diff options
| author | BALATON Zoltan <balaton@eik.bme.hu> | 2021-10-25 13:33:49 +0200 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2021-11-02 14:32:32 +0100 |
| commit | 4f3b0a4d757f40cbd51987e4c7cf7cbd10951178 (patch) | |
| tree | 6f7d41c9dc756008570f95908a1de0b92b394201 /hw/usb | |
| parent | e4f5b93986cdcc137487ebea6e84b9d9e82e0990 (diff) | |
hw/usb/vt82c686-uhci-pci: Use ISA instead of PCI interrupts
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>
Diffstat (limited to 'hw/usb')
| -rw-r--r-- | hw/usb/vt82c686-uhci-pci.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/hw/usb/vt82c686-uhci-pci.c b/hw/usb/vt82c686-uhci-pci.c index ea262e6d70..0bf2b72ff0 100644 --- a/hw/usb/vt82c686-uhci-pci.c +++ b/hw/usb/vt82c686-uhci-pci.c @@ -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[] = { |