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Merge branch 'oprofile-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[deliverable/linux.git] / drivers / input / keyboard / atkbd.c
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 static const unsigned short atkbd_set2_keycode[512] = {
72
73 #ifdef CONFIG_KEYBOARD_ATKBD_HP_KEYCODES
74
75 /* XXX: need a more general approach */
76
77 #include "hpps2atkbd.h" /* include the keyboard scancodes */
78
79 #else
80 0, 67, 65, 63, 61, 59, 60, 88, 0, 68, 66, 64, 62, 15, 41,117,
81 0, 56, 42, 93, 29, 16, 2, 0, 0, 0, 44, 31, 30, 17, 3, 0,
82 0, 46, 45, 32, 18, 5, 4, 95, 0, 57, 47, 33, 20, 19, 6,183,
83 0, 49, 48, 35, 34, 21, 7,184, 0, 0, 50, 36, 22, 8, 9,185,
84 0, 51, 37, 23, 24, 11, 10, 0, 0, 52, 53, 38, 39, 25, 12, 0,
85 0, 89, 40, 0, 26, 13, 0, 0, 58, 54, 28, 27, 0, 43, 0, 85,
86 0, 86, 91, 90, 92, 0, 14, 94, 0, 79,124, 75, 71,121, 0, 0,
87 82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99,
88
89 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
90 217,100,255, 0, 97,165, 0, 0,156, 0, 0, 0, 0, 0, 0,125,
91 173,114, 0,113, 0, 0, 0,126,128, 0, 0,140, 0, 0, 0,127,
92 159, 0,115, 0,164, 0, 0,116,158, 0,172,166, 0, 0, 0,142,
93 157, 0, 0, 0, 0, 0, 0, 0,155, 0, 98, 0, 0,163, 0, 0,
94 226, 0, 0, 0, 0, 0, 0, 0, 0,255, 96, 0, 0, 0,143, 0,
95 0, 0, 0, 0, 0, 0, 0, 0, 0,107, 0,105,102, 0, 0,112,
96 110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119, 0,
97
98 0, 0, 0, 65, 99,
99 #endif
100 };
101
102 static const unsigned short atkbd_set3_keycode[512] = {
103
104 0, 0, 0, 0, 0, 0, 0, 59, 1,138,128,129,130, 15, 41, 60,
105 131, 29, 42, 86, 58, 16, 2, 61,133, 56, 44, 31, 30, 17, 3, 62,
106 134, 46, 45, 32, 18, 5, 4, 63,135, 57, 47, 33, 20, 19, 6, 64,
107 136, 49, 48, 35, 34, 21, 7, 65,137,100, 50, 36, 22, 8, 9, 66,
108 125, 51, 37, 23, 24, 11, 10, 67,126, 52, 53, 38, 39, 25, 12, 68,
109 113,114, 40, 43, 26, 13, 87, 99, 97, 54, 28, 27, 43, 43, 88, 70,
110 108,105,119,103,111,107, 14,110, 0, 79,106, 75, 71,109,102,104,
111 82, 83, 80, 76, 77, 72, 69, 98, 0, 96, 81, 0, 78, 73, 55,183,
112
113 184,185,186,187, 74, 94, 92, 93, 0, 0, 0,125,126,127,112, 0,
114 0,139,172,163,165,115,152,172,166,140,160,154,113,114,167,168,
115 148,149,147,140
116 };
117
118 static const unsigned short atkbd_unxlate_table[128] = {
119 0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13,
120 21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27,
121 35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42,
122 50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88, 5, 6, 4, 12, 3,
123 11, 2, 10, 1, 9,119,126,108,117,125,123,107,115,116,121,105,
124 114,122,112,113,127, 96, 97,120, 7, 15, 23, 31, 39, 47, 55, 63,
125 71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111,
126 19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110
127 };
128
129 #define ATKBD_CMD_SETLEDS 0x10ed
130 #define ATKBD_CMD_GSCANSET 0x11f0
131 #define ATKBD_CMD_SSCANSET 0x10f0
132 #define ATKBD_CMD_GETID 0x02f2
133 #define ATKBD_CMD_SETREP 0x10f3
134 #define ATKBD_CMD_ENABLE 0x00f4
135 #define ATKBD_CMD_RESET_DIS 0x00f5
136 #define ATKBD_CMD_SETALL_MBR 0x00fa
137 #define ATKBD_CMD_RESET_BAT 0x02ff
138 #define ATKBD_CMD_RESEND 0x00fe
139 #define ATKBD_CMD_EX_ENABLE 0x10ea
140 #define ATKBD_CMD_EX_SETLEDS 0x20eb
141 #define ATKBD_CMD_OK_GETID 0x02e8
142
143 #define ATKBD_RET_ACK 0xfa
144 #define ATKBD_RET_NAK 0xfe
145 #define ATKBD_RET_BAT 0xaa
146 #define ATKBD_RET_EMUL0 0xe0
147 #define ATKBD_RET_EMUL1 0xe1
148 #define ATKBD_RET_RELEASE 0xf0
149 #define ATKBD_RET_HANJA 0xf1
150 #define ATKBD_RET_HANGEUL 0xf2
151 #define ATKBD_RET_ERR 0xff
152
153 #define ATKBD_KEY_UNKNOWN 0
154 #define ATKBD_KEY_NULL 255
155
156 #define ATKBD_SCR_1 254
157 #define ATKBD_SCR_2 253
158 #define ATKBD_SCR_4 252
159 #define ATKBD_SCR_8 251
160 #define ATKBD_SCR_CLICK 250
161 #define ATKBD_SCR_LEFT 249
162 #define ATKBD_SCR_RIGHT 248
163
164 #define ATKBD_SPECIAL ATKBD_SCR_RIGHT
165
166 #define ATKBD_LED_EVENT_BIT 0
167 #define ATKBD_REP_EVENT_BIT 1
168
169 #define ATKBD_XL_ERR 0x01
170 #define ATKBD_XL_BAT 0x02
171 #define ATKBD_XL_ACK 0x04
172 #define ATKBD_XL_NAK 0x08
173 #define ATKBD_XL_HANGEUL 0x10
174 #define ATKBD_XL_HANJA 0x20
175
176 static const struct {
177 unsigned char keycode;
178 unsigned char set2;
179 } atkbd_scroll_keys[] = {
180 { ATKBD_SCR_1, 0xc5 },
181 { ATKBD_SCR_2, 0x9d },
182 { ATKBD_SCR_4, 0xa4 },
183 { ATKBD_SCR_8, 0x9b },
184 { ATKBD_SCR_CLICK, 0xe0 },
185 { ATKBD_SCR_LEFT, 0xcb },
186 { ATKBD_SCR_RIGHT, 0xd2 },
187 };
188
189 /*
190 * The atkbd control structure
191 */
192
193 struct atkbd {
194
195 struct ps2dev ps2dev;
196 struct input_dev *dev;
197
198 /* Written only during init */
199 char name[64];
200 char phys[32];
201
202 unsigned short id;
203 unsigned short keycode[512];
204 DECLARE_BITMAP(force_release_mask, 512);
205 unsigned char set;
206 unsigned char translated;
207 unsigned char extra;
208 unsigned char write;
209 unsigned char softrepeat;
210 unsigned char softraw;
211 unsigned char scroll;
212 unsigned char enabled;
213
214 /* Accessed only from interrupt */
215 unsigned char emul;
216 unsigned char resend;
217 unsigned char release;
218 unsigned long xl_bit;
219 unsigned int last;
220 unsigned long time;
221 unsigned long err_count;
222
223 struct delayed_work event_work;
224 unsigned long event_jiffies;
225 struct mutex event_mutex;
226 unsigned long event_mask;
227 };
228
229 /*
230 * System-specific ketymap fixup routine
231 */
232 static void (*atkbd_platform_fixup)(struct atkbd *, const void *data);
233 static void *atkbd_platform_fixup_data;
234
235 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
236 ssize_t (*handler)(struct atkbd *, char *));
237 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
238 ssize_t (*handler)(struct atkbd *, const char *, size_t));
239 #define ATKBD_DEFINE_ATTR(_name) \
240 static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
241 static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \
242 static ssize_t atkbd_do_show_##_name(struct device *d, \
243 struct device_attribute *attr, char *b) \
244 { \
245 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
246 } \
247 static ssize_t atkbd_do_set_##_name(struct device *d, \
248 struct device_attribute *attr, const char *b, size_t s) \
249 { \
250 return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \
251 } \
252 static struct device_attribute atkbd_attr_##_name = \
253 __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name);
254
255 ATKBD_DEFINE_ATTR(extra);
256 ATKBD_DEFINE_ATTR(scroll);
257 ATKBD_DEFINE_ATTR(set);
258 ATKBD_DEFINE_ATTR(softrepeat);
259 ATKBD_DEFINE_ATTR(softraw);
260
261 #define ATKBD_DEFINE_RO_ATTR(_name) \
262 static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
263 static ssize_t atkbd_do_show_##_name(struct device *d, \
264 struct device_attribute *attr, char *b) \
265 { \
266 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
267 } \
268 static struct device_attribute atkbd_attr_##_name = \
269 __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL);
270
271 ATKBD_DEFINE_RO_ATTR(err_count);
272
273 static struct attribute *atkbd_attributes[] = {
274 &atkbd_attr_extra.attr,
275 &atkbd_attr_scroll.attr,
276 &atkbd_attr_set.attr,
277 &atkbd_attr_softrepeat.attr,
278 &atkbd_attr_softraw.attr,
279 &atkbd_attr_err_count.attr,
280 NULL
281 };
282
283 static struct attribute_group atkbd_attribute_group = {
284 .attrs = atkbd_attributes,
285 };
286
287 static const unsigned int xl_table[] = {
288 ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK,
289 ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL,
290 };
291
292 /*
293 * Checks if we should mangle the scancode to extract 'release' bit
294 * in translated mode.
295 */
296 static int atkbd_need_xlate(unsigned long xl_bit, unsigned char code)
297 {
298 int i;
299
300 if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1)
301 return 0;
302
303 for (i = 0; i < ARRAY_SIZE(xl_table); i++)
304 if (code == xl_table[i])
305 return test_bit(i, &xl_bit);
306
307 return 1;
308 }
309
310 /*
311 * Calculates new value of xl_bit so the driver can distinguish
312 * between make/break pair of scancodes for select keys and PS/2
313 * protocol responses.
314 */
315 static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code)
316 {
317 int i;
318
319 for (i = 0; i < ARRAY_SIZE(xl_table); i++) {
320 if (!((code ^ xl_table[i]) & 0x7f)) {
321 if (code & 0x80)
322 __clear_bit(i, &atkbd->xl_bit);
323 else
324 __set_bit(i, &atkbd->xl_bit);
325 break;
326 }
327 }
328 }
329
330 /*
331 * Encode the scancode, 0xe0 prefix, and high bit into a single integer,
332 * keeping kernel 2.4 compatibility for set 2
333 */
334 static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code)
335 {
336 if (atkbd->set == 3) {
337 if (atkbd->emul == 1)
338 code |= 0x100;
339 } else {
340 code = (code & 0x7f) | ((code & 0x80) << 1);
341 if (atkbd->emul == 1)
342 code |= 0x80;
343 }
344
345 return code;
346 }
347
348 /*
349 * atkbd_interrupt(). Here takes place processing of data received from
350 * the keyboard into events.
351 */
352
353 static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
354 unsigned int flags)
355 {
356 struct atkbd *atkbd = serio_get_drvdata(serio);
357 struct input_dev *dev = atkbd->dev;
358 unsigned int code = data;
359 int scroll = 0, hscroll = 0, click = -1;
360 int value;
361 unsigned short keycode;
362
363 #ifdef ATKBD_DEBUG
364 printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags);
365 #endif
366
367 #if !defined(__i386__) && !defined (__x86_64__)
368 if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
369 printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags);
370 serio_write(serio, ATKBD_CMD_RESEND);
371 atkbd->resend = 1;
372 goto out;
373 }
374
375 if (!flags && data == ATKBD_RET_ACK)
376 atkbd->resend = 0;
377 #endif
378
379 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK))
380 if (ps2_handle_ack(&atkbd->ps2dev, data))
381 goto out;
382
383 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD))
384 if (ps2_handle_response(&atkbd->ps2dev, data))
385 goto out;
386
387 if (!atkbd->enabled)
388 goto out;
389
390 input_event(dev, EV_MSC, MSC_RAW, code);
391
392 if (atkbd->translated) {
393
394 if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) {
395 atkbd->release = code >> 7;
396 code &= 0x7f;
397 }
398
399 if (!atkbd->emul)
400 atkbd_calculate_xl_bit(atkbd, data);
401 }
402
403 switch (code) {
404 case ATKBD_RET_BAT:
405 atkbd->enabled = 0;
406 serio_reconnect(atkbd->ps2dev.serio);
407 goto out;
408 case ATKBD_RET_EMUL0:
409 atkbd->emul = 1;
410 goto out;
411 case ATKBD_RET_EMUL1:
412 atkbd->emul = 2;
413 goto out;
414 case ATKBD_RET_RELEASE:
415 atkbd->release = 1;
416 goto out;
417 case ATKBD_RET_ACK:
418 case ATKBD_RET_NAK:
419 if (printk_ratelimit())
420 printk(KERN_WARNING "atkbd.c: Spurious %s on %s. "
421 "Some program might be trying access hardware directly.\n",
422 data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
423 goto out;
424 case ATKBD_RET_ERR:
425 atkbd->err_count++;
426 #ifdef ATKBD_DEBUG
427 printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys);
428 #endif
429 goto out;
430 }
431
432 code = atkbd_compat_scancode(atkbd, code);
433
434 if (atkbd->emul && --atkbd->emul)
435 goto out;
436
437 keycode = atkbd->keycode[code];
438
439 if (keycode != ATKBD_KEY_NULL)
440 input_event(dev, EV_MSC, MSC_SCAN, code);
441
442 switch (keycode) {
443 case ATKBD_KEY_NULL:
444 break;
445 case ATKBD_KEY_UNKNOWN:
446 printk(KERN_WARNING
447 "atkbd.c: Unknown key %s (%s set %d, code %#x on %s).\n",
448 atkbd->release ? "released" : "pressed",
449 atkbd->translated ? "translated" : "raw",
450 atkbd->set, code, serio->phys);
451 printk(KERN_WARNING
452 "atkbd.c: Use 'setkeycodes %s%02x <keycode>' to make it known.\n",
453 code & 0x80 ? "e0" : "", code & 0x7f);
454 input_sync(dev);
455 break;
456 case ATKBD_SCR_1:
457 scroll = 1 - atkbd->release * 2;
458 break;
459 case ATKBD_SCR_2:
460 scroll = 2 - atkbd->release * 4;
461 break;
462 case ATKBD_SCR_4:
463 scroll = 4 - atkbd->release * 8;
464 break;
465 case ATKBD_SCR_8:
466 scroll = 8 - atkbd->release * 16;
467 break;
468 case ATKBD_SCR_CLICK:
469 click = !atkbd->release;
470 break;
471 case ATKBD_SCR_LEFT:
472 hscroll = -1;
473 break;
474 case ATKBD_SCR_RIGHT:
475 hscroll = 1;
476 break;
477 default:
478 if (atkbd->release) {
479 value = 0;
480 atkbd->last = 0;
481 } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) {
482 /* Workaround Toshiba laptop multiple keypress */
483 value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2;
484 } else {
485 value = 1;
486 atkbd->last = code;
487 atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2;
488 }
489
490 input_event(dev, EV_KEY, keycode, value);
491 input_sync(dev);
492
493 if (value && test_bit(code, atkbd->force_release_mask)) {
494 input_report_key(dev, keycode, 0);
495 input_sync(dev);
496 }
497 }
498
499 if (atkbd->scroll) {
500 if (click != -1)
501 input_report_key(dev, BTN_MIDDLE, click);
502 input_report_rel(dev, REL_WHEEL, scroll);
503 input_report_rel(dev, REL_HWHEEL, hscroll);
504 input_sync(dev);
505 }
506
507 atkbd->release = 0;
508 out:
509 return IRQ_HANDLED;
510 }
511
512 static int atkbd_set_repeat_rate(struct atkbd *atkbd)
513 {
514 const short period[32] =
515 { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125,
516 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 };
517 const short delay[4] =
518 { 250, 500, 750, 1000 };
519
520 struct input_dev *dev = atkbd->dev;
521 unsigned char param;
522 int i = 0, j = 0;
523
524 while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD])
525 i++;
526 dev->rep[REP_PERIOD] = period[i];
527
528 while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY])
529 j++;
530 dev->rep[REP_DELAY] = delay[j];
531
532 param = i | (j << 5);
533 return ps2_command(&atkbd->ps2dev, &param, ATKBD_CMD_SETREP);
534 }
535
536 static int atkbd_set_leds(struct atkbd *atkbd)
537 {
538 struct input_dev *dev = atkbd->dev;
539 unsigned char param[2];
540
541 param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
542 | (test_bit(LED_NUML, dev->led) ? 2 : 0)
543 | (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
544 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
545 return -1;
546
547 if (atkbd->extra) {
548 param[0] = 0;
549 param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
550 | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
551 | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
552 | (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
553 | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
554 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS))
555 return -1;
556 }
557
558 return 0;
559 }
560
561 /*
562 * atkbd_event_work() is used to complete processing of events that
563 * can not be processed by input_event() which is often called from
564 * interrupt context.
565 */
566
567 static void atkbd_event_work(struct work_struct *work)
568 {
569 struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work);
570
571 mutex_lock(&atkbd->event_mutex);
572
573 if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask))
574 atkbd_set_leds(atkbd);
575
576 if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask))
577 atkbd_set_repeat_rate(atkbd);
578
579 mutex_unlock(&atkbd->event_mutex);
580 }
581
582 /*
583 * Schedule switch for execution. We need to throttle requests,
584 * otherwise keyboard may become unresponsive.
585 */
586 static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit)
587 {
588 unsigned long delay = msecs_to_jiffies(50);
589
590 if (time_after(jiffies, atkbd->event_jiffies + delay))
591 delay = 0;
592
593 atkbd->event_jiffies = jiffies;
594 set_bit(event_bit, &atkbd->event_mask);
595 wmb();
596 schedule_delayed_work(&atkbd->event_work, delay);
597 }
598
599 /*
600 * Event callback from the input module. Events that change the state of
601 * the hardware are processed here. If action can not be performed in
602 * interrupt context it is offloaded to atkbd_event_work.
603 */
604
605 static int atkbd_event(struct input_dev *dev,
606 unsigned int type, unsigned int code, int value)
607 {
608 struct atkbd *atkbd = input_get_drvdata(dev);
609
610 if (!atkbd->write)
611 return -1;
612
613 switch (type) {
614
615 case EV_LED:
616 atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT);
617 return 0;
618
619 case EV_REP:
620 if (!atkbd->softrepeat)
621 atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT);
622 return 0;
623 }
624
625 return -1;
626 }
627
628 /*
629 * atkbd_enable() signals that interrupt handler is allowed to
630 * generate input events.
631 */
632
633 static inline void atkbd_enable(struct atkbd *atkbd)
634 {
635 serio_pause_rx(atkbd->ps2dev.serio);
636 atkbd->enabled = 1;
637 serio_continue_rx(atkbd->ps2dev.serio);
638 }
639
640 /*
641 * atkbd_disable() tells input handler that all incoming data except
642 * for ACKs and command response should be dropped.
643 */
644
645 static inline void atkbd_disable(struct atkbd *atkbd)
646 {
647 serio_pause_rx(atkbd->ps2dev.serio);
648 atkbd->enabled = 0;
649 serio_continue_rx(atkbd->ps2dev.serio);
650 }
651
652 /*
653 * atkbd_probe() probes for an AT keyboard on a serio port.
654 */
655
656 static int atkbd_probe(struct atkbd *atkbd)
657 {
658 struct ps2dev *ps2dev = &atkbd->ps2dev;
659 unsigned char param[2];
660
661 /*
662 * Some systems, where the bit-twiddling when testing the io-lines of the
663 * controller may confuse the keyboard need a full reset of the keyboard. On
664 * these systems the BIOS also usually doesn't do it for us.
665 */
666
667 if (atkbd_reset)
668 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT))
669 printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", ps2dev->serio->phys);
670
671 /*
672 * Then we check the keyboard ID. We should get 0xab83 under normal conditions.
673 * Some keyboards report different values, but the first byte is always 0xab or
674 * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
675 * should make sure we don't try to set the LEDs on it.
676 */
677
678 param[0] = param[1] = 0xa5; /* initialize with invalid values */
679 if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) {
680
681 /*
682 * If the get ID command failed, we check if we can at least set the LEDs on
683 * the keyboard. This should work on every keyboard out there. It also turns
684 * the LEDs off, which we want anyway.
685 */
686 param[0] = 0;
687 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
688 return -1;
689 atkbd->id = 0xabba;
690 return 0;
691 }
692
693 if (!ps2_is_keyboard_id(param[0]))
694 return -1;
695
696 atkbd->id = (param[0] << 8) | param[1];
697
698 if (atkbd->id == 0xaca1 && atkbd->translated) {
699 printk(KERN_ERR "atkbd.c: NCD terminal keyboards are only supported on non-translating\n");
700 printk(KERN_ERR "atkbd.c: controllers. Use i8042.direct=1 to disable translation.\n");
701 return -1;
702 }
703
704 return 0;
705 }
706
707 /*
708 * atkbd_select_set checks if a keyboard has a working Set 3 support, and
709 * sets it into that. Unfortunately there are keyboards that can be switched
710 * to Set 3, but don't work well in that (BTC Multimedia ...)
711 */
712
713 static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra)
714 {
715 struct ps2dev *ps2dev = &atkbd->ps2dev;
716 unsigned char param[2];
717
718 atkbd->extra = 0;
719 /*
720 * For known special keyboards we can go ahead and set the correct set.
721 * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and
722 * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards.
723 */
724
725 if (atkbd->translated)
726 return 2;
727
728 if (atkbd->id == 0xaca1) {
729 param[0] = 3;
730 ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET);
731 return 3;
732 }
733
734 if (allow_extra) {
735 param[0] = 0x71;
736 if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) {
737 atkbd->extra = 1;
738 return 2;
739 }
740 }
741
742 if (target_set != 3)
743 return 2;
744
745 if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) {
746 atkbd->id = param[0] << 8 | param[1];
747 return 2;
748 }
749
750 param[0] = 3;
751 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
752 return 2;
753
754 param[0] = 0;
755 if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET))
756 return 2;
757
758 if (param[0] != 3) {
759 param[0] = 2;
760 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
761 return 2;
762 }
763
764 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR);
765
766 return 3;
767 }
768
769 static int atkbd_activate(struct atkbd *atkbd)
770 {
771 struct ps2dev *ps2dev = &atkbd->ps2dev;
772 unsigned char param[1];
773
774 /*
775 * Set the LEDs to a defined state.
776 */
777
778 param[0] = 0;
779 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
780 return -1;
781
782 /*
783 * Set autorepeat to fastest possible.
784 */
785
786 param[0] = 0;
787 if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP))
788 return -1;
789
790 /*
791 * Enable the keyboard to receive keystrokes.
792 */
793
794 if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) {
795 printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n",
796 ps2dev->serio->phys);
797 return -1;
798 }
799
800 return 0;
801 }
802
803 /*
804 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
805 * reboot.
806 */
807
808 static void atkbd_cleanup(struct serio *serio)
809 {
810 struct atkbd *atkbd = serio_get_drvdata(serio);
811
812 atkbd_disable(atkbd);
813 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_BAT);
814 }
815
816
817 /*
818 * atkbd_disconnect() closes and frees.
819 */
820
821 static void atkbd_disconnect(struct serio *serio)
822 {
823 struct atkbd *atkbd = serio_get_drvdata(serio);
824
825 atkbd_disable(atkbd);
826
827 /* make sure we don't have a command in flight */
828 cancel_delayed_work_sync(&atkbd->event_work);
829
830 sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
831 input_unregister_device(atkbd->dev);
832 serio_close(serio);
833 serio_set_drvdata(serio, NULL);
834 kfree(atkbd);
835 }
836
837 /*
838 * generate release events for the keycodes given in data
839 */
840 static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
841 const void *data)
842 {
843 const unsigned int *keys = data;
844 unsigned int i;
845
846 if (atkbd->set == 2)
847 for (i = 0; keys[i] != -1U; i++)
848 __set_bit(keys[i], atkbd->force_release_mask);
849 }
850
851 /*
852 * Most special keys (Fn+F?) on Dell laptops do not generate release
853 * events so we have to do it ourselves.
854 */
855 static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
856 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
857 };
858
859 /*
860 * Perform fixup for HP system that doesn't generate release
861 * for its video switch
862 */
863 static unsigned int atkbd_hp_forced_release_keys[] = {
864 0x94, -1U
865 };
866
867 /*
868 * Inventec system with broken key release on volume keys
869 */
870 static unsigned int atkbd_inventec_forced_release_keys[] = {
871 0xae, 0xb0, -1U
872 };
873
874 /*
875 * Perform fixup for HP Pavilion ZV6100 laptop that doesn't generate release
876 * for its volume buttons
877 */
878 static unsigned int atkbd_hp_zv6100_forced_release_keys[] = {
879 0xae, 0xb0, -1U
880 };
881
882 /*
883 * Samsung NC10,NC20 with Fn+F? key release not working
884 */
885 static unsigned int atkbd_samsung_forced_release_keys[] = {
886 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
887 };
888
889 /*
890 * The volume up and volume down special keys on a Fujitsu Amilo PA 1510 laptop
891 * do not generate release events so we have to do it ourselves.
892 */
893 static unsigned int atkbd_amilo_pa1510_forced_release_keys[] = {
894 0xb0, 0xae, -1U
895 };
896
897 /*
898 * Amilo Xi 3650 key release for light touch bar not working
899 */
900 static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
901 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U
902 };
903
904 /*
905 * atkbd_set_keycode_table() initializes keyboard's keycode table
906 * according to the selected scancode set
907 */
908
909 static void atkbd_set_keycode_table(struct atkbd *atkbd)
910 {
911 unsigned int scancode;
912 int i, j;
913
914 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
915 bitmap_zero(atkbd->force_release_mask, 512);
916
917 if (atkbd->translated) {
918 for (i = 0; i < 128; i++) {
919 scancode = atkbd_unxlate_table[i];
920 atkbd->keycode[i] = atkbd_set2_keycode[scancode];
921 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
922 if (atkbd->scroll)
923 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
924 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
925 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
926 }
927 } else if (atkbd->set == 3) {
928 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
929 } else {
930 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
931
932 if (atkbd->scroll)
933 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
934 scancode = atkbd_scroll_keys[i].set2;
935 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
936 }
937 }
938
939 /*
940 * HANGEUL and HANJA keys do not send release events so we need to
941 * generate such events ourselves
942 */
943 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
944 atkbd->keycode[scancode] = KEY_HANGEUL;
945 __set_bit(scancode, atkbd->force_release_mask);
946
947 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
948 atkbd->keycode[scancode] = KEY_HANJA;
949 __set_bit(scancode, atkbd->force_release_mask);
950
951 /*
952 * Perform additional fixups
953 */
954 if (atkbd_platform_fixup)
955 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
956 }
957
958 /*
959 * atkbd_set_device_attrs() sets up keyboard's input device structure
960 */
961
962 static void atkbd_set_device_attrs(struct atkbd *atkbd)
963 {
964 struct input_dev *input_dev = atkbd->dev;
965 int i;
966
967 if (atkbd->extra)
968 snprintf(atkbd->name, sizeof(atkbd->name),
969 "AT Set 2 Extra keyboard");
970 else
971 snprintf(atkbd->name, sizeof(atkbd->name),
972 "AT %s Set %d keyboard",
973 atkbd->translated ? "Translated" : "Raw", atkbd->set);
974
975 snprintf(atkbd->phys, sizeof(atkbd->phys),
976 "%s/input0", atkbd->ps2dev.serio->phys);
977
978 input_dev->name = atkbd->name;
979 input_dev->phys = atkbd->phys;
980 input_dev->id.bustype = BUS_I8042;
981 input_dev->id.vendor = 0x0001;
982 input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
983 input_dev->id.version = atkbd->id;
984 input_dev->event = atkbd_event;
985 input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
986
987 input_set_drvdata(input_dev, atkbd);
988
989 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
990 BIT_MASK(EV_MSC);
991
992 if (atkbd->write) {
993 input_dev->evbit[0] |= BIT_MASK(EV_LED);
994 input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
995 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
996 }
997
998 if (atkbd->extra)
999 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
1000 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
1001 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
1002
1003 if (!atkbd->softrepeat) {
1004 input_dev->rep[REP_DELAY] = 250;
1005 input_dev->rep[REP_PERIOD] = 33;
1006 }
1007
1008 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
1009 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
1010
1011 if (atkbd->scroll) {
1012 input_dev->evbit[0] |= BIT_MASK(EV_REL);
1013 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
1014 BIT_MASK(REL_HWHEEL);
1015 __set_bit(BTN_MIDDLE, input_dev->keybit);
1016 }
1017
1018 input_dev->keycode = atkbd->keycode;
1019 input_dev->keycodesize = sizeof(unsigned short);
1020 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
1021
1022 for (i = 0; i < 512; i++)
1023 if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL)
1024 __set_bit(atkbd->keycode[i], input_dev->keybit);
1025 }
1026
1027 /*
1028 * atkbd_connect() is called when the serio module finds an interface
1029 * that isn't handled yet by an appropriate device driver. We check if
1030 * there is an AT keyboard out there and if yes, we register ourselves
1031 * to the input module.
1032 */
1033
1034 static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
1035 {
1036 struct atkbd *atkbd;
1037 struct input_dev *dev;
1038 int err = -ENOMEM;
1039
1040 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
1041 dev = input_allocate_device();
1042 if (!atkbd || !dev)
1043 goto fail1;
1044
1045 atkbd->dev = dev;
1046 ps2_init(&atkbd->ps2dev, serio);
1047 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
1048 mutex_init(&atkbd->event_mutex);
1049
1050 switch (serio->id.type) {
1051
1052 case SERIO_8042_XL:
1053 atkbd->translated = 1;
1054 case SERIO_8042:
1055 if (serio->write)
1056 atkbd->write = 1;
1057 break;
1058 }
1059
1060 atkbd->softraw = atkbd_softraw;
1061 atkbd->softrepeat = atkbd_softrepeat;
1062 atkbd->scroll = atkbd_scroll;
1063
1064 if (atkbd->softrepeat)
1065 atkbd->softraw = 1;
1066
1067 serio_set_drvdata(serio, atkbd);
1068
1069 err = serio_open(serio, drv);
1070 if (err)
1071 goto fail2;
1072
1073 if (atkbd->write) {
1074
1075 if (atkbd_probe(atkbd)) {
1076 err = -ENODEV;
1077 goto fail3;
1078 }
1079
1080 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
1081 atkbd_activate(atkbd);
1082
1083 } else {
1084 atkbd->set = 2;
1085 atkbd->id = 0xab00;
1086 }
1087
1088 atkbd_set_keycode_table(atkbd);
1089 atkbd_set_device_attrs(atkbd);
1090
1091 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group);
1092 if (err)
1093 goto fail3;
1094
1095 atkbd_enable(atkbd);
1096
1097 err = input_register_device(atkbd->dev);
1098 if (err)
1099 goto fail4;
1100
1101 return 0;
1102
1103 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
1104 fail3: serio_close(serio);
1105 fail2: serio_set_drvdata(serio, NULL);
1106 fail1: input_free_device(dev);
1107 kfree(atkbd);
1108 return err;
1109 }
1110
1111 /*
1112 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1113 * most likely called on resume.
1114 */
1115
1116 static int atkbd_reconnect(struct serio *serio)
1117 {
1118 struct atkbd *atkbd = serio_get_drvdata(serio);
1119 struct serio_driver *drv = serio->drv;
1120
1121 if (!atkbd || !drv) {
1122 printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
1123 return -1;
1124 }
1125
1126 atkbd_disable(atkbd);
1127
1128 if (atkbd->write) {
1129 if (atkbd_probe(atkbd))
1130 return -1;
1131 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
1132 return -1;
1133
1134 atkbd_activate(atkbd);
1135
1136 /*
1137 * Restore repeat rate and LEDs (that were reset by atkbd_activate)
1138 * to pre-resume state
1139 */
1140 if (!atkbd->softrepeat)
1141 atkbd_set_repeat_rate(atkbd);
1142 atkbd_set_leds(atkbd);
1143 }
1144
1145 atkbd_enable(atkbd);
1146
1147 return 0;
1148 }
1149
1150 static struct serio_device_id atkbd_serio_ids[] = {
1151 {
1152 .type = SERIO_8042,
1153 .proto = SERIO_ANY,
1154 .id = SERIO_ANY,
1155 .extra = SERIO_ANY,
1156 },
1157 {
1158 .type = SERIO_8042_XL,
1159 .proto = SERIO_ANY,
1160 .id = SERIO_ANY,
1161 .extra = SERIO_ANY,
1162 },
1163 {
1164 .type = SERIO_RS232,
1165 .proto = SERIO_PS2SER,
1166 .id = SERIO_ANY,
1167 .extra = SERIO_ANY,
1168 },
1169 { 0 }
1170 };
1171
1172 MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1173
1174 static struct serio_driver atkbd_drv = {
1175 .driver = {
1176 .name = "atkbd",
1177 },
1178 .description = DRIVER_DESC,
1179 .id_table = atkbd_serio_ids,
1180 .interrupt = atkbd_interrupt,
1181 .connect = atkbd_connect,
1182 .reconnect = atkbd_reconnect,
1183 .disconnect = atkbd_disconnect,
1184 .cleanup = atkbd_cleanup,
1185 };
1186
1187 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1188 ssize_t (*handler)(struct atkbd *, char *))
1189 {
1190 struct serio *serio = to_serio_port(dev);
1191 int retval;
1192
1193 retval = serio_pin_driver(serio);
1194 if (retval)
1195 return retval;
1196
1197 if (serio->drv != &atkbd_drv) {
1198 retval = -ENODEV;
1199 goto out;
1200 }
1201
1202 retval = handler((struct atkbd *)serio_get_drvdata(serio), buf);
1203
1204 out:
1205 serio_unpin_driver(serio);
1206 return retval;
1207 }
1208
1209 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1210 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1211 {
1212 struct serio *serio = to_serio_port(dev);
1213 struct atkbd *atkbd;
1214 int retval;
1215
1216 retval = serio_pin_driver(serio);
1217 if (retval)
1218 return retval;
1219
1220 if (serio->drv != &atkbd_drv) {
1221 retval = -ENODEV;
1222 goto out;
1223 }
1224
1225 atkbd = serio_get_drvdata(serio);
1226 atkbd_disable(atkbd);
1227 retval = handler(atkbd, buf, count);
1228 atkbd_enable(atkbd);
1229
1230 out:
1231 serio_unpin_driver(serio);
1232 return retval;
1233 }
1234
1235 static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1236 {
1237 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1238 }
1239
1240 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1241 {
1242 struct input_dev *old_dev, *new_dev;
1243 unsigned long value;
1244 int err;
1245 unsigned char old_extra, old_set;
1246
1247 if (!atkbd->write)
1248 return -EIO;
1249
1250 if (strict_strtoul(buf, 10, &value) || value > 1)
1251 return -EINVAL;
1252
1253 if (atkbd->extra != value) {
1254 /*
1255 * Since device's properties will change we need to
1256 * unregister old device. But allocate and register
1257 * new one first to make sure we have it.
1258 */
1259 old_dev = atkbd->dev;
1260 old_extra = atkbd->extra;
1261 old_set = atkbd->set;
1262
1263 new_dev = input_allocate_device();
1264 if (!new_dev)
1265 return -ENOMEM;
1266
1267 atkbd->dev = new_dev;
1268 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
1269 atkbd_activate(atkbd);
1270 atkbd_set_keycode_table(atkbd);
1271 atkbd_set_device_attrs(atkbd);
1272
1273 err = input_register_device(atkbd->dev);
1274 if (err) {
1275 input_free_device(new_dev);
1276
1277 atkbd->dev = old_dev;
1278 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1279 atkbd_set_keycode_table(atkbd);
1280 atkbd_set_device_attrs(atkbd);
1281
1282 return err;
1283 }
1284 input_unregister_device(old_dev);
1285
1286 }
1287 return count;
1288 }
1289
1290 static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1291 {
1292 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1293 }
1294
1295 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1296 {
1297 struct input_dev *old_dev, *new_dev;
1298 unsigned long value;
1299 int err;
1300 unsigned char old_scroll;
1301
1302 if (strict_strtoul(buf, 10, &value) || value > 1)
1303 return -EINVAL;
1304
1305 if (atkbd->scroll != value) {
1306 old_dev = atkbd->dev;
1307 old_scroll = atkbd->scroll;
1308
1309 new_dev = input_allocate_device();
1310 if (!new_dev)
1311 return -ENOMEM;
1312
1313 atkbd->dev = new_dev;
1314 atkbd->scroll = value;
1315 atkbd_set_keycode_table(atkbd);
1316 atkbd_set_device_attrs(atkbd);
1317
1318 err = input_register_device(atkbd->dev);
1319 if (err) {
1320 input_free_device(new_dev);
1321
1322 atkbd->scroll = old_scroll;
1323 atkbd->dev = old_dev;
1324 atkbd_set_keycode_table(atkbd);
1325 atkbd_set_device_attrs(atkbd);
1326
1327 return err;
1328 }
1329 input_unregister_device(old_dev);
1330 }
1331 return count;
1332 }
1333
1334 static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1335 {
1336 return sprintf(buf, "%d\n", atkbd->set);
1337 }
1338
1339 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1340 {
1341 struct input_dev *old_dev, *new_dev;
1342 unsigned long value;
1343 int err;
1344 unsigned char old_set, old_extra;
1345
1346 if (!atkbd->write)
1347 return -EIO;
1348
1349 if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3))
1350 return -EINVAL;
1351
1352 if (atkbd->set != value) {
1353 old_dev = atkbd->dev;
1354 old_extra = atkbd->extra;
1355 old_set = atkbd->set;
1356
1357 new_dev = input_allocate_device();
1358 if (!new_dev)
1359 return -ENOMEM;
1360
1361 atkbd->dev = new_dev;
1362 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
1363 atkbd_activate(atkbd);
1364 atkbd_set_keycode_table(atkbd);
1365 atkbd_set_device_attrs(atkbd);
1366
1367 err = input_register_device(atkbd->dev);
1368 if (err) {
1369 input_free_device(new_dev);
1370
1371 atkbd->dev = old_dev;
1372 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1373 atkbd_set_keycode_table(atkbd);
1374 atkbd_set_device_attrs(atkbd);
1375
1376 return err;
1377 }
1378 input_unregister_device(old_dev);
1379 }
1380 return count;
1381 }
1382
1383 static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1384 {
1385 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1386 }
1387
1388 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1389 {
1390 struct input_dev *old_dev, *new_dev;
1391 unsigned long value;
1392 int err;
1393 unsigned char old_softrepeat, old_softraw;
1394
1395 if (!atkbd->write)
1396 return -EIO;
1397
1398 if (strict_strtoul(buf, 10, &value) || value > 1)
1399 return -EINVAL;
1400
1401 if (atkbd->softrepeat != value) {
1402 old_dev = atkbd->dev;
1403 old_softrepeat = atkbd->softrepeat;
1404 old_softraw = atkbd->softraw;
1405
1406 new_dev = input_allocate_device();
1407 if (!new_dev)
1408 return -ENOMEM;
1409
1410 atkbd->dev = new_dev;
1411 atkbd->softrepeat = value;
1412 if (atkbd->softrepeat)
1413 atkbd->softraw = 1;
1414 atkbd_set_device_attrs(atkbd);
1415
1416 err = input_register_device(atkbd->dev);
1417 if (err) {
1418 input_free_device(new_dev);
1419
1420 atkbd->dev = old_dev;
1421 atkbd->softrepeat = old_softrepeat;
1422 atkbd->softraw = old_softraw;
1423 atkbd_set_device_attrs(atkbd);
1424
1425 return err;
1426 }
1427 input_unregister_device(old_dev);
1428 }
1429 return count;
1430 }
1431
1432
1433 static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1434 {
1435 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1436 }
1437
1438 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1439 {
1440 struct input_dev *old_dev, *new_dev;
1441 unsigned long value;
1442 int err;
1443 unsigned char old_softraw;
1444
1445 if (strict_strtoul(buf, 10, &value) || value > 1)
1446 return -EINVAL;
1447
1448 if (atkbd->softraw != value) {
1449 old_dev = atkbd->dev;
1450 old_softraw = atkbd->softraw;
1451
1452 new_dev = input_allocate_device();
1453 if (!new_dev)
1454 return -ENOMEM;
1455
1456 atkbd->dev = new_dev;
1457 atkbd->softraw = value;
1458 atkbd_set_device_attrs(atkbd);
1459
1460 err = input_register_device(atkbd->dev);
1461 if (err) {
1462 input_free_device(new_dev);
1463
1464 atkbd->dev = old_dev;
1465 atkbd->softraw = old_softraw;
1466 atkbd_set_device_attrs(atkbd);
1467
1468 return err;
1469 }
1470 input_unregister_device(old_dev);
1471 }
1472 return count;
1473 }
1474
1475 static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1476 {
1477 return sprintf(buf, "%lu\n", atkbd->err_count);
1478 }
1479
1480 static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
1481 {
1482 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1483 atkbd_platform_fixup_data = id->driver_data;
1484
1485 return 0;
1486 }
1487
1488 static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
1489 {
1490 .ident = "Dell Laptop",
1491 .matches = {
1492 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1493 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1494 },
1495 .callback = atkbd_setup_forced_release,
1496 .driver_data = atkbd_dell_laptop_forced_release_keys,
1497 },
1498 {
1499 .ident = "Dell Laptop",
1500 .matches = {
1501 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1502 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1503 },
1504 .callback = atkbd_setup_forced_release,
1505 .driver_data = atkbd_dell_laptop_forced_release_keys,
1506 },
1507 {
1508 .ident = "HP 2133",
1509 .matches = {
1510 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1511 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1512 },
1513 .callback = atkbd_setup_forced_release,
1514 .driver_data = atkbd_hp_forced_release_keys,
1515 },
1516 {
1517 .ident = "HP Pavilion ZV6100",
1518 .matches = {
1519 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1520 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1521 },
1522 .callback = atkbd_setup_forced_release,
1523 .driver_data = atkbd_hp_zv6100_forced_release_keys,
1524 },
1525 {
1526 .ident = "Inventec Symphony",
1527 .matches = {
1528 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1529 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1530 },
1531 .callback = atkbd_setup_forced_release,
1532 .driver_data = atkbd_inventec_forced_release_keys,
1533 },
1534 {
1535 .ident = "Samsung NC10",
1536 .matches = {
1537 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1538 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1539 },
1540 .callback = atkbd_setup_forced_release,
1541 .driver_data = atkbd_samsung_forced_release_keys,
1542 },
1543 {
1544 .ident = "Samsung NC20",
1545 .matches = {
1546 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1547 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
1548 },
1549 .callback = atkbd_setup_forced_release,
1550 .driver_data = atkbd_samsung_forced_release_keys,
1551 },
1552 {
1553 .ident = "Samsung SQ45S70S",
1554 .matches = {
1555 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1556 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
1557 },
1558 .callback = atkbd_setup_forced_release,
1559 .driver_data = atkbd_samsung_forced_release_keys,
1560 },
1561 {
1562 .ident = "Fujitsu Amilo PA 1510",
1563 .matches = {
1564 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1565 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1566 },
1567 .callback = atkbd_setup_forced_release,
1568 .driver_data = atkbd_amilo_pa1510_forced_release_keys,
1569 },
1570 {
1571 .ident = "Fujitsu Amilo Xi 3650",
1572 .matches = {
1573 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1574 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"),
1575 },
1576 .callback = atkbd_setup_forced_release,
1577 .driver_data = atkbd_amilo_xi3650_forced_release_keys,
1578 },
1579 { }
1580 };
1581
1582 static int __init atkbd_init(void)
1583 {
1584 dmi_check_system(atkbd_dmi_quirk_table);
1585
1586 return serio_register_driver(&atkbd_drv);
1587 }
1588
1589 static void __exit atkbd_exit(void)
1590 {
1591 serio_unregister_driver(&atkbd_drv);
1592 }
1593
1594 module_init(atkbd_init);
1595 module_exit(atkbd_exit);
Linux kernel - Deliverables
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