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Inquiring GET PERFORMANCE independently of existence of mode page 2A

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This commit is contained in:
Thomas Schmitt 2014-02-16 20:41:57 +00:00
parent a1e5666150
commit 1d2cd1a3a5
2 changed files with 34 additions and 24 deletions
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2
libburn/trunk/cdrskin/cdrskin_timestamp.h
View File

@ -1 +1 @@
#define Cdrskin_timestamP "2014.02.14.200129"
#define Cdrskin_timestamP "2014.02.16.203859"

56
libburn/trunk/libburn/spc.c
View File

@ -406,6 +406,32 @@ void spc_allow(struct burn_drive *d)
d->issue_command(d, c);
}
/* ts B40216 : Outsourced from spc_sense_caps_al().
To be called by spc_sense_caps() after spc_sense_caps_al()
*/
static int spc_try_get_performance(struct burn_drive *d, int flag)
{
int ret;
struct burn_feature_descr *feature_descr;
/* ts B40107 : Feature 0x107 announces availability of GET PERFORMANCE
Its WSPD bit announces Type 3.
Try this even if the feature is not current.
*/
ret = burn_drive_has_feature(d, 0x107, &feature_descr, 0);
if (ret <= 0)
return ret;
if (feature_descr->data_lenght <= 0)
return 1;
if (feature_descr->data[0] & 2) /* WSPD */
ret = mmc_get_write_performance(d);
/* Get read performance */
mmc_get_performance(d, 0x00, 0);
return 1;
}
/*
ts A70518 - A90603 : Do not call with *alloc_len < 10
*/
@ -423,7 +449,6 @@ static int spc_sense_caps_al(struct burn_drive *d, int *alloc_len, int flag)
struct command *c = NULL;
struct burn_speed_descriptor *sd;
char *msg = NULL;
struct burn_feature_descr *feature_descr;
/* ts A61225 : 1 = report about post-MMC-1 speed descriptors */
static int speed_debug = 0;
@ -552,7 +577,7 @@ static int spc_sense_caps_al(struct burn_drive *d, int *alloc_len, int flag)
/* ts A61225 : end of MMC-1 , begin of MMC-3 */
if (page_length < 30) /* no write speed descriptors ? */
goto try_mmc_get_performance;
goto no_speed_descriptors;
m->cur_write_speed = page[28] * 256 + page[29];
@ -606,26 +631,8 @@ static int spc_sense_caps_al(struct burn_drive *d, int *alloc_len, int flag)
"LIBBURN_DEBUG: 5Ah,2Ah min_write_speed = %d , max_write_speed = %d\n",
m->min_write_speed, m->max_write_speed);
try_mmc_get_performance:;
/* ts B40107 : Feature 0x107 announces availability of GET PERFORMANCE
Its WSPD bit announces Type 3.
Try this even if the feature is not current.
*/
ret = burn_drive_has_feature(d, 0x107, &feature_descr, 0);
if (ret > 0) {
if (feature_descr->data_lenght > 0) {
if (feature_descr->data[0] & 2) { /* WSPD */
ret = mmc_get_write_performance(d);
if (ret > 0 && speed_debug)
fprintf(stderr,
"LIBBURN_DEBUG: ACh min_write_speed = %d , max_write_speed = %d\n",
m->min_write_speed,
m->max_write_speed);
}
/* Get read performance */
mmc_get_performance(d, 0x00, 0);
}
}
no_speed_descriptors:;
ret = !was_error;
ex:
BURN_FREE_MEM(msg);
@ -654,7 +661,7 @@ void spc_sense_caps(struct burn_drive *d)
*/
ret = spc_sense_caps_al(d, &alloc_len, 1);
if (ret == 2)
return;
goto try_get_performance;
}
/* ts B11103:
qemu ATAPI DVD-ROM delivers only 28.
@ -664,6 +671,9 @@ void spc_sense_caps(struct burn_drive *d)
if (alloc_len >= minimum_len && ret > 0)
/* second execution with announced length */
spc_sense_caps_al(d, &alloc_len, 0);
try_get_performance:;
spc_try_get_performance(d, 0);
}