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.
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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 82acpi_capm_convert_battstate(struct acpi_battinfo *battp) 83{ 84 int state; 85 86 state = 0xff; /* XXX unknown */ 87 88 if (battp->state & ACPI_BATT_STAT_DISCHARG) { 89 if (battp->cap >= 50) { 90 state = 0; /* high */ 91 } else { 92 state = 1; /* low */ 93 } 94 } 95 if (battp->state & ACPI_BATT_STAT_CRITICAL) { 96 state = 2; /* critical */ 97 } 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 } 120 if (battp->state & ACPI_BATT_STAT_CHARGING) { 121 flags |= APM_BATT_CHARGING; 122 } 123 if (battp->state == ACPI_BATT_STAT_NOT_PRESENT) { 124 flags = APM_BATT_NOT_PRESENT; 125 } 126 127 return (flags); 128} 129 130static int 131acpi_capm_get_info(apm_info_t aip) 132{ 133 int acline; 134 struct acpi_battinfo batt; 135 136 aip->ai_infoversion = 1; 137 aip->ai_major = 1; 138 aip->ai_minor = 2; 139 aip->ai_status = apm_softc.active; 140 aip->ai_capabilities= 0xff00; /* XXX unknown */ 141 142 if (acpi_acad_get_acline(&acline)) { 143 aip->ai_acline = 0xff; /* unknown */ 144 } else { 145 aip->ai_acline = acline; /* on/off */ 146 } 147 148 if (acpi_battery_get_battinfo(-1, &batt)) { 149 aip->ai_batt_stat = 0xff; /* unknown */ 150 aip->ai_batt_life = 0xff; /* unknown */ 151 aip->ai_batt_time = -1; /* unknown */ 152 aip->ai_batteries = 0; 153 } else { 154 aip->ai_batt_stat = acpi_capm_convert_battstate(&batt); 155 aip->ai_batt_life = batt.cap; 156 aip->ai_batt_time = (batt.min == -1) ? -1 : batt.min * 60; 157 aip->ai_batteries = acpi_battery_get_units(); 158 } 159 160 return (0); 161} 162 163static int 164acpi_capm_get_pwstatus(apm_pwstatus_t app) 165{ 166 int batt_unit; 167 int acline; 168 struct acpi_battinfo batt; 169 170 if (app->ap_device != PMDV_ALLDEV && 171 (app->ap_device < PMDV_BATT0 || app->ap_device > PMDV_BATT_ALL)) { 172 return (1); 173 } 174 175 if (app->ap_device == PMDV_ALLDEV) { 176 batt_unit = -1; /* all units */ 177 } else { 178 batt_unit = app->ap_device - PMDV_BATT0; 179 } 180 181 if (acpi_battery_get_battinfo(batt_unit, &batt)) { 182 return (1); 183 } 184 185 app->ap_batt_stat = acpi_capm_convert_battstate(&batt); 186 app->ap_batt_flag = acpi_capm_convert_battflags(&batt); 187 app->ap_batt_life = batt.cap; 188 app->ap_batt_time = (batt.min == -1) ? -1 : batt.min * 60; 189 190 if (acpi_acad_get_acline(&acline)) { 191 app->ap_acline = 0xff; /* unknown */ 192 } else { 193 app->ap_acline = acline; /* on/off */ 194 } 195 196 return (0); 197} 198 199static int 200apmopen(dev_t dev, int flag, int fmt, d_thread_t *td) 201{ 202 return (0); 203} 204 205static int 206apmclose(dev_t dev, int flag, int fmt, d_thread_t *td) 207{ 208 return (0); 209} 210 211static int 212apmioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, d_thread_t *td) 213{ 214 int error = 0; 215 struct acpi_softc *acpi_sc; 216 struct apm_info info; 217 apm_info_old_t aiop; 218 219 if ((acpi_sc = device_get_softc(acpi_dev)) == NULL) { 220 return (ENXIO); 221 } 222 223 switch (cmd) { 224 case APMIO_SUSPEND: 225 if (!(flag & FWRITE)) 226 return (EPERM); 227 if (apm_softc.active) 228 acpi_SetSleepState(acpi_sc, acpi_sc->acpi_suspend_sx); 229 else 230 error = EINVAL; 231 break; 232 233 case APMIO_STANDBY: 234 if (!(flag & FWRITE)) 235 return (EPERM); 236 if (apm_softc.active) 237 acpi_SetSleepState(acpi_sc, acpi_sc->acpi_standby_sx); 238 else 239 error = EINVAL; 240 break; 241 242 case APMIO_GETINFO_OLD: 243 if (acpi_capm_get_info(&info)) 244 error = ENXIO; 245 aiop = (apm_info_old_t)addr; 246 aiop->ai_major = info.ai_major; 247 aiop->ai_minor = info.ai_minor; 248 aiop->ai_acline = info.ai_acline; 249 aiop->ai_batt_stat = info.ai_batt_stat; 250 aiop->ai_batt_life = info.ai_batt_life; 251 aiop->ai_status = info.ai_status; 252 break; 253 254 case APMIO_GETINFO: 255 if (acpi_capm_get_info((apm_info_t)addr)) 256 error = ENXIO; 257 258 break; 259 260 case APMIO_GETPWSTATUS: 261 if (acpi_capm_get_pwstatus((apm_pwstatus_t)addr)) 262 error = ENXIO; 263 break; 264 265 case APMIO_ENABLE: 266 if (!(flag & FWRITE)) 267 return (EPERM); 268 apm_softc.active = 1; 269 break; 270 271 case APMIO_DISABLE: 272 if (!(flag & FWRITE)) 273 return (EPERM); 274 apm_softc.active = 0; 275 break; 276 277 case APMIO_HALTCPU: 278 break; 279 280 case APMIO_NOTHALTCPU: 281 break; 282 283 case APMIO_DISPLAY: 284 if (!(flag & FWRITE)) 285 return (EPERM); 286 break; 287 288 case APMIO_BIOS: 289 if (!(flag & FWRITE)) 290 return (EPERM); 291 bzero(addr, sizeof(struct apm_bios_arg)); 292 break; 293 294 default: 295 error = EINVAL; 296 break; 297 } 298 299 return (error); 300} 301 302static int 303apmwrite(dev_t dev, struct uio *uio, int ioflag) 304{ 305 306 return (uio->uio_resid); 307} 308 309static int 310apmpoll(dev_t dev, int events, d_thread_t *td) 311{ 312 return (0); 313} 314 315static void 316acpi_capm_init(struct acpi_softc *sc) 317{ 318 319 make_dev(&apm_cdevsw, 0, 0, 5, 0664, "apm"); 320} 321 322int 323acpi_machdep_init(device_t dev) 324{ 325 struct acpi_softc *sc; 326 327 acpi_dev = dev; 328 if ((sc = device_get_softc(acpi_dev)) == NULL) { 329 return (ENXIO); 330 } 331 332 /* 333 * XXX: Prevent the PnP BIOS code from interfering with 334 * our own scan of ISA devices. 335 */ 336 PnPBIOStable = NULL; 337 338 acpi_capm_init(sc); 339 340 acpi_install_wakeup_handler(sc); 341 342#ifdef SMP 343 acpi_SetIntrModel(ACPI_INTR_APIC); 344#endif 345 return (0); 346} 347
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