gpio.c

ch7013驱动

#include "config.h"
#include "GPIO.h"
/*
void GPIO_Input(enum PORT_ID Port, U16 Mask, const RP16 pData)
{
    REG32(Sel_Regs[Port]) |= Mask;
    REG32(Dir_Regs[Port]) |= Mask;
    *pData = REG32(Data_Regs[Port]) & Mask;
}

void GPIO_Output(enum PORT_ID Port, U16 Mask, U16 Data)
{
    U32 temp;

    REG32(Sel_Regs[Port]) |= Mask;
    REG32(Dir_Regs[Port]) &= ~Mask;
    temp = (REG32(Data_Regs[Port]) & (~Mask)) |(Data & Mask);
    REG32(Data_Regs[Port]) = temp;
}*/

void ExINT_Enable(U32 ExINTNo, U32 TriggerMode)
{
    U32 temp;
    
    REG32(Dir_Regs[ ExInt2Ports[ExINTNo].Port ]) |= 1 << ExInt2Ports[ExINTNo].Bit;
    REG32(Sel_Regs[ExInt2Ports[ExINTNo].Port] ) |= 1 << ExInt2Ports[ExINTNo].Bit;
    temp = REG32(INTRCTL_Regs[ExInt2Ports[ExINTNo].Port]);
    temp &= (~(0x03 << (2*ExInt2Ports[ExINTNo].Bit)));
    temp |= TriggerMode << (2*ExInt2Ports[ExINTNo].Bit);
    REG32(INTRCTL_Regs[ExInt2Ports[ExINTNo].Port]) = temp;
    REG32(INCTL_Regs[ExInt2Ports[ExINTNo].Port]) |= 1 << ExInt2Ports[ExINTNo].Bit;
}


void GPIO_INIT(GPIOPortBit *pbit,BOOL InOrOut)
{   U32 Mask=1<<pbit->Bit; 
    *(volatile unsigned int *)(Sel_Regs[pbit->Port]) |= Mask;
    if(InOrOut)
    { *(volatile unsigned int *)(Dir_Regs[pbit->Port]) |= Mask;
    }
    else
    { *(volatile unsigned int *)(Dir_Regs[pbit->Port]) &= ~Mask;
    }
}

void GPIO_Write(GPIOPortBit *pbit,int data)
{ U32 Mask=1<<pbit->Bit; 
  if(data)
  { *(volatile unsigned int *)(Data_Regs[pbit->Port]) |= Mask;
  }
  else
  { *(volatile unsigned int *)(Data_Regs[pbit->Port]) &= ~Mask;
  }
}

int GPIO_Read(GPIOPortBit *pbit)
{ U32 RegData=*(volatile unsigned int *)(Data_Regs[pbit->Port]);
  return (RegData>>pbit->Bit)&0x01;
}