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

319 lines
8.5 KiB
C

/* $NetBSD: xcfb.c,v 1.20 1996/10/14 01:39:57 mhitch 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.
*
* @(#)xcfb.c 8.1 (Berkeley) 6/10/93
*/
/*
* Mach Operating System
* Copyright (c) 1991,1990,1989 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/*
* 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)";
*/
#include "fb.h"
#include "xcfb.h"
#include "dtop.h"
#if NXCFB > 0
#if NDTOP == 0
xcfb needs dtop device
#else
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/time.h>
#include <sys/kernel.h>
#include <sys/ioctl.h>
#include <sys/file.h>
#include <sys/errno.h>
#include <sys/proc.h>
#include <sys/mman.h>
#include <sys/malloc.h>
#include <vm/vm.h>
#include <sys/device.h>
#include <dev/tc/tcvar.h>
#include <machine/autoconf.h>
#include <mips/cpuregs.h> /* mips cached->uncached */
#include <machine/pmioctl.h>
#include <machine/fbio.h>
#include <machine/fbvar.h>
#include <pmax/pmax/cons.h>
#include <pmax/dev/xcfbreg.h>
#include <pmax/dev/xcfbvar.h>
#include <pmax/dev/ims332.h>
#include <pmax/pmax/maxine.h>
#include <pmax/dev/dtopreg.h>
#include <pmax/dev/fbreg.h>
/*
* These need to be mapped into user space.
*/
struct fbuaccess xcfbu;
/*
* rcons methods and globals.
*/
struct pmax_fbtty xcfbfb;
struct fbinfo xcfbfi; /*XXX*/
extern struct cfdriver cfb_cd;
#define CMAP_BITS (3 * 256) /* 256 entries, 3 bytes per. */
static u_char cmap_bits [CMAP_BITS]; /* colormap for console... */
#define XCFB_FB_SIZE 0x100000 /* size of raster (mapped into userspace) */
struct fbdriver xcfb_driver = {
ims332_video_on,
ims332_video_off,
ims332InitColorMap,
ims332GetColorMap,
ims332LoadColorMap,
ims332PosCursor,
ims332LoadCursor,
ims332CursorColor
};
/*
* Forward references.
*/
extern u_short defCursor[32];
/*
* Autoconfiguration data for config.new.
* Use static-sized softc until config.old and old autoconfig
* code is completely gone.
*/
int xcfbmatch __P((struct device *, void *, void *));
void xcfbattach __P((struct device *, struct device *, void *));
struct cfattach xcfb_ca = {
sizeof(struct device), xcfbmatch, xcfbattach
};
struct cfdriver xcfb_cd = {
NULL, "xcfb", DV_DULL
};
int
xcfbmatch(parent, match, aux)
struct device *parent;
void *match;
void *aux;
{
/*struct cfdata *cf = match;*/
struct tc_attach_args *ta = aux;
/* Make sure that it's an xcfb. */
if (!TC_BUS_MATCHNAME(ta, "PMAG-DV ") &&
strcmp(ta->ta_modname, "xcfb") != 0)
return (0);
return (1);
}
void
xcfbattach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
struct tc_attach_args *ta = aux;
if (!xcfbinit(NULL, (caddr_t)ta->ta_addr, self->dv_unit, 0))
return;
/* no interrupts for XCFB */
/*BUS_INTR_ESTABLISH(ca, xcfbintr, self->dv_unit);*/
printf("\n");
}
/*
* Initialization
*/
int
xcfbinit(fi, base, unit, silent)
struct fbinfo *fi;
caddr_t base;
int unit;
int silent;
{
/*XXX*/
/*
* If this device is being intialized as the console, malloc()
* is not yet up and we must use statically-allocated space.
*/
if (fi == NULL) {
fi = &xcfbfi; /* XXX */
fi->fi_cmap_bits = (caddr_t)cmap_bits;
} else {
fi->fi_cmap_bits = malloc(CMAP_BITS, M_DEVBUF, M_NOWAIT);
if (fi->fi_cmap_bits == NULL) {
printf("cfb%d: no memory for cmap\n", unit);
return (0);
}
}
/*XXX*/
/*
* Or Cached? A comment in the Mach driver suggests that the X server
* runs faster in cached address space, but the X server is going
* to blow away the data cache whenever it updates the screen, so..
*/
base = (char *) MACH_PHYS_TO_UNCACHED(XINE_PHYS_CFB_START);
/* Fill in main frame buffer info struct. */
fi->fi_unit = unit;
fi->fi_pixels = (caddr_t)(base + VRAM_OFFSET);
fi->fi_pixelsize = 1024 * 768;
fi->fi_base = (caddr_t)IMS332_RESET_ADDRESS;
fi->fi_vdac = (caddr_t)IMS332_ADDRESS;
fi->fi_size = 0x100000;
fi->fi_linebytes = 1024;
fi->fi_driver = &xcfb_driver;
fi->fi_blanked = 0;
/* Fill in Frame Buffer Type struct. */
fi->fi_type.fb_boardtype = PMAX_FBTYPE_XCFB;
fi->fi_type.fb_width = 1024;
fi->fi_type.fb_height = 768;
fi->fi_type.fb_depth = 8;
fi->fi_type.fb_cmsize = 256;
fi->fi_type.fb_size = XCFB_FB_SIZE;
/*
* qvss/pm-style mmap()ed event queue compatibility glue
*/
/*
* Must be in Uncached space since the fbuaccess structure is
* mapped into the user's address space uncached.
*/
fi->fi_fbu = (struct fbuaccess *)
MACH_PHYS_TO_UNCACHED(MACH_CACHED_TO_PHYS(&xcfbu));
/* This is glass-tty state but it's in the shared structure. Ick. */
fi->fi_fbu->scrInfo.max_row = 50;
fi->fi_fbu->scrInfo.max_col = 80;
init_pmaxfbu(fi);
/*
* Initialize old-style pmax glass-tty screen info.
*/
fi->fi_glasstty = &xcfbfb;
/*XXX*/
/* dimensions translated -15 pixels, for sprite origin? */
fi->fi_fbu->scrInfo.max_cur_x = 1008;
fi->fi_fbu->scrInfo.max_cur_y = 752;
fi->fi_fbu->scrInfo.min_cur_x = -15;
fi->fi_fbu->scrInfo.min_cur_y = -15;
/* Initialize the RAMDAC. */
ims332init (fi);
/* Connect serial device(s) */
if (tb_kbdmouseconfig(fi)) {
printf(" (mouse/keyboard config failed)");
return (0);
}
/*
* Connect to the raster-console pseudo-driver
*/
fbconnect("PMAG-DV", fi, silent);
#ifdef fpinitialized
fp->initialized = 1;
#endif
return (1);
}
#endif /* NDTOP */
#endif /* NXCFB */