/**
  ******************************************************************************
  * @file           : usbd_desc.c
  * @version        : v1.0_Cube
  * @brief          : This file implements the USB Device descriptors
  ******************************************************************************
  *
  * Copyright (c) 2017 STMicroelectronics International N.V. 
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without 
  * modification, are permitted, provided that the following conditions are met:
  *
  * 1. Redistribution of source code must retain the above copyright notice, 
  *    this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright notice,
  *    this list of conditions and the following disclaimer in the documentation
  *    and/or other materials provided with the distribution.
  * 3. Neither the name of STMicroelectronics nor the names of other 
  *    contributors to this software may be used to endorse or promote products 
  *    derived from this software without specific written permission.
  * 4. This software, including modifications and/or derivative works of this 
  *    software, must execute solely and exclusively on microcontroller or
  *    microprocessor devices manufactured by or for STMicroelectronics.
  * 5. Redistribution and use of this software other than as permitted under 
  *    this license is void and will automatically terminate your rights under 
  *    this license. 
  *
  * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS" 
  * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT 
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
  * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
  * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT 
  * SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 
  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
*/

/* Includes ------------------------------------------------------------------*/
#include "usbd_core.h"
#include "usbd_desc.h"
#include "usbd_conf.h"

/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
  * @{
  */

/** @defgroup USBD_DESC 
  * @brief USBD descriptors module
  * @{
  */

/** @defgroup USBD_DESC_Private_TypesDefinitions
  * @{
  */
/**
  * @}
  */

/** @defgroup USBD_DESC_Private_Defines
  * @{
  */
#define USBD_VID 1155
#define USBD_LANGID_STRING 1033
#define USBD_MANUFACTURER_STRING "STMicroelectronics"
#define USBD_PID_FS 57105
#define USBD_PRODUCT_STRING_FS "STM32 DownLoad Firmware Update"
#define USBD_SERIALNUMBER_STRING_FS "00000000001A"
#define USBD_CONFIGURATION_STRING_FS "DFU Config"
#define USBD_INTERFACE_STRING_FS "DFU Interface"

/* USER CODE BEGIN 0 */

/* USER CODE END 0*/
/**
  * @}
  */

/** @defgroup USBD_DESC_Private_Macros
  * @{
  */
/**
  * @}
  */

/** @defgroup USBD_DESC_Private_Variables
  * @{
  */
uint8_t *USBD_FS_DeviceDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
uint8_t *USBD_FS_LangIDStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
uint8_t *USBD_FS_ManufacturerStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
uint8_t *USBD_FS_ProductStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
uint8_t *USBD_FS_SerialStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
uint8_t *USBD_FS_ConfigStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
uint8_t *USBD_FS_InterfaceStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);

#ifdef USB_SUPPORT_USER_STRING_DESC
uint8_t *USBD_FS_USRStringDesc(USBD_SpeedTypeDef speed, uint8_t idx, uint16_t *length);
#endif /* USB_SUPPORT_USER_STRING_DESC */

USBD_DescriptorsTypeDef FS_Desc =
    {
        USBD_FS_DeviceDescriptor,
        USBD_FS_LangIDStrDescriptor,
        USBD_FS_ManufacturerStrDescriptor,
        USBD_FS_ProductStrDescriptor,
        USBD_FS_SerialStrDescriptor,
        USBD_FS_ConfigStrDescriptor,
        USBD_FS_InterfaceStrDescriptor,
};

#if defined(__ICCARM__) /*!< IAR Compiler */
#pragma data_alignment = 4
#endif
/* USB Standard Device Descriptor */
__ALIGN_BEGIN uint8_t USBD_FS_DeviceDesc[USB_LEN_DEV_DESC] __ALIGN_END =
    {
        0x12, /*bLength */
        USB_DESC_TYPE_DEVICE, /*bDescriptorType*/
        0x00, /* bcdUSB */
        0x02,
        0x00, /*bDeviceClass*/
        0x00, /*bDeviceSubClass*/
        0x00, /*bDeviceProtocol*/
        USB_MAX_EP0_SIZE, /*bMaxPacketSize*/
        LOBYTE(USBD_VID), /*idVendor*/
        HIBYTE(USBD_VID), /*idVendor*/
        LOBYTE(USBD_PID_FS), /*idVendor*/
        HIBYTE(USBD_PID_FS), /*idVendor*/
        0x00, /*bcdDevice rel. 2.00*/
        0x02,
        USBD_IDX_MFC_STR, /*Index of manufacturer  string*/
        USBD_IDX_PRODUCT_STR, /*Index of product string*/
        USBD_IDX_SERIAL_STR, /*Index of serial number string*/
        USBD_MAX_NUM_CONFIGURATION /*bNumConfigurations*/
};
/* USB_DeviceDescriptor */

#if defined(__ICCARM__) /*!< IAR Compiler */
#pragma data_alignment = 4
#endif

/* USB Standard Device Descriptor */
__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__) /*!< IAR Compiler */
#pragma data_alignment = 4
#endif
__ALIGN_BEGIN uint8_t USBD_StrDesc[USBD_MAX_STR_DESC_SIZ] __ALIGN_END;
/**
  * @}
  */

/** @defgroup USBD_DESC_Private_FunctionPrototypes
  * @{
  */
/**
  * @}
  */

/** @defgroup USBD_DESC_Private_Functions
  * @{
  */

/**
* @brief  USBD_FS_DeviceDescriptor 
*         return the device descriptor
* @param  speed : current device speed
* @param  length : pointer to data length variable
* @retval pointer to descriptor buffer
*/
uint8_t *USBD_FS_DeviceDescriptor(USBD_SpeedTypeDef speed, uint16_t *length) {
  *length = sizeof(USBD_FS_DeviceDesc);
  return USBD_FS_DeviceDesc;
}

/**
* @brief  USBD_FS_LangIDStrDescriptor 
*         return the LangID string descriptor
* @param  speed : current device speed
* @param  length : pointer to data length variable
* @retval pointer to descriptor buffer
*/
uint8_t *USBD_FS_LangIDStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length) {
  *length = sizeof(USBD_LangIDDesc);
  return USBD_LangIDDesc;
}

/**
* @brief  USBD_FS_ProductStrDescriptor 
*         return the product string descriptor
* @param  speed : current device speed
* @param  length : pointer to data length variable
* @retval pointer to descriptor buffer
*/
uint8_t *USBD_FS_ProductStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length) {
  if(speed == 0) {
    USBD_GetString(USBD_PRODUCT_STRING_FS, USBD_StrDesc, length);
  } else {
    USBD_GetString(USBD_PRODUCT_STRING_FS, USBD_StrDesc, length);
  }
  return USBD_StrDesc;
}

/**
* @brief  USBD_FS_ManufacturerStrDescriptor 
*         return the manufacturer string descriptor
* @param  speed : current device speed
* @param  length : pointer to data length variable
* @retval pointer to descriptor buffer
*/
uint8_t *USBD_FS_ManufacturerStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length) {
  USBD_GetString(USBD_MANUFACTURER_STRING, USBD_StrDesc, length);
  return USBD_StrDesc;
}

/**
* @brief  USBD_FS_SerialStrDescriptor 
*         return the serial number string descriptor
* @param  speed : current device speed
* @param  length : pointer to data length variable
* @retval pointer to descriptor buffer
*/
uint8_t *USBD_FS_SerialStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length) {
  if(speed == USBD_SPEED_HIGH) {
    USBD_GetString(USBD_SERIALNUMBER_STRING_FS, USBD_StrDesc, length);
  } else {
    USBD_GetString(USBD_SERIALNUMBER_STRING_FS, USBD_StrDesc, length);
  }
  return USBD_StrDesc;
}

/**
* @brief  USBD_FS_ConfigStrDescriptor 
*         return the configuration string descriptor
* @param  speed : current device speed
* @param  length : pointer to data length variable
* @retval pointer to descriptor buffer
*/
uint8_t *USBD_FS_ConfigStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length) {
  if(speed == USBD_SPEED_HIGH) {
    USBD_GetString(USBD_CONFIGURATION_STRING_FS, USBD_StrDesc, length);
  } else {
    USBD_GetString(USBD_CONFIGURATION_STRING_FS, USBD_StrDesc, length);
  }
  return USBD_StrDesc;
}

/**
* @brief  USBD_HS_InterfaceStrDescriptor 
*         return the interface string descriptor
* @param  speed : current device speed
* @param  length : pointer to data length variable
* @retval pointer to descriptor buffer
*/
uint8_t *USBD_FS_InterfaceStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length) {
  if(speed == 0) {
    USBD_GetString(USBD_INTERFACE_STRING_FS, USBD_StrDesc, length);
  } else {
    USBD_GetString(USBD_INTERFACE_STRING_FS, USBD_StrDesc, length);
  }
  return USBD_StrDesc;
}
/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/