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authorGerd Hoffmann <kraxel@redhat.com>2012-05-25 12:53:47 +0200
committerGerd Hoffmann <kraxel@redhat.com>2012-06-07 10:02:20 +0200
commit973002c11460efd3c17fe61a76711a103e30e1f9 (patch)
treeb5a6022137a970ded09d2eed172392e2230c3241 /hw
parent5852d3bfe16c85d4dabc4e0d21658fc680a756e5 (diff)
uhci: fix irq routing
The multifunction ich9 ehci controller with uhci companions uses a different interrupt pin for each function. The three uhci devices get pins A, B and C, whereas ehci uses pin D. This way the guest can assign different IRQ lines to each controller. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw')
-rw-r--r--hw/usb/hcd-uhci.c21
1 files changed, 19 insertions, 2 deletions
diff --git a/hw/usb/hcd-uhci.c b/hw/usb/hcd-uhci.c
index 3ea388c8fa..9871e24f50 100644
--- a/hw/usb/hcd-uhci.c
+++ b/hw/usb/hcd-uhci.c
@@ -138,6 +138,7 @@ struct UHCIState {
/* Interrupts that should be raised at the end of the current frame. */
uint32_t pending_int_mask;
+ int irq_pin;
/* Active packets */
QTAILQ_HEAD(, UHCIQueue) queues;
@@ -340,7 +341,7 @@ static void uhci_update_irq(UHCIState *s)
} else {
level = 0;
}
- qemu_set_irq(s->dev.irq[3], level);
+ qemu_set_irq(s->dev.irq[s->irq_pin], level);
}
static void uhci_reset(void *opaque)
@@ -1184,15 +1185,31 @@ static USBBusOps uhci_bus_ops = {
static int usb_uhci_common_initfn(PCIDevice *dev)
{
+ PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
UHCIState *s = DO_UPCAST(UHCIState, dev, dev);
uint8_t *pci_conf = s->dev.config;
int i;
pci_conf[PCI_CLASS_PROG] = 0x00;
/* TODO: reset value should be 0. */
- pci_conf[PCI_INTERRUPT_PIN] = 4; /* interrupt pin D */
pci_conf[USB_SBRN] = USB_RELEASE_1; // release number
+ switch (pc->device_id) {
+ case PCI_DEVICE_ID_INTEL_82801I_UHCI1:
+ s->irq_pin = 0; /* A */
+ break;
+ case PCI_DEVICE_ID_INTEL_82801I_UHCI2:
+ s->irq_pin = 1; /* B */
+ break;
+ case PCI_DEVICE_ID_INTEL_82801I_UHCI3:
+ s->irq_pin = 2; /* C */
+ break;
+ default:
+ s->irq_pin = 3; /* D */
+ break;
+ }
+ pci_config_set_interrupt_pin(pci_conf, s->irq_pin + 1);
+
if (s->masterbus) {
USBPort *ports[NB_PORTS];
for(i = 0; i < NB_PORTS; i++) {