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/* $OpenBSD: fb.c,v 1.8 2005/03/15 18:40:15 miod Exp $ */
/* $NetBSD: fb.c,v 1.23 1997/07/07 23:30:22 pk Exp $ */
/*
* Copyright (c) 2002, 2004 Miodrag Vallat.
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
*
* 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. 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
*/
/*
* Common wsdisplay framebuffer drivers helpers.
*/
#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/conf.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/rasops/rasops.h>
#include <machine/fbvar.h>
#include "wsdisplay.h"
/*
* emergency unblank code
* XXX should be somewhat moved to wscons MI code
*/
void (*fb_burner)(void *, u_int, u_int);
void *fb_cookie;
void
fb_unblank()
{
if (fb_burner != NULL)
(*fb_burner)(fb_cookie, 1, 0);
}
#if NWSDISPLAY > 0
static int a2int(char *, int);
static void fb_initwsd(struct sunfb *);
static void fb_updatecursor(struct rasops_info *);
void
fb_setsize(struct sunfb *sf, int def_depth, int def_width, int def_height,
int node, int unused)
{
int def_linebytes;
sf->sf_depth = getpropint(node, "depth", def_depth);
sf->sf_width = getpropint(node, "width", def_width);
sf->sf_height = getpropint(node, "height", def_height);
def_linebytes =
roundup(sf->sf_width, sf->sf_depth) * sf->sf_depth / 8;
sf->sf_linebytes = getpropint(node, "linebytes", def_linebytes);
/*
* XXX If we are configuring a board in a wider depth level
* than the mode it is currently operating in, the PROM will
* return a linebytes property tied to the current depth value,
* which is NOT what we are relying upon!
*/
if (sf->sf_linebytes < (sf->sf_width * sf->sf_depth) / 8) {
sf->sf_linebytes = def_linebytes;
}
sf->sf_fbsize = sf->sf_height * sf->sf_linebytes;
}
static int
a2int(char *cp, int deflt)
{
int i = 0;
if (*cp == '\0')
return (deflt);
while (*cp != '\0')
i = i * 10 + *cp++ - '0';
return (i);
}
/* setup the embedded wsscreen_descr structure from rasops settings */
static void
fb_initwsd(struct sunfb *sf)
{
strlcpy(sf->sf_wsd.name, "std", sizeof(sf->sf_wsd.name));
sf->sf_wsd.capabilities = sf->sf_ro.ri_caps;
sf->sf_wsd.nrows = sf->sf_ro.ri_rows;
sf->sf_wsd.ncols = sf->sf_ro.ri_cols;
sf->sf_wsd.textops = &sf->sf_ro.ri_ops;
}
static void
fb_updatecursor(struct rasops_info *ri)
{
struct sunfb *sf = (struct sunfb *)ri->ri_hw;
if (sf->sf_crowp != NULL)
*sf->sf_crowp = ri->ri_crow;
if (sf->sf_ccolp != NULL)
*sf->sf_ccolp = ri->ri_ccol;
}
void
fbwscons_init(struct sunfb *sf, int flags)
{
int cols, rows;
/* ri_hw and ri_bits must have already been setup by caller */
sf->sf_ro.ri_flg = RI_CENTER | RI_FULLCLEAR | flags;
sf->sf_ro.ri_depth = sf->sf_depth;
sf->sf_ro.ri_stride = sf->sf_linebytes;
sf->sf_ro.ri_width = sf->sf_width;
sf->sf_ro.ri_height = sf->sf_height;
rows = a2int(getpropstring(optionsnode, "screen-#rows"), 34);
cols = a2int(getpropstring(optionsnode, "screen-#columns"), 80);
rasops_init(&sf->sf_ro, rows, cols);
}
void
fbwscons_console_init(struct sunfb *sf, int row)
{
long defattr;
if (romgetcursoraddr(&sf->sf_crowp, &sf->sf_ccolp))
sf->sf_ccolp = sf->sf_crowp = NULL;
if (sf->sf_ccolp != NULL)
sf->sf_ro.ri_ccol = *sf->sf_ccolp;
if (row < 0) {
if (sf->sf_crowp != NULL)
sf->sf_ro.ri_crow = *sf->sf_crowp;
else
/* assume last row */
sf->sf_ro.ri_crow = sf->sf_ro.ri_rows - 1;
} else {
/*
* If we force the display row, this is because the screen
* has been cleared or the font has been changed.
* In this case, choose not to keep pointers to the PROM
* cursor position, as the values are likely to be inaccurate
* upon shutdown...
*/
sf->sf_crowp = sf->sf_ccolp = NULL;
sf->sf_ro.ri_crow = row;
}
/*
* Scale back rows and columns if the font would not otherwise
* fit on this display. Without this we would panic later.
*/
if (sf->sf_ro.ri_crow >= sf->sf_ro.ri_rows)
sf->sf_ro.ri_crow = sf->sf_ro.ri_rows - 1;
if (sf->sf_ro.ri_ccol >= sf->sf_ro.ri_cols)
sf->sf_ro.ri_ccol = sf->sf_ro.ri_cols - 1;
/*
* Take care of updating the PROM cursor position as weel if we can.
*/
if (sf->sf_ro.ri_updatecursor != NULL &&
(sf->sf_ccolp != NULL || sf->sf_crowp != NULL))
sf->sf_ro.ri_updatecursor = fb_updatecursor;
/*
* Select appropriate color settings to mimic a
* black on white Sun console.
*/
if (sf->sf_depth > 8) {
wscol_white = 0;
wscol_black = 255;
wskernel_bg = 0;
wskernel_fg = 255;
}
if (ISSET(sf->sf_ro.ri_caps, WSSCREEN_WSCOLORS) &&
sf->sf_depth == 8) {
sf->sf_ro.ri_ops.alloc_attr(&sf->sf_ro,
WSCOL_BLACK, WSCOL_WHITE, WSATTR_WSCOLORS, &defattr);
} else {
sf->sf_ro.ri_ops.alloc_attr(&sf->sf_ro, 0, 0, 0, &defattr);
}
fb_initwsd(sf);
wsdisplay_cnattach(&sf->sf_wsd, &sf->sf_ro,
sf->sf_ro.ri_ccol, sf->sf_ro.ri_crow, defattr);
}
void
fbwscons_setcolormap(struct sunfb *sf,
void (*setcolor)(void *, u_int, u_int8_t, u_int8_t, u_int8_t))
{
int i;
u_char *color;
if (sf->sf_depth <= 8 && setcolor != NULL) {
for (i = 0; i < 16; i++) {
color = (u_char *)&rasops_cmap[i * 3];
setcolor(sf, i, color[0], color[1], color[2]);
}
for (i = 240; i < 256; i++) {
color = (u_char *)&rasops_cmap[i * 3];
setcolor(sf, i, color[0], color[1], color[2]);
}
/* compensate for BoW palette */
setcolor(sf, WSCOL_BLACK, 0, 0, 0);
setcolor(sf, 0xff ^ WSCOL_BLACK, 255, 255, 255);
setcolor(sf, WSCOL_WHITE, 255, 255, 255);
setcolor(sf, 0xff ^ WSCOL_WHITE, 0, 0, 0);
}
}
void
fbwscons_attach(struct sunfb *sf, struct wsdisplay_accessops *op, int isconsole)
{
struct wsemuldisplaydev_attach_args waa;
struct wsscreen_descr *scrlist[1];
struct wsscreen_list screenlist;
if (isconsole == 0) {
/* done in wsdisplay_cnattach() earlier if console */
fb_initwsd(sf);
} else {
/* remember screen burner routine */
fb_burner = op->burn_screen;
fb_cookie = sf;
}
scrlist[0] = &sf->sf_wsd;
screenlist.nscreens = 1;
screenlist.screens = (const struct wsscreen_descr **)scrlist;
waa.console = isconsole;
waa.scrdata = &screenlist;
waa.accessops = op;
waa.accesscookie = sf;
config_found(&sf->sf_dev, &waa, wsemuldisplaydevprint);
}
#endif /* NWSDISPLAY */
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