1 /*-*-linux-c-*-*/ 2 3 /* 4 Copyright (C) 2008 Cezary Jackiewicz <cezary.jackiewicz (at) gmail.com> 5 6 based on MSI driver 7 8 Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) de> 9 10 This program is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 2 of the License, or 13 (at your option) any later version. 14 15 This program is distributed in the hope that it will be useful, but 16 WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 General Public License for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program; if not, write to the Free Software 22 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 23 02110-1301, USA. 24 */ 25 26 /* 27 * compal-laptop.c - Compal laptop support. 28 * 29 * This driver exports a few files in /sys/devices/platform/compal-laptop/: 30 * wake_up_XXX Whether or not we listen to such wake up events (rw) 31 * 32 * In addition to these platform device attributes the driver 33 * registers itself in the Linux backlight control, power_supply, rfkill 34 * and hwmon subsystem and is available to userspace under: 35 * 36 * /sys/class/backlight/compal-laptop/ 37 * /sys/class/power_supply/compal-laptop/ 38 * /sys/class/rfkill/rfkillX/ 39 * /sys/class/hwmon/hwmonX/ 40 * 41 * Notes on the power_supply battery interface: 42 * - the "minimum" design voltage is *the* design voltage 43 * - the ambient temperature is the average battery temperature 44 * and the value is an educated guess (see commented code below) 45 * 46 * 47 * This driver might work on other laptops produced by Compal. If you 48 * want to try it you can pass force=1 as argument to the module which 49 * will force it to load even when the DMI data doesn't identify the 50 * laptop as compatible. 51 * 52 * Lots of data available at: 53 * http://service1.marasst.com/Compal/JHL90_91/Service%20Manual/ 54 * JHL90%20service%20manual-Final-0725.pdf 55 * 56 * 57 * 58 * Support for the Compal JHL90 added by Roald Frederickx 59 * (roald.frederickx@gmail.com): 60 * Driver got large revision. Added functionalities: backlight 61 * power, wake_on_XXX, a hwmon and power_supply interface. 62 * 63 * In case this gets merged into the kernel source: I want to dedicate this 64 * to Kasper Meerts, the awesome guy who showed me Linux and C! 65 */ 66 67 /* NOTE: currently the wake_on_XXX, hwmon and power_supply interfaces are 68 * only enabled on a JHL90 board until it is verified that they work on the 69 * other boards too. See the extra_features variable. */ 70 71 #include <linux/module.h> 72 #include <linux/kernel.h> 73 #include <linux/init.h> 74 #include <linux/acpi.h> 75 #include <linux/dmi.h> 76 #include <linux/backlight.h> 77 #include <linux/platform_device.h> 78 #include <linux/rfkill.h> 79 #include <linux/hwmon.h> 80 #include <linux/hwmon-sysfs.h> 81 #include <linux/power_supply.h> 82 #include <linux/fb.h> 83 84 85 /* ======= */ 86 /* Defines */ 87 /* ======= */ 88 #define DRIVER_NAME "compal-laptop" 89 #define DRIVER_VERSION "0.2.7" 90 91 #define BACKLIGHT_LEVEL_ADDR 0xB9 92 #define BACKLIGHT_LEVEL_MAX 7 93 #define BACKLIGHT_STATE_ADDR 0x59 94 #define BACKLIGHT_STATE_ON_DATA 0xE1 95 #define BACKLIGHT_STATE_OFF_DATA 0xE2 96 97 #define WAKE_UP_ADDR 0xA4 98 #define WAKE_UP_PME (1 << 0) 99 #define WAKE_UP_MODEM (1 << 1) 100 #define WAKE_UP_LAN (1 << 2) 101 #define WAKE_UP_WLAN (1 << 4) 102 #define WAKE_UP_KEY (1 << 6) 103 #define WAKE_UP_MOUSE (1 << 7) 104 105 #define WIRELESS_ADDR 0xBB 106 #define WIRELESS_WLAN (1 << 0) 107 #define WIRELESS_BT (1 << 1) 108 #define WIRELESS_WLAN_EXISTS (1 << 2) 109 #define WIRELESS_BT_EXISTS (1 << 3) 110 #define WIRELESS_KILLSWITCH (1 << 4) 111 112 #define PWM_ADDRESS 0x46 113 #define PWM_DISABLE_ADDR 0x59 114 #define PWM_DISABLE_DATA 0xA5 115 #define PWM_ENABLE_ADDR 0x59 116 #define PWM_ENABLE_DATA 0xA8 117 118 #define FAN_ADDRESS 0x46 119 #define FAN_DATA 0x81 120 #define FAN_FULL_ON_CMD 0x59 /* Doesn't seem to work. Just */ 121 #define FAN_FULL_ON_ENABLE 0x76 /* force the pwm signal to its */ 122 #define FAN_FULL_ON_DISABLE 0x77 /* maximum value instead */ 123 124 #define TEMP_CPU 0xB0 125 #define TEMP_CPU_LOCAL 0xB1 126 #define TEMP_CPU_DTS 0xB5 127 #define TEMP_NORTHBRIDGE 0xB6 128 #define TEMP_VGA 0xB4 129 #define TEMP_SKIN 0xB2 130 131 #define BAT_MANUFACTURER_NAME_ADDR 0x10 132 #define BAT_MANUFACTURER_NAME_LEN 9 133 #define BAT_MODEL_NAME_ADDR 0x19 134 #define BAT_MODEL_NAME_LEN 6 135 #define BAT_SERIAL_NUMBER_ADDR 0xC4 136 #define BAT_SERIAL_NUMBER_LEN 5 137 #define BAT_CHARGE_NOW 0xC2 138 #define BAT_CHARGE_DESIGN 0xCA 139 #define BAT_VOLTAGE_NOW 0xC6 140 #define BAT_VOLTAGE_DESIGN 0xC8 141 #define BAT_CURRENT_NOW 0xD0 142 #define BAT_CURRENT_AVG 0xD2 143 #define BAT_POWER 0xD4 144 #define BAT_CAPACITY 0xCE 145 #define BAT_TEMP 0xD6 146 #define BAT_TEMP_AVG 0xD7 147 #define BAT_STATUS0 0xC1 148 #define BAT_STATUS1 0xF0 149 #define BAT_STATUS2 0xF1 150 #define BAT_STOP_CHARGE1 0xF2 151 #define BAT_STOP_CHARGE2 0xF3 152 153 #define BAT_S0_DISCHARGE (1 << 0) 154 #define BAT_S0_DISCHRG_CRITICAL (1 << 2) 155 #define BAT_S0_LOW (1 << 3) 156 #define BAT_S0_CHARGING (1 << 1) 157 #define BAT_S0_AC (1 << 7) 158 #define BAT_S1_EXISTS (1 << 0) 159 #define BAT_S1_FULL (1 << 1) 160 #define BAT_S1_EMPTY (1 << 2) 161 #define BAT_S1_LiION_OR_NiMH (1 << 7) 162 #define BAT_S2_LOW_LOW (1 << 0) 163 #define BAT_STOP_CHRG1_BAD_CELL (1 << 1) 164 #define BAT_STOP_CHRG1_COMM_FAIL (1 << 2) 165 #define BAT_STOP_CHRG1_OVERVOLTAGE (1 << 6) 166 #define BAT_STOP_CHRG1_OVERTEMPERATURE (1 << 7) 167 168 169 /* ======= */ 170 /* Structs */ 171 /* ======= */ 172 struct compal_data{ 173 /* Fan control */ 174 struct device *hwmon_dev; 175 int pwm_enable; /* 0:full on, 1:set by pwm1, 2:control by moterboard */ 176 unsigned char curr_pwm; 177 178 /* Power supply */ 179 struct power_supply psy; 180 struct power_supply_info psy_info; 181 char bat_model_name[BAT_MODEL_NAME_LEN + 1]; 182 char bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN + 1]; 183 char bat_serial_number[BAT_SERIAL_NUMBER_LEN + 1]; 184 }; 185 186 187 /* =============== */ 188 /* General globals */ 189 /* =============== */ 190 static int force; 191 module_param(force, bool, 0); 192 MODULE_PARM_DESC(force, "Force driver load, ignore DMI data"); 193 194 /* Support for the wake_on_XXX, hwmon and power_supply interface. Currently 195 * only gets enabled on a JHL90 board. Might work with the others too */ 196 static bool extra_features; 197 198 /* Nasty stuff. For some reason the fan control is very un-linear. I've 199 * come up with these values by looping through the possible inputs and 200 * watching the output of address 0x4F (do an ec_transaction writing 0x33 201 * into 0x4F and read a few bytes from the output, like so: 202 * u8 writeData = 0x33; 203 * ec_transaction(0x4F, &writeData, 1, buffer, 32, 0); 204 * That address is labled "fan1 table information" in the service manual. 205 * It should be clear which value in 'buffer' changes). This seems to be 206 * related to fan speed. It isn't a proper 'realtime' fan speed value 207 * though, because physically stopping or speeding up the fan doesn't 208 * change it. It might be the average voltage or current of the pwm output. 209 * Nevertheless, it is more fine-grained than the actual RPM reading */ 210 static const unsigned char pwm_lookup_table[256] = { 211 0, 0, 0, 1, 1, 1, 2, 253, 254, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 212 7, 7, 7, 8, 86, 86, 9, 9, 9, 10, 10, 10, 11, 92, 92, 12, 12, 95, 213 13, 66, 66, 14, 14, 98, 15, 15, 15, 16, 16, 67, 17, 17, 72, 18, 70, 214 75, 19, 90, 90, 73, 73, 73, 21, 21, 91, 91, 91, 96, 23, 94, 94, 94, 215 94, 94, 94, 94, 94, 94, 94, 141, 141, 238, 223, 192, 139, 139, 139, 216 139, 139, 142, 142, 142, 142, 142, 78, 78, 78, 78, 78, 76, 76, 76, 217 76, 76, 79, 79, 79, 79, 79, 79, 79, 20, 20, 20, 20, 20, 22, 22, 22, 218 22, 22, 24, 24, 24, 24, 24, 24, 219, 219, 219, 219, 219, 219, 219, 219 219, 27, 27, 188, 188, 28, 28, 28, 29, 186, 186, 186, 186, 186, 220 186, 186, 186, 186, 186, 31, 31, 31, 31, 31, 32, 32, 32, 41, 33, 221 33, 33, 33, 33, 252, 252, 34, 34, 34, 43, 35, 35, 35, 36, 36, 38, 222 206, 206, 206, 206, 206, 206, 206, 206, 206, 37, 37, 37, 46, 46, 223 47, 47, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 48, 48, 224 48, 48, 48, 40, 40, 40, 49, 42, 42, 42, 42, 42, 42, 42, 42, 44, 225 189, 189, 189, 189, 54, 54, 45, 45, 45, 45, 45, 45, 45, 45, 251, 226 191, 199, 199, 199, 199, 199, 215, 215, 215, 215, 187, 187, 187, 227 187, 187, 193, 50 228 }; 229 230 231 232 233 /* ========================= */ 234 /* Hardware access functions */ 235 /* ========================= */ 236 /* General access */ 237 static u8 ec_read_u8(u8 addr) 238 { 239 u8 value; 240 ec_read(addr, &value); 241 return value; 242 } 243 244 static s8 ec_read_s8(u8 addr) 245 { 246 return (s8)ec_read_u8(addr); 247 } 248 249 static u16 ec_read_u16(u8 addr) 250 { 251 int hi, lo; 252 lo = ec_read_u8(addr); 253 hi = ec_read_u8(addr + 1); 254 return (hi << 8) + lo; 255 } 256 257 static s16 ec_read_s16(u8 addr) 258 { 259 return (s16) ec_read_u16(addr); 260 } 261 262 static void ec_read_sequence(u8 addr, u8 *buf, int len) 263 { 264 int i; 265 for (i = 0; i < len; i++) 266 ec_read(addr + i, buf + i); 267 } 268 269 270 /* Backlight access */ 271 static int set_backlight_level(int level) 272 { 273 if (level < 0 || level > BACKLIGHT_LEVEL_MAX) 274 return -EINVAL; 275 276 ec_write(BACKLIGHT_LEVEL_ADDR, level); 277 278 return 1; 279 } 280 281 static int get_backlight_level(void) 282 { 283 return (int) ec_read_u8(BACKLIGHT_LEVEL_ADDR); 284 } 285 286 static void set_backlight_state(bool on) 287 { 288 u8 data = on ? BACKLIGHT_STATE_ON_DATA : BACKLIGHT_STATE_OFF_DATA; 289 ec_transaction(BACKLIGHT_STATE_ADDR, &data, 1, NULL, 0, 0); 290 } 291 292 293 /* Fan control access */ 294 static void pwm_enable_control(void) 295 { 296 unsigned char writeData = PWM_ENABLE_DATA; 297 ec_transaction(PWM_ENABLE_ADDR, &writeData, 1, NULL, 0, 0); 298 } 299 300 static void pwm_disable_control(void) 301 { 302 unsigned char writeData = PWM_DISABLE_DATA; 303 ec_transaction(PWM_DISABLE_ADDR, &writeData, 1, NULL, 0, 0); 304 } 305 306 static void set_pwm(int pwm) 307 { 308 ec_transaction(PWM_ADDRESS, &pwm_lookup_table[pwm], 1, NULL, 0, 0); 309 } 310 311 static int get_fan_rpm(void) 312 { 313 u8 value, data = FAN_DATA; 314 ec_transaction(FAN_ADDRESS, &data, 1, &value, 1, 0); 315 return 100 * (int)value; 316 } 317 318 319 320 321 /* =================== */ 322 /* Interface functions */ 323 /* =================== */ 324 325 /* Backlight interface */ 326 static int bl_get_brightness(struct backlight_device *b) 327 { 328 return get_backlight_level(); 329 } 330 331 static int bl_update_status(struct backlight_device *b) 332 { 333 int ret = set_backlight_level(b->props.brightness); 334 if (ret) 335 return ret; 336 337 set_backlight_state((b->props.power == FB_BLANK_UNBLANK) 338 && !(b->props.state & BL_CORE_SUSPENDED) 339 && !(b->props.state & BL_CORE_FBBLANK)); 340 return 0; 341 } 342 343 static const struct backlight_ops compalbl_ops = { 344 .get_brightness = bl_get_brightness, 345 .update_status = bl_update_status, 346 }; 347 348 349 /* Wireless interface */ 350 static int compal_rfkill_set(void *data, bool blocked) 351 { 352 unsigned long radio = (unsigned long) data; 353 u8 result = ec_read_u8(WIRELESS_ADDR); 354 u8 value; 355 356 if (!blocked) 357 value = (u8) (result | radio); 358 else 359 value = (u8) (result & ~radio); 360 ec_write(WIRELESS_ADDR, value); 361 362 return 0; 363 } 364 365 static void compal_rfkill_poll(struct rfkill *rfkill, void *data) 366 { 367 u8 result = ec_read_u8(WIRELESS_ADDR); 368 bool hw_blocked = !(result & WIRELESS_KILLSWITCH); 369 rfkill_set_hw_state(rfkill, hw_blocked); 370 } 371 372 static const struct rfkill_ops compal_rfkill_ops = { 373 .poll = compal_rfkill_poll, 374 .set_block = compal_rfkill_set, 375 }; 376 377 378 /* Wake_up interface */ 379 #define SIMPLE_MASKED_STORE_SHOW(NAME, ADDR, MASK) \ 380 static ssize_t NAME##_show(struct device *dev, \ 381 struct device_attribute *attr, char *buf) \ 382 { \ 383 return sprintf(buf, "%d\n", ((ec_read_u8(ADDR) & MASK) != 0)); \ 384 } \ 385 static ssize_t NAME##_store(struct device *dev, \ 386 struct device_attribute *attr, const char *buf, size_t count) \ 387 { \ 388 int state; \ 389 u8 old_val = ec_read_u8(ADDR); \ 390 if (sscanf(buf, "%d", &state) != 1 || (state < 0 || state > 1)) \ 391 return -EINVAL; \ 392 ec_write(ADDR, state ? (old_val | MASK) : (old_val & ~MASK)); \ 393 return count; \ 394 } 395 396 SIMPLE_MASKED_STORE_SHOW(wake_up_pme, WAKE_UP_ADDR, WAKE_UP_PME) 397 SIMPLE_MASKED_STORE_SHOW(wake_up_modem, WAKE_UP_ADDR, WAKE_UP_MODEM) 398 SIMPLE_MASKED_STORE_SHOW(wake_up_lan, WAKE_UP_ADDR, WAKE_UP_LAN) 399 SIMPLE_MASKED_STORE_SHOW(wake_up_wlan, WAKE_UP_ADDR, WAKE_UP_WLAN) 400 SIMPLE_MASKED_STORE_SHOW(wake_up_key, WAKE_UP_ADDR, WAKE_UP_KEY) 401 SIMPLE_MASKED_STORE_SHOW(wake_up_mouse, WAKE_UP_ADDR, WAKE_UP_MOUSE) 402 403 404 /* General hwmon interface */ 405 static ssize_t hwmon_name_show(struct device *dev, 406 struct device_attribute *attr, char *buf) 407 { 408 return sprintf(buf, "%s\n", DRIVER_NAME); 409 } 410 411 412 /* Fan control interface */ 413 static ssize_t pwm_enable_show(struct device *dev, 414 struct device_attribute *attr, char *buf) 415 { 416 struct compal_data *data = dev_get_drvdata(dev); 417 return sprintf(buf, "%d\n", data->pwm_enable); 418 } 419 420 static ssize_t pwm_enable_store(struct device *dev, 421 struct device_attribute *attr, const char *buf, size_t count) 422 { 423 struct compal_data *data = dev_get_drvdata(dev); 424 long val; 425 int err; 426 err = strict_strtol(buf, 10, &val); 427 if (err) 428 return err; 429 if (val < 0) 430 return -EINVAL; 431 432 data->pwm_enable = val; 433 434 switch (val) { 435 case 0: /* Full speed */ 436 pwm_enable_control(); 437 set_pwm(255); 438 break; 439 case 1: /* As set by pwm1 */ 440 pwm_enable_control(); 441 set_pwm(data->curr_pwm); 442 break; 443 default: /* Control by motherboard */ 444 pwm_disable_control(); 445 break; 446 } 447 448 return count; 449 } 450 451 static ssize_t pwm_show(struct device *dev, struct device_attribute *attr, 452 char *buf) 453 { 454 struct compal_data *data = dev_get_drvdata(dev); 455 return sprintf(buf, "%hhu\n", data->curr_pwm); 456 } 457 458 static ssize_t pwm_store(struct device *dev, struct device_attribute *attr, 459 const char *buf, size_t count) 460 { 461 struct compal_data *data = dev_get_drvdata(dev); 462 long val; 463 int err; 464 err = strict_strtol(buf, 10, &val); 465 if (err) 466 return err; 467 if (val < 0 || val > 255) 468 return -EINVAL; 469 470 data->curr_pwm = val; 471 472 if (data->pwm_enable != 1) 473 return count; 474 set_pwm(val); 475 476 return count; 477 } 478 479 static ssize_t fan_show(struct device *dev, struct device_attribute *attr, 480 char *buf) 481 { 482 return sprintf(buf, "%d\n", get_fan_rpm()); 483 } 484 485 486 /* Temperature interface */ 487 #define TEMPERATURE_SHOW_TEMP_AND_LABEL(POSTFIX, ADDRESS, LABEL) \ 488 static ssize_t temp_##POSTFIX(struct device *dev, \ 489 struct device_attribute *attr, char *buf) \ 490 { \ 491 return sprintf(buf, "%d\n", 1000 * (int)ec_read_s8(ADDRESS)); \ 492 } \ 493 static ssize_t label_##POSTFIX(struct device *dev, \ 494 struct device_attribute *attr, char *buf) \ 495 { \ 496 return sprintf(buf, "%s\n", LABEL); \ 497 } 498 499 /* Labels as in service guide */ 500 TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu, TEMP_CPU, "CPU_TEMP"); 501 TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu_local, TEMP_CPU_LOCAL, "CPU_TEMP_LOCAL"); 502 TEMPERATURE_SHOW_TEMP_AND_LABEL(cpu_DTS, TEMP_CPU_DTS, "CPU_DTS"); 503 TEMPERATURE_SHOW_TEMP_AND_LABEL(northbridge,TEMP_NORTHBRIDGE,"NorthBridge"); 504 TEMPERATURE_SHOW_TEMP_AND_LABEL(vga, TEMP_VGA, "VGA_TEMP"); 505 TEMPERATURE_SHOW_TEMP_AND_LABEL(SKIN, TEMP_SKIN, "SKIN_TEMP90"); 506 507 508 /* Power supply interface */ 509 static int bat_status(void) 510 { 511 u8 status0 = ec_read_u8(BAT_STATUS0); 512 u8 status1 = ec_read_u8(BAT_STATUS1); 513 514 if (status0 & BAT_S0_CHARGING) 515 return POWER_SUPPLY_STATUS_CHARGING; 516 if (status0 & BAT_S0_DISCHARGE) 517 return POWER_SUPPLY_STATUS_DISCHARGING; 518 if (status1 & BAT_S1_FULL) 519 return POWER_SUPPLY_STATUS_FULL; 520 return POWER_SUPPLY_STATUS_NOT_CHARGING; 521 } 522 523 static int bat_health(void) 524 { 525 u8 status = ec_read_u8(BAT_STOP_CHARGE1); 526 527 if (status & BAT_STOP_CHRG1_OVERTEMPERATURE) 528 return POWER_SUPPLY_HEALTH_OVERHEAT; 529 if (status & BAT_STOP_CHRG1_OVERVOLTAGE) 530 return POWER_SUPPLY_HEALTH_OVERVOLTAGE; 531 if (status & BAT_STOP_CHRG1_BAD_CELL) 532 return POWER_SUPPLY_HEALTH_DEAD; 533 if (status & BAT_STOP_CHRG1_COMM_FAIL) 534 return POWER_SUPPLY_HEALTH_UNKNOWN; 535 return POWER_SUPPLY_HEALTH_GOOD; 536 } 537 538 static int bat_is_present(void) 539 { 540 u8 status = ec_read_u8(BAT_STATUS2); 541 return ((status & BAT_S1_EXISTS) != 0); 542 } 543 544 static int bat_technology(void) 545 { 546 u8 status = ec_read_u8(BAT_STATUS1); 547 548 if (status & BAT_S1_LiION_OR_NiMH) 549 return POWER_SUPPLY_TECHNOLOGY_LION; 550 return POWER_SUPPLY_TECHNOLOGY_NiMH; 551 } 552 553 static int bat_capacity_level(void) 554 { 555 u8 status0 = ec_read_u8(BAT_STATUS0); 556 u8 status1 = ec_read_u8(BAT_STATUS1); 557 u8 status2 = ec_read_u8(BAT_STATUS2); 558 559 if (status0 & BAT_S0_DISCHRG_CRITICAL 560 || status1 & BAT_S1_EMPTY 561 || status2 & BAT_S2_LOW_LOW) 562 return POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL; 563 if (status0 & BAT_S0_LOW) 564 return POWER_SUPPLY_CAPACITY_LEVEL_LOW; 565 if (status1 & BAT_S1_FULL) 566 return POWER_SUPPLY_CAPACITY_LEVEL_FULL; 567 return POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; 568 } 569 570 static int bat_get_property(struct power_supply *psy, 571 enum power_supply_property psp, 572 union power_supply_propval *val) 573 { 574 struct compal_data *data; 575 data = container_of(psy, struct compal_data, psy); 576 577 switch (psp) { 578 case POWER_SUPPLY_PROP_STATUS: 579 val->intval = bat_status(); 580 break; 581 case POWER_SUPPLY_PROP_HEALTH: 582 val->intval = bat_health(); 583 break; 584 case POWER_SUPPLY_PROP_PRESENT: 585 val->intval = bat_is_present(); 586 break; 587 case POWER_SUPPLY_PROP_TECHNOLOGY: 588 val->intval = bat_technology(); 589 break; 590 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: /* THE design voltage... */ 591 val->intval = ec_read_u16(BAT_VOLTAGE_DESIGN) * 1000; 592 break; 593 case POWER_SUPPLY_PROP_VOLTAGE_NOW: 594 val->intval = ec_read_u16(BAT_VOLTAGE_NOW) * 1000; 595 break; 596 case POWER_SUPPLY_PROP_CURRENT_NOW: 597 val->intval = ec_read_s16(BAT_CURRENT_NOW) * 1000; 598 break; 599 case POWER_SUPPLY_PROP_CURRENT_AVG: 600 val->intval = ec_read_s16(BAT_CURRENT_AVG) * 1000; 601 break; 602 case POWER_SUPPLY_PROP_POWER_NOW: 603 val->intval = ec_read_u8(BAT_POWER) * 1000000; 604 break; 605 case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: 606 val->intval = ec_read_u16(BAT_CHARGE_DESIGN) * 1000; 607 break; 608 case POWER_SUPPLY_PROP_CHARGE_NOW: 609 val->intval = ec_read_u16(BAT_CHARGE_NOW) * 1000; 610 break; 611 case POWER_SUPPLY_PROP_CAPACITY: 612 val->intval = ec_read_u8(BAT_CAPACITY); 613 break; 614 case POWER_SUPPLY_PROP_CAPACITY_LEVEL: 615 val->intval = bat_capacity_level(); 616 break; 617 /* It smees that BAT_TEMP_AVG is a (2's complement?) value showing 618 * the number of degrees, whereas BAT_TEMP is somewhat more 619 * complicated. It looks like this is a negative nember with a 620 * 100/256 divider and an offset of 222. Both were determined 621 * experimentally by comparing BAT_TEMP and BAT_TEMP_AVG. */ 622 case POWER_SUPPLY_PROP_TEMP: 623 val->intval = ((222 - (int)ec_read_u8(BAT_TEMP)) * 1000) >> 8; 624 break; 625 case POWER_SUPPLY_PROP_TEMP_AMBIENT: /* Ambient, Avg, ... same thing */ 626 val->intval = ec_read_s8(BAT_TEMP_AVG) * 10; 627 break; 628 /* Neither the model name nor manufacturer name work for me. */ 629 case POWER_SUPPLY_PROP_MODEL_NAME: 630 val->strval = data->bat_model_name; 631 break; 632 case POWER_SUPPLY_PROP_MANUFACTURER: 633 val->strval = data->bat_manufacturer_name; 634 break; 635 case POWER_SUPPLY_PROP_SERIAL_NUMBER: 636 val->strval = data->bat_serial_number; 637 break; 638 default: 639 break; 640 } 641 return 0; 642 } 643 644 645 646 647 648 /* ============== */ 649 /* Driver Globals */ 650 /* ============== */ 651 static DEVICE_ATTR(wake_up_pme, 652 0644, wake_up_pme_show, wake_up_pme_store); 653 static DEVICE_ATTR(wake_up_modem, 654 0644, wake_up_modem_show, wake_up_modem_store); 655 static DEVICE_ATTR(wake_up_lan, 656 0644, wake_up_lan_show, wake_up_lan_store); 657 static DEVICE_ATTR(wake_up_wlan, 658 0644, wake_up_wlan_show, wake_up_wlan_store); 659 static DEVICE_ATTR(wake_up_key, 660 0644, wake_up_key_show, wake_up_key_store); 661 static DEVICE_ATTR(wake_up_mouse, 662 0644, wake_up_mouse_show, wake_up_mouse_store); 663 664 static SENSOR_DEVICE_ATTR(name, S_IRUGO, hwmon_name_show, NULL, 1); 665 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, fan_show, NULL, 1); 666 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, temp_cpu, NULL, 1); 667 static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, temp_cpu_local, NULL, 1); 668 static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, temp_cpu_DTS, NULL, 1); 669 static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, temp_northbridge, NULL, 1); 670 static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, temp_vga, NULL, 1); 671 static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, temp_SKIN, NULL, 1); 672 static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, label_cpu, NULL, 1); 673 static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, label_cpu_local, NULL, 1); 674 static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, label_cpu_DTS, NULL, 1); 675 static SENSOR_DEVICE_ATTR(temp4_label, S_IRUGO, label_northbridge, NULL, 1); 676 static SENSOR_DEVICE_ATTR(temp5_label, S_IRUGO, label_vga, NULL, 1); 677 static SENSOR_DEVICE_ATTR(temp6_label, S_IRUGO, label_SKIN, NULL, 1); 678 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, pwm_show, pwm_store, 1); 679 static SENSOR_DEVICE_ATTR(pwm1_enable, 680 S_IRUGO | S_IWUSR, pwm_enable_show, pwm_enable_store, 0); 681 682 static struct attribute *compal_attributes[] = { 683 &dev_attr_wake_up_pme.attr, 684 &dev_attr_wake_up_modem.attr, 685 &dev_attr_wake_up_lan.attr, 686 &dev_attr_wake_up_wlan.attr, 687 &dev_attr_wake_up_key.attr, 688 &dev_attr_wake_up_mouse.attr, 689 /* Maybe put the sensor-stuff in a separate hwmon-driver? That way, 690 * the hwmon sysfs won't be cluttered with the above files. */ 691 &sensor_dev_attr_name.dev_attr.attr, 692 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 693 &sensor_dev_attr_pwm1.dev_attr.attr, 694 &sensor_dev_attr_fan1_input.dev_attr.attr, 695 &sensor_dev_attr_temp1_input.dev_attr.attr, 696 &sensor_dev_attr_temp2_input.dev_attr.attr, 697 &sensor_dev_attr_temp3_input.dev_attr.attr, 698 &sensor_dev_attr_temp4_input.dev_attr.attr, 699 &sensor_dev_attr_temp5_input.dev_attr.attr, 700 &sensor_dev_attr_temp6_input.dev_attr.attr, 701 &sensor_dev_attr_temp1_label.dev_attr.attr, 702 &sensor_dev_attr_temp2_label.dev_attr.attr, 703 &sensor_dev_attr_temp3_label.dev_attr.attr, 704 &sensor_dev_attr_temp4_label.dev_attr.attr, 705 &sensor_dev_attr_temp5_label.dev_attr.attr, 706 &sensor_dev_attr_temp6_label.dev_attr.attr, 707 NULL 708 }; 709 710 static struct attribute_group compal_attribute_group = { 711 .attrs = compal_attributes 712 }; 713 714 static int __devinit compal_probe(struct platform_device *); 715 static int __devexit compal_remove(struct platform_device *); 716 static struct platform_driver compal_driver = { 717 .driver = { 718 .name = DRIVER_NAME, 719 .owner = THIS_MODULE, 720 }, 721 .probe = compal_probe, 722 .remove = __devexit_p(compal_remove) 723 }; 724 725 static enum power_supply_property compal_bat_properties[] = { 726 POWER_SUPPLY_PROP_STATUS, 727 POWER_SUPPLY_PROP_HEALTH, 728 POWER_SUPPLY_PROP_PRESENT, 729 POWER_SUPPLY_PROP_TECHNOLOGY, 730 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, 731 POWER_SUPPLY_PROP_VOLTAGE_NOW, 732 POWER_SUPPLY_PROP_CURRENT_NOW, 733 POWER_SUPPLY_PROP_CURRENT_AVG, 734 POWER_SUPPLY_PROP_POWER_NOW, 735 POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 736 POWER_SUPPLY_PROP_CHARGE_NOW, 737 POWER_SUPPLY_PROP_CAPACITY, 738 POWER_SUPPLY_PROP_CAPACITY_LEVEL, 739 POWER_SUPPLY_PROP_TEMP, 740 POWER_SUPPLY_PROP_TEMP_AMBIENT, 741 POWER_SUPPLY_PROP_MODEL_NAME, 742 POWER_SUPPLY_PROP_MANUFACTURER, 743 POWER_SUPPLY_PROP_SERIAL_NUMBER, 744 }; 745 746 static struct backlight_device *compalbl_device; 747 748 static struct platform_device *compal_device; 749 750 static struct rfkill *wifi_rfkill; 751 static struct rfkill *bt_rfkill; 752 753 754 755 756 757 /* =================================== */ 758 /* Initialization & clean-up functions */ 759 /* =================================== */ 760 761 static int dmi_check_cb(const struct dmi_system_id *id) 762 { 763 printk(KERN_INFO DRIVER_NAME": Identified laptop model '%s'\n", 764 id->ident); 765 extra_features = false; 766 return 0; 767 } 768 769 static int dmi_check_cb_extra(const struct dmi_system_id *id) 770 { 771 printk(KERN_INFO DRIVER_NAME": Identified laptop model '%s', " 772 "enabling extra features\n", 773 id->ident); 774 extra_features = true; 775 return 0; 776 } 777 778 static struct dmi_system_id __initdata compal_dmi_table[] = { 779 { 780 .ident = "FL90/IFL90", 781 .matches = { 782 DMI_MATCH(DMI_BOARD_NAME, "IFL90"), 783 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"), 784 }, 785 .callback = dmi_check_cb 786 }, 787 { 788 .ident = "FL90/IFL90", 789 .matches = { 790 DMI_MATCH(DMI_BOARD_NAME, "IFL90"), 791 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"), 792 }, 793 .callback = dmi_check_cb 794 }, 795 { 796 .ident = "FL91/IFL91", 797 .matches = { 798 DMI_MATCH(DMI_BOARD_NAME, "IFL91"), 799 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"), 800 }, 801 .callback = dmi_check_cb 802 }, 803 { 804 .ident = "FL92/JFL92", 805 .matches = { 806 DMI_MATCH(DMI_BOARD_NAME, "JFL92"), 807 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"), 808 }, 809 .callback = dmi_check_cb 810 }, 811 { 812 .ident = "FT00/IFT00", 813 .matches = { 814 DMI_MATCH(DMI_BOARD_NAME, "IFT00"), 815 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"), 816 }, 817 .callback = dmi_check_cb 818 }, 819 { 820 .ident = "Dell Mini 9", 821 .matches = { 822 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 823 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 910"), 824 }, 825 .callback = dmi_check_cb 826 }, 827 { 828 .ident = "Dell Mini 10", 829 .matches = { 830 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 831 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1010"), 832 }, 833 .callback = dmi_check_cb 834 }, 835 { 836 .ident = "Dell Mini 10v", 837 .matches = { 838 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 839 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1011"), 840 }, 841 .callback = dmi_check_cb 842 }, 843 { 844 .ident = "Dell Mini 1012", 845 .matches = { 846 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 847 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1012"), 848 }, 849 .callback = dmi_check_cb 850 }, 851 { 852 .ident = "Dell Inspiron 11z", 853 .matches = { 854 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 855 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1110"), 856 }, 857 .callback = dmi_check_cb 858 }, 859 { 860 .ident = "Dell Mini 12", 861 .matches = { 862 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 863 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1210"), 864 }, 865 .callback = dmi_check_cb 866 }, 867 { 868 .ident = "JHL90", 869 .matches = { 870 DMI_MATCH(DMI_BOARD_NAME, "JHL90"), 871 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"), 872 }, 873 .callback = dmi_check_cb_extra 874 }, 875 { } 876 }; 877 878 static void initialize_power_supply_data(struct compal_data *data) 879 { 880 data->psy.name = DRIVER_NAME; 881 data->psy.type = POWER_SUPPLY_TYPE_BATTERY; 882 data->psy.properties = compal_bat_properties; 883 data->psy.num_properties = ARRAY_SIZE(compal_bat_properties); 884 data->psy.get_property = bat_get_property; 885 886 ec_read_sequence(BAT_MANUFACTURER_NAME_ADDR, 887 data->bat_manufacturer_name, 888 BAT_MANUFACTURER_NAME_LEN); 889 data->bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN] = 0; 890 891 ec_read_sequence(BAT_MODEL_NAME_ADDR, 892 data->bat_model_name, 893 BAT_MODEL_NAME_LEN); 894 data->bat_model_name[BAT_MODEL_NAME_LEN] = 0; 895 896 scnprintf(data->bat_serial_number, BAT_SERIAL_NUMBER_LEN + 1, "%d", 897 ec_read_u16(BAT_SERIAL_NUMBER_ADDR)); 898 } 899 900 static void initialize_fan_control_data(struct compal_data *data) 901 { 902 data->pwm_enable = 2; /* Keep motherboard in control for now */ 903 data->curr_pwm = 255; /* Try not to cause a CPU_on_fire exception 904 if we take over... */ 905 } 906 907 static int setup_rfkill(void) 908 { 909 int ret; 910 911 wifi_rfkill = rfkill_alloc("compal-wifi", &compal_device->dev, 912 RFKILL_TYPE_WLAN, &compal_rfkill_ops, 913 (void *) WIRELESS_WLAN); 914 if (!wifi_rfkill) 915 return -ENOMEM; 916 917 ret = rfkill_register(wifi_rfkill); 918 if (ret) 919 goto err_wifi; 920 921 bt_rfkill = rfkill_alloc("compal-bluetooth", &compal_device->dev, 922 RFKILL_TYPE_BLUETOOTH, &compal_rfkill_ops, 923 (void *) WIRELESS_BT); 924 if (!bt_rfkill) { 925 ret = -ENOMEM; 926 goto err_allocate_bt; 927 } 928 ret = rfkill_register(bt_rfkill); 929 if (ret) 930 goto err_register_bt; 931 932 return 0; 933 934 err_register_bt: 935 rfkill_destroy(bt_rfkill); 936 937 err_allocate_bt: 938 rfkill_unregister(wifi_rfkill); 939 940 err_wifi: 941 rfkill_destroy(wifi_rfkill); 942 943 return ret; 944 } 945 946 static int __init compal_init(void) 947 { 948 int ret; 949 950 if (acpi_disabled) { 951 printk(KERN_ERR DRIVER_NAME": ACPI needs to be enabled for " 952 "this driver to work!\n"); 953 return -ENODEV; 954 } 955 956 if (!force && !dmi_check_system(compal_dmi_table)) { 957 printk(KERN_ERR DRIVER_NAME": Motherboard not recognized (You " 958 "could try the module's force-parameter)"); 959 return -ENODEV; 960 } 961 962 if (!acpi_video_backlight_support()) { 963 struct backlight_properties props; 964 memset(&props, 0, sizeof(struct backlight_properties)); 965 props.max_brightness = BACKLIGHT_LEVEL_MAX; 966 compalbl_device = backlight_device_register(DRIVER_NAME, 967 NULL, NULL, 968 &compalbl_ops, 969 &props); 970 if (IS_ERR(compalbl_device)) 971 return PTR_ERR(compalbl_device); 972 } 973 974 ret = platform_driver_register(&compal_driver); 975 if (ret) 976 goto err_backlight; 977 978 compal_device = platform_device_alloc(DRIVER_NAME, -1); 979 if (!compal_device) { 980 ret = -ENOMEM; 981 goto err_platform_driver; 982 } 983 984 ret = platform_device_add(compal_device); /* This calls compal_probe */ 985 if (ret) 986 goto err_platform_device; 987 988 ret = setup_rfkill(); 989 if (ret) 990 goto err_rfkill; 991 992 printk(KERN_INFO DRIVER_NAME": Driver "DRIVER_VERSION 993 " successfully loaded\n"); 994 return 0; 995 996 err_rfkill: 997 platform_device_del(compal_device); 998 999 err_platform_device: 1000 platform_device_put(compal_device); 1001 1002 err_platform_driver: 1003 platform_driver_unregister(&compal_driver); 1004 1005 err_backlight: 1006 backlight_device_unregister(compalbl_device); 1007 1008 return ret; 1009 } 1010 1011 static int __devinit compal_probe(struct platform_device *pdev) 1012 { 1013 int err; 1014 struct compal_data *data; 1015 1016 if (!extra_features) 1017 return 0; 1018 1019 /* Fan control */ 1020 data = kzalloc(sizeof(struct compal_data), GFP_KERNEL); 1021 if (!data) 1022 return -ENOMEM; 1023 1024 initialize_fan_control_data(data); 1025 1026 err = sysfs_create_group(&pdev->dev.kobj, &compal_attribute_group); 1027 if (err) 1028 return err; 1029 1030 data->hwmon_dev = hwmon_device_register(&pdev->dev); 1031 if (IS_ERR(data->hwmon_dev)) { 1032 err = PTR_ERR(data->hwmon_dev); 1033 sysfs_remove_group(&pdev->dev.kobj, 1034 &compal_attribute_group); 1035 kfree(data); 1036 return err; 1037 } 1038 1039 /* Power supply */ 1040 initialize_power_supply_data(data); 1041 power_supply_register(&compal_device->dev, &data->psy); 1042 1043 platform_set_drvdata(pdev, data); 1044 1045 return 0; 1046 } 1047 1048 static void __exit compal_cleanup(void) 1049 { 1050 platform_device_unregister(compal_device); 1051 platform_driver_unregister(&compal_driver); 1052 backlight_device_unregister(compalbl_device); 1053 rfkill_unregister(wifi_rfkill); 1054 rfkill_unregister(bt_rfkill); 1055 rfkill_destroy(wifi_rfkill); 1056 rfkill_destroy(bt_rfkill); 1057 1058 printk(KERN_INFO DRIVER_NAME": Driver unloaded\n"); 1059 } 1060 1061 static int __devexit compal_remove(struct platform_device *pdev) 1062 { 1063 struct compal_data *data; 1064 1065 if (!extra_features) 1066 return 0; 1067 1068 printk(KERN_INFO DRIVER_NAME": Unloading: resetting fan control " 1069 "to motherboard\n"); 1070 pwm_disable_control(); 1071 1072 data = platform_get_drvdata(pdev); 1073 hwmon_device_unregister(data->hwmon_dev); 1074 power_supply_unregister(&data->psy); 1075 1076 platform_set_drvdata(pdev, NULL); 1077 kfree(data); 1078 1079 sysfs_remove_group(&pdev->dev.kobj, &compal_attribute_group); 1080 1081 return 0; 1082 } 1083 1084 1085 module_init(compal_init); 1086 module_exit(compal_cleanup); 1087 1088 MODULE_AUTHOR("Cezary Jackiewicz"); 1089 MODULE_AUTHOR("Roald Frederickx (roald.frederickx@gmail.com)"); 1090 MODULE_DESCRIPTION("Compal Laptop Support"); 1091 MODULE_VERSION(DRIVER_VERSION); 1092 MODULE_LICENSE("GPL"); 1093 1094 MODULE_ALIAS("dmi:*:rnIFL90:rvrIFT00:*"); 1095 MODULE_ALIAS("dmi:*:rnIFL90:rvrREFERENCE:*"); 1096 MODULE_ALIAS("dmi:*:rnIFL91:rvrIFT00:*"); 1097 MODULE_ALIAS("dmi:*:rnJFL92:rvrIFT00:*"); 1098 MODULE_ALIAS("dmi:*:rnIFT00:rvrIFT00:*"); 1099 MODULE_ALIAS("dmi:*:rnJHL90:rvrREFERENCE:*"); 1100 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron910:*"); 1101 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1010:*"); 1102 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1011:*"); 1103 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1012:*"); 1104 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1110:*"); 1105 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1210:*"); 1106