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lib/dma-debug.c: mark file-local struct symbol static.
[linux-2.6-block.git] / drivers / input / keyboard / atkbd.c
CommitLineData
1da177e4
LT		 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>
1da177e4
LT		 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>
33d3f07a 29#include <linux/mutex.h>
554101e3 30#include <linux/dmi.h>
1da177e4
LT		 31
32#define DRIVER_DESC "AT and PS/2 keyboard driver"
33
34MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
35MODULE_DESCRIPTION(DRIVER_DESC);
36MODULE_LICENSE("GPL");
37
38static int atkbd_set = 2;
39module_param_named(set, atkbd_set, int, 0);
40MODULE_PARM_DESC(set, "Select keyboard code set (2 = default, 3 = PS/2 native)");
41
42#if defined(__i386__) || defined(__x86_64__) || defined(__hppa__)
43static int atkbd_reset;
44#else
45static int atkbd_reset = 1;
46#endif
47module_param_named(reset, atkbd_reset, bool, 0);
48MODULE_PARM_DESC(reset, "Reset keyboard during initialization");
49
50static int atkbd_softrepeat;
51module_param_named(softrepeat, atkbd_softrepeat, bool, 0);
52MODULE_PARM_DESC(softrepeat, "Use software keyboard repeat");
53
54static int atkbd_softraw = 1;
55module_param_named(softraw, atkbd_softraw, bool, 0);
56MODULE_PARM_DESC(softraw, "Use software generated rawmode");
57
0ae051a1 58static int atkbd_scroll;
1da177e4
LT		 59module_param_named(scroll, atkbd_scroll, bool, 0);
60MODULE_PARM_DESC(scroll, "Enable scroll-wheel on MS Office and similar keyboards");
61
62static int atkbd_extra;
63module_param_named(extra, atkbd_extra, bool, 0);
64MODULE_PARM_DESC(extra, "Enable extra LEDs and keys on IBM RapidAcces, EzKey and similar keyboards");
65
1da177e4
LT		 66/*
67 * Scancode to keycode tables. These are just the default setting, and
0211a9c8 68 * are loadable via a userland utility.
1da177e4
LT		 69 */
70
1ba36e11
DT		 71#define ATKBD_KEYMAP_SIZE 512
72
73static const unsigned short atkbd_set2_keycode[ATKBD_KEYMAP_SIZE] = {
1da177e4
LT		 74
75#ifdef CONFIG_KEYBOARD_ATKBD_HP_KEYCODES
76
77/* XXX: need a more general approach */
78
79#include "hpps2atkbd.h" /* include the keyboard scancodes */
80
81#else
82 0, 67, 65, 63, 61, 59, 60, 88, 0, 68, 66, 64, 62, 15, 41,117,
83 0, 56, 42, 93, 29, 16, 2, 0, 0, 0, 44, 31, 30, 17, 3, 0,
84 0, 46, 45, 32, 18, 5, 4, 95, 0, 57, 47, 33, 20, 19, 6,183,
85 0, 49, 48, 35, 34, 21, 7,184, 0, 0, 50, 36, 22, 8, 9,185,
86 0, 51, 37, 23, 24, 11, 10, 0, 0, 52, 53, 38, 39, 25, 12, 0,
87 0, 89, 40, 0, 26, 13, 0, 0, 58, 54, 28, 27, 0, 43, 0, 85,
88 0, 86, 91, 90, 92, 0, 14, 94, 0, 79,124, 75, 71,121, 0, 0,
89 82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99,
90
91 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
92 217,100,255, 0, 97,165, 0, 0,156, 0, 0, 0, 0, 0, 0,125,
93 173,114, 0,113, 0, 0, 0,126,128, 0, 0,140, 0, 0, 0,127,
72a42f24 94 159, 0,115, 0,164, 0, 0,116,158, 0,172,166, 0, 0, 0,142,
1da177e4
LT		 95 157, 0, 0, 0, 0, 0, 0, 0,155, 0, 98, 0, 0,163, 0, 0,
96 226, 0, 0, 0, 0, 0, 0, 0, 0,255, 96, 0, 0, 0,143, 0,
97 0, 0, 0, 0, 0, 0, 0, 0, 0,107, 0,105,102, 0, 0,112,
98 110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119, 0,
99
100 0, 0, 0, 65, 99,
101#endif
102};
103
1ba36e11 104static const unsigned short atkbd_set3_keycode[ATKBD_KEYMAP_SIZE] = {
1da177e4
LT		 105
106 0, 0, 0, 0, 0, 0, 0, 59, 1,138,128,129,130, 15, 41, 60,
107 131, 29, 42, 86, 58, 16, 2, 61,133, 56, 44, 31, 30, 17, 3, 62,
108 134, 46, 45, 32, 18, 5, 4, 63,135, 57, 47, 33, 20, 19, 6, 64,
109 136, 49, 48, 35, 34, 21, 7, 65,137,100, 50, 36, 22, 8, 9, 66,
110 125, 51, 37, 23, 24, 11, 10, 67,126, 52, 53, 38, 39, 25, 12, 68,
111 113,114, 40, 43, 26, 13, 87, 99, 97, 54, 28, 27, 43, 43, 88, 70,
112 108,105,119,103,111,107, 14,110, 0, 79,106, 75, 71,109,102,104,
113 82, 83, 80, 76, 77, 72, 69, 98, 0, 96, 81, 0, 78, 73, 55,183,
114
115 184,185,186,187, 74, 94, 92, 93, 0, 0, 0,125,126,127,112, 0,
72a42f24 116 0,139,172,163,165,115,152,172,166,140,160,154,113,114,167,168,
1da177e4
LT		 117 148,149,147,140
118};
119
f6d65610 120static const unsigned short atkbd_unxlate_table[128] = {
1da177e4
LT		 121 0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13,
122 21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27,
123 35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42,
124 50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88, 5, 6, 4, 12, 3,
125 11, 2, 10, 1, 9,119,126,108,117,125,123,107,115,116,121,105,
126 114,122,112,113,127, 96, 97,120, 7, 15, 23, 31, 39, 47, 55, 63,
127 71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111,
128 19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110
129};
130
131#define ATKBD_CMD_SETLEDS 0x10ed
132#define ATKBD_CMD_GSCANSET 0x11f0
133#define ATKBD_CMD_SSCANSET 0x10f0
134#define ATKBD_CMD_GETID 0x02f2
135#define ATKBD_CMD_SETREP 0x10f3
136#define ATKBD_CMD_ENABLE 0x00f4
137#define ATKBD_CMD_RESET_DIS 0x00f5
138#define ATKBD_CMD_SETALL_MBR 0x00fa
139#define ATKBD_CMD_RESET_BAT 0x02ff
140#define ATKBD_CMD_RESEND 0x00fe
141#define ATKBD_CMD_EX_ENABLE 0x10ea
142#define ATKBD_CMD_EX_SETLEDS 0x20eb
143#define ATKBD_CMD_OK_GETID 0x02e8
144
145#define ATKBD_RET_ACK 0xfa
146#define ATKBD_RET_NAK 0xfe
147#define ATKBD_RET_BAT 0xaa
148#define ATKBD_RET_EMUL0 0xe0
149#define ATKBD_RET_EMUL1 0xe1
150#define ATKBD_RET_RELEASE 0xf0
0ae051a1
DT		 151#define ATKBD_RET_HANJA 0xf1
152#define ATKBD_RET_HANGEUL 0xf2
1da177e4
LT		 153#define ATKBD_RET_ERR 0xff
154
155#define ATKBD_KEY_UNKNOWN 0
156#define ATKBD_KEY_NULL 255
157
158#define ATKBD_SCR_1 254
159#define ATKBD_SCR_2 253
160#define ATKBD_SCR_4 252
161#define ATKBD_SCR_8 251
162#define ATKBD_SCR_CLICK 250
163#define ATKBD_SCR_LEFT 249
164#define ATKBD_SCR_RIGHT 248
165
f6d65610 166#define ATKBD_SPECIAL ATKBD_SCR_RIGHT
1da177e4 167
0d4c8597
DT		 168#define ATKBD_LED_EVENT_BIT 0
169#define ATKBD_REP_EVENT_BIT 1
170
0ae051a1
DT		 171#define ATKBD_XL_ERR 0x01
172#define ATKBD_XL_BAT 0x02
173#define ATKBD_XL_ACK 0x04
174#define ATKBD_XL_NAK 0x08
175#define ATKBD_XL_HANGEUL 0x10
176#define ATKBD_XL_HANJA 0x20
177
f6d65610 178static const struct {
1da177e4
LT		 179 unsigned char keycode;
180 unsigned char set2;
181} atkbd_scroll_keys[] = {
182 { ATKBD_SCR_1, 0xc5 },
5212dd58
VP		 183 { ATKBD_SCR_2, 0x9d },
184 { ATKBD_SCR_4, 0xa4 },
185 { ATKBD_SCR_8, 0x9b },
1da177e4
LT		 186 { ATKBD_SCR_CLICK, 0xe0 },
187 { ATKBD_SCR_LEFT, 0xcb },
188 { ATKBD_SCR_RIGHT, 0xd2 },
189};
190
191/*
192 * The atkbd control structure
193 */
194
195struct atkbd {
196
3c42f0c3
DT		 197 struct ps2dev ps2dev;
198 struct input_dev *dev;
1da177e4
LT		 199
200 /* Written only during init */
201 char name[64];
202 char phys[32];
1da177e4
LT		 203
204 unsigned short id;
1ba36e11
DT		 205 unsigned short keycode[ATKBD_KEYMAP_SIZE];
206 DECLARE_BITMAP(force_release_mask, ATKBD_KEYMAP_SIZE);
1da177e4
LT		 207 unsigned char set;
208 unsigned char translated;
209 unsigned char extra;
210 unsigned char write;
211 unsigned char softrepeat;
212 unsigned char softraw;
213 unsigned char scroll;
214 unsigned char enabled;
215
216 /* Accessed only from interrupt */
217 unsigned char emul;
218 unsigned char resend;
219 unsigned char release;
0ae051a1 220 unsigned long xl_bit;
1da177e4
LT		 221 unsigned int last;
222 unsigned long time;
86255d9d 223 unsigned long err_count;
0d4c8597 224
da4249c9
DT		 225 struct delayed_work event_work;
226 unsigned long event_jiffies;
33d3f07a 227 struct mutex event_mutex;
0d4c8597 228 unsigned long event_mask;
1da177e4
LT		 229};
230
554101e3 231/*
36726dd9 232 * System-specific keymap fixup routine
554101e3 233 */
39191698
DM		 234static void (*atkbd_platform_fixup)(struct atkbd *, const void *data);
235static void *atkbd_platform_fixup_data;
e5713069 236static unsigned int (*atkbd_platform_scancode_fixup)(struct atkbd *, unsigned int);
554101e3 237
1da177e4
LT		 238static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
239 ssize_t (*handler)(struct atkbd *, char *));
240static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
241 ssize_t (*handler)(struct atkbd *, const char *, size_t));
242#define ATKBD_DEFINE_ATTR(_name) \
243static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
244static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \
86255d9d
DT		 245static ssize_t atkbd_do_show_##_name(struct device *d, \
246 struct device_attribute *attr, char *b) \
1da177e4
LT		 247{ \
248 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
249} \
86255d9d
DT		 250static ssize_t atkbd_do_set_##_name(struct device *d, \
251 struct device_attribute *attr, const char *b, size_t s) \
1da177e4
LT		 252{ \
253 return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \
254} \
d083e906 255static struct device_attribute atkbd_attr_##_name = \
1da177e4
LT		 256 __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name);
257
258ATKBD_DEFINE_ATTR(extra);
1ba36e11 259ATKBD_DEFINE_ATTR(force_release);
1da177e4
LT		 260ATKBD_DEFINE_ATTR(scroll);
261ATKBD_DEFINE_ATTR(set);
262ATKBD_DEFINE_ATTR(softrepeat);
263ATKBD_DEFINE_ATTR(softraw);
264
86255d9d
DT		 265#define ATKBD_DEFINE_RO_ATTR(_name) \
266static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
267static ssize_t atkbd_do_show_##_name(struct device *d, \
268 struct device_attribute *attr, char *b) \
269{ \
270 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
271} \
272static struct device_attribute atkbd_attr_##_name = \
273 __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL);
274
275ATKBD_DEFINE_RO_ATTR(err_count);
276
277static struct attribute *atkbd_attributes[] = {
278 &atkbd_attr_extra.attr,
1ba36e11 279 &atkbd_attr_force_release.attr,
86255d9d
DT		 280 &atkbd_attr_scroll.attr,
281 &atkbd_attr_set.attr,
282 &atkbd_attr_softrepeat.attr,
283 &atkbd_attr_softraw.attr,
284 &atkbd_attr_err_count.attr,
285 NULL
286};
287
288static struct attribute_group atkbd_attribute_group = {
289 .attrs = atkbd_attributes,
290};
291
0ae051a1
DT		 292static const unsigned int xl_table[] = {
293 ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK,
294 ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL,
295};
1da177e4 296
0ae051a1
DT		 297/*
298 * Checks if we should mangle the scancode to extract 'release' bit
299 * in translated mode.
300 */
301static int atkbd_need_xlate(unsigned long xl_bit, unsigned char code)
1da177e4 302{
0ae051a1
DT		 303 int i;
304
305 if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1)
306 return 0;
307
308 for (i = 0; i < ARRAY_SIZE(xl_table); i++)
309 if (code == xl_table[i])
310 return test_bit(i, &xl_bit);
311
312 return 1;
313}
314
315/*
316 * Calculates new value of xl_bit so the driver can distinguish
317 * between make/break pair of scancodes for select keys and PS/2
318 * protocol responses.
319 */
320static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code)
321{
322 int i;
323
324 for (i = 0; i < ARRAY_SIZE(xl_table); i++) {
325 if (!((code ^ xl_table[i]) & 0x7f)) {
326 if (code & 0x80)
327 __clear_bit(i, &atkbd->xl_bit);
328 else
329 __set_bit(i, &atkbd->xl_bit);
330 break;
331 }
332 }
333}
334
335/*
336 * Encode the scancode, 0xe0 prefix, and high bit into a single integer,
337 * keeping kernel 2.4 compatibility for set 2
338 */
339static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code)
340{
341 if (atkbd->set == 3) {
342 if (atkbd->emul == 1)
343 code |= 0x100;
344 } else {
345 code = (code & 0x7f) | ((code & 0x80) << 1);
346 if (atkbd->emul == 1)
347 code |= 0x80;
348 }
349
350 return code;
1da177e4
LT		 351}
352
353/*
354 * atkbd_interrupt(). Here takes place processing of data received from
355 * the keyboard into events.
356 */
357
358static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
7d12e780 359 unsigned int flags)
1da177e4
LT		 360{
361 struct atkbd *atkbd = serio_get_drvdata(serio);
0ae051a1 362 struct input_dev *dev = atkbd->dev;
1da177e4 363 unsigned int code = data;
554101e3 364 int scroll = 0, hscroll = 0, click = -1;
1da177e4 365 int value;
f6d65610 366 unsigned short keycode;
1da177e4
LT		 367
368#ifdef ATKBD_DEBUG
369 printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags);
370#endif
371
372#if !defined(__i386__) && !defined (__x86_64__)
373 if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
374 printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags);
375 serio_write(serio, ATKBD_CMD_RESEND);
376 atkbd->resend = 1;
377 goto out;
378 }
379
380 if (!flags && data == ATKBD_RET_ACK)
381 atkbd->resend = 0;
382#endif
383
384 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK))
385 if (ps2_handle_ack(&atkbd->ps2dev, data))
386 goto out;
387
388 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD))
389 if (ps2_handle_response(&atkbd->ps2dev, data))
390 goto out;
391
392 if (!atkbd->enabled)
393 goto out;
394
0ae051a1 395 input_event(dev, EV_MSC, MSC_RAW, code);
1da177e4 396
e5713069
JL		 397 if (atkbd_platform_scancode_fixup)
398 code = atkbd_platform_scancode_fixup(atkbd, code);
399
1da177e4
LT		 400 if (atkbd->translated) {
401
0ae051a1 402 if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) {
1da177e4
LT		 403 atkbd->release = code >> 7;
404 code &= 0x7f;
405 }
406
0ae051a1
DT		 407 if (!atkbd->emul)
408 atkbd_calculate_xl_bit(atkbd, data);
1da177e4
LT		 409 }
410
411 switch (code) {
412 case ATKBD_RET_BAT:
413 atkbd->enabled = 0;
dbc26344 414 serio_reconnect(atkbd->ps2dev.serio);
1da177e4
LT		 415 goto out;
416 case ATKBD_RET_EMUL0:
417 atkbd->emul = 1;
418 goto out;
419 case ATKBD_RET_EMUL1:
420 atkbd->emul = 2;
421 goto out;
422 case ATKBD_RET_RELEASE:
423 atkbd->release = 1;
424 goto out;
0ae051a1
DT		 425 case ATKBD_RET_ACK:
426 case ATKBD_RET_NAK:
9f7a60d6
QY		 427 if (printk_ratelimit())
428 printk(KERN_WARNING "atkbd.c: Spurious %s on %s. "
429 "Some program might be trying access hardware directly.\n",
430 data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
1da177e4 431 goto out;
1da177e4 432 case ATKBD_RET_ERR:
86255d9d
DT		 433 atkbd->err_count++;
434#ifdef ATKBD_DEBUG
1da177e4 435 printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys);
86255d9d 436#endif
1da177e4
LT		 437 goto out;
438 }
439
0ae051a1
DT		 440 code = atkbd_compat_scancode(atkbd, code);
441
442 if (atkbd->emul && --atkbd->emul)
443 goto out;
444
445 keycode = atkbd->keycode[code];
1da177e4 446
0ae051a1
DT		 447 if (keycode != ATKBD_KEY_NULL)
448 input_event(dev, EV_MSC, MSC_SCAN, code);
1da177e4 449
0ae051a1 450 switch (keycode) {
1da177e4
LT		 451 case ATKBD_KEY_NULL:
452 break;
453 case ATKBD_KEY_UNKNOWN:
0ae051a1
DT		 454 printk(KERN_WARNING
455 "atkbd.c: Unknown key %s (%s set %d, code %#x on %s).\n",
456 atkbd->release ? "released" : "pressed",
457 atkbd->translated ? "translated" : "raw",
458 atkbd->set, code, serio->phys);
459 printk(KERN_WARNING
460 "atkbd.c: Use 'setkeycodes %s%02x <keycode>' to make it known.\n",
461 code & 0x80 ? "e0" : "", code & 0x7f);
462 input_sync(dev);
1da177e4
LT		 463 break;
464 case ATKBD_SCR_1:
465 scroll = 1 - atkbd->release * 2;
466 break;
467 case ATKBD_SCR_2:
468 scroll = 2 - atkbd->release * 4;
469 break;
470 case ATKBD_SCR_4:
471 scroll = 4 - atkbd->release * 8;
472 break;
473 case ATKBD_SCR_8:
474 scroll = 8 - atkbd->release * 16;
475 break;
476 case ATKBD_SCR_CLICK:
477 click = !atkbd->release;
478 break;
479 case ATKBD_SCR_LEFT:
480 hscroll = -1;
481 break;
482 case ATKBD_SCR_RIGHT:
483 hscroll = 1;
484 break;
485 default:
0ae051a1
DT		 486 if (atkbd->release) {
487 value = 0;
488 atkbd->last = 0;
489 } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) {
490 /* Workaround Toshiba laptop multiple keypress */
491 value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2;
492 } else {
493 value = 1;
494 atkbd->last = code;
495 atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2;
1da177e4
LT		 496 }
497
f8b4c46c 498 input_event(dev, EV_KEY, keycode, value);
0ae051a1
DT		 499 input_sync(dev);
500
554101e3 501 if (value && test_bit(code, atkbd->force_release_mask)) {
0ae051a1
DT		 502 input_report_key(dev, keycode, 0);
503 input_sync(dev);
504 }
1da177e4
LT		 505 }
506
507 if (atkbd->scroll) {
1da177e4 508 if (click != -1)
0ae051a1
DT		 509 input_report_key(dev, BTN_MIDDLE, click);
510 input_report_rel(dev, REL_WHEEL, scroll);
511 input_report_rel(dev, REL_HWHEEL, hscroll);
512 input_sync(dev);
1da177e4
LT		 513 }
514
515 atkbd->release = 0;
516out:
517 return IRQ_HANDLED;
518}
519
3d0f0fa0 520static int atkbd_set_repeat_rate(struct atkbd *atkbd)
1da177e4 521{
1da177e4
LT		 522 const short period[32] =
523 { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125,
524 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 };
525 const short delay[4] =
526 { 250, 500, 750, 1000 };
0d4c8597 527
3d0f0fa0
DT		 528 struct input_dev *dev = atkbd->dev;
529 unsigned char param;
530 int i = 0, j = 0;
531
532 while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD])
533 i++;
534 dev->rep[REP_PERIOD] = period[i];
535
8ea371fb 536 while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY])
3d0f0fa0
DT		 537 j++;
538 dev->rep[REP_DELAY] = delay[j];
539
540 param = i | (j << 5);
541 return ps2_command(&atkbd->ps2dev, &param, ATKBD_CMD_SETREP);
542}
543
544static int atkbd_set_leds(struct atkbd *atkbd)
545{
0d4c8597 546 struct input_dev *dev = atkbd->dev;
1da177e4 547 unsigned char param[2];
1da177e4 548
3d0f0fa0
DT		 549 param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
550 | (test_bit(LED_NUML, dev->led) ? 2 : 0)
551 | (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
552 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
553 return -1;
0d4c8597 554
3d0f0fa0
DT		 555 if (atkbd->extra) {
556 param[0] = 0;
557 param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
558 | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
559 | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
560 | (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
561 | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
562 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS))
563 return -1;
0d4c8597
DT		 564 }
565
3d0f0fa0
DT		 566 return 0;
567}
568
569/*
570 * atkbd_event_work() is used to complete processing of events that
571 * can not be processed by input_event() which is often called from
572 * interrupt context.
573 */
574
65f27f38 575static void atkbd_event_work(struct work_struct *work)
3d0f0fa0 576{
da4249c9 577 struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work);
3d0f0fa0
DT		 578
579 mutex_lock(&atkbd->event_mutex);
580
94dfb0d6
DT		 581 if (!atkbd->enabled) {
582 /*
583 * Serio ports are resumed asynchronously so while driver core
584 * thinks that device is already fully operational in reality
585 * it may not be ready yet. In this case we need to keep
586 * rescheduling till reconnect completes.
587 */
588 schedule_delayed_work(&atkbd->event_work,
589 msecs_to_jiffies(100));
590 } else {
591 if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask))
592 atkbd_set_leds(atkbd);
593
594 if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask))
595 atkbd_set_repeat_rate(atkbd);
596 }
0d4c8597 597
33d3f07a 598 mutex_unlock(&atkbd->event_mutex);
0d4c8597
DT		 599}
600
da4249c9
DT		 601/*
602 * Schedule switch for execution. We need to throttle requests,
603 * otherwise keyboard may become unresponsive.
604 */
605static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit)
606{
607 unsigned long delay = msecs_to_jiffies(50);
608
609 if (time_after(jiffies, atkbd->event_jiffies + delay))
610 delay = 0;
611
612 atkbd->event_jiffies = jiffies;
613 set_bit(event_bit, &atkbd->event_mask);
614 wmb();
615 schedule_delayed_work(&atkbd->event_work, delay);
616}
617
0d4c8597
DT		 618/*
619 * Event callback from the input module. Events that change the state of
620 * the hardware are processed here. If action can not be performed in
621 * interrupt context it is offloaded to atkbd_event_work.
622 */
623
da4249c9
DT		 624static int atkbd_event(struct input_dev *dev,
625 unsigned int type, unsigned int code, int value)
0d4c8597 626{
b356872f 627 struct atkbd *atkbd = input_get_drvdata(dev);
0d4c8597 628
1da177e4
LT		 629 if (!atkbd->write)
630 return -1;
631
632 switch (type) {
633
634 case EV_LED:
da4249c9 635 atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT);
1da177e4
LT		 636 return 0;
637
1da177e4 638 case EV_REP:
da4249c9
DT		 639 if (!atkbd->softrepeat)
640 atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT);
1da177e4
LT		 641 return 0;
642 }
643
644 return -1;
645}
646
647/*
648 * atkbd_enable() signals that interrupt handler is allowed to
649 * generate input events.
650 */
651
652static inline void atkbd_enable(struct atkbd *atkbd)
653{
654 serio_pause_rx(atkbd->ps2dev.serio);
655 atkbd->enabled = 1;
656 serio_continue_rx(atkbd->ps2dev.serio);
657}
658
659/*
660 * atkbd_disable() tells input handler that all incoming data except
661 * for ACKs and command response should be dropped.
662 */
663
664static inline void atkbd_disable(struct atkbd *atkbd)
665{
666 serio_pause_rx(atkbd->ps2dev.serio);
667 atkbd->enabled = 0;
668 serio_continue_rx(atkbd->ps2dev.serio);
669}
670
671/*
672 * atkbd_probe() probes for an AT keyboard on a serio port.
673 */
674
675static int atkbd_probe(struct atkbd *atkbd)
676{
677 struct ps2dev *ps2dev = &atkbd->ps2dev;
678 unsigned char param[2];
679
680/*
681 * Some systems, where the bit-twiddling when testing the io-lines of the
682 * controller may confuse the keyboard need a full reset of the keyboard. On
683 * these systems the BIOS also usually doesn't do it for us.
684 */
685
686 if (atkbd_reset)
687 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT))
688 printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", ps2dev->serio->phys);
689
690/*
691 * Then we check the keyboard ID. We should get 0xab83 under normal conditions.
692 * Some keyboards report different values, but the first byte is always 0xab or
693 * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
694 * should make sure we don't try to set the LEDs on it.
695 */
696
697 param[0] = param[1] = 0xa5; /* initialize with invalid values */
698 if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) {
699
700/*
701 * If the get ID command failed, we check if we can at least set the LEDs on
702 * the keyboard. This should work on every keyboard out there. It also turns
703 * the LEDs off, which we want anyway.
704 */
705 param[0] = 0;
706 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
707 return -1;
708 atkbd->id = 0xabba;
709 return 0;
710 }
711
9807879b 712 if (!ps2_is_keyboard_id(param[0]))
1da177e4
LT		 713 return -1;
714
715 atkbd->id = (param[0] << 8) | param[1];
716
717 if (atkbd->id == 0xaca1 && atkbd->translated) {
718 printk(KERN_ERR "atkbd.c: NCD terminal keyboards are only supported on non-translating\n");
719 printk(KERN_ERR "atkbd.c: controllers. Use i8042.direct=1 to disable translation.\n");
720 return -1;
721 }
722
723 return 0;
724}
725
726/*
727 * atkbd_select_set checks if a keyboard has a working Set 3 support, and
728 * sets it into that. Unfortunately there are keyboards that can be switched
729 * to Set 3, but don't work well in that (BTC Multimedia ...)
730 */
731
732static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra)
733{
734 struct ps2dev *ps2dev = &atkbd->ps2dev;
735 unsigned char param[2];
736
737 atkbd->extra = 0;
738/*
739 * For known special keyboards we can go ahead and set the correct set.
740 * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and
741 * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards.
742 */
743
744 if (atkbd->translated)
745 return 2;
746
747 if (atkbd->id == 0xaca1) {
748 param[0] = 3;
749 ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET);
750 return 3;
751 }
752
753 if (allow_extra) {
754 param[0] = 0x71;
755 if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) {
756 atkbd->extra = 1;
757 return 2;
758 }
759 }
760
761 if (target_set != 3)
762 return 2;
763
764 if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) {
765 atkbd->id = param[0] << 8 | param[1];
766 return 2;
767 }
768
769 param[0] = 3;
770 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
771 return 2;
772
773 param[0] = 0;
774 if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET))
775 return 2;
776
777 if (param[0] != 3) {
778 param[0] = 2;
779 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
780 return 2;
781 }
782
783 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR);
784
785 return 3;
786}
787
fc0eb28c
DT		 788static int atkbd_reset_state(struct atkbd *atkbd)
789{
790 struct ps2dev *ps2dev = &atkbd->ps2dev;
791 unsigned char param[1];
792
793/*
794 * Set the LEDs to a predefined state (all off).
795 */
796
797 param[0] = 0;
798 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
799 return -1;
800
801/*
802 * Set autorepeat to fastest possible.
803 */
804
805 param[0] = 0;
806 if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP))
807 return -1;
808
809 return 0;
810}
811
1da177e4
LT		 812static int atkbd_activate(struct atkbd *atkbd)
813{
814 struct ps2dev *ps2dev = &atkbd->ps2dev;
1da177e4
LT		 815
816/*
817 * Enable the keyboard to receive keystrokes.
818 */
819
820 if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) {
821 printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n",
822 ps2dev->serio->phys);
823 return -1;
824 }
825
826 return 0;
827}
828
829/*
830 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
831 * reboot.
832 */
833
834static void atkbd_cleanup(struct serio *serio)
835{
836 struct atkbd *atkbd = serio_get_drvdata(serio);
57f5b159
DT		 837
838 atkbd_disable(atkbd);
1da177e4
LT		 839 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_BAT);
840}
841
842
843/*
844 * atkbd_disconnect() closes and frees.
845 */
846
847static void atkbd_disconnect(struct serio *serio)
848{
849 struct atkbd *atkbd = serio_get_drvdata(serio);
850
851 atkbd_disable(atkbd);
852
853 /* make sure we don't have a command in flight */
d6d79a78 854 cancel_delayed_work_sync(&atkbd->event_work);
1da177e4 855
86255d9d 856 sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
3c42f0c3 857 input_unregister_device(atkbd->dev);
1da177e4
LT		 858 serio_close(serio);
859 serio_set_drvdata(serio, NULL);
860 kfree(atkbd);
861}
862
554101e3 863/*
39191698 864 * generate release events for the keycodes given in data
554101e3 865 */
39191698
DM		 866static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
867 const void *data)
554101e3 868{
39191698
DM		 869 const unsigned int *keys = data;
870 unsigned int i;
554101e3
GN		 871
872 if (atkbd->set == 2)
39191698
DM		 873 for (i = 0; keys[i] != -1U; i++)
874 __set_bit(keys[i], atkbd->force_release_mask);
554101e3 875}
1da177e4 876
39191698
DM		 877/*
878 * Most special keys (Fn+F?) on Dell laptops do not generate release
879 * events so we have to do it ourselves.
880 */
881static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
882 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
883};
884
5a54c011
JK		 885/*
886 * Perform fixup for HP system that doesn't generate release
887 * for its video switch
888 */
39191698
DM		 889static unsigned int atkbd_hp_forced_release_keys[] = {
890 0x94, -1U
891};
5a54c011 892
4200844b 893/*
e04126c7 894 * Samsung NC10,NC20 with Fn+F? key release not working
4200844b 895 */
39191698
DM		 896static unsigned int atkbd_samsung_forced_release_keys[] = {
897 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
898};
4200844b 899
f0a14de2
SD		 900/*
901 * Amilo Pi 3525 key release for Fn+Volume keys not working
902 */
903static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = {
904 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U
905};
906
9166d0f6
AB		 907/*
908 * Amilo Xi 3650 key release for light touch bar not working
909 */
910static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
911 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U
912};
913
032e46cb
JY		 914/*
915 * Soltech TA12 system with broken key release on volume keys and mute key
916 */
917static unsigned int atkdb_soltech_ta12_forced_release_keys[] = {
918 0xa0, 0xae, 0xb0, -1U
919};
920
000c2a35
HRK		 921/*
922 * Many notebooks don't send key release event for volume up/down
923 * keys, with key list below common among them
924 */
925static unsigned int atkbd_volume_forced_release_keys[] = {
926 0xae, 0xb0, -1U
927};
928
e5713069
JL		 929/*
930 * OQO 01+ multimedia keys (64--66) generate e0 6x upon release whereas
931 * they should be generating e4-e6 (0x80 | code).
932 */
933static unsigned int atkbd_oqo_01plus_scancode_fixup(struct atkbd *atkbd,
934 unsigned int code)
935{
936 if (atkbd->translated && atkbd->emul == 1 &&
937 (code == 0x64 || code == 0x65 || code == 0x66)) {
938 atkbd->emul = 0;
939 code |= 0x80;
940 }
941
942 return code;
943}
944
1da177e4 945/*
3c42f0c3 946 * atkbd_set_keycode_table() initializes keyboard's keycode table
1da177e4
LT		 947 * according to the selected scancode set
948 */
949
950static void atkbd_set_keycode_table(struct atkbd *atkbd)
951{
554101e3 952 unsigned int scancode;
1da177e4
LT		 953 int i, j;
954
955 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
1ba36e11 956 bitmap_zero(atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1da177e4
LT		 957
958 if (atkbd->translated) {
959 for (i = 0; i < 128; i++) {
554101e3
GN		 960 scancode = atkbd_unxlate_table[i];
961 atkbd->keycode[i] = atkbd_set2_keycode[scancode];
962 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
1da177e4
LT		 963 if (atkbd->scroll)
964 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
554101e3 965 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
1da177e4
LT		 966 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
967 }
968 } else if (atkbd->set == 3) {
969 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
970 } else {
971 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
972
973 if (atkbd->scroll)
554101e3
GN		 974 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
975 scancode = atkbd_scroll_keys[i].set2;
976 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
977 }
1da177e4 978 }
0ae051a1 979
554101e3
GN		 980/*
981 * HANGEUL and HANJA keys do not send release events so we need to
982 * generate such events ourselves
983 */
984 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
985 atkbd->keycode[scancode] = KEY_HANGEUL;
986 __set_bit(scancode, atkbd->force_release_mask);
987
988 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
989 atkbd->keycode[scancode] = KEY_HANJA;
990 __set_bit(scancode, atkbd->force_release_mask);
991
992/*
993 * Perform additional fixups
994 */
995 if (atkbd_platform_fixup)
39191698 996 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
1da177e4
LT		 997}
998
999/*
1000 * atkbd_set_device_attrs() sets up keyboard's input device structure
1001 */
1002
1003static void atkbd_set_device_attrs(struct atkbd *atkbd)
1004{
3c42f0c3 1005 struct input_dev *input_dev = atkbd->dev;
1da177e4
LT		 1006 int i;
1007
3c42f0c3 1008 if (atkbd->extra)
ea08c6fa
DT		 1009 snprintf(atkbd->name, sizeof(atkbd->name),
1010 "AT Set 2 Extra keyboard");
3c42f0c3 1011 else
ea08c6fa
DT		 1012 snprintf(atkbd->name, sizeof(atkbd->name),
1013 "AT %s Set %d keyboard",
1014 atkbd->translated ? "Translated" : "Raw", atkbd->set);
1da177e4 1015
ea08c6fa
DT		 1016 snprintf(atkbd->phys, sizeof(atkbd->phys),
1017 "%s/input0", atkbd->ps2dev.serio->phys);
1da177e4 1018
3c42f0c3
DT		 1019 input_dev->name = atkbd->name;
1020 input_dev->phys = atkbd->phys;
1021 input_dev->id.bustype = BUS_I8042;
1022 input_dev->id.vendor = 0x0001;
1023 input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
1024 input_dev->id.version = atkbd->id;
1025 input_dev->event = atkbd_event;
469ba4df 1026 input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
1da177e4 1027
b356872f
DT		 1028 input_set_drvdata(input_dev, atkbd);
1029
7b19ada2
JS		 1030 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
1031 BIT_MASK(EV_MSC);
1da177e4
LT		 1032
1033 if (atkbd->write) {
7b19ada2
JS		 1034 input_dev->evbit[0] |= BIT_MASK(EV_LED);
1035 input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
1036 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
1da177e4
LT		 1037 }
1038
1039 if (atkbd->extra)
7b19ada2
JS		 1040 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
1041 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
1042 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
1da177e4
LT		 1043
1044 if (!atkbd->softrepeat) {
3c42f0c3
DT		 1045 input_dev->rep[REP_DELAY] = 250;
1046 input_dev->rep[REP_PERIOD] = 33;
1da177e4
LT		 1047 }
1048
7b19ada2
JS		 1049 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
1050 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
1da177e4
LT		 1051
1052 if (atkbd->scroll) {
7b19ada2
JS		 1053 input_dev->evbit[0] |= BIT_MASK(EV_REL);
1054 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
1055 BIT_MASK(REL_HWHEEL);
f6d65610 1056 __set_bit(BTN_MIDDLE, input_dev->keybit);
1da177e4
LT		 1057 }
1058
3c42f0c3 1059 input_dev->keycode = atkbd->keycode;
f6d65610 1060 input_dev->keycodesize = sizeof(unsigned short);
3c42f0c3 1061 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
1da177e4 1062
1ba36e11 1063 for (i = 0; i < ATKBD_KEYMAP_SIZE; i++)
1da177e4 1064 if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL)
f6d65610 1065 __set_bit(atkbd->keycode[i], input_dev->keybit);
1da177e4
LT		 1066}
1067
1068/*
1069 * atkbd_connect() is called when the serio module finds an interface
1070 * that isn't handled yet by an appropriate device driver. We check if
1071 * there is an AT keyboard out there and if yes, we register ourselves
1072 * to the input module.
1073 */
1074
1075static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
1076{
1077 struct atkbd *atkbd;
3c42f0c3
DT		 1078 struct input_dev *dev;
1079 int err = -ENOMEM;
1da177e4 1080
3c42f0c3
DT		 1081 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
1082 dev = input_allocate_device();
1083 if (!atkbd || !dev)
2b03b60e 1084 goto fail1;
1da177e4 1085
3c42f0c3 1086 atkbd->dev = dev;
1da177e4 1087 ps2_init(&atkbd->ps2dev, serio);
da4249c9 1088 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
33d3f07a 1089 mutex_init(&atkbd->event_mutex);
1da177e4
LT		 1090
1091 switch (serio->id.type) {
1092
1093 case SERIO_8042_XL:
1094 atkbd->translated = 1;
1095 case SERIO_8042:
1096 if (serio->write)
1097 atkbd->write = 1;
1098 break;
1099 }
1100
1101 atkbd->softraw = atkbd_softraw;
1102 atkbd->softrepeat = atkbd_softrepeat;
1103 atkbd->scroll = atkbd_scroll;
1104
1da177e4
LT		 1105 if (atkbd->softrepeat)
1106 atkbd->softraw = 1;
1107
1108 serio_set_drvdata(serio, atkbd);
1109
1110 err = serio_open(serio, drv);
3c42f0c3 1111 if (err)
2b03b60e 1112 goto fail2;
1da177e4
LT		 1113
1114 if (atkbd->write) {
1115
1116 if (atkbd_probe(atkbd)) {
3c42f0c3 1117 err = -ENODEV;
2b03b60e 1118 goto fail3;
1da177e4
LT		 1119 }
1120
1121 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
fc0eb28c 1122 atkbd_reset_state(atkbd);
1da177e4
LT		 1123 atkbd_activate(atkbd);
1124
1125 } else {
1126 atkbd->set = 2;
1127 atkbd->id = 0xab00;
1128 }
1129
1da177e4
LT		 1130 atkbd_set_keycode_table(atkbd);
1131 atkbd_set_device_attrs(atkbd);
1132
2b03b60e
DT		 1133 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group);
1134 if (err)
1135 goto fail3;
1da177e4
LT		 1136
1137 atkbd_enable(atkbd);
1138
2b03b60e
DT		 1139 err = input_register_device(atkbd->dev);
1140 if (err)
1141 goto fail4;
1da177e4
LT		 1142
1143 return 0;
3c42f0c3 1144
2b03b60e
DT		 1145 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
1146 fail3: serio_close(serio);
1147 fail2: serio_set_drvdata(serio, NULL);
1148 fail1: input_free_device(dev);
3c42f0c3
DT		 1149 kfree(atkbd);
1150 return err;
1da177e4
LT		 1151}
1152
1153/*
1154 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1155 * most likely called on resume.
1156 */
1157
1158static int atkbd_reconnect(struct serio *serio)
1159{
1160 struct atkbd *atkbd = serio_get_drvdata(serio);
1161 struct serio_driver *drv = serio->drv;
1da177e4
LT		 1162
1163 if (!atkbd || !drv) {
1164 printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
1165 return -1;
1166 }
1167
1168 atkbd_disable(atkbd);
1169
1170 if (atkbd->write) {
1da177e4
LT		 1171 if (atkbd_probe(atkbd))
1172 return -1;
1173 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
1174 return -1;
1175
1176 atkbd_activate(atkbd);
d4119bda
DT		 1177
1178 /*
1179 * Restore LED state and repeat rate. While input core
1180 * will do this for us at resume time reconnect may happen
1181 * because user requested it via sysfs or simply because
1182 * keyboard was unplugged and plugged in again so we need
1183 * to do it ourselves here.
1184 */
1185 atkbd_set_leds(atkbd);
1186 if (!atkbd->softrepeat)
1187 atkbd_set_repeat_rate(atkbd);
1188
1da177e4
LT		 1189 }
1190
1191 atkbd_enable(atkbd);
1192
1193 return 0;
1194}
1195
1196static struct serio_device_id atkbd_serio_ids[] = {
1197 {
1198 .type = SERIO_8042,
1199 .proto = SERIO_ANY,
1200 .id = SERIO_ANY,
1201 .extra = SERIO_ANY,
1202 },
1203 {
1204 .type = SERIO_8042_XL,
1205 .proto = SERIO_ANY,
1206 .id = SERIO_ANY,
1207 .extra = SERIO_ANY,
1208 },
1209 {
1210 .type = SERIO_RS232,
1211 .proto = SERIO_PS2SER,
1212 .id = SERIO_ANY,
1213 .extra = SERIO_ANY,
1214 },
1215 { 0 }
1216};
1217
1218MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1219
1220static struct serio_driver atkbd_drv = {
1221 .driver = {
1222 .name = "atkbd",
1223 },
1224 .description = DRIVER_DESC,
1225 .id_table = atkbd_serio_ids,
1226 .interrupt = atkbd_interrupt,
1227 .connect = atkbd_connect,
1228 .reconnect = atkbd_reconnect,
1229 .disconnect = atkbd_disconnect,
1230 .cleanup = atkbd_cleanup,
1231};
1232
1233static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1234 ssize_t (*handler)(struct atkbd *, char *))
1235{
1236 struct serio *serio = to_serio_port(dev);
1237 int retval;
1238
1239 retval = serio_pin_driver(serio);
1240 if (retval)
1241 return retval;
1242
1243 if (serio->drv != &atkbd_drv) {
1244 retval = -ENODEV;
1245 goto out;
1246 }
1247
1248 retval = handler((struct atkbd *)serio_get_drvdata(serio), buf);
1249
1250out:
1251 serio_unpin_driver(serio);
1252 return retval;
1253}
1254
1255static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1256 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1257{
1258 struct serio *serio = to_serio_port(dev);
1259 struct atkbd *atkbd;
1260 int retval;
1261
1262 retval = serio_pin_driver(serio);
1263 if (retval)
1264 return retval;
1265
1266 if (serio->drv != &atkbd_drv) {
1267 retval = -ENODEV;
1268 goto out;
1269 }
1270
1271 atkbd = serio_get_drvdata(serio);
1272 atkbd_disable(atkbd);
1273 retval = handler(atkbd, buf, count);
1274 atkbd_enable(atkbd);
1275
1276out:
1277 serio_unpin_driver(serio);
1278 return retval;
1279}
1280
1281static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1282{
1283 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1284}
1285
1286static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1287{
2b03b60e 1288 struct input_dev *old_dev, *new_dev;
1da177e4 1289 unsigned long value;
2b03b60e
DT		 1290 int err;
1291 unsigned char old_extra, old_set;
1da177e4
LT		 1292
1293 if (!atkbd->write)
1294 return -EIO;
1295
160f1fef 1296 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1297 return -EINVAL;
1298
1299 if (atkbd->extra != value) {
3c42f0c3
DT		 1300 /*
1301 * Since device's properties will change we need to
2b03b60e
DT		 1302 * unregister old device. But allocate and register
1303 * new one first to make sure we have it.
3c42f0c3 1304 */
2b03b60e
DT		 1305 old_dev = atkbd->dev;
1306 old_extra = atkbd->extra;
1307 old_set = atkbd->set;
1308
1309 new_dev = input_allocate_device();
1310 if (!new_dev)
3c42f0c3 1311 return -ENOMEM;
2b03b60e 1312
3c42f0c3 1313 atkbd->dev = new_dev;
1da177e4 1314 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
fc0eb28c 1315 atkbd_reset_state(atkbd);
1da177e4 1316 atkbd_activate(atkbd);
2b03b60e 1317 atkbd_set_keycode_table(atkbd);
1da177e4 1318 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1319
1320 err = input_register_device(atkbd->dev);
1321 if (err) {
1322 input_free_device(new_dev);
1323
1324 atkbd->dev = old_dev;
1325 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1326 atkbd_set_keycode_table(atkbd);
1327 atkbd_set_device_attrs(atkbd);
1328
1329 return err;
1330 }
1331 input_unregister_device(old_dev);
1332
1da177e4
LT		 1333 }
1334 return count;
1335}
1336
1ba36e11
DT		 1337static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf)
1338{
1339 size_t len = bitmap_scnlistprintf(buf, PAGE_SIZE - 2,
1340 atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1341
1342 buf[len++] = '\n';
1343 buf[len] = '\0';
1344
1345 return len;
1346}
1347
1348static ssize_t atkbd_set_force_release(struct atkbd *atkbd,
1349 const char *buf, size_t count)
1350{
1351 /* 64 bytes on stack should be acceptable */
1352 DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE);
1353 int err;
1354
1355 err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE);
1356 if (err)
1357 return err;
1358
1359 memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask));
1360 return count;
1361}
1362
1363
1da177e4
LT		 1364static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1365{
1366 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1367}
1368
1369static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1370{
2b03b60e 1371 struct input_dev *old_dev, *new_dev;
1da177e4 1372 unsigned long value;
2b03b60e
DT		 1373 int err;
1374 unsigned char old_scroll;
1da177e4 1375
160f1fef 1376 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1377 return -EINVAL;
1378
1379 if (atkbd->scroll != value) {
2b03b60e
DT		 1380 old_dev = atkbd->dev;
1381 old_scroll = atkbd->scroll;
1382
1383 new_dev = input_allocate_device();
1384 if (!new_dev)
3c42f0c3 1385 return -ENOMEM;
2b03b60e 1386
3c42f0c3 1387 atkbd->dev = new_dev;
1da177e4
LT		 1388 atkbd->scroll = value;
1389 atkbd_set_keycode_table(atkbd);
1390 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1391
1392 err = input_register_device(atkbd->dev);
1393 if (err) {
1394 input_free_device(new_dev);
1395
1396 atkbd->scroll = old_scroll;
1397 atkbd->dev = old_dev;
1398 atkbd_set_keycode_table(atkbd);
1399 atkbd_set_device_attrs(atkbd);
1400
1401 return err;
1402 }
1403 input_unregister_device(old_dev);
1da177e4
LT		 1404 }
1405 return count;
1406}
1407
1408static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1409{
1410 return sprintf(buf, "%d\n", atkbd->set);
1411}
1412
1413static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1414{
2b03b60e 1415 struct input_dev *old_dev, *new_dev;
1da177e4 1416 unsigned long value;
2b03b60e
DT		 1417 int err;
1418 unsigned char old_set, old_extra;
1da177e4
LT		 1419
1420 if (!atkbd->write)
1421 return -EIO;
1422
160f1fef 1423 if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3))
1da177e4
LT		 1424 return -EINVAL;
1425
1426 if (atkbd->set != value) {
2b03b60e
DT		 1427 old_dev = atkbd->dev;
1428 old_extra = atkbd->extra;
1429 old_set = atkbd->set;
1430
1431 new_dev = input_allocate_device();
1432 if (!new_dev)
3c42f0c3 1433 return -ENOMEM;
2b03b60e 1434
3c42f0c3 1435 atkbd->dev = new_dev;
1da177e4 1436 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
d4119bda 1437 atkbd_reset_state(atkbd);
1da177e4
LT		 1438 atkbd_activate(atkbd);
1439 atkbd_set_keycode_table(atkbd);
1440 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1441
1442 err = input_register_device(atkbd->dev);
1443 if (err) {
1444 input_free_device(new_dev);
1445
1446 atkbd->dev = old_dev;
1447 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1448 atkbd_set_keycode_table(atkbd);
1449 atkbd_set_device_attrs(atkbd);
1450
1451 return err;
1452 }
1453 input_unregister_device(old_dev);
1da177e4
LT		 1454 }
1455 return count;
1456}
1457
1458static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1459{
1460 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1461}
1462
1463static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1464{
2b03b60e 1465 struct input_dev *old_dev, *new_dev;
1da177e4 1466 unsigned long value;
2b03b60e
DT		 1467 int err;
1468 unsigned char old_softrepeat, old_softraw;
1da177e4
LT		 1469
1470 if (!atkbd->write)
1471 return -EIO;
1472
160f1fef 1473 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1474 return -EINVAL;
1475
1476 if (atkbd->softrepeat != value) {
2b03b60e
DT		 1477 old_dev = atkbd->dev;
1478 old_softrepeat = atkbd->softrepeat;
1479 old_softraw = atkbd->softraw;
1480
1481 new_dev = input_allocate_device();
1482 if (!new_dev)
3c42f0c3 1483 return -ENOMEM;
2b03b60e 1484
3c42f0c3 1485 atkbd->dev = new_dev;
1da177e4
LT		 1486 atkbd->softrepeat = value;
1487 if (atkbd->softrepeat)
1488 atkbd->softraw = 1;
1489 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1490
1491 err = input_register_device(atkbd->dev);
1492 if (err) {
1493 input_free_device(new_dev);
1494
1495 atkbd->dev = old_dev;
1496 atkbd->softrepeat = old_softrepeat;
1497 atkbd->softraw = old_softraw;
1498 atkbd_set_device_attrs(atkbd);
1499
1500 return err;
1501 }
1502 input_unregister_device(old_dev);
1da177e4 1503 }
1da177e4
LT		 1504 return count;
1505}
1506
1507
1508static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1509{
1510 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1511}
1512
1513static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1514{
2b03b60e 1515 struct input_dev *old_dev, *new_dev;
1da177e4 1516 unsigned long value;
2b03b60e
DT		 1517 int err;
1518 unsigned char old_softraw;
1da177e4 1519
160f1fef 1520 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1521 return -EINVAL;
1522
1523 if (atkbd->softraw != value) {
2b03b60e
DT		 1524 old_dev = atkbd->dev;
1525 old_softraw = atkbd->softraw;
1526
1527 new_dev = input_allocate_device();
1528 if (!new_dev)
3c42f0c3 1529 return -ENOMEM;
2b03b60e 1530
3c42f0c3 1531 atkbd->dev = new_dev;
1da177e4
LT		 1532 atkbd->softraw = value;
1533 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1534
1535 err = input_register_device(atkbd->dev);
1536 if (err) {
1537 input_free_device(new_dev);
1538
1539 atkbd->dev = old_dev;
1540 atkbd->softraw = old_softraw;
1541 atkbd_set_device_attrs(atkbd);
1542
1543 return err;
1544 }
1545 input_unregister_device(old_dev);
1da177e4
LT		 1546 }
1547 return count;
1548}
1549
86255d9d
DT		 1550static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1551{
1552 return sprintf(buf, "%lu\n", atkbd->err_count);
1553}
1554
39191698 1555static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
554101e3 1556{
39191698
DM		 1557 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1558 atkbd_platform_fixup_data = id->driver_data;
1559
554101e3
GN		 1560 return 0;
1561}
1562
e5713069
JL		 1563static int __init atkbd_setup_scancode_fixup(const struct dmi_system_id *id)
1564{
1565 atkbd_platform_scancode_fixup = id->driver_data;
1566
1567 return 0;
1568}
1569
c45fc81e 1570static const struct dmi_system_id atkbd_dmi_quirk_table[] __initconst = {
554101e3 1571 {
554101e3
GN		 1572 .matches = {
1573 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
61579ba8 1574 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
554101e3 1575 },
39191698
DM		 1576 .callback = atkbd_setup_forced_release,
1577 .driver_data = atkbd_dell_laptop_forced_release_keys,
554101e3 1578 },
2a3ec326 1579 {
2a3ec326
MG		 1580 .matches = {
1581 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1582 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1583 },
39191698
DM		 1584 .callback = atkbd_setup_forced_release,
1585 .driver_data = atkbd_dell_laptop_forced_release_keys,
2a3ec326 1586 },
5a54c011 1587 {
5a54c011
JK		 1588 .matches = {
1589 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1590 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1591 },
39191698
DM		 1592 .callback = atkbd_setup_forced_release,
1593 .driver_data = atkbd_hp_forced_release_keys,
5a54c011 1594 },
181f6382 1595 {
181f6382
RL		 1596 .matches = {
1597 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1598 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1599 },
39191698 1600 .callback = atkbd_setup_forced_release,
000c2a35 1601 .driver_data = atkbd_volume_forced_release_keys,
181f6382 1602 },
2bcaa6a4 1603 {
2bcaa6a4
DA		 1604 .matches = {
1605 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1606 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"),
1607 },
1608 .callback = atkbd_setup_forced_release,
000c2a35 1609 .driver_data = atkbd_volume_forced_release_keys,
2bcaa6a4
DA		 1610 },
1611 {
2bcaa6a4
DA		 1612 .matches = {
1613 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1614 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"),
1615 },
1616 .callback = atkbd_setup_forced_release,
000c2a35 1617 .driver_data = atkbd_volume_forced_release_keys,
2bcaa6a4
DA		 1618 },
1619 {
2bcaa6a4
DA		 1620 .matches = {
1621 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1622 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"),
1623 },
1624 .callback = atkbd_setup_forced_release,
000c2a35 1625 .driver_data = atkbd_volume_forced_release_keys,
2bcaa6a4 1626 },
a8215b81 1627 {
c45fc81e 1628 /* Inventec Symphony */
a8215b81
MG		 1629 .matches = {
1630 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1631 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1632 },
39191698 1633 .callback = atkbd_setup_forced_release,
000c2a35 1634 .driver_data = atkbd_volume_forced_release_keys,
a8215b81 1635 },
4200844b 1636 {
c45fc81e 1637 /* Samsung NC10 */
4200844b
SH		 1638 .matches = {
1639 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1640 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1641 },
39191698
DM		 1642 .callback = atkbd_setup_forced_release,
1643 .driver_data = atkbd_samsung_forced_release_keys,
4200844b 1644 },
e04126c7 1645 {
c45fc81e 1646 /* Samsung NC20 */
e04126c7
BC		 1647 .matches = {
1648 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1649 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
1650 },
1651 .callback = atkbd_setup_forced_release,
1652 .driver_data = atkbd_samsung_forced_release_keys,
1653 },
157f3a3e 1654 {
c45fc81e 1655 /* Samsung SQ45S70S */
157f3a3e
DT		 1656 .matches = {
1657 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1658 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
1659 },
1660 .callback = atkbd_setup_forced_release,
1661 .driver_data = atkbd_samsung_forced_release_keys,
1662 },
adcb523e 1663 {
c45fc81e 1664 /* Fujitsu Amilo PA 1510 */
adcb523e
DM		 1665 .matches = {
1666 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1667 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1668 },
1669 .callback = atkbd_setup_forced_release,
000c2a35 1670 .driver_data = atkbd_volume_forced_release_keys,
adcb523e 1671 },
f0a14de2 1672 {
c45fc81e 1673 /* Fujitsu Amilo Pi 3525 */
f0a14de2
SD		 1674 .matches = {
1675 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1676 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"),
1677 },
1678 .callback = atkbd_setup_forced_release,
1679 .driver_data = atkbd_amilo_pi3525_forced_release_keys,
1680 },
9166d0f6 1681 {
c45fc81e 1682 /* Fujitsu Amilo Xi 3650 */
9166d0f6
AB		 1683 .matches = {
1684 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1685 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"),
1686 },
1687 .callback = atkbd_setup_forced_release,
1688 .driver_data = atkbd_amilo_xi3650_forced_release_keys,
1689 },
032e46cb 1690 {
032e46cb
JY		 1691 .matches = {
1692 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"),
1693 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"),
1694 },
1695 .callback = atkbd_setup_forced_release,
1696 .driver_data = atkdb_soltech_ta12_forced_release_keys,
1697 },
e5713069 1698 {
c45fc81e 1699 /* OQO Model 01+ */
e5713069
JL		 1700 .matches = {
1701 DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
1702 DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
1703 },
1704 .callback = atkbd_setup_scancode_fixup,
1705 .driver_data = atkbd_oqo_01plus_scancode_fixup,
1706 },
554101e3
GN		 1707 { }
1708};
1da177e4
LT		 1709
1710static int __init atkbd_init(void)
1711{
554101e3
GN		 1712 dmi_check_system(atkbd_dmi_quirk_table);
1713
153a9df0 1714 return serio_register_driver(&atkbd_drv);
1da177e4
LT		 1715}
1716
1717static void __exit atkbd_exit(void)
1718{
1719 serio_unregister_driver(&atkbd_drv);
1720}
1721
1722module_init(atkbd_init);
1723module_exit(atkbd_exit);
Linux 6.x block layer and io_uring tree(s)