192 lines
6.5 KiB
C
192 lines
6.5 KiB
C
/* $NetBSD: cgthree_sbus.c,v 1.30 2010/09/14 18:28:18 macallan Exp $ */
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/*-
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* Copyright (c) 1998 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 Paul Kranenburg.
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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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*
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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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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* 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 University of
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* California, Lawrence Berkeley Laboratory.
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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. Neither the name of the University 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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* @(#)cgthree.c 8.2 (Berkeley) 10/30/93
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*/
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/*
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* color display (cgthree) driver.
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*
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* Does not handle interrupts, even though they can occur.
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*
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* XXX should defer colormap updates to vertical retrace interrupts
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: cgthree_sbus.c,v 1.30 2010/09/14 18:28:18 macallan Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/buf.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/tty.h>
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#include <sys/conf.h>
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#include <sys/bus.h>
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#include <machine/autoconf.h>
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#include <dev/sun/fbio.h>
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#include <dev/sun/fbvar.h>
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#include <dev/sun/btreg.h>
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#include <dev/sun/btvar.h>
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#include <dev/sun/cgthreereg.h>
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#include <dev/sun/cgthreevar.h>
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#include <dev/sbus/sbusvar.h>
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/* autoconfiguration driver */
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static int cgthreematch_sbus(device_t, cfdata_t, void *);
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static void cgthreeattach_sbus(device_t, device_t, void *);
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CFATTACH_DECL_NEW(cgthree_sbus, sizeof(struct cgthree_softc),
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cgthreematch_sbus, cgthreeattach_sbus, NULL, NULL);
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/*
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* Match a cgthree.
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*/
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int
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cgthreematch_sbus(device_t parent, cfdata_t cf, void *aux)
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{
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struct sbus_attach_args *sa = aux;
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if (strcmp(cf->cf_name, sa->sa_name) == 0)
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return 100; /* beat genfb(4) */
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return 0;
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}
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/*
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* Attach a display. We need to notice if it is the console, too.
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*/
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void
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cgthreeattach_sbus(device_t parent, device_t self, void *args)
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{
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struct cgthree_softc *sc = device_private(self);
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struct sbus_attach_args *sa = args;
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struct fbdevice *fb = &sc->sc_fb;
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int node = sa->sa_node;
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int isconsole;
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const char *name;
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bus_space_handle_t bh;
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sc->sc_dev = self;
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/* Remember cookies for cgthree_mmap() */
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sc->sc_bustag = sa->sa_bustag;
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sc->sc_paddr = sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset);
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fb->fb_device = self;
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fb->fb_flags = device_cfdata(self)->cf_flags & FB_USERMASK;
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fb->fb_type.fb_type = FBTYPE_SUN3COLOR;
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fb->fb_type.fb_depth = 8;
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fb_setsize_obp(fb, fb->fb_type.fb_depth, 1152, 900, node);
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/*
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* When the ROM has mapped in a cgthree display, the address
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* maps only the video RAM, so in any case we have to map the
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* registers ourselves.
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*/
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if (sbus_bus_map(sa->sa_bustag,
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sa->sa_slot,
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sa->sa_offset + CG3REG_REG,
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sizeof(struct fbcontrol),
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BUS_SPACE_MAP_LINEAR, &bh) != 0) {
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aprint_error_dev(self, "cannot map control registers\n");
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return;
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}
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sc->sc_fbc = (struct fbcontrol *)bus_space_vaddr(sa->sa_bustag, bh);
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isconsole = fb_is_console(node);
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name = prom_getpropstring(node, "model");
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if (name == NULL)
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name = "cgthree";
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if (sa->sa_npromvaddrs != 0)
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fb->fb_pixels = (void *)(u_long)sa->sa_promvaddrs[0];
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if (fb->fb_pixels == NULL) {
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int ramsize = fb->fb_type.fb_height * fb->fb_linebytes;
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if (sbus_bus_map(sa->sa_bustag,
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sa->sa_slot,
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sa->sa_offset + CG3REG_MEM,
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ramsize,
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BUS_SPACE_MAP_LINEAR, &bh) != 0) {
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aprint_error_dev(self, "cannot map pixels\n");
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return;
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}
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fb->fb_pixels = (char *)bus_space_vaddr(sa->sa_bustag, bh);
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}
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cgthreeattach(sc, name, isconsole);
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}
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