mirror of
https://github.com/ekeeke/Genesis-Plus-GX.git
synced 2024-11-05 18:35:07 +01:00
161 lines
3.6 KiB
C
161 lines
3.6 KiB
C
/*
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* Wii DVD interface API
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* Copyright (C) 2008 Jeff Epler <jepler@unpythonic.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifdef WII_DVD
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#include <ogc/ipc.h>
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#include <string.h>
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#include <ogc/system.h>
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#include "wdvd.h"
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static int di_fd = -1;
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static s32 di_hid = 0;
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#include <stdio.h>
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#define DEBUG
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#ifdef DEBUG
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#define debug_printf printf
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#define debug_wait printf
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#else
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#define debug_printf(...) ;
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#define debug_wait(...) ;
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#endif
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bool WDVD_Init()
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{
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if(di_fd >= 0) return 1;
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di_fd = IOS_Open("/dev/do", 0);
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if(di_fd < 0) {
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debug_printf("IOS_Open(/dev/di) failed with code %d\n", di_fd);
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return 0;
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}
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di_hid = iosCreateHeap(0x10000);
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if(!di_hid) {
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IOS_Close(di_fd);
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di_fd = -1;
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debug_printf("iosCreateHeap(0x20) failed with code %d\n", di_hid);
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return 0;
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}
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debug_printf("fd=%d hid=%d\n", di_fd, di_hid);
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return 1;
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}
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bool WDVD_Reset()
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{
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bool result = false;
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char *inbuf = (char*)iosAlloc(di_hid, 0x20);
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char *outbuf = (char*)iosAlloc(di_hid, 0x20);
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if(!inbuf || !outbuf)
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goto out;
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((u32*)inbuf)[0x00] = 0x8A000000;
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((u32*)inbuf)[0x01] = 1;
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result = IOS_Ioctl( di_fd, 0x8A, inbuf, 0x20, outbuf, 0x20);
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out:
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if(outbuf) iosFree(di_hid, outbuf);
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if(inbuf) iosFree(di_hid, inbuf);
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return result;
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}
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#define max(a,b) ((a) > (b) ? (a) : (b))
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unsigned char* ios_command = 0;
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unsigned char* ios_out = 0;
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unsigned int ios_outlen = 0;
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void WDVD_AllocCommand()
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{
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if (ios_command == 0)
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ios_command = (unsigned char*)iosAlloc(di_hid, 0x20);
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}
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void WDVD_AllocOutput(unsigned int length)
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{
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if (ios_out == 0 || ios_outlen != length)
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{
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if (ios_out)
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iosFree(di_hid, ios_out);
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ios_out = (unsigned char*)iosAlloc(di_hid, max(length, 0x20));
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ios_outlen = length;
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}
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}
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int WDVD_LowUnencryptedRead(unsigned char **poutbuf, u32 len, u32 offset)
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{
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WDVD_AllocCommand();
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WDVD_AllocOutput(len);
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unsigned char* inbuf = ios_command;
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unsigned char* outbuf = ios_out;
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*poutbuf = ios_out;
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int result = 0;
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if(!inbuf || !outbuf) { result = -1; goto out; }
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((u32*)inbuf)[0] = 0x8d000000;
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((u32*)inbuf)[1] = len;
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((u32*)inbuf)[2] = offset;
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// memset(outbuf, 0x00, len);
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result = IOS_Ioctl(di_fd, 0x8d, inbuf, 0x20, outbuf, len);
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if (result != 1)
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debug_printf("-> %d\n", result);
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// if(result >= 0) {
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// memcpy(buf, outbuf, len);
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// }
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out:
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//if(outbuf) iosFree(di_hid, outbuf);
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//if(inbuf) iosFree(di_hid, inbuf);
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return result;
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}
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int WDVD_LowReadDiskId(u64 *id)
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{
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int result;
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char *inbuf = (char*)iosAlloc(di_hid, 0x20);
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char *outbuf = (char*)iosAlloc(di_hid, 0x20);
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if(!inbuf || !outbuf) { result = -1; goto out; }
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((u32*)inbuf)[0] = 0x70000000;
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*(u64*)outbuf = 0;
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result = IOS_Ioctl(di_fd, 0x8D, inbuf, 0x20, outbuf, 0x20);
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*id = *(u64*) outbuf;
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out:
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if(inbuf) iosFree(di_hid, inbuf);
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if(outbuf) iosFree(di_hid, outbuf);
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return result;
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}
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#endif
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