478 lines
11 KiB
C
478 lines
11 KiB
C
/* $NetBSD: fb.c,v 1.3 2001/06/24 15:47:45 pk Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This software was developed by the Computer Systems Engineering group
|
|
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
|
|
* contributed to Berkeley.
|
|
*
|
|
* 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, Lawrence Berkeley Laboratory.
|
|
*
|
|
* 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) 6/11/93
|
|
*/
|
|
|
|
/*
|
|
* /dev/fb (indirect frame buffer driver). This is gross; we should
|
|
* just build cdevsw[] dynamically.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/conf.h>
|
|
|
|
#include <machine/autoconf.h>
|
|
#include <machine/kbd.h>
|
|
#include <machine/conf.h>
|
|
#include <machine/eeprom.h>
|
|
#include <sparc/dev/cons.h>
|
|
|
|
#include <dev/sun/fbio.h>
|
|
#include <dev/sun/fbvar.h>
|
|
|
|
#include "pfour.h"
|
|
|
|
static struct fbdevice *devfb;
|
|
|
|
void
|
|
fb_unblank()
|
|
{
|
|
|
|
if (devfb)
|
|
(*devfb->fb_driver->fbd_unblank)(devfb->fb_device);
|
|
}
|
|
|
|
/*
|
|
* Helper function for frame buffer devices. Decides whether
|
|
* the device can be the console output device according to
|
|
* PROM info. The result from this function may not be conclusive
|
|
* on machines with old PROMs; in that case, drivers should consult
|
|
* other sources of configuration information (e.g. EEPROM entries).
|
|
*/
|
|
#if defined(SUN4U)
|
|
/* Temporary special case for sun4u */
|
|
int
|
|
fb_is_console(node)
|
|
int node;
|
|
{
|
|
extern int fbnode;
|
|
return (node == fbnode);
|
|
}
|
|
#else
|
|
int
|
|
fb_is_console(node)
|
|
int node;
|
|
{
|
|
int fbnode;
|
|
|
|
switch (prom_version()) {
|
|
case PROM_OLDMON:
|
|
/* `node' is not valid; just check for any fb device */
|
|
return (prom_stdout() == PROMDEV_SCREEN);
|
|
|
|
case PROM_OBP_V0:
|
|
/*
|
|
* First, check if prom_stdout() represents a frame buffer,
|
|
* then match on the `fb' property on the root node, if any.
|
|
*/
|
|
if (prom_stdout() != PROMDEV_SCREEN)
|
|
return (0);
|
|
|
|
fbnode = getpropint(findroot(), "fb", 0);
|
|
return (fbnode == 0 || node == fbnode);
|
|
|
|
case PROM_OBP_V2:
|
|
case PROM_OBP_V3:
|
|
case PROM_OPENFIRM:
|
|
/* Just match the nodes */
|
|
return (node == prom_stdout_node);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
#endif /* SUN4U */
|
|
|
|
void
|
|
fb_attach(fb, isconsole)
|
|
struct fbdevice *fb;
|
|
int isconsole;
|
|
{
|
|
static int no_replace, seen_force;
|
|
|
|
/*
|
|
* We've already had a framebuffer forced into /dev/fb. Don't
|
|
* allow any more, even if this is the console.
|
|
*/
|
|
if (seen_force) {
|
|
if (devfb) { /* sanity */
|
|
printf("%s: /dev/fb already full\n",
|
|
fb->fb_device->dv_xname);
|
|
return;
|
|
} else
|
|
seen_force = 0;
|
|
}
|
|
|
|
/*
|
|
* Check to see if we're being forced into /dev/fb.
|
|
*/
|
|
if (fb->fb_flags & FB_FORCE) {
|
|
if (devfb)
|
|
printf("%s: forcefully replacing %s\n",
|
|
fb->fb_device->dv_xname,
|
|
devfb->fb_device->dv_xname);
|
|
devfb = fb;
|
|
seen_force = no_replace = 1;
|
|
goto attached;
|
|
}
|
|
|
|
/*
|
|
* Check to see if we're the console. If we are, then replace
|
|
* any currently existing framebuffer.
|
|
*/
|
|
if (isconsole) {
|
|
if (devfb)
|
|
printf("%s: replacing %s\n", fb->fb_device->dv_xname,
|
|
devfb->fb_device->dv_xname);
|
|
devfb = fb;
|
|
no_replace = 1;
|
|
goto attached;
|
|
}
|
|
|
|
/*
|
|
* For the final case, we check to see if we can replace an
|
|
* existing framebuffer, if not, say so and return.
|
|
*/
|
|
if (no_replace) {
|
|
if (devfb) { /* sanity */
|
|
printf("%s: /dev/fb already full\n",
|
|
fb->fb_device->dv_xname);
|
|
return;
|
|
} else
|
|
no_replace = 0;
|
|
}
|
|
|
|
if (devfb)
|
|
printf("%s: replacing %s\n", fb->fb_device->dv_xname,
|
|
devfb->fb_device->dv_xname);
|
|
devfb = fb;
|
|
|
|
attached:
|
|
printf("%s: attached to /dev/fb\n", devfb->fb_device->dv_xname);
|
|
}
|
|
|
|
int
|
|
fbopen(dev, flags, mode, p)
|
|
dev_t dev;
|
|
int flags, mode;
|
|
struct proc *p;
|
|
{
|
|
|
|
if (devfb == NULL)
|
|
return (ENXIO);
|
|
return (devfb->fb_driver->fbd_open)(dev, flags, mode, p);
|
|
}
|
|
|
|
int
|
|
fbclose(dev, flags, mode, p)
|
|
dev_t dev;
|
|
int flags, mode;
|
|
struct proc *p;
|
|
{
|
|
|
|
return (devfb->fb_driver->fbd_close)(dev, flags, mode, p);
|
|
}
|
|
|
|
int
|
|
fbioctl(dev, cmd, data, flags, p)
|
|
dev_t dev;
|
|
u_long cmd;
|
|
caddr_t data;
|
|
int flags;
|
|
struct proc *p;
|
|
{
|
|
|
|
return (devfb->fb_driver->fbd_ioctl)(dev, cmd, data, flags, p);
|
|
}
|
|
|
|
int
|
|
fbpoll(dev, events, p)
|
|
dev_t dev;
|
|
int events;
|
|
struct proc *p;
|
|
{
|
|
|
|
return (devfb->fb_driver->fbd_poll)(dev, events, p);
|
|
}
|
|
|
|
paddr_t
|
|
fbmmap(dev, off, prot)
|
|
dev_t dev;
|
|
off_t off;
|
|
int prot;
|
|
{
|
|
paddr_t (*map)__P((dev_t, off_t, int)) = devfb->fb_driver->fbd_mmap;
|
|
|
|
if (map == NULL)
|
|
return (-1);
|
|
return (map(dev, off, prot));
|
|
}
|
|
|
|
void
|
|
fb_setsize_obp(fb, depth, def_width, def_height, node)
|
|
struct fbdevice *fb;
|
|
int depth, def_width, def_height, node;
|
|
{
|
|
fb->fb_type.fb_width = getpropint(node, "width", def_width);
|
|
fb->fb_type.fb_height = getpropint(node, "height", def_height);
|
|
fb->fb_linebytes = getpropint(node, "linebytes",
|
|
(fb->fb_type.fb_width * depth) / 8);
|
|
}
|
|
|
|
void
|
|
fb_setsize_eeprom(fb, depth, def_width, def_height)
|
|
struct fbdevice *fb;
|
|
int depth, def_width, def_height;
|
|
{
|
|
#if defined(SUN4)
|
|
struct eeprom *eep = (struct eeprom *)eeprom_va;
|
|
|
|
if (!CPU_ISSUN4) {
|
|
printf("fb_setsize_eeprom: not sun4\n");
|
|
return;
|
|
}
|
|
|
|
/* Set up some defaults. */
|
|
fb->fb_type.fb_width = def_width;
|
|
fb->fb_type.fb_height = def_height;
|
|
|
|
if (fb->fb_flags & FB_PFOUR) {
|
|
#if NPFOUR > 0
|
|
fb_setsize_pfour(fb);
|
|
#endif
|
|
} else if (eep != NULL) {
|
|
switch (eep->eeScreenSize) {
|
|
case EE_SCR_1152X900:
|
|
fb->fb_type.fb_width = 1152;
|
|
fb->fb_type.fb_height = 900;
|
|
break;
|
|
|
|
case EE_SCR_1024X1024:
|
|
fb->fb_type.fb_width = 1024;
|
|
fb->fb_type.fb_height = 1024;
|
|
break;
|
|
|
|
case EE_SCR_1600X1280:
|
|
fb->fb_type.fb_width = 1600;
|
|
fb->fb_type.fb_height = 1280;
|
|
break;
|
|
|
|
case EE_SCR_1440X1440:
|
|
fb->fb_type.fb_width = 1440;
|
|
fb->fb_type.fb_height = 1440;
|
|
break;
|
|
|
|
default:
|
|
/*
|
|
* XXX: Do nothing, I guess.
|
|
* Should we print a warning about
|
|
* an unknown value? --thorpej
|
|
*/
|
|
break;
|
|
}
|
|
}
|
|
|
|
fb->fb_linebytes = (fb->fb_type.fb_width * depth) / 8;
|
|
#endif /* SUN4 */
|
|
}
|
|
|
|
|
|
|
|
#ifdef RASTERCONSOLE
|
|
#include <machine/kbd.h>
|
|
|
|
static void fb_bell __P((int));
|
|
|
|
#if !defined(RASTERCONS_FULLSCREEN)
|
|
static int a2int __P((char *, int));
|
|
|
|
static int
|
|
a2int(cp, deflt)
|
|
register char *cp;
|
|
register int deflt;
|
|
{
|
|
register int i = 0;
|
|
|
|
if (*cp == '\0')
|
|
return (deflt);
|
|
while (*cp != '\0')
|
|
i = i * 10 + *cp++ - '0';
|
|
return (i);
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
fb_bell(on)
|
|
int on;
|
|
{
|
|
(void)kbd_docmd(on?KBD_CMD_BELL:KBD_CMD_NOBELL, 0);
|
|
}
|
|
|
|
void
|
|
fbrcons_init(fb)
|
|
struct fbdevice *fb;
|
|
{
|
|
struct rconsole *rc = &fb->fb_rcons;
|
|
struct rasops_info *ri = &fb->fb_rinfo;
|
|
int maxrow, maxcol;
|
|
#if !defined(RASTERCONS_FULLSCREEN)
|
|
int *row, *col;
|
|
#endif
|
|
|
|
/* Set up what rasops needs to know about */
|
|
bzero(ri, sizeof *ri);
|
|
ri->ri_stride = fb->fb_linebytes;
|
|
ri->ri_bits = (caddr_t)fb->fb_pixels;
|
|
ri->ri_depth = fb->fb_type.fb_depth;
|
|
ri->ri_width = fb->fb_type.fb_width;
|
|
ri->ri_height = fb->fb_type.fb_height;
|
|
maxrow = 5000;
|
|
maxcol = 5000;
|
|
|
|
#if !defined(RASTERCONS_FULLSCREEN)
|
|
#if defined(SUN4)
|
|
if (CPU_ISSUN4) {
|
|
struct eeprom *eep = (struct eeprom *)eeprom_va;
|
|
|
|
if (eep == NULL) {
|
|
maxcol = 80;
|
|
maxrow = 34;
|
|
} else {
|
|
maxcol = eep->eeTtyCols;
|
|
maxrow = eep->eeTtyRows;
|
|
}
|
|
}
|
|
#endif /* SUN4 */
|
|
if (!CPU_ISSUN4) {
|
|
maxcol =
|
|
a2int(getpropstring(optionsnode, "screen-#columns"), 80);
|
|
maxrow =
|
|
a2int(getpropstring(optionsnode, "screen-#rows"), 34);
|
|
}
|
|
#endif /* !RASTERCONS_FULLSCREEN */
|
|
/*
|
|
* - force monochrome output
|
|
* - eraserows() hack to clear the *entire* display
|
|
* - cursor is currently enabled
|
|
* - center output
|
|
*/
|
|
ri->ri_flg = RI_FULLCLEAR | RI_CURSOR | RI_CENTER;
|
|
|
|
/* Get operations set and connect to rcons */
|
|
if (rasops_init(ri, maxrow, maxcol))
|
|
panic("fbrcons_init: rasops_init failed!");
|
|
|
|
if (ri->ri_depth == 8) {
|
|
int i;
|
|
for (i = 0; i < 16; i++) {
|
|
|
|
/*
|
|
* Cmap entries are repeated four times in the
|
|
* 32 bit wide `devcmap' entries for optimization
|
|
* purposes; see rasops(9)
|
|
*/
|
|
#define I_TO_DEVCMAP(i) ((i) | ((i)<<8) | ((i)<<16) | ((i)<<24))
|
|
|
|
/*
|
|
* Use existing colormap entries for black and white
|
|
*/
|
|
if ((i & 7) == WSCOL_BLACK) {
|
|
ri->ri_devcmap[i] = I_TO_DEVCMAP(255);
|
|
continue;
|
|
}
|
|
|
|
if ((i & 7) == WSCOL_WHITE) {
|
|
ri->ri_devcmap[i] = I_TO_DEVCMAP(0);
|
|
continue;
|
|
}
|
|
/*
|
|
* Other entries refer to ANSI map, which for now
|
|
* is setup in bt_subr.c
|
|
*/
|
|
ri->ri_devcmap[i] = I_TO_DEVCMAP(i + 1);
|
|
#undef I_TO_DEVCMAP
|
|
}
|
|
}
|
|
|
|
rc->rc_row = rc->rc_col = 0;
|
|
#if !defined(RASTERCONS_FULLSCREEN)
|
|
/* Determine addresses of prom emulator row and column */
|
|
if (!CPU_ISSUN4 && !romgetcursoraddr(&row, &col)) {
|
|
rc->rc_row = *row;
|
|
rc->rc_col = *col;
|
|
}
|
|
#endif
|
|
ri->ri_crow = rc->rc_row;
|
|
ri->ri_ccol = rc->rc_col;
|
|
|
|
rc->rc_ops = &ri->ri_ops;
|
|
rc->rc_cookie = ri;
|
|
rc->rc_bell = fb_bell;
|
|
rc->rc_maxcol = ri->ri_cols;
|
|
rc->rc_maxrow = ri->ri_rows;
|
|
rc->rc_width = ri->ri_emuwidth;
|
|
rc->rc_height = ri->ri_emuheight;
|
|
rc->rc_deffgcolor = WSCOL_BLACK;
|
|
rc->rc_defbgcolor = WSCOL_WHITE;
|
|
rcons_init(rc, 0);
|
|
|
|
/* Hook up virtual console */
|
|
v_putc = rcons_cnputc;
|
|
}
|
|
|
|
int
|
|
fbrcons_rows()
|
|
{
|
|
return (devfb ? devfb->fb_rcons.rc_maxrow : 0);
|
|
}
|
|
|
|
int
|
|
fbrcons_cols()
|
|
{
|
|
return (devfb ? devfb->fb_rcons.rc_maxcol : 0);
|
|
}
|
|
#endif /* RASTERCONSOLE */
|