diff options
Diffstat (limited to 'sys/cdrom/gstcdplayer_ioctl.c')
| -rw-r--r-- | sys/cdrom/gstcdplayer_ioctl.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/sys/cdrom/gstcdplayer_ioctl.c b/sys/cdrom/gstcdplayer_ioctl.c new file mode 100644 index 00000000..2da746a2 --- /dev/null +++ b/sys/cdrom/gstcdplayer_ioctl.c @@ -0,0 +1,165 @@ +/* gstcdplay + * Copyright (c) 2002 Charles Schmidt <cbschmid@uiuc.edu> + + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include "gstcdplayer_ioctl.h" + +#include <sys/types.h> +#include <sys/stat.h> +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/ioctl.h> +#include <errno.h> + +#include <linux/cdrom.h> + + +gboolean cd_init(struct cd *cd,const gchar *device) +{ + struct cdrom_tochdr toc_header; + struct cdrom_tocentry toc_entry; + guint i; + + cd->fd = open(device,O_RDONLY | O_NONBLOCK); + + if (cd->fd == -1) { + return FALSE; + } + + /* get the toc header information */ + if (ioctl(cd->fd,CDROMREADTOCHDR,&toc_header) != 0) { + return FALSE; + } + + /* read each entry in the toc header */ + for (i = 1; i < toc_header.cdth_trk1; i++) { + toc_entry.cdte_format = CDROM_MSF; + toc_entry.cdte_track = i; + + if (ioctl(cd->fd,CDROMREADTOCENTRY,&toc_entry) != 0) { + return FALSE; + } + + cd->tracks[i].minute = toc_entry.cdte_addr.msf.minute; + cd->tracks[i].second = toc_entry.cdte_addr.msf.second; + cd->tracks[i].frame = toc_entry.cdte_addr.msf.frame; + cd->tracks[i].data_track = (toc_entry.cdte_ctrl == CDROM_DATA_TRACK); + } + + /* read the leadout */ + toc_entry.cdte_track = CDROM_LEADOUT; + toc_entry.cdte_format = CDROM_MSF; + if (ioctl(cd->fd,CDROMREADTOCENTRY,&toc_entry) != 0) { + return FALSE; + } + cd->tracks[LEADOUT].minute = toc_entry.cdte_addr.msf.minute; + cd->tracks[LEADOUT].second = toc_entry.cdte_addr.msf.second; + cd->tracks[LEADOUT].frame = toc_entry.cdte_addr.msf.frame; + + cd->num_tracks = toc_header.cdth_trk1; + + return TRUE; +} + +gboolean cd_start(struct cd *cd,guint start_track) +{ + struct cdrom_msf msf; + + if (cd->fd == -1) { + return FALSE; + } + + if (start_track <= 0) { + start_track = 1; + } + + if (start_track > cd->num_tracks) { + start_track = cd->num_tracks; + } + + msf.cdmsf_min0 = cd->tracks[start_track].minute; + msf.cdmsf_sec0 = cd->tracks[start_track].second; + msf.cdmsf_frame0 = cd->tracks[start_track].frame; + + msf.cdmsf_min1 = cd->tracks[LEADOUT].minute; + msf.cdmsf_sec1 = cd->tracks[LEADOUT].second; + msf.cdmsf_frame1 = cd->tracks[LEADOUT].frame; + + if (ioctl(cd->fd,CDROMPLAYMSF,&msf) != 0) { + return FALSE; + } + + return TRUE; +} + +gboolean cd_pause(struct cd *cd) +{ + if (cd->fd == -1) { + return FALSE; + } + + if (ioctl(cd->fd,CDROMPAUSE,NULL) != 0) { + return FALSE; + } + + return TRUE; +} + +gboolean cd_resume(struct cd *cd) +{ + if (cd->fd == -1) { + return FALSE; + } + + if (ioctl(cd->fd,CDROMRESUME,NULL) != 0) { + return FALSE; + } + + return TRUE; +} + +gboolean cd_stop(struct cd *cd) +{ + if (cd->fd == -1) { + return FALSE; + } + + if (ioctl(cd->fd,CDROMSTOP,NULL) != 0) { + return FALSE; + } + + return TRUE; +} + + +gboolean cd_close(struct cd *cd) +{ + if (cd->fd == -1) { + return TRUE; + } + + if (close(cd->fd) != 0) { + return FALSE; + } + + return TRUE; +} + |