void lsi53c810_device::dmaop_interrupt()
{
if(dcmd & 0x100000) {
fatalerror("LSI53C810: INTFLY opcode not implemented\n");
}
dsps = FETCH();
istat |= 0x1; /* DMA interrupt pending */
dstat |= 0x4; /* SIR (SCRIPTS Interrupt Instruction Received) */
if(irq_callback != NULL) {
irq_callback(machine(), 1);
}
dma_icount = 0;
halted = 1;
}
void Serial_stm32::irq_handler(void)
{
uint8_t data = 0;
// Check if we were called because of RXNE
if (((USART_CR1(config_.device) & USART_CR1_RXNEIE) != 0) &&
((USART_SR(config_.device) & USART_SR_RXNE) != 0))
{
// Retrieve the data from the peripheral
data = usart_recv(config_.device);
rx_buffer_.put_lossy(data);
// Enable transmit interrupt so it sends back the data
usart_enable_tx_interrupt(config_.device);
}
// Check if we were called because of TXE
if (((USART_CR1(config_.device) & USART_CR1_TXEIE) != 0) &&
((USART_SR(config_.device) & USART_SR_TXE) != 0))
{
if (tx_buffer_.readable() > 0)
{
// Get data from output buffer
tx_buffer_.get(data);
// Put data into the transmit register
usart_send(config_.device, data);
}
else
{
// Disable the TXE interrupt as we don't need it anymore
usart_disable_tx_interrupt(config_.device);
}
}
// Call callback function if attached
if (irq_callback != 0)
{
irq_callback(this);
}
}