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Update NE2000 IRQ status on writes to IMR. Fixes problems with RTL8029 when level-sensitive IRQs are in use.

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This commit is contained in:
SarahW 2018-04-02 21:07:57 +01:00
commit cb60383e55
1 changed files with 17 additions and 6 deletions
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23
src/ne2000.c
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@ -1154,13 +1154,24 @@ void ne2000_write(uint16_t address, uint8_t value, void *p)
ne2000->IMR.overw_inte = ((value & 0x10) == 0x10);
ne2000->IMR.cofl_inte = ((value & 0x20) == 0x20);
ne2000->IMR.rdma_inte = ((value & 0x40) == 0x40);
if (ne2000->ISR.pkt_tx && ne2000->IMR.tx_inte)
{
#ifdef NE2000_DEBUG
pclog("tx irq retrigger\n");
#endif
value = ((ne2000->ISR.rdma_done << 6) |
(ne2000->ISR.cnt_oflow << 5) |
(ne2000->ISR.overwrite << 4) |
(ne2000->ISR.tx_err << 3) |
(ne2000->ISR.rx_err << 2) |
(ne2000->ISR.pkt_tx << 1) |
(ne2000->ISR.pkt_rx));
value &= ((ne2000->IMR.rdma_inte << 6) |
(ne2000->IMR.cofl_inte << 5) |
(ne2000->IMR.overw_inte << 4) |
(ne2000->IMR.txerr_inte << 3) |
(ne2000->IMR.rxerr_inte << 2) |
(ne2000->IMR.tx_inte << 1) |
(ne2000->IMR.rx_inte));
if (value)
ne2000_raise_irq(ne2000);
}
else
ne2000_lower_irq(ne2000);
break;
}
break;