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 unsigned long event_mask; 229 230 /* Serializes reconnect(), attr->set() and event work */ 231 struct mutex mutex; 232 }; 233 234 /* 235 * System-specific keymap fixup routine 236 */ 237 static void (*atkbd_platform_fixup)(struct atkbd *, const void *data); 238 static void *atkbd_platform_fixup_data; 239 static unsigned int (*atkbd_platform_scancode_fixup)(struct atkbd *, unsigned int); 240 241 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf, 242 ssize_t (*handler)(struct atkbd *, char *)); 243 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count, 244 ssize_t (*handler)(struct atkbd *, const char *, size_t)); 245 #define ATKBD_DEFINE_ATTR(_name) \ 246 static ssize_t atkbd_show_##_name(struct atkbd *, char *); \ 247 static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \ 248 static ssize_t atkbd_do_show_##_name(struct device *d, \ 249 struct device_attribute *attr, char *b) \ 250 { \ 251 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \ 252 } \ 253 static ssize_t atkbd_do_set_##_name(struct device *d, \ 254 struct device_attribute *attr, const char *b, size_t s) \ 255 { \ 256 return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \ 257 } \ 258 static struct device_attribute atkbd_attr_##_name = \ 259 __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name); 260 261 ATKBD_DEFINE_ATTR(extra); 262 ATKBD_DEFINE_ATTR(force_release); 263 ATKBD_DEFINE_ATTR(scroll); 264 ATKBD_DEFINE_ATTR(set); 265 ATKBD_DEFINE_ATTR(softrepeat); 266 ATKBD_DEFINE_ATTR(softraw); 267 268 #define ATKBD_DEFINE_RO_ATTR(_name) \ 269 static ssize_t atkbd_show_##_name(struct atkbd *, char *); \ 270 static ssize_t atkbd_do_show_##_name(struct device *d, \ 271 struct device_attribute *attr, char *b) \ 272 { \ 273 return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \ 274 } \ 275 static struct device_attribute atkbd_attr_##_name = \ 276 __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL); 277 278 ATKBD_DEFINE_RO_ATTR(err_count); 279 280 static struct attribute *atkbd_attributes[] = { 281 &atkbd_attr_extra.attr, 282 &atkbd_attr_force_release.attr, 283 &atkbd_attr_scroll.attr, 284 &atkbd_attr_set.attr, 285 &atkbd_attr_softrepeat.attr, 286 &atkbd_attr_softraw.attr, 287 &atkbd_attr_err_count.attr, 288 NULL 289 }; 290 291 static struct attribute_group atkbd_attribute_group = { 292 .attrs = atkbd_attributes, 293 }; 294 295 static const unsigned int xl_table[] = { 296 ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK, 297 ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL, 298 }; 299 300 /* 301 * Checks if we should mangle the scancode to extract 'release' bit 302 * in translated mode. 303 */ 304 static int atkbd_need_xlate(unsigned long xl_bit, unsigned char code) 305 { 306 int i; 307 308 if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1) 309 return 0; 310 311 for (i = 0; i < ARRAY_SIZE(xl_table); i++) 312 if (code == xl_table[i]) 313 return test_bit(i, &xl_bit); 314 315 return 1; 316 } 317 318 /* 319 * Calculates new value of xl_bit so the driver can distinguish 320 * between make/break pair of scancodes for select keys and PS/2 321 * protocol responses. 322 */ 323 static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code) 324 { 325 int i; 326 327 for (i = 0; i < ARRAY_SIZE(xl_table); i++) { 328 if (!((code ^ xl_table[i]) & 0x7f)) { 329 if (code & 0x80) 330 __clear_bit(i, &atkbd->xl_bit); 331 else 332 __set_bit(i, &atkbd->xl_bit); 333 break; 334 } 335 } 336 } 337 338 /* 339 * Encode the scancode, 0xe0 prefix, and high bit into a single integer, 340 * keeping kernel 2.4 compatibility for set 2 341 */ 342 static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code) 343 { 344 if (atkbd->set == 3) { 345 if (atkbd->emul == 1) 346 code |= 0x100; 347 } else { 348 code = (code & 0x7f) | ((code & 0x80) << 1); 349 if (atkbd->emul == 1) 350 code |= 0x80; 351 } 352 353 return code; 354 } 355 356 /* 357 * atkbd_interrupt(). Here takes place processing of data received from 358 * the keyboard into events. 359 */ 360 361 static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data, 362 unsigned int flags) 363 { 364 struct atkbd *atkbd = serio_get_drvdata(serio); 365 struct input_dev *dev = atkbd->dev; 366 unsigned int code = data; 367 int scroll = 0, hscroll = 0, click = -1; 368 int value; 369 unsigned short keycode; 370 371 #ifdef ATKBD_DEBUG 372 printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags); 373 #endif 374 375 #if !defined(__i386__) && !defined (__x86_64__) 376 if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) { 377 printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags); 378 serio_write(serio, ATKBD_CMD_RESEND); 379 atkbd->resend = 1; 380 goto out; 381 } 382 383 if (!flags && data == ATKBD_RET_ACK) 384 atkbd->resend = 0; 385 #endif 386 387 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK)) 388 if (ps2_handle_ack(&atkbd->ps2dev, data)) 389 goto out; 390 391 if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD)) 392 if (ps2_handle_response(&atkbd->ps2dev, data)) 393 goto out; 394 395 if (!atkbd->enabled) 396 goto out; 397 398 input_event(dev, EV_MSC, MSC_RAW, code); 399 400 if (atkbd_platform_scancode_fixup) 401 code = atkbd_platform_scancode_fixup(atkbd, code); 402 403 if (atkbd->translated) { 404 405 if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) { 406 atkbd->release = code >> 7; 407 code &= 0x7f; 408 } 409 410 if (!atkbd->emul) 411 atkbd_calculate_xl_bit(atkbd, data); 412 } 413 414 switch (code) { 415 case ATKBD_RET_BAT: 416 atkbd->enabled = 0; 417 serio_reconnect(atkbd->ps2dev.serio); 418 goto out; 419 case ATKBD_RET_EMUL0: 420 atkbd->emul = 1; 421 goto out; 422 case ATKBD_RET_EMUL1: 423 atkbd->emul = 2; 424 goto out; 425 case ATKBD_RET_RELEASE: 426 atkbd->release = 1; 427 goto out; 428 case ATKBD_RET_ACK: 429 case ATKBD_RET_NAK: 430 if (printk_ratelimit()) 431 printk(KERN_WARNING "atkbd.c: Spurious %s on %s. " 432 "Some program might be trying access hardware directly.\n", 433 data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys); 434 goto out; 435 case ATKBD_RET_ERR: 436 atkbd->err_count++; 437 #ifdef ATKBD_DEBUG 438 printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys); 439 #endif 440 goto out; 441 } 442 443 code = atkbd_compat_scancode(atkbd, code); 444 445 if (atkbd->emul && --atkbd->emul) 446 goto out; 447 448 keycode = atkbd->keycode[code]; 449 450 if (keycode != ATKBD_KEY_NULL) 451 input_event(dev, EV_MSC, MSC_SCAN, code); 452 453 switch (keycode) { 454 case ATKBD_KEY_NULL: 455 break; 456 case ATKBD_KEY_UNKNOWN: 457 printk(KERN_WARNING 458 "atkbd.c: Unknown key %s (%s set %d, code %#x on %s).\n", 459 atkbd->release ? "released" : "pressed", 460 atkbd->translated ? "translated" : "raw", 461 atkbd->set, code, serio->phys); 462 printk(KERN_WARNING 463 "atkbd.c: Use 'setkeycodes %s%02x <keycode>' to make it known.\n", 464 code & 0x80 ? "e0" : "", code & 0x7f); 465 input_sync(dev); 466 break; 467 case ATKBD_SCR_1: 468 scroll = 1 - atkbd->release * 2; 469 break; 470 case ATKBD_SCR_2: 471 scroll = 2 - atkbd->release * 4; 472 break; 473 case ATKBD_SCR_4: 474 scroll = 4 - atkbd->release * 8; 475 break; 476 case ATKBD_SCR_8: 477 scroll = 8 - atkbd->release * 16; 478 break; 479 case ATKBD_SCR_CLICK: 480 click = !atkbd->release; 481 break; 482 case ATKBD_SCR_LEFT: 483 hscroll = -1; 484 break; 485 case ATKBD_SCR_RIGHT: 486 hscroll = 1; 487 break; 488 default: 489 if (atkbd->release) { 490 value = 0; 491 atkbd->last = 0; 492 } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) { 493 /* Workaround Toshiba laptop multiple keypress */ 494 value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2; 495 } else { 496 value = 1; 497 atkbd->last = code; 498 atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2; 499 } 500 501 input_event(dev, EV_KEY, keycode, value); 502 input_sync(dev); 503 504 if (value && test_bit(code, atkbd->force_release_mask)) { 505 input_report_key(dev, keycode, 0); 506 input_sync(dev); 507 } 508 } 509 510 if (atkbd->scroll) { 511 if (click != -1) 512 input_report_key(dev, BTN_MIDDLE, click); 513 input_report_rel(dev, REL_WHEEL, scroll); 514 input_report_rel(dev, REL_HWHEEL, hscroll); 515 input_sync(dev); 516 } 517 518 atkbd->release = 0; 519 out: 520 return IRQ_HANDLED; 521 } 522 523 static int atkbd_set_repeat_rate(struct atkbd *atkbd) 524 { 525 const short period[32] = 526 { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125, 527 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 }; 528 const short delay[4] = 529 { 250, 500, 750, 1000 }; 530 531 struct input_dev *dev = atkbd->dev; 532 unsigned char param; 533 int i = 0, j = 0; 534 535 while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD]) 536 i++; 537 dev->rep[REP_PERIOD] = period[i]; 538 539 while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY]) 540 j++; 541 dev->rep[REP_DELAY] = delay[j]; 542 543 param = i | (j << 5); 544 return ps2_command(&atkbd->ps2dev, ¶m, ATKBD_CMD_SETREP); 545 } 546 547 static int atkbd_set_leds(struct atkbd *atkbd) 548 { 549 struct input_dev *dev = atkbd->dev; 550 unsigned char param[2]; 551 552 param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0) 553 | (test_bit(LED_NUML, dev->led) ? 2 : 0) 554 | (test_bit(LED_CAPSL, dev->led) ? 4 : 0); 555 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS)) 556 return -1; 557 558 if (atkbd->extra) { 559 param[0] = 0; 560 param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0) 561 | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0) 562 | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0) 563 | (test_bit(LED_MISC, dev->led) ? 0x10 : 0) 564 | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0); 565 if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS)) 566 return -1; 567 } 568 569 return 0; 570 } 571 572 /* 573 * atkbd_event_work() is used to complete processing of events that 574 * can not be processed by input_event() which is often called from 575 * interrupt context. 576 */ 577 578 static void atkbd_event_work(struct work_struct *work) 579 { 580 struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work); 581 582 mutex_lock(&atkbd->mutex); 583 584 if (!atkbd->enabled) { 585 /* 586 * Serio ports are resumed asynchronously so while driver core 587 * thinks that device is already fully operational in reality 588 * it may not be ready yet. In this case we need to keep 589 * rescheduling till reconnect completes. 590 */ 591 schedule_delayed_work(&atkbd->event_work, 592 msecs_to_jiffies(100)); 593 } else { 594 if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask)) 595 atkbd_set_leds(atkbd); 596 597 if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask)) 598 atkbd_set_repeat_rate(atkbd); 599 } 600 601 mutex_unlock(&atkbd->mutex); 602 } 603 604 /* 605 * Schedule switch for execution. We need to throttle requests, 606 * otherwise keyboard may become unresponsive. 607 */ 608 static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit) 609 { 610 unsigned long delay = msecs_to_jiffies(50); 611 612 if (time_after(jiffies, atkbd->event_jiffies + delay)) 613 delay = 0; 614 615 atkbd->event_jiffies = jiffies; 616 set_bit(event_bit, &atkbd->event_mask); 617 mb(); 618 schedule_delayed_work(&atkbd->event_work, delay); 619 } 620 621 /* 622 * Event callback from the input module. Events that change the state of 623 * the hardware are processed here. If action can not be performed in 624 * interrupt context it is offloaded to atkbd_event_work. 625 */ 626 627 static int atkbd_event(struct input_dev *dev, 628 unsigned int type, unsigned int code, int value) 629 { 630 struct atkbd *atkbd = input_get_drvdata(dev); 631 632 if (!atkbd->write) 633 return -1; 634 635 switch (type) { 636 637 case EV_LED: 638 atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT); 639 return 0; 640 641 case EV_REP: 642 if (!atkbd->softrepeat) 643 atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT); 644 return 0; 645 } 646 647 return -1; 648 } 649 650 /* 651 * atkbd_enable() signals that interrupt handler is allowed to 652 * generate input events. 653 */ 654 655 static inline void atkbd_enable(struct atkbd *atkbd) 656 { 657 serio_pause_rx(atkbd->ps2dev.serio); 658 atkbd->enabled = 1; 659 serio_continue_rx(atkbd->ps2dev.serio); 660 } 661 662 /* 663 * atkbd_disable() tells input handler that all incoming data except 664 * for ACKs and command response should be dropped. 665 */ 666 667 static inline void atkbd_disable(struct atkbd *atkbd) 668 { 669 serio_pause_rx(atkbd->ps2dev.serio); 670 atkbd->enabled = 0; 671 serio_continue_rx(atkbd->ps2dev.serio); 672 } 673 674 /* 675 * atkbd_probe() probes for an AT keyboard on a serio port. 676 */ 677 678 static int atkbd_probe(struct atkbd *atkbd) 679 { 680 struct ps2dev *ps2dev = &atkbd->ps2dev; 681 unsigned char param[2]; 682 683 /* 684 * Some systems, where the bit-twiddling when testing the io-lines of the 685 * controller may confuse the keyboard need a full reset of the keyboard. On 686 * these systems the BIOS also usually doesn't do it for us. 687 */ 688 689 if (atkbd_reset) 690 if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT)) 691 printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", ps2dev->serio->phys); 692 693 /* 694 * Then we check the keyboard ID. We should get 0xab83 under normal conditions. 695 * Some keyboards report different values, but the first byte is always 0xab or 696 * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this 697 * should make sure we don't try to set the LEDs on it. 698 */ 699 700 param[0] = param[1] = 0xa5; /* initialize with invalid values */ 701 if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) { 702 703 /* 704 * If the get ID command failed, we check if we can at least set the LEDs on 705 * the keyboard. This should work on every keyboard out there. It also turns 706 * the LEDs off, which we want anyway. 707 */ 708 param[0] = 0; 709 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS)) 710 return -1; 711 atkbd->id = 0xabba; 712 return 0; 713 } 714 715 if (!ps2_is_keyboard_id(param[0])) 716 return -1; 717 718 atkbd->id = (param[0] << 8) | param[1]; 719 720 if (atkbd->id == 0xaca1 && atkbd->translated) { 721 printk(KERN_ERR "atkbd.c: NCD terminal keyboards are only supported on non-translating\n"); 722 printk(KERN_ERR "atkbd.c: controllers. Use i8042.direct=1 to disable translation.\n"); 723 return -1; 724 } 725 726 return 0; 727 } 728 729 /* 730 * atkbd_select_set checks if a keyboard has a working Set 3 support, and 731 * sets it into that. Unfortunately there are keyboards that can be switched 732 * to Set 3, but don't work well in that (BTC Multimedia ...) 733 */ 734 735 static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra) 736 { 737 struct ps2dev *ps2dev = &atkbd->ps2dev; 738 unsigned char param[2]; 739 740 atkbd->extra = 0; 741 /* 742 * For known special keyboards we can go ahead and set the correct set. 743 * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and 744 * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards. 745 */ 746 747 if (atkbd->translated) 748 return 2; 749 750 if (atkbd->id == 0xaca1) { 751 param[0] = 3; 752 ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET); 753 return 3; 754 } 755 756 if (allow_extra) { 757 param[0] = 0x71; 758 if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) { 759 atkbd->extra = 1; 760 return 2; 761 } 762 } 763 764 if (target_set != 3) 765 return 2; 766 767 if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) { 768 atkbd->id = param[0] << 8 | param[1]; 769 return 2; 770 } 771 772 param[0] = 3; 773 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET)) 774 return 2; 775 776 param[0] = 0; 777 if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET)) 778 return 2; 779 780 if (param[0] != 3) { 781 param[0] = 2; 782 if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET)) 783 return 2; 784 } 785 786 ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR); 787 788 return 3; 789 } 790 791 static int atkbd_reset_state(struct atkbd *atkbd) 792 { 793 struct ps2dev *ps2dev = &atkbd->ps2dev; 794 unsigned char param[1]; 795 796 /* 797 * Set the LEDs to a predefined state (all off). 798 */ 799 800 param[0] = 0; 801 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS)) 802 return -1; 803 804 /* 805 * Set autorepeat to fastest possible. 806 */ 807 808 param[0] = 0; 809 if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP)) 810 return -1; 811 812 return 0; 813 } 814 815 static int atkbd_activate(struct atkbd *atkbd) 816 { 817 struct ps2dev *ps2dev = &atkbd->ps2dev; 818 819 /* 820 * Enable the keyboard to receive keystrokes. 821 */ 822 823 if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) { 824 printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n", 825 ps2dev->serio->phys); 826 return -1; 827 } 828 829 return 0; 830 } 831 832 /* 833 * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a 834 * reboot. 835 */ 836 837 static void atkbd_cleanup(struct serio *serio) 838 { 839 struct atkbd *atkbd = serio_get_drvdata(serio); 840 841 atkbd_disable(atkbd); 842 ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_DEF); 843 } 844 845 846 /* 847 * atkbd_disconnect() closes and frees. 848 */ 849 850 static void atkbd_disconnect(struct serio *serio) 851 { 852 struct atkbd *atkbd = serio_get_drvdata(serio); 853 854 sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group); 855 856 atkbd_disable(atkbd); 857 858 input_unregister_device(atkbd->dev); 859 860 /* 861 * Make sure we don't have a command in flight. 862 * Note that since atkbd->enabled is false event work will keep 863 * rescheduling itself until it gets canceled and will not try 864 * accessing freed input device or serio port. 865 */ 866 cancel_delayed_work_sync(&atkbd->event_work); 867 868 serio_close(serio); 869 serio_set_drvdata(serio, NULL); 870 kfree(atkbd); 871 } 872 873 /* 874 * generate release events for the keycodes given in data 875 */ 876 static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd, 877 const void *data) 878 { 879 const unsigned int *keys = data; 880 unsigned int i; 881 882 if (atkbd->set == 2) 883 for (i = 0; keys[i] != -1U; i++) 884 __set_bit(keys[i], atkbd->force_release_mask); 885 } 886 887 /* 888 * Most special keys (Fn+F?) on Dell laptops do not generate release 889 * events so we have to do it ourselves. 890 */ 891 static unsigned int atkbd_dell_laptop_forced_release_keys[] = { 892 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U 893 }; 894 895 /* 896 * Perform fixup for HP system that doesn't generate release 897 * for its video switch 898 */ 899 static unsigned int atkbd_hp_forced_release_keys[] = { 900 0x94, -1U 901 }; 902 903 /* 904 * Samsung NC10,NC20 with Fn+F? key release not working 905 */ 906 static unsigned int atkbd_samsung_forced_release_keys[] = { 907 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U 908 }; 909 910 /* 911 * Amilo Pi 3525 key release for Fn+Volume keys not working 912 */ 913 static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = { 914 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U 915 }; 916 917 /* 918 * Amilo Xi 3650 key release for light touch bar not working 919 */ 920 static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = { 921 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U 922 }; 923 924 /* 925 * Soltech TA12 system with broken key release on volume keys and mute key 926 */ 927 static unsigned int atkdb_soltech_ta12_forced_release_keys[] = { 928 0xa0, 0xae, 0xb0, -1U 929 }; 930 931 /* 932 * Many notebooks don't send key release event for volume up/down 933 * keys, with key list below common among them 934 */ 935 static unsigned int atkbd_volume_forced_release_keys[] = { 936 0xae, 0xb0, -1U 937 }; 938 939 /* 940 * OQO 01+ multimedia keys (64--66) generate e0 6x upon release whereas 941 * they should be generating e4-e6 (0x80 | code). 942 */ 943 static unsigned int atkbd_oqo_01plus_scancode_fixup(struct atkbd *atkbd, 944 unsigned int code) 945 { 946 if (atkbd->translated && atkbd->emul == 1 && 947 (code == 0x64 || code == 0x65 || code == 0x66)) { 948 atkbd->emul = 0; 949 code |= 0x80; 950 } 951 952 return code; 953 } 954 955 /* 956 * atkbd_set_keycode_table() initializes keyboard's keycode table 957 * according to the selected scancode set 958 */ 959 960 static void atkbd_set_keycode_table(struct atkbd *atkbd) 961 { 962 unsigned int scancode; 963 int i, j; 964 965 memset(atkbd->keycode, 0, sizeof(atkbd->keycode)); 966 bitmap_zero(atkbd->force_release_mask, ATKBD_KEYMAP_SIZE); 967 968 if (atkbd->translated) { 969 for (i = 0; i < 128; i++) { 970 scancode = atkbd_unxlate_table[i]; 971 atkbd->keycode[i] = atkbd_set2_keycode[scancode]; 972 atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80]; 973 if (atkbd->scroll) 974 for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++) 975 if ((scancode | 0x80) == atkbd_scroll_keys[j].set2) 976 atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode; 977 } 978 } else if (atkbd->set == 3) { 979 memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode)); 980 } else { 981 memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode)); 982 983 if (atkbd->scroll) 984 for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) { 985 scancode = atkbd_scroll_keys[i].set2; 986 atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode; 987 } 988 } 989 990 /* 991 * HANGEUL and HANJA keys do not send release events so we need to 992 * generate such events ourselves 993 */ 994 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL); 995 atkbd->keycode[scancode] = KEY_HANGEUL; 996 __set_bit(scancode, atkbd->force_release_mask); 997 998 scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA); 999 atkbd->keycode[scancode] = KEY_HANJA; 1000 __set_bit(scancode, atkbd->force_release_mask); 1001 1002 /* 1003 * Perform additional fixups 1004 */ 1005 if (atkbd_platform_fixup) 1006 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data); 1007 } 1008 1009 /* 1010 * atkbd_set_device_attrs() sets up keyboard's input device structure 1011 */ 1012 1013 static void atkbd_set_device_attrs(struct atkbd *atkbd) 1014 { 1015 struct input_dev *input_dev = atkbd->dev; 1016 int i; 1017 1018 if (atkbd->extra) 1019 snprintf(atkbd->name, sizeof(atkbd->name), 1020 "AT Set 2 Extra keyboard"); 1021 else 1022 snprintf(atkbd->name, sizeof(atkbd->name), 1023 "AT %s Set %d keyboard", 1024 atkbd->translated ? "Translated" : "Raw", atkbd->set); 1025 1026 snprintf(atkbd->phys, sizeof(atkbd->phys), 1027 "%s/input0", atkbd->ps2dev.serio->phys); 1028 1029 input_dev->name = atkbd->name; 1030 input_dev->phys = atkbd->phys; 1031 input_dev->id.bustype = BUS_I8042; 1032 input_dev->id.vendor = 0x0001; 1033 input_dev->id.product = atkbd->translated ? 1 : atkbd->set; 1034 input_dev->id.version = atkbd->id; 1035 input_dev->event = atkbd_event; 1036 input_dev->dev.parent = &atkbd->ps2dev.serio->dev; 1037 1038 input_set_drvdata(input_dev, atkbd); 1039 1040 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | 1041 BIT_MASK(EV_MSC); 1042 1043 if (atkbd->write) { 1044 input_dev->evbit[0] |= BIT_MASK(EV_LED); 1045 input_dev->ledbit[0] = BIT_MASK(LED_NUML) | 1046 BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL); 1047 } 1048 1049 if (atkbd->extra) 1050 input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) | 1051 BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) | 1052 BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC); 1053 1054 if (!atkbd->softrepeat) { 1055 input_dev->rep[REP_DELAY] = 250; 1056 input_dev->rep[REP_PERIOD] = 33; 1057 } 1058 1059 input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) : 1060 BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN); 1061 1062 if (atkbd->scroll) { 1063 input_dev->evbit[0] |= BIT_MASK(EV_REL); 1064 input_dev->relbit[0] = BIT_MASK(REL_WHEEL) | 1065 BIT_MASK(REL_HWHEEL); 1066 __set_bit(BTN_MIDDLE, input_dev->keybit); 1067 } 1068 1069 input_dev->keycode = atkbd->keycode; 1070 input_dev->keycodesize = sizeof(unsigned short); 1071 input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode); 1072 1073 for (i = 0; i < ATKBD_KEYMAP_SIZE; i++) 1074 if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL) 1075 __set_bit(atkbd->keycode[i], input_dev->keybit); 1076 } 1077 1078 /* 1079 * atkbd_connect() is called when the serio module finds an interface 1080 * that isn't handled yet by an appropriate device driver. We check if 1081 * there is an AT keyboard out there and if yes, we register ourselves 1082 * to the input module. 1083 */ 1084 1085 static int atkbd_connect(struct serio *serio, struct serio_driver *drv) 1086 { 1087 struct atkbd *atkbd; 1088 struct input_dev *dev; 1089 int err = -ENOMEM; 1090 1091 atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL); 1092 dev = input_allocate_device(); 1093 if (!atkbd || !dev) 1094 goto fail1; 1095 1096 atkbd->dev = dev; 1097 ps2_init(&atkbd->ps2dev, serio); 1098 INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work); 1099 mutex_init(&atkbd->mutex); 1100 1101 switch (serio->id.type) { 1102 1103 case SERIO_8042_XL: 1104 atkbd->translated = 1; 1105 case SERIO_8042: 1106 if (serio->write) 1107 atkbd->write = 1; 1108 break; 1109 } 1110 1111 atkbd->softraw = atkbd_softraw; 1112 atkbd->softrepeat = atkbd_softrepeat; 1113 atkbd->scroll = atkbd_scroll; 1114 1115 if (atkbd->softrepeat) 1116 atkbd->softraw = 1; 1117 1118 serio_set_drvdata(serio, atkbd); 1119 1120 err = serio_open(serio, drv); 1121 if (err) 1122 goto fail2; 1123 1124 if (atkbd->write) { 1125 1126 if (atkbd_probe(atkbd)) { 1127 err = -ENODEV; 1128 goto fail3; 1129 } 1130 1131 atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra); 1132 atkbd_reset_state(atkbd); 1133 atkbd_activate(atkbd); 1134 1135 } else { 1136 atkbd->set = 2; 1137 atkbd->id = 0xab00; 1138 } 1139 1140 atkbd_set_keycode_table(atkbd); 1141 atkbd_set_device_attrs(atkbd); 1142 1143 err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group); 1144 if (err) 1145 goto fail3; 1146 1147 atkbd_enable(atkbd); 1148 1149 err = input_register_device(atkbd->dev); 1150 if (err) 1151 goto fail4; 1152 1153 return 0; 1154 1155 fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group); 1156 fail3: serio_close(serio); 1157 fail2: serio_set_drvdata(serio, NULL); 1158 fail1: input_free_device(dev); 1159 kfree(atkbd); 1160 return err; 1161 } 1162 1163 /* 1164 * atkbd_reconnect() tries to restore keyboard into a sane state and is 1165 * most likely called on resume. 1166 */ 1167 1168 static int atkbd_reconnect(struct serio *serio) 1169 { 1170 struct atkbd *atkbd = serio_get_drvdata(serio); 1171 struct serio_driver *drv = serio->drv; 1172 int retval = -1; 1173 1174 if (!atkbd || !drv) { 1175 printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n"); 1176 return -1; 1177 } 1178 1179 mutex_lock(&atkbd->mutex); 1180 1181 atkbd_disable(atkbd); 1182 1183 if (atkbd->write) { 1184 if (atkbd_probe(atkbd)) 1185 goto out; 1186 1187 if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra)) 1188 goto out; 1189 1190 atkbd_activate(atkbd); 1191 1192 /* 1193 * Restore LED state and repeat rate. While input core 1194 * will do this for us at resume time reconnect may happen 1195 * because user requested it via sysfs or simply because 1196 * keyboard was unplugged and plugged in again so we need 1197 * to do it ourselves here. 1198 */ 1199 atkbd_set_leds(atkbd); 1200 if (!atkbd->softrepeat) 1201 atkbd_set_repeat_rate(atkbd); 1202 1203 } 1204 1205 atkbd_enable(atkbd); 1206 retval = 0; 1207 1208 out: 1209 mutex_unlock(&atkbd->mutex); 1210 return retval; 1211 } 1212 1213 static struct serio_device_id atkbd_serio_ids[] = { 1214 { 1215 .type = SERIO_8042, 1216 .proto = SERIO_ANY, 1217 .id = SERIO_ANY, 1218 .extra = SERIO_ANY, 1219 }, 1220 { 1221 .type = SERIO_8042_XL, 1222 .proto = SERIO_ANY, 1223 .id = SERIO_ANY, 1224 .extra = SERIO_ANY, 1225 }, 1226 { 1227 .type = SERIO_RS232, 1228 .proto = SERIO_PS2SER, 1229 .id = SERIO_ANY, 1230 .extra = SERIO_ANY, 1231 }, 1232 { 0 } 1233 }; 1234 1235 MODULE_DEVICE_TABLE(serio, atkbd_serio_ids); 1236 1237 static struct serio_driver atkbd_drv = { 1238 .driver = { 1239 .name = "atkbd", 1240 }, 1241 .description = DRIVER_DESC, 1242 .id_table = atkbd_serio_ids, 1243 .interrupt = atkbd_interrupt, 1244 .connect = atkbd_connect, 1245 .reconnect = atkbd_reconnect, 1246 .disconnect = atkbd_disconnect, 1247 .cleanup = atkbd_cleanup, 1248 }; 1249 1250 static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf, 1251 ssize_t (*handler)(struct atkbd *, char *)) 1252 { 1253 struct serio *serio = to_serio_port(dev); 1254 struct atkbd *atkbd = serio_get_drvdata(serio); 1255 1256 return handler(atkbd, buf); 1257 } 1258 1259 static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count, 1260 ssize_t (*handler)(struct atkbd *, const char *, size_t)) 1261 { 1262 struct serio *serio = to_serio_port(dev); 1263 struct atkbd *atkbd = serio_get_drvdata(serio); 1264 int retval; 1265 1266 retval = mutex_lock_interruptible(&atkbd->mutex); 1267 if (retval) 1268 return retval; 1269 1270 atkbd_disable(atkbd); 1271 retval = handler(atkbd, buf, count); 1272 atkbd_enable(atkbd); 1273 1274 mutex_unlock(&atkbd->mutex); 1275 1276 return retval; 1277 } 1278 1279 static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf) 1280 { 1281 return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0); 1282 } 1283 1284 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count) 1285 { 1286 struct input_dev *old_dev, *new_dev; 1287 unsigned long value; 1288 int err; 1289 unsigned char old_extra, old_set; 1290 1291 if (!atkbd->write) 1292 return -EIO; 1293 1294 if (strict_strtoul(buf, 10, &value) || value > 1) 1295 return -EINVAL; 1296 1297 if (atkbd->extra != value) { 1298 /* 1299 * Since device's properties will change we need to 1300 * unregister old device. But allocate and register 1301 * new one first to make sure we have it. 1302 */ 1303 old_dev = atkbd->dev; 1304 old_extra = atkbd->extra; 1305 old_set = atkbd->set; 1306 1307 new_dev = input_allocate_device(); 1308 if (!new_dev) 1309 return -ENOMEM; 1310 1311 atkbd->dev = new_dev; 1312 atkbd->set = atkbd_select_set(atkbd, atkbd->set, value); 1313 atkbd_reset_state(atkbd); 1314 atkbd_activate(atkbd); 1315 atkbd_set_keycode_table(atkbd); 1316 atkbd_set_device_attrs(atkbd); 1317 1318 err = input_register_device(atkbd->dev); 1319 if (err) { 1320 input_free_device(new_dev); 1321 1322 atkbd->dev = old_dev; 1323 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra); 1324 atkbd_set_keycode_table(atkbd); 1325 atkbd_set_device_attrs(atkbd); 1326 1327 return err; 1328 } 1329 input_unregister_device(old_dev); 1330 1331 } 1332 return count; 1333 } 1334 1335 static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf) 1336 { 1337 size_t len = bitmap_scnlistprintf(buf, PAGE_SIZE - 2, 1338 atkbd->force_release_mask, ATKBD_KEYMAP_SIZE); 1339 1340 buf[len++] = '\n'; 1341 buf[len] = '\0'; 1342 1343 return len; 1344 } 1345 1346 static ssize_t atkbd_set_force_release(struct atkbd *atkbd, 1347 const char *buf, size_t count) 1348 { 1349 /* 64 bytes on stack should be acceptable */ 1350 DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE); 1351 int err; 1352 1353 err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE); 1354 if (err) 1355 return err; 1356 1357 memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask)); 1358 return count; 1359 } 1360 1361 1362 static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf) 1363 { 1364 return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0); 1365 } 1366 1367 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count) 1368 { 1369 struct input_dev *old_dev, *new_dev; 1370 unsigned long value; 1371 int err; 1372 unsigned char old_scroll; 1373 1374 if (strict_strtoul(buf, 10, &value) || value > 1) 1375 return -EINVAL; 1376 1377 if (atkbd->scroll != value) { 1378 old_dev = atkbd->dev; 1379 old_scroll = atkbd->scroll; 1380 1381 new_dev = input_allocate_device(); 1382 if (!new_dev) 1383 return -ENOMEM; 1384 1385 atkbd->dev = new_dev; 1386 atkbd->scroll = value; 1387 atkbd_set_keycode_table(atkbd); 1388 atkbd_set_device_attrs(atkbd); 1389 1390 err = input_register_device(atkbd->dev); 1391 if (err) { 1392 input_free_device(new_dev); 1393 1394 atkbd->scroll = old_scroll; 1395 atkbd->dev = old_dev; 1396 atkbd_set_keycode_table(atkbd); 1397 atkbd_set_device_attrs(atkbd); 1398 1399 return err; 1400 } 1401 input_unregister_device(old_dev); 1402 } 1403 return count; 1404 } 1405 1406 static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf) 1407 { 1408 return sprintf(buf, "%d\n", atkbd->set); 1409 } 1410 1411 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count) 1412 { 1413 struct input_dev *old_dev, *new_dev; 1414 unsigned long value; 1415 int err; 1416 unsigned char old_set, old_extra; 1417 1418 if (!atkbd->write) 1419 return -EIO; 1420 1421 if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3)) 1422 return -EINVAL; 1423 1424 if (atkbd->set != value) { 1425 old_dev = atkbd->dev; 1426 old_extra = atkbd->extra; 1427 old_set = atkbd->set; 1428 1429 new_dev = input_allocate_device(); 1430 if (!new_dev) 1431 return -ENOMEM; 1432 1433 atkbd->dev = new_dev; 1434 atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra); 1435 atkbd_reset_state(atkbd); 1436 atkbd_activate(atkbd); 1437 atkbd_set_keycode_table(atkbd); 1438 atkbd_set_device_attrs(atkbd); 1439 1440 err = input_register_device(atkbd->dev); 1441 if (err) { 1442 input_free_device(new_dev); 1443 1444 atkbd->dev = old_dev; 1445 atkbd->set = atkbd_select_set(atkbd, old_set, old_extra); 1446 atkbd_set_keycode_table(atkbd); 1447 atkbd_set_device_attrs(atkbd); 1448 1449 return err; 1450 } 1451 input_unregister_device(old_dev); 1452 } 1453 return count; 1454 } 1455 1456 static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf) 1457 { 1458 return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0); 1459 } 1460 1461 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count) 1462 { 1463 struct input_dev *old_dev, *new_dev; 1464 unsigned long value; 1465 int err; 1466 unsigned char old_softrepeat, old_softraw; 1467 1468 if (!atkbd->write) 1469 return -EIO; 1470 1471 if (strict_strtoul(buf, 10, &value) || value > 1) 1472 return -EINVAL; 1473 1474 if (atkbd->softrepeat != value) { 1475 old_dev = atkbd->dev; 1476 old_softrepeat = atkbd->softrepeat; 1477 old_softraw = atkbd->softraw; 1478 1479 new_dev = input_allocate_device(); 1480 if (!new_dev) 1481 return -ENOMEM; 1482 1483 atkbd->dev = new_dev; 1484 atkbd->softrepeat = value; 1485 if (atkbd->softrepeat) 1486 atkbd->softraw = 1; 1487 atkbd_set_device_attrs(atkbd); 1488 1489 err = input_register_device(atkbd->dev); 1490 if (err) { 1491 input_free_device(new_dev); 1492 1493 atkbd->dev = old_dev; 1494 atkbd->softrepeat = old_softrepeat; 1495 atkbd->softraw = old_softraw; 1496 atkbd_set_device_attrs(atkbd); 1497 1498 return err; 1499 } 1500 input_unregister_device(old_dev); 1501 } 1502 return count; 1503 } 1504 1505 1506 static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf) 1507 { 1508 return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0); 1509 } 1510 1511 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count) 1512 { 1513 struct input_dev *old_dev, *new_dev; 1514 unsigned long value; 1515 int err; 1516 unsigned char old_softraw; 1517 1518 if (strict_strtoul(buf, 10, &value) || value > 1) 1519 return -EINVAL; 1520 1521 if (atkbd->softraw != value) { 1522 old_dev = atkbd->dev; 1523 old_softraw = atkbd->softraw; 1524 1525 new_dev = input_allocate_device(); 1526 if (!new_dev) 1527 return -ENOMEM; 1528 1529 atkbd->dev = new_dev; 1530 atkbd->softraw = value; 1531 atkbd_set_device_attrs(atkbd); 1532 1533 err = input_register_device(atkbd->dev); 1534 if (err) { 1535 input_free_device(new_dev); 1536 1537 atkbd->dev = old_dev; 1538 atkbd->softraw = old_softraw; 1539 atkbd_set_device_attrs(atkbd); 1540 1541 return err; 1542 } 1543 input_unregister_device(old_dev); 1544 } 1545 return count; 1546 } 1547 1548 static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf) 1549 { 1550 return sprintf(buf, "%lu\n", atkbd->err_count); 1551 } 1552 1553 static int __init atkbd_setup_forced_release(const struct dmi_system_id *id) 1554 { 1555 atkbd_platform_fixup = atkbd_apply_forced_release_keylist; 1556 atkbd_platform_fixup_data = id->driver_data; 1557 1558 return 0; 1559 } 1560 1561 static int __init atkbd_setup_scancode_fixup(const struct dmi_system_id *id) 1562 { 1563 atkbd_platform_scancode_fixup = id->driver_data; 1564 1565 return 0; 1566 } 1567 1568 static const struct dmi_system_id atkbd_dmi_quirk_table[] __initconst = { 1569 { 1570 .matches = { 1571 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 1572 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */ 1573 }, 1574 .callback = atkbd_setup_forced_release, 1575 .driver_data = atkbd_dell_laptop_forced_release_keys, 1576 }, 1577 { 1578 .matches = { 1579 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"), 1580 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */ 1581 }, 1582 .callback = atkbd_setup_forced_release, 1583 .driver_data = atkbd_dell_laptop_forced_release_keys, 1584 }, 1585 { 1586 .matches = { 1587 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1588 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"), 1589 }, 1590 .callback = atkbd_setup_forced_release, 1591 .driver_data = atkbd_hp_forced_release_keys, 1592 }, 1593 { 1594 .matches = { 1595 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1596 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"), 1597 }, 1598 .callback = atkbd_setup_forced_release, 1599 .driver_data = atkbd_volume_forced_release_keys, 1600 }, 1601 { 1602 .matches = { 1603 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1604 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"), 1605 }, 1606 .callback = atkbd_setup_forced_release, 1607 .driver_data = atkbd_volume_forced_release_keys, 1608 }, 1609 { 1610 .matches = { 1611 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1612 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"), 1613 }, 1614 .callback = atkbd_setup_forced_release, 1615 .driver_data = atkbd_volume_forced_release_keys, 1616 }, 1617 { 1618 .matches = { 1619 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1620 DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"), 1621 }, 1622 .callback = atkbd_setup_forced_release, 1623 .driver_data = atkbd_volume_forced_release_keys, 1624 }, 1625 { 1626 /* Inventec Symphony */ 1627 .matches = { 1628 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"), 1629 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"), 1630 }, 1631 .callback = atkbd_setup_forced_release, 1632 .driver_data = atkbd_volume_forced_release_keys, 1633 }, 1634 { 1635 /* Samsung NC10 */ 1636 .matches = { 1637 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), 1638 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"), 1639 }, 1640 .callback = atkbd_setup_forced_release, 1641 .driver_data = atkbd_samsung_forced_release_keys, 1642 }, 1643 { 1644 /* Samsung NC20 */ 1645 .matches = { 1646 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), 1647 DMI_MATCH(DMI_PRODUCT_NAME, "NC20"), 1648 }, 1649 .callback = atkbd_setup_forced_release, 1650 .driver_data = atkbd_samsung_forced_release_keys, 1651 }, 1652 { 1653 /* Samsung SQ45S70S */ 1654 .matches = { 1655 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), 1656 DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"), 1657 }, 1658 .callback = atkbd_setup_forced_release, 1659 .driver_data = atkbd_samsung_forced_release_keys, 1660 }, 1661 { 1662 /* Fujitsu Amilo PA 1510 */ 1663 .matches = { 1664 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 1665 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"), 1666 }, 1667 .callback = atkbd_setup_forced_release, 1668 .driver_data = atkbd_volume_forced_release_keys, 1669 }, 1670 { 1671 /* Fujitsu Amilo Pi 3525 */ 1672 .matches = { 1673 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 1674 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"), 1675 }, 1676 .callback = atkbd_setup_forced_release, 1677 .driver_data = atkbd_amilo_pi3525_forced_release_keys, 1678 }, 1679 { 1680 /* Fujitsu Amilo Xi 3650 */ 1681 .matches = { 1682 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 1683 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"), 1684 }, 1685 .callback = atkbd_setup_forced_release, 1686 .driver_data = atkbd_amilo_xi3650_forced_release_keys, 1687 }, 1688 { 1689 .matches = { 1690 DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"), 1691 DMI_MATCH(DMI_PRODUCT_NAME, "TA12"), 1692 }, 1693 .callback = atkbd_setup_forced_release, 1694 .driver_data = atkdb_soltech_ta12_forced_release_keys, 1695 }, 1696 { 1697 /* OQO Model 01+ */ 1698 .matches = { 1699 DMI_MATCH(DMI_SYS_VENDOR, "OQO"), 1700 DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"), 1701 }, 1702 .callback = atkbd_setup_scancode_fixup, 1703 .driver_data = atkbd_oqo_01plus_scancode_fixup, 1704 }, 1705 { } 1706 }; 1707 1708 static int __init atkbd_init(void) 1709 { 1710 dmi_check_system(atkbd_dmi_quirk_table); 1711 1712 return serio_register_driver(&atkbd_drv); 1713 } 1714 1715 static void __exit atkbd_exit(void) 1716 { 1717 serio_unregister_driver(&atkbd_drv); 1718 } 1719 1720 module_init(atkbd_init); 1721 module_exit(atkbd_exit); 1722