acpi_apm.c revision 119944
1/*- 2 * Copyright (c) 2001 Mitsuru IWASAKI 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: head/sys/i386/acpica/acpi_machdep.c 119944 2003-09-10 05:29:30Z jhb $"); 29 30#include <sys/param.h> 31#include <sys/bus.h> 32#include <sys/conf.h> 33#include <sys/fcntl.h> 34#include <sys/uio.h> 35 36#include "acpi.h" 37 38#include <dev/acpica/acpivar.h> 39#include <dev/acpica/acpiio.h> 40 41static device_t acpi_dev; 42 43/* 44 * APM driver emulation 45 */ 46 47#if __FreeBSD_version < 500000 48#include <sys/select.h> 49#else 50#include <sys/selinfo.h> 51#endif 52 53#include <machine/apm_bios.h> 54#include <machine/pc/bios.h> 55 56#if __FreeBSD_version < 500000 57#include <i386/apm/apm.h> 58#else 59#include <i386/bios/apm.h> 60#endif 61 62static struct apm_softc apm_softc; 63 64static d_open_t apmopen; 65static d_close_t apmclose; 66static d_write_t apmwrite; 67static d_ioctl_t apmioctl; 68static d_poll_t apmpoll; 69 70#define CDEV_MAJOR 39 71static struct cdevsw apm_cdevsw = { 72 .d_open = apmopen, 73 .d_close = apmclose, 74 .d_write = apmwrite, 75 .d_ioctl = apmioctl, 76 .d_poll = apmpoll, 77 .d_name = "apm", 78 .d_maj = CDEV_MAJOR, 79}; 80 81static int intr_model = ACPI_INTR_PIC; 82 83static int 84acpi_capm_convert_battstate(struct acpi_battinfo *battp) 85{ 86 int state; 87 88 state = 0xff; /* XXX unknown */ 89 90 if (battp->state & ACPI_BATT_STAT_DISCHARG) { 91 if (battp->cap >= 50) 92 state = 0; /* high */ 93 else 94 state = 1; /* low */ 95 } 96 if (battp->state & ACPI_BATT_STAT_CRITICAL) 97 state = 2; /* critical */ 98 if (battp->state & ACPI_BATT_STAT_CHARGING) 99 state = 3; /* charging */ 100 101 return (state); 102} 103 104static int 105acpi_capm_convert_battflags(struct acpi_battinfo *battp) 106{ 107 int flags; 108 109 flags = 0; 110 111 if (battp->cap >= 50) { 112 flags |= APM_BATT_HIGH; 113 } else { 114 if (battp->state & ACPI_BATT_STAT_CRITICAL) 115 flags |= APM_BATT_CRITICAL; 116 else 117 flags |= APM_BATT_LOW; 118 } 119 if (battp->state & ACPI_BATT_STAT_CHARGING) 120 flags |= APM_BATT_CHARGING; 121 if (battp->state == ACPI_BATT_STAT_NOT_PRESENT) 122 flags = APM_BATT_NOT_PRESENT; 123 124 return (flags); 125} 126 127static int 128acpi_capm_get_info(apm_info_t aip) 129{ 130 int acline; 131 struct acpi_battinfo batt; 132 133 aip->ai_infoversion = 1; 134 aip->ai_major = 1; 135 aip->ai_minor = 2; 136 aip->ai_status = apm_softc.active; 137 aip->ai_capabilities= 0xff00; /* XXX unknown */ 138 139 if (acpi_acad_get_acline(&acline)) 140 aip->ai_acline = 0xff; /* unknown */ 141 else 142 aip->ai_acline = acline; /* on/off */ 143 144 if (acpi_battery_get_battinfo(-1, &batt)) { 145 aip->ai_batt_stat = 0xff; /* unknown */ 146 aip->ai_batt_life = 0xff; /* unknown */ 147 aip->ai_batt_time = -1; /* unknown */ 148 aip->ai_batteries = 0; 149 } else { 150 aip->ai_batt_stat = acpi_capm_convert_battstate(&batt); 151 aip->ai_batt_life = batt.cap; 152 aip->ai_batt_time = (batt.min == -1) ? -1 : batt.min * 60; 153 aip->ai_batteries = acpi_battery_get_units(); 154 } 155 156 return (0); 157} 158 159static int 160acpi_capm_get_pwstatus(apm_pwstatus_t app) 161{ 162 int batt_unit; 163 int acline; 164 struct acpi_battinfo batt; 165 166 if (app->ap_device != PMDV_ALLDEV && 167 (app->ap_device < PMDV_BATT0 || app->ap_device > PMDV_BATT_ALL)) { 168 return (1); 169 } 170 171 if (app->ap_device == PMDV_ALLDEV) 172 batt_unit = -1; /* all units */ 173 else 174 batt_unit = app->ap_device - PMDV_BATT0; 175 176 if (acpi_battery_get_battinfo(batt_unit, &batt)) 177 return (1); 178 179 app->ap_batt_stat = acpi_capm_convert_battstate(&batt); 180 app->ap_batt_flag = acpi_capm_convert_battflags(&batt); 181 app->ap_batt_life = batt.cap; 182 app->ap_batt_time = (batt.min == -1) ? -1 : batt.min * 60; 183 184 if (acpi_acad_get_acline(&acline)) 185 app->ap_acline = 0xff; /* unknown */ 186 else 187 app->ap_acline = acline; /* on/off */ 188 189 return (0); 190} 191 192static int 193apmopen(dev_t dev, int flag, int fmt, d_thread_t *td) 194{ 195 return (0); 196} 197 198static int 199apmclose(dev_t dev, int flag, int fmt, d_thread_t *td) 200{ 201 return (0); 202} 203 204static int 205apmioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, d_thread_t *td) 206{ 207 int error = 0; 208 struct acpi_softc *acpi_sc; 209 struct apm_info info; 210 apm_info_old_t aiop; 211 212 if ((acpi_sc = device_get_softc(acpi_dev)) == NULL) 213 return (ENXIO); 214 215 switch (cmd) { 216 case APMIO_SUSPEND: 217 if ((flag & FWRITE) == 0) 218 return (EPERM); 219 if (apm_softc.active) 220 acpi_SetSleepState(acpi_sc, acpi_sc->acpi_suspend_sx); 221 else 222 error = EINVAL; 223 break; 224 case APMIO_STANDBY: 225 if ((flag & FWRITE) == 0) 226 return (EPERM); 227 if (apm_softc.active) 228 acpi_SetSleepState(acpi_sc, acpi_sc->acpi_standby_sx); 229 else 230 error = EINVAL; 231 break; 232 case APMIO_GETINFO_OLD: 233 if (acpi_capm_get_info(&info)) 234 error = ENXIO; 235 aiop = (apm_info_old_t)addr; 236 aiop->ai_major = info.ai_major; 237 aiop->ai_minor = info.ai_minor; 238 aiop->ai_acline = info.ai_acline; 239 aiop->ai_batt_stat = info.ai_batt_stat; 240 aiop->ai_batt_life = info.ai_batt_life; 241 aiop->ai_status = info.ai_status; 242 break; 243 case APMIO_GETINFO: 244 if (acpi_capm_get_info((apm_info_t)addr)) 245 error = ENXIO; 246 break; 247 case APMIO_GETPWSTATUS: 248 if (acpi_capm_get_pwstatus((apm_pwstatus_t)addr)) 249 error = ENXIO; 250 break; 251 case APMIO_ENABLE: 252 if ((flag & FWRITE) == 0) 253 return (EPERM); 254 apm_softc.active = 1; 255 break; 256 case APMIO_DISABLE: 257 if ((flag & FWRITE) == 0) 258 return (EPERM); 259 apm_softc.active = 0; 260 break; 261 case APMIO_HALTCPU: 262 break; 263 case APMIO_NOTHALTCPU: 264 break; 265 case APMIO_DISPLAY: 266 if ((flag & FWRITE) == 0) 267 return (EPERM); 268 break; 269 case APMIO_BIOS: 270 if ((flag & FWRITE) == 0) 271 return (EPERM); 272 bzero(addr, sizeof(struct apm_bios_arg)); 273 break; 274 default: 275 error = EINVAL; 276 break; 277 } 278 279 return (error); 280} 281 282static int 283apmwrite(dev_t dev, struct uio *uio, int ioflag) 284{ 285 return (uio->uio_resid); 286} 287 288static int 289apmpoll(dev_t dev, int events, d_thread_t *td) 290{ 291 return (0); 292} 293 294static void 295acpi_capm_init(struct acpi_softc *sc) 296{ 297 make_dev(&apm_cdevsw, 0, 0, 5, 0664, "apm"); 298} 299 300int 301acpi_machdep_init(device_t dev) 302{ 303 struct acpi_softc *sc; 304 305 acpi_dev = dev; 306 if ((sc = device_get_softc(acpi_dev)) == NULL) 307 return (ENXIO); 308 309 /* 310 * XXX: Prevent the PnP BIOS code from interfering with 311 * our own scan of ISA devices. 312 */ 313 PnPBIOStable = NULL; 314 315 acpi_capm_init(sc); 316 317 acpi_install_wakeup_handler(sc); 318 319 if (intr_model != ACPI_INTR_PIC) 320 acpi_SetIntrModel(intr_model); 321 return (0); 322} 323 324void 325acpi_SetDefaultIntrModel(int model) 326{ 327 328 intr_model = model; 329} 330