grub2/include/grub/disk.h
okuji 8de3495c7b 2005-08-12 Yoshinori K. Okuji <okuji@enbug.org>
* DISTLIST: Added normal/completion.c.

        * normal/completion.c: New file.

        * term/i386/pc/console.c (grub_console_getwh): New function.
        (grub_console_term): Assign grub_console_getwh to getwh.

        * normal/cmdline.c (grub_tab_complete): Removed. Now the same
        function is defined in normal/completion.c as
        grub_normal_do_completion.
        (grub_cmdline_get): Use grub_normal_do_completion instead of
        grub_tab_complete.

        * kern/partition.c (grub_partition_map_iterate): Return 1 if HOOK
        returns non-zero, otherwise return 0.
        (grub_partition_iterate): First, probe the partition map. Then,
        call ITERATE only for this partition map.

        * kern/misc.c (grub_strncmp): Rewritten.

        * kern/disk.c (grub_disk_dev_iterate): Return 1 if P->ITERATE
        returns non-zero. Otherwise return 0.

        * include/grub/partition.h (grub_partition_map_iterate): Return
        int instead of void.

        * include/grub/normal.h (grub_normal_do_completion): New prototype.

        * include/grub/misc.h (grub_strncmp): Change the type of N to
        grub_size_t.

        * include/grub/disk.h (grub_disk_dev_iterate): Return int instead
        of void.

        * normal/menu.c (draw_border): Cast GRUB_TERM_BORDER_WIDTH to
        unsigned explictly before comparing it with I.

        * kern/main.c (grub_env_write_root): Add the attribute unused into
        VAR.

        * conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Added
        normal/completion.c.
        (normal_mod_SOURCES): Likewise.
        * conf/i386-pc.rmk (grub_emu_SOURCES): Likewise.
        (normal_mod_SOURCES): Likewise.

        * normal/command.c (grub_iterate_commands): If ITERATE returns
        non-zero, return one immediately.
2005-08-12 19:53:33 +00:00

136 lines
3.9 KiB
C

/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
*
* GRUB 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 of the License, or
* (at your option) any later version.
*
* This program 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 GRUB; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef GRUB_DISK_HEADER
#define GRUB_DISK_HEADER 1
#include <grub/symbol.h>
#include <grub/err.h>
#include <grub/types.h>
#include <grub/device.h>
/* These are used to set a device id. When you add a new disk device,
you must define a new id for it here. */
enum grub_disk_dev_id
{
GRUB_DISK_DEVICE_BIOSDISK_ID,
GRUB_DISK_DEVICE_OFDISK_ID,
GRUB_DISK_DEVICE_LOOPBACK_ID
};
struct grub_disk;
/* Disk device. */
struct grub_disk_dev
{
/* The device name. */
const char *name;
/* The device id used by the cache manager. */
unsigned long id;
/* Call HOOK with each device name, until HOOK returns non-zero. */
int (*iterate) (int (*hook) (const char *name));
/* Open the device named NAME, and set up DISK. */
grub_err_t (*open) (const char *name, struct grub_disk *disk);
/* Close the disk DISK. */
void (*close) (struct grub_disk *disk);
/* Read SIZE sectors from the sector SECTOR of the disk DISK into BUF. */
grub_err_t (*read) (struct grub_disk *disk, unsigned long sector,
unsigned long size, char *buf);
/* Write SIZE sectors from BUF into the sector SECTOR of the disk DISK. */
grub_err_t (*write) (struct grub_disk *disk, unsigned long sector,
unsigned long size, const char *buf);
/* The next disk device. */
struct grub_disk_dev *next;
};
typedef struct grub_disk_dev *grub_disk_dev_t;
struct grub_partition;
/* Disk. */
struct grub_disk
{
/* The disk name. */
const char *name;
/* The underlying disk device. */
grub_disk_dev_t dev;
/* The total number of sectors. */
unsigned long total_sectors;
/* If partitions can be stored. */
int has_partitions;
/* The id used by the disk cache manager. */
unsigned long id;
/* The partition information. This is machine-specific. */
struct grub_partition *partition;
/* Called when a sector was read. */
void (*read_hook) (unsigned long sector, unsigned offset, unsigned length);
/* Device-specific data. */
void *data;
};
typedef struct grub_disk *grub_disk_t;
/* The sector size. */
#define GRUB_DISK_SECTOR_SIZE 0x200
#define GRUB_DISK_SECTOR_BITS 9
/* The maximum number of disk caches. */
#define GRUB_DISK_CACHE_NUM 1021
/* The size of a disk cache in sector units. */
#define GRUB_DISK_CACHE_SIZE 8
#define GRUB_DISK_CACHE_BITS 3
/* This is called from the memory manager. */
void grub_disk_cache_invalidate_all (void);
void EXPORT_FUNC(grub_disk_dev_register) (grub_disk_dev_t dev);
void EXPORT_FUNC(grub_disk_dev_unregister) (grub_disk_dev_t dev);
int EXPORT_FUNC(grub_disk_dev_iterate) (int (*hook) (const char *name));
grub_disk_t EXPORT_FUNC(grub_disk_open) (const char *name);
void EXPORT_FUNC(grub_disk_close) (grub_disk_t disk);
grub_err_t EXPORT_FUNC(grub_disk_read) (grub_disk_t disk,
unsigned long sector,
unsigned long offset,
unsigned long size,
char *buf);
grub_err_t EXPORT_FUNC(grub_disk_write) (grub_disk_t disk,
unsigned long sector,
unsigned long offset,
unsigned long size,
const char *buf);
grub_err_t EXPORT_FUNC(grub_print_partinfo) (grub_device_t disk,
char *partname);
#endif /* ! GRUB_DISK_HEADER */