+++ /dev/null
-/*
- * Copyright (c) 2010, Wei Mingzhi <whistler@openoffice.org>.
- * All Rights Reserved.
- *
- * Based on: Cdrom for Psemu Pro like Emulators
- * By: linuzappz <linuzappz@hotmail.com>
- *
- * Portions based on: cdrdao - write audio CD-Rs in disc-at-once mode
- * Copyright (C) 2007 Denis Leroy <denis@poolshark.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses>.
- */
-
-#if defined (__linux__) && !defined (USE_LIBCDIO)
-
-#include "cdr.h"
-
-static int cdHandle = -1;
-static int ReadMMC = 0, SubQMMC = 0;
-
-static int SendMMCCmd(const unsigned char *cmd, int cmdLen, const unsigned char *dataOut,
- int dataOutLen, unsigned char *dataIn, int dataInLen)
-{
- sg_io_hdr_t io_hdr;
-
- memset(&io_hdr, 0, sizeof(io_hdr));
-
- io_hdr.interface_id = 'S';
- io_hdr.cmd_len = cmdLen;
- io_hdr.cmdp = (unsigned char *)cmd;
- io_hdr.timeout = 10000;
- io_hdr.sbp = NULL;
- io_hdr.mx_sb_len = 0;
- io_hdr.flags = 1;
-
- if (dataOut != NULL) {
- io_hdr.dxferp = (void *)dataOut;
- io_hdr.dxfer_len = dataOutLen;
- io_hdr.dxfer_direction = SG_DXFER_TO_DEV;
- } else if (dataIn != NULL) {
- io_hdr.dxferp = (void *)dataIn;
- io_hdr.dxfer_len = dataInLen;
- io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
- }
-
- if (ioctl(cdHandle, SG_IO, &io_hdr) < 0) {
- return -1;
- }
-
- return io_hdr.status;
-}
-
-static int CheckReadMMC() {
- MMC_READ_CD cdb;
- unsigned char buf[CD_FRAMESIZE_RAW];
-
- memset(&cdb, 0, sizeof(cdb));
- memset(buf, 0xAA, sizeof(buf));
-
- cdb.Code = GPCMD_READ_CD;
- cdb.IncludeEDC = 0;
- cdb.IncludeUserData = 1;
- cdb.HeaderCode = 3;
- cdb.IncludeSyncData = 1;
- cdb.TransferBlocks[2] = 1;
-
- if (SendMMCCmd((unsigned char *)&cdb, sizeof(cdb), NULL, 0, buf, sizeof(buf)) == 0) {
- if (buf[0] != 0xAA) {
- PRINTF("Using MMC for data\n");
- return 1; // supported
- }
- }
-
- return 0; // NOT supported
-}
-
-static int CheckSubQMMC() {
- MMC_READ_CD cdb;
- unsigned char buf[CD_FRAMESIZE_RAW + 96];
-
- memset(&cdb, 0, sizeof(cdb));
- memset(buf, 0xAA, sizeof(buf));
-
- cdb.Code = GPCMD_READ_CD;
- cdb.IncludeEDC = 1;
- cdb.IncludeUserData = 1;
- cdb.HeaderCode = 3;
- cdb.IncludeSyncData = 1;
- cdb.SubChannelSelection = 1;
- cdb.TransferBlocks[2] = 1;
-
- if (SendMMCCmd((unsigned char *)&cdb, sizeof(cdb), NULL, 0, buf, sizeof(buf)) == 0) {
- if (buf[0] != 0xAA && (buf[2352] != 0xAA || buf[2353] != 0xAA)) {
- PRINTF("Using MMC for subchannel\n");
- return 1; // supported
- }
- }
-
- return 0; // NOT supported
-}
-
-int OpenCdHandle(const char *dev) {
- char spindown;
-
- cdHandle = open(dev, O_RDONLY);
-
- if (cdHandle != -1) {
- ioctl(cdHandle, CDROM_LOCKDOOR, 0);
-
- spindown = (char)SpinDown;
- ioctl(cdHandle, CDROMSETSPINDOWN, &spindown);
-
- ioctl(cdHandle, CDROM_SELECT_SPEED, CdrSpeed);
-
- ReadMMC = CheckReadMMC();
- SubQMMC = CheckSubQMMC();
-
- return 0;
- }
-
- return -1;
-}
-
-void CloseCdHandle() {
- char spindown = SPINDOWN_VENDOR_SPECIFIC;
- ioctl(cdHandle, CDROMSETSPINDOWN, &spindown);
-
- close(cdHandle);
-
- cdHandle = -1;
-}
-
-int IsCdHandleOpen() {
- return (cdHandle != -1);
-}
-
-long GetTN(unsigned char *buffer) {
- struct cdrom_tochdr toc;
-
- if (ioctl(cdHandle, CDROMREADTOCHDR, &toc) == -1)
- return -1;
-
- buffer[0] = toc.cdth_trk0; // start track
- buffer[1] = toc.cdth_trk1; // end track
-
- return 0;
-}
-
-long GetTD(unsigned char track, unsigned char *buffer) {
- struct cdrom_tocentry entry;
-
- if (track == 0)
- track = 0xAA; // total time (leadout)
- entry.cdte_track = track;
- entry.cdte_format = CDROM_MSF;
-
- if (ioctl(cdHandle, CDROMREADTOCENTRY, &entry) == -1)
- return -1;
-
- buffer[0] = entry.cdte_addr.msf.frame;
- buffer[1] = entry.cdte_addr.msf.second;
- buffer[2] = entry.cdte_addr.msf.minute;
-
- return 0;
-}
-
-long GetTE(unsigned char track, unsigned char *m, unsigned char *s, unsigned char *f) {
- struct cdrom_tocentry entry;
- unsigned char msf[3];
-
- if (GetTN(msf) == -1) return -1;
-
- entry.cdte_track = track + 1;
- if (entry.cdte_track > msf[1]) entry.cdte_track = 0xaa;
-
- entry.cdte_format = CDROM_MSF;
-
- if (ioctl(cdHandle, CDROMREADTOCENTRY, &entry) == -1)
- return -1;
-
- lba_to_msf(msf_to_lba(entry.cdte_addr.msf.minute, entry.cdte_addr.msf.second, entry.cdte_addr.msf.frame) - CD_MSF_OFFSET, msf);
-
- *m = msf[0];
- *s = msf[1];
- *f = msf[2];
-
- return 0;
-}
-
-long ReadSector(crdata *cr) {
- if (ReadMMC) {
- MMC_READ_CD cdb;
- int lba;
-
- memset(&cdb, 0, sizeof(cdb));
-
- lba = msf_to_lba(cr->msf.cdmsf_min0, cr->msf.cdmsf_sec0, cr->msf.cdmsf_frame0);
-
- cdb.Code = GPCMD_READ_CD;
- cdb.IncludeEDC = 1;
- cdb.IncludeUserData = 1;
- cdb.HeaderCode = 3;
- cdb.IncludeSyncData = 1;
- cdb.SubChannelSelection = 0;
- cdb.StartingLBA[1] = lba >> 16;
- cdb.StartingLBA[2] = lba >> 8;
- cdb.StartingLBA[3] = lba;
- cdb.TransferBlocks[2] = 1;
-
- if (SendMMCCmd((unsigned char *)&cdb, sizeof(cdb), NULL, 0, (unsigned char *)cr, sizeof(*cr)) != 0)
- return -1;
- } else {
- if (ioctl(cdHandle, CDROMREADRAW, cr) == -1)
- return -1;
- }
-
- return 0;
-}
-
-long PlayCDDA(unsigned char *sector) {
- struct cdrom_msf addr;
- unsigned char ptmp[4];
-
- // 0 is the last track of every cdrom, so play up to there
- if (GetTD(0, ptmp) == -1)
- return -1;
-
- addr.cdmsf_min0 = sector[0];
- addr.cdmsf_sec0 = sector[1];
- addr.cdmsf_frame0 = sector[2];
- addr.cdmsf_min1 = ptmp[2];
- addr.cdmsf_sec1 = ptmp[1];
- addr.cdmsf_frame1 = ptmp[0];
-
- if (ioctl(cdHandle, CDROMPLAYMSF, &addr) == -1)
- return -1;
-
- return 0;
-}
-
-long StopCDDA() {
- struct cdrom_subchnl sc;
-
- sc.cdsc_format = CDROM_MSF;
- if (ioctl(cdHandle, CDROMSUBCHNL, &sc) == -1)
- return -1;
-
- switch (sc.cdsc_audiostatus) {
- case CDROM_AUDIO_PAUSED:
- case CDROM_AUDIO_PLAY:
- ioctl(cdHandle, CDROMSTOP);
- break;
- }
-
- return 0;
-}
-
-long GetStatus(int playing, struct CdrStat *stat) {
- struct cdrom_subchnl sc;
- int ret;
- char spindown;
-
- memset(stat, 0, sizeof(struct CdrStat));
-
- if (playing) { // return Time only if playing
- sc.cdsc_format = CDROM_MSF;
- if (ioctl(cdHandle, CDROMSUBCHNL, &sc) != -1)
- memcpy(stat->Time, &sc.cdsc_absaddr.msf, 3);
- }
-
- ret = ioctl(cdHandle, CDROM_DISC_STATUS);
- switch (ret) {
- case CDS_AUDIO:
- stat->Type = 0x02;
- break;
- case CDS_DATA_1:
- case CDS_DATA_2:
- case CDS_XA_2_1:
- case CDS_XA_2_2:
- stat->Type = 0x01;
- break;
- }
- ret = ioctl(cdHandle, CDROM_DRIVE_STATUS);
- switch (ret) {
- case CDS_NO_DISC:
- case CDS_TRAY_OPEN:
- stat->Type = 0xff;
- stat->Status |= 0x10;
- break;
- default:
- spindown = (char)SpinDown;
- ioctl(cdHandle, CDROMSETSPINDOWN, &spindown);
- ioctl(cdHandle, CDROM_SELECT_SPEED, CdrSpeed);
- ioctl(cdHandle, CDROM_LOCKDOOR, 0);
- break;
- }
-
- switch (sc.cdsc_audiostatus) {
- case CDROM_AUDIO_PLAY:
- stat->Status |= 0x80;
- break;
- }
-
- return 0;
-}
-
-static unsigned char *ReadSubMMC(const unsigned char *time) {
- static unsigned char buf[CD_FRAMESIZE_RAW + 96];
- int lba = msf_to_lba(btoi(time[0]), btoi(time[1]), btoi(time[2]));
- MMC_READ_CD cdb;
-
- memset(&cdb, 0, sizeof(cdb));
-
- cdb.Code = GPCMD_READ_CD;
- cdb.IncludeEDC = 1;
- cdb.IncludeUserData = 1;
- cdb.HeaderCode = 3;
- cdb.IncludeSyncData = 1;
- cdb.StartingLBA[1] = lba >> 16;
- cdb.StartingLBA[2] = lba >> 8;
- cdb.StartingLBA[3] = lba;
- cdb.TransferBlocks[2] = 1;
- cdb.SubChannelSelection = 1;
-
- if (SendMMCCmd((unsigned char *)&cdb, sizeof(cdb), NULL, 0, buf, sizeof(buf)) != 0)
- return NULL;
-
- DecodeRawSubData(buf + CD_FRAMESIZE_RAW);
- return buf + CD_FRAMESIZE_RAW;
-}
-
-static unsigned char *ReadSubIOCTL(const unsigned char *time) {
- static struct SubQ subq;
- struct cdrom_subchnl subchnl;
- int r;
- crdata cr;
- unsigned short crc;
-
- cr.msf.cdmsf_min0 = btoi(time[0]);
- cr.msf.cdmsf_sec0 = btoi(time[1]);
- cr.msf.cdmsf_frame0 = btoi(time[2]);
-
- if (ioctl(cdHandle, CDROMSEEK, &cr.msf) == -1) {
- // will be slower, but there's no other way to make it accurate
- if (ioctl(cdHandle, CDROMREADRAW, &cr) == -1) {
- return NULL;
- }
- }
-
- subchnl.cdsc_format = CDROM_MSF;
- r = ioctl(cdHandle, CDROMSUBCHNL, &subchnl);
-
- if (r == -1) return NULL;
-
- subq.ControlAndADR = 0x41;
- subq.TrackNumber = subchnl.cdsc_trk;
- subq.IndexNumber = subchnl.cdsc_ind;
- subq.TrackRelativeAddress[0] = itob(subchnl.cdsc_reladdr.msf.minute);
- subq.TrackRelativeAddress[1] = itob(subchnl.cdsc_reladdr.msf.second);
- subq.TrackRelativeAddress[2] = itob(subchnl.cdsc_reladdr.msf.frame);
- subq.AbsoluteAddress[0] = itob(subchnl.cdsc_absaddr.msf.minute);
- subq.AbsoluteAddress[1] = itob(subchnl.cdsc_absaddr.msf.second);
- subq.AbsoluteAddress[2] = itob(subchnl.cdsc_absaddr.msf.frame);
-
- // CRC is not supported with IOCTL, fake it.
- crc = calcCrc((unsigned char *)&subq + 12, 10);
- subq.CRC[0] = (crc >> 8);
- subq.CRC[1] = (crc & 0xFF);
-
- r = msf_to_lba(btoi(time[0]), btoi(time[1]), btoi(time[2]));
-
- if (GetTE(1, &cr.msf.cdmsf_min0, &cr.msf.cdmsf_sec0, &cr.msf.cdmsf_frame0) == -1) {
- cr.msf.cdmsf_min0 = 80;
- cr.msf.cdmsf_sec0 = 0;
- cr.msf.cdmsf_frame0 = 0;
- }
-
- if (msf_to_lba(cr.msf.cdmsf_min0, cr.msf.cdmsf_sec0, cr.msf.cdmsf_frame0) >= r &&
- (msf_to_lba(subchnl.cdsc_absaddr.msf.minute, subchnl.cdsc_absaddr.msf.second, subchnl.cdsc_absaddr.msf.frame) != r ||
- msf_to_lba(subchnl.cdsc_reladdr.msf.minute, subchnl.cdsc_reladdr.msf.second, subchnl.cdsc_reladdr.msf.frame) != r - CD_MSF_OFFSET))
- subq.CRC[1] ^= 1; // time mismatch; report wrong CRC
-
- PRINTF("subq : %x,%x : %x,%x,%x : %x,%x,%x\n",
- subchnl.cdsc_trk, subchnl.cdsc_ind,
- itob(subchnl.cdsc_reladdr.msf.minute), itob(subchnl.cdsc_reladdr.msf.second), itob(subchnl.cdsc_reladdr.msf.frame),
- itob(subchnl.cdsc_absaddr.msf.minute), itob(subchnl.cdsc_absaddr.msf.second), itob(subchnl.cdsc_absaddr.msf.frame));
-
- return (unsigned char *)&subq;
-}
-
-unsigned char *ReadSub(const unsigned char *time) {
- if (SubQMMC) return ReadSubMMC(time);
- else return ReadSubIOCTL(time);
-}
-
-#endif
notaz.gp2x.de / pcsx_rearmed.git / blobdiff