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 unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; 50 51 /* Insmod parameters */ 52 I2C_CLIENT_INSMOD_1(w83792d); 53 I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: " 54 "{bus, clientaddr, subclientaddr1, subclientaddr2}"); 55 56 static int init; 57 module_param(init, bool, 0); 58 MODULE_PARM_DESC(init, "Set to one to force chip initialization"); 59 60 /* The W83792D registers */ 61 static const u8 W83792D_REG_IN[9] = { 62 0x20, /* Vcore A in DataSheet */ 63 0x21, /* Vcore B in DataSheet */ 64 0x22, /* VIN0 in DataSheet */ 65 0x23, /* VIN1 in DataSheet */ 66 0x24, /* VIN2 in DataSheet */ 67 0x25, /* VIN3 in DataSheet */ 68 0x26, /* 5VCC in DataSheet */ 69 0xB0, /* 5VSB in DataSheet */ 70 0xB1 /* VBAT in DataSheet */ 71 }; 72 #define W83792D_REG_LOW_BITS1 0x3E /* Low Bits I in DataSheet */ 73 #define W83792D_REG_LOW_BITS2 0x3F /* Low Bits II in DataSheet */ 74 static const u8 W83792D_REG_IN_MAX[9] = { 75 0x2B, /* Vcore A High Limit in DataSheet */ 76 0x2D, /* Vcore B High Limit in DataSheet */ 77 0x2F, /* VIN0 High Limit in DataSheet */ 78 0x31, /* VIN1 High Limit in DataSheet */ 79 0x33, /* VIN2 High Limit in DataSheet */ 80 0x35, /* VIN3 High Limit in DataSheet */ 81 0x37, /* 5VCC High Limit in DataSheet */ 82 0xB4, /* 5VSB High Limit in DataSheet */ 83 0xB6 /* VBAT High Limit in DataSheet */ 84 }; 85 static const u8 W83792D_REG_IN_MIN[9] = { 86 0x2C, /* Vcore A Low Limit in DataSheet */ 87 0x2E, /* Vcore B Low Limit in DataSheet */ 88 0x30, /* VIN0 Low Limit in DataSheet */ 89 0x32, /* VIN1 Low Limit in DataSheet */ 90 0x34, /* VIN2 Low Limit in DataSheet */ 91 0x36, /* VIN3 Low Limit in DataSheet */ 92 0x38, /* 5VCC Low Limit in DataSheet */ 93 0xB5, /* 5VSB Low Limit in DataSheet */ 94 0xB7 /* VBAT Low Limit in DataSheet */ 95 }; 96 static const u8 W83792D_REG_FAN[7] = { 97 0x28, /* FAN 1 Count in DataSheet */ 98 0x29, /* FAN 2 Count in DataSheet */ 99 0x2A, /* FAN 3 Count in DataSheet */ 100 0xB8, /* FAN 4 Count in DataSheet */ 101 0xB9, /* FAN 5 Count in DataSheet */ 102 0xBA, /* FAN 6 Count in DataSheet */ 103 0xBE /* FAN 7 Count in DataSheet */ 104 }; 105 static const u8 W83792D_REG_FAN_MIN[7] = { 106 0x3B, /* FAN 1 Count Low Limit in DataSheet */ 107 0x3C, /* FAN 2 Count Low Limit in DataSheet */ 108 0x3D, /* FAN 3 Count Low Limit in DataSheet */ 109 0xBB, /* FAN 4 Count Low Limit in DataSheet */ 110 0xBC, /* FAN 5 Count Low Limit in DataSheet */ 111 0xBD, /* FAN 6 Count Low Limit in DataSheet */ 112 0xBF /* FAN 7 Count Low Limit in DataSheet */ 113 }; 114 #define W83792D_REG_FAN_CFG 0x84 /* FAN Configuration in DataSheet */ 115 static const u8 W83792D_REG_FAN_DIV[4] = { 116 0x47, /* contains FAN2 and FAN1 Divisor */ 117 0x5B, /* contains FAN4 and FAN3 Divisor */ 118 0x5C, /* contains FAN6 and FAN5 Divisor */ 119 0x9E /* contains FAN7 Divisor. */ 120 }; 121 static const u8 W83792D_REG_PWM[7] = { 122 0x81, /* FAN 1 Duty Cycle, be used to control */ 123 0x83, /* FAN 2 Duty Cycle, be used to control */ 124 0x94, /* FAN 3 Duty Cycle, be used to control */ 125 0xA3, /* FAN 4 Duty Cycle, be used to control */ 126 0xA4, /* FAN 5 Duty Cycle, be used to control */ 127 0xA5, /* FAN 6 Duty Cycle, be used to control */ 128 0xA6 /* FAN 7 Duty Cycle, be used to control */ 129 }; 130 #define W83792D_REG_BANK 0x4E 131 #define W83792D_REG_TEMP2_CONFIG 0xC2 132 #define W83792D_REG_TEMP3_CONFIG 0xCA 133 134 static const u8 W83792D_REG_TEMP1[3] = { 135 0x27, /* TEMP 1 in DataSheet */ 136 0x39, /* TEMP 1 Over in DataSheet */ 137 0x3A, /* TEMP 1 Hyst in DataSheet */ 138 }; 139 140 static const u8 W83792D_REG_TEMP_ADD[2][6] = { 141 { 0xC0, /* TEMP 2 in DataSheet */ 142 0xC1, /* TEMP 2(0.5 deg) in DataSheet */ 143 0xC5, /* TEMP 2 Over High part in DataSheet */ 144 0xC6, /* TEMP 2 Over Low part in DataSheet */ 145 0xC3, /* TEMP 2 Thyst High part in DataSheet */ 146 0xC4 }, /* TEMP 2 Thyst Low part in DataSheet */ 147 { 0xC8, /* TEMP 3 in DataSheet */ 148 0xC9, /* TEMP 3(0.5 deg) in DataSheet */ 149 0xCD, /* TEMP 3 Over High part in DataSheet */ 150 0xCE, /* TEMP 3 Over Low part in DataSheet */ 151 0xCB, /* TEMP 3 Thyst High part in DataSheet */ 152 0xCC } /* TEMP 3 Thyst Low part in DataSheet */ 153 }; 154 155 static const u8 W83792D_REG_THERMAL[3] = { 156 0x85, /* SmartFanI: Fan1 target value */ 157 0x86, /* SmartFanI: Fan2 target value */ 158 0x96 /* SmartFanI: Fan3 target value */ 159 }; 160 161 static const u8 W83792D_REG_TOLERANCE[3] = { 162 0x87, /* (bit3-0)SmartFan Fan1 tolerance */ 163 0x87, /* (bit7-4)SmartFan Fan2 tolerance */ 164 0x97 /* (bit3-0)SmartFan Fan3 tolerance */ 165 }; 166 167 static const u8 W83792D_REG_POINTS[3][4] = { 168 { 0x85, /* SmartFanII: Fan1 temp point 1 */ 169 0xE3, /* SmartFanII: Fan1 temp point 2 */ 170 0xE4, /* SmartFanII: Fan1 temp point 3 */ 171 0xE5 }, /* SmartFanII: Fan1 temp point 4 */ 172 { 0x86, /* SmartFanII: Fan2 temp point 1 */ 173 0xE6, /* SmartFanII: Fan2 temp point 2 */ 174 0xE7, /* SmartFanII: Fan2 temp point 3 */ 175 0xE8 }, /* SmartFanII: Fan2 temp point 4 */ 176 { 0x96, /* SmartFanII: Fan3 temp point 1 */ 177 0xE9, /* SmartFanII: Fan3 temp point 2 */ 178 0xEA, /* SmartFanII: Fan3 temp point 3 */ 179 0xEB } /* SmartFanII: Fan3 temp point 4 */ 180 }; 181 182 static const u8 W83792D_REG_LEVELS[3][4] = { 183 { 0x88, /* (bit3-0) SmartFanII: Fan1 Non-Stop */ 184 0x88, /* (bit7-4) SmartFanII: Fan1 Level 1 */ 185 0xE0, /* (bit7-4) SmartFanII: Fan1 Level 2 */ 186 0xE0 }, /* (bit3-0) SmartFanII: Fan1 Level 3 */ 187 { 0x89, /* (bit3-0) SmartFanII: Fan2 Non-Stop */ 188 0x89, /* (bit7-4) SmartFanII: Fan2 Level 1 */ 189 0xE1, /* (bit7-4) SmartFanII: Fan2 Level 2 */ 190 0xE1 }, /* (bit3-0) SmartFanII: Fan2 Level 3 */ 191 { 0x98, /* (bit3-0) SmartFanII: Fan3 Non-Stop */ 192 0x98, /* (bit7-4) SmartFanII: Fan3 Level 1 */ 193 0xE2, /* (bit7-4) SmartFanII: Fan3 Level 2 */ 194 0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */ 195 }; 196 197 #define W83792D_REG_GPIO_EN 0x1A 198 #define W83792D_REG_CONFIG 0x40 199 #define W83792D_REG_VID_FANDIV 0x47 200 #define W83792D_REG_CHIPID 0x49 201 #define W83792D_REG_WCHIPID 0x58 202 #define W83792D_REG_CHIPMAN 0x4F 203 #define W83792D_REG_PIN 0x4B 204 #define W83792D_REG_I2C_SUBADDR 0x4A 205 206 #define W83792D_REG_ALARM1 0xA9 /* realtime status register1 */ 207 #define W83792D_REG_ALARM2 0xAA /* realtime status register2 */ 208 #define W83792D_REG_ALARM3 0xAB /* realtime status register3 */ 209 #define W83792D_REG_CHASSIS 0x42 /* Bit 5: Case Open status bit */ 210 #define W83792D_REG_CHASSIS_CLR 0x44 /* Bit 7: Case Open CLR_CHS/Reset bit */ 211 212 /* control in0/in1 's limit modifiability */ 213 #define W83792D_REG_VID_IN_B 0x17 214 215 #define W83792D_REG_VBAT 0x5D 216 #define W83792D_REG_I2C_ADDR 0x48 217 218 /* Conversions. Rounding and limit checking is only done on the TO_REG 219 variants. Note that you should be a bit careful with which arguments 220 these macros are called: arguments may be evaluated more than once. 221 Fixing this is just not worth it. */ 222 #define IN_FROM_REG(nr,val) (((nr)<=1)?(val*2): \ 223 ((((nr)==6)||((nr)==7))?(val*6):(val*4))) 224 #define IN_TO_REG(nr,val) (((nr)<=1)?(val/2): \ 225 ((((nr)==6)||((nr)==7))?(val/6):(val/4))) 226 227 static inline u8 228 FAN_TO_REG(long rpm, int div) 229 { 230 if (rpm == 0) 231 return 255; 232 rpm = SENSORS_LIMIT(rpm, 1, 1000000); 233 return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); 234 } 235 236 #define FAN_FROM_REG(val,div) ((val) == 0 ? -1 : \ 237 ((val) == 255 ? 0 : \ 238 1350000 / ((val) * (div)))) 239 240 /* for temp1 */ 241 #define TEMP1_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \ 242 : (val)) / 1000, 0, 0xff)) 243 #define TEMP1_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000) 244 /* for temp2 and temp3, because they need addtional resolution */ 245 #define TEMP_ADD_FROM_REG(val1, val2) \ 246 ((((val1) & 0x80 ? (val1)-0x100 \ 247 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0)) 248 #define TEMP_ADD_TO_REG_HIGH(val) \ 249 (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \ 250 : (val)) / 1000, 0, 0xff)) 251 #define TEMP_ADD_TO_REG_LOW(val) ((val%1000) ? 0x80 : 0x00) 252 253 #define DIV_FROM_REG(val) (1 << (val)) 254 255 static inline u8 256 DIV_TO_REG(long val) 257 { 258 int i; 259 val = SENSORS_LIMIT(val, 1, 128) >> 1; 260 for (i = 0; i < 7; i++) { 261 if (val == 0) 262 break; 263 val >>= 1; 264 } 265 return ((u8) i); 266 } 267 268 struct w83792d_data { 269 struct i2c_client client; 270 struct class_device *class_dev; 271 enum chips type; 272 273 struct mutex update_lock; 274 char valid; /* !=0 if following fields are valid */ 275 unsigned long last_updated; /* In jiffies */ 276 277 /* array of 2 pointers to subclients */ 278 struct i2c_client *lm75[2]; 279 280 u8 in[9]; /* Register value */ 281 u8 in_max[9]; /* Register value */ 282 u8 in_min[9]; /* Register value */ 283 u16 low_bits; /* Additional resolution to voltage in6-0 */ 284 u8 fan[7]; /* Register value */ 285 u8 fan_min[7]; /* Register value */ 286 u8 temp1[3]; /* current, over, thyst */ 287 u8 temp_add[2][6]; /* Register value */ 288 u8 fan_div[7]; /* Register encoding, shifted right */ 289 u8 pwm[7]; /* We only consider the first 3 set of pwm, 290 although 792 chip has 7 set of pwm. */ 291 u8 pwmenable[3]; 292 u32 alarms; /* realtime status register encoding,combined */ 293 u8 chassis; /* Chassis status */ 294 u8 chassis_clear; /* CLR_CHS, clear chassis intrusion detection */ 295 u8 thermal_cruise[3]; /* Smart FanI: Fan1,2,3 target value */ 296 u8 tolerance[3]; /* Fan1,2,3 tolerance(Smart Fan I/II) */ 297 u8 sf2_points[3][4]; /* Smart FanII: Fan1,2,3 temperature points */ 298 u8 sf2_levels[3][4]; /* Smart FanII: Fan1,2,3 duty cycle levels */ 299 }; 300 301 static int w83792d_attach_adapter(struct i2c_adapter *adapter); 302 static int w83792d_detect(struct i2c_adapter *adapter, int address, int kind); 303 static int w83792d_detach_client(struct i2c_client *client); 304 static struct w83792d_data *w83792d_update_device(struct device *dev); 305 306 #ifdef DEBUG 307 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev); 308 #endif 309 310 static void w83792d_init_client(struct i2c_client *client); 311 312 static struct i2c_driver w83792d_driver = { 313 .driver = { 314 .name = "w83792d", 315 }, 316 .attach_adapter = w83792d_attach_adapter, 317 .detach_client = w83792d_detach_client, 318 }; 319 320 static inline long in_count_from_reg(int nr, struct w83792d_data *data) 321 { 322 /* in7 and in8 do not have low bits, but the formula still works */ 323 return ((data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03)); 324 } 325 326 /* The SMBus locks itself. The Winbond W83792D chip has a bank register, 327 but the driver only accesses registers in bank 0, so we don't have 328 to switch banks and lock access between switches. */ 329 static inline int w83792d_read_value(struct i2c_client *client, u8 reg) 330 { 331 return i2c_smbus_read_byte_data(client, reg); 332 } 333 334 static inline int 335 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value) 336 { 337 return i2c_smbus_write_byte_data(client, reg, value); 338 } 339 340 /* following are the sysfs callback functions */ 341 static ssize_t show_in(struct device *dev, struct device_attribute *attr, 342 char *buf) 343 { 344 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 345 int nr = sensor_attr->index; 346 struct w83792d_data *data = w83792d_update_device(dev); 347 return sprintf(buf,"%ld\n", IN_FROM_REG(nr,(in_count_from_reg(nr, data)))); 348 } 349 350 #define show_in_reg(reg) \ 351 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ 352 char *buf) \ 353 { \ 354 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ 355 int nr = sensor_attr->index; \ 356 struct w83792d_data *data = w83792d_update_device(dev); \ 357 return sprintf(buf,"%ld\n", (long)(IN_FROM_REG(nr, (data->reg[nr])*4))); \ 358 } 359 360 show_in_reg(in_min); 361 show_in_reg(in_max); 362 363 #define store_in_reg(REG, reg) \ 364 static ssize_t store_in_##reg (struct device *dev, \ 365 struct device_attribute *attr, \ 366 const char *buf, size_t count) \ 367 { \ 368 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ 369 int nr = sensor_attr->index; \ 370 struct i2c_client *client = to_i2c_client(dev); \ 371 struct w83792d_data *data = i2c_get_clientdata(client); \ 372 u32 val; \ 373 \ 374 val = simple_strtoul(buf, NULL, 10); \ 375 mutex_lock(&data->update_lock); \ 376 data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \ 377 w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \ 378 mutex_unlock(&data->update_lock); \ 379 \ 380 return count; \ 381 } 382 store_in_reg(MIN, min); 383 store_in_reg(MAX, max); 384 385 #define show_fan_reg(reg) \ 386 static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \ 387 char *buf) \ 388 { \ 389 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ 390 int nr = sensor_attr->index - 1; \ 391 struct w83792d_data *data = w83792d_update_device(dev); \ 392 return sprintf(buf,"%d\n", \ 393 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \ 394 } 395 396 show_fan_reg(fan); 397 show_fan_reg(fan_min); 398 399 static ssize_t 400 store_fan_min(struct device *dev, struct device_attribute *attr, 401 const char *buf, size_t count) 402 { 403 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 404 int nr = sensor_attr->index - 1; 405 struct i2c_client *client = to_i2c_client(dev); 406 struct w83792d_data *data = i2c_get_clientdata(client); 407 u32 val; 408 409 val = simple_strtoul(buf, NULL, 10); 410 mutex_lock(&data->update_lock); 411 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); 412 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], 413 data->fan_min[nr]); 414 mutex_unlock(&data->update_lock); 415 416 return count; 417 } 418 419 static ssize_t 420 show_fan_div(struct device *dev, struct device_attribute *attr, 421 char *buf) 422 { 423 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 424 int nr = sensor_attr->index; 425 struct w83792d_data *data = w83792d_update_device(dev); 426 return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1])); 427 } 428 429 /* Note: we save and restore the fan minimum here, because its value is 430 determined in part by the fan divisor. This follows the principle of 431 least surprise; the user doesn't expect the fan minimum to change just 432 because the divisor changed. */ 433 static ssize_t 434 store_fan_div(struct device *dev, struct device_attribute *attr, 435 const char *buf, size_t count) 436 { 437 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 438 int nr = sensor_attr->index - 1; 439 struct i2c_client *client = to_i2c_client(dev); 440 struct w83792d_data *data = i2c_get_clientdata(client); 441 unsigned long min; 442 /*u8 reg;*/ 443 u8 fan_div_reg = 0; 444 u8 tmp_fan_div; 445 446 /* Save fan_min */ 447 mutex_lock(&data->update_lock); 448 min = FAN_FROM_REG(data->fan_min[nr], 449 DIV_FROM_REG(data->fan_div[nr])); 450 451 data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10)); 452 453 fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]); 454 fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8; 455 tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70) 456 : ((data->fan_div[nr]) & 0x07); 457 w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1], 458 fan_div_reg | tmp_fan_div); 459 460 /* Restore fan_min */ 461 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); 462 w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]); 463 mutex_unlock(&data->update_lock); 464 465 return count; 466 } 467 468 /* read/write the temperature1, includes measured value and limits */ 469 470 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr, 471 char *buf) 472 { 473 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 474 int nr = sensor_attr->index; 475 struct w83792d_data *data = w83792d_update_device(dev); 476 return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr])); 477 } 478 479 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr, 480 const char *buf, size_t count) 481 { 482 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 483 int nr = sensor_attr->index; 484 struct i2c_client *client = to_i2c_client(dev); 485 struct w83792d_data *data = i2c_get_clientdata(client); 486 s32 val; 487 488 val = simple_strtol(buf, NULL, 10); 489 mutex_lock(&data->update_lock); 490 data->temp1[nr] = TEMP1_TO_REG(val); 491 w83792d_write_value(client, W83792D_REG_TEMP1[nr], 492 data->temp1[nr]); 493 mutex_unlock(&data->update_lock); 494 495 return count; 496 } 497 498 /* read/write the temperature2-3, includes measured value and limits */ 499 500 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr, 501 char *buf) 502 { 503 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 504 int nr = sensor_attr->nr; 505 int index = sensor_attr->index; 506 struct w83792d_data *data = w83792d_update_device(dev); 507 return sprintf(buf,"%ld\n", 508 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index], 509 data->temp_add[nr][index+1])); 510 } 511 512 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr, 513 const char *buf, size_t count) 514 { 515 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 516 int nr = sensor_attr->nr; 517 int index = sensor_attr->index; 518 struct i2c_client *client = to_i2c_client(dev); 519 struct w83792d_data *data = i2c_get_clientdata(client); 520 s32 val; 521 522 val = simple_strtol(buf, NULL, 10); 523 mutex_lock(&data->update_lock); 524 data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val); 525 data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val); 526 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index], 527 data->temp_add[nr][index]); 528 w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1], 529 data->temp_add[nr][index+1]); 530 mutex_unlock(&data->update_lock); 531 532 return count; 533 } 534 535 /* get reatime status of all sensors items: voltage, temp, fan */ 536 static ssize_t 537 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) 538 { 539 struct w83792d_data *data = w83792d_update_device(dev); 540 return sprintf(buf, "%d\n", data->alarms); 541 } 542 543 static ssize_t 544 show_pwm(struct device *dev, struct device_attribute *attr, 545 char *buf) 546 { 547 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 548 int nr = sensor_attr->index; 549 struct w83792d_data *data = w83792d_update_device(dev); 550 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4); 551 } 552 553 static ssize_t 554 show_pwmenable(struct device *dev, struct device_attribute *attr, 555 char *buf) 556 { 557 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 558 int nr = sensor_attr->index - 1; 559 struct w83792d_data *data = w83792d_update_device(dev); 560 long pwm_enable_tmp = 1; 561 562 switch (data->pwmenable[nr]) { 563 case 0: 564 pwm_enable_tmp = 1; /* manual mode */ 565 break; 566 case 1: 567 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */ 568 break; 569 case 2: 570 pwm_enable_tmp = 2; /* Smart Fan II */ 571 break; 572 } 573 574 return sprintf(buf, "%ld\n", pwm_enable_tmp); 575 } 576 577 static ssize_t 578 store_pwm(struct device *dev, struct device_attribute *attr, 579 const char *buf, size_t count) 580 { 581 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 582 int nr = sensor_attr->index; 583 struct i2c_client *client = to_i2c_client(dev); 584 struct w83792d_data *data = i2c_get_clientdata(client); 585 u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255) >> 4; 586 587 mutex_lock(&data->update_lock); 588 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0; 589 data->pwm[nr] = val; 590 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 591 mutex_unlock(&data->update_lock); 592 593 return count; 594 } 595 596 static ssize_t 597 store_pwmenable(struct device *dev, struct device_attribute *attr, 598 const char *buf, size_t count) 599 { 600 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 601 int nr = sensor_attr->index - 1; 602 struct i2c_client *client = to_i2c_client(dev); 603 struct w83792d_data *data = i2c_get_clientdata(client); 604 u32 val; 605 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp; 606 607 val = simple_strtoul(buf, NULL, 10); 608 if (val < 1 || val > 3) 609 return -EINVAL; 610 611 mutex_lock(&data->update_lock); 612 switch (val) { 613 case 1: 614 data->pwmenable[nr] = 0; /* manual mode */ 615 break; 616 case 2: 617 data->pwmenable[nr] = 2; /* Smart Fan II */ 618 break; 619 case 3: 620 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */ 621 break; 622 } 623 cfg1_tmp = data->pwmenable[0]; 624 cfg2_tmp = (data->pwmenable[1]) << 2; 625 cfg3_tmp = (data->pwmenable[2]) << 4; 626 cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0; 627 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp; 628 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp); 629 mutex_unlock(&data->update_lock); 630 631 return count; 632 } 633 634 static ssize_t 635 show_pwm_mode(struct device *dev, struct device_attribute *attr, 636 char *buf) 637 { 638 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 639 int nr = sensor_attr->index; 640 struct w83792d_data *data = w83792d_update_device(dev); 641 return sprintf(buf, "%d\n", data->pwm[nr] >> 7); 642 } 643 644 static ssize_t 645 store_pwm_mode(struct device *dev, struct device_attribute *attr, 646 const char *buf, size_t count) 647 { 648 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 649 int nr = sensor_attr->index; 650 struct i2c_client *client = to_i2c_client(dev); 651 struct w83792d_data *data = i2c_get_clientdata(client); 652 u32 val; 653 654 val = simple_strtoul(buf, NULL, 10); 655 if (val != 0 && val != 1) 656 return -EINVAL; 657 658 mutex_lock(&data->update_lock); 659 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]); 660 if (val) { /* PWM mode */ 661 data->pwm[nr] |= 0x80; 662 } else { /* DC mode */ 663 data->pwm[nr] &= 0x7f; 664 } 665 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 666 mutex_unlock(&data->update_lock); 667 668 return count; 669 } 670 671 static ssize_t 672 show_regs_chassis(struct device *dev, struct device_attribute *attr, 673 char *buf) 674 { 675 struct w83792d_data *data = w83792d_update_device(dev); 676 return sprintf(buf, "%d\n", data->chassis); 677 } 678 679 static ssize_t 680 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf) 681 { 682 struct w83792d_data *data = w83792d_update_device(dev); 683 return sprintf(buf, "%d\n", data->chassis_clear); 684 } 685 686 static ssize_t 687 store_chassis_clear(struct device *dev, struct device_attribute *attr, 688 const char *buf, size_t count) 689 { 690 struct i2c_client *client = to_i2c_client(dev); 691 struct w83792d_data *data = i2c_get_clientdata(client); 692 u32 val; 693 u8 temp1 = 0, temp2 = 0; 694 695 val = simple_strtoul(buf, NULL, 10); 696 mutex_lock(&data->update_lock); 697 data->chassis_clear = SENSORS_LIMIT(val, 0 ,1); 698 temp1 = ((data->chassis_clear) << 7) & 0x80; 699 temp2 = w83792d_read_value(client, 700 W83792D_REG_CHASSIS_CLR) & 0x7f; 701 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2); 702 mutex_unlock(&data->update_lock); 703 704 return count; 705 } 706 707 /* For Smart Fan I / Thermal Cruise */ 708 static ssize_t 709 show_thermal_cruise(struct device *dev, struct device_attribute *attr, 710 char *buf) 711 { 712 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 713 int nr = sensor_attr->index; 714 struct w83792d_data *data = w83792d_update_device(dev); 715 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]); 716 } 717 718 static ssize_t 719 store_thermal_cruise(struct device *dev, struct device_attribute *attr, 720 const char *buf, size_t count) 721 { 722 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 723 int nr = sensor_attr->index - 1; 724 struct i2c_client *client = to_i2c_client(dev); 725 struct w83792d_data *data = i2c_get_clientdata(client); 726 u32 val; 727 u8 target_tmp=0, target_mask=0; 728 729 val = simple_strtoul(buf, NULL, 10); 730 target_tmp = val; 731 target_tmp = target_tmp & 0x7f; 732 mutex_lock(&data->update_lock); 733 target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80; 734 data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255); 735 w83792d_write_value(client, W83792D_REG_THERMAL[nr], 736 (data->thermal_cruise[nr]) | target_mask); 737 mutex_unlock(&data->update_lock); 738 739 return count; 740 } 741 742 /* For Smart Fan I/Thermal Cruise and Smart Fan II */ 743 static ssize_t 744 show_tolerance(struct device *dev, struct device_attribute *attr, 745 char *buf) 746 { 747 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 748 int nr = sensor_attr->index; 749 struct w83792d_data *data = w83792d_update_device(dev); 750 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]); 751 } 752 753 static ssize_t 754 store_tolerance(struct device *dev, struct device_attribute *attr, 755 const char *buf, size_t count) 756 { 757 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 758 int nr = sensor_attr->index - 1; 759 struct i2c_client *client = to_i2c_client(dev); 760 struct w83792d_data *data = i2c_get_clientdata(client); 761 u32 val; 762 u8 tol_tmp, tol_mask; 763 764 val = simple_strtoul(buf, NULL, 10); 765 mutex_lock(&data->update_lock); 766 tol_mask = w83792d_read_value(client, 767 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0); 768 tol_tmp = SENSORS_LIMIT(val, 0, 15); 769 tol_tmp &= 0x0f; 770 data->tolerance[nr] = tol_tmp; 771 if (nr == 1) { 772 tol_tmp <<= 4; 773 } 774 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr], 775 tol_mask | tol_tmp); 776 mutex_unlock(&data->update_lock); 777 778 return count; 779 } 780 781 /* For Smart Fan II */ 782 static ssize_t 783 show_sf2_point(struct device *dev, struct device_attribute *attr, 784 char *buf) 785 { 786 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 787 int nr = sensor_attr->nr; 788 int index = sensor_attr->index; 789 struct w83792d_data *data = w83792d_update_device(dev); 790 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]); 791 } 792 793 static ssize_t 794 store_sf2_point(struct device *dev, struct device_attribute *attr, 795 const char *buf, size_t count) 796 { 797 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 798 int nr = sensor_attr->nr - 1; 799 int index = sensor_attr->index - 1; 800 struct i2c_client *client = to_i2c_client(dev); 801 struct w83792d_data *data = i2c_get_clientdata(client); 802 u32 val; 803 u8 mask_tmp = 0; 804 805 val = simple_strtoul(buf, NULL, 10); 806 mutex_lock(&data->update_lock); 807 data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127); 808 mask_tmp = w83792d_read_value(client, 809 W83792D_REG_POINTS[index][nr]) & 0x80; 810 w83792d_write_value(client, W83792D_REG_POINTS[index][nr], 811 mask_tmp|data->sf2_points[index][nr]); 812 mutex_unlock(&data->update_lock); 813 814 return count; 815 } 816 817 static ssize_t 818 show_sf2_level(struct device *dev, struct device_attribute *attr, 819 char *buf) 820 { 821 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 822 int nr = sensor_attr->nr; 823 int index = sensor_attr->index; 824 struct w83792d_data *data = w83792d_update_device(dev); 825 return sprintf(buf, "%d\n", 826 (((data->sf2_levels[index-1][nr]) * 100) / 15)); 827 } 828 829 static ssize_t 830 store_sf2_level(struct device *dev, struct device_attribute *attr, 831 const char *buf, size_t count) 832 { 833 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 834 int nr = sensor_attr->nr; 835 int index = sensor_attr->index - 1; 836 struct i2c_client *client = to_i2c_client(dev); 837 struct w83792d_data *data = i2c_get_clientdata(client); 838 u32 val; 839 u8 mask_tmp=0, level_tmp=0; 840 841 val = simple_strtoul(buf, NULL, 10); 842 mutex_lock(&data->update_lock); 843 data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15); 844 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr]) 845 & ((nr==3) ? 0xf0 : 0x0f); 846 if (nr==3) { 847 level_tmp = data->sf2_levels[index][nr]; 848 } else { 849 level_tmp = data->sf2_levels[index][nr] << 4; 850 } 851 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp); 852 mutex_unlock(&data->update_lock); 853 854 return count; 855 } 856 857 /* This function is called when: 858 * w83792d_driver is inserted (when this module is loaded), for each 859 available adapter 860 * when a new adapter is inserted (and w83792d_driver is still present) */ 861 static int 862 w83792d_attach_adapter(struct i2c_adapter *adapter) 863 { 864 if (!(adapter->class & I2C_CLASS_HWMON)) 865 return 0; 866 return i2c_probe(adapter, &addr_data, w83792d_detect); 867 } 868 869 870 static int 871 w83792d_create_subclient(struct i2c_adapter *adapter, 872 struct i2c_client *new_client, int addr, 873 struct i2c_client **sub_cli) 874 { 875 int err; 876 struct i2c_client *sub_client; 877 878 (*sub_cli) = sub_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); 879 if (!(sub_client)) { 880 return -ENOMEM; 881 } 882 sub_client->addr = 0x48 + addr; 883 i2c_set_clientdata(sub_client, NULL); 884 sub_client->adapter = adapter; 885 sub_client->driver = &w83792d_driver; 886 sub_client->flags = 0; 887 strlcpy(sub_client->name, "w83792d subclient", I2C_NAME_SIZE); 888 if ((err = i2c_attach_client(sub_client))) { 889 dev_err(&new_client->dev, "subclient registration " 890 "at address 0x%x failed\n", sub_client->addr); 891 kfree(sub_client); 892 return err; 893 } 894 return 0; 895 } 896 897 898 static int 899 w83792d_detect_subclients(struct i2c_adapter *adapter, int address, int kind, 900 struct i2c_client *new_client) 901 { 902 int i, id, err; 903 u8 val; 904 struct w83792d_data *data = i2c_get_clientdata(new_client); 905 906 id = i2c_adapter_id(adapter); 907 if (force_subclients[0] == id && force_subclients[1] == address) { 908 for (i = 2; i <= 3; i++) { 909 if (force_subclients[i] < 0x48 || 910 force_subclients[i] > 0x4f) { 911 dev_err(&new_client->dev, "invalid subclient " 912 "address %d; must be 0x48-0x4f\n", 913 force_subclients[i]); 914 err = -ENODEV; 915 goto ERROR_SC_0; 916 } 917 } 918 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR, 919 (force_subclients[2] & 0x07) | 920 ((force_subclients[3] & 0x07) << 4)); 921 } 922 923 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR); 924 if (!(val & 0x08)) { 925 err = w83792d_create_subclient(adapter, new_client, val & 0x7, 926 &data->lm75[0]); 927 if (err < 0) 928 goto ERROR_SC_0; 929 } 930 if (!(val & 0x80)) { 931 if ((data->lm75[0] != NULL) && 932 ((val & 0x7) == ((val >> 4) & 0x7))) { 933 dev_err(&new_client->dev, "duplicate addresses 0x%x, " 934 "use force_subclient\n", data->lm75[0]->addr); 935 err = -ENODEV; 936 goto ERROR_SC_1; 937 } 938 err = w83792d_create_subclient(adapter, new_client, 939 (val >> 4) & 0x7, &data->lm75[1]); 940 if (err < 0) 941 goto ERROR_SC_1; 942 } 943 944 return 0; 945 946 /* Undo inits in case of errors */ 947 948 ERROR_SC_1: 949 if (data->lm75[0] != NULL) { 950 i2c_detach_client(data->lm75[0]); 951 kfree(data->lm75[0]); 952 } 953 ERROR_SC_0: 954 return err; 955 } 956 957 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); 958 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); 959 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); 960 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); 961 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4); 962 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5); 963 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6); 964 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7); 965 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8); 966 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO, 967 show_in_min, store_in_min, 0); 968 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, 969 show_in_min, store_in_min, 1); 970 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, 971 show_in_min, store_in_min, 2); 972 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO, 973 show_in_min, store_in_min, 3); 974 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO, 975 show_in_min, store_in_min, 4); 976 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO, 977 show_in_min, store_in_min, 5); 978 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO, 979 show_in_min, store_in_min, 6); 980 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO, 981 show_in_min, store_in_min, 7); 982 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO, 983 show_in_min, store_in_min, 8); 984 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO, 985 show_in_max, store_in_max, 0); 986 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, 987 show_in_max, store_in_max, 1); 988 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, 989 show_in_max, store_in_max, 2); 990 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO, 991 show_in_max, store_in_max, 3); 992 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO, 993 show_in_max, store_in_max, 4); 994 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO, 995 show_in_max, store_in_max, 5); 996 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO, 997 show_in_max, store_in_max, 6); 998 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO, 999 show_in_max, store_in_max, 7); 1000 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO, 1001 show_in_max, store_in_max, 8); 1002 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0); 1003 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0); 1004 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0); 1005 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, 1006 show_temp1, store_temp1, 0, 1); 1007 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23, 1008 store_temp23, 0, 2); 1009 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23, 1010 store_temp23, 1, 2); 1011 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, 1012 show_temp1, store_temp1, 0, 2); 1013 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, 1014 show_temp23, store_temp23, 0, 4); 1015 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, 1016 show_temp23, store_temp23, 1, 4); 1017 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); 1018 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL); 1019 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR, 1020 show_chassis_clear, store_chassis_clear); 1021 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0); 1022 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1); 1023 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2); 1024 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, 1025 show_pwmenable, store_pwmenable, 1); 1026 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, 1027 show_pwmenable, store_pwmenable, 2); 1028 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, 1029 show_pwmenable, store_pwmenable, 3); 1030 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, 1031 show_pwm_mode, store_pwm_mode, 0); 1032 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, 1033 show_pwm_mode, store_pwm_mode, 1); 1034 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, 1035 show_pwm_mode, store_pwm_mode, 2); 1036 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO, 1037 show_tolerance, store_tolerance, 1); 1038 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO, 1039 show_tolerance, store_tolerance, 2); 1040 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO, 1041 show_tolerance, store_tolerance, 3); 1042 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO, 1043 show_thermal_cruise, store_thermal_cruise, 1); 1044 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO, 1045 show_thermal_cruise, store_thermal_cruise, 2); 1046 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO, 1047 show_thermal_cruise, store_thermal_cruise, 3); 1048 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR, 1049 show_sf2_point, store_sf2_point, 1, 1); 1050 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR, 1051 show_sf2_point, store_sf2_point, 2, 1); 1052 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR, 1053 show_sf2_point, store_sf2_point, 3, 1); 1054 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR, 1055 show_sf2_point, store_sf2_point, 4, 1); 1056 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR, 1057 show_sf2_point, store_sf2_point, 1, 2); 1058 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR, 1059 show_sf2_point, store_sf2_point, 2, 2); 1060 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR, 1061 show_sf2_point, store_sf2_point, 3, 2); 1062 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR, 1063 show_sf2_point, store_sf2_point, 4, 2); 1064 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR, 1065 show_sf2_point, store_sf2_point, 1, 3); 1066 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR, 1067 show_sf2_point, store_sf2_point, 2, 3); 1068 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR, 1069 show_sf2_point, store_sf2_point, 3, 3); 1070 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR, 1071 show_sf2_point, store_sf2_point, 4, 3); 1072 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR, 1073 show_sf2_level, store_sf2_level, 1, 1); 1074 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR, 1075 show_sf2_level, store_sf2_level, 2, 1); 1076 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR, 1077 show_sf2_level, store_sf2_level, 3, 1); 1078 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR, 1079 show_sf2_level, store_sf2_level, 1, 2); 1080 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR, 1081 show_sf2_level, store_sf2_level, 2, 2); 1082 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR, 1083 show_sf2_level, store_sf2_level, 3, 2); 1084 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR, 1085 show_sf2_level, store_sf2_level, 1, 3); 1086 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR, 1087 show_sf2_level, store_sf2_level, 2, 3); 1088 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR, 1089 show_sf2_level, store_sf2_level, 3, 3); 1090 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1); 1091 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2); 1092 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3); 1093 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4); 1094 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5); 1095 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6); 1096 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7); 1097 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, 1098 show_fan_min, store_fan_min, 1); 1099 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, 1100 show_fan_min, store_fan_min, 2); 1101 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, 1102 show_fan_min, store_fan_min, 3); 1103 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, 1104 show_fan_min, store_fan_min, 4); 1105 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO, 1106 show_fan_min, store_fan_min, 5); 1107 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO, 1108 show_fan_min, store_fan_min, 6); 1109 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO, 1110 show_fan_min, store_fan_min, 7); 1111 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO, 1112 show_fan_div, store_fan_div, 1); 1113 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO, 1114 show_fan_div, store_fan_div, 2); 1115 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO, 1116 show_fan_div, store_fan_div, 3); 1117 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO, 1118 show_fan_div, store_fan_div, 4); 1119 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO, 1120 show_fan_div, store_fan_div, 5); 1121 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO, 1122 show_fan_div, store_fan_div, 6); 1123 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO, 1124 show_fan_div, store_fan_div, 7); 1125 1126 static struct attribute *w83792d_attributes_fan[4][4] = { 1127 { 1128 &sensor_dev_attr_fan4_input.dev_attr.attr, 1129 &sensor_dev_attr_fan4_min.dev_attr.attr, 1130 &sensor_dev_attr_fan4_div.dev_attr.attr, 1131 NULL 1132 }, { 1133 &sensor_dev_attr_fan5_input.dev_attr.attr, 1134 &sensor_dev_attr_fan5_min.dev_attr.attr, 1135 &sensor_dev_attr_fan5_div.dev_attr.attr, 1136 NULL 1137 }, { 1138 &sensor_dev_attr_fan6_input.dev_attr.attr, 1139 &sensor_dev_attr_fan6_min.dev_attr.attr, 1140 &sensor_dev_attr_fan6_div.dev_attr.attr, 1141 NULL 1142 }, { 1143 &sensor_dev_attr_fan7_input.dev_attr.attr, 1144 &sensor_dev_attr_fan7_min.dev_attr.attr, 1145 &sensor_dev_attr_fan7_div.dev_attr.attr, 1146 NULL 1147 } 1148 }; 1149 1150 static const struct attribute_group w83792d_group_fan[4] = { 1151 { .attrs = w83792d_attributes_fan[0] }, 1152 { .attrs = w83792d_attributes_fan[1] }, 1153 { .attrs = w83792d_attributes_fan[2] }, 1154 { .attrs = w83792d_attributes_fan[3] }, 1155 }; 1156 1157 static struct attribute *w83792d_attributes[] = { 1158 &sensor_dev_attr_in0_input.dev_attr.attr, 1159 &sensor_dev_attr_in0_max.dev_attr.attr, 1160 &sensor_dev_attr_in0_min.dev_attr.attr, 1161 &sensor_dev_attr_in1_input.dev_attr.attr, 1162 &sensor_dev_attr_in1_max.dev_attr.attr, 1163 &sensor_dev_attr_in1_min.dev_attr.attr, 1164 &sensor_dev_attr_in2_input.dev_attr.attr, 1165 &sensor_dev_attr_in2_max.dev_attr.attr, 1166 &sensor_dev_attr_in2_min.dev_attr.attr, 1167 &sensor_dev_attr_in3_input.dev_attr.attr, 1168 &sensor_dev_attr_in3_max.dev_attr.attr, 1169 &sensor_dev_attr_in3_min.dev_attr.attr, 1170 &sensor_dev_attr_in4_input.dev_attr.attr, 1171 &sensor_dev_attr_in4_max.dev_attr.attr, 1172 &sensor_dev_attr_in4_min.dev_attr.attr, 1173 &sensor_dev_attr_in5_input.dev_attr.attr, 1174 &sensor_dev_attr_in5_max.dev_attr.attr, 1175 &sensor_dev_attr_in5_min.dev_attr.attr, 1176 &sensor_dev_attr_in6_input.dev_attr.attr, 1177 &sensor_dev_attr_in6_max.dev_attr.attr, 1178 &sensor_dev_attr_in6_min.dev_attr.attr, 1179 &sensor_dev_attr_in7_input.dev_attr.attr, 1180 &sensor_dev_attr_in7_max.dev_attr.attr, 1181 &sensor_dev_attr_in7_min.dev_attr.attr, 1182 &sensor_dev_attr_in8_input.dev_attr.attr, 1183 &sensor_dev_attr_in8_max.dev_attr.attr, 1184 &sensor_dev_attr_in8_min.dev_attr.attr, 1185 &sensor_dev_attr_temp1_input.dev_attr.attr, 1186 &sensor_dev_attr_temp1_max.dev_attr.attr, 1187 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, 1188 &sensor_dev_attr_temp2_input.dev_attr.attr, 1189 &sensor_dev_attr_temp2_max.dev_attr.attr, 1190 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, 1191 &sensor_dev_attr_temp3_input.dev_attr.attr, 1192 &sensor_dev_attr_temp3_max.dev_attr.attr, 1193 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, 1194 &sensor_dev_attr_pwm1.dev_attr.attr, 1195 &sensor_dev_attr_pwm1_mode.dev_attr.attr, 1196 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 1197 &sensor_dev_attr_pwm2.dev_attr.attr, 1198 &sensor_dev_attr_pwm2_mode.dev_attr.attr, 1199 &sensor_dev_attr_pwm2_enable.dev_attr.attr, 1200 &sensor_dev_attr_pwm3.dev_attr.attr, 1201 &sensor_dev_attr_pwm3_mode.dev_attr.attr, 1202 &sensor_dev_attr_pwm3_enable.dev_attr.attr, 1203 &dev_attr_alarms.attr, 1204 &dev_attr_chassis.attr, 1205 &dev_attr_chassis_clear.attr, 1206 &sensor_dev_attr_tolerance1.dev_attr.attr, 1207 &sensor_dev_attr_thermal_cruise1.dev_attr.attr, 1208 &sensor_dev_attr_tolerance2.dev_attr.attr, 1209 &sensor_dev_attr_thermal_cruise2.dev_attr.attr, 1210 &sensor_dev_attr_tolerance3.dev_attr.attr, 1211 &sensor_dev_attr_thermal_cruise3.dev_attr.attr, 1212 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr, 1213 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr, 1214 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr, 1215 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr, 1216 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr, 1217 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr, 1218 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr, 1219 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr, 1220 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr, 1221 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr, 1222 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr, 1223 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr, 1224 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr, 1225 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr, 1226 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr, 1227 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr, 1228 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr, 1229 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr, 1230 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr, 1231 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr, 1232 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr, 1233 &sensor_dev_attr_fan1_input.dev_attr.attr, 1234 &sensor_dev_attr_fan1_min.dev_attr.attr, 1235 &sensor_dev_attr_fan1_div.dev_attr.attr, 1236 &sensor_dev_attr_fan2_input.dev_attr.attr, 1237 &sensor_dev_attr_fan2_min.dev_attr.attr, 1238 &sensor_dev_attr_fan2_div.dev_attr.attr, 1239 &sensor_dev_attr_fan3_input.dev_attr.attr, 1240 &sensor_dev_attr_fan3_min.dev_attr.attr, 1241 &sensor_dev_attr_fan3_div.dev_attr.attr, 1242 NULL 1243 }; 1244 1245 static const struct attribute_group w83792d_group = { 1246 .attrs = w83792d_attributes, 1247 }; 1248 1249 static int 1250 w83792d_detect(struct i2c_adapter *adapter, int address, int kind) 1251 { 1252 int i = 0, val1 = 0, val2; 1253 struct i2c_client *client; 1254 struct device *dev; 1255 struct w83792d_data *data; 1256 int err = 0; 1257 const char *client_name = ""; 1258 1259 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { 1260 goto ERROR0; 1261 } 1262 1263 /* OK. For now, we presume we have a valid client. We now create the 1264 client structure, even though we cannot fill it completely yet. 1265 But it allows us to access w83792d_{read,write}_value. */ 1266 1267 if (!(data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL))) { 1268 err = -ENOMEM; 1269 goto ERROR0; 1270 } 1271 1272 client = &data->client; 1273 dev = &client->dev; 1274 i2c_set_clientdata(client, data); 1275 client->addr = address; 1276 client->adapter = adapter; 1277 client->driver = &w83792d_driver; 1278 client->flags = 0; 1279 1280 /* Now, we do the remaining detection. */ 1281 1282 /* The w83792d may be stuck in some other bank than bank 0. This may 1283 make reading other information impossible. Specify a force=... or 1284 force_*=... parameter, and the Winbond will be reset to the right 1285 bank. */ 1286 if (kind < 0) { 1287 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) { 1288 dev_dbg(dev, "Detection failed at step 1\n"); 1289 goto ERROR1; 1290 } 1291 val1 = w83792d_read_value(client, W83792D_REG_BANK); 1292 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1293 /* Check for Winbond ID if in bank 0 */ 1294 if (!(val1 & 0x07)) { /* is Bank0 */ 1295 if (((!(val1 & 0x80)) && (val2 != 0xa3)) || 1296 ((val1 & 0x80) && (val2 != 0x5c))) { 1297 dev_dbg(dev, "Detection failed at step 2\n"); 1298 goto ERROR1; 1299 } 1300 } 1301 /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR 1302 should match */ 1303 if (w83792d_read_value(client, 1304 W83792D_REG_I2C_ADDR) != address) { 1305 dev_dbg(dev, "Detection failed at step 3\n"); 1306 goto ERROR1; 1307 } 1308 } 1309 1310 /* We have either had a force parameter, or we have already detected the 1311 Winbond. Put it now into bank 0 and Vendor ID High Byte */ 1312 w83792d_write_value(client, 1313 W83792D_REG_BANK, 1314 (w83792d_read_value(client, 1315 W83792D_REG_BANK) & 0x78) | 0x80); 1316 1317 /* Determine the chip type. */ 1318 if (kind <= 0) { 1319 /* get vendor ID */ 1320 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1321 if (val2 != 0x5c) { /* the vendor is NOT Winbond */ 1322 goto ERROR1; 1323 } 1324 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID); 1325 if (val1 == 0x7a) { 1326 kind = w83792d; 1327 } else { 1328 if (kind == 0) 1329 dev_warn(dev, 1330 "w83792d: Ignoring 'force' parameter for" 1331 " unknown chip at adapter %d, address" 1332 " 0x%02x\n", i2c_adapter_id(adapter), 1333 address); 1334 goto ERROR1; 1335 } 1336 } 1337 1338 if (kind == w83792d) { 1339 client_name = "w83792d"; 1340 } else { 1341 dev_err(dev, "w83792d: Internal error: unknown" 1342 " kind (%d)?!?", kind); 1343 goto ERROR1; 1344 } 1345 1346 /* Fill in the remaining client fields and put into the global list */ 1347 strlcpy(client->name, client_name, I2C_NAME_SIZE); 1348 data->type = kind; 1349 1350 data->valid = 0; 1351 mutex_init(&data->update_lock); 1352 1353 /* Tell the I2C layer a new client has arrived */ 1354 if ((err = i2c_attach_client(client))) 1355 goto ERROR1; 1356 1357 if ((err = w83792d_detect_subclients(adapter, address, 1358 kind, client))) 1359 goto ERROR2; 1360 1361 /* Initialize the chip */ 1362 w83792d_init_client(client); 1363 1364 /* A few vars need to be filled upon startup */ 1365 for (i = 0; i < 7; i++) { 1366 data->fan_min[i] = w83792d_read_value(client, 1367 W83792D_REG_FAN_MIN[i]); 1368 } 1369 1370 /* Register sysfs hooks */ 1371 if ((err = sysfs_create_group(&dev->kobj, &w83792d_group))) 1372 goto ERROR3; 1373 1374 /* Read GPIO enable register to check if pins for fan 4,5 are used as 1375 GPIO */ 1376 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN); 1377 1378 if (!(val1 & 0x40)) 1379 if ((err = sysfs_create_group(&dev->kobj, 1380 &w83792d_group_fan[0]))) 1381 goto exit_remove_files; 1382 1383 if (!(val1 & 0x20)) 1384 if ((err = sysfs_create_group(&dev->kobj, 1385 &w83792d_group_fan[1]))) 1386 goto exit_remove_files; 1387 1388 val1 = w83792d_read_value(client, W83792D_REG_PIN); 1389 if (val1 & 0x40) 1390 if ((err = sysfs_create_group(&dev->kobj, 1391 &w83792d_group_fan[2]))) 1392 goto exit_remove_files; 1393 1394 if (val1 & 0x04) 1395 if ((err = sysfs_create_group(&dev->kobj, 1396 &w83792d_group_fan[3]))) 1397 goto exit_remove_files; 1398 1399 data->class_dev = hwmon_device_register(dev); 1400 if (IS_ERR(data->class_dev)) { 1401 err = PTR_ERR(data->class_dev); 1402 goto exit_remove_files; 1403 } 1404 1405 return 0; 1406 1407 exit_remove_files: 1408 sysfs_remove_group(&dev->kobj, &w83792d_group); 1409 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1410 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]); 1411 ERROR3: 1412 if (data->lm75[0] != NULL) { 1413 i2c_detach_client(data->lm75[0]); 1414 kfree(data->lm75[0]); 1415 } 1416 if (data->lm75[1] != NULL) { 1417 i2c_detach_client(data->lm75[1]); 1418 kfree(data->lm75[1]); 1419 } 1420 ERROR2: 1421 i2c_detach_client(client); 1422 ERROR1: 1423 kfree(data); 1424 ERROR0: 1425 return err; 1426 } 1427 1428 static int 1429 w83792d_detach_client(struct i2c_client *client) 1430 { 1431 struct w83792d_data *data = i2c_get_clientdata(client); 1432 int err, i; 1433 1434 /* main client */ 1435 if (data) { 1436 hwmon_device_unregister(data->class_dev); 1437 sysfs_remove_group(&client->dev.kobj, &w83792d_group); 1438 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1439 sysfs_remove_group(&client->dev.kobj, 1440 &w83792d_group_fan[i]); 1441 } 1442 1443 if ((err = i2c_detach_client(client))) 1444 return err; 1445 1446 /* main client */ 1447 if (data) 1448 kfree(data); 1449 /* subclient */ 1450 else 1451 kfree(client); 1452 1453 return 0; 1454 } 1455 1456 static void 1457 w83792d_init_client(struct i2c_client *client) 1458 { 1459 u8 temp2_cfg, temp3_cfg, vid_in_b; 1460 1461 if (init) { 1462 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80); 1463 } 1464 /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0): 1465 W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of 1466 vin0/vin1 can be modified by user; 1467 W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of 1468 vin0/vin1 auto-updated, can NOT be modified by user. */ 1469 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B); 1470 w83792d_write_value(client, W83792D_REG_VID_IN_B, 1471 vid_in_b & 0xbf); 1472 1473 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG); 1474 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG); 1475 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG, 1476 temp2_cfg & 0xe6); 1477 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG, 1478 temp3_cfg & 0xe6); 1479 1480 /* Start monitoring */ 1481 w83792d_write_value(client, W83792D_REG_CONFIG, 1482 (w83792d_read_value(client, 1483 W83792D_REG_CONFIG) & 0xf7) 1484 | 0x01); 1485 } 1486 1487 static struct w83792d_data *w83792d_update_device(struct device *dev) 1488 { 1489 struct i2c_client *client = to_i2c_client(dev); 1490 struct w83792d_data *data = i2c_get_clientdata(client); 1491 int i, j; 1492 u8 reg_array_tmp[4], reg_tmp; 1493 1494 mutex_lock(&data->update_lock); 1495 1496 if (time_after 1497 (jiffies - data->last_updated, (unsigned long) (HZ * 3)) 1498 || time_before(jiffies, data->last_updated) || !data->valid) { 1499 dev_dbg(dev, "Starting device update\n"); 1500 1501 /* Update the voltages measured value and limits */ 1502 for (i = 0; i < 9; i++) { 1503 data->in[i] = w83792d_read_value(client, 1504 W83792D_REG_IN[i]); 1505 data->in_max[i] = w83792d_read_value(client, 1506 W83792D_REG_IN_MAX[i]); 1507 data->in_min[i] = w83792d_read_value(client, 1508 W83792D_REG_IN_MIN[i]); 1509 } 1510 data->low_bits = w83792d_read_value(client, 1511 W83792D_REG_LOW_BITS1) + 1512 (w83792d_read_value(client, 1513 W83792D_REG_LOW_BITS2) << 8); 1514 for (i = 0; i < 7; i++) { 1515 /* Update the Fan measured value and limits */ 1516 data->fan[i] = w83792d_read_value(client, 1517 W83792D_REG_FAN[i]); 1518 data->fan_min[i] = w83792d_read_value(client, 1519 W83792D_REG_FAN_MIN[i]); 1520 /* Update the PWM/DC Value and PWM/DC flag */ 1521 data->pwm[i] = w83792d_read_value(client, 1522 W83792D_REG_PWM[i]); 1523 } 1524 1525 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG); 1526 data->pwmenable[0] = reg_tmp & 0x03; 1527 data->pwmenable[1] = (reg_tmp>>2) & 0x03; 1528 data->pwmenable[2] = (reg_tmp>>4) & 0x03; 1529 1530 for (i = 0; i < 3; i++) { 1531 data->temp1[i] = w83792d_read_value(client, 1532 W83792D_REG_TEMP1[i]); 1533 } 1534 for (i = 0; i < 2; i++) { 1535 for (j = 0; j < 6; j++) { 1536 data->temp_add[i][j] = w83792d_read_value( 1537 client,W83792D_REG_TEMP_ADD[i][j]); 1538 } 1539 } 1540 1541 /* Update the Fan Divisor */ 1542 for (i = 0; i < 4; i++) { 1543 reg_array_tmp[i] = w83792d_read_value(client, 1544 W83792D_REG_FAN_DIV[i]); 1545 } 1546 data->fan_div[0] = reg_array_tmp[0] & 0x07; 1547 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07; 1548 data->fan_div[2] = reg_array_tmp[1] & 0x07; 1549 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07; 1550 data->fan_div[4] = reg_array_tmp[2] & 0x07; 1551 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07; 1552 data->fan_div[6] = reg_array_tmp[3] & 0x07; 1553 1554 /* Update the realtime status */ 1555 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) + 1556 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) + 1557 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16); 1558 1559 /* Update CaseOpen status and it's CLR_CHS. */ 1560 data->chassis = (w83792d_read_value(client, 1561 W83792D_REG_CHASSIS) >> 5) & 0x01; 1562 data->chassis_clear = (w83792d_read_value(client, 1563 W83792D_REG_CHASSIS_CLR) >> 7) & 0x01; 1564 1565 /* Update Thermal Cruise/Smart Fan I target value */ 1566 for (i = 0; i < 3; i++) { 1567 data->thermal_cruise[i] = 1568 w83792d_read_value(client, 1569 W83792D_REG_THERMAL[i]) & 0x7f; 1570 } 1571 1572 /* Update Smart Fan I/II tolerance */ 1573 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]); 1574 data->tolerance[0] = reg_tmp & 0x0f; 1575 data->tolerance[1] = (reg_tmp >> 4) & 0x0f; 1576 data->tolerance[2] = w83792d_read_value(client, 1577 W83792D_REG_TOLERANCE[2]) & 0x0f; 1578 1579 /* Update Smart Fan II temperature points */ 1580 for (i = 0; i < 3; i++) { 1581 for (j = 0; j < 4; j++) { 1582 data->sf2_points[i][j] = w83792d_read_value( 1583 client,W83792D_REG_POINTS[i][j]) & 0x7f; 1584 } 1585 } 1586 1587 /* Update Smart Fan II duty cycle levels */ 1588 for (i = 0; i < 3; i++) { 1589 reg_tmp = w83792d_read_value(client, 1590 W83792D_REG_LEVELS[i][0]); 1591 data->sf2_levels[i][0] = reg_tmp & 0x0f; 1592 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f; 1593 reg_tmp = w83792d_read_value(client, 1594 W83792D_REG_LEVELS[i][2]); 1595 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f; 1596 data->sf2_levels[i][3] = reg_tmp & 0x0f; 1597 } 1598 1599 data->last_updated = jiffies; 1600 data->valid = 1; 1601 } 1602 1603 mutex_unlock(&data->update_lock); 1604 1605 #ifdef DEBUG 1606 w83792d_print_debug(data, dev); 1607 #endif 1608 1609 return data; 1610 } 1611 1612 #ifdef DEBUG 1613 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev) 1614 { 1615 int i=0, j=0; 1616 dev_dbg(dev, "==========The following is the debug message...========\n"); 1617 dev_dbg(dev, "9 set of Voltages: =====>\n"); 1618 for (i=0; i<9; i++) { 1619 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]); 1620 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]); 1621 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]); 1622 } 1623 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff); 1624 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8); 1625 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n"); 1626 for (i=0; i<7; i++) { 1627 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]); 1628 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]); 1629 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]); 1630 } 1631 dev_dbg(dev, "3 set of Temperatures: =====>\n"); 1632 for (i=0; i<3; i++) { 1633 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]); 1634 } 1635 1636 for (i=0; i<2; i++) { 1637 for (j=0; j<6; j++) { 1638 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j, 1639 data->temp_add[i][j]); 1640 } 1641 } 1642 1643 for (i=0; i<7; i++) { 1644 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]); 1645 } 1646 dev_dbg(dev, "==========End of the debug message...==================\n"); 1647 dev_dbg(dev, "\n"); 1648 } 1649 #endif 1650 1651 static int __init 1652 sensors_w83792d_init(void) 1653 { 1654 return i2c_add_driver(&w83792d_driver); 1655 } 1656 1657 static void __exit 1658 sensors_w83792d_exit(void) 1659 { 1660 i2c_del_driver(&w83792d_driver); 1661 } 1662 1663 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>"); 1664 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6"); 1665 MODULE_LICENSE("GPL"); 1666 1667 module_init(sensors_w83792d_init); 1668 module_exit(sensors_w83792d_exit); 1669 1670