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fatfs: Add raw emuMMC support for USER partition

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CTCaer 2021-02-06 17:11:32 +02:00
parent f3f1d4d4f0
commit e5689cfe57
4 changed files with 26 additions and 4 deletions
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3
bdk/libs/fatfs/diskio.h
View file

@ -27,7 +27,8 @@ typedef enum {
DRIVE_SD = 0,
DRIVE_RAM = 1,
DRIVE_EMMC = 2,
DRIVE_BIS = 3
DRIVE_BIS = 3,
DRIVE_EMU = 4
} DDRIVE;

22
nyx/nyx_gui/libs/fatfs/diskio.c
View file

@ -18,6 +18,8 @@
static u32 sd_rsvd_sectors = 0;
static u32 ramdisk_sectors = 0;
static u32 emummc_sectors = 0;
/*-----------------------------------------------------------------------*/
/* Get Drive Status */
/*-----------------------------------------------------------------------*/
@ -57,7 +59,8 @@ DRESULT disk_read (
case DRIVE_EMMC:
return sdmmc_storage_read(&emmc_storage, sector, count, (void *)buff) ? RES_OK : RES_ERROR;
case DRIVE_BIS:
return nx_emmc_bis_read(sector, count, (void *)buff);
case DRIVE_EMU:
return nx_emmc_bis_read(sector, count, (void *)buff) ? RES_OK : RES_ERROR;
}
return RES_ERROR;
@ -82,6 +85,8 @@ DRESULT disk_write (
case DRIVE_EMMC:
case DRIVE_BIS:
return RES_WRPRT;
case DRIVE_EMU:
return nx_emmc_bis_write(sector, count, (void *)buff) ? RES_OK : RES_ERROR;
}
return RES_ERROR;
@ -122,6 +127,18 @@ DRESULT disk_ioctl (
break;
}
}
else if (pdrv == DRIVE_EMU)
{
switch (cmd)
{
case GET_SECTOR_COUNT:
*buf = emummc_sectors;
break;
case GET_BLOCK_SIZE:
*buf = 32768; // Align to 16MB.
break;
}
}
return RES_OK;
}
@ -144,6 +161,9 @@ DRESULT disk_set_info (
case DRIVE_RAM:
ramdisk_sectors = *buf;
break;
case DRIVE_EMU:
emummc_sectors = *buf;
break;
}
}

4
nyx/nyx_gui/libs/fatfs/ffconf.h
View file

@ -179,13 +179,13 @@
/ Drive/Volume Configurations
/---------------------------------------------------------------------------*/
#define FF_VOLUMES 4
#define FF_VOLUMES 5
/* Number of volumes (logical drives) to be used. (1-10) */
#define FF_STR_VOLUME_ID 1
// Order is important. Any change to order, must also be reflected to diskio drive enum.
#define FF_VOLUME_STRS "sd","ram","emmc","bis"
#define FF_VOLUME_STRS "sd","ram","emmc","bis","emu"
/* FF_STR_VOLUME_ID switches support for volume ID in arbitrary strings.
/ When FF_STR_VOLUME_ID is set to 1 or 2, arbitrary strings can be used as drive
/ number in the path name. FF_VOLUME_STRS defines the volume ID strings for each

1
nyx/nyx_gui/storage/nx_emmc_bis.h
View file

@ -224,6 +224,7 @@ typedef struct _nx_emmc_cal0_t
} __attribute__((packed)) nx_emmc_cal0_t;
int nx_emmc_bis_read(u32 sector, u32 count, void *buff);
int nx_emmc_bis_write(u32 sector, u32 count, void *buff);
void nx_emmc_bis_init(emmc_part_t *part, bool enable_cache, u32 emummc_offset);
void nx_emmc_bis_end();