1 /* 2 w83792d.c - Part of lm_sensors, Linux kernel modules for hardware 3 monitoring 4 Copyright (C) 2004, 2005 Winbond Electronics Corp. 5 Chunhao Huang <DZShen@Winbond.com.tw>, 6 Rudolf Marek <r.marek@assembler.cz> 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 2 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program; if not, write to the Free Software 20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 21 22 Note: 23 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver. 24 2. This driver is only for Winbond W83792D C version device, there 25 are also some motherboards with B version W83792D device. The 26 calculation method to in6-in7(measured value, limits) is a little 27 different between C and B version. C or B version can be identified 28 by CR[0x49h]. 29 */ 30 31 /* 32 Supports following chips: 33 34 Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA 35 w83792d 9 7 7 3 0x7a 0x5ca3 yes no 36 */ 37 38 #include <linux/module.h> 39 #include <linux/init.h> 40 #include <linux/slab.h> 41 #include <linux/i2c.h> 42 #include <linux/hwmon.h> 43 #include <linux/hwmon-sysfs.h> 44 #include <linux/err.h> 45 #include <linux/mutex.h> 46 #include <linux/sysfs.h> 47 48 /* Addresses to scan */ 49 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, 50 I2C_CLIENT_END }; 51 52 /* Insmod parameters */ 53 54 static unsigned short force_subclients[4]; 55 module_param_array(force_subclients, short, NULL, 0); 56 MODULE_PARM_DESC(force_subclients, "List of subclient addresses: " 57 "{bus, clientaddr, subclientaddr1, subclientaddr2}"); 58 59 static int init; 60 module_param(init, bool, 0); 61 MODULE_PARM_DESC(init, "Set to one to force chip initialization"); 62 63 /* The W83792D registers */ 64 static const u8 W83792D_REG_IN[9] = { 65 0x20, /* Vcore A in DataSheet */ 66 0x21, /* Vcore B in DataSheet */ 67 0x22, /* VIN0 in DataSheet */ 68 0x23, /* VIN1 in DataSheet */ 69 0x24, /* VIN2 in DataSheet */ 70 0x25, /* VIN3 in DataSheet */ 71 0x26, /* 5VCC in DataSheet */ 72 0xB0, /* 5VSB in DataSheet */ 73 0xB1 /* VBAT in DataSheet */ 74 }; 75 #define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */ 76 #define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */ 77 static const u8 W83792D_REG_IN_MAX[9] = { 78 0x2B, /* Vcore A High Limit in DataSheet */ 79 0x2D, /* Vcore B High Limit in DataSheet */ 80 0x2F, /* VIN0 High Limit in DataSheet */ 81 0x31, /* VIN1 High Limit in DataSheet */ 82 0x33, /* VIN2 High Limit in DataSheet */ 83 0x35, /* VIN3 High Limit in DataSheet */ 84 0x37, /* 5VCC High Limit in DataSheet */ 85 0xB4, /* 5VSB High Limit in DataSheet */ 86 0xB6 /* VBAT High Limit in DataSheet */ 87 }; 88 static const u8 W83792D_REG_IN_MIN[9] = { 89 0x2C, /* Vcore A Low Limit in DataSheet */ 90 0x2E, /* Vcore B Low Limit in DataSheet */ 91 0x30, /* VIN0 Low Limit in DataSheet */ 92 0x32, /* VIN1 Low Limit in DataSheet */ 93 0x34, /* VIN2 Low Limit in DataSheet */ 94 0x36, /* VIN3 Low Limit in DataSheet */ 95 0x38, /* 5VCC Low Limit in DataSheet */ 96 0xB5, /* 5VSB Low Limit in DataSheet */ 97 0xB7 /* VBAT Low Limit in DataSheet */ 98 }; 99 static const u8 W83792D_REG_FAN[7] = { 100 0x28, /* FAN 1 Count in DataSheet */ 101 0x29, /* FAN 2 Count in DataSheet */ 102 0x2A, /* FAN 3 Count in DataSheet */ 103 0xB8, /* FAN 4 Count in DataSheet */ 104 0xB9, /* FAN 5 Count in DataSheet */ 105 0xBA, /* FAN 6 Count in DataSheet */ 106 0xBE /* FAN 7 Count in DataSheet */ 107 }; 108 static const u8 W83792D_REG_FAN_MIN[7] = { 109 0x3B, /* FAN 1 Count Low Limit in DataSheet */ 110 0x3C, /* FAN 2 Count Low Limit in DataSheet */ 111 0x3D, /* FAN 3 Count Low Limit in DataSheet */ 112 0xBB, /* FAN 4 Count Low Limit in DataSheet */ 113 0xBC, /* FAN 5 Count Low Limit in DataSheet */ 114 0xBD, /* FAN 6 Count Low Limit in DataSheet */ 115 0xBF /* FAN 7 Count Low Limit in DataSheet */ 116 }; 117 #define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */ 118 static const u8 W83792D_REG_FAN_DIV[4] = { 119 0x47, /* contains FAN2 and FAN1 Divisor */ 120 0x5B, /* contains FAN4 and FAN3 Divisor */ 121 0x5C, /* contains FAN6 and FAN5 Divisor */ 122 0x9E /* contains FAN7 Divisor. */ 123 }; 124 static const u8 W83792D_REG_PWM[7] = { 125 0x81, /* FAN 1 Duty Cycle, be used to control */ 126 0x83, /* FAN 2 Duty Cycle, be used to control */ 127 0x94, /* FAN 3 Duty Cycle, be used to control */ 128 0xA3, /* FAN 4 Duty Cycle, be used to control */ 129 0xA4, /* FAN 5 Duty Cycle, be used to control */ 130 0xA5, /* FAN 6 Duty Cycle, be used to control */ 131 0xA6 /* FAN 7 Duty Cycle, be used to control */ 132 }; 133 #define W83792D_REG_BANK 0x4E 134 #define W83792D_REG_TEMP2_CONFIG 0xC2 135 #define W83792D_REG_TEMP3_CONFIG 0xCA 136 137 static const u8 W83792D_REG_TEMP1[3] = { 138 0x27, /* TEMP 1 in DataSheet */ 139 0x39, /* TEMP 1 Over in DataSheet */ 140 0x3A, /* TEMP 1 Hyst in DataSheet */ 141 }; 142 143 static const u8 W83792D_REG_TEMP_ADD[2][6] = { 144 { 0xC0, /* TEMP 2 in DataSheet */ 145 0xC1, /* TEMP 2(0.5 deg) in DataSheet */ 146 0xC5, /* TEMP 2 Over High part in DataSheet */ 147 0xC6, /* TEMP 2 Over Low part in DataSheet */ 148 0xC3, /* TEMP 2 Thyst High part in DataSheet */ 149 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */ 150 { 0xC8, /* TEMP 3 in DataSheet */ 151 0xC9, /* TEMP 3(0.5 deg) in DataSheet */ 152 0xCD, /* TEMP 3 Over High part in DataSheet */ 153 0xCE, /* TEMP 3 Over Low part in DataSheet */ 154 0xCB, /* TEMP 3 Thyst High part in DataSheet */ 155 0xCC } /* TEMP 3 Thyst Low part in DataSheet */ 156 }; 157 158 static const u8 W83792D_REG_THERMAL[3] = { 159 0x85, /* SmartFanI: Fan1 target value */ 160 0x86, /* SmartFanI: Fan2 target value */ 161 0x96 /* SmartFanI: Fan3 target value */ 162 }; 163 164 static const u8 W83792D_REG_TOLERANCE[3] = { 165 0x87, /* (bit3-0)SmartFan Fan1 tolerance */ 166 0x87, /* (bit7-4)SmartFan Fan2 tolerance */ 167 0x97 /* (bit3-0)SmartFan Fan3 tolerance */ 168 }; 169 170 static const u8 W83792D_REG_POINTS[3][4] = { 171 { 0x85, /* SmartFanII: Fan1 temp point 1 */ 172 0xE3, /* SmartFanII: Fan1 temp point 2 */ 173 0xE4, /* SmartFanII: Fan1 temp point 3 */ 174 0xE5 }, /* SmartFanII: Fan1 temp point 4 */ 175 { 0x86, /* SmartFanII: Fan2 temp point 1 */ 176 0xE6, /* SmartFanII: Fan2 temp point 2 */ 177 0xE7, /* SmartFanII: Fan2 temp point 3 */ 178 0xE8 }, /* SmartFanII: Fan2 temp point 4 */ 179 { 0x96, /* SmartFanII: Fan3 temp point 1 */ 180 0xE9, /* SmartFanII: Fan3 temp point 2 */ 181 0xEA, /* SmartFanII: Fan3 temp point 3 */ 182 0xEB } /* SmartFanII: Fan3 temp point 4 */ 183 }; 184 185 static const u8 W83792D_REG_LEVELS[3][4] = { 186 { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */ 187 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */ 188 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */ 189 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */ 190 { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */ 191 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */ 192 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */ 193 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */ 194 { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */ 195 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */ 196 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */ 197 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */ 198 }; 199 200 #define W83792D_REG_GPIO_EN 0x1A 201 #define W83792D_REG_CONFIG 0x40 202 #define W83792D_REG_VID_FANDIV 0x47 203 #define W83792D_REG_CHIPID 0x49 204 #define W83792D_REG_WCHIPID 0x58 205 #define W83792D_REG_CHIPMAN 0x4F 206 #define W83792D_REG_PIN 0x4B 207 #define W83792D_REG_I2C_SUBADDR 0x4A 208 209 #define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */ 210 #define W83792D_REG_ALARM2 0xAA /* realtime status register2 */ 211 #define W83792D_REG_ALARM3 0xAB /* realtime status register3 */ 212 #define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */ 213 #define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */ 214 215 /* control in0/in1 's limit modifiability */ 216 #define W83792D_REG_VID_IN_B 0x17 217 218 #define W83792D_REG_VBAT 0x5D 219 #define W83792D_REG_I2C_ADDR 0x48 220 221 /* Conversions. Rounding and limit checking is only done on the TO_REG 222 variants. Note that you should be a bit careful with which arguments 223 these macros are called: arguments may be evaluated more than once. 224 Fixing this is just not worth it. */ 225 #define IN_FROM_REG(nr,val) (((nr)<=1)?(val*2): \ 226 ((((nr)==6)||((nr)==7))?(val*6):(val*4))) 227 #define IN_TO_REG(nr,val) (((nr)<=1)?(val/2): \ 228 ((((nr)==6)||((nr)==7))?(val/6):(val/4))) 229 230 static inline u8 231 FAN_TO_REG(long rpm, int div) 232 { 233 if (rpm == 0) 234 return 255; 235 rpm = SENSORS_LIMIT(rpm, 1, 1000000); 236 return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); 237 } 238 239 #define FAN_FROM_REG(val,div) ((val) == 0 ? -1 : \ 240 ((val) == 255 ? 0 : \ 241 1350000 / ((val) * (div)))) 242 243 /* for temp1 */ 244 #define TEMP1_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \ 245 : (val)) / 1000, 0, 0xff)) 246 #define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000) 247 /* for temp2 and temp3, because they need addtional resolution */ 248 #define TEMP_ADD_FROM_REG(val1, val2) \ 249 ((((val1) & 0x80 ? (val1)-0x100 \ 250 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0)) 251 #define TEMP_ADD_TO_REG_HIGH(val) \ 252 (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \ 253 : (val)) / 1000, 0, 0xff)) 254 #define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00) 255 256 #define DIV_FROM_REG(val) (1 << (val)) 257 258 static inline u8 259 DIV_TO_REG(long val) 260 { 261 int i; 262 val = SENSORS_LIMIT(val, 1, 128) >> 1; 263 for (i = 0; i < 7; i++) { 264 if (val == 0) 265 break; 266 val >>= 1; 267 } 268 return ((u8) i); 269 } 270 271 struct w83792d_data { 272 struct device *hwmon_dev; 273 274 struct mutex update_lock; 275 char valid; /* !=0 if following fields are valid */ 276 unsigned long last_updated; /* In jiffies */ 277 278 /* array of 2 pointers to subclients */ 279 struct i2c_client *lm75[2]; 280 281 u8 in[9]; /* Register value */ 282 u8 in_max[9]; /* Register value */ 283 u8 in_min[9]; /* Register value */ 284 u16 low_bits; /* Additional resolution to voltage in6-0 */ 285 u8 fan[7]; /* Register value */ 286 u8 fan_min[7]; /* Register value */ 287 u8 temp1[3]; /* current, over, thyst */ 288 u8 temp_add[2][6]; /* Register value */ 289 u8 fan_div[7]; /* Register encoding, shifted right */ 290 u8 pwm[7]; /* We only consider the first 3 set of pwm, 291 although 792 chip has 7 set of pwm. */ 292 u8 pwmenable[3]; 293 u32 alarms; /* realtime status register encoding,combined */ 294 u8 chassis; /* Chassis status */ 295 u8 chassis_clear; /* CLR_CHS, clear chassis intrusion detection */ 296 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */ 297 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */ 298 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */ 299 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */ 300 }; 301 302 static int w83792d_probe(struct i2c_client *client, 303 const struct i2c_device_id *id); 304 static int w83792d_detect(struct i2c_client *client, 305 struct i2c_board_info *info); 306 static int w83792d_remove(struct i2c_client *client); 307 static struct w83792d_data *w83792d_update_device(struct device *dev); 308 309 #ifdef DEBUG 310 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev); 311 #endif 312 313 static void w83792d_init_client(struct i2c_client *client); 314 315 static const struct i2c_device_id w83792d_id[] = { 316 { "w83792d", 0 }, 317 { } 318 }; 319 MODULE_DEVICE_TABLE(i2c, w83792d_id); 320 321 static struct i2c_driver w83792d_driver = { 322 .class = I2C_CLASS_HWMON, 323 .driver = { 324 .name = "w83792d", 325 }, 326 .probe = w83792d_probe, 327 .remove = w83792d_remove, 328 .id_table = w83792d_id, 329 .detect = w83792d_detect, 330 .address_list = normal_i2c, 331 }; 332 333 static inline long in_count_from_reg(int nr, struct w83792d_data *data) 334 { 335 /* in7 and in8 do not have low bits, but the formula still works */ 336 return ((data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03)); 337 } 338 339 /* The SMBus locks itself. The Winbond W83792D chip has a bank register, 340 but the driver only accesses registers in bank 0, so we don't have 341 to switch banks and lock access between switches. */ 342 static inline int w83792d_read_value(struct i2c_client *client, u8 reg) 343 { 344 return i2c_smbus_read_byte_data(client, reg); 345 } 346 347 static inline int 348 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value) 349 { 350 return i2c_smbus_write_byte_data(client, reg, value); 351 } 352 353 /* following are the sysfs callback functions */ 354 static ssize_t show_in(struct device *dev, struct device_attribute *attr, 355 char *buf) 356 { 357 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 358 int nr = sensor_attr->index; 359 struct w83792d_data *data = w83792d_update_device(dev); 360 return sprintf(buf,"%ld\n", IN_FROM_REG(nr,(in_count_from_reg(nr, data)))); 361 } 362 363 #define show_in_reg(reg) \ 364 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ 365 char *buf) \ 366 { \ 367 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ 368 int nr = sensor_attr->index; \ 369 struct w83792d_data *data = w83792d_update_device(dev); \ 370 return sprintf(buf,"%ld\n", (long)(IN_FROM_REG(nr, (data->reg[nr])*4))); \ 371 } 372 373 show_in_reg(in_min); 374 show_in_reg(in_max); 375 376 #define store_in_reg(REG, reg) \ 377 static ssize_t store_in_##reg (struct device *dev, \ 378 struct device_attribute *attr, \ 379 const char *buf, size_t count) \ 380 { \ 381 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ 382 int nr = sensor_attr->index; \ 383 struct i2c_client *client = to_i2c_client(dev); \ 384 struct w83792d_data *data = i2c_get_clientdata(client); \ 385 u32 val; \ 386 \ 387 val = simple_strtoul(buf, NULL, 10); \ 388 mutex_lock(&data->update_lock); \ 389 data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \ 390 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \ 391 mutex_unlock(&data->update_lock); \ 392 \ 393 return count; \ 394 } 395 store_in_reg(MIN, min); 396 store_in_reg(MAX, max); 397 398 #define show_fan_reg(reg) \ 399 static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \ 400 char *buf) \ 401 { \ 402 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ 403 int nr = sensor_attr->index - 1; \ 404 struct w83792d_data *data = w83792d_update_device(dev); \ 405 return sprintf(buf,"%d\n", \ 406 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \ 407 } 408 409 show_fan_reg(fan); 410 show_fan_reg(fan_min); 411 412 static ssize_t 413 store_fan_min(struct device *dev, struct device_attribute *attr, 414 const char *buf, size_t count) 415 { 416 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 417 int nr = sensor_attr->index - 1; 418 struct i2c_client *client = to_i2c_client(dev); 419 struct w83792d_data *data = i2c_get_clientdata(client); 420 u32 val; 421 422 val = simple_strtoul(buf, NULL, 10); 423 mutex_lock(&data->update_lock); 424 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); 425 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], 426 data->fan_min[nr]); 427 mutex_unlock(&data->update_lock); 428 429 return count; 430 } 431 432 static ssize_t 433 show_fan_div(struct device *dev, struct device_attribute *attr, 434 char *buf) 435 { 436 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 437 int nr = sensor_attr->index; 438 struct w83792d_data *data = w83792d_update_device(dev); 439 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1])); 440 } 441 442 /* Note: we save and restore the fan minimum here, because its value is 443 determined in part by the fan divisor. This follows the principle of 444 least surprise; the user doesn't expect the fan minimum to change just 445 because the divisor changed. */ 446 static ssize_t 447 store_fan_div(struct device *dev, struct device_attribute *attr, 448 const char *buf, size_t count) 449 { 450 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 451 int nr = sensor_attr->index - 1; 452 struct i2c_client *client = to_i2c_client(dev); 453 struct w83792d_data *data = i2c_get_clientdata(client); 454 unsigned long min; 455 /*u8 reg;*/ 456 u8 fan_div_reg = 0; 457 u8 tmp_fan_div; 458 459 /* Save fan_min */ 460 mutex_lock(&data->update_lock); 461 min = FAN_FROM_REG(data->fan_min[nr], 462 DIV_FROM_REG(data->fan_div[nr])); 463 464 data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10)); 465 466 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]); 467 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8; 468 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70) 469 : ((data->fan_div[nr]) & 0x07); 470 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1], 471 fan_div_reg | tmp_fan_div); 472 473 /* Restore fan_min */ 474 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); 475 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]); 476 mutex_unlock(&data->update_lock); 477 478 return count; 479 } 480 481 /* read/write the temperature1, includes measured value and limits */ 482 483 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr, 484 char *buf) 485 { 486 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 487 int nr = sensor_attr->index; 488 struct w83792d_data *data = w83792d_update_device(dev); 489 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr])); 490 } 491 492 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr, 493 const char *buf, size_t count) 494 { 495 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 496 int nr = sensor_attr->index; 497 struct i2c_client *client = to_i2c_client(dev); 498 struct w83792d_data *data = i2c_get_clientdata(client); 499 s32 val; 500 501 val = simple_strtol(buf, NULL, 10); 502 mutex_lock(&data->update_lock); 503 data->temp1[nr] = TEMP1_TO_REG(val); 504 w83792d_write_value(client, W83792D_REG_TEMP1[nr], 505 data->temp1[nr]); 506 mutex_unlock(&data->update_lock); 507 508 return count; 509 } 510 511 /* read/write the temperature2-3, includes measured value and limits */ 512 513 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr, 514 char *buf) 515 { 516 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 517 int nr = sensor_attr->nr; 518 int index = sensor_attr->index; 519 struct w83792d_data *data = w83792d_update_device(dev); 520 return sprintf(buf,"%ld\n", 521 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index], 522 data->temp_add[nr][index+1])); 523 } 524 525 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr, 526 const char *buf, size_t count) 527 { 528 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 529 int nr = sensor_attr->nr; 530 int index = sensor_attr->index; 531 struct i2c_client *client = to_i2c_client(dev); 532 struct w83792d_data *data = i2c_get_clientdata(client); 533 s32 val; 534 535 val = simple_strtol(buf, NULL, 10); 536 mutex_lock(&data->update_lock); 537 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val); 538 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val); 539 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index], 540 data->temp_add[nr][index]); 541 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1], 542 data->temp_add[nr][index+1]); 543 mutex_unlock(&data->update_lock); 544 545 return count; 546 } 547 548 /* get reatime status of all sensors items: voltage, temp, fan */ 549 static ssize_t 550 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) 551 { 552 struct w83792d_data *data = w83792d_update_device(dev); 553 return sprintf(buf, "%d\n", data->alarms); 554 } 555 556 static ssize_t show_alarm(struct device *dev, 557 struct device_attribute *attr, char *buf) 558 { 559 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 560 int nr = sensor_attr->index; 561 struct w83792d_data *data = w83792d_update_device(dev); 562 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1); 563 } 564 565 static ssize_t 566 show_pwm(struct device *dev, struct device_attribute *attr, 567 char *buf) 568 { 569 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 570 int nr = sensor_attr->index; 571 struct w83792d_data *data = w83792d_update_device(dev); 572 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4); 573 } 574 575 static ssize_t 576 show_pwmenable(struct device *dev, struct device_attribute *attr, 577 char *buf) 578 { 579 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 580 int nr = sensor_attr->index - 1; 581 struct w83792d_data *data = w83792d_update_device(dev); 582 long pwm_enable_tmp = 1; 583 584 switch (data->pwmenable[nr]) { 585 case 0: 586 pwm_enable_tmp = 1; /* manual mode */ 587 break; 588 case 1: 589 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */ 590 break; 591 case 2: 592 pwm_enable_tmp = 2; /* Smart Fan II */ 593 break; 594 } 595 596 return sprintf(buf, "%ld\n", pwm_enable_tmp); 597 } 598 599 static ssize_t 600 store_pwm(struct device *dev, struct device_attribute *attr, 601 const char *buf, size_t count) 602 { 603 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 604 int nr = sensor_attr->index; 605 struct i2c_client *client = to_i2c_client(dev); 606 struct w83792d_data *data = i2c_get_clientdata(client); 607 u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255) >> 4; 608 609 mutex_lock(&data->update_lock); 610 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0; 611 data->pwm[nr] = val; 612 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 613 mutex_unlock(&data->update_lock); 614 615 return count; 616 } 617 618 static ssize_t 619 store_pwmenable(struct device *dev, struct device_attribute *attr, 620 const char *buf, size_t count) 621 { 622 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 623 int nr = sensor_attr->index - 1; 624 struct i2c_client *client = to_i2c_client(dev); 625 struct w83792d_data *data = i2c_get_clientdata(client); 626 u32 val; 627 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp; 628 629 val = simple_strtoul(buf, NULL, 10); 630 if (val < 1 || val > 3) 631 return -EINVAL; 632 633 mutex_lock(&data->update_lock); 634 switch (val) { 635 case 1: 636 data->pwmenable[nr] = 0; /* manual mode */ 637 break; 638 case 2: 639 data->pwmenable[nr] = 2; /* Smart Fan II */ 640 break; 641 case 3: 642 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */ 643 break; 644 } 645 cfg1_tmp = data->pwmenable[0]; 646 cfg2_tmp = (data->pwmenable[1]) << 2; 647 cfg3_tmp = (data->pwmenable[2]) << 4; 648 cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0; 649 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp; 650 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp); 651 mutex_unlock(&data->update_lock); 652 653 return count; 654 } 655 656 static ssize_t 657 show_pwm_mode(struct device *dev, struct device_attribute *attr, 658 char *buf) 659 { 660 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 661 int nr = sensor_attr->index; 662 struct w83792d_data *data = w83792d_update_device(dev); 663 return sprintf(buf, "%d\n", data->pwm[nr] >> 7); 664 } 665 666 static ssize_t 667 store_pwm_mode(struct device *dev, struct device_attribute *attr, 668 const char *buf, size_t count) 669 { 670 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 671 int nr = sensor_attr->index; 672 struct i2c_client *client = to_i2c_client(dev); 673 struct w83792d_data *data = i2c_get_clientdata(client); 674 u32 val; 675 676 val = simple_strtoul(buf, NULL, 10); 677 if (val != 0 && val != 1) 678 return -EINVAL; 679 680 mutex_lock(&data->update_lock); 681 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]); 682 if (val) { /* PWM mode */ 683 data->pwm[nr] |= 0x80; 684 } else { /* DC mode */ 685 data->pwm[nr] &= 0x7f; 686 } 687 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 688 mutex_unlock(&data->update_lock); 689 690 return count; 691 } 692 693 static ssize_t 694 show_regs_chassis(struct device *dev, struct device_attribute *attr, 695 char *buf) 696 { 697 struct w83792d_data *data = w83792d_update_device(dev); 698 return sprintf(buf, "%d\n", data->chassis); 699 } 700 701 static ssize_t 702 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf) 703 { 704 struct w83792d_data *data = w83792d_update_device(dev); 705 return sprintf(buf, "%d\n", data->chassis_clear); 706 } 707 708 static ssize_t 709 store_chassis_clear(struct device *dev, struct device_attribute *attr, 710 const char *buf, size_t count) 711 { 712 struct i2c_client *client = to_i2c_client(dev); 713 struct w83792d_data *data = i2c_get_clientdata(client); 714 u32 val; 715 u8 temp1 = 0, temp2 = 0; 716 717 val = simple_strtoul(buf, NULL, 10); 718 mutex_lock(&data->update_lock); 719 data->chassis_clear = SENSORS_LIMIT(val, 0 ,1); 720 temp1 = ((data->chassis_clear) << 7) & 0x80; 721 temp2 = w83792d_read_value(client, 722 W83792D_REG_CHASSIS_CLR) & 0x7f; 723 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2); 724 mutex_unlock(&data->update_lock); 725 726 return count; 727 } 728 729 /* For Smart Fan I / Thermal Cruise */ 730 static ssize_t 731 show_thermal_cruise(struct device *dev, struct device_attribute *attr, 732 char *buf) 733 { 734 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 735 int nr = sensor_attr->index; 736 struct w83792d_data *data = w83792d_update_device(dev); 737 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]); 738 } 739 740 static ssize_t 741 store_thermal_cruise(struct device *dev, struct device_attribute *attr, 742 const char *buf, size_t count) 743 { 744 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 745 int nr = sensor_attr->index - 1; 746 struct i2c_client *client = to_i2c_client(dev); 747 struct w83792d_data *data = i2c_get_clientdata(client); 748 u32 val; 749 u8 target_tmp=0, target_mask=0; 750 751 val = simple_strtoul(buf, NULL, 10); 752 target_tmp = val; 753 target_tmp = target_tmp & 0x7f; 754 mutex_lock(&data->update_lock); 755 target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80; 756 data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255); 757 w83792d_write_value(client, W83792D_REG_THERMAL[nr], 758 (data->thermal_cruise[nr]) | target_mask); 759 mutex_unlock(&data->update_lock); 760 761 return count; 762 } 763 764 /* For Smart Fan I/Thermal Cruise and Smart Fan II */ 765 static ssize_t 766 show_tolerance(struct device *dev, struct device_attribute *attr, 767 char *buf) 768 { 769 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 770 int nr = sensor_attr->index; 771 struct w83792d_data *data = w83792d_update_device(dev); 772 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]); 773 } 774 775 static ssize_t 776 store_tolerance(struct device *dev, struct device_attribute *attr, 777 const char *buf, size_t count) 778 { 779 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 780 int nr = sensor_attr->index - 1; 781 struct i2c_client *client = to_i2c_client(dev); 782 struct w83792d_data *data = i2c_get_clientdata(client); 783 u32 val; 784 u8 tol_tmp, tol_mask; 785 786 val = simple_strtoul(buf, NULL, 10); 787 mutex_lock(&data->update_lock); 788 tol_mask = w83792d_read_value(client, 789 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0); 790 tol_tmp = SENSORS_LIMIT(val, 0, 15); 791 tol_tmp &= 0x0f; 792 data->tolerance[nr] = tol_tmp; 793 if (nr == 1) { 794 tol_tmp <<= 4; 795 } 796 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr], 797 tol_mask | tol_tmp); 798 mutex_unlock(&data->update_lock); 799 800 return count; 801 } 802 803 /* For Smart Fan II */ 804 static ssize_t 805 show_sf2_point(struct device *dev, struct device_attribute *attr, 806 char *buf) 807 { 808 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 809 int nr = sensor_attr->nr; 810 int index = sensor_attr->index; 811 struct w83792d_data *data = w83792d_update_device(dev); 812 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]); 813 } 814 815 static ssize_t 816 store_sf2_point(struct device *dev, struct device_attribute *attr, 817 const char *buf, size_t count) 818 { 819 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 820 int nr = sensor_attr->nr - 1; 821 int index = sensor_attr->index - 1; 822 struct i2c_client *client = to_i2c_client(dev); 823 struct w83792d_data *data = i2c_get_clientdata(client); 824 u32 val; 825 u8 mask_tmp = 0; 826 827 val = simple_strtoul(buf, NULL, 10); 828 mutex_lock(&data->update_lock); 829 data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127); 830 mask_tmp = w83792d_read_value(client, 831 W83792D_REG_POINTS[index][nr]) & 0x80; 832 w83792d_write_value(client, W83792D_REG_POINTS[index][nr], 833 mask_tmp|data->sf2_points[index][nr]); 834 mutex_unlock(&data->update_lock); 835 836 return count; 837 } 838 839 static ssize_t 840 show_sf2_level(struct device *dev, struct device_attribute *attr, 841 char *buf) 842 { 843 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 844 int nr = sensor_attr->nr; 845 int index = sensor_attr->index; 846 struct w83792d_data *data = w83792d_update_device(dev); 847 return sprintf(buf, "%d\n", 848 (((data->sf2_levels[index-1][nr]) * 100) / 15)); 849 } 850 851 static ssize_t 852 store_sf2_level(struct device *dev, struct device_attribute *attr, 853 const char *buf, size_t count) 854 { 855 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 856 int nr = sensor_attr->nr; 857 int index = sensor_attr->index - 1; 858 struct i2c_client *client = to_i2c_client(dev); 859 struct w83792d_data *data = i2c_get_clientdata(client); 860 u32 val; 861 u8 mask_tmp=0, level_tmp=0; 862 863 val = simple_strtoul(buf, NULL, 10); 864 mutex_lock(&data->update_lock); 865 data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15); 866 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr]) 867 & ((nr==3) ? 0xf0 : 0x0f); 868 if (nr==3) { 869 level_tmp = data->sf2_levels[index][nr]; 870 } else { 871 level_tmp = data->sf2_levels[index][nr] << 4; 872 } 873 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp); 874 mutex_unlock(&data->update_lock); 875 876 return count; 877 } 878 879 880 static int 881 w83792d_detect_subclients(struct i2c_client *new_client) 882 { 883 int i, id, err; 884 int address = new_client->addr; 885 u8 val; 886 struct i2c_adapter *adapter = new_client->adapter; 887 struct w83792d_data *data = i2c_get_clientdata(new_client); 888 889 id = i2c_adapter_id(adapter); 890 if (force_subclients[0] == id && force_subclients[1] == address) { 891 for (i = 2; i <= 3; i++) { 892 if (force_subclients[i] < 0x48 || 893 force_subclients[i] > 0x4f) { 894 dev_err(&new_client->dev, "invalid subclient " 895 "address %d; must be 0x48-0x4f\n", 896 force_subclients[i]); 897 err = -ENODEV; 898 goto ERROR_SC_0; 899 } 900 } 901 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR, 902 (force_subclients[2] & 0x07) | 903 ((force_subclients[3] & 0x07) << 4)); 904 } 905 906 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR); 907 if (!(val & 0x08)) { 908 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7)); 909 } 910 if (!(val & 0x80)) { 911 if ((data->lm75[0] != NULL) && 912 ((val & 0x7) == ((val >> 4) & 0x7))) { 913 dev_err(&new_client->dev, "duplicate addresses 0x%x, " 914 "use force_subclient\n", data->lm75[0]->addr); 915 err = -ENODEV; 916 goto ERROR_SC_1; 917 } 918 data->lm75[1] = i2c_new_dummy(adapter, 919 0x48 + ((val >> 4) & 0x7)); 920 } 921 922 return 0; 923 924 /* Undo inits in case of errors */ 925 926 ERROR_SC_1: 927 if (data->lm75[0] != NULL) 928 i2c_unregister_device(data->lm75[0]); 929 ERROR_SC_0: 930 return err; 931 } 932 933 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); 934 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); 935 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); 936 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); 937 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4); 938 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5); 939 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6); 940 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7); 941 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8); 942 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO, 943 show_in_min, store_in_min, 0); 944 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, 945 show_in_min, store_in_min, 1); 946 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, 947 show_in_min, store_in_min, 2); 948 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO, 949 show_in_min, store_in_min, 3); 950 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO, 951 show_in_min, store_in_min, 4); 952 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO, 953 show_in_min, store_in_min, 5); 954 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO, 955 show_in_min, store_in_min, 6); 956 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO, 957 show_in_min, store_in_min, 7); 958 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO, 959 show_in_min, store_in_min, 8); 960 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO, 961 show_in_max, store_in_max, 0); 962 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, 963 show_in_max, store_in_max, 1); 964 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, 965 show_in_max, store_in_max, 2); 966 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO, 967 show_in_max, store_in_max, 3); 968 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO, 969 show_in_max, store_in_max, 4); 970 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO, 971 show_in_max, store_in_max, 5); 972 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO, 973 show_in_max, store_in_max, 6); 974 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO, 975 show_in_max, store_in_max, 7); 976 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO, 977 show_in_max, store_in_max, 8); 978 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0); 979 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0); 980 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0); 981 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, 982 show_temp1, store_temp1, 0, 1); 983 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23, 984 store_temp23, 0, 2); 985 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23, 986 store_temp23, 1, 2); 987 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, 988 show_temp1, store_temp1, 0, 2); 989 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, 990 show_temp23, store_temp23, 0, 4); 991 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, 992 show_temp23, store_temp23, 1, 4); 993 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); 994 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); 995 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); 996 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2); 997 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3); 998 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4); 999 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5); 1000 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6); 1001 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7); 1002 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8); 1003 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9); 1004 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10); 1005 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11); 1006 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12); 1007 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15); 1008 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19); 1009 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20); 1010 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21); 1011 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22); 1012 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23); 1013 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL); 1014 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR, 1015 show_chassis_clear, store_chassis_clear); 1016 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0); 1017 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1); 1018 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2); 1019 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, 1020 show_pwmenable, store_pwmenable, 1); 1021 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, 1022 show_pwmenable, store_pwmenable, 2); 1023 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, 1024 show_pwmenable, store_pwmenable, 3); 1025 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, 1026 show_pwm_mode, store_pwm_mode, 0); 1027 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, 1028 show_pwm_mode, store_pwm_mode, 1); 1029 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, 1030 show_pwm_mode, store_pwm_mode, 2); 1031 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO, 1032 show_tolerance, store_tolerance, 1); 1033 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO, 1034 show_tolerance, store_tolerance, 2); 1035 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO, 1036 show_tolerance, store_tolerance, 3); 1037 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO, 1038 show_thermal_cruise, store_thermal_cruise, 1); 1039 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO, 1040 show_thermal_cruise, store_thermal_cruise, 2); 1041 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO, 1042 show_thermal_cruise, store_thermal_cruise, 3); 1043 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR, 1044 show_sf2_point, store_sf2_point, 1, 1); 1045 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR, 1046 show_sf2_point, store_sf2_point, 2, 1); 1047 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR, 1048 show_sf2_point, store_sf2_point, 3, 1); 1049 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR, 1050 show_sf2_point, store_sf2_point, 4, 1); 1051 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR, 1052 show_sf2_point, store_sf2_point, 1, 2); 1053 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR, 1054 show_sf2_point, store_sf2_point, 2, 2); 1055 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR, 1056 show_sf2_point, store_sf2_point, 3, 2); 1057 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR, 1058 show_sf2_point, store_sf2_point, 4, 2); 1059 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR, 1060 show_sf2_point, store_sf2_point, 1, 3); 1061 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR, 1062 show_sf2_point, store_sf2_point, 2, 3); 1063 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR, 1064 show_sf2_point, store_sf2_point, 3, 3); 1065 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR, 1066 show_sf2_point, store_sf2_point, 4, 3); 1067 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR, 1068 show_sf2_level, store_sf2_level, 1, 1); 1069 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR, 1070 show_sf2_level, store_sf2_level, 2, 1); 1071 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR, 1072 show_sf2_level, store_sf2_level, 3, 1); 1073 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR, 1074 show_sf2_level, store_sf2_level, 1, 2); 1075 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR, 1076 show_sf2_level, store_sf2_level, 2, 2); 1077 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR, 1078 show_sf2_level, store_sf2_level, 3, 2); 1079 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR, 1080 show_sf2_level, store_sf2_level, 1, 3); 1081 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR, 1082 show_sf2_level, store_sf2_level, 2, 3); 1083 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR, 1084 show_sf2_level, store_sf2_level, 3, 3); 1085 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1); 1086 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2); 1087 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3); 1088 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4); 1089 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5); 1090 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6); 1091 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7); 1092 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, 1093 show_fan_min, store_fan_min, 1); 1094 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, 1095 show_fan_min, store_fan_min, 2); 1096 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, 1097 show_fan_min, store_fan_min, 3); 1098 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, 1099 show_fan_min, store_fan_min, 4); 1100 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO, 1101 show_fan_min, store_fan_min, 5); 1102 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO, 1103 show_fan_min, store_fan_min, 6); 1104 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO, 1105 show_fan_min, store_fan_min, 7); 1106 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO, 1107 show_fan_div, store_fan_div, 1); 1108 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO, 1109 show_fan_div, store_fan_div, 2); 1110 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO, 1111 show_fan_div, store_fan_div, 3); 1112 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO, 1113 show_fan_div, store_fan_div, 4); 1114 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO, 1115 show_fan_div, store_fan_div, 5); 1116 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO, 1117 show_fan_div, store_fan_div, 6); 1118 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO, 1119 show_fan_div, store_fan_div, 7); 1120 1121 static struct attribute *w83792d_attributes_fan[4][5] = { 1122 { 1123 &sensor_dev_attr_fan4_input.dev_attr.attr, 1124 &sensor_dev_attr_fan4_min.dev_attr.attr, 1125 &sensor_dev_attr_fan4_div.dev_attr.attr, 1126 &sensor_dev_attr_fan4_alarm.dev_attr.attr, 1127 NULL 1128 }, { 1129 &sensor_dev_attr_fan5_input.dev_attr.attr, 1130 &sensor_dev_attr_fan5_min.dev_attr.attr, 1131 &sensor_dev_attr_fan5_div.dev_attr.attr, 1132 &sensor_dev_attr_fan5_alarm.dev_attr.attr, 1133 NULL 1134 }, { 1135 &sensor_dev_attr_fan6_input.dev_attr.attr, 1136 &sensor_dev_attr_fan6_min.dev_attr.attr, 1137 &sensor_dev_attr_fan6_div.dev_attr.attr, 1138 &sensor_dev_attr_fan6_alarm.dev_attr.attr, 1139 NULL 1140 }, { 1141 &sensor_dev_attr_fan7_input.dev_attr.attr, 1142 &sensor_dev_attr_fan7_min.dev_attr.attr, 1143 &sensor_dev_attr_fan7_div.dev_attr.attr, 1144 &sensor_dev_attr_fan7_alarm.dev_attr.attr, 1145 NULL 1146 } 1147 }; 1148 1149 static const struct attribute_group w83792d_group_fan[4] = { 1150 { .attrs = w83792d_attributes_fan[0] }, 1151 { .attrs = w83792d_attributes_fan[1] }, 1152 { .attrs = w83792d_attributes_fan[2] }, 1153 { .attrs = w83792d_attributes_fan[3] }, 1154 }; 1155 1156 static struct attribute *w83792d_attributes[] = { 1157 &sensor_dev_attr_in0_input.dev_attr.attr, 1158 &sensor_dev_attr_in0_max.dev_attr.attr, 1159 &sensor_dev_attr_in0_min.dev_attr.attr, 1160 &sensor_dev_attr_in1_input.dev_attr.attr, 1161 &sensor_dev_attr_in1_max.dev_attr.attr, 1162 &sensor_dev_attr_in1_min.dev_attr.attr, 1163 &sensor_dev_attr_in2_input.dev_attr.attr, 1164 &sensor_dev_attr_in2_max.dev_attr.attr, 1165 &sensor_dev_attr_in2_min.dev_attr.attr, 1166 &sensor_dev_attr_in3_input.dev_attr.attr, 1167 &sensor_dev_attr_in3_max.dev_attr.attr, 1168 &sensor_dev_attr_in3_min.dev_attr.attr, 1169 &sensor_dev_attr_in4_input.dev_attr.attr, 1170 &sensor_dev_attr_in4_max.dev_attr.attr, 1171 &sensor_dev_attr_in4_min.dev_attr.attr, 1172 &sensor_dev_attr_in5_input.dev_attr.attr, 1173 &sensor_dev_attr_in5_max.dev_attr.attr, 1174 &sensor_dev_attr_in5_min.dev_attr.attr, 1175 &sensor_dev_attr_in6_input.dev_attr.attr, 1176 &sensor_dev_attr_in6_max.dev_attr.attr, 1177 &sensor_dev_attr_in6_min.dev_attr.attr, 1178 &sensor_dev_attr_in7_input.dev_attr.attr, 1179 &sensor_dev_attr_in7_max.dev_attr.attr, 1180 &sensor_dev_attr_in7_min.dev_attr.attr, 1181 &sensor_dev_attr_in8_input.dev_attr.attr, 1182 &sensor_dev_attr_in8_max.dev_attr.attr, 1183 &sensor_dev_attr_in8_min.dev_attr.attr, 1184 &sensor_dev_attr_in0_alarm.dev_attr.attr, 1185 &sensor_dev_attr_in1_alarm.dev_attr.attr, 1186 &sensor_dev_attr_in2_alarm.dev_attr.attr, 1187 &sensor_dev_attr_in3_alarm.dev_attr.attr, 1188 &sensor_dev_attr_in4_alarm.dev_attr.attr, 1189 &sensor_dev_attr_in5_alarm.dev_attr.attr, 1190 &sensor_dev_attr_in6_alarm.dev_attr.attr, 1191 &sensor_dev_attr_in7_alarm.dev_attr.attr, 1192 &sensor_dev_attr_in8_alarm.dev_attr.attr, 1193 &sensor_dev_attr_temp1_input.dev_attr.attr, 1194 &sensor_dev_attr_temp1_max.dev_attr.attr, 1195 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, 1196 &sensor_dev_attr_temp2_input.dev_attr.attr, 1197 &sensor_dev_attr_temp2_max.dev_attr.attr, 1198 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, 1199 &sensor_dev_attr_temp3_input.dev_attr.attr, 1200 &sensor_dev_attr_temp3_max.dev_attr.attr, 1201 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, 1202 &sensor_dev_attr_temp1_alarm.dev_attr.attr, 1203 &sensor_dev_attr_temp2_alarm.dev_attr.attr, 1204 &sensor_dev_attr_temp3_alarm.dev_attr.attr, 1205 &sensor_dev_attr_pwm1.dev_attr.attr, 1206 &sensor_dev_attr_pwm1_mode.dev_attr.attr, 1207 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 1208 &sensor_dev_attr_pwm2.dev_attr.attr, 1209 &sensor_dev_attr_pwm2_mode.dev_attr.attr, 1210 &sensor_dev_attr_pwm2_enable.dev_attr.attr, 1211 &sensor_dev_attr_pwm3.dev_attr.attr, 1212 &sensor_dev_attr_pwm3_mode.dev_attr.attr, 1213 &sensor_dev_attr_pwm3_enable.dev_attr.attr, 1214 &dev_attr_alarms.attr, 1215 &dev_attr_chassis.attr, 1216 &dev_attr_chassis_clear.attr, 1217 &sensor_dev_attr_tolerance1.dev_attr.attr, 1218 &sensor_dev_attr_thermal_cruise1.dev_attr.attr, 1219 &sensor_dev_attr_tolerance2.dev_attr.attr, 1220 &sensor_dev_attr_thermal_cruise2.dev_attr.attr, 1221 &sensor_dev_attr_tolerance3.dev_attr.attr, 1222 &sensor_dev_attr_thermal_cruise3.dev_attr.attr, 1223 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr, 1224 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr, 1225 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr, 1226 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr, 1227 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr, 1228 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr, 1229 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr, 1230 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr, 1231 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr, 1232 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr, 1233 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr, 1234 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr, 1235 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr, 1236 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr, 1237 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr, 1238 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr, 1239 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr, 1240 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr, 1241 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr, 1242 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr, 1243 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr, 1244 &sensor_dev_attr_fan1_input.dev_attr.attr, 1245 &sensor_dev_attr_fan1_min.dev_attr.attr, 1246 &sensor_dev_attr_fan1_div.dev_attr.attr, 1247 &sensor_dev_attr_fan1_alarm.dev_attr.attr, 1248 &sensor_dev_attr_fan2_input.dev_attr.attr, 1249 &sensor_dev_attr_fan2_min.dev_attr.attr, 1250 &sensor_dev_attr_fan2_div.dev_attr.attr, 1251 &sensor_dev_attr_fan2_alarm.dev_attr.attr, 1252 &sensor_dev_attr_fan3_input.dev_attr.attr, 1253 &sensor_dev_attr_fan3_min.dev_attr.attr, 1254 &sensor_dev_attr_fan3_div.dev_attr.attr, 1255 &sensor_dev_attr_fan3_alarm.dev_attr.attr, 1256 NULL 1257 }; 1258 1259 static const struct attribute_group w83792d_group = { 1260 .attrs = w83792d_attributes, 1261 }; 1262 1263 /* Return 0 if detection is successful, -ENODEV otherwise */ 1264 static int 1265 w83792d_detect(struct i2c_client *client, struct i2c_board_info *info) 1266 { 1267 struct i2c_adapter *adapter = client->adapter; 1268 int val1, val2; 1269 unsigned short address = client->addr; 1270 1271 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { 1272 return -ENODEV; 1273 } 1274 1275 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) 1276 return -ENODEV; 1277 1278 val1 = w83792d_read_value(client, W83792D_REG_BANK); 1279 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1280 /* Check for Winbond ID if in bank 0 */ 1281 if (!(val1 & 0x07)) { /* is Bank0 */ 1282 if ((!(val1 & 0x80) && val2 != 0xa3) || 1283 ( (val1 & 0x80) && val2 != 0x5c)) 1284 return -ENODEV; 1285 } 1286 /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR 1287 should match */ 1288 if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address) 1289 return -ENODEV; 1290 1291 /* Put it now into bank 0 and Vendor ID High Byte */ 1292 w83792d_write_value(client, 1293 W83792D_REG_BANK, 1294 (w83792d_read_value(client, 1295 W83792D_REG_BANK) & 0x78) | 0x80); 1296 1297 /* Determine the chip type. */ 1298 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID); 1299 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1300 if (val1 != 0x7a || val2 != 0x5c) 1301 return -ENODEV; 1302 1303 strlcpy(info->type, "w83792d", I2C_NAME_SIZE); 1304 1305 return 0; 1306 } 1307 1308 static int 1309 w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id) 1310 { 1311 struct w83792d_data *data; 1312 struct device *dev = &client->dev; 1313 int i, val1, err; 1314 1315 data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL); 1316 if (!data) { 1317 err = -ENOMEM; 1318 goto ERROR0; 1319 } 1320 1321 i2c_set_clientdata(client, data); 1322 data->valid = 0; 1323 mutex_init(&data->update_lock); 1324 1325 err = w83792d_detect_subclients(client); 1326 if (err) 1327 goto ERROR1; 1328 1329 /* Initialize the chip */ 1330 w83792d_init_client(client); 1331 1332 /* A few vars need to be filled upon startup */ 1333 for (i = 0; i < 7; i++) { 1334 data->fan_min[i] = w83792d_read_value(client, 1335 W83792D_REG_FAN_MIN[i]); 1336 } 1337 1338 /* Register sysfs hooks */ 1339 if ((err = sysfs_create_group(&dev->kobj, &w83792d_group))) 1340 goto ERROR3; 1341 1342 /* Read GPIO enable register to check if pins for fan 4,5 are used as 1343 GPIO */ 1344 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN); 1345 1346 if (!(val1 & 0x40)) 1347 if ((err = sysfs_create_group(&dev->kobj, 1348 &w83792d_group_fan[0]))) 1349 goto exit_remove_files; 1350 1351 if (!(val1 & 0x20)) 1352 if ((err = sysfs_create_group(&dev->kobj, 1353 &w83792d_group_fan[1]))) 1354 goto exit_remove_files; 1355 1356 val1 = w83792d_read_value(client, W83792D_REG_PIN); 1357 if (val1 & 0x40) 1358 if ((err = sysfs_create_group(&dev->kobj, 1359 &w83792d_group_fan[2]))) 1360 goto exit_remove_files; 1361 1362 if (val1 & 0x04) 1363 if ((err = sysfs_create_group(&dev->kobj, 1364 &w83792d_group_fan[3]))) 1365 goto exit_remove_files; 1366 1367 data->hwmon_dev = hwmon_device_register(dev); 1368 if (IS_ERR(data->hwmon_dev)) { 1369 err = PTR_ERR(data->hwmon_dev); 1370 goto exit_remove_files; 1371 } 1372 1373 return 0; 1374 1375 exit_remove_files: 1376 sysfs_remove_group(&dev->kobj, &w83792d_group); 1377 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1378 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]); 1379 ERROR3: 1380 if (data->lm75[0] != NULL) 1381 i2c_unregister_device(data->lm75[0]); 1382 if (data->lm75[1] != NULL) 1383 i2c_unregister_device(data->lm75[1]); 1384 ERROR1: 1385 kfree(data); 1386 ERROR0: 1387 return err; 1388 } 1389 1390 static int 1391 w83792d_remove(struct i2c_client *client) 1392 { 1393 struct w83792d_data *data = i2c_get_clientdata(client); 1394 int i; 1395 1396 hwmon_device_unregister(data->hwmon_dev); 1397 sysfs_remove_group(&client->dev.kobj, &w83792d_group); 1398 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1399 sysfs_remove_group(&client->dev.kobj, 1400 &w83792d_group_fan[i]); 1401 1402 if (data->lm75[0] != NULL) 1403 i2c_unregister_device(data->lm75[0]); 1404 if (data->lm75[1] != NULL) 1405 i2c_unregister_device(data->lm75[1]); 1406 1407 kfree(data); 1408 return 0; 1409 } 1410 1411 static void 1412 w83792d_init_client(struct i2c_client *client) 1413 { 1414 u8 temp2_cfg, temp3_cfg, vid_in_b; 1415 1416 if (init) { 1417 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80); 1418 } 1419 /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0): 1420 W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of 1421 vin0/vin1 can be modified by user; 1422 W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of 1423 vin0/vin1 auto-updated, can NOT be modified by user. */ 1424 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B); 1425 w83792d_write_value(client, W83792D_REG_VID_IN_B, 1426 vid_in_b & 0xbf); 1427 1428 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG); 1429 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG); 1430 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG, 1431 temp2_cfg & 0xe6); 1432 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG, 1433 temp3_cfg & 0xe6); 1434 1435 /* Start monitoring */ 1436 w83792d_write_value(client, W83792D_REG_CONFIG, 1437 (w83792d_read_value(client, 1438 W83792D_REG_CONFIG) & 0xf7) 1439 | 0x01); 1440 } 1441 1442 static struct w83792d_data *w83792d_update_device(struct device *dev) 1443 { 1444 struct i2c_client *client = to_i2c_client(dev); 1445 struct w83792d_data *data = i2c_get_clientdata(client); 1446 int i, j; 1447 u8 reg_array_tmp[4], reg_tmp; 1448 1449 mutex_lock(&data->update_lock); 1450 1451 if (time_after 1452 (jiffies - data->last_updated, (unsigned long) (HZ * 3)) 1453 || time_before(jiffies, data->last_updated) || !data->valid) { 1454 dev_dbg(dev, "Starting device update\n"); 1455 1456 /* Update the voltages measured value and limits */ 1457 for (i = 0; i < 9; i++) { 1458 data->in[i] = w83792d_read_value(client, 1459 W83792D_REG_IN[i]); 1460 data->in_max[i] = w83792d_read_value(client, 1461 W83792D_REG_IN_MAX[i]); 1462 data->in_min[i] = w83792d_read_value(client, 1463 W83792D_REG_IN_MIN[i]); 1464 } 1465 data->low_bits = w83792d_read_value(client, 1466 W83792D_REG_LOW_BITS1) + 1467 (w83792d_read_value(client, 1468 W83792D_REG_LOW_BITS2) << 8); 1469 for (i = 0; i < 7; i++) { 1470 /* Update the Fan measured value and limits */ 1471 data->fan[i] = w83792d_read_value(client, 1472 W83792D_REG_FAN[i]); 1473 data->fan_min[i] = w83792d_read_value(client, 1474 W83792D_REG_FAN_MIN[i]); 1475 /* Update the PWM/DC Value and PWM/DC flag */ 1476 data->pwm[i] = w83792d_read_value(client, 1477 W83792D_REG_PWM[i]); 1478 } 1479 1480 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG); 1481 data->pwmenable[0] = reg_tmp & 0x03; 1482 data->pwmenable[1] = (reg_tmp>>2) & 0x03; 1483 data->pwmenable[2] = (reg_tmp>>4) & 0x03; 1484 1485 for (i = 0; i < 3; i++) { 1486 data->temp1[i] = w83792d_read_value(client, 1487 W83792D_REG_TEMP1[i]); 1488 } 1489 for (i = 0; i < 2; i++) { 1490 for (j = 0; j < 6; j++) { 1491 data->temp_add[i][j] = w83792d_read_value( 1492 client,W83792D_REG_TEMP_ADD[i][j]); 1493 } 1494 } 1495 1496 /* Update the Fan Divisor */ 1497 for (i = 0; i < 4; i++) { 1498 reg_array_tmp[i] = w83792d_read_value(client, 1499 W83792D_REG_FAN_DIV[i]); 1500 } 1501 data->fan_div[0] = reg_array_tmp[0] & 0x07; 1502 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07; 1503 data->fan_div[2] = reg_array_tmp[1] & 0x07; 1504 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07; 1505 data->fan_div[4] = reg_array_tmp[2] & 0x07; 1506 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07; 1507 data->fan_div[6] = reg_array_tmp[3] & 0x07; 1508 1509 /* Update the realtime status */ 1510 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) + 1511 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) + 1512 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16); 1513 1514 /* Update CaseOpen status and it's CLR_CHS. */ 1515 data->chassis = (w83792d_read_value(client, 1516 W83792D_REG_CHASSIS) >> 5) & 0x01; 1517 data->chassis_clear = (w83792d_read_value(client, 1518 W83792D_REG_CHASSIS_CLR) >> 7) & 0x01; 1519 1520 /* Update Thermal Cruise/Smart Fan I target value */ 1521 for (i = 0; i < 3; i++) { 1522 data->thermal_cruise[i] = 1523 w83792d_read_value(client, 1524 W83792D_REG_THERMAL[i]) & 0x7f; 1525 } 1526 1527 /* Update Smart Fan I/II tolerance */ 1528 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]); 1529 data->tolerance[0] = reg_tmp & 0x0f; 1530 data->tolerance[1] = (reg_tmp >> 4) & 0x0f; 1531 data->tolerance[2] = w83792d_read_value(client, 1532 W83792D_REG_TOLERANCE[2]) & 0x0f; 1533 1534 /* Update Smart Fan II temperature points */ 1535 for (i = 0; i < 3; i++) { 1536 for (j = 0; j < 4; j++) { 1537 data->sf2_points[i][j] = w83792d_read_value( 1538 client,W83792D_REG_POINTS[i][j]) & 0x7f; 1539 } 1540 } 1541 1542 /* Update Smart Fan II duty cycle levels */ 1543 for (i = 0; i < 3; i++) { 1544 reg_tmp = w83792d_read_value(client, 1545 W83792D_REG_LEVELS[i][0]); 1546 data->sf2_levels[i][0] = reg_tmp & 0x0f; 1547 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f; 1548 reg_tmp = w83792d_read_value(client, 1549 W83792D_REG_LEVELS[i][2]); 1550 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f; 1551 data->sf2_levels[i][3] = reg_tmp & 0x0f; 1552 } 1553 1554 data->last_updated = jiffies; 1555 data->valid = 1; 1556 } 1557 1558 mutex_unlock(&data->update_lock); 1559 1560 #ifdef DEBUG 1561 w83792d_print_debug(data, dev); 1562 #endif 1563 1564 return data; 1565 } 1566 1567 #ifdef DEBUG 1568 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev) 1569 { 1570 int i=0, j=0; 1571 dev_dbg(dev, "==========The following is the debug message...========\n"); 1572 dev_dbg(dev, "9 set of Voltages: =====>\n"); 1573 for (i=0; i<9; i++) { 1574 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]); 1575 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]); 1576 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]); 1577 } 1578 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff); 1579 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8); 1580 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n"); 1581 for (i=0; i<7; i++) { 1582 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]); 1583 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]); 1584 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]); 1585 } 1586 dev_dbg(dev, "3 set of Temperatures: =====>\n"); 1587 for (i=0; i<3; i++) { 1588 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]); 1589 } 1590 1591 for (i=0; i<2; i++) { 1592 for (j=0; j<6; j++) { 1593 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j, 1594 data->temp_add[i][j]); 1595 } 1596 } 1597 1598 for (i=0; i<7; i++) { 1599 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]); 1600 } 1601 dev_dbg(dev, "==========End of the debug message...==================\n"); 1602 dev_dbg(dev, "\n"); 1603 } 1604 #endif 1605 1606 static int __init 1607 sensors_w83792d_init(void) 1608 { 1609 return i2c_add_driver(&w83792d_driver); 1610 } 1611 1612 static void __exit 1613 sensors_w83792d_exit(void) 1614 { 1615 i2c_del_driver(&w83792d_driver); 1616 } 1617 1618 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>"); 1619 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6"); 1620 MODULE_LICENSE("GPL"); 1621 1622 module_init(sensors_w83792d_init); 1623 module_exit(sensors_w83792d_exit); 1624 1625