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/******************************************************************
* CopyPolicy: GNU Lesser General Public License 2.1 applies
* Copyright (C) 1998-2008 Monty xiphmont@mit.edu
*
* Top-level interface module for cdrom drive access. SCSI, ATAPI, etc
* specific stuff are in other modules. Note that SCSI does use
* specialized ioctls; these appear in common_interface.c where the
* generic_scsi stuff is in scsi_interface.c.
*
******************************************************************/
#include "low_interface.h"
#include "common_interface.h"
#include "utils.h"
#include "../version.h"
char *cdda_version(void){
return VERSIONNUM;
}
static void _clean_messages(cdrom_drive *d){
if(d){
if(d->messagebuf)free(d->messagebuf);
if(d->errorbuf)free(d->errorbuf);
d->messagebuf=NULL;
d->errorbuf=NULL;
}
}
/* doubles as "cdrom_drive_free()" */
int cdda_close(cdrom_drive *d){
if(d){
if(d->opened)
d->enable_cdda(d,0);
_clean_messages(d);
if(d->cdda_device_name)free(d->cdda_device_name);
if(d->ioctl_device_name)free(d->ioctl_device_name);
if(d->drive_model)free(d->drive_model);
if(d->cdda_fd!=-1)close(d->cdda_fd);
if(d->ioctl_fd!=-1 && d->ioctl_fd!=d->cdda_fd)close(d->ioctl_fd);
if(d->private){
if(d->private->sg_hd)free(d->private->sg_hd);
free(d->private);
}
free(d);
}
return(0);
}
/* finish initializing the drive! */
int cdda_open(cdrom_drive *d){
int ret;
if(d->opened)return(0);
switch(d->interface){
case SGIO_SCSI_BUGGY1:
case SGIO_SCSI:
case GENERIC_SCSI:
if((ret=scsi_init_drive(d)))
return(ret);
break;
case COOKED_IOCTL:
if((ret=cooked_init_drive(d)))
return(ret);
break;
#ifdef CDDA_TEST
case TEST_INTERFACE:
if((ret=test_init_drive(d)))
return(ret);
break;
#endif
default:
cderror(d,"100: Interface not supported\n");
return(-100);
}
/* Check TOC, enable for CDDA */
/* Some drives happily return a TOC even if there is no disc... */
{
int i;
for(i=0;i<d->tracks;i++)
if(d->disc_toc[i].dwStartSector<0 ||
d->disc_toc[i+1].dwStartSector==0){
d->opened=0;
cderror(d,"009: CDROM reporting illegal table of contents\n");
return(-9);
}
}
if((ret=d->enable_cdda(d,1)))
return(ret);
/* d->select_speed(d,d->maxspeed); most drives are full speed by default */
if(d->bigendianp==-1)d->bigendianp=data_bigendianp(d);
return(0);
}
int cdda_speed_set(cdrom_drive *d, int speed)
{
if(d->set_speed)
if(!d->set_speed(d,speed))return 0;
cderror(d,"405: Option not supported by drive\n");
return -405;
}
long cdda_read_timed(cdrom_drive *d, void *buffer, long beginsector, long sectors, int *ms){
if(ms)*ms= -1;
if(d->opened){
if(sectors>0){
sectors=d->read_audio(d,buffer,beginsector,sectors);
if(sectors>0){
/* byteswap? */
if(d->bigendianp==-1) /* not determined yet */
d->bigendianp=data_bigendianp(d);
if(d->bigendianp!=bigendianp()){
int i;
u_int16_t *p=(u_int16_t *)buffer;
long els=sectors*CD_FRAMESIZE_RAW/2;
for(i=0;i<els;i++)p[i]=swap16(p[i]);
}
}
}
if(ms)*ms=d->private->last_milliseconds;
return(sectors);
}
cderror(d,"400: Device not open\n");
return(-400);
}
long cdda_read(cdrom_drive *d, void *buffer, long beginsector, long sectors){
return cdda_read_timed(d,buffer,beginsector,sectors,NULL);
}
void cdda_verbose_set(cdrom_drive *d,int err_action, int mes_action){
d->messagedest=mes_action;
d->errordest=err_action;
}
extern char *cdda_messages(cdrom_drive *d){
char *ret=d->messagebuf;
d->messagebuf=NULL;
return(ret);
}
extern char *cdda_errors(cdrom_drive *d){
char *ret=d->errorbuf;
d->errorbuf=NULL;
return(ret);
}
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