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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
[linux/fpc-iii.git] / drivers / input / keyboard / atkbd.c
blob2626773ff29b956de97d5c62d383e36e13ee4868
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 bool atkbd_reset;
44 #else
45 static bool atkbd_reset = true;
46 #endif
47 module_param_named(reset, atkbd_reset, bool, 0);
48 MODULE_PARM_DESC(reset, "Reset keyboard during initialization");
49
50 static bool atkbd_softrepeat;
51 module_param_named(softrepeat, atkbd_softrepeat, bool, 0);
52 MODULE_PARM_DESC(softrepeat, "Use software keyboard repeat");
53
54 static bool atkbd_softraw = true;
55 module_param_named(softraw, atkbd_softraw, bool, 0);
56 MODULE_PARM_DESC(softraw, "Use software generated rawmode");
57
58 static bool 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 bool 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 static bool atkbd_terminal;
67 module_param_named(terminal, atkbd_terminal, bool, 0);
68 MODULE_PARM_DESC(terminal, "Enable break codes on an IBM Terminal keyboard connected via AT/PS2");
69
70 /*
71 * Scancode to keycode tables. These are just the default setting, and
72 * are loadable via a userland utility.
73 */
74
75 #define ATKBD_KEYMAP_SIZE 512
76
77 static const unsigned short atkbd_set2_keycode[ATKBD_KEYMAP_SIZE] = {
78
79 #ifdef CONFIG_KEYBOARD_ATKBD_HP_KEYCODES
80
81 /* XXX: need a more general approach */
82
83 #include "hpps2atkbd.h" /* include the keyboard scancodes */
84
85 #else
86 0, 67, 65, 63, 61, 59, 60, 88, 0, 68, 66, 64, 62, 15, 41,117,
87 0, 56, 42, 93, 29, 16, 2, 0, 0, 0, 44, 31, 30, 17, 3, 0,
88 0, 46, 45, 32, 18, 5, 4, 95, 0, 57, 47, 33, 20, 19, 6,183,
89 0, 49, 48, 35, 34, 21, 7,184, 0, 0, 50, 36, 22, 8, 9,185,
90 0, 51, 37, 23, 24, 11, 10, 0, 0, 52, 53, 38, 39, 25, 12, 0,
91 0, 89, 40, 0, 26, 13, 0, 0, 58, 54, 28, 27, 0, 43, 0, 85,
92 0, 86, 91, 90, 92, 0, 14, 94, 0, 79,124, 75, 71,121, 0, 0,
93 82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99,
94
95 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
96 217,100,255, 0, 97,165, 0, 0,156, 0, 0, 0, 0, 0, 0,125,
97 173,114, 0,113, 0, 0, 0,126,128, 0, 0,140, 0, 0, 0,127,
98 159, 0,115, 0,164, 0, 0,116,158, 0,172,166, 0, 0, 0,142,
99 157, 0, 0, 0, 0, 0, 0, 0,155, 0, 98, 0, 0,163, 0, 0,
100 226, 0, 0, 0, 0, 0, 0, 0, 0,255, 96, 0, 0, 0,143, 0,
101 0, 0, 0, 0, 0, 0, 0, 0, 0,107, 0,105,102, 0, 0,112,
102 110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119, 0,
103
104 0, 0, 0, 65, 99,
105 #endif
106 };
107
108 static const unsigned short atkbd_set3_keycode[ATKBD_KEYMAP_SIZE] = {
109
110 0, 0, 0, 0, 0, 0, 0, 59, 1,138,128,129,130, 15, 41, 60,
111 131, 29, 42, 86, 58, 16, 2, 61,133, 56, 44, 31, 30, 17, 3, 62,
112 134, 46, 45, 32, 18, 5, 4, 63,135, 57, 47, 33, 20, 19, 6, 64,
113 136, 49, 48, 35, 34, 21, 7, 65,137,100, 50, 36, 22, 8, 9, 66,
114 125, 51, 37, 23, 24, 11, 10, 67,126, 52, 53, 38, 39, 25, 12, 68,
115 113,114, 40, 43, 26, 13, 87, 99, 97, 54, 28, 27, 43, 43, 88, 70,
116 108,105,119,103,111,107, 14,110, 0, 79,106, 75, 71,109,102,104,
117 82, 83, 80, 76, 77, 72, 69, 98, 0, 96, 81, 0, 78, 73, 55,183,
118
119 184,185,186,187, 74, 94, 92, 93, 0, 0, 0,125,126,127,112, 0,
120 0,139,172,163,165,115,152,172,166,140,160,154,113,114,167,168,
121 148,149,147,140
122 };
123
124 static const unsigned short atkbd_unxlate_table[128] = {
125 0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13,
126 21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27,
127 35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42,
128 50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88, 5, 6, 4, 12, 3,
129 11, 2, 10, 1, 9,119,126,108,117,125,123,107,115,116,121,105,
130 114,122,112,113,127, 96, 97,120, 7, 15, 23, 31, 39, 47, 55, 63,
131 71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111,
132 19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110
133 };
134
135 #define ATKBD_CMD_SETLEDS 0x10ed
136 #define ATKBD_CMD_GSCANSET 0x11f0
137 #define ATKBD_CMD_SSCANSET 0x10f0
138 #define ATKBD_CMD_GETID 0x02f2
139 #define ATKBD_CMD_SETREP 0x10f3
140 #define ATKBD_CMD_ENABLE 0x00f4
141 #define ATKBD_CMD_RESET_DIS 0x00f5 /* Reset to defaults and disable */
142 #define ATKBD_CMD_RESET_DEF 0x00f6 /* Reset to defaults */
143 #define ATKBD_CMD_SETALL_MB 0x00f8 /* Set all keys to give break codes */
144 #define ATKBD_CMD_SETALL_MBR 0x00fa /* ... and repeat */
145 #define ATKBD_CMD_RESET_BAT 0x02ff
146 #define ATKBD_CMD_RESEND 0x00fe
147 #define ATKBD_CMD_EX_ENABLE 0x10ea
148 #define ATKBD_CMD_EX_SETLEDS 0x20eb
149 #define ATKBD_CMD_OK_GETID 0x02e8
150
151 #define ATKBD_RET_ACK 0xfa
152 #define ATKBD_RET_NAK 0xfe
153 #define ATKBD_RET_BAT 0xaa
154 #define ATKBD_RET_EMUL0 0xe0
155 #define ATKBD_RET_EMUL1 0xe1
156 #define ATKBD_RET_RELEASE 0xf0
157 #define ATKBD_RET_HANJA 0xf1
158 #define ATKBD_RET_HANGEUL 0xf2
159 #define ATKBD_RET_ERR 0xff
160
161 #define ATKBD_KEY_UNKNOWN 0
162 #define ATKBD_KEY_NULL 255
163
164 #define ATKBD_SCR_1 0xfffe
165 #define ATKBD_SCR_2 0xfffd
166 #define ATKBD_SCR_4 0xfffc
167 #define ATKBD_SCR_8 0xfffb
168 #define ATKBD_SCR_CLICK 0xfffa
169 #define ATKBD_SCR_LEFT 0xfff9
170 #define ATKBD_SCR_RIGHT 0xfff8
171
172 #define ATKBD_SPECIAL ATKBD_SCR_RIGHT
173
174 #define ATKBD_LED_EVENT_BIT 0
175 #define ATKBD_REP_EVENT_BIT 1
176
177 #define ATKBD_XL_ERR 0x01
178 #define ATKBD_XL_BAT 0x02
179 #define ATKBD_XL_ACK 0x04
180 #define ATKBD_XL_NAK 0x08
181 #define ATKBD_XL_HANGEUL 0x10
182 #define ATKBD_XL_HANJA 0x20
183
184 static const struct {
185 unsigned short keycode;
186 unsigned char set2;
187 } atkbd_scroll_keys[] = {
188 { ATKBD_SCR_1, 0xc5 },
189 { ATKBD_SCR_2, 0x9d },
190 { ATKBD_SCR_4, 0xa4 },
191 { ATKBD_SCR_8, 0x9b },
192 { ATKBD_SCR_CLICK, 0xe0 },
193 { ATKBD_SCR_LEFT, 0xcb },
194 { ATKBD_SCR_RIGHT, 0xd2 },
195 };
196
197 /*
198 * The atkbd control structure
199 */
200
201 struct atkbd {
202
203 struct ps2dev ps2dev;
204 struct input_dev *dev;
205
206 /* Written only during init */
207 char name[64];
208 char phys[32];
209
210 unsigned short id;
211 unsigned short keycode[ATKBD_KEYMAP_SIZE];
212 DECLARE_BITMAP(force_release_mask, ATKBD_KEYMAP_SIZE);
213 unsigned char set;
214 bool translated;
215 bool extra;
216 bool write;
217 bool softrepeat;
218 bool softraw;
219 bool scroll;
220 bool enabled;
221
222 /* Accessed only from interrupt */
223 unsigned char emul;
224 bool resend;
225 bool release;
226 unsigned long xl_bit;
227 unsigned int last;
228 unsigned long time;
229 unsigned long err_count;
230
231 struct delayed_work event_work;
232 unsigned long event_jiffies;
233 unsigned long event_mask;
234
235 /* Serializes reconnect(), attr->set() and event work */
236 struct mutex mutex;
237 };
238
239 /*
240 * System-specific keymap fixup routine
241 */
242 static void (*atkbd_platform_fixup)(struct atkbd *, const void *data);
243 static void *atkbd_platform_fixup_data;
244 static unsigned int (*atkbd_platform_scancode_fixup)(struct atkbd *, unsigned int);
245
246 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
247 ssize_t (*handler)(struct atkbd *, char *));
248 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
249 ssize_t (*handler)(struct atkbd *, const char *, size_t));
250 #define ATKBD_DEFINE_ATTR(_name) \
251 static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
252 static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \
253 static ssize_t atkbd_do_show_##_name(struct device *d, \
254 struct device_attribute *attr, char *b) \
255 { \
256 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
257 } \
258 static ssize_t atkbd_do_set_##_name(struct device *d, \
259 struct device_attribute *attr, const char *b, size_t s) \
260 { \
261 return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \
262 } \
263 static struct device_attribute atkbd_attr_##_name = \
264 __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name);
265
266 ATKBD_DEFINE_ATTR(extra);
267 ATKBD_DEFINE_ATTR(force_release);
268 ATKBD_DEFINE_ATTR(scroll);
269 ATKBD_DEFINE_ATTR(set);
270 ATKBD_DEFINE_ATTR(softrepeat);
271 ATKBD_DEFINE_ATTR(softraw);
272
273 #define ATKBD_DEFINE_RO_ATTR(_name) \
274 static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
275 static ssize_t atkbd_do_show_##_name(struct device *d, \
276 struct device_attribute *attr, char *b) \
277 { \
278 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
279 } \
280 static struct device_attribute atkbd_attr_##_name = \
281 __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL);
282
283 ATKBD_DEFINE_RO_ATTR(err_count);
284
285 static struct attribute *atkbd_attributes[] = {
286 &atkbd_attr_extra.attr,
287 &atkbd_attr_force_release.attr,
288 &atkbd_attr_scroll.attr,
289 &atkbd_attr_set.attr,
290 &atkbd_attr_softrepeat.attr,
291 &atkbd_attr_softraw.attr,
292 &atkbd_attr_err_count.attr,
293 NULL
294 };
295
296 static struct attribute_group atkbd_attribute_group = {
297 .attrs = atkbd_attributes,
298 };
299
300 static const unsigned int xl_table[] = {
301 ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK,
302 ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL,
303 };
304
305 /*
306 * Checks if we should mangle the scancode to extract 'release' bit
307 * in translated mode.
308 */
309 static bool atkbd_need_xlate(unsigned long xl_bit, unsigned char code)
310 {
311 int i;
312
313 if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1)
314 return false;
315
316 for (i = 0; i < ARRAY_SIZE(xl_table); i++)
317 if (code == xl_table[i])
318 return test_bit(i, &xl_bit);
319
320 return true;
321 }
322
323 /*
324 * Calculates new value of xl_bit so the driver can distinguish
325 * between make/break pair of scancodes for select keys and PS/2
326 * protocol responses.
327 */
328 static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code)
329 {
330 int i;
331
332 for (i = 0; i < ARRAY_SIZE(xl_table); i++) {
333 if (!((code ^ xl_table[i]) & 0x7f)) {
334 if (code & 0x80)
335 __clear_bit(i, &atkbd->xl_bit);
336 else
337 __set_bit(i, &atkbd->xl_bit);
338 break;
339 }
340 }
341 }
342
343 /*
344 * Encode the scancode, 0xe0 prefix, and high bit into a single integer,
345 * keeping kernel 2.4 compatibility for set 2
346 */
347 static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code)
348 {
349 if (atkbd->set == 3) {
350 if (atkbd->emul == 1)
351 code |= 0x100;
352 } else {
353 code = (code & 0x7f) | ((code & 0x80) << 1);
354 if (atkbd->emul == 1)
355 code |= 0x80;
356 }
357
358 return code;
359 }
360
361 /*
362 * atkbd_interrupt(). Here takes place processing of data received from
363 * the keyboard into events.
364 */
365
366 static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
367 unsigned int flags)
368 {
369 struct atkbd *atkbd = serio_get_drvdata(serio);
370 struct input_dev *dev = atkbd->dev;
371 unsigned int code = data;
372 int scroll = 0, hscroll = 0, click = -1;
373 int value;
374 unsigned short keycode;
375
376 dev_dbg(&serio->dev, "Received %02x flags %02x\n", data, flags);
377
378 #if !defined(__i386__) && !defined (__x86_64__)
379 if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
380 dev_warn(&serio->dev, "Frame/parity error: %02x\n", flags);
381 serio_write(serio, ATKBD_CMD_RESEND);
382 atkbd->resend = true;
383 goto out;
384 }
385
386 if (!flags && data == ATKBD_RET_ACK)
387 atkbd->resend = false;
388 #endif
389
390 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK))
391 if (ps2_handle_ack(&atkbd->ps2dev, data))
392 goto out;
393
394 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD))
395 if (ps2_handle_response(&atkbd->ps2dev, data))
396 goto out;
397
398 if (!atkbd->enabled)
399 goto out;
400
401 input_event(dev, EV_MSC, MSC_RAW, code);
402
403 if (atkbd_platform_scancode_fixup)
404 code = atkbd_platform_scancode_fixup(atkbd, code);
405
406 if (atkbd->translated) {
407
408 if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) {
409 atkbd->release = code >> 7;
410 code &= 0x7f;
411 }
412
413 if (!atkbd->emul)
414 atkbd_calculate_xl_bit(atkbd, data);
415 }
416
417 switch (code) {
418 case ATKBD_RET_BAT:
419 atkbd->enabled = false;
420 serio_reconnect(atkbd->ps2dev.serio);
421 goto out;
422 case ATKBD_RET_EMUL0:
423 atkbd->emul = 1;
424 goto out;
425 case ATKBD_RET_EMUL1:
426 atkbd->emul = 2;
427 goto out;
428 case ATKBD_RET_RELEASE:
429 atkbd->release = true;
430 goto out;
431 case ATKBD_RET_ACK:
432 case ATKBD_RET_NAK:
433 if (printk_ratelimit())
434 dev_warn(&serio->dev,
435 "Spurious %s on %s. "
436 "Some program might be trying to access hardware directly.\n",
437 data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
438 goto out;
439 case ATKBD_RET_ERR:
440 atkbd->err_count++;
441 dev_dbg(&serio->dev, "Keyboard on %s reports too many keys pressed.\n",
442 serio->phys);
443 goto out;
444 }
445
446 code = atkbd_compat_scancode(atkbd, code);
447
448 if (atkbd->emul && --atkbd->emul)
449 goto out;
450
451 keycode = atkbd->keycode[code];
452
453 if (keycode != ATKBD_KEY_NULL)
454 input_event(dev, EV_MSC, MSC_SCAN, code);
455
456 switch (keycode) {
457 case ATKBD_KEY_NULL:
458 break;
459 case ATKBD_KEY_UNKNOWN:
460 dev_warn(&serio->dev,
461 "Unknown key %s (%s set %d, code %#x on %s).\n",
462 atkbd->release ? "released" : "pressed",
463 atkbd->translated ? "translated" : "raw",
464 atkbd->set, code, serio->phys);
465 dev_warn(&serio->dev,
466 "Use 'setkeycodes %s%02x <keycode>' to make it known.\n",
467 code & 0x80 ? "e0" : "", code & 0x7f);
468 input_sync(dev);
469 break;
470 case ATKBD_SCR_1:
471 scroll = 1;
472 break;
473 case ATKBD_SCR_2:
474 scroll = 2;
475 break;
476 case ATKBD_SCR_4:
477 scroll = 4;
478 break;
479 case ATKBD_SCR_8:
480 scroll = 8;
481 break;
482 case ATKBD_SCR_CLICK:
483 click = !atkbd->release;
484 break;
485 case ATKBD_SCR_LEFT:
486 hscroll = -1;
487 break;
488 case ATKBD_SCR_RIGHT:
489 hscroll = 1;
490 break;
491 default:
492 if (atkbd->release) {
493 value = 0;
494 atkbd->last = 0;
495 } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) {
496 /* Workaround Toshiba laptop multiple keypress */
497 value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2;
498 } else {
499 value = 1;
500 atkbd->last = code;
501 atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2;
502 }
503
504 input_event(dev, EV_KEY, keycode, value);
505 input_sync(dev);
506
507 if (value && test_bit(code, atkbd->force_release_mask)) {
508 input_report_key(dev, keycode, 0);
509 input_sync(dev);
510 }
511 }
512
513 if (atkbd->scroll) {
514 if (click != -1)
515 input_report_key(dev, BTN_MIDDLE, click);
516 input_report_rel(dev, REL_WHEEL,
517 atkbd->release ? -scroll : scroll);
518 input_report_rel(dev, REL_HWHEEL, hscroll);
519 input_sync(dev);
520 }
521
522 atkbd->release = false;
523 out:
524 return IRQ_HANDLED;
525 }
526
527 static int atkbd_set_repeat_rate(struct atkbd *atkbd)
528 {
529 const short period[32] =
530 { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125,
531 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 };
532 const short delay[4] =
533 { 250, 500, 750, 1000 };
534
535 struct input_dev *dev = atkbd->dev;
536 unsigned char param;
537 int i = 0, j = 0;
538
539 while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD])
540 i++;
541 dev->rep[REP_PERIOD] = period[i];
542
543 while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY])
544 j++;
545 dev->rep[REP_DELAY] = delay[j];
546
547 param = i | (j << 5);
548 return ps2_command(&atkbd->ps2dev, &param, ATKBD_CMD_SETREP);
549 }
550
551 static int atkbd_set_leds(struct atkbd *atkbd)
552 {
553 struct input_dev *dev = atkbd->dev;
554 unsigned char param[2];
555
556 param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
557 | (test_bit(LED_NUML, dev->led) ? 2 : 0)
558 | (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
559 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
560 return -1;
561
562 if (atkbd->extra) {
563 param[0] = 0;
564 param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
565 | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
566 | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
567 | (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
568 | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
569 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS))
570 return -1;
571 }
572
573 return 0;
574 }
575
576 /*
577 * atkbd_event_work() is used to complete processing of events that
578 * can not be processed by input_event() which is often called from
579 * interrupt context.
580 */
581
582 static void atkbd_event_work(struct work_struct *work)
583 {
584 struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work);
585
586 mutex_lock(&atkbd->mutex);
587
588 if (!atkbd->enabled) {
589 /*
590 * Serio ports are resumed asynchronously so while driver core
591 * thinks that device is already fully operational in reality
592 * it may not be ready yet. In this case we need to keep
593 * rescheduling till reconnect completes.
594 */
595 schedule_delayed_work(&atkbd->event_work,
596 msecs_to_jiffies(100));
597 } else {
598 if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask))
599 atkbd_set_leds(atkbd);
600
601 if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask))
602 atkbd_set_repeat_rate(atkbd);
603 }
604
605 mutex_unlock(&atkbd->mutex);
606 }
607
608 /*
609 * Schedule switch for execution. We need to throttle requests,
610 * otherwise keyboard may become unresponsive.
611 */
612 static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit)
613 {
614 unsigned long delay = msecs_to_jiffies(50);
615
616 if (time_after(jiffies, atkbd->event_jiffies + delay))
617 delay = 0;
618
619 atkbd->event_jiffies = jiffies;
620 set_bit(event_bit, &atkbd->event_mask);
621 mb();
622 schedule_delayed_work(&atkbd->event_work, delay);
623 }
624
625 /*
626 * Event callback from the input module. Events that change the state of
627 * the hardware are processed here. If action can not be performed in
628 * interrupt context it is offloaded to atkbd_event_work.
629 */
630
631 static int atkbd_event(struct input_dev *dev,
632 unsigned int type, unsigned int code, int value)
633 {
634 struct atkbd *atkbd = input_get_drvdata(dev);
635
636 if (!atkbd->write)
637 return -1;
638
639 switch (type) {
640
641 case EV_LED:
642 atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT);
643 return 0;
644
645 case EV_REP:
646 if (!atkbd->softrepeat)
647 atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT);
648 return 0;
649
650 default:
651 return -1;
652 }
653 }
654
655 /*
656 * atkbd_enable() signals that interrupt handler is allowed to
657 * generate input events.
658 */
659
660 static inline void atkbd_enable(struct atkbd *atkbd)
661 {
662 serio_pause_rx(atkbd->ps2dev.serio);
663 atkbd->enabled = true;
664 serio_continue_rx(atkbd->ps2dev.serio);
665 }
666
667 /*
668 * atkbd_disable() tells input handler that all incoming data except
669 * for ACKs and command response should be dropped.
670 */
671
672 static inline void atkbd_disable(struct atkbd *atkbd)
673 {
674 serio_pause_rx(atkbd->ps2dev.serio);
675 atkbd->enabled = false;
676 serio_continue_rx(atkbd->ps2dev.serio);
677 }
678
679 static int atkbd_activate(struct atkbd *atkbd)
680 {
681 struct ps2dev *ps2dev = &atkbd->ps2dev;
682
683 /*
684 * Enable the keyboard to receive keystrokes.
685 */
686
687 if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) {
688 dev_err(&ps2dev->serio->dev,
689 "Failed to enable keyboard on %s\n",
690 ps2dev->serio->phys);
691 return -1;
692 }
693
694 return 0;
695 }
696
697 /*
698 * atkbd_deactivate() resets and disables the keyboard from sending
699 * keystrokes.
700 */
701
702 static void atkbd_deactivate(struct atkbd *atkbd)
703 {
704 struct ps2dev *ps2dev = &atkbd->ps2dev;
705
706 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_DIS))
707 dev_err(&ps2dev->serio->dev,
708 "Failed to deactivate keyboard on %s\n",
709 ps2dev->serio->phys);
710 }
711
712 /*
713 * atkbd_probe() probes for an AT keyboard on a serio port.
714 */
715
716 static int atkbd_probe(struct atkbd *atkbd)
717 {
718 struct ps2dev *ps2dev = &atkbd->ps2dev;
719 unsigned char param[2];
720
721 /*
722 * Some systems, where the bit-twiddling when testing the io-lines of the
723 * controller may confuse the keyboard need a full reset of the keyboard. On
724 * these systems the BIOS also usually doesn't do it for us.
725 */
726
727 if (atkbd_reset)
728 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT))
729 dev_warn(&ps2dev->serio->dev,
730 "keyboard reset failed on %s\n",
731 ps2dev->serio->phys);
732
733 /*
734 * Then we check the keyboard ID. We should get 0xab83 under normal conditions.
735 * Some keyboards report different values, but the first byte is always 0xab or
736 * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
737 * should make sure we don't try to set the LEDs on it.
738 */
739
740 param[0] = param[1] = 0xa5; /* initialize with invalid values */
741 if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) {
742
743 /*
744 * If the get ID command failed, we check if we can at least set the LEDs on
745 * the keyboard. This should work on every keyboard out there. It also turns
746 * the LEDs off, which we want anyway.
747 */
748 param[0] = 0;
749 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
750 return -1;
751 atkbd->id = 0xabba;
752 return 0;
753 }
754
755 if (!ps2_is_keyboard_id(param[0]))
756 return -1;
757
758 atkbd->id = (param[0] << 8) | param[1];
759
760 if (atkbd->id == 0xaca1 && atkbd->translated) {
761 dev_err(&ps2dev->serio->dev,
762 "NCD terminal keyboards are only supported on non-translating controllers. "
763 "Use i8042.direct=1 to disable translation.\n");
764 return -1;
765 }
766
767 /*
768 * Make sure nothing is coming from the keyboard and disturbs our
769 * internal state.
770 */
771 atkbd_deactivate(atkbd);
772
773 return 0;
774 }
775
776 /*
777 * atkbd_select_set checks if a keyboard has a working Set 3 support, and
778 * sets it into that. Unfortunately there are keyboards that can be switched
779 * to Set 3, but don't work well in that (BTC Multimedia ...)
780 */
781
782 static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra)
783 {
784 struct ps2dev *ps2dev = &atkbd->ps2dev;
785 unsigned char param[2];
786
787 atkbd->extra = false;
788 /*
789 * For known special keyboards we can go ahead and set the correct set.
790 * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and
791 * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards.
792 */
793
794 if (atkbd->translated)
795 return 2;
796
797 if (atkbd->id == 0xaca1) {
798 param[0] = 3;
799 ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET);
800 return 3;
801 }
802
803 if (allow_extra) {
804 param[0] = 0x71;
805 if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) {
806 atkbd->extra = true;
807 return 2;
808 }
809 }
810
811 if (atkbd_terminal) {
812 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MB);
813 return 3;
814 }
815
816 if (target_set != 3)
817 return 2;
818
819 if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) {
820 atkbd->id = param[0] << 8 | param[1];
821 return 2;
822 }
823
824 param[0] = 3;
825 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
826 return 2;
827
828 param[0] = 0;
829 if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET))
830 return 2;
831
832 if (param[0] != 3) {
833 param[0] = 2;
834 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
835 return 2;
836 }
837
838 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR);
839
840 return 3;
841 }
842
843 static int atkbd_reset_state(struct atkbd *atkbd)
844 {
845 struct ps2dev *ps2dev = &atkbd->ps2dev;
846 unsigned char param[1];
847
848 /*
849 * Set the LEDs to a predefined state (all off).
850 */
851
852 param[0] = 0;
853 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
854 return -1;
855
856 /*
857 * Set autorepeat to fastest possible.
858 */
859
860 param[0] = 0;
861 if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP))
862 return -1;
863
864 return 0;
865 }
866
867 /*
868 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
869 * reboot.
870 */
871
872 static void atkbd_cleanup(struct serio *serio)
873 {
874 struct atkbd *atkbd = serio_get_drvdata(serio);
875
876 atkbd_disable(atkbd);
877 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_DEF);
878 }
879
880
881 /*
882 * atkbd_disconnect() closes and frees.
883 */
884
885 static void atkbd_disconnect(struct serio *serio)
886 {
887 struct atkbd *atkbd = serio_get_drvdata(serio);
888
889 sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
890
891 atkbd_disable(atkbd);
892
893 input_unregister_device(atkbd->dev);
894
895 /*
896 * Make sure we don't have a command in flight.
897 * Note that since atkbd->enabled is false event work will keep
898 * rescheduling itself until it gets canceled and will not try
899 * accessing freed input device or serio port.
900 */
901 cancel_delayed_work_sync(&atkbd->event_work);
902
903 serio_close(serio);
904 serio_set_drvdata(serio, NULL);
905 kfree(atkbd);
906 }
907
908 /*
909 * generate release events for the keycodes given in data
910 */
911 static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
912 const void *data)
913 {
914 const unsigned int *keys = data;
915 unsigned int i;
916
917 if (atkbd->set == 2)
918 for (i = 0; keys[i] != -1U; i++)
919 __set_bit(keys[i], atkbd->force_release_mask);
920 }
921
922 /*
923 * Most special keys (Fn+F?) on Dell laptops do not generate release
924 * events so we have to do it ourselves.
925 */
926 static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
927 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
928 };
929
930 /*
931 * Perform fixup for HP system that doesn't generate release
932 * for its video switch
933 */
934 static unsigned int atkbd_hp_forced_release_keys[] = {
935 0x94, -1U
936 };
937
938 /*
939 * Samsung NC10,NC20 with Fn+F? key release not working
940 */
941 static unsigned int atkbd_samsung_forced_release_keys[] = {
942 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
943 };
944
945 /*
946 * Amilo Pi 3525 key release for Fn+Volume keys not working
947 */
948 static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = {
949 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U
950 };
951
952 /*
953 * Amilo Xi 3650 key release for light touch bar not working
954 */
955 static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
956 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U
957 };
958
959 /*
960 * Soltech TA12 system with broken key release on volume keys and mute key
961 */
962 static unsigned int atkdb_soltech_ta12_forced_release_keys[] = {
963 0xa0, 0xae, 0xb0, -1U
964 };
965
966 /*
967 * Many notebooks don't send key release event for volume up/down
968 * keys, with key list below common among them
969 */
970 static unsigned int atkbd_volume_forced_release_keys[] = {
971 0xae, 0xb0, -1U
972 };
973
974 /*
975 * OQO 01+ multimedia keys (64--66) generate e0 6x upon release whereas
976 * they should be generating e4-e6 (0x80 | code).
977 */
978 static unsigned int atkbd_oqo_01plus_scancode_fixup(struct atkbd *atkbd,
979 unsigned int code)
980 {
981 if (atkbd->translated && atkbd->emul == 1 &&
982 (code == 0x64 || code == 0x65 || code == 0x66)) {
983 atkbd->emul = 0;
984 code |= 0x80;
985 }
986
987 return code;
988 }
989
990 /*
991 * atkbd_set_keycode_table() initializes keyboard's keycode table
992 * according to the selected scancode set
993 */
994
995 static void atkbd_set_keycode_table(struct atkbd *atkbd)
996 {
997 unsigned int scancode;
998 int i, j;
999
1000 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
1001 bitmap_zero(atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1002
1003 if (atkbd->translated) {
1004 for (i = 0; i < 128; i++) {
1005 scancode = atkbd_unxlate_table[i];
1006 atkbd->keycode[i] = atkbd_set2_keycode[scancode];
1007 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
1008 if (atkbd->scroll)
1009 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
1010 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
1011 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
1012 }
1013 } else if (atkbd->set == 3) {
1014 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
1015 } else {
1016 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
1017
1018 if (atkbd->scroll)
1019 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
1020 scancode = atkbd_scroll_keys[i].set2;
1021 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
1022 }
1023 }
1024
1025 /*
1026 * HANGEUL and HANJA keys do not send release events so we need to
1027 * generate such events ourselves
1028 */
1029 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
1030 atkbd->keycode[scancode] = KEY_HANGEUL;
1031 __set_bit(scancode, atkbd->force_release_mask);
1032
1033 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
1034 atkbd->keycode[scancode] = KEY_HANJA;
1035 __set_bit(scancode, atkbd->force_release_mask);
1036
1037 /*
1038 * Perform additional fixups
1039 */
1040 if (atkbd_platform_fixup)
1041 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
1042 }
1043
1044 /*
1045 * atkbd_set_device_attrs() sets up keyboard's input device structure
1046 */
1047
1048 static void atkbd_set_device_attrs(struct atkbd *atkbd)
1049 {
1050 struct input_dev *input_dev = atkbd->dev;
1051 int i;
1052
1053 if (atkbd->extra)
1054 snprintf(atkbd->name, sizeof(atkbd->name),
1055 "AT Set 2 Extra keyboard");
1056 else
1057 snprintf(atkbd->name, sizeof(atkbd->name),
1058 "AT %s Set %d keyboard",
1059 atkbd->translated ? "Translated" : "Raw", atkbd->set);
1060
1061 snprintf(atkbd->phys, sizeof(atkbd->phys),
1062 "%s/input0", atkbd->ps2dev.serio->phys);
1063
1064 input_dev->name = atkbd->name;
1065 input_dev->phys = atkbd->phys;
1066 input_dev->id.bustype = BUS_I8042;
1067 input_dev->id.vendor = 0x0001;
1068 input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
1069 input_dev->id.version = atkbd->id;
1070 input_dev->event = atkbd_event;
1071 input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
1072
1073 input_set_drvdata(input_dev, atkbd);
1074
1075 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
1076 BIT_MASK(EV_MSC);
1077
1078 if (atkbd->write) {
1079 input_dev->evbit[0] |= BIT_MASK(EV_LED);
1080 input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
1081 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
1082 }
1083
1084 if (atkbd->extra)
1085 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
1086 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
1087 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
1088
1089 if (!atkbd->softrepeat) {
1090 input_dev->rep[REP_DELAY] = 250;
1091 input_dev->rep[REP_PERIOD] = 33;
1092 }
1093
1094 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
1095 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
1096
1097 if (atkbd->scroll) {
1098 input_dev->evbit[0] |= BIT_MASK(EV_REL);
1099 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
1100 BIT_MASK(REL_HWHEEL);
1101 __set_bit(BTN_MIDDLE, input_dev->keybit);
1102 }
1103
1104 input_dev->keycode = atkbd->keycode;
1105 input_dev->keycodesize = sizeof(unsigned short);
1106 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
1107
1108 for (i = 0; i < ATKBD_KEYMAP_SIZE; i++) {
1109 if (atkbd->keycode[i] != KEY_RESERVED &&
1110 atkbd->keycode[i] != ATKBD_KEY_NULL &&
1111 atkbd->keycode[i] < ATKBD_SPECIAL) {
1112 __set_bit(atkbd->keycode[i], input_dev->keybit);
1113 }
1114 }
1115 }
1116
1117 /*
1118 * atkbd_connect() is called when the serio module finds an interface
1119 * that isn't handled yet by an appropriate device driver. We check if
1120 * there is an AT keyboard out there and if yes, we register ourselves
1121 * to the input module.
1122 */
1123
1124 static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
1125 {
1126 struct atkbd *atkbd;
1127 struct input_dev *dev;
1128 int err = -ENOMEM;
1129
1130 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
1131 dev = input_allocate_device();
1132 if (!atkbd || !dev)
1133 goto fail1;
1134
1135 atkbd->dev = dev;
1136 ps2_init(&atkbd->ps2dev, serio);
1137 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
1138 mutex_init(&atkbd->mutex);
1139
1140 switch (serio->id.type) {
1141
1142 case SERIO_8042_XL:
1143 atkbd->translated = true;
1144 /* Fall through */
1145
1146 case SERIO_8042:
1147 if (serio->write)
1148 atkbd->write = true;
1149 break;
1150 }
1151
1152 atkbd->softraw = atkbd_softraw;
1153 atkbd->softrepeat = atkbd_softrepeat;
1154 atkbd->scroll = atkbd_scroll;
1155
1156 if (atkbd->softrepeat)
1157 atkbd->softraw = true;
1158
1159 serio_set_drvdata(serio, atkbd);
1160
1161 err = serio_open(serio, drv);
1162 if (err)
1163 goto fail2;
1164
1165 if (atkbd->write) {
1166
1167 if (atkbd_probe(atkbd)) {
1168 err = -ENODEV;
1169 goto fail3;
1170 }
1171
1172 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
1173 atkbd_reset_state(atkbd);
1174
1175 } else {
1176 atkbd->set = 2;
1177 atkbd->id = 0xab00;
1178 }
1179
1180 atkbd_set_keycode_table(atkbd);
1181 atkbd_set_device_attrs(atkbd);
1182
1183 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group);
1184 if (err)
1185 goto fail3;
1186
1187 atkbd_enable(atkbd);
1188 if (serio->write)
1189 atkbd_activate(atkbd);
1190
1191 err = input_register_device(atkbd->dev);
1192 if (err)
1193 goto fail4;
1194
1195 return 0;
1196
1197 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
1198 fail3: serio_close(serio);
1199 fail2: serio_set_drvdata(serio, NULL);
1200 fail1: input_free_device(dev);
1201 kfree(atkbd);
1202 return err;
1203 }
1204
1205 /*
1206 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1207 * most likely called on resume.
1208 */
1209
1210 static int atkbd_reconnect(struct serio *serio)
1211 {
1212 struct atkbd *atkbd = serio_get_drvdata(serio);
1213 struct serio_driver *drv = serio->drv;
1214 int retval = -1;
1215
1216 if (!atkbd || !drv) {
1217 dev_dbg(&serio->dev,
1218 "reconnect request, but serio is disconnected, ignoring...\n");
1219 return -1;
1220 }
1221
1222 mutex_lock(&atkbd->mutex);
1223
1224 atkbd_disable(atkbd);
1225
1226 if (atkbd->write) {
1227 if (atkbd_probe(atkbd))
1228 goto out;
1229
1230 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
1231 goto out;
1232
1233 /*
1234 * Restore LED state and repeat rate. While input core
1235 * will do this for us at resume time reconnect may happen
1236 * because user requested it via sysfs or simply because
1237 * keyboard was unplugged and plugged in again so we need
1238 * to do it ourselves here.
1239 */
1240 atkbd_set_leds(atkbd);
1241 if (!atkbd->softrepeat)
1242 atkbd_set_repeat_rate(atkbd);
1243
1244 }
1245
1246 /*
1247 * Reset our state machine in case reconnect happened in the middle
1248 * of multi-byte scancode.
1249 */
1250 atkbd->xl_bit = 0;
1251 atkbd->emul = 0;
1252
1253 atkbd_enable(atkbd);
1254 if (atkbd->write)
1255 atkbd_activate(atkbd);
1256
1257 retval = 0;
1258
1259 out:
1260 mutex_unlock(&atkbd->mutex);
1261 return retval;
1262 }
1263
1264 static struct serio_device_id atkbd_serio_ids[] = {
1265 {
1266 .type = SERIO_8042,
1267 .proto = SERIO_ANY,
1268 .id = SERIO_ANY,
1269 .extra = SERIO_ANY,
1270 },
1271 {
1272 .type = SERIO_8042_XL,
1273 .proto = SERIO_ANY,
1274 .id = SERIO_ANY,
1275 .extra = SERIO_ANY,
1276 },
1277 {
1278 .type = SERIO_RS232,
1279 .proto = SERIO_PS2SER,
1280 .id = SERIO_ANY,
1281 .extra = SERIO_ANY,
1282 },
1283 { 0 }
1284 };
1285
1286 MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1287
1288 static struct serio_driver atkbd_drv = {
1289 .driver = {
1290 .name = "atkbd",
1291 },
1292 .description = DRIVER_DESC,
1293 .id_table = atkbd_serio_ids,
1294 .interrupt = atkbd_interrupt,
1295 .connect = atkbd_connect,
1296 .reconnect = atkbd_reconnect,
1297 .disconnect = atkbd_disconnect,
1298 .cleanup = atkbd_cleanup,
1299 };
1300
1301 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1302 ssize_t (*handler)(struct atkbd *, char *))
1303 {
1304 struct serio *serio = to_serio_port(dev);
1305 struct atkbd *atkbd = serio_get_drvdata(serio);
1306
1307 return handler(atkbd, buf);
1308 }
1309
1310 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1311 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1312 {
1313 struct serio *serio = to_serio_port(dev);
1314 struct atkbd *atkbd = serio_get_drvdata(serio);
1315 int retval;
1316
1317 retval = mutex_lock_interruptible(&atkbd->mutex);
1318 if (retval)
1319 return retval;
1320
1321 atkbd_disable(atkbd);
1322 retval = handler(atkbd, buf, count);
1323 atkbd_enable(atkbd);
1324
1325 mutex_unlock(&atkbd->mutex);
1326
1327 return retval;
1328 }
1329
1330 static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1331 {
1332 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1333 }
1334
1335 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1336 {
1337 struct input_dev *old_dev, *new_dev;
1338 unsigned int value;
1339 int err;
1340 bool old_extra;
1341 unsigned char old_set;
1342
1343 if (!atkbd->write)
1344 return -EIO;
1345
1346 err = kstrtouint(buf, 10, &value);
1347 if (err)
1348 return err;
1349
1350 if (value > 1)
1351 return -EINVAL;
1352
1353 if (atkbd->extra != value) {
1354 /*
1355 * Since device's properties will change we need to
1356 * unregister old device. But allocate and register
1357 * new one first to make sure we have it.
1358 */
1359 old_dev = atkbd->dev;
1360 old_extra = atkbd->extra;
1361 old_set = atkbd->set;
1362
1363 new_dev = input_allocate_device();
1364 if (!new_dev)
1365 return -ENOMEM;
1366
1367 atkbd->dev = new_dev;
1368 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
1369 atkbd_reset_state(atkbd);
1370 atkbd_activate(atkbd);
1371 atkbd_set_keycode_table(atkbd);
1372 atkbd_set_device_attrs(atkbd);
1373
1374 err = input_register_device(atkbd->dev);
1375 if (err) {
1376 input_free_device(new_dev);
1377
1378 atkbd->dev = old_dev;
1379 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1380 atkbd_set_keycode_table(atkbd);
1381 atkbd_set_device_attrs(atkbd);
1382
1383 return err;
1384 }
1385 input_unregister_device(old_dev);
1386
1387 }
1388 return count;
1389 }
1390
1391 static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf)
1392 {
1393 size_t len = bitmap_scnlistprintf(buf, PAGE_SIZE - 2,
1394 atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1395
1396 buf[len++] = '\n';
1397 buf[len] = '\0';
1398
1399 return len;
1400 }
1401
1402 static ssize_t atkbd_set_force_release(struct atkbd *atkbd,
1403 const char *buf, size_t count)
1404 {
1405 /* 64 bytes on stack should be acceptable */
1406 DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE);
1407 int err;
1408
1409 err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE);
1410 if (err)
1411 return err;
1412
1413 memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask));
1414 return count;
1415 }
1416
1417
1418 static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1419 {
1420 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1421 }
1422
1423 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1424 {
1425 struct input_dev *old_dev, *new_dev;
1426 unsigned int value;
1427 int err;
1428 bool old_scroll;
1429
1430 err = kstrtouint(buf, 10, &value);
1431 if (err)
1432 return err;
1433
1434 if (value > 1)
1435 return -EINVAL;
1436
1437 if (atkbd->scroll != value) {
1438 old_dev = atkbd->dev;
1439 old_scroll = atkbd->scroll;
1440
1441 new_dev = input_allocate_device();
1442 if (!new_dev)
1443 return -ENOMEM;
1444
1445 atkbd->dev = new_dev;
1446 atkbd->scroll = value;
1447 atkbd_set_keycode_table(atkbd);
1448 atkbd_set_device_attrs(atkbd);
1449
1450 err = input_register_device(atkbd->dev);
1451 if (err) {
1452 input_free_device(new_dev);
1453
1454 atkbd->scroll = old_scroll;
1455 atkbd->dev = old_dev;
1456 atkbd_set_keycode_table(atkbd);
1457 atkbd_set_device_attrs(atkbd);
1458
1459 return err;
1460 }
1461 input_unregister_device(old_dev);
1462 }
1463 return count;
1464 }
1465
1466 static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1467 {
1468 return sprintf(buf, "%d\n", atkbd->set);
1469 }
1470
1471 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1472 {
1473 struct input_dev *old_dev, *new_dev;
1474 unsigned int value;
1475 int err;
1476 unsigned char old_set;
1477 bool old_extra;
1478
1479 if (!atkbd->write)
1480 return -EIO;
1481
1482 err = kstrtouint(buf, 10, &value);
1483 if (err)
1484 return err;
1485
1486 if (value != 2 && value != 3)
1487 return -EINVAL;
1488
1489 if (atkbd->set != value) {
1490 old_dev = atkbd->dev;
1491 old_extra = atkbd->extra;
1492 old_set = atkbd->set;
1493
1494 new_dev = input_allocate_device();
1495 if (!new_dev)
1496 return -ENOMEM;
1497
1498 atkbd->dev = new_dev;
1499 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
1500 atkbd_reset_state(atkbd);
1501 atkbd_activate(atkbd);
1502 atkbd_set_keycode_table(atkbd);
1503 atkbd_set_device_attrs(atkbd);
1504
1505 err = input_register_device(atkbd->dev);
1506 if (err) {
1507 input_free_device(new_dev);
1508
1509 atkbd->dev = old_dev;
1510 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1511 atkbd_set_keycode_table(atkbd);
1512 atkbd_set_device_attrs(atkbd);
1513
1514 return err;
1515 }
1516 input_unregister_device(old_dev);
1517 }
1518 return count;
1519 }
1520
1521 static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1522 {
1523 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1524 }
1525
1526 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1527 {
1528 struct input_dev *old_dev, *new_dev;
1529 unsigned int value;
1530 int err;
1531 bool old_softrepeat, old_softraw;
1532
1533 if (!atkbd->write)
1534 return -EIO;
1535
1536 err = kstrtouint(buf, 10, &value);
1537 if (err)
1538 return err;
1539
1540 if (value > 1)
1541 return -EINVAL;
1542
1543 if (atkbd->softrepeat != value) {
1544 old_dev = atkbd->dev;
1545 old_softrepeat = atkbd->softrepeat;
1546 old_softraw = atkbd->softraw;
1547
1548 new_dev = input_allocate_device();
1549 if (!new_dev)
1550 return -ENOMEM;
1551
1552 atkbd->dev = new_dev;
1553 atkbd->softrepeat = value;
1554 if (atkbd->softrepeat)
1555 atkbd->softraw = true;
1556 atkbd_set_device_attrs(atkbd);
1557
1558 err = input_register_device(atkbd->dev);
1559 if (err) {
1560 input_free_device(new_dev);
1561
1562 atkbd->dev = old_dev;
1563 atkbd->softrepeat = old_softrepeat;
1564 atkbd->softraw = old_softraw;
1565 atkbd_set_device_attrs(atkbd);
1566
1567 return err;
1568 }
1569 input_unregister_device(old_dev);
1570 }
1571 return count;
1572 }
1573
1574
1575 static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1576 {
1577 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1578 }
1579
1580 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1581 {
1582 struct input_dev *old_dev, *new_dev;
1583 unsigned int value;
1584 int err;
1585 bool old_softraw;
1586
1587 err = kstrtouint(buf, 10, &value);
1588 if (err)
1589 return err;
1590
1591 if (value > 1)
1592 return -EINVAL;
1593
1594 if (atkbd->softraw != value) {
1595 old_dev = atkbd->dev;
1596 old_softraw = atkbd->softraw;
1597
1598 new_dev = input_allocate_device();
1599 if (!new_dev)
1600 return -ENOMEM;
1601
1602 atkbd->dev = new_dev;
1603 atkbd->softraw = value;
1604 atkbd_set_device_attrs(atkbd);
1605
1606 err = input_register_device(atkbd->dev);
1607 if (err) {
1608 input_free_device(new_dev);
1609
1610 atkbd->dev = old_dev;
1611 atkbd->softraw = old_softraw;
1612 atkbd_set_device_attrs(atkbd);
1613
1614 return err;
1615 }
1616 input_unregister_device(old_dev);
1617 }
1618 return count;
1619 }
1620
1621 static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1622 {
1623 return sprintf(buf, "%lu\n", atkbd->err_count);
1624 }
1625
1626 static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
1627 {
1628 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1629 atkbd_platform_fixup_data = id->driver_data;
1630
1631 return 1;
1632 }
1633
1634 static int __init atkbd_setup_scancode_fixup(const struct dmi_system_id *id)
1635 {
1636 atkbd_platform_scancode_fixup = id->driver_data;
1637
1638 return 1;
1639 }
1640
1641 static const struct dmi_system_id atkbd_dmi_quirk_table[] __initconst = {
1642 {
1643 .matches = {
1644 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1645 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1646 },
1647 .callback = atkbd_setup_forced_release,
1648 .driver_data = atkbd_dell_laptop_forced_release_keys,
1649 },
1650 {
1651 .matches = {
1652 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1653 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1654 },
1655 .callback = atkbd_setup_forced_release,
1656 .driver_data = atkbd_dell_laptop_forced_release_keys,
1657 },
1658 {
1659 .matches = {
1660 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1661 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1662 },
1663 .callback = atkbd_setup_forced_release,
1664 .driver_data = atkbd_hp_forced_release_keys,
1665 },
1666 {
1667 .matches = {
1668 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1669 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1670 },
1671 .callback = atkbd_setup_forced_release,
1672 .driver_data = atkbd_volume_forced_release_keys,
1673 },
1674 {
1675 .matches = {
1676 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1677 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"),
1678 },
1679 .callback = atkbd_setup_forced_release,
1680 .driver_data = atkbd_volume_forced_release_keys,
1681 },
1682 {
1683 .matches = {
1684 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1685 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"),
1686 },
1687 .callback = atkbd_setup_forced_release,
1688 .driver_data = atkbd_volume_forced_release_keys,
1689 },
1690 {
1691 .matches = {
1692 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1693 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"),
1694 },
1695 .callback = atkbd_setup_forced_release,
1696 .driver_data = atkbd_volume_forced_release_keys,
1697 },
1698 {
1699 /* Inventec Symphony */
1700 .matches = {
1701 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1702 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1703 },
1704 .callback = atkbd_setup_forced_release,
1705 .driver_data = atkbd_volume_forced_release_keys,
1706 },
1707 {
1708 /* Samsung NC10 */
1709 .matches = {
1710 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1711 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1712 },
1713 .callback = atkbd_setup_forced_release,
1714 .driver_data = atkbd_samsung_forced_release_keys,
1715 },
1716 {
1717 /* Samsung NC20 */
1718 .matches = {
1719 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1720 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
1721 },
1722 .callback = atkbd_setup_forced_release,
1723 .driver_data = atkbd_samsung_forced_release_keys,
1724 },
1725 {
1726 /* Samsung SQ45S70S */
1727 .matches = {
1728 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1729 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
1730 },
1731 .callback = atkbd_setup_forced_release,
1732 .driver_data = atkbd_samsung_forced_release_keys,
1733 },
1734 {
1735 /* Fujitsu Amilo PA 1510 */
1736 .matches = {
1737 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1738 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1739 },
1740 .callback = atkbd_setup_forced_release,
1741 .driver_data = atkbd_volume_forced_release_keys,
1742 },
1743 {
1744 /* Fujitsu Amilo Pi 3525 */
1745 .matches = {
1746 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1747 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"),
1748 },
1749 .callback = atkbd_setup_forced_release,
1750 .driver_data = atkbd_amilo_pi3525_forced_release_keys,
1751 },
1752 {
1753 /* Fujitsu Amilo Xi 3650 */
1754 .matches = {
1755 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1756 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"),
1757 },
1758 .callback = atkbd_setup_forced_release,
1759 .driver_data = atkbd_amilo_xi3650_forced_release_keys,
1760 },
1761 {
1762 .matches = {
1763 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"),
1764 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"),
1765 },
1766 .callback = atkbd_setup_forced_release,
1767 .driver_data = atkdb_soltech_ta12_forced_release_keys,
1768 },
1769 {
1770 /* OQO Model 01+ */
1771 .matches = {
1772 DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
1773 DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
1774 },
1775 .callback = atkbd_setup_scancode_fixup,
1776 .driver_data = atkbd_oqo_01plus_scancode_fixup,
1777 },
1778 { }
1779 };
1780
1781 static int __init atkbd_init(void)
1782 {
1783 dmi_check_system(atkbd_dmi_quirk_table);
1784
1785 return serio_register_driver(&atkbd_drv);
1786 }
1787
1788 static void __exit atkbd_exit(void)
1789 {
1790 serio_unregister_driver(&atkbd_drv);
1791 }
1792
1793 module_init(atkbd_init);
1794 module_exit(atkbd_exit);
Linux with added FPC-III support