void GenerateInterrupt(void)
{
/*
* Generate 1 interrupt on the master controller
* (how do devices normally 'detect' the hardware? and
* how can this VDD find a spare interrupt to 'install'
* the device?).
*/
if (/*InterruptAcknowleged*/TRUE) {
/*
* Set to FALSE FIRST to avoid race conditions
*/
InterruptAcknowleged = FALSE;
dprintf2(("Generating interrupt"));
VDDSimulateInterrupt(ICA_MASTER, SB_INTERRUPT, 1);
} else {
dprintf1(("Missed interrupt !"));
}
/*
* Set the status to see if more apps will work
*/
WriteStatus = 0xFF;
}
void _cdecl interrupt_thread(void *arg)
{
while(1) {
if(WaitForSingleObject(interrupt_event,INFINITE)!=WAIT_OBJECT_0)
break;
if((uart_ier_reg&pending_interrupts) != 0) {
lprintf(LOG_DEBUG,"VDDSimulateInterrupt (pending: %02X) - IER: %02X"
,pending_interrupts, uart_ier_reg);
VDDSimulateInterrupt(ICA_MASTER, uart_irq, /* count: */1);
}
#if 0
/* "Real 16550s should always reassert
* this interrupt whenever the transmitter is idle and
* the interrupt is enabled."
*/
if(pending_interrupts==0 && uart_ier_reg&UART_IER_TX_EMPTY)
pending_interrupts|=UART_IER_TX_EMPTY;
#endif
}
}
