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