Annotation of sys/arch/hp300/dev/hyper.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: hyper.c,v 1.15 2006/04/14 21:05:43 miod Exp $ */
2:
3: /*
4: * Copyright (c) 2005, Miodrag Vallat.
5: * All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: *
16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19: * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25: * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26: * POSSIBILITY OF SUCH DAMAGE.
27: *
28: */
29: /*
30: * Copyright (c) 1996 Jason R. Thorpe. All rights reserved.
31: * Copyright (c) 1991 University of Utah.
32: * Copyright (c) 1990, 1993
33: * The Regents of the University of California. All rights reserved.
34: *
35: * This code is derived from software contributed to Berkeley by
36: * the Systems Programming Group of the University of Utah Computer
37: * Science Department and Mark Davies of the Department of Computer
38: * Science, Victoria University of Wellington, New Zealand.
39: *
40: * Redistribution and use in source and binary forms, with or without
41: * modification, are permitted provided that the following conditions
42: * are met:
43: * 1. Redistributions of source code must retain the above copyright
44: * notice, this list of conditions and the following disclaimer.
45: * 2. Redistributions in binary form must reproduce the above copyright
46: * notice, this list of conditions and the following disclaimer in the
47: * documentation and/or other materials provided with the distribution.
48: * 3. Neither the name of the University nor the names of its contributors
49: * may be used to endorse or promote products derived from this software
50: * without specific prior written permission.
51: *
52: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62: * SUCH DAMAGE.
63: *
64: * from: Utah $Hdr: grf_hy.c 1.2 93/08/13$
65: *
66: * @(#)grf_hy.c 8.4 (Berkeley) 1/12/94
67: */
68:
69: /*
70: * Graphics routines for HYPERION frame buffer
71: */
72:
73: #include <sys/param.h>
74: #include <sys/systm.h>
75: #include <sys/conf.h>
76: #include <sys/device.h>
77: #include <sys/ioctl.h>
78: #include <sys/proc.h>
79:
80: #include <machine/autoconf.h>
81: #include <machine/bus.h>
82: #include <machine/cpu.h>
83:
84: #include <hp300/dev/dioreg.h>
85: #include <hp300/dev/diovar.h>
86: #include <hp300/dev/diodevs.h>
87: #include <hp300/dev/intiovar.h>
88:
89: #include <dev/wscons/wsconsio.h>
90: #include <dev/wscons/wsdisplayvar.h>
91: #include <dev/rasops/rasops.h>
92:
93: #include <hp300/dev/diofbreg.h>
94: #include <hp300/dev/diofbvar.h>
95: #include <hp300/dev/hyperreg.h>
96:
97: struct hyper_softc {
98: struct device sc_dev;
99: struct diofb *sc_fb;
100: struct diofb sc_fb_store;
101: };
102:
103: int hyper_match(struct device *, void *, void *);
104: void hyper_attach(struct device *, struct device *, void *);
105:
106: struct cfattach hyper_ca = {
107: sizeof(struct hyper_softc), hyper_match, hyper_attach
108: };
109:
110: struct cfdriver hyper_cd = {
111: NULL, "hyper", DV_DULL
112: };
113:
114: int hyper_reset(struct diofb *, int, struct diofbreg *);
115:
116: int hyper_ioctl(void *, u_long, caddr_t, int, struct proc *);
117: void hyper_burner(void *, u_int, u_int);
118:
119: struct wsdisplay_accessops hyper_accessops = {
120: hyper_ioctl,
121: diofb_mmap,
122: diofb_alloc_screen,
123: diofb_free_screen,
124: diofb_show_screen,
125: NULL, /* load_font */
126: NULL, /* scrollback */
127: NULL, /* getchar */
128: hyper_burner
129: };
130:
131: /*
132: * Attachment glue
133: */
134:
135: int
136: hyper_match(struct device *parent, void *match, void *aux)
137: {
138: struct dio_attach_args *da = aux;
139:
140: if (da->da_id == DIO_DEVICE_ID_FRAMEBUFFER &&
141: da->da_secid == DIO_DEVICE_SECID_HYPERION)
142: return (1);
143:
144: return (0);
145: }
146:
147: void
148: hyper_attach(struct device *parent, struct device *self, void *aux)
149: {
150: struct hyper_softc *sc = (struct hyper_softc *)self;
151: struct dio_attach_args *da = aux;
152: struct diofbreg *fbr;
153: int scode;
154:
155: scode = da->da_scode;
156: if (scode == conscode) {
157: fbr = (struct diofbreg *)conaddr; /* already mapped */
158: sc->sc_fb = &diofb_cn;
159: } else {
160: sc->sc_fb = &sc->sc_fb_store;
161: fbr = (struct diofbreg *)
162: iomap(dio_scodetopa(scode), da->da_size);
163: if (fbr == NULL ||
164: hyper_reset(sc->sc_fb, scode, fbr) != 0) {
165: printf(": can't map framebuffer\n");
166: return;
167: }
168: }
169:
170: diofb_end_attach(self, &hyper_accessops, sc->sc_fb,
171: scode == conscode, NULL);
172: }
173:
174: /*
175: * Initialize hardware and display routines.
176: */
177: int
178: hyper_reset(struct diofb *fb, int scode, struct diofbreg *fbr)
179: {
180: volatile struct hyboxfb *hy = (struct hyboxfb *)fbr;
181: int rc;
182:
183: if ((rc = diofb_fbinquire(fb, scode, fbr)) != 0)
184: return (rc);
185:
186: fb->bmv = diofb_mono_windowmove;
187:
188: fb->ri.ri_depth = 1; /* do not fake a 8bpp frame buffer */
189: diofb_fbsetup(fb);
190:
191: /* enable display */
192: hy->nblank = DISP_VIDEO_ENABLE | DISP_SYNC_ENABLE;
193:
194: return (0);
195: }
196:
197: int
198: hyper_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
199: {
200: struct diofb *fb = v;
201: struct wsdisplay_fbinfo *wdf;
202:
203: switch (cmd) {
204: case WSDISPLAYIO_GTYPE:
205: *(u_int *)data = WSDISPLAY_TYPE_HYPERION;
206: break;
207: case WSDISPLAYIO_SMODE:
208: fb->mapmode = *(u_int *)data;
209: break;
210: case WSDISPLAYIO_GINFO:
211: wdf = (void *)data;
212: wdf->width = fb->ri.ri_width;
213: wdf->height = fb->ri.ri_height;
214: wdf->depth = fb->ri.ri_depth;
215: wdf->cmsize = 0;
216: break;
217: case WSDISPLAYIO_LINEBYTES:
218: *(u_int *)data = fb->ri.ri_stride;
219: break;
220: case WSDISPLAYIO_GVIDEO:
221: case WSDISPLAYIO_SVIDEO:
222: case WSDISPLAYIO_GETCMAP:
223: case WSDISPLAYIO_PUTCMAP:
224: break;
225: default:
226: return (-1);
227: }
228:
229: return (0);
230: }
231:
232: void
233: hyper_burner(void *v, u_int on, u_int flags)
234: {
235: struct diofb *fb = v;
236: volatile struct hyboxfb *hy = (struct hyboxfb *)fb->regkva;
237:
238: if (on) {
239: hy->nblank = DISP_VIDEO_ENABLE | DISP_SYNC_ENABLE;
240: } else {
241: if (flags & WSDISPLAY_BURN_VBLANK)
242: hy->nblank = 0;
243: else
244: hy->nblank = DISP_SYNC_ENABLE;
245: }
246: }
247:
248: /*
249: * Hyperion console support
250: */
251:
252: void
253: hypercninit()
254: {
255: hyper_reset(&diofb_cn, conscode, (struct diofbreg *)conaddr);
256: diofb_cnattach(&diofb_cn);
257: }
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