/*- * Copyright (c) 2001 Mitsuru IWASAKI * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD: head/sys/i386/acpica/acpi_machdep.c 136367 2004-10-11 05:42:12Z njl $"); #include #include #include #include #include #include #include #include #include #include "acpi.h" #include #include /* * APM driver emulation */ #include #include #include #include uint32_t acpi_reset_video = 1; TUNABLE_INT("hw.acpi.reset_video", &acpi_reset_video); static int intr_model = ACPI_INTR_PIC; static int apm_active; static d_open_t apmopen; static d_close_t apmclose; static d_write_t apmwrite; static d_ioctl_t apmioctl; static d_poll_t apmpoll; static struct cdevsw apm_cdevsw = { .d_version = D_VERSION, .d_flags = D_NEEDGIANT, .d_open = apmopen, .d_close = apmclose, .d_write = apmwrite, .d_ioctl = apmioctl, .d_poll = apmpoll, .d_name = "apm", }; static int acpi_capm_convert_battstate(struct acpi_battinfo *battp) { int state; state = APM_UNKNOWN; if (battp->state & ACPI_BATT_STAT_DISCHARG) { if (battp->cap >= 50) state = 0; /* high */ else state = 1; /* low */ } if (battp->state & ACPI_BATT_STAT_CRITICAL) state = 2; /* critical */ if (battp->state & ACPI_BATT_STAT_CHARGING) state = 3; /* charging */ /* If still unknown, determine it based on the battery capacity. */ if (state == APM_UNKNOWN) { if (battp->cap >= 50) state = 0; /* high */ else state = 1; /* low */ } return (state); } static int acpi_capm_convert_battflags(struct acpi_battinfo *battp) { int flags; flags = 0; if (battp->cap >= 50) flags |= APM_BATT_HIGH; else { if (battp->state & ACPI_BATT_STAT_CRITICAL) flags |= APM_BATT_CRITICAL; else flags |= APM_BATT_LOW; } if (battp->state & ACPI_BATT_STAT_CHARGING) flags |= APM_BATT_CHARGING; if (battp->state == ACPI_BATT_STAT_NOT_PRESENT) flags = APM_BATT_NOT_PRESENT; return (flags); } static int acpi_capm_get_info(apm_info_t aip) { int acline; struct acpi_battinfo batt; aip->ai_infoversion = 1; aip->ai_major = 1; aip->ai_minor = 2; aip->ai_status = apm_active; aip->ai_capabilities= 0xff00; /* unknown */ if (acpi_acad_get_acline(&acline)) aip->ai_acline = APM_UNKNOWN; /* unknown */ else aip->ai_acline = acline; /* on/off */ if (acpi_battery_get_battinfo(-1, &batt)) { aip->ai_batt_stat = APM_UNKNOWN; aip->ai_batt_life = APM_UNKNOWN; aip->ai_batt_time = -1; /* unknown */ aip->ai_batteries = ~0U; /* unknown */ } else { aip->ai_batt_stat = acpi_capm_convert_battstate(&batt); aip->ai_batt_life = batt.cap; aip->ai_batt_time = (batt.min == -1) ? -1 : batt.min * 60; aip->ai_batteries = acpi_battery_get_units(); } return (0); } static int acpi_capm_get_pwstatus(apm_pwstatus_t app) { int batt_unit; int acline; struct acpi_battinfo batt; if (app->ap_device != PMDV_ALLDEV && (app->ap_device < PMDV_BATT0 || app->ap_device > PMDV_BATT_ALL)) return (1); if (app->ap_device == PMDV_ALLDEV) batt_unit = -1; /* all units */ else batt_unit = app->ap_device - PMDV_BATT0; if (acpi_battery_get_battinfo(batt_unit, &batt)) return (1); app->ap_batt_stat = acpi_capm_convert_battstate(&batt); app->ap_batt_flag = acpi_capm_convert_battflags(&batt); app->ap_batt_life = batt.cap; app->ap_batt_time = (batt.min == -1) ? -1 : batt.min * 60; if (acpi_acad_get_acline(&acline)) app->ap_acline = APM_UNKNOWN; else app->ap_acline = acline; /* on/off */ return (0); } static int apmopen(struct cdev *dev, int flag, int fmt, d_thread_t *td) { return (0); } static int apmclose(struct cdev *dev, int flag, int fmt, d_thread_t *td) { return (0); } static int apmioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, d_thread_t *td) { int error = 0; struct acpi_softc *acpi_sc; struct apm_info info; apm_info_old_t aiop; acpi_sc = devclass_get_softc(devclass_find("acpi"), 0); switch (cmd) { case APMIO_SUSPEND: if ((flag & FWRITE) == 0) return (EPERM); if (apm_active) acpi_SetSleepState(acpi_sc, acpi_sc->acpi_suspend_sx); else error = EINVAL; break; case APMIO_STANDBY: if ((flag & FWRITE) == 0) return (EPERM); if (apm_active) acpi_SetSleepState(acpi_sc, acpi_sc->acpi_standby_sx); else error = EINVAL; break; case APMIO_GETINFO_OLD: if (acpi_capm_get_info(&info)) error = ENXIO; aiop = (apm_info_old_t)addr; aiop->ai_major = info.ai_major; aiop->ai_minor = info.ai_minor; aiop->ai_acline = info.ai_acline; aiop->ai_batt_stat = info.ai_batt_stat; aiop->ai_batt_life = info.ai_batt_life; aiop->ai_status = info.ai_status; break; case APMIO_GETINFO: if (acpi_capm_get_info((apm_info_t)addr)) error = ENXIO; break; case APMIO_GETPWSTATUS: if (acpi_capm_get_pwstatus((apm_pwstatus_t)addr)) error = ENXIO; break; case APMIO_ENABLE: if ((flag & FWRITE) == 0) return (EPERM); apm_active = 1; break; case APMIO_DISABLE: if ((flag & FWRITE) == 0) return (EPERM); apm_active = 0; break; case APMIO_HALTCPU: break; case APMIO_NOTHALTCPU: break; case APMIO_DISPLAY: if ((flag & FWRITE) == 0) return (EPERM); break; case APMIO_BIOS: if ((flag & FWRITE) == 0) return (EPERM); bzero(addr, sizeof(struct apm_bios_arg)); break; default: error = EINVAL; break; } return (error); } static int apmwrite(struct cdev *dev, struct uio *uio, int ioflag) { return (uio->uio_resid); } static int apmpoll(struct cdev *dev, int events, d_thread_t *td) { return (0); } static void acpi_capm_init(struct acpi_softc *sc) { make_dev(&apm_cdevsw, 0, 0, 5, 0664, "apm"); } int acpi_machdep_init(device_t dev) { struct acpi_softc *sc; sc = devclass_get_softc(devclass_find("acpi"), 0); acpi_capm_init(sc); acpi_install_wakeup_handler(sc); if (intr_model == ACPI_INTR_PIC) BUS_CONFIG_INTR(dev, AcpiGbl_FADT->SciInt, INTR_TRIGGER_LEVEL, INTR_POLARITY_LOW); else acpi_SetIntrModel(intr_model); SYSCTL_ADD_UINT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO, "reset_video", CTLFLAG_RD | CTLFLAG_RW, &acpi_reset_video, 0, "Call the VESA reset BIOS vector on the resume path"); return (0); } void acpi_SetDefaultIntrModel(int model) { intr_model = model; } /* Check BIOS date. If 1998 or older, disable ACPI. */ int acpi_machdep_quirks(int *quirks) { char *va; int year; /* BIOS address 0xffff5 contains the date in the format mm/dd/yy. */ va = pmap_mapdev(0xffff0, 16); sscanf(va + 11, "%2d", &year); pmap_unmapdev((vm_offset_t)va, 16); /* * Date must be >= 1/1/1999 or we don't trust ACPI. Note that this * check must be changed by my 114th birthday. */ if (year > 90 && year < 99) *quirks = ACPI_Q_BROKEN; return (0); } void acpi_cpu_c1() { __asm __volatile("sti; hlt"); }