/*
$Id: freebsd_ioctl.c,v 1.6 2005/07/23 22:24:04 rocky Exp $
Copyright (C) 2003, 2004, 2005 Rocky Bernstein <rocky@panix.com>
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
*/
/* This file contains FreeBSD-specific code and implements low-level
control of the CD drive. Culled initially I think from xine's or
mplayer's FreeBSD code with lots of modifications.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
static const char _rcsid[] = "$Id: freebsd_ioctl.c,v 1.6 2005/07/23 22:24:04 rocky Exp $";
#ifdef HAVE_FREEBSD_CDROM
#include "freebsd.h"
/* Check a drive to see if it is a CD-ROM
Return 1 if a CD-ROM. 0 if it exists but isn't a CD-ROM drive
and -1 if no device exists .
*/
bool
cdio_is_cdrom_freebsd_ioctl(char *drive, char *mnttype)
{
bool is_cd=false;
int cdfd;
struct ioc_toc_header tochdr;
/* If it doesn't exist, return -1 */
if ( !cdio_is_device_quiet_generic(drive) ) {
return(false);
}
/* If it does exist, verify that it's an available CD-ROM */
cdfd = open(drive, (O_RDONLY|O_EXCL|O_NONBLOCK), 0);
/* Should we want to test the condition in more detail:
ENOENT is the error for /dev/xxxxx does not exist;
ENODEV means there's no drive present. */
if ( cdfd >= 0 ) {
if ( ioctl(cdfd, CDIOREADTOCHEADER, &tochdr) != -1 ) {
is_cd = true;
}
close(cdfd);
}
/* Even if we can't read it, it might be mounted */
else if ( mnttype && (strcmp(mnttype, "iso9660") == 0) ) {
is_cd = true;
}
return(is_cd);
}
/*!
Reads a single mode2 sector from cd device into data starting from lsn.
Returns 0 if no error.
*/
int
read_audio_sectors_freebsd_ioctl (_img_private_t *_obj, void *data, lsn_t lsn,
unsigned int nblocks)
{
unsigned char buf[CDIO_CD_FRAMESIZE_RAW] = { 0, };
struct ioc_read_audio cdda;
cdda.address.lba = lsn;
cdda.buffer = buf;
cdda.nframes = nblocks;
cdda.address_format = CDIO_CDROM_LBA;
/* read a frame */
if(ioctl(_obj->gen.fd, CDIOCREADAUDIO, &cdda) < 0) {
perror("CDIOCREADAUDIO");
return 1;
}
memcpy (data, buf, CDIO_CD_FRAMESIZE_RAW);
return 0;
}
/*!
Reads a single mode2 sector from cd device into data starting
from lsn. Returns 0 if no error.
*/
int
read_mode2_sector_freebsd_ioctl (_img_private_t *p_env, void *data, lsn_t lsn,
bool b_form2)
{
char buf[CDIO_CD_FRAMESIZE_RAW] = { 0, };
int retval;
if ( !b_form2 )
return cdio_generic_read_form1_sector (p_env, buf, lsn);
if ( (retval = read_audio_sectors_freebsd_ioctl (p_env, buf, lsn, 1)) )
return retval;
memcpy (data, buf + CDIO_CD_XA_SYNC_HEADER, M2RAW_SECTOR_SIZE);
return 0;
}
/*!
Return the size of the CD in logical block address (LBA) units.
*/
lsn_t
get_disc_last_lsn_freebsd_ioctl (_img_private_t *p_obj)
{
struct ioc_read_toc_single_entry tocent;
uint32_t size;
tocent.track = CDIO_CDROM_LEADOUT_TRACK;
tocent.address_format = CDIO_CDROM_LBA;
if (ioctl (p_obj->gen.fd, CDIOREADTOCENTRY, &tocent) == -1)
{
perror ("ioctl(CDROMREADTOCENTRY)");
exit (EXIT_FAILURE);
}
size = tocent.entry.addr.lba;
return size;
}
/*!
Eject media in CD-ROM drive. Return DRIVER_OP_SUCCESS if successful,
DRIVER_OP_ERROR on error.
*/
driver_return_code_t
eject_media_freebsd_ioctl (_img_private_t *p_env)
{
_img_private_t *p_obj = p_env;
int ret=DRIVER_OP_ERROR;
if (ioctl(p_obj->gen.fd, CDIOCALLOW) == -1) {
cdio_warn("ioctl(fd, CDIOCALLOW) failed: %s\n", strerror(errno));
} else if (ioctl(p_obj->gen.fd, CDIOCEJECT) == -1) {
cdio_warn("ioctl(CDIOCEJECT) failed: %s\n", strerror(errno));
} else {
ret=DRIVER_OP_SUCCESS;;
}
return ret;
}
/*!
Return the media catalog number MCN.
Note: string is malloc'd so caller should free() then returned
string when done with it.
FIXME: This is just a guess.
*/
char *
get_mcn_freebsd_ioctl (const _img_private_t *p_env) {
struct ioc_read_subchannel subchannel;
struct cd_sub_channel_info subchannel_info;
subchannel.address_format = CDIO_CDROM_MSF;
subchannel.data_format = CDIO_SUBCHANNEL_MEDIA_CATALOG;
subchannel.track = 0;
subchannel.data_len = sizeof(subchannel_info);
subchannel.data = &subchannel_info;
if(ioctl(p_env->gen.fd, CDIOCREADSUBCHANNEL, &subchannel) < 0) {
perror("CDIOCREADSUBCHANNEL");
return NULL;
}
/* Probably need a loop over tracks rather than give up if we
can't find in track 0.
*/
if (subchannel_info.what.media_catalog.mc_valid)
return strdup(subchannel_info.what.media_catalog.mc_number);
else
return NULL;
}
/*!
Get format of track.
FIXME: We're just guessing this from the GNU/Linux code.
*/
track_format_t
get_track_format_freebsd_ioctl(const _img_private_t *p_env, track_t i_track)
{
struct ioc_read_subchannel subchannel;
struct cd_sub_channel_info subchannel_info;
subchannel.address_format = CDIO_CDROM_LBA;
subchannel.data_format = CDIO_SUBCHANNEL_CURRENT_POSITION;
subchannel.track = i_track;
subchannel.data_len = 1;
subchannel.data = &subchannel_info;
if(ioctl(p_env->gen.fd, CDIOCREADSUBCHANNEL, &subchannel) < 0) {
perror("CDIOCREADSUBCHANNEL");
return 1;
}
if (subchannel_info.what.position.control == 0x04) {
if (subchannel_info.what.position.data_format == 0x10)
return TRACK_FORMAT_CDI;
else if (subchannel_info.what.position.data_format == 0x20)
return TRACK_FORMAT_XA;
else
return TRACK_FORMAT_DATA;
} else
return TRACK_FORMAT_AUDIO;
}
/*!
Return true if we have XA data (green, mode2 form1) or
XA data (green, mode2 form2). That is track begins:
sync - header - subheader
12 4 - 8
FIXME: there's gotta be a better design for this and get_track_format?
*/
bool
get_track_green_freebsd_ioctl(const _img_private_t *p_env, track_t i_track)
{
struct ioc_read_subchannel subchannel;
struct cd_sub_channel_info subchannel_info;
subchannel.address_format = CDIO_CDROM_LBA;
subchannel.data_format = CDIO_SUBCHANNEL_CURRENT_POSITION;
subchannel.track = i_track;
subchannel.data_len = 1;
subchannel.data = &subchannel_info;
if(ioctl(p_env->gen.fd, CDIOCREADSUBCHANNEL, &subchannel) < 0) {
perror("CDIOCREADSUBCHANNEL");
return 1;
}
/* FIXME: Dunno if this is the right way, but it's what
I was using in cdinfo for a while.
*/
return (subchannel_info.what.position.control & 2) != 0;
}
#endif /* HAVE_FREEBSD_CDROM */
syntax highlighted by Code2HTML, v. 0.9.1