1 /* 2 * w83792d.c - Part of lm_sensors, Linux kernel modules for hardware 3 * monitoring 4 * Copyright (C) 2004, 2005 Winbond Electronics Corp. 5 * Shane Huang, 6 * Rudolf Marek <r.marek@assembler.cz> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 21 * 22 * Note: 23 * 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver. 24 * 2. This driver is only for Winbond W83792D C version device, there 25 * are also some motherboards with B version W83792D device. The 26 * calculation method to in6-in7(measured value, limits) is a little 27 * different between C and B version. C or B version can be identified 28 * by CR[0x49h]. 29 */ 30 31 /* 32 * Supports following chips: 33 * 34 * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA 35 * w83792d 9 7 7 3 0x7a 0x5ca3 yes no 36 */ 37 38 #include <linux/module.h> 39 #include <linux/init.h> 40 #include <linux/slab.h> 41 #include <linux/i2c.h> 42 #include <linux/hwmon.h> 43 #include <linux/hwmon-sysfs.h> 44 #include <linux/err.h> 45 #include <linux/mutex.h> 46 #include <linux/sysfs.h> 47 #include <linux/jiffies.h> 48 49 /* Addresses to scan */ 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, 58 "List of subclient addresses: {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 = clamp_val(rpm, 1, 1000000); 239 return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254); 240 } 241 242 #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \ 243 ((val) == 255 ? 0 : \ 244 1350000 / ((val) * (div)))) 245 246 /* for temp1 */ 247 #define TEMP1_TO_REG(val) (clamp_val(((val) < 0 ? (val) + 0x100 * 1000 \ 248 : (val)) / 1000, 0, 0xff)) 249 #define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000) 250 /* for temp2 and temp3, because they need additional resolution */ 251 #define TEMP_ADD_FROM_REG(val1, val2) \ 252 ((((val1) & 0x80 ? (val1)-0x100 \ 253 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0)) 254 #define TEMP_ADD_TO_REG_HIGH(val) \ 255 (clamp_val(((val) < 0 ? (val) + 0x100 * 1000 : (val)) / 1000, 0, 0xff)) 256 #define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00) 257 258 #define DIV_FROM_REG(val) (1 << (val)) 259 260 static inline u8 261 DIV_TO_REG(long val) 262 { 263 int i; 264 val = clamp_val(val, 1, 128) >> 1; 265 for (i = 0; i < 7; i++) { 266 if (val == 0) 267 break; 268 val >>= 1; 269 } 270 return (u8)i; 271 } 272 273 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]; /* The 7 PWM outputs */ 293 u8 pwmenable[3]; 294 u32 alarms; /* realtime status register encoding,combined */ 295 u8 chassis; /* Chassis status */ 296 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */ 297 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */ 298 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */ 299 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */ 300 }; 301 302 static int w83792d_probe(struct i2c_client *client, 303 const struct i2c_device_id *id); 304 static int w83792d_detect(struct i2c_client *client, 305 struct i2c_board_info *info); 306 static int w83792d_remove(struct i2c_client *client); 307 static struct w83792d_data *w83792d_update_device(struct device *dev); 308 309 #ifdef DEBUG 310 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev); 311 #endif 312 313 static void w83792d_init_client(struct i2c_client *client); 314 315 static const struct i2c_device_id w83792d_id[] = { 316 { "w83792d", 0 }, 317 { } 318 }; 319 MODULE_DEVICE_TABLE(i2c, w83792d_id); 320 321 static struct i2c_driver w83792d_driver = { 322 .class = I2C_CLASS_HWMON, 323 .driver = { 324 .name = "w83792d", 325 }, 326 .probe = w83792d_probe, 327 .remove = w83792d_remove, 328 .id_table = w83792d_id, 329 .detect = w83792d_detect, 330 .address_list = normal_i2c, 331 }; 332 333 static inline long in_count_from_reg(int nr, struct w83792d_data *data) 334 { 335 /* in7 and in8 do not have low bits, but the formula still works */ 336 return (data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03); 337 } 338 339 /* 340 * The SMBus locks itself. The Winbond W83792D chip has a bank register, 341 * but the driver only accesses registers in bank 0, so we don't have 342 * to switch banks and lock access between switches. 343 */ 344 static inline int w83792d_read_value(struct i2c_client *client, u8 reg) 345 { 346 return i2c_smbus_read_byte_data(client, reg); 347 } 348 349 static inline int 350 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value) 351 { 352 return i2c_smbus_write_byte_data(client, reg, value); 353 } 354 355 /* following are the sysfs callback functions */ 356 static ssize_t show_in(struct device *dev, struct device_attribute *attr, 357 char *buf) 358 { 359 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 360 int nr = sensor_attr->index; 361 struct w83792d_data *data = w83792d_update_device(dev); 362 return sprintf(buf, "%ld\n", 363 IN_FROM_REG(nr, in_count_from_reg(nr, data))); 364 } 365 366 #define show_in_reg(reg) \ 367 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ 368 char *buf) \ 369 { \ 370 struct sensor_device_attribute *sensor_attr \ 371 = to_sensor_dev_attr(attr); \ 372 int nr = sensor_attr->index; \ 373 struct w83792d_data *data = w83792d_update_device(dev); \ 374 return sprintf(buf, "%ld\n", \ 375 (long)(IN_FROM_REG(nr, data->reg[nr]) * 4)); \ 376 } 377 378 show_in_reg(in_min); 379 show_in_reg(in_max); 380 381 #define store_in_reg(REG, reg) \ 382 static ssize_t store_in_##reg(struct device *dev, \ 383 struct device_attribute *attr, \ 384 const char *buf, size_t count) \ 385 { \ 386 struct sensor_device_attribute *sensor_attr \ 387 = to_sensor_dev_attr(attr); \ 388 int nr = sensor_attr->index; \ 389 struct i2c_client *client = to_i2c_client(dev); \ 390 struct w83792d_data *data = i2c_get_clientdata(client); \ 391 unsigned long val; \ 392 int err = kstrtoul(buf, 10, &val); \ 393 if (err) \ 394 return err; \ 395 mutex_lock(&data->update_lock); \ 396 data->in_##reg[nr] = clamp_val(IN_TO_REG(nr, val) / 4, 0, 255); \ 397 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], \ 398 data->in_##reg[nr]); \ 399 mutex_unlock(&data->update_lock); \ 400 \ 401 return count; \ 402 } 403 store_in_reg(MIN, min); 404 store_in_reg(MAX, max); 405 406 #define show_fan_reg(reg) \ 407 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ 408 char *buf) \ 409 { \ 410 struct sensor_device_attribute *sensor_attr \ 411 = to_sensor_dev_attr(attr); \ 412 int nr = sensor_attr->index - 1; \ 413 struct w83792d_data *data = w83792d_update_device(dev); \ 414 return sprintf(buf, "%d\n", \ 415 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \ 416 } 417 418 show_fan_reg(fan); 419 show_fan_reg(fan_min); 420 421 static ssize_t 422 store_fan_min(struct device *dev, struct device_attribute *attr, 423 const char *buf, size_t count) 424 { 425 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 426 int nr = sensor_attr->index - 1; 427 struct i2c_client *client = to_i2c_client(dev); 428 struct w83792d_data *data = i2c_get_clientdata(client); 429 unsigned long val; 430 int err; 431 432 err = kstrtoul(buf, 10, &val); 433 if (err) 434 return err; 435 436 mutex_lock(&data->update_lock); 437 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); 438 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], 439 data->fan_min[nr]); 440 mutex_unlock(&data->update_lock); 441 442 return count; 443 } 444 445 static ssize_t 446 show_fan_div(struct device *dev, struct device_attribute *attr, 447 char *buf) 448 { 449 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 450 int nr = sensor_attr->index; 451 struct w83792d_data *data = w83792d_update_device(dev); 452 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1])); 453 } 454 455 /* 456 * Note: we save and restore the fan minimum here, because its value is 457 * determined in part by the fan divisor. This follows the principle of 458 * least surprise; the user doesn't expect the fan minimum to change just 459 * because the divisor changed. 460 */ 461 static ssize_t 462 store_fan_div(struct device *dev, struct device_attribute *attr, 463 const char *buf, size_t count) 464 { 465 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 466 int nr = sensor_attr->index - 1; 467 struct i2c_client *client = to_i2c_client(dev); 468 struct w83792d_data *data = i2c_get_clientdata(client); 469 unsigned long min; 470 /*u8 reg;*/ 471 u8 fan_div_reg = 0; 472 u8 tmp_fan_div; 473 unsigned long val; 474 int err; 475 476 err = kstrtoul(buf, 10, &val); 477 if (err) 478 return err; 479 480 /* Save fan_min */ 481 mutex_lock(&data->update_lock); 482 min = FAN_FROM_REG(data->fan_min[nr], 483 DIV_FROM_REG(data->fan_div[nr])); 484 485 data->fan_div[nr] = DIV_TO_REG(val); 486 487 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]); 488 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8; 489 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70) 490 : ((data->fan_div[nr]) & 0x07); 491 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1], 492 fan_div_reg | tmp_fan_div); 493 494 /* Restore fan_min */ 495 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); 496 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]); 497 mutex_unlock(&data->update_lock); 498 499 return count; 500 } 501 502 /* read/write the temperature1, includes measured value and limits */ 503 504 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr, 505 char *buf) 506 { 507 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 508 int nr = sensor_attr->index; 509 struct w83792d_data *data = w83792d_update_device(dev); 510 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr])); 511 } 512 513 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr, 514 const char *buf, size_t count) 515 { 516 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 517 int nr = sensor_attr->index; 518 struct i2c_client *client = to_i2c_client(dev); 519 struct w83792d_data *data = i2c_get_clientdata(client); 520 long val; 521 int err; 522 523 err = kstrtol(buf, 10, &val); 524 if (err) 525 return err; 526 527 mutex_lock(&data->update_lock); 528 data->temp1[nr] = TEMP1_TO_REG(val); 529 w83792d_write_value(client, W83792D_REG_TEMP1[nr], 530 data->temp1[nr]); 531 mutex_unlock(&data->update_lock); 532 533 return count; 534 } 535 536 /* read/write the temperature2-3, includes measured value and limits */ 537 538 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr, 539 char *buf) 540 { 541 struct sensor_device_attribute_2 *sensor_attr 542 = to_sensor_dev_attr_2(attr); 543 int nr = sensor_attr->nr; 544 int index = sensor_attr->index; 545 struct w83792d_data *data = w83792d_update_device(dev); 546 return sprintf(buf, "%ld\n", 547 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index], 548 data->temp_add[nr][index+1])); 549 } 550 551 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr, 552 const char *buf, size_t count) 553 { 554 struct sensor_device_attribute_2 *sensor_attr 555 = to_sensor_dev_attr_2(attr); 556 int nr = sensor_attr->nr; 557 int index = sensor_attr->index; 558 struct i2c_client *client = to_i2c_client(dev); 559 struct w83792d_data *data = i2c_get_clientdata(client); 560 long val; 561 int err; 562 563 err = kstrtol(buf, 10, &val); 564 if (err) 565 return err; 566 567 mutex_lock(&data->update_lock); 568 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val); 569 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val); 570 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index], 571 data->temp_add[nr][index]); 572 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1], 573 data->temp_add[nr][index+1]); 574 mutex_unlock(&data->update_lock); 575 576 return count; 577 } 578 579 /* get realtime status of all sensors items: voltage, temp, fan */ 580 static ssize_t 581 alarms_show(struct device *dev, struct device_attribute *attr, char *buf) 582 { 583 struct w83792d_data *data = w83792d_update_device(dev); 584 return sprintf(buf, "%d\n", data->alarms); 585 } 586 587 static ssize_t show_alarm(struct device *dev, 588 struct device_attribute *attr, char *buf) 589 { 590 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 591 int nr = sensor_attr->index; 592 struct w83792d_data *data = w83792d_update_device(dev); 593 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1); 594 } 595 596 static ssize_t 597 show_pwm(struct device *dev, struct device_attribute *attr, 598 char *buf) 599 { 600 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 601 int nr = sensor_attr->index; 602 struct w83792d_data *data = w83792d_update_device(dev); 603 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4); 604 } 605 606 static ssize_t 607 show_pwmenable(struct device *dev, struct device_attribute *attr, 608 char *buf) 609 { 610 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 611 int nr = sensor_attr->index - 1; 612 struct w83792d_data *data = w83792d_update_device(dev); 613 long pwm_enable_tmp = 1; 614 615 switch (data->pwmenable[nr]) { 616 case 0: 617 pwm_enable_tmp = 1; /* manual mode */ 618 break; 619 case 1: 620 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */ 621 break; 622 case 2: 623 pwm_enable_tmp = 2; /* Smart Fan II */ 624 break; 625 } 626 627 return sprintf(buf, "%ld\n", pwm_enable_tmp); 628 } 629 630 static ssize_t 631 store_pwm(struct device *dev, struct device_attribute *attr, 632 const char *buf, size_t count) 633 { 634 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 635 int nr = sensor_attr->index; 636 struct i2c_client *client = to_i2c_client(dev); 637 struct w83792d_data *data = i2c_get_clientdata(client); 638 unsigned long val; 639 int err; 640 641 err = kstrtoul(buf, 10, &val); 642 if (err) 643 return err; 644 val = clamp_val(val, 0, 255) >> 4; 645 646 mutex_lock(&data->update_lock); 647 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0; 648 data->pwm[nr] = val; 649 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 650 mutex_unlock(&data->update_lock); 651 652 return count; 653 } 654 655 static ssize_t 656 store_pwmenable(struct device *dev, struct device_attribute *attr, 657 const char *buf, size_t count) 658 { 659 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 660 int nr = sensor_attr->index - 1; 661 struct i2c_client *client = to_i2c_client(dev); 662 struct w83792d_data *data = i2c_get_clientdata(client); 663 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp; 664 unsigned long val; 665 int err; 666 667 err = kstrtoul(buf, 10, &val); 668 if (err) 669 return err; 670 671 if (val < 1 || val > 3) 672 return -EINVAL; 673 674 mutex_lock(&data->update_lock); 675 switch (val) { 676 case 1: 677 data->pwmenable[nr] = 0; /* manual mode */ 678 break; 679 case 2: 680 data->pwmenable[nr] = 2; /* Smart Fan II */ 681 break; 682 case 3: 683 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */ 684 break; 685 } 686 cfg1_tmp = data->pwmenable[0]; 687 cfg2_tmp = (data->pwmenable[1]) << 2; 688 cfg3_tmp = (data->pwmenable[2]) << 4; 689 cfg4_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG) & 0xc0; 690 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp; 691 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp); 692 mutex_unlock(&data->update_lock); 693 694 return count; 695 } 696 697 static ssize_t 698 show_pwm_mode(struct device *dev, struct device_attribute *attr, 699 char *buf) 700 { 701 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 702 int nr = sensor_attr->index; 703 struct w83792d_data *data = w83792d_update_device(dev); 704 return sprintf(buf, "%d\n", data->pwm[nr] >> 7); 705 } 706 707 static ssize_t 708 store_pwm_mode(struct device *dev, struct device_attribute *attr, 709 const char *buf, size_t count) 710 { 711 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 712 int nr = sensor_attr->index; 713 struct i2c_client *client = to_i2c_client(dev); 714 struct w83792d_data *data = i2c_get_clientdata(client); 715 unsigned long val; 716 int err; 717 718 err = kstrtoul(buf, 10, &val); 719 if (err) 720 return err; 721 if (val > 1) 722 return -EINVAL; 723 724 mutex_lock(&data->update_lock); 725 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]); 726 if (val) { /* PWM mode */ 727 data->pwm[nr] |= 0x80; 728 } else { /* DC mode */ 729 data->pwm[nr] &= 0x7f; 730 } 731 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 732 mutex_unlock(&data->update_lock); 733 734 return count; 735 } 736 737 static ssize_t 738 intrusion0_alarm_show(struct device *dev, struct device_attribute *attr, 739 char *buf) 740 { 741 struct w83792d_data *data = w83792d_update_device(dev); 742 return sprintf(buf, "%d\n", data->chassis); 743 } 744 745 static ssize_t 746 intrusion0_alarm_store(struct device *dev, struct device_attribute *attr, 747 const char *buf, size_t count) 748 { 749 struct i2c_client *client = to_i2c_client(dev); 750 struct w83792d_data *data = i2c_get_clientdata(client); 751 unsigned long val; 752 u8 reg; 753 754 if (kstrtoul(buf, 10, &val) || val != 0) 755 return -EINVAL; 756 757 mutex_lock(&data->update_lock); 758 reg = w83792d_read_value(client, W83792D_REG_CHASSIS_CLR); 759 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, reg | 0x80); 760 data->valid = 0; /* Force cache refresh */ 761 mutex_unlock(&data->update_lock); 762 763 return count; 764 } 765 766 /* For Smart Fan I / Thermal Cruise */ 767 static ssize_t 768 show_thermal_cruise(struct device *dev, struct device_attribute *attr, 769 char *buf) 770 { 771 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 772 int nr = sensor_attr->index; 773 struct w83792d_data *data = w83792d_update_device(dev); 774 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]); 775 } 776 777 static ssize_t 778 store_thermal_cruise(struct device *dev, struct device_attribute *attr, 779 const char *buf, size_t count) 780 { 781 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 782 int nr = sensor_attr->index - 1; 783 struct i2c_client *client = to_i2c_client(dev); 784 struct w83792d_data *data = i2c_get_clientdata(client); 785 u8 target_tmp = 0, target_mask = 0; 786 unsigned long val; 787 int err; 788 789 err = kstrtoul(buf, 10, &val); 790 if (err) 791 return err; 792 793 target_tmp = val; 794 target_tmp = target_tmp & 0x7f; 795 mutex_lock(&data->update_lock); 796 target_mask = w83792d_read_value(client, 797 W83792D_REG_THERMAL[nr]) & 0x80; 798 data->thermal_cruise[nr] = clamp_val(target_tmp, 0, 255); 799 w83792d_write_value(client, W83792D_REG_THERMAL[nr], 800 (data->thermal_cruise[nr]) | target_mask); 801 mutex_unlock(&data->update_lock); 802 803 return count; 804 } 805 806 /* For Smart Fan I/Thermal Cruise and Smart Fan II */ 807 static ssize_t 808 show_tolerance(struct device *dev, struct device_attribute *attr, 809 char *buf) 810 { 811 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 812 int nr = sensor_attr->index; 813 struct w83792d_data *data = w83792d_update_device(dev); 814 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]); 815 } 816 817 static ssize_t 818 store_tolerance(struct device *dev, struct device_attribute *attr, 819 const char *buf, size_t count) 820 { 821 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 822 int nr = sensor_attr->index - 1; 823 struct i2c_client *client = to_i2c_client(dev); 824 struct w83792d_data *data = i2c_get_clientdata(client); 825 u8 tol_tmp, tol_mask; 826 unsigned long val; 827 int err; 828 829 err = kstrtoul(buf, 10, &val); 830 if (err) 831 return err; 832 833 mutex_lock(&data->update_lock); 834 tol_mask = w83792d_read_value(client, 835 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0); 836 tol_tmp = clamp_val(val, 0, 15); 837 tol_tmp &= 0x0f; 838 data->tolerance[nr] = tol_tmp; 839 if (nr == 1) 840 tol_tmp <<= 4; 841 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr], 842 tol_mask | tol_tmp); 843 mutex_unlock(&data->update_lock); 844 845 return count; 846 } 847 848 /* For Smart Fan II */ 849 static ssize_t 850 show_sf2_point(struct device *dev, struct device_attribute *attr, 851 char *buf) 852 { 853 struct sensor_device_attribute_2 *sensor_attr 854 = to_sensor_dev_attr_2(attr); 855 int nr = sensor_attr->nr; 856 int index = sensor_attr->index; 857 struct w83792d_data *data = w83792d_update_device(dev); 858 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]); 859 } 860 861 static ssize_t 862 store_sf2_point(struct device *dev, struct device_attribute *attr, 863 const char *buf, size_t count) 864 { 865 struct sensor_device_attribute_2 *sensor_attr 866 = to_sensor_dev_attr_2(attr); 867 int nr = sensor_attr->nr - 1; 868 int index = sensor_attr->index - 1; 869 struct i2c_client *client = to_i2c_client(dev); 870 struct w83792d_data *data = i2c_get_clientdata(client); 871 u8 mask_tmp = 0; 872 unsigned long val; 873 int err; 874 875 err = kstrtoul(buf, 10, &val); 876 if (err) 877 return err; 878 879 mutex_lock(&data->update_lock); 880 data->sf2_points[index][nr] = clamp_val(val, 0, 127); 881 mask_tmp = w83792d_read_value(client, 882 W83792D_REG_POINTS[index][nr]) & 0x80; 883 w83792d_write_value(client, W83792D_REG_POINTS[index][nr], 884 mask_tmp|data->sf2_points[index][nr]); 885 mutex_unlock(&data->update_lock); 886 887 return count; 888 } 889 890 static ssize_t 891 show_sf2_level(struct device *dev, struct device_attribute *attr, 892 char *buf) 893 { 894 struct sensor_device_attribute_2 *sensor_attr 895 = to_sensor_dev_attr_2(attr); 896 int nr = sensor_attr->nr; 897 int index = sensor_attr->index; 898 struct w83792d_data *data = w83792d_update_device(dev); 899 return sprintf(buf, "%d\n", 900 (((data->sf2_levels[index-1][nr]) * 100) / 15)); 901 } 902 903 static ssize_t 904 store_sf2_level(struct device *dev, struct device_attribute *attr, 905 const char *buf, size_t count) 906 { 907 struct sensor_device_attribute_2 *sensor_attr 908 = to_sensor_dev_attr_2(attr); 909 int nr = sensor_attr->nr; 910 int index = sensor_attr->index - 1; 911 struct i2c_client *client = to_i2c_client(dev); 912 struct w83792d_data *data = i2c_get_clientdata(client); 913 u8 mask_tmp = 0, level_tmp = 0; 914 unsigned long val; 915 int err; 916 917 err = kstrtoul(buf, 10, &val); 918 if (err) 919 return err; 920 921 mutex_lock(&data->update_lock); 922 data->sf2_levels[index][nr] = clamp_val((val * 15) / 100, 0, 15); 923 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr]) 924 & ((nr == 3) ? 0xf0 : 0x0f); 925 if (nr == 3) 926 level_tmp = data->sf2_levels[index][nr]; 927 else 928 level_tmp = data->sf2_levels[index][nr] << 4; 929 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], 930 level_tmp | mask_tmp); 931 mutex_unlock(&data->update_lock); 932 933 return count; 934 } 935 936 937 static int 938 w83792d_detect_subclients(struct i2c_client *new_client) 939 { 940 int i, id, err; 941 int address = new_client->addr; 942 u8 val; 943 struct i2c_adapter *adapter = new_client->adapter; 944 struct w83792d_data *data = i2c_get_clientdata(new_client); 945 946 id = i2c_adapter_id(adapter); 947 if (force_subclients[0] == id && force_subclients[1] == address) { 948 for (i = 2; i <= 3; i++) { 949 if (force_subclients[i] < 0x48 || 950 force_subclients[i] > 0x4f) { 951 dev_err(&new_client->dev, 952 "invalid subclient address %d; must be 0x48-0x4f\n", 953 force_subclients[i]); 954 err = -ENODEV; 955 goto ERROR_SC_0; 956 } 957 } 958 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR, 959 (force_subclients[2] & 0x07) | 960 ((force_subclients[3] & 0x07) << 4)); 961 } 962 963 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR); 964 if (!(val & 0x08)) 965 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7)); 966 if (!(val & 0x80)) { 967 if ((data->lm75[0] != NULL) && 968 ((val & 0x7) == ((val >> 4) & 0x7))) { 969 dev_err(&new_client->dev, 970 "duplicate addresses 0x%x, use force_subclient\n", 971 data->lm75[0]->addr); 972 err = -ENODEV; 973 goto ERROR_SC_1; 974 } 975 data->lm75[1] = i2c_new_dummy(adapter, 976 0x48 + ((val >> 4) & 0x7)); 977 } 978 979 return 0; 980 981 /* Undo inits in case of errors */ 982 983 ERROR_SC_1: 984 if (data->lm75[0] != NULL) 985 i2c_unregister_device(data->lm75[0]); 986 ERROR_SC_0: 987 return err; 988 } 989 990 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); 991 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); 992 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); 993 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); 994 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4); 995 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5); 996 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6); 997 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7); 998 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8); 999 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO, 1000 show_in_min, store_in_min, 0); 1001 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, 1002 show_in_min, store_in_min, 1); 1003 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, 1004 show_in_min, store_in_min, 2); 1005 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO, 1006 show_in_min, store_in_min, 3); 1007 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO, 1008 show_in_min, store_in_min, 4); 1009 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO, 1010 show_in_min, store_in_min, 5); 1011 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO, 1012 show_in_min, store_in_min, 6); 1013 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO, 1014 show_in_min, store_in_min, 7); 1015 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO, 1016 show_in_min, store_in_min, 8); 1017 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO, 1018 show_in_max, store_in_max, 0); 1019 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, 1020 show_in_max, store_in_max, 1); 1021 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, 1022 show_in_max, store_in_max, 2); 1023 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO, 1024 show_in_max, store_in_max, 3); 1025 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO, 1026 show_in_max, store_in_max, 4); 1027 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO, 1028 show_in_max, store_in_max, 5); 1029 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO, 1030 show_in_max, store_in_max, 6); 1031 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO, 1032 show_in_max, store_in_max, 7); 1033 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO, 1034 show_in_max, store_in_max, 8); 1035 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0); 1036 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0); 1037 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0); 1038 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, 1039 show_temp1, store_temp1, 0, 1); 1040 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23, 1041 store_temp23, 0, 2); 1042 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23, 1043 store_temp23, 1, 2); 1044 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, 1045 show_temp1, store_temp1, 0, 2); 1046 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, 1047 show_temp23, store_temp23, 0, 4); 1048 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, 1049 show_temp23, store_temp23, 1, 4); 1050 static DEVICE_ATTR_RO(alarms); 1051 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); 1052 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); 1053 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2); 1054 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3); 1055 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4); 1056 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5); 1057 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6); 1058 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7); 1059 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8); 1060 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9); 1061 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10); 1062 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11); 1063 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12); 1064 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15); 1065 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19); 1066 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20); 1067 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21); 1068 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22); 1069 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23); 1070 static DEVICE_ATTR_RW(intrusion0_alarm); 1071 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0); 1072 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1); 1073 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2); 1074 static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3); 1075 static SENSOR_DEVICE_ATTR(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4); 1076 static SENSOR_DEVICE_ATTR(pwm6, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 5); 1077 static SENSOR_DEVICE_ATTR(pwm7, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 6); 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(pwm4_mode, S_IWUSR | S_IRUGO, 1091 show_pwm_mode, store_pwm_mode, 3); 1092 static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO, 1093 show_pwm_mode, store_pwm_mode, 4); 1094 static SENSOR_DEVICE_ATTR(pwm6_mode, S_IWUSR | S_IRUGO, 1095 show_pwm_mode, store_pwm_mode, 5); 1096 static SENSOR_DEVICE_ATTR(pwm7_mode, S_IWUSR | S_IRUGO, 1097 show_pwm_mode, store_pwm_mode, 6); 1098 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO, 1099 show_tolerance, store_tolerance, 1); 1100 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO, 1101 show_tolerance, store_tolerance, 2); 1102 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO, 1103 show_tolerance, store_tolerance, 3); 1104 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO, 1105 show_thermal_cruise, store_thermal_cruise, 1); 1106 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO, 1107 show_thermal_cruise, store_thermal_cruise, 2); 1108 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO, 1109 show_thermal_cruise, store_thermal_cruise, 3); 1110 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR, 1111 show_sf2_point, store_sf2_point, 1, 1); 1112 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR, 1113 show_sf2_point, store_sf2_point, 2, 1); 1114 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR, 1115 show_sf2_point, store_sf2_point, 3, 1); 1116 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR, 1117 show_sf2_point, store_sf2_point, 4, 1); 1118 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR, 1119 show_sf2_point, store_sf2_point, 1, 2); 1120 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR, 1121 show_sf2_point, store_sf2_point, 2, 2); 1122 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR, 1123 show_sf2_point, store_sf2_point, 3, 2); 1124 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR, 1125 show_sf2_point, store_sf2_point, 4, 2); 1126 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR, 1127 show_sf2_point, store_sf2_point, 1, 3); 1128 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR, 1129 show_sf2_point, store_sf2_point, 2, 3); 1130 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR, 1131 show_sf2_point, store_sf2_point, 3, 3); 1132 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR, 1133 show_sf2_point, store_sf2_point, 4, 3); 1134 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR, 1135 show_sf2_level, store_sf2_level, 1, 1); 1136 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR, 1137 show_sf2_level, store_sf2_level, 2, 1); 1138 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR, 1139 show_sf2_level, store_sf2_level, 3, 1); 1140 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR, 1141 show_sf2_level, store_sf2_level, 1, 2); 1142 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR, 1143 show_sf2_level, store_sf2_level, 2, 2); 1144 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR, 1145 show_sf2_level, store_sf2_level, 3, 2); 1146 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR, 1147 show_sf2_level, store_sf2_level, 1, 3); 1148 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR, 1149 show_sf2_level, store_sf2_level, 2, 3); 1150 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR, 1151 show_sf2_level, store_sf2_level, 3, 3); 1152 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1); 1153 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2); 1154 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3); 1155 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4); 1156 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5); 1157 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6); 1158 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7); 1159 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, 1160 show_fan_min, store_fan_min, 1); 1161 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, 1162 show_fan_min, store_fan_min, 2); 1163 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, 1164 show_fan_min, store_fan_min, 3); 1165 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, 1166 show_fan_min, store_fan_min, 4); 1167 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO, 1168 show_fan_min, store_fan_min, 5); 1169 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO, 1170 show_fan_min, store_fan_min, 6); 1171 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO, 1172 show_fan_min, store_fan_min, 7); 1173 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO, 1174 show_fan_div, store_fan_div, 1); 1175 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO, 1176 show_fan_div, store_fan_div, 2); 1177 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO, 1178 show_fan_div, store_fan_div, 3); 1179 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO, 1180 show_fan_div, store_fan_div, 4); 1181 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO, 1182 show_fan_div, store_fan_div, 5); 1183 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO, 1184 show_fan_div, store_fan_div, 6); 1185 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO, 1186 show_fan_div, store_fan_div, 7); 1187 1188 static struct attribute *w83792d_attributes_fan[4][7] = { 1189 { 1190 &sensor_dev_attr_fan4_input.dev_attr.attr, 1191 &sensor_dev_attr_fan4_min.dev_attr.attr, 1192 &sensor_dev_attr_fan4_div.dev_attr.attr, 1193 &sensor_dev_attr_fan4_alarm.dev_attr.attr, 1194 &sensor_dev_attr_pwm4.dev_attr.attr, 1195 &sensor_dev_attr_pwm4_mode.dev_attr.attr, 1196 NULL 1197 }, { 1198 &sensor_dev_attr_fan5_input.dev_attr.attr, 1199 &sensor_dev_attr_fan5_min.dev_attr.attr, 1200 &sensor_dev_attr_fan5_div.dev_attr.attr, 1201 &sensor_dev_attr_fan5_alarm.dev_attr.attr, 1202 &sensor_dev_attr_pwm5.dev_attr.attr, 1203 &sensor_dev_attr_pwm5_mode.dev_attr.attr, 1204 NULL 1205 }, { 1206 &sensor_dev_attr_fan6_input.dev_attr.attr, 1207 &sensor_dev_attr_fan6_min.dev_attr.attr, 1208 &sensor_dev_attr_fan6_div.dev_attr.attr, 1209 &sensor_dev_attr_fan6_alarm.dev_attr.attr, 1210 &sensor_dev_attr_pwm6.dev_attr.attr, 1211 &sensor_dev_attr_pwm6_mode.dev_attr.attr, 1212 NULL 1213 }, { 1214 &sensor_dev_attr_fan7_input.dev_attr.attr, 1215 &sensor_dev_attr_fan7_min.dev_attr.attr, 1216 &sensor_dev_attr_fan7_div.dev_attr.attr, 1217 &sensor_dev_attr_fan7_alarm.dev_attr.attr, 1218 &sensor_dev_attr_pwm7.dev_attr.attr, 1219 &sensor_dev_attr_pwm7_mode.dev_attr.attr, 1220 NULL 1221 } 1222 }; 1223 1224 static const struct attribute_group w83792d_group_fan[4] = { 1225 { .attrs = w83792d_attributes_fan[0] }, 1226 { .attrs = w83792d_attributes_fan[1] }, 1227 { .attrs = w83792d_attributes_fan[2] }, 1228 { .attrs = w83792d_attributes_fan[3] }, 1229 }; 1230 1231 static struct attribute *w83792d_attributes[] = { 1232 &sensor_dev_attr_in0_input.dev_attr.attr, 1233 &sensor_dev_attr_in0_max.dev_attr.attr, 1234 &sensor_dev_attr_in0_min.dev_attr.attr, 1235 &sensor_dev_attr_in1_input.dev_attr.attr, 1236 &sensor_dev_attr_in1_max.dev_attr.attr, 1237 &sensor_dev_attr_in1_min.dev_attr.attr, 1238 &sensor_dev_attr_in2_input.dev_attr.attr, 1239 &sensor_dev_attr_in2_max.dev_attr.attr, 1240 &sensor_dev_attr_in2_min.dev_attr.attr, 1241 &sensor_dev_attr_in3_input.dev_attr.attr, 1242 &sensor_dev_attr_in3_max.dev_attr.attr, 1243 &sensor_dev_attr_in3_min.dev_attr.attr, 1244 &sensor_dev_attr_in4_input.dev_attr.attr, 1245 &sensor_dev_attr_in4_max.dev_attr.attr, 1246 &sensor_dev_attr_in4_min.dev_attr.attr, 1247 &sensor_dev_attr_in5_input.dev_attr.attr, 1248 &sensor_dev_attr_in5_max.dev_attr.attr, 1249 &sensor_dev_attr_in5_min.dev_attr.attr, 1250 &sensor_dev_attr_in6_input.dev_attr.attr, 1251 &sensor_dev_attr_in6_max.dev_attr.attr, 1252 &sensor_dev_attr_in6_min.dev_attr.attr, 1253 &sensor_dev_attr_in7_input.dev_attr.attr, 1254 &sensor_dev_attr_in7_max.dev_attr.attr, 1255 &sensor_dev_attr_in7_min.dev_attr.attr, 1256 &sensor_dev_attr_in8_input.dev_attr.attr, 1257 &sensor_dev_attr_in8_max.dev_attr.attr, 1258 &sensor_dev_attr_in8_min.dev_attr.attr, 1259 &sensor_dev_attr_in0_alarm.dev_attr.attr, 1260 &sensor_dev_attr_in1_alarm.dev_attr.attr, 1261 &sensor_dev_attr_in2_alarm.dev_attr.attr, 1262 &sensor_dev_attr_in3_alarm.dev_attr.attr, 1263 &sensor_dev_attr_in4_alarm.dev_attr.attr, 1264 &sensor_dev_attr_in5_alarm.dev_attr.attr, 1265 &sensor_dev_attr_in6_alarm.dev_attr.attr, 1266 &sensor_dev_attr_in7_alarm.dev_attr.attr, 1267 &sensor_dev_attr_in8_alarm.dev_attr.attr, 1268 &sensor_dev_attr_temp1_input.dev_attr.attr, 1269 &sensor_dev_attr_temp1_max.dev_attr.attr, 1270 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, 1271 &sensor_dev_attr_temp2_input.dev_attr.attr, 1272 &sensor_dev_attr_temp2_max.dev_attr.attr, 1273 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, 1274 &sensor_dev_attr_temp3_input.dev_attr.attr, 1275 &sensor_dev_attr_temp3_max.dev_attr.attr, 1276 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, 1277 &sensor_dev_attr_temp1_alarm.dev_attr.attr, 1278 &sensor_dev_attr_temp2_alarm.dev_attr.attr, 1279 &sensor_dev_attr_temp3_alarm.dev_attr.attr, 1280 &sensor_dev_attr_pwm1.dev_attr.attr, 1281 &sensor_dev_attr_pwm1_mode.dev_attr.attr, 1282 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 1283 &sensor_dev_attr_pwm2.dev_attr.attr, 1284 &sensor_dev_attr_pwm2_mode.dev_attr.attr, 1285 &sensor_dev_attr_pwm2_enable.dev_attr.attr, 1286 &sensor_dev_attr_pwm3.dev_attr.attr, 1287 &sensor_dev_attr_pwm3_mode.dev_attr.attr, 1288 &sensor_dev_attr_pwm3_enable.dev_attr.attr, 1289 &dev_attr_alarms.attr, 1290 &dev_attr_intrusion0_alarm.attr, 1291 &sensor_dev_attr_tolerance1.dev_attr.attr, 1292 &sensor_dev_attr_thermal_cruise1.dev_attr.attr, 1293 &sensor_dev_attr_tolerance2.dev_attr.attr, 1294 &sensor_dev_attr_thermal_cruise2.dev_attr.attr, 1295 &sensor_dev_attr_tolerance3.dev_attr.attr, 1296 &sensor_dev_attr_thermal_cruise3.dev_attr.attr, 1297 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr, 1298 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr, 1299 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr, 1300 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr, 1301 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr, 1302 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr, 1303 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr, 1304 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr, 1305 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr, 1306 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr, 1307 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr, 1308 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr, 1309 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr, 1310 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr, 1311 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr, 1312 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr, 1313 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr, 1314 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr, 1315 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr, 1316 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr, 1317 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr, 1318 &sensor_dev_attr_fan1_input.dev_attr.attr, 1319 &sensor_dev_attr_fan1_min.dev_attr.attr, 1320 &sensor_dev_attr_fan1_div.dev_attr.attr, 1321 &sensor_dev_attr_fan1_alarm.dev_attr.attr, 1322 &sensor_dev_attr_fan2_input.dev_attr.attr, 1323 &sensor_dev_attr_fan2_min.dev_attr.attr, 1324 &sensor_dev_attr_fan2_div.dev_attr.attr, 1325 &sensor_dev_attr_fan2_alarm.dev_attr.attr, 1326 &sensor_dev_attr_fan3_input.dev_attr.attr, 1327 &sensor_dev_attr_fan3_min.dev_attr.attr, 1328 &sensor_dev_attr_fan3_div.dev_attr.attr, 1329 &sensor_dev_attr_fan3_alarm.dev_attr.attr, 1330 NULL 1331 }; 1332 1333 static const struct attribute_group w83792d_group = { 1334 .attrs = w83792d_attributes, 1335 }; 1336 1337 /* Return 0 if detection is successful, -ENODEV otherwise */ 1338 static int 1339 w83792d_detect(struct i2c_client *client, struct i2c_board_info *info) 1340 { 1341 struct i2c_adapter *adapter = client->adapter; 1342 int val1, val2; 1343 unsigned short address = client->addr; 1344 1345 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 1346 return -ENODEV; 1347 1348 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) 1349 return -ENODEV; 1350 1351 val1 = w83792d_read_value(client, W83792D_REG_BANK); 1352 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1353 /* Check for Winbond ID if in bank 0 */ 1354 if (!(val1 & 0x07)) { /* is Bank0 */ 1355 if ((!(val1 & 0x80) && val2 != 0xa3) || 1356 ((val1 & 0x80) && val2 != 0x5c)) 1357 return -ENODEV; 1358 } 1359 /* 1360 * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR 1361 * should match 1362 */ 1363 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address) 1364 return -ENODEV; 1365 1366 /* Put it now into bank 0 and Vendor ID High Byte */ 1367 w83792d_write_value(client, 1368 W83792D_REG_BANK, 1369 (w83792d_read_value(client, 1370 W83792D_REG_BANK) & 0x78) | 0x80); 1371 1372 /* Determine the chip type. */ 1373 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID); 1374 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1375 if (val1 != 0x7a || val2 != 0x5c) 1376 return -ENODEV; 1377 1378 strlcpy(info->type, "w83792d", I2C_NAME_SIZE); 1379 1380 return 0; 1381 } 1382 1383 static int 1384 w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id) 1385 { 1386 struct w83792d_data *data; 1387 struct device *dev = &client->dev; 1388 int i, val1, err; 1389 1390 data = devm_kzalloc(dev, sizeof(struct w83792d_data), GFP_KERNEL); 1391 if (!data) 1392 return -ENOMEM; 1393 1394 i2c_set_clientdata(client, data); 1395 mutex_init(&data->update_lock); 1396 1397 err = w83792d_detect_subclients(client); 1398 if (err) 1399 return err; 1400 1401 /* Initialize the chip */ 1402 w83792d_init_client(client); 1403 1404 /* A few vars need to be filled upon startup */ 1405 for (i = 0; i < 7; i++) { 1406 data->fan_min[i] = w83792d_read_value(client, 1407 W83792D_REG_FAN_MIN[i]); 1408 } 1409 1410 /* Register sysfs hooks */ 1411 err = sysfs_create_group(&dev->kobj, &w83792d_group); 1412 if (err) 1413 goto exit_i2c_unregister; 1414 1415 /* 1416 * Read GPIO enable register to check if pins for fan 4,5 are used as 1417 * GPIO 1418 */ 1419 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN); 1420 1421 if (!(val1 & 0x40)) { 1422 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]); 1423 if (err) 1424 goto exit_remove_files; 1425 } 1426 1427 if (!(val1 & 0x20)) { 1428 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]); 1429 if (err) 1430 goto exit_remove_files; 1431 } 1432 1433 val1 = w83792d_read_value(client, W83792D_REG_PIN); 1434 if (val1 & 0x40) { 1435 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]); 1436 if (err) 1437 goto exit_remove_files; 1438 } 1439 1440 if (val1 & 0x04) { 1441 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]); 1442 if (err) 1443 goto exit_remove_files; 1444 } 1445 1446 data->hwmon_dev = hwmon_device_register(dev); 1447 if (IS_ERR(data->hwmon_dev)) { 1448 err = PTR_ERR(data->hwmon_dev); 1449 goto exit_remove_files; 1450 } 1451 1452 return 0; 1453 1454 exit_remove_files: 1455 sysfs_remove_group(&dev->kobj, &w83792d_group); 1456 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1457 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]); 1458 exit_i2c_unregister: 1459 if (data->lm75[0] != NULL) 1460 i2c_unregister_device(data->lm75[0]); 1461 if (data->lm75[1] != NULL) 1462 i2c_unregister_device(data->lm75[1]); 1463 return err; 1464 } 1465 1466 static int 1467 w83792d_remove(struct i2c_client *client) 1468 { 1469 struct w83792d_data *data = i2c_get_clientdata(client); 1470 int i; 1471 1472 hwmon_device_unregister(data->hwmon_dev); 1473 sysfs_remove_group(&client->dev.kobj, &w83792d_group); 1474 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1475 sysfs_remove_group(&client->dev.kobj, 1476 &w83792d_group_fan[i]); 1477 1478 if (data->lm75[0] != NULL) 1479 i2c_unregister_device(data->lm75[0]); 1480 if (data->lm75[1] != NULL) 1481 i2c_unregister_device(data->lm75[1]); 1482 1483 return 0; 1484 } 1485 1486 static void 1487 w83792d_init_client(struct i2c_client *client) 1488 { 1489 u8 temp2_cfg, temp3_cfg, vid_in_b; 1490 1491 if (init) 1492 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80); 1493 1494 /* 1495 * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0): 1496 * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of 1497 * vin0/vin1 can be modified by user; 1498 * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of 1499 * vin0/vin1 auto-updated, can NOT be modified by user. 1500 */ 1501 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B); 1502 w83792d_write_value(client, W83792D_REG_VID_IN_B, 1503 vid_in_b & 0xbf); 1504 1505 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG); 1506 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG); 1507 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG, 1508 temp2_cfg & 0xe6); 1509 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG, 1510 temp3_cfg & 0xe6); 1511 1512 /* Start monitoring */ 1513 w83792d_write_value(client, W83792D_REG_CONFIG, 1514 (w83792d_read_value(client, 1515 W83792D_REG_CONFIG) & 0xf7) 1516 | 0x01); 1517 } 1518 1519 static struct w83792d_data *w83792d_update_device(struct device *dev) 1520 { 1521 struct i2c_client *client = to_i2c_client(dev); 1522 struct w83792d_data *data = i2c_get_clientdata(client); 1523 int i, j; 1524 u8 reg_array_tmp[4], reg_tmp; 1525 1526 mutex_lock(&data->update_lock); 1527 1528 if (time_after 1529 (jiffies - data->last_updated, (unsigned long) (HZ * 3)) 1530 || time_before(jiffies, data->last_updated) || !data->valid) { 1531 dev_dbg(dev, "Starting device update\n"); 1532 1533 /* Update the voltages measured value and limits */ 1534 for (i = 0; i < 9; i++) { 1535 data->in[i] = w83792d_read_value(client, 1536 W83792D_REG_IN[i]); 1537 data->in_max[i] = w83792d_read_value(client, 1538 W83792D_REG_IN_MAX[i]); 1539 data->in_min[i] = w83792d_read_value(client, 1540 W83792D_REG_IN_MIN[i]); 1541 } 1542 data->low_bits = w83792d_read_value(client, 1543 W83792D_REG_LOW_BITS1) + 1544 (w83792d_read_value(client, 1545 W83792D_REG_LOW_BITS2) << 8); 1546 for (i = 0; i < 7; i++) { 1547 /* Update the Fan measured value and limits */ 1548 data->fan[i] = w83792d_read_value(client, 1549 W83792D_REG_FAN[i]); 1550 data->fan_min[i] = w83792d_read_value(client, 1551 W83792D_REG_FAN_MIN[i]); 1552 /* Update the PWM/DC Value and PWM/DC flag */ 1553 data->pwm[i] = w83792d_read_value(client, 1554 W83792D_REG_PWM[i]); 1555 } 1556 1557 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG); 1558 data->pwmenable[0] = reg_tmp & 0x03; 1559 data->pwmenable[1] = (reg_tmp>>2) & 0x03; 1560 data->pwmenable[2] = (reg_tmp>>4) & 0x03; 1561 1562 for (i = 0; i < 3; i++) { 1563 data->temp1[i] = w83792d_read_value(client, 1564 W83792D_REG_TEMP1[i]); 1565 } 1566 for (i = 0; i < 2; i++) { 1567 for (j = 0; j < 6; j++) { 1568 data->temp_add[i][j] = w83792d_read_value( 1569 client, W83792D_REG_TEMP_ADD[i][j]); 1570 } 1571 } 1572 1573 /* Update the Fan Divisor */ 1574 for (i = 0; i < 4; i++) { 1575 reg_array_tmp[i] = w83792d_read_value(client, 1576 W83792D_REG_FAN_DIV[i]); 1577 } 1578 data->fan_div[0] = reg_array_tmp[0] & 0x07; 1579 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07; 1580 data->fan_div[2] = reg_array_tmp[1] & 0x07; 1581 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07; 1582 data->fan_div[4] = reg_array_tmp[2] & 0x07; 1583 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07; 1584 data->fan_div[6] = reg_array_tmp[3] & 0x07; 1585 1586 /* Update the realtime status */ 1587 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) + 1588 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) + 1589 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16); 1590 1591 /* Update CaseOpen status and it's CLR_CHS. */ 1592 data->chassis = (w83792d_read_value(client, 1593 W83792D_REG_CHASSIS) >> 5) & 0x01; 1594 1595 /* Update Thermal Cruise/Smart Fan I target value */ 1596 for (i = 0; i < 3; i++) { 1597 data->thermal_cruise[i] = 1598 w83792d_read_value(client, 1599 W83792D_REG_THERMAL[i]) & 0x7f; 1600 } 1601 1602 /* Update Smart Fan I/II tolerance */ 1603 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]); 1604 data->tolerance[0] = reg_tmp & 0x0f; 1605 data->tolerance[1] = (reg_tmp >> 4) & 0x0f; 1606 data->tolerance[2] = w83792d_read_value(client, 1607 W83792D_REG_TOLERANCE[2]) & 0x0f; 1608 1609 /* Update Smart Fan II temperature points */ 1610 for (i = 0; i < 3; i++) { 1611 for (j = 0; j < 4; j++) { 1612 data->sf2_points[i][j] 1613 = w83792d_read_value(client, 1614 W83792D_REG_POINTS[i][j]) & 0x7f; 1615 } 1616 } 1617 1618 /* Update Smart Fan II duty cycle levels */ 1619 for (i = 0; i < 3; i++) { 1620 reg_tmp = w83792d_read_value(client, 1621 W83792D_REG_LEVELS[i][0]); 1622 data->sf2_levels[i][0] = reg_tmp & 0x0f; 1623 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f; 1624 reg_tmp = w83792d_read_value(client, 1625 W83792D_REG_LEVELS[i][2]); 1626 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f; 1627 data->sf2_levels[i][3] = reg_tmp & 0x0f; 1628 } 1629 1630 data->last_updated = jiffies; 1631 data->valid = 1; 1632 } 1633 1634 mutex_unlock(&data->update_lock); 1635 1636 #ifdef DEBUG 1637 w83792d_print_debug(data, dev); 1638 #endif 1639 1640 return data; 1641 } 1642 1643 #ifdef DEBUG 1644 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev) 1645 { 1646 int i = 0, j = 0; 1647 dev_dbg(dev, "==========The following is the debug message...========\n"); 1648 dev_dbg(dev, "9 set of Voltages: =====>\n"); 1649 for (i = 0; i < 9; i++) { 1650 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]); 1651 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]); 1652 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]); 1653 } 1654 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff); 1655 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8); 1656 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n"); 1657 for (i = 0; i < 7; i++) { 1658 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]); 1659 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]); 1660 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]); 1661 } 1662 dev_dbg(dev, "3 set of Temperatures: =====>\n"); 1663 for (i = 0; i < 3; i++) 1664 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]); 1665 1666 for (i = 0; i < 2; i++) { 1667 for (j = 0; j < 6; j++) { 1668 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j, 1669 data->temp_add[i][j]); 1670 } 1671 } 1672 1673 for (i = 0; i < 7; i++) 1674 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]); 1675 1676 dev_dbg(dev, "==========End of the debug message...================\n"); 1677 dev_dbg(dev, "\n"); 1678 } 1679 #endif 1680 1681 module_i2c_driver(w83792d_driver); 1682 1683 MODULE_AUTHOR("Shane Huang (Winbond)"); 1684 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6"); 1685 MODULE_LICENSE("GPL"); 1686