0c35a965fc
copystring -> strdup. Some int's changed to track_t. But I need to be careful *not* to change cdda_interface.h.
292 lines
7.2 KiB
C
292 lines
7.2 KiB
C
/*
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$Id: cooked_interface.c,v 1.2 2004/12/19 01:43:38 rocky Exp $
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Copyright (C) 2004 Rocky Bernstein <rocky@panix.com>
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Original interface.c Copyright (C) 1994-1997
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Eissfeldt heiko@colossus.escape.de
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Current blenderization Copyright (C) 1998-1999 Monty xiphmont@mit.edu
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Copyright (C) 1998 Monty xiphmont@mit.edu
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/******************************************************************
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*
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* CDROM code specific to the cooked ioctl interface
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*
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******************************************************************/
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#include "low_interface.h"
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#include "common_interface.h"
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#include "utils.h"
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static int
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cooked_readtoc (cdrom_drive_t *d)
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{
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int i;
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track_t i_tracks;
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struct cdrom_tochdr hdr;
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struct cdrom_tocentry entry;
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/* get TocHeader to find out how many entries there are */
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if(ioctl(d->ioctl_fd, CDROMREADTOCHDR, &hdr ))
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switch(errno){
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case EPERM:
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cderror(d,"102: Permision denied on cdrom (ioctl) device\n");
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return(-102);
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default:
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cderror(d,"004: Unable to read table of contents header\n");
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return(-4);
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}
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/* get all TocEntries */
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for(i=0;i<hdr.cdth_trk1;i++){
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entry.cdte_track= i+1;
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entry.cdte_format = CDROM_LBA;
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if(ioctl(d->ioctl_fd,CDROMREADTOCENTRY,&entry)){
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cderror(d,"005: Unable to read table of contents entry\n");
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return(-5);
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}
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d->disc_toc[i].bFlags = (entry.cdte_adr << 4) | (entry.cdte_ctrl & 0x0f);
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d->disc_toc[i].bTrack = i+1;
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d->disc_toc[i].dwStartSector = entry.cdte_addr.lba;
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}
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entry.cdte_track = CDIO_CDROM_LEADOUT_TRACK;
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entry.cdte_format = CDROM_LBA;
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if(ioctl(d->ioctl_fd, CDROMREADTOCENTRY, &entry)){
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cderror(d,"005: Unable to read table of contents entry\n");
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return(-5);
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}
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d->disc_toc[i].bFlags = (entry.cdte_adr << 4) | (entry.cdte_ctrl & 0x0f);
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d->disc_toc[i].bTrack = entry.cdte_track;
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d->disc_toc[i].dwStartSector = entry.cdte_addr.lba;
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i_tracks=hdr.cdth_trk1+1;
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d->cd_extra=FixupTOC(d,i_tracks);
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return(--i_tracks); /* without lead-out */
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}
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/* Set operating speed */
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static int
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cooked_setspeed(cdrom_drive_t *d, int speed)
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{
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if(d->ioctl_fd!=-1)
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return ioctl(d->ioctl_fd, CDROM_SELECT_SPEED, speed);
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else
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return 0;
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}
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/* read 'SectorBurst' adjacent sectors of audio sectors
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* to Buffer '*p' beginning at sector 'lSector'
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*/
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static long int
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cooked_read (cdrom_drive_t *d, void *p, long begin, long sectors)
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{
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int retry_count,err;
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struct cdrom_read_audio arg;
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char *buffer=(char *)p;
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/* read d->nsectors at a time, max. */
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sectors=(sectors>d->nsectors?d->nsectors:sectors);
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arg.addr.lba = begin;
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arg.addr_format = CDROM_LBA;
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arg.nframes = sectors;
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arg.buf=buffer;
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retry_count=0;
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do {
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if((err=ioctl(d->ioctl_fd, CDROMREADAUDIO, &arg))){
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if(!d->error_retry)return(-7);
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switch(errno){
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case ENOMEM:
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/* D'oh. Possible kernel error. Keep limping */
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if(sectors==1){
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/* Nope, can't continue */
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cderror(d,"300: Kernel memory error\n");
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return(-300);
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}
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default:
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if(sectors==1){
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/* *Could* be I/O or media error. I think. If we're at
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30 retries, we better skip this unhappy little
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sector. */
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if(retry_count>MAX_RETRIES-1){
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char b[256];
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sprintf(b,"010: Unable to access sector %ld: skipping...\n",
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begin);
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cderror(d,b);
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return(-10);
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}
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break;
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}
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}
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if(retry_count>4)
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if(sectors>1)
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sectors=sectors*3/4;
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retry_count++;
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if(retry_count>MAX_RETRIES){
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cderror(d,"007: Unknown, unrecoverable error reading data\n");
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return(-7);
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}
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}else
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break;
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} while (err);
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return(sectors);
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}
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/* hook */
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static int Dummy (cdrom_drive_t *d,int Switch)
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{
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return(0);
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}
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static int
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verify_read_command(cdrom_drive_t *d)
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{
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int i;
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int16_t *buff=malloc(CD_FRAMESIZE_RAW);
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int audioflag=0;
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cdmessage(d,"Verifying drive can read CDDA...\n");
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d->enable_cdda(d,1);
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for(i=1;i<=d->tracks;i++){
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if(cdda_track_audiop(d,i)==1){
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long firstsector=cdda_track_firstsector(d,i);
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long lastsector=cdda_track_lastsector(d,i);
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long sector=(firstsector+lastsector)>>1;
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audioflag=1;
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if(d->read_audio(d,buff,sector,1)>0){
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cdmessage(d,"\tExpected command set reads OK.\n");
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d->enable_cdda(d,0);
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free(buff);
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return(0);
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}
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}
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}
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d->enable_cdda(d,0);
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if(!audioflag){
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cdmessage(d,"\tCould not find any audio tracks on this disk.\n");
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return(-403);
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}
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cdmessage(d,"\n\tUnable to read any data; "
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"drive probably not CDDA capable.\n");
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cderror(d,"006: Could not read any data from drive\n");
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free(buff);
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return(-6);
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}
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#include "drive_exceptions.h"
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static void
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check_exceptions(cdrom_drive_t *d, const exception_t *list)
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{
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int i=0;
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while(list[i].model){
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if(!strncmp(list[i].model,d->drive_model,strlen(list[i].model))){
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if(list[i].bigendianp!=-1)d->bigendianp=list[i].bigendianp;
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return;
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}
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i++;
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}
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}
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/* set function pointers to use the ioctl routines */
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int
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cooked_init_drive (cdrom_drive_t *d){
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int ret;
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switch(d->drive_type){
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case MATSUSHITA_CDROM_MAJOR: /* sbpcd 1 */
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case MATSUSHITA_CDROM2_MAJOR: /* sbpcd 2 */
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case MATSUSHITA_CDROM3_MAJOR: /* sbpcd 3 */
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case MATSUSHITA_CDROM4_MAJOR: /* sbpcd 4 */
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/* don't make the buffer too big; this sucker don't preempt */
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cdmessage(d,"Attempting to set sbpcd buffer size...\n");
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d->nsectors=8;
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while(1){
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/* this ioctl returns zero on error; exactly wrong, but that's
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what it does. */
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if(ioctl(d->ioctl_fd, CDROMAUDIOBUFSIZ, d->nsectors)==0){
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d->nsectors>>=1;
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if(d->nsectors==0){
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char buffer[256];
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d->nsectors=8;
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sprintf(buffer,"\tTrouble setting buffer size. Defaulting to %d sectors.\n",
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d->nsectors);
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cdmessage(d,buffer);
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break; /* Oh, well. Try to read anyway.*/
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}
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}else{
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char buffer[256];
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sprintf(buffer,"\tSetting read block size at %d sectors (%ld bytes).\n",
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d->nsectors,(long)d->nsectors*CD_FRAMESIZE_RAW);
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cdmessage(d,buffer);
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break;
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}
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}
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break;
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case IDE0_MAJOR:
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case IDE1_MAJOR:
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case IDE2_MAJOR:
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case IDE3_MAJOR:
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d->nsectors=8; /* it's a define in the linux kernel; we have no
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way of determining other than this guess tho */
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d->bigendianp=0;
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d->is_atapi=1;
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check_exceptions(d, atapi_list);
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break;
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default:
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d->nsectors=40;
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}
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d->enable_cdda = Dummy;
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d->read_audio = cooked_read;
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d->set_speed = cooked_setspeed;
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d->read_toc = cooked_readtoc;
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ret=d->tracks=d->read_toc(d);
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if(d->tracks<1)
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return(ret);
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d->opened=1;
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if((ret=verify_read_command(d)))return(ret);
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d->error_retry=1;
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return(0);
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}
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