/**
  ******************************************************************************
  * @file           : usbd_conf.c
  * @brief          : This file implements the board support package for the USB device library
  ******************************************************************************
  *
  * COPYRIGHT(c) 2015 STMicroelectronics
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  * 1. Redistributions 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 its contributors
  * may be used to endorse or promote products derived from this software
  * without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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_def.h"
#include "usbd_core.h"

#include "os_io_seproxyhal.h"
//#include "usbd_hid.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/* Exported function prototypes -----------------------------------------------*/
extern USBD_StatusTypeDef USBD_LL_BatteryCharging(USBD_HandleTypeDef *pdev);
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
//void HAL_PCDEx_SetConnectionState(PCD_HandleTypeDef *hpcd, uint8_t state);

/*******************************************************************************
                       LL Driver Callbacks (PCD USB Device Library)
*******************************************************************************/

#if 0
/**
  * @brief  Setup Stage callback
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)
{

  USBD_LL_SetupStage(hpcd->pData, (uint8_t *)hpcd->Setup);
}

/**
  * @brief  Data Out Stage callback.
  * @param  hpcd: PCD handle
  * @param  epnum: Endpoint Number
  * @retval None
  */
void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
  USBD_LL_DataOutStage(hpcd->pData, epnum, hpcd->OUT_ep[epnum].xfer_buff);
}

/**
  * @brief  Data In Stage callback..
  * @param  hpcd: PCD handle
  * @param  epnum: Endpoint Number
  * @retval None
  */
void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
  USBD_LL_DataInStage(hpcd->pData, epnum, hpcd->IN_ep[epnum].xfer_buff);
}

/**
  * @brief  SOF callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd)
{
  USBD_LL_SOF(hpcd->pData);
}

/**
  * @brief  Reset callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd)
{ 
  USBD_SpeedTypeDef speed = USBD_SPEED_FULL;

  /*Set USB Current Speed*/
  switch (hpcd->Init.speed)
  {
  case PCD_SPEED_FULL:
    speed = USBD_SPEED_FULL;    
    break;
	
  default:
    speed = USBD_SPEED_FULL;    
    break;    
  }
  USBD_LL_SetSpeed(hpcd->pData, speed);  
  
  /*Reset Device*/
  USBD_LL_Reset(hpcd->pData);
}

/**
  * @brief  Suspend callback.
  * When Low power mode is enabled the debug cannot be used (IAR, Keil doesn't support it)
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)
{
  USBD_LL_Suspend(hpcd->pData);
}

/**
  * @brief  Resume callback.
  * When Low power mode is enabled the debug cannot be used (IAR, Keil doesn't support it)
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)
{
  USBD_LL_Resume(hpcd->pData); 
}

/**
  * @brief  ISOOUTIncomplete callback.
  * @param  hpcd: PCD handle
  * @param  epnum: Endpoint Number
  * @retval None
  */
void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
  USBD_LL_IsoOUTIncomplete(hpcd->pData, epnum);
}

/**
  * @brief  ISOINIncomplete callback.
  * @param  hpcd: PCD handle
  * @param  epnum: Endpoint Number
  * @retval None
  */
void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
  USBD_LL_IsoINIncomplete(hpcd->pData, epnum);
}

/**
  * @brief  ConnectCallback callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)
{
  USBD_LL_DevConnected(hpcd->pData);
}

/**
  * @brief  Disconnect callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)
{
  USBD_LL_DevDisconnected(hpcd->pData);
}
#endif


/*******************************************************************************
                       LL Driver Interface (USB Device Library --> PCD)
*******************************************************************************/
unsigned int ep_in_stall;
unsigned int ep_out_stall;
/**
  * @brief  Initializes the Low Level portion of the Device driver.
  * @param  pdev: Device handle
  * @retval USBD Status
  */
USBD_StatusTypeDef  USBD_LL_Init (USBD_HandleTypeDef *pdev)
{ 
  ep_in_stall = 0;
  ep_out_stall = 0;
  return USBD_OK;
}

/**
  * @brief  De-Initializes the Low Level portion of the Device driver.
  * @param  pdev: Device handle
  * @retval USBD Status
  */
USBD_StatusTypeDef  USBD_LL_DeInit (USBD_HandleTypeDef *pdev)
{
  return USBD_OK; 
}

/**
  * @brief  Starts the Low Level portion of the Device driver. 
  * @param  pdev: Device handle
  * @retval USBD Status
  */
USBD_StatusTypeDef  USBD_LL_Start(USBD_HandleTypeDef *pdev)
{
  uint8_t buffer[5];

  // reset address
  buffer[0] = SEPROXYHAL_TAG_USB_CONFIG;
  buffer[1] = 0;
  buffer[2] = 2;
  buffer[3] = SEPROXYHAL_TAG_USB_CONFIG_ADDR;
  buffer[4] = 0;
  io_seproxyhal_spi_send(buffer, 5);
  
  // start usb operation
  buffer[0] = SEPROXYHAL_TAG_USB_CONFIG;
  buffer[1] = 0;
  buffer[2] = 1;
  buffer[3] = SEPROXYHAL_TAG_USB_CONFIG_CONNECT;
  io_seproxyhal_spi_send(buffer, 4);
  return USBD_OK; 
}

/**
  * @brief  Stops the Low Level portion of the Device driver.
  * @param  pdev: Device handle
  * @retval USBD Status
  */
USBD_StatusTypeDef  USBD_LL_Stop (USBD_HandleTypeDef *pdev)
{
  uint8_t buffer[4];
  buffer[0] = SEPROXYHAL_TAG_USB_CONFIG;
  buffer[1] = 0;
  buffer[2] = 1;
  buffer[3] = SEPROXYHAL_TAG_USB_CONFIG_DISCONNECT;
  io_seproxyhal_spi_send(buffer, 4);
  return USBD_OK; 
}

/**
  * @brief  Opens an endpoint of the Low Level Driver.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @param  ep_type: Endpoint Type
  * @param  ep_mps: Endpoint Max Packet Size
  * @retval USBD Status
  */
USBD_StatusTypeDef  USBD_LL_OpenEP  (USBD_HandleTypeDef *pdev, 
                                      uint8_t  ep_addr,                                      
                                      uint8_t  ep_type,
                                      uint16_t ep_mps)
{
  uint8_t buffer[8];

  ep_in_stall = 0;
  ep_out_stall = 0;

  buffer[0] = SEPROXYHAL_TAG_USB_CONFIG;
  buffer[1] = 0;
  buffer[2] = 5;
  buffer[3] = SEPROXYHAL_TAG_USB_CONFIG_ENDPOINTS;
  buffer[4] = 1;
  buffer[5] = ep_addr;
  buffer[6] = 0;
  switch(ep_type) {
    case USBD_EP_TYPE_CTRL:
      buffer[6] = SEPROXYHAL_TAG_USB_CONFIG_TYPE_CONTROL;
      break;
    case USBD_EP_TYPE_ISOC:
      buffer[6] = SEPROXYHAL_TAG_USB_CONFIG_TYPE_ISOCHRONOUS;
      break;
    case USBD_EP_TYPE_BULK:
      buffer[6] = SEPROXYHAL_TAG_USB_CONFIG_TYPE_BULK;
      break;
    case USBD_EP_TYPE_INTR:
      buffer[6] = SEPROXYHAL_TAG_USB_CONFIG_TYPE_INTERRUPT;
      break;
  }
  buffer[7] = ep_mps;
  io_seproxyhal_spi_send(buffer, 8);
  return USBD_OK; 
}

/**
  * @brief  Closes an endpoint of the Low Level Driver.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @retval USBD Status
  */
USBD_StatusTypeDef  USBD_LL_CloseEP (USBD_HandleTypeDef *pdev, uint8_t ep_addr)   
{
  uint8_t buffer[8];
  buffer[0] = SEPROXYHAL_TAG_USB_CONFIG;
  buffer[1] = 0;
  buffer[2] = 5;
  buffer[3] = SEPROXYHAL_TAG_USB_CONFIG_ENDPOINTS;
  buffer[4] = 1;
  buffer[5] = ep_addr;
  buffer[6] = SEPROXYHAL_TAG_USB_CONFIG_TYPE_DISABLED;
  buffer[7] = 0;
  io_seproxyhal_spi_send(buffer, 8);
  return USBD_OK; 
}

/**
  * @brief  Flushes an endpoint of the Low Level Driver.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @retval USBD Status
  */
USBD_StatusTypeDef  USBD_LL_FlushEP (USBD_HandleTypeDef *pdev, uint8_t ep_addr)   
{
  //HAL_PCD_EP_Flush(pdev->pData, ep_addr);
  return USBD_OK; 
}

/**
  * @brief  Sets a Stall condition on an endpoint of the Low Level Driver.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @retval USBD Status
  */
USBD_StatusTypeDef  USBD_LL_StallEP (USBD_HandleTypeDef *pdev, uint8_t ep_addr)   
{ 
  uint8_t buffer[6];
  buffer[0] = SEPROXYHAL_TAG_USB_EP_PREPARE;
  buffer[1] = 0;
  buffer[2] = 3;
  buffer[3] = ep_addr;
  buffer[4] = SEPROXYHAL_TAG_USB_EP_PREPARE_DIR_STALL;
  buffer[5] = 0;
  io_seproxyhal_spi_send(buffer, 6);
  if (ep_addr & 0x80) {
    ep_in_stall |= (1<<(ep_addr&0x7F));
  }
  else {
    ep_out_stall |= (1<<(ep_addr&0x7F)); 
  }
  return USBD_OK; 
}

/**
  * @brief  Clears a Stall condition on an endpoint of the Low Level Driver.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @retval USBD Status
  */
USBD_StatusTypeDef  USBD_LL_ClearStallEP (USBD_HandleTypeDef *pdev, uint8_t ep_addr)   
{
  uint8_t buffer[6];
  buffer[0] = SEPROXYHAL_TAG_USB_EP_PREPARE;
  buffer[1] = 0;
  buffer[2] = 3;
  buffer[3] = ep_addr;
  buffer[4] = SEPROXYHAL_TAG_USB_EP_PREPARE_DIR_UNSTALL;
  buffer[5] = 0;
  io_seproxyhal_spi_send(buffer, 6);
  if (ep_addr & 0x80) {
    ep_in_stall &= ~(1<<(ep_addr&0x7F));
  }
  else {
    ep_out_stall &= ~(1<<(ep_addr&0x7F)); 
  }
  return USBD_OK; 
}

/**
  * @brief  Returns Stall condition.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @retval Stall (1: Yes, 0: No)
  */
uint8_t USBD_LL_IsStallEP (USBD_HandleTypeDef *pdev, uint8_t ep_addr)   
{
  if((ep_addr & 0x80) == 0x80)
  {
    return ep_in_stall & (1<<(ep_addr&0x7F));
  }
  else
  {
    return ep_out_stall & (1<<(ep_addr&0x7F));
  }
}
/**
  * @brief  Assigns a USB address to the device.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @retval USBD Status
  */
USBD_StatusTypeDef  USBD_LL_SetUSBAddress (USBD_HandleTypeDef *pdev, uint8_t dev_addr)   
{
  uint8_t buffer[5];
  buffer[0] = SEPROXYHAL_TAG_USB_CONFIG;
  buffer[1] = 0;
  buffer[2] = 2;
  buffer[3] = SEPROXYHAL_TAG_USB_CONFIG_ADDR;
  buffer[4] = dev_addr;
  io_seproxyhal_spi_send(buffer, 5);
  return USBD_OK; 
}

/**
  * @brief  Transmits data over an endpoint.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @param  pbuf: Pointer to data to be sent
  * @param  size: Data size    
  * @retval USBD Status
  */
USBD_StatusTypeDef  USBD_LL_Transmit (USBD_HandleTypeDef *pdev, 
                                      uint8_t  ep_addr,                                      
                                      uint8_t  *pbuf,
                                      uint16_t  size)
{
  uint8_t buffer[6];
  buffer[0] = SEPROXYHAL_TAG_USB_EP_PREPARE;
  buffer[1] = (3+size)>>8;
  buffer[2] = (3+size);
  buffer[3] = ep_addr;
  buffer[4] = SEPROXYHAL_TAG_USB_EP_PREPARE_DIR_IN;
  buffer[5] = size;
  io_seproxyhal_spi_send(buffer, 6);
  io_seproxyhal_spi_send(pbuf, size);
  return USBD_OK;   
}

/**
  * @brief  Prepares an endpoint for reception.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @param  pbuf: Pointer to data to be received
  * @param  size: Data size
  * @retval USBD Status
  */
USBD_StatusTypeDef  USBD_LL_PrepareReceive(USBD_HandleTypeDef *pdev, 
                                           uint8_t  ep_addr,
                                           uint16_t  size)
{
  uint8_t buffer[6];
  buffer[0] = SEPROXYHAL_TAG_USB_EP_PREPARE;
  buffer[1] = (3/*+size*/)>>8;
  buffer[2] = (3/*+size*/);
  buffer[3] = ep_addr;
  buffer[4] = SEPROXYHAL_TAG_USB_EP_PREPARE_DIR_OUT;
  buffer[5] = size;
  io_seproxyhal_spi_send(buffer, 6);
  return USBD_OK;   
}


#if 0
/**
  * @brief  GPIO EXTI Callback function
  *         Handle USB VBUS detection upon External interrupt
  * @param  GPIO_Pin
  * @retval None
  */
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
  if (GPIO_Pin == GPIO_PIN_9)
  {
    HAL_PCDEx_BCD_VBUSDetect (&hpcd_USB_OTG_FS);
  }
}

/**
  * @brief  Returns the last transfered packet size.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @retval Recived Data Size
  */
uint32_t USBD_LL_GetRxDataSize  (USBD_HandleTypeDef *pdev, uint8_t  ep_addr)  
{
  // unused
  return 0; //HAL_PCD_EP_GetRxCount(pdev->pData, ep_addr);
}

/**
  * @brief  Delays routine for the USB Device Library.
  * @param  Delay: Delay in ms
  * @retval None
  */
void  USBD_LL_Delay (uint32_t Delay)
{
  // TODO
}
#endif //0

#if 0
/**
* @brief Software Device Connection
* @param hpcd: PCD handle
* @param state: connection state (0 : disconnected / 1: connected) 
* @retval None
*/
void HAL_PCDEx_SetConnectionState(PCD_HandleTypeDef *hpcd, uint8_t state)
{
/* USER CODE BEGIN 6 */
  if (state == 1)
  {
    /* Configure Low Connection State */
    	
  }
  else
  {
    /* Configure High Connection State */
    
  } 
/* USER CODE END 6 */
}

/**
  * @brief  Verify if the Battery Charging Detection mode (BCD) is used :
  *         return USBD_OK if true
  *         else return USBD_FAIL if false
  * @param  pdev: Device handle
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_BatteryCharging(USBD_HandleTypeDef *pdev)
{
  return USBD_FAIL;
}
#endif // 0



#include "usbd_def.h"
#include "usbd_core.h"
#include "os_io_seproxyhal.h"
#include "usbd_desc.h"
#include "usbd_customhid.h"  
// the USB device
USBD_HandleTypeDef USBD_Device;

// endpoints transport length
volatile unsigned char G_io_usb_ep_xfer_len[IO_USB_MAX_ENDPOINTS];

// interaction variable with io seproxyhal to get the total length transferred when all RX packets have been processed.
extern volatile unsigned short G_io_apdu_length;
int8_t CUSTOM_HID_OutEvent  (uint8_t* hid_report)
{ 
  if (hid_report) {
    // add to the hid transport
    switch(io_usb_hid_receive(io_usb_send_apdu_data, hid_report, G_io_usb_ep_xfer_len[2])) {
      default:
        break;

      case IO_USB_APDU_RECEIVED:
        G_io_apdu_length = G_io_usb_hid_total_length;
        break;
    }
  }
  return (0);
}

void io_usb_enable(unsigned char enabled) {
  if (enabled) {
    os_memset(&USBD_Device, 0, sizeof(USBD_Device));
    /* Init Device Library */
    USBD_Init(&USBD_Device, &HID_Desc, 0);
    
    /* Register the HID class */
    USBD_RegisterClass(&USBD_Device, &USBD_CUSTOM_HID);

    USBD_CUSTOM_HID_RegisterInterface(&USBD_Device, &USBD_CustomHID_template_fops);
    
    /* Start Device Process */
    USBD_Start(&USBD_Device);
  }
  else {
    USBD_DeInit(&USBD_Device);
  }
}

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