mirror of
https://github.com/Rockbox/rockbox.git
synced 2025-10-13 18:17:39 -04:00
1516c48a37
Normally, we figure out the virual sector size from the filesystem info. However, if there's no filesystem, we fall back to the hardware's logical sector size. Some device firmware (eg ipod5g/6g) need their partition tables set up with larger-than-logical sector sizes; this way we can present the "correct" sector size to maintain interoperability with the stock firmware and make it so that the drive can still be properly partitioned from within rockbox. This patch adds support for DEFAULT_VIRT_SECTOR_SIZE. Nothing uses it yet. Change-Id: Iae746a50ffc37c51abb2c9b82d3c4596f1fa7559
68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2002 by Björn Stenberg
|
|
*
|
|
* This program 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
#ifndef _DISK_H_
|
|
#define _DISK_H_
|
|
|
|
#include "config.h"
|
|
#include "mv.h" /* for volume definitions */
|
|
|
|
struct partinfo
|
|
{
|
|
sector_t start; /* first sector (LBA) */
|
|
sector_t size; /* number of sectors */
|
|
unsigned char type;
|
|
};
|
|
|
|
#define PARTITION_TYPE_FAT32 0x0b
|
|
#define PARTITION_TYPE_FAT32_LBA 0x0c
|
|
#define PARTITION_TYPE_FAT16 0x06
|
|
#define PARTITION_TYPE_OS2_HIDDEN_C_DRIVE 0x84
|
|
#define PARTITION_TYPE_GPT_GUARD 0xee
|
|
|
|
#define MAX_PARTITIONS_PER_DRIVE 4 /* Needs to be at least 4 */
|
|
|
|
bool disk_init(IF_MD_NONVOID(int drive));
|
|
bool disk_partinfo(int partition, struct partinfo *info);
|
|
|
|
int disk_mount_all(void); /* returns the # of successful mounts */
|
|
int disk_mount(int drive);
|
|
int disk_unmount_all(void);
|
|
int disk_unmount(int drive);
|
|
|
|
/* Used when the drive's logical sector size is smaller than the sector size used by the partition table and filesystem. Notably needed for ipod 5.5G/6G. */
|
|
#ifdef MAX_VIRT_SECTOR_SIZE
|
|
int disk_get_sector_multiplier(IF_MD_NONVOID(int drive));
|
|
/* The logical sector size to use when we have no valid paritions */
|
|
#ifdef DEFAULT_VIRT_SECTOR_SIZE
|
|
void disk_set_sector_multiplier(IF_MD(int drive,) uint16_t mult);
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef MAX_VARIABLE_LOG_SECTOR
|
|
/* The size of the drive's smallest addressible unit */
|
|
int disk_get_log_sector_size(IF_MD_NONVOID(int drive));
|
|
#else
|
|
#define disk_get_log_sector_size(...) SECTOR_SIZE
|
|
#endif
|
|
|
|
bool disk_present(IF_MD_NONVOID(int drive));
|
|
|
|
#endif /* _DISK_H_ */
|