/*- * SPDX-License-Identifier: BSD-2-Clause * * 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 #include #include #include #include #include #include #include #include #include /* * APM driver emulation */ #define APM_UNKNOWN 0xff static int apm_active; static MALLOC_DEFINE(M_APMDEV, "apmdev", "APM device emulation"); static d_ioctl_t apmioctl; static struct cdevsw apm_cdevsw = { .d_version = D_VERSION, .d_ioctl = apmioctl, .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 = 1; /* no info -- on-line best guess */ else aip->ai_acline = acline; /* on/off */ if (acpi_battery_get_battinfo(NULL, &batt) != 0) { aip->ai_batt_stat = 0; /* "high" old I/F has no unknown state */ aip->ai_batt_life = 255; /* N/A, not -1 */ 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 == -1) ? 255 : 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) { device_t dev; int acline, unit, error; 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) error = acpi_battery_get_battinfo(NULL, &batt); else { unit = app->ap_device - PMDV_BATT0; dev = devclass_get_device(devclass_find("battery"), unit); if (dev != NULL) error = acpi_battery_get_battinfo(dev, &batt); else error = ENXIO; } if (error) 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 == -1) ? 255 : batt.cap; app->ap_batt_time = (batt.min == -1) ? -1 : batt.min * 60; if (acpi_acad_get_acline(&acline)) app->ap_acline = 1; /* no info -- on-line best guess */ else app->ap_acline = acline; /* on/off */ return (0); } static int apmioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td) { int error; struct acpi_softc *acpi_sc = dev->si_drv1; struct apm_info info; apm_info_old_t aiop; error = 0; switch (cmd) { case APMIO_SUSPEND: if ((flag & FWRITE) == 0) return (EPERM); if (acpi_sc->acpi_next_stype == POWER_STYPE_AWAKE) { if (power_suspend_stype != POWER_STYPE_POWEROFF) { error = acpi_ReqSleepState(acpi_sc, power_suspend_stype); } else { printf( "power off via apm suspend not supported\n"); error = ENXIO; } } break; case APMIO_STANDBY: if ((flag & FWRITE) == 0) return (EPERM); if (acpi_sc->acpi_next_stype == POWER_STYPE_AWAKE) { if (power_standby_stype != POWER_STYPE_POWEROFF) { error = acpi_ReqSleepState(acpi_sc, power_standby_stype); } else { printf( "power off via apm standby not supported\n"); error = ENXIO; } } 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); return (EOPNOTSUPP); default: error = EINVAL; break; } return (error); } void acpi_apm_init(struct acpi_softc *sc) { struct make_dev_args args; struct cdev *dev; make_dev_args_init(&args); args.mda_devsw = &apm_cdevsw; args.mda_uid = UID_ROOT; args.mda_gid = GID_OPERATOR; args.mda_mode = 0664; args.mda_si_drv1 = sc; args.mda_flags = MAKEDEV_ETERNAL; make_dev_s(&args, &dev, "apm"); }