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authorAlan Stern <stern@rowland.harvard.edu>2010-06-25 14:02:49 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2010-08-10 14:35:38 -0700
commit0d436b425e07f9e4b0fe571cec061f5d136f1d8b (patch)
treef1ebf7929aaf1b4b5e96e1182085e8924e2d0d50 /drivers/usb/host/uhci-hcd.h
parentff2f07874362d34684296f2bd5547a099f33c6d4 (diff)
downloadblackbird-op-linux-0d436b425e07f9e4b0fe571cec061f5d136f1d8b.tar.gz
blackbird-op-linux-0d436b425e07f9e4b0fe571cec061f5d136f1d8b.zip
USB: UHCI: add support for Intel's wakeup flags
This patch (as1396) adds code to uhci-hcd to support the vendor-specific wakeup settings found in Intel's ICHx hardware. A couple of unnecessary memory barriers are removed. And the root hub isn't put back into the "suspended" state if power was lost during a system sleep -- there's not much point in doing so because the root hub will be resumed shortly. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/uhci-hcd.h')
-rw-r--r--drivers/usb/host/uhci-hcd.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index 26bd1b2bcbfc..49bf2790f9c2 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -67,12 +67,17 @@
#define USBPORTSC_RES3 0x4000 /* reserved, write zeroes */
#define USBPORTSC_RES4 0x8000 /* reserved, write zeroes */
-/* Legacy support register */
+/* PCI legacy support register */
#define USBLEGSUP 0xc0
#define USBLEGSUP_DEFAULT 0x2000 /* only PIRQ enable set */
#define USBLEGSUP_RWC 0x8f00 /* the R/WC bits */
#define USBLEGSUP_RO 0x5040 /* R/O and reserved bits */
+/* PCI Intel-specific resume-enable register */
+#define USBRES_INTEL 0xc4
+#define USBPORT1EN 0x01
+#define USBPORT2EN 0x02
+
#define UHCI_PTR_BITS cpu_to_le32(0x000F)
#define UHCI_PTR_TERM cpu_to_le32(0x0001)
#define UHCI_PTR_QH cpu_to_le32(0x0002)
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