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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 e5145063f9
commit a8ba16ad63
5 changed files with 121 additions and 15 deletions
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2
libburn/trunk/cdrskin/cdrskin_timestamp.h
View File

@ -1 +1 @@
#define Cdrskin_timestamP "2009.09.06.112121"
#define Cdrskin_timestamP "2009.09.09.125305"

37
libburn/trunk/libburn/drive.c
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@ -521,6 +521,7 @@ int burn_drive_release_fl(struct burn_drive *d, int flag)
d->unlock(d);
if ((flag & 7) == 1)
d->eject(d);
burn_drive_snooze(d, 0);
d->release(d);
}
@ -2621,7 +2622,7 @@ int burn_drive_set_media_capacity_remaining(struct burn_drive *d, off_t value)
/* ts A81215 : API */
int burn_get_read_capacity(struct burn_drive *d, int *capacity, int flag)
{
*capacity = d->media_read_capacity;
*capacity = d->media_read_capacity + 1;
return (d->media_read_capacity != 0x7fffffff);
}
@ -2642,3 +2643,37 @@ int burn_disc_get_media_id(struct burn_drive *d,
return ret;
}
/* ts A90909 : API */
/**
@param valid Replies bits which indicate the validity of other reply
parameters or the state of certain CD info bits:
bit0= disc_type valid
bit1= disc_id valid
bit2= bar_code valid
bit3= disc_app_code valid
bit4= Disc is unrestricted (URU bit)
bit31= Disc is nominally erasable (Erasable bit)
This will be set with overwriteable media which
libburn normally considers to be unerasable blank.
*/
int burn_disc_get_cd_info(struct burn_drive *d, char disc_type[80],
unsigned int *disc_id, char bar_code[9], int *app_code,
int *valid)
{
if (d->disc_type == 0x00) {
strcpy(disc_type, "CD-DA or CD-ROM");
} else if (d->disc_type == 0x10) {
strcpy(disc_type, "CD-I");
} else if (d->disc_type == 0x20) {
strcpy(disc_type, "CD-ROM XA");
} else {
strcpy(disc_type, "undefined");
}
*disc_id = d->disc_id;
memcpy(bar_code, d->disc_bar_code, 8);
bar_code[9]= 0;
*app_code = d->disc_app_code;
*valid = d->disc_info_valid | ((!!d->erasable) << 31);
return 1;
}

29
libburn/trunk/libburn/libburn.h
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@ -1161,6 +1161,35 @@ int burn_drive_get_start_end_lba(struct burn_drive *drive,
char *burn_guess_cd_manufacturer(int m_li, int s_li, int f_li,
int m_lo, int s_lo, int f_lo, int flag);
/* ts A90909 */
/** Retrieve some media information which is mainly specific to CD. For other
media only the bits in reply parameter valid are supposed to be meaningful.
@param drive The drive to query.
@param disc_type A string saying either "CD-DA or CD-ROM", or "CD-I",
or ""CD-ROM XA", or "undefined".
@param disc_id A 32 bit number read from the media. (Meaning unclear yet)
@param bar_code 8 hex digits from a barcode on media read by the drive
(if the drive has a bar code reader built in).
@param app_code The Host Application Code which must be set in the Write
Parameters Page if the media is not unrestricted (URU==0).
@param valid Replies bits which indicate the validity of other reply
parameters or the state of certain CD info bits:
bit0= disc_type is valid
bit1= disc_id is valid
bit2= bar_code is valid
bit3= disc_app_code is valid
bit4= Disc is unrestricted (URU bit, 51h READ DISC INFO)
This seems to be broken with my drives. The bit is
0 and the validity bit for disc_app_code is 0 too.
bit31= Disc is nominally erasable (Erasable bit)
This will be set with overwriteable media which
libburn normally considers to be unerasable blank.
@since 0.7.2
*/
int burn_disc_get_cd_info(struct burn_drive *d, char disc_type[80],
unsigned int *disc_id, char bar_code[9], int *app_code,
int *valid);
/* ts A61110 */
/** Read start lba and Next Writeable Address of a track from media.

58
libburn/trunk/libburn/mmc.c
View File

@ -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;

10
libburn/trunk/libburn/transport.h
View File

@ -216,7 +216,17 @@ struct burn_drive
int stream_recording_start;
/* ts A61218 from 51h READ DISC INFORMATION */
int last_lead_in;
int last_lead_out;
int bg_format_status; /* 0=needs format start, 1=needs format restart*/
int disc_type; /* 0="CD-DA or CD-ROM", 0x10="CD-I", 0x20="CD-ROM XA" */
unsigned int disc_id; /* a "32 bit binary integer" */
char disc_bar_code[9];
int disc_app_code;
int disc_info_valid; /* bit0= disc_type , bit1= disc_id ,
bit2= disc_bar_code , bit3= disc_app_code
bit4= URU bit is set (= unrestricted use)
*/
/* ts A70108 from 23h READ FORMAT CAPACITY mmc5r03c.pdf 6.24 */
int format_descr_type; /* 1=unformatted, 2=formatted, 3=unclear */