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firmware: speed up directory scanning

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This commit is contained in:
ikari
2011-11-10 15:31:58 +01:00
parent 60efa60bb4
commit 3fda86125c
7 changed files with 56 additions and 27 deletions
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61
src/ff.c
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@@ -2822,6 +2822,46 @@ FRESULT f_readdir (
}
FRESULT l_opendirbycluster (
FATFS *fs,
DIR *dj,
const TCHAR *path,
DWORD clust
)
{
FRESULT res;
res = chk_mounted(&path, &fs, 0);
DEF_NAMEBUF;
INIT_BUF(*dj);
dj->sclust = clust;
dj->fs = fs;
dj->id = fs->id;
dj->dir = 0;
res = dir_sdi(dj, 0);
FREE_BUF();
return res;
}
FRESULT l_openfilebycluster (
FATFS *fs, /* Pointer to file system object */
FIL *fp, /* Pointer to the blank file object */
const TCHAR *path,
DWORD clust, /* Cluster number to be opened */
DWORD fsize /* File size to be assumed */
)
{
chk_mounted(&path, &fs, 0);
fp->flag = FA_READ;
fp->org_clust = clust;
fp->fsize = fsize;
fp->fptr = 0;
fp->dsect = 0;
fp->fs = fs;
return FR_OK;
}
#if _FS_MINIMIZE == 0
/*-----------------------------------------------------------------------*/
@@ -2854,27 +2894,6 @@ FRESULT f_stat (
LEAVE_FF(dj.fs, res);
}
FRESULT l_openfilebycluster (
FATFS *fs, /* Pointer to file system object */
FIL *fp, /* Pointer to the blank file object */
const TCHAR *path,
DWORD clust, /* Cluster number to be opened */
DWORD fsize /* File size to be assumed */
)
{
chk_mounted(&path, &fs, 0);
fp->flag = FA_READ;
fp->org_clust = clust;
fp->fsize = fsize;
fp->fptr = 0;
fp->dsect = 0;
fp->fs = fs;
return FR_OK;
}
#if !_FS_READONLY
/*-----------------------------------------------------------------------*/
/* Get Number of Free Clusters */