请教wince-lover个问题，关于button的

楼主^#

更多发布于：2007-04-11 16:40

  我的按键中的中断是和s3c2440a的eint0口相接。处理代码如下，在PWR_IST中如果要实现一按按键后，PWR_IST接到中断后执行唤醒功能，应该如何在PWR_IST添加代码？还有就是GetSystemPowerState是如何得到当前电源的状态的？POWER_STATE(dwStateFlags)是如何知道当前电源的状态的
PPWR_CONTEXT PWR_Init(PVOID Context)
{
   if ( (pPWR->ISTEvent = CreateEvent(NULL, FALSE, FALSE, NULL)) != NULL)
   {
   if( InterruptInitialize(SYSINTR_POWER, pPWR->ISTEvent, NULL, 0) )
   {
   if ( (pPWR->IST = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE) PWR_IST, pPWR, 0, NULL)) != NULL)
   {
   ......
   }
   }
   }
}

static DWORD PWR_IST(PPWR_CONTEXT pPWR)
{
int CurrStatus = RUN;
   DWORD we;
   WCHAR state[1024] = {0};
   LPWSTR pState = &state[0];
   DWORD dwBufChars = (sizeof(state) / sizeof(state[0]));
   DWORD dwStateFlags = 0;
   DWORD dwErr;


   if (!pPWR)
   return ERROR_INVALID_PARAMETER;
   while (1) {
   __try {
   we = WaitForSingleObject(pPWR->ISTEvent, INFINITE);
   RETAILMSG(1,(TEXT("\r\nPWR_IST: pPWR->State = 0x%x \r\n"), pPWR->State));
   //#define GetSystemPowerState WIN32_DEV_CALL(DWORD, 18, (LPCWSTR pBuffer, DWORD Length, PDWORD pFlags))
   dwErr = GetSystemPowerState(pState, dwBufChars, &dwStateFlags);
   if (ERROR_SUCCESS != dwErr)
   {
   RETAILMSG(1, (TEXT("PMGET!GetSystemPowerState:ERROR:%d\n"), dwErr));
   }
   else
   {
   RETAILMSG(1, (TEXT("PMGET! System Power state is '%s', flags 0x%08x\n"), state, dwStateFlags));
   switch (POWER_STATE(dwStateFlags))
   {
   case POWER_STATE_ON:
   break;
   case POWER_STATE_OFF:
   break;
   case POWER_STATE_CRITICAL:
   break;
   case POWER_STATE_BOOT:
   break;
   case POWER_STATE_IDLE:
   break;
   case POWER_STATE_SUSPEND:
   break;
   case POWER_STATE_RESET:
   break;
   case 0:
   break;
   default:

   break;
   }
   }

   switch (pPWR->State) {
   case RUN:
   RETAILMSG(1, (TEXT("PWR_IST: RUN\r\n")));
   if (CurrStatus == SUSPEND)
   {

   pPWR->State = RUN;
   CurrStatus = RUN;

   InterruptDone(SYSINTR_POWER);
   SetSystemPowerState( NULL, POWER_STATE_ON, POWER_FORCE );
   continue;
   }
   else if (CurrStatus == RESUME)
   {

   if ( wcscmp(state,TEXT("unattended")) == 0 )
   {
   RETAILMSG(1, (TEXT("Unattended Power Off Mode\r\n")));
   pPWR->State = RUN;
   CurrStatus = SUSPEND;
   continue;
   }
   else
   {
   pPWR->State = RUN;
   CurrStatus = RUN;
   InterruptDone(SYSINTR_POWER);
   SetSystemPowerState( NULL, POWER_STATE_ON, POWER_FORCE );
   continue;
   }
   //else if ( wcscmp(state,TEXT("resuming")) == 0 )
   //{
   //RETAILMSG(1, (TEXT("Still resuming...\r\n")));
   //Sleep(1000);
   //SetEvent(pPWR->ISTEvent);
   //continue;
   //}
   }
   break;
   case INITIALIZE:
   // Keep from reading our clear on read INTx registers
   // during init.
   RETAILMSG(1, (TEXT("PWR_IST: INITIALIZE\r\n")));
   Sleep(10);
   continue;
   break;
   case SUSPEND:
   RETAILMSG(1, (TEXT("PWR_IST: SUSPEND\r\n")));
   //continue;
   break;
   case RESUME:
   continue;
   break;
   case ADC_ERROR:
   RETAILMSG(1,(TEXT("PWR_IST: %s \r\n"), pPWR->State == RESUME ? L"RESUME" : L"ADC_ERROR" ));
   pPWR->State = RUN;
   CurrStatus = RESUME;
   // clear any potential pending ADC interrupt
   InterruptDone(SYSINTR_POWER);
   Sleep(200);
   SetEvent(pPWR->ISTEvent);
   //SetSystemPowerState( NULL, POWER_STATE_ON, POWER_FORCE );
   continue;
   break;
   case UNINITIALIZED:
   RETAILMSG(1,(TEXT("PWR_IST: ExitThread \r\n")));
   ExitThread(ERROR_SUCCESS);
   return ERROR_SUCCESS;

   default:
   RETAILMSG(1,(TEXT("PWR_IST: unknown state: %u\r\n"), pPWR->State));
   TEST_TRAP;
   continue;
   break;
   }

   //
   // get status
   //
// EnterCriticalSection(&pPWR->RegCS);
//
// if ( !pPWR->ResetRegReady ) {
// } else {
// // get & restore the cleared registers
// pPWR->ResetRegReady = FALSE;
// }

   LeaveCriticalSection(&pPWR->RegCS);
   // clear the interrupt before power off
   InterruptDone(SYSINTR_POWER);
   CurrStatus = SUSPEND;
   SetSystemPowerState( NULL, POWER_STATE_SUSPEND, POWER_FORCE );
   } _except(EXCEPTION_EXECUTE_HANDLER) {

   RETAILMSG(1,(TEXT("!!! PWR_IST EXCEPTION: 0x%X !!!\r\n"), GetExceptionCode() ));
   }
  }

}

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wince_lover 驱动中牛注册日期2007-01-10 最后登录2010-12-20 粉丝0 关注0 积分1103分威望735点贡献值2点好评度279点原创分1分专家分0分加关注写私信	沙发^# 发布于：2007-04-11 21:54 执行唤醒,不需要在PWR_IST中添加代码.系统的挂起和唤醒是在OEMPowerOff这个函数中实现的.POWER_STATE(dwStateFlags)我也不清楚,你查查帮助吧.
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wince_lover

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板凳^#

发布于：2007-04-13 17:50

引用第0楼lgsspku于2007-04-11 16:40发表的“请教wince-lover个问题，关于button的”:
  我的按键中的中断是和s3c2440a的eint0口相接。处理代码如下，在PWR_IST中如果要实现一按按键后，PWR_IST接到中断后执行唤醒功能，应该如何在PWR_IST添加代码？还有就是GetSystemPowerState是如何得到当前电源的状态的？POWER_STATE(dwStateFlags)是如何知道当前电源的状态的
PPWR_CONTEXT PWR_Init(PVOID Context)
{
   if ( (pPWR->ISTEvent = CreateEvent(NULL, FALSE, FALSE, NULL)) != NULL)
   {
.......

你现在是不能唤醒系统吗？

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dovelike8 驱动牛犊注册日期2009-02-11 最后登录2009-06-02 粉丝0 关注0 积分3分威望31点贡献值0点好评度0点原创分0分专家分0分加关注写私信	地板^# 发布于：2009-02-16 18:43 请问wince_lover,我的中断处理程序和楼主的一样,现在能休眠,但是不能唤醒系统,应该怎样修改
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lth93

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地下室^#

发布于：2010-02-04 18:03

请教一下wince_lover兄，我看了你07年的一个帖子关于电池驱动和触摸屏互斥的？你如何解决的2个驱动之间的句柄共享问题？下面这段代码
在DdsiTouchPanelEnable函数中增加
if(ghBattTouchMutex == NULL )
{
   ghBattTouchMutex = CreateMutex( NULL, FALSE, BATTERY_TOUCH_MUTEX );
}
在PddpTouchPanelDeallocateVm函数中增加
if(ghBattTouchMutex)
  {
   CloseHandle( ghBattTouchMutex );
   ghBattTouchMutex = NULL ;
  }
在DdsiTouchPanelGetPoint函数中读触摸屏采样之前加上
if(ghBattTouchMutex )
{
  WaitForSingleObject(ghBattTouchMutex, 5000);
}
在读完之后加上
if(ghBattTouchMutex )
{
   ReleaseMutex(ghBattTouchMutex);
}

其中ghBattTouchMutex需要在2个驱动之间共享，这一点如何解决的，谢谢先，呵呵

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请教wince-lover个问题，关于button的

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