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Allow acd(4) and cd(4) to support old behavior for CDRIOC*SPEED ioctls.

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If the value from the user is less than 177, assume it is a multiple of
a single speed CDROM and convert to KB/sec.

No complaints from:	sos
Reviewed by:	ken
Approved by:	re
MFC after:	1 day
This commit is contained in:
Nate Lawson 2002-11-23 22:51:50 +00:00
parent a35e039f69
commit c3bf92aa58
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=107193
2 changed files with 21 additions and 2 deletions
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6
sys/cam/scsi/scsi_cd.c
View File

@ -2976,6 +2976,12 @@ cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed)
ccb = cdgetccb(periph, /* priority */ 1);
csio = &ccb->csio;
/* Preserve old behavior: units in multiples of CDROM speed */
if (rdspeed < 177)
rdspeed *= 177;
if (wrspeed < 177)
wrspeed *= 177;
cam_fill_csio(csio,
/* retries */ 1,
/* cbfcnp */ cddone,

17
sys/dev/ata/atapi-cd.c
View File

@ -1021,11 +1021,24 @@ acdioctl(dev_t dev, u_long cmd, caddr_t addr, int flags, struct thread *td)
break;
case CDRIOCREADSPEED:
error = acd_set_speed(cdp, *(int *)addr, CDR_MAX_SPEED);
{
int speed = *(int *)addr;
/* Preserve old behavior: units in multiples of CDROM speed */
if (speed < 177)
speed *= 177;
error = acd_set_speed(cdp, speed, CDR_MAX_SPEED);
}
break;
case CDRIOCWRITESPEED:
error = acd_set_speed(cdp, CDR_MAX_SPEED, *(int *)addr);
{
int speed = *(int *)addr;
if (speed < 177)
speed *= 177;
error = acd_set_speed(cdp, CDR_MAX_SPEED, speed);
}
break;
case CDRIOCGETBLOCKSIZE: