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[mirror_ubuntu-bionic-kernel.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 Pi 3525 key release for Fn+Volume keys not working
899 */
900 static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = {
901 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U
902 };
903
904 /*
905 * Amilo Xi 3650 key release for light touch bar not working
906 */
907 static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
908 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U
909 };
910
911 /*
912 * Soltech TA12 system with broken key release on volume keys and mute key
913 */
914 static unsigned int atkdb_soltech_ta12_forced_release_keys[] = {
915 0xa0, 0xae, 0xb0, -1U
916 };
917
918 /*
919 * atkbd_set_keycode_table() initializes keyboard's keycode table
920 * according to the selected scancode set
921 */
922
923 static void atkbd_set_keycode_table(struct atkbd *atkbd)
924 {
925 unsigned int scancode;
926 int i, j;
927
928 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
929 bitmap_zero(atkbd->force_release_mask, 512);
930
931 if (atkbd->translated) {
932 for (i = 0; i < 128; i++) {
933 scancode = atkbd_unxlate_table[i];
934 atkbd->keycode[i] = atkbd_set2_keycode[scancode];
935 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
936 if (atkbd->scroll)
937 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
938 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
939 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
940 }
941 } else if (atkbd->set == 3) {
942 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
943 } else {
944 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
945
946 if (atkbd->scroll)
947 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
948 scancode = atkbd_scroll_keys[i].set2;
949 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
950 }
951 }
952
953 /*
954 * HANGEUL and HANJA keys do not send release events so we need to
955 * generate such events ourselves
956 */
957 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
958 atkbd->keycode[scancode] = KEY_HANGEUL;
959 __set_bit(scancode, atkbd->force_release_mask);
960
961 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
962 atkbd->keycode[scancode] = KEY_HANJA;
963 __set_bit(scancode, atkbd->force_release_mask);
964
965 /*
966 * Perform additional fixups
967 */
968 if (atkbd_platform_fixup)
969 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
970 }
971
972 /*
973 * atkbd_set_device_attrs() sets up keyboard's input device structure
974 */
975
976 static void atkbd_set_device_attrs(struct atkbd *atkbd)
977 {
978 struct input_dev *input_dev = atkbd->dev;
979 int i;
980
981 if (atkbd->extra)
982 snprintf(atkbd->name, sizeof(atkbd->name),
983 "AT Set 2 Extra keyboard");
984 else
985 snprintf(atkbd->name, sizeof(atkbd->name),
986 "AT %s Set %d keyboard",
987 atkbd->translated ? "Translated" : "Raw", atkbd->set);
988
989 snprintf(atkbd->phys, sizeof(atkbd->phys),
990 "%s/input0", atkbd->ps2dev.serio->phys);
991
992 input_dev->name = atkbd->name;
993 input_dev->phys = atkbd->phys;
994 input_dev->id.bustype = BUS_I8042;
995 input_dev->id.vendor = 0x0001;
996 input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
997 input_dev->id.version = atkbd->id;
998 input_dev->event = atkbd_event;
999 input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
1000
1001 input_set_drvdata(input_dev, atkbd);
1002
1003 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
1004 BIT_MASK(EV_MSC);
1005
1006 if (atkbd->write) {
1007 input_dev->evbit[0] |= BIT_MASK(EV_LED);
1008 input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
1009 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
1010 }
1011
1012 if (atkbd->extra)
1013 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
1014 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
1015 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
1016
1017 if (!atkbd->softrepeat) {
1018 input_dev->rep[REP_DELAY] = 250;
1019 input_dev->rep[REP_PERIOD] = 33;
1020 }
1021
1022 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
1023 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
1024
1025 if (atkbd->scroll) {
1026 input_dev->evbit[0] |= BIT_MASK(EV_REL);
1027 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
1028 BIT_MASK(REL_HWHEEL);
1029 __set_bit(BTN_MIDDLE, input_dev->keybit);
1030 }
1031
1032 input_dev->keycode = atkbd->keycode;
1033 input_dev->keycodesize = sizeof(unsigned short);
1034 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
1035
1036 for (i = 0; i < 512; i++)
1037 if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL)
1038 __set_bit(atkbd->keycode[i], input_dev->keybit);
1039 }
1040
1041 /*
1042 * atkbd_connect() is called when the serio module finds an interface
1043 * that isn't handled yet by an appropriate device driver. We check if
1044 * there is an AT keyboard out there and if yes, we register ourselves
1045 * to the input module.
1046 */
1047
1048 static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
1049 {
1050 struct atkbd *atkbd;
1051 struct input_dev *dev;
1052 int err = -ENOMEM;
1053
1054 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
1055 dev = input_allocate_device();
1056 if (!atkbd || !dev)
1057 goto fail1;
1058
1059 atkbd->dev = dev;
1060 ps2_init(&atkbd->ps2dev, serio);
1061 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
1062 mutex_init(&atkbd->event_mutex);
1063
1064 switch (serio->id.type) {
1065
1066 case SERIO_8042_XL:
1067 atkbd->translated = 1;
1068 case SERIO_8042:
1069 if (serio->write)
1070 atkbd->write = 1;
1071 break;
1072 }
1073
1074 atkbd->softraw = atkbd_softraw;
1075 atkbd->softrepeat = atkbd_softrepeat;
1076 atkbd->scroll = atkbd_scroll;
1077
1078 if (atkbd->softrepeat)
1079 atkbd->softraw = 1;
1080
1081 serio_set_drvdata(serio, atkbd);
1082
1083 err = serio_open(serio, drv);
1084 if (err)
1085 goto fail2;
1086
1087 if (atkbd->write) {
1088
1089 if (atkbd_probe(atkbd)) {
1090 err = -ENODEV;
1091 goto fail3;
1092 }
1093
1094 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
1095 atkbd_activate(atkbd);
1096
1097 } else {
1098 atkbd->set = 2;
1099 atkbd->id = 0xab00;
1100 }
1101
1102 atkbd_set_keycode_table(atkbd);
1103 atkbd_set_device_attrs(atkbd);
1104
1105 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group);
1106 if (err)
1107 goto fail3;
1108
1109 atkbd_enable(atkbd);
1110
1111 err = input_register_device(atkbd->dev);
1112 if (err)
1113 goto fail4;
1114
1115 return 0;
1116
1117 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
1118 fail3: serio_close(serio);
1119 fail2: serio_set_drvdata(serio, NULL);
1120 fail1: input_free_device(dev);
1121 kfree(atkbd);
1122 return err;
1123 }
1124
1125 /*
1126 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1127 * most likely called on resume.
1128 */
1129
1130 static int atkbd_reconnect(struct serio *serio)
1131 {
1132 struct atkbd *atkbd = serio_get_drvdata(serio);
1133 struct serio_driver *drv = serio->drv;
1134
1135 if (!atkbd || !drv) {
1136 printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
1137 return -1;
1138 }
1139
1140 atkbd_disable(atkbd);
1141
1142 if (atkbd->write) {
1143 if (atkbd_probe(atkbd))
1144 return -1;
1145 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
1146 return -1;
1147
1148 atkbd_activate(atkbd);
1149
1150 /*
1151 * Restore repeat rate and LEDs (that were reset by atkbd_activate)
1152 * to pre-resume state
1153 */
1154 if (!atkbd->softrepeat)
1155 atkbd_set_repeat_rate(atkbd);
1156 atkbd_set_leds(atkbd);
1157 }
1158
1159 atkbd_enable(atkbd);
1160
1161 return 0;
1162 }
1163
1164 static struct serio_device_id atkbd_serio_ids[] = {
1165 {
1166 .type = SERIO_8042,
1167 .proto = SERIO_ANY,
1168 .id = SERIO_ANY,
1169 .extra = SERIO_ANY,
1170 },
1171 {
1172 .type = SERIO_8042_XL,
1173 .proto = SERIO_ANY,
1174 .id = SERIO_ANY,
1175 .extra = SERIO_ANY,
1176 },
1177 {
1178 .type = SERIO_RS232,
1179 .proto = SERIO_PS2SER,
1180 .id = SERIO_ANY,
1181 .extra = SERIO_ANY,
1182 },
1183 { 0 }
1184 };
1185
1186 MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1187
1188 static struct serio_driver atkbd_drv = {
1189 .driver = {
1190 .name = "atkbd",
1191 },
1192 .description = DRIVER_DESC,
1193 .id_table = atkbd_serio_ids,
1194 .interrupt = atkbd_interrupt,
1195 .connect = atkbd_connect,
1196 .reconnect = atkbd_reconnect,
1197 .disconnect = atkbd_disconnect,
1198 .cleanup = atkbd_cleanup,
1199 };
1200
1201 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1202 ssize_t (*handler)(struct atkbd *, char *))
1203 {
1204 struct serio *serio = to_serio_port(dev);
1205 int retval;
1206
1207 retval = serio_pin_driver(serio);
1208 if (retval)
1209 return retval;
1210
1211 if (serio->drv != &atkbd_drv) {
1212 retval = -ENODEV;
1213 goto out;
1214 }
1215
1216 retval = handler((struct atkbd *)serio_get_drvdata(serio), buf);
1217
1218 out:
1219 serio_unpin_driver(serio);
1220 return retval;
1221 }
1222
1223 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1224 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1225 {
1226 struct serio *serio = to_serio_port(dev);
1227 struct atkbd *atkbd;
1228 int retval;
1229
1230 retval = serio_pin_driver(serio);
1231 if (retval)
1232 return retval;
1233
1234 if (serio->drv != &atkbd_drv) {
1235 retval = -ENODEV;
1236 goto out;
1237 }
1238
1239 atkbd = serio_get_drvdata(serio);
1240 atkbd_disable(atkbd);
1241 retval = handler(atkbd, buf, count);
1242 atkbd_enable(atkbd);
1243
1244 out:
1245 serio_unpin_driver(serio);
1246 return retval;
1247 }
1248
1249 static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1250 {
1251 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1252 }
1253
1254 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1255 {
1256 struct input_dev *old_dev, *new_dev;
1257 unsigned long value;
1258 int err;
1259 unsigned char old_extra, old_set;
1260
1261 if (!atkbd->write)
1262 return -EIO;
1263
1264 if (strict_strtoul(buf, 10, &value) || value > 1)
1265 return -EINVAL;
1266
1267 if (atkbd->extra != value) {
1268 /*
1269 * Since device's properties will change we need to
1270 * unregister old device. But allocate and register
1271 * new one first to make sure we have it.
1272 */
1273 old_dev = atkbd->dev;
1274 old_extra = atkbd->extra;
1275 old_set = atkbd->set;
1276
1277 new_dev = input_allocate_device();
1278 if (!new_dev)
1279 return -ENOMEM;
1280
1281 atkbd->dev = new_dev;
1282 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
1283 atkbd_activate(atkbd);
1284 atkbd_set_keycode_table(atkbd);
1285 atkbd_set_device_attrs(atkbd);
1286
1287 err = input_register_device(atkbd->dev);
1288 if (err) {
1289 input_free_device(new_dev);
1290
1291 atkbd->dev = old_dev;
1292 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1293 atkbd_set_keycode_table(atkbd);
1294 atkbd_set_device_attrs(atkbd);
1295
1296 return err;
1297 }
1298 input_unregister_device(old_dev);
1299
1300 }
1301 return count;
1302 }
1303
1304 static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1305 {
1306 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1307 }
1308
1309 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1310 {
1311 struct input_dev *old_dev, *new_dev;
1312 unsigned long value;
1313 int err;
1314 unsigned char old_scroll;
1315
1316 if (strict_strtoul(buf, 10, &value) || value > 1)
1317 return -EINVAL;
1318
1319 if (atkbd->scroll != value) {
1320 old_dev = atkbd->dev;
1321 old_scroll = atkbd->scroll;
1322
1323 new_dev = input_allocate_device();
1324 if (!new_dev)
1325 return -ENOMEM;
1326
1327 atkbd->dev = new_dev;
1328 atkbd->scroll = value;
1329 atkbd_set_keycode_table(atkbd);
1330 atkbd_set_device_attrs(atkbd);
1331
1332 err = input_register_device(atkbd->dev);
1333 if (err) {
1334 input_free_device(new_dev);
1335
1336 atkbd->scroll = old_scroll;
1337 atkbd->dev = old_dev;
1338 atkbd_set_keycode_table(atkbd);
1339 atkbd_set_device_attrs(atkbd);
1340
1341 return err;
1342 }
1343 input_unregister_device(old_dev);
1344 }
1345 return count;
1346 }
1347
1348 static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1349 {
1350 return sprintf(buf, "%d\n", atkbd->set);
1351 }
1352
1353 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1354 {
1355 struct input_dev *old_dev, *new_dev;
1356 unsigned long value;
1357 int err;
1358 unsigned char old_set, old_extra;
1359
1360 if (!atkbd->write)
1361 return -EIO;
1362
1363 if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3))
1364 return -EINVAL;
1365
1366 if (atkbd->set != value) {
1367 old_dev = atkbd->dev;
1368 old_extra = atkbd->extra;
1369 old_set = atkbd->set;
1370
1371 new_dev = input_allocate_device();
1372 if (!new_dev)
1373 return -ENOMEM;
1374
1375 atkbd->dev = new_dev;
1376 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
1377 atkbd_activate(atkbd);
1378 atkbd_set_keycode_table(atkbd);
1379 atkbd_set_device_attrs(atkbd);
1380
1381 err = input_register_device(atkbd->dev);
1382 if (err) {
1383 input_free_device(new_dev);
1384
1385 atkbd->dev = old_dev;
1386 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1387 atkbd_set_keycode_table(atkbd);
1388 atkbd_set_device_attrs(atkbd);
1389
1390 return err;
1391 }
1392 input_unregister_device(old_dev);
1393 }
1394 return count;
1395 }
1396
1397 static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1398 {
1399 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1400 }
1401
1402 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1403 {
1404 struct input_dev *old_dev, *new_dev;
1405 unsigned long value;
1406 int err;
1407 unsigned char old_softrepeat, old_softraw;
1408
1409 if (!atkbd->write)
1410 return -EIO;
1411
1412 if (strict_strtoul(buf, 10, &value) || value > 1)
1413 return -EINVAL;
1414
1415 if (atkbd->softrepeat != value) {
1416 old_dev = atkbd->dev;
1417 old_softrepeat = atkbd->softrepeat;
1418 old_softraw = atkbd->softraw;
1419
1420 new_dev = input_allocate_device();
1421 if (!new_dev)
1422 return -ENOMEM;
1423
1424 atkbd->dev = new_dev;
1425 atkbd->softrepeat = value;
1426 if (atkbd->softrepeat)
1427 atkbd->softraw = 1;
1428 atkbd_set_device_attrs(atkbd);
1429
1430 err = input_register_device(atkbd->dev);
1431 if (err) {
1432 input_free_device(new_dev);
1433
1434 atkbd->dev = old_dev;
1435 atkbd->softrepeat = old_softrepeat;
1436 atkbd->softraw = old_softraw;
1437 atkbd_set_device_attrs(atkbd);
1438
1439 return err;
1440 }
1441 input_unregister_device(old_dev);
1442 }
1443 return count;
1444 }
1445
1446
1447 static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1448 {
1449 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1450 }
1451
1452 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1453 {
1454 struct input_dev *old_dev, *new_dev;
1455 unsigned long value;
1456 int err;
1457 unsigned char old_softraw;
1458
1459 if (strict_strtoul(buf, 10, &value) || value > 1)
1460 return -EINVAL;
1461
1462 if (atkbd->softraw != value) {
1463 old_dev = atkbd->dev;
1464 old_softraw = atkbd->softraw;
1465
1466 new_dev = input_allocate_device();
1467 if (!new_dev)
1468 return -ENOMEM;
1469
1470 atkbd->dev = new_dev;
1471 atkbd->softraw = value;
1472 atkbd_set_device_attrs(atkbd);
1473
1474 err = input_register_device(atkbd->dev);
1475 if (err) {
1476 input_free_device(new_dev);
1477
1478 atkbd->dev = old_dev;
1479 atkbd->softraw = old_softraw;
1480 atkbd_set_device_attrs(atkbd);
1481
1482 return err;
1483 }
1484 input_unregister_device(old_dev);
1485 }
1486 return count;
1487 }
1488
1489 static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1490 {
1491 return sprintf(buf, "%lu\n", atkbd->err_count);
1492 }
1493
1494 static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
1495 {
1496 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1497 atkbd_platform_fixup_data = id->driver_data;
1498
1499 return 0;
1500 }
1501
1502 static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
1503 {
1504 .ident = "Dell Laptop",
1505 .matches = {
1506 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1507 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1508 },
1509 .callback = atkbd_setup_forced_release,
1510 .driver_data = atkbd_dell_laptop_forced_release_keys,
1511 },
1512 {
1513 .ident = "Dell Laptop",
1514 .matches = {
1515 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1516 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1517 },
1518 .callback = atkbd_setup_forced_release,
1519 .driver_data = atkbd_dell_laptop_forced_release_keys,
1520 },
1521 {
1522 .ident = "HP 2133",
1523 .matches = {
1524 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1525 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1526 },
1527 .callback = atkbd_setup_forced_release,
1528 .driver_data = atkbd_hp_forced_release_keys,
1529 },
1530 {
1531 .ident = "HP Pavilion ZV6100",
1532 .matches = {
1533 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1534 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1535 },
1536 .callback = atkbd_setup_forced_release,
1537 .driver_data = atkbd_hp_zv6100_forced_release_keys,
1538 },
1539 {
1540 .ident = "Inventec Symphony",
1541 .matches = {
1542 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1543 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1544 },
1545 .callback = atkbd_setup_forced_release,
1546 .driver_data = atkbd_inventec_forced_release_keys,
1547 },
1548 {
1549 .ident = "Samsung NC10",
1550 .matches = {
1551 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1552 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1553 },
1554 .callback = atkbd_setup_forced_release,
1555 .driver_data = atkbd_samsung_forced_release_keys,
1556 },
1557 {
1558 .ident = "Samsung NC20",
1559 .matches = {
1560 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1561 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
1562 },
1563 .callback = atkbd_setup_forced_release,
1564 .driver_data = atkbd_samsung_forced_release_keys,
1565 },
1566 {
1567 .ident = "Samsung SQ45S70S",
1568 .matches = {
1569 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1570 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
1571 },
1572 .callback = atkbd_setup_forced_release,
1573 .driver_data = atkbd_samsung_forced_release_keys,
1574 },
1575 {
1576 .ident = "Fujitsu Amilo PA 1510",
1577 .matches = {
1578 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1579 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1580 },
1581 .callback = atkbd_setup_forced_release,
1582 .driver_data = atkbd_amilo_pa1510_forced_release_keys,
1583 },
1584 {
1585 .ident = "Fujitsu Amilo Pi 3525",
1586 .matches = {
1587 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1588 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"),
1589 },
1590 .callback = atkbd_setup_forced_release,
1591 .driver_data = atkbd_amilo_pi3525_forced_release_keys,
1592 },
1593 {
1594 .ident = "Fujitsu Amilo Xi 3650",
1595 .matches = {
1596 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1597 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"),
1598 },
1599 .callback = atkbd_setup_forced_release,
1600 .driver_data = atkbd_amilo_xi3650_forced_release_keys,
1601 },
1602 {
1603 .ident = "Soltech Corporation TA12",
1604 .matches = {
1605 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"),
1606 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"),
1607 },
1608 .callback = atkbd_setup_forced_release,
1609 .driver_data = atkdb_soltech_ta12_forced_release_keys,
1610 },
1611 { }
1612 };
1613
1614 static int __init atkbd_init(void)
1615 {
1616 dmi_check_system(atkbd_dmi_quirk_table);
1617
1618 return serio_register_driver(&atkbd_drv);
1619 }
1620
1621 static void __exit atkbd_exit(void)
1622 {
1623 serio_unregister_driver(&atkbd_drv);
1624 }
1625
1626 module_init(atkbd_init);
1627 module_exit(atkbd_exit);
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