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Staging: otus: convert to netdev_ops
[linux-2.6/cjktty.git] / drivers / input / keyboard / atkbd.c
blobf999dc60c3b8d93eb2273fff3420ca8e9987f5a1
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 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 * atkbd_set_keycode_table() initializes keyboard's keycode table
899 * according to the selected scancode set
900 */
901
902 static void atkbd_set_keycode_table(struct atkbd *atkbd)
903 {
904 unsigned int scancode;
905 int i, j;
906
907 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
908 bitmap_zero(atkbd->force_release_mask, 512);
909
910 if (atkbd->translated) {
911 for (i = 0; i < 128; i++) {
912 scancode = atkbd_unxlate_table[i];
913 atkbd->keycode[i] = atkbd_set2_keycode[scancode];
914 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
915 if (atkbd->scroll)
916 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
917 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
918 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
919 }
920 } else if (atkbd->set == 3) {
921 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
922 } else {
923 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
924
925 if (atkbd->scroll)
926 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
927 scancode = atkbd_scroll_keys[i].set2;
928 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
929 }
930 }
931
932 /*
933 * HANGEUL and HANJA keys do not send release events so we need to
934 * generate such events ourselves
935 */
936 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
937 atkbd->keycode[scancode] = KEY_HANGEUL;
938 __set_bit(scancode, atkbd->force_release_mask);
939
940 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
941 atkbd->keycode[scancode] = KEY_HANJA;
942 __set_bit(scancode, atkbd->force_release_mask);
943
944 /*
945 * Perform additional fixups
946 */
947 if (atkbd_platform_fixup)
948 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
949 }
950
951 /*
952 * atkbd_set_device_attrs() sets up keyboard's input device structure
953 */
954
955 static void atkbd_set_device_attrs(struct atkbd *atkbd)
956 {
957 struct input_dev *input_dev = atkbd->dev;
958 int i;
959
960 if (atkbd->extra)
961 snprintf(atkbd->name, sizeof(atkbd->name),
962 "AT Set 2 Extra keyboard");
963 else
964 snprintf(atkbd->name, sizeof(atkbd->name),
965 "AT %s Set %d keyboard",
966 atkbd->translated ? "Translated" : "Raw", atkbd->set);
967
968 snprintf(atkbd->phys, sizeof(atkbd->phys),
969 "%s/input0", atkbd->ps2dev.serio->phys);
970
971 input_dev->name = atkbd->name;
972 input_dev->phys = atkbd->phys;
973 input_dev->id.bustype = BUS_I8042;
974 input_dev->id.vendor = 0x0001;
975 input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
976 input_dev->id.version = atkbd->id;
977 input_dev->event = atkbd_event;
978 input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
979
980 input_set_drvdata(input_dev, atkbd);
981
982 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
983 BIT_MASK(EV_MSC);
984
985 if (atkbd->write) {
986 input_dev->evbit[0] |= BIT_MASK(EV_LED);
987 input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
988 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
989 }
990
991 if (atkbd->extra)
992 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
993 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
994 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
995
996 if (!atkbd->softrepeat) {
997 input_dev->rep[REP_DELAY] = 250;
998 input_dev->rep[REP_PERIOD] = 33;
999 }
1000
1001 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
1002 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
1003
1004 if (atkbd->scroll) {
1005 input_dev->evbit[0] |= BIT_MASK(EV_REL);
1006 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
1007 BIT_MASK(REL_HWHEEL);
1008 __set_bit(BTN_MIDDLE, input_dev->keybit);
1009 }
1010
1011 input_dev->keycode = atkbd->keycode;
1012 input_dev->keycodesize = sizeof(unsigned short);
1013 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
1014
1015 for (i = 0; i < 512; i++)
1016 if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL)
1017 __set_bit(atkbd->keycode[i], input_dev->keybit);
1018 }
1019
1020 /*
1021 * atkbd_connect() is called when the serio module finds an interface
1022 * that isn't handled yet by an appropriate device driver. We check if
1023 * there is an AT keyboard out there and if yes, we register ourselves
1024 * to the input module.
1025 */
1026
1027 static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
1028 {
1029 struct atkbd *atkbd;
1030 struct input_dev *dev;
1031 int err = -ENOMEM;
1032
1033 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
1034 dev = input_allocate_device();
1035 if (!atkbd || !dev)
1036 goto fail1;
1037
1038 atkbd->dev = dev;
1039 ps2_init(&atkbd->ps2dev, serio);
1040 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
1041 mutex_init(&atkbd->event_mutex);
1042
1043 switch (serio->id.type) {
1044
1045 case SERIO_8042_XL:
1046 atkbd->translated = 1;
1047 case SERIO_8042:
1048 if (serio->write)
1049 atkbd->write = 1;
1050 break;
1051 }
1052
1053 atkbd->softraw = atkbd_softraw;
1054 atkbd->softrepeat = atkbd_softrepeat;
1055 atkbd->scroll = atkbd_scroll;
1056
1057 if (atkbd->softrepeat)
1058 atkbd->softraw = 1;
1059
1060 serio_set_drvdata(serio, atkbd);
1061
1062 err = serio_open(serio, drv);
1063 if (err)
1064 goto fail2;
1065
1066 if (atkbd->write) {
1067
1068 if (atkbd_probe(atkbd)) {
1069 err = -ENODEV;
1070 goto fail3;
1071 }
1072
1073 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
1074 atkbd_activate(atkbd);
1075
1076 } else {
1077 atkbd->set = 2;
1078 atkbd->id = 0xab00;
1079 }
1080
1081 atkbd_set_keycode_table(atkbd);
1082 atkbd_set_device_attrs(atkbd);
1083
1084 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group);
1085 if (err)
1086 goto fail3;
1087
1088 atkbd_enable(atkbd);
1089
1090 err = input_register_device(atkbd->dev);
1091 if (err)
1092 goto fail4;
1093
1094 return 0;
1095
1096 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
1097 fail3: serio_close(serio);
1098 fail2: serio_set_drvdata(serio, NULL);
1099 fail1: input_free_device(dev);
1100 kfree(atkbd);
1101 return err;
1102 }
1103
1104 /*
1105 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1106 * most likely called on resume.
1107 */
1108
1109 static int atkbd_reconnect(struct serio *serio)
1110 {
1111 struct atkbd *atkbd = serio_get_drvdata(serio);
1112 struct serio_driver *drv = serio->drv;
1113
1114 if (!atkbd || !drv) {
1115 printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
1116 return -1;
1117 }
1118
1119 atkbd_disable(atkbd);
1120
1121 if (atkbd->write) {
1122 if (atkbd_probe(atkbd))
1123 return -1;
1124 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
1125 return -1;
1126
1127 atkbd_activate(atkbd);
1128
1129 /*
1130 * Restore repeat rate and LEDs (that were reset by atkbd_activate)
1131 * to pre-resume state
1132 */
1133 if (!atkbd->softrepeat)
1134 atkbd_set_repeat_rate(atkbd);
1135 atkbd_set_leds(atkbd);
1136 }
1137
1138 atkbd_enable(atkbd);
1139
1140 return 0;
1141 }
1142
1143 static struct serio_device_id atkbd_serio_ids[] = {
1144 {
1145 .type = SERIO_8042,
1146 .proto = SERIO_ANY,
1147 .id = SERIO_ANY,
1148 .extra = SERIO_ANY,
1149 },
1150 {
1151 .type = SERIO_8042_XL,
1152 .proto = SERIO_ANY,
1153 .id = SERIO_ANY,
1154 .extra = SERIO_ANY,
1155 },
1156 {
1157 .type = SERIO_RS232,
1158 .proto = SERIO_PS2SER,
1159 .id = SERIO_ANY,
1160 .extra = SERIO_ANY,
1161 },
1162 { 0 }
1163 };
1164
1165 MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1166
1167 static struct serio_driver atkbd_drv = {
1168 .driver = {
1169 .name = "atkbd",
1170 },
1171 .description = DRIVER_DESC,
1172 .id_table = atkbd_serio_ids,
1173 .interrupt = atkbd_interrupt,
1174 .connect = atkbd_connect,
1175 .reconnect = atkbd_reconnect,
1176 .disconnect = atkbd_disconnect,
1177 .cleanup = atkbd_cleanup,
1178 };
1179
1180 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1181 ssize_t (*handler)(struct atkbd *, char *))
1182 {
1183 struct serio *serio = to_serio_port(dev);
1184 int retval;
1185
1186 retval = serio_pin_driver(serio);
1187 if (retval)
1188 return retval;
1189
1190 if (serio->drv != &atkbd_drv) {
1191 retval = -ENODEV;
1192 goto out;
1193 }
1194
1195 retval = handler((struct atkbd *)serio_get_drvdata(serio), buf);
1196
1197 out:
1198 serio_unpin_driver(serio);
1199 return retval;
1200 }
1201
1202 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1203 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1204 {
1205 struct serio *serio = to_serio_port(dev);
1206 struct atkbd *atkbd;
1207 int retval;
1208
1209 retval = serio_pin_driver(serio);
1210 if (retval)
1211 return retval;
1212
1213 if (serio->drv != &atkbd_drv) {
1214 retval = -ENODEV;
1215 goto out;
1216 }
1217
1218 atkbd = serio_get_drvdata(serio);
1219 atkbd_disable(atkbd);
1220 retval = handler(atkbd, buf, count);
1221 atkbd_enable(atkbd);
1222
1223 out:
1224 serio_unpin_driver(serio);
1225 return retval;
1226 }
1227
1228 static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1229 {
1230 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1231 }
1232
1233 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1234 {
1235 struct input_dev *old_dev, *new_dev;
1236 unsigned long value;
1237 int err;
1238 unsigned char old_extra, old_set;
1239
1240 if (!atkbd->write)
1241 return -EIO;
1242
1243 if (strict_strtoul(buf, 10, &value) || value > 1)
1244 return -EINVAL;
1245
1246 if (atkbd->extra != value) {
1247 /*
1248 * Since device's properties will change we need to
1249 * unregister old device. But allocate and register
1250 * new one first to make sure we have it.
1251 */
1252 old_dev = atkbd->dev;
1253 old_extra = atkbd->extra;
1254 old_set = atkbd->set;
1255
1256 new_dev = input_allocate_device();
1257 if (!new_dev)
1258 return -ENOMEM;
1259
1260 atkbd->dev = new_dev;
1261 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
1262 atkbd_activate(atkbd);
1263 atkbd_set_keycode_table(atkbd);
1264 atkbd_set_device_attrs(atkbd);
1265
1266 err = input_register_device(atkbd->dev);
1267 if (err) {
1268 input_free_device(new_dev);
1269
1270 atkbd->dev = old_dev;
1271 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1272 atkbd_set_keycode_table(atkbd);
1273 atkbd_set_device_attrs(atkbd);
1274
1275 return err;
1276 }
1277 input_unregister_device(old_dev);
1278
1279 }
1280 return count;
1281 }
1282
1283 static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1284 {
1285 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1286 }
1287
1288 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1289 {
1290 struct input_dev *old_dev, *new_dev;
1291 unsigned long value;
1292 int err;
1293 unsigned char old_scroll;
1294
1295 if (strict_strtoul(buf, 10, &value) || value > 1)
1296 return -EINVAL;
1297
1298 if (atkbd->scroll != value) {
1299 old_dev = atkbd->dev;
1300 old_scroll = atkbd->scroll;
1301
1302 new_dev = input_allocate_device();
1303 if (!new_dev)
1304 return -ENOMEM;
1305
1306 atkbd->dev = new_dev;
1307 atkbd->scroll = value;
1308 atkbd_set_keycode_table(atkbd);
1309 atkbd_set_device_attrs(atkbd);
1310
1311 err = input_register_device(atkbd->dev);
1312 if (err) {
1313 input_free_device(new_dev);
1314
1315 atkbd->scroll = old_scroll;
1316 atkbd->dev = old_dev;
1317 atkbd_set_keycode_table(atkbd);
1318 atkbd_set_device_attrs(atkbd);
1319
1320 return err;
1321 }
1322 input_unregister_device(old_dev);
1323 }
1324 return count;
1325 }
1326
1327 static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1328 {
1329 return sprintf(buf, "%d\n", atkbd->set);
1330 }
1331
1332 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1333 {
1334 struct input_dev *old_dev, *new_dev;
1335 unsigned long value;
1336 int err;
1337 unsigned char old_set, old_extra;
1338
1339 if (!atkbd->write)
1340 return -EIO;
1341
1342 if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3))
1343 return -EINVAL;
1344
1345 if (atkbd->set != value) {
1346 old_dev = atkbd->dev;
1347 old_extra = atkbd->extra;
1348 old_set = atkbd->set;
1349
1350 new_dev = input_allocate_device();
1351 if (!new_dev)
1352 return -ENOMEM;
1353
1354 atkbd->dev = new_dev;
1355 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
1356 atkbd_activate(atkbd);
1357 atkbd_set_keycode_table(atkbd);
1358 atkbd_set_device_attrs(atkbd);
1359
1360 err = input_register_device(atkbd->dev);
1361 if (err) {
1362 input_free_device(new_dev);
1363
1364 atkbd->dev = old_dev;
1365 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1366 atkbd_set_keycode_table(atkbd);
1367 atkbd_set_device_attrs(atkbd);
1368
1369 return err;
1370 }
1371 input_unregister_device(old_dev);
1372 }
1373 return count;
1374 }
1375
1376 static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1377 {
1378 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1379 }
1380
1381 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1382 {
1383 struct input_dev *old_dev, *new_dev;
1384 unsigned long value;
1385 int err;
1386 unsigned char old_softrepeat, old_softraw;
1387
1388 if (!atkbd->write)
1389 return -EIO;
1390
1391 if (strict_strtoul(buf, 10, &value) || value > 1)
1392 return -EINVAL;
1393
1394 if (atkbd->softrepeat != value) {
1395 old_dev = atkbd->dev;
1396 old_softrepeat = atkbd->softrepeat;
1397 old_softraw = atkbd->softraw;
1398
1399 new_dev = input_allocate_device();
1400 if (!new_dev)
1401 return -ENOMEM;
1402
1403 atkbd->dev = new_dev;
1404 atkbd->softrepeat = value;
1405 if (atkbd->softrepeat)
1406 atkbd->softraw = 1;
1407 atkbd_set_device_attrs(atkbd);
1408
1409 err = input_register_device(atkbd->dev);
1410 if (err) {
1411 input_free_device(new_dev);
1412
1413 atkbd->dev = old_dev;
1414 atkbd->softrepeat = old_softrepeat;
1415 atkbd->softraw = old_softraw;
1416 atkbd_set_device_attrs(atkbd);
1417
1418 return err;
1419 }
1420 input_unregister_device(old_dev);
1421 }
1422 return count;
1423 }
1424
1425
1426 static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1427 {
1428 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1429 }
1430
1431 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1432 {
1433 struct input_dev *old_dev, *new_dev;
1434 unsigned long value;
1435 int err;
1436 unsigned char old_softraw;
1437
1438 if (strict_strtoul(buf, 10, &value) || value > 1)
1439 return -EINVAL;
1440
1441 if (atkbd->softraw != value) {
1442 old_dev = atkbd->dev;
1443 old_softraw = atkbd->softraw;
1444
1445 new_dev = input_allocate_device();
1446 if (!new_dev)
1447 return -ENOMEM;
1448
1449 atkbd->dev = new_dev;
1450 atkbd->softraw = value;
1451 atkbd_set_device_attrs(atkbd);
1452
1453 err = input_register_device(atkbd->dev);
1454 if (err) {
1455 input_free_device(new_dev);
1456
1457 atkbd->dev = old_dev;
1458 atkbd->softraw = old_softraw;
1459 atkbd_set_device_attrs(atkbd);
1460
1461 return err;
1462 }
1463 input_unregister_device(old_dev);
1464 }
1465 return count;
1466 }
1467
1468 static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1469 {
1470 return sprintf(buf, "%lu\n", atkbd->err_count);
1471 }
1472
1473 static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
1474 {
1475 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1476 atkbd_platform_fixup_data = id->driver_data;
1477
1478 return 0;
1479 }
1480
1481 static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
1482 {
1483 .ident = "Dell Laptop",
1484 .matches = {
1485 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1486 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1487 },
1488 .callback = atkbd_setup_forced_release,
1489 .driver_data = atkbd_dell_laptop_forced_release_keys,
1490 },
1491 {
1492 .ident = "Dell Laptop",
1493 .matches = {
1494 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1495 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1496 },
1497 .callback = atkbd_setup_forced_release,
1498 .driver_data = atkbd_dell_laptop_forced_release_keys,
1499 },
1500 {
1501 .ident = "HP 2133",
1502 .matches = {
1503 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1504 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1505 },
1506 .callback = atkbd_setup_forced_release,
1507 .driver_data = atkbd_hp_forced_release_keys,
1508 },
1509 {
1510 .ident = "HP Pavilion ZV6100",
1511 .matches = {
1512 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1513 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1514 },
1515 .callback = atkbd_setup_forced_release,
1516 .driver_data = atkbd_hp_zv6100_forced_release_keys,
1517 },
1518 {
1519 .ident = "Inventec Symphony",
1520 .matches = {
1521 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1522 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1523 },
1524 .callback = atkbd_setup_forced_release,
1525 .driver_data = atkbd_inventec_forced_release_keys,
1526 },
1527 {
1528 .ident = "Samsung NC10",
1529 .matches = {
1530 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1531 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1532 },
1533 .callback = atkbd_setup_forced_release,
1534 .driver_data = atkbd_samsung_forced_release_keys,
1535 },
1536 {
1537 .ident = "Fujitsu Amilo PA 1510",
1538 .matches = {
1539 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1540 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1541 },
1542 .callback = atkbd_setup_forced_release,
1543 .driver_data = atkbd_amilo_pa1510_forced_release_keys,
1544 },
1545 { }
1546 };
1547
1548 static int __init atkbd_init(void)
1549 {
1550 dmi_check_system(atkbd_dmi_quirk_table);
1551
1552 return serio_register_driver(&atkbd_drv);
1553 }
1554
1555 static void __exit atkbd_exit(void)
1556 {
1557 serio_unregister_driver(&atkbd_drv);
1558 }
1559
1560 module_init(atkbd_init);
1561 module_exit(atkbd_exit);
CJK support for tty framebuffer vt