1 /* 2 w83792d.c - Part of lm_sensors, Linux kernel modules for hardware 3 monitoring 4 Copyright (C) 2004, 2005 Winbond Electronics Corp. 5 Chunhao Huang <DZShen@Winbond.com.tw>, 6 Rudolf Marek <r.marek@assembler.cz> 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 2 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program; if not, write to the Free Software 20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 21 22 Note: 23 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver. 24 2. This driver is only for Winbond W83792D C version device, there 25 are also some motherboards with B version W83792D device. The 26 calculation method to in6-in7(measured value, limits) is a little 27 different between C and B version. C or B version can be identified 28 by CR[0x49h]. 29 */ 30 31 /* 32 Supports following chips: 33 34 Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA 35 w83792d 9 7 7 3 0x7a 0x5ca3 yes no 36 */ 37 38 #include <linux/module.h> 39 #include <linux/init.h> 40 #include <linux/slab.h> 41 #include <linux/i2c.h> 42 #include <linux/hwmon.h> 43 #include <linux/hwmon-sysfs.h> 44 #include <linux/err.h> 45 #include <linux/mutex.h> 46 #include <linux/sysfs.h> 47 48 /* Addresses to scan */ 49 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, 50 I2C_CLIENT_END }; 51 52 /* Insmod parameters */ 53 I2C_CLIENT_INSMOD_1(w83792d); 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 int 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 /* Conversions. Rounding and limit checking is only done on the TO_REG 223 variants. Note that you should be a bit careful with which arguments 224 these macros are called: arguments may be evaluated more than once. 225 Fixing this is just not worth it. */ 226 #define IN_FROM_REG(nr,val) (((nr)<=1)?(val*2): \ 227 ((((nr)==6)||((nr)==7))?(val*6):(val*4))) 228 #define IN_TO_REG(nr,val) (((nr)<=1)?(val/2): \ 229 ((((nr)==6)||((nr)==7))?(val/6):(val/4))) 230 231 static inline u8 232 FAN_TO_REG(long rpm, int div) 233 { 234 if (rpm == 0) 235 return 255; 236 rpm = SENSORS_LIMIT(rpm, 1, 1000000); 237 return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); 238 } 239 240 #define FAN_FROM_REG(val,div) ((val) == 0 ? -1 : \ 241 ((val) == 255 ? 0 : \ 242 1350000 / ((val) * (div)))) 243 244 /* for temp1 */ 245 #define TEMP1_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \ 246 : (val)) / 1000, 0, 0xff)) 247 #define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000) 248 /* for temp2 and temp3, because they need addtional resolution */ 249 #define TEMP_ADD_FROM_REG(val1, val2) \ 250 ((((val1) & 0x80 ? (val1)-0x100 \ 251 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0)) 252 #define TEMP_ADD_TO_REG_HIGH(val) \ 253 (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \ 254 : (val)) / 1000, 0, 0xff)) 255 #define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00) 256 257 #define DIV_FROM_REG(val) (1 << (val)) 258 259 static inline u8 260 DIV_TO_REG(long val) 261 { 262 int i; 263 val = SENSORS_LIMIT(val, 1, 128) >> 1; 264 for (i = 0; i < 7; i++) { 265 if (val == 0) 266 break; 267 val >>= 1; 268 } 269 return ((u8) i); 270 } 271 272 struct w83792d_data { 273 struct device *hwmon_dev; 274 275 struct mutex update_lock; 276 char valid; /* !=0 if following fields are valid */ 277 unsigned long last_updated; /* In jiffies */ 278 279 /* array of 2 pointers to subclients */ 280 struct i2c_client *lm75[2]; 281 282 u8 in[9]; /* Register value */ 283 u8 in_max[9]; /* Register value */ 284 u8 in_min[9]; /* Register value */ 285 u16 low_bits; /* Additional resolution to voltage in6-0 */ 286 u8 fan[7]; /* Register value */ 287 u8 fan_min[7]; /* Register value */ 288 u8 temp1[3]; /* current, over, thyst */ 289 u8 temp_add[2][6]; /* Register value */ 290 u8 fan_div[7]; /* Register encoding, shifted right */ 291 u8 pwm[7]; /* We only consider the first 3 set of pwm, 292 although 792 chip has 7 set of pwm. */ 293 u8 pwmenable[3]; 294 u32 alarms; /* realtime status register encoding,combined */ 295 u8 chassis; /* Chassis status */ 296 u8 chassis_clear; /* CLR_CHS, clear chassis intrusion detection */ 297 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */ 298 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */ 299 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */ 300 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */ 301 }; 302 303 static int w83792d_probe(struct i2c_client *client, 304 const struct i2c_device_id *id); 305 static int w83792d_detect(struct i2c_client *client, int kind, 306 struct i2c_board_info *info); 307 static int w83792d_remove(struct i2c_client *client); 308 static struct w83792d_data *w83792d_update_device(struct device *dev); 309 310 #ifdef DEBUG 311 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev); 312 #endif 313 314 static void w83792d_init_client(struct i2c_client *client); 315 316 static const struct i2c_device_id w83792d_id[] = { 317 { "w83792d", w83792d }, 318 { } 319 }; 320 MODULE_DEVICE_TABLE(i2c, w83792d_id); 321 322 static struct i2c_driver w83792d_driver = { 323 .class = I2C_CLASS_HWMON, 324 .driver = { 325 .name = "w83792d", 326 }, 327 .probe = w83792d_probe, 328 .remove = w83792d_remove, 329 .id_table = w83792d_id, 330 .detect = w83792d_detect, 331 .address_data = &addr_data, 332 }; 333 334 static inline long in_count_from_reg(int nr, struct w83792d_data *data) 335 { 336 /* in7 and in8 do not have low bits, but the formula still works */ 337 return ((data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03)); 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 static inline int w83792d_read_value(struct i2c_client *client, u8 reg) 344 { 345 return i2c_smbus_read_byte_data(client, reg); 346 } 347 348 static inline int 349 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value) 350 { 351 return i2c_smbus_write_byte_data(client, reg, value); 352 } 353 354 /* following are the sysfs callback functions */ 355 static ssize_t show_in(struct device *dev, struct device_attribute *attr, 356 char *buf) 357 { 358 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 359 int nr = sensor_attr->index; 360 struct w83792d_data *data = w83792d_update_device(dev); 361 return sprintf(buf,"%ld\n", IN_FROM_REG(nr,(in_count_from_reg(nr, data)))); 362 } 363 364 #define show_in_reg(reg) \ 365 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ 366 char *buf) \ 367 { \ 368 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ 369 int nr = sensor_attr->index; \ 370 struct w83792d_data *data = w83792d_update_device(dev); \ 371 return sprintf(buf,"%ld\n", (long)(IN_FROM_REG(nr, (data->reg[nr])*4))); \ 372 } 373 374 show_in_reg(in_min); 375 show_in_reg(in_max); 376 377 #define store_in_reg(REG, reg) \ 378 static ssize_t store_in_##reg (struct device *dev, \ 379 struct device_attribute *attr, \ 380 const char *buf, size_t count) \ 381 { \ 382 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ 383 int nr = sensor_attr->index; \ 384 struct i2c_client *client = to_i2c_client(dev); \ 385 struct w83792d_data *data = i2c_get_clientdata(client); \ 386 u32 val; \ 387 \ 388 val = simple_strtoul(buf, NULL, 10); \ 389 mutex_lock(&data->update_lock); \ 390 data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \ 391 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \ 392 mutex_unlock(&data->update_lock); \ 393 \ 394 return count; \ 395 } 396 store_in_reg(MIN, min); 397 store_in_reg(MAX, max); 398 399 #define show_fan_reg(reg) \ 400 static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \ 401 char *buf) \ 402 { \ 403 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ 404 int nr = sensor_attr->index - 1; \ 405 struct w83792d_data *data = w83792d_update_device(dev); \ 406 return sprintf(buf,"%d\n", \ 407 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \ 408 } 409 410 show_fan_reg(fan); 411 show_fan_reg(fan_min); 412 413 static ssize_t 414 store_fan_min(struct device *dev, struct device_attribute *attr, 415 const char *buf, size_t count) 416 { 417 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 418 int nr = sensor_attr->index - 1; 419 struct i2c_client *client = to_i2c_client(dev); 420 struct w83792d_data *data = i2c_get_clientdata(client); 421 u32 val; 422 423 val = simple_strtoul(buf, NULL, 10); 424 mutex_lock(&data->update_lock); 425 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); 426 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], 427 data->fan_min[nr]); 428 mutex_unlock(&data->update_lock); 429 430 return count; 431 } 432 433 static ssize_t 434 show_fan_div(struct device *dev, struct device_attribute *attr, 435 char *buf) 436 { 437 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 438 int nr = sensor_attr->index; 439 struct w83792d_data *data = w83792d_update_device(dev); 440 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1])); 441 } 442 443 /* Note: we save and restore the fan minimum here, because its value is 444 determined in part by the fan divisor. This follows the principle of 445 least surprise; the user doesn't expect the fan minimum to change just 446 because the divisor changed. */ 447 static ssize_t 448 store_fan_div(struct device *dev, struct device_attribute *attr, 449 const char *buf, size_t count) 450 { 451 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 452 int nr = sensor_attr->index - 1; 453 struct i2c_client *client = to_i2c_client(dev); 454 struct w83792d_data *data = i2c_get_clientdata(client); 455 unsigned long min; 456 /*u8 reg;*/ 457 u8 fan_div_reg = 0; 458 u8 tmp_fan_div; 459 460 /* Save fan_min */ 461 mutex_lock(&data->update_lock); 462 min = FAN_FROM_REG(data->fan_min[nr], 463 DIV_FROM_REG(data->fan_div[nr])); 464 465 data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10)); 466 467 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]); 468 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8; 469 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70) 470 : ((data->fan_div[nr]) & 0x07); 471 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1], 472 fan_div_reg | tmp_fan_div); 473 474 /* Restore fan_min */ 475 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); 476 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]); 477 mutex_unlock(&data->update_lock); 478 479 return count; 480 } 481 482 /* read/write the temperature1, includes measured value and limits */ 483 484 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr, 485 char *buf) 486 { 487 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 488 int nr = sensor_attr->index; 489 struct w83792d_data *data = w83792d_update_device(dev); 490 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr])); 491 } 492 493 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr, 494 const char *buf, size_t count) 495 { 496 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 497 int nr = sensor_attr->index; 498 struct i2c_client *client = to_i2c_client(dev); 499 struct w83792d_data *data = i2c_get_clientdata(client); 500 s32 val; 501 502 val = simple_strtol(buf, NULL, 10); 503 mutex_lock(&data->update_lock); 504 data->temp1[nr] = TEMP1_TO_REG(val); 505 w83792d_write_value(client, W83792D_REG_TEMP1[nr], 506 data->temp1[nr]); 507 mutex_unlock(&data->update_lock); 508 509 return count; 510 } 511 512 /* read/write the temperature2-3, includes measured value and limits */ 513 514 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr, 515 char *buf) 516 { 517 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 518 int nr = sensor_attr->nr; 519 int index = sensor_attr->index; 520 struct w83792d_data *data = w83792d_update_device(dev); 521 return sprintf(buf,"%ld\n", 522 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index], 523 data->temp_add[nr][index+1])); 524 } 525 526 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr, 527 const char *buf, size_t count) 528 { 529 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 530 int nr = sensor_attr->nr; 531 int index = sensor_attr->index; 532 struct i2c_client *client = to_i2c_client(dev); 533 struct w83792d_data *data = i2c_get_clientdata(client); 534 s32 val; 535 536 val = simple_strtol(buf, NULL, 10); 537 mutex_lock(&data->update_lock); 538 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val); 539 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val); 540 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index], 541 data->temp_add[nr][index]); 542 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1], 543 data->temp_add[nr][index+1]); 544 mutex_unlock(&data->update_lock); 545 546 return count; 547 } 548 549 /* get reatime status of all sensors items: voltage, temp, fan */ 550 static ssize_t 551 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) 552 { 553 struct w83792d_data *data = w83792d_update_device(dev); 554 return sprintf(buf, "%d\n", data->alarms); 555 } 556 557 static ssize_t show_alarm(struct device *dev, 558 struct device_attribute *attr, char *buf) 559 { 560 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 561 int nr = sensor_attr->index; 562 struct w83792d_data *data = w83792d_update_device(dev); 563 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1); 564 } 565 566 static ssize_t 567 show_pwm(struct device *dev, struct device_attribute *attr, 568 char *buf) 569 { 570 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 571 int nr = sensor_attr->index; 572 struct w83792d_data *data = w83792d_update_device(dev); 573 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4); 574 } 575 576 static ssize_t 577 show_pwmenable(struct device *dev, struct device_attribute *attr, 578 char *buf) 579 { 580 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 581 int nr = sensor_attr->index - 1; 582 struct w83792d_data *data = w83792d_update_device(dev); 583 long pwm_enable_tmp = 1; 584 585 switch (data->pwmenable[nr]) { 586 case 0: 587 pwm_enable_tmp = 1; /* manual mode */ 588 break; 589 case 1: 590 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */ 591 break; 592 case 2: 593 pwm_enable_tmp = 2; /* Smart Fan II */ 594 break; 595 } 596 597 return sprintf(buf, "%ld\n", pwm_enable_tmp); 598 } 599 600 static ssize_t 601 store_pwm(struct device *dev, struct device_attribute *attr, 602 const char *buf, size_t count) 603 { 604 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 605 int nr = sensor_attr->index; 606 struct i2c_client *client = to_i2c_client(dev); 607 struct w83792d_data *data = i2c_get_clientdata(client); 608 u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255) >> 4; 609 610 mutex_lock(&data->update_lock); 611 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0; 612 data->pwm[nr] = val; 613 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 614 mutex_unlock(&data->update_lock); 615 616 return count; 617 } 618 619 static ssize_t 620 store_pwmenable(struct device *dev, struct device_attribute *attr, 621 const char *buf, size_t count) 622 { 623 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 624 int nr = sensor_attr->index - 1; 625 struct i2c_client *client = to_i2c_client(dev); 626 struct w83792d_data *data = i2c_get_clientdata(client); 627 u32 val; 628 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp; 629 630 val = simple_strtoul(buf, NULL, 10); 631 if (val < 1 || val > 3) 632 return -EINVAL; 633 634 mutex_lock(&data->update_lock); 635 switch (val) { 636 case 1: 637 data->pwmenable[nr] = 0; /* manual mode */ 638 break; 639 case 2: 640 data->pwmenable[nr] = 2; /* Smart Fan II */ 641 break; 642 case 3: 643 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */ 644 break; 645 } 646 cfg1_tmp = data->pwmenable[0]; 647 cfg2_tmp = (data->pwmenable[1]) << 2; 648 cfg3_tmp = (data->pwmenable[2]) << 4; 649 cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0; 650 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp; 651 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp); 652 mutex_unlock(&data->update_lock); 653 654 return count; 655 } 656 657 static ssize_t 658 show_pwm_mode(struct device *dev, struct device_attribute *attr, 659 char *buf) 660 { 661 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 662 int nr = sensor_attr->index; 663 struct w83792d_data *data = w83792d_update_device(dev); 664 return sprintf(buf, "%d\n", data->pwm[nr] >> 7); 665 } 666 667 static ssize_t 668 store_pwm_mode(struct device *dev, struct device_attribute *attr, 669 const char *buf, size_t count) 670 { 671 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 672 int nr = sensor_attr->index; 673 struct i2c_client *client = to_i2c_client(dev); 674 struct w83792d_data *data = i2c_get_clientdata(client); 675 u32 val; 676 677 val = simple_strtoul(buf, NULL, 10); 678 if (val != 0 && val != 1) 679 return -EINVAL; 680 681 mutex_lock(&data->update_lock); 682 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]); 683 if (val) { /* PWM mode */ 684 data->pwm[nr] |= 0x80; 685 } else { /* DC mode */ 686 data->pwm[nr] &= 0x7f; 687 } 688 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 689 mutex_unlock(&data->update_lock); 690 691 return count; 692 } 693 694 static ssize_t 695 show_regs_chassis(struct device *dev, struct device_attribute *attr, 696 char *buf) 697 { 698 struct w83792d_data *data = w83792d_update_device(dev); 699 return sprintf(buf, "%d\n", data->chassis); 700 } 701 702 static ssize_t 703 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf) 704 { 705 struct w83792d_data *data = w83792d_update_device(dev); 706 return sprintf(buf, "%d\n", data->chassis_clear); 707 } 708 709 static ssize_t 710 store_chassis_clear(struct device *dev, struct device_attribute *attr, 711 const char *buf, size_t count) 712 { 713 struct i2c_client *client = to_i2c_client(dev); 714 struct w83792d_data *data = i2c_get_clientdata(client); 715 u32 val; 716 u8 temp1 = 0, temp2 = 0; 717 718 val = simple_strtoul(buf, NULL, 10); 719 mutex_lock(&data->update_lock); 720 data->chassis_clear = SENSORS_LIMIT(val, 0 ,1); 721 temp1 = ((data->chassis_clear) << 7) & 0x80; 722 temp2 = w83792d_read_value(client, 723 W83792D_REG_CHASSIS_CLR) & 0x7f; 724 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2); 725 mutex_unlock(&data->update_lock); 726 727 return count; 728 } 729 730 /* For Smart Fan I / Thermal Cruise */ 731 static ssize_t 732 show_thermal_cruise(struct device *dev, struct device_attribute *attr, 733 char *buf) 734 { 735 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 736 int nr = sensor_attr->index; 737 struct w83792d_data *data = w83792d_update_device(dev); 738 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]); 739 } 740 741 static ssize_t 742 store_thermal_cruise(struct device *dev, struct device_attribute *attr, 743 const char *buf, size_t count) 744 { 745 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 746 int nr = sensor_attr->index - 1; 747 struct i2c_client *client = to_i2c_client(dev); 748 struct w83792d_data *data = i2c_get_clientdata(client); 749 u32 val; 750 u8 target_tmp=0, target_mask=0; 751 752 val = simple_strtoul(buf, NULL, 10); 753 target_tmp = val; 754 target_tmp = target_tmp & 0x7f; 755 mutex_lock(&data->update_lock); 756 target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80; 757 data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255); 758 w83792d_write_value(client, W83792D_REG_THERMAL[nr], 759 (data->thermal_cruise[nr]) | target_mask); 760 mutex_unlock(&data->update_lock); 761 762 return count; 763 } 764 765 /* For Smart Fan I/Thermal Cruise and Smart Fan II */ 766 static ssize_t 767 show_tolerance(struct device *dev, struct device_attribute *attr, 768 char *buf) 769 { 770 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 771 int nr = sensor_attr->index; 772 struct w83792d_data *data = w83792d_update_device(dev); 773 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]); 774 } 775 776 static ssize_t 777 store_tolerance(struct device *dev, struct device_attribute *attr, 778 const char *buf, size_t count) 779 { 780 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 781 int nr = sensor_attr->index - 1; 782 struct i2c_client *client = to_i2c_client(dev); 783 struct w83792d_data *data = i2c_get_clientdata(client); 784 u32 val; 785 u8 tol_tmp, tol_mask; 786 787 val = simple_strtoul(buf, NULL, 10); 788 mutex_lock(&data->update_lock); 789 tol_mask = w83792d_read_value(client, 790 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0); 791 tol_tmp = SENSORS_LIMIT(val, 0, 15); 792 tol_tmp &= 0x0f; 793 data->tolerance[nr] = tol_tmp; 794 if (nr == 1) { 795 tol_tmp <<= 4; 796 } 797 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr], 798 tol_mask | tol_tmp); 799 mutex_unlock(&data->update_lock); 800 801 return count; 802 } 803 804 /* For Smart Fan II */ 805 static ssize_t 806 show_sf2_point(struct device *dev, struct device_attribute *attr, 807 char *buf) 808 { 809 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 810 int nr = sensor_attr->nr; 811 int index = sensor_attr->index; 812 struct w83792d_data *data = w83792d_update_device(dev); 813 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]); 814 } 815 816 static ssize_t 817 store_sf2_point(struct device *dev, struct device_attribute *attr, 818 const char *buf, size_t count) 819 { 820 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 821 int nr = sensor_attr->nr - 1; 822 int index = sensor_attr->index - 1; 823 struct i2c_client *client = to_i2c_client(dev); 824 struct w83792d_data *data = i2c_get_clientdata(client); 825 u32 val; 826 u8 mask_tmp = 0; 827 828 val = simple_strtoul(buf, NULL, 10); 829 mutex_lock(&data->update_lock); 830 data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127); 831 mask_tmp = w83792d_read_value(client, 832 W83792D_REG_POINTS[index][nr]) & 0x80; 833 w83792d_write_value(client, W83792D_REG_POINTS[index][nr], 834 mask_tmp|data->sf2_points[index][nr]); 835 mutex_unlock(&data->update_lock); 836 837 return count; 838 } 839 840 static ssize_t 841 show_sf2_level(struct device *dev, struct device_attribute *attr, 842 char *buf) 843 { 844 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 845 int nr = sensor_attr->nr; 846 int index = sensor_attr->index; 847 struct w83792d_data *data = w83792d_update_device(dev); 848 return sprintf(buf, "%d\n", 849 (((data->sf2_levels[index-1][nr]) * 100) / 15)); 850 } 851 852 static ssize_t 853 store_sf2_level(struct device *dev, struct device_attribute *attr, 854 const char *buf, size_t count) 855 { 856 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 857 int nr = sensor_attr->nr; 858 int index = sensor_attr->index - 1; 859 struct i2c_client *client = to_i2c_client(dev); 860 struct w83792d_data *data = i2c_get_clientdata(client); 861 u32 val; 862 u8 mask_tmp=0, level_tmp=0; 863 864 val = simple_strtoul(buf, NULL, 10); 865 mutex_lock(&data->update_lock); 866 data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15); 867 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr]) 868 & ((nr==3) ? 0xf0 : 0x0f); 869 if (nr==3) { 870 level_tmp = data->sf2_levels[index][nr]; 871 } else { 872 level_tmp = data->sf2_levels[index][nr] << 4; 873 } 874 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp); 875 mutex_unlock(&data->update_lock); 876 877 return count; 878 } 879 880 881 static int 882 w83792d_detect_subclients(struct i2c_client *new_client) 883 { 884 int i, id, err; 885 int address = new_client->addr; 886 u8 val; 887 struct i2c_adapter *adapter = new_client->adapter; 888 struct w83792d_data *data = i2c_get_clientdata(new_client); 889 890 id = i2c_adapter_id(adapter); 891 if (force_subclients[0] == id && force_subclients[1] == address) { 892 for (i = 2; i <= 3; i++) { 893 if (force_subclients[i] < 0x48 || 894 force_subclients[i] > 0x4f) { 895 dev_err(&new_client->dev, "invalid subclient " 896 "address %d; must be 0x48-0x4f\n", 897 force_subclients[i]); 898 err = -ENODEV; 899 goto ERROR_SC_0; 900 } 901 } 902 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR, 903 (force_subclients[2] & 0x07) | 904 ((force_subclients[3] & 0x07) << 4)); 905 } 906 907 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR); 908 if (!(val & 0x08)) { 909 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7)); 910 } 911 if (!(val & 0x80)) { 912 if ((data->lm75[0] != NULL) && 913 ((val & 0x7) == ((val >> 4) & 0x7))) { 914 dev_err(&new_client->dev, "duplicate addresses 0x%x, " 915 "use force_subclient\n", data->lm75[0]->addr); 916 err = -ENODEV; 917 goto ERROR_SC_1; 918 } 919 data->lm75[1] = i2c_new_dummy(adapter, 920 0x48 + ((val >> 4) & 0x7)); 921 } 922 923 return 0; 924 925 /* Undo inits in case of errors */ 926 927 ERROR_SC_1: 928 if (data->lm75[0] != NULL) 929 i2c_unregister_device(data->lm75[0]); 930 ERROR_SC_0: 931 return err; 932 } 933 934 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); 935 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); 936 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); 937 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); 938 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4); 939 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5); 940 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6); 941 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7); 942 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8); 943 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO, 944 show_in_min, store_in_min, 0); 945 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, 946 show_in_min, store_in_min, 1); 947 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, 948 show_in_min, store_in_min, 2); 949 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO, 950 show_in_min, store_in_min, 3); 951 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO, 952 show_in_min, store_in_min, 4); 953 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO, 954 show_in_min, store_in_min, 5); 955 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO, 956 show_in_min, store_in_min, 6); 957 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO, 958 show_in_min, store_in_min, 7); 959 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO, 960 show_in_min, store_in_min, 8); 961 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO, 962 show_in_max, store_in_max, 0); 963 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, 964 show_in_max, store_in_max, 1); 965 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, 966 show_in_max, store_in_max, 2); 967 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO, 968 show_in_max, store_in_max, 3); 969 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO, 970 show_in_max, store_in_max, 4); 971 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO, 972 show_in_max, store_in_max, 5); 973 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO, 974 show_in_max, store_in_max, 6); 975 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO, 976 show_in_max, store_in_max, 7); 977 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO, 978 show_in_max, store_in_max, 8); 979 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0); 980 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0); 981 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0); 982 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, 983 show_temp1, store_temp1, 0, 1); 984 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23, 985 store_temp23, 0, 2); 986 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23, 987 store_temp23, 1, 2); 988 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, 989 show_temp1, store_temp1, 0, 2); 990 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, 991 show_temp23, store_temp23, 0, 4); 992 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, 993 show_temp23, store_temp23, 1, 4); 994 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); 995 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); 996 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); 997 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2); 998 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3); 999 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4); 1000 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5); 1001 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6); 1002 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7); 1003 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8); 1004 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9); 1005 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10); 1006 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11); 1007 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12); 1008 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15); 1009 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19); 1010 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20); 1011 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21); 1012 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22); 1013 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23); 1014 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL); 1015 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR, 1016 show_chassis_clear, store_chassis_clear); 1017 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0); 1018 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1); 1019 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2); 1020 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, 1021 show_pwmenable, store_pwmenable, 1); 1022 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, 1023 show_pwmenable, store_pwmenable, 2); 1024 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, 1025 show_pwmenable, store_pwmenable, 3); 1026 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, 1027 show_pwm_mode, store_pwm_mode, 0); 1028 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, 1029 show_pwm_mode, store_pwm_mode, 1); 1030 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, 1031 show_pwm_mode, store_pwm_mode, 2); 1032 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO, 1033 show_tolerance, store_tolerance, 1); 1034 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO, 1035 show_tolerance, store_tolerance, 2); 1036 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO, 1037 show_tolerance, store_tolerance, 3); 1038 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO, 1039 show_thermal_cruise, store_thermal_cruise, 1); 1040 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO, 1041 show_thermal_cruise, store_thermal_cruise, 2); 1042 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO, 1043 show_thermal_cruise, store_thermal_cruise, 3); 1044 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR, 1045 show_sf2_point, store_sf2_point, 1, 1); 1046 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR, 1047 show_sf2_point, store_sf2_point, 2, 1); 1048 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR, 1049 show_sf2_point, store_sf2_point, 3, 1); 1050 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR, 1051 show_sf2_point, store_sf2_point, 4, 1); 1052 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR, 1053 show_sf2_point, store_sf2_point, 1, 2); 1054 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR, 1055 show_sf2_point, store_sf2_point, 2, 2); 1056 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR, 1057 show_sf2_point, store_sf2_point, 3, 2); 1058 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR, 1059 show_sf2_point, store_sf2_point, 4, 2); 1060 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR, 1061 show_sf2_point, store_sf2_point, 1, 3); 1062 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR, 1063 show_sf2_point, store_sf2_point, 2, 3); 1064 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR, 1065 show_sf2_point, store_sf2_point, 3, 3); 1066 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR, 1067 show_sf2_point, store_sf2_point, 4, 3); 1068 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR, 1069 show_sf2_level, store_sf2_level, 1, 1); 1070 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR, 1071 show_sf2_level, store_sf2_level, 2, 1); 1072 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR, 1073 show_sf2_level, store_sf2_level, 3, 1); 1074 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR, 1075 show_sf2_level, store_sf2_level, 1, 2); 1076 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR, 1077 show_sf2_level, store_sf2_level, 2, 2); 1078 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR, 1079 show_sf2_level, store_sf2_level, 3, 2); 1080 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR, 1081 show_sf2_level, store_sf2_level, 1, 3); 1082 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR, 1083 show_sf2_level, store_sf2_level, 2, 3); 1084 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR, 1085 show_sf2_level, store_sf2_level, 3, 3); 1086 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1); 1087 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2); 1088 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3); 1089 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4); 1090 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5); 1091 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6); 1092 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7); 1093 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, 1094 show_fan_min, store_fan_min, 1); 1095 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, 1096 show_fan_min, store_fan_min, 2); 1097 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, 1098 show_fan_min, store_fan_min, 3); 1099 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, 1100 show_fan_min, store_fan_min, 4); 1101 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO, 1102 show_fan_min, store_fan_min, 5); 1103 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO, 1104 show_fan_min, store_fan_min, 6); 1105 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO, 1106 show_fan_min, store_fan_min, 7); 1107 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO, 1108 show_fan_div, store_fan_div, 1); 1109 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO, 1110 show_fan_div, store_fan_div, 2); 1111 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO, 1112 show_fan_div, store_fan_div, 3); 1113 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO, 1114 show_fan_div, store_fan_div, 4); 1115 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO, 1116 show_fan_div, store_fan_div, 5); 1117 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO, 1118 show_fan_div, store_fan_div, 6); 1119 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO, 1120 show_fan_div, store_fan_div, 7); 1121 1122 static struct attribute *w83792d_attributes_fan[4][5] = { 1123 { 1124 &sensor_dev_attr_fan4_input.dev_attr.attr, 1125 &sensor_dev_attr_fan4_min.dev_attr.attr, 1126 &sensor_dev_attr_fan4_div.dev_attr.attr, 1127 &sensor_dev_attr_fan4_alarm.dev_attr.attr, 1128 NULL 1129 }, { 1130 &sensor_dev_attr_fan5_input.dev_attr.attr, 1131 &sensor_dev_attr_fan5_min.dev_attr.attr, 1132 &sensor_dev_attr_fan5_div.dev_attr.attr, 1133 &sensor_dev_attr_fan5_alarm.dev_attr.attr, 1134 NULL 1135 }, { 1136 &sensor_dev_attr_fan6_input.dev_attr.attr, 1137 &sensor_dev_attr_fan6_min.dev_attr.attr, 1138 &sensor_dev_attr_fan6_div.dev_attr.attr, 1139 &sensor_dev_attr_fan6_alarm.dev_attr.attr, 1140 NULL 1141 }, { 1142 &sensor_dev_attr_fan7_input.dev_attr.attr, 1143 &sensor_dev_attr_fan7_min.dev_attr.attr, 1144 &sensor_dev_attr_fan7_div.dev_attr.attr, 1145 &sensor_dev_attr_fan7_alarm.dev_attr.attr, 1146 NULL 1147 } 1148 }; 1149 1150 static const struct attribute_group w83792d_group_fan[4] = { 1151 { .attrs = w83792d_attributes_fan[0] }, 1152 { .attrs = w83792d_attributes_fan[1] }, 1153 { .attrs = w83792d_attributes_fan[2] }, 1154 { .attrs = w83792d_attributes_fan[3] }, 1155 }; 1156 1157 static struct attribute *w83792d_attributes[] = { 1158 &sensor_dev_attr_in0_input.dev_attr.attr, 1159 &sensor_dev_attr_in0_max.dev_attr.attr, 1160 &sensor_dev_attr_in0_min.dev_attr.attr, 1161 &sensor_dev_attr_in1_input.dev_attr.attr, 1162 &sensor_dev_attr_in1_max.dev_attr.attr, 1163 &sensor_dev_attr_in1_min.dev_attr.attr, 1164 &sensor_dev_attr_in2_input.dev_attr.attr, 1165 &sensor_dev_attr_in2_max.dev_attr.attr, 1166 &sensor_dev_attr_in2_min.dev_attr.attr, 1167 &sensor_dev_attr_in3_input.dev_attr.attr, 1168 &sensor_dev_attr_in3_max.dev_attr.attr, 1169 &sensor_dev_attr_in3_min.dev_attr.attr, 1170 &sensor_dev_attr_in4_input.dev_attr.attr, 1171 &sensor_dev_attr_in4_max.dev_attr.attr, 1172 &sensor_dev_attr_in4_min.dev_attr.attr, 1173 &sensor_dev_attr_in5_input.dev_attr.attr, 1174 &sensor_dev_attr_in5_max.dev_attr.attr, 1175 &sensor_dev_attr_in5_min.dev_attr.attr, 1176 &sensor_dev_attr_in6_input.dev_attr.attr, 1177 &sensor_dev_attr_in6_max.dev_attr.attr, 1178 &sensor_dev_attr_in6_min.dev_attr.attr, 1179 &sensor_dev_attr_in7_input.dev_attr.attr, 1180 &sensor_dev_attr_in7_max.dev_attr.attr, 1181 &sensor_dev_attr_in7_min.dev_attr.attr, 1182 &sensor_dev_attr_in8_input.dev_attr.attr, 1183 &sensor_dev_attr_in8_max.dev_attr.attr, 1184 &sensor_dev_attr_in8_min.dev_attr.attr, 1185 &sensor_dev_attr_in0_alarm.dev_attr.attr, 1186 &sensor_dev_attr_in1_alarm.dev_attr.attr, 1187 &sensor_dev_attr_in2_alarm.dev_attr.attr, 1188 &sensor_dev_attr_in3_alarm.dev_attr.attr, 1189 &sensor_dev_attr_in4_alarm.dev_attr.attr, 1190 &sensor_dev_attr_in5_alarm.dev_attr.attr, 1191 &sensor_dev_attr_in6_alarm.dev_attr.attr, 1192 &sensor_dev_attr_in7_alarm.dev_attr.attr, 1193 &sensor_dev_attr_in8_alarm.dev_attr.attr, 1194 &sensor_dev_attr_temp1_input.dev_attr.attr, 1195 &sensor_dev_attr_temp1_max.dev_attr.attr, 1196 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, 1197 &sensor_dev_attr_temp2_input.dev_attr.attr, 1198 &sensor_dev_attr_temp2_max.dev_attr.attr, 1199 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, 1200 &sensor_dev_attr_temp3_input.dev_attr.attr, 1201 &sensor_dev_attr_temp3_max.dev_attr.attr, 1202 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, 1203 &sensor_dev_attr_temp1_alarm.dev_attr.attr, 1204 &sensor_dev_attr_temp2_alarm.dev_attr.attr, 1205 &sensor_dev_attr_temp3_alarm.dev_attr.attr, 1206 &sensor_dev_attr_pwm1.dev_attr.attr, 1207 &sensor_dev_attr_pwm1_mode.dev_attr.attr, 1208 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 1209 &sensor_dev_attr_pwm2.dev_attr.attr, 1210 &sensor_dev_attr_pwm2_mode.dev_attr.attr, 1211 &sensor_dev_attr_pwm2_enable.dev_attr.attr, 1212 &sensor_dev_attr_pwm3.dev_attr.attr, 1213 &sensor_dev_attr_pwm3_mode.dev_attr.attr, 1214 &sensor_dev_attr_pwm3_enable.dev_attr.attr, 1215 &dev_attr_alarms.attr, 1216 &dev_attr_chassis.attr, 1217 &dev_attr_chassis_clear.attr, 1218 &sensor_dev_attr_tolerance1.dev_attr.attr, 1219 &sensor_dev_attr_thermal_cruise1.dev_attr.attr, 1220 &sensor_dev_attr_tolerance2.dev_attr.attr, 1221 &sensor_dev_attr_thermal_cruise2.dev_attr.attr, 1222 &sensor_dev_attr_tolerance3.dev_attr.attr, 1223 &sensor_dev_attr_thermal_cruise3.dev_attr.attr, 1224 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr, 1225 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr, 1226 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr, 1227 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr, 1228 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr, 1229 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr, 1230 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr, 1231 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr, 1232 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr, 1233 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr, 1234 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr, 1235 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr, 1236 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr, 1237 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr, 1238 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr, 1239 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr, 1240 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr, 1241 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr, 1242 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr, 1243 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr, 1244 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr, 1245 &sensor_dev_attr_fan1_input.dev_attr.attr, 1246 &sensor_dev_attr_fan1_min.dev_attr.attr, 1247 &sensor_dev_attr_fan1_div.dev_attr.attr, 1248 &sensor_dev_attr_fan1_alarm.dev_attr.attr, 1249 &sensor_dev_attr_fan2_input.dev_attr.attr, 1250 &sensor_dev_attr_fan2_min.dev_attr.attr, 1251 &sensor_dev_attr_fan2_div.dev_attr.attr, 1252 &sensor_dev_attr_fan2_alarm.dev_attr.attr, 1253 &sensor_dev_attr_fan3_input.dev_attr.attr, 1254 &sensor_dev_attr_fan3_min.dev_attr.attr, 1255 &sensor_dev_attr_fan3_div.dev_attr.attr, 1256 &sensor_dev_attr_fan3_alarm.dev_attr.attr, 1257 NULL 1258 }; 1259 1260 static const struct attribute_group w83792d_group = { 1261 .attrs = w83792d_attributes, 1262 }; 1263 1264 /* Return 0 if detection is successful, -ENODEV otherwise */ 1265 static int 1266 w83792d_detect(struct i2c_client *client, int kind, struct i2c_board_info *info) 1267 { 1268 struct i2c_adapter *adapter = client->adapter; 1269 int val1, val2; 1270 unsigned short address = client->addr; 1271 1272 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { 1273 return -ENODEV; 1274 } 1275 1276 /* The w83792d may be stuck in some other bank than bank 0. This may 1277 make reading other information impossible. Specify a force=... or 1278 force_*=... parameter, and the Winbond will be reset to the right 1279 bank. */ 1280 if (kind < 0) { 1281 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) { 1282 return -ENODEV; 1283 } 1284 val1 = w83792d_read_value(client, W83792D_REG_BANK); 1285 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1286 /* Check for Winbond ID if in bank 0 */ 1287 if (!(val1 & 0x07)) { /* is Bank0 */ 1288 if (((!(val1 & 0x80)) && (val2 != 0xa3)) || 1289 ((val1 & 0x80) && (val2 != 0x5c))) { 1290 return -ENODEV; 1291 } 1292 } 1293 /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR 1294 should match */ 1295 if (w83792d_read_value(client, 1296 W83792D_REG_I2C_ADDR) != address) { 1297 return -ENODEV; 1298 } 1299 } 1300 1301 /* We have either had a force parameter, or we have already detected the 1302 Winbond. Put it now into bank 0 and Vendor ID High Byte */ 1303 w83792d_write_value(client, 1304 W83792D_REG_BANK, 1305 (w83792d_read_value(client, 1306 W83792D_REG_BANK) & 0x78) | 0x80); 1307 1308 /* Determine the chip type. */ 1309 if (kind <= 0) { 1310 /* get vendor ID */ 1311 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1312 if (val2 != 0x5c) { /* the vendor is NOT Winbond */ 1313 return -ENODEV; 1314 } 1315 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID); 1316 if (val1 == 0x7a) { 1317 kind = w83792d; 1318 } else { 1319 if (kind == 0) 1320 dev_warn(&adapter->dev, 1321 "w83792d: Ignoring 'force' parameter for" 1322 " unknown chip at adapter %d, address" 1323 " 0x%02x\n", i2c_adapter_id(adapter), 1324 address); 1325 return -ENODEV; 1326 } 1327 } 1328 1329 strlcpy(info->type, "w83792d", I2C_NAME_SIZE); 1330 1331 return 0; 1332 } 1333 1334 static int 1335 w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id) 1336 { 1337 struct w83792d_data *data; 1338 struct device *dev = &client->dev; 1339 int i, val1, err; 1340 1341 data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL); 1342 if (!data) { 1343 err = -ENOMEM; 1344 goto ERROR0; 1345 } 1346 1347 i2c_set_clientdata(client, data); 1348 data->valid = 0; 1349 mutex_init(&data->update_lock); 1350 1351 err = w83792d_detect_subclients(client); 1352 if (err) 1353 goto ERROR1; 1354 1355 /* Initialize the chip */ 1356 w83792d_init_client(client); 1357 1358 /* A few vars need to be filled upon startup */ 1359 for (i = 0; i < 7; i++) { 1360 data->fan_min[i] = w83792d_read_value(client, 1361 W83792D_REG_FAN_MIN[i]); 1362 } 1363 1364 /* Register sysfs hooks */ 1365 if ((err = sysfs_create_group(&dev->kobj, &w83792d_group))) 1366 goto ERROR3; 1367 1368 /* Read GPIO enable register to check if pins for fan 4,5 are used as 1369 GPIO */ 1370 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN); 1371 1372 if (!(val1 & 0x40)) 1373 if ((err = sysfs_create_group(&dev->kobj, 1374 &w83792d_group_fan[0]))) 1375 goto exit_remove_files; 1376 1377 if (!(val1 & 0x20)) 1378 if ((err = sysfs_create_group(&dev->kobj, 1379 &w83792d_group_fan[1]))) 1380 goto exit_remove_files; 1381 1382 val1 = w83792d_read_value(client, W83792D_REG_PIN); 1383 if (val1 & 0x40) 1384 if ((err = sysfs_create_group(&dev->kobj, 1385 &w83792d_group_fan[2]))) 1386 goto exit_remove_files; 1387 1388 if (val1 & 0x04) 1389 if ((err = sysfs_create_group(&dev->kobj, 1390 &w83792d_group_fan[3]))) 1391 goto exit_remove_files; 1392 1393 data->hwmon_dev = hwmon_device_register(dev); 1394 if (IS_ERR(data->hwmon_dev)) { 1395 err = PTR_ERR(data->hwmon_dev); 1396 goto exit_remove_files; 1397 } 1398 1399 return 0; 1400 1401 exit_remove_files: 1402 sysfs_remove_group(&dev->kobj, &w83792d_group); 1403 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1404 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]); 1405 ERROR3: 1406 if (data->lm75[0] != NULL) 1407 i2c_unregister_device(data->lm75[0]); 1408 if (data->lm75[1] != NULL) 1409 i2c_unregister_device(data->lm75[1]); 1410 ERROR1: 1411 kfree(data); 1412 ERROR0: 1413 return err; 1414 } 1415 1416 static int 1417 w83792d_remove(struct i2c_client *client) 1418 { 1419 struct w83792d_data *data = i2c_get_clientdata(client); 1420 int i; 1421 1422 hwmon_device_unregister(data->hwmon_dev); 1423 sysfs_remove_group(&client->dev.kobj, &w83792d_group); 1424 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1425 sysfs_remove_group(&client->dev.kobj, 1426 &w83792d_group_fan[i]); 1427 1428 if (data->lm75[0] != NULL) 1429 i2c_unregister_device(data->lm75[0]); 1430 if (data->lm75[1] != NULL) 1431 i2c_unregister_device(data->lm75[1]); 1432 1433 kfree(data); 1434 return 0; 1435 } 1436 1437 static void 1438 w83792d_init_client(struct i2c_client *client) 1439 { 1440 u8 temp2_cfg, temp3_cfg, vid_in_b; 1441 1442 if (init) { 1443 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80); 1444 } 1445 /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0): 1446 W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of 1447 vin0/vin1 can be modified by user; 1448 W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of 1449 vin0/vin1 auto-updated, can NOT be modified by user. */ 1450 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B); 1451 w83792d_write_value(client, W83792D_REG_VID_IN_B, 1452 vid_in_b & 0xbf); 1453 1454 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG); 1455 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG); 1456 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG, 1457 temp2_cfg & 0xe6); 1458 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG, 1459 temp3_cfg & 0xe6); 1460 1461 /* Start monitoring */ 1462 w83792d_write_value(client, W83792D_REG_CONFIG, 1463 (w83792d_read_value(client, 1464 W83792D_REG_CONFIG) & 0xf7) 1465 | 0x01); 1466 } 1467 1468 static struct w83792d_data *w83792d_update_device(struct device *dev) 1469 { 1470 struct i2c_client *client = to_i2c_client(dev); 1471 struct w83792d_data *data = i2c_get_clientdata(client); 1472 int i, j; 1473 u8 reg_array_tmp[4], reg_tmp; 1474 1475 mutex_lock(&data->update_lock); 1476 1477 if (time_after 1478 (jiffies - data->last_updated, (unsigned long) (HZ * 3)) 1479 || time_before(jiffies, data->last_updated) || !data->valid) { 1480 dev_dbg(dev, "Starting device update\n"); 1481 1482 /* Update the voltages measured value and limits */ 1483 for (i = 0; i < 9; i++) { 1484 data->in[i] = w83792d_read_value(client, 1485 W83792D_REG_IN[i]); 1486 data->in_max[i] = w83792d_read_value(client, 1487 W83792D_REG_IN_MAX[i]); 1488 data->in_min[i] = w83792d_read_value(client, 1489 W83792D_REG_IN_MIN[i]); 1490 } 1491 data->low_bits = w83792d_read_value(client, 1492 W83792D_REG_LOW_BITS1) + 1493 (w83792d_read_value(client, 1494 W83792D_REG_LOW_BITS2) << 8); 1495 for (i = 0; i < 7; i++) { 1496 /* Update the Fan measured value and limits */ 1497 data->fan[i] = w83792d_read_value(client, 1498 W83792D_REG_FAN[i]); 1499 data->fan_min[i] = w83792d_read_value(client, 1500 W83792D_REG_FAN_MIN[i]); 1501 /* Update the PWM/DC Value and PWM/DC flag */ 1502 data->pwm[i] = w83792d_read_value(client, 1503 W83792D_REG_PWM[i]); 1504 } 1505 1506 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG); 1507 data->pwmenable[0] = reg_tmp & 0x03; 1508 data->pwmenable[1] = (reg_tmp>>2) & 0x03; 1509 data->pwmenable[2] = (reg_tmp>>4) & 0x03; 1510 1511 for (i = 0; i < 3; i++) { 1512 data->temp1[i] = w83792d_read_value(client, 1513 W83792D_REG_TEMP1[i]); 1514 } 1515 for (i = 0; i < 2; i++) { 1516 for (j = 0; j < 6; j++) { 1517 data->temp_add[i][j] = w83792d_read_value( 1518 client,W83792D_REG_TEMP_ADD[i][j]); 1519 } 1520 } 1521 1522 /* Update the Fan Divisor */ 1523 for (i = 0; i < 4; i++) { 1524 reg_array_tmp[i] = w83792d_read_value(client, 1525 W83792D_REG_FAN_DIV[i]); 1526 } 1527 data->fan_div[0] = reg_array_tmp[0] & 0x07; 1528 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07; 1529 data->fan_div[2] = reg_array_tmp[1] & 0x07; 1530 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07; 1531 data->fan_div[4] = reg_array_tmp[2] & 0x07; 1532 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07; 1533 data->fan_div[6] = reg_array_tmp[3] & 0x07; 1534 1535 /* Update the realtime status */ 1536 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) + 1537 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) + 1538 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16); 1539 1540 /* Update CaseOpen status and it's CLR_CHS. */ 1541 data->chassis = (w83792d_read_value(client, 1542 W83792D_REG_CHASSIS) >> 5) & 0x01; 1543 data->chassis_clear = (w83792d_read_value(client, 1544 W83792D_REG_CHASSIS_CLR) >> 7) & 0x01; 1545 1546 /* Update Thermal Cruise/Smart Fan I target value */ 1547 for (i = 0; i < 3; i++) { 1548 data->thermal_cruise[i] = 1549 w83792d_read_value(client, 1550 W83792D_REG_THERMAL[i]) & 0x7f; 1551 } 1552 1553 /* Update Smart Fan I/II tolerance */ 1554 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]); 1555 data->tolerance[0] = reg_tmp & 0x0f; 1556 data->tolerance[1] = (reg_tmp >> 4) & 0x0f; 1557 data->tolerance[2] = w83792d_read_value(client, 1558 W83792D_REG_TOLERANCE[2]) & 0x0f; 1559 1560 /* Update Smart Fan II temperature points */ 1561 for (i = 0; i < 3; i++) { 1562 for (j = 0; j < 4; j++) { 1563 data->sf2_points[i][j] = w83792d_read_value( 1564 client,W83792D_REG_POINTS[i][j]) & 0x7f; 1565 } 1566 } 1567 1568 /* Update Smart Fan II duty cycle levels */ 1569 for (i = 0; i < 3; i++) { 1570 reg_tmp = w83792d_read_value(client, 1571 W83792D_REG_LEVELS[i][0]); 1572 data->sf2_levels[i][0] = reg_tmp & 0x0f; 1573 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f; 1574 reg_tmp = w83792d_read_value(client, 1575 W83792D_REG_LEVELS[i][2]); 1576 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f; 1577 data->sf2_levels[i][3] = reg_tmp & 0x0f; 1578 } 1579 1580 data->last_updated = jiffies; 1581 data->valid = 1; 1582 } 1583 1584 mutex_unlock(&data->update_lock); 1585 1586 #ifdef DEBUG 1587 w83792d_print_debug(data, dev); 1588 #endif 1589 1590 return data; 1591 } 1592 1593 #ifdef DEBUG 1594 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev) 1595 { 1596 int i=0, j=0; 1597 dev_dbg(dev, "==========The following is the debug message...========\n"); 1598 dev_dbg(dev, "9 set of Voltages: =====>\n"); 1599 for (i=0; i<9; i++) { 1600 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]); 1601 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]); 1602 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]); 1603 } 1604 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff); 1605 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8); 1606 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n"); 1607 for (i=0; i<7; i++) { 1608 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]); 1609 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]); 1610 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]); 1611 } 1612 dev_dbg(dev, "3 set of Temperatures: =====>\n"); 1613 for (i=0; i<3; i++) { 1614 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]); 1615 } 1616 1617 for (i=0; i<2; i++) { 1618 for (j=0; j<6; j++) { 1619 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j, 1620 data->temp_add[i][j]); 1621 } 1622 } 1623 1624 for (i=0; i<7; i++) { 1625 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]); 1626 } 1627 dev_dbg(dev, "==========End of the debug message...==================\n"); 1628 dev_dbg(dev, "\n"); 1629 } 1630 #endif 1631 1632 static int __init 1633 sensors_w83792d_init(void) 1634 { 1635 return i2c_add_driver(&w83792d_driver); 1636 } 1637 1638 static void __exit 1639 sensors_w83792d_exit(void) 1640 { 1641 i2c_del_driver(&w83792d_driver); 1642 } 1643 1644 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>"); 1645 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6"); 1646 MODULE_LICENSE("GPL"); 1647 1648 module_init(sensors_w83792d_init); 1649 module_exit(sensors_w83792d_exit); 1650 1651