/*- * Copyright (c) 2000 Takanori Watanabe * 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. * * $FreeBSD: src/sys/dev/acpica/acpi_acad.c,v 1.17.2.1 2003/08/22 20:49:20 jhb Exp $ * $DragonFly: src/sys/dev/acpica/Attic/acpi_acad.c,v 1.1 2003/09/24 03:32:16 drhodus Exp $ */ #include "opt_acpi.h" #include #include #include #include #include #include #include #include #include #include #include "acpi.h" #include #include /* * Hooks for the ACPI CA debugging infrastructure */ #define _COMPONENT ACPI_AC_ADAPTER ACPI_MODULE_NAME("AC_ADAPTER") #define ACPI_DEVICE_CHECK_PNP 0x00 #define ACPI_DEVICE_CHECK_EXISTENCE 0x01 #define ACPI_POWERSOURCE_STAT_CHANGE 0x80 static void acpi_acad_get_status(void * ); static void acpi_acad_notify_handler(ACPI_HANDLE , UINT32 ,void *); static int acpi_acad_probe(device_t); static int acpi_acad_attach(device_t); static int acpi_acad_ioctl(u_long, caddr_t, void *); static int acpi_acad_sysctl(SYSCTL_HANDLER_ARGS); static void acpi_acad_init_acline(void *arg); struct acpi_acad_softc { int status; int initializing; }; static void acpi_acad_get_status(void *context) { int newstatus; device_t dev = context; struct acpi_acad_softc *sc = device_get_softc(dev); ACPI_HANDLE h = acpi_get_handle(dev); if (ACPI_FAILURE(acpi_EvaluateInteger(h, "_PSR", &newstatus))) { sc->status = -1; return; } if (sc->status != newstatus) { sc->status = newstatus; /* set system power profile based on AC adapter status */ power_profile_set_state(sc->status ? POWER_PROFILE_PERFORMANCE : POWER_PROFILE_ECONOMY); ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev), "%s Line\n",(sc->status) ? "On" : "Off"); } } static void acpi_acad_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context) { device_t dev = context; ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev), "Notify %d\n", notify); switch (notify) { case ACPI_DEVICE_CHECK_PNP: case ACPI_DEVICE_CHECK_EXISTENCE: case ACPI_POWERSOURCE_STAT_CHANGE: /*Temporally. It is better to notify policy manager*/ AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_acad_get_status,context); break; default: break; } } static int acpi_acad_probe(device_t dev) { if ((acpi_get_type(dev) == ACPI_TYPE_DEVICE) && acpi_MatchHid(dev, "ACPI0003")) { /* * Set device description */ device_set_desc(dev, "AC adapter"); return(0); } return(ENXIO); } static int acpi_acad_attach(device_t dev) { int error; struct acpi_acad_softc *sc; struct acpi_softc *acpi_sc; ACPI_HANDLE handle = acpi_get_handle(dev); AcpiInstallNotifyHandler(handle, ACPI_DEVICE_NOTIFY, acpi_acad_notify_handler, dev); /*Installing system notify is not so good*/ AcpiInstallNotifyHandler(handle, ACPI_SYSTEM_NOTIFY, acpi_acad_notify_handler, dev); if ((sc = device_get_softc(dev)) == NULL) { return (ENXIO); } if ((error = acpi_register_ioctl(ACPIIO_ACAD_GET_STATUS, acpi_acad_ioctl, dev)) != 0) { return (error); } if (device_get_unit(dev) == 0) { acpi_sc = acpi_device_get_parent_softc(dev); SYSCTL_ADD_PROC(&acpi_sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO, "acline", CTLTYPE_INT | CTLFLAG_RD, &sc->status, 0, acpi_acad_sysctl, "I", ""); } /* Get initial status after whole system is up. */ sc->status = -1; sc->initializing = 0; AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_acad_init_acline, dev); return(0); } static device_method_t acpi_acad_methods[] = { /* Device interface */ DEVMETHOD(device_probe, acpi_acad_probe), DEVMETHOD(device_attach, acpi_acad_attach), {0, 0} }; static driver_t acpi_acad_driver = { "acpi_acad", acpi_acad_methods, sizeof(struct acpi_acad_softc), }; static devclass_t acpi_acad_devclass; DRIVER_MODULE(acpi_acad,acpi,acpi_acad_driver,acpi_acad_devclass,0,0); static int acpi_acad_ioctl(u_long cmd, caddr_t addr, void *arg) { device_t dev; struct acpi_acad_softc *sc; dev = (device_t)arg; if ((sc = device_get_softc(dev)) == NULL) { return(ENXIO); } /* * No security check required: information retrieval only. If * new functions are added here, a check might be required. */ switch (cmd) { case ACPIIO_ACAD_GET_STATUS: acpi_acad_get_status(dev); *(int *)addr = sc->status; break; } return(0); } static int acpi_acad_sysctl(SYSCTL_HANDLER_ARGS) { int val; int error; if (acpi_acad_get_acline(&val)) { return (ENXIO); } val = *(u_int *)oidp->oid_arg1; error = sysctl_handle_int(oidp, &val, 0, req); return (error); } static void acpi_acad_init_acline(void *arg) { int retry; int status; device_t dev = (device_t)arg; struct acpi_acad_softc *sc = device_get_softc(dev); #define ACPI_ACAD_RETRY_MAX 6 if (sc->initializing) { return; } sc->initializing = 1; ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev), "acline initialization start\n"); status = 0; for (retry = 0; retry < ACPI_ACAD_RETRY_MAX; retry++, AcpiOsSleep(10, 0)) { acpi_acad_get_status(dev); if (status != sc->status) break; } ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev), "acline initialization done, tried %d times\n", retry+1); sc->initializing = 0; } /* * Public interfaces. */ int acpi_acad_get_acline(int *status) { device_t dev; struct acpi_acad_softc *sc; if ((dev = devclass_get_device(acpi_acad_devclass, 0)) == NULL) { return (ENXIO); } if ((sc = device_get_softc(dev)) == NULL) { return (ENXIO); } acpi_acad_get_status(dev); *status = sc->status; return (0); }