iop.c

linux下三星4510的BSP驱动程序！已经试验成功

/*************************************************************************/
/*                                                                       */
/* FILE NAME                                      VERSION                */
/*                                                                       */
/*      iop.c                      KS32C5000, KS32C50100   : version 1.0 */
/*                                                                       */
/* COMPONENT                                                             */
/*                                                                       */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*                                                                       */
/* AUTHOR                                                                */
/*                                                                       */
/*      Young Sun KIM, Samsung Electronics, Inc.                         */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*            I/O port input, output and share function test             */
/*                                                                       */
/* DEPENDENCIES                                                          */
/*                                                                       */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         NAME            DATE                    REMARKS               */
/*                                                                       */
/*        in4maker      12-18-1998      Created initial version 1.0      */
/*************************************************************************/
//nclude <stdio.h>

#include "../inc/iop.h"
#include "../inc/irq.h"
#include "../inc/s3c4510b.h"
#include "../inc/board.h"
#include "../inc/utils.h"
#include "../inc/def.h"
#include "../inc/config.h"
#include "../inc/lcd.h"
#define    MON_TIME_DELAY         1000000 


volatile unsigned int ExtIntFlag = 0;
volatile unsigned int ExtIntCnt = 0;
extern volatile unsigned int clk_tick; //defined at timer.c

/* I/O Function Test */
void ioptest(void)
{
       
    int key;
    unsigned char ch;
    rIOPMOD =0x00ff;
    rIOPDATA = ~0xd;        // In iop test mode
       // rIOPCON=0XA5294;
    rIOPCON=0X84210;
	//SysSetInterrupt(INT_EXTINT1, ext1isr);
	//Enable_Int(INT_EXTINT1); 
	//SysSetInterrupt(INT_EXTINT0, ext0isr);
	//SysSetInterrupt(INT_EXTINT2, ext2isr);
	//SysSetInterrupt(INT_EXTINT3, ext3isr);
        
//
     //   Enable_Int(INT_EXTINT2); 
      //  Enable_Int(INT_EXTINT3); 
        
     //   Enable_Int(INT_GLOBAL); //enable global interrupt mask
     puts(" \n SW3 : D4  AND D5  ON\n ");
     puts(" \n SW4 : D6  AND D7  ON\n ");
     puts(" \n SW5 : D8  AND D9  ON\n ");
     puts(" \n SW6 : D10 AND D11 ON\n ");
        /* -------------------------*/
        /* --- use for debugging ---*/
        /* -------------------------*/
	//rIOPMOD |= 0x1F;        // Use output port for LED display  
	           
      while((ch=getkey())!=ESC_KEY)
      {
        key=keyscan();
        switch(key)
           {
            case 1: 
            {
            
             LedSet(0x3);
            // l2Print("you enter is","    KINT1");
             break;
            }
            case 2: 
            {
              LedSet(0xc);
             
           // l2Print("you enter is","    KINT2");
            break;
            }
            case 3: 
            {
             LedSet(0x30);
            // l2Print("you enter is","    KINT3");
             break;
             }
            case 4:
            {
               LedSet(0xc0);
            // LedSet(0xc0);
           //  l2Print("you enter is","    KINT4");
             break;
             }
            default:break;
            }
       }

}
void ext0isr(void)
{
     Clear_PendingBit(INT_EXTINT0);
     //puts("\n> External interrupt 0 !!!\n");
      
     //CLKCON = 0x0;   //Recover the system clock to 33Mhz
     LedSet(0xc0);
     ExtIntCnt++;
     ExtIntFlag = 1;
     //ExtIntDisable(0);
     
}


void ext1isr(void)
{
     //Clear_PendingBit(nEXT1_INT);
     //puts("\n> External interrupt 1 !!!\n");
     //CLKCON = 0x0;   //Recover the system clock to 33Mhz
     l2Print("you enter is","    KINT1");
     LedSet(0x3);
     ExtIntCnt++;
     ExtIntFlag = 1;
     //ExtIntDisable(1);
}


void ext2isr(void)
{
     //Clear_PendingBit(nEXT2_INT);
    // puts("\n> External interrupt 2 !!!\n");
     //CLKCON = 0x0;   //Recover the system clock to 33Mhz
     LedSet(0XC);
     l2Print("you enter is","    KINT2");
     ExtIntCnt++;
     ExtIntFlag = 1;
     //ExtIntDisable(2);
}


void ext3isr(void)
{
     //Clear_PendingBit(nEXT3_INT);
     //puts("\n> External interrupt 3 !!!\n");
     //CLKCON = 0x0;   //Recover the system clock to 33Mhz
     LedSet(0X30);
     l2Print("you enter is","    KINT3");
     ExtIntCnt++;
     ExtIntFlag = 1;
     //ExtIntDisable(3);
}

int keyscan(void)
{
  int key_value=0;
  int time;
  if(~(inl(IOPDATA))&0x400)
   { for(time=0;time<KEY_TIME_OUT;time++);
     if(~(inl(IOPDATA))&0x400)
     key_value=4;
   }
   if(~(inl(IOPDATA))&0x800)
   { 
     for(time=0;time<KEY_TIME_OUT;time++);
     if(~(inl(IOPDATA))&0x800);
     key_value=3;
   }
   if(~(inl(IOPDATA))&0x1000)
   { for(time=0;time<KEY_TIME_OUT;time++);
     if(~(inl(IOPDATA))&0x1000)
     key_value=1;
   }
  
   if(~(inl(IOPDATA))&0x2000)
   {
     for(time=0;time<KEY_TIME_OUT;time++);
     if(~(inl(IOPDATA))&0x20000)
     key_value=2;
   }
 // printf(" enter key %i\n",key_value);
  return key_value;
  }