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New API function burn_disc_track_lba_nwa()

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This commit is contained in:
Thomas Schmitt
2006-11-11 12:22:53 +00:00
parent 62bd5963d0
commit 6c22b98235
8 changed files with 80 additions and 19 deletions
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24
libburn/mmc.c
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@ -99,7 +99,9 @@ void mmc_send_cue_sheet(struct burn_drive *d, struct cue_sheet *s)
d->issue_command(d, &c);
}
int mmc_get_nwa(struct burn_drive *d)
/* ts A61110 : added parameters trackno, lba, nwa. Redefined return value.
@return 1=nwa is valid , 0=nwa is not valid , -1=error */
int mmc_get_nwa(struct burn_drive *d, int trackno, int *lba, int *nwa)
{
struct buffer buf;
struct command c;
@ -110,21 +112,27 @@ int mmc_get_nwa(struct burn_drive *d)
c.oplen = sizeof(MMC_TRACK_INFO);
memcpy(c.opcode, MMC_TRACK_INFO, sizeof(MMC_TRACK_INFO));
c.opcode[1] = 1;
c.opcode[5] = 0xFF;
if(trackno<=0)
c.opcode[5] = 0xFF;
else
c.opcode[5] = trackno;
c.page = &buf;
c.dir = FROM_DRIVE;
d->issue_command(d, &c);
data = c.page->data;
/* ts A61106 : >>> MMC-1 Table 142 : NWA_V = NWA Valid Flag
What to do if this is not 1 ? */
if (!(data[7]&1))
*lba = (data[8] << 24) + (data[9] << 16)
+ (data[10] << 8) + data[11];
*nwa = (data[12] << 24) + (data[13] << 16)
+ (data[14] << 8) + data[15];
/* ts A61106 : MMC-1 Table 142 : NWA_V = NWA Valid Flag */
if (!(data[7]&1)) {
libdax_msgs_submit(libdax_messenger, -1, 0x00000002,
LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_ZERO,
"mmc_get_nwa: Track Info Block: NWA_V == 0", 0, 0);
return (data[12] << 24) + (data[13] << 16)
+ (data[14] << 8) + data[15];
return 0;
}
return 1;
}
/* ts A61009 : function is obviously unused. */