1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 3 * w83792d.c - Part of lm_sensors, Linux kernel modules for hardware 4 * monitoring 5 * Copyright (C) 2004, 2005 Winbond Electronics Corp. 6 * Shane Huang, 7 * Rudolf Marek <r.marek@assembler.cz> 8 * 9 * Note: 10 * 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver. 11 * 2. This driver is only for Winbond W83792D C version device, there 12 * are also some motherboards with B version W83792D device. The 13 * calculation method to in6-in7(measured value, limits) is a little 14 * different between C and B version. C or B version can be identified 15 * by CR[0x49h]. 16 */ 17 18/* 19 * Supports following chips: 20 * 21 * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA 22 * w83792d 9 7 7 3 0x7a 0x5ca3 yes no 23 */ 24 25#include <linux/module.h> 26#include <linux/init.h> 27#include <linux/slab.h> 28#include <linux/i2c.h> 29#include <linux/hwmon.h> 30#include <linux/hwmon-sysfs.h> 31#include <linux/err.h> 32#include <linux/mutex.h> 33#include <linux/sysfs.h> 34#include <linux/jiffies.h> 35 36/* Addresses to scan */ 37static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, 38 I2C_CLIENT_END }; 39 40/* Insmod parameters */ 41 42static unsigned short force_subclients[4]; 43module_param_array(force_subclients, short, NULL, 0); 44MODULE_PARM_DESC(force_subclients, 45 "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}"); 46 47static bool init; 48module_param(init, bool, 0); 49MODULE_PARM_DESC(init, "Set to one to force chip initialization"); 50 51/* The W83792D registers */ 52static const u8 W83792D_REG_IN[9] = { 53 0x20, /* Vcore A in DataSheet */ 54 0x21, /* Vcore B in DataSheet */ 55 0x22, /* VIN0 in DataSheet */ 56 0x23, /* VIN1 in DataSheet */ 57 0x24, /* VIN2 in DataSheet */ 58 0x25, /* VIN3 in DataSheet */ 59 0x26, /* 5VCC in DataSheet */ 60 0xB0, /* 5VSB in DataSheet */ 61 0xB1 /* VBAT in DataSheet */ 62}; 63#define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */ 64#define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */ 65static const u8 W83792D_REG_IN_MAX[9] = { 66 0x2B, /* Vcore A High Limit in DataSheet */ 67 0x2D, /* Vcore B High Limit in DataSheet */ 68 0x2F, /* VIN0 High Limit in DataSheet */ 69 0x31, /* VIN1 High Limit in DataSheet */ 70 0x33, /* VIN2 High Limit in DataSheet */ 71 0x35, /* VIN3 High Limit in DataSheet */ 72 0x37, /* 5VCC High Limit in DataSheet */ 73 0xB4, /* 5VSB High Limit in DataSheet */ 74 0xB6 /* VBAT High Limit in DataSheet */ 75}; 76static const u8 W83792D_REG_IN_MIN[9] = { 77 0x2C, /* Vcore A Low Limit in DataSheet */ 78 0x2E, /* Vcore B Low Limit in DataSheet */ 79 0x30, /* VIN0 Low Limit in DataSheet */ 80 0x32, /* VIN1 Low Limit in DataSheet */ 81 0x34, /* VIN2 Low Limit in DataSheet */ 82 0x36, /* VIN3 Low Limit in DataSheet */ 83 0x38, /* 5VCC Low Limit in DataSheet */ 84 0xB5, /* 5VSB Low Limit in DataSheet */ 85 0xB7 /* VBAT Low Limit in DataSheet */ 86}; 87static const u8 W83792D_REG_FAN[7] = { 88 0x28, /* FAN 1 Count in DataSheet */ 89 0x29, /* FAN 2 Count in DataSheet */ 90 0x2A, /* FAN 3 Count in DataSheet */ 91 0xB8, /* FAN 4 Count in DataSheet */ 92 0xB9, /* FAN 5 Count in DataSheet */ 93 0xBA, /* FAN 6 Count in DataSheet */ 94 0xBE /* FAN 7 Count in DataSheet */ 95}; 96static const u8 W83792D_REG_FAN_MIN[7] = { 97 0x3B, /* FAN 1 Count Low Limit in DataSheet */ 98 0x3C, /* FAN 2 Count Low Limit in DataSheet */ 99 0x3D, /* FAN 3 Count Low Limit in DataSheet */ 100 0xBB, /* FAN 4 Count Low Limit in DataSheet */ 101 0xBC, /* FAN 5 Count Low Limit in DataSheet */ 102 0xBD, /* FAN 6 Count Low Limit in DataSheet */ 103 0xBF /* FAN 7 Count Low Limit in DataSheet */ 104}; 105#define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */ 106static const u8 W83792D_REG_FAN_DIV[4] = { 107 0x47, /* contains FAN2 and FAN1 Divisor */ 108 0x5B, /* contains FAN4 and FAN3 Divisor */ 109 0x5C, /* contains FAN6 and FAN5 Divisor */ 110 0x9E /* contains FAN7 Divisor. */ 111}; 112static const u8 W83792D_REG_PWM[7] = { 113 0x81, /* FAN 1 Duty Cycle, be used to control */ 114 0x83, /* FAN 2 Duty Cycle, be used to control */ 115 0x94, /* FAN 3 Duty Cycle, be used to control */ 116 0xA3, /* FAN 4 Duty Cycle, be used to control */ 117 0xA4, /* FAN 5 Duty Cycle, be used to control */ 118 0xA5, /* FAN 6 Duty Cycle, be used to control */ 119 0xA6 /* FAN 7 Duty Cycle, be used to control */ 120}; 121#define W83792D_REG_BANK 0x4E 122#define W83792D_REG_TEMP2_CONFIG 0xC2 123#define W83792D_REG_TEMP3_CONFIG 0xCA 124 125static const u8 W83792D_REG_TEMP1[3] = { 126 0x27, /* TEMP 1 in DataSheet */ 127 0x39, /* TEMP 1 Over in DataSheet */ 128 0x3A, /* TEMP 1 Hyst in DataSheet */ 129}; 130 131static const u8 W83792D_REG_TEMP_ADD[2][6] = { 132 { 0xC0, /* TEMP 2 in DataSheet */ 133 0xC1, /* TEMP 2(0.5 deg) in DataSheet */ 134 0xC5, /* TEMP 2 Over High part in DataSheet */ 135 0xC6, /* TEMP 2 Over Low part in DataSheet */ 136 0xC3, /* TEMP 2 Thyst High part in DataSheet */ 137 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */ 138 { 0xC8, /* TEMP 3 in DataSheet */ 139 0xC9, /* TEMP 3(0.5 deg) in DataSheet */ 140 0xCD, /* TEMP 3 Over High part in DataSheet */ 141 0xCE, /* TEMP 3 Over Low part in DataSheet */ 142 0xCB, /* TEMP 3 Thyst High part in DataSheet */ 143 0xCC } /* TEMP 3 Thyst Low part in DataSheet */ 144}; 145 146static const u8 W83792D_REG_THERMAL[3] = { 147 0x85, /* SmartFanI: Fan1 target value */ 148 0x86, /* SmartFanI: Fan2 target value */ 149 0x96 /* SmartFanI: Fan3 target value */ 150}; 151 152static const u8 W83792D_REG_TOLERANCE[3] = { 153 0x87, /* (bit3-0)SmartFan Fan1 tolerance */ 154 0x87, /* (bit7-4)SmartFan Fan2 tolerance */ 155 0x97 /* (bit3-0)SmartFan Fan3 tolerance */ 156}; 157 158static const u8 W83792D_REG_POINTS[3][4] = { 159 { 0x85, /* SmartFanII: Fan1 temp point 1 */ 160 0xE3, /* SmartFanII: Fan1 temp point 2 */ 161 0xE4, /* SmartFanII: Fan1 temp point 3 */ 162 0xE5 }, /* SmartFanII: Fan1 temp point 4 */ 163 { 0x86, /* SmartFanII: Fan2 temp point 1 */ 164 0xE6, /* SmartFanII: Fan2 temp point 2 */ 165 0xE7, /* SmartFanII: Fan2 temp point 3 */ 166 0xE8 }, /* SmartFanII: Fan2 temp point 4 */ 167 { 0x96, /* SmartFanII: Fan3 temp point 1 */ 168 0xE9, /* SmartFanII: Fan3 temp point 2 */ 169 0xEA, /* SmartFanII: Fan3 temp point 3 */ 170 0xEB } /* SmartFanII: Fan3 temp point 4 */ 171}; 172 173static const u8 W83792D_REG_LEVELS[3][4] = { 174 { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */ 175 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */ 176 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */ 177 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */ 178 { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */ 179 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */ 180 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */ 181 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */ 182 { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */ 183 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */ 184 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */ 185 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */ 186}; 187 188#define W83792D_REG_GPIO_EN 0x1A 189#define W83792D_REG_CONFIG 0x40 190#define W83792D_REG_VID_FANDIV 0x47 191#define W83792D_REG_CHIPID 0x49 192#define W83792D_REG_WCHIPID 0x58 193#define W83792D_REG_CHIPMAN 0x4F 194#define W83792D_REG_PIN 0x4B 195#define W83792D_REG_I2C_SUBADDR 0x4A 196 197#define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */ 198#define W83792D_REG_ALARM2 0xAA /* realtime status register2 */ 199#define W83792D_REG_ALARM3 0xAB /* realtime status register3 */ 200#define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */ 201#define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */ 202 203/* control in0/in1 's limit modifiability */ 204#define W83792D_REG_VID_IN_B 0x17 205 206#define W83792D_REG_VBAT 0x5D 207#define W83792D_REG_I2C_ADDR 0x48 208 209/* 210 * Conversions. Rounding and limit checking is only done on the TO_REG 211 * variants. Note that you should be a bit careful with which arguments 212 * these macros are called: arguments may be evaluated more than once. 213 * Fixing this is just not worth it. 214 */ 215#define IN_FROM_REG(nr, val) (((nr) <= 1) ? ((val) * 2) : \ 216 ((((nr) == 6) || ((nr) == 7)) ? ((val) * 6) : ((val) * 4))) 217#define IN_TO_REG(nr, val) (((nr) <= 1) ? ((val) / 2) : \ 218 ((((nr) == 6) || ((nr) == 7)) ? ((val) / 6) : ((val) / 4))) 219 220static inline u8 221FAN_TO_REG(long rpm, int div) 222{ 223 if (rpm == 0) 224 return 255; 225 rpm = clamp_val(rpm, 1, 1000000); 226 return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254); 227} 228 229#define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \ 230 ((val) == 255 ? 0 : \ 231 1350000 / ((val) * (div)))) 232 233/* for temp1 */ 234#define TEMP1_TO_REG(val) (clamp_val(((val) < 0 ? (val) + 0x100 * 1000 \ 235 : (val)) / 1000, 0, 0xff)) 236#define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000) 237/* for temp2 and temp3, because they need additional resolution */ 238#define TEMP_ADD_FROM_REG(val1, val2) \ 239 ((((val1) & 0x80 ? (val1)-0x100 \ 240 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0)) 241#define TEMP_ADD_TO_REG_HIGH(val) \ 242 (clamp_val(((val) < 0 ? (val) + 0x100 * 1000 : (val)) / 1000, 0, 0xff)) 243#define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00) 244 245#define DIV_FROM_REG(val) (1 << (val)) 246 247static inline u8 248DIV_TO_REG(long val) 249{ 250 int i; 251 val = clamp_val(val, 1, 128) >> 1; 252 for (i = 0; i < 7; i++) { 253 if (val == 0) 254 break; 255 val >>= 1; 256 } 257 return (u8)i; 258} 259 260struct w83792d_data { 261 struct device *hwmon_dev; 262 263 struct mutex update_lock; 264 bool valid; /* true if following fields are valid */ 265 unsigned long last_updated; /* In jiffies */ 266 267 u8 in[9]; /* Register value */ 268 u8 in_max[9]; /* Register value */ 269 u8 in_min[9]; /* Register value */ 270 u16 low_bits; /* Additional resolution to voltage in6-0 */ 271 u8 fan[7]; /* Register value */ 272 u8 fan_min[7]; /* Register value */ 273 u8 temp1[3]; /* current, over, thyst */ 274 u8 temp_add[2][6]; /* Register value */ 275 u8 fan_div[7]; /* Register encoding, shifted right */ 276 u8 pwm[7]; /* The 7 PWM outputs */ 277 u8 pwmenable[3]; 278 u32 alarms; /* realtime status register encoding,combined */ 279 u8 chassis; /* Chassis status */ 280 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */ 281 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */ 282 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */ 283 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */ 284}; 285 286static int w83792d_probe(struct i2c_client *client); 287static int w83792d_detect(struct i2c_client *client, 288 struct i2c_board_info *info); 289static void w83792d_remove(struct i2c_client *client); 290static struct w83792d_data *w83792d_update_device(struct device *dev); 291 292#ifdef DEBUG 293static void w83792d_print_debug(struct w83792d_data *data, struct device *dev); 294#endif 295 296static void w83792d_init_client(struct i2c_client *client); 297 298static const struct i2c_device_id w83792d_id[] = { 299 { "w83792d", 0 }, 300 { } 301}; 302MODULE_DEVICE_TABLE(i2c, w83792d_id); 303 304static struct i2c_driver w83792d_driver = { 305 .class = I2C_CLASS_HWMON, 306 .driver = { 307 .name = "w83792d", 308 }, 309 .probe = w83792d_probe, 310 .remove = w83792d_remove, 311 .id_table = w83792d_id, 312 .detect = w83792d_detect, 313 .address_list = normal_i2c, 314}; 315 316static inline long in_count_from_reg(int nr, struct w83792d_data *data) 317{ 318 /* in7 and in8 do not have low bits, but the formula still works */ 319 return (data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03); 320} 321 322/* 323 * The SMBus locks itself. The Winbond W83792D chip has a bank register, 324 * but the driver only accesses registers in bank 0, so we don't have 325 * to switch banks and lock access between switches. 326 */ 327static inline int w83792d_read_value(struct i2c_client *client, u8 reg) 328{ 329 return i2c_smbus_read_byte_data(client, reg); 330} 331 332static inline int 333w83792d_write_value(struct i2c_client *client, u8 reg, u8 value) 334{ 335 return i2c_smbus_write_byte_data(client, reg, value); 336} 337 338/* following are the sysfs callback functions */ 339static ssize_t show_in(struct device *dev, struct device_attribute *attr, 340 char *buf) 341{ 342 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 343 int nr = sensor_attr->index; 344 struct w83792d_data *data = w83792d_update_device(dev); 345 return sprintf(buf, "%ld\n", 346 IN_FROM_REG(nr, in_count_from_reg(nr, data))); 347} 348 349#define show_in_reg(reg) \ 350static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ 351 char *buf) \ 352{ \ 353 struct sensor_device_attribute *sensor_attr \ 354 = to_sensor_dev_attr(attr); \ 355 int nr = sensor_attr->index; \ 356 struct w83792d_data *data = w83792d_update_device(dev); \ 357 return sprintf(buf, "%ld\n", \ 358 (long)(IN_FROM_REG(nr, data->reg[nr]) * 4)); \ 359} 360 361show_in_reg(in_min); 362show_in_reg(in_max); 363 364#define store_in_reg(REG, reg) \ 365static ssize_t store_in_##reg(struct device *dev, \ 366 struct device_attribute *attr, \ 367 const char *buf, size_t count) \ 368{ \ 369 struct sensor_device_attribute *sensor_attr \ 370 = to_sensor_dev_attr(attr); \ 371 int nr = sensor_attr->index; \ 372 struct i2c_client *client = to_i2c_client(dev); \ 373 struct w83792d_data *data = i2c_get_clientdata(client); \ 374 unsigned long val; \ 375 int err = kstrtoul(buf, 10, &val); \ 376 if (err) \ 377 return err; \ 378 mutex_lock(&data->update_lock); \ 379 data->in_##reg[nr] = clamp_val(IN_TO_REG(nr, val) / 4, 0, 255); \ 380 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], \ 381 data->in_##reg[nr]); \ 382 mutex_unlock(&data->update_lock); \ 383 \ 384 return count; \ 385} 386store_in_reg(MIN, min); 387store_in_reg(MAX, max); 388 389#define show_fan_reg(reg) \ 390static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ 391 char *buf) \ 392{ \ 393 struct sensor_device_attribute *sensor_attr \ 394 = to_sensor_dev_attr(attr); \ 395 int nr = sensor_attr->index - 1; \ 396 struct w83792d_data *data = w83792d_update_device(dev); \ 397 return sprintf(buf, "%d\n", \ 398 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \ 399} 400 401show_fan_reg(fan); 402show_fan_reg(fan_min); 403 404static ssize_t 405store_fan_min(struct device *dev, struct device_attribute *attr, 406 const char *buf, size_t count) 407{ 408 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 409 int nr = sensor_attr->index - 1; 410 struct i2c_client *client = to_i2c_client(dev); 411 struct w83792d_data *data = i2c_get_clientdata(client); 412 unsigned long val; 413 int err; 414 415 err = kstrtoul(buf, 10, &val); 416 if (err) 417 return err; 418 419 mutex_lock(&data->update_lock); 420 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); 421 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], 422 data->fan_min[nr]); 423 mutex_unlock(&data->update_lock); 424 425 return count; 426} 427 428static ssize_t 429show_fan_div(struct device *dev, struct device_attribute *attr, 430 char *buf) 431{ 432 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 433 int nr = sensor_attr->index; 434 struct w83792d_data *data = w83792d_update_device(dev); 435 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1])); 436} 437 438/* 439 * Note: we save and restore the fan minimum here, because its value is 440 * determined in part by the fan divisor. This follows the principle of 441 * least surprise; the user doesn't expect the fan minimum to change just 442 * because the divisor changed. 443 */ 444static ssize_t 445store_fan_div(struct device *dev, struct device_attribute *attr, 446 const char *buf, size_t count) 447{ 448 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 449 int nr = sensor_attr->index - 1; 450 struct i2c_client *client = to_i2c_client(dev); 451 struct w83792d_data *data = i2c_get_clientdata(client); 452 unsigned long min; 453 /*u8 reg;*/ 454 u8 fan_div_reg = 0; 455 u8 tmp_fan_div; 456 unsigned long val; 457 int err; 458 459 err = kstrtoul(buf, 10, &val); 460 if (err) 461 return err; 462 463 /* Save fan_min */ 464 mutex_lock(&data->update_lock); 465 min = FAN_FROM_REG(data->fan_min[nr], 466 DIV_FROM_REG(data->fan_div[nr])); 467 468 data->fan_div[nr] = DIV_TO_REG(val); 469 470 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]); 471 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8; 472 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70) 473 : ((data->fan_div[nr]) & 0x07); 474 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1], 475 fan_div_reg | tmp_fan_div); 476 477 /* Restore fan_min */ 478 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); 479 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]); 480 mutex_unlock(&data->update_lock); 481 482 return count; 483} 484 485/* read/write the temperature1, includes measured value and limits */ 486 487static ssize_t show_temp1(struct device *dev, struct device_attribute *attr, 488 char *buf) 489{ 490 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 491 int nr = sensor_attr->index; 492 struct w83792d_data *data = w83792d_update_device(dev); 493 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr])); 494} 495 496static ssize_t store_temp1(struct device *dev, struct device_attribute *attr, 497 const char *buf, size_t count) 498{ 499 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 500 int nr = sensor_attr->index; 501 struct i2c_client *client = to_i2c_client(dev); 502 struct w83792d_data *data = i2c_get_clientdata(client); 503 long val; 504 int err; 505 506 err = kstrtol(buf, 10, &val); 507 if (err) 508 return err; 509 510 mutex_lock(&data->update_lock); 511 data->temp1[nr] = TEMP1_TO_REG(val); 512 w83792d_write_value(client, W83792D_REG_TEMP1[nr], 513 data->temp1[nr]); 514 mutex_unlock(&data->update_lock); 515 516 return count; 517} 518 519/* read/write the temperature2-3, includes measured value and limits */ 520 521static ssize_t show_temp23(struct device *dev, struct device_attribute *attr, 522 char *buf) 523{ 524 struct sensor_device_attribute_2 *sensor_attr 525 = to_sensor_dev_attr_2(attr); 526 int nr = sensor_attr->nr; 527 int index = sensor_attr->index; 528 struct w83792d_data *data = w83792d_update_device(dev); 529 return sprintf(buf, "%ld\n", 530 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index], 531 data->temp_add[nr][index+1])); 532} 533 534static ssize_t store_temp23(struct device *dev, struct device_attribute *attr, 535 const char *buf, size_t count) 536{ 537 struct sensor_device_attribute_2 *sensor_attr 538 = to_sensor_dev_attr_2(attr); 539 int nr = sensor_attr->nr; 540 int index = sensor_attr->index; 541 struct i2c_client *client = to_i2c_client(dev); 542 struct w83792d_data *data = i2c_get_clientdata(client); 543 long val; 544 int err; 545 546 err = kstrtol(buf, 10, &val); 547 if (err) 548 return err; 549 550 mutex_lock(&data->update_lock); 551 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val); 552 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val); 553 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index], 554 data->temp_add[nr][index]); 555 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1], 556 data->temp_add[nr][index+1]); 557 mutex_unlock(&data->update_lock); 558 559 return count; 560} 561 562/* get realtime status of all sensors items: voltage, temp, fan */ 563static ssize_t 564alarms_show(struct device *dev, struct device_attribute *attr, char *buf) 565{ 566 struct w83792d_data *data = w83792d_update_device(dev); 567 return sprintf(buf, "%d\n", data->alarms); 568} 569 570static ssize_t show_alarm(struct device *dev, 571 struct device_attribute *attr, char *buf) 572{ 573 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 574 int nr = sensor_attr->index; 575 struct w83792d_data *data = w83792d_update_device(dev); 576 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1); 577} 578 579static ssize_t 580show_pwm(struct device *dev, struct device_attribute *attr, 581 char *buf) 582{ 583 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 584 int nr = sensor_attr->index; 585 struct w83792d_data *data = w83792d_update_device(dev); 586 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4); 587} 588 589static ssize_t 590show_pwmenable(struct device *dev, struct device_attribute *attr, 591 char *buf) 592{ 593 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 594 int nr = sensor_attr->index - 1; 595 struct w83792d_data *data = w83792d_update_device(dev); 596 long pwm_enable_tmp = 1; 597 598 switch (data->pwmenable[nr]) { 599 case 0: 600 pwm_enable_tmp = 1; /* manual mode */ 601 break; 602 case 1: 603 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */ 604 break; 605 case 2: 606 pwm_enable_tmp = 2; /* Smart Fan II */ 607 break; 608 } 609 610 return sprintf(buf, "%ld\n", pwm_enable_tmp); 611} 612 613static ssize_t 614store_pwm(struct device *dev, struct device_attribute *attr, 615 const char *buf, size_t count) 616{ 617 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 618 int nr = sensor_attr->index; 619 struct i2c_client *client = to_i2c_client(dev); 620 struct w83792d_data *data = i2c_get_clientdata(client); 621 unsigned long val; 622 int err; 623 624 err = kstrtoul(buf, 10, &val); 625 if (err) 626 return err; 627 val = clamp_val(val, 0, 255) >> 4; 628 629 mutex_lock(&data->update_lock); 630 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0; 631 data->pwm[nr] = val; 632 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 633 mutex_unlock(&data->update_lock); 634 635 return count; 636} 637 638static ssize_t 639store_pwmenable(struct device *dev, struct device_attribute *attr, 640 const char *buf, size_t count) 641{ 642 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 643 int nr = sensor_attr->index - 1; 644 struct i2c_client *client = to_i2c_client(dev); 645 struct w83792d_data *data = i2c_get_clientdata(client); 646 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp; 647 unsigned long val; 648 int err; 649 650 err = kstrtoul(buf, 10, &val); 651 if (err) 652 return err; 653 654 if (val < 1 || val > 3) 655 return -EINVAL; 656 657 mutex_lock(&data->update_lock); 658 switch (val) { 659 case 1: 660 data->pwmenable[nr] = 0; /* manual mode */ 661 break; 662 case 2: 663 data->pwmenable[nr] = 2; /* Smart Fan II */ 664 break; 665 case 3: 666 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */ 667 break; 668 } 669 cfg1_tmp = data->pwmenable[0]; 670 cfg2_tmp = (data->pwmenable[1]) << 2; 671 cfg3_tmp = (data->pwmenable[2]) << 4; 672 cfg4_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG) & 0xc0; 673 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp; 674 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp); 675 mutex_unlock(&data->update_lock); 676 677 return count; 678} 679 680static ssize_t 681show_pwm_mode(struct device *dev, struct device_attribute *attr, 682 char *buf) 683{ 684 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 685 int nr = sensor_attr->index; 686 struct w83792d_data *data = w83792d_update_device(dev); 687 return sprintf(buf, "%d\n", data->pwm[nr] >> 7); 688} 689 690static ssize_t 691store_pwm_mode(struct device *dev, struct device_attribute *attr, 692 const char *buf, size_t count) 693{ 694 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 695 int nr = sensor_attr->index; 696 struct i2c_client *client = to_i2c_client(dev); 697 struct w83792d_data *data = i2c_get_clientdata(client); 698 unsigned long val; 699 int err; 700 701 err = kstrtoul(buf, 10, &val); 702 if (err) 703 return err; 704 if (val > 1) 705 return -EINVAL; 706 707 mutex_lock(&data->update_lock); 708 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]); 709 if (val) { /* PWM mode */ 710 data->pwm[nr] |= 0x80; 711 } else { /* DC mode */ 712 data->pwm[nr] &= 0x7f; 713 } 714 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 715 mutex_unlock(&data->update_lock); 716 717 return count; 718} 719 720static ssize_t 721intrusion0_alarm_show(struct device *dev, struct device_attribute *attr, 722 char *buf) 723{ 724 struct w83792d_data *data = w83792d_update_device(dev); 725 return sprintf(buf, "%d\n", data->chassis); 726} 727 728static ssize_t 729intrusion0_alarm_store(struct device *dev, struct device_attribute *attr, 730 const char *buf, size_t count) 731{ 732 struct i2c_client *client = to_i2c_client(dev); 733 struct w83792d_data *data = i2c_get_clientdata(client); 734 unsigned long val; 735 u8 reg; 736 737 if (kstrtoul(buf, 10, &val) || val != 0) 738 return -EINVAL; 739 740 mutex_lock(&data->update_lock); 741 reg = w83792d_read_value(client, W83792D_REG_CHASSIS_CLR); 742 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, reg | 0x80); 743 data->valid = false; /* Force cache refresh */ 744 mutex_unlock(&data->update_lock); 745 746 return count; 747} 748 749/* For Smart Fan I / Thermal Cruise */ 750static ssize_t 751show_thermal_cruise(struct device *dev, struct device_attribute *attr, 752 char *buf) 753{ 754 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 755 int nr = sensor_attr->index; 756 struct w83792d_data *data = w83792d_update_device(dev); 757 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]); 758} 759 760static ssize_t 761store_thermal_cruise(struct device *dev, struct device_attribute *attr, 762 const char *buf, size_t count) 763{ 764 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 765 int nr = sensor_attr->index - 1; 766 struct i2c_client *client = to_i2c_client(dev); 767 struct w83792d_data *data = i2c_get_clientdata(client); 768 u8 target_tmp = 0, target_mask = 0; 769 unsigned long val; 770 int err; 771 772 err = kstrtoul(buf, 10, &val); 773 if (err) 774 return err; 775 776 target_tmp = val; 777 target_tmp = target_tmp & 0x7f; 778 mutex_lock(&data->update_lock); 779 target_mask = w83792d_read_value(client, 780 W83792D_REG_THERMAL[nr]) & 0x80; 781 data->thermal_cruise[nr] = clamp_val(target_tmp, 0, 255); 782 w83792d_write_value(client, W83792D_REG_THERMAL[nr], 783 (data->thermal_cruise[nr]) | target_mask); 784 mutex_unlock(&data->update_lock); 785 786 return count; 787} 788 789/* For Smart Fan I/Thermal Cruise and Smart Fan II */ 790static ssize_t 791show_tolerance(struct device *dev, struct device_attribute *attr, 792 char *buf) 793{ 794 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 795 int nr = sensor_attr->index; 796 struct w83792d_data *data = w83792d_update_device(dev); 797 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]); 798} 799 800static ssize_t 801store_tolerance(struct device *dev, struct device_attribute *attr, 802 const char *buf, size_t count) 803{ 804 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 805 int nr = sensor_attr->index - 1; 806 struct i2c_client *client = to_i2c_client(dev); 807 struct w83792d_data *data = i2c_get_clientdata(client); 808 u8 tol_tmp, tol_mask; 809 unsigned long val; 810 int err; 811 812 err = kstrtoul(buf, 10, &val); 813 if (err) 814 return err; 815 816 mutex_lock(&data->update_lock); 817 tol_mask = w83792d_read_value(client, 818 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0); 819 tol_tmp = clamp_val(val, 0, 15); 820 tol_tmp &= 0x0f; 821 data->tolerance[nr] = tol_tmp; 822 if (nr == 1) 823 tol_tmp <<= 4; 824 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr], 825 tol_mask | tol_tmp); 826 mutex_unlock(&data->update_lock); 827 828 return count; 829} 830 831/* For Smart Fan II */ 832static ssize_t 833show_sf2_point(struct device *dev, struct device_attribute *attr, 834 char *buf) 835{ 836 struct sensor_device_attribute_2 *sensor_attr 837 = to_sensor_dev_attr_2(attr); 838 int nr = sensor_attr->nr; 839 int index = sensor_attr->index; 840 struct w83792d_data *data = w83792d_update_device(dev); 841 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]); 842} 843 844static ssize_t 845store_sf2_point(struct device *dev, struct device_attribute *attr, 846 const char *buf, size_t count) 847{ 848 struct sensor_device_attribute_2 *sensor_attr 849 = to_sensor_dev_attr_2(attr); 850 int nr = sensor_attr->nr - 1; 851 int index = sensor_attr->index - 1; 852 struct i2c_client *client = to_i2c_client(dev); 853 struct w83792d_data *data = i2c_get_clientdata(client); 854 u8 mask_tmp = 0; 855 unsigned long val; 856 int err; 857 858 err = kstrtoul(buf, 10, &val); 859 if (err) 860 return err; 861 862 mutex_lock(&data->update_lock); 863 data->sf2_points[index][nr] = clamp_val(val, 0, 127); 864 mask_tmp = w83792d_read_value(client, 865 W83792D_REG_POINTS[index][nr]) & 0x80; 866 w83792d_write_value(client, W83792D_REG_POINTS[index][nr], 867 mask_tmp|data->sf2_points[index][nr]); 868 mutex_unlock(&data->update_lock); 869 870 return count; 871} 872 873static ssize_t 874show_sf2_level(struct device *dev, struct device_attribute *attr, 875 char *buf) 876{ 877 struct sensor_device_attribute_2 *sensor_attr 878 = to_sensor_dev_attr_2(attr); 879 int nr = sensor_attr->nr; 880 int index = sensor_attr->index; 881 struct w83792d_data *data = w83792d_update_device(dev); 882 return sprintf(buf, "%d\n", 883 (((data->sf2_levels[index-1][nr]) * 100) / 15)); 884} 885 886static ssize_t 887store_sf2_level(struct device *dev, struct device_attribute *attr, 888 const char *buf, size_t count) 889{ 890 struct sensor_device_attribute_2 *sensor_attr 891 = to_sensor_dev_attr_2(attr); 892 int nr = sensor_attr->nr; 893 int index = sensor_attr->index - 1; 894 struct i2c_client *client = to_i2c_client(dev); 895 struct w83792d_data *data = i2c_get_clientdata(client); 896 u8 mask_tmp = 0, level_tmp = 0; 897 unsigned long val; 898 int err; 899 900 err = kstrtoul(buf, 10, &val); 901 if (err) 902 return err; 903 904 mutex_lock(&data->update_lock); 905 data->sf2_levels[index][nr] = clamp_val((val * 15) / 100, 0, 15); 906 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr]) 907 & ((nr == 3) ? 0xf0 : 0x0f); 908 if (nr == 3) 909 level_tmp = data->sf2_levels[index][nr]; 910 else 911 level_tmp = data->sf2_levels[index][nr] << 4; 912 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], 913 level_tmp | mask_tmp); 914 mutex_unlock(&data->update_lock); 915 916 return count; 917} 918 919 920static int 921w83792d_detect_subclients(struct i2c_client *new_client) 922{ 923 int i, id; 924 int address = new_client->addr; 925 u8 val; 926 struct i2c_adapter *adapter = new_client->adapter; 927 928 id = i2c_adapter_id(adapter); 929 if (force_subclients[0] == id && force_subclients[1] == address) { 930 for (i = 2; i <= 3; i++) { 931 if (force_subclients[i] < 0x48 || 932 force_subclients[i] > 0x4f) { 933 dev_err(&new_client->dev, 934 "invalid subclient address %d; must be 0x48-0x4f\n", 935 force_subclients[i]); 936 return -ENODEV; 937 } 938 } 939 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR, 940 (force_subclients[2] & 0x07) | 941 ((force_subclients[3] & 0x07) << 4)); 942 } 943 944 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR); 945 946 if (!(val & 0x88) && (val & 0x7) == ((val >> 4) & 0x7)) { 947 dev_err(&new_client->dev, 948 "duplicate addresses 0x%x, use force_subclient\n", 0x48 + (val & 0x7)); 949 return -ENODEV; 950 } 951 952 if (!(val & 0x08)) 953 devm_i2c_new_dummy_device(&new_client->dev, adapter, 0x48 + (val & 0x7)); 954 955 if (!(val & 0x80)) 956 devm_i2c_new_dummy_device(&new_client->dev, adapter, 0x48 + ((val >> 4) & 0x7)); 957 958 return 0; 959} 960 961static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); 962static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); 963static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); 964static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); 965static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4); 966static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5); 967static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6); 968static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7); 969static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8); 970static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO, 971 show_in_min, store_in_min, 0); 972static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, 973 show_in_min, store_in_min, 1); 974static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, 975 show_in_min, store_in_min, 2); 976static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO, 977 show_in_min, store_in_min, 3); 978static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO, 979 show_in_min, store_in_min, 4); 980static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO, 981 show_in_min, store_in_min, 5); 982static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO, 983 show_in_min, store_in_min, 6); 984static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO, 985 show_in_min, store_in_min, 7); 986static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO, 987 show_in_min, store_in_min, 8); 988static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO, 989 show_in_max, store_in_max, 0); 990static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, 991 show_in_max, store_in_max, 1); 992static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, 993 show_in_max, store_in_max, 2); 994static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO, 995 show_in_max, store_in_max, 3); 996static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO, 997 show_in_max, store_in_max, 4); 998static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO, 999 show_in_max, store_in_max, 5); 1000static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO, 1001 show_in_max, store_in_max, 6); 1002static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO, 1003 show_in_max, store_in_max, 7); 1004static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO, 1005 show_in_max, store_in_max, 8); 1006static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0); 1007static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0); 1008static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0); 1009static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, 1010 show_temp1, store_temp1, 0, 1); 1011static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23, 1012 store_temp23, 0, 2); 1013static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23, 1014 store_temp23, 1, 2); 1015static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, 1016 show_temp1, store_temp1, 0, 2); 1017static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, 1018 show_temp23, store_temp23, 0, 4); 1019static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, 1020 show_temp23, store_temp23, 1, 4); 1021static DEVICE_ATTR_RO(alarms); 1022static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); 1023static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); 1024static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2); 1025static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3); 1026static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4); 1027static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5); 1028static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6); 1029static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7); 1030static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8); 1031static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9); 1032static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10); 1033static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11); 1034static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12); 1035static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15); 1036static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19); 1037static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20); 1038static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21); 1039static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22); 1040static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23); 1041static DEVICE_ATTR_RW(intrusion0_alarm); 1042static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0); 1043static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1); 1044static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2); 1045static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3); 1046static SENSOR_DEVICE_ATTR(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4); 1047static SENSOR_DEVICE_ATTR(pwm6, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 5); 1048static SENSOR_DEVICE_ATTR(pwm7, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 6); 1049static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, 1050 show_pwmenable, store_pwmenable, 1); 1051static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, 1052 show_pwmenable, store_pwmenable, 2); 1053static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, 1054 show_pwmenable, store_pwmenable, 3); 1055static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, 1056 show_pwm_mode, store_pwm_mode, 0); 1057static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, 1058 show_pwm_mode, store_pwm_mode, 1); 1059static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, 1060 show_pwm_mode, store_pwm_mode, 2); 1061static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, 1062 show_pwm_mode, store_pwm_mode, 3); 1063static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO, 1064 show_pwm_mode, store_pwm_mode, 4); 1065static SENSOR_DEVICE_ATTR(pwm6_mode, S_IWUSR | S_IRUGO, 1066 show_pwm_mode, store_pwm_mode, 5); 1067static SENSOR_DEVICE_ATTR(pwm7_mode, S_IWUSR | S_IRUGO, 1068 show_pwm_mode, store_pwm_mode, 6); 1069static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO, 1070 show_tolerance, store_tolerance, 1); 1071static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO, 1072 show_tolerance, store_tolerance, 2); 1073static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO, 1074 show_tolerance, store_tolerance, 3); 1075static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO, 1076 show_thermal_cruise, store_thermal_cruise, 1); 1077static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO, 1078 show_thermal_cruise, store_thermal_cruise, 2); 1079static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO, 1080 show_thermal_cruise, store_thermal_cruise, 3); 1081static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR, 1082 show_sf2_point, store_sf2_point, 1, 1); 1083static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR, 1084 show_sf2_point, store_sf2_point, 2, 1); 1085static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR, 1086 show_sf2_point, store_sf2_point, 3, 1); 1087static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR, 1088 show_sf2_point, store_sf2_point, 4, 1); 1089static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR, 1090 show_sf2_point, store_sf2_point, 1, 2); 1091static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR, 1092 show_sf2_point, store_sf2_point, 2, 2); 1093static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR, 1094 show_sf2_point, store_sf2_point, 3, 2); 1095static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR, 1096 show_sf2_point, store_sf2_point, 4, 2); 1097static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR, 1098 show_sf2_point, store_sf2_point, 1, 3); 1099static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR, 1100 show_sf2_point, store_sf2_point, 2, 3); 1101static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR, 1102 show_sf2_point, store_sf2_point, 3, 3); 1103static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR, 1104 show_sf2_point, store_sf2_point, 4, 3); 1105static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR, 1106 show_sf2_level, store_sf2_level, 1, 1); 1107static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR, 1108 show_sf2_level, store_sf2_level, 2, 1); 1109static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR, 1110 show_sf2_level, store_sf2_level, 3, 1); 1111static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR, 1112 show_sf2_level, store_sf2_level, 1, 2); 1113static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR, 1114 show_sf2_level, store_sf2_level, 2, 2); 1115static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR, 1116 show_sf2_level, store_sf2_level, 3, 2); 1117static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR, 1118 show_sf2_level, store_sf2_level, 1, 3); 1119static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR, 1120 show_sf2_level, store_sf2_level, 2, 3); 1121static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR, 1122 show_sf2_level, store_sf2_level, 3, 3); 1123static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1); 1124static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2); 1125static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3); 1126static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4); 1127static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5); 1128static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6); 1129static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7); 1130static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, 1131 show_fan_min, store_fan_min, 1); 1132static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, 1133 show_fan_min, store_fan_min, 2); 1134static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, 1135 show_fan_min, store_fan_min, 3); 1136static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, 1137 show_fan_min, store_fan_min, 4); 1138static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO, 1139 show_fan_min, store_fan_min, 5); 1140static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO, 1141 show_fan_min, store_fan_min, 6); 1142static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO, 1143 show_fan_min, store_fan_min, 7); 1144static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO, 1145 show_fan_div, store_fan_div, 1); 1146static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO, 1147 show_fan_div, store_fan_div, 2); 1148static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO, 1149 show_fan_div, store_fan_div, 3); 1150static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO, 1151 show_fan_div, store_fan_div, 4); 1152static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO, 1153 show_fan_div, store_fan_div, 5); 1154static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO, 1155 show_fan_div, store_fan_div, 6); 1156static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO, 1157 show_fan_div, store_fan_div, 7); 1158 1159static struct attribute *w83792d_attributes_fan[4][7] = { 1160 { 1161 &sensor_dev_attr_fan4_input.dev_attr.attr, 1162 &sensor_dev_attr_fan4_min.dev_attr.attr, 1163 &sensor_dev_attr_fan4_div.dev_attr.attr, 1164 &sensor_dev_attr_fan4_alarm.dev_attr.attr, 1165 &sensor_dev_attr_pwm4.dev_attr.attr, 1166 &sensor_dev_attr_pwm4_mode.dev_attr.attr, 1167 NULL 1168 }, { 1169 &sensor_dev_attr_fan5_input.dev_attr.attr, 1170 &sensor_dev_attr_fan5_min.dev_attr.attr, 1171 &sensor_dev_attr_fan5_div.dev_attr.attr, 1172 &sensor_dev_attr_fan5_alarm.dev_attr.attr, 1173 &sensor_dev_attr_pwm5.dev_attr.attr, 1174 &sensor_dev_attr_pwm5_mode.dev_attr.attr, 1175 NULL 1176 }, { 1177 &sensor_dev_attr_fan6_input.dev_attr.attr, 1178 &sensor_dev_attr_fan6_min.dev_attr.attr, 1179 &sensor_dev_attr_fan6_div.dev_attr.attr, 1180 &sensor_dev_attr_fan6_alarm.dev_attr.attr, 1181 &sensor_dev_attr_pwm6.dev_attr.attr, 1182 &sensor_dev_attr_pwm6_mode.dev_attr.attr, 1183 NULL 1184 }, { 1185 &sensor_dev_attr_fan7_input.dev_attr.attr, 1186 &sensor_dev_attr_fan7_min.dev_attr.attr, 1187 &sensor_dev_attr_fan7_div.dev_attr.attr, 1188 &sensor_dev_attr_fan7_alarm.dev_attr.attr, 1189 &sensor_dev_attr_pwm7.dev_attr.attr, 1190 &sensor_dev_attr_pwm7_mode.dev_attr.attr, 1191 NULL 1192 } 1193}; 1194 1195static const struct attribute_group w83792d_group_fan[4] = { 1196 { .attrs = w83792d_attributes_fan[0] }, 1197 { .attrs = w83792d_attributes_fan[1] }, 1198 { .attrs = w83792d_attributes_fan[2] }, 1199 { .attrs = w83792d_attributes_fan[3] }, 1200}; 1201 1202static struct attribute *w83792d_attributes[] = { 1203 &sensor_dev_attr_in0_input.dev_attr.attr, 1204 &sensor_dev_attr_in0_max.dev_attr.attr, 1205 &sensor_dev_attr_in0_min.dev_attr.attr, 1206 &sensor_dev_attr_in1_input.dev_attr.attr, 1207 &sensor_dev_attr_in1_max.dev_attr.attr, 1208 &sensor_dev_attr_in1_min.dev_attr.attr, 1209 &sensor_dev_attr_in2_input.dev_attr.attr, 1210 &sensor_dev_attr_in2_max.dev_attr.attr, 1211 &sensor_dev_attr_in2_min.dev_attr.attr, 1212 &sensor_dev_attr_in3_input.dev_attr.attr, 1213 &sensor_dev_attr_in3_max.dev_attr.attr, 1214 &sensor_dev_attr_in3_min.dev_attr.attr, 1215 &sensor_dev_attr_in4_input.dev_attr.attr, 1216 &sensor_dev_attr_in4_max.dev_attr.attr, 1217 &sensor_dev_attr_in4_min.dev_attr.attr, 1218 &sensor_dev_attr_in5_input.dev_attr.attr, 1219 &sensor_dev_attr_in5_max.dev_attr.attr, 1220 &sensor_dev_attr_in5_min.dev_attr.attr, 1221 &sensor_dev_attr_in6_input.dev_attr.attr, 1222 &sensor_dev_attr_in6_max.dev_attr.attr, 1223 &sensor_dev_attr_in6_min.dev_attr.attr, 1224 &sensor_dev_attr_in7_input.dev_attr.attr, 1225 &sensor_dev_attr_in7_max.dev_attr.attr, 1226 &sensor_dev_attr_in7_min.dev_attr.attr, 1227 &sensor_dev_attr_in8_input.dev_attr.attr, 1228 &sensor_dev_attr_in8_max.dev_attr.attr, 1229 &sensor_dev_attr_in8_min.dev_attr.attr, 1230 &sensor_dev_attr_in0_alarm.dev_attr.attr, 1231 &sensor_dev_attr_in1_alarm.dev_attr.attr, 1232 &sensor_dev_attr_in2_alarm.dev_attr.attr, 1233 &sensor_dev_attr_in3_alarm.dev_attr.attr, 1234 &sensor_dev_attr_in4_alarm.dev_attr.attr, 1235 &sensor_dev_attr_in5_alarm.dev_attr.attr, 1236 &sensor_dev_attr_in6_alarm.dev_attr.attr, 1237 &sensor_dev_attr_in7_alarm.dev_attr.attr, 1238 &sensor_dev_attr_in8_alarm.dev_attr.attr, 1239 &sensor_dev_attr_temp1_input.dev_attr.attr, 1240 &sensor_dev_attr_temp1_max.dev_attr.attr, 1241 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, 1242 &sensor_dev_attr_temp2_input.dev_attr.attr, 1243 &sensor_dev_attr_temp2_max.dev_attr.attr, 1244 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, 1245 &sensor_dev_attr_temp3_input.dev_attr.attr, 1246 &sensor_dev_attr_temp3_max.dev_attr.attr, 1247 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, 1248 &sensor_dev_attr_temp1_alarm.dev_attr.attr, 1249 &sensor_dev_attr_temp2_alarm.dev_attr.attr, 1250 &sensor_dev_attr_temp3_alarm.dev_attr.attr, 1251 &sensor_dev_attr_pwm1.dev_attr.attr, 1252 &sensor_dev_attr_pwm1_mode.dev_attr.attr, 1253 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 1254 &sensor_dev_attr_pwm2.dev_attr.attr, 1255 &sensor_dev_attr_pwm2_mode.dev_attr.attr, 1256 &sensor_dev_attr_pwm2_enable.dev_attr.attr, 1257 &sensor_dev_attr_pwm3.dev_attr.attr, 1258 &sensor_dev_attr_pwm3_mode.dev_attr.attr, 1259 &sensor_dev_attr_pwm3_enable.dev_attr.attr, 1260 &dev_attr_alarms.attr, 1261 &dev_attr_intrusion0_alarm.attr, 1262 &sensor_dev_attr_tolerance1.dev_attr.attr, 1263 &sensor_dev_attr_thermal_cruise1.dev_attr.attr, 1264 &sensor_dev_attr_tolerance2.dev_attr.attr, 1265 &sensor_dev_attr_thermal_cruise2.dev_attr.attr, 1266 &sensor_dev_attr_tolerance3.dev_attr.attr, 1267 &sensor_dev_attr_thermal_cruise3.dev_attr.attr, 1268 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr, 1269 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr, 1270 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr, 1271 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr, 1272 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr, 1273 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr, 1274 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr, 1275 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr, 1276 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr, 1277 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr, 1278 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr, 1279 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr, 1280 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr, 1281 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr, 1282 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr, 1283 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr, 1284 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr, 1285 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr, 1286 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr, 1287 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr, 1288 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr, 1289 &sensor_dev_attr_fan1_input.dev_attr.attr, 1290 &sensor_dev_attr_fan1_min.dev_attr.attr, 1291 &sensor_dev_attr_fan1_div.dev_attr.attr, 1292 &sensor_dev_attr_fan1_alarm.dev_attr.attr, 1293 &sensor_dev_attr_fan2_input.dev_attr.attr, 1294 &sensor_dev_attr_fan2_min.dev_attr.attr, 1295 &sensor_dev_attr_fan2_div.dev_attr.attr, 1296 &sensor_dev_attr_fan2_alarm.dev_attr.attr, 1297 &sensor_dev_attr_fan3_input.dev_attr.attr, 1298 &sensor_dev_attr_fan3_min.dev_attr.attr, 1299 &sensor_dev_attr_fan3_div.dev_attr.attr, 1300 &sensor_dev_attr_fan3_alarm.dev_attr.attr, 1301 NULL 1302}; 1303 1304static const struct attribute_group w83792d_group = { 1305 .attrs = w83792d_attributes, 1306}; 1307 1308/* Return 0 if detection is successful, -ENODEV otherwise */ 1309static int 1310w83792d_detect(struct i2c_client *client, struct i2c_board_info *info) 1311{ 1312 struct i2c_adapter *adapter = client->adapter; 1313 int val1, val2; 1314 unsigned short address = client->addr; 1315 1316 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 1317 return -ENODEV; 1318 1319 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) 1320 return -ENODEV; 1321 1322 val1 = w83792d_read_value(client, W83792D_REG_BANK); 1323 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1324 /* Check for Winbond ID if in bank 0 */ 1325 if (!(val1 & 0x07)) { /* is Bank0 */ 1326 if ((!(val1 & 0x80) && val2 != 0xa3) || 1327 ((val1 & 0x80) && val2 != 0x5c)) 1328 return -ENODEV; 1329 } 1330 /* 1331 * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR 1332 * should match 1333 */ 1334 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address) 1335 return -ENODEV; 1336 1337 /* Put it now into bank 0 and Vendor ID High Byte */ 1338 w83792d_write_value(client, 1339 W83792D_REG_BANK, 1340 (w83792d_read_value(client, 1341 W83792D_REG_BANK) & 0x78) | 0x80); 1342 1343 /* Determine the chip type. */ 1344 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID); 1345 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1346 if (val1 != 0x7a || val2 != 0x5c) 1347 return -ENODEV; 1348 1349 strscpy(info->type, "w83792d", I2C_NAME_SIZE); 1350 1351 return 0; 1352} 1353 1354static int 1355w83792d_probe(struct i2c_client *client) 1356{ 1357 struct w83792d_data *data; 1358 struct device *dev = &client->dev; 1359 int i, val1, err; 1360 1361 data = devm_kzalloc(dev, sizeof(struct w83792d_data), GFP_KERNEL); 1362 if (!data) 1363 return -ENOMEM; 1364 1365 i2c_set_clientdata(client, data); 1366 mutex_init(&data->update_lock); 1367 1368 err = w83792d_detect_subclients(client); 1369 if (err) 1370 return err; 1371 1372 /* Initialize the chip */ 1373 w83792d_init_client(client); 1374 1375 /* A few vars need to be filled upon startup */ 1376 for (i = 0; i < 7; i++) { 1377 data->fan_min[i] = w83792d_read_value(client, 1378 W83792D_REG_FAN_MIN[i]); 1379 } 1380 1381 /* Register sysfs hooks */ 1382 err = sysfs_create_group(&dev->kobj, &w83792d_group); 1383 if (err) 1384 return err; 1385 1386 /* 1387 * Read GPIO enable register to check if pins for fan 4,5 are used as 1388 * GPIO 1389 */ 1390 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN); 1391 1392 if (!(val1 & 0x40)) { 1393 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]); 1394 if (err) 1395 goto exit_remove_files; 1396 } 1397 1398 if (!(val1 & 0x20)) { 1399 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]); 1400 if (err) 1401 goto exit_remove_files; 1402 } 1403 1404 val1 = w83792d_read_value(client, W83792D_REG_PIN); 1405 if (val1 & 0x40) { 1406 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]); 1407 if (err) 1408 goto exit_remove_files; 1409 } 1410 1411 if (val1 & 0x04) { 1412 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]); 1413 if (err) 1414 goto exit_remove_files; 1415 } 1416 1417 data->hwmon_dev = hwmon_device_register(dev); 1418 if (IS_ERR(data->hwmon_dev)) { 1419 err = PTR_ERR(data->hwmon_dev); 1420 goto exit_remove_files; 1421 } 1422 1423 return 0; 1424 1425exit_remove_files: 1426 sysfs_remove_group(&dev->kobj, &w83792d_group); 1427 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1428 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]); 1429 return err; 1430} 1431 1432static void 1433w83792d_remove(struct i2c_client *client) 1434{ 1435 struct w83792d_data *data = i2c_get_clientdata(client); 1436 int i; 1437 1438 hwmon_device_unregister(data->hwmon_dev); 1439 sysfs_remove_group(&client->dev.kobj, &w83792d_group); 1440 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1441 sysfs_remove_group(&client->dev.kobj, 1442 &w83792d_group_fan[i]); 1443} 1444 1445static void 1446w83792d_init_client(struct i2c_client *client) 1447{ 1448 u8 temp2_cfg, temp3_cfg, vid_in_b; 1449 1450 if (init) 1451 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80); 1452 1453 /* 1454 * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0): 1455 * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of 1456 * vin0/vin1 can be modified by user; 1457 * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of 1458 * vin0/vin1 auto-updated, can NOT be modified by user. 1459 */ 1460 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B); 1461 w83792d_write_value(client, W83792D_REG_VID_IN_B, 1462 vid_in_b & 0xbf); 1463 1464 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG); 1465 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG); 1466 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG, 1467 temp2_cfg & 0xe6); 1468 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG, 1469 temp3_cfg & 0xe6); 1470 1471 /* Start monitoring */ 1472 w83792d_write_value(client, W83792D_REG_CONFIG, 1473 (w83792d_read_value(client, 1474 W83792D_REG_CONFIG) & 0xf7) 1475 | 0x01); 1476} 1477 1478static struct w83792d_data *w83792d_update_device(struct device *dev) 1479{ 1480 struct i2c_client *client = to_i2c_client(dev); 1481 struct w83792d_data *data = i2c_get_clientdata(client); 1482 int i, j; 1483 u8 reg_array_tmp[4], reg_tmp; 1484 1485 mutex_lock(&data->update_lock); 1486 1487 if (time_after 1488 (jiffies - data->last_updated, (unsigned long) (HZ * 3)) 1489 || time_before(jiffies, data->last_updated) || !data->valid) { 1490 dev_dbg(dev, "Starting device update\n"); 1491 1492 /* Update the voltages measured value and limits */ 1493 for (i = 0; i < 9; i++) { 1494 data->in[i] = w83792d_read_value(client, 1495 W83792D_REG_IN[i]); 1496 data->in_max[i] = w83792d_read_value(client, 1497 W83792D_REG_IN_MAX[i]); 1498 data->in_min[i] = w83792d_read_value(client, 1499 W83792D_REG_IN_MIN[i]); 1500 } 1501 data->low_bits = w83792d_read_value(client, 1502 W83792D_REG_LOW_BITS1) + 1503 (w83792d_read_value(client, 1504 W83792D_REG_LOW_BITS2) << 8); 1505 for (i = 0; i < 7; i++) { 1506 /* Update the Fan measured value and limits */ 1507 data->fan[i] = w83792d_read_value(client, 1508 W83792D_REG_FAN[i]); 1509 data->fan_min[i] = w83792d_read_value(client, 1510 W83792D_REG_FAN_MIN[i]); 1511 /* Update the PWM/DC Value and PWM/DC flag */ 1512 data->pwm[i] = w83792d_read_value(client, 1513 W83792D_REG_PWM[i]); 1514 } 1515 1516 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG); 1517 data->pwmenable[0] = reg_tmp & 0x03; 1518 data->pwmenable[1] = (reg_tmp>>2) & 0x03; 1519 data->pwmenable[2] = (reg_tmp>>4) & 0x03; 1520 1521 for (i = 0; i < 3; i++) { 1522 data->temp1[i] = w83792d_read_value(client, 1523 W83792D_REG_TEMP1[i]); 1524 } 1525 for (i = 0; i < 2; i++) { 1526 for (j = 0; j < 6; j++) { 1527 data->temp_add[i][j] = w83792d_read_value( 1528 client, W83792D_REG_TEMP_ADD[i][j]); 1529 } 1530 } 1531 1532 /* Update the Fan Divisor */ 1533 for (i = 0; i < 4; i++) { 1534 reg_array_tmp[i] = w83792d_read_value(client, 1535 W83792D_REG_FAN_DIV[i]); 1536 } 1537 data->fan_div[0] = reg_array_tmp[0] & 0x07; 1538 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07; 1539 data->fan_div[2] = reg_array_tmp[1] & 0x07; 1540 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07; 1541 data->fan_div[4] = reg_array_tmp[2] & 0x07; 1542 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07; 1543 data->fan_div[6] = reg_array_tmp[3] & 0x07; 1544 1545 /* Update the realtime status */ 1546 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) + 1547 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) + 1548 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16); 1549 1550 /* Update CaseOpen status and it's CLR_CHS. */ 1551 data->chassis = (w83792d_read_value(client, 1552 W83792D_REG_CHASSIS) >> 5) & 0x01; 1553 1554 /* Update Thermal Cruise/Smart Fan I target value */ 1555 for (i = 0; i < 3; i++) { 1556 data->thermal_cruise[i] = 1557 w83792d_read_value(client, 1558 W83792D_REG_THERMAL[i]) & 0x7f; 1559 } 1560 1561 /* Update Smart Fan I/II tolerance */ 1562 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]); 1563 data->tolerance[0] = reg_tmp & 0x0f; 1564 data->tolerance[1] = (reg_tmp >> 4) & 0x0f; 1565 data->tolerance[2] = w83792d_read_value(client, 1566 W83792D_REG_TOLERANCE[2]) & 0x0f; 1567 1568 /* Update Smart Fan II temperature points */ 1569 for (i = 0; i < 3; i++) { 1570 for (j = 0; j < 4; j++) { 1571 data->sf2_points[i][j] 1572 = w83792d_read_value(client, 1573 W83792D_REG_POINTS[i][j]) & 0x7f; 1574 } 1575 } 1576 1577 /* Update Smart Fan II duty cycle levels */ 1578 for (i = 0; i < 3; i++) { 1579 reg_tmp = w83792d_read_value(client, 1580 W83792D_REG_LEVELS[i][0]); 1581 data->sf2_levels[i][0] = reg_tmp & 0x0f; 1582 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f; 1583 reg_tmp = w83792d_read_value(client, 1584 W83792D_REG_LEVELS[i][2]); 1585 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f; 1586 data->sf2_levels[i][3] = reg_tmp & 0x0f; 1587 } 1588 1589 data->last_updated = jiffies; 1590 data->valid = true; 1591 } 1592 1593 mutex_unlock(&data->update_lock); 1594 1595#ifdef DEBUG 1596 w83792d_print_debug(data, dev); 1597#endif 1598 1599 return data; 1600} 1601 1602#ifdef DEBUG 1603static void w83792d_print_debug(struct w83792d_data *data, struct device *dev) 1604{ 1605 int i = 0, j = 0; 1606 dev_dbg(dev, "==========The following is the debug message...========\n"); 1607 dev_dbg(dev, "9 set of Voltages: =====>\n"); 1608 for (i = 0; i < 9; i++) { 1609 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]); 1610 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]); 1611 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]); 1612 } 1613 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff); 1614 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8); 1615 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n"); 1616 for (i = 0; i < 7; i++) { 1617 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]); 1618 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]); 1619 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]); 1620 } 1621 dev_dbg(dev, "3 set of Temperatures: =====>\n"); 1622 for (i = 0; i < 3; i++) 1623 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]); 1624 1625 for (i = 0; i < 2; i++) { 1626 for (j = 0; j < 6; j++) { 1627 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j, 1628 data->temp_add[i][j]); 1629 } 1630 } 1631 1632 for (i = 0; i < 7; i++) 1633 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]); 1634 1635 dev_dbg(dev, "==========End of the debug message...================\n"); 1636 dev_dbg(dev, "\n"); 1637} 1638#endif 1639 1640module_i2c_driver(w83792d_driver); 1641 1642MODULE_AUTHOR("Shane Huang (Winbond)"); 1643MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6"); 1644MODULE_LICENSE("GPL"); 1645