// The DiceDriver module needs to be able to tell us what is happening. The most
// important information is the request for a change of clock rate or source.
// The eDDR_MSG_CLOCK_CHG is the only one we are required to handle.
// The other messages are used to show the connection status on some LED's,
// and those are of course application dependent.
static HRESULT myDiceDriverCallBack (DICE_DRIVER_MSG_ENUM msg, DICE_DRIVER_CB_DATA * pData)
{
// why did the driver call us?
switch (msg)
{
case eDDR_MSG_CLOCK_CHG:
// The computer has requested a change of clock and source
//SYS_TRACE1(SYSDEBUG_TRACE_GENERAL, pData->rate);
myAppChangeSR(pData);
break;
case eDDR_MSG_ATTACH:
// The computer attached itself to this device
// this typically happens after the computer boots, but also after
// bus resets or the first time the driver is installed
// In this application we don't care
//SYS_TRACE1(SYSDEBUG_TRACE_GENERAL, 0);
break;
case eDDR_MSG_DETACH:
// The computer detached itself from this device
// this typically happens when the computer shuts down
// or at a bus reset.
// In this application we don't care
//SYS_TRACE1(SYSDEBUG_TRACE_GENERAL, 0);
break;
case eDDR_MSG_ENABLE:
// The computer has enabled streaming
//SYS_TRACE1(SYSDEBUG_TRACE_GENERAL, 0);
driverAttached = true;
updateStatusLEDs();
break;
case eDDR_MSG_DISABLE:
// The computer has disabled streaming
//SYS_TRACE1(SYSDEBUG_TRACE_GENERAL, 0);
driverAttached = false;
updateStatusLEDs();
break;
case eDDR_MSG_AC3_CHG:
//AC3 flags for one of the transmitter or receiver has changed
sysDebugPrintf("AC3 Enable Change\r\n");
sysDebugPrintf("Stream0: 0x%04x\r\nStream1: 0x%04x\r\n", diceDriverGetState()->RxParameters.IsocReceiver[0].AC3Enable,
diceDriverGetState()->RxParameters.IsocReceiver[1].AC3Enable);
break;
}
return NO_ERROR;
}
HRESULT myAvcDriverCallBack (AVC_DRIVER_MSG_ENUM msg, AVC_DRIVER_CB_DATA * pData)
{
uint32 notify;
// why did the driver call us?
switch (msg)
{
case eAVCDR_MSG_CLOCK_CHG:
// The computer has requested a change of clock and source. We
// should honour that by issuing a call to "dal"
//Check if DAL needs to be changed
notify = myAppChangeSR(pData);
//Change the Clock Now
dalSetClockSource (eDAL_INTERFACE_1, pData->source, pData->rate);
break;
case eAVCDR_MSG_ATTACH:
// The computer attached itself to this device
// this typically happens after the computer boots, but also after
// bus resets or the first time the driver is installed
// In this application we don't care
LED_ON(DRIVER_ATCH_LED_ID);
break;
case eAVCDR_MSG_DETACH:
// The computer detached itself from this device
// this typically happens when the computer shuts down
// or at a bus reset.
// In this application we don't care
LED_OFF(DRIVER_ATCH_LED_ID);
break;
case eAVCDR_MSG_ENABLE:
// The computer has enabled streaming
LED_ON(DRIVER_EN_LED_ID);
break;
case eAVCDR_MSG_DISABLE:
// The computer has disabled streaming
LED_OFF(DRIVER_EN_LED_ID);
break;
}
return NO_ERROR;
}
