mirror/freebsd
1
0
Fork 0
mirror of https://git.FreeBSD.org/src.git synced 2025-01-29 16:44:03 +00:00
Code Issues Releases Activity

Obtain the initial key repeat rate setting via BIOS in i386 if

Browse Source 
possible.
This commit is contained in:
Kazutaka YOKOTA 2000-01-10 08:52:32 +00:00
parent 934d11e395
commit 56f5e27c4b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=55731
2 changed files with 108 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
sys/dev/atkbdc/atkbd.c
View File

@ -39,6 +39,16 @@
#include <sys/proc.h>
#include <sys/malloc.h>
#ifdef __i386__
#include <machine/md_var.h>
#include <machine/psl.h>
#include <machine/vm86.h>
#include <machine/pc/bios.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#endif /* __i386__ */
#include <dev/kbd/kbdreg.h>
#include <dev/kbd/atkbdreg.h>
#include <dev/kbd/atkbdcreg.h>
@ -214,6 +224,7 @@ keyboard_switch_t atkbdsw = {
KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure);
/* local functions */
static int get_typematic(keyboard_t *kbd);
static int setup_kbd_port(KBDC kbdc, int port, int intr);
static int get_kbd_echo(KBDC kbdc);
static int probe_keyboard(KBDC kbdc, int flags);
@ -323,6 +334,7 @@ atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags)
accentmap_t *accmap;
fkeytab_t *fkeymap;
int fkeymap_size;
int delay[2];
int *data = (int *)arg;
/* XXX */
@ -406,6 +418,10 @@ atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags)
&& (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD))
return ENXIO;
atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
get_typematic(kbd);
delay[0] = kbd->kb_delay1;
delay[1] = kbd->kb_delay2;
atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay);
KBD_INIT_DONE(kbd);
}
if (!KBD_IS_CONFIGURED(kbd)) {
@ -430,6 +446,7 @@ static int
atkbd_intr(keyboard_t *kbd, void *arg)
{
atkbd_state_t *state;
int delay[2];
int c;
if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) {
@ -451,6 +468,10 @@ atkbd_intr(keyboard_t *kbd, void *arg)
init_keyboard(state->kbdc, &kbd->kb_type,
kbd->kb_config);
atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
get_typematic(kbd);
delay[0] = kbd->kb_delay1;
delay[1] = kbd->kb_delay2;
atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay);
KBD_FOUND_DEVICE(kbd);
}
}
@ -973,6 +994,39 @@ atkbd_poll(keyboard_t *kbd, int on)
/* local functions */
static int
get_typematic(keyboard_t *kbd)
{
#ifdef __i386__
/*
* Only some systems allow us to retrieve the keyboard repeat
* rate previously set via the BIOS...
*/
struct vm86frame vmf;
u_int32_t p;
bzero(&vmf, sizeof(vmf));
vmf.vmf_ax = 0xc000;
vm86_intcall(0x15, &vmf);
if ((vmf.vmf_eflags & PSL_C) || vmf.vmf_ah)
return ENODEV;
p = BIOS_PADDRTOVADDR(((u_int32_t)vmf.vmf_es << 4) + vmf.vmf_bx);
if ((readb(p + 6) & 0x40) == 0) /* int 16, function 0x09 supported? */
return ENODEV;
vmf.vmf_ax = 0x0900;
vm86_intcall(0x16, &vmf);
if ((vmf.vmf_al & 0x08) == 0) /* int 16, function 0x0306 supported? */
return ENODEV;
vmf.vmf_ax = 0x0306;
vm86_intcall(0x16, &vmf);
kbd->kb_delay1 = typematic_delay(vmf.vmf_bh << 5);
kbd->kb_delay2 = typematic_rate(vmf.vmf_bl);
return 0;
#else
return ENODEV;
#endif /* __i386__ */
}
static int
setup_kbd_port(KBDC kbdc, int port, int intr)
{

54
sys/dev/kbd/atkbd.c
View File

@ -39,6 +39,16 @@
#include <sys/proc.h>
#include <sys/malloc.h>
#ifdef __i386__
#include <machine/md_var.h>
#include <machine/psl.h>
#include <machine/vm86.h>
#include <machine/pc/bios.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#endif /* __i386__ */
#include <dev/kbd/kbdreg.h>
#include <dev/kbd/atkbdreg.h>
#include <dev/kbd/atkbdcreg.h>
@ -214,6 +224,7 @@ keyboard_switch_t atkbdsw = {
KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure);
/* local functions */
static int get_typematic(keyboard_t *kbd);
static int setup_kbd_port(KBDC kbdc, int port, int intr);
static int get_kbd_echo(KBDC kbdc);
static int probe_keyboard(KBDC kbdc, int flags);
@ -323,6 +334,7 @@ atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags)
accentmap_t *accmap;
fkeytab_t *fkeymap;
int fkeymap_size;
int delay[2];
int *data = (int *)arg;
/* XXX */
@ -406,6 +418,10 @@ atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags)
&& (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD))
return ENXIO;
atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
get_typematic(kbd);
delay[0] = kbd->kb_delay1;
delay[1] = kbd->kb_delay2;
atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay);
KBD_INIT_DONE(kbd);
}
if (!KBD_IS_CONFIGURED(kbd)) {
@ -430,6 +446,7 @@ static int
atkbd_intr(keyboard_t *kbd, void *arg)
{
atkbd_state_t *state;
int delay[2];
int c;
if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) {
@ -451,6 +468,10 @@ atkbd_intr(keyboard_t *kbd, void *arg)
init_keyboard(state->kbdc, &kbd->kb_type,
kbd->kb_config);
atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
get_typematic(kbd);
delay[0] = kbd->kb_delay1;
delay[1] = kbd->kb_delay2;
atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay);
KBD_FOUND_DEVICE(kbd);
}
}
@ -973,6 +994,39 @@ atkbd_poll(keyboard_t *kbd, int on)
/* local functions */
static int
get_typematic(keyboard_t *kbd)
{
#ifdef __i386__
/*
* Only some systems allow us to retrieve the keyboard repeat
* rate previously set via the BIOS...
*/
struct vm86frame vmf;
u_int32_t p;
bzero(&vmf, sizeof(vmf));
vmf.vmf_ax = 0xc000;
vm86_intcall(0x15, &vmf);
if ((vmf.vmf_eflags & PSL_C) || vmf.vmf_ah)
return ENODEV;
p = BIOS_PADDRTOVADDR(((u_int32_t)vmf.vmf_es << 4) + vmf.vmf_bx);
if ((readb(p + 6) & 0x40) == 0) /* int 16, function 0x09 supported? */
return ENODEV;
vmf.vmf_ax = 0x0900;
vm86_intcall(0x16, &vmf);
if ((vmf.vmf_al & 0x08) == 0) /* int 16, function 0x0306 supported? */
return ENODEV;
vmf.vmf_ax = 0x0306;
vm86_intcall(0x16, &vmf);
kbd->kb_delay1 = typematic_delay(vmf.vmf_bh << 5);
kbd->kb_delay2 = typematic_rate(vmf.vmf_bl);
return 0;
#else
return ENODEV;
#endif /* __i386__ */
}
static int
setup_kbd_port(KBDC kbdc, int port, int intr)
{