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/*
* Copyright (C) 2001-2003 Hewlett-Packard Co.
* Contributed by Stephane Eranian <eranian@hpl.hp.com>
*
* This file is part of the ELILO, the EFI Linux boot loader.
*
* GNU EFI is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* GNU EFI is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU EFI; see the file COPYING. If not, write to the Free
* Software Foundation, 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* Please check out the elilo.txt for complete documentation on how
* to use this program.
*/
#ifndef __FILEOPS_H__
#define __FILEOPS_H__
#define FILEOPS_NAME_MAXLEN 32 /* length of filesystem name */
/*
* upper-level interface used by the bootloader
*/
typedef UINTN fops_fd_t;
/* Forward declaration: */
struct config_file;
extern EFI_STATUS fops_open(CHAR16 *name, fops_fd_t *fd);
extern EFI_STATUS fops_read(fops_fd_t fd,VOID *buf, UINTN *size);
extern EFI_STATUS fops_close(fops_fd_t fd);
extern EFI_STATUS fops_infosize(fops_fd_t fd, UINT64 *size);
extern EFI_STATUS fops_seek(fops_fd_t fd, UINT64 newpos);
extern EFI_STATUS fops_setdefaults(struct config_file *defconf, CHAR16 *kname, UINTN maxlen, CHAR16 *devpath);
extern EFI_STATUS fops_getdefault_path(CHAR16 *path, UINTN maxlen);
extern CHAR16 *fops_bootdev_name(VOID);
/*
* fileops interface used by underlying filesystems layer
*/
typedef EFI_STATUS (*fops_open_t)(VOID *intf, CHAR16 *name, fops_fd_t *fd);
typedef EFI_STATUS (*fops_read_t)(VOID *intf, fops_fd_t fd, VOID *buf, UINTN *size);
typedef EFI_STATUS (*fops_close_t)(VOID *intf, fops_fd_t fd);
typedef EFI_STATUS (*fops_infosize_t)(VOID *intf, fops_fd_t fd, UINT64 *size);
typedef EFI_STATUS (*fops_seek_t)(VOID *intf, fops_fd_t fd, UINT64 newpos);
typedef EFI_STATUS (*fops_setdefaults_t)(VOID *intf, struct config_file *defconfs, CHAR16 *kname, UINTN maxlen, CHAR16 *devpath);
typedef EFI_STATUS (*fops_getdefault_path_t)(CHAR16 *path, UINTN maxlen);
typedef struct {
VOID *intf; /* pointer to underlying interface */
fops_open_t open;
fops_read_t read;
fops_close_t close;
fops_infosize_t infosize;
fops_seek_t seek;
fops_setdefaults_t setdefaults;
fops_getdefault_path_t getdefault_path;
EFI_HANDLE dev; /* handle on device on which proto is installed */
CHAR16 name[FILEOPS_NAME_MAXLEN];
} fileops_t;
/*
* used to register a new filsystem
*/
typedef INTN (*fops_fs_glue_t)(fileops_t *this, VOID *intf);
typedef EFI_STATUS (*fops_fs_install_t)(VOID);
typedef EFI_STATUS (*fops_fs_uninstall_t)(VOID);
typedef struct {
EFI_GUID proto; /* GUID of filesystem */
fops_fs_glue_t glue; /* glue routine */
fops_fs_install_t install; /* to go away with real EFI drivers */
fops_fs_uninstall_t uninstall; /* to go away with real EFI drivers */
} fileops_fs_t;
/*
* device description
*/
#define FILEOPS_DEVNAME_MAXLEN 16
typedef struct {
EFI_HANDLE dev;
fileops_t *fops;
CHAR16 name[FILEOPS_DEVNAME_MAXLEN];
} device_t;
extern INTN init_devices(EFI_HANDLE boot_handle);
extern INTN close_devices(VOID);
extern VOID print_devices(VOID);
extern EFI_STATUS fops_get_next_device(UINTN pidx, CHAR16 *type, UINTN maxlen, UINTN *idx, CHAR16 *name, EFI_HANDLE *dev);
extern INTN fops_split_path(CHAR16 *path, CHAR16 *dev);
extern EFI_STATUS fops_get_device_handle(CHAR16 *name, EFI_HANDLE *dev);
/*
* device naming schemes
*
* Interface:
* the scheme() function arguments are:
* - the list of detected bootable device
* - the number of entries in that table as argument
*
* There is no expected return value. If the scheme() cannot perform
* its tasks, then IT MUST NOT OVERWRITE the generic naming scheme (devXXX) that
* is ALWAYS installed by default. Partial modifications are possible, although
* not recommended.
*/
typedef struct {
CHAR16 *name;
INTN (*install_scheme)(device_t *tab, UINTN ndev);
} devname_scheme_t;
#endif /* __FILEOPS_H__ */
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