Add a new method to the PCI bridge interface, PCIB_POWER_FOR_SLEEP(). This

method is used by the PCI bus driver to query the power management system
to determine the proper device state to be used for a device during suspend
and resume.  For the ACPI PCI bridge drivers this calls
acpi_device_pwr_for_sleep().  This removes ACPI-specific knowledge from
the PCI and PCI-PCI bridge drivers.

Reviewed by:	jkim

1 files changed, 10 insertions, 0 deletions

diff --git a/sys/dev/pci/pcib_if.m b/sys/dev/pci/pcib_if.m
index 0b7e8bc..b946c0f 100644
--- a/sys/dev/pci/pcib_if.m
+++ b/sys/dev/pci/pcib_if.m
@@ -144,3 +144,13 @@ METHOD int map_msi {
 	uint64_t	*addr;
 	uint32_t	*data;
 };
+
+#
+# Return the device power state to be used during a system sleep state
+# transition such as suspend and resume.
+#
+METHOD int power_for_sleep {
+	device_t	pcib;
+	device_t	dev;
+	int		*pstate;
+};