NetBSD/sys/arch/newsmips/dev/ms.c

757 lines
16 KiB
C

/* $NetBSD: ms.c,v 1.4 1999/12/18 06:54:05 tsubai Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Sony Corp. and Kazumasa Utashiro of Software Research Associates, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: $Hdr: ms.c,v 4.300 91/06/09 06:22:04 root Rel41 $ SONY
*
* @(#)ms.c 8.1 (Berkeley) 6/11/93
*/
/*
* mouse
*/
#include "fb.h"
#include "ms.h"
#include <sys/types.h>
#include <machine/cpu.h>
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/user.h>
#include <sys/buf.h>
#include <sys/malloc.h>
#include <sys/systm.h>
#include <sys/uio.h>
#include <sys/kernel.h>
#include <sys/file.h>
#include <sys/device.h>
#include <machine/autoconf.h>
#include <machine/mouse.h>
#include <newsmips/dev/msreg.h>
#include <newsmips/dev/scc.h>
#if NFB == 0
#define lock_bitmap()
#define updateCursor(x, y, flag)
#define unlock_bitmap()
#endif
#ifndef mips
#define volatile
#endif
static struct ms_stat ms_stat[NMS];
#define hb_device ms_softc
struct ms_softc {
struct device sc_dev;
};
static int msmatch __P((struct device *, struct cfdata *, void *));
static void msattach __P((struct device *, struct device *, void *));
struct cfattach ms_ca = {
sizeof(struct ms_softc), msmatch, msattach
};
extern struct cfdriver ms_cd;
static int ms_intr __P((void *));
static void msq_init __P((int));
static int msq_stat __P((int));
static struct ms_event * msq_read __P((int));
static struct ms_event * msq_write __P((int));
static void msq_flush __P((int, char));
static void msselwakeup __P((struct ms_stat *));
void mssint __P((void));
static int msputevent __P((int, int, int, int));
static void msconv __P((int, char[]));
static void mscheckevent __P((int));
extern void kbm_open(int);
extern void kbm_close(int);
extern void lock_bitmap __P((void));
extern void updateCursor __P((int *, int *, int));
extern void unlock_bitmap __P((void));
extern void selwakeup();
extern int xgetc();
extern int tty00_is_console;
#ifdef news3400
#define splms cpu_spl2 /* Lite2 used spl4 */
#else
#define splms spl5
#endif
static int
msmatch(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct confargs *ca = aux;
if (strcmp(ca->ca_name, "ms"))
return 0;
return 1;
}
static void
msattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
int intr = self->dv_cfdata->cf_level;
if (intr == -1)
intr = 2; /* XXX */
hb_intr_establish(intr, IPL_TTY, ms_intr, self);
printf(" level %d\n", intr);
}
int
ms_intr(v)
void *v;
{
kbm_rint(SCC_MOUSE);
return 1;
}
/* queue structure operators */
static void
msq_init(unit)
int unit;
{
register volatile struct ms_queue *q = ms_stat[unit].mss_queue;
q->mq_head = q->mq_tail = 0;
}
static int
msq_stat(unit)
int unit;
{
register volatile struct ms_queue *q = ms_stat[unit].mss_queue;
while (q->mq_head != q->mq_tail) {
if (!q->mq_queue[q->mq_head].mse_inval)
break;
q->mq_head = ++q->mq_head % MS_MAXREPORT;
}
return (q->mq_head != q->mq_tail);
}
static struct ms_event *
msq_read(unit)
int unit;
{
register /*volatile*/ struct ms_queue *q = ms_stat[unit].mss_queue;
register struct ms_event *data;
while (q->mq_head != q->mq_tail && q->mq_queue[q->mq_head].mse_inval)
q->mq_head = ++q->mq_head % MS_MAXREPORT;
if (q->mq_head == q->mq_tail) {
data = NULL;
} else {
data = q->mq_queue + q->mq_head++;
q->mq_head %= MS_MAXREPORT;
}
return (data);
}
static struct ms_event *
msq_write(unit)
int unit;
{
register /*volatile*/ struct ms_queue *q = ms_stat[unit].mss_queue;
register struct ms_event *data = q->mq_queue + q->mq_tail;
register int new;
/* if queue is full, newest data is gone away */
new = (q->mq_tail + 1) % MS_MAXREPORT;
if (new != q->mq_head)
q->mq_tail = new;
return (data);
}
static void
msq_flush(unit, trig)
int unit;
char trig;
{
register volatile struct ms_queue *q = ms_stat[unit].mss_queue;
register int i;
i = q->mq_head;
while (i != q->mq_tail) {
if (q->mq_queue[i].mse_trig == trig)
q->mq_queue[i].mse_inval = -1;
i = ++i % MS_MAXREPORT;
}
}
/*
* Mouse open function.
*/
int
msopen(dev, flag, mode, p)
dev_t dev;
int flag, mode;
struct proc *p;
{
register int unit = MSUNIT(dev);
register struct ms_stat *ms = &ms_stat[unit];
register struct hb_device *ii;
/* check device */
if (unit < 0 || unit >= NMS)
return(ENXIO);
ii = ms_cd.cd_devs[unit];
/* check duplicable open */
if (ms->mss_stat & MS_ACTIVE)
return(EBUSY);
ms->mss_queue = malloc(sizeof(struct ms_queue), M_DEVBUF, M_WAITOK);
if (ms->mss_queue == NULL)
return (ENOMEM);
msq_init(unit);
ms->mss_mode = flag;
ms->mss_stat = MS_ACTIVE;
/* communicate to IOP .. clear event mask, set initial xy. */
ms->mss_eventmask = 0;
ms->mss_data.md_sw = 0; /* XXX */
ms->mss_data.md_x = 0;
ms->mss_data.md_y = 0;
ms->mss_param.mp_delta = 5;
ms->mss_param.mp_mag = 3;
ms->mss_range.mr_min.mc_x = 0x80000000;
ms->mss_range.mr_min.mc_y = 0x80000000;
ms->mss_range.mr_max.mc_x = 0x7fffffff;
ms->mss_range.mr_max.mc_y = 0x7fffffff;
if (p->p_pgrp->pg_id == 0) {
if (ms->mss_pgrp == 0)
ms->mss_pgrp = p->p_pid;
p->p_pgrp->pg_id = ms->mss_pgrp;
}
if (tty00_is_console)
kbm_open(SCC_KEYBOARD);
kbm_open(SCC_MOUSE);
return (0);
}
/*
* Mouse close function.
*/
/*ARGSUSED*/
int
msclose(dev, flag)
dev_t dev;
int flag;
{
int unit = MSUNIT(dev);
register struct ms_stat *ms = &ms_stat[unit];
register struct hb_device *ii;
ii = ms_cd.cd_devs[0]; /* XXX-wapiko */
/* check unit no. */
if (unit < 0 || unit >= NMS || ii == NULL)
return ENXIO;
/* check status */
if (!(ms->mss_stat & MS_ACTIVE))
return ENXIO;
/* clear eventmask and status */
ms->mss_stat = 0;
ms->mss_eventmask = 0;
free(ms->mss_queue, M_DEVBUF);
ms->mss_pgrp = 0;
if (tty00_is_console)
kbm_close(SCC_KEYBOARD);
kbm_close(SCC_MOUSE);
return (0);
}
/*
* Mouse read function.
*/
int
msread(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
register int unit = MSUNIT(dev);
register struct ms_stat *ms = &ms_stat[unit];
register struct hb_device *ii;
register volatile struct ms_event *data;
struct ms_data xy;
int s, error;
ii = ms_cd.cd_devs[0]; /* XXX-wapiko */
/* check argument */
if (unit < 0 || unit >= NMS || ii == NULL)
return ENXIO;
/* event mode -> waiting */
if (ms->mss_eventmask & MS_EMEVENT) {
s = splms();
if (msq_stat(unit) == 0 && (ms->mss_stat & MS_NBIO)) {
splx(s);
return (EWOULDBLOCK);
}
while (msq_stat(unit) == 0) {
ms->mss_stat |= MS_EVWAIT;
error = tsleep(ms, MSPRI | PCATCH, "mouse", 0);
ms->mss_stat &= ~MS_EVWAIT;
if (error) {
splx(s);
return error;
}
}
splx(s);
if(MSOLDIF(dev)) {
while ((data = msq_read(unit)) != NULL &&
uio->uio_resid >= sizeof(struct ms_data)) {
error = uiomove((caddr_t)&data->mse_data,
sizeof(struct ms_data), uio);
if (error)
return error;
}
} else {
while ((data = msq_read(unit)) != NULL &&
uio->uio_resid >= sizeof(struct ms_event)) {
error = uiomove((caddr_t)data,
sizeof(struct ms_event), uio);
if (error)
return error;
}
}
} else {
while (uio->uio_resid >= sizeof(struct ms_data)) {
s = splms();
xy = ms->mss_data;
splx(s);
error = uiomove((caddr_t)&xy,
sizeof(struct ms_data), uio);
if (error)
return error;
}
}
return 0;
}
/*
* Mouse write function
*/
int
mswrite(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
register int unit = MSUNIT(dev);
register struct ms_stat *ms = &ms_stat[unit];
register struct hb_device *ii;
struct ms_coord xy;
register int s, error;
ii = ms_cd.cd_devs[0]; /* XXX-wapiko */
/* check argument */
if (unit < 0 || unit >= NMS || ii == NULL)
return ENXIO;
while (uio->uio_resid >= sizeof(struct ms_coord)) {
error = uiomove((caddr_t)&xy, sizeof(xy), uio);
if (error)
return error;
s = splms();
ms->mss_data.md_x = xy.mc_x;
ms->mss_data.md_y = xy.mc_y;
splx(s);
lock_bitmap();
updateCursor(&ms->mss_data.md_x, &ms->mss_data.md_y, 1);
unlock_bitmap();
}
return 0;
}
/*
* Mouse I/O control function
*/
/*ARGSUSED*/
int
msioctl(dev, cmd, data, flag, p)
dev_t dev;
int cmd;
caddr_t data;
int flag;
struct proc *p;
{
register int unit = MSUNIT(dev);
register struct ms_stat *ms = &ms_stat[unit];
register struct hb_device *ii;
register int s;
ii = ms_cd.cd_devs[0]; /* XXX-wapiko */
if (unit < 0 || unit >= NMS || ii == NULL)
return EIO;
s = splms();
switch (cmd) {
case MSIOCGETEM:
(*(int*)data) = ms->mss_eventmask;
break;
case MSIOCSETEM:
ms->mss_eventmask = *(int *)data;
break;
case MSIOCSETXY:
ms->mss_data.md_x = ((struct ms_coord*)data)->mc_x;
ms->mss_data.md_y = ((struct ms_coord*)data)->mc_y;
lock_bitmap();
updateCursor(&ms->mss_data.md_x, &ms->mss_data.md_y, 1);
unlock_bitmap();
msq_flush(unit, MSE_MOTION);
break;
case MSIOCFLUSH:
msq_init(unit);
break;
case MSIOCSETPARAM:
ms->mss_param = *(struct ms_param*)data;
break;
case MSIOCSETRANGE:
ms->mss_range = *(struct ms_range*)data;
break;
case FIONBIO:
if (*(int *)data)
ms->mss_stat |= MS_NBIO;
else
ms->mss_stat &= ~MS_NBIO;
break;
case FIOASYNC:
if (*(int *)data)
ms->mss_stat |= MS_ASYNC;
else
ms->mss_stat &= ~MS_ASYNC;
break;
case TIOCSPGRP:
ms->mss_pgrp = *(int *)data;
break;
case TIOCGPGRP:
*(int *)data = ms->mss_pgrp;
break;
default:
splx(s);
return ENOTTY;
}
splx(s);
return 0;
}
int
mspoll(dev, flag, p)
dev_t dev;
int flag;
struct proc *p;
{
register int unit = MSUNIT(dev);
register struct ms_stat *ms;
int s;
if (unit < 0 || unit >= NMS)
return(0);
s = splms();
ms = &ms_stat[unit];
switch(flag) {
case FREAD:
if (!(ms->mss_eventmask & MS_EMEVENT))
goto win;
if(msq_stat(unit))
goto win;
if (ms->mss_rsel && ms->mss_rsel->p_wchan == (caddr_t)&selwait)
ms->mss_stat |= MS_RCOLL;
else
ms->mss_rsel = p;
break;
case FWRITE:
goto win;
}
splx(s);
return(0);
win:
splx(s);
return(1);
}
static void
msselwakeup(ms)
register struct ms_stat *ms;
{
if (ms->mss_rsel) {
selwakeup(ms->mss_rsel);
ms->mss_stat &= ~MS_RCOLL;
ms->mss_rsel = 0;
}
if (ms->mss_stat & MS_ASYNC)
gsignal(ms->mss_pgrp, SIGIO);
}
void
mssint()
{
printf("mssint\n");
}
static int
msputevent(unit, trig, dir, code)
int unit, trig, dir, code;
{
register struct ms_stat *ms = &ms_stat[unit];
register volatile struct ms_event *me;
register int s;
me = msq_write(unit);
s = splclock();
me->mse_time = time;
me->mse_inval = 0;
splx(s);
me->mse_trig = trig;
me->mse_dir = dir;
me->mse_code = code;
me->mse_data = ms->mss_data;
if (ms->mss_stat & MS_EVWAIT)
wakeup(ms);
msselwakeup(ms);
return (0);
}
/*
* for keyboard
*/
int
mskeytrigger(unit, up, keycode)
int unit;
int up;
int keycode;
{
register struct ms_stat *ms = &ms_stat[unit];
if((ms->mss_eventmask & MS_EMEVENT) == 0)
return 0;
if((ms->mss_eventmask & MS_EMKEY) == 0)
return 0;
(void) msputevent(unit, MSE_KEY, up ? MSE_UP : MSE_DOWN, keycode);
return 1;
}
/*
* msconv - convert mouse hardware reports(3 bytes) into internal mouse data
* it leaves the old mouse data in ms_data_old and
* new mouse data in ms_data.
*/
static void
msconv(unit, rep)
int unit;
register char rep[];
{
register struct ms_stat *ms = &ms_stat[unit];
register int s_byte;
register int sw = 0;
register int dx, dy;
int adx, ady;
ms->mss_data_old = ms->mss_data;
/* switch status */
s_byte = rep[MS_S_BYTE];
if (s_byte & MS_S_SW1)
sw |= MS_BUTNL;
if (s_byte & MS_S_SW2)
sw |= MS_BUTNR;
if (s_byte & MS_S_SW3)
sw |= MS_BUTNM;
ms->mss_data.md_sw = sw;
/* delta x */
dx = rep[MS_X_BYTE] & MS_X_X06;
if (s_byte & MS_S_X7)
dx = (~0&~MS_X_X06)|dx;
dy = rep[MS_Y_BYTE] & MS_Y_Y06;
if (s_byte & MS_S_Y7)
dy = (~0&~MS_Y_Y06)|dy;
#define ABS(x) ((x)>=0 ? (x) : -(x))
adx = ABS(dx);
ady = ABS(dy);
#undef ABS
if (adx > ms->mss_param.mp_delta) {
adx = ms->mss_param.mp_delta +
(adx - ms->mss_param.mp_delta) * ms->mss_param.mp_mag;
if (dx < 0)
dx = -adx;
else
dx = adx;
}
if (ady > ms->mss_param.mp_delta) {
ady = ms->mss_param.mp_delta +
(ady - ms->mss_param.mp_delta) * ms->mss_param.mp_mag;
if (dy < 0)
dy = -ady;
else
dy = ady;
}
ms->mss_data.md_x += dx;
ms->mss_data.md_y += dy;
if (dx > 0)
ms->mss_data.md_x = imin(ms->mss_data.md_x,
ms->mss_range.mr_max.mc_x);
else
ms->mss_data.md_x = imax(ms->mss_data.md_x,
ms->mss_range.mr_min.mc_x);
if (dy > 0)
ms->mss_data.md_y = imin(ms->mss_data.md_y,
ms->mss_range.mr_max.mc_y);
else
ms->mss_data.md_y = imax(ms->mss_data.md_y,
ms->mss_range.mr_min.mc_y);
if (dx != 0 || dy != 0)
updateCursor(&ms->mss_data.md_x, &ms->mss_data.md_y, 0);
}
static void
mscheckevent(unit)
int unit;
{
register struct ms_stat *ms = &ms_stat[unit];
register int i;
register int changebits;
register int dir;
if ((ms->mss_eventmask & MS_EMEVENT) == 0)
return;
if (ms->mss_data_old.md_sw != ms->mss_data.md_sw) {
changebits = (ms->mss_data_old.md_sw ^ ms->mss_data.md_sw);
changebits &= ms->mss_eventmask;
for(i = 0; i < 3; i++) {
if(changebits & (1 << i)) {
if((1 << i) & ms->mss_data.md_sw)
dir = MSE_DOWN;
else
dir = MSE_UP;
msputevent(unit, MSE_BUTTON, dir, i);
}
}
}
if ((ms->mss_eventmask & MS_EMMOTION) &&
(ms->mss_data_old.md_x != ms->mss_data.md_x ||
ms->mss_data_old.md_y != ms->mss_data.md_y)) {
msputevent(unit, MSE_MOTION, 0, 0);
return;
}
}
/*
* _ms_helper - open the mouse line and read mouse data and
* convert them into mouse data (events)
*/
void
_ms_helper(unit)
int unit;
{
register int c;
static int counter = 0;
static char buf[MS_DB_SIZE];
#ifdef notyet /* KU:XXX */
intrcnt[INTR_MOUSE]++;
#endif
#if NBM > 0
rst_dimmer_cnt();
#endif
while ((c = xgetc(SCC_MOUSE)) >= 0) {
if (c & MS_S_MARK)
counter = 0;
buf[counter] = c;
if (++counter == 3) {
msconv(unit, buf);
mscheckevent(unit);
counter = 0;
}
}
}