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https://github.com/Decscots/Lockpick_RCM
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fatfs: Merge some hekate changes
This commit is contained in:
shchmue
parent
c7972f043d
commit
d8586b4763
2 changed files with 75 additions and 57 deletions
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@ -38,10 +38,8 @@
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#include "ff.h" /* Declarations of FatFs API */
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#include "diskio.h" /* Declarations of device I/O functions */
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#include "../../gfx/gfx.h"
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#define EFSPRINTF(text, ...) print_error(); gfx_printf("%k"text"%k\n", 0xFFFFFF00, 0xFFFFFFFF);
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//#define EFSPRINTF(...)
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#define EFSPRINTF(text, ...)
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/*--------------------------------------------------------------------------
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@ -532,7 +530,7 @@ static WCHAR LfnBuf[FF_MAX_LFN + 1]; /* LFN working buffer */
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#define FREE_NAMBUF() ff_memfree(lfn)
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#endif
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#define LEAVE_MKFS(res) { if (!work) ff_memfree(buf); return res; }
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#define MAX_MALLOC 0x8000 /* Must be >=FF_MAX_SS */
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#define MAX_MALLOC 0x4000 /* Must be >=FF_MAX_SS */
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#else
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#error Wrong setting of FF_USE_LFN
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@ -592,16 +590,6 @@ static const BYTE DbcTbl[] = MKCVTBL(TBL_DC, FF_CODE_PAGE);
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---------------------------------------------------------------------------*/
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/*-----------------------------------------------------------------------*/
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/* Print error header */
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/*-----------------------------------------------------------------------*/
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void print_error()
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{
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gfx_printf("\n\n\n%k[FatFS] Error: %k", 0xFFFFFF00, 0xFFFFFFFF);
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}
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/*-----------------------------------------------------------------------*/
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/* Load/Store multi-byte word in the FAT structure */
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/*-----------------------------------------------------------------------*/
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@ -3921,13 +3909,12 @@ FRESULT f_read_fast (
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FATFS *fs;
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UINT csize_bytes;
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DWORD clst;
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UINT count = 0;
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DWORD wbytes;
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UINT count;
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FSIZE_t work_sector = 0;
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FSIZE_t sector_base = 0;
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BYTE *wbuff = (BYTE*)buff;
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// TODO support sector reading inside a cluster
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res = validate(&fp->obj, &fs); /* Check validity of the file object */
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if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) {
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EFSPRINTF("FOV");
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@ -3939,6 +3926,17 @@ FRESULT f_read_fast (
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if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */
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csize_bytes = fs->csize * SS(fs);
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DWORD csect = (UINT)((fp->fptr / SS(fs)) & (fs->csize - 1)); /* Sector offset in the cluster */
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/* If inside a cluster, read the sectors and align to cluster. */
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if (csect) {
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wbytes = MIN(btr, (fs->csize - csect) * SS(fs));
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f_read(fp, wbuff, wbytes, (void *)0);
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wbuff += wbytes;
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btr -= wbytes;
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if (!btr)
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goto out;
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}
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if (!fp->fptr) { /* On the top of the file? */
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clst = fp->obj.sclust; /* Follow from the origin */
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@ -3946,15 +3944,22 @@ FRESULT f_read_fast (
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if (fp->cltbl) clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
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else { EFSPRINTF("CLTBL"); ABORT(fs, FR_CLTBL_NO_INIT); }
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}
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if (clst < 2) { EFSPRINTF("CCHK"); ABORT(fs, FR_INT_ERR); }
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else if (clst == 0xFFFFFFFF) { EFSPRINTF("DSKC"); ABORT(fs, FR_DISK_ERR); }
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fp->clust = clst; /* Set working cluster */
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wbytes = MIN(btr, csize_bytes);
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sector_base = clst2sect(fs, fp->clust);
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count += fs->csize;
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btr -= csize_bytes;
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fp->fptr += csize_bytes;
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count = wbytes / SS(fs);
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fp->fptr += wbytes;
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btr -= wbytes;
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if (!btr) { /* Final cluster/sectors read. */
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if (disk_read(fs->pdrv, wbuff, sector_base, count) != RES_OK) ABORT(fs, FR_DISK_ERR);
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goto out;
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}
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while (btr) {
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clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
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@ -3965,26 +3970,25 @@ FRESULT f_read_fast (
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fp->clust = clst;
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work_sector = clst2sect(fs, fp->clust);
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if ((work_sector - sector_base) == count) count += fs->csize;
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wbytes = MIN(btr, csize_bytes);
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if ((work_sector - sector_base) == count) count += wbytes / SS(fs);
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else {
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if (disk_read(fs->pdrv, wbuff, sector_base, count) != RES_OK) ABORT(fs, FR_DISK_ERR);
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wbuff += count * SS(fs);
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sector_base = work_sector;
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count = fs->csize;
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count = wbytes / SS(fs);
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}
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fp->fptr += MIN(btr, csize_bytes);
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btr -= MIN(btr, csize_bytes);
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// TODO: what about if data is smaller than cluster?
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// Must read-write back that cluster.
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fp->fptr += wbytes;
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btr -= wbytes;
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if (!btr) { /* Final cluster/sectors read. */
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if (disk_read(fs->pdrv, wbuff, sector_base, count) != RES_OK) ABORT(fs, FR_DISK_ERR);
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}
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}
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out:
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LEAVE_FF(fs, FR_OK);
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}
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#endif
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@ -4147,12 +4151,11 @@ FRESULT f_write_fast (
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FATFS *fs;
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UINT csize_bytes;
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DWORD clst;
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UINT count = 0;
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DWORD wbytes;
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UINT count;
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FSIZE_t work_sector = 0;
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FSIZE_t sector_base = 0;
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const BYTE *wbuff = (const BYTE*)buff;
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// TODO support sector writing inside a cluster
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BYTE *wbuff = (BYTE*)buff;
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res = validate(&fp->obj, &fs); /* Check validity of the file object */
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if (res != FR_OK || (res = (FRESULT)fp->err) != FR_OK) {
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@ -4167,6 +4170,19 @@ FRESULT f_write_fast (
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}
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csize_bytes = fs->csize * SS(fs);
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DWORD csect = (UINT)((fp->fptr / SS(fs)) & (fs->csize - 1)); /* Sector offset in the cluster */
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/* If inside a cluster, write the sectors and align to cluster. */
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if (csect) {
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wbytes = MIN(btw, (fs->csize - csect) * SS(fs));
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f_write(fp, wbuff, wbytes, (void *)0);
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/* Ensure flushing of it. FatFS is not notified for next write if raw. */
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f_sync(fp);
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wbuff += wbytes;
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btw -= wbytes;
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if (!btw)
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goto out;
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}
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if (!fp->fptr) { /* On the top of the file? */
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clst = fp->obj.sclust; /* Follow from the origin */
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@ -4176,44 +4192,51 @@ FRESULT f_write_fast (
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}
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if (clst < 2) { EFSPRINTF("CCHK"); ABORT(fs, FR_INT_ERR); }
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else if (clst == 0xFFFFFFFF) { EFSPRINTF("DERR"); ABORT(fs, FR_DISK_ERR); }
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else if (clst == 0xFFFFFFFF) { EFSPRINTF("DSKC"); ABORT(fs, FR_DISK_ERR); }
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fp->clust = clst; /* Set working cluster */
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wbytes = MIN(btw, csize_bytes);
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sector_base = clst2sect(fs, fp->clust);
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count += fs->csize;
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btw -= csize_bytes;
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fp->fptr += csize_bytes;
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count = wbytes / SS(fs);
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fp->fptr += wbytes;
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btw -= wbytes;
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if (!btw) { /* Final cluster/sectors write. */
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if (disk_write(fs->pdrv, wbuff, sector_base, count) != RES_OK) ABORT(fs, FR_DISK_ERR);
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fp->flag &= (BYTE)~FA_DIRTY;
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goto out;
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}
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while (btw) {
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clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
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if (clst < 2) { EFSPRINTF("CCHK2"); ABORT(fs, FR_INT_ERR); }
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else if (clst == 0xFFFFFFFF) { EFSPRINTF("DERR"); ABORT(fs, FR_DISK_ERR); }
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else if (clst == 0xFFFFFFFF) { EFSPRINTF("DSKC"); ABORT(fs, FR_DISK_ERR); }
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fp->clust = clst;
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work_sector = clst2sect(fs, fp->clust);
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if ((work_sector - sector_base) == count) count += fs->csize;
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wbytes = MIN(btw, csize_bytes);
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if ((work_sector - sector_base) == count) count += wbytes / SS(fs);
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else {
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if (disk_write(fs->pdrv, wbuff, sector_base, count) != RES_OK) ABORT(fs, FR_DISK_ERR);
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wbuff += count * SS(fs);
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sector_base = work_sector;
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count = fs->csize;
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count = wbytes / SS(fs);
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}
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fp->fptr += MIN(btw, csize_bytes);
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btw -= MIN(btw, csize_bytes);
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fp->fptr += wbytes;
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btw -= wbytes;
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// what about if data is smaller than cluster?
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// Probably must read-write back that cluster.
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if (!btw) { /* Final cluster/sectors write. */
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if (disk_write(fs->pdrv, wbuff, sector_base, count) != RES_OK) ABORT(fs, FR_DISK_ERR);
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fp->flag &= (BYTE)~FA_DIRTY;
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}
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}
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out:
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fp->flag |= FA_MODIFIED; /* Set file change flag */
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LEAVE_FF(fs, FR_OK);
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@ -4689,19 +4712,17 @@ FRESULT f_lseek (
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DWORD *f_expand_cltbl (
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FIL* fp, /* Pointer to the file object */
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UINT tblsz, /* Size of table */
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DWORD *tbl, /* Table pointer */
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FSIZE_t ofs /* File pointer from top of file */
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)
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{
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if (fp->flag & FA_WRITE) f_lseek(fp, ofs); /* Expand file if write is enabled */
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if (!fp->cltbl) { /* Allocate memory for cluster link table */
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fp->cltbl = (DWORD *)ff_memalloc(tblsz);
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fp->cltbl = (DWORD *)tbl;
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fp->cltbl[0] = tblsz;
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}
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if (f_lseek(fp, CREATE_LINKMAP)) { /* Create cluster link table */
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ff_memfree(fp->cltbl);
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fp->cltbl = NULL;
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fp->cltbl = (void *)0;
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EFSPRINTF("CLTBLSZ");
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return NULL;
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return (void *)0;
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}
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f_lseek(fp, 0);
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@ -5842,7 +5863,7 @@ FRESULT f_mkfs (
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UINT len /* Size of working buffer [byte] */
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)
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{
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const UINT n_fats = 2; /* Number of FATs for FAT/FAT32 volume (1 or 2) */
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const UINT n_fats = 1; /* Number of FATs for FAT/FAT32 volume (1 or 2) */
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const UINT n_rootdir = 512; /* Number of root directory entries for FAT volume */
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static const WORD cst[] = {1, 4, 16, 64, 256, 512, 0}; /* Cluster size boundary for FAT volume (4Ks unit) */
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static const WORD cst32[] = {1, 2, 4, 8, 16, 32, 0}; /* Cluster size boundary for FAT32 volume (128Ks unit) */
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@ -5906,7 +5927,7 @@ FRESULT f_mkfs (
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} else {
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/* Create a single-partition in this function */
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if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_vol) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);
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b_vol = (opt & FM_SFD) ? 0 : 32768; /* Volume start sector. Align to 16MB */
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b_vol = (opt & FM_SFD) ? 0 : 63; /* Volume start sector */
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if (sz_vol < b_vol) LEAVE_MKFS(FR_MKFS_ABORTED);
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sz_vol -= b_vol; /* Volume size */
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}
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@ -6130,9 +6151,6 @@ FRESULT f_mkfs (
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if (fmt == FS_FAT32) { /* FAT32: Move FAT base */
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sz_rsv += n; b_fat += n;
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} else { /* FAT: Expand FAT size */
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if (n % n_fats) { /* Adjust fractional error if needed */
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n--; sz_rsv++; b_fat++;
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}
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sz_fat += n / n_fats;
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}
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@ -6196,13 +6214,13 @@ FRESULT f_mkfs (
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st_word(buf + BPB_BkBootSec32, 6); /* Offset of backup VBR (VBR + 6) */
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buf[BS_DrvNum32] = 0x80; /* Drive number (for int13) */
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buf[BS_BootSig32] = 0x29; /* Extended boot signature */
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mem_cpy(buf + BS_VolLab32, "SWITCH SD " "FAT32 ", 19); /* Volume label, FAT signature */
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mem_cpy(buf + BS_VolLab32, "NO NAME " "FAT32 ", 19); /* Volume label, FAT signature */
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} else {
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st_dword(buf + BS_VolID, GET_FATTIME()); /* VSN */
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st_word(buf + BPB_FATSz16, (WORD)sz_fat); /* FAT size [sector] */
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buf[BS_DrvNum] = 0x80; /* Drive number (for int13) */
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buf[BS_BootSig] = 0x29; /* Extended boot signature */
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mem_cpy(buf + BS_VolLab, "SWITCH SD " "FAT ", 19); /* Volume label, FAT signature */
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mem_cpy(buf + BS_VolLab, "NO NAME " "FAT ", 19); /* Volume label, FAT signature */
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}
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st_word(buf + BS_55AA, 0xAA55); /* Signature (offset is fixed here regardless of sector size) */
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if (disk_write(pdrv, buf, b_vol, 1) != RES_OK) LEAVE_MKFS(FR_DISK_ERR); /* Write it to the VBR sector */
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@ -289,7 +289,7 @@ FRESULT f_getlabel (const TCHAR* path, TCHAR* label, DWORD* vsn); /* Get volume
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FRESULT f_setlabel (const TCHAR* label); /* Set volume label */
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FRESULT f_forward (FIL* fp, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf); /* Forward data to the stream */
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#ifdef FF_FASTFS
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DWORD *f_expand_cltbl (FIL* fp, UINT tblsz, FSIZE_t ofs); /* Expand file and populate cluster table */
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DWORD *f_expand_cltbl (FIL* fp, UINT tblsz, DWORD *tbl, FSIZE_t ofs); /* Expand file and populate cluster table */
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#endif
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FRESULT f_expand (FIL* fp, FSIZE_t fsz, BYTE opt); /* Allocate a contiguous block to the file */
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FRESULT f_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */
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