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disk: Remember the partition number for each volume

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Change-Id: Ied6b0a558eec57435f9299f3e3326714f5e3cdca
This commit is contained in:
Aidan MacDonald 2022-12-22 17:47:32 +00:00 • committed by Solomon Peachy
parent 028f283ee5
commit fee5013514
2 changed files with 23 additions and 3 deletions
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23
firmware/common/disk.c
View file

@ -91,6 +91,7 @@ static bool is_free_volume(const struct volumeinfo *vi)
static void mark_free_volume(struct volumeinfo *vi)
{
vi->drive = -1;
vi->partition = -1;
}
static int get_free_volume(void)
@ -102,6 +103,12 @@ static int get_free_volume(void)
return -1; /* none found */
}
static void init_volume(struct volumeinfo *vi, int drive, int part)
{
vi->drive = drive;
vi->partition = part;
}
#ifdef MAX_LOG_SECTOR_SIZE
static int disk_sector_multiplier[NUM_DRIVES] =
{ [0 ... NUM_DRIVES-1] = 1 };
@ -328,7 +335,7 @@ int disk_mount(int drive)
fat_get_bytes_per_sector(IF_MV(volume)) / SECTOR_SIZE;
#endif
mounted = 1;
volumes[volume].drive = drive;
init_volume(&volumes[volume], drive, 0);
volume_onmount_internal(IF_MV(volume));
}
@ -351,7 +358,7 @@ int disk_mount(int drive)
pinfo[i].start *= j;
pinfo[i].size *= j;
mounted++;
volumes[volume].drive = drive;
init_volume(&volumes[volume], drive, i);
disk_sector_multiplier[drive] = j;
volume_onmount_internal(IF_MV(volume));
volume = get_free_volume(); /* prepare next entry */
@ -362,7 +369,7 @@ int disk_mount(int drive)
if (!fat_mount(IF_MV(volume,) IF_MD(drive,) pinfo[i].start))
{
mounted++;
volumes[volume].drive = drive;
init_volume(&volumes[volume], drive, i);
volume_onmount_internal(IF_MV(volume));
volume = get_free_volume(); /* prepare next entry */
}
@ -516,6 +523,7 @@ enum volume_info_type
#if defined (HAVE_MULTIDRIVE) || defined (HAVE_DIRCACHE)
VP_DRIVE,
#endif
VP_PARTITION,
};
static int volume_properties(int volume, enum volume_info_type infotype)
@ -542,6 +550,9 @@ static int volume_properties(int volume, enum volume_info_type infotype)
res = vi->drive;
break;
#endif
case VP_PARTITION:
res = vi->partition;
break;
}
}
@ -568,6 +579,11 @@ int volume_drive(int volume)
}
#endif /* HAVE_MULTIDRIVE */
int volume_partition(int volume)
{
return volume_properties(volume, VP_PARTITION);
}
#ifdef HAVE_DIRCACHE
bool volume_ismounted(IF_MV_NONVOID(int volume))
{
@ -575,4 +591,5 @@ bool volume_ismounted(IF_MV_NONVOID(int volume))
}
#endif /* HAVE_DIRCACHE */
#endif /* HAVE_HOTSWAP || HAVE_MULTIDRIVE || HAVE_DIRCACHE */

3
firmware/export/mv.h
View file

@ -107,6 +107,7 @@
struct volumeinfo
{
int drive; /* drive number */
int partition; /* partition number (0 for superfloppy drives) */
};
/* Volume-centric functions (in disk.c) */
@ -131,4 +132,6 @@ static inline int volume_drive(int volume)
}
#endif /* HAVE_MULTIDRIVE */
int volume_partition(int volume);
#endif /* __MV_H__ */