Annotation of sys/arch/vax/vax/led.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: led.c,v 1.4 2006/08/27 16:55:41 miod Exp $ */
2: /* $NetBSD: leds.c,v 1.4 2005/12/11 12:19:37 christos Exp $ */
3:
4: /*
5: * Copyright (c) 1998 Jason L. Wright (jason@thought.net)
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: * Copyright (c) 1997 The NetBSD Foundation, Inc.
31: * All rights reserved.
32: *
33: * This code is derived from software contributed to The NetBSD Foundation
34: * by Gordon W. Ross and der Mouse.
35: *
36: * Redistribution and use in source and binary forms, with or without
37: * modification, are permitted provided that the following conditions
38: * are met:
39: * 1. Redistributions of source code must retain the above copyright
40: * notice, this list of conditions and the following disclaimer.
41: * 2. Redistributions in binary form must reproduce the above copyright
42: * notice, this list of conditions and the following disclaimer in the
43: * documentation and/or other materials provided with the distribution.
44: * 3. All advertising materials mentioning features or use of this software
45: * must display the following acknowledgement:
46: * This product includes software developed by the NetBSD
47: * Foundation, Inc. and its contributors.
48: * 4. Neither the name of The NetBSD Foundation nor the names of its
49: * contributors may be used to endorse or promote products derived
50: * from this software without specific prior written permission.
51: *
52: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
53: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
54: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
55: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
56: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
57: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
58: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
59: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
60: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
61: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
62: * POSSIBILITY OF SUCH DAMAGE.
63: */
64:
65: /*
66: * Functions to flash the LEDs with some pattern.
67: */
68:
69: #include <sys/param.h>
70: #include <sys/systm.h>
71: #include <sys/kernel.h>
72: #include <sys/device.h>
73: #include <sys/conf.h>
74: #include <sys/timeout.h>
75:
76: #include <machine/cpu.h>
77: #include <machine/nexus.h>
78: #include <machine/sid.h>
79:
80: struct led_softc {
81: struct device sc_dev;
82: struct timeout sc_tmo;
83: volatile u_short *sc_reg;
84: const u_int8_t *sc_pat, *sc_patpos;
85: };
86:
87: /*
88: * Patterns for 8 and 4 led displays.
89: */
90: static const u_int8_t led_pattern8[] = {
91: 0xfe, 0xfd, 0xfb, 0xf7, 0xef, 0xdf, 0xbf, 0x7f,
92: 0xbf, 0xdf, 0xef, 0xf7, 0xfb, 0xfd, 0x00
93: };
94: static const u_int8_t led_pattern4[] = {
95: 0x0e, 0x0d, 0x0b, 0x07, 0x0b, 0x0d, 0x00
96: };
97:
98: int ledmatch(struct device *, void *, void *);
99: void ledattach(struct device *, struct device *, void *);
100: void led_blink(void *);
101:
102: struct cfattach led_ca = {
103: sizeof(struct led_softc), ledmatch, ledattach
104: };
105:
106: struct cfdriver led_cd = {
107: NULL, "led", DV_DULL
108: };
109:
110: int
111: ledmatch(struct device *parent, void *cf, void *aux)
112: {
113: struct mainbus_attach_args *maa = aux;
114:
115: if (maa->maa_bustype != VAX_LEDS)
116: return (0);
117:
118: switch (vax_boardtype) {
119: #if VAX46 || VAX48 || VAX49 || VAX53 || VXT
120: #if VAX46
121: case VAX_BTYP_46:
122: #endif
123: #if VAX48
124: case VAX_BTYP_48:
125: #endif
126: #if VAX49
127: case VAX_BTYP_49:
128: #endif
129: #if VAX53
130: case VAX_BTYP_1303:
131: #endif
132: #if VXT
133: case VAX_BTYP_VXT:
134: #endif
135: return (1);
136: #endif
137: default:
138: return (0);
139: }
140: }
141:
142: void
143: ledattach(struct device *parent, struct device *self, void *aux)
144: {
145: struct led_softc *sc = (void *)self;
146: #if VAX49 || VAX53 || VXT
147: vaddr_t pgva;
148: #endif
149:
150: printf("\n");
151:
152: switch (vax_boardtype) {
153: #if VAX46
154: case VAX_BTYP_46:
155: {
156: extern struct vs_cpu *ka46_cpu;
157: sc->sc_reg = (volatile u_short *)(&ka46_cpu->vc_diagdsp);
158: sc->sc_pat = led_pattern8;
159: }
160: break;
161: #endif
162: #if VAX48
163: case VAX_BTYP_48:
164: {
165: extern struct vs_cpu *ka48_cpu;
166: sc->sc_reg = (volatile u_short *)(&ka48_cpu->vc_diagdsp);
167: sc->sc_pat = led_pattern8;
168: }
169: break;
170: #endif
171: #if VAX49
172: case VAX_BTYP_49:
173: pgva = vax_map_physmem(0x25800000, 1);
174: sc->sc_reg = (volatile u_short *)(pgva + 4);
175: sc->sc_pat = led_pattern8;
176: break;
177: #endif
178: #if VAX53
179: case VAX_BTYP_1303:
180: pgva = vax_map_physmem(0x20140000, 1);
181: sc->sc_reg = (volatile u_short *)(pgva + 0x30);
182: sc->sc_pat = led_pattern4;
183: break;
184: #endif
185: #if VXT
186: case VAX_BTYP_VXT:
187: pgva = vax_map_physmem(0x200c1000, 1);
188: sc->sc_reg = (volatile u_short *)pgva;
189: sc->sc_pat = led_pattern8;
190: break;
191: #endif
192: }
193:
194: sc->sc_patpos = sc->sc_pat;
195: timeout_set(&sc->sc_tmo, led_blink, sc);
196: led_blink(sc);
197: }
198:
199: void
200: led_blink(void *v)
201: {
202: struct led_softc *sc = v;
203: extern int vax_led_blink;
204:
205: if (sc == NULL) {
206: /* find our softc if we come from cpu_sysctl */
207: if (led_cd.cd_ndevs != 0)
208: sc = (struct led_softc *)led_cd.cd_devs[0];
209: if (sc == NULL)
210: return;
211: }
212:
213: if (vax_led_blink == 0) {
214: *sc->sc_reg = 0xff;
215: return;
216: }
217:
218: *sc->sc_reg = *sc->sc_patpos++;
219: if (*sc->sc_patpos == 0)
220: sc->sc_patpos = sc->sc_pat;
221:
222: timeout_add(&sc->sc_tmo,
223: (((averunnable.ldavg[0] + FSCALE) * hz) >> (FSHIFT + 3)));
224: }
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