main.c

UCOS在CS8900上面移植代码

/******************************************************************************
* Filename     : main.c                                                       *
* Program      : loader.                                                      *
* Copyright    : Copyright (C) 2001, Young-Su, Ahn.                           *
* Author       : Young-Su, Ahn <[e-mail]>                           *
* Description  : main function of c code.                                     *
*                Get Command table and run it.                                *
* Created at   : Wed Mar 13 2001.                                             *
* Based on     : blob-1.0.8-pre2 (http://www.lart.tudelft.nl)                 *
* Modified by  :                                                              *
* Modified at  :                                                              *
******************************************************************************/
/* This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include "main.h"
//#include "scc.h"
#include "includes.h"
#include "stdio.h"


// 傈开函荐.
LOADER_STATUS	status;

// function prototype.
void BeforeMain();
void CMain(void);

void BeforeMain()
{
    register ulong *dest = (ulong  *)LOADER_DRAM_BASE;
    register ulong *src  = (ulong  *)LOADER_SRAM_BASE;
    register ulong len = LOADER_DRAM_MAX_SIZE/4; 
    void 			(*JumpTo)(void);
    while(len--) *dest++ = *src++;
	JumpTo = CMain;
	JumpTo();
	return;
}
// 开且 : command mode狼 main function.
// 概俺 :
// 馆券 :
// 林狼 :
void CMain(){
	int	i;
	bool	autoboot=true;
	char	cmd[128];
	long	timeout;
	int	argc=0;
	char	*argv[3];

	///// when configuration of blob exist at end of flash block, /////////////
	///// if no key input read it. ////////////////////////////////////////////


	///// Set environment of blob. ////////////////////////////////////////////
	// initiate status.
	status.terminalSpeed = SERIAL_SPEED;
	status.downloadSpeed = SERIAL_DOWNLOAD_SPEED;


	///// initiate serial and timer. //////////////////////////////////////////
	// serial and timer init.
	SerialInit(status.terminalSpeed);
	TimerInit2();  //time.h
//#ifdef USE_LCD_LOGO
//	ViewLogo();
//#endif

/////////////////////////////////// printf the required GPL string. //////////////////////////////////////
	printf("\n\n\nWelcome.\n");
	printf(PACKAGE "-" VERSION "\nCopyright (C) 2001 T&B Tronics.\n");
	printf(PACKAGE " comes with ABSOLUTELY NO WARRANTY; Read the GNU GPL for details.\n");
	printf("This is free software, and you are welcome to redistribute it\n");
	printf("under certain conditions; read the GNU GPL for details.\n");

	// 俊矾啊 乐阑 锭 皋矫瘤 免仿阑 困秦 捞镑俊 困摹.
	printf("\n");

	///// wait 10 seconds before starting autoboot. ///////////////////////////
	printf("Autoboot in progress, press any key to stop ");

	/*for (i=0; i<DELAY_BEFORE_BOOT; i++){
		timeout = GetTime() + HZ;	// 1檬埃 Delay //time.h
		printf(".");
		while (GetTime()<timeout){
			if (UTSR1 & UTSR1_RNE){	// Serial肺 Input捞 乐阑 锭.
				UTDR;				// 甸绢柯 涝仿 蔼 公矫...
				autoboot = false;
				break;
			}
		}
		if (autoboot==false) break;
	}*/
        

	///// No key was pressed, so proceed booting the kernel. //////////////////
	if (autoboot){
		printf("Autoboot started.\n");
		//MemCpy((char *)KERNEL_DRAM_BASE, (char *)KERNEL_SRAM_BASE, KERNEL_MAX_SIZE);
		//MemCpy((char *)RAMDISK_DRAM_BASE, (char *)RAMDISK_SRAM_BASE, RAMDISK_MAX_SIZE);
		
		//for (cptr=cmdTbl; cptr->cmd; cptr++){
		//	if (!StrCmp(cptr->cmd, "boot")) break;
		//}
		
		//DoBootKernel(cptr, 1, 0);
		C_Entry();
	}else{
//	        C_Entry();
	}
} // CMain.