563 lines
14 KiB
C
563 lines
14 KiB
C
/*-
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* Copyright (c) 2003 Hiroyuki Aizu <aizu@navi.org>
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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#include "opt_acpi.h"
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <contrib/dev/acpica/include/acpi.h>
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#include <dev/acpica/acpivar.h>
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#define _COMPONENT ACPI_OEM
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ACPI_MODULE_NAME("Toshiba")
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/*
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* Toshiba HCI interface definitions
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*
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* HCI is Toshiba's "Hardware Control Interface" which is supposed to
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* be uniform across all their models. Ideally we would just call
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* dedicated ACPI methods instead of using this primitive interface.
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* However, the ACPI methods seem to be incomplete in some areas (for
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* example they allow setting, but not reading, the LCD brightness
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* value), so this is still useful.
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*/
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#define METHOD_HCI "GHCI"
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#define METHOD_HCI_ENABLE "ENAB"
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#define METHOD_VIDEO "DSSX"
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/* Operations */
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#define HCI_SET 0xFF00
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#define HCI_GET 0xFE00
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/* Return codes */
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#define HCI_SUCCESS 0x0000
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#define HCI_FAILURE 0x1000
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#define HCI_NOT_SUPPORTED 0x8000
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#define HCI_EMPTY 0x8C00
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/* Functions */
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#define HCI_REG_LCD_BACKLIGHT 0x0002
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#define HCI_REG_FAN 0x0004
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#define HCI_REG_SYSTEM_EVENT 0x0016
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#define HCI_REG_VIDEO_OUTPUT 0x001C
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#define HCI_REG_HOTKEY_EVENT 0x001E
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#define HCI_REG_LCD_BRIGHTNESS 0x002A
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#define HCI_REG_CPU_SPEED 0x0032
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/* Field definitions */
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#define HCI_FAN_SHIFT 7
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#define HCI_LCD_BRIGHTNESS_BITS 3
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#define HCI_LCD_BRIGHTNESS_SHIFT (16 - HCI_LCD_BRIGHTNESS_BITS)
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#define HCI_LCD_BRIGHTNESS_MAX ((1 << HCI_LCD_BRIGHTNESS_BITS) - 1)
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#define HCI_VIDEO_OUTPUT_FLAG 0x0100
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#define HCI_VIDEO_OUTPUT_LCD 0x1
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#define HCI_VIDEO_OUTPUT_CRT 0x2
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#define HCI_VIDEO_OUTPUT_TV 0x4
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#define HCI_CPU_SPEED_BITS 3
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#define HCI_CPU_SPEED_SHIFT (16 - HCI_CPU_SPEED_BITS)
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#define HCI_CPU_SPEED_MAX ((1 << HCI_CPU_SPEED_BITS) - 1)
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/* Key press/release events. */
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#define FN_F1_PRESS 0x013B
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#define FN_F1_RELEASE 0x01BB
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#define FN_F2_PRESS 0x013C
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#define FN_F2_RELEASE 0x01BC
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#define FN_F3_PRESS 0x013D
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#define FN_F3_RELEASE 0x01BD
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#define FN_F4_PRESS 0x013E
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#define FN_F4_RELEASE 0x01BE
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#define FN_F5_PRESS 0x013F
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#define FN_F5_RELEASE 0x01BF
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#define FN_F6_PRESS 0x0140
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#define FN_F6_RELEASE 0x01C0
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#define FN_F7_PRESS 0x0141
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#define FN_F7_RELEASE 0x01C1
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#define FN_F8_PRESS 0x0142
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#define FN_F8_RELEASE 0x01C2
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#define FN_F9_PRESS 0x0143
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#define FN_F9_RELEASE 0x01C3
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#define FN_BS_PRESS 0x010E
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#define FN_BS_RELEASE 0x018E
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#define FN_ESC_PRESS 0x0101
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#define FN_ESC_RELEASE 0x0181
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#define FN_KNJ_PRESS 0x0129
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#define FN_KNJ_RELEASE 0x01A9
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/* HCI register definitions. */
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#define HCI_WORDS 6 /* Number of registers */
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#define HCI_REG_AX 0 /* Operation, then return value */
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#define HCI_REG_BX 1 /* Function */
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#define HCI_REG_CX 2 /* Argument (in or out) */
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#define HCI_REG_DX 3 /* Unused? */
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#define HCI_REG_SI 4 /* Unused? */
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#define HCI_REG_DI 5 /* Unused? */
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struct acpi_toshiba_softc {
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device_t dev;
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ACPI_HANDLE handle;
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ACPI_HANDLE video_handle;
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struct sysctl_ctx_list sysctl_ctx;
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struct sysctl_oid *sysctl_tree;
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};
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/* Prototype for HCI functions for getting/setting a value. */
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typedef int hci_fn_t(ACPI_HANDLE, int, UINT32 *);
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static int acpi_toshiba_probe(device_t dev);
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static int acpi_toshiba_attach(device_t dev);
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static int acpi_toshiba_detach(device_t dev);
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static int acpi_toshiba_sysctl(SYSCTL_HANDLER_ARGS);
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static hci_fn_t hci_force_fan;
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static hci_fn_t hci_video_output;
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static hci_fn_t hci_lcd_brightness;
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static hci_fn_t hci_lcd_backlight;
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static hci_fn_t hci_cpu_speed;
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static int hci_call(ACPI_HANDLE h, int op, int function, UINT32 *arg);
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static void hci_key_action(struct acpi_toshiba_softc *sc, ACPI_HANDLE h,
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UINT32 key);
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static void acpi_toshiba_notify(ACPI_HANDLE h, UINT32 notify,
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void *context);
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static int acpi_toshiba_video_probe(device_t dev);
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static int acpi_toshiba_video_attach(device_t dev);
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ACPI_SERIAL_DECL(toshiba, "ACPI Toshiba Extras");
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/* Table of sysctl names and HCI functions to call. */
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static struct {
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char *name;
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hci_fn_t *handler;
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} sysctl_table[] = {
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/* name, handler */
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{"force_fan", hci_force_fan},
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{"video_output", hci_video_output},
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{"lcd_brightness", hci_lcd_brightness},
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{"lcd_backlight", hci_lcd_backlight},
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{"cpu_speed", hci_cpu_speed},
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{NULL, NULL}
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};
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static device_method_t acpi_toshiba_methods[] = {
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DEVMETHOD(device_probe, acpi_toshiba_probe),
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DEVMETHOD(device_attach, acpi_toshiba_attach),
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DEVMETHOD(device_detach, acpi_toshiba_detach),
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DEVMETHOD_END
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};
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static driver_t acpi_toshiba_driver = {
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"acpi_toshiba",
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acpi_toshiba_methods,
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sizeof(struct acpi_toshiba_softc),
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};
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DRIVER_MODULE(acpi_toshiba, acpi, acpi_toshiba_driver, 0, 0);
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MODULE_DEPEND(acpi_toshiba, acpi, 1, 1, 1);
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static device_method_t acpi_toshiba_video_methods[] = {
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DEVMETHOD(device_probe, acpi_toshiba_video_probe),
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DEVMETHOD(device_attach, acpi_toshiba_video_attach),
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DEVMETHOD_END
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};
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static driver_t acpi_toshiba_video_driver = {
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"acpi_toshiba_video",
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acpi_toshiba_video_methods,
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0,
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};
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DRIVER_MODULE(acpi_toshiba_video, acpi, acpi_toshiba_video_driver, 0, 0);
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MODULE_DEPEND(acpi_toshiba_video, acpi, 1, 1, 1);
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static int enable_fn_keys = 1;
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TUNABLE_INT("hw.acpi.toshiba.enable_fn_keys", &enable_fn_keys);
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/*
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* HID Model
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* -------------------------------------
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* TOS6200 Libretto L Series
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* Dynabook Satellite 2455
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* Dynabook SS 3500
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* TOS6207 Dynabook SS2110 Series
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* TOS6208 SPA40
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*/
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static int
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acpi_toshiba_probe(device_t dev)
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{
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static char *tosh_ids[] = { "TOS6200", "TOS6207", "TOS6208", NULL };
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int rv;
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if (acpi_disabled("toshiba") ||
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device_get_unit(dev) != 0)
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return (ENXIO);
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rv = ACPI_ID_PROBE(device_get_parent(dev), dev, tosh_ids, NULL);
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if (rv <= 0)
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device_set_desc(dev, "Toshiba HCI Extras");
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return (rv);
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}
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static int
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acpi_toshiba_attach(device_t dev)
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{
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struct acpi_toshiba_softc *sc;
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struct acpi_softc *acpi_sc;
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ACPI_STATUS status;
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int i;
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sc = device_get_softc(dev);
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sc->dev = dev;
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sc->handle = acpi_get_handle(dev);
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acpi_sc = acpi_device_get_parent_softc(dev);
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sysctl_ctx_init(&sc->sysctl_ctx);
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sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
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SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO,
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"toshiba", CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "");
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for (i = 0; sysctl_table[i].name != NULL; i++) {
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SYSCTL_ADD_PROC(&sc->sysctl_ctx,
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SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
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sysctl_table[i].name,
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CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY |
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CTLFLAG_MPSAFE, sc, i, acpi_toshiba_sysctl, "I", "");
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}
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if (enable_fn_keys != 0) {
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status = AcpiEvaluateObject(sc->handle, METHOD_HCI_ENABLE,
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NULL, NULL);
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if (ACPI_FAILURE(status)) {
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device_printf(dev, "enable FN keys failed\n");
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sysctl_ctx_free(&sc->sysctl_ctx);
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return (ENXIO);
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}
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AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
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acpi_toshiba_notify, sc);
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}
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return (0);
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}
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static int
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acpi_toshiba_detach(device_t dev)
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{
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struct acpi_toshiba_softc *sc;
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sc = device_get_softc(dev);
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if (enable_fn_keys != 0) {
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AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
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acpi_toshiba_notify);
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}
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sysctl_ctx_free(&sc->sysctl_ctx);
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return (0);
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}
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static int
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acpi_toshiba_sysctl(SYSCTL_HANDLER_ARGS)
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{
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struct acpi_toshiba_softc *sc;
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UINT32 arg;
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int function, error = 0;
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hci_fn_t *handler;
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sc = (struct acpi_toshiba_softc *)oidp->oid_arg1;
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function = oidp->oid_arg2;
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handler = sysctl_table[function].handler;
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/* Get the current value from the appropriate function. */
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ACPI_SERIAL_BEGIN(toshiba);
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error = handler(sc->handle, HCI_GET, &arg);
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if (error != 0)
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goto out;
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/* Send the current value to the user and return if no new value. */
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error = sysctl_handle_int(oidp, &arg, 0, req);
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if (error != 0 || req->newptr == NULL)
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goto out;
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/* Set the new value via the appropriate function. */
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error = handler(sc->handle, HCI_SET, &arg);
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out:
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ACPI_SERIAL_END(toshiba);
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return (error);
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}
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static int
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hci_force_fan(ACPI_HANDLE h, int op, UINT32 *state)
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{
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int ret;
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ACPI_SERIAL_ASSERT(toshiba);
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if (op == HCI_SET) {
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if (*state > 1)
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return (EINVAL);
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*state <<= HCI_FAN_SHIFT;
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}
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ret = hci_call(h, op, HCI_REG_FAN, state);
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if (ret == 0 && op == HCI_GET)
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*state >>= HCI_FAN_SHIFT;
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return (ret);
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}
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static int
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hci_video_output(ACPI_HANDLE h, int op, UINT32 *video_output)
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{
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int ret;
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ACPI_STATUS status;
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ACPI_SERIAL_ASSERT(toshiba);
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if (op == HCI_SET) {
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if (*video_output < 1 || *video_output > 7)
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return (EINVAL);
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if (h == NULL)
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return (ENXIO);
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*video_output |= HCI_VIDEO_OUTPUT_FLAG;
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status = acpi_SetInteger(h, METHOD_VIDEO, *video_output);
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if (ACPI_SUCCESS(status))
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ret = 0;
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else
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ret = ENXIO;
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} else {
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ret = hci_call(h, op, HCI_REG_VIDEO_OUTPUT, video_output);
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if (ret == 0)
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*video_output &= 0xff;
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}
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return (ret);
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}
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static int
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hci_lcd_brightness(ACPI_HANDLE h, int op, UINT32 *brightness)
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{
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int ret;
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ACPI_SERIAL_ASSERT(toshiba);
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if (op == HCI_SET) {
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if (*brightness > HCI_LCD_BRIGHTNESS_MAX)
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return (EINVAL);
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*brightness <<= HCI_LCD_BRIGHTNESS_SHIFT;
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}
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ret = hci_call(h, op, HCI_REG_LCD_BRIGHTNESS, brightness);
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if (ret == 0 && op == HCI_GET)
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*brightness >>= HCI_LCD_BRIGHTNESS_SHIFT;
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return (ret);
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}
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static int
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hci_lcd_backlight(ACPI_HANDLE h, int op, UINT32 *backlight)
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{
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ACPI_SERIAL_ASSERT(toshiba);
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if (op == HCI_SET) {
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if (*backlight > 1)
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return (EINVAL);
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}
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return (hci_call(h, op, HCI_REG_LCD_BACKLIGHT, backlight));
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}
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static int
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hci_cpu_speed(ACPI_HANDLE h, int op, UINT32 *speed)
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{
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int ret;
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ACPI_SERIAL_ASSERT(toshiba);
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if (op == HCI_SET) {
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if (*speed > HCI_CPU_SPEED_MAX)
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return (EINVAL);
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*speed <<= HCI_CPU_SPEED_SHIFT;
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}
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ret = hci_call(h, op, HCI_REG_CPU_SPEED, speed);
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if (ret == 0 && op == HCI_GET)
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*speed >>= HCI_CPU_SPEED_SHIFT;
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return (ret);
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}
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static int
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hci_call(ACPI_HANDLE h, int op, int function, UINT32 *arg)
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{
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ACPI_OBJECT_LIST args;
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ACPI_BUFFER results;
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ACPI_OBJECT obj[HCI_WORDS];
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ACPI_OBJECT *res;
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int status, i, ret;
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ACPI_SERIAL_ASSERT(toshiba);
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status = ENXIO;
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for (i = 0; i < HCI_WORDS; i++) {
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obj[i].Type = ACPI_TYPE_INTEGER;
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obj[i].Integer.Value = 0;
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}
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obj[HCI_REG_AX].Integer.Value = op;
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obj[HCI_REG_BX].Integer.Value = function;
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if (op == HCI_SET)
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obj[HCI_REG_CX].Integer.Value = *arg;
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args.Count = HCI_WORDS;
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args.Pointer = obj;
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results.Pointer = NULL;
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results.Length = ACPI_ALLOCATE_BUFFER;
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if (ACPI_FAILURE(AcpiEvaluateObject(h, METHOD_HCI, &args, &results)))
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goto end;
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res = (ACPI_OBJECT *)results.Pointer;
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if (!ACPI_PKG_VALID(res, HCI_WORDS)) {
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printf("toshiba: invalid package!\n");
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return (ENXIO);
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}
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acpi_PkgInt32(res, HCI_REG_AX, &ret);
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if (ret == HCI_SUCCESS) {
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if (op == HCI_GET)
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acpi_PkgInt32(res, HCI_REG_CX, arg);
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status = 0;
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} else if (function == HCI_REG_SYSTEM_EVENT && op == HCI_GET &&
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ret == HCI_NOT_SUPPORTED) {
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/*
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* Sometimes system events are disabled without us requesting
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* it. This workaround attempts to re-enable them.
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*
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* XXX This call probably shouldn't be recursive. Queueing
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* a task via AcpiOsQueueForExecution() might be better.
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*/
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i = 1;
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hci_call(h, HCI_SET, HCI_REG_SYSTEM_EVENT, &i);
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}
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end:
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if (results.Pointer != NULL)
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AcpiOsFree(results.Pointer);
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return (status);
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}
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/*
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* Perform a few actions based on the keypress. Users can extend this
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* functionality by reading the keystrokes we send to devd(8).
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*/
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static void
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hci_key_action(struct acpi_toshiba_softc *sc, ACPI_HANDLE h, UINT32 key)
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{
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UINT32 arg;
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ACPI_SERIAL_ASSERT(toshiba);
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switch (key) {
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case FN_F6_RELEASE:
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/* Decrease LCD brightness. */
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hci_lcd_brightness(h, HCI_GET, &arg);
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if (arg-- == 0)
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arg = 0;
|
|
else
|
|
hci_lcd_brightness(h, HCI_SET, &arg);
|
|
break;
|
|
case FN_F7_RELEASE:
|
|
/* Increase LCD brightness. */
|
|
hci_lcd_brightness(h, HCI_GET, &arg);
|
|
if (arg++ == 7)
|
|
arg = 7;
|
|
else
|
|
hci_lcd_brightness(h, HCI_SET, &arg);
|
|
break;
|
|
case FN_F5_RELEASE:
|
|
/* Cycle through video outputs. */
|
|
hci_video_output(h, HCI_GET, &arg);
|
|
arg = (arg + 1) % 7;
|
|
hci_video_output(sc->video_handle, HCI_SET, &arg);
|
|
break;
|
|
case FN_F8_RELEASE:
|
|
/* Toggle LCD backlight. */
|
|
hci_lcd_backlight(h, HCI_GET, &arg);
|
|
arg = (arg != 0) ? 0 : 1;
|
|
hci_lcd_backlight(h, HCI_SET, &arg);
|
|
break;
|
|
case FN_ESC_RELEASE:
|
|
/* Toggle forcing fan on. */
|
|
hci_force_fan(h, HCI_GET, &arg);
|
|
arg = (arg != 0) ? 0 : 1;
|
|
hci_force_fan(h, HCI_SET, &arg);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
acpi_toshiba_notify(ACPI_HANDLE h, UINT32 notify, void *context)
|
|
{
|
|
struct acpi_toshiba_softc *sc;
|
|
UINT32 key;
|
|
|
|
sc = (struct acpi_toshiba_softc *)context;
|
|
|
|
if (notify == 0x80) {
|
|
ACPI_SERIAL_BEGIN(toshiba);
|
|
while (hci_call(h, HCI_GET, HCI_REG_SYSTEM_EVENT, &key) == 0) {
|
|
hci_key_action(sc, h, key);
|
|
acpi_UserNotify("TOSHIBA", h, (uint8_t)key);
|
|
}
|
|
ACPI_SERIAL_END(toshiba);
|
|
} else
|
|
device_printf(sc->dev, "unknown notify: 0x%x\n", notify);
|
|
}
|
|
|
|
/*
|
|
* Toshiba video pseudo-device to provide the DSSX method.
|
|
*
|
|
* HID Model
|
|
* -------------------------------------
|
|
* TOS6201 Libretto L Series
|
|
*/
|
|
static int
|
|
acpi_toshiba_video_probe(device_t dev)
|
|
{
|
|
static char *vid_ids[] = { "TOS6201", NULL };
|
|
int rv;
|
|
|
|
if (acpi_disabled("toshiba") ||
|
|
device_get_unit(dev) != 0)
|
|
return (ENXIO);
|
|
|
|
device_quiet(dev);
|
|
rv = ACPI_ID_PROBE(device_get_parent(dev), dev, vid_ids, NULL);
|
|
if (rv <= 0)
|
|
device_set_desc(dev, "Toshiba Video");
|
|
return (rv);
|
|
}
|
|
|
|
static int
|
|
acpi_toshiba_video_attach(device_t dev)
|
|
{
|
|
struct acpi_toshiba_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
sc->video_handle = acpi_get_handle(dev);
|
|
return (0);
|
|
}
|