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6
7#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
8
9#include <linux/kernel.h>
10#include <linux/module.h>
11#include <linux/init.h>
12#include <linux/bitops.h>
13#include <linux/io.h>
14#include <linux/ioport.h>
15#include <linux/acpi.h>
16#include <linux/device.h>
17#include <linux/interrupt.h>
18#include <linux/input.h>
19#include <linux/delay.h>
20#include <linux/dmi.h>
21
22#define MODULENAME "fujitsu-tablet"
23
24#define ACPI_FUJITSU_CLASS "fujitsu"
25
26#define INVERT_TABLET_MODE_BIT 0x01
27#define INVERT_DOCK_STATE_BIT 0x02
28#define FORCE_TABLET_MODE_IF_UNDOCK 0x04
29
30#define KEYMAP_LEN 16
31
32static const struct acpi_device_id fujitsu_ids[] = {
33 { .id = "FUJ02BD" },
34 { .id = "FUJ02BF" },
35 { .id = "" }
36};
37
38struct fujitsu_config {
39 unsigned short keymap[KEYMAP_LEN];
40 unsigned int quirks;
41};
42
43static unsigned short keymap_Lifebook_Tseries[KEYMAP_LEN] __initdata = {
44 KEY_RESERVED,
45 KEY_RESERVED,
46 KEY_RESERVED,
47 KEY_RESERVED,
48 KEY_SCROLLDOWN,
49 KEY_SCROLLUP,
50 KEY_ROTATE_DISPLAY,
51 KEY_LEFTCTRL,
52 KEY_BRIGHTNESSUP,
53 KEY_BRIGHTNESSDOWN,
54 KEY_BRIGHTNESS_ZERO,
55 KEY_RESERVED,
56 KEY_RESERVED,
57 KEY_RESERVED,
58 KEY_RESERVED,
59 KEY_LEFTALT
60};
61
62static unsigned short keymap_Lifebook_T901[KEYMAP_LEN] __initdata = {
63 KEY_RESERVED,
64 KEY_RESERVED,
65 KEY_RESERVED,
66 KEY_RESERVED,
67 KEY_SCROLLDOWN,
68 KEY_SCROLLUP,
69 KEY_CYCLEWINDOWS,
70 KEY_LEFTCTRL,
71 KEY_RESERVED,
72 KEY_RESERVED,
73 KEY_RESERVED,
74 KEY_RESERVED,
75 KEY_RESERVED,
76 KEY_RESERVED,
77 KEY_RESERVED,
78 KEY_LEFTMETA
79};
80
81static unsigned short keymap_Lifebook_T902[KEYMAP_LEN] __initdata = {
82 KEY_RESERVED,
83 KEY_VOLUMEDOWN,
84 KEY_VOLUMEUP,
85 KEY_CYCLEWINDOWS,
86 KEY_PROG1,
87 KEY_PROG2,
88 KEY_LEFTMETA,
89 KEY_RESERVED,
90 KEY_RESERVED,
91 KEY_RESERVED,
92 KEY_RESERVED,
93 KEY_RESERVED,
94 KEY_RESERVED,
95 KEY_RESERVED,
96 KEY_RESERVED,
97 KEY_RESERVED,
98};
99
100static unsigned short keymap_Lifebook_U810[KEYMAP_LEN] __initdata = {
101 KEY_RESERVED,
102 KEY_RESERVED,
103 KEY_RESERVED,
104 KEY_RESERVED,
105 KEY_PROG1,
106 KEY_PROG2,
107 KEY_ROTATE_DISPLAY,
108 KEY_RESERVED,
109 KEY_RESERVED,
110 KEY_RESERVED,
111 KEY_UP,
112 KEY_DOWN,
113 KEY_RESERVED,
114 KEY_RESERVED,
115 KEY_LEFTCTRL,
116 KEY_LEFTALT
117};
118
119static unsigned short keymap_Stylistic_Tseries[KEYMAP_LEN] __initdata = {
120 KEY_RESERVED,
121 KEY_RESERVED,
122 KEY_RESERVED,
123 KEY_RESERVED,
124 KEY_PRINT,
125 KEY_BACKSPACE,
126 KEY_SPACE,
127 KEY_ENTER,
128 KEY_BRIGHTNESSUP,
129 KEY_BRIGHTNESSDOWN,
130 KEY_DOWN,
131 KEY_UP,
132 KEY_SCROLLUP,
133 KEY_SCROLLDOWN,
134 KEY_LEFTCTRL,
135 KEY_LEFTALT
136};
137
138static unsigned short keymap_Stylistic_ST5xxx[KEYMAP_LEN] __initdata = {
139 KEY_RESERVED,
140 KEY_RESERVED,
141 KEY_RESERVED,
142 KEY_RESERVED,
143 KEY_MAIL,
144 KEY_ROTATE_DISPLAY,
145 KEY_ESC,
146 KEY_ENTER,
147 KEY_BRIGHTNESSUP,
148 KEY_BRIGHTNESSDOWN,
149 KEY_DOWN,
150 KEY_UP,
151 KEY_SCROLLUP,
152 KEY_SCROLLDOWN,
153 KEY_LEFTCTRL,
154 KEY_LEFTALT
155};
156
157static struct {
158 struct input_dev *idev;
159 struct fujitsu_config config;
160 unsigned long prev_keymask;
161
162 char phys[21];
163
164 int irq;
165 int io_base;
166 int io_length;
167} fujitsu;
168
169static u8 fujitsu_ack(void)
170{
171 return inb(fujitsu.io_base + 2);
172}
173
174static u8 fujitsu_status(void)
175{
176 return inb(fujitsu.io_base + 6);
177}
178
179static u8 fujitsu_read_register(const u8 addr)
180{
181 outb(addr, fujitsu.io_base);
182 return inb(fujitsu.io_base + 4);
183}
184
185static void fujitsu_send_state(void)
186{
187 int state;
188 int dock, tablet_mode;
189
190 state = fujitsu_read_register(0xdd);
191
192 dock = state & 0x02;
193 if (fujitsu.config.quirks & INVERT_DOCK_STATE_BIT)
194 dock = !dock;
195
196 if ((fujitsu.config.quirks & FORCE_TABLET_MODE_IF_UNDOCK) && (!dock)) {
197 tablet_mode = 1;
198 } else{
199 tablet_mode = state & 0x01;
200 if (fujitsu.config.quirks & INVERT_TABLET_MODE_BIT)
201 tablet_mode = !tablet_mode;
202 }
203
204 input_report_switch(fujitsu.idev, SW_DOCK, dock);
205 input_report_switch(fujitsu.idev, SW_TABLET_MODE, tablet_mode);
206 input_sync(fujitsu.idev);
207}
208
209static void fujitsu_reset(void)
210{
211 int timeout = 50;
212
213 fujitsu_ack();
214
215 while ((fujitsu_status() & 0x02) && (--timeout))
216 msleep(20);
217
218 fujitsu_send_state();
219}
220
221static int input_fujitsu_setup(struct device *parent, const char *name,
222 const char *phys)
223{
224 struct input_dev *idev;
225 int error;
226 int i;
227
228 idev = input_allocate_device();
229 if (!idev)
230 return -ENOMEM;
231
232 idev->dev.parent = parent;
233 idev->phys = phys;
234 idev->name = name;
235 idev->id.bustype = BUS_HOST;
236 idev->id.vendor = 0x1734;
237 idev->id.product = 0x0001;
238 idev->id.version = 0x0101;
239
240 idev->keycode = fujitsu.config.keymap;
241 idev->keycodesize = sizeof(fujitsu.config.keymap[0]);
242 idev->keycodemax = ARRAY_SIZE(fujitsu.config.keymap);
243
244 __set_bit(EV_REP, idev->evbit);
245
246 for (i = 0; i < ARRAY_SIZE(fujitsu.config.keymap); i++)
247 if (fujitsu.config.keymap[i])
248 input_set_capability(idev, EV_KEY, fujitsu.config.keymap[i]);
249
250 input_set_capability(idev, EV_MSC, MSC_SCAN);
251
252 input_set_capability(idev, EV_SW, SW_DOCK);
253 input_set_capability(idev, EV_SW, SW_TABLET_MODE);
254
255 error = input_register_device(idev);
256 if (error) {
257 input_free_device(idev);
258 return error;
259 }
260
261 fujitsu.idev = idev;
262 return 0;
263}
264
265static void input_fujitsu_remove(void)
266{
267 input_unregister_device(fujitsu.idev);
268}
269
270static irqreturn_t fujitsu_interrupt(int irq, void *dev_id)
271{
272 unsigned long keymask, changed;
273 unsigned int keycode;
274 int pressed;
275 int i;
276
277 if (unlikely(!(fujitsu_status() & 0x01)))
278 return IRQ_NONE;
279
280 fujitsu_send_state();
281
282 keymask = fujitsu_read_register(0xde);
283 keymask |= fujitsu_read_register(0xdf) << 8;
284 keymask ^= 0xffff;
285
286 changed = keymask ^ fujitsu.prev_keymask;
287 if (changed) {
288 fujitsu.prev_keymask = keymask;
289
290 for_each_set_bit(i, &changed, KEYMAP_LEN) {
291 keycode = fujitsu.config.keymap[i];
292 pressed = keymask & changed & BIT(i);
293
294 if (pressed)
295 input_event(fujitsu.idev, EV_MSC, MSC_SCAN, i);
296
297 input_report_key(fujitsu.idev, keycode, pressed);
298 input_sync(fujitsu.idev);
299 }
300 }
301
302 fujitsu_ack();
303 return IRQ_HANDLED;
304}
305
306static void __init fujitsu_dmi_common(const struct dmi_system_id *dmi)
307{
308 pr_info("%s\n", dmi->ident);
309 memcpy(fujitsu.config.keymap, dmi->driver_data,
310 sizeof(fujitsu.config.keymap));
311}
312
313static int __init fujitsu_dmi_lifebook(const struct dmi_system_id *dmi)
314{
315 fujitsu_dmi_common(dmi);
316 fujitsu.config.quirks |= INVERT_TABLET_MODE_BIT;
317 return 1;
318}
319
320static int __init fujitsu_dmi_stylistic(const struct dmi_system_id *dmi)
321{
322 fujitsu_dmi_common(dmi);
323 fujitsu.config.quirks |= FORCE_TABLET_MODE_IF_UNDOCK;
324 fujitsu.config.quirks |= INVERT_DOCK_STATE_BIT;
325 return 1;
326}
327
328static const struct dmi_system_id dmi_ids[] __initconst = {
329 {
330 .callback = fujitsu_dmi_lifebook,
331 .ident = "Fujitsu Lifebook T901",
332 .matches = {
333 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
334 DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook T901")
335 },
336 .driver_data = keymap_Lifebook_T901
337 },
338 {
339 .callback = fujitsu_dmi_lifebook,
340 .ident = "Fujitsu Lifebook T901",
341 .matches = {
342 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
343 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T901")
344 },
345 .driver_data = keymap_Lifebook_T901
346 },
347 {
348 .callback = fujitsu_dmi_lifebook,
349 .ident = "Fujitsu Lifebook T902",
350 .matches = {
351 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
352 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T902")
353 },
354 .driver_data = keymap_Lifebook_T902
355 },
356 {
357 .callback = fujitsu_dmi_lifebook,
358 .ident = "Fujitsu Siemens P/T Series",
359 .matches = {
360 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
361 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK")
362 },
363 .driver_data = keymap_Lifebook_Tseries
364 },
365 {
366 .callback = fujitsu_dmi_lifebook,
367 .ident = "Fujitsu Lifebook T Series",
368 .matches = {
369 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
370 DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook T")
371 },
372 .driver_data = keymap_Lifebook_Tseries
373 },
374 {
375 .callback = fujitsu_dmi_stylistic,
376 .ident = "Fujitsu Siemens Stylistic T Series",
377 .matches = {
378 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
379 DMI_MATCH(DMI_PRODUCT_NAME, "Stylistic T")
380 },
381 .driver_data = keymap_Stylistic_Tseries
382 },
383 {
384 .callback = fujitsu_dmi_lifebook,
385 .ident = "Fujitsu LifeBook U810",
386 .matches = {
387 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
388 DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook U810")
389 },
390 .driver_data = keymap_Lifebook_U810
391 },
392 {
393 .callback = fujitsu_dmi_stylistic,
394 .ident = "Fujitsu Siemens Stylistic ST5xxx Series",
395 .matches = {
396 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
397 DMI_MATCH(DMI_PRODUCT_NAME, "STYLISTIC ST5")
398 },
399 .driver_data = keymap_Stylistic_ST5xxx
400 },
401 {
402 .callback = fujitsu_dmi_stylistic,
403 .ident = "Fujitsu Siemens Stylistic ST5xxx Series",
404 .matches = {
405 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
406 DMI_MATCH(DMI_PRODUCT_NAME, "Stylistic ST5")
407 },
408 .driver_data = keymap_Stylistic_ST5xxx
409 },
410 {
411 .callback = fujitsu_dmi_lifebook,
412 .ident = "Unknown (using defaults)",
413 .matches = {
414 DMI_MATCH(DMI_SYS_VENDOR, ""),
415 DMI_MATCH(DMI_PRODUCT_NAME, "")
416 },
417 .driver_data = keymap_Lifebook_Tseries
418 },
419 { NULL }
420};
421
422static acpi_status fujitsu_walk_resources(struct acpi_resource *res, void *data)
423{
424 switch (res->type) {
425 case ACPI_RESOURCE_TYPE_IRQ:
426 fujitsu.irq = res->data.irq.interrupts[0];
427 return AE_OK;
428
429 case ACPI_RESOURCE_TYPE_IO:
430 fujitsu.io_base = res->data.io.minimum;
431 fujitsu.io_length = res->data.io.address_length;
432 return AE_OK;
433
434 case ACPI_RESOURCE_TYPE_END_TAG:
435 if (fujitsu.irq && fujitsu.io_base)
436 return AE_OK;
437 else
438 return AE_NOT_FOUND;
439
440 default:
441 return AE_ERROR;
442 }
443}
444
445static int acpi_fujitsu_add(struct acpi_device *adev)
446{
447 acpi_status status;
448 int error;
449
450 if (!adev)
451 return -EINVAL;
452
453 status = acpi_walk_resources(adev->handle, METHOD_NAME__CRS,
454 fujitsu_walk_resources, NULL);
455 if (ACPI_FAILURE(status) || !fujitsu.irq || !fujitsu.io_base)
456 return -ENODEV;
457
458 sprintf(acpi_device_name(adev), "Fujitsu %s", acpi_device_hid(adev));
459 sprintf(acpi_device_class(adev), "%s", ACPI_FUJITSU_CLASS);
460
461 snprintf(fujitsu.phys, sizeof(fujitsu.phys),
462 "%s/input0", acpi_device_hid(adev));
463
464 error = input_fujitsu_setup(&adev->dev,
465 acpi_device_name(adev), fujitsu.phys);
466 if (error)
467 return error;
468
469 if (!request_region(fujitsu.io_base, fujitsu.io_length, MODULENAME)) {
470 input_fujitsu_remove();
471 return -EBUSY;
472 }
473
474 fujitsu_reset();
475
476 error = request_irq(fujitsu.irq, fujitsu_interrupt,
477 IRQF_SHARED, MODULENAME, fujitsu_interrupt);
478 if (error) {
479 release_region(fujitsu.io_base, fujitsu.io_length);
480 input_fujitsu_remove();
481 return error;
482 }
483
484 return 0;
485}
486
487static int acpi_fujitsu_remove(struct acpi_device *adev)
488{
489 free_irq(fujitsu.irq, fujitsu_interrupt);
490 release_region(fujitsu.io_base, fujitsu.io_length);
491 input_fujitsu_remove();
492 return 0;
493}
494
495#ifdef CONFIG_PM_SLEEP
496static int acpi_fujitsu_resume(struct device *dev)
497{
498 fujitsu_reset();
499 return 0;
500}
501#endif
502
503static SIMPLE_DEV_PM_OPS(acpi_fujitsu_pm, NULL, acpi_fujitsu_resume);
504
505static struct acpi_driver acpi_fujitsu_driver = {
506 .name = MODULENAME,
507 .class = "hotkey",
508 .ids = fujitsu_ids,
509 .ops = {
510 .add = acpi_fujitsu_add,
511 .remove = acpi_fujitsu_remove,
512 },
513 .drv.pm = &acpi_fujitsu_pm,
514};
515
516static int __init fujitsu_module_init(void)
517{
518 int error;
519
520 dmi_check_system(dmi_ids);
521
522 error = acpi_bus_register_driver(&acpi_fujitsu_driver);
523 if (error)
524 return error;
525
526 return 0;
527}
528
529static void __exit fujitsu_module_exit(void)
530{
531 acpi_bus_unregister_driver(&acpi_fujitsu_driver);
532}
533
534module_init(fujitsu_module_init);
535module_exit(fujitsu_module_exit);
536
537MODULE_AUTHOR("Robert Gerlach <khnz@gmx.de>");
538MODULE_DESCRIPTION("Fujitsu tablet pc extras driver");
539MODULE_LICENSE("GPL");
540MODULE_VERSION("2.5");
541
542MODULE_DEVICE_TABLE(acpi, fujitsu_ids);
543
