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 struct atkbd *atkbd_from_serio(struct serio *serio)
314 struct ps2dev *ps2dev = serio_get_drvdata(serio);
316 return container_of(ps2dev, struct atkbd, ps2dev);
319 static umode_t atkbd_attr_is_visible(struct kobject *kobj,
320 struct attribute *attr, int i)
322 struct device *dev = kobj_to_dev(kobj);
323 struct serio *serio = to_serio_port(dev);
324 struct atkbd *atkbd = atkbd_from_serio(serio);
326 if (attr == &atkbd_attr_function_row_physmap.attr &&
327 !atkbd->vdata.num_function_row_keys)
333 static const struct attribute_group atkbd_attribute_group = {
334 .attrs = atkbd_attributes,
335 .is_visible = atkbd_attr_is_visible,
338 __ATTRIBUTE_GROUPS(atkbd_attribute);
340 static const unsigned int xl_table[] = {
341 ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK,
342 ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL,
346 * Checks if we should mangle the scancode to extract 'release' bit
347 * in translated mode.
349 static bool atkbd_need_xlate(unsigned long xl_bit, unsigned char code)
353 if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1)
356 for (i = 0; i < ARRAY_SIZE(xl_table); i++)
357 if (code == xl_table[i])
358 return test_bit(i, &xl_bit);
364 * Calculates new value of xl_bit so the driver can distinguish
365 * between make/break pair of scancodes for select keys and PS/2
366 * protocol responses.
368 static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code)
372 for (i = 0; i < ARRAY_SIZE(xl_table); i++) {
373 if (!((code ^ xl_table[i]) & 0x7f)) {
375 __clear_bit(i, &atkbd->xl_bit);
377 __set_bit(i, &atkbd->xl_bit);
384 * Encode the scancode, 0xe0 prefix, and high bit into a single integer,
385 * keeping kernel 2.4 compatibility for set 2
387 static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code)
389 if (atkbd->set == 3) {
390 if (atkbd->emul == 1)
393 code = (code & 0x7f) | ((code & 0x80) << 1);
394 if (atkbd->emul == 1)
402 * Tries to handle frame or parity error by requesting the keyboard controller
403 * to resend the last byte. This historically not done on x86 as controllers
404 * there typically do not implement this command.
406 static bool __maybe_unused atkbd_handle_frame_error(struct ps2dev *ps2dev,
407 u8 data, unsigned int flags)
409 struct atkbd *atkbd = container_of(ps2dev, struct atkbd, ps2dev);
410 struct serio *serio = ps2dev->serio;
412 if ((flags & (SERIO_FRAME | SERIO_PARITY)) &&
413 (~flags & SERIO_TIMEOUT) &&
414 !atkbd->resend && atkbd->write) {
415 dev_warn(&serio->dev, "Frame/parity error: %02x\n", flags);
416 serio_write(serio, ATKBD_CMD_RESEND);
417 atkbd->resend = true;
421 if (!flags && data == ATKBD_RET_ACK)
422 atkbd->resend = false;
427 static enum ps2_disposition atkbd_pre_receive_byte(struct ps2dev *ps2dev,
428 u8 data, unsigned int flags)
430 struct serio *serio = ps2dev->serio;
432 dev_dbg(&serio->dev, "Received %02x flags %02x\n", data, flags);
434 #if !defined(__i386__) && !defined (__x86_64__)
435 if (atkbd_handle_frame_error(ps2dev, data, flags))
442 static void atkbd_receive_byte(struct ps2dev *ps2dev, u8 data)
444 struct serio *serio = ps2dev->serio;
445 struct atkbd *atkbd = container_of(ps2dev, struct atkbd, ps2dev);
446 struct input_dev *dev = atkbd->dev;
447 unsigned int code = data;
448 int scroll = 0, hscroll = 0, click = -1;
450 unsigned short keycode;
452 pm_wakeup_event(&serio->dev, 0);
457 input_event(dev, EV_MSC, MSC_RAW, code);
459 if (atkbd_platform_scancode_fixup)
460 code = atkbd_platform_scancode_fixup(atkbd, code);
462 if (atkbd->translated) {
464 if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) {
465 atkbd->release = code >> 7;
470 atkbd_calculate_xl_bit(atkbd, data);
475 atkbd->enabled = false;
476 serio_reconnect(atkbd->ps2dev.serio);
478 case ATKBD_RET_EMUL0:
481 case ATKBD_RET_EMUL1:
484 case ATKBD_RET_RELEASE:
485 atkbd->release = true;
489 if (printk_ratelimit())
490 dev_warn(&serio->dev,
491 "Spurious %s on %s. "
492 "Some program might be trying to access hardware directly.\n",
493 data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
497 dev_dbg(&serio->dev, "Keyboard on %s reports too many keys pressed.\n",
502 code = atkbd_compat_scancode(atkbd, code);
504 if (atkbd->emul && --atkbd->emul)
507 keycode = atkbd->keycode[code];
509 if (!(atkbd->release && test_bit(code, atkbd->force_release_mask)))
510 if (keycode != ATKBD_KEY_NULL)
511 input_event(dev, EV_MSC, MSC_SCAN, code);
516 case ATKBD_KEY_UNKNOWN:
517 dev_warn(&serio->dev,
518 "Unknown key %s (%s set %d, code %#x on %s).\n",
519 atkbd->release ? "released" : "pressed",
520 atkbd->translated ? "translated" : "raw",
521 atkbd->set, code, serio->phys);
522 dev_warn(&serio->dev,
523 "Use 'setkeycodes %s%02x <keycode>' to make it known.\n",
524 code & 0x80 ? "e0" : "", code & 0x7f);
539 case ATKBD_SCR_CLICK:
540 click = !atkbd->release;
545 case ATKBD_SCR_RIGHT:
549 if (atkbd->release) {
552 } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) {
553 /* Workaround Toshiba laptop multiple keypress */
554 value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2;
558 atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2;
561 input_event(dev, EV_KEY, keycode, value);
564 if (value && test_bit(code, atkbd->force_release_mask)) {
565 input_event(dev, EV_MSC, MSC_SCAN, code);
566 input_report_key(dev, keycode, 0);
573 input_report_key(dev, BTN_MIDDLE, click);
574 input_report_rel(dev, REL_WHEEL,
575 atkbd->release ? -scroll : scroll);
576 input_report_rel(dev, REL_HWHEEL, hscroll);
580 atkbd->release = false;
583 static int atkbd_set_repeat_rate(struct atkbd *atkbd)
585 const short period[32] =
586 { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125,
587 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 };
588 const short delay[4] =
589 { 250, 500, 750, 1000 };
591 struct input_dev *dev = atkbd->dev;
595 while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD])
597 dev->rep[REP_PERIOD] = period[i];
599 while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY])
601 dev->rep[REP_DELAY] = delay[j];
603 param = i | (j << 5);
604 return ps2_command(&atkbd->ps2dev, ¶m, ATKBD_CMD_SETREP);
607 static int atkbd_set_leds(struct atkbd *atkbd)
609 struct input_dev *dev = atkbd->dev;
610 unsigned char param[2];
612 param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
613 | (test_bit(LED_NUML, dev->led) ? 2 : 0)
614 | (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
615 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
620 param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
621 | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
622 | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
623 | (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
624 | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
625 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS))
633 * atkbd_event_work() is used to complete processing of events that
634 * can not be processed by input_event() which is often called from
638 static void atkbd_event_work(struct work_struct *work)
640 struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work);
642 mutex_lock(&atkbd->mutex);
644 if (!atkbd->enabled) {
646 * Serio ports are resumed asynchronously so while driver core
647 * thinks that device is already fully operational in reality
648 * it may not be ready yet. In this case we need to keep
649 * rescheduling till reconnect completes.
651 schedule_delayed_work(&atkbd->event_work,
652 msecs_to_jiffies(100));
654 if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask))
655 atkbd_set_leds(atkbd);
657 if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask))
658 atkbd_set_repeat_rate(atkbd);
661 mutex_unlock(&atkbd->mutex);
665 * Schedule switch for execution. We need to throttle requests,
666 * otherwise keyboard may become unresponsive.
668 static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit)
670 unsigned long delay = msecs_to_jiffies(50);
672 if (time_after(jiffies, atkbd->event_jiffies + delay))
675 atkbd->event_jiffies = jiffies;
676 set_bit(event_bit, &atkbd->event_mask);
678 schedule_delayed_work(&atkbd->event_work, delay);
682 * Event callback from the input module. Events that change the state of
683 * the hardware are processed here. If action can not be performed in
684 * interrupt context it is offloaded to atkbd_event_work.
687 static int atkbd_event(struct input_dev *dev,
688 unsigned int type, unsigned int code, int value)
690 struct atkbd *atkbd = input_get_drvdata(dev);
698 atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT);
702 if (!atkbd->softrepeat)
703 atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT);
712 * atkbd_enable() signals that interrupt handler is allowed to
713 * generate input events.
716 static inline void atkbd_enable(struct atkbd *atkbd)
718 serio_pause_rx(atkbd->ps2dev.serio);
719 atkbd->enabled = true;
720 serio_continue_rx(atkbd->ps2dev.serio);
724 * atkbd_disable() tells input handler that all incoming data except
725 * for ACKs and command response should be dropped.
728 static inline void atkbd_disable(struct atkbd *atkbd)
730 serio_pause_rx(atkbd->ps2dev.serio);
731 atkbd->enabled = false;
732 serio_continue_rx(atkbd->ps2dev.serio);
735 static int atkbd_activate(struct atkbd *atkbd)
737 struct ps2dev *ps2dev = &atkbd->ps2dev;
740 * Enable the keyboard to receive keystrokes.
743 if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) {
744 dev_err(&ps2dev->serio->dev,
745 "Failed to enable keyboard on %s\n",
746 ps2dev->serio->phys);
754 * atkbd_deactivate() resets and disables the keyboard from sending
758 static void atkbd_deactivate(struct atkbd *atkbd)
760 struct ps2dev *ps2dev = &atkbd->ps2dev;
762 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_DIS))
763 dev_err(&ps2dev->serio->dev,
764 "Failed to deactivate keyboard on %s\n",
765 ps2dev->serio->phys);
769 static bool atkbd_is_portable_device(void)
771 static const char * const chassis_types[] = {
775 "14", /* Sub-Notebook */
776 "31", /* Convertible */
777 "32", /* Detachable */
781 for (i = 0; i < ARRAY_SIZE(chassis_types); i++)
782 if (dmi_match(DMI_CHASSIS_TYPE, chassis_types[i]))
789 * On many modern laptops ATKBD_CMD_GETID may cause problems, on these laptops
790 * the controller is always in translated mode. In this mode mice/touchpads will
791 * not work. So in this case simply assume a keyboard is connected to avoid
792 * confusing some laptop keyboards.
794 * Skipping ATKBD_CMD_GETID ends up using a fake keyboard id. Using the standard
795 * 0xab83 id is ok in translated mode, only atkbd_select_set() checks atkbd->id
796 * and in translated mode that is a no-op.
798 static bool atkbd_skip_getid(struct atkbd *atkbd)
800 return atkbd->translated && atkbd_is_portable_device();
803 static inline bool atkbd_skip_getid(struct atkbd *atkbd) { return false; }
807 * atkbd_probe() probes for an AT keyboard on a serio port.
810 static int atkbd_probe(struct atkbd *atkbd)
812 struct ps2dev *ps2dev = &atkbd->ps2dev;
813 unsigned char param[2];
816 * Some systems, where the bit-twiddling when testing the io-lines of the
817 * controller may confuse the keyboard need a full reset of the keyboard. On
818 * these systems the BIOS also usually doesn't do it for us.
822 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT))
823 dev_warn(&ps2dev->serio->dev,
824 "keyboard reset failed on %s\n",
825 ps2dev->serio->phys);
827 if (atkbd_skip_getid(atkbd)) {
833 * Then we check the keyboard ID. We should get 0xab83 under normal conditions.
834 * Some keyboards report different values, but the first byte is always 0xab or
835 * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
836 * should make sure we don't try to set the LEDs on it.
839 param[0] = param[1] = 0xa5; /* initialize with invalid values */
840 if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) {
843 * If the get ID command failed, we check if we can at least set
844 * the LEDs on the keyboard. This should work on every keyboard out there.
845 * It also turns the LEDs off, which we want anyway.
848 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
854 if (!ps2_is_keyboard_id(param[0]))
857 atkbd->id = (param[0] << 8) | param[1];
859 if (atkbd->id == 0xaca1 && atkbd->translated) {
860 dev_err(&ps2dev->serio->dev,
861 "NCD terminal keyboards are only supported on non-translating controllers. "
862 "Use i8042.direct=1 to disable translation.\n");
868 * Make sure nothing is coming from the keyboard and disturbs our
871 if (!atkbd_skip_deactivate)
872 atkbd_deactivate(atkbd);
878 * atkbd_select_set checks if a keyboard has a working Set 3 support, and
879 * sets it into that. Unfortunately there are keyboards that can be switched
880 * to Set 3, but don't work well in that (BTC Multimedia ...)
883 static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra)
885 struct ps2dev *ps2dev = &atkbd->ps2dev;
886 unsigned char param[2];
888 atkbd->extra = false;
890 * For known special keyboards we can go ahead and set the correct set.
891 * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and
892 * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards.
895 if (atkbd->translated)
898 if (atkbd->id == 0xaca1) {
900 ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET);
906 if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) {
912 if (atkbd_terminal) {
913 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MB);
920 if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) {
921 atkbd->id = param[0] << 8 | param[1];
926 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
930 if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET))
935 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
939 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR);
944 static int atkbd_reset_state(struct atkbd *atkbd)
946 struct ps2dev *ps2dev = &atkbd->ps2dev;
947 unsigned char param[1];
950 * Set the LEDs to a predefined state (all off).
954 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
958 * Set autorepeat to fastest possible.
962 if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP))
969 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
973 static void atkbd_cleanup(struct serio *serio)
975 struct atkbd *atkbd = atkbd_from_serio(serio);
977 atkbd_disable(atkbd);
978 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_DEF);
983 * atkbd_disconnect() closes and frees.
986 static void atkbd_disconnect(struct serio *serio)
988 struct atkbd *atkbd = atkbd_from_serio(serio);
990 atkbd_disable(atkbd);
992 input_unregister_device(atkbd->dev);
995 * Make sure we don't have a command in flight.
996 * Note that since atkbd->enabled is false event work will keep
997 * rescheduling itself until it gets canceled and will not try
998 * accessing freed input device or serio port.
1000 cancel_delayed_work_sync(&atkbd->event_work);
1003 serio_set_drvdata(serio, NULL);
1008 * generate release events for the keycodes given in data
1010 static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
1013 const unsigned int *keys = data;
1016 if (atkbd->set == 2)
1017 for (i = 0; keys[i] != -1U; i++)
1018 __set_bit(keys[i], atkbd->force_release_mask);
1022 * Most special keys (Fn+F?) on Dell laptops do not generate release
1023 * events so we have to do it ourselves.
1025 static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
1026 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
1030 * Perform fixup for HP system that doesn't generate release
1031 * for its video switch
1033 static unsigned int atkbd_hp_forced_release_keys[] = {
1038 * Samsung NC10,NC20 with Fn+F? key release not working
1040 static unsigned int atkbd_samsung_forced_release_keys[] = {
1041 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
1045 * Amilo Pi 3525 key release for Fn+Volume keys not working
1047 static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = {
1048 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U
1052 * Amilo Xi 3650 key release for light touch bar not working
1054 static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
1055 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U
1059 * Soltech TA12 system with broken key release on volume keys and mute key
1061 static unsigned int atkdb_soltech_ta12_forced_release_keys[] = {
1062 0xa0, 0xae, 0xb0, -1U
1066 * Many notebooks don't send key release event for volume up/down
1067 * keys, with key list below common among them
1069 static unsigned int atkbd_volume_forced_release_keys[] = {
1074 * OQO 01+ multimedia keys (64--66) generate e0 6x upon release whereas
1075 * they should be generating e4-e6 (0x80 | code).
1077 static unsigned int atkbd_oqo_01plus_scancode_fixup(struct atkbd *atkbd,
1080 if (atkbd->translated && atkbd->emul == 1 &&
1081 (code == 0x64 || code == 0x65 || code == 0x66)) {
1089 static int atkbd_get_keymap_from_fwnode(struct atkbd *atkbd)
1091 struct device *dev = &atkbd->ps2dev.serio->dev;
1094 u16 scancode, keycode;
1096 /* Parse "linux,keymap" property */
1097 n = device_property_count_u32(dev, "linux,keymap");
1098 if (n <= 0 || n > ATKBD_KEYMAP_SIZE)
1101 ptr = kcalloc(n, sizeof(u32), GFP_KERNEL);
1105 if (device_property_read_u32_array(dev, "linux,keymap", ptr, n)) {
1106 dev_err(dev, "problem parsing FW keymap property\n");
1111 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
1112 for (i = 0; i < n; i++) {
1113 scancode = SCANCODE(ptr[i]);
1114 keycode = KEYCODE(ptr[i]);
1115 atkbd->keycode[scancode] = keycode;
1123 * atkbd_set_keycode_table() initializes keyboard's keycode table
1124 * according to the selected scancode set
1127 static void atkbd_set_keycode_table(struct atkbd *atkbd)
1129 struct device *dev = &atkbd->ps2dev.serio->dev;
1130 unsigned int scancode;
1133 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
1134 bitmap_zero(atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1136 if (!atkbd_get_keymap_from_fwnode(atkbd)) {
1137 dev_dbg(dev, "Using FW keymap\n");
1138 } else if (atkbd->translated) {
1139 for (i = 0; i < 128; i++) {
1140 scancode = atkbd_unxlate_table[i];
1141 atkbd->keycode[i] = atkbd_set2_keycode[scancode];
1142 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
1144 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
1145 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
1146 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
1148 } else if (atkbd->set == 3) {
1149 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
1151 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
1154 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
1155 scancode = atkbd_scroll_keys[i].set2;
1156 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
1161 * HANGEUL and HANJA keys do not send release events so we need to
1162 * generate such events ourselves
1164 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
1165 atkbd->keycode[scancode] = KEY_HANGEUL;
1166 __set_bit(scancode, atkbd->force_release_mask);
1168 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
1169 atkbd->keycode[scancode] = KEY_HANJA;
1170 __set_bit(scancode, atkbd->force_release_mask);
1173 * Perform additional fixups
1175 if (atkbd_platform_fixup)
1176 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
1180 * atkbd_set_device_attrs() sets up keyboard's input device structure
1183 static void atkbd_set_device_attrs(struct atkbd *atkbd)
1185 struct input_dev *input_dev = atkbd->dev;
1189 snprintf(atkbd->name, sizeof(atkbd->name),
1190 "AT Set 2 Extra keyboard");
1192 snprintf(atkbd->name, sizeof(atkbd->name),
1193 "AT %s Set %d keyboard",
1194 atkbd->translated ? "Translated" : "Raw", atkbd->set);
1196 snprintf(atkbd->phys, sizeof(atkbd->phys),
1197 "%s/input0", atkbd->ps2dev.serio->phys);
1199 input_dev->name = atkbd->name;
1200 input_dev->phys = atkbd->phys;
1201 input_dev->id.bustype = BUS_I8042;
1202 input_dev->id.vendor = 0x0001;
1203 input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
1204 input_dev->id.version = atkbd->id;
1205 input_dev->event = atkbd_event;
1206 input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
1208 input_set_drvdata(input_dev, atkbd);
1210 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
1214 input_dev->evbit[0] |= BIT_MASK(EV_LED);
1215 input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
1216 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
1220 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
1221 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
1222 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
1224 if (!atkbd->softrepeat) {
1225 input_dev->rep[REP_DELAY] = 250;
1226 input_dev->rep[REP_PERIOD] = 33;
1229 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
1230 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
1232 if (atkbd->scroll) {
1233 input_dev->evbit[0] |= BIT_MASK(EV_REL);
1234 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
1235 BIT_MASK(REL_HWHEEL);
1236 __set_bit(BTN_MIDDLE, input_dev->keybit);
1239 input_dev->keycode = atkbd->keycode;
1240 input_dev->keycodesize = sizeof(unsigned short);
1241 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
1243 for (i = 0; i < ATKBD_KEYMAP_SIZE; i++) {
1244 if (atkbd->keycode[i] != KEY_RESERVED &&
1245 atkbd->keycode[i] != ATKBD_KEY_NULL &&
1246 atkbd->keycode[i] < ATKBD_SPECIAL) {
1247 __set_bit(atkbd->keycode[i], input_dev->keybit);
1252 static void atkbd_parse_fwnode_data(struct serio *serio)
1254 struct atkbd *atkbd = atkbd_from_serio(serio);
1255 struct device *dev = &serio->dev;
1258 /* Parse "function-row-physmap" property */
1259 n = device_property_count_u32(dev, "function-row-physmap");
1260 if (n > 0 && n <= VIVALDI_MAX_FUNCTION_ROW_KEYS &&
1261 !device_property_read_u32_array(dev, "function-row-physmap",
1262 atkbd->vdata.function_row_physmap,
1264 atkbd->vdata.num_function_row_keys = n;
1265 dev_dbg(dev, "FW reported %d function-row key locations\n", n);
1270 * atkbd_connect() is called when the serio module finds an interface
1271 * that isn't handled yet by an appropriate device driver. We check if
1272 * there is an AT keyboard out there and if yes, we register ourselves
1273 * to the input module.
1276 static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
1278 struct atkbd *atkbd;
1279 struct input_dev *dev;
1282 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
1283 dev = input_allocate_device();
1288 ps2_init(&atkbd->ps2dev, serio,
1289 atkbd_pre_receive_byte, atkbd_receive_byte);
1290 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
1291 mutex_init(&atkbd->mutex);
1293 switch (serio->id.type) {
1296 atkbd->translated = true;
1301 atkbd->write = true;
1305 atkbd->softraw = atkbd_softraw;
1306 atkbd->softrepeat = atkbd_softrepeat;
1307 atkbd->scroll = atkbd_scroll;
1309 if (atkbd->softrepeat)
1310 atkbd->softraw = true;
1312 serio_set_drvdata(serio, atkbd);
1314 err = serio_open(serio, drv);
1320 if (atkbd_probe(atkbd)) {
1325 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
1326 atkbd_reset_state(atkbd);
1333 atkbd_parse_fwnode_data(serio);
1335 atkbd_set_keycode_table(atkbd);
1336 atkbd_set_device_attrs(atkbd);
1338 atkbd_enable(atkbd);
1340 atkbd_activate(atkbd);
1342 err = input_register_device(atkbd->dev);
1348 fail3: serio_close(serio);
1349 fail2: serio_set_drvdata(serio, NULL);
1350 fail1: input_free_device(dev);
1356 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1357 * most likely called on resume.
1360 static int atkbd_reconnect(struct serio *serio)
1362 struct atkbd *atkbd = atkbd_from_serio(serio);
1363 struct serio_driver *drv = serio->drv;
1366 if (!atkbd || !drv) {
1367 dev_dbg(&serio->dev,
1368 "reconnect request, but serio is disconnected, ignoring...\n");
1372 mutex_lock(&atkbd->mutex);
1374 atkbd_disable(atkbd);
1377 if (atkbd_probe(atkbd))
1380 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
1384 * Restore LED state and repeat rate. While input core
1385 * will do this for us at resume time reconnect may happen
1386 * because user requested it via sysfs or simply because
1387 * keyboard was unplugged and plugged in again so we need
1388 * to do it ourselves here.
1390 atkbd_set_leds(atkbd);
1391 if (!atkbd->softrepeat)
1392 atkbd_set_repeat_rate(atkbd);
1397 * Reset our state machine in case reconnect happened in the middle
1398 * of multi-byte scancode.
1403 atkbd_enable(atkbd);
1405 atkbd_activate(atkbd);
1410 mutex_unlock(&atkbd->mutex);
1414 static const struct serio_device_id atkbd_serio_ids[] = {
1422 .type = SERIO_8042_XL,
1428 .type = SERIO_RS232,
1429 .proto = SERIO_PS2SER,
1436 MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1438 static struct serio_driver atkbd_drv = {
1441 .dev_groups = atkbd_attribute_groups,
1443 .description = DRIVER_DESC,
1444 .id_table = atkbd_serio_ids,
1445 .interrupt = ps2_interrupt,
1446 .connect = atkbd_connect,
1447 .reconnect = atkbd_reconnect,
1448 .disconnect = atkbd_disconnect,
1449 .cleanup = atkbd_cleanup,
1452 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1453 ssize_t (*handler)(struct atkbd *, char *))
1455 struct serio *serio = to_serio_port(dev);
1456 struct atkbd *atkbd = atkbd_from_serio(serio);
1458 return handler(atkbd, buf);
1461 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1462 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1464 struct serio *serio = to_serio_port(dev);
1465 struct atkbd *atkbd = atkbd_from_serio(serio);
1468 retval = mutex_lock_interruptible(&atkbd->mutex);
1472 atkbd_disable(atkbd);
1473 retval = handler(atkbd, buf, count);
1474 atkbd_enable(atkbd);
1476 mutex_unlock(&atkbd->mutex);
1481 static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1483 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1486 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1488 struct input_dev *old_dev, *new_dev;
1492 unsigned char old_set;
1497 err = kstrtouint(buf, 10, &value);
1504 if (atkbd->extra != value) {
1506 * Since device's properties will change we need to
1507 * unregister old device. But allocate and register
1508 * new one first to make sure we have it.
1510 old_dev = atkbd->dev;
1511 old_extra = atkbd->extra;
1512 old_set = atkbd->set;
1514 new_dev = input_allocate_device();
1518 atkbd->dev = new_dev;
1519 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
1520 atkbd_reset_state(atkbd);
1521 atkbd_activate(atkbd);
1522 atkbd_set_keycode_table(atkbd);
1523 atkbd_set_device_attrs(atkbd);
1525 err = input_register_device(atkbd->dev);
1527 input_free_device(new_dev);
1529 atkbd->dev = old_dev;
1530 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1531 atkbd_set_keycode_table(atkbd);
1532 atkbd_set_device_attrs(atkbd);
1536 input_unregister_device(old_dev);
1542 static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf)
1544 size_t len = scnprintf(buf, PAGE_SIZE - 1, "%*pbl",
1545 ATKBD_KEYMAP_SIZE, atkbd->force_release_mask);
1553 static ssize_t atkbd_set_force_release(struct atkbd *atkbd,
1554 const char *buf, size_t count)
1556 /* 64 bytes on stack should be acceptable */
1557 DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE);
1560 err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE);
1564 memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask));
1569 static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1571 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1574 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1576 struct input_dev *old_dev, *new_dev;
1581 err = kstrtouint(buf, 10, &value);
1588 if (atkbd->scroll != value) {
1589 old_dev = atkbd->dev;
1590 old_scroll = atkbd->scroll;
1592 new_dev = input_allocate_device();
1596 atkbd->dev = new_dev;
1597 atkbd->scroll = value;
1598 atkbd_set_keycode_table(atkbd);
1599 atkbd_set_device_attrs(atkbd);
1601 err = input_register_device(atkbd->dev);
1603 input_free_device(new_dev);
1605 atkbd->scroll = old_scroll;
1606 atkbd->dev = old_dev;
1607 atkbd_set_keycode_table(atkbd);
1608 atkbd_set_device_attrs(atkbd);
1612 input_unregister_device(old_dev);
1617 static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1619 return sprintf(buf, "%d\n", atkbd->set);
1622 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1624 struct input_dev *old_dev, *new_dev;
1627 unsigned char old_set;
1633 err = kstrtouint(buf, 10, &value);
1637 if (value != 2 && value != 3)
1640 if (atkbd->set != value) {
1641 old_dev = atkbd->dev;
1642 old_extra = atkbd->extra;
1643 old_set = atkbd->set;
1645 new_dev = input_allocate_device();
1649 atkbd->dev = new_dev;
1650 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
1651 atkbd_reset_state(atkbd);
1652 atkbd_activate(atkbd);
1653 atkbd_set_keycode_table(atkbd);
1654 atkbd_set_device_attrs(atkbd);
1656 err = input_register_device(atkbd->dev);
1658 input_free_device(new_dev);
1660 atkbd->dev = old_dev;
1661 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1662 atkbd_set_keycode_table(atkbd);
1663 atkbd_set_device_attrs(atkbd);
1667 input_unregister_device(old_dev);
1672 static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1674 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1677 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1679 struct input_dev *old_dev, *new_dev;
1682 bool old_softrepeat, old_softraw;
1687 err = kstrtouint(buf, 10, &value);
1694 if (atkbd->softrepeat != value) {
1695 old_dev = atkbd->dev;
1696 old_softrepeat = atkbd->softrepeat;
1697 old_softraw = atkbd->softraw;
1699 new_dev = input_allocate_device();
1703 atkbd->dev = new_dev;
1704 atkbd->softrepeat = value;
1705 if (atkbd->softrepeat)
1706 atkbd->softraw = true;
1707 atkbd_set_device_attrs(atkbd);
1709 err = input_register_device(atkbd->dev);
1711 input_free_device(new_dev);
1713 atkbd->dev = old_dev;
1714 atkbd->softrepeat = old_softrepeat;
1715 atkbd->softraw = old_softraw;
1716 atkbd_set_device_attrs(atkbd);
1720 input_unregister_device(old_dev);
1726 static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1728 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1731 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1733 struct input_dev *old_dev, *new_dev;
1738 err = kstrtouint(buf, 10, &value);
1745 if (atkbd->softraw != value) {
1746 old_dev = atkbd->dev;
1747 old_softraw = atkbd->softraw;
1749 new_dev = input_allocate_device();
1753 atkbd->dev = new_dev;
1754 atkbd->softraw = value;
1755 atkbd_set_device_attrs(atkbd);
1757 err = input_register_device(atkbd->dev);
1759 input_free_device(new_dev);
1761 atkbd->dev = old_dev;
1762 atkbd->softraw = old_softraw;
1763 atkbd_set_device_attrs(atkbd);
1767 input_unregister_device(old_dev);
1772 static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1774 return sprintf(buf, "%lu\n", atkbd->err_count);
1777 static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
1779 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1780 atkbd_platform_fixup_data = id->driver_data;
1785 static int __init atkbd_setup_scancode_fixup(const struct dmi_system_id *id)
1787 atkbd_platform_scancode_fixup = id->driver_data;
1792 static int __init atkbd_deactivate_fixup(const struct dmi_system_id *id)
1794 atkbd_skip_deactivate = true;
1799 * NOTE: do not add any more "force release" quirks to this table. The
1800 * task of adjusting list of keys that should be "released" automatically
1801 * by the driver is now delegated to userspace tools, such as udev, so
1802 * submit such quirks there.
1804 static const struct dmi_system_id atkbd_dmi_quirk_table[] __initconst = {
1807 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1808 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1810 .callback = atkbd_setup_forced_release,
1811 .driver_data = atkbd_dell_laptop_forced_release_keys,
1815 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1816 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1818 .callback = atkbd_setup_forced_release,
1819 .driver_data = atkbd_dell_laptop_forced_release_keys,
1823 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1824 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1826 .callback = atkbd_setup_forced_release,
1827 .driver_data = atkbd_hp_forced_release_keys,
1831 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1832 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1834 .callback = atkbd_setup_forced_release,
1835 .driver_data = atkbd_volume_forced_release_keys,
1839 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1840 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"),
1842 .callback = atkbd_setup_forced_release,
1843 .driver_data = atkbd_volume_forced_release_keys,
1847 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1848 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"),
1850 .callback = atkbd_setup_forced_release,
1851 .driver_data = atkbd_volume_forced_release_keys,
1855 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1856 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"),
1858 .callback = atkbd_setup_forced_release,
1859 .driver_data = atkbd_volume_forced_release_keys,
1862 /* Inventec Symphony */
1864 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1865 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1867 .callback = atkbd_setup_forced_release,
1868 .driver_data = atkbd_volume_forced_release_keys,
1873 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1874 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1876 .callback = atkbd_setup_forced_release,
1877 .driver_data = atkbd_samsung_forced_release_keys,
1882 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1883 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
1885 .callback = atkbd_setup_forced_release,
1886 .driver_data = atkbd_samsung_forced_release_keys,
1889 /* Samsung SQ45S70S */
1891 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1892 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
1894 .callback = atkbd_setup_forced_release,
1895 .driver_data = atkbd_samsung_forced_release_keys,
1898 /* Fujitsu Amilo PA 1510 */
1900 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1901 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1903 .callback = atkbd_setup_forced_release,
1904 .driver_data = atkbd_volume_forced_release_keys,
1907 /* Fujitsu Amilo Pi 3525 */
1909 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1910 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"),
1912 .callback = atkbd_setup_forced_release,
1913 .driver_data = atkbd_amilo_pi3525_forced_release_keys,
1916 /* Fujitsu Amilo Xi 3650 */
1918 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1919 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"),
1921 .callback = atkbd_setup_forced_release,
1922 .driver_data = atkbd_amilo_xi3650_forced_release_keys,
1926 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"),
1927 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"),
1929 .callback = atkbd_setup_forced_release,
1930 .driver_data = atkdb_soltech_ta12_forced_release_keys,
1935 DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
1936 DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
1938 .callback = atkbd_setup_scancode_fixup,
1939 .driver_data = atkbd_oqo_01plus_scancode_fixup,
1943 DMI_MATCH(DMI_SYS_VENDOR, "LG Electronics"),
1945 .callback = atkbd_deactivate_fixup,
1950 static int __init atkbd_init(void)
1952 dmi_check_system(atkbd_dmi_quirk_table);
1954 return serio_register_driver(&atkbd_drv);
1957 static void __exit atkbd_exit(void)
1959 serio_unregister_driver(&atkbd_drv);
1962 module_init(atkbd_init);
1963 module_exit(atkbd_exit);