static void onRecv(YM2148* midi, UInt32 time)
{
midi->timeRecv = 0;
if (midi->status & STAT_RXRDY) {
midi->status |= STAT_OE;
if (midi->command & CMD_RSTER) {
ym2148Reset(midi);
return;
}
}
if (midi->rxPending != 0) {
archSemaphoreWait(midi->semaphore, -1);
midi->rxData = midi->rxQueue[(midi->rxHead - midi->rxPending) & (RX_QUEUE_SIZE - 1)];
midi->rxPending--;
archSemaphoreSignal(midi->semaphore);
midi->status |= STAT_RXRDY;
if (midi->command & CMD_RDINT) {
boardSetDataBus(midi->vector, 0, 0);
boardSetInt(0x800);
midi->status |= ST_INT;
}
}
midi->timeRecv = boardSystemTime() + midi->charTime;
boardTimerAdd(midi->timerRecv, midi->timeRecv);
}
static void midiInCallback(PhilipsMidi* midi, UInt8* buffer, UInt32 length)
{
archSemaphoreWait(midi->semaphore, -1);
if (midi->rxPending + length < RX_QUEUE_SIZE) {
while (length--) {
midi->rxQueue[midi->rxHead & (RX_QUEUE_SIZE - 1)] = *buffer++;
midi->rxHead++;
midi->rxPending++;
}
}
archSemaphoreSignal(midi->semaphore);
}
static void onRecv(PhilipsMidi* midi, UInt32 time)
{
midi->timeRecv = 0;
if (midi->status & STAT_RXRDY) {
midi->status |= STAT_OE;
}
else if (midi->rxPending != 0) {
archSemaphoreWait(midi->semaphore, -1);
midi->rxData = midi->rxQueue[(midi->rxHead - midi->rxPending) & (RX_QUEUE_SIZE - 1)];
midi->rxPending--;
archSemaphoreSignal(midi->semaphore);
midi->status |= STAT_RXRDY;
if (midi->command & CMD_RDINT) {
boardSetInt(0x400);
midi->status |= ST_INT;
}
}
midi->timeRecv = boardSystemTime() + midi->charTime;
boardTimerAdd(midi->timerRecv, midi->timeRecv);
}
