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Diffstat (limited to 'hw/usb/vt82c686-uhci-pci.c')
-rw-r--r--hw/usb/vt82c686-uhci-pci.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/hw/usb/vt82c686-uhci-pci.c b/hw/usb/vt82c686-uhci-pci.c
index b109c21603..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[] = {
@@ -25,6 +38,8 @@ static UHCIInfo uhci_info[] = {
         .irq_pin   = 3,
         .realize   = usb_uhci_vt82c686b_realize,
         .unplug    = true,
+        /* Reason: only works as USB function of VT82xx superio chips */
+        .notuser   = true,
     }
 };