acpi_apm.c revision 1.1
1 /* $NetBSD: acpi_apm.c,v 1.1 2006/07/08 20:23:53 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas and by Jared McNeill. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Autoconfiguration support for the Intel ACPI Component Architecture 41 * ACPI reference implementation. 42 */ 43 44 #include <sys/cdefs.h> 45 __KERNEL_RCSID(0, "$NetBSD: acpi_apm.c,v 1.1 2006/07/08 20:23:53 christos Exp $"); 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/device.h> 50 #include <sys/malloc.h> 51 #include <sys/kernel.h> 52 #include <sys/proc.h> 53 #include <sys/sysctl.h> 54 #include <sys/select.h> 55 #include <sys/envsys.h> 56 #include <dev/sysmon/sysmonvar.h> 57 58 #include <dev/acpi/acpica.h> 59 #include <dev/apm/apmvar.h> 60 61 static void acpiapm_disconnect(void *); 62 static void acpiapm_enable(void *, int); 63 static int acpiapm_set_powstate(void *, u_int, u_int); 64 static int acpiapm_get_powstat(void *, u_int, struct apm_power_info *); 65 static int acpiapm_get_event(void *, u_int *, u_int *); 66 static void acpiapm_cpu_busy(void *); 67 static void acpiapm_cpu_idle(void *); 68 static void acpiapm_get_capabilities(void *, u_int *, u_int *); 69 70 struct apm_accessops acpiapm_accessops = { 71 acpiapm_disconnect, 72 acpiapm_enable, 73 acpiapm_set_powstate, 74 acpiapm_get_powstat, 75 acpiapm_get_event, 76 acpiapm_cpu_busy, 77 acpiapm_cpu_idle, 78 acpiapm_get_capabilities, 79 }; 80 81 #ifdef ACPI_APM_DEBUG 82 #define DPRINTF(a) uprintf a 83 #else 84 #define DPRINTF(a) 85 #endif 86 87 struct acpi_softc; 88 extern ACPI_STATUS acpi_enter_sleep_state(struct acpi_softc *, int); 89 static int acpiapm_match(struct device *, struct cfdata *, void *); 90 static void acpiapm_attach(struct device *, struct device *, void *); 91 92 CFATTACH_DECL(acpiapm, sizeof(struct apm_softc), 93 acpiapm_match, acpiapm_attach, NULL, NULL); 94 95 static int 96 acpiapm_match(struct device *parent, struct cfdata *match, void *aux) 97 { 98 return apm_match(); 99 } 100 101 static void 102 acpiapm_attach(struct device *parent, struct device *self, void *aux) 103 { 104 struct apm_softc *sc = (struct apm_softc *)self; 105 106 sc->sc_ops = &acpiapm_accessops; 107 sc->sc_cookie = parent; 108 sc->sc_vers = 0x0102; 109 sc->sc_detail = 0; 110 sc->sc_hwflags = APM_F_DONT_RUN_HOOKS; 111 apm_attach(sc); 112 } 113 114 /***************************************************************************** 115 * Minimalistic ACPI /dev/apm emulation support, for ACPI suspend 116 *****************************************************************************/ 117 118 static void 119 acpiapm_disconnect(void *opaque) 120 { 121 return; 122 } 123 124 static void 125 acpiapm_enable(void *opaque, int onoff) 126 { 127 return; 128 } 129 130 static int 131 acpiapm_set_powstate(void *opaque, u_int devid, u_int powstat) 132 { 133 struct acpi_softc *sc = opaque; 134 135 if (devid != APM_DEV_ALLDEVS) 136 return APM_ERR_UNRECOG_DEV; 137 138 switch (powstat) { 139 case APM_SYS_READY: 140 break; 141 case APM_SYS_STANDBY: 142 acpi_enter_sleep_state(sc, ACPI_STATE_S1); 143 break; 144 case APM_SYS_SUSPEND: 145 acpi_enter_sleep_state(sc, ACPI_STATE_S3); 146 break; 147 case APM_SYS_OFF: 148 break; 149 case APM_LASTREQ_INPROG: 150 break; 151 case APM_LASTREQ_REJECTED: 152 break; 153 } 154 155 return 0; 156 } 157 158 static int 159 acpiapm_get_powstat(void *opaque, u_int batteryid, struct apm_power_info *pinfo) 160 { 161 int i, curcap, lowcap, warncap, cap, descap, lastcap, discharge; 162 envsys_tre_data_t etds; 163 envsys_basic_info_t ebis; 164 165 curcap = lowcap = warncap = cap = descap = lastcap = discharge = -1; 166 167 (void)memset(pinfo, 0, sizeof(*pinfo)); 168 pinfo->ac_state = APM_AC_UNKNOWN; 169 pinfo->minutes_valid = 0; 170 pinfo->minutes_left = 0xffff; 171 pinfo->batteryid = 0; 172 pinfo->nbattery = 1; 173 pinfo->battery_flags = 0; 174 pinfo->battery_state = APM_BATT_UNKNOWN; 175 pinfo->battery_life = APM_BATT_LIFE_UNKNOWN; 176 177 for (i = 0;; i++) { 178 const char *desc; 179 int data; 180 int flags; 181 182 ebis.sensor = i; 183 if (sysmonioctl_envsys(0, ENVSYS_GTREINFO, (void *)&ebis, 0, 184 NULL) || (ebis.validflags & ENVSYS_FVALID) == 0) 185 break; 186 etds.sensor = i; 187 if (sysmonioctl_envsys(0, ENVSYS_GTREDATA, (void *)&etds, 0, 188 NULL)) 189 continue; 190 desc = ebis.desc; 191 flags = etds.validflags; 192 data = etds.cur.data_s; 193 194 DPRINTF(("%d %s %d %d\n", i, desc, data, flags)); 195 if ((flags & ENVSYS_FCURVALID) == 0) 196 continue; 197 if (strstr(desc, " disconnected")) { 198 pinfo->ac_state = data ? APM_AC_OFF : APM_AC_ON; 199 break; 200 } else if (strstr(desc, " present") && data == 0) { 201 pinfo->battery_flags |= APM_BATT_FLAG_NO_SYSTEM_BATTERY; 202 pinfo->battery_state = APM_BATT_ABSENT; 203 } else if (strstr(desc, " charging") && data) { 204 pinfo->battery_flags |= APM_BATT_FLAG_CHARGING; 205 pinfo->battery_state = APM_BATT_CHARGING; 206 } else if (strstr(desc, " discharging") && data) 207 pinfo->battery_flags &= ~APM_BATT_FLAG_CHARGING; 208 else if (strstr(desc, " warn cap")) 209 warncap = data / 1000; 210 else if (strstr(desc, " low cap")) 211 lowcap = data / 1000; 212 else if (strstr(desc, " last full cap")) 213 lastcap = data / 1000; 214 else if (strstr(desc, " design cap")) 215 descap = data / 1000; 216 else if (strstr(desc, " charge") && 217 strstr(desc, " charge rate") == NULL) 218 cap = data / 1000; 219 else if (strstr(desc, " discharge rate")) 220 discharge = data / 1000; 221 } 222 223 if (cap != -1) { 224 if (warncap != -1 && cap < warncap) { 225 pinfo->battery_flags |= APM_BATT_FLAG_CRITICAL; 226 pinfo->battery_state = APM_BATT_CRITICAL; 227 } else if (lowcap != -1 && cap < lowcap) { 228 pinfo->battery_flags |= APM_BATT_FLAG_LOW; 229 pinfo->battery_state = APM_BATT_LOW; 230 } 231 if (lastcap != -1) 232 pinfo->battery_life = 100 * cap / lastcap; 233 else if (descap != -1) 234 pinfo->battery_life = 100 * cap / descap; 235 } 236 237 if ((pinfo->battery_flags & APM_BATT_FLAG_CHARGING) == 0) { 238 if (discharge != -1 && cap != -1) 239 pinfo->minutes_left = 60 * cap / discharge; 240 if (pinfo->battery_state == APM_BATT_UNKNOWN) 241 pinfo->battery_state = pinfo->ac_state == APM_AC_ON ? 242 APM_BATT_HIGH : APM_BATT_LOW; 243 } else { 244 if (pinfo->battery_state == APM_BATT_UNKNOWN) 245 pinfo->battery_state = APM_BATT_HIGH; 246 } 247 DPRINTF(("%d %d %d %d %d %d\n", cap, warncap, lowcap, lastcap, descap, 248 discharge)); 249 DPRINTF(("pinfo %d %d %d %d\n", pinfo->battery_flags, 250 pinfo->battery_state, pinfo->battery_life, pinfo->battery_life)); 251 return 0; 252 } 253 254 static int 255 acpiapm_get_event(void *opaque, u_int *event_type, u_int *event_info) 256 { 257 return APM_ERR_NOEVENTS; 258 } 259 260 static void 261 acpiapm_cpu_busy(void *opaque) 262 { 263 return; 264 } 265 266 static void 267 acpiapm_cpu_idle(void *opaque) 268 { 269 return; 270 } 271 272 static void 273 acpiapm_get_capabilities(void *opaque, u_int *numbatts, u_int *capflags) 274 { 275 *numbatts = 1; 276 *capflags = APM_GLOBAL_STANDBY | APM_GLOBAL_SUSPEND; 277 return; 278 } 279
Indexes created Tue Sep 23 07:09:52 GMT 2025