xref: /netbsd-src/sys/arch/mac68k/dev/grf_subr.c (revision 5ddd3f22f64b9dbec28acd5070b5f723bf164a2c)
1 /*	$NetBSD: grf_subr.c,v 1.25 2022/08/09 08:09:44 rin Exp $	*/
2 
3 /*-
4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Jason R. Thorpe.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: grf_subr.c,v 1.25 2022/08/09 08:09:44 rin Exp $");
34 
35 #include <sys/param.h>
36 #include <sys/device.h>
37 #include <sys/systm.h>
38 
39 #include <machine/bus.h>
40 #include <machine/grfioctl.h>
41 
42 #include <mac68k/nubus/nubus.h>
43 #include <mac68k/dev/grfvar.h>
44 
45 void
grf_establish(struct grfbus_softc * sc,nubus_slot * sp,int (* g_mode)(struct grf_softc *,int,void *))46 grf_establish(struct grfbus_softc *sc, nubus_slot *sp,
47     int (*g_mode)(struct grf_softc *, int, void *))
48 {
49 	struct grfmode *gm = &sc->curr_mode;
50 	struct grfbus_attach_args ga;
51 
52 	/* Print hardware characteristics. */
53 	printf("%s: %d x %d, ", device_xname(sc->sc_dev), gm->width, gm->height);
54 	if (gm->psize == 1)
55 		printf("monochrome\n");
56 	else
57 		printf("%hu-bpp color\n", gm->psize);
58 
59 	/* Attach grf semantics to the hardware. */
60 	ga.ga_name = "grf";
61 	ga.ga_grfmode = gm;
62 	ga.ga_slot = sp;
63 	ga.ga_tag = sc->sc_tag;
64 	ga.ga_handle = sc->sc_handle;
65 	ga.ga_phys = sc->sc_basepa;
66 	ga.ga_mode = g_mode;
67 	ga.ga_set_mapreg = sc->sc_set_mapreg;
68 	ga.ga_parent = sc;
69 	(void)config_found(sc->sc_dev, &ga, grfbusprint, CFARGS_NONE);
70 }
71 
72 int
grfbusprint(void * aux,const char * name)73 grfbusprint(void *aux, const char *name)
74 {
75 	struct grfbus_attach_args *ga = aux;
76 
77 	if (name)
78 		aprint_normal("%s at %s", ga->ga_name, name);
79 
80 	return (UNCONF);
81 }
82