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 int atkbd_reset; 44 #else 45 static int atkbd_reset = 1; 46 #endif 47 module_param_named(reset, atkbd_reset, bool, 0); 48 MODULE_PARM_DESC(reset, "Reset keyboard during initialization"); 49 50 static int atkbd_softrepeat; 51 module_param_named(softrepeat, atkbd_softrepeat, bool, 0); 52 MODULE_PARM_DESC(softrepeat, "Use software keyboard repeat"); 53 54 static int atkbd_softraw = 1; 55 module_param_named(softraw, atkbd_softraw, bool, 0); 56 MODULE_PARM_DESC(softraw, "Use software generated rawmode"); 57 58 static int 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 int 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 /* 67 * Scancode to keycode tables. These are just the default setting, and 68 * are loadable via a userland utility. 69 */ 70 71 #define ATKBD_KEYMAP_SIZE 512 72 73 static const unsigned short atkbd_set2_keycode[ATKBD_KEYMAP_SIZE] = { 74 75 #ifdef CONFIG_KEYBOARD_ATKBD_HP_KEYCODES 76 77 /* XXX: need a more general approach */ 78 79 #include "hpps2atkbd.h" /* include the keyboard scancodes */ 80 81 #else 82 0, 67, 65, 63, 61, 59, 60, 88, 0, 68, 66, 64, 62, 15, 41,117, 83 0, 56, 42, 93, 29, 16, 2, 0, 0, 0, 44, 31, 30, 17, 3, 0, 84 0, 46, 45, 32, 18, 5, 4, 95, 0, 57, 47, 33, 20, 19, 6,183, 85 0, 49, 48, 35, 34, 21, 7,184, 0, 0, 50, 36, 22, 8, 9,185, 86 0, 51, 37, 23, 24, 11, 10, 0, 0, 52, 53, 38, 39, 25, 12, 0, 87 0, 89, 40, 0, 26, 13, 0, 0, 58, 54, 28, 27, 0, 43, 0, 85, 88 0, 86, 91, 90, 92, 0, 14, 94, 0, 79,124, 75, 71,121, 0, 0, 89 82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99, 90 91 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 92 217,100,255, 0, 97,165, 0, 0,156, 0, 0, 0, 0, 0, 0,125, 93 173,114, 0,113, 0, 0, 0,126,128, 0, 0,140, 0, 0, 0,127, 94 159, 0,115, 0,164, 0, 0,116,158, 0,172,166, 0, 0, 0,142, 95 157, 0, 0, 0, 0, 0, 0, 0,155, 0, 98, 0, 0,163, 0, 0, 96 226, 0, 0, 0, 0, 0, 0, 0, 0,255, 96, 0, 0, 0,143, 0, 97 0, 0, 0, 0, 0, 0, 0, 0, 0,107, 0,105,102, 0, 0,112, 98 110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119, 0, 99 100 0, 0, 0, 65, 99, 101 #endif 102 }; 103 104 static const unsigned short atkbd_set3_keycode[ATKBD_KEYMAP_SIZE] = { 105 106 0, 0, 0, 0, 0, 0, 0, 59, 1,138,128,129,130, 15, 41, 60, 107 131, 29, 42, 86, 58, 16, 2, 61,133, 56, 44, 31, 30, 17, 3, 62, 108 134, 46, 45, 32, 18, 5, 4, 63,135, 57, 47, 33, 20, 19, 6, 64, 109 136, 49, 48, 35, 34, 21, 7, 65,137,100, 50, 36, 22, 8, 9, 66, 110 125, 51, 37, 23, 24, 11, 10, 67,126, 52, 53, 38, 39, 25, 12, 68, 111 113,114, 40, 43, 26, 13, 87, 99, 97, 54, 28, 27, 43, 43, 88, 70, 112 108,105,119,103,111,107, 14,110, 0, 79,106, 75, 71,109,102,104, 113 82, 83, 80, 76, 77, 72, 69, 98, 0, 96, 81, 0, 78, 73, 55,183, 114 115 184,185,186,187, 74, 94, 92, 93, 0, 0, 0,125,126,127,112, 0, 116 0,139,172,163,165,115,152,172,166,140,160,154,113,114,167,168, 117 148,149,147,140 118 }; 119 120 static const unsigned short atkbd_unxlate_table[128] = { 121 0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13, 122 21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27, 123 35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42, 124 50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88, 5, 6, 4, 12, 3, 125 11, 2, 10, 1, 9,119,126,108,117,125,123,107,115,116,121,105, 126 114,122,112,113,127, 96, 97,120, 7, 15, 23, 31, 39, 47, 55, 63, 127 71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111, 128 19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110 129 }; 130 131 #define ATKBD_CMD_SETLEDS 0x10ed 132 #define ATKBD_CMD_GSCANSET 0x11f0 133 #define ATKBD_CMD_SSCANSET 0x10f0 134 #define ATKBD_CMD_GETID 0x02f2 135 #define ATKBD_CMD_SETREP 0x10f3 136 #define ATKBD_CMD_ENABLE 0x00f4 137 #define ATKBD_CMD_RESET_DIS 0x00f5 138 #define ATKBD_CMD_SETALL_MBR 0x00fa 139 #define ATKBD_CMD_RESET_BAT 0x02ff 140 #define ATKBD_CMD_RESEND 0x00fe 141 #define ATKBD_CMD_EX_ENABLE 0x10ea 142 #define ATKBD_CMD_EX_SETLEDS 0x20eb 143 #define ATKBD_CMD_OK_GETID 0x02e8 144 145 #define ATKBD_RET_ACK 0xfa 146 #define ATKBD_RET_NAK 0xfe 147 #define ATKBD_RET_BAT 0xaa 148 #define ATKBD_RET_EMUL0 0xe0 149 #define ATKBD_RET_EMUL1 0xe1 150 #define ATKBD_RET_RELEASE 0xf0 151 #define ATKBD_RET_HANJA 0xf1 152 #define ATKBD_RET_HANGEUL 0xf2 153 #define ATKBD_RET_ERR 0xff 154 155 #define ATKBD_KEY_UNKNOWN 0 156 #define ATKBD_KEY_NULL 255 157 158 #define ATKBD_SCR_1 254 159 #define ATKBD_SCR_2 253 160 #define ATKBD_SCR_4 252 161 #define ATKBD_SCR_8 251 162 #define ATKBD_SCR_CLICK 250 163 #define ATKBD_SCR_LEFT 249 164 #define ATKBD_SCR_RIGHT 248 165 166 #define ATKBD_SPECIAL ATKBD_SCR_RIGHT 167 168 #define ATKBD_LED_EVENT_BIT 0 169 #define ATKBD_REP_EVENT_BIT 1 170 171 #define ATKBD_XL_ERR 0x01 172 #define ATKBD_XL_BAT 0x02 173 #define ATKBD_XL_ACK 0x04 174 #define ATKBD_XL_NAK 0x08 175 #define ATKBD_XL_HANGEUL 0x10 176 #define ATKBD_XL_HANJA 0x20 177 178 static const struct { 179 unsigned char keycode; 180 unsigned char set2; 181 } atkbd_scroll_keys[] = { 182 { ATKBD_SCR_1, 0xc5 }, 183 { ATKBD_SCR_2, 0x9d }, 184 { ATKBD_SCR_4, 0xa4 }, 185 { ATKBD_SCR_8, 0x9b }, 186 { ATKBD_SCR_CLICK, 0xe0 }, 187 { ATKBD_SCR_LEFT, 0xcb }, 188 { ATKBD_SCR_RIGHT, 0xd2 }, 189 }; 190 191 /* 192 * The atkbd control structure 193 */ 194 195 struct atkbd { 196 197 struct ps2dev ps2dev; 198 struct input_dev *dev; 199 200 /* Written only during init */ 201 char name[64]; 202 char phys[32]; 203 204 unsigned short id; 205 unsigned short keycode[ATKBD_KEYMAP_SIZE]; 206 DECLARE_BITMAP(force_release_mask, ATKBD_KEYMAP_SIZE); 207 unsigned char set; 208 unsigned char translated; 209 unsigned char extra; 210 unsigned char write; 211 unsigned char softrepeat; 212 unsigned char softraw; 213 unsigned char scroll; 214 unsigned char enabled; 215 216 /* Accessed only from interrupt */ 217 unsigned char emul; 218 unsigned char resend; 219 unsigned char release; 220 unsigned long xl_bit; 221 unsigned int last; 222 unsigned long time; 223 unsigned long err_count; 224 225 struct delayed_work event_work; 226 unsigned long event_jiffies; 227 struct mutex event_mutex; 228 unsigned long event_mask; 229 }; 230 231 /* 232 * System-specific keymap fixup routine 233 */ 234 static void (*atkbd_platform_fixup)(struct atkbd *, const void *data); 235 static void *atkbd_platform_fixup_data; 236 237 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf, 238 ssize_t (*handler)(struct atkbd *, char *)); 239 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count, 240 ssize_t (*handler)(struct atkbd *, const char *, size_t)); 241 #define ATKBD_DEFINE_ATTR(_name) \ 242 static ssize_t atkbd_show_##_name(struct atkbd *, char *); \ 243 static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \ 244 static ssize_t atkbd_do_show_##_name(struct device *d, \ 245 struct device_attribute *attr, char *b) \ 246 { \ 247 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \ 248 } \ 249 static ssize_t atkbd_do_set_##_name(struct device *d, \ 250 struct device_attribute *attr, const char *b, size_t s) \ 251 { \ 252 return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \ 253 } \ 254 static struct device_attribute atkbd_attr_##_name = \ 255 __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name); 256 257 ATKBD_DEFINE_ATTR(extra); 258 ATKBD_DEFINE_ATTR(force_release); 259 ATKBD_DEFINE_ATTR(scroll); 260 ATKBD_DEFINE_ATTR(set); 261 ATKBD_DEFINE_ATTR(softrepeat); 262 ATKBD_DEFINE_ATTR(softraw); 263 264 #define ATKBD_DEFINE_RO_ATTR(_name) \ 265 static ssize_t atkbd_show_##_name(struct atkbd *, char *); \ 266 static ssize_t atkbd_do_show_##_name(struct device *d, \ 267 struct device_attribute *attr, char *b) \ 268 { \ 269 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \ 270 } \ 271 static struct device_attribute atkbd_attr_##_name = \ 272 __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL); 273 274 ATKBD_DEFINE_RO_ATTR(err_count); 275 276 static struct attribute *atkbd_attributes[] = { 277 &atkbd_attr_extra.attr, 278 &atkbd_attr_force_release.attr, 279 &atkbd_attr_scroll.attr, 280 &atkbd_attr_set.attr, 281 &atkbd_attr_softrepeat.attr, 282 &atkbd_attr_softraw.attr, 283 &atkbd_attr_err_count.attr, 284 NULL 285 }; 286 287 static struct attribute_group atkbd_attribute_group = { 288 .attrs = atkbd_attributes, 289 }; 290 291 static const unsigned int xl_table[] = { 292 ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK, 293 ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL, 294 }; 295 296 /* 297 * Checks if we should mangle the scancode to extract 'release' bit 298 * in translated mode. 299 */ 300 static int atkbd_need_xlate(unsigned long xl_bit, unsigned char code) 301 { 302 int i; 303 304 if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1) 305 return 0; 306 307 for (i = 0; i < ARRAY_SIZE(xl_table); i++) 308 if (code == xl_table[i]) 309 return test_bit(i, &xl_bit); 310 311 return 1; 312 } 313 314 /* 315 * Calculates new value of xl_bit so the driver can distinguish 316 * between make/break pair of scancodes for select keys and PS/2 317 * protocol responses. 318 */ 319 static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code) 320 { 321 int i; 322 323 for (i = 0; i < ARRAY_SIZE(xl_table); i++) { 324 if (!((code ^ xl_table[i]) & 0x7f)) { 325 if (code & 0x80) 326 __clear_bit(i, &atkbd->xl_bit); 327 else 328 __set_bit(i, &atkbd->xl_bit); 329 break; 330 } 331 } 332 } 333 334 /* 335 * Encode the scancode, 0xe0 prefix, and high bit into a single integer, 336 * keeping kernel 2.4 compatibility for set 2 337 */ 338 static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code) 339 { 340 if (atkbd->set == 3) { 341 if (atkbd->emul == 1) 342 code |= 0x100; 343 } else { 344 code = (code & 0x7f) | ((code & 0x80) << 1); 345 if (atkbd->emul == 1) 346 code |= 0x80; 347 } 348 349 return code; 350 } 351 352 /* 353 * atkbd_interrupt(). Here takes place processing of data received from 354 * the keyboard into events. 355 */ 356 357 static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data, 358 unsigned int flags) 359 { 360 struct atkbd *atkbd = serio_get_drvdata(serio); 361 struct input_dev *dev = atkbd->dev; 362 unsigned int code = data; 363 int scroll = 0, hscroll = 0, click = -1; 364 int value; 365 unsigned short keycode; 366 367 #ifdef ATKBD_DEBUG 368 printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags); 369 #endif 370 371 #if !defined(__i386__) && !defined (__x86_64__) 372 if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) { 373 printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags); 374 serio_write(serio, ATKBD_CMD_RESEND); 375 atkbd->resend = 1; 376 goto out; 377 } 378 379 if (!flags && data == ATKBD_RET_ACK) 380 atkbd->resend = 0; 381 #endif 382 383 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK)) 384 if (ps2_handle_ack(&atkbd->ps2dev, data)) 385 goto out; 386 387 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD)) 388 if (ps2_handle_response(&atkbd->ps2dev, data)) 389 goto out; 390 391 if (!atkbd->enabled) 392 goto out; 393 394 input_event(dev, EV_MSC, MSC_RAW, code); 395 396 if (atkbd->translated) { 397 398 if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) { 399 atkbd->release = code >> 7; 400 code &= 0x7f; 401 } 402 403 if (!atkbd->emul) 404 atkbd_calculate_xl_bit(atkbd, data); 405 } 406 407 switch (code) { 408 case ATKBD_RET_BAT: 409 atkbd->enabled = 0; 410 serio_reconnect(atkbd->ps2dev.serio); 411 goto out; 412 case ATKBD_RET_EMUL0: 413 atkbd->emul = 1; 414 goto out; 415 case ATKBD_RET_EMUL1: 416 atkbd->emul = 2; 417 goto out; 418 case ATKBD_RET_RELEASE: 419 atkbd->release = 1; 420 goto out; 421 case ATKBD_RET_ACK: 422 case ATKBD_RET_NAK: 423 if (printk_ratelimit()) 424 printk(KERN_WARNING "atkbd.c: Spurious %s on %s. " 425 "Some program might be trying access hardware directly.\n", 426 data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys); 427 goto out; 428 case ATKBD_RET_ERR: 429 atkbd->err_count++; 430 #ifdef ATKBD_DEBUG 431 printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys); 432 #endif 433 goto out; 434 } 435 436 code = atkbd_compat_scancode(atkbd, code); 437 438 if (atkbd->emul && --atkbd->emul) 439 goto out; 440 441 keycode = atkbd->keycode[code]; 442 443 if (keycode != ATKBD_KEY_NULL) 444 input_event(dev, EV_MSC, MSC_SCAN, code); 445 446 switch (keycode) { 447 case ATKBD_KEY_NULL: 448 break; 449 case ATKBD_KEY_UNKNOWN: 450 printk(KERN_WARNING 451 "atkbd.c: Unknown key %s (%s set %d, code %#x on %s).\n", 452 atkbd->release ? "released" : "pressed", 453 atkbd->translated ? "translated" : "raw", 454 atkbd->set, code, serio->phys); 455 printk(KERN_WARNING 456 "atkbd.c: Use 'setkeycodes %s%02x <keycode>' to make it known.\n", 457 code & 0x80 ? "e0" : "", code & 0x7f); 458 input_sync(dev); 459 break; 460 case ATKBD_SCR_1: 461 scroll = 1 - atkbd->release * 2; 462 break; 463 case ATKBD_SCR_2: 464 scroll = 2 - atkbd->release * 4; 465 break; 466 case ATKBD_SCR_4: 467 scroll = 4 - atkbd->release * 8; 468 break; 469 case ATKBD_SCR_8: 470 scroll = 8 - atkbd->release * 16; 471 break; 472 case ATKBD_SCR_CLICK: 473 click = !atkbd->release; 474 break; 475 case ATKBD_SCR_LEFT: 476 hscroll = -1; 477 break; 478 case ATKBD_SCR_RIGHT: 479 hscroll = 1; 480 break; 481 default: 482 if (atkbd->release) { 483 value = 0; 484 atkbd->last = 0; 485 } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) { 486 /* Workaround Toshiba laptop multiple keypress */ 487 value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2; 488 } else { 489 value = 1; 490 atkbd->last = code; 491 atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2; 492 } 493 494 input_event(dev, EV_KEY, keycode, value); 495 input_sync(dev); 496 497 if (value && test_bit(code, atkbd->force_release_mask)) { 498 input_report_key(dev, keycode, 0); 499 input_sync(dev); 500 } 501 } 502 503 if (atkbd->scroll) { 504 if (click != -1) 505 input_report_key(dev, BTN_MIDDLE, click); 506 input_report_rel(dev, REL_WHEEL, scroll); 507 input_report_rel(dev, REL_HWHEEL, hscroll); 508 input_sync(dev); 509 } 510 511 atkbd->release = 0; 512 out: 513 return IRQ_HANDLED; 514 } 515 516 static int atkbd_set_repeat_rate(struct atkbd *atkbd) 517 { 518 const short period[32] = 519 { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125, 520 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 }; 521 const short delay[4] = 522 { 250, 500, 750, 1000 }; 523 524 struct input_dev *dev = atkbd->dev; 525 unsigned char param; 526 int i = 0, j = 0; 527 528 while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD]) 529 i++; 530 dev->rep[REP_PERIOD] = period[i]; 531 532 while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY]) 533 j++; 534 dev->rep[REP_DELAY] = delay[j]; 535 536 param = i | (j << 5); 537 return ps2_command(&atkbd->ps2dev, ¶m, ATKBD_CMD_SETREP); 538 } 539 540 static int atkbd_set_leds(struct atkbd *atkbd) 541 { 542 struct input_dev *dev = atkbd->dev; 543 unsigned char param[2]; 544 545 param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0) 546 | (test_bit(LED_NUML, dev->led) ? 2 : 0) 547 | (test_bit(LED_CAPSL, dev->led) ? 4 : 0); 548 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS)) 549 return -1; 550 551 if (atkbd->extra) { 552 param[0] = 0; 553 param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0) 554 | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0) 555 | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0) 556 | (test_bit(LED_MISC, dev->led) ? 0x10 : 0) 557 | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0); 558 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS)) 559 return -1; 560 } 561 562 return 0; 563 } 564 565 /* 566 * atkbd_event_work() is used to complete processing of events that 567 * can not be processed by input_event() which is often called from 568 * interrupt context. 569 */ 570 571 static void atkbd_event_work(struct work_struct *work) 572 { 573 struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work); 574 575 mutex_lock(&atkbd->event_mutex); 576 577 if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask)) 578 atkbd_set_leds(atkbd); 579 580 if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask)) 581 atkbd_set_repeat_rate(atkbd); 582 583 mutex_unlock(&atkbd->event_mutex); 584 } 585 586 /* 587 * Schedule switch for execution. We need to throttle requests, 588 * otherwise keyboard may become unresponsive. 589 */ 590 static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit) 591 { 592 unsigned long delay = msecs_to_jiffies(50); 593 594 if (time_after(jiffies, atkbd->event_jiffies + delay)) 595 delay = 0; 596 597 atkbd->event_jiffies = jiffies; 598 set_bit(event_bit, &atkbd->event_mask); 599 wmb(); 600 schedule_delayed_work(&atkbd->event_work, delay); 601 } 602 603 /* 604 * Event callback from the input module. Events that change the state of 605 * the hardware are processed here. If action can not be performed in 606 * interrupt context it is offloaded to atkbd_event_work. 607 */ 608 609 static int atkbd_event(struct input_dev *dev, 610 unsigned int type, unsigned int code, int value) 611 { 612 struct atkbd *atkbd = input_get_drvdata(dev); 613 614 if (!atkbd->write) 615 return -1; 616 617 switch (type) { 618 619 case EV_LED: 620 atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT); 621 return 0; 622 623 case EV_REP: 624 if (!atkbd->softrepeat) 625 atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT); 626 return 0; 627 } 628 629 return -1; 630 } 631 632 /* 633 * atkbd_enable() signals that interrupt handler is allowed to 634 * generate input events. 635 */ 636 637 static inline void atkbd_enable(struct atkbd *atkbd) 638 { 639 serio_pause_rx(atkbd->ps2dev.serio); 640 atkbd->enabled = 1; 641 serio_continue_rx(atkbd->ps2dev.serio); 642 } 643 644 /* 645 * atkbd_disable() tells input handler that all incoming data except 646 * for ACKs and command response should be dropped. 647 */ 648 649 static inline void atkbd_disable(struct atkbd *atkbd) 650 { 651 serio_pause_rx(atkbd->ps2dev.serio); 652 atkbd->enabled = 0; 653 serio_continue_rx(atkbd->ps2dev.serio); 654 } 655 656 /* 657 * atkbd_probe() probes for an AT keyboard on a serio port. 658 */ 659 660 static int atkbd_probe(struct atkbd *atkbd) 661 { 662 struct ps2dev *ps2dev = &atkbd->ps2dev; 663 unsigned char param[2]; 664 665 /* 666 * Some systems, where the bit-twiddling when testing the io-lines of the 667 * controller may confuse the keyboard need a full reset of the keyboard. On 668 * these systems the BIOS also usually doesn't do it for us. 669 */ 670 671 if (atkbd_reset) 672 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT)) 673 printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", ps2dev->serio->phys); 674 675 /* 676 * Then we check the keyboard ID. We should get 0xab83 under normal conditions. 677 * Some keyboards report different values, but the first byte is always 0xab or 678 * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this 679 * should make sure we don't try to set the LEDs on it. 680 */ 681 682 param[0] = param[1] = 0xa5; /* initialize with invalid values */ 683 if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) { 684 685 /* 686 * If the get ID command failed, we check if we can at least set the LEDs on 687 * the keyboard. This should work on every keyboard out there. It also turns 688 * the LEDs off, which we want anyway. 689 */ 690 param[0] = 0; 691 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS)) 692 return -1; 693 atkbd->id = 0xabba; 694 return 0; 695 } 696 697 if (!ps2_is_keyboard_id(param[0])) 698 return -1; 699 700 atkbd->id = (param[0] << 8) | param[1]; 701 702 if (atkbd->id == 0xaca1 && atkbd->translated) { 703 printk(KERN_ERR "atkbd.c: NCD terminal keyboards are only supported on non-translating\n"); 704 printk(KERN_ERR "atkbd.c: controllers. Use i8042.direct=1 to disable translation.\n"); 705 return -1; 706 } 707 708 return 0; 709 } 710 711 /* 712 * atkbd_select_set checks if a keyboard has a working Set 3 support, and 713 * sets it into that. Unfortunately there are keyboards that can be switched 714 * to Set 3, but don't work well in that (BTC Multimedia ...) 715 */ 716 717 static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra) 718 { 719 struct ps2dev *ps2dev = &atkbd->ps2dev; 720 unsigned char param[2]; 721 722 atkbd->extra = 0; 723 /* 724 * For known special keyboards we can go ahead and set the correct set. 725 * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and 726 * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards. 727 */ 728 729 if (atkbd->translated) 730 return 2; 731 732 if (atkbd->id == 0xaca1) { 733 param[0] = 3; 734 ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET); 735 return 3; 736 } 737 738 if (allow_extra) { 739 param[0] = 0x71; 740 if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) { 741 atkbd->extra = 1; 742 return 2; 743 } 744 } 745 746 if (target_set != 3) 747 return 2; 748 749 if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) { 750 atkbd->id = param[0] << 8 | param[1]; 751 return 2; 752 } 753 754 param[0] = 3; 755 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET)) 756 return 2; 757 758 param[0] = 0; 759 if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET)) 760 return 2; 761 762 if (param[0] != 3) { 763 param[0] = 2; 764 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET)) 765 return 2; 766 } 767 768 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR); 769 770 return 3; 771 } 772 773 static int atkbd_activate(struct atkbd *atkbd) 774 { 775 struct ps2dev *ps2dev = &atkbd->ps2dev; 776 777 /* 778 * Enable the keyboard to receive keystrokes. 779 */ 780 781 if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) { 782 printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n", 783 ps2dev->serio->phys); 784 return -1; 785 } 786 787 return 0; 788 } 789 790 /* 791 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a 792 * reboot. 793 */ 794 795 static void atkbd_cleanup(struct serio *serio) 796 { 797 struct atkbd *atkbd = serio_get_drvdata(serio); 798 799 atkbd_disable(atkbd); 800 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_BAT); 801 } 802 803 804 /* 805 * atkbd_disconnect() closes and frees. 806 */ 807 808 static void atkbd_disconnect(struct serio *serio) 809 { 810 struct atkbd *atkbd = serio_get_drvdata(serio); 811 812 atkbd_disable(atkbd); 813 814 /* make sure we don't have a command in flight */ 815 cancel_delayed_work_sync(&atkbd->event_work); 816 817 sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group); 818 input_unregister_device(atkbd->dev); 819 serio_close(serio); 820 serio_set_drvdata(serio, NULL); 821 kfree(atkbd); 822 } 823 824 /* 825 * generate release events for the keycodes given in data 826 */ 827 static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd, 828 const void *data) 829 { 830 const unsigned int *keys = data; 831 unsigned int i; 832 833 if (atkbd->set == 2) 834 for (i = 0; keys[i] != -1U; i++) 835 __set_bit(keys[i], atkbd->force_release_mask); 836 } 837 838 /* 839 * Most special keys (Fn+F?) on Dell laptops do not generate release 840 * events so we have to do it ourselves. 841 */ 842 static unsigned int atkbd_dell_laptop_forced_release_keys[] = { 843 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U 844 }; 845 846 /* 847 * Perform fixup for HP system that doesn't generate release 848 * for its video switch 849 */ 850 static unsigned int atkbd_hp_forced_release_keys[] = { 851 0x94, -1U 852 }; 853 854 /* 855 * Inventec system with broken key release on volume keys 856 */ 857 static unsigned int atkbd_inventec_forced_release_keys[] = { 858 0xae, 0xb0, -1U 859 }; 860 861 /* 862 * Perform fixup for HP Pavilion ZV6100 laptop that doesn't generate release 863 * for its volume buttons 864 */ 865 static unsigned int atkbd_hp_zv6100_forced_release_keys[] = { 866 0xae, 0xb0, -1U 867 }; 868 869 /* 870 * Perform fixup for HP (Compaq) Presario R4000 R4100 R4200 that don't generate 871 * release for their volume buttons 872 */ 873 static unsigned int atkbd_hp_r4000_forced_release_keys[] = { 874 0xae, 0xb0, -1U 875 }; 876 877 /* 878 * Samsung NC10,NC20 with Fn+F? key release not working 879 */ 880 static unsigned int atkbd_samsung_forced_release_keys[] = { 881 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U 882 }; 883 884 /* 885 * The volume up and volume down special keys on a Fujitsu Amilo PA 1510 laptop 886 * do not generate release events so we have to do it ourselves. 887 */ 888 static unsigned int atkbd_amilo_pa1510_forced_release_keys[] = { 889 0xb0, 0xae, -1U 890 }; 891 892 /* 893 * Amilo Pi 3525 key release for Fn+Volume keys not working 894 */ 895 static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = { 896 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U 897 }; 898 899 /* 900 * Amilo Xi 3650 key release for light touch bar not working 901 */ 902 static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = { 903 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U 904 }; 905 906 /* 907 * Soltech TA12 system with broken key release on volume keys and mute key 908 */ 909 static unsigned int atkdb_soltech_ta12_forced_release_keys[] = { 910 0xa0, 0xae, 0xb0, -1U 911 }; 912 913 /* 914 * atkbd_set_keycode_table() initializes keyboard's keycode table 915 * according to the selected scancode set 916 */ 917 918 static void atkbd_set_keycode_table(struct atkbd *atkbd) 919 { 920 unsigned int scancode; 921 int i, j; 922 923 memset(atkbd->keycode, 0, sizeof(atkbd->keycode)); 924 bitmap_zero(atkbd->force_release_mask, ATKBD_KEYMAP_SIZE); 925 926 if (atkbd->translated) { 927 for (i = 0; i < 128; i++) { 928 scancode = atkbd_unxlate_table[i]; 929 atkbd->keycode[i] = atkbd_set2_keycode[scancode]; 930 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80]; 931 if (atkbd->scroll) 932 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++) 933 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2) 934 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode; 935 } 936 } else if (atkbd->set == 3) { 937 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode)); 938 } else { 939 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode)); 940 941 if (atkbd->scroll) 942 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) { 943 scancode = atkbd_scroll_keys[i].set2; 944 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode; 945 } 946 } 947 948 /* 949 * HANGEUL and HANJA keys do not send release events so we need to 950 * generate such events ourselves 951 */ 952 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL); 953 atkbd->keycode[scancode] = KEY_HANGEUL; 954 __set_bit(scancode, atkbd->force_release_mask); 955 956 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA); 957 atkbd->keycode[scancode] = KEY_HANJA; 958 __set_bit(scancode, atkbd->force_release_mask); 959 960 /* 961 * Perform additional fixups 962 */ 963 if (atkbd_platform_fixup) 964 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data); 965 } 966 967 /* 968 * atkbd_set_device_attrs() sets up keyboard's input device structure 969 */ 970 971 static void atkbd_set_device_attrs(struct atkbd *atkbd) 972 { 973 struct input_dev *input_dev = atkbd->dev; 974 int i; 975 976 if (atkbd->extra) 977 snprintf(atkbd->name, sizeof(atkbd->name), 978 "AT Set 2 Extra keyboard"); 979 else 980 snprintf(atkbd->name, sizeof(atkbd->name), 981 "AT %s Set %d keyboard", 982 atkbd->translated ? "Translated" : "Raw", atkbd->set); 983 984 snprintf(atkbd->phys, sizeof(atkbd->phys), 985 "%s/input0", atkbd->ps2dev.serio->phys); 986 987 input_dev->name = atkbd->name; 988 input_dev->phys = atkbd->phys; 989 input_dev->id.bustype = BUS_I8042; 990 input_dev->id.vendor = 0x0001; 991 input_dev->id.product = atkbd->translated ? 1 : atkbd->set; 992 input_dev->id.version = atkbd->id; 993 input_dev->event = atkbd_event; 994 input_dev->dev.parent = &atkbd->ps2dev.serio->dev; 995 996 input_set_drvdata(input_dev, atkbd); 997 998 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | 999 BIT_MASK(EV_MSC); 1000 1001 if (atkbd->write) { 1002 input_dev->evbit[0] |= BIT_MASK(EV_LED); 1003 input_dev->ledbit[0] = BIT_MASK(LED_NUML) | 1004 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL); 1005 } 1006 1007 if (atkbd->extra) 1008 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) | 1009 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) | 1010 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC); 1011 1012 if (!atkbd->softrepeat) { 1013 input_dev->rep[REP_DELAY] = 250; 1014 input_dev->rep[REP_PERIOD] = 33; 1015 } 1016 1017 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) : 1018 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN); 1019 1020 if (atkbd->scroll) { 1021 input_dev->evbit[0] |= BIT_MASK(EV_REL); 1022 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) | 1023 BIT_MASK(REL_HWHEEL); 1024 __set_bit(BTN_MIDDLE, input_dev->keybit); 1025 } 1026 1027 input_dev->keycode = atkbd->keycode; 1028 input_dev->keycodesize = sizeof(unsigned short); 1029 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode); 1030 1031 for (i = 0; i < ATKBD_KEYMAP_SIZE; i++) 1032 if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL) 1033 __set_bit(atkbd->keycode[i], input_dev->keybit); 1034 } 1035 1036 /* 1037 * atkbd_connect() is called when the serio module finds an interface 1038 * that isn't handled yet by an appropriate device driver. We check if 1039 * there is an AT keyboard out there and if yes, we register ourselves 1040 * to the input module. 1041 */ 1042 1043 static int atkbd_connect(struct serio *serio, struct serio_driver *drv) 1044 { 1045 struct atkbd *atkbd; 1046 struct input_dev *dev; 1047 int err = -ENOMEM; 1048 1049 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL); 1050 dev = input_allocate_device(); 1051 if (!atkbd || !dev) 1052 goto fail1; 1053 1054 atkbd->dev = dev; 1055 ps2_init(&atkbd->ps2dev, serio); 1056 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work); 1057 mutex_init(&atkbd->event_mutex); 1058 1059 switch (serio->id.type) { 1060 1061 case SERIO_8042_XL: 1062 atkbd->translated = 1; 1063 case SERIO_8042: 1064 if (serio->write) 1065 atkbd->write = 1; 1066 break; 1067 } 1068 1069 atkbd->softraw = atkbd_softraw; 1070 atkbd->softrepeat = atkbd_softrepeat; 1071 atkbd->scroll = atkbd_scroll; 1072 1073 if (atkbd->softrepeat) 1074 atkbd->softraw = 1; 1075 1076 serio_set_drvdata(serio, atkbd); 1077 1078 err = serio_open(serio, drv); 1079 if (err) 1080 goto fail2; 1081 1082 if (atkbd->write) { 1083 1084 if (atkbd_probe(atkbd)) { 1085 err = -ENODEV; 1086 goto fail3; 1087 } 1088 1089 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra); 1090 atkbd_activate(atkbd); 1091 1092 } else { 1093 atkbd->set = 2; 1094 atkbd->id = 0xab00; 1095 } 1096 1097 atkbd_set_keycode_table(atkbd); 1098 atkbd_set_device_attrs(atkbd); 1099 1100 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group); 1101 if (err) 1102 goto fail3; 1103 1104 atkbd_enable(atkbd); 1105 1106 err = input_register_device(atkbd->dev); 1107 if (err) 1108 goto fail4; 1109 1110 return 0; 1111 1112 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group); 1113 fail3: serio_close(serio); 1114 fail2: serio_set_drvdata(serio, NULL); 1115 fail1: input_free_device(dev); 1116 kfree(atkbd); 1117 return err; 1118 } 1119 1120 /* 1121 * atkbd_reconnect() tries to restore keyboard into a sane state and is 1122 * most likely called on resume. 1123 */ 1124 1125 static int atkbd_reconnect(struct serio *serio) 1126 { 1127 struct atkbd *atkbd = serio_get_drvdata(serio); 1128 struct serio_driver *drv = serio->drv; 1129 1130 if (!atkbd || !drv) { 1131 printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n"); 1132 return -1; 1133 } 1134 1135 atkbd_disable(atkbd); 1136 1137 if (atkbd->write) { 1138 if (atkbd_probe(atkbd)) 1139 return -1; 1140 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra)) 1141 return -1; 1142 1143 atkbd_activate(atkbd); 1144 } 1145 1146 atkbd_enable(atkbd); 1147 1148 return 0; 1149 } 1150 1151 static struct serio_device_id atkbd_serio_ids[] = { 1152 { 1153 .type = SERIO_8042, 1154 .proto = SERIO_ANY, 1155 .id = SERIO_ANY, 1156 .extra = SERIO_ANY, 1157 }, 1158 { 1159 .type = SERIO_8042_XL, 1160 .proto = SERIO_ANY, 1161 .id = SERIO_ANY, 1162 .extra = SERIO_ANY, 1163 }, 1164 { 1165 .type = SERIO_RS232, 1166 .proto = SERIO_PS2SER, 1167 .id = SERIO_ANY, 1168 .extra = SERIO_ANY, 1169 }, 1170 { 0 } 1171 }; 1172 1173 MODULE_DEVICE_TABLE(serio, atkbd_serio_ids); 1174 1175 static struct serio_driver atkbd_drv = { 1176 .driver = { 1177 .name = "atkbd", 1178 }, 1179 .description = DRIVER_DESC, 1180 .id_table = atkbd_serio_ids, 1181 .interrupt = atkbd_interrupt, 1182 .connect = atkbd_connect, 1183 .reconnect = atkbd_reconnect, 1184 .disconnect = atkbd_disconnect, 1185 .cleanup = atkbd_cleanup, 1186 }; 1187 1188 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf, 1189 ssize_t (*handler)(struct atkbd *, char *)) 1190 { 1191 struct serio *serio = to_serio_port(dev); 1192 int retval; 1193 1194 retval = serio_pin_driver(serio); 1195 if (retval) 1196 return retval; 1197 1198 if (serio->drv != &atkbd_drv) { 1199 retval = -ENODEV; 1200 goto out; 1201 } 1202 1203 retval = handler((struct atkbd *)serio_get_drvdata(serio), buf); 1204 1205 out: 1206 serio_unpin_driver(serio); 1207 return retval; 1208 } 1209 1210 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count, 1211 ssize_t (*handler)(struct atkbd *, const char *, size_t)) 1212 { 1213 struct serio *serio = to_serio_port(dev); 1214 struct atkbd *atkbd; 1215 int retval; 1216 1217 retval = serio_pin_driver(serio); 1218 if (retval) 1219 return retval; 1220 1221 if (serio->drv != &atkbd_drv) { 1222 retval = -ENODEV; 1223 goto out; 1224 } 1225 1226 atkbd = serio_get_drvdata(serio); 1227 atkbd_disable(atkbd); 1228 retval = handler(atkbd, buf, count); 1229 atkbd_enable(atkbd); 1230 1231 out: 1232 serio_unpin_driver(serio); 1233 return retval; 1234 } 1235 1236 static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf) 1237 { 1238 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0); 1239 } 1240 1241 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count) 1242 { 1243 struct input_dev *old_dev, *new_dev; 1244 unsigned long value; 1245 int err; 1246 unsigned char old_extra, old_set; 1247 1248 if (!atkbd->write) 1249 return -EIO; 1250 1251 if (strict_strtoul(buf, 10, &value) || value > 1) 1252 return -EINVAL; 1253 1254 if (atkbd->extra != value) { 1255 /* 1256 * Since device's properties will change we need to 1257 * unregister old device. But allocate and register 1258 * new one first to make sure we have it. 1259 */ 1260 old_dev = atkbd->dev; 1261 old_extra = atkbd->extra; 1262 old_set = atkbd->set; 1263 1264 new_dev = input_allocate_device(); 1265 if (!new_dev) 1266 return -ENOMEM; 1267 1268 atkbd->dev = new_dev; 1269 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value); 1270 atkbd_activate(atkbd); 1271 atkbd_set_keycode_table(atkbd); 1272 atkbd_set_device_attrs(atkbd); 1273 1274 err = input_register_device(atkbd->dev); 1275 if (err) { 1276 input_free_device(new_dev); 1277 1278 atkbd->dev = old_dev; 1279 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra); 1280 atkbd_set_keycode_table(atkbd); 1281 atkbd_set_device_attrs(atkbd); 1282 1283 return err; 1284 } 1285 input_unregister_device(old_dev); 1286 1287 } 1288 return count; 1289 } 1290 1291 static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf) 1292 { 1293 size_t len = bitmap_scnlistprintf(buf, PAGE_SIZE - 2, 1294 atkbd->force_release_mask, ATKBD_KEYMAP_SIZE); 1295 1296 buf[len++] = '\n'; 1297 buf[len] = '\0'; 1298 1299 return len; 1300 } 1301 1302 static ssize_t atkbd_set_force_release(struct atkbd *atkbd, 1303 const char *buf, size_t count) 1304 { 1305 /* 64 bytes on stack should be acceptable */ 1306 DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE); 1307 int err; 1308 1309 err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE); 1310 if (err) 1311 return err; 1312 1313 memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask)); 1314 return count; 1315 } 1316 1317 1318 static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf) 1319 { 1320 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0); 1321 } 1322 1323 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count) 1324 { 1325 struct input_dev *old_dev, *new_dev; 1326 unsigned long value; 1327 int err; 1328 unsigned char old_scroll; 1329 1330 if (strict_strtoul(buf, 10, &value) || value > 1) 1331 return -EINVAL; 1332 1333 if (atkbd->scroll != value) { 1334 old_dev = atkbd->dev; 1335 old_scroll = atkbd->scroll; 1336 1337 new_dev = input_allocate_device(); 1338 if (!new_dev) 1339 return -ENOMEM; 1340 1341 atkbd->dev = new_dev; 1342 atkbd->scroll = value; 1343 atkbd_set_keycode_table(atkbd); 1344 atkbd_set_device_attrs(atkbd); 1345 1346 err = input_register_device(atkbd->dev); 1347 if (err) { 1348 input_free_device(new_dev); 1349 1350 atkbd->scroll = old_scroll; 1351 atkbd->dev = old_dev; 1352 atkbd_set_keycode_table(atkbd); 1353 atkbd_set_device_attrs(atkbd); 1354 1355 return err; 1356 } 1357 input_unregister_device(old_dev); 1358 } 1359 return count; 1360 } 1361 1362 static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf) 1363 { 1364 return sprintf(buf, "%d\n", atkbd->set); 1365 } 1366 1367 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count) 1368 { 1369 struct input_dev *old_dev, *new_dev; 1370 unsigned long value; 1371 int err; 1372 unsigned char old_set, old_extra; 1373 1374 if (!atkbd->write) 1375 return -EIO; 1376 1377 if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3)) 1378 return -EINVAL; 1379 1380 if (atkbd->set != value) { 1381 old_dev = atkbd->dev; 1382 old_extra = atkbd->extra; 1383 old_set = atkbd->set; 1384 1385 new_dev = input_allocate_device(); 1386 if (!new_dev) 1387 return -ENOMEM; 1388 1389 atkbd->dev = new_dev; 1390 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra); 1391 atkbd_activate(atkbd); 1392 atkbd_set_keycode_table(atkbd); 1393 atkbd_set_device_attrs(atkbd); 1394 1395 err = input_register_device(atkbd->dev); 1396 if (err) { 1397 input_free_device(new_dev); 1398 1399 atkbd->dev = old_dev; 1400 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra); 1401 atkbd_set_keycode_table(atkbd); 1402 atkbd_set_device_attrs(atkbd); 1403 1404 return err; 1405 } 1406 input_unregister_device(old_dev); 1407 } 1408 return count; 1409 } 1410 1411 static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf) 1412 { 1413 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0); 1414 } 1415 1416 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count) 1417 { 1418 struct input_dev *old_dev, *new_dev; 1419 unsigned long value; 1420 int err; 1421 unsigned char old_softrepeat, old_softraw; 1422 1423 if (!atkbd->write) 1424 return -EIO; 1425 1426 if (strict_strtoul(buf, 10, &value) || value > 1) 1427 return -EINVAL; 1428 1429 if (atkbd->softrepeat != value) { 1430 old_dev = atkbd->dev; 1431 old_softrepeat = atkbd->softrepeat; 1432 old_softraw = atkbd->softraw; 1433 1434 new_dev = input_allocate_device(); 1435 if (!new_dev) 1436 return -ENOMEM; 1437 1438 atkbd->dev = new_dev; 1439 atkbd->softrepeat = value; 1440 if (atkbd->softrepeat) 1441 atkbd->softraw = 1; 1442 atkbd_set_device_attrs(atkbd); 1443 1444 err = input_register_device(atkbd->dev); 1445 if (err) { 1446 input_free_device(new_dev); 1447 1448 atkbd->dev = old_dev; 1449 atkbd->softrepeat = old_softrepeat; 1450 atkbd->softraw = old_softraw; 1451 atkbd_set_device_attrs(atkbd); 1452 1453 return err; 1454 } 1455 input_unregister_device(old_dev); 1456 } 1457 return count; 1458 } 1459 1460 1461 static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf) 1462 { 1463 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0); 1464 } 1465 1466 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count) 1467 { 1468 struct input_dev *old_dev, *new_dev; 1469 unsigned long value; 1470 int err; 1471 unsigned char old_softraw; 1472 1473 if (strict_strtoul(buf, 10, &value) || value > 1) 1474 return -EINVAL; 1475 1476 if (atkbd->softraw != value) { 1477 old_dev = atkbd->dev; 1478 old_softraw = atkbd->softraw; 1479 1480 new_dev = input_allocate_device(); 1481 if (!new_dev) 1482 return -ENOMEM; 1483 1484 atkbd->dev = new_dev; 1485 atkbd->softraw = value; 1486 atkbd_set_device_attrs(atkbd); 1487 1488 err = input_register_device(atkbd->dev); 1489 if (err) { 1490 input_free_device(new_dev); 1491 1492 atkbd->dev = old_dev; 1493 atkbd->softraw = old_softraw; 1494 atkbd_set_device_attrs(atkbd); 1495 1496 return err; 1497 } 1498 input_unregister_device(old_dev); 1499 } 1500 return count; 1501 } 1502 1503 static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf) 1504 { 1505 return sprintf(buf, "%lu\n", atkbd->err_count); 1506 } 1507 1508 static int __init atkbd_setup_forced_release(const struct dmi_system_id *id) 1509 { 1510 atkbd_platform_fixup = atkbd_apply_forced_release_keylist; 1511 atkbd_platform_fixup_data = id->driver_data; 1512 1513 return 0; 1514 } 1515 1516 static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = { 1517 { 1518 .ident = "Dell Laptop", 1519 .matches = { 1520 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 1521 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */ 1522 }, 1523 .callback = atkbd_setup_forced_release, 1524 .driver_data = atkbd_dell_laptop_forced_release_keys, 1525 }, 1526 { 1527 .ident = "Dell Laptop", 1528 .matches = { 1529 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"), 1530 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */ 1531 }, 1532 .callback = atkbd_setup_forced_release, 1533 .driver_data = atkbd_dell_laptop_forced_release_keys, 1534 }, 1535 { 1536 .ident = "HP 2133", 1537 .matches = { 1538 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1539 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"), 1540 }, 1541 .callback = atkbd_setup_forced_release, 1542 .driver_data = atkbd_hp_forced_release_keys, 1543 }, 1544 { 1545 .ident = "HP Pavilion ZV6100", 1546 .matches = { 1547 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1548 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"), 1549 }, 1550 .callback = atkbd_setup_forced_release, 1551 .driver_data = atkbd_hp_zv6100_forced_release_keys, 1552 }, 1553 { 1554 .ident = "HP Presario R4000", 1555 .matches = { 1556 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1557 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"), 1558 }, 1559 .callback = atkbd_setup_forced_release, 1560 .driver_data = atkbd_hp_r4000_forced_release_keys, 1561 }, 1562 { 1563 .ident = "HP Presario R4100", 1564 .matches = { 1565 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1566 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"), 1567 }, 1568 .callback = atkbd_setup_forced_release, 1569 .driver_data = atkbd_hp_r4000_forced_release_keys, 1570 }, 1571 { 1572 .ident = "HP Presario R4200", 1573 .matches = { 1574 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1575 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"), 1576 }, 1577 .callback = atkbd_setup_forced_release, 1578 .driver_data = atkbd_hp_r4000_forced_release_keys, 1579 }, 1580 { 1581 .ident = "Inventec Symphony", 1582 .matches = { 1583 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"), 1584 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"), 1585 }, 1586 .callback = atkbd_setup_forced_release, 1587 .driver_data = atkbd_inventec_forced_release_keys, 1588 }, 1589 { 1590 .ident = "Samsung NC10", 1591 .matches = { 1592 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), 1593 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"), 1594 }, 1595 .callback = atkbd_setup_forced_release, 1596 .driver_data = atkbd_samsung_forced_release_keys, 1597 }, 1598 { 1599 .ident = "Samsung NC20", 1600 .matches = { 1601 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), 1602 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"), 1603 }, 1604 .callback = atkbd_setup_forced_release, 1605 .driver_data = atkbd_samsung_forced_release_keys, 1606 }, 1607 { 1608 .ident = "Samsung SQ45S70S", 1609 .matches = { 1610 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), 1611 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"), 1612 }, 1613 .callback = atkbd_setup_forced_release, 1614 .driver_data = atkbd_samsung_forced_release_keys, 1615 }, 1616 { 1617 .ident = "Fujitsu Amilo PA 1510", 1618 .matches = { 1619 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 1620 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"), 1621 }, 1622 .callback = atkbd_setup_forced_release, 1623 .driver_data = atkbd_amilo_pa1510_forced_release_keys, 1624 }, 1625 { 1626 .ident = "Fujitsu Amilo Pi 3525", 1627 .matches = { 1628 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 1629 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"), 1630 }, 1631 .callback = atkbd_setup_forced_release, 1632 .driver_data = atkbd_amilo_pi3525_forced_release_keys, 1633 }, 1634 { 1635 .ident = "Fujitsu Amilo Xi 3650", 1636 .matches = { 1637 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 1638 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"), 1639 }, 1640 .callback = atkbd_setup_forced_release, 1641 .driver_data = atkbd_amilo_xi3650_forced_release_keys, 1642 }, 1643 { 1644 .ident = "Soltech Corporation TA12", 1645 .matches = { 1646 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"), 1647 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"), 1648 }, 1649 .callback = atkbd_setup_forced_release, 1650 .driver_data = atkdb_soltech_ta12_forced_release_keys, 1651 }, 1652 { } 1653 }; 1654 1655 static int __init atkbd_init(void) 1656 { 1657 dmi_check_system(atkbd_dmi_quirk_table); 1658 1659 return serio_register_driver(&atkbd_drv); 1660 } 1661 1662 static void __exit atkbd_exit(void) 1663 { 1664 serio_unregister_driver(&atkbd_drv); 1665 } 1666 1667 module_init(atkbd_init); 1668 module_exit(atkbd_exit); 1669