uhal.c

s3c2410的源代码

/***************************************************************************\
	Copyright (c) 2004-2007 [e-mail], All rights reserved.
	by threewter	2004.5.12
\***************************************************************************/
/***************************************************************************\
    #说明: C  main 函数，ucos-ii初始化等定义
	----------------------------------  Bug  --------------------------------------

	----------------------------------  TODO list  --------------------------------------

	----------------------------------修正--------------------------------------

	2004-5-12	移植

\***************************************************************************/

#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>

//#include "../ucos-ii/includes.h"
#include "../inc/lib.h"
#include "../inc/macro.h"
#include "../inc/reg2410.h"
#include "uhal.h"
#include "isr.h"


#define _TICK		900000
void irq_Timer4(int vector, int ndev);
//Initialize timer that is used OS.
void InitTimer4(void)//use timer4
{
	//the following code is for s3c2410, use timer4 for tick
	//rTCFG0=0x0f0f;	//timer 0,1,2,3,4 16 prescaler
	rTCFG0=0x0f|100<<8;	
	rTCFG1=0x11111|(0x3<<16);
	//rTCFG1=(0x3)|(0x3<<4)|(0x3<<8)|(0x3<<12)|(0x3<<16);
	//rTCFG1=0x11111;	//timer 0,1,2,3,4 1/4 divider
	//rTCNTB4= PCLK/16/4/_TICK;
	rTCNTB4=0xffff;
	rTCON=TCON_4_UPDATE;	//update mode for TCNTB4 and TCMPB4.
	rTCON=TCON_4_AUTO;		//timer4 = auto reload, start

	//rCLKCON |= CLKCON_PWM;
}///uHALr_InitTimers

void uHALr_InterruptRequestInit()
{
#if 0
	pISR_UNDEF= (unsigned) DebugUNDEF;
	pISR_SWI= (unsigned) DebugSWI;
	pISR_PABORT= (unsigned) DebugABORT;
	pISR_DABORT= (unsigned) DebugABORT;
//	pISR_RESERVED
	pISR_IRQ= (unsigned) IRQ_Handler;	//irq interrupt
	pISR_FIQ= (unsigned) DebugFIQ;

///////////////////////No use////////////////////////
	pISR_ADC= (unsigned) BreakPoint;
	pISR_RTC= (unsigned) BreakPoint;
	pISR_UTXD1= (unsigned) BreakPoint;
	pISR_UTXD0= (unsigned) BreakPoint;
	pISR_SIO= (unsigned) BreakPoint;
	pISR_IIC= (unsigned) BreakPoint;
	pISR_URXD1= (unsigned) BreakPoint;
	pISR_URXD0= (unsigned) BreakPoint;
	//remove by eric rong//	pISR_EINT67= (unsigned) BreakPoint;
	pISR_WDT= (unsigned) BreakPoint;
	pISR_TIMER3= (unsigned) BreakPoint;
	pISR_TIMER2= (unsigned) BreakPoint;
	pISR_TIMER1= (unsigned) BreakPoint;
	//	pISR_TIMER0= (unsigned) BreakPoint;
	//remove by eric rong//	pISR_UERR1= (unsigned) BreakPoint;
	//remove by eric rong//	pISR_UERR0= (unsigned) BreakPoint;
	pISR_BDMA1= (unsigned) BreakPoint;
	pISR_BDMA0= (unsigned) BreakPoint;
	pISR_ZDMA1= (unsigned) BreakPoint;
	pISR_ZDMA0= (unsigned) BreakPoint;
	//remove by eric rong//	pISR_EINT5= (unsigned) BreakPoint;
	//remove by eric rong//	pISR_EINT4= (unsigned) BreakPoint;
	pISR_EINT3= (unsigned) BreakPoint;
	pISR_EINT2= (unsigned) BreakPoint;
	pISR_EINT1= (unsigned) BreakPoint;
	pISR_EINT0= (unsigned) BreakPoint;
/////////////////////////////////////////////////////
#endif
}

void start_Timerinterrupt(void)
{
    rTCON |=TCON_4_ONOFF;	//start timer4;
	
	SetISR_Interrupt(IRQ_TIMER4, (Interrupt_func_t)irq_Timer4, NULL);
}

void BreakPoint(void)
{
	printf("!!!Enter break point.\n");

	for(;;);
}//BreakPoint

void OutDebug(unsigned int num)
{
	printf("\n***STACK***:%d\r\n", num);
}//OutDebug

//Define pre & post-process routines for Interrupt.
void uHALir_DefineIRQ(void *is, void *iq, void *n)
{
}//uHALir_DefineIRQ

static int I_COUNT=0;

void Enter_UNDEF(void)
{
	printf("!!!Enter UNDEFINED. %d\r\n", I_COUNT++);

	for(;;);
}//BreakPoint


void Enter_SWI(void)
{
	printf("!!!Enter SWI. %d\r\n", I_COUNT++);	

	for(;;);
}

void Enter_PABORT(void)
{
	printf("!!!Enter Prefetch ABORT %d\r\n", I_COUNT++);

	for(;;);
}

void Enter_DABORT(void)
{
	printf("!!!Enter Data ABORT %d\r\n", I_COUNT++);

	for(;;);
}

void Enter_FIQ(void)
{
	printf("!!!Enter FIQ. %d\r\n", I_COUNT++);

	for(;;);
}

unsigned int PCLK=0, HCLK=0, FCLK=0;

void ARMTargetInit(void)
{
	//MMU_Init();
	s3c2410_cpu_init();

	Uart_Init(0,115200);
	Uart_Init(1,115200);

	printk("\nBegin to run uC/OS-II!\n");

	hudelay(0);	//计算延时循环
		//init_SIO();
//#if (USE_YAFFS==0)
//	NandFlash_init();
//#endif
	uHALr_InitInterrupts();

//	uHALr_InitTimers();
	uHALr_InterruptRequestInit();

//#if USE_MINIGUI==0
//	LCD_Init();             //初始化LCD模块
//#endif

}