battery.c revision 1.1
1 /* $NetBSD: battery.c,v 1.1 2007/02/15 01:48:40 macallan Exp $ */ 2 3 /*- 4 * Copyright (c) 2007 Michael Lorenz 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of The NetBSD Foundation nor the names of its 16 * contributors may be used to endorse or promote products derived 17 * from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: battery.c,v 1.1 2007/02/15 01:48:40 macallan Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #include <sys/device.h> 39 #include <sys/proc.h> 40 41 #include <dev/sysmon/sysmonvar.h> 42 #include <dev/sysmon/sysmon_taskq.h> 43 44 #include <macppc/dev/pmuvar.h> 45 #include <macppc/dev/batteryvar.h> 46 #include <machine/bus.h> 47 #include "opt_battery.h" 48 49 #ifdef BATTERY_DEBUG 50 #define DPRINTF printf 51 #else 52 #define DPRINTF while (0) printf 53 #endif 54 55 #define BTYPE_COMET 1 56 #define BTYPE_HOOPER 2 57 58 #define BAT_CPU_TEMPERATURE 0 59 #define BAT_AC_PRESENT 1 60 #define BAT_PRESENT 2 61 #define BAT_VOLTAGE 3 62 #define BAT_CURRENT 4 63 #define BAT_MAX_CHARGE 5 64 #define BAT_CHARGE 6 65 #define BAT_CHARGING 7 66 #define BAT_DISCHARGING 8 67 #define BAT_FULL 9 68 #define BAT_TEMPERATURE 10 69 #define BAT_NSENSORS 11 /* number of sensors */ 70 71 struct battery_softc { 72 struct device sc_dev; 73 struct pmu_ops *sc_pmu_ops; 74 int sc_type; 75 76 /* envsys stuff */ 77 struct sysmon_envsys sc_sysmon; 78 struct envsys_basic_info sc_sinfo[BAT_NSENSORS]; 79 struct envsys_tre_data sc_sdata[BAT_NSENSORS]; 80 81 /* battery status */ 82 int sc_flags; 83 int sc_voltage; 84 int sc_charge; 85 int sc_current; 86 int sc_time; 87 int sc_cpu_temp; 88 int sc_bat_temp; 89 int sc_vmax_charged; 90 int sc_vmax_charging; 91 }; 92 93 static void battery_attach(struct device *, struct device *, void *); 94 static int battery_match(struct device *, struct cfdata *, void *); 95 static int battery_update(struct battery_softc *, int); 96 static void battery_setup_envsys(struct battery_softc *); 97 static int battery_gtredata(struct sysmon_envsys *, struct envsys_tre_data *); 98 static int battery_streinfo(struct sysmon_envsys *, 99 struct envsys_basic_info *); 100 101 CFATTACH_DECL(battery, sizeof(struct battery_softc), 102 battery_match, battery_attach, NULL, NULL); 103 104 static int 105 battery_match(struct device *parent, struct cfdata *cf, void *aux) 106 { 107 struct battery_attach_args *baa = aux; 108 109 if (baa->baa_type == BATTERY_TYPE_LEGACY) 110 return 1; 111 112 return 0; 113 } 114 115 static void 116 battery_attach(struct device *parent, struct device *self, void *aux) 117 { 118 struct battery_attach_args *baa = aux; 119 struct battery_softc *sc = (struct battery_softc *)self; 120 uint32_t reg; 121 122 sc->sc_pmu_ops = baa->baa_pmu_ops; 123 printf(": legacy battery "); 124 125 reg = in32rb(0xf3000034); 126 DPRINTF("reg: %08x\n", reg); 127 if (reg & 0x20000000) { 128 sc->sc_type = BTYPE_HOOPER; 129 sc->sc_vmax_charged = 330; 130 sc->sc_vmax_charging = 365; 131 printf("[hooper]\n"); 132 } else { 133 sc->sc_type = BTYPE_COMET; 134 sc->sc_vmax_charged = 189; 135 sc->sc_vmax_charging = 213; 136 printf("[comet]\n"); 137 } 138 battery_update(sc, 1); 139 battery_setup_envsys(sc); 140 } 141 142 static int 143 battery_update(struct battery_softc *sc, int out) 144 { 145 int len, vmax, pcharge, vb; 146 uint8_t buf[16]; 147 148 len = sc->sc_pmu_ops->do_command(sc->sc_pmu_ops->cookie, 149 PMU_BATTERY_STATE, 0, NULL, buf); 150 if (len != 9) 151 return -1; 152 153 sc->sc_flags = buf[1]; 154 155 if (out) { 156 if (buf[1] & PMU_PWR_AC_PRESENT) 157 printf(" AC"); 158 if (buf[1] & PMU_PWR_BATT_CHARGING) 159 printf(" charging"); 160 if (buf[1] & PMU_PWR_BATT_PRESENT) 161 printf(" present"); 162 if (buf[1] & PMU_PWR_BATT_FULL) 163 printf(" full"); 164 printf("\n"); 165 } 166 167 sc->sc_cpu_temp = buf[4]; 168 169 if ((sc->sc_flags & PMU_PWR_BATT_PRESENT) == 0) { 170 sc->sc_voltage = 0; 171 sc->sc_current = 0; 172 sc->sc_bat_temp = 0; 173 sc->sc_charge = 0; 174 sc->sc_time = 0; 175 return 0; 176 } 177 178 vmax = sc->sc_vmax_charged; 179 vb = (buf[2] << 8) | buf[3]; 180 sc->sc_voltage = (vb * 265 + 72665) / 10; 181 sc->sc_current = buf[6]; 182 if ((sc->sc_flags & PMU_PWR_AC_PRESENT) == 0) { 183 if (sc->sc_current > 200) 184 vb += ((sc->sc_current - 200) * 15) / 100; 185 } else { 186 vmax = sc->sc_vmax_charging; 187 } 188 sc->sc_charge = (100 * vb) / vmax; 189 if (sc->sc_flags & PMU_PWR_PCHARGE_RESET) { 190 pcharge = (buf[7] << 8) | buf[8]; 191 if (pcharge > 6500) 192 pcharge = 6500; 193 pcharge = 100 - pcharge * 100 / 6500; 194 if (pcharge < sc->sc_charge) 195 sc->sc_charge = pcharge; 196 } 197 if (sc->sc_current > 0) { 198 sc->sc_time = (sc->sc_charge * 16440) / sc->sc_current; 199 } else 200 sc->sc_time = 0; 201 202 sc->sc_bat_temp = buf[5]; 203 204 if (out) { 205 printf("voltage: %d.%03d\n", sc->sc_voltage / 1000, 206 sc->sc_voltage % 1000); 207 printf("charge: %d%%\n", sc->sc_charge); 208 if (sc->sc_time > 0) 209 printf("time: %d:%02d\n", sc->sc_time / 60, 210 sc->sc_time % 60); 211 } 212 213 return 0; 214 } 215 216 #define INITDATA(index, unit, string) \ 217 sc->sc_sdata[index].sensor = index; \ 218 sc->sc_sdata[index].units = unit; \ 219 sc->sc_sdata[index].validflags = ENVSYS_FVALID; \ 220 sc->sc_sdata[index].warnflags = 0; \ 221 sc->sc_sinfo[index].sensor = index; \ 222 sc->sc_sinfo[index].units = unit; \ 223 sc->sc_sinfo[index].rfact = 1; \ 224 sc->sc_sinfo[index].validflags = ENVSYS_FVALID; \ 225 snprintf(sc->sc_sinfo[index].desc, sizeof(sc->sc_sinfo[index].desc), \ 226 "%s", string); 227 228 static void 229 battery_setup_envsys(struct battery_softc *sc) 230 { 231 232 INITDATA(BAT_CPU_TEMPERATURE, ENVSYS_STEMP, "CPU temperature"); 233 INITDATA(BAT_AC_PRESENT, ENVSYS_INDICATOR, "AC present"); 234 INITDATA(BAT_PRESENT, ENVSYS_INDICATOR, "Battery present"); 235 INITDATA(BAT_VOLTAGE, ENVSYS_SVOLTS_DC, "Battery voltage"); 236 INITDATA(BAT_CHARGE, ENVSYS_INTEGER, "Battery charge"); 237 INITDATA(BAT_MAX_CHARGE, ENVSYS_INTEGER, "Battery design cap"); 238 INITDATA(BAT_CURRENT, ENVSYS_SAMPS, "Battery current"); 239 INITDATA(BAT_TEMPERATURE, ENVSYS_STEMP, "Battery temperature"); 240 INITDATA(BAT_CHARGING, ENVSYS_INDICATOR, "Battery charging"); 241 INITDATA(BAT_DISCHARGING, ENVSYS_INDICATOR, "Battery discharging"); 242 INITDATA(BAT_FULL, ENVSYS_INDICATOR, "Battery full"); 243 #undef INITDATA 244 245 sc->sc_sysmon.sme_sensor_info = sc->sc_sinfo; 246 sc->sc_sysmon.sme_sensor_data = sc->sc_sdata; 247 sc->sc_sysmon.sme_cookie = sc; 248 sc->sc_sysmon.sme_gtredata = battery_gtredata; 249 sc->sc_sysmon.sme_streinfo = battery_streinfo; 250 sc->sc_sysmon.sme_nsensors = BAT_NSENSORS; 251 sc->sc_sysmon.sme_envsys_version = 1000; 252 253 if (sysmon_envsys_register(&sc->sc_sysmon)) 254 printf("%s: unable to register with sysmon\n", 255 sc->sc_dev.dv_xname); 256 } 257 258 static int 259 battery_gtredata(struct sysmon_envsys *sme, struct envsys_tre_data *tred) 260 { 261 struct battery_softc *sc = sme->sme_cookie; 262 struct envsys_tre_data *cur; 263 int which = tred->sensor; 264 265 battery_update(sc, 0); 266 267 cur = &sc->sc_sdata[BAT_CPU_TEMPERATURE]; 268 cur->cur.data_s = sc->sc_cpu_temp * 1000000 + 273150000; 269 cur->validflags = ENVSYS_FVALID | ENVSYS_FCURVALID; 270 271 cur = &sc->sc_sdata[BAT_AC_PRESENT]; 272 cur->cur.data_s = (sc->sc_flags & PMU_PWR_AC_PRESENT); 273 cur->validflags = ENVSYS_FVALID | ENVSYS_FCURVALID; 274 275 cur = &sc->sc_sdata[BAT_PRESENT]; 276 cur->cur.data_s = (sc->sc_flags & PMU_PWR_BATT_PRESENT); 277 cur->validflags = ENVSYS_FVALID | ENVSYS_FCURVALID; 278 279 cur = &sc->sc_sdata[BAT_VOLTAGE]; 280 cur->cur.data_s = sc->sc_voltage * 1000; 281 cur->validflags = ENVSYS_FVALID | ENVSYS_FCURVALID; 282 283 cur = &sc->sc_sdata[BAT_CURRENT]; 284 cur->cur.data_s = sc->sc_current * 1000; 285 cur->validflags = ENVSYS_FVALID | ENVSYS_FCURVALID; 286 287 cur = &sc->sc_sdata[BAT_CHARGE]; 288 cur->cur.data_s = sc->sc_charge; 289 cur->validflags = ENVSYS_FVALID | ENVSYS_FCURVALID; 290 291 cur = &sc->sc_sdata[BAT_MAX_CHARGE]; 292 cur->cur.data_s = 100; 293 cur->validflags = ENVSYS_FVALID | ENVSYS_FCURVALID; 294 295 cur = &sc->sc_sdata[BAT_TEMPERATURE]; 296 cur->cur.data_s = sc->sc_bat_temp * 1000000 + 273150000; 297 cur->validflags = ENVSYS_FVALID | ENVSYS_FCURVALID; 298 299 cur = &sc->sc_sdata[BAT_CHARGING]; 300 cur->cur.data_s = (sc->sc_flags & PMU_PWR_BATT_CHARGING); 301 cur->validflags = ENVSYS_FVALID | ENVSYS_FCURVALID; 302 303 cur = &sc->sc_sdata[BAT_DISCHARGING]; 304 cur->cur.data_s = (!(sc->sc_flags & PMU_PWR_BATT_CHARGING)) && 305 (!(sc->sc_flags & PMU_PWR_AC_PRESENT)); 306 cur->validflags = ENVSYS_FVALID | ENVSYS_FCURVALID; 307 308 cur = &sc->sc_sdata[BAT_FULL]; 309 cur->cur.data_s = (sc->sc_flags & PMU_PWR_BATT_FULL); 310 cur->validflags = ENVSYS_FVALID | ENVSYS_FCURVALID; 311 312 memcpy(tred, &sc->sc_sdata[which], sizeof(struct envsys_tre_data)); 313 return 0; 314 } 315 316 static int 317 battery_streinfo(struct sysmon_envsys *sme, struct envsys_basic_info *binfo) 318 { 319 320 /* XXX Not implemented */ 321 binfo->validflags = 0; 322 323 return 0; 324 } 325
Indexes created Sun Oct 19 18:09:56 GMT 2025