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Merge tag 'pm+acpi-3.15-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafae...
[mirror_ubuntu-hirsute-kernel.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>
1da177e4
LT		 59#include <asm/uaccess.h>
60
1da177e4
LT		 61MODULE_AUTHOR("John Belmonte");
62MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
63MODULE_LICENSE("GPL");
64
f11f999e
SF		 65#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
66
29cd293f
SF		 67/* Scan code for Fn key on TOS1900 models */
68#define TOS1900_FN_SCAN 0x6e
69
1da177e4 70/* Toshiba ACPI method paths */
1da177e4
LT		 71#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
72
73/* Toshiba HCI interface definitions
74 *
75 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
76 * be uniform across all their models. Ideally we would just call
77 * dedicated ACPI methods instead of using this primitive interface.
78 * However the ACPI methods seem to be incomplete in some areas (for
79 * example they allow setting, but not reading, the LCD brightness value),
80 * so this is still useful.
ea6b31f4 81 *
84a6273f
AA		 82 * SCI stands for "System Configuration Interface" which aim is to
83 * conceal differences in hardware between different models.
1da177e4
LT		 84 */
85
86#define HCI_WORDS 6
87
88/* operations */
89#define HCI_SET 0xff00
90#define HCI_GET 0xfe00
84a6273f
AA		 91#define SCI_OPEN 0xf100
92#define SCI_CLOSE 0xf200
93#define SCI_GET 0xf300
94#define SCI_SET 0xf400
1da177e4
LT		 95
96/* return codes */
97#define HCI_SUCCESS 0x0000
98#define HCI_FAILURE 0x1000
99#define HCI_NOT_SUPPORTED 0x8000
100#define HCI_EMPTY 0x8c00
5a2813e9
AA		 101#define HCI_DATA_NOT_AVAILABLE 0x8d20
102#define HCI_NOT_INITIALIZED 0x8d50
84a6273f
AA		 103#define SCI_OPEN_CLOSE_OK 0x0044
104#define SCI_ALREADY_OPEN 0x8100
105#define SCI_NOT_OPENED 0x8200
fdb79081 106#define SCI_INPUT_DATA_ERROR 0x8300
84a6273f 107#define SCI_NOT_PRESENT 0x8600
1da177e4
LT		 108
109/* registers */
110#define HCI_FAN 0x0004
121b7b0d 111#define HCI_TR_BACKLIGHT 0x0005
1da177e4
LT		 112#define HCI_SYSTEM_EVENT 0x0016
113#define HCI_VIDEO_OUT 0x001c
114#define HCI_HOTKEY_EVENT 0x001e
115#define HCI_LCD_BRIGHTNESS 0x002a
c41a40c5 116#define HCI_WIRELESS 0x0056
5a2813e9 117#define HCI_ACCELEROMETER 0x006d
360f0f39 118#define HCI_KBD_ILLUMINATION 0x0095
def6c4e2 119#define HCI_ECO_MODE 0x0097
5a2813e9 120#define HCI_ACCELEROMETER2 0x00a6
fdb79081 121#define SCI_ILLUMINATION 0x014e
360f0f39 122#define SCI_KBD_ILLUM_STATUS 0x015c
9d8658ac 123#define SCI_TOUCHPAD 0x050e
1da177e4
LT		 124
125/* field definitions */
5a2813e9 126#define HCI_ACCEL_MASK 0x7fff
29cd293f
SF		 127#define HCI_HOTKEY_DISABLE 0x0b
128#define HCI_HOTKEY_ENABLE 0x09
1da177e4
LT		 129#define HCI_LCD_BRIGHTNESS_BITS 3
130#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
131#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
360f0f39 132#define HCI_MISC_SHIFT 0x10
1da177e4
LT		 133#define HCI_VIDEO_OUT_LCD 0x1
134#define HCI_VIDEO_OUT_CRT 0x2
135#define HCI_VIDEO_OUT_TV 0x4
c41a40c5 136#define HCI_WIRELESS_KILL_SWITCH 0x01
137#define HCI_WIRELESS_BT_PRESENT 0x0f
138#define HCI_WIRELESS_BT_ATTACH 0x40
139#define HCI_WIRELESS_BT_POWER 0x80
360f0f39
AA		 140#define SCI_KBD_MODE_FNZ 0x1
141#define SCI_KBD_MODE_AUTO 0x2
1da177e4 142
135740de
SF		 143struct toshiba_acpi_dev {
144 struct acpi_device *acpi_dev;
145 const char *method_hci;
146 struct rfkill *bt_rfk;
147 struct input_dev *hotkey_dev;
29cd293f 148 struct work_struct hotkey_work;
135740de
SF		 149 struct backlight_device *backlight_dev;
150 struct led_classdev led_dev;
360f0f39 151 struct led_classdev kbd_led;
def6c4e2 152 struct led_classdev eco_led;
36d03f93 153
135740de
SF		 154 int force_fan;
155 int last_key_event;
156 int key_event_valid;
360f0f39
AA		 157 int kbd_mode;
158 int kbd_time;
135740de 159
592b746c
DC		 160 unsigned int illumination_supported:1;
161 unsigned int video_supported:1;
162 unsigned int fan_supported:1;
163 unsigned int system_event_supported:1;
29cd293f
SF		 164 unsigned int ntfy_supported:1;
165 unsigned int info_supported:1;
121b7b0d 166 unsigned int tr_backlight_supported:1;
360f0f39
AA		 167 unsigned int kbd_illum_supported:1;
168 unsigned int kbd_led_registered:1;
9d8658ac 169 unsigned int touchpad_supported:1;
def6c4e2 170 unsigned int eco_supported:1;
5a2813e9 171 unsigned int accelerometer_supported:1;
360f0f39 172 unsigned int sysfs_created:1;
36d03f93 173
135740de
SF		 174 struct mutex mutex;
175};
176
29cd293f
SF		 177static struct toshiba_acpi_dev *toshiba_acpi;
178
4db42c51 179static const struct acpi_device_id toshiba_device_ids[] = {
180 {"TOS6200", 0},
c41a40c5 181 {"TOS6208", 0},
4db42c51 182 {"TOS1900", 0},
183 {"", 0},
184};
185MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
186
b859f159 187static const struct key_entry toshiba_acpi_keymap[] = {
fec278a1 188 { KE_KEY, 0x9e, { KEY_RFKILL } },
384a7cd9
DT		 189 { KE_KEY, 0x101, { KEY_MUTE } },
190 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
191 { KE_KEY, 0x103, { KEY_ZOOMIN } },
af502837
AA		 192 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
193 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
384a7cd9
DT		 194 { KE_KEY, 0x13b, { KEY_COFFEE } },
195 { KE_KEY, 0x13c, { KEY_BATTERY } },
196 { KE_KEY, 0x13d, { KEY_SLEEP } },
197 { KE_KEY, 0x13e, { KEY_SUSPEND } },
198 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
199 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
200 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
201 { KE_KEY, 0x142, { KEY_WLAN } },
af502837 202 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
a49010f5 203 { KE_KEY, 0x17f, { KEY_FN } },
384a7cd9
DT		 204 { KE_KEY, 0xb05, { KEY_PROG2 } },
205 { KE_KEY, 0xb06, { KEY_WWW } },
206 { KE_KEY, 0xb07, { KEY_MAIL } },
207 { KE_KEY, 0xb30, { KEY_STOP } },
208 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
209 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
210 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
211 { KE_KEY, 0xb5a, { KEY_MEDIA } },
af502837 212 { KE_IGNORE, 0x1430, { KEY_RESERVED } },
384a7cd9 213 { KE_END, 0 },
6335e4d5
MG		 214};
215
1da177e4
LT		 216/* utility
217 */
218
4be44fcd 219static __inline__ void _set_bit(u32 * word, u32 mask, int value)
1da177e4
LT		 220{
221 *word = (*word & ~mask) | (mask * value);
222}
223
224/* acpi interface wrappers
225 */
226
4be44fcd 227static int write_acpi_int(const char *methodName, int val)
1da177e4 228{
1da177e4
LT		 229 acpi_status status;
230
619400da 231 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
32bcd5cb 232 return (status == AE_OK) ? 0 : -EIO;
1da177e4
LT		 233}
234
1da177e4
LT		 235/* Perform a raw HCI call. Here we don't care about input or output buffer
236 * format.
237 */
135740de
SF		 238static acpi_status hci_raw(struct toshiba_acpi_dev *dev,
239 const u32 in[HCI_WORDS], u32 out[HCI_WORDS])
1da177e4
LT		 240{
241 struct acpi_object_list params;
242 union acpi_object in_objs[HCI_WORDS];
243 struct acpi_buffer results;
4be44fcd 244 union acpi_object out_objs[HCI_WORDS + 1];
1da177e4
LT		 245 acpi_status status;
246 int i;
247
248 params.count = HCI_WORDS;
249 params.pointer = in_objs;
250 for (i = 0; i < HCI_WORDS; ++i) {
251 in_objs[i].type = ACPI_TYPE_INTEGER;
252 in_objs[i].integer.value = in[i];
253 }
254
255 results.length = sizeof(out_objs);
256 results.pointer = out_objs;
257
6e02cc7e
SF		 258 status = acpi_evaluate_object(dev->acpi_dev->handle,
259 (char *)dev->method_hci, &params,
4be44fcd 260 &results);
1da177e4
LT		 261 if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) {
262 for (i = 0; i < out_objs->package.count; ++i) {
263 out[i] = out_objs->package.elements[i].integer.value;
264 }
265 }
266
267 return status;
268}
269
c41a40c5 270/* common hci tasks (get or set one or two value)
1da177e4
LT		 271 *
272 * In addition to the ACPI status, the HCI system returns a result which
273 * may be useful (such as "not supported").
274 */
275
135740de
SF		 276static acpi_status hci_write1(struct toshiba_acpi_dev *dev, u32 reg,
277 u32 in1, u32 *result)
1da177e4
LT		 278{
279 u32 in[HCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
280 u32 out[HCI_WORDS];
135740de 281 acpi_status status = hci_raw(dev, in, out);
1da177e4
LT		 282 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
283 return status;
284}
285
135740de
SF		 286static acpi_status hci_read1(struct toshiba_acpi_dev *dev, u32 reg,
287 u32 *out1, u32 *result)
1da177e4
LT		 288{
289 u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
290 u32 out[HCI_WORDS];
135740de 291 acpi_status status = hci_raw(dev, in, out);
1da177e4
LT		 292 *out1 = out[2];
293 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
294 return status;
295}
296
135740de
SF		 297static acpi_status hci_write2(struct toshiba_acpi_dev *dev, u32 reg,
298 u32 in1, u32 in2, u32 *result)
c41a40c5 299{
300 u32 in[HCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 };
301 u32 out[HCI_WORDS];
135740de 302 acpi_status status = hci_raw(dev, in, out);
c41a40c5 303 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
304 return status;
305}
306
135740de
SF		 307static acpi_status hci_read2(struct toshiba_acpi_dev *dev, u32 reg,
308 u32 *out1, u32 *out2, u32 *result)
c41a40c5 309{
310 u32 in[HCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 };
311 u32 out[HCI_WORDS];
135740de 312 acpi_status status = hci_raw(dev, in, out);
c41a40c5 313 *out1 = out[2];
314 *out2 = out[3];
315 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
316 return status;
317}
318
84a6273f
AA		 319/* common sci tasks
320 */
321
322static int sci_open(struct toshiba_acpi_dev *dev)
323{
324 u32 in[HCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
325 u32 out[HCI_WORDS];
326 acpi_status status;
327
328 status = hci_raw(dev, in, out);
329 if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
330 pr_err("ACPI call to open SCI failed\n");
331 return 0;
332 }
333
334 if (out[0] == SCI_OPEN_CLOSE_OK) {
335 return 1;
336 } else if (out[0] == SCI_ALREADY_OPEN) {
337 pr_info("Toshiba SCI already opened\n");
338 return 1;
339 } else if (out[0] == SCI_NOT_PRESENT) {
340 pr_info("Toshiba SCI is not present\n");
341 }
342
343 return 0;
344}
345
346static void sci_close(struct toshiba_acpi_dev *dev)
347{
348 u32 in[HCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
349 u32 out[HCI_WORDS];
350 acpi_status status;
351
352 status = hci_raw(dev, in, out);
353 if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
354 pr_err("ACPI call to close SCI failed\n");
355 return;
356 }
357
358 if (out[0] == SCI_OPEN_CLOSE_OK)
359 return;
360 else if (out[0] == SCI_NOT_OPENED)
361 pr_info("Toshiba SCI not opened\n");
362 else if (out[0] == SCI_NOT_PRESENT)
363 pr_info("Toshiba SCI is not present\n");
364}
365
366static acpi_status sci_read(struct toshiba_acpi_dev *dev, u32 reg,
367 u32 *out1, u32 *result)
368{
369 u32 in[HCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
370 u32 out[HCI_WORDS];
371 acpi_status status = hci_raw(dev, in, out);
372 *out1 = out[2];
373 *result = (ACPI_SUCCESS(status)) ? out[0] : HCI_FAILURE;
374 return status;
375}
376
377static acpi_status sci_write(struct toshiba_acpi_dev *dev, u32 reg,
378 u32 in1, u32 *result)
379{
380 u32 in[HCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
381 u32 out[HCI_WORDS];
382 acpi_status status = hci_raw(dev, in, out);
383 *result = (ACPI_SUCCESS(status)) ? out[0] : HCI_FAILURE;
384 return status;
385}
386
6c3f6e6c 387/* Illumination support */
135740de 388static int toshiba_illumination_available(struct toshiba_acpi_dev *dev)
6c3f6e6c 389{
fdb79081 390 u32 in[HCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
6c3f6e6c
PD		 391 u32 out[HCI_WORDS];
392 acpi_status status;
393
fdb79081
AA		 394 if (!sci_open(dev))
395 return 0;
396
135740de 397 status = hci_raw(dev, in, out);
fdb79081
AA		 398 sci_close(dev);
399 if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
400 pr_err("ACPI call to query Illumination support failed\n");
401 return 0;
402 } else if (out[0] == HCI_NOT_SUPPORTED || out[1] != 1) {
7e33460d 403 pr_info("Illumination device not available\n");
6c3f6e6c
PD		 404 return 0;
405 }
fdb79081 406
6c3f6e6c
PD		 407 return 1;
408}
409
410static void toshiba_illumination_set(struct led_classdev *cdev,
411 enum led_brightness brightness)
412{
135740de
SF		 413 struct toshiba_acpi_dev *dev = container_of(cdev,
414 struct toshiba_acpi_dev, led_dev);
fdb79081 415 u32 state, result;
6c3f6e6c
PD		 416 acpi_status status;
417
418 /* First request : initialize communication. */
fdb79081 419 if (!sci_open(dev))
6c3f6e6c 420 return;
6c3f6e6c 421
fdb79081
AA		 422 /* Switch the illumination on/off */
423 state = brightness ? 1 : 0;
424 status = sci_write(dev, SCI_ILLUMINATION, state, &result);
425 sci_close(dev);
426 if (ACPI_FAILURE(status)) {
427 pr_err("ACPI call for illumination failed\n");
428 return;
429 } else if (result == HCI_NOT_SUPPORTED) {
430 pr_info("Illumination not supported\n");
431 return;
6c3f6e6c 432 }
6c3f6e6c
PD		 433}
434
435static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
436{
135740de
SF		 437 struct toshiba_acpi_dev *dev = container_of(cdev,
438 struct toshiba_acpi_dev, led_dev);
fdb79081 439 u32 state, result;
6c3f6e6c 440 acpi_status status;
6c3f6e6c
PD		 441
442 /* First request : initialize communication. */
fdb79081 443 if (!sci_open(dev))
6c3f6e6c 444 return LED_OFF;
6c3f6e6c
PD		 445
446 /* Check the illumination */
fdb79081
AA		 447 status = sci_read(dev, SCI_ILLUMINATION, &state, &result);
448 sci_close(dev);
449 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
450 pr_err("ACPI call for illumination failed\n");
451 return LED_OFF;
452 } else if (result == HCI_NOT_SUPPORTED) {
453 pr_info("Illumination not supported\n");
6c3f6e6c
PD		 454 return LED_OFF;
455 }
456
fdb79081 457 return state ? LED_FULL : LED_OFF;
6c3f6e6c 458}
ea6b31f4 459
360f0f39
AA		 460/* KBD Illumination */
461static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
462{
463 u32 result;
464 acpi_status status;
465
466 if (!sci_open(dev))
467 return -EIO;
468
469 status = sci_write(dev, SCI_KBD_ILLUM_STATUS, time, &result);
470 sci_close(dev);
471 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
472 pr_err("ACPI call to set KBD backlight status failed\n");
473 return -EIO;
474 } else if (result == HCI_NOT_SUPPORTED) {
475 pr_info("Keyboard backlight status not supported\n");
476 return -ENODEV;
477 }
478
479 return 0;
480}
481
482static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
483{
484 u32 result;
485 acpi_status status;
486
487 if (!sci_open(dev))
488 return -EIO;
489
490 status = sci_read(dev, SCI_KBD_ILLUM_STATUS, time, &result);
491 sci_close(dev);
492 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
493 pr_err("ACPI call to get KBD backlight status failed\n");
494 return -EIO;
495 } else if (result == HCI_NOT_SUPPORTED) {
496 pr_info("Keyboard backlight status not supported\n");
497 return -ENODEV;
498 }
499
500 return 0;
501}
502
503static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
504{
505 struct toshiba_acpi_dev *dev = container_of(cdev,
506 struct toshiba_acpi_dev, kbd_led);
507 u32 state, result;
508 acpi_status status;
509
510 /* Check the keyboard backlight state */
511 status = hci_read1(dev, HCI_KBD_ILLUMINATION, &state, &result);
512 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
513 pr_err("ACPI call to get the keyboard backlight failed\n");
514 return LED_OFF;
515 } else if (result == HCI_NOT_SUPPORTED) {
516 pr_info("Keyboard backlight not supported\n");
517 return LED_OFF;
518 }
519
520 return state ? LED_FULL : LED_OFF;
521}
522
523static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
524 enum led_brightness brightness)
525{
526 struct toshiba_acpi_dev *dev = container_of(cdev,
527 struct toshiba_acpi_dev, kbd_led);
528 u32 state, result;
529 acpi_status status;
530
531 /* Set the keyboard backlight state */
532 state = brightness ? 1 : 0;
533 status = hci_write1(dev, HCI_KBD_ILLUMINATION, state, &result);
534 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
535 pr_err("ACPI call to set KBD Illumination mode failed\n");
536 return;
537 } else if (result == HCI_NOT_SUPPORTED) {
538 pr_info("Keyboard backlight not supported\n");
539 return;
540 }
541}
ea6b31f4 542
9d8658ac
AA		 543/* TouchPad support */
544static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
545{
546 u32 result;
547 acpi_status status;
548
549 if (!sci_open(dev))
550 return -EIO;
551
552 status = sci_write(dev, SCI_TOUCHPAD, state, &result);
553 sci_close(dev);
554 if (ACPI_FAILURE(status)) {
555 pr_err("ACPI call to set the touchpad failed\n");
556 return -EIO;
557 } else if (result == HCI_NOT_SUPPORTED) {
558 return -ENODEV;
559 }
560
561 return 0;
562}
563
564static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
565{
566 u32 result;
567 acpi_status status;
568
569 if (!sci_open(dev))
570 return -EIO;
571
572 status = sci_read(dev, SCI_TOUCHPAD, state, &result);
573 sci_close(dev);
574 if (ACPI_FAILURE(status)) {
575 pr_err("ACPI call to query the touchpad failed\n");
576 return -EIO;
577 } else if (result == HCI_NOT_SUPPORTED) {
578 return -ENODEV;
579 }
580
581 return 0;
582}
6c3f6e6c 583
def6c4e2
AA		 584/* Eco Mode support */
585static int toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
586{
587 acpi_status status;
588 u32 in[HCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
589 u32 out[HCI_WORDS];
590
591 status = hci_raw(dev, in, out);
592 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
593 pr_info("ACPI call to get ECO led failed\n");
594 return 0;
595 }
596
597 return 1;
598}
599
600static enum led_brightness toshiba_eco_mode_get_status(struct led_classdev *cdev)
601{
602 struct toshiba_acpi_dev *dev = container_of(cdev,
603 struct toshiba_acpi_dev, eco_led);
604 u32 in[HCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
605 u32 out[HCI_WORDS];
606 acpi_status status;
607
608 status = hci_raw(dev, in, out);
609 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
610 pr_err("ACPI call to get ECO led failed\n");
611 return LED_OFF;
612 }
613
614 return out[2] ? LED_FULL : LED_OFF;
615}
616
617static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
618 enum led_brightness brightness)
619{
620 struct toshiba_acpi_dev *dev = container_of(cdev,
621 struct toshiba_acpi_dev, eco_led);
622 u32 in[HCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
623 u32 out[HCI_WORDS];
624 acpi_status status;
625
626 /* Switch the Eco Mode led on/off */
627 in[2] = (brightness) ? 1 : 0;
628 status = hci_raw(dev, in, out);
629 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
630 pr_err("ACPI call to set ECO led failed\n");
631 return;
632 }
633}
ea6b31f4 634
5a2813e9
AA		 635/* Accelerometer support */
636static int toshiba_accelerometer_supported(struct toshiba_acpi_dev *dev)
637{
638 u32 in[HCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
639 u32 out[HCI_WORDS];
640 acpi_status status;
641
642 /* Check if the accelerometer call exists,
643 * this call also serves as initialization
644 */
645 status = hci_raw(dev, in, out);
646 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
647 pr_err("ACPI call to query the accelerometer failed\n");
648 return -EIO;
649 } else if (out[0] == HCI_DATA_NOT_AVAILABLE ||
650 out[0] == HCI_NOT_INITIALIZED) {
651 pr_err("Accelerometer not initialized\n");
652 return -EIO;
653 } else if (out[0] == HCI_NOT_SUPPORTED) {
654 pr_info("Accelerometer not supported\n");
655 return -ENODEV;
656 }
657
658 return 0;
659}
660
661static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
662 u32 *xy, u32 *z)
663{
664 u32 in[HCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
665 u32 out[HCI_WORDS];
666 acpi_status status;
667
668 /* Check the Accelerometer status */
669 status = hci_raw(dev, in, out);
670 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
671 pr_err("ACPI call to query the accelerometer failed\n");
672 return -EIO;
673 }
674
675 *xy = out[2];
676 *z = out[4];
677
678 return 0;
679}
def6c4e2 680
c41a40c5 681/* Bluetooth rfkill handlers */
682
135740de 683static u32 hci_get_bt_present(struct toshiba_acpi_dev *dev, bool *present)
c41a40c5 684{
685 u32 hci_result;
686 u32 value, value2;
687
688 value = 0;
689 value2 = 0;
135740de 690 hci_read2(dev, HCI_WIRELESS, &value, &value2, &hci_result);
c41a40c5 691 if (hci_result == HCI_SUCCESS)
692 *present = (value & HCI_WIRELESS_BT_PRESENT) ? true : false;
693
694 return hci_result;
695}
696
135740de 697static u32 hci_get_radio_state(struct toshiba_acpi_dev *dev, bool *radio_state)
c41a40c5 698{
699 u32 hci_result;
700 u32 value, value2;
701
702 value = 0;
703 value2 = 0x0001;
135740de 704 hci_read2(dev, HCI_WIRELESS, &value, &value2, &hci_result);
c41a40c5 705
706 *radio_state = value & HCI_WIRELESS_KILL_SWITCH;
707 return hci_result;
708}
709
19d337df 710static int bt_rfkill_set_block(void *data, bool blocked)
c41a40c5 711{
19d337df 712 struct toshiba_acpi_dev *dev = data;
c41a40c5 713 u32 result1, result2;
714 u32 value;
19d337df 715 int err;
c41a40c5 716 bool radio_state;
c41a40c5 717
19d337df 718 value = (blocked == false);
c41a40c5 719
19d337df 720 mutex_lock(&dev->mutex);
135740de 721 if (hci_get_radio_state(dev, &radio_state) != HCI_SUCCESS) {
32bcd5cb 722 err = -EIO;
19d337df
JB		 723 goto out;
724 }
c41a40c5 725
19d337df
JB		 726 if (!radio_state) {
727 err = 0;
728 goto out;
c41a40c5 729 }
730
135740de
SF		 731 hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_POWER, &result1);
732 hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_ATTACH, &result2);
c41a40c5 733
734 if (result1 != HCI_SUCCESS || result2 != HCI_SUCCESS)
32bcd5cb 735 err = -EIO;
19d337df
JB		 736 else
737 err = 0;
738 out:
739 mutex_unlock(&dev->mutex);
740 return err;
c41a40c5 741}
742
19d337df 743static void bt_rfkill_poll(struct rfkill *rfkill, void *data)
c41a40c5 744{
c41a40c5 745 bool new_rfk_state;
746 bool value;
747 u32 hci_result;
19d337df
JB		 748 struct toshiba_acpi_dev *dev = data;
749
750 mutex_lock(&dev->mutex);
c41a40c5 751
135740de 752 hci_result = hci_get_radio_state(dev, &value);
19d337df
JB		 753 if (hci_result != HCI_SUCCESS) {
754 /* Can't do anything useful */
755 mutex_unlock(&dev->mutex);
82e7784f 756 return;
19d337df 757 }
c41a40c5 758
759 new_rfk_state = value;
760
c41a40c5 761 mutex_unlock(&dev->mutex);
762
19d337df
JB		 763 if (rfkill_set_hw_state(rfkill, !new_rfk_state))
764 bt_rfkill_set_block(data, true);
c41a40c5 765}
766
19d337df
JB		 767static const struct rfkill_ops toshiba_rfk_ops = {
768 .set_block = bt_rfkill_set_block,
769 .poll = bt_rfkill_poll,
770};
771
121b7b0d
AI		 772static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, bool *enabled)
773{
774 u32 hci_result;
775 u32 status;
776
777 hci_read1(dev, HCI_TR_BACKLIGHT, &status, &hci_result);
778 *enabled = !status;
779 return hci_result == HCI_SUCCESS ? 0 : -EIO;
780}
781
782static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, bool enable)
783{
784 u32 hci_result;
785 u32 value = !enable;
786
787 hci_write1(dev, HCI_TR_BACKLIGHT, value, &hci_result);
788 return hci_result == HCI_SUCCESS ? 0 : -EIO;
789}
790
4be44fcd 791static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ;
1da177e4 792
62cce752 793static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1da177e4
LT		 794{
795 u32 hci_result;
796 u32 value;
121b7b0d
AI		 797 int brightness = 0;
798
799 if (dev->tr_backlight_supported) {
800 bool enabled;
801 int ret = get_tr_backlight_status(dev, &enabled);
802 if (ret)
803 return ret;
804 if (enabled)
805 return 0;
806 brightness++;
807 }
1da177e4 808
135740de 809 hci_read1(dev, HCI_LCD_BRIGHTNESS, &value, &hci_result);
32bcd5cb 810 if (hci_result == HCI_SUCCESS)
121b7b0d 811 return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT);
32bcd5cb
SF		 812
813 return -EIO;
c9263557
HM		 814}
815
62cce752
SF		 816static int get_lcd_brightness(struct backlight_device *bd)
817{
818 struct toshiba_acpi_dev *dev = bl_get_data(bd);
819 return __get_lcd_brightness(dev);
820}
821
936c8bcd 822static int lcd_proc_show(struct seq_file *m, void *v)
c9263557 823{
135740de
SF		 824 struct toshiba_acpi_dev *dev = m->private;
825 int value;
121b7b0d 826 int levels;
135740de
SF		 827
828 if (!dev->backlight_dev)
829 return -ENODEV;
c9263557 830
121b7b0d 831 levels = dev->backlight_dev->props.max_brightness + 1;
62cce752 832 value = get_lcd_brightness(dev->backlight_dev);
c9263557 833 if (value >= 0) {
936c8bcd 834 seq_printf(m, "brightness: %d\n", value);
121b7b0d 835 seq_printf(m, "brightness_levels: %d\n", levels);
32bcd5cb 836 return 0;
1da177e4
LT		 837 }
838
32bcd5cb
SF		 839 pr_err("Error reading LCD brightness\n");
840 return -EIO;
936c8bcd
AD		 841}
842
843static int lcd_proc_open(struct inode *inode, struct file *file)
844{
d9dda78b 845 return single_open(file, lcd_proc_show, PDE_DATA(inode));
1da177e4
LT		 846}
847
62cce752 848static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
c9263557
HM		 849{
850 u32 hci_result;
851
121b7b0d
AI		 852 if (dev->tr_backlight_supported) {
853 bool enable = !value;
854 int ret = set_tr_backlight_status(dev, enable);
855 if (ret)
856 return ret;
857 if (value)
858 value--;
859 }
860
c9263557 861 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
135740de 862 hci_write1(dev, HCI_LCD_BRIGHTNESS, value, &hci_result);
32bcd5cb 863 return hci_result == HCI_SUCCESS ? 0 : -EIO;
c9263557
HM		 864}
865
866static int set_lcd_status(struct backlight_device *bd)
867{
135740de 868 struct toshiba_acpi_dev *dev = bl_get_data(bd);
62cce752 869 return set_lcd_brightness(dev, bd->props.brightness);
c9263557
HM		 870}
871
936c8bcd
AD		 872static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
873 size_t count, loff_t *pos)
1da177e4 874{
d9dda78b 875 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
936c8bcd
AD		 876 char cmd[42];
877 size_t len;
1da177e4 878 int value;
c8af57eb 879 int ret;
121b7b0d 880 int levels = dev->backlight_dev->props.max_brightness + 1;
1da177e4 881
936c8bcd
AD		 882 len = min(count, sizeof(cmd) - 1);
883 if (copy_from_user(cmd, buf, len))
884 return -EFAULT;
885 cmd[len] = '\0';
886
887 if (sscanf(cmd, " brightness : %i", &value) == 1 &&
121b7b0d 888 value >= 0 && value < levels) {
62cce752 889 ret = set_lcd_brightness(dev, value);
c8af57eb
MO		 890 if (ret == 0)
891 ret = count;
892 } else {
c9263557 893 ret = -EINVAL;
c8af57eb 894 }
c9263557 895 return ret;
1da177e4
LT		 896}
897
936c8bcd
AD		 898static const struct file_operations lcd_proc_fops = {
899 .owner = THIS_MODULE,
900 .open = lcd_proc_open,
901 .read = seq_read,
902 .llseek = seq_lseek,
903 .release = single_release,
904 .write = lcd_proc_write,
905};
906
36d03f93
SF		 907static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
908{
909 u32 hci_result;
910
911 hci_read1(dev, HCI_VIDEO_OUT, status, &hci_result);
912 return hci_result == HCI_SUCCESS ? 0 : -EIO;
913}
914
936c8bcd 915static int video_proc_show(struct seq_file *m, void *v)
1da177e4 916{
135740de 917 struct toshiba_acpi_dev *dev = m->private;
1da177e4 918 u32 value;
36d03f93 919 int ret;
1da177e4 920
36d03f93
SF		 921 ret = get_video_status(dev, &value);
922 if (!ret) {
1da177e4
LT		 923 int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
924 int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
4be44fcd 925 int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
936c8bcd
AD		 926 seq_printf(m, "lcd_out: %d\n", is_lcd);
927 seq_printf(m, "crt_out: %d\n", is_crt);
928 seq_printf(m, "tv_out: %d\n", is_tv);
1da177e4
LT		 929 }
930
36d03f93 931 return ret;
1da177e4
LT		 932}
933
936c8bcd 934static int video_proc_open(struct inode *inode, struct file *file)
1da177e4 935{
d9dda78b 936 return single_open(file, video_proc_show, PDE_DATA(inode));
936c8bcd
AD		 937}
938
939static ssize_t video_proc_write(struct file *file, const char __user *buf,
940 size_t count, loff_t *pos)
941{
d9dda78b 942 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
936c8bcd 943 char *cmd, *buffer;
36d03f93 944 int ret;
1da177e4
LT		 945 int value;
946 int remain = count;
947 int lcd_out = -1;
948 int crt_out = -1;
949 int tv_out = -1;
b4482a4b 950 u32 video_out;
1da177e4 951
936c8bcd
AD		 952 cmd = kmalloc(count + 1, GFP_KERNEL);
953 if (!cmd)
954 return -ENOMEM;
955 if (copy_from_user(cmd, buf, count)) {
956 kfree(cmd);
957 return -EFAULT;
958 }
959 cmd[count] = '\0';
960
961 buffer = cmd;
962
1da177e4
LT		 963 /* scan expression. Multiple expressions may be delimited with ;
964 *
965 * NOTE: to keep scanning simple, invalid fields are ignored
966 */
967 while (remain) {
968 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
969 lcd_out = value & 1;
970 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
971 crt_out = value & 1;
972 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
973 tv_out = value & 1;
974 /* advance to one character past the next ; */
975 do {
976 ++buffer;
977 --remain;
978 }
4be44fcd 979 while (remain && *(buffer - 1) != ';');
1da177e4
LT		 980 }
981
936c8bcd
AD		 982 kfree(cmd);
983
36d03f93
SF		 984 ret = get_video_status(dev, &video_out);
985 if (!ret) {
9e113e00 986 unsigned int new_video_out = video_out;
1da177e4
LT		 987 if (lcd_out != -1)
988 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
989 if (crt_out != -1)
990 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
991 if (tv_out != -1)
992 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
993 /* To avoid unnecessary video disruption, only write the new
994 * video setting if something changed. */
995 if (new_video_out != video_out)
32bcd5cb 996 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1da177e4
LT		 997 }
998
32bcd5cb 999 return ret ? ret : count;
1da177e4
LT		 1000}
1001
936c8bcd
AD		 1002static const struct file_operations video_proc_fops = {
1003 .owner = THIS_MODULE,
1004 .open = video_proc_open,
1005 .read = seq_read,
1006 .llseek = seq_lseek,
1007 .release = single_release,
1008 .write = video_proc_write,
1009};
1010
36d03f93
SF		 1011static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1012{
1013 u32 hci_result;
1014
1015 hci_read1(dev, HCI_FAN, status, &hci_result);
1016 return hci_result == HCI_SUCCESS ? 0 : -EIO;
1017}
1018
936c8bcd 1019static int fan_proc_show(struct seq_file *m, void *v)
1da177e4 1020{
135740de 1021 struct toshiba_acpi_dev *dev = m->private;
36d03f93 1022 int ret;
1da177e4
LT		 1023 u32 value;
1024
36d03f93
SF		 1025 ret = get_fan_status(dev, &value);
1026 if (!ret) {
936c8bcd 1027 seq_printf(m, "running: %d\n", (value > 0));
135740de 1028 seq_printf(m, "force_on: %d\n", dev->force_fan);
1da177e4
LT		 1029 }
1030
36d03f93 1031 return ret;
936c8bcd
AD		 1032}
1033
1034static int fan_proc_open(struct inode *inode, struct file *file)
1035{
d9dda78b 1036 return single_open(file, fan_proc_show, PDE_DATA(inode));
1da177e4
LT		 1037}
1038
936c8bcd
AD		 1039static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1040 size_t count, loff_t *pos)
1da177e4 1041{
d9dda78b 1042 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
936c8bcd
AD		 1043 char cmd[42];
1044 size_t len;
1da177e4
LT		 1045 int value;
1046 u32 hci_result;
1047
936c8bcd
AD		 1048 len = min(count, sizeof(cmd) - 1);
1049 if (copy_from_user(cmd, buf, len))
1050 return -EFAULT;
1051 cmd[len] = '\0';
1052
1053 if (sscanf(cmd, " force_on : %i", &value) == 1 &&
4be44fcd 1054 value >= 0 && value <= 1) {
135740de 1055 hci_write1(dev, HCI_FAN, value, &hci_result);
1da177e4 1056 if (hci_result != HCI_SUCCESS)
32bcd5cb 1057 return -EIO;
1da177e4 1058 else
135740de 1059 dev->force_fan = value;
1da177e4
LT		 1060 } else {
1061 return -EINVAL;
1062 }
1063
1064 return count;
1065}
1066
936c8bcd
AD		 1067static const struct file_operations fan_proc_fops = {
1068 .owner = THIS_MODULE,
1069 .open = fan_proc_open,
1070 .read = seq_read,
1071 .llseek = seq_lseek,
1072 .release = single_release,
1073 .write = fan_proc_write,
1074};
1075
1076static int keys_proc_show(struct seq_file *m, void *v)
1da177e4 1077{
135740de 1078 struct toshiba_acpi_dev *dev = m->private;
1da177e4
LT		 1079 u32 hci_result;
1080 u32 value;
1081
11948b93 1082 if (!dev->key_event_valid && dev->system_event_supported) {
135740de 1083 hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result);
1da177e4 1084 if (hci_result == HCI_SUCCESS) {
135740de
SF		 1085 dev->key_event_valid = 1;
1086 dev->last_key_event = value;
1da177e4
LT		 1087 } else if (hci_result == HCI_EMPTY) {
1088 /* better luck next time */
1089 } else if (hci_result == HCI_NOT_SUPPORTED) {
1090 /* This is a workaround for an unresolved issue on
1091 * some machines where system events sporadically
1092 * become disabled. */
135740de 1093 hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
7e33460d 1094 pr_notice("Re-enabled hotkeys\n");
1da177e4 1095 } else {
7e33460d 1096 pr_err("Error reading hotkey status\n");
32bcd5cb 1097 return -EIO;
1da177e4
LT		 1098 }
1099 }
1100
135740de
SF		 1101 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1102 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
936c8bcd
AD		 1103 return 0;
1104}
1da177e4 1105
936c8bcd
AD		 1106static int keys_proc_open(struct inode *inode, struct file *file)
1107{
d9dda78b 1108 return single_open(file, keys_proc_show, PDE_DATA(inode));
1da177e4
LT		 1109}
1110
936c8bcd
AD		 1111static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1112 size_t count, loff_t *pos)
1da177e4 1113{
d9dda78b 1114 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
936c8bcd
AD		 1115 char cmd[42];
1116 size_t len;
1da177e4
LT		 1117 int value;
1118
936c8bcd
AD		 1119 len = min(count, sizeof(cmd) - 1);
1120 if (copy_from_user(cmd, buf, len))
1121 return -EFAULT;
1122 cmd[len] = '\0';
1123
1124 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0) {
135740de 1125 dev->key_event_valid = 0;
1da177e4
LT		 1126 } else {
1127 return -EINVAL;
1128 }
1129
1130 return count;
1131}
1132
936c8bcd
AD		 1133static const struct file_operations keys_proc_fops = {
1134 .owner = THIS_MODULE,
1135 .open = keys_proc_open,
1136 .read = seq_read,
1137 .llseek = seq_lseek,
1138 .release = single_release,
1139 .write = keys_proc_write,
1140};
1141
1142static int version_proc_show(struct seq_file *m, void *v)
1da177e4 1143{
936c8bcd
AD		 1144 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1145 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1146 return 0;
1da177e4
LT		 1147}
1148
936c8bcd
AD		 1149static int version_proc_open(struct inode *inode, struct file *file)
1150{
d9dda78b 1151 return single_open(file, version_proc_show, PDE_DATA(inode));
936c8bcd
AD		 1152}
1153
1154static const struct file_operations version_proc_fops = {
1155 .owner = THIS_MODULE,
1156 .open = version_proc_open,
1157 .read = seq_read,
1158 .llseek = seq_lseek,
1159 .release = single_release,
1160};
1161
1da177e4
LT		 1162/* proc and module init
1163 */
1164
1165#define PROC_TOSHIBA "toshiba"
1166
b859f159 1167static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1da177e4 1168{
36d03f93
SF		 1169 if (dev->backlight_dev)
1170 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1171 &lcd_proc_fops, dev);
1172 if (dev->video_supported)
1173 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1174 &video_proc_fops, dev);
1175 if (dev->fan_supported)
1176 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1177 &fan_proc_fops, dev);
1178 if (dev->hotkey_dev)
1179 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1180 &keys_proc_fops, dev);
135740de
SF		 1181 proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1182 &version_proc_fops, dev);
1da177e4
LT		 1183}
1184
36d03f93 1185static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1da177e4 1186{
36d03f93
SF		 1187 if (dev->backlight_dev)
1188 remove_proc_entry("lcd", toshiba_proc_dir);
1189 if (dev->video_supported)
1190 remove_proc_entry("video", toshiba_proc_dir);
1191 if (dev->fan_supported)
1192 remove_proc_entry("fan", toshiba_proc_dir);
1193 if (dev->hotkey_dev)
1194 remove_proc_entry("keys", toshiba_proc_dir);
936c8bcd 1195 remove_proc_entry("version", toshiba_proc_dir);
1da177e4
LT		 1196}
1197
acc2472e 1198static const struct backlight_ops toshiba_backlight_data = {
121b7b0d 1199 .options = BL_CORE_SUSPENDRESUME,
62cce752
SF		 1200 .get_brightness = get_lcd_brightness,
1201 .update_status = set_lcd_status,
c9263557 1202};
ea6b31f4 1203
360f0f39
AA		 1204/*
1205 * Sysfs files
1206 */
1207
1208static ssize_t toshiba_kbd_bl_mode_store(struct device *dev,
1209 struct device_attribute *attr,
1210 const char *buf, size_t count)
1211{
1212 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1213 int mode = -1;
1214 int time = -1;
1215
1216 if (sscanf(buf, "%i", &mode) != 1 && (mode != 2 || mode != 1))
1217 return -EINVAL;
1218
1219 /* Set the Keyboard Backlight Mode where:
1220 * Mode - Auto (2) | FN-Z (1)
1221 * Auto - KBD backlight turns off automatically in given time
1222 * FN-Z - KBD backlight "toggles" when hotkey pressed
1223 */
1224 if (mode != -1 && toshiba->kbd_mode != mode) {
1225 time = toshiba->kbd_time << HCI_MISC_SHIFT;
1226 time = time + toshiba->kbd_mode;
1227 if (toshiba_kbd_illum_status_set(toshiba, time) < 0)
1228 return -EIO;
1229 toshiba->kbd_mode = mode;
1230 }
1231
1232 return count;
1233}
1234
1235static ssize_t toshiba_kbd_bl_mode_show(struct device *dev,
1236 struct device_attribute *attr,
1237 char *buf)
1238{
1239 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1240 u32 time;
1241
1242 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1243 return -EIO;
1244
1245 return sprintf(buf, "%i\n", time & 0x07);
1246}
1247
1248static ssize_t toshiba_kbd_bl_timeout_store(struct device *dev,
1249 struct device_attribute *attr,
1250 const char *buf, size_t count)
1251{
1252 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1253 int time = -1;
1254
1255 if (sscanf(buf, "%i", &time) != 1 && (time < 0 || time > 60))
1256 return -EINVAL;
1257
1258 /* Set the Keyboard Backlight Timeout: 0-60 seconds */
1259 if (time != -1 && toshiba->kbd_time != time) {
1260 time = time << HCI_MISC_SHIFT;
1261 time = (toshiba->kbd_mode == SCI_KBD_MODE_AUTO) ?
1262 time + 1 : time + 2;
1263 if (toshiba_kbd_illum_status_set(toshiba, time) < 0)
1264 return -EIO;
1265 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1266 }
1267
1268 return count;
1269}
1270
1271static ssize_t toshiba_kbd_bl_timeout_show(struct device *dev,
1272 struct device_attribute *attr,
1273 char *buf)
1274{
1275 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1276 u32 time;
1277
1278 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1279 return -EIO;
1280
1281 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1282}
ea6b31f4 1283
9d8658ac
AA		 1284static ssize_t toshiba_touchpad_store(struct device *dev,
1285 struct device_attribute *attr,
1286 const char *buf, size_t count)
1287{
1288 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1289 int state;
1290
1291 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1292 if (sscanf(buf, "%i", &state) == 1 && (state == 0 || state == 1)) {
1293 if (toshiba_touchpad_set(toshiba, state) < 0)
1294 return -EIO;
1295 }
1296
1297 return count;
1298}
1299
1300static ssize_t toshiba_touchpad_show(struct device *dev,
1301 struct device_attribute *attr, char *buf)
1302{
1303 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1304 u32 state;
1305 int ret;
1306
1307 ret = toshiba_touchpad_get(toshiba, &state);
1308 if (ret < 0)
1309 return ret;
1310
1311 return sprintf(buf, "%i\n", state);
1312}
ea6b31f4 1313
5a2813e9
AA		 1314static ssize_t toshiba_position_show(struct device *dev,
1315 struct device_attribute *attr, char *buf)
1316{
1317 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1318 u32 xyval, zval, tmp;
1319 u16 x, y, z;
1320 int ret;
1321
1322 xyval = zval = 0;
1323 ret = toshiba_accelerometer_get(toshiba, &xyval, &zval);
1324 if (ret < 0)
1325 return ret;
1326
1327 x = xyval & HCI_ACCEL_MASK;
1328 tmp = xyval >> HCI_MISC_SHIFT;
1329 y = tmp & HCI_ACCEL_MASK;
1330 z = zval & HCI_ACCEL_MASK;
1331
1332 return sprintf(buf, "%d %d %d\n", x, y, z);
1333}
360f0f39
AA		 1334
1335static DEVICE_ATTR(kbd_backlight_mode, S_IRUGO | S_IWUSR,
1336 toshiba_kbd_bl_mode_show, toshiba_kbd_bl_mode_store);
1337static DEVICE_ATTR(kbd_backlight_timeout, S_IRUGO | S_IWUSR,
1338 toshiba_kbd_bl_timeout_show, toshiba_kbd_bl_timeout_store);
9d8658ac
AA		 1339static DEVICE_ATTR(touchpad, S_IRUGO | S_IWUSR,
1340 toshiba_touchpad_show, toshiba_touchpad_store);
5a2813e9 1341static DEVICE_ATTR(position, S_IRUGO, toshiba_position_show, NULL);
360f0f39
AA		 1342
1343static struct attribute *toshiba_attributes[] = {
1344 &dev_attr_kbd_backlight_mode.attr,
1345 &dev_attr_kbd_backlight_timeout.attr,
9d8658ac 1346 &dev_attr_touchpad.attr,
5a2813e9 1347 &dev_attr_position.attr,
360f0f39
AA		 1348 NULL,
1349};
1350
1351static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
1352 struct attribute *attr, int idx)
1353{
1354 struct device *dev = container_of(kobj, struct device, kobj);
1355 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
1356 bool exists = true;
1357
1358 if (attr == &dev_attr_kbd_backlight_mode.attr)
1359 exists = (drv->kbd_illum_supported) ? true : false;
1360 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
1361 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
9d8658ac
AA		 1362 else if (attr == &dev_attr_touchpad.attr)
1363 exists = (drv->touchpad_supported) ? true : false;
5a2813e9
AA		 1364 else if (attr == &dev_attr_position.attr)
1365 exists = (drv->accelerometer_supported) ? true : false;
360f0f39
AA		 1366
1367 return exists ? attr->mode : 0;
1368}
1369
1370static struct attribute_group toshiba_attr_group = {
1371 .is_visible = toshiba_sysfs_is_visible,
1372 .attrs = toshiba_attributes,
1373};
c9263557 1374
29cd293f
SF		 1375static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
1376 struct serio *port)
1377{
1378 if (str & 0x20)
1379 return false;
1380
1381 if (unlikely(data == 0xe0))
1382 return false;
1383
1384 if ((data & 0x7f) == TOS1900_FN_SCAN) {
1385 schedule_work(&toshiba_acpi->hotkey_work);
1386 return true;
1387 }
1388
1389 return false;
1390}
1391
1392static void toshiba_acpi_hotkey_work(struct work_struct *work)
1393{
1394 acpi_handle ec_handle = ec_get_handle();
1395 acpi_status status;
1396
1397 if (!ec_handle)
1398 return;
1399
1400 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
1401 if (ACPI_FAILURE(status))
1402 pr_err("ACPI NTFY method execution failed\n");
1403}
1404
1405/*
1406 * Returns hotkey scancode, or < 0 on failure.
1407 */
1408static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
1409{
74facaf7 1410 unsigned long long value;
29cd293f
SF		 1411 acpi_status status;
1412
74facaf7
ZR		 1413 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
1414 NULL, &value);
1415 if (ACPI_FAILURE(status)) {
29cd293f
SF		 1416 pr_err("ACPI INFO method execution failed\n");
1417 return -EIO;
1418 }
1419
74facaf7 1420 return value;
29cd293f
SF		 1421}
1422
1423static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
1424 int scancode)
1425{
1426 if (scancode == 0x100)
1427 return;
1428
1429 /* act on key press; ignore key release */
1430 if (scancode & 0x80)
1431 return;
1432
1433 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
1434 pr_info("Unknown key %x\n", scancode);
1435}
1436
b859f159 1437static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
6335e4d5
MG		 1438{
1439 acpi_status status;
e2e19606 1440 acpi_handle ec_handle;
384a7cd9 1441 int error;
29cd293f 1442 u32 hci_result;
6335e4d5 1443
135740de 1444 dev->hotkey_dev = input_allocate_device();
b222cca6 1445 if (!dev->hotkey_dev)
6335e4d5 1446 return -ENOMEM;
6335e4d5 1447
135740de 1448 dev->hotkey_dev->name = "Toshiba input device";
6e02cc7e 1449 dev->hotkey_dev->phys = "toshiba_acpi/input0";
135740de 1450 dev->hotkey_dev->id.bustype = BUS_HOST;
6335e4d5 1451
135740de 1452 error = sparse_keymap_setup(dev->hotkey_dev, toshiba_acpi_keymap, NULL);
384a7cd9
DT		 1453 if (error)
1454 goto err_free_dev;
1455
29cd293f
SF		 1456 /*
1457 * For some machines the SCI responsible for providing hotkey
1458 * notification doesn't fire. We can trigger the notification
1459 * whenever the Fn key is pressed using the NTFY method, if
1460 * supported, so if it's present set up an i8042 key filter
1461 * for this purpose.
1462 */
1463 status = AE_ERROR;
1464 ec_handle = ec_get_handle();
e2e19606 1465 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
29cd293f
SF		 1466 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
1467
1468 error = i8042_install_filter(toshiba_acpi_i8042_filter);
1469 if (error) {
1470 pr_err("Error installing key filter\n");
1471 goto err_free_keymap;
1472 }
1473
1474 dev->ntfy_supported = 1;
1475 }
1476
1477 /*
1478 * Determine hotkey query interface. Prefer using the INFO
1479 * method when it is available.
1480 */
e2e19606 1481 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
29cd293f 1482 dev->info_supported = 1;
e2e19606 1483 else {
29cd293f
SF		 1484 hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
1485 if (hci_result == HCI_SUCCESS)
1486 dev->system_event_supported = 1;
1487 }
1488
1489 if (!dev->info_supported && !dev->system_event_supported) {
1490 pr_warn("No hotkey query interface found\n");
1491 goto err_remove_filter;
1492 }
1493
6e02cc7e 1494 status = acpi_evaluate_object(dev->acpi_dev->handle, "ENAB", NULL, NULL);
384a7cd9 1495 if (ACPI_FAILURE(status)) {
7e33460d 1496 pr_info("Unable to enable hotkeys\n");
384a7cd9 1497 error = -ENODEV;
29cd293f 1498 goto err_remove_filter;
6335e4d5
MG		 1499 }
1500
135740de 1501 error = input_register_device(dev->hotkey_dev);
384a7cd9 1502 if (error) {
7e33460d 1503 pr_info("Unable to register input device\n");
29cd293f 1504 goto err_remove_filter;
6335e4d5
MG		 1505 }
1506
29cd293f 1507 hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &hci_result);
6335e4d5 1508 return 0;
384a7cd9 1509
29cd293f
SF		 1510 err_remove_filter:
1511 if (dev->ntfy_supported)
1512 i8042_remove_filter(toshiba_acpi_i8042_filter);
384a7cd9 1513 err_free_keymap:
135740de 1514 sparse_keymap_free(dev->hotkey_dev);
384a7cd9 1515 err_free_dev:
135740de
SF		 1516 input_free_device(dev->hotkey_dev);
1517 dev->hotkey_dev = NULL;
384a7cd9 1518 return error;
6335e4d5
MG		 1519}
1520
b859f159 1521static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
62cce752
SF		 1522{
1523 struct backlight_properties props;
1524 int brightness;
1525 int ret;
121b7b0d 1526 bool enabled;
62cce752
SF		 1527
1528 /*
1529 * Some machines don't support the backlight methods at all, and
1530 * others support it read-only. Either of these is pretty useless,
1531 * so only register the backlight device if the backlight method
1532 * supports both reads and writes.
1533 */
1534 brightness = __get_lcd_brightness(dev);
1535 if (brightness < 0)
1536 return 0;
1537 ret = set_lcd_brightness(dev, brightness);
1538 if (ret) {
1539 pr_debug("Backlight method is read-only, disabling backlight support\n");
1540 return 0;
1541 }
1542
121b7b0d
AI		 1543 /* Determine whether or not BIOS supports transflective backlight */
1544 ret = get_tr_backlight_status(dev, &enabled);
1545 dev->tr_backlight_supported = !ret;
1546
53039f22 1547 memset(&props, 0, sizeof(props));
62cce752
SF		 1548 props.type = BACKLIGHT_PLATFORM;
1549 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
62cce752 1550
121b7b0d
AI		 1551 /* adding an extra level and having 0 change to transflective mode */
1552 if (dev->tr_backlight_supported)
1553 props.max_brightness++;
1554
62cce752
SF		 1555 dev->backlight_dev = backlight_device_register("toshiba",
1556 &dev->acpi_dev->dev,
1557 dev,
1558 &toshiba_backlight_data,
1559 &props);
1560 if (IS_ERR(dev->backlight_dev)) {
1561 ret = PTR_ERR(dev->backlight_dev);
1562 pr_err("Could not register toshiba backlight device\n");
1563 dev->backlight_dev = NULL;
1564 return ret;
1565 }
1566
1567 dev->backlight_dev->props.brightness = brightness;
1568 return 0;
1569}
1570
51fac838 1571static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
c9263557 1572{
135740de 1573 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
6335e4d5 1574
36d03f93 1575 remove_toshiba_proc_entries(dev);
ea6b31f4 1576
360f0f39
AA		 1577 if (dev->sysfs_created)
1578 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
1579 &toshiba_attr_group);
c41a40c5 1580
29cd293f
SF		 1581 if (dev->ntfy_supported) {
1582 i8042_remove_filter(toshiba_acpi_i8042_filter);
1583 cancel_work_sync(&dev->hotkey_work);
1584 }
1585
135740de
SF		 1586 if (dev->hotkey_dev) {
1587 input_unregister_device(dev->hotkey_dev);
1588 sparse_keymap_free(dev->hotkey_dev);
1589 }
c9263557 1590
135740de
SF		 1591 if (dev->bt_rfk) {
1592 rfkill_unregister(dev->bt_rfk);
1593 rfkill_destroy(dev->bt_rfk);
1594 }
c9263557 1595
135740de
SF		 1596 if (dev->backlight_dev)
1597 backlight_device_unregister(dev->backlight_dev);
c9263557 1598
36d03f93 1599 if (dev->illumination_supported)
135740de 1600 led_classdev_unregister(&dev->led_dev);
ea6b31f4 1601
360f0f39
AA		 1602 if (dev->kbd_led_registered)
1603 led_classdev_unregister(&dev->kbd_led);
ea6b31f4 1604
def6c4e2
AA		 1605 if (dev->eco_supported)
1606 led_classdev_unregister(&dev->eco_led);
6c3f6e6c 1607
29cd293f
SF		 1608 if (toshiba_acpi)
1609 toshiba_acpi = NULL;
1610
135740de 1611 kfree(dev);
c41a40c5 1612
135740de 1613 return 0;
c9263557
HM		 1614}
1615
b859f159 1616static const char *find_hci_method(acpi_handle handle)
a540d6b5 1617{
e2e19606 1618 if (acpi_has_method(handle, "GHCI"))
a540d6b5
SF		 1619 return "GHCI";
1620
e2e19606 1621 if (acpi_has_method(handle, "SPFC"))
a540d6b5
SF		 1622 return "SPFC";
1623
1624 return NULL;
1625}
1626
b859f159 1627static int toshiba_acpi_add(struct acpi_device *acpi_dev)
1da177e4 1628{
135740de 1629 struct toshiba_acpi_dev *dev;
a540d6b5 1630 const char *hci_method;
36d03f93 1631 u32 dummy;
c41a40c5 1632 bool bt_present;
c41a40c5 1633 int ret = 0;
1da177e4 1634
29cd293f
SF		 1635 if (toshiba_acpi)
1636 return -EBUSY;
1637
135740de
SF		 1638 pr_info("Toshiba Laptop ACPI Extras version %s\n",
1639 TOSHIBA_ACPI_VERSION);
1640
a540d6b5
SF		 1641 hci_method = find_hci_method(acpi_dev->handle);
1642 if (!hci_method) {
1643 pr_err("HCI interface not found\n");
6e02cc7e 1644 return -ENODEV;
a540d6b5 1645 }
6e02cc7e 1646
135740de
SF		 1647 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1648 if (!dev)
1649 return -ENOMEM;
1650 dev->acpi_dev = acpi_dev;
a540d6b5 1651 dev->method_hci = hci_method;
135740de 1652 acpi_dev->driver_data = dev;
360f0f39 1653 dev_set_drvdata(&acpi_dev->dev, dev);
fb9802fa 1654
6e02cc7e
SF		 1655 if (toshiba_acpi_setup_keyboard(dev))
1656 pr_info("Unable to activate hotkeys\n");
135740de
SF		 1657
1658 mutex_init(&dev->mutex);
1da177e4 1659
62cce752
SF		 1660 ret = toshiba_acpi_setup_backlight(dev);
1661 if (ret)
135740de 1662 goto error;
1da177e4 1663
c41a40c5 1664 /* Register rfkill switch for Bluetooth */
135740de
SF		 1665 if (hci_get_bt_present(dev, &bt_present) == HCI_SUCCESS && bt_present) {
1666 dev->bt_rfk = rfkill_alloc("Toshiba Bluetooth",
1667 &acpi_dev->dev,
1668 RFKILL_TYPE_BLUETOOTH,
1669 &toshiba_rfk_ops,
1670 dev);
1671 if (!dev->bt_rfk) {
7e33460d 1672 pr_err("unable to allocate rfkill device\n");
135740de
SF		 1673 ret = -ENOMEM;
1674 goto error;
c41a40c5 1675 }
1676
135740de 1677 ret = rfkill_register(dev->bt_rfk);
c41a40c5 1678 if (ret) {
7e33460d 1679 pr_err("unable to register rfkill device\n");
135740de
SF		 1680 rfkill_destroy(dev->bt_rfk);
1681 goto error;
38aefbc5 1682 }
c41a40c5 1683 }
1684
135740de
SF		 1685 if (toshiba_illumination_available(dev)) {
1686 dev->led_dev.name = "toshiba::illumination";
1687 dev->led_dev.max_brightness = 1;
1688 dev->led_dev.brightness_set = toshiba_illumination_set;
1689 dev->led_dev.brightness_get = toshiba_illumination_get;
1690 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
36d03f93 1691 dev->illumination_supported = 1;
6c3f6e6c 1692 }
ea6b31f4 1693
def6c4e2
AA		 1694 if (toshiba_eco_mode_available(dev)) {
1695 dev->eco_led.name = "toshiba::eco_mode";
1696 dev->eco_led.max_brightness = 1;
1697 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
1698 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
1699 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
1700 dev->eco_supported = 1;
1701 }
ea6b31f4 1702
360f0f39
AA		 1703 ret = toshiba_kbd_illum_status_get(dev, &dummy);
1704 if (!ret) {
1705 dev->kbd_time = dummy >> HCI_MISC_SHIFT;
1706 dev->kbd_mode = dummy & 0x07;
1707 }
1708 dev->kbd_illum_supported = !ret;
1709 /*
1710 * Only register the LED if KBD illumination is supported
1711 * and the keyboard backlight operation mode is set to FN-Z
1712 */
1713 if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
1714 dev->kbd_led.name = "toshiba::kbd_backlight";
1715 dev->kbd_led.max_brightness = 1;
1716 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
1717 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
1718 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
1719 dev->kbd_led_registered = 1;
1720 }
ea6b31f4 1721
9d8658ac
AA		 1722 ret = toshiba_touchpad_get(dev, &dummy);
1723 dev->touchpad_supported = !ret;
ea6b31f4 1724
5a2813e9
AA		 1725 ret = toshiba_accelerometer_supported(dev);
1726 dev->accelerometer_supported = !ret;
6c3f6e6c 1727
36d03f93
SF		 1728 /* Determine whether or not BIOS supports fan and video interfaces */
1729
1730 ret = get_video_status(dev, &dummy);
1731 dev->video_supported = !ret;
1732
1733 ret = get_fan_status(dev, &dummy);
1734 dev->fan_supported = !ret;
1735
360f0f39
AA		 1736 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
1737 &toshiba_attr_group);
1738 if (ret) {
1739 dev->sysfs_created = 0;
1740 goto error;
1741 }
1742 dev->sysfs_created = !ret;
1743
36d03f93
SF		 1744 create_toshiba_proc_entries(dev);
1745
29cd293f
SF		 1746 toshiba_acpi = dev;
1747
c41a40c5 1748 return 0;
135740de
SF		 1749
1750error:
51fac838 1751 toshiba_acpi_remove(acpi_dev);
135740de
SF		 1752 return ret;
1753}
1754
1755static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
1756{
1757 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
1758 u32 hci_result, value;
11948b93 1759 int retries = 3;
29cd293f 1760 int scancode;
135740de 1761
29cd293f 1762 if (event != 0x80)
135740de 1763 return;
11948b93 1764
29cd293f
SF		 1765 if (dev->info_supported) {
1766 scancode = toshiba_acpi_query_hotkey(dev);
1767 if (scancode < 0)
1768 pr_err("Failed to query hotkey event\n");
1769 else if (scancode != 0)
1770 toshiba_acpi_report_hotkey(dev, scancode);
1771 } else if (dev->system_event_supported) {
1772 do {
1773 hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result);
1774 switch (hci_result) {
1775 case HCI_SUCCESS:
1776 toshiba_acpi_report_hotkey(dev, (int)value);
1777 break;
1778 case HCI_NOT_SUPPORTED:
1779 /*
1780 * This is a workaround for an unresolved
1781 * issue on some machines where system events
1782 * sporadically become disabled.
1783 */
1784 hci_write1(dev, HCI_SYSTEM_EVENT, 1,
1785 &hci_result);
1786 pr_notice("Re-enabled hotkeys\n");
1787 /* fall through */
1788 default:
1789 retries--;
1790 break;
135740de 1791 }
29cd293f
SF		 1792 } while (retries && hci_result != HCI_EMPTY);
1793 }
135740de
SF		 1794}
1795
3567a4e2 1796#ifdef CONFIG_PM_SLEEP
43d2fd3b 1797static int toshiba_acpi_suspend(struct device *device)
29cd293f 1798{
43d2fd3b 1799 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
29cd293f
SF		 1800 u32 result;
1801
1802 if (dev->hotkey_dev)
1803 hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE, &result);
1804
1805 return 0;
1806}
1807
43d2fd3b 1808static int toshiba_acpi_resume(struct device *device)
29cd293f 1809{
43d2fd3b 1810 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
29cd293f
SF		 1811 u32 result;
1812
1813 if (dev->hotkey_dev)
1814 hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &result);
1815
1816 return 0;
1817}
3567a4e2 1818#endif
135740de 1819
43d2fd3b
RW		 1820static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
1821 toshiba_acpi_suspend, toshiba_acpi_resume);
1822
135740de
SF		 1823static struct acpi_driver toshiba_acpi_driver = {
1824 .name = "Toshiba ACPI driver",
1825 .owner = THIS_MODULE,
1826 .ids = toshiba_device_ids,
1827 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
1828 .ops = {
1829 .add = toshiba_acpi_add,
1830 .remove = toshiba_acpi_remove,
1831 .notify = toshiba_acpi_notify,
1832 },
43d2fd3b 1833 .drv.pm = &toshiba_acpi_pm,
135740de
SF		 1834};
1835
1836static int __init toshiba_acpi_init(void)
1837{
1838 int ret;
1839
f11f999e
SF		 1840 /*
1841 * Machines with this WMI guid aren't supported due to bugs in
1842 * their AML. This check relies on wmi initializing before
1843 * toshiba_acpi to guarantee guids have been identified.
1844 */
1845 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
1846 return -ENODEV;
1847
135740de
SF		 1848 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
1849 if (!toshiba_proc_dir) {
1850 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
1851 return -ENODEV;
1852 }
1853
1854 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
1855 if (ret) {
1856 pr_err("Failed to register ACPI driver: %d\n", ret);
1857 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
1858 }
1859
1860 return ret;
1861}
1862
1863static void __exit toshiba_acpi_exit(void)
1864{
1865 acpi_bus_unregister_driver(&toshiba_acpi_driver);
1866 if (toshiba_proc_dir)
1867 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
1da177e4
LT		 1868}
1869
1870module_init(toshiba_acpi_init);
1871module_exit(toshiba_acpi_exit);
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