diff options
Diffstat (limited to 'hw/prep_pci.c')
| -rw-r--r-- | hw/prep_pci.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/hw/prep_pci.c b/hw/prep_pci.c index a31b74c80a..b5ff8eb0ff 100644 --- a/hw/prep_pci.c +++ b/hw/prep_pci.c @@ -117,11 +117,21 @@ static CPUReadMemoryFunc *PPC_PCIIO_read[] = { &PPC_PCIIO_readl, }; -static void prep_set_irq(PCIDevice *d, void *pic, int irq_num, int level) +/* Don't know if this matches real hardware, but it agrees with OHW. */ +static int prep_map_irq(PCIDevice *pci_dev, int irq_num) { - /* XXX: we do not simulate the hardware - we rely on the BIOS to - set correctly for irq line field */ - pic_set_irq(d->config[PCI_INTERRUPT_LINE], level); + return (irq_num + (pci_dev->devfn >> 3)) & 3; +} + +static int prep_irq_levels[4]; + +static void prep_set_irq(void *pic, int irq_num, int level) +{ + int pic_irq_num; + prep_irq_levels[irq_num] = level; + level |= prep_irq_levels[irq_num ^ 2]; + pic_irq_num = (irq_num == 0 || irq_num == 2) ? 9 : 11; + pic_set_irq(pic_irq_num, level); } PCIBus *pci_prep_init(void) @@ -131,7 +141,7 @@ PCIBus *pci_prep_init(void) int PPC_io_memory; s = qemu_mallocz(sizeof(PREPPCIState)); - s->bus = pci_register_bus(prep_set_irq, NULL, 0); + s->bus = pci_register_bus(prep_set_irq, prep_map_irq, NULL, 0); register_ioport_write(0xcf8, 4, 4, pci_prep_addr_writel, s); register_ioport_read(0xcf8, 4, 4, pci_prep_addr_readl, s); |