claunia/libcdio-osx
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Add simple (non-mode2) read/seek.

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_cdio_generic.c: place to save common driver routines
add cdio_get_track_sec_count.
This commit is contained in:
rocky
2003-03-29 17:32:00 +00:00
parent 2e4f7d22ac
commit f488280282
21 changed files with 1572 additions and 538 deletions
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100
lib/_cdio_linux.c
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@@ -1,5 +1,5 @@
/*
$Id: _cdio_linux.c,v 1.2 2003/03/24 23:59:22 rocky Exp $
$Id: _cdio_linux.c,v 1.3 2003/03/29 17:32:00 rocky Exp $
Copyright (C) 2001 Herbert Valerio Riedel <hvr@gnu.org>
Copyright (C) 2002,2003 Rocky Bernstein <rocky@panix.com>
@@ -27,7 +27,7 @@
# include "config.h"
#endif
static const char _rcsid[] = "$Id: _cdio_linux.c,v 1.2 2003/03/24 23:59:22 rocky Exp $";
static const char _rcsid[] = "$Id: _cdio_linux.c,v 1.3 2003/03/29 17:32:00 rocky Exp $";
#include "cdio_assert.h"
#include "cdio_private.h"
@@ -65,9 +65,9 @@ static const char _rcsid[] = "$Id: _cdio_linux.c,v 1.2 2003/03/24 23:59:22 rocky
#define FIRST_TRACK_NUM (_obj->tochdr.cdth_trk0)
typedef struct {
int fd;
int ioctls_debugged; /* for debugging */
/* Things common to all drivers like this.
This must be first. */
generic_img_private_t gen;
enum {
_AM_NONE,
@@ -76,9 +76,7 @@ typedef struct {
_AM_READ_10
} access_mode;
char *source_name;
bool init;
int ioctls_debugged; /* for debugging */
/* Track information */
bool toc_init; /* if true, info below is valid. */
@@ -93,41 +91,24 @@ typedef struct {
static bool
_cdio_init (_img_private_t *_obj)
{
if (_obj->init) {
if (_obj->gen.init) {
cdio_error ("init called more than once");
return false;
}
_obj->fd = open (_obj->source_name, O_RDONLY, 0);
_obj->gen.fd = open (_obj->gen.source_name, O_RDONLY, 0);
if (_obj->fd < 0)
if (_obj->gen.fd < 0)
{
cdio_error ("open (%s): %s", _obj->source_name, strerror (errno));
cdio_error ("open (%s): %s", _obj->gen.source_name, strerror (errno));
return false;
}
_obj->init = true;
_obj->gen.init = true;
_obj->toc_init = false;
return true;
}
/*!
Release and free resources associated with cd.
*/
static void
_cdio_free (void *user_data)
{
_img_private_t *_obj = user_data;
if (NULL == _obj) return;
free (_obj->source_name);
if (_obj->fd >= 0)
close (_obj->fd);
free (_obj);
}
static int
_set_bsize (int fd, unsigned int bsize)
{
@@ -254,8 +235,8 @@ _read_mode2 (int fd, void *buf, lba_t lba, unsigned nblocks,
from lsn. Returns 0 if no error.
*/
static int
_read_mode2_sector (void *user_data, void *data, lsn_t lsn,
bool mode2_form2)
_cdio_read_mode2_sector (void *user_data, void *data, lsn_t lsn,
bool mode2_form2)
{
char buf[M2RAW_SECTOR_SIZE] = { 0, };
struct cdrom_msf *msf = (struct cdrom_msf *) &buf;
@@ -292,7 +273,7 @@ _read_mode2_sector (void *user_data, void *data, lsn_t lsn,
break;
case _AM_IOCTL:
if (ioctl (_obj->fd, CDROMREADMODE2, &buf) == -1)
if (ioctl (_obj->gen.fd, CDROMREADMODE2, &buf) == -1)
{
perror ("ioctl()");
return 1;
@@ -302,7 +283,7 @@ _read_mode2_sector (void *user_data, void *data, lsn_t lsn,
case _AM_READ_CD:
case _AM_READ_10:
if (_read_mode2 (_obj->fd, buf, lsn, 1,
if (_read_mode2 (_obj->gen.fd, buf, lsn, 1,
(_obj->access_mode == _AM_READ_10)))
{
perror ("ioctl()");
@@ -326,7 +307,7 @@ _read_mode2_sector (void *user_data, void *data, lsn_t lsn,
if (mode2_form2)
memcpy (data, buf, M2RAW_SECTOR_SIZE);
else
memcpy (((char *)data), buf + 8, M2F1_SECTOR_SIZE);
memcpy (((char *)data), buf + 8, FORM1_DATA_SIZE);
return 0;
}
@@ -337,8 +318,8 @@ _read_mode2_sector (void *user_data, void *data, lsn_t lsn,
Returns 0 if no error.
*/
static int
_read_mode2_sectors (void *user_data, void *data, lsn_t lsn,
bool mode2_form2, unsigned nblocks)
_cdio_read_mode2_sectors (void *user_data, void *data, lsn_t lsn,
bool mode2_form2, unsigned nblocks)
{
_img_private_t *_obj = user_data;
int i;
@@ -346,17 +327,18 @@ _read_mode2_sectors (void *user_data, void *data, lsn_t lsn,
for (i = 0; i < nblocks; i++) {
if (mode2_form2) {
if ( (retval = _read_mode2_sector (_obj,
((char *)data) + (M2RAW_SECTOR_SIZE * i),
lsn + i, true)) )
if ( (retval = _cdio_read_mode2_sector (_obj,
((char *)data)
+ (M2RAW_SECTOR_SIZE * i),
lsn + i, true)) )
return retval;
} else {
char buf[M2RAW_SECTOR_SIZE] = { 0, };
if ( (retval = _read_mode2_sector (_obj, buf, lsn + i, true)) )
if ( (retval = _cdio_read_mode2_sector (_obj, buf, lsn + i, true)) )
return retval;
memcpy (((char *)data) + (M2F1_SECTOR_SIZE * i), buf + 8,
M2F1_SECTOR_SIZE);
memcpy (((char *)data) + (FORM1_DATA_SIZE * i), buf + 8,
FORM1_DATA_SIZE);
}
}
return 0;
@@ -375,7 +357,7 @@ _cdio_stat_size (void *user_data)
tocent.cdte_track = CDROM_LEADOUT;
tocent.cdte_format = CDROM_LBA;
if (ioctl (_obj->fd, CDROMREADTOCENTRY, &tocent) == -1)
if (ioctl (_obj->gen.fd, CDROMREADTOCENTRY, &tocent) == -1)
{
perror ("ioctl(CDROMREADTOCENTRY)");
exit (EXIT_FAILURE);
@@ -399,9 +381,9 @@ _cdio_set_arg (void *user_data, const char key[], const char value[])
if (!value)
return -2;
free (_obj->source_name);
free (_obj->gen.source_name);
_obj->source_name = strdup (value);
_obj->gen.source_name = strdup (value);
}
else if (!strcmp (key, "access-mode"))
{
@@ -430,7 +412,7 @@ _cdio_read_toc (_img_private_t *_obj)
int i;
/* read TOC header */
if ( ioctl(_obj->fd, CDROMREADTOCHDR, &_obj->tochdr) == -1 ) {
if ( ioctl(_obj->gen.fd, CDROMREADTOCHDR, &_obj->tochdr) == -1 ) {
cdio_error("%s: %s\n",
"error in ioctl CDROMREADTOCHDR", strerror(errno));
return false;
@@ -440,7 +422,7 @@ _cdio_read_toc (_img_private_t *_obj)
for (i= FIRST_TRACK_NUM; i<=TOTAL_TRACKS; i++) {
_obj->tocent[i-1].cdte_track = i;
_obj->tocent[i-1].cdte_format = CDROM_MSF;
if ( ioctl(_obj->fd, CDROMREADTOCENTRY, &_obj->tocent[i-1]) == -1 ) {
if ( ioctl(_obj->gen.fd, CDROMREADTOCENTRY, &_obj->tocent[i-1]) == -1 ) {
cdio_error("%s %d: %s\n",
"error in ioctl CDROMREADTOCENTRY for track",
i, strerror(errno));
@@ -459,7 +441,7 @@ _cdio_read_toc (_img_private_t *_obj)
_obj->tocent[TOTAL_TRACKS].cdte_track = CDROM_LEADOUT;
_obj->tocent[TOTAL_TRACKS].cdte_format = CDROM_MSF;
if (ioctl(_obj->fd, CDROMREADTOCENTRY,
if (ioctl(_obj->gen.fd, CDROMREADTOCENTRY,
&_obj->tocent[TOTAL_TRACKS]) == -1 ) {
cdio_error("%s: %s\n",
"error in ioctl CDROMREADTOCENTRY for lead-out",
@@ -489,7 +471,7 @@ _cdio_eject_media (void *user_data) {
int status;
int fd;
if ((fd = open (_obj->source_name, O_RDONLY|O_NONBLOCK)) > -1) {
if ((fd = open (_obj->gen.source_name, O_RDONLY|O_NONBLOCK)) > -1) {
if((status = ioctl(fd, CDROM_DRIVE_STATUS, CDSL_CURRENT)) > 0) {
switch(status) {
case CDS_TRAY_OPEN:
@@ -509,7 +491,7 @@ _cdio_eject_media (void *user_data) {
ret=1;
}
close(fd);
_cdio_free((void *) _obj);
cdio_generic_free((void *) _obj);
}
return 2;
}
@@ -523,7 +505,7 @@ _cdio_get_arg (void *user_data, const char key[])
_img_private_t *_obj = user_data;
if (!strcmp (key, "source")) {
return _obj->source_name;
return _obj->gen.source_name;
} else if (!strcmp (key, "access-mode")) {
switch (_obj->access_mode) {
case _AM_IOCTL:
@@ -676,7 +658,7 @@ cdio_open_linux (const char *source_name)
cdio_funcs _funcs = {
.eject_media = _cdio_eject_media,
.free = _cdio_free,
.free = cdio_generic_free,
.get_arg = _cdio_get_arg,
.get_default_device = _cdio_get_default_device,
.get_first_track_num= _cdio_get_first_track_num,
@@ -685,16 +667,18 @@ cdio_open_linux (const char *source_name)
.get_track_green = _cdio_get_track_green,
.get_track_lba = NULL, /* This could be implemented if need be. */
.get_track_msf = _cdio_get_track_msf,
.read_mode2_sector = _read_mode2_sector,
.read_mode2_sectors = _read_mode2_sectors,
.lseek = cdio_generic_lseek,
.read = cdio_generic_read,
.read_mode2_sector = _cdio_read_mode2_sector,
.read_mode2_sectors = _cdio_read_mode2_sectors,
.set_arg = _cdio_set_arg,
.stat_size = _cdio_stat_size
};
_data = _cdio_malloc (sizeof (_img_private_t));
_data->access_mode = _AM_READ_CD;
_data->init = false;
_data->fd = -1;
_data->gen.init = false;
_data->gen.fd = -1;
_cdio_set_arg(_data, "source", (NULL == source_name)
? DEFAULT_CDIO_DEVICE: source_name);
@@ -705,7 +689,7 @@ cdio_open_linux (const char *source_name)
if (_cdio_init(_data))
return ret;
else {
_cdio_free (_data);
cdio_generic_free (_data);
return NULL;
}