stm32f7xx_hal_pcd_ex.c

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/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"

#ifdef HAL_PCD_MODULE_ENABLED

/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/

HAL_StatusTypeDef HAL_PCDEx_SetTxFiFo(PCD_HandleTypeDef *hpcd, uint8_t fifo, uint16_t size)
{
  uint8_t i = 0;
  uint32_t Tx_Offset = 0;

  /*  TXn min size = 16 words. (n  : Transmit FIFO index)
      When a TxFIFO is not used, the Configuration should be as follows: 
          case 1 :  n > m    and Txn is not used    (n,m  : Transmit FIFO indexes)
         --> Txm can use the space allocated for Txn.
         case2  :  n < m    and Txn is not used    (n,m  : Transmit FIFO indexes)
         --> Txn should be configured with the minimum space of 16 words
     The FIFO is used optimally when used TxFIFOs are allocated in the top 
         of the FIFO.Ex: use EP1 and EP2 as IN instead of EP1 and EP3 as IN ones.
     When DMA is used 3n * FIFO locations should be reserved for internal DMA registers */
  
  Tx_Offset = hpcd->Instance->GRXFSIZ;
  
  if(fifo == 0)
  {
    hpcd->Instance->DIEPTXF0_HNPTXFSIZ = (uint32_t)(((uint32_t)size << 16) | Tx_Offset);
  }
  else
  {
    Tx_Offset += (hpcd->Instance->DIEPTXF0_HNPTXFSIZ) >> 16;
    for (i = 0; i < (fifo - 1); i++)
    {
      Tx_Offset += (hpcd->Instance->DIEPTXF[i] >> 16);
    }
    
    /* Multiply Tx_Size by 2 to get higher performance */
    hpcd->Instance->DIEPTXF[fifo - 1] = (uint32_t)(((uint32_t)size << 16) | Tx_Offset);
  }
  
  return HAL_OK;
}

HAL_StatusTypeDef HAL_PCDEx_SetRxFiFo(PCD_HandleTypeDef *hpcd, uint16_t size)
{
  hpcd->Instance->GRXFSIZ = size;
  
  return HAL_OK;
}

HAL_StatusTypeDef HAL_PCDEx_ActivateLPM(PCD_HandleTypeDef *hpcd)
{
  USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;  
  
  hpcd->lpm_active = ENABLE;
  hpcd->LPM_State = LPM_L0;
  USBx->GINTMSK |= USB_OTG_GINTMSK_LPMINTM;
  USBx->GLPMCFG |= (USB_OTG_GLPMCFG_LPMEN | USB_OTG_GLPMCFG_LPMACK | USB_OTG_GLPMCFG_ENBESL);
  
  return HAL_OK;  
}

HAL_StatusTypeDef HAL_PCDEx_DeActivateLPM(PCD_HandleTypeDef *hpcd)
{
  USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;  
  
  hpcd->lpm_active = DISABLE;
  USBx->GINTMSK &= ~USB_OTG_GINTMSK_LPMINTM;
  USBx->GLPMCFG &= ~(USB_OTG_GLPMCFG_LPMEN | USB_OTG_GLPMCFG_LPMACK | USB_OTG_GLPMCFG_ENBESL);
  
  return HAL_OK;  
}

__weak void HAL_PCDEx_LPM_Callback(PCD_HandleTypeDef *hpcd, PCD_LPM_MsgTypeDef msg)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hpcd);
  UNUSED(msg);
  
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_PCDEx_LPM_Callback could be implemented in the user file
   */   
}

#endif /* HAL_PCD_MODULE_ENABLED */

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