128 lines
4.3 KiB
C
128 lines
4.3 KiB
C
/*
|
|
* 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__ */
|