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A Low_Cost DAPLink Based On CH32X033F8P6
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DAPLink_X033/Code/DAP_X033/DAP/usb_desc.c

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#include "usb_desc.h"
#include "usbd_core.h"
#include "usbd_cdc.h"
#include "usbd_hid.h"
#include "dap_main.h"
#include "cdc_main.h"
#include "usart.h"
#define USB_IOEN 0x00000080
#define USB_PHY_V33 0x00000040
#define UDP_PUE_MASK 0x0000000C
#define UDP_PUE_DISABLE 0x00000000
#define UDP_PUE_35UA 0x00000004
#define UDP_PUE_10K 0x00000008
#define UDP_PUE_1K5 0x0000000C
#define UDM_PUE_MASK 0x00000003
#define UDM_PUE_DISABLE 0x00000000
#define UDM_PUE_35UA 0x00000001
#define UDM_PUE_10K 0x00000002
#define UDM_PUE_1K5 0x00000003
void usb_dc_low_level_init(void)
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_USBFS, ENABLE);
GPIO_InitTypeDef GPIO_InitStructure = {0};
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_16;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_17;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOC, &GPIO_InitStructure);
if (PWR_VDD_SupplyVoltage() == PWR_VDD_5V) // to be tested
AFIO->CTLR = (AFIO->CTLR & ~(UDP_PUE_MASK | UDM_PUE_MASK | USB_PHY_V33)) | UDP_PUE_10K | USB_IOEN;
else
AFIO->CTLR = (AFIO->CTLR & ~(UDP_PUE_MASK | UDM_PUE_MASK)) | USB_PHY_V33 | UDP_PUE_1K5 | USB_IOEN;
NVIC_InitTypeDef NVIC_InitStructure = {0};
NVIC_InitStructure.NVIC_IRQChannel = USBFS_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
static uint8_t DAP_Bulk_RX_Buf[DAP_BULK_SIZE] __attribute__((aligned(4)));
static uint8_t DAP_Bulk_TX_Buf[DAP_BULK_SIZE] __attribute__((aligned(4)));
static uint8_t DAP_HID_RX_Buf[DAP_HID_SIZE] __attribute__((aligned(4)));
static uint8_t DAP_HID_TX_Buf[DAP_HID_SIZE] __attribute__((aligned(4)));
static uint8_t CDC_RX_Buf[CDC_SIZE] __attribute__((aligned(4)));
static uint8_t CDC_TX_Buf[CDC_SIZE] __attribute__((aligned(4)));
static volatile uint8_t DAP_Bulk_IN_Busy = 0, DAP_HID_IN_Busy = 0, CDC_IN_Busy = 0;
#define DAP_BULK_INTERFACE_SIZE (9 + 7 + 7)
#define DAP_HID_INTERFACE_SIZE (9 + 9 + 7 + 7)
#define USB_CONFIG_SIZE (9 + DAP_BULK_INTERFACE_SIZE + DAP_HID_INTERFACE_SIZE + CDC_ACM_DESCRIPTOR_LEN)
#define HID_DESCRIPTOR_SIZE 36
static uint8_t dap_descriptor[] = {
USB_DEVICE_DESCRIPTOR_INIT(USB_2_1, 0x00, 0x00, 0x00, USBD_VID, USBD_PID, 0x0100, 0x01),
// bNumInterfaces: 1(dap hid)+1(dap bulk)+2(cdc)=4
USB_CONFIG_DESCRIPTOR_INIT(USB_CONFIG_SIZE, 4, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
// bInterfaceClass:0xFF,Vendor Specific
// bInterfaceSubClass:0x00
// bInterfaceProtocol:0x00
// iInterface:0x04,string4
USB_INTERFACE_DESCRIPTOR_INIT(0x00, 0x00, 0x02, 0xFF, 0x00, 0x00, 0x04),
USB_ENDPOINT_DESCRIPTOR_INIT(DAP_BULK_OUT_EP, USB_ENDPOINT_TYPE_BULK, DAP_BULK_SIZE, 0x00),
USB_ENDPOINT_DESCRIPTOR_INIT(DAP_BULK_IN_EP, USB_ENDPOINT_TYPE_BULK, DAP_BULK_SIZE, 0x00),
// bInterfaceClass:0x03,HID
// bInterfaceSubClass:0x00
// bInterfaceProtocol:0x00
// iInterface:0x05,string5
USB_INTERFACE_DESCRIPTOR_INIT(0x01, 0x00, 0x02, 0x03, 0x00, 0x00, 0x05),
/******************** Descriptor of Custom HID ********************/
0x09, /* bLength: HID Descriptor size */
HID_DESCRIPTOR_TYPE_HID, /* bDescriptorType: HID */
0x10, /* bcdHID: HID Class Spec release number */
0x01,
0x00, /* bCountryCode: Hardware target country */
0x01, /* bNumDescriptors: Number of HID class descriptors to follow */
0x22, /* bDescriptorType */
HID_DESCRIPTOR_SIZE, /* wItemLength: Total length of Report descriptor */
0x00,
USB_ENDPOINT_DESCRIPTOR_INIT(DAP_HID_OUT_EP, USB_ENDPOINT_TYPE_INTERRUPT, DAP_HID_SIZE, 0x01),
USB_ENDPOINT_DESCRIPTOR_INIT(DAP_HID_IN_EP, USB_ENDPOINT_TYPE_INTERRUPT, DAP_HID_SIZE, 0x01),
// str_idx:0x06,string6
CDC_ACM_DESCRIPTOR_INIT(0x02, CDC_INT_EP, CDC_OUT_EP, CDC_IN_EP, CDC_SIZE, 0x06),
/* String 0 (LANGID) */
USB_LANGID_INIT(USBD_LANGID_STRING),
/* String 1 (Manufacturer) */
12, /* bLength */
USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
'H', 0x00, /* wcChar0 */
'o', 0x00, /* wcChar1 */
'r', 0x00, /* wcChar2 */
'c', 0x00, /* wcChar3 */
'o', 0x00, /* wcChar4 */
/* String 2 (Product) */
32, /* bLength */
USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
'H', 0x00, /* wcChar0 */
'o', 0x00, /* wcChar1 */
'r', 0x00, /* wcChar2 */
'c', 0x00, /* wcChar3 */
'o', 0x00, /* wcChar4 */
' ', 0x00, /* wcChar5 */
'C', 0x00, /* wcChar6 */
'M', 0x00, /* wcChar7 */
'S', 0x00, /* wcChar8 */
'I', 0x00, /* wcChar9 */
'S', 0x00, /* wcChar10 */
'-', 0x00, /* wcChar11 */
'D', 0x00, /* wcChar12 */
'A', 0x00, /* wcChar13 */
'P', 0x00, /* wcChar14 */
/* String 3 (Serial Number) */
0x1A, /* bLength */
USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
'1', 0x00, /* wcChar0 */
'3', 0x00, /* wcChar1 */
'1', 0x00, /* wcChar2 */
'4', 0x00, /* wcChar3 */
'0', 0x00, /* wcChar4 */
'5', 0x00, /* wcChar5 */
'2', 0x00, /* wcChar6 */
'1', 0x00, /* wcChar7 */
'3', 0x00, /* wcChar8 */
'3', 0x00, /* wcChar9 */
'3', 0x00, /* wcChar10 */
'3', 0x00, /* wcChar11 */
/* String 4 (Interface) */
38, /* bLength */
USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
'H', 0x00, /* wcChar0 */
'o', 0x00, /* wcChar1 */
'r', 0x00, /* wcChar2 */
'c', 0x00, /* wcChar3 */
'o', 0x00, /* wcChar4 */
' ', 0x00, /* wcChar5 */
'C', 0x00, /* wcChar6 */
'M', 0x00, /* wcChar7 */
'S', 0x00, /* wcChar8 */
'I', 0x00, /* wcChar9 */
'S', 0x00, /* wcChar10 */
'-', 0x00, /* wcChar11 */
'D', 0x00, /* wcChar12 */
'A', 0x00, /* wcChar13 */
'P', 0x00, /* wcChar14 */
' ', 0x00, /* wcChar15 */
'v', 0x00, /* wcChar16 */
'2', 0x00, /* wcChar17 */
// /* String 5 (Interface) */
38, /* bLength */
USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
'H', 0x00, /* wcChar0 */
'o', 0x00, /* wcChar1 */
'r', 0x00, /* wcChar2 */
'c', 0x00, /* wcChar3 */
'o', 0x00, /* wcChar4 */
' ', 0x00, /* wcChar5 */
'C', 0x00, /* wcChar6 */
'M', 0x00, /* wcChar7 */
'S', 0x00, /* wcChar8 */
'I', 0x00, /* wcChar9 */
'S', 0x00, /* wcChar10 */
'-', 0x00, /* wcChar11 */
'D', 0x00, /* wcChar12 */
'A', 0x00, /* wcChar13 */
'P', 0x00, /* wcChar14 */
' ', 0x00, /* wcChar15 */
'v', 0x00, /* wcChar16 */
'1', 0x00, /* wcChar17 */
// /* String 6 (Interface) */
20, // bLength
USB_DESCRIPTOR_TYPE_STRING, // bDescriptorType
'H', 0x00, /* wcChar0 */
'o', 0x00, /* wcChar1 */
'r', 0x00, /* wcChar2 */
'c', 0x00, /* wcChar3 */
'o', 0x00, /* wcChar4 */
' ', 0x00, /* wcChar5 */
'C', 0, /* wcChar6 */
'D', 0, /* wcChar7 */
'C', 0, /* wcChar8 */
#ifdef CONFIG_USB_HS
///////////////////////////////////////
/// device qualifier descriptor
///////////////////////////////////////
0x0A,
USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER,
0x00,
0x02,
0xFF,
0xFF,
0xFF,
0x40,
0x01,
0x00,
#endif
0x00};
#define USBD_WINUSB_NUM 1
#define FUNCTION_SUBSET_LEN 160
#define DEVICE_INTERFACE_GUIDS_FEATURE_LEN 132
#define USBD_WINUSB_DESC_SET_LEN (WINUSB_DESCRIPTOR_SET_HEADER_SIZE + USBD_WINUSB_NUM * FUNCTION_SUBSET_LEN)
static const uint8_t dap_winusb_descriptor[] = {
WBVAL(WINUSB_DESCRIPTOR_SET_HEADER_SIZE), /* wLength */
WBVAL(WINUSB_SET_HEADER_DESCRIPTOR_TYPE), /* wDescriptorType */
0x00, 0x00, 0x03, 0x06, /* >= Win 8.1 */ /* dwWindowsVersion*/
WBVAL(USBD_WINUSB_DESC_SET_LEN), /* wDescriptorSetTotalLength */
WBVAL(WINUSB_FUNCTION_SUBSET_HEADER_SIZE), /* wLength */
WBVAL(WINUSB_SUBSET_HEADER_FUNCTION_TYPE), /* wDescriptorType */
0, /* bFirstInterface USBD_BULK_IF_NUM*/
0, /* bReserved */
WBVAL(FUNCTION_SUBSET_LEN), /* wSubsetLength */
WBVAL(WINUSB_FEATURE_COMPATIBLE_ID_SIZE), /* wLength */
WBVAL(WINUSB_FEATURE_COMPATIBLE_ID_TYPE), /* wDescriptorType */
'W', 'I', 'N', 'U', 'S', 'B', 0, 0, /* CompatibleId*/
0, 0, 0, 0, 0, 0, 0, 0, /* SubCompatibleId*/
WBVAL(DEVICE_INTERFACE_GUIDS_FEATURE_LEN), /* wLength */
WBVAL(WINUSB_FEATURE_REG_PROPERTY_TYPE), /* wDescriptorType */
WBVAL(WINUSB_PROP_DATA_TYPE_REG_MULTI_SZ), /* wPropertyDataType */
WBVAL(42), /* wPropertyNameLength */
'D', 0, 'e', 0, 'v', 0, 'i', 0, 'c', 0, 'e', 0,
'I', 0, 'n', 0, 't', 0, 'e', 0, 'r', 0, 'f', 0, 'a', 0, 'c', 0, 'e', 0,
'G', 0, 'U', 0, 'I', 0, 'D', 0, 's', 0, 0, 0,
WBVAL(80), /* wPropertyDataLength */
'{', 0,
'C', 0, 'D', 0, 'B', 0, '3', 0, 'B', 0, '5', 0, 'A', 0, 'D', 0, '-', 0,
'2', 0, '9', 0, '3', 0, 'B', 0, '-', 0,
'4', 0, '6', 0, '6', 0, '3', 0, '-', 0,
'A', 0, 'A', 0, '3', 0, '6', 0, '-',
0, '1', 0, 'A', 0, 'A', 0, 'E', 0, '4', 0, '6', 0, '4', 0, '6', 0, '3', 0, '7', 0, '7', 0, '6', 0,
'}', 0, 0, 0, 0, 0};
#define USBD_WINUSB_VENDOR_CODE 0x01 //
#define USBD_WINUSB_DESC_LEN 28
#define USBD_BOS_WTOTALLENGTH (0x05 + USBD_WINUSB_DESC_LEN * USBD_WINUSB_NUM)
static const uint8_t dap_bos_descriptor[] = {
0x05, /* bLength */
0x0f, /* bDescriptorType */
WBVAL(USBD_BOS_WTOTALLENGTH), /* wTotalLength */
USBD_WINUSB_NUM, /* bNumDeviceCaps */
USBD_WINUSB_DESC_LEN, /* bLength */
0x10, /* bDescriptorType */
USB_DEVICE_CAPABILITY_PLATFORM, /* bDevCapabilityType */
0x00, /* bReserved */
0xDF, 0x60, 0xDD, 0xD8, /* PlatformCapabilityUUID */
0x89, 0x45, 0xC7, 0x4C,
0x9C, 0xD2, 0x65, 0x9D,
0x9E, 0x64, 0x8A, 0x9F,
0x00, 0x00, 0x03, 0x06, /* >= Win 8.1 */ /* dwWindowsVersion*/
WBVAL(USBD_WINUSB_DESC_SET_LEN), /* wDescriptorSetTotalLength */
USBD_WINUSB_VENDOR_CODE, /* bVendorCode */
0, /* bAltEnumCode */
};
static struct usb_bos_descriptor bos_desc = {
.string = (uint8_t *)&dap_bos_descriptor[0],
.string_len = USBD_BOS_WTOTALLENGTH};
static struct usb_msosv2_descriptor msosv2_desc = {
.vendor_code = USBD_WINUSB_VENDOR_CODE,
.compat_id = (uint8_t *)&dap_winusb_descriptor[0],
.compat_id_len = USBD_WINUSB_DESC_SET_LEN,
};
static const uint8_t dap_hid_descriptor[] = {
0x06, 0x00, 0xff,
0x09, 0x01, 0xa1, 0x01, 0x15, 0x00, 0x26, 0xff, 0x00, 0x75, 0x08, 0x96, WBVAL(DAP_HID_SIZE),
0x09, 0x01, 0x81, 0x02, 0x96, WBVAL(DAP_HID_SIZE),
0x09, 0x01, 0x91, 0x02, 0x96, WBVAL(DAP_HID_SIZE),
0x09, 0x01, 0xb1, 0x02,
0xC0};
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:
/* setup first out ep read transfer */
usbd_ep_start_read(0, DAP_BULK_OUT_EP, DAP_Bulk_RX_Buf, DAP_BULK_SIZE);
usbd_ep_start_read(0, DAP_HID_OUT_EP, DAP_HID_RX_Buf, DAP_HID_SIZE);
usbd_ep_start_read(0, CDC_OUT_EP, CDC_RX_Buf, CDC_SIZE);
break;
case USBD_EVENT_SET_REMOTE_WAKEUP:
break;
case USBD_EVENT_CLR_REMOTE_WAKEUP:
break;
default:
break;
}
}
static void DAP_Bulk_IN_CallBack(uint8_t busid, uint8_t ep, uint32_t nbytes)
{
DAP_Bulk_IN_Busy = false;
if (DAP_USB_IsBulk)
DAP_TX_CallBack();
}
static void DAP_Bulk_OUT_CallBack(uint8_t busid, uint8_t ep, uint32_t nbytes)
{
DAP_USB_IsBulk = true;
DAP_RX_CallBack(DAP_Bulk_RX_Buf, nbytes);
usbd_ep_start_read(0, DAP_BULK_OUT_EP, DAP_Bulk_RX_Buf, DAP_BULK_SIZE);
}
void DAP_Bulk_IN(uint8_t *buf, uint32_t len)
{
if (DAP_Bulk_IN_Busy)
return;
DAP_Bulk_IN_Busy = true;
memcpy(DAP_Bulk_TX_Buf, buf, len);
usbd_ep_start_write(0, DAP_BULK_IN_EP, DAP_Bulk_TX_Buf, len);
}
uint8_t DAP_Bulk_IN_IsBusy(void)
{
return DAP_Bulk_IN_Busy;
}
static void DAP_HID_IN_CallBack(uint8_t busid, uint8_t ep, uint32_t nbytes)
{
DAP_HID_IN_Busy = false;
if (!DAP_USB_IsBulk)
DAP_TX_CallBack();
}
static void DAP_HID_OUT_CallBack(uint8_t busid, uint8_t ep, uint32_t nbytes)
{
DAP_USB_IsBulk = false;
DAP_RX_CallBack(DAP_HID_RX_Buf, nbytes);
usbd_ep_start_read(0, DAP_HID_OUT_EP, DAP_HID_RX_Buf, DAP_HID_SIZE);
}
void DAP_HID_IN(uint8_t *buf, uint32_t len)
{
if (DAP_HID_IN_Busy)
return;
DAP_HID_IN_Busy = true;
memcpy(DAP_HID_TX_Buf, buf, len);
usbd_ep_start_write(0, DAP_HID_IN_EP, DAP_HID_TX_Buf, DAP_HID_SIZE);
}
uint8_t DAP_HID_IN_IsBusy(void)
{
return DAP_HID_IN_Busy;
}
static void CDC_IN_CallBack(uint8_t busid, uint8_t ep, uint32_t nbytes)
{
CDC_IN_Busy = false;
CDC_TX_CallBack();
}
static void CDC_OUT_CallBack(uint8_t busid, uint8_t ep, uint32_t nbytes)
{
CDC_RX_CallBack(CDC_RX_Buf, nbytes);
}
void CDC_RX_Start(void)
{
usbd_ep_start_read(0, CDC_OUT_EP, CDC_RX_Buf, CDC_SIZE);
}
void CDC_IN(uint8_t *buf, uint32_t len)
{
if (CDC_IN_Busy)
return;
CDC_IN_Busy = true;
memcpy(CDC_TX_Buf, buf, len);
usbd_ep_start_write(0, CDC_IN_EP, CDC_TX_Buf, len);
}
uint8_t CDC_IN_IsBusy(void)
{
return CDC_IN_Busy;
}
static struct usbd_interface DAP_Bulk_Interface;
static struct usbd_endpoint DAP_Bulk_OUT_Endpoint = {
.ep_addr = DAP_BULK_OUT_EP,
.ep_cb = DAP_Bulk_OUT_CallBack,
};
static struct usbd_endpoint DAP_Bulk_IN_Endpoint = {
.ep_addr = DAP_BULK_IN_EP,
.ep_cb = DAP_Bulk_IN_CallBack,
};
static struct usbd_interface DAP_HID_Interface;
static struct usbd_endpoint DAP_HID_OUT_Endpoint = {
.ep_addr = DAP_HID_OUT_EP,
.ep_cb = DAP_HID_OUT_CallBack,
};
static struct usbd_endpoint DAP_HID_IN_Endpoint = {
.ep_addr = DAP_HID_IN_EP,
.ep_cb = DAP_HID_IN_CallBack,
};
static struct usbd_interface CDC_Interface1;
static struct usbd_interface CDC_Interface2;
static struct usbd_endpoint CDC_OUT_Endpoint = {
.ep_addr = CDC_OUT_EP,
.ep_cb = CDC_OUT_CallBack,
};
static struct usbd_endpoint CDC_IN_Endpoint = {
.ep_addr = CDC_IN_EP,
.ep_cb = CDC_IN_CallBack,
};
uint8_t line_coding_now[7];
void usbd_cdc_acm_set_line_coding(uint8_t busid, uint8_t intf, struct cdc_line_coding *line_coding)
{
memcpy(line_coding_now, (uint8_t *)line_coding, 7);
USART4_Config_Linecoding(line_coding_now);
}
void usbd_cdc_acm_get_line_coding(uint8_t busid, uint8_t intf, struct cdc_line_coding *line_coding)
{
memcpy(line_coding, line_coding_now, 7);
}
void usbd_cdc_acm_set_dtr(uint8_t busid, uint8_t intf, bool dtr)
{
}
void usbd_cdc_acm_set_rts(uint8_t busid, uint8_t intf, bool rts)
{
}
void usbd_cdc_acm_send_break(uint8_t busid, uint8_t intf)
{
}
#define ESIG_ADDR ((uint32_t)0x1FFFF7E8)
void DAP_USB_Init(void)
{
uint8_t unique_id[0x1A - 2];
uint8_t uid_buf[12];
memcpy(uid_buf, (uint8_t *)ESIG_ADDR, 12);
for (uint8_t i = 0; i < 12; i++)
{
unique_id[2 * i] = uid_buf[i] % 9 + '0';
unique_id[2 * i + 1] = 0;
}
memcpy(dap_descriptor + 198, unique_id, 0x1A - 2);
usbd_desc_register(0, dap_descriptor);
usbd_bos_desc_register(0, &bos_desc);
usbd_msosv2_desc_register(0, &msosv2_desc);
usbd_add_interface(0, &DAP_Bulk_Interface);
usbd_add_endpoint(0, &DAP_Bulk_OUT_Endpoint);
usbd_add_endpoint(0, &DAP_Bulk_IN_Endpoint);
usbd_add_interface(0, usbd_hid_init_intf(0, &DAP_HID_Interface, dap_hid_descriptor, HID_DESCRIPTOR_SIZE));
usbd_add_endpoint(0, &DAP_HID_OUT_Endpoint);
usbd_add_endpoint(0, &DAP_HID_IN_Endpoint);
usbd_add_interface(0, usbd_cdc_acm_init_intf(0, &CDC_Interface1));
usbd_add_interface(0, usbd_cdc_acm_init_intf(0, &CDC_Interface2));
usbd_add_endpoint(0, &CDC_OUT_Endpoint);
usbd_add_endpoint(0, &CDC_IN_Endpoint);
usbd_initialize(0, USBFS_BASE, &usbd_event_handler);
}