diff options
Diffstat (limited to 'drivers/platform/x86/toshiba_acpi.c')
| -rw-r--r-- | drivers/platform/x86/toshiba_acpi.c | 3624 |
1 files changed, 3624 insertions, 0 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c new file mode 100644 index 000000000..160abd3b3 --- /dev/null +++ b/drivers/platform/x86/toshiba_acpi.c @@ -0,0 +1,3624 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * 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) 2014-2016 Azael Avalos + * + * 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 "0.24" +#define PROC_INTERFACE_VERSION 1 + +#include <linux/compiler.h> +#include <linux/dmi.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/moduleparam.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/uaccess.h> +#include <linux/miscdevice.h> +#include <linux/rfkill.h> +#include <linux/hwmon.h> +#include <linux/iio/iio.h> +#include <linux/toshiba.h> +#include <acpi/battery.h> +#include <acpi/video.h> + +MODULE_AUTHOR("John Belmonte"); +MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver"); +MODULE_LICENSE("GPL"); + +static int turn_on_panel_on_resume = -1; +module_param(turn_on_panel_on_resume, int, 0644); +MODULE_PARM_DESC(turn_on_panel_on_resume, + "Call HCI_PANEL_POWER_ON on resume (-1 = auto, 0 = no, 1 = yes"); + +#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_SUCCESS2 0x0001 +#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_PANEL_POWER_ON 0x0002 +#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_FAN_RPM 0x0045 +#define HCI_WIRELESS 0x0056 +#define HCI_ACCELEROMETER 0x006d +#define HCI_COOLING_METHOD 0x007f +#define HCI_KBD_ILLUMINATION 0x0095 +#define HCI_ECO_MODE 0x0097 +#define HCI_ACCELEROMETER2 0x00a6 +#define HCI_BATTERY_CHARGE_MODE 0x00ba +#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_ACCEL_DIRECTION_MASK 0x8000 +#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 HCI_WIRELESS_STATUS 0x1 +#define HCI_WIRELESS_WWAN 0x3 +#define HCI_WIRELESS_WWAN_STATUS 0x2000 +#define HCI_WIRELESS_WWAN_POWER 0x4000 +#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; + struct rfkill *wwan_rfk; + struct iio_dev *indio_dev; +#if IS_ENABLED(CONFIG_HWMON) + struct device *hwmon_device; +#endif + + 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; + int max_cooling_method; + + unsigned int illumination_supported:1; + unsigned int video_supported:1; + unsigned int fan_supported:1; + unsigned int fan_rpm_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 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 wwan_supported:1; + unsigned int cooling_method_supported:1; + unsigned int battery_charge_mode_supported:1; + unsigned int sysfs_created:1; + unsigned int special_functions; + + bool kbd_event_generated; + bool killswitch; +}; + +static struct toshiba_acpi_dev *toshiba_acpi; + +static bool disable_hotkeys; +module_param(disable_hotkeys, bool, 0444); +MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation"); + +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 }, +}; + +/* + * 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]) +{ + union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1]; + struct acpi_object_list params; + struct acpi_buffer results; + 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, ¶ms, + &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 = 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 = 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 void 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; + + dev->illumination_supported = 0; + + if (!sci_open(dev)) + return; + + status = tci_raw(dev, in, out); + sci_close(dev); + if (ACPI_FAILURE(status)) { + pr_err("ACPI call to query Illumination support failed\n"); + return; + } + + if (out[0] != TOS_SUCCESS) + return; + + dev->illumination_supported = 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 result; + u32 state; + + /* 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"); +} + +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 result; + u32 state; + + /* 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) { + pr_err("ACPI call for illumination failed\n"); + return LED_OFF; + } else if (result != TOS_SUCCESS) { + return LED_OFF; + } + + return state ? LED_FULL : LED_OFF; +} + +/* KBD Illumination */ +static void 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; + + dev->kbd_illum_supported = 0; + dev->kbd_event_generated = false; + + if (!sci_open(dev)) + return; + + status = tci_raw(dev, in, out); + sci_close(dev); + if (ACPI_FAILURE(status)) { + pr_err("ACPI call to query kbd illumination support failed\n"); + return; + } + + if (out[0] != TOS_SUCCESS) + return; + + /* + * 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; + /* Flag as supported */ + dev->kbd_illum_supported = 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) + pr_err("ACPI call to set KBD backlight status failed\n"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return result == TOS_SUCCESS ? 0 : -EIO; +} + +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) + pr_err("ACPI call to get KBD backlight status failed\n"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return result == TOS_SUCCESS ? 0 : -EIO; +} + +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 result; + u32 state; + + /* Check the keyboard backlight state */ + result = hci_read(dev, HCI_KBD_ILLUMINATION, &state); + if (result == TOS_FAILURE) { + pr_err("ACPI call to get the keyboard backlight failed\n"); + return LED_OFF; + } else if (result != TOS_SUCCESS) { + 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 result; + u32 state; + + /* Set the keyboard backlight state */ + state = brightness ? 1 : 0; + result = hci_write(dev, HCI_KBD_ILLUMINATION, state); + if (result == TOS_FAILURE) + pr_err("ACPI call to set KBD Illumination mode failed\n"); +} + +/* 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"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return result == TOS_SUCCESS ? 0 : -EIO; +} + +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"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return result == TOS_SUCCESS ? 0 : -EIO; +} + +/* Eco Mode support */ +static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev) +{ + u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 }; + u32 out[TCI_WORDS]; + acpi_status status; + + dev->eco_supported = 0; + + status = tci_raw(dev, in, out); + if (ACPI_FAILURE(status)) { + pr_err("ACPI call to get ECO led failed\n"); + return; + } + + if (out[0] == TOS_INPUT_DATA_ERROR || out[0] == TOS_NOT_SUPPORTED) { + /* + * If we receive 0x8300 (Input Data Error), it means that the + * LED device is present, but that we just screwed the input + * parameters. + * + * On some laptops 0x8000 (Not supported) is also returned in + * this case, so we need to allow for that as well. + * + * 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)) { + pr_err("ACPI call to get ECO led failed\n"); + return; + } + + if (out[0] != TOS_SUCCESS) + return; + + dev->eco_supported = 1; + } +} + +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)) { + pr_err("ACPI call to get ECO led failed\n"); + return LED_OFF; + } + + if (out[0] != TOS_SUCCESS) + 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)) + pr_err("ACPI call to set ECO led failed\n"); +} + +/* Accelerometer support */ +static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev) +{ + u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 }; + u32 out[TCI_WORDS]; + acpi_status status; + + dev->accelerometer_supported = 0; + + /* + * Check if the accelerometer call exists, + * this call also serves as initialization + */ + status = tci_raw(dev, in, out); + if (ACPI_FAILURE(status)) { + pr_err("ACPI call to query the accelerometer failed\n"); + return; + } + + if (out[0] != TOS_SUCCESS) + return; + + dev->accelerometer_supported = 1; +} + +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)) { + pr_err("ACPI call to query the accelerometer failed\n"); + return -EIO; + } + + if (out[0] == TOS_NOT_SUPPORTED) + return -ENODEV; + + if (out[0] != TOS_SUCCESS) + 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; + + 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; + } + + if (out[0] != TOS_SUCCESS) { + sci_close(dev); + return; + } + + dev->usbsc_mode_base = out[4]; + + 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 Sleep and Charge mode failed\n"); + return; + } + + if (out[0] != TOS_SUCCESS) + return; + + dev->usbsc_bat_level = out[2]; + /* Flag as supported */ + dev->usb_sleep_charge_supported = 1; +} + +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"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return result == TOS_SUCCESS ? 0 : -EIO; +} + +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"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return result == TOS_SUCCESS ? 0 : -EIO; +} + +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; + } + + if (out[0] == TOS_NOT_SUPPORTED) + return -ENODEV; + + if (out[0] != TOS_SUCCESS) + 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; + } + + if (out[0] == TOS_NOT_SUPPORTED) + return -ENODEV; + + return out[0] == TOS_SUCCESS ? 0 : -EIO; +} + +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; + } + + if (out[0] == TOS_NOT_SUPPORTED) + return -ENODEV; + + if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2) + return -EIO; + + *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; + } + + if (out[0] == TOS_NOT_SUPPORTED) + return -ENODEV; + + return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO; +} + +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"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return result == TOS_SUCCESS ? 0 : -EIO; +} + +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"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return result == TOS_SUCCESS ? 0 : -EIO; +} + +/* 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) + pr_err("ACPI call to get KBD function keys failed\n"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; +} + +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) + pr_err("ACPI call to set KBD function keys failed\n"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; +} + +/* 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"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return result == TOS_SUCCESS ? 0 : -EIO; +} + +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"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return result == TOS_SUCCESS ? 0 : -EIO; +} + +/* 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"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; +} + +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"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; +} + +/* 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; + } + + if (out[0] == TOS_NOT_SUPPORTED) + return -ENODEV; + + if (out[0] != TOS_SUCCESS) + return -EIO; + + *type = out[3]; + + return 0; +} + +/* Wireless status (RFKill, WLAN, BT, WWAN) */ +static int toshiba_wireless_status(struct toshiba_acpi_dev *dev) +{ + u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 }; + u32 out[TCI_WORDS]; + acpi_status status; + + in[3] = HCI_WIRELESS_STATUS; + status = tci_raw(dev, in, out); + + if (ACPI_FAILURE(status)) { + pr_err("ACPI call to get Wireless status failed\n"); + return -EIO; + } + + if (out[0] == TOS_NOT_SUPPORTED) + return -ENODEV; + + if (out[0] != TOS_SUCCESS) + return -EIO; + + dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS); + + return 0; +} + +/* WWAN */ +static void toshiba_wwan_available(struct toshiba_acpi_dev *dev) +{ + u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 }; + u32 out[TCI_WORDS]; + acpi_status status; + + dev->wwan_supported = 0; + + /* + * WWAN support can be queried by setting the in[3] value to + * HCI_WIRELESS_WWAN (0x03). + * + * If supported, out[0] contains TOS_SUCCESS and out[2] contains + * HCI_WIRELESS_WWAN_STATUS (0x2000). + * + * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300) + * or TOS_NOT_SUPPORTED (0x8000). + */ + in[3] = HCI_WIRELESS_WWAN; + status = tci_raw(dev, in, out); + if (ACPI_FAILURE(status)) { + pr_err("ACPI call to get WWAN status failed\n"); + return; + } + + if (out[0] != TOS_SUCCESS) + return; + + dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS); +} + +static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state) +{ + u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 }; + u32 out[TCI_WORDS]; + acpi_status status; + + in[3] = HCI_WIRELESS_WWAN_STATUS; + status = tci_raw(dev, in, out); + if (ACPI_FAILURE(status)) { + pr_err("ACPI call to set WWAN status failed\n"); + return -EIO; + } + + if (out[0] == TOS_NOT_SUPPORTED) + return -ENODEV; + + if (out[0] != TOS_SUCCESS) + return -EIO; + + /* + * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to + * (de)activate the device, but some others need the + * HCI_WIRELESS_WWAN_POWER call as well. + */ + in[3] = HCI_WIRELESS_WWAN_POWER; + status = tci_raw(dev, in, out); + if (ACPI_FAILURE(status)) { + pr_err("ACPI call to set WWAN power failed\n"); + return -EIO; + } + + if (out[0] == TOS_NOT_SUPPORTED) + return -ENODEV; + + return out[0] == TOS_SUCCESS ? 0 : -EIO; +} + +/* Cooling Method */ +static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev) +{ + u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 }; + u32 out[TCI_WORDS]; + acpi_status status; + + dev->cooling_method_supported = 0; + dev->max_cooling_method = 0; + + status = tci_raw(dev, in, out); + if (ACPI_FAILURE(status)) { + pr_err("ACPI call to get Cooling Method failed\n"); + return; + } + + if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2) + return; + + dev->cooling_method_supported = 1; + dev->max_cooling_method = out[3]; +} + +static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state) +{ + u32 result = hci_read(dev, HCI_COOLING_METHOD, state); + + if (result == TOS_FAILURE) + pr_err("ACPI call to get Cooling Method failed\n"); + + if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; +} + +static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state) +{ + u32 result = hci_write(dev, HCI_COOLING_METHOD, state); + + if (result == TOS_FAILURE) + pr_err("ACPI call to set Cooling Method failed\n"); + + if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; +} + +/* Battery charge control */ +static void toshiba_battery_charge_mode_available(struct toshiba_acpi_dev *dev) +{ + u32 in[TCI_WORDS] = { HCI_GET, HCI_BATTERY_CHARGE_MODE, 0, 0, 0, 0 }; + u32 out[TCI_WORDS]; + acpi_status status; + + dev->battery_charge_mode_supported = 0; + + status = tci_raw(dev, in, out); + if (ACPI_FAILURE(status)) { + pr_err("ACPI call to get Battery Charge Mode failed\n"); + return; + } + + if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2) + return; + + dev->battery_charge_mode_supported = 1; +} + +static int toshiba_battery_charge_mode_get(struct toshiba_acpi_dev *dev, u32 *state) +{ + u32 in[TCI_WORDS] = { HCI_GET, HCI_BATTERY_CHARGE_MODE, 0, 0, 0, 0x1 }; + u32 out[TCI_WORDS]; + int retries = 3; + + do { + acpi_status status = tci_raw(dev, in, out); + + if (ACPI_FAILURE(status)) + pr_err("ACPI call to get Battery Charge Mode failed\n"); + switch (out[0]) { + case TOS_SUCCESS: + case TOS_SUCCESS2: + *state = out[2]; + return 0; + case TOS_NOT_SUPPORTED: + return -ENODEV; + case TOS_DATA_NOT_AVAILABLE: + retries--; + break; + default: + return -EIO; + } + } while (retries); + + return -EIO; +} + +static int toshiba_battery_charge_mode_set(struct toshiba_acpi_dev *dev, u32 state) +{ + u32 result = hci_write(dev, HCI_BATTERY_CHARGE_MODE, state); + + if (result == TOS_FAILURE) + pr_err("ACPI call to set Battery Charge Mode failed\n"); + + if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; +} + +/* Transflective Backlight */ +static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status) +{ + u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status); + + if (result == TOS_FAILURE) + pr_err("ACPI call to get Transflective Backlight failed\n"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return result == TOS_SUCCESS ? 0 : -EIO; +} + +static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status) +{ + u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status); + + if (result == TOS_FAILURE) + pr_err("ACPI call to set Transflective Backlight failed\n"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return 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) +{ + int brightness = 0; + u32 result; + u32 value; + + if (dev->tr_backlight_supported) { + int ret = get_tr_backlight_status(dev, &value); + + if (ret) + return ret; + if (value) + return 0; + brightness++; + } + + result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value); + if (result == TOS_FAILURE) + pr_err("ACPI call to get LCD Brightness failed\n"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return result == TOS_SUCCESS ? + brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) : + -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 levels; + int value; + + if (!dev->backlight_dev) + return -ENODEV; + + levels = dev->backlight_dev->props.max_brightness + 1; + value = get_lcd_brightness(dev->backlight_dev); + if (value < 0) { + pr_err("Error reading LCD brightness\n"); + return value; + } + + seq_printf(m, "brightness: %d\n", value); + seq_printf(m, "brightness_levels: %d\n", levels); + + return 0; +} + +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 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; + result = hci_write(dev, HCI_LCD_BRIGHTNESS, value); + if (result == TOS_FAILURE) + pr_err("ACPI call to set LCD Brightness failed\n"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return 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 levels; + int value; + + len = min(count, sizeof(cmd) - 1); + if (copy_from_user(cmd, buf, len)) + return -EFAULT; + cmd[len] = '\0'; + + levels = dev->backlight_dev->props.max_brightness + 1; + if (sscanf(cmd, " brightness : %i", &value) != 1 && + value < 0 && value > levels) + return -EINVAL; + + if (set_lcd_brightness(dev, value)) + return -EIO; + + return count; +} + +static const struct proc_ops lcd_proc_ops = { + .proc_open = lcd_proc_open, + .proc_read = seq_read, + .proc_lseek = seq_lseek, + .proc_release = single_release, + .proc_write = lcd_proc_write, +}; + +/* Video-Out */ +static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status) +{ + u32 result = hci_read(dev, HCI_VIDEO_OUT, status); + + if (result == TOS_FAILURE) + pr_err("ACPI call to get Video-Out failed\n"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return result == TOS_SUCCESS ? 0 : -EIO; +} + +static int video_proc_show(struct seq_file *m, void *v) +{ + struct toshiba_acpi_dev *dev = m->private; + int is_lcd, is_crt, is_tv; + u32 value; + + if (get_video_status(dev, &value)) + return -EIO; + + is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0; + is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0; + 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 0; +} + +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 *buffer; + char *cmd; + int lcd_out = -1, crt_out = -1, tv_out = -1; + int remain = count; + int value; + int ret; + u32 video_out; + + cmd = memdup_user_nul(buf, count); + if (IS_ERR(cmd)) + return PTR_ERR(cmd); + + 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 ? -EIO : count; +} + +static const struct proc_ops video_proc_ops = { + .proc_open = video_proc_open, + .proc_read = seq_read, + .proc_lseek = seq_lseek, + .proc_release = single_release, + .proc_write = video_proc_write, +}; + +/* Fan status */ +static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status) +{ + u32 result = hci_read(dev, HCI_FAN, status); + + if (result == TOS_FAILURE) + pr_err("ACPI call to get Fan status failed\n"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return result == TOS_SUCCESS ? 0 : -EIO; +} + +static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status) +{ + u32 result = hci_write(dev, HCI_FAN, status); + + if (result == TOS_FAILURE) + pr_err("ACPI call to set Fan status failed\n"); + else if (result == TOS_NOT_SUPPORTED) + return -ENODEV; + + return result == TOS_SUCCESS ? 0 : -EIO; +} + +static int fan_proc_show(struct seq_file *m, void *v) +{ + struct toshiba_acpi_dev *dev = m->private; + u32 value; + + if (get_fan_status(dev, &value)) + return -EIO; + + seq_printf(m, "running: %d\n", (value > 0)); + seq_printf(m, "force_on: %d\n", dev->force_fan); + + return 0; +} + +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; + + 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) + return -EINVAL; + + if (set_fan_status(dev, value)) + return -EIO; + + dev->force_fan = value; + + return count; +} + +static const struct proc_ops fan_proc_ops = { + .proc_open = fan_proc_open, + .proc_read = seq_read, + .proc_lseek = seq_lseek, + .proc_release = single_release, + .proc_write = fan_proc_write, +}; + +/* Fan RPM */ +static int get_fan_rpm(struct toshiba_acpi_dev *dev, u32 *rpm) +{ + u32 in[TCI_WORDS] = { HCI_GET, HCI_FAN_RPM, 0, 1, 0, 0 }; + u32 out[TCI_WORDS]; + acpi_status status = tci_raw(dev, in, out); + + if (ACPI_FAILURE(status)) { + pr_err("ACPI call to get Fan speed failed\n"); + return -EIO; + } + + if (out[0] == TOS_NOT_SUPPORTED) + return -ENODEV; + + if (out[0] == TOS_SUCCESS) { + *rpm = out[2]; + return 0; + } + + return -EIO; +} + +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 proc_ops keys_proc_ops = { + .proc_open = keys_proc_open, + .proc_read = seq_read, + .proc_lseek = seq_lseek, + .proc_release = single_release, + .proc_write = keys_proc_write, +}; + +static int __maybe_unused 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; +} + +/* + * 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_ops, dev); + if (dev->video_supported) + proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir, + &video_proc_ops, dev); + if (dev->fan_supported) + proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir, + &fan_proc_ops, dev); + if (dev->hotkey_dev) + proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir, + &keys_proc_ops, dev); + proc_create_single_data("version", S_IRUGO, toshiba_proc_dir, + version_proc_show, 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, +}; + +/* Keyboard backlight work */ +static void toshiba_acpi_kbd_bl_work(struct work_struct *work); + +static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work); + +/* + * 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); + int state; + int ret; + + ret = kstrtoint(buf, 0, &state); + if (ret) + return ret; + + if (state != 0 && state != 1) + return -EINVAL; + + ret = set_fan_status(toshiba, state); + if (ret) + return ret; + + 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; + toshiba_acpi->kbd_mode = mode; + + /* + * Some laptop models with the second generation backlit + * keyboard (type 2) do not generate the keyboard backlight + * changed event (0x92), and thus, the driver will never update + * the sysfs entries. + * + * The event is generated right when changing the keyboard + * backlight mode and the *notify function will set the + * kbd_event_generated to true. + * + * In case the event is not generated, schedule the keyboard + * backlight work to update the sysfs entries and emulate the + * event via genetlink. + */ + if (toshiba->kbd_type == 2 && + !toshiba->kbd_event_generated) + schedule_work(&kbd_bl_work); + } + + 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, "0x%x 0x%x\n", + SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO); + + return sprintf(buf, "0x%x 0x%x 0x%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 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); + int state; + u32 mode; + 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); + int bat_lvl, status; + u32 state; + 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 ssize_t cooling_method_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); + int state; + int ret; + + ret = toshiba_cooling_method_get(toshiba, &state); + if (ret < 0) + return ret; + + return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method); +} + +static ssize_t cooling_method_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 supported values + * Depending on the laptop model, some only support these two: + * 0 - Maximum Performance + * 1 - Battery Optimized + * + * While some others support all three methods: + * 0 - Maximum Performance + * 1 - Performance + * 2 - Battery Optimized + */ + if (state < 0 || state > toshiba->max_cooling_method) + return -EINVAL; + + ret = toshiba_cooling_method_set(toshiba, state); + if (ret) + return ret; + + return count; +} +static DEVICE_ATTR_RW(cooling_method); + +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_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, + &dev_attr_cooling_method.attr, + NULL, +}; + +static umode_t toshiba_sysfs_is_visible(struct kobject *kobj, + struct attribute *attr, int idx) +{ + struct device *dev = kobj_to_dev(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_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; + else if (attr == &dev_attr_cooling_method.attr) + exists = (drv->cooling_method_supported) ? true : false; + + return exists ? attr->mode : 0; +} + +static const struct attribute_group toshiba_attr_group = { + .is_visible = toshiba_sysfs_is_visible, + .attrs = toshiba_attributes, +}; + +static void toshiba_acpi_kbd_bl_work(struct work_struct *work) +{ + /* Update the sysfs entries */ + if (sysfs_update_group(&toshiba_acpi->acpi_dev->dev.kobj, + &toshiba_attr_group)) + pr_err("Unable to update sysfs entries\n"); + + /* Notify LED subsystem about keyboard backlight change */ + if (toshiba_acpi->kbd_type == 2 && + toshiba_acpi->kbd_mode != SCI_KBD_MODE_AUTO) + led_classdev_notify_brightness_hw_changed(&toshiba_acpi->kbd_led, + (toshiba_acpi->kbd_mode == SCI_KBD_MODE_ON) ? + LED_FULL : LED_OFF); + + /* Emulate the keyboard backlight event */ + acpi_bus_generate_netlink_event(toshiba_acpi->acpi_dev->pnp.device_class, + dev_name(&toshiba_acpi->acpi_dev->dev), + 0x92, 0); +} + +/* + * IIO device + */ + +enum toshiba_iio_accel_chan { + AXIS_X, + AXIS_Y, + AXIS_Z +}; + +static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan) +{ + u32 xyval, zval; + int ret; + + ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval); + if (ret < 0) + return ret; + + switch (chan) { + case AXIS_X: + return xyval & HCI_ACCEL_DIRECTION_MASK ? + -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK; + case AXIS_Y: + return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ? + -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) : + (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK; + case AXIS_Z: + return zval & HCI_ACCEL_DIRECTION_MASK ? + -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK; + } + + return ret; +} + +static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + int ret; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + ret = toshiba_iio_accel_get_axis(chan->channel); + if (ret == -EIO || ret == -ENODEV) + return ret; + + *val = ret; + + return IIO_VAL_INT; + } + + return -EINVAL; +} + +#define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \ + .type = IIO_ACCEL, \ + .modified = 1, \ + .channel = chan, \ + .channel2 = IIO_MOD_##axis, \ + .output = 1, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ +} + +static const struct iio_chan_spec toshiba_iio_accel_channels[] = { + TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X), + TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y), + TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z), +}; + +static const struct iio_info toshiba_iio_accel_info = { + .read_raw = &toshiba_iio_accel_read_raw, +}; + +/* + * 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(®s, argp, sizeof(SMMRegisters))) + return -EFAULT; + ret = toshiba_acpi_smm_bridge(®s); + if (ret) + return ret; + if (copy_to_user(argp, ®s, sizeof(SMMRegisters))) + return -EFAULT; + break; + case TOSHIBA_ACPI_SCI: + if (copy_from_user(®s, 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(®s); + sci_close(toshiba_acpi); + if (ret) + return ret; + if (copy_to_user(argp, ®s, 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, +}; + +/* + * WWAN RFKill handlers + */ +static int toshiba_acpi_wwan_set_block(void *data, bool blocked) +{ + struct toshiba_acpi_dev *dev = data; + int ret; + + ret = toshiba_wireless_status(dev); + if (ret) + return ret; + + if (!dev->killswitch) + return 0; + + return toshiba_wwan_set(dev, !blocked); +} + +static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data) +{ + struct toshiba_acpi_dev *dev = data; + + if (toshiba_wireless_status(dev)) + return; + + rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch); +} + +static const struct rfkill_ops wwan_rfk_ops = { + .set_block = toshiba_acpi_wwan_set_block, + .poll = toshiba_acpi_wwan_poll, +}; + +static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev) +{ + int ret = toshiba_wireless_status(dev); + + if (ret) + return ret; + + dev->wwan_rfk = rfkill_alloc("Toshiba WWAN", + &dev->acpi_dev->dev, + RFKILL_TYPE_WWAN, + &wwan_rfk_ops, + dev); + if (!dev->wwan_rfk) { + pr_err("Unable to allocate WWAN rfkill device\n"); + return -ENOMEM; + } + + rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch); + + ret = rfkill_register(dev->wwan_rfk); + if (ret) { + pr_err("Unable to register WWAN rfkill device\n"); + rfkill_destroy(dev->wwan_rfk); + } + + return ret; +} + +/* + * 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; + + /* + * Enable the "Special Functions" mode only if they are + * supported and if they are activated. + */ + if (dev->kbd_function_keys_supported && dev->special_functions) + result = hci_write(dev, HCI_HOTKEY_EVENT, + HCI_HOTKEY_SPECIAL_FUNCTIONS); + else + 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 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"); + fallthrough; + 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; + int error; + + if (disable_hotkeys) { + pr_info("Hotkeys disabled by module parameter\n"); + return 0; + } + + 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; + + if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type)) + pr_notice("Unable to query Hotkey Event Type\n"); + + 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; + dev->hotkey_dev->dev.parent = &dev->acpi_dev->dev; + + if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 || + !dev->kbd_function_keys_supported) + keymap = toshiba_acpi_keymap; + else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 || + dev->kbd_function_keys_supported) + keymap = toshiba_acpi_alt_keymap; + else + pr_info("Unknown event type received %x\n", + dev->hotkey_event_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_dev; + } + + 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 if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS) + dev->system_event_supported = 1; + + if (!dev->info_supported && !dev->system_event_supported) { + pr_warn("No hotkey query interface found\n"); + error = -EINVAL; + 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_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; + /* + * If transflective backlight is supported and the brightness is zero + * (lowest brightness level), the set_lcd_brightness function will + * activate the transflective backlight, making the LCD appear to be + * turned off, simply increment the brightness level to avoid that. + */ + if (dev->tr_backlight_supported && brightness == 0) + brightness++; + ret = set_lcd_brightness(dev, brightness); + if (ret) { + pr_debug("Backlight method is read-only, disabling backlight support\n"); + return 0; + } + + 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; +} + +/* HWMON support for fan */ +#if IS_ENABLED(CONFIG_HWMON) +static umode_t toshiba_acpi_hwmon_is_visible(const void *drvdata, + enum hwmon_sensor_types type, + u32 attr, int channel) +{ + return 0444; +} + +static int toshiba_acpi_hwmon_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + /* + * There is only a single channel and single attribute (for the + * fan) at this point. + * This can be replaced with more advanced logic in the future, + * should the need arise. + */ + if (type == hwmon_fan && channel == 0 && attr == hwmon_fan_input) { + u32 value; + int ret; + + ret = get_fan_rpm(toshiba_acpi, &value); + if (ret) + return ret; + + *val = value; + return 0; + } + return -EOPNOTSUPP; +} + +static const struct hwmon_channel_info *toshiba_acpi_hwmon_info[] = { + HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT), + NULL +}; + +static const struct hwmon_ops toshiba_acpi_hwmon_ops = { + .is_visible = toshiba_acpi_hwmon_is_visible, + .read = toshiba_acpi_hwmon_read, +}; + +static const struct hwmon_chip_info toshiba_acpi_hwmon_chip_info = { + .ops = &toshiba_acpi_hwmon_ops, + .info = toshiba_acpi_hwmon_info, +}; +#endif + +/* ACPI battery hooking */ +static ssize_t charge_control_end_threshold_show(struct device *device, + struct device_attribute *attr, + char *buf) +{ + u32 state; + int status; + + if (toshiba_acpi == NULL) { + pr_err("Toshiba ACPI object invalid\n"); + return -ENODEV; + } + + status = toshiba_battery_charge_mode_get(toshiba_acpi, &state); + + if (status != 0) + return status; + + if (state == 1) + return sprintf(buf, "80\n"); + else + return sprintf(buf, "100\n"); +} + +static ssize_t charge_control_end_threshold_store(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + u32 value; + int rval; + + if (toshiba_acpi == NULL) { + pr_err("Toshiba ACPI object invalid\n"); + return -ENODEV; + } + + rval = kstrtou32(buf, 10, &value); + if (rval) + return rval; + + if (value < 1 || value > 100) + return -EINVAL; + rval = toshiba_battery_charge_mode_set(toshiba_acpi, + (value < 90) ? 1 : 0); + if (rval < 0) + return rval; + else + return count; +} + +static DEVICE_ATTR_RW(charge_control_end_threshold); + +static struct attribute *toshiba_acpi_battery_attrs[] = { + &dev_attr_charge_control_end_threshold.attr, + NULL, +}; + +ATTRIBUTE_GROUPS(toshiba_acpi_battery); + +static int toshiba_acpi_battery_add(struct power_supply *battery) +{ + if (toshiba_acpi == NULL) { + pr_err("Init order issue\n"); + return -ENODEV; + } + if (!toshiba_acpi->battery_charge_mode_supported) + return -ENODEV; + if (device_add_groups(&battery->dev, toshiba_acpi_battery_groups)) + return -ENODEV; + return 0; +} + +static int toshiba_acpi_battery_remove(struct power_supply *battery) +{ + device_remove_groups(&battery->dev, toshiba_acpi_battery_groups); + return 0; +} + +static struct acpi_battery_hook battery_hook = { + .add_battery = toshiba_acpi_battery_add, + .remove_battery = toshiba_acpi_battery_remove, + .name = "Toshiba Battery Extension", +}; + +static void print_supported_features(struct toshiba_acpi_dev *dev) +{ + pr_info("Supported laptop features:"); + + if (dev->hotkey_dev) + pr_cont(" hotkeys"); + if (dev->backlight_dev) + pr_cont(" backlight"); + if (dev->video_supported) + pr_cont(" video-out"); + if (dev->fan_supported) + pr_cont(" fan"); + if (dev->fan_rpm_supported) + pr_cont(" fan-rpm"); + if (dev->tr_backlight_supported) + pr_cont(" transflective-backlight"); + if (dev->illumination_supported) + pr_cont(" illumination"); + if (dev->kbd_illum_supported) + pr_cont(" keyboard-backlight"); + if (dev->touchpad_supported) + pr_cont(" touchpad"); + if (dev->eco_supported) + pr_cont(" eco-led"); + if (dev->accelerometer_supported) + pr_cont(" accelerometer-axes"); + if (dev->usb_sleep_charge_supported) + pr_cont(" usb-sleep-charge"); + if (dev->usb_rapid_charge_supported) + pr_cont(" usb-rapid-charge"); + if (dev->usb_sleep_music_supported) + pr_cont(" usb-sleep-music"); + if (dev->kbd_function_keys_supported) + pr_cont(" special-function-keys"); + if (dev->panel_power_on_supported) + pr_cont(" panel-power-on"); + if (dev->usb_three_supported) + pr_cont(" usb3"); + if (dev->wwan_supported) + pr_cont(" wwan"); + if (dev->cooling_method_supported) + pr_cont(" cooling-method"); + if (dev->battery_charge_mode_supported) + pr_cont(" battery-charge-mode"); + + pr_cont("\n"); +} + +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 IS_ENABLED(CONFIG_HWMON) + if (dev->hwmon_device) + hwmon_device_unregister(dev->hwmon_device); +#endif + + if (dev->accelerometer_supported && dev->indio_dev) { + iio_device_unregister(dev->indio_dev); + iio_device_free(dev->indio_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); + + backlight_device_unregister(dev->backlight_dev); + + led_classdev_unregister(&dev->led_dev); + led_classdev_unregister(&dev->kbd_led); + led_classdev_unregister(&dev->eco_led); + + if (dev->wwan_rfk) { + rfkill_unregister(dev->wwan_rfk); + rfkill_destroy(dev->wwan_rfk); + } + + if (dev->battery_charge_mode_supported) + battery_hook_unregister(&battery_hook); + + 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; +} + +/* + * Some Toshibas have a broken acpi-video interface for brightness control, + * these are quirked in drivers/acpi/video_detect.c to use the GPU native + * (/sys/class/backlight/intel_backlight) instead. + * But these need a HCI_SET call to actually turn the panel back on at resume, + * without this call the screen stays black at resume. + * Either HCI_LCD_BRIGHTNESS (used by acpi_video's _BCM) or HCI_PANEL_POWER_ON + * works. toshiba_acpi_resume() uses HCI_PANEL_POWER_ON to avoid changing + * the configured brightness level. + */ +static const struct dmi_system_id turn_on_panel_on_resume_dmi_ids[] = { + { + /* Toshiba Portégé R700 */ + /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"), + }, + }, + { + /* Toshiba Satellite/Portégé R830 */ + /* Portégé: https://bugs.freedesktop.org/show_bug.cgi?id=82634 */ + /* Satellite: https://bugzilla.kernel.org/show_bug.cgi?id=21012 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + DMI_MATCH(DMI_PRODUCT_NAME, "R830"), + }, + }, + { + /* Toshiba Satellite/Portégé Z830 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + DMI_MATCH(DMI_PRODUCT_NAME, "Z830"), + }, + }, +}; + +static int toshiba_acpi_add(struct acpi_device *acpi_dev) +{ + struct toshiba_acpi_dev *dev; + const char *hci_method; + 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, &dev->special_functions); + dev->kbd_function_keys_supported = !ret; + + dev->hotkey_event_type = 0; + 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; + + toshiba_illumination_available(dev); + if (dev->illumination_supported) { + 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; + led_classdev_register(&acpi_dev->dev, &dev->led_dev); + } + + toshiba_eco_mode_available(dev); + if (dev->eco_supported) { + 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; + led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led); + } + + 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 + * or we detect a second gen keyboard backlight + */ + if (dev->kbd_illum_supported && + (dev->kbd_mode == SCI_KBD_MODE_FNZ || dev->kbd_type == 2)) { + dev->kbd_led.name = "toshiba::kbd_backlight"; + dev->kbd_led.flags = LED_BRIGHT_HW_CHANGED; + dev->kbd_led.max_brightness = 1; + dev->kbd_led.brightness_set = toshiba_kbd_backlight_set; + dev->kbd_led.brightness_get = toshiba_kbd_backlight_get; + led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led); + } + + ret = toshiba_touchpad_get(dev, &dummy); + dev->touchpad_supported = !ret; + + toshiba_accelerometer_available(dev); + if (dev->accelerometer_supported) { + dev->indio_dev = iio_device_alloc(&acpi_dev->dev, sizeof(*dev)); + if (!dev->indio_dev) { + pr_err("Unable to allocate iio device\n"); + goto iio_error; + } + + pr_info("Registering Toshiba accelerometer iio device\n"); + + dev->indio_dev->info = &toshiba_iio_accel_info; + dev->indio_dev->name = "Toshiba accelerometer"; + dev->indio_dev->modes = INDIO_DIRECT_MODE; + dev->indio_dev->channels = toshiba_iio_accel_channels; + dev->indio_dev->num_channels = + ARRAY_SIZE(toshiba_iio_accel_channels); + + ret = iio_device_register(dev->indio_dev); + if (ret < 0) { + pr_err("Unable to register iio device\n"); + iio_device_free(dev->indio_dev); + } + } +iio_error: + + 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; + + ret = get_fan_rpm(dev, &dummy); + dev->fan_rpm_supported = !ret; + +#if IS_ENABLED(CONFIG_HWMON) + if (dev->fan_rpm_supported) { + dev->hwmon_device = hwmon_device_register_with_info( + &dev->acpi_dev->dev, "toshiba_acpi_sensors", NULL, + &toshiba_acpi_hwmon_chip_info, NULL); + if (IS_ERR(dev->hwmon_device)) { + dev->hwmon_device = NULL; + pr_warn("unable to register hwmon device, skipping\n"); + } + } +#endif + + if (turn_on_panel_on_resume == -1) + turn_on_panel_on_resume = dmi_check_system(turn_on_panel_on_resume_dmi_ids); + + toshiba_wwan_available(dev); + if (dev->wwan_supported) + toshiba_acpi_setup_wwan_rfkill(dev); + + toshiba_cooling_method_available(dev); + + toshiba_battery_charge_mode_available(dev); + + print_supported_features(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; + + /* + * As the battery hook relies on the static variable toshiba_acpi being + * set, this must be done after toshiba_acpi is assigned. + */ + if (dev->battery_charge_mode_supported) + battery_hook_register(&battery_hook); + + 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); + + 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 */ + dev->kbd_event_generated = true; + /* Update sysfs entries */ + if (sysfs_update_group(&acpi_dev->dev.kobj, + &toshiba_attr_group)) + pr_err("Unable to update sysfs entries\n"); + /* Notify LED subsystem about keyboard backlight change */ + if (dev->kbd_type == 2 && dev->kbd_mode != SCI_KBD_MODE_AUTO) + led_classdev_notify_brightness_hw_changed(&dev->kbd_led, + (dev->kbd_mode == SCI_KBD_MODE_ON) ? + LED_FULL : LED_OFF); + 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, (event == 0x80) ? + dev->last_key_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) { + if (toshiba_acpi_enable_hotkeys(dev)) + pr_info("Unable to re-enable hotkeys\n"); + } + + if (dev->wwan_rfk) { + if (!toshiba_wireless_status(dev)) + rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch); + } + + if (turn_on_panel_on_resume) + hci_write(dev, HCI_PANEL_POWER_ON, 1); + + 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); |