acpi_machdep.c revision 159409
1169689Skan/*- 2169689Skan * Copyright (c) 2001 Mitsuru IWASAKI 3132718Skan * All rights reserved. 4132718Skan * 5132718Skan * Redistribution and use in source and binary forms, with or without 6132718Skan * modification, are permitted provided that the following conditions 7132718Skan * are met: 8132718Skan * 1. Redistributions of source code must retain the above copyright 9132718Skan * notice, this list of conditions and the following disclaimer. 10132718Skan * 2. Redistributions in binary form must reproduce the above copyright 11132718Skan * notice, this list of conditions and the following disclaimer in the 12132718Skan * documentation and/or other materials provided with the distribution. 13132718Skan * 14132718Skan * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15132718Skan * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16132718Skan * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17132718Skan * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18132718Skan * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19169689Skan * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20169689Skan * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21132718Skan * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22169689Skan * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23169689Skan * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24169689Skan * SUCH DAMAGE. 25169689Skan */ 26169689Skan 27169689Skan#include <sys/cdefs.h> 28169689Skan__FBSDID("$FreeBSD: head/sys/i386/acpica/acpi_machdep.c 159409 2006-06-08 17:54:10Z njl $"); 29169689Skan 30169689Skan#include <sys/param.h> 31169689Skan#include <sys/bus.h> 32169689Skan#include <sys/conf.h> 33169689Skan#include <sys/fcntl.h> 34169689Skan#include <sys/kernel.h> 35169689Skan#include <sys/sysctl.h> 36169689Skan#include <sys/uio.h> 37169689Skan#include <vm/vm.h> 38169689Skan#include <vm/pmap.h> 39169689Skan 40169689Skan#include <contrib/dev/acpica/acpi.h> 41169689Skan#include <dev/acpica/acpivar.h> 42169689Skan#include <dev/acpica/acpiio.h> 43169689Skan 44169689Skan/* 45169689Skan * APM driver emulation 46169689Skan */ 47169689Skan 48169689Skan#include <sys/selinfo.h> 49169689Skan 50169689Skan#include <machine/apm_bios.h> 51169689Skan#include <machine/pc/bios.h> 52169689Skan 53169689Skan#include <i386/bios/apm.h> 54169689Skan 55169689Skanuint32_t acpi_resume_beep; 56169689SkanTUNABLE_INT("hw.acpi.resume_beep", &acpi_resume_beep); 57169689Skanuint32_t acpi_reset_video; 58169689SkanTUNABLE_INT("hw.acpi.reset_video", &acpi_reset_video); 59169689Skan 60169689Skanstatic int intr_model = ACPI_INTR_PIC; 61169689Skanstatic int apm_active; 62169689Skan 63169689Skanstatic d_open_t apmopen; 64169689Skanstatic d_close_t apmclose; 65169689Skanstatic d_write_t apmwrite; 66169689Skanstatic d_ioctl_t apmioctl; 67169689Skanstatic d_poll_t apmpoll; 68169689Skan 69169689Skanstatic struct cdevsw apm_cdevsw = { 70169689Skan .d_version = D_VERSION, 71169689Skan .d_open = apmopen, 72169689Skan .d_close = apmclose, 73169689Skan .d_write = apmwrite, 74169689Skan .d_ioctl = apmioctl, 75169689Skan .d_poll = apmpoll, 76169689Skan .d_name = "apm", 77169689Skan}; 78169689Skan 79169689Skanstatic int 80169689Skanacpi_capm_convert_battstate(struct acpi_battinfo *battp) 81169689Skan{ 82169689Skan int state; 83169689Skan 84169689Skan state = APM_UNKNOWN; 85169689Skan 86169689Skan if (battp->state & ACPI_BATT_STAT_DISCHARG) { 87169689Skan if (battp->cap >= 50) 88169689Skan state = 0; /* high */ 89169689Skan else 90169689Skan state = 1; /* low */ 91169689Skan } 92169689Skan if (battp->state & ACPI_BATT_STAT_CRITICAL) 93169689Skan state = 2; /* critical */ 94169689Skan if (battp->state & ACPI_BATT_STAT_CHARGING) 95169689Skan state = 3; /* charging */ 96169689Skan 97169689Skan /* If still unknown, determine it based on the battery capacity. */ 98169689Skan if (state == APM_UNKNOWN) { 99169689Skan if (battp->cap >= 50) 100169689Skan state = 0; /* high */ 101169689Skan else 102169689Skan state = 1; /* low */ 103169689Skan } 104169689Skan 105169689Skan return (state); 106169689Skan} 107169689Skan 108169689Skanstatic int 109169689Skanacpi_capm_convert_battflags(struct acpi_battinfo *battp) 110169689Skan{ 111169689Skan int flags; 112169689Skan 113169689Skan flags = 0; 114169689Skan 115169689Skan if (battp->cap >= 50) 116169689Skan flags |= APM_BATT_HIGH; 117169689Skan else { 118169689Skan if (battp->state & ACPI_BATT_STAT_CRITICAL) 119169689Skan flags |= APM_BATT_CRITICAL; 120169689Skan else 121169689Skan flags |= APM_BATT_LOW; 122169689Skan } 123169689Skan if (battp->state & ACPI_BATT_STAT_CHARGING) 124169689Skan flags |= APM_BATT_CHARGING; 125169689Skan if (battp->state == ACPI_BATT_STAT_NOT_PRESENT) 126169689Skan flags = APM_BATT_NOT_PRESENT; 127169689Skan 128169689Skan return (flags); 129169689Skan} 130169689Skan 131169689Skanstatic int 132169689Skanacpi_capm_get_info(apm_info_t aip) 133169689Skan{ 134169689Skan int acline; 135169689Skan struct acpi_battinfo batt; 136169689Skan 137169689Skan aip->ai_infoversion = 1; 138169689Skan aip->ai_major = 1; 139169689Skan aip->ai_minor = 2; 140169689Skan aip->ai_status = apm_active; 141169689Skan aip->ai_capabilities= 0xff00; /* unknown */ 142132718Skan 143132718Skan if (acpi_acad_get_acline(&acline)) 144132718Skan aip->ai_acline = APM_UNKNOWN; /* unknown */ 145132718Skan else 146132718Skan aip->ai_acline = acline; /* on/off */ 147169689Skan 148169689Skan if (acpi_battery_get_battinfo(NULL, &batt) != 0) { 149132718Skan aip->ai_batt_stat = APM_UNKNOWN; 150132718Skan aip->ai_batt_life = APM_UNKNOWN; 151169689Skan aip->ai_batt_time = -1; /* unknown */ 152132718Skan aip->ai_batteries = ~0U; /* unknown */ 153132718Skan } else { 154132718Skan aip->ai_batt_stat = acpi_capm_convert_battstate(&batt); 155132718Skan aip->ai_batt_life = batt.cap; 156132718Skan aip->ai_batt_time = (batt.min == -1) ? -1 : batt.min * 60; 157132718Skan aip->ai_batteries = acpi_battery_get_units(); 158132718Skan } 159132718Skan 160132718Skan return (0); 161132718Skan} 162132718Skan 163132718Skanstatic int 164132718Skanacpi_capm_get_pwstatus(apm_pwstatus_t app) 165169689Skan{ 166169689Skan device_t dev; 167169689Skan int acline, unit, error; 168169689Skan struct acpi_battinfo batt; 169132718Skan 170132718Skan if (app->ap_device != PMDV_ALLDEV && 171132718Skan (app->ap_device < PMDV_BATT0 || app->ap_device > PMDV_BATT_ALL)) 172132718Skan return (1); 173169689Skan 174169689Skan if (app->ap_device == PMDV_ALLDEV) 175169689Skan error = acpi_battery_get_battinfo(NULL, &batt); 176132718Skan else { 177169689Skan unit = app->ap_device - PMDV_BATT0; 178169689Skan dev = devclass_get_device(devclass_find("battery"), unit); 179132718Skan if (dev != NULL) 180169689Skan error = acpi_battery_get_battinfo(dev, &batt); 181132718Skan else 182132718Skan error = ENXIO; 183169689Skan } 184169689Skan if (error) 185132718Skan return (1); 186169689Skan 187169689Skan app->ap_batt_stat = acpi_capm_convert_battstate(&batt); 188132718Skan app->ap_batt_flag = acpi_capm_convert_battflags(&batt); 189132718Skan app->ap_batt_life = batt.cap; 190132718Skan app->ap_batt_time = (batt.min == -1) ? -1 : batt.min * 60; 191132718Skan 192132718Skan if (acpi_acad_get_acline(&acline)) 193132718Skan app->ap_acline = APM_UNKNOWN; 194132718Skan else 195132718Skan app->ap_acline = acline; /* on/off */ 196169689Skan 197169689Skan return (0); 198169689Skan} 199169689Skan 200169689Skanstatic int 201169689Skanapmopen(struct cdev *dev, int flag, int fmt, d_thread_t *td) 202169689Skan{ 203169689Skan return (0); 204169689Skan} 205169689Skan 206169689Skanstatic int 207169689Skanapmclose(struct cdev *dev, int flag, int fmt, d_thread_t *td) 208169689Skan{ 209169689Skan return (0); 210169689Skan} 211169689Skan 212169689Skanstatic int 213169689Skanapmioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, d_thread_t *td) 214169689Skan{ 215169689Skan int error = 0; 216169689Skan struct acpi_softc *acpi_sc; 217169689Skan struct apm_info info; 218132718Skan apm_info_old_t aiop; 219132718Skan 220132718Skan acpi_sc = devclass_get_softc(devclass_find("acpi"), 0); 221132718Skan 222132718Skan switch (cmd) { 223132718Skan case APMIO_SUSPEND: 224132718Skan if ((flag & FWRITE) == 0) 225169689Skan return (EPERM); 226169689Skan if (apm_active) 227169689Skan acpi_SetSleepState(acpi_sc, acpi_sc->acpi_suspend_sx); 228169689Skan else 229169689Skan error = EINVAL; 230169689Skan break; 231169689Skan case APMIO_STANDBY: 232169689Skan if ((flag & FWRITE) == 0) 233169689Skan return (EPERM); 234169689Skan if (apm_active) 235169689Skan acpi_SetSleepState(acpi_sc, acpi_sc->acpi_standby_sx); 236169689Skan else 237169689Skan error = EINVAL; 238132718Skan break; 239132718Skan case APMIO_GETINFO_OLD: 240132718Skan if (acpi_capm_get_info(&info)) 241132718Skan error = ENXIO; 242132718Skan aiop = (apm_info_old_t)addr; 243132718Skan aiop->ai_major = info.ai_major; 244132718Skan aiop->ai_minor = info.ai_minor; 245132718Skan aiop->ai_acline = info.ai_acline; 246132718Skan aiop->ai_batt_stat = info.ai_batt_stat; 247132718Skan aiop->ai_batt_life = info.ai_batt_life; 248132718Skan aiop->ai_status = info.ai_status; 249132718Skan break; 250132718Skan case APMIO_GETINFO: 251132718Skan if (acpi_capm_get_info((apm_info_t)addr)) 252132718Skan error = ENXIO; 253132718Skan break; 254169689Skan case APMIO_GETPWSTATUS: 255169689Skan if (acpi_capm_get_pwstatus((apm_pwstatus_t)addr)) 256169689Skan error = ENXIO; 257169689Skan break; 258169689Skan case APMIO_ENABLE: 259169689Skan if ((flag & FWRITE) == 0) 260132718Skan return (EPERM); 261132718Skan apm_active = 1; 262132718Skan break; 263132718Skan case APMIO_DISABLE: 264132718Skan if ((flag & FWRITE) == 0) 265132718Skan return (EPERM); 266132718Skan apm_active = 0; 267169689Skan break; 268169689Skan case APMIO_HALTCPU: 269132718Skan break; 270132718Skan case APMIO_NOTHALTCPU: 271132718Skan break; 272132718Skan case APMIO_DISPLAY: 273132718Skan if ((flag & FWRITE) == 0) 274169689Skan return (EPERM); 275169689Skan break; 276169689Skan case APMIO_BIOS: 277169689Skan if ((flag & FWRITE) == 0) 278169689Skan return (EPERM); 279169689Skan bzero(addr, sizeof(struct apm_bios_arg)); 280169689Skan break; 281169689Skan default: 282169689Skan error = EINVAL; 283169689Skan break; 284169689Skan } 285169689Skan 286169689Skan return (error); 287169689Skan} 288169689Skan 289169689Skanstatic int 290169689Skanapmwrite(struct cdev *dev, struct uio *uio, int ioflag) 291169689Skan{ 292169689Skan return (uio->uio_resid); 293169689Skan} 294169689Skan 295169689Skanstatic int 296169689Skanapmpoll(struct cdev *dev, int events, d_thread_t *td) 297169689Skan{ 298169689Skan return (0); 299169689Skan} 300169689Skan 301169689Skanstatic void 302169689Skanacpi_capm_init(struct acpi_softc *sc) 303169689Skan{ 304169689Skan make_dev(&apm_cdevsw, 0, 0, 5, 0664, "apm"); 305169689Skan} 306169689Skan 307169689Skanint 308169689Skanacpi_machdep_init(device_t dev) 309169689Skan{ 310169689Skan struct acpi_softc *sc; 311169689Skan 312169689Skan sc = devclass_get_softc(devclass_find("acpi"), 0); 313169689Skan acpi_capm_init(sc); 314169689Skan 315169689Skan acpi_install_wakeup_handler(sc); 316169689Skan 317169689Skan if (intr_model == ACPI_INTR_PIC) 318169689Skan BUS_CONFIG_INTR(dev, AcpiGbl_FADT->SciInt, INTR_TRIGGER_LEVEL, 319169689Skan INTR_POLARITY_LOW); 320169689Skan else 321169689Skan acpi_SetIntrModel(intr_model); 322169689Skan 323169689Skan SYSCTL_ADD_UINT(&sc->acpi_sysctl_ctx, 324169689Skan SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO, 325169689Skan "resume_beep", CTLFLAG_RD | CTLFLAG_RW, &acpi_resume_beep, 0, 326169689Skan "Beep the PC speaker when resuming"); 327169689Skan SYSCTL_ADD_UINT(&sc->acpi_sysctl_ctx, 328169689Skan SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO, 329169689Skan "reset_video", CTLFLAG_RD | CTLFLAG_RW, &acpi_reset_video, 0, 330169689Skan "Call the VESA reset BIOS vector on the resume path"); 331169689Skan 332169689Skan return (0); 333169689Skan} 334169689Skan 335169689Skanvoid 336169689Skanacpi_SetDefaultIntrModel(int model) 337169689Skan{ 338169689Skan 339169689Skan intr_model = model; 340169689Skan} 341169689Skan 342169689Skan/* Check BIOS date. If 1998 or older, disable ACPI. */ 343169689Skanint 344169689Skanacpi_machdep_quirks(int *quirks) 345169689Skan{ 346169689Skan char *va; 347169689Skan int year; 348169689Skan 349169689Skan /* BIOS address 0xffff5 contains the date in the format mm/dd/yy. */ 350169689Skan va = pmap_mapdev(0xffff0, 16); 351132718Skan sscanf(va + 11, "%2d", &year); 352132718Skan pmap_unmapdev((vm_offset_t)va, 16); 353132718Skan 354132718Skan /* 355132718Skan * Date must be >= 1/1/1999 or we don't trust ACPI. Note that this 356132718Skan * check must be changed by my 114th birthday. 357132718Skan */ 358132718Skan if (year > 90 && year < 99) 359132718Skan *quirks = ACPI_Q_BROKEN; 360132718Skan 361132718Skan return (0); 362169689Skan} 363169689Skan 364132718Skanvoid 365132718Skanacpi_cpu_c1() 366132718Skan{ 367132718Skan __asm __volatile("sti; hlt"); 368132718Skan} 369169689Skan