2通过Kn控制LEDn(中断)说明文档

功能描述按下Kn的时候LEDn亮（n1..4） 一、 驱动程序（KeyLed.cpp） include windows.h //include ceddk.h include nkintr.h //include oalintr.h include pm.h include pmplat.h include Pkfuncs.h include s2440.h volatile IOPreg *s2440IOP IOPreg *IOP_BASE; volatile INTreg*s2440INT INTreg *INT_BASE; HANDLE KeyThread; HANDLE KeyEvent; UINT32 g_KeySysIntr[4]; void Virtual_Alloc;// Virtual allocation DWORD UserKeyProcessThreadvoid; const TCHAR szevtUser[] LFriendlyARM/ButtonEvent; DWORD UserKeyProcessThreadvoid { DWORD IRQ; // 创建一个事务 KeyEvent CreateEventNULL,FALSE,FALSE,NULL; if KeyEvent { RETAILMSG1,TEXTERRORKELFailed to create event.\r\n; return FALSE; } // 将物理中断号转换为逻辑中断号 // IRQ 物理中断号；g_KeySysIntr逻辑中断号 IRQ 36; if KernelIoControlIOCTL_HAL_REQUEST_SYSINTR,IRQ,sizeofUINT32,g_KeySysIntr[0],sizeofUINT32,NULL { RETAILMSG1,TEXTERRORKEL Failed to request sysintr value.\r\n; return FALSE; } IRQ 39; if KernelIoControlIOCTL_HAL_REQUEST_SYSINTR,IRQ,sizeofUINT32,g_KeySysIntr[1],sizeofUINT32,NULL { RETAILMSG1,TEXTERRORKEL Failed to request sysintr value.\r\n; return FALSE; } IRQ 41; if KernelIoControlIOCTL_HAL_REQUEST_SYSINTR,IRQ,sizeofUINT32,g_KeySysIntr[2],sizeofUINT32,NULL { RETAILMSG1,TEXTERRORKEL Failed to request sysintr value.\r\n; return FALSE; } IRQ 42; if KernelIoControlIOCTL_HAL_REQUEST_SYSINTR,IRQ,sizeofUINT32,g_KeySysIntr[3],sizeofUINT32,NULL { RETAILMSG1,TEXTERRORKEL Failed to request sysintr value.\r\n; return FALSE; } // 通知系统使能这个中断g_KeySysIntr,并且当这个中断产生时产生一个事务、 if InterruptInitializeg_KeySysIntr[0],KeyEvent,NULL,0 { RETAILMSG1,TEXTFail to initialize key interrupt event\r\n; return FALSE; } if InterruptInitializeg_KeySysIntr[1],KeyEvent,NULL,0 { RETAILMSG1,TEXTFail to initialize key interrupt event\r\n; return FALSE; } if InterruptInitializeg_KeySysIntr[2],KeyEvent,NULL,0 { RETAILMSG1,TEXTFail to initialize key interrupt event\r\n; return FALSE; } if InterruptInitializeg_KeySysIntr[3],KeyEvent,NULL,0 { RETAILMSG1,TEXTFail to initialize key interrupt event\r\n; return FALSE; } while1 { // 等待中断发生 WaitForSingleObjectKeyEvent,INFINITE; const char nIndex[] { 0, 3, 5, 6}; const char nIndex2[] { 5, 6, 7, 8}; // 扫描Kn1..4的状态并赋给LEDn1..4 for int i0;i4;i { if s2440IOP-rGPGDAT 0 x01 nIndex[i] { s2440IOP-rGPBDAT s2440IOP-rGPBDAT | 0 x01 nIndex2[i]; } else { s2440IOP-rGPBDAT s2440IOP-rGPBDAT 0 x01 nIndex2[i]; } } // 已经完成中断的处理，重新开启该中断 // K1 ifs2440IOP-rEINTMASK DWORD0 x18 { InterruptDoneg_KeySysIntr[0]; } //EINT11 - K2 ifs2440IOP-rEINTMASK