msdos/cdrom.c

   1
   2 /*
   3  *  Cdrom - device driver emulation - Audio features.
   4  *  (c) 1998 Petr Tomasek <tomasek@etf.cuni.cz>
   5  *
   6  */
   7
   8 #ifdef linux
   9
  10 #include "config.h"
  11 #include <fcntl.h>
  12 #include <sys/ioctl.h>
  13 #include <sys/types.h>
  14 /* FIXME - how to make this OS independent ?? */
  15 #ifdef HAVE_LINUX_CDROM_H
  16 # include <linux/cdrom.h>
  17 #endif
  18 #ifdef HAVE_LINUX_UCDROM_H
  19 # include <linux/ucdrom.h>
  20 #endif
  21
  22 #include "ldt.h"
  23 #include "drive.h"
  24 #include "msdos.h"
  25 #include "miscemu.h"
  26 #include "module.h"
  27 #include "debug.h"
  28
  29
  30 /*  FIXME - more general ?? */
  31 #define cdrom_dev "/dev/cdrom"
  32
  33 u_char cdrom_a_status (int fd)
  34 {
  35 struct cdrom_subchnl sc;
  36
  37 ioctl(fd,CDROMSUBCHNL,&sc);
  38 return sc.cdsc_audiostatus;
  39 }
  40
  41 BYTE * get_io_stru (WORD * reqh,int dorealmode)
  42 {
  43 WORD ofst,segm;
  44 BYTE * io_stru;
  45 ofst = reqh[7]; segm = reqh[8];
  46
  47 if (dorealmode)
  48   io_stru = DOSMEM_MapRealToLinear (MAKELONG(ofst,segm));
  49 else
  50   io_stru = PTR_SEG_OFF_TO_LIN(segm,ofst);
  51
  52 return io_stru;
  53 }
  54
  55 DWORD msf0_to_abs (struct cdrom_msf0 msf)
  56 {
  57 return  (msf.minute *60 +
  58         msf.second) *75 +
  59         msf.frame-150;
  60 }
  61
  62 void abs_to_msf0 (DWORD abs, struct cdrom_msf0 * msf)
  63 {
  64 DWORD d;
  65 d=abs+150;
  66 msf->frame=d%75;  d=d/75;
  67 msf->second=d%60; msf->minute=d/60;
  68 }
  69
  70 void msf0_to_msf (struct cdrom_msf0 from, struct cdrom_msf0 to, struct cdrom_msf * msf)
  71 {
  72 msf->cdmsf_min0=from.minute;
  73 msf->cdmsf_min1=to.minute;
  74 msf->cdmsf_sec0=from.second;
  75 msf->cdmsf_sec1=to.second;
  76 msf->cdmsf_frame0=from.frame;
  77 msf->cdmsf_frame1=to.frame;
  78 }
  79
  80 void abs_to_msf (DWORD from, DWORD to, struct cdrom_msf * msf)
  81 {
  82 struct cdrom_msf0 fr,tt;
  83 abs_to_msf0(from, &fr);
  84 abs_to_msf0(to, &tt);
  85 msf0_to_msf(fr,tt,msf);
  86 }
  87
  88 /************************************************************
  89  *
  90  *   Cdrom ms-dos driver emulation.
  91  *    (accesible throught the MSCDEX 0x10 function.)
  92  */
  93
  94 extern void do_mscdex_dd (CONTEXT * context, int dorealmode)
  95  {
  96  BYTE * driver_request;
  97  BYTE * io_stru;
  98  static int fdcd=-1; /* file descriptor.. */
  99  struct cdrom_tochdr tochdr; /* the Toc header */
 100  struct cdrom_tocentry tocentry; /* a Toc entry */
 101  struct cdrom_msf msf;
 102  struct cdrom_subchnl subchnl;
 103  u_char Error=255; /*No Error */
 104
 105 if (dorealmode)
 106   driver_request=DOSMEM_MapRealToLinear
 107                         (MAKELONG(BX_reg(context),ES_reg(context)));
 108 else
 109   driver_request=PTR_SEG_OFF_TO_LIN(ES_reg(context),BX_reg(context));
 110
 111 if (!driver_request)
 112      {             /* FIXME - to be deleted ?? */
 113         ERR(int,"   ES:BX==0 ! SEGFAULT ?\n");
 114         ERR(int," -->BX=0x%04x, ES=0x%04lx, DS=0x%04lx, CX=0x%04x\n\n",
 115                 BX_reg(context),
 116                 ES_reg(context),
 117                 DS_reg(context),
 118                 CX_reg(context));
 119      }
 120 else
 121
 122 /* FIXME - would be best to open the device at the begining of the wine
 123    session .... */
 124  if (fdcd<0) fdcd=open(cdrom_dev,O_RDONLY);
 125
 126    TRACE(int,"CDROM device driver -> command <%d>\n",
 127          (unsigned char)driver_request[2]);
 128
 129 /* set status to 0 */
 130  driver_request[3]=0;
 131  driver_request[4]=0;
 132
 133
 134  switch(driver_request[2])
 135  {
 136  case 3:
 137    io_stru=get_io_stru((WORD *)driver_request,dorealmode);
 138    FIXME(int," --> IOCTL INPUT <%d>\n",io_stru[0]);
 139    switch (io_stru[0])
 140         {
 141         case 1: /* location of head */
 142          if (io_stru[1]==0)
 143           {
 144           ioctl(fdcd,CDROMSUBCHNL,&subchnl);
 145         ((DWORD*)io_stru+2)[0]=(DWORD)msf0_to_abs(subchnl.cdsc_absaddr.msf);
 146          FIXME(int," ----> HEAD LOCATION <%ld>\n\n",
 147                                 ((DWORD *)io_stru+2)[0]);
 148           }
 149          else
 150           {
 151          ERR(int,"CDRom-Driver: Unsupported address mode !!\n");
 152          Error=0x0c;
 153           }
 154          break;
 155
 156         case 6: /* device status */
 157               /* FIXME .. does this work properly ?? */
 158          io_stru[3]=io_stru[4]=0;
 159          io_stru[2]=1; /* supports audio channels (?? FIXME ??) */
 160          io_stru[1]=16; /* data read and plays audio racks */
 161 #if defined(CDROM_DRIVE_STATUS) && defined(CDS_TRAY_OPEN)
 162          io_stru[1]|=(ioctl(fdcd,CDROM_DRIVE_STATUS,0)==CDS_TRAY_OPEN);
 163 #endif
 164          TRACE(int," ----> DEVICE STATUS <0x%08lx>\n\n",(DWORD)io_stru[1]);
 165          break;
 166
 167         case 9: /* media changed ? */
 168 #ifdef CDROM_MEDIA_CHANGED
 169          if (ioctl(fdcd,CDROM_MEDIA_CHANGED,0))
 170           io_stru[1]=0xff;
 171          else
 172 #endif
 173           io_stru[0]=0; /* FIXME? 1? */
 174          break;
 175
 176         case 10: /* audio disk info */
 177          ioctl(fdcd,CDROMREADTOCHDR,&tochdr);
 178          io_stru[1]=tochdr.cdth_trk0; /* staring track of the disc */
 179          io_stru[2]=tochdr.cdth_trk1; /* ending track */
 180          tocentry.cdte_track=CDROM_LEADOUT; /* Now the leadout track ...*/
 181          tocentry.cdte_format=CDROM_MSF;
 182          ioctl(fdcd,CDROMREADTOCENTRY,&tocentry); /* ... get position of it */
 183          ((DWORD*)io_stru+3)[0]=(DWORD)msf0_to_abs(tocentry.cdte_addr.msf);
 184          TRACE(int," ----> AUDIO DISK INFO <%d-%d/%ld>\n\n",
 185                                 io_stru[1],io_stru[2],
 186                                 ((DWORD *)io_stru+3)[0]);
 187          break;
 188
 189
 190         case 11: /* audio track info */
 191          tocentry.cdte_track=io_stru[1]; /* track of the disc */
 192          tocentry.cdte_format=CDROM_MSF;
 193          ioctl(fdcd,CDROMREADTOCENTRY,&tocentry);
 194          ((DWORD*)io_stru+2)[0]=(DWORD)msf0_to_abs(tocentry.cdte_addr.msf);
 195                         /* starting point if the track */
 196          io_stru[6]=tocentry.cdte_adr+16*tocentry.cdte_ctrl;
 197          TRACE(int," ----> AUDIO TRACK INFO <track=%d>[%ld] \n\n",
 198                          io_stru[1],((DWORD *)io_stru+2)[0]);
 199          break;
 200
 201         case 12: /* get Q-Channel / Subchannel (??) info */
 202          subchnl.cdsc_format=CDROM_MSF;
 203          ioctl(fdcd,CDROMSUBCHNL,&subchnl);
 204          io_stru[1]=subchnl.cdsc_adr+16*subchnl.cdsc_ctrl;
 205          io_stru[2]=subchnl.cdsc_trk;
 206          io_stru[3]=subchnl.cdsc_ind; /* FIXME - ?? */
 207          io_stru[4]=subchnl.cdsc_reladdr.msf.minute;
 208          io_stru[5]=subchnl.cdsc_reladdr.msf.second;
 209          io_stru[6]=subchnl.cdsc_reladdr.msf.frame;
 210          io_stru[7]=0; /* always zero */
 211          io_stru[8]=subchnl.cdsc_absaddr.msf.minute;
 212          io_stru[9]=subchnl.cdsc_absaddr.msf.second;
 213          io_stru[10]=subchnl.cdsc_absaddr.msf.frame;
 214          break;
 215
 216         case 15: /* fixme !!!!!!! just a small workaround ! */
 217          /* !!!! FIXME FIXME FIXME !! */
 218          tocentry.cdte_track=CDROM_LEADOUT; /* Now the leadout track ...*/
 219          tocentry.cdte_format=CDROM_MSF;
 220          ioctl(fdcd,CDROMREADTOCENTRY,&tocentry); /* ... get position of it */
 221          ((DWORD*)io_stru+7)[0]=(DWORD)msf0_to_abs(tocentry.cdte_addr.msf);
 222         break;
 223
 224         default:
 225          FIXME(int," Cdrom-driver: IOCTL INPUT: Unimplemented <%d>!! \n",
 226                                                              io_stru[0]);
 227          Error=0x0c;
 228          break;
 229         }
 230    break;
 231
 232  case 12:
 233    io_stru=get_io_stru((WORD *)driver_request,dorealmode);
 234    TRACE(int," --> IOCTL OUTPUT <%d>\n",io_stru[0]);
 235    switch (io_stru[0])
 236         {
 237         case 0: /* eject */
 238          ioctl (fdcd,CDROMEJECT);
 239          TRACE(int," ----> EJECT \n\n");
 240          break;
 241         case 5: /* close tray */
 242          ioctl (fdcd,CDROMCLOSETRAY);
 243          TRACE(int," ----> CLOSE TRAY \n\n");
 244          break;
 245         case 2: /* reset drive */
 246          ioctl (fdcd,CDROMRESET);
 247          TRACE(int," ----> RESET \n\n");
 248          break;
 249         default:
 250          FIXME(int," Cdrom-driver: IOCTL OUPUT: Unimplemented <%d>!! \n",
 251                                                              io_stru[0]);
 252          Error=0x0c;
 253          break;
 254         }
 255    break;
 256
 257 case 133:
 258    if (cdrom_a_status(fdcd)==CDROM_AUDIO_PLAY)
 259      {
 260      ioctl (fdcd,CDROMPAUSE);
 261      TRACE(int," --> STOP AUDIO (Paused)\n\n");
 262      }
 263    else
 264      {
 265      ioctl (fdcd,CDROMSTOP);
 266      TRACE(int," --> STOP AUDIO (Stopped)\n\n");
 267      }
 268    break;
 269
 270  case 132:  /* FIXME - It didn't function for me... */
 271    FIXME(int," --> PLAY AUDIO \n");
 272      ioctl (fdcd,CDROMSTART);
 273    FIXME(int,"Mode :<0x%02X> , [%ld-%ld]\n\n",
 274           (unsigned char)driver_request[13],
 275           ((DWORD*)driver_request+14)[0],
 276           ((DWORD*)driver_request+18)[0]);
 277    if (driver_request[13]==0)
 278      {
 279     abs_to_msf(((DWORD*)driver_request+14)[0],
 280                ((DWORD*)driver_request+18)[0],&msf);
 281     ioctl(fdcd,CDROMPLAYMSF,&msf);
 282      }
 283    else
 284      {
 285     ERR(int,"CDRom-Driver: Unsupported address mode !!\n");
 286     Error=0x0c;
 287      }
 288    break;
 289  case 136:
 290    TRACE(int," --> RESUME AUDIO \n\n");
 291    ioctl(fdcd,CDROMRESUME);
 292    break;
 293  default:
 294    FIXME(int," CDRom-Driver - ioctl uninplemented <%d>\n",driver_request[2]);
 295    Error=0x0c;
 296
 297  }
 298
 299 if (Error<255)
 300  {
 301  driver_request[4]|=127;
 302  driver_request[3]=Error;
 303  }
 304  driver_request[4]|=2*(cdrom_a_status(fdcd)==CDROM_AUDIO_PLAY);
 305
 306 /*  close (fdcd); FIXME !! -- cannot use close when ejecting
 307     the cd-rom - close would close it again */
 308 }
 309
 310 #endif
 311