1 /* $NetBSD: pwctl.c,v 1.11 2002/10/02 16:33:50 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1999-2001 5 * TAKEMURA Shin and PocketBSD Project. All rights reserved. 6 * Copyright (c) 2000,2001 7 * SATO Kazumi. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the PocketBSD project 20 * and its contributors. 21 * 4. Neither the name of the project nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: pwctl.c,v 1.11 2002/10/02 16:33:50 thorpej Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 #include <sys/reboot.h> 46 47 #include <machine/bus.h> 48 #include <machine/config_hook.h> 49 #include <machine/platid.h> 50 #include <machine/platid_mask.h> 51 52 #include <dev/hpc/hpciovar.h> 53 54 #include "locators.h" 55 56 #define PWCTLDEBUG 57 #ifndef PWCTLDEBUG_CONF 58 #define PWCTLDEBUG_CONF 0 59 #endif 60 #ifdef PWCTLDEBUG 61 int pwctl_debug = PWCTLDEBUG_CONF; 62 #define DPRINTF(arg) if (pwctl_debug) printf arg; 63 #define VPRINTF(arg) if (bootverbose) printf arg; 64 #else 65 #define DPRINTF(arg) 66 #define VPRINTF(arg) if (bootverbose) printf arg; 67 #endif 68 69 struct pwctl_softc { 70 struct device sc_dev; 71 hpcio_chip_t sc_hc; 72 int sc_port; 73 long sc_id; 74 int sc_on, sc_off; 75 config_hook_tag sc_hook_tag; 76 config_hook_tag sc_hook_hardpower; 77 config_hook_tag sc_ghook_tag; 78 int sc_save; 79 int sc_initvalue; 80 }; 81 82 static int pwctl_match(struct device *, struct cfdata *, void *); 83 static void pwctl_attach(struct device *, struct device *, void *); 84 static int pwctl_hook(void *, int, long, void *); 85 static int pwctl_ghook(void *, int, long, void *); 86 int pwctl_hardpower(void *, int, long, void *); 87 88 CFATTACH_DECL(pwctl, sizeof(struct pwctl_softc), 89 pwctl_match, pwctl_attach, NULL, NULL); 90 91 int 92 pwctl_match(struct device *parent, struct cfdata *match, void *aux) 93 { 94 struct hpcio_attach_args *haa = aux; 95 platid_mask_t mask; 96 97 if (strcmp(haa->haa_busname, HPCIO_BUSNAME)) 98 return (0); 99 if (match->cf_loc[HPCIOIFCF_PLATFORM] == 0) 100 return (0); 101 mask = PLATID_DEREF(match->cf_loc[HPCIOIFCF_PLATFORM]); 102 if (!platid_match(&platid, &mask)) 103 return (0); 104 return (1); 105 } 106 107 void 108 pwctl_attach(struct device *parent, struct device *self, void *aux) 109 { 110 struct hpcio_attach_args *haa = aux; 111 int *loc; 112 struct pwctl_softc *sc = (void*)self; 113 114 loc = sc->sc_dev.dv_cfdata->cf_loc; 115 sc->sc_hc = (*haa->haa_getchip)(haa->haa_sc, loc[HPCIOIFCF_IOCHIP]); 116 sc->sc_port = loc[HPCIOIFCF_PORT]; 117 sc->sc_id = loc[HPCIOIFCF_ID]; 118 sc->sc_on = loc[HPCIOIFCF_ACTIVE] ? 1 : 0; 119 sc->sc_off = loc[HPCIOIFCF_ACTIVE] ? 0 : 1; 120 sc->sc_initvalue = loc[HPCIOIFCF_INITVALUE]; 121 122 printf(" port=%d id=%ld on=%d%s", 123 sc->sc_port, sc->sc_id, sc->sc_on, 124 sc->sc_initvalue == -1 ? "" : 125 sc->sc_initvalue ? " init=on" : " init=off"); 126 127 if (sc->sc_port == HPCIOIFCF_PORT_DEFAULT || 128 sc->sc_id == HPCIOIFCF_ID_DEFAULT) { 129 printf(" (ignored)"); 130 } else { 131 sc->sc_hook_tag = config_hook(CONFIG_HOOK_POWERCONTROL, 132 sc->sc_id, CONFIG_HOOK_SHARE, pwctl_hook, sc); 133 sc->sc_ghook_tag = config_hook(CONFIG_HOOK_GET, 134 sc->sc_id, CONFIG_HOOK_SHARE, pwctl_ghook, sc); 135 sc->sc_hook_hardpower = config_hook(CONFIG_HOOK_PMEVENT, 136 CONFIG_HOOK_PMEVENT_HARDPOWER, CONFIG_HOOK_SHARE, 137 pwctl_hardpower, sc); 138 } 139 140 if (sc->sc_initvalue != -1) 141 hpcio_portwrite(sc->sc_hc, sc->sc_port, 142 sc->sc_initvalue ? sc->sc_on : sc->sc_off); 143 printf("\n"); 144 } 145 146 int 147 pwctl_hook(void *ctx, int type, long id, void *msg) 148 { 149 struct pwctl_softc *sc = ctx; 150 151 DPRINTF(("pwctl hook: port %d %s(%d)", sc->sc_port, 152 msg ? "ON" : "OFF", msg ? sc->sc_on : sc->sc_off)); 153 hpcio_portwrite(sc->sc_hc, sc->sc_port, 154 msg ? sc->sc_on : sc->sc_off); 155 156 return (0); 157 } 158 159 int 160 pwctl_ghook(void *ctx, int type, long id, void *msg) 161 { 162 struct pwctl_softc *sc = ctx; 163 164 if (CONFIG_HOOK_VALUEP(msg)) 165 return (1); 166 167 *(int*)msg = hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_on; 168 DPRINTF(("pwctl ghook: port %d %s(%d)", sc->sc_port, 169 *(int*)msg? "ON" : "OFF", *(int*)msg ? sc->sc_on : sc->sc_off)); 170 171 return (0); 172 } 173 174 int 175 pwctl_hardpower(void *ctx, int type, long id, void *msg) 176 { 177 struct pwctl_softc *sc = ctx; 178 int why =(int)msg; 179 180 VPRINTF(("pwctl hardpower: port %d %s: %s(%d)\n", sc->sc_port, 181 why == PWR_RESUME? "resume" 182 : why == PWR_SUSPEND? "suspend" : "standby", 183 sc->sc_save == sc->sc_on ? "on": "off", sc->sc_save)); 184 185 switch (why) { 186 case PWR_STANDBY: 187 break; 188 case PWR_SUSPEND: 189 sc->sc_save = hpcio_portread(sc->sc_hc, sc->sc_port); 190 hpcio_portwrite(sc->sc_hc, sc->sc_port, sc->sc_off); 191 break; 192 case PWR_RESUME: 193 hpcio_portwrite(sc->sc_hc, sc->sc_port, sc->sc_save); 194 break; 195 } 196 197 return (0); 198 } 199