1 /*-*-linux-c-*-*/
2
3 /*
4 Copyright (C) 2007,2008 Jonathan Woithe <jwoithe@just42.net>
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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
60
61 #include <linux/module.h>
62 #include <linux/kernel.h>
63 #include <linux/init.h>
64 #include <linux/acpi.h>
65 #include <linux/dmi.h>
66 #include <linux/backlight.h>
67 #include <linux/fb.h>
68 #include <linux/input.h>
69 #include <linux/kfifo.h>
70 #include <linux/platform_device.h>
71 #include <linux/slab.h>
72 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
73 #include <linux/leds.h>
74 #endif
75 #include <acpi/video.h>
76
77 #define FUJITSU_DRIVER_VERSION "0.6.0"
78
79 #define FUJITSU_LCD_N_LEVELS 8
80
81 #define ACPI_FUJITSU_CLASS "fujitsu"
82 #define ACPI_FUJITSU_HID "FUJ02B1"
83 #define ACPI_FUJITSU_DRIVER_NAME "Fujitsu laptop FUJ02B1 ACPI brightness driver"
84 #define ACPI_FUJITSU_DEVICE_NAME "Fujitsu FUJ02B1"
85 #define ACPI_FUJITSU_HOTKEY_HID "FUJ02E3"
86 #define ACPI_FUJITSU_HOTKEY_DRIVER_NAME "Fujitsu laptop FUJ02E3 ACPI hotkeys driver"
87 #define ACPI_FUJITSU_HOTKEY_DEVICE_NAME "Fujitsu FUJ02E3"
88
89 #define ACPI_FUJITSU_NOTIFY_CODE1 0x80
90
91 #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x86
92 #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87
93
94 /* FUNC interface - command values */
95 #define FUNC_RFKILL 0x1000
96 #define FUNC_LEDS 0x1001
97 #define FUNC_BUTTONS 0x1002
98 #define FUNC_BACKLIGHT 0x1004
99
100 /* FUNC interface - responses */
101 #define UNSUPPORTED_CMD 0x80000000
102
103 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
104 /* FUNC interface - LED control */
105 #define FUNC_LED_OFF 0x1
106 #define FUNC_LED_ON 0x30001
107 #define KEYBOARD_LAMPS 0x100
108 #define LOGOLAMP_POWERON 0x2000
109 #define LOGOLAMP_ALWAYS 0x4000
110 #endif
111
112 /* Hotkey details */
113 #define KEY1_CODE 0x410 /* codes for the keys in the GIRB register */
114 #define KEY2_CODE 0x411
115 #define KEY3_CODE 0x412
116 #define KEY4_CODE 0x413
117
118 #define MAX_HOTKEY_RINGBUFFER_SIZE 100
119 #define RINGBUFFERSIZE 40
120
121 /* Debugging */
122 #define FUJLAPTOP_LOG ACPI_FUJITSU_HID ": "
123 #define FUJLAPTOP_ERR KERN_ERR FUJLAPTOP_LOG
124 #define FUJLAPTOP_NOTICE KERN_NOTICE FUJLAPTOP_LOG
125 #define FUJLAPTOP_INFO KERN_INFO FUJLAPTOP_LOG
126 #define FUJLAPTOP_DEBUG KERN_DEBUG FUJLAPTOP_LOG
127
128 #define FUJLAPTOP_DBG_ALL 0xffff
129 #define FUJLAPTOP_DBG_ERROR 0x0001
130 #define FUJLAPTOP_DBG_WARN 0x0002
131 #define FUJLAPTOP_DBG_INFO 0x0004
132 #define FUJLAPTOP_DBG_TRACE 0x0008
133
134 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
135 #define vdbg_printk(a_dbg_level, format, arg...) \
136 do { if (dbg_level & a_dbg_level) \
137 printk(FUJLAPTOP_DEBUG "%s: " format, __func__ , ## arg); \
138 } while (0)
139 #else
140 #define vdbg_printk(a_dbg_level, format, arg...) \
141 do { } while (0)
142 #endif
143
144 /* Device controlling the backlight and associated keys */
145 struct fujitsu_t {
146 acpi_handle acpi_handle;
147 struct acpi_device *dev;
148 struct input_dev *input;
149 char phys[32];
150 struct backlight_device *bl_device;
151 struct platform_device *pf_device;
152 int keycode1, keycode2, keycode3, keycode4;
153
154 unsigned int max_brightness;
155 unsigned int brightness_changed;
156 unsigned int brightness_level;
157 };
158
159 static struct fujitsu_t *fujitsu;
160 static int use_alt_lcd_levels = -1;
161 static int disable_brightness_adjust = -1;
162
163 /* Device used to access other hotkeys on the laptop */
164 struct fujitsu_hotkey_t {
165 acpi_handle acpi_handle;
166 struct acpi_device *dev;
167 struct input_dev *input;
168 char phys[32];
169 struct platform_device *pf_device;
170 struct kfifo fifo;
171 spinlock_t fifo_lock;
172 int rfkill_supported;
173 int rfkill_state;
174 int logolamp_registered;
175 int kblamps_registered;
176 };
177
178 static struct fujitsu_hotkey_t *fujitsu_hotkey;
179
180 static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event);
181
182 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
183 static enum led_brightness logolamp_get(struct led_classdev *cdev);
184 static void logolamp_set(struct led_classdev *cdev,
185 enum led_brightness brightness);
186
187 static struct led_classdev logolamp_led = {
188 .name = "fujitsu::logolamp",
189 .brightness_get = logolamp_get,
190 .brightness_set = logolamp_set
191 };
192
193 static enum led_brightness kblamps_get(struct led_classdev *cdev);
194 static void kblamps_set(struct led_classdev *cdev,
195 enum led_brightness brightness);
196
197 static struct led_classdev kblamps_led = {
198 .name = "fujitsu::kblamps",
199 .brightness_get = kblamps_get,
200 .brightness_set = kblamps_set
201 };
202 #endif
203
204 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
205 static u32 dbg_level = 0x03;
206 #endif
207
208 static void acpi_fujitsu_notify(struct acpi_device *device, u32 event);
209
210 /* Fujitsu ACPI interface function */
211
call_fext_func(int cmd,int arg0,int arg1,int arg2)212 static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
213 {
214 acpi_status status = AE_OK;
215 union acpi_object params[4] = {
216 { .type = ACPI_TYPE_INTEGER },
217 { .type = ACPI_TYPE_INTEGER },
218 { .type = ACPI_TYPE_INTEGER },
219 { .type = ACPI_TYPE_INTEGER }
220 };
221 struct acpi_object_list arg_list = { 4, ¶ms[0] };
222 unsigned long long value;
223 acpi_handle handle = NULL;
224
225 status = acpi_get_handle(fujitsu_hotkey->acpi_handle, "FUNC", &handle);
226 if (ACPI_FAILURE(status)) {
227 vdbg_printk(FUJLAPTOP_DBG_ERROR,
228 "FUNC interface is not present\n");
229 return -ENODEV;
230 }
231
232 params[0].integer.value = cmd;
233 params[1].integer.value = arg0;
234 params[2].integer.value = arg1;
235 params[3].integer.value = arg2;
236
237 status = acpi_evaluate_integer(handle, NULL, &arg_list, &value);
238 if (ACPI_FAILURE(status)) {
239 vdbg_printk(FUJLAPTOP_DBG_WARN,
240 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) call failed\n",
241 cmd, arg0, arg1, arg2);
242 return -ENODEV;
243 }
244
245 vdbg_printk(FUJLAPTOP_DBG_TRACE,
246 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n",
247 cmd, arg0, arg1, arg2, (int)value);
248 return value;
249 }
250
251 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
252 /* LED class callbacks */
253
logolamp_set(struct led_classdev * cdev,enum led_brightness brightness)254 static void logolamp_set(struct led_classdev *cdev,
255 enum led_brightness brightness)
256 {
257 if (brightness >= LED_FULL) {
258 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
259 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_ON);
260 } else if (brightness >= LED_HALF) {
261 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
262 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_OFF);
263 } else {
264 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_OFF);
265 }
266 }
267
kblamps_set(struct led_classdev * cdev,enum led_brightness brightness)268 static void kblamps_set(struct led_classdev *cdev,
269 enum led_brightness brightness)
270 {
271 if (brightness >= LED_FULL)
272 call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_ON);
273 else
274 call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_OFF);
275 }
276
logolamp_get(struct led_classdev * cdev)277 static enum led_brightness logolamp_get(struct led_classdev *cdev)
278 {
279 enum led_brightness brightness = LED_OFF;
280 int poweron, always;
281
282 poweron = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_POWERON, 0x0);
283 if (poweron == FUNC_LED_ON) {
284 brightness = LED_HALF;
285 always = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_ALWAYS, 0x0);
286 if (always == FUNC_LED_ON)
287 brightness = LED_FULL;
288 }
289 return brightness;
290 }
291
kblamps_get(struct led_classdev * cdev)292 static enum led_brightness kblamps_get(struct led_classdev *cdev)
293 {
294 enum led_brightness brightness = LED_OFF;
295
296 if (call_fext_func(FUNC_LEDS, 0x2, KEYBOARD_LAMPS, 0x0) == FUNC_LED_ON)
297 brightness = LED_FULL;
298
299 return brightness;
300 }
301 #endif
302
303 /* Hardware access for LCD brightness control */
304
set_lcd_level(int level)305 static int set_lcd_level(int level)
306 {
307 acpi_status status = AE_OK;
308 acpi_handle handle = NULL;
309
310 vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBLL [%d]\n",
311 level);
312
313 if (level < 0 || level >= fujitsu->max_brightness)
314 return -EINVAL;
315
316 status = acpi_get_handle(fujitsu->acpi_handle, "SBLL", &handle);
317 if (ACPI_FAILURE(status)) {
318 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBLL not present\n");
319 return -ENODEV;
320 }
321
322
323 status = acpi_execute_simple_method(handle, NULL, level);
324 if (ACPI_FAILURE(status))
325 return -ENODEV;
326
327 return 0;
328 }
329
set_lcd_level_alt(int level)330 static int set_lcd_level_alt(int level)
331 {
332 acpi_status status = AE_OK;
333 acpi_handle handle = NULL;
334
335 vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBL2 [%d]\n",
336 level);
337
338 if (level < 0 || level >= fujitsu->max_brightness)
339 return -EINVAL;
340
341 status = acpi_get_handle(fujitsu->acpi_handle, "SBL2", &handle);
342 if (ACPI_FAILURE(status)) {
343 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBL2 not present\n");
344 return -ENODEV;
345 }
346
347 status = acpi_execute_simple_method(handle, NULL, level);
348 if (ACPI_FAILURE(status))
349 return -ENODEV;
350
351 return 0;
352 }
353
get_lcd_level(void)354 static int get_lcd_level(void)
355 {
356 unsigned long long state = 0;
357 acpi_status status = AE_OK;
358
359 vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLL\n");
360
361 status =
362 acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state);
363 if (ACPI_FAILURE(status))
364 return 0;
365
366 fujitsu->brightness_level = state & 0x0fffffff;
367
368 if (state & 0x80000000)
369 fujitsu->brightness_changed = 1;
370 else
371 fujitsu->brightness_changed = 0;
372
373 return fujitsu->brightness_level;
374 }
375
get_max_brightness(void)376 static int get_max_brightness(void)
377 {
378 unsigned long long state = 0;
379 acpi_status status = AE_OK;
380
381 vdbg_printk(FUJLAPTOP_DBG_TRACE, "get max lcd level via RBLL\n");
382
383 status =
384 acpi_evaluate_integer(fujitsu->acpi_handle, "RBLL", NULL, &state);
385 if (ACPI_FAILURE(status))
386 return -1;
387
388 fujitsu->max_brightness = state;
389
390 return fujitsu->max_brightness;
391 }
392
393 /* Backlight device stuff */
394
bl_get_brightness(struct backlight_device * b)395 static int bl_get_brightness(struct backlight_device *b)
396 {
397 return get_lcd_level();
398 }
399
bl_update_status(struct backlight_device * b)400 static int bl_update_status(struct backlight_device *b)
401 {
402 int ret;
403 if (b->props.power == FB_BLANK_POWERDOWN)
404 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
405 else
406 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x0);
407 if (ret != 0)
408 vdbg_printk(FUJLAPTOP_DBG_ERROR,
409 "Unable to adjust backlight power, error code %i\n",
410 ret);
411
412 if (use_alt_lcd_levels)
413 ret = set_lcd_level_alt(b->props.brightness);
414 else
415 ret = set_lcd_level(b->props.brightness);
416 if (ret != 0)
417 vdbg_printk(FUJLAPTOP_DBG_ERROR,
418 "Unable to adjust LCD brightness, error code %i\n",
419 ret);
420 return ret;
421 }
422
423 static const struct backlight_ops fujitsubl_ops = {
424 .get_brightness = bl_get_brightness,
425 .update_status = bl_update_status,
426 };
427
428 /* Platform LCD brightness device */
429
430 static ssize_t
show_max_brightness(struct device * dev,struct device_attribute * attr,char * buf)431 show_max_brightness(struct device *dev,
432 struct device_attribute *attr, char *buf)
433 {
434
435 int ret;
436
437 ret = get_max_brightness();
438 if (ret < 0)
439 return ret;
440
441 return sprintf(buf, "%i\n", ret);
442 }
443
444 static ssize_t
show_brightness_changed(struct device * dev,struct device_attribute * attr,char * buf)445 show_brightness_changed(struct device *dev,
446 struct device_attribute *attr, char *buf)
447 {
448
449 int ret;
450
451 ret = fujitsu->brightness_changed;
452 if (ret < 0)
453 return ret;
454
455 return sprintf(buf, "%i\n", ret);
456 }
457
show_lcd_level(struct device * dev,struct device_attribute * attr,char * buf)458 static ssize_t show_lcd_level(struct device *dev,
459 struct device_attribute *attr, char *buf)
460 {
461
462 int ret;
463
464 ret = get_lcd_level();
465 if (ret < 0)
466 return ret;
467
468 return sprintf(buf, "%i\n", ret);
469 }
470
store_lcd_level(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)471 static ssize_t store_lcd_level(struct device *dev,
472 struct device_attribute *attr, const char *buf,
473 size_t count)
474 {
475
476 int level, ret;
477
478 if (sscanf(buf, "%i", &level) != 1
479 || (level < 0 || level >= fujitsu->max_brightness))
480 return -EINVAL;
481
482 if (use_alt_lcd_levels)
483 ret = set_lcd_level_alt(level);
484 else
485 ret = set_lcd_level(level);
486 if (ret < 0)
487 return ret;
488
489 ret = get_lcd_level();
490 if (ret < 0)
491 return ret;
492
493 return count;
494 }
495
496 static ssize_t
ignore_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)497 ignore_store(struct device *dev,
498 struct device_attribute *attr, const char *buf, size_t count)
499 {
500 return count;
501 }
502
503 static ssize_t
show_lid_state(struct device * dev,struct device_attribute * attr,char * buf)504 show_lid_state(struct device *dev,
505 struct device_attribute *attr, char *buf)
506 {
507 if (!(fujitsu_hotkey->rfkill_supported & 0x100))
508 return sprintf(buf, "unknown\n");
509 if (fujitsu_hotkey->rfkill_state & 0x100)
510 return sprintf(buf, "open\n");
511 else
512 return sprintf(buf, "closed\n");
513 }
514
515 static ssize_t
show_dock_state(struct device * dev,struct device_attribute * attr,char * buf)516 show_dock_state(struct device *dev,
517 struct device_attribute *attr, char *buf)
518 {
519 if (!(fujitsu_hotkey->rfkill_supported & 0x200))
520 return sprintf(buf, "unknown\n");
521 if (fujitsu_hotkey->rfkill_state & 0x200)
522 return sprintf(buf, "docked\n");
523 else
524 return sprintf(buf, "undocked\n");
525 }
526
527 static ssize_t
show_radios_state(struct device * dev,struct device_attribute * attr,char * buf)528 show_radios_state(struct device *dev,
529 struct device_attribute *attr, char *buf)
530 {
531 if (!(fujitsu_hotkey->rfkill_supported & 0x20))
532 return sprintf(buf, "unknown\n");
533 if (fujitsu_hotkey->rfkill_state & 0x20)
534 return sprintf(buf, "on\n");
535 else
536 return sprintf(buf, "killed\n");
537 }
538
539 static DEVICE_ATTR(max_brightness, 0444, show_max_brightness, ignore_store);
540 static DEVICE_ATTR(brightness_changed, 0444, show_brightness_changed,
541 ignore_store);
542 static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
543 static DEVICE_ATTR(lid, 0444, show_lid_state, ignore_store);
544 static DEVICE_ATTR(dock, 0444, show_dock_state, ignore_store);
545 static DEVICE_ATTR(radios, 0444, show_radios_state, ignore_store);
546
547 static struct attribute *fujitsupf_attributes[] = {
548 &dev_attr_brightness_changed.attr,
549 &dev_attr_max_brightness.attr,
550 &dev_attr_lcd_level.attr,
551 &dev_attr_lid.attr,
552 &dev_attr_dock.attr,
553 &dev_attr_radios.attr,
554 NULL
555 };
556
557 static struct attribute_group fujitsupf_attribute_group = {
558 .attrs = fujitsupf_attributes
559 };
560
561 static struct platform_driver fujitsupf_driver = {
562 .driver = {
563 .name = "fujitsu-laptop",
564 }
565 };
566
dmi_check_cb_common(const struct dmi_system_id * id)567 static void __init dmi_check_cb_common(const struct dmi_system_id *id)
568 {
569 pr_info("Identified laptop model '%s'\n", id->ident);
570 if (use_alt_lcd_levels == -1) {
571 if (acpi_has_method(NULL,
572 "\\_SB.PCI0.LPCB.FJEX.SBL2"))
573 use_alt_lcd_levels = 1;
574 else
575 use_alt_lcd_levels = 0;
576 vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detected usealt as "
577 "%i\n", use_alt_lcd_levels);
578 }
579 }
580
dmi_check_cb_s6410(const struct dmi_system_id * id)581 static int __init dmi_check_cb_s6410(const struct dmi_system_id *id)
582 {
583 dmi_check_cb_common(id);
584 fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */
585 fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */
586 return 1;
587 }
588
dmi_check_cb_s6420(const struct dmi_system_id * id)589 static int __init dmi_check_cb_s6420(const struct dmi_system_id *id)
590 {
591 dmi_check_cb_common(id);
592 fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */
593 fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */
594 return 1;
595 }
596
dmi_check_cb_p8010(const struct dmi_system_id * id)597 static int __init dmi_check_cb_p8010(const struct dmi_system_id *id)
598 {
599 dmi_check_cb_common(id);
600 fujitsu->keycode1 = KEY_HELP; /* "Support" */
601 fujitsu->keycode3 = KEY_SWITCHVIDEOMODE; /* "Presentation" */
602 fujitsu->keycode4 = KEY_WWW; /* "Internet" */
603 return 1;
604 }
605
606 static const struct dmi_system_id fujitsu_dmi_table[] __initconst = {
607 {
608 .ident = "Fujitsu Siemens S6410",
609 .matches = {
610 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
611 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6410"),
612 },
613 .callback = dmi_check_cb_s6410},
614 {
615 .ident = "Fujitsu Siemens S6420",
616 .matches = {
617 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
618 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6420"),
619 },
620 .callback = dmi_check_cb_s6420},
621 {
622 .ident = "Fujitsu LifeBook P8010",
623 .matches = {
624 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
625 DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P8010"),
626 },
627 .callback = dmi_check_cb_p8010},
628 {}
629 };
630
631 /* ACPI device for LCD brightness control */
632
acpi_fujitsu_add(struct acpi_device * device)633 static int acpi_fujitsu_add(struct acpi_device *device)
634 {
635 int state = 0;
636 struct input_dev *input;
637 int error;
638
639 if (!device)
640 return -EINVAL;
641
642 fujitsu->acpi_handle = device->handle;
643 sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_DEVICE_NAME);
644 sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
645 device->driver_data = fujitsu;
646
647 fujitsu->input = input = input_allocate_device();
648 if (!input) {
649 error = -ENOMEM;
650 goto err_stop;
651 }
652
653 snprintf(fujitsu->phys, sizeof(fujitsu->phys),
654 "%s/video/input0", acpi_device_hid(device));
655
656 input->name = acpi_device_name(device);
657 input->phys = fujitsu->phys;
658 input->id.bustype = BUS_HOST;
659 input->id.product = 0x06;
660 input->dev.parent = &device->dev;
661 input->evbit[0] = BIT(EV_KEY);
662 set_bit(KEY_BRIGHTNESSUP, input->keybit);
663 set_bit(KEY_BRIGHTNESSDOWN, input->keybit);
664 set_bit(KEY_UNKNOWN, input->keybit);
665
666 error = input_register_device(input);
667 if (error)
668 goto err_free_input_dev;
669
670 error = acpi_bus_update_power(fujitsu->acpi_handle, &state);
671 if (error) {
672 pr_err("Error reading power state\n");
673 goto err_unregister_input_dev;
674 }
675
676 pr_info("ACPI: %s [%s] (%s)\n",
677 acpi_device_name(device), acpi_device_bid(device),
678 !device->power.state ? "on" : "off");
679
680 fujitsu->dev = device;
681
682 if (acpi_has_method(device->handle, METHOD_NAME__INI)) {
683 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
684 if (ACPI_FAILURE
685 (acpi_evaluate_object
686 (device->handle, METHOD_NAME__INI, NULL, NULL)))
687 pr_err("_INI Method failed\n");
688 }
689
690 /* do config (detect defaults) */
691 use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0;
692 disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0;
693 vdbg_printk(FUJLAPTOP_DBG_INFO,
694 "config: [alt interface: %d], [adjust disable: %d]\n",
695 use_alt_lcd_levels, disable_brightness_adjust);
696
697 if (get_max_brightness() <= 0)
698 fujitsu->max_brightness = FUJITSU_LCD_N_LEVELS;
699 get_lcd_level();
700
701 return 0;
702
703 err_unregister_input_dev:
704 input_unregister_device(input);
705 input = NULL;
706 err_free_input_dev:
707 input_free_device(input);
708 err_stop:
709 return error;
710 }
711
acpi_fujitsu_remove(struct acpi_device * device)712 static int acpi_fujitsu_remove(struct acpi_device *device)
713 {
714 struct fujitsu_t *fujitsu = acpi_driver_data(device);
715 struct input_dev *input = fujitsu->input;
716
717 input_unregister_device(input);
718
719 fujitsu->acpi_handle = NULL;
720
721 return 0;
722 }
723
724 /* Brightness notify */
725
acpi_fujitsu_notify(struct acpi_device * device,u32 event)726 static void acpi_fujitsu_notify(struct acpi_device *device, u32 event)
727 {
728 struct input_dev *input;
729 int keycode;
730 int oldb, newb;
731
732 input = fujitsu->input;
733
734 switch (event) {
735 case ACPI_FUJITSU_NOTIFY_CODE1:
736 keycode = 0;
737 oldb = fujitsu->brightness_level;
738 get_lcd_level();
739 newb = fujitsu->brightness_level;
740
741 vdbg_printk(FUJLAPTOP_DBG_TRACE,
742 "brightness button event [%i -> %i (%i)]\n",
743 oldb, newb, fujitsu->brightness_changed);
744
745 if (oldb < newb) {
746 if (disable_brightness_adjust != 1) {
747 if (use_alt_lcd_levels)
748 set_lcd_level_alt(newb);
749 else
750 set_lcd_level(newb);
751 }
752 keycode = KEY_BRIGHTNESSUP;
753 } else if (oldb > newb) {
754 if (disable_brightness_adjust != 1) {
755 if (use_alt_lcd_levels)
756 set_lcd_level_alt(newb);
757 else
758 set_lcd_level(newb);
759 }
760 keycode = KEY_BRIGHTNESSDOWN;
761 }
762 break;
763 default:
764 keycode = KEY_UNKNOWN;
765 vdbg_printk(FUJLAPTOP_DBG_WARN,
766 "unsupported event [0x%x]\n", event);
767 break;
768 }
769
770 if (keycode != 0) {
771 input_report_key(input, keycode, 1);
772 input_sync(input);
773 input_report_key(input, keycode, 0);
774 input_sync(input);
775 }
776 }
777
778 /* ACPI device for hotkey handling */
779
acpi_fujitsu_hotkey_add(struct acpi_device * device)780 static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
781 {
782 int result = 0;
783 int state = 0;
784 struct input_dev *input;
785 int error;
786 int i;
787
788 if (!device)
789 return -EINVAL;
790
791 fujitsu_hotkey->acpi_handle = device->handle;
792 sprintf(acpi_device_name(device), "%s",
793 ACPI_FUJITSU_HOTKEY_DEVICE_NAME);
794 sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
795 device->driver_data = fujitsu_hotkey;
796
797 /* kfifo */
798 spin_lock_init(&fujitsu_hotkey->fifo_lock);
799 error = kfifo_alloc(&fujitsu_hotkey->fifo, RINGBUFFERSIZE * sizeof(int),
800 GFP_KERNEL);
801 if (error) {
802 pr_err("kfifo_alloc failed\n");
803 goto err_stop;
804 }
805
806 fujitsu_hotkey->input = input = input_allocate_device();
807 if (!input) {
808 error = -ENOMEM;
809 goto err_free_fifo;
810 }
811
812 snprintf(fujitsu_hotkey->phys, sizeof(fujitsu_hotkey->phys),
813 "%s/video/input0", acpi_device_hid(device));
814
815 input->name = acpi_device_name(device);
816 input->phys = fujitsu_hotkey->phys;
817 input->id.bustype = BUS_HOST;
818 input->id.product = 0x06;
819 input->dev.parent = &device->dev;
820
821 set_bit(EV_KEY, input->evbit);
822 set_bit(fujitsu->keycode1, input->keybit);
823 set_bit(fujitsu->keycode2, input->keybit);
824 set_bit(fujitsu->keycode3, input->keybit);
825 set_bit(fujitsu->keycode4, input->keybit);
826 set_bit(KEY_UNKNOWN, input->keybit);
827
828 error = input_register_device(input);
829 if (error)
830 goto err_free_input_dev;
831
832 error = acpi_bus_update_power(fujitsu_hotkey->acpi_handle, &state);
833 if (error) {
834 pr_err("Error reading power state\n");
835 goto err_unregister_input_dev;
836 }
837
838 pr_info("ACPI: %s [%s] (%s)\n",
839 acpi_device_name(device), acpi_device_bid(device),
840 !device->power.state ? "on" : "off");
841
842 fujitsu_hotkey->dev = device;
843
844 if (acpi_has_method(device->handle, METHOD_NAME__INI)) {
845 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
846 if (ACPI_FAILURE
847 (acpi_evaluate_object
848 (device->handle, METHOD_NAME__INI, NULL, NULL)))
849 pr_err("_INI Method failed\n");
850 }
851
852 i = 0;
853 while (call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0) != 0
854 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE)
855 ; /* No action, result is discarded */
856 vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i);
857
858 fujitsu_hotkey->rfkill_supported =
859 call_fext_func(FUNC_RFKILL, 0x0, 0x0, 0x0);
860
861 /* Make sure our bitmask of supported functions is cleared if the
862 RFKILL function block is not implemented, like on the S7020. */
863 if (fujitsu_hotkey->rfkill_supported == UNSUPPORTED_CMD)
864 fujitsu_hotkey->rfkill_supported = 0;
865
866 if (fujitsu_hotkey->rfkill_supported)
867 fujitsu_hotkey->rfkill_state =
868 call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
869
870 /* Suspect this is a keymap of the application panel, print it */
871 pr_info("BTNI: [0x%x]\n", call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0));
872
873 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
874 if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
875 result = led_classdev_register(&fujitsu->pf_device->dev,
876 &logolamp_led);
877 if (result == 0) {
878 fujitsu_hotkey->logolamp_registered = 1;
879 } else {
880 pr_err("Could not register LED handler for logo lamp, error %i\n",
881 result);
882 }
883 }
884
885 if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
886 (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
887 result = led_classdev_register(&fujitsu->pf_device->dev,
888 &kblamps_led);
889 if (result == 0) {
890 fujitsu_hotkey->kblamps_registered = 1;
891 } else {
892 pr_err("Could not register LED handler for keyboard lamps, error %i\n",
893 result);
894 }
895 }
896 #endif
897
898 return result;
899
900 err_unregister_input_dev:
901 input_unregister_device(input);
902 input = NULL;
903 err_free_input_dev:
904 input_free_device(input);
905 err_free_fifo:
906 kfifo_free(&fujitsu_hotkey->fifo);
907 err_stop:
908 return error;
909 }
910
acpi_fujitsu_hotkey_remove(struct acpi_device * device)911 static int acpi_fujitsu_hotkey_remove(struct acpi_device *device)
912 {
913 struct fujitsu_hotkey_t *fujitsu_hotkey = acpi_driver_data(device);
914 struct input_dev *input = fujitsu_hotkey->input;
915
916 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
917 if (fujitsu_hotkey->logolamp_registered)
918 led_classdev_unregister(&logolamp_led);
919
920 if (fujitsu_hotkey->kblamps_registered)
921 led_classdev_unregister(&kblamps_led);
922 #endif
923
924 input_unregister_device(input);
925
926 kfifo_free(&fujitsu_hotkey->fifo);
927
928 fujitsu_hotkey->acpi_handle = NULL;
929
930 return 0;
931 }
932
acpi_fujitsu_hotkey_notify(struct acpi_device * device,u32 event)933 static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event)
934 {
935 struct input_dev *input;
936 int keycode, keycode_r;
937 unsigned int irb = 1;
938 int i, status;
939
940 input = fujitsu_hotkey->input;
941
942 if (fujitsu_hotkey->rfkill_supported)
943 fujitsu_hotkey->rfkill_state =
944 call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
945
946 switch (event) {
947 case ACPI_FUJITSU_NOTIFY_CODE1:
948 i = 0;
949 while ((irb =
950 call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0
951 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) {
952 switch (irb & 0x4ff) {
953 case KEY1_CODE:
954 keycode = fujitsu->keycode1;
955 break;
956 case KEY2_CODE:
957 keycode = fujitsu->keycode2;
958 break;
959 case KEY3_CODE:
960 keycode = fujitsu->keycode3;
961 break;
962 case KEY4_CODE:
963 keycode = fujitsu->keycode4;
964 break;
965 case 0:
966 keycode = 0;
967 break;
968 default:
969 vdbg_printk(FUJLAPTOP_DBG_WARN,
970 "Unknown GIRB result [%x]\n", irb);
971 keycode = -1;
972 break;
973 }
974 if (keycode > 0) {
975 vdbg_printk(FUJLAPTOP_DBG_TRACE,
976 "Push keycode into ringbuffer [%d]\n",
977 keycode);
978 status = kfifo_in_locked(&fujitsu_hotkey->fifo,
979 (unsigned char *)&keycode,
980 sizeof(keycode),
981 &fujitsu_hotkey->fifo_lock);
982 if (status != sizeof(keycode)) {
983 vdbg_printk(FUJLAPTOP_DBG_WARN,
984 "Could not push keycode [0x%x]\n",
985 keycode);
986 } else {
987 input_report_key(input, keycode, 1);
988 input_sync(input);
989 }
990 } else if (keycode == 0) {
991 while ((status =
992 kfifo_out_locked(
993 &fujitsu_hotkey->fifo,
994 (unsigned char *) &keycode_r,
995 sizeof(keycode_r),
996 &fujitsu_hotkey->fifo_lock))
997 == sizeof(keycode_r)) {
998 input_report_key(input, keycode_r, 0);
999 input_sync(input);
1000 vdbg_printk(FUJLAPTOP_DBG_TRACE,
1001 "Pop keycode from ringbuffer [%d]\n",
1002 keycode_r);
1003 }
1004 }
1005 }
1006
1007 break;
1008 default:
1009 keycode = KEY_UNKNOWN;
1010 vdbg_printk(FUJLAPTOP_DBG_WARN,
1011 "Unsupported event [0x%x]\n", event);
1012 input_report_key(input, keycode, 1);
1013 input_sync(input);
1014 input_report_key(input, keycode, 0);
1015 input_sync(input);
1016 break;
1017 }
1018 }
1019
1020 /* Initialization */
1021
1022 static const struct acpi_device_id fujitsu_device_ids[] = {
1023 {ACPI_FUJITSU_HID, 0},
1024 {"", 0},
1025 };
1026
1027 static struct acpi_driver acpi_fujitsu_driver = {
1028 .name = ACPI_FUJITSU_DRIVER_NAME,
1029 .class = ACPI_FUJITSU_CLASS,
1030 .ids = fujitsu_device_ids,
1031 .ops = {
1032 .add = acpi_fujitsu_add,
1033 .remove = acpi_fujitsu_remove,
1034 .notify = acpi_fujitsu_notify,
1035 },
1036 };
1037
1038 static const struct acpi_device_id fujitsu_hotkey_device_ids[] = {
1039 {ACPI_FUJITSU_HOTKEY_HID, 0},
1040 {"", 0},
1041 };
1042
1043 static struct acpi_driver acpi_fujitsu_hotkey_driver = {
1044 .name = ACPI_FUJITSU_HOTKEY_DRIVER_NAME,
1045 .class = ACPI_FUJITSU_CLASS,
1046 .ids = fujitsu_hotkey_device_ids,
1047 .ops = {
1048 .add = acpi_fujitsu_hotkey_add,
1049 .remove = acpi_fujitsu_hotkey_remove,
1050 .notify = acpi_fujitsu_hotkey_notify,
1051 },
1052 };
1053
1054 static const struct acpi_device_id fujitsu_ids[] __used = {
1055 {ACPI_FUJITSU_HID, 0},
1056 {ACPI_FUJITSU_HOTKEY_HID, 0},
1057 {"", 0}
1058 };
1059 MODULE_DEVICE_TABLE(acpi, fujitsu_ids);
1060
fujitsu_init(void)1061 static int __init fujitsu_init(void)
1062 {
1063 int ret, result, max_brightness;
1064
1065 if (acpi_disabled)
1066 return -ENODEV;
1067
1068 fujitsu = kzalloc(sizeof(struct fujitsu_t), GFP_KERNEL);
1069 if (!fujitsu)
1070 return -ENOMEM;
1071 fujitsu->keycode1 = KEY_PROG1;
1072 fujitsu->keycode2 = KEY_PROG2;
1073 fujitsu->keycode3 = KEY_PROG3;
1074 fujitsu->keycode4 = KEY_PROG4;
1075 dmi_check_system(fujitsu_dmi_table);
1076
1077 result = acpi_bus_register_driver(&acpi_fujitsu_driver);
1078 if (result < 0) {
1079 ret = -ENODEV;
1080 goto fail_acpi;
1081 }
1082
1083 /* Register platform stuff */
1084
1085 fujitsu->pf_device = platform_device_alloc("fujitsu-laptop", -1);
1086 if (!fujitsu->pf_device) {
1087 ret = -ENOMEM;
1088 goto fail_platform_driver;
1089 }
1090
1091 ret = platform_device_add(fujitsu->pf_device);
1092 if (ret)
1093 goto fail_platform_device1;
1094
1095 ret =
1096 sysfs_create_group(&fujitsu->pf_device->dev.kobj,
1097 &fujitsupf_attribute_group);
1098 if (ret)
1099 goto fail_platform_device2;
1100
1101 /* Register backlight stuff */
1102
1103 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
1104 struct backlight_properties props;
1105
1106 memset(&props, 0, sizeof(struct backlight_properties));
1107 max_brightness = fujitsu->max_brightness;
1108 props.type = BACKLIGHT_PLATFORM;
1109 props.max_brightness = max_brightness - 1;
1110 fujitsu->bl_device = backlight_device_register("fujitsu-laptop",
1111 NULL, NULL,
1112 &fujitsubl_ops,
1113 &props);
1114 if (IS_ERR(fujitsu->bl_device)) {
1115 ret = PTR_ERR(fujitsu->bl_device);
1116 fujitsu->bl_device = NULL;
1117 goto fail_sysfs_group;
1118 }
1119 fujitsu->bl_device->props.brightness = fujitsu->brightness_level;
1120 }
1121
1122 ret = platform_driver_register(&fujitsupf_driver);
1123 if (ret)
1124 goto fail_backlight;
1125
1126 /* Register hotkey driver */
1127
1128 fujitsu_hotkey = kzalloc(sizeof(struct fujitsu_hotkey_t), GFP_KERNEL);
1129 if (!fujitsu_hotkey) {
1130 ret = -ENOMEM;
1131 goto fail_hotkey;
1132 }
1133
1134 result = acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver);
1135 if (result < 0) {
1136 ret = -ENODEV;
1137 goto fail_hotkey1;
1138 }
1139
1140 /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */
1141 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
1142 if (call_fext_func(FUNC_BACKLIGHT, 0x2, 0x4, 0x0) == 3)
1143 fujitsu->bl_device->props.power = FB_BLANK_POWERDOWN;
1144 else
1145 fujitsu->bl_device->props.power = FB_BLANK_UNBLANK;
1146 }
1147
1148 pr_info("driver " FUJITSU_DRIVER_VERSION " successfully loaded\n");
1149
1150 return 0;
1151
1152 fail_hotkey1:
1153 kfree(fujitsu_hotkey);
1154 fail_hotkey:
1155 platform_driver_unregister(&fujitsupf_driver);
1156 fail_backlight:
1157 backlight_device_unregister(fujitsu->bl_device);
1158 fail_sysfs_group:
1159 sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
1160 &fujitsupf_attribute_group);
1161 fail_platform_device2:
1162 platform_device_del(fujitsu->pf_device);
1163 fail_platform_device1:
1164 platform_device_put(fujitsu->pf_device);
1165 fail_platform_driver:
1166 acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1167 fail_acpi:
1168 kfree(fujitsu);
1169
1170 return ret;
1171 }
1172
fujitsu_cleanup(void)1173 static void __exit fujitsu_cleanup(void)
1174 {
1175 acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver);
1176
1177 kfree(fujitsu_hotkey);
1178
1179 platform_driver_unregister(&fujitsupf_driver);
1180
1181 backlight_device_unregister(fujitsu->bl_device);
1182
1183 sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
1184 &fujitsupf_attribute_group);
1185
1186 platform_device_unregister(fujitsu->pf_device);
1187
1188 acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1189
1190 kfree(fujitsu);
1191
1192 pr_info("driver unloaded\n");
1193 }
1194
1195 module_init(fujitsu_init);
1196 module_exit(fujitsu_cleanup);
1197
1198 module_param(use_alt_lcd_levels, uint, 0644);
1199 MODULE_PARM_DESC(use_alt_lcd_levels,
1200 "Use alternative interface for lcd_levels (needed for Lifebook s6410).");
1201 module_param(disable_brightness_adjust, uint, 0644);
1202 MODULE_PARM_DESC(disable_brightness_adjust, "Disable brightness adjustment .");
1203 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
1204 module_param_named(debug, dbg_level, uint, 0644);
1205 MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
1206 #endif
1207
1208 MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon");
1209 MODULE_DESCRIPTION("Fujitsu laptop extras support");
1210 MODULE_VERSION(FUJITSU_DRIVER_VERSION);
1211 MODULE_LICENSE("GPL");
1212
1213 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
1214 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*");
1215 MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");
1216