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/* ... */
#include "usbd_core.h"
#include "usbd_desc.h"
#include "usbd_conf.h"
Includes
#define USBD_VID 0x0483
#define USBD_PID 0x5730
#define USBD_LANGID_STRING 0x409
#define USBD_MANUFACTURER_STRING "STMicroelectronics"
#define USBD_PRODUCT_HS_STRING "STM32 AUDIO Streaming in HS Mode"
#define USBD_PRODUCT_FS_STRING "STM32 AUDIO Streaming in FS Mode"
#define USBD_CONFIGURATION_HS_STRING "AUDIO Config"
#define USBD_INTERFACE_HS_STRING "AUDIO Interface"
#define USBD_CONFIGURATION_FS_STRING "AUDIO Config"
#define USBD_INTERFACE_FS_STRING "AUDIO Interface"
10 defines
Private define
uint8_t *USBD_AUDIO_DeviceDescriptor(USBD_SpeedTypeDef speed,
uint16_t * length);
uint8_t *USBD_AUDIO_LangIDStrDescriptor(USBD_SpeedTypeDef speed,
uint16_t * length);
uint8_t *USBD_AUDIO_ManufacturerStrDescriptor(USBD_SpeedTypeDef speed,
uint16_t * length);
uint8_t *USBD_AUDIO_ProductStrDescriptor(USBD_SpeedTypeDef speed,
uint16_t * length);
uint8_t *USBD_AUDIO_SerialStrDescriptor(USBD_SpeedTypeDef speed,
uint16_t * length);
uint8_t *USBD_AUDIO_ConfigStrDescriptor(USBD_SpeedTypeDef speed,
uint16_t * length);
uint8_t *USBD_AUDIO_InterfaceStrDescriptor(USBD_SpeedTypeDef speed,
uint16_t * length);
Private function prototypes
USBD_DescriptorsTypeDef AUDIO_Desc = {
USBD_AUDIO_DeviceDescriptor,
USBD_AUDIO_LangIDStrDescriptor,
USBD_AUDIO_ManufacturerStrDescriptor,
USBD_AUDIO_ProductStrDescriptor,
USBD_AUDIO_SerialStrDescriptor,
USBD_AUDIO_ConfigStrDescriptor,
USBD_AUDIO_InterfaceStrDescriptor,
...};
#if defined ( __ICCARM__ )
#pragma data_alignment=4
#endif
__ALIGN_BEGIN uint8_t USBD_DeviceDesc[USB_LEN_DEV_DESC] __ALIGN_END = {
0x12,
USB_DESC_TYPE_DEVICE,
0x00,
0x02,
0x00,
0x00,
0x00,
USB_MAX_EP0_SIZE,
LOBYTE(USBD_VID),
HIBYTE(USBD_VID),
LOBYTE(USBD_PID),
HIBYTE(USBD_PID),
0x00,
0x02,
USBD_IDX_MFC_STR,
USBD_IDX_PRODUCT_STR,
USBD_IDX_SERIAL_STR,
USBD_MAX_NUM_CONFIGURATION
...};
#if defined ( __ICCARM__ )
#pragma data_alignment=4
#endif
__ALIGN_BEGIN uint8_t USBD_LangIDDesc[USB_LEN_LANGID_STR_DESC] __ALIGN_END = {
USB_LEN_LANGID_STR_DESC,
USB_DESC_TYPE_STRING,
LOBYTE(USBD_LANGID_STRING),
HIBYTE(USBD_LANGID_STRING),
...};
#if defined ( __ICCARM__ )
#pragma data_alignment=4
#endif
__ALIGN_BEGIN uint8_t USBD_StringSerial[USB_SIZ_STRING_SERIAL] __ALIGN_END = {
USB_SIZ_STRING_SERIAL,
USB_DESC_TYPE_STRING,
...};
#if defined ( __ICCARM__ )
#pragma data_alignment=4
#endif
__ALIGN_BEGIN uint8_t USBD_StrDesc[USBD_MAX_STR_DESC_SIZ] __ALIGN_END;
Private variables
static void IntToUnicode(uint32_t value, uint8_t * pbuf, uint8_t len);
static void Get_SerialNum(void);
/* ... */
uint8_t *USBD_AUDIO_DeviceDescriptor(USBD_SpeedTypeDef speed, uint16_t * length)
{
UNUSED(speed);
*length = sizeof(USBD_DeviceDesc);
return (uint8_t *) USBD_DeviceDesc;
}{ ... }
/* ... */
uint8_t *USBD_AUDIO_LangIDStrDescriptor(USBD_SpeedTypeDef speed,
uint16_t * length)
{
*length = sizeof(USBD_LangIDDesc);
return (uint8_t *) USBD_LangIDDesc;
}{ ... }
/* ... */
uint8_t *USBD_AUDIO_ProductStrDescriptor(USBD_SpeedTypeDef speed,
uint16_t * length)
{
if (speed == 0)
{
USBD_GetString((uint8_t *) USBD_PRODUCT_HS_STRING, USBD_StrDesc, length);
}if (speed == 0) { ... }
else
{
USBD_GetString((uint8_t *) USBD_PRODUCT_FS_STRING, USBD_StrDesc, length);
}else { ... }
return USBD_StrDesc;
}{ ... }
/* ... */
uint8_t *USBD_AUDIO_ManufacturerStrDescriptor(USBD_SpeedTypeDef speed,
uint16_t * length)
{
USBD_GetString((uint8_t *) USBD_MANUFACTURER_STRING, USBD_StrDesc, length);
return USBD_StrDesc;
}{ ... }
/* ... */
uint8_t *USBD_AUDIO_SerialStrDescriptor(USBD_SpeedTypeDef speed,
uint16_t * length)
{
*length = USB_SIZ_STRING_SERIAL;
/* ... */
Get_SerialNum();
return (uint8_t *) USBD_StringSerial;
}{ ... }
/* ... */
uint8_t *USBD_AUDIO_ConfigStrDescriptor(USBD_SpeedTypeDef speed,
uint16_t * length)
{
if (speed == USBD_SPEED_HIGH)
{
USBD_GetString((uint8_t *) USBD_CONFIGURATION_HS_STRING, USBD_StrDesc,
length);
}if (speed == USBD_SPEED_HIGH) { ... }
else
{
USBD_GetString((uint8_t *) USBD_CONFIGURATION_FS_STRING, USBD_StrDesc,
length);
}else { ... }
return USBD_StrDesc;
}{ ... }
/* ... */
uint8_t *USBD_AUDIO_InterfaceStrDescriptor(USBD_SpeedTypeDef speed,
uint16_t * length)
{
if (speed == 0)
{
USBD_GetString((uint8_t *) USBD_INTERFACE_HS_STRING, USBD_StrDesc, length);
}if (speed == 0) { ... }
else
{
USBD_GetString((uint8_t *) USBD_INTERFACE_FS_STRING, USBD_StrDesc, length);
}else { ... }
return USBD_StrDesc;
}{ ... }
/* ... */
static void Get_SerialNum(void)
{
uint32_t deviceserial0, deviceserial1, deviceserial2;
deviceserial0 = *(uint32_t *) DEVICE_ID1;
deviceserial1 = *(uint32_t *) DEVICE_ID2;
deviceserial2 = *(uint32_t *) DEVICE_ID3;
deviceserial0 += deviceserial2;
if (deviceserial0 != 0)
{
IntToUnicode(deviceserial0, &USBD_StringSerial[2], 8);
IntToUnicode(deviceserial1, &USBD_StringSerial[18], 4);
}if (deviceserial0 != 0) { ... }
}{ ... }
/* ... */
static void IntToUnicode(uint32_t value, uint8_t * pbuf, uint8_t len)
{
uint8_t idx = 0;
for (idx = 0; idx < len; idx++)
{
if (((value >> 28)) < 0xA)
{
pbuf[2 * idx] = (value >> 28) + '0';
}if (((value >> 28)) < 0xA) { ... }
else
{
pbuf[2 * idx] = (value >> 28) + 'A' - 10;
}else { ... }
value = value << 4;
pbuf[2 * idx + 1] = 0;
}for (idx = 0; idx < len; idx++) { ... }
}{ ... }