#include <s3c2410.h>
#include <serial.h>
#include <sched.h> 
#include <swi.h>
#include <interrupt.h> 

#define	GPB7_out	(1<<(7*2))
#define	GPB8_out	(1<<(8*2))
#define	GPB9_out	(1<<(9*2))
#define	GPB10_out	(1<<(10*2))
#define	NULL	0
 
static unsigned long m_RandSeed;

/* 隨機(jī)函數(shù) */
inline unsigned long  Rand(void)  
{
    return (m_RandSeed=1664525L*m_RandSeed+1013904223L)>>5;
}

void wait(unsigned long dly)
{
	for(; dly > 0; dly--);
}

int main(void)
{
	unsigned long i=0;
	char str[2];
	str[1] = '\0';

	init_uart();	//波特率57600，8N1(8個(gè)數(shù)據(jù)位，無(wú)校驗(yàn)位，1個(gè)停止位)
	
	DPRINTK(KERNEL_DEBUG,"\n\rkernel:enter main\n\r");			

	OS_ENTER_CRITICAL();	
	
	sched_init();

	/**************************************************************
	* int OSCreateProcess(unsigned long nand_start_addr, unsigned long len, char *parameters, long priority)
	* 參數(shù)為：用戶(hù)進(jìn)程在nand flash的位置、長(zhǎng)度，運(yùn)行參數(shù)，優(yōu)先級(jí)
	* 運(yùn)行參數(shù)與在linux臺(tái)下運(yùn)行命令相似：比如我們執(zhí)行echo  "usr/local",那么：
	* 您應(yīng)該把你編的echo代碼下載到nand flah中，讓parameters="usr/local"
	**************************************************************/

	//創(chuàng)建26個(gè)進(jìn)程，每個(gè)進(jìn)程重復(fù)輸出一個(gè)子母
	//代碼在user_program/UART中
	for(i = 'A'; i <= 'Z'; i++){
		
		str[0] = i;
		
		OSCreateProcess(12*1024,1024,str,5+(Rand()&0x3f));
	}

	//創(chuàng)建10個(gè)進(jìn)程，每個(gè)進(jìn)程重復(fù)輸出一個(gè)數(shù)字
	//代碼在user_program/UART中
//	for(i = '0'; i <= '9'; i++){
//		
//		str[0] = i;
//		
//		OSCreateProcess(12*1024,1024,str,5+(Rand()&0x3f));
//	}
	
	/****************************************************************
	* 創(chuàng)建進(jìn)程，代碼在user_program/LEDS中
	* 本進(jìn)程使用4個(gè)LED進(jìn)行計(jì)數(shù)，我的開(kāi)發(fā)板使用GPB7-10引腳
 	****************************************************************/
	OSCreateProcess(13*1024,1024,NULL,40);	

	OS_EXIT_CRITICAL();		

	DPRINTK(KERNEL_DEBUG,"\n\rkernel:first\n\r");	

	while(1){
		DPRINTK(KERNEL_DEBUG,"kernel:process 0\n\r");
		printk("process 0, idle\n\r");
		wait(5000000);
	}

	return 0;
}