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Diffstat (limited to 'contrib/libcdio/FreeBSD/freebsd.c')
| -rw-r--r-- | contrib/libcdio/FreeBSD/freebsd.c | 638 |
1 files changed, 638 insertions, 0 deletions
diff --git a/contrib/libcdio/FreeBSD/freebsd.c b/contrib/libcdio/FreeBSD/freebsd.c new file mode 100644 index 000000000..daea9b3f5 --- /dev/null +++ b/contrib/libcdio/FreeBSD/freebsd.c @@ -0,0 +1,638 @@ +/* + $Id: freebsd.c,v 1.1 2005/01/01 02:43:57 rockyb Exp $ + + Copyright (C) 2003, 2004 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.c,v 1.1 2005/01/01 02:43:57 rockyb Exp $"; + +#include "freebsd.h" + +#ifdef HAVE_FREEBSD_CDROM + +#include <cdio/sector.h> + +static access_mode_t +str_to_access_mode_freebsd(const char *psz_access_mode) +{ + const access_mode_t default_access_mode = DEFAULT_FREEBSD_AM; + + if (NULL==psz_access_mode) return default_access_mode; + + if (!strcmp(psz_access_mode, "ioctl")) + return _AM_IOCTL; + else if (!strcmp(psz_access_mode, "CAM")) + return _AM_CAM; + else { + cdio_warn ("unknown access type: %s. Default ioctl used.", + psz_access_mode); + return default_access_mode; + } +} + +static void +_free_freebsd (void *obj) +{ + _img_private_t *env = obj; + + if (NULL == env) return; + + if (NULL != env->device) free(env->device); + + if (_AM_CAM == env->access_mode) + return free_freebsd_cam(env); + else + return cdio_generic_free(obj); +} + +/* 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 . +*/ +static bool +cdio_is_cdrom(char *drive, char *mnttype) +{ + return cdio_is_cdrom_freebsd_ioctl(drive, mnttype); +} + +/*! + Reads nblocks of audio sectors from cd device into data starting from lsn. + Returns 0 if no error. + */ +static int +_read_audio_sectors_freebsd (void *user_data, void *data, lsn_t lsn, + unsigned int nblocks) +{ + return read_audio_sectors_freebsd_ioctl(user_data, data, lsn, nblocks); +} + +/*! + Reads a single mode2 sector from cd device into data starting + from lsn. Returns 0 if no error. + */ +static int +_read_mode2_sector_freebsd (void *user_data, void *data, lsn_t lsn, + bool b_form2) +{ + _img_private_t *env = user_data; + + if ( env->access_mode == _AM_CAM ) + return read_mode2_sector_freebsd_cam(env, data, lsn, b_form2); + else + return read_mode2_sector_freebsd_ioctl(env, data, lsn, b_form2); +} + +/*! + Reads nblocks of mode2 sectors from cd device into data starting + from lsn. + Returns 0 if no error. + */ +static int +_read_mode2_sectors_freebsd (void *user_data, void *data, lsn_t lsn, + bool b_form2, unsigned int nblocks) +{ + _img_private_t *env = user_data; + + if ( env->access_mode == _AM_CAM && b_form2) { + /* We have a routine that covers this case without looping. */ + return read_mode2_sectors_freebsd_cam(env, data, lsn, nblocks); + } else { + unsigned int i; + unsigned int i_blocksize = b_form2 ? M2RAW_SECTOR_SIZE : CDIO_CD_FRAMESIZE; + + /* For each frame, pick out the data part we need */ + for (i = 0; i < nblocks; i++) { + int retval = _read_mode2_sector_freebsd (env, + ((char *)data) + + (i_blocksize * i), + lsn + i, b_form2); + if (retval) return retval; + } + } + return 0; +} + +/*! + Return the size of the CD in logical block address (LBA) units. + */ +static uint32_t +_stat_size_freebsd (void *obj) +{ + _img_private_t *env = obj; + + if (NULL == env) return CDIO_INVALID_LBA; + + if (_AM_CAM == env->access_mode) + return stat_size_freebsd_cam(env); + else + return stat_size_freebsd_ioctl(env); +} + +/*! + Set the key "arg" to "value" in source device. +*/ +static int +_set_arg_freebsd (void *user_data, const char key[], const char value[]) +{ + _img_private_t *env = user_data; + + if (!strcmp (key, "source")) + { + if (!value) + return -2; + + free (env->gen.source_name); + + env->gen.source_name = strdup (value); + } + else if (!strcmp (key, "access-mode")) + { + env->access_mode = str_to_access_mode_freebsd(value); + if (env->access_mode == _AM_CAM && !env->b_cam_init) + return init_freebsd_cam(env) ? 1 : -3; + return 0; + } + else + return -1; + + return 0; +} + +/*! + Read and cache the CD's Track Table of Contents and track info. + Return false if unsuccessful; +*/ +static bool +read_toc_freebsd (void *p_user_data) +{ + _img_private_t *p_env = p_user_data; + track_t i, j; + + /* read TOC header */ + if ( ioctl(p_env->gen.fd, CDIOREADTOCHEADER, &p_env->tochdr) == -1 ) { + cdio_warn("error in ioctl(CDIOREADTOCHEADER): %s\n", strerror(errno)); + return false; + } + + p_env->gen.i_first_track = p_env->tochdr.starting_track; + p_env->gen.i_tracks = p_env->tochdr.ending_track - + p_env->gen.i_first_track + 1; + + j=0; + for (i=p_env->gen.i_first_track; i<=p_env->gen.i_tracks; i++, j++) { + p_env->tocent[j].track = i; + p_env->tocent[j].address_format = CD_LBA_FORMAT; + + if ( ioctl(p_env->gen.fd, CDIOREADTOCENTRY, &(p_env->tocent[j]) ) ) { + cdio_warn("%s %d: %s\n", + "error in ioctl CDROMREADTOCENTRY for track", + i, strerror(errno)); + return false; + } + } + + p_env->tocent[j].track = CDIO_CDROM_LEADOUT_TRACK; + p_env->tocent[j].address_format = CD_LBA_FORMAT; + if ( ioctl(p_env->gen.fd, CDIOREADTOCENTRY, &(p_env->tocent[j]) ) ){ + cdio_warn("%s: %s\n", + "error in ioctl CDROMREADTOCENTRY for leadout track", + strerror(errno)); + return false; + } + + p_env->gen.toc_init = true; + return true; +} + +/*! + Eject media. Return 1 if successful, 0 otherwise. + */ +static int +_eject_media_freebsd (void *user_data) +{ + _img_private_t *p_env = user_data; + + return (p_env->access_mode == _AM_IOCTL) + ? eject_media_freebsd_ioctl(p_env) + : eject_media_freebsd_cam(p_env); +} + +/*! + Return the value associated with the key "arg". +*/ +static const char * +_get_arg_freebsd (void *user_data, const char key[]) +{ + _img_private_t *env = user_data; + + if (!strcmp (key, "source")) { + return env->gen.source_name; + } else if (!strcmp (key, "access-mode")) { + switch (env->access_mode) { + case _AM_IOCTL: + return "ioctl"; + case _AM_CAM: + return "CAM"; + case _AM_NONE: + return "no access method"; + } + } + return NULL; +} + +/*! + 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. + + */ +static char * +_get_mcn_freebsd (const void *p_user_data) { + + const _img_private_t *p_env = p_user_data; + + return (p_env->access_mode == _AM_IOCTL) + ? get_mcn_freebsd_ioctl(p_env) + : scsi_mmc_get_mcn(p_env->gen.cdio); + +} + +static void +get_drive_cap_freebsd (const void *p_user_data, + cdio_drive_read_cap_t *p_read_cap, + cdio_drive_write_cap_t *p_write_cap, + cdio_drive_misc_cap_t *p_misc_cap) +{ + const _img_private_t *p_env = p_user_data; + + if (p_env->access_mode == _AM_CAM) + scsi_mmc_get_drive_cap_generic (p_user_data, p_read_cap, p_write_cap, + p_misc_cap); + +} + +/*! + Run a SCSI MMC command. + + p_user_data internal CD structure. + i_timeout_ms time in milliseconds we will wait for the command + to complete. If this value is -1, use the default + time-out value. + i_cdb Size of p_cdb + p_cdb CDB bytes. + e_direction direction the transfer is to go. + i_buf Size of buffer + p_buf Buffer for data, both sending and receiving + + Return 0 if no error. + */ +static int +run_scsi_cmd_freebsd( const void *p_user_data, unsigned int i_timeout_ms, + unsigned int i_cdb, const scsi_mmc_cdb_t *p_cdb, + scsi_mmc_direction_t e_direction, + unsigned int i_buf, /*in/out*/ void *p_buf ) +{ + const _img_private_t *p_env = p_user_data; + + if (p_env->access_mode == _AM_CAM) + return run_scsi_cmd_freebsd_cam( p_user_data, i_timeout_ms, i_cdb, p_cdb, + e_direction, i_buf, p_buf ); + else + return 2; +} + +/*! + Get format of track. + + FIXME: We're just guessing this from the GNU/Linux code. + +*/ +static track_format_t +_get_track_format_freebsd(void *p_user_data, track_t i_track) +{ + _img_private_t *p_env = p_user_data; + + if (!p_env->gen.toc_init) read_toc_freebsd (p_user_data) ; + + if (i_track > TOTAL_TRACKS || i_track == 0) + return TRACK_FORMAT_ERROR; + + i_track -= FIRST_TRACK_NUM; + + /* This is pretty much copied from the "badly broken" cdrom_count_tracks + in linux/cdrom.c. + */ + if (p_env->tocent[i_track].entry.control & CDIO_CDROM_DATA_TRACK) { + if (p_env->tocent[i_track].address_format == CDIO_CDROM_CDI_TRACK) + return TRACK_FORMAT_CDI; + else if (p_env->tocent[i_track].address_format == CDIO_CDROM_XA_TRACK) + 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? +*/ +static bool +_get_track_green_freebsd(void *user_data, track_t i_track) +{ + _img_private_t *p_env = user_data; + + if (i_track == CDIO_CDROM_LEADOUT_TRACK) i_track = TOTAL_TRACKS+1; + + if (i_track > TOTAL_TRACKS+1 || i_track == 0) + return false; + + /* FIXME: Dunno if this is the right way, but it's what + I was using in cdinfo for a while. + */ + return ((p_env->tocent[i_track-FIRST_TRACK_NUM].entry.control & 2) != 0); +} + +/*! + Return the starting LSN track number + i_track in obj. Track numbers start at 1. + The "leadout" track is specified either by + using i_track LEADOUT_TRACK or the total tracks+1. + CDIO_INVALID_LBA is returned if there is no track entry. +*/ +static lba_t +_get_track_lba_freebsd(void *user_data, track_t i_track) +{ + _img_private_t *p_env = user_data; + + if (!p_env->gen.toc_init) read_toc_freebsd (p_env) ; + + if (i_track == CDIO_CDROM_LEADOUT_TRACK) i_track = TOTAL_TRACKS+1; + + if (i_track > TOTAL_TRACKS+1 || i_track == 0 || !p_env->gen.toc_init) { + return CDIO_INVALID_LBA; + } else { + return cdio_lsn_to_lba(ntohl(p_env->tocent[i_track-FIRST_TRACK_NUM].entry.addr.lba)); + } +} + +#endif /* HAVE_FREEBSD_CDROM */ + +/*! + Return an array of strings giving possible CD devices. + */ +char ** +cdio_get_devices_freebsd (void) +{ +#ifndef HAVE_FREEBSD_CDROM + return NULL; +#else + char drive[40]; + char **drives = NULL; + unsigned int num_drives=0; + bool exists=true; + char c; + + /* Scan the system for CD-ROM drives. + */ + +#ifdef USE_ETC_FSTAB + + struct fstab *fs; + setfsent(); + + /* Check what's in /etc/fstab... */ + while ( (fs = getfsent()) ) + { + if (strncmp(fs->fs_spec, "/dev/sr", 7)) + cdio_add_device_list(&drives, fs->fs_spec, &num_drives); + } + +#endif + + /* Scan the system for CD-ROM drives. + Not always 100% reliable, so use the USE_MNTENT code above first. + */ + + /* Scan SCSI and CAM devices */ + for ( c='0'; exists && c <='9'; c++ ) { + sprintf(drive, "/dev/cd%c%s", c, DEVICE_POSTFIX); + exists = cdio_is_cdrom(drive, NULL); + if ( exists ) { + cdio_add_device_list(&drives, drive, &num_drives); + } + } + + /* Scan are ATAPI devices */ + for ( c='0'; exists && c <='9'; c++ ) { + sprintf(drive, "/dev/acd%c%s", c, DEVICE_POSTFIX); + exists = cdio_is_cdrom(drive, NULL); + if ( exists ) { + cdio_add_device_list(&drives, drive, &num_drives); + } + } + cdio_add_device_list(&drives, NULL, &num_drives); + return drives; +#endif /*HAVE_FREEBSD_CDROM*/ +} + +/*! + Return a string containing the default CD device if none is specified. + */ +char * +cdio_get_default_device_freebsd() +{ +#ifndef HAVE_FREEBSD_CDROM + return NULL; +#else + char drive[40]; + bool exists=true; + char c; + + /* Scan the system for CD-ROM drives. + */ + +#ifdef USE_ETC_FSTAB + + struct fstab *fs; + setfsent(); + + /* Check what's in /etc/fstab... */ + while ( (fs = getfsent()) ) + { + if (strncmp(fs->fs_spec, "/dev/sr", 7)) + return strdup(fs->fs_spec); + } + +#endif + + /* Scan the system for CD-ROM drives. + Not always 100% reliable, so use the USE_MNTENT code above first. + */ + + /* Scan SCSI and CAM devices */ + for ( c='0'; exists && c <='9'; c++ ) { + sprintf(drive, "/dev/cd%c%s", c, DEVICE_POSTFIX); + exists = cdio_is_cdrom(drive, NULL); + if ( exists ) { + return strdup(drive); + } + } + + /* Scan are ATAPI devices */ + for ( c='0'; exists && c <='9'; c++ ) { + sprintf(drive, "/dev/acd%c%s", c, DEVICE_POSTFIX); + exists = cdio_is_cdrom(drive, NULL); + if ( exists ) { + return strdup(drive); + } + } + return NULL; +#endif /*HAVE_FREEBSD_CDROM*/ +} + +/*! + Initialization routine. This is the only thing that doesn't + get called via a function pointer. In fact *we* are the + ones to set that up. + */ +CdIo * +cdio_open_freebsd (const char *psz_source_name) +{ + return cdio_open_am_freebsd(psz_source_name, NULL); +} + + +/*! + Initialization routine. This is the only thing that doesn't + get called via a function pointer. In fact *we* are the + ones to set that up. + */ +CdIo * +cdio_open_am_freebsd (const char *psz_orig_source_name, + const char *psz_access_mode) +{ + +#ifdef HAVE_FREEBSD_CDROM + CdIo *ret; + _img_private_t *_data; + char *psz_source_name; + + cdio_funcs _funcs = { + .eject_media = _eject_media_freebsd, + .free = _free_freebsd, + .get_arg = _get_arg_freebsd, + .get_cdtext = get_cdtext_generic, + .get_default_device = cdio_get_default_device_freebsd, + .get_devices = cdio_get_devices_freebsd, + .get_discmode = get_discmode_generic, + .get_drive_cap = get_drive_cap_freebsd, + .get_first_track_num= get_first_track_num_generic, + .get_mcn = _get_mcn_freebsd, + .get_num_tracks = get_num_tracks_generic, + .get_track_format = _get_track_format_freebsd, + .get_track_green = _get_track_green_freebsd, + .get_track_lba = _get_track_lba_freebsd, + .get_track_msf = NULL, + .lseek = cdio_generic_lseek, + .read = cdio_generic_read, + .read_audio_sectors = _read_audio_sectors_freebsd, + .read_mode2_sector = _read_mode2_sector_freebsd, + .read_mode2_sectors = _read_mode2_sectors_freebsd, + .read_toc = read_toc_freebsd, + .run_scsi_mmc_cmd = run_scsi_cmd_freebsd, + .set_arg = _set_arg_freebsd, + .stat_size = _stat_size_freebsd + }; + + _data = _cdio_malloc (sizeof (_img_private_t)); + _data->access_mode = str_to_access_mode_freebsd(psz_access_mode); + _data->gen.init = false; + _data->gen.fd = -1; + _data->gen.toc_init = false; + _data->gen.b_cdtext_init = false; + _data->gen.b_cdtext_error = false; + + if (NULL == psz_orig_source_name) { + psz_source_name=cdio_get_default_device_freebsd(); + if (NULL == psz_source_name) return NULL; + _data->device = psz_source_name; + _set_arg_freebsd(_data, "source", psz_source_name); + } else { + if (cdio_is_device_generic(psz_orig_source_name)) { + _set_arg_freebsd(_data, "source", psz_orig_source_name); + _data->device = strdup(psz_orig_source_name); + } else { + /* The below would be okay if all device drivers worked this way. */ +#if 0 + cdio_info ("source %s is a not a device", psz_orig_source_name); +#endif + return NULL; + } + } + + ret = cdio_new ((void *)_data, &_funcs); + if (ret == NULL) return NULL; + + if (cdio_generic_init(_data)) + if ( _data->access_mode == _AM_IOCTL ) { + return ret; + } else { + if (init_freebsd_cam(_data)) + return ret; + else { + cdio_generic_free (_data); + return NULL; + } + } + else { + cdio_generic_free (_data); + return NULL; + } + +#else + return NULL; +#endif /* HAVE_FREEBSD_CDROM */ + +} + +bool +cdio_have_freebsd (void) +{ +#ifdef HAVE_FREEBSD_CDROM + return true; +#else + return false; +#endif /* HAVE_FREEBSD_CDROM */ +} |