mirror of
https://github.com/DarkMatterCore/nxdumptool.git
synced 2025-01-25 02:33:13 -03:00
117 lines
3.9 KiB
C
117 lines
3.9 KiB
C
/*-----------------------------------------------------------------------*/
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/* Low level disk I/O module SKELETON for FatFs (C)ChaN, 2019 */
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/*-----------------------------------------------------------------------*/
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/* If a working storage control module is available, it should be */
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/* attached to the FatFs via a glue function rather than modifying it. */
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/* This is an example of glue functions to attach various exsisting */
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/* storage control modules to the FatFs module with a defined API. */
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/*-----------------------------------------------------------------------*/
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#include <core/nxdt_utils.h>
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#include <core/bis_storage.h>
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#include <core/devoptab/fatfs/ff.h> /* Obtains integer types */
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#include <core/devoptab/fatfs/diskio.h> /* Declarations of disk functions */
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/*-----------------------------------------------------------------------*/
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/* Get Drive Status */
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/*-----------------------------------------------------------------------*/
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DSTATUS disk_status (
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BYTE pdrv /* Physical drive number to identify the drive */
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)
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{
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NX_IGNORE_ARG(pdrv);
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return 0;
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}
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/*-----------------------------------------------------------------------*/
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/* Inidialize a Drive */
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/*-----------------------------------------------------------------------*/
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DSTATUS disk_initialize (
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BYTE pdrv /* Physical drive number to identify the drive */
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)
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{
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NX_IGNORE_ARG(pdrv);
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return 0;
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}
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/*-----------------------------------------------------------------------*/
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/* Read Sector(s) */
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/*-----------------------------------------------------------------------*/
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DRESULT disk_read (
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BYTE pdrv, /* Physical drive number to identify the drive */
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BYTE *buff, /* Data buffer to store read data */
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LBA_t sector, /* Start sector in LBA */
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UINT count /* Number of sectors to read */
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)
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{
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FsStorage *bis_storage = NULL;
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u64 offset = 0, size = 0;
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Result rc = 0;
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DRESULT ret = RES_PARERR;
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bisStorageControlMutex(true);
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/* Get pointer to FsStorage object. */
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bis_storage = bisStorageGetFsStorageByFatFsDriveNumber(pdrv);
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if (!bis_storage)
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{
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LOG_MSG_ERROR("Failed to retrieve FsStorage object for drive number %u!", pdrv);
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goto end;
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}
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/* Calculate data offset and size. */
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offset = ((u64)FF_MAX_SS * (u64)sector);
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size = ((u64)FF_MAX_SS * (u64)count);
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/* Read BIS storage. */
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rc = fsStorageRead(bis_storage, (s64)offset, buff, size);
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ret = (R_SUCCEEDED(rc) ? RES_OK : RES_ERROR);
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if (ret == RES_ERROR) LOG_MSG_ERROR("Failed to read 0x%lX-byte long block at offset 0x%lX from drive number %u!", offset, size, pdrv);
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end:
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bisStorageControlMutex(false);
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return ret;
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}
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/*-----------------------------------------------------------------------*/
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/* Write Sector(s) */
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/*-----------------------------------------------------------------------*/
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#if FF_FS_READONLY == 0
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DRESULT disk_write (
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BYTE pdrv, /* Physical drive number to identify the drive */
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const BYTE *buff, /* Data to be written */
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LBA_t sector, /* Start sector in LBA */
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UINT count /* Number of sectors to write */
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)
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{
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NX_IGNORE_ARG(pdrv);
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NX_IGNORE_ARG(buff);
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NX_IGNORE_ARG(sector);
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NX_IGNORE_ARG(count);
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return RES_OK;
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}
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#endif
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/*-----------------------------------------------------------------------*/
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/* Miscellaneous Functions */
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/*-----------------------------------------------------------------------*/
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DRESULT disk_ioctl (
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BYTE pdrv, /* Physical drive nmuber (0..) */
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BYTE cmd, /* Control code */
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void *buff /* Buffer to send/receive control data */
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)
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{
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NX_IGNORE_ARG(pdrv);
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NX_IGNORE_ARG(cmd);
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NX_IGNORE_ARG(buff);
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return RES_OK;
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}
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