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trivial: fix then -> than typos in comments and documentation
[GitHub/mt8127/android_kernel_alcatel_ttab.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
68 * are loadable via an userland utility.
69 */
70
f6d65610 71static const unsigned short atkbd_set2_keycode[512] = {
1da177e4
LT		 72
73#ifdef CONFIG_KEYBOARD_ATKBD_HP_KEYCODES
74
75/* XXX: need a more general approach */
76
77#include "hpps2atkbd.h" /* include the keyboard scancodes */
78
79#else
80 0, 67, 65, 63, 61, 59, 60, 88, 0, 68, 66, 64, 62, 15, 41,117,
81 0, 56, 42, 93, 29, 16, 2, 0, 0, 0, 44, 31, 30, 17, 3, 0,
82 0, 46, 45, 32, 18, 5, 4, 95, 0, 57, 47, 33, 20, 19, 6,183,
83 0, 49, 48, 35, 34, 21, 7,184, 0, 0, 50, 36, 22, 8, 9,185,
84 0, 51, 37, 23, 24, 11, 10, 0, 0, 52, 53, 38, 39, 25, 12, 0,
85 0, 89, 40, 0, 26, 13, 0, 0, 58, 54, 28, 27, 0, 43, 0, 85,
86 0, 86, 91, 90, 92, 0, 14, 94, 0, 79,124, 75, 71,121, 0, 0,
87 82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99,
88
89 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
90 217,100,255, 0, 97,165, 0, 0,156, 0, 0, 0, 0, 0, 0,125,
91 173,114, 0,113, 0, 0, 0,126,128, 0, 0,140, 0, 0, 0,127,
72a42f24 92 159, 0,115, 0,164, 0, 0,116,158, 0,172,166, 0, 0, 0,142,
1da177e4
LT		 93 157, 0, 0, 0, 0, 0, 0, 0,155, 0, 98, 0, 0,163, 0, 0,
94 226, 0, 0, 0, 0, 0, 0, 0, 0,255, 96, 0, 0, 0,143, 0,
95 0, 0, 0, 0, 0, 0, 0, 0, 0,107, 0,105,102, 0, 0,112,
96 110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119, 0,
97
98 0, 0, 0, 65, 99,
99#endif
100};
101
f6d65610 102static const unsigned short atkbd_set3_keycode[512] = {
1da177e4
LT		 103
104 0, 0, 0, 0, 0, 0, 0, 59, 1,138,128,129,130, 15, 41, 60,
105 131, 29, 42, 86, 58, 16, 2, 61,133, 56, 44, 31, 30, 17, 3, 62,
106 134, 46, 45, 32, 18, 5, 4, 63,135, 57, 47, 33, 20, 19, 6, 64,
107 136, 49, 48, 35, 34, 21, 7, 65,137,100, 50, 36, 22, 8, 9, 66,
108 125, 51, 37, 23, 24, 11, 10, 67,126, 52, 53, 38, 39, 25, 12, 68,
109 113,114, 40, 43, 26, 13, 87, 99, 97, 54, 28, 27, 43, 43, 88, 70,
110 108,105,119,103,111,107, 14,110, 0, 79,106, 75, 71,109,102,104,
111 82, 83, 80, 76, 77, 72, 69, 98, 0, 96, 81, 0, 78, 73, 55,183,
112
113 184,185,186,187, 74, 94, 92, 93, 0, 0, 0,125,126,127,112, 0,
72a42f24 114 0,139,172,163,165,115,152,172,166,140,160,154,113,114,167,168,
1da177e4
LT		 115 148,149,147,140
116};
117
f6d65610 118static const unsigned short atkbd_unxlate_table[128] = {
1da177e4
LT		 119 0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13,
120 21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27,
121 35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42,
122 50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88, 5, 6, 4, 12, 3,
123 11, 2, 10, 1, 9,119,126,108,117,125,123,107,115,116,121,105,
124 114,122,112,113,127, 96, 97,120, 7, 15, 23, 31, 39, 47, 55, 63,
125 71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111,
126 19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110
127};
128
129#define ATKBD_CMD_SETLEDS 0x10ed
130#define ATKBD_CMD_GSCANSET 0x11f0
131#define ATKBD_CMD_SSCANSET 0x10f0
132#define ATKBD_CMD_GETID 0x02f2
133#define ATKBD_CMD_SETREP 0x10f3
134#define ATKBD_CMD_ENABLE 0x00f4
135#define ATKBD_CMD_RESET_DIS 0x00f5
136#define ATKBD_CMD_SETALL_MBR 0x00fa
137#define ATKBD_CMD_RESET_BAT 0x02ff
138#define ATKBD_CMD_RESEND 0x00fe
139#define ATKBD_CMD_EX_ENABLE 0x10ea
140#define ATKBD_CMD_EX_SETLEDS 0x20eb
141#define ATKBD_CMD_OK_GETID 0x02e8
142
143#define ATKBD_RET_ACK 0xfa
144#define ATKBD_RET_NAK 0xfe
145#define ATKBD_RET_BAT 0xaa
146#define ATKBD_RET_EMUL0 0xe0
147#define ATKBD_RET_EMUL1 0xe1
148#define ATKBD_RET_RELEASE 0xf0
0ae051a1
DT		 149#define ATKBD_RET_HANJA 0xf1
150#define ATKBD_RET_HANGEUL 0xf2
1da177e4
LT		 151#define ATKBD_RET_ERR 0xff
152
153#define ATKBD_KEY_UNKNOWN 0
154#define ATKBD_KEY_NULL 255
155
156#define ATKBD_SCR_1 254
157#define ATKBD_SCR_2 253
158#define ATKBD_SCR_4 252
159#define ATKBD_SCR_8 251
160#define ATKBD_SCR_CLICK 250
161#define ATKBD_SCR_LEFT 249
162#define ATKBD_SCR_RIGHT 248
163
f6d65610 164#define ATKBD_SPECIAL ATKBD_SCR_RIGHT
1da177e4 165
0d4c8597
DT		 166#define ATKBD_LED_EVENT_BIT 0
167#define ATKBD_REP_EVENT_BIT 1
168
0ae051a1
DT		 169#define ATKBD_XL_ERR 0x01
170#define ATKBD_XL_BAT 0x02
171#define ATKBD_XL_ACK 0x04
172#define ATKBD_XL_NAK 0x08
173#define ATKBD_XL_HANGEUL 0x10
174#define ATKBD_XL_HANJA 0x20
175
f6d65610 176static const struct {
1da177e4
LT		 177 unsigned char keycode;
178 unsigned char set2;
179} atkbd_scroll_keys[] = {
180 { ATKBD_SCR_1, 0xc5 },
5212dd58
VP		 181 { ATKBD_SCR_2, 0x9d },
182 { ATKBD_SCR_4, 0xa4 },
183 { ATKBD_SCR_8, 0x9b },
1da177e4
LT		 184 { ATKBD_SCR_CLICK, 0xe0 },
185 { ATKBD_SCR_LEFT, 0xcb },
186 { ATKBD_SCR_RIGHT, 0xd2 },
187};
188
189/*
190 * The atkbd control structure
191 */
192
193struct atkbd {
194
3c42f0c3
DT		 195 struct ps2dev ps2dev;
196 struct input_dev *dev;
1da177e4
LT		 197
198 /* Written only during init */
199 char name[64];
200 char phys[32];
1da177e4
LT		 201
202 unsigned short id;
f6d65610 203 unsigned short keycode[512];
554101e3 204 DECLARE_BITMAP(force_release_mask, 512);
1da177e4
LT		 205 unsigned char set;
206 unsigned char translated;
207 unsigned char extra;
208 unsigned char write;
209 unsigned char softrepeat;
210 unsigned char softraw;
211 unsigned char scroll;
212 unsigned char enabled;
213
214 /* Accessed only from interrupt */
215 unsigned char emul;
216 unsigned char resend;
217 unsigned char release;
0ae051a1 218 unsigned long xl_bit;
1da177e4
LT		 219 unsigned int last;
220 unsigned long time;
86255d9d 221 unsigned long err_count;
0d4c8597 222
da4249c9
DT		 223 struct delayed_work event_work;
224 unsigned long event_jiffies;
33d3f07a 225 struct mutex event_mutex;
0d4c8597 226 unsigned long event_mask;
1da177e4
LT		 227};
228
554101e3
GN		 229/*
230 * System-specific ketymap fixup routine
231 */
232static void (*atkbd_platform_fixup)(struct atkbd *);
233
1da177e4
LT		 234static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
235 ssize_t (*handler)(struct atkbd *, char *));
236static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
237 ssize_t (*handler)(struct atkbd *, const char *, size_t));
238#define ATKBD_DEFINE_ATTR(_name) \
239static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
240static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \
86255d9d
DT		 241static ssize_t atkbd_do_show_##_name(struct device *d, \
242 struct device_attribute *attr, char *b) \
1da177e4
LT		 243{ \
244 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
245} \
86255d9d
DT		 246static ssize_t atkbd_do_set_##_name(struct device *d, \
247 struct device_attribute *attr, const char *b, size_t s) \
1da177e4
LT		 248{ \
249 return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \
250} \
d083e906 251static struct device_attribute atkbd_attr_##_name = \
1da177e4
LT		 252 __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name);
253
254ATKBD_DEFINE_ATTR(extra);
255ATKBD_DEFINE_ATTR(scroll);
256ATKBD_DEFINE_ATTR(set);
257ATKBD_DEFINE_ATTR(softrepeat);
258ATKBD_DEFINE_ATTR(softraw);
259
86255d9d
DT		 260#define ATKBD_DEFINE_RO_ATTR(_name) \
261static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
262static ssize_t atkbd_do_show_##_name(struct device *d, \
263 struct device_attribute *attr, char *b) \
264{ \
265 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
266} \
267static struct device_attribute atkbd_attr_##_name = \
268 __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL);
269
270ATKBD_DEFINE_RO_ATTR(err_count);
271
272static struct attribute *atkbd_attributes[] = {
273 &atkbd_attr_extra.attr,
274 &atkbd_attr_scroll.attr,
275 &atkbd_attr_set.attr,
276 &atkbd_attr_softrepeat.attr,
277 &atkbd_attr_softraw.attr,
278 &atkbd_attr_err_count.attr,
279 NULL
280};
281
282static struct attribute_group atkbd_attribute_group = {
283 .attrs = atkbd_attributes,
284};
285
0ae051a1
DT		 286static const unsigned int xl_table[] = {
287 ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK,
288 ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL,
289};
1da177e4 290
0ae051a1
DT		 291/*
292 * Checks if we should mangle the scancode to extract 'release' bit
293 * in translated mode.
294 */
295static int atkbd_need_xlate(unsigned long xl_bit, unsigned char code)
1da177e4 296{
0ae051a1
DT		 297 int i;
298
299 if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1)
300 return 0;
301
302 for (i = 0; i < ARRAY_SIZE(xl_table); i++)
303 if (code == xl_table[i])
304 return test_bit(i, &xl_bit);
305
306 return 1;
307}
308
309/*
310 * Calculates new value of xl_bit so the driver can distinguish
311 * between make/break pair of scancodes for select keys and PS/2
312 * protocol responses.
313 */
314static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code)
315{
316 int i;
317
318 for (i = 0; i < ARRAY_SIZE(xl_table); i++) {
319 if (!((code ^ xl_table[i]) & 0x7f)) {
320 if (code & 0x80)
321 __clear_bit(i, &atkbd->xl_bit);
322 else
323 __set_bit(i, &atkbd->xl_bit);
324 break;
325 }
326 }
327}
328
329/*
330 * Encode the scancode, 0xe0 prefix, and high bit into a single integer,
331 * keeping kernel 2.4 compatibility for set 2
332 */
333static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code)
334{
335 if (atkbd->set == 3) {
336 if (atkbd->emul == 1)
337 code |= 0x100;
338 } else {
339 code = (code & 0x7f) | ((code & 0x80) << 1);
340 if (atkbd->emul == 1)
341 code |= 0x80;
342 }
343
344 return code;
1da177e4
LT		 345}
346
347/*
348 * atkbd_interrupt(). Here takes place processing of data received from
349 * the keyboard into events.
350 */
351
352static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
7d12e780 353 unsigned int flags)
1da177e4
LT		 354{
355 struct atkbd *atkbd = serio_get_drvdata(serio);
0ae051a1 356 struct input_dev *dev = atkbd->dev;
1da177e4 357 unsigned int code = data;
554101e3 358 int scroll = 0, hscroll = 0, click = -1;
1da177e4 359 int value;
f6d65610 360 unsigned short keycode;
1da177e4
LT		 361
362#ifdef ATKBD_DEBUG
363 printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags);
364#endif
365
366#if !defined(__i386__) && !defined (__x86_64__)
367 if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
368 printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags);
369 serio_write(serio, ATKBD_CMD_RESEND);
370 atkbd->resend = 1;
371 goto out;
372 }
373
374 if (!flags && data == ATKBD_RET_ACK)
375 atkbd->resend = 0;
376#endif
377
378 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK))
379 if (ps2_handle_ack(&atkbd->ps2dev, data))
380 goto out;
381
382 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD))
383 if (ps2_handle_response(&atkbd->ps2dev, data))
384 goto out;
385
386 if (!atkbd->enabled)
387 goto out;
388
0ae051a1 389 input_event(dev, EV_MSC, MSC_RAW, code);
1da177e4
LT		 390
391 if (atkbd->translated) {
392
0ae051a1 393 if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) {
1da177e4
LT		 394 atkbd->release = code >> 7;
395 code &= 0x7f;
396 }
397
0ae051a1
DT		 398 if (!atkbd->emul)
399 atkbd_calculate_xl_bit(atkbd, data);
1da177e4
LT		 400 }
401
402 switch (code) {
403 case ATKBD_RET_BAT:
404 atkbd->enabled = 0;
dbc26344 405 serio_reconnect(atkbd->ps2dev.serio);
1da177e4
LT		 406 goto out;
407 case ATKBD_RET_EMUL0:
408 atkbd->emul = 1;
409 goto out;
410 case ATKBD_RET_EMUL1:
411 atkbd->emul = 2;
412 goto out;
413 case ATKBD_RET_RELEASE:
414 atkbd->release = 1;
415 goto out;
0ae051a1
DT		 416 case ATKBD_RET_ACK:
417 case ATKBD_RET_NAK:
9f7a60d6
QY		 418 if (printk_ratelimit())
419 printk(KERN_WARNING "atkbd.c: Spurious %s on %s. "
420 "Some program might be trying access hardware directly.\n",
421 data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
1da177e4 422 goto out;
1da177e4 423 case ATKBD_RET_ERR:
86255d9d
DT		 424 atkbd->err_count++;
425#ifdef ATKBD_DEBUG
1da177e4 426 printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys);
86255d9d 427#endif
1da177e4
LT		 428 goto out;
429 }
430
0ae051a1
DT		 431 code = atkbd_compat_scancode(atkbd, code);
432
433 if (atkbd->emul && --atkbd->emul)
434 goto out;
435
436 keycode = atkbd->keycode[code];
1da177e4 437
0ae051a1
DT		 438 if (keycode != ATKBD_KEY_NULL)
439 input_event(dev, EV_MSC, MSC_SCAN, code);
1da177e4 440
0ae051a1 441 switch (keycode) {
1da177e4
LT		 442 case ATKBD_KEY_NULL:
443 break;
444 case ATKBD_KEY_UNKNOWN:
0ae051a1
DT		 445 printk(KERN_WARNING
446 "atkbd.c: Unknown key %s (%s set %d, code %#x on %s).\n",
447 atkbd->release ? "released" : "pressed",
448 atkbd->translated ? "translated" : "raw",
449 atkbd->set, code, serio->phys);
450 printk(KERN_WARNING
451 "atkbd.c: Use 'setkeycodes %s%02x <keycode>' to make it known.\n",
452 code & 0x80 ? "e0" : "", code & 0x7f);
453 input_sync(dev);
1da177e4
LT		 454 break;
455 case ATKBD_SCR_1:
456 scroll = 1 - atkbd->release * 2;
457 break;
458 case ATKBD_SCR_2:
459 scroll = 2 - atkbd->release * 4;
460 break;
461 case ATKBD_SCR_4:
462 scroll = 4 - atkbd->release * 8;
463 break;
464 case ATKBD_SCR_8:
465 scroll = 8 - atkbd->release * 16;
466 break;
467 case ATKBD_SCR_CLICK:
468 click = !atkbd->release;
469 break;
470 case ATKBD_SCR_LEFT:
471 hscroll = -1;
472 break;
473 case ATKBD_SCR_RIGHT:
474 hscroll = 1;
475 break;
476 default:
0ae051a1
DT		 477 if (atkbd->release) {
478 value = 0;
479 atkbd->last = 0;
480 } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) {
481 /* Workaround Toshiba laptop multiple keypress */
482 value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2;
483 } else {
484 value = 1;
485 atkbd->last = code;
486 atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2;
1da177e4
LT		 487 }
488
f8b4c46c 489 input_event(dev, EV_KEY, keycode, value);
0ae051a1
DT		 490 input_sync(dev);
491
554101e3 492 if (value && test_bit(code, atkbd->force_release_mask)) {
0ae051a1
DT		 493 input_report_key(dev, keycode, 0);
494 input_sync(dev);
495 }
1da177e4
LT		 496 }
497
498 if (atkbd->scroll) {
1da177e4 499 if (click != -1)
0ae051a1
DT		 500 input_report_key(dev, BTN_MIDDLE, click);
501 input_report_rel(dev, REL_WHEEL, scroll);
502 input_report_rel(dev, REL_HWHEEL, hscroll);
503 input_sync(dev);
1da177e4
LT		 504 }
505
506 atkbd->release = 0;
507out:
508 return IRQ_HANDLED;
509}
510
3d0f0fa0 511static int atkbd_set_repeat_rate(struct atkbd *atkbd)
1da177e4 512{
1da177e4
LT		 513 const short period[32] =
514 { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125,
515 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 };
516 const short delay[4] =
517 { 250, 500, 750, 1000 };
0d4c8597 518
3d0f0fa0
DT		 519 struct input_dev *dev = atkbd->dev;
520 unsigned char param;
521 int i = 0, j = 0;
522
523 while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD])
524 i++;
525 dev->rep[REP_PERIOD] = period[i];
526
8ea371fb 527 while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY])
3d0f0fa0
DT		 528 j++;
529 dev->rep[REP_DELAY] = delay[j];
530
531 param = i | (j << 5);
532 return ps2_command(&atkbd->ps2dev, &param, ATKBD_CMD_SETREP);
533}
534
535static int atkbd_set_leds(struct atkbd *atkbd)
536{
0d4c8597 537 struct input_dev *dev = atkbd->dev;
1da177e4 538 unsigned char param[2];
1da177e4 539
3d0f0fa0
DT		 540 param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
541 | (test_bit(LED_NUML, dev->led) ? 2 : 0)
542 | (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
543 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
544 return -1;
0d4c8597 545
3d0f0fa0
DT		 546 if (atkbd->extra) {
547 param[0] = 0;
548 param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
549 | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
550 | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
551 | (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
552 | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
553 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS))
554 return -1;
0d4c8597
DT		 555 }
556
3d0f0fa0
DT		 557 return 0;
558}
559
560/*
561 * atkbd_event_work() is used to complete processing of events that
562 * can not be processed by input_event() which is often called from
563 * interrupt context.
564 */
565
65f27f38 566static void atkbd_event_work(struct work_struct *work)
3d0f0fa0 567{
da4249c9 568 struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work);
3d0f0fa0
DT		 569
570 mutex_lock(&atkbd->event_mutex);
571
572 if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask))
573 atkbd_set_leds(atkbd);
574
575 if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask))
576 atkbd_set_repeat_rate(atkbd);
0d4c8597 577
33d3f07a 578 mutex_unlock(&atkbd->event_mutex);
0d4c8597
DT		 579}
580
da4249c9
DT		 581/*
582 * Schedule switch for execution. We need to throttle requests,
583 * otherwise keyboard may become unresponsive.
584 */
585static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit)
586{
587 unsigned long delay = msecs_to_jiffies(50);
588
589 if (time_after(jiffies, atkbd->event_jiffies + delay))
590 delay = 0;
591
592 atkbd->event_jiffies = jiffies;
593 set_bit(event_bit, &atkbd->event_mask);
594 wmb();
595 schedule_delayed_work(&atkbd->event_work, delay);
596}
597
0d4c8597
DT		 598/*
599 * Event callback from the input module. Events that change the state of
600 * the hardware are processed here. If action can not be performed in
601 * interrupt context it is offloaded to atkbd_event_work.
602 */
603
da4249c9
DT		 604static int atkbd_event(struct input_dev *dev,
605 unsigned int type, unsigned int code, int value)
0d4c8597 606{
b356872f 607 struct atkbd *atkbd = input_get_drvdata(dev);
0d4c8597 608
1da177e4
LT		 609 if (!atkbd->write)
610 return -1;
611
612 switch (type) {
613
614 case EV_LED:
da4249c9 615 atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT);
1da177e4
LT		 616 return 0;
617
1da177e4 618 case EV_REP:
da4249c9
DT		 619 if (!atkbd->softrepeat)
620 atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT);
1da177e4
LT		 621 return 0;
622 }
623
624 return -1;
625}
626
627/*
628 * atkbd_enable() signals that interrupt handler is allowed to
629 * generate input events.
630 */
631
632static inline void atkbd_enable(struct atkbd *atkbd)
633{
634 serio_pause_rx(atkbd->ps2dev.serio);
635 atkbd->enabled = 1;
636 serio_continue_rx(atkbd->ps2dev.serio);
637}
638
639/*
640 * atkbd_disable() tells input handler that all incoming data except
641 * for ACKs and command response should be dropped.
642 */
643
644static inline void atkbd_disable(struct atkbd *atkbd)
645{
646 serio_pause_rx(atkbd->ps2dev.serio);
647 atkbd->enabled = 0;
648 serio_continue_rx(atkbd->ps2dev.serio);
649}
650
651/*
652 * atkbd_probe() probes for an AT keyboard on a serio port.
653 */
654
655static int atkbd_probe(struct atkbd *atkbd)
656{
657 struct ps2dev *ps2dev = &atkbd->ps2dev;
658 unsigned char param[2];
659
660/*
661 * Some systems, where the bit-twiddling when testing the io-lines of the
662 * controller may confuse the keyboard need a full reset of the keyboard. On
663 * these systems the BIOS also usually doesn't do it for us.
664 */
665
666 if (atkbd_reset)
667 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT))
668 printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", ps2dev->serio->phys);
669
670/*
671 * Then we check the keyboard ID. We should get 0xab83 under normal conditions.
672 * Some keyboards report different values, but the first byte is always 0xab or
673 * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
674 * should make sure we don't try to set the LEDs on it.
675 */
676
677 param[0] = param[1] = 0xa5; /* initialize with invalid values */
678 if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) {
679
680/*
681 * If the get ID command failed, we check if we can at least set the LEDs on
682 * the keyboard. This should work on every keyboard out there. It also turns
683 * the LEDs off, which we want anyway.
684 */
685 param[0] = 0;
686 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
687 return -1;
688 atkbd->id = 0xabba;
689 return 0;
690 }
691
9807879b 692 if (!ps2_is_keyboard_id(param[0]))
1da177e4
LT		 693 return -1;
694
695 atkbd->id = (param[0] << 8) | param[1];
696
697 if (atkbd->id == 0xaca1 && atkbd->translated) {
698 printk(KERN_ERR "atkbd.c: NCD terminal keyboards are only supported on non-translating\n");
699 printk(KERN_ERR "atkbd.c: controllers. Use i8042.direct=1 to disable translation.\n");
700 return -1;
701 }
702
703 return 0;
704}
705
706/*
707 * atkbd_select_set checks if a keyboard has a working Set 3 support, and
708 * sets it into that. Unfortunately there are keyboards that can be switched
709 * to Set 3, but don't work well in that (BTC Multimedia ...)
710 */
711
712static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra)
713{
714 struct ps2dev *ps2dev = &atkbd->ps2dev;
715 unsigned char param[2];
716
717 atkbd->extra = 0;
718/*
719 * For known special keyboards we can go ahead and set the correct set.
720 * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and
721 * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards.
722 */
723
724 if (atkbd->translated)
725 return 2;
726
727 if (atkbd->id == 0xaca1) {
728 param[0] = 3;
729 ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET);
730 return 3;
731 }
732
733 if (allow_extra) {
734 param[0] = 0x71;
735 if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) {
736 atkbd->extra = 1;
737 return 2;
738 }
739 }
740
741 if (target_set != 3)
742 return 2;
743
744 if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) {
745 atkbd->id = param[0] << 8 | param[1];
746 return 2;
747 }
748
749 param[0] = 3;
750 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
751 return 2;
752
753 param[0] = 0;
754 if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET))
755 return 2;
756
757 if (param[0] != 3) {
758 param[0] = 2;
759 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
760 return 2;
761 }
762
763 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR);
764
765 return 3;
766}
767
768static int atkbd_activate(struct atkbd *atkbd)
769{
770 struct ps2dev *ps2dev = &atkbd->ps2dev;
771 unsigned char param[1];
772
773/*
774 * Set the LEDs to a defined state.
775 */
776
777 param[0] = 0;
778 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
779 return -1;
780
781/*
782 * Set autorepeat to fastest possible.
783 */
784
785 param[0] = 0;
786 if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP))
787 return -1;
788
789/*
790 * Enable the keyboard to receive keystrokes.
791 */
792
793 if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) {
794 printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n",
795 ps2dev->serio->phys);
796 return -1;
797 }
798
799 return 0;
800}
801
802/*
803 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
804 * reboot.
805 */
806
807static void atkbd_cleanup(struct serio *serio)
808{
809 struct atkbd *atkbd = serio_get_drvdata(serio);
57f5b159
DT		 810
811 atkbd_disable(atkbd);
1da177e4
LT		 812 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_BAT);
813}
814
815
816/*
817 * atkbd_disconnect() closes and frees.
818 */
819
820static void atkbd_disconnect(struct serio *serio)
821{
822 struct atkbd *atkbd = serio_get_drvdata(serio);
823
824 atkbd_disable(atkbd);
825
826 /* make sure we don't have a command in flight */
d6d79a78 827 cancel_delayed_work_sync(&atkbd->event_work);
1da177e4 828
86255d9d 829 sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
3c42f0c3 830 input_unregister_device(atkbd->dev);
1da177e4
LT		 831 serio_close(serio);
832 serio_set_drvdata(serio, NULL);
833 kfree(atkbd);
834}
835
554101e3 836/*
61579ba8 837 * Most special keys (Fn+F?) on Dell laptops do not generate release
554101e3
GN		 838 * events so we have to do it ourselves.
839 */
61579ba8 840static void atkbd_dell_laptop_keymap_fixup(struct atkbd *atkbd)
554101e3
GN		 841{
842 const unsigned int forced_release_keys[] = {
843 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93,
844 };
845 int i;
846
847 if (atkbd->set == 2)
848 for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
849 __set_bit(forced_release_keys[i],
850 atkbd->force_release_mask);
851}
1da177e4 852
5a54c011
JK		 853/*
854 * Perform fixup for HP system that doesn't generate release
855 * for its video switch
856 */
857static void atkbd_hp_keymap_fixup(struct atkbd *atkbd)
858{
859 const unsigned int forced_release_keys[] = {
860 0x94,
861 };
862 int i;
863
864 if (atkbd->set == 2)
865 for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
866 __set_bit(forced_release_keys[i],
867 atkbd->force_release_mask);
868}
869
a8215b81
MG		 870/*
871 * Inventec system with broken key release on volume keys
872 */
873static void atkbd_inventec_keymap_fixup(struct atkbd *atkbd)
874{
875 const unsigned int forced_release_keys[] = {
876 0xae, 0xb0,
877 };
878 int i;
879
880 if (atkbd->set == 2)
881 for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
882 __set_bit(forced_release_keys[i],
883 atkbd->force_release_mask);
884}
885
1da177e4 886/*
3c42f0c3 887 * atkbd_set_keycode_table() initializes keyboard's keycode table
1da177e4
LT		 888 * according to the selected scancode set
889 */
890
891static void atkbd_set_keycode_table(struct atkbd *atkbd)
892{
554101e3 893 unsigned int scancode;
1da177e4
LT		 894 int i, j;
895
896 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
554101e3 897 bitmap_zero(atkbd->force_release_mask, 512);
1da177e4
LT		 898
899 if (atkbd->translated) {
900 for (i = 0; i < 128; i++) {
554101e3
GN		 901 scancode = atkbd_unxlate_table[i];
902 atkbd->keycode[i] = atkbd_set2_keycode[scancode];
903 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
1da177e4
LT		 904 if (atkbd->scroll)
905 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
554101e3 906 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
1da177e4
LT		 907 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
908 }
909 } else if (atkbd->set == 3) {
910 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
911 } else {
912 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
913
914 if (atkbd->scroll)
554101e3
GN		 915 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
916 scancode = atkbd_scroll_keys[i].set2;
917 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
918 }
1da177e4 919 }
0ae051a1 920
554101e3
GN		 921/*
922 * HANGEUL and HANJA keys do not send release events so we need to
923 * generate such events ourselves
924 */
925 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
926 atkbd->keycode[scancode] = KEY_HANGEUL;
927 __set_bit(scancode, atkbd->force_release_mask);
928
929 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
930 atkbd->keycode[scancode] = KEY_HANJA;
931 __set_bit(scancode, atkbd->force_release_mask);
932
933/*
934 * Perform additional fixups
935 */
936 if (atkbd_platform_fixup)
937 atkbd_platform_fixup(atkbd);
1da177e4
LT		 938}
939
940/*
941 * atkbd_set_device_attrs() sets up keyboard's input device structure
942 */
943
944static void atkbd_set_device_attrs(struct atkbd *atkbd)
945{
3c42f0c3 946 struct input_dev *input_dev = atkbd->dev;
1da177e4
LT		 947 int i;
948
3c42f0c3 949 if (atkbd->extra)
ea08c6fa
DT		 950 snprintf(atkbd->name, sizeof(atkbd->name),
951 "AT Set 2 Extra keyboard");
3c42f0c3 952 else
ea08c6fa
DT		 953 snprintf(atkbd->name, sizeof(atkbd->name),
954 "AT %s Set %d keyboard",
955 atkbd->translated ? "Translated" : "Raw", atkbd->set);
1da177e4 956
ea08c6fa
DT		 957 snprintf(atkbd->phys, sizeof(atkbd->phys),
958 "%s/input0", atkbd->ps2dev.serio->phys);
1da177e4 959
3c42f0c3
DT		 960 input_dev->name = atkbd->name;
961 input_dev->phys = atkbd->phys;
962 input_dev->id.bustype = BUS_I8042;
963 input_dev->id.vendor = 0x0001;
964 input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
965 input_dev->id.version = atkbd->id;
966 input_dev->event = atkbd_event;
469ba4df 967 input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
1da177e4 968
b356872f
DT		 969 input_set_drvdata(input_dev, atkbd);
970
7b19ada2
JS		 971 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
972 BIT_MASK(EV_MSC);
1da177e4
LT		 973
974 if (atkbd->write) {
7b19ada2
JS		 975 input_dev->evbit[0] |= BIT_MASK(EV_LED);
976 input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
977 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
1da177e4
LT		 978 }
979
980 if (atkbd->extra)
7b19ada2
JS		 981 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
982 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
983 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
1da177e4
LT		 984
985 if (!atkbd->softrepeat) {
3c42f0c3
DT		 986 input_dev->rep[REP_DELAY] = 250;
987 input_dev->rep[REP_PERIOD] = 33;
1da177e4
LT		 988 }
989
7b19ada2
JS		 990 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
991 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
1da177e4
LT		 992
993 if (atkbd->scroll) {
7b19ada2
JS		 994 input_dev->evbit[0] |= BIT_MASK(EV_REL);
995 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
996 BIT_MASK(REL_HWHEEL);
f6d65610 997 __set_bit(BTN_MIDDLE, input_dev->keybit);
1da177e4
LT		 998 }
999
3c42f0c3 1000 input_dev->keycode = atkbd->keycode;
f6d65610 1001 input_dev->keycodesize = sizeof(unsigned short);
3c42f0c3 1002 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
1da177e4
LT		 1003
1004 for (i = 0; i < 512; i++)
1005 if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL)
f6d65610 1006 __set_bit(atkbd->keycode[i], input_dev->keybit);
1da177e4
LT		 1007}
1008
1009/*
1010 * atkbd_connect() is called when the serio module finds an interface
1011 * that isn't handled yet by an appropriate device driver. We check if
1012 * there is an AT keyboard out there and if yes, we register ourselves
1013 * to the input module.
1014 */
1015
1016static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
1017{
1018 struct atkbd *atkbd;
3c42f0c3
DT		 1019 struct input_dev *dev;
1020 int err = -ENOMEM;
1da177e4 1021
3c42f0c3
DT		 1022 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
1023 dev = input_allocate_device();
1024 if (!atkbd || !dev)
2b03b60e 1025 goto fail1;
1da177e4 1026
3c42f0c3 1027 atkbd->dev = dev;
1da177e4 1028 ps2_init(&atkbd->ps2dev, serio);
da4249c9 1029 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
33d3f07a 1030 mutex_init(&atkbd->event_mutex);
1da177e4
LT		 1031
1032 switch (serio->id.type) {
1033
1034 case SERIO_8042_XL:
1035 atkbd->translated = 1;
1036 case SERIO_8042:
1037 if (serio->write)
1038 atkbd->write = 1;
1039 break;
1040 }
1041
1042 atkbd->softraw = atkbd_softraw;
1043 atkbd->softrepeat = atkbd_softrepeat;
1044 atkbd->scroll = atkbd_scroll;
1045
1da177e4
LT		 1046 if (atkbd->softrepeat)
1047 atkbd->softraw = 1;
1048
1049 serio_set_drvdata(serio, atkbd);
1050
1051 err = serio_open(serio, drv);
3c42f0c3 1052 if (err)
2b03b60e 1053 goto fail2;
1da177e4
LT		 1054
1055 if (atkbd->write) {
1056
1057 if (atkbd_probe(atkbd)) {
3c42f0c3 1058 err = -ENODEV;
2b03b60e 1059 goto fail3;
1da177e4
LT		 1060 }
1061
1062 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
1063 atkbd_activate(atkbd);
1064
1065 } else {
1066 atkbd->set = 2;
1067 atkbd->id = 0xab00;
1068 }
1069
1da177e4
LT		 1070 atkbd_set_keycode_table(atkbd);
1071 atkbd_set_device_attrs(atkbd);
1072
2b03b60e
DT		 1073 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group);
1074 if (err)
1075 goto fail3;
1da177e4
LT		 1076
1077 atkbd_enable(atkbd);
1078
2b03b60e
DT		 1079 err = input_register_device(atkbd->dev);
1080 if (err)
1081 goto fail4;
1da177e4
LT		 1082
1083 return 0;
3c42f0c3 1084
2b03b60e
DT		 1085 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
1086 fail3: serio_close(serio);
1087 fail2: serio_set_drvdata(serio, NULL);
1088 fail1: input_free_device(dev);
3c42f0c3
DT		 1089 kfree(atkbd);
1090 return err;
1da177e4
LT		 1091}
1092
1093/*
1094 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1095 * most likely called on resume.
1096 */
1097
1098static int atkbd_reconnect(struct serio *serio)
1099{
1100 struct atkbd *atkbd = serio_get_drvdata(serio);
1101 struct serio_driver *drv = serio->drv;
1da177e4
LT		 1102
1103 if (!atkbd || !drv) {
1104 printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
1105 return -1;
1106 }
1107
1108 atkbd_disable(atkbd);
1109
1110 if (atkbd->write) {
1da177e4
LT		 1111 if (atkbd_probe(atkbd))
1112 return -1;
1113 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
1114 return -1;
1115
1116 atkbd_activate(atkbd);
1117
3d0f0fa0
DT		 1118/*
1119 * Restore repeat rate and LEDs (that were reset by atkbd_activate)
1120 * to pre-resume state
1121 */
1122 if (!atkbd->softrepeat)
1123 atkbd_set_repeat_rate(atkbd);
1124 atkbd_set_leds(atkbd);
1da177e4
LT		 1125 }
1126
1127 atkbd_enable(atkbd);
1128
1129 return 0;
1130}
1131
1132static struct serio_device_id atkbd_serio_ids[] = {
1133 {
1134 .type = SERIO_8042,
1135 .proto = SERIO_ANY,
1136 .id = SERIO_ANY,
1137 .extra = SERIO_ANY,
1138 },
1139 {
1140 .type = SERIO_8042_XL,
1141 .proto = SERIO_ANY,
1142 .id = SERIO_ANY,
1143 .extra = SERIO_ANY,
1144 },
1145 {
1146 .type = SERIO_RS232,
1147 .proto = SERIO_PS2SER,
1148 .id = SERIO_ANY,
1149 .extra = SERIO_ANY,
1150 },
1151 { 0 }
1152};
1153
1154MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1155
1156static struct serio_driver atkbd_drv = {
1157 .driver = {
1158 .name = "atkbd",
1159 },
1160 .description = DRIVER_DESC,
1161 .id_table = atkbd_serio_ids,
1162 .interrupt = atkbd_interrupt,
1163 .connect = atkbd_connect,
1164 .reconnect = atkbd_reconnect,
1165 .disconnect = atkbd_disconnect,
1166 .cleanup = atkbd_cleanup,
1167};
1168
1169static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1170 ssize_t (*handler)(struct atkbd *, char *))
1171{
1172 struct serio *serio = to_serio_port(dev);
1173 int retval;
1174
1175 retval = serio_pin_driver(serio);
1176 if (retval)
1177 return retval;
1178
1179 if (serio->drv != &atkbd_drv) {
1180 retval = -ENODEV;
1181 goto out;
1182 }
1183
1184 retval = handler((struct atkbd *)serio_get_drvdata(serio), buf);
1185
1186out:
1187 serio_unpin_driver(serio);
1188 return retval;
1189}
1190
1191static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1192 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1193{
1194 struct serio *serio = to_serio_port(dev);
1195 struct atkbd *atkbd;
1196 int retval;
1197
1198 retval = serio_pin_driver(serio);
1199 if (retval)
1200 return retval;
1201
1202 if (serio->drv != &atkbd_drv) {
1203 retval = -ENODEV;
1204 goto out;
1205 }
1206
1207 atkbd = serio_get_drvdata(serio);
1208 atkbd_disable(atkbd);
1209 retval = handler(atkbd, buf, count);
1210 atkbd_enable(atkbd);
1211
1212out:
1213 serio_unpin_driver(serio);
1214 return retval;
1215}
1216
1217static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1218{
1219 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1220}
1221
1222static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1223{
2b03b60e 1224 struct input_dev *old_dev, *new_dev;
1da177e4 1225 unsigned long value;
2b03b60e
DT		 1226 int err;
1227 unsigned char old_extra, old_set;
1da177e4
LT		 1228
1229 if (!atkbd->write)
1230 return -EIO;
1231
160f1fef 1232 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1233 return -EINVAL;
1234
1235 if (atkbd->extra != value) {
3c42f0c3
DT		 1236 /*
1237 * Since device's properties will change we need to
2b03b60e
DT		 1238 * unregister old device. But allocate and register
1239 * new one first to make sure we have it.
3c42f0c3 1240 */
2b03b60e
DT		 1241 old_dev = atkbd->dev;
1242 old_extra = atkbd->extra;
1243 old_set = atkbd->set;
1244
1245 new_dev = input_allocate_device();
1246 if (!new_dev)
3c42f0c3 1247 return -ENOMEM;
2b03b60e 1248
3c42f0c3 1249 atkbd->dev = new_dev;
1da177e4
LT		 1250 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
1251 atkbd_activate(atkbd);
2b03b60e 1252 atkbd_set_keycode_table(atkbd);
1da177e4 1253 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1254
1255 err = input_register_device(atkbd->dev);
1256 if (err) {
1257 input_free_device(new_dev);
1258
1259 atkbd->dev = old_dev;
1260 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1261 atkbd_set_keycode_table(atkbd);
1262 atkbd_set_device_attrs(atkbd);
1263
1264 return err;
1265 }
1266 input_unregister_device(old_dev);
1267
1da177e4
LT		 1268 }
1269 return count;
1270}
1271
1272static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1273{
1274 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1275}
1276
1277static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1278{
2b03b60e 1279 struct input_dev *old_dev, *new_dev;
1da177e4 1280 unsigned long value;
2b03b60e
DT		 1281 int err;
1282 unsigned char old_scroll;
1da177e4 1283
160f1fef 1284 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1285 return -EINVAL;
1286
1287 if (atkbd->scroll != value) {
2b03b60e
DT		 1288 old_dev = atkbd->dev;
1289 old_scroll = atkbd->scroll;
1290
1291 new_dev = input_allocate_device();
1292 if (!new_dev)
3c42f0c3 1293 return -ENOMEM;
2b03b60e 1294
3c42f0c3 1295 atkbd->dev = new_dev;
1da177e4
LT		 1296 atkbd->scroll = value;
1297 atkbd_set_keycode_table(atkbd);
1298 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1299
1300 err = input_register_device(atkbd->dev);
1301 if (err) {
1302 input_free_device(new_dev);
1303
1304 atkbd->scroll = old_scroll;
1305 atkbd->dev = old_dev;
1306 atkbd_set_keycode_table(atkbd);
1307 atkbd_set_device_attrs(atkbd);
1308
1309 return err;
1310 }
1311 input_unregister_device(old_dev);
1da177e4
LT		 1312 }
1313 return count;
1314}
1315
1316static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1317{
1318 return sprintf(buf, "%d\n", atkbd->set);
1319}
1320
1321static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1322{
2b03b60e 1323 struct input_dev *old_dev, *new_dev;
1da177e4 1324 unsigned long value;
2b03b60e
DT		 1325 int err;
1326 unsigned char old_set, old_extra;
1da177e4
LT		 1327
1328 if (!atkbd->write)
1329 return -EIO;
1330
160f1fef 1331 if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3))
1da177e4
LT		 1332 return -EINVAL;
1333
1334 if (atkbd->set != value) {
2b03b60e
DT		 1335 old_dev = atkbd->dev;
1336 old_extra = atkbd->extra;
1337 old_set = atkbd->set;
1338
1339 new_dev = input_allocate_device();
1340 if (!new_dev)
3c42f0c3 1341 return -ENOMEM;
2b03b60e 1342
3c42f0c3 1343 atkbd->dev = new_dev;
1da177e4
LT		 1344 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
1345 atkbd_activate(atkbd);
1346 atkbd_set_keycode_table(atkbd);
1347 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1348
1349 err = input_register_device(atkbd->dev);
1350 if (err) {
1351 input_free_device(new_dev);
1352
1353 atkbd->dev = old_dev;
1354 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1355 atkbd_set_keycode_table(atkbd);
1356 atkbd_set_device_attrs(atkbd);
1357
1358 return err;
1359 }
1360 input_unregister_device(old_dev);
1da177e4
LT		 1361 }
1362 return count;
1363}
1364
1365static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1366{
1367 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1368}
1369
1370static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1371{
2b03b60e 1372 struct input_dev *old_dev, *new_dev;
1da177e4 1373 unsigned long value;
2b03b60e
DT		 1374 int err;
1375 unsigned char old_softrepeat, old_softraw;
1da177e4
LT		 1376
1377 if (!atkbd->write)
1378 return -EIO;
1379
160f1fef 1380 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1381 return -EINVAL;
1382
1383 if (atkbd->softrepeat != value) {
2b03b60e
DT		 1384 old_dev = atkbd->dev;
1385 old_softrepeat = atkbd->softrepeat;
1386 old_softraw = atkbd->softraw;
1387
1388 new_dev = input_allocate_device();
1389 if (!new_dev)
3c42f0c3 1390 return -ENOMEM;
2b03b60e 1391
3c42f0c3 1392 atkbd->dev = new_dev;
1da177e4
LT		 1393 atkbd->softrepeat = value;
1394 if (atkbd->softrepeat)
1395 atkbd->softraw = 1;
1396 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1397
1398 err = input_register_device(atkbd->dev);
1399 if (err) {
1400 input_free_device(new_dev);
1401
1402 atkbd->dev = old_dev;
1403 atkbd->softrepeat = old_softrepeat;
1404 atkbd->softraw = old_softraw;
1405 atkbd_set_device_attrs(atkbd);
1406
1407 return err;
1408 }
1409 input_unregister_device(old_dev);
1da177e4 1410 }
1da177e4
LT		 1411 return count;
1412}
1413
1414
1415static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1416{
1417 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1418}
1419
1420static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1421{
2b03b60e 1422 struct input_dev *old_dev, *new_dev;
1da177e4 1423 unsigned long value;
2b03b60e
DT		 1424 int err;
1425 unsigned char old_softraw;
1da177e4 1426
160f1fef 1427 if (strict_strtoul(buf, 10, &value) || value > 1)
1da177e4
LT		 1428 return -EINVAL;
1429
1430 if (atkbd->softraw != value) {
2b03b60e
DT		 1431 old_dev = atkbd->dev;
1432 old_softraw = atkbd->softraw;
1433
1434 new_dev = input_allocate_device();
1435 if (!new_dev)
3c42f0c3 1436 return -ENOMEM;
2b03b60e 1437
3c42f0c3 1438 atkbd->dev = new_dev;
1da177e4
LT		 1439 atkbd->softraw = value;
1440 atkbd_set_device_attrs(atkbd);
2b03b60e
DT		 1441
1442 err = input_register_device(atkbd->dev);
1443 if (err) {
1444 input_free_device(new_dev);
1445
1446 atkbd->dev = old_dev;
1447 atkbd->softraw = old_softraw;
1448 atkbd_set_device_attrs(atkbd);
1449
1450 return err;
1451 }
1452 input_unregister_device(old_dev);
1da177e4
LT		 1453 }
1454 return count;
1455}
1456
86255d9d
DT		 1457static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1458{
1459 return sprintf(buf, "%lu\n", atkbd->err_count);
1460}
1461
554101e3
GN		 1462static int __init atkbd_setup_fixup(const struct dmi_system_id *id)
1463{
1464 atkbd_platform_fixup = id->driver_data;
1465 return 0;
1466}
1467
1468static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
1469 {
61579ba8 1470 .ident = "Dell Laptop",
554101e3
GN		 1471 .matches = {
1472 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
61579ba8 1473 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
554101e3
GN		 1474 },
1475 .callback = atkbd_setup_fixup,
61579ba8 1476 .driver_data = atkbd_dell_laptop_keymap_fixup,
554101e3 1477 },
5a54c011
JK		 1478 {
1479 .ident = "HP 2133",
1480 .matches = {
1481 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1482 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1483 },
1484 .callback = atkbd_setup_fixup,
1485 .driver_data = atkbd_hp_keymap_fixup,
1486 },
a8215b81
MG		 1487 {
1488 .ident = "Inventec Symphony",
1489 .matches = {
1490 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1491 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1492 },
1493 .callback = atkbd_setup_fixup,
1494 .driver_data = atkbd_inventec_keymap_fixup,
1495 },
554101e3
GN		 1496 { }
1497};
1da177e4
LT		 1498
1499static int __init atkbd_init(void)
1500{
554101e3
GN		 1501 dmi_check_system(atkbd_dmi_quirk_table);
1502
153a9df0 1503 return serio_register_driver(&atkbd_drv);
1da177e4
LT		 1504}
1505
1506static void __exit atkbd_exit(void)
1507{
1508 serio_unregister_driver(&atkbd_drv);
1509}
1510
1511module_init(atkbd_init);
1512module_exit(atkbd_exit);
kernel source for telekom puls (alcatel/mediatek)