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