', 0x00, /* wcChar8 */
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'6', 0x00, /* wcChar9 */
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#ifdef CONFIG_USB_HS
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///////////////////////////////////////
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/// device qualifier descriptor
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///////////////////////////////////////
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0x0a,
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USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER,
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0x00,
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0x02,
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0x02,
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0x02,
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0x01,
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0x40,
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0x00,
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0x00,
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#endif
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0x00
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};
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USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t read_buffer[2048]; /* 2048 is only for test speed , please use CDC_MAX_MPS for common*/
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USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t write_buffer[2048];
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volatile bool ep_tx_busy_flag = false;
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static void usbd_event_handler(uint8_t busid, uint8_t event)
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{
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switch (event) {
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case USBD_EVENT_RESET:
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break;
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case USBD_EVENT_CONNECTED:
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break;
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case USBD_EVENT_DISCONNECTED:
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break;
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case USBD_EVENT_RESUME:
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break;
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case USBD_EVENT_SUSPEND:
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break;
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case USBD_EVENT_CONFIGURED:
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ep_tx_busy_flag = false;
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/* setup first out ep read transfer */
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usbd_ep_start_read(busid, CDC_OUT_EP, read_buffer, 2048);
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break;
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case USBD_EVENT_SET_REMOTE_WAKEUP:
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break;
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case USBD_EVENT_CLR_REMOTE_WAKEUP:
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break;
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default:
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break;
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}
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}
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void usbd_cdc_acm_bulk_out(uint8_t busid, uint8_t ep, uint32_t nbytes)
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{
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USB_LOG_RAW("actual out len:%d\r\n", nbytes);
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// for (int i = 0; i < 100; i++) {
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// printf("%02x ", read_buffer[i]);
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// }
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// printf("\r\n");
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/* setup next out ep read transfer */
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usbd_ep_start_read(busid, CDC_OUT_EP, read_buffer, 2048);
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}
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void usbd_cdc_acm_bulk_in(uint8_t busid, uint8_t ep, uint32_t nbytes)
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{
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USB_LOG_RAW("actual in len:%d\r\n", nbytes);
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if ((nbytes % usbd_get_ep_mps(busid, ep)) == 0 && nbytes) {
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/* send zlp */
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usbd_ep_start_write(busid, CDC_IN_EP, NULL, 0);
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} else {
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ep_tx_busy_flag = false;
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}
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}
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/*!< endpoint call back */
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struct usbd_endpoint cdc_out_ep = {
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.ep_addr = CDC_OUT_EP,
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.ep_cb = usbd_cdc_acm_bulk_out
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};
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struct usbd_endpoint cdc_in_ep = {
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.ep_addr = CDC_IN_EP,
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.ep_cb = usbd_cdc_acm_bulk_in
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};
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static struct usbd_interface intf0;
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static struct usbd_interface intf1;
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void cdc_acm_init(uint8_t busid, uintptr_t reg_base)
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{
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const uint8_t data[10] = { 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30 };
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memcpy(&write_buffer[0], data, 10);
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memset(&write_buffer[10], 'a', 2038);
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usbd_desc_register(busid, cdc_descriptor);
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usbd_add_interface(busid, usbd_cdc_acm_init_intf(busid, &intf0));
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usbd_add_interface(busid, usbd_cdc_acm_init_intf(busid, &intf1));
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usbd_add_endpoint(busid, &cdc_out_ep);
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usbd_add_endpoint(busid, &cdc_in_ep);
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usbd_initialize(busid, reg_base, usbd_event_handler);
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}
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volatile uint8_t dtr_enable = 0;
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void usbd_cdc_acm_set_dtr(uint8_t busid, uint8_t intf, bool dtr)
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{
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if (dtr) {
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dtr_enable = 1;
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} else {
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dtr_enable = 0;
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}
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}
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void cdc_acm_data_send_with_dtr_test(uint8_t busid)
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{
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if (dtr_enable) {
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ep_tx_busy_flag = true;
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usbd_ep_start_write(busid, CDC_IN_EP, write_buffer, 2048);
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while (ep_tx_busy_flag) {
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}
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}
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} |