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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[linux-2.6/libata-dev.git] / drivers / input / keyboard / atkbd.c
blob4709e15af6070522dcf03516acb058bd024b07d7
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
237 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
238 ssize_t (*handler)(struct atkbd *, char *));
239 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
240 ssize_t (*handler)(struct atkbd *, const char *, size_t));
241 #define ATKBD_DEFINE_ATTR(_name) \
242 static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
243 static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \
244 static ssize_t atkbd_do_show_##_name(struct device *d, \
245 struct device_attribute *attr, char *b) \
246 { \
247 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
248 } \
249 static ssize_t atkbd_do_set_##_name(struct device *d, \
250 struct device_attribute *attr, const char *b, size_t s) \
251 { \
252 return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \
253 } \
254 static struct device_attribute atkbd_attr_##_name = \
255 __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name);
256
257 ATKBD_DEFINE_ATTR(extra);
258 ATKBD_DEFINE_ATTR(force_release);
259 ATKBD_DEFINE_ATTR(scroll);
260 ATKBD_DEFINE_ATTR(set);
261 ATKBD_DEFINE_ATTR(softrepeat);
262 ATKBD_DEFINE_ATTR(softraw);
263
264 #define ATKBD_DEFINE_RO_ATTR(_name) \
265 static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
266 static ssize_t atkbd_do_show_##_name(struct device *d, \
267 struct device_attribute *attr, char *b) \
268 { \
269 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
270 } \
271 static struct device_attribute atkbd_attr_##_name = \
272 __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL);
273
274 ATKBD_DEFINE_RO_ATTR(err_count);
275
276 static struct attribute *atkbd_attributes[] = {
277 &atkbd_attr_extra.attr,
278 &atkbd_attr_force_release.attr,
279 &atkbd_attr_scroll.attr,
280 &atkbd_attr_set.attr,
281 &atkbd_attr_softrepeat.attr,
282 &atkbd_attr_softraw.attr,
283 &atkbd_attr_err_count.attr,
284 NULL
285 };
286
287 static struct attribute_group atkbd_attribute_group = {
288 .attrs = atkbd_attributes,
289 };
290
291 static const unsigned int xl_table[] = {
292 ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK,
293 ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL,
294 };
295
296 /*
297 * Checks if we should mangle the scancode to extract 'release' bit
298 * in translated mode.
299 */
300 static int atkbd_need_xlate(unsigned long xl_bit, unsigned char code)
301 {
302 int i;
303
304 if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1)
305 return 0;
306
307 for (i = 0; i < ARRAY_SIZE(xl_table); i++)
308 if (code == xl_table[i])
309 return test_bit(i, &xl_bit);
310
311 return 1;
312 }
313
314 /*
315 * Calculates new value of xl_bit so the driver can distinguish
316 * between make/break pair of scancodes for select keys and PS/2
317 * protocol responses.
318 */
319 static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code)
320 {
321 int i;
322
323 for (i = 0; i < ARRAY_SIZE(xl_table); i++) {
324 if (!((code ^ xl_table[i]) & 0x7f)) {
325 if (code & 0x80)
326 __clear_bit(i, &atkbd->xl_bit);
327 else
328 __set_bit(i, &atkbd->xl_bit);
329 break;
330 }
331 }
332 }
333
334 /*
335 * Encode the scancode, 0xe0 prefix, and high bit into a single integer,
336 * keeping kernel 2.4 compatibility for set 2
337 */
338 static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code)
339 {
340 if (atkbd->set == 3) {
341 if (atkbd->emul == 1)
342 code |= 0x100;
343 } else {
344 code = (code & 0x7f) | ((code & 0x80) << 1);
345 if (atkbd->emul == 1)
346 code |= 0x80;
347 }
348
349 return code;
350 }
351
352 /*
353 * atkbd_interrupt(). Here takes place processing of data received from
354 * the keyboard into events.
355 */
356
357 static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
358 unsigned int flags)
359 {
360 struct atkbd *atkbd = serio_get_drvdata(serio);
361 struct input_dev *dev = atkbd->dev;
362 unsigned int code = data;
363 int scroll = 0, hscroll = 0, click = -1;
364 int value;
365 unsigned short keycode;
366
367 #ifdef ATKBD_DEBUG
368 printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags);
369 #endif
370
371 #if !defined(__i386__) && !defined (__x86_64__)
372 if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
373 printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags);
374 serio_write(serio, ATKBD_CMD_RESEND);
375 atkbd->resend = 1;
376 goto out;
377 }
378
379 if (!flags && data == ATKBD_RET_ACK)
380 atkbd->resend = 0;
381 #endif
382
383 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK))
384 if (ps2_handle_ack(&atkbd->ps2dev, data))
385 goto out;
386
387 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD))
388 if (ps2_handle_response(&atkbd->ps2dev, data))
389 goto out;
390
391 if (!atkbd->enabled)
392 goto out;
393
394 input_event(dev, EV_MSC, MSC_RAW, code);
395
396 if (atkbd->translated) {
397
398 if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) {
399 atkbd->release = code >> 7;
400 code &= 0x7f;
401 }
402
403 if (!atkbd->emul)
404 atkbd_calculate_xl_bit(atkbd, data);
405 }
406
407 switch (code) {
408 case ATKBD_RET_BAT:
409 atkbd->enabled = 0;
410 serio_reconnect(atkbd->ps2dev.serio);
411 goto out;
412 case ATKBD_RET_EMUL0:
413 atkbd->emul = 1;
414 goto out;
415 case ATKBD_RET_EMUL1:
416 atkbd->emul = 2;
417 goto out;
418 case ATKBD_RET_RELEASE:
419 atkbd->release = 1;
420 goto out;
421 case ATKBD_RET_ACK:
422 case ATKBD_RET_NAK:
423 if (printk_ratelimit())
424 printk(KERN_WARNING "atkbd.c: Spurious %s on %s. "
425 "Some program might be trying access hardware directly.\n",
426 data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
427 goto out;
428 case ATKBD_RET_ERR:
429 atkbd->err_count++;
430 #ifdef ATKBD_DEBUG
431 printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys);
432 #endif
433 goto out;
434 }
435
436 code = atkbd_compat_scancode(atkbd, code);
437
438 if (atkbd->emul && --atkbd->emul)
439 goto out;
440
441 keycode = atkbd->keycode[code];
442
443 if (keycode != ATKBD_KEY_NULL)
444 input_event(dev, EV_MSC, MSC_SCAN, code);
445
446 switch (keycode) {
447 case ATKBD_KEY_NULL:
448 break;
449 case ATKBD_KEY_UNKNOWN:
450 printk(KERN_WARNING
451 "atkbd.c: Unknown key %s (%s set %d, code %#x on %s).\n",
452 atkbd->release ? "released" : "pressed",
453 atkbd->translated ? "translated" : "raw",
454 atkbd->set, code, serio->phys);
455 printk(KERN_WARNING
456 "atkbd.c: Use 'setkeycodes %s%02x <keycode>' to make it known.\n",
457 code & 0x80 ? "e0" : "", code & 0x7f);
458 input_sync(dev);
459 break;
460 case ATKBD_SCR_1:
461 scroll = 1 - atkbd->release * 2;
462 break;
463 case ATKBD_SCR_2:
464 scroll = 2 - atkbd->release * 4;
465 break;
466 case ATKBD_SCR_4:
467 scroll = 4 - atkbd->release * 8;
468 break;
469 case ATKBD_SCR_8:
470 scroll = 8 - atkbd->release * 16;
471 break;
472 case ATKBD_SCR_CLICK:
473 click = !atkbd->release;
474 break;
475 case ATKBD_SCR_LEFT:
476 hscroll = -1;
477 break;
478 case ATKBD_SCR_RIGHT:
479 hscroll = 1;
480 break;
481 default:
482 if (atkbd->release) {
483 value = 0;
484 atkbd->last = 0;
485 } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) {
486 /* Workaround Toshiba laptop multiple keypress */
487 value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2;
488 } else {
489 value = 1;
490 atkbd->last = code;
491 atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2;
492 }
493
494 input_event(dev, EV_KEY, keycode, value);
495 input_sync(dev);
496
497 if (value && test_bit(code, atkbd->force_release_mask)) {
498 input_report_key(dev, keycode, 0);
499 input_sync(dev);
500 }
501 }
502
503 if (atkbd->scroll) {
504 if (click != -1)
505 input_report_key(dev, BTN_MIDDLE, click);
506 input_report_rel(dev, REL_WHEEL, scroll);
507 input_report_rel(dev, REL_HWHEEL, hscroll);
508 input_sync(dev);
509 }
510
511 atkbd->release = 0;
512 out:
513 return IRQ_HANDLED;
514 }
515
516 static int atkbd_set_repeat_rate(struct atkbd *atkbd)
517 {
518 const short period[32] =
519 { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125,
520 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 };
521 const short delay[4] =
522 { 250, 500, 750, 1000 };
523
524 struct input_dev *dev = atkbd->dev;
525 unsigned char param;
526 int i = 0, j = 0;
527
528 while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD])
529 i++;
530 dev->rep[REP_PERIOD] = period[i];
531
532 while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY])
533 j++;
534 dev->rep[REP_DELAY] = delay[j];
535
536 param = i | (j << 5);
537 return ps2_command(&atkbd->ps2dev, &param, ATKBD_CMD_SETREP);
538 }
539
540 static int atkbd_set_leds(struct atkbd *atkbd)
541 {
542 struct input_dev *dev = atkbd->dev;
543 unsigned char param[2];
544
545 param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
546 | (test_bit(LED_NUML, dev->led) ? 2 : 0)
547 | (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
548 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
549 return -1;
550
551 if (atkbd->extra) {
552 param[0] = 0;
553 param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
554 | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
555 | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
556 | (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
557 | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
558 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS))
559 return -1;
560 }
561
562 return 0;
563 }
564
565 /*
566 * atkbd_event_work() is used to complete processing of events that
567 * can not be processed by input_event() which is often called from
568 * interrupt context.
569 */
570
571 static void atkbd_event_work(struct work_struct *work)
572 {
573 struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work);
574
575 mutex_lock(&atkbd->event_mutex);
576
577 if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask))
578 atkbd_set_leds(atkbd);
579
580 if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask))
581 atkbd_set_repeat_rate(atkbd);
582
583 mutex_unlock(&atkbd->event_mutex);
584 }
585
586 /*
587 * Schedule switch for execution. We need to throttle requests,
588 * otherwise keyboard may become unresponsive.
589 */
590 static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit)
591 {
592 unsigned long delay = msecs_to_jiffies(50);
593
594 if (time_after(jiffies, atkbd->event_jiffies + delay))
595 delay = 0;
596
597 atkbd->event_jiffies = jiffies;
598 set_bit(event_bit, &atkbd->event_mask);
599 wmb();
600 schedule_delayed_work(&atkbd->event_work, delay);
601 }
602
603 /*
604 * Event callback from the input module. Events that change the state of
605 * the hardware are processed here. If action can not be performed in
606 * interrupt context it is offloaded to atkbd_event_work.
607 */
608
609 static int atkbd_event(struct input_dev *dev,
610 unsigned int type, unsigned int code, int value)
611 {
612 struct atkbd *atkbd = input_get_drvdata(dev);
613
614 if (!atkbd->write)
615 return -1;
616
617 switch (type) {
618
619 case EV_LED:
620 atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT);
621 return 0;
622
623 case EV_REP:
624 if (!atkbd->softrepeat)
625 atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT);
626 return 0;
627 }
628
629 return -1;
630 }
631
632 /*
633 * atkbd_enable() signals that interrupt handler is allowed to
634 * generate input events.
635 */
636
637 static inline void atkbd_enable(struct atkbd *atkbd)
638 {
639 serio_pause_rx(atkbd->ps2dev.serio);
640 atkbd->enabled = 1;
641 serio_continue_rx(atkbd->ps2dev.serio);
642 }
643
644 /*
645 * atkbd_disable() tells input handler that all incoming data except
646 * for ACKs and command response should be dropped.
647 */
648
649 static inline void atkbd_disable(struct atkbd *atkbd)
650 {
651 serio_pause_rx(atkbd->ps2dev.serio);
652 atkbd->enabled = 0;
653 serio_continue_rx(atkbd->ps2dev.serio);
654 }
655
656 /*
657 * atkbd_probe() probes for an AT keyboard on a serio port.
658 */
659
660 static int atkbd_probe(struct atkbd *atkbd)
661 {
662 struct ps2dev *ps2dev = &atkbd->ps2dev;
663 unsigned char param[2];
664
665 /*
666 * Some systems, where the bit-twiddling when testing the io-lines of the
667 * controller may confuse the keyboard need a full reset of the keyboard. On
668 * these systems the BIOS also usually doesn't do it for us.
669 */
670
671 if (atkbd_reset)
672 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT))
673 printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", ps2dev->serio->phys);
674
675 /*
676 * Then we check the keyboard ID. We should get 0xab83 under normal conditions.
677 * Some keyboards report different values, but the first byte is always 0xab or
678 * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
679 * should make sure we don't try to set the LEDs on it.
680 */
681
682 param[0] = param[1] = 0xa5; /* initialize with invalid values */
683 if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) {
684
685 /*
686 * If the get ID command failed, we check if we can at least set the LEDs on
687 * the keyboard. This should work on every keyboard out there. It also turns
688 * the LEDs off, which we want anyway.
689 */
690 param[0] = 0;
691 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
692 return -1;
693 atkbd->id = 0xabba;
694 return 0;
695 }
696
697 if (!ps2_is_keyboard_id(param[0]))
698 return -1;
699
700 atkbd->id = (param[0] << 8) | param[1];
701
702 if (atkbd->id == 0xaca1 && atkbd->translated) {
703 printk(KERN_ERR "atkbd.c: NCD terminal keyboards are only supported on non-translating\n");
704 printk(KERN_ERR "atkbd.c: controllers. Use i8042.direct=1 to disable translation.\n");
705 return -1;
706 }
707
708 return 0;
709 }
710
711 /*
712 * atkbd_select_set checks if a keyboard has a working Set 3 support, and
713 * sets it into that. Unfortunately there are keyboards that can be switched
714 * to Set 3, but don't work well in that (BTC Multimedia ...)
715 */
716
717 static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra)
718 {
719 struct ps2dev *ps2dev = &atkbd->ps2dev;
720 unsigned char param[2];
721
722 atkbd->extra = 0;
723 /*
724 * For known special keyboards we can go ahead and set the correct set.
725 * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and
726 * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards.
727 */
728
729 if (atkbd->translated)
730 return 2;
731
732 if (atkbd->id == 0xaca1) {
733 param[0] = 3;
734 ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET);
735 return 3;
736 }
737
738 if (allow_extra) {
739 param[0] = 0x71;
740 if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) {
741 atkbd->extra = 1;
742 return 2;
743 }
744 }
745
746 if (target_set != 3)
747 return 2;
748
749 if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) {
750 atkbd->id = param[0] << 8 | param[1];
751 return 2;
752 }
753
754 param[0] = 3;
755 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
756 return 2;
757
758 param[0] = 0;
759 if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET))
760 return 2;
761
762 if (param[0] != 3) {
763 param[0] = 2;
764 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
765 return 2;
766 }
767
768 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR);
769
770 return 3;
771 }
772
773 static int atkbd_activate(struct atkbd *atkbd)
774 {
775 struct ps2dev *ps2dev = &atkbd->ps2dev;
776
777 /*
778 * Enable the keyboard to receive keystrokes.
779 */
780
781 if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) {
782 printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n",
783 ps2dev->serio->phys);
784 return -1;
785 }
786
787 return 0;
788 }
789
790 /*
791 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
792 * reboot.
793 */
794
795 static void atkbd_cleanup(struct serio *serio)
796 {
797 struct atkbd *atkbd = serio_get_drvdata(serio);
798
799 atkbd_disable(atkbd);
800 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_BAT);
801 }
802
803
804 /*
805 * atkbd_disconnect() closes and frees.
806 */
807
808 static void atkbd_disconnect(struct serio *serio)
809 {
810 struct atkbd *atkbd = serio_get_drvdata(serio);
811
812 atkbd_disable(atkbd);
813
814 /* make sure we don't have a command in flight */
815 cancel_delayed_work_sync(&atkbd->event_work);
816
817 sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
818 input_unregister_device(atkbd->dev);
819 serio_close(serio);
820 serio_set_drvdata(serio, NULL);
821 kfree(atkbd);
822 }
823
824 /*
825 * generate release events for the keycodes given in data
826 */
827 static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
828 const void *data)
829 {
830 const unsigned int *keys = data;
831 unsigned int i;
832
833 if (atkbd->set == 2)
834 for (i = 0; keys[i] != -1U; i++)
835 __set_bit(keys[i], atkbd->force_release_mask);
836 }
837
838 /*
839 * Most special keys (Fn+F?) on Dell laptops do not generate release
840 * events so we have to do it ourselves.
841 */
842 static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
843 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
844 };
845
846 /*
847 * Perform fixup for HP system that doesn't generate release
848 * for its video switch
849 */
850 static unsigned int atkbd_hp_forced_release_keys[] = {
851 0x94, -1U
852 };
853
854 /*
855 * Inventec system with broken key release on volume keys
856 */
857 static unsigned int atkbd_inventec_forced_release_keys[] = {
858 0xae, 0xb0, -1U
859 };
860
861 /*
862 * Perform fixup for HP Pavilion ZV6100 laptop that doesn't generate release
863 * for its volume buttons
864 */
865 static unsigned int atkbd_hp_zv6100_forced_release_keys[] = {
866 0xae, 0xb0, -1U
867 };
868
869 /*
870 * Perform fixup for HP (Compaq) Presario R4000 R4100 R4200 that don't generate
871 * release for their volume buttons
872 */
873 static unsigned int atkbd_hp_r4000_forced_release_keys[] = {
874 0xae, 0xb0, -1U
875 };
876
877 /*
878 * Samsung NC10,NC20 with Fn+F? key release not working
879 */
880 static unsigned int atkbd_samsung_forced_release_keys[] = {
881 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
882 };
883
884 /*
885 * The volume up and volume down special keys on a Fujitsu Amilo PA 1510 laptop
886 * do not generate release events so we have to do it ourselves.
887 */
888 static unsigned int atkbd_amilo_pa1510_forced_release_keys[] = {
889 0xb0, 0xae, -1U
890 };
891
892 /*
893 * Amilo Pi 3525 key release for Fn+Volume keys not working
894 */
895 static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = {
896 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U
897 };
898
899 /*
900 * Amilo Xi 3650 key release for light touch bar not working
901 */
902 static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
903 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U
904 };
905
906 /*
907 * Soltech TA12 system with broken key release on volume keys and mute key
908 */
909 static unsigned int atkdb_soltech_ta12_forced_release_keys[] = {
910 0xa0, 0xae, 0xb0, -1U
911 };
912
913 /*
914 * atkbd_set_keycode_table() initializes keyboard's keycode table
915 * according to the selected scancode set
916 */
917
918 static void atkbd_set_keycode_table(struct atkbd *atkbd)
919 {
920 unsigned int scancode;
921 int i, j;
922
923 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
924 bitmap_zero(atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
925
926 if (atkbd->translated) {
927 for (i = 0; i < 128; i++) {
928 scancode = atkbd_unxlate_table[i];
929 atkbd->keycode[i] = atkbd_set2_keycode[scancode];
930 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
931 if (atkbd->scroll)
932 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
933 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
934 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
935 }
936 } else if (atkbd->set == 3) {
937 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
938 } else {
939 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
940
941 if (atkbd->scroll)
942 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
943 scancode = atkbd_scroll_keys[i].set2;
944 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
945 }
946 }
947
948 /*
949 * HANGEUL and HANJA keys do not send release events so we need to
950 * generate such events ourselves
951 */
952 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
953 atkbd->keycode[scancode] = KEY_HANGEUL;
954 __set_bit(scancode, atkbd->force_release_mask);
955
956 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
957 atkbd->keycode[scancode] = KEY_HANJA;
958 __set_bit(scancode, atkbd->force_release_mask);
959
960 /*
961 * Perform additional fixups
962 */
963 if (atkbd_platform_fixup)
964 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
965 }
966
967 /*
968 * atkbd_set_device_attrs() sets up keyboard's input device structure
969 */
970
971 static void atkbd_set_device_attrs(struct atkbd *atkbd)
972 {
973 struct input_dev *input_dev = atkbd->dev;
974 int i;
975
976 if (atkbd->extra)
977 snprintf(atkbd->name, sizeof(atkbd->name),
978 "AT Set 2 Extra keyboard");
979 else
980 snprintf(atkbd->name, sizeof(atkbd->name),
981 "AT %s Set %d keyboard",
982 atkbd->translated ? "Translated" : "Raw", atkbd->set);
983
984 snprintf(atkbd->phys, sizeof(atkbd->phys),
985 "%s/input0", atkbd->ps2dev.serio->phys);
986
987 input_dev->name = atkbd->name;
988 input_dev->phys = atkbd->phys;
989 input_dev->id.bustype = BUS_I8042;
990 input_dev->id.vendor = 0x0001;
991 input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
992 input_dev->id.version = atkbd->id;
993 input_dev->event = atkbd_event;
994 input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
995
996 input_set_drvdata(input_dev, atkbd);
997
998 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
999 BIT_MASK(EV_MSC);
1000
1001 if (atkbd->write) {
1002 input_dev->evbit[0] |= BIT_MASK(EV_LED);
1003 input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
1004 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
1005 }
1006
1007 if (atkbd->extra)
1008 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
1009 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
1010 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
1011
1012 if (!atkbd->softrepeat) {
1013 input_dev->rep[REP_DELAY] = 250;
1014 input_dev->rep[REP_PERIOD] = 33;
1015 }
1016
1017 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
1018 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
1019
1020 if (atkbd->scroll) {
1021 input_dev->evbit[0] |= BIT_MASK(EV_REL);
1022 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
1023 BIT_MASK(REL_HWHEEL);
1024 __set_bit(BTN_MIDDLE, input_dev->keybit);
1025 }
1026
1027 input_dev->keycode = atkbd->keycode;
1028 input_dev->keycodesize = sizeof(unsigned short);
1029 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
1030
1031 for (i = 0; i < ATKBD_KEYMAP_SIZE; i++)
1032 if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL)
1033 __set_bit(atkbd->keycode[i], input_dev->keybit);
1034 }
1035
1036 /*
1037 * atkbd_connect() is called when the serio module finds an interface
1038 * that isn't handled yet by an appropriate device driver. We check if
1039 * there is an AT keyboard out there and if yes, we register ourselves
1040 * to the input module.
1041 */
1042
1043 static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
1044 {
1045 struct atkbd *atkbd;
1046 struct input_dev *dev;
1047 int err = -ENOMEM;
1048
1049 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
1050 dev = input_allocate_device();
1051 if (!atkbd || !dev)
1052 goto fail1;
1053
1054 atkbd->dev = dev;
1055 ps2_init(&atkbd->ps2dev, serio);
1056 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
1057 mutex_init(&atkbd->event_mutex);
1058
1059 switch (serio->id.type) {
1060
1061 case SERIO_8042_XL:
1062 atkbd->translated = 1;
1063 case SERIO_8042:
1064 if (serio->write)
1065 atkbd->write = 1;
1066 break;
1067 }
1068
1069 atkbd->softraw = atkbd_softraw;
1070 atkbd->softrepeat = atkbd_softrepeat;
1071 atkbd->scroll = atkbd_scroll;
1072
1073 if (atkbd->softrepeat)
1074 atkbd->softraw = 1;
1075
1076 serio_set_drvdata(serio, atkbd);
1077
1078 err = serio_open(serio, drv);
1079 if (err)
1080 goto fail2;
1081
1082 if (atkbd->write) {
1083
1084 if (atkbd_probe(atkbd)) {
1085 err = -ENODEV;
1086 goto fail3;
1087 }
1088
1089 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
1090 atkbd_activate(atkbd);
1091
1092 } else {
1093 atkbd->set = 2;
1094 atkbd->id = 0xab00;
1095 }
1096
1097 atkbd_set_keycode_table(atkbd);
1098 atkbd_set_device_attrs(atkbd);
1099
1100 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group);
1101 if (err)
1102 goto fail3;
1103
1104 atkbd_enable(atkbd);
1105
1106 err = input_register_device(atkbd->dev);
1107 if (err)
1108 goto fail4;
1109
1110 return 0;
1111
1112 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
1113 fail3: serio_close(serio);
1114 fail2: serio_set_drvdata(serio, NULL);
1115 fail1: input_free_device(dev);
1116 kfree(atkbd);
1117 return err;
1118 }
1119
1120 /*
1121 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1122 * most likely called on resume.
1123 */
1124
1125 static int atkbd_reconnect(struct serio *serio)
1126 {
1127 struct atkbd *atkbd = serio_get_drvdata(serio);
1128 struct serio_driver *drv = serio->drv;
1129
1130 if (!atkbd || !drv) {
1131 printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
1132 return -1;
1133 }
1134
1135 atkbd_disable(atkbd);
1136
1137 if (atkbd->write) {
1138 if (atkbd_probe(atkbd))
1139 return -1;
1140 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
1141 return -1;
1142
1143 atkbd_activate(atkbd);
1144 }
1145
1146 atkbd_enable(atkbd);
1147
1148 return 0;
1149 }
1150
1151 static struct serio_device_id atkbd_serio_ids[] = {
1152 {
1153 .type = SERIO_8042,
1154 .proto = SERIO_ANY,
1155 .id = SERIO_ANY,
1156 .extra = SERIO_ANY,
1157 },
1158 {
1159 .type = SERIO_8042_XL,
1160 .proto = SERIO_ANY,
1161 .id = SERIO_ANY,
1162 .extra = SERIO_ANY,
1163 },
1164 {
1165 .type = SERIO_RS232,
1166 .proto = SERIO_PS2SER,
1167 .id = SERIO_ANY,
1168 .extra = SERIO_ANY,
1169 },
1170 { 0 }
1171 };
1172
1173 MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1174
1175 static struct serio_driver atkbd_drv = {
1176 .driver = {
1177 .name = "atkbd",
1178 },
1179 .description = DRIVER_DESC,
1180 .id_table = atkbd_serio_ids,
1181 .interrupt = atkbd_interrupt,
1182 .connect = atkbd_connect,
1183 .reconnect = atkbd_reconnect,
1184 .disconnect = atkbd_disconnect,
1185 .cleanup = atkbd_cleanup,
1186 };
1187
1188 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1189 ssize_t (*handler)(struct atkbd *, char *))
1190 {
1191 struct serio *serio = to_serio_port(dev);
1192 int retval;
1193
1194 retval = serio_pin_driver(serio);
1195 if (retval)
1196 return retval;
1197
1198 if (serio->drv != &atkbd_drv) {
1199 retval = -ENODEV;
1200 goto out;
1201 }
1202
1203 retval = handler((struct atkbd *)serio_get_drvdata(serio), buf);
1204
1205 out:
1206 serio_unpin_driver(serio);
1207 return retval;
1208 }
1209
1210 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1211 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1212 {
1213 struct serio *serio = to_serio_port(dev);
1214 struct atkbd *atkbd;
1215 int retval;
1216
1217 retval = serio_pin_driver(serio);
1218 if (retval)
1219 return retval;
1220
1221 if (serio->drv != &atkbd_drv) {
1222 retval = -ENODEV;
1223 goto out;
1224 }
1225
1226 atkbd = serio_get_drvdata(serio);
1227 atkbd_disable(atkbd);
1228 retval = handler(atkbd, buf, count);
1229 atkbd_enable(atkbd);
1230
1231 out:
1232 serio_unpin_driver(serio);
1233 return retval;
1234 }
1235
1236 static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1237 {
1238 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1239 }
1240
1241 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1242 {
1243 struct input_dev *old_dev, *new_dev;
1244 unsigned long value;
1245 int err;
1246 unsigned char old_extra, old_set;
1247
1248 if (!atkbd->write)
1249 return -EIO;
1250
1251 if (strict_strtoul(buf, 10, &value) || value > 1)
1252 return -EINVAL;
1253
1254 if (atkbd->extra != value) {
1255 /*
1256 * Since device's properties will change we need to
1257 * unregister old device. But allocate and register
1258 * new one first to make sure we have it.
1259 */
1260 old_dev = atkbd->dev;
1261 old_extra = atkbd->extra;
1262 old_set = atkbd->set;
1263
1264 new_dev = input_allocate_device();
1265 if (!new_dev)
1266 return -ENOMEM;
1267
1268 atkbd->dev = new_dev;
1269 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
1270 atkbd_activate(atkbd);
1271 atkbd_set_keycode_table(atkbd);
1272 atkbd_set_device_attrs(atkbd);
1273
1274 err = input_register_device(atkbd->dev);
1275 if (err) {
1276 input_free_device(new_dev);
1277
1278 atkbd->dev = old_dev;
1279 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1280 atkbd_set_keycode_table(atkbd);
1281 atkbd_set_device_attrs(atkbd);
1282
1283 return err;
1284 }
1285 input_unregister_device(old_dev);
1286
1287 }
1288 return count;
1289 }
1290
1291 static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf)
1292 {
1293 size_t len = bitmap_scnlistprintf(buf, PAGE_SIZE - 2,
1294 atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1295
1296 buf[len++] = '\n';
1297 buf[len] = '\0';
1298
1299 return len;
1300 }
1301
1302 static ssize_t atkbd_set_force_release(struct atkbd *atkbd,
1303 const char *buf, size_t count)
1304 {
1305 /* 64 bytes on stack should be acceptable */
1306 DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE);
1307 int err;
1308
1309 err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE);
1310 if (err)
1311 return err;
1312
1313 memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask));
1314 return count;
1315 }
1316
1317
1318 static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1319 {
1320 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1321 }
1322
1323 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1324 {
1325 struct input_dev *old_dev, *new_dev;
1326 unsigned long value;
1327 int err;
1328 unsigned char old_scroll;
1329
1330 if (strict_strtoul(buf, 10, &value) || value > 1)
1331 return -EINVAL;
1332
1333 if (atkbd->scroll != value) {
1334 old_dev = atkbd->dev;
1335 old_scroll = atkbd->scroll;
1336
1337 new_dev = input_allocate_device();
1338 if (!new_dev)
1339 return -ENOMEM;
1340
1341 atkbd->dev = new_dev;
1342 atkbd->scroll = value;
1343 atkbd_set_keycode_table(atkbd);
1344 atkbd_set_device_attrs(atkbd);
1345
1346 err = input_register_device(atkbd->dev);
1347 if (err) {
1348 input_free_device(new_dev);
1349
1350 atkbd->scroll = old_scroll;
1351 atkbd->dev = old_dev;
1352 atkbd_set_keycode_table(atkbd);
1353 atkbd_set_device_attrs(atkbd);
1354
1355 return err;
1356 }
1357 input_unregister_device(old_dev);
1358 }
1359 return count;
1360 }
1361
1362 static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1363 {
1364 return sprintf(buf, "%d\n", atkbd->set);
1365 }
1366
1367 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1368 {
1369 struct input_dev *old_dev, *new_dev;
1370 unsigned long value;
1371 int err;
1372 unsigned char old_set, old_extra;
1373
1374 if (!atkbd->write)
1375 return -EIO;
1376
1377 if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3))
1378 return -EINVAL;
1379
1380 if (atkbd->set != value) {
1381 old_dev = atkbd->dev;
1382 old_extra = atkbd->extra;
1383 old_set = atkbd->set;
1384
1385 new_dev = input_allocate_device();
1386 if (!new_dev)
1387 return -ENOMEM;
1388
1389 atkbd->dev = new_dev;
1390 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
1391 atkbd_activate(atkbd);
1392 atkbd_set_keycode_table(atkbd);
1393 atkbd_set_device_attrs(atkbd);
1394
1395 err = input_register_device(atkbd->dev);
1396 if (err) {
1397 input_free_device(new_dev);
1398
1399 atkbd->dev = old_dev;
1400 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1401 atkbd_set_keycode_table(atkbd);
1402 atkbd_set_device_attrs(atkbd);
1403
1404 return err;
1405 }
1406 input_unregister_device(old_dev);
1407 }
1408 return count;
1409 }
1410
1411 static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1412 {
1413 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1414 }
1415
1416 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1417 {
1418 struct input_dev *old_dev, *new_dev;
1419 unsigned long value;
1420 int err;
1421 unsigned char old_softrepeat, old_softraw;
1422
1423 if (!atkbd->write)
1424 return -EIO;
1425
1426 if (strict_strtoul(buf, 10, &value) || value > 1)
1427 return -EINVAL;
1428
1429 if (atkbd->softrepeat != value) {
1430 old_dev = atkbd->dev;
1431 old_softrepeat = atkbd->softrepeat;
1432 old_softraw = atkbd->softraw;
1433
1434 new_dev = input_allocate_device();
1435 if (!new_dev)
1436 return -ENOMEM;
1437
1438 atkbd->dev = new_dev;
1439 atkbd->softrepeat = value;
1440 if (atkbd->softrepeat)
1441 atkbd->softraw = 1;
1442 atkbd_set_device_attrs(atkbd);
1443
1444 err = input_register_device(atkbd->dev);
1445 if (err) {
1446 input_free_device(new_dev);
1447
1448 atkbd->dev = old_dev;
1449 atkbd->softrepeat = old_softrepeat;
1450 atkbd->softraw = old_softraw;
1451 atkbd_set_device_attrs(atkbd);
1452
1453 return err;
1454 }
1455 input_unregister_device(old_dev);
1456 }
1457 return count;
1458 }
1459
1460
1461 static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1462 {
1463 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1464 }
1465
1466 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1467 {
1468 struct input_dev *old_dev, *new_dev;
1469 unsigned long value;
1470 int err;
1471 unsigned char old_softraw;
1472
1473 if (strict_strtoul(buf, 10, &value) || value > 1)
1474 return -EINVAL;
1475
1476 if (atkbd->softraw != value) {
1477 old_dev = atkbd->dev;
1478 old_softraw = atkbd->softraw;
1479
1480 new_dev = input_allocate_device();
1481 if (!new_dev)
1482 return -ENOMEM;
1483
1484 atkbd->dev = new_dev;
1485 atkbd->softraw = value;
1486 atkbd_set_device_attrs(atkbd);
1487
1488 err = input_register_device(atkbd->dev);
1489 if (err) {
1490 input_free_device(new_dev);
1491
1492 atkbd->dev = old_dev;
1493 atkbd->softraw = old_softraw;
1494 atkbd_set_device_attrs(atkbd);
1495
1496 return err;
1497 }
1498 input_unregister_device(old_dev);
1499 }
1500 return count;
1501 }
1502
1503 static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1504 {
1505 return sprintf(buf, "%lu\n", atkbd->err_count);
1506 }
1507
1508 static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
1509 {
1510 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1511 atkbd_platform_fixup_data = id->driver_data;
1512
1513 return 0;
1514 }
1515
1516 static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
1517 {
1518 .ident = "Dell Laptop",
1519 .matches = {
1520 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1521 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1522 },
1523 .callback = atkbd_setup_forced_release,
1524 .driver_data = atkbd_dell_laptop_forced_release_keys,
1525 },
1526 {
1527 .ident = "Dell Laptop",
1528 .matches = {
1529 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1530 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1531 },
1532 .callback = atkbd_setup_forced_release,
1533 .driver_data = atkbd_dell_laptop_forced_release_keys,
1534 },
1535 {
1536 .ident = "HP 2133",
1537 .matches = {
1538 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1539 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1540 },
1541 .callback = atkbd_setup_forced_release,
1542 .driver_data = atkbd_hp_forced_release_keys,
1543 },
1544 {
1545 .ident = "HP Pavilion ZV6100",
1546 .matches = {
1547 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1548 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1549 },
1550 .callback = atkbd_setup_forced_release,
1551 .driver_data = atkbd_hp_zv6100_forced_release_keys,
1552 },
1553 {
1554 .ident = "HP Presario R4000",
1555 .matches = {
1556 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1557 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"),
1558 },
1559 .callback = atkbd_setup_forced_release,
1560 .driver_data = atkbd_hp_r4000_forced_release_keys,
1561 },
1562 {
1563 .ident = "HP Presario R4100",
1564 .matches = {
1565 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1566 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"),
1567 },
1568 .callback = atkbd_setup_forced_release,
1569 .driver_data = atkbd_hp_r4000_forced_release_keys,
1570 },
1571 {
1572 .ident = "HP Presario R4200",
1573 .matches = {
1574 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1575 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"),
1576 },
1577 .callback = atkbd_setup_forced_release,
1578 .driver_data = atkbd_hp_r4000_forced_release_keys,
1579 },
1580 {
1581 .ident = "Inventec Symphony",
1582 .matches = {
1583 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1584 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1585 },
1586 .callback = atkbd_setup_forced_release,
1587 .driver_data = atkbd_inventec_forced_release_keys,
1588 },
1589 {
1590 .ident = "Samsung NC10",
1591 .matches = {
1592 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1593 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1594 },
1595 .callback = atkbd_setup_forced_release,
1596 .driver_data = atkbd_samsung_forced_release_keys,
1597 },
1598 {
1599 .ident = "Samsung NC20",
1600 .matches = {
1601 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1602 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
1603 },
1604 .callback = atkbd_setup_forced_release,
1605 .driver_data = atkbd_samsung_forced_release_keys,
1606 },
1607 {
1608 .ident = "Samsung SQ45S70S",
1609 .matches = {
1610 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1611 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
1612 },
1613 .callback = atkbd_setup_forced_release,
1614 .driver_data = atkbd_samsung_forced_release_keys,
1615 },
1616 {
1617 .ident = "Fujitsu Amilo PA 1510",
1618 .matches = {
1619 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1620 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1621 },
1622 .callback = atkbd_setup_forced_release,
1623 .driver_data = atkbd_amilo_pa1510_forced_release_keys,
1624 },
1625 {
1626 .ident = "Fujitsu Amilo Pi 3525",
1627 .matches = {
1628 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1629 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"),
1630 },
1631 .callback = atkbd_setup_forced_release,
1632 .driver_data = atkbd_amilo_pi3525_forced_release_keys,
1633 },
1634 {
1635 .ident = "Fujitsu Amilo Xi 3650",
1636 .matches = {
1637 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1638 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"),
1639 },
1640 .callback = atkbd_setup_forced_release,
1641 .driver_data = atkbd_amilo_xi3650_forced_release_keys,
1642 },
1643 {
1644 .ident = "Soltech Corporation TA12",
1645 .matches = {
1646 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"),
1647 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"),
1648 },
1649 .callback = atkbd_setup_forced_release,
1650 .driver_data = atkdb_soltech_ta12_forced_release_keys,
1651 },
1652 { }
1653 };
1654
1655 static int __init atkbd_init(void)
1656 {
1657 dmi_check_system(atkbd_dmi_quirk_table);
1658
1659 return serio_register_driver(&atkbd_drv);
1660 }
1661
1662 static void __exit atkbd_exit(void)
1663 {
1664 serio_unregister_driver(&atkbd_drv);
1665 }
1666
1667 module_init(atkbd_init);
1668 module_exit(atkbd_exit);
Linux 2.6 libata-dev (mirror)