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Don't issue a controller self-test...

This commit is contained in:
mycroft 1995-01-07 22:48:29 +00:00
parent 06b0414491
commit e06bc8c13e
1 changed files with 49 additions and 52 deletions
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101
sys/arch/i386/isa/pms.c
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@ -1,4 +1,4 @@
/* $NetBSD: pms.c,v 1.18 1995/01/03 01:30:58 mycroft Exp $ */
/* $NetBSD: pms.c,v 1.19 1995/01/07 22:48:29 mycroft Exp $ */
/*-
* Copyright (c) 1994 Charles Hannum.
@ -55,9 +55,9 @@
#include <i386/isa/isavar.h>
#define PMS_DATA 0 /* offset for data port, read-write */
#define PMS_CNTRL 4 /* offset for control port, write-only */
#define PMS_STATUS 4 /* offset for status port, read-only */
#define PMS_DATA 0x60 /* offset for data port, read-write */
#define PMS_CNTRL 0x64 /* offset for control port, write-only */
#define PMS_STATUS 0x64 /* offset for status port, read-only */
#define PMS_NPORTS 8
/* status bits */
@ -70,7 +70,6 @@
#define PMS_AUX_ENABLE 0xa7 /* enable auxiliary port */
#define PMS_AUX_DISABLE 0xa8 /* disable auxiliary port */
#define PMS_MAGIC_1 0xa9 /* XXX */
#define PMS_MAGIC_2 0xaa /* XXX */
#define PMS_8042_CMD 0x65
@ -94,7 +93,6 @@ struct pms_softc { /* driver status information */
struct clist sc_q;
struct selinfo sc_rsel;
int sc_iobase; /* I/O port base */
u_char sc_state; /* mouse driver state */
#define PMS_OPEN 0x01 /* device is open */
#define PMS_ASLP 0x02 /* waiting for mouse data */
@ -106,55 +104,55 @@ int pmsprobe __P((struct device *, void *, void *));
void pmsattach __P((struct device *, struct device *, void *));
int pmsintr __P((struct pms_softc *));
struct cfdriver pmscd = {\
struct cfdriver pmscd = {
NULL, "pms", pmsprobe, pmsattach, DV_TTY, sizeof(struct pms_softc)
};
#define PMSUNIT(dev) (minor(dev))
static inline void
pms_flush(iobase)
int iobase;
pms_flush()
{
u_char c;
while (c = inb(iobase+PMS_STATUS) & 0x03)
while (c = inb(PMS_STATUS) & 0x03)
if ((c & PMS_OBUF_FULL) == PMS_OBUF_FULL) {
/* XXX - delay is needed to prevent some keyboards from
wedging when the system boots */
delay(6);
(void) inb(iobase+PMS_DATA);
(void) inb(PMS_DATA);
}
}
static inline void
pms_dev_cmd(iobase, value)
int iobase;
pms_dev_cmd(value)
u_char value;
{
pms_flush(iobase);
outb(iobase+PMS_CNTRL, 0xd4);
pms_flush(iobase);
outb(iobase+PMS_DATA, value);
pms_flush();
outb(PMS_CNTRL, 0xd4);
pms_flush();
outb(PMS_DATA, value);
}
static inline void
pms_aux_cmd(iobase, value)
int iobase;
pms_aux_cmd(value)
u_char value;
{
pms_flush(iobase);
outb(iobase+PMS_CNTRL, value);
pms_flush();
outb(PMS_CNTRL, value);
}
static inline void
pms_pit_cmd(iobase, value)
int iobase;
pms_pit_cmd(value)
u_char value;
{
pms_flush(iobase);
outb(iobase+PMS_CNTRL, 0x60);
pms_flush(iobase);
outb(iobase+PMS_DATA, value);
pms_flush();
outb(PMS_CNTRL, 0x60);
pms_flush();
outb(PMS_DATA, value);
}
int
@ -163,14 +161,16 @@ pmsprobe(parent, match, aux)
void *match, *aux;
{
struct isa_attach_args *ia = aux;
int iobase = ia->ia_iobase;
u_char x;
pms_dev_cmd(iobase, PMS_RESET);
pms_aux_cmd(iobase, PMS_MAGIC_1);
pms_aux_cmd(iobase, PMS_MAGIC_2);
x = inb(iobase+PMS_DATA);
pms_pit_cmd(iobase, PMS_INT_DISABLE);
if (ia->ia_iobase != 0x60)
return 0;
pms_dev_cmd(PMS_RESET);
pms_aux_cmd(PMS_MAGIC_1);
delay(1000);
x = inb(PMS_DATA);
pms_pit_cmd(PMS_INT_DISABLE);
if (x & 0x04)
return 0;
@ -186,12 +186,10 @@ pmsattach(parent, self, aux)
{
struct pms_softc *sc = (void *)self;
struct isa_attach_args *ia = aux;
int iobase = ia->ia_iobase;
printf("\n");
/* Other initialization was done by pmsprobe. */
sc->sc_iobase = iobase;
sc->sc_state = 0;
sc->sc_ih.ih_fun = pmsintr;
@ -225,17 +223,17 @@ pmsopen(dev, flag)
sc->sc_x = sc->sc_y = 0;
/* Enable interrupts. */
pms_dev_cmd(sc->sc_iobase, PMS_DEV_ENABLE);
pms_aux_cmd(sc->sc_iobase, PMS_AUX_ENABLE);
pms_dev_cmd(PMS_DEV_ENABLE);
pms_aux_cmd(PMS_AUX_ENABLE);
#if 0
pms_dev_cmd(sc->sc_iobase, PMS_SET_RES);
pms_dev_cmd(sc->sc_iobase, 3); /* 8 counts/mm */
pms_dev_cmd(sc->sc_iobase, PMS_SET_SCALE21);
pms_dev_cmd(sc->sc_iobase, PMS_SET_SAMPLE);
pms_dev_cmd(sc->sc_iobase, 100); /* 100 samples/sec */
pms_dev_cmd(sc->sc_iobase, PMS_SET_STREAM);
pms_dev_cmd(PMS_SET_RES);
pms_dev_cmd(3); /* 8 counts/mm */
pms_dev_cmd(PMS_SET_SCALE21);
pms_dev_cmd(PMS_SET_SAMPLE);
pms_dev_cmd(100); /* 100 samples/sec */
pms_dev_cmd(PMS_SET_STREAM);
#endif
pms_pit_cmd(sc->sc_iobase, PMS_INT_ENABLE);
pms_pit_cmd(PMS_INT_ENABLE);
return 0;
}
@ -248,9 +246,9 @@ pmsclose(dev, flag)
struct pms_softc *sc = pmscd.cd_devs[PMSUNIT(dev)];
/* Disable interrupts. */
pms_dev_cmd(sc->sc_iobase, PMS_DEV_DISABLE);
pms_pit_cmd(sc->sc_iobase, PMS_INT_DISABLE);
pms_aux_cmd(sc->sc_iobase, PMS_AUX_DISABLE);
pms_dev_cmd(PMS_DEV_DISABLE);
pms_pit_cmd(PMS_INT_DISABLE);
pms_aux_cmd(PMS_AUX_DISABLE);
sc->sc_state &= ~PMS_OPEN;
@ -367,7 +365,6 @@ int
pmsintr(sc)
struct pms_softc *sc;
{
int iobase = sc->sc_iobase;
static int state = 0;
static u_char buttons;
u_char changed;
@ -376,27 +373,27 @@ pmsintr(sc)
if ((sc->sc_state & PMS_OPEN) == 0) {
/* Interrupts are not expected. Discard the byte. */
(void) inb(iobase + PMS_DATA);
pms_flush();
return 0;
}
switch (state) {
case 0:
buttons = inb(iobase + PMS_DATA);
buttons = inb(PMS_DATA);
if ((buttons & 0xc0) == 0)
++state;
break;
case 1:
dx = inb(iobase + PMS_DATA);
dx = inb(PMS_DATA);
/* Bounding at -127 avoids a bug in XFree86. */
dx = (dx == -128) ? -127 : dx;
++state;
break;
case 2:
dy = inb(iobase + PMS_DATA);
dy = inb(PMS_DATA);
dy = (dy == -128) ? -127 : dy;
state = 0;