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從網(wǎng)上找了好久，不是不能用，就是騙子代碼，根本不能用，最可氣的就是掛羊頭賣狗肉，標(biāo)著紅外驅(qū)動(dòng)，用自己寶貴的積分，下載下來(lái)一看根本就不是，浪費(fèi)了我很多時(shí)間，最后沒辦法只能自己動(dòng)手了，這里充分體現(xiàn)了毛主席“自己動(dòng)手，豐衣足食”這句話的重要性。好了廢話不多說(shuō)吧我自己的這幾天的思路告訴大家讓大家以后少走彎路，在這里我也希望廣大網(wǎng)友能夠不吝惜自己的勞動(dòng)成果，把自己的奮斗果實(shí)奉獻(xiàn)下，這樣能讓很多網(wǎng)友少走彎路，大家慶幸之余也會(huì)非常感激”挖井人“的。首先，我是按照單片機(jī)解碼的思路，開始制作的Win CE操作系統(tǒng)的紅外驅(qū)動(dòng)，可把我害苦了。我用的是中斷+定時(shí)器。思路呢和網(wǎng)上所有的都一樣，但是總是卡死在定時(shí)器上，定時(shí)器我用的是微秒級(jí)別的延時(shí)，這樣已進(jìn)入系統(tǒng)，總是不停地去響應(yīng)定時(shí)器的中斷，這樣就卡死在線程了。系統(tǒng)連起都起不來(lái)了，害的我倒騰了好幾天，最后沒辦法只能放棄了，改用延時(shí)，網(wǎng)上有現(xiàn)成的函數(shù)。解碼的遙控器類型有很多，這里我只做了最通用的NEC遙控器，其他的只需要改一下高低電平時(shí)間就行了。NEC紅外協(xié)議，作為接收端來(lái)講，首先是引導(dǎo)碼，有9ms的低電平，然后是4.5ms的高電平，然后是32位的操作碼，對(duì)于按鍵來(lái)說(shuō)我們只需要解第三組就可以了，其他的NEC協(xié)議的知識(shí)可以從網(wǎng)上搜索下有很多的。現(xiàn)在只做紅外接收模塊，將準(zhǔn)備好的杜邦線插在紅外的三個(gè)引腳上，引腳順序，大家從網(wǎng)上搜索下，然后就是找一個(gè)直插的4.7k上拉電阻，接到hs0038的接受引腳和5v引腳中間。由于我的紅外解碼思路是中斷所以只能找中斷引腳了，但是通篇的找飛凌OK210開發(fā)板上中斷引腳真的是太難找了，(⊙o⊙)最后沒辦法只能找已經(jīng)引出的引腳了，最后發(fā)現(xiàn)按鍵上每個(gè)引腳都能用，都是中斷引腳，最后我選擇了外部中斷6，開發(fā)板的k4按鍵，將按鍵的上拉電阻去掉，然后焊接出一條引線，接到紅外接收器的接收引腳。下面是自己焊的紅外接收模塊。

好了硬件準(zhǔn)備完畢，現(xiàn)在開始寫驅(qū)動(dòng)。1.包含的頭文件：

//made in 2013-6-7 by mr wang
#include "stdafx.h"
#include
#include
#include
#include
#include
#include
#include "pmplatform.h"
#include "Pkfuncs.h"
#include
#include
#include "gpioentry_reg.h"
#include
typedef enum
{
EINT_SIGNAL_LOW_LEVEL = 0,
EINT_SIGNAL_HIGH_LEVEL,
EINT_SIGNAL_FALL_EDGE,
EINT_SIGNAL_RISE_EDGE,
EINT_SIGNAL_BOTH_EDGE
} EINT_SIGNAL_METHOD;
typedef enum
{
EINT_FILTER_DISABLE = 0,
EINT_FILTER_DELAY,
EINT_FILTER_DIGITAL
} EINT_FILTER_METHOD;
static volatile GPIO_REG * g_pGPIOReg = NULL;
static DWORD g_dwSysIntrHS38 = SYSINTR_UNDEFINED;
static HANDLE g_hEventHS38 = NULL;
static HANDLE g_hEventResetBtn = NULL;
static HANDLE g_hThreadHS38 = NULL;
static BOOL g_bExitThread = FALSE;
static BOOL pwstatus=TRUE;
void Delay_us(int n);//延時(shí)us
BOOL IRS_date(void);//判斷遙控低電平
static void InitInterrupt(void);//中斷初始化
void IRS_port_init(void); //引腳初始化
void IRS_enable_interrupt(void);//使能中斷
void IRS_disable_interrupt(void);//不使能中斷
void IRS_clear_interrupt_pending(void);//清楚中斷屏蔽位
BOOL IRS_set_filter_method(EINT_FILTER_METHOD eMethod, unsigned int uiFilterWidth);//選擇中斷的filter方式
BOOL IRS_set_interrupt_method(EINT_SIGNAL_METHOD eMethod);//設(shè)置中斷方式
2.解碼線程：
INT WINAPI HS38Thread(void)
{
int i,j;
byte ircode[4];//四位編碼
while(!g_bExitThread)
{
WaitForSingleObject(g_hEventHS38, INFINITE);
if(g_bExitThread)
{
break;
}
IRS_disable_interrupt(); // 禁止中斷
IRS_clear_interrupt_pending(); // 清除中斷標(biāo)志位
InterruptDone(g_dwSysIntrHS38); //中斷完成，開始解碼
Delay_us(8000);//延時(shí)掉ms的低電平，
while(IRS_date());
Delay_us(4000);//4.5ms高電平
while(!IRS_date());
for(j=0;j<4;j++)
{
for(i=0;i<8;i++)
{
while(IRS_date());
Delay_us(700);
if(IRS_date())// send 0
{
ircode[j]=ircode[j]>>1;
}
else
{
ircode[j]=ircode[j]|0x80;
ircode[j]=ircode[j]>>1;
Delay_us(1200);
}
}
}
Sleep(100);
RETAILMSG(1,(TEXT("******* ircode[3] = %x\r\n"),ircode[3]));//打印第三組操作碼，便是按鍵的鍵碼
IRS_enable_interrupt();
}
return 0;
}
3.微妙延時(shí)函數(shù)
void Delay_us(int n)
{
LARGE_INTEGER litmp;
LONGLONG QPart1,QPart2;
double dfMinus, dfFreq, dfTim;
if(QueryPerformanceFrequency(&litmp)==FALSE)
{
return;
}
dfFreq = (double)litmp.QuadPart;
QueryPerformanceCounter(&litmp);
QPart1 = litmp.QuadPart;
do
{
QueryPerformanceCounter(&litmp);
QPart2=litmp.QuadPart;
dfMinus=(double)(QPart2-QPart1);
dfTim=dfMinus/dfFreq;
}while(dfTim <0.000001*n);
}
4.其他流驅(qū)動(dòng)接口函數(shù)
//設(shè)置寄存器地址
BOOL HS38_initialize_register_address(void *pGPIOReg)//,void *pHSReg)
{
if (pGPIOReg == NULL)
{
return FALSE;
}
else
{
g_pGPIOReg = (GPIO_REG *)pGPIOReg;
}
return TRUE;
}
//初始化
void IRS_port_init(void)
{
Set_PinFunction(g_pGPIOReg, GPH06_EXT_INT_6);
Set_PinPullUD(g_pGPIOReg, GPH06_EXT_INT_6, sgip_PULL_UP);
}
//使能引腳中斷
void IRS_enable_interrupt(void)
{
Unmask_EXTINT(g_pGPIOReg, EXT_INT_6);
}
//禁止引腳中斷
void IRS_disable_interrupt(void)
{
Mask_EXTINT(g_pGPIOReg, EXT_INT_6);
}
//清除引腳中斷
void IRS_clear_interrupt_pending(void)
{
Clear_EXTINT(g_pGPIOReg, EXT_INT_6);
}
//設(shè)置中斷方式
BOOL IRS_set_interrupt_method(EINT_SIGNAL_METHOD eMethod)
{
BOOL Ret = TRUE;
switch(eMethod)
{
case EINT_SIGNAL_LOW_LEVEL:
Set_EXTINT_TRLVL(g_pGPIOReg, EXT_INT_6, sgip_LOW_LEVEL);
break;
case EINT_SIGNAL_HIGH_LEVEL:
Set_EXTINT_TRLVL(g_pGPIOReg, EXT_INT_6, sgip_HIGH_LEVEL);
break;
case EINT_SIGNAL_FALL_EDGE:
Set_EXTINT_TRLVL(g_pGPIOReg, EXT_INT_6, sgip_FALLING_EDGE);
break;
case EINT_SIGNAL_RISE_EDGE:
Set_EXTINT_TRLVL(g_pGPIOReg, EXT_INT_6, sgip_RISING_EDGE);
break;
case EINT_SIGNAL_BOTH_EDGE:
Set_EXTINT_TRLVL(g_pGPIOReg, EXT_INT_6, sgip_BOTH_EDGE);
break;
default:
Ret = FALSE;
break;
}
return Ret;
}
//設(shè)置中斷filter方式
BOOL IRS_set_filter_method(EINT_FILTER_METHOD eMethod, unsigned int uiFilterWidth)
{
BOOL Ret =TRUE;
switch(eMethod)
{
case EINT_FILTER_DISABLE:
Clr_EXTINT_FILTER(g_pGPIOReg, EXT_INT_6);
break;
case EINT_FILTER_DELAY:
Set_EXTINT_FILTER(g_pGPIOReg, EXT_INT_6, sgip_DELAY_FLT, 0);
break;
case EINT_FILTER_DIGITAL:
Set_EXTINT_FILTER(g_pGPIOReg, EXT_INT_6, sgip_DIGITAL_FLT, uiFilterWidth);
break;
default:
Ret = FALSE;
break;
}
return Ret;
}
//判斷遙控接收引腳低電平，返回true
BOOL IRS_date(void)
{
if(Get_PinData(g_pGPIOReg,GPH06_EXT_INT_6))
{
return FALSE; // Low Active Switch (Pull-up switch)
}
else
{
return TRUE;
}
}
static BOOL AllocResources(void)
{
DWORD dwIRQ;
PHYSICAL_ADDRESS ioPhysicalBase = {0,0};
//------------------
// GPIO Controller SFR
//------------------
ioPhysicalBase.LowPart = BASE_REG_PA_GPIO;
g_pGPIOReg = (GPIO_REG *)MmMapIoSpace(ioPhysicalBase, sizeof(GPIO_REG), FALSE);
if (g_pGPIOReg == NULL)
{
return FALSE;
}
dwIRQ = IRQ_EINT6;
g_dwSysIntrHS38 = SYSINTR_UNDEFINED;
g_hEventHS38 = NULL;
if (!KernelIoControl(IOCTL_HAL_REQUEST_SYSINTR, &dwIRQ, sizeof(DWORD), &g_dwSysIntrHS38, sizeof(DWORD), NULL))
{
g_dwSysIntrHS38 = SYSINTR_UNDEFINED;
return FALSE;
}
g_hEventHS38 = CreateEvent(NULL, FALSE, FALSE, NULL);
if(NULL == g_hEventHS38)
{
return FALSE;
}
if (!(InterruptInitialize(g_dwSysIntrHS38, g_hEventHS38, 0, 0)))
{
return FALSE;
}
return TRUE;
}
static void ReleaseResources(void)
{
if (g_pGPIOReg != NULL)
{
MmUnmapIoSpace((PVOID)g_pGPIOReg, sizeof(GPIO_REG));
g_pGPIOReg = NULL;
}
if (g_dwSysIntrHS38 != SYSINTR_UNDEFINED)
{
InterruptDisable(g_dwSysIntrHS38);
}
if (g_hEventHS38 != NULL)
{
CloseHandle(g_hEventHS38);
}
if (g_dwSysIntrHS38 != SYSINTR_UNDEFINED)
{
KernelIoControl(IOCTL_HAL_RELEASE_SYSINTR, &g_dwSysIntrHS38, sizeof(DWORD), NULL, 0, NULL);
}
g_pGPIOReg = NULL;
g_dwSysIntrHS38 = SYSINTR_UNDEFINED;
g_hEventHS38 = NULL;
}
static void InitInterrupt(void)
{
// 禁止中斷
IRS_disable_interrupt();
// I初始化端口
IRS_port_init();
// 設(shè)置中斷模式
IRS_set_interrupt_method(EINT_SIGNAL_BOTH_EDGE);
IRS_set_filter_method(EINT_FILTER_DELAY, 0);
// 清除中斷標(biāo)志位
IRS_clear_interrupt_pending();
// 使能中斷
IRS_enable_interrupt();
}
BOOL WINAPI
DllEntry(HANDLE hinstDLL,
DWORD dwReason,
LPVOID /* lpvReserved */)
{
switch(dwReason)
{
case DLL_PROCESS_ATTACH:
DEBUGREGISTER((HINSTANCE)hinstDLL);
return TRUE;
case DLL_THREAD_ATTACH:
break;
case DLL_THREAD_DETACH:
break;
case DLL_PROCESS_DETACH:
break;
#ifdef UNDER_CE
case DLL_PROCESS_EXITING:
break;
case DLL_SYSTEM_STARTED:
break;
#endif
}
return TRUE;
}
BOOL IRS_Deinit(DWORD hDeviceContext)
{
g_bExitThread = TRUE;
if (g_hThreadHS38) // Make Sure if thread is exist
{
IRS_disable_interrupt();
IRS_clear_interrupt_pending();
// Signal Thread to Finish
SetEvent(g_hEventHS38);
// Wait for Thread to Finish
WaitForSingleObject(g_hThreadHS38, INFINITE);
CloseHandle(g_hThreadHS38);
g_hThreadHS38 = NULL;
}
ReleaseResources();
//RETAILMSG(1,(TEXT("USERLED: IRS_Deinit\r\n")));
return TRUE;
}
DWORD IRS_Init(DWORD dwContext)
{
RETAILMSG(1,(TEXT("Key_Gpio_Setting----\r\n")));
if (AllocResources() == FALSE)
{
goto CleanUp;
}
HS38_initialize_register_address((void *)g_pGPIOReg);
InitInterrupt();
g_hThreadHS38 = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE) HS38Thread, NULL, 0, NULL);
if (g_hThreadHS38 == NULL )
{
goto CleanUp;
}
return TRUE;
CleanUp:
IRS_Deinit(0);
return FALSE;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
BOOL IRS_IOControl(DWORD hOpenContext,
DWORD dwCode,
PBYTE pBufIn,
DWORD dwLenIn,
PBYTE pBufOut,
DWORD dwLenOut,
PDWORD pdwActualOut)
{
return TRUE;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
DWORD IRS_Open(DWORD hDeviceContext, DWORD AccessCode, DWORD ShareMode)
{
RETAILMSG(0,(TEXT("USERLED: IRS_Open\r\n")));
return TRUE;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
BOOL IRS_Close(DWORD hOpenContext)
{
RETAILMSG(0,(TEXT("USERLED: IRS_Close\r\n")));
return TRUE;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
void IRS_PowerDown(DWORD hDeviceContext)
{
RETAILMSG(0,(TEXT("USERLED: IRS_PowerDown\r\n")));
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
void IRS_PowerUp(DWORD hDeviceContext)
{
RETAILMSG(0,(TEXT("USERLED: IRS_PowerUp\r\n")));
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
DWORD IRS_Read(DWORD hOpenContext, LPVOID pBuffer, DWORD Count)
{
RETAILMSG(0,(TEXT("USERLED: IRS_Read\r\n")));
return TRUE;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
DWORD IRS_Seek(DWORD hOpenContext, long Amount, DWORD Type)
{
RETAILMSG(0,(TEXT("USERLED: IRS_Seek\r\n")));
return 0;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
DWORD IRS_Write(DWORD hOpenContext, LPCVOID pSourceBytes, DWORD NumberOfBytes)
{
RETAILMSG(0,(TEXT("USERLED: IRS_Write\r\n")));
return 0;
}

復(fù)制代碼

6.實(shí)驗(yàn)結(jié)果，當(dāng)你按下遙控器上的按鍵時(shí)，dnw或超級(jí)終端上會(huì)顯示相應(yīng)的按鍵碼如下：

長(zhǎng)時(shí)間按某一個(gè)按鍵，會(huì)顯示同一個(gè)鍵值如下：

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