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bdk: fatfs: mkfs alignment changes

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- Default data alignment is now 1MB **when it's not set**
- Default volume alignment is now based on data alignment and not hardcoded to 16MB.
- Change max allowed alignment to 64MB.

The above changes allow selecting alignments for volume and data between 1MB and 64MB.
(From the previous 1 to 16MB for data and 16MB for volume).
This commit is contained in:
CTCaer 2022-05-16 13:33:38 +03:00
parent fb45804adf
commit e09710e3eb
1 changed files with 2 additions and 2 deletions
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4
bdk/libs/fatfs/ff.c
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@ -5879,7 +5879,7 @@ FRESULT f_mkfs (
stat = disk_initialize(pdrv);
if (stat & STA_NOINIT) return FR_NOT_READY;
if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;
if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &sz_blk) != RES_OK || !sz_blk || sz_blk > 32768 || (sz_blk & (sz_blk - 1))) sz_blk = 1; /* Erase block to align data area */
if (disk_ioctl(pdrv, GET_BLOCK_SIZE, &sz_blk) != RES_OK || !sz_blk || sz_blk > 131072 || (sz_blk & (sz_blk - 1))) sz_blk = 2048; /* Erase block to align data area. 1MB minimum */
#if FF_MAX_SS != FF_MIN_SS /* Get sector size of the medium if variable sector size cfg. */
if (disk_ioctl(pdrv, GET_SECTOR_SIZE, &ss) != RES_OK) return FR_DISK_ERR;
if (ss > FF_MAX_SS || ss < FF_MIN_SS || (ss & (ss - 1))) return FR_DISK_ERR;
@ -5915,7 +5915,7 @@ FRESULT f_mkfs (
} else {
/* Create a single-partition in this function */
if (disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_vol) != RES_OK) LEAVE_MKFS(FR_DISK_ERR);
b_vol = (opt & FM_SFD) ? 0 : 32768; /* Volume start sector. Align to 16MB */
b_vol = (opt & FM_SFD) ? 0 : sz_blk; /* Volume start sector */
if (sz_vol < b_vol) LEAVE_MKFS(FR_MKFS_ABORTED);
sz_vol -= b_vol; /* Volume size */
}