1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * AT and PS/2 keyboard driver
4 *
5 * Copyright (c) 1999-2002 Vojtech Pavlik
6 */
7
8
9 /*
10 * This driver can handle standard AT keyboards and PS/2 keyboards in
11 * Translated and Raw Set 2 and Set 3, as well as AT keyboards on dumb
12 * input-only controllers and AT keyboards connected over a one way RS232
13 * converter.
14 */
15
16 #include <linux/delay.h>
17 #include <linux/module.h>
18 #include <linux/slab.h>
19 #include <linux/interrupt.h>
20 #include <linux/init.h>
21 #include <linux/input.h>
22 #include <linux/serio.h>
23 #include <linux/workqueue.h>
24 #include <linux/libps2.h>
25 #include <linux/mutex.h>
26 #include <linux/dmi.h>
27 #include <linux/property.h>
28
29 #define DRIVER_DESC "AT and PS/2 keyboard driver"
30
31 MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
32 MODULE_DESCRIPTION(DRIVER_DESC);
33 MODULE_LICENSE("GPL");
34
35 static int atkbd_set = 2;
36 module_param_named(set, atkbd_set, int, 0);
37 MODULE_PARM_DESC(set, "Select keyboard code set (2 = default, 3 = PS/2 native)");
38
39 #if defined(__i386__) || defined(__x86_64__) || defined(__hppa__)
40 static bool atkbd_reset;
41 #else
42 static bool atkbd_reset = true;
43 #endif
44 module_param_named(reset, atkbd_reset, bool, 0);
45 MODULE_PARM_DESC(reset, "Reset keyboard during initialization");
46
47 static bool atkbd_softrepeat;
48 module_param_named(softrepeat, atkbd_softrepeat, bool, 0);
49 MODULE_PARM_DESC(softrepeat, "Use software keyboard repeat");
50
51 static bool atkbd_softraw = true;
52 module_param_named(softraw, atkbd_softraw, bool, 0);
53 MODULE_PARM_DESC(softraw, "Use software generated rawmode");
54
55 static bool atkbd_scroll;
56 module_param_named(scroll, atkbd_scroll, bool, 0);
57 MODULE_PARM_DESC(scroll, "Enable scroll-wheel on MS Office and similar keyboards");
58
59 static bool atkbd_extra;
60 module_param_named(extra, atkbd_extra, bool, 0);
61 MODULE_PARM_DESC(extra, "Enable extra LEDs and keys on IBM RapidAcces, EzKey and similar keyboards");
62
63 static bool atkbd_terminal;
64 module_param_named(terminal, atkbd_terminal, bool, 0);
65 MODULE_PARM_DESC(terminal, "Enable break codes on an IBM Terminal keyboard connected via AT/PS2");
66
67 #define MAX_FUNCTION_ROW_KEYS 24
68
69 #define SCANCODE(keymap) ((keymap >> 16) & 0xFFFF)
70 #define KEYCODE(keymap) (keymap & 0xFFFF)
71
72 /*
73 * Scancode to keycode tables. These are just the default setting, and
74 * are loadable via a userland utility.
75 */
76
77 #define ATKBD_KEYMAP_SIZE 512
78
79 static const unsigned short atkbd_set2_keycode[ATKBD_KEYMAP_SIZE] = {
80
81 #ifdef CONFIG_KEYBOARD_ATKBD_HP_KEYCODES
82
83 /* XXX: need a more general approach */
84
85 #include "hpps2atkbd.h" /* include the keyboard scancodes */
86
87 #else
88 0, 67, 65, 63, 61, 59, 60, 88, 0, 68, 66, 64, 62, 15, 41,117,
89 0, 56, 42, 93, 29, 16, 2, 0, 0, 0, 44, 31, 30, 17, 3, 0,
90 0, 46, 45, 32, 18, 5, 4, 95, 0, 57, 47, 33, 20, 19, 6,183,
91 0, 49, 48, 35, 34, 21, 7,184, 0, 0, 50, 36, 22, 8, 9,185,
92 0, 51, 37, 23, 24, 11, 10, 0, 0, 52, 53, 38, 39, 25, 12, 0,
93 0, 89, 40, 0, 26, 13, 0, 0, 58, 54, 28, 27, 0, 43, 0, 85,
94 0, 86, 91, 90, 92, 0, 14, 94, 0, 79,124, 75, 71,121, 0, 0,
95 82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99,
96
97 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
98 217,100,255, 0, 97,165, 0, 0,156, 0, 0, 0, 0, 0, 0,125,
99 173,114, 0,113, 0, 0, 0,126,128, 0, 0,140, 0, 0, 0,127,
100 159, 0,115, 0,164, 0, 0,116,158, 0,172,166, 0, 0, 0,142,
101 157, 0, 0, 0, 0, 0, 0, 0,155, 0, 98, 0, 0,163, 0, 0,
102 226, 0, 0, 0, 0, 0, 0, 0, 0,255, 96, 0, 0, 0,143, 0,
103 0, 0, 0, 0, 0, 0, 0, 0, 0,107, 0,105,102, 0, 0,112,
104 110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119, 0,
105
106 0, 0, 0, 65, 99,
107 #endif
108 };
109
110 static const unsigned short atkbd_set3_keycode[ATKBD_KEYMAP_SIZE] = {
111
112 0, 0, 0, 0, 0, 0, 0, 59, 1,138,128,129,130, 15, 41, 60,
113 131, 29, 42, 86, 58, 16, 2, 61,133, 56, 44, 31, 30, 17, 3, 62,
114 134, 46, 45, 32, 18, 5, 4, 63,135, 57, 47, 33, 20, 19, 6, 64,
115 136, 49, 48, 35, 34, 21, 7, 65,137,100, 50, 36, 22, 8, 9, 66,
116 125, 51, 37, 23, 24, 11, 10, 67,126, 52, 53, 38, 39, 25, 12, 68,
117 113,114, 40, 43, 26, 13, 87, 99, 97, 54, 28, 27, 43, 43, 88, 70,
118 108,105,119,103,111,107, 14,110, 0, 79,106, 75, 71,109,102,104,
119 82, 83, 80, 76, 77, 72, 69, 98, 0, 96, 81, 0, 78, 73, 55,183,
120
121 184,185,186,187, 74, 94, 92, 93, 0, 0, 0,125,126,127,112, 0,
122 0,139,172,163,165,115,152,172,166,140,160,154,113,114,167,168,
123 148,149,147,140
124 };
125
126 static const unsigned short atkbd_unxlate_table[128] = {
127 0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13,
128 21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27,
129 35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42,
130 50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88, 5, 6, 4, 12, 3,
131 11, 2, 10, 1, 9,119,126,108,117,125,123,107,115,116,121,105,
132 114,122,112,113,127, 96, 97,120, 7, 15, 23, 31, 39, 47, 55, 63,
133 71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111,
134 19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110
135 };
136
137 #define ATKBD_CMD_SETLEDS 0x10ed
138 #define ATKBD_CMD_GSCANSET 0x11f0
139 #define ATKBD_CMD_SSCANSET 0x10f0
140 #define ATKBD_CMD_GETID 0x02f2
141 #define ATKBD_CMD_SETREP 0x10f3
142 #define ATKBD_CMD_ENABLE 0x00f4
143 #define ATKBD_CMD_RESET_DIS 0x00f5 /* Reset to defaults and disable */
144 #define ATKBD_CMD_RESET_DEF 0x00f6 /* Reset to defaults */
145 #define ATKBD_CMD_SETALL_MB 0x00f8 /* Set all keys to give break codes */
146 #define ATKBD_CMD_SETALL_MBR 0x00fa /* ... and repeat */
147 #define ATKBD_CMD_RESET_BAT 0x02ff
148 #define ATKBD_CMD_RESEND 0x00fe
149 #define ATKBD_CMD_EX_ENABLE 0x10ea
150 #define ATKBD_CMD_EX_SETLEDS 0x20eb
151 #define ATKBD_CMD_OK_GETID 0x02e8
152
153 #define ATKBD_RET_ACK 0xfa
154 #define ATKBD_RET_NAK 0xfe
155 #define ATKBD_RET_BAT 0xaa
156 #define ATKBD_RET_EMUL0 0xe0
157 #define ATKBD_RET_EMUL1 0xe1
158 #define ATKBD_RET_RELEASE 0xf0
159 #define ATKBD_RET_HANJA 0xf1
160 #define ATKBD_RET_HANGEUL 0xf2
161 #define ATKBD_RET_ERR 0xff
162
163 #define ATKBD_KEY_UNKNOWN 0
164 #define ATKBD_KEY_NULL 255
165
166 #define ATKBD_SCR_1 0xfffe
167 #define ATKBD_SCR_2 0xfffd
168 #define ATKBD_SCR_4 0xfffc
169 #define ATKBD_SCR_8 0xfffb
170 #define ATKBD_SCR_CLICK 0xfffa
171 #define ATKBD_SCR_LEFT 0xfff9
172 #define ATKBD_SCR_RIGHT 0xfff8
173
174 #define ATKBD_SPECIAL ATKBD_SCR_RIGHT
175
176 #define ATKBD_LED_EVENT_BIT 0
177 #define ATKBD_REP_EVENT_BIT 1
178
179 #define ATKBD_XL_ERR 0x01
180 #define ATKBD_XL_BAT 0x02
181 #define ATKBD_XL_ACK 0x04
182 #define ATKBD_XL_NAK 0x08
183 #define ATKBD_XL_HANGEUL 0x10
184 #define ATKBD_XL_HANJA 0x20
185
186 static const struct {
187 unsigned short keycode;
188 unsigned char set2;
189 } atkbd_scroll_keys[] = {
190 { ATKBD_SCR_1, 0xc5 },
191 { ATKBD_SCR_2, 0x9d },
192 { ATKBD_SCR_4, 0xa4 },
193 { ATKBD_SCR_8, 0x9b },
194 { ATKBD_SCR_CLICK, 0xe0 },
195 { ATKBD_SCR_LEFT, 0xcb },
196 { ATKBD_SCR_RIGHT, 0xd2 },
197 };
198
199 /*
200 * The atkbd control structure
201 */
202
203 struct atkbd {
204
205 struct ps2dev ps2dev;
206 struct input_dev *dev;
207
208 /* Written only during init */
209 char name[64];
210 char phys[32];
211
212 unsigned short id;
213 unsigned short keycode[ATKBD_KEYMAP_SIZE];
214 DECLARE_BITMAP(force_release_mask, ATKBD_KEYMAP_SIZE);
215 unsigned char set;
216 bool translated;
217 bool extra;
218 bool write;
219 bool softrepeat;
220 bool softraw;
221 bool scroll;
222 bool enabled;
223
224 /* Accessed only from interrupt */
225 unsigned char emul;
226 bool resend;
227 bool release;
228 unsigned long xl_bit;
229 unsigned int last;
230 unsigned long time;
231 unsigned long err_count;
232
233 struct delayed_work event_work;
234 unsigned long event_jiffies;
235 unsigned long event_mask;
236
237 /* Serializes reconnect(), attr->set() and event work */
238 struct mutex mutex;
239
240 u32 function_row_physmap[MAX_FUNCTION_ROW_KEYS];
241 int num_function_row_keys;
242 };
243
244 /*
245 * System-specific keymap fixup routine
246 */
247 static void (*atkbd_platform_fixup)(struct atkbd *, const void *data);
248 static void *atkbd_platform_fixup_data;
249 static unsigned int (*atkbd_platform_scancode_fixup)(struct atkbd *, unsigned int);
250
251 /*
252 * Certain keyboards to not like ATKBD_CMD_RESET_DIS and stop responding
253 * to many commands until full reset (ATKBD_CMD_RESET_BAT) is performed.
254 */
255 static bool atkbd_skip_deactivate;
256
257 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
258 ssize_t (*handler)(struct atkbd *, char *));
259 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
260 ssize_t (*handler)(struct atkbd *, const char *, size_t));
261 #define ATKBD_DEFINE_ATTR(_name) \
262 static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
263 static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \
264 static ssize_t atkbd_do_show_##_name(struct device *d, \
265 struct device_attribute *attr, char *b) \
266 { \
267 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
268 } \
269 static ssize_t atkbd_do_set_##_name(struct device *d, \
270 struct device_attribute *attr, const char *b, size_t s) \
271 { \
272 return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \
273 } \
274 static struct device_attribute atkbd_attr_##_name = \
275 __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name);
276
277 ATKBD_DEFINE_ATTR(extra);
278 ATKBD_DEFINE_ATTR(force_release);
279 ATKBD_DEFINE_ATTR(scroll);
280 ATKBD_DEFINE_ATTR(set);
281 ATKBD_DEFINE_ATTR(softrepeat);
282 ATKBD_DEFINE_ATTR(softraw);
283
284 #define ATKBD_DEFINE_RO_ATTR(_name) \
285 static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
286 static ssize_t atkbd_do_show_##_name(struct device *d, \
287 struct device_attribute *attr, char *b) \
288 { \
289 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
290 } \
291 static struct device_attribute atkbd_attr_##_name = \
292 __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL);
293
294 ATKBD_DEFINE_RO_ATTR(err_count);
295 ATKBD_DEFINE_RO_ATTR(function_row_physmap);
296
297 static struct attribute *atkbd_attributes[] = {
298 &atkbd_attr_extra.attr,
299 &atkbd_attr_force_release.attr,
300 &atkbd_attr_scroll.attr,
301 &atkbd_attr_set.attr,
302 &atkbd_attr_softrepeat.attr,
303 &atkbd_attr_softraw.attr,
304 &atkbd_attr_err_count.attr,
305 &atkbd_attr_function_row_physmap.attr,
306 NULL
307 };
308
atkbd_show_function_row_physmap(struct atkbd * atkbd,char * buf)309 static ssize_t atkbd_show_function_row_physmap(struct atkbd *atkbd, char *buf)
310 {
311 ssize_t size = 0;
312 int i;
313
314 if (!atkbd->num_function_row_keys)
315 return 0;
316
317 for (i = 0; i < atkbd->num_function_row_keys; i++)
318 size += scnprintf(buf + size, PAGE_SIZE - size, "%02X ",
319 atkbd->function_row_physmap[i]);
320 size += scnprintf(buf + size, PAGE_SIZE - size, "\n");
321 return size;
322 }
323
atkbd_attr_is_visible(struct kobject * kobj,struct attribute * attr,int i)324 static umode_t atkbd_attr_is_visible(struct kobject *kobj,
325 struct attribute *attr, int i)
326 {
327 struct device *dev = container_of(kobj, struct device, kobj);
328 struct serio *serio = to_serio_port(dev);
329 struct atkbd *atkbd = serio_get_drvdata(serio);
330
331 if (attr == &atkbd_attr_function_row_physmap.attr &&
332 !atkbd->num_function_row_keys)
333 return 0;
334
335 return attr->mode;
336 }
337
338 static struct attribute_group atkbd_attribute_group = {
339 .attrs = atkbd_attributes,
340 .is_visible = atkbd_attr_is_visible,
341 };
342
343 static const unsigned int xl_table[] = {
344 ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK,
345 ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL,
346 };
347
348 /*
349 * Checks if we should mangle the scancode to extract 'release' bit
350 * in translated mode.
351 */
atkbd_need_xlate(unsigned long xl_bit,unsigned char code)352 static bool atkbd_need_xlate(unsigned long xl_bit, unsigned char code)
353 {
354 int i;
355
356 if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1)
357 return false;
358
359 for (i = 0; i < ARRAY_SIZE(xl_table); i++)
360 if (code == xl_table[i])
361 return test_bit(i, &xl_bit);
362
363 return true;
364 }
365
366 /*
367 * Calculates new value of xl_bit so the driver can distinguish
368 * between make/break pair of scancodes for select keys and PS/2
369 * protocol responses.
370 */
atkbd_calculate_xl_bit(struct atkbd * atkbd,unsigned char code)371 static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code)
372 {
373 int i;
374
375 for (i = 0; i < ARRAY_SIZE(xl_table); i++) {
376 if (!((code ^ xl_table[i]) & 0x7f)) {
377 if (code & 0x80)
378 __clear_bit(i, &atkbd->xl_bit);
379 else
380 __set_bit(i, &atkbd->xl_bit);
381 break;
382 }
383 }
384 }
385
386 /*
387 * Encode the scancode, 0xe0 prefix, and high bit into a single integer,
388 * keeping kernel 2.4 compatibility for set 2
389 */
atkbd_compat_scancode(struct atkbd * atkbd,unsigned int code)390 static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code)
391 {
392 if (atkbd->set == 3) {
393 if (atkbd->emul == 1)
394 code |= 0x100;
395 } else {
396 code = (code & 0x7f) | ((code & 0x80) << 1);
397 if (atkbd->emul == 1)
398 code |= 0x80;
399 }
400
401 return code;
402 }
403
404 /*
405 * atkbd_interrupt(). Here takes place processing of data received from
406 * the keyboard into events.
407 */
408
atkbd_interrupt(struct serio * serio,unsigned char data,unsigned int flags)409 static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
410 unsigned int flags)
411 {
412 struct atkbd *atkbd = serio_get_drvdata(serio);
413 struct input_dev *dev = atkbd->dev;
414 unsigned int code = data;
415 int scroll = 0, hscroll = 0, click = -1;
416 int value;
417 unsigned short keycode;
418
419 dev_dbg(&serio->dev, "Received %02x flags %02x\n", data, flags);
420
421 #if !defined(__i386__) && !defined (__x86_64__)
422 if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
423 dev_warn(&serio->dev, "Frame/parity error: %02x\n", flags);
424 serio_write(serio, ATKBD_CMD_RESEND);
425 atkbd->resend = true;
426 goto out;
427 }
428
429 if (!flags && data == ATKBD_RET_ACK)
430 atkbd->resend = false;
431 #endif
432
433 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK))
434 if (ps2_handle_ack(&atkbd->ps2dev, data))
435 goto out;
436
437 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD))
438 if (ps2_handle_response(&atkbd->ps2dev, data))
439 goto out;
440
441 pm_wakeup_event(&serio->dev, 0);
442
443 if (!atkbd->enabled)
444 goto out;
445
446 input_event(dev, EV_MSC, MSC_RAW, code);
447
448 if (atkbd_platform_scancode_fixup)
449 code = atkbd_platform_scancode_fixup(atkbd, code);
450
451 if (atkbd->translated) {
452
453 if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) {
454 atkbd->release = code >> 7;
455 code &= 0x7f;
456 }
457
458 if (!atkbd->emul)
459 atkbd_calculate_xl_bit(atkbd, data);
460 }
461
462 switch (code) {
463 case ATKBD_RET_BAT:
464 atkbd->enabled = false;
465 serio_reconnect(atkbd->ps2dev.serio);
466 goto out;
467 case ATKBD_RET_EMUL0:
468 atkbd->emul = 1;
469 goto out;
470 case ATKBD_RET_EMUL1:
471 atkbd->emul = 2;
472 goto out;
473 case ATKBD_RET_RELEASE:
474 atkbd->release = true;
475 goto out;
476 case ATKBD_RET_ACK:
477 case ATKBD_RET_NAK:
478 if (printk_ratelimit())
479 dev_warn(&serio->dev,
480 "Spurious %s on %s. "
481 "Some program might be trying to access hardware directly.\n",
482 data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
483 goto out;
484 case ATKBD_RET_ERR:
485 atkbd->err_count++;
486 dev_dbg(&serio->dev, "Keyboard on %s reports too many keys pressed.\n",
487 serio->phys);
488 goto out;
489 }
490
491 code = atkbd_compat_scancode(atkbd, code);
492
493 if (atkbd->emul && --atkbd->emul)
494 goto out;
495
496 keycode = atkbd->keycode[code];
497
498 if (!(atkbd->release && test_bit(code, atkbd->force_release_mask)))
499 if (keycode != ATKBD_KEY_NULL)
500 input_event(dev, EV_MSC, MSC_SCAN, code);
501
502 switch (keycode) {
503 case ATKBD_KEY_NULL:
504 break;
505 case ATKBD_KEY_UNKNOWN:
506 dev_warn(&serio->dev,
507 "Unknown key %s (%s set %d, code %#x on %s).\n",
508 atkbd->release ? "released" : "pressed",
509 atkbd->translated ? "translated" : "raw",
510 atkbd->set, code, serio->phys);
511 dev_warn(&serio->dev,
512 "Use 'setkeycodes %s%02x <keycode>' to make it known.\n",
513 code & 0x80 ? "e0" : "", code & 0x7f);
514 input_sync(dev);
515 break;
516 case ATKBD_SCR_1:
517 scroll = 1;
518 break;
519 case ATKBD_SCR_2:
520 scroll = 2;
521 break;
522 case ATKBD_SCR_4:
523 scroll = 4;
524 break;
525 case ATKBD_SCR_8:
526 scroll = 8;
527 break;
528 case ATKBD_SCR_CLICK:
529 click = !atkbd->release;
530 break;
531 case ATKBD_SCR_LEFT:
532 hscroll = -1;
533 break;
534 case ATKBD_SCR_RIGHT:
535 hscroll = 1;
536 break;
537 default:
538 if (atkbd->release) {
539 value = 0;
540 atkbd->last = 0;
541 } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) {
542 /* Workaround Toshiba laptop multiple keypress */
543 value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2;
544 } else {
545 value = 1;
546 atkbd->last = code;
547 atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2;
548 }
549
550 input_event(dev, EV_KEY, keycode, value);
551 input_sync(dev);
552
553 if (value && test_bit(code, atkbd->force_release_mask)) {
554 input_event(dev, EV_MSC, MSC_SCAN, code);
555 input_report_key(dev, keycode, 0);
556 input_sync(dev);
557 }
558 }
559
560 if (atkbd->scroll) {
561 if (click != -1)
562 input_report_key(dev, BTN_MIDDLE, click);
563 input_report_rel(dev, REL_WHEEL,
564 atkbd->release ? -scroll : scroll);
565 input_report_rel(dev, REL_HWHEEL, hscroll);
566 input_sync(dev);
567 }
568
569 atkbd->release = false;
570 out:
571 return IRQ_HANDLED;
572 }
573
atkbd_set_repeat_rate(struct atkbd * atkbd)574 static int atkbd_set_repeat_rate(struct atkbd *atkbd)
575 {
576 const short period[32] =
577 { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125,
578 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 };
579 const short delay[4] =
580 { 250, 500, 750, 1000 };
581
582 struct input_dev *dev = atkbd->dev;
583 unsigned char param;
584 int i = 0, j = 0;
585
586 while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD])
587 i++;
588 dev->rep[REP_PERIOD] = period[i];
589
590 while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY])
591 j++;
592 dev->rep[REP_DELAY] = delay[j];
593
594 param = i | (j << 5);
595 return ps2_command(&atkbd->ps2dev, ¶m, ATKBD_CMD_SETREP);
596 }
597
atkbd_set_leds(struct atkbd * atkbd)598 static int atkbd_set_leds(struct atkbd *atkbd)
599 {
600 struct input_dev *dev = atkbd->dev;
601 unsigned char param[2];
602
603 param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
604 | (test_bit(LED_NUML, dev->led) ? 2 : 0)
605 | (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
606 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
607 return -1;
608
609 if (atkbd->extra) {
610 param[0] = 0;
611 param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
612 | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
613 | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
614 | (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
615 | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
616 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS))
617 return -1;
618 }
619
620 return 0;
621 }
622
623 /*
624 * atkbd_event_work() is used to complete processing of events that
625 * can not be processed by input_event() which is often called from
626 * interrupt context.
627 */
628
atkbd_event_work(struct work_struct * work)629 static void atkbd_event_work(struct work_struct *work)
630 {
631 struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work);
632
633 mutex_lock(&atkbd->mutex);
634
635 if (!atkbd->enabled) {
636 /*
637 * Serio ports are resumed asynchronously so while driver core
638 * thinks that device is already fully operational in reality
639 * it may not be ready yet. In this case we need to keep
640 * rescheduling till reconnect completes.
641 */
642 schedule_delayed_work(&atkbd->event_work,
643 msecs_to_jiffies(100));
644 } else {
645 if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask))
646 atkbd_set_leds(atkbd);
647
648 if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask))
649 atkbd_set_repeat_rate(atkbd);
650 }
651
652 mutex_unlock(&atkbd->mutex);
653 }
654
655 /*
656 * Schedule switch for execution. We need to throttle requests,
657 * otherwise keyboard may become unresponsive.
658 */
atkbd_schedule_event_work(struct atkbd * atkbd,int event_bit)659 static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit)
660 {
661 unsigned long delay = msecs_to_jiffies(50);
662
663 if (time_after(jiffies, atkbd->event_jiffies + delay))
664 delay = 0;
665
666 atkbd->event_jiffies = jiffies;
667 set_bit(event_bit, &atkbd->event_mask);
668 mb();
669 schedule_delayed_work(&atkbd->event_work, delay);
670 }
671
672 /*
673 * Event callback from the input module. Events that change the state of
674 * the hardware are processed here. If action can not be performed in
675 * interrupt context it is offloaded to atkbd_event_work.
676 */
677
atkbd_event(struct input_dev * dev,unsigned int type,unsigned int code,int value)678 static int atkbd_event(struct input_dev *dev,
679 unsigned int type, unsigned int code, int value)
680 {
681 struct atkbd *atkbd = input_get_drvdata(dev);
682
683 if (!atkbd->write)
684 return -1;
685
686 switch (type) {
687
688 case EV_LED:
689 atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT);
690 return 0;
691
692 case EV_REP:
693 if (!atkbd->softrepeat)
694 atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT);
695 return 0;
696
697 default:
698 return -1;
699 }
700 }
701
702 /*
703 * atkbd_enable() signals that interrupt handler is allowed to
704 * generate input events.
705 */
706
atkbd_enable(struct atkbd * atkbd)707 static inline void atkbd_enable(struct atkbd *atkbd)
708 {
709 serio_pause_rx(atkbd->ps2dev.serio);
710 atkbd->enabled = true;
711 serio_continue_rx(atkbd->ps2dev.serio);
712 }
713
714 /*
715 * atkbd_disable() tells input handler that all incoming data except
716 * for ACKs and command response should be dropped.
717 */
718
atkbd_disable(struct atkbd * atkbd)719 static inline void atkbd_disable(struct atkbd *atkbd)
720 {
721 serio_pause_rx(atkbd->ps2dev.serio);
722 atkbd->enabled = false;
723 serio_continue_rx(atkbd->ps2dev.serio);
724 }
725
atkbd_activate(struct atkbd * atkbd)726 static int atkbd_activate(struct atkbd *atkbd)
727 {
728 struct ps2dev *ps2dev = &atkbd->ps2dev;
729
730 /*
731 * Enable the keyboard to receive keystrokes.
732 */
733
734 if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) {
735 dev_err(&ps2dev->serio->dev,
736 "Failed to enable keyboard on %s\n",
737 ps2dev->serio->phys);
738 return -1;
739 }
740
741 return 0;
742 }
743
744 /*
745 * atkbd_deactivate() resets and disables the keyboard from sending
746 * keystrokes.
747 */
748
atkbd_deactivate(struct atkbd * atkbd)749 static void atkbd_deactivate(struct atkbd *atkbd)
750 {
751 struct ps2dev *ps2dev = &atkbd->ps2dev;
752
753 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_DIS))
754 dev_err(&ps2dev->serio->dev,
755 "Failed to deactivate keyboard on %s\n",
756 ps2dev->serio->phys);
757 }
758
759 #ifdef CONFIG_X86
atkbd_is_portable_device(void)760 static bool atkbd_is_portable_device(void)
761 {
762 static const char * const chassis_types[] = {
763 "8", /* Portable */
764 "9", /* Laptop */
765 "10", /* Notebook */
766 "14", /* Sub-Notebook */
767 "31", /* Convertible */
768 "32", /* Detachable */
769 };
770 int i;
771
772 for (i = 0; i < ARRAY_SIZE(chassis_types); i++)
773 if (dmi_match(DMI_CHASSIS_TYPE, chassis_types[i]))
774 return true;
775
776 return false;
777 }
778
779 /*
780 * On many modern laptops ATKBD_CMD_GETID may cause problems, on these laptops
781 * the controller is always in translated mode. In this mode mice/touchpads will
782 * not work. So in this case simply assume a keyboard is connected to avoid
783 * confusing some laptop keyboards.
784 *
785 * Skipping ATKBD_CMD_GETID ends up using a fake keyboard id. Using the standard
786 * 0xab83 id is ok in translated mode, only atkbd_select_set() checks atkbd->id
787 * and in translated mode that is a no-op.
788 */
atkbd_skip_getid(struct atkbd * atkbd)789 static bool atkbd_skip_getid(struct atkbd *atkbd)
790 {
791 return atkbd->translated && atkbd_is_portable_device();
792 }
793 #else
atkbd_skip_getid(struct atkbd * atkbd)794 static inline bool atkbd_skip_getid(struct atkbd *atkbd) { return false; }
795 #endif
796
797 /*
798 * atkbd_probe() probes for an AT keyboard on a serio port.
799 */
800
atkbd_probe(struct atkbd * atkbd)801 static int atkbd_probe(struct atkbd *atkbd)
802 {
803 struct ps2dev *ps2dev = &atkbd->ps2dev;
804 unsigned char param[2];
805
806 /*
807 * Some systems, where the bit-twiddling when testing the io-lines of the
808 * controller may confuse the keyboard need a full reset of the keyboard. On
809 * these systems the BIOS also usually doesn't do it for us.
810 */
811
812 if (atkbd_reset)
813 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT))
814 dev_warn(&ps2dev->serio->dev,
815 "keyboard reset failed on %s\n",
816 ps2dev->serio->phys);
817
818 if (atkbd_skip_getid(atkbd)) {
819 atkbd->id = 0xab83;
820 return 0;
821 }
822
823 /*
824 * Then we check the keyboard ID. We should get 0xab83 under normal conditions.
825 * Some keyboards report different values, but the first byte is always 0xab or
826 * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
827 * should make sure we don't try to set the LEDs on it.
828 */
829
830 param[0] = param[1] = 0xa5; /* initialize with invalid values */
831 if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) {
832
833 /*
834 * If the get ID command failed, we check if we can at least set
835 * the LEDs on the keyboard. This should work on every keyboard out there.
836 * It also turns the LEDs off, which we want anyway.
837 */
838 param[0] = 0;
839 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
840 return -1;
841 atkbd->id = 0xabba;
842 return 0;
843 }
844
845 if (!ps2_is_keyboard_id(param[0]))
846 return -1;
847
848 atkbd->id = (param[0] << 8) | param[1];
849
850 if (atkbd->id == 0xaca1 && atkbd->translated) {
851 dev_err(&ps2dev->serio->dev,
852 "NCD terminal keyboards are only supported on non-translating controllers. "
853 "Use i8042.direct=1 to disable translation.\n");
854 return -1;
855 }
856
857 /*
858 * Make sure nothing is coming from the keyboard and disturbs our
859 * internal state.
860 */
861 if (!atkbd_skip_deactivate)
862 atkbd_deactivate(atkbd);
863
864 return 0;
865 }
866
867 /*
868 * atkbd_select_set checks if a keyboard has a working Set 3 support, and
869 * sets it into that. Unfortunately there are keyboards that can be switched
870 * to Set 3, but don't work well in that (BTC Multimedia ...)
871 */
872
atkbd_select_set(struct atkbd * atkbd,int target_set,int allow_extra)873 static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra)
874 {
875 struct ps2dev *ps2dev = &atkbd->ps2dev;
876 unsigned char param[2];
877
878 atkbd->extra = false;
879 /*
880 * For known special keyboards we can go ahead and set the correct set.
881 * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and
882 * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards.
883 */
884
885 if (atkbd->translated)
886 return 2;
887
888 if (atkbd->id == 0xaca1) {
889 param[0] = 3;
890 ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET);
891 return 3;
892 }
893
894 if (allow_extra) {
895 param[0] = 0x71;
896 if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) {
897 atkbd->extra = true;
898 return 2;
899 }
900 }
901
902 if (atkbd_terminal) {
903 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MB);
904 return 3;
905 }
906
907 if (target_set != 3)
908 return 2;
909
910 if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) {
911 atkbd->id = param[0] << 8 | param[1];
912 return 2;
913 }
914
915 param[0] = 3;
916 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
917 return 2;
918
919 param[0] = 0;
920 if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET))
921 return 2;
922
923 if (param[0] != 3) {
924 param[0] = 2;
925 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
926 return 2;
927 }
928
929 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR);
930
931 return 3;
932 }
933
atkbd_reset_state(struct atkbd * atkbd)934 static int atkbd_reset_state(struct atkbd *atkbd)
935 {
936 struct ps2dev *ps2dev = &atkbd->ps2dev;
937 unsigned char param[1];
938
939 /*
940 * Set the LEDs to a predefined state (all off).
941 */
942
943 param[0] = 0;
944 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
945 return -1;
946
947 /*
948 * Set autorepeat to fastest possible.
949 */
950
951 param[0] = 0;
952 if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP))
953 return -1;
954
955 return 0;
956 }
957
958 /*
959 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
960 * reboot.
961 */
962
atkbd_cleanup(struct serio * serio)963 static void atkbd_cleanup(struct serio *serio)
964 {
965 struct atkbd *atkbd = serio_get_drvdata(serio);
966
967 atkbd_disable(atkbd);
968 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_DEF);
969 }
970
971
972 /*
973 * atkbd_disconnect() closes and frees.
974 */
975
atkbd_disconnect(struct serio * serio)976 static void atkbd_disconnect(struct serio *serio)
977 {
978 struct atkbd *atkbd = serio_get_drvdata(serio);
979
980 sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
981
982 atkbd_disable(atkbd);
983
984 input_unregister_device(atkbd->dev);
985
986 /*
987 * Make sure we don't have a command in flight.
988 * Note that since atkbd->enabled is false event work will keep
989 * rescheduling itself until it gets canceled and will not try
990 * accessing freed input device or serio port.
991 */
992 cancel_delayed_work_sync(&atkbd->event_work);
993
994 serio_close(serio);
995 serio_set_drvdata(serio, NULL);
996 kfree(atkbd);
997 }
998
999 /*
1000 * generate release events for the keycodes given in data
1001 */
atkbd_apply_forced_release_keylist(struct atkbd * atkbd,const void * data)1002 static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
1003 const void *data)
1004 {
1005 const unsigned int *keys = data;
1006 unsigned int i;
1007
1008 if (atkbd->set == 2)
1009 for (i = 0; keys[i] != -1U; i++)
1010 __set_bit(keys[i], atkbd->force_release_mask);
1011 }
1012
1013 /*
1014 * Most special keys (Fn+F?) on Dell laptops do not generate release
1015 * events so we have to do it ourselves.
1016 */
1017 static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
1018 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
1019 };
1020
1021 /*
1022 * Perform fixup for HP system that doesn't generate release
1023 * for its video switch
1024 */
1025 static unsigned int atkbd_hp_forced_release_keys[] = {
1026 0x94, -1U
1027 };
1028
1029 /*
1030 * Samsung NC10,NC20 with Fn+F? key release not working
1031 */
1032 static unsigned int atkbd_samsung_forced_release_keys[] = {
1033 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
1034 };
1035
1036 /*
1037 * Amilo Pi 3525 key release for Fn+Volume keys not working
1038 */
1039 static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = {
1040 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U
1041 };
1042
1043 /*
1044 * Amilo Xi 3650 key release for light touch bar not working
1045 */
1046 static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
1047 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U
1048 };
1049
1050 /*
1051 * Soltech TA12 system with broken key release on volume keys and mute key
1052 */
1053 static unsigned int atkdb_soltech_ta12_forced_release_keys[] = {
1054 0xa0, 0xae, 0xb0, -1U
1055 };
1056
1057 /*
1058 * Many notebooks don't send key release event for volume up/down
1059 * keys, with key list below common among them
1060 */
1061 static unsigned int atkbd_volume_forced_release_keys[] = {
1062 0xae, 0xb0, -1U
1063 };
1064
1065 /*
1066 * OQO 01+ multimedia keys (64--66) generate e0 6x upon release whereas
1067 * they should be generating e4-e6 (0x80 | code).
1068 */
atkbd_oqo_01plus_scancode_fixup(struct atkbd * atkbd,unsigned int code)1069 static unsigned int atkbd_oqo_01plus_scancode_fixup(struct atkbd *atkbd,
1070 unsigned int code)
1071 {
1072 if (atkbd->translated && atkbd->emul == 1 &&
1073 (code == 0x64 || code == 0x65 || code == 0x66)) {
1074 atkbd->emul = 0;
1075 code |= 0x80;
1076 }
1077
1078 return code;
1079 }
1080
atkbd_get_keymap_from_fwnode(struct atkbd * atkbd)1081 static int atkbd_get_keymap_from_fwnode(struct atkbd *atkbd)
1082 {
1083 struct device *dev = &atkbd->ps2dev.serio->dev;
1084 int i, n;
1085 u32 *ptr;
1086 u16 scancode, keycode;
1087
1088 /* Parse "linux,keymap" property */
1089 n = device_property_count_u32(dev, "linux,keymap");
1090 if (n <= 0 || n > ATKBD_KEYMAP_SIZE)
1091 return -ENXIO;
1092
1093 ptr = kcalloc(n, sizeof(u32), GFP_KERNEL);
1094 if (!ptr)
1095 return -ENOMEM;
1096
1097 if (device_property_read_u32_array(dev, "linux,keymap", ptr, n)) {
1098 dev_err(dev, "problem parsing FW keymap property\n");
1099 kfree(ptr);
1100 return -EINVAL;
1101 }
1102
1103 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
1104 for (i = 0; i < n; i++) {
1105 scancode = SCANCODE(ptr[i]);
1106 keycode = KEYCODE(ptr[i]);
1107 atkbd->keycode[scancode] = keycode;
1108 }
1109
1110 kfree(ptr);
1111 return 0;
1112 }
1113
1114 /*
1115 * atkbd_set_keycode_table() initializes keyboard's keycode table
1116 * according to the selected scancode set
1117 */
1118
atkbd_set_keycode_table(struct atkbd * atkbd)1119 static void atkbd_set_keycode_table(struct atkbd *atkbd)
1120 {
1121 struct device *dev = &atkbd->ps2dev.serio->dev;
1122 unsigned int scancode;
1123 int i, j;
1124
1125 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
1126 bitmap_zero(atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1127
1128 if (!atkbd_get_keymap_from_fwnode(atkbd)) {
1129 dev_dbg(dev, "Using FW keymap\n");
1130 } else if (atkbd->translated) {
1131 for (i = 0; i < 128; i++) {
1132 scancode = atkbd_unxlate_table[i];
1133 atkbd->keycode[i] = atkbd_set2_keycode[scancode];
1134 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
1135 if (atkbd->scroll)
1136 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
1137 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
1138 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
1139 }
1140 } else if (atkbd->set == 3) {
1141 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
1142 } else {
1143 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
1144
1145 if (atkbd->scroll)
1146 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
1147 scancode = atkbd_scroll_keys[i].set2;
1148 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
1149 }
1150 }
1151
1152 /*
1153 * HANGEUL and HANJA keys do not send release events so we need to
1154 * generate such events ourselves
1155 */
1156 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
1157 atkbd->keycode[scancode] = KEY_HANGEUL;
1158 __set_bit(scancode, atkbd->force_release_mask);
1159
1160 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
1161 atkbd->keycode[scancode] = KEY_HANJA;
1162 __set_bit(scancode, atkbd->force_release_mask);
1163
1164 /*
1165 * Perform additional fixups
1166 */
1167 if (atkbd_platform_fixup)
1168 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
1169 }
1170
1171 /*
1172 * atkbd_set_device_attrs() sets up keyboard's input device structure
1173 */
1174
atkbd_set_device_attrs(struct atkbd * atkbd)1175 static void atkbd_set_device_attrs(struct atkbd *atkbd)
1176 {
1177 struct input_dev *input_dev = atkbd->dev;
1178 int i;
1179
1180 if (atkbd->extra)
1181 snprintf(atkbd->name, sizeof(atkbd->name),
1182 "AT Set 2 Extra keyboard");
1183 else
1184 snprintf(atkbd->name, sizeof(atkbd->name),
1185 "AT %s Set %d keyboard",
1186 atkbd->translated ? "Translated" : "Raw", atkbd->set);
1187
1188 snprintf(atkbd->phys, sizeof(atkbd->phys),
1189 "%s/input0", atkbd->ps2dev.serio->phys);
1190
1191 input_dev->name = atkbd->name;
1192 input_dev->phys = atkbd->phys;
1193 input_dev->id.bustype = BUS_I8042;
1194 input_dev->id.vendor = 0x0001;
1195 input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
1196 input_dev->id.version = atkbd->id;
1197 input_dev->event = atkbd_event;
1198 input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
1199
1200 input_set_drvdata(input_dev, atkbd);
1201
1202 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
1203 BIT_MASK(EV_MSC);
1204
1205 if (atkbd->write) {
1206 input_dev->evbit[0] |= BIT_MASK(EV_LED);
1207 input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
1208 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
1209 }
1210
1211 if (atkbd->extra)
1212 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
1213 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
1214 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
1215
1216 if (!atkbd->softrepeat) {
1217 input_dev->rep[REP_DELAY] = 250;
1218 input_dev->rep[REP_PERIOD] = 33;
1219 }
1220
1221 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
1222 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
1223
1224 if (atkbd->scroll) {
1225 input_dev->evbit[0] |= BIT_MASK(EV_REL);
1226 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
1227 BIT_MASK(REL_HWHEEL);
1228 __set_bit(BTN_MIDDLE, input_dev->keybit);
1229 }
1230
1231 input_dev->keycode = atkbd->keycode;
1232 input_dev->keycodesize = sizeof(unsigned short);
1233 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
1234
1235 for (i = 0; i < ATKBD_KEYMAP_SIZE; i++) {
1236 if (atkbd->keycode[i] != KEY_RESERVED &&
1237 atkbd->keycode[i] != ATKBD_KEY_NULL &&
1238 atkbd->keycode[i] < ATKBD_SPECIAL) {
1239 __set_bit(atkbd->keycode[i], input_dev->keybit);
1240 }
1241 }
1242 }
1243
atkbd_parse_fwnode_data(struct serio * serio)1244 static void atkbd_parse_fwnode_data(struct serio *serio)
1245 {
1246 struct atkbd *atkbd = serio_get_drvdata(serio);
1247 struct device *dev = &serio->dev;
1248 int n;
1249
1250 /* Parse "function-row-physmap" property */
1251 n = device_property_count_u32(dev, "function-row-physmap");
1252 if (n > 0 && n <= MAX_FUNCTION_ROW_KEYS &&
1253 !device_property_read_u32_array(dev, "function-row-physmap",
1254 atkbd->function_row_physmap, n)) {
1255 atkbd->num_function_row_keys = n;
1256 dev_dbg(dev, "FW reported %d function-row key locations\n", n);
1257 }
1258 }
1259
1260 /*
1261 * atkbd_connect() is called when the serio module finds an interface
1262 * that isn't handled yet by an appropriate device driver. We check if
1263 * there is an AT keyboard out there and if yes, we register ourselves
1264 * to the input module.
1265 */
1266
atkbd_connect(struct serio * serio,struct serio_driver * drv)1267 static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
1268 {
1269 struct atkbd *atkbd;
1270 struct input_dev *dev;
1271 int err = -ENOMEM;
1272
1273 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
1274 dev = input_allocate_device();
1275 if (!atkbd || !dev)
1276 goto fail1;
1277
1278 atkbd->dev = dev;
1279 ps2_init(&atkbd->ps2dev, serio);
1280 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
1281 mutex_init(&atkbd->mutex);
1282
1283 switch (serio->id.type) {
1284
1285 case SERIO_8042_XL:
1286 atkbd->translated = true;
1287 fallthrough;
1288
1289 case SERIO_8042:
1290 if (serio->write)
1291 atkbd->write = true;
1292 break;
1293 }
1294
1295 atkbd->softraw = atkbd_softraw;
1296 atkbd->softrepeat = atkbd_softrepeat;
1297 atkbd->scroll = atkbd_scroll;
1298
1299 if (atkbd->softrepeat)
1300 atkbd->softraw = true;
1301
1302 serio_set_drvdata(serio, atkbd);
1303
1304 err = serio_open(serio, drv);
1305 if (err)
1306 goto fail2;
1307
1308 if (atkbd->write) {
1309
1310 if (atkbd_probe(atkbd)) {
1311 err = -ENODEV;
1312 goto fail3;
1313 }
1314
1315 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
1316 atkbd_reset_state(atkbd);
1317
1318 } else {
1319 atkbd->set = 2;
1320 atkbd->id = 0xab00;
1321 }
1322
1323 atkbd_parse_fwnode_data(serio);
1324
1325 atkbd_set_keycode_table(atkbd);
1326 atkbd_set_device_attrs(atkbd);
1327
1328 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group);
1329 if (err)
1330 goto fail3;
1331
1332 atkbd_enable(atkbd);
1333 if (serio->write)
1334 atkbd_activate(atkbd);
1335
1336 err = input_register_device(atkbd->dev);
1337 if (err)
1338 goto fail4;
1339
1340 return 0;
1341
1342 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
1343 fail3: serio_close(serio);
1344 fail2: serio_set_drvdata(serio, NULL);
1345 fail1: input_free_device(dev);
1346 kfree(atkbd);
1347 return err;
1348 }
1349
1350 /*
1351 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1352 * most likely called on resume.
1353 */
1354
atkbd_reconnect(struct serio * serio)1355 static int atkbd_reconnect(struct serio *serio)
1356 {
1357 struct atkbd *atkbd = serio_get_drvdata(serio);
1358 struct serio_driver *drv = serio->drv;
1359 int retval = -1;
1360
1361 if (!atkbd || !drv) {
1362 dev_dbg(&serio->dev,
1363 "reconnect request, but serio is disconnected, ignoring...\n");
1364 return -1;
1365 }
1366
1367 mutex_lock(&atkbd->mutex);
1368
1369 atkbd_disable(atkbd);
1370
1371 if (atkbd->write) {
1372 if (atkbd_probe(atkbd))
1373 goto out;
1374
1375 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
1376 goto out;
1377
1378 /*
1379 * Restore LED state and repeat rate. While input core
1380 * will do this for us at resume time reconnect may happen
1381 * because user requested it via sysfs or simply because
1382 * keyboard was unplugged and plugged in again so we need
1383 * to do it ourselves here.
1384 */
1385 atkbd_set_leds(atkbd);
1386 if (!atkbd->softrepeat)
1387 atkbd_set_repeat_rate(atkbd);
1388
1389 }
1390
1391 /*
1392 * Reset our state machine in case reconnect happened in the middle
1393 * of multi-byte scancode.
1394 */
1395 atkbd->xl_bit = 0;
1396 atkbd->emul = 0;
1397
1398 atkbd_enable(atkbd);
1399 if (atkbd->write)
1400 atkbd_activate(atkbd);
1401
1402 retval = 0;
1403
1404 out:
1405 mutex_unlock(&atkbd->mutex);
1406 return retval;
1407 }
1408
1409 static const struct serio_device_id atkbd_serio_ids[] = {
1410 {
1411 .type = SERIO_8042,
1412 .proto = SERIO_ANY,
1413 .id = SERIO_ANY,
1414 .extra = SERIO_ANY,
1415 },
1416 {
1417 .type = SERIO_8042_XL,
1418 .proto = SERIO_ANY,
1419 .id = SERIO_ANY,
1420 .extra = SERIO_ANY,
1421 },
1422 {
1423 .type = SERIO_RS232,
1424 .proto = SERIO_PS2SER,
1425 .id = SERIO_ANY,
1426 .extra = SERIO_ANY,
1427 },
1428 { 0 }
1429 };
1430
1431 MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1432
1433 static struct serio_driver atkbd_drv = {
1434 .driver = {
1435 .name = "atkbd",
1436 },
1437 .description = DRIVER_DESC,
1438 .id_table = atkbd_serio_ids,
1439 .interrupt = atkbd_interrupt,
1440 .connect = atkbd_connect,
1441 .reconnect = atkbd_reconnect,
1442 .disconnect = atkbd_disconnect,
1443 .cleanup = atkbd_cleanup,
1444 };
1445
atkbd_attr_show_helper(struct device * dev,char * buf,ssize_t (* handler)(struct atkbd *,char *))1446 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1447 ssize_t (*handler)(struct atkbd *, char *))
1448 {
1449 struct serio *serio = to_serio_port(dev);
1450 struct atkbd *atkbd = serio_get_drvdata(serio);
1451
1452 return handler(atkbd, buf);
1453 }
1454
atkbd_attr_set_helper(struct device * dev,const char * buf,size_t count,ssize_t (* handler)(struct atkbd *,const char *,size_t))1455 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1456 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1457 {
1458 struct serio *serio = to_serio_port(dev);
1459 struct atkbd *atkbd = serio_get_drvdata(serio);
1460 int retval;
1461
1462 retval = mutex_lock_interruptible(&atkbd->mutex);
1463 if (retval)
1464 return retval;
1465
1466 atkbd_disable(atkbd);
1467 retval = handler(atkbd, buf, count);
1468 atkbd_enable(atkbd);
1469
1470 mutex_unlock(&atkbd->mutex);
1471
1472 return retval;
1473 }
1474
atkbd_show_extra(struct atkbd * atkbd,char * buf)1475 static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1476 {
1477 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1478 }
1479
atkbd_set_extra(struct atkbd * atkbd,const char * buf,size_t count)1480 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1481 {
1482 struct input_dev *old_dev, *new_dev;
1483 unsigned int value;
1484 int err;
1485 bool old_extra;
1486 unsigned char old_set;
1487
1488 if (!atkbd->write)
1489 return -EIO;
1490
1491 err = kstrtouint(buf, 10, &value);
1492 if (err)
1493 return err;
1494
1495 if (value > 1)
1496 return -EINVAL;
1497
1498 if (atkbd->extra != value) {
1499 /*
1500 * Since device's properties will change we need to
1501 * unregister old device. But allocate and register
1502 * new one first to make sure we have it.
1503 */
1504 old_dev = atkbd->dev;
1505 old_extra = atkbd->extra;
1506 old_set = atkbd->set;
1507
1508 new_dev = input_allocate_device();
1509 if (!new_dev)
1510 return -ENOMEM;
1511
1512 atkbd->dev = new_dev;
1513 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
1514 atkbd_reset_state(atkbd);
1515 atkbd_activate(atkbd);
1516 atkbd_set_keycode_table(atkbd);
1517 atkbd_set_device_attrs(atkbd);
1518
1519 err = input_register_device(atkbd->dev);
1520 if (err) {
1521 input_free_device(new_dev);
1522
1523 atkbd->dev = old_dev;
1524 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1525 atkbd_set_keycode_table(atkbd);
1526 atkbd_set_device_attrs(atkbd);
1527
1528 return err;
1529 }
1530 input_unregister_device(old_dev);
1531
1532 }
1533 return count;
1534 }
1535
atkbd_show_force_release(struct atkbd * atkbd,char * buf)1536 static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf)
1537 {
1538 size_t len = scnprintf(buf, PAGE_SIZE - 1, "%*pbl",
1539 ATKBD_KEYMAP_SIZE, atkbd->force_release_mask);
1540
1541 buf[len++] = '\n';
1542 buf[len] = '\0';
1543
1544 return len;
1545 }
1546
atkbd_set_force_release(struct atkbd * atkbd,const char * buf,size_t count)1547 static ssize_t atkbd_set_force_release(struct atkbd *atkbd,
1548 const char *buf, size_t count)
1549 {
1550 /* 64 bytes on stack should be acceptable */
1551 DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE);
1552 int err;
1553
1554 err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE);
1555 if (err)
1556 return err;
1557
1558 memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask));
1559 return count;
1560 }
1561
1562
atkbd_show_scroll(struct atkbd * atkbd,char * buf)1563 static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1564 {
1565 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1566 }
1567
atkbd_set_scroll(struct atkbd * atkbd,const char * buf,size_t count)1568 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1569 {
1570 struct input_dev *old_dev, *new_dev;
1571 unsigned int value;
1572 int err;
1573 bool old_scroll;
1574
1575 err = kstrtouint(buf, 10, &value);
1576 if (err)
1577 return err;
1578
1579 if (value > 1)
1580 return -EINVAL;
1581
1582 if (atkbd->scroll != value) {
1583 old_dev = atkbd->dev;
1584 old_scroll = atkbd->scroll;
1585
1586 new_dev = input_allocate_device();
1587 if (!new_dev)
1588 return -ENOMEM;
1589
1590 atkbd->dev = new_dev;
1591 atkbd->scroll = value;
1592 atkbd_set_keycode_table(atkbd);
1593 atkbd_set_device_attrs(atkbd);
1594
1595 err = input_register_device(atkbd->dev);
1596 if (err) {
1597 input_free_device(new_dev);
1598
1599 atkbd->scroll = old_scroll;
1600 atkbd->dev = old_dev;
1601 atkbd_set_keycode_table(atkbd);
1602 atkbd_set_device_attrs(atkbd);
1603
1604 return err;
1605 }
1606 input_unregister_device(old_dev);
1607 }
1608 return count;
1609 }
1610
atkbd_show_set(struct atkbd * atkbd,char * buf)1611 static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1612 {
1613 return sprintf(buf, "%d\n", atkbd->set);
1614 }
1615
atkbd_set_set(struct atkbd * atkbd,const char * buf,size_t count)1616 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1617 {
1618 struct input_dev *old_dev, *new_dev;
1619 unsigned int value;
1620 int err;
1621 unsigned char old_set;
1622 bool old_extra;
1623
1624 if (!atkbd->write)
1625 return -EIO;
1626
1627 err = kstrtouint(buf, 10, &value);
1628 if (err)
1629 return err;
1630
1631 if (value != 2 && value != 3)
1632 return -EINVAL;
1633
1634 if (atkbd->set != value) {
1635 old_dev = atkbd->dev;
1636 old_extra = atkbd->extra;
1637 old_set = atkbd->set;
1638
1639 new_dev = input_allocate_device();
1640 if (!new_dev)
1641 return -ENOMEM;
1642
1643 atkbd->dev = new_dev;
1644 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
1645 atkbd_reset_state(atkbd);
1646 atkbd_activate(atkbd);
1647 atkbd_set_keycode_table(atkbd);
1648 atkbd_set_device_attrs(atkbd);
1649
1650 err = input_register_device(atkbd->dev);
1651 if (err) {
1652 input_free_device(new_dev);
1653
1654 atkbd->dev = old_dev;
1655 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1656 atkbd_set_keycode_table(atkbd);
1657 atkbd_set_device_attrs(atkbd);
1658
1659 return err;
1660 }
1661 input_unregister_device(old_dev);
1662 }
1663 return count;
1664 }
1665
atkbd_show_softrepeat(struct atkbd * atkbd,char * buf)1666 static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1667 {
1668 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1669 }
1670
atkbd_set_softrepeat(struct atkbd * atkbd,const char * buf,size_t count)1671 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1672 {
1673 struct input_dev *old_dev, *new_dev;
1674 unsigned int value;
1675 int err;
1676 bool old_softrepeat, old_softraw;
1677
1678 if (!atkbd->write)
1679 return -EIO;
1680
1681 err = kstrtouint(buf, 10, &value);
1682 if (err)
1683 return err;
1684
1685 if (value > 1)
1686 return -EINVAL;
1687
1688 if (atkbd->softrepeat != value) {
1689 old_dev = atkbd->dev;
1690 old_softrepeat = atkbd->softrepeat;
1691 old_softraw = atkbd->softraw;
1692
1693 new_dev = input_allocate_device();
1694 if (!new_dev)
1695 return -ENOMEM;
1696
1697 atkbd->dev = new_dev;
1698 atkbd->softrepeat = value;
1699 if (atkbd->softrepeat)
1700 atkbd->softraw = true;
1701 atkbd_set_device_attrs(atkbd);
1702
1703 err = input_register_device(atkbd->dev);
1704 if (err) {
1705 input_free_device(new_dev);
1706
1707 atkbd->dev = old_dev;
1708 atkbd->softrepeat = old_softrepeat;
1709 atkbd->softraw = old_softraw;
1710 atkbd_set_device_attrs(atkbd);
1711
1712 return err;
1713 }
1714 input_unregister_device(old_dev);
1715 }
1716 return count;
1717 }
1718
1719
atkbd_show_softraw(struct atkbd * atkbd,char * buf)1720 static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1721 {
1722 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1723 }
1724
atkbd_set_softraw(struct atkbd * atkbd,const char * buf,size_t count)1725 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1726 {
1727 struct input_dev *old_dev, *new_dev;
1728 unsigned int value;
1729 int err;
1730 bool old_softraw;
1731
1732 err = kstrtouint(buf, 10, &value);
1733 if (err)
1734 return err;
1735
1736 if (value > 1)
1737 return -EINVAL;
1738
1739 if (atkbd->softraw != value) {
1740 old_dev = atkbd->dev;
1741 old_softraw = atkbd->softraw;
1742
1743 new_dev = input_allocate_device();
1744 if (!new_dev)
1745 return -ENOMEM;
1746
1747 atkbd->dev = new_dev;
1748 atkbd->softraw = value;
1749 atkbd_set_device_attrs(atkbd);
1750
1751 err = input_register_device(atkbd->dev);
1752 if (err) {
1753 input_free_device(new_dev);
1754
1755 atkbd->dev = old_dev;
1756 atkbd->softraw = old_softraw;
1757 atkbd_set_device_attrs(atkbd);
1758
1759 return err;
1760 }
1761 input_unregister_device(old_dev);
1762 }
1763 return count;
1764 }
1765
atkbd_show_err_count(struct atkbd * atkbd,char * buf)1766 static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1767 {
1768 return sprintf(buf, "%lu\n", atkbd->err_count);
1769 }
1770
atkbd_setup_forced_release(const struct dmi_system_id * id)1771 static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
1772 {
1773 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1774 atkbd_platform_fixup_data = id->driver_data;
1775
1776 return 1;
1777 }
1778
atkbd_setup_scancode_fixup(const struct dmi_system_id * id)1779 static int __init atkbd_setup_scancode_fixup(const struct dmi_system_id *id)
1780 {
1781 atkbd_platform_scancode_fixup = id->driver_data;
1782
1783 return 1;
1784 }
1785
atkbd_deactivate_fixup(const struct dmi_system_id * id)1786 static int __init atkbd_deactivate_fixup(const struct dmi_system_id *id)
1787 {
1788 atkbd_skip_deactivate = true;
1789 return 1;
1790 }
1791
1792 /*
1793 * NOTE: do not add any more "force release" quirks to this table. The
1794 * task of adjusting list of keys that should be "released" automatically
1795 * by the driver is now delegated to userspace tools, such as udev, so
1796 * submit such quirks there.
1797 */
1798 static const struct dmi_system_id atkbd_dmi_quirk_table[] __initconst = {
1799 {
1800 .matches = {
1801 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1802 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1803 },
1804 .callback = atkbd_setup_forced_release,
1805 .driver_data = atkbd_dell_laptop_forced_release_keys,
1806 },
1807 {
1808 .matches = {
1809 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1810 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1811 },
1812 .callback = atkbd_setup_forced_release,
1813 .driver_data = atkbd_dell_laptop_forced_release_keys,
1814 },
1815 {
1816 .matches = {
1817 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1818 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1819 },
1820 .callback = atkbd_setup_forced_release,
1821 .driver_data = atkbd_hp_forced_release_keys,
1822 },
1823 {
1824 .matches = {
1825 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1826 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1827 },
1828 .callback = atkbd_setup_forced_release,
1829 .driver_data = atkbd_volume_forced_release_keys,
1830 },
1831 {
1832 .matches = {
1833 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1834 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"),
1835 },
1836 .callback = atkbd_setup_forced_release,
1837 .driver_data = atkbd_volume_forced_release_keys,
1838 },
1839 {
1840 .matches = {
1841 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1842 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"),
1843 },
1844 .callback = atkbd_setup_forced_release,
1845 .driver_data = atkbd_volume_forced_release_keys,
1846 },
1847 {
1848 .matches = {
1849 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1850 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"),
1851 },
1852 .callback = atkbd_setup_forced_release,
1853 .driver_data = atkbd_volume_forced_release_keys,
1854 },
1855 {
1856 /* Inventec Symphony */
1857 .matches = {
1858 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1859 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1860 },
1861 .callback = atkbd_setup_forced_release,
1862 .driver_data = atkbd_volume_forced_release_keys,
1863 },
1864 {
1865 /* Samsung NC10 */
1866 .matches = {
1867 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1868 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1869 },
1870 .callback = atkbd_setup_forced_release,
1871 .driver_data = atkbd_samsung_forced_release_keys,
1872 },
1873 {
1874 /* Samsung NC20 */
1875 .matches = {
1876 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1877 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
1878 },
1879 .callback = atkbd_setup_forced_release,
1880 .driver_data = atkbd_samsung_forced_release_keys,
1881 },
1882 {
1883 /* Samsung SQ45S70S */
1884 .matches = {
1885 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1886 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
1887 },
1888 .callback = atkbd_setup_forced_release,
1889 .driver_data = atkbd_samsung_forced_release_keys,
1890 },
1891 {
1892 /* Fujitsu Amilo PA 1510 */
1893 .matches = {
1894 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1895 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1896 },
1897 .callback = atkbd_setup_forced_release,
1898 .driver_data = atkbd_volume_forced_release_keys,
1899 },
1900 {
1901 /* Fujitsu Amilo Pi 3525 */
1902 .matches = {
1903 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1904 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"),
1905 },
1906 .callback = atkbd_setup_forced_release,
1907 .driver_data = atkbd_amilo_pi3525_forced_release_keys,
1908 },
1909 {
1910 /* Fujitsu Amilo Xi 3650 */
1911 .matches = {
1912 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1913 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"),
1914 },
1915 .callback = atkbd_setup_forced_release,
1916 .driver_data = atkbd_amilo_xi3650_forced_release_keys,
1917 },
1918 {
1919 .matches = {
1920 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"),
1921 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"),
1922 },
1923 .callback = atkbd_setup_forced_release,
1924 .driver_data = atkdb_soltech_ta12_forced_release_keys,
1925 },
1926 {
1927 /* OQO Model 01+ */
1928 .matches = {
1929 DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
1930 DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
1931 },
1932 .callback = atkbd_setup_scancode_fixup,
1933 .driver_data = atkbd_oqo_01plus_scancode_fixup,
1934 },
1935 {
1936 .matches = {
1937 DMI_MATCH(DMI_SYS_VENDOR, "LG Electronics"),
1938 },
1939 .callback = atkbd_deactivate_fixup,
1940 },
1941 { }
1942 };
1943
atkbd_init(void)1944 static int __init atkbd_init(void)
1945 {
1946 dmi_check_system(atkbd_dmi_quirk_table);
1947
1948 return serio_register_driver(&atkbd_drv);
1949 }
1950
atkbd_exit(void)1951 static void __exit atkbd_exit(void)
1952 {
1953 serio_unregister_driver(&atkbd_drv);
1954 }
1955
1956 module_init(atkbd_init);
1957 module_exit(atkbd_exit);
1958