blob: 620d77d30dc968174137e94da1a210e23e0337fb (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 by Frank Gevaerts
*
* 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 __MV_H__
#define __MV_H__
#include <stdbool.h>
#include "config.h"
/* FixMe: These macros are a bit nasty and perhaps misplaced here.
We'll get rid of them once decided on how to proceed with multivolume. */
/* Drives are things like a disk, a card, a flash chip. They can have volumes
on them */
#ifdef HAVE_MULTIDRIVE
#define IF_MD(x...) x /* valist contents or empty */
#define IF_MD_NONVOID(x...) x /* valist contents or 'void' */
#define IF_MD_DRV(d) d /* drive argument or '0' */
#else /* empty definitions if no multi-drive */
#define IF_MD(x...)
#define IF_MD_NONVOID(x...) void
#define IF_MD_DRV(d) 0
#endif /* HAVE_MULTIDRIVE */
/* Volumes mean things that have filesystems on them, like partitions */
#ifdef HAVE_MULTIVOLUME
#define IF_MV(x...) x /* valist contents or empty */
#define IF_MV_NONVOID(x...) x /* valist contents or 'void' */
#define IF_MV_VOL(v) v /* volume argument or '0' */
/* Format: "/<DEC###>/foo/bar"
* The "DEC" is pure decoration and treated as a comment. Only an unbroken
* trailing string of digits within the brackets is parsed as the volume
* number.
*
* IMPORTANT!: Adjust VOL_DEC_MAX_LEN if needed to the longest of these
*/
#define DEFAULT_VOL_DEC "Volume"
#if (CONFIG_STORAGE & STORAGE_ATA)
#define ATA_VOL_DEC "HDD"
#endif
#if (CONFIG_STORAGE & STORAGE_MMC)
#define MMC_VOL_DEC "MMC"
#endif
#if (CONFIG_STORAGE & STORAGE_SD)
#define SD_VOL_DEC "microSD"
#endif
#if (CONFIG_STORAGE & STORAGE_NAND)
#define NAND_VOL_DEC "NAND"
#endif
#if (CONFIG_STORAGE & STORAGE_RAMDISK)
#define RAMDISK_VOL_DEC "RAMDisk"
#endif
#if (CONFIG_STORAGE & STORAGE_HOSTFS)
#ifndef HOSTFS_VOL_DEC /* overridable */
#define HOSTFS_VOL_DEC DEFAULT_VOL_DEC
#endif
#endif
/* Characters that delimit a volume specifier at any root point in the path.
The tokens must be outside of legal filename characters */
#define VOL_START_TOK '<'
#define VOL_END_TOK '>'
#define VOL_DEC_MAX_LEN 7 /* biggest of all xxx_VOL_DEC defines */
#define VOL_MAX_LEN (1 + VOL_DEC_MAX_LEN + 2 + 1)
#define VOL_NUM_MAX 100
#else /* empty definitions if no multi-volume */
#define IF_MV(x...)
#define IF_MV_NONVOID(x...) void
#define IF_MV_VOL(v) 0
#endif /* HAVE_MULTIVOLUME */
#define CHECK_VOL(volume) \
((unsigned int)IF_MV_VOL(volume) < NUM_VOLUMES)
#define CHECK_DRV(drive) \
((unsigned int)IF_MD_DRV(drive) < NUM_DRIVES)
/* Volume-centric functions (in disk.c) */
void volume_recalc_free(IF_MV_NONVOID(int volume));
unsigned int volume_get_cluster_size(IF_MV_NONVOID(int volume));
void volume_size(IF_MV(int volume,) unsigned long *size, unsigned long *free);
bool volume_ismounted(IF_MV_NONVOID(int volume));
#ifdef HAVE_HOTSWAP
bool volume_removable(int volume);
bool volume_present(int volume);
#endif /* HAVE_HOTSWAP */
#ifdef HAVE_MULTIDRIVE
int volume_drive(int volume);
#else /* !HAVE_MULTIDRIVE */
static inline int volume_drive(int volume)
{
return 0;
(void)volume;
}
#endif /* HAVE_MULTIDRIVE */
#endif /* __MV_H__ */
|
