1/* 2 adm1026.c - Part of lm_sensors, Linux kernel modules for hardware 3 monitoring 4 Copyright (C) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com> 5 Copyright (C) 2004 Justin Thiessen <jthiessen@penguincomputing.com> 6 7 Chip details at: 8 9 <http://www.analog.com/UploadedFiles/Data_Sheets/779263102ADM1026_a.pdf> 10 11 This program is free software; you can redistribute it and/or modify 12 it under the terms of the GNU General Public License as published by 13 the Free Software Foundation; either version 2 of the License, or 14 (at your option) any later version. 15 16 This program is distributed in the hope that it will be useful, 17 but WITHOUT ANY WARRANTY; without even the implied warranty of 18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 GNU General Public License for more details. 20 21 You should have received a copy of the GNU General Public License 22 along with this program; if not, write to the Free Software 23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 24*/ 25 26#include <linux/module.h> 27#include <linux/init.h> 28#include <linux/slab.h> 29#include <linux/jiffies.h> 30#include <linux/i2c.h> 31#include <linux/hwmon.h> 32#include <linux/hwmon-sysfs.h> 33#include <linux/hwmon-vid.h> 34#include <linux/err.h> 35#include <linux/mutex.h> 36 37/* Addresses to scan */ 38static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; 39 40static int gpio_input[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, 41 -1, -1, -1, -1, -1, -1, -1, -1 }; 42static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, 43 -1, -1, -1, -1, -1, -1, -1, -1 }; 44static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, 45 -1, -1, -1, -1, -1, -1, -1, -1 }; 46static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, 47 -1, -1, -1, -1, -1, -1, -1, -1 }; 48static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 }; 49module_param_array(gpio_input, int, NULL, 0); 50MODULE_PARM_DESC(gpio_input, "List of GPIO pins (0-16) to program as inputs"); 51module_param_array(gpio_output, int, NULL, 0); 52MODULE_PARM_DESC(gpio_output, "List of GPIO pins (0-16) to program as " 53 "outputs"); 54module_param_array(gpio_inverted, int, NULL, 0); 55MODULE_PARM_DESC(gpio_inverted, "List of GPIO pins (0-16) to program as " 56 "inverted"); 57module_param_array(gpio_normal, int, NULL, 0); 58MODULE_PARM_DESC(gpio_normal, "List of GPIO pins (0-16) to program as " 59 "normal/non-inverted"); 60module_param_array(gpio_fan, int, NULL, 0); 61MODULE_PARM_DESC(gpio_fan, "List of GPIO pins (0-7) to program as fan tachs"); 62 63/* Many ADM1026 constants specified below */ 64 65/* The ADM1026 registers */ 66#define ADM1026_REG_CONFIG1 0x00 67#define CFG1_MONITOR 0x01 68#define CFG1_INT_ENABLE 0x02 69#define CFG1_INT_CLEAR 0x04 70#define CFG1_AIN8_9 0x08 71#define CFG1_THERM_HOT 0x10 72#define CFG1_DAC_AFC 0x20 73#define CFG1_PWM_AFC 0x40 74#define CFG1_RESET 0x80 75 76#define ADM1026_REG_CONFIG2 0x01 77/* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */ 78 79#define ADM1026_REG_CONFIG3 0x07 80#define CFG3_GPIO16_ENABLE 0x01 81#define CFG3_CI_CLEAR 0x02 82#define CFG3_VREF_250 0x04 83#define CFG3_GPIO16_DIR 0x40 84#define CFG3_GPIO16_POL 0x80 85 86#define ADM1026_REG_E2CONFIG 0x13 87#define E2CFG_READ 0x01 88#define E2CFG_WRITE 0x02 89#define E2CFG_ERASE 0x04 90#define E2CFG_ROM 0x08 91#define E2CFG_CLK_EXT 0x80 92 93/* There are 10 general analog inputs and 7 dedicated inputs 94 * They are: 95 * 0 - 9 = AIN0 - AIN9 96 * 10 = Vbat 97 * 11 = 3.3V Standby 98 * 12 = 3.3V Main 99 * 13 = +5V 100 * 14 = Vccp (CPU core voltage) 101 * 15 = +12V 102 * 16 = -12V 103 */ 104static u16 ADM1026_REG_IN[] = { 105 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 106 0x36, 0x37, 0x27, 0x29, 0x26, 0x2a, 107 0x2b, 0x2c, 0x2d, 0x2e, 0x2f 108 }; 109static u16 ADM1026_REG_IN_MIN[] = { 110 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 111 0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a, 112 0x4b, 0x4c, 0x4d, 0x4e, 0x4f 113 }; 114static u16 ADM1026_REG_IN_MAX[] = { 115 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 116 0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42, 117 0x43, 0x44, 0x45, 0x46, 0x47 118 }; 119 120/* Temperatures are: 121 * 0 - Internal 122 * 1 - External 1 123 * 2 - External 2 124 */ 125static u16 ADM1026_REG_TEMP[] = { 0x1f, 0x28, 0x29 }; 126static u16 ADM1026_REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 }; 127static u16 ADM1026_REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 }; 128static u16 ADM1026_REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 }; 129static u16 ADM1026_REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f }; 130static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f }; 131 132#define ADM1026_REG_FAN(nr) (0x38 + (nr)) 133#define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr)) 134#define ADM1026_REG_FAN_DIV_0_3 0x02 135#define ADM1026_REG_FAN_DIV_4_7 0x03 136 137#define ADM1026_REG_DAC 0x04 138#define ADM1026_REG_PWM 0x05 139 140#define ADM1026_REG_GPIO_CFG_0_3 0x08 141#define ADM1026_REG_GPIO_CFG_4_7 0x09 142#define ADM1026_REG_GPIO_CFG_8_11 0x0a 143#define ADM1026_REG_GPIO_CFG_12_15 0x0b 144/* CFG_16 in REG_CFG3 */ 145#define ADM1026_REG_GPIO_STATUS_0_7 0x24 146#define ADM1026_REG_GPIO_STATUS_8_15 0x25 147/* STATUS_16 in REG_STATUS4 */ 148#define ADM1026_REG_GPIO_MASK_0_7 0x1c 149#define ADM1026_REG_GPIO_MASK_8_15 0x1d 150/* MASK_16 in REG_MASK4 */ 151 152#define ADM1026_REG_COMPANY 0x16 153#define ADM1026_REG_VERSTEP 0x17 154/* These are the recognized values for the above regs */ 155#define ADM1026_COMPANY_ANALOG_DEV 0x41 156#define ADM1026_VERSTEP_GENERIC 0x40 157#define ADM1026_VERSTEP_ADM1026 0x44 158 159#define ADM1026_REG_MASK1 0x18 160#define ADM1026_REG_MASK2 0x19 161#define ADM1026_REG_MASK3 0x1a 162#define ADM1026_REG_MASK4 0x1b 163 164#define ADM1026_REG_STATUS1 0x20 165#define ADM1026_REG_STATUS2 0x21 166#define ADM1026_REG_STATUS3 0x22 167#define ADM1026_REG_STATUS4 0x23 168 169#define ADM1026_FAN_ACTIVATION_TEMP_HYST -6 170#define ADM1026_FAN_CONTROL_TEMP_RANGE 20 171#define ADM1026_PWM_MAX 255 172 173/* Conversions. Rounding and limit checking is only done on the TO_REG 174 * variants. Note that you should be a bit careful with which arguments 175 * these macros are called: arguments may be evaluated more than once. 176 */ 177 178/* IN are scaled acording to built-in resistors. These are the 179 * voltages corresponding to 3/4 of full scale (192 or 0xc0) 180 * NOTE: The -12V input needs an additional factor to account 181 * for the Vref pullup resistor. 182 * NEG12_OFFSET = SCALE * Vref / V-192 - Vref 183 * = 13875 * 2.50 / 1.875 - 2500 184 * = 16000 185 * 186 * The values in this table are based on Table II, page 15 of the 187 * datasheet. 188 */ 189static int adm1026_scaling[] = { /* .001 Volts */ 190 2250, 2250, 2250, 2250, 2250, 2250, 191 1875, 1875, 1875, 1875, 3000, 3330, 192 3330, 4995, 2250, 12000, 13875 193 }; 194#define NEG12_OFFSET 16000 195#define SCALE(val, from, to) (((val)*(to) + ((from)/2))/(from)) 196#define INS_TO_REG(n, val) (SENSORS_LIMIT(SCALE(val, adm1026_scaling[n], 192),\ 197 0, 255)) 198#define INS_FROM_REG(n, val) (SCALE(val, 192, adm1026_scaling[n])) 199 200/* FAN speed is measured using 22.5kHz clock and counts for 2 pulses 201 * and we assume a 2 pulse-per-rev fan tach signal 202 * 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000 203 */ 204#define FAN_TO_REG(val, div) ((val) <= 0 ? 0xff : \ 205 SENSORS_LIMIT(1350000/((val)*(div)), 1, 254)) 206#define FAN_FROM_REG(val, div) ((val) == 0 ? -1:(val) == 0xff ? 0 : \ 207 1350000/((val)*(div))) 208#define DIV_FROM_REG(val) (1<<(val)) 209#define DIV_TO_REG(val) ((val) >= 8 ? 3 : (val) >= 4 ? 2 : (val) >= 2 ? 1 : 0) 210 211/* Temperature is reported in 1 degC increments */ 212#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\ 213 -127, 127)) 214#define TEMP_FROM_REG(val) ((val) * 1000) 215#define OFFSET_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\ 216 -127, 127)) 217#define OFFSET_FROM_REG(val) ((val) * 1000) 218 219#define PWM_TO_REG(val) (SENSORS_LIMIT(val, 0, 255)) 220#define PWM_FROM_REG(val) (val) 221 222#define PWM_MIN_TO_REG(val) ((val) & 0xf0) 223#define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4)) 224 225/* Analog output is a voltage, and scaled to millivolts. The datasheet 226 * indicates that the DAC could be used to drive the fans, but in our 227 * example board (Arima HDAMA) it isn't connected to the fans at all. 228 */ 229#define DAC_TO_REG(val) (SENSORS_LIMIT(((((val)*255)+500)/2500), 0, 255)) 230#define DAC_FROM_REG(val) (((val)*2500)/255) 231 232/* Chip sampling rates 233 * 234 * Some sensors are not updated more frequently than once per second 235 * so it doesn't make sense to read them more often than that. 236 * We cache the results and return the saved data if the driver 237 * is called again before a second has elapsed. 238 * 239 * Also, there is significant configuration data for this chip 240 * So, we keep the config data up to date in the cache 241 * when it is written and only sample it once every 5 *minutes* 242 */ 243#define ADM1026_DATA_INTERVAL (1 * HZ) 244#define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ) 245 246/* We allow for multiple chips in a single system. 247 * 248 * For each registered ADM1026, we need to keep state information 249 * at client->data. The adm1026_data structure is dynamically 250 * allocated, when a new client structure is allocated. */ 251 252struct pwm_data { 253 u8 pwm; 254 u8 enable; 255 u8 auto_pwm_min; 256}; 257 258struct adm1026_data { 259 struct device *hwmon_dev; 260 261 struct mutex update_lock; 262 int valid; /* !=0 if following fields are valid */ 263 unsigned long last_reading; /* In jiffies */ 264 unsigned long last_config; /* In jiffies */ 265 266 u8 in[17]; /* Register value */ 267 u8 in_max[17]; /* Register value */ 268 u8 in_min[17]; /* Register value */ 269 s8 temp[3]; /* Register value */ 270 s8 temp_min[3]; /* Register value */ 271 s8 temp_max[3]; /* Register value */ 272 s8 temp_tmin[3]; /* Register value */ 273 s8 temp_crit[3]; /* Register value */ 274 s8 temp_offset[3]; /* Register value */ 275 u8 fan[8]; /* Register value */ 276 u8 fan_min[8]; /* Register value */ 277 u8 fan_div[8]; /* Decoded value */ 278 struct pwm_data pwm1; /* Pwm control values */ 279 u8 vrm; /* VRM version */ 280 u8 analog_out; /* Register value (DAC) */ 281 long alarms; /* Register encoding, combined */ 282 long alarm_mask; /* Register encoding, combined */ 283 long gpio; /* Register encoding, combined */ 284 long gpio_mask; /* Register encoding, combined */ 285 u8 gpio_config[17]; /* Decoded value */ 286 u8 config1; /* Register value */ 287 u8 config2; /* Register value */ 288 u8 config3; /* Register value */ 289}; 290 291static int adm1026_probe(struct i2c_client *client, 292 const struct i2c_device_id *id); 293static int adm1026_detect(struct i2c_client *client, 294 struct i2c_board_info *info); 295static int adm1026_remove(struct i2c_client *client); 296static int adm1026_read_value(struct i2c_client *client, u8 reg); 297static int adm1026_write_value(struct i2c_client *client, u8 reg, int value); 298static void adm1026_print_gpio(struct i2c_client *client); 299static void adm1026_fixup_gpio(struct i2c_client *client); 300static struct adm1026_data *adm1026_update_device(struct device *dev); 301static void adm1026_init_client(struct i2c_client *client); 302 303 304static const struct i2c_device_id adm1026_id[] = { 305 { "adm1026", 0 }, 306 { } 307}; 308MODULE_DEVICE_TABLE(i2c, adm1026_id); 309 310static struct i2c_driver adm1026_driver = { 311 .class = I2C_CLASS_HWMON, 312 .driver = { 313 .name = "adm1026", 314 }, 315 .probe = adm1026_probe, 316 .remove = adm1026_remove, 317 .id_table = adm1026_id, 318 .detect = adm1026_detect, 319 .address_list = normal_i2c, 320}; 321 322static int adm1026_read_value(struct i2c_client *client, u8 reg) 323{ 324 int res; 325 326 if (reg < 0x80) { 327 /* "RAM" locations */ 328 res = i2c_smbus_read_byte_data(client, reg) & 0xff; 329 } else { 330 /* EEPROM, do nothing */ 331 res = 0; 332 } 333 return res; 334} 335 336static int adm1026_write_value(struct i2c_client *client, u8 reg, int value) 337{ 338 int res; 339 340 if (reg < 0x80) { 341 /* "RAM" locations */ 342 res = i2c_smbus_write_byte_data(client, reg, value); 343 } else { 344 /* EEPROM, do nothing */ 345 res = 0; 346 } 347 return res; 348} 349 350static void adm1026_init_client(struct i2c_client *client) 351{ 352 int value, i; 353 struct adm1026_data *data = i2c_get_clientdata(client); 354 355 dev_dbg(&client->dev, "Initializing device\n"); 356 /* Read chip config */ 357 data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1); 358 data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2); 359 data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3); 360 361 /* Inform user of chip config */ 362 dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n", 363 data->config1); 364 if ((data->config1 & CFG1_MONITOR) == 0) { 365 dev_dbg(&client->dev, "Monitoring not currently " 366 "enabled.\n"); 367 } 368 if (data->config1 & CFG1_INT_ENABLE) { 369 dev_dbg(&client->dev, "SMBALERT interrupts are " 370 "enabled.\n"); 371 } 372 if (data->config1 & CFG1_AIN8_9) { 373 dev_dbg(&client->dev, "in8 and in9 enabled. " 374 "temp3 disabled.\n"); 375 } else { 376 dev_dbg(&client->dev, "temp3 enabled. in8 and " 377 "in9 disabled.\n"); 378 } 379 if (data->config1 & CFG1_THERM_HOT) { 380 dev_dbg(&client->dev, "Automatic THERM, PWM, " 381 "and temp limits enabled.\n"); 382 } 383 384 if (data->config3 & CFG3_GPIO16_ENABLE) { 385 dev_dbg(&client->dev, "GPIO16 enabled. THERM " 386 "pin disabled.\n"); 387 } else { 388 dev_dbg(&client->dev, "THERM pin enabled. " 389 "GPIO16 disabled.\n"); 390 } 391 if (data->config3 & CFG3_VREF_250) { 392 dev_dbg(&client->dev, "Vref is 2.50 Volts.\n"); 393 } else { 394 dev_dbg(&client->dev, "Vref is 1.82 Volts.\n"); 395 } 396 /* Read and pick apart the existing GPIO configuration */ 397 value = 0; 398 for (i = 0;i <= 15;++i) { 399 if ((i & 0x03) == 0) { 400 value = adm1026_read_value(client, 401 ADM1026_REG_GPIO_CFG_0_3 + i/4); 402 } 403 data->gpio_config[i] = value & 0x03; 404 value >>= 2; 405 } 406 data->gpio_config[16] = (data->config3 >> 6) & 0x03; 407 408 /* ... and then print it */ 409 adm1026_print_gpio(client); 410 411 /* If the user asks us to reprogram the GPIO config, then 412 * do it now. 413 */ 414 if (gpio_input[0] != -1 || gpio_output[0] != -1 415 || gpio_inverted[0] != -1 || gpio_normal[0] != -1 416 || gpio_fan[0] != -1) { 417 adm1026_fixup_gpio(client); 418 } 419 420 /* WE INTENTIONALLY make no changes to the limits, 421 * offsets, pwms, fans and zones. If they were 422 * configured, we don't want to mess with them. 423 * If they weren't, the default is 100% PWM, no 424 * control and will suffice until 'sensors -s' 425 * can be run by the user. We DO set the default 426 * value for pwm1.auto_pwm_min to its maximum 427 * so that enabling automatic pwm fan control 428 * without first setting a value for pwm1.auto_pwm_min 429 * will not result in potentially dangerous fan speed decrease. 430 */ 431 data->pwm1.auto_pwm_min=255; 432 /* Start monitoring */ 433 value = adm1026_read_value(client, ADM1026_REG_CONFIG1); 434 /* Set MONITOR, clear interrupt acknowledge and s/w reset */ 435 value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET); 436 dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value); 437 data->config1 = value; 438 adm1026_write_value(client, ADM1026_REG_CONFIG1, value); 439 440 /* initialize fan_div[] to hardware defaults */ 441 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) | 442 (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8); 443 for (i = 0;i <= 7;++i) { 444 data->fan_div[i] = DIV_FROM_REG(value & 0x03); 445 value >>= 2; 446 } 447} 448 449static void adm1026_print_gpio(struct i2c_client *client) 450{ 451 struct adm1026_data *data = i2c_get_clientdata(client); 452 int i; 453 454 dev_dbg(&client->dev, "GPIO config is:\n"); 455 for (i = 0;i <= 7;++i) { 456 if (data->config2 & (1 << i)) { 457 dev_dbg(&client->dev, "\t%sGP%s%d\n", 458 data->gpio_config[i] & 0x02 ? "" : "!", 459 data->gpio_config[i] & 0x01 ? "OUT" : "IN", 460 i); 461 } else { 462 dev_dbg(&client->dev, "\tFAN%d\n", i); 463 } 464 } 465 for (i = 8;i <= 15;++i) { 466 dev_dbg(&client->dev, "\t%sGP%s%d\n", 467 data->gpio_config[i] & 0x02 ? "" : "!", 468 data->gpio_config[i] & 0x01 ? "OUT" : "IN", 469 i); 470 } 471 if (data->config3 & CFG3_GPIO16_ENABLE) { 472 dev_dbg(&client->dev, "\t%sGP%s16\n", 473 data->gpio_config[16] & 0x02 ? "" : "!", 474 data->gpio_config[16] & 0x01 ? "OUT" : "IN"); 475 } else { 476 /* GPIO16 is THERM */ 477 dev_dbg(&client->dev, "\tTHERM\n"); 478 } 479} 480 481static void adm1026_fixup_gpio(struct i2c_client *client) 482{ 483 struct adm1026_data *data = i2c_get_clientdata(client); 484 int i; 485 int value; 486 487 /* Make the changes requested. */ 488 489 /* Make outputs */ 490 for (i = 0;i <= 16;++i) { 491 if (gpio_output[i] >= 0 && gpio_output[i] <= 16) { 492 data->gpio_config[gpio_output[i]] |= 0x01; 493 } 494 /* if GPIO0-7 is output, it isn't a FAN tach */ 495 if (gpio_output[i] >= 0 && gpio_output[i] <= 7) { 496 data->config2 |= 1 << gpio_output[i]; 497 } 498 } 499 500 /* Input overrides output */ 501 for (i = 0;i <= 16;++i) { 502 if (gpio_input[i] >= 0 && gpio_input[i] <= 16) { 503 data->gpio_config[gpio_input[i]] &= ~ 0x01; 504 } 505 /* if GPIO0-7 is input, it isn't a FAN tach */ 506 if (gpio_input[i] >= 0 && gpio_input[i] <= 7) { 507 data->config2 |= 1 << gpio_input[i]; 508 } 509 } 510 511 /* Inverted */ 512 for (i = 0;i <= 16;++i) { 513 if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) { 514 data->gpio_config[gpio_inverted[i]] &= ~ 0x02; 515 } 516 } 517 518 /* Normal overrides inverted */ 519 for (i = 0;i <= 16;++i) { 520 if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) { 521 data->gpio_config[gpio_normal[i]] |= 0x02; 522 } 523 } 524 525 /* Fan overrides input and output */ 526 for (i = 0;i <= 7;++i) { 527 if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) { 528 data->config2 &= ~(1 << gpio_fan[i]); 529 } 530 } 531 532 /* Write new configs to registers */ 533 adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2); 534 data->config3 = (data->config3 & 0x3f) 535 | ((data->gpio_config[16] & 0x03) << 6); 536 adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3); 537 for (i = 15, value = 0;i >= 0;--i) { 538 value <<= 2; 539 value |= data->gpio_config[i] & 0x03; 540 if ((i & 0x03) == 0) { 541 adm1026_write_value(client, 542 ADM1026_REG_GPIO_CFG_0_3 + i/4, 543 value); 544 value = 0; 545 } 546 } 547 548 /* Print the new config */ 549 adm1026_print_gpio(client); 550} 551 552 553static struct adm1026_data *adm1026_update_device(struct device *dev) 554{ 555 struct i2c_client *client = to_i2c_client(dev); 556 struct adm1026_data *data = i2c_get_clientdata(client); 557 int i; 558 long value, alarms, gpio; 559 560 mutex_lock(&data->update_lock); 561 if (!data->valid 562 || time_after(jiffies, data->last_reading + ADM1026_DATA_INTERVAL)) { 563 /* Things that change quickly */ 564 dev_dbg(&client->dev, "Reading sensor values\n"); 565 for (i = 0;i <= 16;++i) { 566 data->in[i] = 567 adm1026_read_value(client, ADM1026_REG_IN[i]); 568 } 569 570 for (i = 0;i <= 7;++i) { 571 data->fan[i] = 572 adm1026_read_value(client, ADM1026_REG_FAN(i)); 573 } 574 575 for (i = 0;i <= 2;++i) { 576 /* NOTE: temp[] is s8 and we assume 2's complement 577 * "conversion" in the assignment */ 578 data->temp[i] = 579 adm1026_read_value(client, ADM1026_REG_TEMP[i]); 580 } 581 582 data->pwm1.pwm = adm1026_read_value(client, 583 ADM1026_REG_PWM); 584 data->analog_out = adm1026_read_value(client, 585 ADM1026_REG_DAC); 586 /* GPIO16 is MSbit of alarms, move it to gpio */ 587 alarms = adm1026_read_value(client, ADM1026_REG_STATUS4); 588 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */ 589 alarms &= 0x7f; 590 alarms <<= 8; 591 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3); 592 alarms <<= 8; 593 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2); 594 alarms <<= 8; 595 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1); 596 data->alarms = alarms; 597 598 /* Read the GPIO values */ 599 gpio |= adm1026_read_value(client, 600 ADM1026_REG_GPIO_STATUS_8_15); 601 gpio <<= 8; 602 gpio |= adm1026_read_value(client, 603 ADM1026_REG_GPIO_STATUS_0_7); 604 data->gpio = gpio; 605 606 data->last_reading = jiffies; 607 }; /* last_reading */ 608 609 if (!data->valid || 610 time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) { 611 /* Things that don't change often */ 612 dev_dbg(&client->dev, "Reading config values\n"); 613 for (i = 0;i <= 16;++i) { 614 data->in_min[i] = adm1026_read_value(client, 615 ADM1026_REG_IN_MIN[i]); 616 data->in_max[i] = adm1026_read_value(client, 617 ADM1026_REG_IN_MAX[i]); 618 } 619 620 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) 621 | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) 622 << 8); 623 for (i = 0;i <= 7;++i) { 624 data->fan_min[i] = adm1026_read_value(client, 625 ADM1026_REG_FAN_MIN(i)); 626 data->fan_div[i] = DIV_FROM_REG(value & 0x03); 627 value >>= 2; 628 } 629 630 for (i = 0; i <= 2; ++i) { 631 /* NOTE: temp_xxx[] are s8 and we assume 2's 632 * complement "conversion" in the assignment 633 */ 634 data->temp_min[i] = adm1026_read_value(client, 635 ADM1026_REG_TEMP_MIN[i]); 636 data->temp_max[i] = adm1026_read_value(client, 637 ADM1026_REG_TEMP_MAX[i]); 638 data->temp_tmin[i] = adm1026_read_value(client, 639 ADM1026_REG_TEMP_TMIN[i]); 640 data->temp_crit[i] = adm1026_read_value(client, 641 ADM1026_REG_TEMP_THERM[i]); 642 data->temp_offset[i] = adm1026_read_value(client, 643 ADM1026_REG_TEMP_OFFSET[i]); 644 } 645 646 /* Read the STATUS/alarm masks */ 647 alarms = adm1026_read_value(client, ADM1026_REG_MASK4); 648 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */ 649 alarms = (alarms & 0x7f) << 8; 650 alarms |= adm1026_read_value(client, ADM1026_REG_MASK3); 651 alarms <<= 8; 652 alarms |= adm1026_read_value(client, ADM1026_REG_MASK2); 653 alarms <<= 8; 654 alarms |= adm1026_read_value(client, ADM1026_REG_MASK1); 655 data->alarm_mask = alarms; 656 657 /* Read the GPIO values */ 658 gpio |= adm1026_read_value(client, 659 ADM1026_REG_GPIO_MASK_8_15); 660 gpio <<= 8; 661 gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7); 662 data->gpio_mask = gpio; 663 664 /* Read various values from CONFIG1 */ 665 data->config1 = adm1026_read_value(client, 666 ADM1026_REG_CONFIG1); 667 if (data->config1 & CFG1_PWM_AFC) { 668 data->pwm1.enable = 2; 669 data->pwm1.auto_pwm_min = 670 PWM_MIN_FROM_REG(data->pwm1.pwm); 671 } 672 /* Read the GPIO config */ 673 data->config2 = adm1026_read_value(client, 674 ADM1026_REG_CONFIG2); 675 data->config3 = adm1026_read_value(client, 676 ADM1026_REG_CONFIG3); 677 data->gpio_config[16] = (data->config3 >> 6) & 0x03; 678 679 value = 0; 680 for (i = 0;i <= 15;++i) { 681 if ((i & 0x03) == 0) { 682 value = adm1026_read_value(client, 683 ADM1026_REG_GPIO_CFG_0_3 + i/4); 684 } 685 data->gpio_config[i] = value & 0x03; 686 value >>= 2; 687 } 688 689 data->last_config = jiffies; 690 }; /* last_config */ 691 692 data->valid = 1; 693 mutex_unlock(&data->update_lock); 694 return data; 695} 696 697static ssize_t show_in(struct device *dev, struct device_attribute *attr, 698 char *buf) 699{ 700 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 701 int nr = sensor_attr->index; 702 struct adm1026_data *data = adm1026_update_device(dev); 703 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in[nr])); 704} 705static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, 706 char *buf) 707{ 708 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 709 int nr = sensor_attr->index; 710 struct adm1026_data *data = adm1026_update_device(dev); 711 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr])); 712} 713static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, 714 const char *buf, size_t count) 715{ 716 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 717 int nr = sensor_attr->index; 718 struct i2c_client *client = to_i2c_client(dev); 719 struct adm1026_data *data = i2c_get_clientdata(client); 720 int val = simple_strtol(buf, NULL, 10); 721 722 mutex_lock(&data->update_lock); 723 data->in_min[nr] = INS_TO_REG(nr, val); 724 adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]); 725 mutex_unlock(&data->update_lock); 726 return count; 727} 728static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, 729 char *buf) 730{ 731 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 732 int nr = sensor_attr->index; 733 struct adm1026_data *data = adm1026_update_device(dev); 734 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr])); 735} 736static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, 737 const char *buf, size_t count) 738{ 739 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 740 int nr = sensor_attr->index; 741 struct i2c_client *client = to_i2c_client(dev); 742 struct adm1026_data *data = i2c_get_clientdata(client); 743 int val = simple_strtol(buf, NULL, 10); 744 745 mutex_lock(&data->update_lock); 746 data->in_max[nr] = INS_TO_REG(nr, val); 747 adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]); 748 mutex_unlock(&data->update_lock); 749 return count; 750} 751 752#define in_reg(offset) \ 753static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in, \ 754 NULL, offset); \ 755static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ 756 show_in_min, set_in_min, offset); \ 757static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ 758 show_in_max, set_in_max, offset); 759 760 761in_reg(0); 762in_reg(1); 763in_reg(2); 764in_reg(3); 765in_reg(4); 766in_reg(5); 767in_reg(6); 768in_reg(7); 769in_reg(8); 770in_reg(9); 771in_reg(10); 772in_reg(11); 773in_reg(12); 774in_reg(13); 775in_reg(14); 776in_reg(15); 777 778static ssize_t show_in16(struct device *dev, struct device_attribute *attr, char *buf) 779{ 780 struct adm1026_data *data = adm1026_update_device(dev); 781 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in[16]) - 782 NEG12_OFFSET); 783} 784static ssize_t show_in16_min(struct device *dev, struct device_attribute *attr, char *buf) 785{ 786 struct adm1026_data *data = adm1026_update_device(dev); 787 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_min[16]) 788 - NEG12_OFFSET); 789} 790static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 791{ 792 struct i2c_client *client = to_i2c_client(dev); 793 struct adm1026_data *data = i2c_get_clientdata(client); 794 int val = simple_strtol(buf, NULL, 10); 795 796 mutex_lock(&data->update_lock); 797 data->in_min[16] = INS_TO_REG(16, val + NEG12_OFFSET); 798 adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]); 799 mutex_unlock(&data->update_lock); 800 return count; 801} 802static ssize_t show_in16_max(struct device *dev, struct device_attribute *attr, char *buf) 803{ 804 struct adm1026_data *data = adm1026_update_device(dev); 805 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_max[16]) 806 - NEG12_OFFSET); 807} 808static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 809{ 810 struct i2c_client *client = to_i2c_client(dev); 811 struct adm1026_data *data = i2c_get_clientdata(client); 812 int val = simple_strtol(buf, NULL, 10); 813 814 mutex_lock(&data->update_lock); 815 data->in_max[16] = INS_TO_REG(16, val+NEG12_OFFSET); 816 adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]); 817 mutex_unlock(&data->update_lock); 818 return count; 819} 820 821static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in16, NULL, 16); 822static SENSOR_DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min, set_in16_min, 16); 823static SENSOR_DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max, set_in16_max, 16); 824 825 826 827 828/* Now add fan read/write functions */ 829 830static ssize_t show_fan(struct device *dev, struct device_attribute *attr, 831 char *buf) 832{ 833 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 834 int nr = sensor_attr->index; 835 struct adm1026_data *data = adm1026_update_device(dev); 836 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], 837 data->fan_div[nr])); 838} 839static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, 840 char *buf) 841{ 842 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 843 int nr = sensor_attr->index; 844 struct adm1026_data *data = adm1026_update_device(dev); 845 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], 846 data->fan_div[nr])); 847} 848static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, 849 const char *buf, size_t count) 850{ 851 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 852 int nr = sensor_attr->index; 853 struct i2c_client *client = to_i2c_client(dev); 854 struct adm1026_data *data = i2c_get_clientdata(client); 855 int val = simple_strtol(buf, NULL, 10); 856 857 mutex_lock(&data->update_lock); 858 data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]); 859 adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr), 860 data->fan_min[nr]); 861 mutex_unlock(&data->update_lock); 862 return count; 863} 864 865#define fan_offset(offset) \ 866static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan, NULL, \ 867 offset - 1); \ 868static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ 869 show_fan_min, set_fan_min, offset - 1); 870 871fan_offset(1); 872fan_offset(2); 873fan_offset(3); 874fan_offset(4); 875fan_offset(5); 876fan_offset(6); 877fan_offset(7); 878fan_offset(8); 879 880/* Adjust fan_min to account for new fan divisor */ 881static void fixup_fan_min(struct device *dev, int fan, int old_div) 882{ 883 struct i2c_client *client = to_i2c_client(dev); 884 struct adm1026_data *data = i2c_get_clientdata(client); 885 int new_min; 886 int new_div = data->fan_div[fan]; 887 888 /* 0 and 0xff are special. Don't adjust them */ 889 if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff) { 890 return; 891 } 892 893 new_min = data->fan_min[fan] * old_div / new_div; 894 new_min = SENSORS_LIMIT(new_min, 1, 254); 895 data->fan_min[fan] = new_min; 896 adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min); 897} 898 899/* Now add fan_div read/write functions */ 900static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, 901 char *buf) 902{ 903 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 904 int nr = sensor_attr->index; 905 struct adm1026_data *data = adm1026_update_device(dev); 906 return sprintf(buf, "%d\n", data->fan_div[nr]); 907} 908static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, 909 const char *buf, size_t count) 910{ 911 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 912 int nr = sensor_attr->index; 913 struct i2c_client *client = to_i2c_client(dev); 914 struct adm1026_data *data = i2c_get_clientdata(client); 915 int val, orig_div, new_div; 916 917 val = simple_strtol(buf, NULL, 10); 918 new_div = DIV_TO_REG(val); 919 920 mutex_lock(&data->update_lock); 921 orig_div = data->fan_div[nr]; 922 data->fan_div[nr] = DIV_FROM_REG(new_div); 923 924 if (nr < 4) { /* 0 <= nr < 4 */ 925 adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3, 926 (DIV_TO_REG(data->fan_div[0]) << 0) | 927 (DIV_TO_REG(data->fan_div[1]) << 2) | 928 (DIV_TO_REG(data->fan_div[2]) << 4) | 929 (DIV_TO_REG(data->fan_div[3]) << 6)); 930 } else { /* 3 < nr < 8 */ 931 adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7, 932 (DIV_TO_REG(data->fan_div[4]) << 0) | 933 (DIV_TO_REG(data->fan_div[5]) << 2) | 934 (DIV_TO_REG(data->fan_div[6]) << 4) | 935 (DIV_TO_REG(data->fan_div[7]) << 6)); 936 } 937 938 if (data->fan_div[nr] != orig_div) { 939 fixup_fan_min(dev, nr, orig_div); 940 } 941 mutex_unlock(&data->update_lock); 942 return count; 943} 944 945#define fan_offset_div(offset) \ 946static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ 947 show_fan_div, set_fan_div, offset - 1); 948 949fan_offset_div(1); 950fan_offset_div(2); 951fan_offset_div(3); 952fan_offset_div(4); 953fan_offset_div(5); 954fan_offset_div(6); 955fan_offset_div(7); 956fan_offset_div(8); 957 958/* Temps */ 959static ssize_t show_temp(struct device *dev, struct device_attribute *attr, 960 char *buf) 961{ 962 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 963 int nr = sensor_attr->index; 964 struct adm1026_data *data = adm1026_update_device(dev); 965 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); 966} 967static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, 968 char *buf) 969{ 970 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 971 int nr = sensor_attr->index; 972 struct adm1026_data *data = adm1026_update_device(dev); 973 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); 974} 975static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, 976 const char *buf, size_t count) 977{ 978 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 979 int nr = sensor_attr->index; 980 struct i2c_client *client = to_i2c_client(dev); 981 struct adm1026_data *data = i2c_get_clientdata(client); 982 int val = simple_strtol(buf, NULL, 10); 983 984 mutex_lock(&data->update_lock); 985 data->temp_min[nr] = TEMP_TO_REG(val); 986 adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr], 987 data->temp_min[nr]); 988 mutex_unlock(&data->update_lock); 989 return count; 990} 991static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, 992 char *buf) 993{ 994 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 995 int nr = sensor_attr->index; 996 struct adm1026_data *data = adm1026_update_device(dev); 997 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); 998} 999static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, 1000 const char *buf, size_t count) 1001{ 1002 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1003 int nr = sensor_attr->index; 1004 struct i2c_client *client = to_i2c_client(dev); 1005 struct adm1026_data *data = i2c_get_clientdata(client); 1006 int val = simple_strtol(buf, NULL, 10); 1007 1008 mutex_lock(&data->update_lock); 1009 data->temp_max[nr] = TEMP_TO_REG(val); 1010 adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr], 1011 data->temp_max[nr]); 1012 mutex_unlock(&data->update_lock); 1013 return count; 1014} 1015 1016#define temp_reg(offset) \ 1017static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp, \ 1018 NULL, offset - 1); \ 1019static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ 1020 show_temp_min, set_temp_min, offset - 1); \ 1021static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ 1022 show_temp_max, set_temp_max, offset - 1); 1023 1024 1025temp_reg(1); 1026temp_reg(2); 1027temp_reg(3); 1028 1029static ssize_t show_temp_offset(struct device *dev, 1030 struct device_attribute *attr, char *buf) 1031{ 1032 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1033 int nr = sensor_attr->index; 1034 struct adm1026_data *data = adm1026_update_device(dev); 1035 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr])); 1036} 1037static ssize_t set_temp_offset(struct device *dev, 1038 struct device_attribute *attr, const char *buf, 1039 size_t count) 1040{ 1041 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1042 int nr = sensor_attr->index; 1043 struct i2c_client *client = to_i2c_client(dev); 1044 struct adm1026_data *data = i2c_get_clientdata(client); 1045 int val = simple_strtol(buf, NULL, 10); 1046 1047 mutex_lock(&data->update_lock); 1048 data->temp_offset[nr] = TEMP_TO_REG(val); 1049 adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr], 1050 data->temp_offset[nr]); 1051 mutex_unlock(&data->update_lock); 1052 return count; 1053} 1054 1055#define temp_offset_reg(offset) \ 1056static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \ 1057 show_temp_offset, set_temp_offset, offset - 1); 1058 1059temp_offset_reg(1); 1060temp_offset_reg(2); 1061temp_offset_reg(3); 1062 1063static ssize_t show_temp_auto_point1_temp_hyst(struct device *dev, 1064 struct device_attribute *attr, char *buf) 1065{ 1066 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1067 int nr = sensor_attr->index; 1068 struct adm1026_data *data = adm1026_update_device(dev); 1069 return sprintf(buf, "%d\n", TEMP_FROM_REG( 1070 ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr])); 1071} 1072static ssize_t show_temp_auto_point2_temp(struct device *dev, 1073 struct device_attribute *attr, char *buf) 1074{ 1075 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1076 int nr = sensor_attr->index; 1077 struct adm1026_data *data = adm1026_update_device(dev); 1078 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr] + 1079 ADM1026_FAN_CONTROL_TEMP_RANGE)); 1080} 1081static ssize_t show_temp_auto_point1_temp(struct device *dev, 1082 struct device_attribute *attr, char *buf) 1083{ 1084 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1085 int nr = sensor_attr->index; 1086 struct adm1026_data *data = adm1026_update_device(dev); 1087 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr])); 1088} 1089static ssize_t set_temp_auto_point1_temp(struct device *dev, 1090 struct device_attribute *attr, const char *buf, size_t count) 1091{ 1092 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1093 int nr = sensor_attr->index; 1094 struct i2c_client *client = to_i2c_client(dev); 1095 struct adm1026_data *data = i2c_get_clientdata(client); 1096 int val = simple_strtol(buf, NULL, 10); 1097 1098 mutex_lock(&data->update_lock); 1099 data->temp_tmin[nr] = TEMP_TO_REG(val); 1100 adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr], 1101 data->temp_tmin[nr]); 1102 mutex_unlock(&data->update_lock); 1103 return count; 1104} 1105 1106#define temp_auto_point(offset) \ 1107static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp, \ 1108 S_IRUGO | S_IWUSR, show_temp_auto_point1_temp, \ 1109 set_temp_auto_point1_temp, offset - 1); \ 1110static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp_hyst, S_IRUGO,\ 1111 show_temp_auto_point1_temp_hyst, NULL, offset - 1); \ 1112static SENSOR_DEVICE_ATTR(temp##offset##_auto_point2_temp, S_IRUGO, \ 1113 show_temp_auto_point2_temp, NULL, offset - 1); 1114 1115temp_auto_point(1); 1116temp_auto_point(2); 1117temp_auto_point(3); 1118 1119static ssize_t show_temp_crit_enable(struct device *dev, 1120 struct device_attribute *attr, char *buf) 1121{ 1122 struct adm1026_data *data = adm1026_update_device(dev); 1123 return sprintf(buf, "%d\n", (data->config1 & CFG1_THERM_HOT) >> 4); 1124} 1125static ssize_t set_temp_crit_enable(struct device *dev, 1126 struct device_attribute *attr, const char *buf, size_t count) 1127{ 1128 struct i2c_client *client = to_i2c_client(dev); 1129 struct adm1026_data *data = i2c_get_clientdata(client); 1130 int val = simple_strtol(buf, NULL, 10); 1131 1132 if ((val == 1) || (val==0)) { 1133 mutex_lock(&data->update_lock); 1134 data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4); 1135 adm1026_write_value(client, ADM1026_REG_CONFIG1, 1136 data->config1); 1137 mutex_unlock(&data->update_lock); 1138 } 1139 return count; 1140} 1141 1142#define temp_crit_enable(offset) \ 1143static DEVICE_ATTR(temp##offset##_crit_enable, S_IRUGO | S_IWUSR, \ 1144 show_temp_crit_enable, set_temp_crit_enable); 1145 1146temp_crit_enable(1); 1147temp_crit_enable(2); 1148temp_crit_enable(3); 1149 1150static ssize_t show_temp_crit(struct device *dev, 1151 struct device_attribute *attr, char *buf) 1152{ 1153 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1154 int nr = sensor_attr->index; 1155 struct adm1026_data *data = adm1026_update_device(dev); 1156 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr])); 1157} 1158static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr, 1159 const char *buf, size_t count) 1160{ 1161 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1162 int nr = sensor_attr->index; 1163 struct i2c_client *client = to_i2c_client(dev); 1164 struct adm1026_data *data = i2c_get_clientdata(client); 1165 int val = simple_strtol(buf, NULL, 10); 1166 1167 mutex_lock(&data->update_lock); 1168 data->temp_crit[nr] = TEMP_TO_REG(val); 1169 adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr], 1170 data->temp_crit[nr]); 1171 mutex_unlock(&data->update_lock); 1172 return count; 1173} 1174 1175#define temp_crit_reg(offset) \ 1176static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \ 1177 show_temp_crit, set_temp_crit, offset - 1); 1178 1179temp_crit_reg(1); 1180temp_crit_reg(2); 1181temp_crit_reg(3); 1182 1183static ssize_t show_analog_out_reg(struct device *dev, struct device_attribute *attr, char *buf) 1184{ 1185 struct adm1026_data *data = adm1026_update_device(dev); 1186 return sprintf(buf, "%d\n", DAC_FROM_REG(data->analog_out)); 1187} 1188static ssize_t set_analog_out_reg(struct device *dev, struct device_attribute *attr, const char *buf, 1189 size_t count) 1190{ 1191 struct i2c_client *client = to_i2c_client(dev); 1192 struct adm1026_data *data = i2c_get_clientdata(client); 1193 int val = simple_strtol(buf, NULL, 10); 1194 1195 mutex_lock(&data->update_lock); 1196 data->analog_out = DAC_TO_REG(val); 1197 adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out); 1198 mutex_unlock(&data->update_lock); 1199 return count; 1200} 1201 1202static DEVICE_ATTR(analog_out, S_IRUGO | S_IWUSR, show_analog_out_reg, 1203 set_analog_out_reg); 1204 1205static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) 1206{ 1207 struct adm1026_data *data = adm1026_update_device(dev); 1208 int vid = (data->gpio >> 11) & 0x1f; 1209 1210 dev_dbg(dev, "Setting VID from GPIO11-15.\n"); 1211 return sprintf(buf, "%d\n", vid_from_reg(vid, data->vrm)); 1212} 1213static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); 1214 1215static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) 1216{ 1217 struct adm1026_data *data = dev_get_drvdata(dev); 1218 return sprintf(buf, "%d\n", data->vrm); 1219} 1220static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, 1221 size_t count) 1222{ 1223 struct adm1026_data *data = dev_get_drvdata(dev); 1224 1225 data->vrm = simple_strtol(buf, NULL, 10); 1226 return count; 1227} 1228 1229static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); 1230 1231static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) 1232{ 1233 struct adm1026_data *data = adm1026_update_device(dev); 1234 return sprintf(buf, "%ld\n", data->alarms); 1235} 1236 1237static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); 1238 1239static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, 1240 char *buf) 1241{ 1242 struct adm1026_data *data = adm1026_update_device(dev); 1243 int bitnr = to_sensor_dev_attr(attr)->index; 1244 return sprintf(buf, "%ld\n", (data->alarms >> bitnr) & 1); 1245} 1246 1247static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 0); 1248static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 1); 1249static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 1); 1250static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 2); 1251static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 3); 1252static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 4); 1253static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 5); 1254static SENSOR_DEVICE_ATTR(in15_alarm, S_IRUGO, show_alarm, NULL, 6); 1255static SENSOR_DEVICE_ATTR(in16_alarm, S_IRUGO, show_alarm, NULL, 7); 1256static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); 1257static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); 1258static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); 1259static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); 1260static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); 1261static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); 1262static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); 1263static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); 1264static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16); 1265static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17); 1266static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18); 1267static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 19); 1268static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 20); 1269static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 21); 1270static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 22); 1271static SENSOR_DEVICE_ATTR(fan8_alarm, S_IRUGO, show_alarm, NULL, 23); 1272static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 24); 1273static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 25); 1274static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 26); 1275 1276static ssize_t show_alarm_mask(struct device *dev, struct device_attribute *attr, char *buf) 1277{ 1278 struct adm1026_data *data = adm1026_update_device(dev); 1279 return sprintf(buf, "%ld\n", data->alarm_mask); 1280} 1281static ssize_t set_alarm_mask(struct device *dev, struct device_attribute *attr, const char *buf, 1282 size_t count) 1283{ 1284 struct i2c_client *client = to_i2c_client(dev); 1285 struct adm1026_data *data = i2c_get_clientdata(client); 1286 int val = simple_strtol(buf, NULL, 10); 1287 unsigned long mask; 1288 1289 mutex_lock(&data->update_lock); 1290 data->alarm_mask = val & 0x7fffffff; 1291 mask = data->alarm_mask 1292 | (data->gpio_mask & 0x10000 ? 0x80000000 : 0); 1293 adm1026_write_value(client, ADM1026_REG_MASK1, 1294 mask & 0xff); 1295 mask >>= 8; 1296 adm1026_write_value(client, ADM1026_REG_MASK2, 1297 mask & 0xff); 1298 mask >>= 8; 1299 adm1026_write_value(client, ADM1026_REG_MASK3, 1300 mask & 0xff); 1301 mask >>= 8; 1302 adm1026_write_value(client, ADM1026_REG_MASK4, 1303 mask & 0xff); 1304 mutex_unlock(&data->update_lock); 1305 return count; 1306} 1307 1308static DEVICE_ATTR(alarm_mask, S_IRUGO | S_IWUSR, show_alarm_mask, 1309 set_alarm_mask); 1310 1311 1312static ssize_t show_gpio(struct device *dev, struct device_attribute *attr, char *buf) 1313{ 1314 struct adm1026_data *data = adm1026_update_device(dev); 1315 return sprintf(buf, "%ld\n", data->gpio); 1316} 1317static ssize_t set_gpio(struct device *dev, struct device_attribute *attr, const char *buf, 1318 size_t count) 1319{ 1320 struct i2c_client *client = to_i2c_client(dev); 1321 struct adm1026_data *data = i2c_get_clientdata(client); 1322 int val = simple_strtol(buf, NULL, 10); 1323 long gpio; 1324 1325 mutex_lock(&data->update_lock); 1326 data->gpio = val & 0x1ffff; 1327 gpio = data->gpio; 1328 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7, gpio & 0xff); 1329 gpio >>= 8; 1330 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15, gpio & 0xff); 1331 gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f); 1332 adm1026_write_value(client, ADM1026_REG_STATUS4, gpio & 0xff); 1333 mutex_unlock(&data->update_lock); 1334 return count; 1335} 1336 1337static DEVICE_ATTR(gpio, S_IRUGO | S_IWUSR, show_gpio, set_gpio); 1338 1339 1340static ssize_t show_gpio_mask(struct device *dev, struct device_attribute *attr, char *buf) 1341{ 1342 struct adm1026_data *data = adm1026_update_device(dev); 1343 return sprintf(buf, "%ld\n", data->gpio_mask); 1344} 1345static ssize_t set_gpio_mask(struct device *dev, struct device_attribute *attr, const char *buf, 1346 size_t count) 1347{ 1348 struct i2c_client *client = to_i2c_client(dev); 1349 struct adm1026_data *data = i2c_get_clientdata(client); 1350 int val = simple_strtol(buf, NULL, 10); 1351 long mask; 1352 1353 mutex_lock(&data->update_lock); 1354 data->gpio_mask = val & 0x1ffff; 1355 mask = data->gpio_mask; 1356 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7, mask & 0xff); 1357 mask >>= 8; 1358 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15, mask & 0xff); 1359 mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f); 1360 adm1026_write_value(client, ADM1026_REG_MASK1, mask & 0xff); 1361 mutex_unlock(&data->update_lock); 1362 return count; 1363} 1364 1365static DEVICE_ATTR(gpio_mask, S_IRUGO | S_IWUSR, show_gpio_mask, set_gpio_mask); 1366 1367static ssize_t show_pwm_reg(struct device *dev, struct device_attribute *attr, char *buf) 1368{ 1369 struct adm1026_data *data = adm1026_update_device(dev); 1370 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm1.pwm)); 1371} 1372static ssize_t set_pwm_reg(struct device *dev, struct device_attribute *attr, const char *buf, 1373 size_t count) 1374{ 1375 struct i2c_client *client = to_i2c_client(dev); 1376 struct adm1026_data *data = i2c_get_clientdata(client); 1377 1378 if (data->pwm1.enable == 1) { 1379 int val = simple_strtol(buf, NULL, 10); 1380 1381 mutex_lock(&data->update_lock); 1382 data->pwm1.pwm = PWM_TO_REG(val); 1383 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm); 1384 mutex_unlock(&data->update_lock); 1385 } 1386 return count; 1387} 1388static ssize_t show_auto_pwm_min(struct device *dev, struct device_attribute *attr, char *buf) 1389{ 1390 struct adm1026_data *data = adm1026_update_device(dev); 1391 return sprintf(buf, "%d\n", data->pwm1.auto_pwm_min); 1392} 1393static ssize_t set_auto_pwm_min(struct device *dev, struct device_attribute *attr, const char *buf, 1394 size_t count) 1395{ 1396 struct i2c_client *client = to_i2c_client(dev); 1397 struct adm1026_data *data = i2c_get_clientdata(client); 1398 int val = simple_strtol(buf, NULL, 10); 1399 1400 mutex_lock(&data->update_lock); 1401 data->pwm1.auto_pwm_min = SENSORS_LIMIT(val, 0, 255); 1402 if (data->pwm1.enable == 2) { /* apply immediately */ 1403 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) | 1404 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min)); 1405 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm); 1406 } 1407 mutex_unlock(&data->update_lock); 1408 return count; 1409} 1410static ssize_t show_auto_pwm_max(struct device *dev, struct device_attribute *attr, char *buf) 1411{ 1412 return sprintf(buf, "%d\n", ADM1026_PWM_MAX); 1413} 1414static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf) 1415{ 1416 struct adm1026_data *data = adm1026_update_device(dev); 1417 return sprintf(buf, "%d\n", data->pwm1.enable); 1418} 1419static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf, 1420 size_t count) 1421{ 1422 struct i2c_client *client = to_i2c_client(dev); 1423 struct adm1026_data *data = i2c_get_clientdata(client); 1424 int val = simple_strtol(buf, NULL, 10); 1425 int old_enable; 1426 1427 if ((val >= 0) && (val < 3)) { 1428 mutex_lock(&data->update_lock); 1429 old_enable = data->pwm1.enable; 1430 data->pwm1.enable = val; 1431 data->config1 = (data->config1 & ~CFG1_PWM_AFC) 1432 | ((val == 2) ? CFG1_PWM_AFC : 0); 1433 adm1026_write_value(client, ADM1026_REG_CONFIG1, 1434 data->config1); 1435 if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */ 1436 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) | 1437 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min)); 1438 adm1026_write_value(client, ADM1026_REG_PWM, 1439 data->pwm1.pwm); 1440 } else if (!((old_enable == 1) && (val == 1))) { 1441 /* set pwm to safe value */ 1442 data->pwm1.pwm = 255; 1443 adm1026_write_value(client, ADM1026_REG_PWM, 1444 data->pwm1.pwm); 1445 } 1446 mutex_unlock(&data->update_lock); 1447 } 1448 return count; 1449} 1450 1451/* enable PWM fan control */ 1452static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg); 1453static DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg); 1454static DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg); 1455static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable, 1456 set_pwm_enable); 1457static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable, 1458 set_pwm_enable); 1459static DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable, 1460 set_pwm_enable); 1461static DEVICE_ATTR(temp1_auto_point1_pwm, S_IRUGO | S_IWUSR, 1462 show_auto_pwm_min, set_auto_pwm_min); 1463static DEVICE_ATTR(temp2_auto_point1_pwm, S_IRUGO | S_IWUSR, 1464 show_auto_pwm_min, set_auto_pwm_min); 1465static DEVICE_ATTR(temp3_auto_point1_pwm, S_IRUGO | S_IWUSR, 1466 show_auto_pwm_min, set_auto_pwm_min); 1467 1468static DEVICE_ATTR(temp1_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL); 1469static DEVICE_ATTR(temp2_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL); 1470static DEVICE_ATTR(temp3_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL); 1471 1472static struct attribute *adm1026_attributes[] = { 1473 &sensor_dev_attr_in0_input.dev_attr.attr, 1474 &sensor_dev_attr_in0_max.dev_attr.attr, 1475 &sensor_dev_attr_in0_min.dev_attr.attr, 1476 &sensor_dev_attr_in0_alarm.dev_attr.attr, 1477 &sensor_dev_attr_in1_input.dev_attr.attr, 1478 &sensor_dev_attr_in1_max.dev_attr.attr, 1479 &sensor_dev_attr_in1_min.dev_attr.attr, 1480 &sensor_dev_attr_in1_alarm.dev_attr.attr, 1481 &sensor_dev_attr_in2_input.dev_attr.attr, 1482 &sensor_dev_attr_in2_max.dev_attr.attr, 1483 &sensor_dev_attr_in2_min.dev_attr.attr, 1484 &sensor_dev_attr_in2_alarm.dev_attr.attr, 1485 &sensor_dev_attr_in3_input.dev_attr.attr, 1486 &sensor_dev_attr_in3_max.dev_attr.attr, 1487 &sensor_dev_attr_in3_min.dev_attr.attr, 1488 &sensor_dev_attr_in3_alarm.dev_attr.attr, 1489 &sensor_dev_attr_in4_input.dev_attr.attr, 1490 &sensor_dev_attr_in4_max.dev_attr.attr, 1491 &sensor_dev_attr_in4_min.dev_attr.attr, 1492 &sensor_dev_attr_in4_alarm.dev_attr.attr, 1493 &sensor_dev_attr_in5_input.dev_attr.attr, 1494 &sensor_dev_attr_in5_max.dev_attr.attr, 1495 &sensor_dev_attr_in5_min.dev_attr.attr, 1496 &sensor_dev_attr_in5_alarm.dev_attr.attr, 1497 &sensor_dev_attr_in6_input.dev_attr.attr, 1498 &sensor_dev_attr_in6_max.dev_attr.attr, 1499 &sensor_dev_attr_in6_min.dev_attr.attr, 1500 &sensor_dev_attr_in6_alarm.dev_attr.attr, 1501 &sensor_dev_attr_in7_input.dev_attr.attr, 1502 &sensor_dev_attr_in7_max.dev_attr.attr, 1503 &sensor_dev_attr_in7_min.dev_attr.attr, 1504 &sensor_dev_attr_in7_alarm.dev_attr.attr, 1505 &sensor_dev_attr_in10_input.dev_attr.attr, 1506 &sensor_dev_attr_in10_max.dev_attr.attr, 1507 &sensor_dev_attr_in10_min.dev_attr.attr, 1508 &sensor_dev_attr_in10_alarm.dev_attr.attr, 1509 &sensor_dev_attr_in11_input.dev_attr.attr, 1510 &sensor_dev_attr_in11_max.dev_attr.attr, 1511 &sensor_dev_attr_in11_min.dev_attr.attr, 1512 &sensor_dev_attr_in11_alarm.dev_attr.attr, 1513 &sensor_dev_attr_in12_input.dev_attr.attr, 1514 &sensor_dev_attr_in12_max.dev_attr.attr, 1515 &sensor_dev_attr_in12_min.dev_attr.attr, 1516 &sensor_dev_attr_in12_alarm.dev_attr.attr, 1517 &sensor_dev_attr_in13_input.dev_attr.attr, 1518 &sensor_dev_attr_in13_max.dev_attr.attr, 1519 &sensor_dev_attr_in13_min.dev_attr.attr, 1520 &sensor_dev_attr_in13_alarm.dev_attr.attr, 1521 &sensor_dev_attr_in14_input.dev_attr.attr, 1522 &sensor_dev_attr_in14_max.dev_attr.attr, 1523 &sensor_dev_attr_in14_min.dev_attr.attr, 1524 &sensor_dev_attr_in14_alarm.dev_attr.attr, 1525 &sensor_dev_attr_in15_input.dev_attr.attr, 1526 &sensor_dev_attr_in15_max.dev_attr.attr, 1527 &sensor_dev_attr_in15_min.dev_attr.attr, 1528 &sensor_dev_attr_in15_alarm.dev_attr.attr, 1529 &sensor_dev_attr_in16_input.dev_attr.attr, 1530 &sensor_dev_attr_in16_max.dev_attr.attr, 1531 &sensor_dev_attr_in16_min.dev_attr.attr, 1532 &sensor_dev_attr_in16_alarm.dev_attr.attr, 1533 &sensor_dev_attr_fan1_input.dev_attr.attr, 1534 &sensor_dev_attr_fan1_div.dev_attr.attr, 1535 &sensor_dev_attr_fan1_min.dev_attr.attr, 1536 &sensor_dev_attr_fan1_alarm.dev_attr.attr, 1537 &sensor_dev_attr_fan2_input.dev_attr.attr, 1538 &sensor_dev_attr_fan2_div.dev_attr.attr, 1539 &sensor_dev_attr_fan2_min.dev_attr.attr, 1540 &sensor_dev_attr_fan2_alarm.dev_attr.attr, 1541 &sensor_dev_attr_fan3_input.dev_attr.attr, 1542 &sensor_dev_attr_fan3_div.dev_attr.attr, 1543 &sensor_dev_attr_fan3_min.dev_attr.attr, 1544 &sensor_dev_attr_fan3_alarm.dev_attr.attr, 1545 &sensor_dev_attr_fan4_input.dev_attr.attr, 1546 &sensor_dev_attr_fan4_div.dev_attr.attr, 1547 &sensor_dev_attr_fan4_min.dev_attr.attr, 1548 &sensor_dev_attr_fan4_alarm.dev_attr.attr, 1549 &sensor_dev_attr_fan5_input.dev_attr.attr, 1550 &sensor_dev_attr_fan5_div.dev_attr.attr, 1551 &sensor_dev_attr_fan5_min.dev_attr.attr, 1552 &sensor_dev_attr_fan5_alarm.dev_attr.attr, 1553 &sensor_dev_attr_fan6_input.dev_attr.attr, 1554 &sensor_dev_attr_fan6_div.dev_attr.attr, 1555 &sensor_dev_attr_fan6_min.dev_attr.attr, 1556 &sensor_dev_attr_fan6_alarm.dev_attr.attr, 1557 &sensor_dev_attr_fan7_input.dev_attr.attr, 1558 &sensor_dev_attr_fan7_div.dev_attr.attr, 1559 &sensor_dev_attr_fan7_min.dev_attr.attr, 1560 &sensor_dev_attr_fan7_alarm.dev_attr.attr, 1561 &sensor_dev_attr_fan8_input.dev_attr.attr, 1562 &sensor_dev_attr_fan8_div.dev_attr.attr, 1563 &sensor_dev_attr_fan8_min.dev_attr.attr, 1564 &sensor_dev_attr_fan8_alarm.dev_attr.attr, 1565 &sensor_dev_attr_temp1_input.dev_attr.attr, 1566 &sensor_dev_attr_temp1_max.dev_attr.attr, 1567 &sensor_dev_attr_temp1_min.dev_attr.attr, 1568 &sensor_dev_attr_temp1_alarm.dev_attr.attr, 1569 &sensor_dev_attr_temp2_input.dev_attr.attr, 1570 &sensor_dev_attr_temp2_max.dev_attr.attr, 1571 &sensor_dev_attr_temp2_min.dev_attr.attr, 1572 &sensor_dev_attr_temp2_alarm.dev_attr.attr, 1573 &sensor_dev_attr_temp1_offset.dev_attr.attr, 1574 &sensor_dev_attr_temp2_offset.dev_attr.attr, 1575 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, 1576 &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, 1577 &sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr.attr, 1578 &sensor_dev_attr_temp2_auto_point1_temp_hyst.dev_attr.attr, 1579 &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, 1580 &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, 1581 &sensor_dev_attr_temp1_crit.dev_attr.attr, 1582 &sensor_dev_attr_temp2_crit.dev_attr.attr, 1583 &dev_attr_temp1_crit_enable.attr, 1584 &dev_attr_temp2_crit_enable.attr, 1585 &dev_attr_cpu0_vid.attr, 1586 &dev_attr_vrm.attr, 1587 &dev_attr_alarms.attr, 1588 &dev_attr_alarm_mask.attr, 1589 &dev_attr_gpio.attr, 1590 &dev_attr_gpio_mask.attr, 1591 &dev_attr_pwm1.attr, 1592 &dev_attr_pwm2.attr, 1593 &dev_attr_pwm3.attr, 1594 &dev_attr_pwm1_enable.attr, 1595 &dev_attr_pwm2_enable.attr, 1596 &dev_attr_pwm3_enable.attr, 1597 &dev_attr_temp1_auto_point1_pwm.attr, 1598 &dev_attr_temp2_auto_point1_pwm.attr, 1599 &dev_attr_temp1_auto_point2_pwm.attr, 1600 &dev_attr_temp2_auto_point2_pwm.attr, 1601 &dev_attr_analog_out.attr, 1602 NULL 1603}; 1604 1605static const struct attribute_group adm1026_group = { 1606 .attrs = adm1026_attributes, 1607}; 1608 1609static struct attribute *adm1026_attributes_temp3[] = { 1610 &sensor_dev_attr_temp3_input.dev_attr.attr, 1611 &sensor_dev_attr_temp3_max.dev_attr.attr, 1612 &sensor_dev_attr_temp3_min.dev_attr.attr, 1613 &sensor_dev_attr_temp3_alarm.dev_attr.attr, 1614 &sensor_dev_attr_temp3_offset.dev_attr.attr, 1615 &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, 1616 &sensor_dev_attr_temp3_auto_point1_temp_hyst.dev_attr.attr, 1617 &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, 1618 &sensor_dev_attr_temp3_crit.dev_attr.attr, 1619 &dev_attr_temp3_crit_enable.attr, 1620 &dev_attr_temp3_auto_point1_pwm.attr, 1621 &dev_attr_temp3_auto_point2_pwm.attr, 1622 NULL 1623}; 1624 1625static const struct attribute_group adm1026_group_temp3 = { 1626 .attrs = adm1026_attributes_temp3, 1627}; 1628 1629static struct attribute *adm1026_attributes_in8_9[] = { 1630 &sensor_dev_attr_in8_input.dev_attr.attr, 1631 &sensor_dev_attr_in8_max.dev_attr.attr, 1632 &sensor_dev_attr_in8_min.dev_attr.attr, 1633 &sensor_dev_attr_in8_alarm.dev_attr.attr, 1634 &sensor_dev_attr_in9_input.dev_attr.attr, 1635 &sensor_dev_attr_in9_max.dev_attr.attr, 1636 &sensor_dev_attr_in9_min.dev_attr.attr, 1637 &sensor_dev_attr_in9_alarm.dev_attr.attr, 1638 NULL 1639}; 1640 1641static const struct attribute_group adm1026_group_in8_9 = { 1642 .attrs = adm1026_attributes_in8_9, 1643}; 1644 1645/* Return 0 if detection is successful, -ENODEV otherwise */ 1646static int adm1026_detect(struct i2c_client *client, 1647 struct i2c_board_info *info) 1648{ 1649 struct i2c_adapter *adapter = client->adapter; 1650 int address = client->addr; 1651 int company, verstep; 1652 1653 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { 1654 /* We need to be able to do byte I/O */ 1655 return -ENODEV; 1656 }; 1657 1658 /* Now, we do the remaining detection. */ 1659 1660 company = adm1026_read_value(client, ADM1026_REG_COMPANY); 1661 verstep = adm1026_read_value(client, ADM1026_REG_VERSTEP); 1662 1663 dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with" 1664 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n", 1665 i2c_adapter_id(client->adapter), client->addr, 1666 company, verstep); 1667 1668 /* Determine the chip type. */ 1669 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x...\n", 1670 i2c_adapter_id(adapter), address); 1671 if (company == ADM1026_COMPANY_ANALOG_DEV 1672 && verstep == ADM1026_VERSTEP_ADM1026) { 1673 /* Analog Devices ADM1026 */ 1674 } else if (company == ADM1026_COMPANY_ANALOG_DEV 1675 && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) { 1676 dev_err(&adapter->dev, "Unrecognized stepping " 1677 "0x%02x. Defaulting to ADM1026.\n", verstep); 1678 } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) { 1679 dev_err(&adapter->dev, "Found version/stepping " 1680 "0x%02x. Assuming generic ADM1026.\n", 1681 verstep); 1682 } else { 1683 dev_dbg(&adapter->dev, "Autodetection failed\n"); 1684 /* Not an ADM1026... */ 1685 return -ENODEV; 1686 } 1687 1688 strlcpy(info->type, "adm1026", I2C_NAME_SIZE); 1689 1690 return 0; 1691} 1692 1693static int adm1026_probe(struct i2c_client *client, 1694 const struct i2c_device_id *id) 1695{ 1696 struct adm1026_data *data; 1697 int err; 1698 1699 data = kzalloc(sizeof(struct adm1026_data), GFP_KERNEL); 1700 if (!data) { 1701 err = -ENOMEM; 1702 goto exit; 1703 } 1704 1705 i2c_set_clientdata(client, data); 1706 mutex_init(&data->update_lock); 1707 1708 /* Set the VRM version */ 1709 data->vrm = vid_which_vrm(); 1710 1711 /* Initialize the ADM1026 chip */ 1712 adm1026_init_client(client); 1713 1714 /* Register sysfs hooks */ 1715 if ((err = sysfs_create_group(&client->dev.kobj, &adm1026_group))) 1716 goto exitfree; 1717 if (data->config1 & CFG1_AIN8_9) 1718 err = sysfs_create_group(&client->dev.kobj, 1719 &adm1026_group_in8_9); 1720 else 1721 err = sysfs_create_group(&client->dev.kobj, 1722 &adm1026_group_temp3); 1723 if (err) 1724 goto exitremove; 1725 1726 data->hwmon_dev = hwmon_device_register(&client->dev); 1727 if (IS_ERR(data->hwmon_dev)) { 1728 err = PTR_ERR(data->hwmon_dev); 1729 goto exitremove; 1730 } 1731 1732 return 0; 1733 1734 /* Error out and cleanup code */ 1735exitremove: 1736 sysfs_remove_group(&client->dev.kobj, &adm1026_group); 1737 if (data->config1 & CFG1_AIN8_9) 1738 sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9); 1739 else 1740 sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3); 1741exitfree: 1742 kfree(data); 1743exit: 1744 return err; 1745} 1746 1747static int adm1026_remove(struct i2c_client *client) 1748{ 1749 struct adm1026_data *data = i2c_get_clientdata(client); 1750 hwmon_device_unregister(data->hwmon_dev); 1751 sysfs_remove_group(&client->dev.kobj, &adm1026_group); 1752 if (data->config1 & CFG1_AIN8_9) 1753 sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9); 1754 else 1755 sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3); 1756 kfree(data); 1757 return 0; 1758} 1759 1760static int __init sm_adm1026_init(void) 1761{ 1762 return i2c_add_driver(&adm1026_driver); 1763} 1764 1765static void __exit sm_adm1026_exit(void) 1766{ 1767 i2c_del_driver(&adm1026_driver); 1768} 1769 1770MODULE_LICENSE("GPL"); 1771MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, " 1772 "Justin Thiessen <jthiessen@penguincomputing.com>"); 1773MODULE_DESCRIPTION("ADM1026 driver"); 1774 1775module_init(sm_adm1026_init); 1776module_exit(sm_adm1026_exit); 1777