368 lines
9.0 KiB
C
368 lines
9.0 KiB
C
/* $NetBSD: fb.c,v 1.2 1999/09/26 10:22:10 takemura Exp $ */
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/*-
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* Copyright (c) 1999
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* Shin Takemura and PocketBSD Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the PocketBSD project
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* and its contributors.
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* 4. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/*
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* Copyright (c) 1995, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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static const char _copyright[] __attribute__ ((unused)) =
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"Copyright (c) 19999 Shin Takemura. All rights reserved.";
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static const char _rcsid[] __attribute__ ((unused)) =
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"$Id: fb.c,v 1.2 1999/09/26 10:22:10 takemura Exp $";
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/conf.h>
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#include <sys/malloc.h>
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#include <sys/buf.h>
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#include <sys/ioctl.h>
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#include <vm/vm.h>
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#include <machine/bus.h>
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#include <machine/autoconf.h>
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#include <machine/bootinfo.h>
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#include <arch/hpcmips/dev/fbvar.h>
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#include <dev/rcons/raster.h>
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#include <dev/wscons/wsconsio.h>
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#include <dev/wscons/wscons_raster.h>
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#include <dev/wscons/wsdisplayvar.h>
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#define FBDEBUG
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#ifdef FBDEBUG
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int fb_debug = 1;
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#define DPRINTF(arg) if (fb_debug) printf arg;
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#else
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#define DPRINTF(arg)
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#endif
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/*
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* function prototypes
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*/
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int fbmatch __P((struct device *, struct cfdata *, void *));
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void fbattach __P((struct device *, struct device *, void *));
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int fbprint __P((void *, const char *));
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int fb_ioctl __P((void *, u_long, caddr_t, int, struct proc *));
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int fb_mmap __P((void *, off_t, int));
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static int fb_getdevconfig __P((struct fb_devconfig *dc));
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static int fb_alloc_screen __P((void *, const struct wsscreen_descr *,
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void **, int *, int *, long *));
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static void fb_free_screen __P((void *, void *));
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static void fb_show_screen __P((void *, void *));
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static int pow __P((int, int));
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/*
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* static variables
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*/
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struct cfattach fb_ca = {
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sizeof(struct fb_softc), fbmatch, fbattach,
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};
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struct wsdisplay_emulops fb_emulops = {
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rcons_cursor,
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rcons_mapchar,
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rcons_putchar,
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rcons_copycols,
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rcons_erasecols,
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rcons_copyrows,
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rcons_eraserows,
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rcons_alloc_attr
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};
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struct wsscreen_descr fb_stdscreen = {
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"std",
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0, 0, /* will be filled in -- XXX shouldn't, it's global */
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&fb_emulops,
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0, 0,
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WSSCREEN_REVERSE
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};
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const struct wsscreen_descr *_fb_scrlist[] = {
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&fb_stdscreen,
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/* XXX other formats, graphics screen? */
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};
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struct wsscreen_list fb_screenlist = {
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sizeof(_fb_scrlist) / sizeof(struct wsscreen_descr *), _fb_scrlist
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};
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struct wsdisplay_accessops fb_accessops = {
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fb_ioctl,
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fb_mmap,
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fb_alloc_screen,
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fb_free_screen,
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fb_show_screen,
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0 /* load_font */
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};
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struct fb_devconfig fb_console_dc;
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/*
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* function bodies
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*/
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static int
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pow(int x, int n)
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{
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int res = 1;
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while (0 < n--) {
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res *= x;
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}
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return (res);
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}
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int
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fbmatch(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct mainbus_attach_args *ma = aux;
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if (strcmp(ma->ma_name, match->cf_driver->cd_name))
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return 0;
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return (1);
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}
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void
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fbattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct fb_softc *sc = (struct fb_softc *)self;
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struct mainbus_attach_args *ma = aux;
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struct wsemuldisplaydev_attach_args wa;
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int console;
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/* avoid warning */
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console = (int)ma->ma_iot;
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console = 0;
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if (console) {
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sc->sc_dc = &fb_console_dc;
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sc->nscreens = 1;
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} else {
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sc->sc_dc = (struct fb_devconfig *)
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malloc(sizeof(struct fb_devconfig), M_DEVBUF, M_WAITOK);
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bzero(sc->sc_dc, sizeof(struct fb_devconfig));
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if (fb_getdevconfig(sc->sc_dc) != 0) {
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return;
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}
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}
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printf(": %dx%d pixels, %d colors, %dx%d chars",
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sc->sc_dc->dc_raster.width,
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sc->sc_dc->dc_raster.height,
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pow(2, sc->sc_dc->dc_raster.depth),
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sc->sc_dc->dc_rcons.rc_maxcol,
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sc->sc_dc->dc_rcons.rc_maxrow);
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printf("\n");
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wa.console = 0;
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wa.scrdata = &fb_screenlist;
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wa.accessops = &fb_accessops;
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wa.accesscookie = sc;
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config_found(self, &wa, wsemuldisplaydevprint);
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}
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int
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fb_getdevconfig(dc)
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struct fb_devconfig *dc;
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{
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int i;
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int depth;
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struct rcons *rcp;
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if (bootinfo == NULL ||
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bootinfo->fb_addr == 0 ||
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bootinfo->fb_line_bytes == 0 ||
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bootinfo->fb_width == 0 ||
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bootinfo->fb_height == 0) {
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printf(": no frame buffer infomation.\n");
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return (-1);
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}
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dc->dc_width = bootinfo->fb_width;
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dc->dc_height = bootinfo->fb_height;
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dc->dc_rowbytes = bootinfo->fb_line_bytes;
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dc->dc_fbaddr = (vaddr_t)bootinfo->fb_addr;
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/* clear the screen */
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for (i = 0;
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i < dc->dc_height * dc->dc_rowbytes;
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i += sizeof(u_int32_t)) {
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*(u_int32_t *)(dc->dc_fbaddr + i) = 0;
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}
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switch (bootinfo->fb_type) {
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case BIFB_D2_M2L_3:
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case BIFB_D2_M2L_3x2:
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case BIFB_D2_M2L_0:
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case BIFB_D2_M2L_0x2:
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depth = 2;
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break;
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case BIFB_D8_00:
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case BIFB_D8_FF:
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depth = 8;
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break;
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case BIFB_D16_0000:
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case BIFB_D16_FFFF:
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depth = 16;
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break;
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default:
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printf(": unknown type (=%d).\n", bootinfo->fb_type);
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return (-1);
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break;
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}
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/* initialize the raster */
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dc->dc_raster.width = dc->dc_width;
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dc->dc_raster.height = dc->dc_height;
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dc->dc_raster.depth = depth;
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dc->dc_raster.linelongs = dc->dc_rowbytes / sizeof(u_int32_t);
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dc->dc_raster.pixels = (u_int32_t *)dc->dc_fbaddr;
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dc->dc_raster.data = (caddr_t)dc;
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/* initialize the raster console blitter */
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rcp = &dc->dc_rcons;
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rcp->rc_sp = &dc->dc_raster;
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rcp->rc_crow = rcp->rc_ccol = -1;
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rcp->rc_crowp = &rcp->rc_crow;
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rcp->rc_ccolp = &rcp->rc_ccol;
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rcons_init(rcp, 34, 80);
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fb_stdscreen.nrows = dc->dc_rcons.rc_maxrow;
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fb_stdscreen.ncols = dc->dc_rcons.rc_maxcol;
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return (0);
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}
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int
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fb_ioctl(v, cmd, data, flag, p)
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void *v;
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u_long cmd;
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caddr_t data;
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int flag;
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struct proc *p;
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{
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DPRINTF(("%s(%d): fb_ioctl()\n", __FILE__, __LINE__));
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return (-1);
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}
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int
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fb_mmap(v, offset, prot)
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void *v;
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off_t offset;
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int prot;
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{
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DPRINTF(("%s(%d): fb_mmap()\n", __FILE__, __LINE__));
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return (-1);
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}
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int
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fb_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
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void *v;
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const struct wsscreen_descr *type;
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void **cookiep;
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int *curxp, *curyp;
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long *attrp;
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{
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struct fb_softc *sc = v;
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long defattr;
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DPRINTF(("%s(%d): fb_alloc_screen()\n", __FILE__, __LINE__));
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if (sc->nscreens > 0)
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return (ENOMEM);
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*cookiep = &sc->sc_dc->dc_rcons; /* one and only for now */
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*curxp = 0;
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*curyp = 0;
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rcons_alloc_attr(&sc->sc_dc->dc_rcons, 0, 0, 0, &defattr);
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*attrp = defattr;
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sc->nscreens++;
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return (0);
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}
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void
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fb_free_screen(v, cookie)
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void *v;
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void *cookie;
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{
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DPRINTF(("%s(%d): fb_free_screen()\n", __FILE__, __LINE__));
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}
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void
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fb_show_screen(v, cookie)
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void *v;
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void *cookie;
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{
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DPRINTF(("%s(%d): fb_show_screen()\n", __FILE__, __LINE__));
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}
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