diff options
Diffstat (limited to 'sys/dev/acpica/acpi_button.c')
| -rw-r--r-- | sys/dev/acpica/acpi_button.c | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/sys/dev/acpica/acpi_button.c b/sys/dev/acpica/acpi_button.c new file mode 100644 index 0000000..a4bebc2 --- /dev/null +++ b/sys/dev/acpica/acpi_button.c @@ -0,0 +1,224 @@ +/*- + * Copyright (c) 2000 Mitsaru IWASAKI <iwasaki@jp.freebsd.org> + * Copyright (c) 2000 Michael Smith <msmith@freebsd.org> + * Copyright (c) 2000 BSDi + * 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. + * + * $FreeBSD$ + */ + +#include "opt_acpi.h" +#include <sys/param.h> +#include <sys/kernel.h> +#include <sys/bus.h> + +#include "acpi.h" + +#include <dev/acpica/acpivar.h> + +/* + * Hooks for the ACPI CA debugging infrastructure + */ +#define _COMPONENT ACPI_BUTTON +ACPI_MODULE_NAME("BUTTON") + +struct acpi_button_softc { + device_t button_dev; + ACPI_HANDLE button_handle; +#define ACPI_POWER_BUTTON 0 +#define ACPI_SLEEP_BUTTON 1 + boolean_t button_type; /* Power or Sleep Button */ +}; + +static int acpi_button_probe(device_t dev); +static int acpi_button_attach(device_t dev); +static int acpi_button_suspend(device_t dev); +static int acpi_button_resume(device_t dev); +static void acpi_button_notify_handler(ACPI_HANDLE h,UINT32 notify, void *context); +static void acpi_button_notify_pressed_for_sleep(void *arg); +static void acpi_button_notify_pressed_for_wakeup(void *arg); + +static device_method_t acpi_button_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, acpi_button_probe), + DEVMETHOD(device_attach, acpi_button_attach), + DEVMETHOD(device_suspend, acpi_button_suspend), + DEVMETHOD(device_resume, acpi_button_resume), + + {0, 0} +}; + +static driver_t acpi_button_driver = { + "acpi_button", + acpi_button_methods, + sizeof(struct acpi_button_softc), +}; + +static devclass_t acpi_button_devclass; +DRIVER_MODULE(acpi_button, acpi, acpi_button_driver, acpi_button_devclass, 0, 0); + +static int +acpi_button_probe(device_t dev) +{ + struct acpi_button_softc *sc; + + sc = device_get_softc(dev); + if (acpi_get_type(dev) == ACPI_TYPE_DEVICE) { + if (!acpi_disabled("button")) { + if (acpi_MatchHid(dev, "PNP0C0C")) { + device_set_desc(dev, "Power Button"); + sc->button_type = ACPI_POWER_BUTTON; + return(0); + } + if (acpi_MatchHid(dev, "PNP0C0E")) { + device_set_desc(dev, "Sleep Button"); + sc->button_type = ACPI_SLEEP_BUTTON; + return(0); + } + } + } + return(ENXIO); +} + +static int +acpi_button_attach(device_t dev) +{ + struct acpi_button_softc *sc; + ACPI_STATUS status; + + ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); + + sc = device_get_softc(dev); + sc->button_dev = dev; + sc->button_handle = acpi_get_handle(dev); + + if (ACPI_FAILURE(status = AcpiInstallNotifyHandler(sc->button_handle, ACPI_DEVICE_NOTIFY, + acpi_button_notify_handler, sc))) { + device_printf(sc->button_dev, "couldn't install Notify handler - %s\n", AcpiFormatException(status)); + return_VALUE(ENXIO); + } + acpi_device_enable_wake_capability(sc->button_handle, 1); + return_VALUE(0); +} + +static int +acpi_button_suspend(device_t dev) +{ + struct acpi_button_softc *sc; + + sc = device_get_softc(dev); + acpi_device_enable_wake_event(sc->button_handle); + return (0); +} + +static int +acpi_button_resume(device_t dev) +{ + + return (0); +} + +static void +acpi_button_notify_pressed_for_sleep(void *arg) +{ + struct acpi_button_softc *sc; + struct acpi_softc *acpi_sc; + + ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); + + sc = (struct acpi_button_softc *)arg; + acpi_sc = acpi_device_get_parent_softc(sc->button_dev); + if (acpi_sc == NULL) { + return_VOID; + } + + switch (sc->button_type) { + case ACPI_POWER_BUTTON: + ACPI_VPRINT(sc->button_dev, acpi_sc, "power button pressed\n"); + acpi_eventhandler_power_button_for_sleep((void *)acpi_sc); + break; + case ACPI_SLEEP_BUTTON: + ACPI_VPRINT(sc->button_dev, acpi_sc, "sleep button pressed\n"); + acpi_eventhandler_sleep_button_for_sleep((void *)acpi_sc); + break; + default: + break; /* unknown button type */ + } + return_VOID; +} + +static void +acpi_button_notify_pressed_for_wakeup(void *arg) +{ + struct acpi_button_softc *sc; + struct acpi_softc *acpi_sc; + + ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); + + sc = (struct acpi_button_softc *)arg; + acpi_sc = acpi_device_get_parent_softc(sc->button_dev); + if (acpi_sc == NULL) { + return_VOID; + } + + switch (sc->button_type) { + case ACPI_POWER_BUTTON: + ACPI_VPRINT(sc->button_dev, acpi_sc, "wakeup by power button\n"); + acpi_eventhandler_power_button_for_wakeup((void *)acpi_sc); + break; + case ACPI_SLEEP_BUTTON: + ACPI_VPRINT(sc->button_dev, acpi_sc, "wakeup by sleep button\n"); + acpi_eventhandler_sleep_button_for_wakeup((void *)acpi_sc); + break; + default: + break; /* unknown button type */ + } + return_VOID; +} + +/* XXX maybe not here */ +#define ACPI_NOTIFY_BUTTON_PRESSED_FOR_SLEEP 0x80 +#define ACPI_NOTIFY_BUTTON_PRESSED_FOR_WAKEUP 0x02 + +static void +acpi_button_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context) +{ + struct acpi_button_softc *sc = (struct acpi_button_softc *)context; + + ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify); + + switch (notify) { + case ACPI_NOTIFY_BUTTON_PRESSED_FOR_SLEEP: + AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_button_notify_pressed_for_sleep, sc); + break; + case ACPI_NOTIFY_BUTTON_PRESSED_FOR_WAKEUP: + AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_button_notify_pressed_for_wakeup, sc); + break; + default: + break; /* unknown notification value */ + } + return_VOID; +} + + |
