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Code Issues Releases Activity

Changed timer usage to new functions in clock.c

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This commit is contained in:
Søren Schmidt 1994-04-21 14:22:26 +00:00
parent bc4ff6e376
commit 872dacbfeb
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=1394
3 changed files with 24 additions and 18 deletions
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14
sys/dev/syscons/syscons.c
View File

@ -35,7 +35,7 @@
* SUCH DAMAGE.
*
* from:@(#)syscons.c 1.3 940129
* $Id: syscons.c,v 1.42 1994/04/07 23:21:35 ache Exp $
* $Id: syscons.c,v 1.43 1994/04/12 00:05:23 ache Exp $
*
*/
@ -841,18 +841,20 @@ int pcioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
if (scp == cur_console) {
if (*(int*)data) {
int pitch = TIMER_FREQ/(*(int*)data);
/* enable counter 2 */
outb(0x61, inb(0x61) | 3);
/* set command for counter 2, 2 byte write */
outb(TIMER_MODE,
TIMER_SEL2|TIMER_16BIT|TIMER_SQWAVE);
if (acquire_timer2(TIMER_16BIT|TIMER_SQWAVE)) {
return EBUSY;
}
/* set pitch */
outb(TIMER_CNTR2, pitch);
outb(TIMER_CNTR2, (pitch>>8));
/* enable counter 2 output to speaker */
outb(0x61, inb(0x61) | 3);
}
else {
/* disable counter 2 */
/* disable counter 2 output to speaker */
outb(0x61, inb(0x61) & 0xFC);
release_timer2();
}
}
return 0;

14
sys/i386/isa/syscons.c
View File

@ -35,7 +35,7 @@
* SUCH DAMAGE.
*
* from:@(#)syscons.c 1.3 940129
* $Id: syscons.c,v 1.42 1994/04/07 23:21:35 ache Exp $
* $Id: syscons.c,v 1.43 1994/04/12 00:05:23 ache Exp $
*
*/
@ -841,18 +841,20 @@ int pcioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
if (scp == cur_console) {
if (*(int*)data) {
int pitch = TIMER_FREQ/(*(int*)data);
/* enable counter 2 */
outb(0x61, inb(0x61) | 3);
/* set command for counter 2, 2 byte write */
outb(TIMER_MODE,
TIMER_SEL2|TIMER_16BIT|TIMER_SQWAVE);
if (acquire_timer2(TIMER_16BIT|TIMER_SQWAVE)) {
return EBUSY;
}
/* set pitch */
outb(TIMER_CNTR2, pitch);
outb(TIMER_CNTR2, (pitch>>8));
/* enable counter 2 output to speaker */
outb(0x61, inb(0x61) | 3);
}
else {
/* disable counter 2 */
/* disable counter 2 output to speaker */
outb(0x61, inb(0x61) & 0xFC);
release_timer2();
}
}
return 0;

14
sys/isa/syscons.c
View File

@ -35,7 +35,7 @@
* SUCH DAMAGE.
*
* from:@(#)syscons.c 1.3 940129
* $Id: syscons.c,v 1.42 1994/04/07 23:21:35 ache Exp $
* $Id: syscons.c,v 1.43 1994/04/12 00:05:23 ache Exp $
*
*/
@ -841,18 +841,20 @@ int pcioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
if (scp == cur_console) {
if (*(int*)data) {
int pitch = TIMER_FREQ/(*(int*)data);
/* enable counter 2 */
outb(0x61, inb(0x61) | 3);
/* set command for counter 2, 2 byte write */
outb(TIMER_MODE,
TIMER_SEL2|TIMER_16BIT|TIMER_SQWAVE);
if (acquire_timer2(TIMER_16BIT|TIMER_SQWAVE)) {
return EBUSY;
}
/* set pitch */
outb(TIMER_CNTR2, pitch);
outb(TIMER_CNTR2, (pitch>>8));
/* enable counter 2 output to speaker */
outb(0x61, inb(0x61) | 3);
}
else {
/* disable counter 2 */
/* disable counter 2 output to speaker */
outb(0x61, inb(0x61) & 0xFC);
release_timer2();
}
}
return 0;