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2d24c490 RG |
1 | /* |
2 | * Copyright (C) 2006-2012 Robert Gerlach <khnz@gmx.de> | |
3 | * Copyright (C) 2005-2006 Jan Rychter <jan@rychter.com> | |
4 | * | |
5 | * You can redistribute and/or modify this program under the terms of the | |
6 | * GNU General Public License version 2 as published by the Free Software | |
7 | * Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General | |
12 | * Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
15 | * with this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 59 Temple Place Suite 330, Boston, MA 02111-1307, USA. | |
17 | */ | |
18 | ||
32be65be RG |
19 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
20 | ||
2d24c490 RG |
21 | #include <linux/kernel.h> |
22 | #include <linux/module.h> | |
23 | #include <linux/init.h> | |
24 | #include <linux/bitops.h> | |
25 | #include <linux/io.h> | |
26 | #include <linux/ioport.h> | |
27 | #include <linux/acpi.h> | |
28 | #include <linux/device.h> | |
29 | #include <linux/interrupt.h> | |
30 | #include <linux/input.h> | |
31 | #include <linux/delay.h> | |
32 | #include <linux/dmi.h> | |
33 | ||
34 | #define MODULENAME "fujitsu-tablet" | |
35 | ||
36 | #define ACPI_FUJITSU_CLASS "fujitsu" | |
37 | ||
38 | #define INVERT_TABLET_MODE_BIT 0x01 | |
14b234b1 RG |
39 | #define INVERT_DOCK_STATE_BIT 0x02 |
40 | #define FORCE_TABLET_MODE_IF_UNDOCK 0x04 | |
2d24c490 RG |
41 | |
42 | #define KEYMAP_LEN 16 | |
43 | ||
44 | static const struct acpi_device_id fujitsu_ids[] = { | |
45 | { .id = "FUJ02BD" }, | |
46 | { .id = "FUJ02BF" }, | |
47 | { .id = "" } | |
48 | }; | |
49 | ||
50 | struct fujitsu_config { | |
51 | unsigned short keymap[KEYMAP_LEN]; | |
52 | unsigned int quirks; | |
53 | }; | |
54 | ||
55 | static unsigned short keymap_Lifebook_Tseries[KEYMAP_LEN] __initconst = { | |
56 | KEY_RESERVED, | |
57 | KEY_RESERVED, | |
58 | KEY_RESERVED, | |
59 | KEY_RESERVED, | |
60 | KEY_SCROLLDOWN, | |
61 | KEY_SCROLLUP, | |
62 | KEY_DIRECTION, | |
63 | KEY_LEFTCTRL, | |
64 | KEY_BRIGHTNESSUP, | |
65 | KEY_BRIGHTNESSDOWN, | |
66 | KEY_BRIGHTNESS_ZERO, | |
67 | KEY_RESERVED, | |
68 | KEY_RESERVED, | |
69 | KEY_RESERVED, | |
70 | KEY_RESERVED, | |
71 | KEY_LEFTALT | |
72 | }; | |
73 | ||
74 | static unsigned short keymap_Lifebook_U810[KEYMAP_LEN] __initconst = { | |
75 | KEY_RESERVED, | |
76 | KEY_RESERVED, | |
77 | KEY_RESERVED, | |
78 | KEY_RESERVED, | |
79 | KEY_PROG1, | |
80 | KEY_PROG2, | |
81 | KEY_DIRECTION, | |
82 | KEY_RESERVED, | |
83 | KEY_RESERVED, | |
84 | KEY_RESERVED, | |
85 | KEY_UP, | |
86 | KEY_DOWN, | |
87 | KEY_RESERVED, | |
88 | KEY_RESERVED, | |
89 | KEY_LEFTCTRL, | |
90 | KEY_LEFTALT | |
91 | }; | |
92 | ||
93 | static unsigned short keymap_Stylistic_Tseries[KEYMAP_LEN] __initconst = { | |
94 | KEY_RESERVED, | |
95 | KEY_RESERVED, | |
96 | KEY_RESERVED, | |
97 | KEY_RESERVED, | |
98 | KEY_PRINT, | |
99 | KEY_BACKSPACE, | |
100 | KEY_SPACE, | |
101 | KEY_ENTER, | |
102 | KEY_BRIGHTNESSUP, | |
103 | KEY_BRIGHTNESSDOWN, | |
104 | KEY_DOWN, | |
105 | KEY_UP, | |
106 | KEY_SCROLLUP, | |
107 | KEY_SCROLLDOWN, | |
108 | KEY_LEFTCTRL, | |
109 | KEY_LEFTALT | |
110 | }; | |
111 | ||
112 | static unsigned short keymap_Stylistic_ST5xxx[KEYMAP_LEN] __initconst = { | |
113 | KEY_RESERVED, | |
114 | KEY_RESERVED, | |
115 | KEY_RESERVED, | |
116 | KEY_RESERVED, | |
117 | KEY_MAIL, | |
118 | KEY_DIRECTION, | |
119 | KEY_ESC, | |
120 | KEY_ENTER, | |
121 | KEY_BRIGHTNESSUP, | |
122 | KEY_BRIGHTNESSDOWN, | |
123 | KEY_DOWN, | |
124 | KEY_UP, | |
125 | KEY_SCROLLUP, | |
126 | KEY_SCROLLDOWN, | |
127 | KEY_LEFTCTRL, | |
128 | KEY_LEFTALT | |
129 | }; | |
130 | ||
131 | static struct { | |
132 | struct input_dev *idev; | |
133 | struct fujitsu_config config; | |
134 | unsigned long prev_keymask; | |
135 | ||
136 | char phys[21]; | |
137 | ||
138 | int irq; | |
139 | int io_base; | |
140 | int io_length; | |
141 | } fujitsu; | |
142 | ||
143 | static u8 fujitsu_ack(void) | |
144 | { | |
145 | return inb(fujitsu.io_base + 2); | |
146 | } | |
147 | ||
148 | static u8 fujitsu_status(void) | |
149 | { | |
150 | return inb(fujitsu.io_base + 6); | |
151 | } | |
152 | ||
153 | static u8 fujitsu_read_register(const u8 addr) | |
154 | { | |
155 | outb(addr, fujitsu.io_base); | |
156 | return inb(fujitsu.io_base + 4); | |
157 | } | |
158 | ||
159 | static void fujitsu_send_state(void) | |
160 | { | |
161 | int state; | |
162 | int dock, tablet_mode; | |
163 | ||
164 | state = fujitsu_read_register(0xdd); | |
165 | ||
166 | dock = state & 0x02; | |
14b234b1 RG |
167 | if (fujitsu.config.quirks & INVERT_DOCK_STATE_BIT) |
168 | dock = !dock; | |
2d24c490 RG |
169 | |
170 | if ((fujitsu.config.quirks & FORCE_TABLET_MODE_IF_UNDOCK) && (!dock)) { | |
171 | tablet_mode = 1; | |
172 | } else{ | |
173 | tablet_mode = state & 0x01; | |
174 | if (fujitsu.config.quirks & INVERT_TABLET_MODE_BIT) | |
175 | tablet_mode = !tablet_mode; | |
176 | } | |
177 | ||
178 | input_report_switch(fujitsu.idev, SW_DOCK, dock); | |
179 | input_report_switch(fujitsu.idev, SW_TABLET_MODE, tablet_mode); | |
180 | input_sync(fujitsu.idev); | |
181 | } | |
182 | ||
183 | static void fujitsu_reset(void) | |
184 | { | |
185 | int timeout = 50; | |
186 | ||
187 | fujitsu_ack(); | |
188 | ||
189 | while ((fujitsu_status() & 0x02) && (--timeout)) | |
190 | msleep(20); | |
191 | ||
192 | fujitsu_send_state(); | |
193 | } | |
194 | ||
195 | static int __devinit input_fujitsu_setup(struct device *parent, | |
196 | const char *name, const char *phys) | |
197 | { | |
198 | struct input_dev *idev; | |
199 | int error; | |
200 | int i; | |
201 | ||
202 | idev = input_allocate_device(); | |
203 | if (!idev) | |
204 | return -ENOMEM; | |
205 | ||
206 | idev->dev.parent = parent; | |
207 | idev->phys = phys; | |
208 | idev->name = name; | |
209 | idev->id.bustype = BUS_HOST; | |
210 | idev->id.vendor = 0x1734; /* Fujitsu Siemens Computer GmbH */ | |
211 | idev->id.product = 0x0001; | |
212 | idev->id.version = 0x0101; | |
213 | ||
214 | idev->keycode = fujitsu.config.keymap; | |
215 | idev->keycodesize = sizeof(fujitsu.config.keymap[0]); | |
216 | idev->keycodemax = ARRAY_SIZE(fujitsu.config.keymap); | |
217 | ||
218 | __set_bit(EV_REP, idev->evbit); | |
219 | ||
220 | for (i = 0; i < ARRAY_SIZE(fujitsu.config.keymap); i++) | |
221 | if (fujitsu.config.keymap[i]) | |
222 | input_set_capability(idev, EV_KEY, fujitsu.config.keymap[i]); | |
223 | ||
224 | input_set_capability(idev, EV_MSC, MSC_SCAN); | |
225 | ||
226 | input_set_capability(idev, EV_SW, SW_DOCK); | |
227 | input_set_capability(idev, EV_SW, SW_TABLET_MODE); | |
228 | ||
2d24c490 RG |
229 | error = input_register_device(idev); |
230 | if (error) { | |
231 | input_free_device(idev); | |
232 | return error; | |
233 | } | |
234 | ||
235 | fujitsu.idev = idev; | |
236 | return 0; | |
237 | } | |
238 | ||
239 | static void input_fujitsu_remove(void) | |
240 | { | |
241 | input_unregister_device(fujitsu.idev); | |
242 | } | |
243 | ||
244 | static irqreturn_t fujitsu_interrupt(int irq, void *dev_id) | |
245 | { | |
246 | unsigned long keymask, changed; | |
247 | unsigned int keycode; | |
248 | int pressed; | |
249 | int i; | |
250 | ||
251 | if (unlikely(!(fujitsu_status() & 0x01))) | |
252 | return IRQ_NONE; | |
253 | ||
254 | fujitsu_send_state(); | |
255 | ||
256 | keymask = fujitsu_read_register(0xde); | |
257 | keymask |= fujitsu_read_register(0xdf) << 8; | |
258 | keymask ^= 0xffff; | |
259 | ||
260 | changed = keymask ^ fujitsu.prev_keymask; | |
261 | if (changed) { | |
262 | fujitsu.prev_keymask = keymask; | |
263 | ||
264 | for_each_set_bit(i, &changed, KEYMAP_LEN) { | |
265 | keycode = fujitsu.config.keymap[i]; | |
266 | pressed = keymask & changed & BIT(i); | |
267 | ||
268 | if (pressed) | |
269 | input_event(fujitsu.idev, EV_MSC, MSC_SCAN, i); | |
270 | ||
271 | input_report_key(fujitsu.idev, keycode, pressed); | |
272 | input_sync(fujitsu.idev); | |
273 | } | |
274 | } | |
275 | ||
276 | fujitsu_ack(); | |
277 | return IRQ_HANDLED; | |
278 | } | |
279 | ||
14b234b1 | 280 | static void __devinit fujitsu_dmi_common(const struct dmi_system_id *dmi) |
2d24c490 | 281 | { |
32be65be | 282 | pr_info("%s\n", dmi->ident); |
2d24c490 RG |
283 | memcpy(fujitsu.config.keymap, dmi->driver_data, |
284 | sizeof(fujitsu.config.keymap)); | |
14b234b1 RG |
285 | } |
286 | ||
287 | static int __devinit fujitsu_dmi_lifebook(const struct dmi_system_id *dmi) | |
288 | { | |
289 | fujitsu_dmi_common(dmi); | |
290 | fujitsu.config.quirks |= INVERT_TABLET_MODE_BIT; | |
2d24c490 RG |
291 | return 1; |
292 | } | |
293 | ||
294 | static int __devinit fujitsu_dmi_stylistic(const struct dmi_system_id *dmi) | |
295 | { | |
14b234b1 | 296 | fujitsu_dmi_common(dmi); |
2d24c490 | 297 | fujitsu.config.quirks |= FORCE_TABLET_MODE_IF_UNDOCK; |
14b234b1 | 298 | fujitsu.config.quirks |= INVERT_DOCK_STATE_BIT; |
2d24c490 RG |
299 | return 1; |
300 | } | |
301 | ||
302 | static struct dmi_system_id dmi_ids[] __initconst = { | |
303 | { | |
14b234b1 | 304 | .callback = fujitsu_dmi_lifebook, |
2d24c490 RG |
305 | .ident = "Fujitsu Siemens P/T Series", |
306 | .matches = { | |
307 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), | |
308 | DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK") | |
309 | }, | |
310 | .driver_data = keymap_Lifebook_Tseries | |
311 | }, | |
312 | { | |
14b234b1 | 313 | .callback = fujitsu_dmi_lifebook, |
2d24c490 RG |
314 | .ident = "Fujitsu Lifebook T Series", |
315 | .matches = { | |
316 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), | |
317 | DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook T") | |
318 | }, | |
319 | .driver_data = keymap_Lifebook_Tseries | |
320 | }, | |
321 | { | |
322 | .callback = fujitsu_dmi_stylistic, | |
323 | .ident = "Fujitsu Siemens Stylistic T Series", | |
324 | .matches = { | |
325 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), | |
326 | DMI_MATCH(DMI_PRODUCT_NAME, "Stylistic T") | |
327 | }, | |
328 | .driver_data = keymap_Stylistic_Tseries | |
329 | }, | |
330 | { | |
14b234b1 | 331 | .callback = fujitsu_dmi_lifebook, |
2d24c490 RG |
332 | .ident = "Fujitsu LifeBook U810", |
333 | .matches = { | |
334 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), | |
335 | DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook U810") | |
336 | }, | |
337 | .driver_data = keymap_Lifebook_U810 | |
338 | }, | |
339 | { | |
340 | .callback = fujitsu_dmi_stylistic, | |
341 | .ident = "Fujitsu Siemens Stylistic ST5xxx Series", | |
342 | .matches = { | |
343 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), | |
344 | DMI_MATCH(DMI_PRODUCT_NAME, "STYLISTIC ST5") | |
345 | }, | |
346 | .driver_data = keymap_Stylistic_ST5xxx | |
347 | }, | |
348 | { | |
349 | .callback = fujitsu_dmi_stylistic, | |
350 | .ident = "Fujitsu Siemens Stylistic ST5xxx Series", | |
351 | .matches = { | |
352 | DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), | |
353 | DMI_MATCH(DMI_PRODUCT_NAME, "Stylistic ST5") | |
354 | }, | |
355 | .driver_data = keymap_Stylistic_ST5xxx | |
356 | }, | |
357 | { | |
14b234b1 | 358 | .callback = fujitsu_dmi_lifebook, |
2d24c490 RG |
359 | .ident = "Unknown (using defaults)", |
360 | .matches = { | |
361 | DMI_MATCH(DMI_SYS_VENDOR, ""), | |
362 | DMI_MATCH(DMI_PRODUCT_NAME, "") | |
363 | }, | |
364 | .driver_data = keymap_Lifebook_Tseries | |
365 | }, | |
366 | { NULL } | |
367 | }; | |
368 | ||
369 | static acpi_status __devinit | |
370 | fujitsu_walk_resources(struct acpi_resource *res, void *data) | |
371 | { | |
372 | switch (res->type) { | |
373 | case ACPI_RESOURCE_TYPE_IRQ: | |
374 | fujitsu.irq = res->data.irq.interrupts[0]; | |
375 | return AE_OK; | |
376 | ||
377 | case ACPI_RESOURCE_TYPE_IO: | |
378 | fujitsu.io_base = res->data.io.minimum; | |
379 | fujitsu.io_length = res->data.io.address_length; | |
380 | return AE_OK; | |
381 | ||
382 | case ACPI_RESOURCE_TYPE_END_TAG: | |
383 | if (fujitsu.irq && fujitsu.io_base) | |
384 | return AE_OK; | |
385 | else | |
386 | return AE_NOT_FOUND; | |
387 | ||
388 | default: | |
389 | return AE_ERROR; | |
390 | } | |
391 | } | |
392 | ||
393 | static int __devinit acpi_fujitsu_add(struct acpi_device *adev) | |
394 | { | |
395 | acpi_status status; | |
396 | int error; | |
397 | ||
398 | if (!adev) | |
399 | return -EINVAL; | |
400 | ||
401 | status = acpi_walk_resources(adev->handle, METHOD_NAME__CRS, | |
402 | fujitsu_walk_resources, NULL); | |
403 | if (ACPI_FAILURE(status) || !fujitsu.irq || !fujitsu.io_base) | |
404 | return -ENODEV; | |
405 | ||
406 | sprintf(acpi_device_name(adev), "Fujitsu %s", acpi_device_hid(adev)); | |
407 | sprintf(acpi_device_class(adev), "%s", ACPI_FUJITSU_CLASS); | |
408 | ||
409 | snprintf(fujitsu.phys, sizeof(fujitsu.phys), | |
410 | "%s/input0", acpi_device_hid(adev)); | |
411 | ||
412 | error = input_fujitsu_setup(&adev->dev, | |
413 | acpi_device_name(adev), fujitsu.phys); | |
414 | if (error) | |
415 | return error; | |
416 | ||
417 | if (!request_region(fujitsu.io_base, fujitsu.io_length, MODULENAME)) { | |
418 | input_fujitsu_remove(); | |
419 | return -EBUSY; | |
420 | } | |
421 | ||
422 | fujitsu_reset(); | |
423 | ||
424 | error = request_irq(fujitsu.irq, fujitsu_interrupt, | |
425 | IRQF_SHARED, MODULENAME, fujitsu_interrupt); | |
426 | if (error) { | |
427 | release_region(fujitsu.io_base, fujitsu.io_length); | |
428 | input_fujitsu_remove(); | |
429 | return error; | |
430 | } | |
431 | ||
432 | return 0; | |
433 | } | |
434 | ||
435 | static int __devexit acpi_fujitsu_remove(struct acpi_device *adev, int type) | |
436 | { | |
437 | free_irq(fujitsu.irq, fujitsu_interrupt); | |
438 | release_region(fujitsu.io_base, fujitsu.io_length); | |
439 | input_fujitsu_remove(); | |
440 | return 0; | |
441 | } | |
442 | ||
3567a4e2 | 443 | #ifdef CONFIG_PM_SLEEP |
d26c844b | 444 | static int acpi_fujitsu_resume(struct device *dev) |
2d24c490 RG |
445 | { |
446 | fujitsu_reset(); | |
447 | return 0; | |
448 | } | |
3567a4e2 | 449 | #endif |
2d24c490 | 450 | |
d26c844b RW |
451 | static SIMPLE_DEV_PM_OPS(acpi_fujitsu_pm, NULL, acpi_fujitsu_resume); |
452 | ||
2d24c490 RG |
453 | static struct acpi_driver acpi_fujitsu_driver = { |
454 | .name = MODULENAME, | |
455 | .class = "hotkey", | |
456 | .ids = fujitsu_ids, | |
457 | .ops = { | |
458 | .add = acpi_fujitsu_add, | |
459 | .remove = acpi_fujitsu_remove, | |
d26c844b RW |
460 | }, |
461 | .drv.pm = &acpi_fujitsu_pm, | |
2d24c490 RG |
462 | }; |
463 | ||
464 | static int __init fujitsu_module_init(void) | |
465 | { | |
466 | int error; | |
467 | ||
468 | dmi_check_system(dmi_ids); | |
469 | ||
470 | error = acpi_bus_register_driver(&acpi_fujitsu_driver); | |
471 | if (error) | |
472 | return error; | |
473 | ||
474 | return 0; | |
475 | } | |
476 | ||
477 | static void __exit fujitsu_module_exit(void) | |
478 | { | |
479 | acpi_bus_unregister_driver(&acpi_fujitsu_driver); | |
480 | } | |
481 | ||
482 | module_init(fujitsu_module_init); | |
483 | module_exit(fujitsu_module_exit); | |
484 | ||
485 | MODULE_AUTHOR("Robert Gerlach <khnz@gmx.de>"); | |
486 | MODULE_DESCRIPTION("Fujitsu tablet pc extras driver"); | |
487 | MODULE_LICENSE("GPL"); | |
14b234b1 | 488 | MODULE_VERSION("2.5"); |
2d24c490 RG |
489 | |
490 | MODULE_DEVICE_TABLE(acpi, fujitsu_ids); |