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 #include <linux/jiffies.h> 48 49 /* Addresses to scan */ 50 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, 51 I2C_CLIENT_END }; 52 53 /* Insmod parameters */ 54 55 static unsigned short force_subclients[4]; 56 module_param_array(force_subclients, short, NULL, 0); 57 MODULE_PARM_DESC(force_subclients, "List of subclient addresses: " 58 "{bus, clientaddr, subclientaddr1, subclientaddr2}"); 59 60 static bool init; 61 module_param(init, bool, 0); 62 MODULE_PARM_DESC(init, "Set to one to force chip initialization"); 63 64 /* The W83792D registers */ 65 static const u8 W83792D_REG_IN[9] = { 66 0x20, /* Vcore A in DataSheet */ 67 0x21, /* Vcore B in DataSheet */ 68 0x22, /* VIN0 in DataSheet */ 69 0x23, /* VIN1 in DataSheet */ 70 0x24, /* VIN2 in DataSheet */ 71 0x25, /* VIN3 in DataSheet */ 72 0x26, /* 5VCC in DataSheet */ 73 0xB0, /* 5VSB in DataSheet */ 74 0xB1 /* VBAT in DataSheet */ 75 }; 76 #define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */ 77 #define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */ 78 static const u8 W83792D_REG_IN_MAX[9] = { 79 0x2B, /* Vcore A High Limit in DataSheet */ 80 0x2D, /* Vcore B High Limit in DataSheet */ 81 0x2F, /* VIN0 High Limit in DataSheet */ 82 0x31, /* VIN1 High Limit in DataSheet */ 83 0x33, /* VIN2 High Limit in DataSheet */ 84 0x35, /* VIN3 High Limit in DataSheet */ 85 0x37, /* 5VCC High Limit in DataSheet */ 86 0xB4, /* 5VSB High Limit in DataSheet */ 87 0xB6 /* VBAT High Limit in DataSheet */ 88 }; 89 static const u8 W83792D_REG_IN_MIN[9] = { 90 0x2C, /* Vcore A Low Limit in DataSheet */ 91 0x2E, /* Vcore B Low Limit in DataSheet */ 92 0x30, /* VIN0 Low Limit in DataSheet */ 93 0x32, /* VIN1 Low Limit in DataSheet */ 94 0x34, /* VIN2 Low Limit in DataSheet */ 95 0x36, /* VIN3 Low Limit in DataSheet */ 96 0x38, /* 5VCC Low Limit in DataSheet */ 97 0xB5, /* 5VSB Low Limit in DataSheet */ 98 0xB7 /* VBAT Low Limit in DataSheet */ 99 }; 100 static const u8 W83792D_REG_FAN[7] = { 101 0x28, /* FAN 1 Count in DataSheet */ 102 0x29, /* FAN 2 Count in DataSheet */ 103 0x2A, /* FAN 3 Count in DataSheet */ 104 0xB8, /* FAN 4 Count in DataSheet */ 105 0xB9, /* FAN 5 Count in DataSheet */ 106 0xBA, /* FAN 6 Count in DataSheet */ 107 0xBE /* FAN 7 Count in DataSheet */ 108 }; 109 static const u8 W83792D_REG_FAN_MIN[7] = { 110 0x3B, /* FAN 1 Count Low Limit in DataSheet */ 111 0x3C, /* FAN 2 Count Low Limit in DataSheet */ 112 0x3D, /* FAN 3 Count Low Limit in DataSheet */ 113 0xBB, /* FAN 4 Count Low Limit in DataSheet */ 114 0xBC, /* FAN 5 Count Low Limit in DataSheet */ 115 0xBD, /* FAN 6 Count Low Limit in DataSheet */ 116 0xBF /* FAN 7 Count Low Limit in DataSheet */ 117 }; 118 #define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */ 119 static const u8 W83792D_REG_FAN_DIV[4] = { 120 0x47, /* contains FAN2 and FAN1 Divisor */ 121 0x5B, /* contains FAN4 and FAN3 Divisor */ 122 0x5C, /* contains FAN6 and FAN5 Divisor */ 123 0x9E /* contains FAN7 Divisor. */ 124 }; 125 static const u8 W83792D_REG_PWM[7] = { 126 0x81, /* FAN 1 Duty Cycle, be used to control */ 127 0x83, /* FAN 2 Duty Cycle, be used to control */ 128 0x94, /* FAN 3 Duty Cycle, be used to control */ 129 0xA3, /* FAN 4 Duty Cycle, be used to control */ 130 0xA4, /* FAN 5 Duty Cycle, be used to control */ 131 0xA5, /* FAN 6 Duty Cycle, be used to control */ 132 0xA6 /* FAN 7 Duty Cycle, be used to control */ 133 }; 134 #define W83792D_REG_BANK 0x4E 135 #define W83792D_REG_TEMP2_CONFIG 0xC2 136 #define W83792D_REG_TEMP3_CONFIG 0xCA 137 138 static const u8 W83792D_REG_TEMP1[3] = { 139 0x27, /* TEMP 1 in DataSheet */ 140 0x39, /* TEMP 1 Over in DataSheet */ 141 0x3A, /* TEMP 1 Hyst in DataSheet */ 142 }; 143 144 static const u8 W83792D_REG_TEMP_ADD[2][6] = { 145 { 0xC0, /* TEMP 2 in DataSheet */ 146 0xC1, /* TEMP 2(0.5 deg) in DataSheet */ 147 0xC5, /* TEMP 2 Over High part in DataSheet */ 148 0xC6, /* TEMP 2 Over Low part in DataSheet */ 149 0xC3, /* TEMP 2 Thyst High part in DataSheet */ 150 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */ 151 { 0xC8, /* TEMP 3 in DataSheet */ 152 0xC9, /* TEMP 3(0.5 deg) in DataSheet */ 153 0xCD, /* TEMP 3 Over High part in DataSheet */ 154 0xCE, /* TEMP 3 Over Low part in DataSheet */ 155 0xCB, /* TEMP 3 Thyst High part in DataSheet */ 156 0xCC } /* TEMP 3 Thyst Low part in DataSheet */ 157 }; 158 159 static const u8 W83792D_REG_THERMAL[3] = { 160 0x85, /* SmartFanI: Fan1 target value */ 161 0x86, /* SmartFanI: Fan2 target value */ 162 0x96 /* SmartFanI: Fan3 target value */ 163 }; 164 165 static const u8 W83792D_REG_TOLERANCE[3] = { 166 0x87, /* (bit3-0)SmartFan Fan1 tolerance */ 167 0x87, /* (bit7-4)SmartFan Fan2 tolerance */ 168 0x97 /* (bit3-0)SmartFan Fan3 tolerance */ 169 }; 170 171 static const u8 W83792D_REG_POINTS[3][4] = { 172 { 0x85, /* SmartFanII: Fan1 temp point 1 */ 173 0xE3, /* SmartFanII: Fan1 temp point 2 */ 174 0xE4, /* SmartFanII: Fan1 temp point 3 */ 175 0xE5 }, /* SmartFanII: Fan1 temp point 4 */ 176 { 0x86, /* SmartFanII: Fan2 temp point 1 */ 177 0xE6, /* SmartFanII: Fan2 temp point 2 */ 178 0xE7, /* SmartFanII: Fan2 temp point 3 */ 179 0xE8 }, /* SmartFanII: Fan2 temp point 4 */ 180 { 0x96, /* SmartFanII: Fan3 temp point 1 */ 181 0xE9, /* SmartFanII: Fan3 temp point 2 */ 182 0xEA, /* SmartFanII: Fan3 temp point 3 */ 183 0xEB } /* SmartFanII: Fan3 temp point 4 */ 184 }; 185 186 static const u8 W83792D_REG_LEVELS[3][4] = { 187 { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */ 188 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */ 189 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */ 190 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */ 191 { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */ 192 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */ 193 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */ 194 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */ 195 { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */ 196 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */ 197 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */ 198 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */ 199 }; 200 201 #define W83792D_REG_GPIO_EN 0x1A 202 #define W83792D_REG_CONFIG 0x40 203 #define W83792D_REG_VID_FANDIV 0x47 204 #define W83792D_REG_CHIPID 0x49 205 #define W83792D_REG_WCHIPID 0x58 206 #define W83792D_REG_CHIPMAN 0x4F 207 #define W83792D_REG_PIN 0x4B 208 #define W83792D_REG_I2C_SUBADDR 0x4A 209 210 #define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */ 211 #define W83792D_REG_ALARM2 0xAA /* realtime status register2 */ 212 #define W83792D_REG_ALARM3 0xAB /* realtime status register3 */ 213 #define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */ 214 #define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */ 215 216 /* control in0/in1 's limit modifiability */ 217 #define W83792D_REG_VID_IN_B 0x17 218 219 #define W83792D_REG_VBAT 0x5D 220 #define W83792D_REG_I2C_ADDR 0x48 221 222 /* 223 * Conversions. Rounding and limit checking is only done on the TO_REG 224 * variants. Note that you should be a bit careful with which arguments 225 * these macros are called: arguments may be evaluated more than once. 226 * Fixing this is just not worth it. 227 */ 228 #define IN_FROM_REG(nr, val) (((nr) <= 1) ? ((val) * 2) : \ 229 ((((nr) == 6) || ((nr) == 7)) ? ((val) * 6) : ((val) * 4))) 230 #define IN_TO_REG(nr, val) (((nr) <= 1) ? ((val) / 2) : \ 231 ((((nr) == 6) || ((nr) == 7)) ? ((val) / 6) : ((val) / 4))) 232 233 static inline u8 234 FAN_TO_REG(long rpm, int div) 235 { 236 if (rpm == 0) 237 return 255; 238 rpm = SENSORS_LIMIT(rpm, 1, 1000000); 239 return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); 240 } 241 242 #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \ 243 ((val) == 255 ? 0 : \ 244 1350000 / ((val) * (div)))) 245 246 /* for temp1 */ 247 #define TEMP1_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \ 248 : (val)) / 1000, 0, 0xff)) 249 #define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000) 250 /* for temp2 and temp3, because they need additional resolution */ 251 #define TEMP_ADD_FROM_REG(val1, val2) \ 252 ((((val1) & 0x80 ? (val1)-0x100 \ 253 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0)) 254 #define TEMP_ADD_TO_REG_HIGH(val) \ 255 (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \ 256 : (val)) / 1000, 0, 0xff)) 257 #define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00) 258 259 #define DIV_FROM_REG(val) (1 << (val)) 260 261 static inline u8 262 DIV_TO_REG(long val) 263 { 264 int i; 265 val = SENSORS_LIMIT(val, 1, 128) >> 1; 266 for (i = 0; i < 7; i++) { 267 if (val == 0) 268 break; 269 val >>= 1; 270 } 271 return (u8)i; 272 } 273 274 struct w83792d_data { 275 struct device *hwmon_dev; 276 277 struct mutex update_lock; 278 char valid; /* !=0 if following fields are valid */ 279 unsigned long last_updated; /* In jiffies */ 280 281 /* array of 2 pointers to subclients */ 282 struct i2c_client *lm75[2]; 283 284 u8 in[9]; /* Register value */ 285 u8 in_max[9]; /* Register value */ 286 u8 in_min[9]; /* Register value */ 287 u16 low_bits; /* Additional resolution to voltage in6-0 */ 288 u8 fan[7]; /* Register value */ 289 u8 fan_min[7]; /* Register value */ 290 u8 temp1[3]; /* current, over, thyst */ 291 u8 temp_add[2][6]; /* Register value */ 292 u8 fan_div[7]; /* Register encoding, shifted right */ 293 u8 pwm[7]; /* 294 * We only consider the first 3 set of pwm, 295 * although 792 chip has 7 set of pwm. 296 */ 297 u8 pwmenable[3]; 298 u32 alarms; /* realtime status register encoding,combined */ 299 u8 chassis; /* Chassis status */ 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_clear(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 store_chassis_clear(struct device *dev, struct device_attribute *attr, 751 const char *buf, size_t count) 752 { 753 struct i2c_client *client = to_i2c_client(dev); 754 struct w83792d_data *data = i2c_get_clientdata(client); 755 unsigned long val; 756 u8 reg; 757 758 if (kstrtoul(buf, 10, &val) || val != 0) 759 return -EINVAL; 760 761 mutex_lock(&data->update_lock); 762 reg = w83792d_read_value(client, W83792D_REG_CHASSIS_CLR); 763 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, reg | 0x80); 764 data->valid = 0; /* Force cache refresh */ 765 mutex_unlock(&data->update_lock); 766 767 return count; 768 } 769 770 /* For Smart Fan I / Thermal Cruise */ 771 static ssize_t 772 show_thermal_cruise(struct device *dev, struct device_attribute *attr, 773 char *buf) 774 { 775 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 776 int nr = sensor_attr->index; 777 struct w83792d_data *data = w83792d_update_device(dev); 778 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]); 779 } 780 781 static ssize_t 782 store_thermal_cruise(struct device *dev, struct device_attribute *attr, 783 const char *buf, size_t count) 784 { 785 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 786 int nr = sensor_attr->index - 1; 787 struct i2c_client *client = to_i2c_client(dev); 788 struct w83792d_data *data = i2c_get_clientdata(client); 789 u8 target_tmp = 0, target_mask = 0; 790 unsigned long val; 791 int err; 792 793 err = kstrtoul(buf, 10, &val); 794 if (err) 795 return err; 796 797 target_tmp = val; 798 target_tmp = target_tmp & 0x7f; 799 mutex_lock(&data->update_lock); 800 target_mask = w83792d_read_value(client, 801 W83792D_REG_THERMAL[nr]) & 0x80; 802 data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255); 803 w83792d_write_value(client, W83792D_REG_THERMAL[nr], 804 (data->thermal_cruise[nr]) | target_mask); 805 mutex_unlock(&data->update_lock); 806 807 return count; 808 } 809 810 /* For Smart Fan I/Thermal Cruise and Smart Fan II */ 811 static ssize_t 812 show_tolerance(struct device *dev, struct device_attribute *attr, 813 char *buf) 814 { 815 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 816 int nr = sensor_attr->index; 817 struct w83792d_data *data = w83792d_update_device(dev); 818 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]); 819 } 820 821 static ssize_t 822 store_tolerance(struct device *dev, struct device_attribute *attr, 823 const char *buf, size_t count) 824 { 825 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 826 int nr = sensor_attr->index - 1; 827 struct i2c_client *client = to_i2c_client(dev); 828 struct w83792d_data *data = i2c_get_clientdata(client); 829 u8 tol_tmp, tol_mask; 830 unsigned long val; 831 int err; 832 833 err = kstrtoul(buf, 10, &val); 834 if (err) 835 return err; 836 837 mutex_lock(&data->update_lock); 838 tol_mask = w83792d_read_value(client, 839 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0); 840 tol_tmp = SENSORS_LIMIT(val, 0, 15); 841 tol_tmp &= 0x0f; 842 data->tolerance[nr] = tol_tmp; 843 if (nr == 1) 844 tol_tmp <<= 4; 845 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr], 846 tol_mask | tol_tmp); 847 mutex_unlock(&data->update_lock); 848 849 return count; 850 } 851 852 /* For Smart Fan II */ 853 static ssize_t 854 show_sf2_point(struct device *dev, struct device_attribute *attr, 855 char *buf) 856 { 857 struct sensor_device_attribute_2 *sensor_attr 858 = to_sensor_dev_attr_2(attr); 859 int nr = sensor_attr->nr; 860 int index = sensor_attr->index; 861 struct w83792d_data *data = w83792d_update_device(dev); 862 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]); 863 } 864 865 static ssize_t 866 store_sf2_point(struct device *dev, struct device_attribute *attr, 867 const char *buf, size_t count) 868 { 869 struct sensor_device_attribute_2 *sensor_attr 870 = to_sensor_dev_attr_2(attr); 871 int nr = sensor_attr->nr - 1; 872 int index = sensor_attr->index - 1; 873 struct i2c_client *client = to_i2c_client(dev); 874 struct w83792d_data *data = i2c_get_clientdata(client); 875 u8 mask_tmp = 0; 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 data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127); 885 mask_tmp = w83792d_read_value(client, 886 W83792D_REG_POINTS[index][nr]) & 0x80; 887 w83792d_write_value(client, W83792D_REG_POINTS[index][nr], 888 mask_tmp|data->sf2_points[index][nr]); 889 mutex_unlock(&data->update_lock); 890 891 return count; 892 } 893 894 static ssize_t 895 show_sf2_level(struct device *dev, struct device_attribute *attr, 896 char *buf) 897 { 898 struct sensor_device_attribute_2 *sensor_attr 899 = to_sensor_dev_attr_2(attr); 900 int nr = sensor_attr->nr; 901 int index = sensor_attr->index; 902 struct w83792d_data *data = w83792d_update_device(dev); 903 return sprintf(buf, "%d\n", 904 (((data->sf2_levels[index-1][nr]) * 100) / 15)); 905 } 906 907 static ssize_t 908 store_sf2_level(struct device *dev, struct device_attribute *attr, 909 const char *buf, size_t count) 910 { 911 struct sensor_device_attribute_2 *sensor_attr 912 = to_sensor_dev_attr_2(attr); 913 int nr = sensor_attr->nr; 914 int index = sensor_attr->index - 1; 915 struct i2c_client *client = to_i2c_client(dev); 916 struct w83792d_data *data = i2c_get_clientdata(client); 917 u8 mask_tmp = 0, level_tmp = 0; 918 unsigned long val; 919 int err; 920 921 err = kstrtoul(buf, 10, &val); 922 if (err) 923 return err; 924 925 mutex_lock(&data->update_lock); 926 data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15); 927 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr]) 928 & ((nr == 3) ? 0xf0 : 0x0f); 929 if (nr == 3) 930 level_tmp = data->sf2_levels[index][nr]; 931 else 932 level_tmp = data->sf2_levels[index][nr] << 4; 933 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], 934 level_tmp | mask_tmp); 935 mutex_unlock(&data->update_lock); 936 937 return count; 938 } 939 940 941 static int 942 w83792d_detect_subclients(struct i2c_client *new_client) 943 { 944 int i, id, err; 945 int address = new_client->addr; 946 u8 val; 947 struct i2c_adapter *adapter = new_client->adapter; 948 struct w83792d_data *data = i2c_get_clientdata(new_client); 949 950 id = i2c_adapter_id(adapter); 951 if (force_subclients[0] == id && force_subclients[1] == address) { 952 for (i = 2; i <= 3; i++) { 953 if (force_subclients[i] < 0x48 || 954 force_subclients[i] > 0x4f) { 955 dev_err(&new_client->dev, "invalid subclient " 956 "address %d; must be 0x48-0x4f\n", 957 force_subclients[i]); 958 err = -ENODEV; 959 goto ERROR_SC_0; 960 } 961 } 962 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR, 963 (force_subclients[2] & 0x07) | 964 ((force_subclients[3] & 0x07) << 4)); 965 } 966 967 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR); 968 if (!(val & 0x08)) 969 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7)); 970 if (!(val & 0x80)) { 971 if ((data->lm75[0] != NULL) && 972 ((val & 0x7) == ((val >> 4) & 0x7))) { 973 dev_err(&new_client->dev, "duplicate addresses 0x%x, " 974 "use force_subclient\n", data->lm75[0]->addr); 975 err = -ENODEV; 976 goto ERROR_SC_1; 977 } 978 data->lm75[1] = i2c_new_dummy(adapter, 979 0x48 + ((val >> 4) & 0x7)); 980 } 981 982 return 0; 983 984 /* Undo inits in case of errors */ 985 986 ERROR_SC_1: 987 if (data->lm75[0] != NULL) 988 i2c_unregister_device(data->lm75[0]); 989 ERROR_SC_0: 990 return err; 991 } 992 993 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); 994 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); 995 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); 996 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); 997 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4); 998 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5); 999 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6); 1000 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7); 1001 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8); 1002 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO, 1003 show_in_min, store_in_min, 0); 1004 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, 1005 show_in_min, store_in_min, 1); 1006 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, 1007 show_in_min, store_in_min, 2); 1008 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO, 1009 show_in_min, store_in_min, 3); 1010 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO, 1011 show_in_min, store_in_min, 4); 1012 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO, 1013 show_in_min, store_in_min, 5); 1014 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO, 1015 show_in_min, store_in_min, 6); 1016 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO, 1017 show_in_min, store_in_min, 7); 1018 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO, 1019 show_in_min, store_in_min, 8); 1020 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO, 1021 show_in_max, store_in_max, 0); 1022 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, 1023 show_in_max, store_in_max, 1); 1024 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, 1025 show_in_max, store_in_max, 2); 1026 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO, 1027 show_in_max, store_in_max, 3); 1028 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO, 1029 show_in_max, store_in_max, 4); 1030 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO, 1031 show_in_max, store_in_max, 5); 1032 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO, 1033 show_in_max, store_in_max, 6); 1034 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO, 1035 show_in_max, store_in_max, 7); 1036 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO, 1037 show_in_max, store_in_max, 8); 1038 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0); 1039 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0); 1040 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0); 1041 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, 1042 show_temp1, store_temp1, 0, 1); 1043 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23, 1044 store_temp23, 0, 2); 1045 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23, 1046 store_temp23, 1, 2); 1047 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, 1048 show_temp1, store_temp1, 0, 2); 1049 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, 1050 show_temp23, store_temp23, 0, 4); 1051 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, 1052 show_temp23, store_temp23, 1, 4); 1053 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); 1054 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); 1055 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); 1056 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2); 1057 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3); 1058 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4); 1059 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5); 1060 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6); 1061 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7); 1062 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8); 1063 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9); 1064 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10); 1065 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11); 1066 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12); 1067 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15); 1068 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19); 1069 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20); 1070 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21); 1071 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22); 1072 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23); 1073 static DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR, 1074 show_chassis_clear, store_chassis_clear); 1075 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0); 1076 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1); 1077 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2); 1078 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, 1079 show_pwmenable, store_pwmenable, 1); 1080 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, 1081 show_pwmenable, store_pwmenable, 2); 1082 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, 1083 show_pwmenable, store_pwmenable, 3); 1084 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, 1085 show_pwm_mode, store_pwm_mode, 0); 1086 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, 1087 show_pwm_mode, store_pwm_mode, 1); 1088 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, 1089 show_pwm_mode, store_pwm_mode, 2); 1090 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO, 1091 show_tolerance, store_tolerance, 1); 1092 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO, 1093 show_tolerance, store_tolerance, 2); 1094 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO, 1095 show_tolerance, store_tolerance, 3); 1096 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO, 1097 show_thermal_cruise, store_thermal_cruise, 1); 1098 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO, 1099 show_thermal_cruise, store_thermal_cruise, 2); 1100 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO, 1101 show_thermal_cruise, store_thermal_cruise, 3); 1102 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR, 1103 show_sf2_point, store_sf2_point, 1, 1); 1104 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR, 1105 show_sf2_point, store_sf2_point, 2, 1); 1106 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR, 1107 show_sf2_point, store_sf2_point, 3, 1); 1108 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR, 1109 show_sf2_point, store_sf2_point, 4, 1); 1110 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR, 1111 show_sf2_point, store_sf2_point, 1, 2); 1112 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR, 1113 show_sf2_point, store_sf2_point, 2, 2); 1114 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR, 1115 show_sf2_point, store_sf2_point, 3, 2); 1116 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR, 1117 show_sf2_point, store_sf2_point, 4, 2); 1118 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR, 1119 show_sf2_point, store_sf2_point, 1, 3); 1120 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR, 1121 show_sf2_point, store_sf2_point, 2, 3); 1122 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR, 1123 show_sf2_point, store_sf2_point, 3, 3); 1124 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR, 1125 show_sf2_point, store_sf2_point, 4, 3); 1126 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR, 1127 show_sf2_level, store_sf2_level, 1, 1); 1128 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR, 1129 show_sf2_level, store_sf2_level, 2, 1); 1130 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR, 1131 show_sf2_level, store_sf2_level, 3, 1); 1132 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR, 1133 show_sf2_level, store_sf2_level, 1, 2); 1134 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR, 1135 show_sf2_level, store_sf2_level, 2, 2); 1136 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR, 1137 show_sf2_level, store_sf2_level, 3, 2); 1138 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR, 1139 show_sf2_level, store_sf2_level, 1, 3); 1140 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR, 1141 show_sf2_level, store_sf2_level, 2, 3); 1142 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR, 1143 show_sf2_level, store_sf2_level, 3, 3); 1144 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1); 1145 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2); 1146 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3); 1147 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4); 1148 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5); 1149 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6); 1150 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7); 1151 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, 1152 show_fan_min, store_fan_min, 1); 1153 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, 1154 show_fan_min, store_fan_min, 2); 1155 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, 1156 show_fan_min, store_fan_min, 3); 1157 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, 1158 show_fan_min, store_fan_min, 4); 1159 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO, 1160 show_fan_min, store_fan_min, 5); 1161 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO, 1162 show_fan_min, store_fan_min, 6); 1163 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO, 1164 show_fan_min, store_fan_min, 7); 1165 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO, 1166 show_fan_div, store_fan_div, 1); 1167 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO, 1168 show_fan_div, store_fan_div, 2); 1169 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO, 1170 show_fan_div, store_fan_div, 3); 1171 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO, 1172 show_fan_div, store_fan_div, 4); 1173 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO, 1174 show_fan_div, store_fan_div, 5); 1175 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO, 1176 show_fan_div, store_fan_div, 6); 1177 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO, 1178 show_fan_div, store_fan_div, 7); 1179 1180 static struct attribute *w83792d_attributes_fan[4][5] = { 1181 { 1182 &sensor_dev_attr_fan4_input.dev_attr.attr, 1183 &sensor_dev_attr_fan4_min.dev_attr.attr, 1184 &sensor_dev_attr_fan4_div.dev_attr.attr, 1185 &sensor_dev_attr_fan4_alarm.dev_attr.attr, 1186 NULL 1187 }, { 1188 &sensor_dev_attr_fan5_input.dev_attr.attr, 1189 &sensor_dev_attr_fan5_min.dev_attr.attr, 1190 &sensor_dev_attr_fan5_div.dev_attr.attr, 1191 &sensor_dev_attr_fan5_alarm.dev_attr.attr, 1192 NULL 1193 }, { 1194 &sensor_dev_attr_fan6_input.dev_attr.attr, 1195 &sensor_dev_attr_fan6_min.dev_attr.attr, 1196 &sensor_dev_attr_fan6_div.dev_attr.attr, 1197 &sensor_dev_attr_fan6_alarm.dev_attr.attr, 1198 NULL 1199 }, { 1200 &sensor_dev_attr_fan7_input.dev_attr.attr, 1201 &sensor_dev_attr_fan7_min.dev_attr.attr, 1202 &sensor_dev_attr_fan7_div.dev_attr.attr, 1203 &sensor_dev_attr_fan7_alarm.dev_attr.attr, 1204 NULL 1205 } 1206 }; 1207 1208 static const struct attribute_group w83792d_group_fan[4] = { 1209 { .attrs = w83792d_attributes_fan[0] }, 1210 { .attrs = w83792d_attributes_fan[1] }, 1211 { .attrs = w83792d_attributes_fan[2] }, 1212 { .attrs = w83792d_attributes_fan[3] }, 1213 }; 1214 1215 static struct attribute *w83792d_attributes[] = { 1216 &sensor_dev_attr_in0_input.dev_attr.attr, 1217 &sensor_dev_attr_in0_max.dev_attr.attr, 1218 &sensor_dev_attr_in0_min.dev_attr.attr, 1219 &sensor_dev_attr_in1_input.dev_attr.attr, 1220 &sensor_dev_attr_in1_max.dev_attr.attr, 1221 &sensor_dev_attr_in1_min.dev_attr.attr, 1222 &sensor_dev_attr_in2_input.dev_attr.attr, 1223 &sensor_dev_attr_in2_max.dev_attr.attr, 1224 &sensor_dev_attr_in2_min.dev_attr.attr, 1225 &sensor_dev_attr_in3_input.dev_attr.attr, 1226 &sensor_dev_attr_in3_max.dev_attr.attr, 1227 &sensor_dev_attr_in3_min.dev_attr.attr, 1228 &sensor_dev_attr_in4_input.dev_attr.attr, 1229 &sensor_dev_attr_in4_max.dev_attr.attr, 1230 &sensor_dev_attr_in4_min.dev_attr.attr, 1231 &sensor_dev_attr_in5_input.dev_attr.attr, 1232 &sensor_dev_attr_in5_max.dev_attr.attr, 1233 &sensor_dev_attr_in5_min.dev_attr.attr, 1234 &sensor_dev_attr_in6_input.dev_attr.attr, 1235 &sensor_dev_attr_in6_max.dev_attr.attr, 1236 &sensor_dev_attr_in6_min.dev_attr.attr, 1237 &sensor_dev_attr_in7_input.dev_attr.attr, 1238 &sensor_dev_attr_in7_max.dev_attr.attr, 1239 &sensor_dev_attr_in7_min.dev_attr.attr, 1240 &sensor_dev_attr_in8_input.dev_attr.attr, 1241 &sensor_dev_attr_in8_max.dev_attr.attr, 1242 &sensor_dev_attr_in8_min.dev_attr.attr, 1243 &sensor_dev_attr_in0_alarm.dev_attr.attr, 1244 &sensor_dev_attr_in1_alarm.dev_attr.attr, 1245 &sensor_dev_attr_in2_alarm.dev_attr.attr, 1246 &sensor_dev_attr_in3_alarm.dev_attr.attr, 1247 &sensor_dev_attr_in4_alarm.dev_attr.attr, 1248 &sensor_dev_attr_in5_alarm.dev_attr.attr, 1249 &sensor_dev_attr_in6_alarm.dev_attr.attr, 1250 &sensor_dev_attr_in7_alarm.dev_attr.attr, 1251 &sensor_dev_attr_in8_alarm.dev_attr.attr, 1252 &sensor_dev_attr_temp1_input.dev_attr.attr, 1253 &sensor_dev_attr_temp1_max.dev_attr.attr, 1254 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, 1255 &sensor_dev_attr_temp2_input.dev_attr.attr, 1256 &sensor_dev_attr_temp2_max.dev_attr.attr, 1257 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, 1258 &sensor_dev_attr_temp3_input.dev_attr.attr, 1259 &sensor_dev_attr_temp3_max.dev_attr.attr, 1260 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, 1261 &sensor_dev_attr_temp1_alarm.dev_attr.attr, 1262 &sensor_dev_attr_temp2_alarm.dev_attr.attr, 1263 &sensor_dev_attr_temp3_alarm.dev_attr.attr, 1264 &sensor_dev_attr_pwm1.dev_attr.attr, 1265 &sensor_dev_attr_pwm1_mode.dev_attr.attr, 1266 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 1267 &sensor_dev_attr_pwm2.dev_attr.attr, 1268 &sensor_dev_attr_pwm2_mode.dev_attr.attr, 1269 &sensor_dev_attr_pwm2_enable.dev_attr.attr, 1270 &sensor_dev_attr_pwm3.dev_attr.attr, 1271 &sensor_dev_attr_pwm3_mode.dev_attr.attr, 1272 &sensor_dev_attr_pwm3_enable.dev_attr.attr, 1273 &dev_attr_alarms.attr, 1274 &dev_attr_intrusion0_alarm.attr, 1275 &sensor_dev_attr_tolerance1.dev_attr.attr, 1276 &sensor_dev_attr_thermal_cruise1.dev_attr.attr, 1277 &sensor_dev_attr_tolerance2.dev_attr.attr, 1278 &sensor_dev_attr_thermal_cruise2.dev_attr.attr, 1279 &sensor_dev_attr_tolerance3.dev_attr.attr, 1280 &sensor_dev_attr_thermal_cruise3.dev_attr.attr, 1281 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr, 1282 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr, 1283 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr, 1284 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr, 1285 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr, 1286 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr, 1287 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr, 1288 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr, 1289 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr, 1290 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr, 1291 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr, 1292 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr, 1293 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr, 1294 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr, 1295 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr, 1296 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr, 1297 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr, 1298 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr, 1299 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr, 1300 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr, 1301 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr, 1302 &sensor_dev_attr_fan1_input.dev_attr.attr, 1303 &sensor_dev_attr_fan1_min.dev_attr.attr, 1304 &sensor_dev_attr_fan1_div.dev_attr.attr, 1305 &sensor_dev_attr_fan1_alarm.dev_attr.attr, 1306 &sensor_dev_attr_fan2_input.dev_attr.attr, 1307 &sensor_dev_attr_fan2_min.dev_attr.attr, 1308 &sensor_dev_attr_fan2_div.dev_attr.attr, 1309 &sensor_dev_attr_fan2_alarm.dev_attr.attr, 1310 &sensor_dev_attr_fan3_input.dev_attr.attr, 1311 &sensor_dev_attr_fan3_min.dev_attr.attr, 1312 &sensor_dev_attr_fan3_div.dev_attr.attr, 1313 &sensor_dev_attr_fan3_alarm.dev_attr.attr, 1314 NULL 1315 }; 1316 1317 static const struct attribute_group w83792d_group = { 1318 .attrs = w83792d_attributes, 1319 }; 1320 1321 /* Return 0 if detection is successful, -ENODEV otherwise */ 1322 static int 1323 w83792d_detect(struct i2c_client *client, struct i2c_board_info *info) 1324 { 1325 struct i2c_adapter *adapter = client->adapter; 1326 int val1, val2; 1327 unsigned short address = client->addr; 1328 1329 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 1330 return -ENODEV; 1331 1332 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) 1333 return -ENODEV; 1334 1335 val1 = w83792d_read_value(client, W83792D_REG_BANK); 1336 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1337 /* Check for Winbond ID if in bank 0 */ 1338 if (!(val1 & 0x07)) { /* is Bank0 */ 1339 if ((!(val1 & 0x80) && val2 != 0xa3) || 1340 ((val1 & 0x80) && val2 != 0x5c)) 1341 return -ENODEV; 1342 } 1343 /* 1344 * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR 1345 * should match 1346 */ 1347 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address) 1348 return -ENODEV; 1349 1350 /* Put it now into bank 0 and Vendor ID High Byte */ 1351 w83792d_write_value(client, 1352 W83792D_REG_BANK, 1353 (w83792d_read_value(client, 1354 W83792D_REG_BANK) & 0x78) | 0x80); 1355 1356 /* Determine the chip type. */ 1357 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID); 1358 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1359 if (val1 != 0x7a || val2 != 0x5c) 1360 return -ENODEV; 1361 1362 strlcpy(info->type, "w83792d", I2C_NAME_SIZE); 1363 1364 return 0; 1365 } 1366 1367 static int 1368 w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id) 1369 { 1370 struct w83792d_data *data; 1371 struct device *dev = &client->dev; 1372 int i, val1, err; 1373 1374 data = devm_kzalloc(dev, sizeof(struct w83792d_data), GFP_KERNEL); 1375 if (!data) 1376 return -ENOMEM; 1377 1378 i2c_set_clientdata(client, data); 1379 data->valid = 0; 1380 mutex_init(&data->update_lock); 1381 1382 err = w83792d_detect_subclients(client); 1383 if (err) 1384 return err; 1385 1386 /* Initialize the chip */ 1387 w83792d_init_client(client); 1388 1389 /* A few vars need to be filled upon startup */ 1390 for (i = 0; i < 7; i++) { 1391 data->fan_min[i] = w83792d_read_value(client, 1392 W83792D_REG_FAN_MIN[i]); 1393 } 1394 1395 /* Register sysfs hooks */ 1396 err = sysfs_create_group(&dev->kobj, &w83792d_group); 1397 if (err) 1398 goto exit_i2c_unregister; 1399 1400 /* 1401 * Read GPIO enable register to check if pins for fan 4,5 are used as 1402 * GPIO 1403 */ 1404 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN); 1405 1406 if (!(val1 & 0x40)) { 1407 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]); 1408 if (err) 1409 goto exit_remove_files; 1410 } 1411 1412 if (!(val1 & 0x20)) { 1413 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]); 1414 if (err) 1415 goto exit_remove_files; 1416 } 1417 1418 val1 = w83792d_read_value(client, W83792D_REG_PIN); 1419 if (val1 & 0x40) { 1420 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]); 1421 if (err) 1422 goto exit_remove_files; 1423 } 1424 1425 if (val1 & 0x04) { 1426 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]); 1427 if (err) 1428 goto exit_remove_files; 1429 } 1430 1431 data->hwmon_dev = hwmon_device_register(dev); 1432 if (IS_ERR(data->hwmon_dev)) { 1433 err = PTR_ERR(data->hwmon_dev); 1434 goto exit_remove_files; 1435 } 1436 1437 return 0; 1438 1439 exit_remove_files: 1440 sysfs_remove_group(&dev->kobj, &w83792d_group); 1441 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1442 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]); 1443 exit_i2c_unregister: 1444 if (data->lm75[0] != NULL) 1445 i2c_unregister_device(data->lm75[0]); 1446 if (data->lm75[1] != NULL) 1447 i2c_unregister_device(data->lm75[1]); 1448 return err; 1449 } 1450 1451 static int 1452 w83792d_remove(struct i2c_client *client) 1453 { 1454 struct w83792d_data *data = i2c_get_clientdata(client); 1455 int i; 1456 1457 hwmon_device_unregister(data->hwmon_dev); 1458 sysfs_remove_group(&client->dev.kobj, &w83792d_group); 1459 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1460 sysfs_remove_group(&client->dev.kobj, 1461 &w83792d_group_fan[i]); 1462 1463 if (data->lm75[0] != NULL) 1464 i2c_unregister_device(data->lm75[0]); 1465 if (data->lm75[1] != NULL) 1466 i2c_unregister_device(data->lm75[1]); 1467 1468 return 0; 1469 } 1470 1471 static void 1472 w83792d_init_client(struct i2c_client *client) 1473 { 1474 u8 temp2_cfg, temp3_cfg, vid_in_b; 1475 1476 if (init) 1477 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80); 1478 1479 /* 1480 * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0): 1481 * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of 1482 * vin0/vin1 can be modified by user; 1483 * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of 1484 * vin0/vin1 auto-updated, can NOT be modified by user. 1485 */ 1486 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B); 1487 w83792d_write_value(client, W83792D_REG_VID_IN_B, 1488 vid_in_b & 0xbf); 1489 1490 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG); 1491 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG); 1492 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG, 1493 temp2_cfg & 0xe6); 1494 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG, 1495 temp3_cfg & 0xe6); 1496 1497 /* Start monitoring */ 1498 w83792d_write_value(client, W83792D_REG_CONFIG, 1499 (w83792d_read_value(client, 1500 W83792D_REG_CONFIG) & 0xf7) 1501 | 0x01); 1502 } 1503 1504 static struct w83792d_data *w83792d_update_device(struct device *dev) 1505 { 1506 struct i2c_client *client = to_i2c_client(dev); 1507 struct w83792d_data *data = i2c_get_clientdata(client); 1508 int i, j; 1509 u8 reg_array_tmp[4], reg_tmp; 1510 1511 mutex_lock(&data->update_lock); 1512 1513 if (time_after 1514 (jiffies - data->last_updated, (unsigned long) (HZ * 3)) 1515 || time_before(jiffies, data->last_updated) || !data->valid) { 1516 dev_dbg(dev, "Starting device update\n"); 1517 1518 /* Update the voltages measured value and limits */ 1519 for (i = 0; i < 9; i++) { 1520 data->in[i] = w83792d_read_value(client, 1521 W83792D_REG_IN[i]); 1522 data->in_max[i] = w83792d_read_value(client, 1523 W83792D_REG_IN_MAX[i]); 1524 data->in_min[i] = w83792d_read_value(client, 1525 W83792D_REG_IN_MIN[i]); 1526 } 1527 data->low_bits = w83792d_read_value(client, 1528 W83792D_REG_LOW_BITS1) + 1529 (w83792d_read_value(client, 1530 W83792D_REG_LOW_BITS2) << 8); 1531 for (i = 0; i < 7; i++) { 1532 /* Update the Fan measured value and limits */ 1533 data->fan[i] = w83792d_read_value(client, 1534 W83792D_REG_FAN[i]); 1535 data->fan_min[i] = w83792d_read_value(client, 1536 W83792D_REG_FAN_MIN[i]); 1537 /* Update the PWM/DC Value and PWM/DC flag */ 1538 data->pwm[i] = w83792d_read_value(client, 1539 W83792D_REG_PWM[i]); 1540 } 1541 1542 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG); 1543 data->pwmenable[0] = reg_tmp & 0x03; 1544 data->pwmenable[1] = (reg_tmp>>2) & 0x03; 1545 data->pwmenable[2] = (reg_tmp>>4) & 0x03; 1546 1547 for (i = 0; i < 3; i++) { 1548 data->temp1[i] = w83792d_read_value(client, 1549 W83792D_REG_TEMP1[i]); 1550 } 1551 for (i = 0; i < 2; i++) { 1552 for (j = 0; j < 6; j++) { 1553 data->temp_add[i][j] = w83792d_read_value( 1554 client, W83792D_REG_TEMP_ADD[i][j]); 1555 } 1556 } 1557 1558 /* Update the Fan Divisor */ 1559 for (i = 0; i < 4; i++) { 1560 reg_array_tmp[i] = w83792d_read_value(client, 1561 W83792D_REG_FAN_DIV[i]); 1562 } 1563 data->fan_div[0] = reg_array_tmp[0] & 0x07; 1564 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07; 1565 data->fan_div[2] = reg_array_tmp[1] & 0x07; 1566 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07; 1567 data->fan_div[4] = reg_array_tmp[2] & 0x07; 1568 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07; 1569 data->fan_div[6] = reg_array_tmp[3] & 0x07; 1570 1571 /* Update the realtime status */ 1572 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) + 1573 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) + 1574 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16); 1575 1576 /* Update CaseOpen status and it's CLR_CHS. */ 1577 data->chassis = (w83792d_read_value(client, 1578 W83792D_REG_CHASSIS) >> 5) & 0x01; 1579 1580 /* Update Thermal Cruise/Smart Fan I target value */ 1581 for (i = 0; i < 3; i++) { 1582 data->thermal_cruise[i] = 1583 w83792d_read_value(client, 1584 W83792D_REG_THERMAL[i]) & 0x7f; 1585 } 1586 1587 /* Update Smart Fan I/II tolerance */ 1588 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]); 1589 data->tolerance[0] = reg_tmp & 0x0f; 1590 data->tolerance[1] = (reg_tmp >> 4) & 0x0f; 1591 data->tolerance[2] = w83792d_read_value(client, 1592 W83792D_REG_TOLERANCE[2]) & 0x0f; 1593 1594 /* Update Smart Fan II temperature points */ 1595 for (i = 0; i < 3; i++) { 1596 for (j = 0; j < 4; j++) { 1597 data->sf2_points[i][j] 1598 = w83792d_read_value(client, 1599 W83792D_REG_POINTS[i][j]) & 0x7f; 1600 } 1601 } 1602 1603 /* Update Smart Fan II duty cycle levels */ 1604 for (i = 0; i < 3; i++) { 1605 reg_tmp = w83792d_read_value(client, 1606 W83792D_REG_LEVELS[i][0]); 1607 data->sf2_levels[i][0] = reg_tmp & 0x0f; 1608 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f; 1609 reg_tmp = w83792d_read_value(client, 1610 W83792D_REG_LEVELS[i][2]); 1611 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f; 1612 data->sf2_levels[i][3] = reg_tmp & 0x0f; 1613 } 1614 1615 data->last_updated = jiffies; 1616 data->valid = 1; 1617 } 1618 1619 mutex_unlock(&data->update_lock); 1620 1621 #ifdef DEBUG 1622 w83792d_print_debug(data, dev); 1623 #endif 1624 1625 return data; 1626 } 1627 1628 #ifdef DEBUG 1629 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev) 1630 { 1631 int i = 0, j = 0; 1632 dev_dbg(dev, "==========The following is the debug message...========\n"); 1633 dev_dbg(dev, "9 set of Voltages: =====>\n"); 1634 for (i = 0; i < 9; i++) { 1635 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]); 1636 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]); 1637 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]); 1638 } 1639 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff); 1640 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8); 1641 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n"); 1642 for (i = 0; i < 7; i++) { 1643 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]); 1644 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]); 1645 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]); 1646 } 1647 dev_dbg(dev, "3 set of Temperatures: =====>\n"); 1648 for (i = 0; i < 3; i++) 1649 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]); 1650 1651 for (i = 0; i < 2; i++) { 1652 for (j = 0; j < 6; j++) { 1653 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j, 1654 data->temp_add[i][j]); 1655 } 1656 } 1657 1658 for (i = 0; i < 7; i++) 1659 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]); 1660 1661 dev_dbg(dev, "==========End of the debug message...================\n"); 1662 dev_dbg(dev, "\n"); 1663 } 1664 #endif 1665 1666 module_i2c_driver(w83792d_driver); 1667 1668 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>"); 1669 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6"); 1670 MODULE_LICENSE("GPL"); 1671