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 I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: " 55 "{bus, clientaddr, subclientaddr1, subclientaddr2}"); 56 57 static int init; 58 module_param(init, bool, 0); 59 MODULE_PARM_DESC(init, "Set to one to force chip initialization"); 60 61 /* The W83792D registers */ 62 static const u8 W83792D_REG_IN[9] = { 63 0x20, /* Vcore A in DataSheet */ 64 0x21, /* Vcore B in DataSheet */ 65 0x22, /* VIN0 in DataSheet */ 66 0x23, /* VIN1 in DataSheet */ 67 0x24, /* VIN2 in DataSheet */ 68 0x25, /* VIN3 in DataSheet */ 69 0x26, /* 5VCC in DataSheet */ 70 0xB0, /* 5VSB in DataSheet */ 71 0xB1 /* VBAT in DataSheet */ 72 }; 73 #define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */ 74 #define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */ 75 static const u8 W83792D_REG_IN_MAX[9] = { 76 0x2B, /* Vcore A High Limit in DataSheet */ 77 0x2D, /* Vcore B High Limit in DataSheet */ 78 0x2F, /* VIN0 High Limit in DataSheet */ 79 0x31, /* VIN1 High Limit in DataSheet */ 80 0x33, /* VIN2 High Limit in DataSheet */ 81 0x35, /* VIN3 High Limit in DataSheet */ 82 0x37, /* 5VCC High Limit in DataSheet */ 83 0xB4, /* 5VSB High Limit in DataSheet */ 84 0xB6 /* VBAT High Limit in DataSheet */ 85 }; 86 static const u8 W83792D_REG_IN_MIN[9] = { 87 0x2C, /* Vcore A Low Limit in DataSheet */ 88 0x2E, /* Vcore B Low Limit in DataSheet */ 89 0x30, /* VIN0 Low Limit in DataSheet */ 90 0x32, /* VIN1 Low Limit in DataSheet */ 91 0x34, /* VIN2 Low Limit in DataSheet */ 92 0x36, /* VIN3 Low Limit in DataSheet */ 93 0x38, /* 5VCC Low Limit in DataSheet */ 94 0xB5, /* 5VSB Low Limit in DataSheet */ 95 0xB7 /* VBAT Low Limit in DataSheet */ 96 }; 97 static const u8 W83792D_REG_FAN[7] = { 98 0x28, /* FAN 1 Count in DataSheet */ 99 0x29, /* FAN 2 Count in DataSheet */ 100 0x2A, /* FAN 3 Count in DataSheet */ 101 0xB8, /* FAN 4 Count in DataSheet */ 102 0xB9, /* FAN 5 Count in DataSheet */ 103 0xBA, /* FAN 6 Count in DataSheet */ 104 0xBE /* FAN 7 Count in DataSheet */ 105 }; 106 static const u8 W83792D_REG_FAN_MIN[7] = { 107 0x3B, /* FAN 1 Count Low Limit in DataSheet */ 108 0x3C, /* FAN 2 Count Low Limit in DataSheet */ 109 0x3D, /* FAN 3 Count Low Limit in DataSheet */ 110 0xBB, /* FAN 4 Count Low Limit in DataSheet */ 111 0xBC, /* FAN 5 Count Low Limit in DataSheet */ 112 0xBD, /* FAN 6 Count Low Limit in DataSheet */ 113 0xBF /* FAN 7 Count Low Limit in DataSheet */ 114 }; 115 #define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */ 116 static const u8 W83792D_REG_FAN_DIV[4] = { 117 0x47, /* contains FAN2 and FAN1 Divisor */ 118 0x5B, /* contains FAN4 and FAN3 Divisor */ 119 0x5C, /* contains FAN6 and FAN5 Divisor */ 120 0x9E /* contains FAN7 Divisor. */ 121 }; 122 static const u8 W83792D_REG_PWM[7] = { 123 0x81, /* FAN 1 Duty Cycle, be used to control */ 124 0x83, /* FAN 2 Duty Cycle, be used to control */ 125 0x94, /* FAN 3 Duty Cycle, be used to control */ 126 0xA3, /* FAN 4 Duty Cycle, be used to control */ 127 0xA4, /* FAN 5 Duty Cycle, be used to control */ 128 0xA5, /* FAN 6 Duty Cycle, be used to control */ 129 0xA6 /* FAN 7 Duty Cycle, be used to control */ 130 }; 131 #define W83792D_REG_BANK 0x4E 132 #define W83792D_REG_TEMP2_CONFIG 0xC2 133 #define W83792D_REG_TEMP3_CONFIG 0xCA 134 135 static const u8 W83792D_REG_TEMP1[3] = { 136 0x27, /* TEMP 1 in DataSheet */ 137 0x39, /* TEMP 1 Over in DataSheet */ 138 0x3A, /* TEMP 1 Hyst in DataSheet */ 139 }; 140 141 static const u8 W83792D_REG_TEMP_ADD[2][6] = { 142 { 0xC0, /* TEMP 2 in DataSheet */ 143 0xC1, /* TEMP 2(0.5 deg) in DataSheet */ 144 0xC5, /* TEMP 2 Over High part in DataSheet */ 145 0xC6, /* TEMP 2 Over Low part in DataSheet */ 146 0xC3, /* TEMP 2 Thyst High part in DataSheet */ 147 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */ 148 { 0xC8, /* TEMP 3 in DataSheet */ 149 0xC9, /* TEMP 3(0.5 deg) in DataSheet */ 150 0xCD, /* TEMP 3 Over High part in DataSheet */ 151 0xCE, /* TEMP 3 Over Low part in DataSheet */ 152 0xCB, /* TEMP 3 Thyst High part in DataSheet */ 153 0xCC } /* TEMP 3 Thyst Low part in DataSheet */ 154 }; 155 156 static const u8 W83792D_REG_THERMAL[3] = { 157 0x85, /* SmartFanI: Fan1 target value */ 158 0x86, /* SmartFanI: Fan2 target value */ 159 0x96 /* SmartFanI: Fan3 target value */ 160 }; 161 162 static const u8 W83792D_REG_TOLERANCE[3] = { 163 0x87, /* (bit3-0)SmartFan Fan1 tolerance */ 164 0x87, /* (bit7-4)SmartFan Fan2 tolerance */ 165 0x97 /* (bit3-0)SmartFan Fan3 tolerance */ 166 }; 167 168 static const u8 W83792D_REG_POINTS[3][4] = { 169 { 0x85, /* SmartFanII: Fan1 temp point 1 */ 170 0xE3, /* SmartFanII: Fan1 temp point 2 */ 171 0xE4, /* SmartFanII: Fan1 temp point 3 */ 172 0xE5 }, /* SmartFanII: Fan1 temp point 4 */ 173 { 0x86, /* SmartFanII: Fan2 temp point 1 */ 174 0xE6, /* SmartFanII: Fan2 temp point 2 */ 175 0xE7, /* SmartFanII: Fan2 temp point 3 */ 176 0xE8 }, /* SmartFanII: Fan2 temp point 4 */ 177 { 0x96, /* SmartFanII: Fan3 temp point 1 */ 178 0xE9, /* SmartFanII: Fan3 temp point 2 */ 179 0xEA, /* SmartFanII: Fan3 temp point 3 */ 180 0xEB } /* SmartFanII: Fan3 temp point 4 */ 181 }; 182 183 static const u8 W83792D_REG_LEVELS[3][4] = { 184 { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */ 185 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */ 186 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */ 187 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */ 188 { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */ 189 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */ 190 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */ 191 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */ 192 { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */ 193 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */ 194 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */ 195 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */ 196 }; 197 198 #define W83792D_REG_GPIO_EN 0x1A 199 #define W83792D_REG_CONFIG 0x40 200 #define W83792D_REG_VID_FANDIV 0x47 201 #define W83792D_REG_CHIPID 0x49 202 #define W83792D_REG_WCHIPID 0x58 203 #define W83792D_REG_CHIPMAN 0x4F 204 #define W83792D_REG_PIN 0x4B 205 #define W83792D_REG_I2C_SUBADDR 0x4A 206 207 #define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */ 208 #define W83792D_REG_ALARM2 0xAA /* realtime status register2 */ 209 #define W83792D_REG_ALARM3 0xAB /* realtime status register3 */ 210 #define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */ 211 #define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */ 212 213 /* control in0/in1 's limit modifiability */ 214 #define W83792D_REG_VID_IN_B 0x17 215 216 #define W83792D_REG_VBAT 0x5D 217 #define W83792D_REG_I2C_ADDR 0x48 218 219 /* Conversions. Rounding and limit checking is only done on the TO_REG 220 variants. Note that you should be a bit careful with which arguments 221 these macros are called: arguments may be evaluated more than once. 222 Fixing this is just not worth it. */ 223 #define IN_FROM_REG(nr,val) (((nr)<=1)?(val*2): \ 224 ((((nr)==6)||((nr)==7))?(val*6):(val*4))) 225 #define IN_TO_REG(nr,val) (((nr)<=1)?(val/2): \ 226 ((((nr)==6)||((nr)==7))?(val/6):(val/4))) 227 228 static inline u8 229 FAN_TO_REG(long rpm, int div) 230 { 231 if (rpm == 0) 232 return 255; 233 rpm = SENSORS_LIMIT(rpm, 1, 1000000); 234 return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); 235 } 236 237 #define FAN_FROM_REG(val,div) ((val) == 0 ? -1 : \ 238 ((val) == 255 ? 0 : \ 239 1350000 / ((val) * (div)))) 240 241 /* for temp1 */ 242 #define TEMP1_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \ 243 : (val)) / 1000, 0, 0xff)) 244 #define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000) 245 /* for temp2 and temp3, because they need addtional resolution */ 246 #define TEMP_ADD_FROM_REG(val1, val2) \ 247 ((((val1) & 0x80 ? (val1)-0x100 \ 248 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0)) 249 #define TEMP_ADD_TO_REG_HIGH(val) \ 250 (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \ 251 : (val)) / 1000, 0, 0xff)) 252 #define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00) 253 254 #define DIV_FROM_REG(val) (1 << (val)) 255 256 static inline u8 257 DIV_TO_REG(long val) 258 { 259 int i; 260 val = SENSORS_LIMIT(val, 1, 128) >> 1; 261 for (i = 0; i < 7; i++) { 262 if (val == 0) 263 break; 264 val >>= 1; 265 } 266 return ((u8) i); 267 } 268 269 struct w83792d_data { 270 struct device *hwmon_dev; 271 272 struct mutex update_lock; 273 char valid; /* !=0 if following fields are valid */ 274 unsigned long last_updated; /* In jiffies */ 275 276 /* array of 2 pointers to subclients */ 277 struct i2c_client *lm75[2]; 278 279 u8 in[9]; /* Register value */ 280 u8 in_max[9]; /* Register value */ 281 u8 in_min[9]; /* Register value */ 282 u16 low_bits; /* Additional resolution to voltage in6-0 */ 283 u8 fan[7]; /* Register value */ 284 u8 fan_min[7]; /* Register value */ 285 u8 temp1[3]; /* current, over, thyst */ 286 u8 temp_add[2][6]; /* Register value */ 287 u8 fan_div[7]; /* Register encoding, shifted right */ 288 u8 pwm[7]; /* We only consider the first 3 set of pwm, 289 although 792 chip has 7 set of pwm. */ 290 u8 pwmenable[3]; 291 u32 alarms; /* realtime status register encoding,combined */ 292 u8 chassis; /* Chassis status */ 293 u8 chassis_clear; /* CLR_CHS, clear chassis intrusion detection */ 294 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */ 295 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */ 296 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */ 297 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */ 298 }; 299 300 static int w83792d_probe(struct i2c_client *client, 301 const struct i2c_device_id *id); 302 static int w83792d_detect(struct i2c_client *client, int kind, 303 struct i2c_board_info *info); 304 static int w83792d_remove(struct i2c_client *client); 305 static struct w83792d_data *w83792d_update_device(struct device *dev); 306 307 #ifdef DEBUG 308 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev); 309 #endif 310 311 static void w83792d_init_client(struct i2c_client *client); 312 313 static const struct i2c_device_id w83792d_id[] = { 314 { "w83792d", w83792d }, 315 { } 316 }; 317 MODULE_DEVICE_TABLE(i2c, w83792d_id); 318 319 static struct i2c_driver w83792d_driver = { 320 .class = I2C_CLASS_HWMON, 321 .driver = { 322 .name = "w83792d", 323 }, 324 .probe = w83792d_probe, 325 .remove = w83792d_remove, 326 .id_table = w83792d_id, 327 .detect = w83792d_detect, 328 .address_data = &addr_data, 329 }; 330 331 static inline long in_count_from_reg(int nr, struct w83792d_data *data) 332 { 333 /* in7 and in8 do not have low bits, but the formula still works */ 334 return ((data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03)); 335 } 336 337 /* The SMBus locks itself. The Winbond W83792D chip has a bank register, 338 but the driver only accesses registers in bank 0, so we don't have 339 to switch banks and lock access between switches. */ 340 static inline int w83792d_read_value(struct i2c_client *client, u8 reg) 341 { 342 return i2c_smbus_read_byte_data(client, reg); 343 } 344 345 static inline int 346 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value) 347 { 348 return i2c_smbus_write_byte_data(client, reg, value); 349 } 350 351 /* following are the sysfs callback functions */ 352 static ssize_t show_in(struct device *dev, struct device_attribute *attr, 353 char *buf) 354 { 355 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 356 int nr = sensor_attr->index; 357 struct w83792d_data *data = w83792d_update_device(dev); 358 return sprintf(buf,"%ld\n", IN_FROM_REG(nr,(in_count_from_reg(nr, data)))); 359 } 360 361 #define show_in_reg(reg) \ 362 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ 363 char *buf) \ 364 { \ 365 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ 366 int nr = sensor_attr->index; \ 367 struct w83792d_data *data = w83792d_update_device(dev); \ 368 return sprintf(buf,"%ld\n", (long)(IN_FROM_REG(nr, (data->reg[nr])*4))); \ 369 } 370 371 show_in_reg(in_min); 372 show_in_reg(in_max); 373 374 #define store_in_reg(REG, reg) \ 375 static ssize_t store_in_##reg (struct device *dev, \ 376 struct device_attribute *attr, \ 377 const char *buf, size_t count) \ 378 { \ 379 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ 380 int nr = sensor_attr->index; \ 381 struct i2c_client *client = to_i2c_client(dev); \ 382 struct w83792d_data *data = i2c_get_clientdata(client); \ 383 u32 val; \ 384 \ 385 val = simple_strtoul(buf, NULL, 10); \ 386 mutex_lock(&data->update_lock); \ 387 data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \ 388 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \ 389 mutex_unlock(&data->update_lock); \ 390 \ 391 return count; \ 392 } 393 store_in_reg(MIN, min); 394 store_in_reg(MAX, max); 395 396 #define show_fan_reg(reg) \ 397 static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \ 398 char *buf) \ 399 { \ 400 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ 401 int nr = sensor_attr->index - 1; \ 402 struct w83792d_data *data = w83792d_update_device(dev); \ 403 return sprintf(buf,"%d\n", \ 404 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \ 405 } 406 407 show_fan_reg(fan); 408 show_fan_reg(fan_min); 409 410 static ssize_t 411 store_fan_min(struct device *dev, struct device_attribute *attr, 412 const char *buf, size_t count) 413 { 414 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 415 int nr = sensor_attr->index - 1; 416 struct i2c_client *client = to_i2c_client(dev); 417 struct w83792d_data *data = i2c_get_clientdata(client); 418 u32 val; 419 420 val = simple_strtoul(buf, NULL, 10); 421 mutex_lock(&data->update_lock); 422 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); 423 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], 424 data->fan_min[nr]); 425 mutex_unlock(&data->update_lock); 426 427 return count; 428 } 429 430 static ssize_t 431 show_fan_div(struct device *dev, struct device_attribute *attr, 432 char *buf) 433 { 434 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 435 int nr = sensor_attr->index; 436 struct w83792d_data *data = w83792d_update_device(dev); 437 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1])); 438 } 439 440 /* Note: we save and restore the fan minimum here, because its value is 441 determined in part by the fan divisor. This follows the principle of 442 least surprise; the user doesn't expect the fan minimum to change just 443 because the divisor changed. */ 444 static ssize_t 445 store_fan_div(struct device *dev, struct device_attribute *attr, 446 const char *buf, size_t count) 447 { 448 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 449 int nr = sensor_attr->index - 1; 450 struct i2c_client *client = to_i2c_client(dev); 451 struct w83792d_data *data = i2c_get_clientdata(client); 452 unsigned long min; 453 /*u8 reg;*/ 454 u8 fan_div_reg = 0; 455 u8 tmp_fan_div; 456 457 /* Save fan_min */ 458 mutex_lock(&data->update_lock); 459 min = FAN_FROM_REG(data->fan_min[nr], 460 DIV_FROM_REG(data->fan_div[nr])); 461 462 data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10)); 463 464 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]); 465 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8; 466 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70) 467 : ((data->fan_div[nr]) & 0x07); 468 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1], 469 fan_div_reg | tmp_fan_div); 470 471 /* Restore fan_min */ 472 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); 473 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]); 474 mutex_unlock(&data->update_lock); 475 476 return count; 477 } 478 479 /* read/write the temperature1, includes measured value and limits */ 480 481 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr, 482 char *buf) 483 { 484 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 485 int nr = sensor_attr->index; 486 struct w83792d_data *data = w83792d_update_device(dev); 487 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr])); 488 } 489 490 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr, 491 const char *buf, size_t count) 492 { 493 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 494 int nr = sensor_attr->index; 495 struct i2c_client *client = to_i2c_client(dev); 496 struct w83792d_data *data = i2c_get_clientdata(client); 497 s32 val; 498 499 val = simple_strtol(buf, NULL, 10); 500 mutex_lock(&data->update_lock); 501 data->temp1[nr] = TEMP1_TO_REG(val); 502 w83792d_write_value(client, W83792D_REG_TEMP1[nr], 503 data->temp1[nr]); 504 mutex_unlock(&data->update_lock); 505 506 return count; 507 } 508 509 /* read/write the temperature2-3, includes measured value and limits */ 510 511 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr, 512 char *buf) 513 { 514 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 515 int nr = sensor_attr->nr; 516 int index = sensor_attr->index; 517 struct w83792d_data *data = w83792d_update_device(dev); 518 return sprintf(buf,"%ld\n", 519 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index], 520 data->temp_add[nr][index+1])); 521 } 522 523 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr, 524 const char *buf, size_t count) 525 { 526 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 527 int nr = sensor_attr->nr; 528 int index = sensor_attr->index; 529 struct i2c_client *client = to_i2c_client(dev); 530 struct w83792d_data *data = i2c_get_clientdata(client); 531 s32 val; 532 533 val = simple_strtol(buf, NULL, 10); 534 mutex_lock(&data->update_lock); 535 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val); 536 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val); 537 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index], 538 data->temp_add[nr][index]); 539 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1], 540 data->temp_add[nr][index+1]); 541 mutex_unlock(&data->update_lock); 542 543 return count; 544 } 545 546 /* get reatime status of all sensors items: voltage, temp, fan */ 547 static ssize_t 548 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) 549 { 550 struct w83792d_data *data = w83792d_update_device(dev); 551 return sprintf(buf, "%d\n", data->alarms); 552 } 553 554 static ssize_t show_alarm(struct device *dev, 555 struct device_attribute *attr, char *buf) 556 { 557 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 558 int nr = sensor_attr->index; 559 struct w83792d_data *data = w83792d_update_device(dev); 560 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1); 561 } 562 563 static ssize_t 564 show_pwm(struct device *dev, struct device_attribute *attr, 565 char *buf) 566 { 567 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 568 int nr = sensor_attr->index; 569 struct w83792d_data *data = w83792d_update_device(dev); 570 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4); 571 } 572 573 static ssize_t 574 show_pwmenable(struct device *dev, struct device_attribute *attr, 575 char *buf) 576 { 577 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 578 int nr = sensor_attr->index - 1; 579 struct w83792d_data *data = w83792d_update_device(dev); 580 long pwm_enable_tmp = 1; 581 582 switch (data->pwmenable[nr]) { 583 case 0: 584 pwm_enable_tmp = 1; /* manual mode */ 585 break; 586 case 1: 587 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */ 588 break; 589 case 2: 590 pwm_enable_tmp = 2; /* Smart Fan II */ 591 break; 592 } 593 594 return sprintf(buf, "%ld\n", pwm_enable_tmp); 595 } 596 597 static ssize_t 598 store_pwm(struct device *dev, struct device_attribute *attr, 599 const char *buf, size_t count) 600 { 601 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 602 int nr = sensor_attr->index; 603 struct i2c_client *client = to_i2c_client(dev); 604 struct w83792d_data *data = i2c_get_clientdata(client); 605 u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255) >> 4; 606 607 mutex_lock(&data->update_lock); 608 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0; 609 data->pwm[nr] = val; 610 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 611 mutex_unlock(&data->update_lock); 612 613 return count; 614 } 615 616 static ssize_t 617 store_pwmenable(struct device *dev, struct device_attribute *attr, 618 const char *buf, size_t count) 619 { 620 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 621 int nr = sensor_attr->index - 1; 622 struct i2c_client *client = to_i2c_client(dev); 623 struct w83792d_data *data = i2c_get_clientdata(client); 624 u32 val; 625 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp; 626 627 val = simple_strtoul(buf, NULL, 10); 628 if (val < 1 || val > 3) 629 return -EINVAL; 630 631 mutex_lock(&data->update_lock); 632 switch (val) { 633 case 1: 634 data->pwmenable[nr] = 0; /* manual mode */ 635 break; 636 case 2: 637 data->pwmenable[nr] = 2; /* Smart Fan II */ 638 break; 639 case 3: 640 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */ 641 break; 642 } 643 cfg1_tmp = data->pwmenable[0]; 644 cfg2_tmp = (data->pwmenable[1]) << 2; 645 cfg3_tmp = (data->pwmenable[2]) << 4; 646 cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0; 647 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp; 648 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp); 649 mutex_unlock(&data->update_lock); 650 651 return count; 652 } 653 654 static ssize_t 655 show_pwm_mode(struct device *dev, struct device_attribute *attr, 656 char *buf) 657 { 658 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 659 int nr = sensor_attr->index; 660 struct w83792d_data *data = w83792d_update_device(dev); 661 return sprintf(buf, "%d\n", data->pwm[nr] >> 7); 662 } 663 664 static ssize_t 665 store_pwm_mode(struct device *dev, struct device_attribute *attr, 666 const char *buf, size_t count) 667 { 668 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 669 int nr = sensor_attr->index; 670 struct i2c_client *client = to_i2c_client(dev); 671 struct w83792d_data *data = i2c_get_clientdata(client); 672 u32 val; 673 674 val = simple_strtoul(buf, NULL, 10); 675 if (val != 0 && val != 1) 676 return -EINVAL; 677 678 mutex_lock(&data->update_lock); 679 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]); 680 if (val) { /* PWM mode */ 681 data->pwm[nr] |= 0x80; 682 } else { /* DC mode */ 683 data->pwm[nr] &= 0x7f; 684 } 685 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 686 mutex_unlock(&data->update_lock); 687 688 return count; 689 } 690 691 static ssize_t 692 show_regs_chassis(struct device *dev, struct device_attribute *attr, 693 char *buf) 694 { 695 struct w83792d_data *data = w83792d_update_device(dev); 696 return sprintf(buf, "%d\n", data->chassis); 697 } 698 699 static ssize_t 700 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf) 701 { 702 struct w83792d_data *data = w83792d_update_device(dev); 703 return sprintf(buf, "%d\n", data->chassis_clear); 704 } 705 706 static ssize_t 707 store_chassis_clear(struct device *dev, struct device_attribute *attr, 708 const char *buf, size_t count) 709 { 710 struct i2c_client *client = to_i2c_client(dev); 711 struct w83792d_data *data = i2c_get_clientdata(client); 712 u32 val; 713 u8 temp1 = 0, temp2 = 0; 714 715 val = simple_strtoul(buf, NULL, 10); 716 mutex_lock(&data->update_lock); 717 data->chassis_clear = SENSORS_LIMIT(val, 0 ,1); 718 temp1 = ((data->chassis_clear) << 7) & 0x80; 719 temp2 = w83792d_read_value(client, 720 W83792D_REG_CHASSIS_CLR) & 0x7f; 721 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2); 722 mutex_unlock(&data->update_lock); 723 724 return count; 725 } 726 727 /* For Smart Fan I / Thermal Cruise */ 728 static ssize_t 729 show_thermal_cruise(struct device *dev, struct device_attribute *attr, 730 char *buf) 731 { 732 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 733 int nr = sensor_attr->index; 734 struct w83792d_data *data = w83792d_update_device(dev); 735 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]); 736 } 737 738 static ssize_t 739 store_thermal_cruise(struct device *dev, struct device_attribute *attr, 740 const char *buf, size_t count) 741 { 742 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 743 int nr = sensor_attr->index - 1; 744 struct i2c_client *client = to_i2c_client(dev); 745 struct w83792d_data *data = i2c_get_clientdata(client); 746 u32 val; 747 u8 target_tmp=0, target_mask=0; 748 749 val = simple_strtoul(buf, NULL, 10); 750 target_tmp = val; 751 target_tmp = target_tmp & 0x7f; 752 mutex_lock(&data->update_lock); 753 target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80; 754 data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255); 755 w83792d_write_value(client, W83792D_REG_THERMAL[nr], 756 (data->thermal_cruise[nr]) | target_mask); 757 mutex_unlock(&data->update_lock); 758 759 return count; 760 } 761 762 /* For Smart Fan I/Thermal Cruise and Smart Fan II */ 763 static ssize_t 764 show_tolerance(struct device *dev, struct device_attribute *attr, 765 char *buf) 766 { 767 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 768 int nr = sensor_attr->index; 769 struct w83792d_data *data = w83792d_update_device(dev); 770 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]); 771 } 772 773 static ssize_t 774 store_tolerance(struct device *dev, struct device_attribute *attr, 775 const char *buf, size_t count) 776 { 777 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 778 int nr = sensor_attr->index - 1; 779 struct i2c_client *client = to_i2c_client(dev); 780 struct w83792d_data *data = i2c_get_clientdata(client); 781 u32 val; 782 u8 tol_tmp, tol_mask; 783 784 val = simple_strtoul(buf, NULL, 10); 785 mutex_lock(&data->update_lock); 786 tol_mask = w83792d_read_value(client, 787 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0); 788 tol_tmp = SENSORS_LIMIT(val, 0, 15); 789 tol_tmp &= 0x0f; 790 data->tolerance[nr] = tol_tmp; 791 if (nr == 1) { 792 tol_tmp <<= 4; 793 } 794 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr], 795 tol_mask | tol_tmp); 796 mutex_unlock(&data->update_lock); 797 798 return count; 799 } 800 801 /* For Smart Fan II */ 802 static ssize_t 803 show_sf2_point(struct device *dev, struct device_attribute *attr, 804 char *buf) 805 { 806 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 807 int nr = sensor_attr->nr; 808 int index = sensor_attr->index; 809 struct w83792d_data *data = w83792d_update_device(dev); 810 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]); 811 } 812 813 static ssize_t 814 store_sf2_point(struct device *dev, struct device_attribute *attr, 815 const char *buf, size_t count) 816 { 817 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 818 int nr = sensor_attr->nr - 1; 819 int index = sensor_attr->index - 1; 820 struct i2c_client *client = to_i2c_client(dev); 821 struct w83792d_data *data = i2c_get_clientdata(client); 822 u32 val; 823 u8 mask_tmp = 0; 824 825 val = simple_strtoul(buf, NULL, 10); 826 mutex_lock(&data->update_lock); 827 data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127); 828 mask_tmp = w83792d_read_value(client, 829 W83792D_REG_POINTS[index][nr]) & 0x80; 830 w83792d_write_value(client, W83792D_REG_POINTS[index][nr], 831 mask_tmp|data->sf2_points[index][nr]); 832 mutex_unlock(&data->update_lock); 833 834 return count; 835 } 836 837 static ssize_t 838 show_sf2_level(struct device *dev, struct device_attribute *attr, 839 char *buf) 840 { 841 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 842 int nr = sensor_attr->nr; 843 int index = sensor_attr->index; 844 struct w83792d_data *data = w83792d_update_device(dev); 845 return sprintf(buf, "%d\n", 846 (((data->sf2_levels[index-1][nr]) * 100) / 15)); 847 } 848 849 static ssize_t 850 store_sf2_level(struct device *dev, struct device_attribute *attr, 851 const char *buf, size_t count) 852 { 853 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 854 int nr = sensor_attr->nr; 855 int index = sensor_attr->index - 1; 856 struct i2c_client *client = to_i2c_client(dev); 857 struct w83792d_data *data = i2c_get_clientdata(client); 858 u32 val; 859 u8 mask_tmp=0, level_tmp=0; 860 861 val = simple_strtoul(buf, NULL, 10); 862 mutex_lock(&data->update_lock); 863 data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15); 864 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr]) 865 & ((nr==3) ? 0xf0 : 0x0f); 866 if (nr==3) { 867 level_tmp = data->sf2_levels[index][nr]; 868 } else { 869 level_tmp = data->sf2_levels[index][nr] << 4; 870 } 871 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp); 872 mutex_unlock(&data->update_lock); 873 874 return count; 875 } 876 877 878 static int 879 w83792d_detect_subclients(struct i2c_client *new_client) 880 { 881 int i, id, err; 882 int address = new_client->addr; 883 u8 val; 884 struct i2c_adapter *adapter = new_client->adapter; 885 struct w83792d_data *data = i2c_get_clientdata(new_client); 886 887 id = i2c_adapter_id(adapter); 888 if (force_subclients[0] == id && force_subclients[1] == address) { 889 for (i = 2; i <= 3; i++) { 890 if (force_subclients[i] < 0x48 || 891 force_subclients[i] > 0x4f) { 892 dev_err(&new_client->dev, "invalid subclient " 893 "address %d; must be 0x48-0x4f\n", 894 force_subclients[i]); 895 err = -ENODEV; 896 goto ERROR_SC_0; 897 } 898 } 899 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR, 900 (force_subclients[2] & 0x07) | 901 ((force_subclients[3] & 0x07) << 4)); 902 } 903 904 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR); 905 if (!(val & 0x08)) { 906 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7)); 907 } 908 if (!(val & 0x80)) { 909 if ((data->lm75[0] != NULL) && 910 ((val & 0x7) == ((val >> 4) & 0x7))) { 911 dev_err(&new_client->dev, "duplicate addresses 0x%x, " 912 "use force_subclient\n", data->lm75[0]->addr); 913 err = -ENODEV; 914 goto ERROR_SC_1; 915 } 916 data->lm75[1] = i2c_new_dummy(adapter, 917 0x48 + ((val >> 4) & 0x7)); 918 } 919 920 return 0; 921 922 /* Undo inits in case of errors */ 923 924 ERROR_SC_1: 925 if (data->lm75[0] != NULL) 926 i2c_unregister_device(data->lm75[0]); 927 ERROR_SC_0: 928 return err; 929 } 930 931 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); 932 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); 933 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); 934 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); 935 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4); 936 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5); 937 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6); 938 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7); 939 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8); 940 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO, 941 show_in_min, store_in_min, 0); 942 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, 943 show_in_min, store_in_min, 1); 944 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, 945 show_in_min, store_in_min, 2); 946 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO, 947 show_in_min, store_in_min, 3); 948 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO, 949 show_in_min, store_in_min, 4); 950 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO, 951 show_in_min, store_in_min, 5); 952 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO, 953 show_in_min, store_in_min, 6); 954 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO, 955 show_in_min, store_in_min, 7); 956 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO, 957 show_in_min, store_in_min, 8); 958 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO, 959 show_in_max, store_in_max, 0); 960 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, 961 show_in_max, store_in_max, 1); 962 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, 963 show_in_max, store_in_max, 2); 964 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO, 965 show_in_max, store_in_max, 3); 966 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO, 967 show_in_max, store_in_max, 4); 968 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO, 969 show_in_max, store_in_max, 5); 970 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO, 971 show_in_max, store_in_max, 6); 972 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO, 973 show_in_max, store_in_max, 7); 974 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO, 975 show_in_max, store_in_max, 8); 976 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0); 977 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0); 978 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0); 979 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, 980 show_temp1, store_temp1, 0, 1); 981 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23, 982 store_temp23, 0, 2); 983 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23, 984 store_temp23, 1, 2); 985 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, 986 show_temp1, store_temp1, 0, 2); 987 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, 988 show_temp23, store_temp23, 0, 4); 989 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, 990 show_temp23, store_temp23, 1, 4); 991 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); 992 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); 993 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); 994 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2); 995 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3); 996 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4); 997 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5); 998 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6); 999 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7); 1000 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8); 1001 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9); 1002 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10); 1003 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11); 1004 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12); 1005 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15); 1006 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19); 1007 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20); 1008 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21); 1009 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22); 1010 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23); 1011 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL); 1012 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR, 1013 show_chassis_clear, store_chassis_clear); 1014 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0); 1015 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1); 1016 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2); 1017 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, 1018 show_pwmenable, store_pwmenable, 1); 1019 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, 1020 show_pwmenable, store_pwmenable, 2); 1021 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, 1022 show_pwmenable, store_pwmenable, 3); 1023 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, 1024 show_pwm_mode, store_pwm_mode, 0); 1025 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, 1026 show_pwm_mode, store_pwm_mode, 1); 1027 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, 1028 show_pwm_mode, store_pwm_mode, 2); 1029 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO, 1030 show_tolerance, store_tolerance, 1); 1031 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO, 1032 show_tolerance, store_tolerance, 2); 1033 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO, 1034 show_tolerance, store_tolerance, 3); 1035 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO, 1036 show_thermal_cruise, store_thermal_cruise, 1); 1037 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO, 1038 show_thermal_cruise, store_thermal_cruise, 2); 1039 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO, 1040 show_thermal_cruise, store_thermal_cruise, 3); 1041 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR, 1042 show_sf2_point, store_sf2_point, 1, 1); 1043 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR, 1044 show_sf2_point, store_sf2_point, 2, 1); 1045 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR, 1046 show_sf2_point, store_sf2_point, 3, 1); 1047 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR, 1048 show_sf2_point, store_sf2_point, 4, 1); 1049 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR, 1050 show_sf2_point, store_sf2_point, 1, 2); 1051 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR, 1052 show_sf2_point, store_sf2_point, 2, 2); 1053 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR, 1054 show_sf2_point, store_sf2_point, 3, 2); 1055 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR, 1056 show_sf2_point, store_sf2_point, 4, 2); 1057 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR, 1058 show_sf2_point, store_sf2_point, 1, 3); 1059 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR, 1060 show_sf2_point, store_sf2_point, 2, 3); 1061 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR, 1062 show_sf2_point, store_sf2_point, 3, 3); 1063 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR, 1064 show_sf2_point, store_sf2_point, 4, 3); 1065 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR, 1066 show_sf2_level, store_sf2_level, 1, 1); 1067 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR, 1068 show_sf2_level, store_sf2_level, 2, 1); 1069 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR, 1070 show_sf2_level, store_sf2_level, 3, 1); 1071 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR, 1072 show_sf2_level, store_sf2_level, 1, 2); 1073 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR, 1074 show_sf2_level, store_sf2_level, 2, 2); 1075 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR, 1076 show_sf2_level, store_sf2_level, 3, 2); 1077 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR, 1078 show_sf2_level, store_sf2_level, 1, 3); 1079 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR, 1080 show_sf2_level, store_sf2_level, 2, 3); 1081 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR, 1082 show_sf2_level, store_sf2_level, 3, 3); 1083 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1); 1084 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2); 1085 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3); 1086 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4); 1087 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5); 1088 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6); 1089 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7); 1090 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, 1091 show_fan_min, store_fan_min, 1); 1092 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, 1093 show_fan_min, store_fan_min, 2); 1094 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, 1095 show_fan_min, store_fan_min, 3); 1096 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, 1097 show_fan_min, store_fan_min, 4); 1098 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO, 1099 show_fan_min, store_fan_min, 5); 1100 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO, 1101 show_fan_min, store_fan_min, 6); 1102 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO, 1103 show_fan_min, store_fan_min, 7); 1104 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO, 1105 show_fan_div, store_fan_div, 1); 1106 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO, 1107 show_fan_div, store_fan_div, 2); 1108 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO, 1109 show_fan_div, store_fan_div, 3); 1110 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO, 1111 show_fan_div, store_fan_div, 4); 1112 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO, 1113 show_fan_div, store_fan_div, 5); 1114 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO, 1115 show_fan_div, store_fan_div, 6); 1116 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO, 1117 show_fan_div, store_fan_div, 7); 1118 1119 static struct attribute *w83792d_attributes_fan[4][5] = { 1120 { 1121 &sensor_dev_attr_fan4_input.dev_attr.attr, 1122 &sensor_dev_attr_fan4_min.dev_attr.attr, 1123 &sensor_dev_attr_fan4_div.dev_attr.attr, 1124 &sensor_dev_attr_fan4_alarm.dev_attr.attr, 1125 NULL 1126 }, { 1127 &sensor_dev_attr_fan5_input.dev_attr.attr, 1128 &sensor_dev_attr_fan5_min.dev_attr.attr, 1129 &sensor_dev_attr_fan5_div.dev_attr.attr, 1130 &sensor_dev_attr_fan5_alarm.dev_attr.attr, 1131 NULL 1132 }, { 1133 &sensor_dev_attr_fan6_input.dev_attr.attr, 1134 &sensor_dev_attr_fan6_min.dev_attr.attr, 1135 &sensor_dev_attr_fan6_div.dev_attr.attr, 1136 &sensor_dev_attr_fan6_alarm.dev_attr.attr, 1137 NULL 1138 }, { 1139 &sensor_dev_attr_fan7_input.dev_attr.attr, 1140 &sensor_dev_attr_fan7_min.dev_attr.attr, 1141 &sensor_dev_attr_fan7_div.dev_attr.attr, 1142 &sensor_dev_attr_fan7_alarm.dev_attr.attr, 1143 NULL 1144 } 1145 }; 1146 1147 static const struct attribute_group w83792d_group_fan[4] = { 1148 { .attrs = w83792d_attributes_fan[0] }, 1149 { .attrs = w83792d_attributes_fan[1] }, 1150 { .attrs = w83792d_attributes_fan[2] }, 1151 { .attrs = w83792d_attributes_fan[3] }, 1152 }; 1153 1154 static struct attribute *w83792d_attributes[] = { 1155 &sensor_dev_attr_in0_input.dev_attr.attr, 1156 &sensor_dev_attr_in0_max.dev_attr.attr, 1157 &sensor_dev_attr_in0_min.dev_attr.attr, 1158 &sensor_dev_attr_in1_input.dev_attr.attr, 1159 &sensor_dev_attr_in1_max.dev_attr.attr, 1160 &sensor_dev_attr_in1_min.dev_attr.attr, 1161 &sensor_dev_attr_in2_input.dev_attr.attr, 1162 &sensor_dev_attr_in2_max.dev_attr.attr, 1163 &sensor_dev_attr_in2_min.dev_attr.attr, 1164 &sensor_dev_attr_in3_input.dev_attr.attr, 1165 &sensor_dev_attr_in3_max.dev_attr.attr, 1166 &sensor_dev_attr_in3_min.dev_attr.attr, 1167 &sensor_dev_attr_in4_input.dev_attr.attr, 1168 &sensor_dev_attr_in4_max.dev_attr.attr, 1169 &sensor_dev_attr_in4_min.dev_attr.attr, 1170 &sensor_dev_attr_in5_input.dev_attr.attr, 1171 &sensor_dev_attr_in5_max.dev_attr.attr, 1172 &sensor_dev_attr_in5_min.dev_attr.attr, 1173 &sensor_dev_attr_in6_input.dev_attr.attr, 1174 &sensor_dev_attr_in6_max.dev_attr.attr, 1175 &sensor_dev_attr_in6_min.dev_attr.attr, 1176 &sensor_dev_attr_in7_input.dev_attr.attr, 1177 &sensor_dev_attr_in7_max.dev_attr.attr, 1178 &sensor_dev_attr_in7_min.dev_attr.attr, 1179 &sensor_dev_attr_in8_input.dev_attr.attr, 1180 &sensor_dev_attr_in8_max.dev_attr.attr, 1181 &sensor_dev_attr_in8_min.dev_attr.attr, 1182 &sensor_dev_attr_in0_alarm.dev_attr.attr, 1183 &sensor_dev_attr_in1_alarm.dev_attr.attr, 1184 &sensor_dev_attr_in2_alarm.dev_attr.attr, 1185 &sensor_dev_attr_in3_alarm.dev_attr.attr, 1186 &sensor_dev_attr_in4_alarm.dev_attr.attr, 1187 &sensor_dev_attr_in5_alarm.dev_attr.attr, 1188 &sensor_dev_attr_in6_alarm.dev_attr.attr, 1189 &sensor_dev_attr_in7_alarm.dev_attr.attr, 1190 &sensor_dev_attr_in8_alarm.dev_attr.attr, 1191 &sensor_dev_attr_temp1_input.dev_attr.attr, 1192 &sensor_dev_attr_temp1_max.dev_attr.attr, 1193 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, 1194 &sensor_dev_attr_temp2_input.dev_attr.attr, 1195 &sensor_dev_attr_temp2_max.dev_attr.attr, 1196 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, 1197 &sensor_dev_attr_temp3_input.dev_attr.attr, 1198 &sensor_dev_attr_temp3_max.dev_attr.attr, 1199 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, 1200 &sensor_dev_attr_temp1_alarm.dev_attr.attr, 1201 &sensor_dev_attr_temp2_alarm.dev_attr.attr, 1202 &sensor_dev_attr_temp3_alarm.dev_attr.attr, 1203 &sensor_dev_attr_pwm1.dev_attr.attr, 1204 &sensor_dev_attr_pwm1_mode.dev_attr.attr, 1205 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 1206 &sensor_dev_attr_pwm2.dev_attr.attr, 1207 &sensor_dev_attr_pwm2_mode.dev_attr.attr, 1208 &sensor_dev_attr_pwm2_enable.dev_attr.attr, 1209 &sensor_dev_attr_pwm3.dev_attr.attr, 1210 &sensor_dev_attr_pwm3_mode.dev_attr.attr, 1211 &sensor_dev_attr_pwm3_enable.dev_attr.attr, 1212 &dev_attr_alarms.attr, 1213 &dev_attr_chassis.attr, 1214 &dev_attr_chassis_clear.attr, 1215 &sensor_dev_attr_tolerance1.dev_attr.attr, 1216 &sensor_dev_attr_thermal_cruise1.dev_attr.attr, 1217 &sensor_dev_attr_tolerance2.dev_attr.attr, 1218 &sensor_dev_attr_thermal_cruise2.dev_attr.attr, 1219 &sensor_dev_attr_tolerance3.dev_attr.attr, 1220 &sensor_dev_attr_thermal_cruise3.dev_attr.attr, 1221 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr, 1222 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr, 1223 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr, 1224 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr, 1225 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr, 1226 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr, 1227 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr, 1228 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr, 1229 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr, 1230 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr, 1231 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr, 1232 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr, 1233 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr, 1234 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr, 1235 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr, 1236 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr, 1237 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr, 1238 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr, 1239 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr, 1240 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr, 1241 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr, 1242 &sensor_dev_attr_fan1_input.dev_attr.attr, 1243 &sensor_dev_attr_fan1_min.dev_attr.attr, 1244 &sensor_dev_attr_fan1_div.dev_attr.attr, 1245 &sensor_dev_attr_fan1_alarm.dev_attr.attr, 1246 &sensor_dev_attr_fan2_input.dev_attr.attr, 1247 &sensor_dev_attr_fan2_min.dev_attr.attr, 1248 &sensor_dev_attr_fan2_div.dev_attr.attr, 1249 &sensor_dev_attr_fan2_alarm.dev_attr.attr, 1250 &sensor_dev_attr_fan3_input.dev_attr.attr, 1251 &sensor_dev_attr_fan3_min.dev_attr.attr, 1252 &sensor_dev_attr_fan3_div.dev_attr.attr, 1253 &sensor_dev_attr_fan3_alarm.dev_attr.attr, 1254 NULL 1255 }; 1256 1257 static const struct attribute_group w83792d_group = { 1258 .attrs = w83792d_attributes, 1259 }; 1260 1261 /* Return 0 if detection is successful, -ENODEV otherwise */ 1262 static int 1263 w83792d_detect(struct i2c_client *client, int kind, struct i2c_board_info *info) 1264 { 1265 struct i2c_adapter *adapter = client->adapter; 1266 int val1, val2; 1267 unsigned short address = client->addr; 1268 1269 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { 1270 return -ENODEV; 1271 } 1272 1273 /* The w83792d may be stuck in some other bank than bank 0. This may 1274 make reading other information impossible. Specify a force=... or 1275 force_*=... parameter, and the Winbond will be reset to the right 1276 bank. */ 1277 if (kind < 0) { 1278 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) { 1279 return -ENODEV; 1280 } 1281 val1 = w83792d_read_value(client, W83792D_REG_BANK); 1282 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1283 /* Check for Winbond ID if in bank 0 */ 1284 if (!(val1 & 0x07)) { /* is Bank0 */ 1285 if (((!(val1 & 0x80)) && (val2 != 0xa3)) || 1286 ((val1 & 0x80) && (val2 != 0x5c))) { 1287 return -ENODEV; 1288 } 1289 } 1290 /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR 1291 should match */ 1292 if (w83792d_read_value(client, 1293 W83792D_REG_I2C_ADDR) != address) { 1294 return -ENODEV; 1295 } 1296 } 1297 1298 /* We have either had a force parameter, or we have already detected the 1299 Winbond. Put it now into bank 0 and Vendor ID High Byte */ 1300 w83792d_write_value(client, 1301 W83792D_REG_BANK, 1302 (w83792d_read_value(client, 1303 W83792D_REG_BANK) & 0x78) | 0x80); 1304 1305 /* Determine the chip type. */ 1306 if (kind <= 0) { 1307 /* get vendor ID */ 1308 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1309 if (val2 != 0x5c) { /* the vendor is NOT Winbond */ 1310 return -ENODEV; 1311 } 1312 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID); 1313 if (val1 == 0x7a) { 1314 kind = w83792d; 1315 } else { 1316 if (kind == 0) 1317 dev_warn(&adapter->dev, 1318 "w83792d: Ignoring 'force' parameter for" 1319 " unknown chip at adapter %d, address" 1320 " 0x%02x\n", i2c_adapter_id(adapter), 1321 address); 1322 return -ENODEV; 1323 } 1324 } 1325 1326 strlcpy(info->type, "w83792d", I2C_NAME_SIZE); 1327 1328 return 0; 1329 } 1330 1331 static int 1332 w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id) 1333 { 1334 struct w83792d_data *data; 1335 struct device *dev = &client->dev; 1336 int i, val1, err; 1337 1338 data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL); 1339 if (!data) { 1340 err = -ENOMEM; 1341 goto ERROR0; 1342 } 1343 1344 i2c_set_clientdata(client, data); 1345 data->valid = 0; 1346 mutex_init(&data->update_lock); 1347 1348 err = w83792d_detect_subclients(client); 1349 if (err) 1350 goto ERROR1; 1351 1352 /* Initialize the chip */ 1353 w83792d_init_client(client); 1354 1355 /* A few vars need to be filled upon startup */ 1356 for (i = 0; i < 7; i++) { 1357 data->fan_min[i] = w83792d_read_value(client, 1358 W83792D_REG_FAN_MIN[i]); 1359 } 1360 1361 /* Register sysfs hooks */ 1362 if ((err = sysfs_create_group(&dev->kobj, &w83792d_group))) 1363 goto ERROR3; 1364 1365 /* Read GPIO enable register to check if pins for fan 4,5 are used as 1366 GPIO */ 1367 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN); 1368 1369 if (!(val1 & 0x40)) 1370 if ((err = sysfs_create_group(&dev->kobj, 1371 &w83792d_group_fan[0]))) 1372 goto exit_remove_files; 1373 1374 if (!(val1 & 0x20)) 1375 if ((err = sysfs_create_group(&dev->kobj, 1376 &w83792d_group_fan[1]))) 1377 goto exit_remove_files; 1378 1379 val1 = w83792d_read_value(client, W83792D_REG_PIN); 1380 if (val1 & 0x40) 1381 if ((err = sysfs_create_group(&dev->kobj, 1382 &w83792d_group_fan[2]))) 1383 goto exit_remove_files; 1384 1385 if (val1 & 0x04) 1386 if ((err = sysfs_create_group(&dev->kobj, 1387 &w83792d_group_fan[3]))) 1388 goto exit_remove_files; 1389 1390 data->hwmon_dev = hwmon_device_register(dev); 1391 if (IS_ERR(data->hwmon_dev)) { 1392 err = PTR_ERR(data->hwmon_dev); 1393 goto exit_remove_files; 1394 } 1395 1396 return 0; 1397 1398 exit_remove_files: 1399 sysfs_remove_group(&dev->kobj, &w83792d_group); 1400 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1401 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]); 1402 ERROR3: 1403 if (data->lm75[0] != NULL) 1404 i2c_unregister_device(data->lm75[0]); 1405 if (data->lm75[1] != NULL) 1406 i2c_unregister_device(data->lm75[1]); 1407 ERROR1: 1408 kfree(data); 1409 ERROR0: 1410 return err; 1411 } 1412 1413 static int 1414 w83792d_remove(struct i2c_client *client) 1415 { 1416 struct w83792d_data *data = i2c_get_clientdata(client); 1417 int i; 1418 1419 hwmon_device_unregister(data->hwmon_dev); 1420 sysfs_remove_group(&client->dev.kobj, &w83792d_group); 1421 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1422 sysfs_remove_group(&client->dev.kobj, 1423 &w83792d_group_fan[i]); 1424 1425 if (data->lm75[0] != NULL) 1426 i2c_unregister_device(data->lm75[0]); 1427 if (data->lm75[1] != NULL) 1428 i2c_unregister_device(data->lm75[1]); 1429 1430 kfree(data); 1431 return 0; 1432 } 1433 1434 static void 1435 w83792d_init_client(struct i2c_client *client) 1436 { 1437 u8 temp2_cfg, temp3_cfg, vid_in_b; 1438 1439 if (init) { 1440 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80); 1441 } 1442 /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0): 1443 W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of 1444 vin0/vin1 can be modified by user; 1445 W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of 1446 vin0/vin1 auto-updated, can NOT be modified by user. */ 1447 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B); 1448 w83792d_write_value(client, W83792D_REG_VID_IN_B, 1449 vid_in_b & 0xbf); 1450 1451 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG); 1452 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG); 1453 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG, 1454 temp2_cfg & 0xe6); 1455 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG, 1456 temp3_cfg & 0xe6); 1457 1458 /* Start monitoring */ 1459 w83792d_write_value(client, W83792D_REG_CONFIG, 1460 (w83792d_read_value(client, 1461 W83792D_REG_CONFIG) & 0xf7) 1462 | 0x01); 1463 } 1464 1465 static struct w83792d_data *w83792d_update_device(struct device *dev) 1466 { 1467 struct i2c_client *client = to_i2c_client(dev); 1468 struct w83792d_data *data = i2c_get_clientdata(client); 1469 int i, j; 1470 u8 reg_array_tmp[4], reg_tmp; 1471 1472 mutex_lock(&data->update_lock); 1473 1474 if (time_after 1475 (jiffies - data->last_updated, (unsigned long) (HZ * 3)) 1476 || time_before(jiffies, data->last_updated) || !data->valid) { 1477 dev_dbg(dev, "Starting device update\n"); 1478 1479 /* Update the voltages measured value and limits */ 1480 for (i = 0; i < 9; i++) { 1481 data->in[i] = w83792d_read_value(client, 1482 W83792D_REG_IN[i]); 1483 data->in_max[i] = w83792d_read_value(client, 1484 W83792D_REG_IN_MAX[i]); 1485 data->in_min[i] = w83792d_read_value(client, 1486 W83792D_REG_IN_MIN[i]); 1487 } 1488 data->low_bits = w83792d_read_value(client, 1489 W83792D_REG_LOW_BITS1) + 1490 (w83792d_read_value(client, 1491 W83792D_REG_LOW_BITS2) << 8); 1492 for (i = 0; i < 7; i++) { 1493 /* Update the Fan measured value and limits */ 1494 data->fan[i] = w83792d_read_value(client, 1495 W83792D_REG_FAN[i]); 1496 data->fan_min[i] = w83792d_read_value(client, 1497 W83792D_REG_FAN_MIN[i]); 1498 /* Update the PWM/DC Value and PWM/DC flag */ 1499 data->pwm[i] = w83792d_read_value(client, 1500 W83792D_REG_PWM[i]); 1501 } 1502 1503 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG); 1504 data->pwmenable[0] = reg_tmp & 0x03; 1505 data->pwmenable[1] = (reg_tmp>>2) & 0x03; 1506 data->pwmenable[2] = (reg_tmp>>4) & 0x03; 1507 1508 for (i = 0; i < 3; i++) { 1509 data->temp1[i] = w83792d_read_value(client, 1510 W83792D_REG_TEMP1[i]); 1511 } 1512 for (i = 0; i < 2; i++) { 1513 for (j = 0; j < 6; j++) { 1514 data->temp_add[i][j] = w83792d_read_value( 1515 client,W83792D_REG_TEMP_ADD[i][j]); 1516 } 1517 } 1518 1519 /* Update the Fan Divisor */ 1520 for (i = 0; i < 4; i++) { 1521 reg_array_tmp[i] = w83792d_read_value(client, 1522 W83792D_REG_FAN_DIV[i]); 1523 } 1524 data->fan_div[0] = reg_array_tmp[0] & 0x07; 1525 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07; 1526 data->fan_div[2] = reg_array_tmp[1] & 0x07; 1527 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07; 1528 data->fan_div[4] = reg_array_tmp[2] & 0x07; 1529 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07; 1530 data->fan_div[6] = reg_array_tmp[3] & 0x07; 1531 1532 /* Update the realtime status */ 1533 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) + 1534 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) + 1535 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16); 1536 1537 /* Update CaseOpen status and it's CLR_CHS. */ 1538 data->chassis = (w83792d_read_value(client, 1539 W83792D_REG_CHASSIS) >> 5) & 0x01; 1540 data->chassis_clear = (w83792d_read_value(client, 1541 W83792D_REG_CHASSIS_CLR) >> 7) & 0x01; 1542 1543 /* Update Thermal Cruise/Smart Fan I target value */ 1544 for (i = 0; i < 3; i++) { 1545 data->thermal_cruise[i] = 1546 w83792d_read_value(client, 1547 W83792D_REG_THERMAL[i]) & 0x7f; 1548 } 1549 1550 /* Update Smart Fan I/II tolerance */ 1551 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]); 1552 data->tolerance[0] = reg_tmp & 0x0f; 1553 data->tolerance[1] = (reg_tmp >> 4) & 0x0f; 1554 data->tolerance[2] = w83792d_read_value(client, 1555 W83792D_REG_TOLERANCE[2]) & 0x0f; 1556 1557 /* Update Smart Fan II temperature points */ 1558 for (i = 0; i < 3; i++) { 1559 for (j = 0; j < 4; j++) { 1560 data->sf2_points[i][j] = w83792d_read_value( 1561 client,W83792D_REG_POINTS[i][j]) & 0x7f; 1562 } 1563 } 1564 1565 /* Update Smart Fan II duty cycle levels */ 1566 for (i = 0; i < 3; i++) { 1567 reg_tmp = w83792d_read_value(client, 1568 W83792D_REG_LEVELS[i][0]); 1569 data->sf2_levels[i][0] = reg_tmp & 0x0f; 1570 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f; 1571 reg_tmp = w83792d_read_value(client, 1572 W83792D_REG_LEVELS[i][2]); 1573 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f; 1574 data->sf2_levels[i][3] = reg_tmp & 0x0f; 1575 } 1576 1577 data->last_updated = jiffies; 1578 data->valid = 1; 1579 } 1580 1581 mutex_unlock(&data->update_lock); 1582 1583 #ifdef DEBUG 1584 w83792d_print_debug(data, dev); 1585 #endif 1586 1587 return data; 1588 } 1589 1590 #ifdef DEBUG 1591 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev) 1592 { 1593 int i=0, j=0; 1594 dev_dbg(dev, "==========The following is the debug message...========\n"); 1595 dev_dbg(dev, "9 set of Voltages: =====>\n"); 1596 for (i=0; i<9; i++) { 1597 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]); 1598 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]); 1599 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]); 1600 } 1601 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff); 1602 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8); 1603 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n"); 1604 for (i=0; i<7; i++) { 1605 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]); 1606 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]); 1607 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]); 1608 } 1609 dev_dbg(dev, "3 set of Temperatures: =====>\n"); 1610 for (i=0; i<3; i++) { 1611 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]); 1612 } 1613 1614 for (i=0; i<2; i++) { 1615 for (j=0; j<6; j++) { 1616 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j, 1617 data->temp_add[i][j]); 1618 } 1619 } 1620 1621 for (i=0; i<7; i++) { 1622 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]); 1623 } 1624 dev_dbg(dev, "==========End of the debug message...==================\n"); 1625 dev_dbg(dev, "\n"); 1626 } 1627 #endif 1628 1629 static int __init 1630 sensors_w83792d_init(void) 1631 { 1632 return i2c_add_driver(&w83792d_driver); 1633 } 1634 1635 static void __exit 1636 sensors_w83792d_exit(void) 1637 { 1638 i2c_del_driver(&w83792d_driver); 1639 } 1640 1641 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>"); 1642 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6"); 1643 MODULE_LICENSE("GPL"); 1644 1645 module_init(sensors_w83792d_init); 1646 module_exit(sensors_w83792d_exit); 1647 1648