GPIO驱动程序及测试程序

1、GPIO驱动程序，主要是GIO_Control：BOOL GIO_IOControl(DWORD hOpenContext,   DWORD dwCode,   PBYTE pBufIn,   DWORD dwLenIn,   PBYTE pBufOut,   DWORD dwLenOut,   PDWORD pdwActualOut)switch(dwCode)case IO_CTL_GPIO_A_CON:         

2、v_pIOPregs->GPACON= *(DWORD*)pBufIn;/GPACON SETbreak;    case IO_CTL_GPIO_A_DAT_OUTPUT:v_pIOPregs->GPADAT= *(DWORD*)pBufIn;  /GPADAT SET (OUTPUT) also for Functional Pinbreak;    case IO_CTL_GPIO_B_CON:         v_pIOPregs->GPBCON= *(DWORD*)p

3、BufIn;/GPBCON SETbreak;case IO_CTL_GPIO_B_DAT_INPUT:         *(DWORD*)pBufOut=v_pIOPregs->GPBDAT; /GPBDAT SET (INPUT) also for Functional Pinbreak;    case IO_CTL_GPIO_B_DAT_OUTPUT:v_pIOPregs->GPBDAT= *(DWORD*)pBufIn;  /GPBDAT SET (OUTPUT) also for Funct

4、ional Pinbreak;case IO_CTL_GPIO_B_UP: v_pIOPregs->GPBUP= *(DWORD*)pBufIn;/GPBUP SETbreak;     case IO_CTL_GPIO_C_CON:         v_pIOPregs->GPCCON= *(DWORD*)pBufIn;/GPCCON SETbreak;case IO_CTL_GPIO_C_DAT_INPUT:         *(DWORD

5、*)pBufOut=v_pIOPregs->GPCDAT; /GPCDAT SET (INPUT) also for Functional Pinbreak;    case IO_CTL_GPIO_C_DAT_OUTPUT:v_pIOPregs->GPCDAT= *(DWORD*)pBufIn;  /GPCDAT SET (OUTPUT) also for Functional Pinbreak;case IO_CTL_GPIO_C_UP: v_pIOPregs->GPCUP= *(DWORD*)pBufIn;/GPCUP SETbr

6、eak;    case IO_CTL_GPIO_D_CON:         v_pIOPregs->GPDCON= *(DWORD*)pBufIn;/GPDCON SETbreak;case IO_CTL_GPIO_D_DAT_INPUT:         *(DWORD*)pBufOut=v_pIOPregs->GPDDAT; /GPDDAT SET (INPUT) also for Functional Pinbreak;    cas

7、e IO_CTL_GPIO_D_DAT_OUTPUT:v_pIOPregs->GPDDAT= *(DWORD*)pBufIn;  /GPDDAT SET (OUTPUT) also for Functional Pinbreak;case IO_CTL_GPIO_D_UP: v_pIOPregs->GPDUP= *(DWORD*)pBufIn;/GPDUP SETbreak;    case IO_CTL_GPIO_E_CON:         v_pIOPregs->GPECON= *

8、(DWORD*)pBufIn;/GPECON SETbreak;case IO_CTL_GPIO_E_DAT_INPUT:         *(DWORD*)pBufOut=v_pIOPregs->GPEDAT; /GPEDAT SET (INPUT) also for Functional Pinbreak;    case IO_CTL_GPIO_E_DAT_OUTPUT:v_pIOPregs->GPEDAT= *(DWORD*)pBufIn;  /GPEDAT SET (OUTPUT) also

9、for Functional Pinbreak;case IO_CTL_GPIO_E_UP: v_pIOPregs->GPEUP= *(DWORD*)pBufIn;/GPEUP SETbreak;case IO_CTL_GPIO_F_CON:         v_pIOPregs->GPFCON= *(DWORD*)pBufIn;/GPFCON SETbreak;case IO_CTL_GPIO_F_DAT_INPUT:         *(DWORD*)pBufOut=v

10、_pIOPregs->GPFDAT; /GPFDAT SET (INPUT) also for Functional Pinbreak;    case IO_CTL_GPIO_F_DAT_OUTPUT:v_pIOPregs->GPFDAT= *(DWORD*)pBufIn;  /GPFDAT SET (OUTPUT) also for Functional Pinbreak;case IO_CTL_GPIO_F_UP: v_pIOPregs->GPFUP= *(DWORD*)pBufIn;/GPFUP SETbreak; 

11、  case IO_CTL_GPIO_G_CON:          v_pIOPregs->GPGCON= *(DWORD*)pBufIn;/GPGCON SETbreak;case IO_CTL_GPIO_G_DAT_INPUT:         *(DWORD*)pBufOut=v_pIOPregs->GPGDAT; /GPGDAT SET (INPUT) also for Functional Pinbreak;    case IO_CTL_G

12、PIO_G_DAT_OUTPUT:v_pIOPregs->GPGDAT= *(DWORD*)pBufIn;  /GPGDAT SET (OUTPUT) also for Functional Pinbreak;case IO_CTL_GPIO_G_UP: v_pIOPregs->GPGUP= *(DWORD*)pBufIn;/GPGUP SETbreak;        case IO_CTL_GPIO_H_CON:          v_pIOPregs->

13、;GPHCON= *(DWORD*)pBufIn;/GPHCON SETbreak;case IO_CTL_GPIO_H_DAT_INPUT:         *(DWORD*)pBufOut=v_pIOPregs->GPHDAT; /GPHDAT SET (INPUT) also for Functional Pinbreak;    case IO_CTL_GPIO_H_DAT_OUTPUT:v_pIOPregs->GPHDAT= *(DWORD*)pBufIn;  /GPHDAT SET (OUT

14、PUT) also for Functional Pinbreak;case IO_CTL_GPIO_H_UP: v_pIOPregs->GPHUP= *(DWORD*)pBufIn;/GPHUP SETbreak;    case IO_CTL_GPIO_J_CON:          v_pIOPregs->GPJCON= *(DWORD*)pBufIn;/GPJCON SETbreak;case IO_CTL_GPIO_J_DAT_INPUT:       

15、  *(DWORD*)pBufOut=v_pIOPregs->GPJDAT; /GPJDAT SET (INPUT) also for Functional Pinbreak;    case IO_CTL_GPIO_J_DAT_OUTPUT:v_pIOPregs->GPJDAT= *(DWORD*)pBufIn;  /GPJDAT SET (OUTPUT) also for Functional Pinbreak;case IO_CTL_GPIO_J_UP: v_pIOPregs->GPJUP= *(DWORD*)pBufI

16、n;/GPJUP SETbreak;    default:break;    RETAILMSG(0,(TEXT("GPIO_Control:Ioctl code = 0x%xrn"), dwCode);return TRUE; 测试程序，封装了2个输入输出GPIO函数，调用十分方便:#include "stdafx.h"#include "Relay2.h"#include "Relay2Dlg.h"#include "GPIO_D

17、river.h"#ifdef _DEBUG#define new DEBUG_NEW#endif  DWORD RData,BUFCON,BUFOUT,BUFIN; struct GPIO               DWORD GPIOCON;         DWORD GPIOIN;DWORD GPIOOUT;        struct GPIO  GPA=g

18、pacon,NULL,gpaout ,         GPB=gpbcon,gpbin,gpbout , GPC=gpccon,gpcin,gpcout , GPD=gpdcon,gpdin,gpdout , GPE=gpecon,gpein,gpeout ,         GPF=gpfcon,gpfin,gpfout , GPG=gpgcon,gpgin,gpgout , GPH=gphcon,gphin,gphout , GP

19、J=gpjcon,gpjin,gpjout ;      /define and choose GPIO        / CRelay2Dlg 对话框CRelay2Dlg:CRelay2Dlg(CWnd* pParent /*=NULL*/): CDialog(CRelay2Dlg:IDD, pParent)m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);void CRelay2Dlg:DoDataExchange(CDataExchange* pDX)CDia

20、log:DoDataExchange(pDX);BEGIN_MESSAGE_MAP(CRelay2Dlg, CDialog)#if defined(_DEVICE_RESOLUTION_AWARE) && !defined(WIN32_PLATFORM_WFSP)ON_WM_SIZE()#endif/AFX_MSG_MAPON_BN_CLICKED(IDC_BUTTON1, &CRelay2Dlg:OnBnClickedButton1)ON_BN_CLICKED(IDC_BUTTON2, &CRelay2Dlg:OnBnClickedButton2)END_ME

21、SSAGE_MAP()/ CRelay2Dlg 消息处理程序BOOL CRelay2Dlg:OnInitDialog()CDialog:OnInitDialog();/ 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动/  执行此操作SetIcon(m_hIcon, TRUE);/ 设置大图标SetIcon(m_hIcon, FALSE);/ 设置小图标/ TODO: 在此添加额外的初始化代码gpiodriver=CreateFile(L"GIO1:",GENERIC_READ | GENERIC_WRITE, 0,NULL,OPEN_EXISTING

22、,0,NULL );/gpiodriver initif(!gpiodriver)MessageBox(L"打开GPIO设备失败！");return TRUE;  / 除非将焦点设置到控件，否则返回 TRUE#if defined(_DEVICE_RESOLUTION_AWARE) && !defined(WIN32_PLATFORM_WFSP)void CRelay2Dlg:OnSize(UINT /*nType*/, int /*cx*/, int /*cy*/)if (AfxIsDRAEnabled()DRA:RelayoutDialog(A

23、fxGetResourceHandle(), this->m_hWnd, DRA:GetDisplayMode() != DRA:Portrait ? MAKEINTRESOURCE(IDD_RELAY2_DIALOG_WIDE) : MAKEINTRESOURCE(IDD_RELAY2_DIALOG);#endif DWORD CRelay2Dlg:GPIOINPUT(DWORD GPIOCON,DWORD GPIOIN,DWORD BUFCON,DWORD BUFOUT )   /the function is used f

24、or GPIO INPUT   DWORD RData;    DeviceIoControl(gpiodriver,GPIOCON,&BUFCON,4,NULL,0,NULL,NULL);     DeviceIoControl(gpiodriver,GPIOIN,NULL,0,&BUFOUT,4,NULL,NULL); memcpy(&RData,&BUFOUT,4);return RData; DWORD  CRelay2Dlg:GPIOINPUT1(struct G

25、PIO GP,USHORT NUM )      /the function is used for GPIO INPUT BETTER     BUFCON &=(3<<(2*NUM);    DeviceIoControl(gpiodriver,GP.GPIOCON,&BUFCON,4,NULL,0,NULL,NULL);     DeviceIoControl(gpiodriver,GP.GPIOIN,NULL,0,&BUFOUT,4

26、,NULL,NULL);     memcpy(&RData,&BUFOUT,4);return RData; VOID CRelay2Dlg:GPIOOUTPUT(DWORD GPIOCON,DWORD GPIOOUT,DWORD BUFCON,DWORD BUFIN )   /the function is used for GPIO OUTPUT        DeviceIoControl(gpiodriver,GPIOCON,&BUFCON,4,NULL,0,NULL,N

27、ULL);     DeviceIoControl(gpiodriver,GPIOOUT,&BUFIN,4,NULL,0,NULL,0); VOID CRelay2Dlg:GPIOOUTPUT1(struct GPIO GP,USHORT NUM,BYTE PINSTATE )   /the function is used for GPIO OUTPUT better        if(GP.GPIOIN!=NULL)  BUFCON=(BUFCON &(3<<(2*NUM)|(1<<(2*NUM);else       B