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New API call burn_disc_get_cd_info()

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This commit is contained in:
Thomas Schmitt
2009-09-09 12:52:07 +00:00
parent 1d6c97c79f
commit eb62395e41
5 changed files with 121 additions and 15 deletions
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58
libburn/mmc.c
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@ -1054,8 +1054,7 @@ int mmc_fake_toc(struct burn_drive *d)
}
/* 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->current_profile == 0x40) &&
d->last_track_no <= 1) {
if ((d->current_profile == 0x10) && d->last_track_no <= 1) {
ret = mmc_read_toc_fmt0(d);
return ret;
}
@ -1586,15 +1585,7 @@ static int mmc_read_disc_info_al(struct burn_drive *d, int *alloc_len)
mmc_get_configuration(d);
/* ts A70910 : found this as condition for mmc_function_spy() which went up
if (*alloc_len < 2)
*/
scsi_init_command(&c, MMC_GET_DISC_INFO, sizeof(MMC_GET_DISC_INFO));
/*
memcpy(c.opcode, MMC_GET_DISC_INFO, sizeof(MMC_GET_DISC_INFO));
c.oplen = sizeof(MMC_GET_DISC_INFO);
*/
c.dxfer_len = *alloc_len;
c.opcode[7]= (c.dxfer_len >> 8) & 0xff;
c.opcode[8]= c.dxfer_len & 0xff;
@ -1616,13 +1607,31 @@ 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 here */
if (*alloc_len < 24) /* data[23] is the last mandatory byte here */
return 0;
if (len + 2 > old_alloc_len)
len = old_alloc_len - 2;
d->erasable = !!(data[2] & 16);
/* ts A90908 */
d->disc_type = data[8];
d->disc_info_valid = 1;
d->disc_id = mmc_four_char_to_int(data + 12);
d->disc_info_valid |= (!!(data[7] & 128)) << 1;
if (len + 2 > 31 && (data[7] & 64)) {
memcpy(d->disc_bar_code, data + 24, 8);
d->disc_bar_code[9] = 0;
d->disc_info_valid |= 4;
}
if (len + 2 > 32 && (data[7] & 16)) {
d->disc_app_code = data[32];
d->disc_info_valid |= 8;
}
if (data[7] & 32) {
d->disc_info_valid |= 16;
}
disc_status = data[2] & 3;
d->state_of_last_session = (data[2] >> 2) & 3;
number_of_sessions = (data[9] << 8) | data[4];
@ -1656,12 +1665,26 @@ static int mmc_read_disc_info_al(struct burn_drive *d, int *alloc_len)
}
#endif /* Libburn_support_bd_r_readonlY */
/* MMC-5 6.22.3.1.16:
Last Session Lead-in Start Address bytes 16 to 19
Last Possible Lead-out Start Address bytes 20 to 23
MSF for CD, LBA else
*/
if(d->current_profile == 0x08 || d->current_profile == 0x09 ||
d->current_profile == 0x0a) {
d->last_lead_in =
burn_msf_to_lba(data[17], data[18], data[19]);
d->last_lead_out =
burn_msf_to_lba(data[21], data[22], data[23]);
} else {
d->last_lead_in = mmc_four_char_to_int(data + 16);
d->last_lead_out = mmc_four_char_to_int(data + 20);
}
switch (disc_status) {
case 0:
regard_as_blank:;
d->toc_entries = 0;
d->start_lba = burn_msf_to_lba(data[17], data[18], data[19]);
d->end_lba = burn_msf_to_lba(data[21], data[22], data[23]);
/*
fprintf(stderr, "libburn_experimental: start_lba = %d (%d %d %d) , end_lba = %d (%d %d %d)\n",
@ -1670,6 +1693,8 @@ regard_as_blank:;
*/
d->status = BURN_DISC_BLANK;
d->start_lba = d->last_lead_in;
d->end_lba = d->last_lead_out;
break;
case 1:
d->status = BURN_DISC_APPENDABLE;
@ -4213,6 +4238,13 @@ int mmc_setup_drive(struct burn_drive *d)
d->needs_close_session = 0;
d->needs_sync_cache = 0;
d->bg_format_status = -1;
d->last_lead_in = -2000000000;
d->last_lead_out = -2000000000;
d->disc_type = 0xff;
d->disc_id = 0;
memset(d->disc_bar_code, 0, 9);
d->disc_app_code = 0;
d->disc_info_valid = 0;
d->num_format_descr = 0;
d->complete_sessions = 0;
d->state_of_last_session = -1;