/**
* @brief Initialize the CBUS hardware for the current instance.
*
* @return Status
* @retval true Success
* @retval false Failure
*
* @note: Requires that SiiDrvCbusInstanceSet() is called prior to this call
*
*****************************************************************************/
bool_t SiiDrvCbusInitialize ( void )
{
uint_t index;
SiiRegModify(RX_A__SWRST2, RX_M__SWRST2__CBUS_SRST, SET_BITS);
SiiRegModify(RX_A__SWRST2, RX_M__SWRST2__CBUS_SRST, CLEAR_BITS);
memset( pDrvCbus, 0, sizeof( CbusDrvInstanceData_t ));
// Setup local DEVCAP registers for read by the peer
for ( index = 0; index < (sizeof( cbusInitCbusRegsList) / 2); index += 2 )
{
SiiRegWrite( cbusInitCbusRegsList[ index], cbusInitCbusRegsList[ index + 1] );
}
// Audio link mode update by switch status
if ( SiiSpdifEnableGet() || !SiiTdmEnableGet() )
{
SiiRegWrite(REG_CBUS_DEVICE_CAP_6, MHL_AUD_LINK_MODE_2CH);
}
// Enable the VS commands, all interrupts, and clear legacy
SiiRegWrite( REG_CBUS_INTR_0_MASK, 0xFF ); // Enable desired interrupts
SiiRegWrite( REG_CBUS_INTR_1_MASK, 0xCC ); // Enable desired interrupts
SiiRegWrite( RX_CBUS_CH_RST_CTRL, 0x00 ); // MHL: Tri-state CBUS
#ifdef MHAWB_SUPPORT
SiiDrvHawbEnable(false);
#endif
return( true );
}
//------------------------------------------------------------------------------
// Function: SiiCbusAbortTimerStart
//------------------------------------------------------------------------------
void SiiCbusAbortTimerStart (void)
{
#ifdef MHAWB_SUPPORT
SiiDrvHawbEnable(false); //Disable HAWB when receive abort.
#endif
SiiOsTimerStart(pCbus->chState.abortTimer, CBUS_ABORT_TIMER);
SiiCbusAbortStateSet(true);
}
static int_t CBusSendNextInQueue (void)
{
int_t result = SUCCESS;
if (SiiCbusAbortStateGet())
{
return( SUCCESS );
}
if ( ( pCbus->chState.request[ CH_ACTIVE_INDEX].reqStatus != CBUS_REQ_PENDING ) )
{
#ifdef MHAWB_SUPPORT
if (pCbus->chState.connected && (!pCbus->chState.burstWaitState))
{
if (pCbus->chState.remote_dcap[0x0A] & MHL_FEATURE_SP_SUPPORT)
SiiDrvHawbEnable(true); //There's no pending CBUS message need to send out, take HAWB ON
}
#endif
return( SUCCESS );
}
#ifdef MHAWB_SUPPORT
if (SiiDrvHawbEnable(false))
#endif
{
// Found a pending message, send it out
if ( SiiDrvInternalCBusWriteCommand( &pCbus->chState.request[ CH_ACTIVE_INDEX] ))
{
pCbus->chState.state = CBUS_SENT;
pCbus->chState.request[ CH_ACTIVE_INDEX].reqStatus = CBUS_REQ_SENT;
}
else
{
result = ERROR_WRITE_FAILED;
}
}
return( result );
}