1 /* 2 * w83792d.c - Part of lm_sensors, Linux kernel modules for hardware 3 * monitoring 4 * Copyright (C) 2004, 2005 Winbond Electronics Corp. 5 * Chunhao Huang <DZShen@Winbond.com.tw>, 6 * Rudolf Marek <r.marek@assembler.cz> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 21 * 22 * Note: 23 * 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver. 24 * 2. This driver is only for Winbond W83792D C version device, there 25 * are also some motherboards with B version W83792D device. The 26 * calculation method to in6-in7(measured value, limits) is a little 27 * different between C and B version. C or B version can be identified 28 * by CR[0x49h]. 29 */ 30 31 /* 32 * Supports following chips: 33 * 34 * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA 35 * w83792d 9 7 7 3 0x7a 0x5ca3 yes no 36 */ 37 38 #include <linux/module.h> 39 #include <linux/init.h> 40 #include <linux/slab.h> 41 #include <linux/i2c.h> 42 #include <linux/hwmon.h> 43 #include <linux/hwmon-sysfs.h> 44 #include <linux/err.h> 45 #include <linux/mutex.h> 46 #include <linux/sysfs.h> 47 48 /* Addresses to scan */ 49 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, 50 I2C_CLIENT_END }; 51 52 /* Insmod parameters */ 53 54 static unsigned short force_subclients[4]; 55 module_param_array(force_subclients, short, NULL, 0); 56 MODULE_PARM_DESC(force_subclients, "List of subclient addresses: " 57 "{bus, clientaddr, subclientaddr1, subclientaddr2}"); 58 59 static bool init; 60 module_param(init, bool, 0); 61 MODULE_PARM_DESC(init, "Set to one to force chip initialization"); 62 63 /* The W83792D registers */ 64 static const u8 W83792D_REG_IN[9] = { 65 0x20, /* Vcore A in DataSheet */ 66 0x21, /* Vcore B in DataSheet */ 67 0x22, /* VIN0 in DataSheet */ 68 0x23, /* VIN1 in DataSheet */ 69 0x24, /* VIN2 in DataSheet */ 70 0x25, /* VIN3 in DataSheet */ 71 0x26, /* 5VCC in DataSheet */ 72 0xB0, /* 5VSB in DataSheet */ 73 0xB1 /* VBAT in DataSheet */ 74 }; 75 #define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */ 76 #define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */ 77 static const u8 W83792D_REG_IN_MAX[9] = { 78 0x2B, /* Vcore A High Limit in DataSheet */ 79 0x2D, /* Vcore B High Limit in DataSheet */ 80 0x2F, /* VIN0 High Limit in DataSheet */ 81 0x31, /* VIN1 High Limit in DataSheet */ 82 0x33, /* VIN2 High Limit in DataSheet */ 83 0x35, /* VIN3 High Limit in DataSheet */ 84 0x37, /* 5VCC High Limit in DataSheet */ 85 0xB4, /* 5VSB High Limit in DataSheet */ 86 0xB6 /* VBAT High Limit in DataSheet */ 87 }; 88 static const u8 W83792D_REG_IN_MIN[9] = { 89 0x2C, /* Vcore A Low Limit in DataSheet */ 90 0x2E, /* Vcore B Low Limit in DataSheet */ 91 0x30, /* VIN0 Low Limit in DataSheet */ 92 0x32, /* VIN1 Low Limit in DataSheet */ 93 0x34, /* VIN2 Low Limit in DataSheet */ 94 0x36, /* VIN3 Low Limit in DataSheet */ 95 0x38, /* 5VCC Low Limit in DataSheet */ 96 0xB5, /* 5VSB Low Limit in DataSheet */ 97 0xB7 /* VBAT Low Limit in DataSheet */ 98 }; 99 static const u8 W83792D_REG_FAN[7] = { 100 0x28, /* FAN 1 Count in DataSheet */ 101 0x29, /* FAN 2 Count in DataSheet */ 102 0x2A, /* FAN 3 Count in DataSheet */ 103 0xB8, /* FAN 4 Count in DataSheet */ 104 0xB9, /* FAN 5 Count in DataSheet */ 105 0xBA, /* FAN 6 Count in DataSheet */ 106 0xBE /* FAN 7 Count in DataSheet */ 107 }; 108 static const u8 W83792D_REG_FAN_MIN[7] = { 109 0x3B, /* FAN 1 Count Low Limit in DataSheet */ 110 0x3C, /* FAN 2 Count Low Limit in DataSheet */ 111 0x3D, /* FAN 3 Count Low Limit in DataSheet */ 112 0xBB, /* FAN 4 Count Low Limit in DataSheet */ 113 0xBC, /* FAN 5 Count Low Limit in DataSheet */ 114 0xBD, /* FAN 6 Count Low Limit in DataSheet */ 115 0xBF /* FAN 7 Count Low Limit in DataSheet */ 116 }; 117 #define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */ 118 static const u8 W83792D_REG_FAN_DIV[4] = { 119 0x47, /* contains FAN2 and FAN1 Divisor */ 120 0x5B, /* contains FAN4 and FAN3 Divisor */ 121 0x5C, /* contains FAN6 and FAN5 Divisor */ 122 0x9E /* contains FAN7 Divisor. */ 123 }; 124 static const u8 W83792D_REG_PWM[7] = { 125 0x81, /* FAN 1 Duty Cycle, be used to control */ 126 0x83, /* FAN 2 Duty Cycle, be used to control */ 127 0x94, /* FAN 3 Duty Cycle, be used to control */ 128 0xA3, /* FAN 4 Duty Cycle, be used to control */ 129 0xA4, /* FAN 5 Duty Cycle, be used to control */ 130 0xA5, /* FAN 6 Duty Cycle, be used to control */ 131 0xA6 /* FAN 7 Duty Cycle, be used to control */ 132 }; 133 #define W83792D_REG_BANK 0x4E 134 #define W83792D_REG_TEMP2_CONFIG 0xC2 135 #define W83792D_REG_TEMP3_CONFIG 0xCA 136 137 static const u8 W83792D_REG_TEMP1[3] = { 138 0x27, /* TEMP 1 in DataSheet */ 139 0x39, /* TEMP 1 Over in DataSheet */ 140 0x3A, /* TEMP 1 Hyst in DataSheet */ 141 }; 142 143 static const u8 W83792D_REG_TEMP_ADD[2][6] = { 144 { 0xC0, /* TEMP 2 in DataSheet */ 145 0xC1, /* TEMP 2(0.5 deg) in DataSheet */ 146 0xC5, /* TEMP 2 Over High part in DataSheet */ 147 0xC6, /* TEMP 2 Over Low part in DataSheet */ 148 0xC3, /* TEMP 2 Thyst High part in DataSheet */ 149 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */ 150 { 0xC8, /* TEMP 3 in DataSheet */ 151 0xC9, /* TEMP 3(0.5 deg) in DataSheet */ 152 0xCD, /* TEMP 3 Over High part in DataSheet */ 153 0xCE, /* TEMP 3 Over Low part in DataSheet */ 154 0xCB, /* TEMP 3 Thyst High part in DataSheet */ 155 0xCC } /* TEMP 3 Thyst Low part in DataSheet */ 156 }; 157 158 static const u8 W83792D_REG_THERMAL[3] = { 159 0x85, /* SmartFanI: Fan1 target value */ 160 0x86, /* SmartFanI: Fan2 target value */ 161 0x96 /* SmartFanI: Fan3 target value */ 162 }; 163 164 static const u8 W83792D_REG_TOLERANCE[3] = { 165 0x87, /* (bit3-0)SmartFan Fan1 tolerance */ 166 0x87, /* (bit7-4)SmartFan Fan2 tolerance */ 167 0x97 /* (bit3-0)SmartFan Fan3 tolerance */ 168 }; 169 170 static const u8 W83792D_REG_POINTS[3][4] = { 171 { 0x85, /* SmartFanII: Fan1 temp point 1 */ 172 0xE3, /* SmartFanII: Fan1 temp point 2 */ 173 0xE4, /* SmartFanII: Fan1 temp point 3 */ 174 0xE5 }, /* SmartFanII: Fan1 temp point 4 */ 175 { 0x86, /* SmartFanII: Fan2 temp point 1 */ 176 0xE6, /* SmartFanII: Fan2 temp point 2 */ 177 0xE7, /* SmartFanII: Fan2 temp point 3 */ 178 0xE8 }, /* SmartFanII: Fan2 temp point 4 */ 179 { 0x96, /* SmartFanII: Fan3 temp point 1 */ 180 0xE9, /* SmartFanII: Fan3 temp point 2 */ 181 0xEA, /* SmartFanII: Fan3 temp point 3 */ 182 0xEB } /* SmartFanII: Fan3 temp point 4 */ 183 }; 184 185 static const u8 W83792D_REG_LEVELS[3][4] = { 186 { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */ 187 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */ 188 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */ 189 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */ 190 { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */ 191 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */ 192 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */ 193 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */ 194 { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */ 195 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */ 196 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */ 197 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */ 198 }; 199 200 #define W83792D_REG_GPIO_EN 0x1A 201 #define W83792D_REG_CONFIG 0x40 202 #define W83792D_REG_VID_FANDIV 0x47 203 #define W83792D_REG_CHIPID 0x49 204 #define W83792D_REG_WCHIPID 0x58 205 #define W83792D_REG_CHIPMAN 0x4F 206 #define W83792D_REG_PIN 0x4B 207 #define W83792D_REG_I2C_SUBADDR 0x4A 208 209 #define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */ 210 #define W83792D_REG_ALARM2 0xAA /* realtime status register2 */ 211 #define W83792D_REG_ALARM3 0xAB /* realtime status register3 */ 212 #define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */ 213 #define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */ 214 215 /* control in0/in1 's limit modifiability */ 216 #define W83792D_REG_VID_IN_B 0x17 217 218 #define W83792D_REG_VBAT 0x5D 219 #define W83792D_REG_I2C_ADDR 0x48 220 221 /* 222 * Conversions. Rounding and limit checking is only done on the TO_REG 223 * variants. Note that you should be a bit careful with which arguments 224 * these macros are called: arguments may be evaluated more than once. 225 * Fixing this is just not worth it. 226 */ 227 #define IN_FROM_REG(nr, val) (((nr) <= 1) ? ((val) * 2) : \ 228 ((((nr) == 6) || ((nr) == 7)) ? ((val) * 6) : ((val) * 4))) 229 #define IN_TO_REG(nr, val) (((nr) <= 1) ? ((val) / 2) : \ 230 ((((nr) == 6) || ((nr) == 7)) ? ((val) / 6) : ((val) / 4))) 231 232 static inline u8 233 FAN_TO_REG(long rpm, int div) 234 { 235 if (rpm == 0) 236 return 255; 237 rpm = SENSORS_LIMIT(rpm, 1, 1000000); 238 return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); 239 } 240 241 #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \ 242 ((val) == 255 ? 0 : \ 243 1350000 / ((val) * (div)))) 244 245 /* for temp1 */ 246 #define TEMP1_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \ 247 : (val)) / 1000, 0, 0xff)) 248 #define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000) 249 /* for temp2 and temp3, because they need additional resolution */ 250 #define TEMP_ADD_FROM_REG(val1, val2) \ 251 ((((val1) & 0x80 ? (val1)-0x100 \ 252 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0)) 253 #define TEMP_ADD_TO_REG_HIGH(val) \ 254 (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \ 255 : (val)) / 1000, 0, 0xff)) 256 #define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00) 257 258 #define DIV_FROM_REG(val) (1 << (val)) 259 260 static inline u8 261 DIV_TO_REG(long val) 262 { 263 int i; 264 val = SENSORS_LIMIT(val, 1, 128) >> 1; 265 for (i = 0; i < 7; i++) { 266 if (val == 0) 267 break; 268 val >>= 1; 269 } 270 return (u8)i; 271 } 272 273 struct w83792d_data { 274 struct device *hwmon_dev; 275 276 struct mutex update_lock; 277 char valid; /* !=0 if following fields are valid */ 278 unsigned long last_updated; /* In jiffies */ 279 280 /* array of 2 pointers to subclients */ 281 struct i2c_client *lm75[2]; 282 283 u8 in[9]; /* Register value */ 284 u8 in_max[9]; /* Register value */ 285 u8 in_min[9]; /* Register value */ 286 u16 low_bits; /* Additional resolution to voltage in6-0 */ 287 u8 fan[7]; /* Register value */ 288 u8 fan_min[7]; /* Register value */ 289 u8 temp1[3]; /* current, over, thyst */ 290 u8 temp_add[2][6]; /* Register value */ 291 u8 fan_div[7]; /* Register encoding, shifted right */ 292 u8 pwm[7]; /* 293 * We only consider the first 3 set of pwm, 294 * although 792 chip has 7 set of pwm. 295 */ 296 u8 pwmenable[3]; 297 u32 alarms; /* realtime status register encoding,combined */ 298 u8 chassis; /* Chassis status */ 299 u8 chassis_clear; /* CLR_CHS, clear chassis intrusion detection */ 300 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */ 301 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */ 302 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */ 303 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */ 304 }; 305 306 static int w83792d_probe(struct i2c_client *client, 307 const struct i2c_device_id *id); 308 static int w83792d_detect(struct i2c_client *client, 309 struct i2c_board_info *info); 310 static int w83792d_remove(struct i2c_client *client); 311 static struct w83792d_data *w83792d_update_device(struct device *dev); 312 313 #ifdef DEBUG 314 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev); 315 #endif 316 317 static void w83792d_init_client(struct i2c_client *client); 318 319 static const struct i2c_device_id w83792d_id[] = { 320 { "w83792d", 0 }, 321 { } 322 }; 323 MODULE_DEVICE_TABLE(i2c, w83792d_id); 324 325 static struct i2c_driver w83792d_driver = { 326 .class = I2C_CLASS_HWMON, 327 .driver = { 328 .name = "w83792d", 329 }, 330 .probe = w83792d_probe, 331 .remove = w83792d_remove, 332 .id_table = w83792d_id, 333 .detect = w83792d_detect, 334 .address_list = normal_i2c, 335 }; 336 337 static inline long in_count_from_reg(int nr, struct w83792d_data *data) 338 { 339 /* in7 and in8 do not have low bits, but the formula still works */ 340 return (data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03); 341 } 342 343 /* 344 * The SMBus locks itself. The Winbond W83792D chip has a bank register, 345 * but the driver only accesses registers in bank 0, so we don't have 346 * to switch banks and lock access between switches. 347 */ 348 static inline int w83792d_read_value(struct i2c_client *client, u8 reg) 349 { 350 return i2c_smbus_read_byte_data(client, reg); 351 } 352 353 static inline int 354 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value) 355 { 356 return i2c_smbus_write_byte_data(client, reg, value); 357 } 358 359 /* following are the sysfs callback functions */ 360 static ssize_t show_in(struct device *dev, struct device_attribute *attr, 361 char *buf) 362 { 363 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 364 int nr = sensor_attr->index; 365 struct w83792d_data *data = w83792d_update_device(dev); 366 return sprintf(buf, "%ld\n", 367 IN_FROM_REG(nr, in_count_from_reg(nr, data))); 368 } 369 370 #define show_in_reg(reg) \ 371 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ 372 char *buf) \ 373 { \ 374 struct sensor_device_attribute *sensor_attr \ 375 = to_sensor_dev_attr(attr); \ 376 int nr = sensor_attr->index; \ 377 struct w83792d_data *data = w83792d_update_device(dev); \ 378 return sprintf(buf, "%ld\n", \ 379 (long)(IN_FROM_REG(nr, data->reg[nr]) * 4)); \ 380 } 381 382 show_in_reg(in_min); 383 show_in_reg(in_max); 384 385 #define store_in_reg(REG, reg) \ 386 static ssize_t store_in_##reg(struct device *dev, \ 387 struct device_attribute *attr, \ 388 const char *buf, size_t count) \ 389 { \ 390 struct sensor_device_attribute *sensor_attr \ 391 = to_sensor_dev_attr(attr); \ 392 int nr = sensor_attr->index; \ 393 struct i2c_client *client = to_i2c_client(dev); \ 394 struct w83792d_data *data = i2c_get_clientdata(client); \ 395 unsigned long val; \ 396 int err = kstrtoul(buf, 10, &val); \ 397 if (err) \ 398 return err; \ 399 mutex_lock(&data->update_lock); \ 400 data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val) / 4, 0, 255); \ 401 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], \ 402 data->in_##reg[nr]); \ 403 mutex_unlock(&data->update_lock); \ 404 \ 405 return count; \ 406 } 407 store_in_reg(MIN, min); 408 store_in_reg(MAX, max); 409 410 #define show_fan_reg(reg) \ 411 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ 412 char *buf) \ 413 { \ 414 struct sensor_device_attribute *sensor_attr \ 415 = to_sensor_dev_attr(attr); \ 416 int nr = sensor_attr->index - 1; \ 417 struct w83792d_data *data = w83792d_update_device(dev); \ 418 return sprintf(buf, "%d\n", \ 419 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \ 420 } 421 422 show_fan_reg(fan); 423 show_fan_reg(fan_min); 424 425 static ssize_t 426 store_fan_min(struct device *dev, struct device_attribute *attr, 427 const char *buf, size_t count) 428 { 429 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 430 int nr = sensor_attr->index - 1; 431 struct i2c_client *client = to_i2c_client(dev); 432 struct w83792d_data *data = i2c_get_clientdata(client); 433 unsigned long val; 434 int err; 435 436 err = kstrtoul(buf, 10, &val); 437 if (err) 438 return err; 439 440 mutex_lock(&data->update_lock); 441 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); 442 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], 443 data->fan_min[nr]); 444 mutex_unlock(&data->update_lock); 445 446 return count; 447 } 448 449 static ssize_t 450 show_fan_div(struct device *dev, struct device_attribute *attr, 451 char *buf) 452 { 453 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 454 int nr = sensor_attr->index; 455 struct w83792d_data *data = w83792d_update_device(dev); 456 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1])); 457 } 458 459 /* 460 * Note: we save and restore the fan minimum here, because its value is 461 * determined in part by the fan divisor. This follows the principle of 462 * least surprise; the user doesn't expect the fan minimum to change just 463 * because the divisor changed. 464 */ 465 static ssize_t 466 store_fan_div(struct device *dev, struct device_attribute *attr, 467 const char *buf, size_t count) 468 { 469 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 470 int nr = sensor_attr->index - 1; 471 struct i2c_client *client = to_i2c_client(dev); 472 struct w83792d_data *data = i2c_get_clientdata(client); 473 unsigned long min; 474 /*u8 reg;*/ 475 u8 fan_div_reg = 0; 476 u8 tmp_fan_div; 477 unsigned long val; 478 int err; 479 480 err = kstrtoul(buf, 10, &val); 481 if (err) 482 return err; 483 484 /* Save fan_min */ 485 mutex_lock(&data->update_lock); 486 min = FAN_FROM_REG(data->fan_min[nr], 487 DIV_FROM_REG(data->fan_div[nr])); 488 489 data->fan_div[nr] = DIV_TO_REG(val); 490 491 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]); 492 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8; 493 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70) 494 : ((data->fan_div[nr]) & 0x07); 495 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1], 496 fan_div_reg | tmp_fan_div); 497 498 /* Restore fan_min */ 499 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); 500 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]); 501 mutex_unlock(&data->update_lock); 502 503 return count; 504 } 505 506 /* read/write the temperature1, includes measured value and limits */ 507 508 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr, 509 char *buf) 510 { 511 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 512 int nr = sensor_attr->index; 513 struct w83792d_data *data = w83792d_update_device(dev); 514 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr])); 515 } 516 517 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr, 518 const char *buf, size_t count) 519 { 520 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 521 int nr = sensor_attr->index; 522 struct i2c_client *client = to_i2c_client(dev); 523 struct w83792d_data *data = i2c_get_clientdata(client); 524 long val; 525 int err; 526 527 err = kstrtol(buf, 10, &val); 528 if (err) 529 return err; 530 531 mutex_lock(&data->update_lock); 532 data->temp1[nr] = TEMP1_TO_REG(val); 533 w83792d_write_value(client, W83792D_REG_TEMP1[nr], 534 data->temp1[nr]); 535 mutex_unlock(&data->update_lock); 536 537 return count; 538 } 539 540 /* read/write the temperature2-3, includes measured value and limits */ 541 542 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr, 543 char *buf) 544 { 545 struct sensor_device_attribute_2 *sensor_attr 546 = to_sensor_dev_attr_2(attr); 547 int nr = sensor_attr->nr; 548 int index = sensor_attr->index; 549 struct w83792d_data *data = w83792d_update_device(dev); 550 return sprintf(buf, "%ld\n", 551 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index], 552 data->temp_add[nr][index+1])); 553 } 554 555 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr, 556 const char *buf, size_t count) 557 { 558 struct sensor_device_attribute_2 *sensor_attr 559 = to_sensor_dev_attr_2(attr); 560 int nr = sensor_attr->nr; 561 int index = sensor_attr->index; 562 struct i2c_client *client = to_i2c_client(dev); 563 struct w83792d_data *data = i2c_get_clientdata(client); 564 long val; 565 int err; 566 567 err = kstrtol(buf, 10, &val); 568 if (err) 569 return err; 570 571 mutex_lock(&data->update_lock); 572 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val); 573 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val); 574 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index], 575 data->temp_add[nr][index]); 576 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1], 577 data->temp_add[nr][index+1]); 578 mutex_unlock(&data->update_lock); 579 580 return count; 581 } 582 583 /* get reatime status of all sensors items: voltage, temp, fan */ 584 static ssize_t 585 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) 586 { 587 struct w83792d_data *data = w83792d_update_device(dev); 588 return sprintf(buf, "%d\n", data->alarms); 589 } 590 591 static ssize_t show_alarm(struct device *dev, 592 struct device_attribute *attr, char *buf) 593 { 594 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 595 int nr = sensor_attr->index; 596 struct w83792d_data *data = w83792d_update_device(dev); 597 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1); 598 } 599 600 static ssize_t 601 show_pwm(struct device *dev, struct device_attribute *attr, 602 char *buf) 603 { 604 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 605 int nr = sensor_attr->index; 606 struct w83792d_data *data = w83792d_update_device(dev); 607 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4); 608 } 609 610 static ssize_t 611 show_pwmenable(struct device *dev, struct device_attribute *attr, 612 char *buf) 613 { 614 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 615 int nr = sensor_attr->index - 1; 616 struct w83792d_data *data = w83792d_update_device(dev); 617 long pwm_enable_tmp = 1; 618 619 switch (data->pwmenable[nr]) { 620 case 0: 621 pwm_enable_tmp = 1; /* manual mode */ 622 break; 623 case 1: 624 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */ 625 break; 626 case 2: 627 pwm_enable_tmp = 2; /* Smart Fan II */ 628 break; 629 } 630 631 return sprintf(buf, "%ld\n", pwm_enable_tmp); 632 } 633 634 static ssize_t 635 store_pwm(struct device *dev, struct device_attribute *attr, 636 const char *buf, size_t count) 637 { 638 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 639 int nr = sensor_attr->index; 640 struct i2c_client *client = to_i2c_client(dev); 641 struct w83792d_data *data = i2c_get_clientdata(client); 642 unsigned long val; 643 int err; 644 645 err = kstrtoul(buf, 10, &val); 646 if (err) 647 return err; 648 val = SENSORS_LIMIT(val, 0, 255) >> 4; 649 650 mutex_lock(&data->update_lock); 651 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0; 652 data->pwm[nr] = val; 653 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 654 mutex_unlock(&data->update_lock); 655 656 return count; 657 } 658 659 static ssize_t 660 store_pwmenable(struct device *dev, struct device_attribute *attr, 661 const char *buf, size_t count) 662 { 663 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 664 int nr = sensor_attr->index - 1; 665 struct i2c_client *client = to_i2c_client(dev); 666 struct w83792d_data *data = i2c_get_clientdata(client); 667 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp; 668 unsigned long val; 669 int err; 670 671 err = kstrtoul(buf, 10, &val); 672 if (err) 673 return err; 674 675 if (val < 1 || val > 3) 676 return -EINVAL; 677 678 mutex_lock(&data->update_lock); 679 switch (val) { 680 case 1: 681 data->pwmenable[nr] = 0; /* manual mode */ 682 break; 683 case 2: 684 data->pwmenable[nr] = 2; /* Smart Fan II */ 685 break; 686 case 3: 687 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */ 688 break; 689 } 690 cfg1_tmp = data->pwmenable[0]; 691 cfg2_tmp = (data->pwmenable[1]) << 2; 692 cfg3_tmp = (data->pwmenable[2]) << 4; 693 cfg4_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG) & 0xc0; 694 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp; 695 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp); 696 mutex_unlock(&data->update_lock); 697 698 return count; 699 } 700 701 static ssize_t 702 show_pwm_mode(struct device *dev, struct device_attribute *attr, 703 char *buf) 704 { 705 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 706 int nr = sensor_attr->index; 707 struct w83792d_data *data = w83792d_update_device(dev); 708 return sprintf(buf, "%d\n", data->pwm[nr] >> 7); 709 } 710 711 static ssize_t 712 store_pwm_mode(struct device *dev, struct device_attribute *attr, 713 const char *buf, size_t count) 714 { 715 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 716 int nr = sensor_attr->index; 717 struct i2c_client *client = to_i2c_client(dev); 718 struct w83792d_data *data = i2c_get_clientdata(client); 719 unsigned long val; 720 int err; 721 722 err = kstrtoul(buf, 10, &val); 723 if (err) 724 return err; 725 if (val > 1) 726 return -EINVAL; 727 728 mutex_lock(&data->update_lock); 729 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]); 730 if (val) { /* PWM mode */ 731 data->pwm[nr] |= 0x80; 732 } else { /* DC mode */ 733 data->pwm[nr] &= 0x7f; 734 } 735 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 736 mutex_unlock(&data->update_lock); 737 738 return count; 739 } 740 741 static ssize_t 742 show_chassis(struct device *dev, struct device_attribute *attr, 743 char *buf) 744 { 745 struct w83792d_data *data = w83792d_update_device(dev); 746 return sprintf(buf, "%d\n", data->chassis); 747 } 748 749 static ssize_t 750 show_regs_chassis(struct device *dev, struct device_attribute *attr, 751 char *buf) 752 { 753 dev_warn(dev, 754 "Attribute %s is deprecated, use intrusion0_alarm instead\n", 755 "chassis"); 756 return show_chassis(dev, attr, buf); 757 } 758 759 static ssize_t 760 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf) 761 { 762 struct w83792d_data *data = w83792d_update_device(dev); 763 return sprintf(buf, "%d\n", data->chassis_clear); 764 } 765 766 static ssize_t 767 store_chassis_clear_legacy(struct device *dev, struct device_attribute *attr, 768 const char *buf, size_t count) 769 { 770 struct i2c_client *client = to_i2c_client(dev); 771 struct w83792d_data *data = i2c_get_clientdata(client); 772 unsigned long val; 773 int err; 774 u8 temp1 = 0, temp2 = 0; 775 776 dev_warn(dev, 777 "Attribute %s is deprecated, use intrusion0_alarm instead\n", 778 "chassis_clear"); 779 780 err = kstrtoul(buf, 10, &val); 781 if (err) 782 return err; 783 784 mutex_lock(&data->update_lock); 785 data->chassis_clear = SENSORS_LIMIT(val, 0, 1); 786 temp1 = ((data->chassis_clear) << 7) & 0x80; 787 temp2 = w83792d_read_value(client, 788 W83792D_REG_CHASSIS_CLR) & 0x7f; 789 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2); 790 mutex_unlock(&data->update_lock); 791 792 return count; 793 } 794 795 static ssize_t 796 store_chassis_clear(struct device *dev, struct device_attribute *attr, 797 const char *buf, size_t count) 798 { 799 struct i2c_client *client = to_i2c_client(dev); 800 struct w83792d_data *data = i2c_get_clientdata(client); 801 unsigned long val; 802 u8 reg; 803 804 if (kstrtoul(buf, 10, &val) || val != 0) 805 return -EINVAL; 806 807 mutex_lock(&data->update_lock); 808 reg = w83792d_read_value(client, W83792D_REG_CHASSIS_CLR); 809 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, reg | 0x80); 810 data->valid = 0; /* Force cache refresh */ 811 mutex_unlock(&data->update_lock); 812 813 return count; 814 } 815 816 /* For Smart Fan I / Thermal Cruise */ 817 static ssize_t 818 show_thermal_cruise(struct device *dev, struct device_attribute *attr, 819 char *buf) 820 { 821 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 822 int nr = sensor_attr->index; 823 struct w83792d_data *data = w83792d_update_device(dev); 824 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]); 825 } 826 827 static ssize_t 828 store_thermal_cruise(struct device *dev, struct device_attribute *attr, 829 const char *buf, size_t count) 830 { 831 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 832 int nr = sensor_attr->index - 1; 833 struct i2c_client *client = to_i2c_client(dev); 834 struct w83792d_data *data = i2c_get_clientdata(client); 835 u8 target_tmp = 0, target_mask = 0; 836 unsigned long val; 837 int err; 838 839 err = kstrtoul(buf, 10, &val); 840 if (err) 841 return err; 842 843 target_tmp = val; 844 target_tmp = target_tmp & 0x7f; 845 mutex_lock(&data->update_lock); 846 target_mask = w83792d_read_value(client, 847 W83792D_REG_THERMAL[nr]) & 0x80; 848 data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255); 849 w83792d_write_value(client, W83792D_REG_THERMAL[nr], 850 (data->thermal_cruise[nr]) | target_mask); 851 mutex_unlock(&data->update_lock); 852 853 return count; 854 } 855 856 /* For Smart Fan I/Thermal Cruise and Smart Fan II */ 857 static ssize_t 858 show_tolerance(struct device *dev, struct device_attribute *attr, 859 char *buf) 860 { 861 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 862 int nr = sensor_attr->index; 863 struct w83792d_data *data = w83792d_update_device(dev); 864 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]); 865 } 866 867 static ssize_t 868 store_tolerance(struct device *dev, struct device_attribute *attr, 869 const char *buf, size_t count) 870 { 871 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 872 int nr = sensor_attr->index - 1; 873 struct i2c_client *client = to_i2c_client(dev); 874 struct w83792d_data *data = i2c_get_clientdata(client); 875 u8 tol_tmp, tol_mask; 876 unsigned long val; 877 int err; 878 879 err = kstrtoul(buf, 10, &val); 880 if (err) 881 return err; 882 883 mutex_lock(&data->update_lock); 884 tol_mask = w83792d_read_value(client, 885 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0); 886 tol_tmp = SENSORS_LIMIT(val, 0, 15); 887 tol_tmp &= 0x0f; 888 data->tolerance[nr] = tol_tmp; 889 if (nr == 1) 890 tol_tmp <<= 4; 891 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr], 892 tol_mask | tol_tmp); 893 mutex_unlock(&data->update_lock); 894 895 return count; 896 } 897 898 /* For Smart Fan II */ 899 static ssize_t 900 show_sf2_point(struct device *dev, struct device_attribute *attr, 901 char *buf) 902 { 903 struct sensor_device_attribute_2 *sensor_attr 904 = to_sensor_dev_attr_2(attr); 905 int nr = sensor_attr->nr; 906 int index = sensor_attr->index; 907 struct w83792d_data *data = w83792d_update_device(dev); 908 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]); 909 } 910 911 static ssize_t 912 store_sf2_point(struct device *dev, struct device_attribute *attr, 913 const char *buf, size_t count) 914 { 915 struct sensor_device_attribute_2 *sensor_attr 916 = to_sensor_dev_attr_2(attr); 917 int nr = sensor_attr->nr - 1; 918 int index = sensor_attr->index - 1; 919 struct i2c_client *client = to_i2c_client(dev); 920 struct w83792d_data *data = i2c_get_clientdata(client); 921 u8 mask_tmp = 0; 922 unsigned long val; 923 int err; 924 925 err = kstrtoul(buf, 10, &val); 926 if (err) 927 return err; 928 929 mutex_lock(&data->update_lock); 930 data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127); 931 mask_tmp = w83792d_read_value(client, 932 W83792D_REG_POINTS[index][nr]) & 0x80; 933 w83792d_write_value(client, W83792D_REG_POINTS[index][nr], 934 mask_tmp|data->sf2_points[index][nr]); 935 mutex_unlock(&data->update_lock); 936 937 return count; 938 } 939 940 static ssize_t 941 show_sf2_level(struct device *dev, struct device_attribute *attr, 942 char *buf) 943 { 944 struct sensor_device_attribute_2 *sensor_attr 945 = to_sensor_dev_attr_2(attr); 946 int nr = sensor_attr->nr; 947 int index = sensor_attr->index; 948 struct w83792d_data *data = w83792d_update_device(dev); 949 return sprintf(buf, "%d\n", 950 (((data->sf2_levels[index-1][nr]) * 100) / 15)); 951 } 952 953 static ssize_t 954 store_sf2_level(struct device *dev, struct device_attribute *attr, 955 const char *buf, size_t count) 956 { 957 struct sensor_device_attribute_2 *sensor_attr 958 = to_sensor_dev_attr_2(attr); 959 int nr = sensor_attr->nr; 960 int index = sensor_attr->index - 1; 961 struct i2c_client *client = to_i2c_client(dev); 962 struct w83792d_data *data = i2c_get_clientdata(client); 963 u8 mask_tmp = 0, level_tmp = 0; 964 unsigned long val; 965 int err; 966 967 err = kstrtoul(buf, 10, &val); 968 if (err) 969 return err; 970 971 mutex_lock(&data->update_lock); 972 data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15); 973 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr]) 974 & ((nr == 3) ? 0xf0 : 0x0f); 975 if (nr == 3) 976 level_tmp = data->sf2_levels[index][nr]; 977 else 978 level_tmp = data->sf2_levels[index][nr] << 4; 979 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], 980 level_tmp | mask_tmp); 981 mutex_unlock(&data->update_lock); 982 983 return count; 984 } 985 986 987 static int 988 w83792d_detect_subclients(struct i2c_client *new_client) 989 { 990 int i, id, err; 991 int address = new_client->addr; 992 u8 val; 993 struct i2c_adapter *adapter = new_client->adapter; 994 struct w83792d_data *data = i2c_get_clientdata(new_client); 995 996 id = i2c_adapter_id(adapter); 997 if (force_subclients[0] == id && force_subclients[1] == address) { 998 for (i = 2; i <= 3; i++) { 999 if (force_subclients[i] < 0x48 || 1000 force_subclients[i] > 0x4f) { 1001 dev_err(&new_client->dev, "invalid subclient " 1002 "address %d; must be 0x48-0x4f\n", 1003 force_subclients[i]); 1004 err = -ENODEV; 1005 goto ERROR_SC_0; 1006 } 1007 } 1008 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR, 1009 (force_subclients[2] & 0x07) | 1010 ((force_subclients[3] & 0x07) << 4)); 1011 } 1012 1013 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR); 1014 if (!(val & 0x08)) 1015 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7)); 1016 if (!(val & 0x80)) { 1017 if ((data->lm75[0] != NULL) && 1018 ((val & 0x7) == ((val >> 4) & 0x7))) { 1019 dev_err(&new_client->dev, "duplicate addresses 0x%x, " 1020 "use force_subclient\n", data->lm75[0]->addr); 1021 err = -ENODEV; 1022 goto ERROR_SC_1; 1023 } 1024 data->lm75[1] = i2c_new_dummy(adapter, 1025 0x48 + ((val >> 4) & 0x7)); 1026 } 1027 1028 return 0; 1029 1030 /* Undo inits in case of errors */ 1031 1032 ERROR_SC_1: 1033 if (data->lm75[0] != NULL) 1034 i2c_unregister_device(data->lm75[0]); 1035 ERROR_SC_0: 1036 return err; 1037 } 1038 1039 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); 1040 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); 1041 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); 1042 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); 1043 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4); 1044 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5); 1045 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6); 1046 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7); 1047 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8); 1048 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO, 1049 show_in_min, store_in_min, 0); 1050 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, 1051 show_in_min, store_in_min, 1); 1052 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, 1053 show_in_min, store_in_min, 2); 1054 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO, 1055 show_in_min, store_in_min, 3); 1056 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO, 1057 show_in_min, store_in_min, 4); 1058 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO, 1059 show_in_min, store_in_min, 5); 1060 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO, 1061 show_in_min, store_in_min, 6); 1062 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO, 1063 show_in_min, store_in_min, 7); 1064 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO, 1065 show_in_min, store_in_min, 8); 1066 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO, 1067 show_in_max, store_in_max, 0); 1068 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, 1069 show_in_max, store_in_max, 1); 1070 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, 1071 show_in_max, store_in_max, 2); 1072 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO, 1073 show_in_max, store_in_max, 3); 1074 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO, 1075 show_in_max, store_in_max, 4); 1076 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO, 1077 show_in_max, store_in_max, 5); 1078 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO, 1079 show_in_max, store_in_max, 6); 1080 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO, 1081 show_in_max, store_in_max, 7); 1082 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO, 1083 show_in_max, store_in_max, 8); 1084 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0); 1085 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0); 1086 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0); 1087 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, 1088 show_temp1, store_temp1, 0, 1); 1089 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23, 1090 store_temp23, 0, 2); 1091 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23, 1092 store_temp23, 1, 2); 1093 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, 1094 show_temp1, store_temp1, 0, 2); 1095 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, 1096 show_temp23, store_temp23, 0, 4); 1097 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, 1098 show_temp23, store_temp23, 1, 4); 1099 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); 1100 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); 1101 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); 1102 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2); 1103 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3); 1104 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4); 1105 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5); 1106 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6); 1107 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7); 1108 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8); 1109 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9); 1110 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10); 1111 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11); 1112 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12); 1113 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15); 1114 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19); 1115 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20); 1116 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21); 1117 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22); 1118 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23); 1119 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL); 1120 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR, 1121 show_chassis_clear, store_chassis_clear_legacy); 1122 static DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR, 1123 show_chassis, store_chassis_clear); 1124 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0); 1125 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1); 1126 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2); 1127 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, 1128 show_pwmenable, store_pwmenable, 1); 1129 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, 1130 show_pwmenable, store_pwmenable, 2); 1131 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, 1132 show_pwmenable, store_pwmenable, 3); 1133 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, 1134 show_pwm_mode, store_pwm_mode, 0); 1135 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, 1136 show_pwm_mode, store_pwm_mode, 1); 1137 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, 1138 show_pwm_mode, store_pwm_mode, 2); 1139 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO, 1140 show_tolerance, store_tolerance, 1); 1141 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO, 1142 show_tolerance, store_tolerance, 2); 1143 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO, 1144 show_tolerance, store_tolerance, 3); 1145 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO, 1146 show_thermal_cruise, store_thermal_cruise, 1); 1147 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO, 1148 show_thermal_cruise, store_thermal_cruise, 2); 1149 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO, 1150 show_thermal_cruise, store_thermal_cruise, 3); 1151 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR, 1152 show_sf2_point, store_sf2_point, 1, 1); 1153 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR, 1154 show_sf2_point, store_sf2_point, 2, 1); 1155 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR, 1156 show_sf2_point, store_sf2_point, 3, 1); 1157 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR, 1158 show_sf2_point, store_sf2_point, 4, 1); 1159 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR, 1160 show_sf2_point, store_sf2_point, 1, 2); 1161 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR, 1162 show_sf2_point, store_sf2_point, 2, 2); 1163 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR, 1164 show_sf2_point, store_sf2_point, 3, 2); 1165 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR, 1166 show_sf2_point, store_sf2_point, 4, 2); 1167 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR, 1168 show_sf2_point, store_sf2_point, 1, 3); 1169 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR, 1170 show_sf2_point, store_sf2_point, 2, 3); 1171 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR, 1172 show_sf2_point, store_sf2_point, 3, 3); 1173 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR, 1174 show_sf2_point, store_sf2_point, 4, 3); 1175 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR, 1176 show_sf2_level, store_sf2_level, 1, 1); 1177 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR, 1178 show_sf2_level, store_sf2_level, 2, 1); 1179 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR, 1180 show_sf2_level, store_sf2_level, 3, 1); 1181 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR, 1182 show_sf2_level, store_sf2_level, 1, 2); 1183 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR, 1184 show_sf2_level, store_sf2_level, 2, 2); 1185 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR, 1186 show_sf2_level, store_sf2_level, 3, 2); 1187 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR, 1188 show_sf2_level, store_sf2_level, 1, 3); 1189 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR, 1190 show_sf2_level, store_sf2_level, 2, 3); 1191 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR, 1192 show_sf2_level, store_sf2_level, 3, 3); 1193 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1); 1194 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2); 1195 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3); 1196 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4); 1197 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5); 1198 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6); 1199 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7); 1200 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, 1201 show_fan_min, store_fan_min, 1); 1202 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, 1203 show_fan_min, store_fan_min, 2); 1204 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, 1205 show_fan_min, store_fan_min, 3); 1206 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, 1207 show_fan_min, store_fan_min, 4); 1208 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO, 1209 show_fan_min, store_fan_min, 5); 1210 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO, 1211 show_fan_min, store_fan_min, 6); 1212 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO, 1213 show_fan_min, store_fan_min, 7); 1214 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO, 1215 show_fan_div, store_fan_div, 1); 1216 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO, 1217 show_fan_div, store_fan_div, 2); 1218 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO, 1219 show_fan_div, store_fan_div, 3); 1220 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO, 1221 show_fan_div, store_fan_div, 4); 1222 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO, 1223 show_fan_div, store_fan_div, 5); 1224 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO, 1225 show_fan_div, store_fan_div, 6); 1226 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO, 1227 show_fan_div, store_fan_div, 7); 1228 1229 static struct attribute *w83792d_attributes_fan[4][5] = { 1230 { 1231 &sensor_dev_attr_fan4_input.dev_attr.attr, 1232 &sensor_dev_attr_fan4_min.dev_attr.attr, 1233 &sensor_dev_attr_fan4_div.dev_attr.attr, 1234 &sensor_dev_attr_fan4_alarm.dev_attr.attr, 1235 NULL 1236 }, { 1237 &sensor_dev_attr_fan5_input.dev_attr.attr, 1238 &sensor_dev_attr_fan5_min.dev_attr.attr, 1239 &sensor_dev_attr_fan5_div.dev_attr.attr, 1240 &sensor_dev_attr_fan5_alarm.dev_attr.attr, 1241 NULL 1242 }, { 1243 &sensor_dev_attr_fan6_input.dev_attr.attr, 1244 &sensor_dev_attr_fan6_min.dev_attr.attr, 1245 &sensor_dev_attr_fan6_div.dev_attr.attr, 1246 &sensor_dev_attr_fan6_alarm.dev_attr.attr, 1247 NULL 1248 }, { 1249 &sensor_dev_attr_fan7_input.dev_attr.attr, 1250 &sensor_dev_attr_fan7_min.dev_attr.attr, 1251 &sensor_dev_attr_fan7_div.dev_attr.attr, 1252 &sensor_dev_attr_fan7_alarm.dev_attr.attr, 1253 NULL 1254 } 1255 }; 1256 1257 static const struct attribute_group w83792d_group_fan[4] = { 1258 { .attrs = w83792d_attributes_fan[0] }, 1259 { .attrs = w83792d_attributes_fan[1] }, 1260 { .attrs = w83792d_attributes_fan[2] }, 1261 { .attrs = w83792d_attributes_fan[3] }, 1262 }; 1263 1264 static struct attribute *w83792d_attributes[] = { 1265 &sensor_dev_attr_in0_input.dev_attr.attr, 1266 &sensor_dev_attr_in0_max.dev_attr.attr, 1267 &sensor_dev_attr_in0_min.dev_attr.attr, 1268 &sensor_dev_attr_in1_input.dev_attr.attr, 1269 &sensor_dev_attr_in1_max.dev_attr.attr, 1270 &sensor_dev_attr_in1_min.dev_attr.attr, 1271 &sensor_dev_attr_in2_input.dev_attr.attr, 1272 &sensor_dev_attr_in2_max.dev_attr.attr, 1273 &sensor_dev_attr_in2_min.dev_attr.attr, 1274 &sensor_dev_attr_in3_input.dev_attr.attr, 1275 &sensor_dev_attr_in3_max.dev_attr.attr, 1276 &sensor_dev_attr_in3_min.dev_attr.attr, 1277 &sensor_dev_attr_in4_input.dev_attr.attr, 1278 &sensor_dev_attr_in4_max.dev_attr.attr, 1279 &sensor_dev_attr_in4_min.dev_attr.attr, 1280 &sensor_dev_attr_in5_input.dev_attr.attr, 1281 &sensor_dev_attr_in5_max.dev_attr.attr, 1282 &sensor_dev_attr_in5_min.dev_attr.attr, 1283 &sensor_dev_attr_in6_input.dev_attr.attr, 1284 &sensor_dev_attr_in6_max.dev_attr.attr, 1285 &sensor_dev_attr_in6_min.dev_attr.attr, 1286 &sensor_dev_attr_in7_input.dev_attr.attr, 1287 &sensor_dev_attr_in7_max.dev_attr.attr, 1288 &sensor_dev_attr_in7_min.dev_attr.attr, 1289 &sensor_dev_attr_in8_input.dev_attr.attr, 1290 &sensor_dev_attr_in8_max.dev_attr.attr, 1291 &sensor_dev_attr_in8_min.dev_attr.attr, 1292 &sensor_dev_attr_in0_alarm.dev_attr.attr, 1293 &sensor_dev_attr_in1_alarm.dev_attr.attr, 1294 &sensor_dev_attr_in2_alarm.dev_attr.attr, 1295 &sensor_dev_attr_in3_alarm.dev_attr.attr, 1296 &sensor_dev_attr_in4_alarm.dev_attr.attr, 1297 &sensor_dev_attr_in5_alarm.dev_attr.attr, 1298 &sensor_dev_attr_in6_alarm.dev_attr.attr, 1299 &sensor_dev_attr_in7_alarm.dev_attr.attr, 1300 &sensor_dev_attr_in8_alarm.dev_attr.attr, 1301 &sensor_dev_attr_temp1_input.dev_attr.attr, 1302 &sensor_dev_attr_temp1_max.dev_attr.attr, 1303 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, 1304 &sensor_dev_attr_temp2_input.dev_attr.attr, 1305 &sensor_dev_attr_temp2_max.dev_attr.attr, 1306 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, 1307 &sensor_dev_attr_temp3_input.dev_attr.attr, 1308 &sensor_dev_attr_temp3_max.dev_attr.attr, 1309 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, 1310 &sensor_dev_attr_temp1_alarm.dev_attr.attr, 1311 &sensor_dev_attr_temp2_alarm.dev_attr.attr, 1312 &sensor_dev_attr_temp3_alarm.dev_attr.attr, 1313 &sensor_dev_attr_pwm1.dev_attr.attr, 1314 &sensor_dev_attr_pwm1_mode.dev_attr.attr, 1315 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 1316 &sensor_dev_attr_pwm2.dev_attr.attr, 1317 &sensor_dev_attr_pwm2_mode.dev_attr.attr, 1318 &sensor_dev_attr_pwm2_enable.dev_attr.attr, 1319 &sensor_dev_attr_pwm3.dev_attr.attr, 1320 &sensor_dev_attr_pwm3_mode.dev_attr.attr, 1321 &sensor_dev_attr_pwm3_enable.dev_attr.attr, 1322 &dev_attr_alarms.attr, 1323 &dev_attr_chassis.attr, 1324 &dev_attr_chassis_clear.attr, 1325 &dev_attr_intrusion0_alarm.attr, 1326 &sensor_dev_attr_tolerance1.dev_attr.attr, 1327 &sensor_dev_attr_thermal_cruise1.dev_attr.attr, 1328 &sensor_dev_attr_tolerance2.dev_attr.attr, 1329 &sensor_dev_attr_thermal_cruise2.dev_attr.attr, 1330 &sensor_dev_attr_tolerance3.dev_attr.attr, 1331 &sensor_dev_attr_thermal_cruise3.dev_attr.attr, 1332 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr, 1333 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr, 1334 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr, 1335 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr, 1336 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr, 1337 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr, 1338 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr, 1339 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr, 1340 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr, 1341 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr, 1342 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr, 1343 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr, 1344 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr, 1345 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr, 1346 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr, 1347 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr, 1348 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr, 1349 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr, 1350 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr, 1351 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr, 1352 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr, 1353 &sensor_dev_attr_fan1_input.dev_attr.attr, 1354 &sensor_dev_attr_fan1_min.dev_attr.attr, 1355 &sensor_dev_attr_fan1_div.dev_attr.attr, 1356 &sensor_dev_attr_fan1_alarm.dev_attr.attr, 1357 &sensor_dev_attr_fan2_input.dev_attr.attr, 1358 &sensor_dev_attr_fan2_min.dev_attr.attr, 1359 &sensor_dev_attr_fan2_div.dev_attr.attr, 1360 &sensor_dev_attr_fan2_alarm.dev_attr.attr, 1361 &sensor_dev_attr_fan3_input.dev_attr.attr, 1362 &sensor_dev_attr_fan3_min.dev_attr.attr, 1363 &sensor_dev_attr_fan3_div.dev_attr.attr, 1364 &sensor_dev_attr_fan3_alarm.dev_attr.attr, 1365 NULL 1366 }; 1367 1368 static const struct attribute_group w83792d_group = { 1369 .attrs = w83792d_attributes, 1370 }; 1371 1372 /* Return 0 if detection is successful, -ENODEV otherwise */ 1373 static int 1374 w83792d_detect(struct i2c_client *client, struct i2c_board_info *info) 1375 { 1376 struct i2c_adapter *adapter = client->adapter; 1377 int val1, val2; 1378 unsigned short address = client->addr; 1379 1380 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 1381 return -ENODEV; 1382 1383 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) 1384 return -ENODEV; 1385 1386 val1 = w83792d_read_value(client, W83792D_REG_BANK); 1387 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1388 /* Check for Winbond ID if in bank 0 */ 1389 if (!(val1 & 0x07)) { /* is Bank0 */ 1390 if ((!(val1 & 0x80) && val2 != 0xa3) || 1391 ((val1 & 0x80) && val2 != 0x5c)) 1392 return -ENODEV; 1393 } 1394 /* 1395 * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR 1396 * should match 1397 */ 1398 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address) 1399 return -ENODEV; 1400 1401 /* Put it now into bank 0 and Vendor ID High Byte */ 1402 w83792d_write_value(client, 1403 W83792D_REG_BANK, 1404 (w83792d_read_value(client, 1405 W83792D_REG_BANK) & 0x78) | 0x80); 1406 1407 /* Determine the chip type. */ 1408 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID); 1409 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1410 if (val1 != 0x7a || val2 != 0x5c) 1411 return -ENODEV; 1412 1413 strlcpy(info->type, "w83792d", I2C_NAME_SIZE); 1414 1415 return 0; 1416 } 1417 1418 static int 1419 w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id) 1420 { 1421 struct w83792d_data *data; 1422 struct device *dev = &client->dev; 1423 int i, val1, err; 1424 1425 data = devm_kzalloc(dev, sizeof(struct w83792d_data), GFP_KERNEL); 1426 if (!data) 1427 return -ENOMEM; 1428 1429 i2c_set_clientdata(client, data); 1430 data->valid = 0; 1431 mutex_init(&data->update_lock); 1432 1433 err = w83792d_detect_subclients(client); 1434 if (err) 1435 return err; 1436 1437 /* Initialize the chip */ 1438 w83792d_init_client(client); 1439 1440 /* A few vars need to be filled upon startup */ 1441 for (i = 0; i < 7; i++) { 1442 data->fan_min[i] = w83792d_read_value(client, 1443 W83792D_REG_FAN_MIN[i]); 1444 } 1445 1446 /* Register sysfs hooks */ 1447 err = sysfs_create_group(&dev->kobj, &w83792d_group); 1448 if (err) 1449 goto exit_i2c_unregister; 1450 1451 /* 1452 * Read GPIO enable register to check if pins for fan 4,5 are used as 1453 * GPIO 1454 */ 1455 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN); 1456 1457 if (!(val1 & 0x40)) { 1458 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]); 1459 if (err) 1460 goto exit_remove_files; 1461 } 1462 1463 if (!(val1 & 0x20)) { 1464 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]); 1465 if (err) 1466 goto exit_remove_files; 1467 } 1468 1469 val1 = w83792d_read_value(client, W83792D_REG_PIN); 1470 if (val1 & 0x40) { 1471 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]); 1472 if (err) 1473 goto exit_remove_files; 1474 } 1475 1476 if (val1 & 0x04) { 1477 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]); 1478 if (err) 1479 goto exit_remove_files; 1480 } 1481 1482 data->hwmon_dev = hwmon_device_register(dev); 1483 if (IS_ERR(data->hwmon_dev)) { 1484 err = PTR_ERR(data->hwmon_dev); 1485 goto exit_remove_files; 1486 } 1487 1488 return 0; 1489 1490 exit_remove_files: 1491 sysfs_remove_group(&dev->kobj, &w83792d_group); 1492 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1493 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]); 1494 exit_i2c_unregister: 1495 if (data->lm75[0] != NULL) 1496 i2c_unregister_device(data->lm75[0]); 1497 if (data->lm75[1] != NULL) 1498 i2c_unregister_device(data->lm75[1]); 1499 return err; 1500 } 1501 1502 static int 1503 w83792d_remove(struct i2c_client *client) 1504 { 1505 struct w83792d_data *data = i2c_get_clientdata(client); 1506 int i; 1507 1508 hwmon_device_unregister(data->hwmon_dev); 1509 sysfs_remove_group(&client->dev.kobj, &w83792d_group); 1510 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1511 sysfs_remove_group(&client->dev.kobj, 1512 &w83792d_group_fan[i]); 1513 1514 if (data->lm75[0] != NULL) 1515 i2c_unregister_device(data->lm75[0]); 1516 if (data->lm75[1] != NULL) 1517 i2c_unregister_device(data->lm75[1]); 1518 1519 return 0; 1520 } 1521 1522 static void 1523 w83792d_init_client(struct i2c_client *client) 1524 { 1525 u8 temp2_cfg, temp3_cfg, vid_in_b; 1526 1527 if (init) 1528 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80); 1529 1530 /* 1531 * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0): 1532 * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of 1533 * vin0/vin1 can be modified by user; 1534 * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of 1535 * vin0/vin1 auto-updated, can NOT be modified by user. 1536 */ 1537 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B); 1538 w83792d_write_value(client, W83792D_REG_VID_IN_B, 1539 vid_in_b & 0xbf); 1540 1541 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG); 1542 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG); 1543 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG, 1544 temp2_cfg & 0xe6); 1545 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG, 1546 temp3_cfg & 0xe6); 1547 1548 /* Start monitoring */ 1549 w83792d_write_value(client, W83792D_REG_CONFIG, 1550 (w83792d_read_value(client, 1551 W83792D_REG_CONFIG) & 0xf7) 1552 | 0x01); 1553 } 1554 1555 static struct w83792d_data *w83792d_update_device(struct device *dev) 1556 { 1557 struct i2c_client *client = to_i2c_client(dev); 1558 struct w83792d_data *data = i2c_get_clientdata(client); 1559 int i, j; 1560 u8 reg_array_tmp[4], reg_tmp; 1561 1562 mutex_lock(&data->update_lock); 1563 1564 if (time_after 1565 (jiffies - data->last_updated, (unsigned long) (HZ * 3)) 1566 || time_before(jiffies, data->last_updated) || !data->valid) { 1567 dev_dbg(dev, "Starting device update\n"); 1568 1569 /* Update the voltages measured value and limits */ 1570 for (i = 0; i < 9; i++) { 1571 data->in[i] = w83792d_read_value(client, 1572 W83792D_REG_IN[i]); 1573 data->in_max[i] = w83792d_read_value(client, 1574 W83792D_REG_IN_MAX[i]); 1575 data->in_min[i] = w83792d_read_value(client, 1576 W83792D_REG_IN_MIN[i]); 1577 } 1578 data->low_bits = w83792d_read_value(client, 1579 W83792D_REG_LOW_BITS1) + 1580 (w83792d_read_value(client, 1581 W83792D_REG_LOW_BITS2) << 8); 1582 for (i = 0; i < 7; i++) { 1583 /* Update the Fan measured value and limits */ 1584 data->fan[i] = w83792d_read_value(client, 1585 W83792D_REG_FAN[i]); 1586 data->fan_min[i] = w83792d_read_value(client, 1587 W83792D_REG_FAN_MIN[i]); 1588 /* Update the PWM/DC Value and PWM/DC flag */ 1589 data->pwm[i] = w83792d_read_value(client, 1590 W83792D_REG_PWM[i]); 1591 } 1592 1593 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG); 1594 data->pwmenable[0] = reg_tmp & 0x03; 1595 data->pwmenable[1] = (reg_tmp>>2) & 0x03; 1596 data->pwmenable[2] = (reg_tmp>>4) & 0x03; 1597 1598 for (i = 0; i < 3; i++) { 1599 data->temp1[i] = w83792d_read_value(client, 1600 W83792D_REG_TEMP1[i]); 1601 } 1602 for (i = 0; i < 2; i++) { 1603 for (j = 0; j < 6; j++) { 1604 data->temp_add[i][j] = w83792d_read_value( 1605 client, W83792D_REG_TEMP_ADD[i][j]); 1606 } 1607 } 1608 1609 /* Update the Fan Divisor */ 1610 for (i = 0; i < 4; i++) { 1611 reg_array_tmp[i] = w83792d_read_value(client, 1612 W83792D_REG_FAN_DIV[i]); 1613 } 1614 data->fan_div[0] = reg_array_tmp[0] & 0x07; 1615 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07; 1616 data->fan_div[2] = reg_array_tmp[1] & 0x07; 1617 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07; 1618 data->fan_div[4] = reg_array_tmp[2] & 0x07; 1619 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07; 1620 data->fan_div[6] = reg_array_tmp[3] & 0x07; 1621 1622 /* Update the realtime status */ 1623 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) + 1624 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) + 1625 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16); 1626 1627 /* Update CaseOpen status and it's CLR_CHS. */ 1628 data->chassis = (w83792d_read_value(client, 1629 W83792D_REG_CHASSIS) >> 5) & 0x01; 1630 data->chassis_clear = (w83792d_read_value(client, 1631 W83792D_REG_CHASSIS_CLR) >> 7) & 0x01; 1632 1633 /* Update Thermal Cruise/Smart Fan I target value */ 1634 for (i = 0; i < 3; i++) { 1635 data->thermal_cruise[i] = 1636 w83792d_read_value(client, 1637 W83792D_REG_THERMAL[i]) & 0x7f; 1638 } 1639 1640 /* Update Smart Fan I/II tolerance */ 1641 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]); 1642 data->tolerance[0] = reg_tmp & 0x0f; 1643 data->tolerance[1] = (reg_tmp >> 4) & 0x0f; 1644 data->tolerance[2] = w83792d_read_value(client, 1645 W83792D_REG_TOLERANCE[2]) & 0x0f; 1646 1647 /* Update Smart Fan II temperature points */ 1648 for (i = 0; i < 3; i++) { 1649 for (j = 0; j < 4; j++) { 1650 data->sf2_points[i][j] 1651 = w83792d_read_value(client, 1652 W83792D_REG_POINTS[i][j]) & 0x7f; 1653 } 1654 } 1655 1656 /* Update Smart Fan II duty cycle levels */ 1657 for (i = 0; i < 3; i++) { 1658 reg_tmp = w83792d_read_value(client, 1659 W83792D_REG_LEVELS[i][0]); 1660 data->sf2_levels[i][0] = reg_tmp & 0x0f; 1661 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f; 1662 reg_tmp = w83792d_read_value(client, 1663 W83792D_REG_LEVELS[i][2]); 1664 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f; 1665 data->sf2_levels[i][3] = reg_tmp & 0x0f; 1666 } 1667 1668 data->last_updated = jiffies; 1669 data->valid = 1; 1670 } 1671 1672 mutex_unlock(&data->update_lock); 1673 1674 #ifdef DEBUG 1675 w83792d_print_debug(data, dev); 1676 #endif 1677 1678 return data; 1679 } 1680 1681 #ifdef DEBUG 1682 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev) 1683 { 1684 int i = 0, j = 0; 1685 dev_dbg(dev, "==========The following is the debug message...========\n"); 1686 dev_dbg(dev, "9 set of Voltages: =====>\n"); 1687 for (i = 0; i < 9; i++) { 1688 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]); 1689 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]); 1690 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]); 1691 } 1692 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff); 1693 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8); 1694 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n"); 1695 for (i = 0; i < 7; i++) { 1696 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]); 1697 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]); 1698 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]); 1699 } 1700 dev_dbg(dev, "3 set of Temperatures: =====>\n"); 1701 for (i = 0; i < 3; i++) 1702 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]); 1703 1704 for (i = 0; i < 2; i++) { 1705 for (j = 0; j < 6; j++) { 1706 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j, 1707 data->temp_add[i][j]); 1708 } 1709 } 1710 1711 for (i = 0; i < 7; i++) 1712 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]); 1713 1714 dev_dbg(dev, "==========End of the debug message...================\n"); 1715 dev_dbg(dev, "\n"); 1716 } 1717 #endif 1718 1719 module_i2c_driver(w83792d_driver); 1720 1721 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>"); 1722 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6"); 1723 MODULE_LICENSE("GPL"); 1724