HRESULT i2cInitialize(void)
{
HRESULT hResult = NO_ERROR;
//enabel trace to debug the startup.
//sysTraceStart(0);
MPTR(IC_INTR_MASK) = 0; //disable all i2c interrupt
MPTR(IC_RX_TL) = 0; //rx threshhold to 1, to correct error in the databook
hResult = TCSemaphoreOpenIRQ(&i2cBufSemId, 1);
if (hResult != NO_ERROR)
return hResult;
hResult = TCSemaphoreOpenIRQ(&i2cCompleteSemId, 0);
if (hResult != NO_ERROR)
return hResult;
TCInterruptInstallHandler(CYGNUM_HAL_INTERRUPT_I2C, NULL, i2cIntDsr);
i2cSetup(I2C_7_BIT_ADDR, I2C_STANDARD_SPEED);
#ifdef _CLI
hResult += i2cInstallCLITools();
#endif
return hResult;
}
/*********************************************************
Create semaphores for this module
*/
HRESULT avsIntCreateSemaphores(void)
{
HRESULT hResult = NO_ERROR;
// transmit request packet done
hResult = TCSemaphoreOpenIRQ(&avsIntSemID, 0);
if (hResult != NO_ERROR) return hResult;
return hResult;
}
