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authorAlex Chiang <achiang@hp.com>2009-07-23 17:03:00 -0600
committerJesse Barnes <jbarnes@virtuousgeek.org>2009-09-09 13:29:22 -0700
commit76d56de57ae60c6be383e48e7068fd973d5fb08a (patch)
tree732bcbbd91f7d85d658c1fc08d3ea982fcf100bb /include/acpi
parent2547089ca2db132e307ef68848ba029a8ec2f341 (diff)
downloadlinux-76d56de57ae60c6be383e48e7068fd973d5fb08a.tar.bz2
ACPI: export acpi_pci_root and friends
We can simplify ACPI drivers if we can tell whether a handle is an ACPI PCI root or not. Reviewed-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'include/acpi')
-rw-r--r--include/acpi/acpi_bus.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index c65e4ce6c3af..c3ace75d57b4 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -369,10 +369,26 @@ int register_acpi_bus_type(struct acpi_bus_type *);
int unregister_acpi_bus_type(struct acpi_bus_type *);
struct device *acpi_get_physical_device(acpi_handle);
+struct acpi_pci_root {
+ struct list_head node;
+ struct acpi_device * device;
+ struct acpi_pci_id id;
+ struct pci_bus *bus;
+ u16 segment;
+ u8 bus_nr;
+
+ u32 osc_support_set; /* _OSC state of support bits */
+ u32 osc_control_set; /* _OSC state of control bits */
+ u32 osc_control_qry; /* the latest _OSC query result */
+
+ u32 osc_queried:1; /* has _OSC control been queried? */
+};
+
/* helper */
acpi_handle acpi_get_child(acpi_handle, acpi_integer);
int acpi_is_root_bridge(acpi_handle);
acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int);
+struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
#define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)((dev)->archdata.acpi_handle))
#ifdef CONFIG_PM_SLEEP