[USBOHCI] Workaround for interrupts problem on Xbox

CORE-16352
binarymaster · Sep 28, 2024 · 0c8c843 · 0c8c843
1 parent ca7f261
commit 0c8c843
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/drivers/usb/usbohci/usbohci.c b/drivers/usb/usbohci/usbohci.c
@@ -2124,6 +2124,10 @@ OHCI_CheckController(IN PVOID ohciExtension)
     ULONG FmNumber;
     USHORT FmDiff;
     POHCI_HCCA HcHCCA;
+    PULONG InterruptEnableReg = (PULONG)&OhciExtension->OperationalRegs->HcInterruptEnable;
+    PULONG InterruptStatusReg = (PULONG)&OhciExtension->OperationalRegs->HcInterruptStatus;
+    OHCI_REG_INTERRUPT_STATUS IntStatus;
+    OHCI_REG_INTERRUPT_ENABLE_DISABLE IntEnable;
 
     //DPRINT_OHCI("OHCI_CheckController: ...\n");
 
@@ -2132,6 +2136,14 @@ OHCI_CheckController(IN PVOID ohciExtension)
     if (!OHCI_HardwarePresent(OhciExtension, TRUE))
         return;
 
+    /* Clear all bits in HcInterruptStatus register */
+    IntStatus.AsULONG = 0xFFFFFFFF;
+    WRITE_REGISTER_ULONG(InterruptStatusReg, IntStatus.AsULONG);
+    /* Setup HcInterruptEnable register */
+    IntEnable.AsULONG = 0xFFFFFFFF;
+    IntEnable.Reserved1 = 0;
+    WRITE_REGISTER_ULONG(InterruptEnableReg, IntEnable.AsULONG);
+
     HcControlReg = (PULONG)&OperationalRegs->HcControl;
     HcControl.AsULONG = READ_REGISTER_ULONG(HcControlReg);