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kern/50261: Please support newer Toshiba laptop hotkeys



>Number:         50261
>Category:       kern
>Synopsis:       Please support newer Toshiba laptop hotkeys
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Sep 20 08:25:00 +0000 2015
>Originator:     Ryo ONODERA
>Release:        NetBSD 7.99.21
>Organization:
	
>Environment:
	
	
System: NetBSD brownie.elements.tetera.org 7.99.21 NetBSD 7.99.21 (DTRACE7) #247: Sun Sep 20 17:10:06 JST 2015 ryo_on%brownie.elements.tetera.org@localhost:/usr/world/7.99/amd64/obj/sys/arch/amd64/compile/DTRACE7 amd64
Architecture: x86_64
Machine: amd64
>Description:
The included patch enables LCD backlight toggle and Touchpad/trackpoint 
toggle on Toshiba dynabook P63/PS.
	
>How-To-Repeat:
Apply the included patch.
	
>Fix:
	
Index: sys/dev/acpi/valz_acpi.c
===================================================================
RCS file: sys/dev/acpi/valz_acpi.c
diff -N sys/dev/acpi/valz_acpi.c
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ sys/dev/acpi/valz_acpi.c	20 Sep 2015 08:17:14 -0000
@@ -0,0 +1,643 @@
+/*	$NetBSD: vald_acpi.c,v 1.4 2010/04/15 07:02:24 jruoho Exp $ */
+
+/*-
+ * Copyright (c) 2002 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Masanori Kanaoka.
+ *
+ * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+/*
+ * Copyright 2001 Bill Sommerfeld.
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed for the NetBSD Project by
+ *	Wasabi Systems, Inc.
+ * 4. The name of Wasabi Systems, Inc. may not be used to endorse
+ *    or promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
+ * 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.
+ */
+
+/*
+ * ACPI VALZ Driver for Toshiba dynabook R63/PS
+ *	This driver is based on vald_acpi.c
+ */
+
+/*
+ * Obtain information of Toshiba "GHCI" Method from next URL.
+ *           http://www.buzzard.me.uk/toshiba/docs.html
+ *           http://memebeam.org/toys/ToshibaAcpiDriver
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: vald_acpi.c,v 1.4 2010/04/15 07:02:24 jruoho Exp $");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+
+#include <dev/acpi/acpica.h>
+#include <dev/acpi/acpireg.h>
+#include <dev/acpi/acpivar.h>
+
+#define _COMPONENT		ACPI_RESOURCE_COMPONENT
+ACPI_MODULE_NAME		("valz_acpi")
+
+#define METHOD_HCI		"GHCI"
+#define METHOD_HCI_ENABLE	"ENAB"
+
+/* Operations */
+/* Get */
+#define HCI_GET			0xfe00
+#define SCI_CHECK		0xf000
+#define SCI_GET			0xf300
+
+/* Set */
+#define HCI_SET			0xff00
+#define SCI_OPEN		0xf100
+#define SCI_CLOSE		0xf200
+#define SCI_SET			0xf400
+
+/* Return codes */
+#define HCI_SUCCESS		0x0000
+#define HCI_FAILURE		0x1000
+#define HCI_NOT_SUPPORTED	0x8000
+#define HCI_INPUT_ERROR		0x8300
+#define HCI_FIFO_EMPTY		0x8c00
+
+#define SCI_OPENCLOSE_OK	0x0044
+#define SCI_NOT_SUPPORTED	0x8000
+#define SCI_ALREADY_OPEN	0x8100
+#define SCI_NOT_OPEN		0x8200
+#define SCI_NOT_PRESENT		0x8600
+
+/* Functions */
+#define HCI_LCD_BACKLIGHT	0x0002
+#define HCI_ACADAPTOR		0x0003
+#define HCI_SYSTEM_EVENT_FIFO	0x0016
+#define HCI_KBD_BACKLIGHT	0x0017
+#define HCI_DISPLAY_DEV		0x001c
+#define HCI_HOTKEY_EVENT	0x001e
+#define HCI_LCD_BRIGHTNESS	0x002a
+#define HCI_CPU_SPEED		0x0032
+
+#define SCI_USB_OFF_CHARGE	0x0150
+#define SCI_TOUCHPAD		0x050e
+#define SCI_KBD_BACKLIGHT_STS	0x015c
+#define SCI_KBD_BACKLIGHT	0x0095
+
+#define SCI_KBD_BL_TIME_SHIFT	0x10
+
+/* Field definitions */
+#define HCI_LCD_BRIGHTNESS_BITS	3
+#define HCI_LCD_BRIGHTNESS_SFT	(16 - HCI_LCD_BRIGHTNESS_BITS)
+#define HCI_LCD_BRIGHTNESS_MIN	0
+#define HCI_LCD_BRIGHTNESS_MAX	7
+#define HCI_VIDEO_DEVICE_FLG	0x0100
+#define HCI_CPU_SPEED_BITS	3
+#define HCI_CPU_SPEED_SFT	(16 - HCI_CPU_SPEED_BITS)
+#define HCI_CPU_SPEED_MAX	((1 << HCI_CPU_SPEED_BITS) - 1)
+
+/* Key press/release events */
+
+/* Key press/release events */
+#define FN_RELEASE_OFFSET	0x80
+#  if 0
+/* Not used */
+#define FN_PRESS		0x01ff
+#define FN_RELEASE		0x0100
+#  endif
+#define FN_ESC_PRESS		0x0101
+#define FN_ESC_RELEASE		(FN_ESC_PRESS + FN_RELEASE_OFFSET)
+#define FN_F1_PRESS		0x013b
+#define FN_F1_RELEASE		(FN_F1_PRESS + FN_RELEASE_OFFSET)
+#define FN_F2_PRESS		0x013c
+#define FN_F2_RELEASE		(FN_F2_PRESS + FN_RELEASE_OFFSET)
+#define FN_F3_PRESS		0x013d
+#define FN_F3_RELEASE		(FN_F3_PRESS + FN_RELEASE_OFFSET)
+#define FN_F4_PRESS		0x013e
+#define FN_F4_RELEASE		(FN_F4_PRESS + FN_RELEASE_OFFSET)
+#define FN_F5_PRESS		0x013f
+#define FN_F5_RELEASE		(FN_F5_PRESS + FN_RELEASE_OFFSET)
+#define FN_F6_PRESS		0x0140
+#define FN_F6_RELEASE		(FN_F6_PRESS + FN_RELEASE_OFFSET)
+#define FN_F7_PRESS		0x0141
+#define FN_F7_RELEASE		(FN_F7_PRESS + FN_RELEASE_OFFSET)
+#define FN_F8_PRESS		0x0142
+#define FN_F8_RELEASE		(FN_F8_PRESS + FN_RELEASE_OFFSET)
+#define FN_F9_PRESS		0x0143
+#define FN_F9_RELEASE		(FN_F9_PRESS + FN_RELEASE_OFFSET)
+/* Toggle, they are controlled by hardware */
+#define FN_F10_ON		0x1bb0
+#define FN_F10_OFF		0x1bb1
+#define FN_F11_ON		0x1bb2
+#define FN_F11_OFF		0x1bb3
+/* Fn+F12 does not emit keycode */
+/* dynabook R63/PS does not have KANJI keytop print */
+#define FN_KNJ_PRESS		0x0129
+#define FN_KNJ_RELEASE		(FN_KNJ_PRESS + FN_RELEASE_OFFSET)
+#define FN_1_PRESS		0x0102
+#define FN_1_RELEASE		(FN_1_PRESS + FN_RELEASE_OFFSET)
+#define FN_2_PRESS		0x0103
+#define FN_2_RELEASE		(FN_2_PRESS + FN_RELEASE_OFFSET)
+/* Fn+3 and Fn+4 do not emit keybode */
+#define FN_Z_PRESS		0x012c
+#define FN_Z_RELEASE		(FN_1_PRESS + FN_RELEASE_OFFSET)
+#define FN_SPACE_PRESS		0x0139
+#define FN_SPACE_RELEASE	(FN_1_PRESS + FN_RELEASE_OFFSET)
+#define FN_TAB_PRESS		0x010f
+#define FN_TAB_RELEASE		(FN_TAB_PRESS + FN_RELEASE_OFFSET)
+#define FN_CAPS_PRESS		0x013a
+#define FN_CAPS_RELEASE		(FN_CAPS_PRESS + FN_RELEASE_OFFSET)
+#define FN_BACKSPACE_PRESS	0x010e
+#define FN_BACKSPACE_RELEASE	(FN_BACKSPACE_PRESS + FN_RELEASE_OFFSET)
+#define FN_INS_PRESS		0x0152
+#define FN_INS_RELEASE		(FN_INS_PRESS + FN_RELEASE_OFFSET)
+#define FN_DEL_PRESS		0x0153
+#define FN_DEL_RELEASE		(FN_DEL_PRESS + FN_RELEASE_OFFSET)
+#define FN_PRTSC_PRESS		0x0137
+#define FN_PRTSC_RELEASE	(FN_PRTSC_PRESS + FN_RELEASE_OFFSET)
+
+/* HCI register definitions */
+#define HCI_WORDS		6 /* number of registers */
+#define HCI_REG_AX		0 /* Operation -> return value */
+#define HCI_REG_BX		1 /* Function */
+#define HCI_REG_CX		2 /* Argument (in or out) */
+#define HCI_REG_DX		3 /* unused */
+#define HCI_REG_SI		4 /* unused */
+#define HCI_REG_DI		5 /* unused */
+
+#define HCI_ON			0x0001
+#define HCI_OFF			0x0000
+#define HCI_ENABLE		0x0001
+#define HCI_DISABLE		0x0000
+
+#define HCI_LCD			0x1
+#define HCI_CRT			0x2
+#define HCI_TV			0x4
+
+#define SCI_KBD_BL_MODE_MASK	0x1f
+#define SCI_KBD_BL_TIMO_SFT	0x10
+#define SCI_KBD_BL_MODE_AUTO	0x2
+#define SCI_KBD_BL_MODE_ON	0x8
+#define SCI_KBD_BL_MODE_OFF	0x10
+
+struct valz_acpi_softc {
+	device_t sc_dev;		/* base device glue */
+	struct acpi_devnode *sc_node;	/* our ACPI devnode */
+};
+
+static const char * const valz_acpi_hids[] = {
+	"TOS6208",
+	NULL
+};
+
+static int	valz_acpi_match(device_t, cfdata_t, void *);
+static void	valz_acpi_attach(device_t, device_t, void *);
+
+static void	valz_acpi_event(void *);
+static void	valz_acpi_notify_handler(ACPI_HANDLE, uint32_t, void *);
+
+#define ACPI_NOTIFY_ValzHotkeyPressed	0x80
+#define ACPI_NOTIFY_ValzLidClosed	0x8f
+#define ACPI_NOTIFY_ValzKbdBLChanges	0x92
+
+/* HCI manipulation */
+static ACPI_STATUS	hci_op(struct valz_acpi_softc *,
+				uint32_t *, uint32_t *);
+static ACPI_STATUS	valz_acpi_hci_get(struct valz_acpi_softc *, uint32_t,
+					uint32_t, uint32_t *, uint32_t *);
+static ACPI_STATUS	valz_acpi_hci_set(struct valz_acpi_softc *, uint32_t,
+					uint32_t, uint32_t, uint32_t *);
+
+static ACPI_STATUS	sci_open(struct valz_acpi_softc *);
+static ACPI_STATUS	sci_close(struct valz_acpi_softc *);
+
+static ACPI_STATUS	valz_acpi_touchpad_toggle(struct valz_acpi_softc *);
+static ACPI_STATUS	valz_acpi_lcd_backlight_toggle(
+					struct valz_acpi_softc *sc);
+
+CFATTACH_DECL_NEW(valz_acpi, sizeof(struct valz_acpi_softc),
+    valz_acpi_match, valz_acpi_attach, NULL, NULL);
+
+/*
+ * valz_acpi_match:
+ *
+ *	Autoconfiguration `match' routine.
+ */
+static int
+valz_acpi_match(device_t parent, cfdata_t match, void *aux)
+{
+	struct acpi_attach_args *aa = aux;
+
+	if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
+		return (0);
+
+	return (acpi_match_hid(aa->aa_node->ad_devinfo, valz_acpi_hids));
+}
+
+/*
+ * valz_acpi_attach:
+ *
+ *	Autoconfiguration `attach' routine.
+ */
+static void
+valz_acpi_attach(device_t parent, device_t self, void *aux)
+{
+	struct valz_acpi_softc *sc = device_private(self);
+	struct acpi_attach_args *aa = aux;
+	ACPI_STATUS rv;
+
+	aprint_naive(": Toshiba VALZ\n");
+	aprint_normal(": Toshiba VALZ\n");
+
+	sc->sc_node = aa->aa_node;
+	sc->sc_dev = self;
+
+	/* enable valz notify */
+	rv = AcpiEvaluateObject(sc->sc_node->ad_handle, METHOD_HCI_ENABLE,
+				NULL, NULL);
+	if (ACPI_FAILURE(rv)) {
+		aprint_error("Cannot enable VALZ.\n");
+	} else {
+		(void)acpi_register_notify(sc->sc_node,
+		    valz_acpi_notify_handler);
+	}
+}
+
+/*
+ * valz_acpi_notify_handler:
+ *
+ *	Notify handler.
+ */
+static void
+valz_acpi_notify_handler(ACPI_HANDLE handle, uint32_t notify, void *context)
+{
+	struct valz_acpi_softc *sc;
+	device_t self = context;
+
+	sc = device_private(self);
+
+	switch (notify) {
+	case ACPI_NOTIFY_ValzHotkeyPressed:
+		(void)AcpiOsExecute(OSL_NOTIFY_HANDLER, valz_acpi_event, sc);
+		break;
+
+	case ACPI_NOTIFY_ValzLidClosed:
+		/* Lid closed */
+		break;
+
+	case ACPI_NOTIFY_ValzKbdBLChanges:
+		/* Keyboard backlight mode changed */
+		break;
+
+	default:
+		aprint_error_dev(sc->sc_dev,
+		    "unknown notify 0x%02X\n", notify);
+		break;
+	}
+}
+
+/*
+ * valz_acpi_event:
+ *
+ *	Check hotkey event and do it, if event occur.
+ */
+static void
+valz_acpi_event(void *arg)
+{
+	struct valz_acpi_softc *sc = arg;
+	ACPI_STATUS rv;
+	uint32_t value, result;
+
+	while(1) {
+		rv = valz_acpi_hci_get(sc, HCI_GET, HCI_SYSTEM_EVENT_FIFO,
+			&value, &result);
+		if (ACPI_SUCCESS(rv) && result == 0) {
+			switch (value) {
+			case FN_F9_PRESS:
+				valz_acpi_touchpad_toggle(sc);
+				break;
+			case FN_TAB_PRESS:
+				valz_acpi_lcd_backlight_toggle(sc);
+				break;
+
+			default:
+				/* Many unused buttons */
+				aprint_debug("Pressed: 0x%x\n", value);
+				break;
+			}
+		}
+		if (ACPI_FAILURE(rv) || result == HCI_NOT_SUPPORTED ||
+			result == HCI_FIFO_EMPTY)
+			break;
+	}
+}
+
+/*
+ * HCI/SCI operation
+ */
+static ACPI_STATUS
+hci_op(struct valz_acpi_softc *sc, uint32_t *input, uint32_t *output)
+{
+	ACPI_STATUS rv;
+	ACPI_OBJECT Arg[HCI_WORDS];
+	ACPI_OBJECT_LIST ArgList;
+	ACPI_OBJECT *param, *PrtElement;
+	ACPI_BUFFER buf;
+	int		i;
+
+	for (i = 0; i < HCI_WORDS; i++) {
+		Arg[i].Type = ACPI_TYPE_INTEGER;
+		Arg[i].Integer.Value = 0;
+	}
+
+	for (i = 0; i < HCI_WORDS; i++) {
+		Arg[i].Integer.Value = input[i];
+	}
+
+	ArgList.Count = HCI_WORDS;
+	ArgList.Pointer = Arg;
+
+	buf.Pointer = NULL;
+	buf.Length = ACPI_ALLOCATE_BUFFER;
+
+	rv = AcpiEvaluateObjectTyped(sc->sc_node->ad_handle,
+	    METHOD_HCI, &ArgList, &buf, ACPI_TYPE_PACKAGE);
+	if (ACPI_FAILURE(rv)) {
+		aprint_error_dev(sc->sc_dev, "failed to evaluate GHCI: %s\n",
+		    AcpiFormatException(rv));
+		return rv;
+	}
+
+	for (i = 0; i < HCI_WORDS; i++) {
+		output[i] = 0;
+	}
+	param = (ACPI_OBJECT *)buf.Pointer;
+	PrtElement = param->Package.Elements;
+	for (i = 0; i < HCI_WORDS; i++) {
+		if (PrtElement->Type == ACPI_TYPE_INTEGER)
+			output[i] = PrtElement->Integer.Value;
+			PrtElement++;
+	}
+
+	if (buf.Pointer)
+		ACPI_FREE(buf.Pointer);
+
+	return rv;
+}
+
+/*
+ * valz_acpi_hci_get:
+ *
+ *	Get value via "GHCI" Method.
+ */
+static ACPI_STATUS
+valz_acpi_hci_get(struct valz_acpi_softc *sc, uint32_t function,
+    uint32_t reg, uint32_t *value, uint32_t *result)
+{
+	ACPI_STATUS rv;
+
+	uint32_t input[HCI_WORDS];
+	uint32_t output[HCI_WORDS];
+
+	input[HCI_REG_AX] = function;
+	input[HCI_REG_BX] = reg;
+	input[HCI_REG_CX] = 0;
+	input[HCI_REG_DX] = 0;
+	input[HCI_REG_SI] = 0;
+	input[HCI_REG_DI] = 0;
+
+	rv = hci_op(sc, input, output);
+
+	*result = output[HCI_REG_AX];
+	*value = output[HCI_REG_CX];
+
+	return rv;
+}
+
+/*
+ * valz_acpi_hci_set:
+ *
+ *	Set value via "GHCI" Method.
+ */
+static ACPI_STATUS
+valz_acpi_hci_set(struct valz_acpi_softc *sc, uint32_t function,
+    uint32_t reg, uint32_t value, uint32_t *result)
+{
+	ACPI_STATUS rv;
+
+	uint32_t input[HCI_WORDS];
+	uint32_t output[HCI_WORDS];
+
+	input[HCI_REG_AX] = function;
+	input[HCI_REG_BX] = reg;
+	input[HCI_REG_CX] = value;
+	input[HCI_REG_DX] = 0;
+	input[HCI_REG_SI] = 0;
+	input[HCI_REG_DI] = 0;
+
+	rv = hci_op(sc, input, output);
+
+	*result = output[HCI_REG_AX];
+
+	return rv;
+}
+
+/*
+ * Open SCI
+ */
+static ACPI_STATUS
+sci_open(struct valz_acpi_softc *sc)
+{
+	ACPI_STATUS rv;
+	uint32_t result;
+
+	rv = valz_acpi_hci_set(sc, SCI_OPEN, 0, 0, &result);
+	if (ACPI_FAILURE(rv)) {
+		aprint_error("SCI: ACPI set error\n");
+	} else {
+		switch (result) {
+		case SCI_OPENCLOSE_OK:
+			aprint_debug("Opening SCI\n");
+			break;
+		case SCI_ALREADY_OPEN:
+			aprint_error("SCI already open\n");
+			break;
+		case SCI_NOT_SUPPORTED:
+			aprint_error("SCI is not supported\n");
+			break;
+		case SCI_NOT_PRESENT:
+			aprint_error("SCI is not present\n");
+			break;
+		default:
+			aprint_error("SCI: undefined behavior\n");
+			break;
+		}
+	}
+
+	return rv;
+}
+
+/*
+ * Close SCI
+ */
+static ACPI_STATUS
+sci_close(struct valz_acpi_softc *sc)
+{
+	ACPI_STATUS rv;
+	uint32_t result;
+
+	rv = valz_acpi_hci_set(sc, SCI_CLOSE, 0, 0, &result);
+	if (ACPI_FAILURE(rv)) {
+		aprint_error("SCI: ACPI set error\n");
+	} else {
+		switch (result) {
+		case SCI_OPENCLOSE_OK:
+			aprint_debug("Closing SCI\n");
+			break;
+		case SCI_NOT_OPEN:
+			aprint_error("SCI is not opened\n");
+			break;
+		case SCI_NOT_SUPPORTED:
+			aprint_error("SCI is not supported\n");
+			break;
+		case SCI_NOT_PRESENT:
+			aprint_error("SCI is not present\n");
+			break;
+		default:
+			aprint_error("SCI: undefined behavior\n");
+			break;
+		}
+	}
+
+	return rv;
+}
+
+/*
+ * Enable/disable touchpad and trackpoint with HCI_ENABLE/HCI_DISABLE
+ */
+static ACPI_STATUS
+valz_acpi_touchpad_toggle(struct valz_acpi_softc *sc)
+{
+	ACPI_STATUS rv;
+	uint32_t result, status, value;
+
+	rv = sci_open(sc);
+	if (ACPI_FAILURE(rv))
+		aprint_error_dev(sc->sc_dev,
+				"Cannot open SCI: %s\n",
+				AcpiFormatException(rv));
+
+	rv = valz_acpi_hci_get(sc, SCI_GET, SCI_TOUCHPAD, &value, &result);
+	if (ACPI_FAILURE(rv))
+		aprint_error_dev(sc->sc_dev,
+				"Cannot get SCI touchpad status: %s\n",
+				AcpiFormatException(rv));
+
+	switch (value) {
+	case HCI_ENABLE:
+		status = HCI_DISABLE;
+		break;
+	case HCI_DISABLE:
+		status = HCI_ENABLE;
+		break;
+	default:
+		status = HCI_ENABLE;
+		break;
+	}
+
+	rv = valz_acpi_hci_set(sc, SCI_SET, SCI_TOUCHPAD, status, &result);
+	if (ACPI_FAILURE(rv))
+		aprint_error_dev(sc->sc_dev,
+				"Cannot set SCI touchpad status: %s\n",
+				AcpiFormatException(rv));
+
+	rv = sci_close(sc);
+	if (ACPI_FAILURE(rv))
+		aprint_error_dev(sc->sc_dev,
+				"Cannot close SCI: %s\n",
+				AcpiFormatException(rv));
+
+	return rv;
+}
+
+/*
+ * Enable/disable LCD backlight with HCI_ENABLE/HCI_DISABLE
+ */
+static ACPI_STATUS
+valz_acpi_lcd_backlight_toggle(struct valz_acpi_softc *sc)
+{
+	ACPI_STATUS rv;
+	uint32_t result, status, value;
+
+	rv = valz_acpi_hci_get(sc, HCI_GET, HCI_LCD_BACKLIGHT, &value, &result);
+	if (ACPI_FAILURE(rv))
+		aprint_error_dev(sc->sc_dev,
+				"Cannot get HCI LCD backlight status: %s\n",
+				AcpiFormatException(rv));
+
+	switch (value) {
+	case HCI_ON:
+		status = HCI_OFF;
+		break;
+	case HCI_OFF:
+		status = HCI_ON;
+		break;
+	default:
+		status = HCI_ON;
+		break;
+	}
+
+	rv = valz_acpi_hci_set(sc, HCI_SET, HCI_LCD_BACKLIGHT, status, &result);
+	if (ACPI_FAILURE(rv))
+		aprint_error_dev(sc->sc_dev,
+				"Cannot set HCI LCD backlight status: %s\n",
+				AcpiFormatException(rv));
+
+	return rv;
+}
Index: sys/dev/acpi/files.acpi
===================================================================
RCS file: /cvsroot/src/sys/dev/acpi/files.acpi,v
retrieving revision 1.95
diff -u -r1.95 files.acpi
--- sys/dev/acpi/files.acpi	14 Sep 2014 19:54:05 -0000	1.95
+++ sys/dev/acpi/files.acpi	20 Sep 2015 08:17:14 -0000
@@ -169,6 +169,11 @@
 attach	vald at acpinodebus with vald_acpi
 file	dev/acpi/vald_acpi.c		vald_acpi
 
+# Toshiba dynabook hotkeys
+device	valz
+attach	valz at acpinodebus with valz_acpi
+file	dev/acpi/valz_acpi.c		valz_acpi
+
 # Sony SPIC (jog dial etc.)
 attach	spic at acpinodebus with spic_acpi
 file	dev/acpi/spic_acpi.c		spic_acpi

>Unformatted:
 	
 	


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