1 /* $NetBSD: tvrx.c,v 1.3 2011/02/18 19:15:43 tsutsui Exp $ */
2 /* $OpenBSD: tvrx.c,v 1.1 2006/04/14 21:05:43 miod Exp $ */
3
4 /*
5 * Copyright (c) 2006, Miodrag Vallat.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
21 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
25 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
26 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 *
29 */
30
31 /*
32 * Graphics routines for the TurboVRX frame buffer
33 */
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/conf.h>
38 #include <sys/device.h>
39 #include <sys/proc.h>
40 #include <sys/ioctl.h>
41 #include <sys/bus.h>
42 #include <sys/cpu.h>
43
44 #include <machine/autoconf.h>
45
46 #include <hp300/dev/dioreg.h>
47 #include <hp300/dev/diovar.h>
48 #include <hp300/dev/diodevs.h>
49
50 #include <dev/cons.h>
51
52 #include <dev/wscons/wsconsio.h>
53 #include <dev/wscons/wsdisplayvar.h>
54 #include <dev/rasops/rasops.h>
55
56 #include <hp300/dev/diofbreg.h>
57 #include <hp300/dev/diofbvar.h>
58
59 struct tvrx_softc {
60 device_t sc_dev;
61 struct diofb *sc_fb;
62 struct diofb sc_fb_store;
63 int sc_scode;
64 };
65
66 static int tvrx_match(device_t, cfdata_t, void *);
67 static void tvrx_attach(device_t, device_t, void *);
68
69 CFATTACH_DECL_NEW(tvrx, sizeof(struct tvrx_softc),
70 tvrx_match, tvrx_attach, NULL, NULL);
71
72 static int tvrx_reset(struct diofb *, int, struct diofbreg *);
73
74 static int tvrx_ioctl(void *, void *, u_long, void *, int, struct lwp *);
75
76 static struct wsdisplay_accessops tvrx_accessops = {
77 tvrx_ioctl,
78 diofb_mmap,
79 diofb_alloc_screen,
80 diofb_free_screen,
81 diofb_show_screen,
82 NULL, /* load_font */
83 };
84
85 /*
86 * Attachment glue
87 */
88
89 int
tvrx_match(device_t parent,cfdata_t cf,void * aux)90 tvrx_match(device_t parent, cfdata_t cf, void *aux)
91 {
92 struct dio_attach_args *da = aux;
93
94 if (da->da_id != DIO_DEVICE_ID_FRAMEBUFFER ||
95 da->da_secid != DIO_DEVICE_SECID_TIGERSHARK)
96 return 0;
97
98 return 1;
99 }
100
101 void
tvrx_attach(device_t parent,device_t self,void * aux)102 tvrx_attach(device_t parent, device_t self, void *aux)
103 {
104 struct tvrx_softc *sc = device_private(self);
105 struct dio_attach_args *da = aux;
106 bus_space_handle_t bsh;
107 struct diofbreg *fbr;
108
109 sc->sc_dev = self;
110 sc->sc_scode = da->da_scode;
111 if (sc->sc_scode == conscode) {
112 fbr = (struct diofbreg *)conaddr; /* already mapped */
113 sc->sc_fb = &diofb_cn;
114 } else {
115 sc->sc_fb = &sc->sc_fb_store;
116 if (bus_space_map(da->da_bst, da->da_addr, da->da_size, 0,
117 &bsh)) {
118 aprint_error(": can't map framebuffer\n");
119 return;
120 }
121 fbr = bus_space_vaddr(da->da_bst, bsh);
122 if (tvrx_reset(sc->sc_fb, sc->sc_scode, fbr) != 0) {
123 aprint_error(": can't reset framebuffer\n");
124 return;
125 }
126 }
127
128 diofb_end_attach(self, &tvrx_accessops, sc->sc_fb,
129 sc->sc_scode == conscode, NULL);
130 }
131
132 /*
133 * Initialize hardware and display routines.
134 */
135 int
tvrx_reset(struct diofb * fb,int scode,struct diofbreg * fbr)136 tvrx_reset(struct diofb *fb, int scode, struct diofbreg *fbr)
137 {
138 int rc;
139
140 if ((rc = diofb_fbinquire(fb, scode, fbr)) != 0)
141 return rc;
142
143 /*
144 * We rely on the PROM to initialize the frame buffer in the mode
145 * we expect it: cleared, overlay plane enabled and accessible
146 * at the beginning of the video memory.
147 *
148 * This is NOT the mode we would end up by simply resetting the
149 * board.
150 */
151
152 fb->ri.ri_depth = 1;
153 fb->bmv = diofb_mono_windowmove;
154 diofb_fbsetup(fb);
155
156 return 0;
157 }
158
159 int
tvrx_ioctl(void * v,void * vs,u_long cmd,void * data,int flags,struct lwp * l)160 tvrx_ioctl(void *v, void *vs, u_long cmd, void *data, int flags, struct lwp *l)
161 {
162 struct diofb *fb = v;
163 struct wsdisplay_fbinfo *wdf;
164
165 switch (cmd) {
166 case WSDISPLAYIO_GTYPE:
167 *(u_int *)data = WSDISPLAY_TYPE_TVRX;
168 return 0;
169 case WSDISPLAYIO_SMODE:
170 fb->mapmode = *(u_int *)data;
171 return 0;
172 case WSDISPLAYIO_GINFO:
173 wdf = (void *)data;
174 wdf->width = fb->ri.ri_width;
175 wdf->height = fb->ri.ri_height;
176 wdf->depth = fb->ri.ri_depth;
177 wdf->cmsize = 0;
178 return 0;
179 case WSDISPLAYIO_LINEBYTES:
180 *(u_int *)data = fb->ri.ri_stride;
181 return 0;
182 case WSDISPLAYIO_GETCMAP:
183 case WSDISPLAYIO_PUTCMAP:
184 /* until color support is implemented */
185 return EPASSTHROUGH;
186 case WSDISPLAYIO_GVIDEO:
187 case WSDISPLAYIO_SVIDEO:
188 /* unsupported */
189 return EPASSTHROUGH;
190 }
191
192 return EPASSTHROUGH;
193 }
194
195 /*
196 * Console support
197 */
198
199 int
tvrxcnattach(bus_space_tag_t bst,bus_addr_t addr,int scode)200 tvrxcnattach(bus_space_tag_t bst, bus_addr_t addr, int scode)
201 {
202 bus_space_handle_t bsh;
203 void *va;
204 struct diofbreg *fbr;
205 struct diofb *fb = &diofb_cn;
206 int size;
207
208 if (bus_space_map(bst, addr, PAGE_SIZE, 0, &bsh))
209 return 1;
210 va = bus_space_vaddr(bst, bsh);
211 fbr = va;
212
213 if (badaddr(va) ||
214 fbr->id != GRFHWID || fbr->fbid == GID_TIGER) {
215 bus_space_unmap(bst, bsh, PAGE_SIZE);
216 return 1;
217 }
218
219 size = DIO_SIZE(scode, va);
220
221 bus_space_unmap(bst, bsh, PAGE_SIZE);
222 if (bus_space_map(bst, addr, size, 0, &bsh))
223 return 1;
224 va = bus_space_vaddr(bst, bsh);
225
226 /*
227 * Initialize the framebuffer hardware.
228 */
229 conscode = scode;
230 conaddr = va;
231 tvrx_reset(fb, conscode, (struct diofbreg *)conaddr);
232
233 /*
234 * Initialize the terminal emulator.
235 */
236 diofb_cnattach(fb);
237 return 0;
238 }
239