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#ifndef _IPXE_EFI_DRIVER_H
#define _IPXE_EFI_DRIVER_H
/** @file
*
* EFI driver interface
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <ipxe/device.h>
#include <ipxe/tables.h>
#include <ipxe/efi/efi.h>
#include <ipxe/efi/Protocol/DevicePath.h>
/** An EFI device */
struct efi_device {
/** Generic device */
struct device dev;
/** EFI device handle */
EFI_HANDLE device;
/** EFI device path copy */
EFI_DEVICE_PATH_PROTOCOL *path;
/** Driver for this device */
struct efi_driver *driver;
/** Driver-private data */
void *priv;
};
/** An EFI driver */
struct efi_driver {
/** Name */
const char *name;
/**
* Check if driver supports device
*
* @v device EFI device handle
* @ret rc Return status code
*/
int ( * supported ) ( EFI_HANDLE device );
/**
* Attach driver to device
*
* @v efidev EFI device
* @ret rc Return status code
*/
int ( * start ) ( struct efi_device *efidev );
/**
* Detach driver from device
*
* @v efidev EFI device
*/
void ( * stop ) ( struct efi_device *efidev );
};
/** EFI driver table */
#define EFI_DRIVERS __table ( struct efi_driver, "efi_drivers" )
/** Declare an EFI driver */
#define __efi_driver( order ) __table_entry ( EFI_DRIVERS, order )
#define EFI_DRIVER_EARLY 01 /**< Early drivers */
#define EFI_DRIVER_NORMAL 02 /**< Normal drivers */
#define EFI_DRIVER_LATE 03 /**< Late drivers */
/**
* Set EFI driver-private data
*
* @v efidev EFI device
* @v priv Private data
*/
static inline void efidev_set_drvdata ( struct efi_device *efidev,
void *priv ) {
efidev->priv = priv;
}
/**
* Get EFI driver-private data
*
* @v efidev EFI device
* @ret priv Private data
*/
static inline void * efidev_get_drvdata ( struct efi_device *efidev ) {
return efidev->priv;
}
extern struct efi_device * efidev_parent ( struct device *dev );
extern int efi_driver_install ( void );
extern void efi_driver_uninstall ( void );
extern int efi_driver_connect_all ( void );
extern void efi_driver_disconnect_all ( void );
extern void efi_driver_reconnect_all ( void );
#endif /* _IPXE_EFI_DRIVER_H */
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