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rt-thread-official/components/drivers/usb/cherryusb/demo/cdc_acm_multi_template.c

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/*
* Copyright (c) 2024, sakumisu
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "usbd_core.h"
#include "usbd_cdc.h"
/*!< endpoint address */
#define CDC_IN_EP 0x81
#define CDC_OUT_EP 0x01
#define CDC_INT_EP 0x85
#define CDC_IN_EP2 0x82
#define CDC_OUT_EP2 0x02
#define CDC_INT_EP2 0x86
#define CDC_IN_EP3 0x83
#define CDC_OUT_EP3 0x03
#define CDC_INT_EP3 0x87
#define CDC_IN_EP4 0x84
#define CDC_OUT_EP4 0x04
#define CDC_INT_EP4 0x88
#define USBD_VID 0xFFFF
#define USBD_PID 0xFFFF
#define USBD_MAX_POWER 100
#define USBD_LANGID_STRING 1033
/*!< config descriptor size */
#define USB_CONFIG_SIZE (9 + CDC_ACM_DESCRIPTOR_LEN * 4)
#ifdef CONFIG_USB_HS
#define CDC_MAX_MPS 512
#else
#define CDC_MAX_MPS 64
#endif
/*!< global descriptor */
static const uint8_t cdc_descriptor[] = {
USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0xEF, 0x02, 0x01, USBD_VID, USBD_PID, 0x0100, 0x01),
USB_CONFIG_DESCRIPTOR_INIT(USB_CONFIG_SIZE, 0x08, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
CDC_ACM_DESCRIPTOR_INIT(0x00, CDC_INT_EP, CDC_OUT_EP, CDC_IN_EP, CDC_MAX_MPS, 0x02),
CDC_ACM_DESCRIPTOR_INIT(0x02, CDC_INT_EP2, CDC_OUT_EP2, CDC_IN_EP2, CDC_MAX_MPS, 0x02),
CDC_ACM_DESCRIPTOR_INIT(0x04, CDC_INT_EP3, CDC_OUT_EP3, CDC_IN_EP3, CDC_MAX_MPS, 0x02),
CDC_ACM_DESCRIPTOR_INIT(0x06, CDC_INT_EP4, CDC_OUT_EP4, CDC_IN_EP4, CDC_MAX_MPS, 0x02),
///////////////////////////////////////
/// string0 descriptor
///////////////////////////////////////
USB_LANGID_INIT(USBD_LANGID_STRING),
///////////////////////////////////////
/// string1 descriptor
///////////////////////////////////////
0x14, /* bLength */
USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
'C', 0x00, /* wcChar0 */
'h', 0x00, /* wcChar1 */
'e', 0x00, /* wcChar2 */
'r', 0x00, /* wcChar3 */
'r', 0x00, /* wcChar4 */
'y', 0x00, /* wcChar5 */
'U', 0x00, /* wcChar6 */
'S', 0x00, /* wcChar7 */
'B', 0x00, /* wcChar8 */
///////////////////////////////////////
/// string2 descriptor
///////////////////////////////////////
0x26, /* bLength */
USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
'C', 0x00, /* wcChar0 */
'h', 0x00, /* wcChar1 */
'e', 0x00, /* wcChar2 */
'r', 0x00, /* wcChar3 */
'r', 0x00, /* wcChar4 */
'y', 0x00, /* wcChar5 */
'U', 0x00, /* wcChar6 */
'S', 0x00, /* wcChar7 */
'B', 0x00, /* wcChar8 */
' ', 0x00, /* wcChar9 */
'C', 0x00, /* wcChar10 */
'D', 0x00, /* wcChar11 */
'C', 0x00, /* wcChar12 */
' ', 0x00, /* wcChar13 */
'D', 0x00, /* wcChar14 */
'E', 0x00, /* wcChar15 */
'M', 0x00, /* wcChar16 */
'O', 0x00, /* wcChar17 */
///////////////////////////////////////
/// string3 descriptor
///////////////////////////////////////
0x16, /* bLength */
USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
'2', 0x00, /* wcChar0 */
'0', 0x00, /* wcChar1 */
'2', 0x00, /* wcChar2 */
'2', 0x00, /* wcChar3 */
'1', 0x00, /* wcChar4 */
'2', 0x00, /* wcChar5 */
'3', 0x00, /* wcChar6 */
'4', 0x00, /* wcChar7 */
'5', 0x00, /* wcChar8 */
'6', 0x00, /* wcChar9 */
#ifdef CONFIG_USB_HS
///////////////////////////////////////
/// device qualifier descriptor
///////////////////////////////////////
0x0a,
USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER,
0x00,
0x02,
0x02,
0x02,
0x01,
0x40,
0x01,
0x00,
#endif
0x00
};
USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t read_buffer[4][2048];
USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t write_buffer[4][2048];
volatile bool ep_tx_busy_flag = false;
static void usbd_event_handler(uint8_t busid, uint8_t event)
{
switch (event) {
case USBD_EVENT_RESET:
break;
case USBD_EVENT_CONNECTED:
break;
case USBD_EVENT_DISCONNECTED:
break;
case USBD_EVENT_RESUME:
break;
case USBD_EVENT_SUSPEND:
break;
case USBD_EVENT_CONFIGURED:
ep_tx_busy_flag = false;
/* setup first out ep read transfer */
usbd_ep_start_read(busid, CDC_OUT_EP, read_buffer, 2048);
usbd_ep_start_read(busid, CDC_OUT_EP2, read_buffer, 2048);
usbd_ep_start_read(busid, CDC_OUT_EP3, read_buffer, 2048);
usbd_ep_start_read(busid, CDC_OUT_EP4, read_buffer, 2048);
break;
case USBD_EVENT_SET_REMOTE_WAKEUP:
break;
case USBD_EVENT_CLR_REMOTE_WAKEUP:
break;
default:
break;
}
}
void usbd_cdc_acm_bulk_out(uint8_t busid, uint8_t ep, uint32_t nbytes)
{
USB_LOG_RAW("actual out len:%d\r\n", nbytes);
/* setup next out ep read transfer */
usbd_ep_start_read(busid, CDC_OUT_EP, read_buffer, 2048);
}
void usbd_cdc_acm_bulk_in(uint8_t busid, uint8_t ep, uint32_t nbytes)
{
USB_LOG_RAW("actual in len:%d\r\n", nbytes);
if ((nbytes % CDC_MAX_MPS) == 0 && nbytes) {
/* send zlp */
usbd_ep_start_write(CDC_IN_EP, NULL, 0);
} else {
ep_tx_busy_flag = false;
}
}
struct usbd_endpoint cdc_out_ep1 = {
.ep_addr = CDC_OUT_EP,
.ep_cb = usbd_cdc_acm_bulk_out
};
struct usbd_endpoint cdc_in_ep1 = {
.ep_addr = CDC_IN_EP,
.ep_cb = usbd_cdc_acm_bulk_in
};
struct usbd_endpoint cdc_out_ep2 = {
.ep_addr = CDC_OUT_EP2,
.ep_cb = usbd_cdc_acm_bulk_out
};
struct usbd_endpoint cdc_in_ep2 = {
.ep_addr = CDC_IN_EP2,
.ep_cb = usbd_cdc_acm_bulk_in
};
struct usbd_endpoint cdc_out_ep3 = {
.ep_addr = CDC_OUT_EP3,
.ep_cb = usbd_cdc_acm_bulk_out
};
struct usbd_endpoint cdc_in_ep3 = {
.ep_addr = CDC_IN_EP3,
.ep_cb = usbd_cdc_acm_bulk_in
};
struct usbd_endpoint cdc_out_ep4 = {
.ep_addr = CDC_OUT_EP4,
.ep_cb = usbd_cdc_acm_bulk_out
};
struct usbd_endpoint cdc_in_ep4 = {
.ep_addr = CDC_IN_EP4,
.ep_cb = usbd_cdc_acm_bulk_in
};
struct usbd_interface intf0;
struct usbd_interface intf1;
struct usbd_interface intf2;
struct usbd_interface intf3;
struct usbd_interface intf4;
struct usbd_interface intf5;
struct usbd_interface intf6;
struct usbd_interface intf7;
void cdc_acm_multi_init(uint8_t busid, uint32_t reg_base)
{
usbd_desc_register(busid, cdc_descriptor);
usbd_add_interface(busid, usbd_cdc_acm_init_intf(busid, &intf0));
usbd_add_interface(busid, usbd_cdc_acm_init_intf(busid, &intf1));
usbd_add_endpoint(busid, &cdc_out_ep1);
usbd_add_endpoint(busid, &cdc_in_ep1);
usbd_add_interface(busid, usbd_cdc_acm_init_intf(busid, &intf2));
usbd_add_interface(busid, usbd_cdc_acm_init_intf(busid, &intf3));
usbd_add_endpoint(busid, &cdc_out_ep2);
usbd_add_endpoint(busid, &cdc_in_ep2);
usbd_add_interface(busid, usbd_cdc_acm_init_intf(busid, &intf4));
usbd_add_interface(busid, usbd_cdc_acm_init_intf(busid, &intf5));
usbd_add_endpoint(busid, &cdc_out_ep3);
usbd_add_endpoint(busid, &cdc_in_ep3);
usbd_add_interface(busid, usbd_cdc_acm_init_intf(busid, &intf6));
usbd_add_interface(busid, usbd_cdc_acm_init_intf(busid, &intf7));
usbd_add_endpoint(busid, &cdc_out_ep4);
usbd_add_endpoint(busid, &cdc_in_ep4);
usbd_initialize(busid, reg_base, usbd_event_handler);
}
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