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Input: serio - fix potential deadlock when unbinding drivers
[net-next-2.6.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
4a299bf5
DT		 137#define ATKBD_CMD_RESET_DIS 0x00f5 /* Reset to defaults and disable */
138#define ATKBD_CMD_RESET_DEF 0x00f6 /* Reset to defaults */
1da177e4
LT		 139#define ATKBD_CMD_SETALL_MBR 0x00fa
140#define ATKBD_CMD_RESET_BAT 0x02ff
141#define ATKBD_CMD_RESEND 0x00fe
142#define ATKBD_CMD_EX_ENABLE 0x10ea
143#define ATKBD_CMD_EX_SETLEDS 0x20eb
144#define ATKBD_CMD_OK_GETID 0x02e8
145
146#define ATKBD_RET_ACK 0xfa
147#define ATKBD_RET_NAK 0xfe
148#define ATKBD_RET_BAT 0xaa
149#define ATKBD_RET_EMUL0 0xe0
150#define ATKBD_RET_EMUL1 0xe1
151#define ATKBD_RET_RELEASE 0xf0
0ae051a1
DT		 152#define ATKBD_RET_HANJA 0xf1
153#define ATKBD_RET_HANGEUL 0xf2
1da177e4
LT		 154#define ATKBD_RET_ERR 0xff
155
156#define ATKBD_KEY_UNKNOWN 0
157#define ATKBD_KEY_NULL 255
158
159#define ATKBD_SCR_1 254
160#define ATKBD_SCR_2 253
161#define ATKBD_SCR_4 252
162#define ATKBD_SCR_8 251
163#define ATKBD_SCR_CLICK 250
164#define ATKBD_SCR_LEFT 249
165#define ATKBD_SCR_RIGHT 248
166
f6d65610 167#define ATKBD_SPECIAL ATKBD_SCR_RIGHT
1da177e4 168
0d4c8597
DT		 169#define ATKBD_LED_EVENT_BIT 0
170#define ATKBD_REP_EVENT_BIT 1
171
0ae051a1
DT		 172#define ATKBD_XL_ERR 0x01
173#define ATKBD_XL_BAT 0x02
174#define ATKBD_XL_ACK 0x04
175#define ATKBD_XL_NAK 0x08
176#define ATKBD_XL_HANGEUL 0x10
177#define ATKBD_XL_HANJA 0x20
178
f6d65610 179static const struct {
1da177e4
LT		 180 unsigned char keycode;
181 unsigned char set2;
182} atkbd_scroll_keys[] = {
183 { ATKBD_SCR_1, 0xc5 },
5212dd58
VP		 184 { ATKBD_SCR_2, 0x9d },
185 { ATKBD_SCR_4, 0xa4 },
186 { ATKBD_SCR_8, 0x9b },
1da177e4
LT		 187 { ATKBD_SCR_CLICK, 0xe0 },
188 { ATKBD_SCR_LEFT, 0xcb },
189 { ATKBD_SCR_RIGHT, 0xd2 },
190};
191
192/*
193 * The atkbd control structure
194 */
195
196struct atkbd {
197
3c42f0c3
DT		 198 struct ps2dev ps2dev;
199 struct input_dev *dev;
1da177e4
LT		 200
201 /* Written only during init */
202 char name[64];
203 char phys[32];
1da177e4
LT		 204
205 unsigned short id;
1ba36e11
DT		 206 unsigned short keycode[ATKBD_KEYMAP_SIZE];
207 DECLARE_BITMAP(force_release_mask, ATKBD_KEYMAP_SIZE);
1da177e4
LT		 208 unsigned char set;
209 unsigned char translated;
210 unsigned char extra;
211 unsigned char write;
212 unsigned char softrepeat;
213 unsigned char softraw;
214 unsigned char scroll;
215 unsigned char enabled;
216
217 /* Accessed only from interrupt */
218 unsigned char emul;
219 unsigned char resend;
220 unsigned char release;
0ae051a1 221 unsigned long xl_bit;
1da177e4
LT		 222 unsigned int last;
223 unsigned long time;
86255d9d 224 unsigned long err_count;
0d4c8597 225
da4249c9
DT		 226 struct delayed_work event_work;
227 unsigned long event_jiffies;
0d4c8597 228 unsigned long event_mask;
59b01513
EB		 229
230 /* Serializes reconnect(), attr->set() and event work */
231 struct mutex mutex;
1da177e4
LT		 232};
233
554101e3 234/*
36726dd9 235 * System-specific keymap fixup routine
554101e3 236 */
39191698
DM		 237static void (*atkbd_platform_fixup)(struct atkbd *, const void *data);
238static void *atkbd_platform_fixup_data;
e5713069 239static unsigned int (*atkbd_platform_scancode_fixup)(struct atkbd *, unsigned int);
554101e3 240
1da177e4
LT		 241static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
242 ssize_t (*handler)(struct atkbd *, char *));
243static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
244 ssize_t (*handler)(struct atkbd *, const char *, size_t));
245#define ATKBD_DEFINE_ATTR(_name) \
246static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
247static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \
86255d9d
DT		 248static ssize_t atkbd_do_show_##_name(struct device *d, \
249 struct device_attribute *attr, char *b) \
1da177e4
LT		 250{ \
251 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
252} \
86255d9d
DT		 253static ssize_t atkbd_do_set_##_name(struct device *d, \
254 struct device_attribute *attr, const char *b, size_t s) \
1da177e4
LT		 255{ \
256 return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \
257} \
d083e906 258static struct device_attribute atkbd_attr_##_name = \
1da177e4
LT		 259 __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name);
260
261ATKBD_DEFINE_ATTR(extra);
1ba36e11 262ATKBD_DEFINE_ATTR(force_release);
1da177e4
LT		 263ATKBD_DEFINE_ATTR(scroll);
264ATKBD_DEFINE_ATTR(set);
265ATKBD_DEFINE_ATTR(softrepeat);
266ATKBD_DEFINE_ATTR(softraw);
267
86255d9d
DT		 268#define ATKBD_DEFINE_RO_ATTR(_name) \
269static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
270static ssize_t atkbd_do_show_##_name(struct device *d, \
271 struct device_attribute *attr, char *b) \
272{ \
273 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
274} \
275static struct device_attribute atkbd_attr_##_name = \
276 __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL);
277
278ATKBD_DEFINE_RO_ATTR(err_count);
279
280static struct attribute *atkbd_attributes[] = {
281 &atkbd_attr_extra.attr,
1ba36e11 282 &atkbd_attr_force_release.attr,
86255d9d
DT		 283 &atkbd_attr_scroll.attr,
284 &atkbd_attr_set.attr,
285 &atkbd_attr_softrepeat.attr,
286 &atkbd_attr_softraw.attr,
287 &atkbd_attr_err_count.attr,
288 NULL
289};
290
291static struct attribute_group atkbd_attribute_group = {
292 .attrs = atkbd_attributes,
293};
294
0ae051a1
DT		 295static const unsigned int xl_table[] = {
296 ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK,
297 ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL,
298};
1da177e4 299
0ae051a1
DT		 300/*
301 * Checks if we should mangle the scancode to extract 'release' bit
302 * in translated mode.
303 */
304static int atkbd_need_xlate(unsigned long xl_bit, unsigned char code)
1da177e4 305{
0ae051a1
DT		 306 int i;
307
308 if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1)
309 return 0;
310
311 for (i = 0; i < ARRAY_SIZE(xl_table); i++)
312 if (code == xl_table[i])
313 return test_bit(i, &xl_bit);
314
315 return 1;
316}
317
318/*
319 * Calculates new value of xl_bit so the driver can distinguish
320 * between make/break pair of scancodes for select keys and PS/2
321 * protocol responses.
322 */
323static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code)
324{
325 int i;
326
327 for (i = 0; i < ARRAY_SIZE(xl_table); i++) {
328 if (!((code ^ xl_table[i]) & 0x7f)) {
329 if (code & 0x80)
330 __clear_bit(i, &atkbd->xl_bit);
331 else
332 __set_bit(i, &atkbd->xl_bit);
333 break;
334 }
335 }
336}
337
338/*
339 * Encode the scancode, 0xe0 prefix, and high bit into a single integer,
340 * keeping kernel 2.4 compatibility for set 2
341 */
342static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code)
343{
344 if (atkbd->set == 3) {
345 if (atkbd->emul == 1)
346 code |= 0x100;
347 } else {
348 code = (code & 0x7f) | ((code & 0x80) << 1);
349 if (atkbd->emul == 1)
350 code |= 0x80;
351 }
352
353 return code;
1da177e4
LT		 354}
355
356/*
357 * atkbd_interrupt(). Here takes place processing of data received from
358 * the keyboard into events.
359 */
360
361static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
7d12e780 362 unsigned int flags)
1da177e4
LT		 363{
364 struct atkbd *atkbd = serio_get_drvdata(serio);
0ae051a1 365 struct input_dev *dev = atkbd->dev;
1da177e4 366 unsigned int code = data;
554101e3 367 int scroll = 0, hscroll = 0, click = -1;
1da177e4 368 int value;
f6d65610 369 unsigned short keycode;
1da177e4
LT		 370
371#ifdef ATKBD_DEBUG
372 printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags);
373#endif
374
375#if !defined(__i386__) && !defined (__x86_64__)
376 if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
377 printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags);
378 serio_write(serio, ATKBD_CMD_RESEND);
379 atkbd->resend = 1;
380 goto out;
381 }
382
383 if (!flags && data == ATKBD_RET_ACK)
384 atkbd->resend = 0;
385#endif
386
387 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK))
388 if (ps2_handle_ack(&atkbd->ps2dev, data))
389 goto out;
390
391 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD))
392 if (ps2_handle_response(&atkbd->ps2dev, data))
393 goto out;
394
395 if (!atkbd->enabled)
396 goto out;
397
0ae051a1 398 input_event(dev, EV_MSC, MSC_RAW, code);
1da177e4 399
e5713069
JL		 400 if (atkbd_platform_scancode_fixup)
401 code = atkbd_platform_scancode_fixup(atkbd, code);
402
1da177e4
LT		 403 if (atkbd->translated) {
404
0ae051a1 405 if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) {
1da177e4
LT		 406 atkbd->release = code >> 7;
407 code &= 0x7f;
408 }
409
0ae051a1
DT		 410 if (!atkbd->emul)
411 atkbd_calculate_xl_bit(atkbd, data);
1da177e4
LT		 412 }
413
414 switch (code) {
415 case ATKBD_RET_BAT:
416 atkbd->enabled = 0;
dbc26344 417 serio_reconnect(atkbd->ps2dev.serio);
1da177e4
LT		 418 goto out;
419 case ATKBD_RET_EMUL0:
420 atkbd->emul = 1;
421 goto out;
422 case ATKBD_RET_EMUL1:
423 atkbd->emul = 2;
424 goto out;
425 case ATKBD_RET_RELEASE:
426 atkbd->release = 1;
427 goto out;
0ae051a1
DT		 428 case ATKBD_RET_ACK:
429 case ATKBD_RET_NAK:
9f7a60d6
QY		 430 if (printk_ratelimit())
431 printk(KERN_WARNING "atkbd.c: Spurious %s on %s. "
432 "Some program might be trying access hardware directly.\n",
433 data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
1da177e4 434 goto out;
1da177e4 435 case ATKBD_RET_ERR:
86255d9d
DT		 436 atkbd->err_count++;
437#ifdef ATKBD_DEBUG
1da177e4 438 printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys);
86255d9d 439#endif
1da177e4
LT		 440 goto out;
441 }
442
0ae051a1
DT		 443 code = atkbd_compat_scancode(atkbd, code);
444
445 if (atkbd->emul && --atkbd->emul)
446 goto out;
447
448 keycode = atkbd->keycode[code];
1da177e4 449
0ae051a1
DT		 450 if (keycode != ATKBD_KEY_NULL)
451 input_event(dev, EV_MSC, MSC_SCAN, code);
1da177e4 452
0ae051a1 453 switch (keycode) {
1da177e4
LT		 454 case ATKBD_KEY_NULL:
455 break;
456 case ATKBD_KEY_UNKNOWN:
0ae051a1
DT		 457 printk(KERN_WARNING
458 "atkbd.c: Unknown key %s (%s set %d, code %#x on %s).\n",
459 atkbd->release ? "released" : "pressed",
460 atkbd->translated ? "translated" : "raw",
461 atkbd->set, code, serio->phys);
462 printk(KERN_WARNING
463 "atkbd.c: Use 'setkeycodes %s%02x <keycode>' to make it known.\n",
464 code & 0x80 ? "e0" : "", code & 0x7f);
465 input_sync(dev);
1da177e4
LT		 466 break;
467 case ATKBD_SCR_1:
468 scroll = 1 - atkbd->release * 2;
469 break;
470 case ATKBD_SCR_2:
471 scroll = 2 - atkbd->release * 4;
472 break;
473 case ATKBD_SCR_4:
474 scroll = 4 - atkbd->release * 8;
475 break;
476 case ATKBD_SCR_8:
477 scroll = 8 - atkbd->release * 16;
478 break;
479 case ATKBD_SCR_CLICK:
480 click = !atkbd->release;
481 break;
482 case ATKBD_SCR_LEFT:
483 hscroll = -1;
484 break;
485 case ATKBD_SCR_RIGHT:
486 hscroll = 1;
487 break;
488 default:
0ae051a1
DT		 489 if (atkbd->release) {
490 value = 0;
491 atkbd->last = 0;
492 } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) {
493 /* Workaround Toshiba laptop multiple keypress */
494 value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2;
495 } else {
496 value = 1;
497 atkbd->last = code;
498 atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2;
1da177e4
LT		 499 }
500
f8b4c46c 501 input_event(dev, EV_KEY, keycode, value);
0ae051a1
DT		 502 input_sync(dev);
503
554101e3 504 if (value && test_bit(code, atkbd->force_release_mask)) {
0ae051a1
DT		 505 input_report_key(dev, keycode, 0);
506 input_sync(dev);
507 }
1da177e4
LT		 508 }
509
510 if (atkbd->scroll) {
1da177e4 511 if (click != -1)
0ae051a1
DT		 512 input_report_key(dev, BTN_MIDDLE, click);
513 input_report_rel(dev, REL_WHEEL, scroll);
514 input_report_rel(dev, REL_HWHEEL, hscroll);
515 input_sync(dev);
1da177e4
LT		 516 }
517
518 atkbd->release = 0;
519out:
520 return IRQ_HANDLED;
521}
522
3d0f0fa0 523static int atkbd_set_repeat_rate(struct atkbd *atkbd)
1da177e4 524{
1da177e4
LT		 525 const short period[32] =
526 { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125,
527 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 };
528 const short delay[4] =
529 { 250, 500, 750, 1000 };
0d4c8597 530
3d0f0fa0
DT		 531 struct input_dev *dev = atkbd->dev;
532 unsigned char param;
533 int i = 0, j = 0;
534
535 while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD])
536 i++;
537 dev->rep[REP_PERIOD] = period[i];
538
8ea371fb 539 while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY])
3d0f0fa0
DT		 540 j++;
541 dev->rep[REP_DELAY] = delay[j];
542
543 param = i | (j << 5);
544 return ps2_command(&atkbd->ps2dev, &param, ATKBD_CMD_SETREP);
545}
546
547static int atkbd_set_leds(struct atkbd *atkbd)
548{
0d4c8597 549 struct input_dev *dev = atkbd->dev;
1da177e4 550 unsigned char param[2];
1da177e4 551
3d0f0fa0
DT		 552 param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
553 | (test_bit(LED_NUML, dev->led) ? 2 : 0)
554 | (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
555 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
556 return -1;
0d4c8597 557
3d0f0fa0
DT		 558 if (atkbd->extra) {
559 param[0] = 0;
560 param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
561 | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
562 | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
563 | (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
564 | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
565 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS))
566 return -1;
0d4c8597
DT		 567 }
568
3d0f0fa0
DT		 569 return 0;
570}
571
572/*
573 * atkbd_event_work() is used to complete processing of events that
574 * can not be processed by input_event() which is often called from
575 * interrupt context.
576 */
577
65f27f38 578static void atkbd_event_work(struct work_struct *work)
3d0f0fa0 579{
da4249c9 580 struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work);
3d0f0fa0 581
59b01513 582 mutex_lock(&atkbd->mutex);
3d0f0fa0 583
94dfb0d6
DT		 584 if (!atkbd->enabled) {
585 /*
586 * Serio ports are resumed asynchronously so while driver core
587 * thinks that device is already fully operational in reality
588 * it may not be ready yet. In this case we need to keep
589 * rescheduling till reconnect completes.
590 */
591 schedule_delayed_work(&atkbd->event_work,
592 msecs_to_jiffies(100));
593 } else {
594 if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask))
595 atkbd_set_leds(atkbd);
596
597 if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask))
598 atkbd_set_repeat_rate(atkbd);
599 }
0d4c8597 600
59b01513 601 mutex_unlock(&atkbd->mutex);
0d4c8597
DT		 602}
603
da4249c9
DT		 604/*
605 * Schedule switch for execution. We need to throttle requests,
606 * otherwise keyboard may become unresponsive.
607 */
608static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit)
609{
610 unsigned long delay = msecs_to_jiffies(50);
611
612 if (time_after(jiffies, atkbd->event_jiffies + delay))
613 delay = 0;
614
615 atkbd->event_jiffies = jiffies;
616 set_bit(event_bit, &atkbd->event_mask);
59b01513 617 mb();
da4249c9
DT		 618 schedule_delayed_work(&atkbd->event_work, delay);
619}
620
0d4c8597
DT		 621/*
622 * Event callback from the input module. Events that change the state of
623 * the hardware are processed here. If action can not be performed in
624 * interrupt context it is offloaded to atkbd_event_work.
625 */
626
da4249c9
DT		 627static int atkbd_event(struct input_dev *dev,
628 unsigned int type, unsigned int code, int value)
0d4c8597 629{
b356872f 630 struct atkbd *atkbd = input_get_drvdata(dev);
0d4c8597 631
1da177e4
LT		 632 if (!atkbd->write)
633 return -1;
634
635 switch (type) {
636
637 case EV_LED:
da4249c9 638 atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT);
1da177e4
LT		 639 return 0;
640
1da177e4 641 case EV_REP:
da4249c9
DT		 642 if (!atkbd->softrepeat)
643 atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT);
1da177e4
LT		 644 return 0;
645 }
646
647 return -1;
648}
649
650/*
651 * atkbd_enable() signals that interrupt handler is allowed to
652 * generate input events.
653 */
654
655static inline void atkbd_enable(struct atkbd *atkbd)
656{
657 serio_pause_rx(atkbd->ps2dev.serio);
658 atkbd->enabled = 1;
659 serio_continue_rx(atkbd->ps2dev.serio);
660}
661
662/*
663 * atkbd_disable() tells input handler that all incoming data except
664 * for ACKs and command response should be dropped.
665 */
666
667static inline void atkbd_disable(struct atkbd *atkbd)
668{
669 serio_pause_rx(atkbd->ps2dev.serio);
670 atkbd->enabled = 0;
671 serio_continue_rx(atkbd->ps2dev.serio);
672}
673
674/*
675 * atkbd_probe() probes for an AT keyboard on a serio port.
676 */
677
678static int atkbd_probe(struct atkbd *atkbd)
679{
680 struct ps2dev *ps2dev = &atkbd->ps2dev;
681 unsigned char param[2];
682
683/*
684 * Some systems, where the bit-twiddling when testing the io-lines of the
685 * controller may confuse the keyboard need a full reset of the keyboard. On
686 * these systems the BIOS also usually doesn't do it for us.
687 */
688
689 if (atkbd_reset)
690 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT))
691 printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", ps2dev->serio->phys);
692
693/*
694 * Then we check the keyboard ID. We should get 0xab83 under normal conditions.
695 * Some keyboards report different values, but the first byte is always 0xab or
696 * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
697 * should make sure we don't try to set the LEDs on it.
698 */
699
700 param[0] = param[1] = 0xa5; /* initialize with invalid values */
701 if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) {
702
703/*
704 * If the get ID command failed, we check if we can at least set the LEDs on
705 * the keyboard. This should work on every keyboard out there. It also turns
706 * the LEDs off, which we want anyway.
707 */
708 param[0] = 0;
709 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
710 return -1;
711 atkbd->id = 0xabba;
712 return 0;
713 }
714
9807879b 715 if (!ps2_is_keyboard_id(param[0]))
1da177e4
LT		 716 return -1;
717
718 atkbd->id = (param[0] << 8) | param[1];
719
720 if (atkbd->id == 0xaca1 && atkbd->translated) {
721 printk(KERN_ERR "atkbd.c: NCD terminal keyboards are only supported on non-translating\n");
722 printk(KERN_ERR "atkbd.c: controllers. Use i8042.direct=1 to disable translation.\n");
723 return -1;
724 }
725
726 return 0;
727}
728
729/*
730 * atkbd_select_set checks if a keyboard has a working Set 3 support, and
731 * sets it into that. Unfortunately there are keyboards that can be switched
732 * to Set 3, but don't work well in that (BTC Multimedia ...)
733 */
734
735static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra)
736{
737 struct ps2dev *ps2dev = &atkbd->ps2dev;
738 unsigned char param[2];
739
740 atkbd->extra = 0;
741/*
742 * For known special keyboards we can go ahead and set the correct set.
743 * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and
744 * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards.
745 */
746
747 if (atkbd->translated)
748 return 2;
749
750 if (atkbd->id == 0xaca1) {
751 param[0] = 3;
752 ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET);
753 return 3;
754 }
755
756 if (allow_extra) {
757 param[0] = 0x71;
758 if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) {
759 atkbd->extra = 1;
760 return 2;
761 }
762 }
763
764 if (target_set != 3)
765 return 2;
766
767 if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) {
768 atkbd->id = param[0] << 8 | param[1];
769 return 2;
770 }
771
772 param[0] = 3;
773 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
774 return 2;
775
776 param[0] = 0;
777 if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET))
778 return 2;
779
780 if (param[0] != 3) {
781 param[0] = 2;
782 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
783 return 2;
784 }
785
786 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR);
787
788 return 3;
789}
790
fc0eb28c
DT		 791static int atkbd_reset_state(struct atkbd *atkbd)
792{
793 struct ps2dev *ps2dev = &atkbd->ps2dev;
794 unsigned char param[1];
795
796/*
797 * Set the LEDs to a predefined state (all off).
798 */
799
800 param[0] = 0;
801 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
802 return -1;
803
804/*
805 * Set autorepeat to fastest possible.
806 */
807
808 param[0] = 0;
809 if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP))
810 return -1;
811
812 return 0;
813}
814
1da177e4
LT		 815static int atkbd_activate(struct atkbd *atkbd)
816{
817 struct ps2dev *ps2dev = &atkbd->ps2dev;
1da177e4
LT		 818
819/*
820 * Enable the keyboard to receive keystrokes.
821 */
822
823 if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) {
824 printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n",
825 ps2dev->serio->phys);
826 return -1;
827 }
828
829 return 0;
830}
831
832/*
833 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
834 * reboot.
835 */
836
837static void atkbd_cleanup(struct serio *serio)
838{
839 struct atkbd *atkbd = serio_get_drvdata(serio);
57f5b159
DT		 840
841 atkbd_disable(atkbd);
4a299bf5 842 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_DEF);
1da177e4
LT		 843}
844
845
846/*
847 * atkbd_disconnect() closes and frees.
848 */
849
850static void atkbd_disconnect(struct serio *serio)
851{
852 struct atkbd *atkbd = serio_get_drvdata(serio);
853
59b01513
EB		 854 sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
855
1da177e4
LT		 856 atkbd_disable(atkbd);
857
858 /* make sure we don't have a command in flight */
d6d79a78 859 cancel_delayed_work_sync(&atkbd->event_work);
1da177e4 860
3c42f0c3 861 input_unregister_device(atkbd->dev);
1da177e4
LT		 862 serio_close(serio);
863 serio_set_drvdata(serio, NULL);
864 kfree(atkbd);
865}
866
554101e3 867/*
39191698 868 * generate release events for the keycodes given in data
554101e3 869 */
39191698
DM		 870static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
871 const void *data)
554101e3 872{
39191698
DM		 873 const unsigned int *keys = data;
874 unsigned int i;
554101e3
GN		 875
876 if (atkbd->set == 2)
39191698
DM		 877 for (i = 0; keys[i] != -1U; i++)
878 __set_bit(keys[i], atkbd->force_release_mask);
554101e3 879}
1da177e4 880
39191698
DM		 881/*
882 * Most special keys (Fn+F?) on Dell laptops do not generate release
883 * events so we have to do it ourselves.
884 */
885static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
886 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
887};
888
5a54c011
JK		 889/*
890 * Perform fixup for HP system that doesn't generate release
891 * for its video switch
892 */
39191698
DM		 893static unsigned int atkbd_hp_forced_release_keys[] = {
894 0x94, -1U
895};
5a54c011 896
4200844b 897/*
e04126c7 898 * Samsung NC10,NC20 with Fn+F? key release not working
4200844b 899 */
39191698
DM		 900static unsigned int atkbd_samsung_forced_release_keys[] = {
901 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
902};
4200844b 903
f0a14de2
SD		 904/*
905 * Amilo Pi 3525 key release for Fn+Volume keys not working
906 */
907static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = {
908 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U
909};
910
9166d0f6
AB		 911/*
912 * Amilo Xi 3650 key release for light touch bar not working
913 */
914static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
915 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U
916};
917
032e46cb
JY		 918/*
919 * Soltech TA12 system with broken key release on volume keys and mute key
920 */
921static unsigned int atkdb_soltech_ta12_forced_release_keys[] = {
922 0xa0, 0xae, 0xb0, -1U
923};
924
000c2a35
HRK		 925/*
926 * Many notebooks don't send key release event for volume up/down
927 * keys, with key list below common among them
928 */
929static unsigned int atkbd_volume_forced_release_keys[] = {
930 0xae, 0xb0, -1U
931};
932
e5713069
JL		 933/*
934 * OQO 01+ multimedia keys (64--66) generate e0 6x upon release whereas
935 * they should be generating e4-e6 (0x80 | code).
936 */
937static unsigned int atkbd_oqo_01plus_scancode_fixup(struct atkbd *atkbd,
938 unsigned int code)
939{
940 if (atkbd->translated && atkbd->emul == 1 &&
941 (code == 0x64 || code == 0x65 || code == 0x66)) {
942 atkbd->emul = 0;
943 code |= 0x80;
944 }
945
946 return code;
947}
948
1da177e4 949/*
3c42f0c3 950 * atkbd_set_keycode_table() initializes keyboard's keycode table
1da177e4
LT		 951 * according to the selected scancode set
952 */
953
954static void atkbd_set_keycode_table(struct atkbd *atkbd)
955{
554101e3 956 unsigned int scancode;
1da177e4
LT		 957 int i, j;
958
959 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
1ba36e11 960 bitmap_zero(atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1da177e4
LT		 961
962 if (atkbd->translated) {
963 for (i = 0; i < 128; i++) {
554101e3
GN		 964 scancode = atkbd_unxlate_table[i];
965 atkbd->keycode[i] = atkbd_set2_keycode[scancode];
966 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
1da177e4
LT		 967 if (atkbd->scroll)
968 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
554101e3 969 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
1da177e4
LT		 970 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
971 }
972 } else if (atkbd->set == 3) {
973 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
974 } else {
975 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
976
977 if (atkbd->scroll)
554101e3
GN		 978 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
979 scancode = atkbd_scroll_keys[i].set2;
980 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
981 }
1da177e4 982 }
0ae051a1 983
554101e3
GN		 984/*
985 * HANGEUL and HANJA keys do not send release events so we need to
986 * generate such events ourselves
987 */
988 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
989 atkbd->keycode[scancode] = KEY_HANGEUL;
990 __set_bit(scancode, atkbd->force_release_mask);
991
992 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
993 atkbd->keycode[scancode] = KEY_HANJA;
994 __set_bit(scancode, atkbd->force_release_mask);
995
996/*
997 * Perform additional fixups
998 */
999 if (atkbd_platform_fixup)
39191698 1000 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
1da177e4
LT		 1001}
1002
1003/*
1004 * atkbd_set_device_attrs() sets up keyboard's input device structure
1005 */
1006
1007static void atkbd_set_device_attrs(struct atkbd *atkbd)
1008{
3c42f0c3 1009 struct input_dev *input_dev = atkbd->dev;
1da177e4
LT		 1010 int i;
1011
3c42f0c3 1012 if (atkbd->extra)
ea08c6fa
DT		 1013 snprintf(atkbd->name, sizeof(atkbd->name),
1014 "AT Set 2 Extra keyboard");
3c42f0c3 1015 else
ea08c6fa
DT		 1016 snprintf(atkbd->name, sizeof(atkbd->name),
1017 "AT %s Set %d keyboard",
1018 atkbd->translated ? "Translated" : "Raw", atkbd->set);
1da177e4 1019
ea08c6fa
DT		 1020 snprintf(atkbd->phys, sizeof(atkbd->phys),
1021 "%s/input0", atkbd->ps2dev.serio->phys);
1da177e4 1022
3c42f0c3
DT		 1023 input_dev->name = atkbd->name;
1024 input_dev->phys = atkbd->phys;
1025 input_dev->id.bustype = BUS_I8042;
1026 input_dev->id.vendor = 0x0001;
1027 input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
1028 input_dev->id.version = atkbd->id;
1029 input_dev->event = atkbd_event;
469ba4df 1030 input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
1da177e4 1031
b356872f
DT		 1032 input_set_drvdata(input_dev, atkbd);
1033
7b19ada2
JS		 1034 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
1035 BIT_MASK(EV_MSC);
1da177e4
LT		 1036
1037 if (atkbd->write) {
7b19ada2
JS		 1038 input_dev->evbit[0] |= BIT_MASK(EV_LED);
1039 input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
1040 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
1da177e4
LT		 1041 }
1042
1043 if (atkbd->extra)
7b19ada2
JS		 1044 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
1045 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
1046 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
1da177e4
LT		 1047
1048 if (!atkbd->softrepeat) {
3c42f0c3
DT		 1049 input_dev->rep[REP_DELAY] = 250;
1050 input_dev->rep[REP_PERIOD] = 33;
1da177e4
LT		 1051 }
1052
7b19ada2
JS		 1053 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
1054 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
1da177e4
LT		 1055
1056 if (atkbd->scroll) {
7b19ada2
JS		 1057 input_dev->evbit[0] |= BIT_MASK(EV_REL);
1058 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
1059 BIT_MASK(REL_HWHEEL);
f6d65610 1060 __set_bit(BTN_MIDDLE, input_dev->keybit);
1da177e4
LT		 1061 }
1062
3c42f0c3 1063 input_dev->keycode = atkbd->keycode;
f6d65610 1064 input_dev->keycodesize = sizeof(unsigned short);
3c42f0c3 1065 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
1da177e4 1066
1ba36e11 1067 for (i = 0; i < ATKBD_KEYMAP_SIZE; i++)
1da177e4 1068 if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL)
f6d65610 1069 __set_bit(atkbd->keycode[i], input_dev->keybit);
1da177e4
LT		 1070}
1071
1072/*
1073 * atkbd_connect() is called when the serio module finds an interface
1074 * that isn't handled yet by an appropriate device driver. We check if
1075 * there is an AT keyboard out there and if yes, we register ourselves
1076 * to the input module.
1077 */
1078
1079static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
1080{
1081 struct atkbd *atkbd;
3c42f0c3
DT		 1082 struct input_dev *dev;
1083 int err = -ENOMEM;
1da177e4 1084
3c42f0c3
DT		 1085 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
1086 dev = input_allocate_device();
1087 if (!atkbd || !dev)
2b03b60e 1088 goto fail1;
1da177e4 1089
3c42f0c3 1090 atkbd->dev = dev;
1da177e4 1091 ps2_init(&atkbd->ps2dev, serio);
da4249c9 1092 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
59b01513 1093 mutex_init(&atkbd->mutex);
1da177e4
LT		 1094
1095 switch (serio->id.type) {
1096
1097 case SERIO_8042_XL:
1098 atkbd->translated = 1;
1099 case SERIO_8042:
1100 if (serio->write)
1101 atkbd->write = 1;
1102 break;
1103 }
1104
1105 atkbd->softraw = atkbd_softraw;
1106 atkbd->softrepeat = atkbd_softrepeat;
1107 atkbd->scroll = atkbd_scroll;
1108
1da177e4
LT		 1109 if (atkbd->softrepeat)
1110 atkbd->softraw = 1;
1111
1112 serio_set_drvdata(serio, atkbd);
1113
1114 err = serio_open(serio, drv);
3c42f0c3 1115 if (err)
2b03b60e 1116 goto fail2;
1da177e4
LT		 1117
1118 if (atkbd->write) {
1119
1120 if (atkbd_probe(atkbd)) {
3c42f0c3 1121 err = -ENODEV;
2b03b60e 1122 goto fail3;
1da177e4
LT		 1123 }
1124
1125 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
fc0eb28c 1126 atkbd_reset_state(atkbd);
1da177e4
LT		 1127 atkbd_activate(atkbd);
1128
1129 } else {
1130 atkbd->set = 2;
1131 atkbd->id = 0xab00;
1132 }
1133
1da177e4
LT		 1134 atkbd_set_keycode_table(atkbd);
1135 atkbd_set_device_attrs(atkbd);
1136
2b03b60e
DT		 1137 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group);
1138 if (err)
1139 goto fail3;
1da177e4
LT		 1140
1141 atkbd_enable(atkbd);
1142
2b03b60e
DT		 1143 err = input_register_device(atkbd->dev);
1144 if (err)
1145 goto fail4;
1da177e4
LT		 1146
1147 return 0;
3c42f0c3 1148
2b03b60e
DT		 1149 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
1150 fail3: serio_close(serio);
1151 fail2: serio_set_drvdata(serio, NULL);
1152 fail1: input_free_device(dev);
3c42f0c3
DT		 1153 kfree(atkbd);
1154 return err;
1da177e4
LT		 1155}
1156
1157/*
1158 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1159 * most likely called on resume.
1160 */
1161
1162static int atkbd_reconnect(struct serio *serio)
1163{
1164 struct atkbd *atkbd = serio_get_drvdata(serio);
1165 struct serio_driver *drv = serio->drv;
59b01513 1166 int retval = -1;
1da177e4
LT		 1167
1168 if (!atkbd || !drv) {
1169 printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
1170 return -1;
1171 }
1172
59b01513
EB		 1173 mutex_lock(&atkbd->mutex);
1174
1da177e4
LT		 1175 atkbd_disable(atkbd);
1176
1177 if (atkbd->write) {
1da177e4 1178 if (atkbd_probe(atkbd))
59b01513
EB		 1179 goto out;
1180
1da177e4 1181 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
59b01513 1182 goto out;
1da177e4
LT		 1183
1184 atkbd_activate(atkbd);
d4119bda
DT		 1185
1186 /*
1187 * Restore LED state and repeat rate. While input core
1188 * will do this for us at resume time reconnect may happen
1189 * because user requested it via sysfs or simply because
1190 * keyboard was unplugged and plugged in again so we need
1191 * to do it ourselves here.
1192 */
1193 atkbd_set_leds(atkbd);
1194 if (!atkbd->softrepeat)
1195 atkbd_set_repeat_rate(atkbd);
1196
1da177e4
LT		 1197 }
1198
1199 atkbd_enable(atkbd);
59b01513 1200 retval = 0;
1da177e4 1201
59b01513
EB		 1202 out:
1203 mutex_unlock(&atkbd->mutex);
1204 return retval;
1da177e4
LT		 1205}
1206
1207static struct serio_device_id atkbd_serio_ids[] = {
1208 {
1209 .type = SERIO_8042,
1210 .proto = SERIO_ANY,
1211 .id = SERIO_ANY,
1212 .extra = SERIO_ANY,
1213 },
1214 {
1215 .type = SERIO_8042_XL,
1216 .proto = SERIO_ANY,
1217 .id = SERIO_ANY,
1218 .extra = SERIO_ANY,
1219 },
1220 {
1221 .type = SERIO_RS232,
1222 .proto = SERIO_PS2SER,
1223 .id = SERIO_ANY,
1224 .extra = SERIO_ANY,
1225 },
1226 { 0 }
1227};
1228
1229MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1230
1231static struct serio_driver atkbd_drv = {
1232 .driver = {
1233 .name = "atkbd",
1234 },
1235 .description = DRIVER_DESC,
1236 .id_table = atkbd_serio_ids,
1237 .interrupt = atkbd_interrupt,
1238 .connect = atkbd_connect,
1239 .reconnect = atkbd_reconnect,
1240 .disconnect = atkbd_disconnect,
1241 .cleanup = atkbd_cleanup,
1242};
1243
1244static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1245 ssize_t (*handler)(struct atkbd *, char *))
1246{
1247 struct serio *serio = to_serio_port(dev);
59b01513 1248 struct atkbd *atkbd = serio_get_drvdata(serio);
1da177e4 1249
59b01513 1250 return handler(atkbd, buf);
1da177e4
LT		 1251}
1252
1253static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1254 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1255{
1256 struct serio *serio = to_serio_port(dev);
59b01513 1257 struct atkbd *atkbd = serio_get_drvdata(serio);
1da177e4
LT		 1258 int retval;
1259
59b01513 1260 retval = mutex_lock_interruptible(&atkbd->mutex);
1da177e4
LT		 1261 if (retval)
1262 return retval;
1263
1da177e4
LT		 1264 atkbd_disable(atkbd);
1265 retval = handler(atkbd, buf, count);
1266 atkbd_enable(atkbd);
1267
59b01513
EB		 1268 mutex_unlock(&atkbd->mutex);
1269
1da177e4
LT		 1270 return retval;
1271}
1272
1273static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1274{
1275 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1276}
1277
1278static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1279{
2b03b60e 1280 struct input_dev *old_dev, *new_dev;
1da177e4 1281 unsigned long value;
2b03b60e
DT		 1282 int err;
1283 unsigned char old_extra, old_set;
1da177e4
LT		 1284
1285 if (!atkbd->write)
1286 return -EIO;
1287
160f1fef 1288 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1289 return -EINVAL;
1290
1291 if (atkbd->extra != value) {
3c42f0c3
DT		 1292 /*
1293 * Since device's properties will change we need to
2b03b60e
DT		 1294 * unregister old device. But allocate and register
1295 * new one first to make sure we have it.
3c42f0c3 1296 */
2b03b60e
DT		 1297 old_dev = atkbd->dev;
1298 old_extra = atkbd->extra;
1299 old_set = atkbd->set;
1300
1301 new_dev = input_allocate_device();
1302 if (!new_dev)
3c42f0c3 1303 return -ENOMEM;
2b03b60e 1304
3c42f0c3 1305 atkbd->dev = new_dev;
1da177e4 1306 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
fc0eb28c 1307 atkbd_reset_state(atkbd);
1da177e4 1308 atkbd_activate(atkbd);
2b03b60e 1309 atkbd_set_keycode_table(atkbd);
1da177e4 1310 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1311
1312 err = input_register_device(atkbd->dev);
1313 if (err) {
1314 input_free_device(new_dev);
1315
1316 atkbd->dev = old_dev;
1317 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1318 atkbd_set_keycode_table(atkbd);
1319 atkbd_set_device_attrs(atkbd);
1320
1321 return err;
1322 }
1323 input_unregister_device(old_dev);
1324
1da177e4
LT		 1325 }
1326 return count;
1327}
1328
1ba36e11
DT		 1329static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf)
1330{
1331 size_t len = bitmap_scnlistprintf(buf, PAGE_SIZE - 2,
1332 atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1333
1334 buf[len++] = '\n';
1335 buf[len] = '\0';
1336
1337 return len;
1338}
1339
1340static ssize_t atkbd_set_force_release(struct atkbd *atkbd,
1341 const char *buf, size_t count)
1342{
1343 /* 64 bytes on stack should be acceptable */
1344 DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE);
1345 int err;
1346
1347 err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE);
1348 if (err)
1349 return err;
1350
1351 memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask));
1352 return count;
1353}
1354
1355
1da177e4
LT		 1356static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1357{
1358 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1359}
1360
1361static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1362{
2b03b60e 1363 struct input_dev *old_dev, *new_dev;
1da177e4 1364 unsigned long value;
2b03b60e
DT		 1365 int err;
1366 unsigned char old_scroll;
1da177e4 1367
160f1fef 1368 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1369 return -EINVAL;
1370
1371 if (atkbd->scroll != value) {
2b03b60e
DT		 1372 old_dev = atkbd->dev;
1373 old_scroll = atkbd->scroll;
1374
1375 new_dev = input_allocate_device();
1376 if (!new_dev)
3c42f0c3 1377 return -ENOMEM;
2b03b60e 1378
3c42f0c3 1379 atkbd->dev = new_dev;
1da177e4
LT		 1380 atkbd->scroll = value;
1381 atkbd_set_keycode_table(atkbd);
1382 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1383
1384 err = input_register_device(atkbd->dev);
1385 if (err) {
1386 input_free_device(new_dev);
1387
1388 atkbd->scroll = old_scroll;
1389 atkbd->dev = old_dev;
1390 atkbd_set_keycode_table(atkbd);
1391 atkbd_set_device_attrs(atkbd);
1392
1393 return err;
1394 }
1395 input_unregister_device(old_dev);
1da177e4
LT		 1396 }
1397 return count;
1398}
1399
1400static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1401{
1402 return sprintf(buf, "%d\n", atkbd->set);
1403}
1404
1405static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1406{
2b03b60e 1407 struct input_dev *old_dev, *new_dev;
1da177e4 1408 unsigned long value;
2b03b60e
DT		 1409 int err;
1410 unsigned char old_set, old_extra;
1da177e4
LT		 1411
1412 if (!atkbd->write)
1413 return -EIO;
1414
160f1fef 1415 if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3))
1da177e4
LT		 1416 return -EINVAL;
1417
1418 if (atkbd->set != value) {
2b03b60e
DT		 1419 old_dev = atkbd->dev;
1420 old_extra = atkbd->extra;
1421 old_set = atkbd->set;
1422
1423 new_dev = input_allocate_device();
1424 if (!new_dev)
3c42f0c3 1425 return -ENOMEM;
2b03b60e 1426
3c42f0c3 1427 atkbd->dev = new_dev;
1da177e4 1428 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
d4119bda 1429 atkbd_reset_state(atkbd);
1da177e4
LT		 1430 atkbd_activate(atkbd);
1431 atkbd_set_keycode_table(atkbd);
1432 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1433
1434 err = input_register_device(atkbd->dev);
1435 if (err) {
1436 input_free_device(new_dev);
1437
1438 atkbd->dev = old_dev;
1439 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1440 atkbd_set_keycode_table(atkbd);
1441 atkbd_set_device_attrs(atkbd);
1442
1443 return err;
1444 }
1445 input_unregister_device(old_dev);
1da177e4
LT		 1446 }
1447 return count;
1448}
1449
1450static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1451{
1452 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1453}
1454
1455static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1456{
2b03b60e 1457 struct input_dev *old_dev, *new_dev;
1da177e4 1458 unsigned long value;
2b03b60e
DT		 1459 int err;
1460 unsigned char old_softrepeat, old_softraw;
1da177e4
LT		 1461
1462 if (!atkbd->write)
1463 return -EIO;
1464
160f1fef 1465 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1466 return -EINVAL;
1467
1468 if (atkbd->softrepeat != value) {
2b03b60e
DT		 1469 old_dev = atkbd->dev;
1470 old_softrepeat = atkbd->softrepeat;
1471 old_softraw = atkbd->softraw;
1472
1473 new_dev = input_allocate_device();
1474 if (!new_dev)
3c42f0c3 1475 return -ENOMEM;
2b03b60e 1476
3c42f0c3 1477 atkbd->dev = new_dev;
1da177e4
LT		 1478 atkbd->softrepeat = value;
1479 if (atkbd->softrepeat)
1480 atkbd->softraw = 1;
1481 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1482
1483 err = input_register_device(atkbd->dev);
1484 if (err) {
1485 input_free_device(new_dev);
1486
1487 atkbd->dev = old_dev;
1488 atkbd->softrepeat = old_softrepeat;
1489 atkbd->softraw = old_softraw;
1490 atkbd_set_device_attrs(atkbd);
1491
1492 return err;
1493 }
1494 input_unregister_device(old_dev);
1da177e4 1495 }
1da177e4
LT		 1496 return count;
1497}
1498
1499
1500static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1501{
1502 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1503}
1504
1505static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1506{
2b03b60e 1507 struct input_dev *old_dev, *new_dev;
1da177e4 1508 unsigned long value;
2b03b60e
DT		 1509 int err;
1510 unsigned char old_softraw;
1da177e4 1511
160f1fef 1512 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1513 return -EINVAL;
1514
1515 if (atkbd->softraw != value) {
2b03b60e
DT		 1516 old_dev = atkbd->dev;
1517 old_softraw = atkbd->softraw;
1518
1519 new_dev = input_allocate_device();
1520 if (!new_dev)
3c42f0c3 1521 return -ENOMEM;
2b03b60e 1522
3c42f0c3 1523 atkbd->dev = new_dev;
1da177e4
LT		 1524 atkbd->softraw = value;
1525 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1526
1527 err = input_register_device(atkbd->dev);
1528 if (err) {
1529 input_free_device(new_dev);
1530
1531 atkbd->dev = old_dev;
1532 atkbd->softraw = old_softraw;
1533 atkbd_set_device_attrs(atkbd);
1534
1535 return err;
1536 }
1537 input_unregister_device(old_dev);
1da177e4
LT		 1538 }
1539 return count;
1540}
1541
86255d9d
DT		 1542static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1543{
1544 return sprintf(buf, "%lu\n", atkbd->err_count);
1545}
1546
39191698 1547static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
554101e3 1548{
39191698
DM		 1549 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1550 atkbd_platform_fixup_data = id->driver_data;
1551
554101e3
GN		 1552 return 0;
1553}
1554
e5713069
JL		 1555static int __init atkbd_setup_scancode_fixup(const struct dmi_system_id *id)
1556{
1557 atkbd_platform_scancode_fixup = id->driver_data;
1558
1559 return 0;
1560}
1561
c45fc81e 1562static const struct dmi_system_id atkbd_dmi_quirk_table[] __initconst = {
554101e3 1563 {
554101e3
GN		 1564 .matches = {
1565 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
61579ba8 1566 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
554101e3 1567 },
39191698
DM		 1568 .callback = atkbd_setup_forced_release,
1569 .driver_data = atkbd_dell_laptop_forced_release_keys,
554101e3 1570 },
2a3ec326 1571 {
2a3ec326
MG		 1572 .matches = {
1573 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1574 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1575 },
39191698
DM		 1576 .callback = atkbd_setup_forced_release,
1577 .driver_data = atkbd_dell_laptop_forced_release_keys,
2a3ec326 1578 },
5a54c011 1579 {
5a54c011
JK		 1580 .matches = {
1581 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1582 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1583 },
39191698
DM		 1584 .callback = atkbd_setup_forced_release,
1585 .driver_data = atkbd_hp_forced_release_keys,
5a54c011 1586 },
181f6382 1587 {
181f6382
RL		 1588 .matches = {
1589 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1590 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1591 },
39191698 1592 .callback = atkbd_setup_forced_release,
000c2a35 1593 .driver_data = atkbd_volume_forced_release_keys,
181f6382 1594 },
2bcaa6a4 1595 {
2bcaa6a4
DA		 1596 .matches = {
1597 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1598 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"),
1599 },
1600 .callback = atkbd_setup_forced_release,
000c2a35 1601 .driver_data = atkbd_volume_forced_release_keys,
2bcaa6a4
DA		 1602 },
1603 {
2bcaa6a4
DA		 1604 .matches = {
1605 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1606 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"),
1607 },
1608 .callback = atkbd_setup_forced_release,
000c2a35 1609 .driver_data = atkbd_volume_forced_release_keys,
2bcaa6a4
DA		 1610 },
1611 {
2bcaa6a4
DA		 1612 .matches = {
1613 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1614 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"),
1615 },
1616 .callback = atkbd_setup_forced_release,
000c2a35 1617 .driver_data = atkbd_volume_forced_release_keys,
2bcaa6a4 1618 },
a8215b81 1619 {
c45fc81e 1620 /* Inventec Symphony */
a8215b81
MG		 1621 .matches = {
1622 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1623 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1624 },
39191698 1625 .callback = atkbd_setup_forced_release,
000c2a35 1626 .driver_data = atkbd_volume_forced_release_keys,
a8215b81 1627 },
4200844b 1628 {
c45fc81e 1629 /* Samsung NC10 */
4200844b
SH		 1630 .matches = {
1631 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1632 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1633 },
39191698
DM		 1634 .callback = atkbd_setup_forced_release,
1635 .driver_data = atkbd_samsung_forced_release_keys,
4200844b 1636 },
e04126c7 1637 {
c45fc81e 1638 /* Samsung NC20 */
e04126c7
BC		 1639 .matches = {
1640 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1641 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
1642 },
1643 .callback = atkbd_setup_forced_release,
1644 .driver_data = atkbd_samsung_forced_release_keys,
1645 },
157f3a3e 1646 {
c45fc81e 1647 /* Samsung SQ45S70S */
157f3a3e
DT		 1648 .matches = {
1649 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1650 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
1651 },
1652 .callback = atkbd_setup_forced_release,
1653 .driver_data = atkbd_samsung_forced_release_keys,
1654 },
adcb523e 1655 {
c45fc81e 1656 /* Fujitsu Amilo PA 1510 */
adcb523e
DM		 1657 .matches = {
1658 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1659 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1660 },
1661 .callback = atkbd_setup_forced_release,
000c2a35 1662 .driver_data = atkbd_volume_forced_release_keys,
adcb523e 1663 },
f0a14de2 1664 {
c45fc81e 1665 /* Fujitsu Amilo Pi 3525 */
f0a14de2
SD		 1666 .matches = {
1667 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1668 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"),
1669 },
1670 .callback = atkbd_setup_forced_release,
1671 .driver_data = atkbd_amilo_pi3525_forced_release_keys,
1672 },
9166d0f6 1673 {
c45fc81e 1674 /* Fujitsu Amilo Xi 3650 */
9166d0f6
AB		 1675 .matches = {
1676 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1677 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"),
1678 },
1679 .callback = atkbd_setup_forced_release,
1680 .driver_data = atkbd_amilo_xi3650_forced_release_keys,
1681 },
032e46cb 1682 {
032e46cb
JY		 1683 .matches = {
1684 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"),
1685 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"),
1686 },
1687 .callback = atkbd_setup_forced_release,
1688 .driver_data = atkdb_soltech_ta12_forced_release_keys,
1689 },
e5713069 1690 {
c45fc81e 1691 /* OQO Model 01+ */
e5713069
JL		 1692 .matches = {
1693 DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
1694 DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
1695 },
1696 .callback = atkbd_setup_scancode_fixup,
1697 .driver_data = atkbd_oqo_01plus_scancode_fixup,
1698 },
554101e3
GN		 1699 { }
1700};
1da177e4
LT		 1701
1702static int __init atkbd_init(void)
1703{
554101e3
GN		 1704 dmi_check_system(atkbd_dmi_quirk_table);
1705
153a9df0 1706 return serio_register_driver(&atkbd_drv);
1da177e4
LT		 1707}
1708
1709static void __exit atkbd_exit(void)
1710{
1711 serio_unregister_driver(&atkbd_drv);
1712}
1713
1714module_init(atkbd_init);
1715module_exit(atkbd_exit);
Clone of davem's net-next-2.6 tree