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