WINCE 6.0中断计数流驱动例程

// counter.cpp : 定义 DLL 应用程序的入口点。

//

#include "stdafx.h"

#include <windows.h>

#include <commctrl.h>

#include <Pkfuncs.h>

#include "s2440.h"

volatile IOPreg * v_pIOPreg;

volatile INTreg * v_pINTreg;

UINT32 SysIntr;

HANDLE INTThread;//中断线程句柄

HANDLE INTEvent;//中断事件句柄

int num = 0;

extern "C" {BOOL VirtualCopy(LPVOID,LPVOID,DWORD,DWORD);}

DWORD WINAPI INTProcessThread (void);

BOOL APIENTRY DllMain( HANDLE hModule,

DWORD ul_reason_for_call,

LPVOID lpReserved

)

{

switch ( ul_reason_for_call )

{

case DLL_PROCESS_ATTACH:

RETAILMSG(1, (_T("COU_PROCESS_ATTACH\r\n")));

//DisableThreadLibraryCalls((HMODULE) hModule);

break;

case DLL_PROCESS_DETACH:

RETAILMSG(1, (_T("COU_PROCESS_DETACH\r\n")));

break;

}

return TRUE;

}

DWORD COU_Init(DWORD dwContext)

{

RETAILMSG(1,(_T("COU_INIT++\r\n")));

//IO寄存器初始化

v_pIOPreg = (volatile IOPreg *)VirtualAlloc(0, sizeof(IOPreg), MEM_RESERVE, PAGE_NOACCESS);

if (v_pIOPreg == NULL)

{

ERRORMSG(1,(_T("COU_InitAddrIO: VirtualAlloc failed!\r\n")));

return 0;

}

if (!VirtualCopy((PVOID)v_pIOPreg, (PVOID)(IOP_BASE), sizeof(IOPreg), PAGE_READWRITE | PAGE_NOCACHE))

{

ERRORMSG(1,(_T("COU_InitAddrIO: VirtualCopy failed!\r\n")));

VirtualFree((PVOID) v_pIOPreg, 0, MEM_RELEASE);

v_pIOPreg = NULL;

return 0;

}

//EINT寄存器初始化

v_pINTreg = (volatile INTreg *)VirtualAlloc(0, sizeof(INTreg), MEM_RESERVE, PAGE_NOACCESS);

if (v_pINTreg == NULL)

{

ERRORMSG(1,(_T("COU_InitAddrINT: VirtualAlloc failed!\r\n")));

return 0;

}

if (!VirtualCopy((PVOID)v_pINTreg, (PVOID)(INT_BASE), sizeof(INTreg), PAGE_READWRITE | PAGE_NOCACHE))

{

ERRORMSG(1,(_T("COU_InitAddrINT: VirtualCopy failed!\r\n")));

VirtualFree((PVOID) v_pINTreg, 0, MEM_RELEASE);

v_pINTreg = NULL;

return 0;

}

//IO寄存器设置

v_pIOPreg->rGPGCON &= ~(0x03 << 20);

v_pIOPreg->rGPGCON |= (0x02 << 20);//I/O设定，GPG10(EINT18)脚为EINT功能 20

v_pIOPreg->rGPGUP |= (0X01<<10);//I/O设定，GPG10脚不使用上拉电阻

v_pIOPreg->rEXTINT2 &= ~(0x07 << 8);

v_pIOPreg->rEXTINT2 |= (0x02 << 8);//中断设定，EINT2的EINT18为下降沿触发中断 8

v_pINTreg->rINTMSK &= ~(1 << 2);//中断屏蔽寄存器

v_pIOPreg->rEINTMASK &= ~(0x01 << 18);//开中断

//打开中断响应线程

INTThread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)INTProcessThread, NULL, 0, NULL);

return 1;

}

DWORD COU_Deinit( DWORD dwContext )// future: pointer to the per disk structure

{

RETAILMSG(1,(_T("COU_Deinit++\r\n")));

InterruptDone(SysIntr);

InterruptDisable(SysIntr);

TerminateThread(INTThread,-1);

CloseHandle(INTThread);

CloseHandle(INTEvent);

VirtualFree((void*)v_pIOPreg, sizeof(IOPreg), MEM_RELEASE);

VirtualFree((void*)v_pINTreg, sizeof(INTreg), MEM_RELEASE);

return TRUE;

}

DWORD COU_Open(DWORD dwData,DWORD dwAccess,DWORD dwShareMode)

{

RETAILMSG(1,(_T("COU_Open++\r\n")));

/*//IO寄存器初始化

v_pIOPreg = (volatile IOPreg *)VirtualAlloc(0, sizeof(IOPreg), MEM_RESERVE, PAGE_NOACCESS);

if (v_pIOPreg == NULL)

{

ERRORMSG(1,(_T("COU_InitAddrIO: VirtualAlloc failed!\r\n")));

return 0;

}

if (!VirtualCopy((PVOID)v_pIOPreg, (PVOID)(IOP_BASE), sizeof(IOPreg), PAGE_READWRITE | PAGE_NOCACHE))

{

ERRORMSG(1,(_T("COU_InitAddrIO: VirtualCopy failed!\r\n")));

VirtualFree((PVOID) v_pIOPreg, 0, MEM_RELEASE);

v_pIOPreg = NULL;

return 0;

}

//EINT寄存器初始化

v_pINTreg = (volatile INTreg *)VirtualAlloc(0, sizeof(INTreg), MEM_RESERVE, PAGE_NOACCESS);

if (v_pINTreg == NULL)

{

ERRORMSG(1,(_T("COU_InitAddrINT: VirtualAlloc failed!\r\n")));

return 0;

}

if (!VirtualCopy((PVOID)v_pINTreg, (PVOID)(INT_BASE), sizeof(INTreg), PAGE_READWRITE | PAGE_NOCACHE))

{

ERRORMSG(1,(_T("COU_InitAddrINT: VirtualCopy failed!\r\n")));

VirtualFree((PVOID) v_pINTreg, 0, MEM_RELEASE);

v_pINTreg = NULL;

return 0;

}

//IO寄存器设置

v_pIOPreg->rGPGCON &= ~(0x03 << 20);

v_pIOPreg->rGPGCON |= (0x02 << 20);//I/O设定，GPG10(EINT18)脚为EINT功能 20

//v_pIOPreg->rGPGUP |= (0X01<<10);//I/O设定，GPG10脚不使用上拉电阻

v_pIOPreg->rEXTINT2 &= ~(0x07 << 8);

v_pIOPreg->rEXTINT2 |= (0x02 << 8);//中断设定，EINT2的EINT18为下降沿触发中断 8

//v_pINTreg->rINTMSK &= ~(1 << 2);//中断屏蔽寄存器

//v_pIOPreg->rEINTMASK &= ~(0x01 << 18);//开中断

//打开中断响应线程

INTThread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)INTProcessThread, NULL, 0, NULL);

RETAILMSG(1,(_T("COU_Open--\r\n")));*/

return 1;

}

DWORD COU_Close(DWORD Handle)

{

RETAILMSG(1,(_T("COU_Close++\r\n")));

/*InterruptDisable(SysIntr);

TerminateThread(INTThread,-1);

CloseHandle(INTThread);

CloseHandle(INTEvent);

VirtualFree((void*)v_pIOPreg, sizeof(IOPreg), MEM_RELEASE);

VirtualFree((void*)v_pINTreg, sizeof(INTreg), MEM_RELEASE);

RETAILMSG(1,(_T("COU_Close--\r\n")));*/

return TRUE;

}

DWORD COU_IOControl(DWORD Handle,DWORD dwIoControlCode,PBYTE pInBuf,

DWORD nInBufSize,PBYTE pOutBuf,DWORD nOutBufSize,PDWORD pBytesReturned)

{

return 1;

}

DWORD COU_Read(DWORD Handle, LPVOID pBuffer, DWORD dwNumBytes)

{

//RETAILMSG(1,(_T("num: %d\r\n"),num));

memcpy(pBuffer, &num, sizeof(num));

return 1;

}

DWORD COU_Write(DWORD Handle, LPCVOID pBuffer, DWORD dwNumBytes)

{

RETAILMSG(1,(_T("COU_Write++\r\n")));

num = 0;

return 1;

}

DWORD COU_Seek(DWORD Handle, long lDistance, DWORD dwMoveMethod)

{

return 1;

}

void COU_PowerUp(void)

{}

void COU_PowerDown(void)

{}

DWORD WINAPI INTProcessThread (void)

{

RETAILMSG(1,(_T("INTProcessThread++\r\n")));

UINT32 IRQ = 46; //IRQ_EINT18 46

//动态映射IRQ

if (!KernelIoControl(IOCTL_HAL_REQUEST_SYSINTR, &IRQ, sizeof(UINT32), &SysIntr, sizeof(UINT32), NULL))

{

RETAILMSG(1, (TEXT("ERROR: kEYBD: Failed to request sysintr value.\r\n")));

return FALSE;

}

//RETAILMSG(1,(_T("KernelIoControl_Done\r\n")));

//建立中断事件

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

if (!INTEvent)

{

RETAILMSG(1, (TEXT("ERROR: kEYBD: Failed to create event.\r\n")));

return FALSE;

}

//将中断事件与中断号联系起来

if (!InterruptInitialize(SysIntr, INTEvent, NULL, 0))

{

RETAILMSG(1,(TEXT("Fail to initialize interrupt event\r\n")));

return FALSE;

}

//RETAILMSG(1,(_T("InterruptInitialize_Done\r\n")));

while(1)

{

//RETAILMSG(1,(_T("count++\r\n")));

WaitForSingleObject(INTEvent, INFINITE);

//RETAILMSG(1,(_T("count--\r\n")));

num++;

//v_pIOPreg->rEINTMASK &= (0x1<<18);

InterruptDone(SysIntr);

}

RETAILMSG(1,(_T("INTProcessThread--\r\n")));

return TRUE;

}