1 /* $NetBSD: pwctl.c,v 1.19 2009/05/12 14:22:39 cegger 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 1.19 2009/05/12 14:22:39 cegger Exp $"); 41 42 #ifdef _KERNEL_OPT 43 #include "opt_pwctl.h" 44 #endif 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/device.h> 49 #include <sys/reboot.h> 50 51 #include <sys/bus.h> 52 #include <machine/config_hook.h> 53 #include <machine/platid.h> 54 #include <machine/platid_mask.h> 55 56 #include <dev/hpc/hpciovar.h> 57 58 #include "locators.h" 59 60 #ifdef PWCTLDEBUG 61 #ifndef PWCTLDEBUG_CONF 62 #define PWCTLDEBUG_CONF 0 63 #endif 64 int pwctl_debug = PWCTLDEBUG_CONF; 65 #define DPRINTF(arg) if (pwctl_debug) printf arg; 66 #define VPRINTF(arg) if (bootverbose) printf arg; 67 #else 68 #define DPRINTF(arg) 69 #define VPRINTF(arg) if (bootverbose) printf arg; 70 #endif 71 72 struct pwctl_softc { 73 struct device sc_dev; 74 hpcio_chip_t sc_hc; 75 int sc_port; 76 long sc_id; 77 int sc_on, sc_off; 78 config_hook_tag sc_hook_tag; 79 config_hook_tag sc_hook_hardpower; 80 config_hook_tag sc_ghook_tag; 81 int sc_save; 82 int sc_initvalue; 83 }; 84 85 static int pwctl_match(device_t, cfdata_t, void *); 86 static void pwctl_attach(device_t, device_t, void *); 87 static int pwctl_hook(void *, int, long, void *); 88 static int pwctl_ghook(void *, int, long, void *); 89 int pwctl_hardpower(void *, int, long, void *); 90 91 CFATTACH_DECL(pwctl, sizeof(struct pwctl_softc), 92 pwctl_match, pwctl_attach, NULL, NULL); 93 94 int 95 pwctl_match(device_t parent, cfdata_t match, void *aux) 96 { 97 struct hpcio_attach_args *haa = aux; 98 platid_mask_t mask; 99 100 if (strcmp(haa->haa_busname, HPCIO_BUSNAME)) 101 return (0); 102 if (match->cf_loc[HPCIOIFCF_PLATFORM] == 0) 103 return (0); 104 mask = PLATID_DEREF(match->cf_loc[HPCIOIFCF_PLATFORM]); 105 if (!platid_match(&platid, &mask)) 106 return (0); 107 return (1); 108 } 109 110 void 111 pwctl_attach(device_t parent, device_t self, void *aux) 112 { 113 struct hpcio_attach_args *haa = aux; 114 int *loc; 115 struct pwctl_softc *sc = device_private(self); 116 117 loc = device_cfdata(&sc->sc_dev)->cf_loc; 118 sc->sc_hc = (*haa->haa_getchip)(haa->haa_sc, loc[HPCIOIFCF_IOCHIP]); 119 sc->sc_port = loc[HPCIOIFCF_PORT]; 120 sc->sc_id = loc[HPCIOIFCF_ID]; 121 sc->sc_on = loc[HPCIOIFCF_ACTIVE] ? 1 : 0; 122 sc->sc_off = loc[HPCIOIFCF_ACTIVE] ? 0 : 1; 123 sc->sc_initvalue = loc[HPCIOIFCF_INITVALUE]; 124 125 printf(" port=%d id=%ld on=%d%s", 126 sc->sc_port, sc->sc_id, sc->sc_on, 127 sc->sc_initvalue == -1 ? "" : 128 sc->sc_initvalue ? " init=on" : " init=off"); 129 130 if (sc->sc_port == HPCIOIFCF_PORT_DEFAULT || 131 sc->sc_id == HPCIOIFCF_ID_DEFAULT) { 132 printf(" (ignored)"); 133 } else { 134 sc->sc_hook_tag = config_hook(CONFIG_HOOK_POWERCONTROL, 135 sc->sc_id, CONFIG_HOOK_SHARE, pwctl_hook, sc); 136 sc->sc_ghook_tag = config_hook(CONFIG_HOOK_GET, 137 sc->sc_id, CONFIG_HOOK_SHARE, pwctl_ghook, sc); 138 sc->sc_hook_hardpower = config_hook(CONFIG_HOOK_PMEVENT, 139 CONFIG_HOOK_PMEVENT_HARDPOWER, CONFIG_HOOK_SHARE, 140 pwctl_hardpower, sc); 141 } 142 143 if (sc->sc_initvalue != -1) 144 hpcio_portwrite(sc->sc_hc, sc->sc_port, 145 sc->sc_initvalue ? sc->sc_on : sc->sc_off); 146 printf("\n"); 147 } 148 149 int 150 pwctl_hook(void *ctx, int type, long id, void *msg) 151 { 152 struct pwctl_softc *sc = ctx; 153 154 DPRINTF(("pwctl hook: port %d %s(%d)", sc->sc_port, 155 msg ? "ON" : "OFF", msg ? sc->sc_on : sc->sc_off)); 156 hpcio_portwrite(sc->sc_hc, sc->sc_port, 157 msg ? sc->sc_on : sc->sc_off); 158 159 return (0); 160 } 161 162 int 163 pwctl_ghook(void *ctx, int type, long id, void *msg) 164 { 165 struct pwctl_softc *sc = ctx; 166 167 if (CONFIG_HOOK_VALUEP(msg)) 168 return (1); 169 170 *(int*)msg = hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_on; 171 DPRINTF(("pwctl ghook: port %d %s(%d)", sc->sc_port, 172 *(int*)msg? "ON" : "OFF", *(int*)msg ? sc->sc_on : sc->sc_off)); 173 174 return (0); 175 } 176 177 int 178 pwctl_hardpower(void *ctx, int type, long id, void *msg) 179 { 180 struct pwctl_softc *sc = ctx; 181 int why =(int)msg; 182 183 VPRINTF(("pwctl hardpower: port %d %s: %s(%d)\n", sc->sc_port, 184 why == PWR_RESUME? "resume" 185 : why == PWR_SUSPEND? "suspend" : "standby", 186 sc->sc_save == sc->sc_on ? "on": "off", sc->sc_save)); 187 188 switch (why) { 189 case PWR_STANDBY: 190 break; 191 case PWR_SUSPEND: 192 sc->sc_save = hpcio_portread(sc->sc_hc, sc->sc_port); 193 hpcio_portwrite(sc->sc_hc, sc->sc_port, sc->sc_off); 194 break; 195 case PWR_RESUME: 196 hpcio_portwrite(sc->sc_hc, sc->sc_port, sc->sc_save); 197 break; 198 } 199 200 return (0); 201 } 202