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Fastfs testing

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This commit is contained in:
Such Meme, Many Skill
2020-05-19 17:54:21 +02:00
parent a8e86c2de3
commit b91c36d3fa
6 changed files with 249 additions and 23 deletions
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220
source/libs/fatfs/ff.c
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@@ -42,8 +42,8 @@
#include "../../storage/sdmmc.h"
extern sdmmc_storage_t sd_storage;
#define EFSPRINTF(text, ...) print_error(); gfx_printf("%k"text"%k\n", 0xFFFFFF00, 0xFFFFFFFF);
//#define EFSPRINTF(...)
//#define EFSPRINTF(text, ...) print_error(); gfx_printf("%k"text"%k\n", 0xFFFFFF00, 0xFFFFFFFF);
#define EFSPRINTF(...)
/*--------------------------------------------------------------------------
@@ -4056,7 +4056,216 @@ FRESULT f_write (
LEAVE_FF(fs, FR_OK);
}
#ifdef FF_FASTFS
/*-----------------------------------------------------------------------*/
/* Fast Read Aligned Sized File Without a Cache */
/*-----------------------------------------------------------------------*/
#if FF_USE_FASTSEEK
FRESULT f_read_fast (
FIL* fp, /* Pointer to the file object */
const void* buff, /* Pointer to the data to be written */
UINT btr /* Number of bytes to read */
)
{
if (btr % 65536 != 0)
return f_read(fp, buff, btr, NULL);
FRESULT res;
FATFS *fs;
UINT csize_bytes;
DWORD clst;
UINT count = 0;
FSIZE_t work_sector = 0;
FSIZE_t sector_base = 0;
BYTE *wbuff = (BYTE*)buff;
// TODO support sector reading inside a cluster
res = validate(&fp->obj, &fs); /* Check validity of the file object */
if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) {
EFSPRINTF("FOV");
LEAVE_FF(fs, res); /* Check validity */
}
if (!(fp->flag & FA_READ)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */
FSIZE_t remain = fp->obj.objsize - fp->fptr;
if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
csize_bytes = fs->csize * SS(fs);
if (!fp->fptr) { /* On the top of the file? */
clst = fp->obj.sclust; /* Follow from the origin */
} else {
if (fp->cltbl) clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
else { EFSPRINTF("CLTBL"); ABORT(fs, FR_CLTBL_NO_INIT); }
}
if (clst < 2) { EFSPRINTF("CCHK"); ABORT(fs, FR_INT_ERR); }
else if (clst == 0xFFFFFFFF) { EFSPRINTF("DSKC"); ABORT(fs, FR_DISK_ERR); }
fp->clust = clst; /* Set working cluster */
sector_base = clst2sect(fs, fp->clust);
count += fs->csize;
btr -= csize_bytes;
fp->fptr += csize_bytes;
while (btr) {
clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
if (clst < 2) { EFSPRINTF("CCHK2"); ABORT(fs, FR_INT_ERR); }
else if (clst == 0xFFFFFFFF) { EFSPRINTF("DSKC"); ABORT(fs, FR_DISK_ERR); }
fp->clust = clst;
work_sector = clst2sect(fs, fp->clust);
if ((work_sector - sector_base) == count) count += fs->csize;
else {
if (disk_read(fs->pdrv, wbuff, sector_base, count) != RES_OK) ABORT(fs, FR_DISK_ERR);
wbuff += count * SS(fs);
sector_base = work_sector;
count = fs->csize;
}
fp->fptr += MIN(btr, csize_bytes);
btr -= MIN(btr, csize_bytes);
// TODO: what about if data is smaller than cluster?
// Must read-write back that cluster.
if (!btr) { /* Final cluster/sectors read. */
if (disk_read(fs->pdrv, wbuff, sector_base, count) != RES_OK) ABORT(fs, FR_DISK_ERR);
}
}
LEAVE_FF(fs, FR_OK);
}
#endif
#endif
#ifdef FF_FASTFS
/*-----------------------------------------------------------------------*/
/* Fast Write Aligned Sized File Without a Cache */
/*-----------------------------------------------------------------------*/
#if FF_USE_FASTSEEK
FRESULT f_write_fast (
FIL* fp, /* Pointer to the file object */
const void* buff, /* Pointer to the data to be written */
UINT btw /* Number of bytes to write */
)
{
if (btw % 65536 != 0)
return f_write(fp, buff, btw, NULL);
FRESULT res;
FATFS *fs;
UINT csize_bytes;
DWORD clst;
UINT count = 0;
FSIZE_t work_sector = 0;
FSIZE_t sector_base = 0;
const BYTE *wbuff = (const BYTE*)buff;
// TODO support sector writing inside a cluster
res = validate(&fp->obj, &fs); /* Check validity of the file object */
if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) {
EFSPRINTF("FOV");
LEAVE_FF(fs, res); /* Check validity */
}
if (!(fp->flag & FA_WRITE)) LEAVE_FF(fs, FR_DENIED); /* Check access mode */
/* Check fptr wrap-around (file size cannot reach 4 GiB at FAT volume) */
if ((!FF_FS_EXFAT || fs->fs_type != FS_EXFAT) && (DWORD)(fp->fptr + btw) < (DWORD)fp->fptr) {
btw = (UINT)(0xFFFFFFFF - (DWORD)fp->fptr);
}
csize_bytes = fs->csize * SS(fs);
if (!fp->fptr) { /* On the top of the file? */
clst = fp->obj.sclust; /* Follow from the origin */
} else {
if (fp->cltbl) clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
else { EFSPRINTF("CLTBL"); ABORT(fs, FR_CLTBL_NO_INIT); }
}
if (clst < 2) { EFSPRINTF("CCHK"); ABORT(fs, FR_INT_ERR); }
else if (clst == 0xFFFFFFFF) { EFSPRINTF("DERR"); ABORT(fs, FR_DISK_ERR); }
fp->clust = clst; /* Set working cluster */
sector_base = clst2sect(fs, fp->clust);
count += fs->csize;
btw -= csize_bytes;
fp->fptr += csize_bytes;
while (btw) {
clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
if (clst < 2) { EFSPRINTF("CCHK2"); ABORT(fs, FR_INT_ERR); }
else if (clst == 0xFFFFFFFF) { EFSPRINTF("DERR"); ABORT(fs, FR_DISK_ERR); }
fp->clust = clst;
work_sector = clst2sect(fs, fp->clust);
if ((work_sector - sector_base) == count) count += fs->csize;
else {
if (disk_write(fs->pdrv, wbuff, sector_base, count) != RES_OK) ABORT(fs, FR_DISK_ERR);
wbuff += count * SS(fs);
sector_base = work_sector;
count = fs->csize;
}
fp->fptr += MIN(btw, csize_bytes);
btw -= MIN(btw, csize_bytes);
// what about if data is smaller than cluster?
// Probably must read-write back that cluster.
if (!btw) { /* Final cluster/sectors write. */
if (disk_write(fs->pdrv, wbuff, sector_base, count) != RES_OK) ABORT(fs, FR_DISK_ERR);
fp->flag &= (BYTE)~FA_DIRTY;
}
}
fp->flag |= FA_MODIFIED; /* Set file change flag */
LEAVE_FF(fs, FR_OK);
}
#endif
#endif
#ifdef FF_FASTFS
#if FF_USE_FASTSEEK
/*-----------------------------------------------------------------------*/
/* Seek File Read/Write Pointer */
/*-----------------------------------------------------------------------*/
DWORD *f_expand_cltbl (
FIL* fp, /* Pointer to the file object */
UINT tblsz, /* Size of table */
FSIZE_t ofs /* File pointer from top of file */
)
{
if (fp->flag & FA_WRITE) f_lseek(fp, ofs); /* Expand file if write is enabled */
if (!fp->cltbl) { /* Allocate memory for cluster link table */
fp->cltbl = (DWORD *)ff_memalloc(tblsz);
fp->cltbl[0] = tblsz;
}
if (f_lseek(fp, CREATE_LINKMAP)) { /* Create cluster link table */
ff_memfree(fp->cltbl);
fp->cltbl = NULL;
EFSPRINTF("CLTBLSZ");
return NULL;
}
f_lseek(fp, 0);
return fp->cltbl;
}
#endif
#endif
/*-----------------------------------------------------------------------*/
@@ -4169,6 +4378,13 @@ FRESULT f_close (
#endif
}
}
if (fp->cltbl != NULL){
ff_memfree(fp->cltbl);
fp->cltbl = NULL;
}
return res;
}