Annotation of sys/arch/vax/vax/led.c, Revision 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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