s32 WDVD_FindPartition( u64 *outbuf )
{
//gprintf( "%s %i\n", __FILE__, __LINE__ );
u64 offset = 0, table_offset = 0;
u32 cnt, nb_partitions;
s32 ret;
//u32 *buffer = NULL;
//gprintf( "%s %i\n", __FILE__, __LINE__ );
//buffer = (u32 *)memalign(32, 0x20);
//if (!buffer)
// return -1;
//gprintf( "%s %i\n", __FILE__, __LINE__ );
ret = WDVD_UnencryptedRead( wdvd_buffer, 0x20, PTABLE_OFFSET );
if (ret < 0)
{
//free( buffer );
return ret;
}
nb_partitions = wdvd_buffer[0];
table_offset = wdvd_buffer[1] << 2;
//gprintf( "%s %i\n", __FILE__, __LINE__ );
ret = WDVD_UnencryptedRead( wdvd_buffer, 0x20, table_offset );
if (ret < 0)
{
// free( buffer );
return ret;
}
//gprintf( "%s %i\n", __FILE__, __LINE__ );
for (cnt = 0; cnt < nb_partitions; cnt++) {
u32 type = wdvd_buffer[cnt * 2 + 1];
if (!type)
{
offset = wdvd_buffer[cnt * 2] << 2;
break;
}
}
//gprintf( "%s %i\n", __FILE__, __LINE__ );
//free( buffer );
if (!offset)
return -1;
//gprintf( "%s %i\n", __FILE__, __LINE__ );
*outbuf = offset;
return 0;
}
s32 __WBFS_ReadDVD(void *fp, u32 lba, u32 len, void *iobuf)
{
void *buffer = NULL;
u64 offset;
u32 mod, size;
s32 ret;
/* Calculate offset */
offset = ((u64)lba) << 2;
/* Calcualte sizes */
mod = len % 32;
size = len - mod;
/* Read aligned data */
if (size) {
ret = WDVD_UnencryptedRead(iobuf, size, offset);
if (ret < 0)
goto out;
}
/* Read non-aligned data */
if (mod) {
/* Allocate memory */
buffer = memalign(32, 0x20);
if (!buffer)
return -1;
/* Read data */
ret = WDVD_UnencryptedRead(buffer, 0x20, offset + size);
if (ret < 0)
goto out;
/* Copy data */
memcpy(iobuf + size, buffer, mod);
}
/* Success */
ret = 0;
out:
/* Free memory */
if (buffer)
free(buffer);
return ret;
}
s32 Multidisc_GetEntries(struct wiigame **outbuf, u32 *outlen)
{
struct wiigame *gameBuffer = NULL;
u32 cnt;
s32 ret;
/* Read disc header */
ret = WDVD_UnencryptedRead(buffer, sizeof(buffer), 0);
if (ret < 0)
return ret;
/* Check disc ID */
if (buffer[0] != MAGIC_WORD)
return -1;
/* Number of entries */
cnt = buffer[1];
/* Entries found */
if (cnt) {
u32 len = sizeof(struct wiigame) * cnt;
/* Allocate memory */
gameBuffer = (struct wiigame *)memalign(32, len);
if (!gameBuffer)
return -2;
/* Read entries */
ret = WDVD_UnencryptedRead(gameBuffer, len, 8);
if (ret < 0)
goto err;
} else
return -3;
/* Set values */
*outbuf = gameBuffer;
*outlen = cnt;
return 0;
err:
/* Free memory */
if (gameBuffer)
free(gameBuffer);
return ret;
}
s32 __Disc_FindPartition(u64 *outbuf)
{
u64 offset = 0, table_offset = 0;
u32 cnt, nb_partitions;
s32 ret;
/* Read partition info */
ret = WDVD_UnencryptedRead(buffer, 0x20, PTABLE_OFFSET);
if (ret < 0) {
return ret;
}
/* Get data */
nb_partitions = buffer[0];
table_offset = buffer[1] << 2;
if (nb_partitions > 8) {
return -1;
}
/* Read partition table */
ret = WDVD_UnencryptedRead(buffer, 0x20, table_offset);
if (ret < 0) {
return ret;
}
/* Find game partition */
for (cnt = 0; cnt < nb_partitions; cnt++) {
u32 type = buffer[cnt * 2 + 1];
/* Game partition */
if(!type)
offset = buffer[cnt * 2] << 2;
}
/* No game partition found */
if (!offset) {
gprintf("No game offset partition found\n");
return -1;
}
/* Set output buffer */
*outbuf = offset;
WDVD_Seek(offset);
return 0;
}
s32 Disc_ReadGCHeader(void *outbuf)
{
/* Read GC disc header */
return WDVD_UnencryptedRead(outbuf, sizeof(struct gc_discHdr), 0);
}
