text: /**************************************************************************//**
   * @file     gpio.c
   * @version  V3.00
   * @brief    M480 series GPIO driver source file
   *
   * @copyright (C) 2011~2016 Nuvoton Technology Corp. All rights reserved.
  *****************************************************************************/
  
  #include "NuMicro.h"
  
  /** @addtogroup Standard_Driver Standard Driver
    @{
  */
  
  /** @addtogroup GPIO_Driver GPIO Driver
    @{
  */
  
  /** @addtogroup GPIO_EXPORTED_FUNCTIONS GPIO Exported Functions
    @{
  */
  
  /**
   * @brief       Set GPIO operation mode
   *
   * @param[in]   port        GPIO port. It could be It could be PA, PB, PC, PD, PE, PF, PG or PH.
   * @param[in]   u32PinMask  The single or multiple pins of specified GPIO port.
   *                          It could be BIT0 ~ BIT15 for PA, PB, PC, PD, PF and PH GPIO port.
   *                          It could be BIT0 ~ BIT13 for PE GPIO port.
   *                          It could be BIT0 ~ BIT11 for PG GPIO port.
   * @param[in]   u32Mode     Operation mode.  It could be \n
   *                          GPIO_MODE_INPUT, GPIO_MODE_OUTPUT, GPIO_MODE_OPEN_DRAIN, GPIO_MODE_QUASI.
   *
   * @return      None
   *
   * @details     This function is used to set specified GPIO operation mode.
   */
  void GPIO_SetMode(GPIO_T *port, uint32_t u32PinMask, uint32_t u32Mode)
  {
      uint32_t i;
  
      for(i = 0ul; i < GPIO_PIN_MAX; i++)
      {
          if((u32PinMask & (1ul << i))==(1ul << i))
          {
              port->MODE = (port->MODE & ~(0x3ul << (i << 1))) | (u32Mode << (i << 1));
          }
      }
  }
  
  /**
   * @brief       Enable GPIO interrupt
   *
   * @param[in]   port        GPIO port. It could be It could be PA, PB, PC, PD, PE, PF, PG or PH.
   * @param[in]   u32Pin      The pin of specified GPIO port.
   *                          It could be 0 ~ 15 for PA, PB, PC, PD, PF and PH GPIO port.
   *                          It could be 0 ~ 13 for PE GPIO port.
   *                          It could be 0 ~ 11 for PG GPIO port.
   * @param[in]   u32IntAttribs   The interrupt attribute of specified GPIO pin. It could be \n
   *                              GPIO_INT_RISING, GPIO_INT_FALLING, GPIO_INT_BOTH_EDGE, GPIO_INT_HIGH, GPIO_INT_LOW.
   *
   * @return      None
   *
   * @details     This function is used to enable specified GPIO pin interrupt.
   */
  void GPIO_EnableInt(GPIO_T *port, uint32_t u32Pin, uint32_t u32IntAttribs)
  {
      port->INTTYPE = (port->INTTYPE&~(1ul<<u32Pin)) | (((u32IntAttribs >> 24) & 0xFFUL) << u32Pin);
      port->INTEN = (port->INTEN&~(0x00010001ul<<u32Pin)) | ((u32IntAttribs & 0xFFFFFFUL) << u32Pin);
  }
  
  
  /**
   * @brief       Disable GPIO interrupt
   *
   * @param[in]   port        GPIO port. It could be It could be PA, PB, PC, PD, PE, PF, PG or PH.
   * @param[in]   u32Pin      The pin of specified GPIO port.
   *                          It could be 0 ~ 15 for PA, PB, PC, PD, PF and PH GPIO port.
   *                          It could be 0 ~ 13 for PE GPIO port.
   *                          It could be 0 ~ 11 for PG GPIO port.
   *
   * @return      None
   *
   * @details     This function is used to disable specified GPIO pin interrupt.
   */
  void GPIO_DisableInt(GPIO_T *port, uint32_t u32Pin)
  {
      port->INTTYPE &= ~(1UL << u32Pin);
      port->INTEN &= ~((0x00010001UL) << u32Pin);
  }
  
  /**
   * @brief       Set GPIO slew rate control
   *
   * @param[in]   port        GPIO port. It could be \ref PA, \ref PB, ... or \ref GPH
   * @param[in]   u32PinMask  The single or multiple pins of specified GPIO port.
   * @param[in]   u32Mode     Slew rate mode. \ref GPIO_SLEWCTL_NORMAL (maximum 40 MHz at 2.7V)
   *                                          \ref GPIO_SLEWCTL_HIGH (maximum 80 MHz at 2.7V)
   *                                          \ref GPIO_SLEWCTL_FAST (maximum 100 MHz at 2.7V)
   *
   * @return      None
   *
   * @details     This function is used to set specified GPIO operation mode.
   */
  void GPIO_SetSlewCtl(GPIO_T *port, uint32_t u32PinMask, uint32_t u32Mode)
  {
      uint32_t i;
  
      for(i = 0ul; i < GPIO_PIN_MAX; i++)
      {
          if(u32PinMask & (1ul << i))
          {
              port->SLEWCTL = (port->SLEWCTL & ~(0x3ul << (i << 1))) | (u32Mode << (i << 1));
          }
      }
  }
  
  /**
   * @brief       Set GPIO Pull-up and Pull-down control
   *
   * @param[in]   port          GPIO port. It could be \ref PA, \ref PB, ... or \ref GPH
   * @param[in]   u32PinMask    The pin of specified GPIO port. It could be 0 ~ 15.
   * @param[in]   u32Mode       The pin mode of specified GPIO pin. It could be
   *                                \ref GPIO_PUSEL_DISABLE
   *                                \ref GPIO_PUSEL_PULL_UP
   *                                \ref GPIO_PUSEL_PULL_DOWN
   *
   * @return      None
   *
   * @details     Set the pin mode of specified GPIO pin.
   */
  void GPIO_SetPullCtl(GPIO_T *port, uint32_t u32PinMask, uint32_t u32Mode)
  {
      uint32_t i;
  
      for(i = 0ul; i < GPIO_PIN_MAX; i++)
      {
          if(u32PinMask & (1ul << i))
          {
              port->PUSEL = (port->PUSEL & ~(0x3ul << (i << 1))) | (u32Mode << (i << 1));
          }
      }
  }
  
  
  /*@}*/ /* end of group GPIO_EXPORTED_FUNCTIONS */
  
  /*@}*/ /* end of group GPIO_Driver */
  
  /*@}*/ /* end of group Standard_Driver */
  
  /*** (C) COPYRIGHT 2011~2016 Nuvoton Technology Corp. ***/
  