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x86/amd-iommu: Add per IOMMU reference counting
[linux/fpc-iii.git] / drivers / input / keyboard / atkbd.c
blob4452eabbee6d66f14482271c35943a3125721aa6
1 /*
2 * AT and PS/2 keyboard driver
3 *
4 * Copyright (c) 1999-2002 Vojtech Pavlik
5 */
6
7 /*
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License version 2 as published by
10 * the Free Software Foundation.
11 */
12
13 /*
14 * This driver can handle standard AT keyboards and PS/2 keyboards in
15 * Translated and Raw Set 2 and Set 3, as well as AT keyboards on dumb
16 * input-only controllers and AT keyboards connected over a one way RS232
17 * converter.
18 */
19
20 #include <linux/delay.h>
21 #include <linux/module.h>
22 #include <linux/slab.h>
23 #include <linux/interrupt.h>
24 #include <linux/init.h>
25 #include <linux/input.h>
26 #include <linux/serio.h>
27 #include <linux/workqueue.h>
28 #include <linux/libps2.h>
29 #include <linux/mutex.h>
30 #include <linux/dmi.h>
31
32 #define DRIVER_DESC "AT and PS/2 keyboard driver"
33
34 MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
35 MODULE_DESCRIPTION(DRIVER_DESC);
36 MODULE_LICENSE("GPL");
37
38 static int atkbd_set = 2;
39 module_param_named(set, atkbd_set, int, 0);
40 MODULE_PARM_DESC(set, "Select keyboard code set (2 = default, 3 = PS/2 native)");
41
42 #if defined(__i386__) || defined(__x86_64__) || defined(__hppa__)
43 static int atkbd_reset;
44 #else
45 static int atkbd_reset = 1;
46 #endif
47 module_param_named(reset, atkbd_reset, bool, 0);
48 MODULE_PARM_DESC(reset, "Reset keyboard during initialization");
49
50 static int atkbd_softrepeat;
51 module_param_named(softrepeat, atkbd_softrepeat, bool, 0);
52 MODULE_PARM_DESC(softrepeat, "Use software keyboard repeat");
53
54 static int atkbd_softraw = 1;
55 module_param_named(softraw, atkbd_softraw, bool, 0);
56 MODULE_PARM_DESC(softraw, "Use software generated rawmode");
57
58 static int atkbd_scroll;
59 module_param_named(scroll, atkbd_scroll, bool, 0);
60 MODULE_PARM_DESC(scroll, "Enable scroll-wheel on MS Office and similar keyboards");
61
62 static int atkbd_extra;
63 module_param_named(extra, atkbd_extra, bool, 0);
64 MODULE_PARM_DESC(extra, "Enable extra LEDs and keys on IBM RapidAcces, EzKey and similar keyboards");
65
66 /*
67 * Scancode to keycode tables. These are just the default setting, and
68 * are loadable via a userland utility.
69 */
70
71 #define ATKBD_KEYMAP_SIZE 512
72
73 static const unsigned short atkbd_set2_keycode[ATKBD_KEYMAP_SIZE] = {
74
75 #ifdef CONFIG_KEYBOARD_ATKBD_HP_KEYCODES
76
77 /* XXX: need a more general approach */
78
79 #include "hpps2atkbd.h" /* include the keyboard scancodes */
80
81 #else
82 0, 67, 65, 63, 61, 59, 60, 88, 0, 68, 66, 64, 62, 15, 41,117,
83 0, 56, 42, 93, 29, 16, 2, 0, 0, 0, 44, 31, 30, 17, 3, 0,
84 0, 46, 45, 32, 18, 5, 4, 95, 0, 57, 47, 33, 20, 19, 6,183,
85 0, 49, 48, 35, 34, 21, 7,184, 0, 0, 50, 36, 22, 8, 9,185,
86 0, 51, 37, 23, 24, 11, 10, 0, 0, 52, 53, 38, 39, 25, 12, 0,
87 0, 89, 40, 0, 26, 13, 0, 0, 58, 54, 28, 27, 0, 43, 0, 85,
88 0, 86, 91, 90, 92, 0, 14, 94, 0, 79,124, 75, 71,121, 0, 0,
89 82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99,
90
91 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
92 217,100,255, 0, 97,165, 0, 0,156, 0, 0, 0, 0, 0, 0,125,
93 173,114, 0,113, 0, 0, 0,126,128, 0, 0,140, 0, 0, 0,127,
94 159, 0,115, 0,164, 0, 0,116,158, 0,172,166, 0, 0, 0,142,
95 157, 0, 0, 0, 0, 0, 0, 0,155, 0, 98, 0, 0,163, 0, 0,
96 226, 0, 0, 0, 0, 0, 0, 0, 0,255, 96, 0, 0, 0,143, 0,
97 0, 0, 0, 0, 0, 0, 0, 0, 0,107, 0,105,102, 0, 0,112,
98 110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119, 0,
99
100 0, 0, 0, 65, 99,
101 #endif
102 };
103
104 static const unsigned short atkbd_set3_keycode[ATKBD_KEYMAP_SIZE] = {
105
106 0, 0, 0, 0, 0, 0, 0, 59, 1,138,128,129,130, 15, 41, 60,
107 131, 29, 42, 86, 58, 16, 2, 61,133, 56, 44, 31, 30, 17, 3, 62,
108 134, 46, 45, 32, 18, 5, 4, 63,135, 57, 47, 33, 20, 19, 6, 64,
109 136, 49, 48, 35, 34, 21, 7, 65,137,100, 50, 36, 22, 8, 9, 66,
110 125, 51, 37, 23, 24, 11, 10, 67,126, 52, 53, 38, 39, 25, 12, 68,
111 113,114, 40, 43, 26, 13, 87, 99, 97, 54, 28, 27, 43, 43, 88, 70,
112 108,105,119,103,111,107, 14,110, 0, 79,106, 75, 71,109,102,104,
113 82, 83, 80, 76, 77, 72, 69, 98, 0, 96, 81, 0, 78, 73, 55,183,
114
115 184,185,186,187, 74, 94, 92, 93, 0, 0, 0,125,126,127,112, 0,
116 0,139,172,163,165,115,152,172,166,140,160,154,113,114,167,168,
117 148,149,147,140
118 };
119
120 static const unsigned short atkbd_unxlate_table[128] = {
121 0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13,
122 21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27,
123 35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42,
124 50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88, 5, 6, 4, 12, 3,
125 11, 2, 10, 1, 9,119,126,108,117,125,123,107,115,116,121,105,
126 114,122,112,113,127, 96, 97,120, 7, 15, 23, 31, 39, 47, 55, 63,
127 71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111,
128 19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110
129 };
130
131 #define ATKBD_CMD_SETLEDS 0x10ed
132 #define ATKBD_CMD_GSCANSET 0x11f0
133 #define ATKBD_CMD_SSCANSET 0x10f0
134 #define ATKBD_CMD_GETID 0x02f2
135 #define ATKBD_CMD_SETREP 0x10f3
136 #define ATKBD_CMD_ENABLE 0x00f4
137 #define ATKBD_CMD_RESET_DIS 0x00f5
138 #define ATKBD_CMD_SETALL_MBR 0x00fa
139 #define ATKBD_CMD_RESET_BAT 0x02ff
140 #define ATKBD_CMD_RESEND 0x00fe
141 #define ATKBD_CMD_EX_ENABLE 0x10ea
142 #define ATKBD_CMD_EX_SETLEDS 0x20eb
143 #define ATKBD_CMD_OK_GETID 0x02e8
144
145 #define ATKBD_RET_ACK 0xfa
146 #define ATKBD_RET_NAK 0xfe
147 #define ATKBD_RET_BAT 0xaa
148 #define ATKBD_RET_EMUL0 0xe0
149 #define ATKBD_RET_EMUL1 0xe1
150 #define ATKBD_RET_RELEASE 0xf0
151 #define ATKBD_RET_HANJA 0xf1
152 #define ATKBD_RET_HANGEUL 0xf2
153 #define ATKBD_RET_ERR 0xff
154
155 #define ATKBD_KEY_UNKNOWN 0
156 #define ATKBD_KEY_NULL 255
157
158 #define ATKBD_SCR_1 254
159 #define ATKBD_SCR_2 253
160 #define ATKBD_SCR_4 252
161 #define ATKBD_SCR_8 251
162 #define ATKBD_SCR_CLICK 250
163 #define ATKBD_SCR_LEFT 249
164 #define ATKBD_SCR_RIGHT 248
165
166 #define ATKBD_SPECIAL ATKBD_SCR_RIGHT
167
168 #define ATKBD_LED_EVENT_BIT 0
169 #define ATKBD_REP_EVENT_BIT 1
170
171 #define ATKBD_XL_ERR 0x01
172 #define ATKBD_XL_BAT 0x02
173 #define ATKBD_XL_ACK 0x04
174 #define ATKBD_XL_NAK 0x08
175 #define ATKBD_XL_HANGEUL 0x10
176 #define ATKBD_XL_HANJA 0x20
177
178 static const struct {
179 unsigned char keycode;
180 unsigned char set2;
181 } atkbd_scroll_keys[] = {
182 { ATKBD_SCR_1, 0xc5 },
183 { ATKBD_SCR_2, 0x9d },
184 { ATKBD_SCR_4, 0xa4 },
185 { ATKBD_SCR_8, 0x9b },
186 { ATKBD_SCR_CLICK, 0xe0 },
187 { ATKBD_SCR_LEFT, 0xcb },
188 { ATKBD_SCR_RIGHT, 0xd2 },
189 };
190
191 /*
192 * The atkbd control structure
193 */
194
195 struct atkbd {
196
197 struct ps2dev ps2dev;
198 struct input_dev *dev;
199
200 /* Written only during init */
201 char name[64];
202 char phys[32];
203
204 unsigned short id;
205 unsigned short keycode[ATKBD_KEYMAP_SIZE];
206 DECLARE_BITMAP(force_release_mask, ATKBD_KEYMAP_SIZE);
207 unsigned char set;
208 unsigned char translated;
209 unsigned char extra;
210 unsigned char write;
211 unsigned char softrepeat;
212 unsigned char softraw;
213 unsigned char scroll;
214 unsigned char enabled;
215
216 /* Accessed only from interrupt */
217 unsigned char emul;
218 unsigned char resend;
219 unsigned char release;
220 unsigned long xl_bit;
221 unsigned int last;
222 unsigned long time;
223 unsigned long err_count;
224
225 struct delayed_work event_work;
226 unsigned long event_jiffies;
227 struct mutex event_mutex;
228 unsigned long event_mask;
229 };
230
231 /*
232 * System-specific keymap fixup routine
233 */
234 static void (*atkbd_platform_fixup)(struct atkbd *, const void *data);
235 static void *atkbd_platform_fixup_data;
236 static unsigned int (*atkbd_platform_scancode_fixup)(struct atkbd *, unsigned int);
237
238 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
239 ssize_t (*handler)(struct atkbd *, char *));
240 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
241 ssize_t (*handler)(struct atkbd *, const char *, size_t));
242 #define ATKBD_DEFINE_ATTR(_name) \
243 static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
244 static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \
245 static ssize_t atkbd_do_show_##_name(struct device *d, \
246 struct device_attribute *attr, char *b) \
247 { \
248 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
249 } \
250 static ssize_t atkbd_do_set_##_name(struct device *d, \
251 struct device_attribute *attr, const char *b, size_t s) \
252 { \
253 return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \
254 } \
255 static struct device_attribute atkbd_attr_##_name = \
256 __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name);
257
258 ATKBD_DEFINE_ATTR(extra);
259 ATKBD_DEFINE_ATTR(force_release);
260 ATKBD_DEFINE_ATTR(scroll);
261 ATKBD_DEFINE_ATTR(set);
262 ATKBD_DEFINE_ATTR(softrepeat);
263 ATKBD_DEFINE_ATTR(softraw);
264
265 #define ATKBD_DEFINE_RO_ATTR(_name) \
266 static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
267 static ssize_t atkbd_do_show_##_name(struct device *d, \
268 struct device_attribute *attr, char *b) \
269 { \
270 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
271 } \
272 static struct device_attribute atkbd_attr_##_name = \
273 __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL);
274
275 ATKBD_DEFINE_RO_ATTR(err_count);
276
277 static struct attribute *atkbd_attributes[] = {
278 &atkbd_attr_extra.attr,
279 &atkbd_attr_force_release.attr,
280 &atkbd_attr_scroll.attr,
281 &atkbd_attr_set.attr,
282 &atkbd_attr_softrepeat.attr,
283 &atkbd_attr_softraw.attr,
284 &atkbd_attr_err_count.attr,
285 NULL
286 };
287
288 static struct attribute_group atkbd_attribute_group = {
289 .attrs = atkbd_attributes,
290 };
291
292 static const unsigned int xl_table[] = {
293 ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK,
294 ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL,
295 };
296
297 /*
298 * Checks if we should mangle the scancode to extract 'release' bit
299 * in translated mode.
300 */
301 static int atkbd_need_xlate(unsigned long xl_bit, unsigned char code)
302 {
303 int i;
304
305 if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1)
306 return 0;
307
308 for (i = 0; i < ARRAY_SIZE(xl_table); i++)
309 if (code == xl_table[i])
310 return test_bit(i, &xl_bit);
311
312 return 1;
313 }
314
315 /*
316 * Calculates new value of xl_bit so the driver can distinguish
317 * between make/break pair of scancodes for select keys and PS/2
318 * protocol responses.
319 */
320 static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code)
321 {
322 int i;
323
324 for (i = 0; i < ARRAY_SIZE(xl_table); i++) {
325 if (!((code ^ xl_table[i]) & 0x7f)) {
326 if (code & 0x80)
327 __clear_bit(i, &atkbd->xl_bit);
328 else
329 __set_bit(i, &atkbd->xl_bit);
330 break;
331 }
332 }
333 }
334
335 /*
336 * Encode the scancode, 0xe0 prefix, and high bit into a single integer,
337 * keeping kernel 2.4 compatibility for set 2
338 */
339 static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code)
340 {
341 if (atkbd->set == 3) {
342 if (atkbd->emul == 1)
343 code |= 0x100;
344 } else {
345 code = (code & 0x7f) | ((code & 0x80) << 1);
346 if (atkbd->emul == 1)
347 code |= 0x80;
348 }
349
350 return code;
351 }
352
353 /*
354 * atkbd_interrupt(). Here takes place processing of data received from
355 * the keyboard into events.
356 */
357
358 static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
359 unsigned int flags)
360 {
361 struct atkbd *atkbd = serio_get_drvdata(serio);
362 struct input_dev *dev = atkbd->dev;
363 unsigned int code = data;
364 int scroll = 0, hscroll = 0, click = -1;
365 int value;
366 unsigned short keycode;
367
368 #ifdef ATKBD_DEBUG
369 printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags);
370 #endif
371
372 #if !defined(__i386__) && !defined (__x86_64__)
373 if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
374 printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags);
375 serio_write(serio, ATKBD_CMD_RESEND);
376 atkbd->resend = 1;
377 goto out;
378 }
379
380 if (!flags && data == ATKBD_RET_ACK)
381 atkbd->resend = 0;
382 #endif
383
384 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK))
385 if (ps2_handle_ack(&atkbd->ps2dev, data))
386 goto out;
387
388 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD))
389 if (ps2_handle_response(&atkbd->ps2dev, data))
390 goto out;
391
392 if (!atkbd->enabled)
393 goto out;
394
395 input_event(dev, EV_MSC, MSC_RAW, code);
396
397 if (atkbd_platform_scancode_fixup)
398 code = atkbd_platform_scancode_fixup(atkbd, code);
399
400 if (atkbd->translated) {
401
402 if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) {
403 atkbd->release = code >> 7;
404 code &= 0x7f;
405 }
406
407 if (!atkbd->emul)
408 atkbd_calculate_xl_bit(atkbd, data);
409 }
410
411 switch (code) {
412 case ATKBD_RET_BAT:
413 atkbd->enabled = 0;
414 serio_reconnect(atkbd->ps2dev.serio);
415 goto out;
416 case ATKBD_RET_EMUL0:
417 atkbd->emul = 1;
418 goto out;
419 case ATKBD_RET_EMUL1:
420 atkbd->emul = 2;
421 goto out;
422 case ATKBD_RET_RELEASE:
423 atkbd->release = 1;
424 goto out;
425 case ATKBD_RET_ACK:
426 case ATKBD_RET_NAK:
427 if (printk_ratelimit())
428 printk(KERN_WARNING "atkbd.c: Spurious %s on %s. "
429 "Some program might be trying access hardware directly.\n",
430 data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
431 goto out;
432 case ATKBD_RET_ERR:
433 atkbd->err_count++;
434 #ifdef ATKBD_DEBUG
435 printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys);
436 #endif
437 goto out;
438 }
439
440 code = atkbd_compat_scancode(atkbd, code);
441
442 if (atkbd->emul && --atkbd->emul)
443 goto out;
444
445 keycode = atkbd->keycode[code];
446
447 if (keycode != ATKBD_KEY_NULL)
448 input_event(dev, EV_MSC, MSC_SCAN, code);
449
450 switch (keycode) {
451 case ATKBD_KEY_NULL:
452 break;
453 case ATKBD_KEY_UNKNOWN:
454 printk(KERN_WARNING
455 "atkbd.c: Unknown key %s (%s set %d, code %#x on %s).\n",
456 atkbd->release ? "released" : "pressed",
457 atkbd->translated ? "translated" : "raw",
458 atkbd->set, code, serio->phys);
459 printk(KERN_WARNING
460 "atkbd.c: Use 'setkeycodes %s%02x <keycode>' to make it known.\n",
461 code & 0x80 ? "e0" : "", code & 0x7f);
462 input_sync(dev);
463 break;
464 case ATKBD_SCR_1:
465 scroll = 1 - atkbd->release * 2;
466 break;
467 case ATKBD_SCR_2:
468 scroll = 2 - atkbd->release * 4;
469 break;
470 case ATKBD_SCR_4:
471 scroll = 4 - atkbd->release * 8;
472 break;
473 case ATKBD_SCR_8:
474 scroll = 8 - atkbd->release * 16;
475 break;
476 case ATKBD_SCR_CLICK:
477 click = !atkbd->release;
478 break;
479 case ATKBD_SCR_LEFT:
480 hscroll = -1;
481 break;
482 case ATKBD_SCR_RIGHT:
483 hscroll = 1;
484 break;
485 default:
486 if (atkbd->release) {
487 value = 0;
488 atkbd->last = 0;
489 } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) {
490 /* Workaround Toshiba laptop multiple keypress */
491 value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2;
492 } else {
493 value = 1;
494 atkbd->last = code;
495 atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2;
496 }
497
498 input_event(dev, EV_KEY, keycode, value);
499 input_sync(dev);
500
501 if (value && test_bit(code, atkbd->force_release_mask)) {
502 input_report_key(dev, keycode, 0);
503 input_sync(dev);
504 }
505 }
506
507 if (atkbd->scroll) {
508 if (click != -1)
509 input_report_key(dev, BTN_MIDDLE, click);
510 input_report_rel(dev, REL_WHEEL, scroll);
511 input_report_rel(dev, REL_HWHEEL, hscroll);
512 input_sync(dev);
513 }
514
515 atkbd->release = 0;
516 out:
517 return IRQ_HANDLED;
518 }
519
520 static int atkbd_set_repeat_rate(struct atkbd *atkbd)
521 {
522 const short period[32] =
523 { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125,
524 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 };
525 const short delay[4] =
526 { 250, 500, 750, 1000 };
527
528 struct input_dev *dev = atkbd->dev;
529 unsigned char param;
530 int i = 0, j = 0;
531
532 while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD])
533 i++;
534 dev->rep[REP_PERIOD] = period[i];
535
536 while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY])
537 j++;
538 dev->rep[REP_DELAY] = delay[j];
539
540 param = i | (j << 5);
541 return ps2_command(&atkbd->ps2dev, &param, ATKBD_CMD_SETREP);
542 }
543
544 static int atkbd_set_leds(struct atkbd *atkbd)
545 {
546 struct input_dev *dev = atkbd->dev;
547 unsigned char param[2];
548
549 param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
550 | (test_bit(LED_NUML, dev->led) ? 2 : 0)
551 | (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
552 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
553 return -1;
554
555 if (atkbd->extra) {
556 param[0] = 0;
557 param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
558 | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
559 | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
560 | (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
561 | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
562 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS))
563 return -1;
564 }
565
566 return 0;
567 }
568
569 /*
570 * atkbd_event_work() is used to complete processing of events that
571 * can not be processed by input_event() which is often called from
572 * interrupt context.
573 */
574
575 static void atkbd_event_work(struct work_struct *work)
576 {
577 struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work);
578
579 mutex_lock(&atkbd->event_mutex);
580
581 if (!atkbd->enabled) {
582 /*
583 * Serio ports are resumed asynchronously so while driver core
584 * thinks that device is already fully operational in reality
585 * it may not be ready yet. In this case we need to keep
586 * rescheduling till reconnect completes.
587 */
588 schedule_delayed_work(&atkbd->event_work,
589 msecs_to_jiffies(100));
590 } else {
591 if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask))
592 atkbd_set_leds(atkbd);
593
594 if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask))
595 atkbd_set_repeat_rate(atkbd);
596 }
597
598 mutex_unlock(&atkbd->event_mutex);
599 }
600
601 /*
602 * Schedule switch for execution. We need to throttle requests,
603 * otherwise keyboard may become unresponsive.
604 */
605 static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit)
606 {
607 unsigned long delay = msecs_to_jiffies(50);
608
609 if (time_after(jiffies, atkbd->event_jiffies + delay))
610 delay = 0;
611
612 atkbd->event_jiffies = jiffies;
613 set_bit(event_bit, &atkbd->event_mask);
614 wmb();
615 schedule_delayed_work(&atkbd->event_work, delay);
616 }
617
618 /*
619 * Event callback from the input module. Events that change the state of
620 * the hardware are processed here. If action can not be performed in
621 * interrupt context it is offloaded to atkbd_event_work.
622 */
623
624 static int atkbd_event(struct input_dev *dev,
625 unsigned int type, unsigned int code, int value)
626 {
627 struct atkbd *atkbd = input_get_drvdata(dev);
628
629 if (!atkbd->write)
630 return -1;
631
632 switch (type) {
633
634 case EV_LED:
635 atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT);
636 return 0;
637
638 case EV_REP:
639 if (!atkbd->softrepeat)
640 atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT);
641 return 0;
642 }
643
644 return -1;
645 }
646
647 /*
648 * atkbd_enable() signals that interrupt handler is allowed to
649 * generate input events.
650 */
651
652 static inline void atkbd_enable(struct atkbd *atkbd)
653 {
654 serio_pause_rx(atkbd->ps2dev.serio);
655 atkbd->enabled = 1;
656 serio_continue_rx(atkbd->ps2dev.serio);
657 }
658
659 /*
660 * atkbd_disable() tells input handler that all incoming data except
661 * for ACKs and command response should be dropped.
662 */
663
664 static inline void atkbd_disable(struct atkbd *atkbd)
665 {
666 serio_pause_rx(atkbd->ps2dev.serio);
667 atkbd->enabled = 0;
668 serio_continue_rx(atkbd->ps2dev.serio);
669 }
670
671 /*
672 * atkbd_probe() probes for an AT keyboard on a serio port.
673 */
674
675 static int atkbd_probe(struct atkbd *atkbd)
676 {
677 struct ps2dev *ps2dev = &atkbd->ps2dev;
678 unsigned char param[2];
679
680 /*
681 * Some systems, where the bit-twiddling when testing the io-lines of the
682 * controller may confuse the keyboard need a full reset of the keyboard. On
683 * these systems the BIOS also usually doesn't do it for us.
684 */
685
686 if (atkbd_reset)
687 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT))
688 printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", ps2dev->serio->phys);
689
690 /*
691 * Then we check the keyboard ID. We should get 0xab83 under normal conditions.
692 * Some keyboards report different values, but the first byte is always 0xab or
693 * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
694 * should make sure we don't try to set the LEDs on it.
695 */
696
697 param[0] = param[1] = 0xa5; /* initialize with invalid values */
698 if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) {
699
700 /*
701 * If the get ID command failed, we check if we can at least set the LEDs on
702 * the keyboard. This should work on every keyboard out there. It also turns
703 * the LEDs off, which we want anyway.
704 */
705 param[0] = 0;
706 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
707 return -1;
708 atkbd->id = 0xabba;
709 return 0;
710 }
711
712 if (!ps2_is_keyboard_id(param[0]))
713 return -1;
714
715 atkbd->id = (param[0] << 8) | param[1];
716
717 if (atkbd->id == 0xaca1 && atkbd->translated) {
718 printk(KERN_ERR "atkbd.c: NCD terminal keyboards are only supported on non-translating\n");
719 printk(KERN_ERR "atkbd.c: controllers. Use i8042.direct=1 to disable translation.\n");
720 return -1;
721 }
722
723 return 0;
724 }
725
726 /*
727 * atkbd_select_set checks if a keyboard has a working Set 3 support, and
728 * sets it into that. Unfortunately there are keyboards that can be switched
729 * to Set 3, but don't work well in that (BTC Multimedia ...)
730 */
731
732 static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra)
733 {
734 struct ps2dev *ps2dev = &atkbd->ps2dev;
735 unsigned char param[2];
736
737 atkbd->extra = 0;
738 /*
739 * For known special keyboards we can go ahead and set the correct set.
740 * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and
741 * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards.
742 */
743
744 if (atkbd->translated)
745 return 2;
746
747 if (atkbd->id == 0xaca1) {
748 param[0] = 3;
749 ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET);
750 return 3;
751 }
752
753 if (allow_extra) {
754 param[0] = 0x71;
755 if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) {
756 atkbd->extra = 1;
757 return 2;
758 }
759 }
760
761 if (target_set != 3)
762 return 2;
763
764 if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) {
765 atkbd->id = param[0] << 8 | param[1];
766 return 2;
767 }
768
769 param[0] = 3;
770 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
771 return 2;
772
773 param[0] = 0;
774 if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET))
775 return 2;
776
777 if (param[0] != 3) {
778 param[0] = 2;
779 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
780 return 2;
781 }
782
783 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR);
784
785 return 3;
786 }
787
788 static int atkbd_reset_state(struct atkbd *atkbd)
789 {
790 struct ps2dev *ps2dev = &atkbd->ps2dev;
791 unsigned char param[1];
792
793 /*
794 * Set the LEDs to a predefined state (all off).
795 */
796
797 param[0] = 0;
798 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
799 return -1;
800
801 /*
802 * Set autorepeat to fastest possible.
803 */
804
805 param[0] = 0;
806 if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP))
807 return -1;
808
809 return 0;
810 }
811
812 static int atkbd_activate(struct atkbd *atkbd)
813 {
814 struct ps2dev *ps2dev = &atkbd->ps2dev;
815
816 /*
817 * Enable the keyboard to receive keystrokes.
818 */
819
820 if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) {
821 printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n",
822 ps2dev->serio->phys);
823 return -1;
824 }
825
826 return 0;
827 }
828
829 /*
830 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
831 * reboot.
832 */
833
834 static void atkbd_cleanup(struct serio *serio)
835 {
836 struct atkbd *atkbd = serio_get_drvdata(serio);
837
838 atkbd_disable(atkbd);
839 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_BAT);
840 }
841
842
843 /*
844 * atkbd_disconnect() closes and frees.
845 */
846
847 static void atkbd_disconnect(struct serio *serio)
848 {
849 struct atkbd *atkbd = serio_get_drvdata(serio);
850
851 atkbd_disable(atkbd);
852
853 /* make sure we don't have a command in flight */
854 cancel_delayed_work_sync(&atkbd->event_work);
855
856 sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
857 input_unregister_device(atkbd->dev);
858 serio_close(serio);
859 serio_set_drvdata(serio, NULL);
860 kfree(atkbd);
861 }
862
863 /*
864 * generate release events for the keycodes given in data
865 */
866 static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
867 const void *data)
868 {
869 const unsigned int *keys = data;
870 unsigned int i;
871
872 if (atkbd->set == 2)
873 for (i = 0; keys[i] != -1U; i++)
874 __set_bit(keys[i], atkbd->force_release_mask);
875 }
876
877 /*
878 * Most special keys (Fn+F?) on Dell laptops do not generate release
879 * events so we have to do it ourselves.
880 */
881 static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
882 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
883 };
884
885 /*
886 * Perform fixup for HP system that doesn't generate release
887 * for its video switch
888 */
889 static unsigned int atkbd_hp_forced_release_keys[] = {
890 0x94, -1U
891 };
892
893 /*
894 * Samsung NC10,NC20 with Fn+F? key release not working
895 */
896 static unsigned int atkbd_samsung_forced_release_keys[] = {
897 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
898 };
899
900 /*
901 * Amilo Pi 3525 key release for Fn+Volume keys not working
902 */
903 static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = {
904 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U
905 };
906
907 /*
908 * Amilo Xi 3650 key release for light touch bar not working
909 */
910 static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
911 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U
912 };
913
914 /*
915 * Soltech TA12 system with broken key release on volume keys and mute key
916 */
917 static unsigned int atkdb_soltech_ta12_forced_release_keys[] = {
918 0xa0, 0xae, 0xb0, -1U
919 };
920
921 /*
922 * Many notebooks don't send key release event for volume up/down
923 * keys, with key list below common among them
924 */
925 static unsigned int atkbd_volume_forced_release_keys[] = {
926 0xae, 0xb0, -1U
927 };
928
929 /*
930 * OQO 01+ multimedia keys (64--66) generate e0 6x upon release whereas
931 * they should be generating e4-e6 (0x80 | code).
932 */
933 static unsigned int atkbd_oqo_01plus_scancode_fixup(struct atkbd *atkbd,
934 unsigned int code)
935 {
936 if (atkbd->translated && atkbd->emul == 1 &&
937 (code == 0x64 || code == 0x65 || code == 0x66)) {
938 atkbd->emul = 0;
939 code |= 0x80;
940 }
941
942 return code;
943 }
944
945 /*
946 * atkbd_set_keycode_table() initializes keyboard's keycode table
947 * according to the selected scancode set
948 */
949
950 static void atkbd_set_keycode_table(struct atkbd *atkbd)
951 {
952 unsigned int scancode;
953 int i, j;
954
955 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
956 bitmap_zero(atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
957
958 if (atkbd->translated) {
959 for (i = 0; i < 128; i++) {
960 scancode = atkbd_unxlate_table[i];
961 atkbd->keycode[i] = atkbd_set2_keycode[scancode];
962 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
963 if (atkbd->scroll)
964 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
965 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
966 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
967 }
968 } else if (atkbd->set == 3) {
969 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
970 } else {
971 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
972
973 if (atkbd->scroll)
974 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
975 scancode = atkbd_scroll_keys[i].set2;
976 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
977 }
978 }
979
980 /*
981 * HANGEUL and HANJA keys do not send release events so we need to
982 * generate such events ourselves
983 */
984 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
985 atkbd->keycode[scancode] = KEY_HANGEUL;
986 __set_bit(scancode, atkbd->force_release_mask);
987
988 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
989 atkbd->keycode[scancode] = KEY_HANJA;
990 __set_bit(scancode, atkbd->force_release_mask);
991
992 /*
993 * Perform additional fixups
994 */
995 if (atkbd_platform_fixup)
996 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
997 }
998
999 /*
1000 * atkbd_set_device_attrs() sets up keyboard's input device structure
1001 */
1002
1003 static void atkbd_set_device_attrs(struct atkbd *atkbd)
1004 {
1005 struct input_dev *input_dev = atkbd->dev;
1006 int i;
1007
1008 if (atkbd->extra)
1009 snprintf(atkbd->name, sizeof(atkbd->name),
1010 "AT Set 2 Extra keyboard");
1011 else
1012 snprintf(atkbd->name, sizeof(atkbd->name),
1013 "AT %s Set %d keyboard",
1014 atkbd->translated ? "Translated" : "Raw", atkbd->set);
1015
1016 snprintf(atkbd->phys, sizeof(atkbd->phys),
1017 "%s/input0", atkbd->ps2dev.serio->phys);
1018
1019 input_dev->name = atkbd->name;
1020 input_dev->phys = atkbd->phys;
1021 input_dev->id.bustype = BUS_I8042;
1022 input_dev->id.vendor = 0x0001;
1023 input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
1024 input_dev->id.version = atkbd->id;
1025 input_dev->event = atkbd_event;
1026 input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
1027
1028 input_set_drvdata(input_dev, atkbd);
1029
1030 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
1031 BIT_MASK(EV_MSC);
1032
1033 if (atkbd->write) {
1034 input_dev->evbit[0] |= BIT_MASK(EV_LED);
1035 input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
1036 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
1037 }
1038
1039 if (atkbd->extra)
1040 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
1041 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
1042 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
1043
1044 if (!atkbd->softrepeat) {
1045 input_dev->rep[REP_DELAY] = 250;
1046 input_dev->rep[REP_PERIOD] = 33;
1047 }
1048
1049 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
1050 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
1051
1052 if (atkbd->scroll) {
1053 input_dev->evbit[0] |= BIT_MASK(EV_REL);
1054 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
1055 BIT_MASK(REL_HWHEEL);
1056 __set_bit(BTN_MIDDLE, input_dev->keybit);
1057 }
1058
1059 input_dev->keycode = atkbd->keycode;
1060 input_dev->keycodesize = sizeof(unsigned short);
1061 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
1062
1063 for (i = 0; i < ATKBD_KEYMAP_SIZE; i++)
1064 if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL)
1065 __set_bit(atkbd->keycode[i], input_dev->keybit);
1066 }
1067
1068 /*
1069 * atkbd_connect() is called when the serio module finds an interface
1070 * that isn't handled yet by an appropriate device driver. We check if
1071 * there is an AT keyboard out there and if yes, we register ourselves
1072 * to the input module.
1073 */
1074
1075 static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
1076 {
1077 struct atkbd *atkbd;
1078 struct input_dev *dev;
1079 int err = -ENOMEM;
1080
1081 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
1082 dev = input_allocate_device();
1083 if (!atkbd || !dev)
1084 goto fail1;
1085
1086 atkbd->dev = dev;
1087 ps2_init(&atkbd->ps2dev, serio);
1088 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
1089 mutex_init(&atkbd->event_mutex);
1090
1091 switch (serio->id.type) {
1092
1093 case SERIO_8042_XL:
1094 atkbd->translated = 1;
1095 case SERIO_8042:
1096 if (serio->write)
1097 atkbd->write = 1;
1098 break;
1099 }
1100
1101 atkbd->softraw = atkbd_softraw;
1102 atkbd->softrepeat = atkbd_softrepeat;
1103 atkbd->scroll = atkbd_scroll;
1104
1105 if (atkbd->softrepeat)
1106 atkbd->softraw = 1;
1107
1108 serio_set_drvdata(serio, atkbd);
1109
1110 err = serio_open(serio, drv);
1111 if (err)
1112 goto fail2;
1113
1114 if (atkbd->write) {
1115
1116 if (atkbd_probe(atkbd)) {
1117 err = -ENODEV;
1118 goto fail3;
1119 }
1120
1121 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
1122 atkbd_reset_state(atkbd);
1123 atkbd_activate(atkbd);
1124
1125 } else {
1126 atkbd->set = 2;
1127 atkbd->id = 0xab00;
1128 }
1129
1130 atkbd_set_keycode_table(atkbd);
1131 atkbd_set_device_attrs(atkbd);
1132
1133 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group);
1134 if (err)
1135 goto fail3;
1136
1137 atkbd_enable(atkbd);
1138
1139 err = input_register_device(atkbd->dev);
1140 if (err)
1141 goto fail4;
1142
1143 return 0;
1144
1145 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
1146 fail3: serio_close(serio);
1147 fail2: serio_set_drvdata(serio, NULL);
1148 fail1: input_free_device(dev);
1149 kfree(atkbd);
1150 return err;
1151 }
1152
1153 /*
1154 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1155 * most likely called on resume.
1156 */
1157
1158 static int atkbd_reconnect(struct serio *serio)
1159 {
1160 struct atkbd *atkbd = serio_get_drvdata(serio);
1161 struct serio_driver *drv = serio->drv;
1162
1163 if (!atkbd || !drv) {
1164 printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
1165 return -1;
1166 }
1167
1168 atkbd_disable(atkbd);
1169
1170 if (atkbd->write) {
1171 if (atkbd_probe(atkbd))
1172 return -1;
1173 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
1174 return -1;
1175
1176 atkbd_activate(atkbd);
1177 }
1178
1179 atkbd_enable(atkbd);
1180
1181 return 0;
1182 }
1183
1184 static struct serio_device_id atkbd_serio_ids[] = {
1185 {
1186 .type = SERIO_8042,
1187 .proto = SERIO_ANY,
1188 .id = SERIO_ANY,
1189 .extra = SERIO_ANY,
1190 },
1191 {
1192 .type = SERIO_8042_XL,
1193 .proto = SERIO_ANY,
1194 .id = SERIO_ANY,
1195 .extra = SERIO_ANY,
1196 },
1197 {
1198 .type = SERIO_RS232,
1199 .proto = SERIO_PS2SER,
1200 .id = SERIO_ANY,
1201 .extra = SERIO_ANY,
1202 },
1203 { 0 }
1204 };
1205
1206 MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1207
1208 static struct serio_driver atkbd_drv = {
1209 .driver = {
1210 .name = "atkbd",
1211 },
1212 .description = DRIVER_DESC,
1213 .id_table = atkbd_serio_ids,
1214 .interrupt = atkbd_interrupt,
1215 .connect = atkbd_connect,
1216 .reconnect = atkbd_reconnect,
1217 .disconnect = atkbd_disconnect,
1218 .cleanup = atkbd_cleanup,
1219 };
1220
1221 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1222 ssize_t (*handler)(struct atkbd *, char *))
1223 {
1224 struct serio *serio = to_serio_port(dev);
1225 int retval;
1226
1227 retval = serio_pin_driver(serio);
1228 if (retval)
1229 return retval;
1230
1231 if (serio->drv != &atkbd_drv) {
1232 retval = -ENODEV;
1233 goto out;
1234 }
1235
1236 retval = handler((struct atkbd *)serio_get_drvdata(serio), buf);
1237
1238 out:
1239 serio_unpin_driver(serio);
1240 return retval;
1241 }
1242
1243 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1244 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1245 {
1246 struct serio *serio = to_serio_port(dev);
1247 struct atkbd *atkbd;
1248 int retval;
1249
1250 retval = serio_pin_driver(serio);
1251 if (retval)
1252 return retval;
1253
1254 if (serio->drv != &atkbd_drv) {
1255 retval = -ENODEV;
1256 goto out;
1257 }
1258
1259 atkbd = serio_get_drvdata(serio);
1260 atkbd_disable(atkbd);
1261 retval = handler(atkbd, buf, count);
1262 atkbd_enable(atkbd);
1263
1264 out:
1265 serio_unpin_driver(serio);
1266 return retval;
1267 }
1268
1269 static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1270 {
1271 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1272 }
1273
1274 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1275 {
1276 struct input_dev *old_dev, *new_dev;
1277 unsigned long value;
1278 int err;
1279 unsigned char old_extra, old_set;
1280
1281 if (!atkbd->write)
1282 return -EIO;
1283
1284 if (strict_strtoul(buf, 10, &value) || value > 1)
1285 return -EINVAL;
1286
1287 if (atkbd->extra != value) {
1288 /*
1289 * Since device's properties will change we need to
1290 * unregister old device. But allocate and register
1291 * new one first to make sure we have it.
1292 */
1293 old_dev = atkbd->dev;
1294 old_extra = atkbd->extra;
1295 old_set = atkbd->set;
1296
1297 new_dev = input_allocate_device();
1298 if (!new_dev)
1299 return -ENOMEM;
1300
1301 atkbd->dev = new_dev;
1302 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
1303 atkbd_reset_state(atkbd);
1304 atkbd_activate(atkbd);
1305 atkbd_set_keycode_table(atkbd);
1306 atkbd_set_device_attrs(atkbd);
1307
1308 err = input_register_device(atkbd->dev);
1309 if (err) {
1310 input_free_device(new_dev);
1311
1312 atkbd->dev = old_dev;
1313 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1314 atkbd_set_keycode_table(atkbd);
1315 atkbd_set_device_attrs(atkbd);
1316
1317 return err;
1318 }
1319 input_unregister_device(old_dev);
1320
1321 }
1322 return count;
1323 }
1324
1325 static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf)
1326 {
1327 size_t len = bitmap_scnlistprintf(buf, PAGE_SIZE - 2,
1328 atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1329
1330 buf[len++] = '\n';
1331 buf[len] = '\0';
1332
1333 return len;
1334 }
1335
1336 static ssize_t atkbd_set_force_release(struct atkbd *atkbd,
1337 const char *buf, size_t count)
1338 {
1339 /* 64 bytes on stack should be acceptable */
1340 DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE);
1341 int err;
1342
1343 err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE);
1344 if (err)
1345 return err;
1346
1347 memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask));
1348 return count;
1349 }
1350
1351
1352 static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1353 {
1354 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1355 }
1356
1357 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1358 {
1359 struct input_dev *old_dev, *new_dev;
1360 unsigned long value;
1361 int err;
1362 unsigned char old_scroll;
1363
1364 if (strict_strtoul(buf, 10, &value) || value > 1)
1365 return -EINVAL;
1366
1367 if (atkbd->scroll != value) {
1368 old_dev = atkbd->dev;
1369 old_scroll = atkbd->scroll;
1370
1371 new_dev = input_allocate_device();
1372 if (!new_dev)
1373 return -ENOMEM;
1374
1375 atkbd->dev = new_dev;
1376 atkbd->scroll = value;
1377 atkbd_set_keycode_table(atkbd);
1378 atkbd_set_device_attrs(atkbd);
1379
1380 err = input_register_device(atkbd->dev);
1381 if (err) {
1382 input_free_device(new_dev);
1383
1384 atkbd->scroll = old_scroll;
1385 atkbd->dev = old_dev;
1386 atkbd_set_keycode_table(atkbd);
1387 atkbd_set_device_attrs(atkbd);
1388
1389 return err;
1390 }
1391 input_unregister_device(old_dev);
1392 }
1393 return count;
1394 }
1395
1396 static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1397 {
1398 return sprintf(buf, "%d\n", atkbd->set);
1399 }
1400
1401 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1402 {
1403 struct input_dev *old_dev, *new_dev;
1404 unsigned long value;
1405 int err;
1406 unsigned char old_set, old_extra;
1407
1408 if (!atkbd->write)
1409 return -EIO;
1410
1411 if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3))
1412 return -EINVAL;
1413
1414 if (atkbd->set != value) {
1415 old_dev = atkbd->dev;
1416 old_extra = atkbd->extra;
1417 old_set = atkbd->set;
1418
1419 new_dev = input_allocate_device();
1420 if (!new_dev)
1421 return -ENOMEM;
1422
1423 atkbd->dev = new_dev;
1424 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
1425 atkbd_activate(atkbd);
1426 atkbd_set_keycode_table(atkbd);
1427 atkbd_set_device_attrs(atkbd);
1428
1429 err = input_register_device(atkbd->dev);
1430 if (err) {
1431 input_free_device(new_dev);
1432
1433 atkbd->dev = old_dev;
1434 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1435 atkbd_set_keycode_table(atkbd);
1436 atkbd_set_device_attrs(atkbd);
1437
1438 return err;
1439 }
1440 input_unregister_device(old_dev);
1441 }
1442 return count;
1443 }
1444
1445 static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1446 {
1447 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1448 }
1449
1450 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1451 {
1452 struct input_dev *old_dev, *new_dev;
1453 unsigned long value;
1454 int err;
1455 unsigned char old_softrepeat, old_softraw;
1456
1457 if (!atkbd->write)
1458 return -EIO;
1459
1460 if (strict_strtoul(buf, 10, &value) || value > 1)
1461 return -EINVAL;
1462
1463 if (atkbd->softrepeat != value) {
1464 old_dev = atkbd->dev;
1465 old_softrepeat = atkbd->softrepeat;
1466 old_softraw = atkbd->softraw;
1467
1468 new_dev = input_allocate_device();
1469 if (!new_dev)
1470 return -ENOMEM;
1471
1472 atkbd->dev = new_dev;
1473 atkbd->softrepeat = value;
1474 if (atkbd->softrepeat)
1475 atkbd->softraw = 1;
1476 atkbd_set_device_attrs(atkbd);
1477
1478 err = input_register_device(atkbd->dev);
1479 if (err) {
1480 input_free_device(new_dev);
1481
1482 atkbd->dev = old_dev;
1483 atkbd->softrepeat = old_softrepeat;
1484 atkbd->softraw = old_softraw;
1485 atkbd_set_device_attrs(atkbd);
1486
1487 return err;
1488 }
1489 input_unregister_device(old_dev);
1490 }
1491 return count;
1492 }
1493
1494
1495 static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1496 {
1497 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1498 }
1499
1500 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1501 {
1502 struct input_dev *old_dev, *new_dev;
1503 unsigned long value;
1504 int err;
1505 unsigned char old_softraw;
1506
1507 if (strict_strtoul(buf, 10, &value) || value > 1)
1508 return -EINVAL;
1509
1510 if (atkbd->softraw != value) {
1511 old_dev = atkbd->dev;
1512 old_softraw = atkbd->softraw;
1513
1514 new_dev = input_allocate_device();
1515 if (!new_dev)
1516 return -ENOMEM;
1517
1518 atkbd->dev = new_dev;
1519 atkbd->softraw = value;
1520 atkbd_set_device_attrs(atkbd);
1521
1522 err = input_register_device(atkbd->dev);
1523 if (err) {
1524 input_free_device(new_dev);
1525
1526 atkbd->dev = old_dev;
1527 atkbd->softraw = old_softraw;
1528 atkbd_set_device_attrs(atkbd);
1529
1530 return err;
1531 }
1532 input_unregister_device(old_dev);
1533 }
1534 return count;
1535 }
1536
1537 static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1538 {
1539 return sprintf(buf, "%lu\n", atkbd->err_count);
1540 }
1541
1542 static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
1543 {
1544 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1545 atkbd_platform_fixup_data = id->driver_data;
1546
1547 return 0;
1548 }
1549
1550 static int __init atkbd_setup_scancode_fixup(const struct dmi_system_id *id)
1551 {
1552 atkbd_platform_scancode_fixup = id->driver_data;
1553
1554 return 0;
1555 }
1556
1557 static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
1558 {
1559 .ident = "Dell Laptop",
1560 .matches = {
1561 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1562 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1563 },
1564 .callback = atkbd_setup_forced_release,
1565 .driver_data = atkbd_dell_laptop_forced_release_keys,
1566 },
1567 {
1568 .ident = "Dell Laptop",
1569 .matches = {
1570 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1571 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1572 },
1573 .callback = atkbd_setup_forced_release,
1574 .driver_data = atkbd_dell_laptop_forced_release_keys,
1575 },
1576 {
1577 .ident = "HP 2133",
1578 .matches = {
1579 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1580 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1581 },
1582 .callback = atkbd_setup_forced_release,
1583 .driver_data = atkbd_hp_forced_release_keys,
1584 },
1585 {
1586 .ident = "HP Pavilion ZV6100",
1587 .matches = {
1588 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1589 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1590 },
1591 .callback = atkbd_setup_forced_release,
1592 .driver_data = atkbd_volume_forced_release_keys,
1593 },
1594 {
1595 .ident = "HP Presario R4000",
1596 .matches = {
1597 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1598 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"),
1599 },
1600 .callback = atkbd_setup_forced_release,
1601 .driver_data = atkbd_volume_forced_release_keys,
1602 },
1603 {
1604 .ident = "HP Presario R4100",
1605 .matches = {
1606 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1607 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"),
1608 },
1609 .callback = atkbd_setup_forced_release,
1610 .driver_data = atkbd_volume_forced_release_keys,
1611 },
1612 {
1613 .ident = "HP Presario R4200",
1614 .matches = {
1615 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1616 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"),
1617 },
1618 .callback = atkbd_setup_forced_release,
1619 .driver_data = atkbd_volume_forced_release_keys,
1620 },
1621 {
1622 .ident = "Inventec Symphony",
1623 .matches = {
1624 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1625 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1626 },
1627 .callback = atkbd_setup_forced_release,
1628 .driver_data = atkbd_volume_forced_release_keys,
1629 },
1630 {
1631 .ident = "Samsung NC10",
1632 .matches = {
1633 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1634 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1635 },
1636 .callback = atkbd_setup_forced_release,
1637 .driver_data = atkbd_samsung_forced_release_keys,
1638 },
1639 {
1640 .ident = "Samsung NC20",
1641 .matches = {
1642 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1643 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
1644 },
1645 .callback = atkbd_setup_forced_release,
1646 .driver_data = atkbd_samsung_forced_release_keys,
1647 },
1648 {
1649 .ident = "Samsung SQ45S70S",
1650 .matches = {
1651 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1652 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
1653 },
1654 .callback = atkbd_setup_forced_release,
1655 .driver_data = atkbd_samsung_forced_release_keys,
1656 },
1657 {
1658 .ident = "Fujitsu Amilo PA 1510",
1659 .matches = {
1660 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1661 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1662 },
1663 .callback = atkbd_setup_forced_release,
1664 .driver_data = atkbd_volume_forced_release_keys,
1665 },
1666 {
1667 .ident = "Fujitsu Amilo Pi 3525",
1668 .matches = {
1669 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1670 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"),
1671 },
1672 .callback = atkbd_setup_forced_release,
1673 .driver_data = atkbd_amilo_pi3525_forced_release_keys,
1674 },
1675 {
1676 .ident = "Fujitsu Amilo Xi 3650",
1677 .matches = {
1678 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1679 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"),
1680 },
1681 .callback = atkbd_setup_forced_release,
1682 .driver_data = atkbd_amilo_xi3650_forced_release_keys,
1683 },
1684 {
1685 .ident = "Soltech Corporation TA12",
1686 .matches = {
1687 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"),
1688 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"),
1689 },
1690 .callback = atkbd_setup_forced_release,
1691 .driver_data = atkdb_soltech_ta12_forced_release_keys,
1692 },
1693 {
1694 .ident = "OQO Model 01+",
1695 .matches = {
1696 DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
1697 DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
1698 },
1699 .callback = atkbd_setup_scancode_fixup,
1700 .driver_data = atkbd_oqo_01plus_scancode_fixup,
1701 },
1702 { }
1703 };
1704
1705 static int __init atkbd_init(void)
1706 {
1707 dmi_check_system(atkbd_dmi_quirk_table);
1708
1709 return serio_register_driver(&atkbd_drv);
1710 }
1711
1712 static void __exit atkbd_exit(void)
1713 {
1714 serio_unregister_driver(&atkbd_drv);
1715 }
1716
1717 module_init(atkbd_init);
1718 module_exit(atkbd_exit);
Linux with added FPC-III support