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linux_dsm_epyc7002/drivers/platform/x86/toshiba_acpi.c
Azael Avalos 1e574dbfad toshiba_acpi: Change some variables to avoid warnings from ninja-check 
This patch changes some variables to avoid warnings from ninja-check.

We are basically moving some variables inside the conditionals where
such variables are being used, and we are checking the returned values
of some others.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-07-24 15:47:38 -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 "0.22"
#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/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 <linux/miscdevice.h>
#include <linux/toshiba.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_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 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 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;
struct miscdevice miscdev;
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;
};
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, 0x102, { KEY_ZOOMOUT } },
{ KE_KEY, 0x103, { KEY_ZOOMIN } },
{ KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
{ KE_KEY, 0x139, { KEY_ZOOMRESET } },
{ KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
{ KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
{ KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
{ KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
{ KE_KEY, 0x157, { KEY_MUTE } },
{ KE_KEY, 0x158, { KEY_WLAN } },
{ 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
*
* In addition to the ACPI status, the HCI system returns a result which
* may be useful (such as "not supported").
*/
static u32 hci_write(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_read(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];
}
/*
* 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)) {
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)) {
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)) {
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_read(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_write(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)) {
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)) {
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)) {
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)) {
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)) {
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)) {
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)) {
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 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
u32 out[TCI_WORDS];
acpi_status status;
status = tci_raw(dev, in, out);
if (ACPI_FAILURE(status)) {
pr_err("ACPI call to get System type failed\n");
return -EIO;
} else if (out[0] == TOS_NOT_SUPPORTED) {
pr_info("System type not supported\n");
return -ENODEV;
}
*type = out[3];
return 0;
}
/* Transflective Backlight */
static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
{
u32 hci_result = hci_read(dev, HCI_TR_BACKLIGHT, status);
return hci_result == TOS_SUCCESS ? 0 : -EIO;
}
static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
{
u32 hci_result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
return hci_result == TOS_SUCCESS ? 0 : -EIO;
}
static struct proc_dir_entry *toshiba_proc_dir;
/* LCD Brightness */
static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
{
u32 hci_result;
u32 value;
int brightness = 0;
if (dev->tr_backlight_supported) {
int ret = get_tr_backlight_status(dev, &value);
if (ret)
return ret;
if (value)
return 0;
brightness++;
}
hci_result = hci_read(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) {
int ret = set_tr_backlight_status(dev, !value);
if (ret)
return ret;
if (value)
value--;
}
value = value << HCI_LCD_BRIGHTNESS_SHIFT;
hci_result = hci_write(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_read(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_read(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_write(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;
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_write(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 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) */
int 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,
};
/*
* Misc device
*/
static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
{
u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
regs->edx, regs->esi, regs->edi };
u32 out[TCI_WORDS];
acpi_status status;
status = tci_raw(toshiba_acpi, in, out);
if (ACPI_FAILURE(status)) {
pr_err("ACPI call to query SMM registers failed\n");
return -EIO;
}
/* Fillout the SMM struct with the TCI call results */
regs->eax = out[0];
regs->ebx = out[1];
regs->ecx = out[2];
regs->edx = out[3];
regs->esi = out[4];
regs->edi = out[5];
return 0;
}
static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
unsigned long arg)
{
SMMRegisters __user *argp = (SMMRegisters __user *)arg;
SMMRegisters regs;
int ret;
if (!argp)
return -EINVAL;
switch (cmd) {
case TOSH_SMM:
if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
return -EFAULT;
ret = toshiba_acpi_smm_bridge(&regs);
if (ret)
return ret;
if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
return -EFAULT;
break;
case TOSHIBA_ACPI_SCI:
if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
return -EFAULT;
/* Ensure we are being called with a SCI_{GET, SET} register */
if (regs.eax != SCI_GET && regs.eax != SCI_SET)
return -EINVAL;
if (!sci_open(toshiba_acpi))
return -EIO;
ret = toshiba_acpi_smm_bridge(&regs);
sci_close(toshiba_acpi);
if (ret)
return ret;
if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
return -EFAULT;
break;
default:
return -EINVAL;
}
return 0;
}
static const struct file_operations toshiba_acpi_fops = {
.owner = THIS_MODULE,
.unlocked_ioctl = toshiba_acpi_ioctl,
.llseek = noop_llseek,
};
/*
* 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_write(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_write(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)
{
if (dev->info_supported) {
int 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);
dev->key_event_valid = 1;
dev->last_key_event = scancode;
}
} else if (dev->system_event_supported) {
u32 result;
u32 value;
int retries = 3;
do {
result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
switch (result) {
case TOS_SUCCESS:
toshiba_acpi_report_hotkey(dev, (int)value);
dev->key_event_valid = 1;
dev->last_key_event = value;
break;
case TOS_NOT_SUPPORTED:
/*
* This is a workaround for an unresolved
* issue on some machines where system events
* sporadically become disabled.
*/
result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
if (result == TOS_SUCCESS)
pr_notice("Re-enabled hotkeys\n");
/* Fall through */
default:
retries--;
break;
}
} while (retries && 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;
if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
pr_info("WMI event detected, hotkeys will not be monitored\n");
return 0;
}
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_write(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;
/*
* 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;
}
/*
* 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_set_dmi_backlight_type(acpi_backlight_vendor);
if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
return 0;
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);
misc_deregister(&dev->miscdev);
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);
}
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;
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;
dev->miscdev.minor = MISC_DYNAMIC_MINOR;
dev->miscdev.name = "toshiba_acpi";
dev->miscdev.fops = &toshiba_acpi_fops;
ret = misc_register(&dev->miscdev);
if (ret) {
pr_err("Failed to register miscdevice\n");
kfree(dev);
return ret;
}
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");
/* Determine whether or not BIOS supports transflective backlight */
ret = get_tr_backlight_status(dev, &dummy);
dev->tr_backlight_supported = !ret;
ret = toshiba_acpi_setup_backlight(dev);
if (ret)
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 */
/*
* Machines with this WMI GUID aren't supported due to bugs in
* their AML.
*
* Return silently to avoid triggering a netlink event.
*/
if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
return;
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));
if (dev->hotkey_dev) {
u32 result;
result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
if (result != TOS_SUCCESS)
pr_info("Unable to disable hotkeys\n");
}
return 0;
}
static int toshiba_acpi_resume(struct device *device)
{
struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
if (dev->hotkey_dev) {
int 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;
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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