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 Pi 3525 key release for Fn+Volume keys not working 899 */ 900 static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = { 901 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U 902 }; 903 904 /* 905 * Amilo Xi 3650 key release for light touch bar not working 906 */ 907 static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = { 908 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U 909 }; 910 911 /* 912 * Soltech TA12 system with broken key release on volume keys and mute key 913 */ 914 static unsigned int atkdb_soltech_ta12_forced_release_keys[] = { 915 0xa0, 0xae, 0xb0, -1U 916 }; 917 918 /* 919 * atkbd_set_keycode_table() initializes keyboard's keycode table 920 * according to the selected scancode set 921 */ 922 923 static void atkbd_set_keycode_table(struct atkbd *atkbd) 924 { 925 unsigned int scancode; 926 int i, j; 927 928 memset(atkbd->keycode, 0, sizeof(atkbd->keycode)); 929 bitmap_zero(atkbd->force_release_mask, 512); 930 931 if (atkbd->translated) { 932 for (i = 0; i < 128; i++) { 933 scancode = atkbd_unxlate_table[i]; 934 atkbd->keycode[i] = atkbd_set2_keycode[scancode]; 935 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80]; 936 if (atkbd->scroll) 937 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++) 938 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2) 939 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode; 940 } 941 } else if (atkbd->set == 3) { 942 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode)); 943 } else { 944 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode)); 945 946 if (atkbd->scroll) 947 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) { 948 scancode = atkbd_scroll_keys[i].set2; 949 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode; 950 } 951 } 952 953 /* 954 * HANGEUL and HANJA keys do not send release events so we need to 955 * generate such events ourselves 956 */ 957 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL); 958 atkbd->keycode[scancode] = KEY_HANGEUL; 959 __set_bit(scancode, atkbd->force_release_mask); 960 961 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA); 962 atkbd->keycode[scancode] = KEY_HANJA; 963 __set_bit(scancode, atkbd->force_release_mask); 964 965 /* 966 * Perform additional fixups 967 */ 968 if (atkbd_platform_fixup) 969 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data); 970 } 971 972 /* 973 * atkbd_set_device_attrs() sets up keyboard's input device structure 974 */ 975 976 static void atkbd_set_device_attrs(struct atkbd *atkbd) 977 { 978 struct input_dev *input_dev = atkbd->dev; 979 int i; 980 981 if (atkbd->extra) 982 snprintf(atkbd->name, sizeof(atkbd->name), 983 "AT Set 2 Extra keyboard"); 984 else 985 snprintf(atkbd->name, sizeof(atkbd->name), 986 "AT %s Set %d keyboard", 987 atkbd->translated ? "Translated" : "Raw", atkbd->set); 988 989 snprintf(atkbd->phys, sizeof(atkbd->phys), 990 "%s/input0", atkbd->ps2dev.serio->phys); 991 992 input_dev->name = atkbd->name; 993 input_dev->phys = atkbd->phys; 994 input_dev->id.bustype = BUS_I8042; 995 input_dev->id.vendor = 0x0001; 996 input_dev->id.product = atkbd->translated ? 1 : atkbd->set; 997 input_dev->id.version = atkbd->id; 998 input_dev->event = atkbd_event; 999 input_dev->dev.parent = &atkbd->ps2dev.serio->dev; 1000 1001 input_set_drvdata(input_dev, atkbd); 1002 1003 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | 1004 BIT_MASK(EV_MSC); 1005 1006 if (atkbd->write) { 1007 input_dev->evbit[0] |= BIT_MASK(EV_LED); 1008 input_dev->ledbit[0] = BIT_MASK(LED_NUML) | 1009 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL); 1010 } 1011 1012 if (atkbd->extra) 1013 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) | 1014 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) | 1015 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC); 1016 1017 if (!atkbd->softrepeat) { 1018 input_dev->rep[REP_DELAY] = 250; 1019 input_dev->rep[REP_PERIOD] = 33; 1020 } 1021 1022 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) : 1023 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN); 1024 1025 if (atkbd->scroll) { 1026 input_dev->evbit[0] |= BIT_MASK(EV_REL); 1027 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) | 1028 BIT_MASK(REL_HWHEEL); 1029 __set_bit(BTN_MIDDLE, input_dev->keybit); 1030 } 1031 1032 input_dev->keycode = atkbd->keycode; 1033 input_dev->keycodesize = sizeof(unsigned short); 1034 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode); 1035 1036 for (i = 0; i < 512; i++) 1037 if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL) 1038 __set_bit(atkbd->keycode[i], input_dev->keybit); 1039 } 1040 1041 /* 1042 * atkbd_connect() is called when the serio module finds an interface 1043 * that isn't handled yet by an appropriate device driver. We check if 1044 * there is an AT keyboard out there and if yes, we register ourselves 1045 * to the input module. 1046 */ 1047 1048 static int atkbd_connect(struct serio *serio, struct serio_driver *drv) 1049 { 1050 struct atkbd *atkbd; 1051 struct input_dev *dev; 1052 int err = -ENOMEM; 1053 1054 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL); 1055 dev = input_allocate_device(); 1056 if (!atkbd || !dev) 1057 goto fail1; 1058 1059 atkbd->dev = dev; 1060 ps2_init(&atkbd->ps2dev, serio); 1061 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work); 1062 mutex_init(&atkbd->event_mutex); 1063 1064 switch (serio->id.type) { 1065 1066 case SERIO_8042_XL: 1067 atkbd->translated = 1; 1068 case SERIO_8042: 1069 if (serio->write) 1070 atkbd->write = 1; 1071 break; 1072 } 1073 1074 atkbd->softraw = atkbd_softraw; 1075 atkbd->softrepeat = atkbd_softrepeat; 1076 atkbd->scroll = atkbd_scroll; 1077 1078 if (atkbd->softrepeat) 1079 atkbd->softraw = 1; 1080 1081 serio_set_drvdata(serio, atkbd); 1082 1083 err = serio_open(serio, drv); 1084 if (err) 1085 goto fail2; 1086 1087 if (atkbd->write) { 1088 1089 if (atkbd_probe(atkbd)) { 1090 err = -ENODEV; 1091 goto fail3; 1092 } 1093 1094 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra); 1095 atkbd_activate(atkbd); 1096 1097 } else { 1098 atkbd->set = 2; 1099 atkbd->id = 0xab00; 1100 } 1101 1102 atkbd_set_keycode_table(atkbd); 1103 atkbd_set_device_attrs(atkbd); 1104 1105 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group); 1106 if (err) 1107 goto fail3; 1108 1109 atkbd_enable(atkbd); 1110 1111 err = input_register_device(atkbd->dev); 1112 if (err) 1113 goto fail4; 1114 1115 return 0; 1116 1117 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group); 1118 fail3: serio_close(serio); 1119 fail2: serio_set_drvdata(serio, NULL); 1120 fail1: input_free_device(dev); 1121 kfree(atkbd); 1122 return err; 1123 } 1124 1125 /* 1126 * atkbd_reconnect() tries to restore keyboard into a sane state and is 1127 * most likely called on resume. 1128 */ 1129 1130 static int atkbd_reconnect(struct serio *serio) 1131 { 1132 struct atkbd *atkbd = serio_get_drvdata(serio); 1133 struct serio_driver *drv = serio->drv; 1134 1135 if (!atkbd || !drv) { 1136 printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n"); 1137 return -1; 1138 } 1139 1140 atkbd_disable(atkbd); 1141 1142 if (atkbd->write) { 1143 if (atkbd_probe(atkbd)) 1144 return -1; 1145 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra)) 1146 return -1; 1147 1148 atkbd_activate(atkbd); 1149 1150 /* 1151 * Restore repeat rate and LEDs (that were reset by atkbd_activate) 1152 * to pre-resume state 1153 */ 1154 if (!atkbd->softrepeat) 1155 atkbd_set_repeat_rate(atkbd); 1156 atkbd_set_leds(atkbd); 1157 } 1158 1159 atkbd_enable(atkbd); 1160 1161 return 0; 1162 } 1163 1164 static struct serio_device_id atkbd_serio_ids[] = { 1165 { 1166 .type = SERIO_8042, 1167 .proto = SERIO_ANY, 1168 .id = SERIO_ANY, 1169 .extra = SERIO_ANY, 1170 }, 1171 { 1172 .type = SERIO_8042_XL, 1173 .proto = SERIO_ANY, 1174 .id = SERIO_ANY, 1175 .extra = SERIO_ANY, 1176 }, 1177 { 1178 .type = SERIO_RS232, 1179 .proto = SERIO_PS2SER, 1180 .id = SERIO_ANY, 1181 .extra = SERIO_ANY, 1182 }, 1183 { 0 } 1184 }; 1185 1186 MODULE_DEVICE_TABLE(serio, atkbd_serio_ids); 1187 1188 static struct serio_driver atkbd_drv = { 1189 .driver = { 1190 .name = "atkbd", 1191 }, 1192 .description = DRIVER_DESC, 1193 .id_table = atkbd_serio_ids, 1194 .interrupt = atkbd_interrupt, 1195 .connect = atkbd_connect, 1196 .reconnect = atkbd_reconnect, 1197 .disconnect = atkbd_disconnect, 1198 .cleanup = atkbd_cleanup, 1199 }; 1200 1201 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf, 1202 ssize_t (*handler)(struct atkbd *, char *)) 1203 { 1204 struct serio *serio = to_serio_port(dev); 1205 int retval; 1206 1207 retval = serio_pin_driver(serio); 1208 if (retval) 1209 return retval; 1210 1211 if (serio->drv != &atkbd_drv) { 1212 retval = -ENODEV; 1213 goto out; 1214 } 1215 1216 retval = handler((struct atkbd *)serio_get_drvdata(serio), buf); 1217 1218 out: 1219 serio_unpin_driver(serio); 1220 return retval; 1221 } 1222 1223 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count, 1224 ssize_t (*handler)(struct atkbd *, const char *, size_t)) 1225 { 1226 struct serio *serio = to_serio_port(dev); 1227 struct atkbd *atkbd; 1228 int retval; 1229 1230 retval = serio_pin_driver(serio); 1231 if (retval) 1232 return retval; 1233 1234 if (serio->drv != &atkbd_drv) { 1235 retval = -ENODEV; 1236 goto out; 1237 } 1238 1239 atkbd = serio_get_drvdata(serio); 1240 atkbd_disable(atkbd); 1241 retval = handler(atkbd, buf, count); 1242 atkbd_enable(atkbd); 1243 1244 out: 1245 serio_unpin_driver(serio); 1246 return retval; 1247 } 1248 1249 static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf) 1250 { 1251 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0); 1252 } 1253 1254 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count) 1255 { 1256 struct input_dev *old_dev, *new_dev; 1257 unsigned long value; 1258 int err; 1259 unsigned char old_extra, old_set; 1260 1261 if (!atkbd->write) 1262 return -EIO; 1263 1264 if (strict_strtoul(buf, 10, &value) || value > 1) 1265 return -EINVAL; 1266 1267 if (atkbd->extra != value) { 1268 /* 1269 * Since device's properties will change we need to 1270 * unregister old device. But allocate and register 1271 * new one first to make sure we have it. 1272 */ 1273 old_dev = atkbd->dev; 1274 old_extra = atkbd->extra; 1275 old_set = atkbd->set; 1276 1277 new_dev = input_allocate_device(); 1278 if (!new_dev) 1279 return -ENOMEM; 1280 1281 atkbd->dev = new_dev; 1282 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value); 1283 atkbd_activate(atkbd); 1284 atkbd_set_keycode_table(atkbd); 1285 atkbd_set_device_attrs(atkbd); 1286 1287 err = input_register_device(atkbd->dev); 1288 if (err) { 1289 input_free_device(new_dev); 1290 1291 atkbd->dev = old_dev; 1292 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra); 1293 atkbd_set_keycode_table(atkbd); 1294 atkbd_set_device_attrs(atkbd); 1295 1296 return err; 1297 } 1298 input_unregister_device(old_dev); 1299 1300 } 1301 return count; 1302 } 1303 1304 static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf) 1305 { 1306 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0); 1307 } 1308 1309 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count) 1310 { 1311 struct input_dev *old_dev, *new_dev; 1312 unsigned long value; 1313 int err; 1314 unsigned char old_scroll; 1315 1316 if (strict_strtoul(buf, 10, &value) || value > 1) 1317 return -EINVAL; 1318 1319 if (atkbd->scroll != value) { 1320 old_dev = atkbd->dev; 1321 old_scroll = atkbd->scroll; 1322 1323 new_dev = input_allocate_device(); 1324 if (!new_dev) 1325 return -ENOMEM; 1326 1327 atkbd->dev = new_dev; 1328 atkbd->scroll = value; 1329 atkbd_set_keycode_table(atkbd); 1330 atkbd_set_device_attrs(atkbd); 1331 1332 err = input_register_device(atkbd->dev); 1333 if (err) { 1334 input_free_device(new_dev); 1335 1336 atkbd->scroll = old_scroll; 1337 atkbd->dev = old_dev; 1338 atkbd_set_keycode_table(atkbd); 1339 atkbd_set_device_attrs(atkbd); 1340 1341 return err; 1342 } 1343 input_unregister_device(old_dev); 1344 } 1345 return count; 1346 } 1347 1348 static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf) 1349 { 1350 return sprintf(buf, "%d\n", atkbd->set); 1351 } 1352 1353 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count) 1354 { 1355 struct input_dev *old_dev, *new_dev; 1356 unsigned long value; 1357 int err; 1358 unsigned char old_set, old_extra; 1359 1360 if (!atkbd->write) 1361 return -EIO; 1362 1363 if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3)) 1364 return -EINVAL; 1365 1366 if (atkbd->set != value) { 1367 old_dev = atkbd->dev; 1368 old_extra = atkbd->extra; 1369 old_set = atkbd->set; 1370 1371 new_dev = input_allocate_device(); 1372 if (!new_dev) 1373 return -ENOMEM; 1374 1375 atkbd->dev = new_dev; 1376 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra); 1377 atkbd_activate(atkbd); 1378 atkbd_set_keycode_table(atkbd); 1379 atkbd_set_device_attrs(atkbd); 1380 1381 err = input_register_device(atkbd->dev); 1382 if (err) { 1383 input_free_device(new_dev); 1384 1385 atkbd->dev = old_dev; 1386 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra); 1387 atkbd_set_keycode_table(atkbd); 1388 atkbd_set_device_attrs(atkbd); 1389 1390 return err; 1391 } 1392 input_unregister_device(old_dev); 1393 } 1394 return count; 1395 } 1396 1397 static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf) 1398 { 1399 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0); 1400 } 1401 1402 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count) 1403 { 1404 struct input_dev *old_dev, *new_dev; 1405 unsigned long value; 1406 int err; 1407 unsigned char old_softrepeat, old_softraw; 1408 1409 if (!atkbd->write) 1410 return -EIO; 1411 1412 if (strict_strtoul(buf, 10, &value) || value > 1) 1413 return -EINVAL; 1414 1415 if (atkbd->softrepeat != value) { 1416 old_dev = atkbd->dev; 1417 old_softrepeat = atkbd->softrepeat; 1418 old_softraw = atkbd->softraw; 1419 1420 new_dev = input_allocate_device(); 1421 if (!new_dev) 1422 return -ENOMEM; 1423 1424 atkbd->dev = new_dev; 1425 atkbd->softrepeat = value; 1426 if (atkbd->softrepeat) 1427 atkbd->softraw = 1; 1428 atkbd_set_device_attrs(atkbd); 1429 1430 err = input_register_device(atkbd->dev); 1431 if (err) { 1432 input_free_device(new_dev); 1433 1434 atkbd->dev = old_dev; 1435 atkbd->softrepeat = old_softrepeat; 1436 atkbd->softraw = old_softraw; 1437 atkbd_set_device_attrs(atkbd); 1438 1439 return err; 1440 } 1441 input_unregister_device(old_dev); 1442 } 1443 return count; 1444 } 1445 1446 1447 static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf) 1448 { 1449 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0); 1450 } 1451 1452 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count) 1453 { 1454 struct input_dev *old_dev, *new_dev; 1455 unsigned long value; 1456 int err; 1457 unsigned char old_softraw; 1458 1459 if (strict_strtoul(buf, 10, &value) || value > 1) 1460 return -EINVAL; 1461 1462 if (atkbd->softraw != value) { 1463 old_dev = atkbd->dev; 1464 old_softraw = atkbd->softraw; 1465 1466 new_dev = input_allocate_device(); 1467 if (!new_dev) 1468 return -ENOMEM; 1469 1470 atkbd->dev = new_dev; 1471 atkbd->softraw = value; 1472 atkbd_set_device_attrs(atkbd); 1473 1474 err = input_register_device(atkbd->dev); 1475 if (err) { 1476 input_free_device(new_dev); 1477 1478 atkbd->dev = old_dev; 1479 atkbd->softraw = old_softraw; 1480 atkbd_set_device_attrs(atkbd); 1481 1482 return err; 1483 } 1484 input_unregister_device(old_dev); 1485 } 1486 return count; 1487 } 1488 1489 static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf) 1490 { 1491 return sprintf(buf, "%lu\n", atkbd->err_count); 1492 } 1493 1494 static int __init atkbd_setup_forced_release(const struct dmi_system_id *id) 1495 { 1496 atkbd_platform_fixup = atkbd_apply_forced_release_keylist; 1497 atkbd_platform_fixup_data = id->driver_data; 1498 1499 return 0; 1500 } 1501 1502 static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = { 1503 { 1504 .ident = "Dell Laptop", 1505 .matches = { 1506 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 1507 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */ 1508 }, 1509 .callback = atkbd_setup_forced_release, 1510 .driver_data = atkbd_dell_laptop_forced_release_keys, 1511 }, 1512 { 1513 .ident = "Dell Laptop", 1514 .matches = { 1515 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"), 1516 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */ 1517 }, 1518 .callback = atkbd_setup_forced_release, 1519 .driver_data = atkbd_dell_laptop_forced_release_keys, 1520 }, 1521 { 1522 .ident = "HP 2133", 1523 .matches = { 1524 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1525 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"), 1526 }, 1527 .callback = atkbd_setup_forced_release, 1528 .driver_data = atkbd_hp_forced_release_keys, 1529 }, 1530 { 1531 .ident = "HP Pavilion ZV6100", 1532 .matches = { 1533 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1534 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"), 1535 }, 1536 .callback = atkbd_setup_forced_release, 1537 .driver_data = atkbd_hp_zv6100_forced_release_keys, 1538 }, 1539 { 1540 .ident = "Inventec Symphony", 1541 .matches = { 1542 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"), 1543 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"), 1544 }, 1545 .callback = atkbd_setup_forced_release, 1546 .driver_data = atkbd_inventec_forced_release_keys, 1547 }, 1548 { 1549 .ident = "Samsung NC10", 1550 .matches = { 1551 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), 1552 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"), 1553 }, 1554 .callback = atkbd_setup_forced_release, 1555 .driver_data = atkbd_samsung_forced_release_keys, 1556 }, 1557 { 1558 .ident = "Samsung NC20", 1559 .matches = { 1560 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), 1561 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"), 1562 }, 1563 .callback = atkbd_setup_forced_release, 1564 .driver_data = atkbd_samsung_forced_release_keys, 1565 }, 1566 { 1567 .ident = "Samsung SQ45S70S", 1568 .matches = { 1569 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), 1570 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"), 1571 }, 1572 .callback = atkbd_setup_forced_release, 1573 .driver_data = atkbd_samsung_forced_release_keys, 1574 }, 1575 { 1576 .ident = "Fujitsu Amilo PA 1510", 1577 .matches = { 1578 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 1579 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"), 1580 }, 1581 .callback = atkbd_setup_forced_release, 1582 .driver_data = atkbd_amilo_pa1510_forced_release_keys, 1583 }, 1584 { 1585 .ident = "Fujitsu Amilo Pi 3525", 1586 .matches = { 1587 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 1588 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"), 1589 }, 1590 .callback = atkbd_setup_forced_release, 1591 .driver_data = atkbd_amilo_pi3525_forced_release_keys, 1592 }, 1593 { 1594 .ident = "Fujitsu Amilo Xi 3650", 1595 .matches = { 1596 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 1597 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"), 1598 }, 1599 .callback = atkbd_setup_forced_release, 1600 .driver_data = atkbd_amilo_xi3650_forced_release_keys, 1601 }, 1602 { 1603 .ident = "Soltech Corporation TA12", 1604 .matches = { 1605 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"), 1606 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"), 1607 }, 1608 .callback = atkbd_setup_forced_release, 1609 .driver_data = atkdb_soltech_ta12_forced_release_keys, 1610 }, 1611 { } 1612 }; 1613 1614 static int __init atkbd_init(void) 1615 { 1616 dmi_check_system(atkbd_dmi_quirk_table); 1617 1618 return serio_register_driver(&atkbd_drv); 1619 } 1620 1621 static void __exit atkbd_exit(void) 1622 { 1623 serio_unregister_driver(&atkbd_drv); 1624 } 1625 1626 module_init(atkbd_init); 1627 module_exit(atkbd_exit); 1628