247 строки
8.0 KiB
C
247 строки
8.0 KiB
C
/**
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******************************************************************************
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* @file USB_Device/CDC_Standalone/Src/usbd_desc.c
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* @author MCD Application Team
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* @brief This file provides the USBD descriptors and string formatting method.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2018 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "usbd_core.h"
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#include "usbd_desc.h"
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#include "usbd_conf.h"
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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#define USBD_VID 0x2E8A // RPI
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#define USBD_PID 0x9fd2 // random
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//#define USBD_VID 0x0483
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//#define USBD_PID 0x5740
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#define USBD_LANGID_STRING 0x409
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#define USBD_MANUFACTURER_STRING "STMicroelectronics"
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#define USBD_PRODUCT_FS_STRING "Jacdac Serial"
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#define USBD_CONFIGURATION_FS_STRING "VCP Config"
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#define USBD_INTERFACE_FS_STRING "VCP Interface"
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/* Private macro -------------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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uint8_t *USBD_VCP_DeviceDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
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uint8_t *USBD_VCP_LangIDStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
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uint8_t *USBD_VCP_ManufacturerStrDescriptor (USBD_SpeedTypeDef speed, uint16_t *length);
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uint8_t *USBD_VCP_ProductStrDescriptor (USBD_SpeedTypeDef speed, uint16_t *length);
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uint8_t *USBD_VCP_SerialStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
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uint8_t *USBD_VCP_ConfigStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
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uint8_t *USBD_VCP_InterfaceStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
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/* Private variables ---------------------------------------------------------*/
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USBD_DescriptorsTypeDef VCP_Desc = {
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USBD_VCP_DeviceDescriptor,
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USBD_VCP_LangIDStrDescriptor,
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USBD_VCP_ManufacturerStrDescriptor,
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USBD_VCP_ProductStrDescriptor,
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USBD_VCP_SerialStrDescriptor,
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USBD_VCP_ConfigStrDescriptor,
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USBD_VCP_InterfaceStrDescriptor,
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};
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/* USB Standard Device Descriptor */
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const uint8_t USBD_DeviceDesc[USB_LEN_DEV_DESC]= {
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0x12, /* bLength */
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USB_DESC_TYPE_DEVICE, /* bDescriptorType */
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0x00, /* bcdUSB */
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0x02,
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0x02, /* bDeviceClass */
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0x02, /* bDeviceSubClass */
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0x00, /* bDeviceProtocol */
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USB_MAX_EP0_SIZE, /* bMaxPacketSize */
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LOBYTE(USBD_VID), /* idVendor */
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HIBYTE(USBD_VID), /* idVendor */
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LOBYTE(USBD_PID), /* idVendor */
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HIBYTE(USBD_PID), /* idVendor */
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0x00, /* bcdDevice rel. 2.00 */
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0x02,
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USBD_IDX_MFC_STR, /* Index of manufacturer string */
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USBD_IDX_PRODUCT_STR, /* Index of product string */
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USBD_IDX_SERIAL_STR, /* Index of serial number string */
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USBD_MAX_NUM_CONFIGURATION /* bNumConfigurations */
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}; /* USB_DeviceDescriptor */
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/* USB Standard Device Descriptor */
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#if defined ( __ICCARM__ ) /*!< IAR Compiler */
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#pragma data_alignment=4
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#endif
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__ALIGN_BEGIN uint8_t USBD_LangIDDesc[USB_LEN_LANGID_STR_DESC] __ALIGN_END = {
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USB_LEN_LANGID_STR_DESC,
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USB_DESC_TYPE_STRING,
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LOBYTE(USBD_LANGID_STRING),
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HIBYTE(USBD_LANGID_STRING),
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};
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#if defined ( __ICCARM__ ) /*!< IAR Compiler */
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#pragma data_alignment=4
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#endif
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__ALIGN_BEGIN uint8_t USBD_StringSerial[USB_SIZ_STRING_SERIAL] __ALIGN_END = {
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USB_SIZ_STRING_SERIAL,
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USB_DESC_TYPE_STRING,
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};
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#if defined ( __ICCARM__ ) /*!< IAR Compiler */
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#pragma data_alignment=4
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#endif
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__ALIGN_BEGIN uint8_t USBD_StrDesc[USBD_MAX_STR_DESC_SIZ] __ALIGN_END;
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/* Private functions ---------------------------------------------------------*/
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static void IntToUnicode (uint32_t value , uint8_t *pbuf , uint8_t len);
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static void Get_SerialNum(void);
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/**
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* @brief Returns the device descriptor.
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* @param speed: Current device speed
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* @param length: Pointer to data length variable
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* @retval Pointer to descriptor buffer
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*/
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uint8_t *USBD_VCP_DeviceDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
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{
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*length = sizeof(USBD_DeviceDesc);
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return (uint8_t*)USBD_DeviceDesc;
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}
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/**
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* @brief Returns the LangID string descriptor.
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* @param speed: Current device speed
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* @param length: Pointer to data length variable
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* @retval Pointer to descriptor buffer
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*/
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uint8_t *USBD_VCP_LangIDStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
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{
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*length = sizeof(USBD_LangIDDesc);
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return (uint8_t*)USBD_LangIDDesc;
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}
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/**
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* @brief Returns the product string descriptor.
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* @param speed: Current device speed
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* @param length: Pointer to data length variable
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* @retval Pointer to descriptor buffer
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*/
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uint8_t *USBD_VCP_ProductStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
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{
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USBD_GetString((uint8_t *)USBD_PRODUCT_FS_STRING, USBD_StrDesc, length);
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return USBD_StrDesc;
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}
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/**
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* @brief Returns the manufacturer string descriptor.
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* @param speed: Current device speed
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* @param length: Pointer to data length variable
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* @retval Pointer to descriptor buffer
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*/
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uint8_t *USBD_VCP_ManufacturerStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
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{
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USBD_GetString((uint8_t *)USBD_MANUFACTURER_STRING, USBD_StrDesc, length);
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return USBD_StrDesc;
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}
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/**
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* @brief Returns the serial number string descriptor.
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* @param speed: Current device speed
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* @param length: Pointer to data length variable
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* @retval Pointer to descriptor buffer
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*/
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uint8_t *USBD_VCP_SerialStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
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{
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*length = USB_SIZ_STRING_SERIAL;
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/* Update the serial number string descriptor with the data from the unique ID*/
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Get_SerialNum();
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return USBD_StringSerial;
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}
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/**
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* @brief Returns the configuration string descriptor.
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* @param speed: Current device speed
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* @param length: Pointer to data length variable
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* @retval Pointer to descriptor buffer
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*/
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uint8_t *USBD_VCP_ConfigStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
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{
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USBD_GetString((uint8_t *)USBD_CONFIGURATION_FS_STRING, USBD_StrDesc, length);
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return USBD_StrDesc;
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}
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/**
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* @brief Returns the interface string descriptor.
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* @param speed: Current device speed
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* @param length: Pointer to data length variable
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* @retval Pointer to descriptor buffer
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*/
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uint8_t *USBD_VCP_InterfaceStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
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{
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USBD_GetString((uint8_t *)USBD_INTERFACE_FS_STRING, USBD_StrDesc, length);
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return USBD_StrDesc;
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}
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/**
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* @brief Create the serial number string descriptor
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* @param None
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* @retval None
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*/
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static void Get_SerialNum(void)
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{
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uint32_t deviceserial0, deviceserial1, deviceserial2;
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deviceserial0 = *(uint32_t*)DEVICE_ID1;
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deviceserial1 = *(uint32_t*)DEVICE_ID2;
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deviceserial2 = *(uint32_t*)DEVICE_ID3;
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deviceserial0 += deviceserial2;
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if (deviceserial0 != 0)
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{
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IntToUnicode (deviceserial0, &USBD_StringSerial[2] ,8);
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IntToUnicode (deviceserial1, &USBD_StringSerial[18] ,4);
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}
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}
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/**
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* @brief Convert Hex 32Bits value into char
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* @param value: value to convert
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* @param pbuf: pointer to the buffer
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* @param len: buffer length
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* @retval None
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*/
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static void IntToUnicode (uint32_t value , uint8_t *pbuf , uint8_t len)
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{
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uint8_t idx = 0;
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for( idx = 0 ; idx < len ; idx ++)
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{
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if( ((value >> 28)) < 0xA )
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{
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pbuf[ 2* idx] = (value >> 28) + '0';
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}
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else
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{
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pbuf[2* idx] = (value >> 28) + 'A' - 10;
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}
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value = value << 4;
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pbuf[ 2* idx + 1] = 0;
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}
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}
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