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Implemented minimum speed in burn_drive_set_speed()

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This commit is contained in:
Thomas Schmitt
2007-07-17 08:57:24 +00:00
parent 1087d402f2
commit bdadae6ba5
5 changed files with 65 additions and 46 deletions
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73
libburn/mmc.c
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@ -1631,36 +1631,17 @@ void mmc_perform_opc(struct burn_drive *d)
ts A70712 : That leaner solution does not suffice for my LG GSA-4082B.
Meanwhile there is a speed descriptor list anyway.
*/
int mmc_set_streaming(struct burn_drive *d, int r_speed, int w_speed)
int mmc_set_streaming(struct burn_drive *d,
int r_speed, int w_speed, int end_lba)
{
struct buffer buf;
struct command c;
int b, end_lba = 0;
int b, eff_end_lba;
char msg[160];
unsigned char *pd;
struct burn_speed_descriptor *best_sd = NULL;
mmc_function_spy("mmc_set_streaming");
if (r_speed <= 0 || w_speed <= 0) {
/* ts A70712 : now searching for best speed descriptor */
if (w_speed > 0 && r_speed <= 0)
burn_drive_get_best_speed(d, r_speed, &best_sd, 1);
else
burn_drive_get_best_speed(d, w_speed, &best_sd, 0);
if (best_sd != NULL) {
w_speed = best_sd->write_speed;
d->nominal_write_speed = w_speed;
r_speed = best_sd->read_speed;
end_lba = best_sd->end_lba;
} else {
if (w_speed <= 0)
w_speed = 0x10000000; /* ~ 2 TB/s */
if (r_speed <= 0)
r_speed = 0x10000000; /* ~ 2 TB/s */
}
}
scsi_init_command(&c, MMC_SET_STREAMING, sizeof(MMC_SET_STREAMING));
/*
c.oplen = sizeof(MMC_SET_STREAMING);
@ -1676,17 +1657,23 @@ int mmc_set_streaming(struct burn_drive *d, int r_speed, int w_speed)
memset(c.page->data, 0, c.page->bytes);
pd = c.page->data;
/* Trying to avoid inquiry of available speed descriptors but rather
to allow the drive to use the liberties of Exact==0.
*/
pd[0] = 0; /* WRC=0 (Default Rotation Control), RDD=Exact=RA=0 */
if (w_speed == 0)
w_speed = 0x10000000; /* ~ 2 TB/s */
else if (w_speed < 0)
w_speed = 177; /* 1x CD */
if (r_speed == 0)
r_speed = 0x10000000; /* ~ 2 TB/s */
else if (r_speed < 0)
r_speed = 177; /* 1x CD */
if (end_lba == 0) {
/* Default computed from 4.7e9 */
end_lba = 2294921 - 1;
eff_end_lba = 2294921 - 1;
if (d->mdata->max_end_lba > 0)
end_lba = d->mdata->max_end_lba - 1;
}
eff_end_lba = d->mdata->max_end_lba - 1;
} else
eff_end_lba = end_lba;
sprintf(msg, "mmc_set_streaming: end_lba=%d , r=%d , w=%d",
end_lba, r_speed, w_speed);
@ -1732,26 +1719,46 @@ int mmc_set_streaming(struct burn_drive *d, int r_speed, int w_speed)
void mmc_set_speed(struct burn_drive *d, int r, int w)
{
struct command c;
int ret;
int ret, end_lba = 0;
struct burn_speed_descriptor *best_sd = NULL;
mmc_function_spy("mmc_set_speed");
if (r <= 0 || w <= 0) {
/* ts A70712 : now searching for best speed descriptor */
if (w > 0 && r <= 0)
burn_drive_get_best_speed(d, r, &best_sd, 1);
else
burn_drive_get_best_speed(d, w, &best_sd, 0);
if (best_sd != NULL) {
w = best_sd->write_speed;
d->nominal_write_speed = w;
r = best_sd->read_speed;
end_lba = best_sd->end_lba;
}
}
/* A70711 */
d->nominal_write_speed = w;
/* ts A61221 : try to set DVD speed via command B6h */
if (strstr(d->current_profile_text, "DVD") == d->current_profile_text){
ret = mmc_set_streaming(d, r, w);
ret = mmc_set_streaming(d, r, w, end_lba);
if (ret != 0)
return; /* success or really fatal failure */
}
/* ts A61112 : MMC standards prescribe FFFFh as max speed.
But libburn.h prescribes 0. */
if (r<=0 || r>0xffff)
But libburn.h prescribes 0.
ts A70715 : <0 now means minimum speed */
if (r == 0 || r > 0xffff)
r = 0xffff;
if (w<=0 || w>0xffff)
else if (r < 0)
r = 177; /* 1x CD */
if (w == 0 || w > 0xffff)
w = 0xffff;
else if (w < 0)
w = 177; /* 1x CD */
scsi_init_command(&c, MMC_SET_SPEED, sizeof(MMC_SET_SPEED));
/*