508 lines
13 KiB
C
508 lines
13 KiB
C
/* $NetBSD: lunafb.c,v 1.15 2007/03/04 06:00:03 christos Exp $ */
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/*-
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* Copyright (c) 2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Tohru Nishimura.
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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 NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
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__KERNEL_RCSID(0, "$NetBSD: lunafb.c,v 1.15 2007/03/04 06:00:03 christos Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/conf.h>
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#include <sys/device.h>
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#include <sys/ioctl.h>
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#include <sys/malloc.h>
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#include <sys/mman.h>
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#include <sys/proc.h>
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#include <sys/tty.h>
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#include <sys/errno.h>
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#include <sys/buf.h>
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#include <uvm/uvm_extern.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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#include <machine/cpu.h>
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#include <machine/autoconf.h>
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struct bt454 {
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u_int8_t bt_addr; /* map address register */
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u_int8_t bt_cmap; /* colormap data register */
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};
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struct bt458 {
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u_int8_t bt_addr; /* map address register */
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unsigned :24;
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u_int8_t bt_cmap; /* colormap data register */
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unsigned :24;
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u_int8_t bt_ctrl; /* control register */
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unsigned :24;
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u_int8_t bt_omap; /* overlay (cursor) map register */
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unsigned :24;
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};
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#define OMFB_RFCNT 0xB1000000 /* video h-origin/v-origin */
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#define OMFB_PLANEMASK 0xB1040000 /* planemask register */
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#define OMFB_FB_WADDR 0xB1080008 /* common plane */
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#define OMFB_FB_RADDR 0xB10C0008 /* plane #0 */
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#define OMFB_ROPFUNC 0xB12C0000 /* ROP function code */
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#define OMFB_RAMDAC 0xC1100000 /* Bt454/Bt458 RAMDAC */
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#define OMFB_SIZE (0xB1300000 - 0xB1080000 + PAGE_SIZE)
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struct om_hwdevconfig {
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int dc_wid; /* width of frame buffer */
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int dc_ht; /* height of frame buffer */
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int dc_depth; /* depth, bits per pixel */
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int dc_rowbytes; /* bytes in a FB scan line */
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int dc_cmsize; /* colormap size */
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vaddr_t dc_videobase; /* base of flat frame buffer */
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struct raster dc_raster; /* raster description */
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struct rcons dc_rcons; /* raster blitter control info */
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};
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struct hwcmap {
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#define CMAP_SIZE 256
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u_int8_t r[CMAP_SIZE];
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u_int8_t g[CMAP_SIZE];
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u_int8_t b[CMAP_SIZE];
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};
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struct omfb_softc {
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struct device sc_dev; /* base device */
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struct om_hwdevconfig *sc_dc; /* device configuration */
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struct hwcmap sc_cmap; /* software copy of colormap */
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int nscreens;
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};
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static int omgetcmap __P((struct omfb_softc *, struct wsdisplay_cmap *));
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static int omsetcmap __P((struct omfb_softc *, struct wsdisplay_cmap *));
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static struct om_hwdevconfig omfb_console_dc;
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static void omfb_getdevconfig __P((paddr_t, struct om_hwdevconfig *));
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extern struct wsdisplay_emulops omfb_emulops;
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static struct wsscreen_descr omfb_stdscreen = {
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"std", 0, 0,
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&omfb_emulops,
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0, 0,
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0
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};
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static const struct wsscreen_descr *_omfb_scrlist[] = {
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&omfb_stdscreen,
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};
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static const struct wsscreen_list omfb_screenlist = {
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sizeof(_omfb_scrlist) / sizeof(struct wsscreen_descr *), _omfb_scrlist
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};
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static int omfbioctl __P((void *, void *, u_long, void *, int,
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struct lwp *));
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static paddr_t omfbmmap __P((void *, void *, off_t, int));
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static int omfb_alloc_screen __P((void *, const struct wsscreen_descr *,
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void **, int *, int *, long *));
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static void omfb_free_screen __P((void *, void *));
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static int omfb_show_screen __P((void *, void *, int,
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void (*) (void *, int, int), void *));
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static const struct wsdisplay_accessops omfb_accessops = {
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omfbioctl,
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omfbmmap,
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omfb_alloc_screen,
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omfb_free_screen,
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omfb_show_screen,
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0 /* load_font */
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};
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static int omfbmatch __P((struct device *, struct cfdata *, void *));
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static void omfbattach __P((struct device *, struct device *, void *));
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CFATTACH_DECL(fb, sizeof(struct omfb_softc),
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omfbmatch, omfbattach, NULL, NULL);
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extern struct cfdriver fb_cd;
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extern int hwplanemask; /* hardware planemask; retrieved at boot */
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static int omfb_console;
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int omfb_cnattach __P((void));
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static int
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omfbmatch(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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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, fb_cd.cd_name))
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return (0);
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#if 0 /* XXX badaddr() bombs if no framebuffer is installed */
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if (badaddr((void *)ma->ma_addr, 4))
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return (0);
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#else
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if (hwplanemask == 0)
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return (0);
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#endif
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return (1);
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}
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static void
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omfbattach(parent, self, args)
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struct device *parent, *self;
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void *args;
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{
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struct omfb_softc *sc = (struct omfb_softc *)self;
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struct wsemuldisplaydev_attach_args waa;
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if (omfb_console) {
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sc->sc_dc = &omfb_console_dc;
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sc->nscreens = 1;
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}
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else {
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sc->sc_dc = (struct om_hwdevconfig *)
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malloc(sizeof(struct om_hwdevconfig), M_DEVBUF, M_WAITOK);
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omfb_getdevconfig(OMFB_FB_WADDR, sc->sc_dc);
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}
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printf(": %d x %d, %dbpp\n", sc->sc_dc->dc_wid, sc->sc_dc->dc_ht,
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sc->sc_dc->dc_depth);
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#if 0 /* WHITE on BLACK */
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cm = &sc->sc_cmap;
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memset(cm, 255, sizeof(struct hwcmap));
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cm->r[0] = cm->g[0] = cm->b[0] = 0;
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#endif
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waa.console = omfb_console;
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waa.scrdata = &omfb_screenlist;
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waa.accessops = &omfb_accessops;
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waa.accesscookie = sc;
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config_found(self, &waa, wsemuldisplaydevprint);
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}
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/* EXPORT */ int
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omfb_cnattach()
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{
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struct om_hwdevconfig *dc = &omfb_console_dc;
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long defattr;
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omfb_getdevconfig(OMFB_FB_WADDR, dc);
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(*omfb_emulops.allocattr)(&dc->dc_rcons, 0, 0, 0, &defattr);
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wsdisplay_cnattach(&omfb_stdscreen, &dc->dc_rcons, 0, 0, defattr);
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omfb_console = 1;
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return (0);
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}
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static int
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omfbioctl(v, vs, cmd, data, flag, l)
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void *v;
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void *vs;
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u_long cmd;
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void *data;
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int flag;
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struct lwp *l;
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{
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struct omfb_softc *sc = v;
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struct om_hwdevconfig *dc = sc->sc_dc;
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switch (cmd) {
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case WSDISPLAYIO_GTYPE:
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*(u_int *)data = 0x19990927;
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return (0);
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case WSDISPLAYIO_GINFO:
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#define wsd_fbip ((struct wsdisplay_fbinfo *)data)
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wsd_fbip->height = dc->dc_ht;
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wsd_fbip->width = dc->dc_wid;
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wsd_fbip->depth = dc->dc_depth;
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wsd_fbip->cmsize = dc->dc_cmsize;
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#undef fbt
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return (0);
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case WSDISPLAYIO_GETCMAP:
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return omgetcmap(sc, (struct wsdisplay_cmap *)data);
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case WSDISPLAYIO_PUTCMAP:
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return omsetcmap(sc, (struct wsdisplay_cmap *)data);
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case WSDISPLAYIO_SVIDEO:
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case WSDISPLAYIO_GVIDEO:
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case WSDISPLAYIO_GCURPOS:
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case WSDISPLAYIO_SCURPOS:
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case WSDISPLAYIO_GCURMAX:
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case WSDISPLAYIO_GCURSOR:
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case WSDISPLAYIO_SCURSOR:
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break;
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}
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return (EPASSTHROUGH);
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}
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/*
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* Return the address that would map the given device at the given
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* offset, allowing for the given protection, or return -1 for error.
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*/
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static paddr_t
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omfbmmap(v, vs, offset, prot)
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void *v;
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void *vs;
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off_t offset;
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int prot;
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{
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struct omfb_softc *sc = v;
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if (offset >= OMFB_SIZE || offset < 0)
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return (-1);
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return m68k_btop(m68k_trunc_page(sc->sc_dc->dc_videobase) + offset);
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}
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static int
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omgetcmap(sc, p)
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struct omfb_softc *sc;
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struct wsdisplay_cmap *p;
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{
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u_int index = p->index, count = p->count;
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int cmsize, error;
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cmsize = sc->sc_dc->dc_cmsize;
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if (index >= cmsize || count > cmsize - index)
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return (EINVAL);
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error = copyout(&sc->sc_cmap.r[index], p->red, count);
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if (error)
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return error;
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error = copyout(&sc->sc_cmap.g[index], p->green, count);
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if (error)
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return error;
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error = copyout(&sc->sc_cmap.b[index], p->blue, count);
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return error;
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}
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static int
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omsetcmap(sc, p)
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struct omfb_softc *sc;
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struct wsdisplay_cmap *p;
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{
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struct hwcmap cmap;
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u_int index = p->index, count = p->count;
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int cmsize, i, error;
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cmsize = sc->sc_dc->dc_cmsize;
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if (index >= cmsize || (index + count) > cmsize)
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return (EINVAL);
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error = copyin(p->red, &cmap.r[index], count);
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if (error)
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return error;
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error = copyin(p->green, &cmap.g[index], count);
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if (error)
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return error;
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error = copyin(p->blue, &cmap.b[index], count);
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if (error)
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return error;
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memcpy(&sc->sc_cmap.r[index], &cmap.r[index], count);
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memcpy(&sc->sc_cmap.g[index], &cmap.g[index], count);
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memcpy(&sc->sc_cmap.b[index], &cmap.b[index], count);
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if (hwplanemask == 0x0f) {
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struct bt454 *odac = (struct bt454 *)OMFB_RAMDAC;
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odac->bt_addr = index;
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for (i = index; i < count; i++) {
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odac->bt_cmap = sc->sc_cmap.r[i];
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odac->bt_cmap = sc->sc_cmap.g[i];
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odac->bt_cmap = sc->sc_cmap.b[i];
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}
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}
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else if (hwplanemask == 0xff) {
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struct bt458 *ndac = (struct bt458 *)OMFB_RAMDAC;
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ndac->bt_addr = index;
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for (i = index; i < count; i++) {
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ndac->bt_cmap = sc->sc_cmap.r[i];
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ndac->bt_cmap = sc->sc_cmap.g[i];
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ndac->bt_cmap = sc->sc_cmap.b[i];
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}
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}
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return (0);
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}
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static void
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omfb_getdevconfig(paddr, dc)
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paddr_t paddr;
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struct om_hwdevconfig *dc;
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{
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int bpp, i;
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struct raster *rap;
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struct rcons *rcp;
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union {
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struct { short h, v; } p;
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u_int32_t u;
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} rfcnt;
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switch (hwplanemask) {
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case 0xff:
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bpp = 8; /* XXX check monochrome bit in DIPSW */
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break;
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default:
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case 0x0f:
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bpp = 4; /* XXX check monochrome bit in DIPSW */
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break;
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case 1:
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bpp = 1;
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break;
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}
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dc->dc_wid = 1280;
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dc->dc_ht = 1024;
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dc->dc_depth = bpp;
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dc->dc_rowbytes = 2048 / 8;
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dc->dc_cmsize = (bpp == 1) ? 0 : 1 << bpp;
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dc->dc_videobase = paddr;
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#if 0 /* WHITE on BLACK XXX experiment resulted in WHITE on SKYBLUE... */
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if (hwplanemask == 0x0f) {
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/* XXX Need Bt454 initialization */
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struct bt454 *odac = (struct bt454 *)OMFB_RAMDAC;
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odac->bt_addr = 0;
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odac->bt_cmap = 0;
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odac->bt_cmap = 0;
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odac->bt_cmap = 0;
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for (i = 1; i < 16; i++) {
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odac->bt_cmap = 255;
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odac->bt_cmap = 255;
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odac->bt_cmap = 255;
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}
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}
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else if (hwplanemask == 0xff) {
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struct bt458 *ndac = (struct bt458 *)OMFB_RAMDAC;
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ndac->bt_addr = 0x04;
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ndac->bt_ctrl = 0xff; /* all planes will be read */
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ndac->bt_ctrl = 0x00; /* all planes have non-blink */
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ndac->bt_ctrl = 0x43; /* pallete enabled, ovly plane */
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ndac->bt_ctrl = 0x00; /* no test mode */
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ndac->bt_addr = 0;
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ndac->bt_cmap = 0;
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ndac->bt_cmap = 0;
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ndac->bt_cmap = 0;
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for (i = 1; i < 256; i++) {
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ndac->bt_cmap = 255;
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ndac->bt_cmap = 255;
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ndac->bt_cmap = 255;
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}
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}
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#endif
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/* adjust h/v orgin on screen */
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rfcnt.p.h = 7;
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rfcnt.p.v = -27;
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*(u_int32_t *)OMFB_RFCNT = rfcnt.u; /* single write of 0x007ffe6 */
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/* clear the screen */
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*(u_int32_t *)OMFB_PLANEMASK = 0xff;
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((u_int32_t *)OMFB_ROPFUNC)[5] = ~0; /* ROP copy */
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for (i = 0; i < dc->dc_ht * dc->dc_rowbytes/sizeof(u_int32_t); i++)
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*((u_int32_t *)dc->dc_videobase + i) = 0;
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*(u_int32_t *)OMFB_PLANEMASK = 0x01;
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/* initialize the raster */
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rap = &dc->dc_raster;
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rap->width = dc->dc_wid;
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rap->height = dc->dc_ht;
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rap->depth = dc->dc_depth;
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rap->linelongs = dc->dc_rowbytes / sizeof(u_int32_t);
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rap->pixels = (u_int32_t *)dc->dc_videobase;
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/* initialize the raster console blitter */
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rcp = &dc->dc_rcons;
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rcp->rc_sp = rap;
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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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omfb_stdscreen.nrows = dc->dc_rcons.rc_maxrow;
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omfb_stdscreen.ncols = dc->dc_rcons.rc_maxcol;
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}
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static int
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omfb_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 omfb_softc *sc = v;
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long defattr;
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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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(*omfb_emulops.allocattr)(&sc->sc_dc->dc_rcons, 0, 0, 0, &defattr);
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*attrp = defattr;
|
|
sc->nscreens++;
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
omfb_free_screen(v, cookie)
|
|
void *v;
|
|
void *cookie;
|
|
{
|
|
struct omfb_softc *sc = v;
|
|
|
|
if (sc->sc_dc == &omfb_console_dc)
|
|
panic("omfb_free_screen: console");
|
|
|
|
sc->nscreens--;
|
|
}
|
|
|
|
static int
|
|
omfb_show_screen(v, cookie, waitok, cb, cbarg)
|
|
void *v;
|
|
void *cookie;
|
|
int waitok;
|
|
void (*cb) __P((void *, int, int));
|
|
void *cbarg;
|
|
{
|
|
return 0;
|
|
}
|