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");
867 * Make sure nothing is coming from the keyboard and disturbs our
870 if (!atkbd_skip_deactivate)
871 atkbd_deactivate(atkbd);
877 * atkbd_select_set checks if a keyboard has a working Set 3 support, and
878 * sets it into that. Unfortunately there are keyboards that can be switched
879 * to Set 3, but don't work well in that (BTC Multimedia ...)
882 static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra)
884 struct ps2dev *ps2dev = &atkbd->ps2dev;
885 unsigned char param[2];
887 atkbd->extra = false;
889 * For known special keyboards we can go ahead and set the correct set.
890 * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and
891 * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards.
894 if (atkbd->translated)
897 if (atkbd->id == 0xaca1) {
899 ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET);
905 if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) {
911 if (atkbd_terminal) {
912 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MB);
919 if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) {
920 atkbd->id = param[0] << 8 | param[1];
925 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
929 if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET))
934 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
938 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR);
943 static int atkbd_reset_state(struct atkbd *atkbd)
945 struct ps2dev *ps2dev = &atkbd->ps2dev;
946 unsigned char param[1];
949 * Set the LEDs to a predefined state (all off).
953 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
957 * Set autorepeat to fastest possible.
961 if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP))
968 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
972 static void atkbd_cleanup(struct serio *serio)
974 struct atkbd *atkbd = atkbd_from_serio(serio);
976 atkbd_disable(atkbd);
977 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_DEF);
982 * atkbd_disconnect() closes and frees.
985 static void atkbd_disconnect(struct serio *serio)
987 struct atkbd *atkbd = atkbd_from_serio(serio);
989 atkbd_disable(atkbd);
991 input_unregister_device(atkbd->dev);
994 * Make sure we don't have a command in flight.
995 * Note that since atkbd->enabled is false event work will keep
996 * rescheduling itself until it gets canceled and will not try
997 * accessing freed input device or serio port.
999 cancel_delayed_work_sync(&atkbd->event_work);
1002 serio_set_drvdata(serio, NULL);
1007 * generate release events for the keycodes given in data
1009 static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
1012 const unsigned int *keys = data;
1015 if (atkbd->set == 2)
1016 for (i = 0; keys[i] != -1U; i++)
1017 __set_bit(keys[i], atkbd->force_release_mask);
1021 * Most special keys (Fn+F?) on Dell laptops do not generate release
1022 * events so we have to do it ourselves.
1024 static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
1025 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
1029 * Perform fixup for HP system that doesn't generate release
1030 * for its video switch
1032 static unsigned int atkbd_hp_forced_release_keys[] = {
1037 * Samsung NC10,NC20 with Fn+F? key release not working
1039 static unsigned int atkbd_samsung_forced_release_keys[] = {
1040 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
1044 * Amilo Pi 3525 key release for Fn+Volume keys not working
1046 static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = {
1047 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U
1051 * Amilo Xi 3650 key release for light touch bar not working
1053 static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
1054 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U
1058 * Soltech TA12 system with broken key release on volume keys and mute key
1060 static unsigned int atkdb_soltech_ta12_forced_release_keys[] = {
1061 0xa0, 0xae, 0xb0, -1U
1065 * Many notebooks don't send key release event for volume up/down
1066 * keys, with key list below common among them
1068 static unsigned int atkbd_volume_forced_release_keys[] = {
1073 * OQO 01+ multimedia keys (64--66) generate e0 6x upon release whereas
1074 * they should be generating e4-e6 (0x80 | code).
1076 static unsigned int atkbd_oqo_01plus_scancode_fixup(struct atkbd *atkbd,
1079 if (atkbd->translated && atkbd->emul == 1 &&
1080 (code == 0x64 || code == 0x65 || code == 0x66)) {
1088 static int atkbd_get_keymap_from_fwnode(struct atkbd *atkbd)
1090 struct device *dev = &atkbd->ps2dev.serio->dev;
1093 u16 scancode, keycode;
1095 /* Parse "linux,keymap" property */
1096 n = device_property_count_u32(dev, "linux,keymap");
1097 if (n <= 0 || n > ATKBD_KEYMAP_SIZE)
1100 ptr = kcalloc(n, sizeof(u32), GFP_KERNEL);
1104 if (device_property_read_u32_array(dev, "linux,keymap", ptr, n)) {
1105 dev_err(dev, "problem parsing FW keymap property\n");
1110 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
1111 for (i = 0; i < n; i++) {
1112 scancode = SCANCODE(ptr[i]);
1113 keycode = KEYCODE(ptr[i]);
1114 atkbd->keycode[scancode] = keycode;
1122 * atkbd_set_keycode_table() initializes keyboard's keycode table
1123 * according to the selected scancode set
1126 static void atkbd_set_keycode_table(struct atkbd *atkbd)
1128 struct device *dev = &atkbd->ps2dev.serio->dev;
1129 unsigned int scancode;
1132 memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
1133 bitmap_zero(atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
1135 if (!atkbd_get_keymap_from_fwnode(atkbd)) {
1136 dev_dbg(dev, "Using FW keymap\n");
1137 } else if (atkbd->translated) {
1138 for (i = 0; i < 128; i++) {
1139 scancode = atkbd_unxlate_table[i];
1140 atkbd->keycode[i] = atkbd_set2_keycode[scancode];
1141 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
1143 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
1144 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
1145 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
1147 } else if (atkbd->set == 3) {
1148 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
1150 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
1153 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
1154 scancode = atkbd_scroll_keys[i].set2;
1155 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
1160 * HANGEUL and HANJA keys do not send release events so we need to
1161 * generate such events ourselves
1163 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
1164 atkbd->keycode[scancode] = KEY_HANGEUL;
1165 __set_bit(scancode, atkbd->force_release_mask);
1167 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
1168 atkbd->keycode[scancode] = KEY_HANJA;
1169 __set_bit(scancode, atkbd->force_release_mask);
1172 * Perform additional fixups
1174 if (atkbd_platform_fixup)
1175 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
1179 * atkbd_set_device_attrs() sets up keyboard's input device structure
1182 static void atkbd_set_device_attrs(struct atkbd *atkbd)
1184 struct input_dev *input_dev = atkbd->dev;
1188 snprintf(atkbd->name, sizeof(atkbd->name),
1189 "AT Set 2 Extra keyboard");
1191 snprintf(atkbd->name, sizeof(atkbd->name),
1192 "AT %s Set %d keyboard",
1193 atkbd->translated ? "Translated" : "Raw", atkbd->set);
1195 snprintf(atkbd->phys, sizeof(atkbd->phys),
1196 "%s/input0", atkbd->ps2dev.serio->phys);
1198 input_dev->name = atkbd->name;
1199 input_dev->phys = atkbd->phys;
1200 input_dev->id.bustype = BUS_I8042;
1201 input_dev->id.vendor = 0x0001;
1202 input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
1203 input_dev->id.version = atkbd->id;
1204 input_dev->event = atkbd_event;
1205 input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
1207 input_set_drvdata(input_dev, atkbd);
1209 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
1213 input_dev->evbit[0] |= BIT_MASK(EV_LED);
1214 input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
1215 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
1219 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
1220 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
1221 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
1223 if (!atkbd->softrepeat) {
1224 input_dev->rep[REP_DELAY] = 250;
1225 input_dev->rep[REP_PERIOD] = 33;
1228 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
1229 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
1231 if (atkbd->scroll) {
1232 input_dev->evbit[0] |= BIT_MASK(EV_REL);
1233 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
1234 BIT_MASK(REL_HWHEEL);
1235 __set_bit(BTN_MIDDLE, input_dev->keybit);
1238 input_dev->keycode = atkbd->keycode;
1239 input_dev->keycodesize = sizeof(unsigned short);
1240 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
1242 for (i = 0; i < ATKBD_KEYMAP_SIZE; i++) {
1243 if (atkbd->keycode[i] != KEY_RESERVED &&
1244 atkbd->keycode[i] != ATKBD_KEY_NULL &&
1245 atkbd->keycode[i] < ATKBD_SPECIAL) {
1246 __set_bit(atkbd->keycode[i], input_dev->keybit);
1251 static void atkbd_parse_fwnode_data(struct serio *serio)
1253 struct atkbd *atkbd = atkbd_from_serio(serio);
1254 struct device *dev = &serio->dev;
1257 /* Parse "function-row-physmap" property */
1258 n = device_property_count_u32(dev, "function-row-physmap");
1259 if (n > 0 && n <= VIVALDI_MAX_FUNCTION_ROW_KEYS &&
1260 !device_property_read_u32_array(dev, "function-row-physmap",
1261 atkbd->vdata.function_row_physmap,
1263 atkbd->vdata.num_function_row_keys = n;
1264 dev_dbg(dev, "FW reported %d function-row key locations\n", n);
1269 * atkbd_connect() is called when the serio module finds an interface
1270 * that isn't handled yet by an appropriate device driver. We check if
1271 * there is an AT keyboard out there and if yes, we register ourselves
1272 * to the input module.
1275 static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
1277 struct atkbd *atkbd;
1278 struct input_dev *dev;
1281 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
1282 dev = input_allocate_device();
1287 ps2_init(&atkbd->ps2dev, serio,
1288 atkbd_pre_receive_byte, atkbd_receive_byte);
1289 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
1290 mutex_init(&atkbd->mutex);
1292 switch (serio->id.type) {
1295 atkbd->translated = true;
1300 atkbd->write = true;
1304 atkbd->softraw = atkbd_softraw;
1305 atkbd->softrepeat = atkbd_softrepeat;
1306 atkbd->scroll = atkbd_scroll;
1308 if (atkbd->softrepeat)
1309 atkbd->softraw = true;
1311 serio_set_drvdata(serio, atkbd);
1313 err = serio_open(serio, drv);
1319 if (atkbd_probe(atkbd)) {
1324 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
1325 atkbd_reset_state(atkbd);
1332 atkbd_parse_fwnode_data(serio);
1334 atkbd_set_keycode_table(atkbd);
1335 atkbd_set_device_attrs(atkbd);
1337 atkbd_enable(atkbd);
1339 atkbd_activate(atkbd);
1341 err = input_register_device(atkbd->dev);
1347 fail3: serio_close(serio);
1348 fail2: serio_set_drvdata(serio, NULL);
1349 fail1: input_free_device(dev);
1355 * atkbd_reconnect() tries to restore keyboard into a sane state and is
1356 * most likely called on resume.
1359 static int atkbd_reconnect(struct serio *serio)
1361 struct atkbd *atkbd = atkbd_from_serio(serio);
1362 struct serio_driver *drv = serio->drv;
1365 if (!atkbd || !drv) {
1366 dev_dbg(&serio->dev,
1367 "reconnect request, but serio is disconnected, ignoring...\n");
1371 mutex_lock(&atkbd->mutex);
1373 atkbd_disable(atkbd);
1376 if (atkbd_probe(atkbd))
1379 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
1383 * Restore LED state and repeat rate. While input core
1384 * will do this for us at resume time reconnect may happen
1385 * because user requested it via sysfs or simply because
1386 * keyboard was unplugged and plugged in again so we need
1387 * to do it ourselves here.
1389 atkbd_set_leds(atkbd);
1390 if (!atkbd->softrepeat)
1391 atkbd_set_repeat_rate(atkbd);
1396 * Reset our state machine in case reconnect happened in the middle
1397 * of multi-byte scancode.
1402 atkbd_enable(atkbd);
1404 atkbd_activate(atkbd);
1409 mutex_unlock(&atkbd->mutex);
1413 static const struct serio_device_id atkbd_serio_ids[] = {
1421 .type = SERIO_8042_XL,
1427 .type = SERIO_RS232,
1428 .proto = SERIO_PS2SER,
1435 MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
1437 static struct serio_driver atkbd_drv = {
1440 .dev_groups = atkbd_attribute_groups,
1442 .description = DRIVER_DESC,
1443 .id_table = atkbd_serio_ids,
1444 .interrupt = ps2_interrupt,
1445 .connect = atkbd_connect,
1446 .reconnect = atkbd_reconnect,
1447 .disconnect = atkbd_disconnect,
1448 .cleanup = atkbd_cleanup,
1451 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
1452 ssize_t (*handler)(struct atkbd *, char *))
1454 struct serio *serio = to_serio_port(dev);
1455 struct atkbd *atkbd = atkbd_from_serio(serio);
1457 return handler(atkbd, buf);
1460 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
1461 ssize_t (*handler)(struct atkbd *, const char *, size_t))
1463 struct serio *serio = to_serio_port(dev);
1464 struct atkbd *atkbd = atkbd_from_serio(serio);
1467 retval = mutex_lock_interruptible(&atkbd->mutex);
1471 atkbd_disable(atkbd);
1472 retval = handler(atkbd, buf, count);
1473 atkbd_enable(atkbd);
1475 mutex_unlock(&atkbd->mutex);
1480 static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
1482 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
1485 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
1487 struct input_dev *old_dev, *new_dev;
1491 unsigned char old_set;
1496 err = kstrtouint(buf, 10, &value);
1503 if (atkbd->extra != value) {
1505 * Since device's properties will change we need to
1506 * unregister old device. But allocate and register
1507 * new one first to make sure we have it.
1509 old_dev = atkbd->dev;
1510 old_extra = atkbd->extra;
1511 old_set = atkbd->set;
1513 new_dev = input_allocate_device();
1517 atkbd->dev = new_dev;
1518 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
1519 atkbd_reset_state(atkbd);
1520 atkbd_activate(atkbd);
1521 atkbd_set_keycode_table(atkbd);
1522 atkbd_set_device_attrs(atkbd);
1524 err = input_register_device(atkbd->dev);
1526 input_free_device(new_dev);
1528 atkbd->dev = old_dev;
1529 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1530 atkbd_set_keycode_table(atkbd);
1531 atkbd_set_device_attrs(atkbd);
1535 input_unregister_device(old_dev);
1541 static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf)
1543 size_t len = scnprintf(buf, PAGE_SIZE - 1, "%*pbl",
1544 ATKBD_KEYMAP_SIZE, atkbd->force_release_mask);
1552 static ssize_t atkbd_set_force_release(struct atkbd *atkbd,
1553 const char *buf, size_t count)
1555 /* 64 bytes on stack should be acceptable */
1556 DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE);
1559 err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE);
1563 memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask));
1568 static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
1570 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
1573 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
1575 struct input_dev *old_dev, *new_dev;
1580 err = kstrtouint(buf, 10, &value);
1587 if (atkbd->scroll != value) {
1588 old_dev = atkbd->dev;
1589 old_scroll = atkbd->scroll;
1591 new_dev = input_allocate_device();
1595 atkbd->dev = new_dev;
1596 atkbd->scroll = value;
1597 atkbd_set_keycode_table(atkbd);
1598 atkbd_set_device_attrs(atkbd);
1600 err = input_register_device(atkbd->dev);
1602 input_free_device(new_dev);
1604 atkbd->scroll = old_scroll;
1605 atkbd->dev = old_dev;
1606 atkbd_set_keycode_table(atkbd);
1607 atkbd_set_device_attrs(atkbd);
1611 input_unregister_device(old_dev);
1616 static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
1618 return sprintf(buf, "%d\n", atkbd->set);
1621 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
1623 struct input_dev *old_dev, *new_dev;
1626 unsigned char old_set;
1632 err = kstrtouint(buf, 10, &value);
1636 if (value != 2 && value != 3)
1639 if (atkbd->set != value) {
1640 old_dev = atkbd->dev;
1641 old_extra = atkbd->extra;
1642 old_set = atkbd->set;
1644 new_dev = input_allocate_device();
1648 atkbd->dev = new_dev;
1649 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
1650 atkbd_reset_state(atkbd);
1651 atkbd_activate(atkbd);
1652 atkbd_set_keycode_table(atkbd);
1653 atkbd_set_device_attrs(atkbd);
1655 err = input_register_device(atkbd->dev);
1657 input_free_device(new_dev);
1659 atkbd->dev = old_dev;
1660 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
1661 atkbd_set_keycode_table(atkbd);
1662 atkbd_set_device_attrs(atkbd);
1666 input_unregister_device(old_dev);
1671 static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
1673 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
1676 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
1678 struct input_dev *old_dev, *new_dev;
1681 bool old_softrepeat, old_softraw;
1686 err = kstrtouint(buf, 10, &value);
1693 if (atkbd->softrepeat != value) {
1694 old_dev = atkbd->dev;
1695 old_softrepeat = atkbd->softrepeat;
1696 old_softraw = atkbd->softraw;
1698 new_dev = input_allocate_device();
1702 atkbd->dev = new_dev;
1703 atkbd->softrepeat = value;
1704 if (atkbd->softrepeat)
1705 atkbd->softraw = true;
1706 atkbd_set_device_attrs(atkbd);
1708 err = input_register_device(atkbd->dev);
1710 input_free_device(new_dev);
1712 atkbd->dev = old_dev;
1713 atkbd->softrepeat = old_softrepeat;
1714 atkbd->softraw = old_softraw;
1715 atkbd_set_device_attrs(atkbd);
1719 input_unregister_device(old_dev);
1725 static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
1727 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
1730 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
1732 struct input_dev *old_dev, *new_dev;
1737 err = kstrtouint(buf, 10, &value);
1744 if (atkbd->softraw != value) {
1745 old_dev = atkbd->dev;
1746 old_softraw = atkbd->softraw;
1748 new_dev = input_allocate_device();
1752 atkbd->dev = new_dev;
1753 atkbd->softraw = value;
1754 atkbd_set_device_attrs(atkbd);
1756 err = input_register_device(atkbd->dev);
1758 input_free_device(new_dev);
1760 atkbd->dev = old_dev;
1761 atkbd->softraw = old_softraw;
1762 atkbd_set_device_attrs(atkbd);
1766 input_unregister_device(old_dev);
1771 static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1773 return sprintf(buf, "%lu\n", atkbd->err_count);
1776 static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
1778 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1779 atkbd_platform_fixup_data = id->driver_data;
1784 static int __init atkbd_setup_scancode_fixup(const struct dmi_system_id *id)
1786 atkbd_platform_scancode_fixup = id->driver_data;
1791 static int __init atkbd_deactivate_fixup(const struct dmi_system_id *id)
1793 atkbd_skip_deactivate = true;
1798 * NOTE: do not add any more "force release" quirks to this table. The
1799 * task of adjusting list of keys that should be "released" automatically
1800 * by the driver is now delegated to userspace tools, such as udev, so
1801 * submit such quirks there.
1803 static const struct dmi_system_id atkbd_dmi_quirk_table[] __initconst = {
1806 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1807 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1809 .callback = atkbd_setup_forced_release,
1810 .driver_data = atkbd_dell_laptop_forced_release_keys,
1814 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1815 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1817 .callback = atkbd_setup_forced_release,
1818 .driver_data = atkbd_dell_laptop_forced_release_keys,
1822 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1823 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1825 .callback = atkbd_setup_forced_release,
1826 .driver_data = atkbd_hp_forced_release_keys,
1830 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1831 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1833 .callback = atkbd_setup_forced_release,
1834 .driver_data = atkbd_volume_forced_release_keys,
1838 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1839 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"),
1841 .callback = atkbd_setup_forced_release,
1842 .driver_data = atkbd_volume_forced_release_keys,
1846 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1847 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"),
1849 .callback = atkbd_setup_forced_release,
1850 .driver_data = atkbd_volume_forced_release_keys,
1854 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1855 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"),
1857 .callback = atkbd_setup_forced_release,
1858 .driver_data = atkbd_volume_forced_release_keys,
1861 /* Inventec Symphony */
1863 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1864 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1866 .callback = atkbd_setup_forced_release,
1867 .driver_data = atkbd_volume_forced_release_keys,
1872 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1873 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1875 .callback = atkbd_setup_forced_release,
1876 .driver_data = atkbd_samsung_forced_release_keys,
1881 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1882 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
1884 .callback = atkbd_setup_forced_release,
1885 .driver_data = atkbd_samsung_forced_release_keys,
1888 /* Samsung SQ45S70S */
1890 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1891 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
1893 .callback = atkbd_setup_forced_release,
1894 .driver_data = atkbd_samsung_forced_release_keys,
1897 /* Fujitsu Amilo PA 1510 */
1899 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1900 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1902 .callback = atkbd_setup_forced_release,
1903 .driver_data = atkbd_volume_forced_release_keys,
1906 /* Fujitsu Amilo Pi 3525 */
1908 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1909 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"),
1911 .callback = atkbd_setup_forced_release,
1912 .driver_data = atkbd_amilo_pi3525_forced_release_keys,
1915 /* Fujitsu Amilo Xi 3650 */
1917 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1918 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"),
1920 .callback = atkbd_setup_forced_release,
1921 .driver_data = atkbd_amilo_xi3650_forced_release_keys,
1925 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"),
1926 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"),
1928 .callback = atkbd_setup_forced_release,
1929 .driver_data = atkdb_soltech_ta12_forced_release_keys,
1934 DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
1935 DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
1937 .callback = atkbd_setup_scancode_fixup,
1938 .driver_data = atkbd_oqo_01plus_scancode_fixup,
1942 DMI_MATCH(DMI_SYS_VENDOR, "LG Electronics"),
1944 .callback = atkbd_deactivate_fixup,
1949 static int __init atkbd_init(void)
1951 dmi_check_system(atkbd_dmi_quirk_table);
1953 return serio_register_driver(&atkbd_drv);
1956 static void __exit atkbd_exit(void)
1958 serio_unregister_driver(&atkbd_drv);
1961 module_init(atkbd_init);
1962 module_exit(atkbd_exit);