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 device *hwmon_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 show_alarm(struct device *dev, 544 struct device_attribute *attr, char *buf) 545 { 546 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 547 int nr = sensor_attr->index; 548 struct w83792d_data *data = w83792d_update_device(dev); 549 return sprintf(buf, "%d\n", (data->alarms >> nr) & 1); 550 } 551 552 static ssize_t 553 show_pwm(struct device *dev, struct device_attribute *attr, 554 char *buf) 555 { 556 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 557 int nr = sensor_attr->index; 558 struct w83792d_data *data = w83792d_update_device(dev); 559 return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4); 560 } 561 562 static ssize_t 563 show_pwmenable(struct device *dev, struct device_attribute *attr, 564 char *buf) 565 { 566 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 567 int nr = sensor_attr->index - 1; 568 struct w83792d_data *data = w83792d_update_device(dev); 569 long pwm_enable_tmp = 1; 570 571 switch (data->pwmenable[nr]) { 572 case 0: 573 pwm_enable_tmp = 1; /* manual mode */ 574 break; 575 case 1: 576 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */ 577 break; 578 case 2: 579 pwm_enable_tmp = 2; /* Smart Fan II */ 580 break; 581 } 582 583 return sprintf(buf, "%ld\n", pwm_enable_tmp); 584 } 585 586 static ssize_t 587 store_pwm(struct device *dev, struct device_attribute *attr, 588 const char *buf, size_t count) 589 { 590 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 591 int nr = sensor_attr->index; 592 struct i2c_client *client = to_i2c_client(dev); 593 struct w83792d_data *data = i2c_get_clientdata(client); 594 u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255) >> 4; 595 596 mutex_lock(&data->update_lock); 597 val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0; 598 data->pwm[nr] = val; 599 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 600 mutex_unlock(&data->update_lock); 601 602 return count; 603 } 604 605 static ssize_t 606 store_pwmenable(struct device *dev, struct device_attribute *attr, 607 const char *buf, size_t count) 608 { 609 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 610 int nr = sensor_attr->index - 1; 611 struct i2c_client *client = to_i2c_client(dev); 612 struct w83792d_data *data = i2c_get_clientdata(client); 613 u32 val; 614 u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp; 615 616 val = simple_strtoul(buf, NULL, 10); 617 if (val < 1 || val > 3) 618 return -EINVAL; 619 620 mutex_lock(&data->update_lock); 621 switch (val) { 622 case 1: 623 data->pwmenable[nr] = 0; /* manual mode */ 624 break; 625 case 2: 626 data->pwmenable[nr] = 2; /* Smart Fan II */ 627 break; 628 case 3: 629 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */ 630 break; 631 } 632 cfg1_tmp = data->pwmenable[0]; 633 cfg2_tmp = (data->pwmenable[1]) << 2; 634 cfg3_tmp = (data->pwmenable[2]) << 4; 635 cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0; 636 fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp; 637 w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp); 638 mutex_unlock(&data->update_lock); 639 640 return count; 641 } 642 643 static ssize_t 644 show_pwm_mode(struct device *dev, struct device_attribute *attr, 645 char *buf) 646 { 647 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 648 int nr = sensor_attr->index; 649 struct w83792d_data *data = w83792d_update_device(dev); 650 return sprintf(buf, "%d\n", data->pwm[nr] >> 7); 651 } 652 653 static ssize_t 654 store_pwm_mode(struct device *dev, struct device_attribute *attr, 655 const char *buf, size_t count) 656 { 657 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 658 int nr = sensor_attr->index; 659 struct i2c_client *client = to_i2c_client(dev); 660 struct w83792d_data *data = i2c_get_clientdata(client); 661 u32 val; 662 663 val = simple_strtoul(buf, NULL, 10); 664 if (val != 0 && val != 1) 665 return -EINVAL; 666 667 mutex_lock(&data->update_lock); 668 data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]); 669 if (val) { /* PWM mode */ 670 data->pwm[nr] |= 0x80; 671 } else { /* DC mode */ 672 data->pwm[nr] &= 0x7f; 673 } 674 w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]); 675 mutex_unlock(&data->update_lock); 676 677 return count; 678 } 679 680 static ssize_t 681 show_regs_chassis(struct device *dev, struct device_attribute *attr, 682 char *buf) 683 { 684 struct w83792d_data *data = w83792d_update_device(dev); 685 return sprintf(buf, "%d\n", data->chassis); 686 } 687 688 static ssize_t 689 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf) 690 { 691 struct w83792d_data *data = w83792d_update_device(dev); 692 return sprintf(buf, "%d\n", data->chassis_clear); 693 } 694 695 static ssize_t 696 store_chassis_clear(struct device *dev, struct device_attribute *attr, 697 const char *buf, size_t count) 698 { 699 struct i2c_client *client = to_i2c_client(dev); 700 struct w83792d_data *data = i2c_get_clientdata(client); 701 u32 val; 702 u8 temp1 = 0, temp2 = 0; 703 704 val = simple_strtoul(buf, NULL, 10); 705 mutex_lock(&data->update_lock); 706 data->chassis_clear = SENSORS_LIMIT(val, 0 ,1); 707 temp1 = ((data->chassis_clear) << 7) & 0x80; 708 temp2 = w83792d_read_value(client, 709 W83792D_REG_CHASSIS_CLR) & 0x7f; 710 w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2); 711 mutex_unlock(&data->update_lock); 712 713 return count; 714 } 715 716 /* For Smart Fan I / Thermal Cruise */ 717 static ssize_t 718 show_thermal_cruise(struct device *dev, struct device_attribute *attr, 719 char *buf) 720 { 721 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 722 int nr = sensor_attr->index; 723 struct w83792d_data *data = w83792d_update_device(dev); 724 return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]); 725 } 726 727 static ssize_t 728 store_thermal_cruise(struct device *dev, struct device_attribute *attr, 729 const char *buf, size_t count) 730 { 731 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 732 int nr = sensor_attr->index - 1; 733 struct i2c_client *client = to_i2c_client(dev); 734 struct w83792d_data *data = i2c_get_clientdata(client); 735 u32 val; 736 u8 target_tmp=0, target_mask=0; 737 738 val = simple_strtoul(buf, NULL, 10); 739 target_tmp = val; 740 target_tmp = target_tmp & 0x7f; 741 mutex_lock(&data->update_lock); 742 target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80; 743 data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255); 744 w83792d_write_value(client, W83792D_REG_THERMAL[nr], 745 (data->thermal_cruise[nr]) | target_mask); 746 mutex_unlock(&data->update_lock); 747 748 return count; 749 } 750 751 /* For Smart Fan I/Thermal Cruise and Smart Fan II */ 752 static ssize_t 753 show_tolerance(struct device *dev, struct device_attribute *attr, 754 char *buf) 755 { 756 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 757 int nr = sensor_attr->index; 758 struct w83792d_data *data = w83792d_update_device(dev); 759 return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]); 760 } 761 762 static ssize_t 763 store_tolerance(struct device *dev, struct device_attribute *attr, 764 const char *buf, size_t count) 765 { 766 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 767 int nr = sensor_attr->index - 1; 768 struct i2c_client *client = to_i2c_client(dev); 769 struct w83792d_data *data = i2c_get_clientdata(client); 770 u32 val; 771 u8 tol_tmp, tol_mask; 772 773 val = simple_strtoul(buf, NULL, 10); 774 mutex_lock(&data->update_lock); 775 tol_mask = w83792d_read_value(client, 776 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0); 777 tol_tmp = SENSORS_LIMIT(val, 0, 15); 778 tol_tmp &= 0x0f; 779 data->tolerance[nr] = tol_tmp; 780 if (nr == 1) { 781 tol_tmp <<= 4; 782 } 783 w83792d_write_value(client, W83792D_REG_TOLERANCE[nr], 784 tol_mask | tol_tmp); 785 mutex_unlock(&data->update_lock); 786 787 return count; 788 } 789 790 /* For Smart Fan II */ 791 static ssize_t 792 show_sf2_point(struct device *dev, struct device_attribute *attr, 793 char *buf) 794 { 795 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 796 int nr = sensor_attr->nr; 797 int index = sensor_attr->index; 798 struct w83792d_data *data = w83792d_update_device(dev); 799 return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]); 800 } 801 802 static ssize_t 803 store_sf2_point(struct device *dev, struct device_attribute *attr, 804 const char *buf, size_t count) 805 { 806 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 807 int nr = sensor_attr->nr - 1; 808 int index = sensor_attr->index - 1; 809 struct i2c_client *client = to_i2c_client(dev); 810 struct w83792d_data *data = i2c_get_clientdata(client); 811 u32 val; 812 u8 mask_tmp = 0; 813 814 val = simple_strtoul(buf, NULL, 10); 815 mutex_lock(&data->update_lock); 816 data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127); 817 mask_tmp = w83792d_read_value(client, 818 W83792D_REG_POINTS[index][nr]) & 0x80; 819 w83792d_write_value(client, W83792D_REG_POINTS[index][nr], 820 mask_tmp|data->sf2_points[index][nr]); 821 mutex_unlock(&data->update_lock); 822 823 return count; 824 } 825 826 static ssize_t 827 show_sf2_level(struct device *dev, struct device_attribute *attr, 828 char *buf) 829 { 830 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 831 int nr = sensor_attr->nr; 832 int index = sensor_attr->index; 833 struct w83792d_data *data = w83792d_update_device(dev); 834 return sprintf(buf, "%d\n", 835 (((data->sf2_levels[index-1][nr]) * 100) / 15)); 836 } 837 838 static ssize_t 839 store_sf2_level(struct device *dev, struct device_attribute *attr, 840 const char *buf, size_t count) 841 { 842 struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); 843 int nr = sensor_attr->nr; 844 int index = sensor_attr->index - 1; 845 struct i2c_client *client = to_i2c_client(dev); 846 struct w83792d_data *data = i2c_get_clientdata(client); 847 u32 val; 848 u8 mask_tmp=0, level_tmp=0; 849 850 val = simple_strtoul(buf, NULL, 10); 851 mutex_lock(&data->update_lock); 852 data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15); 853 mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr]) 854 & ((nr==3) ? 0xf0 : 0x0f); 855 if (nr==3) { 856 level_tmp = data->sf2_levels[index][nr]; 857 } else { 858 level_tmp = data->sf2_levels[index][nr] << 4; 859 } 860 w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp); 861 mutex_unlock(&data->update_lock); 862 863 return count; 864 } 865 866 /* This function is called when: 867 * w83792d_driver is inserted (when this module is loaded), for each 868 available adapter 869 * when a new adapter is inserted (and w83792d_driver is still present) */ 870 static int 871 w83792d_attach_adapter(struct i2c_adapter *adapter) 872 { 873 if (!(adapter->class & I2C_CLASS_HWMON)) 874 return 0; 875 return i2c_probe(adapter, &addr_data, w83792d_detect); 876 } 877 878 879 static int 880 w83792d_create_subclient(struct i2c_adapter *adapter, 881 struct i2c_client *new_client, int addr, 882 struct i2c_client **sub_cli) 883 { 884 int err; 885 struct i2c_client *sub_client; 886 887 (*sub_cli) = sub_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); 888 if (!(sub_client)) { 889 return -ENOMEM; 890 } 891 sub_client->addr = 0x48 + addr; 892 i2c_set_clientdata(sub_client, NULL); 893 sub_client->adapter = adapter; 894 sub_client->driver = &w83792d_driver; 895 sub_client->flags = 0; 896 strlcpy(sub_client->name, "w83792d subclient", I2C_NAME_SIZE); 897 if ((err = i2c_attach_client(sub_client))) { 898 dev_err(&new_client->dev, "subclient registration " 899 "at address 0x%x failed\n", sub_client->addr); 900 kfree(sub_client); 901 return err; 902 } 903 return 0; 904 } 905 906 907 static int 908 w83792d_detect_subclients(struct i2c_adapter *adapter, int address, int kind, 909 struct i2c_client *new_client) 910 { 911 int i, id, err; 912 u8 val; 913 struct w83792d_data *data = i2c_get_clientdata(new_client); 914 915 id = i2c_adapter_id(adapter); 916 if (force_subclients[0] == id && force_subclients[1] == address) { 917 for (i = 2; i <= 3; i++) { 918 if (force_subclients[i] < 0x48 || 919 force_subclients[i] > 0x4f) { 920 dev_err(&new_client->dev, "invalid subclient " 921 "address %d; must be 0x48-0x4f\n", 922 force_subclients[i]); 923 err = -ENODEV; 924 goto ERROR_SC_0; 925 } 926 } 927 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR, 928 (force_subclients[2] & 0x07) | 929 ((force_subclients[3] & 0x07) << 4)); 930 } 931 932 val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR); 933 if (!(val & 0x08)) { 934 err = w83792d_create_subclient(adapter, new_client, val & 0x7, 935 &data->lm75[0]); 936 if (err < 0) 937 goto ERROR_SC_0; 938 } 939 if (!(val & 0x80)) { 940 if ((data->lm75[0] != NULL) && 941 ((val & 0x7) == ((val >> 4) & 0x7))) { 942 dev_err(&new_client->dev, "duplicate addresses 0x%x, " 943 "use force_subclient\n", data->lm75[0]->addr); 944 err = -ENODEV; 945 goto ERROR_SC_1; 946 } 947 err = w83792d_create_subclient(adapter, new_client, 948 (val >> 4) & 0x7, &data->lm75[1]); 949 if (err < 0) 950 goto ERROR_SC_1; 951 } 952 953 return 0; 954 955 /* Undo inits in case of errors */ 956 957 ERROR_SC_1: 958 if (data->lm75[0] != NULL) { 959 i2c_detach_client(data->lm75[0]); 960 kfree(data->lm75[0]); 961 } 962 ERROR_SC_0: 963 return err; 964 } 965 966 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); 967 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); 968 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); 969 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); 970 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4); 971 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5); 972 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6); 973 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7); 974 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8); 975 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO, 976 show_in_min, store_in_min, 0); 977 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, 978 show_in_min, store_in_min, 1); 979 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, 980 show_in_min, store_in_min, 2); 981 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO, 982 show_in_min, store_in_min, 3); 983 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO, 984 show_in_min, store_in_min, 4); 985 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO, 986 show_in_min, store_in_min, 5); 987 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO, 988 show_in_min, store_in_min, 6); 989 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO, 990 show_in_min, store_in_min, 7); 991 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO, 992 show_in_min, store_in_min, 8); 993 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO, 994 show_in_max, store_in_max, 0); 995 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, 996 show_in_max, store_in_max, 1); 997 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, 998 show_in_max, store_in_max, 2); 999 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO, 1000 show_in_max, store_in_max, 3); 1001 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO, 1002 show_in_max, store_in_max, 4); 1003 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO, 1004 show_in_max, store_in_max, 5); 1005 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO, 1006 show_in_max, store_in_max, 6); 1007 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO, 1008 show_in_max, store_in_max, 7); 1009 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO, 1010 show_in_max, store_in_max, 8); 1011 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0); 1012 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0); 1013 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0); 1014 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, 1015 show_temp1, store_temp1, 0, 1); 1016 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23, 1017 store_temp23, 0, 2); 1018 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23, 1019 store_temp23, 1, 2); 1020 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, 1021 show_temp1, store_temp1, 0, 2); 1022 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, 1023 show_temp23, store_temp23, 0, 4); 1024 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, 1025 show_temp23, store_temp23, 1, 4); 1026 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); 1027 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); 1028 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); 1029 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2); 1030 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3); 1031 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4); 1032 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5); 1033 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6); 1034 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7); 1035 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8); 1036 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9); 1037 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10); 1038 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11); 1039 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12); 1040 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15); 1041 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19); 1042 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20); 1043 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21); 1044 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22); 1045 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23); 1046 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL); 1047 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR, 1048 show_chassis_clear, store_chassis_clear); 1049 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0); 1050 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1); 1051 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2); 1052 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, 1053 show_pwmenable, store_pwmenable, 1); 1054 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, 1055 show_pwmenable, store_pwmenable, 2); 1056 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, 1057 show_pwmenable, store_pwmenable, 3); 1058 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, 1059 show_pwm_mode, store_pwm_mode, 0); 1060 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, 1061 show_pwm_mode, store_pwm_mode, 1); 1062 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, 1063 show_pwm_mode, store_pwm_mode, 2); 1064 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO, 1065 show_tolerance, store_tolerance, 1); 1066 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO, 1067 show_tolerance, store_tolerance, 2); 1068 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO, 1069 show_tolerance, store_tolerance, 3); 1070 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO, 1071 show_thermal_cruise, store_thermal_cruise, 1); 1072 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO, 1073 show_thermal_cruise, store_thermal_cruise, 2); 1074 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO, 1075 show_thermal_cruise, store_thermal_cruise, 3); 1076 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR, 1077 show_sf2_point, store_sf2_point, 1, 1); 1078 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR, 1079 show_sf2_point, store_sf2_point, 2, 1); 1080 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR, 1081 show_sf2_point, store_sf2_point, 3, 1); 1082 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR, 1083 show_sf2_point, store_sf2_point, 4, 1); 1084 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR, 1085 show_sf2_point, store_sf2_point, 1, 2); 1086 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR, 1087 show_sf2_point, store_sf2_point, 2, 2); 1088 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR, 1089 show_sf2_point, store_sf2_point, 3, 2); 1090 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR, 1091 show_sf2_point, store_sf2_point, 4, 2); 1092 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR, 1093 show_sf2_point, store_sf2_point, 1, 3); 1094 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR, 1095 show_sf2_point, store_sf2_point, 2, 3); 1096 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR, 1097 show_sf2_point, store_sf2_point, 3, 3); 1098 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR, 1099 show_sf2_point, store_sf2_point, 4, 3); 1100 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR, 1101 show_sf2_level, store_sf2_level, 1, 1); 1102 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR, 1103 show_sf2_level, store_sf2_level, 2, 1); 1104 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR, 1105 show_sf2_level, store_sf2_level, 3, 1); 1106 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR, 1107 show_sf2_level, store_sf2_level, 1, 2); 1108 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR, 1109 show_sf2_level, store_sf2_level, 2, 2); 1110 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR, 1111 show_sf2_level, store_sf2_level, 3, 2); 1112 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR, 1113 show_sf2_level, store_sf2_level, 1, 3); 1114 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR, 1115 show_sf2_level, store_sf2_level, 2, 3); 1116 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR, 1117 show_sf2_level, store_sf2_level, 3, 3); 1118 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1); 1119 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2); 1120 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3); 1121 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4); 1122 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5); 1123 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6); 1124 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7); 1125 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, 1126 show_fan_min, store_fan_min, 1); 1127 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, 1128 show_fan_min, store_fan_min, 2); 1129 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, 1130 show_fan_min, store_fan_min, 3); 1131 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, 1132 show_fan_min, store_fan_min, 4); 1133 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO, 1134 show_fan_min, store_fan_min, 5); 1135 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO, 1136 show_fan_min, store_fan_min, 6); 1137 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO, 1138 show_fan_min, store_fan_min, 7); 1139 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO, 1140 show_fan_div, store_fan_div, 1); 1141 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO, 1142 show_fan_div, store_fan_div, 2); 1143 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO, 1144 show_fan_div, store_fan_div, 3); 1145 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO, 1146 show_fan_div, store_fan_div, 4); 1147 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO, 1148 show_fan_div, store_fan_div, 5); 1149 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO, 1150 show_fan_div, store_fan_div, 6); 1151 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO, 1152 show_fan_div, store_fan_div, 7); 1153 1154 static struct attribute *w83792d_attributes_fan[4][5] = { 1155 { 1156 &sensor_dev_attr_fan4_input.dev_attr.attr, 1157 &sensor_dev_attr_fan4_min.dev_attr.attr, 1158 &sensor_dev_attr_fan4_div.dev_attr.attr, 1159 &sensor_dev_attr_fan4_alarm.dev_attr.attr, 1160 NULL 1161 }, { 1162 &sensor_dev_attr_fan5_input.dev_attr.attr, 1163 &sensor_dev_attr_fan5_min.dev_attr.attr, 1164 &sensor_dev_attr_fan5_div.dev_attr.attr, 1165 &sensor_dev_attr_fan5_alarm.dev_attr.attr, 1166 NULL 1167 }, { 1168 &sensor_dev_attr_fan6_input.dev_attr.attr, 1169 &sensor_dev_attr_fan6_min.dev_attr.attr, 1170 &sensor_dev_attr_fan6_div.dev_attr.attr, 1171 &sensor_dev_attr_fan6_alarm.dev_attr.attr, 1172 NULL 1173 }, { 1174 &sensor_dev_attr_fan7_input.dev_attr.attr, 1175 &sensor_dev_attr_fan7_min.dev_attr.attr, 1176 &sensor_dev_attr_fan7_div.dev_attr.attr, 1177 &sensor_dev_attr_fan7_alarm.dev_attr.attr, 1178 NULL 1179 } 1180 }; 1181 1182 static const struct attribute_group w83792d_group_fan[4] = { 1183 { .attrs = w83792d_attributes_fan[0] }, 1184 { .attrs = w83792d_attributes_fan[1] }, 1185 { .attrs = w83792d_attributes_fan[2] }, 1186 { .attrs = w83792d_attributes_fan[3] }, 1187 }; 1188 1189 static struct attribute *w83792d_attributes[] = { 1190 &sensor_dev_attr_in0_input.dev_attr.attr, 1191 &sensor_dev_attr_in0_max.dev_attr.attr, 1192 &sensor_dev_attr_in0_min.dev_attr.attr, 1193 &sensor_dev_attr_in1_input.dev_attr.attr, 1194 &sensor_dev_attr_in1_max.dev_attr.attr, 1195 &sensor_dev_attr_in1_min.dev_attr.attr, 1196 &sensor_dev_attr_in2_input.dev_attr.attr, 1197 &sensor_dev_attr_in2_max.dev_attr.attr, 1198 &sensor_dev_attr_in2_min.dev_attr.attr, 1199 &sensor_dev_attr_in3_input.dev_attr.attr, 1200 &sensor_dev_attr_in3_max.dev_attr.attr, 1201 &sensor_dev_attr_in3_min.dev_attr.attr, 1202 &sensor_dev_attr_in4_input.dev_attr.attr, 1203 &sensor_dev_attr_in4_max.dev_attr.attr, 1204 &sensor_dev_attr_in4_min.dev_attr.attr, 1205 &sensor_dev_attr_in5_input.dev_attr.attr, 1206 &sensor_dev_attr_in5_max.dev_attr.attr, 1207 &sensor_dev_attr_in5_min.dev_attr.attr, 1208 &sensor_dev_attr_in6_input.dev_attr.attr, 1209 &sensor_dev_attr_in6_max.dev_attr.attr, 1210 &sensor_dev_attr_in6_min.dev_attr.attr, 1211 &sensor_dev_attr_in7_input.dev_attr.attr, 1212 &sensor_dev_attr_in7_max.dev_attr.attr, 1213 &sensor_dev_attr_in7_min.dev_attr.attr, 1214 &sensor_dev_attr_in8_input.dev_attr.attr, 1215 &sensor_dev_attr_in8_max.dev_attr.attr, 1216 &sensor_dev_attr_in8_min.dev_attr.attr, 1217 &sensor_dev_attr_in0_alarm.dev_attr.attr, 1218 &sensor_dev_attr_in1_alarm.dev_attr.attr, 1219 &sensor_dev_attr_in2_alarm.dev_attr.attr, 1220 &sensor_dev_attr_in3_alarm.dev_attr.attr, 1221 &sensor_dev_attr_in4_alarm.dev_attr.attr, 1222 &sensor_dev_attr_in5_alarm.dev_attr.attr, 1223 &sensor_dev_attr_in6_alarm.dev_attr.attr, 1224 &sensor_dev_attr_in7_alarm.dev_attr.attr, 1225 &sensor_dev_attr_in8_alarm.dev_attr.attr, 1226 &sensor_dev_attr_temp1_input.dev_attr.attr, 1227 &sensor_dev_attr_temp1_max.dev_attr.attr, 1228 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, 1229 &sensor_dev_attr_temp2_input.dev_attr.attr, 1230 &sensor_dev_attr_temp2_max.dev_attr.attr, 1231 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, 1232 &sensor_dev_attr_temp3_input.dev_attr.attr, 1233 &sensor_dev_attr_temp3_max.dev_attr.attr, 1234 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, 1235 &sensor_dev_attr_temp1_alarm.dev_attr.attr, 1236 &sensor_dev_attr_temp2_alarm.dev_attr.attr, 1237 &sensor_dev_attr_temp3_alarm.dev_attr.attr, 1238 &sensor_dev_attr_pwm1.dev_attr.attr, 1239 &sensor_dev_attr_pwm1_mode.dev_attr.attr, 1240 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 1241 &sensor_dev_attr_pwm2.dev_attr.attr, 1242 &sensor_dev_attr_pwm2_mode.dev_attr.attr, 1243 &sensor_dev_attr_pwm2_enable.dev_attr.attr, 1244 &sensor_dev_attr_pwm3.dev_attr.attr, 1245 &sensor_dev_attr_pwm3_mode.dev_attr.attr, 1246 &sensor_dev_attr_pwm3_enable.dev_attr.attr, 1247 &dev_attr_alarms.attr, 1248 &dev_attr_chassis.attr, 1249 &dev_attr_chassis_clear.attr, 1250 &sensor_dev_attr_tolerance1.dev_attr.attr, 1251 &sensor_dev_attr_thermal_cruise1.dev_attr.attr, 1252 &sensor_dev_attr_tolerance2.dev_attr.attr, 1253 &sensor_dev_attr_thermal_cruise2.dev_attr.attr, 1254 &sensor_dev_attr_tolerance3.dev_attr.attr, 1255 &sensor_dev_attr_thermal_cruise3.dev_attr.attr, 1256 &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr, 1257 &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr, 1258 &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr, 1259 &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr, 1260 &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr, 1261 &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr, 1262 &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr, 1263 &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr, 1264 &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr, 1265 &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr, 1266 &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr, 1267 &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr, 1268 &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr, 1269 &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr, 1270 &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr, 1271 &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr, 1272 &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr, 1273 &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr, 1274 &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr, 1275 &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr, 1276 &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr, 1277 &sensor_dev_attr_fan1_input.dev_attr.attr, 1278 &sensor_dev_attr_fan1_min.dev_attr.attr, 1279 &sensor_dev_attr_fan1_div.dev_attr.attr, 1280 &sensor_dev_attr_fan1_alarm.dev_attr.attr, 1281 &sensor_dev_attr_fan2_input.dev_attr.attr, 1282 &sensor_dev_attr_fan2_min.dev_attr.attr, 1283 &sensor_dev_attr_fan2_div.dev_attr.attr, 1284 &sensor_dev_attr_fan2_alarm.dev_attr.attr, 1285 &sensor_dev_attr_fan3_input.dev_attr.attr, 1286 &sensor_dev_attr_fan3_min.dev_attr.attr, 1287 &sensor_dev_attr_fan3_div.dev_attr.attr, 1288 &sensor_dev_attr_fan3_alarm.dev_attr.attr, 1289 NULL 1290 }; 1291 1292 static const struct attribute_group w83792d_group = { 1293 .attrs = w83792d_attributes, 1294 }; 1295 1296 static int 1297 w83792d_detect(struct i2c_adapter *adapter, int address, int kind) 1298 { 1299 int i = 0, val1 = 0, val2; 1300 struct i2c_client *client; 1301 struct device *dev; 1302 struct w83792d_data *data; 1303 int err = 0; 1304 const char *client_name = ""; 1305 1306 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { 1307 goto ERROR0; 1308 } 1309 1310 /* OK. For now, we presume we have a valid client. We now create the 1311 client structure, even though we cannot fill it completely yet. 1312 But it allows us to access w83792d_{read,write}_value. */ 1313 1314 if (!(data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL))) { 1315 err = -ENOMEM; 1316 goto ERROR0; 1317 } 1318 1319 client = &data->client; 1320 dev = &client->dev; 1321 i2c_set_clientdata(client, data); 1322 client->addr = address; 1323 client->adapter = adapter; 1324 client->driver = &w83792d_driver; 1325 client->flags = 0; 1326 1327 /* Now, we do the remaining detection. */ 1328 1329 /* The w83792d may be stuck in some other bank than bank 0. This may 1330 make reading other information impossible. Specify a force=... or 1331 force_*=... parameter, and the Winbond will be reset to the right 1332 bank. */ 1333 if (kind < 0) { 1334 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) { 1335 dev_dbg(dev, "Detection failed at step 1\n"); 1336 goto ERROR1; 1337 } 1338 val1 = w83792d_read_value(client, W83792D_REG_BANK); 1339 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1340 /* Check for Winbond ID if in bank 0 */ 1341 if (!(val1 & 0x07)) { /* is Bank0 */ 1342 if (((!(val1 & 0x80)) && (val2 != 0xa3)) || 1343 ((val1 & 0x80) && (val2 != 0x5c))) { 1344 dev_dbg(dev, "Detection failed at step 2\n"); 1345 goto ERROR1; 1346 } 1347 } 1348 /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR 1349 should match */ 1350 if (w83792d_read_value(client, 1351 W83792D_REG_I2C_ADDR) != address) { 1352 dev_dbg(dev, "Detection failed at step 3\n"); 1353 goto ERROR1; 1354 } 1355 } 1356 1357 /* We have either had a force parameter, or we have already detected the 1358 Winbond. Put it now into bank 0 and Vendor ID High Byte */ 1359 w83792d_write_value(client, 1360 W83792D_REG_BANK, 1361 (w83792d_read_value(client, 1362 W83792D_REG_BANK) & 0x78) | 0x80); 1363 1364 /* Determine the chip type. */ 1365 if (kind <= 0) { 1366 /* get vendor ID */ 1367 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN); 1368 if (val2 != 0x5c) { /* the vendor is NOT Winbond */ 1369 goto ERROR1; 1370 } 1371 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID); 1372 if (val1 == 0x7a) { 1373 kind = w83792d; 1374 } else { 1375 if (kind == 0) 1376 dev_warn(dev, 1377 "w83792d: Ignoring 'force' parameter for" 1378 " unknown chip at adapter %d, address" 1379 " 0x%02x\n", i2c_adapter_id(adapter), 1380 address); 1381 goto ERROR1; 1382 } 1383 } 1384 1385 if (kind == w83792d) { 1386 client_name = "w83792d"; 1387 } else { 1388 dev_err(dev, "w83792d: Internal error: unknown kind (%d)?!?\n", 1389 kind); 1390 goto ERROR1; 1391 } 1392 1393 /* Fill in the remaining client fields and put into the global list */ 1394 strlcpy(client->name, client_name, I2C_NAME_SIZE); 1395 data->type = kind; 1396 1397 data->valid = 0; 1398 mutex_init(&data->update_lock); 1399 1400 /* Tell the I2C layer a new client has arrived */ 1401 if ((err = i2c_attach_client(client))) 1402 goto ERROR1; 1403 1404 if ((err = w83792d_detect_subclients(adapter, address, 1405 kind, client))) 1406 goto ERROR2; 1407 1408 /* Initialize the chip */ 1409 w83792d_init_client(client); 1410 1411 /* A few vars need to be filled upon startup */ 1412 for (i = 0; i < 7; i++) { 1413 data->fan_min[i] = w83792d_read_value(client, 1414 W83792D_REG_FAN_MIN[i]); 1415 } 1416 1417 /* Register sysfs hooks */ 1418 if ((err = sysfs_create_group(&dev->kobj, &w83792d_group))) 1419 goto ERROR3; 1420 1421 /* Read GPIO enable register to check if pins for fan 4,5 are used as 1422 GPIO */ 1423 val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN); 1424 1425 if (!(val1 & 0x40)) 1426 if ((err = sysfs_create_group(&dev->kobj, 1427 &w83792d_group_fan[0]))) 1428 goto exit_remove_files; 1429 1430 if (!(val1 & 0x20)) 1431 if ((err = sysfs_create_group(&dev->kobj, 1432 &w83792d_group_fan[1]))) 1433 goto exit_remove_files; 1434 1435 val1 = w83792d_read_value(client, W83792D_REG_PIN); 1436 if (val1 & 0x40) 1437 if ((err = sysfs_create_group(&dev->kobj, 1438 &w83792d_group_fan[2]))) 1439 goto exit_remove_files; 1440 1441 if (val1 & 0x04) 1442 if ((err = sysfs_create_group(&dev->kobj, 1443 &w83792d_group_fan[3]))) 1444 goto exit_remove_files; 1445 1446 data->hwmon_dev = hwmon_device_register(dev); 1447 if (IS_ERR(data->hwmon_dev)) { 1448 err = PTR_ERR(data->hwmon_dev); 1449 goto exit_remove_files; 1450 } 1451 1452 return 0; 1453 1454 exit_remove_files: 1455 sysfs_remove_group(&dev->kobj, &w83792d_group); 1456 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1457 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]); 1458 ERROR3: 1459 if (data->lm75[0] != NULL) { 1460 i2c_detach_client(data->lm75[0]); 1461 kfree(data->lm75[0]); 1462 } 1463 if (data->lm75[1] != NULL) { 1464 i2c_detach_client(data->lm75[1]); 1465 kfree(data->lm75[1]); 1466 } 1467 ERROR2: 1468 i2c_detach_client(client); 1469 ERROR1: 1470 kfree(data); 1471 ERROR0: 1472 return err; 1473 } 1474 1475 static int 1476 w83792d_detach_client(struct i2c_client *client) 1477 { 1478 struct w83792d_data *data = i2c_get_clientdata(client); 1479 int err, i; 1480 1481 /* main client */ 1482 if (data) { 1483 hwmon_device_unregister(data->hwmon_dev); 1484 sysfs_remove_group(&client->dev.kobj, &w83792d_group); 1485 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++) 1486 sysfs_remove_group(&client->dev.kobj, 1487 &w83792d_group_fan[i]); 1488 } 1489 1490 if ((err = i2c_detach_client(client))) 1491 return err; 1492 1493 /* main client */ 1494 if (data) 1495 kfree(data); 1496 /* subclient */ 1497 else 1498 kfree(client); 1499 1500 return 0; 1501 } 1502 1503 static void 1504 w83792d_init_client(struct i2c_client *client) 1505 { 1506 u8 temp2_cfg, temp3_cfg, vid_in_b; 1507 1508 if (init) { 1509 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80); 1510 } 1511 /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0): 1512 W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of 1513 vin0/vin1 can be modified by user; 1514 W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of 1515 vin0/vin1 auto-updated, can NOT be modified by user. */ 1516 vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B); 1517 w83792d_write_value(client, W83792D_REG_VID_IN_B, 1518 vid_in_b & 0xbf); 1519 1520 temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG); 1521 temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG); 1522 w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG, 1523 temp2_cfg & 0xe6); 1524 w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG, 1525 temp3_cfg & 0xe6); 1526 1527 /* Start monitoring */ 1528 w83792d_write_value(client, W83792D_REG_CONFIG, 1529 (w83792d_read_value(client, 1530 W83792D_REG_CONFIG) & 0xf7) 1531 | 0x01); 1532 } 1533 1534 static struct w83792d_data *w83792d_update_device(struct device *dev) 1535 { 1536 struct i2c_client *client = to_i2c_client(dev); 1537 struct w83792d_data *data = i2c_get_clientdata(client); 1538 int i, j; 1539 u8 reg_array_tmp[4], reg_tmp; 1540 1541 mutex_lock(&data->update_lock); 1542 1543 if (time_after 1544 (jiffies - data->last_updated, (unsigned long) (HZ * 3)) 1545 || time_before(jiffies, data->last_updated) || !data->valid) { 1546 dev_dbg(dev, "Starting device update\n"); 1547 1548 /* Update the voltages measured value and limits */ 1549 for (i = 0; i < 9; i++) { 1550 data->in[i] = w83792d_read_value(client, 1551 W83792D_REG_IN[i]); 1552 data->in_max[i] = w83792d_read_value(client, 1553 W83792D_REG_IN_MAX[i]); 1554 data->in_min[i] = w83792d_read_value(client, 1555 W83792D_REG_IN_MIN[i]); 1556 } 1557 data->low_bits = w83792d_read_value(client, 1558 W83792D_REG_LOW_BITS1) + 1559 (w83792d_read_value(client, 1560 W83792D_REG_LOW_BITS2) << 8); 1561 for (i = 0; i < 7; i++) { 1562 /* Update the Fan measured value and limits */ 1563 data->fan[i] = w83792d_read_value(client, 1564 W83792D_REG_FAN[i]); 1565 data->fan_min[i] = w83792d_read_value(client, 1566 W83792D_REG_FAN_MIN[i]); 1567 /* Update the PWM/DC Value and PWM/DC flag */ 1568 data->pwm[i] = w83792d_read_value(client, 1569 W83792D_REG_PWM[i]); 1570 } 1571 1572 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG); 1573 data->pwmenable[0] = reg_tmp & 0x03; 1574 data->pwmenable[1] = (reg_tmp>>2) & 0x03; 1575 data->pwmenable[2] = (reg_tmp>>4) & 0x03; 1576 1577 for (i = 0; i < 3; i++) { 1578 data->temp1[i] = w83792d_read_value(client, 1579 W83792D_REG_TEMP1[i]); 1580 } 1581 for (i = 0; i < 2; i++) { 1582 for (j = 0; j < 6; j++) { 1583 data->temp_add[i][j] = w83792d_read_value( 1584 client,W83792D_REG_TEMP_ADD[i][j]); 1585 } 1586 } 1587 1588 /* Update the Fan Divisor */ 1589 for (i = 0; i < 4; i++) { 1590 reg_array_tmp[i] = w83792d_read_value(client, 1591 W83792D_REG_FAN_DIV[i]); 1592 } 1593 data->fan_div[0] = reg_array_tmp[0] & 0x07; 1594 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07; 1595 data->fan_div[2] = reg_array_tmp[1] & 0x07; 1596 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07; 1597 data->fan_div[4] = reg_array_tmp[2] & 0x07; 1598 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07; 1599 data->fan_div[6] = reg_array_tmp[3] & 0x07; 1600 1601 /* Update the realtime status */ 1602 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) + 1603 (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) + 1604 (w83792d_read_value(client, W83792D_REG_ALARM3) << 16); 1605 1606 /* Update CaseOpen status and it's CLR_CHS. */ 1607 data->chassis = (w83792d_read_value(client, 1608 W83792D_REG_CHASSIS) >> 5) & 0x01; 1609 data->chassis_clear = (w83792d_read_value(client, 1610 W83792D_REG_CHASSIS_CLR) >> 7) & 0x01; 1611 1612 /* Update Thermal Cruise/Smart Fan I target value */ 1613 for (i = 0; i < 3; i++) { 1614 data->thermal_cruise[i] = 1615 w83792d_read_value(client, 1616 W83792D_REG_THERMAL[i]) & 0x7f; 1617 } 1618 1619 /* Update Smart Fan I/II tolerance */ 1620 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]); 1621 data->tolerance[0] = reg_tmp & 0x0f; 1622 data->tolerance[1] = (reg_tmp >> 4) & 0x0f; 1623 data->tolerance[2] = w83792d_read_value(client, 1624 W83792D_REG_TOLERANCE[2]) & 0x0f; 1625 1626 /* Update Smart Fan II temperature points */ 1627 for (i = 0; i < 3; i++) { 1628 for (j = 0; j < 4; j++) { 1629 data->sf2_points[i][j] = w83792d_read_value( 1630 client,W83792D_REG_POINTS[i][j]) & 0x7f; 1631 } 1632 } 1633 1634 /* Update Smart Fan II duty cycle levels */ 1635 for (i = 0; i < 3; i++) { 1636 reg_tmp = w83792d_read_value(client, 1637 W83792D_REG_LEVELS[i][0]); 1638 data->sf2_levels[i][0] = reg_tmp & 0x0f; 1639 data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f; 1640 reg_tmp = w83792d_read_value(client, 1641 W83792D_REG_LEVELS[i][2]); 1642 data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f; 1643 data->sf2_levels[i][3] = reg_tmp & 0x0f; 1644 } 1645 1646 data->last_updated = jiffies; 1647 data->valid = 1; 1648 } 1649 1650 mutex_unlock(&data->update_lock); 1651 1652 #ifdef DEBUG 1653 w83792d_print_debug(data, dev); 1654 #endif 1655 1656 return data; 1657 } 1658 1659 #ifdef DEBUG 1660 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev) 1661 { 1662 int i=0, j=0; 1663 dev_dbg(dev, "==========The following is the debug message...========\n"); 1664 dev_dbg(dev, "9 set of Voltages: =====>\n"); 1665 for (i=0; i<9; i++) { 1666 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]); 1667 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]); 1668 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]); 1669 } 1670 dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff); 1671 dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8); 1672 dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n"); 1673 for (i=0; i<7; i++) { 1674 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]); 1675 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]); 1676 dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]); 1677 } 1678 dev_dbg(dev, "3 set of Temperatures: =====>\n"); 1679 for (i=0; i<3; i++) { 1680 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]); 1681 } 1682 1683 for (i=0; i<2; i++) { 1684 for (j=0; j<6; j++) { 1685 dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j, 1686 data->temp_add[i][j]); 1687 } 1688 } 1689 1690 for (i=0; i<7; i++) { 1691 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]); 1692 } 1693 dev_dbg(dev, "==========End of the debug message...==================\n"); 1694 dev_dbg(dev, "\n"); 1695 } 1696 #endif 1697 1698 static int __init 1699 sensors_w83792d_init(void) 1700 { 1701 return i2c_add_driver(&w83792d_driver); 1702 } 1703 1704 static void __exit 1705 sensors_w83792d_exit(void) 1706 { 1707 i2c_del_driver(&w83792d_driver); 1708 } 1709 1710 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>"); 1711 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6"); 1712 MODULE_LICENSE("GPL"); 1713 1714 module_init(sensors_w83792d_init); 1715 module_exit(sensors_w83792d_exit); 1716 1717