NetBSD/sys/arch/pmax/dev/qvss_compat.c

652 lines
16 KiB
C

/* $NetBSD: qvss_compat.c,v 1.26 2000/06/29 07:51:08 mrg 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
* Ralph Campbell and Rick Macklem.
*
* 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.
*
* @(#)fb.c 8.1 (Berkeley) 6/10/93
*/
/*
* devGraphics.c --
*
* This file contains machine-dependent routines for the graphics device.
*
* Copyright (C) 1989 Digital Equipment Corporation.
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appears in all copies.
* Digital Equipment Corporation makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* from: Header: /sprite/src/kernel/dev/ds3100.md/RCS/devGraphics.c,
* v 9.2 90/02/13 22:16:24 shirriff Exp SPRITE (DECWRL)";
*/
/*
* This file has all the routines common to the various frame buffer drivers
* including a generic ioctl routine. The pmax_fb structure is passed into the
* routines and has device specifics stored in it.
* The LK201 keycode mapping routine is also here along with initialization
* functions for the keyboard and mouse.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/mman.h>
#include <sys/vnode.h>
#include <sys/resourcevar.h>
#include <uvm/uvm_extern.h>
#include <miscfs/specfs/specdev.h>
#include <dev/dec/lk201.h> /* LK-201 keycodes */
#include <machine/fbio.h>
#include <machine/fbvar.h>
#include <machine/pmioctl.h> /* X11R5 Xserver ioctls */
#include <pmax/dev/dcvar.h> /* DZ-11 chip console I/O */
#include <pmax/dev/dtopvar.h> /* dtop console I/O decls */
#include <pmax/dev/fbreg.h> /* XXX should be renamed fbvar.h */
#include <pmax/dev/qvssvar.h> /* our own externs */
#include <pmax/pmax/cons.h>
#include <pmax/pmax/pmaxtype.h>
#include <pmax/tc/sccvar.h> /* ioasic z8530 I/O decls */
#include "dc.h"
#include "scc.h"
#include "dtop.h"
/*
* Prototypes of local functions
*/
static void genKbdEvent __P((int ch));
static void genMouseEvent __P((void *newRepPtr));
static void genMouseButtons __P((void *newRepPtr));
extern struct fbinfo *firstfi; /* XXX */
/*
* Initialize the old-style pmax framebuffer structure from a new-style
* rcons structure. Can die when all the old style pmax_fb structures
* are gone. Note that the QVSS/pm mapped event buffer includes the
* fbu field initialized below.
*/
void
init_pmaxfbu(fi)
struct fbinfo *fi;
{
int tty_rows, tty_cols; /* rows, cols for glass-tty mode */
struct fbuaccess *fbu = NULL;
if (fi == NULL || fi->fi_fbu == NULL)
panic("init_pmaxfb: given null pointer to framebuffer\n");
/* XXX don't rely on there being a pmax_fb struct */
fbu = fi->fi_fbu;
/* fb dimensions */
fbu->scrInfo.max_x = fi->fi_type.fb_width;
fbu->scrInfo.max_y = fi->fi_type.fb_height;
fbu->scrInfo.max_cur_x = fbu->scrInfo.max_x - 1;
fbu->scrInfo.max_cur_y = fbu->scrInfo.max_y - 1;
/* these have the same initial value on qvss-style framebuffers */
fbu->scrInfo.version = 11;
fbu->scrInfo.mthreshold = 4;
fbu->scrInfo.mscale = 2;
/* this is not always right (pm on kn01) but it's a common case */
fbu->scrInfo.min_cur_x = 0;
fbu->scrInfo.min_cur_y = 0;
/*
* Compute glass-tty dimensions. These don't belong here
* anymore, but the Ultrix and 4.3+ bsd drivers put them
* in the event structure mapped into user address space.
*/
tty_cols = 80;
/* A guess, but correct for 1024x864, 1024x768 and 1280x1024 */
tty_rows = (fi->fi_type.fb_height / 15) - 1;
#ifdef notdef
if (tty_rows != fbu->scrInfo.max_row ||
tty_cols != fbu->scrInfo.max_col)
printf("framebuffer init: size mismatch: given %dx%d, compute %dx%d\n",
fbu->scrInfo.max_row, fbu->scrInfo.max_col,
tty_rows, tty_cols);
#endif
pmEventQueueInit(&fi->fi_fbu->scrInfo.qe);
}
/*
* Initialize the qvss-style ringbuffer of mouse button/move
* events to be empty. Called both when initializing the
* console softc and on each new open of that device.
*/
void
pmEventQueueInit(qe)
pmEventQueue *qe;
{
qe->timestamp_ms = TO_MS(time);
qe->eSize = PM_MAXEVQ;
qe->eHead = qe->eTail = 0;
qe->tcSize = MOTION_BUFFER_SIZE;
qe->tcNext = 0;
}
/*
*----------------------------------------------------------------------
*
* fbKbdEvent --
*
* Process a received character.
*
* Results:
* None.
*
* Side effects:
* Events added to the queue.
*
*----------------------------------------------------------------------
*/
void
fbKbdEvent(ch, fi)
int ch;
struct fbinfo *fi;
{
pmEvent *eventPtr;
int i;
struct fbuaccess *fbu = NULL;
if (!fi->fi_open)
return;
fbu = fi->fi_fbu;
/*
* See if there is room in the queue.
*/
i = PM_EVROUND(fbu->scrInfo.qe.eTail + 1);
if (i == fbu->scrInfo.qe.eHead)
return;
/*
* Add the event to the queue.
*/
eventPtr = &fbu->events[fbu->scrInfo.qe.eTail];
eventPtr->type = BUTTON_RAW_TYPE;
eventPtr->device = KEYBOARD_DEVICE;
eventPtr->x = fbu->scrInfo.mouse.x;
eventPtr->y = fbu->scrInfo.mouse.y;
eventPtr->time = TO_MS(time);
eventPtr->key = ch;
fbu->scrInfo.qe.eTail = i;
selwakeup(&fi->fi_selp);
}
/*
*----------------------------------------------------------------------
*
* fbMouseEvent --
*
* Process a mouse event.
*
* Results:
* None.
*
* Side effects:
* An event is added to the event queue.
*
*----------------------------------------------------------------------
*/
void
fbMouseEvent(newRepPtr, fi)
MouseReport *newRepPtr;
struct fbinfo *fi;
{
unsigned milliSec;
int i;
pmEvent *eventPtr;
struct fbuaccess *fbu = NULL;
if (!fi->fi_open)
return;
fbu = fi->fi_fbu;
milliSec = TO_MS(time);
/*
* Check to see if we have to accelerate the mouse
*/
if (fbu->scrInfo.mscale >= 0) {
if (newRepPtr->dx >= fbu->scrInfo.mthreshold) {
newRepPtr->dx +=
(newRepPtr->dx - fbu->scrInfo.mthreshold) *
fbu->scrInfo.mscale;
}
if (newRepPtr->dy >= fbu->scrInfo.mthreshold) {
newRepPtr->dy +=
(newRepPtr->dy - fbu->scrInfo.mthreshold) *
fbu->scrInfo.mscale;
}
}
/*
* Update mouse position
*/
if (newRepPtr->state & MOUSE_X_SIGN) {
fbu->scrInfo.mouse.x += newRepPtr->dx;
if (fbu->scrInfo.mouse.x > fbu->scrInfo.max_cur_x)
fbu->scrInfo.mouse.x = fbu->scrInfo.max_cur_x;
} else {
fbu->scrInfo.mouse.x -= newRepPtr->dx;
if (fbu->scrInfo.mouse.x < fbu->scrInfo.min_cur_x)
fbu->scrInfo.mouse.x = fbu->scrInfo.min_cur_x;
}
if (newRepPtr->state & MOUSE_Y_SIGN) {
fbu->scrInfo.mouse.y -= newRepPtr->dy;
if (fbu->scrInfo.mouse.y < fbu->scrInfo.min_cur_y)
fbu->scrInfo.mouse.y = fbu->scrInfo.min_cur_y;
} else {
fbu->scrInfo.mouse.y += newRepPtr->dy;
if (fbu->scrInfo.mouse.y > fbu->scrInfo.max_cur_y)
fbu->scrInfo.mouse.y = fbu->scrInfo.max_cur_y;
}
/*
* Move the hardware cursor.
*/
(*fi->fi_driver->fbd_poscursor)
(fi, fbu->scrInfo.mouse.x, fbu->scrInfo.mouse.y);
/*
* Store the motion event in the motion buffer.
*/
fbu->tcs[fbu->scrInfo.qe.tcNext].time = milliSec;
fbu->tcs[fbu->scrInfo.qe.tcNext].x = fbu->scrInfo.mouse.x;
fbu->tcs[fbu->scrInfo.qe.tcNext].y = fbu->scrInfo.mouse.y;
if (++fbu->scrInfo.qe.tcNext >= MOTION_BUFFER_SIZE)
fbu->scrInfo.qe.tcNext = 0;
if (fbu->scrInfo.mouse.y < fbu->scrInfo.mbox.bottom &&
fbu->scrInfo.mouse.y >= fbu->scrInfo.mbox.top &&
fbu->scrInfo.mouse.x < fbu->scrInfo.mbox.right &&
fbu->scrInfo.mouse.x >= fbu->scrInfo.mbox.left)
return;
fbu->scrInfo.mbox.bottom = 0;
if (PM_EVROUND(fbu->scrInfo.qe.eTail + 1) == fbu->scrInfo.qe.eHead)
return;
i = PM_EVROUND(fbu->scrInfo.qe.eTail - 1);
if ((fbu->scrInfo.qe.eTail != fbu->scrInfo.qe.eHead) &&
(i != fbu->scrInfo.qe.eHead)) {
pmEvent *eventPtr;
eventPtr = &fbu->events[i];
if (eventPtr->type == MOTION_TYPE) {
eventPtr->x = fbu->scrInfo.mouse.x;
eventPtr->y = fbu->scrInfo.mouse.y;
eventPtr->time = milliSec;
eventPtr->device = MOUSE_DEVICE;
return;
}
}
/*
* Put event into queue and wakeup any waiters.
*/
eventPtr = &fbu->events[fbu->scrInfo.qe.eTail];
eventPtr->type = MOTION_TYPE;
eventPtr->time = milliSec;
eventPtr->x = fbu->scrInfo.mouse.x;
eventPtr->y = fbu->scrInfo.mouse.y;
eventPtr->device = MOUSE_DEVICE;
fbu->scrInfo.qe.eTail = PM_EVROUND(fbu->scrInfo.qe.eTail + 1);
selwakeup(&fi->fi_selp);
}
/*
*----------------------------------------------------------------------
*
* fbMouseButtons --
*
* Process mouse buttons.
*
* Results:
* None.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
void
fbMouseButtons(newRepPtr, fi)
MouseReport *newRepPtr;
struct fbinfo *fi;
{
static char temp, oldSwitch, newSwitch;
int i, j;
pmEvent *eventPtr;
static MouseReport lastRep;
struct fbuaccess *fbu = NULL;
if (!fi->fi_open)
return;
fbu = fi->fi_fbu;
newSwitch = newRepPtr->state & 0x07;
oldSwitch = lastRep.state & 0x07;
temp = oldSwitch ^ newSwitch;
if (temp == 0)
return;
for (j = 1; j < 8; j <<= 1) {
if ((j & temp) == 0)
continue;
/*
* Check for room in the queue
*/
i = PM_EVROUND(fbu->scrInfo.qe.eTail+1);
if (i == fbu->scrInfo.qe.eHead)
return;
/*
* Put event into queue.
*/
eventPtr = &fbu->events[fbu->scrInfo.qe.eTail];
switch (j) {
case RIGHT_BUTTON:
eventPtr->key = EVENT_RIGHT_BUTTON;
break;
case MIDDLE_BUTTON:
eventPtr->key = EVENT_MIDDLE_BUTTON;
break;
case LEFT_BUTTON:
eventPtr->key = EVENT_LEFT_BUTTON;
}
if (newSwitch & j)
eventPtr->type = BUTTON_DOWN_TYPE;
else
eventPtr->type = BUTTON_UP_TYPE;
eventPtr->device = MOUSE_DEVICE;
eventPtr->time = TO_MS(time);
eventPtr->x = fbu->scrInfo.mouse.x;
eventPtr->y = fbu->scrInfo.mouse.y;
fbu->scrInfo.qe.eTail = i;
}
selwakeup(&fi->fi_selp);
lastRep = *newRepPtr;
fbu->scrInfo.mswitches = newSwitch;
}
/*
* Use vm_mmap() to map the frame buffer and shared data into the user's
* address space.
* Return errno if there was an error.
*/
int
fbmmap_fb(fi, dev, data, p)
struct fbinfo *fi;
dev_t dev;
caddr_t data;
struct proc *p;
{
int error;
vaddr_t addr;
vsize_t len;
struct vnode vn;
struct specinfo si;
struct fbuaccess *fbp;
struct fbuaccess *fbu = fi->fi_fbu;
len = mips_round_page(((vaddr_t)fbu & PGOFSET) +
sizeof(struct fbuaccess)) +
mips_round_page(fi->fi_type.fb_size);
addr = (vaddr_t)0x20000000; /* XXX */
vn.v_type = VCHR; /* XXX */
vn.v_specinfo = &si; /* XXX */
vn.v_rdev = dev; /* XXX */
/*
* Map the all the data the user needs access to into
* user space.
*/
error = uvm_mmap(&p->p_vmspace->vm_map, &addr, len,
VM_PROT_ALL, VM_PROT_ALL, MAP_SHARED, (caddr_t)&vn,
(vaddr_t)0, p->p_rlimit[RLIMIT_MEMLOCK].rlim_cur);
if (error)
return (error);
fbp = (struct fbuaccess *)(addr + ((vaddr_t)fbu & PGOFSET));
*(PM_Info **)data = &fbp->scrInfo;
fbu->scrInfo.qe.events = fbp->events;
fbu->scrInfo.qe.tcs = fbp->tcs;
fbu->scrInfo.planemask = (char *)0;
/*
* Map the frame buffer into the user's address space.
*/
fbu->scrInfo.bitmap = (char *)mips_round_page(fbp + 1);
return (0);
}
/*
* Generic functions for keyboard and mouse input.
* Just use the "generic" qvss/pm-compatible functions above, but pass them
* the soft state for the first framebuffer found on this system.
* We don't support more than one mouse, even for multiple
* framebuffers, so this should be adequate.
* It also relieves each fb driver from having to provide its own
* version of these functions.
*
* TODO: change the callers of these to pass a pointer to the struct fbinfo,
* thus finessing the problem.
*/
static void
genKbdEvent(ch)
int ch;
{
fbKbdEvent(ch, firstfi);
}
static void
genMouseEvent(newRepPtr)
void *newRepPtr;
{
fbMouseEvent(newRepPtr, firstfi);
}
static void
genMouseButtons(newRepPtr)
void *newRepPtr;
{
fbMouseButtons(newRepPtr, firstfi);
}
/*
* Configure the mouse and keyboard based on machine type
*/
void
genConfigMouse()
{
int s;
s = spltty();
switch (systype) {
#if NDC > 0
case DS_PMAX:
case DS_3MAX:
dcDivertXInput = genKbdEvent;
dcMouseEvent = genMouseEvent;
dcMouseButtons = genMouseButtons;
break;
#endif /* NDC */
#if NSCC > 0
case DS_3MIN:
case DS_3MAXPLUS:
sccDivertXInput = genKbdEvent;
sccMouseEvent = genMouseEvent;
sccMouseButtons = genMouseButtons;
break;
#endif
#if NDTOP > 0
case DS_MAXINE:
dtopDivertXInput = genKbdEvent;
dtopMouseEvent = genMouseEvent;
dtopMouseButtons = genMouseButtons;
break;
#endif
default:
printf("Can't configure mouse/keyboard\n");
};
splx(s);
}
/*
* and deconfigure them
*/
void
genDeconfigMouse()
{
int s;
s = spltty();
switch (systype) {
#if NDC > 0
case DS_PMAX:
case DS_3MAX:
dcDivertXInput = NULL;
dcMouseEvent = NULL;
dcMouseButtons = NULL;
break;
#endif /* NDC */
#if NSCC > 0
case DS_3MIN:
case DS_3MAXPLUS:
sccDivertXInput = NULL;
sccMouseEvent = NULL;
sccMouseButtons = NULL;
break;
#endif
#if NDTOP > 0
case DS_MAXINE:
dtopDivertXInput = NULL;
dtopMouseEvent = NULL;
dtopMouseButtons = NULL;
break;
#endif
default:
printf("Can't deconfigure mouse/keyboard\n");
};
}
/**
** And a mouse-report handler for redirected mouse input.
** Could arguably be in its own source file, but it's only
** used when the kernel is performing mouse tracking.
**/
/*
* Mouse-event parser. Called as an upcall with each character
* read from a serial port. Accumulates complete mouse-event
* reports and passes them up to framebuffer layer.
* Mouse events are reported as a 3-byte sequence:
* header+button state, delta-x, delta-y
*/
void
mouseInput(cc)
int cc;
{
MouseReport *mrp;
static MouseReport currentRep;
mrp = &currentRep;
mrp->byteCount++;
if (cc & MOUSE_START_FRAME) {
/*
* The first mouse report byte (button state).
*/
mrp->state = cc;
if (mrp->byteCount > 1)
mrp->byteCount = 1;
} else if (mrp->byteCount == 2) {
/*
* The second mouse report byte (delta x).
*/
mrp->dx = cc;
} else if (mrp->byteCount == 3) {
/*
* The final mouse report byte (delta y).
*/
mrp->dy = cc;
mrp->byteCount = 0;
if (mrp->dx != 0 || mrp->dy != 0) {
/*
* If the mouse moved,
* post a motion event.
*/
(genMouseEvent)(mrp);
}
(genMouseButtons)(mrp);
}
}