mirror of
https://github.com/wiidev/usbloadergx.git
synced 2024-09-09 00:53:19 +02:00
![e.bovendeur](/assets/img/avatar_default.png)
* Updated to Hermes usb storage code * Fixed some bugs in ntfs while writing timestamps, resulting in different hashes (dimok) * Fixed codedump when switching partitions (issue 1454) * Fixed graphical glitch on 4:3 screens, where the prefetch cover was visible in the coverwall * Fixed a bug with installing games, due to the switch to C++ (dimok)
170 lines
3.6 KiB
C
170 lines
3.6 KiB
C
#include <ogcsys.h>
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#include <malloc.h>
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#include <string.h>
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#include "usbloader/sdhc.h"
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#include "usbloader/usbstorage2.h"
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#include "usbloader/wdvd.h"
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#include "wbfs_rw.h"
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/* Constants */
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#define MAX_NB_SECTORS 32
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u32 sector_size = 512;
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rw_sector_callback_t readCallback = NULL;
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rw_sector_callback_t writeCallback = NULL;
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void SetSectorSize(u32 size)
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{
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sector_size = size;
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}
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s32 __ReadDVD(void *fp, u32 lba, u32 len, void *iobuf) {
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void *buffer = NULL;
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u64 offset;
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u32 mod, size;
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s32 ret;
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/* Calculate offset */
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offset = ((u64)lba) << 2;
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/* Calcualte sizes */
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mod = len % 32;
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size = len - mod;
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/* Read aligned data */
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if (size) {
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ret = WDVD_UnencryptedRead(iobuf, size, offset);
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if (ret < 0)
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goto out;
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}
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/* Read non-aligned data */
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if (mod) {
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/* Allocate memory */
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buffer = memalign(32, 0x20);
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if (!buffer)
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return -1;
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/* Read data */
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ret = WDVD_UnencryptedRead(buffer, 0x20, offset + size);
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if (ret < 0)
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goto out;
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/* Copy data */
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void *ptr = ((u8 *) iobuf) + size;
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memcpy(ptr, buffer, mod);
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}
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/* Success */
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ret = 0;
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out:
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/* Free memory */
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if (buffer)
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free(buffer);
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return ret;
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}
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s32 __ReadUSB(void *fp, u32 lba, u32 count, void *iobuf) {
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u32 cnt = 0;
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s32 ret;
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/* Do reads */
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while (cnt < count) {
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void *ptr = ((u8 *)iobuf) + (cnt * sector_size);
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u32 sectors = (count - cnt);
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/* Read sectors is too big */
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if (sectors > MAX_NB_SECTORS)
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sectors = MAX_NB_SECTORS;
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/* USB read */
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ret = USBStorage2_ReadSectors(lba + cnt, sectors, ptr);
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if (ret < 0)
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return ret;
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/* Increment counter */
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cnt += sectors;
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}
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return 0;
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}
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s32 __WriteUSB(void *fp, u32 lba, u32 count, void *iobuf) {
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u32 cnt = 0;
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s32 ret;
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/* Do writes */
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while (cnt < count) {
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void *ptr = ((u8 *)iobuf) + (cnt * sector_size);
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u32 sectors = (count - cnt);
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/* Write sectors is too big */
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if (sectors > MAX_NB_SECTORS)
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sectors = MAX_NB_SECTORS;
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/* USB write */
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ret = USBStorage2_WriteSectors(lba + cnt, sectors, ptr);
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if (ret < 0)
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return ret;
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/* Increment counter */
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cnt += sectors;
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}
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return 0;
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}
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s32 __ReadSDHC(void *fp, u32 lba, u32 count, void *iobuf) {
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u32 cnt = 0;
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s32 ret;
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/* Do reads */
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while (cnt < count) {
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void *ptr = ((u8 *)iobuf) + (cnt * sector_size);
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u32 sectors = (count - cnt);
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/* Read sectors is too big */
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if (sectors > MAX_NB_SECTORS)
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sectors = MAX_NB_SECTORS;
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/* SDHC read */
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ret = SDHC_ReadSectors(lba + cnt, sectors, ptr);
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if (!ret)
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return -1;
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/* Increment counter */
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cnt += sectors;
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}
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return 0;
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}
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s32 __WriteSDHC(void *fp, u32 lba, u32 count, void *iobuf) {
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u32 cnt = 0;
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s32 ret;
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/* Do writes */
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while (cnt < count) {
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void *ptr = ((u8 *)iobuf) + (cnt * sector_size);
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u32 sectors = (count - cnt);
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/* Write sectors is too big */
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if (sectors > MAX_NB_SECTORS)
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sectors = MAX_NB_SECTORS;
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/* SDHC write */
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ret = SDHC_WriteSectors(lba + cnt, sectors, ptr);
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if (!ret)
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return -1;
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/* Increment counter */
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cnt += sectors;
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}
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return 0;
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}
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