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, ¶m, 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 * Perform fixup for HP (Compaq) Presario R4000 R4100 R4200 that don't generate
884 * release for their volume buttons
885 */
886 static unsigned int atkbd_hp_r4000_forced_release_keys[] = {
887 0xae, 0xb0, -1U
888 };
889
890 /*
891 * Samsung NC10,NC20 with Fn+F? key release not working
892 */
893 static unsigned int atkbd_samsung_forced_release_keys[] = {
894 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
895 };
896
897 /*
898 * The volume up and volume down special keys on a Fujitsu Amilo PA 1510 laptop
899 * do not generate release events so we have to do it ourselves.
900 */
901 static unsigned int atkbd_amilo_pa1510_forced_release_keys[] = {
902 0xb0, 0xae, -1U
903 };
904
905 /*
906 * Amilo Pi 3525 key release for Fn+Volume keys not working
907 */
908 static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = {
909 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U
910 };
911
912 /*
913 * Amilo Xi 3650 key release for light touch bar not working
914 */
915 static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
916 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U
917 };
918
919 /*
920 * Soltech TA12 system with broken key release on volume keys and mute key
921 */
922 static unsigned int atkdb_soltech_ta12_forced_release_keys[] = {
923 0xa0, 0xae, 0xb0, -1U
924 };
925
926 /*
927 * atkbd_set_keycode_table() initializes keyboard's keycode table
928 * according to the selected scancode set
929 */
930
931 static void atkbd_set_keycode_table(struct atkbd *atkbd)
932 {
933 unsigned int scancode;
934 int i, j;
935
936 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
937 bitmap_zero(atkbd->force_release_mask, 512);
938
939 if (atkbd->translated) {
940 for (i = 0; i < 128; i++) {
941 scancode = atkbd_unxlate_table[i];
942 atkbd->keycode[i] = atkbd_set2_keycode[scancode];
943 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
944 if (atkbd->scroll)
945 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
946 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
947 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
948 }
949 } else if (atkbd->set == 3) {
950 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
951 } else {
952 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
953
954 if (atkbd->scroll)
955 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
956 scancode = atkbd_scroll_keys[i].set2;
957 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
958 }
959 }
960
961 /*
962 * HANGEUL and HANJA keys do not send release events so we need to
963 * generate such events ourselves
964 */
965 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
966 atkbd->keycode[scancode] = KEY_HANGEUL;
967 __set_bit(scancode, atkbd->force_release_mask);
968
969 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
970 atkbd->keycode[scancode] = KEY_HANJA;
971 __set_bit(scancode, atkbd->force_release_mask);
972
973 /*
974 * Perform additional fixups
975 */
976 if (atkbd_platform_fixup)
977 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
978 }
979
980 /*
981 * atkbd_set_device_attrs() sets up keyboard's input device structure
982 */
983
984 static void atkbd_set_device_attrs(struct atkbd *atkbd)
985 {
986 struct input_dev *input_dev = atkbd->dev;
987 int i;
988
989 if (atkbd->extra)
990 snprintf(atkbd->name, sizeof(atkbd->name),
991 "AT Set 2 Extra keyboard");
992 else
993 snprintf(atkbd->name, sizeof(atkbd->name),
994 "AT %s Set %d keyboard",
995 atkbd->translated ? "Translated" : "Raw", atkbd->set);
996
997 snprintf(atkbd->phys, sizeof(atkbd->phys),
998 "%s/input0", atkbd->ps2dev.serio->phys);
999
1000 input_dev->name = atkbd->name;
1001 input_dev->phys = atkbd->phys;
1002 input_dev->id.bustype = BUS_I8042;
1003 input_dev->id.vendor = 0x0001;
1004 input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
1005 input_dev->id.version = atkbd->id;
1006 input_dev->event = atkbd_event;
1007 input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
1008
1009 input_set_drvdata(input_dev, atkbd);
1010
1011 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
1012 BIT_MASK(EV_MSC);
1013
1014 if (atkbd->write) {
1015 input_dev->evbit[0] |= BIT_MASK(EV_LED);
1016 input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
1017 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
1018 }
1019
1020 if (atkbd->extra)
1021 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
1022 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
1023 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
1024
1025 if (!atkbd->softrepeat) {
1026 input_dev->rep[REP_DELAY] = 250;
1027 input_dev->rep[REP_PERIOD] = 33;
1028 }
1029
1030 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
1031 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
1032
1033 if (atkbd->scroll) {
1034 input_dev->evbit[0] |= BIT_MASK(EV_REL);
1035 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
1036 BIT_MASK(REL_HWHEEL);
1037 __set_bit(BTN_MIDDLE, input_dev->keybit);
1038 }
1039
1040 input_dev->keycode = atkbd->keycode;
1041 input_dev->keycodesize = sizeof(unsigned short);
1042 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
1043
1044 for (i = 0; i < 512; i++)
1045 if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL)
1046 __set_bit(atkbd->keycode[i], input_dev->keybit);
1047 }
1048
1049 /*
1050 * atkbd_connect() is called when the serio module finds an interface
1051 * that isn't handled yet by an appropriate device driver. We check if
1052 * there is an AT keyboard out there and if yes, we register ourselves
1053 * to the input module.
1054 */
1055
1056 static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
1057 {
1058 struct atkbd *atkbd;
1059 struct input_dev *dev;
1060 int err = -ENOMEM;
1061
1062 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
1063 dev = input_allocate_device();
1064 if (!atkbd || !dev)
1065 goto fail1;
1066
1067 atkbd->dev = dev;
1068 ps2_init(&atkbd->ps2dev, serio);
1069 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
1070 mutex_init(&atkbd->event_mutex);
1071
1072 switch (serio->id.type) {
1073
1074 case SERIO_8042_XL:
1075 atkbd->translated = 1;
1076 case SERIO_8042:
1077 if (serio->write)
1078 atkbd->write = 1;
1079 break;
1080 }
1081
1082 atkbd->softraw = atkbd_softraw;
1083 atkbd->softrepeat = atkbd_softrepeat;
1084 atkbd->scroll = atkbd_scroll;
1085
1086 if (atkbd->softrepeat)
1087 atkbd->softraw = 1;
1088
1089 serio_set_drvdata(serio, atkbd);
1090
1091 err = serio_open(serio, drv);
1092 if (err)
1093 goto fail2;
1094
1095 if (atkbd->write) {
1096
1097 if (atkbd_probe(atkbd)) {
1098 err = -ENODEV;
1099 goto fail3;
1100 }
1101
1102 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
1103 atkbd_activate(atkbd);
1104
1105 } else {
1106 atkbd->set = 2;
1107 atkbd->id = 0xab00;
1108 }
1109
1110 atkbd_set_keycode_table(atkbd);
1111 atkbd_set_device_attrs(atkbd);
1112
1113 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group);
1114 if (err)
1115 goto fail3;
1116
1117 atkbd_enable(atkbd);
1118
1119 err = input_register_device(atkbd->dev);
1120 if (err)
1121 goto fail4;
1122
1123 return 0;
1124
1125 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
1126 fail3: serio_close(serio);
1127 fail2: serio_set_drvdata(serio, NULL);
1128 fail1: input_free_device(dev);
1129 kfree(atkbd);
1130 return err;
1131 }
1132
1133 /*
1134 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1135 * most likely called on resume.
1136 */
1137
1138 static int atkbd_reconnect(struct serio *serio)
1139 {
1140 struct atkbd *atkbd = serio_get_drvdata(serio);
1141 struct serio_driver *drv = serio->drv;
1142
1143 if (!atkbd || !drv) {
1144 printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
1145 return -1;
1146 }
1147
1148 atkbd_disable(atkbd);
1149
1150 if (atkbd->write) {
1151 if (atkbd_probe(atkbd))
1152 return -1;
1153 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
1154 return -1;
1155
1156 atkbd_activate(atkbd);
1157
1158 /*
1159 * Restore repeat rate and LEDs (that were reset by atkbd_activate)
1160 * to pre-resume state
1161 */
1162 if (!atkbd->softrepeat)
1163 atkbd_set_repeat_rate(atkbd);
1164 atkbd_set_leds(atkbd);
1165 }
1166
1167 atkbd_enable(atkbd);
1168
1169 return 0;
1170 }
1171
1172 static struct serio_device_id atkbd_serio_ids[] = {
1173 {
1174 .type = SERIO_8042,
1175 .proto = SERIO_ANY,
1176 .id = SERIO_ANY,
1177 .extra = SERIO_ANY,
1178 },
1179 {
1180 .type = SERIO_8042_XL,
1181 .proto = SERIO_ANY,
1182 .id = SERIO_ANY,
1183 .extra = SERIO_ANY,
1184 },
1185 {
1186 .type = SERIO_RS232,
1187 .proto = SERIO_PS2SER,
1188 .id = SERIO_ANY,
1189 .extra = SERIO_ANY,
1190 },
1191 { 0 }
1192 };
1193
1194 MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1195
1196 static struct serio_driver atkbd_drv = {
1197 .driver = {
1198 .name = "atkbd",
1199 },
1200 .description = DRIVER_DESC,
1201 .id_table = atkbd_serio_ids,
1202 .interrupt = atkbd_interrupt,
1203 .connect = atkbd_connect,
1204 .reconnect = atkbd_reconnect,
1205 .disconnect = atkbd_disconnect,
1206 .cleanup = atkbd_cleanup,
1207 };
1208
1209 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1210 ssize_t (*handler)(struct atkbd *, char *))
1211 {
1212 struct serio *serio = to_serio_port(dev);
1213 int retval;
1214
1215 retval = serio_pin_driver(serio);
1216 if (retval)
1217 return retval;
1218
1219 if (serio->drv != &atkbd_drv) {
1220 retval = -ENODEV;
1221 goto out;
1222 }
1223
1224 retval = handler((struct atkbd *)serio_get_drvdata(serio), buf);
1225
1226 out:
1227 serio_unpin_driver(serio);
1228 return retval;
1229 }
1230
1231 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1232 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1233 {
1234 struct serio *serio = to_serio_port(dev);
1235 struct atkbd *atkbd;
1236 int retval;
1237
1238 retval = serio_pin_driver(serio);
1239 if (retval)
1240 return retval;
1241
1242 if (serio->drv != &atkbd_drv) {
1243 retval = -ENODEV;
1244 goto out;
1245 }
1246
1247 atkbd = serio_get_drvdata(serio);
1248 atkbd_disable(atkbd);
1249 retval = handler(atkbd, buf, count);
1250 atkbd_enable(atkbd);
1251
1252 out:
1253 serio_unpin_driver(serio);
1254 return retval;
1255 }
1256
1257 static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1258 {
1259 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1260 }
1261
1262 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1263 {
1264 struct input_dev *old_dev, *new_dev;
1265 unsigned long value;
1266 int err;
1267 unsigned char old_extra, old_set;
1268
1269 if (!atkbd->write)
1270 return -EIO;
1271
1272 if (strict_strtoul(buf, 10, &value) || value > 1)
1273 return -EINVAL;
1274
1275 if (atkbd->extra != value) {
1276 /*
1277 * Since device's properties will change we need to
1278 * unregister old device. But allocate and register
1279 * new one first to make sure we have it.
1280 */
1281 old_dev = atkbd->dev;
1282 old_extra = atkbd->extra;
1283 old_set = atkbd->set;
1284
1285 new_dev = input_allocate_device();
1286 if (!new_dev)
1287 return -ENOMEM;
1288
1289 atkbd->dev = new_dev;
1290 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
1291 atkbd_activate(atkbd);
1292 atkbd_set_keycode_table(atkbd);
1293 atkbd_set_device_attrs(atkbd);
1294
1295 err = input_register_device(atkbd->dev);
1296 if (err) {
1297 input_free_device(new_dev);
1298
1299 atkbd->dev = old_dev;
1300 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1301 atkbd_set_keycode_table(atkbd);
1302 atkbd_set_device_attrs(atkbd);
1303
1304 return err;
1305 }
1306 input_unregister_device(old_dev);
1307
1308 }
1309 return count;
1310 }
1311
1312 static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1313 {
1314 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1315 }
1316
1317 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1318 {
1319 struct input_dev *old_dev, *new_dev;
1320 unsigned long value;
1321 int err;
1322 unsigned char old_scroll;
1323
1324 if (strict_strtoul(buf, 10, &value) || value > 1)
1325 return -EINVAL;
1326
1327 if (atkbd->scroll != value) {
1328 old_dev = atkbd->dev;
1329 old_scroll = atkbd->scroll;
1330
1331 new_dev = input_allocate_device();
1332 if (!new_dev)
1333 return -ENOMEM;
1334
1335 atkbd->dev = new_dev;
1336 atkbd->scroll = value;
1337 atkbd_set_keycode_table(atkbd);
1338 atkbd_set_device_attrs(atkbd);
1339
1340 err = input_register_device(atkbd->dev);
1341 if (err) {
1342 input_free_device(new_dev);
1343
1344 atkbd->scroll = old_scroll;
1345 atkbd->dev = old_dev;
1346 atkbd_set_keycode_table(atkbd);
1347 atkbd_set_device_attrs(atkbd);
1348
1349 return err;
1350 }
1351 input_unregister_device(old_dev);
1352 }
1353 return count;
1354 }
1355
1356 static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1357 {
1358 return sprintf(buf, "%d\n", atkbd->set);
1359 }
1360
1361 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1362 {
1363 struct input_dev *old_dev, *new_dev;
1364 unsigned long value;
1365 int err;
1366 unsigned char old_set, old_extra;
1367
1368 if (!atkbd->write)
1369 return -EIO;
1370
1371 if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3))
1372 return -EINVAL;
1373
1374 if (atkbd->set != value) {
1375 old_dev = atkbd->dev;
1376 old_extra = atkbd->extra;
1377 old_set = atkbd->set;
1378
1379 new_dev = input_allocate_device();
1380 if (!new_dev)
1381 return -ENOMEM;
1382
1383 atkbd->dev = new_dev;
1384 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
1385 atkbd_activate(atkbd);
1386 atkbd_set_keycode_table(atkbd);
1387 atkbd_set_device_attrs(atkbd);
1388
1389 err = input_register_device(atkbd->dev);
1390 if (err) {
1391 input_free_device(new_dev);
1392
1393 atkbd->dev = old_dev;
1394 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1395 atkbd_set_keycode_table(atkbd);
1396 atkbd_set_device_attrs(atkbd);
1397
1398 return err;
1399 }
1400 input_unregister_device(old_dev);
1401 }
1402 return count;
1403 }
1404
1405 static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1406 {
1407 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1408 }
1409
1410 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1411 {
1412 struct input_dev *old_dev, *new_dev;
1413 unsigned long value;
1414 int err;
1415 unsigned char old_softrepeat, old_softraw;
1416
1417 if (!atkbd->write)
1418 return -EIO;
1419
1420 if (strict_strtoul(buf, 10, &value) || value > 1)
1421 return -EINVAL;
1422
1423 if (atkbd->softrepeat != value) {
1424 old_dev = atkbd->dev;
1425 old_softrepeat = atkbd->softrepeat;
1426 old_softraw = atkbd->softraw;
1427
1428 new_dev = input_allocate_device();
1429 if (!new_dev)
1430 return -ENOMEM;
1431
1432 atkbd->dev = new_dev;
1433 atkbd->softrepeat = value;
1434 if (atkbd->softrepeat)
1435 atkbd->softraw = 1;
1436 atkbd_set_device_attrs(atkbd);
1437
1438 err = input_register_device(atkbd->dev);
1439 if (err) {
1440 input_free_device(new_dev);
1441
1442 atkbd->dev = old_dev;
1443 atkbd->softrepeat = old_softrepeat;
1444 atkbd->softraw = old_softraw;
1445 atkbd_set_device_attrs(atkbd);
1446
1447 return err;
1448 }
1449 input_unregister_device(old_dev);
1450 }
1451 return count;
1452 }
1453
1454
1455 static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1456 {
1457 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1458 }
1459
1460 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1461 {
1462 struct input_dev *old_dev, *new_dev;
1463 unsigned long value;
1464 int err;
1465 unsigned char old_softraw;
1466
1467 if (strict_strtoul(buf, 10, &value) || value > 1)
1468 return -EINVAL;
1469
1470 if (atkbd->softraw != value) {
1471 old_dev = atkbd->dev;
1472 old_softraw = atkbd->softraw;
1473
1474 new_dev = input_allocate_device();
1475 if (!new_dev)
1476 return -ENOMEM;
1477
1478 atkbd->dev = new_dev;
1479 atkbd->softraw = value;
1480 atkbd_set_device_attrs(atkbd);
1481
1482 err = input_register_device(atkbd->dev);
1483 if (err) {
1484 input_free_device(new_dev);
1485
1486 atkbd->dev = old_dev;
1487 atkbd->softraw = old_softraw;
1488 atkbd_set_device_attrs(atkbd);
1489
1490 return err;
1491 }
1492 input_unregister_device(old_dev);
1493 }
1494 return count;
1495 }
1496
1497 static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1498 {
1499 return sprintf(buf, "%lu\n", atkbd->err_count);
1500 }
1501
1502 static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
1503 {
1504 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1505 atkbd_platform_fixup_data = id->driver_data;
1506
1507 return 0;
1508 }
1509
1510 static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
1511 {
1512 .ident = "Dell Laptop",
1513 .matches = {
1514 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1515 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1516 },
1517 .callback = atkbd_setup_forced_release,
1518 .driver_data = atkbd_dell_laptop_forced_release_keys,
1519 },
1520 {
1521 .ident = "Dell Laptop",
1522 .matches = {
1523 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1524 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1525 },
1526 .callback = atkbd_setup_forced_release,
1527 .driver_data = atkbd_dell_laptop_forced_release_keys,
1528 },
1529 {
1530 .ident = "HP 2133",
1531 .matches = {
1532 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1533 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1534 },
1535 .callback = atkbd_setup_forced_release,
1536 .driver_data = atkbd_hp_forced_release_keys,
1537 },
1538 {
1539 .ident = "HP Pavilion ZV6100",
1540 .matches = {
1541 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1542 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1543 },
1544 .callback = atkbd_setup_forced_release,
1545 .driver_data = atkbd_hp_zv6100_forced_release_keys,
1546 },
1547 {
1548 .ident = "HP Presario R4000",
1549 .matches = {
1550 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1551 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"),
1552 },
1553 .callback = atkbd_setup_forced_release,
1554 .driver_data = atkbd_hp_r4000_forced_release_keys,
1555 },
1556 {
1557 .ident = "HP Presario R4100",
1558 .matches = {
1559 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1560 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"),
1561 },
1562 .callback = atkbd_setup_forced_release,
1563 .driver_data = atkbd_hp_r4000_forced_release_keys,
1564 },
1565 {
1566 .ident = "HP Presario R4200",
1567 .matches = {
1568 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1569 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"),
1570 },
1571 .callback = atkbd_setup_forced_release,
1572 .driver_data = atkbd_hp_r4000_forced_release_keys,
1573 },
1574 {
1575 .ident = "Inventec Symphony",
1576 .matches = {
1577 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1578 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1579 },
1580 .callback = atkbd_setup_forced_release,
1581 .driver_data = atkbd_inventec_forced_release_keys,
1582 },
1583 {
1584 .ident = "Samsung NC10",
1585 .matches = {
1586 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1587 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1588 },
1589 .callback = atkbd_setup_forced_release,
1590 .driver_data = atkbd_samsung_forced_release_keys,
1591 },
1592 {
1593 .ident = "Samsung NC20",
1594 .matches = {
1595 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1596 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
1597 },
1598 .callback = atkbd_setup_forced_release,
1599 .driver_data = atkbd_samsung_forced_release_keys,
1600 },
1601 {
1602 .ident = "Samsung SQ45S70S",
1603 .matches = {
1604 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1605 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
1606 },
1607 .callback = atkbd_setup_forced_release,
1608 .driver_data = atkbd_samsung_forced_release_keys,
1609 },
1610 {
1611 .ident = "Samsung R59P/R60P/R61P",
1612 .matches = {
1613 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1614 DMI_MATCH(DMI_PRODUCT_NAME, "R59P/R60P/R61P"),
1615 },
1616 .callback = atkbd_setup_forced_release,
1617 .driver_data = atkbd_samsung_forced_release_keys,
1618 },
1619 {
1620 .ident = "Fujitsu Amilo PA 1510",
1621 .matches = {
1622 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1623 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1624 },
1625 .callback = atkbd_setup_forced_release,
1626 .driver_data = atkbd_amilo_pa1510_forced_release_keys,
1627 },
1628 {
1629 .ident = "Fujitsu Amilo Pi 3525",
1630 .matches = {
1631 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1632 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"),
1633 },
1634 .callback = atkbd_setup_forced_release,
1635 .driver_data = atkbd_amilo_pi3525_forced_release_keys,
1636 },
1637 {
1638 .ident = "Fujitsu Amilo Xi 3650",
1639 .matches = {
1640 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1641 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"),
1642 },
1643 .callback = atkbd_setup_forced_release,
1644 .driver_data = atkbd_amilo_xi3650_forced_release_keys,
1645 },
1646 {
1647 .ident = "Soltech Corporation TA12",
1648 .matches = {
1649 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"),
1650 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"),
1651 },
1652 .callback = atkbd_setup_forced_release,
1653 .driver_data = atkdb_soltech_ta12_forced_release_keys,
1654 },
1655 { }
1656 };
1657
1658 static int __init atkbd_init(void)
1659 {
1660 dmi_check_system(atkbd_dmi_quirk_table);
1661
1662 return serio_register_driver(&atkbd_drv);
1663 }
1664
1665 static void __exit atkbd_exit(void)
1666 {
1667 serio_unregister_driver(&atkbd_drv);
1668 }
1669
1670 module_init(atkbd_init);
1671 module_exit(atkbd_exit);
1672
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