pnp: Implement common handling for PnP config modes

Many super i/o chips only answer to PnP requests if they are in a
configuration state (sometimes also called ext func mode). To cope with
that, the code of many chips implements its own version of our default
PnP functions like pnp_set_resource(), pnp_enable_resource() etc.

To avoid this code duplication, this patch extends our PnP device
interface with optional functions to enter and exit configuration mode.

Change-Id: I9b7662a0db70ede93276764fa15020f251eb46bd
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: http://review.coreboot.org/3481
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/include/device/device.h b/src/include/device/device.h
index 44a9742ab8..9defb19d83 100644
--- a/src/include/device/device.h
+++ b/src/include/device/device.h
@@ -13,6 +13,7 @@ typedef struct device * device_t;
 struct pci_operations;
 struct pci_bus_operations;
 struct smbus_bus_operations;
+struct pnp_mode_ops;
 
 /* Chip operations */
 struct chip_operations {
@@ -42,6 +43,7 @@ struct device_operations {
 	const struct pci_operations *ops_pci;
 	const struct smbus_bus_operations *ops_smbus_bus;
 	const struct pci_bus_operations *ops_pci_bus;
+	const struct pnp_mode_ops *ops_pnp_mode;
 };
 #endif