BOOL LED_Close(DWORD dwOpen)
{
PDRVCONTEXT pDrv = (PDRVCONTEXT)dwOpen;
RETAILMSG(RETAIL_ON, (DTAG TEXT("LED_Close++ dwContext: %x\r\n"), dwOpen));
// Verify that the context handle is valid
if(pDrv && (pDrv->dwSize != sizeof(DRVCONTEXT))){
return false;
}
UnMapRegister((void*)pDrv->pGpioRegs);
// Count the number of opens
InterlockedDecrement((long *)&pDrv->nNumOpens);
RETAILMSG(RETAIL_ON, (TEXT("LED_Close-- \r\n")));
return true;
}
/*----------------------------------------------------------------------
| main
+---------------------------------------------------------------------*/
int WINAPI WinMain(HINSTANCE hInstance, // handle to current instance
HINSTANCE hPrevInstance, // handle to previous instance
LPWSTR lpCmdLine, // pointer to command line
int nCmdShow) // show state of window
{
DWORD ProcID;
GPIOREG* pGPIORegs;
ProcID=getPROCID();
if(pGPIORegs=MapRegister(GPIO_BASE))
{
DWORD val;
if(ProcID==TYPE_PXA270)
pGPIORegs->gpdr1|=(1<<(35-32)); //Set GPIO35 as output
else if(ProcID==TYPE_PXA320)
pGPIORegs->gpdr2|=(1<<(95-64)); //Set GPIO95 as output
else if(ProcID==TYPE_PXA300)
pGPIORegs->gpdr3|=(1<<(97-96)); //Set GPIO97 as output
if(ProcID==TYPE_PXA270)
pGPIORegs->gpsr1=(1<<(35-32)); // Set GPIO35 HIGH
else if(ProcID==TYPE_PXA320)
pGPIORegs->gpsr2=(1<<(95-64)); // Set GPIO95 HIGH
else if(ProcID==TYPE_PXA300)
pGPIORegs->gpsr3=(1<<(97-96)); // Set GPIO97 HIGH
if(ProcID==TYPE_PXA270)
pGPIORegs->gpcr1=(1<<(35-32)); // Set GPIO35 LOW
else if(ProcID==TYPE_PXA320)
pGPIORegs->gpcr2=(1<<(95-64)); // Set GPIO95 LOW
else if(ProcID==TYPE_PXA300)
pGPIORegs->gpcr3=(1<<(97-96)); // Set GPIO97 LOW
if(ProcID==TYPE_PXA270)
pGPIORegs->gpdr1&=~(1<<(35-32)); // Set GPIO35 as input
else if(ProcID==TYPE_PXA320)
pGPIORegs->gpdr2&=~(1<<(95-64)); // Set GPIO95 as input
else if(ProcID==TYPE_PXA300)
pGPIORegs->gpdr3&=~(1<<(97-96)); // Set GPIO97 as input
if(ProcID==TYPE_PXA270)
val=pGPIORegs->gplr1&(1<<(35-32)); // Get GPIO35 level
else if(ProcID==TYPE_PXA320)
val=pGPIORegs->gplr2&(1<<(95-64)); // Get GPIO95 level
else if(ProcID==TYPE_PXA300)
val=pGPIORegs->gplr3&(1<<(97-96)); // Get GPIO97 level
UnMapRegister((void*)pGPIORegs);
}
// This code would do the same, but using our GPIOLibrary (code available for purchase)
/* {
DWORD gpio;
gpio=35;
if(ProcID==TYPE_PXA320) gpio=95;
else if(ProcID==TYPE_PXA300) gpio=97;
InitGPIOLib();
SetGPIODir(gpio, 1);
SetGPIOLevel(gpio,1);
SetGPIOLevel(gpio,0);
SetGPIODir(gpio, 1);
val=GetGPIODir(gpio);
DeInitGPIOLib();
} */
return(TRUE);
}