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nxdumptool/source/fatfs/diskio.c
Pablo Curiel f82d7a3db4 Small code refactor (part 2).
* Rewrote mutex handling throughout the code to use a small, macro-based scoped lock implementation.

* Removed extern variables from common.h - launch path management is now completely handled in utils.c.

* Updated NpdmSystemCallId_Count to reflect changes introduced in 12.0.0.

* Added NcaMainSignatureKeyGeneration enum.

* NCA main signature moduli are now retrieved from FS .rodata at runtime.

* Simplified lock management in usb.c by using a single global mutex with scoped locks instead of three different r/w locks.

* Updated FatFs to R0.14b.

* Enabled 64-bit LBA support in FatFs to potentially support custom eMMC replacements / resized USER partitions in the future.

* Updated LZ4 to v1.9.3.

* Fixed typos.

* USB gamecard dumper PoC now only dumps the Initial Data area.

* Updated to-do list.
2021-05-18 08:32:43 -04:00

99 lines
3.2 KiB
C

/*-----------------------------------------------------------------------*/
/* Low level disk I/O module SKELETON for FatFs (C)ChaN, 2019 */
/*-----------------------------------------------------------------------*/
/* If a working storage control module is available, it should be */
/* attached to the FatFs via a glue function rather than modifying it. */
/* This is an example of glue functions to attach various exsisting */
/* storage control modules to the FatFs module with a defined API. */
/*-----------------------------------------------------------------------*/
#include "ff.h" /* Obtains integer types */
#include "diskio.h" /* Declarations of disk functions */
#include <switch.h>
#include "nxdt_utils.h"
/*-----------------------------------------------------------------------*/
/* Get Drive Status */
/*-----------------------------------------------------------------------*/
DSTATUS disk_status (
BYTE pdrv /* Physical drive number to identify the drive */
)
{
(void)pdrv;
return 0;
}
/*-----------------------------------------------------------------------*/
/* Inidialize a Drive */
/*-----------------------------------------------------------------------*/
DSTATUS disk_initialize (
BYTE pdrv /* Physical drive number to identify the drive */
)
{
(void)pdrv;
return 0;
}
/*-----------------------------------------------------------------------*/
/* Read Sector(s) */
/*-----------------------------------------------------------------------*/
DRESULT disk_read (
BYTE pdrv, /* Physical drive number to identify the drive */
BYTE *buff, /* Data buffer to store read data */
LBA_t sector, /* Start sector in LBA */
UINT count /* Number of sectors to read */
)
{
(void)pdrv;
Result rc = 0;
u64 start_offset = ((u64)FF_MAX_SS * (u64)sector);
u64 read_size = ((u64)FF_MAX_SS * (u64)count);
rc = fsStorageRead(utilsGetEmmcBisSystemPartitionStorage(), start_offset, buff, read_size);
return (R_SUCCEEDED(rc) ? RES_OK : RES_ERROR);
}
/*-----------------------------------------------------------------------*/
/* Write Sector(s) */
/*-----------------------------------------------------------------------*/
#if FF_FS_READONLY == 0
DRESULT disk_write (
BYTE pdrv, /* Physical drive number to identify the drive */
const BYTE *buff, /* Data to be written */
LBA_t sector, /* Start sector in LBA */
UINT count /* Number of sectors to write */
)
{
(void)pdrv;
(void)buff;
(void)sector;
(void)count;
return RES_OK;
}
#endif
/*-----------------------------------------------------------------------*/
/* Miscellaneous Functions */
/*-----------------------------------------------------------------------*/
DRESULT disk_ioctl (
BYTE pdrv, /* Physical drive nmuber (0..) */
BYTE cmd, /* Control code */
void *buff /* Buffer to send/receive control data */
)
{
(void)pdrv;
(void)cmd;
(void)buff;
return RES_OK;
}