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 ketymap 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 unsigned char param[1]; 777 778 /* 779 * Set the LEDs to a defined state. 780 */ 781 782 param[0] = 0; 783 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS)) 784 return -1; 785 786 /* 787 * Set autorepeat to fastest possible. 788 */ 789 790 param[0] = 0; 791 if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP)) 792 return -1; 793 794 /* 795 * Enable the keyboard to receive keystrokes. 796 */ 797 798 if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) { 799 printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n", 800 ps2dev->serio->phys); 801 return -1; 802 } 803 804 return 0; 805 } 806 807 /* 808 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a 809 * reboot. 810 */ 811 812 static void atkbd_cleanup(struct serio *serio) 813 { 814 struct atkbd *atkbd = serio_get_drvdata(serio); 815 816 atkbd_disable(atkbd); 817 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_BAT); 818 } 819 820 821 /* 822 * atkbd_disconnect() closes and frees. 823 */ 824 825 static void atkbd_disconnect(struct serio *serio) 826 { 827 struct atkbd *atkbd = serio_get_drvdata(serio); 828 829 atkbd_disable(atkbd); 830 831 /* make sure we don't have a command in flight */ 832 cancel_delayed_work_sync(&atkbd->event_work); 833 834 sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group); 835 input_unregister_device(atkbd->dev); 836 serio_close(serio); 837 serio_set_drvdata(serio, NULL); 838 kfree(atkbd); 839 } 840 841 /* 842 * generate release events for the keycodes given in data 843 */ 844 static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd, 845 const void *data) 846 { 847 const unsigned int *keys = data; 848 unsigned int i; 849 850 if (atkbd->set == 2) 851 for (i = 0; keys[i] != -1U; i++) 852 __set_bit(keys[i], atkbd->force_release_mask); 853 } 854 855 /* 856 * Most special keys (Fn+F?) on Dell laptops do not generate release 857 * events so we have to do it ourselves. 858 */ 859 static unsigned int atkbd_dell_laptop_forced_release_keys[] = { 860 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U 861 }; 862 863 /* 864 * Perform fixup for HP system that doesn't generate release 865 * for its video switch 866 */ 867 static unsigned int atkbd_hp_forced_release_keys[] = { 868 0x94, -1U 869 }; 870 871 /* 872 * Inventec system with broken key release on volume keys 873 */ 874 static unsigned int atkbd_inventec_forced_release_keys[] = { 875 0xae, 0xb0, -1U 876 }; 877 878 /* 879 * Perform fixup for HP Pavilion ZV6100 laptop that doesn't generate release 880 * for its volume buttons 881 */ 882 static unsigned int atkbd_hp_zv6100_forced_release_keys[] = { 883 0xae, 0xb0, -1U 884 }; 885 886 /* 887 * Perform fixup for HP (Compaq) Presario R4000 R4100 R4200 that don't generate 888 * release for their volume buttons 889 */ 890 static unsigned int atkbd_hp_r4000_forced_release_keys[] = { 891 0xae, 0xb0, -1U 892 }; 893 894 /* 895 * Samsung NC10,NC20 with Fn+F? key release not working 896 */ 897 static unsigned int atkbd_samsung_forced_release_keys[] = { 898 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U 899 }; 900 901 /* 902 * The volume up and volume down special keys on a Fujitsu Amilo PA 1510 laptop 903 * do not generate release events so we have to do it ourselves. 904 */ 905 static unsigned int atkbd_amilo_pa1510_forced_release_keys[] = { 906 0xb0, 0xae, -1U 907 }; 908 909 /* 910 * Amilo Pi 3525 key release for Fn+Volume keys not working 911 */ 912 static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = { 913 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U 914 }; 915 916 /* 917 * Amilo Xi 3650 key release for light touch bar not working 918 */ 919 static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = { 920 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U 921 }; 922 923 /* 924 * Soltech TA12 system with broken key release on volume keys and mute key 925 */ 926 static unsigned int atkdb_soltech_ta12_forced_release_keys[] = { 927 0xa0, 0xae, 0xb0, -1U 928 }; 929 930 /* 931 * atkbd_set_keycode_table() initializes keyboard's keycode table 932 * according to the selected scancode set 933 */ 934 935 static void atkbd_set_keycode_table(struct atkbd *atkbd) 936 { 937 unsigned int scancode; 938 int i, j; 939 940 memset(atkbd->keycode, 0, sizeof(atkbd->keycode)); 941 bitmap_zero(atkbd->force_release_mask, ATKBD_KEYMAP_SIZE); 942 943 if (atkbd->translated) { 944 for (i = 0; i < 128; i++) { 945 scancode = atkbd_unxlate_table[i]; 946 atkbd->keycode[i] = atkbd_set2_keycode[scancode]; 947 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80]; 948 if (atkbd->scroll) 949 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++) 950 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2) 951 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode; 952 } 953 } else if (atkbd->set == 3) { 954 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode)); 955 } else { 956 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode)); 957 958 if (atkbd->scroll) 959 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) { 960 scancode = atkbd_scroll_keys[i].set2; 961 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode; 962 } 963 } 964 965 /* 966 * HANGEUL and HANJA keys do not send release events so we need to 967 * generate such events ourselves 968 */ 969 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL); 970 atkbd->keycode[scancode] = KEY_HANGEUL; 971 __set_bit(scancode, atkbd->force_release_mask); 972 973 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA); 974 atkbd->keycode[scancode] = KEY_HANJA; 975 __set_bit(scancode, atkbd->force_release_mask); 976 977 /* 978 * Perform additional fixups 979 */ 980 if (atkbd_platform_fixup) 981 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data); 982 } 983 984 /* 985 * atkbd_set_device_attrs() sets up keyboard's input device structure 986 */ 987 988 static void atkbd_set_device_attrs(struct atkbd *atkbd) 989 { 990 struct input_dev *input_dev = atkbd->dev; 991 int i; 992 993 if (atkbd->extra) 994 snprintf(atkbd->name, sizeof(atkbd->name), 995 "AT Set 2 Extra keyboard"); 996 else 997 snprintf(atkbd->name, sizeof(atkbd->name), 998 "AT %s Set %d keyboard", 999 atkbd->translated ? "Translated" : "Raw", atkbd->set); 1000 1001 snprintf(atkbd->phys, sizeof(atkbd->phys), 1002 "%s/input0", atkbd->ps2dev.serio->phys); 1003 1004 input_dev->name = atkbd->name; 1005 input_dev->phys = atkbd->phys; 1006 input_dev->id.bustype = BUS_I8042; 1007 input_dev->id.vendor = 0x0001; 1008 input_dev->id.product = atkbd->translated ? 1 : atkbd->set; 1009 input_dev->id.version = atkbd->id; 1010 input_dev->event = atkbd_event; 1011 input_dev->dev.parent = &atkbd->ps2dev.serio->dev; 1012 1013 input_set_drvdata(input_dev, atkbd); 1014 1015 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | 1016 BIT_MASK(EV_MSC); 1017 1018 if (atkbd->write) { 1019 input_dev->evbit[0] |= BIT_MASK(EV_LED); 1020 input_dev->ledbit[0] = BIT_MASK(LED_NUML) | 1021 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL); 1022 } 1023 1024 if (atkbd->extra) 1025 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) | 1026 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) | 1027 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC); 1028 1029 if (!atkbd->softrepeat) { 1030 input_dev->rep[REP_DELAY] = 250; 1031 input_dev->rep[REP_PERIOD] = 33; 1032 } 1033 1034 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) : 1035 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN); 1036 1037 if (atkbd->scroll) { 1038 input_dev->evbit[0] |= BIT_MASK(EV_REL); 1039 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) | 1040 BIT_MASK(REL_HWHEEL); 1041 __set_bit(BTN_MIDDLE, input_dev->keybit); 1042 } 1043 1044 input_dev->keycode = atkbd->keycode; 1045 input_dev->keycodesize = sizeof(unsigned short); 1046 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode); 1047 1048 for (i = 0; i < ATKBD_KEYMAP_SIZE; i++) 1049 if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL) 1050 __set_bit(atkbd->keycode[i], input_dev->keybit); 1051 } 1052 1053 /* 1054 * atkbd_connect() is called when the serio module finds an interface 1055 * that isn't handled yet by an appropriate device driver. We check if 1056 * there is an AT keyboard out there and if yes, we register ourselves 1057 * to the input module. 1058 */ 1059 1060 static int atkbd_connect(struct serio *serio, struct serio_driver *drv) 1061 { 1062 struct atkbd *atkbd; 1063 struct input_dev *dev; 1064 int err = -ENOMEM; 1065 1066 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL); 1067 dev = input_allocate_device(); 1068 if (!atkbd || !dev) 1069 goto fail1; 1070 1071 atkbd->dev = dev; 1072 ps2_init(&atkbd->ps2dev, serio); 1073 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work); 1074 mutex_init(&atkbd->event_mutex); 1075 1076 switch (serio->id.type) { 1077 1078 case SERIO_8042_XL: 1079 atkbd->translated = 1; 1080 case SERIO_8042: 1081 if (serio->write) 1082 atkbd->write = 1; 1083 break; 1084 } 1085 1086 atkbd->softraw = atkbd_softraw; 1087 atkbd->softrepeat = atkbd_softrepeat; 1088 atkbd->scroll = atkbd_scroll; 1089 1090 if (atkbd->softrepeat) 1091 atkbd->softraw = 1; 1092 1093 serio_set_drvdata(serio, atkbd); 1094 1095 err = serio_open(serio, drv); 1096 if (err) 1097 goto fail2; 1098 1099 if (atkbd->write) { 1100 1101 if (atkbd_probe(atkbd)) { 1102 err = -ENODEV; 1103 goto fail3; 1104 } 1105 1106 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra); 1107 atkbd_activate(atkbd); 1108 1109 } else { 1110 atkbd->set = 2; 1111 atkbd->id = 0xab00; 1112 } 1113 1114 atkbd_set_keycode_table(atkbd); 1115 atkbd_set_device_attrs(atkbd); 1116 1117 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group); 1118 if (err) 1119 goto fail3; 1120 1121 atkbd_enable(atkbd); 1122 1123 err = input_register_device(atkbd->dev); 1124 if (err) 1125 goto fail4; 1126 1127 return 0; 1128 1129 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group); 1130 fail3: serio_close(serio); 1131 fail2: serio_set_drvdata(serio, NULL); 1132 fail1: input_free_device(dev); 1133 kfree(atkbd); 1134 return err; 1135 } 1136 1137 /* 1138 * atkbd_reconnect() tries to restore keyboard into a sane state and is 1139 * most likely called on resume. 1140 */ 1141 1142 static int atkbd_reconnect(struct serio *serio) 1143 { 1144 struct atkbd *atkbd = serio_get_drvdata(serio); 1145 struct serio_driver *drv = serio->drv; 1146 1147 if (!atkbd || !drv) { 1148 printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n"); 1149 return -1; 1150 } 1151 1152 atkbd_disable(atkbd); 1153 1154 if (atkbd->write) { 1155 if (atkbd_probe(atkbd)) 1156 return -1; 1157 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra)) 1158 return -1; 1159 1160 atkbd_activate(atkbd); 1161 1162 /* 1163 * Restore repeat rate and LEDs (that were reset by atkbd_activate) 1164 * to pre-resume state 1165 */ 1166 if (!atkbd->softrepeat) 1167 atkbd_set_repeat_rate(atkbd); 1168 atkbd_set_leds(atkbd); 1169 } 1170 1171 atkbd_enable(atkbd); 1172 1173 return 0; 1174 } 1175 1176 static struct serio_device_id atkbd_serio_ids[] = { 1177 { 1178 .type = SERIO_8042, 1179 .proto = SERIO_ANY, 1180 .id = SERIO_ANY, 1181 .extra = SERIO_ANY, 1182 }, 1183 { 1184 .type = SERIO_8042_XL, 1185 .proto = SERIO_ANY, 1186 .id = SERIO_ANY, 1187 .extra = SERIO_ANY, 1188 }, 1189 { 1190 .type = SERIO_RS232, 1191 .proto = SERIO_PS2SER, 1192 .id = SERIO_ANY, 1193 .extra = SERIO_ANY, 1194 }, 1195 { 0 } 1196 }; 1197 1198 MODULE_DEVICE_TABLE(serio, atkbd_serio_ids); 1199 1200 static struct serio_driver atkbd_drv = { 1201 .driver = { 1202 .name = "atkbd", 1203 }, 1204 .description = DRIVER_DESC, 1205 .id_table = atkbd_serio_ids, 1206 .interrupt = atkbd_interrupt, 1207 .connect = atkbd_connect, 1208 .reconnect = atkbd_reconnect, 1209 .disconnect = atkbd_disconnect, 1210 .cleanup = atkbd_cleanup, 1211 }; 1212 1213 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf, 1214 ssize_t (*handler)(struct atkbd *, char *)) 1215 { 1216 struct serio *serio = to_serio_port(dev); 1217 int retval; 1218 1219 retval = serio_pin_driver(serio); 1220 if (retval) 1221 return retval; 1222 1223 if (serio->drv != &atkbd_drv) { 1224 retval = -ENODEV; 1225 goto out; 1226 } 1227 1228 retval = handler((struct atkbd *)serio_get_drvdata(serio), buf); 1229 1230 out: 1231 serio_unpin_driver(serio); 1232 return retval; 1233 } 1234 1235 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count, 1236 ssize_t (*handler)(struct atkbd *, const char *, size_t)) 1237 { 1238 struct serio *serio = to_serio_port(dev); 1239 struct atkbd *atkbd; 1240 int retval; 1241 1242 retval = serio_pin_driver(serio); 1243 if (retval) 1244 return retval; 1245 1246 if (serio->drv != &atkbd_drv) { 1247 retval = -ENODEV; 1248 goto out; 1249 } 1250 1251 atkbd = serio_get_drvdata(serio); 1252 atkbd_disable(atkbd); 1253 retval = handler(atkbd, buf, count); 1254 atkbd_enable(atkbd); 1255 1256 out: 1257 serio_unpin_driver(serio); 1258 return retval; 1259 } 1260 1261 static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf) 1262 { 1263 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0); 1264 } 1265 1266 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count) 1267 { 1268 struct input_dev *old_dev, *new_dev; 1269 unsigned long value; 1270 int err; 1271 unsigned char old_extra, old_set; 1272 1273 if (!atkbd->write) 1274 return -EIO; 1275 1276 if (strict_strtoul(buf, 10, &value) || value > 1) 1277 return -EINVAL; 1278 1279 if (atkbd->extra != value) { 1280 /* 1281 * Since device's properties will change we need to 1282 * unregister old device. But allocate and register 1283 * new one first to make sure we have it. 1284 */ 1285 old_dev = atkbd->dev; 1286 old_extra = atkbd->extra; 1287 old_set = atkbd->set; 1288 1289 new_dev = input_allocate_device(); 1290 if (!new_dev) 1291 return -ENOMEM; 1292 1293 atkbd->dev = new_dev; 1294 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value); 1295 atkbd_activate(atkbd); 1296 atkbd_set_keycode_table(atkbd); 1297 atkbd_set_device_attrs(atkbd); 1298 1299 err = input_register_device(atkbd->dev); 1300 if (err) { 1301 input_free_device(new_dev); 1302 1303 atkbd->dev = old_dev; 1304 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra); 1305 atkbd_set_keycode_table(atkbd); 1306 atkbd_set_device_attrs(atkbd); 1307 1308 return err; 1309 } 1310 input_unregister_device(old_dev); 1311 1312 } 1313 return count; 1314 } 1315 1316 static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf) 1317 { 1318 size_t len = bitmap_scnlistprintf(buf, PAGE_SIZE - 2, 1319 atkbd->force_release_mask, ATKBD_KEYMAP_SIZE); 1320 1321 buf[len++] = '\n'; 1322 buf[len] = '\0'; 1323 1324 return len; 1325 } 1326 1327 static ssize_t atkbd_set_force_release(struct atkbd *atkbd, 1328 const char *buf, size_t count) 1329 { 1330 /* 64 bytes on stack should be acceptable */ 1331 DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE); 1332 int err; 1333 1334 err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE); 1335 if (err) 1336 return err; 1337 1338 memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask)); 1339 return count; 1340 } 1341 1342 1343 static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf) 1344 { 1345 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0); 1346 } 1347 1348 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count) 1349 { 1350 struct input_dev *old_dev, *new_dev; 1351 unsigned long value; 1352 int err; 1353 unsigned char old_scroll; 1354 1355 if (strict_strtoul(buf, 10, &value) || value > 1) 1356 return -EINVAL; 1357 1358 if (atkbd->scroll != value) { 1359 old_dev = atkbd->dev; 1360 old_scroll = atkbd->scroll; 1361 1362 new_dev = input_allocate_device(); 1363 if (!new_dev) 1364 return -ENOMEM; 1365 1366 atkbd->dev = new_dev; 1367 atkbd->scroll = value; 1368 atkbd_set_keycode_table(atkbd); 1369 atkbd_set_device_attrs(atkbd); 1370 1371 err = input_register_device(atkbd->dev); 1372 if (err) { 1373 input_free_device(new_dev); 1374 1375 atkbd->scroll = old_scroll; 1376 atkbd->dev = old_dev; 1377 atkbd_set_keycode_table(atkbd); 1378 atkbd_set_device_attrs(atkbd); 1379 1380 return err; 1381 } 1382 input_unregister_device(old_dev); 1383 } 1384 return count; 1385 } 1386 1387 static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf) 1388 { 1389 return sprintf(buf, "%d\n", atkbd->set); 1390 } 1391 1392 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count) 1393 { 1394 struct input_dev *old_dev, *new_dev; 1395 unsigned long value; 1396 int err; 1397 unsigned char old_set, old_extra; 1398 1399 if (!atkbd->write) 1400 return -EIO; 1401 1402 if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3)) 1403 return -EINVAL; 1404 1405 if (atkbd->set != value) { 1406 old_dev = atkbd->dev; 1407 old_extra = atkbd->extra; 1408 old_set = atkbd->set; 1409 1410 new_dev = input_allocate_device(); 1411 if (!new_dev) 1412 return -ENOMEM; 1413 1414 atkbd->dev = new_dev; 1415 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra); 1416 atkbd_activate(atkbd); 1417 atkbd_set_keycode_table(atkbd); 1418 atkbd_set_device_attrs(atkbd); 1419 1420 err = input_register_device(atkbd->dev); 1421 if (err) { 1422 input_free_device(new_dev); 1423 1424 atkbd->dev = old_dev; 1425 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra); 1426 atkbd_set_keycode_table(atkbd); 1427 atkbd_set_device_attrs(atkbd); 1428 1429 return err; 1430 } 1431 input_unregister_device(old_dev); 1432 } 1433 return count; 1434 } 1435 1436 static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf) 1437 { 1438 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0); 1439 } 1440 1441 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count) 1442 { 1443 struct input_dev *old_dev, *new_dev; 1444 unsigned long value; 1445 int err; 1446 unsigned char old_softrepeat, old_softraw; 1447 1448 if (!atkbd->write) 1449 return -EIO; 1450 1451 if (strict_strtoul(buf, 10, &value) || value > 1) 1452 return -EINVAL; 1453 1454 if (atkbd->softrepeat != value) { 1455 old_dev = atkbd->dev; 1456 old_softrepeat = atkbd->softrepeat; 1457 old_softraw = atkbd->softraw; 1458 1459 new_dev = input_allocate_device(); 1460 if (!new_dev) 1461 return -ENOMEM; 1462 1463 atkbd->dev = new_dev; 1464 atkbd->softrepeat = value; 1465 if (atkbd->softrepeat) 1466 atkbd->softraw = 1; 1467 atkbd_set_device_attrs(atkbd); 1468 1469 err = input_register_device(atkbd->dev); 1470 if (err) { 1471 input_free_device(new_dev); 1472 1473 atkbd->dev = old_dev; 1474 atkbd->softrepeat = old_softrepeat; 1475 atkbd->softraw = old_softraw; 1476 atkbd_set_device_attrs(atkbd); 1477 1478 return err; 1479 } 1480 input_unregister_device(old_dev); 1481 } 1482 return count; 1483 } 1484 1485 1486 static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf) 1487 { 1488 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0); 1489 } 1490 1491 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count) 1492 { 1493 struct input_dev *old_dev, *new_dev; 1494 unsigned long value; 1495 int err; 1496 unsigned char old_softraw; 1497 1498 if (strict_strtoul(buf, 10, &value) || value > 1) 1499 return -EINVAL; 1500 1501 if (atkbd->softraw != value) { 1502 old_dev = atkbd->dev; 1503 old_softraw = atkbd->softraw; 1504 1505 new_dev = input_allocate_device(); 1506 if (!new_dev) 1507 return -ENOMEM; 1508 1509 atkbd->dev = new_dev; 1510 atkbd->softraw = value; 1511 atkbd_set_device_attrs(atkbd); 1512 1513 err = input_register_device(atkbd->dev); 1514 if (err) { 1515 input_free_device(new_dev); 1516 1517 atkbd->dev = old_dev; 1518 atkbd->softraw = old_softraw; 1519 atkbd_set_device_attrs(atkbd); 1520 1521 return err; 1522 } 1523 input_unregister_device(old_dev); 1524 } 1525 return count; 1526 } 1527 1528 static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf) 1529 { 1530 return sprintf(buf, "%lu\n", atkbd->err_count); 1531 } 1532 1533 static int __init atkbd_setup_forced_release(const struct dmi_system_id *id) 1534 { 1535 atkbd_platform_fixup = atkbd_apply_forced_release_keylist; 1536 atkbd_platform_fixup_data = id->driver_data; 1537 1538 return 0; 1539 } 1540 1541 static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = { 1542 { 1543 .ident = "Dell Laptop", 1544 .matches = { 1545 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 1546 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */ 1547 }, 1548 .callback = atkbd_setup_forced_release, 1549 .driver_data = atkbd_dell_laptop_forced_release_keys, 1550 }, 1551 { 1552 .ident = "Dell Laptop", 1553 .matches = { 1554 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"), 1555 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */ 1556 }, 1557 .callback = atkbd_setup_forced_release, 1558 .driver_data = atkbd_dell_laptop_forced_release_keys, 1559 }, 1560 { 1561 .ident = "HP 2133", 1562 .matches = { 1563 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1564 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"), 1565 }, 1566 .callback = atkbd_setup_forced_release, 1567 .driver_data = atkbd_hp_forced_release_keys, 1568 }, 1569 { 1570 .ident = "HP Pavilion ZV6100", 1571 .matches = { 1572 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1573 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"), 1574 }, 1575 .callback = atkbd_setup_forced_release, 1576 .driver_data = atkbd_hp_zv6100_forced_release_keys, 1577 }, 1578 { 1579 .ident = "HP Presario R4000", 1580 .matches = { 1581 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1582 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"), 1583 }, 1584 .callback = atkbd_setup_forced_release, 1585 .driver_data = atkbd_hp_r4000_forced_release_keys, 1586 }, 1587 { 1588 .ident = "HP Presario R4100", 1589 .matches = { 1590 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1591 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"), 1592 }, 1593 .callback = atkbd_setup_forced_release, 1594 .driver_data = atkbd_hp_r4000_forced_release_keys, 1595 }, 1596 { 1597 .ident = "HP Presario R4200", 1598 .matches = { 1599 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1600 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"), 1601 }, 1602 .callback = atkbd_setup_forced_release, 1603 .driver_data = atkbd_hp_r4000_forced_release_keys, 1604 }, 1605 { 1606 .ident = "Inventec Symphony", 1607 .matches = { 1608 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"), 1609 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"), 1610 }, 1611 .callback = atkbd_setup_forced_release, 1612 .driver_data = atkbd_inventec_forced_release_keys, 1613 }, 1614 { 1615 .ident = "Samsung NC10", 1616 .matches = { 1617 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), 1618 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"), 1619 }, 1620 .callback = atkbd_setup_forced_release, 1621 .driver_data = atkbd_samsung_forced_release_keys, 1622 }, 1623 { 1624 .ident = "Samsung NC20", 1625 .matches = { 1626 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), 1627 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"), 1628 }, 1629 .callback = atkbd_setup_forced_release, 1630 .driver_data = atkbd_samsung_forced_release_keys, 1631 }, 1632 { 1633 .ident = "Samsung SQ45S70S", 1634 .matches = { 1635 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), 1636 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"), 1637 }, 1638 .callback = atkbd_setup_forced_release, 1639 .driver_data = atkbd_samsung_forced_release_keys, 1640 }, 1641 { 1642 .ident = "Fujitsu Amilo PA 1510", 1643 .matches = { 1644 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 1645 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"), 1646 }, 1647 .callback = atkbd_setup_forced_release, 1648 .driver_data = atkbd_amilo_pa1510_forced_release_keys, 1649 }, 1650 { 1651 .ident = "Fujitsu Amilo Pi 3525", 1652 .matches = { 1653 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 1654 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"), 1655 }, 1656 .callback = atkbd_setup_forced_release, 1657 .driver_data = atkbd_amilo_pi3525_forced_release_keys, 1658 }, 1659 { 1660 .ident = "Fujitsu Amilo Xi 3650", 1661 .matches = { 1662 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 1663 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"), 1664 }, 1665 .callback = atkbd_setup_forced_release, 1666 .driver_data = atkbd_amilo_xi3650_forced_release_keys, 1667 }, 1668 { 1669 .ident = "Soltech Corporation TA12", 1670 .matches = { 1671 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"), 1672 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"), 1673 }, 1674 .callback = atkbd_setup_forced_release, 1675 .driver_data = atkdb_soltech_ta12_forced_release_keys, 1676 }, 1677 { } 1678 }; 1679 1680 static int __init atkbd_init(void) 1681 { 1682 dmi_check_system(atkbd_dmi_quirk_table); 1683 1684 return serio_register_driver(&atkbd_drv); 1685 } 1686 1687 static void __exit atkbd_exit(void) 1688 { 1689 serio_unregister_driver(&atkbd_drv); 1690 } 1691 1692 module_init(atkbd_init); 1693 module_exit(atkbd_exit); 1694