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/*
$Id: interface.c,v 1.25 2005/10/04 00:38:34 rocky Exp $
Copyright (C) 2005 Rocky Bernstein <rocky@panix.com>
Copyright (C) 1998 Monty xiphmont@mit.edu
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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/******************************************************************
* 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 "common_interface.h"
#include "low_interface.h"
#include "utils.h"
#include <cdio/bytesex.h>
#include <cdio/mmc.h>
static void _clean_messages(cdrom_drive_t *d)
{
if(d){
if(d->messagebuf)free(d->messagebuf);
if(d->errorbuf)free(d->errorbuf);
d->messagebuf=NULL;
d->errorbuf=NULL;
}
}
/*!
Closes d and releases all storage associated with it except
the internal p_cdio pointer.
@param d cdrom_drive_t object to be closed.
@return 0 if passed a null pointer and 1 if not in which case
some work was probably done.
@see cdio_cddap_close
*/
bool
cdio_cddap_close_no_free_cdio(cdrom_drive_t *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->drive_model) free(d->drive_model);
d->cdda_device_name = d->drive_model = NULL;
free(d);
return true;
}
return false;
}
/*!
Closes d and releases all storage associated with it.
Doubles as "cdrom_drive_free()".
@param d cdrom_drive_t object to be closed.
@return 0 if passed a null pointer and 1 if not in which case
some work was probably done.
@see cdio_cddap_close_no_free_cdio
*/
int
cdio_cddap_close(cdrom_drive_t *d)
{
if (d) {
CdIo_t *p_cdio = d->p_cdio;
cdio_cddap_close_no_free_cdio(d);
cdio_destroy (p_cdio);
return 1;
}
return 0;
}
/* finish initializing the drive! */
int
cdio_cddap_open(cdrom_drive_t *d)
{
int ret;
if(d->opened)return(0);
if ( (ret=cddap_init_drive(d)) )
return(ret);
/* 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 ( -1 == d->bigendianp ) {
d->bigendianp = data_bigendianp(d);
}
return(0);
}
int
cdio_cddap_speed_set(cdrom_drive_t *d, int speed)
{
return d->set_speed ? d->set_speed(d, speed) : 0;
}
long
cdio_cddap_read(cdrom_drive_t *d, void *buffer, lsn_t beginsector,
long sectors)
{
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->b_swap_bytes && d->bigendianp != bigendianp() ) {
int i;
uint16_t *p=(uint16_t *)buffer;
long els=sectors*CDIO_CD_FRAMESIZE_RAW/2;
for(i=0;i<els;i++)
p[i]=UINT16_SWAP_LE_BE_C(p[i]);
}
}
}
return(sectors);
}
cderror(d,"400: Device not open\n");
return(-400);
}
void
cdio_cddap_verbose_set(cdrom_drive_t *d,int err_action, int mes_action)
{
d->messagedest=mes_action;
d->errordest=err_action;
}
extern char *
cdio_cddap_messages(cdrom_drive_t *d)
{
char *ret=d->messagebuf;
d->messagebuf=NULL;
return(ret);
}
extern char *
cdio_cddap_errors(cdrom_drive_t *d)
{
char *ret=d->errorbuf;
d->errorbuf=NULL;
return(ret);
}
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