1 /* $NetBSD: cgthree_sbus.c,v 1.32 2022/09/25 18:03:04 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Paul Kranenburg.
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 /*
33 * Copyright (c) 1992, 1993
34 * The Regents of the University of California. All rights reserved.
35 *
36 * This software was developed by the Computer Systems Engineering group
37 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
38 * contributed to Berkeley.
39 *
40 * All advertising materials mentioning features or use of this software
41 * must display the following acknowledgement:
42 * This product includes software developed by the University of
43 * California, Lawrence Berkeley Laboratory.
44 *
45 * Redistribution and use in source and binary forms, with or without
46 * modification, are permitted provided that the following conditions
47 * are met:
48 * 1. Redistributions of source code must retain the above copyright
49 * notice, this list of conditions and the following disclaimer.
50 * 2. Redistributions in binary form must reproduce the above copyright
51 * notice, this list of conditions and the following disclaimer in the
52 * documentation and/or other materials provided with the distribution.
53 * 3. Neither the name of the University nor the names of its contributors
54 * may be used to endorse or promote products derived from this software
55 * without specific prior written permission.
56 *
57 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
58 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
59 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
60 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
61 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
62 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
63 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
64 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
65 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
66 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
67 * SUCH DAMAGE.
68 *
69 * @(#)cgthree.c 8.2 (Berkeley) 10/30/93
70 */
71
72 /*
73 * color display (cgthree) driver.
74 *
75 * Does not handle interrupts, even though they can occur.
76 *
77 * XXX should defer colormap updates to vertical retrace interrupts
78 */
79
80 #include <sys/cdefs.h>
81 __KERNEL_RCSID(0, "$NetBSD: cgthree_sbus.c,v 1.32 2022/09/25 18:03:04 thorpej Exp $");
82
83 #include <sys/param.h>
84 #include <sys/systm.h>
85 #include <sys/buf.h>
86 #include <sys/device.h>
87 #include <sys/ioctl.h>
88 #include <sys/mman.h>
89 #include <sys/tty.h>
90 #include <sys/conf.h>
91
92 #include <sys/bus.h>
93 #include <machine/autoconf.h>
94
95 #include <dev/sun/fbio.h>
96 #include <dev/sun/fbvar.h>
97
98 #include <dev/sun/btreg.h>
99 #include <dev/sun/btvar.h>
100 #include <dev/sun/cgthreereg.h>
101 #include <dev/sun/cgthreevar.h>
102
103 #include <dev/sbus/sbusvar.h>
104
105
106 /* autoconfiguration driver */
107 static int cgthreematch_sbus(device_t, cfdata_t, void *);
108 static void cgthreeattach_sbus(device_t, device_t, void *);
109
110 CFATTACH_DECL_NEW(cgthree_sbus, sizeof(struct cgthree_softc),
111 cgthreematch_sbus, cgthreeattach_sbus, NULL, NULL);
112
113 /*
114 * Match a cgthree.
115 */
116 int
cgthreematch_sbus(device_t parent,cfdata_t cf,void * aux)117 cgthreematch_sbus(device_t parent, cfdata_t cf, void *aux)
118 {
119 struct sbus_attach_args *sa = aux;
120
121 if (strcmp(cf->cf_name, sa->sa_name) == 0)
122 return 100; /* beat genfb(4) */
123
124 return 0;
125 }
126
127 /*
128 * Attach a display. We need to notice if it is the console, too.
129 */
130 void
cgthreeattach_sbus(device_t parent,device_t self,void * args)131 cgthreeattach_sbus(device_t parent, device_t self, void *args)
132 {
133 struct cgthree_softc *sc = device_private(self);
134 struct sbus_attach_args *sa = args;
135 struct fbdevice *fb = &sc->sc_fb;
136 int node = sa->sa_node;
137 int isconsole;
138 const char *name;
139 bus_space_handle_t bh;
140
141 sc->sc_dev = self;
142
143 /* Remember cookies for cgthree_mmap() */
144 sc->sc_bustag = sa->sa_bustag;
145 sc->sc_paddr = sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset);
146
147 fb->fb_device = self;
148 fb->fb_flags = device_cfdata(self)->cf_flags & FB_USERMASK;
149 fb->fb_type.fb_type = FBTYPE_SUN3COLOR;
150
151 fb->fb_type.fb_depth = 8;
152 fb_setsize_obp(fb, fb->fb_type.fb_depth, 1152, 900, node);
153
154 /*
155 * When the ROM has mapped in a cgthree display, the address
156 * maps only the video RAM, so in any case we have to map the
157 * registers ourselves.
158 */
159 if (sbus_bus_map(sa->sa_bustag,
160 sa->sa_slot,
161 sa->sa_offset + CG3REG_REG,
162 sizeof(struct fbcontrol),
163 BUS_SPACE_MAP_LINEAR, &bh) != 0) {
164 aprint_error_dev(self, "cannot map control registers\n");
165 return;
166 }
167 sc->sc_fbc = (struct fbcontrol *)bus_space_vaddr(sa->sa_bustag, bh);
168
169 isconsole = fb_is_console(node);
170 name = prom_getpropstring(node, "model");
171 if (name == NULL)
172 name = "cgthree";
173
174 fb->fb_pixels = NULL;
175 if (sa->sa_npromvaddrs != 0)
176 fb->fb_pixels = (void *)(u_long)sa->sa_promvaddrs[0];
177 if (fb->fb_pixels == NULL) {
178 int ramsize = fb->fb_type.fb_height * fb->fb_linebytes;
179 if (sbus_bus_map(sa->sa_bustag,
180 sa->sa_slot,
181 sa->sa_offset + CG3REG_MEM,
182 ramsize,
183 BUS_SPACE_MAP_LINEAR, &bh) != 0) {
184 aprint_error_dev(self, "cannot map pixels\n");
185 return;
186 }
187 fb->fb_pixels = (char *)bus_space_vaddr(sa->sa_bustag, bh);
188 }
189
190 cgthreeattach(sc, name, isconsole);
191 }
192