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- #ifndef _IPXE_XENBUS_H
- #define _IPXE_XENBUS_H
-
- /** @file
- *
- * Xen device bus
- *
- */
-
- FILE_LICENCE ( GPL2_OR_LATER );
-
- #include <ipxe/device.h>
- #include <ipxe/tables.h>
- #include <ipxe/xen.h>
- #include <xen/io/xenbus.h>
-
- /** A Xen device */
- struct xen_device {
- /** Generic iPXE device */
- struct device dev;
- /** Xen hypervisor */
- struct xen_hypervisor *xen;
- /** XenStore key */
- char *key;
- /** Backend XenStore key */
- char *backend;
- /** Backend domain ID */
- unsigned long backend_id;
- /** Driver */
- struct xen_driver *driver;
- /** Driver-private data */
- void *priv;
- };
-
- /** A Xen device driver */
- struct xen_driver {
- /** Name */
- const char *name;
- /** Device type */
- const char *type;
- /** Probe device
- *
- * @v xendev Xen device
- * @ret rc Return status code
- */
- int ( * probe ) ( struct xen_device *xendev );
- /** Remove device
- *
- * @v xendev Xen device
- */
- void ( * remove ) ( struct xen_device *xendev );
- };
-
- /** Xen device driver table */
- #define XEN_DRIVERS __table ( struct xen_driver, "xen_drivers" )
-
- /** Declare a Xen device driver */
- #define __xen_driver __table_entry ( XEN_DRIVERS, 01 )
-
- /**
- * Set Xen device driver-private data
- *
- * @v xendev Xen device
- * @v priv Private data
- */
- static inline void xen_set_drvdata ( struct xen_device *xendev, void *priv ) {
- xendev->priv = priv;
- }
-
- /**
- * Get Xen device driver-private data
- *
- * @v xendev Xen device
- * @ret priv Private data
- */
- static inline void * xen_get_drvdata ( struct xen_device *xendev ) {
- return xendev->priv;
- }
-
- extern int xenbus_set_state ( struct xen_device *xendev, int state );
- extern int xenbus_backend_wait ( struct xen_device *xendev, int state );
- extern int xenbus_probe ( struct xen_hypervisor *xen, struct device *parent );
- extern void xenbus_remove ( struct xen_hypervisor *xen, struct device *parent );
-
- #endif /* _IPXE_XENBUS_H */
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