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/* -------------------------------------------
Copyright (C) 2025, Amlal El Mahrouss, licensed under the Apache 2.0 license.
FILE: DiskImage+EPM.cc
PURPOSE: Disk Imaging framework.
------------------------------------------- */
#include <DiskImage.fwrk/headers/DiskImage.h>
#include <FSKit/NeFS.h>
#include <FirmwareKit/EPM.h>
/// @brief EPM format disk
/// @param img disk image structure.
/// @return Status code upon completion.
SInt32 DI::DIFormatPartitionEPM(struct DI_DISK_IMAGE& img) noexcept {
if (!img.sector_sz || (img.sector_sz % 512 != 0)) return kDIFailureStatus;
if (!img.fs_version) return kDIFailureStatus;
if (*img.out_name == 0 || *img.disk_name == 0) return kDIFailureStatus;
struct ::EPM_PART_BLOCK block {};
block.NumBlocks = img.block_cnt;
block.SectorSz = img.sector_sz;
block.Version = kEPMRevisionBcd;
block.LbaStart = sizeof(struct ::EPM_PART_BLOCK);
block.LbaEnd = img.disk_sz - block.LbaStart;
block.FsVersion = img.fs_version;
::MmCopyMemory(block.Name, (VoidPtr) img.disk_name, ::MmStrLen(img.disk_name));
::MmCopyMemory(block.Magic, (VoidPtr) kEPMMagic, ::MmStrLen(kEPMMagic));
IORef handle = IoOpenFile(img.out_name, nullptr);
if (!handle) return kDIFailureStatus;
::IoWriteFile(handle, (Char*) &block, sizeof(struct ::EPM_PART_BLOCK));
::IoCloseFile(handle);
handle = nullptr;
return kDISuccessStatus;
}
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