// This function handles the rate change request from the driver.
// If the rate mode has changed it will create a new DAL.
static HRESULT myAppChangeSR(DICE_DRIVER_CB_DATA * pData)
{
HRESULT hResult = NO_ERROR;
uint32 notify = 0;
DAL_RATE_MODE_ENUM driverRateMode;
driverRateMode = dalRateByID(pData->rate)->rateMode;
if (driverRateMode != lastDriverRatemode)
{
//Driver asked for a change of rate mode
lastDriverRatemode = driverRateMode;
myAppCreateDAL(driverRateMode);
// Send the RX and TX Configuration Notification as this might
// have resulted in a change of the Rx and Tx streams going
// to the computer. This will for example happen if the device
// has ADAT, when going from 48k to 96k ADAT will be reduced
// to 4 channels (SMUXII)
notify |= DD_NOTIFY_RX_CFG_CHG_BIT | DD_NOTIFY_TX_CFG_CHG_BIT;
}
//Change the Clock as instructed by driver, this could be a change
//in clock source, nominal rate or both.
dalSetClockSource (eDAL_INTERFACE_1, pData->source, pData->rate);
//Send the Clock Setting Accept Notification, this should always be send
notify |= DD_NOTIFY_CLOCK_ACP;
diceDriverNotifyHost(notify);
return hResult;
}
static HRESULT myAppChangeSR(DICE_DRIVER_CB_DATA * pData)
{
HRESULT hResult = NO_ERROR;
uint32 notify = 0;
if (dalRateByID (pData->rate)->rateMode != lastDriverRateMode)
{
lastDriverRateMode = dalRateByID (pData->rate)->rateMode;
dalCreateInterface(eDAL_INTERFACE_1, lastDriverRateMode, INPUT_DEVICES,OUTPUT_DEVICES);
eapDriverChangeRateMode (lastDriverRateMode);
dalStartInterface(eDAL_INTERFACE_1);
//Send the RX and TX Configuration Notification
notify |= DD_NOTIFY_RX_CFG_CHG_BIT | DD_NOTIFY_TX_CFG_CHG_BIT;
}
//Change the Clock Now
dalSetClockSource (eDAL_INTERFACE_1, pData->source, pData->rate);
//Send the Clock Setting Accept Notification
notify |= DD_NOTIFY_CLOCK_ACP;
diceDriverNotifyHost(notify);
return hResult;
}