2 * Copyright (C) 2006-2012 Robert Gerlach <khnz@gmx.de>
3 * Copyright (C) 2005-2006 Jan Rychter <jan@rychter.com>
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
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.
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.
19 #include <linux/kernel.h>
20 #include <linux/module.h>
21 #include <linux/init.h>
22 #include <linux/bitops.h>
24 #include <linux/ioport.h>
25 #include <linux/acpi.h>
26 #include <linux/device.h>
27 #include <linux/interrupt.h>
28 #include <linux/input.h>
29 #include <linux/delay.h>
30 #include <linux/dmi.h>
32 #define MODULENAME "fujitsu-tablet"
34 #define ACPI_FUJITSU_CLASS "fujitsu"
36 #define INVERT_TABLET_MODE_BIT 0x01
37 #define FORCE_TABLET_MODE_IF_UNDOCK 0x02
41 static const struct acpi_device_id fujitsu_ids[] = {
47 struct fujitsu_config {
48 unsigned short keymap[KEYMAP_LEN];
52 static unsigned short keymap_Lifebook_Tseries[KEYMAP_LEN] __initconst = {
71 static unsigned short keymap_Lifebook_U810[KEYMAP_LEN] __initconst = {
90 static unsigned short keymap_Stylistic_Tseries[KEYMAP_LEN] __initconst = {
109 static unsigned short keymap_Stylistic_ST5xxx[KEYMAP_LEN] __initconst = {
129 struct input_dev *idev;
130 struct fujitsu_config config;
131 unsigned long prev_keymask;
140 static u8 fujitsu_ack(void)
142 return inb(fujitsu.io_base + 2);
145 static u8 fujitsu_status(void)
147 return inb(fujitsu.io_base + 6);
150 static u8 fujitsu_read_register(const u8 addr)
152 outb(addr, fujitsu.io_base);
153 return inb(fujitsu.io_base + 4);
156 static void fujitsu_send_state(void)
159 int dock, tablet_mode;
161 state = fujitsu_read_register(0xdd);
165 if ((fujitsu.config.quirks & FORCE_TABLET_MODE_IF_UNDOCK) && (!dock)) {
168 tablet_mode = state & 0x01;
169 if (fujitsu.config.quirks & INVERT_TABLET_MODE_BIT)
170 tablet_mode = !tablet_mode;
173 input_report_switch(fujitsu.idev, SW_DOCK, dock);
174 input_report_switch(fujitsu.idev, SW_TABLET_MODE, tablet_mode);
175 input_sync(fujitsu.idev);
178 static void fujitsu_reset(void)
184 while ((fujitsu_status() & 0x02) && (--timeout))
187 fujitsu_send_state();
190 static int __devinit input_fujitsu_setup(struct device *parent,
191 const char *name, const char *phys)
193 struct input_dev *idev;
197 idev = input_allocate_device();
201 idev->dev.parent = parent;
204 idev->id.bustype = BUS_HOST;
205 idev->id.vendor = 0x1734; /* Fujitsu Siemens Computer GmbH */
206 idev->id.product = 0x0001;
207 idev->id.version = 0x0101;
209 idev->keycode = fujitsu.config.keymap;
210 idev->keycodesize = sizeof(fujitsu.config.keymap[0]);
211 idev->keycodemax = ARRAY_SIZE(fujitsu.config.keymap);
213 __set_bit(EV_REP, idev->evbit);
215 for (i = 0; i < ARRAY_SIZE(fujitsu.config.keymap); i++)
216 if (fujitsu.config.keymap[i])
217 input_set_capability(idev, EV_KEY, fujitsu.config.keymap[i]);
219 input_set_capability(idev, EV_MSC, MSC_SCAN);
221 input_set_capability(idev, EV_SW, SW_DOCK);
222 input_set_capability(idev, EV_SW, SW_TABLET_MODE);
224 input_set_capability(idev, EV_SW, SW_DOCK);
225 input_set_capability(idev, EV_SW, SW_TABLET_MODE);
227 error = input_register_device(idev);
229 input_free_device(idev);
237 static void input_fujitsu_remove(void)
239 input_unregister_device(fujitsu.idev);
242 static irqreturn_t fujitsu_interrupt(int irq, void *dev_id)
244 unsigned long keymask, changed;
245 unsigned int keycode;
249 if (unlikely(!(fujitsu_status() & 0x01)))
252 fujitsu_send_state();
254 keymask = fujitsu_read_register(0xde);
255 keymask |= fujitsu_read_register(0xdf) << 8;
258 changed = keymask ^ fujitsu.prev_keymask;
260 fujitsu.prev_keymask = keymask;
262 for_each_set_bit(i, &changed, KEYMAP_LEN) {
263 keycode = fujitsu.config.keymap[i];
264 pressed = keymask & changed & BIT(i);
267 input_event(fujitsu.idev, EV_MSC, MSC_SCAN, i);
269 input_report_key(fujitsu.idev, keycode, pressed);
270 input_sync(fujitsu.idev);
278 static int __devinit fujitsu_dmi_default(const struct dmi_system_id *dmi)
280 printk(KERN_INFO MODULENAME ": %s\n", dmi->ident);
281 memcpy(fujitsu.config.keymap, dmi->driver_data,
282 sizeof(fujitsu.config.keymap));
286 static int __devinit fujitsu_dmi_stylistic(const struct dmi_system_id *dmi)
288 fujitsu_dmi_default(dmi);
289 fujitsu.config.quirks |= FORCE_TABLET_MODE_IF_UNDOCK;
290 fujitsu.config.quirks |= INVERT_TABLET_MODE_BIT;
294 static struct dmi_system_id dmi_ids[] __initconst = {
296 .callback = fujitsu_dmi_default,
297 .ident = "Fujitsu Siemens P/T Series",
299 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
300 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK")
302 .driver_data = keymap_Lifebook_Tseries
305 .callback = fujitsu_dmi_default,
306 .ident = "Fujitsu Lifebook T Series",
308 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
309 DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook T")
311 .driver_data = keymap_Lifebook_Tseries
314 .callback = fujitsu_dmi_stylistic,
315 .ident = "Fujitsu Siemens Stylistic T Series",
317 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
318 DMI_MATCH(DMI_PRODUCT_NAME, "Stylistic T")
320 .driver_data = keymap_Stylistic_Tseries
323 .callback = fujitsu_dmi_default,
324 .ident = "Fujitsu LifeBook U810",
326 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
327 DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook U810")
329 .driver_data = keymap_Lifebook_U810
332 .callback = fujitsu_dmi_stylistic,
333 .ident = "Fujitsu Siemens Stylistic ST5xxx Series",
335 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
336 DMI_MATCH(DMI_PRODUCT_NAME, "STYLISTIC ST5")
338 .driver_data = keymap_Stylistic_ST5xxx
341 .callback = fujitsu_dmi_stylistic,
342 .ident = "Fujitsu Siemens Stylistic ST5xxx Series",
344 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
345 DMI_MATCH(DMI_PRODUCT_NAME, "Stylistic ST5")
347 .driver_data = keymap_Stylistic_ST5xxx
350 .callback = fujitsu_dmi_default,
351 .ident = "Unknown (using defaults)",
353 DMI_MATCH(DMI_SYS_VENDOR, ""),
354 DMI_MATCH(DMI_PRODUCT_NAME, "")
356 .driver_data = keymap_Lifebook_Tseries
361 static acpi_status __devinit
362 fujitsu_walk_resources(struct acpi_resource *res, void *data)
365 case ACPI_RESOURCE_TYPE_IRQ:
366 fujitsu.irq = res->data.irq.interrupts[0];
369 case ACPI_RESOURCE_TYPE_IO:
370 fujitsu.io_base = res->data.io.minimum;
371 fujitsu.io_length = res->data.io.address_length;
374 case ACPI_RESOURCE_TYPE_END_TAG:
375 if (fujitsu.irq && fujitsu.io_base)
385 static int __devinit acpi_fujitsu_add(struct acpi_device *adev)
393 status = acpi_walk_resources(adev->handle, METHOD_NAME__CRS,
394 fujitsu_walk_resources, NULL);
395 if (ACPI_FAILURE(status) || !fujitsu.irq || !fujitsu.io_base)
398 sprintf(acpi_device_name(adev), "Fujitsu %s", acpi_device_hid(adev));
399 sprintf(acpi_device_class(adev), "%s", ACPI_FUJITSU_CLASS);
401 snprintf(fujitsu.phys, sizeof(fujitsu.phys),
402 "%s/input0", acpi_device_hid(adev));
404 error = input_fujitsu_setup(&adev->dev,
405 acpi_device_name(adev), fujitsu.phys);
409 if (!request_region(fujitsu.io_base, fujitsu.io_length, MODULENAME)) {
410 input_fujitsu_remove();
416 error = request_irq(fujitsu.irq, fujitsu_interrupt,
417 IRQF_SHARED, MODULENAME, fujitsu_interrupt);
419 release_region(fujitsu.io_base, fujitsu.io_length);
420 input_fujitsu_remove();
427 static int __devexit acpi_fujitsu_remove(struct acpi_device *adev, int type)
429 free_irq(fujitsu.irq, fujitsu_interrupt);
430 release_region(fujitsu.io_base, fujitsu.io_length);
431 input_fujitsu_remove();
435 static int acpi_fujitsu_resume(struct acpi_device *adev)
441 static struct acpi_driver acpi_fujitsu_driver = {
446 .add = acpi_fujitsu_add,
447 .remove = acpi_fujitsu_remove,
448 .resume = acpi_fujitsu_resume,
452 static int __init fujitsu_module_init(void)
456 dmi_check_system(dmi_ids);
458 error = acpi_bus_register_driver(&acpi_fujitsu_driver);
465 static void __exit fujitsu_module_exit(void)
467 acpi_bus_unregister_driver(&acpi_fujitsu_driver);
470 module_init(fujitsu_module_init);
471 module_exit(fujitsu_module_exit);
473 MODULE_AUTHOR("Robert Gerlach <khnz@gmx.de>");
474 MODULE_DESCRIPTION("Fujitsu tablet pc extras driver");
475 MODULE_LICENSE("GPL");
476 MODULE_VERSION("2.4");
478 MODULE_DEVICE_TABLE(acpi, fujitsu_ids);