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Input: atkbd - restore resetting LED state at startup
[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
GN		 231/*
232 * System-specific ketymap fixup routine
233 */
39191698
DM		 234static void (*atkbd_platform_fixup)(struct atkbd *, const void *data);
235static void *atkbd_platform_fixup_data;
554101e3 236
1da177e4
LT		 237static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
238 ssize_t (*handler)(struct atkbd *, char *));
239static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
240 ssize_t (*handler)(struct atkbd *, const char *, size_t));
241#define ATKBD_DEFINE_ATTR(_name) \
242static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
243static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \
86255d9d
DT		 244static ssize_t atkbd_do_show_##_name(struct device *d, \
245 struct device_attribute *attr, char *b) \
1da177e4
LT		 246{ \
247 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
248} \
86255d9d
DT		 249static ssize_t atkbd_do_set_##_name(struct device *d, \
250 struct device_attribute *attr, const char *b, size_t s) \
1da177e4
LT		 251{ \
252 return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \
253} \
d083e906 254static struct device_attribute atkbd_attr_##_name = \
1da177e4
LT		 255 __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name);
256
257ATKBD_DEFINE_ATTR(extra);
1ba36e11 258ATKBD_DEFINE_ATTR(force_release);
1da177e4
LT		 259ATKBD_DEFINE_ATTR(scroll);
260ATKBD_DEFINE_ATTR(set);
261ATKBD_DEFINE_ATTR(softrepeat);
262ATKBD_DEFINE_ATTR(softraw);
263
86255d9d
DT		 264#define ATKBD_DEFINE_RO_ATTR(_name) \
265static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
266static ssize_t atkbd_do_show_##_name(struct device *d, \
267 struct device_attribute *attr, char *b) \
268{ \
269 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
270} \
271static struct device_attribute atkbd_attr_##_name = \
272 __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL);
273
274ATKBD_DEFINE_RO_ATTR(err_count);
275
276static struct attribute *atkbd_attributes[] = {
277 &atkbd_attr_extra.attr,
1ba36e11 278 &atkbd_attr_force_release.attr,
86255d9d
DT		 279 &atkbd_attr_scroll.attr,
280 &atkbd_attr_set.attr,
281 &atkbd_attr_softrepeat.attr,
282 &atkbd_attr_softraw.attr,
283 &atkbd_attr_err_count.attr,
284 NULL
285};
286
287static struct attribute_group atkbd_attribute_group = {
288 .attrs = atkbd_attributes,
289};
290
0ae051a1
DT		 291static const unsigned int xl_table[] = {
292 ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK,
293 ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL,
294};
1da177e4 295
0ae051a1
DT		 296/*
297 * Checks if we should mangle the scancode to extract 'release' bit
298 * in translated mode.
299 */
300static int atkbd_need_xlate(unsigned long xl_bit, unsigned char code)
1da177e4 301{
0ae051a1
DT		 302 int i;
303
304 if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1)
305 return 0;
306
307 for (i = 0; i < ARRAY_SIZE(xl_table); i++)
308 if (code == xl_table[i])
309 return test_bit(i, &xl_bit);
310
311 return 1;
312}
313
314/*
315 * Calculates new value of xl_bit so the driver can distinguish
316 * between make/break pair of scancodes for select keys and PS/2
317 * protocol responses.
318 */
319static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code)
320{
321 int i;
322
323 for (i = 0; i < ARRAY_SIZE(xl_table); i++) {
324 if (!((code ^ xl_table[i]) & 0x7f)) {
325 if (code & 0x80)
326 __clear_bit(i, &atkbd->xl_bit);
327 else
328 __set_bit(i, &atkbd->xl_bit);
329 break;
330 }
331 }
332}
333
334/*
335 * Encode the scancode, 0xe0 prefix, and high bit into a single integer,
336 * keeping kernel 2.4 compatibility for set 2
337 */
338static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code)
339{
340 if (atkbd->set == 3) {
341 if (atkbd->emul == 1)
342 code |= 0x100;
343 } else {
344 code = (code & 0x7f) | ((code & 0x80) << 1);
345 if (atkbd->emul == 1)
346 code |= 0x80;
347 }
348
349 return code;
1da177e4
LT		 350}
351
352/*
353 * atkbd_interrupt(). Here takes place processing of data received from
354 * the keyboard into events.
355 */
356
357static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
7d12e780 358 unsigned int flags)
1da177e4
LT		 359{
360 struct atkbd *atkbd = serio_get_drvdata(serio);
0ae051a1 361 struct input_dev *dev = atkbd->dev;
1da177e4 362 unsigned int code = data;
554101e3 363 int scroll = 0, hscroll = 0, click = -1;
1da177e4 364 int value;
f6d65610 365 unsigned short keycode;
1da177e4
LT		 366
367#ifdef ATKBD_DEBUG
368 printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags);
369#endif
370
371#if !defined(__i386__) && !defined (__x86_64__)
372 if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
373 printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags);
374 serio_write(serio, ATKBD_CMD_RESEND);
375 atkbd->resend = 1;
376 goto out;
377 }
378
379 if (!flags && data == ATKBD_RET_ACK)
380 atkbd->resend = 0;
381#endif
382
383 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK))
384 if (ps2_handle_ack(&atkbd->ps2dev, data))
385 goto out;
386
387 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD))
388 if (ps2_handle_response(&atkbd->ps2dev, data))
389 goto out;
390
391 if (!atkbd->enabled)
392 goto out;
393
0ae051a1 394 input_event(dev, EV_MSC, MSC_RAW, code);
1da177e4
LT		 395
396 if (atkbd->translated) {
397
0ae051a1 398 if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) {
1da177e4
LT		 399 atkbd->release = code >> 7;
400 code &= 0x7f;
401 }
402
0ae051a1
DT		 403 if (!atkbd->emul)
404 atkbd_calculate_xl_bit(atkbd, data);
1da177e4
LT		 405 }
406
407 switch (code) {
408 case ATKBD_RET_BAT:
409 atkbd->enabled = 0;
dbc26344 410 serio_reconnect(atkbd->ps2dev.serio);
1da177e4
LT		 411 goto out;
412 case ATKBD_RET_EMUL0:
413 atkbd->emul = 1;
414 goto out;
415 case ATKBD_RET_EMUL1:
416 atkbd->emul = 2;
417 goto out;
418 case ATKBD_RET_RELEASE:
419 atkbd->release = 1;
420 goto out;
0ae051a1
DT		 421 case ATKBD_RET_ACK:
422 case ATKBD_RET_NAK:
9f7a60d6
QY		 423 if (printk_ratelimit())
424 printk(KERN_WARNING "atkbd.c: Spurious %s on %s. "
425 "Some program might be trying access hardware directly.\n",
426 data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
1da177e4 427 goto out;
1da177e4 428 case ATKBD_RET_ERR:
86255d9d
DT		 429 atkbd->err_count++;
430#ifdef ATKBD_DEBUG
1da177e4 431 printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys);
86255d9d 432#endif
1da177e4
LT		 433 goto out;
434 }
435
0ae051a1
DT		 436 code = atkbd_compat_scancode(atkbd, code);
437
438 if (atkbd->emul && --atkbd->emul)
439 goto out;
440
441 keycode = atkbd->keycode[code];
1da177e4 442
0ae051a1
DT		 443 if (keycode != ATKBD_KEY_NULL)
444 input_event(dev, EV_MSC, MSC_SCAN, code);
1da177e4 445
0ae051a1 446 switch (keycode) {
1da177e4
LT		 447 case ATKBD_KEY_NULL:
448 break;
449 case ATKBD_KEY_UNKNOWN:
0ae051a1
DT		 450 printk(KERN_WARNING
451 "atkbd.c: Unknown key %s (%s set %d, code %#x on %s).\n",
452 atkbd->release ? "released" : "pressed",
453 atkbd->translated ? "translated" : "raw",
454 atkbd->set, code, serio->phys);
455 printk(KERN_WARNING
456 "atkbd.c: Use 'setkeycodes %s%02x <keycode>' to make it known.\n",
457 code & 0x80 ? "e0" : "", code & 0x7f);
458 input_sync(dev);
1da177e4
LT		 459 break;
460 case ATKBD_SCR_1:
461 scroll = 1 - atkbd->release * 2;
462 break;
463 case ATKBD_SCR_2:
464 scroll = 2 - atkbd->release * 4;
465 break;
466 case ATKBD_SCR_4:
467 scroll = 4 - atkbd->release * 8;
468 break;
469 case ATKBD_SCR_8:
470 scroll = 8 - atkbd->release * 16;
471 break;
472 case ATKBD_SCR_CLICK:
473 click = !atkbd->release;
474 break;
475 case ATKBD_SCR_LEFT:
476 hscroll = -1;
477 break;
478 case ATKBD_SCR_RIGHT:
479 hscroll = 1;
480 break;
481 default:
0ae051a1
DT		 482 if (atkbd->release) {
483 value = 0;
484 atkbd->last = 0;
485 } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) {
486 /* Workaround Toshiba laptop multiple keypress */
487 value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2;
488 } else {
489 value = 1;
490 atkbd->last = code;
491 atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2;
1da177e4
LT		 492 }
493
f8b4c46c 494 input_event(dev, EV_KEY, keycode, value);
0ae051a1
DT		 495 input_sync(dev);
496
554101e3 497 if (value && test_bit(code, atkbd->force_release_mask)) {
0ae051a1
DT		 498 input_report_key(dev, keycode, 0);
499 input_sync(dev);
500 }
1da177e4
LT		 501 }
502
503 if (atkbd->scroll) {
1da177e4 504 if (click != -1)
0ae051a1
DT		 505 input_report_key(dev, BTN_MIDDLE, click);
506 input_report_rel(dev, REL_WHEEL, scroll);
507 input_report_rel(dev, REL_HWHEEL, hscroll);
508 input_sync(dev);
1da177e4
LT		 509 }
510
511 atkbd->release = 0;
512out:
513 return IRQ_HANDLED;
514}
515
3d0f0fa0 516static int atkbd_set_repeat_rate(struct atkbd *atkbd)
1da177e4 517{
1da177e4
LT		 518 const short period[32] =
519 { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125,
520 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 };
521 const short delay[4] =
522 { 250, 500, 750, 1000 };
0d4c8597 523
3d0f0fa0
DT		 524 struct input_dev *dev = atkbd->dev;
525 unsigned char param;
526 int i = 0, j = 0;
527
528 while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD])
529 i++;
530 dev->rep[REP_PERIOD] = period[i];
531
8ea371fb 532 while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY])
3d0f0fa0
DT		 533 j++;
534 dev->rep[REP_DELAY] = delay[j];
535
536 param = i | (j << 5);
537 return ps2_command(&atkbd->ps2dev, &param, ATKBD_CMD_SETREP);
538}
539
540static int atkbd_set_leds(struct atkbd *atkbd)
541{
0d4c8597 542 struct input_dev *dev = atkbd->dev;
1da177e4 543 unsigned char param[2];
1da177e4 544
3d0f0fa0
DT		 545 param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
546 | (test_bit(LED_NUML, dev->led) ? 2 : 0)
547 | (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
548 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
549 return -1;
0d4c8597 550
3d0f0fa0
DT		 551 if (atkbd->extra) {
552 param[0] = 0;
553 param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
554 | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
555 | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
556 | (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
557 | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
558 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS))
559 return -1;
0d4c8597
DT		 560 }
561
3d0f0fa0
DT		 562 return 0;
563}
564
565/*
566 * atkbd_event_work() is used to complete processing of events that
567 * can not be processed by input_event() which is often called from
568 * interrupt context.
569 */
570
65f27f38 571static void atkbd_event_work(struct work_struct *work)
3d0f0fa0 572{
da4249c9 573 struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work);
3d0f0fa0
DT		 574
575 mutex_lock(&atkbd->event_mutex);
576
577 if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask))
578 atkbd_set_leds(atkbd);
579
580 if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask))
581 atkbd_set_repeat_rate(atkbd);
0d4c8597 582
33d3f07a 583 mutex_unlock(&atkbd->event_mutex);
0d4c8597
DT		 584}
585
da4249c9
DT		 586/*
587 * Schedule switch for execution. We need to throttle requests,
588 * otherwise keyboard may become unresponsive.
589 */
590static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit)
591{
592 unsigned long delay = msecs_to_jiffies(50);
593
594 if (time_after(jiffies, atkbd->event_jiffies + delay))
595 delay = 0;
596
597 atkbd->event_jiffies = jiffies;
598 set_bit(event_bit, &atkbd->event_mask);
599 wmb();
600 schedule_delayed_work(&atkbd->event_work, delay);
601}
602
0d4c8597
DT		 603/*
604 * Event callback from the input module. Events that change the state of
605 * the hardware are processed here. If action can not be performed in
606 * interrupt context it is offloaded to atkbd_event_work.
607 */
608
da4249c9
DT		 609static int atkbd_event(struct input_dev *dev,
610 unsigned int type, unsigned int code, int value)
0d4c8597 611{
b356872f 612 struct atkbd *atkbd = input_get_drvdata(dev);
0d4c8597 613
1da177e4
LT		 614 if (!atkbd->write)
615 return -1;
616
617 switch (type) {
618
619 case EV_LED:
da4249c9 620 atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT);
1da177e4
LT		 621 return 0;
622
1da177e4 623 case EV_REP:
da4249c9
DT		 624 if (!atkbd->softrepeat)
625 atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT);
1da177e4
LT		 626 return 0;
627 }
628
629 return -1;
630}
631
632/*
633 * atkbd_enable() signals that interrupt handler is allowed to
634 * generate input events.
635 */
636
637static inline void atkbd_enable(struct atkbd *atkbd)
638{
639 serio_pause_rx(atkbd->ps2dev.serio);
640 atkbd->enabled = 1;
641 serio_continue_rx(atkbd->ps2dev.serio);
642}
643
644/*
645 * atkbd_disable() tells input handler that all incoming data except
646 * for ACKs and command response should be dropped.
647 */
648
649static inline void atkbd_disable(struct atkbd *atkbd)
650{
651 serio_pause_rx(atkbd->ps2dev.serio);
652 atkbd->enabled = 0;
653 serio_continue_rx(atkbd->ps2dev.serio);
654}
655
656/*
657 * atkbd_probe() probes for an AT keyboard on a serio port.
658 */
659
660static int atkbd_probe(struct atkbd *atkbd)
661{
662 struct ps2dev *ps2dev = &atkbd->ps2dev;
663 unsigned char param[2];
664
665/*
666 * Some systems, where the bit-twiddling when testing the io-lines of the
667 * controller may confuse the keyboard need a full reset of the keyboard. On
668 * these systems the BIOS also usually doesn't do it for us.
669 */
670
671 if (atkbd_reset)
672 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT))
673 printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", ps2dev->serio->phys);
674
675/*
676 * Then we check the keyboard ID. We should get 0xab83 under normal conditions.
677 * Some keyboards report different values, but the first byte is always 0xab or
678 * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
679 * should make sure we don't try to set the LEDs on it.
680 */
681
682 param[0] = param[1] = 0xa5; /* initialize with invalid values */
683 if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) {
684
685/*
686 * If the get ID command failed, we check if we can at least set the LEDs on
687 * the keyboard. This should work on every keyboard out there. It also turns
688 * the LEDs off, which we want anyway.
689 */
690 param[0] = 0;
691 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
692 return -1;
693 atkbd->id = 0xabba;
694 return 0;
695 }
696
9807879b 697 if (!ps2_is_keyboard_id(param[0]))
1da177e4
LT		 698 return -1;
699
700 atkbd->id = (param[0] << 8) | param[1];
701
702 if (atkbd->id == 0xaca1 && atkbd->translated) {
703 printk(KERN_ERR "atkbd.c: NCD terminal keyboards are only supported on non-translating\n");
704 printk(KERN_ERR "atkbd.c: controllers. Use i8042.direct=1 to disable translation.\n");
705 return -1;
706 }
707
708 return 0;
709}
710
711/*
712 * atkbd_select_set checks if a keyboard has a working Set 3 support, and
713 * sets it into that. Unfortunately there are keyboards that can be switched
714 * to Set 3, but don't work well in that (BTC Multimedia ...)
715 */
716
717static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra)
718{
719 struct ps2dev *ps2dev = &atkbd->ps2dev;
720 unsigned char param[2];
721
722 atkbd->extra = 0;
723/*
724 * For known special keyboards we can go ahead and set the correct set.
725 * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and
726 * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards.
727 */
728
729 if (atkbd->translated)
730 return 2;
731
732 if (atkbd->id == 0xaca1) {
733 param[0] = 3;
734 ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET);
735 return 3;
736 }
737
738 if (allow_extra) {
739 param[0] = 0x71;
740 if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) {
741 atkbd->extra = 1;
742 return 2;
743 }
744 }
745
746 if (target_set != 3)
747 return 2;
748
749 if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) {
750 atkbd->id = param[0] << 8 | param[1];
751 return 2;
752 }
753
754 param[0] = 3;
755 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
756 return 2;
757
758 param[0] = 0;
759 if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET))
760 return 2;
761
762 if (param[0] != 3) {
763 param[0] = 2;
764 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
765 return 2;
766 }
767
768 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR);
769
770 return 3;
771}
772
fc0eb28c
DT		 773static int atkbd_reset_state(struct atkbd *atkbd)
774{
775 struct ps2dev *ps2dev = &atkbd->ps2dev;
776 unsigned char param[1];
777
778/*
779 * Set the LEDs to a predefined state (all off).
780 */
781
782 param[0] = 0;
783 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
784 return -1;
785
786/*
787 * Set autorepeat to fastest possible.
788 */
789
790 param[0] = 0;
791 if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP))
792 return -1;
793
794 return 0;
795}
796
1da177e4
LT		 797static int atkbd_activate(struct atkbd *atkbd)
798{
799 struct ps2dev *ps2dev = &atkbd->ps2dev;
1da177e4
LT		 800
801/*
802 * Enable the keyboard to receive keystrokes.
803 */
804
805 if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) {
806 printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n",
807 ps2dev->serio->phys);
808 return -1;
809 }
810
811 return 0;
812}
813
814/*
815 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
816 * reboot.
817 */
818
819static void atkbd_cleanup(struct serio *serio)
820{
821 struct atkbd *atkbd = serio_get_drvdata(serio);
57f5b159
DT		 822
823 atkbd_disable(atkbd);
1da177e4
LT		 824 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_BAT);
825}
826
827
828/*
829 * atkbd_disconnect() closes and frees.
830 */
831
832static void atkbd_disconnect(struct serio *serio)
833{
834 struct atkbd *atkbd = serio_get_drvdata(serio);
835
836 atkbd_disable(atkbd);
837
838 /* make sure we don't have a command in flight */
d6d79a78 839 cancel_delayed_work_sync(&atkbd->event_work);
1da177e4 840
86255d9d 841 sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
3c42f0c3 842 input_unregister_device(atkbd->dev);
1da177e4
LT		 843 serio_close(serio);
844 serio_set_drvdata(serio, NULL);
845 kfree(atkbd);
846}
847
554101e3 848/*
39191698 849 * generate release events for the keycodes given in data
554101e3 850 */
39191698
DM		 851static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
852 const void *data)
554101e3 853{
39191698
DM		 854 const unsigned int *keys = data;
855 unsigned int i;
554101e3
GN		 856
857 if (atkbd->set == 2)
39191698
DM		 858 for (i = 0; keys[i] != -1U; i++)
859 __set_bit(keys[i], atkbd->force_release_mask);
554101e3 860}
1da177e4 861
39191698
DM		 862/*
863 * Most special keys (Fn+F?) on Dell laptops do not generate release
864 * events so we have to do it ourselves.
865 */
866static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
867 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
868};
869
5a54c011
JK		 870/*
871 * Perform fixup for HP system that doesn't generate release
872 * for its video switch
873 */
39191698
DM		 874static unsigned int atkbd_hp_forced_release_keys[] = {
875 0x94, -1U
876};
5a54c011 877
a8215b81
MG		 878/*
879 * Inventec system with broken key release on volume keys
880 */
39191698
DM		 881static unsigned int atkbd_inventec_forced_release_keys[] = {
882 0xae, 0xb0, -1U
883};
a8215b81 884
181f6382
RL		 885/*
886 * Perform fixup for HP Pavilion ZV6100 laptop that doesn't generate release
887 * for its volume buttons
888 */
39191698
DM		 889static unsigned int atkbd_hp_zv6100_forced_release_keys[] = {
890 0xae, 0xb0, -1U
891};
181f6382 892
2bcaa6a4
DA		 893/*
894 * Perform fixup for HP (Compaq) Presario R4000 R4100 R4200 that don't generate
895 * release for their volume buttons
896 */
897static unsigned int atkbd_hp_r4000_forced_release_keys[] = {
898 0xae, 0xb0, -1U
899};
900
4200844b 901/*
e04126c7 902 * Samsung NC10,NC20 with Fn+F? key release not working
4200844b 903 */
39191698
DM		 904static unsigned int atkbd_samsung_forced_release_keys[] = {
905 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
906};
4200844b 907
adcb523e
DM		 908/*
909 * The volume up and volume down special keys on a Fujitsu Amilo PA 1510 laptop
910 * do not generate release events so we have to do it ourselves.
911 */
912static unsigned int atkbd_amilo_pa1510_forced_release_keys[] = {
913 0xb0, 0xae, -1U
914};
915
f0a14de2
SD		 916/*
917 * Amilo Pi 3525 key release for Fn+Volume keys not working
918 */
919static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = {
920 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U
921};
922
9166d0f6
AB		 923/*
924 * Amilo Xi 3650 key release for light touch bar not working
925 */
926static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
927 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U
928};
929
032e46cb
JY		 930/*
931 * Soltech TA12 system with broken key release on volume keys and mute key
932 */
933static unsigned int atkdb_soltech_ta12_forced_release_keys[] = {
934 0xa0, 0xae, 0xb0, -1U
935};
936
1da177e4 937/*
3c42f0c3 938 * atkbd_set_keycode_table() initializes keyboard's keycode table
1da177e4
LT		 939 * according to the selected scancode set
940 */
941
942static void atkbd_set_keycode_table(struct atkbd *atkbd)
943{
554101e3 944 unsigned int scancode;
1da177e4
LT		 945 int i, j;
946
947 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
1ba36e11 948 bitmap_zero(atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1da177e4
LT		 949
950 if (atkbd->translated) {
951 for (i = 0; i < 128; i++) {
554101e3
GN		 952 scancode = atkbd_unxlate_table[i];
953 atkbd->keycode[i] = atkbd_set2_keycode[scancode];
954 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
1da177e4
LT		 955 if (atkbd->scroll)
956 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
554101e3 957 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
1da177e4
LT		 958 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
959 }
960 } else if (atkbd->set == 3) {
961 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
962 } else {
963 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
964
965 if (atkbd->scroll)
554101e3
GN		 966 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
967 scancode = atkbd_scroll_keys[i].set2;
968 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
969 }
1da177e4 970 }
0ae051a1 971
554101e3
GN		 972/*
973 * HANGEUL and HANJA keys do not send release events so we need to
974 * generate such events ourselves
975 */
976 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
977 atkbd->keycode[scancode] = KEY_HANGEUL;
978 __set_bit(scancode, atkbd->force_release_mask);
979
980 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
981 atkbd->keycode[scancode] = KEY_HANJA;
982 __set_bit(scancode, atkbd->force_release_mask);
983
984/*
985 * Perform additional fixups
986 */
987 if (atkbd_platform_fixup)
39191698 988 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
1da177e4
LT		 989}
990
991/*
992 * atkbd_set_device_attrs() sets up keyboard's input device structure
993 */
994
995static void atkbd_set_device_attrs(struct atkbd *atkbd)
996{
3c42f0c3 997 struct input_dev *input_dev = atkbd->dev;
1da177e4
LT		 998 int i;
999
3c42f0c3 1000 if (atkbd->extra)
ea08c6fa
DT		 1001 snprintf(atkbd->name, sizeof(atkbd->name),
1002 "AT Set 2 Extra keyboard");
3c42f0c3 1003 else
ea08c6fa
DT		 1004 snprintf(atkbd->name, sizeof(atkbd->name),
1005 "AT %s Set %d keyboard",
1006 atkbd->translated ? "Translated" : "Raw", atkbd->set);
1da177e4 1007
ea08c6fa
DT		 1008 snprintf(atkbd->phys, sizeof(atkbd->phys),
1009 "%s/input0", atkbd->ps2dev.serio->phys);
1da177e4 1010
3c42f0c3
DT		 1011 input_dev->name = atkbd->name;
1012 input_dev->phys = atkbd->phys;
1013 input_dev->id.bustype = BUS_I8042;
1014 input_dev->id.vendor = 0x0001;
1015 input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
1016 input_dev->id.version = atkbd->id;
1017 input_dev->event = atkbd_event;
469ba4df 1018 input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
1da177e4 1019
b356872f
DT		 1020 input_set_drvdata(input_dev, atkbd);
1021
7b19ada2
JS		 1022 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
1023 BIT_MASK(EV_MSC);
1da177e4
LT		 1024
1025 if (atkbd->write) {
7b19ada2
JS		 1026 input_dev->evbit[0] |= BIT_MASK(EV_LED);
1027 input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
1028 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
1da177e4
LT		 1029 }
1030
1031 if (atkbd->extra)
7b19ada2
JS		 1032 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
1033 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
1034 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
1da177e4
LT		 1035
1036 if (!atkbd->softrepeat) {
3c42f0c3
DT		 1037 input_dev->rep[REP_DELAY] = 250;
1038 input_dev->rep[REP_PERIOD] = 33;
1da177e4
LT		 1039 }
1040
7b19ada2
JS		 1041 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
1042 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
1da177e4
LT		 1043
1044 if (atkbd->scroll) {
7b19ada2
JS		 1045 input_dev->evbit[0] |= BIT_MASK(EV_REL);
1046 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
1047 BIT_MASK(REL_HWHEEL);
f6d65610 1048 __set_bit(BTN_MIDDLE, input_dev->keybit);
1da177e4
LT		 1049 }
1050
3c42f0c3 1051 input_dev->keycode = atkbd->keycode;
f6d65610 1052 input_dev->keycodesize = sizeof(unsigned short);
3c42f0c3 1053 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
1da177e4 1054
1ba36e11 1055 for (i = 0; i < ATKBD_KEYMAP_SIZE; i++)
1da177e4 1056 if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL)
f6d65610 1057 __set_bit(atkbd->keycode[i], input_dev->keybit);
1da177e4
LT		 1058}
1059
1060/*
1061 * atkbd_connect() is called when the serio module finds an interface
1062 * that isn't handled yet by an appropriate device driver. We check if
1063 * there is an AT keyboard out there and if yes, we register ourselves
1064 * to the input module.
1065 */
1066
1067static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
1068{
1069 struct atkbd *atkbd;
3c42f0c3
DT		 1070 struct input_dev *dev;
1071 int err = -ENOMEM;
1da177e4 1072
3c42f0c3
DT		 1073 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
1074 dev = input_allocate_device();
1075 if (!atkbd || !dev)
2b03b60e 1076 goto fail1;
1da177e4 1077
3c42f0c3 1078 atkbd->dev = dev;
1da177e4 1079 ps2_init(&atkbd->ps2dev, serio);
da4249c9 1080 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
33d3f07a 1081 mutex_init(&atkbd->event_mutex);
1da177e4
LT		 1082
1083 switch (serio->id.type) {
1084
1085 case SERIO_8042_XL:
1086 atkbd->translated = 1;
1087 case SERIO_8042:
1088 if (serio->write)
1089 atkbd->write = 1;
1090 break;
1091 }
1092
1093 atkbd->softraw = atkbd_softraw;
1094 atkbd->softrepeat = atkbd_softrepeat;
1095 atkbd->scroll = atkbd_scroll;
1096
1da177e4
LT		 1097 if (atkbd->softrepeat)
1098 atkbd->softraw = 1;
1099
1100 serio_set_drvdata(serio, atkbd);
1101
1102 err = serio_open(serio, drv);
3c42f0c3 1103 if (err)
2b03b60e 1104 goto fail2;
1da177e4
LT		 1105
1106 if (atkbd->write) {
1107
1108 if (atkbd_probe(atkbd)) {
3c42f0c3 1109 err = -ENODEV;
2b03b60e 1110 goto fail3;
1da177e4
LT		 1111 }
1112
1113 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
fc0eb28c 1114 atkbd_reset_state(atkbd);
1da177e4
LT		 1115 atkbd_activate(atkbd);
1116
1117 } else {
1118 atkbd->set = 2;
1119 atkbd->id = 0xab00;
1120 }
1121
1da177e4
LT		 1122 atkbd_set_keycode_table(atkbd);
1123 atkbd_set_device_attrs(atkbd);
1124
2b03b60e
DT		 1125 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group);
1126 if (err)
1127 goto fail3;
1da177e4
LT		 1128
1129 atkbd_enable(atkbd);
1130
2b03b60e
DT		 1131 err = input_register_device(atkbd->dev);
1132 if (err)
1133 goto fail4;
1da177e4
LT		 1134
1135 return 0;
3c42f0c3 1136
2b03b60e
DT		 1137 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
1138 fail3: serio_close(serio);
1139 fail2: serio_set_drvdata(serio, NULL);
1140 fail1: input_free_device(dev);
3c42f0c3
DT		 1141 kfree(atkbd);
1142 return err;
1da177e4
LT		 1143}
1144
1145/*
1146 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1147 * most likely called on resume.
1148 */
1149
1150static int atkbd_reconnect(struct serio *serio)
1151{
1152 struct atkbd *atkbd = serio_get_drvdata(serio);
1153 struct serio_driver *drv = serio->drv;
1da177e4
LT		 1154
1155 if (!atkbd || !drv) {
1156 printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
1157 return -1;
1158 }
1159
1160 atkbd_disable(atkbd);
1161
1162 if (atkbd->write) {
1da177e4
LT		 1163 if (atkbd_probe(atkbd))
1164 return -1;
1165 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
1166 return -1;
1167
1168 atkbd_activate(atkbd);
1da177e4
LT		 1169 }
1170
1171 atkbd_enable(atkbd);
1172
1173 return 0;
1174}
1175
1176static struct serio_device_id atkbd_serio_ids[] = {
1177 {
1178 .type = SERIO_8042,
1179 .proto = SERIO_ANY,
1180 .id = SERIO_ANY,
1181 .extra = SERIO_ANY,
1182 },
1183 {
1184 .type = SERIO_8042_XL,
1185 .proto = SERIO_ANY,
1186 .id = SERIO_ANY,
1187 .extra = SERIO_ANY,
1188 },
1189 {
1190 .type = SERIO_RS232,
1191 .proto = SERIO_PS2SER,
1192 .id = SERIO_ANY,
1193 .extra = SERIO_ANY,
1194 },
1195 { 0 }
1196};
1197
1198MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1199
1200static struct serio_driver atkbd_drv = {
1201 .driver = {
1202 .name = "atkbd",
1203 },
1204 .description = DRIVER_DESC,
1205 .id_table = atkbd_serio_ids,
1206 .interrupt = atkbd_interrupt,
1207 .connect = atkbd_connect,
1208 .reconnect = atkbd_reconnect,
1209 .disconnect = atkbd_disconnect,
1210 .cleanup = atkbd_cleanup,
1211};
1212
1213static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1214 ssize_t (*handler)(struct atkbd *, char *))
1215{
1216 struct serio *serio = to_serio_port(dev);
1217 int retval;
1218
1219 retval = serio_pin_driver(serio);
1220 if (retval)
1221 return retval;
1222
1223 if (serio->drv != &atkbd_drv) {
1224 retval = -ENODEV;
1225 goto out;
1226 }
1227
1228 retval = handler((struct atkbd *)serio_get_drvdata(serio), buf);
1229
1230out:
1231 serio_unpin_driver(serio);
1232 return retval;
1233}
1234
1235static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1236 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1237{
1238 struct serio *serio = to_serio_port(dev);
1239 struct atkbd *atkbd;
1240 int retval;
1241
1242 retval = serio_pin_driver(serio);
1243 if (retval)
1244 return retval;
1245
1246 if (serio->drv != &atkbd_drv) {
1247 retval = -ENODEV;
1248 goto out;
1249 }
1250
1251 atkbd = serio_get_drvdata(serio);
1252 atkbd_disable(atkbd);
1253 retval = handler(atkbd, buf, count);
1254 atkbd_enable(atkbd);
1255
1256out:
1257 serio_unpin_driver(serio);
1258 return retval;
1259}
1260
1261static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1262{
1263 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1264}
1265
1266static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1267{
2b03b60e 1268 struct input_dev *old_dev, *new_dev;
1da177e4 1269 unsigned long value;
2b03b60e
DT		 1270 int err;
1271 unsigned char old_extra, old_set;
1da177e4
LT		 1272
1273 if (!atkbd->write)
1274 return -EIO;
1275
160f1fef 1276 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1277 return -EINVAL;
1278
1279 if (atkbd->extra != value) {
3c42f0c3
DT		 1280 /*
1281 * Since device's properties will change we need to
2b03b60e
DT		 1282 * unregister old device. But allocate and register
1283 * new one first to make sure we have it.
3c42f0c3 1284 */
2b03b60e
DT		 1285 old_dev = atkbd->dev;
1286 old_extra = atkbd->extra;
1287 old_set = atkbd->set;
1288
1289 new_dev = input_allocate_device();
1290 if (!new_dev)
3c42f0c3 1291 return -ENOMEM;
2b03b60e 1292
3c42f0c3 1293 atkbd->dev = new_dev;
1da177e4 1294 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
fc0eb28c 1295 atkbd_reset_state(atkbd);
1da177e4 1296 atkbd_activate(atkbd);
2b03b60e 1297 atkbd_set_keycode_table(atkbd);
1da177e4 1298 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1299
1300 err = input_register_device(atkbd->dev);
1301 if (err) {
1302 input_free_device(new_dev);
1303
1304 atkbd->dev = old_dev;
1305 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1306 atkbd_set_keycode_table(atkbd);
1307 atkbd_set_device_attrs(atkbd);
1308
1309 return err;
1310 }
1311 input_unregister_device(old_dev);
1312
1da177e4
LT		 1313 }
1314 return count;
1315}
1316
1ba36e11
DT		 1317static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf)
1318{
1319 size_t len = bitmap_scnlistprintf(buf, PAGE_SIZE - 2,
1320 atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1321
1322 buf[len++] = '\n';
1323 buf[len] = '\0';
1324
1325 return len;
1326}
1327
1328static ssize_t atkbd_set_force_release(struct atkbd *atkbd,
1329 const char *buf, size_t count)
1330{
1331 /* 64 bytes on stack should be acceptable */
1332 DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE);
1333 int err;
1334
1335 err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE);
1336 if (err)
1337 return err;
1338
1339 memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask));
1340 return count;
1341}
1342
1343
1da177e4
LT		 1344static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1345{
1346 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1347}
1348
1349static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1350{
2b03b60e 1351 struct input_dev *old_dev, *new_dev;
1da177e4 1352 unsigned long value;
2b03b60e
DT		 1353 int err;
1354 unsigned char old_scroll;
1da177e4 1355
160f1fef 1356 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1357 return -EINVAL;
1358
1359 if (atkbd->scroll != value) {
2b03b60e
DT		 1360 old_dev = atkbd->dev;
1361 old_scroll = atkbd->scroll;
1362
1363 new_dev = input_allocate_device();
1364 if (!new_dev)
3c42f0c3 1365 return -ENOMEM;
2b03b60e 1366
3c42f0c3 1367 atkbd->dev = new_dev;
1da177e4
LT		 1368 atkbd->scroll = value;
1369 atkbd_set_keycode_table(atkbd);
1370 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1371
1372 err = input_register_device(atkbd->dev);
1373 if (err) {
1374 input_free_device(new_dev);
1375
1376 atkbd->scroll = old_scroll;
1377 atkbd->dev = old_dev;
1378 atkbd_set_keycode_table(atkbd);
1379 atkbd_set_device_attrs(atkbd);
1380
1381 return err;
1382 }
1383 input_unregister_device(old_dev);
1da177e4
LT		 1384 }
1385 return count;
1386}
1387
1388static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1389{
1390 return sprintf(buf, "%d\n", atkbd->set);
1391}
1392
1393static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1394{
2b03b60e 1395 struct input_dev *old_dev, *new_dev;
1da177e4 1396 unsigned long value;
2b03b60e
DT		 1397 int err;
1398 unsigned char old_set, old_extra;
1da177e4
LT		 1399
1400 if (!atkbd->write)
1401 return -EIO;
1402
160f1fef 1403 if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3))
1da177e4
LT		 1404 return -EINVAL;
1405
1406 if (atkbd->set != value) {
2b03b60e
DT		 1407 old_dev = atkbd->dev;
1408 old_extra = atkbd->extra;
1409 old_set = atkbd->set;
1410
1411 new_dev = input_allocate_device();
1412 if (!new_dev)
3c42f0c3 1413 return -ENOMEM;
2b03b60e 1414
3c42f0c3 1415 atkbd->dev = new_dev;
1da177e4
LT		 1416 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
1417 atkbd_activate(atkbd);
1418 atkbd_set_keycode_table(atkbd);
1419 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1420
1421 err = input_register_device(atkbd->dev);
1422 if (err) {
1423 input_free_device(new_dev);
1424
1425 atkbd->dev = old_dev;
1426 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1427 atkbd_set_keycode_table(atkbd);
1428 atkbd_set_device_attrs(atkbd);
1429
1430 return err;
1431 }
1432 input_unregister_device(old_dev);
1da177e4
LT		 1433 }
1434 return count;
1435}
1436
1437static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1438{
1439 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1440}
1441
1442static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1443{
2b03b60e 1444 struct input_dev *old_dev, *new_dev;
1da177e4 1445 unsigned long value;
2b03b60e
DT		 1446 int err;
1447 unsigned char old_softrepeat, old_softraw;
1da177e4
LT		 1448
1449 if (!atkbd->write)
1450 return -EIO;
1451
160f1fef 1452 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1453 return -EINVAL;
1454
1455 if (atkbd->softrepeat != value) {
2b03b60e
DT		 1456 old_dev = atkbd->dev;
1457 old_softrepeat = atkbd->softrepeat;
1458 old_softraw = atkbd->softraw;
1459
1460 new_dev = input_allocate_device();
1461 if (!new_dev)
3c42f0c3 1462 return -ENOMEM;
2b03b60e 1463
3c42f0c3 1464 atkbd->dev = new_dev;
1da177e4
LT		 1465 atkbd->softrepeat = value;
1466 if (atkbd->softrepeat)
1467 atkbd->softraw = 1;
1468 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1469
1470 err = input_register_device(atkbd->dev);
1471 if (err) {
1472 input_free_device(new_dev);
1473
1474 atkbd->dev = old_dev;
1475 atkbd->softrepeat = old_softrepeat;
1476 atkbd->softraw = old_softraw;
1477 atkbd_set_device_attrs(atkbd);
1478
1479 return err;
1480 }
1481 input_unregister_device(old_dev);
1da177e4 1482 }
1da177e4
LT		 1483 return count;
1484}
1485
1486
1487static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1488{
1489 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1490}
1491
1492static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1493{
2b03b60e 1494 struct input_dev *old_dev, *new_dev;
1da177e4 1495 unsigned long value;
2b03b60e
DT		 1496 int err;
1497 unsigned char old_softraw;
1da177e4 1498
160f1fef 1499 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1500 return -EINVAL;
1501
1502 if (atkbd->softraw != value) {
2b03b60e
DT		 1503 old_dev = atkbd->dev;
1504 old_softraw = atkbd->softraw;
1505
1506 new_dev = input_allocate_device();
1507 if (!new_dev)
3c42f0c3 1508 return -ENOMEM;
2b03b60e 1509
3c42f0c3 1510 atkbd->dev = new_dev;
1da177e4
LT		 1511 atkbd->softraw = value;
1512 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1513
1514 err = input_register_device(atkbd->dev);
1515 if (err) {
1516 input_free_device(new_dev);
1517
1518 atkbd->dev = old_dev;
1519 atkbd->softraw = old_softraw;
1520 atkbd_set_device_attrs(atkbd);
1521
1522 return err;
1523 }
1524 input_unregister_device(old_dev);
1da177e4
LT		 1525 }
1526 return count;
1527}
1528
86255d9d
DT		 1529static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1530{
1531 return sprintf(buf, "%lu\n", atkbd->err_count);
1532}
1533
39191698 1534static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
554101e3 1535{
39191698
DM		 1536 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1537 atkbd_platform_fixup_data = id->driver_data;
1538
554101e3
GN		 1539 return 0;
1540}
1541
1542static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
1543 {
61579ba8 1544 .ident = "Dell Laptop",
554101e3
GN		 1545 .matches = {
1546 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
61579ba8 1547 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
554101e3 1548 },
39191698
DM		 1549 .callback = atkbd_setup_forced_release,
1550 .driver_data = atkbd_dell_laptop_forced_release_keys,
554101e3 1551 },
2a3ec326
MG		 1552 {
1553 .ident = "Dell Laptop",
1554 .matches = {
1555 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1556 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1557 },
39191698
DM		 1558 .callback = atkbd_setup_forced_release,
1559 .driver_data = atkbd_dell_laptop_forced_release_keys,
2a3ec326 1560 },
5a54c011
JK		 1561 {
1562 .ident = "HP 2133",
1563 .matches = {
1564 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1565 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1566 },
39191698
DM		 1567 .callback = atkbd_setup_forced_release,
1568 .driver_data = atkbd_hp_forced_release_keys,
5a54c011 1569 },
181f6382
RL		 1570 {
1571 .ident = "HP Pavilion ZV6100",
1572 .matches = {
1573 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1574 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1575 },
39191698
DM		 1576 .callback = atkbd_setup_forced_release,
1577 .driver_data = atkbd_hp_zv6100_forced_release_keys,
181f6382 1578 },
2bcaa6a4
DA		 1579 {
1580 .ident = "HP Presario R4000",
1581 .matches = {
1582 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1583 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"),
1584 },
1585 .callback = atkbd_setup_forced_release,
1586 .driver_data = atkbd_hp_r4000_forced_release_keys,
1587 },
1588 {
1589 .ident = "HP Presario R4100",
1590 .matches = {
1591 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1592 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"),
1593 },
1594 .callback = atkbd_setup_forced_release,
1595 .driver_data = atkbd_hp_r4000_forced_release_keys,
1596 },
1597 {
1598 .ident = "HP Presario R4200",
1599 .matches = {
1600 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1601 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"),
1602 },
1603 .callback = atkbd_setup_forced_release,
1604 .driver_data = atkbd_hp_r4000_forced_release_keys,
1605 },
a8215b81
MG		 1606 {
1607 .ident = "Inventec Symphony",
1608 .matches = {
1609 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1610 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1611 },
39191698
DM		 1612 .callback = atkbd_setup_forced_release,
1613 .driver_data = atkbd_inventec_forced_release_keys,
a8215b81 1614 },
4200844b
SH		 1615 {
1616 .ident = "Samsung NC10",
1617 .matches = {
1618 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1619 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1620 },
39191698
DM		 1621 .callback = atkbd_setup_forced_release,
1622 .driver_data = atkbd_samsung_forced_release_keys,
4200844b 1623 },
e04126c7
BC		 1624 {
1625 .ident = "Samsung NC20",
1626 .matches = {
1627 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1628 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
1629 },
1630 .callback = atkbd_setup_forced_release,
1631 .driver_data = atkbd_samsung_forced_release_keys,
1632 },
157f3a3e
DT		 1633 {
1634 .ident = "Samsung SQ45S70S",
1635 .matches = {
1636 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1637 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
1638 },
1639 .callback = atkbd_setup_forced_release,
1640 .driver_data = atkbd_samsung_forced_release_keys,
1641 },
adcb523e
DM		 1642 {
1643 .ident = "Fujitsu Amilo PA 1510",
1644 .matches = {
1645 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1646 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1647 },
1648 .callback = atkbd_setup_forced_release,
1649 .driver_data = atkbd_amilo_pa1510_forced_release_keys,
1650 },
f0a14de2
SD		 1651 {
1652 .ident = "Fujitsu Amilo Pi 3525",
1653 .matches = {
1654 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1655 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"),
1656 },
1657 .callback = atkbd_setup_forced_release,
1658 .driver_data = atkbd_amilo_pi3525_forced_release_keys,
1659 },
9166d0f6
AB		 1660 {
1661 .ident = "Fujitsu Amilo Xi 3650",
1662 .matches = {
1663 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1664 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"),
1665 },
1666 .callback = atkbd_setup_forced_release,
1667 .driver_data = atkbd_amilo_xi3650_forced_release_keys,
1668 },
032e46cb
JY		 1669 {
1670 .ident = "Soltech Corporation TA12",
1671 .matches = {
1672 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"),
1673 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"),
1674 },
1675 .callback = atkbd_setup_forced_release,
1676 .driver_data = atkdb_soltech_ta12_forced_release_keys,
1677 },
554101e3
GN		 1678 { }
1679};
1da177e4
LT		 1680
1681static int __init atkbd_init(void)
1682{
554101e3
GN		 1683 dmi_check_system(atkbd_dmi_quirk_table);
1684
153a9df0 1685 return serio_register_driver(&atkbd_drv);
1da177e4
LT		 1686}
1687
1688static void __exit atkbd_exit(void)
1689{
1690 serio_unregister_driver(&atkbd_drv);
1691}
1692
1693module_init(atkbd_init);
1694module_exit(atkbd_exit);
Linux 6.x block layer and io_uring tree(s)