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 */ 37 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, 38 I2C_CLIENT_END }; 39 40 /* Insmod parameters */ 41 42 static unsigned short force_subclients[4]; 43 module_param_array(force_subclients, short, NULL, 0); 44 MODULE_PARM_DESC(force_subclients, 45 "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}"); 46 47 static bool init; 48 module_param(init, bool, 0); 49 MODULE_PARM_DESC(init, "Set to one to force chip initialization"); 50 51 /* The W83792D registers */ 52 static 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 */ 65 static 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 }; 76 static 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 }; 87 static 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 }; 96 static 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 */ 106 static 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 }; 112 static 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 124 125 static 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 }; 130 131 static 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 }; 145 146 static 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 }; 151 152 static 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 }; 157 158 static 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 }; 172 173 static 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))) 219 220 static inline u8 221 FAN_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)) 246 247 static inline u8 248 DIV_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 } 259 260 struct w83792d_data { 261 struct device *hwmon_dev; 262 263 struct mutex update_lock; 264 char valid; /* !=0 if following fields are valid */ 265 unsigned long last_updated; /* In jiffies */ 266 267 /* array of 2 pointers to subclients */ 268 struct i2c_client *lm75[2]; 269 270 u8 in[9]; /* Register value */ 271 u8 in_max[9]; /* Register value */ 272 u8 in_min[9]; /* Register value */ 273 u16 low_bits; /* Additional resolution to voltage in6-0 */ 274 u8 fan[7]; /* Register value */ 275 u8 fan_min[7]; /* Register value */ 276 u8 temp1[3]; /* current, over, thyst */ 277 u8 temp_add[2][6]; /* Register value */ 278 u8 fan_div[7]; /* Register encoding, shifted right */ 279 u8 pwm[7]; /* The 7 PWM outputs */ 280 u8 pwmenable[3]; 281 u32 alarms; /* realtime status register encoding,combined */ 282 u8 chassis; /* Chassis status */ 283 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */ 284 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */ 285 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */ 286 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */ 287 }; 288 289 static int w83792d_probe(struct i2c_client *client); 290 static int w83792d_detect(struct i2c_client *client, 291 struct i2c_board_info *info); 292 static int w83792d_remove(struct i2c_client *client); 293 static struct w83792d_data *w83792d_update_device(struct device *dev); 294 295 #ifdef DEBUG 296 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev); 297 #endif 298 299 static void w83792d_init_client(struct i2c_client *client); 300 301 static const struct i2c_device_id w83792d_id[] = { 302 { "w83792d", 0 }, 303 { } 304 }; 305 MODULE_DEVICE_TABLE(i2c, w83792d_id); 306 307 static struct i2c_driver w83792d_driver = { 308 .class = I2C_CLASS_HWMON, 309 .driver = { 310 .name = "w83792d", 311 }, 312 .probe_new = w83792d_probe, 313 .remove = w83792d_remove, 314 .id_table = w83792d_id, 315 .detect = w83792d_detect, 316 .address_list = normal_i2c, 317 }; 318 319 static inline long in_count_from_reg(int nr, struct w83792d_data *data) 320 { 321 /* in7 and in8 do not have low bits, but the formula still works */ 322 return (data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03); 323 } 324 325 /* 326 * The SMBus locks itself. The Winbond W83792D chip has a bank register, 327 * but the driver only accesses registers in bank 0, so we don't have 328 * to switch banks and lock access between switches. 329 */ 330 static inline int w83792d_read_value(struct i2c_client *client, u8 reg) 331 { 332 return i2c_smbus_read_byte_data(client, reg); 333 } 334 335 static inline int 336 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value) 337 { 338 return i2c_smbus_write_byte_data(client, reg, value); 339 } 340 341 /* following are the sysfs callback functions */ 342 static ssize_t show_in(struct device *dev, struct device_attribute *attr, 343 char *buf) 344 { 345 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 346 int nr = sensor_attr->index; 347 struct w83792d_data *data = w83792d_update_device(dev); 348 return sprintf(buf, "%ld\n", 349 IN_FROM_REG(nr, in_count_from_reg(nr, data))); 350 } 351 352 #define show_in_reg(reg) \ 353 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ 354 char *buf) \ 355 { \ 356 struct sensor_device_attribute *sensor_attr \ 357 = to_sensor_dev_attr(attr); \ 358 int nr = sensor_attr->index; \ 359 struct w83792d_data *data = w83792d_update_device(dev); \ 360 return sprintf(buf, "%ld\n", \ 361 (long)(IN_FROM_REG(nr, data->reg[nr]) * 4)); \ 362 } 363 364 show_in_reg(in_min); 365 show_in_reg(in_max); 366 367 #define store_in_reg(REG, reg) \ 368 static ssize_t store_in_##reg(struct device *dev, \ 369 struct device_attribute *attr, \ 370 const char *buf, size_t count) \ 371 { \ 372 struct sensor_device_attribute *sensor_attr \ 373 = to_sensor_dev_attr(attr); \ 374 int nr = sensor_attr->index; \ 375 struct i2c_client *client = to_i2c_client(dev); \ 376 struct w83792d_data *data = i2c_get_clientdata(client); \ 377 unsigned long val; \ 378 int err = kstrtoul(buf, 10, &val); \ 379 if (err) \ 380 return err; \ 381 mutex_lock(&data->update_lock); \ 382 data->in_##reg[nr] = clamp_val(IN_TO_REG(nr, val) / 4, 0, 255); \ 383 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], \ 384 data->in_##reg[nr]); \ 385 mutex_unlock(&data->update_lock); \ 386 \ 387 return count; \ 388 } 389 store_in_reg(MIN, min); 390 store_in_reg(MAX, max); 391 392 #define show_fan_reg(reg) \ 393 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ 394 char *buf) \ 395 { \ 396 struct sensor_device_attribute *sensor_attr \ 397 = to_sensor_dev_attr(attr); \ 398 int nr = sensor_attr->index - 1; \ 399 struct w83792d_data *data = w83792d_update_device(dev); \ 400 return sprintf(buf, "%d\n", \ 401 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \ 402 } 403 404 show_fan_reg(fan); 405 show_fan_reg(fan_min); 406 407 static ssize_t 408 store_fan_min(struct device *dev, struct device_attribute *attr, 409 const char *buf, size_t count) 410 { 411 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 412 int nr = sensor_attr->index - 1; 413 struct i2c_client *client = to_i2c_client(dev); 414 struct w83792d_data *data = i2c_get_clientdata(client); 415 unsigned long val; 416 int err; 417 418 err = kstrtoul(buf, 10, &val); 419 if (err) 420 return err; 421 422 mutex_lock(&data->update_lock); 423 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); 424 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], 425 data->fan_min[nr]); 426 mutex_unlock(&data->update_lock); 427 428 return count; 429 } 430 431 static ssize_t 432 show_fan_div(struct device *dev, struct device_attribute *attr, 433 char *buf) 434 { 435 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 436 int nr = sensor_attr->index; 437 struct w83792d_data *data = w83792d_update_device(dev); 438 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1])); 439 } 440 441 /* 442 * Note: we save and restore the fan minimum here, because its value is 443 * determined in part by the fan divisor. This follows the principle of 444 * least surprise; the user doesn't expect the fan minimum to change just 445 * because the divisor changed. 446 */ 447 static ssize_t 448 store_fan_div(struct device *dev, struct device_attribute *attr, 449 const char *buf, size_t count) 450 { 451 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 452 int nr = sensor_attr->index - 1; 453 struct i2c_client *client = to_i2c_client(dev); 454 struct w83792d_data *data = i2c_get_clientdata(client); 455 unsigned long min; 456 /*u8 reg;*/ 457 u8 fan_div_reg = 0; 458 u8 tmp_fan_div; 459 unsigned long val; 460 int err; 461 462 err = kstrtoul(buf, 10, &val); 463 if (err) 464 return err; 465 466 /* Save fan_min */ 467 mutex_lock(&data->update_lock); 468 min = FAN_FROM_REG(data->fan_min[nr], 469 DIV_FROM_REG(data->fan_div[nr])); 470 471 data->fan_div[nr] = DIV_TO_REG(val); 472 473 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]); 474 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8; 475 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70) 476 : ((data->fan_div[nr]) & 0x07); 477 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1], 478 fan_div_reg | tmp_fan_div); 479 480 /* Restore fan_min */ 481 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); 482 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]); 483 mutex_unlock(&data->update_lock); 484 485 return count; 486 } 487 488 /* read/write the temperature1, includes measured value and limits */ 489 490 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr, 491 char *buf) 492 { 493 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 494 int nr = sensor_attr->index; 495 struct w83792d_data *data = w83792d_update_device(dev); 496 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr])); 497 } 498 499 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr, 500 const char *buf, size_t count) 501 { 502 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 503 int nr = sensor_attr->index; 504 struct i2c_client *client = to_i2c_client(dev); 505 struct w83792d_data *data = i2c_get_clientdata(client); 506 long val; 507 int err; 508 509 err = kstrtol(buf, 10, &val); 510 if (err) 511 return err; 512 513 mutex_lock(&data->update_lock); 514 data->temp1[nr] = TEMP1_TO_REG(val); 515 w83792d_write_value(client, W83792D_REG_TEMP1[nr], 516 data->temp1[nr]); 517 mutex_unlock(&data->update_lock); 518 519 return count; 520 } 521 522 /* read/write the temperature2-3, includes measured value and limits */ 523 524 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr, 525 char *buf) 526 { 527 struct sensor_device_attribute_2 *sensor_attr 528 = to_sensor_dev_attr_2(attr); 529 int nr = sensor_attr->nr; 530 int index = sensor_attr->index; 531 struct w83792d_data *data = w83792d_update_device(dev); 532 return sprintf(buf, "%ld\n", 533 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index], 534 data->temp_add[nr][index+1])); 535 } 536 537 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr, 538 const char *buf, size_t count) 539 { 540 struct sensor_device_attribute_2 *sensor_attr 541 = to_sensor_dev_attr_2(attr); 542 int nr = sensor_attr->nr; 543 int index = sensor_attr->index; 544 struct i2c_client *client = to_i2c_client(dev); 545 struct w83792d_data *data = i2c_get_clientdata(client); 546 long val; 547 int err; 548 549 err = kstrtol(buf, 10, &val); 550 if (err) 551 return err; 552 553 mutex_lock(&data->update_lock); 554 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val); 555 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val); 556 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index], 557 data->temp_add[nr][index]); 558 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1], 559 data->temp_add[nr][index+1]); 560 mutex_unlock(&data->update_lock); 561 562 return count; 563 } 564 565 /* get realtime status of all sensors items: voltage, temp, fan */ 566 static ssize_t 567 alarms_show(struct device *dev, struct device_attribute *attr, char *buf) 568 { 569 struct w83792d_data *data = w83792d_update_device(dev); 570 return sprintf(buf, "%d\n", data->alarms); 571 } 572 573 static ssize_t show_alarm(struct device *dev, 574 struct device_attribute *attr, char *buf) 575 { 576 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 577 int nr = sensor_attr->index; 578 struct w83792d_data *data = w83792d_update_device(dev); 579 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1); 580 } 581 582 static ssize_t 583 show_pwm(struct device *dev, struct device_attribute *attr, 584 char *buf) 585 { 586 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 587 int nr = sensor_attr->index; 588 struct w83792d_data *data = w83792d_update_device(dev); 589 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4); 590 } 591 592 static ssize_t 593 show_pwmenable(struct device *dev, struct device_attribute *attr, 594 char *buf) 595 { 596 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 597 int nr = sensor_attr->index - 1; 598 struct w83792d_data *data = w83792d_update_device(dev); 599 long pwm_enable_tmp = 1; 600 601 switch (data->pwmenable[nr]) { 602 case 0: 603 pwm_enable_tmp = 1; /* manual mode */ 604 break; 605 case 1: 606 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */ 607 break; 608 case 2: 609 pwm_enable_tmp = 2; /* Smart Fan II */ 610 break; 611 } 612 613 return sprintf(buf, "%ld\n", pwm_enable_tmp); 614 } 615 616 static ssize_t 617 store_pwm(struct device *dev, struct device_attribute *attr, 618 const char *buf, size_t count) 619 { 620 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 621 int nr = sensor_attr->index; 622 struct i2c_client *client = to_i2c_client(dev); 623 struct w83792d_data *data = i2c_get_clientdata(client); 624 unsigned long val; 625 int err; 626 627 err = kstrtoul(buf, 10, &val); 628 if (err) 629 return err; 630 val = clamp_val(val, 0, 255) >> 4; 631 632 mutex_lock(&data->update_lock); 633 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0; 634 data->pwm[nr] = val; 635 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 636 mutex_unlock(&data->update_lock); 637 638 return count; 639 } 640 641 static ssize_t 642 store_pwmenable(struct device *dev, struct device_attribute *attr, 643 const char *buf, size_t count) 644 { 645 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 646 int nr = sensor_attr->index - 1; 647 struct i2c_client *client = to_i2c_client(dev); 648 struct w83792d_data *data = i2c_get_clientdata(client); 649 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp; 650 unsigned long val; 651 int err; 652 653 err = kstrtoul(buf, 10, &val); 654 if (err) 655 return err; 656 657 if (val < 1 || val > 3) 658 return -EINVAL; 659 660 mutex_lock(&data->update_lock); 661 switch (val) { 662 case 1: 663 data->pwmenable[nr] = 0; /* manual mode */ 664 break; 665 case 2: 666 data->pwmenable[nr] = 2; /* Smart Fan II */ 667 break; 668 case 3: 669 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */ 670 break; 671 } 672 cfg1_tmp = data->pwmenable[0]; 673 cfg2_tmp = (data->pwmenable[1]) << 2; 674 cfg3_tmp = (data->pwmenable[2]) << 4; 675 cfg4_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG) & 0xc0; 676 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp; 677 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp); 678 mutex_unlock(&data->update_lock); 679 680 return count; 681 } 682 683 static ssize_t 684 show_pwm_mode(struct device *dev, struct device_attribute *attr, 685 char *buf) 686 { 687 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 688 int nr = sensor_attr->index; 689 struct w83792d_data *data = w83792d_update_device(dev); 690 return sprintf(buf, "%d\n", data->pwm[nr] >> 7); 691 } 692 693 static ssize_t 694 store_pwm_mode(struct device *dev, struct device_attribute *attr, 695 const char *buf, size_t count) 696 { 697 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 698 int nr = sensor_attr->index; 699 struct i2c_client *client = to_i2c_client(dev); 700 struct w83792d_data *data = i2c_get_clientdata(client); 701 unsigned long val; 702 int err; 703 704 err = kstrtoul(buf, 10, &val); 705 if (err) 706 return err; 707 if (val > 1) 708 return -EINVAL; 709 710 mutex_lock(&data->update_lock); 711 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]); 712 if (val) { /* PWM mode */ 713 data->pwm[nr] |= 0x80; 714 } else { /* DC mode */ 715 data->pwm[nr] &= 0x7f; 716 } 717 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 718 mutex_unlock(&data->update_lock); 719 720 return count; 721 } 722 723 static ssize_t 724 intrusion0_alarm_show(struct device *dev, struct device_attribute *attr, 725 char *buf) 726 { 727 struct w83792d_data *data = w83792d_update_device(dev); 728 return sprintf(buf, "%d\n", data->chassis); 729 } 730 731 static ssize_t 732 intrusion0_alarm_store(struct device *dev, struct device_attribute *attr, 733 const char *buf, size_t count) 734 { 735 struct i2c_client *client = to_i2c_client(dev); 736 struct w83792d_data *data = i2c_get_clientdata(client); 737 unsigned long val; 738 u8 reg; 739 740 if (kstrtoul(buf, 10, &val) || val != 0) 741 return -EINVAL; 742 743 mutex_lock(&data->update_lock); 744 reg = w83792d_read_value(client, W83792D_REG_CHASSIS_CLR); 745 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, reg | 0x80); 746 data->valid = 0; /* Force cache refresh */ 747 mutex_unlock(&data->update_lock); 748 749 return count; 750 } 751 752 /* For Smart Fan I / Thermal Cruise */ 753 static ssize_t 754 show_thermal_cruise(struct device *dev, struct device_attribute *attr, 755 char *buf) 756 { 757 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 758 int nr = sensor_attr->index; 759 struct w83792d_data *data = w83792d_update_device(dev); 760 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]); 761 } 762 763 static ssize_t 764 store_thermal_cruise(struct device *dev, struct device_attribute *attr, 765 const char *buf, size_t count) 766 { 767 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 768 int nr = sensor_attr->index - 1; 769 struct i2c_client *client = to_i2c_client(dev); 770 struct w83792d_data *data = i2c_get_clientdata(client); 771 u8 target_tmp = 0, target_mask = 0; 772 unsigned long val; 773 int err; 774 775 err = kstrtoul(buf, 10, &val); 776 if (err) 777 return err; 778 779 target_tmp = val; 780 target_tmp = target_tmp & 0x7f; 781 mutex_lock(&data->update_lock); 782 target_mask = w83792d_read_value(client, 783 W83792D_REG_THERMAL[nr]) & 0x80; 784 data->thermal_cruise[nr] = clamp_val(target_tmp, 0, 255); 785 w83792d_write_value(client, W83792D_REG_THERMAL[nr], 786 (data->thermal_cruise[nr]) | target_mask); 787 mutex_unlock(&data->update_lock); 788 789 return count; 790 } 791 792 /* For Smart Fan I/Thermal Cruise and Smart Fan II */ 793 static ssize_t 794 show_tolerance(struct device *dev, struct device_attribute *attr, 795 char *buf) 796 { 797 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 798 int nr = sensor_attr->index; 799 struct w83792d_data *data = w83792d_update_device(dev); 800 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]); 801 } 802 803 static ssize_t 804 store_tolerance(struct device *dev, struct device_attribute *attr, 805 const char *buf, size_t count) 806 { 807 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 808 int nr = sensor_attr->index - 1; 809 struct i2c_client *client = to_i2c_client(dev); 810 struct w83792d_data *data = i2c_get_clientdata(client); 811 u8 tol_tmp, tol_mask; 812 unsigned long val; 813 int err; 814 815 err = kstrtoul(buf, 10, &val); 816 if (err) 817 return err; 818 819 mutex_lock(&data->update_lock); 820 tol_mask = w83792d_read_value(client, 821 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0); 822 tol_tmp = clamp_val(val, 0, 15); 823 tol_tmp &= 0x0f; 824 data->tolerance[nr] = tol_tmp; 825 if (nr == 1) 826 tol_tmp <<= 4; 827 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr], 828 tol_mask | tol_tmp); 829 mutex_unlock(&data->update_lock); 830 831 return count; 832 } 833 834 /* For Smart Fan II */ 835 static ssize_t 836 show_sf2_point(struct device *dev, struct device_attribute *attr, 837 char *buf) 838 { 839 struct sensor_device_attribute_2 *sensor_attr 840 = to_sensor_dev_attr_2(attr); 841 int nr = sensor_attr->nr; 842 int index = sensor_attr->index; 843 struct w83792d_data *data = w83792d_update_device(dev); 844 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]); 845 } 846 847 static ssize_t 848 store_sf2_point(struct device *dev, struct device_attribute *attr, 849 const char *buf, size_t count) 850 { 851 struct sensor_device_attribute_2 *sensor_attr 852 = to_sensor_dev_attr_2(attr); 853 int nr = sensor_attr->nr - 1; 854 int index = sensor_attr->index - 1; 855 struct i2c_client *client = to_i2c_client(dev); 856 struct w83792d_data *data = i2c_get_clientdata(client); 857 u8 mask_tmp = 0; 858 unsigned long val; 859 int err; 860 861 err = kstrtoul(buf, 10, &val); 862 if (err) 863 return err; 864 865 mutex_lock(&data->update_lock); 866 data->sf2_points[index][nr] = clamp_val(val, 0, 127); 867 mask_tmp = w83792d_read_value(client, 868 W83792D_REG_POINTS[index][nr]) & 0x80; 869 w83792d_write_value(client, W83792D_REG_POINTS[index][nr], 870 mask_tmp|data->sf2_points[index][nr]); 871 mutex_unlock(&data->update_lock); 872 873 return count; 874 } 875 876 static ssize_t 877 show_sf2_level(struct device *dev, struct device_attribute *attr, 878 char *buf) 879 { 880 struct sensor_device_attribute_2 *sensor_attr 881 = to_sensor_dev_attr_2(attr); 882 int nr = sensor_attr->nr; 883 int index = sensor_attr->index; 884 struct w83792d_data *data = w83792d_update_device(dev); 885 return sprintf(buf, "%d\n", 886 (((data->sf2_levels[index-1][nr]) * 100) / 15)); 887 } 888 889 static ssize_t 890 store_sf2_level(struct device *dev, struct device_attribute *attr, 891 const char *buf, size_t count) 892 { 893 struct sensor_device_attribute_2 *sensor_attr 894 = to_sensor_dev_attr_2(attr); 895 int nr = sensor_attr->nr; 896 int index = sensor_attr->index - 1; 897 struct i2c_client *client = to_i2c_client(dev); 898 struct w83792d_data *data = i2c_get_clientdata(client); 899 u8 mask_tmp = 0, level_tmp = 0; 900 unsigned long val; 901 int err; 902 903 err = kstrtoul(buf, 10, &val); 904 if (err) 905 return err; 906 907 mutex_lock(&data->update_lock); 908 data->sf2_levels[index][nr] = clamp_val((val * 15) / 100, 0, 15); 909 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr]) 910 & ((nr == 3) ? 0xf0 : 0x0f); 911 if (nr == 3) 912 level_tmp = data->sf2_levels[index][nr]; 913 else 914 level_tmp = data->sf2_levels[index][nr] << 4; 915 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], 916 level_tmp | mask_tmp); 917 mutex_unlock(&data->update_lock); 918 919 return count; 920 } 921 922 923 static int 924 w83792d_detect_subclients(struct i2c_client *new_client) 925 { 926 int i, id; 927 int address = new_client->addr; 928 u8 val; 929 struct i2c_adapter *adapter = new_client->adapter; 930 struct w83792d_data *data = i2c_get_clientdata(new_client); 931 932 id = i2c_adapter_id(adapter); 933 if (force_subclients[0] == id && force_subclients[1] == address) { 934 for (i = 2; i <= 3; i++) { 935 if (force_subclients[i] < 0x48 || 936 force_subclients[i] > 0x4f) { 937 dev_err(&new_client->dev, 938 "invalid subclient address %d; must be 0x48-0x4f\n", 939 force_subclients[i]); 940 return -ENODEV; 941 } 942 } 943 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR, 944 (force_subclients[2] & 0x07) | 945 ((force_subclients[3] & 0x07) << 4)); 946 } 947 948 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR); 949 if (!(val & 0x08)) 950 data->lm75[0] = devm_i2c_new_dummy_device(&new_client->dev, adapter, 951 0x48 + (val & 0x7)); 952 if (!(val & 0x80)) { 953 if (!IS_ERR(data->lm75[0]) && 954 ((val & 0x7) == ((val >> 4) & 0x7))) { 955 dev_err(&new_client->dev, 956 "duplicate addresses 0x%x, use force_subclient\n", 957 data->lm75[0]->addr); 958 return -ENODEV; 959 } 960 data->lm75[1] = devm_i2c_new_dummy_device(&new_client->dev, adapter, 961 0x48 + ((val >> 4) & 0x7)); 962 } 963 964 return 0; 965 } 966 967 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); 968 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); 969 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); 970 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); 971 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4); 972 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5); 973 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6); 974 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7); 975 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8); 976 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO, 977 show_in_min, store_in_min, 0); 978 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, 979 show_in_min, store_in_min, 1); 980 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, 981 show_in_min, store_in_min, 2); 982 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO, 983 show_in_min, store_in_min, 3); 984 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO, 985 show_in_min, store_in_min, 4); 986 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO, 987 show_in_min, store_in_min, 5); 988 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO, 989 show_in_min, store_in_min, 6); 990 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO, 991 show_in_min, store_in_min, 7); 992 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO, 993 show_in_min, store_in_min, 8); 994 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO, 995 show_in_max, store_in_max, 0); 996 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, 997 show_in_max, store_in_max, 1); 998 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, 999 show_in_max, store_in_max, 2); 1000 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO, 1001 show_in_max, store_in_max, 3); 1002 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO, 1003 show_in_max, store_in_max, 4); 1004 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO, 1005 show_in_max, store_in_max, 5); 1006 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO, 1007 show_in_max, store_in_max, 6); 1008 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO, 1009 show_in_max, store_in_max, 7); 1010 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO, 1011 show_in_max, store_in_max, 8); 1012 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0); 1013 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0); 1014 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0); 1015 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, 1016 show_temp1, store_temp1, 0, 1); 1017 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23, 1018 store_temp23, 0, 2); 1019 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23, 1020 store_temp23, 1, 2); 1021 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, 1022 show_temp1, store_temp1, 0, 2); 1023 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, 1024 show_temp23, store_temp23, 0, 4); 1025 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, 1026 show_temp23, store_temp23, 1, 4); 1027 static DEVICE_ATTR_RO(alarms); 1028 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); 1029 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); 1030 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2); 1031 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3); 1032 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4); 1033 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5); 1034 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6); 1035 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7); 1036 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8); 1037 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9); 1038 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10); 1039 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11); 1040 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12); 1041 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15); 1042 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19); 1043 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20); 1044 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21); 1045 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22); 1046 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23); 1047 static DEVICE_ATTR_RW(intrusion0_alarm); 1048 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0); 1049 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1); 1050 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2); 1051 static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3); 1052 static SENSOR_DEVICE_ATTR(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4); 1053 static SENSOR_DEVICE_ATTR(pwm6, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 5); 1054 static SENSOR_DEVICE_ATTR(pwm7, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 6); 1055 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, 1056 show_pwmenable, store_pwmenable, 1); 1057 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, 1058 show_pwmenable, store_pwmenable, 2); 1059 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, 1060 show_pwmenable, store_pwmenable, 3); 1061 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, 1062 show_pwm_mode, store_pwm_mode, 0); 1063 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, 1064 show_pwm_mode, store_pwm_mode, 1); 1065 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, 1066 show_pwm_mode, store_pwm_mode, 2); 1067 static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, 1068 show_pwm_mode, store_pwm_mode, 3); 1069 static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO, 1070 show_pwm_mode, store_pwm_mode, 4); 1071 static SENSOR_DEVICE_ATTR(pwm6_mode, S_IWUSR | S_IRUGO, 1072 show_pwm_mode, store_pwm_mode, 5); 1073 static SENSOR_DEVICE_ATTR(pwm7_mode, S_IWUSR | S_IRUGO, 1074 show_pwm_mode, store_pwm_mode, 6); 1075 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO, 1076 show_tolerance, store_tolerance, 1); 1077 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO, 1078 show_tolerance, store_tolerance, 2); 1079 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO, 1080 show_tolerance, store_tolerance, 3); 1081 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO, 1082 show_thermal_cruise, store_thermal_cruise, 1); 1083 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO, 1084 show_thermal_cruise, store_thermal_cruise, 2); 1085 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO, 1086 show_thermal_cruise, store_thermal_cruise, 3); 1087 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR, 1088 show_sf2_point, store_sf2_point, 1, 1); 1089 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR, 1090 show_sf2_point, store_sf2_point, 2, 1); 1091 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR, 1092 show_sf2_point, store_sf2_point, 3, 1); 1093 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR, 1094 show_sf2_point, store_sf2_point, 4, 1); 1095 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR, 1096 show_sf2_point, store_sf2_point, 1, 2); 1097 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR, 1098 show_sf2_point, store_sf2_point, 2, 2); 1099 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR, 1100 show_sf2_point, store_sf2_point, 3, 2); 1101 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR, 1102 show_sf2_point, store_sf2_point, 4, 2); 1103 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR, 1104 show_sf2_point, store_sf2_point, 1, 3); 1105 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR, 1106 show_sf2_point, store_sf2_point, 2, 3); 1107 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR, 1108 show_sf2_point, store_sf2_point, 3, 3); 1109 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR, 1110 show_sf2_point, store_sf2_point, 4, 3); 1111 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR, 1112 show_sf2_level, store_sf2_level, 1, 1); 1113 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR, 1114 show_sf2_level, store_sf2_level, 2, 1); 1115 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR, 1116 show_sf2_level, store_sf2_level, 3, 1); 1117 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR, 1118 show_sf2_level, store_sf2_level, 1, 2); 1119 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR, 1120 show_sf2_level, store_sf2_level, 2, 2); 1121 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR, 1122 show_sf2_level, store_sf2_level, 3, 2); 1123 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR, 1124 show_sf2_level, store_sf2_level, 1, 3); 1125 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR, 1126 show_sf2_level, store_sf2_level, 2, 3); 1127 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR, 1128 show_sf2_level, store_sf2_level, 3, 3); 1129 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1); 1130 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2); 1131 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3); 1132 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4); 1133 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5); 1134 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6); 1135 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7); 1136 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, 1137 show_fan_min, store_fan_min, 1); 1138 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, 1139 show_fan_min, store_fan_min, 2); 1140 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, 1141 show_fan_min, store_fan_min, 3); 1142 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, 1143 show_fan_min, store_fan_min, 4); 1144 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO, 1145 show_fan_min, store_fan_min, 5); 1146 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO, 1147 show_fan_min, store_fan_min, 6); 1148 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO, 1149 show_fan_min, store_fan_min, 7); 1150 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO, 1151 show_fan_div, store_fan_div, 1); 1152 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO, 1153 show_fan_div, store_fan_div, 2); 1154 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO, 1155 show_fan_div, store_fan_div, 3); 1156 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO, 1157 show_fan_div, store_fan_div, 4); 1158 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO, 1159 show_fan_div, store_fan_div, 5); 1160 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO, 1161 show_fan_div, store_fan_div, 6); 1162 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO, 1163 show_fan_div, store_fan_div, 7); 1164 1165 static struct attribute *w83792d_attributes_fan[4][7] = { 1166 { 1167 &sensor_dev_attr_fan4_input.dev_attr.attr, 1168 &sensor_dev_attr_fan4_min.dev_attr.attr, 1169 &sensor_dev_attr_fan4_div.dev_attr.attr, 1170 &sensor_dev_attr_fan4_alarm.dev_attr.attr, 1171 &sensor_dev_attr_pwm4.dev_attr.attr, 1172 &sensor_dev_attr_pwm4_mode.dev_attr.attr, 1173 NULL 1174 }, { 1175 &sensor_dev_attr_fan5_input.dev_attr.attr, 1176 &sensor_dev_attr_fan5_min.dev_attr.attr, 1177 &sensor_dev_attr_fan5_div.dev_attr.attr, 1178 &sensor_dev_attr_fan5_alarm.dev_attr.attr, 1179 &sensor_dev_attr_pwm5.dev_attr.attr, 1180 &sensor_dev_attr_pwm5_mode.dev_attr.attr, 1181 NULL 1182 }, { 1183 &sensor_dev_attr_fan6_input.dev_attr.attr, 1184 &sensor_dev_attr_fan6_min.dev_attr.attr, 1185 &sensor_dev_attr_fan6_div.dev_attr.attr, 1186 &sensor_dev_attr_fan6_alarm.dev_attr.attr, 1187 &sensor_dev_attr_pwm6.dev_attr.attr, 1188 &sensor_dev_attr_pwm6_mode.dev_attr.attr, 1189 NULL 1190 }, { 1191 &sensor_dev_attr_fan7_input.dev_attr.attr, 1192 &sensor_dev_attr_fan7_min.dev_attr.attr, 1193 &sensor_dev_attr_fan7_div.dev_attr.attr, 1194 &sensor_dev_attr_fan7_alarm.dev_attr.attr, 1195 &sensor_dev_attr_pwm7.dev_attr.attr, 1196 &sensor_dev_attr_pwm7_mode.dev_attr.attr, 1197 NULL 1198 } 1199 }; 1200 1201 static const struct attribute_group w83792d_group_fan[4] = { 1202 { .attrs = w83792d_attributes_fan[0] }, 1203 { .attrs = w83792d_attributes_fan[1] }, 1204 { .attrs = w83792d_attributes_fan[2] }, 1205 { .attrs = w83792d_attributes_fan[3] }, 1206 }; 1207 1208 static struct attribute *w83792d_attributes[] = { 1209 &sensor_dev_attr_in0_input.dev_attr.attr, 1210 &sensor_dev_attr_in0_max.dev_attr.attr, 1211 &sensor_dev_attr_in0_min.dev_attr.attr, 1212 &sensor_dev_attr_in1_input.dev_attr.attr, 1213 &sensor_dev_attr_in1_max.dev_attr.attr, 1214 &sensor_dev_attr_in1_min.dev_attr.attr, 1215 &sensor_dev_attr_in2_input.dev_attr.attr, 1216 &sensor_dev_attr_in2_max.dev_attr.attr, 1217 &sensor_dev_attr_in2_min.dev_attr.attr, 1218 &sensor_dev_attr_in3_input.dev_attr.attr, 1219 &sensor_dev_attr_in3_max.dev_attr.attr, 1220 &sensor_dev_attr_in3_min.dev_attr.attr, 1221 &sensor_dev_attr_in4_input.dev_attr.attr, 1222 &sensor_dev_attr_in4_max.dev_attr.attr, 1223 &sensor_dev_attr_in4_min.dev_attr.attr, 1224 &sensor_dev_attr_in5_input.dev_attr.attr, 1225 &sensor_dev_attr_in5_max.dev_attr.attr, 1226 &sensor_dev_attr_in5_min.dev_attr.attr, 1227 &sensor_dev_attr_in6_input.dev_attr.attr, 1228 &sensor_dev_attr_in6_max.dev_attr.attr, 1229 &sensor_dev_attr_in6_min.dev_attr.attr, 1230 &sensor_dev_attr_in7_input.dev_attr.attr, 1231 &sensor_dev_attr_in7_max.dev_attr.attr, 1232 &sensor_dev_attr_in7_min.dev_attr.attr, 1233 &sensor_dev_attr_in8_input.dev_attr.attr, 1234 &sensor_dev_attr_in8_max.dev_attr.attr, 1235 &sensor_dev_attr_in8_min.dev_attr.attr, 1236 &sensor_dev_attr_in0_alarm.dev_attr.attr, 1237 &sensor_dev_attr_in1_alarm.dev_attr.attr, 1238 &sensor_dev_attr_in2_alarm.dev_attr.attr, 1239 &sensor_dev_attr_in3_alarm.dev_attr.attr, 1240 &sensor_dev_attr_in4_alarm.dev_attr.attr, 1241 &sensor_dev_attr_in5_alarm.dev_attr.attr, 1242 &sensor_dev_attr_in6_alarm.dev_attr.attr, 1243 &sensor_dev_attr_in7_alarm.dev_attr.attr, 1244 &sensor_dev_attr_in8_alarm.dev_attr.attr, 1245 &sensor_dev_attr_temp1_input.dev_attr.attr, 1246 &sensor_dev_attr_temp1_max.dev_attr.attr, 1247 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, 1248 &sensor_dev_attr_temp2_input.dev_attr.attr, 1249 &sensor_dev_attr_temp2_max.dev_attr.attr, 1250 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, 1251 &sensor_dev_attr_temp3_input.dev_attr.attr, 1252 &sensor_dev_attr_temp3_max.dev_attr.attr, 1253 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, 1254 &sensor_dev_attr_temp1_alarm.dev_attr.attr, 1255 &sensor_dev_attr_temp2_alarm.dev_attr.attr, 1256 &sensor_dev_attr_temp3_alarm.dev_attr.attr, 1257 &sensor_dev_attr_pwm1.dev_attr.attr, 1258 &sensor_dev_attr_pwm1_mode.dev_attr.attr, 1259 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 1260 &sensor_dev_attr_pwm2.dev_attr.attr, 1261 &sensor_dev_attr_pwm2_mode.dev_attr.attr, 1262 &sensor_dev_attr_pwm2_enable.dev_attr.attr, 1263 &sensor_dev_attr_pwm3.dev_attr.attr, 1264 &sensor_dev_attr_pwm3_mode.dev_attr.attr, 1265 &sensor_dev_attr_pwm3_enable.dev_attr.attr, 1266 &dev_attr_alarms.attr, 1267 &dev_attr_intrusion0_alarm.attr, 1268 &sensor_dev_attr_tolerance1.dev_attr.attr, 1269 &sensor_dev_attr_thermal_cruise1.dev_attr.attr, 1270 &sensor_dev_attr_tolerance2.dev_attr.attr, 1271 &sensor_dev_attr_thermal_cruise2.dev_attr.attr, 1272 &sensor_dev_attr_tolerance3.dev_attr.attr, 1273 &sensor_dev_attr_thermal_cruise3.dev_attr.attr, 1274 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr, 1275 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr, 1276 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr, 1277 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr, 1278 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr, 1279 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr, 1280 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr, 1281 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr, 1282 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr, 1283 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr, 1284 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr, 1285 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr, 1286 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr, 1287 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr, 1288 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr, 1289 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr, 1290 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr, 1291 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr, 1292 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr, 1293 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr, 1294 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr, 1295 &sensor_dev_attr_fan1_input.dev_attr.attr, 1296 &sensor_dev_attr_fan1_min.dev_attr.attr, 1297 &sensor_dev_attr_fan1_div.dev_attr.attr, 1298 &sensor_dev_attr_fan1_alarm.dev_attr.attr, 1299 &sensor_dev_attr_fan2_input.dev_attr.attr, 1300 &sensor_dev_attr_fan2_min.dev_attr.attr, 1301 &sensor_dev_attr_fan2_div.dev_attr.attr, 1302 &sensor_dev_attr_fan2_alarm.dev_attr.attr, 1303 &sensor_dev_attr_fan3_input.dev_attr.attr, 1304 &sensor_dev_attr_fan3_min.dev_attr.attr, 1305 &sensor_dev_attr_fan3_div.dev_attr.attr, 1306 &sensor_dev_attr_fan3_alarm.dev_attr.attr, 1307 NULL 1308 }; 1309 1310 static const struct attribute_group w83792d_group = { 1311 .attrs = w83792d_attributes, 1312 }; 1313 1314 /* Return 0 if detection is successful, -ENODEV otherwise */ 1315 static int 1316 w83792d_detect(struct i2c_client *client, struct i2c_board_info *info) 1317 { 1318 struct i2c_adapter *adapter = client->adapter; 1319 int val1, val2; 1320 unsigned short address = client->addr; 1321 1322 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 1323 return -ENODEV; 1324 1325 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) 1326 return -ENODEV; 1327 1328 val1 = w83792d_read_value(client, W83792D_REG_BANK); 1329 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1330 /* Check for Winbond ID if in bank 0 */ 1331 if (!(val1 & 0x07)) { /* is Bank0 */ 1332 if ((!(val1 & 0x80) && val2 != 0xa3) || 1333 ((val1 & 0x80) && val2 != 0x5c)) 1334 return -ENODEV; 1335 } 1336 /* 1337 * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR 1338 * should match 1339 */ 1340 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address) 1341 return -ENODEV; 1342 1343 /* Put it now into bank 0 and Vendor ID High Byte */ 1344 w83792d_write_value(client, 1345 W83792D_REG_BANK, 1346 (w83792d_read_value(client, 1347 W83792D_REG_BANK) & 0x78) | 0x80); 1348 1349 /* Determine the chip type. */ 1350 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID); 1351 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1352 if (val1 != 0x7a || val2 != 0x5c) 1353 return -ENODEV; 1354 1355 strlcpy(info->type, "w83792d", I2C_NAME_SIZE); 1356 1357 return 0; 1358 } 1359 1360 static int 1361 w83792d_probe(struct i2c_client *client) 1362 { 1363 struct w83792d_data *data; 1364 struct device *dev = &client->dev; 1365 int i, val1, err; 1366 1367 data = devm_kzalloc(dev, sizeof(struct w83792d_data), GFP_KERNEL); 1368 if (!data) 1369 return -ENOMEM; 1370 1371 i2c_set_clientdata(client, data); 1372 mutex_init(&data->update_lock); 1373 1374 err = w83792d_detect_subclients(client); 1375 if (err) 1376 return err; 1377 1378 /* Initialize the chip */ 1379 w83792d_init_client(client); 1380 1381 /* A few vars need to be filled upon startup */ 1382 for (i = 0; i < 7; i++) { 1383 data->fan_min[i] = w83792d_read_value(client, 1384 W83792D_REG_FAN_MIN[i]); 1385 } 1386 1387 /* Register sysfs hooks */ 1388 err = sysfs_create_group(&dev->kobj, &w83792d_group); 1389 if (err) 1390 return err; 1391 1392 /* 1393 * Read GPIO enable register to check if pins for fan 4,5 are used as 1394 * GPIO 1395 */ 1396 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN); 1397 1398 if (!(val1 & 0x40)) { 1399 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]); 1400 if (err) 1401 goto exit_remove_files; 1402 } 1403 1404 if (!(val1 & 0x20)) { 1405 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]); 1406 if (err) 1407 goto exit_remove_files; 1408 } 1409 1410 val1 = w83792d_read_value(client, W83792D_REG_PIN); 1411 if (val1 & 0x40) { 1412 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]); 1413 if (err) 1414 goto exit_remove_files; 1415 } 1416 1417 if (val1 & 0x04) { 1418 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]); 1419 if (err) 1420 goto exit_remove_files; 1421 } 1422 1423 data->hwmon_dev = hwmon_device_register(dev); 1424 if (IS_ERR(data->hwmon_dev)) { 1425 err = PTR_ERR(data->hwmon_dev); 1426 goto exit_remove_files; 1427 } 1428 1429 return 0; 1430 1431 exit_remove_files: 1432 sysfs_remove_group(&dev->kobj, &w83792d_group); 1433 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1434 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]); 1435 return err; 1436 } 1437 1438 static int 1439 w83792d_remove(struct i2c_client *client) 1440 { 1441 struct w83792d_data *data = i2c_get_clientdata(client); 1442 int i; 1443 1444 hwmon_device_unregister(data->hwmon_dev); 1445 sysfs_remove_group(&client->dev.kobj, &w83792d_group); 1446 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1447 sysfs_remove_group(&client->dev.kobj, 1448 &w83792d_group_fan[i]); 1449 1450 return 0; 1451 } 1452 1453 static void 1454 w83792d_init_client(struct i2c_client *client) 1455 { 1456 u8 temp2_cfg, temp3_cfg, vid_in_b; 1457 1458 if (init) 1459 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80); 1460 1461 /* 1462 * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0): 1463 * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of 1464 * vin0/vin1 can be modified by user; 1465 * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of 1466 * vin0/vin1 auto-updated, can NOT be modified by user. 1467 */ 1468 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B); 1469 w83792d_write_value(client, W83792D_REG_VID_IN_B, 1470 vid_in_b & 0xbf); 1471 1472 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG); 1473 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG); 1474 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG, 1475 temp2_cfg & 0xe6); 1476 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG, 1477 temp3_cfg & 0xe6); 1478 1479 /* Start monitoring */ 1480 w83792d_write_value(client, W83792D_REG_CONFIG, 1481 (w83792d_read_value(client, 1482 W83792D_REG_CONFIG) & 0xf7) 1483 | 0x01); 1484 } 1485 1486 static struct w83792d_data *w83792d_update_device(struct device *dev) 1487 { 1488 struct i2c_client *client = to_i2c_client(dev); 1489 struct w83792d_data *data = i2c_get_clientdata(client); 1490 int i, j; 1491 u8 reg_array_tmp[4], reg_tmp; 1492 1493 mutex_lock(&data->update_lock); 1494 1495 if (time_after 1496 (jiffies - data->last_updated, (unsigned long) (HZ * 3)) 1497 || time_before(jiffies, data->last_updated) || !data->valid) { 1498 dev_dbg(dev, "Starting device update\n"); 1499 1500 /* Update the voltages measured value and limits */ 1501 for (i = 0; i < 9; i++) { 1502 data->in[i] = w83792d_read_value(client, 1503 W83792D_REG_IN[i]); 1504 data->in_max[i] = w83792d_read_value(client, 1505 W83792D_REG_IN_MAX[i]); 1506 data->in_min[i] = w83792d_read_value(client, 1507 W83792D_REG_IN_MIN[i]); 1508 } 1509 data->low_bits = w83792d_read_value(client, 1510 W83792D_REG_LOW_BITS1) + 1511 (w83792d_read_value(client, 1512 W83792D_REG_LOW_BITS2) << 8); 1513 for (i = 0; i < 7; i++) { 1514 /* Update the Fan measured value and limits */ 1515 data->fan[i] = w83792d_read_value(client, 1516 W83792D_REG_FAN[i]); 1517 data->fan_min[i] = w83792d_read_value(client, 1518 W83792D_REG_FAN_MIN[i]); 1519 /* Update the PWM/DC Value and PWM/DC flag */ 1520 data->pwm[i] = w83792d_read_value(client, 1521 W83792D_REG_PWM[i]); 1522 } 1523 1524 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG); 1525 data->pwmenable[0] = reg_tmp & 0x03; 1526 data->pwmenable[1] = (reg_tmp>>2) & 0x03; 1527 data->pwmenable[2] = (reg_tmp>>4) & 0x03; 1528 1529 for (i = 0; i < 3; i++) { 1530 data->temp1[i] = w83792d_read_value(client, 1531 W83792D_REG_TEMP1[i]); 1532 } 1533 for (i = 0; i < 2; i++) { 1534 for (j = 0; j < 6; j++) { 1535 data->temp_add[i][j] = w83792d_read_value( 1536 client, W83792D_REG_TEMP_ADD[i][j]); 1537 } 1538 } 1539 1540 /* Update the Fan Divisor */ 1541 for (i = 0; i < 4; i++) { 1542 reg_array_tmp[i] = w83792d_read_value(client, 1543 W83792D_REG_FAN_DIV[i]); 1544 } 1545 data->fan_div[0] = reg_array_tmp[0] & 0x07; 1546 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07; 1547 data->fan_div[2] = reg_array_tmp[1] & 0x07; 1548 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07; 1549 data->fan_div[4] = reg_array_tmp[2] & 0x07; 1550 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07; 1551 data->fan_div[6] = reg_array_tmp[3] & 0x07; 1552 1553 /* Update the realtime status */ 1554 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) + 1555 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) + 1556 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16); 1557 1558 /* Update CaseOpen status and it's CLR_CHS. */ 1559 data->chassis = (w83792d_read_value(client, 1560 W83792D_REG_CHASSIS) >> 5) & 0x01; 1561 1562 /* Update Thermal Cruise/Smart Fan I target value */ 1563 for (i = 0; i < 3; i++) { 1564 data->thermal_cruise[i] = 1565 w83792d_read_value(client, 1566 W83792D_REG_THERMAL[i]) & 0x7f; 1567 } 1568 1569 /* Update Smart Fan I/II tolerance */ 1570 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]); 1571 data->tolerance[0] = reg_tmp & 0x0f; 1572 data->tolerance[1] = (reg_tmp >> 4) & 0x0f; 1573 data->tolerance[2] = w83792d_read_value(client, 1574 W83792D_REG_TOLERANCE[2]) & 0x0f; 1575 1576 /* Update Smart Fan II temperature points */ 1577 for (i = 0; i < 3; i++) { 1578 for (j = 0; j < 4; j++) { 1579 data->sf2_points[i][j] 1580 = w83792d_read_value(client, 1581 W83792D_REG_POINTS[i][j]) & 0x7f; 1582 } 1583 } 1584 1585 /* Update Smart Fan II duty cycle levels */ 1586 for (i = 0; i < 3; i++) { 1587 reg_tmp = w83792d_read_value(client, 1588 W83792D_REG_LEVELS[i][0]); 1589 data->sf2_levels[i][0] = reg_tmp & 0x0f; 1590 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f; 1591 reg_tmp = w83792d_read_value(client, 1592 W83792D_REG_LEVELS[i][2]); 1593 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f; 1594 data->sf2_levels[i][3] = reg_tmp & 0x0f; 1595 } 1596 1597 data->last_updated = jiffies; 1598 data->valid = 1; 1599 } 1600 1601 mutex_unlock(&data->update_lock); 1602 1603 #ifdef DEBUG 1604 w83792d_print_debug(data, dev); 1605 #endif 1606 1607 return data; 1608 } 1609 1610 #ifdef DEBUG 1611 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev) 1612 { 1613 int i = 0, j = 0; 1614 dev_dbg(dev, "==========The following is the debug message...========\n"); 1615 dev_dbg(dev, "9 set of Voltages: =====>\n"); 1616 for (i = 0; i < 9; i++) { 1617 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]); 1618 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]); 1619 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]); 1620 } 1621 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff); 1622 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8); 1623 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n"); 1624 for (i = 0; i < 7; i++) { 1625 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]); 1626 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]); 1627 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]); 1628 } 1629 dev_dbg(dev, "3 set of Temperatures: =====>\n"); 1630 for (i = 0; i < 3; i++) 1631 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]); 1632 1633 for (i = 0; i < 2; i++) { 1634 for (j = 0; j < 6; j++) { 1635 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j, 1636 data->temp_add[i][j]); 1637 } 1638 } 1639 1640 for (i = 0; i < 7; i++) 1641 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]); 1642 1643 dev_dbg(dev, "==========End of the debug message...================\n"); 1644 dev_dbg(dev, "\n"); 1645 } 1646 #endif 1647 1648 module_i2c_driver(w83792d_driver); 1649 1650 MODULE_AUTHOR("Shane Huang (Winbond)"); 1651 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6"); 1652 MODULE_LICENSE("GPL"); 1653