diff options
| -rw-r--r-- | src/input/vcd/libcdio/_cdio_linux.c | 1198 |
1 files changed, 0 insertions, 1198 deletions
diff --git a/src/input/vcd/libcdio/_cdio_linux.c b/src/input/vcd/libcdio/_cdio_linux.c deleted file mode 100644 index acc04a839..000000000 --- a/src/input/vcd/libcdio/_cdio_linux.c +++ /dev/null @@ -1,1198 +0,0 @@ -/* - $Id: _cdio_linux.c,v 1.4 2006/09/26 22:18:44 dgp85 Exp $ - - Copyright (C) 2001 Herbert Valerio Riedel <hvr@gnu.org> - Copyright (C) 2002, 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 Linux-specific code and implements low-level - control of the CD drive. -*/ - -#ifdef HAVE_CONFIG_H -# include "config.h" -#endif - -static const char _rcsid[] = "$Id: _cdio_linux.c,v 1.4 2006/09/26 22:18:44 dgp85 Exp $"; - -#include <string.h> - -#include <cdio/sector.h> -#include <cdio/util.h> -#include <cdio/types.h> -#include <cdio/scsi_mmc.h> -#include <cdio/cdtext.h> -#include "cdtext_private.h" -#include "cdio_assert.h" -#include "cdio_private.h" - -#ifdef HAVE_LINUX_CDROM - -#if defined(HAVE_LINUX_VERSION_H) -# include <linux/version.h> -# if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,16) -# define __CDIO_LINUXCD_BUILD -# else -# error "You need a kernel greater than 2.2.16 to have CDROM support" -# endif -#else -# error "You need <linux/version.h> to have CDROM support" -#endif - -#include <stdio.h> -#include <stdlib.h> -#include <errno.h> -#include <unistd.h> -#include <fcntl.h> -#include <mntent.h> -#include <limits.h> - -#include <linux/cdrom.h> -#include <scsi/scsi.h> -#include <scsi/sg.h> -#include <scsi/scsi_ioctl.h> -#include <sys/mount.h> - -#include <sys/stat.h> -#include <sys/types.h> -#include <sys/ioctl.h> - -typedef enum { - _AM_NONE, - _AM_IOCTL, - _AM_READ_CD, - _AM_READ_10 -} access_mode_t; - -typedef struct { - /* Things common to all drivers like this. - This must be first. */ - generic_img_private_t gen; - - access_mode_t access_mode; - - /* Some of the more OS specific things. */ - /* Entry info for each track, add 1 for leadout. */ - struct cdrom_tocentry tocent[CDIO_CD_MAX_TRACKS+1]; - - struct cdrom_tochdr tochdr; - -} _img_private_t; - -/* Some ioctl() errno values which occur when the tray is empty */ -#define ERRNO_TRAYEMPTY(errno) \ - ((errno == EIO) || (errno == ENOENT) || (errno == EINVAL)) - -/**** prototypes for static functions ****/ -static bool is_cdrom_linux(const char *drive, char *mnttype); -static bool read_toc_linux (void *p_user_data); -static int run_scsi_cmd_linux( const void *p_user_data, - unsigned int i_timeout, - 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 ); -static access_mode_t - -str_to_access_mode_linux(const char *psz_access_mode) -{ - const access_mode_t default_access_mode = _AM_IOCTL; - - if (NULL==psz_access_mode) return default_access_mode; - - if (!strcmp(psz_access_mode, "IOCTL")) - return _AM_IOCTL; - else if (!strcmp(psz_access_mode, "READ_CD")) - return _AM_READ_CD; - else if (!strcmp(psz_access_mode, "READ_10")) - return _AM_READ_10; - else { - cdio_warn ("unknown access type: %s. Default IOCTL used.", - psz_access_mode); - return default_access_mode; - } -} - -static char * -check_mounts_linux(const char *mtab) -{ - FILE *mntfp; - struct mntent *mntent; - - mntfp = setmntent(mtab, "r"); - if ( mntfp != NULL ) { - char *tmp; - char *mnt_type; - char *mnt_dev; - - while ( (mntent=getmntent(mntfp)) != NULL ) { - mnt_type = malloc(strlen(mntent->mnt_type) + 1); - if (mnt_type == NULL) - continue; /* maybe you'll get lucky next time. */ - - mnt_dev = malloc(strlen(mntent->mnt_fsname) + 1); - if (mnt_dev == NULL) { - free(mnt_type); - continue; - } - - strcpy(mnt_type, mntent->mnt_type); - strcpy(mnt_dev, mntent->mnt_fsname); - - /* Handle "supermount" filesystem mounts */ - if ( strcmp(mnt_type, "supermount") == 0 ) { - tmp = strstr(mntent->mnt_opts, "fs="); - if ( tmp ) { - free(mnt_type); - mnt_type = strdup(tmp + strlen("fs=")); - if ( mnt_type ) { - tmp = strchr(mnt_type, ','); - if ( tmp ) { - *tmp = '\0'; - } - } - } - tmp = strstr(mntent->mnt_opts, "dev="); - if ( tmp ) { - free(mnt_dev); - mnt_dev = strdup(tmp + strlen("dev=")); - if ( mnt_dev ) { - tmp = strchr(mnt_dev, ','); - if ( tmp ) { - *tmp = '\0'; - } - } - } - } - if ( strcmp(mnt_type, "iso9660") == 0 ) { - if (is_cdrom_linux(mnt_dev, mnt_type) > 0) { - free(mnt_type); - endmntent(mntfp); - return mnt_dev; - } - } - free(mnt_dev); - free(mnt_type); - } - endmntent(mntfp); - } - return NULL; -} - -/*! - Return the value associated with the key "arg". -*/ -static const char * -get_arg_linux (void *env, const char key[]) -{ - _img_private_t *_obj = env; - - if (!strcmp (key, "source")) { - return _obj->gen.source_name; - } else if (!strcmp (key, "access-mode")) { - switch (_obj->access_mode) { - case _AM_IOCTL: - return "ioctl"; - case _AM_READ_CD: - return "READ_CD"; - case _AM_READ_10: - return "READ_10"; - case _AM_NONE: - return "no access method"; - } - } - return NULL; -} - -#undef USE_LINUX_CAP -#ifdef USE_LINUX_CAP -/*! - Return the the kind of drive capabilities of device. - - Note: string is malloc'd so caller should free() then returned - string when done with it. - - */ -static void -get_drive_cap_linux (const void *p_user_data, - /*out*/ cdio_drive_read_cap_t *p_read_cap, - /*out*/ cdio_drive_write_cap_t *p_write_cap, - /*out*/ cdio_drive_misc_cap_t *p_misc_cap) -{ - const _img_private_t *p_env = p_user_data; - int32_t i_drivetype; - - i_drivetype = ioctl (p_env->gen.fd, CDROM_GET_CAPABILITY, CDSL_CURRENT); - - if (i_drivetype < 0) { - *p_read_cap = CDIO_DRIVE_CAP_ERROR; - *p_write_cap = CDIO_DRIVE_CAP_ERROR; - *p_misc_cap = CDIO_DRIVE_CAP_ERROR; - return; - } - - *p_read_cap = 0; - *p_write_cap = 0; - *p_misc_cap = 0; - - /* Reader */ - if (i_drivetype & CDC_PLAY_AUDIO) - *p_read_cap |= CDIO_DRIVE_CAP_READ_AUDIO; - if (i_drivetype & CDC_CD_R) - *p_read_cap |= CDIO_DRIVE_CAP_READ_CD_R; - if (i_drivetype & CDC_CD_RW) - *p_read_cap |= CDIO_DRIVE_CAP_READ_CD_RW; - if (i_drivetype & CDC_DVD) - *p_read_cap |= CDIO_DRIVE_CAP_READ_DVD_ROM; - - /* Writer */ - if (i_drivetype & CDC_CD_RW) - *p_read_cap |= CDIO_DRIVE_CAP_WRITE_CD_RW; - if (i_drivetype & CDC_DVD_R) - *p_read_cap |= CDIO_DRIVE_CAP_WRITE_DVD_R; - if (i_drivetype & CDC_DVD_RAM) - *p_read_cap |= CDIO_DRIVE_CAP_WRITE_DVD_RAM; - - /* Misc */ - if (i_drivetype & CDC_CLOSE_TRAY) - *p_misc_cap |= CDIO_DRIVE_CAP_MISC_CLOSE_TRAY; - if (i_drivetype & CDC_OPEN_TRAY) - *p_misc_cap |= CDIO_DRIVE_CAP_MISC_EJECT; - if (i_drivetype & CDC_LOCK) - *p_misc_cap |= CDIO_DRIVE_CAP_MISC_LOCK; - if (i_drivetype & CDC_SELECT_SPEED) - *p_misc_cap |= CDIO_DRIVE_CAP_MISC_SELECT_SPEED; - if (i_drivetype & CDC_SELECT_DISC) - *p_misc_cap |= CDIO_DRIVE_CAP_MISC_SELECT_DISC; - if (i_drivetype & CDC_MULTI_SESSION) - *p_misc_cap |= CDIO_DRIVE_CAP_MISC_MULTI_SESSION; - if (i_drivetype & CDC_MEDIA_CHANGED) - *p_misc_cap |= CDIO_DRIVE_CAP_MISC_MEDIA_CHANGED; - if (i_drivetype & CDC_RESET) - *p_misc_cap |= CDIO_DRIVE_CAP_MISC_RESET; -} -#endif - -/*! - Return the media catalog number MCN. - - Note: string is malloc'd so caller should free() then returned - string when done with it. - - */ -static char * -get_mcn_linux (const void *p_user_data) { - - struct cdrom_mcn mcn; - const _img_private_t *p_env = p_user_data; - memset(&mcn, 0, sizeof(mcn)); - if (ioctl(p_env->gen.fd, CDROM_GET_MCN, &mcn) != 0) - return NULL; - return strdup(mcn.medium_catalog_number); -} - -/*! - Get format of track. -*/ -static track_format_t -get_track_format_linux(void *p_user_data, track_t i_track) -{ - _img_private_t *p_env = p_user_data; - - if ( !p_env ) return TRACK_FORMAT_ERROR; - - if (!p_env->gen.toc_init) read_toc_linux (p_user_data) ; - - if (i_track > (p_env->gen.i_tracks+p_env->gen.i_first_track) - || i_track < p_env->gen.i_first_track) - return TRACK_FORMAT_ERROR; - - i_track -= p_env->gen.i_first_track; - - /* This is pretty much copied from the "badly broken" cdrom_count_tracks - in linux/cdrom.c. - */ - if (p_env->tocent[i_track].cdte_ctrl & CDIO_CDROM_DATA_TRACK) { - if (p_env->tocent[i_track].cdte_format == CDIO_CDROM_CDI_TRACK) - return TRACK_FORMAT_CDI; - else if (p_env->tocent[i_track].cdte_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_linux(void *p_user_data, track_t i_track) -{ - _img_private_t *p_env = p_user_data; - - if (!p_env->gen.toc_init) read_toc_linux (p_user_data) ; - - if (i_track >= (p_env->gen.i_tracks+p_env->gen.i_first_track) - || i_track < p_env->gen.i_first_track) - return false; - - i_track -= p_env->gen.i_first_track; - - /* FIXME: Dunno if this is the right way, but it's what - I was using in cd-info for a while. - */ - return ((p_env->tocent[i_track].cdte_ctrl & 2) != 0); -} - -/*! - Return the starting MSF (minutes/secs/frames) for track number - track_num in obj. Track numbers usually start at something - greater than 0, usually 1. - - The "leadout" track is specified either by - using i_track LEADOUT_TRACK or the total tracks+1. - False is returned if there is no track entry. -*/ -static bool -get_track_msf_linux(void *p_user_data, track_t i_track, msf_t *msf) -{ - _img_private_t *p_env = p_user_data; - - if (NULL == msf) return false; - - if (!p_env->gen.toc_init) read_toc_linux (p_user_data) ; - - if (i_track == CDIO_CDROM_LEADOUT_TRACK) - i_track = p_env->gen.i_tracks + p_env->gen.i_first_track; - - if (i_track > (p_env->gen.i_tracks+p_env->gen.i_first_track) - || i_track < p_env->gen.i_first_track) { - return false; - } else { - struct cdrom_msf0 *msf0= - &p_env->tocent[i_track-p_env->gen.i_first_track].cdte_addr.msf; - msf->m = cdio_to_bcd8(msf0->minute); - msf->s = cdio_to_bcd8(msf0->second); - msf->f = cdio_to_bcd8(msf0->frame); - return true; - } -} - -/*! - Eject media in CD drive. - Return 0 if success and 1 for failure, and 2 if no routine. - */ -static int -eject_media_linux (void *p_user_data) { - - _img_private_t *p_env = p_user_data; - int ret=2; - int status; - int fd; - - if ((fd = open (p_env->gen.source_name, O_RDONLY|O_NONBLOCK)) > -1) { - if((status = ioctl(fd, CDROM_DRIVE_STATUS, CDSL_CURRENT)) > 0) { - switch(status) { - case CDS_TRAY_OPEN: - if((ret = ioctl(fd, CDROMCLOSETRAY)) != 0) { - cdio_warn ("ioctl CDROMCLOSETRAY failed: %s\n", strerror(errno)); - ret = 1; - } - break; - case CDS_DISC_OK: - if((ret = ioctl(fd, CDROMEJECT)) != 0) { - int eject_error = errno; - /* Try ejecting the MMC way... */ - ret = scsi_mmc_eject_media(p_env->gen.cdio); - if (0 != ret) { - cdio_warn("ioctl CDROMEJECT failed: %s\n", - strerror(eject_error)); - ret = 1; - } - } - /* force kernel to reread partition table when new disc inserted */ - ret = ioctl(p_env->gen.fd, BLKRRPART); - break; - default: - cdio_warn ("Unknown CD-ROM (%d)\n", status); - ret = 1; - } - } else { - cdio_warn ("CDROM_DRIVE_STATUS failed: %s\n", strerror(errno)); - ret=1; - } - close(fd); - } else - ret = 2; - close(p_env->gen.fd); - p_env->gen.fd = -1; - return ret; -} - -/*! - Get disc type associated with the cd object. -*/ -static discmode_t -get_discmode_linux (void *p_user_data) -{ - _img_private_t *p_env = p_user_data; - - int32_t i_discmode; - - /* See if this is a DVD. */ - cdio_dvd_struct_t dvd; /* DVD READ STRUCT for layer 0. */ - - dvd.physical.type = CDIO_DVD_STRUCT_PHYSICAL; - dvd.physical.layer_num = 0; - if (0 == ioctl (p_env->gen.fd, DVD_READ_STRUCT, &dvd)) { - switch(dvd.physical.layer[0].book_type) { - case CDIO_DVD_BOOK_DVD_ROM: return CDIO_DISC_MODE_DVD_ROM; - case CDIO_DVD_BOOK_DVD_RAM: return CDIO_DISC_MODE_DVD_RAM; - case CDIO_DVD_BOOK_DVD_R: return CDIO_DISC_MODE_DVD_R; - case CDIO_DVD_BOOK_DVD_RW: return CDIO_DISC_MODE_DVD_RW; - case CDIO_DVD_BOOK_DVD_PR: return CDIO_DISC_MODE_DVD_PR; - case CDIO_DVD_BOOK_DVD_PRW: return CDIO_DISC_MODE_DVD_PRW; - default: return CDIO_DISC_MODE_DVD_OTHER; - } - } - - i_discmode = ioctl (p_env->gen.fd, CDROM_DISC_STATUS); - - if (i_discmode < 0) return CDIO_DISC_MODE_ERROR; - - /* FIXME Need to add getting DVD types. */ - switch(i_discmode) { - case CDS_AUDIO: - return CDIO_DISC_MODE_CD_DA; - case CDS_DATA_1: - case CDS_DATA_2: - return CDIO_DISC_MODE_CD_DATA; - case CDS_MIXED: - return CDIO_DISC_MODE_CD_MIXED; - case CDS_XA_2_1: - case CDS_XA_2_2: - return CDIO_DISC_MODE_CD_XA; - case CDS_NO_INFO: - return CDIO_DISC_MODE_NO_INFO; - default: - return CDIO_DISC_MODE_ERROR; - } -} - -/* 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 -is_cdrom_linux(const char *drive, char *mnttype) -{ - bool is_cd=false; - int cdfd; - struct cdrom_tochdr 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_NONBLOCK), 0); - if ( cdfd >= 0 ) { - if ( ioctl(cdfd, CDROMREADTOCHDR, &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); -} - -/* MMC driver to read audio sectors. - Can read only up to 25 blocks. -*/ -static int -_read_audio_sectors_linux (void *p_user_data, void *buf, lsn_t lsn, - unsigned int nblocks) -{ - _img_private_t *p_env = p_user_data; - return scsi_mmc_read_sectors( p_env->gen.cdio, buf, lsn, - CDIO_MMC_READ_TYPE_CDDA, nblocks); -} - -/* Packet driver to read mode2 sectors. - Can read only up to 25 blocks. -*/ -static int -_read_mode2_sectors_mmc (_img_private_t *p_env, void *p_buf, lba_t lba, - unsigned int nblocks, bool b_read_10) -{ - scsi_mmc_cdb_t cdb = {{0, }}; - - CDIO_MMC_SET_READ_LBA(cdb.field, lba); - - if (b_read_10) { - int retval; - - CDIO_MMC_SET_COMMAND(cdb.field, CDIO_MMC_GPCMD_READ_10); - CDIO_MMC_SET_READ_LENGTH16(cdb.field, nblocks); - - if ((retval = scsi_mmc_set_blocksize (p_env->gen.cdio, M2RAW_SECTOR_SIZE))) - return retval; - - if ((retval = run_scsi_cmd_linux (p_env, 0, - scsi_mmc_get_cmd_len(cdb.field[0]), - &cdb, - SCSI_MMC_DATA_READ, - M2RAW_SECTOR_SIZE * nblocks, - p_buf))) - { - scsi_mmc_set_blocksize (p_env->gen.cdio, CDIO_CD_FRAMESIZE); - return retval; - } - - if ((retval = scsi_mmc_set_blocksize (p_env->gen.cdio, CDIO_CD_FRAMESIZE))) - return retval; - } else - - cdb.field[1] = 0; /* sector size mode2 */ - cdb.field[9] = 0x58; /* 2336 mode2 */ - - CDIO_MMC_SET_COMMAND(cdb.field, CDIO_MMC_GPCMD_READ_CD); - CDIO_MMC_SET_READ_LENGTH24(cdb.field, nblocks); - - return run_scsi_cmd_linux (p_env, 0, - scsi_mmc_get_cmd_len(cdb.field[0]), &cdb, - SCSI_MMC_DATA_READ, - M2RAW_SECTOR_SIZE * nblocks, p_buf); - - return 0; -} - -static int -_read_mode2_sectors (_img_private_t *p_env, void *p_buf, lba_t lba, - unsigned int nblocks, bool b_read_10) -{ - unsigned int l = 0; - int retval = 0; - - while (nblocks > 0) - { - const unsigned nblocks2 = (nblocks > 25) ? 25 : nblocks; - void *p_buf2 = ((char *)p_buf ) + (l * M2RAW_SECTOR_SIZE); - - retval |= _read_mode2_sectors_mmc (p_env, p_buf2, lba + l, - nblocks2, b_read_10); - - if (retval) - break; - - nblocks -= nblocks2; - l += nblocks2; - } - - return retval; -} - -/*! - Reads a single mode1 sector from cd device into data starting - from lsn. Returns 0 if no error. - */ -static int -_read_mode1_sector_linux (void *p_user_data, void *p_data, lsn_t lsn, - bool b_form2) -{ - -#if FIXED - char buf[M2RAW_SECTOR_SIZE] = { 0, }; - struct cdrom_msf *p_msf = (struct cdrom_msf *) &buf; - msf_t _msf; - - _img_private_t *p_env = p_user_data; - - cdio_lba_to_msf (cdio_lsn_to_lba(lsn), &_msf); - msf->cdmsf_min0 = cdio_from_bcd8(_msf.m); - msf->cdmsf_sec0 = cdio_from_bcd8(_msf.s); - msf->cdmsf_frame0 = cdio_from_bcd8(_msf.f); - - retry: - switch (p_env->access_mode) - { - case _AM_NONE: - cdio_warn ("no way to read mode1"); - return 1; - break; - - case _AM_IOCTL: - if (ioctl (p_env->gen.fd, CDROMREADMODE1, &buf) == -1) - { - perror ("ioctl()"); - return 1; - /* exit (EXIT_FAILURE); */ - } - break; - - case _AM_READ_CD: - case _AM_READ_10: - if (_read_mode2_sectors (p_env->gen.fd, buf, lsn, 1, - (p_env->access_mode == _AM_READ_10))) - { - perror ("ioctl()"); - if (p_env->access_mode == _AM_READ_CD) - { - cdio_info ("READ_CD failed; switching to READ_10 mode..."); - p_env->access_mode = _AM_READ_10; - goto retry; - } - else - { - cdio_info ("READ_10 failed; switching to ioctl(CDROMREADMODE2) mode..."); - p_env->access_mode = _AM_IOCTL; - goto retry; - } - return 1; - } - break; - } - - memcpy (data, buf + CDIO_CD_SYNC_SIZE + CDIO_CD_HEADER_SIZE, - b_form2 ? M2RAW_SECTOR_SIZE: CDIO_CD_FRAMESIZE); - -#else - return cdio_generic_read_form1_sector(p_user_data, p_data, lsn); -#endif - return 0; -} - -/*! - Reads nblocks of mode2 sectors from cd device into data starting - from lsn. - Returns 0 if no error. - */ -static int -_read_mode1_sectors_linux (void *p_user_data, void *p_data, lsn_t lsn, - bool b_form2, unsigned int nblocks) -{ - _img_private_t *p_env = p_user_data; - unsigned int i; - int retval; - unsigned int blocksize = b_form2 ? M2RAW_SECTOR_SIZE : CDIO_CD_FRAMESIZE; - - for (i = 0; i < nblocks; i++) { - if ( (retval = _read_mode1_sector_linux (p_env, - ((char *)p_data) + (blocksize*i), - lsn + i, b_form2)) ) - return retval; - } - return 0; -} - -/*! - Reads a single mode2 sector from cd device into data starting - from lsn. Returns 0 if no error. - */ -static int -_read_mode2_sector_linux (void *p_user_data, void *p_data, lsn_t lsn, - bool b_form2) -{ - char buf[M2RAW_SECTOR_SIZE] = { 0, }; - struct cdrom_msf *msf = (struct cdrom_msf *) &buf; - msf_t _msf; - - _img_private_t *p_env = p_user_data; - - cdio_lba_to_msf (cdio_lsn_to_lba(lsn), &_msf); - msf->cdmsf_min0 = cdio_from_bcd8(_msf.m); - msf->cdmsf_sec0 = cdio_from_bcd8(_msf.s); - msf->cdmsf_frame0 = cdio_from_bcd8(_msf.f); - - retry: - switch (p_env->access_mode) - { - case _AM_NONE: - cdio_warn ("no way to read mode2"); - return 1; - break; - - case _AM_IOCTL: - if (ioctl (p_env->gen.fd, CDROMREADMODE2, &buf) == -1) - { - perror ("ioctl()"); - return 1; - /* exit (EXIT_FAILURE); */ - } - break; - - case _AM_READ_CD: - case _AM_READ_10: - if (_read_mode2_sectors (p_env, buf, lsn, 1, - (p_env->access_mode == _AM_READ_10))) - { - perror ("ioctl()"); - if (p_env->access_mode == _AM_READ_CD) - { - cdio_info ("READ_CD failed; switching to READ_10 mode..."); - p_env->access_mode = _AM_READ_10; - goto retry; - } - else - { - cdio_info ("READ_10 failed; switching to ioctl(CDROMREADMODE2) mode..."); - p_env->access_mode = _AM_IOCTL; - goto retry; - } - return 1; - } - break; - } - - if (b_form2) - memcpy (p_data, buf, M2RAW_SECTOR_SIZE); - else - memcpy (((char *)p_data), buf + CDIO_CD_SUBHEADER_SIZE, CDIO_CD_FRAMESIZE); - - return 0; -} - -/*! - Reads nblocks of mode2 sectors from cd device into data starting - from lsn. - Returns 0 if no error. - */ -static int -_read_mode2_sectors_linux (void *p_user_data, void *data, lsn_t lsn, - bool b_form2, unsigned int nblocks) -{ - _img_private_t *p_env = p_user_data; - 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; - if ( (retval = _read_mode2_sector_linux (p_env, - ((char *)data) + (i_blocksize*i), - lsn + i, b_form2)) ) - return retval; - } - return 0; -} - -/*! - Read and cache the CD's Track Table of Contents and track info. - Return false if successful or true if an error. -*/ -static bool -read_toc_linux (void *p_user_data) -{ - _img_private_t *p_env = p_user_data; - int i; - - /* read TOC header */ - if ( ioctl(p_env->gen.fd, CDROMREADTOCHDR, &p_env->tochdr) == -1 ) { - cdio_warn("%s: %s\n", - "error in ioctl CDROMREADTOCHDR", strerror(errno)); - return false; - } - - p_env->gen.i_first_track = p_env->tochdr.cdth_trk0; - p_env->gen.i_tracks = p_env->tochdr.cdth_trk1; - - /* read individual tracks */ - for (i= p_env->gen.i_first_track; i<=p_env->gen.i_tracks; i++) { - p_env->tocent[i-p_env->gen.i_first_track].cdte_track = i; - p_env->tocent[i-p_env->gen.i_first_track].cdte_format = CDROM_MSF; - if ( ioctl(p_env->gen.fd, CDROMREADTOCENTRY, - &p_env->tocent[i-p_env->gen.i_first_track]) == -1 ) { - cdio_warn("%s %d: %s\n", - "error in ioctl CDROMREADTOCENTRY for track", - i, strerror(errno)); - return false; - } - /**** - struct cdrom_msf0 *msf= &env->tocent[i-1].cdte_addr.msf; - - fprintf (stdout, "--- track# %d (msf %2.2x:%2.2x:%2.2x)\n", - i, msf->minute, msf->second, msf->frame); - ****/ - - } - - /* read the lead-out track */ - p_env->tocent[p_env->gen.i_tracks].cdte_track = CDIO_CDROM_LEADOUT_TRACK; - p_env->tocent[p_env->gen.i_tracks].cdte_format = CDROM_MSF; - - if (ioctl(p_env->gen.fd, CDROMREADTOCENTRY, - &p_env->tocent[p_env->gen.i_tracks]) == -1 ) { - cdio_warn("%s: %s\n", - "error in ioctl CDROMREADTOCENTRY for lead-out", - strerror(errno)); - return false; - } - - /* - struct cdrom_msf0 *msf= &env->tocent[p_env->gen.i_tracks].cdte_addr.msf; - - fprintf (stdout, "--- track# %d (msf %2.2x:%2.2x:%2.2x)\n", - i, msf->minute, msf->second, msf->frame); - */ - - p_env->gen.toc_init = true; - return true; -} - -/*! - Run a SCSI MMC command. - - cdio CD structure set by cdio_open(). - i_timeout time in milliseconds we will wait for the command - to complete. If this value is -1, use the default - time-out value. - p_buf Buffer for data, both sending and receiving - i_buf Size of buffer - e_direction direction the transfer is to go. - cdb CDB bytes. All values that are needed should be set on - input. We'll figure out what the right CDB length should be. - - We return true if command completed successfully and false if not. - */ -static int -run_scsi_cmd_linux( 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; - struct cdrom_generic_command cgc; - memset (&cgc, 0, sizeof (struct cdrom_generic_command)); - memcpy(&cgc.cmd, p_cdb, i_cdb); - cgc.buflen = i_buf; - cgc.buffer = p_buf; - cgc.data_direction = (SCSI_MMC_DATA_READ == cgc.data_direction) - ? CGC_DATA_READ : CGC_DATA_WRITE; - -#ifdef HAVE_LINUX_CDROM_TIMEOUT - cgc.timeout = i_timeout_ms; -#endif - - return ioctl (p_env->gen.fd, CDROM_SEND_PACKET, &cgc); -} - -/*! - Return the size of the CD in logical block address (LBA) units. - */ -static uint32_t -stat_size_linux (void *p_user_data) -{ - _img_private_t *p_env = p_user_data; - - struct cdrom_tocentry tocent; - uint32_t size; - - tocent.cdte_track = CDIO_CDROM_LEADOUT_TRACK; - tocent.cdte_format = CDROM_LBA; - if (ioctl (p_env->gen.fd, CDROMREADTOCENTRY, &tocent) == -1) - { - perror ("ioctl(CDROMREADTOCENTRY)"); - exit (EXIT_FAILURE); - } - - size = tocent.cdte_addr.lba; - - return size; -} - -/*! - Set the arg "key" with "value" in the source device. - Currently "source" and "access-mode" are valid keys. - "source" sets the source device in I/O operations - "access-mode" sets the the method of CD access - - 0 is returned if no error was found, and nonzero if there as an error. -*/ -static int -set_arg_linux (void *p_user_data, const char key[], const char value[]) -{ - _img_private_t *p_env = p_user_data; - - if (!strcmp (key, "source")) - { - if (!value) - return -2; - - free (p_env->gen.source_name); - - p_env->gen.source_name = strdup (value); - } - else if (!strcmp (key, "access-mode")) - { - return str_to_access_mode_linux(value); - } - else - return -1; - - return 0; -} - -/* checklist: /dev/cdrom, /dev/dvd /dev/hd?, /dev/scd? /dev/sr? */ -static char checklist1[][40] = { - {"cdrom"}, {"dvd"}, {""} -}; -static char checklist2[][40] = { - {"?a hd?"}, {"?0 scd?"}, {"?0 sr?"}, {""} -}; - -#endif /* HAVE_LINUX_CDROM */ - -/*! - Return an array of strings giving possible CD devices. - */ -char ** -cdio_get_devices_linux (void) -{ -#ifndef HAVE_LINUX_CDROM - return NULL; -#else - unsigned int i; - char drive[40]; - char *ret_drive; - bool exists; - char **drives = NULL; - unsigned int num_drives=0; - - /* Scan the system for CD-ROM drives. - */ - for ( i=0; strlen(checklist1[i]) > 0; ++i ) { - sprintf(drive, "/dev/%s", checklist1[i]); - if ( (exists=is_cdrom_linux(drive, NULL)) > 0 ) { - cdio_add_device_list(&drives, drive, &num_drives); - } - } - - /* Now check the currently mounted CD drives */ - if (NULL != (ret_drive = check_mounts_linux("/etc/mtab"))) { - cdio_add_device_list(&drives, ret_drive, &num_drives); - free(ret_drive); - } - - /* Finally check possible mountable drives in /etc/fstab */ - if (NULL != (ret_drive = check_mounts_linux("/etc/fstab"))) { - cdio_add_device_list(&drives, ret_drive, &num_drives); - free(ret_drive); - } - - /* Scan the system for CD-ROM drives. - Not always 100% reliable, so use the USE_MNTENT code above first. - */ - for ( i=0; strlen(checklist2[i]) > 0; ++i ) { - unsigned int j; - char *insert; - exists = true; - for ( j=checklist2[i][1]; exists; ++j ) { - sprintf(drive, "/dev/%s", &checklist2[i][3]); - insert = strchr(drive, '?'); - if ( insert != NULL ) { - *insert = j; - } - if ( (exists=is_cdrom_linux(drive, NULL)) > 0 ) { - cdio_add_device_list(&drives, drive, &num_drives); - } - } - } - cdio_add_device_list(&drives, NULL, &num_drives); - return drives; -#endif /*HAVE_LINUX_CDROM*/ -} - -/*! - Return a string containing the default CD device. - */ -char * -cdio_get_default_device_linux(void) -{ -#ifndef HAVE_LINUX_CDROM - return NULL; - -#else - unsigned int i; - char drive[40]; - bool exists; - char *ret_drive; - - /* Scan the system for CD-ROM drives. - */ - for ( i=0; strlen(checklist1[i]) > 0; ++i ) { - sprintf(drive, "/dev/%s", checklist1[i]); - if ( (exists=is_cdrom_linux(drive, NULL)) > 0 ) { - return strdup(drive); - } - } - - /* Now check the currently mounted CD drives */ - if (NULL != (ret_drive = check_mounts_linux("/etc/mtab"))) - return ret_drive; - - /* Finally check possible mountable drives in /etc/fstab */ - if (NULL != (ret_drive = check_mounts_linux("/etc/fstab"))) - return ret_drive; - - /* Scan the system for CD-ROM drives. - Not always 100% reliable, so use the USE_MNTENT code above first. - */ - for ( i=0; strlen(checklist2[i]) > 0; ++i ) { - unsigned int j; - char *insert; - exists = true; - for ( j=checklist2[i][1]; exists; ++j ) { - sprintf(drive, "/dev/%s", &checklist2[i][3]); - insert = strchr(drive, '?'); - if ( insert != NULL ) { - *insert = j; - } - if ( (exists=is_cdrom_linux(drive, NULL)) > 0 ) { - return(strdup(drive)); - } - } - } - return NULL; -#endif /*HAVE_LINUX_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_linux (const char *psz_source_name) -{ - return cdio_open_am_linux(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_linux (const char *psz_orig_source, const char *access_mode) -{ - -#ifdef HAVE_LINUX_CDROM - CdIo *ret; - _img_private_t *_data; - char *psz_source; - - cdio_funcs _funcs = { - .eject_media = eject_media_linux, - .free = cdio_generic_free, - .get_arg = get_arg_linux, - .get_cdtext = get_cdtext_generic, - .get_default_device = cdio_get_default_device_linux, - .get_devices = cdio_get_devices_linux, - .get_discmode = get_discmode_linux, -#if USE_LINUX_CAP - .get_drive_cap = get_drive_cap_linux, -#else - .get_drive_cap = scsi_mmc_get_drive_cap_generic, -#endif - .get_first_track_num= get_first_track_num_generic, - .get_hwinfo = NULL, - .get_mcn = get_mcn_linux, - .get_num_tracks = get_num_tracks_generic, - .get_track_format = get_track_format_linux, - .get_track_green = get_track_green_linux, - .get_track_lba = NULL, /* This could be implemented if need be. */ - .get_track_msf = get_track_msf_linux, - .lseek = cdio_generic_lseek, - .read = cdio_generic_read, - .read_audio_sectors = _read_audio_sectors_linux, - .read_mode1_sector = _read_mode1_sector_linux, - .read_mode1_sectors = _read_mode1_sectors_linux, - .read_mode2_sector = _read_mode2_sector_linux, - .read_mode2_sectors = _read_mode2_sectors_linux, - .read_toc = read_toc_linux, - .run_scsi_mmc_cmd = run_scsi_cmd_linux, - .set_arg = set_arg_linux, - .stat_size = stat_size_linux - }; - - _data = _cdio_malloc (sizeof (_img_private_t)); - - _data->access_mode = str_to_access_mode_linux(access_mode); - _data->gen.init = false; - _data->gen.toc_init = false; - _data->gen.fd = -1; - _data->gen.b_cdtext_init = false; - _data->gen.b_cdtext_error = false; - - if (NULL == psz_orig_source) { - psz_source=cdio_get_default_device_linux(); - if (NULL == psz_source) { - free(_data); - return NULL; - } - set_arg_linux(_data, "source", psz_source); - free(psz_source); - } else { - if (cdio_is_device_generic(psz_orig_source)) - set_arg_linux(_data, "source", psz_orig_source); - else { - /* The below would be okay if all device drivers worked this way. */ -#if 0 - cdio_info ("source %s is not a device", psz_orig_source); -#endif - free(_data); - return NULL; - } - } - - ret = cdio_new ((void *)_data, &_funcs); - if (ret == NULL) return NULL; - - if (cdio_generic_init(_data)) { - return ret; - } else { - cdio_generic_free (_data); - return NULL; - } - -#else - return NULL; -#endif /* HAVE_LINUX_CDROM */ - -} - -bool -cdio_have_linux (void) -{ -#ifdef HAVE_LINUX_CDROM - return true; -#else - return false; -#endif /* HAVE_LINUX_CDROM */ -} |