1/* 2 * w83792d.c - Part of lm_sensors, Linux kernel modules for hardware 3 * monitoring 4 * Copyright (C) 2004, 2005 Winbond Electronics Corp. 5 * Shane Huang, 6 * Rudolf Marek <r.marek@assembler.cz> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 21 * 22 * Note: 23 * 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver. 24 * 2. This driver is only for Winbond W83792D C version device, there 25 * are also some motherboards with B version W83792D device. The 26 * calculation method to in6-in7(measured value, limits) is a little 27 * different between C and B version. C or B version can be identified 28 * by CR[0x49h]. 29 */ 30 31/* 32 * Supports following chips: 33 * 34 * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA 35 * w83792d 9 7 7 3 0x7a 0x5ca3 yes no 36 */ 37 38#include <linux/module.h> 39#include <linux/init.h> 40#include <linux/slab.h> 41#include <linux/i2c.h> 42#include <linux/hwmon.h> 43#include <linux/hwmon-sysfs.h> 44#include <linux/err.h> 45#include <linux/mutex.h> 46#include <linux/sysfs.h> 47#include <linux/jiffies.h> 48 49/* Addresses to scan */ 50static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, 51 I2C_CLIENT_END }; 52 53/* Insmod parameters */ 54 55static unsigned short force_subclients[4]; 56module_param_array(force_subclients, short, NULL, 0); 57MODULE_PARM_DESC(force_subclients, 58 "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}"); 59 60static bool init; 61module_param(init, bool, 0); 62MODULE_PARM_DESC(init, "Set to one to force chip initialization"); 63 64/* The W83792D registers */ 65static const u8 W83792D_REG_IN[9] = { 66 0x20, /* Vcore A in DataSheet */ 67 0x21, /* Vcore B in DataSheet */ 68 0x22, /* VIN0 in DataSheet */ 69 0x23, /* VIN1 in DataSheet */ 70 0x24, /* VIN2 in DataSheet */ 71 0x25, /* VIN3 in DataSheet */ 72 0x26, /* 5VCC in DataSheet */ 73 0xB0, /* 5VSB in DataSheet */ 74 0xB1 /* VBAT in DataSheet */ 75}; 76#define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */ 77#define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */ 78static const u8 W83792D_REG_IN_MAX[9] = { 79 0x2B, /* Vcore A High Limit in DataSheet */ 80 0x2D, /* Vcore B High Limit in DataSheet */ 81 0x2F, /* VIN0 High Limit in DataSheet */ 82 0x31, /* VIN1 High Limit in DataSheet */ 83 0x33, /* VIN2 High Limit in DataSheet */ 84 0x35, /* VIN3 High Limit in DataSheet */ 85 0x37, /* 5VCC High Limit in DataSheet */ 86 0xB4, /* 5VSB High Limit in DataSheet */ 87 0xB6 /* VBAT High Limit in DataSheet */ 88}; 89static const u8 W83792D_REG_IN_MIN[9] = { 90 0x2C, /* Vcore A Low Limit in DataSheet */ 91 0x2E, /* Vcore B Low Limit in DataSheet */ 92 0x30, /* VIN0 Low Limit in DataSheet */ 93 0x32, /* VIN1 Low Limit in DataSheet */ 94 0x34, /* VIN2 Low Limit in DataSheet */ 95 0x36, /* VIN3 Low Limit in DataSheet */ 96 0x38, /* 5VCC Low Limit in DataSheet */ 97 0xB5, /* 5VSB Low Limit in DataSheet */ 98 0xB7 /* VBAT Low Limit in DataSheet */ 99}; 100static const u8 W83792D_REG_FAN[7] = { 101 0x28, /* FAN 1 Count in DataSheet */ 102 0x29, /* FAN 2 Count in DataSheet */ 103 0x2A, /* FAN 3 Count in DataSheet */ 104 0xB8, /* FAN 4 Count in DataSheet */ 105 0xB9, /* FAN 5 Count in DataSheet */ 106 0xBA, /* FAN 6 Count in DataSheet */ 107 0xBE /* FAN 7 Count in DataSheet */ 108}; 109static const u8 W83792D_REG_FAN_MIN[7] = { 110 0x3B, /* FAN 1 Count Low Limit in DataSheet */ 111 0x3C, /* FAN 2 Count Low Limit in DataSheet */ 112 0x3D, /* FAN 3 Count Low Limit in DataSheet */ 113 0xBB, /* FAN 4 Count Low Limit in DataSheet */ 114 0xBC, /* FAN 5 Count Low Limit in DataSheet */ 115 0xBD, /* FAN 6 Count Low Limit in DataSheet */ 116 0xBF /* FAN 7 Count Low Limit in DataSheet */ 117}; 118#define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */ 119static const u8 W83792D_REG_FAN_DIV[4] = { 120 0x47, /* contains FAN2 and FAN1 Divisor */ 121 0x5B, /* contains FAN4 and FAN3 Divisor */ 122 0x5C, /* contains FAN6 and FAN5 Divisor */ 123 0x9E /* contains FAN7 Divisor. */ 124}; 125static const u8 W83792D_REG_PWM[7] = { 126 0x81, /* FAN 1 Duty Cycle, be used to control */ 127 0x83, /* FAN 2 Duty Cycle, be used to control */ 128 0x94, /* FAN 3 Duty Cycle, be used to control */ 129 0xA3, /* FAN 4 Duty Cycle, be used to control */ 130 0xA4, /* FAN 5 Duty Cycle, be used to control */ 131 0xA5, /* FAN 6 Duty Cycle, be used to control */ 132 0xA6 /* FAN 7 Duty Cycle, be used to control */ 133}; 134#define W83792D_REG_BANK 0x4E 135#define W83792D_REG_TEMP2_CONFIG 0xC2 136#define W83792D_REG_TEMP3_CONFIG 0xCA 137 138static const u8 W83792D_REG_TEMP1[3] = { 139 0x27, /* TEMP 1 in DataSheet */ 140 0x39, /* TEMP 1 Over in DataSheet */ 141 0x3A, /* TEMP 1 Hyst in DataSheet */ 142}; 143 144static const u8 W83792D_REG_TEMP_ADD[2][6] = { 145 { 0xC0, /* TEMP 2 in DataSheet */ 146 0xC1, /* TEMP 2(0.5 deg) in DataSheet */ 147 0xC5, /* TEMP 2 Over High part in DataSheet */ 148 0xC6, /* TEMP 2 Over Low part in DataSheet */ 149 0xC3, /* TEMP 2 Thyst High part in DataSheet */ 150 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */ 151 { 0xC8, /* TEMP 3 in DataSheet */ 152 0xC9, /* TEMP 3(0.5 deg) in DataSheet */ 153 0xCD, /* TEMP 3 Over High part in DataSheet */ 154 0xCE, /* TEMP 3 Over Low part in DataSheet */ 155 0xCB, /* TEMP 3 Thyst High part in DataSheet */ 156 0xCC } /* TEMP 3 Thyst Low part in DataSheet */ 157}; 158 159static const u8 W83792D_REG_THERMAL[3] = { 160 0x85, /* SmartFanI: Fan1 target value */ 161 0x86, /* SmartFanI: Fan2 target value */ 162 0x96 /* SmartFanI: Fan3 target value */ 163}; 164 165static const u8 W83792D_REG_TOLERANCE[3] = { 166 0x87, /* (bit3-0)SmartFan Fan1 tolerance */ 167 0x87, /* (bit7-4)SmartFan Fan2 tolerance */ 168 0x97 /* (bit3-0)SmartFan Fan3 tolerance */ 169}; 170 171static const u8 W83792D_REG_POINTS[3][4] = { 172 { 0x85, /* SmartFanII: Fan1 temp point 1 */ 173 0xE3, /* SmartFanII: Fan1 temp point 2 */ 174 0xE4, /* SmartFanII: Fan1 temp point 3 */ 175 0xE5 }, /* SmartFanII: Fan1 temp point 4 */ 176 { 0x86, /* SmartFanII: Fan2 temp point 1 */ 177 0xE6, /* SmartFanII: Fan2 temp point 2 */ 178 0xE7, /* SmartFanII: Fan2 temp point 3 */ 179 0xE8 }, /* SmartFanII: Fan2 temp point 4 */ 180 { 0x96, /* SmartFanII: Fan3 temp point 1 */ 181 0xE9, /* SmartFanII: Fan3 temp point 2 */ 182 0xEA, /* SmartFanII: Fan3 temp point 3 */ 183 0xEB } /* SmartFanII: Fan3 temp point 4 */ 184}; 185 186static const u8 W83792D_REG_LEVELS[3][4] = { 187 { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */ 188 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */ 189 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */ 190 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */ 191 { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */ 192 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */ 193 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */ 194 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */ 195 { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */ 196 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */ 197 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */ 198 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */ 199}; 200 201#define W83792D_REG_GPIO_EN 0x1A 202#define W83792D_REG_CONFIG 0x40 203#define W83792D_REG_VID_FANDIV 0x47 204#define W83792D_REG_CHIPID 0x49 205#define W83792D_REG_WCHIPID 0x58 206#define W83792D_REG_CHIPMAN 0x4F 207#define W83792D_REG_PIN 0x4B 208#define W83792D_REG_I2C_SUBADDR 0x4A 209 210#define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */ 211#define W83792D_REG_ALARM2 0xAA /* realtime status register2 */ 212#define W83792D_REG_ALARM3 0xAB /* realtime status register3 */ 213#define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */ 214#define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */ 215 216/* control in0/in1 's limit modifiability */ 217#define W83792D_REG_VID_IN_B 0x17 218 219#define W83792D_REG_VBAT 0x5D 220#define W83792D_REG_I2C_ADDR 0x48 221 222/* 223 * Conversions. Rounding and limit checking is only done on the TO_REG 224 * variants. Note that you should be a bit careful with which arguments 225 * these macros are called: arguments may be evaluated more than once. 226 * Fixing this is just not worth it. 227 */ 228#define IN_FROM_REG(nr, val) (((nr) <= 1) ? ((val) * 2) : \ 229 ((((nr) == 6) || ((nr) == 7)) ? ((val) * 6) : ((val) * 4))) 230#define IN_TO_REG(nr, val) (((nr) <= 1) ? ((val) / 2) : \ 231 ((((nr) == 6) || ((nr) == 7)) ? ((val) / 6) : ((val) / 4))) 232 233static inline u8 234FAN_TO_REG(long rpm, int div) 235{ 236 if (rpm == 0) 237 return 255; 238 rpm = clamp_val(rpm, 1, 1000000); 239 return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254); 240} 241 242#define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \ 243 ((val) == 255 ? 0 : \ 244 1350000 / ((val) * (div)))) 245 246/* for temp1 */ 247#define TEMP1_TO_REG(val) (clamp_val(((val) < 0 ? (val) + 0x100 * 1000 \ 248 : (val)) / 1000, 0, 0xff)) 249#define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000) 250/* for temp2 and temp3, because they need additional resolution */ 251#define TEMP_ADD_FROM_REG(val1, val2) \ 252 ((((val1) & 0x80 ? (val1)-0x100 \ 253 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0)) 254#define TEMP_ADD_TO_REG_HIGH(val) \ 255 (clamp_val(((val) < 0 ? (val) + 0x100 * 1000 : (val)) / 1000, 0, 0xff)) 256#define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00) 257 258#define DIV_FROM_REG(val) (1 << (val)) 259 260static inline u8 261DIV_TO_REG(long val) 262{ 263 int i; 264 val = clamp_val(val, 1, 128) >> 1; 265 for (i = 0; i < 7; i++) { 266 if (val == 0) 267 break; 268 val >>= 1; 269 } 270 return (u8)i; 271} 272 273struct w83792d_data { 274 struct device *hwmon_dev; 275 276 struct mutex update_lock; 277 char valid; /* !=0 if following fields are valid */ 278 unsigned long last_updated; /* In jiffies */ 279 280 /* array of 2 pointers to subclients */ 281 struct i2c_client *lm75[2]; 282 283 u8 in[9]; /* Register value */ 284 u8 in_max[9]; /* Register value */ 285 u8 in_min[9]; /* Register value */ 286 u16 low_bits; /* Additional resolution to voltage in6-0 */ 287 u8 fan[7]; /* Register value */ 288 u8 fan_min[7]; /* Register value */ 289 u8 temp1[3]; /* current, over, thyst */ 290 u8 temp_add[2][6]; /* Register value */ 291 u8 fan_div[7]; /* Register encoding, shifted right */ 292 u8 pwm[7]; /* 293 * We only consider the first 3 set of pwm, 294 * although 792 chip has 7 set of pwm. 295 */ 296 u8 pwmenable[3]; 297 u32 alarms; /* realtime status register encoding,combined */ 298 u8 chassis; /* Chassis status */ 299 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */ 300 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */ 301 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */ 302 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */ 303}; 304 305static int w83792d_probe(struct i2c_client *client, 306 const struct i2c_device_id *id); 307static int w83792d_detect(struct i2c_client *client, 308 struct i2c_board_info *info); 309static int w83792d_remove(struct i2c_client *client); 310static struct w83792d_data *w83792d_update_device(struct device *dev); 311 312#ifdef DEBUG 313static void w83792d_print_debug(struct w83792d_data *data, struct device *dev); 314#endif 315 316static void w83792d_init_client(struct i2c_client *client); 317 318static const struct i2c_device_id w83792d_id[] = { 319 { "w83792d", 0 }, 320 { } 321}; 322MODULE_DEVICE_TABLE(i2c, w83792d_id); 323 324static struct i2c_driver w83792d_driver = { 325 .class = I2C_CLASS_HWMON, 326 .driver = { 327 .name = "w83792d", 328 }, 329 .probe = w83792d_probe, 330 .remove = w83792d_remove, 331 .id_table = w83792d_id, 332 .detect = w83792d_detect, 333 .address_list = normal_i2c, 334}; 335 336static inline long in_count_from_reg(int nr, struct w83792d_data *data) 337{ 338 /* in7 and in8 do not have low bits, but the formula still works */ 339 return (data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03); 340} 341 342/* 343 * The SMBus locks itself. The Winbond W83792D chip has a bank register, 344 * but the driver only accesses registers in bank 0, so we don't have 345 * to switch banks and lock access between switches. 346 */ 347static inline int w83792d_read_value(struct i2c_client *client, u8 reg) 348{ 349 return i2c_smbus_read_byte_data(client, reg); 350} 351 352static inline int 353w83792d_write_value(struct i2c_client *client, u8 reg, u8 value) 354{ 355 return i2c_smbus_write_byte_data(client, reg, value); 356} 357 358/* following are the sysfs callback functions */ 359static ssize_t show_in(struct device *dev, struct device_attribute *attr, 360 char *buf) 361{ 362 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 363 int nr = sensor_attr->index; 364 struct w83792d_data *data = w83792d_update_device(dev); 365 return sprintf(buf, "%ld\n", 366 IN_FROM_REG(nr, in_count_from_reg(nr, data))); 367} 368 369#define show_in_reg(reg) \ 370static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ 371 char *buf) \ 372{ \ 373 struct sensor_device_attribute *sensor_attr \ 374 = to_sensor_dev_attr(attr); \ 375 int nr = sensor_attr->index; \ 376 struct w83792d_data *data = w83792d_update_device(dev); \ 377 return sprintf(buf, "%ld\n", \ 378 (long)(IN_FROM_REG(nr, data->reg[nr]) * 4)); \ 379} 380 381show_in_reg(in_min); 382show_in_reg(in_max); 383 384#define store_in_reg(REG, reg) \ 385static ssize_t store_in_##reg(struct device *dev, \ 386 struct device_attribute *attr, \ 387 const char *buf, size_t count) \ 388{ \ 389 struct sensor_device_attribute *sensor_attr \ 390 = to_sensor_dev_attr(attr); \ 391 int nr = sensor_attr->index; \ 392 struct i2c_client *client = to_i2c_client(dev); \ 393 struct w83792d_data *data = i2c_get_clientdata(client); \ 394 unsigned long val; \ 395 int err = kstrtoul(buf, 10, &val); \ 396 if (err) \ 397 return err; \ 398 mutex_lock(&data->update_lock); \ 399 data->in_##reg[nr] = clamp_val(IN_TO_REG(nr, val) / 4, 0, 255); \ 400 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], \ 401 data->in_##reg[nr]); \ 402 mutex_unlock(&data->update_lock); \ 403 \ 404 return count; \ 405} 406store_in_reg(MIN, min); 407store_in_reg(MAX, max); 408 409#define show_fan_reg(reg) \ 410static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ 411 char *buf) \ 412{ \ 413 struct sensor_device_attribute *sensor_attr \ 414 = to_sensor_dev_attr(attr); \ 415 int nr = sensor_attr->index - 1; \ 416 struct w83792d_data *data = w83792d_update_device(dev); \ 417 return sprintf(buf, "%d\n", \ 418 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \ 419} 420 421show_fan_reg(fan); 422show_fan_reg(fan_min); 423 424static ssize_t 425store_fan_min(struct device *dev, struct device_attribute *attr, 426 const char *buf, size_t count) 427{ 428 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 429 int nr = sensor_attr->index - 1; 430 struct i2c_client *client = to_i2c_client(dev); 431 struct w83792d_data *data = i2c_get_clientdata(client); 432 unsigned long val; 433 int err; 434 435 err = kstrtoul(buf, 10, &val); 436 if (err) 437 return err; 438 439 mutex_lock(&data->update_lock); 440 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); 441 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], 442 data->fan_min[nr]); 443 mutex_unlock(&data->update_lock); 444 445 return count; 446} 447 448static ssize_t 449show_fan_div(struct device *dev, struct device_attribute *attr, 450 char *buf) 451{ 452 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 453 int nr = sensor_attr->index; 454 struct w83792d_data *data = w83792d_update_device(dev); 455 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1])); 456} 457 458/* 459 * Note: we save and restore the fan minimum here, because its value is 460 * determined in part by the fan divisor. This follows the principle of 461 * least surprise; the user doesn't expect the fan minimum to change just 462 * because the divisor changed. 463 */ 464static ssize_t 465store_fan_div(struct device *dev, struct device_attribute *attr, 466 const char *buf, size_t count) 467{ 468 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 469 int nr = sensor_attr->index - 1; 470 struct i2c_client *client = to_i2c_client(dev); 471 struct w83792d_data *data = i2c_get_clientdata(client); 472 unsigned long min; 473 /*u8 reg;*/ 474 u8 fan_div_reg = 0; 475 u8 tmp_fan_div; 476 unsigned long val; 477 int err; 478 479 err = kstrtoul(buf, 10, &val); 480 if (err) 481 return err; 482 483 /* Save fan_min */ 484 mutex_lock(&data->update_lock); 485 min = FAN_FROM_REG(data->fan_min[nr], 486 DIV_FROM_REG(data->fan_div[nr])); 487 488 data->fan_div[nr] = DIV_TO_REG(val); 489 490 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]); 491 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8; 492 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70) 493 : ((data->fan_div[nr]) & 0x07); 494 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1], 495 fan_div_reg | tmp_fan_div); 496 497 /* Restore fan_min */ 498 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); 499 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]); 500 mutex_unlock(&data->update_lock); 501 502 return count; 503} 504 505/* read/write the temperature1, includes measured value and limits */ 506 507static ssize_t show_temp1(struct device *dev, struct device_attribute *attr, 508 char *buf) 509{ 510 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 511 int nr = sensor_attr->index; 512 struct w83792d_data *data = w83792d_update_device(dev); 513 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr])); 514} 515 516static ssize_t store_temp1(struct device *dev, struct device_attribute *attr, 517 const char *buf, size_t count) 518{ 519 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 520 int nr = sensor_attr->index; 521 struct i2c_client *client = to_i2c_client(dev); 522 struct w83792d_data *data = i2c_get_clientdata(client); 523 long val; 524 int err; 525 526 err = kstrtol(buf, 10, &val); 527 if (err) 528 return err; 529 530 mutex_lock(&data->update_lock); 531 data->temp1[nr] = TEMP1_TO_REG(val); 532 w83792d_write_value(client, W83792D_REG_TEMP1[nr], 533 data->temp1[nr]); 534 mutex_unlock(&data->update_lock); 535 536 return count; 537} 538 539/* read/write the temperature2-3, includes measured value and limits */ 540 541static ssize_t show_temp23(struct device *dev, struct device_attribute *attr, 542 char *buf) 543{ 544 struct sensor_device_attribute_2 *sensor_attr 545 = to_sensor_dev_attr_2(attr); 546 int nr = sensor_attr->nr; 547 int index = sensor_attr->index; 548 struct w83792d_data *data = w83792d_update_device(dev); 549 return sprintf(buf, "%ld\n", 550 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index], 551 data->temp_add[nr][index+1])); 552} 553 554static ssize_t store_temp23(struct device *dev, struct device_attribute *attr, 555 const char *buf, size_t count) 556{ 557 struct sensor_device_attribute_2 *sensor_attr 558 = to_sensor_dev_attr_2(attr); 559 int nr = sensor_attr->nr; 560 int index = sensor_attr->index; 561 struct i2c_client *client = to_i2c_client(dev); 562 struct w83792d_data *data = i2c_get_clientdata(client); 563 long val; 564 int err; 565 566 err = kstrtol(buf, 10, &val); 567 if (err) 568 return err; 569 570 mutex_lock(&data->update_lock); 571 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val); 572 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val); 573 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index], 574 data->temp_add[nr][index]); 575 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1], 576 data->temp_add[nr][index+1]); 577 mutex_unlock(&data->update_lock); 578 579 return count; 580} 581 582/* get realtime status of all sensors items: voltage, temp, fan */ 583static ssize_t 584show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) 585{ 586 struct w83792d_data *data = w83792d_update_device(dev); 587 return sprintf(buf, "%d\n", data->alarms); 588} 589 590static ssize_t show_alarm(struct device *dev, 591 struct device_attribute *attr, char *buf) 592{ 593 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 594 int nr = sensor_attr->index; 595 struct w83792d_data *data = w83792d_update_device(dev); 596 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1); 597} 598 599static ssize_t 600show_pwm(struct device *dev, struct device_attribute *attr, 601 char *buf) 602{ 603 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 604 int nr = sensor_attr->index; 605 struct w83792d_data *data = w83792d_update_device(dev); 606 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4); 607} 608 609static ssize_t 610show_pwmenable(struct device *dev, struct device_attribute *attr, 611 char *buf) 612{ 613 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 614 int nr = sensor_attr->index - 1; 615 struct w83792d_data *data = w83792d_update_device(dev); 616 long pwm_enable_tmp = 1; 617 618 switch (data->pwmenable[nr]) { 619 case 0: 620 pwm_enable_tmp = 1; /* manual mode */ 621 break; 622 case 1: 623 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */ 624 break; 625 case 2: 626 pwm_enable_tmp = 2; /* Smart Fan II */ 627 break; 628 } 629 630 return sprintf(buf, "%ld\n", pwm_enable_tmp); 631} 632 633static ssize_t 634store_pwm(struct device *dev, struct device_attribute *attr, 635 const char *buf, size_t count) 636{ 637 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 638 int nr = sensor_attr->index; 639 struct i2c_client *client = to_i2c_client(dev); 640 struct w83792d_data *data = i2c_get_clientdata(client); 641 unsigned long val; 642 int err; 643 644 err = kstrtoul(buf, 10, &val); 645 if (err) 646 return err; 647 val = clamp_val(val, 0, 255) >> 4; 648 649 mutex_lock(&data->update_lock); 650 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0; 651 data->pwm[nr] = val; 652 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 653 mutex_unlock(&data->update_lock); 654 655 return count; 656} 657 658static ssize_t 659store_pwmenable(struct device *dev, struct device_attribute *attr, 660 const char *buf, size_t count) 661{ 662 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 663 int nr = sensor_attr->index - 1; 664 struct i2c_client *client = to_i2c_client(dev); 665 struct w83792d_data *data = i2c_get_clientdata(client); 666 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp; 667 unsigned long val; 668 int err; 669 670 err = kstrtoul(buf, 10, &val); 671 if (err) 672 return err; 673 674 if (val < 1 || val > 3) 675 return -EINVAL; 676 677 mutex_lock(&data->update_lock); 678 switch (val) { 679 case 1: 680 data->pwmenable[nr] = 0; /* manual mode */ 681 break; 682 case 2: 683 data->pwmenable[nr] = 2; /* Smart Fan II */ 684 break; 685 case 3: 686 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */ 687 break; 688 } 689 cfg1_tmp = data->pwmenable[0]; 690 cfg2_tmp = (data->pwmenable[1]) << 2; 691 cfg3_tmp = (data->pwmenable[2]) << 4; 692 cfg4_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG) & 0xc0; 693 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp; 694 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp); 695 mutex_unlock(&data->update_lock); 696 697 return count; 698} 699 700static ssize_t 701show_pwm_mode(struct device *dev, struct device_attribute *attr, 702 char *buf) 703{ 704 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 705 int nr = sensor_attr->index; 706 struct w83792d_data *data = w83792d_update_device(dev); 707 return sprintf(buf, "%d\n", data->pwm[nr] >> 7); 708} 709 710static ssize_t 711store_pwm_mode(struct device *dev, struct device_attribute *attr, 712 const char *buf, size_t count) 713{ 714 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 715 int nr = sensor_attr->index; 716 struct i2c_client *client = to_i2c_client(dev); 717 struct w83792d_data *data = i2c_get_clientdata(client); 718 unsigned long val; 719 int err; 720 721 err = kstrtoul(buf, 10, &val); 722 if (err) 723 return err; 724 if (val > 1) 725 return -EINVAL; 726 727 mutex_lock(&data->update_lock); 728 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]); 729 if (val) { /* PWM mode */ 730 data->pwm[nr] |= 0x80; 731 } else { /* DC mode */ 732 data->pwm[nr] &= 0x7f; 733 } 734 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 735 mutex_unlock(&data->update_lock); 736 737 return count; 738} 739 740static ssize_t 741show_chassis_clear(struct device *dev, struct device_attribute *attr, 742 char *buf) 743{ 744 struct w83792d_data *data = w83792d_update_device(dev); 745 return sprintf(buf, "%d\n", data->chassis); 746} 747 748static ssize_t 749store_chassis_clear(struct device *dev, struct device_attribute *attr, 750 const char *buf, size_t count) 751{ 752 struct i2c_client *client = to_i2c_client(dev); 753 struct w83792d_data *data = i2c_get_clientdata(client); 754 unsigned long val; 755 u8 reg; 756 757 if (kstrtoul(buf, 10, &val) || val != 0) 758 return -EINVAL; 759 760 mutex_lock(&data->update_lock); 761 reg = w83792d_read_value(client, W83792D_REG_CHASSIS_CLR); 762 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, reg | 0x80); 763 data->valid = 0; /* Force cache refresh */ 764 mutex_unlock(&data->update_lock); 765 766 return count; 767} 768 769/* For Smart Fan I / Thermal Cruise */ 770static ssize_t 771show_thermal_cruise(struct device *dev, struct device_attribute *attr, 772 char *buf) 773{ 774 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 775 int nr = sensor_attr->index; 776 struct w83792d_data *data = w83792d_update_device(dev); 777 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]); 778} 779 780static ssize_t 781store_thermal_cruise(struct device *dev, struct device_attribute *attr, 782 const char *buf, size_t count) 783{ 784 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 785 int nr = sensor_attr->index - 1; 786 struct i2c_client *client = to_i2c_client(dev); 787 struct w83792d_data *data = i2c_get_clientdata(client); 788 u8 target_tmp = 0, target_mask = 0; 789 unsigned long val; 790 int err; 791 792 err = kstrtoul(buf, 10, &val); 793 if (err) 794 return err; 795 796 target_tmp = val; 797 target_tmp = target_tmp & 0x7f; 798 mutex_lock(&data->update_lock); 799 target_mask = w83792d_read_value(client, 800 W83792D_REG_THERMAL[nr]) & 0x80; 801 data->thermal_cruise[nr] = clamp_val(target_tmp, 0, 255); 802 w83792d_write_value(client, W83792D_REG_THERMAL[nr], 803 (data->thermal_cruise[nr]) | target_mask); 804 mutex_unlock(&data->update_lock); 805 806 return count; 807} 808 809/* For Smart Fan I/Thermal Cruise and Smart Fan II */ 810static ssize_t 811show_tolerance(struct device *dev, struct device_attribute *attr, 812 char *buf) 813{ 814 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 815 int nr = sensor_attr->index; 816 struct w83792d_data *data = w83792d_update_device(dev); 817 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]); 818} 819 820static ssize_t 821store_tolerance(struct device *dev, struct device_attribute *attr, 822 const char *buf, size_t count) 823{ 824 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 825 int nr = sensor_attr->index - 1; 826 struct i2c_client *client = to_i2c_client(dev); 827 struct w83792d_data *data = i2c_get_clientdata(client); 828 u8 tol_tmp, tol_mask; 829 unsigned long val; 830 int err; 831 832 err = kstrtoul(buf, 10, &val); 833 if (err) 834 return err; 835 836 mutex_lock(&data->update_lock); 837 tol_mask = w83792d_read_value(client, 838 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0); 839 tol_tmp = clamp_val(val, 0, 15); 840 tol_tmp &= 0x0f; 841 data->tolerance[nr] = tol_tmp; 842 if (nr == 1) 843 tol_tmp <<= 4; 844 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr], 845 tol_mask | tol_tmp); 846 mutex_unlock(&data->update_lock); 847 848 return count; 849} 850 851/* For Smart Fan II */ 852static ssize_t 853show_sf2_point(struct device *dev, struct device_attribute *attr, 854 char *buf) 855{ 856 struct sensor_device_attribute_2 *sensor_attr 857 = to_sensor_dev_attr_2(attr); 858 int nr = sensor_attr->nr; 859 int index = sensor_attr->index; 860 struct w83792d_data *data = w83792d_update_device(dev); 861 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]); 862} 863 864static ssize_t 865store_sf2_point(struct device *dev, struct device_attribute *attr, 866 const char *buf, size_t count) 867{ 868 struct sensor_device_attribute_2 *sensor_attr 869 = to_sensor_dev_attr_2(attr); 870 int nr = sensor_attr->nr - 1; 871 int index = sensor_attr->index - 1; 872 struct i2c_client *client = to_i2c_client(dev); 873 struct w83792d_data *data = i2c_get_clientdata(client); 874 u8 mask_tmp = 0; 875 unsigned long val; 876 int err; 877 878 err = kstrtoul(buf, 10, &val); 879 if (err) 880 return err; 881 882 mutex_lock(&data->update_lock); 883 data->sf2_points[index][nr] = clamp_val(val, 0, 127); 884 mask_tmp = w83792d_read_value(client, 885 W83792D_REG_POINTS[index][nr]) & 0x80; 886 w83792d_write_value(client, W83792D_REG_POINTS[index][nr], 887 mask_tmp|data->sf2_points[index][nr]); 888 mutex_unlock(&data->update_lock); 889 890 return count; 891} 892 893static ssize_t 894show_sf2_level(struct device *dev, struct device_attribute *attr, 895 char *buf) 896{ 897 struct sensor_device_attribute_2 *sensor_attr 898 = to_sensor_dev_attr_2(attr); 899 int nr = sensor_attr->nr; 900 int index = sensor_attr->index; 901 struct w83792d_data *data = w83792d_update_device(dev); 902 return sprintf(buf, "%d\n", 903 (((data->sf2_levels[index-1][nr]) * 100) / 15)); 904} 905 906static ssize_t 907store_sf2_level(struct device *dev, struct device_attribute *attr, 908 const char *buf, size_t count) 909{ 910 struct sensor_device_attribute_2 *sensor_attr 911 = to_sensor_dev_attr_2(attr); 912 int nr = sensor_attr->nr; 913 int index = sensor_attr->index - 1; 914 struct i2c_client *client = to_i2c_client(dev); 915 struct w83792d_data *data = i2c_get_clientdata(client); 916 u8 mask_tmp = 0, level_tmp = 0; 917 unsigned long val; 918 int err; 919 920 err = kstrtoul(buf, 10, &val); 921 if (err) 922 return err; 923 924 mutex_lock(&data->update_lock); 925 data->sf2_levels[index][nr] = clamp_val((val * 15) / 100, 0, 15); 926 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr]) 927 & ((nr == 3) ? 0xf0 : 0x0f); 928 if (nr == 3) 929 level_tmp = data->sf2_levels[index][nr]; 930 else 931 level_tmp = data->sf2_levels[index][nr] << 4; 932 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], 933 level_tmp | mask_tmp); 934 mutex_unlock(&data->update_lock); 935 936 return count; 937} 938 939 940static int 941w83792d_detect_subclients(struct i2c_client *new_client) 942{ 943 int i, id, err; 944 int address = new_client->addr; 945 u8 val; 946 struct i2c_adapter *adapter = new_client->adapter; 947 struct w83792d_data *data = i2c_get_clientdata(new_client); 948 949 id = i2c_adapter_id(adapter); 950 if (force_subclients[0] == id && force_subclients[1] == address) { 951 for (i = 2; i <= 3; i++) { 952 if (force_subclients[i] < 0x48 || 953 force_subclients[i] > 0x4f) { 954 dev_err(&new_client->dev, 955 "invalid subclient address %d; must be 0x48-0x4f\n", 956 force_subclients[i]); 957 err = -ENODEV; 958 goto ERROR_SC_0; 959 } 960 } 961 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR, 962 (force_subclients[2] & 0x07) | 963 ((force_subclients[3] & 0x07) << 4)); 964 } 965 966 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR); 967 if (!(val & 0x08)) 968 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7)); 969 if (!(val & 0x80)) { 970 if ((data->lm75[0] != NULL) && 971 ((val & 0x7) == ((val >> 4) & 0x7))) { 972 dev_err(&new_client->dev, 973 "duplicate addresses 0x%x, use force_subclient\n", 974 data->lm75[0]->addr); 975 err = -ENODEV; 976 goto ERROR_SC_1; 977 } 978 data->lm75[1] = i2c_new_dummy(adapter, 979 0x48 + ((val >> 4) & 0x7)); 980 } 981 982 return 0; 983 984/* Undo inits in case of errors */ 985 986ERROR_SC_1: 987 if (data->lm75[0] != NULL) 988 i2c_unregister_device(data->lm75[0]); 989ERROR_SC_0: 990 return err; 991} 992 993static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); 994static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); 995static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); 996static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); 997static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4); 998static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5); 999static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6); 1000static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7); 1001static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8); 1002static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO, 1003 show_in_min, store_in_min, 0); 1004static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, 1005 show_in_min, store_in_min, 1); 1006static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, 1007 show_in_min, store_in_min, 2); 1008static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO, 1009 show_in_min, store_in_min, 3); 1010static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO, 1011 show_in_min, store_in_min, 4); 1012static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO, 1013 show_in_min, store_in_min, 5); 1014static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO, 1015 show_in_min, store_in_min, 6); 1016static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO, 1017 show_in_min, store_in_min, 7); 1018static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO, 1019 show_in_min, store_in_min, 8); 1020static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO, 1021 show_in_max, store_in_max, 0); 1022static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, 1023 show_in_max, store_in_max, 1); 1024static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, 1025 show_in_max, store_in_max, 2); 1026static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO, 1027 show_in_max, store_in_max, 3); 1028static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO, 1029 show_in_max, store_in_max, 4); 1030static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO, 1031 show_in_max, store_in_max, 5); 1032static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO, 1033 show_in_max, store_in_max, 6); 1034static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO, 1035 show_in_max, store_in_max, 7); 1036static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO, 1037 show_in_max, store_in_max, 8); 1038static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0); 1039static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0); 1040static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0); 1041static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, 1042 show_temp1, store_temp1, 0, 1); 1043static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23, 1044 store_temp23, 0, 2); 1045static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23, 1046 store_temp23, 1, 2); 1047static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, 1048 show_temp1, store_temp1, 0, 2); 1049static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, 1050 show_temp23, store_temp23, 0, 4); 1051static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, 1052 show_temp23, store_temp23, 1, 4); 1053static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); 1054static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); 1055static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); 1056static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2); 1057static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3); 1058static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4); 1059static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5); 1060static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6); 1061static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7); 1062static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8); 1063static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9); 1064static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10); 1065static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11); 1066static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12); 1067static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15); 1068static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19); 1069static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20); 1070static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21); 1071static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22); 1072static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23); 1073static DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR, 1074 show_chassis_clear, store_chassis_clear); 1075static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0); 1076static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1); 1077static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2); 1078static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, 1079 show_pwmenable, store_pwmenable, 1); 1080static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, 1081 show_pwmenable, store_pwmenable, 2); 1082static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, 1083 show_pwmenable, store_pwmenable, 3); 1084static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, 1085 show_pwm_mode, store_pwm_mode, 0); 1086static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, 1087 show_pwm_mode, store_pwm_mode, 1); 1088static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, 1089 show_pwm_mode, store_pwm_mode, 2); 1090static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO, 1091 show_tolerance, store_tolerance, 1); 1092static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO, 1093 show_tolerance, store_tolerance, 2); 1094static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO, 1095 show_tolerance, store_tolerance, 3); 1096static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO, 1097 show_thermal_cruise, store_thermal_cruise, 1); 1098static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO, 1099 show_thermal_cruise, store_thermal_cruise, 2); 1100static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO, 1101 show_thermal_cruise, store_thermal_cruise, 3); 1102static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR, 1103 show_sf2_point, store_sf2_point, 1, 1); 1104static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR, 1105 show_sf2_point, store_sf2_point, 2, 1); 1106static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR, 1107 show_sf2_point, store_sf2_point, 3, 1); 1108static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR, 1109 show_sf2_point, store_sf2_point, 4, 1); 1110static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR, 1111 show_sf2_point, store_sf2_point, 1, 2); 1112static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR, 1113 show_sf2_point, store_sf2_point, 2, 2); 1114static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR, 1115 show_sf2_point, store_sf2_point, 3, 2); 1116static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR, 1117 show_sf2_point, store_sf2_point, 4, 2); 1118static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR, 1119 show_sf2_point, store_sf2_point, 1, 3); 1120static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR, 1121 show_sf2_point, store_sf2_point, 2, 3); 1122static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR, 1123 show_sf2_point, store_sf2_point, 3, 3); 1124static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR, 1125 show_sf2_point, store_sf2_point, 4, 3); 1126static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR, 1127 show_sf2_level, store_sf2_level, 1, 1); 1128static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR, 1129 show_sf2_level, store_sf2_level, 2, 1); 1130static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR, 1131 show_sf2_level, store_sf2_level, 3, 1); 1132static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR, 1133 show_sf2_level, store_sf2_level, 1, 2); 1134static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR, 1135 show_sf2_level, store_sf2_level, 2, 2); 1136static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR, 1137 show_sf2_level, store_sf2_level, 3, 2); 1138static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR, 1139 show_sf2_level, store_sf2_level, 1, 3); 1140static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR, 1141 show_sf2_level, store_sf2_level, 2, 3); 1142static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR, 1143 show_sf2_level, store_sf2_level, 3, 3); 1144static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1); 1145static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2); 1146static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3); 1147static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4); 1148static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5); 1149static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6); 1150static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7); 1151static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, 1152 show_fan_min, store_fan_min, 1); 1153static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, 1154 show_fan_min, store_fan_min, 2); 1155static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, 1156 show_fan_min, store_fan_min, 3); 1157static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, 1158 show_fan_min, store_fan_min, 4); 1159static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO, 1160 show_fan_min, store_fan_min, 5); 1161static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO, 1162 show_fan_min, store_fan_min, 6); 1163static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO, 1164 show_fan_min, store_fan_min, 7); 1165static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO, 1166 show_fan_div, store_fan_div, 1); 1167static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO, 1168 show_fan_div, store_fan_div, 2); 1169static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO, 1170 show_fan_div, store_fan_div, 3); 1171static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO, 1172 show_fan_div, store_fan_div, 4); 1173static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO, 1174 show_fan_div, store_fan_div, 5); 1175static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO, 1176 show_fan_div, store_fan_div, 6); 1177static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO, 1178 show_fan_div, store_fan_div, 7); 1179 1180static struct attribute *w83792d_attributes_fan[4][5] = { 1181 { 1182 &sensor_dev_attr_fan4_input.dev_attr.attr, 1183 &sensor_dev_attr_fan4_min.dev_attr.attr, 1184 &sensor_dev_attr_fan4_div.dev_attr.attr, 1185 &sensor_dev_attr_fan4_alarm.dev_attr.attr, 1186 NULL 1187 }, { 1188 &sensor_dev_attr_fan5_input.dev_attr.attr, 1189 &sensor_dev_attr_fan5_min.dev_attr.attr, 1190 &sensor_dev_attr_fan5_div.dev_attr.attr, 1191 &sensor_dev_attr_fan5_alarm.dev_attr.attr, 1192 NULL 1193 }, { 1194 &sensor_dev_attr_fan6_input.dev_attr.attr, 1195 &sensor_dev_attr_fan6_min.dev_attr.attr, 1196 &sensor_dev_attr_fan6_div.dev_attr.attr, 1197 &sensor_dev_attr_fan6_alarm.dev_attr.attr, 1198 NULL 1199 }, { 1200 &sensor_dev_attr_fan7_input.dev_attr.attr, 1201 &sensor_dev_attr_fan7_min.dev_attr.attr, 1202 &sensor_dev_attr_fan7_div.dev_attr.attr, 1203 &sensor_dev_attr_fan7_alarm.dev_attr.attr, 1204 NULL 1205 } 1206}; 1207 1208static const struct attribute_group w83792d_group_fan[4] = { 1209 { .attrs = w83792d_attributes_fan[0] }, 1210 { .attrs = w83792d_attributes_fan[1] }, 1211 { .attrs = w83792d_attributes_fan[2] }, 1212 { .attrs = w83792d_attributes_fan[3] }, 1213}; 1214 1215static struct attribute *w83792d_attributes[] = { 1216 &sensor_dev_attr_in0_input.dev_attr.attr, 1217 &sensor_dev_attr_in0_max.dev_attr.attr, 1218 &sensor_dev_attr_in0_min.dev_attr.attr, 1219 &sensor_dev_attr_in1_input.dev_attr.attr, 1220 &sensor_dev_attr_in1_max.dev_attr.attr, 1221 &sensor_dev_attr_in1_min.dev_attr.attr, 1222 &sensor_dev_attr_in2_input.dev_attr.attr, 1223 &sensor_dev_attr_in2_max.dev_attr.attr, 1224 &sensor_dev_attr_in2_min.dev_attr.attr, 1225 &sensor_dev_attr_in3_input.dev_attr.attr, 1226 &sensor_dev_attr_in3_max.dev_attr.attr, 1227 &sensor_dev_attr_in3_min.dev_attr.attr, 1228 &sensor_dev_attr_in4_input.dev_attr.attr, 1229 &sensor_dev_attr_in4_max.dev_attr.attr, 1230 &sensor_dev_attr_in4_min.dev_attr.attr, 1231 &sensor_dev_attr_in5_input.dev_attr.attr, 1232 &sensor_dev_attr_in5_max.dev_attr.attr, 1233 &sensor_dev_attr_in5_min.dev_attr.attr, 1234 &sensor_dev_attr_in6_input.dev_attr.attr, 1235 &sensor_dev_attr_in6_max.dev_attr.attr, 1236 &sensor_dev_attr_in6_min.dev_attr.attr, 1237 &sensor_dev_attr_in7_input.dev_attr.attr, 1238 &sensor_dev_attr_in7_max.dev_attr.attr, 1239 &sensor_dev_attr_in7_min.dev_attr.attr, 1240 &sensor_dev_attr_in8_input.dev_attr.attr, 1241 &sensor_dev_attr_in8_max.dev_attr.attr, 1242 &sensor_dev_attr_in8_min.dev_attr.attr, 1243 &sensor_dev_attr_in0_alarm.dev_attr.attr, 1244 &sensor_dev_attr_in1_alarm.dev_attr.attr, 1245 &sensor_dev_attr_in2_alarm.dev_attr.attr, 1246 &sensor_dev_attr_in3_alarm.dev_attr.attr, 1247 &sensor_dev_attr_in4_alarm.dev_attr.attr, 1248 &sensor_dev_attr_in5_alarm.dev_attr.attr, 1249 &sensor_dev_attr_in6_alarm.dev_attr.attr, 1250 &sensor_dev_attr_in7_alarm.dev_attr.attr, 1251 &sensor_dev_attr_in8_alarm.dev_attr.attr, 1252 &sensor_dev_attr_temp1_input.dev_attr.attr, 1253 &sensor_dev_attr_temp1_max.dev_attr.attr, 1254 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, 1255 &sensor_dev_attr_temp2_input.dev_attr.attr, 1256 &sensor_dev_attr_temp2_max.dev_attr.attr, 1257 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, 1258 &sensor_dev_attr_temp3_input.dev_attr.attr, 1259 &sensor_dev_attr_temp3_max.dev_attr.attr, 1260 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, 1261 &sensor_dev_attr_temp1_alarm.dev_attr.attr, 1262 &sensor_dev_attr_temp2_alarm.dev_attr.attr, 1263 &sensor_dev_attr_temp3_alarm.dev_attr.attr, 1264 &sensor_dev_attr_pwm1.dev_attr.attr, 1265 &sensor_dev_attr_pwm1_mode.dev_attr.attr, 1266 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 1267 &sensor_dev_attr_pwm2.dev_attr.attr, 1268 &sensor_dev_attr_pwm2_mode.dev_attr.attr, 1269 &sensor_dev_attr_pwm2_enable.dev_attr.attr, 1270 &sensor_dev_attr_pwm3.dev_attr.attr, 1271 &sensor_dev_attr_pwm3_mode.dev_attr.attr, 1272 &sensor_dev_attr_pwm3_enable.dev_attr.attr, 1273 &dev_attr_alarms.attr, 1274 &dev_attr_intrusion0_alarm.attr, 1275 &sensor_dev_attr_tolerance1.dev_attr.attr, 1276 &sensor_dev_attr_thermal_cruise1.dev_attr.attr, 1277 &sensor_dev_attr_tolerance2.dev_attr.attr, 1278 &sensor_dev_attr_thermal_cruise2.dev_attr.attr, 1279 &sensor_dev_attr_tolerance3.dev_attr.attr, 1280 &sensor_dev_attr_thermal_cruise3.dev_attr.attr, 1281 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr, 1282 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr, 1283 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr, 1284 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr, 1285 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr, 1286 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr, 1287 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr, 1288 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr, 1289 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr, 1290 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr, 1291 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr, 1292 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr, 1293 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr, 1294 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr, 1295 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr, 1296 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr, 1297 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr, 1298 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr, 1299 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr, 1300 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr, 1301 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr, 1302 &sensor_dev_attr_fan1_input.dev_attr.attr, 1303 &sensor_dev_attr_fan1_min.dev_attr.attr, 1304 &sensor_dev_attr_fan1_div.dev_attr.attr, 1305 &sensor_dev_attr_fan1_alarm.dev_attr.attr, 1306 &sensor_dev_attr_fan2_input.dev_attr.attr, 1307 &sensor_dev_attr_fan2_min.dev_attr.attr, 1308 &sensor_dev_attr_fan2_div.dev_attr.attr, 1309 &sensor_dev_attr_fan2_alarm.dev_attr.attr, 1310 &sensor_dev_attr_fan3_input.dev_attr.attr, 1311 &sensor_dev_attr_fan3_min.dev_attr.attr, 1312 &sensor_dev_attr_fan3_div.dev_attr.attr, 1313 &sensor_dev_attr_fan3_alarm.dev_attr.attr, 1314 NULL 1315}; 1316 1317static const struct attribute_group w83792d_group = { 1318 .attrs = w83792d_attributes, 1319}; 1320 1321/* Return 0 if detection is successful, -ENODEV otherwise */ 1322static int 1323w83792d_detect(struct i2c_client *client, struct i2c_board_info *info) 1324{ 1325 struct i2c_adapter *adapter = client->adapter; 1326 int val1, val2; 1327 unsigned short address = client->addr; 1328 1329 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 1330 return -ENODEV; 1331 1332 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) 1333 return -ENODEV; 1334 1335 val1 = w83792d_read_value(client, W83792D_REG_BANK); 1336 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1337 /* Check for Winbond ID if in bank 0 */ 1338 if (!(val1 & 0x07)) { /* is Bank0 */ 1339 if ((!(val1 & 0x80) && val2 != 0xa3) || 1340 ((val1 & 0x80) && val2 != 0x5c)) 1341 return -ENODEV; 1342 } 1343 /* 1344 * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR 1345 * should match 1346 */ 1347 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address) 1348 return -ENODEV; 1349 1350 /* Put it now into bank 0 and Vendor ID High Byte */ 1351 w83792d_write_value(client, 1352 W83792D_REG_BANK, 1353 (w83792d_read_value(client, 1354 W83792D_REG_BANK) & 0x78) | 0x80); 1355 1356 /* Determine the chip type. */ 1357 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID); 1358 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1359 if (val1 != 0x7a || val2 != 0x5c) 1360 return -ENODEV; 1361 1362 strlcpy(info->type, "w83792d", I2C_NAME_SIZE); 1363 1364 return 0; 1365} 1366 1367static int 1368w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id) 1369{ 1370 struct w83792d_data *data; 1371 struct device *dev = &client->dev; 1372 int i, val1, err; 1373 1374 data = devm_kzalloc(dev, sizeof(struct w83792d_data), GFP_KERNEL); 1375 if (!data) 1376 return -ENOMEM; 1377 1378 i2c_set_clientdata(client, data); 1379 mutex_init(&data->update_lock); 1380 1381 err = w83792d_detect_subclients(client); 1382 if (err) 1383 return err; 1384 1385 /* Initialize the chip */ 1386 w83792d_init_client(client); 1387 1388 /* A few vars need to be filled upon startup */ 1389 for (i = 0; i < 7; i++) { 1390 data->fan_min[i] = w83792d_read_value(client, 1391 W83792D_REG_FAN_MIN[i]); 1392 } 1393 1394 /* Register sysfs hooks */ 1395 err = sysfs_create_group(&dev->kobj, &w83792d_group); 1396 if (err) 1397 goto exit_i2c_unregister; 1398 1399 /* 1400 * Read GPIO enable register to check if pins for fan 4,5 are used as 1401 * GPIO 1402 */ 1403 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN); 1404 1405 if (!(val1 & 0x40)) { 1406 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]); 1407 if (err) 1408 goto exit_remove_files; 1409 } 1410 1411 if (!(val1 & 0x20)) { 1412 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]); 1413 if (err) 1414 goto exit_remove_files; 1415 } 1416 1417 val1 = w83792d_read_value(client, W83792D_REG_PIN); 1418 if (val1 & 0x40) { 1419 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]); 1420 if (err) 1421 goto exit_remove_files; 1422 } 1423 1424 if (val1 & 0x04) { 1425 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]); 1426 if (err) 1427 goto exit_remove_files; 1428 } 1429 1430 data->hwmon_dev = hwmon_device_register(dev); 1431 if (IS_ERR(data->hwmon_dev)) { 1432 err = PTR_ERR(data->hwmon_dev); 1433 goto exit_remove_files; 1434 } 1435 1436 return 0; 1437 1438exit_remove_files: 1439 sysfs_remove_group(&dev->kobj, &w83792d_group); 1440 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1441 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]); 1442exit_i2c_unregister: 1443 if (data->lm75[0] != NULL) 1444 i2c_unregister_device(data->lm75[0]); 1445 if (data->lm75[1] != NULL) 1446 i2c_unregister_device(data->lm75[1]); 1447 return err; 1448} 1449 1450static int 1451w83792d_remove(struct i2c_client *client) 1452{ 1453 struct w83792d_data *data = i2c_get_clientdata(client); 1454 int i; 1455 1456 hwmon_device_unregister(data->hwmon_dev); 1457 sysfs_remove_group(&client->dev.kobj, &w83792d_group); 1458 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1459 sysfs_remove_group(&client->dev.kobj, 1460 &w83792d_group_fan[i]); 1461 1462 if (data->lm75[0] != NULL) 1463 i2c_unregister_device(data->lm75[0]); 1464 if (data->lm75[1] != NULL) 1465 i2c_unregister_device(data->lm75[1]); 1466 1467 return 0; 1468} 1469 1470static void 1471w83792d_init_client(struct i2c_client *client) 1472{ 1473 u8 temp2_cfg, temp3_cfg, vid_in_b; 1474 1475 if (init) 1476 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80); 1477 1478 /* 1479 * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0): 1480 * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of 1481 * vin0/vin1 can be modified by user; 1482 * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of 1483 * vin0/vin1 auto-updated, can NOT be modified by user. 1484 */ 1485 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B); 1486 w83792d_write_value(client, W83792D_REG_VID_IN_B, 1487 vid_in_b & 0xbf); 1488 1489 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG); 1490 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG); 1491 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG, 1492 temp2_cfg & 0xe6); 1493 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG, 1494 temp3_cfg & 0xe6); 1495 1496 /* Start monitoring */ 1497 w83792d_write_value(client, W83792D_REG_CONFIG, 1498 (w83792d_read_value(client, 1499 W83792D_REG_CONFIG) & 0xf7) 1500 | 0x01); 1501} 1502 1503static struct w83792d_data *w83792d_update_device(struct device *dev) 1504{ 1505 struct i2c_client *client = to_i2c_client(dev); 1506 struct w83792d_data *data = i2c_get_clientdata(client); 1507 int i, j; 1508 u8 reg_array_tmp[4], reg_tmp; 1509 1510 mutex_lock(&data->update_lock); 1511 1512 if (time_after 1513 (jiffies - data->last_updated, (unsigned long) (HZ * 3)) 1514 || time_before(jiffies, data->last_updated) || !data->valid) { 1515 dev_dbg(dev, "Starting device update\n"); 1516 1517 /* Update the voltages measured value and limits */ 1518 for (i = 0; i < 9; i++) { 1519 data->in[i] = w83792d_read_value(client, 1520 W83792D_REG_IN[i]); 1521 data->in_max[i] = w83792d_read_value(client, 1522 W83792D_REG_IN_MAX[i]); 1523 data->in_min[i] = w83792d_read_value(client, 1524 W83792D_REG_IN_MIN[i]); 1525 } 1526 data->low_bits = w83792d_read_value(client, 1527 W83792D_REG_LOW_BITS1) + 1528 (w83792d_read_value(client, 1529 W83792D_REG_LOW_BITS2) << 8); 1530 for (i = 0; i < 7; i++) { 1531 /* Update the Fan measured value and limits */ 1532 data->fan[i] = w83792d_read_value(client, 1533 W83792D_REG_FAN[i]); 1534 data->fan_min[i] = w83792d_read_value(client, 1535 W83792D_REG_FAN_MIN[i]); 1536 /* Update the PWM/DC Value and PWM/DC flag */ 1537 data->pwm[i] = w83792d_read_value(client, 1538 W83792D_REG_PWM[i]); 1539 } 1540 1541 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG); 1542 data->pwmenable[0] = reg_tmp & 0x03; 1543 data->pwmenable[1] = (reg_tmp>>2) & 0x03; 1544 data->pwmenable[2] = (reg_tmp>>4) & 0x03; 1545 1546 for (i = 0; i < 3; i++) { 1547 data->temp1[i] = w83792d_read_value(client, 1548 W83792D_REG_TEMP1[i]); 1549 } 1550 for (i = 0; i < 2; i++) { 1551 for (j = 0; j < 6; j++) { 1552 data->temp_add[i][j] = w83792d_read_value( 1553 client, W83792D_REG_TEMP_ADD[i][j]); 1554 } 1555 } 1556 1557 /* Update the Fan Divisor */ 1558 for (i = 0; i < 4; i++) { 1559 reg_array_tmp[i] = w83792d_read_value(client, 1560 W83792D_REG_FAN_DIV[i]); 1561 } 1562 data->fan_div[0] = reg_array_tmp[0] & 0x07; 1563 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07; 1564 data->fan_div[2] = reg_array_tmp[1] & 0x07; 1565 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07; 1566 data->fan_div[4] = reg_array_tmp[2] & 0x07; 1567 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07; 1568 data->fan_div[6] = reg_array_tmp[3] & 0x07; 1569 1570 /* Update the realtime status */ 1571 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) + 1572 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) + 1573 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16); 1574 1575 /* Update CaseOpen status and it's CLR_CHS. */ 1576 data->chassis = (w83792d_read_value(client, 1577 W83792D_REG_CHASSIS) >> 5) & 0x01; 1578 1579 /* Update Thermal Cruise/Smart Fan I target value */ 1580 for (i = 0; i < 3; i++) { 1581 data->thermal_cruise[i] = 1582 w83792d_read_value(client, 1583 W83792D_REG_THERMAL[i]) & 0x7f; 1584 } 1585 1586 /* Update Smart Fan I/II tolerance */ 1587 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]); 1588 data->tolerance[0] = reg_tmp & 0x0f; 1589 data->tolerance[1] = (reg_tmp >> 4) & 0x0f; 1590 data->tolerance[2] = w83792d_read_value(client, 1591 W83792D_REG_TOLERANCE[2]) & 0x0f; 1592 1593 /* Update Smart Fan II temperature points */ 1594 for (i = 0; i < 3; i++) { 1595 for (j = 0; j < 4; j++) { 1596 data->sf2_points[i][j] 1597 = w83792d_read_value(client, 1598 W83792D_REG_POINTS[i][j]) & 0x7f; 1599 } 1600 } 1601 1602 /* Update Smart Fan II duty cycle levels */ 1603 for (i = 0; i < 3; i++) { 1604 reg_tmp = w83792d_read_value(client, 1605 W83792D_REG_LEVELS[i][0]); 1606 data->sf2_levels[i][0] = reg_tmp & 0x0f; 1607 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f; 1608 reg_tmp = w83792d_read_value(client, 1609 W83792D_REG_LEVELS[i][2]); 1610 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f; 1611 data->sf2_levels[i][3] = reg_tmp & 0x0f; 1612 } 1613 1614 data->last_updated = jiffies; 1615 data->valid = 1; 1616 } 1617 1618 mutex_unlock(&data->update_lock); 1619 1620#ifdef DEBUG 1621 w83792d_print_debug(data, dev); 1622#endif 1623 1624 return data; 1625} 1626 1627#ifdef DEBUG 1628static void w83792d_print_debug(struct w83792d_data *data, struct device *dev) 1629{ 1630 int i = 0, j = 0; 1631 dev_dbg(dev, "==========The following is the debug message...========\n"); 1632 dev_dbg(dev, "9 set of Voltages: =====>\n"); 1633 for (i = 0; i < 9; i++) { 1634 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]); 1635 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]); 1636 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]); 1637 } 1638 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff); 1639 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8); 1640 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n"); 1641 for (i = 0; i < 7; i++) { 1642 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]); 1643 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]); 1644 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]); 1645 } 1646 dev_dbg(dev, "3 set of Temperatures: =====>\n"); 1647 for (i = 0; i < 3; i++) 1648 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]); 1649 1650 for (i = 0; i < 2; i++) { 1651 for (j = 0; j < 6; j++) { 1652 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j, 1653 data->temp_add[i][j]); 1654 } 1655 } 1656 1657 for (i = 0; i < 7; i++) 1658 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]); 1659 1660 dev_dbg(dev, "==========End of the debug message...================\n"); 1661 dev_dbg(dev, "\n"); 1662} 1663#endif 1664 1665module_i2c_driver(w83792d_driver); 1666 1667MODULE_AUTHOR("Shane Huang (Winbond)"); 1668MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6"); 1669MODULE_LICENSE("GPL"); 1670