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PCI: And make it correctly handle all 4 PIRQ's and zero PIRQ (in which case, do nothing at all).

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OBattler
2024-05-24 11:05:27 +02:00
parent 8ced9eba65
commit b0dc74dbb8
1 changed files with 11 additions and 6 deletions
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17
src/pci.c
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@@ -204,15 +204,20 @@ pci_irq(uint8_t slot, uint8_t pci_int, int level, int set, uint8_t *irq_state)
} }
} }
break; break;
case (PCI_IIRQ_BASE | 0x00) ... (PCI_IIRQ_BASE | PCI_IIRQ_MAX): case (PCI_IIRQ_BASE | 0x00) ... (PCI_IIRQ_BASE | PCI_IIRQS_NUM):
/* PCI internal routing. */ /* PCI internal routing. */
slot = (slot - 1) & PCI_INT_PINS_MAX; if (slot > 0x00) {
slot = (slot - 1) & PCI_INT_PINS_MAX;
irq_line = pci_irqs[slot]; irq_line = pci_irqs[slot];
/* Ignore what was provided to us as a parameter and override it with whatever /* Ignore what was provided to us as a parameter and override it with whatever
the chipset is set to. */ the chipset is set to. */
level = !!pci_irq_level[slot]; level = !!pci_irq_level[slot];
} else {
irq_line = 0xff;
level = 0;
}
break; break;
case (PCI_MIRQ_BASE | 0x00) ... (PCI_MIRQ_BASE | PCI_MIRQ_MAX): case (PCI_MIRQ_BASE | 0x00) ... (PCI_MIRQ_BASE | PCI_MIRQ_MAX):
/* MIRQ */ /* MIRQ */