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 LT |
193 | { |
194 | struct acpi_object_list params; | |
195 | union acpi_object in_objs[1]; | |
196 | acpi_status status; | |
197 | ||
b2b7910d | 198 | params.count = ARRAY_SIZE(in_objs); |
1da177e4 LT |
199 | params.pointer = in_objs; |
200 | in_objs[0].type = ACPI_TYPE_INTEGER; | |
201 | in_objs[0].integer.value = val; | |
202 | ||
4be44fcd | 203 | status = acpi_evaluate_object(NULL, (char *)methodName, ¶ms, NULL); |
32bcd5cb | 204 | return (status == AE_OK) ? 0 : -EIO; |
1da177e4 LT |
205 | } |
206 | ||
1da177e4 LT |
207 | /* Perform a raw HCI call. Here we don't care about input or output buffer |
208 | * format. | |
209 | */ | |
135740de SF |
210 | static acpi_status hci_raw(struct toshiba_acpi_dev *dev, |
211 | const u32 in[HCI_WORDS], u32 out[HCI_WORDS]) | |
1da177e4 LT |
212 | { |
213 | struct acpi_object_list params; | |
214 | union acpi_object in_objs[HCI_WORDS]; | |
215 | struct acpi_buffer results; | |
4be44fcd | 216 | union acpi_object out_objs[HCI_WORDS + 1]; |
1da177e4 LT |
217 | acpi_status status; |
218 | int i; | |
219 | ||
220 | params.count = HCI_WORDS; | |
221 | params.pointer = in_objs; | |
222 | for (i = 0; i < HCI_WORDS; ++i) { | |
223 | in_objs[i].type = ACPI_TYPE_INTEGER; | |
224 | in_objs[i].integer.value = in[i]; | |
225 | } | |
226 | ||
227 | results.length = sizeof(out_objs); | |
228 | results.pointer = out_objs; | |
229 | ||
6e02cc7e SF |
230 | status = acpi_evaluate_object(dev->acpi_dev->handle, |
231 | (char *)dev->method_hci, ¶ms, | |
4be44fcd | 232 | &results); |
1da177e4 LT |
233 | if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) { |
234 | for (i = 0; i < out_objs->package.count; ++i) { | |
235 | out[i] = out_objs->package.elements[i].integer.value; | |
236 | } | |
237 | } | |
238 | ||
239 | return status; | |
240 | } | |
241 | ||
c41a40c5 | 242 | /* common hci tasks (get or set one or two value) |
1da177e4 LT |
243 | * |
244 | * In addition to the ACPI status, the HCI system returns a result which | |
245 | * may be useful (such as "not supported"). | |
246 | */ | |
247 | ||
135740de SF |
248 | static acpi_status hci_write1(struct toshiba_acpi_dev *dev, u32 reg, |
249 | u32 in1, u32 *result) | |
1da177e4 LT |
250 | { |
251 | u32 in[HCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 }; | |
252 | u32 out[HCI_WORDS]; | |
135740de | 253 | acpi_status status = hci_raw(dev, in, out); |
1da177e4 LT |
254 | *result = (status == AE_OK) ? out[0] : HCI_FAILURE; |
255 | return status; | |
256 | } | |
257 | ||
135740de SF |
258 | static acpi_status hci_read1(struct toshiba_acpi_dev *dev, u32 reg, |
259 | u32 *out1, u32 *result) | |
1da177e4 LT |
260 | { |
261 | u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 }; | |
262 | u32 out[HCI_WORDS]; | |
135740de | 263 | acpi_status status = hci_raw(dev, in, out); |
1da177e4 LT |
264 | *out1 = out[2]; |
265 | *result = (status == AE_OK) ? out[0] : HCI_FAILURE; | |
266 | return status; | |
267 | } | |
268 | ||
135740de SF |
269 | static acpi_status hci_write2(struct toshiba_acpi_dev *dev, u32 reg, |
270 | u32 in1, u32 in2, u32 *result) | |
c41a40c5 | 271 | { |
272 | u32 in[HCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 }; | |
273 | u32 out[HCI_WORDS]; | |
135740de | 274 | acpi_status status = hci_raw(dev, in, out); |
c41a40c5 | 275 | *result = (status == AE_OK) ? out[0] : HCI_FAILURE; |
276 | return status; | |
277 | } | |
278 | ||
135740de SF |
279 | static acpi_status hci_read2(struct toshiba_acpi_dev *dev, u32 reg, |
280 | u32 *out1, u32 *out2, u32 *result) | |
c41a40c5 | 281 | { |
282 | u32 in[HCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 }; | |
283 | u32 out[HCI_WORDS]; | |
135740de | 284 | acpi_status status = hci_raw(dev, in, out); |
c41a40c5 | 285 | *out1 = out[2]; |
286 | *out2 = out[3]; | |
287 | *result = (status == AE_OK) ? out[0] : HCI_FAILURE; | |
288 | return status; | |
289 | } | |
290 | ||
6c3f6e6c | 291 | /* Illumination support */ |
135740de | 292 | static int toshiba_illumination_available(struct toshiba_acpi_dev *dev) |
6c3f6e6c PD |
293 | { |
294 | u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 }; | |
295 | u32 out[HCI_WORDS]; | |
296 | acpi_status status; | |
297 | ||
298 | in[0] = 0xf100; | |
135740de | 299 | status = hci_raw(dev, in, out); |
6c3f6e6c | 300 | if (ACPI_FAILURE(status)) { |
7e33460d | 301 | pr_info("Illumination device not available\n"); |
6c3f6e6c PD |
302 | return 0; |
303 | } | |
304 | in[0] = 0xf400; | |
135740de | 305 | status = hci_raw(dev, in, out); |
6c3f6e6c PD |
306 | return 1; |
307 | } | |
308 | ||
309 | static void toshiba_illumination_set(struct led_classdev *cdev, | |
310 | enum led_brightness brightness) | |
311 | { | |
135740de SF |
312 | struct toshiba_acpi_dev *dev = container_of(cdev, |
313 | struct toshiba_acpi_dev, led_dev); | |
6c3f6e6c PD |
314 | u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 }; |
315 | u32 out[HCI_WORDS]; | |
316 | acpi_status status; | |
317 | ||
318 | /* First request : initialize communication. */ | |
319 | in[0] = 0xf100; | |
135740de | 320 | status = hci_raw(dev, in, out); |
6c3f6e6c | 321 | if (ACPI_FAILURE(status)) { |
7e33460d | 322 | pr_info("Illumination device not available\n"); |
6c3f6e6c PD |
323 | return; |
324 | } | |
325 | ||
326 | if (brightness) { | |
327 | /* Switch the illumination on */ | |
328 | in[0] = 0xf400; | |
329 | in[1] = 0x14e; | |
330 | in[2] = 1; | |
135740de | 331 | status = hci_raw(dev, in, out); |
6c3f6e6c | 332 | if (ACPI_FAILURE(status)) { |
7e33460d | 333 | pr_info("ACPI call for illumination failed\n"); |
6c3f6e6c PD |
334 | return; |
335 | } | |
336 | } else { | |
337 | /* Switch the illumination off */ | |
338 | in[0] = 0xf400; | |
339 | in[1] = 0x14e; | |
340 | in[2] = 0; | |
135740de | 341 | status = hci_raw(dev, in, out); |
6c3f6e6c | 342 | if (ACPI_FAILURE(status)) { |
7e33460d | 343 | pr_info("ACPI call for illumination failed.\n"); |
6c3f6e6c PD |
344 | return; |
345 | } | |
346 | } | |
347 | ||
348 | /* Last request : close communication. */ | |
349 | in[0] = 0xf200; | |
350 | in[1] = 0; | |
351 | in[2] = 0; | |
135740de | 352 | hci_raw(dev, in, out); |
6c3f6e6c PD |
353 | } |
354 | ||
355 | static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev) | |
356 | { | |
135740de SF |
357 | struct toshiba_acpi_dev *dev = container_of(cdev, |
358 | struct toshiba_acpi_dev, led_dev); | |
6c3f6e6c PD |
359 | u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 }; |
360 | u32 out[HCI_WORDS]; | |
361 | acpi_status status; | |
362 | enum led_brightness result; | |
363 | ||
364 | /*Â First request : initialize communication. */ | |
365 | in[0] = 0xf100; | |
135740de | 366 | status = hci_raw(dev, in, out); |
6c3f6e6c | 367 | if (ACPI_FAILURE(status)) { |
7e33460d | 368 | pr_info("Illumination device not available\n"); |
6c3f6e6c PD |
369 | return LED_OFF; |
370 | } | |
371 | ||
372 | /* Check the illumination */ | |
373 | in[0] = 0xf300; | |
374 | in[1] = 0x14e; | |
135740de | 375 | status = hci_raw(dev, in, out); |
6c3f6e6c | 376 | if (ACPI_FAILURE(status)) { |
7e33460d | 377 | pr_info("ACPI call for illumination failed.\n"); |
6c3f6e6c PD |
378 | return LED_OFF; |
379 | } | |
380 | ||
381 | result = out[2] ? LED_FULL : LED_OFF; | |
382 | ||
383 | /* Last request : close communication. */ | |
384 | in[0] = 0xf200; | |
385 | in[1] = 0; | |
386 | in[2] = 0; | |
135740de | 387 | hci_raw(dev, in, out); |
6c3f6e6c PD |
388 | |
389 | return result; | |
390 | } | |
391 | ||
c41a40c5 | 392 | /* Bluetooth rfkill handlers */ |
393 | ||
135740de | 394 | static u32 hci_get_bt_present(struct toshiba_acpi_dev *dev, bool *present) |
c41a40c5 | 395 | { |
396 | u32 hci_result; | |
397 | u32 value, value2; | |
398 | ||
399 | value = 0; | |
400 | value2 = 0; | |
135740de | 401 | hci_read2(dev, HCI_WIRELESS, &value, &value2, &hci_result); |
c41a40c5 | 402 | if (hci_result == HCI_SUCCESS) |
403 | *present = (value & HCI_WIRELESS_BT_PRESENT) ? true : false; | |
404 | ||
405 | return hci_result; | |
406 | } | |
407 | ||
135740de | 408 | static u32 hci_get_radio_state(struct toshiba_acpi_dev *dev, bool *radio_state) |
c41a40c5 | 409 | { |
410 | u32 hci_result; | |
411 | u32 value, value2; | |
412 | ||
413 | value = 0; | |
414 | value2 = 0x0001; | |
135740de | 415 | hci_read2(dev, HCI_WIRELESS, &value, &value2, &hci_result); |
c41a40c5 | 416 | |
417 | *radio_state = value & HCI_WIRELESS_KILL_SWITCH; | |
418 | return hci_result; | |
419 | } | |
420 | ||
19d337df | 421 | static int bt_rfkill_set_block(void *data, bool blocked) |
c41a40c5 | 422 | { |
19d337df | 423 | struct toshiba_acpi_dev *dev = data; |
c41a40c5 | 424 | u32 result1, result2; |
425 | u32 value; | |
19d337df | 426 | int err; |
c41a40c5 | 427 | bool radio_state; |
c41a40c5 | 428 | |
19d337df | 429 | value = (blocked == false); |
c41a40c5 | 430 | |
19d337df | 431 | mutex_lock(&dev->mutex); |
135740de | 432 | if (hci_get_radio_state(dev, &radio_state) != HCI_SUCCESS) { |
32bcd5cb | 433 | err = -EIO; |
19d337df JB |
434 | goto out; |
435 | } | |
c41a40c5 | 436 | |
19d337df JB |
437 | if (!radio_state) { |
438 | err = 0; | |
439 | goto out; | |
c41a40c5 | 440 | } |
441 | ||
135740de SF |
442 | hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_POWER, &result1); |
443 | hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_ATTACH, &result2); | |
c41a40c5 | 444 | |
445 | if (result1 != HCI_SUCCESS || result2 != HCI_SUCCESS) | |
32bcd5cb | 446 | err = -EIO; |
19d337df JB |
447 | else |
448 | err = 0; | |
449 | out: | |
450 | mutex_unlock(&dev->mutex); | |
451 | return err; | |
c41a40c5 | 452 | } |
453 | ||
19d337df | 454 | static void bt_rfkill_poll(struct rfkill *rfkill, void *data) |
c41a40c5 | 455 | { |
c41a40c5 | 456 | bool new_rfk_state; |
457 | bool value; | |
458 | u32 hci_result; | |
19d337df JB |
459 | struct toshiba_acpi_dev *dev = data; |
460 | ||
461 | mutex_lock(&dev->mutex); | |
c41a40c5 | 462 | |
135740de | 463 | hci_result = hci_get_radio_state(dev, &value); |
19d337df JB |
464 | if (hci_result != HCI_SUCCESS) { |
465 | /* Can't do anything useful */ | |
466 | mutex_unlock(&dev->mutex); | |
82e7784f | 467 | return; |
19d337df | 468 | } |
c41a40c5 | 469 | |
470 | new_rfk_state = value; | |
471 | ||
c41a40c5 | 472 | mutex_unlock(&dev->mutex); |
473 | ||
19d337df JB |
474 | if (rfkill_set_hw_state(rfkill, !new_rfk_state)) |
475 | bt_rfkill_set_block(data, true); | |
c41a40c5 | 476 | } |
477 | ||
19d337df JB |
478 | static const struct rfkill_ops toshiba_rfk_ops = { |
479 | .set_block = bt_rfkill_set_block, | |
480 | .poll = bt_rfkill_poll, | |
481 | }; | |
482 | ||
121b7b0d AI |
483 | static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, bool *enabled) |
484 | { | |
485 | u32 hci_result; | |
486 | u32 status; | |
487 | ||
488 | hci_read1(dev, HCI_TR_BACKLIGHT, &status, &hci_result); | |
489 | *enabled = !status; | |
490 | return hci_result == HCI_SUCCESS ? 0 : -EIO; | |
491 | } | |
492 | ||
493 | static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, bool enable) | |
494 | { | |
495 | u32 hci_result; | |
496 | u32 value = !enable; | |
497 | ||
498 | hci_write1(dev, HCI_TR_BACKLIGHT, value, &hci_result); | |
499 | return hci_result == HCI_SUCCESS ? 0 : -EIO; | |
500 | } | |
501 | ||
4be44fcd | 502 | static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ; |
1da177e4 | 503 | |
62cce752 | 504 | static int __get_lcd_brightness(struct toshiba_acpi_dev *dev) |
1da177e4 LT |
505 | { |
506 | u32 hci_result; | |
507 | u32 value; | |
121b7b0d AI |
508 | int brightness = 0; |
509 | ||
510 | if (dev->tr_backlight_supported) { | |
511 | bool enabled; | |
512 | int ret = get_tr_backlight_status(dev, &enabled); | |
513 | if (ret) | |
514 | return ret; | |
515 | if (enabled) | |
516 | return 0; | |
517 | brightness++; | |
518 | } | |
1da177e4 | 519 | |
135740de | 520 | hci_read1(dev, HCI_LCD_BRIGHTNESS, &value, &hci_result); |
32bcd5cb | 521 | if (hci_result == HCI_SUCCESS) |
121b7b0d | 522 | return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT); |
32bcd5cb SF |
523 | |
524 | return -EIO; | |
c9263557 HM |
525 | } |
526 | ||
62cce752 SF |
527 | static int get_lcd_brightness(struct backlight_device *bd) |
528 | { | |
529 | struct toshiba_acpi_dev *dev = bl_get_data(bd); | |
530 | return __get_lcd_brightness(dev); | |
531 | } | |
532 | ||
936c8bcd | 533 | static int lcd_proc_show(struct seq_file *m, void *v) |
c9263557 | 534 | { |
135740de SF |
535 | struct toshiba_acpi_dev *dev = m->private; |
536 | int value; | |
121b7b0d | 537 | int levels; |
135740de SF |
538 | |
539 | if (!dev->backlight_dev) | |
540 | return -ENODEV; | |
c9263557 | 541 | |
121b7b0d | 542 | levels = dev->backlight_dev->props.max_brightness + 1; |
62cce752 | 543 | value = get_lcd_brightness(dev->backlight_dev); |
c9263557 | 544 | if (value >= 0) { |
936c8bcd | 545 | seq_printf(m, "brightness: %d\n", value); |
121b7b0d | 546 | seq_printf(m, "brightness_levels: %d\n", levels); |
32bcd5cb | 547 | return 0; |
1da177e4 LT |
548 | } |
549 | ||
32bcd5cb SF |
550 | pr_err("Error reading LCD brightness\n"); |
551 | return -EIO; | |
936c8bcd AD |
552 | } |
553 | ||
554 | static int lcd_proc_open(struct inode *inode, struct file *file) | |
555 | { | |
d9dda78b | 556 | return single_open(file, lcd_proc_show, PDE_DATA(inode)); |
1da177e4 LT |
557 | } |
558 | ||
62cce752 | 559 | static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value) |
c9263557 HM |
560 | { |
561 | u32 hci_result; | |
562 | ||
121b7b0d AI |
563 | if (dev->tr_backlight_supported) { |
564 | bool enable = !value; | |
565 | int ret = set_tr_backlight_status(dev, enable); | |
566 | if (ret) | |
567 | return ret; | |
568 | if (value) | |
569 | value--; | |
570 | } | |
571 | ||
c9263557 | 572 | value = value << HCI_LCD_BRIGHTNESS_SHIFT; |
135740de | 573 | hci_write1(dev, HCI_LCD_BRIGHTNESS, value, &hci_result); |
32bcd5cb | 574 | return hci_result == HCI_SUCCESS ? 0 : -EIO; |
c9263557 HM |
575 | } |
576 | ||
577 | static int set_lcd_status(struct backlight_device *bd) | |
578 | { | |
135740de | 579 | struct toshiba_acpi_dev *dev = bl_get_data(bd); |
62cce752 | 580 | return set_lcd_brightness(dev, bd->props.brightness); |
c9263557 HM |
581 | } |
582 | ||
936c8bcd AD |
583 | static ssize_t lcd_proc_write(struct file *file, const char __user *buf, |
584 | size_t count, loff_t *pos) | |
1da177e4 | 585 | { |
d9dda78b | 586 | struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); |
936c8bcd AD |
587 | char cmd[42]; |
588 | size_t len; | |
1da177e4 | 589 | int value; |
c8af57eb | 590 | int ret; |
121b7b0d | 591 | int levels = dev->backlight_dev->props.max_brightness + 1; |
1da177e4 | 592 | |
936c8bcd AD |
593 | len = min(count, sizeof(cmd) - 1); |
594 | if (copy_from_user(cmd, buf, len)) | |
595 | return -EFAULT; | |
596 | cmd[len] = '\0'; | |
597 | ||
598 | if (sscanf(cmd, " brightness : %i", &value) == 1 && | |
121b7b0d | 599 | value >= 0 && value < levels) { |
62cce752 | 600 | ret = set_lcd_brightness(dev, value); |
c8af57eb MO |
601 | if (ret == 0) |
602 | ret = count; | |
603 | } else { | |
c9263557 | 604 | ret = -EINVAL; |
c8af57eb | 605 | } |
c9263557 | 606 | return ret; |
1da177e4 LT |
607 | } |
608 | ||
936c8bcd AD |
609 | static const struct file_operations lcd_proc_fops = { |
610 | .owner = THIS_MODULE, | |
611 | .open = lcd_proc_open, | |
612 | .read = seq_read, | |
613 | .llseek = seq_lseek, | |
614 | .release = single_release, | |
615 | .write = lcd_proc_write, | |
616 | }; | |
617 | ||
36d03f93 SF |
618 | static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status) |
619 | { | |
620 | u32 hci_result; | |
621 | ||
622 | hci_read1(dev, HCI_VIDEO_OUT, status, &hci_result); | |
623 | return hci_result == HCI_SUCCESS ? 0 : -EIO; | |
624 | } | |
625 | ||
936c8bcd | 626 | static int video_proc_show(struct seq_file *m, void *v) |
1da177e4 | 627 | { |
135740de | 628 | struct toshiba_acpi_dev *dev = m->private; |
1da177e4 | 629 | u32 value; |
36d03f93 | 630 | int ret; |
1da177e4 | 631 | |
36d03f93 SF |
632 | ret = get_video_status(dev, &value); |
633 | if (!ret) { | |
1da177e4 LT |
634 | int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0; |
635 | int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0; | |
4be44fcd | 636 | int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0; |
936c8bcd AD |
637 | seq_printf(m, "lcd_out: %d\n", is_lcd); |
638 | seq_printf(m, "crt_out: %d\n", is_crt); | |
639 | seq_printf(m, "tv_out: %d\n", is_tv); | |
1da177e4 LT |
640 | } |
641 | ||
36d03f93 | 642 | return ret; |
1da177e4 LT |
643 | } |
644 | ||
936c8bcd | 645 | static int video_proc_open(struct inode *inode, struct file *file) |
1da177e4 | 646 | { |
d9dda78b | 647 | return single_open(file, video_proc_show, PDE_DATA(inode)); |
936c8bcd AD |
648 | } |
649 | ||
650 | static ssize_t video_proc_write(struct file *file, const char __user *buf, | |
651 | size_t count, loff_t *pos) | |
652 | { | |
d9dda78b | 653 | struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); |
936c8bcd | 654 | char *cmd, *buffer; |
36d03f93 | 655 | int ret; |
1da177e4 LT |
656 | int value; |
657 | int remain = count; | |
658 | int lcd_out = -1; | |
659 | int crt_out = -1; | |
660 | int tv_out = -1; | |
b4482a4b | 661 | u32 video_out; |
1da177e4 | 662 | |
936c8bcd AD |
663 | cmd = kmalloc(count + 1, GFP_KERNEL); |
664 | if (!cmd) | |
665 | return -ENOMEM; | |
666 | if (copy_from_user(cmd, buf, count)) { | |
667 | kfree(cmd); | |
668 | return -EFAULT; | |
669 | } | |
670 | cmd[count] = '\0'; | |
671 | ||
672 | buffer = cmd; | |
673 | ||
1da177e4 LT |
674 | /* scan expression. Multiple expressions may be delimited with ; |
675 | * | |
676 | * NOTE: to keep scanning simple, invalid fields are ignored | |
677 | */ | |
678 | while (remain) { | |
679 | if (sscanf(buffer, " lcd_out : %i", &value) == 1) | |
680 | lcd_out = value & 1; | |
681 | else if (sscanf(buffer, " crt_out : %i", &value) == 1) | |
682 | crt_out = value & 1; | |
683 | else if (sscanf(buffer, " tv_out : %i", &value) == 1) | |
684 | tv_out = value & 1; | |
685 | /* advance to one character past the next ; */ | |
686 | do { | |
687 | ++buffer; | |
688 | --remain; | |
689 | } | |
4be44fcd | 690 | while (remain && *(buffer - 1) != ';'); |
1da177e4 LT |
691 | } |
692 | ||
936c8bcd AD |
693 | kfree(cmd); |
694 | ||
36d03f93 SF |
695 | ret = get_video_status(dev, &video_out); |
696 | if (!ret) { | |
9e113e00 | 697 | unsigned int new_video_out = video_out; |
1da177e4 LT |
698 | if (lcd_out != -1) |
699 | _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out); | |
700 | if (crt_out != -1) | |
701 | _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out); | |
702 | if (tv_out != -1) | |
703 | _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out); | |
704 | /* To avoid unnecessary video disruption, only write the new | |
705 | * video setting if something changed. */ | |
706 | if (new_video_out != video_out) | |
32bcd5cb | 707 | ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out); |
1da177e4 LT |
708 | } |
709 | ||
32bcd5cb | 710 | return ret ? ret : count; |
1da177e4 LT |
711 | } |
712 | ||
936c8bcd AD |
713 | static const struct file_operations video_proc_fops = { |
714 | .owner = THIS_MODULE, | |
715 | .open = video_proc_open, | |
716 | .read = seq_read, | |
717 | .llseek = seq_lseek, | |
718 | .release = single_release, | |
719 | .write = video_proc_write, | |
720 | }; | |
721 | ||
36d03f93 SF |
722 | static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status) |
723 | { | |
724 | u32 hci_result; | |
725 | ||
726 | hci_read1(dev, HCI_FAN, status, &hci_result); | |
727 | return hci_result == HCI_SUCCESS ? 0 : -EIO; | |
728 | } | |
729 | ||
936c8bcd | 730 | static int fan_proc_show(struct seq_file *m, void *v) |
1da177e4 | 731 | { |
135740de | 732 | struct toshiba_acpi_dev *dev = m->private; |
36d03f93 | 733 | int ret; |
1da177e4 LT |
734 | u32 value; |
735 | ||
36d03f93 SF |
736 | ret = get_fan_status(dev, &value); |
737 | if (!ret) { | |
936c8bcd | 738 | seq_printf(m, "running: %d\n", (value > 0)); |
135740de | 739 | seq_printf(m, "force_on: %d\n", dev->force_fan); |
1da177e4 LT |
740 | } |
741 | ||
36d03f93 | 742 | return ret; |
936c8bcd AD |
743 | } |
744 | ||
745 | static int fan_proc_open(struct inode *inode, struct file *file) | |
746 | { | |
d9dda78b | 747 | return single_open(file, fan_proc_show, PDE_DATA(inode)); |
1da177e4 LT |
748 | } |
749 | ||
936c8bcd AD |
750 | static ssize_t fan_proc_write(struct file *file, const char __user *buf, |
751 | size_t count, loff_t *pos) | |
1da177e4 | 752 | { |
d9dda78b | 753 | struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); |
936c8bcd AD |
754 | char cmd[42]; |
755 | size_t len; | |
1da177e4 LT |
756 | int value; |
757 | u32 hci_result; | |
758 | ||
936c8bcd AD |
759 | len = min(count, sizeof(cmd) - 1); |
760 | if (copy_from_user(cmd, buf, len)) | |
761 | return -EFAULT; | |
762 | cmd[len] = '\0'; | |
763 | ||
764 | if (sscanf(cmd, " force_on : %i", &value) == 1 && | |
4be44fcd | 765 | value >= 0 && value <= 1) { |
135740de | 766 | hci_write1(dev, HCI_FAN, value, &hci_result); |
1da177e4 | 767 | if (hci_result != HCI_SUCCESS) |
32bcd5cb | 768 | return -EIO; |
1da177e4 | 769 | else |
135740de | 770 | dev->force_fan = value; |
1da177e4 LT |
771 | } else { |
772 | return -EINVAL; | |
773 | } | |
774 | ||
775 | return count; | |
776 | } | |
777 | ||
936c8bcd AD |
778 | static const struct file_operations fan_proc_fops = { |
779 | .owner = THIS_MODULE, | |
780 | .open = fan_proc_open, | |
781 | .read = seq_read, | |
782 | .llseek = seq_lseek, | |
783 | .release = single_release, | |
784 | .write = fan_proc_write, | |
785 | }; | |
786 | ||
787 | static int keys_proc_show(struct seq_file *m, void *v) | |
1da177e4 | 788 | { |
135740de | 789 | struct toshiba_acpi_dev *dev = m->private; |
1da177e4 LT |
790 | u32 hci_result; |
791 | u32 value; | |
792 | ||
11948b93 | 793 | if (!dev->key_event_valid && dev->system_event_supported) { |
135740de | 794 | hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result); |
1da177e4 | 795 | if (hci_result == HCI_SUCCESS) { |
135740de SF |
796 | dev->key_event_valid = 1; |
797 | dev->last_key_event = value; | |
1da177e4 LT |
798 | } else if (hci_result == HCI_EMPTY) { |
799 | /* better luck next time */ | |
800 | } else if (hci_result == HCI_NOT_SUPPORTED) { | |
801 | /* This is a workaround for an unresolved issue on | |
802 | * some machines where system events sporadically | |
803 | * become disabled. */ | |
135740de | 804 | hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result); |
7e33460d | 805 | pr_notice("Re-enabled hotkeys\n"); |
1da177e4 | 806 | } else { |
7e33460d | 807 | pr_err("Error reading hotkey status\n"); |
32bcd5cb | 808 | return -EIO; |
1da177e4 LT |
809 | } |
810 | } | |
811 | ||
135740de SF |
812 | seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid); |
813 | seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event); | |
936c8bcd AD |
814 | return 0; |
815 | } | |
1da177e4 | 816 | |
936c8bcd AD |
817 | static int keys_proc_open(struct inode *inode, struct file *file) |
818 | { | |
d9dda78b | 819 | return single_open(file, keys_proc_show, PDE_DATA(inode)); |
1da177e4 LT |
820 | } |
821 | ||
936c8bcd AD |
822 | static ssize_t keys_proc_write(struct file *file, const char __user *buf, |
823 | size_t count, loff_t *pos) | |
1da177e4 | 824 | { |
d9dda78b | 825 | struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); |
936c8bcd AD |
826 | char cmd[42]; |
827 | size_t len; | |
1da177e4 LT |
828 | int value; |
829 | ||
936c8bcd AD |
830 | len = min(count, sizeof(cmd) - 1); |
831 | if (copy_from_user(cmd, buf, len)) | |
832 | return -EFAULT; | |
833 | cmd[len] = '\0'; | |
834 | ||
835 | if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0) { | |
135740de | 836 | dev->key_event_valid = 0; |
1da177e4 LT |
837 | } else { |
838 | return -EINVAL; | |
839 | } | |
840 | ||
841 | return count; | |
842 | } | |
843 | ||
936c8bcd AD |
844 | static const struct file_operations keys_proc_fops = { |
845 | .owner = THIS_MODULE, | |
846 | .open = keys_proc_open, | |
847 | .read = seq_read, | |
848 | .llseek = seq_lseek, | |
849 | .release = single_release, | |
850 | .write = keys_proc_write, | |
851 | }; | |
852 | ||
853 | static int version_proc_show(struct seq_file *m, void *v) | |
1da177e4 | 854 | { |
936c8bcd AD |
855 | seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION); |
856 | seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION); | |
857 | return 0; | |
1da177e4 LT |
858 | } |
859 | ||
936c8bcd AD |
860 | static int version_proc_open(struct inode *inode, struct file *file) |
861 | { | |
d9dda78b | 862 | return single_open(file, version_proc_show, PDE_DATA(inode)); |
936c8bcd AD |
863 | } |
864 | ||
865 | static const struct file_operations version_proc_fops = { | |
866 | .owner = THIS_MODULE, | |
867 | .open = version_proc_open, | |
868 | .read = seq_read, | |
869 | .llseek = seq_lseek, | |
870 | .release = single_release, | |
871 | }; | |
872 | ||
1da177e4 LT |
873 | /* proc and module init |
874 | */ | |
875 | ||
876 | #define PROC_TOSHIBA "toshiba" | |
877 | ||
b859f159 | 878 | static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev) |
1da177e4 | 879 | { |
36d03f93 SF |
880 | if (dev->backlight_dev) |
881 | proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir, | |
882 | &lcd_proc_fops, dev); | |
883 | if (dev->video_supported) | |
884 | proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir, | |
885 | &video_proc_fops, dev); | |
886 | if (dev->fan_supported) | |
887 | proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir, | |
888 | &fan_proc_fops, dev); | |
889 | if (dev->hotkey_dev) | |
890 | proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir, | |
891 | &keys_proc_fops, dev); | |
135740de SF |
892 | proc_create_data("version", S_IRUGO, toshiba_proc_dir, |
893 | &version_proc_fops, dev); | |
1da177e4 LT |
894 | } |
895 | ||
36d03f93 | 896 | static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev) |
1da177e4 | 897 | { |
36d03f93 SF |
898 | if (dev->backlight_dev) |
899 | remove_proc_entry("lcd", toshiba_proc_dir); | |
900 | if (dev->video_supported) | |
901 | remove_proc_entry("video", toshiba_proc_dir); | |
902 | if (dev->fan_supported) | |
903 | remove_proc_entry("fan", toshiba_proc_dir); | |
904 | if (dev->hotkey_dev) | |
905 | remove_proc_entry("keys", toshiba_proc_dir); | |
936c8bcd | 906 | remove_proc_entry("version", toshiba_proc_dir); |
1da177e4 LT |
907 | } |
908 | ||
acc2472e | 909 | static const struct backlight_ops toshiba_backlight_data = { |
121b7b0d | 910 | .options = BL_CORE_SUSPENDRESUME, |
62cce752 SF |
911 | .get_brightness = get_lcd_brightness, |
912 | .update_status = set_lcd_status, | |
c9263557 HM |
913 | }; |
914 | ||
29cd293f SF |
915 | static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str, |
916 | struct serio *port) | |
917 | { | |
918 | if (str & 0x20) | |
919 | return false; | |
920 | ||
921 | if (unlikely(data == 0xe0)) | |
922 | return false; | |
923 | ||
924 | if ((data & 0x7f) == TOS1900_FN_SCAN) { | |
925 | schedule_work(&toshiba_acpi->hotkey_work); | |
926 | return true; | |
927 | } | |
928 | ||
929 | return false; | |
930 | } | |
931 | ||
932 | static void toshiba_acpi_hotkey_work(struct work_struct *work) | |
933 | { | |
934 | acpi_handle ec_handle = ec_get_handle(); | |
935 | acpi_status status; | |
936 | ||
937 | if (!ec_handle) | |
938 | return; | |
939 | ||
940 | status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL); | |
941 | if (ACPI_FAILURE(status)) | |
942 | pr_err("ACPI NTFY method execution failed\n"); | |
943 | } | |
944 | ||
945 | /* | |
946 | * Returns hotkey scancode, or < 0 on failure. | |
947 | */ | |
948 | static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev) | |
949 | { | |
950 | struct acpi_buffer buf; | |
951 | union acpi_object out_obj; | |
952 | acpi_status status; | |
953 | ||
954 | buf.pointer = &out_obj; | |
955 | buf.length = sizeof(out_obj); | |
956 | ||
957 | status = acpi_evaluate_object(dev->acpi_dev->handle, "INFO", | |
958 | NULL, &buf); | |
959 | if (ACPI_FAILURE(status) || out_obj.type != ACPI_TYPE_INTEGER) { | |
960 | pr_err("ACPI INFO method execution failed\n"); | |
961 | return -EIO; | |
962 | } | |
963 | ||
964 | return out_obj.integer.value; | |
965 | } | |
966 | ||
967 | static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev, | |
968 | int scancode) | |
969 | { | |
970 | if (scancode == 0x100) | |
971 | return; | |
972 | ||
973 | /* act on key press; ignore key release */ | |
974 | if (scancode & 0x80) | |
975 | return; | |
976 | ||
977 | if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true)) | |
978 | pr_info("Unknown key %x\n", scancode); | |
979 | } | |
980 | ||
b859f159 | 981 | static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev) |
6335e4d5 MG |
982 | { |
983 | acpi_status status; | |
29cd293f | 984 | acpi_handle ec_handle, handle; |
384a7cd9 | 985 | int error; |
29cd293f | 986 | u32 hci_result; |
6335e4d5 | 987 | |
135740de SF |
988 | dev->hotkey_dev = input_allocate_device(); |
989 | if (!dev->hotkey_dev) { | |
7e33460d | 990 | pr_info("Unable to register input device\n"); |
6335e4d5 MG |
991 | return -ENOMEM; |
992 | } | |
993 | ||
135740de | 994 | dev->hotkey_dev->name = "Toshiba input device"; |
6e02cc7e | 995 | dev->hotkey_dev->phys = "toshiba_acpi/input0"; |
135740de | 996 | dev->hotkey_dev->id.bustype = BUS_HOST; |
6335e4d5 | 997 | |
135740de | 998 | error = sparse_keymap_setup(dev->hotkey_dev, toshiba_acpi_keymap, NULL); |
384a7cd9 DT |
999 | if (error) |
1000 | goto err_free_dev; | |
1001 | ||
29cd293f SF |
1002 | /* |
1003 | * For some machines the SCI responsible for providing hotkey | |
1004 | * notification doesn't fire. We can trigger the notification | |
1005 | * whenever the Fn key is pressed using the NTFY method, if | |
1006 | * supported, so if it's present set up an i8042 key filter | |
1007 | * for this purpose. | |
1008 | */ | |
1009 | status = AE_ERROR; | |
1010 | ec_handle = ec_get_handle(); | |
1011 | if (ec_handle) | |
1012 | status = acpi_get_handle(ec_handle, "NTFY", &handle); | |
1013 | ||
1014 | if (ACPI_SUCCESS(status)) { | |
1015 | INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work); | |
1016 | ||
1017 | error = i8042_install_filter(toshiba_acpi_i8042_filter); | |
1018 | if (error) { | |
1019 | pr_err("Error installing key filter\n"); | |
1020 | goto err_free_keymap; | |
1021 | } | |
1022 | ||
1023 | dev->ntfy_supported = 1; | |
1024 | } | |
1025 | ||
1026 | /* | |
1027 | * Determine hotkey query interface. Prefer using the INFO | |
1028 | * method when it is available. | |
1029 | */ | |
1030 | status = acpi_get_handle(dev->acpi_dev->handle, "INFO", &handle); | |
1031 | if (ACPI_SUCCESS(status)) { | |
1032 | dev->info_supported = 1; | |
1033 | } else { | |
1034 | hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result); | |
1035 | if (hci_result == HCI_SUCCESS) | |
1036 | dev->system_event_supported = 1; | |
1037 | } | |
1038 | ||
1039 | if (!dev->info_supported && !dev->system_event_supported) { | |
1040 | pr_warn("No hotkey query interface found\n"); | |
1041 | goto err_remove_filter; | |
1042 | } | |
1043 | ||
6e02cc7e | 1044 | status = acpi_evaluate_object(dev->acpi_dev->handle, "ENAB", NULL, NULL); |
384a7cd9 | 1045 | if (ACPI_FAILURE(status)) { |
7e33460d | 1046 | pr_info("Unable to enable hotkeys\n"); |
384a7cd9 | 1047 | error = -ENODEV; |
29cd293f | 1048 | goto err_remove_filter; |
6335e4d5 MG |
1049 | } |
1050 | ||
135740de | 1051 | error = input_register_device(dev->hotkey_dev); |
384a7cd9 | 1052 | if (error) { |
7e33460d | 1053 | pr_info("Unable to register input device\n"); |
29cd293f | 1054 | goto err_remove_filter; |
6335e4d5 MG |
1055 | } |
1056 | ||
29cd293f | 1057 | hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &hci_result); |
6335e4d5 | 1058 | return 0; |
384a7cd9 | 1059 | |
29cd293f SF |
1060 | err_remove_filter: |
1061 | if (dev->ntfy_supported) | |
1062 | i8042_remove_filter(toshiba_acpi_i8042_filter); | |
384a7cd9 | 1063 | err_free_keymap: |
135740de | 1064 | sparse_keymap_free(dev->hotkey_dev); |
384a7cd9 | 1065 | err_free_dev: |
135740de SF |
1066 | input_free_device(dev->hotkey_dev); |
1067 | dev->hotkey_dev = NULL; | |
384a7cd9 | 1068 | return error; |
6335e4d5 MG |
1069 | } |
1070 | ||
b859f159 | 1071 | static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev) |
62cce752 SF |
1072 | { |
1073 | struct backlight_properties props; | |
1074 | int brightness; | |
1075 | int ret; | |
121b7b0d | 1076 | bool enabled; |
62cce752 SF |
1077 | |
1078 | /* | |
1079 | * Some machines don't support the backlight methods at all, and | |
1080 | * others support it read-only. Either of these is pretty useless, | |
1081 | * so only register the backlight device if the backlight method | |
1082 | * supports both reads and writes. | |
1083 | */ | |
1084 | brightness = __get_lcd_brightness(dev); | |
1085 | if (brightness < 0) | |
1086 | return 0; | |
1087 | ret = set_lcd_brightness(dev, brightness); | |
1088 | if (ret) { | |
1089 | pr_debug("Backlight method is read-only, disabling backlight support\n"); | |
1090 | return 0; | |
1091 | } | |
1092 | ||
121b7b0d AI |
1093 | /* Determine whether or not BIOS supports transflective backlight */ |
1094 | ret = get_tr_backlight_status(dev, &enabled); | |
1095 | dev->tr_backlight_supported = !ret; | |
1096 | ||
53039f22 | 1097 | memset(&props, 0, sizeof(props)); |
62cce752 SF |
1098 | props.type = BACKLIGHT_PLATFORM; |
1099 | props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1; | |
62cce752 | 1100 | |
121b7b0d AI |
1101 | /* adding an extra level and having 0 change to transflective mode */ |
1102 | if (dev->tr_backlight_supported) | |
1103 | props.max_brightness++; | |
1104 | ||
62cce752 SF |
1105 | dev->backlight_dev = backlight_device_register("toshiba", |
1106 | &dev->acpi_dev->dev, | |
1107 | dev, | |
1108 | &toshiba_backlight_data, | |
1109 | &props); | |
1110 | if (IS_ERR(dev->backlight_dev)) { | |
1111 | ret = PTR_ERR(dev->backlight_dev); | |
1112 | pr_err("Could not register toshiba backlight device\n"); | |
1113 | dev->backlight_dev = NULL; | |
1114 | return ret; | |
1115 | } | |
1116 | ||
1117 | dev->backlight_dev->props.brightness = brightness; | |
1118 | return 0; | |
1119 | } | |
1120 | ||
51fac838 | 1121 | static int toshiba_acpi_remove(struct acpi_device *acpi_dev) |
c9263557 | 1122 | { |
135740de | 1123 | struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev); |
6335e4d5 | 1124 | |
36d03f93 | 1125 | remove_toshiba_proc_entries(dev); |
c41a40c5 | 1126 | |
29cd293f SF |
1127 | if (dev->ntfy_supported) { |
1128 | i8042_remove_filter(toshiba_acpi_i8042_filter); | |
1129 | cancel_work_sync(&dev->hotkey_work); | |
1130 | } | |
1131 | ||
135740de SF |
1132 | if (dev->hotkey_dev) { |
1133 | input_unregister_device(dev->hotkey_dev); | |
1134 | sparse_keymap_free(dev->hotkey_dev); | |
1135 | } | |
c9263557 | 1136 | |
135740de SF |
1137 | if (dev->bt_rfk) { |
1138 | rfkill_unregister(dev->bt_rfk); | |
1139 | rfkill_destroy(dev->bt_rfk); | |
1140 | } | |
c9263557 | 1141 | |
135740de SF |
1142 | if (dev->backlight_dev) |
1143 | backlight_device_unregister(dev->backlight_dev); | |
c9263557 | 1144 | |
36d03f93 | 1145 | if (dev->illumination_supported) |
135740de | 1146 | led_classdev_unregister(&dev->led_dev); |
6c3f6e6c | 1147 | |
29cd293f SF |
1148 | if (toshiba_acpi) |
1149 | toshiba_acpi = NULL; | |
1150 | ||
135740de | 1151 | kfree(dev); |
c41a40c5 | 1152 | |
135740de | 1153 | return 0; |
c9263557 HM |
1154 | } |
1155 | ||
b859f159 | 1156 | static const char *find_hci_method(acpi_handle handle) |
a540d6b5 SF |
1157 | { |
1158 | acpi_status status; | |
1159 | acpi_handle hci_handle; | |
1160 | ||
1161 | status = acpi_get_handle(handle, "GHCI", &hci_handle); | |
1162 | if (ACPI_SUCCESS(status)) | |
1163 | return "GHCI"; | |
1164 | ||
1165 | status = acpi_get_handle(handle, "SPFC", &hci_handle); | |
1166 | if (ACPI_SUCCESS(status)) | |
1167 | return "SPFC"; | |
1168 | ||
1169 | return NULL; | |
1170 | } | |
1171 | ||
b859f159 | 1172 | static int toshiba_acpi_add(struct acpi_device *acpi_dev) |
1da177e4 | 1173 | { |
135740de | 1174 | struct toshiba_acpi_dev *dev; |
a540d6b5 | 1175 | const char *hci_method; |
36d03f93 | 1176 | u32 dummy; |
c41a40c5 | 1177 | bool bt_present; |
c41a40c5 | 1178 | int ret = 0; |
1da177e4 | 1179 | |
29cd293f SF |
1180 | if (toshiba_acpi) |
1181 | return -EBUSY; | |
1182 | ||
135740de SF |
1183 | pr_info("Toshiba Laptop ACPI Extras version %s\n", |
1184 | TOSHIBA_ACPI_VERSION); | |
1185 | ||
a540d6b5 SF |
1186 | hci_method = find_hci_method(acpi_dev->handle); |
1187 | if (!hci_method) { | |
1188 | pr_err("HCI interface not found\n"); | |
6e02cc7e | 1189 | return -ENODEV; |
a540d6b5 | 1190 | } |
6e02cc7e | 1191 | |
135740de SF |
1192 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
1193 | if (!dev) | |
1194 | return -ENOMEM; | |
1195 | dev->acpi_dev = acpi_dev; | |
a540d6b5 | 1196 | dev->method_hci = hci_method; |
135740de | 1197 | acpi_dev->driver_data = dev; |
fb9802fa | 1198 | |
6e02cc7e SF |
1199 | if (toshiba_acpi_setup_keyboard(dev)) |
1200 | pr_info("Unable to activate hotkeys\n"); | |
135740de SF |
1201 | |
1202 | mutex_init(&dev->mutex); | |
1da177e4 | 1203 | |
62cce752 SF |
1204 | ret = toshiba_acpi_setup_backlight(dev); |
1205 | if (ret) | |
135740de | 1206 | goto error; |
1da177e4 | 1207 | |
c41a40c5 | 1208 | /* Register rfkill switch for Bluetooth */ |
135740de SF |
1209 | if (hci_get_bt_present(dev, &bt_present) == HCI_SUCCESS && bt_present) { |
1210 | dev->bt_rfk = rfkill_alloc("Toshiba Bluetooth", | |
1211 | &acpi_dev->dev, | |
1212 | RFKILL_TYPE_BLUETOOTH, | |
1213 | &toshiba_rfk_ops, | |
1214 | dev); | |
1215 | if (!dev->bt_rfk) { | |
7e33460d | 1216 | pr_err("unable to allocate rfkill device\n"); |
135740de SF |
1217 | ret = -ENOMEM; |
1218 | goto error; | |
c41a40c5 | 1219 | } |
1220 | ||
135740de | 1221 | ret = rfkill_register(dev->bt_rfk); |
c41a40c5 | 1222 | if (ret) { |
7e33460d | 1223 | pr_err("unable to register rfkill device\n"); |
135740de SF |
1224 | rfkill_destroy(dev->bt_rfk); |
1225 | goto error; | |
38aefbc5 | 1226 | } |
c41a40c5 | 1227 | } |
1228 | ||
135740de SF |
1229 | if (toshiba_illumination_available(dev)) { |
1230 | dev->led_dev.name = "toshiba::illumination"; | |
1231 | dev->led_dev.max_brightness = 1; | |
1232 | dev->led_dev.brightness_set = toshiba_illumination_set; | |
1233 | dev->led_dev.brightness_get = toshiba_illumination_get; | |
1234 | if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev)) | |
36d03f93 | 1235 | dev->illumination_supported = 1; |
6c3f6e6c PD |
1236 | } |
1237 | ||
36d03f93 SF |
1238 | /* Determine whether or not BIOS supports fan and video interfaces */ |
1239 | ||
1240 | ret = get_video_status(dev, &dummy); | |
1241 | dev->video_supported = !ret; | |
1242 | ||
1243 | ret = get_fan_status(dev, &dummy); | |
1244 | dev->fan_supported = !ret; | |
1245 | ||
1246 | create_toshiba_proc_entries(dev); | |
1247 | ||
29cd293f SF |
1248 | toshiba_acpi = dev; |
1249 | ||
c41a40c5 | 1250 | return 0; |
135740de SF |
1251 | |
1252 | error: | |
51fac838 | 1253 | toshiba_acpi_remove(acpi_dev); |
135740de SF |
1254 | return ret; |
1255 | } | |
1256 | ||
1257 | static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event) | |
1258 | { | |
1259 | struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev); | |
1260 | u32 hci_result, value; | |
11948b93 | 1261 | int retries = 3; |
29cd293f | 1262 | int scancode; |
135740de | 1263 | |
29cd293f | 1264 | if (event != 0x80) |
135740de | 1265 | return; |
11948b93 | 1266 | |
29cd293f SF |
1267 | if (dev->info_supported) { |
1268 | scancode = toshiba_acpi_query_hotkey(dev); | |
1269 | if (scancode < 0) | |
1270 | pr_err("Failed to query hotkey event\n"); | |
1271 | else if (scancode != 0) | |
1272 | toshiba_acpi_report_hotkey(dev, scancode); | |
1273 | } else if (dev->system_event_supported) { | |
1274 | do { | |
1275 | hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result); | |
1276 | switch (hci_result) { | |
1277 | case HCI_SUCCESS: | |
1278 | toshiba_acpi_report_hotkey(dev, (int)value); | |
1279 | break; | |
1280 | case HCI_NOT_SUPPORTED: | |
1281 | /* | |
1282 | * This is a workaround for an unresolved | |
1283 | * issue on some machines where system events | |
1284 | * sporadically become disabled. | |
1285 | */ | |
1286 | hci_write1(dev, HCI_SYSTEM_EVENT, 1, | |
1287 | &hci_result); | |
1288 | pr_notice("Re-enabled hotkeys\n"); | |
1289 | /* fall through */ | |
1290 | default: | |
1291 | retries--; | |
1292 | break; | |
135740de | 1293 | } |
29cd293f SF |
1294 | } while (retries && hci_result != HCI_EMPTY); |
1295 | } | |
135740de SF |
1296 | } |
1297 | ||
3567a4e2 | 1298 | #ifdef CONFIG_PM_SLEEP |
43d2fd3b | 1299 | static int toshiba_acpi_suspend(struct device *device) |
29cd293f | 1300 | { |
43d2fd3b | 1301 | struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device)); |
29cd293f SF |
1302 | u32 result; |
1303 | ||
1304 | if (dev->hotkey_dev) | |
1305 | hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE, &result); | |
1306 | ||
1307 | return 0; | |
1308 | } | |
1309 | ||
43d2fd3b | 1310 | static int toshiba_acpi_resume(struct device *device) |
29cd293f | 1311 | { |
43d2fd3b | 1312 | struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device)); |
29cd293f SF |
1313 | u32 result; |
1314 | ||
1315 | if (dev->hotkey_dev) | |
1316 | hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &result); | |
1317 | ||
1318 | return 0; | |
1319 | } | |
3567a4e2 | 1320 | #endif |
135740de | 1321 | |
43d2fd3b RW |
1322 | static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm, |
1323 | toshiba_acpi_suspend, toshiba_acpi_resume); | |
1324 | ||
135740de SF |
1325 | static struct acpi_driver toshiba_acpi_driver = { |
1326 | .name = "Toshiba ACPI driver", | |
1327 | .owner = THIS_MODULE, | |
1328 | .ids = toshiba_device_ids, | |
1329 | .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, | |
1330 | .ops = { | |
1331 | .add = toshiba_acpi_add, | |
1332 | .remove = toshiba_acpi_remove, | |
1333 | .notify = toshiba_acpi_notify, | |
1334 | }, | |
43d2fd3b | 1335 | .drv.pm = &toshiba_acpi_pm, |
135740de SF |
1336 | }; |
1337 | ||
1338 | static int __init toshiba_acpi_init(void) | |
1339 | { | |
1340 | int ret; | |
1341 | ||
f11f999e SF |
1342 | /* |
1343 | * Machines with this WMI guid aren't supported due to bugs in | |
1344 | * their AML. This check relies on wmi initializing before | |
1345 | * toshiba_acpi to guarantee guids have been identified. | |
1346 | */ | |
1347 | if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) | |
1348 | return -ENODEV; | |
1349 | ||
135740de SF |
1350 | toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir); |
1351 | if (!toshiba_proc_dir) { | |
1352 | pr_err("Unable to create proc dir " PROC_TOSHIBA "\n"); | |
1353 | return -ENODEV; | |
1354 | } | |
1355 | ||
1356 | ret = acpi_bus_register_driver(&toshiba_acpi_driver); | |
1357 | if (ret) { | |
1358 | pr_err("Failed to register ACPI driver: %d\n", ret); | |
1359 | remove_proc_entry(PROC_TOSHIBA, acpi_root_dir); | |
1360 | } | |
1361 | ||
1362 | return ret; | |
1363 | } | |
1364 | ||
1365 | static void __exit toshiba_acpi_exit(void) | |
1366 | { | |
1367 | acpi_bus_unregister_driver(&toshiba_acpi_driver); | |
1368 | if (toshiba_proc_dir) | |
1369 | remove_proc_entry(PROC_TOSHIBA, acpi_root_dir); | |
1da177e4 LT |
1370 | } |
1371 | ||
1372 | module_init(toshiba_acpi_init); | |
1373 | module_exit(toshiba_acpi_exit); |