Module Name: src
Committed By: sborrill
Date: Mon Jun 12 10:59:47 UTC 2017
Modified Files:
src/sys/dev/pci: ehci_pci.c
Log Message:
Deal with broken BIOSes that leave PCI interrupts disabled.
Thanks to nick@
To generate a diff of this commit:
cvs rdiff -u -r1.64 -r1.65 src/sys/dev/pci/ehci_pci.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/pci/ehci_pci.c
diff -u src/sys/dev/pci/ehci_pci.c:1.64 src/sys/dev/pci/ehci_pci.c:1.65
--- src/sys/dev/pci/ehci_pci.c:1.64 Thu Oct 13 20:05:06 2016
+++ src/sys/dev/pci/ehci_pci.c Mon Jun 12 10:59:47 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: ehci_pci.c,v 1.64 2016/10/13 20:05:06 jdolecek Exp $ */
+/* $NetBSD: ehci_pci.c,v 1.65 2017/06/12 10:59:47 sborrill Exp $ */
/*
* Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ehci_pci.c,v 1.64 2016/10/13 20:05:06 jdolecek Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ehci_pci.c,v 1.65 2017/06/12 10:59:47 sborrill Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -161,10 +161,14 @@ ehci_pci_attach(device_t parent, device_
break;
}
+ pcireg_t intr = pci_conf_read(pc, tag, PCI_INTERRUPT_REG);
+ int pin = PCI_INTERRUPT_PIN(intr);
+
/* Enable the device. */
csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
- pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG,
- csr | PCI_COMMAND_MASTER_ENABLE);
+ csr |= PCI_COMMAND_MASTER_ENABLE;
+ csr &= ~(pin ? PCI_COMMAND_INTERRUPT_DISABLE : 0);
+ pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, csr);
/* Map and establish the interrupt. */
if (pci_intr_map(pa, &ih)) {
