/**
  ******************************************************************************
  * @file           : usbd_desc.c
  * @version        : v2.0_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_PID_FS                     22336
#define USBD_MANUFACTURER_STRING        "STMicroelectronics"
#define USBD_PRODUCT_STRING_FS          "STM32 Virtual ComPort"
#define USBD_SERIALNUMBER_STRING_FS     "00000000001A"
#define USBD_CONFIGURATION_STRING_FS    "CDC Config"
#define USBD_INTERFACE_STRING_FS        "CDC Interface"

#define USB_SIZ_BOS_DESC                0x0C

/**
  * @}
  */ 

/** @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 */  

#if (USBD_LPM_ENABLED == 1)
uint8_t *USBD_FS_USR_BOSDescriptor(USBD_SpeedTypeDef speed , uint16_t *length);
#endif

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 (USBD_LPM_ENABLED == 1)  
  USBD_FS_USR_BOSDescriptor,
#endif  
};

#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*/
#if (USBD_LPM_ENABLED == 1)
    0x01,                       /*bcdUSB */ /* changed to USB version 2.01 
                                               in order to support LPM L1 suspend
                                               resume test of USBCV3.0*/
#else  
    0x00,                       /* bcdUSB */
#endif
    0x02,
    0x02,                        /*bDeviceClass*/
    0x02,                       /*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 */
/* BOS descriptor */
#if (USBD_LPM_ENABLED == 1)
#if defined ( __ICCARM__ ) /*!< IAR Compiler */
  #pragma data_alignment=4   
#endif
__ALIGN_BEGIN  uint8_t USBD_FS_BOSDesc[USB_SIZ_BOS_DESC] __ALIGN_END =
{
  0x5,
  USB_DESC_TYPE_BOS,
  0xC,
  0x0,
  0x1,  /* 1 device capability */
        /* device capability*/
  0x7,
  USB_DEVICE_CAPABITY_TYPE,
  0x2,
  0x2, /*LPM capability bit set */
  0x0,
  0x0,
  0x0
};
#endif

#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;  
}
#if (USBD_LPM_ENABLED == 1)
/**
  * @brief  USBD_FS_USR_BOSDescriptor 
  *         return the BOS descriptor
  * @param  speed : current device speed
  * @param  length : pointer to data length variable
  * @retval pointer to descriptor buffer
  */
uint8_t *USBD_FS_USR_BOSDescriptor(USBD_SpeedTypeDef speed , uint16_t *length)
{
  *length = sizeof(USBD_FS_BOSDesc);
  return (uint8_t*)USBD_FS_BOSDesc;
}
#endif
/**
  * @}
  */ 

/**
  * @}
  */ 

/**
  * @}
  */ 

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