nettask.c

采集板软件和人机界面软件之间的通信协议实现。包含目标板(vxworks)和pc端(vc 6.0)两个代码

/**********************************************************************
 chengjy@felab, copyright 2002-2004
 netTask.c														
 总的任务解析。
 所有函数格式统一 :
 	char t0xXXXX(char *pBuff)
 所有函数都被调用:
 	void netCMDExplain();
 所有的函数的返回值都为char 型，分为STATUS_NORMAL(成功)和失败
 (STATUS_ERROR等)。具体任务内容参见通讯协议。本文件仅仅给出
 软件框架，用户可以根据自己的通讯协议添加或者删除函数，
 并修改具体的内容。
 调用:
		netSvr.c
			char netCMDAdd(unsigned char *pBuff, int buffLen, int cmdNum, unsigned char priority);
 被调用:	
 		netSvr.c
			void netCMDExplain();
 **********************************************************************/
#include "vxWorks.h"
#include "logLib.h"
#include "taskLib.h"
#include "stdio.h"
#include "memLib.h"
#include "stdLib.h"
#include "sysLib.h"	
#include "bootLib.h"

#include "board.h"

/*netSvr.c*/
extern char netCMDAdd(unsigned char *pBuff, int buffLen, int cmdNum, unsigned char priority);

/*可接受的命令号*/
char t0x0200(unsigned char *pBuff);	/*参数配置*/
char t0x0400(unsigned char *pBuff);	/*reset*/  
char t0x1600(unsigned char*pBuff);	/*flash程序下载*/

/**********************************************************************
char t0x0200(unsigned char *pBuff)
函数描述:	获得控制界面发来的配置信息，配置全局变量
网络返回:	执行结束后发送9byte帧
调用:	
		netSvr.c
			char netCMDAdd(unsigned char *pBuff, int buffLen, int cmdNum, unsigned char priority);
**********************************************************************/
char t0x0200(unsigned char *pBuff)
{
	char state = STATUS_NORMAL;
	unsigned char *pSendBuff;
	int i, len;
	logMsg("t0x0200: beging...\n",0,0,0,0,0,0);

	/*解析参数并配置参数，根据情况设定state参数*/

	/*测试用代码，打印0x0200的所有参数*/
	len = pBuff[2]*0x01000000+pBuff[3]*0x00010000+pBuff[4]*0x00000100+pBuff[5]-8;
	if(len!=0)
	{
		logMsg("t0x0200: print out %d params for 0x0200\n",len,0,0,0,0,0);
		for(i=0;i<len;i++)
		{
			printf("%c",pBuff[i+8]);
			if(i%60==59)
				printf("\n");
		}
		printf("\n");
	}
	else
	{
		logMsg("t0x0200: 0x0200 has no params\n",0,0,0,0,0,0);
	}
	/*网络返回*/ 
	pSendBuff = malloc(9*sizeof(char));
	if(pSendBuff!=NULL)
	{
		pSendBuff[8] = state;
		netCMDAdd(pSendBuff,9,0x0200,QUEUE_PRI_LOW);
	}
	else
	{
		logMsg("t0x0200: unable to malloc net return buff\n",0,0,0,0,0,0);
		state = STATUS_ERROR;
	}
	 
	logMsg("t0x0200: ended\n",0,0,0,0,0,0);
	return(state);
}

/**********************************************************************
char t0x0400(unsigned char *pBuff)
函数描述:	单板重启动
网络返回:	无
调用:			无
**********************************************************************/
char t0x0400(unsigned char *pBuff)
{
	logMsg("t0x0400: beging...\n",0,0,0,0,0,0);
	reboot(BOOT_NORMAL);	/*之后的语句不会被执行*/
	logMsg("t0x0400: ended\n",0,0,0,0,0,0);
	return(STATUS_NORMAL);
}

/**********************************************************************
char t0x1600(unsigned char*pBuff)
函数描述:	将vxWorks文件（对于单板来说就时vxWorks.bin）
				下载到Flash，准备下次启动时使用。
网络返回:	配置后发送发送9byte帧
调用:			外部的Flash操作函数
**********************************************************************/
char t0x1600(unsigned char*pBuff)
{
	char state;
	unsigned char *pSendBuff;
	int len;

	logMsg("t0x1600: begin...\n",0,0,0,0,0,0);

	/*len表示vxWorks.bin的总长度*/
	len = pBuff[2]*0x01000000+pBuff[3]*0x00010000+pBuff[4]*0x00000100+pBuff[5]-8;
	/*在vxWorks.bin前添加4byte表示总长度信息，一起写入flash*/
	pBuff[4]=(unsigned char)((len>>24)&0xFF);
	pBuff[5]=(unsigned char)((len>>16)&0xFF);
	pBuff[6]=(unsigned char)((len>>8)&0xFF);
	pBuff[7]=(unsigned char)(len&0xFF);
		
	/*网络返回*/ 
	pSendBuff = malloc(9*sizeof(char));
	if(pSendBuff!=NULL)
	{
		pSendBuff[8] = state;
		netCMDAdd(pSendBuff,9,0x1600,QUEUE_PRI_LOW);
	}
	else
	{
		logMsg("t0x1600: unable to malloc net return buff\n",0,0,0,0,0,0);
		state = STATUS_ERROR;
	}
	logMsg("t0x1600: ended\n",0,0,0,0,0,0);
	return(state);
}