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Commit | Line | Data |
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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 |
1da177e4 LT |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | * | |
23 | * | |
24 | * The devolpment page for this driver is located at | |
25 | * http://memebeam.org/toys/ToshibaAcpiDriver. | |
26 | * | |
27 | * Credits: | |
28 | * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse | |
29 | * engineering the Windows drivers | |
30 | * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5 | |
31 | * Rob Miller - TV out and hotkeys help | |
32 | * | |
33 | * | |
34 | * TODO | |
35 | * | |
36 | */ | |
37 | ||
7e33460d JP |
38 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
39 | ||
c41a40c5 | 40 | #define TOSHIBA_ACPI_VERSION "0.19" |
1da177e4 LT |
41 | #define PROC_INTERFACE_VERSION 1 |
42 | ||
43 | #include <linux/kernel.h> | |
44 | #include <linux/module.h> | |
45 | #include <linux/init.h> | |
46 | #include <linux/types.h> | |
47 | #include <linux/proc_fs.h> | |
936c8bcd | 48 | #include <linux/seq_file.h> |
c9263557 | 49 | #include <linux/backlight.h> |
c41a40c5 | 50 | #include <linux/rfkill.h> |
6335e4d5 | 51 | #include <linux/input.h> |
384a7cd9 | 52 | #include <linux/input/sparse-keymap.h> |
6c3f6e6c | 53 | #include <linux/leds.h> |
5a0e3ad6 | 54 | #include <linux/slab.h> |
29cd293f SF |
55 | #include <linux/workqueue.h> |
56 | #include <linux/i8042.h> | |
c9263557 | 57 | |
1da177e4 LT |
58 | #include <asm/uaccess.h> |
59 | ||
60 | #include <acpi/acpi_drivers.h> | |
61 | ||
62 | MODULE_AUTHOR("John Belmonte"); | |
63 | MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver"); | |
64 | MODULE_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. | |
82 | */ | |
83 | ||
84 | #define HCI_WORDS 6 | |
85 | ||
86 | /* operations */ | |
87 | #define HCI_SET 0xff00 | |
88 | #define HCI_GET 0xfe00 | |
89 | ||
90 | /* return codes */ | |
91 | #define HCI_SUCCESS 0x0000 | |
92 | #define HCI_FAILURE 0x1000 | |
93 | #define HCI_NOT_SUPPORTED 0x8000 | |
94 | #define HCI_EMPTY 0x8c00 | |
95 | ||
96 | /* registers */ | |
97 | #define HCI_FAN 0x0004 | |
121b7b0d | 98 | #define HCI_TR_BACKLIGHT 0x0005 |
1da177e4 LT |
99 | #define HCI_SYSTEM_EVENT 0x0016 |
100 | #define HCI_VIDEO_OUT 0x001c | |
101 | #define HCI_HOTKEY_EVENT 0x001e | |
102 | #define HCI_LCD_BRIGHTNESS 0x002a | |
c41a40c5 | 103 | #define HCI_WIRELESS 0x0056 |
1da177e4 LT |
104 | |
105 | /* field definitions */ | |
29cd293f SF |
106 | #define HCI_HOTKEY_DISABLE 0x0b |
107 | #define HCI_HOTKEY_ENABLE 0x09 | |
1da177e4 LT |
108 | #define HCI_LCD_BRIGHTNESS_BITS 3 |
109 | #define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS) | |
110 | #define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS) | |
111 | #define HCI_VIDEO_OUT_LCD 0x1 | |
112 | #define HCI_VIDEO_OUT_CRT 0x2 | |
113 | #define HCI_VIDEO_OUT_TV 0x4 | |
c41a40c5 | 114 | #define HCI_WIRELESS_KILL_SWITCH 0x01 |
115 | #define HCI_WIRELESS_BT_PRESENT 0x0f | |
116 | #define HCI_WIRELESS_BT_ATTACH 0x40 | |
117 | #define HCI_WIRELESS_BT_POWER 0x80 | |
1da177e4 | 118 | |
135740de SF |
119 | struct toshiba_acpi_dev { |
120 | struct acpi_device *acpi_dev; | |
121 | const char *method_hci; | |
122 | struct rfkill *bt_rfk; | |
123 | struct input_dev *hotkey_dev; | |
29cd293f | 124 | struct work_struct hotkey_work; |
135740de SF |
125 | struct backlight_device *backlight_dev; |
126 | struct led_classdev led_dev; | |
36d03f93 | 127 | |
135740de SF |
128 | int force_fan; |
129 | int last_key_event; | |
130 | int key_event_valid; | |
135740de | 131 | |
592b746c DC |
132 | unsigned int illumination_supported:1; |
133 | unsigned int video_supported:1; | |
134 | unsigned int fan_supported:1; | |
135 | unsigned int system_event_supported:1; | |
29cd293f SF |
136 | unsigned int ntfy_supported:1; |
137 | unsigned int info_supported:1; | |
121b7b0d | 138 | unsigned int tr_backlight_supported:1; |
36d03f93 | 139 | |
135740de SF |
140 | struct mutex mutex; |
141 | }; | |
142 | ||
29cd293f SF |
143 | static struct toshiba_acpi_dev *toshiba_acpi; |
144 | ||
4db42c51 | 145 | static const struct acpi_device_id toshiba_device_ids[] = { |
146 | {"TOS6200", 0}, | |
c41a40c5 | 147 | {"TOS6208", 0}, |
4db42c51 | 148 | {"TOS1900", 0}, |
149 | {"", 0}, | |
150 | }; | |
151 | MODULE_DEVICE_TABLE(acpi, toshiba_device_ids); | |
152 | ||
b859f159 | 153 | static const struct key_entry toshiba_acpi_keymap[] = { |
384a7cd9 DT |
154 | { KE_KEY, 0x101, { KEY_MUTE } }, |
155 | { KE_KEY, 0x102, { KEY_ZOOMOUT } }, | |
156 | { KE_KEY, 0x103, { KEY_ZOOMIN } }, | |
af502837 AA |
157 | { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } }, |
158 | { KE_KEY, 0x139, { KEY_ZOOMRESET } }, | |
384a7cd9 DT |
159 | { KE_KEY, 0x13b, { KEY_COFFEE } }, |
160 | { KE_KEY, 0x13c, { KEY_BATTERY } }, | |
161 | { KE_KEY, 0x13d, { KEY_SLEEP } }, | |
162 | { KE_KEY, 0x13e, { KEY_SUSPEND } }, | |
163 | { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } }, | |
164 | { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } }, | |
165 | { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } }, | |
166 | { KE_KEY, 0x142, { KEY_WLAN } }, | |
af502837 | 167 | { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } }, |
a49010f5 | 168 | { KE_KEY, 0x17f, { KEY_FN } }, |
384a7cd9 DT |
169 | { KE_KEY, 0xb05, { KEY_PROG2 } }, |
170 | { KE_KEY, 0xb06, { KEY_WWW } }, | |
171 | { KE_KEY, 0xb07, { KEY_MAIL } }, | |
172 | { KE_KEY, 0xb30, { KEY_STOP } }, | |
173 | { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } }, | |
174 | { KE_KEY, 0xb32, { KEY_NEXTSONG } }, | |
175 | { KE_KEY, 0xb33, { KEY_PLAYPAUSE } }, | |
176 | { KE_KEY, 0xb5a, { KEY_MEDIA } }, | |
af502837 | 177 | { KE_IGNORE, 0x1430, { KEY_RESERVED } }, |
384a7cd9 | 178 | { KE_END, 0 }, |
6335e4d5 MG |
179 | }; |
180 | ||
1da177e4 LT |
181 | /* utility |
182 | */ | |
183 | ||
4be44fcd | 184 | static __inline__ void _set_bit(u32 * word, u32 mask, int value) |
1da177e4 LT |
185 | { |
186 | *word = (*word & ~mask) | (mask * value); | |
187 | } | |
188 | ||
189 | /* acpi interface wrappers | |
190 | */ | |
191 | ||
4be44fcd | 192 | static int write_acpi_int(const char *methodName, int val) |
1da177e4 | 193 | { |
1da177e4 LT |
194 | acpi_status status; |
195 | ||
619400da | 196 | status = acpi_execute_simple_method(NULL, (char *)methodName, val); |
32bcd5cb | 197 | return (status == AE_OK) ? 0 : -EIO; |
1da177e4 LT |
198 | } |
199 | ||
1da177e4 LT |
200 | /* Perform a raw HCI call. Here we don't care about input or output buffer |
201 | * format. | |
202 | */ | |
135740de SF |
203 | static acpi_status hci_raw(struct toshiba_acpi_dev *dev, |
204 | const u32 in[HCI_WORDS], u32 out[HCI_WORDS]) | |
1da177e4 LT |
205 | { |
206 | struct acpi_object_list params; | |
207 | union acpi_object in_objs[HCI_WORDS]; | |
208 | struct acpi_buffer results; | |
4be44fcd | 209 | union acpi_object out_objs[HCI_WORDS + 1]; |
1da177e4 LT |
210 | acpi_status status; |
211 | int i; | |
212 | ||
213 | params.count = HCI_WORDS; | |
214 | params.pointer = in_objs; | |
215 | for (i = 0; i < HCI_WORDS; ++i) { | |
216 | in_objs[i].type = ACPI_TYPE_INTEGER; | |
217 | in_objs[i].integer.value = in[i]; | |
218 | } | |
219 | ||
220 | results.length = sizeof(out_objs); | |
221 | results.pointer = out_objs; | |
222 | ||
6e02cc7e SF |
223 | status = acpi_evaluate_object(dev->acpi_dev->handle, |
224 | (char *)dev->method_hci, ¶ms, | |
4be44fcd | 225 | &results); |
1da177e4 LT |
226 | if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) { |
227 | for (i = 0; i < out_objs->package.count; ++i) { | |
228 | out[i] = out_objs->package.elements[i].integer.value; | |
229 | } | |
230 | } | |
231 | ||
232 | return status; | |
233 | } | |
234 | ||
c41a40c5 | 235 | /* common hci tasks (get or set one or two value) |
1da177e4 LT |
236 | * |
237 | * In addition to the ACPI status, the HCI system returns a result which | |
238 | * may be useful (such as "not supported"). | |
239 | */ | |
240 | ||
135740de SF |
241 | static acpi_status hci_write1(struct toshiba_acpi_dev *dev, u32 reg, |
242 | u32 in1, u32 *result) | |
1da177e4 LT |
243 | { |
244 | u32 in[HCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 }; | |
245 | u32 out[HCI_WORDS]; | |
135740de | 246 | acpi_status status = hci_raw(dev, in, out); |
1da177e4 LT |
247 | *result = (status == AE_OK) ? out[0] : HCI_FAILURE; |
248 | return status; | |
249 | } | |
250 | ||
135740de SF |
251 | static acpi_status hci_read1(struct toshiba_acpi_dev *dev, u32 reg, |
252 | u32 *out1, u32 *result) | |
1da177e4 LT |
253 | { |
254 | u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 }; | |
255 | u32 out[HCI_WORDS]; | |
135740de | 256 | acpi_status status = hci_raw(dev, in, out); |
1da177e4 LT |
257 | *out1 = out[2]; |
258 | *result = (status == AE_OK) ? out[0] : HCI_FAILURE; | |
259 | return status; | |
260 | } | |
261 | ||
135740de SF |
262 | static acpi_status hci_write2(struct toshiba_acpi_dev *dev, u32 reg, |
263 | u32 in1, u32 in2, u32 *result) | |
c41a40c5 | 264 | { |
265 | u32 in[HCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 }; | |
266 | u32 out[HCI_WORDS]; | |
135740de | 267 | acpi_status status = hci_raw(dev, in, out); |
c41a40c5 | 268 | *result = (status == AE_OK) ? out[0] : HCI_FAILURE; |
269 | return status; | |
270 | } | |
271 | ||
135740de SF |
272 | static acpi_status hci_read2(struct toshiba_acpi_dev *dev, u32 reg, |
273 | u32 *out1, u32 *out2, u32 *result) | |
c41a40c5 | 274 | { |
275 | u32 in[HCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 }; | |
276 | u32 out[HCI_WORDS]; | |
135740de | 277 | acpi_status status = hci_raw(dev, in, out); |
c41a40c5 | 278 | *out1 = out[2]; |
279 | *out2 = out[3]; | |
280 | *result = (status == AE_OK) ? out[0] : HCI_FAILURE; | |
281 | return status; | |
282 | } | |
283 | ||
6c3f6e6c | 284 | /* Illumination support */ |
135740de | 285 | static int toshiba_illumination_available(struct toshiba_acpi_dev *dev) |
6c3f6e6c PD |
286 | { |
287 | u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 }; | |
288 | u32 out[HCI_WORDS]; | |
289 | acpi_status status; | |
290 | ||
291 | in[0] = 0xf100; | |
135740de | 292 | status = hci_raw(dev, in, out); |
6c3f6e6c | 293 | if (ACPI_FAILURE(status)) { |
7e33460d | 294 | pr_info("Illumination device not available\n"); |
6c3f6e6c PD |
295 | return 0; |
296 | } | |
297 | in[0] = 0xf400; | |
135740de | 298 | status = hci_raw(dev, in, out); |
6c3f6e6c PD |
299 | return 1; |
300 | } | |
301 | ||
302 | static void toshiba_illumination_set(struct led_classdev *cdev, | |
303 | enum led_brightness brightness) | |
304 | { | |
135740de SF |
305 | struct toshiba_acpi_dev *dev = container_of(cdev, |
306 | struct toshiba_acpi_dev, led_dev); | |
6c3f6e6c PD |
307 | u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 }; |
308 | u32 out[HCI_WORDS]; | |
309 | acpi_status status; | |
310 | ||
311 | /* First request : initialize communication. */ | |
312 | in[0] = 0xf100; | |
135740de | 313 | status = hci_raw(dev, in, out); |
6c3f6e6c | 314 | if (ACPI_FAILURE(status)) { |
7e33460d | 315 | pr_info("Illumination device not available\n"); |
6c3f6e6c PD |
316 | return; |
317 | } | |
318 | ||
319 | if (brightness) { | |
320 | /* Switch the illumination on */ | |
321 | in[0] = 0xf400; | |
322 | in[1] = 0x14e; | |
323 | in[2] = 1; | |
135740de | 324 | status = hci_raw(dev, in, out); |
6c3f6e6c | 325 | if (ACPI_FAILURE(status)) { |
7e33460d | 326 | pr_info("ACPI call for illumination failed\n"); |
6c3f6e6c PD |
327 | return; |
328 | } | |
329 | } else { | |
330 | /* Switch the illumination off */ | |
331 | in[0] = 0xf400; | |
332 | in[1] = 0x14e; | |
333 | in[2] = 0; | |
135740de | 334 | status = hci_raw(dev, in, out); |
6c3f6e6c | 335 | if (ACPI_FAILURE(status)) { |
7e33460d | 336 | pr_info("ACPI call for illumination failed.\n"); |
6c3f6e6c PD |
337 | return; |
338 | } | |
339 | } | |
340 | ||
341 | /* Last request : close communication. */ | |
342 | in[0] = 0xf200; | |
343 | in[1] = 0; | |
344 | in[2] = 0; | |
135740de | 345 | hci_raw(dev, in, out); |
6c3f6e6c PD |
346 | } |
347 | ||
348 | static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev) | |
349 | { | |
135740de SF |
350 | struct toshiba_acpi_dev *dev = container_of(cdev, |
351 | struct toshiba_acpi_dev, led_dev); | |
6c3f6e6c PD |
352 | u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 }; |
353 | u32 out[HCI_WORDS]; | |
354 | acpi_status status; | |
355 | enum led_brightness result; | |
356 | ||
357 | /*Â First request : initialize communication. */ | |
358 | in[0] = 0xf100; | |
135740de | 359 | status = hci_raw(dev, in, out); |
6c3f6e6c | 360 | if (ACPI_FAILURE(status)) { |
7e33460d | 361 | pr_info("Illumination device not available\n"); |
6c3f6e6c PD |
362 | return LED_OFF; |
363 | } | |
364 | ||
365 | /* Check the illumination */ | |
366 | in[0] = 0xf300; | |
367 | in[1] = 0x14e; | |
135740de | 368 | status = hci_raw(dev, in, out); |
6c3f6e6c | 369 | if (ACPI_FAILURE(status)) { |
7e33460d | 370 | pr_info("ACPI call for illumination failed.\n"); |
6c3f6e6c PD |
371 | return LED_OFF; |
372 | } | |
373 | ||
374 | result = out[2] ? LED_FULL : LED_OFF; | |
375 | ||
376 | /* Last request : close communication. */ | |
377 | in[0] = 0xf200; | |
378 | in[1] = 0; | |
379 | in[2] = 0; | |
135740de | 380 | hci_raw(dev, in, out); |
6c3f6e6c PD |
381 | |
382 | return result; | |
383 | } | |
384 | ||
c41a40c5 | 385 | /* Bluetooth rfkill handlers */ |
386 | ||
135740de | 387 | static u32 hci_get_bt_present(struct toshiba_acpi_dev *dev, bool *present) |
c41a40c5 | 388 | { |
389 | u32 hci_result; | |
390 | u32 value, value2; | |
391 | ||
392 | value = 0; | |
393 | value2 = 0; | |
135740de | 394 | hci_read2(dev, HCI_WIRELESS, &value, &value2, &hci_result); |
c41a40c5 | 395 | if (hci_result == HCI_SUCCESS) |
396 | *present = (value & HCI_WIRELESS_BT_PRESENT) ? true : false; | |
397 | ||
398 | return hci_result; | |
399 | } | |
400 | ||
135740de | 401 | static u32 hci_get_radio_state(struct toshiba_acpi_dev *dev, bool *radio_state) |
c41a40c5 | 402 | { |
403 | u32 hci_result; | |
404 | u32 value, value2; | |
405 | ||
406 | value = 0; | |
407 | value2 = 0x0001; | |
135740de | 408 | hci_read2(dev, HCI_WIRELESS, &value, &value2, &hci_result); |
c41a40c5 | 409 | |
410 | *radio_state = value & HCI_WIRELESS_KILL_SWITCH; | |
411 | return hci_result; | |
412 | } | |
413 | ||
19d337df | 414 | static int bt_rfkill_set_block(void *data, bool blocked) |
c41a40c5 | 415 | { |
19d337df | 416 | struct toshiba_acpi_dev *dev = data; |
c41a40c5 | 417 | u32 result1, result2; |
418 | u32 value; | |
19d337df | 419 | int err; |
c41a40c5 | 420 | bool radio_state; |
c41a40c5 | 421 | |
19d337df | 422 | value = (blocked == false); |
c41a40c5 | 423 | |
19d337df | 424 | mutex_lock(&dev->mutex); |
135740de | 425 | if (hci_get_radio_state(dev, &radio_state) != HCI_SUCCESS) { |
32bcd5cb | 426 | err = -EIO; |
19d337df JB |
427 | goto out; |
428 | } | |
c41a40c5 | 429 | |
19d337df JB |
430 | if (!radio_state) { |
431 | err = 0; | |
432 | goto out; | |
c41a40c5 | 433 | } |
434 | ||
135740de SF |
435 | hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_POWER, &result1); |
436 | hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_ATTACH, &result2); | |
c41a40c5 | 437 | |
438 | if (result1 != HCI_SUCCESS || result2 != HCI_SUCCESS) | |
32bcd5cb | 439 | err = -EIO; |
19d337df JB |
440 | else |
441 | err = 0; | |
442 | out: | |
443 | mutex_unlock(&dev->mutex); | |
444 | return err; | |
c41a40c5 | 445 | } |
446 | ||
19d337df | 447 | static void bt_rfkill_poll(struct rfkill *rfkill, void *data) |
c41a40c5 | 448 | { |
c41a40c5 | 449 | bool new_rfk_state; |
450 | bool value; | |
451 | u32 hci_result; | |
19d337df JB |
452 | struct toshiba_acpi_dev *dev = data; |
453 | ||
454 | mutex_lock(&dev->mutex); | |
c41a40c5 | 455 | |
135740de | 456 | hci_result = hci_get_radio_state(dev, &value); |
19d337df JB |
457 | if (hci_result != HCI_SUCCESS) { |
458 | /* Can't do anything useful */ | |
459 | mutex_unlock(&dev->mutex); | |
82e7784f | 460 | return; |
19d337df | 461 | } |
c41a40c5 | 462 | |
463 | new_rfk_state = value; | |
464 | ||
c41a40c5 | 465 | mutex_unlock(&dev->mutex); |
466 | ||
19d337df JB |
467 | if (rfkill_set_hw_state(rfkill, !new_rfk_state)) |
468 | bt_rfkill_set_block(data, true); | |
c41a40c5 | 469 | } |
470 | ||
19d337df JB |
471 | static const struct rfkill_ops toshiba_rfk_ops = { |
472 | .set_block = bt_rfkill_set_block, | |
473 | .poll = bt_rfkill_poll, | |
474 | }; | |
475 | ||
121b7b0d AI |
476 | static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, bool *enabled) |
477 | { | |
478 | u32 hci_result; | |
479 | u32 status; | |
480 | ||
481 | hci_read1(dev, HCI_TR_BACKLIGHT, &status, &hci_result); | |
482 | *enabled = !status; | |
483 | return hci_result == HCI_SUCCESS ? 0 : -EIO; | |
484 | } | |
485 | ||
486 | static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, bool enable) | |
487 | { | |
488 | u32 hci_result; | |
489 | u32 value = !enable; | |
490 | ||
491 | hci_write1(dev, HCI_TR_BACKLIGHT, value, &hci_result); | |
492 | return hci_result == HCI_SUCCESS ? 0 : -EIO; | |
493 | } | |
494 | ||
4be44fcd | 495 | static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ; |
1da177e4 | 496 | |
62cce752 | 497 | static int __get_lcd_brightness(struct toshiba_acpi_dev *dev) |
1da177e4 LT |
498 | { |
499 | u32 hci_result; | |
500 | u32 value; | |
121b7b0d AI |
501 | int brightness = 0; |
502 | ||
503 | if (dev->tr_backlight_supported) { | |
504 | bool enabled; | |
505 | int ret = get_tr_backlight_status(dev, &enabled); | |
506 | if (ret) | |
507 | return ret; | |
508 | if (enabled) | |
509 | return 0; | |
510 | brightness++; | |
511 | } | |
1da177e4 | 512 | |
135740de | 513 | hci_read1(dev, HCI_LCD_BRIGHTNESS, &value, &hci_result); |
32bcd5cb | 514 | if (hci_result == HCI_SUCCESS) |
121b7b0d | 515 | return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT); |
32bcd5cb SF |
516 | |
517 | return -EIO; | |
c9263557 HM |
518 | } |
519 | ||
62cce752 SF |
520 | static int get_lcd_brightness(struct backlight_device *bd) |
521 | { | |
522 | struct toshiba_acpi_dev *dev = bl_get_data(bd); | |
523 | return __get_lcd_brightness(dev); | |
524 | } | |
525 | ||
936c8bcd | 526 | static int lcd_proc_show(struct seq_file *m, void *v) |
c9263557 | 527 | { |
135740de SF |
528 | struct toshiba_acpi_dev *dev = m->private; |
529 | int value; | |
121b7b0d | 530 | int levels; |
135740de SF |
531 | |
532 | if (!dev->backlight_dev) | |
533 | return -ENODEV; | |
c9263557 | 534 | |
121b7b0d | 535 | levels = dev->backlight_dev->props.max_brightness + 1; |
62cce752 | 536 | value = get_lcd_brightness(dev->backlight_dev); |
c9263557 | 537 | if (value >= 0) { |
936c8bcd | 538 | seq_printf(m, "brightness: %d\n", value); |
121b7b0d | 539 | seq_printf(m, "brightness_levels: %d\n", levels); |
32bcd5cb | 540 | return 0; |
1da177e4 LT |
541 | } |
542 | ||
32bcd5cb SF |
543 | pr_err("Error reading LCD brightness\n"); |
544 | return -EIO; | |
936c8bcd AD |
545 | } |
546 | ||
547 | static int lcd_proc_open(struct inode *inode, struct file *file) | |
548 | { | |
d9dda78b | 549 | return single_open(file, lcd_proc_show, PDE_DATA(inode)); |
1da177e4 LT |
550 | } |
551 | ||
62cce752 | 552 | static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value) |
c9263557 HM |
553 | { |
554 | u32 hci_result; | |
555 | ||
121b7b0d AI |
556 | if (dev->tr_backlight_supported) { |
557 | bool enable = !value; | |
558 | int ret = set_tr_backlight_status(dev, enable); | |
559 | if (ret) | |
560 | return ret; | |
561 | if (value) | |
562 | value--; | |
563 | } | |
564 | ||
c9263557 | 565 | value = value << HCI_LCD_BRIGHTNESS_SHIFT; |
135740de | 566 | hci_write1(dev, HCI_LCD_BRIGHTNESS, value, &hci_result); |
32bcd5cb | 567 | return hci_result == HCI_SUCCESS ? 0 : -EIO; |
c9263557 HM |
568 | } |
569 | ||
570 | static int set_lcd_status(struct backlight_device *bd) | |
571 | { | |
135740de | 572 | struct toshiba_acpi_dev *dev = bl_get_data(bd); |
62cce752 | 573 | return set_lcd_brightness(dev, bd->props.brightness); |
c9263557 HM |
574 | } |
575 | ||
936c8bcd AD |
576 | static ssize_t lcd_proc_write(struct file *file, const char __user *buf, |
577 | size_t count, loff_t *pos) | |
1da177e4 | 578 | { |
d9dda78b | 579 | struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); |
936c8bcd AD |
580 | char cmd[42]; |
581 | size_t len; | |
1da177e4 | 582 | int value; |
c8af57eb | 583 | int ret; |
121b7b0d | 584 | int levels = dev->backlight_dev->props.max_brightness + 1; |
1da177e4 | 585 | |
936c8bcd AD |
586 | len = min(count, sizeof(cmd) - 1); |
587 | if (copy_from_user(cmd, buf, len)) | |
588 | return -EFAULT; | |
589 | cmd[len] = '\0'; | |
590 | ||
591 | if (sscanf(cmd, " brightness : %i", &value) == 1 && | |
121b7b0d | 592 | value >= 0 && value < levels) { |
62cce752 | 593 | ret = set_lcd_brightness(dev, value); |
c8af57eb MO |
594 | if (ret == 0) |
595 | ret = count; | |
596 | } else { | |
c9263557 | 597 | ret = -EINVAL; |
c8af57eb | 598 | } |
c9263557 | 599 | return ret; |
1da177e4 LT |
600 | } |
601 | ||
936c8bcd AD |
602 | static const struct file_operations lcd_proc_fops = { |
603 | .owner = THIS_MODULE, | |
604 | .open = lcd_proc_open, | |
605 | .read = seq_read, | |
606 | .llseek = seq_lseek, | |
607 | .release = single_release, | |
608 | .write = lcd_proc_write, | |
609 | }; | |
610 | ||
36d03f93 SF |
611 | static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status) |
612 | { | |
613 | u32 hci_result; | |
614 | ||
615 | hci_read1(dev, HCI_VIDEO_OUT, status, &hci_result); | |
616 | return hci_result == HCI_SUCCESS ? 0 : -EIO; | |
617 | } | |
618 | ||
936c8bcd | 619 | static int video_proc_show(struct seq_file *m, void *v) |
1da177e4 | 620 | { |
135740de | 621 | struct toshiba_acpi_dev *dev = m->private; |
1da177e4 | 622 | u32 value; |
36d03f93 | 623 | int ret; |
1da177e4 | 624 | |
36d03f93 SF |
625 | ret = get_video_status(dev, &value); |
626 | if (!ret) { | |
1da177e4 LT |
627 | int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0; |
628 | int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0; | |
4be44fcd | 629 | int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0; |
936c8bcd AD |
630 | seq_printf(m, "lcd_out: %d\n", is_lcd); |
631 | seq_printf(m, "crt_out: %d\n", is_crt); | |
632 | seq_printf(m, "tv_out: %d\n", is_tv); | |
1da177e4 LT |
633 | } |
634 | ||
36d03f93 | 635 | return ret; |
1da177e4 LT |
636 | } |
637 | ||
936c8bcd | 638 | static int video_proc_open(struct inode *inode, struct file *file) |
1da177e4 | 639 | { |
d9dda78b | 640 | return single_open(file, video_proc_show, PDE_DATA(inode)); |
936c8bcd AD |
641 | } |
642 | ||
643 | static ssize_t video_proc_write(struct file *file, const char __user *buf, | |
644 | size_t count, loff_t *pos) | |
645 | { | |
d9dda78b | 646 | struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); |
936c8bcd | 647 | char *cmd, *buffer; |
36d03f93 | 648 | int ret; |
1da177e4 LT |
649 | int value; |
650 | int remain = count; | |
651 | int lcd_out = -1; | |
652 | int crt_out = -1; | |
653 | int tv_out = -1; | |
b4482a4b | 654 | u32 video_out; |
1da177e4 | 655 | |
936c8bcd AD |
656 | cmd = kmalloc(count + 1, GFP_KERNEL); |
657 | if (!cmd) | |
658 | return -ENOMEM; | |
659 | if (copy_from_user(cmd, buf, count)) { | |
660 | kfree(cmd); | |
661 | return -EFAULT; | |
662 | } | |
663 | cmd[count] = '\0'; | |
664 | ||
665 | buffer = cmd; | |
666 | ||
1da177e4 LT |
667 | /* scan expression. Multiple expressions may be delimited with ; |
668 | * | |
669 | * NOTE: to keep scanning simple, invalid fields are ignored | |
670 | */ | |
671 | while (remain) { | |
672 | if (sscanf(buffer, " lcd_out : %i", &value) == 1) | |
673 | lcd_out = value & 1; | |
674 | else if (sscanf(buffer, " crt_out : %i", &value) == 1) | |
675 | crt_out = value & 1; | |
676 | else if (sscanf(buffer, " tv_out : %i", &value) == 1) | |
677 | tv_out = value & 1; | |
678 | /* advance to one character past the next ; */ | |
679 | do { | |
680 | ++buffer; | |
681 | --remain; | |
682 | } | |
4be44fcd | 683 | while (remain && *(buffer - 1) != ';'); |
1da177e4 LT |
684 | } |
685 | ||
936c8bcd AD |
686 | kfree(cmd); |
687 | ||
36d03f93 SF |
688 | ret = get_video_status(dev, &video_out); |
689 | if (!ret) { | |
9e113e00 | 690 | unsigned int new_video_out = video_out; |
1da177e4 LT |
691 | if (lcd_out != -1) |
692 | _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out); | |
693 | if (crt_out != -1) | |
694 | _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out); | |
695 | if (tv_out != -1) | |
696 | _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out); | |
697 | /* To avoid unnecessary video disruption, only write the new | |
698 | * video setting if something changed. */ | |
699 | if (new_video_out != video_out) | |
32bcd5cb | 700 | ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out); |
1da177e4 LT |
701 | } |
702 | ||
32bcd5cb | 703 | return ret ? ret : count; |
1da177e4 LT |
704 | } |
705 | ||
936c8bcd AD |
706 | static const struct file_operations video_proc_fops = { |
707 | .owner = THIS_MODULE, | |
708 | .open = video_proc_open, | |
709 | .read = seq_read, | |
710 | .llseek = seq_lseek, | |
711 | .release = single_release, | |
712 | .write = video_proc_write, | |
713 | }; | |
714 | ||
36d03f93 SF |
715 | static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status) |
716 | { | |
717 | u32 hci_result; | |
718 | ||
719 | hci_read1(dev, HCI_FAN, status, &hci_result); | |
720 | return hci_result == HCI_SUCCESS ? 0 : -EIO; | |
721 | } | |
722 | ||
936c8bcd | 723 | static int fan_proc_show(struct seq_file *m, void *v) |
1da177e4 | 724 | { |
135740de | 725 | struct toshiba_acpi_dev *dev = m->private; |
36d03f93 | 726 | int ret; |
1da177e4 LT |
727 | u32 value; |
728 | ||
36d03f93 SF |
729 | ret = get_fan_status(dev, &value); |
730 | if (!ret) { | |
936c8bcd | 731 | seq_printf(m, "running: %d\n", (value > 0)); |
135740de | 732 | seq_printf(m, "force_on: %d\n", dev->force_fan); |
1da177e4 LT |
733 | } |
734 | ||
36d03f93 | 735 | return ret; |
936c8bcd AD |
736 | } |
737 | ||
738 | static int fan_proc_open(struct inode *inode, struct file *file) | |
739 | { | |
d9dda78b | 740 | return single_open(file, fan_proc_show, PDE_DATA(inode)); |
1da177e4 LT |
741 | } |
742 | ||
936c8bcd AD |
743 | static ssize_t fan_proc_write(struct file *file, const char __user *buf, |
744 | size_t count, loff_t *pos) | |
1da177e4 | 745 | { |
d9dda78b | 746 | struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); |
936c8bcd AD |
747 | char cmd[42]; |
748 | size_t len; | |
1da177e4 LT |
749 | int value; |
750 | u32 hci_result; | |
751 | ||
936c8bcd AD |
752 | len = min(count, sizeof(cmd) - 1); |
753 | if (copy_from_user(cmd, buf, len)) | |
754 | return -EFAULT; | |
755 | cmd[len] = '\0'; | |
756 | ||
757 | if (sscanf(cmd, " force_on : %i", &value) == 1 && | |
4be44fcd | 758 | value >= 0 && value <= 1) { |
135740de | 759 | hci_write1(dev, HCI_FAN, value, &hci_result); |
1da177e4 | 760 | if (hci_result != HCI_SUCCESS) |
32bcd5cb | 761 | return -EIO; |
1da177e4 | 762 | else |
135740de | 763 | dev->force_fan = value; |
1da177e4 LT |
764 | } else { |
765 | return -EINVAL; | |
766 | } | |
767 | ||
768 | return count; | |
769 | } | |
770 | ||
936c8bcd AD |
771 | static const struct file_operations fan_proc_fops = { |
772 | .owner = THIS_MODULE, | |
773 | .open = fan_proc_open, | |
774 | .read = seq_read, | |
775 | .llseek = seq_lseek, | |
776 | .release = single_release, | |
777 | .write = fan_proc_write, | |
778 | }; | |
779 | ||
780 | static int keys_proc_show(struct seq_file *m, void *v) | |
1da177e4 | 781 | { |
135740de | 782 | struct toshiba_acpi_dev *dev = m->private; |
1da177e4 LT |
783 | u32 hci_result; |
784 | u32 value; | |
785 | ||
11948b93 | 786 | if (!dev->key_event_valid && dev->system_event_supported) { |
135740de | 787 | hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result); |
1da177e4 | 788 | if (hci_result == HCI_SUCCESS) { |
135740de SF |
789 | dev->key_event_valid = 1; |
790 | dev->last_key_event = value; | |
1da177e4 LT |
791 | } else if (hci_result == HCI_EMPTY) { |
792 | /* better luck next time */ | |
793 | } else if (hci_result == HCI_NOT_SUPPORTED) { | |
794 | /* This is a workaround for an unresolved issue on | |
795 | * some machines where system events sporadically | |
796 | * become disabled. */ | |
135740de | 797 | hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result); |
7e33460d | 798 | pr_notice("Re-enabled hotkeys\n"); |
1da177e4 | 799 | } else { |
7e33460d | 800 | pr_err("Error reading hotkey status\n"); |
32bcd5cb | 801 | return -EIO; |
1da177e4 LT |
802 | } |
803 | } | |
804 | ||
135740de SF |
805 | seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid); |
806 | seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event); | |
936c8bcd AD |
807 | return 0; |
808 | } | |
1da177e4 | 809 | |
936c8bcd AD |
810 | static int keys_proc_open(struct inode *inode, struct file *file) |
811 | { | |
d9dda78b | 812 | return single_open(file, keys_proc_show, PDE_DATA(inode)); |
1da177e4 LT |
813 | } |
814 | ||
936c8bcd AD |
815 | static ssize_t keys_proc_write(struct file *file, const char __user *buf, |
816 | size_t count, loff_t *pos) | |
1da177e4 | 817 | { |
d9dda78b | 818 | struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); |
936c8bcd AD |
819 | char cmd[42]; |
820 | size_t len; | |
1da177e4 LT |
821 | int value; |
822 | ||
936c8bcd AD |
823 | len = min(count, sizeof(cmd) - 1); |
824 | if (copy_from_user(cmd, buf, len)) | |
825 | return -EFAULT; | |
826 | cmd[len] = '\0'; | |
827 | ||
828 | if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0) { | |
135740de | 829 | dev->key_event_valid = 0; |
1da177e4 LT |
830 | } else { |
831 | return -EINVAL; | |
832 | } | |
833 | ||
834 | return count; | |
835 | } | |
836 | ||
936c8bcd AD |
837 | static const struct file_operations keys_proc_fops = { |
838 | .owner = THIS_MODULE, | |
839 | .open = keys_proc_open, | |
840 | .read = seq_read, | |
841 | .llseek = seq_lseek, | |
842 | .release = single_release, | |
843 | .write = keys_proc_write, | |
844 | }; | |
845 | ||
846 | static int version_proc_show(struct seq_file *m, void *v) | |
1da177e4 | 847 | { |
936c8bcd AD |
848 | seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION); |
849 | seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION); | |
850 | return 0; | |
1da177e4 LT |
851 | } |
852 | ||
936c8bcd AD |
853 | static int version_proc_open(struct inode *inode, struct file *file) |
854 | { | |
d9dda78b | 855 | return single_open(file, version_proc_show, PDE_DATA(inode)); |
936c8bcd AD |
856 | } |
857 | ||
858 | static const struct file_operations version_proc_fops = { | |
859 | .owner = THIS_MODULE, | |
860 | .open = version_proc_open, | |
861 | .read = seq_read, | |
862 | .llseek = seq_lseek, | |
863 | .release = single_release, | |
864 | }; | |
865 | ||
1da177e4 LT |
866 | /* proc and module init |
867 | */ | |
868 | ||
869 | #define PROC_TOSHIBA "toshiba" | |
870 | ||
b859f159 | 871 | static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev) |
1da177e4 | 872 | { |
36d03f93 SF |
873 | if (dev->backlight_dev) |
874 | proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir, | |
875 | &lcd_proc_fops, dev); | |
876 | if (dev->video_supported) | |
877 | proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir, | |
878 | &video_proc_fops, dev); | |
879 | if (dev->fan_supported) | |
880 | proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir, | |
881 | &fan_proc_fops, dev); | |
882 | if (dev->hotkey_dev) | |
883 | proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir, | |
884 | &keys_proc_fops, dev); | |
135740de SF |
885 | proc_create_data("version", S_IRUGO, toshiba_proc_dir, |
886 | &version_proc_fops, dev); | |
1da177e4 LT |
887 | } |
888 | ||
36d03f93 | 889 | static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev) |
1da177e4 | 890 | { |
36d03f93 SF |
891 | if (dev->backlight_dev) |
892 | remove_proc_entry("lcd", toshiba_proc_dir); | |
893 | if (dev->video_supported) | |
894 | remove_proc_entry("video", toshiba_proc_dir); | |
895 | if (dev->fan_supported) | |
896 | remove_proc_entry("fan", toshiba_proc_dir); | |
897 | if (dev->hotkey_dev) | |
898 | remove_proc_entry("keys", toshiba_proc_dir); | |
936c8bcd | 899 | remove_proc_entry("version", toshiba_proc_dir); |
1da177e4 LT |
900 | } |
901 | ||
acc2472e | 902 | static const struct backlight_ops toshiba_backlight_data = { |
121b7b0d | 903 | .options = BL_CORE_SUSPENDRESUME, |
62cce752 SF |
904 | .get_brightness = get_lcd_brightness, |
905 | .update_status = set_lcd_status, | |
c9263557 HM |
906 | }; |
907 | ||
29cd293f SF |
908 | static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str, |
909 | struct serio *port) | |
910 | { | |
911 | if (str & 0x20) | |
912 | return false; | |
913 | ||
914 | if (unlikely(data == 0xe0)) | |
915 | return false; | |
916 | ||
917 | if ((data & 0x7f) == TOS1900_FN_SCAN) { | |
918 | schedule_work(&toshiba_acpi->hotkey_work); | |
919 | return true; | |
920 | } | |
921 | ||
922 | return false; | |
923 | } | |
924 | ||
925 | static void toshiba_acpi_hotkey_work(struct work_struct *work) | |
926 | { | |
927 | acpi_handle ec_handle = ec_get_handle(); | |
928 | acpi_status status; | |
929 | ||
930 | if (!ec_handle) | |
931 | return; | |
932 | ||
933 | status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL); | |
934 | if (ACPI_FAILURE(status)) | |
935 | pr_err("ACPI NTFY method execution failed\n"); | |
936 | } | |
937 | ||
938 | /* | |
939 | * Returns hotkey scancode, or < 0 on failure. | |
940 | */ | |
941 | static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev) | |
942 | { | |
943 | struct acpi_buffer buf; | |
944 | union acpi_object out_obj; | |
945 | acpi_status status; | |
946 | ||
947 | buf.pointer = &out_obj; | |
948 | buf.length = sizeof(out_obj); | |
949 | ||
950 | status = acpi_evaluate_object(dev->acpi_dev->handle, "INFO", | |
951 | NULL, &buf); | |
952 | if (ACPI_FAILURE(status) || out_obj.type != ACPI_TYPE_INTEGER) { | |
953 | pr_err("ACPI INFO method execution failed\n"); | |
954 | return -EIO; | |
955 | } | |
956 | ||
957 | return out_obj.integer.value; | |
958 | } | |
959 | ||
960 | static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev, | |
961 | int scancode) | |
962 | { | |
963 | if (scancode == 0x100) | |
964 | return; | |
965 | ||
966 | /* act on key press; ignore key release */ | |
967 | if (scancode & 0x80) | |
968 | return; | |
969 | ||
970 | if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true)) | |
971 | pr_info("Unknown key %x\n", scancode); | |
972 | } | |
973 | ||
b859f159 | 974 | static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev) |
6335e4d5 MG |
975 | { |
976 | acpi_status status; | |
e2e19606 | 977 | acpi_handle ec_handle; |
384a7cd9 | 978 | int error; |
29cd293f | 979 | u32 hci_result; |
6335e4d5 | 980 | |
135740de SF |
981 | dev->hotkey_dev = input_allocate_device(); |
982 | if (!dev->hotkey_dev) { | |
7e33460d | 983 | pr_info("Unable to register input device\n"); |
6335e4d5 MG |
984 | return -ENOMEM; |
985 | } | |
986 | ||
135740de | 987 | dev->hotkey_dev->name = "Toshiba input device"; |
6e02cc7e | 988 | dev->hotkey_dev->phys = "toshiba_acpi/input0"; |
135740de | 989 | dev->hotkey_dev->id.bustype = BUS_HOST; |
6335e4d5 | 990 | |
135740de | 991 | error = sparse_keymap_setup(dev->hotkey_dev, toshiba_acpi_keymap, NULL); |
384a7cd9 DT |
992 | if (error) |
993 | goto err_free_dev; | |
994 | ||
29cd293f SF |
995 | /* |
996 | * For some machines the SCI responsible for providing hotkey | |
997 | * notification doesn't fire. We can trigger the notification | |
998 | * whenever the Fn key is pressed using the NTFY method, if | |
999 | * supported, so if it's present set up an i8042 key filter | |
1000 | * for this purpose. | |
1001 | */ | |
1002 | status = AE_ERROR; | |
1003 | ec_handle = ec_get_handle(); | |
e2e19606 | 1004 | if (ec_handle && acpi_has_method(ec_handle, "NTFY")) { |
29cd293f SF |
1005 | INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work); |
1006 | ||
1007 | error = i8042_install_filter(toshiba_acpi_i8042_filter); | |
1008 | if (error) { | |
1009 | pr_err("Error installing key filter\n"); | |
1010 | goto err_free_keymap; | |
1011 | } | |
1012 | ||
1013 | dev->ntfy_supported = 1; | |
1014 | } | |
1015 | ||
1016 | /* | |
1017 | * Determine hotkey query interface. Prefer using the INFO | |
1018 | * method when it is available. | |
1019 | */ | |
e2e19606 | 1020 | if (acpi_has_method(dev->acpi_dev->handle, "INFO")) |
29cd293f | 1021 | dev->info_supported = 1; |
e2e19606 | 1022 | else { |
29cd293f SF |
1023 | hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result); |
1024 | if (hci_result == HCI_SUCCESS) | |
1025 | dev->system_event_supported = 1; | |
1026 | } | |
1027 | ||
1028 | if (!dev->info_supported && !dev->system_event_supported) { | |
1029 | pr_warn("No hotkey query interface found\n"); | |
1030 | goto err_remove_filter; | |
1031 | } | |
1032 | ||
6e02cc7e | 1033 | status = acpi_evaluate_object(dev->acpi_dev->handle, "ENAB", NULL, NULL); |
384a7cd9 | 1034 | if (ACPI_FAILURE(status)) { |
7e33460d | 1035 | pr_info("Unable to enable hotkeys\n"); |
384a7cd9 | 1036 | error = -ENODEV; |
29cd293f | 1037 | goto err_remove_filter; |
6335e4d5 MG |
1038 | } |
1039 | ||
135740de | 1040 | error = input_register_device(dev->hotkey_dev); |
384a7cd9 | 1041 | if (error) { |
7e33460d | 1042 | pr_info("Unable to register input device\n"); |
29cd293f | 1043 | goto err_remove_filter; |
6335e4d5 MG |
1044 | } |
1045 | ||
29cd293f | 1046 | hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &hci_result); |
6335e4d5 | 1047 | return 0; |
384a7cd9 | 1048 | |
29cd293f SF |
1049 | err_remove_filter: |
1050 | if (dev->ntfy_supported) | |
1051 | i8042_remove_filter(toshiba_acpi_i8042_filter); | |
384a7cd9 | 1052 | err_free_keymap: |
135740de | 1053 | sparse_keymap_free(dev->hotkey_dev); |
384a7cd9 | 1054 | err_free_dev: |
135740de SF |
1055 | input_free_device(dev->hotkey_dev); |
1056 | dev->hotkey_dev = NULL; | |
384a7cd9 | 1057 | return error; |
6335e4d5 MG |
1058 | } |
1059 | ||
b859f159 | 1060 | static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev) |
62cce752 SF |
1061 | { |
1062 | struct backlight_properties props; | |
1063 | int brightness; | |
1064 | int ret; | |
121b7b0d | 1065 | bool enabled; |
62cce752 SF |
1066 | |
1067 | /* | |
1068 | * Some machines don't support the backlight methods at all, and | |
1069 | * others support it read-only. Either of these is pretty useless, | |
1070 | * so only register the backlight device if the backlight method | |
1071 | * supports both reads and writes. | |
1072 | */ | |
1073 | brightness = __get_lcd_brightness(dev); | |
1074 | if (brightness < 0) | |
1075 | return 0; | |
1076 | ret = set_lcd_brightness(dev, brightness); | |
1077 | if (ret) { | |
1078 | pr_debug("Backlight method is read-only, disabling backlight support\n"); | |
1079 | return 0; | |
1080 | } | |
1081 | ||
121b7b0d AI |
1082 | /* Determine whether or not BIOS supports transflective backlight */ |
1083 | ret = get_tr_backlight_status(dev, &enabled); | |
1084 | dev->tr_backlight_supported = !ret; | |
1085 | ||
53039f22 | 1086 | memset(&props, 0, sizeof(props)); |
62cce752 SF |
1087 | props.type = BACKLIGHT_PLATFORM; |
1088 | props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1; | |
62cce752 | 1089 | |
121b7b0d AI |
1090 | /* adding an extra level and having 0 change to transflective mode */ |
1091 | if (dev->tr_backlight_supported) | |
1092 | props.max_brightness++; | |
1093 | ||
62cce752 SF |
1094 | dev->backlight_dev = backlight_device_register("toshiba", |
1095 | &dev->acpi_dev->dev, | |
1096 | dev, | |
1097 | &toshiba_backlight_data, | |
1098 | &props); | |
1099 | if (IS_ERR(dev->backlight_dev)) { | |
1100 | ret = PTR_ERR(dev->backlight_dev); | |
1101 | pr_err("Could not register toshiba backlight device\n"); | |
1102 | dev->backlight_dev = NULL; | |
1103 | return ret; | |
1104 | } | |
1105 | ||
1106 | dev->backlight_dev->props.brightness = brightness; | |
1107 | return 0; | |
1108 | } | |
1109 | ||
51fac838 | 1110 | static int toshiba_acpi_remove(struct acpi_device *acpi_dev) |
c9263557 | 1111 | { |
135740de | 1112 | struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev); |
6335e4d5 | 1113 | |
36d03f93 | 1114 | remove_toshiba_proc_entries(dev); |
c41a40c5 | 1115 | |
29cd293f SF |
1116 | if (dev->ntfy_supported) { |
1117 | i8042_remove_filter(toshiba_acpi_i8042_filter); | |
1118 | cancel_work_sync(&dev->hotkey_work); | |
1119 | } | |
1120 | ||
135740de SF |
1121 | if (dev->hotkey_dev) { |
1122 | input_unregister_device(dev->hotkey_dev); | |
1123 | sparse_keymap_free(dev->hotkey_dev); | |
1124 | } | |
c9263557 | 1125 | |
135740de SF |
1126 | if (dev->bt_rfk) { |
1127 | rfkill_unregister(dev->bt_rfk); | |
1128 | rfkill_destroy(dev->bt_rfk); | |
1129 | } | |
c9263557 | 1130 | |
135740de SF |
1131 | if (dev->backlight_dev) |
1132 | backlight_device_unregister(dev->backlight_dev); | |
c9263557 | 1133 | |
36d03f93 | 1134 | if (dev->illumination_supported) |
135740de | 1135 | led_classdev_unregister(&dev->led_dev); |
6c3f6e6c | 1136 | |
29cd293f SF |
1137 | if (toshiba_acpi) |
1138 | toshiba_acpi = NULL; | |
1139 | ||
135740de | 1140 | kfree(dev); |
c41a40c5 | 1141 | |
135740de | 1142 | return 0; |
c9263557 HM |
1143 | } |
1144 | ||
b859f159 | 1145 | static const char *find_hci_method(acpi_handle handle) |
a540d6b5 | 1146 | { |
e2e19606 | 1147 | if (acpi_has_method(handle, "GHCI")) |
a540d6b5 SF |
1148 | return "GHCI"; |
1149 | ||
e2e19606 | 1150 | if (acpi_has_method(handle, "SPFC")) |
a540d6b5 SF |
1151 | return "SPFC"; |
1152 | ||
1153 | return NULL; | |
1154 | } | |
1155 | ||
b859f159 | 1156 | static int toshiba_acpi_add(struct acpi_device *acpi_dev) |
1da177e4 | 1157 | { |
135740de | 1158 | struct toshiba_acpi_dev *dev; |
a540d6b5 | 1159 | const char *hci_method; |
36d03f93 | 1160 | u32 dummy; |
c41a40c5 | 1161 | bool bt_present; |
c41a40c5 | 1162 | int ret = 0; |
1da177e4 | 1163 | |
29cd293f SF |
1164 | if (toshiba_acpi) |
1165 | return -EBUSY; | |
1166 | ||
135740de SF |
1167 | pr_info("Toshiba Laptop ACPI Extras version %s\n", |
1168 | TOSHIBA_ACPI_VERSION); | |
1169 | ||
a540d6b5 SF |
1170 | hci_method = find_hci_method(acpi_dev->handle); |
1171 | if (!hci_method) { | |
1172 | pr_err("HCI interface not found\n"); | |
6e02cc7e | 1173 | return -ENODEV; |
a540d6b5 | 1174 | } |
6e02cc7e | 1175 | |
135740de SF |
1176 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
1177 | if (!dev) | |
1178 | return -ENOMEM; | |
1179 | dev->acpi_dev = acpi_dev; | |
a540d6b5 | 1180 | dev->method_hci = hci_method; |
135740de | 1181 | acpi_dev->driver_data = dev; |
fb9802fa | 1182 | |
6e02cc7e SF |
1183 | if (toshiba_acpi_setup_keyboard(dev)) |
1184 | pr_info("Unable to activate hotkeys\n"); | |
135740de SF |
1185 | |
1186 | mutex_init(&dev->mutex); | |
1da177e4 | 1187 | |
62cce752 SF |
1188 | ret = toshiba_acpi_setup_backlight(dev); |
1189 | if (ret) | |
135740de | 1190 | goto error; |
1da177e4 | 1191 | |
c41a40c5 | 1192 | /* Register rfkill switch for Bluetooth */ |
135740de SF |
1193 | if (hci_get_bt_present(dev, &bt_present) == HCI_SUCCESS && bt_present) { |
1194 | dev->bt_rfk = rfkill_alloc("Toshiba Bluetooth", | |
1195 | &acpi_dev->dev, | |
1196 | RFKILL_TYPE_BLUETOOTH, | |
1197 | &toshiba_rfk_ops, | |
1198 | dev); | |
1199 | if (!dev->bt_rfk) { | |
7e33460d | 1200 | pr_err("unable to allocate rfkill device\n"); |
135740de SF |
1201 | ret = -ENOMEM; |
1202 | goto error; | |
c41a40c5 | 1203 | } |
1204 | ||
135740de | 1205 | ret = rfkill_register(dev->bt_rfk); |
c41a40c5 | 1206 | if (ret) { |
7e33460d | 1207 | pr_err("unable to register rfkill device\n"); |
135740de SF |
1208 | rfkill_destroy(dev->bt_rfk); |
1209 | goto error; | |
38aefbc5 | 1210 | } |
c41a40c5 | 1211 | } |
1212 | ||
135740de SF |
1213 | if (toshiba_illumination_available(dev)) { |
1214 | dev->led_dev.name = "toshiba::illumination"; | |
1215 | dev->led_dev.max_brightness = 1; | |
1216 | dev->led_dev.brightness_set = toshiba_illumination_set; | |
1217 | dev->led_dev.brightness_get = toshiba_illumination_get; | |
1218 | if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev)) | |
36d03f93 | 1219 | dev->illumination_supported = 1; |
6c3f6e6c PD |
1220 | } |
1221 | ||
36d03f93 SF |
1222 | /* Determine whether or not BIOS supports fan and video interfaces */ |
1223 | ||
1224 | ret = get_video_status(dev, &dummy); | |
1225 | dev->video_supported = !ret; | |
1226 | ||
1227 | ret = get_fan_status(dev, &dummy); | |
1228 | dev->fan_supported = !ret; | |
1229 | ||
1230 | create_toshiba_proc_entries(dev); | |
1231 | ||
29cd293f SF |
1232 | toshiba_acpi = dev; |
1233 | ||
c41a40c5 | 1234 | return 0; |
135740de SF |
1235 | |
1236 | error: | |
51fac838 | 1237 | toshiba_acpi_remove(acpi_dev); |
135740de SF |
1238 | return ret; |
1239 | } | |
1240 | ||
1241 | static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event) | |
1242 | { | |
1243 | struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev); | |
1244 | u32 hci_result, value; | |
11948b93 | 1245 | int retries = 3; |
29cd293f | 1246 | int scancode; |
135740de | 1247 | |
29cd293f | 1248 | if (event != 0x80) |
135740de | 1249 | return; |
11948b93 | 1250 | |
29cd293f SF |
1251 | if (dev->info_supported) { |
1252 | scancode = toshiba_acpi_query_hotkey(dev); | |
1253 | if (scancode < 0) | |
1254 | pr_err("Failed to query hotkey event\n"); | |
1255 | else if (scancode != 0) | |
1256 | toshiba_acpi_report_hotkey(dev, scancode); | |
1257 | } else if (dev->system_event_supported) { | |
1258 | do { | |
1259 | hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result); | |
1260 | switch (hci_result) { | |
1261 | case HCI_SUCCESS: | |
1262 | toshiba_acpi_report_hotkey(dev, (int)value); | |
1263 | break; | |
1264 | case HCI_NOT_SUPPORTED: | |
1265 | /* | |
1266 | * This is a workaround for an unresolved | |
1267 | * issue on some machines where system events | |
1268 | * sporadically become disabled. | |
1269 | */ | |
1270 | hci_write1(dev, HCI_SYSTEM_EVENT, 1, | |
1271 | &hci_result); | |
1272 | pr_notice("Re-enabled hotkeys\n"); | |
1273 | /* fall through */ | |
1274 | default: | |
1275 | retries--; | |
1276 | break; | |
135740de | 1277 | } |
29cd293f SF |
1278 | } while (retries && hci_result != HCI_EMPTY); |
1279 | } | |
135740de SF |
1280 | } |
1281 | ||
3567a4e2 | 1282 | #ifdef CONFIG_PM_SLEEP |
43d2fd3b | 1283 | static int toshiba_acpi_suspend(struct device *device) |
29cd293f | 1284 | { |
43d2fd3b | 1285 | struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device)); |
29cd293f SF |
1286 | u32 result; |
1287 | ||
1288 | if (dev->hotkey_dev) | |
1289 | hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE, &result); | |
1290 | ||
1291 | return 0; | |
1292 | } | |
1293 | ||
43d2fd3b | 1294 | static int toshiba_acpi_resume(struct device *device) |
29cd293f | 1295 | { |
43d2fd3b | 1296 | struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device)); |
29cd293f SF |
1297 | u32 result; |
1298 | ||
1299 | if (dev->hotkey_dev) | |
1300 | hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &result); | |
1301 | ||
1302 | return 0; | |
1303 | } | |
3567a4e2 | 1304 | #endif |
135740de | 1305 | |
43d2fd3b RW |
1306 | static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm, |
1307 | toshiba_acpi_suspend, toshiba_acpi_resume); | |
1308 | ||
135740de SF |
1309 | static struct acpi_driver toshiba_acpi_driver = { |
1310 | .name = "Toshiba ACPI driver", | |
1311 | .owner = THIS_MODULE, | |
1312 | .ids = toshiba_device_ids, | |
1313 | .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, | |
1314 | .ops = { | |
1315 | .add = toshiba_acpi_add, | |
1316 | .remove = toshiba_acpi_remove, | |
1317 | .notify = toshiba_acpi_notify, | |
1318 | }, | |
43d2fd3b | 1319 | .drv.pm = &toshiba_acpi_pm, |
135740de SF |
1320 | }; |
1321 | ||
1322 | static int __init toshiba_acpi_init(void) | |
1323 | { | |
1324 | int ret; | |
1325 | ||
f11f999e SF |
1326 | /* |
1327 | * Machines with this WMI guid aren't supported due to bugs in | |
1328 | * their AML. This check relies on wmi initializing before | |
1329 | * toshiba_acpi to guarantee guids have been identified. | |
1330 | */ | |
1331 | if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) | |
1332 | return -ENODEV; | |
1333 | ||
135740de SF |
1334 | toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir); |
1335 | if (!toshiba_proc_dir) { | |
1336 | pr_err("Unable to create proc dir " PROC_TOSHIBA "\n"); | |
1337 | return -ENODEV; | |
1338 | } | |
1339 | ||
1340 | ret = acpi_bus_register_driver(&toshiba_acpi_driver); | |
1341 | if (ret) { | |
1342 | pr_err("Failed to register ACPI driver: %d\n", ret); | |
1343 | remove_proc_entry(PROC_TOSHIBA, acpi_root_dir); | |
1344 | } | |
1345 | ||
1346 | return ret; | |
1347 | } | |
1348 | ||
1349 | static void __exit toshiba_acpi_exit(void) | |
1350 | { | |
1351 | acpi_bus_unregister_driver(&toshiba_acpi_driver); | |
1352 | if (toshiba_proc_dir) | |
1353 | remove_proc_entry(PROC_TOSHIBA, acpi_root_dir); | |
1da177e4 LT |
1354 | } |
1355 | ||
1356 | module_init(toshiba_acpi_init); | |
1357 | module_exit(toshiba_acpi_exit); |