1 /* $NetBSD: cgsix_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 * color display (cgsix) driver; Sbus bus front-end.
34 */
35
36 #include <sys/cdefs.h>
37 __KERNEL_RCSID(0, "$NetBSD: cgsix_sbus.c,v 1.32 2022/09/25 18:03:04 thorpej Exp $");
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/buf.h>
42 #include <sys/device.h>
43 #include <sys/ioctl.h>
44 #include <sys/mman.h>
45 #include <sys/tty.h>
46 #include <sys/conf.h>
47
48 #ifdef DEBUG
49 #include <sys/proc.h>
50 #include <sys/syslog.h>
51 #endif
52
53 #include <sys/bus.h>
54 #include <machine/autoconf.h>
55
56 #include <dev/sbus/sbusvar.h>
57
58 #include <dev/sun/fbio.h>
59 #include <dev/sun/fbvar.h>
60 #include <dev/sun/btreg.h>
61 #include <dev/sun/btvar.h>
62 #include <dev/sun/cgsixreg.h>
63 #include <dev/sun/cgsixvar.h>
64
65 /* autoconfiguration driver */
66 static int cgsixmatch(device_t, cfdata_t, void *);
67 static void cgsixattach(device_t, device_t, void *);
68
69 CFATTACH_DECL_NEW(cgsix_sbus, sizeof(struct cgsix_softc),
70 cgsixmatch, cgsixattach, NULL, NULL);
71
72 /*
73 * Match a cgsix.
74 */
75 int
cgsixmatch(device_t parent,cfdata_t cf,void * aux)76 cgsixmatch(device_t parent, cfdata_t cf, void *aux)
77 {
78 struct sbus_attach_args *sa = aux;
79
80 return (strcmp(cf->cf_name, sa->sa_name) == 0) ? 100 : 0;
81 }
82
83
84 /*
85 * Attach a cgsix.
86 */
87 void
cgsixattach(device_t parent,device_t self,void * aux)88 cgsixattach(device_t parent, device_t self, void *aux)
89 {
90 struct cgsix_softc *sc = device_private(self);
91 struct sbus_attach_args *sa = aux;
92 struct fbdevice *fb = &sc->sc_fb;
93 int node, isconsole;
94 const char *name;
95 bus_space_handle_t bh;
96
97 /* Remember cookies for cgsix_mmap() */
98 sc->sc_bustag = sa->sa_bustag;
99 sc->sc_paddr = sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset);
100 sc->sc_dev = self;
101
102 node = sa->sa_node;
103
104 fb->fb_device = sc->sc_dev;
105 fb->fb_type.fb_type = FBTYPE_SUNFAST_COLOR;
106 fb->fb_flags = device_cfdata(sc->sc_dev)->cf_flags & FB_USERMASK;
107 fb->fb_type.fb_depth = 8;
108
109 fb_setsize_obp(fb, fb->fb_type.fb_depth, 1152, 900, node);
110
111 /*
112 * Dunno what the PROM has mapped, though obviously it must have
113 * the video RAM mapped. Just map what we care about for ourselves
114 * (the FHC, THC, and Brooktree registers).
115 */
116 if (sbus_bus_map(sa->sa_bustag,
117 sa->sa_slot,
118 sa->sa_offset + CGSIX_BT_OFFSET,
119 sizeof(*sc->sc_bt),
120 BUS_SPACE_MAP_LINEAR, &bh) != 0) {
121 aprint_error_dev(self, "cannot map brooktree registers\n");
122 return;
123 }
124 sc->sc_bt = (struct bt_regs *)bus_space_vaddr(sa->sa_bustag, bh);
125
126 if (sbus_bus_map(sa->sa_bustag,
127 sa->sa_slot,
128 sa->sa_offset + CGSIX_FHC_OFFSET,
129 sizeof(*sc->sc_fhc),
130 BUS_SPACE_MAP_LINEAR, &bh) != 0) {
131 aprint_error_dev(self, "cannot map FHC registers\n");
132 return;
133 }
134 sc->sc_fhc = (int *)bus_space_vaddr(sa->sa_bustag, bh);
135
136 if (sbus_bus_map(sa->sa_bustag,
137 sa->sa_slot,
138 sa->sa_offset + CGSIX_THC_OFFSET,
139 sizeof(*sc->sc_thc),
140 BUS_SPACE_MAP_LINEAR, &bh) != 0) {
141 aprint_error_dev(self, "cannot map THC registers\n");
142 return;
143 }
144 sc->sc_thc = (struct cg6_thc *)bus_space_vaddr(sa->sa_bustag, bh);
145
146 if (sbus_bus_map(sa->sa_bustag,
147 sa->sa_slot,
148 sa->sa_offset + CGSIX_TEC_OFFSET,
149 sizeof(*sc->sc_tec),
150 BUS_SPACE_MAP_LINEAR, &bh) != 0) {
151 aprint_error_dev(self, "cannot map TEC registers\n");
152 return;
153 }
154 sc->sc_tec = (struct cg6_tec_xxx *)bus_space_vaddr(sa->sa_bustag, bh);
155
156 if (sbus_bus_map(sa->sa_bustag,
157 sa->sa_slot,
158 sa->sa_offset + CGSIX_FBC_OFFSET,
159 sizeof(*sc->sc_fbc),
160 BUS_SPACE_MAP_LINEAR, &bh) != 0) {
161 aprint_error_dev(self, "cannot map FBC registers\n");
162 return;
163 }
164 sc->sc_fbc = (struct cg6_fbc *)bus_space_vaddr(sa->sa_bustag, bh);
165
166 name = prom_getpropstring(node, "model");
167
168 isconsole = fb_is_console(node);
169
170 /*
171 * we need the address of the framebuffer, no matter if we're console or
172 * not.
173 */
174 sc->sc_ramsize = prom_getpropint(node, "vmsize", 1) * 1024 * 1024;
175 if (sbus_bus_map(sa->sa_bustag,
176 sa->sa_slot,
177 sa->sa_offset + CGSIX_RAM_OFFSET,
178 sc->sc_ramsize,
179 BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_LARGE,
180 &bh) != 0) {
181 aprint_error_dev(self, "cannot map pixels\n");
182 return;
183 }
184 sc->sc_fb.fb_pixels = (void *)bus_space_vaddr(sa->sa_bustag, bh);
185
186 cg6attach(sc, name, isconsole);
187 }
188