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kernel-ark/drivers/platform/x86/toshiba_acpi.c
Hans de Goede 358d6a2c3e toshiba_acpi: Do not register vendor backlight when acpi_video bl is available 
commit a39f46df33 ("toshiba_acpi: Fix regression caused by backlight extra
check code") causes the backlight to no longer work on the Toshiba Z30,
reverting that commit fixes this but restores the original issue fixed
by that commit.

Looking at the toshiba_acpi backlight code for a fix for this I noticed that
the toshiba code is the only code under platform/x86 which unconditionally
registers a vendor acpi backlight interface, without checking for acpi_video
backlight support first.

This commit adds the necessary checks bringing toshiba_acpi in line with the
other drivers, and fixing the Z30 regression without needing to revert the
commit causing it.

Chances are that there will be some Toshiba models which have a non working
acpi-video implementation while the toshiba vendor backlight interface does
work, this commit adds an empty dmi_id table where such systems can be added,
this is identical to how other drivers handle such systems.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1206036
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=86521
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-and-tested-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-04-24 11:08:53 -07:00

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/*
* toshiba_acpi.c - Toshiba Laptop ACPI Extras
*
* Copyright (C) 2002-2004 John Belmonte
* Copyright (C) 2008 Philip Langdale
* Copyright (C) 2010 Pierre Ducroquet
* Copyright (C) 2014-2015 Azael Avalos
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* The devolpment page for this driver is located at
* http://memebeam.org/toys/ToshibaAcpiDriver.
*
* Credits:
* Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
* engineering the Windows drivers
* Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
* Rob Miller - TV out and hotkeys help
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#define TOSHIBA_ACPI_VERSION "0.21"
#define PROC_INTERFACE_VERSION 1
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/backlight.h>
#include <linux/rfkill.h>
#include <linux/input.h>
#include <linux/input/sparse-keymap.h>
#include <linux/leds.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/i8042.h>
#include <linux/acpi.h>
#include <linux/dmi.h>
#include <linux/uaccess.h>
#include <acpi/video.h>
MODULE_AUTHOR("John Belmonte");
MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
MODULE_LICENSE("GPL");
#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
/* Scan code for Fn key on TOS1900 models */
#define TOS1900_FN_SCAN 0x6e
/* Toshiba ACPI method paths */
#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
/*
* The Toshiba configuration interface is composed of the HCI and the SCI,
* which are defined as follows:
*
* HCI is Toshiba's "Hardware Control Interface" which is supposed to
* be uniform across all their models. Ideally we would just call
* dedicated ACPI methods instead of using this primitive interface.
* However the ACPI methods seem to be incomplete in some areas (for
* example they allow setting, but not reading, the LCD brightness value),
* so this is still useful.
*
* SCI stands for "System Configuration Interface" which aim is to
* conceal differences in hardware between different models.
*/
#define TCI_WORDS 6
/* operations */
#define HCI_SET 0xff00
#define HCI_GET 0xfe00
#define SCI_OPEN 0xf100
#define SCI_CLOSE 0xf200
#define SCI_GET 0xf300
#define SCI_SET 0xf400
/* return codes */
#define TOS_SUCCESS 0x0000
#define TOS_OPEN_CLOSE_OK 0x0044
#define TOS_FAILURE 0x1000
#define TOS_NOT_SUPPORTED 0x8000
#define TOS_ALREADY_OPEN 0x8100
#define TOS_NOT_OPENED 0x8200
#define TOS_INPUT_DATA_ERROR 0x8300
#define TOS_WRITE_PROTECTED 0x8400
#define TOS_NOT_PRESENT 0x8600
#define TOS_FIFO_EMPTY 0x8c00
#define TOS_DATA_NOT_AVAILABLE 0x8d20
#define TOS_NOT_INITIALIZED 0x8d50
#define TOS_NOT_INSTALLED 0x8e00
/* registers */
#define HCI_FAN 0x0004
#define HCI_TR_BACKLIGHT 0x0005
#define HCI_SYSTEM_EVENT 0x0016
#define HCI_VIDEO_OUT 0x001c
#define HCI_HOTKEY_EVENT 0x001e
#define HCI_LCD_BRIGHTNESS 0x002a
#define HCI_WIRELESS 0x0056
#define HCI_ACCELEROMETER 0x006d
#define HCI_KBD_ILLUMINATION 0x0095
#define HCI_ECO_MODE 0x0097
#define HCI_ACCELEROMETER2 0x00a6
#define HCI_SYSTEM_INFO 0xc000
#define SCI_PANEL_POWER_ON 0x010d
#define SCI_ILLUMINATION 0x014e
#define SCI_USB_SLEEP_CHARGE 0x0150
#define SCI_KBD_ILLUM_STATUS 0x015c
#define SCI_USB_SLEEP_MUSIC 0x015e
#define SCI_USB_THREE 0x0169
#define SCI_TOUCHPAD 0x050e
#define SCI_KBD_FUNCTION_KEYS 0x0522
/* field definitions */
#define HCI_ACCEL_MASK 0x7fff
#define HCI_HOTKEY_DISABLE 0x0b
#define HCI_HOTKEY_ENABLE 0x09
#define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10
#define HCI_LCD_BRIGHTNESS_BITS 3
#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
#define HCI_MISC_SHIFT 0x10
#define HCI_SYSTEM_TYPE1 0x10
#define HCI_SYSTEM_TYPE2 0x11
#define HCI_VIDEO_OUT_LCD 0x1
#define HCI_VIDEO_OUT_CRT 0x2
#define HCI_VIDEO_OUT_TV 0x4
#define HCI_WIRELESS_KILL_SWITCH 0x01
#define HCI_WIRELESS_BT_PRESENT 0x0f
#define HCI_WIRELESS_BT_ATTACH 0x40
#define HCI_WIRELESS_BT_POWER 0x80
#define SCI_KBD_MODE_MASK 0x1f
#define SCI_KBD_MODE_FNZ 0x1
#define SCI_KBD_MODE_AUTO 0x2
#define SCI_KBD_MODE_ON 0x8
#define SCI_KBD_MODE_OFF 0x10
#define SCI_KBD_TIME_MAX 0x3c001a
#define SCI_USB_CHARGE_MODE_MASK 0xff
#define SCI_USB_CHARGE_DISABLED 0x00
#define SCI_USB_CHARGE_ALTERNATE 0x09
#define SCI_USB_CHARGE_TYPICAL 0x11
#define SCI_USB_CHARGE_AUTO 0x21
#define SCI_USB_CHARGE_BAT_MASK 0x7
#define SCI_USB_CHARGE_BAT_LVL_OFF 0x1
#define SCI_USB_CHARGE_BAT_LVL_ON 0x4
#define SCI_USB_CHARGE_BAT_LVL 0x0200
#define SCI_USB_CHARGE_RAPID_DSP 0x0300
struct toshiba_acpi_dev {
struct acpi_device *acpi_dev;
const char *method_hci;
struct rfkill *bt_rfk;
struct input_dev *hotkey_dev;
struct work_struct hotkey_work;
struct backlight_device *backlight_dev;
struct led_classdev led_dev;
struct led_classdev kbd_led;
struct led_classdev eco_led;
int force_fan;
int last_key_event;
int key_event_valid;
int kbd_type;
int kbd_mode;
int kbd_time;
int usbsc_bat_level;
int usbsc_mode_base;
int hotkey_event_type;
unsigned int illumination_supported:1;
unsigned int video_supported:1;
unsigned int fan_supported:1;
unsigned int system_event_supported:1;
unsigned int ntfy_supported:1;
unsigned int info_supported:1;
unsigned int tr_backlight_supported:1;
unsigned int kbd_illum_supported:1;
unsigned int kbd_led_registered:1;
unsigned int touchpad_supported:1;
unsigned int eco_supported:1;
unsigned int accelerometer_supported:1;
unsigned int usb_sleep_charge_supported:1;
unsigned int usb_rapid_charge_supported:1;
unsigned int usb_sleep_music_supported:1;
unsigned int kbd_function_keys_supported:1;
unsigned int panel_power_on_supported:1;
unsigned int usb_three_supported:1;
unsigned int sysfs_created:1;
struct mutex mutex;
};
static struct toshiba_acpi_dev *toshiba_acpi;
static const struct acpi_device_id toshiba_device_ids[] = {
{"TOS6200", 0},
{"TOS6207", 0},
{"TOS6208", 0},
{"TOS1900", 0},
{"", 0},
};
MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
static const struct key_entry toshiba_acpi_keymap[] = {
{ KE_KEY, 0x9e, { KEY_RFKILL } },
{ KE_KEY, 0x101, { KEY_MUTE } },
{ KE_KEY, 0x102, { KEY_ZOOMOUT } },
{ KE_KEY, 0x103, { KEY_ZOOMIN } },
{ KE_KEY, 0x10f, { KEY_TAB } },
{ KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
{ KE_KEY, 0x139, { KEY_ZOOMRESET } },
{ KE_KEY, 0x13b, { KEY_COFFEE } },
{ KE_KEY, 0x13c, { KEY_BATTERY } },
{ KE_KEY, 0x13d, { KEY_SLEEP } },
{ KE_KEY, 0x13e, { KEY_SUSPEND } },
{ KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
{ KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
{ KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
{ KE_KEY, 0x142, { KEY_WLAN } },
{ KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
{ KE_KEY, 0x17f, { KEY_FN } },
{ KE_KEY, 0xb05, { KEY_PROG2 } },
{ KE_KEY, 0xb06, { KEY_WWW } },
{ KE_KEY, 0xb07, { KEY_MAIL } },
{ KE_KEY, 0xb30, { KEY_STOP } },
{ KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
{ KE_KEY, 0xb32, { KEY_NEXTSONG } },
{ KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
{ KE_KEY, 0xb5a, { KEY_MEDIA } },
{ KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
{ KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
{ KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
{ KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
{ KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
{ KE_END, 0 },
};
static const struct key_entry toshiba_acpi_alt_keymap[] = {
{ KE_KEY, 0x157, { KEY_MUTE } },
{ KE_KEY, 0x102, { KEY_ZOOMOUT } },
{ KE_KEY, 0x103, { KEY_ZOOMIN } },
{ KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
{ KE_KEY, 0x139, { KEY_ZOOMRESET } },
{ KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
{ KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
{ KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
{ KE_KEY, 0x158, { KEY_WLAN } },
{ KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
{ KE_END, 0 },
};
/*
* List of models which have a broken acpi-video backlight interface and thus
* need to use the toshiba (vendor) interface instead.
*/
static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
{}
};
/*
* Utility
*/
static inline void _set_bit(u32 *word, u32 mask, int value)
{
*word = (*word & ~mask) | (mask * value);
}
/*
* ACPI interface wrappers
*/
static int write_acpi_int(const char *methodName, int val)
{
acpi_status status;
status = acpi_execute_simple_method(NULL, (char *)methodName, val);
return (status == AE_OK) ? 0 : -EIO;
}
/*
* Perform a raw configuration call. Here we don't care about input or output
* buffer format.
*/
static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
{
struct acpi_object_list params;
union acpi_object in_objs[TCI_WORDS];
struct acpi_buffer results;
union acpi_object out_objs[TCI_WORDS + 1];
acpi_status status;
int i;
params.count = TCI_WORDS;
params.pointer = in_objs;
for (i = 0; i < TCI_WORDS; ++i) {
in_objs[i].type = ACPI_TYPE_INTEGER;
in_objs[i].integer.value = in[i];
}
results.length = sizeof(out_objs);
results.pointer = out_objs;
status = acpi_evaluate_object(dev->acpi_dev->handle,
(char *)dev->method_hci, &params,
&results);
if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
for (i = 0; i < out_objs->package.count; ++i)
out[i] = out_objs->package.elements[i].integer.value;
}
return status;
}
/*
* Common hci tasks (get or set one or two value)
*
* In addition to the ACPI status, the HCI system returns a result which
* may be useful (such as "not supported").
*/
static u32 hci_write1(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
{
u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status = tci_raw(dev, in, out);
return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
}
static u32 hci_read1(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
{
u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status))
return TOS_FAILURE;
*out1 = out[2];
return out[0];
}
static u32 hci_write2(struct toshiba_acpi_dev *dev, u32 reg, u32 in1, u32 in2)
{
u32 in[TCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status = tci_raw(dev, in, out);
return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
}
static u32 hci_read2(struct toshiba_acpi_dev *dev,
u32 reg, u32 *out1, u32 *out2)
{
u32 in[TCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status))
return TOS_FAILURE;
*out1 = out[2];
*out2 = out[3];
return out[0];
}
/*
* Common sci tasks
*/
static int sci_open(struct toshiba_acpi_dev *dev)
{
u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status;
status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == TOS_FAILURE) {
pr_err("ACPI call to open SCI failed\n");
return 0;
}
if (out[0] == TOS_OPEN_CLOSE_OK) {
return 1;
} else if (out[0] == TOS_ALREADY_OPEN) {
pr_info("Toshiba SCI already opened\n");
return 1;
} else if (out[0] == TOS_NOT_SUPPORTED) {
/*
* Some BIOSes do not have the SCI open/close functions
* implemented and return 0x8000 (Not Supported), failing to
* register some supported features.
*
* Simply return 1 if we hit those affected laptops to make the
* supported features work.
*
* In the case that some laptops really do not support the SCI,
* all the SCI dependent functions check for TOS_NOT_SUPPORTED,
* and thus, not registering support for the queried feature.
*/
return 1;
} else if (out[0] == TOS_NOT_PRESENT) {
pr_info("Toshiba SCI is not present\n");
}
return 0;
}
static void sci_close(struct toshiba_acpi_dev *dev)
{
u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status;
status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == TOS_FAILURE) {
pr_err("ACPI call to close SCI failed\n");
return;
}
if (out[0] == TOS_OPEN_CLOSE_OK)
return;
else if (out[0] == TOS_NOT_OPENED)
pr_info("Toshiba SCI not opened\n");
else if (out[0] == TOS_NOT_PRESENT)
pr_info("Toshiba SCI is not present\n");
}
static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
{
u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status))
return TOS_FAILURE;
*out1 = out[2];
return out[0];
}
static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
{
u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status = tci_raw(dev, in, out);
return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
}
/* Illumination support */
static int toshiba_illumination_available(struct toshiba_acpi_dev *dev)
{
u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status;
if (!sci_open(dev))
return 0;
status = tci_raw(dev, in, out);
sci_close(dev);
if (ACPI_FAILURE(status) || out[0] == TOS_FAILURE) {
pr_err("ACPI call to query Illumination support failed\n");
return 0;
} else if (out[0] == TOS_NOT_SUPPORTED) {
pr_info("Illumination device not available\n");
return 0;
}
return 1;
}
static void toshiba_illumination_set(struct led_classdev *cdev,
enum led_brightness brightness)
{
struct toshiba_acpi_dev *dev = container_of(cdev,
struct toshiba_acpi_dev, led_dev);
u32 state, result;
/* First request : initialize communication. */
if (!sci_open(dev))
return;
/* Switch the illumination on/off */
state = brightness ? 1 : 0;
result = sci_write(dev, SCI_ILLUMINATION, state);
sci_close(dev);
if (result == TOS_FAILURE) {
pr_err("ACPI call for illumination failed\n");
return;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("Illumination not supported\n");
return;
}
}
static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
{
struct toshiba_acpi_dev *dev = container_of(cdev,
struct toshiba_acpi_dev, led_dev);
u32 state, result;
/* First request : initialize communication. */
if (!sci_open(dev))
return LED_OFF;
/* Check the illumination */
result = sci_read(dev, SCI_ILLUMINATION, &state);
sci_close(dev);
if (result == TOS_FAILURE || result == TOS_INPUT_DATA_ERROR) {
pr_err("ACPI call for illumination failed\n");
return LED_OFF;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("Illumination not supported\n");
return LED_OFF;
}
return state ? LED_FULL : LED_OFF;
}
/* KBD Illumination */
static int toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
{
u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status;
if (!sci_open(dev))
return 0;
status = tci_raw(dev, in, out);
sci_close(dev);
if (ACPI_FAILURE(status) || out[0] == TOS_INPUT_DATA_ERROR) {
pr_err("ACPI call to query kbd illumination support failed\n");
return 0;
} else if (out[0] == TOS_NOT_SUPPORTED) {
pr_info("Keyboard illumination not available\n");
return 0;
}
/*
* Check for keyboard backlight timeout max value,
* previous kbd backlight implementation set this to
* 0x3c0003, and now the new implementation set this
* to 0x3c001a, use this to distinguish between them.
*/
if (out[3] == SCI_KBD_TIME_MAX)
dev->kbd_type = 2;
else
dev->kbd_type = 1;
/* Get the current keyboard backlight mode */
dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
/* Get the current time (1-60 seconds) */
dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
return 1;
}
static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
{
u32 result;
if (!sci_open(dev))
return -EIO;
result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
sci_close(dev);
if (result == TOS_FAILURE || result == TOS_INPUT_DATA_ERROR) {
pr_err("ACPI call to set KBD backlight status failed\n");
return -EIO;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("Keyboard backlight status not supported\n");
return -ENODEV;
}
return 0;
}
static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
{
u32 result;
if (!sci_open(dev))
return -EIO;
result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
sci_close(dev);
if (result == TOS_FAILURE || result == TOS_INPUT_DATA_ERROR) {
pr_err("ACPI call to get KBD backlight status failed\n");
return -EIO;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("Keyboard backlight status not supported\n");
return -ENODEV;
}
return 0;
}
static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
{
struct toshiba_acpi_dev *dev = container_of(cdev,
struct toshiba_acpi_dev, kbd_led);
u32 state, result;
/* Check the keyboard backlight state */
result = hci_read1(dev, HCI_KBD_ILLUMINATION, &state);
if (result == TOS_FAILURE || result == TOS_INPUT_DATA_ERROR) {
pr_err("ACPI call to get the keyboard backlight failed\n");
return LED_OFF;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("Keyboard backlight not supported\n");
return LED_OFF;
}
return state ? LED_FULL : LED_OFF;
}
static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
enum led_brightness brightness)
{
struct toshiba_acpi_dev *dev = container_of(cdev,
struct toshiba_acpi_dev, kbd_led);
u32 state, result;
/* Set the keyboard backlight state */
state = brightness ? 1 : 0;
result = hci_write1(dev, HCI_KBD_ILLUMINATION, state);
if (result == TOS_FAILURE || result == TOS_INPUT_DATA_ERROR) {
pr_err("ACPI call to set KBD Illumination mode failed\n");
return;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("Keyboard backlight not supported\n");
return;
}
}
/* TouchPad support */
static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
{
u32 result;
if (!sci_open(dev))
return -EIO;
result = sci_write(dev, SCI_TOUCHPAD, state);
sci_close(dev);
if (result == TOS_FAILURE) {
pr_err("ACPI call to set the touchpad failed\n");
return -EIO;
} else if (result == TOS_NOT_SUPPORTED) {
return -ENODEV;
}
return 0;
}
static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
{
u32 result;
if (!sci_open(dev))
return -EIO;
result = sci_read(dev, SCI_TOUCHPAD, state);
sci_close(dev);
if (result == TOS_FAILURE) {
pr_err("ACPI call to query the touchpad failed\n");
return -EIO;
} else if (result == TOS_NOT_SUPPORTED) {
return -ENODEV;
}
return 0;
}
/* Eco Mode support */
static int toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
{
acpi_status status;
u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
u32 out[TCI_WORDS];
status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == TOS_FAILURE) {
pr_err("ACPI call to get ECO led failed\n");
} else if (out[0] == TOS_NOT_INSTALLED) {
pr_info("ECO led not installed");
} else if (out[0] == TOS_INPUT_DATA_ERROR) {
/*
* If we receive 0x8300 (Input Data Error), it means that the
* LED device is present, but that we just screwed the input
* parameters.
*
* Let's query the status of the LED to see if we really have a
* success response, indicating the actual presense of the LED,
* bail out otherwise.
*/
in[3] = 1;
status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == TOS_FAILURE)
pr_err("ACPI call to get ECO led failed\n");
else if (out[0] == TOS_SUCCESS)
return 1;
}
return 0;
}
static enum led_brightness
toshiba_eco_mode_get_status(struct led_classdev *cdev)
{
struct toshiba_acpi_dev *dev = container_of(cdev,
struct toshiba_acpi_dev, eco_led);
u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status;
status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == TOS_INPUT_DATA_ERROR) {
pr_err("ACPI call to get ECO led failed\n");
return LED_OFF;
}
return out[2] ? LED_FULL : LED_OFF;
}
static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
enum led_brightness brightness)
{
struct toshiba_acpi_dev *dev = container_of(cdev,
struct toshiba_acpi_dev, eco_led);
u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status;
/* Switch the Eco Mode led on/off */
in[2] = (brightness) ? 1 : 0;
status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == TOS_INPUT_DATA_ERROR) {
pr_err("ACPI call to set ECO led failed\n");
return;
}
}
/* Accelerometer support */
static int toshiba_accelerometer_supported(struct toshiba_acpi_dev *dev)
{
u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status;
/*
* Check if the accelerometer call exists,
* this call also serves as initialization
*/
status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == TOS_INPUT_DATA_ERROR) {
pr_err("ACPI call to query the accelerometer failed\n");
return -EIO;
} else if (out[0] == TOS_DATA_NOT_AVAILABLE ||
out[0] == TOS_NOT_INITIALIZED) {
pr_err("Accelerometer not initialized\n");
return -EIO;
} else if (out[0] == TOS_NOT_SUPPORTED) {
pr_info("Accelerometer not supported\n");
return -ENODEV;
}
return 0;
}
static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
u32 *xy, u32 *z)
{
u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status;
/* Check the Accelerometer status */
status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == TOS_INPUT_DATA_ERROR) {
pr_err("ACPI call to query the accelerometer failed\n");
return -EIO;
}
*xy = out[2];
*z = out[4];
return 0;
}
/* Sleep (Charge and Music) utilities support */
static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
{
u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status;
/* Set the feature to "not supported" in case of error */
dev->usb_sleep_charge_supported = 0;
if (!sci_open(dev))
return;
status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == TOS_FAILURE) {
pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
sci_close(dev);
return;
} else if (out[0] == TOS_NOT_SUPPORTED) {
pr_info("USB Sleep and Charge not supported\n");
sci_close(dev);
return;
} else if (out[0] == TOS_SUCCESS) {
dev->usbsc_mode_base = out[4];
}
in[5] = SCI_USB_CHARGE_BAT_LVL;
status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status) || out[0] == TOS_FAILURE) {
pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
sci_close(dev);
return;
} else if (out[0] == TOS_NOT_SUPPORTED) {
pr_info("USB Sleep and Charge not supported\n");
sci_close(dev);
return;
} else if (out[0] == TOS_SUCCESS) {
dev->usbsc_bat_level = out[2];
/*
* If we reach this point, it means that the laptop has support
* for this feature and all values are initialized.
* Set it as supported.
*/
dev->usb_sleep_charge_supported = 1;
}
sci_close(dev);
}
static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
u32 *mode)
{
u32 result;
if (!sci_open(dev))
return -EIO;
result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
sci_close(dev);
if (result == TOS_FAILURE) {
pr_err("ACPI call to set USB S&C mode failed\n");
return -EIO;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("USB Sleep and Charge not supported\n");
return -ENODEV;
} else if (result == TOS_INPUT_DATA_ERROR) {
return -EIO;
}
return 0;
}
static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
u32 mode)
{
u32 result;
if (!sci_open(dev))
return -EIO;
result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
sci_close(dev);
if (result == TOS_FAILURE) {
pr_err("ACPI call to set USB S&C mode failed\n");
return -EIO;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("USB Sleep and Charge not supported\n");
return -ENODEV;
} else if (result == TOS_INPUT_DATA_ERROR) {
return -EIO;
}
return 0;
}
static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
u32 *mode)
{
u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status;
if (!sci_open(dev))
return -EIO;
in[5] = SCI_USB_CHARGE_BAT_LVL;
status = tci_raw(dev, in, out);
sci_close(dev);
if (ACPI_FAILURE(status) || out[0] == TOS_FAILURE) {
pr_err("ACPI call to get USB S&C battery level failed\n");
return -EIO;
} else if (out[0] == TOS_NOT_SUPPORTED) {
pr_info("USB Sleep and Charge not supported\n");
return -ENODEV;
} else if (out[0] == TOS_INPUT_DATA_ERROR) {
return -EIO;
}
*mode = out[2];
return 0;
}
static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
u32 mode)
{
u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status;
if (!sci_open(dev))
return -EIO;
in[2] = mode;
in[5] = SCI_USB_CHARGE_BAT_LVL;
status = tci_raw(dev, in, out);
sci_close(dev);
if (ACPI_FAILURE(status) || out[0] == TOS_FAILURE) {
pr_err("ACPI call to set USB S&C battery level failed\n");
return -EIO;
} else if (out[0] == TOS_NOT_SUPPORTED) {
pr_info("USB Sleep and Charge not supported\n");
return -ENODEV;
} else if (out[0] == TOS_INPUT_DATA_ERROR) {
return -EIO;
}
return 0;
}
static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
u32 *state)
{
u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status;
if (!sci_open(dev))
return -EIO;
in[5] = SCI_USB_CHARGE_RAPID_DSP;
status = tci_raw(dev, in, out);
sci_close(dev);
if (ACPI_FAILURE(status) || out[0] == TOS_FAILURE) {
pr_err("ACPI call to get USB Rapid Charge failed\n");
return -EIO;
} else if (out[0] == TOS_NOT_SUPPORTED ||
out[0] == TOS_INPUT_DATA_ERROR) {
pr_info("USB Rapid Charge not supported\n");
return -ENODEV;
}
*state = out[2];
return 0;
}
static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
u32 state)
{
u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status;
if (!sci_open(dev))
return -EIO;
in[2] = state;
in[5] = SCI_USB_CHARGE_RAPID_DSP;
status = tci_raw(dev, in, out);
sci_close(dev);
if (ACPI_FAILURE(status) || out[0] == TOS_FAILURE) {
pr_err("ACPI call to set USB Rapid Charge failed\n");
return -EIO;
} else if (out[0] == TOS_NOT_SUPPORTED) {
pr_info("USB Rapid Charge not supported\n");
return -ENODEV;
} else if (out[0] == TOS_INPUT_DATA_ERROR) {
return -EIO;
}
return 0;
}
static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
{
u32 result;
if (!sci_open(dev))
return -EIO;
result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
sci_close(dev);
if (result == TOS_FAILURE) {
pr_err("ACPI call to get Sleep and Music failed\n");
return -EIO;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("Sleep and Music not supported\n");
return -ENODEV;
} else if (result == TOS_INPUT_DATA_ERROR) {
return -EIO;
}
return 0;
}
static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
{
u32 result;
if (!sci_open(dev))
return -EIO;
result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
sci_close(dev);
if (result == TOS_FAILURE) {
pr_err("ACPI call to set Sleep and Music failed\n");
return -EIO;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("Sleep and Music not supported\n");
return -ENODEV;
} else if (result == TOS_INPUT_DATA_ERROR) {
return -EIO;
}
return 0;
}
/* Keyboard function keys */
static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
{
u32 result;
if (!sci_open(dev))
return -EIO;
result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
sci_close(dev);
if (result == TOS_FAILURE || result == TOS_INPUT_DATA_ERROR) {
pr_err("ACPI call to get KBD function keys failed\n");
return -EIO;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("KBD function keys not supported\n");
return -ENODEV;
}
return 0;
}
static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
{
u32 result;
if (!sci_open(dev))
return -EIO;
result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
sci_close(dev);
if (result == TOS_FAILURE || result == TOS_INPUT_DATA_ERROR) {
pr_err("ACPI call to set KBD function keys failed\n");
return -EIO;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("KBD function keys not supported\n");
return -ENODEV;
}
return 0;
}
/* Panel Power ON */
static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
{
u32 result;
if (!sci_open(dev))
return -EIO;
result = sci_read(dev, SCI_PANEL_POWER_ON, state);
sci_close(dev);
if (result == TOS_FAILURE) {
pr_err("ACPI call to get Panel Power ON failed\n");
return -EIO;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("Panel Power on not supported\n");
return -ENODEV;
} else if (result == TOS_INPUT_DATA_ERROR) {
return -EIO;
}
return 0;
}
static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
{
u32 result;
if (!sci_open(dev))
return -EIO;
result = sci_write(dev, SCI_PANEL_POWER_ON, state);
sci_close(dev);
if (result == TOS_FAILURE) {
pr_err("ACPI call to set Panel Power ON failed\n");
return -EIO;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("Panel Power ON not supported\n");
return -ENODEV;
} else if (result == TOS_INPUT_DATA_ERROR) {
return -EIO;
}
return 0;
}
/* USB Three */
static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
{
u32 result;
if (!sci_open(dev))
return -EIO;
result = sci_read(dev, SCI_USB_THREE, state);
sci_close(dev);
if (result == TOS_FAILURE) {
pr_err("ACPI call to get USB 3 failed\n");
return -EIO;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("USB 3 not supported\n");
return -ENODEV;
} else if (result == TOS_INPUT_DATA_ERROR) {
return -EIO;
}
return 0;
}
static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
{
u32 result;
if (!sci_open(dev))
return -EIO;
result = sci_write(dev, SCI_USB_THREE, state);
sci_close(dev);
if (result == TOS_FAILURE) {
pr_err("ACPI call to set USB 3 failed\n");
return -EIO;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("USB 3 not supported\n");
return -ENODEV;
} else if (result == TOS_INPUT_DATA_ERROR) {
return -EIO;
}
return 0;
}
/* Hotkey Event type */
static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
u32 *type)
{
u32 val1 = 0x03;
u32 val2 = 0;
u32 result;
result = hci_read2(dev, HCI_SYSTEM_INFO, &val1, &val2);
if (result == TOS_FAILURE) {
pr_err("ACPI call to get System type failed\n");
return -EIO;
} else if (result == TOS_NOT_SUPPORTED) {
pr_info("System type not supported\n");
return -ENODEV;
}
*type = val2;
return 0;
}
/* Bluetooth rfkill handlers */
static u32 hci_get_bt_present(struct toshiba_acpi_dev *dev, bool *present)
{
u32 hci_result;
u32 value, value2;
value = 0;
value2 = 0;
hci_result = hci_read2(dev, HCI_WIRELESS, &value, &value2);
if (hci_result == TOS_SUCCESS)
*present = (value & HCI_WIRELESS_BT_PRESENT) ? true : false;
return hci_result;
}
static u32 hci_get_radio_state(struct toshiba_acpi_dev *dev, bool *radio_state)
{
u32 hci_result;
u32 value, value2;
value = 0;
value2 = 0x0001;
hci_result = hci_read2(dev, HCI_WIRELESS, &value, &value2);
*radio_state = value & HCI_WIRELESS_KILL_SWITCH;
return hci_result;
}
static int bt_rfkill_set_block(void *data, bool blocked)
{
struct toshiba_acpi_dev *dev = data;
u32 result1, result2;
u32 value;
int err;
bool radio_state;
value = (blocked == false);
mutex_lock(&dev->mutex);
if (hci_get_radio_state(dev, &radio_state) != TOS_SUCCESS) {
err = -EIO;
goto out;
}
if (!radio_state) {
err = 0;
goto out;
}
result1 = hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_POWER);
result2 = hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_ATTACH);
if (result1 != TOS_SUCCESS || result2 != TOS_SUCCESS)
err = -EIO;
else
err = 0;
out:
mutex_unlock(&dev->mutex);
return err;
}
static void bt_rfkill_poll(struct rfkill *rfkill, void *data)
{
bool new_rfk_state;
bool value;
u32 hci_result;
struct toshiba_acpi_dev *dev = data;
mutex_lock(&dev->mutex);
hci_result = hci_get_radio_state(dev, &value);
if (hci_result != TOS_SUCCESS) {
/* Can't do anything useful */
mutex_unlock(&dev->mutex);
return;
}
new_rfk_state = value;
mutex_unlock(&dev->mutex);
if (rfkill_set_hw_state(rfkill, !new_rfk_state))
bt_rfkill_set_block(data, true);
}
static const struct rfkill_ops toshiba_rfk_ops = {
.set_block = bt_rfkill_set_block,
.poll = bt_rfkill_poll,
};
static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, bool *enabled)
{
u32 hci_result;
u32 status;
hci_result = hci_read1(dev, HCI_TR_BACKLIGHT, &status);
*enabled = !status;
return hci_result == TOS_SUCCESS ? 0 : -EIO;
}
static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, bool enable)
{
u32 hci_result;
u32 value = !enable;
hci_result = hci_write1(dev, HCI_TR_BACKLIGHT, value);
return hci_result == TOS_SUCCESS ? 0 : -EIO;
}
static struct proc_dir_entry *toshiba_proc_dir /*= 0*/;
static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
{
u32 hci_result;
u32 value;
int brightness = 0;
if (dev->tr_backlight_supported) {
bool enabled;
int ret = get_tr_backlight_status(dev, &enabled);
if (ret)
return ret;
if (enabled)
return 0;
brightness++;
}
hci_result = hci_read1(dev, HCI_LCD_BRIGHTNESS, &value);
if (hci_result == TOS_SUCCESS)
return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT);
return -EIO;
}
static int get_lcd_brightness(struct backlight_device *bd)
{
struct toshiba_acpi_dev *dev = bl_get_data(bd);
return __get_lcd_brightness(dev);
}
static int lcd_proc_show(struct seq_file *m, void *v)
{
struct toshiba_acpi_dev *dev = m->private;
int value;
int levels;
if (!dev->backlight_dev)
return -ENODEV;
levels = dev->backlight_dev->props.max_brightness + 1;
value = get_lcd_brightness(dev->backlight_dev);
if (value >= 0) {
seq_printf(m, "brightness: %d\n", value);
seq_printf(m, "brightness_levels: %d\n", levels);
return 0;
}
pr_err("Error reading LCD brightness\n");
return -EIO;
}
static int lcd_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, lcd_proc_show, PDE_DATA(inode));
}
static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
{
u32 hci_result;
if (dev->tr_backlight_supported) {
bool enable = !value;
int ret = set_tr_backlight_status(dev, enable);
if (ret)
return ret;
if (value)
value--;
}
value = value << HCI_LCD_BRIGHTNESS_SHIFT;
hci_result = hci_write1(dev, HCI_LCD_BRIGHTNESS, value);
return hci_result == TOS_SUCCESS ? 0 : -EIO;
}
static int set_lcd_status(struct backlight_device *bd)
{
struct toshiba_acpi_dev *dev = bl_get_data(bd);
return set_lcd_brightness(dev, bd->props.brightness);
}
static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
size_t count, loff_t *pos)
{
struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
char cmd[42];
size_t len;
int value;
int ret;
int levels = dev->backlight_dev->props.max_brightness + 1;
len = min(count, sizeof(cmd) - 1);
if (copy_from_user(cmd, buf, len))
return -EFAULT;
cmd[len] = '\0';
if (sscanf(cmd, " brightness : %i", &value) == 1 &&
value >= 0 && value < levels) {
ret = set_lcd_brightness(dev, value);
if (ret == 0)
ret = count;
} else {
ret = -EINVAL;
}
return ret;
}
static const struct file_operations lcd_proc_fops = {
.owner = THIS_MODULE,
.open = lcd_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = lcd_proc_write,
};
static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
{
u32 hci_result;
hci_result = hci_read1(dev, HCI_VIDEO_OUT, status);
return hci_result == TOS_SUCCESS ? 0 : -EIO;
}
static int video_proc_show(struct seq_file *m, void *v)
{
struct toshiba_acpi_dev *dev = m->private;
u32 value;
int ret;
ret = get_video_status(dev, &value);
if (!ret) {
int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
seq_printf(m, "lcd_out: %d\n", is_lcd);
seq_printf(m, "crt_out: %d\n", is_crt);
seq_printf(m, "tv_out: %d\n", is_tv);
}
return ret;
}
static int video_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, video_proc_show, PDE_DATA(inode));
}
static ssize_t video_proc_write(struct file *file, const char __user *buf,
size_t count, loff_t *pos)
{
struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
char *cmd, *buffer;
int ret;
int value;
int remain = count;
int lcd_out = -1;
int crt_out = -1;
int tv_out = -1;
u32 video_out;
cmd = kmalloc(count + 1, GFP_KERNEL);
if (!cmd)
return -ENOMEM;
if (copy_from_user(cmd, buf, count)) {
kfree(cmd);
return -EFAULT;
}
cmd[count] = '\0';
buffer = cmd;
/*
* Scan expression. Multiple expressions may be delimited with ;
* NOTE: To keep scanning simple, invalid fields are ignored.
*/
while (remain) {
if (sscanf(buffer, " lcd_out : %i", &value) == 1)
lcd_out = value & 1;
else if (sscanf(buffer, " crt_out : %i", &value) == 1)
crt_out = value & 1;
else if (sscanf(buffer, " tv_out : %i", &value) == 1)
tv_out = value & 1;
/* Advance to one character past the next ; */
do {
++buffer;
--remain;
} while (remain && *(buffer - 1) != ';');
}
kfree(cmd);
ret = get_video_status(dev, &video_out);
if (!ret) {
unsigned int new_video_out = video_out;
if (lcd_out != -1)
_set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
if (crt_out != -1)
_set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
if (tv_out != -1)
_set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
/*
* To avoid unnecessary video disruption, only write the new
* video setting if something changed. */
if (new_video_out != video_out)
ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
}
return ret ? ret : count;
}
static const struct file_operations video_proc_fops = {
.owner = THIS_MODULE,
.open = video_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = video_proc_write,
};
static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
{
u32 hci_result;
hci_result = hci_read1(dev, HCI_FAN, status);
return hci_result == TOS_SUCCESS ? 0 : -EIO;
}
static int fan_proc_show(struct seq_file *m, void *v)
{
struct toshiba_acpi_dev *dev = m->private;
int ret;
u32 value;
ret = get_fan_status(dev, &value);
if (!ret) {
seq_printf(m, "running: %d\n", (value > 0));
seq_printf(m, "force_on: %d\n", dev->force_fan);
}
return ret;
}
static int fan_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, fan_proc_show, PDE_DATA(inode));
}
static ssize_t fan_proc_write(struct file *file, const char __user *buf,
size_t count, loff_t *pos)
{
struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
char cmd[42];
size_t len;
int value;
u32 hci_result;
len = min(count, sizeof(cmd) - 1);
if (copy_from_user(cmd, buf, len))
return -EFAULT;
cmd[len] = '\0';
if (sscanf(cmd, " force_on : %i", &value) == 1 &&
value >= 0 && value <= 1) {
hci_result = hci_write1(dev, HCI_FAN, value);
if (hci_result == TOS_SUCCESS)
dev->force_fan = value;
else
return -EIO;
} else {
return -EINVAL;
}
return count;
}
static const struct file_operations fan_proc_fops = {
.owner = THIS_MODULE,
.open = fan_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = fan_proc_write,
};
static int keys_proc_show(struct seq_file *m, void *v)
{
struct toshiba_acpi_dev *dev = m->private;
u32 hci_result;
u32 value;
if (!dev->key_event_valid && dev->system_event_supported) {
hci_result = hci_read1(dev, HCI_SYSTEM_EVENT, &value);
if (hci_result == TOS_SUCCESS) {
dev->key_event_valid = 1;
dev->last_key_event = value;
} else if (hci_result == TOS_FIFO_EMPTY) {
/* Better luck next time */
} else if (hci_result == TOS_NOT_SUPPORTED) {
/*
* This is a workaround for an unresolved issue on
* some machines where system events sporadically
* become disabled.
*/
hci_result = hci_write1(dev, HCI_SYSTEM_EVENT, 1);
pr_notice("Re-enabled hotkeys\n");
} else {
pr_err("Error reading hotkey status\n");
return -EIO;
}
}
seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
return 0;
}
static int keys_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, keys_proc_show, PDE_DATA(inode));
}
static ssize_t keys_proc_write(struct file *file, const char __user *buf,
size_t count, loff_t *pos)
{
struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
char cmd[42];
size_t len;
int value;
len = min(count, sizeof(cmd) - 1);
if (copy_from_user(cmd, buf, len))
return -EFAULT;
cmd[len] = '\0';
if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
dev->key_event_valid = 0;
else
return -EINVAL;
return count;
}
static const struct file_operations keys_proc_fops = {
.owner = THIS_MODULE,
.open = keys_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = keys_proc_write,
};
static int version_proc_show(struct seq_file *m, void *v)
{
seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
return 0;
}
static int version_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, version_proc_show, PDE_DATA(inode));
}
static const struct file_operations version_proc_fops = {
.owner = THIS_MODULE,
.open = version_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
/*
* Proc and module init
*/
#define PROC_TOSHIBA "toshiba"
static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
{
if (dev->backlight_dev)
proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
&lcd_proc_fops, dev);
if (dev->video_supported)
proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
&video_proc_fops, dev);
if (dev->fan_supported)
proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
&fan_proc_fops, dev);
if (dev->hotkey_dev)
proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
&keys_proc_fops, dev);
proc_create_data("version", S_IRUGO, toshiba_proc_dir,
&version_proc_fops, dev);
}
static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
{
if (dev->backlight_dev)
remove_proc_entry("lcd", toshiba_proc_dir);
if (dev->video_supported)
remove_proc_entry("video", toshiba_proc_dir);
if (dev->fan_supported)
remove_proc_entry("fan", toshiba_proc_dir);
if (dev->hotkey_dev)
remove_proc_entry("keys", toshiba_proc_dir);
remove_proc_entry("version", toshiba_proc_dir);
}
static const struct backlight_ops toshiba_backlight_data = {
.options = BL_CORE_SUSPENDRESUME,
.get_brightness = get_lcd_brightness,
.update_status = set_lcd_status,
};
/*
* Sysfs files
*/
static ssize_t version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
}
static DEVICE_ATTR_RO(version);
static ssize_t fan_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
u32 result;
int state;
int ret;
ret = kstrtoint(buf, 0, &state);
if (ret)
return ret;
if (state != 0 && state != 1)
return -EINVAL;
result = hci_write1(toshiba, HCI_FAN, state);
if (result == TOS_FAILURE)
return -EIO;
else if (result == TOS_NOT_SUPPORTED)
return -ENODEV;
return count;
}
static ssize_t fan_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
u32 value;
int ret;
ret = get_fan_status(toshiba, &value);
if (ret)
return ret;
return sprintf(buf, "%d\n", value);
}
static DEVICE_ATTR_RW(fan);
static ssize_t kbd_backlight_mode_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
int mode;
int time;
int ret;
ret = kstrtoint(buf, 0, &mode);
if (ret)
return ret;
/* Check for supported modes depending on keyboard backlight type */
if (toshiba->kbd_type == 1) {
/* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
return -EINVAL;
} else if (toshiba->kbd_type == 2) {
/* Type 2 doesn't support SCI_KBD_MODE_FNZ */
if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
mode != SCI_KBD_MODE_OFF)
return -EINVAL;
}
/*
* Set the Keyboard Backlight Mode where:
* Auto - KBD backlight turns off automatically in given time
* FN-Z - KBD backlight "toggles" when hotkey pressed
* ON - KBD backlight is always on
* OFF - KBD backlight is always off
*/
/* Only make a change if the actual mode has changed */
if (toshiba->kbd_mode != mode) {
/* Shift the time to "base time" (0x3c0000 == 60 seconds) */
time = toshiba->kbd_time << HCI_MISC_SHIFT;
/* OR the "base time" to the actual method format */
if (toshiba->kbd_type == 1) {
/* Type 1 requires the current mode */
time |= toshiba->kbd_mode;
} else if (toshiba->kbd_type == 2) {
/* Type 2 requires the desired mode */
time |= mode;
}
ret = toshiba_kbd_illum_status_set(toshiba, time);
if (ret)
return ret;
toshiba->kbd_mode = mode;
}
return count;
}
static ssize_t kbd_backlight_mode_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
u32 time;
if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
return -EIO;
return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
}
static DEVICE_ATTR_RW(kbd_backlight_mode);
static ssize_t kbd_type_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
return sprintf(buf, "%d\n", toshiba->kbd_type);
}
static DEVICE_ATTR_RO(kbd_type);
static ssize_t available_kbd_modes_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
if (toshiba->kbd_type == 1)
return sprintf(buf, "%x %x\n",
SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
return sprintf(buf, "%x %x %x\n",
SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
}
static DEVICE_ATTR_RO(available_kbd_modes);
static ssize_t kbd_backlight_timeout_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
int time;
int ret;
ret = kstrtoint(buf, 0, &time);
if (ret)
return ret;
/* Check for supported values depending on kbd_type */
if (toshiba->kbd_type == 1) {
if (time < 0 || time > 60)
return -EINVAL;
} else if (toshiba->kbd_type == 2) {
if (time < 1 || time > 60)
return -EINVAL;
}
/* Set the Keyboard Backlight Timeout */
/* Only make a change if the actual timeout has changed */
if (toshiba->kbd_time != time) {
/* Shift the time to "base time" (0x3c0000 == 60 seconds) */
time = time << HCI_MISC_SHIFT;
/* OR the "base time" to the actual method format */
if (toshiba->kbd_type == 1)
time |= SCI_KBD_MODE_FNZ;
else if (toshiba->kbd_type == 2)
time |= SCI_KBD_MODE_AUTO;
ret = toshiba_kbd_illum_status_set(toshiba, time);
if (ret)
return ret;
toshiba->kbd_time = time >> HCI_MISC_SHIFT;
}
return count;
}
static ssize_t kbd_backlight_timeout_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
u32 time;
if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
return -EIO;
return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
}
static DEVICE_ATTR_RW(kbd_backlight_timeout);
static ssize_t touchpad_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
int state;
int ret;
/* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
ret = kstrtoint(buf, 0, &state);
if (ret)
return ret;
if (state != 0 && state != 1)
return -EINVAL;
ret = toshiba_touchpad_set(toshiba, state);
if (ret)
return ret;
return count;
}
static ssize_t touchpad_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
u32 state;
int ret;
ret = toshiba_touchpad_get(toshiba, &state);
if (ret < 0)
return ret;
return sprintf(buf, "%i\n", state);
}
static DEVICE_ATTR_RW(touchpad);
static ssize_t position_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
u32 xyval, zval, tmp;
u16 x, y, z;
int ret;
xyval = zval = 0;
ret = toshiba_accelerometer_get(toshiba, &xyval, &zval);
if (ret < 0)
return ret;
x = xyval & HCI_ACCEL_MASK;
tmp = xyval >> HCI_MISC_SHIFT;
y = tmp & HCI_ACCEL_MASK;
z = zval & HCI_ACCEL_MASK;
return sprintf(buf, "%d %d %d\n", x, y, z);
}
static DEVICE_ATTR_RO(position);
static ssize_t usb_sleep_charge_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
u32 mode;
int ret;
ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
if (ret < 0)
return ret;
return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
}
static ssize_t usb_sleep_charge_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
u32 mode;
int state;
int ret;
ret = kstrtoint(buf, 0, &state);
if (ret)
return ret;
/*
* Check for supported values, where:
* 0 - Disabled
* 1 - Alternate (Non USB conformant devices that require more power)
* 2 - Auto (USB conformant devices)
* 3 - Typical
*/
if (state != 0 && state != 1 && state != 2 && state != 3)
return -EINVAL;
/* Set the USB charging mode to internal value */
mode = toshiba->usbsc_mode_base;
if (state == 0)
mode |= SCI_USB_CHARGE_DISABLED;
else if (state == 1)
mode |= SCI_USB_CHARGE_ALTERNATE;
else if (state == 2)
mode |= SCI_USB_CHARGE_AUTO;
else if (state == 3)
mode |= SCI_USB_CHARGE_TYPICAL;
ret = toshiba_usb_sleep_charge_set(toshiba, mode);
if (ret)
return ret;
return count;
}
static DEVICE_ATTR_RW(usb_sleep_charge);
static ssize_t sleep_functions_on_battery_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
u32 state;
int bat_lvl;
int status;
int ret;
int tmp;
ret = toshiba_sleep_functions_status_get(toshiba, &state);
if (ret < 0)
return ret;
/* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
tmp = state & SCI_USB_CHARGE_BAT_MASK;
status = (tmp == 0x4) ? 1 : 0;
/* Determine the battery level set */
bat_lvl = state >> HCI_MISC_SHIFT;
return sprintf(buf, "%d %d\n", status, bat_lvl);
}
static ssize_t sleep_functions_on_battery_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
u32 status;
int value;
int ret;
int tmp;
ret = kstrtoint(buf, 0, &value);
if (ret)
return ret;
/*
* Set the status of the function:
* 0 - Disabled
* 1-100 - Enabled
*/
if (value < 0 || value > 100)
return -EINVAL;
if (value == 0) {
tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
} else {
tmp = value << HCI_MISC_SHIFT;
status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
}
ret = toshiba_sleep_functions_status_set(toshiba, status);
if (ret < 0)
return ret;
toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
return count;
}
static DEVICE_ATTR_RW(sleep_functions_on_battery);
static ssize_t usb_rapid_charge_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
u32 state;
int ret;
ret = toshiba_usb_rapid_charge_get(toshiba, &state);
if (ret < 0)
return ret;
return sprintf(buf, "%d\n", state);
}
static ssize_t usb_rapid_charge_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
int state;
int ret;
ret = kstrtoint(buf, 0, &state);
if (ret)
return ret;
if (state != 0 && state != 1)
return -EINVAL;
ret = toshiba_usb_rapid_charge_set(toshiba, state);
if (ret)
return ret;
return count;
}
static DEVICE_ATTR_RW(usb_rapid_charge);
static ssize_t usb_sleep_music_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
u32 state;
int ret;
ret = toshiba_usb_sleep_music_get(toshiba, &state);
if (ret < 0)
return ret;
return sprintf(buf, "%d\n", state);
}
static ssize_t usb_sleep_music_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
int state;
int ret;
ret = kstrtoint(buf, 0, &state);
if (ret)
return ret;
if (state != 0 && state != 1)
return -EINVAL;
ret = toshiba_usb_sleep_music_set(toshiba, state);
if (ret)
return ret;
return count;
}
static DEVICE_ATTR_RW(usb_sleep_music);
static ssize_t kbd_function_keys_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
int mode;
int ret;
ret = toshiba_function_keys_get(toshiba, &mode);
if (ret < 0)
return ret;
return sprintf(buf, "%d\n", mode);
}
static ssize_t kbd_function_keys_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
int mode;
int ret;
ret = kstrtoint(buf, 0, &mode);
if (ret)
return ret;
/*
* Check for the function keys mode where:
* 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
* 1 - Special functions (Opposite of the above setting)
*/
if (mode != 0 && mode != 1)
return -EINVAL;
ret = toshiba_function_keys_set(toshiba, mode);
if (ret)
return ret;
pr_info("Reboot for changes to KBD Function Keys to take effect");
return count;
}
static DEVICE_ATTR_RW(kbd_function_keys);
static ssize_t panel_power_on_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
u32 state;
int ret;
ret = toshiba_panel_power_on_get(toshiba, &state);
if (ret < 0)
return ret;
return sprintf(buf, "%d\n", state);
}
static ssize_t panel_power_on_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
int state;
int ret;
ret = kstrtoint(buf, 0, &state);
if (ret)
return ret;
if (state != 0 && state != 1)
return -EINVAL;
ret = toshiba_panel_power_on_set(toshiba, state);
if (ret)
return ret;
pr_info("Reboot for changes to Panel Power ON to take effect");
return count;
}
static DEVICE_ATTR_RW(panel_power_on);
static ssize_t usb_three_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
u32 state;
int ret;
ret = toshiba_usb_three_get(toshiba, &state);
if (ret < 0)
return ret;
return sprintf(buf, "%d\n", state);
}
static ssize_t usb_three_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
int state;
int ret;
ret = kstrtoint(buf, 0, &state);
if (ret)
return ret;
/*
* Check for USB 3 mode where:
* 0 - Disabled (Acts like a USB 2 port, saving power)
* 1 - Enabled
*/
if (state != 0 && state != 1)
return -EINVAL;
ret = toshiba_usb_three_set(toshiba, state);
if (ret)
return ret;
pr_info("Reboot for changes to USB 3 to take effect");
return count;
}
static DEVICE_ATTR_RW(usb_three);
static struct attribute *toshiba_attributes[] = {
&dev_attr_version.attr,
&dev_attr_fan.attr,
&dev_attr_kbd_backlight_mode.attr,
&dev_attr_kbd_type.attr,
&dev_attr_available_kbd_modes.attr,
&dev_attr_kbd_backlight_timeout.attr,
&dev_attr_touchpad.attr,
&dev_attr_position.attr,
&dev_attr_usb_sleep_charge.attr,
&dev_attr_sleep_functions_on_battery.attr,
&dev_attr_usb_rapid_charge.attr,
&dev_attr_usb_sleep_music.attr,
&dev_attr_kbd_function_keys.attr,
&dev_attr_panel_power_on.attr,
&dev_attr_usb_three.attr,
NULL,
};
static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
struct attribute *attr, int idx)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
bool exists = true;
if (attr == &dev_attr_fan.attr)
exists = (drv->fan_supported) ? true : false;
else if (attr == &dev_attr_kbd_backlight_mode.attr)
exists = (drv->kbd_illum_supported) ? true : false;
else if (attr == &dev_attr_kbd_backlight_timeout.attr)
exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
else if (attr == &dev_attr_touchpad.attr)
exists = (drv->touchpad_supported) ? true : false;
else if (attr == &dev_attr_position.attr)
exists = (drv->accelerometer_supported) ? true : false;
else if (attr == &dev_attr_usb_sleep_charge.attr)
exists = (drv->usb_sleep_charge_supported) ? true : false;
else if (attr == &dev_attr_sleep_functions_on_battery.attr)
exists = (drv->usb_sleep_charge_supported) ? true : false;
else if (attr == &dev_attr_usb_rapid_charge.attr)
exists = (drv->usb_rapid_charge_supported) ? true : false;
else if (attr == &dev_attr_usb_sleep_music.attr)
exists = (drv->usb_sleep_music_supported) ? true : false;
else if (attr == &dev_attr_kbd_function_keys.attr)
exists = (drv->kbd_function_keys_supported) ? true : false;
else if (attr == &dev_attr_panel_power_on.attr)
exists = (drv->panel_power_on_supported) ? true : false;
else if (attr == &dev_attr_usb_three.attr)
exists = (drv->usb_three_supported) ? true : false;
return exists ? attr->mode : 0;
}
static struct attribute_group toshiba_attr_group = {
.is_visible = toshiba_sysfs_is_visible,
.attrs = toshiba_attributes,
};
/*
* Hotkeys
*/
static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
{
acpi_status status;
u32 result;
status = acpi_evaluate_object(dev->acpi_dev->handle,
"ENAB", NULL, NULL);
if (ACPI_FAILURE(status))
return -ENODEV;
result = hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
if (result == TOS_FAILURE)
return -EIO;
else if (result == TOS_NOT_SUPPORTED)
return -ENODEV;
return 0;
}
static void toshiba_acpi_enable_special_functions(struct toshiba_acpi_dev *dev)
{
u32 result;
/*
* Re-activate the hotkeys, but this time, we are using the
* "Special Functions" mode.
*/
result = hci_write1(dev, HCI_HOTKEY_EVENT,
HCI_HOTKEY_SPECIAL_FUNCTIONS);
if (result != TOS_SUCCESS)
pr_err("Could not enable the Special Function mode\n");
}
static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
struct serio *port)
{
if (str & I8042_STR_AUXDATA)
return false;
if (unlikely(data == 0xe0))
return false;
if ((data & 0x7f) == TOS1900_FN_SCAN) {
schedule_work(&toshiba_acpi->hotkey_work);
return true;
}
return false;
}
static void toshiba_acpi_hotkey_work(struct work_struct *work)
{
acpi_handle ec_handle = ec_get_handle();
acpi_status status;
if (!ec_handle)
return;
status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
if (ACPI_FAILURE(status))
pr_err("ACPI NTFY method execution failed\n");
}
/*
* Returns hotkey scancode, or < 0 on failure.
*/
static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
{
unsigned long long value;
acpi_status status;
status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
NULL, &value);
if (ACPI_FAILURE(status)) {
pr_err("ACPI INFO method execution failed\n");
return -EIO;
}
return value;
}
static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
int scancode)
{
if (scancode == 0x100)
return;
/* Act on key press; ignore key release */
if (scancode & 0x80)
return;
if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
pr_info("Unknown key %x\n", scancode);
}
static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
{
u32 hci_result, value;
int retries = 3;
int scancode;
if (dev->info_supported) {
scancode = toshiba_acpi_query_hotkey(dev);
if (scancode < 0)
pr_err("Failed to query hotkey event\n");
else if (scancode != 0)
toshiba_acpi_report_hotkey(dev, scancode);
} else if (dev->system_event_supported) {
do {
hci_result = hci_read1(dev, HCI_SYSTEM_EVENT, &value);
switch (hci_result) {
case TOS_SUCCESS:
toshiba_acpi_report_hotkey(dev, (int)value);
break;
case TOS_NOT_SUPPORTED:
/*
* This is a workaround for an unresolved
* issue on some machines where system events
* sporadically become disabled.
*/
hci_result =
hci_write1(dev, HCI_SYSTEM_EVENT, 1);
pr_notice("Re-enabled hotkeys\n");
/* Fall through */
default:
retries--;
break;
}
} while (retries && hci_result != TOS_FIFO_EMPTY);
}
}
static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
{
const struct key_entry *keymap = toshiba_acpi_keymap;
acpi_handle ec_handle;
u32 events_type;
u32 hci_result;
int error;
error = toshiba_acpi_enable_hotkeys(dev);
if (error)
return error;
error = toshiba_hotkey_event_type_get(dev, &events_type);
if (error) {
pr_err("Unable to query Hotkey Event Type\n");
return error;
}
dev->hotkey_event_type = events_type;
dev->hotkey_dev = input_allocate_device();
if (!dev->hotkey_dev)
return -ENOMEM;
dev->hotkey_dev->name = "Toshiba input device";
dev->hotkey_dev->phys = "toshiba_acpi/input0";
dev->hotkey_dev->id.bustype = BUS_HOST;
if (events_type == HCI_SYSTEM_TYPE1 ||
!dev->kbd_function_keys_supported)
keymap = toshiba_acpi_keymap;
else if (events_type == HCI_SYSTEM_TYPE2 ||
dev->kbd_function_keys_supported)
keymap = toshiba_acpi_alt_keymap;
else
pr_info("Unknown event type received %x\n", events_type);
error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
if (error)
goto err_free_dev;
/*
* For some machines the SCI responsible for providing hotkey
* notification doesn't fire. We can trigger the notification
* whenever the Fn key is pressed using the NTFY method, if
* supported, so if it's present set up an i8042 key filter
* for this purpose.
*/
ec_handle = ec_get_handle();
if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
error = i8042_install_filter(toshiba_acpi_i8042_filter);
if (error) {
pr_err("Error installing key filter\n");
goto err_free_keymap;
}
dev->ntfy_supported = 1;
}
/*
* Determine hotkey query interface. Prefer using the INFO
* method when it is available.
*/
if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
dev->info_supported = 1;
else {
hci_result = hci_write1(dev, HCI_SYSTEM_EVENT, 1);
if (hci_result == TOS_SUCCESS)
dev->system_event_supported = 1;
}
if (!dev->info_supported && !dev->system_event_supported) {
pr_warn("No hotkey query interface found\n");
goto err_remove_filter;
}
error = input_register_device(dev->hotkey_dev);
if (error) {
pr_info("Unable to register input device\n");
goto err_remove_filter;
}
return 0;
err_remove_filter:
if (dev->ntfy_supported)
i8042_remove_filter(toshiba_acpi_i8042_filter);
err_free_keymap:
sparse_keymap_free(dev->hotkey_dev);
err_free_dev:
input_free_device(dev->hotkey_dev);
dev->hotkey_dev = NULL;
return error;
}
static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
{
struct backlight_properties props;
int brightness;
int ret;
bool enabled;
/*
* Some machines don't support the backlight methods at all, and
* others support it read-only. Either of these is pretty useless,
* so only register the backlight device if the backlight method
* supports both reads and writes.
*/
brightness = __get_lcd_brightness(dev);
if (brightness < 0)
return 0;
ret = set_lcd_brightness(dev, brightness);
if (ret) {
pr_debug("Backlight method is read-only, disabling backlight support\n");
return 0;
}
/* Determine whether or not BIOS supports transflective backlight */
ret = get_tr_backlight_status(dev, &enabled);
dev->tr_backlight_supported = !ret;
/*
* Tell acpi-video-detect code to prefer vendor backlight on all
* systems with transflective backlight and on dmi matched systems.
*/
if (dev->tr_backlight_supported ||
dmi_check_system(toshiba_vendor_backlight_dmi))
acpi_video_dmi_promote_vendor();
if (acpi_video_backlight_support())
return 0;
/* acpi-video may have loaded before we called dmi_promote_vendor() */
acpi_video_unregister_backlight();
memset(&props, 0, sizeof(props));
props.type = BACKLIGHT_PLATFORM;
props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
/* Adding an extra level and having 0 change to transflective mode */
if (dev->tr_backlight_supported)
props.max_brightness++;
dev->backlight_dev = backlight_device_register("toshiba",
&dev->acpi_dev->dev,
dev,
&toshiba_backlight_data,
&props);
if (IS_ERR(dev->backlight_dev)) {
ret = PTR_ERR(dev->backlight_dev);
pr_err("Could not register toshiba backlight device\n");
dev->backlight_dev = NULL;
return ret;
}
dev->backlight_dev->props.brightness = brightness;
return 0;
}
static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
{
struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
remove_toshiba_proc_entries(dev);
if (dev->sysfs_created)
sysfs_remove_group(&dev->acpi_dev->dev.kobj,
&toshiba_attr_group);
if (dev->ntfy_supported) {
i8042_remove_filter(toshiba_acpi_i8042_filter);
cancel_work_sync(&dev->hotkey_work);
}
if (dev->hotkey_dev) {
input_unregister_device(dev->hotkey_dev);
sparse_keymap_free(dev->hotkey_dev);
}
if (dev->bt_rfk) {
rfkill_unregister(dev->bt_rfk);
rfkill_destroy(dev->bt_rfk);
}
backlight_device_unregister(dev->backlight_dev);
if (dev->illumination_supported)
led_classdev_unregister(&dev->led_dev);
if (dev->kbd_led_registered)
led_classdev_unregister(&dev->kbd_led);
if (dev->eco_supported)
led_classdev_unregister(&dev->eco_led);
if (toshiba_acpi)
toshiba_acpi = NULL;
kfree(dev);
return 0;
}
static const char *find_hci_method(acpi_handle handle)
{
if (acpi_has_method(handle, "GHCI"))
return "GHCI";
if (acpi_has_method(handle, "SPFC"))
return "SPFC";
return NULL;
}
static int toshiba_acpi_add(struct acpi_device *acpi_dev)
{
struct toshiba_acpi_dev *dev;
const char *hci_method;
u32 special_functions;
u32 dummy;
bool bt_present;
int ret = 0;
if (toshiba_acpi)
return -EBUSY;
pr_info("Toshiba Laptop ACPI Extras version %s\n",
TOSHIBA_ACPI_VERSION);
hci_method = find_hci_method(acpi_dev->handle);
if (!hci_method) {
pr_err("HCI interface not found\n");
return -ENODEV;
}
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev)
return -ENOMEM;
dev->acpi_dev = acpi_dev;
dev->method_hci = hci_method;
acpi_dev->driver_data = dev;
dev_set_drvdata(&acpi_dev->dev, dev);
/* Query the BIOS for supported features */
/*
* The "Special Functions" are always supported by the laptops
* with the new keyboard layout, query for its presence to help
* determine the keymap layout to use.
*/
ret = toshiba_function_keys_get(dev, &special_functions);
dev->kbd_function_keys_supported = !ret;
if (toshiba_acpi_setup_keyboard(dev))
pr_info("Unable to activate hotkeys\n");
mutex_init(&dev->mutex);
ret = toshiba_acpi_setup_backlight(dev);
if (ret)
goto error;
/* Register rfkill switch for Bluetooth */
if (hci_get_bt_present(dev, &bt_present) == TOS_SUCCESS && bt_present) {
dev->bt_rfk = rfkill_alloc("Toshiba Bluetooth",
&acpi_dev->dev,
RFKILL_TYPE_BLUETOOTH,
&toshiba_rfk_ops,
dev);
if (!dev->bt_rfk) {
pr_err("unable to allocate rfkill device\n");
ret = -ENOMEM;
goto error;
}
ret = rfkill_register(dev->bt_rfk);
if (ret) {
pr_err("unable to register rfkill device\n");
rfkill_destroy(dev->bt_rfk);
goto error;
}
}
if (toshiba_illumination_available(dev)) {
dev->led_dev.name = "toshiba::illumination";
dev->led_dev.max_brightness = 1;
dev->led_dev.brightness_set = toshiba_illumination_set;
dev->led_dev.brightness_get = toshiba_illumination_get;
if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
dev->illumination_supported = 1;
}
if (toshiba_eco_mode_available(dev)) {
dev->eco_led.name = "toshiba::eco_mode";
dev->eco_led.max_brightness = 1;
dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
dev->eco_supported = 1;
}
dev->kbd_illum_supported = toshiba_kbd_illum_available(dev);
/*
* Only register the LED if KBD illumination is supported
* and the keyboard backlight operation mode is set to FN-Z
*/
if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
dev->kbd_led.name = "toshiba::kbd_backlight";
dev->kbd_led.max_brightness = 1;
dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
dev->kbd_led_registered = 1;
}
ret = toshiba_touchpad_get(dev, &dummy);
dev->touchpad_supported = !ret;
ret = toshiba_accelerometer_supported(dev);
dev->accelerometer_supported = !ret;
toshiba_usb_sleep_charge_available(dev);
ret = toshiba_usb_rapid_charge_get(dev, &dummy);
dev->usb_rapid_charge_supported = !ret;
ret = toshiba_usb_sleep_music_get(dev, &dummy);
dev->usb_sleep_music_supported = !ret;
ret = toshiba_panel_power_on_get(dev, &dummy);
dev->panel_power_on_supported = !ret;
ret = toshiba_usb_three_get(dev, &dummy);
dev->usb_three_supported = !ret;
ret = get_video_status(dev, &dummy);
dev->video_supported = !ret;
ret = get_fan_status(dev, &dummy);
dev->fan_supported = !ret;
/*
* Enable the "Special Functions" mode only if they are
* supported and if they are activated.
*/
if (dev->kbd_function_keys_supported && special_functions)
toshiba_acpi_enable_special_functions(dev);
ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
&toshiba_attr_group);
if (ret) {
dev->sysfs_created = 0;
goto error;
}
dev->sysfs_created = !ret;
create_toshiba_proc_entries(dev);
toshiba_acpi = dev;
return 0;
error:
toshiba_acpi_remove(acpi_dev);
return ret;
}
static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
{
struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
int ret;
switch (event) {
case 0x80: /* Hotkeys and some system events */
toshiba_acpi_process_hotkeys(dev);
break;
case 0x81: /* Dock events */
case 0x82:
case 0x83:
pr_info("Dock event received %x\n", event);
break;
case 0x88: /* Thermal events */
pr_info("Thermal event received\n");
break;
case 0x8f: /* LID closed */
case 0x90: /* LID is closed and Dock has been ejected */
break;
case 0x8c: /* SATA power events */
case 0x8b:
pr_info("SATA power event received %x\n", event);
break;
case 0x92: /* Keyboard backlight mode changed */
/* Update sysfs entries */
ret = sysfs_update_group(&acpi_dev->dev.kobj,
&toshiba_attr_group);
if (ret)
pr_err("Unable to update sysfs entries\n");
break;
case 0x85: /* Unknown */
case 0x8d: /* Unknown */
case 0x8e: /* Unknown */
case 0x94: /* Unknown */
case 0x95: /* Unknown */
default:
pr_info("Unknown event received %x\n", event);
break;
}
acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
dev_name(&acpi_dev->dev),
event, 0);
}
#ifdef CONFIG_PM_SLEEP
static int toshiba_acpi_suspend(struct device *device)
{
struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
u32 result;
if (dev->hotkey_dev)
result = hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
return 0;
}
static int toshiba_acpi_resume(struct device *device)
{
struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
int error;
if (dev->hotkey_dev) {
error = toshiba_acpi_enable_hotkeys(dev);
if (error)
pr_info("Unable to re-enable hotkeys\n");
}
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
toshiba_acpi_suspend, toshiba_acpi_resume);
static struct acpi_driver toshiba_acpi_driver = {
.name = "Toshiba ACPI driver",
.owner = THIS_MODULE,
.ids = toshiba_device_ids,
.flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
.ops = {
.add = toshiba_acpi_add,
.remove = toshiba_acpi_remove,
.notify = toshiba_acpi_notify,
},
.drv.pm = &toshiba_acpi_pm,
};
static int __init toshiba_acpi_init(void)
{
int ret;
/*
* Machines with this WMI guid aren't supported due to bugs in
* their AML. This check relies on wmi initializing before
* toshiba_acpi to guarantee guids have been identified.
*/
if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
return -ENODEV;
toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
if (!toshiba_proc_dir) {
pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
return -ENODEV;
}
ret = acpi_bus_register_driver(&toshiba_acpi_driver);
if (ret) {
pr_err("Failed to register ACPI driver: %d\n", ret);
remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
}
return ret;
}
static void __exit toshiba_acpi_exit(void)
{
acpi_bus_unregister_driver(&toshiba_acpi_driver);
if (toshiba_proc_dir)
remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
}
module_init(toshiba_acpi_init);
module_exit(toshiba_acpi_exit);
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