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v6.2
   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *  toshiba_acpi.c - Toshiba Laptop ACPI Extras
   4 *
   5 *  Copyright (C) 2002-2004 John Belmonte
   6 *  Copyright (C) 2008 Philip Langdale
   7 *  Copyright (C) 2010 Pierre Ducroquet
   8 *  Copyright (C) 2014-2016 Azael Avalos
   9 *
 
 
 
 
 
 
 
 
 
 
 
 
 
  10 *  The devolpment page for this driver is located at
  11 *  http://memebeam.org/toys/ToshibaAcpiDriver.
  12 *
  13 *  Credits:
  14 *	Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
  15 *		engineering the Windows drivers
  16 *	Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
  17 *	Rob Miller - TV out and hotkeys help
  18 */
  19
  20#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  21
  22#define TOSHIBA_ACPI_VERSION	"0.24"
  23#define PROC_INTERFACE_VERSION	1
  24
  25#include <linux/compiler.h>
  26#include <linux/dmi.h>
  27#include <linux/kernel.h>
  28#include <linux/module.h>
  29#include <linux/moduleparam.h>
  30#include <linux/init.h>
  31#include <linux/types.h>
  32#include <linux/proc_fs.h>
  33#include <linux/seq_file.h>
  34#include <linux/backlight.h>
  35#include <linux/input.h>
  36#include <linux/input/sparse-keymap.h>
  37#include <linux/leds.h>
  38#include <linux/slab.h>
  39#include <linux/workqueue.h>
  40#include <linux/i8042.h>
  41#include <linux/acpi.h>
 
  42#include <linux/uaccess.h>
  43#include <linux/miscdevice.h>
  44#include <linux/rfkill.h>
  45#include <linux/hwmon.h>
  46#include <linux/iio/iio.h>
  47#include <linux/toshiba.h>
  48#include <acpi/battery.h>
  49#include <acpi/video.h>
  50
  51MODULE_AUTHOR("John Belmonte");
  52MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
  53MODULE_LICENSE("GPL");
  54
  55static int turn_on_panel_on_resume = -1;
  56module_param(turn_on_panel_on_resume, int, 0644);
  57MODULE_PARM_DESC(turn_on_panel_on_resume,
  58	"Call HCI_PANEL_POWER_ON on resume (-1 = auto, 0 = no, 1 = yes");
  59
  60#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
  61
  62/* Scan code for Fn key on TOS1900 models */
  63#define TOS1900_FN_SCAN		0x6e
  64
  65/* Toshiba ACPI method paths */
  66#define METHOD_VIDEO_OUT	"\\_SB_.VALX.DSSX"
  67
  68/*
  69 * The Toshiba configuration interface is composed of the HCI and the SCI,
  70 * which are defined as follows:
  71 *
  72 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
  73 * be uniform across all their models.  Ideally we would just call
  74 * dedicated ACPI methods instead of using this primitive interface.
  75 * However the ACPI methods seem to be incomplete in some areas (for
  76 * example they allow setting, but not reading, the LCD brightness value),
  77 * so this is still useful.
  78 *
  79 * SCI stands for "System Configuration Interface" which aim is to
  80 * conceal differences in hardware between different models.
  81 */
  82
  83#define TCI_WORDS			6
  84
  85/* Operations */
  86#define HCI_SET				0xff00
  87#define HCI_GET				0xfe00
  88#define SCI_OPEN			0xf100
  89#define SCI_CLOSE			0xf200
  90#define SCI_GET				0xf300
  91#define SCI_SET				0xf400
  92
  93/* Return codes */
  94#define TOS_SUCCESS			0x0000
  95#define TOS_SUCCESS2			0x0001
  96#define TOS_OPEN_CLOSE_OK		0x0044
  97#define TOS_FAILURE			0x1000
  98#define TOS_NOT_SUPPORTED		0x8000
  99#define TOS_ALREADY_OPEN		0x8100
 100#define TOS_NOT_OPENED			0x8200
 101#define TOS_INPUT_DATA_ERROR		0x8300
 102#define TOS_WRITE_PROTECTED		0x8400
 103#define TOS_NOT_PRESENT			0x8600
 104#define TOS_FIFO_EMPTY			0x8c00
 105#define TOS_DATA_NOT_AVAILABLE		0x8d20
 106#define TOS_NOT_INITIALIZED		0x8d50
 107#define TOS_NOT_INSTALLED		0x8e00
 108
 109/* Registers */
 110#define HCI_PANEL_POWER_ON		0x0002
 111#define HCI_FAN				0x0004
 112#define HCI_TR_BACKLIGHT		0x0005
 113#define HCI_SYSTEM_EVENT		0x0016
 114#define HCI_VIDEO_OUT			0x001c
 115#define HCI_HOTKEY_EVENT		0x001e
 116#define HCI_LCD_BRIGHTNESS		0x002a
 117#define HCI_FAN_RPM			0x0045
 118#define HCI_WIRELESS			0x0056
 119#define HCI_ACCELEROMETER		0x006d
 120#define HCI_COOLING_METHOD		0x007f
 121#define HCI_KBD_ILLUMINATION		0x0095
 122#define HCI_ECO_MODE			0x0097
 123#define HCI_ACCELEROMETER2		0x00a6
 124#define HCI_BATTERY_CHARGE_MODE		0x00ba
 125#define HCI_SYSTEM_INFO			0xc000
 126#define SCI_PANEL_POWER_ON		0x010d
 127#define SCI_ILLUMINATION		0x014e
 128#define SCI_USB_SLEEP_CHARGE		0x0150
 129#define SCI_KBD_ILLUM_STATUS		0x015c
 130#define SCI_USB_SLEEP_MUSIC		0x015e
 131#define SCI_USB_THREE			0x0169
 132#define SCI_TOUCHPAD			0x050e
 133#define SCI_KBD_FUNCTION_KEYS		0x0522
 134
 135/* Field definitions */
 136#define HCI_ACCEL_MASK			0x7fff
 137#define HCI_ACCEL_DIRECTION_MASK	0x8000
 138#define HCI_HOTKEY_DISABLE		0x0b
 139#define HCI_HOTKEY_ENABLE		0x09
 140#define HCI_HOTKEY_SPECIAL_FUNCTIONS	0x10
 141#define HCI_LCD_BRIGHTNESS_BITS		3
 142#define HCI_LCD_BRIGHTNESS_SHIFT	(16-HCI_LCD_BRIGHTNESS_BITS)
 143#define HCI_LCD_BRIGHTNESS_LEVELS	(1 << HCI_LCD_BRIGHTNESS_BITS)
 144#define HCI_MISC_SHIFT			0x10
 145#define HCI_SYSTEM_TYPE1		0x10
 146#define HCI_SYSTEM_TYPE2		0x11
 147#define HCI_VIDEO_OUT_LCD		0x1
 148#define HCI_VIDEO_OUT_CRT		0x2
 149#define HCI_VIDEO_OUT_TV		0x4
 150#define SCI_KBD_MODE_MASK		0x1f
 151#define SCI_KBD_MODE_FNZ		0x1
 152#define SCI_KBD_MODE_AUTO		0x2
 153#define SCI_KBD_MODE_ON			0x8
 154#define SCI_KBD_MODE_OFF		0x10
 155#define SCI_KBD_TIME_MAX		0x3c001a
 156#define HCI_WIRELESS_STATUS		0x1
 157#define HCI_WIRELESS_WWAN		0x3
 158#define HCI_WIRELESS_WWAN_STATUS	0x2000
 159#define HCI_WIRELESS_WWAN_POWER		0x4000
 160#define SCI_USB_CHARGE_MODE_MASK	0xff
 161#define SCI_USB_CHARGE_DISABLED		0x00
 162#define SCI_USB_CHARGE_ALTERNATE	0x09
 163#define SCI_USB_CHARGE_TYPICAL		0x11
 164#define SCI_USB_CHARGE_AUTO		0x21
 165#define SCI_USB_CHARGE_BAT_MASK		0x7
 166#define SCI_USB_CHARGE_BAT_LVL_OFF	0x1
 167#define SCI_USB_CHARGE_BAT_LVL_ON	0x4
 168#define SCI_USB_CHARGE_BAT_LVL		0x0200
 169#define SCI_USB_CHARGE_RAPID_DSP	0x0300
 170
 171struct toshiba_acpi_dev {
 172	struct acpi_device *acpi_dev;
 173	const char *method_hci;
 174	struct input_dev *hotkey_dev;
 175	struct work_struct hotkey_work;
 176	struct backlight_device *backlight_dev;
 177	struct led_classdev led_dev;
 178	struct led_classdev kbd_led;
 179	struct led_classdev eco_led;
 180	struct miscdevice miscdev;
 181	struct rfkill *wwan_rfk;
 182	struct iio_dev *indio_dev;
 183#if IS_ENABLED(CONFIG_HWMON)
 184	struct device *hwmon_device;
 185#endif
 186
 187	int force_fan;
 188	int last_key_event;
 189	int key_event_valid;
 190	int kbd_type;
 191	int kbd_mode;
 192	int kbd_time;
 193	int usbsc_bat_level;
 194	int usbsc_mode_base;
 195	int hotkey_event_type;
 196	int max_cooling_method;
 197
 198	unsigned int illumination_supported:1;
 199	unsigned int video_supported:1;
 200	unsigned int fan_supported:1;
 201	unsigned int fan_rpm_supported:1;
 202	unsigned int system_event_supported:1;
 203	unsigned int ntfy_supported:1;
 204	unsigned int info_supported:1;
 205	unsigned int tr_backlight_supported:1;
 206	unsigned int kbd_illum_supported:1;
 207	unsigned int touchpad_supported:1;
 208	unsigned int eco_supported:1;
 209	unsigned int accelerometer_supported:1;
 210	unsigned int usb_sleep_charge_supported:1;
 211	unsigned int usb_rapid_charge_supported:1;
 212	unsigned int usb_sleep_music_supported:1;
 213	unsigned int kbd_function_keys_supported:1;
 214	unsigned int panel_power_on_supported:1;
 215	unsigned int usb_three_supported:1;
 216	unsigned int wwan_supported:1;
 217	unsigned int cooling_method_supported:1;
 218	unsigned int battery_charge_mode_supported:1;
 219	unsigned int sysfs_created:1;
 220	unsigned int special_functions;
 221
 222	bool kbd_event_generated;
 
 
 
 223	bool killswitch;
 224};
 225
 226static struct toshiba_acpi_dev *toshiba_acpi;
 227
 228static bool disable_hotkeys;
 229module_param(disable_hotkeys, bool, 0444);
 230MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
 231
 232static const struct acpi_device_id toshiba_device_ids[] = {
 233	{"TOS6200", 0},
 234	{"TOS6207", 0},
 235	{"TOS6208", 0},
 236	{"TOS1900", 0},
 237	{"", 0},
 238};
 239MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
 240
 241static const struct key_entry toshiba_acpi_keymap[] = {
 242	{ KE_KEY, 0x9e, { KEY_RFKILL } },
 243	{ KE_KEY, 0x101, { KEY_MUTE } },
 244	{ KE_KEY, 0x102, { KEY_ZOOMOUT } },
 245	{ KE_KEY, 0x103, { KEY_ZOOMIN } },
 246	{ KE_KEY, 0x10f, { KEY_TAB } },
 247	{ KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
 248	{ KE_KEY, 0x139, { KEY_ZOOMRESET } },
 249	{ KE_KEY, 0x13b, { KEY_COFFEE } },
 250	{ KE_KEY, 0x13c, { KEY_BATTERY } },
 251	{ KE_KEY, 0x13d, { KEY_SLEEP } },
 252	{ KE_KEY, 0x13e, { KEY_SUSPEND } },
 253	{ KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
 254	{ KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
 255	{ KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
 256	{ KE_KEY, 0x142, { KEY_WLAN } },
 257	{ KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
 258	{ KE_KEY, 0x17f, { KEY_FN } },
 259	{ KE_KEY, 0xb05, { KEY_PROG2 } },
 260	{ KE_KEY, 0xb06, { KEY_WWW } },
 261	{ KE_KEY, 0xb07, { KEY_MAIL } },
 262	{ KE_KEY, 0xb30, { KEY_STOP } },
 263	{ KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
 264	{ KE_KEY, 0xb32, { KEY_NEXTSONG } },
 265	{ KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
 266	{ KE_KEY, 0xb5a, { KEY_MEDIA } },
 267	{ KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
 268	{ KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
 269	{ KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
 270	{ KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
 271	{ KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
 272	{ KE_END, 0 },
 273};
 274
 275static const struct key_entry toshiba_acpi_alt_keymap[] = {
 276	{ KE_KEY, 0x102, { KEY_ZOOMOUT } },
 277	{ KE_KEY, 0x103, { KEY_ZOOMIN } },
 278	{ KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
 279	{ KE_KEY, 0x139, { KEY_ZOOMRESET } },
 280	{ KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
 281	{ KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
 282	{ KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
 283	{ KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
 284	{ KE_KEY, 0x157, { KEY_MUTE } },
 285	{ KE_KEY, 0x158, { KEY_WLAN } },
 286	{ KE_END, 0 },
 287};
 288
 289/*
 
 
 
 
 
 
 
 
 290 * Utility
 291 */
 292
 293static inline void _set_bit(u32 *word, u32 mask, int value)
 294{
 295	*word = (*word & ~mask) | (mask * value);
 296}
 297
 298/*
 299 * ACPI interface wrappers
 300 */
 301
 302static int write_acpi_int(const char *methodName, int val)
 303{
 304	acpi_status status;
 305
 306	status = acpi_execute_simple_method(NULL, (char *)methodName, val);
 307	return (status == AE_OK) ? 0 : -EIO;
 308}
 309
 310/*
 311 * Perform a raw configuration call.  Here we don't care about input or output
 312 * buffer format.
 313 */
 314static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
 315			   const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
 316{
 317	union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
 318	struct acpi_object_list params;
 319	struct acpi_buffer results;
 320	acpi_status status;
 321	int i;
 322
 323	params.count = TCI_WORDS;
 324	params.pointer = in_objs;
 325	for (i = 0; i < TCI_WORDS; ++i) {
 326		in_objs[i].type = ACPI_TYPE_INTEGER;
 327		in_objs[i].integer.value = in[i];
 328	}
 329
 330	results.length = sizeof(out_objs);
 331	results.pointer = out_objs;
 332
 333	status = acpi_evaluate_object(dev->acpi_dev->handle,
 334				      (char *)dev->method_hci, &params,
 335				      &results);
 336	if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
 337		for (i = 0; i < out_objs->package.count; ++i)
 338			out[i] = out_objs->package.elements[i].integer.value;
 339	}
 340
 341	return status;
 342}
 343
 344/*
 345 * Common hci tasks
 346 *
 347 * In addition to the ACPI status, the HCI system returns a result which
 348 * may be useful (such as "not supported").
 349 */
 350
 351static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
 352{
 353	u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
 354	u32 out[TCI_WORDS];
 355	acpi_status status = tci_raw(dev, in, out);
 356
 357	return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
 358}
 359
 360static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
 361{
 362	u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
 363	u32 out[TCI_WORDS];
 364	acpi_status status = tci_raw(dev, in, out);
 365
 366	if (ACPI_FAILURE(status))
 367		return TOS_FAILURE;
 368
 369	*out1 = out[2];
 370
 371	return out[0];
 372}
 373
 374/*
 375 * Common sci tasks
 376 */
 377
 378static int sci_open(struct toshiba_acpi_dev *dev)
 379{
 380	u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
 381	u32 out[TCI_WORDS];
 382	acpi_status status = tci_raw(dev, in, out);
 383
 384	if  (ACPI_FAILURE(status)) {
 385		pr_err("ACPI call to open SCI failed\n");
 386		return 0;
 387	}
 388
 389	if (out[0] == TOS_OPEN_CLOSE_OK) {
 390		return 1;
 391	} else if (out[0] == TOS_ALREADY_OPEN) {
 392		pr_info("Toshiba SCI already opened\n");
 393		return 1;
 394	} else if (out[0] == TOS_NOT_SUPPORTED) {
 395		/*
 396		 * Some BIOSes do not have the SCI open/close functions
 397		 * implemented and return 0x8000 (Not Supported), failing to
 398		 * register some supported features.
 399		 *
 400		 * Simply return 1 if we hit those affected laptops to make the
 401		 * supported features work.
 402		 *
 403		 * In the case that some laptops really do not support the SCI,
 404		 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
 405		 * and thus, not registering support for the queried feature.
 406		 */
 407		return 1;
 408	} else if (out[0] == TOS_NOT_PRESENT) {
 409		pr_info("Toshiba SCI is not present\n");
 410	}
 411
 412	return 0;
 413}
 414
 415static void sci_close(struct toshiba_acpi_dev *dev)
 416{
 417	u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
 418	u32 out[TCI_WORDS];
 419	acpi_status status = tci_raw(dev, in, out);
 420
 421	if (ACPI_FAILURE(status)) {
 422		pr_err("ACPI call to close SCI failed\n");
 423		return;
 424	}
 425
 426	if (out[0] == TOS_OPEN_CLOSE_OK)
 427		return;
 428	else if (out[0] == TOS_NOT_OPENED)
 429		pr_info("Toshiba SCI not opened\n");
 430	else if (out[0] == TOS_NOT_PRESENT)
 431		pr_info("Toshiba SCI is not present\n");
 432}
 433
 434static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
 435{
 436	u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
 437	u32 out[TCI_WORDS];
 438	acpi_status status = tci_raw(dev, in, out);
 439
 440	if (ACPI_FAILURE(status))
 441		return TOS_FAILURE;
 442
 443	*out1 = out[2];
 444
 445	return out[0];
 446}
 447
 448static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
 449{
 450	u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
 451	u32 out[TCI_WORDS];
 452	acpi_status status = tci_raw(dev, in, out);
 453
 454	return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
 455}
 456
 457/* Illumination support */
 458static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
 459{
 460	u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
 461	u32 out[TCI_WORDS];
 462	acpi_status status;
 463
 464	dev->illumination_supported = 0;
 
 465
 466	if (!sci_open(dev))
 467		return;
 468
 469	status = tci_raw(dev, in, out);
 470	sci_close(dev);
 471	if (ACPI_FAILURE(status)) {
 472		pr_err("ACPI call to query Illumination support failed\n");
 473		return;
 474	}
 475
 476	if (out[0] != TOS_SUCCESS)
 477		return;
 478
 479	dev->illumination_supported = 1;
 480}
 481
 482static void toshiba_illumination_set(struct led_classdev *cdev,
 483				     enum led_brightness brightness)
 484{
 485	struct toshiba_acpi_dev *dev = container_of(cdev,
 486			struct toshiba_acpi_dev, led_dev);
 487	u32 result;
 488	u32 state;
 489
 490	/* First request : initialize communication. */
 491	if (!sci_open(dev))
 492		return;
 493
 494	/* Switch the illumination on/off */
 495	state = brightness ? 1 : 0;
 496	result = sci_write(dev, SCI_ILLUMINATION, state);
 497	sci_close(dev);
 498	if (result == TOS_FAILURE)
 499		pr_err("ACPI call for illumination failed\n");
 500}
 501
 502static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
 503{
 504	struct toshiba_acpi_dev *dev = container_of(cdev,
 505			struct toshiba_acpi_dev, led_dev);
 506	u32 result;
 507	u32 state;
 508
 509	/* First request : initialize communication. */
 510	if (!sci_open(dev))
 511		return LED_OFF;
 512
 513	/* Check the illumination */
 514	result = sci_read(dev, SCI_ILLUMINATION, &state);
 515	sci_close(dev);
 516	if (result == TOS_FAILURE) {
 517		pr_err("ACPI call for illumination failed\n");
 518		return LED_OFF;
 519	} else if (result != TOS_SUCCESS) {
 520		return LED_OFF;
 521	}
 522
 523	return state ? LED_FULL : LED_OFF;
 524}
 525
 526/* KBD Illumination */
 527static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
 528{
 529	u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
 530	u32 out[TCI_WORDS];
 531	acpi_status status;
 532
 533	dev->kbd_illum_supported = 0;
 
 534	dev->kbd_event_generated = false;
 535
 536	if (!sci_open(dev))
 537		return;
 538
 539	status = tci_raw(dev, in, out);
 540	sci_close(dev);
 541	if (ACPI_FAILURE(status)) {
 542		pr_err("ACPI call to query kbd illumination support failed\n");
 543		return;
 544	}
 545
 546	if (out[0] != TOS_SUCCESS)
 547		return;
 548
 549	/*
 550	 * Check for keyboard backlight timeout max value,
 551	 * previous kbd backlight implementation set this to
 552	 * 0x3c0003, and now the new implementation set this
 553	 * to 0x3c001a, use this to distinguish between them.
 554	 */
 555	if (out[3] == SCI_KBD_TIME_MAX)
 556		dev->kbd_type = 2;
 557	else
 558		dev->kbd_type = 1;
 559	/* Get the current keyboard backlight mode */
 560	dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
 561	/* Get the current time (1-60 seconds) */
 562	dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
 563	/* Flag as supported */
 564	dev->kbd_illum_supported = 1;
 565}
 566
 567static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
 568{
 569	u32 result;
 570
 571	if (!sci_open(dev))
 572		return -EIO;
 573
 574	result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
 575	sci_close(dev);
 576	if (result == TOS_FAILURE)
 577		pr_err("ACPI call to set KBD backlight status failed\n");
 578	else if (result == TOS_NOT_SUPPORTED)
 579		return -ENODEV;
 580
 581	return result == TOS_SUCCESS ? 0 : -EIO;
 582}
 583
 584static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
 585{
 586	u32 result;
 587
 588	if (!sci_open(dev))
 589		return -EIO;
 590
 591	result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
 592	sci_close(dev);
 593	if (result == TOS_FAILURE)
 594		pr_err("ACPI call to get KBD backlight status failed\n");
 595	else if (result == TOS_NOT_SUPPORTED)
 596		return -ENODEV;
 597
 598	return result == TOS_SUCCESS ? 0 : -EIO;
 599}
 600
 601static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
 602{
 603	struct toshiba_acpi_dev *dev = container_of(cdev,
 604			struct toshiba_acpi_dev, kbd_led);
 605	u32 result;
 606	u32 state;
 607
 608	/* Check the keyboard backlight state */
 609	result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
 610	if (result == TOS_FAILURE) {
 611		pr_err("ACPI call to get the keyboard backlight failed\n");
 612		return LED_OFF;
 613	} else if (result != TOS_SUCCESS) {
 614		return LED_OFF;
 615	}
 616
 617	return state ? LED_FULL : LED_OFF;
 618}
 619
 620static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
 621				     enum led_brightness brightness)
 622{
 623	struct toshiba_acpi_dev *dev = container_of(cdev,
 624			struct toshiba_acpi_dev, kbd_led);
 625	u32 result;
 626	u32 state;
 627
 628	/* Set the keyboard backlight state */
 629	state = brightness ? 1 : 0;
 630	result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
 631	if (result == TOS_FAILURE)
 632		pr_err("ACPI call to set KBD Illumination mode failed\n");
 633}
 634
 635/* TouchPad support */
 636static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
 637{
 638	u32 result;
 639
 640	if (!sci_open(dev))
 641		return -EIO;
 642
 643	result = sci_write(dev, SCI_TOUCHPAD, state);
 644	sci_close(dev);
 645	if (result == TOS_FAILURE)
 646		pr_err("ACPI call to set the touchpad failed\n");
 647	else if (result == TOS_NOT_SUPPORTED)
 648		return -ENODEV;
 649
 650	return result == TOS_SUCCESS ? 0 : -EIO;
 651}
 652
 653static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
 654{
 655	u32 result;
 656
 657	if (!sci_open(dev))
 658		return -EIO;
 659
 660	result = sci_read(dev, SCI_TOUCHPAD, state);
 661	sci_close(dev);
 662	if (result == TOS_FAILURE)
 663		pr_err("ACPI call to query the touchpad failed\n");
 664	else if (result == TOS_NOT_SUPPORTED)
 665		return -ENODEV;
 666
 667	return result == TOS_SUCCESS ? 0 : -EIO;
 668}
 669
 670/* Eco Mode support */
 671static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
 672{
 673	u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
 674	u32 out[TCI_WORDS];
 675	acpi_status status;
 676
 677	dev->eco_supported = 0;
 
 678
 679	status = tci_raw(dev, in, out);
 680	if (ACPI_FAILURE(status)) {
 681		pr_err("ACPI call to get ECO led failed\n");
 682		return;
 683	}
 684
 685	if (out[0] == TOS_INPUT_DATA_ERROR || out[0] == TOS_NOT_SUPPORTED) {
 686		/*
 687		 * If we receive 0x8300 (Input Data Error), it means that the
 688		 * LED device is present, but that we just screwed the input
 689		 * parameters.
 690		 *
 691		 * On some laptops 0x8000 (Not supported) is also returned in
 692		 * this case, so we need to allow for that as well.
 693		 *
 694		 * Let's query the status of the LED to see if we really have a
 695		 * success response, indicating the actual presense of the LED,
 696		 * bail out otherwise.
 697		 */
 698		in[3] = 1;
 699		status = tci_raw(dev, in, out);
 700		if (ACPI_FAILURE(status)) {
 701			pr_err("ACPI call to get ECO led failed\n");
 702			return;
 703		}
 704
 705		if (out[0] != TOS_SUCCESS)
 706			return;
 707
 708		dev->eco_supported = 1;
 709	}
 710}
 711
 712static enum led_brightness
 713toshiba_eco_mode_get_status(struct led_classdev *cdev)
 714{
 715	struct toshiba_acpi_dev *dev = container_of(cdev,
 716			struct toshiba_acpi_dev, eco_led);
 717	u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
 718	u32 out[TCI_WORDS];
 719	acpi_status status;
 720
 721	status = tci_raw(dev, in, out);
 722	if (ACPI_FAILURE(status)) {
 723		pr_err("ACPI call to get ECO led failed\n");
 724		return LED_OFF;
 725	}
 726
 727	if (out[0] != TOS_SUCCESS)
 728		return LED_OFF;
 729
 730	return out[2] ? LED_FULL : LED_OFF;
 731}
 732
 733static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
 734				     enum led_brightness brightness)
 735{
 736	struct toshiba_acpi_dev *dev = container_of(cdev,
 737			struct toshiba_acpi_dev, eco_led);
 738	u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
 739	u32 out[TCI_WORDS];
 740	acpi_status status;
 741
 742	/* Switch the Eco Mode led on/off */
 743	in[2] = (brightness) ? 1 : 0;
 744	status = tci_raw(dev, in, out);
 745	if (ACPI_FAILURE(status))
 746		pr_err("ACPI call to set ECO led failed\n");
 747}
 748
 749/* Accelerometer support */
 750static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
 751{
 752	u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
 753	u32 out[TCI_WORDS];
 754	acpi_status status;
 755
 756	dev->accelerometer_supported = 0;
 757
 758	/*
 759	 * Check if the accelerometer call exists,
 760	 * this call also serves as initialization
 761	 */
 762	status = tci_raw(dev, in, out);
 763	if (ACPI_FAILURE(status)) {
 764		pr_err("ACPI call to query the accelerometer failed\n");
 765		return;
 766	}
 767
 768	if (out[0] != TOS_SUCCESS)
 769		return;
 770
 771	dev->accelerometer_supported = 1;
 772}
 773
 774static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
 775				     u32 *xy, u32 *z)
 776{
 777	u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
 778	u32 out[TCI_WORDS];
 779	acpi_status status;
 780
 781	/* Check the Accelerometer status */
 782	status = tci_raw(dev, in, out);
 783	if (ACPI_FAILURE(status)) {
 784		pr_err("ACPI call to query the accelerometer failed\n");
 785		return -EIO;
 786	}
 787
 788	if (out[0] == TOS_NOT_SUPPORTED)
 789		return -ENODEV;
 790
 791	if (out[0] != TOS_SUCCESS)
 792		return -EIO;
 793
 794	*xy = out[2];
 795	*z = out[4];
 796
 797	return 0;
 798}
 799
 800/* Sleep (Charge and Music) utilities support */
 801static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
 802{
 803	u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 804	u32 out[TCI_WORDS];
 805	acpi_status status;
 806
 807	dev->usb_sleep_charge_supported = 0;
 808
 809	if (!sci_open(dev))
 810		return;
 811
 812	status = tci_raw(dev, in, out);
 813	if (ACPI_FAILURE(status)) {
 814		pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
 815		sci_close(dev);
 816		return;
 817	}
 818
 819	if (out[0] != TOS_SUCCESS) {
 820		sci_close(dev);
 821		return;
 822	}
 823
 824	dev->usbsc_mode_base = out[4];
 825
 826	in[5] = SCI_USB_CHARGE_BAT_LVL;
 827	status = tci_raw(dev, in, out);
 828	sci_close(dev);
 829	if (ACPI_FAILURE(status)) {
 830		pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
 831		return;
 832	}
 833
 834	if (out[0] != TOS_SUCCESS)
 835		return;
 836
 837	dev->usbsc_bat_level = out[2];
 838	/* Flag as supported */
 839	dev->usb_sleep_charge_supported = 1;
 840}
 841
 842static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
 843					u32 *mode)
 844{
 845	u32 result;
 846
 847	if (!sci_open(dev))
 848		return -EIO;
 849
 850	result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
 851	sci_close(dev);
 852	if (result == TOS_FAILURE)
 853		pr_err("ACPI call to set USB S&C mode failed\n");
 854	else if (result == TOS_NOT_SUPPORTED)
 855		return -ENODEV;
 856
 857	return result == TOS_SUCCESS ? 0 : -EIO;
 858}
 859
 860static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
 861					u32 mode)
 862{
 863	u32 result;
 864
 865	if (!sci_open(dev))
 866		return -EIO;
 867
 868	result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
 869	sci_close(dev);
 870	if (result == TOS_FAILURE)
 871		pr_err("ACPI call to set USB S&C mode failed\n");
 872	else if (result == TOS_NOT_SUPPORTED)
 873		return -ENODEV;
 874
 875	return result == TOS_SUCCESS ? 0 : -EIO;
 876}
 877
 878static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
 879					      u32 *mode)
 880{
 881	u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 882	u32 out[TCI_WORDS];
 883	acpi_status status;
 884
 885	if (!sci_open(dev))
 886		return -EIO;
 887
 888	in[5] = SCI_USB_CHARGE_BAT_LVL;
 889	status = tci_raw(dev, in, out);
 890	sci_close(dev);
 891	if (ACPI_FAILURE(status)) {
 892		pr_err("ACPI call to get USB S&C battery level failed\n");
 893		return -EIO;
 894	}
 895
 896	if (out[0] == TOS_NOT_SUPPORTED)
 897		return -ENODEV;
 898
 899	if (out[0] != TOS_SUCCESS)
 900		return -EIO;
 901
 902	*mode = out[2];
 903
 904	return 0;
 905
 906}
 907
 908static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
 909					      u32 mode)
 910{
 911	u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 912	u32 out[TCI_WORDS];
 913	acpi_status status;
 914
 915	if (!sci_open(dev))
 916		return -EIO;
 917
 918	in[2] = mode;
 919	in[5] = SCI_USB_CHARGE_BAT_LVL;
 920	status = tci_raw(dev, in, out);
 921	sci_close(dev);
 922	if (ACPI_FAILURE(status)) {
 923		pr_err("ACPI call to set USB S&C battery level failed\n");
 924		return -EIO;
 925	}
 926
 927	if (out[0] == TOS_NOT_SUPPORTED)
 928		return -ENODEV;
 929
 930	return out[0] == TOS_SUCCESS ? 0 : -EIO;
 931}
 932
 933static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
 934					u32 *state)
 935{
 936	u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 937	u32 out[TCI_WORDS];
 938	acpi_status status;
 939
 940	if (!sci_open(dev))
 941		return -EIO;
 942
 943	in[5] = SCI_USB_CHARGE_RAPID_DSP;
 944	status = tci_raw(dev, in, out);
 945	sci_close(dev);
 946	if (ACPI_FAILURE(status)) {
 947		pr_err("ACPI call to get USB Rapid Charge failed\n");
 948		return -EIO;
 949	}
 950
 951	if (out[0] == TOS_NOT_SUPPORTED)
 952		return -ENODEV;
 953
 954	if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
 955		return -EIO;
 956
 957	*state = out[2];
 958
 959	return 0;
 960}
 961
 962static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
 963					u32 state)
 964{
 965	u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 966	u32 out[TCI_WORDS];
 967	acpi_status status;
 968
 969	if (!sci_open(dev))
 970		return -EIO;
 971
 972	in[2] = state;
 973	in[5] = SCI_USB_CHARGE_RAPID_DSP;
 974	status = tci_raw(dev, in, out);
 975	sci_close(dev);
 976	if (ACPI_FAILURE(status)) {
 977		pr_err("ACPI call to set USB Rapid Charge failed\n");
 978		return -EIO;
 979	}
 980
 981	if (out[0] == TOS_NOT_SUPPORTED)
 982		return -ENODEV;
 983
 984	return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
 985}
 986
 987static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
 988{
 989	u32 result;
 990
 991	if (!sci_open(dev))
 992		return -EIO;
 993
 994	result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
 995	sci_close(dev);
 996	if (result == TOS_FAILURE)
 997		pr_err("ACPI call to get Sleep and Music failed\n");
 998	else if (result == TOS_NOT_SUPPORTED)
 999		return -ENODEV;
1000
1001	return result == TOS_SUCCESS ? 0 : -EIO;
1002}
1003
1004static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1005{
1006	u32 result;
1007
1008	if (!sci_open(dev))
1009		return -EIO;
1010
1011	result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1012	sci_close(dev);
1013	if (result == TOS_FAILURE)
1014		pr_err("ACPI call to set Sleep and Music failed\n");
1015	else if (result == TOS_NOT_SUPPORTED)
1016		return -ENODEV;
1017
1018	return result == TOS_SUCCESS ? 0 : -EIO;
1019}
1020
1021/* Keyboard function keys */
1022static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1023{
1024	u32 result;
1025
1026	if (!sci_open(dev))
1027		return -EIO;
1028
1029	result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1030	sci_close(dev);
1031	if (result == TOS_FAILURE)
1032		pr_err("ACPI call to get KBD function keys failed\n");
1033	else if (result == TOS_NOT_SUPPORTED)
1034		return -ENODEV;
1035
1036	return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1037}
1038
1039static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1040{
1041	u32 result;
1042
1043	if (!sci_open(dev))
1044		return -EIO;
1045
1046	result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1047	sci_close(dev);
1048	if (result == TOS_FAILURE)
1049		pr_err("ACPI call to set KBD function keys failed\n");
1050	else if (result == TOS_NOT_SUPPORTED)
1051		return -ENODEV;
1052
1053	return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1054}
1055
1056/* Panel Power ON */
1057static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1058{
1059	u32 result;
1060
1061	if (!sci_open(dev))
1062		return -EIO;
1063
1064	result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1065	sci_close(dev);
1066	if (result == TOS_FAILURE)
1067		pr_err("ACPI call to get Panel Power ON failed\n");
1068	else if (result == TOS_NOT_SUPPORTED)
1069		return -ENODEV;
1070
1071	return result == TOS_SUCCESS ? 0 : -EIO;
1072}
1073
1074static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1075{
1076	u32 result;
1077
1078	if (!sci_open(dev))
1079		return -EIO;
1080
1081	result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1082	sci_close(dev);
1083	if (result == TOS_FAILURE)
1084		pr_err("ACPI call to set Panel Power ON failed\n");
1085	else if (result == TOS_NOT_SUPPORTED)
1086		return -ENODEV;
1087
1088	return result == TOS_SUCCESS ? 0 : -EIO;
1089}
1090
1091/* USB Three */
1092static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1093{
1094	u32 result;
1095
1096	if (!sci_open(dev))
1097		return -EIO;
1098
1099	result = sci_read(dev, SCI_USB_THREE, state);
1100	sci_close(dev);
1101	if (result == TOS_FAILURE)
1102		pr_err("ACPI call to get USB 3 failed\n");
1103	else if (result == TOS_NOT_SUPPORTED)
1104		return -ENODEV;
1105
1106	return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1107}
1108
1109static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1110{
1111	u32 result;
1112
1113	if (!sci_open(dev))
1114		return -EIO;
1115
1116	result = sci_write(dev, SCI_USB_THREE, state);
1117	sci_close(dev);
1118	if (result == TOS_FAILURE)
1119		pr_err("ACPI call to set USB 3 failed\n");
1120	else if (result == TOS_NOT_SUPPORTED)
1121		return -ENODEV;
1122
1123	return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1124}
1125
1126/* Hotkey Event type */
1127static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1128					 u32 *type)
1129{
1130	u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1131	u32 out[TCI_WORDS];
1132	acpi_status status;
1133
1134	status = tci_raw(dev, in, out);
1135	if (ACPI_FAILURE(status)) {
1136		pr_err("ACPI call to get System type failed\n");
1137		return -EIO;
1138	}
1139
1140	if (out[0] == TOS_NOT_SUPPORTED)
1141		return -ENODEV;
1142
1143	if (out[0] != TOS_SUCCESS)
1144		return -EIO;
1145
1146	*type = out[3];
1147
1148	return 0;
1149}
1150
1151/* Wireless status (RFKill, WLAN, BT, WWAN) */
1152static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1153{
1154	u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1155	u32 out[TCI_WORDS];
1156	acpi_status status;
1157
1158	in[3] = HCI_WIRELESS_STATUS;
1159	status = tci_raw(dev, in, out);
1160
1161	if (ACPI_FAILURE(status)) {
1162		pr_err("ACPI call to get Wireless status failed\n");
1163		return -EIO;
1164	}
1165
1166	if (out[0] == TOS_NOT_SUPPORTED)
1167		return -ENODEV;
1168
1169	if (out[0] != TOS_SUCCESS)
1170		return -EIO;
1171
1172	dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1173
1174	return 0;
1175}
1176
1177/* WWAN */
1178static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1179{
1180	u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1181	u32 out[TCI_WORDS];
1182	acpi_status status;
1183
1184	dev->wwan_supported = 0;
1185
1186	/*
1187	 * WWAN support can be queried by setting the in[3] value to
1188	 * HCI_WIRELESS_WWAN (0x03).
1189	 *
1190	 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1191	 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1192	 *
1193	 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1194	 * or TOS_NOT_SUPPORTED (0x8000).
1195	 */
1196	in[3] = HCI_WIRELESS_WWAN;
1197	status = tci_raw(dev, in, out);
1198	if (ACPI_FAILURE(status)) {
1199		pr_err("ACPI call to get WWAN status failed\n");
1200		return;
1201	}
1202
1203	if (out[0] != TOS_SUCCESS)
1204		return;
1205
1206	dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1207}
1208
1209static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1210{
1211	u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1212	u32 out[TCI_WORDS];
1213	acpi_status status;
1214
1215	in[3] = HCI_WIRELESS_WWAN_STATUS;
1216	status = tci_raw(dev, in, out);
1217	if (ACPI_FAILURE(status)) {
1218		pr_err("ACPI call to set WWAN status failed\n");
1219		return -EIO;
1220	}
1221
1222	if (out[0] == TOS_NOT_SUPPORTED)
1223		return -ENODEV;
1224
1225	if (out[0] != TOS_SUCCESS)
1226		return -EIO;
1227
1228	/*
1229	 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1230	 * (de)activate the device, but some others need the
1231	 * HCI_WIRELESS_WWAN_POWER call as well.
1232	 */
1233	in[3] = HCI_WIRELESS_WWAN_POWER;
1234	status = tci_raw(dev, in, out);
1235	if (ACPI_FAILURE(status)) {
1236		pr_err("ACPI call to set WWAN power failed\n");
1237		return -EIO;
1238	}
1239
1240	if (out[0] == TOS_NOT_SUPPORTED)
1241		return -ENODEV;
1242
1243	return out[0] == TOS_SUCCESS ? 0 : -EIO;
1244}
1245
1246/* Cooling Method */
1247static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1248{
1249	u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1250	u32 out[TCI_WORDS];
1251	acpi_status status;
1252
1253	dev->cooling_method_supported = 0;
1254	dev->max_cooling_method = 0;
1255
1256	status = tci_raw(dev, in, out);
1257	if (ACPI_FAILURE(status)) {
1258		pr_err("ACPI call to get Cooling Method failed\n");
1259		return;
1260	}
1261
1262	if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1263		return;
1264
1265	dev->cooling_method_supported = 1;
1266	dev->max_cooling_method = out[3];
1267}
1268
1269static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1270{
1271	u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1272
1273	if (result == TOS_FAILURE)
1274		pr_err("ACPI call to get Cooling Method failed\n");
1275
1276	if (result == TOS_NOT_SUPPORTED)
1277		return -ENODEV;
1278
1279	return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1280}
1281
1282static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1283{
1284	u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1285
1286	if (result == TOS_FAILURE)
1287		pr_err("ACPI call to set Cooling Method failed\n");
1288
1289	if (result == TOS_NOT_SUPPORTED)
1290		return -ENODEV;
1291
1292	return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1293}
1294
1295/* Battery charge control */
1296static void toshiba_battery_charge_mode_available(struct toshiba_acpi_dev *dev)
1297{
1298	u32 in[TCI_WORDS] = { HCI_GET, HCI_BATTERY_CHARGE_MODE, 0, 0, 0, 0 };
1299	u32 out[TCI_WORDS];
1300	acpi_status status;
1301
1302	dev->battery_charge_mode_supported = 0;
1303
1304	status = tci_raw(dev, in, out);
1305	if (ACPI_FAILURE(status)) {
1306		pr_err("ACPI call to get Battery Charge Mode failed\n");
1307		return;
1308	}
1309
1310	if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1311		return;
1312
1313	dev->battery_charge_mode_supported = 1;
1314}
1315
1316static int toshiba_battery_charge_mode_get(struct toshiba_acpi_dev *dev, u32 *state)
1317{
1318	u32 in[TCI_WORDS] = { HCI_GET, HCI_BATTERY_CHARGE_MODE, 0, 0, 0, 0x1 };
1319	u32 out[TCI_WORDS];
1320	int retries = 3;
1321
1322	do {
1323		acpi_status status = tci_raw(dev, in, out);
1324
1325		if (ACPI_FAILURE(status))
1326			pr_err("ACPI call to get Battery Charge Mode failed\n");
1327		switch (out[0]) {
1328		case TOS_SUCCESS:
1329		case TOS_SUCCESS2:
1330			*state = out[2];
1331			return 0;
1332		case TOS_NOT_SUPPORTED:
1333			return -ENODEV;
1334		case TOS_DATA_NOT_AVAILABLE:
1335			retries--;
1336			break;
1337		default:
1338			return -EIO;
1339		}
1340	} while (retries);
1341
1342	return -EIO;
1343}
1344
1345static int toshiba_battery_charge_mode_set(struct toshiba_acpi_dev *dev, u32 state)
1346{
1347	u32 result = hci_write(dev, HCI_BATTERY_CHARGE_MODE, state);
1348
1349	if (result == TOS_FAILURE)
1350		pr_err("ACPI call to set Battery Charge Mode failed\n");
1351
1352	if (result == TOS_NOT_SUPPORTED)
1353		return -ENODEV;
1354
1355	return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1356}
1357
1358/* Transflective Backlight */
1359static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1360{
1361	u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1362
1363	if (result == TOS_FAILURE)
1364		pr_err("ACPI call to get Transflective Backlight failed\n");
1365	else if (result == TOS_NOT_SUPPORTED)
1366		return -ENODEV;
1367
1368	return result == TOS_SUCCESS ? 0 : -EIO;
1369}
1370
1371static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1372{
1373	u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1374
1375	if (result == TOS_FAILURE)
1376		pr_err("ACPI call to set Transflective Backlight failed\n");
1377	else if (result == TOS_NOT_SUPPORTED)
1378		return -ENODEV;
1379
1380	return result == TOS_SUCCESS ? 0 : -EIO;
1381}
1382
1383static struct proc_dir_entry *toshiba_proc_dir;
1384
1385/* LCD Brightness */
1386static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1387{
1388	int brightness = 0;
1389	u32 result;
1390	u32 value;
1391
1392	if (dev->tr_backlight_supported) {
1393		int ret = get_tr_backlight_status(dev, &value);
1394
1395		if (ret)
1396			return ret;
1397		if (value)
1398			return 0;
1399		brightness++;
1400	}
1401
1402	result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1403	if (result == TOS_FAILURE)
1404		pr_err("ACPI call to get LCD Brightness failed\n");
1405	else if (result == TOS_NOT_SUPPORTED)
1406		return -ENODEV;
1407
1408	return result == TOS_SUCCESS ?
1409			brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1410			-EIO;
1411}
1412
1413static int get_lcd_brightness(struct backlight_device *bd)
1414{
1415	struct toshiba_acpi_dev *dev = bl_get_data(bd);
1416
1417	return __get_lcd_brightness(dev);
1418}
1419
1420static int lcd_proc_show(struct seq_file *m, void *v)
1421{
1422	struct toshiba_acpi_dev *dev = m->private;
1423	int levels;
1424	int value;
1425
1426	if (!dev->backlight_dev)
1427		return -ENODEV;
1428
1429	levels = dev->backlight_dev->props.max_brightness + 1;
1430	value = get_lcd_brightness(dev->backlight_dev);
1431	if (value < 0) {
1432		pr_err("Error reading LCD brightness\n");
1433		return value;
1434	}
1435
1436	seq_printf(m, "brightness:              %d\n", value);
1437	seq_printf(m, "brightness_levels:       %d\n", levels);
1438
1439	return 0;
1440}
1441
1442static int lcd_proc_open(struct inode *inode, struct file *file)
1443{
1444	return single_open(file, lcd_proc_show, pde_data(inode));
1445}
1446
1447static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1448{
1449	u32 result;
1450
1451	if (dev->tr_backlight_supported) {
1452		int ret = set_tr_backlight_status(dev, !value);
1453
1454		if (ret)
1455			return ret;
1456		if (value)
1457			value--;
1458	}
1459
1460	value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1461	result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1462	if (result == TOS_FAILURE)
1463		pr_err("ACPI call to set LCD Brightness failed\n");
1464	else if (result == TOS_NOT_SUPPORTED)
1465		return -ENODEV;
1466
1467	return result == TOS_SUCCESS ? 0 : -EIO;
1468}
1469
1470static int set_lcd_status(struct backlight_device *bd)
1471{
1472	struct toshiba_acpi_dev *dev = bl_get_data(bd);
1473
1474	return set_lcd_brightness(dev, bd->props.brightness);
1475}
1476
1477static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1478			      size_t count, loff_t *pos)
1479{
1480	struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1481	char cmd[42];
1482	size_t len;
1483	int levels;
1484	int value;
1485
1486	len = min(count, sizeof(cmd) - 1);
1487	if (copy_from_user(cmd, buf, len))
1488		return -EFAULT;
1489	cmd[len] = '\0';
1490
1491	levels = dev->backlight_dev->props.max_brightness + 1;
1492	if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1493	    value < 0 && value > levels)
1494		return -EINVAL;
1495
1496	if (set_lcd_brightness(dev, value))
1497		return -EIO;
1498
1499	return count;
1500}
1501
1502static const struct proc_ops lcd_proc_ops = {
1503	.proc_open	= lcd_proc_open,
1504	.proc_read	= seq_read,
1505	.proc_lseek	= seq_lseek,
1506	.proc_release	= single_release,
1507	.proc_write	= lcd_proc_write,
 
1508};
1509
1510/* Video-Out */
1511static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1512{
1513	u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1514
1515	if (result == TOS_FAILURE)
1516		pr_err("ACPI call to get Video-Out failed\n");
1517	else if (result == TOS_NOT_SUPPORTED)
1518		return -ENODEV;
1519
1520	return result == TOS_SUCCESS ? 0 : -EIO;
1521}
1522
1523static int video_proc_show(struct seq_file *m, void *v)
1524{
1525	struct toshiba_acpi_dev *dev = m->private;
1526	int is_lcd, is_crt, is_tv;
1527	u32 value;
1528
1529	if (get_video_status(dev, &value))
1530		return -EIO;
1531
1532	is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1533	is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1534	is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1535
1536	seq_printf(m, "lcd_out:                 %d\n", is_lcd);
1537	seq_printf(m, "crt_out:                 %d\n", is_crt);
1538	seq_printf(m, "tv_out:                  %d\n", is_tv);
1539
1540	return 0;
1541}
1542
1543static int video_proc_open(struct inode *inode, struct file *file)
1544{
1545	return single_open(file, video_proc_show, pde_data(inode));
1546}
1547
1548static ssize_t video_proc_write(struct file *file, const char __user *buf,
1549				size_t count, loff_t *pos)
1550{
1551	struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1552	char *buffer;
1553	char *cmd;
1554	int lcd_out = -1, crt_out = -1, tv_out = -1;
1555	int remain = count;
1556	int value;
1557	int ret;
1558	u32 video_out;
1559
1560	cmd = memdup_user_nul(buf, count);
1561	if (IS_ERR(cmd))
1562		return PTR_ERR(cmd);
1563
1564	buffer = cmd;
1565
1566	/*
1567	 * Scan expression.  Multiple expressions may be delimited with ;
1568	 * NOTE: To keep scanning simple, invalid fields are ignored.
1569	 */
1570	while (remain) {
1571		if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1572			lcd_out = value & 1;
1573		else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1574			crt_out = value & 1;
1575		else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1576			tv_out = value & 1;
1577		/* Advance to one character past the next ; */
1578		do {
1579			++buffer;
1580			--remain;
1581		} while (remain && *(buffer - 1) != ';');
1582	}
1583
1584	kfree(cmd);
1585
 
1586	ret = get_video_status(dev, &video_out);
1587	if (!ret) {
1588		unsigned int new_video_out = video_out;
1589
1590		if (lcd_out != -1)
1591			_set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1592		if (crt_out != -1)
1593			_set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1594		if (tv_out != -1)
1595			_set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1596		/*
1597		 * To avoid unnecessary video disruption, only write the new
1598		 * video setting if something changed.
1599		 */
1600		if (new_video_out != video_out)
1601			ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1602	}
1603
1604	return ret ? -EIO : count;
1605}
1606
1607static const struct proc_ops video_proc_ops = {
1608	.proc_open	= video_proc_open,
1609	.proc_read	= seq_read,
1610	.proc_lseek	= seq_lseek,
1611	.proc_release	= single_release,
1612	.proc_write	= video_proc_write,
 
1613};
1614
1615/* Fan status */
1616static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1617{
1618	u32 result = hci_read(dev, HCI_FAN, status);
1619
1620	if (result == TOS_FAILURE)
1621		pr_err("ACPI call to get Fan status failed\n");
1622	else if (result == TOS_NOT_SUPPORTED)
1623		return -ENODEV;
1624
1625	return result == TOS_SUCCESS ? 0 : -EIO;
1626}
1627
1628static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1629{
1630	u32 result = hci_write(dev, HCI_FAN, status);
1631
1632	if (result == TOS_FAILURE)
1633		pr_err("ACPI call to set Fan status failed\n");
1634	else if (result == TOS_NOT_SUPPORTED)
1635		return -ENODEV;
1636
1637	return result == TOS_SUCCESS ? 0 : -EIO;
1638}
1639
1640static int fan_proc_show(struct seq_file *m, void *v)
1641{
1642	struct toshiba_acpi_dev *dev = m->private;
1643	u32 value;
1644
1645	if (get_fan_status(dev, &value))
1646		return -EIO;
1647
1648	seq_printf(m, "running:                 %d\n", (value > 0));
1649	seq_printf(m, "force_on:                %d\n", dev->force_fan);
1650
1651	return 0;
1652}
1653
1654static int fan_proc_open(struct inode *inode, struct file *file)
1655{
1656	return single_open(file, fan_proc_show, pde_data(inode));
1657}
1658
1659static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1660			      size_t count, loff_t *pos)
1661{
1662	struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1663	char cmd[42];
1664	size_t len;
1665	int value;
1666
1667	len = min(count, sizeof(cmd) - 1);
1668	if (copy_from_user(cmd, buf, len))
1669		return -EFAULT;
1670	cmd[len] = '\0';
1671
1672	if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1673	    value != 0 && value != 1)
1674		return -EINVAL;
1675
1676	if (set_fan_status(dev, value))
1677		return -EIO;
1678
1679	dev->force_fan = value;
1680
1681	return count;
1682}
1683
1684static const struct proc_ops fan_proc_ops = {
1685	.proc_open	= fan_proc_open,
1686	.proc_read	= seq_read,
1687	.proc_lseek	= seq_lseek,
1688	.proc_release	= single_release,
1689	.proc_write	= fan_proc_write,
 
1690};
1691
1692/* Fan RPM */
1693static int get_fan_rpm(struct toshiba_acpi_dev *dev, u32 *rpm)
1694{
1695	u32 in[TCI_WORDS] = { HCI_GET, HCI_FAN_RPM, 0, 1, 0, 0 };
1696	u32 out[TCI_WORDS];
1697	acpi_status status = tci_raw(dev, in, out);
1698
1699	if (ACPI_FAILURE(status)) {
1700		pr_err("ACPI call to get Fan speed failed\n");
1701		return -EIO;
1702	}
1703
1704	if (out[0] == TOS_NOT_SUPPORTED)
1705		return -ENODEV;
1706
1707	if (out[0] == TOS_SUCCESS) {
1708		*rpm = out[2];
1709		return 0;
1710	}
1711
1712	return -EIO;
1713}
1714
1715static int keys_proc_show(struct seq_file *m, void *v)
1716{
1717	struct toshiba_acpi_dev *dev = m->private;
1718
1719	seq_printf(m, "hotkey_ready:            %d\n", dev->key_event_valid);
1720	seq_printf(m, "hotkey:                  0x%04x\n", dev->last_key_event);
1721
1722	return 0;
1723}
1724
1725static int keys_proc_open(struct inode *inode, struct file *file)
1726{
1727	return single_open(file, keys_proc_show, pde_data(inode));
1728}
1729
1730static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1731			       size_t count, loff_t *pos)
1732{
1733	struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1734	char cmd[42];
1735	size_t len;
1736	int value;
1737
1738	len = min(count, sizeof(cmd) - 1);
1739	if (copy_from_user(cmd, buf, len))
1740		return -EFAULT;
1741	cmd[len] = '\0';
1742
1743	if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1744		dev->key_event_valid = 0;
1745	else
1746		return -EINVAL;
1747
1748	return count;
1749}
1750
1751static const struct proc_ops keys_proc_ops = {
1752	.proc_open	= keys_proc_open,
1753	.proc_read	= seq_read,
1754	.proc_lseek	= seq_lseek,
1755	.proc_release	= single_release,
1756	.proc_write	= keys_proc_write,
 
1757};
1758
1759static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
1760{
1761	seq_printf(m, "driver:                  %s\n", TOSHIBA_ACPI_VERSION);
1762	seq_printf(m, "proc_interface:          %d\n", PROC_INTERFACE_VERSION);
1763	return 0;
1764}
1765
 
 
 
 
 
 
 
 
 
 
 
 
 
1766/*
1767 * Proc and module init
1768 */
1769
1770#define PROC_TOSHIBA		"toshiba"
1771
1772static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1773{
1774	if (dev->backlight_dev)
1775		proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1776				 &lcd_proc_ops, dev);
1777	if (dev->video_supported)
1778		proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1779				 &video_proc_ops, dev);
1780	if (dev->fan_supported)
1781		proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1782				 &fan_proc_ops, dev);
1783	if (dev->hotkey_dev)
1784		proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1785				 &keys_proc_ops, dev);
1786	proc_create_single_data("version", S_IRUGO, toshiba_proc_dir,
1787			version_proc_show, dev);
1788}
1789
1790static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1791{
1792	if (dev->backlight_dev)
1793		remove_proc_entry("lcd", toshiba_proc_dir);
1794	if (dev->video_supported)
1795		remove_proc_entry("video", toshiba_proc_dir);
1796	if (dev->fan_supported)
1797		remove_proc_entry("fan", toshiba_proc_dir);
1798	if (dev->hotkey_dev)
1799		remove_proc_entry("keys", toshiba_proc_dir);
1800	remove_proc_entry("version", toshiba_proc_dir);
1801}
1802
1803static const struct backlight_ops toshiba_backlight_data = {
1804	.options = BL_CORE_SUSPENDRESUME,
1805	.get_brightness = get_lcd_brightness,
1806	.update_status  = set_lcd_status,
1807};
1808
1809/* Keyboard backlight work */
1810static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1811
1812static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1813
1814/*
1815 * Sysfs files
1816 */
1817static ssize_t version_show(struct device *dev,
1818			    struct device_attribute *attr, char *buf)
1819{
1820	return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1821}
1822static DEVICE_ATTR_RO(version);
1823
1824static ssize_t fan_store(struct device *dev,
1825			 struct device_attribute *attr,
1826			 const char *buf, size_t count)
1827{
1828	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1829	int state;
1830	int ret;
1831
1832	ret = kstrtoint(buf, 0, &state);
1833	if (ret)
1834		return ret;
1835
1836	if (state != 0 && state != 1)
1837		return -EINVAL;
1838
1839	ret = set_fan_status(toshiba, state);
1840	if (ret)
1841		return ret;
1842
1843	return count;
1844}
1845
1846static ssize_t fan_show(struct device *dev,
1847			struct device_attribute *attr, char *buf)
1848{
1849	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1850	u32 value;
1851	int ret;
1852
1853	ret = get_fan_status(toshiba, &value);
1854	if (ret)
1855		return ret;
1856
1857	return sprintf(buf, "%d\n", value);
1858}
1859static DEVICE_ATTR_RW(fan);
1860
1861static ssize_t kbd_backlight_mode_store(struct device *dev,
1862					struct device_attribute *attr,
1863					const char *buf, size_t count)
1864{
1865	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1866	int mode;
1867	int ret;
1868
1869
1870	ret = kstrtoint(buf, 0, &mode);
1871	if (ret)
1872		return ret;
1873
1874	/* Check for supported modes depending on keyboard backlight type */
1875	if (toshiba->kbd_type == 1) {
1876		/* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1877		if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1878			return -EINVAL;
1879	} else if (toshiba->kbd_type == 2) {
1880		/* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1881		if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1882		    mode != SCI_KBD_MODE_OFF)
1883			return -EINVAL;
1884	}
1885
1886	/*
1887	 * Set the Keyboard Backlight Mode where:
1888	 *	Auto - KBD backlight turns off automatically in given time
1889	 *	FN-Z - KBD backlight "toggles" when hotkey pressed
1890	 *	ON   - KBD backlight is always on
1891	 *	OFF  - KBD backlight is always off
1892	 */
1893
1894	/* Only make a change if the actual mode has changed */
1895	if (toshiba->kbd_mode != mode) {
1896		/* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1897		int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1898
1899		/* OR the "base time" to the actual method format */
1900		if (toshiba->kbd_type == 1) {
1901			/* Type 1 requires the current mode */
1902			time |= toshiba->kbd_mode;
1903		} else if (toshiba->kbd_type == 2) {
1904			/* Type 2 requires the desired mode */
1905			time |= mode;
1906		}
1907
1908		ret = toshiba_kbd_illum_status_set(toshiba, time);
1909		if (ret)
1910			return ret;
1911
1912		toshiba->kbd_mode = mode;
1913		toshiba_acpi->kbd_mode = mode;
1914
1915		/*
1916		 * Some laptop models with the second generation backlit
1917		 * keyboard (type 2) do not generate the keyboard backlight
1918		 * changed event (0x92), and thus, the driver will never update
1919		 * the sysfs entries.
1920		 *
1921		 * The event is generated right when changing the keyboard
1922		 * backlight mode and the *notify function will set the
1923		 * kbd_event_generated to true.
1924		 *
1925		 * In case the event is not generated, schedule the keyboard
1926		 * backlight work to update the sysfs entries and emulate the
1927		 * event via genetlink.
1928		 */
1929		if (toshiba->kbd_type == 2 &&
1930		    !toshiba->kbd_event_generated)
1931			schedule_work(&kbd_bl_work);
1932	}
1933
1934	return count;
1935}
1936
1937static ssize_t kbd_backlight_mode_show(struct device *dev,
1938				       struct device_attribute *attr,
1939				       char *buf)
1940{
1941	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1942	u32 time;
1943
1944	if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1945		return -EIO;
1946
1947	return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1948}
1949static DEVICE_ATTR_RW(kbd_backlight_mode);
1950
1951static ssize_t kbd_type_show(struct device *dev,
1952			     struct device_attribute *attr, char *buf)
1953{
1954	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1955
1956	return sprintf(buf, "%d\n", toshiba->kbd_type);
1957}
1958static DEVICE_ATTR_RO(kbd_type);
1959
1960static ssize_t available_kbd_modes_show(struct device *dev,
1961					struct device_attribute *attr,
1962					char *buf)
1963{
1964	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1965
1966	if (toshiba->kbd_type == 1)
1967		return sprintf(buf, "0x%x 0x%x\n",
1968			       SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1969
1970	return sprintf(buf, "0x%x 0x%x 0x%x\n",
1971		       SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1972}
1973static DEVICE_ATTR_RO(available_kbd_modes);
1974
1975static ssize_t kbd_backlight_timeout_store(struct device *dev,
1976					   struct device_attribute *attr,
1977					   const char *buf, size_t count)
1978{
1979	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1980	int time;
1981	int ret;
1982
1983	ret = kstrtoint(buf, 0, &time);
1984	if (ret)
1985		return ret;
1986
1987	/* Check for supported values depending on kbd_type */
1988	if (toshiba->kbd_type == 1) {
1989		if (time < 0 || time > 60)
1990			return -EINVAL;
1991	} else if (toshiba->kbd_type == 2) {
1992		if (time < 1 || time > 60)
1993			return -EINVAL;
1994	}
1995
1996	/* Set the Keyboard Backlight Timeout */
1997
1998	/* Only make a change if the actual timeout has changed */
1999	if (toshiba->kbd_time != time) {
2000		/* Shift the time to "base time" (0x3c0000 == 60 seconds) */
2001		time = time << HCI_MISC_SHIFT;
2002		/* OR the "base time" to the actual method format */
2003		if (toshiba->kbd_type == 1)
2004			time |= SCI_KBD_MODE_FNZ;
2005		else if (toshiba->kbd_type == 2)
2006			time |= SCI_KBD_MODE_AUTO;
2007
2008		ret = toshiba_kbd_illum_status_set(toshiba, time);
2009		if (ret)
2010			return ret;
2011
2012		toshiba->kbd_time = time >> HCI_MISC_SHIFT;
2013	}
2014
2015	return count;
2016}
2017
2018static ssize_t kbd_backlight_timeout_show(struct device *dev,
2019					  struct device_attribute *attr,
2020					  char *buf)
2021{
2022	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2023	u32 time;
2024
2025	if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
2026		return -EIO;
2027
2028	return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
2029}
2030static DEVICE_ATTR_RW(kbd_backlight_timeout);
2031
2032static ssize_t touchpad_store(struct device *dev,
2033			      struct device_attribute *attr,
2034			      const char *buf, size_t count)
2035{
2036	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2037	int state;
2038	int ret;
2039
2040	/* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
2041	ret = kstrtoint(buf, 0, &state);
2042	if (ret)
2043		return ret;
2044	if (state != 0 && state != 1)
2045		return -EINVAL;
2046
2047	ret = toshiba_touchpad_set(toshiba, state);
2048	if (ret)
2049		return ret;
2050
2051	return count;
2052}
2053
2054static ssize_t touchpad_show(struct device *dev,
2055			     struct device_attribute *attr, char *buf)
2056{
2057	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2058	u32 state;
2059	int ret;
2060
2061	ret = toshiba_touchpad_get(toshiba, &state);
2062	if (ret < 0)
2063		return ret;
2064
2065	return sprintf(buf, "%i\n", state);
2066}
2067static DEVICE_ATTR_RW(touchpad);
2068
2069static ssize_t usb_sleep_charge_show(struct device *dev,
2070				     struct device_attribute *attr, char *buf)
2071{
2072	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2073	u32 mode;
2074	int ret;
2075
2076	ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
2077	if (ret < 0)
2078		return ret;
2079
2080	return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
2081}
2082
2083static ssize_t usb_sleep_charge_store(struct device *dev,
2084				      struct device_attribute *attr,
2085				      const char *buf, size_t count)
2086{
2087	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2088	int state;
2089	u32 mode;
2090	int ret;
2091
2092	ret = kstrtoint(buf, 0, &state);
2093	if (ret)
2094		return ret;
2095	/*
2096	 * Check for supported values, where:
2097	 * 0 - Disabled
2098	 * 1 - Alternate (Non USB conformant devices that require more power)
2099	 * 2 - Auto (USB conformant devices)
2100	 * 3 - Typical
2101	 */
2102	if (state != 0 && state != 1 && state != 2 && state != 3)
2103		return -EINVAL;
2104
2105	/* Set the USB charging mode to internal value */
2106	mode = toshiba->usbsc_mode_base;
2107	if (state == 0)
2108		mode |= SCI_USB_CHARGE_DISABLED;
2109	else if (state == 1)
2110		mode |= SCI_USB_CHARGE_ALTERNATE;
2111	else if (state == 2)
2112		mode |= SCI_USB_CHARGE_AUTO;
2113	else if (state == 3)
2114		mode |= SCI_USB_CHARGE_TYPICAL;
2115
2116	ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2117	if (ret)
2118		return ret;
2119
2120	return count;
2121}
2122static DEVICE_ATTR_RW(usb_sleep_charge);
2123
2124static ssize_t sleep_functions_on_battery_show(struct device *dev,
2125					       struct device_attribute *attr,
2126					       char *buf)
2127{
2128	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2129	int bat_lvl, status;
2130	u32 state;
2131	int ret;
2132	int tmp;
2133
2134	ret = toshiba_sleep_functions_status_get(toshiba, &state);
2135	if (ret < 0)
2136		return ret;
2137
2138	/* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2139	tmp = state & SCI_USB_CHARGE_BAT_MASK;
2140	status = (tmp == 0x4) ? 1 : 0;
2141	/* Determine the battery level set */
2142	bat_lvl = state >> HCI_MISC_SHIFT;
2143
2144	return sprintf(buf, "%d %d\n", status, bat_lvl);
2145}
2146
2147static ssize_t sleep_functions_on_battery_store(struct device *dev,
2148						struct device_attribute *attr,
2149						const char *buf, size_t count)
2150{
2151	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2152	u32 status;
2153	int value;
2154	int ret;
2155	int tmp;
2156
2157	ret = kstrtoint(buf, 0, &value);
2158	if (ret)
2159		return ret;
2160
2161	/*
2162	 * Set the status of the function:
2163	 * 0 - Disabled
2164	 * 1-100 - Enabled
2165	 */
2166	if (value < 0 || value > 100)
2167		return -EINVAL;
2168
2169	if (value == 0) {
2170		tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2171		status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2172	} else {
2173		tmp = value << HCI_MISC_SHIFT;
2174		status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2175	}
2176	ret = toshiba_sleep_functions_status_set(toshiba, status);
2177	if (ret < 0)
2178		return ret;
2179
2180	toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2181
2182	return count;
2183}
2184static DEVICE_ATTR_RW(sleep_functions_on_battery);
2185
2186static ssize_t usb_rapid_charge_show(struct device *dev,
2187				     struct device_attribute *attr, char *buf)
2188{
2189	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2190	u32 state;
2191	int ret;
2192
2193	ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2194	if (ret < 0)
2195		return ret;
2196
2197	return sprintf(buf, "%d\n", state);
2198}
2199
2200static ssize_t usb_rapid_charge_store(struct device *dev,
2201				      struct device_attribute *attr,
2202				      const char *buf, size_t count)
2203{
2204	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2205	int state;
2206	int ret;
2207
2208	ret = kstrtoint(buf, 0, &state);
2209	if (ret)
2210		return ret;
2211	if (state != 0 && state != 1)
2212		return -EINVAL;
2213
2214	ret = toshiba_usb_rapid_charge_set(toshiba, state);
2215	if (ret)
2216		return ret;
2217
2218	return count;
2219}
2220static DEVICE_ATTR_RW(usb_rapid_charge);
2221
2222static ssize_t usb_sleep_music_show(struct device *dev,
2223				    struct device_attribute *attr, char *buf)
2224{
2225	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2226	u32 state;
2227	int ret;
2228
2229	ret = toshiba_usb_sleep_music_get(toshiba, &state);
2230	if (ret < 0)
2231		return ret;
2232
2233	return sprintf(buf, "%d\n", state);
2234}
2235
2236static ssize_t usb_sleep_music_store(struct device *dev,
2237				     struct device_attribute *attr,
2238				     const char *buf, size_t count)
2239{
2240	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2241	int state;
2242	int ret;
2243
2244	ret = kstrtoint(buf, 0, &state);
2245	if (ret)
2246		return ret;
2247	if (state != 0 && state != 1)
2248		return -EINVAL;
2249
2250	ret = toshiba_usb_sleep_music_set(toshiba, state);
2251	if (ret)
2252		return ret;
2253
2254	return count;
2255}
2256static DEVICE_ATTR_RW(usb_sleep_music);
2257
2258static ssize_t kbd_function_keys_show(struct device *dev,
2259				      struct device_attribute *attr, char *buf)
2260{
2261	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2262	int mode;
2263	int ret;
2264
2265	ret = toshiba_function_keys_get(toshiba, &mode);
2266	if (ret < 0)
2267		return ret;
2268
2269	return sprintf(buf, "%d\n", mode);
2270}
2271
2272static ssize_t kbd_function_keys_store(struct device *dev,
2273				       struct device_attribute *attr,
2274				       const char *buf, size_t count)
2275{
2276	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2277	int mode;
2278	int ret;
2279
2280	ret = kstrtoint(buf, 0, &mode);
2281	if (ret)
2282		return ret;
2283	/*
2284	 * Check for the function keys mode where:
2285	 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2286	 * 1 - Special functions (Opposite of the above setting)
2287	 */
2288	if (mode != 0 && mode != 1)
2289		return -EINVAL;
2290
2291	ret = toshiba_function_keys_set(toshiba, mode);
2292	if (ret)
2293		return ret;
2294
2295	pr_info("Reboot for changes to KBD Function Keys to take effect");
2296
2297	return count;
2298}
2299static DEVICE_ATTR_RW(kbd_function_keys);
2300
2301static ssize_t panel_power_on_show(struct device *dev,
2302				   struct device_attribute *attr, char *buf)
2303{
2304	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2305	u32 state;
2306	int ret;
2307
2308	ret = toshiba_panel_power_on_get(toshiba, &state);
2309	if (ret < 0)
2310		return ret;
2311
2312	return sprintf(buf, "%d\n", state);
2313}
2314
2315static ssize_t panel_power_on_store(struct device *dev,
2316				    struct device_attribute *attr,
2317				    const char *buf, size_t count)
2318{
2319	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2320	int state;
2321	int ret;
2322
2323	ret = kstrtoint(buf, 0, &state);
2324	if (ret)
2325		return ret;
2326	if (state != 0 && state != 1)
2327		return -EINVAL;
2328
2329	ret = toshiba_panel_power_on_set(toshiba, state);
2330	if (ret)
2331		return ret;
2332
2333	pr_info("Reboot for changes to Panel Power ON to take effect");
2334
2335	return count;
2336}
2337static DEVICE_ATTR_RW(panel_power_on);
2338
2339static ssize_t usb_three_show(struct device *dev,
2340			      struct device_attribute *attr, char *buf)
2341{
2342	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2343	u32 state;
2344	int ret;
2345
2346	ret = toshiba_usb_three_get(toshiba, &state);
2347	if (ret < 0)
2348		return ret;
2349
2350	return sprintf(buf, "%d\n", state);
2351}
2352
2353static ssize_t usb_three_store(struct device *dev,
2354			       struct device_attribute *attr,
2355			       const char *buf, size_t count)
2356{
2357	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2358	int state;
2359	int ret;
2360
2361	ret = kstrtoint(buf, 0, &state);
2362	if (ret)
2363		return ret;
2364	/*
2365	 * Check for USB 3 mode where:
2366	 * 0 - Disabled (Acts like a USB 2 port, saving power)
2367	 * 1 - Enabled
2368	 */
2369	if (state != 0 && state != 1)
2370		return -EINVAL;
2371
2372	ret = toshiba_usb_three_set(toshiba, state);
2373	if (ret)
2374		return ret;
2375
2376	pr_info("Reboot for changes to USB 3 to take effect");
2377
2378	return count;
2379}
2380static DEVICE_ATTR_RW(usb_three);
2381
2382static ssize_t cooling_method_show(struct device *dev,
2383				   struct device_attribute *attr, char *buf)
2384{
2385	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2386	int state;
2387	int ret;
2388
2389	ret = toshiba_cooling_method_get(toshiba, &state);
2390	if (ret < 0)
2391		return ret;
2392
2393	return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2394}
2395
2396static ssize_t cooling_method_store(struct device *dev,
2397				    struct device_attribute *attr,
2398				    const char *buf, size_t count)
2399{
2400	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2401	int state;
2402	int ret;
2403
2404	ret = kstrtoint(buf, 0, &state);
2405	if (ret)
2406		return ret;
2407
2408	/*
2409	 * Check for supported values
2410	 * Depending on the laptop model, some only support these two:
2411	 * 0 - Maximum Performance
2412	 * 1 - Battery Optimized
2413	 *
2414	 * While some others support all three methods:
2415	 * 0 - Maximum Performance
2416	 * 1 - Performance
2417	 * 2 - Battery Optimized
2418	 */
2419	if (state < 0 || state > toshiba->max_cooling_method)
2420		return -EINVAL;
2421
2422	ret = toshiba_cooling_method_set(toshiba, state);
2423	if (ret)
2424		return ret;
2425
2426	return count;
2427}
2428static DEVICE_ATTR_RW(cooling_method);
2429
2430static struct attribute *toshiba_attributes[] = {
2431	&dev_attr_version.attr,
2432	&dev_attr_fan.attr,
2433	&dev_attr_kbd_backlight_mode.attr,
2434	&dev_attr_kbd_type.attr,
2435	&dev_attr_available_kbd_modes.attr,
2436	&dev_attr_kbd_backlight_timeout.attr,
2437	&dev_attr_touchpad.attr,
2438	&dev_attr_usb_sleep_charge.attr,
2439	&dev_attr_sleep_functions_on_battery.attr,
2440	&dev_attr_usb_rapid_charge.attr,
2441	&dev_attr_usb_sleep_music.attr,
2442	&dev_attr_kbd_function_keys.attr,
2443	&dev_attr_panel_power_on.attr,
2444	&dev_attr_usb_three.attr,
2445	&dev_attr_cooling_method.attr,
2446	NULL,
2447};
2448
2449static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2450					struct attribute *attr, int idx)
2451{
2452	struct device *dev = kobj_to_dev(kobj);
2453	struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2454	bool exists = true;
2455
2456	if (attr == &dev_attr_fan.attr)
2457		exists = (drv->fan_supported) ? true : false;
2458	else if (attr == &dev_attr_kbd_backlight_mode.attr)
2459		exists = (drv->kbd_illum_supported) ? true : false;
2460	else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2461		exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2462	else if (attr == &dev_attr_touchpad.attr)
2463		exists = (drv->touchpad_supported) ? true : false;
2464	else if (attr == &dev_attr_usb_sleep_charge.attr)
2465		exists = (drv->usb_sleep_charge_supported) ? true : false;
2466	else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2467		exists = (drv->usb_sleep_charge_supported) ? true : false;
2468	else if (attr == &dev_attr_usb_rapid_charge.attr)
2469		exists = (drv->usb_rapid_charge_supported) ? true : false;
2470	else if (attr == &dev_attr_usb_sleep_music.attr)
2471		exists = (drv->usb_sleep_music_supported) ? true : false;
2472	else if (attr == &dev_attr_kbd_function_keys.attr)
2473		exists = (drv->kbd_function_keys_supported) ? true : false;
2474	else if (attr == &dev_attr_panel_power_on.attr)
2475		exists = (drv->panel_power_on_supported) ? true : false;
2476	else if (attr == &dev_attr_usb_three.attr)
2477		exists = (drv->usb_three_supported) ? true : false;
2478	else if (attr == &dev_attr_cooling_method.attr)
2479		exists = (drv->cooling_method_supported) ? true : false;
2480
2481	return exists ? attr->mode : 0;
2482}
2483
2484static const struct attribute_group toshiba_attr_group = {
2485	.is_visible = toshiba_sysfs_is_visible,
2486	.attrs = toshiba_attributes,
2487};
2488
2489static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2490{
 
 
2491	/* Update the sysfs entries */
2492	if (sysfs_update_group(&toshiba_acpi->acpi_dev->dev.kobj,
2493			       &toshiba_attr_group))
2494		pr_err("Unable to update sysfs entries\n");
2495
2496	/* Notify LED subsystem about keyboard backlight change */
2497	if (toshiba_acpi->kbd_type == 2 &&
2498	    toshiba_acpi->kbd_mode != SCI_KBD_MODE_AUTO)
2499		led_classdev_notify_brightness_hw_changed(&toshiba_acpi->kbd_led,
2500				(toshiba_acpi->kbd_mode == SCI_KBD_MODE_ON) ?
2501				LED_FULL : LED_OFF);
2502
2503	/* Emulate the keyboard backlight event */
2504	acpi_bus_generate_netlink_event(toshiba_acpi->acpi_dev->pnp.device_class,
2505					dev_name(&toshiba_acpi->acpi_dev->dev),
2506					0x92, 0);
2507}
2508
2509/*
2510 * IIO device
2511 */
2512
2513enum toshiba_iio_accel_chan {
2514	AXIS_X,
2515	AXIS_Y,
2516	AXIS_Z
2517};
2518
2519static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2520{
2521	u32 xyval, zval;
2522	int ret;
2523
2524	ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2525	if (ret < 0)
2526		return ret;
2527
2528	switch (chan) {
2529	case AXIS_X:
2530		return xyval & HCI_ACCEL_DIRECTION_MASK ?
2531			-(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2532	case AXIS_Y:
2533		return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2534			-((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2535			(xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2536	case AXIS_Z:
2537		return zval & HCI_ACCEL_DIRECTION_MASK ?
2538			-(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2539	}
2540
2541	return ret;
2542}
2543
2544static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2545				      struct iio_chan_spec const *chan,
2546				      int *val, int *val2, long mask)
2547{
2548	int ret;
2549
2550	switch (mask) {
2551	case IIO_CHAN_INFO_RAW:
2552		ret = toshiba_iio_accel_get_axis(chan->channel);
2553		if (ret == -EIO || ret == -ENODEV)
2554			return ret;
2555
2556		*val = ret;
2557
2558		return IIO_VAL_INT;
2559	}
2560
2561	return -EINVAL;
2562}
2563
2564#define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2565	.type = IIO_ACCEL, \
2566	.modified = 1, \
2567	.channel = chan, \
2568	.channel2 = IIO_MOD_##axis, \
2569	.output = 1, \
2570	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2571}
2572
2573static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2574	TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2575	TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2576	TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2577};
2578
2579static const struct iio_info toshiba_iio_accel_info = {
2580	.read_raw = &toshiba_iio_accel_read_raw,
2581};
2582
2583/*
2584 * Misc device
2585 */
2586static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2587{
2588	u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2589			      regs->edx, regs->esi, regs->edi };
2590	u32 out[TCI_WORDS];
2591	acpi_status status;
2592
2593	status = tci_raw(toshiba_acpi, in, out);
2594	if (ACPI_FAILURE(status)) {
2595		pr_err("ACPI call to query SMM registers failed\n");
2596		return -EIO;
2597	}
2598
2599	/* Fillout the SMM struct with the TCI call results */
2600	regs->eax = out[0];
2601	regs->ebx = out[1];
2602	regs->ecx = out[2];
2603	regs->edx = out[3];
2604	regs->esi = out[4];
2605	regs->edi = out[5];
2606
2607	return 0;
2608}
2609
2610static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2611			       unsigned long arg)
2612{
2613	SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2614	SMMRegisters regs;
2615	int ret;
2616
2617	if (!argp)
2618		return -EINVAL;
2619
2620	switch (cmd) {
2621	case TOSH_SMM:
2622		if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2623			return -EFAULT;
2624		ret = toshiba_acpi_smm_bridge(&regs);
2625		if (ret)
2626			return ret;
2627		if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2628			return -EFAULT;
2629		break;
2630	case TOSHIBA_ACPI_SCI:
2631		if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2632			return -EFAULT;
2633		/* Ensure we are being called with a SCI_{GET, SET} register */
2634		if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2635			return -EINVAL;
2636		if (!sci_open(toshiba_acpi))
2637			return -EIO;
2638		ret = toshiba_acpi_smm_bridge(&regs);
2639		sci_close(toshiba_acpi);
2640		if (ret)
2641			return ret;
2642		if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2643			return -EFAULT;
2644		break;
2645	default:
2646		return -EINVAL;
2647	}
2648
2649	return 0;
2650}
2651
2652static const struct file_operations toshiba_acpi_fops = {
2653	.owner		= THIS_MODULE,
2654	.unlocked_ioctl = toshiba_acpi_ioctl,
2655	.llseek		= noop_llseek,
2656};
2657
2658/*
2659 * WWAN RFKill handlers
2660 */
2661static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2662{
2663	struct toshiba_acpi_dev *dev = data;
2664	int ret;
2665
2666	ret = toshiba_wireless_status(dev);
2667	if (ret)
2668		return ret;
2669
2670	if (!dev->killswitch)
2671		return 0;
2672
2673	return toshiba_wwan_set(dev, !blocked);
2674}
2675
2676static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2677{
2678	struct toshiba_acpi_dev *dev = data;
2679
2680	if (toshiba_wireless_status(dev))
2681		return;
2682
2683	rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2684}
2685
2686static const struct rfkill_ops wwan_rfk_ops = {
2687	.set_block = toshiba_acpi_wwan_set_block,
2688	.poll = toshiba_acpi_wwan_poll,
2689};
2690
2691static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2692{
2693	int ret = toshiba_wireless_status(dev);
2694
2695	if (ret)
2696		return ret;
2697
2698	dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2699				     &dev->acpi_dev->dev,
2700				     RFKILL_TYPE_WWAN,
2701				     &wwan_rfk_ops,
2702				     dev);
2703	if (!dev->wwan_rfk) {
2704		pr_err("Unable to allocate WWAN rfkill device\n");
2705		return -ENOMEM;
2706	}
2707
2708	rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2709
2710	ret = rfkill_register(dev->wwan_rfk);
2711	if (ret) {
2712		pr_err("Unable to register WWAN rfkill device\n");
2713		rfkill_destroy(dev->wwan_rfk);
2714	}
2715
2716	return ret;
2717}
2718
2719/*
2720 * Hotkeys
2721 */
2722static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2723{
2724	acpi_status status;
2725	u32 result;
2726
2727	status = acpi_evaluate_object(dev->acpi_dev->handle,
2728				      "ENAB", NULL, NULL);
2729	if (ACPI_FAILURE(status))
2730		return -ENODEV;
2731
2732	/*
2733	 * Enable the "Special Functions" mode only if they are
2734	 * supported and if they are activated.
2735	 */
2736	if (dev->kbd_function_keys_supported && dev->special_functions)
2737		result = hci_write(dev, HCI_HOTKEY_EVENT,
2738				   HCI_HOTKEY_SPECIAL_FUNCTIONS);
2739	else
2740		result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2741
2742	if (result == TOS_FAILURE)
2743		return -EIO;
2744	else if (result == TOS_NOT_SUPPORTED)
2745		return -ENODEV;
2746
2747	return 0;
2748}
2749
2750static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2751				      struct serio *port)
2752{
2753	if (str & I8042_STR_AUXDATA)
2754		return false;
2755
2756	if (unlikely(data == 0xe0))
2757		return false;
2758
2759	if ((data & 0x7f) == TOS1900_FN_SCAN) {
2760		schedule_work(&toshiba_acpi->hotkey_work);
2761		return true;
2762	}
2763
2764	return false;
2765}
2766
2767static void toshiba_acpi_hotkey_work(struct work_struct *work)
2768{
2769	acpi_handle ec_handle = ec_get_handle();
2770	acpi_status status;
2771
2772	if (!ec_handle)
2773		return;
2774
2775	status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2776	if (ACPI_FAILURE(status))
2777		pr_err("ACPI NTFY method execution failed\n");
2778}
2779
2780/*
2781 * Returns hotkey scancode, or < 0 on failure.
2782 */
2783static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2784{
2785	unsigned long long value;
2786	acpi_status status;
2787
2788	status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2789				      NULL, &value);
2790	if (ACPI_FAILURE(status)) {
2791		pr_err("ACPI INFO method execution failed\n");
2792		return -EIO;
2793	}
2794
2795	return value;
2796}
2797
2798static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2799				       int scancode)
2800{
2801	if (scancode == 0x100)
2802		return;
2803
2804	/* Act on key press; ignore key release */
2805	if (scancode & 0x80)
2806		return;
2807
2808	if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2809		pr_info("Unknown key %x\n", scancode);
2810}
2811
2812static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2813{
2814	if (dev->info_supported) {
2815		int scancode = toshiba_acpi_query_hotkey(dev);
2816
2817		if (scancode < 0) {
2818			pr_err("Failed to query hotkey event\n");
2819		} else if (scancode != 0) {
2820			toshiba_acpi_report_hotkey(dev, scancode);
2821			dev->key_event_valid = 1;
2822			dev->last_key_event = scancode;
2823		}
2824	} else if (dev->system_event_supported) {
2825		u32 result;
2826		u32 value;
2827		int retries = 3;
2828
2829		do {
2830			result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2831			switch (result) {
2832			case TOS_SUCCESS:
2833				toshiba_acpi_report_hotkey(dev, (int)value);
2834				dev->key_event_valid = 1;
2835				dev->last_key_event = value;
2836				break;
2837			case TOS_NOT_SUPPORTED:
2838				/*
2839				 * This is a workaround for an unresolved
2840				 * issue on some machines where system events
2841				 * sporadically become disabled.
2842				 */
2843				result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2844				if (result == TOS_SUCCESS)
2845					pr_notice("Re-enabled hotkeys\n");
2846				fallthrough;
2847			default:
2848				retries--;
2849				break;
2850			}
2851		} while (retries && result != TOS_FIFO_EMPTY);
2852	}
2853}
2854
2855static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2856{
2857	const struct key_entry *keymap = toshiba_acpi_keymap;
2858	acpi_handle ec_handle;
2859	int error;
2860
2861	if (disable_hotkeys) {
2862		pr_info("Hotkeys disabled by module parameter\n");
2863		return 0;
2864	}
2865
2866	if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2867		pr_info("WMI event detected, hotkeys will not be monitored\n");
2868		return 0;
2869	}
2870
2871	error = toshiba_acpi_enable_hotkeys(dev);
2872	if (error)
2873		return error;
2874
2875	if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2876		pr_notice("Unable to query Hotkey Event Type\n");
2877
2878	dev->hotkey_dev = input_allocate_device();
2879	if (!dev->hotkey_dev)
2880		return -ENOMEM;
2881
2882	dev->hotkey_dev->name = "Toshiba input device";
2883	dev->hotkey_dev->phys = "toshiba_acpi/input0";
2884	dev->hotkey_dev->id.bustype = BUS_HOST;
2885	dev->hotkey_dev->dev.parent = &dev->acpi_dev->dev;
2886
2887	if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2888	    !dev->kbd_function_keys_supported)
2889		keymap = toshiba_acpi_keymap;
2890	else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2891		 dev->kbd_function_keys_supported)
2892		keymap = toshiba_acpi_alt_keymap;
2893	else
2894		pr_info("Unknown event type received %x\n",
2895			dev->hotkey_event_type);
2896	error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2897	if (error)
2898		goto err_free_dev;
2899
2900	/*
2901	 * For some machines the SCI responsible for providing hotkey
2902	 * notification doesn't fire. We can trigger the notification
2903	 * whenever the Fn key is pressed using the NTFY method, if
2904	 * supported, so if it's present set up an i8042 key filter
2905	 * for this purpose.
2906	 */
2907	ec_handle = ec_get_handle();
2908	if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2909		INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2910
2911		error = i8042_install_filter(toshiba_acpi_i8042_filter);
2912		if (error) {
2913			pr_err("Error installing key filter\n");
2914			goto err_free_dev;
2915		}
2916
2917		dev->ntfy_supported = 1;
2918	}
2919
2920	/*
2921	 * Determine hotkey query interface. Prefer using the INFO
2922	 * method when it is available.
2923	 */
2924	if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2925		dev->info_supported = 1;
2926	else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2927		dev->system_event_supported = 1;
2928
2929	if (!dev->info_supported && !dev->system_event_supported) {
2930		pr_warn("No hotkey query interface found\n");
2931		error = -EINVAL;
2932		goto err_remove_filter;
2933	}
2934
2935	error = input_register_device(dev->hotkey_dev);
2936	if (error) {
2937		pr_info("Unable to register input device\n");
2938		goto err_remove_filter;
2939	}
2940
2941	return 0;
2942
2943 err_remove_filter:
2944	if (dev->ntfy_supported)
2945		i8042_remove_filter(toshiba_acpi_i8042_filter);
2946 err_free_dev:
2947	input_free_device(dev->hotkey_dev);
2948	dev->hotkey_dev = NULL;
2949	return error;
2950}
2951
2952static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2953{
2954	struct backlight_properties props;
2955	int brightness;
2956	int ret;
2957
2958	/*
2959	 * Some machines don't support the backlight methods at all, and
2960	 * others support it read-only. Either of these is pretty useless,
2961	 * so only register the backlight device if the backlight method
2962	 * supports both reads and writes.
2963	 */
2964	brightness = __get_lcd_brightness(dev);
2965	if (brightness < 0)
2966		return 0;
2967	/*
2968	 * If transflective backlight is supported and the brightness is zero
2969	 * (lowest brightness level), the set_lcd_brightness function will
2970	 * activate the transflective backlight, making the LCD appear to be
2971	 * turned off, simply increment the brightness level to avoid that.
2972	 */
2973	if (dev->tr_backlight_supported && brightness == 0)
2974		brightness++;
2975	ret = set_lcd_brightness(dev, brightness);
2976	if (ret) {
2977		pr_debug("Backlight method is read-only, disabling backlight support\n");
2978		return 0;
2979	}
2980
 
 
 
 
 
 
 
 
2981	if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2982		return 0;
2983
2984	memset(&props, 0, sizeof(props));
2985	props.type = BACKLIGHT_PLATFORM;
2986	props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2987
2988	/* Adding an extra level and having 0 change to transflective mode */
2989	if (dev->tr_backlight_supported)
2990		props.max_brightness++;
2991
2992	dev->backlight_dev = backlight_device_register("toshiba",
2993						       &dev->acpi_dev->dev,
2994						       dev,
2995						       &toshiba_backlight_data,
2996						       &props);
2997	if (IS_ERR(dev->backlight_dev)) {
2998		ret = PTR_ERR(dev->backlight_dev);
2999		pr_err("Could not register toshiba backlight device\n");
3000		dev->backlight_dev = NULL;
3001		return ret;
3002	}
3003
3004	dev->backlight_dev->props.brightness = brightness;
3005	return 0;
3006}
3007
3008/* HWMON support for fan */
3009#if IS_ENABLED(CONFIG_HWMON)
3010static umode_t toshiba_acpi_hwmon_is_visible(const void *drvdata,
3011					     enum hwmon_sensor_types type,
3012					     u32 attr, int channel)
3013{
3014	return 0444;
3015}
3016
3017static int toshiba_acpi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
3018				   u32 attr, int channel, long *val)
3019{
3020	/*
3021	 * There is only a single channel and single attribute (for the
3022	 * fan) at this point.
3023	 * This can be replaced with more advanced logic in the future,
3024	 * should the need arise.
3025	 */
3026	if (type == hwmon_fan && channel == 0 && attr == hwmon_fan_input) {
3027		u32 value;
3028		int ret;
3029
3030		ret = get_fan_rpm(toshiba_acpi, &value);
3031		if (ret)
3032			return ret;
3033
3034		*val = value;
3035		return 0;
3036	}
3037	return -EOPNOTSUPP;
3038}
3039
3040static const struct hwmon_channel_info *toshiba_acpi_hwmon_info[] = {
3041	HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT),
3042	NULL
3043};
3044
3045static const struct hwmon_ops toshiba_acpi_hwmon_ops = {
3046	.is_visible = toshiba_acpi_hwmon_is_visible,
3047	.read = toshiba_acpi_hwmon_read,
3048};
3049
3050static const struct hwmon_chip_info toshiba_acpi_hwmon_chip_info = {
3051	.ops = &toshiba_acpi_hwmon_ops,
3052	.info = toshiba_acpi_hwmon_info,
3053};
3054#endif
3055
3056/* ACPI battery hooking */
3057static ssize_t charge_control_end_threshold_show(struct device *device,
3058						 struct device_attribute *attr,
3059						 char *buf)
3060{
3061	u32 state;
3062	int status;
3063
3064	if (toshiba_acpi == NULL) {
3065		pr_err("Toshiba ACPI object invalid\n");
3066		return -ENODEV;
3067	}
3068
3069	status = toshiba_battery_charge_mode_get(toshiba_acpi, &state);
3070
3071	if (status != 0)
3072		return status;
3073
3074	if (state == 1)
3075		return sprintf(buf, "80\n");
3076	else
3077		return sprintf(buf, "100\n");
3078}
3079
3080static ssize_t charge_control_end_threshold_store(struct device *dev,
3081						  struct device_attribute *attr,
3082						  const char *buf,
3083						  size_t count)
3084{
3085	u32 value;
3086	int rval;
3087
3088	if (toshiba_acpi == NULL) {
3089		pr_err("Toshiba ACPI object invalid\n");
3090		return -ENODEV;
3091	}
3092
3093	rval = kstrtou32(buf, 10, &value);
3094	if (rval)
3095		return rval;
3096
3097	if (value < 1 || value > 100)
3098		return -EINVAL;
3099	rval = toshiba_battery_charge_mode_set(toshiba_acpi,
3100					       (value < 90) ? 1 : 0);
3101	if (rval < 0)
3102		return rval;
3103	else
3104		return count;
3105}
3106
3107static DEVICE_ATTR_RW(charge_control_end_threshold);
3108
3109static struct attribute *toshiba_acpi_battery_attrs[] = {
3110	&dev_attr_charge_control_end_threshold.attr,
3111	NULL,
3112};
3113
3114ATTRIBUTE_GROUPS(toshiba_acpi_battery);
3115
3116static int toshiba_acpi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
3117{
3118	if (toshiba_acpi == NULL) {
3119		pr_err("Init order issue\n");
3120		return -ENODEV;
3121	}
3122	if (!toshiba_acpi->battery_charge_mode_supported)
3123		return -ENODEV;
3124	if (device_add_groups(&battery->dev, toshiba_acpi_battery_groups))
3125		return -ENODEV;
3126	return 0;
3127}
3128
3129static int toshiba_acpi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
3130{
3131	device_remove_groups(&battery->dev, toshiba_acpi_battery_groups);
3132	return 0;
3133}
3134
3135static struct acpi_battery_hook battery_hook = {
3136	.add_battery = toshiba_acpi_battery_add,
3137	.remove_battery = toshiba_acpi_battery_remove,
3138	.name = "Toshiba Battery Extension",
3139};
3140
3141static void print_supported_features(struct toshiba_acpi_dev *dev)
3142{
3143	pr_info("Supported laptop features:");
3144
3145	if (dev->hotkey_dev)
3146		pr_cont(" hotkeys");
3147	if (dev->backlight_dev)
3148		pr_cont(" backlight");
3149	if (dev->video_supported)
3150		pr_cont(" video-out");
3151	if (dev->fan_supported)
3152		pr_cont(" fan");
3153	if (dev->fan_rpm_supported)
3154		pr_cont(" fan-rpm");
3155	if (dev->tr_backlight_supported)
3156		pr_cont(" transflective-backlight");
3157	if (dev->illumination_supported)
3158		pr_cont(" illumination");
3159	if (dev->kbd_illum_supported)
3160		pr_cont(" keyboard-backlight");
3161	if (dev->touchpad_supported)
3162		pr_cont(" touchpad");
3163	if (dev->eco_supported)
3164		pr_cont(" eco-led");
3165	if (dev->accelerometer_supported)
3166		pr_cont(" accelerometer-axes");
3167	if (dev->usb_sleep_charge_supported)
3168		pr_cont(" usb-sleep-charge");
3169	if (dev->usb_rapid_charge_supported)
3170		pr_cont(" usb-rapid-charge");
3171	if (dev->usb_sleep_music_supported)
3172		pr_cont(" usb-sleep-music");
3173	if (dev->kbd_function_keys_supported)
3174		pr_cont(" special-function-keys");
3175	if (dev->panel_power_on_supported)
3176		pr_cont(" panel-power-on");
3177	if (dev->usb_three_supported)
3178		pr_cont(" usb3");
3179	if (dev->wwan_supported)
3180		pr_cont(" wwan");
3181	if (dev->cooling_method_supported)
3182		pr_cont(" cooling-method");
3183	if (dev->battery_charge_mode_supported)
3184		pr_cont(" battery-charge-mode");
3185
3186	pr_cont("\n");
3187}
3188
3189static void toshiba_acpi_remove(struct acpi_device *acpi_dev)
3190{
3191	struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3192
3193	misc_deregister(&dev->miscdev);
3194
3195	remove_toshiba_proc_entries(dev);
3196
3197#if IS_ENABLED(CONFIG_HWMON)
3198	if (dev->hwmon_device)
3199		hwmon_device_unregister(dev->hwmon_device);
3200#endif
3201
3202	if (dev->accelerometer_supported && dev->indio_dev) {
3203		iio_device_unregister(dev->indio_dev);
3204		iio_device_free(dev->indio_dev);
3205	}
3206
3207	if (dev->sysfs_created)
3208		sysfs_remove_group(&dev->acpi_dev->dev.kobj,
3209				   &toshiba_attr_group);
3210
3211	if (dev->ntfy_supported) {
3212		i8042_remove_filter(toshiba_acpi_i8042_filter);
3213		cancel_work_sync(&dev->hotkey_work);
3214	}
3215
3216	if (dev->hotkey_dev)
3217		input_unregister_device(dev->hotkey_dev);
3218
3219	backlight_device_unregister(dev->backlight_dev);
3220
3221	led_classdev_unregister(&dev->led_dev);
3222	led_classdev_unregister(&dev->kbd_led);
3223	led_classdev_unregister(&dev->eco_led);
 
 
 
 
 
3224
3225	if (dev->wwan_rfk) {
3226		rfkill_unregister(dev->wwan_rfk);
3227		rfkill_destroy(dev->wwan_rfk);
3228	}
3229
3230	if (dev->battery_charge_mode_supported)
3231		battery_hook_unregister(&battery_hook);
3232
3233	if (toshiba_acpi)
3234		toshiba_acpi = NULL;
3235
3236	kfree(dev);
 
 
3237}
3238
3239static const char *find_hci_method(acpi_handle handle)
3240{
3241	if (acpi_has_method(handle, "GHCI"))
3242		return "GHCI";
3243
3244	if (acpi_has_method(handle, "SPFC"))
3245		return "SPFC";
3246
3247	return NULL;
3248}
3249
3250/*
3251 * Some Toshibas have a broken acpi-video interface for brightness control,
3252 * these are quirked in drivers/acpi/video_detect.c to use the GPU native
3253 * (/sys/class/backlight/intel_backlight) instead.
3254 * But these need a HCI_SET call to actually turn the panel back on at resume,
3255 * without this call the screen stays black at resume.
3256 * Either HCI_LCD_BRIGHTNESS (used by acpi_video's _BCM) or HCI_PANEL_POWER_ON
3257 * works. toshiba_acpi_resume() uses HCI_PANEL_POWER_ON to avoid changing
3258 * the configured brightness level.
3259 */
3260static const struct dmi_system_id turn_on_panel_on_resume_dmi_ids[] = {
3261	{
3262	 /* Toshiba Portégé R700 */
3263	 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
3264	 .matches = {
3265		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3266		DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"),
3267		},
3268	},
3269	{
3270	 /* Toshiba Satellite/Portégé R830 */
3271	 /* Portégé: https://bugs.freedesktop.org/show_bug.cgi?id=82634 */
3272	 /* Satellite: https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
3273	 .matches = {
3274		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3275		DMI_MATCH(DMI_PRODUCT_NAME, "R830"),
3276		},
3277	},
3278	{
3279	 /* Toshiba Satellite/Portégé Z830 */
3280	 .matches = {
3281		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3282		DMI_MATCH(DMI_PRODUCT_NAME, "Z830"),
3283		},
3284	},
3285};
3286
3287static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3288{
3289	struct toshiba_acpi_dev *dev;
3290	const char *hci_method;
3291	u32 dummy;
3292	int ret = 0;
3293
3294	if (toshiba_acpi)
3295		return -EBUSY;
3296
3297	pr_info("Toshiba Laptop ACPI Extras version %s\n",
3298	       TOSHIBA_ACPI_VERSION);
3299
3300	hci_method = find_hci_method(acpi_dev->handle);
3301	if (!hci_method) {
3302		pr_err("HCI interface not found\n");
3303		return -ENODEV;
3304	}
3305
3306	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3307	if (!dev)
3308		return -ENOMEM;
3309	dev->acpi_dev = acpi_dev;
3310	dev->method_hci = hci_method;
3311	dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3312	dev->miscdev.name = "toshiba_acpi";
3313	dev->miscdev.fops = &toshiba_acpi_fops;
3314
3315	ret = misc_register(&dev->miscdev);
3316	if (ret) {
3317		pr_err("Failed to register miscdevice\n");
3318		kfree(dev);
3319		return ret;
3320	}
3321
3322	acpi_dev->driver_data = dev;
3323	dev_set_drvdata(&acpi_dev->dev, dev);
3324
3325	/* Query the BIOS for supported features */
3326
3327	/*
3328	 * The "Special Functions" are always supported by the laptops
3329	 * with the new keyboard layout, query for its presence to help
3330	 * determine the keymap layout to use.
3331	 */
3332	ret = toshiba_function_keys_get(dev, &dev->special_functions);
3333	dev->kbd_function_keys_supported = !ret;
3334
3335	dev->hotkey_event_type = 0;
3336	if (toshiba_acpi_setup_keyboard(dev))
3337		pr_info("Unable to activate hotkeys\n");
3338
3339	/* Determine whether or not BIOS supports transflective backlight */
3340	ret = get_tr_backlight_status(dev, &dummy);
3341	dev->tr_backlight_supported = !ret;
3342
3343	ret = toshiba_acpi_setup_backlight(dev);
3344	if (ret)
3345		goto error;
3346
3347	toshiba_illumination_available(dev);
3348	if (dev->illumination_supported) {
3349		dev->led_dev.name = "toshiba::illumination";
3350		dev->led_dev.max_brightness = 1;
3351		dev->led_dev.brightness_set = toshiba_illumination_set;
3352		dev->led_dev.brightness_get = toshiba_illumination_get;
3353		led_classdev_register(&acpi_dev->dev, &dev->led_dev);
 
3354	}
3355
3356	toshiba_eco_mode_available(dev);
3357	if (dev->eco_supported) {
3358		dev->eco_led.name = "toshiba::eco_mode";
3359		dev->eco_led.max_brightness = 1;
3360		dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3361		dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3362		led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led);
 
3363	}
3364
3365	toshiba_kbd_illum_available(dev);
3366	/*
3367	 * Only register the LED if KBD illumination is supported
3368	 * and the keyboard backlight operation mode is set to FN-Z
3369	 * or we detect a second gen keyboard backlight
3370	 */
3371	if (dev->kbd_illum_supported &&
3372	    (dev->kbd_mode == SCI_KBD_MODE_FNZ || dev->kbd_type == 2)) {
3373		dev->kbd_led.name = "toshiba::kbd_backlight";
3374		dev->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
3375		dev->kbd_led.max_brightness = 1;
3376		dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3377		dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3378		led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led);
 
3379	}
3380
3381	ret = toshiba_touchpad_get(dev, &dummy);
3382	dev->touchpad_supported = !ret;
3383
3384	toshiba_accelerometer_available(dev);
3385	if (dev->accelerometer_supported) {
3386		dev->indio_dev = iio_device_alloc(&acpi_dev->dev, sizeof(*dev));
3387		if (!dev->indio_dev) {
3388			pr_err("Unable to allocate iio device\n");
3389			goto iio_error;
3390		}
3391
3392		pr_info("Registering Toshiba accelerometer iio device\n");
3393
3394		dev->indio_dev->info = &toshiba_iio_accel_info;
3395		dev->indio_dev->name = "Toshiba accelerometer";
 
3396		dev->indio_dev->modes = INDIO_DIRECT_MODE;
3397		dev->indio_dev->channels = toshiba_iio_accel_channels;
3398		dev->indio_dev->num_channels =
3399					ARRAY_SIZE(toshiba_iio_accel_channels);
3400
3401		ret = iio_device_register(dev->indio_dev);
3402		if (ret < 0) {
3403			pr_err("Unable to register iio device\n");
3404			iio_device_free(dev->indio_dev);
3405		}
3406	}
3407iio_error:
3408
3409	toshiba_usb_sleep_charge_available(dev);
3410
3411	ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3412	dev->usb_rapid_charge_supported = !ret;
3413
3414	ret = toshiba_usb_sleep_music_get(dev, &dummy);
3415	dev->usb_sleep_music_supported = !ret;
3416
3417	ret = toshiba_panel_power_on_get(dev, &dummy);
3418	dev->panel_power_on_supported = !ret;
3419
3420	ret = toshiba_usb_three_get(dev, &dummy);
3421	dev->usb_three_supported = !ret;
3422
3423	ret = get_video_status(dev, &dummy);
3424	dev->video_supported = !ret;
3425
3426	ret = get_fan_status(dev, &dummy);
3427	dev->fan_supported = !ret;
3428
3429	ret = get_fan_rpm(dev, &dummy);
3430	dev->fan_rpm_supported = !ret;
3431
3432#if IS_ENABLED(CONFIG_HWMON)
3433	if (dev->fan_rpm_supported) {
3434		dev->hwmon_device = hwmon_device_register_with_info(
3435			&dev->acpi_dev->dev, "toshiba_acpi_sensors", NULL,
3436			&toshiba_acpi_hwmon_chip_info, NULL);
3437		if (IS_ERR(dev->hwmon_device)) {
3438			dev->hwmon_device = NULL;
3439			pr_warn("unable to register hwmon device, skipping\n");
3440		}
3441	}
3442#endif
3443
3444	if (turn_on_panel_on_resume == -1)
3445		turn_on_panel_on_resume = dmi_check_system(turn_on_panel_on_resume_dmi_ids);
3446
3447	toshiba_wwan_available(dev);
3448	if (dev->wwan_supported)
3449		toshiba_acpi_setup_wwan_rfkill(dev);
3450
3451	toshiba_cooling_method_available(dev);
3452
3453	toshiba_battery_charge_mode_available(dev);
3454
3455	print_supported_features(dev);
3456
3457	ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3458				 &toshiba_attr_group);
3459	if (ret) {
3460		dev->sysfs_created = 0;
3461		goto error;
3462	}
3463	dev->sysfs_created = !ret;
3464
3465	create_toshiba_proc_entries(dev);
3466
3467	toshiba_acpi = dev;
3468
3469	/*
3470	 * As the battery hook relies on the static variable toshiba_acpi being
3471	 * set, this must be done after toshiba_acpi is assigned.
3472	 */
3473	if (dev->battery_charge_mode_supported)
3474		battery_hook_register(&battery_hook);
3475
3476	return 0;
3477
3478error:
3479	toshiba_acpi_remove(acpi_dev);
3480	return ret;
3481}
3482
3483static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3484{
3485	struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3486
3487	switch (event) {
3488	case 0x80: /* Hotkeys and some system events */
3489		/*
3490		 * Machines with this WMI GUID aren't supported due to bugs in
3491		 * their AML.
3492		 *
3493		 * Return silently to avoid triggering a netlink event.
3494		 */
3495		if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3496			return;
3497		toshiba_acpi_process_hotkeys(dev);
3498		break;
3499	case 0x81: /* Dock events */
3500	case 0x82:
3501	case 0x83:
3502		pr_info("Dock event received %x\n", event);
3503		break;
3504	case 0x88: /* Thermal events */
3505		pr_info("Thermal event received\n");
3506		break;
3507	case 0x8f: /* LID closed */
3508	case 0x90: /* LID is closed and Dock has been ejected */
3509		break;
3510	case 0x8c: /* SATA power events */
3511	case 0x8b:
3512		pr_info("SATA power event received %x\n", event);
3513		break;
3514	case 0x92: /* Keyboard backlight mode changed */
3515		dev->kbd_event_generated = true;
3516		/* Update sysfs entries */
3517		if (sysfs_update_group(&acpi_dev->dev.kobj,
3518				       &toshiba_attr_group))
3519			pr_err("Unable to update sysfs entries\n");
3520		/* Notify LED subsystem about keyboard backlight change */
3521		if (dev->kbd_type == 2 && dev->kbd_mode != SCI_KBD_MODE_AUTO)
3522			led_classdev_notify_brightness_hw_changed(&dev->kbd_led,
3523					(dev->kbd_mode == SCI_KBD_MODE_ON) ?
3524					LED_FULL : LED_OFF);
3525		break;
3526	case 0x85: /* Unknown */
3527	case 0x8d: /* Unknown */
3528	case 0x8e: /* Unknown */
3529	case 0x94: /* Unknown */
3530	case 0x95: /* Unknown */
3531	default:
3532		pr_info("Unknown event received %x\n", event);
3533		break;
3534	}
3535
3536	acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3537					dev_name(&acpi_dev->dev),
3538					event, (event == 0x80) ?
3539					dev->last_key_event : 0);
3540}
3541
3542#ifdef CONFIG_PM_SLEEP
3543static int toshiba_acpi_suspend(struct device *device)
3544{
3545	struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3546
3547	if (dev->hotkey_dev) {
3548		u32 result;
3549
3550		result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3551		if (result != TOS_SUCCESS)
3552			pr_info("Unable to disable hotkeys\n");
3553	}
3554
3555	return 0;
3556}
3557
3558static int toshiba_acpi_resume(struct device *device)
3559{
3560	struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3561
3562	if (dev->hotkey_dev) {
3563		if (toshiba_acpi_enable_hotkeys(dev))
3564			pr_info("Unable to re-enable hotkeys\n");
3565	}
3566
3567	if (dev->wwan_rfk) {
3568		if (!toshiba_wireless_status(dev))
3569			rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3570	}
3571
3572	if (turn_on_panel_on_resume)
3573		hci_write(dev, HCI_PANEL_POWER_ON, 1);
3574
3575	return 0;
3576}
3577#endif
3578
3579static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3580			 toshiba_acpi_suspend, toshiba_acpi_resume);
3581
3582static struct acpi_driver toshiba_acpi_driver = {
3583	.name	= "Toshiba ACPI driver",
3584	.owner	= THIS_MODULE,
3585	.ids	= toshiba_device_ids,
3586	.flags	= ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3587	.ops	= {
3588		.add		= toshiba_acpi_add,
3589		.remove		= toshiba_acpi_remove,
3590		.notify		= toshiba_acpi_notify,
3591	},
3592	.drv.pm	= &toshiba_acpi_pm,
3593};
3594
3595static int __init toshiba_acpi_init(void)
3596{
3597	int ret;
3598
3599	toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3600	if (!toshiba_proc_dir) {
3601		pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3602		return -ENODEV;
3603	}
3604
3605	ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3606	if (ret) {
3607		pr_err("Failed to register ACPI driver: %d\n", ret);
3608		remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3609	}
3610
3611	return ret;
3612}
3613
3614static void __exit toshiba_acpi_exit(void)
3615{
3616	acpi_bus_unregister_driver(&toshiba_acpi_driver);
3617	if (toshiba_proc_dir)
3618		remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3619}
3620
3621module_init(toshiba_acpi_init);
3622module_exit(toshiba_acpi_exit);
v4.17
 
   1/*
   2 *  toshiba_acpi.c - Toshiba Laptop ACPI Extras
   3 *
   4 *  Copyright (C) 2002-2004 John Belmonte
   5 *  Copyright (C) 2008 Philip Langdale
   6 *  Copyright (C) 2010 Pierre Ducroquet
   7 *  Copyright (C) 2014-2016 Azael Avalos
   8 *
   9 *  This program is free software; you can redistribute it and/or modify
  10 *  it under the terms of the GNU General Public License as published by
  11 *  the Free Software Foundation; either version 2 of the License, or
  12 *  (at your option) any later version.
  13 *
  14 *  This program is distributed in the hope that it will be useful,
  15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 *  GNU General Public License for more details.
  18 *
  19 *  The full GNU General Public License is included in this distribution in
  20 *  the file called "COPYING".
  21 *
  22 *  The devolpment page for this driver is located at
  23 *  http://memebeam.org/toys/ToshibaAcpiDriver.
  24 *
  25 *  Credits:
  26 *	Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
  27 *		engineering the Windows drivers
  28 *	Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
  29 *	Rob Miller - TV out and hotkeys help
  30 */
  31
  32#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  33
  34#define TOSHIBA_ACPI_VERSION	"0.24"
  35#define PROC_INTERFACE_VERSION	1
  36
 
 
  37#include <linux/kernel.h>
  38#include <linux/module.h>
  39#include <linux/moduleparam.h>
  40#include <linux/init.h>
  41#include <linux/types.h>
  42#include <linux/proc_fs.h>
  43#include <linux/seq_file.h>
  44#include <linux/backlight.h>
  45#include <linux/input.h>
  46#include <linux/input/sparse-keymap.h>
  47#include <linux/leds.h>
  48#include <linux/slab.h>
  49#include <linux/workqueue.h>
  50#include <linux/i8042.h>
  51#include <linux/acpi.h>
  52#include <linux/dmi.h>
  53#include <linux/uaccess.h>
  54#include <linux/miscdevice.h>
  55#include <linux/rfkill.h>
 
  56#include <linux/iio/iio.h>
  57#include <linux/toshiba.h>
 
  58#include <acpi/video.h>
  59
  60MODULE_AUTHOR("John Belmonte");
  61MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
  62MODULE_LICENSE("GPL");
  63
 
 
 
 
 
  64#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
  65
  66/* Scan code for Fn key on TOS1900 models */
  67#define TOS1900_FN_SCAN		0x6e
  68
  69/* Toshiba ACPI method paths */
  70#define METHOD_VIDEO_OUT	"\\_SB_.VALX.DSSX"
  71
  72/*
  73 * The Toshiba configuration interface is composed of the HCI and the SCI,
  74 * which are defined as follows:
  75 *
  76 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
  77 * be uniform across all their models.  Ideally we would just call
  78 * dedicated ACPI methods instead of using this primitive interface.
  79 * However the ACPI methods seem to be incomplete in some areas (for
  80 * example they allow setting, but not reading, the LCD brightness value),
  81 * so this is still useful.
  82 *
  83 * SCI stands for "System Configuration Interface" which aim is to
  84 * conceal differences in hardware between different models.
  85 */
  86
  87#define TCI_WORDS			6
  88
  89/* Operations */
  90#define HCI_SET				0xff00
  91#define HCI_GET				0xfe00
  92#define SCI_OPEN			0xf100
  93#define SCI_CLOSE			0xf200
  94#define SCI_GET				0xf300
  95#define SCI_SET				0xf400
  96
  97/* Return codes */
  98#define TOS_SUCCESS			0x0000
  99#define TOS_SUCCESS2			0x0001
 100#define TOS_OPEN_CLOSE_OK		0x0044
 101#define TOS_FAILURE			0x1000
 102#define TOS_NOT_SUPPORTED		0x8000
 103#define TOS_ALREADY_OPEN		0x8100
 104#define TOS_NOT_OPENED			0x8200
 105#define TOS_INPUT_DATA_ERROR		0x8300
 106#define TOS_WRITE_PROTECTED		0x8400
 107#define TOS_NOT_PRESENT			0x8600
 108#define TOS_FIFO_EMPTY			0x8c00
 109#define TOS_DATA_NOT_AVAILABLE		0x8d20
 110#define TOS_NOT_INITIALIZED		0x8d50
 111#define TOS_NOT_INSTALLED		0x8e00
 112
 113/* Registers */
 
 114#define HCI_FAN				0x0004
 115#define HCI_TR_BACKLIGHT		0x0005
 116#define HCI_SYSTEM_EVENT		0x0016
 117#define HCI_VIDEO_OUT			0x001c
 118#define HCI_HOTKEY_EVENT		0x001e
 119#define HCI_LCD_BRIGHTNESS		0x002a
 
 120#define HCI_WIRELESS			0x0056
 121#define HCI_ACCELEROMETER		0x006d
 122#define HCI_COOLING_METHOD		0x007f
 123#define HCI_KBD_ILLUMINATION		0x0095
 124#define HCI_ECO_MODE			0x0097
 125#define HCI_ACCELEROMETER2		0x00a6
 
 126#define HCI_SYSTEM_INFO			0xc000
 127#define SCI_PANEL_POWER_ON		0x010d
 128#define SCI_ILLUMINATION		0x014e
 129#define SCI_USB_SLEEP_CHARGE		0x0150
 130#define SCI_KBD_ILLUM_STATUS		0x015c
 131#define SCI_USB_SLEEP_MUSIC		0x015e
 132#define SCI_USB_THREE			0x0169
 133#define SCI_TOUCHPAD			0x050e
 134#define SCI_KBD_FUNCTION_KEYS		0x0522
 135
 136/* Field definitions */
 137#define HCI_ACCEL_MASK			0x7fff
 138#define HCI_ACCEL_DIRECTION_MASK	0x8000
 139#define HCI_HOTKEY_DISABLE		0x0b
 140#define HCI_HOTKEY_ENABLE		0x09
 141#define HCI_HOTKEY_SPECIAL_FUNCTIONS	0x10
 142#define HCI_LCD_BRIGHTNESS_BITS		3
 143#define HCI_LCD_BRIGHTNESS_SHIFT	(16-HCI_LCD_BRIGHTNESS_BITS)
 144#define HCI_LCD_BRIGHTNESS_LEVELS	(1 << HCI_LCD_BRIGHTNESS_BITS)
 145#define HCI_MISC_SHIFT			0x10
 146#define HCI_SYSTEM_TYPE1		0x10
 147#define HCI_SYSTEM_TYPE2		0x11
 148#define HCI_VIDEO_OUT_LCD		0x1
 149#define HCI_VIDEO_OUT_CRT		0x2
 150#define HCI_VIDEO_OUT_TV		0x4
 151#define SCI_KBD_MODE_MASK		0x1f
 152#define SCI_KBD_MODE_FNZ		0x1
 153#define SCI_KBD_MODE_AUTO		0x2
 154#define SCI_KBD_MODE_ON			0x8
 155#define SCI_KBD_MODE_OFF		0x10
 156#define SCI_KBD_TIME_MAX		0x3c001a
 157#define HCI_WIRELESS_STATUS		0x1
 158#define HCI_WIRELESS_WWAN		0x3
 159#define HCI_WIRELESS_WWAN_STATUS	0x2000
 160#define HCI_WIRELESS_WWAN_POWER		0x4000
 161#define SCI_USB_CHARGE_MODE_MASK	0xff
 162#define SCI_USB_CHARGE_DISABLED		0x00
 163#define SCI_USB_CHARGE_ALTERNATE	0x09
 164#define SCI_USB_CHARGE_TYPICAL		0x11
 165#define SCI_USB_CHARGE_AUTO		0x21
 166#define SCI_USB_CHARGE_BAT_MASK		0x7
 167#define SCI_USB_CHARGE_BAT_LVL_OFF	0x1
 168#define SCI_USB_CHARGE_BAT_LVL_ON	0x4
 169#define SCI_USB_CHARGE_BAT_LVL		0x0200
 170#define SCI_USB_CHARGE_RAPID_DSP	0x0300
 171
 172struct toshiba_acpi_dev {
 173	struct acpi_device *acpi_dev;
 174	const char *method_hci;
 175	struct input_dev *hotkey_dev;
 176	struct work_struct hotkey_work;
 177	struct backlight_device *backlight_dev;
 178	struct led_classdev led_dev;
 179	struct led_classdev kbd_led;
 180	struct led_classdev eco_led;
 181	struct miscdevice miscdev;
 182	struct rfkill *wwan_rfk;
 183	struct iio_dev *indio_dev;
 
 
 
 184
 185	int force_fan;
 186	int last_key_event;
 187	int key_event_valid;
 188	int kbd_type;
 189	int kbd_mode;
 190	int kbd_time;
 191	int usbsc_bat_level;
 192	int usbsc_mode_base;
 193	int hotkey_event_type;
 194	int max_cooling_method;
 195
 196	unsigned int illumination_supported:1;
 197	unsigned int video_supported:1;
 198	unsigned int fan_supported:1;
 
 199	unsigned int system_event_supported:1;
 200	unsigned int ntfy_supported:1;
 201	unsigned int info_supported:1;
 202	unsigned int tr_backlight_supported:1;
 203	unsigned int kbd_illum_supported:1;
 204	unsigned int touchpad_supported:1;
 205	unsigned int eco_supported:1;
 206	unsigned int accelerometer_supported:1;
 207	unsigned int usb_sleep_charge_supported:1;
 208	unsigned int usb_rapid_charge_supported:1;
 209	unsigned int usb_sleep_music_supported:1;
 210	unsigned int kbd_function_keys_supported:1;
 211	unsigned int panel_power_on_supported:1;
 212	unsigned int usb_three_supported:1;
 213	unsigned int wwan_supported:1;
 214	unsigned int cooling_method_supported:1;
 
 215	unsigned int sysfs_created:1;
 216	unsigned int special_functions;
 217
 218	bool kbd_event_generated;
 219	bool kbd_led_registered;
 220	bool illumination_led_registered;
 221	bool eco_led_registered;
 222	bool killswitch;
 223};
 224
 225static struct toshiba_acpi_dev *toshiba_acpi;
 226
 227static bool disable_hotkeys;
 228module_param(disable_hotkeys, bool, 0444);
 229MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
 230
 231static const struct acpi_device_id toshiba_device_ids[] = {
 232	{"TOS6200", 0},
 233	{"TOS6207", 0},
 234	{"TOS6208", 0},
 235	{"TOS1900", 0},
 236	{"", 0},
 237};
 238MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
 239
 240static const struct key_entry toshiba_acpi_keymap[] = {
 241	{ KE_KEY, 0x9e, { KEY_RFKILL } },
 242	{ KE_KEY, 0x101, { KEY_MUTE } },
 243	{ KE_KEY, 0x102, { KEY_ZOOMOUT } },
 244	{ KE_KEY, 0x103, { KEY_ZOOMIN } },
 245	{ KE_KEY, 0x10f, { KEY_TAB } },
 246	{ KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
 247	{ KE_KEY, 0x139, { KEY_ZOOMRESET } },
 248	{ KE_KEY, 0x13b, { KEY_COFFEE } },
 249	{ KE_KEY, 0x13c, { KEY_BATTERY } },
 250	{ KE_KEY, 0x13d, { KEY_SLEEP } },
 251	{ KE_KEY, 0x13e, { KEY_SUSPEND } },
 252	{ KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
 253	{ KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
 254	{ KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
 255	{ KE_KEY, 0x142, { KEY_WLAN } },
 256	{ KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
 257	{ KE_KEY, 0x17f, { KEY_FN } },
 258	{ KE_KEY, 0xb05, { KEY_PROG2 } },
 259	{ KE_KEY, 0xb06, { KEY_WWW } },
 260	{ KE_KEY, 0xb07, { KEY_MAIL } },
 261	{ KE_KEY, 0xb30, { KEY_STOP } },
 262	{ KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
 263	{ KE_KEY, 0xb32, { KEY_NEXTSONG } },
 264	{ KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
 265	{ KE_KEY, 0xb5a, { KEY_MEDIA } },
 266	{ KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
 267	{ KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
 268	{ KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
 269	{ KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
 270	{ KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
 271	{ KE_END, 0 },
 272};
 273
 274static const struct key_entry toshiba_acpi_alt_keymap[] = {
 275	{ KE_KEY, 0x102, { KEY_ZOOMOUT } },
 276	{ KE_KEY, 0x103, { KEY_ZOOMIN } },
 277	{ KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
 278	{ KE_KEY, 0x139, { KEY_ZOOMRESET } },
 279	{ KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
 280	{ KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
 281	{ KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
 282	{ KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
 283	{ KE_KEY, 0x157, { KEY_MUTE } },
 284	{ KE_KEY, 0x158, { KEY_WLAN } },
 285	{ KE_END, 0 },
 286};
 287
 288/*
 289 * List of models which have a broken acpi-video backlight interface and thus
 290 * need to use the toshiba (vendor) interface instead.
 291 */
 292static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
 293	{}
 294};
 295
 296/*
 297 * Utility
 298 */
 299
 300static inline void _set_bit(u32 *word, u32 mask, int value)
 301{
 302	*word = (*word & ~mask) | (mask * value);
 303}
 304
 305/*
 306 * ACPI interface wrappers
 307 */
 308
 309static int write_acpi_int(const char *methodName, int val)
 310{
 311	acpi_status status;
 312
 313	status = acpi_execute_simple_method(NULL, (char *)methodName, val);
 314	return (status == AE_OK) ? 0 : -EIO;
 315}
 316
 317/*
 318 * Perform a raw configuration call.  Here we don't care about input or output
 319 * buffer format.
 320 */
 321static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
 322			   const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
 323{
 324	union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
 325	struct acpi_object_list params;
 326	struct acpi_buffer results;
 327	acpi_status status;
 328	int i;
 329
 330	params.count = TCI_WORDS;
 331	params.pointer = in_objs;
 332	for (i = 0; i < TCI_WORDS; ++i) {
 333		in_objs[i].type = ACPI_TYPE_INTEGER;
 334		in_objs[i].integer.value = in[i];
 335	}
 336
 337	results.length = sizeof(out_objs);
 338	results.pointer = out_objs;
 339
 340	status = acpi_evaluate_object(dev->acpi_dev->handle,
 341				      (char *)dev->method_hci, &params,
 342				      &results);
 343	if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
 344		for (i = 0; i < out_objs->package.count; ++i)
 345			out[i] = out_objs->package.elements[i].integer.value;
 346	}
 347
 348	return status;
 349}
 350
 351/*
 352 * Common hci tasks
 353 *
 354 * In addition to the ACPI status, the HCI system returns a result which
 355 * may be useful (such as "not supported").
 356 */
 357
 358static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
 359{
 360	u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
 361	u32 out[TCI_WORDS];
 362	acpi_status status = tci_raw(dev, in, out);
 363
 364	return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
 365}
 366
 367static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
 368{
 369	u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
 370	u32 out[TCI_WORDS];
 371	acpi_status status = tci_raw(dev, in, out);
 372
 373	if (ACPI_FAILURE(status))
 374		return TOS_FAILURE;
 375
 376	*out1 = out[2];
 377
 378	return out[0];
 379}
 380
 381/*
 382 * Common sci tasks
 383 */
 384
 385static int sci_open(struct toshiba_acpi_dev *dev)
 386{
 387	u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
 388	u32 out[TCI_WORDS];
 389	acpi_status status = tci_raw(dev, in, out);
 390
 391	if  (ACPI_FAILURE(status)) {
 392		pr_err("ACPI call to open SCI failed\n");
 393		return 0;
 394	}
 395
 396	if (out[0] == TOS_OPEN_CLOSE_OK) {
 397		return 1;
 398	} else if (out[0] == TOS_ALREADY_OPEN) {
 399		pr_info("Toshiba SCI already opened\n");
 400		return 1;
 401	} else if (out[0] == TOS_NOT_SUPPORTED) {
 402		/*
 403		 * Some BIOSes do not have the SCI open/close functions
 404		 * implemented and return 0x8000 (Not Supported), failing to
 405		 * register some supported features.
 406		 *
 407		 * Simply return 1 if we hit those affected laptops to make the
 408		 * supported features work.
 409		 *
 410		 * In the case that some laptops really do not support the SCI,
 411		 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
 412		 * and thus, not registering support for the queried feature.
 413		 */
 414		return 1;
 415	} else if (out[0] == TOS_NOT_PRESENT) {
 416		pr_info("Toshiba SCI is not present\n");
 417	}
 418
 419	return 0;
 420}
 421
 422static void sci_close(struct toshiba_acpi_dev *dev)
 423{
 424	u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
 425	u32 out[TCI_WORDS];
 426	acpi_status status = tci_raw(dev, in, out);
 427
 428	if (ACPI_FAILURE(status)) {
 429		pr_err("ACPI call to close SCI failed\n");
 430		return;
 431	}
 432
 433	if (out[0] == TOS_OPEN_CLOSE_OK)
 434		return;
 435	else if (out[0] == TOS_NOT_OPENED)
 436		pr_info("Toshiba SCI not opened\n");
 437	else if (out[0] == TOS_NOT_PRESENT)
 438		pr_info("Toshiba SCI is not present\n");
 439}
 440
 441static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
 442{
 443	u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
 444	u32 out[TCI_WORDS];
 445	acpi_status status = tci_raw(dev, in, out);
 446
 447	if (ACPI_FAILURE(status))
 448		return TOS_FAILURE;
 449
 450	*out1 = out[2];
 451
 452	return out[0];
 453}
 454
 455static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
 456{
 457	u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
 458	u32 out[TCI_WORDS];
 459	acpi_status status = tci_raw(dev, in, out);
 460
 461	return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
 462}
 463
 464/* Illumination support */
 465static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
 466{
 467	u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
 468	u32 out[TCI_WORDS];
 469	acpi_status status;
 470
 471	dev->illumination_supported = 0;
 472	dev->illumination_led_registered = false;
 473
 474	if (!sci_open(dev))
 475		return;
 476
 477	status = tci_raw(dev, in, out);
 478	sci_close(dev);
 479	if (ACPI_FAILURE(status)) {
 480		pr_err("ACPI call to query Illumination support failed\n");
 481		return;
 482	}
 483
 484	if (out[0] != TOS_SUCCESS)
 485		return;
 486
 487	dev->illumination_supported = 1;
 488}
 489
 490static void toshiba_illumination_set(struct led_classdev *cdev,
 491				     enum led_brightness brightness)
 492{
 493	struct toshiba_acpi_dev *dev = container_of(cdev,
 494			struct toshiba_acpi_dev, led_dev);
 495	u32 result;
 496	u32 state;
 497
 498	/* First request : initialize communication. */
 499	if (!sci_open(dev))
 500		return;
 501
 502	/* Switch the illumination on/off */
 503	state = brightness ? 1 : 0;
 504	result = sci_write(dev, SCI_ILLUMINATION, state);
 505	sci_close(dev);
 506	if (result == TOS_FAILURE)
 507		pr_err("ACPI call for illumination failed\n");
 508}
 509
 510static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
 511{
 512	struct toshiba_acpi_dev *dev = container_of(cdev,
 513			struct toshiba_acpi_dev, led_dev);
 514	u32 result;
 515	u32 state;
 516
 517	/* First request : initialize communication. */
 518	if (!sci_open(dev))
 519		return LED_OFF;
 520
 521	/* Check the illumination */
 522	result = sci_read(dev, SCI_ILLUMINATION, &state);
 523	sci_close(dev);
 524	if (result == TOS_FAILURE) {
 525		pr_err("ACPI call for illumination failed\n");
 526		return LED_OFF;
 527	} else if (result != TOS_SUCCESS) {
 528		return LED_OFF;
 529	}
 530
 531	return state ? LED_FULL : LED_OFF;
 532}
 533
 534/* KBD Illumination */
 535static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
 536{
 537	u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
 538	u32 out[TCI_WORDS];
 539	acpi_status status;
 540
 541	dev->kbd_illum_supported = 0;
 542	dev->kbd_led_registered = false;
 543	dev->kbd_event_generated = false;
 544
 545	if (!sci_open(dev))
 546		return;
 547
 548	status = tci_raw(dev, in, out);
 549	sci_close(dev);
 550	if (ACPI_FAILURE(status)) {
 551		pr_err("ACPI call to query kbd illumination support failed\n");
 552		return;
 553	}
 554
 555	if (out[0] != TOS_SUCCESS)
 556		return;
 557
 558	/*
 559	 * Check for keyboard backlight timeout max value,
 560	 * previous kbd backlight implementation set this to
 561	 * 0x3c0003, and now the new implementation set this
 562	 * to 0x3c001a, use this to distinguish between them.
 563	 */
 564	if (out[3] == SCI_KBD_TIME_MAX)
 565		dev->kbd_type = 2;
 566	else
 567		dev->kbd_type = 1;
 568	/* Get the current keyboard backlight mode */
 569	dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
 570	/* Get the current time (1-60 seconds) */
 571	dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
 572	/* Flag as supported */
 573	dev->kbd_illum_supported = 1;
 574}
 575
 576static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
 577{
 578	u32 result;
 579
 580	if (!sci_open(dev))
 581		return -EIO;
 582
 583	result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
 584	sci_close(dev);
 585	if (result == TOS_FAILURE)
 586		pr_err("ACPI call to set KBD backlight status failed\n");
 587	else if (result == TOS_NOT_SUPPORTED)
 588		return -ENODEV;
 589
 590	return result == TOS_SUCCESS ? 0 : -EIO;
 591}
 592
 593static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
 594{
 595	u32 result;
 596
 597	if (!sci_open(dev))
 598		return -EIO;
 599
 600	result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
 601	sci_close(dev);
 602	if (result == TOS_FAILURE)
 603		pr_err("ACPI call to get KBD backlight status failed\n");
 604	else if (result == TOS_NOT_SUPPORTED)
 605		return -ENODEV;
 606
 607	return result == TOS_SUCCESS ? 0 : -EIO;
 608}
 609
 610static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
 611{
 612	struct toshiba_acpi_dev *dev = container_of(cdev,
 613			struct toshiba_acpi_dev, kbd_led);
 614	u32 result;
 615	u32 state;
 616
 617	/* Check the keyboard backlight state */
 618	result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
 619	if (result == TOS_FAILURE) {
 620		pr_err("ACPI call to get the keyboard backlight failed\n");
 621		return LED_OFF;
 622	} else if (result != TOS_SUCCESS) {
 623		return LED_OFF;
 624	}
 625
 626	return state ? LED_FULL : LED_OFF;
 627}
 628
 629static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
 630				     enum led_brightness brightness)
 631{
 632	struct toshiba_acpi_dev *dev = container_of(cdev,
 633			struct toshiba_acpi_dev, kbd_led);
 634	u32 result;
 635	u32 state;
 636
 637	/* Set the keyboard backlight state */
 638	state = brightness ? 1 : 0;
 639	result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
 640	if (result == TOS_FAILURE)
 641		pr_err("ACPI call to set KBD Illumination mode failed\n");
 642}
 643
 644/* TouchPad support */
 645static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
 646{
 647	u32 result;
 648
 649	if (!sci_open(dev))
 650		return -EIO;
 651
 652	result = sci_write(dev, SCI_TOUCHPAD, state);
 653	sci_close(dev);
 654	if (result == TOS_FAILURE)
 655		pr_err("ACPI call to set the touchpad failed\n");
 656	else if (result == TOS_NOT_SUPPORTED)
 657		return -ENODEV;
 658
 659	return result == TOS_SUCCESS ? 0 : -EIO;
 660}
 661
 662static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
 663{
 664	u32 result;
 665
 666	if (!sci_open(dev))
 667		return -EIO;
 668
 669	result = sci_read(dev, SCI_TOUCHPAD, state);
 670	sci_close(dev);
 671	if (result == TOS_FAILURE)
 672		pr_err("ACPI call to query the touchpad failed\n");
 673	else if (result == TOS_NOT_SUPPORTED)
 674		return -ENODEV;
 675
 676	return result == TOS_SUCCESS ? 0 : -EIO;
 677}
 678
 679/* Eco Mode support */
 680static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
 681{
 682	u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
 683	u32 out[TCI_WORDS];
 684	acpi_status status;
 685
 686	dev->eco_supported = 0;
 687	dev->eco_led_registered = false;
 688
 689	status = tci_raw(dev, in, out);
 690	if (ACPI_FAILURE(status)) {
 691		pr_err("ACPI call to get ECO led failed\n");
 692		return;
 693	}
 694
 695	if (out[0] == TOS_INPUT_DATA_ERROR) {
 696		/*
 697		 * If we receive 0x8300 (Input Data Error), it means that the
 698		 * LED device is present, but that we just screwed the input
 699		 * parameters.
 700		 *
 
 
 
 701		 * Let's query the status of the LED to see if we really have a
 702		 * success response, indicating the actual presense of the LED,
 703		 * bail out otherwise.
 704		 */
 705		in[3] = 1;
 706		status = tci_raw(dev, in, out);
 707		if (ACPI_FAILURE(status)) {
 708			pr_err("ACPI call to get ECO led failed\n");
 709			return;
 710		}
 711
 712		if (out[0] != TOS_SUCCESS)
 713			return;
 714
 715		dev->eco_supported = 1;
 716	}
 717}
 718
 719static enum led_brightness
 720toshiba_eco_mode_get_status(struct led_classdev *cdev)
 721{
 722	struct toshiba_acpi_dev *dev = container_of(cdev,
 723			struct toshiba_acpi_dev, eco_led);
 724	u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
 725	u32 out[TCI_WORDS];
 726	acpi_status status;
 727
 728	status = tci_raw(dev, in, out);
 729	if (ACPI_FAILURE(status)) {
 730		pr_err("ACPI call to get ECO led failed\n");
 731		return LED_OFF;
 732	}
 733
 734	if (out[0] != TOS_SUCCESS)
 735		return LED_OFF;
 736
 737	return out[2] ? LED_FULL : LED_OFF;
 738}
 739
 740static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
 741				     enum led_brightness brightness)
 742{
 743	struct toshiba_acpi_dev *dev = container_of(cdev,
 744			struct toshiba_acpi_dev, eco_led);
 745	u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
 746	u32 out[TCI_WORDS];
 747	acpi_status status;
 748
 749	/* Switch the Eco Mode led on/off */
 750	in[2] = (brightness) ? 1 : 0;
 751	status = tci_raw(dev, in, out);
 752	if (ACPI_FAILURE(status))
 753		pr_err("ACPI call to set ECO led failed\n");
 754}
 755
 756/* Accelerometer support */
 757static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
 758{
 759	u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
 760	u32 out[TCI_WORDS];
 761	acpi_status status;
 762
 763	dev->accelerometer_supported = 0;
 764
 765	/*
 766	 * Check if the accelerometer call exists,
 767	 * this call also serves as initialization
 768	 */
 769	status = tci_raw(dev, in, out);
 770	if (ACPI_FAILURE(status)) {
 771		pr_err("ACPI call to query the accelerometer failed\n");
 772		return;
 773	}
 774
 775	if (out[0] != TOS_SUCCESS)
 776		return;
 777
 778	dev->accelerometer_supported = 1;
 779}
 780
 781static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
 782				     u32 *xy, u32 *z)
 783{
 784	u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
 785	u32 out[TCI_WORDS];
 786	acpi_status status;
 787
 788	/* Check the Accelerometer status */
 789	status = tci_raw(dev, in, out);
 790	if (ACPI_FAILURE(status)) {
 791		pr_err("ACPI call to query the accelerometer failed\n");
 792		return -EIO;
 793	}
 794
 795	if (out[0] == TOS_NOT_SUPPORTED)
 796		return -ENODEV;
 797
 798	if (out[0] != TOS_SUCCESS)
 799		return -EIO;
 800
 801	*xy = out[2];
 802	*z = out[4];
 803
 804	return 0;
 805}
 806
 807/* Sleep (Charge and Music) utilities support */
 808static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
 809{
 810	u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 811	u32 out[TCI_WORDS];
 812	acpi_status status;
 813
 814	dev->usb_sleep_charge_supported = 0;
 815
 816	if (!sci_open(dev))
 817		return;
 818
 819	status = tci_raw(dev, in, out);
 820	if (ACPI_FAILURE(status)) {
 821		pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
 822		sci_close(dev);
 823		return;
 824	}
 825
 826	if (out[0] != TOS_SUCCESS) {
 827		sci_close(dev);
 828		return;
 829	}
 830
 831	dev->usbsc_mode_base = out[4];
 832
 833	in[5] = SCI_USB_CHARGE_BAT_LVL;
 834	status = tci_raw(dev, in, out);
 835	sci_close(dev);
 836	if (ACPI_FAILURE(status)) {
 837		pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
 838		return;
 839	}
 840
 841	if (out[0] != TOS_SUCCESS)
 842		return;
 843
 844	dev->usbsc_bat_level = out[2];
 845	/* Flag as supported */
 846	dev->usb_sleep_charge_supported = 1;
 847}
 848
 849static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
 850					u32 *mode)
 851{
 852	u32 result;
 853
 854	if (!sci_open(dev))
 855		return -EIO;
 856
 857	result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
 858	sci_close(dev);
 859	if (result == TOS_FAILURE)
 860		pr_err("ACPI call to set USB S&C mode failed\n");
 861	else if (result == TOS_NOT_SUPPORTED)
 862		return -ENODEV;
 863
 864	return result == TOS_SUCCESS ? 0 : -EIO;
 865}
 866
 867static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
 868					u32 mode)
 869{
 870	u32 result;
 871
 872	if (!sci_open(dev))
 873		return -EIO;
 874
 875	result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
 876	sci_close(dev);
 877	if (result == TOS_FAILURE)
 878		pr_err("ACPI call to set USB S&C mode failed\n");
 879	else if (result == TOS_NOT_SUPPORTED)
 880		return -ENODEV;
 881
 882	return result == TOS_SUCCESS ? 0 : -EIO;
 883}
 884
 885static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
 886					      u32 *mode)
 887{
 888	u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 889	u32 out[TCI_WORDS];
 890	acpi_status status;
 891
 892	if (!sci_open(dev))
 893		return -EIO;
 894
 895	in[5] = SCI_USB_CHARGE_BAT_LVL;
 896	status = tci_raw(dev, in, out);
 897	sci_close(dev);
 898	if (ACPI_FAILURE(status)) {
 899		pr_err("ACPI call to get USB S&C battery level failed\n");
 900		return -EIO;
 901	}
 902
 903	if (out[0] == TOS_NOT_SUPPORTED)
 904		return -ENODEV;
 905
 906	if (out[0] != TOS_SUCCESS)
 907		return -EIO;
 908
 909	*mode = out[2];
 910
 911	return 0;
 912
 913}
 914
 915static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
 916					      u32 mode)
 917{
 918	u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 919	u32 out[TCI_WORDS];
 920	acpi_status status;
 921
 922	if (!sci_open(dev))
 923		return -EIO;
 924
 925	in[2] = mode;
 926	in[5] = SCI_USB_CHARGE_BAT_LVL;
 927	status = tci_raw(dev, in, out);
 928	sci_close(dev);
 929	if (ACPI_FAILURE(status)) {
 930		pr_err("ACPI call to set USB S&C battery level failed\n");
 931		return -EIO;
 932	}
 933
 934	if (out[0] == TOS_NOT_SUPPORTED)
 935		return -ENODEV;
 936
 937	return out[0] == TOS_SUCCESS ? 0 : -EIO;
 938}
 939
 940static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
 941					u32 *state)
 942{
 943	u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 944	u32 out[TCI_WORDS];
 945	acpi_status status;
 946
 947	if (!sci_open(dev))
 948		return -EIO;
 949
 950	in[5] = SCI_USB_CHARGE_RAPID_DSP;
 951	status = tci_raw(dev, in, out);
 952	sci_close(dev);
 953	if (ACPI_FAILURE(status)) {
 954		pr_err("ACPI call to get USB Rapid Charge failed\n");
 955		return -EIO;
 956	}
 957
 958	if (out[0] == TOS_NOT_SUPPORTED)
 959		return -ENODEV;
 960
 961	if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
 962		return -EIO;
 963
 964	*state = out[2];
 965
 966	return 0;
 967}
 968
 969static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
 970					u32 state)
 971{
 972	u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
 973	u32 out[TCI_WORDS];
 974	acpi_status status;
 975
 976	if (!sci_open(dev))
 977		return -EIO;
 978
 979	in[2] = state;
 980	in[5] = SCI_USB_CHARGE_RAPID_DSP;
 981	status = tci_raw(dev, in, out);
 982	sci_close(dev);
 983	if (ACPI_FAILURE(status)) {
 984		pr_err("ACPI call to set USB Rapid Charge failed\n");
 985		return -EIO;
 986	}
 987
 988	if (out[0] == TOS_NOT_SUPPORTED)
 989		return -ENODEV;
 990
 991	return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
 992}
 993
 994static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
 995{
 996	u32 result;
 997
 998	if (!sci_open(dev))
 999		return -EIO;
1000
1001	result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
1002	sci_close(dev);
1003	if (result == TOS_FAILURE)
1004		pr_err("ACPI call to get Sleep and Music failed\n");
1005	else if (result == TOS_NOT_SUPPORTED)
1006		return -ENODEV;
1007
1008	return result == TOS_SUCCESS ? 0 : -EIO;
1009}
1010
1011static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1012{
1013	u32 result;
1014
1015	if (!sci_open(dev))
1016		return -EIO;
1017
1018	result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1019	sci_close(dev);
1020	if (result == TOS_FAILURE)
1021		pr_err("ACPI call to set Sleep and Music failed\n");
1022	else if (result == TOS_NOT_SUPPORTED)
1023		return -ENODEV;
1024
1025	return result == TOS_SUCCESS ? 0 : -EIO;
1026}
1027
1028/* Keyboard function keys */
1029static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1030{
1031	u32 result;
1032
1033	if (!sci_open(dev))
1034		return -EIO;
1035
1036	result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1037	sci_close(dev);
1038	if (result == TOS_FAILURE)
1039		pr_err("ACPI call to get KBD function keys failed\n");
1040	else if (result == TOS_NOT_SUPPORTED)
1041		return -ENODEV;
1042
1043	return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1044}
1045
1046static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1047{
1048	u32 result;
1049
1050	if (!sci_open(dev))
1051		return -EIO;
1052
1053	result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1054	sci_close(dev);
1055	if (result == TOS_FAILURE)
1056		pr_err("ACPI call to set KBD function keys failed\n");
1057	else if (result == TOS_NOT_SUPPORTED)
1058		return -ENODEV;
1059
1060	return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1061}
1062
1063/* Panel Power ON */
1064static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1065{
1066	u32 result;
1067
1068	if (!sci_open(dev))
1069		return -EIO;
1070
1071	result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1072	sci_close(dev);
1073	if (result == TOS_FAILURE)
1074		pr_err("ACPI call to get Panel Power ON failed\n");
1075	else if (result == TOS_NOT_SUPPORTED)
1076		return -ENODEV;
1077
1078	return result == TOS_SUCCESS ? 0 : -EIO;
1079}
1080
1081static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1082{
1083	u32 result;
1084
1085	if (!sci_open(dev))
1086		return -EIO;
1087
1088	result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1089	sci_close(dev);
1090	if (result == TOS_FAILURE)
1091		pr_err("ACPI call to set Panel Power ON failed\n");
1092	else if (result == TOS_NOT_SUPPORTED)
1093		return -ENODEV;
1094
1095	return result == TOS_SUCCESS ? 0 : -EIO;
1096}
1097
1098/* USB Three */
1099static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1100{
1101	u32 result;
1102
1103	if (!sci_open(dev))
1104		return -EIO;
1105
1106	result = sci_read(dev, SCI_USB_THREE, state);
1107	sci_close(dev);
1108	if (result == TOS_FAILURE)
1109		pr_err("ACPI call to get USB 3 failed\n");
1110	else if (result == TOS_NOT_SUPPORTED)
1111		return -ENODEV;
1112
1113	return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1114}
1115
1116static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1117{
1118	u32 result;
1119
1120	if (!sci_open(dev))
1121		return -EIO;
1122
1123	result = sci_write(dev, SCI_USB_THREE, state);
1124	sci_close(dev);
1125	if (result == TOS_FAILURE)
1126		pr_err("ACPI call to set USB 3 failed\n");
1127	else if (result == TOS_NOT_SUPPORTED)
1128		return -ENODEV;
1129
1130	return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1131}
1132
1133/* Hotkey Event type */
1134static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1135					 u32 *type)
1136{
1137	u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1138	u32 out[TCI_WORDS];
1139	acpi_status status;
1140
1141	status = tci_raw(dev, in, out);
1142	if (ACPI_FAILURE(status)) {
1143		pr_err("ACPI call to get System type failed\n");
1144		return -EIO;
1145	}
1146
1147	if (out[0] == TOS_NOT_SUPPORTED)
1148		return -ENODEV;
1149
1150	if (out[0] != TOS_SUCCESS)
1151		return -EIO;
1152
1153	*type = out[3];
1154
1155	return 0;
1156}
1157
1158/* Wireless status (RFKill, WLAN, BT, WWAN) */
1159static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1160{
1161	u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1162	u32 out[TCI_WORDS];
1163	acpi_status status;
1164
1165	in[3] = HCI_WIRELESS_STATUS;
1166	status = tci_raw(dev, in, out);
1167
1168	if (ACPI_FAILURE(status)) {
1169		pr_err("ACPI call to get Wireless status failed\n");
1170		return -EIO;
1171	}
1172
1173	if (out[0] == TOS_NOT_SUPPORTED)
1174		return -ENODEV;
1175
1176	if (out[0] != TOS_SUCCESS)
1177		return -EIO;
1178
1179	dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1180
1181	return 0;
1182}
1183
1184/* WWAN */
1185static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1186{
1187	u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1188	u32 out[TCI_WORDS];
1189	acpi_status status;
1190
1191	dev->wwan_supported = 0;
1192
1193	/*
1194	 * WWAN support can be queried by setting the in[3] value to
1195	 * HCI_WIRELESS_WWAN (0x03).
1196	 *
1197	 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1198	 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1199	 *
1200	 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1201	 * or TOS_NOT_SUPPORTED (0x8000).
1202	 */
1203	in[3] = HCI_WIRELESS_WWAN;
1204	status = tci_raw(dev, in, out);
1205	if (ACPI_FAILURE(status)) {
1206		pr_err("ACPI call to get WWAN status failed\n");
1207		return;
1208	}
1209
1210	if (out[0] != TOS_SUCCESS)
1211		return;
1212
1213	dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1214}
1215
1216static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1217{
1218	u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1219	u32 out[TCI_WORDS];
1220	acpi_status status;
1221
1222	in[3] = HCI_WIRELESS_WWAN_STATUS;
1223	status = tci_raw(dev, in, out);
1224	if (ACPI_FAILURE(status)) {
1225		pr_err("ACPI call to set WWAN status failed\n");
1226		return -EIO;
1227	}
1228
1229	if (out[0] == TOS_NOT_SUPPORTED)
1230		return -ENODEV;
1231
1232	if (out[0] != TOS_SUCCESS)
1233		return -EIO;
1234
1235	/*
1236	 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1237	 * (de)activate the device, but some others need the
1238	 * HCI_WIRELESS_WWAN_POWER call as well.
1239	 */
1240	in[3] = HCI_WIRELESS_WWAN_POWER;
1241	status = tci_raw(dev, in, out);
1242	if (ACPI_FAILURE(status)) {
1243		pr_err("ACPI call to set WWAN power failed\n");
1244		return -EIO;
1245	}
1246
1247	if (out[0] == TOS_NOT_SUPPORTED)
1248		return -ENODEV;
1249
1250	return out[0] == TOS_SUCCESS ? 0 : -EIO;
1251}
1252
1253/* Cooling Method */
1254static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1255{
1256	u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1257	u32 out[TCI_WORDS];
1258	acpi_status status;
1259
1260	dev->cooling_method_supported = 0;
1261	dev->max_cooling_method = 0;
1262
1263	status = tci_raw(dev, in, out);
1264	if (ACPI_FAILURE(status)) {
1265		pr_err("ACPI call to get Cooling Method failed\n");
1266		return;
1267	}
1268
1269	if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1270		return;
1271
1272	dev->cooling_method_supported = 1;
1273	dev->max_cooling_method = out[3];
1274}
1275
1276static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1277{
1278	u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1279
1280	if (result == TOS_FAILURE)
1281		pr_err("ACPI call to get Cooling Method failed\n");
1282
1283	if (result == TOS_NOT_SUPPORTED)
1284		return -ENODEV;
1285
1286	return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1287}
1288
1289static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1290{
1291	u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1292
1293	if (result == TOS_FAILURE)
1294		pr_err("ACPI call to set Cooling Method failed\n");
1295
1296	if (result == TOS_NOT_SUPPORTED)
1297		return -ENODEV;
1298
1299	return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1300}
1301
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1302/* Transflective Backlight */
1303static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1304{
1305	u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1306
1307	if (result == TOS_FAILURE)
1308		pr_err("ACPI call to get Transflective Backlight failed\n");
1309	else if (result == TOS_NOT_SUPPORTED)
1310		return -ENODEV;
1311
1312	return result == TOS_SUCCESS ? 0 : -EIO;
1313}
1314
1315static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1316{
1317	u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1318
1319	if (result == TOS_FAILURE)
1320		pr_err("ACPI call to set Transflective Backlight failed\n");
1321	else if (result == TOS_NOT_SUPPORTED)
1322		return -ENODEV;
1323
1324	return result == TOS_SUCCESS ? 0 : -EIO;
1325}
1326
1327static struct proc_dir_entry *toshiba_proc_dir;
1328
1329/* LCD Brightness */
1330static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1331{
1332	int brightness = 0;
1333	u32 result;
1334	u32 value;
1335
1336	if (dev->tr_backlight_supported) {
1337		int ret = get_tr_backlight_status(dev, &value);
1338
1339		if (ret)
1340			return ret;
1341		if (value)
1342			return 0;
1343		brightness++;
1344	}
1345
1346	result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1347	if (result == TOS_FAILURE)
1348		pr_err("ACPI call to get LCD Brightness failed\n");
1349	else if (result == TOS_NOT_SUPPORTED)
1350		return -ENODEV;
1351
1352	return result == TOS_SUCCESS ?
1353			brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1354			-EIO;
1355}
1356
1357static int get_lcd_brightness(struct backlight_device *bd)
1358{
1359	struct toshiba_acpi_dev *dev = bl_get_data(bd);
1360
1361	return __get_lcd_brightness(dev);
1362}
1363
1364static int lcd_proc_show(struct seq_file *m, void *v)
1365{
1366	struct toshiba_acpi_dev *dev = m->private;
1367	int levels;
1368	int value;
1369
1370	if (!dev->backlight_dev)
1371		return -ENODEV;
1372
1373	levels = dev->backlight_dev->props.max_brightness + 1;
1374	value = get_lcd_brightness(dev->backlight_dev);
1375	if (value < 0) {
1376		pr_err("Error reading LCD brightness\n");
1377		return value;
1378	}
1379
1380	seq_printf(m, "brightness:              %d\n", value);
1381	seq_printf(m, "brightness_levels:       %d\n", levels);
1382
1383	return 0;
1384}
1385
1386static int lcd_proc_open(struct inode *inode, struct file *file)
1387{
1388	return single_open(file, lcd_proc_show, PDE_DATA(inode));
1389}
1390
1391static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1392{
1393	u32 result;
1394
1395	if (dev->tr_backlight_supported) {
1396		int ret = set_tr_backlight_status(dev, !value);
1397
1398		if (ret)
1399			return ret;
1400		if (value)
1401			value--;
1402	}
1403
1404	value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1405	result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1406	if (result == TOS_FAILURE)
1407		pr_err("ACPI call to set LCD Brightness failed\n");
1408	else if (result == TOS_NOT_SUPPORTED)
1409		return -ENODEV;
1410
1411	return result == TOS_SUCCESS ? 0 : -EIO;
1412}
1413
1414static int set_lcd_status(struct backlight_device *bd)
1415{
1416	struct toshiba_acpi_dev *dev = bl_get_data(bd);
1417
1418	return set_lcd_brightness(dev, bd->props.brightness);
1419}
1420
1421static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1422			      size_t count, loff_t *pos)
1423{
1424	struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1425	char cmd[42];
1426	size_t len;
1427	int levels;
1428	int value;
1429
1430	len = min(count, sizeof(cmd) - 1);
1431	if (copy_from_user(cmd, buf, len))
1432		return -EFAULT;
1433	cmd[len] = '\0';
1434
1435	levels = dev->backlight_dev->props.max_brightness + 1;
1436	if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1437	    value < 0 && value > levels)
1438		return -EINVAL;
1439
1440	if (set_lcd_brightness(dev, value))
1441		return -EIO;
1442
1443	return count;
1444}
1445
1446static const struct file_operations lcd_proc_fops = {
1447	.owner		= THIS_MODULE,
1448	.open		= lcd_proc_open,
1449	.read		= seq_read,
1450	.llseek		= seq_lseek,
1451	.release	= single_release,
1452	.write		= lcd_proc_write,
1453};
1454
1455/* Video-Out */
1456static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1457{
1458	u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1459
1460	if (result == TOS_FAILURE)
1461		pr_err("ACPI call to get Video-Out failed\n");
1462	else if (result == TOS_NOT_SUPPORTED)
1463		return -ENODEV;
1464
1465	return result == TOS_SUCCESS ? 0 : -EIO;
1466}
1467
1468static int video_proc_show(struct seq_file *m, void *v)
1469{
1470	struct toshiba_acpi_dev *dev = m->private;
1471	int is_lcd, is_crt, is_tv;
1472	u32 value;
1473
1474	if (get_video_status(dev, &value))
1475		return -EIO;
1476
1477	is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1478	is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1479	is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1480
1481	seq_printf(m, "lcd_out:                 %d\n", is_lcd);
1482	seq_printf(m, "crt_out:                 %d\n", is_crt);
1483	seq_printf(m, "tv_out:                  %d\n", is_tv);
1484
1485	return 0;
1486}
1487
1488static int video_proc_open(struct inode *inode, struct file *file)
1489{
1490	return single_open(file, video_proc_show, PDE_DATA(inode));
1491}
1492
1493static ssize_t video_proc_write(struct file *file, const char __user *buf,
1494				size_t count, loff_t *pos)
1495{
1496	struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1497	char *buffer;
1498	char *cmd;
1499	int lcd_out, crt_out, tv_out;
1500	int remain = count;
1501	int value;
1502	int ret;
1503	u32 video_out;
1504
1505	cmd = memdup_user_nul(buf, count);
1506	if (IS_ERR(cmd))
1507		return PTR_ERR(cmd);
1508
1509	buffer = cmd;
1510
1511	/*
1512	 * Scan expression.  Multiple expressions may be delimited with ;
1513	 * NOTE: To keep scanning simple, invalid fields are ignored.
1514	 */
1515	while (remain) {
1516		if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1517			lcd_out = value & 1;
1518		else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1519			crt_out = value & 1;
1520		else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1521			tv_out = value & 1;
1522		/* Advance to one character past the next ; */
1523		do {
1524			++buffer;
1525			--remain;
1526		} while (remain && *(buffer - 1) != ';');
1527	}
1528
1529	kfree(cmd);
1530
1531	lcd_out = crt_out = tv_out = -1;
1532	ret = get_video_status(dev, &video_out);
1533	if (!ret) {
1534		unsigned int new_video_out = video_out;
1535
1536		if (lcd_out != -1)
1537			_set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1538		if (crt_out != -1)
1539			_set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1540		if (tv_out != -1)
1541			_set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1542		/*
1543		 * To avoid unnecessary video disruption, only write the new
1544		 * video setting if something changed.
1545		 */
1546		if (new_video_out != video_out)
1547			ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1548	}
1549
1550	return ret ? -EIO : count;
1551}
1552
1553static const struct file_operations video_proc_fops = {
1554	.owner		= THIS_MODULE,
1555	.open		= video_proc_open,
1556	.read		= seq_read,
1557	.llseek		= seq_lseek,
1558	.release	= single_release,
1559	.write		= video_proc_write,
1560};
1561
1562/* Fan status */
1563static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1564{
1565	u32 result = hci_read(dev, HCI_FAN, status);
1566
1567	if (result == TOS_FAILURE)
1568		pr_err("ACPI call to get Fan status failed\n");
1569	else if (result == TOS_NOT_SUPPORTED)
1570		return -ENODEV;
1571
1572	return result == TOS_SUCCESS ? 0 : -EIO;
1573}
1574
1575static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1576{
1577	u32 result = hci_write(dev, HCI_FAN, status);
1578
1579	if (result == TOS_FAILURE)
1580		pr_err("ACPI call to set Fan status failed\n");
1581	else if (result == TOS_NOT_SUPPORTED)
1582		return -ENODEV;
1583
1584	return result == TOS_SUCCESS ? 0 : -EIO;
1585}
1586
1587static int fan_proc_show(struct seq_file *m, void *v)
1588{
1589	struct toshiba_acpi_dev *dev = m->private;
1590	u32 value;
1591
1592	if (get_fan_status(dev, &value))
1593		return -EIO;
1594
1595	seq_printf(m, "running:                 %d\n", (value > 0));
1596	seq_printf(m, "force_on:                %d\n", dev->force_fan);
1597
1598	return 0;
1599}
1600
1601static int fan_proc_open(struct inode *inode, struct file *file)
1602{
1603	return single_open(file, fan_proc_show, PDE_DATA(inode));
1604}
1605
1606static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1607			      size_t count, loff_t *pos)
1608{
1609	struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1610	char cmd[42];
1611	size_t len;
1612	int value;
1613
1614	len = min(count, sizeof(cmd) - 1);
1615	if (copy_from_user(cmd, buf, len))
1616		return -EFAULT;
1617	cmd[len] = '\0';
1618
1619	if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1620	    value != 0 && value != 1)
1621		return -EINVAL;
1622
1623	if (set_fan_status(dev, value))
1624		return -EIO;
1625
1626	dev->force_fan = value;
1627
1628	return count;
1629}
1630
1631static const struct file_operations fan_proc_fops = {
1632	.owner		= THIS_MODULE,
1633	.open		= fan_proc_open,
1634	.read		= seq_read,
1635	.llseek		= seq_lseek,
1636	.release	= single_release,
1637	.write		= fan_proc_write,
1638};
1639
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1640static int keys_proc_show(struct seq_file *m, void *v)
1641{
1642	struct toshiba_acpi_dev *dev = m->private;
1643
1644	seq_printf(m, "hotkey_ready:            %d\n", dev->key_event_valid);
1645	seq_printf(m, "hotkey:                  0x%04x\n", dev->last_key_event);
1646
1647	return 0;
1648}
1649
1650static int keys_proc_open(struct inode *inode, struct file *file)
1651{
1652	return single_open(file, keys_proc_show, PDE_DATA(inode));
1653}
1654
1655static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1656			       size_t count, loff_t *pos)
1657{
1658	struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1659	char cmd[42];
1660	size_t len;
1661	int value;
1662
1663	len = min(count, sizeof(cmd) - 1);
1664	if (copy_from_user(cmd, buf, len))
1665		return -EFAULT;
1666	cmd[len] = '\0';
1667
1668	if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1669		dev->key_event_valid = 0;
1670	else
1671		return -EINVAL;
1672
1673	return count;
1674}
1675
1676static const struct file_operations keys_proc_fops = {
1677	.owner		= THIS_MODULE,
1678	.open		= keys_proc_open,
1679	.read		= seq_read,
1680	.llseek		= seq_lseek,
1681	.release	= single_release,
1682	.write		= keys_proc_write,
1683};
1684
1685static int version_proc_show(struct seq_file *m, void *v)
1686{
1687	seq_printf(m, "driver:                  %s\n", TOSHIBA_ACPI_VERSION);
1688	seq_printf(m, "proc_interface:          %d\n", PROC_INTERFACE_VERSION);
1689	return 0;
1690}
1691
1692static int version_proc_open(struct inode *inode, struct file *file)
1693{
1694	return single_open(file, version_proc_show, PDE_DATA(inode));
1695}
1696
1697static const struct file_operations version_proc_fops = {
1698	.owner		= THIS_MODULE,
1699	.open		= version_proc_open,
1700	.read		= seq_read,
1701	.llseek		= seq_lseek,
1702	.release	= single_release,
1703};
1704
1705/*
1706 * Proc and module init
1707 */
1708
1709#define PROC_TOSHIBA		"toshiba"
1710
1711static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1712{
1713	if (dev->backlight_dev)
1714		proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1715				 &lcd_proc_fops, dev);
1716	if (dev->video_supported)
1717		proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1718				 &video_proc_fops, dev);
1719	if (dev->fan_supported)
1720		proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1721				 &fan_proc_fops, dev);
1722	if (dev->hotkey_dev)
1723		proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1724				 &keys_proc_fops, dev);
1725	proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1726			 &version_proc_fops, dev);
1727}
1728
1729static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1730{
1731	if (dev->backlight_dev)
1732		remove_proc_entry("lcd", toshiba_proc_dir);
1733	if (dev->video_supported)
1734		remove_proc_entry("video", toshiba_proc_dir);
1735	if (dev->fan_supported)
1736		remove_proc_entry("fan", toshiba_proc_dir);
1737	if (dev->hotkey_dev)
1738		remove_proc_entry("keys", toshiba_proc_dir);
1739	remove_proc_entry("version", toshiba_proc_dir);
1740}
1741
1742static const struct backlight_ops toshiba_backlight_data = {
1743	.options = BL_CORE_SUSPENDRESUME,
1744	.get_brightness = get_lcd_brightness,
1745	.update_status  = set_lcd_status,
1746};
1747
1748/* Keyboard backlight work */
1749static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1750
1751static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1752
1753/*
1754 * Sysfs files
1755 */
1756static ssize_t version_show(struct device *dev,
1757			    struct device_attribute *attr, char *buf)
1758{
1759	return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1760}
1761static DEVICE_ATTR_RO(version);
1762
1763static ssize_t fan_store(struct device *dev,
1764			 struct device_attribute *attr,
1765			 const char *buf, size_t count)
1766{
1767	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1768	int state;
1769	int ret;
1770
1771	ret = kstrtoint(buf, 0, &state);
1772	if (ret)
1773		return ret;
1774
1775	if (state != 0 && state != 1)
1776		return -EINVAL;
1777
1778	ret = set_fan_status(toshiba, state);
1779	if (ret)
1780		return ret;
1781
1782	return count;
1783}
1784
1785static ssize_t fan_show(struct device *dev,
1786			struct device_attribute *attr, char *buf)
1787{
1788	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1789	u32 value;
1790	int ret;
1791
1792	ret = get_fan_status(toshiba, &value);
1793	if (ret)
1794		return ret;
1795
1796	return sprintf(buf, "%d\n", value);
1797}
1798static DEVICE_ATTR_RW(fan);
1799
1800static ssize_t kbd_backlight_mode_store(struct device *dev,
1801					struct device_attribute *attr,
1802					const char *buf, size_t count)
1803{
1804	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1805	int mode;
1806	int ret;
1807
1808
1809	ret = kstrtoint(buf, 0, &mode);
1810	if (ret)
1811		return ret;
1812
1813	/* Check for supported modes depending on keyboard backlight type */
1814	if (toshiba->kbd_type == 1) {
1815		/* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1816		if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1817			return -EINVAL;
1818	} else if (toshiba->kbd_type == 2) {
1819		/* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1820		if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1821		    mode != SCI_KBD_MODE_OFF)
1822			return -EINVAL;
1823	}
1824
1825	/*
1826	 * Set the Keyboard Backlight Mode where:
1827	 *	Auto - KBD backlight turns off automatically in given time
1828	 *	FN-Z - KBD backlight "toggles" when hotkey pressed
1829	 *	ON   - KBD backlight is always on
1830	 *	OFF  - KBD backlight is always off
1831	 */
1832
1833	/* Only make a change if the actual mode has changed */
1834	if (toshiba->kbd_mode != mode) {
1835		/* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1836		int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1837
1838		/* OR the "base time" to the actual method format */
1839		if (toshiba->kbd_type == 1) {
1840			/* Type 1 requires the current mode */
1841			time |= toshiba->kbd_mode;
1842		} else if (toshiba->kbd_type == 2) {
1843			/* Type 2 requires the desired mode */
1844			time |= mode;
1845		}
1846
1847		ret = toshiba_kbd_illum_status_set(toshiba, time);
1848		if (ret)
1849			return ret;
1850
1851		toshiba->kbd_mode = mode;
 
1852
1853		/*
1854		 * Some laptop models with the second generation backlit
1855		 * keyboard (type 2) do not generate the keyboard backlight
1856		 * changed event (0x92), and thus, the driver will never update
1857		 * the sysfs entries.
1858		 *
1859		 * The event is generated right when changing the keyboard
1860		 * backlight mode and the *notify function will set the
1861		 * kbd_event_generated to true.
1862		 *
1863		 * In case the event is not generated, schedule the keyboard
1864		 * backlight work to update the sysfs entries and emulate the
1865		 * event via genetlink.
1866		 */
1867		if (toshiba->kbd_type == 2 &&
1868		    !toshiba_acpi->kbd_event_generated)
1869			schedule_work(&kbd_bl_work);
1870	}
1871
1872	return count;
1873}
1874
1875static ssize_t kbd_backlight_mode_show(struct device *dev,
1876				       struct device_attribute *attr,
1877				       char *buf)
1878{
1879	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1880	u32 time;
1881
1882	if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1883		return -EIO;
1884
1885	return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1886}
1887static DEVICE_ATTR_RW(kbd_backlight_mode);
1888
1889static ssize_t kbd_type_show(struct device *dev,
1890			     struct device_attribute *attr, char *buf)
1891{
1892	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1893
1894	return sprintf(buf, "%d\n", toshiba->kbd_type);
1895}
1896static DEVICE_ATTR_RO(kbd_type);
1897
1898static ssize_t available_kbd_modes_show(struct device *dev,
1899					struct device_attribute *attr,
1900					char *buf)
1901{
1902	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1903
1904	if (toshiba->kbd_type == 1)
1905		return sprintf(buf, "0x%x 0x%x\n",
1906			       SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1907
1908	return sprintf(buf, "0x%x 0x%x 0x%x\n",
1909		       SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1910}
1911static DEVICE_ATTR_RO(available_kbd_modes);
1912
1913static ssize_t kbd_backlight_timeout_store(struct device *dev,
1914					   struct device_attribute *attr,
1915					   const char *buf, size_t count)
1916{
1917	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1918	int time;
1919	int ret;
1920
1921	ret = kstrtoint(buf, 0, &time);
1922	if (ret)
1923		return ret;
1924
1925	/* Check for supported values depending on kbd_type */
1926	if (toshiba->kbd_type == 1) {
1927		if (time < 0 || time > 60)
1928			return -EINVAL;
1929	} else if (toshiba->kbd_type == 2) {
1930		if (time < 1 || time > 60)
1931			return -EINVAL;
1932	}
1933
1934	/* Set the Keyboard Backlight Timeout */
1935
1936	/* Only make a change if the actual timeout has changed */
1937	if (toshiba->kbd_time != time) {
1938		/* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1939		time = time << HCI_MISC_SHIFT;
1940		/* OR the "base time" to the actual method format */
1941		if (toshiba->kbd_type == 1)
1942			time |= SCI_KBD_MODE_FNZ;
1943		else if (toshiba->kbd_type == 2)
1944			time |= SCI_KBD_MODE_AUTO;
1945
1946		ret = toshiba_kbd_illum_status_set(toshiba, time);
1947		if (ret)
1948			return ret;
1949
1950		toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1951	}
1952
1953	return count;
1954}
1955
1956static ssize_t kbd_backlight_timeout_show(struct device *dev,
1957					  struct device_attribute *attr,
1958					  char *buf)
1959{
1960	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1961	u32 time;
1962
1963	if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1964		return -EIO;
1965
1966	return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1967}
1968static DEVICE_ATTR_RW(kbd_backlight_timeout);
1969
1970static ssize_t touchpad_store(struct device *dev,
1971			      struct device_attribute *attr,
1972			      const char *buf, size_t count)
1973{
1974	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1975	int state;
1976	int ret;
1977
1978	/* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1979	ret = kstrtoint(buf, 0, &state);
1980	if (ret)
1981		return ret;
1982	if (state != 0 && state != 1)
1983		return -EINVAL;
1984
1985	ret = toshiba_touchpad_set(toshiba, state);
1986	if (ret)
1987		return ret;
1988
1989	return count;
1990}
1991
1992static ssize_t touchpad_show(struct device *dev,
1993			     struct device_attribute *attr, char *buf)
1994{
1995	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1996	u32 state;
1997	int ret;
1998
1999	ret = toshiba_touchpad_get(toshiba, &state);
2000	if (ret < 0)
2001		return ret;
2002
2003	return sprintf(buf, "%i\n", state);
2004}
2005static DEVICE_ATTR_RW(touchpad);
2006
2007static ssize_t usb_sleep_charge_show(struct device *dev,
2008				     struct device_attribute *attr, char *buf)
2009{
2010	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2011	u32 mode;
2012	int ret;
2013
2014	ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
2015	if (ret < 0)
2016		return ret;
2017
2018	return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
2019}
2020
2021static ssize_t usb_sleep_charge_store(struct device *dev,
2022				      struct device_attribute *attr,
2023				      const char *buf, size_t count)
2024{
2025	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2026	int state;
2027	u32 mode;
2028	int ret;
2029
2030	ret = kstrtoint(buf, 0, &state);
2031	if (ret)
2032		return ret;
2033	/*
2034	 * Check for supported values, where:
2035	 * 0 - Disabled
2036	 * 1 - Alternate (Non USB conformant devices that require more power)
2037	 * 2 - Auto (USB conformant devices)
2038	 * 3 - Typical
2039	 */
2040	if (state != 0 && state != 1 && state != 2 && state != 3)
2041		return -EINVAL;
2042
2043	/* Set the USB charging mode to internal value */
2044	mode = toshiba->usbsc_mode_base;
2045	if (state == 0)
2046		mode |= SCI_USB_CHARGE_DISABLED;
2047	else if (state == 1)
2048		mode |= SCI_USB_CHARGE_ALTERNATE;
2049	else if (state == 2)
2050		mode |= SCI_USB_CHARGE_AUTO;
2051	else if (state == 3)
2052		mode |= SCI_USB_CHARGE_TYPICAL;
2053
2054	ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2055	if (ret)
2056		return ret;
2057
2058	return count;
2059}
2060static DEVICE_ATTR_RW(usb_sleep_charge);
2061
2062static ssize_t sleep_functions_on_battery_show(struct device *dev,
2063					       struct device_attribute *attr,
2064					       char *buf)
2065{
2066	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2067	int bat_lvl, status;
2068	u32 state;
2069	int ret;
2070	int tmp;
2071
2072	ret = toshiba_sleep_functions_status_get(toshiba, &state);
2073	if (ret < 0)
2074		return ret;
2075
2076	/* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2077	tmp = state & SCI_USB_CHARGE_BAT_MASK;
2078	status = (tmp == 0x4) ? 1 : 0;
2079	/* Determine the battery level set */
2080	bat_lvl = state >> HCI_MISC_SHIFT;
2081
2082	return sprintf(buf, "%d %d\n", status, bat_lvl);
2083}
2084
2085static ssize_t sleep_functions_on_battery_store(struct device *dev,
2086						struct device_attribute *attr,
2087						const char *buf, size_t count)
2088{
2089	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2090	u32 status;
2091	int value;
2092	int ret;
2093	int tmp;
2094
2095	ret = kstrtoint(buf, 0, &value);
2096	if (ret)
2097		return ret;
2098
2099	/*
2100	 * Set the status of the function:
2101	 * 0 - Disabled
2102	 * 1-100 - Enabled
2103	 */
2104	if (value < 0 || value > 100)
2105		return -EINVAL;
2106
2107	if (value == 0) {
2108		tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2109		status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2110	} else {
2111		tmp = value << HCI_MISC_SHIFT;
2112		status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2113	}
2114	ret = toshiba_sleep_functions_status_set(toshiba, status);
2115	if (ret < 0)
2116		return ret;
2117
2118	toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2119
2120	return count;
2121}
2122static DEVICE_ATTR_RW(sleep_functions_on_battery);
2123
2124static ssize_t usb_rapid_charge_show(struct device *dev,
2125				     struct device_attribute *attr, char *buf)
2126{
2127	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2128	u32 state;
2129	int ret;
2130
2131	ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2132	if (ret < 0)
2133		return ret;
2134
2135	return sprintf(buf, "%d\n", state);
2136}
2137
2138static ssize_t usb_rapid_charge_store(struct device *dev,
2139				      struct device_attribute *attr,
2140				      const char *buf, size_t count)
2141{
2142	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2143	int state;
2144	int ret;
2145
2146	ret = kstrtoint(buf, 0, &state);
2147	if (ret)
2148		return ret;
2149	if (state != 0 && state != 1)
2150		return -EINVAL;
2151
2152	ret = toshiba_usb_rapid_charge_set(toshiba, state);
2153	if (ret)
2154		return ret;
2155
2156	return count;
2157}
2158static DEVICE_ATTR_RW(usb_rapid_charge);
2159
2160static ssize_t usb_sleep_music_show(struct device *dev,
2161				    struct device_attribute *attr, char *buf)
2162{
2163	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2164	u32 state;
2165	int ret;
2166
2167	ret = toshiba_usb_sleep_music_get(toshiba, &state);
2168	if (ret < 0)
2169		return ret;
2170
2171	return sprintf(buf, "%d\n", state);
2172}
2173
2174static ssize_t usb_sleep_music_store(struct device *dev,
2175				     struct device_attribute *attr,
2176				     const char *buf, size_t count)
2177{
2178	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2179	int state;
2180	int ret;
2181
2182	ret = kstrtoint(buf, 0, &state);
2183	if (ret)
2184		return ret;
2185	if (state != 0 && state != 1)
2186		return -EINVAL;
2187
2188	ret = toshiba_usb_sleep_music_set(toshiba, state);
2189	if (ret)
2190		return ret;
2191
2192	return count;
2193}
2194static DEVICE_ATTR_RW(usb_sleep_music);
2195
2196static ssize_t kbd_function_keys_show(struct device *dev,
2197				      struct device_attribute *attr, char *buf)
2198{
2199	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2200	int mode;
2201	int ret;
2202
2203	ret = toshiba_function_keys_get(toshiba, &mode);
2204	if (ret < 0)
2205		return ret;
2206
2207	return sprintf(buf, "%d\n", mode);
2208}
2209
2210static ssize_t kbd_function_keys_store(struct device *dev,
2211				       struct device_attribute *attr,
2212				       const char *buf, size_t count)
2213{
2214	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2215	int mode;
2216	int ret;
2217
2218	ret = kstrtoint(buf, 0, &mode);
2219	if (ret)
2220		return ret;
2221	/*
2222	 * Check for the function keys mode where:
2223	 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2224	 * 1 - Special functions (Opposite of the above setting)
2225	 */
2226	if (mode != 0 && mode != 1)
2227		return -EINVAL;
2228
2229	ret = toshiba_function_keys_set(toshiba, mode);
2230	if (ret)
2231		return ret;
2232
2233	pr_info("Reboot for changes to KBD Function Keys to take effect");
2234
2235	return count;
2236}
2237static DEVICE_ATTR_RW(kbd_function_keys);
2238
2239static ssize_t panel_power_on_show(struct device *dev,
2240				   struct device_attribute *attr, char *buf)
2241{
2242	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2243	u32 state;
2244	int ret;
2245
2246	ret = toshiba_panel_power_on_get(toshiba, &state);
2247	if (ret < 0)
2248		return ret;
2249
2250	return sprintf(buf, "%d\n", state);
2251}
2252
2253static ssize_t panel_power_on_store(struct device *dev,
2254				    struct device_attribute *attr,
2255				    const char *buf, size_t count)
2256{
2257	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2258	int state;
2259	int ret;
2260
2261	ret = kstrtoint(buf, 0, &state);
2262	if (ret)
2263		return ret;
2264	if (state != 0 && state != 1)
2265		return -EINVAL;
2266
2267	ret = toshiba_panel_power_on_set(toshiba, state);
2268	if (ret)
2269		return ret;
2270
2271	pr_info("Reboot for changes to Panel Power ON to take effect");
2272
2273	return count;
2274}
2275static DEVICE_ATTR_RW(panel_power_on);
2276
2277static ssize_t usb_three_show(struct device *dev,
2278			      struct device_attribute *attr, char *buf)
2279{
2280	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2281	u32 state;
2282	int ret;
2283
2284	ret = toshiba_usb_three_get(toshiba, &state);
2285	if (ret < 0)
2286		return ret;
2287
2288	return sprintf(buf, "%d\n", state);
2289}
2290
2291static ssize_t usb_three_store(struct device *dev,
2292			       struct device_attribute *attr,
2293			       const char *buf, size_t count)
2294{
2295	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2296	int state;
2297	int ret;
2298
2299	ret = kstrtoint(buf, 0, &state);
2300	if (ret)
2301		return ret;
2302	/*
2303	 * Check for USB 3 mode where:
2304	 * 0 - Disabled (Acts like a USB 2 port, saving power)
2305	 * 1 - Enabled
2306	 */
2307	if (state != 0 && state != 1)
2308		return -EINVAL;
2309
2310	ret = toshiba_usb_three_set(toshiba, state);
2311	if (ret)
2312		return ret;
2313
2314	pr_info("Reboot for changes to USB 3 to take effect");
2315
2316	return count;
2317}
2318static DEVICE_ATTR_RW(usb_three);
2319
2320static ssize_t cooling_method_show(struct device *dev,
2321				   struct device_attribute *attr, char *buf)
2322{
2323	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2324	int state;
2325	int ret;
2326
2327	ret = toshiba_cooling_method_get(toshiba, &state);
2328	if (ret < 0)
2329		return ret;
2330
2331	return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2332}
2333
2334static ssize_t cooling_method_store(struct device *dev,
2335				    struct device_attribute *attr,
2336				    const char *buf, size_t count)
2337{
2338	struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2339	int state;
2340	int ret;
2341
2342	ret = kstrtoint(buf, 0, &state);
2343	if (ret)
2344		return ret;
2345
2346	/*
2347	 * Check for supported values
2348	 * Depending on the laptop model, some only support these two:
2349	 * 0 - Maximum Performance
2350	 * 1 - Battery Optimized
2351	 *
2352	 * While some others support all three methods:
2353	 * 0 - Maximum Performance
2354	 * 1 - Performance
2355	 * 2 - Battery Optimized
2356	 */
2357	if (state < 0 || state > toshiba->max_cooling_method)
2358		return -EINVAL;
2359
2360	ret = toshiba_cooling_method_set(toshiba, state);
2361	if (ret)
2362		return ret;
2363
2364	return count;
2365}
2366static DEVICE_ATTR_RW(cooling_method);
2367
2368static struct attribute *toshiba_attributes[] = {
2369	&dev_attr_version.attr,
2370	&dev_attr_fan.attr,
2371	&dev_attr_kbd_backlight_mode.attr,
2372	&dev_attr_kbd_type.attr,
2373	&dev_attr_available_kbd_modes.attr,
2374	&dev_attr_kbd_backlight_timeout.attr,
2375	&dev_attr_touchpad.attr,
2376	&dev_attr_usb_sleep_charge.attr,
2377	&dev_attr_sleep_functions_on_battery.attr,
2378	&dev_attr_usb_rapid_charge.attr,
2379	&dev_attr_usb_sleep_music.attr,
2380	&dev_attr_kbd_function_keys.attr,
2381	&dev_attr_panel_power_on.attr,
2382	&dev_attr_usb_three.attr,
2383	&dev_attr_cooling_method.attr,
2384	NULL,
2385};
2386
2387static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2388					struct attribute *attr, int idx)
2389{
2390	struct device *dev = container_of(kobj, struct device, kobj);
2391	struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2392	bool exists = true;
2393
2394	if (attr == &dev_attr_fan.attr)
2395		exists = (drv->fan_supported) ? true : false;
2396	else if (attr == &dev_attr_kbd_backlight_mode.attr)
2397		exists = (drv->kbd_illum_supported) ? true : false;
2398	else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2399		exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2400	else if (attr == &dev_attr_touchpad.attr)
2401		exists = (drv->touchpad_supported) ? true : false;
2402	else if (attr == &dev_attr_usb_sleep_charge.attr)
2403		exists = (drv->usb_sleep_charge_supported) ? true : false;
2404	else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2405		exists = (drv->usb_sleep_charge_supported) ? true : false;
2406	else if (attr == &dev_attr_usb_rapid_charge.attr)
2407		exists = (drv->usb_rapid_charge_supported) ? true : false;
2408	else if (attr == &dev_attr_usb_sleep_music.attr)
2409		exists = (drv->usb_sleep_music_supported) ? true : false;
2410	else if (attr == &dev_attr_kbd_function_keys.attr)
2411		exists = (drv->kbd_function_keys_supported) ? true : false;
2412	else if (attr == &dev_attr_panel_power_on.attr)
2413		exists = (drv->panel_power_on_supported) ? true : false;
2414	else if (attr == &dev_attr_usb_three.attr)
2415		exists = (drv->usb_three_supported) ? true : false;
2416	else if (attr == &dev_attr_cooling_method.attr)
2417		exists = (drv->cooling_method_supported) ? true : false;
2418
2419	return exists ? attr->mode : 0;
2420}
2421
2422static const struct attribute_group toshiba_attr_group = {
2423	.is_visible = toshiba_sysfs_is_visible,
2424	.attrs = toshiba_attributes,
2425};
2426
2427static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2428{
2429	struct acpi_device *acpi_dev = toshiba_acpi->acpi_dev;
2430
2431	/* Update the sysfs entries */
2432	if (sysfs_update_group(&acpi_dev->dev.kobj,
2433			       &toshiba_attr_group))
2434		pr_err("Unable to update sysfs entries\n");
2435
 
 
 
 
 
 
 
2436	/* Emulate the keyboard backlight event */
2437	acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
2438					dev_name(&acpi_dev->dev),
2439					0x92, 0);
2440}
2441
2442/*
2443 * IIO device
2444 */
2445
2446enum toshiba_iio_accel_chan {
2447	AXIS_X,
2448	AXIS_Y,
2449	AXIS_Z
2450};
2451
2452static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2453{
2454	u32 xyval, zval;
2455	int ret;
2456
2457	ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2458	if (ret < 0)
2459		return ret;
2460
2461	switch (chan) {
2462	case AXIS_X:
2463		return xyval & HCI_ACCEL_DIRECTION_MASK ?
2464			-(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2465	case AXIS_Y:
2466		return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2467			-((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2468			(xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2469	case AXIS_Z:
2470		return zval & HCI_ACCEL_DIRECTION_MASK ?
2471			-(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2472	}
2473
2474	return ret;
2475}
2476
2477static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2478				      struct iio_chan_spec const *chan,
2479				      int *val, int *val2, long mask)
2480{
2481	int ret;
2482
2483	switch (mask) {
2484	case IIO_CHAN_INFO_RAW:
2485		ret = toshiba_iio_accel_get_axis(chan->channel);
2486		if (ret == -EIO || ret == -ENODEV)
2487			return ret;
2488
2489		*val = ret;
2490
2491		return IIO_VAL_INT;
2492	}
2493
2494	return -EINVAL;
2495}
2496
2497#define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2498	.type = IIO_ACCEL, \
2499	.modified = 1, \
2500	.channel = chan, \
2501	.channel2 = IIO_MOD_##axis, \
2502	.output = 1, \
2503	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2504}
2505
2506static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2507	TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2508	TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2509	TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2510};
2511
2512static const struct iio_info toshiba_iio_accel_info = {
2513	.read_raw = &toshiba_iio_accel_read_raw,
2514};
2515
2516/*
2517 * Misc device
2518 */
2519static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2520{
2521	u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2522			      regs->edx, regs->esi, regs->edi };
2523	u32 out[TCI_WORDS];
2524	acpi_status status;
2525
2526	status = tci_raw(toshiba_acpi, in, out);
2527	if (ACPI_FAILURE(status)) {
2528		pr_err("ACPI call to query SMM registers failed\n");
2529		return -EIO;
2530	}
2531
2532	/* Fillout the SMM struct with the TCI call results */
2533	regs->eax = out[0];
2534	regs->ebx = out[1];
2535	regs->ecx = out[2];
2536	regs->edx = out[3];
2537	regs->esi = out[4];
2538	regs->edi = out[5];
2539
2540	return 0;
2541}
2542
2543static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2544			       unsigned long arg)
2545{
2546	SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2547	SMMRegisters regs;
2548	int ret;
2549
2550	if (!argp)
2551		return -EINVAL;
2552
2553	switch (cmd) {
2554	case TOSH_SMM:
2555		if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2556			return -EFAULT;
2557		ret = toshiba_acpi_smm_bridge(&regs);
2558		if (ret)
2559			return ret;
2560		if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2561			return -EFAULT;
2562		break;
2563	case TOSHIBA_ACPI_SCI:
2564		if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2565			return -EFAULT;
2566		/* Ensure we are being called with a SCI_{GET, SET} register */
2567		if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2568			return -EINVAL;
2569		if (!sci_open(toshiba_acpi))
2570			return -EIO;
2571		ret = toshiba_acpi_smm_bridge(&regs);
2572		sci_close(toshiba_acpi);
2573		if (ret)
2574			return ret;
2575		if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2576			return -EFAULT;
2577		break;
2578	default:
2579		return -EINVAL;
2580	}
2581
2582	return 0;
2583}
2584
2585static const struct file_operations toshiba_acpi_fops = {
2586	.owner		= THIS_MODULE,
2587	.unlocked_ioctl = toshiba_acpi_ioctl,
2588	.llseek		= noop_llseek,
2589};
2590
2591/*
2592 * WWAN RFKill handlers
2593 */
2594static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2595{
2596	struct toshiba_acpi_dev *dev = data;
2597	int ret;
2598
2599	ret = toshiba_wireless_status(dev);
2600	if (ret)
2601		return ret;
2602
2603	if (!dev->killswitch)
2604		return 0;
2605
2606	return toshiba_wwan_set(dev, !blocked);
2607}
2608
2609static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2610{
2611	struct toshiba_acpi_dev *dev = data;
2612
2613	if (toshiba_wireless_status(dev))
2614		return;
2615
2616	rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2617}
2618
2619static const struct rfkill_ops wwan_rfk_ops = {
2620	.set_block = toshiba_acpi_wwan_set_block,
2621	.poll = toshiba_acpi_wwan_poll,
2622};
2623
2624static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2625{
2626	int ret = toshiba_wireless_status(dev);
2627
2628	if (ret)
2629		return ret;
2630
2631	dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2632				     &dev->acpi_dev->dev,
2633				     RFKILL_TYPE_WWAN,
2634				     &wwan_rfk_ops,
2635				     dev);
2636	if (!dev->wwan_rfk) {
2637		pr_err("Unable to allocate WWAN rfkill device\n");
2638		return -ENOMEM;
2639	}
2640
2641	rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2642
2643	ret = rfkill_register(dev->wwan_rfk);
2644	if (ret) {
2645		pr_err("Unable to register WWAN rfkill device\n");
2646		rfkill_destroy(dev->wwan_rfk);
2647	}
2648
2649	return ret;
2650}
2651
2652/*
2653 * Hotkeys
2654 */
2655static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2656{
2657	acpi_status status;
2658	u32 result;
2659
2660	status = acpi_evaluate_object(dev->acpi_dev->handle,
2661				      "ENAB", NULL, NULL);
2662	if (ACPI_FAILURE(status))
2663		return -ENODEV;
2664
2665	/*
2666	 * Enable the "Special Functions" mode only if they are
2667	 * supported and if they are activated.
2668	 */
2669	if (dev->kbd_function_keys_supported && dev->special_functions)
2670		result = hci_write(dev, HCI_HOTKEY_EVENT,
2671				   HCI_HOTKEY_SPECIAL_FUNCTIONS);
2672	else
2673		result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2674
2675	if (result == TOS_FAILURE)
2676		return -EIO;
2677	else if (result == TOS_NOT_SUPPORTED)
2678		return -ENODEV;
2679
2680	return 0;
2681}
2682
2683static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2684				      struct serio *port)
2685{
2686	if (str & I8042_STR_AUXDATA)
2687		return false;
2688
2689	if (unlikely(data == 0xe0))
2690		return false;
2691
2692	if ((data & 0x7f) == TOS1900_FN_SCAN) {
2693		schedule_work(&toshiba_acpi->hotkey_work);
2694		return true;
2695	}
2696
2697	return false;
2698}
2699
2700static void toshiba_acpi_hotkey_work(struct work_struct *work)
2701{
2702	acpi_handle ec_handle = ec_get_handle();
2703	acpi_status status;
2704
2705	if (!ec_handle)
2706		return;
2707
2708	status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2709	if (ACPI_FAILURE(status))
2710		pr_err("ACPI NTFY method execution failed\n");
2711}
2712
2713/*
2714 * Returns hotkey scancode, or < 0 on failure.
2715 */
2716static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2717{
2718	unsigned long long value;
2719	acpi_status status;
2720
2721	status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2722				      NULL, &value);
2723	if (ACPI_FAILURE(status)) {
2724		pr_err("ACPI INFO method execution failed\n");
2725		return -EIO;
2726	}
2727
2728	return value;
2729}
2730
2731static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2732				       int scancode)
2733{
2734	if (scancode == 0x100)
2735		return;
2736
2737	/* Act on key press; ignore key release */
2738	if (scancode & 0x80)
2739		return;
2740
2741	if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2742		pr_info("Unknown key %x\n", scancode);
2743}
2744
2745static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2746{
2747	if (dev->info_supported) {
2748		int scancode = toshiba_acpi_query_hotkey(dev);
2749
2750		if (scancode < 0) {
2751			pr_err("Failed to query hotkey event\n");
2752		} else if (scancode != 0) {
2753			toshiba_acpi_report_hotkey(dev, scancode);
2754			dev->key_event_valid = 1;
2755			dev->last_key_event = scancode;
2756		}
2757	} else if (dev->system_event_supported) {
2758		u32 result;
2759		u32 value;
2760		int retries = 3;
2761
2762		do {
2763			result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2764			switch (result) {
2765			case TOS_SUCCESS:
2766				toshiba_acpi_report_hotkey(dev, (int)value);
2767				dev->key_event_valid = 1;
2768				dev->last_key_event = value;
2769				break;
2770			case TOS_NOT_SUPPORTED:
2771				/*
2772				 * This is a workaround for an unresolved
2773				 * issue on some machines where system events
2774				 * sporadically become disabled.
2775				 */
2776				result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2777				if (result == TOS_SUCCESS)
2778					pr_notice("Re-enabled hotkeys\n");
2779				/* Fall through */
2780			default:
2781				retries--;
2782				break;
2783			}
2784		} while (retries && result != TOS_FIFO_EMPTY);
2785	}
2786}
2787
2788static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2789{
2790	const struct key_entry *keymap = toshiba_acpi_keymap;
2791	acpi_handle ec_handle;
2792	int error;
2793
2794	if (disable_hotkeys) {
2795		pr_info("Hotkeys disabled by module parameter\n");
2796		return 0;
2797	}
2798
2799	if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2800		pr_info("WMI event detected, hotkeys will not be monitored\n");
2801		return 0;
2802	}
2803
2804	error = toshiba_acpi_enable_hotkeys(dev);
2805	if (error)
2806		return error;
2807
2808	if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2809		pr_notice("Unable to query Hotkey Event Type\n");
2810
2811	dev->hotkey_dev = input_allocate_device();
2812	if (!dev->hotkey_dev)
2813		return -ENOMEM;
2814
2815	dev->hotkey_dev->name = "Toshiba input device";
2816	dev->hotkey_dev->phys = "toshiba_acpi/input0";
2817	dev->hotkey_dev->id.bustype = BUS_HOST;
 
2818
2819	if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2820	    !dev->kbd_function_keys_supported)
2821		keymap = toshiba_acpi_keymap;
2822	else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2823		 dev->kbd_function_keys_supported)
2824		keymap = toshiba_acpi_alt_keymap;
2825	else
2826		pr_info("Unknown event type received %x\n",
2827			dev->hotkey_event_type);
2828	error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2829	if (error)
2830		goto err_free_dev;
2831
2832	/*
2833	 * For some machines the SCI responsible for providing hotkey
2834	 * notification doesn't fire. We can trigger the notification
2835	 * whenever the Fn key is pressed using the NTFY method, if
2836	 * supported, so if it's present set up an i8042 key filter
2837	 * for this purpose.
2838	 */
2839	ec_handle = ec_get_handle();
2840	if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2841		INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2842
2843		error = i8042_install_filter(toshiba_acpi_i8042_filter);
2844		if (error) {
2845			pr_err("Error installing key filter\n");
2846			goto err_free_dev;
2847		}
2848
2849		dev->ntfy_supported = 1;
2850	}
2851
2852	/*
2853	 * Determine hotkey query interface. Prefer using the INFO
2854	 * method when it is available.
2855	 */
2856	if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2857		dev->info_supported = 1;
2858	else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2859		dev->system_event_supported = 1;
2860
2861	if (!dev->info_supported && !dev->system_event_supported) {
2862		pr_warn("No hotkey query interface found\n");
 
2863		goto err_remove_filter;
2864	}
2865
2866	error = input_register_device(dev->hotkey_dev);
2867	if (error) {
2868		pr_info("Unable to register input device\n");
2869		goto err_remove_filter;
2870	}
2871
2872	return 0;
2873
2874 err_remove_filter:
2875	if (dev->ntfy_supported)
2876		i8042_remove_filter(toshiba_acpi_i8042_filter);
2877 err_free_dev:
2878	input_free_device(dev->hotkey_dev);
2879	dev->hotkey_dev = NULL;
2880	return error;
2881}
2882
2883static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2884{
2885	struct backlight_properties props;
2886	int brightness;
2887	int ret;
2888
2889	/*
2890	 * Some machines don't support the backlight methods at all, and
2891	 * others support it read-only. Either of these is pretty useless,
2892	 * so only register the backlight device if the backlight method
2893	 * supports both reads and writes.
2894	 */
2895	brightness = __get_lcd_brightness(dev);
2896	if (brightness < 0)
2897		return 0;
2898	/*
2899	 * If transflective backlight is supported and the brightness is zero
2900	 * (lowest brightness level), the set_lcd_brightness function will
2901	 * activate the transflective backlight, making the LCD appear to be
2902	 * turned off, simply increment the brightness level to avoid that.
2903	 */
2904	if (dev->tr_backlight_supported && brightness == 0)
2905		brightness++;
2906	ret = set_lcd_brightness(dev, brightness);
2907	if (ret) {
2908		pr_debug("Backlight method is read-only, disabling backlight support\n");
2909		return 0;
2910	}
2911
2912	/*
2913	 * Tell acpi-video-detect code to prefer vendor backlight on all
2914	 * systems with transflective backlight and on dmi matched systems.
2915	 */
2916	if (dev->tr_backlight_supported ||
2917	    dmi_check_system(toshiba_vendor_backlight_dmi))
2918		acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2919
2920	if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2921		return 0;
2922
2923	memset(&props, 0, sizeof(props));
2924	props.type = BACKLIGHT_PLATFORM;
2925	props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2926
2927	/* Adding an extra level and having 0 change to transflective mode */
2928	if (dev->tr_backlight_supported)
2929		props.max_brightness++;
2930
2931	dev->backlight_dev = backlight_device_register("toshiba",
2932						       &dev->acpi_dev->dev,
2933						       dev,
2934						       &toshiba_backlight_data,
2935						       &props);
2936	if (IS_ERR(dev->backlight_dev)) {
2937		ret = PTR_ERR(dev->backlight_dev);
2938		pr_err("Could not register toshiba backlight device\n");
2939		dev->backlight_dev = NULL;
2940		return ret;
2941	}
2942
2943	dev->backlight_dev->props.brightness = brightness;
2944	return 0;
2945}
2946
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2947static void print_supported_features(struct toshiba_acpi_dev *dev)
2948{
2949	pr_info("Supported laptop features:");
2950
2951	if (dev->hotkey_dev)
2952		pr_cont(" hotkeys");
2953	if (dev->backlight_dev)
2954		pr_cont(" backlight");
2955	if (dev->video_supported)
2956		pr_cont(" video-out");
2957	if (dev->fan_supported)
2958		pr_cont(" fan");
 
 
2959	if (dev->tr_backlight_supported)
2960		pr_cont(" transflective-backlight");
2961	if (dev->illumination_supported)
2962		pr_cont(" illumination");
2963	if (dev->kbd_illum_supported)
2964		pr_cont(" keyboard-backlight");
2965	if (dev->touchpad_supported)
2966		pr_cont(" touchpad");
2967	if (dev->eco_supported)
2968		pr_cont(" eco-led");
2969	if (dev->accelerometer_supported)
2970		pr_cont(" accelerometer-axes");
2971	if (dev->usb_sleep_charge_supported)
2972		pr_cont(" usb-sleep-charge");
2973	if (dev->usb_rapid_charge_supported)
2974		pr_cont(" usb-rapid-charge");
2975	if (dev->usb_sleep_music_supported)
2976		pr_cont(" usb-sleep-music");
2977	if (dev->kbd_function_keys_supported)
2978		pr_cont(" special-function-keys");
2979	if (dev->panel_power_on_supported)
2980		pr_cont(" panel-power-on");
2981	if (dev->usb_three_supported)
2982		pr_cont(" usb3");
2983	if (dev->wwan_supported)
2984		pr_cont(" wwan");
2985	if (dev->cooling_method_supported)
2986		pr_cont(" cooling-method");
 
 
2987
2988	pr_cont("\n");
2989}
2990
2991static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2992{
2993	struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2994
2995	misc_deregister(&dev->miscdev);
2996
2997	remove_toshiba_proc_entries(dev);
2998
 
 
 
 
 
2999	if (dev->accelerometer_supported && dev->indio_dev) {
3000		iio_device_unregister(dev->indio_dev);
3001		iio_device_free(dev->indio_dev);
3002	}
3003
3004	if (dev->sysfs_created)
3005		sysfs_remove_group(&dev->acpi_dev->dev.kobj,
3006				   &toshiba_attr_group);
3007
3008	if (dev->ntfy_supported) {
3009		i8042_remove_filter(toshiba_acpi_i8042_filter);
3010		cancel_work_sync(&dev->hotkey_work);
3011	}
3012
3013	if (dev->hotkey_dev)
3014		input_unregister_device(dev->hotkey_dev);
3015
3016	backlight_device_unregister(dev->backlight_dev);
3017
3018	if (dev->illumination_led_registered)
3019		led_classdev_unregister(&dev->led_dev);
3020
3021	if (dev->kbd_led_registered)
3022		led_classdev_unregister(&dev->kbd_led);
3023
3024	if (dev->eco_led_registered)
3025		led_classdev_unregister(&dev->eco_led);
3026
3027	if (dev->wwan_rfk) {
3028		rfkill_unregister(dev->wwan_rfk);
3029		rfkill_destroy(dev->wwan_rfk);
3030	}
3031
 
 
 
3032	if (toshiba_acpi)
3033		toshiba_acpi = NULL;
3034
3035	kfree(dev);
3036
3037	return 0;
3038}
3039
3040static const char *find_hci_method(acpi_handle handle)
3041{
3042	if (acpi_has_method(handle, "GHCI"))
3043		return "GHCI";
3044
3045	if (acpi_has_method(handle, "SPFC"))
3046		return "SPFC";
3047
3048	return NULL;
3049}
3050
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
3051static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3052{
3053	struct toshiba_acpi_dev *dev;
3054	const char *hci_method;
3055	u32 dummy;
3056	int ret = 0;
3057
3058	if (toshiba_acpi)
3059		return -EBUSY;
3060
3061	pr_info("Toshiba Laptop ACPI Extras version %s\n",
3062	       TOSHIBA_ACPI_VERSION);
3063
3064	hci_method = find_hci_method(acpi_dev->handle);
3065	if (!hci_method) {
3066		pr_err("HCI interface not found\n");
3067		return -ENODEV;
3068	}
3069
3070	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3071	if (!dev)
3072		return -ENOMEM;
3073	dev->acpi_dev = acpi_dev;
3074	dev->method_hci = hci_method;
3075	dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3076	dev->miscdev.name = "toshiba_acpi";
3077	dev->miscdev.fops = &toshiba_acpi_fops;
3078
3079	ret = misc_register(&dev->miscdev);
3080	if (ret) {
3081		pr_err("Failed to register miscdevice\n");
3082		kfree(dev);
3083		return ret;
3084	}
3085
3086	acpi_dev->driver_data = dev;
3087	dev_set_drvdata(&acpi_dev->dev, dev);
3088
3089	/* Query the BIOS for supported features */
3090
3091	/*
3092	 * The "Special Functions" are always supported by the laptops
3093	 * with the new keyboard layout, query for its presence to help
3094	 * determine the keymap layout to use.
3095	 */
3096	ret = toshiba_function_keys_get(dev, &dev->special_functions);
3097	dev->kbd_function_keys_supported = !ret;
3098
3099	dev->hotkey_event_type = 0;
3100	if (toshiba_acpi_setup_keyboard(dev))
3101		pr_info("Unable to activate hotkeys\n");
3102
3103	/* Determine whether or not BIOS supports transflective backlight */
3104	ret = get_tr_backlight_status(dev, &dummy);
3105	dev->tr_backlight_supported = !ret;
3106
3107	ret = toshiba_acpi_setup_backlight(dev);
3108	if (ret)
3109		goto error;
3110
3111	toshiba_illumination_available(dev);
3112	if (dev->illumination_supported) {
3113		dev->led_dev.name = "toshiba::illumination";
3114		dev->led_dev.max_brightness = 1;
3115		dev->led_dev.brightness_set = toshiba_illumination_set;
3116		dev->led_dev.brightness_get = toshiba_illumination_get;
3117		if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3118			dev->illumination_led_registered = true;
3119	}
3120
3121	toshiba_eco_mode_available(dev);
3122	if (dev->eco_supported) {
3123		dev->eco_led.name = "toshiba::eco_mode";
3124		dev->eco_led.max_brightness = 1;
3125		dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3126		dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3127		if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3128			dev->eco_led_registered = true;
3129	}
3130
3131	toshiba_kbd_illum_available(dev);
3132	/*
3133	 * Only register the LED if KBD illumination is supported
3134	 * and the keyboard backlight operation mode is set to FN-Z
 
3135	 */
3136	if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
 
3137		dev->kbd_led.name = "toshiba::kbd_backlight";
 
3138		dev->kbd_led.max_brightness = 1;
3139		dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3140		dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3141		if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3142			dev->kbd_led_registered = true;
3143	}
3144
3145	ret = toshiba_touchpad_get(dev, &dummy);
3146	dev->touchpad_supported = !ret;
3147
3148	toshiba_accelerometer_available(dev);
3149	if (dev->accelerometer_supported) {
3150		dev->indio_dev = iio_device_alloc(sizeof(*dev));
3151		if (!dev->indio_dev) {
3152			pr_err("Unable to allocate iio device\n");
3153			goto iio_error;
3154		}
3155
3156		pr_info("Registering Toshiba accelerometer iio device\n");
3157
3158		dev->indio_dev->info = &toshiba_iio_accel_info;
3159		dev->indio_dev->name = "Toshiba accelerometer";
3160		dev->indio_dev->dev.parent = &acpi_dev->dev;
3161		dev->indio_dev->modes = INDIO_DIRECT_MODE;
3162		dev->indio_dev->channels = toshiba_iio_accel_channels;
3163		dev->indio_dev->num_channels =
3164					ARRAY_SIZE(toshiba_iio_accel_channels);
3165
3166		ret = iio_device_register(dev->indio_dev);
3167		if (ret < 0) {
3168			pr_err("Unable to register iio device\n");
3169			iio_device_free(dev->indio_dev);
3170		}
3171	}
3172iio_error:
3173
3174	toshiba_usb_sleep_charge_available(dev);
3175
3176	ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3177	dev->usb_rapid_charge_supported = !ret;
3178
3179	ret = toshiba_usb_sleep_music_get(dev, &dummy);
3180	dev->usb_sleep_music_supported = !ret;
3181
3182	ret = toshiba_panel_power_on_get(dev, &dummy);
3183	dev->panel_power_on_supported = !ret;
3184
3185	ret = toshiba_usb_three_get(dev, &dummy);
3186	dev->usb_three_supported = !ret;
3187
3188	ret = get_video_status(dev, &dummy);
3189	dev->video_supported = !ret;
3190
3191	ret = get_fan_status(dev, &dummy);
3192	dev->fan_supported = !ret;
3193
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
3194	toshiba_wwan_available(dev);
3195	if (dev->wwan_supported)
3196		toshiba_acpi_setup_wwan_rfkill(dev);
3197
3198	toshiba_cooling_method_available(dev);
3199
 
 
3200	print_supported_features(dev);
3201
3202	ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3203				 &toshiba_attr_group);
3204	if (ret) {
3205		dev->sysfs_created = 0;
3206		goto error;
3207	}
3208	dev->sysfs_created = !ret;
3209
3210	create_toshiba_proc_entries(dev);
3211
3212	toshiba_acpi = dev;
3213
 
 
 
 
 
 
 
3214	return 0;
3215
3216error:
3217	toshiba_acpi_remove(acpi_dev);
3218	return ret;
3219}
3220
3221static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3222{
3223	struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3224
3225	switch (event) {
3226	case 0x80: /* Hotkeys and some system events */
3227		/*
3228		 * Machines with this WMI GUID aren't supported due to bugs in
3229		 * their AML.
3230		 *
3231		 * Return silently to avoid triggering a netlink event.
3232		 */
3233		if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3234			return;
3235		toshiba_acpi_process_hotkeys(dev);
3236		break;
3237	case 0x81: /* Dock events */
3238	case 0x82:
3239	case 0x83:
3240		pr_info("Dock event received %x\n", event);
3241		break;
3242	case 0x88: /* Thermal events */
3243		pr_info("Thermal event received\n");
3244		break;
3245	case 0x8f: /* LID closed */
3246	case 0x90: /* LID is closed and Dock has been ejected */
3247		break;
3248	case 0x8c: /* SATA power events */
3249	case 0x8b:
3250		pr_info("SATA power event received %x\n", event);
3251		break;
3252	case 0x92: /* Keyboard backlight mode changed */
3253		toshiba_acpi->kbd_event_generated = true;
3254		/* Update sysfs entries */
3255		if (sysfs_update_group(&acpi_dev->dev.kobj,
3256				       &toshiba_attr_group))
3257			pr_err("Unable to update sysfs entries\n");
 
 
 
 
 
3258		break;
3259	case 0x85: /* Unknown */
3260	case 0x8d: /* Unknown */
3261	case 0x8e: /* Unknown */
3262	case 0x94: /* Unknown */
3263	case 0x95: /* Unknown */
3264	default:
3265		pr_info("Unknown event received %x\n", event);
3266		break;
3267	}
3268
3269	acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3270					dev_name(&acpi_dev->dev),
3271					event, (event == 0x80) ?
3272					dev->last_key_event : 0);
3273}
3274
3275#ifdef CONFIG_PM_SLEEP
3276static int toshiba_acpi_suspend(struct device *device)
3277{
3278	struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3279
3280	if (dev->hotkey_dev) {
3281		u32 result;
3282
3283		result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3284		if (result != TOS_SUCCESS)
3285			pr_info("Unable to disable hotkeys\n");
3286	}
3287
3288	return 0;
3289}
3290
3291static int toshiba_acpi_resume(struct device *device)
3292{
3293	struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3294
3295	if (dev->hotkey_dev) {
3296		if (toshiba_acpi_enable_hotkeys(dev))
3297			pr_info("Unable to re-enable hotkeys\n");
3298	}
3299
3300	if (dev->wwan_rfk) {
3301		if (!toshiba_wireless_status(dev))
3302			rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3303	}
 
 
 
3304
3305	return 0;
3306}
3307#endif
3308
3309static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3310			 toshiba_acpi_suspend, toshiba_acpi_resume);
3311
3312static struct acpi_driver toshiba_acpi_driver = {
3313	.name	= "Toshiba ACPI driver",
3314	.owner	= THIS_MODULE,
3315	.ids	= toshiba_device_ids,
3316	.flags	= ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3317	.ops	= {
3318		.add		= toshiba_acpi_add,
3319		.remove		= toshiba_acpi_remove,
3320		.notify		= toshiba_acpi_notify,
3321	},
3322	.drv.pm	= &toshiba_acpi_pm,
3323};
3324
3325static int __init toshiba_acpi_init(void)
3326{
3327	int ret;
3328
3329	toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3330	if (!toshiba_proc_dir) {
3331		pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3332		return -ENODEV;
3333	}
3334
3335	ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3336	if (ret) {
3337		pr_err("Failed to register ACPI driver: %d\n", ret);
3338		remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3339	}
3340
3341	return ret;
3342}
3343
3344static void __exit toshiba_acpi_exit(void)
3345{
3346	acpi_bus_unregister_driver(&toshiba_acpi_driver);
3347	if (toshiba_proc_dir)
3348		remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3349}
3350
3351module_init(toshiba_acpi_init);
3352module_exit(toshiba_acpi_exit);