STATIC UINT8 g_sector_buf[2048];
STATIC EFI_BLOCK_READ g_sector_2048_read = NULL;
+STATIC EFI_BLOCK_WRITE g_sector_2048_write = NULL;
BOOLEAN ventoy_is_cdrom_dp_exist(VOID)
{
{
MapLba = (Sector - pchunk->img_start_sector) * 4 + pchunk->disk_start_sector;
}
- else
+ else if (g_chain->disk_sector_size == 1024)
+ {
+ MapLba = (Sector - pchunk->img_start_sector) * 2 + pchunk->disk_start_sector;
+ }
+ else if (g_chain->disk_sector_size == 2048)
+ {
+ MapLba = (Sector - pchunk->img_start_sector) + pchunk->disk_start_sector;
+ }
+ else if (g_chain->disk_sector_size == 4096)
{
- MapLba = (Sector - pchunk->img_start_sector) * 2048 / g_chain->disk_sector_size + pchunk->disk_start_sector;
+ MapLba = ((Sector - pchunk->img_start_sector) >> 1) + pchunk->disk_start_sector;
}
+
secLeft = pchunk->img_end_sector + 1 - Sector;
secRead = (Count < secLeft) ? Count : secLeft;
return EFI_SUCCESS;
}
+STATIC EFI_STATUS EFIAPI ventoy_write_iso_sector
+(
+ IN UINT64 Sector,
+ IN UINTN Count,
+ IN VOID *Buffer
+)
+{
+ EFI_STATUS Status = EFI_SUCCESS;
+ EFI_LBA MapLba = 0;
+ UINT32 i = 0;
+ UINTN secLeft = 0;
+ UINTN secRead = 0;
+ UINT64 ReadStart = 0;
+ UINT64 ReadEnd = 0;
+ UINT8 *pCurBuf = (UINT8 *)Buffer;
+ ventoy_img_chunk *pchunk = g_chunk;
+ EFI_BLOCK_IO_PROTOCOL *pRawBlockIo = gBlockData.pRawBlockIo;
+
+ debug("write iso sector %lu count %u", Sector, Count);
+
+ ReadStart = Sector * 2048;
+ ReadEnd = (Sector + Count) * 2048;
+
+ for (i = 0; Count > 0 && i < g_img_chunk_num; i++, pchunk++)
+ {
+ if (Sector >= pchunk->img_start_sector && Sector <= pchunk->img_end_sector)
+ {
+ if (g_chain->disk_sector_size == 512)
+ {
+ MapLba = (Sector - pchunk->img_start_sector) * 4 + pchunk->disk_start_sector;
+ }
+ else if (g_chain->disk_sector_size == 1024)
+ {
+ MapLba = (Sector - pchunk->img_start_sector) * 2 + pchunk->disk_start_sector;
+ }
+ else if (g_chain->disk_sector_size == 2048)
+ {
+ MapLba = (Sector - pchunk->img_start_sector) + pchunk->disk_start_sector;
+ }
+ else if (g_chain->disk_sector_size == 4096)
+ {
+ MapLba = ((Sector - pchunk->img_start_sector) >> 1) + pchunk->disk_start_sector;
+ }
+
+
+ secLeft = pchunk->img_end_sector + 1 - Sector;
+ secRead = (Count < secLeft) ? Count : secLeft;
+
+ Status = pRawBlockIo->WriteBlocks(pRawBlockIo, pRawBlockIo->Media->MediaId,
+ MapLba, secRead * 2048, pCurBuf);
+ if (EFI_ERROR(Status))
+ {
+ debug("Raw disk write block failed %r LBA:%lu Count:%u", Status, MapLba, secRead);
+ return Status;
+ }
+
+ Count -= secRead;
+ Sector += secRead;
+ pCurBuf += secRead * 2048;
+ }
+ }
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS EFIAPI ventoy_block_io_ramdisk_write
+(
+ IN EFI_BLOCK_IO_PROTOCOL *This,
+ IN UINT32 MediaId,
+ IN EFI_LBA Lba,
+ IN UINTN BufferSize,
+ IN VOID *Buffer
+)
+{
+ (VOID)This;
+ (VOID)MediaId;
+ (VOID)Lba;
+ (VOID)BufferSize;
+ (VOID)Buffer;
+
+ if (!gSector512Mode)
+ {
+ return EFI_WRITE_PROTECTED;
+ }
+
+ CopyMem(g_iso_data_buf + (Lba * 2048), Buffer, BufferSize);
+
+ return EFI_SUCCESS;
+}
+
EFI_STATUS EFIAPI ventoy_block_io_ramdisk_read
(
IN EFI_BLOCK_IO_PROTOCOL *This,
IN VOID *Buffer
)
{
+ UINT32 secNum = 0;
+ UINT64 offset = 0;
+
(VOID)This;
(VOID)MediaId;
- (VOID)Lba;
- (VOID)BufferSize;
- (VOID)Buffer;
- return EFI_WRITE_PROTECTED;
+
+ if (!gSector512Mode)
+ {
+ return EFI_WRITE_PROTECTED;
+ }
+
+ secNum = BufferSize / 2048;
+ offset = Lba * 2048;
+
+ return ventoy_write_iso_sector(Lba, secNum, Buffer);
}
EFI_STATUS EFIAPI ventoy_block_io_flush(IN EFI_BLOCK_IO_PROTOCOL *This)
return Status;
}
+EFI_STATUS EFIAPI ventoy_block_io_write_512
+(
+ IN EFI_BLOCK_IO_PROTOCOL *This,
+ IN UINT32 MediaId,
+ IN EFI_LBA Lba,
+ IN UINTN BufferSize,
+ IN VOID *Buffer
+)
+{
+ EFI_LBA Mod;
+ UINTN ReadSize;
+ UINT8 *CurBuf = NULL;
+ EFI_STATUS Status = EFI_SUCCESS;
+
+ debug("ventoy_block_io_write_512 %lu %lu\n", Lba, BufferSize / 512);
+
+ CurBuf = (UINT8 *)Buffer;
+
+ Mod = Lba % 4;
+ if (Mod > 0)
+ {
+ Status |= g_sector_2048_read(This, MediaId, Lba / 4, 2048, g_sector_buf);
+
+ if (BufferSize <= (4 - Mod) * 512)
+ {
+ CopyMem(g_sector_buf + Mod * 512, CurBuf, BufferSize);
+ return g_sector_2048_write(This, MediaId, Lba / 4, 2048, g_sector_buf);
+ }
+ else
+ {
+ ReadSize = (4 - Mod) * 512;
+ CopyMem(g_sector_buf + Mod * 512, CurBuf, ReadSize);
+ g_sector_2048_write(This, MediaId, Lba / 4, 2048, g_sector_buf);
+
+ CurBuf += ReadSize;
+ Lba += (4 - Mod);
+ BufferSize -= ReadSize;
+ }
+ }
+
+ if (BufferSize >= 2048)
+ {
+ ReadSize = BufferSize / 2048 * 2048;
+
+ Status |= g_sector_2048_write(This, MediaId, Lba / 4, ReadSize, CurBuf);
+ CurBuf += ReadSize;
+
+ Lba += ReadSize / 512;
+ BufferSize -= ReadSize;
+ }
+
+ if (BufferSize > 0)
+ {
+ Status |= g_sector_2048_read(This, MediaId, Lba / 4, 2048, g_sector_buf);
+
+ CopyMem(g_sector_buf, CurBuf, BufferSize);
+ g_sector_2048_write(This, MediaId, Lba / 4, 2048, g_sector_buf);
+ }
+
+ return Status;
+}
+
EFI_STATUS EFIAPI ventoy_install_blockio(IN EFI_HANDLE ImageHandle, IN UINT64 ImgSize)
{
EFI_STATUS Status = EFI_SUCCESS;
if (gSector512Mode)
{
g_sector_2048_read = gMemdiskMode ? ventoy_block_io_ramdisk_read : ventoy_block_io_read;
+ g_sector_2048_write = gMemdiskMode ? ventoy_block_io_ramdisk_write : ventoy_block_io_write;
pBlockIo->ReadBlocks = ventoy_block_io_read_512;
+ pBlockIo->WriteBlocks = ventoy_block_io_write_512;
}
else
{
pBlockIo->ReadBlocks = gMemdiskMode ? ventoy_block_io_ramdisk_read : ventoy_block_io_read;
+ pBlockIo->WriteBlocks = ventoy_block_io_write;
}
- pBlockIo->WriteBlocks = ventoy_block_io_write;
pBlockIo->FlushBlocks = ventoy_block_io_flush;
Status = gBS->InstallMultipleProtocolInterfaces(&gBlockData.Handle,
projects / Ventoy.git / blobdiff