中断流驱动问题（补充）

小鱼

中断流驱动问题（补充） [复制链接]

/*******************************/
DWORD PBT_IntrThread(PVOID pArg)
{
  DWORD ret;
//PBT_InitializeAddresses();

//PBT_EnableInterrupt();

gPwrButtonIntrEvent[0] = CreateEvent(NULL, FALSE, FALSE, NULL);
  gPwrButtonIntrEvent[1] = CreateEvent(NULL, FALSE, FALSE, NULL);
  gPwrButtonIntrEvent[2] = CreateEvent(NULL, FALSE, FALSE, NULL);
  gPwrButtonIntrEvent[3] = CreateEvent(NULL, FALSE, FALSE, NULL);


if (!(InterruptInitialize(g_PwrButtonSysIntr, gPwrButtonIntrEvent[0], 0, 0)))
{
RETAILMSG(1, (TEXT("ERROR: PwrButton: Interrupt initialize failed.\r\n")));
CloseHandle(gPwrButtonIntrEvent[0]);
return 0;
}

if (!(InterruptInitialize(g_Key2SysIntr, gPwrButtonIntrEvent[1], 0, 0)))
{
RETAILMSG(1, (TEXT("ERROR: PwrButton: Interrupt initialize failed.\r\n")));
CloseHandle(gPwrButtonIntrEvent[1]);
return 0;
}
if (!(InterruptInitialize(g_Key3SysIntr, gPwrButtonIntrEvent[2], 0, 0)))
{
RETAILMSG(1, (TEXT("ERROR: PwrButton: Interrupt initialize failed.\r\n")));
CloseHandle(gPwrButtonIntrEvent[2]);
return 0;
}
if (!(InterruptInitialize(g_Key4SysIntr, gPwrButtonIntrEvent[3], 0, 0)))
{
RETAILMSG(1, (TEXT("ERROR: PwrButton: Interrupt initialize failed.\r\n")));
CloseHandle(gPwrButtonIntrEvent[3]);
return 0;
}

while (1)
{
//ret = WaitForSingleObject(gPwrButtonIntrEvent, INFINITE);
//ret = WaitForMultipleObjects(gPwrButtonIntrEvent, INFINITE);
ret = WaitForMultipleObjects(4,gPwrButtonIntrEvent,FALSE,INFINITE);

//if((ret==WAIT_OBJECT_0)&&(g_bKillIST==FALSE ))
switch(ret)
{
case WAIT_OBJECT_0: //按键1
if(PBT_IsPushed()==1)
{
Sleep(20);
   if(PBT_IsPushed()==1)
{
SetEvent(gReadKeyEvent[0]);

RETAILMSG(1, (TEXT("The button is Down!!!!!!!LTH~~~~~\r\n")));
}
}
InterruptDone(g_PwrButtonSysIntr);
      RETAILMSG(1, (TEXT("The Eint0 is Done!!!!!!!LTH~~~~~\r\n")));

break;
case WAIT_OBJECT_0+1:
   if(PBT_IsPushed()==2)
{
Sleep(20);
   if(PBT_IsPushed()==2)
{
SetEvent(gReadKeyEvent[1]);
}
}
InterruptDone(g_Key2SysIntr);
      RETAILMSG(1, (TEXT("The Eint1 is Done!!!!!!!LTH~~~~~\r\n")));

break;
case WAIT_OBJECT_0+2:
if(PBT_IsPushed()==4)
{
Sleep(20);
   if(PBT_IsPushed()==4)
{
SetEvent(gReadKeyEvent[2]);

//RETAILMSG(1, (TEXT("The button is Down!!!!!!!LTH~~~~~\r\n")));
}
}
InterruptDone(g_Key3SysIntr);
      RETAILMSG(1, (TEXT("The Eint2 is Done!!!!!!!LTH~~~~~\r\n")));



break;
case WAIT_OBJECT_0+3:

if(PBT_IsPushed()==8)
{
Sleep(20);
   if(PBT_IsPushed()==8)
{
SetEvent(gReadKeyEvent[3]);

//RETAILMSG(1, (TEXT("The button is Down!!!!!!!LTH~~~~~\r\n")));
}
}
InterruptDone(g_Key4SysIntr);
      RETAILMSG(1, (TEXT("The Eint4 is Done!!!!!!!LTH~~~~~\r\n")));


break;

default:
CloseHandle(gPwrButtonIntrEvent[0]);
CloseHandle(gPwrButtonIntrEvent[1]);
CloseHandle(gPwrButtonIntrEvent[2]);
CloseHandle(gPwrButtonIntrEvent[3]);
      return 0;

}
}
return 1;

}

总是返回WAIT_OBJECT_0？？？？？？？？？？为什么啊？？我用多个外部中断关联到这个IST上，这样做有问题吗？

gxh81

你的上个帖子我已经说过，WaitForMultipleObjects不能用于等待经过InterruptInitialize处理的事件。
可以将多个中断关联到同一个事件，然后使用WaitForSingleObject，在中断程序中判断是哪个中断过来的，然后再进行相应的处理。

wcs

帮顶,Veabol正解。。。

LZ想了解WaitForMultipleObjects，不妨看看背光驱动，比较典型

pcb168

引用 1 楼 veabol 的回复:
你的上个帖子我已经说过，WaitForMultipleObjects不能用于等待经过InterruptInitialize处理的事件。
可以将多个中断关联到同一个事件，然后使用WaitForSingleObject，在中断程序中判断是哪个中断过来的，然后再进行相应的处理。

背光、触摸屏驱动都是典型例子。呵呵

小马

需要将你的按键按下的中断和事件绑定。
http://www.cnblogs.com/we-hjb/archive/2009/05/26/1490461.html
这篇文章推荐过很多次了。。很好的中断开发入门文章

mxcb2008

http://www.cnblogs.com/we-hjb/archive/2009/05/26/1490461.html
再说一句，，这个文章中IST的介绍已经说的很详细了。LZ可以参考的

eedede

学习ing

coolbi5

/*******************************/
DWORD PBT_IntrThread(PVOID pArg)
{
  DWORD ret;
//PBT_InitializeAddresses();

//PBT_EnableInterrupt();

// gPwrButtonIntrEvent[0] = CreateEvent(NULL, FALSE, FALSE, NULL);
//  gPwrButtonIntrEvent[1] = CreateEvent(NULL, FALSE, FALSE, NULL);
//  gPwrButtonIntrEvent[2] = CreateEvent(NULL, FALSE, FALSE, NULL);
//  gPwrButtonIntrEvent[3] = CreateEvent(NULL, FALSE, FALSE, NULL);

  gKeyWaitEvent  = CreateEvent(NULL, FALSE, FALSE, NULL);

//多个中断关联到一个事件上
if (!(InterruptInitialize(g_Key1SysIntr, gKeyWaitEvent, 0, 0)))
{
RETAILMSG(1, (TEXT("ERROR: PwrButton: Interrupt initialize failed.\r\n")));
CloseHandle(gKeyWaitEvent);
return 0;
}

if (!(InterruptInitialize(g_Key2SysIntr, gKeyWaitEvent, 0, 0)))
{
RETAILMSG(1, (TEXT("ERROR: PwrButton: Interrupt initialize failed.\r\n")));
CloseHandle(gKeyWaitEvent);
return 0;
}
if (!(InterruptInitialize(g_Key3SysIntr, gKeyWaitEvent, 0, 0)))
{
RETAILMSG(1, (TEXT("ERROR: PwrButton: Interrupt initialize failed.\r\n")));
CloseHandle(gKeyWaitEvent);
return 0;
}
if (!(InterruptInitialize(g_Key4SysIntr, gKeyWaitEvent, 0, 0)))
{
RETAILMSG(1, (TEXT("ERROR: PwrButton: Interrupt initialize failed.\r\n")));
CloseHandle(gKeyWaitEvent);
return 0;
}

while (1)
{
ret = WaitForSingleObject(gKeyWaitEvent, INFINITE);
//ret = WaitForMultipleObjects(gPwrButtonIntrEvent, INFINITE);
//ret = WaitForMultipleObjects(4,gPwrButtonIntrEvent,FALSE,INFINITE);

if((ret==WAIT_OBJECT_0)&&(g_bKillIST==FALSE ))
{
switch(PBT_IsPushed())
{
case 1: //按键1
//if(PBT_IsPushed()==1)

Sleep(20);
   if(PBT_IsPushed()==1)
{
SetEvent(gReadKeyEvent[0]);

RETAILMSG(1, (TEXT("The button is Down!!!!!!!LTH~~~~~\r\n")));
}

InterruptDone(g_Key1SysIntr);
      RETAILMSG(1, (TEXT("The Eint0 is Done!!!!!!!LTH~~~~~\r\n")));

break;
case 2:
   //if(PBT_IsPushed()==2)
{
Sleep(20);
   if(PBT_IsPushed()==2)
{
SetEvent(gReadKeyEvent[1]);
}
}
InterruptDone(g_Key2SysIntr);
      RETAILMSG(1, (TEXT("The Eint1 is Done!!!!!!!LTH~~~~~\r\n")));

break;
case 3:
//if(PBT_IsPushed()==4)
{
Sleep(20);
   if(PBT_IsPushed()==3)
{
SetEvent(gReadKeyEvent[2]);

//RETAILMSG(1, (TEXT("The button is Down!!!!!!!LTH~~~~~\r\n")));
}
}
InterruptDone(g_Key3SysIntr);
      RETAILMSG(1, (TEXT("The Eint2 is Done!!!!!!!LTH~~~~~\r\n")));



break;
case 4:

//if(PBT_IsPushed()==8)
{
Sleep(20);
   if(PBT_IsPushed()==4)
{
SetEvent(gReadKeyEvent[3]);

//RETAILMSG(1, (TEXT("The button is Down!!!!!!!LTH~~~~~\r\n")));
}
}
InterruptDone(g_Key4SysIntr);
      RETAILMSG(1, (TEXT("The Eint4 is Done!!!!!!!LTH~~~~~\r\n")));


break;

default:
//CloseHandle(gPwrButtonIntrEvent[0]);
//CloseHandle(gPwrButtonIntrEvent[1]);
//CloseHandle(gPwrButtonIntrEvent[2]);
//CloseHandle(gPwrButtonIntrEvent[3]);

      break;

}
  }
  else {
          CloseHandle(gKeyWaitEvent);
      return 0;
  }
}
return 1;

}
}

我把多个中断关联到一个事件上，刚开始4个按键都能用，按几下有的就不能用了，最后甚至都不能用？为什么啊？是不是哪儿没有释放？

ywjang

检测出哪个中断之后清一下相应的PND之类的位试试。

jwj

你这样在每个case下面进行interruptDone，可能存在当多个key同时按下的时候，有可能会漏掉。

试试在最后面，将中断都clear一下。

InterruptDone(g_Key1SysIntr);
InterruptDone(g_Key2SysIntr);
InterruptDone(g_Key3SysIntr);
InterruptDone(g_Key4SysIntr);

参考一下

感谢各位热心帮忙，这个问题分比较少，要结贴了，虽然有的兄弟没有得分，偶心里依然感激，呵呵 *eeworld热心的朋友不少

中断流驱动问题（补充） [复制链接]

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