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Provisorily obtain multi-session -C parameters (violates MMC specs but works)

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This commit is contained in:
Thomas Schmitt
2007-01-31 17:34:49 +00:00
parent f194aa8d5d
commit dde52c1971
7 changed files with 120 additions and 11 deletions
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58
libburn/mmc.c
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@ -84,6 +84,8 @@ Todo:
*/
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_ATIP[] = { 0x43, 2, 4, 0, 0, 0, 0, 16, 0, 0 };
static unsigned char MMC_GET_DISC_INFO[] =
@ -421,6 +423,18 @@ void mmc_read_toc(struct burn_drive *d)
mmc_function_spy("mmc_read_toc");
memcpy(c.opcode, MMC_GET_TOC, sizeof(MMC_GET_TOC));
if(!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 */
/* One could try
51h READ DISC INFORMATION and 52h READ TRACK INFORMATION
where 51h gives the number of tracks and 52h tells the
session number with each track. */
/* >>> One must do someting */;
}
c.retry = 1;
c.oplen = sizeof(MMC_GET_TOC);
c.page = &buf;
@ -442,7 +456,7 @@ void mmc_read_toc(struct burn_drive *d)
libdax_msgs_submit(libdax_messenger, d->global_index,
0x0002010d,
LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_HIGH,
"Could not inquire TOC (non-blank DVD media ?)", 0,0);
"Could not inquire TOC", 0,0);
d->status = BURN_DISC_UNSUITABLE;
d->toc_entries = 0;
/* Prefering memory leaks over fandangos */
@ -541,6 +555,47 @@ void mmc_read_toc(struct burn_drive *d)
toc_find_modes(d);
}
/* ts A70131 : If no TOC is at hand, this tries to get the start of the
last complete session (mksifs -c first parameter) */
int mmc_read_multi_session_c1(struct burn_drive *d, int *trackno, int *start)
{
struct buffer buf;
struct command c;
unsigned char *tdata;
mmc_function_spy("mmc_read_multi_session_c");
/* mmc5r03.pdf 6.26.3.3.3 states that with non-CD this would
be a useless fake always starting at track 1, lba 0.
My drives return useful data, though.
MMC-3 states that DVD had not tracks. So maybe this fake is
a legacy ?
>>> Possibly one will have to fake this reply from
51h READ DISC INFORMATION and 52h READ TRACK INFORMATION
(I still have to find out what growisofs is using)
*/
memcpy(c.opcode, MMC_GET_MSINFO, sizeof(MMC_GET_MSINFO));
c.retry = 1;
c.oplen = sizeof(MMC_GET_MSINFO);
c.page = &buf;
c.page->bytes = 0;
c.page->sectors = 0;
c.dir = FROM_DRIVE;
d->issue_command(d, &c);
if (c.error)
return 0;
tdata = c.page->data + 4;
*trackno = tdata[2];
*start = (tdata[4] << 24) | (tdata[5] << 16)
| (tdata[6] << 8) | tdata[7];
return 1;
}
void mmc_read_disc_info(struct burn_drive *d)
{
struct buffer buf;
@ -1806,6 +1861,7 @@ int mmc_setup_drive(struct burn_drive *d)
d->send_cue_sheet = mmc_send_cue_sheet;
d->sync_cache = mmc_sync_cache;
d->get_nwa = mmc_get_nwa;
d->read_multi_session_c1 = mmc_read_multi_session_c1;
d->close_disc = mmc_close_disc;
d->close_session = mmc_close_session;
d->close_track_session = mmc_close;