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[linux-2.6-block.git] / drivers / platform / x86 / toshiba_acpi.c
CommitLineData
1da177e4
LT		 1/*
2 * toshiba_acpi.c - Toshiba Laptop ACPI Extras
3 *
4 *
5 * Copyright (C) 2002-2004 John Belmonte
c41a40c5 6 * Copyright (C) 2008 Philip Langdale
6c3f6e6c 7 * Copyright (C) 2010 Pierre Ducroquet
548c4306 8 * Copyright (C) 2014 Azael Avalos
1da177e4
LT		 9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 *
25 * The devolpment page for this driver is located at
26 * http://memebeam.org/toys/ToshibaAcpiDriver.
27 *
28 * Credits:
29 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
30 * engineering the Windows drivers
31 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
32 * Rob Miller - TV out and hotkeys help
33 *
34 *
35 * TODO
36 *
37 */
38
7e33460d
JP		 39#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
40
548c4306 41#define TOSHIBA_ACPI_VERSION "0.20"
1da177e4
LT		 42#define PROC_INTERFACE_VERSION 1
43
44#include <linux/kernel.h>
45#include <linux/module.h>
46#include <linux/init.h>
47#include <linux/types.h>
48#include <linux/proc_fs.h>
936c8bcd 49#include <linux/seq_file.h>
c9263557 50#include <linux/backlight.h>
c41a40c5 51#include <linux/rfkill.h>
6335e4d5 52#include <linux/input.h>
384a7cd9 53#include <linux/input/sparse-keymap.h>
6c3f6e6c 54#include <linux/leds.h>
5a0e3ad6 55#include <linux/slab.h>
29cd293f
SF		 56#include <linux/workqueue.h>
57#include <linux/i8042.h>
8b48463f 58#include <linux/acpi.h>
fe808bfb 59#include <linux/dmi.h>
1da177e4
LT		 60#include <asm/uaccess.h>
61
1da177e4
LT		 62MODULE_AUTHOR("John Belmonte");
63MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
64MODULE_LICENSE("GPL");
65
f11f999e
SF		 66#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
67
29cd293f
SF		 68/* Scan code for Fn key on TOS1900 models */
69#define TOS1900_FN_SCAN 0x6e
70
1da177e4 71/* Toshiba ACPI method paths */
1da177e4
LT		 72#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
73
74/* Toshiba HCI interface definitions
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.
ea6b31f4 82 *
84a6273f
AA		 83 * SCI stands for "System Configuration Interface" which aim is to
84 * conceal differences in hardware between different models.
1da177e4
LT		 85 */
86
87#define HCI_WORDS 6
88
89/* operations */
90#define HCI_SET 0xff00
91#define HCI_GET 0xfe00
84a6273f
AA		 92#define SCI_OPEN 0xf100
93#define SCI_CLOSE 0xf200
94#define SCI_GET 0xf300
95#define SCI_SET 0xf400
1da177e4
LT		 96
97/* return codes */
98#define HCI_SUCCESS 0x0000
99#define HCI_FAILURE 0x1000
100#define HCI_NOT_SUPPORTED 0x8000
101#define HCI_EMPTY 0x8c00
5a2813e9
AA		 102#define HCI_DATA_NOT_AVAILABLE 0x8d20
103#define HCI_NOT_INITIALIZED 0x8d50
84a6273f
AA		 104#define SCI_OPEN_CLOSE_OK 0x0044
105#define SCI_ALREADY_OPEN 0x8100
106#define SCI_NOT_OPENED 0x8200
fdb79081 107#define SCI_INPUT_DATA_ERROR 0x8300
84a6273f 108#define SCI_NOT_PRESENT 0x8600
1da177e4
LT		 109
110/* registers */
111#define HCI_FAN 0x0004
121b7b0d 112#define HCI_TR_BACKLIGHT 0x0005
1da177e4
LT		 113#define HCI_SYSTEM_EVENT 0x0016
114#define HCI_VIDEO_OUT 0x001c
115#define HCI_HOTKEY_EVENT 0x001e
116#define HCI_LCD_BRIGHTNESS 0x002a
c41a40c5 117#define HCI_WIRELESS 0x0056
5a2813e9 118#define HCI_ACCELEROMETER 0x006d
360f0f39 119#define HCI_KBD_ILLUMINATION 0x0095
def6c4e2 120#define HCI_ECO_MODE 0x0097
5a2813e9 121#define HCI_ACCELEROMETER2 0x00a6
fdb79081 122#define SCI_ILLUMINATION 0x014e
360f0f39 123#define SCI_KBD_ILLUM_STATUS 0x015c
9d8658ac 124#define SCI_TOUCHPAD 0x050e
1da177e4
LT		 125
126/* field definitions */
5a2813e9 127#define HCI_ACCEL_MASK 0x7fff
29cd293f
SF		 128#define HCI_HOTKEY_DISABLE 0x0b
129#define HCI_HOTKEY_ENABLE 0x09
1da177e4
LT		 130#define HCI_LCD_BRIGHTNESS_BITS 3
131#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
132#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
360f0f39 133#define HCI_MISC_SHIFT 0x10
1da177e4
LT		 134#define HCI_VIDEO_OUT_LCD 0x1
135#define HCI_VIDEO_OUT_CRT 0x2
136#define HCI_VIDEO_OUT_TV 0x4
c41a40c5 137#define HCI_WIRELESS_KILL_SWITCH 0x01
138#define HCI_WIRELESS_BT_PRESENT 0x0f
139#define HCI_WIRELESS_BT_ATTACH 0x40
140#define HCI_WIRELESS_BT_POWER 0x80
360f0f39
AA		 141#define SCI_KBD_MODE_FNZ 0x1
142#define SCI_KBD_MODE_AUTO 0x2
1da177e4 143
135740de
SF		 144struct toshiba_acpi_dev {
145 struct acpi_device *acpi_dev;
146 const char *method_hci;
147 struct rfkill *bt_rfk;
148 struct input_dev *hotkey_dev;
29cd293f 149 struct work_struct hotkey_work;
135740de
SF		 150 struct backlight_device *backlight_dev;
151 struct led_classdev led_dev;
360f0f39 152 struct led_classdev kbd_led;
def6c4e2 153 struct led_classdev eco_led;
36d03f93 154
135740de
SF		 155 int force_fan;
156 int last_key_event;
157 int key_event_valid;
360f0f39
AA		 158 int kbd_mode;
159 int kbd_time;
135740de 160
592b746c
DC		 161 unsigned int illumination_supported:1;
162 unsigned int video_supported:1;
163 unsigned int fan_supported:1;
164 unsigned int system_event_supported:1;
29cd293f
SF		 165 unsigned int ntfy_supported:1;
166 unsigned int info_supported:1;
121b7b0d 167 unsigned int tr_backlight_supported:1;
360f0f39
AA		 168 unsigned int kbd_illum_supported:1;
169 unsigned int kbd_led_registered:1;
9d8658ac 170 unsigned int touchpad_supported:1;
def6c4e2 171 unsigned int eco_supported:1;
5a2813e9 172 unsigned int accelerometer_supported:1;
360f0f39 173 unsigned int sysfs_created:1;
36d03f93 174
135740de
SF		 175 struct mutex mutex;
176};
177
29cd293f
SF		 178static struct toshiba_acpi_dev *toshiba_acpi;
179
4db42c51 180static const struct acpi_device_id toshiba_device_ids[] = {
181 {"TOS6200", 0},
c41a40c5 182 {"TOS6208", 0},
4db42c51 183 {"TOS1900", 0},
184 {"", 0},
185};
186MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
187
b859f159 188static const struct key_entry toshiba_acpi_keymap[] = {
fec278a1 189 { KE_KEY, 0x9e, { KEY_RFKILL } },
384a7cd9
DT		 190 { KE_KEY, 0x101, { KEY_MUTE } },
191 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
192 { KE_KEY, 0x103, { KEY_ZOOMIN } },
af502837
AA		 193 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
194 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
384a7cd9
DT		 195 { KE_KEY, 0x13b, { KEY_COFFEE } },
196 { KE_KEY, 0x13c, { KEY_BATTERY } },
197 { KE_KEY, 0x13d, { KEY_SLEEP } },
198 { KE_KEY, 0x13e, { KEY_SUSPEND } },
199 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
200 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
201 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
202 { KE_KEY, 0x142, { KEY_WLAN } },
af502837 203 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
a49010f5 204 { KE_KEY, 0x17f, { KEY_FN } },
384a7cd9
DT		 205 { KE_KEY, 0xb05, { KEY_PROG2 } },
206 { KE_KEY, 0xb06, { KEY_WWW } },
207 { KE_KEY, 0xb07, { KEY_MAIL } },
208 { KE_KEY, 0xb30, { KEY_STOP } },
209 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
210 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
211 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
212 { KE_KEY, 0xb5a, { KEY_MEDIA } },
af502837 213 { KE_IGNORE, 0x1430, { KEY_RESERVED } },
384a7cd9 214 { KE_END, 0 },
6335e4d5
MG		 215};
216
fe808bfb
TI		 217/* alternative keymap */
218static const struct dmi_system_id toshiba_alt_keymap_dmi[] = {
219 {
220 .matches = {
221 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
222 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite M840"),
223 },
224 },
e6efad7f
AA		 225 {
226 .matches = {
227 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
228 DMI_MATCH(DMI_PRODUCT_NAME, "Qosmio X75-A"),
229 },
230 },
fe808bfb
TI		 231 {}
232};
233
234static const struct key_entry toshiba_acpi_alt_keymap[] = {
235 { KE_KEY, 0x157, { KEY_MUTE } },
236 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
237 { KE_KEY, 0x103, { KEY_ZOOMIN } },
e6efad7f 238 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
fe808bfb
TI		 239 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
240 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
241 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
242 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
243 { KE_KEY, 0x158, { KEY_WLAN } },
244 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
245 { KE_END, 0 },
246};
247
1da177e4
LT		 248/* utility
249 */
250
4be44fcd 251static __inline__ void _set_bit(u32 * word, u32 mask, int value)
1da177e4
LT		 252{
253 *word = (*word & ~mask) | (mask * value);
254}
255
256/* acpi interface wrappers
257 */
258
4be44fcd 259static int write_acpi_int(const char *methodName, int val)
1da177e4 260{
1da177e4
LT		 261 acpi_status status;
262
619400da 263 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
32bcd5cb 264 return (status == AE_OK) ? 0 : -EIO;
1da177e4
LT		 265}
266
1da177e4
LT		 267/* Perform a raw HCI call. Here we don't care about input or output buffer
268 * format.
269 */
135740de
SF		 270static acpi_status hci_raw(struct toshiba_acpi_dev *dev,
271 const u32 in[HCI_WORDS], u32 out[HCI_WORDS])
1da177e4
LT		 272{
273 struct acpi_object_list params;
274 union acpi_object in_objs[HCI_WORDS];
275 struct acpi_buffer results;
4be44fcd 276 union acpi_object out_objs[HCI_WORDS + 1];
1da177e4
LT		 277 acpi_status status;
278 int i;
279
280 params.count = HCI_WORDS;
281 params.pointer = in_objs;
282 for (i = 0; i < HCI_WORDS; ++i) {
283 in_objs[i].type = ACPI_TYPE_INTEGER;
284 in_objs[i].integer.value = in[i];
285 }
286
287 results.length = sizeof(out_objs);
288 results.pointer = out_objs;
289
6e02cc7e
SF		 290 status = acpi_evaluate_object(dev->acpi_dev->handle,
291 (char *)dev->method_hci, &params,
4be44fcd 292 &results);
1da177e4
LT		 293 if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) {
294 for (i = 0; i < out_objs->package.count; ++i) {
295 out[i] = out_objs->package.elements[i].integer.value;
296 }
297 }
298
299 return status;
300}
301
c41a40c5 302/* common hci tasks (get or set one or two value)
1da177e4
LT		 303 *
304 * In addition to the ACPI status, the HCI system returns a result which
305 * may be useful (such as "not supported").
306 */
307
135740de
SF		 308static acpi_status hci_write1(struct toshiba_acpi_dev *dev, u32 reg,
309 u32 in1, u32 *result)
1da177e4
LT		 310{
311 u32 in[HCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
312 u32 out[HCI_WORDS];
135740de 313 acpi_status status = hci_raw(dev, in, out);
1da177e4
LT		 314 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
315 return status;
316}
317
135740de
SF		 318static acpi_status hci_read1(struct toshiba_acpi_dev *dev, u32 reg,
319 u32 *out1, u32 *result)
1da177e4
LT		 320{
321 u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
322 u32 out[HCI_WORDS];
135740de 323 acpi_status status = hci_raw(dev, in, out);
1da177e4
LT		 324 *out1 = out[2];
325 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
326 return status;
327}
328
135740de
SF		 329static acpi_status hci_write2(struct toshiba_acpi_dev *dev, u32 reg,
330 u32 in1, u32 in2, u32 *result)
c41a40c5 331{
332 u32 in[HCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 };
333 u32 out[HCI_WORDS];
135740de 334 acpi_status status = hci_raw(dev, in, out);
c41a40c5 335 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
336 return status;
337}
338
135740de
SF		 339static acpi_status hci_read2(struct toshiba_acpi_dev *dev, u32 reg,
340 u32 *out1, u32 *out2, u32 *result)
c41a40c5 341{
342 u32 in[HCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 };
343 u32 out[HCI_WORDS];
135740de 344 acpi_status status = hci_raw(dev, in, out);
c41a40c5 345 *out1 = out[2];
346 *out2 = out[3];
347 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
348 return status;
349}
350
84a6273f
AA		 351/* common sci tasks
352 */
353
354static int sci_open(struct toshiba_acpi_dev *dev)
355{
356 u32 in[HCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
357 u32 out[HCI_WORDS];
358 acpi_status status;
359
360 status = hci_raw(dev, in, out);
361 if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
362 pr_err("ACPI call to open SCI failed\n");
363 return 0;
364 }
365
366 if (out[0] == SCI_OPEN_CLOSE_OK) {
367 return 1;
368 } else if (out[0] == SCI_ALREADY_OPEN) {
369 pr_info("Toshiba SCI already opened\n");
370 return 1;
371 } else if (out[0] == SCI_NOT_PRESENT) {
372 pr_info("Toshiba SCI is not present\n");
373 }
374
375 return 0;
376}
377
378static void sci_close(struct toshiba_acpi_dev *dev)
379{
380 u32 in[HCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
381 u32 out[HCI_WORDS];
382 acpi_status status;
383
384 status = hci_raw(dev, in, out);
385 if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
386 pr_err("ACPI call to close SCI failed\n");
387 return;
388 }
389
390 if (out[0] == SCI_OPEN_CLOSE_OK)
391 return;
392 else if (out[0] == SCI_NOT_OPENED)
393 pr_info("Toshiba SCI not opened\n");
394 else if (out[0] == SCI_NOT_PRESENT)
395 pr_info("Toshiba SCI is not present\n");
396}
397
398static acpi_status sci_read(struct toshiba_acpi_dev *dev, u32 reg,
399 u32 *out1, u32 *result)
400{
401 u32 in[HCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
402 u32 out[HCI_WORDS];
403 acpi_status status = hci_raw(dev, in, out);
404 *out1 = out[2];
405 *result = (ACPI_SUCCESS(status)) ? out[0] : HCI_FAILURE;
406 return status;
407}
408
409static acpi_status sci_write(struct toshiba_acpi_dev *dev, u32 reg,
410 u32 in1, u32 *result)
411{
412 u32 in[HCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
413 u32 out[HCI_WORDS];
414 acpi_status status = hci_raw(dev, in, out);
415 *result = (ACPI_SUCCESS(status)) ? out[0] : HCI_FAILURE;
416 return status;
417}
418
6c3f6e6c 419/* Illumination support */
135740de 420static int toshiba_illumination_available(struct toshiba_acpi_dev *dev)
6c3f6e6c 421{
fdb79081 422 u32 in[HCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
6c3f6e6c
PD		 423 u32 out[HCI_WORDS];
424 acpi_status status;
425
fdb79081
AA		 426 if (!sci_open(dev))
427 return 0;
428
135740de 429 status = hci_raw(dev, in, out);
fdb79081
AA		 430 sci_close(dev);
431 if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
432 pr_err("ACPI call to query Illumination support failed\n");
433 return 0;
434 } else if (out[0] == HCI_NOT_SUPPORTED || out[1] != 1) {
7e33460d 435 pr_info("Illumination device not available\n");
6c3f6e6c
PD		 436 return 0;
437 }
fdb79081 438
6c3f6e6c
PD		 439 return 1;
440}
441
442static void toshiba_illumination_set(struct led_classdev *cdev,
443 enum led_brightness brightness)
444{
135740de
SF		 445 struct toshiba_acpi_dev *dev = container_of(cdev,
446 struct toshiba_acpi_dev, led_dev);
fdb79081 447 u32 state, result;
6c3f6e6c
PD		 448 acpi_status status;
449
450 /* First request : initialize communication. */
fdb79081 451 if (!sci_open(dev))
6c3f6e6c 452 return;
6c3f6e6c 453
fdb79081
AA		 454 /* Switch the illumination on/off */
455 state = brightness ? 1 : 0;
456 status = sci_write(dev, SCI_ILLUMINATION, state, &result);
457 sci_close(dev);
458 if (ACPI_FAILURE(status)) {
459 pr_err("ACPI call for illumination failed\n");
460 return;
461 } else if (result == HCI_NOT_SUPPORTED) {
462 pr_info("Illumination not supported\n");
463 return;
6c3f6e6c 464 }
6c3f6e6c
PD		 465}
466
467static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
468{
135740de
SF		 469 struct toshiba_acpi_dev *dev = container_of(cdev,
470 struct toshiba_acpi_dev, led_dev);
fdb79081 471 u32 state, result;
6c3f6e6c 472 acpi_status status;
6c3f6e6c
PD		 473
474 /* First request : initialize communication. */
fdb79081 475 if (!sci_open(dev))
6c3f6e6c 476 return LED_OFF;
6c3f6e6c
PD		 477
478 /* Check the illumination */
fdb79081
AA		 479 status = sci_read(dev, SCI_ILLUMINATION, &state, &result);
480 sci_close(dev);
481 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
482 pr_err("ACPI call for illumination failed\n");
483 return LED_OFF;
484 } else if (result == HCI_NOT_SUPPORTED) {
485 pr_info("Illumination not supported\n");
6c3f6e6c
PD		 486 return LED_OFF;
487 }
488
fdb79081 489 return state ? LED_FULL : LED_OFF;
6c3f6e6c 490}
ea6b31f4 491
360f0f39
AA		 492/* KBD Illumination */
493static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
494{
495 u32 result;
496 acpi_status status;
497
498 if (!sci_open(dev))
499 return -EIO;
500
501 status = sci_write(dev, SCI_KBD_ILLUM_STATUS, time, &result);
502 sci_close(dev);
503 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
504 pr_err("ACPI call to set KBD backlight status failed\n");
505 return -EIO;
506 } else if (result == HCI_NOT_SUPPORTED) {
507 pr_info("Keyboard backlight status not supported\n");
508 return -ENODEV;
509 }
510
511 return 0;
512}
513
514static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
515{
516 u32 result;
517 acpi_status status;
518
519 if (!sci_open(dev))
520 return -EIO;
521
522 status = sci_read(dev, SCI_KBD_ILLUM_STATUS, time, &result);
523 sci_close(dev);
524 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
525 pr_err("ACPI call to get KBD backlight status failed\n");
526 return -EIO;
527 } else if (result == HCI_NOT_SUPPORTED) {
528 pr_info("Keyboard backlight status not supported\n");
529 return -ENODEV;
530 }
531
532 return 0;
533}
534
535static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
536{
537 struct toshiba_acpi_dev *dev = container_of(cdev,
538 struct toshiba_acpi_dev, kbd_led);
539 u32 state, result;
540 acpi_status status;
541
542 /* Check the keyboard backlight state */
543 status = hci_read1(dev, HCI_KBD_ILLUMINATION, &state, &result);
544 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
545 pr_err("ACPI call to get the keyboard backlight failed\n");
546 return LED_OFF;
547 } else if (result == HCI_NOT_SUPPORTED) {
548 pr_info("Keyboard backlight not supported\n");
549 return LED_OFF;
550 }
551
552 return state ? LED_FULL : LED_OFF;
553}
554
555static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
556 enum led_brightness brightness)
557{
558 struct toshiba_acpi_dev *dev = container_of(cdev,
559 struct toshiba_acpi_dev, kbd_led);
560 u32 state, result;
561 acpi_status status;
562
563 /* Set the keyboard backlight state */
564 state = brightness ? 1 : 0;
565 status = hci_write1(dev, HCI_KBD_ILLUMINATION, state, &result);
566 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
567 pr_err("ACPI call to set KBD Illumination mode failed\n");
568 return;
569 } else if (result == HCI_NOT_SUPPORTED) {
570 pr_info("Keyboard backlight not supported\n");
571 return;
572 }
573}
ea6b31f4 574
9d8658ac
AA		 575/* TouchPad support */
576static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
577{
578 u32 result;
579 acpi_status status;
580
581 if (!sci_open(dev))
582 return -EIO;
583
584 status = sci_write(dev, SCI_TOUCHPAD, state, &result);
585 sci_close(dev);
586 if (ACPI_FAILURE(status)) {
587 pr_err("ACPI call to set the touchpad failed\n");
588 return -EIO;
589 } else if (result == HCI_NOT_SUPPORTED) {
590 return -ENODEV;
591 }
592
593 return 0;
594}
595
596static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
597{
598 u32 result;
599 acpi_status status;
600
601 if (!sci_open(dev))
602 return -EIO;
603
604 status = sci_read(dev, SCI_TOUCHPAD, state, &result);
605 sci_close(dev);
606 if (ACPI_FAILURE(status)) {
607 pr_err("ACPI call to query the touchpad failed\n");
608 return -EIO;
609 } else if (result == HCI_NOT_SUPPORTED) {
610 return -ENODEV;
611 }
612
613 return 0;
614}
6c3f6e6c 615
def6c4e2
AA		 616/* Eco Mode support */
617static int toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
618{
619 acpi_status status;
620 u32 in[HCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
621 u32 out[HCI_WORDS];
622
623 status = hci_raw(dev, in, out);
624 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
625 pr_info("ACPI call to get ECO led failed\n");
626 return 0;
627 }
628
629 return 1;
630}
631
632static enum led_brightness toshiba_eco_mode_get_status(struct led_classdev *cdev)
633{
634 struct toshiba_acpi_dev *dev = container_of(cdev,
635 struct toshiba_acpi_dev, eco_led);
636 u32 in[HCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
637 u32 out[HCI_WORDS];
638 acpi_status status;
639
640 status = hci_raw(dev, in, out);
641 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
642 pr_err("ACPI call to get ECO led failed\n");
643 return LED_OFF;
644 }
645
646 return out[2] ? LED_FULL : LED_OFF;
647}
648
649static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
650 enum led_brightness brightness)
651{
652 struct toshiba_acpi_dev *dev = container_of(cdev,
653 struct toshiba_acpi_dev, eco_led);
654 u32 in[HCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
655 u32 out[HCI_WORDS];
656 acpi_status status;
657
658 /* Switch the Eco Mode led on/off */
659 in[2] = (brightness) ? 1 : 0;
660 status = hci_raw(dev, in, out);
661 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
662 pr_err("ACPI call to set ECO led failed\n");
663 return;
664 }
665}
ea6b31f4 666
5a2813e9
AA		 667/* Accelerometer support */
668static int toshiba_accelerometer_supported(struct toshiba_acpi_dev *dev)
669{
670 u32 in[HCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
671 u32 out[HCI_WORDS];
672 acpi_status status;
673
674 /* Check if the accelerometer call exists,
675 * this call also serves as initialization
676 */
677 status = hci_raw(dev, in, out);
678 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
679 pr_err("ACPI call to query the accelerometer failed\n");
680 return -EIO;
681 } else if (out[0] == HCI_DATA_NOT_AVAILABLE ||
682 out[0] == HCI_NOT_INITIALIZED) {
683 pr_err("Accelerometer not initialized\n");
684 return -EIO;
685 } else if (out[0] == HCI_NOT_SUPPORTED) {
686 pr_info("Accelerometer not supported\n");
687 return -ENODEV;
688 }
689
690 return 0;
691}
692
693static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
694 u32 *xy, u32 *z)
695{
696 u32 in[HCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
697 u32 out[HCI_WORDS];
698 acpi_status status;
699
700 /* Check the Accelerometer status */
701 status = hci_raw(dev, in, out);
702 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
703 pr_err("ACPI call to query the accelerometer failed\n");
704 return -EIO;
705 }
706
707 *xy = out[2];
708 *z = out[4];
709
710 return 0;
711}
def6c4e2 712
c41a40c5 713/* Bluetooth rfkill handlers */
714
135740de 715static u32 hci_get_bt_present(struct toshiba_acpi_dev *dev, bool *present)
c41a40c5 716{
717 u32 hci_result;
718 u32 value, value2;
719
720 value = 0;
721 value2 = 0;
135740de 722 hci_read2(dev, HCI_WIRELESS, &value, &value2, &hci_result);
c41a40c5 723 if (hci_result == HCI_SUCCESS)
724 *present = (value & HCI_WIRELESS_BT_PRESENT) ? true : false;
725
726 return hci_result;
727}
728
135740de 729static u32 hci_get_radio_state(struct toshiba_acpi_dev *dev, bool *radio_state)
c41a40c5 730{
731 u32 hci_result;
732 u32 value, value2;
733
734 value = 0;
735 value2 = 0x0001;
135740de 736 hci_read2(dev, HCI_WIRELESS, &value, &value2, &hci_result);
c41a40c5 737
738 *radio_state = value & HCI_WIRELESS_KILL_SWITCH;
739 return hci_result;
740}
741
19d337df 742static int bt_rfkill_set_block(void *data, bool blocked)
c41a40c5 743{
19d337df 744 struct toshiba_acpi_dev *dev = data;
c41a40c5 745 u32 result1, result2;
746 u32 value;
19d337df 747 int err;
c41a40c5 748 bool radio_state;
c41a40c5 749
19d337df 750 value = (blocked == false);
c41a40c5 751
19d337df 752 mutex_lock(&dev->mutex);
135740de 753 if (hci_get_radio_state(dev, &radio_state) != HCI_SUCCESS) {
32bcd5cb 754 err = -EIO;
19d337df
JB		 755 goto out;
756 }
c41a40c5 757
19d337df
JB		 758 if (!radio_state) {
759 err = 0;
760 goto out;
c41a40c5 761 }
762
135740de
SF		 763 hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_POWER, &result1);
764 hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_ATTACH, &result2);
c41a40c5 765
766 if (result1 != HCI_SUCCESS || result2 != HCI_SUCCESS)
32bcd5cb 767 err = -EIO;
19d337df
JB		 768 else
769 err = 0;
770 out:
771 mutex_unlock(&dev->mutex);
772 return err;
c41a40c5 773}
774
19d337df 775static void bt_rfkill_poll(struct rfkill *rfkill, void *data)
c41a40c5 776{
c41a40c5 777 bool new_rfk_state;
778 bool value;
779 u32 hci_result;
19d337df
JB		 780 struct toshiba_acpi_dev *dev = data;
781
782 mutex_lock(&dev->mutex);
c41a40c5 783
135740de 784 hci_result = hci_get_radio_state(dev, &value);
19d337df
JB		 785 if (hci_result != HCI_SUCCESS) {
786 /* Can't do anything useful */
787 mutex_unlock(&dev->mutex);
82e7784f 788 return;
19d337df 789 }
c41a40c5 790
791 new_rfk_state = value;
792
c41a40c5 793 mutex_unlock(&dev->mutex);
794
19d337df
JB		 795 if (rfkill_set_hw_state(rfkill, !new_rfk_state))
796 bt_rfkill_set_block(data, true);
c41a40c5 797}
798
19d337df
JB		 799static const struct rfkill_ops toshiba_rfk_ops = {
800 .set_block = bt_rfkill_set_block,
801 .poll = bt_rfkill_poll,
802};
803
121b7b0d
AI		 804static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, bool *enabled)
805{
806 u32 hci_result;
807 u32 status;
808
809 hci_read1(dev, HCI_TR_BACKLIGHT, &status, &hci_result);
810 *enabled = !status;
811 return hci_result == HCI_SUCCESS ? 0 : -EIO;
812}
813
814static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, bool enable)
815{
816 u32 hci_result;
817 u32 value = !enable;
818
819 hci_write1(dev, HCI_TR_BACKLIGHT, value, &hci_result);
820 return hci_result == HCI_SUCCESS ? 0 : -EIO;
821}
822
4be44fcd 823static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ;
1da177e4 824
62cce752 825static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1da177e4
LT		 826{
827 u32 hci_result;
828 u32 value;
121b7b0d
AI		 829 int brightness = 0;
830
831 if (dev->tr_backlight_supported) {
832 bool enabled;
833 int ret = get_tr_backlight_status(dev, &enabled);
834 if (ret)
835 return ret;
836 if (enabled)
837 return 0;
838 brightness++;
839 }
1da177e4 840
135740de 841 hci_read1(dev, HCI_LCD_BRIGHTNESS, &value, &hci_result);
32bcd5cb 842 if (hci_result == HCI_SUCCESS)
121b7b0d 843 return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT);
32bcd5cb
SF		 844
845 return -EIO;
c9263557
HM		 846}
847
62cce752
SF		 848static int get_lcd_brightness(struct backlight_device *bd)
849{
850 struct toshiba_acpi_dev *dev = bl_get_data(bd);
851 return __get_lcd_brightness(dev);
852}
853
936c8bcd 854static int lcd_proc_show(struct seq_file *m, void *v)
c9263557 855{
135740de
SF		 856 struct toshiba_acpi_dev *dev = m->private;
857 int value;
121b7b0d 858 int levels;
135740de
SF		 859
860 if (!dev->backlight_dev)
861 return -ENODEV;
c9263557 862
121b7b0d 863 levels = dev->backlight_dev->props.max_brightness + 1;
62cce752 864 value = get_lcd_brightness(dev->backlight_dev);
c9263557 865 if (value >= 0) {
936c8bcd 866 seq_printf(m, "brightness: %d\n", value);
121b7b0d 867 seq_printf(m, "brightness_levels: %d\n", levels);
32bcd5cb 868 return 0;
1da177e4
LT		 869 }
870
32bcd5cb
SF		 871 pr_err("Error reading LCD brightness\n");
872 return -EIO;
936c8bcd
AD		 873}
874
875static int lcd_proc_open(struct inode *inode, struct file *file)
876{
d9dda78b 877 return single_open(file, lcd_proc_show, PDE_DATA(inode));
1da177e4
LT		 878}
879
62cce752 880static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
c9263557 881{
f6aac652
AA		 882 u32 in[HCI_WORDS] = { HCI_SET, HCI_LCD_BRIGHTNESS, 0, 0, 0, 0 };
883 u32 out[HCI_WORDS];
884 acpi_status status;
c9263557 885
121b7b0d
AI		 886 if (dev->tr_backlight_supported) {
887 bool enable = !value;
888 int ret = set_tr_backlight_status(dev, enable);
889 if (ret)
890 return ret;
891 if (value)
892 value--;
893 }
894
f6aac652
AA		 895 in[2] = value << HCI_LCD_BRIGHTNESS_SHIFT;
896 status = hci_raw(dev, in, out);
897 if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
898 pr_err("ACPI call to set brightness failed");
899 return -EIO;
900 }
901 /* Extra check for "incomplete" backlight method, where the AML code
902 * doesn't check for HCI_SET or HCI_GET and returns HCI_SUCCESS,
903 * the actual brightness, and in some cases the max brightness.
904 */
905 if (out[2] > 0 || out[3] == 0xE000)
906 return -ENODEV;
907
908 return out[0] == HCI_SUCCESS ? 0 : -EIO;
c9263557
HM		 909}
910
911static int set_lcd_status(struct backlight_device *bd)
912{
135740de 913 struct toshiba_acpi_dev *dev = bl_get_data(bd);
62cce752 914 return set_lcd_brightness(dev, bd->props.brightness);
c9263557
HM		 915}
916
936c8bcd
AD		 917static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
918 size_t count, loff_t *pos)
1da177e4 919{
d9dda78b 920 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
936c8bcd
AD		 921 char cmd[42];
922 size_t len;
1da177e4 923 int value;
c8af57eb 924 int ret;
121b7b0d 925 int levels = dev->backlight_dev->props.max_brightness + 1;
1da177e4 926
936c8bcd
AD		 927 len = min(count, sizeof(cmd) - 1);
928 if (copy_from_user(cmd, buf, len))
929 return -EFAULT;
930 cmd[len] = '\0';
931
932 if (sscanf(cmd, " brightness : %i", &value) == 1 &&
121b7b0d 933 value >= 0 && value < levels) {
62cce752 934 ret = set_lcd_brightness(dev, value);
c8af57eb
MO		 935 if (ret == 0)
936 ret = count;
937 } else {
c9263557 938 ret = -EINVAL;
c8af57eb 939 }
c9263557 940 return ret;
1da177e4
LT		 941}
942
936c8bcd
AD		 943static const struct file_operations lcd_proc_fops = {
944 .owner = THIS_MODULE,
945 .open = lcd_proc_open,
946 .read = seq_read,
947 .llseek = seq_lseek,
948 .release = single_release,
949 .write = lcd_proc_write,
950};
951
36d03f93
SF		 952static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
953{
954 u32 hci_result;
955
956 hci_read1(dev, HCI_VIDEO_OUT, status, &hci_result);
957 return hci_result == HCI_SUCCESS ? 0 : -EIO;
958}
959
936c8bcd 960static int video_proc_show(struct seq_file *m, void *v)
1da177e4 961{
135740de 962 struct toshiba_acpi_dev *dev = m->private;
1da177e4 963 u32 value;
36d03f93 964 int ret;
1da177e4 965
36d03f93
SF		 966 ret = get_video_status(dev, &value);
967 if (!ret) {
1da177e4
LT		 968 int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
969 int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
4be44fcd 970 int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
936c8bcd
AD		 971 seq_printf(m, "lcd_out: %d\n", is_lcd);
972 seq_printf(m, "crt_out: %d\n", is_crt);
973 seq_printf(m, "tv_out: %d\n", is_tv);
1da177e4
LT		 974 }
975
36d03f93 976 return ret;
1da177e4
LT		 977}
978
936c8bcd 979static int video_proc_open(struct inode *inode, struct file *file)
1da177e4 980{
d9dda78b 981 return single_open(file, video_proc_show, PDE_DATA(inode));
936c8bcd
AD		 982}
983
984static ssize_t video_proc_write(struct file *file, const char __user *buf,
985 size_t count, loff_t *pos)
986{
d9dda78b 987 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
936c8bcd 988 char *cmd, *buffer;
36d03f93 989 int ret;
1da177e4
LT		 990 int value;
991 int remain = count;
992 int lcd_out = -1;
993 int crt_out = -1;
994 int tv_out = -1;
b4482a4b 995 u32 video_out;
1da177e4 996
936c8bcd
AD		 997 cmd = kmalloc(count + 1, GFP_KERNEL);
998 if (!cmd)
999 return -ENOMEM;
1000 if (copy_from_user(cmd, buf, count)) {
1001 kfree(cmd);
1002 return -EFAULT;
1003 }
1004 cmd[count] = '\0';
1005
1006 buffer = cmd;
1007
1da177e4
LT		 1008 /* scan expression. Multiple expressions may be delimited with ;
1009 *
1010 * NOTE: to keep scanning simple, invalid fields are ignored
1011 */
1012 while (remain) {
1013 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1014 lcd_out = value & 1;
1015 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1016 crt_out = value & 1;
1017 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1018 tv_out = value & 1;
1019 /* advance to one character past the next ; */
1020 do {
1021 ++buffer;
1022 --remain;
1023 }
4be44fcd 1024 while (remain && *(buffer - 1) != ';');
1da177e4
LT		 1025 }
1026
936c8bcd
AD		 1027 kfree(cmd);
1028
36d03f93
SF		 1029 ret = get_video_status(dev, &video_out);
1030 if (!ret) {
9e113e00 1031 unsigned int new_video_out = video_out;
1da177e4
LT		 1032 if (lcd_out != -1)
1033 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1034 if (crt_out != -1)
1035 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1036 if (tv_out != -1)
1037 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1038 /* To avoid unnecessary video disruption, only write the new
1039 * video setting if something changed. */
1040 if (new_video_out != video_out)
32bcd5cb 1041 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1da177e4
LT		 1042 }
1043
32bcd5cb 1044 return ret ? ret : count;
1da177e4
LT		 1045}
1046
936c8bcd
AD		 1047static const struct file_operations video_proc_fops = {
1048 .owner = THIS_MODULE,
1049 .open = video_proc_open,
1050 .read = seq_read,
1051 .llseek = seq_lseek,
1052 .release = single_release,
1053 .write = video_proc_write,
1054};
1055
36d03f93
SF		 1056static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1057{
1058 u32 hci_result;
1059
1060 hci_read1(dev, HCI_FAN, status, &hci_result);
1061 return hci_result == HCI_SUCCESS ? 0 : -EIO;
1062}
1063
936c8bcd 1064static int fan_proc_show(struct seq_file *m, void *v)
1da177e4 1065{
135740de 1066 struct toshiba_acpi_dev *dev = m->private;
36d03f93 1067 int ret;
1da177e4
LT		 1068 u32 value;
1069
36d03f93
SF		 1070 ret = get_fan_status(dev, &value);
1071 if (!ret) {
936c8bcd 1072 seq_printf(m, "running: %d\n", (value > 0));
135740de 1073 seq_printf(m, "force_on: %d\n", dev->force_fan);
1da177e4
LT		 1074 }
1075
36d03f93 1076 return ret;
936c8bcd
AD		 1077}
1078
1079static int fan_proc_open(struct inode *inode, struct file *file)
1080{
d9dda78b 1081 return single_open(file, fan_proc_show, PDE_DATA(inode));
1da177e4
LT		 1082}
1083
936c8bcd
AD		 1084static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1085 size_t count, loff_t *pos)
1da177e4 1086{
d9dda78b 1087 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
936c8bcd
AD		 1088 char cmd[42];
1089 size_t len;
1da177e4
LT		 1090 int value;
1091 u32 hci_result;
1092
936c8bcd
AD		 1093 len = min(count, sizeof(cmd) - 1);
1094 if (copy_from_user(cmd, buf, len))
1095 return -EFAULT;
1096 cmd[len] = '\0';
1097
1098 if (sscanf(cmd, " force_on : %i", &value) == 1 &&
4be44fcd 1099 value >= 0 && value <= 1) {
135740de 1100 hci_write1(dev, HCI_FAN, value, &hci_result);
1da177e4 1101 if (hci_result != HCI_SUCCESS)
32bcd5cb 1102 return -EIO;
1da177e4 1103 else
135740de 1104 dev->force_fan = value;
1da177e4
LT		 1105 } else {
1106 return -EINVAL;
1107 }
1108
1109 return count;
1110}
1111
936c8bcd
AD		 1112static const struct file_operations fan_proc_fops = {
1113 .owner = THIS_MODULE,
1114 .open = fan_proc_open,
1115 .read = seq_read,
1116 .llseek = seq_lseek,
1117 .release = single_release,
1118 .write = fan_proc_write,
1119};
1120
1121static int keys_proc_show(struct seq_file *m, void *v)
1da177e4 1122{
135740de 1123 struct toshiba_acpi_dev *dev = m->private;
1da177e4
LT		 1124 u32 hci_result;
1125 u32 value;
1126
11948b93 1127 if (!dev->key_event_valid && dev->system_event_supported) {
135740de 1128 hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result);
1da177e4 1129 if (hci_result == HCI_SUCCESS) {
135740de
SF		 1130 dev->key_event_valid = 1;
1131 dev->last_key_event = value;
1da177e4
LT		 1132 } else if (hci_result == HCI_EMPTY) {
1133 /* better luck next time */
1134 } else if (hci_result == HCI_NOT_SUPPORTED) {
1135 /* This is a workaround for an unresolved issue on
1136 * some machines where system events sporadically
1137 * become disabled. */
135740de 1138 hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
7e33460d 1139 pr_notice("Re-enabled hotkeys\n");
1da177e4 1140 } else {
7e33460d 1141 pr_err("Error reading hotkey status\n");
32bcd5cb 1142 return -EIO;
1da177e4
LT		 1143 }
1144 }
1145
135740de
SF		 1146 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1147 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
936c8bcd
AD		 1148 return 0;
1149}
1da177e4 1150
936c8bcd
AD		 1151static int keys_proc_open(struct inode *inode, struct file *file)
1152{
d9dda78b 1153 return single_open(file, keys_proc_show, PDE_DATA(inode));
1da177e4
LT		 1154}
1155
936c8bcd
AD		 1156static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1157 size_t count, loff_t *pos)
1da177e4 1158{
d9dda78b 1159 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
936c8bcd
AD		 1160 char cmd[42];
1161 size_t len;
1da177e4
LT		 1162 int value;
1163
936c8bcd
AD		 1164 len = min(count, sizeof(cmd) - 1);
1165 if (copy_from_user(cmd, buf, len))
1166 return -EFAULT;
1167 cmd[len] = '\0';
1168
1169 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0) {
135740de 1170 dev->key_event_valid = 0;
1da177e4
LT		 1171 } else {
1172 return -EINVAL;
1173 }
1174
1175 return count;
1176}
1177
936c8bcd
AD		 1178static const struct file_operations keys_proc_fops = {
1179 .owner = THIS_MODULE,
1180 .open = keys_proc_open,
1181 .read = seq_read,
1182 .llseek = seq_lseek,
1183 .release = single_release,
1184 .write = keys_proc_write,
1185};
1186
1187static int version_proc_show(struct seq_file *m, void *v)
1da177e4 1188{
936c8bcd
AD		 1189 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1190 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1191 return 0;
1da177e4
LT		 1192}
1193
936c8bcd
AD		 1194static int version_proc_open(struct inode *inode, struct file *file)
1195{
d9dda78b 1196 return single_open(file, version_proc_show, PDE_DATA(inode));
936c8bcd
AD		 1197}
1198
1199static const struct file_operations version_proc_fops = {
1200 .owner = THIS_MODULE,
1201 .open = version_proc_open,
1202 .read = seq_read,
1203 .llseek = seq_lseek,
1204 .release = single_release,
1205};
1206
1da177e4
LT		 1207/* proc and module init
1208 */
1209
1210#define PROC_TOSHIBA "toshiba"
1211
b859f159 1212static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1da177e4 1213{
36d03f93
SF		 1214 if (dev->backlight_dev)
1215 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1216 &lcd_proc_fops, dev);
1217 if (dev->video_supported)
1218 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1219 &video_proc_fops, dev);
1220 if (dev->fan_supported)
1221 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1222 &fan_proc_fops, dev);
1223 if (dev->hotkey_dev)
1224 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1225 &keys_proc_fops, dev);
135740de
SF		 1226 proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1227 &version_proc_fops, dev);
1da177e4
LT		 1228}
1229
36d03f93 1230static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1da177e4 1231{
36d03f93
SF		 1232 if (dev->backlight_dev)
1233 remove_proc_entry("lcd", toshiba_proc_dir);
1234 if (dev->video_supported)
1235 remove_proc_entry("video", toshiba_proc_dir);
1236 if (dev->fan_supported)
1237 remove_proc_entry("fan", toshiba_proc_dir);
1238 if (dev->hotkey_dev)
1239 remove_proc_entry("keys", toshiba_proc_dir);
936c8bcd 1240 remove_proc_entry("version", toshiba_proc_dir);
1da177e4
LT		 1241}
1242
acc2472e 1243static const struct backlight_ops toshiba_backlight_data = {
121b7b0d 1244 .options = BL_CORE_SUSPENDRESUME,
62cce752
SF		 1245 .get_brightness = get_lcd_brightness,
1246 .update_status = set_lcd_status,
c9263557 1247};
ea6b31f4 1248
360f0f39
AA		 1249/*
1250 * Sysfs files
1251 */
1252
1253static ssize_t toshiba_kbd_bl_mode_store(struct device *dev,
1254 struct device_attribute *attr,
1255 const char *buf, size_t count)
1256{
1257 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
aeaac098
DC		 1258 int mode;
1259 int time;
1260 int ret;
1261
360f0f39 1262
aeaac098
DC		 1263 ret = kstrtoint(buf, 0, &mode);
1264 if (ret)
1265 return ret;
1266 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
360f0f39
AA		 1267 return -EINVAL;
1268
1269 /* Set the Keyboard Backlight Mode where:
1270 * Mode - Auto (2) | FN-Z (1)
1271 * Auto - KBD backlight turns off automatically in given time
1272 * FN-Z - KBD backlight "toggles" when hotkey pressed
1273 */
aeaac098 1274 if (toshiba->kbd_mode != mode) {
360f0f39
AA		 1275 time = toshiba->kbd_time << HCI_MISC_SHIFT;
1276 time = time + toshiba->kbd_mode;
aeaac098
DC		 1277 ret = toshiba_kbd_illum_status_set(toshiba, time);
1278 if (ret)
1279 return ret;
360f0f39
AA		 1280 toshiba->kbd_mode = mode;
1281 }
1282
1283 return count;
1284}
1285
1286static ssize_t toshiba_kbd_bl_mode_show(struct device *dev,
1287 struct device_attribute *attr,
1288 char *buf)
1289{
1290 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1291 u32 time;
1292
1293 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1294 return -EIO;
1295
1296 return sprintf(buf, "%i\n", time & 0x07);
1297}
1298
1299static ssize_t toshiba_kbd_bl_timeout_store(struct device *dev,
1300 struct device_attribute *attr,
1301 const char *buf, size_t count)
1302{
1303 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1304 int time = -1;
1305
1306 if (sscanf(buf, "%i", &time) != 1 && (time < 0 || time > 60))
1307 return -EINVAL;
1308
1309 /* Set the Keyboard Backlight Timeout: 0-60 seconds */
1310 if (time != -1 && toshiba->kbd_time != time) {
1311 time = time << HCI_MISC_SHIFT;
1312 time = (toshiba->kbd_mode == SCI_KBD_MODE_AUTO) ?
1313 time + 1 : time + 2;
1314 if (toshiba_kbd_illum_status_set(toshiba, time) < 0)
1315 return -EIO;
1316 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1317 }
1318
1319 return count;
1320}
1321
1322static ssize_t toshiba_kbd_bl_timeout_show(struct device *dev,
1323 struct device_attribute *attr,
1324 char *buf)
1325{
1326 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1327 u32 time;
1328
1329 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1330 return -EIO;
1331
1332 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1333}
ea6b31f4 1334
9d8658ac
AA		 1335static ssize_t toshiba_touchpad_store(struct device *dev,
1336 struct device_attribute *attr,
1337 const char *buf, size_t count)
1338{
1339 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1340 int state;
1341
1342 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1343 if (sscanf(buf, "%i", &state) == 1 && (state == 0 || state == 1)) {
1344 if (toshiba_touchpad_set(toshiba, state) < 0)
1345 return -EIO;
1346 }
1347
1348 return count;
1349}
1350
1351static ssize_t toshiba_touchpad_show(struct device *dev,
1352 struct device_attribute *attr, char *buf)
1353{
1354 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1355 u32 state;
1356 int ret;
1357
1358 ret = toshiba_touchpad_get(toshiba, &state);
1359 if (ret < 0)
1360 return ret;
1361
1362 return sprintf(buf, "%i\n", state);
1363}
ea6b31f4 1364
5a2813e9
AA		 1365static ssize_t toshiba_position_show(struct device *dev,
1366 struct device_attribute *attr, char *buf)
1367{
1368 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1369 u32 xyval, zval, tmp;
1370 u16 x, y, z;
1371 int ret;
1372
1373 xyval = zval = 0;
1374 ret = toshiba_accelerometer_get(toshiba, &xyval, &zval);
1375 if (ret < 0)
1376 return ret;
1377
1378 x = xyval & HCI_ACCEL_MASK;
1379 tmp = xyval >> HCI_MISC_SHIFT;
1380 y = tmp & HCI_ACCEL_MASK;
1381 z = zval & HCI_ACCEL_MASK;
1382
1383 return sprintf(buf, "%d %d %d\n", x, y, z);
1384}
360f0f39
AA		 1385
1386static DEVICE_ATTR(kbd_backlight_mode, S_IRUGO | S_IWUSR,
1387 toshiba_kbd_bl_mode_show, toshiba_kbd_bl_mode_store);
1388static DEVICE_ATTR(kbd_backlight_timeout, S_IRUGO | S_IWUSR,
1389 toshiba_kbd_bl_timeout_show, toshiba_kbd_bl_timeout_store);
9d8658ac
AA		 1390static DEVICE_ATTR(touchpad, S_IRUGO | S_IWUSR,
1391 toshiba_touchpad_show, toshiba_touchpad_store);
5a2813e9 1392static DEVICE_ATTR(position, S_IRUGO, toshiba_position_show, NULL);
360f0f39
AA		 1393
1394static struct attribute *toshiba_attributes[] = {
1395 &dev_attr_kbd_backlight_mode.attr,
1396 &dev_attr_kbd_backlight_timeout.attr,
9d8658ac 1397 &dev_attr_touchpad.attr,
5a2813e9 1398 &dev_attr_position.attr,
360f0f39
AA		 1399 NULL,
1400};
1401
1402static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
1403 struct attribute *attr, int idx)
1404{
1405 struct device *dev = container_of(kobj, struct device, kobj);
1406 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
1407 bool exists = true;
1408
1409 if (attr == &dev_attr_kbd_backlight_mode.attr)
1410 exists = (drv->kbd_illum_supported) ? true : false;
1411 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
1412 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
9d8658ac
AA		 1413 else if (attr == &dev_attr_touchpad.attr)
1414 exists = (drv->touchpad_supported) ? true : false;
5a2813e9
AA		 1415 else if (attr == &dev_attr_position.attr)
1416 exists = (drv->accelerometer_supported) ? true : false;
360f0f39
AA		 1417
1418 return exists ? attr->mode : 0;
1419}
1420
1421static struct attribute_group toshiba_attr_group = {
1422 .is_visible = toshiba_sysfs_is_visible,
1423 .attrs = toshiba_attributes,
1424};
c9263557 1425
29cd293f
SF		 1426static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
1427 struct serio *port)
1428{
1429 if (str & 0x20)
1430 return false;
1431
1432 if (unlikely(data == 0xe0))
1433 return false;
1434
1435 if ((data & 0x7f) == TOS1900_FN_SCAN) {
1436 schedule_work(&toshiba_acpi->hotkey_work);
1437 return true;
1438 }
1439
1440 return false;
1441}
1442
1443static void toshiba_acpi_hotkey_work(struct work_struct *work)
1444{
1445 acpi_handle ec_handle = ec_get_handle();
1446 acpi_status status;
1447
1448 if (!ec_handle)
1449 return;
1450
1451 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
1452 if (ACPI_FAILURE(status))
1453 pr_err("ACPI NTFY method execution failed\n");
1454}
1455
1456/*
1457 * Returns hotkey scancode, or < 0 on failure.
1458 */
1459static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
1460{
74facaf7 1461 unsigned long long value;
29cd293f
SF		 1462 acpi_status status;
1463
74facaf7
ZR		 1464 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
1465 NULL, &value);
1466 if (ACPI_FAILURE(status)) {
29cd293f
SF		 1467 pr_err("ACPI INFO method execution failed\n");
1468 return -EIO;
1469 }
1470
74facaf7 1471 return value;
29cd293f
SF		 1472}
1473
1474static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
1475 int scancode)
1476{
1477 if (scancode == 0x100)
1478 return;
1479
1480 /* act on key press; ignore key release */
1481 if (scancode & 0x80)
1482 return;
1483
1484 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
1485 pr_info("Unknown key %x\n", scancode);
1486}
1487
b859f159 1488static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
6335e4d5
MG		 1489{
1490 acpi_status status;
e2e19606 1491 acpi_handle ec_handle;
384a7cd9 1492 int error;
29cd293f 1493 u32 hci_result;
fe808bfb 1494 const struct key_entry *keymap = toshiba_acpi_keymap;
6335e4d5 1495
135740de 1496 dev->hotkey_dev = input_allocate_device();
b222cca6 1497 if (!dev->hotkey_dev)
6335e4d5 1498 return -ENOMEM;
6335e4d5 1499
135740de 1500 dev->hotkey_dev->name = "Toshiba input device";
6e02cc7e 1501 dev->hotkey_dev->phys = "toshiba_acpi/input0";
135740de 1502 dev->hotkey_dev->id.bustype = BUS_HOST;
6335e4d5 1503
fe808bfb
TI		 1504 if (dmi_check_system(toshiba_alt_keymap_dmi))
1505 keymap = toshiba_acpi_alt_keymap;
1506 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
384a7cd9
DT		 1507 if (error)
1508 goto err_free_dev;
1509
29cd293f
SF		 1510 /*
1511 * For some machines the SCI responsible for providing hotkey
1512 * notification doesn't fire. We can trigger the notification
1513 * whenever the Fn key is pressed using the NTFY method, if
1514 * supported, so if it's present set up an i8042 key filter
1515 * for this purpose.
1516 */
1517 status = AE_ERROR;
1518 ec_handle = ec_get_handle();
e2e19606 1519 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
29cd293f
SF		 1520 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
1521
1522 error = i8042_install_filter(toshiba_acpi_i8042_filter);
1523 if (error) {
1524 pr_err("Error installing key filter\n");
1525 goto err_free_keymap;
1526 }
1527
1528 dev->ntfy_supported = 1;
1529 }
1530
1531 /*
1532 * Determine hotkey query interface. Prefer using the INFO
1533 * method when it is available.
1534 */
e2e19606 1535 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
29cd293f 1536 dev->info_supported = 1;
e2e19606 1537 else {
29cd293f
SF		 1538 hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
1539 if (hci_result == HCI_SUCCESS)
1540 dev->system_event_supported = 1;
1541 }
1542
1543 if (!dev->info_supported && !dev->system_event_supported) {
1544 pr_warn("No hotkey query interface found\n");
1545 goto err_remove_filter;
1546 }
1547
6e02cc7e 1548 status = acpi_evaluate_object(dev->acpi_dev->handle, "ENAB", NULL, NULL);
384a7cd9 1549 if (ACPI_FAILURE(status)) {
7e33460d 1550 pr_info("Unable to enable hotkeys\n");
384a7cd9 1551 error = -ENODEV;
29cd293f 1552 goto err_remove_filter;
6335e4d5
MG		 1553 }
1554
135740de 1555 error = input_register_device(dev->hotkey_dev);
384a7cd9 1556 if (error) {
7e33460d 1557 pr_info("Unable to register input device\n");
29cd293f 1558 goto err_remove_filter;
6335e4d5
MG		 1559 }
1560
29cd293f 1561 hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &hci_result);
6335e4d5 1562 return 0;
384a7cd9 1563
29cd293f
SF		 1564 err_remove_filter:
1565 if (dev->ntfy_supported)
1566 i8042_remove_filter(toshiba_acpi_i8042_filter);
384a7cd9 1567 err_free_keymap:
135740de 1568 sparse_keymap_free(dev->hotkey_dev);
384a7cd9 1569 err_free_dev:
135740de
SF		 1570 input_free_device(dev->hotkey_dev);
1571 dev->hotkey_dev = NULL;
384a7cd9 1572 return error;
6335e4d5
MG		 1573}
1574
b859f159 1575static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
62cce752
SF		 1576{
1577 struct backlight_properties props;
1578 int brightness;
1579 int ret;
121b7b0d 1580 bool enabled;
62cce752
SF		 1581
1582 /*
1583 * Some machines don't support the backlight methods at all, and
1584 * others support it read-only. Either of these is pretty useless,
1585 * so only register the backlight device if the backlight method
1586 * supports both reads and writes.
1587 */
1588 brightness = __get_lcd_brightness(dev);
1589 if (brightness < 0)
1590 return 0;
1591 ret = set_lcd_brightness(dev, brightness);
1592 if (ret) {
1593 pr_debug("Backlight method is read-only, disabling backlight support\n");
1594 return 0;
1595 }
1596
121b7b0d
AI		 1597 /* Determine whether or not BIOS supports transflective backlight */
1598 ret = get_tr_backlight_status(dev, &enabled);
1599 dev->tr_backlight_supported = !ret;
1600
53039f22 1601 memset(&props, 0, sizeof(props));
62cce752
SF		 1602 props.type = BACKLIGHT_PLATFORM;
1603 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
62cce752 1604
121b7b0d
AI		 1605 /* adding an extra level and having 0 change to transflective mode */
1606 if (dev->tr_backlight_supported)
1607 props.max_brightness++;
1608
62cce752
SF		 1609 dev->backlight_dev = backlight_device_register("toshiba",
1610 &dev->acpi_dev->dev,
1611 dev,
1612 &toshiba_backlight_data,
1613 &props);
1614 if (IS_ERR(dev->backlight_dev)) {
1615 ret = PTR_ERR(dev->backlight_dev);
1616 pr_err("Could not register toshiba backlight device\n");
1617 dev->backlight_dev = NULL;
1618 return ret;
1619 }
1620
1621 dev->backlight_dev->props.brightness = brightness;
1622 return 0;
1623}
1624
51fac838 1625static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
c9263557 1626{
135740de 1627 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
6335e4d5 1628
36d03f93 1629 remove_toshiba_proc_entries(dev);
ea6b31f4 1630
360f0f39
AA		 1631 if (dev->sysfs_created)
1632 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
1633 &toshiba_attr_group);
c41a40c5 1634
29cd293f
SF		 1635 if (dev->ntfy_supported) {
1636 i8042_remove_filter(toshiba_acpi_i8042_filter);
1637 cancel_work_sync(&dev->hotkey_work);
1638 }
1639
135740de
SF		 1640 if (dev->hotkey_dev) {
1641 input_unregister_device(dev->hotkey_dev);
1642 sparse_keymap_free(dev->hotkey_dev);
1643 }
c9263557 1644
135740de
SF		 1645 if (dev->bt_rfk) {
1646 rfkill_unregister(dev->bt_rfk);
1647 rfkill_destroy(dev->bt_rfk);
1648 }
c9263557 1649
135740de
SF		 1650 if (dev->backlight_dev)
1651 backlight_device_unregister(dev->backlight_dev);
c9263557 1652
36d03f93 1653 if (dev->illumination_supported)
135740de 1654 led_classdev_unregister(&dev->led_dev);
ea6b31f4 1655
360f0f39
AA		 1656 if (dev->kbd_led_registered)
1657 led_classdev_unregister(&dev->kbd_led);
ea6b31f4 1658
def6c4e2
AA		 1659 if (dev->eco_supported)
1660 led_classdev_unregister(&dev->eco_led);
6c3f6e6c 1661
29cd293f
SF		 1662 if (toshiba_acpi)
1663 toshiba_acpi = NULL;
1664
135740de 1665 kfree(dev);
c41a40c5 1666
135740de 1667 return 0;
c9263557
HM		 1668}
1669
b859f159 1670static const char *find_hci_method(acpi_handle handle)
a540d6b5 1671{
e2e19606 1672 if (acpi_has_method(handle, "GHCI"))
a540d6b5
SF		 1673 return "GHCI";
1674
e2e19606 1675 if (acpi_has_method(handle, "SPFC"))
a540d6b5
SF		 1676 return "SPFC";
1677
1678 return NULL;
1679}
1680
b859f159 1681static int toshiba_acpi_add(struct acpi_device *acpi_dev)
1da177e4 1682{
135740de 1683 struct toshiba_acpi_dev *dev;
a540d6b5 1684 const char *hci_method;
36d03f93 1685 u32 dummy;
c41a40c5 1686 bool bt_present;
c41a40c5 1687 int ret = 0;
1da177e4 1688
29cd293f
SF		 1689 if (toshiba_acpi)
1690 return -EBUSY;
1691
135740de
SF		 1692 pr_info("Toshiba Laptop ACPI Extras version %s\n",
1693 TOSHIBA_ACPI_VERSION);
1694
a540d6b5
SF		 1695 hci_method = find_hci_method(acpi_dev->handle);
1696 if (!hci_method) {
1697 pr_err("HCI interface not found\n");
6e02cc7e 1698 return -ENODEV;
a540d6b5 1699 }
6e02cc7e 1700
135740de
SF		 1701 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1702 if (!dev)
1703 return -ENOMEM;
1704 dev->acpi_dev = acpi_dev;
a540d6b5 1705 dev->method_hci = hci_method;
135740de 1706 acpi_dev->driver_data = dev;
360f0f39 1707 dev_set_drvdata(&acpi_dev->dev, dev);
fb9802fa 1708
6e02cc7e
SF		 1709 if (toshiba_acpi_setup_keyboard(dev))
1710 pr_info("Unable to activate hotkeys\n");
135740de
SF		 1711
1712 mutex_init(&dev->mutex);
1da177e4 1713
62cce752
SF		 1714 ret = toshiba_acpi_setup_backlight(dev);
1715 if (ret)
135740de 1716 goto error;
1da177e4 1717
c41a40c5 1718 /* Register rfkill switch for Bluetooth */
135740de
SF		 1719 if (hci_get_bt_present(dev, &bt_present) == HCI_SUCCESS && bt_present) {
1720 dev->bt_rfk = rfkill_alloc("Toshiba Bluetooth",
1721 &acpi_dev->dev,
1722 RFKILL_TYPE_BLUETOOTH,
1723 &toshiba_rfk_ops,
1724 dev);
1725 if (!dev->bt_rfk) {
7e33460d 1726 pr_err("unable to allocate rfkill device\n");
135740de
SF		 1727 ret = -ENOMEM;
1728 goto error;
c41a40c5 1729 }
1730
135740de 1731 ret = rfkill_register(dev->bt_rfk);
c41a40c5 1732 if (ret) {
7e33460d 1733 pr_err("unable to register rfkill device\n");
135740de
SF		 1734 rfkill_destroy(dev->bt_rfk);
1735 goto error;
38aefbc5 1736 }
c41a40c5 1737 }
1738
135740de
SF		 1739 if (toshiba_illumination_available(dev)) {
1740 dev->led_dev.name = "toshiba::illumination";
1741 dev->led_dev.max_brightness = 1;
1742 dev->led_dev.brightness_set = toshiba_illumination_set;
1743 dev->led_dev.brightness_get = toshiba_illumination_get;
1744 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
36d03f93 1745 dev->illumination_supported = 1;
6c3f6e6c 1746 }
ea6b31f4 1747
def6c4e2
AA		 1748 if (toshiba_eco_mode_available(dev)) {
1749 dev->eco_led.name = "toshiba::eco_mode";
1750 dev->eco_led.max_brightness = 1;
1751 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
1752 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
1753 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
1754 dev->eco_supported = 1;
1755 }
ea6b31f4 1756
360f0f39
AA		 1757 ret = toshiba_kbd_illum_status_get(dev, &dummy);
1758 if (!ret) {
1759 dev->kbd_time = dummy >> HCI_MISC_SHIFT;
1760 dev->kbd_mode = dummy & 0x07;
1761 }
1762 dev->kbd_illum_supported = !ret;
1763 /*
1764 * Only register the LED if KBD illumination is supported
1765 * and the keyboard backlight operation mode is set to FN-Z
1766 */
1767 if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
1768 dev->kbd_led.name = "toshiba::kbd_backlight";
1769 dev->kbd_led.max_brightness = 1;
1770 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
1771 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
1772 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
1773 dev->kbd_led_registered = 1;
1774 }
ea6b31f4 1775
9d8658ac
AA		 1776 ret = toshiba_touchpad_get(dev, &dummy);
1777 dev->touchpad_supported = !ret;
ea6b31f4 1778
5a2813e9
AA		 1779 ret = toshiba_accelerometer_supported(dev);
1780 dev->accelerometer_supported = !ret;
6c3f6e6c 1781
36d03f93
SF		 1782 /* Determine whether or not BIOS supports fan and video interfaces */
1783
1784 ret = get_video_status(dev, &dummy);
1785 dev->video_supported = !ret;
1786
1787 ret = get_fan_status(dev, &dummy);
1788 dev->fan_supported = !ret;
1789
360f0f39
AA		 1790 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
1791 &toshiba_attr_group);
1792 if (ret) {
1793 dev->sysfs_created = 0;
1794 goto error;
1795 }
1796 dev->sysfs_created = !ret;
1797
36d03f93
SF		 1798 create_toshiba_proc_entries(dev);
1799
29cd293f
SF		 1800 toshiba_acpi = dev;
1801
c41a40c5 1802 return 0;
135740de
SF		 1803
1804error:
51fac838 1805 toshiba_acpi_remove(acpi_dev);
135740de
SF		 1806 return ret;
1807}
1808
1809static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
1810{
1811 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
1812 u32 hci_result, value;
11948b93 1813 int retries = 3;
29cd293f 1814 int scancode;
135740de 1815
29cd293f 1816 if (event != 0x80)
135740de 1817 return;
11948b93 1818
29cd293f
SF		 1819 if (dev->info_supported) {
1820 scancode = toshiba_acpi_query_hotkey(dev);
1821 if (scancode < 0)
1822 pr_err("Failed to query hotkey event\n");
1823 else if (scancode != 0)
1824 toshiba_acpi_report_hotkey(dev, scancode);
1825 } else if (dev->system_event_supported) {
1826 do {
1827 hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result);
1828 switch (hci_result) {
1829 case HCI_SUCCESS:
1830 toshiba_acpi_report_hotkey(dev, (int)value);
1831 break;
1832 case HCI_NOT_SUPPORTED:
1833 /*
1834 * This is a workaround for an unresolved
1835 * issue on some machines where system events
1836 * sporadically become disabled.
1837 */
1838 hci_write1(dev, HCI_SYSTEM_EVENT, 1,
1839 &hci_result);
1840 pr_notice("Re-enabled hotkeys\n");
1841 /* fall through */
1842 default:
1843 retries--;
1844 break;
135740de 1845 }
29cd293f
SF		 1846 } while (retries && hci_result != HCI_EMPTY);
1847 }
135740de
SF		 1848}
1849
3567a4e2 1850#ifdef CONFIG_PM_SLEEP
43d2fd3b 1851static int toshiba_acpi_suspend(struct device *device)
29cd293f 1852{
43d2fd3b 1853 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
29cd293f
SF		 1854 u32 result;
1855
1856 if (dev->hotkey_dev)
1857 hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE, &result);
1858
1859 return 0;
1860}
1861
43d2fd3b 1862static int toshiba_acpi_resume(struct device *device)
29cd293f 1863{
43d2fd3b 1864 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
29cd293f 1865 u32 result;
e7fdb762
BT		 1866 acpi_status status;
1867
1868 if (dev->hotkey_dev) {
1869 status = acpi_evaluate_object(dev->acpi_dev->handle, "ENAB",
1870 NULL, NULL);
1871 if (ACPI_FAILURE(status))
1872 pr_info("Unable to re-enable hotkeys\n");
29cd293f 1873
29cd293f 1874 hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &result);
e7fdb762 1875 }
29cd293f
SF		 1876
1877 return 0;
1878}
3567a4e2 1879#endif
135740de 1880
43d2fd3b
RW		 1881static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
1882 toshiba_acpi_suspend, toshiba_acpi_resume);
1883
135740de
SF		 1884static struct acpi_driver toshiba_acpi_driver = {
1885 .name = "Toshiba ACPI driver",
1886 .owner = THIS_MODULE,
1887 .ids = toshiba_device_ids,
1888 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
1889 .ops = {
1890 .add = toshiba_acpi_add,
1891 .remove = toshiba_acpi_remove,
1892 .notify = toshiba_acpi_notify,
1893 },
43d2fd3b 1894 .drv.pm = &toshiba_acpi_pm,
135740de
SF		 1895};
1896
1897static int __init toshiba_acpi_init(void)
1898{
1899 int ret;
1900
f11f999e
SF		 1901 /*
1902 * Machines with this WMI guid aren't supported due to bugs in
1903 * their AML. This check relies on wmi initializing before
1904 * toshiba_acpi to guarantee guids have been identified.
1905 */
1906 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
1907 return -ENODEV;
1908
135740de
SF		 1909 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
1910 if (!toshiba_proc_dir) {
1911 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
1912 return -ENODEV;
1913 }
1914
1915 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
1916 if (ret) {
1917 pr_err("Failed to register ACPI driver: %d\n", ret);
1918 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
1919 }
1920
1921 return ret;
1922}
1923
1924static void __exit toshiba_acpi_exit(void)
1925{
1926 acpi_bus_unregister_driver(&toshiba_acpi_driver);
1927 if (toshiba_proc_dir)
1928 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
1da177e4
LT		 1929}
1930
1931module_init(toshiba_acpi_init);
1932module_exit(toshiba_acpi_exit);
Linux 6.x block layer and io_uring tree(s)