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Enabled reading of TOC from ROM drives (direly needed for xorriso)

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This commit is contained in:
Thomas Schmitt 2007-11-29 18:55:06 +00:00
parent 206910da4e
commit 82c6e92da0
5 changed files with 177 additions and 12 deletions
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2
cdrskin/cdrskin_timestamp.h
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@ -1 +1 @@
#define Cdrskin_timestamP "2007.11.26.154817"
#define Cdrskin_timestamP "2007.11.29.185342"

4
libburn/drive.c
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@ -201,7 +201,9 @@ int burn_drive_inquire_media(struct burn_drive *d)
/* ts A61020 : d->status was set to BURN_DISC_BLANK as pure guess */
if (d->mdata->cdr_write || d->mdata->cdrw_write ||
/* ts A71128 : run read_disc_info() for any recognizeable profile */
if (d->current_profile > 0 ||
d->mdata->cdr_write || d->mdata->cdrw_write ||
d->mdata->dvdr_write || d->mdata->dvdram_write) {
#define Libburn_knows_correct_state_after_loaD 1

2
libburn/libdax_msgs.h
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@ -441,7 +441,7 @@ Range "scdbackup" : 0x00020000 to 0x0002ffff
0x00020156 (SORRY,HIGH) = Desired fifo buffer too small
0x00020157 (FATAL,HIGH) = burn_source is not a fifo object
0x00020158 (DEBUG,LOW) = Reporting thread disposal precautions
0x00020159 (DEBUG,HIGH) = TOC Format 0 returns inconsistent data
libdax_audioxtr:
0x00020200 (SORRY,HIGH) = Cannot open audio source file

167
libburn/mmc.c
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@ -116,6 +116,7 @@ extern struct libdax_msgs *libdax_messenger;
static unsigned char MMC_GET_MSINFO[] =
{ 0x43, 0, 1, 0, 0, 0, 0, 16, 0, 0 };
static unsigned char MMC_GET_TOC[] = { 0x43, 2, 2, 0, 0, 0, 0, 16, 0, 0 };
static unsigned char MMC_GET_TOC_FMT0[] = { 0x43, 0, 0, 0, 0, 0, 0, 16, 0, 0 };
static unsigned char MMC_GET_ATIP[] = { 0x43, 2, 4, 0, 0, 0, 0, 16, 0, 0 };
static unsigned char MMC_GET_DISC_INFO[] =
{ 0x51, 0, 0, 0, 0, 0, 0, 16, 0, 0 };
@ -797,6 +798,153 @@ int mmc_fake_toc_entry(struct burn_toc_entry *entry, int session_number,
}
/* ts A71128 : for DVD-ROM drives which offer no reliable track information */
static int mmc_read_toc_fmt0_al(struct burn_drive *d, int *alloc_len)
{
struct burn_track *track;
struct burn_session *session;
struct burn_toc_entry *entry;
struct buffer buf;
struct command c;
int dlen, i, old_alloc_len, session_number, prev_session = -1;
int lba, size;
unsigned char *tdata, size_data[4], start_data[4];
if (*alloc_len < 4)
return 0;
scsi_init_command(&c, MMC_GET_TOC_FMT0, sizeof(MMC_GET_TOC_FMT0));
c.dxfer_len = *alloc_len;
c.opcode[7] = (c.dxfer_len >> 8) & 0xff;
c.opcode[8] = c.dxfer_len & 0xff;
c.retry = 1;
c.page = &buf;
c.page->bytes = 0;
c.page->sectors = 0;
c.dir = FROM_DRIVE;
d->issue_command(d, &c);
if (c.error) {
err_ex:;
libdax_msgs_submit(libdax_messenger, d->global_index,
0x0002010d,
LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_HIGH,
"Could not inquire TOC", 0,0);
d->status = BURN_DISC_UNSUITABLE;
d->toc_entries = 0;
/* Prefering memory leaks over fandangos */
d->toc_entry = calloc(1, sizeof(struct burn_toc_entry));
return 0;
}
dlen = c.page->data[0] * 256 + c.page->data[1];
old_alloc_len = *alloc_len;
*alloc_len = dlen + 2;
if (old_alloc_len < 12)
return 1;
if (dlen + 2 > old_alloc_len)
dlen = old_alloc_len - 2;
d->complete_sessions = 1 + c.page->data[3] - c.page->data[2];
d->last_track_no = d->complete_sessions;
if (dlen - 2 < (d->last_track_no + 1) * 8) {
libdax_msgs_submit(libdax_messenger, d->global_index,
0x00020159,
LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_HIGH,
"TOC Format 0 returns inconsistent data", 0,0);
goto err_ex;
}
d->toc_entries = d->last_track_no + d->complete_sessions;
if (d->toc_entries < 1)
return 0;
d->toc_entry = calloc(d->toc_entries, sizeof(struct burn_toc_entry));
if(d->toc_entry == NULL)
return 0;
d->disc = burn_disc_create();
if (d->disc == NULL)
return 0;
for (i = 0; i < d->complete_sessions; i++) {
session = burn_session_create();
if (session == NULL)
return 0;
burn_disc_add_session(d->disc, session, BURN_POS_END);
burn_session_free(session);
}
for (i = 0; i < d->last_track_no; i++) {
tdata = c.page->data + 4 + i * 8;
session_number = i + 1;
if (session_number != prev_session && prev_session > 0) {
/* leadout entry previous session */
entry = &(d->toc_entry[(i - 1) + prev_session]);
lba = mmc_four_char_to_int(start_data) +
mmc_four_char_to_int(size_data);
mmc_int_to_four_char(start_data, lba);
mmc_int_to_four_char(size_data, 0);
mmc_fake_toc_entry(entry, prev_session, 0xA2,
size_data, start_data);
entry->min= entry->sec= entry->frame= 0;
d->disc->session[prev_session - 1]->leadout_entry =
entry;
}
/* ??? >>> d->media_capacity_remaining , d->media_lba_limit
as of mmc_fake_toc()
*/
entry = &(d->toc_entry[i + session_number - 1]);
track = burn_track_create();
if (track == NULL)
return -1;
burn_session_add_track(
d->disc->session[session_number - 1],
track, BURN_POS_END);
track->entry = entry;
burn_track_free(track);
memcpy(start_data, tdata + 4, 4);
/* size_data are estimated from next track start */
memcpy(size_data, tdata + 8 + 4, 4);
size = mmc_four_char_to_int(size_data) -
mmc_four_char_to_int(start_data);
mmc_int_to_four_char(size_data, size);
mmc_fake_toc_entry(entry, session_number, i + 1,
size_data, start_data);
if (prev_session != session_number)
d->disc->session[session_number - 1]->firsttrack = i+1;
d->disc->session[session_number - 1]->lasttrack = i+1;
prev_session = session_number;
}
if (prev_session > 0 && prev_session <= d->disc->sessions) {
/* leadout entry of last session of closed disc */
tdata = c.page->data + 4 + d->last_track_no * 8;
entry = &(d->toc_entry[(d->last_track_no - 1) + prev_session]);
memcpy(start_data, tdata + 4, 4);
mmc_int_to_four_char(size_data, 0);
mmc_fake_toc_entry(entry, prev_session, 0xA2,
size_data, start_data);
entry->min= entry->sec= entry->frame= 0;
d->disc->session[prev_session - 1]->leadout_entry = entry;
}
return 1;
}
/* ts A71128 : for DVD-ROM drives which offer no reliable track information */
static int mmc_read_toc_fmt0(struct burn_drive *d)
{
int alloc_len = 4, ret;
if (mmc_function_spy(d, "mmc_read_toc_fmt0") <= 0)
return -1;
ret = mmc_read_toc_fmt0_al(d, &alloc_len);
if (alloc_len >= 12)
ret = mmc_read_toc_fmt0_al(d, &alloc_len);
return ret;
}
/* ts A70131 : compose a disc TOC structure from d->complete_sessions
and 52h READ TRACK INFORMATION */
int mmc_fake_toc(struct burn_drive *d)
@ -825,6 +973,12 @@ int mmc_fake_toc(struct burn_drive *d)
msg, 0,0);
return 0;
}
/* ts A71128 : My DVD-ROM drive issues no reliable track info.
One has to try 43h READ TOC/PMA/ATIP Form 0. */
if (d->current_profile == 0x10 && d->last_track_no <= 1) {
ret = mmc_read_toc_fmt0(d);
return ret;
}
d->disc = burn_disc_create();
if (d->disc == NULL)
return -1;
@ -835,12 +989,15 @@ int mmc_fake_toc(struct burn_drive *d)
memset(d->toc_entry, 0,d->toc_entries * sizeof(struct burn_toc_entry));
for (i = 0; i < d->complete_sessions; i++) {
session = burn_session_create();
if (session == NULL)
return -1;
burn_disc_add_session(d->disc, session, BURN_POS_END);
burn_session_free(session);
}
memset(size_data, 0, 4);
memset(start_data, 0, 4);
/* Entry Layout :
session 1 track 1 entry 0
...
@ -943,13 +1100,15 @@ static int mmc_read_toc_al(struct burn_drive *d, int *alloc_len)
if (!(d->current_profile == -1 || d->current_is_cd_profile)) {
/* ts A70131 : MMC_GET_TOC uses Response Format 2
For DVD this fails with 5,24,00 */
/* One could try Response Format 0: mmc5r03.pdf 6.26.3.2
which does not yield the same result wit the same disc
/* mmc_read_toc_fmt0() uses
Response Format 0: mmc5r03.pdf 6.26.3.2
which does not yield the same result with the same disc
on different drives.
*/
/* ts A70201 :
This uses the session count from 51h READ DISC INFORMATION
and the track records from 52h READ TRACK INFORMATION
and the track records from 52h READ TRACK INFORMATION.
mmc_read_toc_fmt0() is used as fallback for dull DVD-ROM.
*/
mmc_fake_toc(d);
@ -1251,7 +1410,7 @@ static int mmc_read_disc_info_al(struct burn_drive *d, int *alloc_len)
*alloc_len = len + 2;
if (old_alloc_len < 34)
return 1;
if (*alloc_len < 24) /* data[23] is the last byte used her */
if (*alloc_len < 24) /* data[23] is the last byte used here */
return 0;
if (len + 2 > old_alloc_len)
len = old_alloc_len - 2;

14
libburn/spc.c
View File

@ -566,12 +566,16 @@ void spc_sense_write_params(struct burn_drive *d)
c.dir = FROM_DRIVE;
d->issue_command(d, &c);
size = c.page->data[0] * 256 + c.page->data[1];
/* ts A71128 : do not interpret reply if error */
m = d->mdata;
page = c.page->data + 8;
burn_print(1, "write page length 0x%x\n", page[1]);
m->write_page_length = page[1];
m->write_page_valid = 1;
if(!c.error) {
size = c.page->data[0] * 256 + c.page->data[1];
page = c.page->data + 8;
burn_print(1, "write page length 0x%x\n", page[1]);
m->write_page_length = page[1];
m->write_page_valid = 1;
} else
m->write_page_valid = 0;
mmc_read_disc_info(d);
/* ts A70212 : try to setup d->media_capacity_remaining */