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-rw-r--r--drivers/misc/fujitsu-laptop.c1293
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diff --git a/drivers/misc/fujitsu-laptop.c b/drivers/misc/fujitsu-laptop.c
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--- a/drivers/misc/fujitsu-laptop.c
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1/*-*-linux-c-*-*/
2
3/*
4 Copyright (C) 2007,2008 Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
5 Copyright (C) 2008 Peter Gruber <nokos@gmx.net>
6 Copyright (C) 2008 Tony Vroon <tony@linx.net>
7 Based on earlier work:
8 Copyright (C) 2003 Shane Spencer <shane@bogomip.com>
9 Adrian Yee <brewt-fujitsu@brewt.org>
10
11 Templated from msi-laptop.c and thinkpad_acpi.c which is copyright
12 by its respective authors.
13
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 2 of the License, or
17 (at your option) any later version.
18
19 This program is distributed in the hope that it will be useful, but
20 WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 General Public License for more details.
23
24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
26 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
27 02110-1301, USA.
28 */
29
30/*
31 * fujitsu-laptop.c - Fujitsu laptop support, providing access to additional
32 * features made available on a range of Fujitsu laptops including the
33 * P2xxx/P5xxx/S6xxx/S7xxx series.
34 *
35 * This driver exports a few files in /sys/devices/platform/fujitsu-laptop/;
36 * others may be added at a later date.
37 *
38 * lcd_level - Screen brightness: contains a single integer in the
39 * range 0..7. (rw)
40 *
41 * In addition to these platform device attributes the driver
42 * registers itself in the Linux backlight control subsystem and is
43 * available to userspace under /sys/class/backlight/fujitsu-laptop/.
44 *
45 * Hotkeys present on certain Fujitsu laptops (eg: the S6xxx series) are
46 * also supported by this driver.
47 *
48 * This driver has been tested on a Fujitsu Lifebook S6410, S7020 and
49 * P8010. It should work on most P-series and S-series Lifebooks, but
50 * YMMV.
51 *
52 * The module parameter use_alt_lcd_levels switches between different ACPI
53 * brightness controls which are used by different Fujitsu laptops. In most
54 * cases the correct method is automatically detected. "use_alt_lcd_levels=1"
55 * is applicable for a Fujitsu Lifebook S6410 if autodetection fails.
56 *
57 */
58
59#include <linux/module.h>
60#include <linux/kernel.h>
61#include <linux/init.h>
62#include <linux/acpi.h>
63#include <linux/dmi.h>
64#include <linux/backlight.h>
65#include <linux/input.h>
66#include <linux/kfifo.h>
67#include <linux/video_output.h>
68#include <linux/platform_device.h>
69#ifdef CONFIG_LEDS_CLASS
70#include <linux/leds.h>
71#endif
72
73#define FUJITSU_DRIVER_VERSION "0.5.0"
74
75#define FUJITSU_LCD_N_LEVELS 8
76
77#define ACPI_FUJITSU_CLASS "fujitsu"
78#define ACPI_FUJITSU_HID "FUJ02B1"
79#define ACPI_FUJITSU_DRIVER_NAME "Fujitsu laptop FUJ02B1 ACPI brightness driver"
80#define ACPI_FUJITSU_DEVICE_NAME "Fujitsu FUJ02B1"
81#define ACPI_FUJITSU_HOTKEY_HID "FUJ02E3"
82#define ACPI_FUJITSU_HOTKEY_DRIVER_NAME "Fujitsu laptop FUJ02E3 ACPI hotkeys driver"
83#define ACPI_FUJITSU_HOTKEY_DEVICE_NAME "Fujitsu FUJ02E3"
84
85#define ACPI_FUJITSU_NOTIFY_CODE1 0x80
86
87#define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x86
88#define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87
89
90/* FUNC interface - command values */
91#define FUNC_RFKILL 0x1000
92#define FUNC_LEDS 0x1001
93#define FUNC_BUTTONS 0x1002
94#define FUNC_BACKLIGHT 0x1004
95
96/* FUNC interface - responses */
97#define UNSUPPORTED_CMD 0x80000000
98
99#ifdef CONFIG_LEDS_CLASS
100/* FUNC interface - LED control */
101#define FUNC_LED_OFF 0x1
102#define FUNC_LED_ON 0x30001
103#define KEYBOARD_LAMPS 0x100
104#define LOGOLAMP_POWERON 0x2000
105#define LOGOLAMP_ALWAYS 0x4000
106#endif
107
108/* Hotkey details */
109#define KEY1_CODE 0x410 /* codes for the keys in the GIRB register */
110#define KEY2_CODE 0x411
111#define KEY3_CODE 0x412
112#define KEY4_CODE 0x413
113
114#define MAX_HOTKEY_RINGBUFFER_SIZE 100
115#define RINGBUFFERSIZE 40
116
117/* Debugging */
118#define FUJLAPTOP_LOG ACPI_FUJITSU_HID ": "
119#define FUJLAPTOP_ERR KERN_ERR FUJLAPTOP_LOG
120#define FUJLAPTOP_NOTICE KERN_NOTICE FUJLAPTOP_LOG
121#define FUJLAPTOP_INFO KERN_INFO FUJLAPTOP_LOG
122#define FUJLAPTOP_DEBUG KERN_DEBUG FUJLAPTOP_LOG
123
124#define FUJLAPTOP_DBG_ALL 0xffff
125#define FUJLAPTOP_DBG_ERROR 0x0001
126#define FUJLAPTOP_DBG_WARN 0x0002
127#define FUJLAPTOP_DBG_INFO 0x0004
128#define FUJLAPTOP_DBG_TRACE 0x0008
129
130#define dbg_printk(a_dbg_level, format, arg...) \
131 do { if (dbg_level & a_dbg_level) \
132 printk(FUJLAPTOP_DEBUG "%s: " format, __func__ , ## arg); \
133 } while (0)
134#ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
135#define vdbg_printk(a_dbg_level, format, arg...) \
136 dbg_printk(a_dbg_level, format, ## arg)
137#else
138#define vdbg_printk(a_dbg_level, format, arg...)
139#endif
140
141/* Device controlling the backlight and associated keys */
142struct fujitsu_t {
143 acpi_handle acpi_handle;
144 struct acpi_device *dev;
145 struct input_dev *input;
146 char phys[32];
147 struct backlight_device *bl_device;
148 struct platform_device *pf_device;
149 int keycode1, keycode2, keycode3, keycode4;
150
151 unsigned int max_brightness;
152 unsigned int brightness_changed;
153 unsigned int brightness_level;
154};
155
156static struct fujitsu_t *fujitsu;
157static int use_alt_lcd_levels = -1;
158static int disable_brightness_adjust = -1;
159
160/* Device used to access other hotkeys on the laptop */
161struct fujitsu_hotkey_t {
162 acpi_handle acpi_handle;
163 struct acpi_device *dev;
164 struct input_dev *input;
165 char phys[32];
166 struct platform_device *pf_device;
167 struct kfifo *fifo;
168 spinlock_t fifo_lock;
169 int rfkill_state;
170 int logolamp_registered;
171 int kblamps_registered;
172};
173
174static struct fujitsu_hotkey_t *fujitsu_hotkey;
175
176static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event,
177 void *data);
178
179#ifdef CONFIG_LEDS_CLASS
180static enum led_brightness logolamp_get(struct led_classdev *cdev);
181static void logolamp_set(struct led_classdev *cdev,
182 enum led_brightness brightness);
183
184struct led_classdev logolamp_led = {
185 .name = "fujitsu::logolamp",
186 .brightness_get = logolamp_get,
187 .brightness_set = logolamp_set
188};
189
190static enum led_brightness kblamps_get(struct led_classdev *cdev);
191static void kblamps_set(struct led_classdev *cdev,
192 enum led_brightness brightness);
193
194struct led_classdev kblamps_led = {
195 .name = "fujitsu::kblamps",
196 .brightness_get = kblamps_get,
197 .brightness_set = kblamps_set
198};
199#endif
200
201#ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
202static u32 dbg_level = 0x03;
203#endif
204
205static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data);
206
207/* Fujitsu ACPI interface function */
208
209static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
210{
211 acpi_status status = AE_OK;
212 union acpi_object params[4] = {
213 { .type = ACPI_TYPE_INTEGER },
214 { .type = ACPI_TYPE_INTEGER },
215 { .type = ACPI_TYPE_INTEGER },
216 { .type = ACPI_TYPE_INTEGER }
217 };
218 struct acpi_object_list arg_list = { 4, &params[0] };
219 struct acpi_buffer output;
220 union acpi_object out_obj;
221 acpi_handle handle = NULL;
222
223 status = acpi_get_handle(fujitsu_hotkey->acpi_handle, "FUNC", &handle);
224 if (ACPI_FAILURE(status)) {
225 vdbg_printk(FUJLAPTOP_DBG_ERROR,
226 "FUNC interface is not present\n");
227 return -ENODEV;
228 }
229
230 params[0].integer.value = cmd;
231 params[1].integer.value = arg0;
232 params[2].integer.value = arg1;
233 params[3].integer.value = arg2;
234
235 output.length = sizeof(out_obj);
236 output.pointer = &out_obj;
237
238 status = acpi_evaluate_object(handle, NULL, &arg_list, &output);
239 if (ACPI_FAILURE(status)) {
240 vdbg_printk(FUJLAPTOP_DBG_WARN,
241 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) call failed\n",
242 cmd, arg0, arg1, arg2);
243 return -ENODEV;
244 }
245
246 if (out_obj.type != ACPI_TYPE_INTEGER) {
247 vdbg_printk(FUJLAPTOP_DBG_WARN,
248 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) did not "
249 "return an integer\n",
250 cmd, arg0, arg1, arg2);
251 return -ENODEV;
252 }
253
254 vdbg_printk(FUJLAPTOP_DBG_TRACE,
255 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n",
256 cmd, arg0, arg1, arg2, (int)out_obj.integer.value);
257 return out_obj.integer.value;
258}
259
260#ifdef CONFIG_LEDS_CLASS
261/* LED class callbacks */
262
263static void logolamp_set(struct led_classdev *cdev,
264 enum led_brightness brightness)
265{
266 if (brightness >= LED_FULL) {
267 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
268 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_ON);
269 } else if (brightness >= LED_HALF) {
270 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
271 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_OFF);
272 } else {
273 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_OFF);
274 }
275}
276
277static void kblamps_set(struct led_classdev *cdev,
278 enum led_brightness brightness)
279{
280 if (brightness >= LED_FULL)
281 call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_ON);
282 else
283 call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_OFF);
284}
285
286static enum led_brightness logolamp_get(struct led_classdev *cdev)
287{
288 enum led_brightness brightness = LED_OFF;
289 int poweron, always;
290
291 poweron = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_POWERON, 0x0);
292 if (poweron == FUNC_LED_ON) {
293 brightness = LED_HALF;
294 always = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_ALWAYS, 0x0);
295 if (always == FUNC_LED_ON)
296 brightness = LED_FULL;
297 }
298 return brightness;
299}
300
301static enum led_brightness kblamps_get(struct led_classdev *cdev)
302{
303 enum led_brightness brightness = LED_OFF;
304
305 if (call_fext_func(FUNC_LEDS, 0x2, KEYBOARD_LAMPS, 0x0) == FUNC_LED_ON)
306 brightness = LED_FULL;
307
308 return brightness;
309}
310#endif
311
312/* Hardware access for LCD brightness control */
313
314static int set_lcd_level(int level)
315{
316 acpi_status status = AE_OK;
317 union acpi_object arg0 = { ACPI_TYPE_INTEGER };
318 struct acpi_object_list arg_list = { 1, &arg0 };
319 acpi_handle handle = NULL;
320
321 vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBLL [%d]\n",
322 level);
323
324 if (level < 0 || level >= fujitsu->max_brightness)
325 return -EINVAL;
326
327 if (!fujitsu)
328 return -EINVAL;
329
330 status = acpi_get_handle(fujitsu->acpi_handle, "SBLL", &handle);
331 if (ACPI_FAILURE(status)) {
332 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBLL not present\n");
333 return -ENODEV;
334 }
335
336 arg0.integer.value = level;
337
338 status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
339 if (ACPI_FAILURE(status))
340 return -ENODEV;
341
342 return 0;
343}
344
345static int set_lcd_level_alt(int level)
346{
347 acpi_status status = AE_OK;
348 union acpi_object arg0 = { ACPI_TYPE_INTEGER };
349 struct acpi_object_list arg_list = { 1, &arg0 };
350 acpi_handle handle = NULL;
351
352 vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBL2 [%d]\n",
353 level);
354
355 if (level < 0 || level >= fujitsu->max_brightness)
356 return -EINVAL;
357
358 if (!fujitsu)
359 return -EINVAL;
360
361 status = acpi_get_handle(fujitsu->acpi_handle, "SBL2", &handle);
362 if (ACPI_FAILURE(status)) {
363 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBL2 not present\n");
364 return -ENODEV;
365 }
366
367 arg0.integer.value = level;
368
369 status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
370 if (ACPI_FAILURE(status))
371 return -ENODEV;
372
373 return 0;
374}
375
376static int get_lcd_level(void)
377{
378 unsigned long long state = 0;
379 acpi_status status = AE_OK;
380
381 vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLL\n");
382
383 status =
384 acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state);
385 if (status < 0)
386 return status;
387
388 fujitsu->brightness_level = state & 0x0fffffff;
389
390 if (state & 0x80000000)
391 fujitsu->brightness_changed = 1;
392 else
393 fujitsu->brightness_changed = 0;
394
395 return fujitsu->brightness_level;
396}
397
398static int get_max_brightness(void)
399{
400 unsigned long long state = 0;
401 acpi_status status = AE_OK;
402
403 vdbg_printk(FUJLAPTOP_DBG_TRACE, "get max lcd level via RBLL\n");
404
405 status =
406 acpi_evaluate_integer(fujitsu->acpi_handle, "RBLL", NULL, &state);
407 if (status < 0)
408 return status;
409
410 fujitsu->max_brightness = state;
411
412 return fujitsu->max_brightness;
413}
414
415/* Backlight device stuff */
416
417static int bl_get_brightness(struct backlight_device *b)
418{
419 return get_lcd_level();
420}
421
422static int bl_update_status(struct backlight_device *b)
423{
424 int ret;
425 if (b->props.power == 4)
426 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
427 else
428 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x0);
429 if (ret != 0)
430 vdbg_printk(FUJLAPTOP_DBG_ERROR,
431 "Unable to adjust backlight power, error code %i\n",
432 ret);
433
434 if (use_alt_lcd_levels)
435 ret = set_lcd_level_alt(b->props.brightness);
436 else
437 ret = set_lcd_level(b->props.brightness);
438 if (ret != 0)
439 vdbg_printk(FUJLAPTOP_DBG_ERROR,
440 "Unable to adjust LCD brightness, error code %i\n",
441 ret);
442 return ret;
443}
444
445static struct backlight_ops fujitsubl_ops = {
446 .get_brightness = bl_get_brightness,
447 .update_status = bl_update_status,
448};
449
450/* Platform LCD brightness device */
451
452static ssize_t
453show_max_brightness(struct device *dev,
454 struct device_attribute *attr, char *buf)
455{
456
457 int ret;
458
459 ret = get_max_brightness();
460 if (ret < 0)
461 return ret;
462
463 return sprintf(buf, "%i\n", ret);
464}
465
466static ssize_t
467show_brightness_changed(struct device *dev,
468 struct device_attribute *attr, char *buf)
469{
470
471 int ret;
472
473 ret = fujitsu->brightness_changed;
474 if (ret < 0)
475 return ret;
476
477 return sprintf(buf, "%i\n", ret);
478}
479
480static ssize_t show_lcd_level(struct device *dev,
481 struct device_attribute *attr, char *buf)
482{
483
484 int ret;
485
486 ret = get_lcd_level();
487 if (ret < 0)
488 return ret;
489
490 return sprintf(buf, "%i\n", ret);
491}
492
493static ssize_t store_lcd_level(struct device *dev,
494 struct device_attribute *attr, const char *buf,
495 size_t count)
496{
497
498 int level, ret;
499
500 if (sscanf(buf, "%i", &level) != 1
501 || (level < 0 || level >= fujitsu->max_brightness))
502 return -EINVAL;
503
504 if (use_alt_lcd_levels)
505 ret = set_lcd_level_alt(level);
506 else
507 ret = set_lcd_level(level);
508 if (ret < 0)
509 return ret;
510
511 ret = get_lcd_level();
512 if (ret < 0)
513 return ret;
514
515 return count;
516}
517
518static ssize_t
519ignore_store(struct device *dev,
520 struct device_attribute *attr, const char *buf, size_t count)
521{
522 return count;
523}
524
525static ssize_t
526show_lid_state(struct device *dev,
527 struct device_attribute *attr, char *buf)
528{
529 if (fujitsu_hotkey->rfkill_state == UNSUPPORTED_CMD)
530 return sprintf(buf, "unknown\n");
531 if (fujitsu_hotkey->rfkill_state & 0x100)
532 return sprintf(buf, "open\n");
533 else
534 return sprintf(buf, "closed\n");
535}
536
537static ssize_t
538show_dock_state(struct device *dev,
539 struct device_attribute *attr, char *buf)
540{
541 if (fujitsu_hotkey->rfkill_state == UNSUPPORTED_CMD)
542 return sprintf(buf, "unknown\n");
543 if (fujitsu_hotkey->rfkill_state & 0x200)
544 return sprintf(buf, "docked\n");
545 else
546 return sprintf(buf, "undocked\n");
547}
548
549static ssize_t
550show_radios_state(struct device *dev,
551 struct device_attribute *attr, char *buf)
552{
553 if (fujitsu_hotkey->rfkill_state == UNSUPPORTED_CMD)
554 return sprintf(buf, "unknown\n");
555 if (fujitsu_hotkey->rfkill_state & 0x20)
556 return sprintf(buf, "on\n");
557 else
558 return sprintf(buf, "killed\n");
559}
560
561static DEVICE_ATTR(max_brightness, 0444, show_max_brightness, ignore_store);
562static DEVICE_ATTR(brightness_changed, 0444, show_brightness_changed,
563 ignore_store);
564static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
565static DEVICE_ATTR(lid, 0444, show_lid_state, ignore_store);
566static DEVICE_ATTR(dock, 0444, show_dock_state, ignore_store);
567static DEVICE_ATTR(radios, 0444, show_radios_state, ignore_store);
568
569static struct attribute *fujitsupf_attributes[] = {
570 &dev_attr_brightness_changed.attr,
571 &dev_attr_max_brightness.attr,
572 &dev_attr_lcd_level.attr,
573 &dev_attr_lid.attr,
574 &dev_attr_dock.attr,
575 &dev_attr_radios.attr,
576 NULL
577};
578
579static struct attribute_group fujitsupf_attribute_group = {
580 .attrs = fujitsupf_attributes
581};
582
583static struct platform_driver fujitsupf_driver = {
584 .driver = {
585 .name = "fujitsu-laptop",
586 .owner = THIS_MODULE,
587 }
588};
589
590static void dmi_check_cb_common(const struct dmi_system_id *id)
591{
592 acpi_handle handle;
593 printk(KERN_INFO "fujitsu-laptop: Identified laptop model '%s'.\n",
594 id->ident);
595 if (use_alt_lcd_levels == -1) {
596 if (ACPI_SUCCESS(acpi_get_handle(NULL,
597 "\\_SB.PCI0.LPCB.FJEX.SBL2", &handle)))
598 use_alt_lcd_levels = 1;
599 else
600 use_alt_lcd_levels = 0;
601 vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detected usealt as "
602 "%i\n", use_alt_lcd_levels);
603 }
604}
605
606static int dmi_check_cb_s6410(const struct dmi_system_id *id)
607{
608 dmi_check_cb_common(id);
609 fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */
610 fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */
611 return 0;
612}
613
614static int dmi_check_cb_s6420(const struct dmi_system_id *id)
615{
616 dmi_check_cb_common(id);
617 fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */
618 fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */
619 return 0;
620}
621
622static int dmi_check_cb_p8010(const struct dmi_system_id *id)
623{
624 dmi_check_cb_common(id);
625 fujitsu->keycode1 = KEY_HELP; /* "Support" */
626 fujitsu->keycode3 = KEY_SWITCHVIDEOMODE; /* "Presentation" */
627 fujitsu->keycode4 = KEY_WWW; /* "Internet" */
628 return 0;
629}
630
631static struct dmi_system_id fujitsu_dmi_table[] = {
632 {
633 .ident = "Fujitsu Siemens S6410",
634 .matches = {
635 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
636 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6410"),
637 },
638 .callback = dmi_check_cb_s6410},
639 {
640 .ident = "Fujitsu Siemens S6420",
641 .matches = {
642 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
643 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6420"),
644 },
645 .callback = dmi_check_cb_s6420},
646 {
647 .ident = "Fujitsu LifeBook P8010",
648 .matches = {
649 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
650 DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P8010"),
651 },
652 .callback = dmi_check_cb_p8010},
653 {}
654};
655
656/* ACPI device for LCD brightness control */
657
658static int acpi_fujitsu_add(struct acpi_device *device)
659{
660 acpi_status status;
661 acpi_handle handle;
662 int result = 0;
663 int state = 0;
664 struct input_dev *input;
665 int error;
666
667 if (!device)
668 return -EINVAL;
669
670 fujitsu->acpi_handle = device->handle;
671 sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_DEVICE_NAME);
672 sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
673 device->driver_data = fujitsu;
674
675 status = acpi_install_notify_handler(device->handle,
676 ACPI_DEVICE_NOTIFY,
677 acpi_fujitsu_notify, fujitsu);
678
679 if (ACPI_FAILURE(status)) {
680 printk(KERN_ERR "Error installing notify handler\n");
681 error = -ENODEV;
682 goto err_stop;
683 }
684
685 fujitsu->input = input = input_allocate_device();
686 if (!input) {
687 error = -ENOMEM;
688 goto err_uninstall_notify;
689 }
690
691 snprintf(fujitsu->phys, sizeof(fujitsu->phys),
692 "%s/video/input0", acpi_device_hid(device));
693
694 input->name = acpi_device_name(device);
695 input->phys = fujitsu->phys;
696 input->id.bustype = BUS_HOST;
697 input->id.product = 0x06;
698 input->dev.parent = &device->dev;
699 input->evbit[0] = BIT(EV_KEY);
700 set_bit(KEY_BRIGHTNESSUP, input->keybit);
701 set_bit(KEY_BRIGHTNESSDOWN, input->keybit);
702 set_bit(KEY_UNKNOWN, input->keybit);
703
704 error = input_register_device(input);
705 if (error)
706 goto err_free_input_dev;
707
708 result = acpi_bus_get_power(fujitsu->acpi_handle, &state);
709 if (result) {
710 printk(KERN_ERR "Error reading power state\n");
711 goto end;
712 }
713
714 printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
715 acpi_device_name(device), acpi_device_bid(device),
716 !device->power.state ? "on" : "off");
717
718 fujitsu->dev = device;
719
720 if (ACPI_SUCCESS
721 (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
722 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
723 if (ACPI_FAILURE
724 (acpi_evaluate_object
725 (device->handle, METHOD_NAME__INI, NULL, NULL)))
726 printk(KERN_ERR "_INI Method failed\n");
727 }
728
729 /* do config (detect defaults) */
730 use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0;
731 disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0;
732 vdbg_printk(FUJLAPTOP_DBG_INFO,
733 "config: [alt interface: %d], [adjust disable: %d]\n",
734 use_alt_lcd_levels, disable_brightness_adjust);
735
736 if (get_max_brightness() <= 0)
737 fujitsu->max_brightness = FUJITSU_LCD_N_LEVELS;
738 get_lcd_level();
739
740 return result;
741
742end:
743err_free_input_dev:
744 input_free_device(input);
745err_uninstall_notify:
746 acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
747 acpi_fujitsu_notify);
748err_stop:
749
750 return result;
751}
752
753static int acpi_fujitsu_remove(struct acpi_device *device, int type)
754{
755 acpi_status status;
756 struct fujitsu_t *fujitsu = NULL;
757
758 if (!device || !acpi_driver_data(device))
759 return -EINVAL;
760
761 fujitsu = acpi_driver_data(device);
762
763 status = acpi_remove_notify_handler(fujitsu->acpi_handle,
764 ACPI_DEVICE_NOTIFY,
765 acpi_fujitsu_notify);
766
767 if (!device || !acpi_driver_data(device))
768 return -EINVAL;
769
770 fujitsu->acpi_handle = NULL;
771
772 return 0;
773}
774
775/* Brightness notify */
776
777static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data)
778{
779 struct input_dev *input;
780 int keycode;
781 int oldb, newb;
782
783 input = fujitsu->input;
784
785 switch (event) {
786 case ACPI_FUJITSU_NOTIFY_CODE1:
787 keycode = 0;
788 oldb = fujitsu->brightness_level;
789 get_lcd_level();
790 newb = fujitsu->brightness_level;
791
792 vdbg_printk(FUJLAPTOP_DBG_TRACE,
793 "brightness button event [%i -> %i (%i)]\n",
794 oldb, newb, fujitsu->brightness_changed);
795
796 if (oldb < newb) {
797 if (disable_brightness_adjust != 1) {
798 if (use_alt_lcd_levels)
799 set_lcd_level_alt(newb);
800 else
801 set_lcd_level(newb);
802 }
803 acpi_bus_generate_proc_event(fujitsu->dev,
804 ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS, 0);
805 keycode = KEY_BRIGHTNESSUP;
806 } else if (oldb > newb) {
807 if (disable_brightness_adjust != 1) {
808 if (use_alt_lcd_levels)
809 set_lcd_level_alt(newb);
810 else
811 set_lcd_level(newb);
812 }
813 acpi_bus_generate_proc_event(fujitsu->dev,
814 ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, 0);
815 keycode = KEY_BRIGHTNESSDOWN;
816 }
817 break;
818 default:
819 keycode = KEY_UNKNOWN;
820 vdbg_printk(FUJLAPTOP_DBG_WARN,
821 "unsupported event [0x%x]\n", event);
822 break;
823 }
824
825 if (keycode != 0) {
826 input_report_key(input, keycode, 1);
827 input_sync(input);
828 input_report_key(input, keycode, 0);
829 input_sync(input);
830 }
831
832 return;
833}
834
835/* ACPI device for hotkey handling */
836
837static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
838{
839 acpi_status status;
840 acpi_handle handle;
841 int result = 0;
842 int state = 0;
843 struct input_dev *input;
844 int error;
845 int i;
846
847 if (!device)
848 return -EINVAL;
849
850 fujitsu_hotkey->acpi_handle = device->handle;
851 sprintf(acpi_device_name(device), "%s",
852 ACPI_FUJITSU_HOTKEY_DEVICE_NAME);
853 sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
854 device->driver_data = fujitsu_hotkey;
855
856 status = acpi_install_notify_handler(device->handle,
857 ACPI_DEVICE_NOTIFY,
858 acpi_fujitsu_hotkey_notify,
859 fujitsu_hotkey);
860
861 if (ACPI_FAILURE(status)) {
862 printk(KERN_ERR "Error installing notify handler\n");
863 error = -ENODEV;
864 goto err_stop;
865 }
866
867 /* kfifo */
868 spin_lock_init(&fujitsu_hotkey->fifo_lock);
869 fujitsu_hotkey->fifo =
870 kfifo_alloc(RINGBUFFERSIZE * sizeof(int), GFP_KERNEL,
871 &fujitsu_hotkey->fifo_lock);
872 if (IS_ERR(fujitsu_hotkey->fifo)) {
873 printk(KERN_ERR "kfifo_alloc failed\n");
874 error = PTR_ERR(fujitsu_hotkey->fifo);
875 goto err_stop;
876 }
877
878 fujitsu_hotkey->input = input = input_allocate_device();
879 if (!input) {
880 error = -ENOMEM;
881 goto err_uninstall_notify;
882 }
883
884 snprintf(fujitsu_hotkey->phys, sizeof(fujitsu_hotkey->phys),
885 "%s/video/input0", acpi_device_hid(device));
886
887 input->name = acpi_device_name(device);
888 input->phys = fujitsu_hotkey->phys;
889 input->id.bustype = BUS_HOST;
890 input->id.product = 0x06;
891 input->dev.parent = &device->dev;
892
893 set_bit(EV_KEY, input->evbit);
894 set_bit(fujitsu->keycode1, input->keybit);
895 set_bit(fujitsu->keycode2, input->keybit);
896 set_bit(fujitsu->keycode3, input->keybit);
897 set_bit(fujitsu->keycode4, input->keybit);
898 set_bit(KEY_UNKNOWN, input->keybit);
899
900 error = input_register_device(input);
901 if (error)
902 goto err_free_input_dev;
903
904 result = acpi_bus_get_power(fujitsu_hotkey->acpi_handle, &state);
905 if (result) {
906 printk(KERN_ERR "Error reading power state\n");
907 goto end;
908 }
909
910 printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
911 acpi_device_name(device), acpi_device_bid(device),
912 !device->power.state ? "on" : "off");
913
914 fujitsu_hotkey->dev = device;
915
916 if (ACPI_SUCCESS
917 (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
918 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
919 if (ACPI_FAILURE
920 (acpi_evaluate_object
921 (device->handle, METHOD_NAME__INI, NULL, NULL)))
922 printk(KERN_ERR "_INI Method failed\n");
923 }
924
925 i = 0;
926 while (call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0) != 0
927 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE)
928 ; /* No action, result is discarded */
929 vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i);
930
931 fujitsu_hotkey->rfkill_state =
932 call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
933
934 /* Suspect this is a keymap of the application panel, print it */
935 printk(KERN_INFO "fujitsu-laptop: BTNI: [0x%x]\n",
936 call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0));
937
938 #ifdef CONFIG_LEDS_CLASS
939 if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
940 result = led_classdev_register(&fujitsu->pf_device->dev,
941 &logolamp_led);
942 if (result == 0) {
943 fujitsu_hotkey->logolamp_registered = 1;
944 } else {
945 printk(KERN_ERR "fujitsu-laptop: Could not register "
946 "LED handler for logo lamp, error %i\n", result);
947 }
948 }
949
950 if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
951 (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
952 result = led_classdev_register(&fujitsu->pf_device->dev,
953 &kblamps_led);
954 if (result == 0) {
955 fujitsu_hotkey->kblamps_registered = 1;
956 } else {
957 printk(KERN_ERR "fujitsu-laptop: Could not register "
958 "LED handler for keyboard lamps, error %i\n", result);
959 }
960 }
961 #endif
962
963 return result;
964
965end:
966err_free_input_dev:
967 input_free_device(input);
968err_uninstall_notify:
969 acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
970 acpi_fujitsu_hotkey_notify);
971 kfifo_free(fujitsu_hotkey->fifo);
972err_stop:
973
974 return result;
975}
976
977static int acpi_fujitsu_hotkey_remove(struct acpi_device *device, int type)
978{
979 acpi_status status;
980 struct fujitsu_hotkey_t *fujitsu_hotkey = NULL;
981
982 if (!device || !acpi_driver_data(device))
983 return -EINVAL;
984
985 fujitsu_hotkey = acpi_driver_data(device);
986
987 status = acpi_remove_notify_handler(fujitsu_hotkey->acpi_handle,
988 ACPI_DEVICE_NOTIFY,
989 acpi_fujitsu_hotkey_notify);
990
991 fujitsu_hotkey->acpi_handle = NULL;
992
993 kfifo_free(fujitsu_hotkey->fifo);
994
995 return 0;
996}
997
998static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event,
999 void *data)
1000{
1001 struct input_dev *input;
1002 int keycode, keycode_r;
1003 unsigned int irb = 1;
1004 int i, status;
1005
1006 input = fujitsu_hotkey->input;
1007
1008 fujitsu_hotkey->rfkill_state =
1009 call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
1010
1011 switch (event) {
1012 case ACPI_FUJITSU_NOTIFY_CODE1:
1013 i = 0;
1014 while ((irb =
1015 call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0
1016 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) {
1017 switch (irb & 0x4ff) {
1018 case KEY1_CODE:
1019 keycode = fujitsu->keycode1;
1020 break;
1021 case KEY2_CODE:
1022 keycode = fujitsu->keycode2;
1023 break;
1024 case KEY3_CODE:
1025 keycode = fujitsu->keycode3;
1026 break;
1027 case KEY4_CODE:
1028 keycode = fujitsu->keycode4;
1029 break;
1030 case 0:
1031 keycode = 0;
1032 break;
1033 default:
1034 vdbg_printk(FUJLAPTOP_DBG_WARN,
1035 "Unknown GIRB result [%x]\n", irb);
1036 keycode = -1;
1037 break;
1038 }
1039 if (keycode > 0) {
1040 vdbg_printk(FUJLAPTOP_DBG_TRACE,
1041 "Push keycode into ringbuffer [%d]\n",
1042 keycode);
1043 status = kfifo_put(fujitsu_hotkey->fifo,
1044 (unsigned char *)&keycode,
1045 sizeof(keycode));
1046 if (status != sizeof(keycode)) {
1047 vdbg_printk(FUJLAPTOP_DBG_WARN,
1048 "Could not push keycode [0x%x]\n",
1049 keycode);
1050 } else {
1051 input_report_key(input, keycode, 1);
1052 input_sync(input);
1053 }
1054 } else if (keycode == 0) {
1055 while ((status =
1056 kfifo_get
1057 (fujitsu_hotkey->fifo, (unsigned char *)
1058 &keycode_r,
1059 sizeof
1060 (keycode_r))) == sizeof(keycode_r)) {
1061 input_report_key(input, keycode_r, 0);
1062 input_sync(input);
1063 vdbg_printk(FUJLAPTOP_DBG_TRACE,
1064 "Pop keycode from ringbuffer [%d]\n",
1065 keycode_r);
1066 }
1067 }
1068 }
1069
1070 break;
1071 default:
1072 keycode = KEY_UNKNOWN;
1073 vdbg_printk(FUJLAPTOP_DBG_WARN,
1074 "Unsupported event [0x%x]\n", event);
1075 input_report_key(input, keycode, 1);
1076 input_sync(input);
1077 input_report_key(input, keycode, 0);
1078 input_sync(input);
1079 break;
1080 }
1081
1082 return;
1083}
1084
1085/* Initialization */
1086
1087static const struct acpi_device_id fujitsu_device_ids[] = {
1088 {ACPI_FUJITSU_HID, 0},
1089 {"", 0},
1090};
1091
1092static struct acpi_driver acpi_fujitsu_driver = {
1093 .name = ACPI_FUJITSU_DRIVER_NAME,
1094 .class = ACPI_FUJITSU_CLASS,
1095 .ids = fujitsu_device_ids,
1096 .ops = {
1097 .add = acpi_fujitsu_add,
1098 .remove = acpi_fujitsu_remove,
1099 },
1100};
1101
1102static const struct acpi_device_id fujitsu_hotkey_device_ids[] = {
1103 {ACPI_FUJITSU_HOTKEY_HID, 0},
1104 {"", 0},
1105};
1106
1107static struct acpi_driver acpi_fujitsu_hotkey_driver = {
1108 .name = ACPI_FUJITSU_HOTKEY_DRIVER_NAME,
1109 .class = ACPI_FUJITSU_CLASS,
1110 .ids = fujitsu_hotkey_device_ids,
1111 .ops = {
1112 .add = acpi_fujitsu_hotkey_add,
1113 .remove = acpi_fujitsu_hotkey_remove,
1114 },
1115};
1116
1117static int __init fujitsu_init(void)
1118{
1119 int ret, result, max_brightness;
1120
1121 if (acpi_disabled)
1122 return -ENODEV;
1123
1124 fujitsu = kmalloc(sizeof(struct fujitsu_t), GFP_KERNEL);
1125 if (!fujitsu)
1126 return -ENOMEM;
1127 memset(fujitsu, 0, sizeof(struct fujitsu_t));
1128 fujitsu->keycode1 = KEY_PROG1;
1129 fujitsu->keycode2 = KEY_PROG2;
1130 fujitsu->keycode3 = KEY_PROG3;
1131 fujitsu->keycode4 = KEY_PROG4;
1132 dmi_check_system(fujitsu_dmi_table);
1133
1134 result = acpi_bus_register_driver(&acpi_fujitsu_driver);
1135 if (result < 0) {
1136 ret = -ENODEV;
1137 goto fail_acpi;
1138 }
1139
1140 /* Register platform stuff */
1141
1142 fujitsu->pf_device = platform_device_alloc("fujitsu-laptop", -1);
1143 if (!fujitsu->pf_device) {
1144 ret = -ENOMEM;
1145 goto fail_platform_driver;
1146 }
1147
1148 ret = platform_device_add(fujitsu->pf_device);
1149 if (ret)
1150 goto fail_platform_device1;
1151
1152 ret =
1153 sysfs_create_group(&fujitsu->pf_device->dev.kobj,
1154 &fujitsupf_attribute_group);
1155 if (ret)
1156 goto fail_platform_device2;
1157
1158 /* Register backlight stuff */
1159
1160 if (!acpi_video_backlight_support()) {
1161 fujitsu->bl_device =
1162 backlight_device_register("fujitsu-laptop", NULL, NULL,
1163 &fujitsubl_ops);
1164 if (IS_ERR(fujitsu->bl_device))
1165 return PTR_ERR(fujitsu->bl_device);
1166 max_brightness = fujitsu->max_brightness;
1167 fujitsu->bl_device->props.max_brightness = max_brightness - 1;
1168 fujitsu->bl_device->props.brightness = fujitsu->brightness_level;
1169 }
1170
1171 ret = platform_driver_register(&fujitsupf_driver);
1172 if (ret)
1173 goto fail_backlight;
1174
1175 /* Register hotkey driver */
1176
1177 fujitsu_hotkey = kmalloc(sizeof(struct fujitsu_hotkey_t), GFP_KERNEL);
1178 if (!fujitsu_hotkey) {
1179 ret = -ENOMEM;
1180 goto fail_hotkey;
1181 }
1182 memset(fujitsu_hotkey, 0, sizeof(struct fujitsu_hotkey_t));
1183
1184 result = acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver);
1185 if (result < 0) {
1186 ret = -ENODEV;
1187 goto fail_hotkey1;
1188 }
1189
1190 /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */
1191
1192 if (!acpi_video_backlight_support()) {
1193 if (call_fext_func(FUNC_BACKLIGHT, 0x2, 0x4, 0x0) == 3)
1194 fujitsu->bl_device->props.power = 4;
1195 else
1196 fujitsu->bl_device->props.power = 0;
1197 }
1198
1199 printk(KERN_INFO "fujitsu-laptop: driver " FUJITSU_DRIVER_VERSION
1200 " successfully loaded.\n");
1201
1202 return 0;
1203
1204fail_hotkey1:
1205
1206 kfree(fujitsu_hotkey);
1207
1208fail_hotkey:
1209
1210 platform_driver_unregister(&fujitsupf_driver);
1211
1212fail_backlight:
1213
1214 if (fujitsu->bl_device)
1215 backlight_device_unregister(fujitsu->bl_device);
1216
1217fail_platform_device2:
1218
1219 platform_device_del(fujitsu->pf_device);
1220
1221fail_platform_device1:
1222
1223 platform_device_put(fujitsu->pf_device);
1224
1225fail_platform_driver:
1226
1227 acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1228
1229fail_acpi:
1230
1231 kfree(fujitsu);
1232
1233 return ret;
1234}
1235
1236static void __exit fujitsu_cleanup(void)
1237{
1238 #ifdef CONFIG_LEDS_CLASS
1239 if (fujitsu_hotkey->logolamp_registered != 0)
1240 led_classdev_unregister(&logolamp_led);
1241
1242 if (fujitsu_hotkey->kblamps_registered != 0)
1243 led_classdev_unregister(&kblamps_led);
1244 #endif
1245
1246 sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
1247 &fujitsupf_attribute_group);
1248 platform_device_unregister(fujitsu->pf_device);
1249 platform_driver_unregister(&fujitsupf_driver);
1250 if (fujitsu->bl_device)
1251 backlight_device_unregister(fujitsu->bl_device);
1252
1253 acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1254
1255 kfree(fujitsu);
1256
1257 acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver);
1258
1259 kfree(fujitsu_hotkey);
1260
1261 printk(KERN_INFO "fujitsu-laptop: driver unloaded.\n");
1262}
1263
1264module_init(fujitsu_init);
1265module_exit(fujitsu_cleanup);
1266
1267module_param(use_alt_lcd_levels, uint, 0644);
1268MODULE_PARM_DESC(use_alt_lcd_levels,
1269 "Use alternative interface for lcd_levels (needed for Lifebook s6410).");
1270module_param(disable_brightness_adjust, uint, 0644);
1271MODULE_PARM_DESC(disable_brightness_adjust, "Disable brightness adjustment .");
1272#ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
1273module_param_named(debug, dbg_level, uint, 0644);
1274MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
1275#endif
1276
1277MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon");
1278MODULE_DESCRIPTION("Fujitsu laptop extras support");
1279MODULE_VERSION(FUJITSU_DRIVER_VERSION);
1280MODULE_LICENSE("GPL");
1281
1282MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
1283MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*");
1284MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");
1285
1286static struct pnp_device_id pnp_ids[] = {
1287 {.id = "FUJ02bf"},
1288 {.id = "FUJ02B1"},
1289 {.id = "FUJ02E3"},
1290 {.id = ""}
1291};
1292
1293MODULE_DEVICE_TABLE(pnp, pnp_ids);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-26 06:25:36 -0500