704 lines
18 KiB
C
704 lines
18 KiB
C
/* $NetBSD: vald_acpi.c,v 1.5 2002/10/02 05:47:11 thorpej Exp $ */
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/*-
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Masanori Kanaoka.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright 2001 Bill Sommerfeld.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/* #define VALD_ACPI_DEBUG */
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/*
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* ACPI VALD Driver for Toshiba Libretto L3.
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* This driver is based on acpibat driver.
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*/
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/*
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* Obtain information of Toshiba "GHCI" Method from next URL.
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* http://www.buzzard.org.uk/toshiba/docs.html
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* http://memebeam.org/toys/ToshibaAcpiDriver
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: vald_acpi.c,v 1.5 2002/10/02 05:47:11 thorpej Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h> /* for hz */
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/callout.h>
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#include <dev/acpi/acpica.h>
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#include <dev/acpi/acpireg.h>
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#include <dev/acpi/acpivar.h>
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#define GHCI_WORDS 6
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#define GHCI_FIFO_EMPTY 0x8c00
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#define GHCI_NOT_SUPPORT 0x8000
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#define GHCI_BACKLIGHT 0x0002
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#define GHCI_ACADAPTOR 0x0003
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#define GHCI_FAN 0x0004
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#define GHCI_SYSTEM_EVENT_FIFO 0x0016
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#define GHCI_DISPLAY_DEVICE 0x001C
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#define GHCI_HOTKEY_EVENT 0x001E
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#define GHCI_ON 0x0001
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#define GHCI_OFF 0x0000
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#define GHCI_ENABLE 0x0001
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#define GHCI_DISABLE 0x0000
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#define GHCI_CRT 0x0002
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#define GHCI_LCD 0x0001
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struct vald_acpi_softc {
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struct device sc_dev; /* base device glue */
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struct acpi_devnode *sc_node; /* our ACPI devnode */
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int sc_flags; /* see below */
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struct callout sc_callout; /* XXX temporary polling */
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ACPI_HANDLE lcd_handle; /* lcd handle */
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int *lcd_level; /* lcd brightness table */
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int lcd_num; /* size of lcd brightness table */
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int lcd_index; /* index of lcd brightness table */
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int sc_ac_status; /* AC adaptor status when attach */
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int sc_timer; /* event timer setting */
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/* for GHCI Method */
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ACPI_OBJECT sc_Arg[GHCI_WORDS]; /* Input Arg */
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ACPI_OBJECT sc_Ret[GHCI_WORDS+1]; /* Return buffer */
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};
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#define AVALD_F_VERBOSE 0x01 /* verbose events */
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#define LIBRIGHT_HOLD 0x00
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#define LIBRIGHT_UP 0x01
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#define LIBRIGHT_DOWN 0x02
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int vald_acpi_match(struct device *, struct cfdata *, void *);
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void vald_acpi_attach(struct device *, struct device *, void *);
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void vald_acpi_event(void *);
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static void vald_acpi_tick(void *);
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ACPI_STATUS vald_acpi_ghci_get(struct vald_acpi_softc *, UINT32, UINT32 *,
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UINT32 *);
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ACPI_STATUS vald_acpi_ghci_set(struct vald_acpi_softc *, UINT32, UINT32,
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UINT32 *);
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ACPI_STATUS vald_acpi_libright_get_bus(ACPI_HANDLE, UINT32, void *,
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void **);
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void vald_acpi_libright_get(struct vald_acpi_softc *);
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void vald_acpi_libright_set(struct vald_acpi_softc *, int);
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void vald_acpi_video_switch(struct vald_acpi_softc *);
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void vald_acpi_fan_switch(struct vald_acpi_softc *);
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ACPI_STATUS vald_acpi_bcm_set(ACPI_HANDLE, UINT32);
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ACPI_STATUS vald_acpi_dssx_set(UINT32);
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CFATTACH_DECL(vald_acpi, sizeof(struct vald_acpi_softc),
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vald_acpi_match, vald_acpi_attach, NULL, NULL);
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/*
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* vald_acpi_match:
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*
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* Autoconfiguration `match' routine.
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*/
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int
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vald_acpi_match(struct device *parent, struct cfdata *match, void *aux)
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{
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struct acpi_attach_args *aa = aux;
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if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
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return (0);
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if (strcmp(aa->aa_node->ad_devinfo.HardwareId, "TOS6200") == 0)
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return (1);
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return (0);
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}
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/*
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* vald_acpi_attach:
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*
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* Autoconfiguration `attach' routine.
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*/
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void
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vald_acpi_attach(struct device *parent, struct device *self, void *aux)
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{
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struct vald_acpi_softc *sc = (void *) self;
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struct acpi_attach_args *aa = aux;
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ACPI_STATUS rv;
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UINT32 i, value, result;
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printf(": Toshiba VALD\n");
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sc->sc_node = aa->aa_node;
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sc->sc_timer = 5 * hz;
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/* Initialize input Arg */
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for (i = 0; i < GHCI_WORDS; i++) {
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sc->sc_Arg[i].Type = ACPI_TYPE_INTEGER;
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sc->sc_Arg[i].Integer.Value = 0;
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}
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/* Get AC adaptor status via _PSR. */
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rv = acpi_eval_integer(ACPI_ROOT_OBJECT,
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"\\_SB_.ADP1._PSR",&sc->sc_ac_status);
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if (rv != AE_OK)
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printf("%s: Unable to evaluate _PSR error %x\n",
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sc->sc_dev.dv_xname, rv);
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else
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printf("AC adaptor status %sconnected\n",
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(sc->sc_ac_status == 0 ? "not ": ""));
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/* Get LCD backlight status. */
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rv = vald_acpi_ghci_get(sc, GHCI_BACKLIGHT, &value, &result);
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if (rv != AE_OK)
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printf("%s: Unable to evaluate GHCI\n", sc->sc_dev.dv_xname);
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if (result != 0)
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printf("%s: Can't get status of LCD backlight error=%x\n",
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sc->sc_dev.dv_xname, result);
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else
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printf("LCD backlight status %s\n",
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((value == GHCI_ON) ? "on" : "off"));
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/* Enable SystemEventFIFO,HotkeyEvent */
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rv = vald_acpi_ghci_set(sc, GHCI_SYSTEM_EVENT_FIFO, GHCI_ENABLE,
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&result);
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if (rv != AE_OK)
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printf("%s: unable to evaluate GHCI\n", sc->sc_dev.dv_xname);
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if (result != 0)
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printf("%s: Can't enable SystemEventFIFO error=%d\n",
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sc->sc_dev.dv_xname, result);
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rv = vald_acpi_ghci_set(sc, GHCI_HOTKEY_EVENT, GHCI_ENABLE, &result);
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if (rv != AE_OK)
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printf("%s: unable to evaluate GHCI\n", sc->sc_dev.dv_xname);
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if (result != 0)
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printf("%s: Can't enable HotkeyEvent error=%d\n",
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sc->sc_dev.dv_xname, result);
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/* Check SystemFIFO events. */
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vald_acpi_event(sc);
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/*
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* XXX poll hotkey event in the driver for now.
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* in the future, when we have an API, let userland do this polling
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*/
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callout_init(&sc->sc_callout);
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callout_reset(&sc->sc_callout, sc->sc_timer, vald_acpi_tick, sc);
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/* Get LCD brightness level via _BCL. */
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vald_acpi_libright_get(sc);
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/* Set LCD brightness level via _BCM. */
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vald_acpi_libright_set(sc, LIBRIGHT_HOLD);
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}
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/*
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* vald_acpi_tick:
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*
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* Poll hotkey event.
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*/
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static void
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vald_acpi_tick(void *arg)
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{
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struct vald_acpi_softc *sc = arg;
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callout_reset(&sc->sc_callout, sc->sc_timer, vald_acpi_tick, arg);
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AcpiOsQueueForExecution(OSD_PRIORITY_LO, vald_acpi_event, sc);
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}
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/*
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* vald_acpi_event:
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*
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* Check hotkey event and do it, if event occur.
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*/
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void
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vald_acpi_event(void *arg)
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{
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struct vald_acpi_softc *sc = arg;
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ACPI_STATUS rv;
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UINT32 value, result;
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while(1) {
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rv = vald_acpi_ghci_get(sc, GHCI_SYSTEM_EVENT_FIFO, &value,
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&result);
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if ((rv == AE_OK) && (result == 0)) {
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#ifdef VALD_ACPI_DEBUG
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printf("%s: System Event %x\n", sc->sc_dev.dv_xname,
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value);
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#endif
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switch (value) {
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case 0x1c3: /* Fn + F9 */
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if (sc->sc_timer > hz/2)
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sc->sc_timer = hz/2;
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else
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sc->sc_timer = 5*hz;
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#ifdef ACPI_DEBUG
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printf("%s: Change poll time to %x\n",
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sc->sc_dev.dv_xname, sc->sc_timer);
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#endif
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break;
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case 0x1c2: /* Fn + F8 */
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vald_acpi_fan_switch(sc);
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break;
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case 0x1c1: /* Fn + F7 */
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vald_acpi_libright_set(sc, LIBRIGHT_UP);
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break;
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case 0x1c0: /* Fn + F6 */
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vald_acpi_libright_set(sc, LIBRIGHT_DOWN);
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break;
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case 0x1bf: /* Fn + F5 */
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vald_acpi_video_switch(sc);
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break;
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default:
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break;
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}
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}
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if (rv != AE_OK || result == GHCI_FIFO_EMPTY)
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break;
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}
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}
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/*
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* vald_acpi_ghci_get:
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*
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* Get value via "GHCI" Method.
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*/
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ACPI_STATUS
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vald_acpi_ghci_get(struct vald_acpi_softc *sc,
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UINT32 reg, UINT32 *value, UINT32 *result)
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{
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ACPI_STATUS rv;
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ACPI_OBJECT_LIST ArgList;
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ACPI_OBJECT *param, *PrtElement;
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ACPI_BUFFER buf;
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sc->sc_Arg[0].Integer.Value = 0xfe00;
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sc->sc_Arg[1].Integer.Value = reg;
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sc->sc_Arg[2].Integer.Value = 0;
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ArgList.Count = GHCI_WORDS;
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ArgList.Pointer = sc->sc_Arg;
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buf.Pointer = sc->sc_Ret;
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buf.Length = sizeof(sc->sc_Ret);
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rv = AcpiEvaluateObject(sc->sc_node->ad_handle,
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"GHCI", &ArgList, &buf);
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*result = GHCI_NOT_SUPPORT;
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*value = 0;
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param = (ACPI_OBJECT *)buf.Pointer;
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if (param->Type == ACPI_TYPE_PACKAGE) {
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PrtElement = param->Package.Elements;
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if (PrtElement->Type == ACPI_TYPE_INTEGER)
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*result = PrtElement->Integer.Value;
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PrtElement++;
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PrtElement++;
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if (PrtElement->Type == ACPI_TYPE_INTEGER)
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*value = PrtElement->Integer.Value;
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}
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return (rv);
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}
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/*
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* vald_acpi_ghci_set:
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*
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* Set value via "GHCI" Method.
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*/
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ACPI_STATUS
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vald_acpi_ghci_set(struct vald_acpi_softc *sc,
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UINT32 reg, UINT32 value, UINT32 *result)
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{
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ACPI_STATUS rv;
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ACPI_OBJECT_LIST ArgList;
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ACPI_OBJECT *param, *PrtElement;
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ACPI_BUFFER buf;
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sc->sc_Arg[0].Integer.Value = 0xff00;
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sc->sc_Arg[1].Integer.Value = reg;
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sc->sc_Arg[2].Integer.Value = value;
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ArgList.Count = GHCI_WORDS;
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ArgList.Pointer = sc->sc_Arg;
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buf.Pointer = sc->sc_Ret;
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buf.Length = sizeof(sc->sc_Ret);
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rv = AcpiEvaluateObject(sc->sc_node->ad_handle,
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"GHCI", &ArgList, &buf);
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*result = GHCI_NOT_SUPPORT;
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param = (ACPI_OBJECT *)buf.Pointer;
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if (param->Type == ACPI_TYPE_PACKAGE) {
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PrtElement = param->Package.Elements;
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if (PrtElement->Type == ACPI_TYPE_INTEGER)
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*result = PrtElement->Integer.Value;
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}
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return (rv);
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}
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/*
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* vald_acpi_libright_get_bus:
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*
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* Get LCD brightness level via "_BCL" Method,
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* and save this handle.
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*/
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ACPI_STATUS
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vald_acpi_libright_get_bus(ACPI_HANDLE handle, UINT32 level, void *context,
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void **status)
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{
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struct vald_acpi_softc *sc = context;
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ACPI_STATUS rv;
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ACPI_BUFFER buf;
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ACPI_OBJECT *param, *PrtElement;
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int i, *pi;
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rv = acpi_eval_struct(handle, "_BCL", &buf);
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if (ACPI_FAILURE(rv))
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return (AE_OK);
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sc->lcd_handle = handle;
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param = (ACPI_OBJECT *)buf.Pointer;
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if (param->Type == ACPI_TYPE_PACKAGE) {
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printf("_BCL retrun: %d packages\n", param->Package.Count);
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sc->lcd_num = param->Package.Count;
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sc->lcd_level = AcpiOsAllocate(sizeof(int) * sc->lcd_num);
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PrtElement = param->Package.Elements;
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pi = sc->lcd_level;
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for (i = 0; i < param->Package.Count; i++) {
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if (PrtElement->Type == ACPI_TYPE_INTEGER) {
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*pi = (unsigned)PrtElement->Integer.Value;
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PrtElement++;
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pi++;
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}
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}
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if (sc->sc_ac_status == 1) /* AC adaptor on when attach */
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sc->lcd_index = sc->lcd_num -1; /* MAX Brightness */
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else
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sc->lcd_index = 3;
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#ifdef ACPI_DEBUG
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pi = sc->lcd_level;
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printf("\t Full Power Level: %d\n", *pi);
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printf("\t on Battery Level: %d\n", *(pi+1));
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printf("\t Possible Level: ");
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for (i = 2;i < sc->lcd_num; i++)
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printf(" %d", *(pi+i));
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printf("\n");
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#endif
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}
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free(buf.Pointer, M_DEVBUF);
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return (AE_OK);
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}
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/*
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* vald_acpi_libright_get:
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*
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* Search node that have "_BCL" Method.
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*/
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void
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vald_acpi_libright_get(struct vald_acpi_softc *sc)
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{
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ACPI_HANDLE parent;
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printf("%s: Get LCD brightness via _BCL\n", sc->sc_dev.dv_xname);
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#ifdef ACPI_DEBUG
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printf("acpi_libright_get: start\n");
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#endif
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if (AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &parent) != AE_OK)
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return;
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AcpiWalkNamespace(ACPI_TYPE_DEVICE, parent, 100,
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vald_acpi_libright_get_bus, sc, NULL);
|
|
}
|
|
|
|
/*
|
|
* vald_acpi_libright_set:
|
|
*
|
|
* Figure up next status and set it.
|
|
*/
|
|
void
|
|
vald_acpi_libright_set(struct vald_acpi_softc *sc, int UpDown)
|
|
{
|
|
ACPI_STATUS rv;
|
|
int *pi;
|
|
UINT32 backlight, backlight_new, result, bright;
|
|
|
|
/* Skip,if it does not support _BCL. */
|
|
if (sc->lcd_handle == NULL)
|
|
return;
|
|
|
|
/* Get LCD backlight status. */
|
|
rv = vald_acpi_ghci_get(sc, GHCI_BACKLIGHT, &backlight, &result);
|
|
if (rv != AE_OK)
|
|
printf("%s: unable to evaluate GHCI\n", sc->sc_dev.dv_xname);
|
|
if (result != 0)
|
|
printf("%s: Can't get LCD backlight status error=%x\n",
|
|
sc->sc_dev.dv_xname, result);
|
|
|
|
/* Figure up next status. */
|
|
backlight_new = backlight;
|
|
if (UpDown == LIBRIGHT_UP) {
|
|
if (backlight == 1)
|
|
sc->lcd_index++;
|
|
else {
|
|
/* backlight on */
|
|
backlight_new = 1;
|
|
sc->lcd_index = 2;
|
|
}
|
|
} else if (UpDown == LIBRIGHT_DOWN) {
|
|
if ((backlight == 1) && (sc->lcd_index > 2))
|
|
sc->lcd_index--;
|
|
else {
|
|
/* backlight off */
|
|
backlight_new = 0;
|
|
sc->lcd_index = 2;
|
|
}
|
|
}
|
|
|
|
/* Check index value. */
|
|
if (sc->lcd_index < 2)
|
|
sc->lcd_index = 2; /* index Minium Value */
|
|
if (sc->lcd_index >= sc->lcd_num)
|
|
sc->lcd_index = sc->lcd_num - 1;
|
|
|
|
/* Set LCD backlight,if status is changed. */
|
|
if (backlight_new != backlight) {
|
|
rv = vald_acpi_ghci_set(sc, GHCI_BACKLIGHT, backlight_new,
|
|
&result);
|
|
if (rv != AE_OK)
|
|
printf("%s: unable to evaluate GHCI\n",
|
|
sc->sc_dev.dv_xname);
|
|
if (result != 0)
|
|
printf("%s: Can't set LCD backlight %s error=%x\n",
|
|
sc->sc_dev.dv_xname,
|
|
((backlight_new == 1) ? "on" : "off"), result);
|
|
}
|
|
|
|
if (backlight_new == 1) {
|
|
|
|
pi = sc->lcd_level;
|
|
bright = *(pi + sc->lcd_index);
|
|
|
|
rv = vald_acpi_bcm_set(sc->lcd_handle, bright);
|
|
if (rv != AE_OK)
|
|
printf("Unable to evaluate _BCM: %d\n", rv);
|
|
} else {
|
|
bright = 0;
|
|
}
|
|
#ifdef ACPI_DEBUG
|
|
printf("LCD bright");
|
|
printf(" %s", ((UpDown == LIBRIGHT_UP) ? "up":""));
|
|
printf("%s\n", ((UpDown == LIBRIGHT_DOWN) ? "down":""));
|
|
printf("\t acpi_libright_set: Set brightness to %d%%\n", bright);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* vald_acpi_video_switch:
|
|
*
|
|
* Get video status(LCD/CRT) and set new video status.
|
|
*/
|
|
void
|
|
vald_acpi_video_switch(struct vald_acpi_softc *sc)
|
|
{
|
|
ACPI_STATUS rv;
|
|
UINT32 value, result;
|
|
|
|
/* Get video status. */
|
|
rv = vald_acpi_ghci_get(sc, GHCI_DISPLAY_DEVICE, &value, &result);
|
|
if (rv != AE_OK)
|
|
printf("%s: unable to evaluate GHCI\n", sc->sc_dev.dv_xname);
|
|
if (result != 0)
|
|
printf("%s: Can't get video status error=%x\n",
|
|
sc->sc_dev.dv_xname, result);
|
|
|
|
#ifdef ACPI_DEBUG
|
|
printf("Toggle LCD/CRT\n");
|
|
printf("\t Before switch, video status: %s",
|
|
(((value & GHCI_LCD) == GHCI_LCD) ? "LCD" : ""));
|
|
printf("%s\n", (((value & GHCI_CRT) == GHCI_CRT) ? "CRT": ""));
|
|
#endif
|
|
|
|
/* Toggle LCD/CRT */
|
|
if (value & GHCI_LCD) {
|
|
value &= ~GHCI_LCD;
|
|
value |= GHCI_CRT;
|
|
} else if (value & GHCI_CRT){
|
|
value &= ~GHCI_CRT;
|
|
value |= GHCI_LCD;
|
|
}
|
|
|
|
rv = vald_acpi_dssx_set(value);
|
|
if (rv != AE_OK)
|
|
printf("Unable to evaluate DSSX: %d\n", rv);
|
|
|
|
}
|
|
|
|
/*
|
|
* vald_acpi_bcm_set:
|
|
*
|
|
* Set LCD brightness via "_BCM" Method.
|
|
*/
|
|
ACPI_STATUS
|
|
vald_acpi_bcm_set(ACPI_HANDLE handle, UINT32 bright)
|
|
{
|
|
ACPI_STATUS rv;
|
|
ACPI_OBJECT Arg;
|
|
ACPI_OBJECT_LIST ArgList;
|
|
|
|
ArgList.Count = 1;
|
|
ArgList.Pointer = &Arg;
|
|
|
|
Arg.Type = ACPI_TYPE_INTEGER;
|
|
Arg.Integer.Value = bright;
|
|
|
|
rv = AcpiEvaluateObject(handle, "_BCM", &ArgList, NULL);
|
|
return (rv);
|
|
}
|
|
|
|
/*
|
|
* vald_acpi_dssx_set:
|
|
*
|
|
* Set value via "\\_SB_.VALX.DSSX" Method.
|
|
*/
|
|
ACPI_STATUS
|
|
vald_acpi_dssx_set(UINT32 value)
|
|
{
|
|
ACPI_STATUS rv;
|
|
ACPI_OBJECT Arg;
|
|
ACPI_OBJECT_LIST ArgList;
|
|
|
|
ArgList.Count = 1;
|
|
ArgList.Pointer = &Arg;
|
|
|
|
Arg.Type = ACPI_TYPE_INTEGER;
|
|
Arg.Integer.Value = value;
|
|
|
|
rv = AcpiEvaluateObject(ACPI_ROOT_OBJECT, "\\_SB_.VALX.DSSX",
|
|
&ArgList, NULL);
|
|
|
|
return (rv);
|
|
}
|
|
|
|
/*
|
|
* vald_acpi_fan_switch:
|
|
*
|
|
* Get FAN status and set new FAN status.
|
|
*/
|
|
void
|
|
vald_acpi_fan_switch(struct vald_acpi_softc *sc)
|
|
{
|
|
ACPI_STATUS rv;
|
|
UINT32 value, result;
|
|
|
|
/* Get FAN status */
|
|
rv = vald_acpi_ghci_get(sc, GHCI_FAN, &value, &result);
|
|
if (rv != AE_OK)
|
|
printf("%s: unable to evaluate GHCI\n", sc->sc_dev.dv_xname);
|
|
if (result != 0)
|
|
printf("%s: Can't get FAN status error=%d\n",
|
|
sc->sc_dev.dv_xname, result);
|
|
|
|
#ifdef ACPI_DEBUG
|
|
printf("Toggle FAN on/off\n");
|
|
printf("\t Before toggle, FAN status %s\n",
|
|
(value == GHCI_OFF ? "off" : "on"));
|
|
#endif
|
|
|
|
/* Toggle FAN on/off */
|
|
if (value == GHCI_OFF)
|
|
value = GHCI_ON;
|
|
else
|
|
value = GHCI_OFF;
|
|
|
|
/* Set FAN new status. */
|
|
rv = vald_acpi_ghci_set(sc, GHCI_FAN, value, &result);
|
|
if (rv != AE_OK)
|
|
printf("%s: unable to evaluate GHCI\n", sc->sc_dev.dv_xname);
|
|
if (result != 0)
|
|
printf("%s: Can't set FAN status error=%d\n",
|
|
sc->sc_dev.dv_xname, result);
|
|
|
|
#ifdef ACPI_DEBUG
|
|
printf("\t After toggle, FAN status %s\n",
|
|
(value == GHCI_OFF ? "off" : "on"));
|
|
#endif
|
|
}
|