1 // SPDX-License-Identifier: GPL-2.0-only
3 * AT and PS/2 keyboard driver
5 * Copyright (c) 1999-2002 Vojtech Pavlik
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
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/input/vivaldi-fmap.h>
23 #include <linux/serio.h>
24 #include <linux/workqueue.h>
25 #include <linux/libps2.h>
26 #include <linux/mutex.h>
27 #include <linux/dmi.h>
28 #include <linux/property.h>
30 #define DRIVER_DESC "AT and PS/2 keyboard driver"
32 MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
33 MODULE_DESCRIPTION(DRIVER_DESC);
34 MODULE_LICENSE("GPL");
36 static int atkbd_set = 2;
37 module_param_named(set, atkbd_set, int, 0);
38 MODULE_PARM_DESC(set, "Select keyboard code set (2 = default, 3 = PS/2 native)");
40 #if defined(__i386__) || defined(__x86_64__) || defined(__hppa__)
41 static bool atkbd_reset;
43 static bool atkbd_reset = true;
45 module_param_named(reset, atkbd_reset, bool, 0);
46 MODULE_PARM_DESC(reset, "Reset keyboard during initialization");
48 static bool atkbd_softrepeat;
49 module_param_named(softrepeat, atkbd_softrepeat, bool, 0);
50 MODULE_PARM_DESC(softrepeat, "Use software keyboard repeat");
52 static bool atkbd_softraw = true;
53 module_param_named(softraw, atkbd_softraw, bool, 0);
54 MODULE_PARM_DESC(softraw, "Use software generated rawmode");
56 static bool atkbd_scroll;
57 module_param_named(scroll, atkbd_scroll, bool, 0);
58 MODULE_PARM_DESC(scroll, "Enable scroll-wheel on MS Office and similar keyboards");
60 static bool atkbd_extra;
61 module_param_named(extra, atkbd_extra, bool, 0);
62 MODULE_PARM_DESC(extra, "Enable extra LEDs and keys on IBM RapidAcces, EzKey and similar keyboards");
64 static bool atkbd_terminal;
65 module_param_named(terminal, atkbd_terminal, bool, 0);
66 MODULE_PARM_DESC(terminal, "Enable break codes on an IBM Terminal keyboard connected via AT/PS2");
68 #define SCANCODE(keymap) ((keymap >> 16) & 0xFFFF)
69 #define KEYCODE(keymap) (keymap & 0xFFFF)
72 * Scancode to keycode tables. These are just the default setting, and
73 * are loadable via a userland utility.
76 #define ATKBD_KEYMAP_SIZE 512
78 static const unsigned short atkbd_set2_keycode[ATKBD_KEYMAP_SIZE] = {
80 #ifdef CONFIG_KEYBOARD_ATKBD_HP_KEYCODES
82 /* XXX: need a more general approach */
84 #include "hpps2atkbd.h" /* include the keyboard scancodes */
87 0, 67, 65, 63, 61, 59, 60, 88, 0, 68, 66, 64, 62, 15, 41,117,
88 0, 56, 42, 93, 29, 16, 2, 0, 0, 0, 44, 31, 30, 17, 3, 0,
89 0, 46, 45, 32, 18, 5, 4, 95, 0, 57, 47, 33, 20, 19, 6,183,
90 0, 49, 48, 35, 34, 21, 7,184, 0, 0, 50, 36, 22, 8, 9,185,
91 0, 51, 37, 23, 24, 11, 10, 0, 0, 52, 53, 38, 39, 25, 12, 0,
92 0, 89, 40, 0, 26, 13, 0, 0, 58, 54, 28, 27, 0, 43, 0, 85,
93 0, 86, 91, 90, 92, 0, 14, 94, 0, 79,124, 75, 71,121, 0, 0,
94 82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99,
96 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
97 217,100,255, 0, 97,165, 0, 0,156, 0, 0, 0, 0, 0, 0,125,
98 173,114, 0,113, 0, 0, 0,126,128, 0, 0,140, 0, 0, 0,127,
99 159, 0,115, 0,164, 0, 0,116,158, 0,172,166, 0, 0, 0,142,
100 157, 0, 0, 0, 0, 0, 0, 0,155, 0, 98, 0, 0,163, 0, 0,
101 226, 0, 0, 0, 0, 0, 0, 0, 0,255, 96, 0, 0, 0,143, 0,
102 0, 0, 0, 0, 0, 0, 0, 0, 0,107, 0,105,102, 0, 0,112,
103 110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119, 0,
109 static const unsigned short atkbd_set3_keycode[ATKBD_KEYMAP_SIZE] = {
111 0, 0, 0, 0, 0, 0, 0, 59, 1,138,128,129,130, 15, 41, 60,
112 131, 29, 42, 86, 58, 16, 2, 61,133, 56, 44, 31, 30, 17, 3, 62,
113 134, 46, 45, 32, 18, 5, 4, 63,135, 57, 47, 33, 20, 19, 6, 64,
114 136, 49, 48, 35, 34, 21, 7, 65,137,100, 50, 36, 22, 8, 9, 66,
115 125, 51, 37, 23, 24, 11, 10, 67,126, 52, 53, 38, 39, 25, 12, 68,
116 113,114, 40, 43, 26, 13, 87, 99, 97, 54, 28, 27, 43, 43, 88, 70,
117 108,105,119,103,111,107, 14,110, 0, 79,106, 75, 71,109,102,104,
118 82, 83, 80, 76, 77, 72, 69, 98, 0, 96, 81, 0, 78, 73, 55,183,
120 184,185,186,187, 74, 94, 92, 93, 0, 0, 0,125,126,127,112, 0,
121 0,139,172,163,165,115,152,172,166,140,160,154,113,114,167,168,
125 static const unsigned short atkbd_unxlate_table[128] = {
126 0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13,
127 21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27,
128 35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42,
129 50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88, 5, 6, 4, 12, 3,
130 11, 2, 10, 1, 9,119,126,108,117,125,123,107,115,116,121,105,
131 114,122,112,113,127, 96, 97,120, 7, 15, 23, 31, 39, 47, 55, 63,
132 71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111,
133 19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110
136 #define ATKBD_CMD_SETLEDS 0x10ed
137 #define ATKBD_CMD_GSCANSET 0x11f0
138 #define ATKBD_CMD_SSCANSET 0x10f0
139 #define ATKBD_CMD_GETID 0x02f2
140 #define ATKBD_CMD_SETREP 0x10f3
141 #define ATKBD_CMD_ENABLE 0x00f4
142 #define ATKBD_CMD_RESET_DIS 0x00f5 /* Reset to defaults and disable */
143 #define ATKBD_CMD_RESET_DEF 0x00f6 /* Reset to defaults */
144 #define ATKBD_CMD_SETALL_MB 0x00f8 /* Set all keys to give break codes */
145 #define ATKBD_CMD_SETALL_MBR 0x00fa /* ... and repeat */
146 #define ATKBD_CMD_RESET_BAT 0x02ff
147 #define ATKBD_CMD_RESEND 0x00fe
148 #define ATKBD_CMD_EX_ENABLE 0x10ea
149 #define ATKBD_CMD_EX_SETLEDS 0x20eb
150 #define ATKBD_CMD_OK_GETID 0x02e8
152 #define ATKBD_RET_ACK 0xfa
153 #define ATKBD_RET_NAK 0xfe
154 #define ATKBD_RET_BAT 0xaa
155 #define ATKBD_RET_EMUL0 0xe0
156 #define ATKBD_RET_EMUL1 0xe1
157 #define ATKBD_RET_RELEASE 0xf0
158 #define ATKBD_RET_HANJA 0xf1
159 #define ATKBD_RET_HANGEUL 0xf2
160 #define ATKBD_RET_ERR 0xff
162 #define ATKBD_KEY_UNKNOWN 0
163 #define ATKBD_KEY_NULL 255
165 #define ATKBD_SCR_1 0xfffe
166 #define ATKBD_SCR_2 0xfffd
167 #define ATKBD_SCR_4 0xfffc
168 #define ATKBD_SCR_8 0xfffb
169 #define ATKBD_SCR_CLICK 0xfffa
170 #define ATKBD_SCR_LEFT 0xfff9
171 #define ATKBD_SCR_RIGHT 0xfff8
173 #define ATKBD_SPECIAL ATKBD_SCR_RIGHT
175 #define ATKBD_LED_EVENT_BIT 0
176 #define ATKBD_REP_EVENT_BIT 1
178 #define ATKBD_XL_ERR 0x01
179 #define ATKBD_XL_BAT 0x02
180 #define ATKBD_XL_ACK 0x04
181 #define ATKBD_XL_NAK 0x08
182 #define ATKBD_XL_HANGEUL 0x10
183 #define ATKBD_XL_HANJA 0x20
185 static const struct {
186 unsigned short keycode;
188 } atkbd_scroll_keys[] = {
189 { ATKBD_SCR_1, 0xc5 },
190 { ATKBD_SCR_2, 0x9d },
191 { ATKBD_SCR_4, 0xa4 },
192 { ATKBD_SCR_8, 0x9b },
193 { ATKBD_SCR_CLICK, 0xe0 },
194 { ATKBD_SCR_LEFT, 0xcb },
195 { ATKBD_SCR_RIGHT, 0xd2 },
199 * The atkbd control structure
204 struct ps2dev ps2dev;
205 struct input_dev *dev;
207 /* Written only during init */
212 unsigned short keycode[ATKBD_KEYMAP_SIZE];
213 DECLARE_BITMAP(force_release_mask, ATKBD_KEYMAP_SIZE);
223 /* Accessed only from interrupt */
227 unsigned long xl_bit;
230 unsigned long err_count;
232 struct delayed_work event_work;
233 unsigned long event_jiffies;
234 unsigned long event_mask;
236 /* Serializes reconnect(), attr->set() and event work */
239 struct vivaldi_data vdata;
243 * System-specific keymap fixup routine
245 static void (*atkbd_platform_fixup)(struct atkbd *, const void *data);
246 static void *atkbd_platform_fixup_data;
247 static unsigned int (*atkbd_platform_scancode_fixup)(struct atkbd *, unsigned int);
250 * Certain keyboards to not like ATKBD_CMD_RESET_DIS and stop responding
251 * to many commands until full reset (ATKBD_CMD_RESET_BAT) is performed.
253 static bool atkbd_skip_deactivate;
255 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
256 ssize_t (*handler)(struct atkbd *, char *));
257 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
258 ssize_t (*handler)(struct atkbd *, const char *, size_t));
259 #define ATKBD_DEFINE_ATTR(_name) \
260 static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
261 static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \
262 static ssize_t atkbd_do_show_##_name(struct device *d, \
263 struct device_attribute *attr, char *b) \
265 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
267 static ssize_t atkbd_do_set_##_name(struct device *d, \
268 struct device_attribute *attr, const char *b, size_t s) \
270 return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \
272 static struct device_attribute atkbd_attr_##_name = \
273 __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name);
275 ATKBD_DEFINE_ATTR(extra);
276 ATKBD_DEFINE_ATTR(force_release);
277 ATKBD_DEFINE_ATTR(scroll);
278 ATKBD_DEFINE_ATTR(set);
279 ATKBD_DEFINE_ATTR(softrepeat);
280 ATKBD_DEFINE_ATTR(softraw);
282 #define ATKBD_DEFINE_RO_ATTR(_name) \
283 static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
284 static ssize_t atkbd_do_show_##_name(struct device *d, \
285 struct device_attribute *attr, char *b) \
287 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
289 static struct device_attribute atkbd_attr_##_name = \
290 __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL);
292 ATKBD_DEFINE_RO_ATTR(err_count);
293 ATKBD_DEFINE_RO_ATTR(function_row_physmap);
295 static struct attribute *atkbd_attributes[] = {
296 &atkbd_attr_extra.attr,
297 &atkbd_attr_force_release.attr,
298 &atkbd_attr_scroll.attr,
299 &atkbd_attr_set.attr,
300 &atkbd_attr_softrepeat.attr,
301 &atkbd_attr_softraw.attr,
302 &atkbd_attr_err_count.attr,
303 &atkbd_attr_function_row_physmap.attr,
307 static ssize_t atkbd_show_function_row_physmap(struct atkbd *atkbd, char *buf)
309 return vivaldi_function_row_physmap_show(&atkbd->vdata, buf);
312 static umode_t atkbd_attr_is_visible(struct kobject *kobj,
313 struct attribute *attr, int i)
315 struct device *dev = kobj_to_dev(kobj);
316 struct serio *serio = to_serio_port(dev);
317 struct atkbd *atkbd = serio_get_drvdata(serio);
319 if (attr == &atkbd_attr_function_row_physmap.attr &&
320 !atkbd->vdata.num_function_row_keys)
326 static const struct attribute_group atkbd_attribute_group = {
327 .attrs = atkbd_attributes,
328 .is_visible = atkbd_attr_is_visible,
331 __ATTRIBUTE_GROUPS(atkbd_attribute);
333 static const unsigned int xl_table[] = {
334 ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK,
335 ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL,
339 * Checks if we should mangle the scancode to extract 'release' bit
340 * in translated mode.
342 static bool atkbd_need_xlate(unsigned long xl_bit, unsigned char code)
346 if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1)
349 for (i = 0; i < ARRAY_SIZE(xl_table); i++)
350 if (code == xl_table[i])
351 return test_bit(i, &xl_bit);
357 * Calculates new value of xl_bit so the driver can distinguish
358 * between make/break pair of scancodes for select keys and PS/2
359 * protocol responses.
361 static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code)
365 for (i = 0; i < ARRAY_SIZE(xl_table); i++) {
366 if (!((code ^ xl_table[i]) & 0x7f)) {
368 __clear_bit(i, &atkbd->xl_bit);
370 __set_bit(i, &atkbd->xl_bit);
377 * Encode the scancode, 0xe0 prefix, and high bit into a single integer,
378 * keeping kernel 2.4 compatibility for set 2
380 static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code)
382 if (atkbd->set == 3) {
383 if (atkbd->emul == 1)
386 code = (code & 0x7f) | ((code & 0x80) << 1);
387 if (atkbd->emul == 1)
395 * atkbd_interrupt(). Here takes place processing of data received from
396 * the keyboard into events.
399 static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
402 struct atkbd *atkbd = serio_get_drvdata(serio);
403 struct input_dev *dev = atkbd->dev;
404 unsigned int code = data;
405 int scroll = 0, hscroll = 0, click = -1;
407 unsigned short keycode;
409 dev_dbg(&serio->dev, "Received %02x flags %02x\n", data, flags);
411 #if !defined(__i386__) && !defined (__x86_64__)
412 if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
413 dev_warn(&serio->dev, "Frame/parity error: %02x\n", flags);
414 serio_write(serio, ATKBD_CMD_RESEND);
415 atkbd->resend = true;
419 if (!flags && data == ATKBD_RET_ACK)
420 atkbd->resend = false;
423 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK))
424 if (ps2_handle_ack(&atkbd->ps2dev, data))
427 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD))
428 if (ps2_handle_response(&atkbd->ps2dev, data))
431 pm_wakeup_event(&serio->dev, 0);
436 input_event(dev, EV_MSC, MSC_RAW, code);
438 if (atkbd_platform_scancode_fixup)
439 code = atkbd_platform_scancode_fixup(atkbd, code);
441 if (atkbd->translated) {
443 if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) {
444 atkbd->release = code >> 7;
449 atkbd_calculate_xl_bit(atkbd, data);
454 atkbd->enabled = false;
455 serio_reconnect(atkbd->ps2dev.serio);
457 case ATKBD_RET_EMUL0:
460 case ATKBD_RET_EMUL1:
463 case ATKBD_RET_RELEASE:
464 atkbd->release = true;
468 if (printk_ratelimit())
469 dev_warn(&serio->dev,
470 "Spurious %s on %s. "
471 "Some program might be trying to access hardware directly.\n",
472 data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
476 dev_dbg(&serio->dev, "Keyboard on %s reports too many keys pressed.\n",
481 code = atkbd_compat_scancode(atkbd, code);
483 if (atkbd->emul && --atkbd->emul)
486 keycode = atkbd->keycode[code];
488 if (!(atkbd->release && test_bit(code, atkbd->force_release_mask)))
489 if (keycode != ATKBD_KEY_NULL)
490 input_event(dev, EV_MSC, MSC_SCAN, code);
495 case ATKBD_KEY_UNKNOWN:
496 dev_warn(&serio->dev,
497 "Unknown key %s (%s set %d, code %#x on %s).\n",
498 atkbd->release ? "released" : "pressed",
499 atkbd->translated ? "translated" : "raw",
500 atkbd->set, code, serio->phys);
501 dev_warn(&serio->dev,
502 "Use 'setkeycodes %s%02x <keycode>' to make it known.\n",
503 code & 0x80 ? "e0" : "", code & 0x7f);
518 case ATKBD_SCR_CLICK:
519 click = !atkbd->release;
524 case ATKBD_SCR_RIGHT:
528 if (atkbd->release) {
531 } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) {
532 /* Workaround Toshiba laptop multiple keypress */
533 value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2;
537 atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2;
540 input_event(dev, EV_KEY, keycode, value);
543 if (value && test_bit(code, atkbd->force_release_mask)) {
544 input_event(dev, EV_MSC, MSC_SCAN, code);
545 input_report_key(dev, keycode, 0);
552 input_report_key(dev, BTN_MIDDLE, click);
553 input_report_rel(dev, REL_WHEEL,
554 atkbd->release ? -scroll : scroll);
555 input_report_rel(dev, REL_HWHEEL, hscroll);
559 atkbd->release = false;
564 static int atkbd_set_repeat_rate(struct atkbd *atkbd)
566 const short period[32] =
567 { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125,
568 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 };
569 const short delay[4] =
570 { 250, 500, 750, 1000 };
572 struct input_dev *dev = atkbd->dev;
576 while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD])
578 dev->rep[REP_PERIOD] = period[i];
580 while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY])
582 dev->rep[REP_DELAY] = delay[j];
584 param = i | (j << 5);
585 return ps2_command(&atkbd->ps2dev, ¶m, ATKBD_CMD_SETREP);
588 static int atkbd_set_leds(struct atkbd *atkbd)
590 struct input_dev *dev = atkbd->dev;
591 unsigned char param[2];
593 param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
594 | (test_bit(LED_NUML, dev->led) ? 2 : 0)
595 | (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
596 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
601 param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
602 | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
603 | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
604 | (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
605 | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
606 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS))
614 * atkbd_event_work() is used to complete processing of events that
615 * can not be processed by input_event() which is often called from
619 static void atkbd_event_work(struct work_struct *work)
621 struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work);
623 mutex_lock(&atkbd->mutex);
625 if (!atkbd->enabled) {
627 * Serio ports are resumed asynchronously so while driver core
628 * thinks that device is already fully operational in reality
629 * it may not be ready yet. In this case we need to keep
630 * rescheduling till reconnect completes.
632 schedule_delayed_work(&atkbd->event_work,
633 msecs_to_jiffies(100));
635 if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask))
636 atkbd_set_leds(atkbd);
638 if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask))
639 atkbd_set_repeat_rate(atkbd);
642 mutex_unlock(&atkbd->mutex);
646 * Schedule switch for execution. We need to throttle requests,
647 * otherwise keyboard may become unresponsive.
649 static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit)
651 unsigned long delay = msecs_to_jiffies(50);
653 if (time_after(jiffies, atkbd->event_jiffies + delay))
656 atkbd->event_jiffies = jiffies;
657 set_bit(event_bit, &atkbd->event_mask);
659 schedule_delayed_work(&atkbd->event_work, delay);
663 * Event callback from the input module. Events that change the state of
664 * the hardware are processed here. If action can not be performed in
665 * interrupt context it is offloaded to atkbd_event_work.
668 static int atkbd_event(struct input_dev *dev,
669 unsigned int type, unsigned int code, int value)
671 struct atkbd *atkbd = input_get_drvdata(dev);
679 atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT);
683 if (!atkbd->softrepeat)
684 atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT);
693 * atkbd_enable() signals that interrupt handler is allowed to
694 * generate input events.
697 static inline void atkbd_enable(struct atkbd *atkbd)
699 serio_pause_rx(atkbd->ps2dev.serio);
700 atkbd->enabled = true;
701 serio_continue_rx(atkbd->ps2dev.serio);
705 * atkbd_disable() tells input handler that all incoming data except
706 * for ACKs and command response should be dropped.
709 static inline void atkbd_disable(struct atkbd *atkbd)
711 serio_pause_rx(atkbd->ps2dev.serio);
712 atkbd->enabled = false;
713 serio_continue_rx(atkbd->ps2dev.serio);
716 static int atkbd_activate(struct atkbd *atkbd)
718 struct ps2dev *ps2dev = &atkbd->ps2dev;
721 * Enable the keyboard to receive keystrokes.
724 if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) {
725 dev_err(&ps2dev->serio->dev,
726 "Failed to enable keyboard on %s\n",
727 ps2dev->serio->phys);
735 * atkbd_deactivate() resets and disables the keyboard from sending
739 static void atkbd_deactivate(struct atkbd *atkbd)
741 struct ps2dev *ps2dev = &atkbd->ps2dev;
743 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_DIS))
744 dev_err(&ps2dev->serio->dev,
745 "Failed to deactivate keyboard on %s\n",
746 ps2dev->serio->phys);
750 * atkbd_probe() probes for an AT keyboard on a serio port.
753 static int atkbd_probe(struct atkbd *atkbd)
755 struct ps2dev *ps2dev = &atkbd->ps2dev;
756 unsigned char param[2];
759 * Some systems, where the bit-twiddling when testing the io-lines of the
760 * controller may confuse the keyboard need a full reset of the keyboard. On
761 * these systems the BIOS also usually doesn't do it for us.
765 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT))
766 dev_warn(&ps2dev->serio->dev,
767 "keyboard reset failed on %s\n",
768 ps2dev->serio->phys);
771 * Then we check the keyboard ID. We should get 0xab83 under normal conditions.
772 * Some keyboards report different values, but the first byte is always 0xab or
773 * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
774 * should make sure we don't try to set the LEDs on it.
777 param[0] = param[1] = 0xa5; /* initialize with invalid values */
778 if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) {
781 * If the get ID command failed, we check if we can at least set the LEDs on
782 * the keyboard. This should work on every keyboard out there. It also turns
783 * the LEDs off, which we want anyway.
786 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
792 if (!ps2_is_keyboard_id(param[0]))
795 atkbd->id = (param[0] << 8) | param[1];
797 if (atkbd->id == 0xaca1 && atkbd->translated) {
798 dev_err(&ps2dev->serio->dev,
799 "NCD terminal keyboards are only supported on non-translating controllers. "
800 "Use i8042.direct=1 to disable translation.\n");
805 * Make sure nothing is coming from the keyboard and disturbs our
808 if (!atkbd_skip_deactivate)
809 atkbd_deactivate(atkbd);
815 * atkbd_select_set checks if a keyboard has a working Set 3 support, and
816 * sets it into that. Unfortunately there are keyboards that can be switched
817 * to Set 3, but don't work well in that (BTC Multimedia ...)
820 static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra)
822 struct ps2dev *ps2dev = &atkbd->ps2dev;
823 unsigned char param[2];
825 atkbd->extra = false;
827 * For known special keyboards we can go ahead and set the correct set.
828 * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and
829 * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards.
832 if (atkbd->translated)
835 if (atkbd->id == 0xaca1) {
837 ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET);
843 if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) {
849 if (atkbd_terminal) {
850 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MB);
857 if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) {
858 atkbd->id = param[0] << 8 | param[1];
863 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
867 if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET))
872 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
876 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR);
881 static int atkbd_reset_state(struct atkbd *atkbd)
883 struct ps2dev *ps2dev = &atkbd->ps2dev;
884 unsigned char param[1];
887 * Set the LEDs to a predefined state (all off).
891 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
895 * Set autorepeat to fastest possible.
899 if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP))
906 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
910 static void atkbd_cleanup(struct serio *serio)
912 struct atkbd *atkbd = serio_get_drvdata(serio);
914 atkbd_disable(atkbd);
915 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_DEF);
920 * atkbd_disconnect() closes and frees.
923 static void atkbd_disconnect(struct serio *serio)
925 struct atkbd *atkbd = serio_get_drvdata(serio);
927 atkbd_disable(atkbd);
929 input_unregister_device(atkbd->dev);
932 * Make sure we don't have a command in flight.
933 * Note that since atkbd->enabled is false event work will keep
934 * rescheduling itself until it gets canceled and will not try
935 * accessing freed input device or serio port.
937 cancel_delayed_work_sync(&atkbd->event_work);
940 serio_set_drvdata(serio, NULL);
945 * generate release events for the keycodes given in data
947 static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
950 const unsigned int *keys = data;
954 for (i = 0; keys[i] != -1U; i++)
955 __set_bit(keys[i], atkbd->force_release_mask);
959 * Most special keys (Fn+F?) on Dell laptops do not generate release
960 * events so we have to do it ourselves.
962 static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
963 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
967 * Perform fixup for HP system that doesn't generate release
968 * for its video switch
970 static unsigned int atkbd_hp_forced_release_keys[] = {
975 * Samsung NC10,NC20 with Fn+F? key release not working
977 static unsigned int atkbd_samsung_forced_release_keys[] = {
978 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
982 * Amilo Pi 3525 key release for Fn+Volume keys not working
984 static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = {
985 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U
989 * Amilo Xi 3650 key release for light touch bar not working
991 static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
992 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U
996 * Soltech TA12 system with broken key release on volume keys and mute key
998 static unsigned int atkdb_soltech_ta12_forced_release_keys[] = {
999 0xa0, 0xae, 0xb0, -1U
1003 * Many notebooks don't send key release event for volume up/down
1004 * keys, with key list below common among them
1006 static unsigned int atkbd_volume_forced_release_keys[] = {
1011 * OQO 01+ multimedia keys (64--66) generate e0 6x upon release whereas
1012 * they should be generating e4-e6 (0x80 | code).
1014 static unsigned int atkbd_oqo_01plus_scancode_fixup(struct atkbd *atkbd,
1017 if (atkbd->translated && atkbd->emul == 1 &&
1018 (code == 0x64 || code == 0x65 || code == 0x66)) {
1026 static int atkbd_get_keymap_from_fwnode(struct atkbd *atkbd)
1028 struct device *dev = &atkbd->ps2dev.serio->dev;
1031 u16 scancode, keycode;
1033 /* Parse "linux,keymap" property */
1034 n = device_property_count_u32(dev, "linux,keymap");
1035 if (n <= 0 || n > ATKBD_KEYMAP_SIZE)
1038 ptr = kcalloc(n, sizeof(u32), GFP_KERNEL);
1042 if (device_property_read_u32_array(dev, "linux,keymap", ptr, n)) {
1043 dev_err(dev, "problem parsing FW keymap property\n");
1048 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
1049 for (i = 0; i < n; i++) {
1050 scancode = SCANCODE(ptr[i]);
1051 keycode = KEYCODE(ptr[i]);
1052 atkbd->keycode[scancode] = keycode;
1060 * atkbd_set_keycode_table() initializes keyboard's keycode table
1061 * according to the selected scancode set
1064 static void atkbd_set_keycode_table(struct atkbd *atkbd)
1066 struct device *dev = &atkbd->ps2dev.serio->dev;
1067 unsigned int scancode;
1070 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
1071 bitmap_zero(atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1073 if (!atkbd_get_keymap_from_fwnode(atkbd)) {
1074 dev_dbg(dev, "Using FW keymap\n");
1075 } else if (atkbd->translated) {
1076 for (i = 0; i < 128; i++) {
1077 scancode = atkbd_unxlate_table[i];
1078 atkbd->keycode[i] = atkbd_set2_keycode[scancode];
1079 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
1081 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
1082 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
1083 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
1085 } else if (atkbd->set == 3) {
1086 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
1088 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
1091 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
1092 scancode = atkbd_scroll_keys[i].set2;
1093 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
1098 * HANGEUL and HANJA keys do not send release events so we need to
1099 * generate such events ourselves
1101 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
1102 atkbd->keycode[scancode] = KEY_HANGEUL;
1103 __set_bit(scancode, atkbd->force_release_mask);
1105 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
1106 atkbd->keycode[scancode] = KEY_HANJA;
1107 __set_bit(scancode, atkbd->force_release_mask);
1110 * Perform additional fixups
1112 if (atkbd_platform_fixup)
1113 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
1117 * atkbd_set_device_attrs() sets up keyboard's input device structure
1120 static void atkbd_set_device_attrs(struct atkbd *atkbd)
1122 struct input_dev *input_dev = atkbd->dev;
1126 snprintf(atkbd->name, sizeof(atkbd->name),
1127 "AT Set 2 Extra keyboard");
1129 snprintf(atkbd->name, sizeof(atkbd->name),
1130 "AT %s Set %d keyboard",
1131 atkbd->translated ? "Translated" : "Raw", atkbd->set);
1133 snprintf(atkbd->phys, sizeof(atkbd->phys),
1134 "%s/input0", atkbd->ps2dev.serio->phys);
1136 input_dev->name = atkbd->name;
1137 input_dev->phys = atkbd->phys;
1138 input_dev->id.bustype = BUS_I8042;
1139 input_dev->id.vendor = 0x0001;
1140 input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
1141 input_dev->id.version = atkbd->id;
1142 input_dev->event = atkbd_event;
1143 input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
1145 input_set_drvdata(input_dev, atkbd);
1147 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
1151 input_dev->evbit[0] |= BIT_MASK(EV_LED);
1152 input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
1153 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
1157 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
1158 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
1159 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
1161 if (!atkbd->softrepeat) {
1162 input_dev->rep[REP_DELAY] = 250;
1163 input_dev->rep[REP_PERIOD] = 33;
1166 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
1167 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
1169 if (atkbd->scroll) {
1170 input_dev->evbit[0] |= BIT_MASK(EV_REL);
1171 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
1172 BIT_MASK(REL_HWHEEL);
1173 __set_bit(BTN_MIDDLE, input_dev->keybit);
1176 input_dev->keycode = atkbd->keycode;
1177 input_dev->keycodesize = sizeof(unsigned short);
1178 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
1180 for (i = 0; i < ATKBD_KEYMAP_SIZE; i++) {
1181 if (atkbd->keycode[i] != KEY_RESERVED &&
1182 atkbd->keycode[i] != ATKBD_KEY_NULL &&
1183 atkbd->keycode[i] < ATKBD_SPECIAL) {
1184 __set_bit(atkbd->keycode[i], input_dev->keybit);
1189 static void atkbd_parse_fwnode_data(struct serio *serio)
1191 struct atkbd *atkbd = serio_get_drvdata(serio);
1192 struct device *dev = &serio->dev;
1195 /* Parse "function-row-physmap" property */
1196 n = device_property_count_u32(dev, "function-row-physmap");
1197 if (n > 0 && n <= VIVALDI_MAX_FUNCTION_ROW_KEYS &&
1198 !device_property_read_u32_array(dev, "function-row-physmap",
1199 atkbd->vdata.function_row_physmap,
1201 atkbd->vdata.num_function_row_keys = n;
1202 dev_dbg(dev, "FW reported %d function-row key locations\n", n);
1207 * atkbd_connect() is called when the serio module finds an interface
1208 * that isn't handled yet by an appropriate device driver. We check if
1209 * there is an AT keyboard out there and if yes, we register ourselves
1210 * to the input module.
1213 static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
1215 struct atkbd *atkbd;
1216 struct input_dev *dev;
1219 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
1220 dev = input_allocate_device();
1225 ps2_init(&atkbd->ps2dev, serio);
1226 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
1227 mutex_init(&atkbd->mutex);
1229 switch (serio->id.type) {
1232 atkbd->translated = true;
1237 atkbd->write = true;
1241 atkbd->softraw = atkbd_softraw;
1242 atkbd->softrepeat = atkbd_softrepeat;
1243 atkbd->scroll = atkbd_scroll;
1245 if (atkbd->softrepeat)
1246 atkbd->softraw = true;
1248 serio_set_drvdata(serio, atkbd);
1250 err = serio_open(serio, drv);
1256 if (atkbd_probe(atkbd)) {
1261 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
1262 atkbd_reset_state(atkbd);
1269 atkbd_parse_fwnode_data(serio);
1271 atkbd_set_keycode_table(atkbd);
1272 atkbd_set_device_attrs(atkbd);
1274 atkbd_enable(atkbd);
1276 atkbd_activate(atkbd);
1278 err = input_register_device(atkbd->dev);
1284 fail3: serio_close(serio);
1285 fail2: serio_set_drvdata(serio, NULL);
1286 fail1: input_free_device(dev);
1292 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1293 * most likely called on resume.
1296 static int atkbd_reconnect(struct serio *serio)
1298 struct atkbd *atkbd = serio_get_drvdata(serio);
1299 struct serio_driver *drv = serio->drv;
1302 if (!atkbd || !drv) {
1303 dev_dbg(&serio->dev,
1304 "reconnect request, but serio is disconnected, ignoring...\n");
1308 mutex_lock(&atkbd->mutex);
1310 atkbd_disable(atkbd);
1313 if (atkbd_probe(atkbd))
1316 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
1320 * Restore LED state and repeat rate. While input core
1321 * will do this for us at resume time reconnect may happen
1322 * because user requested it via sysfs or simply because
1323 * keyboard was unplugged and plugged in again so we need
1324 * to do it ourselves here.
1326 atkbd_set_leds(atkbd);
1327 if (!atkbd->softrepeat)
1328 atkbd_set_repeat_rate(atkbd);
1333 * Reset our state machine in case reconnect happened in the middle
1334 * of multi-byte scancode.
1339 atkbd_enable(atkbd);
1341 atkbd_activate(atkbd);
1346 mutex_unlock(&atkbd->mutex);
1350 static const struct serio_device_id atkbd_serio_ids[] = {
1358 .type = SERIO_8042_XL,
1364 .type = SERIO_RS232,
1365 .proto = SERIO_PS2SER,
1372 MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1374 static struct serio_driver atkbd_drv = {
1377 .dev_groups = atkbd_attribute_groups,
1379 .description = DRIVER_DESC,
1380 .id_table = atkbd_serio_ids,
1381 .interrupt = atkbd_interrupt,
1382 .connect = atkbd_connect,
1383 .reconnect = atkbd_reconnect,
1384 .disconnect = atkbd_disconnect,
1385 .cleanup = atkbd_cleanup,
1388 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1389 ssize_t (*handler)(struct atkbd *, char *))
1391 struct serio *serio = to_serio_port(dev);
1392 struct atkbd *atkbd = serio_get_drvdata(serio);
1394 return handler(atkbd, buf);
1397 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1398 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1400 struct serio *serio = to_serio_port(dev);
1401 struct atkbd *atkbd = serio_get_drvdata(serio);
1404 retval = mutex_lock_interruptible(&atkbd->mutex);
1408 atkbd_disable(atkbd);
1409 retval = handler(atkbd, buf, count);
1410 atkbd_enable(atkbd);
1412 mutex_unlock(&atkbd->mutex);
1417 static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1419 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1422 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1424 struct input_dev *old_dev, *new_dev;
1428 unsigned char old_set;
1433 err = kstrtouint(buf, 10, &value);
1440 if (atkbd->extra != value) {
1442 * Since device's properties will change we need to
1443 * unregister old device. But allocate and register
1444 * new one first to make sure we have it.
1446 old_dev = atkbd->dev;
1447 old_extra = atkbd->extra;
1448 old_set = atkbd->set;
1450 new_dev = input_allocate_device();
1454 atkbd->dev = new_dev;
1455 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
1456 atkbd_reset_state(atkbd);
1457 atkbd_activate(atkbd);
1458 atkbd_set_keycode_table(atkbd);
1459 atkbd_set_device_attrs(atkbd);
1461 err = input_register_device(atkbd->dev);
1463 input_free_device(new_dev);
1465 atkbd->dev = old_dev;
1466 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1467 atkbd_set_keycode_table(atkbd);
1468 atkbd_set_device_attrs(atkbd);
1472 input_unregister_device(old_dev);
1478 static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf)
1480 size_t len = scnprintf(buf, PAGE_SIZE - 1, "%*pbl",
1481 ATKBD_KEYMAP_SIZE, atkbd->force_release_mask);
1489 static ssize_t atkbd_set_force_release(struct atkbd *atkbd,
1490 const char *buf, size_t count)
1492 /* 64 bytes on stack should be acceptable */
1493 DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE);
1496 err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE);
1500 memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask));
1505 static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1507 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1510 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1512 struct input_dev *old_dev, *new_dev;
1517 err = kstrtouint(buf, 10, &value);
1524 if (atkbd->scroll != value) {
1525 old_dev = atkbd->dev;
1526 old_scroll = atkbd->scroll;
1528 new_dev = input_allocate_device();
1532 atkbd->dev = new_dev;
1533 atkbd->scroll = value;
1534 atkbd_set_keycode_table(atkbd);
1535 atkbd_set_device_attrs(atkbd);
1537 err = input_register_device(atkbd->dev);
1539 input_free_device(new_dev);
1541 atkbd->scroll = old_scroll;
1542 atkbd->dev = old_dev;
1543 atkbd_set_keycode_table(atkbd);
1544 atkbd_set_device_attrs(atkbd);
1548 input_unregister_device(old_dev);
1553 static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1555 return sprintf(buf, "%d\n", atkbd->set);
1558 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1560 struct input_dev *old_dev, *new_dev;
1563 unsigned char old_set;
1569 err = kstrtouint(buf, 10, &value);
1573 if (value != 2 && value != 3)
1576 if (atkbd->set != value) {
1577 old_dev = atkbd->dev;
1578 old_extra = atkbd->extra;
1579 old_set = atkbd->set;
1581 new_dev = input_allocate_device();
1585 atkbd->dev = new_dev;
1586 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
1587 atkbd_reset_state(atkbd);
1588 atkbd_activate(atkbd);
1589 atkbd_set_keycode_table(atkbd);
1590 atkbd_set_device_attrs(atkbd);
1592 err = input_register_device(atkbd->dev);
1594 input_free_device(new_dev);
1596 atkbd->dev = old_dev;
1597 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1598 atkbd_set_keycode_table(atkbd);
1599 atkbd_set_device_attrs(atkbd);
1603 input_unregister_device(old_dev);
1608 static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1610 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1613 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1615 struct input_dev *old_dev, *new_dev;
1618 bool old_softrepeat, old_softraw;
1623 err = kstrtouint(buf, 10, &value);
1630 if (atkbd->softrepeat != value) {
1631 old_dev = atkbd->dev;
1632 old_softrepeat = atkbd->softrepeat;
1633 old_softraw = atkbd->softraw;
1635 new_dev = input_allocate_device();
1639 atkbd->dev = new_dev;
1640 atkbd->softrepeat = value;
1641 if (atkbd->softrepeat)
1642 atkbd->softraw = true;
1643 atkbd_set_device_attrs(atkbd);
1645 err = input_register_device(atkbd->dev);
1647 input_free_device(new_dev);
1649 atkbd->dev = old_dev;
1650 atkbd->softrepeat = old_softrepeat;
1651 atkbd->softraw = old_softraw;
1652 atkbd_set_device_attrs(atkbd);
1656 input_unregister_device(old_dev);
1662 static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1664 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1667 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1669 struct input_dev *old_dev, *new_dev;
1674 err = kstrtouint(buf, 10, &value);
1681 if (atkbd->softraw != value) {
1682 old_dev = atkbd->dev;
1683 old_softraw = atkbd->softraw;
1685 new_dev = input_allocate_device();
1689 atkbd->dev = new_dev;
1690 atkbd->softraw = value;
1691 atkbd_set_device_attrs(atkbd);
1693 err = input_register_device(atkbd->dev);
1695 input_free_device(new_dev);
1697 atkbd->dev = old_dev;
1698 atkbd->softraw = old_softraw;
1699 atkbd_set_device_attrs(atkbd);
1703 input_unregister_device(old_dev);
1708 static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1710 return sprintf(buf, "%lu\n", atkbd->err_count);
1713 static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
1715 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1716 atkbd_platform_fixup_data = id->driver_data;
1721 static int __init atkbd_setup_scancode_fixup(const struct dmi_system_id *id)
1723 atkbd_platform_scancode_fixup = id->driver_data;
1728 static int __init atkbd_deactivate_fixup(const struct dmi_system_id *id)
1730 atkbd_skip_deactivate = true;
1735 * NOTE: do not add any more "force release" quirks to this table. The
1736 * task of adjusting list of keys that should be "released" automatically
1737 * by the driver is now delegated to userspace tools, such as udev, so
1738 * submit such quirks there.
1740 static const struct dmi_system_id atkbd_dmi_quirk_table[] __initconst = {
1743 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1744 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1746 .callback = atkbd_setup_forced_release,
1747 .driver_data = atkbd_dell_laptop_forced_release_keys,
1751 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1752 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1754 .callback = atkbd_setup_forced_release,
1755 .driver_data = atkbd_dell_laptop_forced_release_keys,
1759 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1760 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1762 .callback = atkbd_setup_forced_release,
1763 .driver_data = atkbd_hp_forced_release_keys,
1767 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1768 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1770 .callback = atkbd_setup_forced_release,
1771 .driver_data = atkbd_volume_forced_release_keys,
1775 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1776 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"),
1778 .callback = atkbd_setup_forced_release,
1779 .driver_data = atkbd_volume_forced_release_keys,
1783 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1784 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"),
1786 .callback = atkbd_setup_forced_release,
1787 .driver_data = atkbd_volume_forced_release_keys,
1791 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1792 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"),
1794 .callback = atkbd_setup_forced_release,
1795 .driver_data = atkbd_volume_forced_release_keys,
1798 /* Inventec Symphony */
1800 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1801 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1803 .callback = atkbd_setup_forced_release,
1804 .driver_data = atkbd_volume_forced_release_keys,
1809 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1810 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1812 .callback = atkbd_setup_forced_release,
1813 .driver_data = atkbd_samsung_forced_release_keys,
1818 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1819 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
1821 .callback = atkbd_setup_forced_release,
1822 .driver_data = atkbd_samsung_forced_release_keys,
1825 /* Samsung SQ45S70S */
1827 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1828 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
1830 .callback = atkbd_setup_forced_release,
1831 .driver_data = atkbd_samsung_forced_release_keys,
1834 /* Fujitsu Amilo PA 1510 */
1836 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1837 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1839 .callback = atkbd_setup_forced_release,
1840 .driver_data = atkbd_volume_forced_release_keys,
1843 /* Fujitsu Amilo Pi 3525 */
1845 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1846 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"),
1848 .callback = atkbd_setup_forced_release,
1849 .driver_data = atkbd_amilo_pi3525_forced_release_keys,
1852 /* Fujitsu Amilo Xi 3650 */
1854 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1855 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"),
1857 .callback = atkbd_setup_forced_release,
1858 .driver_data = atkbd_amilo_xi3650_forced_release_keys,
1862 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"),
1863 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"),
1865 .callback = atkbd_setup_forced_release,
1866 .driver_data = atkdb_soltech_ta12_forced_release_keys,
1871 DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
1872 DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
1874 .callback = atkbd_setup_scancode_fixup,
1875 .driver_data = atkbd_oqo_01plus_scancode_fixup,
1879 DMI_MATCH(DMI_SYS_VENDOR, "LG Electronics"),
1881 .callback = atkbd_deactivate_fixup,
1886 static int __init atkbd_init(void)
1888 dmi_check_system(atkbd_dmi_quirk_table);
1890 return serio_register_driver(&atkbd_drv);
1893 static void __exit atkbd_exit(void)
1895 serio_unregister_driver(&atkbd_drv);
1898 module_init(atkbd_init);
1899 module_exit(atkbd_exit);