/* $Id: freebsd_ioctl.c,v 1.1 2005/01/01 02:43:57 rockyb Exp $ Copyright (C) 2003, 2004 Rocky Bernstein 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 1.1 2005/01/01 02:43:57 rockyb 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 *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 (env, buf, lsn); if ( (retval = read_audio_sectors_freebsd_ioctl (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. */ uint32_t stat_size_freebsd_ioctl (_img_private_t *_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 (_obj->gen.fd, CDIOREADTOCENTRY, &tocent) == -1) { perror ("ioctl(CDROMREADTOCENTRY)"); exit (EXIT_FAILURE); } size = tocent.entry.addr.lba; return size; } /*! Eject media. Return 1 if successful, 0 otherwise. */ int eject_media_freebsd_ioctl (_img_private_t *env) { _img_private_t *_obj = env; int ret=2; int fd; if ((fd = open(_obj->gen.source_name, O_RDONLY|O_NONBLOCK)) > -1) { ret = 1; if (ioctl(fd, CDIOCALLOW) == -1) { cdio_warn("ioctl(fd, CDIOCALLOW) failed: %s\n", strerror(errno)); } else if (ioctl(fd, CDIOCEJECT) == -1) { cdio_warn("ioctl(CDIOCEJECT) failed: %s\n", strerror(errno)); } else { ret = 0; } close(fd); } 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 *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(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 *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(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 *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(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 */