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hw/usb/vt82c686-uhci-pci: Use ISA instead of PCI interrupts

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This device is part of a superio/ISA bridge chip and IRQs from it are
routed to an ISA interrupt set by the Interrupt Line PCI config
register. Implement this in a vt82c686-uhci-pci specific irq handler
Using via_isa_set_irq().

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <8d7ed385e33a847d8ddc669163a68b5ca57f82ce.1635161629.git.balaton@eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
This commit is contained in:
BALATON Zoltan 2021-10-25 13:33:49 +02:00 committed by Philippe Mathieu-Daudé
parent e4f5b93986
commit 4f3b0a4d75
1 changed files with 13 additions and 0 deletions
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13
hw/usb/vt82c686-uhci-pci.c
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@ -1,6 +1,17 @@
#include "qemu/osdep.h"
#include "hw/irq.h"
#include "hw/isa/vt82c686.h"
#include "hcd-uhci.h"
static void uhci_isa_set_irq(void *opaque, int irq_num, int level)
{
UHCIState *s = opaque;
uint8_t irq = pci_get_byte(s->dev.config + PCI_INTERRUPT_LINE);
if (irq > 0 && irq < 15) {
via_isa_set_irq(pci_get_function_0(&s->dev), irq, level);
}
}
static void usb_uhci_vt82c686b_realize(PCIDevice *dev, Error **errp)
{
UHCIState *s = UHCI(dev);
@ -14,6 +25,8 @@ static void usb_uhci_vt82c686b_realize(PCIDevice *dev, Error **errp)
pci_set_long(pci_conf + 0xc0, 0x00002000);
usb_uhci_common_realize(dev, errp);
object_unref(s->irq);
s->irq = qemu_allocate_irq(uhci_isa_set_irq, s, 0);
}
static UHCIInfo uhci_info[] = {