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[mirror_ubuntu-hirsute-kernel.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
773static int atkbd_activate(struct atkbd *atkbd)
774{
775 struct ps2dev *ps2dev = &atkbd->ps2dev;
1da177e4
LT		 776
777/*
778 * Enable the keyboard to receive keystrokes.
779 */
780
781 if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) {
782 printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n",
783 ps2dev->serio->phys);
784 return -1;
785 }
786
787 return 0;
788}
789
790/*
791 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
792 * reboot.
793 */
794
795static void atkbd_cleanup(struct serio *serio)
796{
797 struct atkbd *atkbd = serio_get_drvdata(serio);
57f5b159
DT		 798
799 atkbd_disable(atkbd);
1da177e4
LT		 800 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_BAT);
801}
802
803
804/*
805 * atkbd_disconnect() closes and frees.
806 */
807
808static void atkbd_disconnect(struct serio *serio)
809{
810 struct atkbd *atkbd = serio_get_drvdata(serio);
811
812 atkbd_disable(atkbd);
813
814 /* make sure we don't have a command in flight */
d6d79a78 815 cancel_delayed_work_sync(&atkbd->event_work);
1da177e4 816
86255d9d 817 sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
3c42f0c3 818 input_unregister_device(atkbd->dev);
1da177e4
LT		 819 serio_close(serio);
820 serio_set_drvdata(serio, NULL);
821 kfree(atkbd);
822}
823
554101e3 824/*
39191698 825 * generate release events for the keycodes given in data
554101e3 826 */
39191698
DM		 827static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
828 const void *data)
554101e3 829{
39191698
DM		 830 const unsigned int *keys = data;
831 unsigned int i;
554101e3
GN		 832
833 if (atkbd->set == 2)
39191698
DM		 834 for (i = 0; keys[i] != -1U; i++)
835 __set_bit(keys[i], atkbd->force_release_mask);
554101e3 836}
1da177e4 837
39191698
DM		 838/*
839 * Most special keys (Fn+F?) on Dell laptops do not generate release
840 * events so we have to do it ourselves.
841 */
842static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
843 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
844};
845
5a54c011
JK		 846/*
847 * Perform fixup for HP system that doesn't generate release
848 * for its video switch
849 */
39191698
DM		 850static unsigned int atkbd_hp_forced_release_keys[] = {
851 0x94, -1U
852};
5a54c011 853
a8215b81
MG		 854/*
855 * Inventec system with broken key release on volume keys
856 */
39191698
DM		 857static unsigned int atkbd_inventec_forced_release_keys[] = {
858 0xae, 0xb0, -1U
859};
a8215b81 860
181f6382
RL		 861/*
862 * Perform fixup for HP Pavilion ZV6100 laptop that doesn't generate release
863 * for its volume buttons
864 */
39191698
DM		 865static unsigned int atkbd_hp_zv6100_forced_release_keys[] = {
866 0xae, 0xb0, -1U
867};
181f6382 868
2bcaa6a4
DA		 869/*
870 * Perform fixup for HP (Compaq) Presario R4000 R4100 R4200 that don't generate
871 * release for their volume buttons
872 */
873static unsigned int atkbd_hp_r4000_forced_release_keys[] = {
874 0xae, 0xb0, -1U
875};
876
4200844b 877/*
e04126c7 878 * Samsung NC10,NC20 with Fn+F? key release not working
4200844b 879 */
39191698
DM		 880static unsigned int atkbd_samsung_forced_release_keys[] = {
881 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
882};
4200844b 883
adcb523e
DM		 884/*
885 * The volume up and volume down special keys on a Fujitsu Amilo PA 1510 laptop
886 * do not generate release events so we have to do it ourselves.
887 */
888static unsigned int atkbd_amilo_pa1510_forced_release_keys[] = {
889 0xb0, 0xae, -1U
890};
891
f0a14de2
SD		 892/*
893 * Amilo Pi 3525 key release for Fn+Volume keys not working
894 */
895static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = {
896 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U
897};
898
9166d0f6
AB		 899/*
900 * Amilo Xi 3650 key release for light touch bar not working
901 */
902static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
903 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U
904};
905
032e46cb
JY		 906/*
907 * Soltech TA12 system with broken key release on volume keys and mute key
908 */
909static unsigned int atkdb_soltech_ta12_forced_release_keys[] = {
910 0xa0, 0xae, 0xb0, -1U
911};
912
1da177e4 913/*
3c42f0c3 914 * atkbd_set_keycode_table() initializes keyboard's keycode table
1da177e4
LT		 915 * according to the selected scancode set
916 */
917
918static void atkbd_set_keycode_table(struct atkbd *atkbd)
919{
554101e3 920 unsigned int scancode;
1da177e4
LT		 921 int i, j;
922
923 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
1ba36e11 924 bitmap_zero(atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1da177e4
LT		 925
926 if (atkbd->translated) {
927 for (i = 0; i < 128; i++) {
554101e3
GN		 928 scancode = atkbd_unxlate_table[i];
929 atkbd->keycode[i] = atkbd_set2_keycode[scancode];
930 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
1da177e4
LT		 931 if (atkbd->scroll)
932 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
554101e3 933 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
1da177e4
LT		 934 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
935 }
936 } else if (atkbd->set == 3) {
937 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
938 } else {
939 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
940
941 if (atkbd->scroll)
554101e3
GN		 942 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
943 scancode = atkbd_scroll_keys[i].set2;
944 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
945 }
1da177e4 946 }
0ae051a1 947
554101e3
GN		 948/*
949 * HANGEUL and HANJA keys do not send release events so we need to
950 * generate such events ourselves
951 */
952 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
953 atkbd->keycode[scancode] = KEY_HANGEUL;
954 __set_bit(scancode, atkbd->force_release_mask);
955
956 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
957 atkbd->keycode[scancode] = KEY_HANJA;
958 __set_bit(scancode, atkbd->force_release_mask);
959
960/*
961 * Perform additional fixups
962 */
963 if (atkbd_platform_fixup)
39191698 964 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
1da177e4
LT		 965}
966
967/*
968 * atkbd_set_device_attrs() sets up keyboard's input device structure
969 */
970
971static void atkbd_set_device_attrs(struct atkbd *atkbd)
972{
3c42f0c3 973 struct input_dev *input_dev = atkbd->dev;
1da177e4
LT		 974 int i;
975
3c42f0c3 976 if (atkbd->extra)
ea08c6fa
DT		 977 snprintf(atkbd->name, sizeof(atkbd->name),
978 "AT Set 2 Extra keyboard");
3c42f0c3 979 else
ea08c6fa
DT		 980 snprintf(atkbd->name, sizeof(atkbd->name),
981 "AT %s Set %d keyboard",
982 atkbd->translated ? "Translated" : "Raw", atkbd->set);
1da177e4 983
ea08c6fa
DT		 984 snprintf(atkbd->phys, sizeof(atkbd->phys),
985 "%s/input0", atkbd->ps2dev.serio->phys);
1da177e4 986
3c42f0c3
DT		 987 input_dev->name = atkbd->name;
988 input_dev->phys = atkbd->phys;
989 input_dev->id.bustype = BUS_I8042;
990 input_dev->id.vendor = 0x0001;
991 input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
992 input_dev->id.version = atkbd->id;
993 input_dev->event = atkbd_event;
469ba4df 994 input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
1da177e4 995
b356872f
DT		 996 input_set_drvdata(input_dev, atkbd);
997
7b19ada2
JS		 998 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
999 BIT_MASK(EV_MSC);
1da177e4
LT		 1000
1001 if (atkbd->write) {
7b19ada2
JS		 1002 input_dev->evbit[0] |= BIT_MASK(EV_LED);
1003 input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
1004 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
1da177e4
LT		 1005 }
1006
1007 if (atkbd->extra)
7b19ada2
JS		 1008 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
1009 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
1010 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
1da177e4
LT		 1011
1012 if (!atkbd->softrepeat) {
3c42f0c3
DT		 1013 input_dev->rep[REP_DELAY] = 250;
1014 input_dev->rep[REP_PERIOD] = 33;
1da177e4
LT		 1015 }
1016
7b19ada2
JS		 1017 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
1018 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
1da177e4
LT		 1019
1020 if (atkbd->scroll) {
7b19ada2
JS		 1021 input_dev->evbit[0] |= BIT_MASK(EV_REL);
1022 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
1023 BIT_MASK(REL_HWHEEL);
f6d65610 1024 __set_bit(BTN_MIDDLE, input_dev->keybit);
1da177e4
LT		 1025 }
1026
3c42f0c3 1027 input_dev->keycode = atkbd->keycode;
f6d65610 1028 input_dev->keycodesize = sizeof(unsigned short);
3c42f0c3 1029 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
1da177e4 1030
1ba36e11 1031 for (i = 0; i < ATKBD_KEYMAP_SIZE; i++)
1da177e4 1032 if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL)
f6d65610 1033 __set_bit(atkbd->keycode[i], input_dev->keybit);
1da177e4
LT		 1034}
1035
1036/*
1037 * atkbd_connect() is called when the serio module finds an interface
1038 * that isn't handled yet by an appropriate device driver. We check if
1039 * there is an AT keyboard out there and if yes, we register ourselves
1040 * to the input module.
1041 */
1042
1043static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
1044{
1045 struct atkbd *atkbd;
3c42f0c3
DT		 1046 struct input_dev *dev;
1047 int err = -ENOMEM;
1da177e4 1048
3c42f0c3
DT		 1049 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
1050 dev = input_allocate_device();
1051 if (!atkbd || !dev)
2b03b60e 1052 goto fail1;
1da177e4 1053
3c42f0c3 1054 atkbd->dev = dev;
1da177e4 1055 ps2_init(&atkbd->ps2dev, serio);
da4249c9 1056 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
33d3f07a 1057 mutex_init(&atkbd->event_mutex);
1da177e4
LT		 1058
1059 switch (serio->id.type) {
1060
1061 case SERIO_8042_XL:
1062 atkbd->translated = 1;
1063 case SERIO_8042:
1064 if (serio->write)
1065 atkbd->write = 1;
1066 break;
1067 }
1068
1069 atkbd->softraw = atkbd_softraw;
1070 atkbd->softrepeat = atkbd_softrepeat;
1071 atkbd->scroll = atkbd_scroll;
1072
1da177e4
LT		 1073 if (atkbd->softrepeat)
1074 atkbd->softraw = 1;
1075
1076 serio_set_drvdata(serio, atkbd);
1077
1078 err = serio_open(serio, drv);
3c42f0c3 1079 if (err)
2b03b60e 1080 goto fail2;
1da177e4
LT		 1081
1082 if (atkbd->write) {
1083
1084 if (atkbd_probe(atkbd)) {
3c42f0c3 1085 err = -ENODEV;
2b03b60e 1086 goto fail3;
1da177e4
LT		 1087 }
1088
1089 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
1090 atkbd_activate(atkbd);
1091
1092 } else {
1093 atkbd->set = 2;
1094 atkbd->id = 0xab00;
1095 }
1096
1da177e4
LT		 1097 atkbd_set_keycode_table(atkbd);
1098 atkbd_set_device_attrs(atkbd);
1099
2b03b60e
DT		 1100 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group);
1101 if (err)
1102 goto fail3;
1da177e4
LT		 1103
1104 atkbd_enable(atkbd);
1105
2b03b60e
DT		 1106 err = input_register_device(atkbd->dev);
1107 if (err)
1108 goto fail4;
1da177e4
LT		 1109
1110 return 0;
3c42f0c3 1111
2b03b60e
DT		 1112 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
1113 fail3: serio_close(serio);
1114 fail2: serio_set_drvdata(serio, NULL);
1115 fail1: input_free_device(dev);
3c42f0c3
DT		 1116 kfree(atkbd);
1117 return err;
1da177e4
LT		 1118}
1119
1120/*
1121 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1122 * most likely called on resume.
1123 */
1124
1125static int atkbd_reconnect(struct serio *serio)
1126{
1127 struct atkbd *atkbd = serio_get_drvdata(serio);
1128 struct serio_driver *drv = serio->drv;
1da177e4
LT		 1129
1130 if (!atkbd || !drv) {
1131 printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
1132 return -1;
1133 }
1134
1135 atkbd_disable(atkbd);
1136
1137 if (atkbd->write) {
1da177e4
LT		 1138 if (atkbd_probe(atkbd))
1139 return -1;
1140 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
1141 return -1;
1142
1143 atkbd_activate(atkbd);
1da177e4
LT		 1144 }
1145
1146 atkbd_enable(atkbd);
1147
1148 return 0;
1149}
1150
1151static struct serio_device_id atkbd_serio_ids[] = {
1152 {
1153 .type = SERIO_8042,
1154 .proto = SERIO_ANY,
1155 .id = SERIO_ANY,
1156 .extra = SERIO_ANY,
1157 },
1158 {
1159 .type = SERIO_8042_XL,
1160 .proto = SERIO_ANY,
1161 .id = SERIO_ANY,
1162 .extra = SERIO_ANY,
1163 },
1164 {
1165 .type = SERIO_RS232,
1166 .proto = SERIO_PS2SER,
1167 .id = SERIO_ANY,
1168 .extra = SERIO_ANY,
1169 },
1170 { 0 }
1171};
1172
1173MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1174
1175static struct serio_driver atkbd_drv = {
1176 .driver = {
1177 .name = "atkbd",
1178 },
1179 .description = DRIVER_DESC,
1180 .id_table = atkbd_serio_ids,
1181 .interrupt = atkbd_interrupt,
1182 .connect = atkbd_connect,
1183 .reconnect = atkbd_reconnect,
1184 .disconnect = atkbd_disconnect,
1185 .cleanup = atkbd_cleanup,
1186};
1187
1188static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1189 ssize_t (*handler)(struct atkbd *, char *))
1190{
1191 struct serio *serio = to_serio_port(dev);
1192 int retval;
1193
1194 retval = serio_pin_driver(serio);
1195 if (retval)
1196 return retval;
1197
1198 if (serio->drv != &atkbd_drv) {
1199 retval = -ENODEV;
1200 goto out;
1201 }
1202
1203 retval = handler((struct atkbd *)serio_get_drvdata(serio), buf);
1204
1205out:
1206 serio_unpin_driver(serio);
1207 return retval;
1208}
1209
1210static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1211 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1212{
1213 struct serio *serio = to_serio_port(dev);
1214 struct atkbd *atkbd;
1215 int retval;
1216
1217 retval = serio_pin_driver(serio);
1218 if (retval)
1219 return retval;
1220
1221 if (serio->drv != &atkbd_drv) {
1222 retval = -ENODEV;
1223 goto out;
1224 }
1225
1226 atkbd = serio_get_drvdata(serio);
1227 atkbd_disable(atkbd);
1228 retval = handler(atkbd, buf, count);
1229 atkbd_enable(atkbd);
1230
1231out:
1232 serio_unpin_driver(serio);
1233 return retval;
1234}
1235
1236static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1237{
1238 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1239}
1240
1241static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1242{
2b03b60e 1243 struct input_dev *old_dev, *new_dev;
1da177e4 1244 unsigned long value;
2b03b60e
DT		 1245 int err;
1246 unsigned char old_extra, old_set;
1da177e4
LT		 1247
1248 if (!atkbd->write)
1249 return -EIO;
1250
160f1fef 1251 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1252 return -EINVAL;
1253
1254 if (atkbd->extra != value) {
3c42f0c3
DT		 1255 /*
1256 * Since device's properties will change we need to
2b03b60e
DT		 1257 * unregister old device. But allocate and register
1258 * new one first to make sure we have it.
3c42f0c3 1259 */
2b03b60e
DT		 1260 old_dev = atkbd->dev;
1261 old_extra = atkbd->extra;
1262 old_set = atkbd->set;
1263
1264 new_dev = input_allocate_device();
1265 if (!new_dev)
3c42f0c3 1266 return -ENOMEM;
2b03b60e 1267
3c42f0c3 1268 atkbd->dev = new_dev;
1da177e4
LT		 1269 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
1270 atkbd_activate(atkbd);
2b03b60e 1271 atkbd_set_keycode_table(atkbd);
1da177e4 1272 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1273
1274 err = input_register_device(atkbd->dev);
1275 if (err) {
1276 input_free_device(new_dev);
1277
1278 atkbd->dev = old_dev;
1279 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1280 atkbd_set_keycode_table(atkbd);
1281 atkbd_set_device_attrs(atkbd);
1282
1283 return err;
1284 }
1285 input_unregister_device(old_dev);
1286
1da177e4
LT		 1287 }
1288 return count;
1289}
1290
1ba36e11
DT		 1291static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf)
1292{
1293 size_t len = bitmap_scnlistprintf(buf, PAGE_SIZE - 2,
1294 atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1295
1296 buf[len++] = '\n';
1297 buf[len] = '\0';
1298
1299 return len;
1300}
1301
1302static ssize_t atkbd_set_force_release(struct atkbd *atkbd,
1303 const char *buf, size_t count)
1304{
1305 /* 64 bytes on stack should be acceptable */
1306 DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE);
1307 int err;
1308
1309 err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE);
1310 if (err)
1311 return err;
1312
1313 memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask));
1314 return count;
1315}
1316
1317
1da177e4
LT		 1318static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1319{
1320 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1321}
1322
1323static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1324{
2b03b60e 1325 struct input_dev *old_dev, *new_dev;
1da177e4 1326 unsigned long value;
2b03b60e
DT		 1327 int err;
1328 unsigned char old_scroll;
1da177e4 1329
160f1fef 1330 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1331 return -EINVAL;
1332
1333 if (atkbd->scroll != value) {
2b03b60e
DT		 1334 old_dev = atkbd->dev;
1335 old_scroll = atkbd->scroll;
1336
1337 new_dev = input_allocate_device();
1338 if (!new_dev)
3c42f0c3 1339 return -ENOMEM;
2b03b60e 1340
3c42f0c3 1341 atkbd->dev = new_dev;
1da177e4
LT		 1342 atkbd->scroll = value;
1343 atkbd_set_keycode_table(atkbd);
1344 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1345
1346 err = input_register_device(atkbd->dev);
1347 if (err) {
1348 input_free_device(new_dev);
1349
1350 atkbd->scroll = old_scroll;
1351 atkbd->dev = old_dev;
1352 atkbd_set_keycode_table(atkbd);
1353 atkbd_set_device_attrs(atkbd);
1354
1355 return err;
1356 }
1357 input_unregister_device(old_dev);
1da177e4
LT		 1358 }
1359 return count;
1360}
1361
1362static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1363{
1364 return sprintf(buf, "%d\n", atkbd->set);
1365}
1366
1367static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1368{
2b03b60e 1369 struct input_dev *old_dev, *new_dev;
1da177e4 1370 unsigned long value;
2b03b60e
DT		 1371 int err;
1372 unsigned char old_set, old_extra;
1da177e4
LT		 1373
1374 if (!atkbd->write)
1375 return -EIO;
1376
160f1fef 1377 if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3))
1da177e4
LT		 1378 return -EINVAL;
1379
1380 if (atkbd->set != value) {
2b03b60e
DT		 1381 old_dev = atkbd->dev;
1382 old_extra = atkbd->extra;
1383 old_set = atkbd->set;
1384
1385 new_dev = input_allocate_device();
1386 if (!new_dev)
3c42f0c3 1387 return -ENOMEM;
2b03b60e 1388
3c42f0c3 1389 atkbd->dev = new_dev;
1da177e4
LT		 1390 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
1391 atkbd_activate(atkbd);
1392 atkbd_set_keycode_table(atkbd);
1393 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1394
1395 err = input_register_device(atkbd->dev);
1396 if (err) {
1397 input_free_device(new_dev);
1398
1399 atkbd->dev = old_dev;
1400 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1401 atkbd_set_keycode_table(atkbd);
1402 atkbd_set_device_attrs(atkbd);
1403
1404 return err;
1405 }
1406 input_unregister_device(old_dev);
1da177e4
LT		 1407 }
1408 return count;
1409}
1410
1411static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1412{
1413 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1414}
1415
1416static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1417{
2b03b60e 1418 struct input_dev *old_dev, *new_dev;
1da177e4 1419 unsigned long value;
2b03b60e
DT		 1420 int err;
1421 unsigned char old_softrepeat, old_softraw;
1da177e4
LT		 1422
1423 if (!atkbd->write)
1424 return -EIO;
1425
160f1fef 1426 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1427 return -EINVAL;
1428
1429 if (atkbd->softrepeat != value) {
2b03b60e
DT		 1430 old_dev = atkbd->dev;
1431 old_softrepeat = atkbd->softrepeat;
1432 old_softraw = atkbd->softraw;
1433
1434 new_dev = input_allocate_device();
1435 if (!new_dev)
3c42f0c3 1436 return -ENOMEM;
2b03b60e 1437
3c42f0c3 1438 atkbd->dev = new_dev;
1da177e4
LT		 1439 atkbd->softrepeat = value;
1440 if (atkbd->softrepeat)
1441 atkbd->softraw = 1;
1442 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1443
1444 err = input_register_device(atkbd->dev);
1445 if (err) {
1446 input_free_device(new_dev);
1447
1448 atkbd->dev = old_dev;
1449 atkbd->softrepeat = old_softrepeat;
1450 atkbd->softraw = old_softraw;
1451 atkbd_set_device_attrs(atkbd);
1452
1453 return err;
1454 }
1455 input_unregister_device(old_dev);
1da177e4 1456 }
1da177e4
LT		 1457 return count;
1458}
1459
1460
1461static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1462{
1463 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1464}
1465
1466static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1467{
2b03b60e 1468 struct input_dev *old_dev, *new_dev;
1da177e4 1469 unsigned long value;
2b03b60e
DT		 1470 int err;
1471 unsigned char old_softraw;
1da177e4 1472
160f1fef 1473 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1474 return -EINVAL;
1475
1476 if (atkbd->softraw != value) {
2b03b60e
DT		 1477 old_dev = atkbd->dev;
1478 old_softraw = atkbd->softraw;
1479
1480 new_dev = input_allocate_device();
1481 if (!new_dev)
3c42f0c3 1482 return -ENOMEM;
2b03b60e 1483
3c42f0c3 1484 atkbd->dev = new_dev;
1da177e4
LT		 1485 atkbd->softraw = value;
1486 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1487
1488 err = input_register_device(atkbd->dev);
1489 if (err) {
1490 input_free_device(new_dev);
1491
1492 atkbd->dev = old_dev;
1493 atkbd->softraw = old_softraw;
1494 atkbd_set_device_attrs(atkbd);
1495
1496 return err;
1497 }
1498 input_unregister_device(old_dev);
1da177e4
LT		 1499 }
1500 return count;
1501}
1502
86255d9d
DT		 1503static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1504{
1505 return sprintf(buf, "%lu\n", atkbd->err_count);
1506}
1507
39191698 1508static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
554101e3 1509{
39191698
DM		 1510 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1511 atkbd_platform_fixup_data = id->driver_data;
1512
554101e3
GN		 1513 return 0;
1514}
1515
1516static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
1517 {
61579ba8 1518 .ident = "Dell Laptop",
554101e3
GN		 1519 .matches = {
1520 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
61579ba8 1521 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
554101e3 1522 },
39191698
DM		 1523 .callback = atkbd_setup_forced_release,
1524 .driver_data = atkbd_dell_laptop_forced_release_keys,
554101e3 1525 },
2a3ec326
MG		 1526 {
1527 .ident = "Dell Laptop",
1528 .matches = {
1529 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1530 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1531 },
39191698
DM		 1532 .callback = atkbd_setup_forced_release,
1533 .driver_data = atkbd_dell_laptop_forced_release_keys,
2a3ec326 1534 },
5a54c011
JK		 1535 {
1536 .ident = "HP 2133",
1537 .matches = {
1538 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1539 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1540 },
39191698
DM		 1541 .callback = atkbd_setup_forced_release,
1542 .driver_data = atkbd_hp_forced_release_keys,
5a54c011 1543 },
181f6382
RL		 1544 {
1545 .ident = "HP Pavilion ZV6100",
1546 .matches = {
1547 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1548 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1549 },
39191698
DM		 1550 .callback = atkbd_setup_forced_release,
1551 .driver_data = atkbd_hp_zv6100_forced_release_keys,
181f6382 1552 },
2bcaa6a4
DA		 1553 {
1554 .ident = "HP Presario R4000",
1555 .matches = {
1556 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1557 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"),
1558 },
1559 .callback = atkbd_setup_forced_release,
1560 .driver_data = atkbd_hp_r4000_forced_release_keys,
1561 },
1562 {
1563 .ident = "HP Presario R4100",
1564 .matches = {
1565 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1566 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"),
1567 },
1568 .callback = atkbd_setup_forced_release,
1569 .driver_data = atkbd_hp_r4000_forced_release_keys,
1570 },
1571 {
1572 .ident = "HP Presario R4200",
1573 .matches = {
1574 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1575 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"),
1576 },
1577 .callback = atkbd_setup_forced_release,
1578 .driver_data = atkbd_hp_r4000_forced_release_keys,
1579 },
a8215b81
MG		 1580 {
1581 .ident = "Inventec Symphony",
1582 .matches = {
1583 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1584 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1585 },
39191698
DM		 1586 .callback = atkbd_setup_forced_release,
1587 .driver_data = atkbd_inventec_forced_release_keys,
a8215b81 1588 },
4200844b
SH		 1589 {
1590 .ident = "Samsung NC10",
1591 .matches = {
1592 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1593 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1594 },
39191698
DM		 1595 .callback = atkbd_setup_forced_release,
1596 .driver_data = atkbd_samsung_forced_release_keys,
4200844b 1597 },
e04126c7
BC		 1598 {
1599 .ident = "Samsung NC20",
1600 .matches = {
1601 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1602 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
1603 },
1604 .callback = atkbd_setup_forced_release,
1605 .driver_data = atkbd_samsung_forced_release_keys,
1606 },
157f3a3e
DT		 1607 {
1608 .ident = "Samsung SQ45S70S",
1609 .matches = {
1610 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1611 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
1612 },
1613 .callback = atkbd_setup_forced_release,
1614 .driver_data = atkbd_samsung_forced_release_keys,
1615 },
adcb523e
DM		 1616 {
1617 .ident = "Fujitsu Amilo PA 1510",
1618 .matches = {
1619 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1620 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1621 },
1622 .callback = atkbd_setup_forced_release,
1623 .driver_data = atkbd_amilo_pa1510_forced_release_keys,
1624 },
f0a14de2
SD		 1625 {
1626 .ident = "Fujitsu Amilo Pi 3525",
1627 .matches = {
1628 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1629 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"),
1630 },
1631 .callback = atkbd_setup_forced_release,
1632 .driver_data = atkbd_amilo_pi3525_forced_release_keys,
1633 },
9166d0f6
AB		 1634 {
1635 .ident = "Fujitsu Amilo Xi 3650",
1636 .matches = {
1637 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1638 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"),
1639 },
1640 .callback = atkbd_setup_forced_release,
1641 .driver_data = atkbd_amilo_xi3650_forced_release_keys,
1642 },
032e46cb
JY		 1643 {
1644 .ident = "Soltech Corporation TA12",
1645 .matches = {
1646 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"),
1647 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"),
1648 },
1649 .callback = atkbd_setup_forced_release,
1650 .driver_data = atkdb_soltech_ta12_forced_release_keys,
1651 },
554101e3
GN		 1652 { }
1653};
1da177e4
LT		 1654
1655static int __init atkbd_init(void)
1656{
554101e3
GN		 1657 dmi_check_system(atkbd_dmi_quirk_table);
1658
153a9df0 1659 return serio_register_driver(&atkbd_drv);
1da177e4
LT		 1660}
1661
1662static void __exit atkbd_exit(void)
1663{
1664 serio_unregister_driver(&atkbd_drv);
1665}
1666
1667module_init(atkbd_init);
1668module_exit(atkbd_exit);
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