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[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__)
a9a1f9c3 43static bool atkbd_reset;
1da177e4 44#else
a9a1f9c3 45static bool atkbd_reset = true;
1da177e4
LT		 46#endif
47module_param_named(reset, atkbd_reset, bool, 0);
48MODULE_PARM_DESC(reset, "Reset keyboard during initialization");
49
a9a1f9c3 50static bool atkbd_softrepeat;
1da177e4
LT		 51module_param_named(softrepeat, atkbd_softrepeat, bool, 0);
52MODULE_PARM_DESC(softrepeat, "Use software keyboard repeat");
53
a9a1f9c3 54static bool atkbd_softraw = true;
1da177e4
LT		 55module_param_named(softraw, atkbd_softraw, bool, 0);
56MODULE_PARM_DESC(softraw, "Use software generated rawmode");
57
a9a1f9c3 58static bool 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
a9a1f9c3 62static bool atkbd_extra;
1da177e4
LT		 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 207 unsigned char set;
a9a1f9c3
DT		 208 bool translated;
209 bool extra;
210 bool write;
211 bool softrepeat;
212 bool softraw;
213 bool scroll;
214 bool enabled;
1da177e4
LT		 215
216 /* Accessed only from interrupt */
217 unsigned char emul;
a9a1f9c3
DT		 218 bool resend;
219 bool release;
0ae051a1 220 unsigned long xl_bit;
1da177e4
LT		 221 unsigned int last;
222 unsigned long time;
86255d9d 223 unsigned long err_count;
0d4c8597 224
da4249c9
DT		 225 struct delayed_work event_work;
226 unsigned long event_jiffies;
33d3f07a 227 struct mutex event_mutex;
0d4c8597 228 unsigned long event_mask;
1da177e4
LT		 229};
230
554101e3 231/*
36726dd9 232 * System-specific keymap fixup routine
554101e3 233 */
39191698
DM		 234static void (*atkbd_platform_fixup)(struct atkbd *, const void *data);
235static void *atkbd_platform_fixup_data;
e5713069 236static unsigned int (*atkbd_platform_scancode_fixup)(struct atkbd *, unsigned int);
554101e3 237
1da177e4
LT		 238static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
239 ssize_t (*handler)(struct atkbd *, char *));
240static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
241 ssize_t (*handler)(struct atkbd *, const char *, size_t));
242#define ATKBD_DEFINE_ATTR(_name) \
243static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
244static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \
86255d9d
DT		 245static ssize_t atkbd_do_show_##_name(struct device *d, \
246 struct device_attribute *attr, char *b) \
1da177e4
LT		 247{ \
248 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
249} \
86255d9d
DT		 250static ssize_t atkbd_do_set_##_name(struct device *d, \
251 struct device_attribute *attr, const char *b, size_t s) \
1da177e4
LT		 252{ \
253 return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \
254} \
d083e906 255static struct device_attribute atkbd_attr_##_name = \
1da177e4
LT		 256 __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name);
257
258ATKBD_DEFINE_ATTR(extra);
1ba36e11 259ATKBD_DEFINE_ATTR(force_release);
1da177e4
LT		 260ATKBD_DEFINE_ATTR(scroll);
261ATKBD_DEFINE_ATTR(set);
262ATKBD_DEFINE_ATTR(softrepeat);
263ATKBD_DEFINE_ATTR(softraw);
264
86255d9d
DT		 265#define ATKBD_DEFINE_RO_ATTR(_name) \
266static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
267static ssize_t atkbd_do_show_##_name(struct device *d, \
268 struct device_attribute *attr, char *b) \
269{ \
270 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
271} \
272static struct device_attribute atkbd_attr_##_name = \
273 __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL);
274
275ATKBD_DEFINE_RO_ATTR(err_count);
276
277static struct attribute *atkbd_attributes[] = {
278 &atkbd_attr_extra.attr,
1ba36e11 279 &atkbd_attr_force_release.attr,
86255d9d
DT		 280 &atkbd_attr_scroll.attr,
281 &atkbd_attr_set.attr,
282 &atkbd_attr_softrepeat.attr,
283 &atkbd_attr_softraw.attr,
284 &atkbd_attr_err_count.attr,
285 NULL
286};
287
288static struct attribute_group atkbd_attribute_group = {
289 .attrs = atkbd_attributes,
290};
291
0ae051a1
DT		 292static const unsigned int xl_table[] = {
293 ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK,
294 ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL,
295};
1da177e4 296
0ae051a1
DT		 297/*
298 * Checks if we should mangle the scancode to extract 'release' bit
299 * in translated mode.
300 */
a9a1f9c3 301static bool atkbd_need_xlate(unsigned long xl_bit, unsigned char code)
1da177e4 302{
0ae051a1
DT		 303 int i;
304
305 if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1)
a9a1f9c3 306 return false;
0ae051a1
DT		 307
308 for (i = 0; i < ARRAY_SIZE(xl_table); i++)
309 if (code == xl_table[i])
310 return test_bit(i, &xl_bit);
311
a9a1f9c3 312 return true;
0ae051a1
DT		 313}
314
315/*
316 * Calculates new value of xl_bit so the driver can distinguish
317 * between make/break pair of scancodes for select keys and PS/2
318 * protocol responses.
319 */
320static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code)
321{
322 int i;
323
324 for (i = 0; i < ARRAY_SIZE(xl_table); i++) {
325 if (!((code ^ xl_table[i]) & 0x7f)) {
326 if (code & 0x80)
327 __clear_bit(i, &atkbd->xl_bit);
328 else
329 __set_bit(i, &atkbd->xl_bit);
330 break;
331 }
332 }
333}
334
335/*
336 * Encode the scancode, 0xe0 prefix, and high bit into a single integer,
337 * keeping kernel 2.4 compatibility for set 2
338 */
339static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code)
340{
341 if (atkbd->set == 3) {
342 if (atkbd->emul == 1)
343 code |= 0x100;
344 } else {
345 code = (code & 0x7f) | ((code & 0x80) << 1);
346 if (atkbd->emul == 1)
347 code |= 0x80;
348 }
349
350 return code;
1da177e4
LT		 351}
352
353/*
354 * atkbd_interrupt(). Here takes place processing of data received from
355 * the keyboard into events.
356 */
357
358static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
a9a1f9c3 359 unsigned int flags)
1da177e4
LT		 360{
361 struct atkbd *atkbd = serio_get_drvdata(serio);
0ae051a1 362 struct input_dev *dev = atkbd->dev;
1da177e4 363 unsigned int code = data;
554101e3 364 int scroll = 0, hscroll = 0, click = -1;
1da177e4 365 int value;
f6d65610 366 unsigned short keycode;
1da177e4 367
a9a1f9c3 368 dev_dbg(&serio->dev, "Received %02x flags %02x\n", data, flags);
1da177e4
LT		 369
370#if !defined(__i386__) && !defined (__x86_64__)
371 if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
a9a1f9c3 372 dev_warn(&serio->dev, "Frame/parity error: %02x\n", flags);
1da177e4 373 serio_write(serio, ATKBD_CMD_RESEND);
a9a1f9c3 374 atkbd->resend = true;
1da177e4
LT		 375 goto out;
376 }
377
378 if (!flags && data == ATKBD_RET_ACK)
a9a1f9c3 379 atkbd->resend = false;
1da177e4
LT		 380#endif
381
382 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK))
383 if (ps2_handle_ack(&atkbd->ps2dev, data))
384 goto out;
385
386 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD))
387 if (ps2_handle_response(&atkbd->ps2dev, data))
388 goto out;
389
390 if (!atkbd->enabled)
391 goto out;
392
0ae051a1 393 input_event(dev, EV_MSC, MSC_RAW, code);
1da177e4 394
e5713069
JL		 395 if (atkbd_platform_scancode_fixup)
396 code = atkbd_platform_scancode_fixup(atkbd, code);
397
1da177e4
LT		 398 if (atkbd->translated) {
399
0ae051a1 400 if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) {
1da177e4
LT		 401 atkbd->release = code >> 7;
402 code &= 0x7f;
403 }
404
0ae051a1
DT		 405 if (!atkbd->emul)
406 atkbd_calculate_xl_bit(atkbd, data);
1da177e4
LT		 407 }
408
409 switch (code) {
a9a1f9c3
DT		 410 case ATKBD_RET_BAT:
411 atkbd->enabled = false;
412 serio_reconnect(atkbd->ps2dev.serio);
413 goto out;
414 case ATKBD_RET_EMUL0:
415 atkbd->emul = 1;
416 goto out;
417 case ATKBD_RET_EMUL1:
418 atkbd->emul = 2;
419 goto out;
420 case ATKBD_RET_RELEASE:
421 atkbd->release = true;
422 goto out;
423 case ATKBD_RET_ACK:
424 case ATKBD_RET_NAK:
425 if (printk_ratelimit())
426 dev_warn(&serio->dev,
427 "Spurious %s on %s. "
428 "Some program might be trying access hardware directly.\n",
429 data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
430 goto out;
431 case ATKBD_RET_ERR:
432 atkbd->err_count++;
433 dev_dbg(&serio->dev, "Keyboard on %s reports too many keys pressed.\n",
434 serio->phys);
435 goto out;
1da177e4
LT		 436 }
437
0ae051a1
DT		 438 code = atkbd_compat_scancode(atkbd, code);
439
440 if (atkbd->emul && --atkbd->emul)
441 goto out;
442
443 keycode = atkbd->keycode[code];
1da177e4 444
0ae051a1
DT		 445 if (keycode != ATKBD_KEY_NULL)
446 input_event(dev, EV_MSC, MSC_SCAN, code);
1da177e4 447
0ae051a1 448 switch (keycode) {
a9a1f9c3
DT		 449 case ATKBD_KEY_NULL:
450 break;
451 case ATKBD_KEY_UNKNOWN:
452 dev_warn(&serio->dev,
453 "Unknown key %s (%s set %d, code %#x on %s).\n",
454 atkbd->release ? "released" : "pressed",
455 atkbd->translated ? "translated" : "raw",
456 atkbd->set, code, serio->phys);
457 dev_warn(&serio->dev,
458 "Use 'setkeycodes %s%02x <keycode>' to make it known.\n",
459 code & 0x80 ? "e0" : "", code & 0x7f);
460 input_sync(dev);
461 break;
462 case ATKBD_SCR_1:
463 scroll = 1;
464 break;
465 case ATKBD_SCR_2:
466 scroll = 2;
467 break;
468 case ATKBD_SCR_4:
469 scroll = 4;
470 break;
471 case ATKBD_SCR_8:
472 scroll = 8;
473 break;
474 case ATKBD_SCR_CLICK:
475 click = !atkbd->release;
476 break;
477 case ATKBD_SCR_LEFT:
478 hscroll = -1;
479 break;
480 case ATKBD_SCR_RIGHT:
481 hscroll = 1;
482 break;
483 default:
484 if (atkbd->release) {
485 value = 0;
486 atkbd->last = 0;
487 } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) {
488 /* Workaround Toshiba laptop multiple keypress */
489 value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2;
490 } else {
491 value = 1;
492 atkbd->last = code;
493 atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2;
494 }
495
496 input_event(dev, EV_KEY, keycode, value);
497 input_sync(dev);
0ae051a1 498
a9a1f9c3
DT		 499 if (value && test_bit(code, atkbd->force_release_mask)) {
500 input_report_key(dev, keycode, 0);
501 input_sync(dev);
502 }
1da177e4
LT		 503 }
504
505 if (atkbd->scroll) {
1da177e4 506 if (click != -1)
0ae051a1 507 input_report_key(dev, BTN_MIDDLE, click);
a9a1f9c3
DT		 508 input_report_rel(dev, REL_WHEEL,
509 atkbd->release ? -scroll : scroll);
0ae051a1
DT		 510 input_report_rel(dev, REL_HWHEEL, hscroll);
511 input_sync(dev);
1da177e4
LT		 512 }
513
a9a1f9c3 514 atkbd->release = false;
1da177e4
LT		 515out:
516 return IRQ_HANDLED;
517}
518
3d0f0fa0 519static int atkbd_set_repeat_rate(struct atkbd *atkbd)
1da177e4 520{
1da177e4
LT		 521 const short period[32] =
522 { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125,
523 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 };
524 const short delay[4] =
525 { 250, 500, 750, 1000 };
0d4c8597 526
3d0f0fa0
DT		 527 struct input_dev *dev = atkbd->dev;
528 unsigned char param;
529 int i = 0, j = 0;
530
531 while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD])
532 i++;
533 dev->rep[REP_PERIOD] = period[i];
534
8ea371fb 535 while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY])
3d0f0fa0
DT		 536 j++;
537 dev->rep[REP_DELAY] = delay[j];
538
539 param = i | (j << 5);
540 return ps2_command(&atkbd->ps2dev, &param, ATKBD_CMD_SETREP);
541}
542
543static int atkbd_set_leds(struct atkbd *atkbd)
544{
0d4c8597 545 struct input_dev *dev = atkbd->dev;
1da177e4 546 unsigned char param[2];
1da177e4 547
3d0f0fa0
DT		 548 param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
549 | (test_bit(LED_NUML, dev->led) ? 2 : 0)
550 | (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
551 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
552 return -1;
0d4c8597 553
3d0f0fa0
DT		 554 if (atkbd->extra) {
555 param[0] = 0;
556 param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
557 | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
558 | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
559 | (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
560 | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
561 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS))
562 return -1;
0d4c8597
DT		 563 }
564
3d0f0fa0
DT		 565 return 0;
566}
567
568/*
569 * atkbd_event_work() is used to complete processing of events that
570 * can not be processed by input_event() which is often called from
571 * interrupt context.
572 */
573
65f27f38 574static void atkbd_event_work(struct work_struct *work)
3d0f0fa0 575{
da4249c9 576 struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work);
3d0f0fa0
DT		 577
578 mutex_lock(&atkbd->event_mutex);
579
94dfb0d6
DT		 580 if (!atkbd->enabled) {
581 /*
582 * Serio ports are resumed asynchronously so while driver core
583 * thinks that device is already fully operational in reality
584 * it may not be ready yet. In this case we need to keep
585 * rescheduling till reconnect completes.
586 */
587 schedule_delayed_work(&atkbd->event_work,
588 msecs_to_jiffies(100));
589 } else {
590 if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask))
591 atkbd_set_leds(atkbd);
592
593 if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask))
594 atkbd_set_repeat_rate(atkbd);
595 }
0d4c8597 596
33d3f07a 597 mutex_unlock(&atkbd->event_mutex);
0d4c8597
DT		 598}
599
da4249c9
DT		 600/*
601 * Schedule switch for execution. We need to throttle requests,
602 * otherwise keyboard may become unresponsive.
603 */
604static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit)
605{
606 unsigned long delay = msecs_to_jiffies(50);
607
608 if (time_after(jiffies, atkbd->event_jiffies + delay))
609 delay = 0;
610
611 atkbd->event_jiffies = jiffies;
612 set_bit(event_bit, &atkbd->event_mask);
613 wmb();
614 schedule_delayed_work(&atkbd->event_work, delay);
615}
616
0d4c8597
DT		 617/*
618 * Event callback from the input module. Events that change the state of
619 * the hardware are processed here. If action can not be performed in
620 * interrupt context it is offloaded to atkbd_event_work.
621 */
622
da4249c9
DT		 623static int atkbd_event(struct input_dev *dev,
624 unsigned int type, unsigned int code, int value)
0d4c8597 625{
b356872f 626 struct atkbd *atkbd = input_get_drvdata(dev);
0d4c8597 627
1da177e4
LT		 628 if (!atkbd->write)
629 return -1;
630
631 switch (type) {
632
a9a1f9c3
DT		 633 case EV_LED:
634 atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT);
635 return 0;
1da177e4 636
a9a1f9c3
DT		 637 case EV_REP:
638 if (!atkbd->softrepeat)
639 atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT);
640 return 0;
1da177e4 641
a9a1f9c3
DT		 642 default:
643 return -1;
644 }
1da177e4
LT		 645}
646
647/*
648 * atkbd_enable() signals that interrupt handler is allowed to
649 * generate input events.
650 */
651
652static inline void atkbd_enable(struct atkbd *atkbd)
653{
654 serio_pause_rx(atkbd->ps2dev.serio);
a9a1f9c3 655 atkbd->enabled = true;
1da177e4
LT		 656 serio_continue_rx(atkbd->ps2dev.serio);
657}
658
659/*
660 * atkbd_disable() tells input handler that all incoming data except
661 * for ACKs and command response should be dropped.
662 */
663
664static inline void atkbd_disable(struct atkbd *atkbd)
665{
666 serio_pause_rx(atkbd->ps2dev.serio);
a9a1f9c3 667 atkbd->enabled = false;
1da177e4
LT		 668 serio_continue_rx(atkbd->ps2dev.serio);
669}
670
671/*
672 * atkbd_probe() probes for an AT keyboard on a serio port.
673 */
674
675static int atkbd_probe(struct atkbd *atkbd)
676{
677 struct ps2dev *ps2dev = &atkbd->ps2dev;
678 unsigned char param[2];
679
680/*
681 * Some systems, where the bit-twiddling when testing the io-lines of the
682 * controller may confuse the keyboard need a full reset of the keyboard. On
683 * these systems the BIOS also usually doesn't do it for us.
684 */
685
686 if (atkbd_reset)
687 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT))
a9a1f9c3
DT		 688 dev_warn(&ps2dev->serio->dev,
689 "keyboard reset failed on %s\n",
690 ps2dev->serio->phys);
1da177e4
LT		 691
692/*
693 * Then we check the keyboard ID. We should get 0xab83 under normal conditions.
694 * Some keyboards report different values, but the first byte is always 0xab or
695 * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
696 * should make sure we don't try to set the LEDs on it.
697 */
698
699 param[0] = param[1] = 0xa5; /* initialize with invalid values */
700 if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) {
701
702/*
703 * If the get ID command failed, we check if we can at least set the LEDs on
704 * the keyboard. This should work on every keyboard out there. It also turns
705 * the LEDs off, which we want anyway.
706 */
707 param[0] = 0;
708 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
709 return -1;
710 atkbd->id = 0xabba;
711 return 0;
712 }
713
9807879b 714 if (!ps2_is_keyboard_id(param[0]))
1da177e4
LT		 715 return -1;
716
717 atkbd->id = (param[0] << 8) | param[1];
718
719 if (atkbd->id == 0xaca1 && atkbd->translated) {
a9a1f9c3
DT		 720 dev_err(&ps2dev->serio->dev,
721 "NCD terminal keyboards are only supported on non-translating controlelrs. "
722 "Use i8042.direct=1 to disable translation.\n");
1da177e4
LT		 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
a9a1f9c3 740 atkbd->extra = false;
1da177e4
LT		 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)) {
a9a1f9c3 759 atkbd->extra = true;
1da177e4
LT		 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)) {
a9a1f9c3
DT		 824 dev_err(&ps2dev->serio->dev,
825 "Failed to enable keyboard on %s\n",
1da177e4
LT		 826 ps2dev->serio->phys);
827 return -1;
828 }
829
830 return 0;
831}
832
833/*
834 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
835 * reboot.
836 */
837
838static void atkbd_cleanup(struct serio *serio)
839{
840 struct atkbd *atkbd = serio_get_drvdata(serio);
57f5b159
DT		 841
842 atkbd_disable(atkbd);
1da177e4
LT		 843 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_BAT);
844}
845
846
847/*
848 * atkbd_disconnect() closes and frees.
849 */
850
851static void atkbd_disconnect(struct serio *serio)
852{
853 struct atkbd *atkbd = serio_get_drvdata(serio);
854
855 atkbd_disable(atkbd);
856
857 /* make sure we don't have a command in flight */
d6d79a78 858 cancel_delayed_work_sync(&atkbd->event_work);
1da177e4 859
86255d9d 860 sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
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);
33d3f07a 1093 mutex_init(&atkbd->event_mutex);
1da177e4
LT		 1094
1095 switch (serio->id.type) {
1096
a9a1f9c3
DT		 1097 case SERIO_8042_XL:
1098 atkbd->translated = true;
1099 /* Fall through */
1100
1101 case SERIO_8042:
1102 if (serio->write)
1103 atkbd->write = true;
1104 break;
1da177e4
LT		 1105 }
1106
1107 atkbd->softraw = atkbd_softraw;
1108 atkbd->softrepeat = atkbd_softrepeat;
1109 atkbd->scroll = atkbd_scroll;
1110
1da177e4 1111 if (atkbd->softrepeat)
a9a1f9c3 1112 atkbd->softraw = true;
1da177e4
LT		 1113
1114 serio_set_drvdata(serio, atkbd);
1115
1116 err = serio_open(serio, drv);
3c42f0c3 1117 if (err)
2b03b60e 1118 goto fail2;
1da177e4
LT		 1119
1120 if (atkbd->write) {
1121
1122 if (atkbd_probe(atkbd)) {
3c42f0c3 1123 err = -ENODEV;
2b03b60e 1124 goto fail3;
1da177e4
LT		 1125 }
1126
1127 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
fc0eb28c 1128 atkbd_reset_state(atkbd);
1da177e4
LT		 1129 atkbd_activate(atkbd);
1130
1131 } else {
1132 atkbd->set = 2;
1133 atkbd->id = 0xab00;
1134 }
1135
1da177e4
LT		 1136 atkbd_set_keycode_table(atkbd);
1137 atkbd_set_device_attrs(atkbd);
1138
2b03b60e
DT		 1139 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group);
1140 if (err)
1141 goto fail3;
1da177e4
LT		 1142
1143 atkbd_enable(atkbd);
1144
2b03b60e
DT		 1145 err = input_register_device(atkbd->dev);
1146 if (err)
1147 goto fail4;
1da177e4
LT		 1148
1149 return 0;
3c42f0c3 1150
2b03b60e
DT		 1151 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
1152 fail3: serio_close(serio);
1153 fail2: serio_set_drvdata(serio, NULL);
1154 fail1: input_free_device(dev);
3c42f0c3
DT		 1155 kfree(atkbd);
1156 return err;
1da177e4
LT		 1157}
1158
1159/*
1160 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1161 * most likely called on resume.
1162 */
1163
1164static int atkbd_reconnect(struct serio *serio)
1165{
1166 struct atkbd *atkbd = serio_get_drvdata(serio);
1167 struct serio_driver *drv = serio->drv;
1da177e4
LT		 1168
1169 if (!atkbd || !drv) {
a9a1f9c3
DT		 1170 dev_dbg(&serio->dev,
1171 "reconnect request, but serio is disconnected, ignoring...\n");
1da177e4
LT		 1172 return -1;
1173 }
1174
1175 atkbd_disable(atkbd);
1176
1177 if (atkbd->write) {
1da177e4
LT		 1178 if (atkbd_probe(atkbd))
1179 return -1;
1180 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
1181 return -1;
1182
1183 atkbd_activate(atkbd);
d4119bda
DT		 1184
1185 /*
1186 * Restore LED state and repeat rate. While input core
1187 * will do this for us at resume time reconnect may happen
1188 * because user requested it via sysfs or simply because
1189 * keyboard was unplugged and plugged in again so we need
1190 * to do it ourselves here.
1191 */
1192 atkbd_set_leds(atkbd);
1193 if (!atkbd->softrepeat)
1194 atkbd_set_repeat_rate(atkbd);
1195
1da177e4
LT		 1196 }
1197
1198 atkbd_enable(atkbd);
1199
1200 return 0;
1201}
1202
1203static struct serio_device_id atkbd_serio_ids[] = {
1204 {
1205 .type = SERIO_8042,
1206 .proto = SERIO_ANY,
1207 .id = SERIO_ANY,
1208 .extra = SERIO_ANY,
1209 },
1210 {
1211 .type = SERIO_8042_XL,
1212 .proto = SERIO_ANY,
1213 .id = SERIO_ANY,
1214 .extra = SERIO_ANY,
1215 },
1216 {
1217 .type = SERIO_RS232,
1218 .proto = SERIO_PS2SER,
1219 .id = SERIO_ANY,
1220 .extra = SERIO_ANY,
1221 },
1222 { 0 }
1223};
1224
1225MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1226
1227static struct serio_driver atkbd_drv = {
1228 .driver = {
1229 .name = "atkbd",
1230 },
1231 .description = DRIVER_DESC,
1232 .id_table = atkbd_serio_ids,
1233 .interrupt = atkbd_interrupt,
1234 .connect = atkbd_connect,
1235 .reconnect = atkbd_reconnect,
1236 .disconnect = atkbd_disconnect,
1237 .cleanup = atkbd_cleanup,
1238};
1239
1240static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1241 ssize_t (*handler)(struct atkbd *, char *))
1242{
1243 struct serio *serio = to_serio_port(dev);
1244 int retval;
1245
1246 retval = serio_pin_driver(serio);
1247 if (retval)
1248 return retval;
1249
1250 if (serio->drv != &atkbd_drv) {
1251 retval = -ENODEV;
1252 goto out;
1253 }
1254
1255 retval = handler((struct atkbd *)serio_get_drvdata(serio), buf);
1256
1257out:
1258 serio_unpin_driver(serio);
1259 return retval;
1260}
1261
1262static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1263 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1264{
1265 struct serio *serio = to_serio_port(dev);
1266 struct atkbd *atkbd;
1267 int retval;
1268
1269 retval = serio_pin_driver(serio);
1270 if (retval)
1271 return retval;
1272
1273 if (serio->drv != &atkbd_drv) {
1274 retval = -ENODEV;
1275 goto out;
1276 }
1277
1278 atkbd = serio_get_drvdata(serio);
1279 atkbd_disable(atkbd);
1280 retval = handler(atkbd, buf, count);
1281 atkbd_enable(atkbd);
1282
1283out:
1284 serio_unpin_driver(serio);
1285 return retval;
1286}
1287
1288static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1289{
1290 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1291}
1292
1293static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1294{
2b03b60e 1295 struct input_dev *old_dev, *new_dev;
1da177e4 1296 unsigned long value;
2b03b60e 1297 int err;
a9a1f9c3
DT		 1298 bool old_extra;
1299 unsigned char old_set;
1da177e4
LT		 1300
1301 if (!atkbd->write)
1302 return -EIO;
1303
160f1fef 1304 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1305 return -EINVAL;
1306
1307 if (atkbd->extra != value) {
3c42f0c3
DT		 1308 /*
1309 * Since device's properties will change we need to
2b03b60e
DT		 1310 * unregister old device. But allocate and register
1311 * new one first to make sure we have it.
3c42f0c3 1312 */
2b03b60e
DT		 1313 old_dev = atkbd->dev;
1314 old_extra = atkbd->extra;
1315 old_set = atkbd->set;
1316
1317 new_dev = input_allocate_device();
1318 if (!new_dev)
3c42f0c3 1319 return -ENOMEM;
2b03b60e 1320
3c42f0c3 1321 atkbd->dev = new_dev;
1da177e4 1322 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
fc0eb28c 1323 atkbd_reset_state(atkbd);
1da177e4 1324 atkbd_activate(atkbd);
2b03b60e 1325 atkbd_set_keycode_table(atkbd);
1da177e4 1326 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1327
1328 err = input_register_device(atkbd->dev);
1329 if (err) {
1330 input_free_device(new_dev);
1331
1332 atkbd->dev = old_dev;
1333 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1334 atkbd_set_keycode_table(atkbd);
1335 atkbd_set_device_attrs(atkbd);
1336
1337 return err;
1338 }
1339 input_unregister_device(old_dev);
1340
1da177e4
LT		 1341 }
1342 return count;
1343}
1344
1ba36e11
DT		 1345static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf)
1346{
1347 size_t len = bitmap_scnlistprintf(buf, PAGE_SIZE - 2,
1348 atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1349
1350 buf[len++] = '\n';
1351 buf[len] = '\0';
1352
1353 return len;
1354}
1355
1356static ssize_t atkbd_set_force_release(struct atkbd *atkbd,
1357 const char *buf, size_t count)
1358{
1359 /* 64 bytes on stack should be acceptable */
1360 DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE);
1361 int err;
1362
1363 err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE);
1364 if (err)
1365 return err;
1366
1367 memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask));
1368 return count;
1369}
1370
1371
1da177e4
LT		 1372static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1373{
1374 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1375}
1376
1377static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1378{
2b03b60e 1379 struct input_dev *old_dev, *new_dev;
1da177e4 1380 unsigned long value;
2b03b60e 1381 int err;
a9a1f9c3 1382 bool old_scroll;
1da177e4 1383
160f1fef 1384 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1385 return -EINVAL;
1386
1387 if (atkbd->scroll != value) {
2b03b60e
DT		 1388 old_dev = atkbd->dev;
1389 old_scroll = atkbd->scroll;
1390
1391 new_dev = input_allocate_device();
1392 if (!new_dev)
3c42f0c3 1393 return -ENOMEM;
2b03b60e 1394
3c42f0c3 1395 atkbd->dev = new_dev;
1da177e4
LT		 1396 atkbd->scroll = value;
1397 atkbd_set_keycode_table(atkbd);
1398 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1399
1400 err = input_register_device(atkbd->dev);
1401 if (err) {
1402 input_free_device(new_dev);
1403
1404 atkbd->scroll = old_scroll;
1405 atkbd->dev = old_dev;
1406 atkbd_set_keycode_table(atkbd);
1407 atkbd_set_device_attrs(atkbd);
1408
1409 return err;
1410 }
1411 input_unregister_device(old_dev);
1da177e4
LT		 1412 }
1413 return count;
1414}
1415
1416static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1417{
1418 return sprintf(buf, "%d\n", atkbd->set);
1419}
1420
1421static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1422{
2b03b60e 1423 struct input_dev *old_dev, *new_dev;
1da177e4 1424 unsigned long value;
2b03b60e 1425 int err;
a9a1f9c3
DT		 1426 unsigned char old_set;
1427 bool old_extra;
1da177e4
LT		 1428
1429 if (!atkbd->write)
1430 return -EIO;
1431
160f1fef 1432 if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3))
1da177e4
LT		 1433 return -EINVAL;
1434
1435 if (atkbd->set != value) {
2b03b60e
DT		 1436 old_dev = atkbd->dev;
1437 old_extra = atkbd->extra;
1438 old_set = atkbd->set;
1439
1440 new_dev = input_allocate_device();
1441 if (!new_dev)
3c42f0c3 1442 return -ENOMEM;
2b03b60e 1443
3c42f0c3 1444 atkbd->dev = new_dev;
1da177e4 1445 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
d4119bda 1446 atkbd_reset_state(atkbd);
1da177e4
LT		 1447 atkbd_activate(atkbd);
1448 atkbd_set_keycode_table(atkbd);
1449 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1450
1451 err = input_register_device(atkbd->dev);
1452 if (err) {
1453 input_free_device(new_dev);
1454
1455 atkbd->dev = old_dev;
1456 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1457 atkbd_set_keycode_table(atkbd);
1458 atkbd_set_device_attrs(atkbd);
1459
1460 return err;
1461 }
1462 input_unregister_device(old_dev);
1da177e4
LT		 1463 }
1464 return count;
1465}
1466
1467static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1468{
1469 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1470}
1471
1472static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1473{
2b03b60e 1474 struct input_dev *old_dev, *new_dev;
1da177e4 1475 unsigned long value;
2b03b60e 1476 int err;
a9a1f9c3 1477 bool old_softrepeat, old_softraw;
1da177e4
LT		 1478
1479 if (!atkbd->write)
1480 return -EIO;
1481
160f1fef 1482 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1483 return -EINVAL;
1484
1485 if (atkbd->softrepeat != value) {
2b03b60e
DT		 1486 old_dev = atkbd->dev;
1487 old_softrepeat = atkbd->softrepeat;
1488 old_softraw = atkbd->softraw;
1489
1490 new_dev = input_allocate_device();
1491 if (!new_dev)
3c42f0c3 1492 return -ENOMEM;
2b03b60e 1493
3c42f0c3 1494 atkbd->dev = new_dev;
1da177e4
LT		 1495 atkbd->softrepeat = value;
1496 if (atkbd->softrepeat)
a9a1f9c3 1497 atkbd->softraw = true;
1da177e4 1498 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1499
1500 err = input_register_device(atkbd->dev);
1501 if (err) {
1502 input_free_device(new_dev);
1503
1504 atkbd->dev = old_dev;
1505 atkbd->softrepeat = old_softrepeat;
1506 atkbd->softraw = old_softraw;
1507 atkbd_set_device_attrs(atkbd);
1508
1509 return err;
1510 }
1511 input_unregister_device(old_dev);
1da177e4 1512 }
1da177e4
LT		 1513 return count;
1514}
1515
1516
1517static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1518{
1519 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1520}
1521
1522static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1523{
2b03b60e 1524 struct input_dev *old_dev, *new_dev;
1da177e4 1525 unsigned long value;
2b03b60e 1526 int err;
a9a1f9c3 1527 bool old_softraw;
1da177e4 1528
160f1fef 1529 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1530 return -EINVAL;
1531
1532 if (atkbd->softraw != value) {
2b03b60e
DT		 1533 old_dev = atkbd->dev;
1534 old_softraw = atkbd->softraw;
1535
1536 new_dev = input_allocate_device();
1537 if (!new_dev)
3c42f0c3 1538 return -ENOMEM;
2b03b60e 1539
3c42f0c3 1540 atkbd->dev = new_dev;
1da177e4
LT		 1541 atkbd->softraw = value;
1542 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1543
1544 err = input_register_device(atkbd->dev);
1545 if (err) {
1546 input_free_device(new_dev);
1547
1548 atkbd->dev = old_dev;
1549 atkbd->softraw = old_softraw;
1550 atkbd_set_device_attrs(atkbd);
1551
1552 return err;
1553 }
1554 input_unregister_device(old_dev);
1da177e4
LT		 1555 }
1556 return count;
1557}
1558
86255d9d
DT		 1559static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1560{
1561 return sprintf(buf, "%lu\n", atkbd->err_count);
1562}
1563
39191698 1564static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
554101e3 1565{
39191698
DM		 1566 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1567 atkbd_platform_fixup_data = id->driver_data;
1568
554101e3
GN		 1569 return 0;
1570}
1571
e5713069
JL		 1572static int __init atkbd_setup_scancode_fixup(const struct dmi_system_id *id)
1573{
1574 atkbd_platform_scancode_fixup = id->driver_data;
1575
1576 return 0;
1577}
1578
c45fc81e 1579static const struct dmi_system_id atkbd_dmi_quirk_table[] __initconst = {
554101e3 1580 {
554101e3
GN		 1581 .matches = {
1582 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
61579ba8 1583 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
554101e3 1584 },
39191698
DM		 1585 .callback = atkbd_setup_forced_release,
1586 .driver_data = atkbd_dell_laptop_forced_release_keys,
554101e3 1587 },
2a3ec326 1588 {
2a3ec326
MG		 1589 .matches = {
1590 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1591 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1592 },
39191698
DM		 1593 .callback = atkbd_setup_forced_release,
1594 .driver_data = atkbd_dell_laptop_forced_release_keys,
2a3ec326 1595 },
5a54c011 1596 {
5a54c011
JK		 1597 .matches = {
1598 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1599 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1600 },
39191698
DM		 1601 .callback = atkbd_setup_forced_release,
1602 .driver_data = atkbd_hp_forced_release_keys,
5a54c011 1603 },
181f6382 1604 {
181f6382
RL		 1605 .matches = {
1606 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1607 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1608 },
39191698 1609 .callback = atkbd_setup_forced_release,
000c2a35 1610 .driver_data = atkbd_volume_forced_release_keys,
181f6382 1611 },
2bcaa6a4 1612 {
2bcaa6a4
DA		 1613 .matches = {
1614 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1615 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"),
1616 },
1617 .callback = atkbd_setup_forced_release,
000c2a35 1618 .driver_data = atkbd_volume_forced_release_keys,
2bcaa6a4
DA		 1619 },
1620 {
2bcaa6a4
DA		 1621 .matches = {
1622 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1623 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"),
1624 },
1625 .callback = atkbd_setup_forced_release,
000c2a35 1626 .driver_data = atkbd_volume_forced_release_keys,
2bcaa6a4
DA		 1627 },
1628 {
2bcaa6a4
DA		 1629 .matches = {
1630 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1631 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"),
1632 },
1633 .callback = atkbd_setup_forced_release,
000c2a35 1634 .driver_data = atkbd_volume_forced_release_keys,
2bcaa6a4 1635 },
a8215b81 1636 {
c45fc81e 1637 /* Inventec Symphony */
a8215b81
MG		 1638 .matches = {
1639 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1640 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1641 },
39191698 1642 .callback = atkbd_setup_forced_release,
000c2a35 1643 .driver_data = atkbd_volume_forced_release_keys,
a8215b81 1644 },
4200844b 1645 {
c45fc81e 1646 /* Samsung NC10 */
4200844b
SH		 1647 .matches = {
1648 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1649 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1650 },
39191698
DM		 1651 .callback = atkbd_setup_forced_release,
1652 .driver_data = atkbd_samsung_forced_release_keys,
4200844b 1653 },
e04126c7 1654 {
c45fc81e 1655 /* Samsung NC20 */
e04126c7
BC		 1656 .matches = {
1657 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1658 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
1659 },
1660 .callback = atkbd_setup_forced_release,
1661 .driver_data = atkbd_samsung_forced_release_keys,
1662 },
157f3a3e 1663 {
c45fc81e 1664 /* Samsung SQ45S70S */
157f3a3e
DT		 1665 .matches = {
1666 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1667 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
1668 },
1669 .callback = atkbd_setup_forced_release,
1670 .driver_data = atkbd_samsung_forced_release_keys,
1671 },
adcb523e 1672 {
c45fc81e 1673 /* Fujitsu Amilo PA 1510 */
adcb523e
DM		 1674 .matches = {
1675 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1676 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1677 },
1678 .callback = atkbd_setup_forced_release,
000c2a35 1679 .driver_data = atkbd_volume_forced_release_keys,
adcb523e 1680 },
f0a14de2 1681 {
c45fc81e 1682 /* Fujitsu Amilo Pi 3525 */
f0a14de2
SD		 1683 .matches = {
1684 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1685 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"),
1686 },
1687 .callback = atkbd_setup_forced_release,
1688 .driver_data = atkbd_amilo_pi3525_forced_release_keys,
1689 },
9166d0f6 1690 {
c45fc81e 1691 /* Fujitsu Amilo Xi 3650 */
9166d0f6
AB		 1692 .matches = {
1693 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1694 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"),
1695 },
1696 .callback = atkbd_setup_forced_release,
1697 .driver_data = atkbd_amilo_xi3650_forced_release_keys,
1698 },
032e46cb 1699 {
032e46cb
JY		 1700 .matches = {
1701 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"),
1702 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"),
1703 },
1704 .callback = atkbd_setup_forced_release,
1705 .driver_data = atkdb_soltech_ta12_forced_release_keys,
1706 },
e5713069 1707 {
c45fc81e 1708 /* OQO Model 01+ */
e5713069
JL		 1709 .matches = {
1710 DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
1711 DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
1712 },
1713 .callback = atkbd_setup_scancode_fixup,
1714 .driver_data = atkbd_oqo_01plus_scancode_fixup,
1715 },
554101e3
GN		 1716 { }
1717};
1da177e4
LT		 1718
1719static int __init atkbd_init(void)
1720{
554101e3
GN		 1721 dmi_check_system(atkbd_dmi_quirk_table);
1722
153a9df0 1723 return serio_register_driver(&atkbd_drv);
1da177e4
LT		 1724}
1725
1726static void __exit atkbd_exit(void)
1727{
1728 serio_unregister_driver(&atkbd_drv);
1729}
1730
1731module_init(atkbd_init);
1732module_exit(atkbd_exit);
Clone of davem's net-next-2.6 tree