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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * adm1026.c - Part of lm_sensors, Linux kernel modules for hardware4 * monitoring5 * Copyright (C) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>6 * Copyright (C) 2004 Justin Thiessen <jthiessen@penguincomputing.com>7 *8 * Chip details at:9 *10 * <https://www.onsemi.com/PowerSolutions/product.do?id=ADM1026>11 */12 13#include <linux/module.h>14#include <linux/init.h>15#include <linux/slab.h>16#include <linux/jiffies.h>17#include <linux/i2c.h>18#include <linux/hwmon.h>19#include <linux/hwmon-sysfs.h>20#include <linux/hwmon-vid.h>21#include <linux/err.h>22#include <linux/mutex.h>23 24/* Addresses to scan */25static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };26 27static int gpio_input[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,28 -1, -1, -1, -1, -1, -1, -1, -1 };29static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,30 -1, -1, -1, -1, -1, -1, -1, -1 };31static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,32 -1, -1, -1, -1, -1, -1, -1, -1 };33static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,34 -1, -1, -1, -1, -1, -1, -1, -1 };35static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };36module_param_array(gpio_input, int, NULL, 0);37MODULE_PARM_DESC(gpio_input, "List of GPIO pins (0-16) to program as inputs");38module_param_array(gpio_output, int, NULL, 0);39MODULE_PARM_DESC(gpio_output,40 "List of GPIO pins (0-16) to program as outputs");41module_param_array(gpio_inverted, int, NULL, 0);42MODULE_PARM_DESC(gpio_inverted,43 "List of GPIO pins (0-16) to program as inverted");44module_param_array(gpio_normal, int, NULL, 0);45MODULE_PARM_DESC(gpio_normal,46 "List of GPIO pins (0-16) to program as normal/non-inverted");47module_param_array(gpio_fan, int, NULL, 0);48MODULE_PARM_DESC(gpio_fan, "List of GPIO pins (0-7) to program as fan tachs");49 50/* Many ADM1026 constants specified below */51 52/* The ADM1026 registers */53#define ADM1026_REG_CONFIG1 0x0054#define CFG1_MONITOR 0x0155#define CFG1_INT_ENABLE 0x0256#define CFG1_INT_CLEAR 0x0457#define CFG1_AIN8_9 0x0858#define CFG1_THERM_HOT 0x1059#define CFG1_DAC_AFC 0x2060#define CFG1_PWM_AFC 0x4061#define CFG1_RESET 0x8062 63#define ADM1026_REG_CONFIG2 0x0164/* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */65 66#define ADM1026_REG_CONFIG3 0x0767#define CFG3_GPIO16_ENABLE 0x0168#define CFG3_CI_CLEAR 0x0269#define CFG3_VREF_250 0x0470#define CFG3_GPIO16_DIR 0x4071#define CFG3_GPIO16_POL 0x8072 73#define ADM1026_REG_E2CONFIG 0x1374#define E2CFG_READ 0x0175#define E2CFG_WRITE 0x0276#define E2CFG_ERASE 0x0477#define E2CFG_ROM 0x0878#define E2CFG_CLK_EXT 0x8079 80/*81 * There are 10 general analog inputs and 7 dedicated inputs82 * They are:83 * 0 - 9 = AIN0 - AIN984 * 10 = Vbat85 * 11 = 3.3V Standby86 * 12 = 3.3V Main87 * 13 = +5V88 * 14 = Vccp (CPU core voltage)89 * 15 = +12V90 * 16 = -12V91 */92static u16 ADM1026_REG_IN[] = {93 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,94 0x36, 0x37, 0x27, 0x29, 0x26, 0x2a,95 0x2b, 0x2c, 0x2d, 0x2e, 0x2f96 };97static u16 ADM1026_REG_IN_MIN[] = {98 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d,99 0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a,100 0x4b, 0x4c, 0x4d, 0x4e, 0x4f101 };102static u16 ADM1026_REG_IN_MAX[] = {103 0x50, 0x51, 0x52, 0x53, 0x54, 0x55,104 0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42,105 0x43, 0x44, 0x45, 0x46, 0x47106 };107 108/*109 * Temperatures are:110 * 0 - Internal111 * 1 - External 1112 * 2 - External 2113 */114static u16 ADM1026_REG_TEMP[] = { 0x1f, 0x28, 0x29 };115static u16 ADM1026_REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 };116static u16 ADM1026_REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 };117static u16 ADM1026_REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 };118static u16 ADM1026_REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f };119static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f };120 121#define ADM1026_REG_FAN(nr) (0x38 + (nr))122#define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr))123#define ADM1026_REG_FAN_DIV_0_3 0x02124#define ADM1026_REG_FAN_DIV_4_7 0x03125 126#define ADM1026_REG_DAC 0x04127#define ADM1026_REG_PWM 0x05128 129#define ADM1026_REG_GPIO_CFG_0_3 0x08130#define ADM1026_REG_GPIO_CFG_4_7 0x09131#define ADM1026_REG_GPIO_CFG_8_11 0x0a132#define ADM1026_REG_GPIO_CFG_12_15 0x0b133/* CFG_16 in REG_CFG3 */134#define ADM1026_REG_GPIO_STATUS_0_7 0x24135#define ADM1026_REG_GPIO_STATUS_8_15 0x25136/* STATUS_16 in REG_STATUS4 */137#define ADM1026_REG_GPIO_MASK_0_7 0x1c138#define ADM1026_REG_GPIO_MASK_8_15 0x1d139/* MASK_16 in REG_MASK4 */140 141#define ADM1026_REG_COMPANY 0x16142#define ADM1026_REG_VERSTEP 0x17143/* These are the recognized values for the above regs */144#define ADM1026_COMPANY_ANALOG_DEV 0x41145#define ADM1026_VERSTEP_GENERIC 0x40146#define ADM1026_VERSTEP_ADM1026 0x44147 148#define ADM1026_REG_MASK1 0x18149#define ADM1026_REG_MASK2 0x19150#define ADM1026_REG_MASK3 0x1a151#define ADM1026_REG_MASK4 0x1b152 153#define ADM1026_REG_STATUS1 0x20154#define ADM1026_REG_STATUS2 0x21155#define ADM1026_REG_STATUS3 0x22156#define ADM1026_REG_STATUS4 0x23157 158#define ADM1026_FAN_ACTIVATION_TEMP_HYST -6159#define ADM1026_FAN_CONTROL_TEMP_RANGE 20160#define ADM1026_PWM_MAX 255161 162/*163 * Conversions. Rounding and limit checking is only done on the TO_REG164 * variants. Note that you should be a bit careful with which arguments165 * these macros are called: arguments may be evaluated more than once.166 */167 168/*169 * IN are scaled according to built-in resistors. These are the170 * voltages corresponding to 3/4 of full scale (192 or 0xc0)171 * NOTE: The -12V input needs an additional factor to account172 * for the Vref pullup resistor.173 * NEG12_OFFSET = SCALE * Vref / V-192 - Vref174 * = 13875 * 2.50 / 1.875 - 2500175 * = 16000176 *177 * The values in this table are based on Table II, page 15 of the178 * datasheet.179 */180static int adm1026_scaling[] = { /* .001 Volts */181 2250, 2250, 2250, 2250, 2250, 2250,182 1875, 1875, 1875, 1875, 3000, 3330,183 3330, 4995, 2250, 12000, 13875184 };185#define NEG12_OFFSET 16000186#define SCALE(val, from, to) (((val)*(to) + ((from)/2))/(from))187#define INS_TO_REG(n, val) \188 SCALE(clamp_val(val, 0, 255 * adm1026_scaling[n] / 192), \189 adm1026_scaling[n], 192)190#define INS_FROM_REG(n, val) (SCALE(val, 192, adm1026_scaling[n]))191 192/*193 * FAN speed is measured using 22.5kHz clock and counts for 2 pulses194 * and we assume a 2 pulse-per-rev fan tach signal195 * 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000196 */197#define FAN_TO_REG(val, div) ((val) <= 0 ? 0xff : \198 clamp_val(1350000 / ((val) * (div)), \199 1, 254))200#define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 0xff ? 0 : \201 1350000 / ((val) * (div)))202#define DIV_FROM_REG(val) (1 << (val))203#define DIV_TO_REG(val) ((val) >= 8 ? 3 : (val) >= 4 ? 2 : (val) >= 2 ? 1 : 0)204 205/* Temperature is reported in 1 degC increments */206#define TEMP_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), \207 1000)208#define TEMP_FROM_REG(val) ((val) * 1000)209#define OFFSET_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), \210 1000)211#define OFFSET_FROM_REG(val) ((val) * 1000)212 213#define PWM_TO_REG(val) (clamp_val(val, 0, 255))214#define PWM_FROM_REG(val) (val)215 216#define PWM_MIN_TO_REG(val) ((val) & 0xf0)217#define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4))218 219/*220 * Analog output is a voltage, and scaled to millivolts. The datasheet221 * indicates that the DAC could be used to drive the fans, but in our222 * example board (Arima HDAMA) it isn't connected to the fans at all.223 */224#define DAC_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val(val, 0, 2500) * 255, \225 2500)226#define DAC_FROM_REG(val) (((val) * 2500) / 255)227 228/*229 * Chip sampling rates230 *231 * Some sensors are not updated more frequently than once per second232 * so it doesn't make sense to read them more often than that.233 * We cache the results and return the saved data if the driver234 * is called again before a second has elapsed.235 *236 * Also, there is significant configuration data for this chip237 * So, we keep the config data up to date in the cache238 * when it is written and only sample it once every 5 *minutes*239 */240#define ADM1026_DATA_INTERVAL (1 * HZ)241#define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ)242 243/*244 * We allow for multiple chips in a single system.245 *246 * For each registered ADM1026, we need to keep state information247 * at client->data. The adm1026_data structure is dynamically248 * allocated, when a new client structure is allocated.249 */250 251struct pwm_data {252 u8 pwm;253 u8 enable;254 u8 auto_pwm_min;255};256 257struct adm1026_data {258 struct i2c_client *client;259 const struct attribute_group *groups[3];260 261 struct mutex update_lock;262 bool valid; /* true 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_read_value(struct i2c_client *client, u8 reg)292{293 int res;294 295 if (reg < 0x80) {296 /* "RAM" locations */297 res = i2c_smbus_read_byte_data(client, reg) & 0xff;298 } else {299 /* EEPROM, do nothing */300 res = 0;301 }302 return res;303}304 305static int adm1026_write_value(struct i2c_client *client, u8 reg, int value)306{307 int res;308 309 if (reg < 0x80) {310 /* "RAM" locations */311 res = i2c_smbus_write_byte_data(client, reg, value);312 } else {313 /* EEPROM, do nothing */314 res = 0;315 }316 return res;317}318 319static struct adm1026_data *adm1026_update_device(struct device *dev)320{321 struct adm1026_data *data = dev_get_drvdata(dev);322 struct i2c_client *client = data->client;323 int i;324 long value, alarms, gpio;325 326 mutex_lock(&data->update_lock);327 if (!data->valid328 || time_after(jiffies,329 data->last_reading + ADM1026_DATA_INTERVAL)) {330 /* Things that change quickly */331 dev_dbg(&client->dev, "Reading sensor values\n");332 for (i = 0; i <= 16; ++i) {333 data->in[i] =334 adm1026_read_value(client, ADM1026_REG_IN[i]);335 }336 337 for (i = 0; i <= 7; ++i) {338 data->fan[i] =339 adm1026_read_value(client, ADM1026_REG_FAN(i));340 }341 342 for (i = 0; i <= 2; ++i) {343 /*344 * NOTE: temp[] is s8 and we assume 2's complement345 * "conversion" in the assignment346 */347 data->temp[i] =348 adm1026_read_value(client, ADM1026_REG_TEMP[i]);349 }350 351 data->pwm1.pwm = adm1026_read_value(client,352 ADM1026_REG_PWM);353 data->analog_out = adm1026_read_value(client,354 ADM1026_REG_DAC);355 /* GPIO16 is MSbit of alarms, move it to gpio */356 alarms = adm1026_read_value(client, ADM1026_REG_STATUS4);357 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */358 alarms &= 0x7f;359 alarms <<= 8;360 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3);361 alarms <<= 8;362 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2);363 alarms <<= 8;364 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1);365 data->alarms = alarms;366 367 /* Read the GPIO values */368 gpio |= adm1026_read_value(client,369 ADM1026_REG_GPIO_STATUS_8_15);370 gpio <<= 8;371 gpio |= adm1026_read_value(client,372 ADM1026_REG_GPIO_STATUS_0_7);373 data->gpio = gpio;374 375 data->last_reading = jiffies;376 } /* last_reading */377 378 if (!data->valid ||379 time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) {380 /* Things that don't change often */381 dev_dbg(&client->dev, "Reading config values\n");382 for (i = 0; i <= 16; ++i) {383 data->in_min[i] = adm1026_read_value(client,384 ADM1026_REG_IN_MIN[i]);385 data->in_max[i] = adm1026_read_value(client,386 ADM1026_REG_IN_MAX[i]);387 }388 389 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3)390 | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7)391 << 8);392 for (i = 0; i <= 7; ++i) {393 data->fan_min[i] = adm1026_read_value(client,394 ADM1026_REG_FAN_MIN(i));395 data->fan_div[i] = DIV_FROM_REG(value & 0x03);396 value >>= 2;397 }398 399 for (i = 0; i <= 2; ++i) {400 /*401 * NOTE: temp_xxx[] are s8 and we assume 2's402 * complement "conversion" in the assignment403 */404 data->temp_min[i] = adm1026_read_value(client,405 ADM1026_REG_TEMP_MIN[i]);406 data->temp_max[i] = adm1026_read_value(client,407 ADM1026_REG_TEMP_MAX[i]);408 data->temp_tmin[i] = adm1026_read_value(client,409 ADM1026_REG_TEMP_TMIN[i]);410 data->temp_crit[i] = adm1026_read_value(client,411 ADM1026_REG_TEMP_THERM[i]);412 data->temp_offset[i] = adm1026_read_value(client,413 ADM1026_REG_TEMP_OFFSET[i]);414 }415 416 /* Read the STATUS/alarm masks */417 alarms = adm1026_read_value(client, ADM1026_REG_MASK4);418 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */419 alarms = (alarms & 0x7f) << 8;420 alarms |= adm1026_read_value(client, ADM1026_REG_MASK3);421 alarms <<= 8;422 alarms |= adm1026_read_value(client, ADM1026_REG_MASK2);423 alarms <<= 8;424 alarms |= adm1026_read_value(client, ADM1026_REG_MASK1);425 data->alarm_mask = alarms;426 427 /* Read the GPIO values */428 gpio |= adm1026_read_value(client,429 ADM1026_REG_GPIO_MASK_8_15);430 gpio <<= 8;431 gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7);432 data->gpio_mask = gpio;433 434 /* Read various values from CONFIG1 */435 data->config1 = adm1026_read_value(client,436 ADM1026_REG_CONFIG1);437 if (data->config1 & CFG1_PWM_AFC) {438 data->pwm1.enable = 2;439 data->pwm1.auto_pwm_min =440 PWM_MIN_FROM_REG(data->pwm1.pwm);441 }442 /* Read the GPIO config */443 data->config2 = adm1026_read_value(client,444 ADM1026_REG_CONFIG2);445 data->config3 = adm1026_read_value(client,446 ADM1026_REG_CONFIG3);447 data->gpio_config[16] = (data->config3 >> 6) & 0x03;448 449 value = 0;450 for (i = 0; i <= 15; ++i) {451 if ((i & 0x03) == 0) {452 value = adm1026_read_value(client,453 ADM1026_REG_GPIO_CFG_0_3 + i/4);454 }455 data->gpio_config[i] = value & 0x03;456 value >>= 2;457 }458 459 data->last_config = jiffies;460 } /* last_config */461 462 data->valid = true;463 mutex_unlock(&data->update_lock);464 return data;465}466 467static ssize_t in_show(struct device *dev, struct device_attribute *attr,468 char *buf)469{470 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);471 int nr = sensor_attr->index;472 struct adm1026_data *data = adm1026_update_device(dev);473 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in[nr]));474}475static ssize_t in_min_show(struct device *dev, struct device_attribute *attr,476 char *buf)477{478 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);479 int nr = sensor_attr->index;480 struct adm1026_data *data = adm1026_update_device(dev);481 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr]));482}483static ssize_t in_min_store(struct device *dev, struct device_attribute *attr,484 const char *buf, size_t count)485{486 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);487 int nr = sensor_attr->index;488 struct adm1026_data *data = dev_get_drvdata(dev);489 struct i2c_client *client = data->client;490 long val;491 int err;492 493 err = kstrtol(buf, 10, &val);494 if (err)495 return err;496 497 mutex_lock(&data->update_lock);498 data->in_min[nr] = INS_TO_REG(nr, val);499 adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]);500 mutex_unlock(&data->update_lock);501 return count;502}503static ssize_t in_max_show(struct device *dev, struct device_attribute *attr,504 char *buf)505{506 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);507 int nr = sensor_attr->index;508 struct adm1026_data *data = adm1026_update_device(dev);509 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr]));510}511static ssize_t in_max_store(struct device *dev, struct device_attribute *attr,512 const char *buf, size_t count)513{514 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);515 int nr = sensor_attr->index;516 struct adm1026_data *data = dev_get_drvdata(dev);517 struct i2c_client *client = data->client;518 long val;519 int err;520 521 err = kstrtol(buf, 10, &val);522 if (err)523 return err;524 525 mutex_lock(&data->update_lock);526 data->in_max[nr] = INS_TO_REG(nr, val);527 adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]);528 mutex_unlock(&data->update_lock);529 return count;530}531 532static SENSOR_DEVICE_ATTR_RO(in0_input, in, 0);533static SENSOR_DEVICE_ATTR_RW(in0_min, in_min, 0);534static SENSOR_DEVICE_ATTR_RW(in0_max, in_max, 0);535static SENSOR_DEVICE_ATTR_RO(in1_input, in, 1);536static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 1);537static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 1);538static SENSOR_DEVICE_ATTR_RO(in2_input, in, 2);539static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 2);540static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 2);541static SENSOR_DEVICE_ATTR_RO(in3_input, in, 3);542static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 3);543static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 3);544static SENSOR_DEVICE_ATTR_RO(in4_input, in, 4);545static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 4);546static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 4);547static SENSOR_DEVICE_ATTR_RO(in5_input, in, 5);548static SENSOR_DEVICE_ATTR_RW(in5_min, in_min, 5);549static SENSOR_DEVICE_ATTR_RW(in5_max, in_max, 5);550static SENSOR_DEVICE_ATTR_RO(in6_input, in, 6);551static SENSOR_DEVICE_ATTR_RW(in6_min, in_min, 6);552static SENSOR_DEVICE_ATTR_RW(in6_max, in_max, 6);553static SENSOR_DEVICE_ATTR_RO(in7_input, in, 7);554static SENSOR_DEVICE_ATTR_RW(in7_min, in_min, 7);555static SENSOR_DEVICE_ATTR_RW(in7_max, in_max, 7);556static SENSOR_DEVICE_ATTR_RO(in8_input, in, 8);557static SENSOR_DEVICE_ATTR_RW(in8_min, in_min, 8);558static SENSOR_DEVICE_ATTR_RW(in8_max, in_max, 8);559static SENSOR_DEVICE_ATTR_RO(in9_input, in, 9);560static SENSOR_DEVICE_ATTR_RW(in9_min, in_min, 9);561static SENSOR_DEVICE_ATTR_RW(in9_max, in_max, 9);562static SENSOR_DEVICE_ATTR_RO(in10_input, in, 10);563static SENSOR_DEVICE_ATTR_RW(in10_min, in_min, 10);564static SENSOR_DEVICE_ATTR_RW(in10_max, in_max, 10);565static SENSOR_DEVICE_ATTR_RO(in11_input, in, 11);566static SENSOR_DEVICE_ATTR_RW(in11_min, in_min, 11);567static SENSOR_DEVICE_ATTR_RW(in11_max, in_max, 11);568static SENSOR_DEVICE_ATTR_RO(in12_input, in, 12);569static SENSOR_DEVICE_ATTR_RW(in12_min, in_min, 12);570static SENSOR_DEVICE_ATTR_RW(in12_max, in_max, 12);571static SENSOR_DEVICE_ATTR_RO(in13_input, in, 13);572static SENSOR_DEVICE_ATTR_RW(in13_min, in_min, 13);573static SENSOR_DEVICE_ATTR_RW(in13_max, in_max, 13);574static SENSOR_DEVICE_ATTR_RO(in14_input, in, 14);575static SENSOR_DEVICE_ATTR_RW(in14_min, in_min, 14);576static SENSOR_DEVICE_ATTR_RW(in14_max, in_max, 14);577static SENSOR_DEVICE_ATTR_RO(in15_input, in, 15);578static SENSOR_DEVICE_ATTR_RW(in15_min, in_min, 15);579static SENSOR_DEVICE_ATTR_RW(in15_max, in_max, 15);580 581static ssize_t in16_show(struct device *dev, struct device_attribute *attr,582 char *buf)583{584 struct adm1026_data *data = adm1026_update_device(dev);585 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in[16]) -586 NEG12_OFFSET);587}588static ssize_t in16_min_show(struct device *dev,589 struct device_attribute *attr, char *buf)590{591 struct adm1026_data *data = adm1026_update_device(dev);592 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_min[16])593 - NEG12_OFFSET);594}595static ssize_t in16_min_store(struct device *dev,596 struct device_attribute *attr, const char *buf,597 size_t count)598{599 struct adm1026_data *data = dev_get_drvdata(dev);600 struct i2c_client *client = data->client;601 long val;602 int err;603 604 err = kstrtol(buf, 10, &val);605 if (err)606 return err;607 608 mutex_lock(&data->update_lock);609 data->in_min[16] = INS_TO_REG(16,610 clamp_val(val, INT_MIN,611 INT_MAX - NEG12_OFFSET) +612 NEG12_OFFSET);613 adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]);614 mutex_unlock(&data->update_lock);615 return count;616}617static ssize_t in16_max_show(struct device *dev,618 struct device_attribute *attr, char *buf)619{620 struct adm1026_data *data = adm1026_update_device(dev);621 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_max[16])622 - NEG12_OFFSET);623}624static ssize_t in16_max_store(struct device *dev,625 struct device_attribute *attr, const char *buf,626 size_t count)627{628 struct adm1026_data *data = dev_get_drvdata(dev);629 struct i2c_client *client = data->client;630 long val;631 int err;632 633 err = kstrtol(buf, 10, &val);634 if (err)635 return err;636 637 mutex_lock(&data->update_lock);638 data->in_max[16] = INS_TO_REG(16,639 clamp_val(val, INT_MIN,640 INT_MAX - NEG12_OFFSET) +641 NEG12_OFFSET);642 adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]);643 mutex_unlock(&data->update_lock);644 return count;645}646 647static SENSOR_DEVICE_ATTR_RO(in16_input, in16, 16);648static SENSOR_DEVICE_ATTR_RW(in16_min, in16_min, 16);649static SENSOR_DEVICE_ATTR_RW(in16_max, in16_max, 16);650 651/* Now add fan read/write functions */652 653static ssize_t fan_show(struct device *dev, struct device_attribute *attr,654 char *buf)655{656 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);657 int nr = sensor_attr->index;658 struct adm1026_data *data = adm1026_update_device(dev);659 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],660 data->fan_div[nr]));661}662static ssize_t fan_min_show(struct device *dev, struct device_attribute *attr,663 char *buf)664{665 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);666 int nr = sensor_attr->index;667 struct adm1026_data *data = adm1026_update_device(dev);668 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],669 data->fan_div[nr]));670}671static ssize_t fan_min_store(struct device *dev,672 struct device_attribute *attr, const char *buf,673 size_t count)674{675 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);676 int nr = sensor_attr->index;677 struct adm1026_data *data = dev_get_drvdata(dev);678 struct i2c_client *client = data->client;679 long val;680 int err;681 682 err = kstrtol(buf, 10, &val);683 if (err)684 return err;685 686 mutex_lock(&data->update_lock);687 data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]);688 adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr),689 data->fan_min[nr]);690 mutex_unlock(&data->update_lock);691 return count;692}693 694static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, 0);695static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0);696static SENSOR_DEVICE_ATTR_RO(fan2_input, fan, 1);697static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1);698static SENSOR_DEVICE_ATTR_RO(fan3_input, fan, 2);699static SENSOR_DEVICE_ATTR_RW(fan3_min, fan_min, 2);700static SENSOR_DEVICE_ATTR_RO(fan4_input, fan, 3);701static SENSOR_DEVICE_ATTR_RW(fan4_min, fan_min, 3);702static SENSOR_DEVICE_ATTR_RO(fan5_input, fan, 4);703static SENSOR_DEVICE_ATTR_RW(fan5_min, fan_min, 4);704static SENSOR_DEVICE_ATTR_RO(fan6_input, fan, 5);705static SENSOR_DEVICE_ATTR_RW(fan6_min, fan_min, 5);706static SENSOR_DEVICE_ATTR_RO(fan7_input, fan, 6);707static SENSOR_DEVICE_ATTR_RW(fan7_min, fan_min, 6);708static SENSOR_DEVICE_ATTR_RO(fan8_input, fan, 7);709static SENSOR_DEVICE_ATTR_RW(fan8_min, fan_min, 7);710 711/* Adjust fan_min to account for new fan divisor */712static void fixup_fan_min(struct device *dev, int fan, int old_div)713{714 struct adm1026_data *data = dev_get_drvdata(dev);715 struct i2c_client *client = data->client;716 int new_min;717 int new_div = data->fan_div[fan];718 719 /* 0 and 0xff are special. Don't adjust them */720 if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff)721 return;722 723 new_min = data->fan_min[fan] * old_div / new_div;724 new_min = clamp_val(new_min, 1, 254);725 data->fan_min[fan] = new_min;726 adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min);727}728 729/* Now add fan_div read/write functions */730static ssize_t fan_div_show(struct device *dev, struct device_attribute *attr,731 char *buf)732{733 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);734 int nr = sensor_attr->index;735 struct adm1026_data *data = adm1026_update_device(dev);736 return sprintf(buf, "%d\n", data->fan_div[nr]);737}738static ssize_t fan_div_store(struct device *dev,739 struct device_attribute *attr, const char *buf,740 size_t count)741{742 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);743 int nr = sensor_attr->index;744 struct adm1026_data *data = dev_get_drvdata(dev);745 struct i2c_client *client = data->client;746 long val;747 int orig_div, new_div;748 int err;749 750 err = kstrtol(buf, 10, &val);751 if (err)752 return err;753 754 new_div = DIV_TO_REG(val);755 756 mutex_lock(&data->update_lock);757 orig_div = data->fan_div[nr];758 data->fan_div[nr] = DIV_FROM_REG(new_div);759 760 if (nr < 4) { /* 0 <= nr < 4 */761 adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3,762 (DIV_TO_REG(data->fan_div[0]) << 0) |763 (DIV_TO_REG(data->fan_div[1]) << 2) |764 (DIV_TO_REG(data->fan_div[2]) << 4) |765 (DIV_TO_REG(data->fan_div[3]) << 6));766 } else { /* 3 < nr < 8 */767 adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7,768 (DIV_TO_REG(data->fan_div[4]) << 0) |769 (DIV_TO_REG(data->fan_div[5]) << 2) |770 (DIV_TO_REG(data->fan_div[6]) << 4) |771 (DIV_TO_REG(data->fan_div[7]) << 6));772 }773 774 if (data->fan_div[nr] != orig_div)775 fixup_fan_min(dev, nr, orig_div);776 777 mutex_unlock(&data->update_lock);778 return count;779}780 781static SENSOR_DEVICE_ATTR_RW(fan1_div, fan_div, 0);782static SENSOR_DEVICE_ATTR_RW(fan2_div, fan_div, 1);783static SENSOR_DEVICE_ATTR_RW(fan3_div, fan_div, 2);784static SENSOR_DEVICE_ATTR_RW(fan4_div, fan_div, 3);785static SENSOR_DEVICE_ATTR_RW(fan5_div, fan_div, 4);786static SENSOR_DEVICE_ATTR_RW(fan6_div, fan_div, 5);787static SENSOR_DEVICE_ATTR_RW(fan7_div, fan_div, 6);788static SENSOR_DEVICE_ATTR_RW(fan8_div, fan_div, 7);789 790/* Temps */791static ssize_t temp_show(struct device *dev, struct device_attribute *attr,792 char *buf)793{794 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);795 int nr = sensor_attr->index;796 struct adm1026_data *data = adm1026_update_device(dev);797 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));798}799static ssize_t temp_min_show(struct device *dev,800 struct device_attribute *attr, char *buf)801{802 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);803 int nr = sensor_attr->index;804 struct adm1026_data *data = adm1026_update_device(dev);805 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));806}807static ssize_t temp_min_store(struct device *dev,808 struct device_attribute *attr, const char *buf,809 size_t count)810{811 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);812 int nr = sensor_attr->index;813 struct adm1026_data *data = dev_get_drvdata(dev);814 struct i2c_client *client = data->client;815 long val;816 int err;817 818 err = kstrtol(buf, 10, &val);819 if (err)820 return err;821 822 mutex_lock(&data->update_lock);823 data->temp_min[nr] = TEMP_TO_REG(val);824 adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr],825 data->temp_min[nr]);826 mutex_unlock(&data->update_lock);827 return count;828}829static ssize_t temp_max_show(struct device *dev,830 struct device_attribute *attr, char *buf)831{832 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);833 int nr = sensor_attr->index;834 struct adm1026_data *data = adm1026_update_device(dev);835 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));836}837static ssize_t temp_max_store(struct device *dev,838 struct device_attribute *attr, const char *buf,839 size_t count)840{841 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);842 int nr = sensor_attr->index;843 struct adm1026_data *data = dev_get_drvdata(dev);844 struct i2c_client *client = data->client;845 long val;846 int err;847 848 err = kstrtol(buf, 10, &val);849 if (err)850 return err;851 852 mutex_lock(&data->update_lock);853 data->temp_max[nr] = TEMP_TO_REG(val);854 adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr],855 data->temp_max[nr]);856 mutex_unlock(&data->update_lock);857 return count;858}859 860static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0);861static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0);862static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0);863static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1);864static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1);865static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1);866static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2);867static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_min, 2);868static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2);869 870static ssize_t temp_offset_show(struct device *dev,871 struct device_attribute *attr, char *buf)872{873 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);874 int nr = sensor_attr->index;875 struct adm1026_data *data = adm1026_update_device(dev);876 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr]));877}878static ssize_t temp_offset_store(struct device *dev,879 struct device_attribute *attr,880 const char *buf, size_t count)881{882 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);883 int nr = sensor_attr->index;884 struct adm1026_data *data = dev_get_drvdata(dev);885 struct i2c_client *client = data->client;886 long val;887 int err;888 889 err = kstrtol(buf, 10, &val);890 if (err)891 return err;892 893 mutex_lock(&data->update_lock);894 data->temp_offset[nr] = TEMP_TO_REG(val);895 adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr],896 data->temp_offset[nr]);897 mutex_unlock(&data->update_lock);898 return count;899}900 901static SENSOR_DEVICE_ATTR_RW(temp1_offset, temp_offset, 0);902static SENSOR_DEVICE_ATTR_RW(temp2_offset, temp_offset, 1);903static SENSOR_DEVICE_ATTR_RW(temp3_offset, temp_offset, 2);904 905static ssize_t temp_auto_point1_temp_hyst_show(struct device *dev,906 struct device_attribute *attr,907 char *buf)908{909 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);910 int nr = sensor_attr->index;911 struct adm1026_data *data = adm1026_update_device(dev);912 return sprintf(buf, "%d\n", TEMP_FROM_REG(913 ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr]));914}915static ssize_t temp_auto_point2_temp_show(struct device *dev,916 struct device_attribute *attr,917 char *buf)918{919 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);920 int nr = sensor_attr->index;921 struct adm1026_data *data = adm1026_update_device(dev);922 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr] +923 ADM1026_FAN_CONTROL_TEMP_RANGE));924}925static ssize_t temp_auto_point1_temp_show(struct device *dev,926 struct device_attribute *attr,927 char *buf)928{929 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);930 int nr = sensor_attr->index;931 struct adm1026_data *data = adm1026_update_device(dev);932 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr]));933}934static ssize_t temp_auto_point1_temp_store(struct device *dev,935 struct device_attribute *attr,936 const char *buf, size_t count)937{938 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);939 int nr = sensor_attr->index;940 struct adm1026_data *data = dev_get_drvdata(dev);941 struct i2c_client *client = data->client;942 long val;943 int err;944 945 err = kstrtol(buf, 10, &val);946 if (err)947 return err;948 949 mutex_lock(&data->update_lock);950 data->temp_tmin[nr] = TEMP_TO_REG(val);951 adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr],952 data->temp_tmin[nr]);953 mutex_unlock(&data->update_lock);954 return count;955}956 957static SENSOR_DEVICE_ATTR_RW(temp1_auto_point1_temp, temp_auto_point1_temp, 0);958static SENSOR_DEVICE_ATTR_RO(temp1_auto_point1_temp_hyst,959 temp_auto_point1_temp_hyst, 0);960static SENSOR_DEVICE_ATTR_RO(temp1_auto_point2_temp, temp_auto_point2_temp, 0);961static SENSOR_DEVICE_ATTR_RW(temp2_auto_point1_temp, temp_auto_point1_temp, 1);962static SENSOR_DEVICE_ATTR_RO(temp2_auto_point1_temp_hyst,963 temp_auto_point1_temp_hyst, 1);964static SENSOR_DEVICE_ATTR_RO(temp2_auto_point2_temp, temp_auto_point2_temp, 1);965static SENSOR_DEVICE_ATTR_RW(temp3_auto_point1_temp, temp_auto_point1_temp, 2);966static SENSOR_DEVICE_ATTR_RO(temp3_auto_point1_temp_hyst,967 temp_auto_point1_temp_hyst, 2);968static SENSOR_DEVICE_ATTR_RO(temp3_auto_point2_temp, temp_auto_point2_temp, 2);969 970static ssize_t show_temp_crit_enable(struct device *dev,971 struct device_attribute *attr, char *buf)972{973 struct adm1026_data *data = adm1026_update_device(dev);974 return sprintf(buf, "%d\n", (data->config1 & CFG1_THERM_HOT) >> 4);975}976static ssize_t set_temp_crit_enable(struct device *dev,977 struct device_attribute *attr, const char *buf, size_t count)978{979 struct adm1026_data *data = dev_get_drvdata(dev);980 struct i2c_client *client = data->client;981 unsigned long val;982 int err;983 984 err = kstrtoul(buf, 10, &val);985 if (err)986 return err;987 988 if (val > 1)989 return -EINVAL;990 991 mutex_lock(&data->update_lock);992 data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4);993 adm1026_write_value(client, ADM1026_REG_CONFIG1, data->config1);994 mutex_unlock(&data->update_lock);995 996 return count;997}998 999static DEVICE_ATTR(temp1_crit_enable, 0644, show_temp_crit_enable,1000 set_temp_crit_enable);1001static DEVICE_ATTR(temp2_crit_enable, 0644, show_temp_crit_enable,1002 set_temp_crit_enable);1003static DEVICE_ATTR(temp3_crit_enable, 0644, show_temp_crit_enable,1004 set_temp_crit_enable);1005 1006static ssize_t temp_crit_show(struct device *dev,1007 struct device_attribute *attr, char *buf)1008{1009 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);1010 int nr = sensor_attr->index;1011 struct adm1026_data *data = adm1026_update_device(dev);1012 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr]));1013}1014static ssize_t temp_crit_store(struct device *dev,1015 struct device_attribute *attr, const char *buf,1016 size_t count)1017{1018 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);1019 int nr = sensor_attr->index;1020 struct adm1026_data *data = dev_get_drvdata(dev);1021 struct i2c_client *client = data->client;1022 long val;1023 int err;1024 1025 err = kstrtol(buf, 10, &val);1026 if (err)1027 return err;1028 1029 mutex_lock(&data->update_lock);1030 data->temp_crit[nr] = TEMP_TO_REG(val);1031 adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr],1032 data->temp_crit[nr]);1033 mutex_unlock(&data->update_lock);1034 return count;1035}1036 1037static SENSOR_DEVICE_ATTR_RW(temp1_crit, temp_crit, 0);1038static SENSOR_DEVICE_ATTR_RW(temp2_crit, temp_crit, 1);1039static SENSOR_DEVICE_ATTR_RW(temp3_crit, temp_crit, 2);1040 1041static ssize_t analog_out_show(struct device *dev,1042 struct device_attribute *attr, char *buf)1043{1044 struct adm1026_data *data = adm1026_update_device(dev);1045 return sprintf(buf, "%d\n", DAC_FROM_REG(data->analog_out));1046}1047static ssize_t analog_out_store(struct device *dev,1048 struct device_attribute *attr,1049 const char *buf, size_t count)1050{1051 struct adm1026_data *data = dev_get_drvdata(dev);1052 struct i2c_client *client = data->client;1053 long val;1054 int err;1055 1056 err = kstrtol(buf, 10, &val);1057 if (err)1058 return err;1059 1060 mutex_lock(&data->update_lock);1061 data->analog_out = DAC_TO_REG(val);1062 adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out);1063 mutex_unlock(&data->update_lock);1064 return count;1065}1066 1067static DEVICE_ATTR_RW(analog_out);1068 1069static ssize_t cpu0_vid_show(struct device *dev,1070 struct device_attribute *attr, char *buf)1071{1072 struct adm1026_data *data = adm1026_update_device(dev);1073 int vid = (data->gpio >> 11) & 0x1f;1074 1075 dev_dbg(dev, "Setting VID from GPIO11-15.\n");1076 return sprintf(buf, "%d\n", vid_from_reg(vid, data->vrm));1077}1078 1079static DEVICE_ATTR_RO(cpu0_vid);1080 1081static ssize_t vrm_show(struct device *dev, struct device_attribute *attr,1082 char *buf)1083{1084 struct adm1026_data *data = dev_get_drvdata(dev);1085 return sprintf(buf, "%d\n", data->vrm);1086}1087 1088static ssize_t vrm_store(struct device *dev, struct device_attribute *attr,1089 const char *buf, size_t count)1090{1091 struct adm1026_data *data = dev_get_drvdata(dev);1092 unsigned long val;1093 int err;1094 1095 err = kstrtoul(buf, 10, &val);1096 if (err)1097 return err;1098 1099 if (val > 255)1100 return -EINVAL;1101 1102 data->vrm = val;1103 return count;1104}1105 1106static DEVICE_ATTR_RW(vrm);1107 1108static ssize_t alarms_show(struct device *dev, struct device_attribute *attr,1109 char *buf)1110{1111 struct adm1026_data *data = adm1026_update_device(dev);1112 return sprintf(buf, "%ld\n", data->alarms);1113}1114 1115static DEVICE_ATTR_RO(alarms);1116 1117static ssize_t alarm_show(struct device *dev, struct device_attribute *attr,1118 char *buf)1119{1120 struct adm1026_data *data = adm1026_update_device(dev);1121 int bitnr = to_sensor_dev_attr(attr)->index;1122 return sprintf(buf, "%ld\n", (data->alarms >> bitnr) & 1);1123}1124 1125static SENSOR_DEVICE_ATTR_RO(temp2_alarm, alarm, 0);1126static SENSOR_DEVICE_ATTR_RO(temp3_alarm, alarm, 1);1127static SENSOR_DEVICE_ATTR_RO(in9_alarm, alarm, 1);1128static SENSOR_DEVICE_ATTR_RO(in11_alarm, alarm, 2);1129static SENSOR_DEVICE_ATTR_RO(in12_alarm, alarm, 3);1130static SENSOR_DEVICE_ATTR_RO(in13_alarm, alarm, 4);1131static SENSOR_DEVICE_ATTR_RO(in14_alarm, alarm, 5);1132static SENSOR_DEVICE_ATTR_RO(in15_alarm, alarm, 6);1133static SENSOR_DEVICE_ATTR_RO(in16_alarm, alarm, 7);1134static SENSOR_DEVICE_ATTR_RO(in0_alarm, alarm, 8);1135static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, 9);1136static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, 10);1137static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, 11);1138static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, 12);1139static SENSOR_DEVICE_ATTR_RO(in5_alarm, alarm, 13);1140static SENSOR_DEVICE_ATTR_RO(in6_alarm, alarm, 14);1141static SENSOR_DEVICE_ATTR_RO(in7_alarm, alarm, 15);1142static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, 16);1143static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, 17);1144static SENSOR_DEVICE_ATTR_RO(fan3_alarm, alarm, 18);1145static SENSOR_DEVICE_ATTR_RO(fan4_alarm, alarm, 19);1146static SENSOR_DEVICE_ATTR_RO(fan5_alarm, alarm, 20);1147static SENSOR_DEVICE_ATTR_RO(fan6_alarm, alarm, 21);1148static SENSOR_DEVICE_ATTR_RO(fan7_alarm, alarm, 22);1149static SENSOR_DEVICE_ATTR_RO(fan8_alarm, alarm, 23);1150static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, 24);1151static SENSOR_DEVICE_ATTR_RO(in10_alarm, alarm, 25);1152static SENSOR_DEVICE_ATTR_RO(in8_alarm, alarm, 26);1153 1154static ssize_t alarm_mask_show(struct device *dev,1155 struct device_attribute *attr, char *buf)1156{1157 struct adm1026_data *data = adm1026_update_device(dev);1158 return sprintf(buf, "%ld\n", data->alarm_mask);1159}1160static ssize_t alarm_mask_store(struct device *dev,1161 struct device_attribute *attr,1162 const char *buf, size_t count)1163{1164 struct adm1026_data *data = dev_get_drvdata(dev);1165 struct i2c_client *client = data->client;1166 unsigned long mask;1167 long val;1168 int err;1169 1170 err = kstrtol(buf, 10, &val);1171 if (err)1172 return err;1173 1174 mutex_lock(&data->update_lock);1175 data->alarm_mask = val & 0x7fffffff;1176 mask = data->alarm_mask1177 | (data->gpio_mask & 0x10000 ? 0x80000000 : 0);1178 adm1026_write_value(client, ADM1026_REG_MASK1,1179 mask & 0xff);1180 mask >>= 8;1181 adm1026_write_value(client, ADM1026_REG_MASK2,1182 mask & 0xff);1183 mask >>= 8;1184 adm1026_write_value(client, ADM1026_REG_MASK3,1185 mask & 0xff);1186 mask >>= 8;1187 adm1026_write_value(client, ADM1026_REG_MASK4,1188 mask & 0xff);1189 mutex_unlock(&data->update_lock);1190 return count;1191}1192 1193static DEVICE_ATTR_RW(alarm_mask);1194 1195static ssize_t gpio_show(struct device *dev, struct device_attribute *attr,1196 char *buf)1197{1198 struct adm1026_data *data = adm1026_update_device(dev);1199 return sprintf(buf, "%ld\n", data->gpio);1200}1201static ssize_t gpio_store(struct device *dev, struct device_attribute *attr,1202 const char *buf, size_t count)1203{1204 struct adm1026_data *data = dev_get_drvdata(dev);1205 struct i2c_client *client = data->client;1206 long gpio;1207 long val;1208 int err;1209 1210 err = kstrtol(buf, 10, &val);1211 if (err)1212 return err;1213 1214 mutex_lock(&data->update_lock);1215 data->gpio = val & 0x1ffff;1216 gpio = data->gpio;1217 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7, gpio & 0xff);1218 gpio >>= 8;1219 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15, gpio & 0xff);1220 gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f);1221 adm1026_write_value(client, ADM1026_REG_STATUS4, gpio & 0xff);1222 mutex_unlock(&data->update_lock);1223 return count;1224}1225 1226static DEVICE_ATTR_RW(gpio);1227 1228static ssize_t gpio_mask_show(struct device *dev,1229 struct device_attribute *attr,1230 char *buf)1231{1232 struct adm1026_data *data = adm1026_update_device(dev);1233 return sprintf(buf, "%ld\n", data->gpio_mask);1234}1235static ssize_t gpio_mask_store(struct device *dev,1236 struct device_attribute *attr, const char *buf,1237 size_t count)1238{1239 struct adm1026_data *data = dev_get_drvdata(dev);1240 struct i2c_client *client = data->client;1241 long mask;1242 long val;1243 int err;1244 1245 err = kstrtol(buf, 10, &val);1246 if (err)1247 return err;1248 1249 mutex_lock(&data->update_lock);1250 data->gpio_mask = val & 0x1ffff;1251 mask = data->gpio_mask;1252 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7, mask & 0xff);1253 mask >>= 8;1254 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15, mask & 0xff);1255 mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f);1256 adm1026_write_value(client, ADM1026_REG_MASK1, mask & 0xff);1257 mutex_unlock(&data->update_lock);1258 return count;1259}1260 1261static DEVICE_ATTR_RW(gpio_mask);1262 1263static ssize_t pwm1_show(struct device *dev, struct device_attribute *attr,1264 char *buf)1265{1266 struct adm1026_data *data = adm1026_update_device(dev);1267 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm1.pwm));1268}1269 1270static ssize_t pwm1_store(struct device *dev, struct device_attribute *attr,1271 const char *buf, size_t count)1272{1273 struct adm1026_data *data = dev_get_drvdata(dev);1274 struct i2c_client *client = data->client;1275 1276 if (data->pwm1.enable == 1) {1277 long val;1278 int err;1279 1280 err = kstrtol(buf, 10, &val);1281 if (err)1282 return err;1283 1284 mutex_lock(&data->update_lock);1285 data->pwm1.pwm = PWM_TO_REG(val);1286 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);1287 mutex_unlock(&data->update_lock);1288 }1289 return count;1290}1291 1292static ssize_t temp1_auto_point1_pwm_show(struct device *dev,1293 struct device_attribute *attr,1294 char *buf)1295{1296 struct adm1026_data *data = adm1026_update_device(dev);1297 return sprintf(buf, "%d\n", data->pwm1.auto_pwm_min);1298}1299 1300static ssize_t temp1_auto_point1_pwm_store(struct device *dev,1301 struct device_attribute *attr,1302 const char *buf, size_t count)1303{1304 struct adm1026_data *data = dev_get_drvdata(dev);1305 struct i2c_client *client = data->client;1306 unsigned long val;1307 int err;1308 1309 err = kstrtoul(buf, 10, &val);1310 if (err)1311 return err;1312 1313 mutex_lock(&data->update_lock);1314 data->pwm1.auto_pwm_min = clamp_val(val, 0, 255);1315 if (data->pwm1.enable == 2) { /* apply immediately */1316 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |1317 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));1318 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);1319 }1320 mutex_unlock(&data->update_lock);1321 return count;1322}1323 1324static ssize_t temp1_auto_point2_pwm_show(struct device *dev,1325 struct device_attribute *attr,1326 char *buf)1327{1328 return sprintf(buf, "%d\n", ADM1026_PWM_MAX);1329}1330 1331static ssize_t pwm1_enable_show(struct device *dev,1332 struct device_attribute *attr, char *buf)1333{1334 struct adm1026_data *data = adm1026_update_device(dev);1335 return sprintf(buf, "%d\n", data->pwm1.enable);1336}1337 1338static ssize_t pwm1_enable_store(struct device *dev,1339 struct device_attribute *attr,1340 const char *buf, size_t count)1341{1342 struct adm1026_data *data = dev_get_drvdata(dev);1343 struct i2c_client *client = data->client;1344 int old_enable;1345 unsigned long val;1346 int err;1347 1348 err = kstrtoul(buf, 10, &val);1349 if (err)1350 return err;1351 1352 if (val >= 3)1353 return -EINVAL;1354 1355 mutex_lock(&data->update_lock);1356 old_enable = data->pwm1.enable;1357 data->pwm1.enable = val;1358 data->config1 = (data->config1 & ~CFG1_PWM_AFC)1359 | ((val == 2) ? CFG1_PWM_AFC : 0);1360 adm1026_write_value(client, ADM1026_REG_CONFIG1, data->config1);1361 if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */1362 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |1363 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));1364 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);1365 } else if (!((old_enable == 1) && (val == 1))) {1366 /* set pwm to safe value */1367 data->pwm1.pwm = 255;1368 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);1369 }1370 mutex_unlock(&data->update_lock);1371 1372 return count;1373}1374 1375/* enable PWM fan control */1376static DEVICE_ATTR_RW(pwm1);1377static DEVICE_ATTR(pwm2, 0644, pwm1_show, pwm1_store);1378static DEVICE_ATTR(pwm3, 0644, pwm1_show, pwm1_store);1379static DEVICE_ATTR_RW(pwm1_enable);1380static DEVICE_ATTR(pwm2_enable, 0644, pwm1_enable_show,1381 pwm1_enable_store);1382static DEVICE_ATTR(pwm3_enable, 0644, pwm1_enable_show,1383 pwm1_enable_store);1384static DEVICE_ATTR_RW(temp1_auto_point1_pwm);1385static DEVICE_ATTR(temp2_auto_point1_pwm, 0644,1386 temp1_auto_point1_pwm_show, temp1_auto_point1_pwm_store);1387static DEVICE_ATTR(temp3_auto_point1_pwm, 0644,1388 temp1_auto_point1_pwm_show, temp1_auto_point1_pwm_store);1389 1390static DEVICE_ATTR_RO(temp1_auto_point2_pwm);1391static DEVICE_ATTR(temp2_auto_point2_pwm, 0444, temp1_auto_point2_pwm_show,1392 NULL);1393static DEVICE_ATTR(temp3_auto_point2_pwm, 0444, temp1_auto_point2_pwm_show,1394 NULL);1395 1396static struct attribute *adm1026_attributes[] = {1397 &sensor_dev_attr_in0_input.dev_attr.attr,1398 &sensor_dev_attr_in0_max.dev_attr.attr,1399 &sensor_dev_attr_in0_min.dev_attr.attr,1400 &sensor_dev_attr_in0_alarm.dev_attr.attr,1401 &sensor_dev_attr_in1_input.dev_attr.attr,1402 &sensor_dev_attr_in1_max.dev_attr.attr,1403 &sensor_dev_attr_in1_min.dev_attr.attr,1404 &sensor_dev_attr_in1_alarm.dev_attr.attr,1405 &sensor_dev_attr_in2_input.dev_attr.attr,1406 &sensor_dev_attr_in2_max.dev_attr.attr,1407 &sensor_dev_attr_in2_min.dev_attr.attr,1408 &sensor_dev_attr_in2_alarm.dev_attr.attr,1409 &sensor_dev_attr_in3_input.dev_attr.attr,1410 &sensor_dev_attr_in3_max.dev_attr.attr,1411 &sensor_dev_attr_in3_min.dev_attr.attr,1412 &sensor_dev_attr_in3_alarm.dev_attr.attr,1413 &sensor_dev_attr_in4_input.dev_attr.attr,1414 &sensor_dev_attr_in4_max.dev_attr.attr,1415 &sensor_dev_attr_in4_min.dev_attr.attr,1416 &sensor_dev_attr_in4_alarm.dev_attr.attr,1417 &sensor_dev_attr_in5_input.dev_attr.attr,1418 &sensor_dev_attr_in5_max.dev_attr.attr,1419 &sensor_dev_attr_in5_min.dev_attr.attr,1420 &sensor_dev_attr_in5_alarm.dev_attr.attr,1421 &sensor_dev_attr_in6_input.dev_attr.attr,1422 &sensor_dev_attr_in6_max.dev_attr.attr,1423 &sensor_dev_attr_in6_min.dev_attr.attr,1424 &sensor_dev_attr_in6_alarm.dev_attr.attr,1425 &sensor_dev_attr_in7_input.dev_attr.attr,1426 &sensor_dev_attr_in7_max.dev_attr.attr,1427 &sensor_dev_attr_in7_min.dev_attr.attr,1428 &sensor_dev_attr_in7_alarm.dev_attr.attr,1429 &sensor_dev_attr_in10_input.dev_attr.attr,1430 &sensor_dev_attr_in10_max.dev_attr.attr,1431 &sensor_dev_attr_in10_min.dev_attr.attr,1432 &sensor_dev_attr_in10_alarm.dev_attr.attr,1433 &sensor_dev_attr_in11_input.dev_attr.attr,1434 &sensor_dev_attr_in11_max.dev_attr.attr,1435 &sensor_dev_attr_in11_min.dev_attr.attr,1436 &sensor_dev_attr_in11_alarm.dev_attr.attr,1437 &sensor_dev_attr_in12_input.dev_attr.attr,1438 &sensor_dev_attr_in12_max.dev_attr.attr,1439 &sensor_dev_attr_in12_min.dev_attr.attr,1440 &sensor_dev_attr_in12_alarm.dev_attr.attr,1441 &sensor_dev_attr_in13_input.dev_attr.attr,1442 &sensor_dev_attr_in13_max.dev_attr.attr,1443 &sensor_dev_attr_in13_min.dev_attr.attr,1444 &sensor_dev_attr_in13_alarm.dev_attr.attr,1445 &sensor_dev_attr_in14_input.dev_attr.attr,1446 &sensor_dev_attr_in14_max.dev_attr.attr,1447 &sensor_dev_attr_in14_min.dev_attr.attr,1448 &sensor_dev_attr_in14_alarm.dev_attr.attr,1449 &sensor_dev_attr_in15_input.dev_attr.attr,1450 &sensor_dev_attr_in15_max.dev_attr.attr,1451 &sensor_dev_attr_in15_min.dev_attr.attr,1452 &sensor_dev_attr_in15_alarm.dev_attr.attr,1453 &sensor_dev_attr_in16_input.dev_attr.attr,1454 &sensor_dev_attr_in16_max.dev_attr.attr,1455 &sensor_dev_attr_in16_min.dev_attr.attr,1456 &sensor_dev_attr_in16_alarm.dev_attr.attr,1457 &sensor_dev_attr_fan1_input.dev_attr.attr,1458 &sensor_dev_attr_fan1_div.dev_attr.attr,1459 &sensor_dev_attr_fan1_min.dev_attr.attr,1460 &sensor_dev_attr_fan1_alarm.dev_attr.attr,1461 &sensor_dev_attr_fan2_input.dev_attr.attr,1462 &sensor_dev_attr_fan2_div.dev_attr.attr,1463 &sensor_dev_attr_fan2_min.dev_attr.attr,1464 &sensor_dev_attr_fan2_alarm.dev_attr.attr,1465 &sensor_dev_attr_fan3_input.dev_attr.attr,1466 &sensor_dev_attr_fan3_div.dev_attr.attr,1467 &sensor_dev_attr_fan3_min.dev_attr.attr,1468 &sensor_dev_attr_fan3_alarm.dev_attr.attr,1469 &sensor_dev_attr_fan4_input.dev_attr.attr,1470 &sensor_dev_attr_fan4_div.dev_attr.attr,1471 &sensor_dev_attr_fan4_min.dev_attr.attr,1472 &sensor_dev_attr_fan4_alarm.dev_attr.attr,1473 &sensor_dev_attr_fan5_input.dev_attr.attr,1474 &sensor_dev_attr_fan5_div.dev_attr.attr,1475 &sensor_dev_attr_fan5_min.dev_attr.attr,1476 &sensor_dev_attr_fan5_alarm.dev_attr.attr,1477 &sensor_dev_attr_fan6_input.dev_attr.attr,1478 &sensor_dev_attr_fan6_div.dev_attr.attr,1479 &sensor_dev_attr_fan6_min.dev_attr.attr,1480 &sensor_dev_attr_fan6_alarm.dev_attr.attr,1481 &sensor_dev_attr_fan7_input.dev_attr.attr,1482 &sensor_dev_attr_fan7_div.dev_attr.attr,1483 &sensor_dev_attr_fan7_min.dev_attr.attr,1484 &sensor_dev_attr_fan7_alarm.dev_attr.attr,1485 &sensor_dev_attr_fan8_input.dev_attr.attr,1486 &sensor_dev_attr_fan8_div.dev_attr.attr,1487 &sensor_dev_attr_fan8_min.dev_attr.attr,1488 &sensor_dev_attr_fan8_alarm.dev_attr.attr,1489 &sensor_dev_attr_temp1_input.dev_attr.attr,1490 &sensor_dev_attr_temp1_max.dev_attr.attr,1491 &sensor_dev_attr_temp1_min.dev_attr.attr,1492 &sensor_dev_attr_temp1_alarm.dev_attr.attr,1493 &sensor_dev_attr_temp2_input.dev_attr.attr,1494 &sensor_dev_attr_temp2_max.dev_attr.attr,1495 &sensor_dev_attr_temp2_min.dev_attr.attr,1496 &sensor_dev_attr_temp2_alarm.dev_attr.attr,1497 &sensor_dev_attr_temp1_offset.dev_attr.attr,1498 &sensor_dev_attr_temp2_offset.dev_attr.attr,1499 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,1500 &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr,1501 &sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr.attr,1502 &sensor_dev_attr_temp2_auto_point1_temp_hyst.dev_attr.attr,1503 &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr,1504 &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr,1505 &sensor_dev_attr_temp1_crit.dev_attr.attr,1506 &sensor_dev_attr_temp2_crit.dev_attr.attr,1507 &dev_attr_temp1_crit_enable.attr,1508 &dev_attr_temp2_crit_enable.attr,1509 &dev_attr_cpu0_vid.attr,1510 &dev_attr_vrm.attr,1511 &dev_attr_alarms.attr,1512 &dev_attr_alarm_mask.attr,1513 &dev_attr_gpio.attr,1514 &dev_attr_gpio_mask.attr,1515 &dev_attr_pwm1.attr,1516 &dev_attr_pwm2.attr,1517 &dev_attr_pwm3.attr,1518 &dev_attr_pwm1_enable.attr,1519 &dev_attr_pwm2_enable.attr,1520 &dev_attr_pwm3_enable.attr,1521 &dev_attr_temp1_auto_point1_pwm.attr,1522 &dev_attr_temp2_auto_point1_pwm.attr,1523 &dev_attr_temp1_auto_point2_pwm.attr,1524 &dev_attr_temp2_auto_point2_pwm.attr,1525 &dev_attr_analog_out.attr,1526 NULL1527};1528 1529static const struct attribute_group adm1026_group = {1530 .attrs = adm1026_attributes,1531};1532 1533static struct attribute *adm1026_attributes_temp3[] = {1534 &sensor_dev_attr_temp3_input.dev_attr.attr,1535 &sensor_dev_attr_temp3_max.dev_attr.attr,1536 &sensor_dev_attr_temp3_min.dev_attr.attr,1537 &sensor_dev_attr_temp3_alarm.dev_attr.attr,1538 &sensor_dev_attr_temp3_offset.dev_attr.attr,1539 &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr,1540 &sensor_dev_attr_temp3_auto_point1_temp_hyst.dev_attr.attr,1541 &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr,1542 &sensor_dev_attr_temp3_crit.dev_attr.attr,1543 &dev_attr_temp3_crit_enable.attr,1544 &dev_attr_temp3_auto_point1_pwm.attr,1545 &dev_attr_temp3_auto_point2_pwm.attr,1546 NULL1547};1548 1549static const struct attribute_group adm1026_group_temp3 = {1550 .attrs = adm1026_attributes_temp3,1551};1552 1553static struct attribute *adm1026_attributes_in8_9[] = {1554 &sensor_dev_attr_in8_input.dev_attr.attr,1555 &sensor_dev_attr_in8_max.dev_attr.attr,1556 &sensor_dev_attr_in8_min.dev_attr.attr,1557 &sensor_dev_attr_in8_alarm.dev_attr.attr,1558 &sensor_dev_attr_in9_input.dev_attr.attr,1559 &sensor_dev_attr_in9_max.dev_attr.attr,1560 &sensor_dev_attr_in9_min.dev_attr.attr,1561 &sensor_dev_attr_in9_alarm.dev_attr.attr,1562 NULL1563};1564 1565static const struct attribute_group adm1026_group_in8_9 = {1566 .attrs = adm1026_attributes_in8_9,1567};1568 1569/* Return 0 if detection is successful, -ENODEV otherwise */1570static int adm1026_detect(struct i2c_client *client,1571 struct i2c_board_info *info)1572{1573 struct i2c_adapter *adapter = client->adapter;1574 int address = client->addr;1575 int company, verstep;1576 1577 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {1578 /* We need to be able to do byte I/O */1579 return -ENODEV;1580 }1581 1582 /* Now, we do the remaining detection. */1583 1584 company = adm1026_read_value(client, ADM1026_REG_COMPANY);1585 verstep = adm1026_read_value(client, ADM1026_REG_VERSTEP);1586 1587 dev_dbg(&adapter->dev,1588 "Detecting device at %d,0x%02x with COMPANY: 0x%02x and VERSTEP: 0x%02x\n",1589 i2c_adapter_id(client->adapter), client->addr,1590 company, verstep);1591 1592 /* Determine the chip type. */1593 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x...\n",1594 i2c_adapter_id(adapter), address);1595 if (company == ADM1026_COMPANY_ANALOG_DEV1596 && verstep == ADM1026_VERSTEP_ADM1026) {1597 /* Analog Devices ADM1026 */1598 } else if (company == ADM1026_COMPANY_ANALOG_DEV1599 && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {1600 dev_err(&adapter->dev,1601 "Unrecognized stepping 0x%02x. Defaulting to ADM1026.\n",1602 verstep);1603 } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {1604 dev_err(&adapter->dev,1605 "Found version/stepping 0x%02x. Assuming generic ADM1026.\n",1606 verstep);1607 } else {1608 dev_dbg(&adapter->dev, "Autodetection failed\n");1609 /* Not an ADM1026... */1610 return -ENODEV;1611 }1612 1613 strscpy(info->type, "adm1026", I2C_NAME_SIZE);1614 1615 return 0;1616}1617 1618static void adm1026_print_gpio(struct i2c_client *client)1619{1620 struct adm1026_data *data = i2c_get_clientdata(client);1621 int i;1622 1623 dev_dbg(&client->dev, "GPIO config is:\n");1624 for (i = 0; i <= 7; ++i) {1625 if (data->config2 & (1 << i)) {1626 dev_dbg(&client->dev, "\t%sGP%s%d\n",1627 data->gpio_config[i] & 0x02 ? "" : "!",1628 data->gpio_config[i] & 0x01 ? "OUT" : "IN",1629 i);1630 } else {1631 dev_dbg(&client->dev, "\tFAN%d\n", i);1632 }1633 }1634 for (i = 8; i <= 15; ++i) {1635 dev_dbg(&client->dev, "\t%sGP%s%d\n",1636 data->gpio_config[i] & 0x02 ? "" : "!",1637 data->gpio_config[i] & 0x01 ? "OUT" : "IN",1638 i);1639 }1640 if (data->config3 & CFG3_GPIO16_ENABLE) {1641 dev_dbg(&client->dev, "\t%sGP%s16\n",1642 data->gpio_config[16] & 0x02 ? "" : "!",1643 data->gpio_config[16] & 0x01 ? "OUT" : "IN");1644 } else {1645 /* GPIO16 is THERM */1646 dev_dbg(&client->dev, "\tTHERM\n");1647 }1648}1649 1650static void adm1026_fixup_gpio(struct i2c_client *client)1651{1652 struct adm1026_data *data = i2c_get_clientdata(client);1653 int i;1654 int value;1655 1656 /* Make the changes requested. */1657 /*1658 * We may need to unlock/stop monitoring or soft-reset the1659 * chip before we can make changes. This hasn't been1660 * tested much. FIXME1661 */1662 1663 /* Make outputs */1664 for (i = 0; i <= 16; ++i) {1665 if (gpio_output[i] >= 0 && gpio_output[i] <= 16)1666 data->gpio_config[gpio_output[i]] |= 0x01;1667 /* if GPIO0-7 is output, it isn't a FAN tach */1668 if (gpio_output[i] >= 0 && gpio_output[i] <= 7)1669 data->config2 |= 1 << gpio_output[i];1670 }1671 1672 /* Input overrides output */1673 for (i = 0; i <= 16; ++i) {1674 if (gpio_input[i] >= 0 && gpio_input[i] <= 16)1675 data->gpio_config[gpio_input[i]] &= ~0x01;1676 /* if GPIO0-7 is input, it isn't a FAN tach */1677 if (gpio_input[i] >= 0 && gpio_input[i] <= 7)1678 data->config2 |= 1 << gpio_input[i];1679 }1680 1681 /* Inverted */1682 for (i = 0; i <= 16; ++i) {1683 if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16)1684 data->gpio_config[gpio_inverted[i]] &= ~0x02;1685 }1686 1687 /* Normal overrides inverted */1688 for (i = 0; i <= 16; ++i) {1689 if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16)1690 data->gpio_config[gpio_normal[i]] |= 0x02;1691 }1692 1693 /* Fan overrides input and output */1694 for (i = 0; i <= 7; ++i) {1695 if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7)1696 data->config2 &= ~(1 << gpio_fan[i]);1697 }1698 1699 /* Write new configs to registers */1700 adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2);1701 data->config3 = (data->config3 & 0x3f)1702 | ((data->gpio_config[16] & 0x03) << 6);1703 adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3);1704 for (i = 15, value = 0; i >= 0; --i) {1705 value <<= 2;1706 value |= data->gpio_config[i] & 0x03;1707 if ((i & 0x03) == 0) {1708 adm1026_write_value(client,1709 ADM1026_REG_GPIO_CFG_0_3 + i/4,1710 value);1711 value = 0;1712 }1713 }1714 1715 /* Print the new config */1716 adm1026_print_gpio(client);1717}1718 1719static void adm1026_init_client(struct i2c_client *client)1720{1721 int value, i;1722 struct adm1026_data *data = i2c_get_clientdata(client);1723 1724 dev_dbg(&client->dev, "Initializing device\n");1725 /* Read chip config */1726 data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1);1727 data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2);1728 data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3);1729 1730 /* Inform user of chip config */1731 dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n",1732 data->config1);1733 if ((data->config1 & CFG1_MONITOR) == 0) {1734 dev_dbg(&client->dev,1735 "Monitoring not currently enabled.\n");1736 }1737 if (data->config1 & CFG1_INT_ENABLE) {1738 dev_dbg(&client->dev,1739 "SMBALERT interrupts are enabled.\n");1740 }1741 if (data->config1 & CFG1_AIN8_9) {1742 dev_dbg(&client->dev,1743 "in8 and in9 enabled. temp3 disabled.\n");1744 } else {1745 dev_dbg(&client->dev,1746 "temp3 enabled. in8 and in9 disabled.\n");1747 }1748 if (data->config1 & CFG1_THERM_HOT) {1749 dev_dbg(&client->dev,1750 "Automatic THERM, PWM, and temp limits enabled.\n");1751 }1752 1753 if (data->config3 & CFG3_GPIO16_ENABLE) {1754 dev_dbg(&client->dev,1755 "GPIO16 enabled. THERM pin disabled.\n");1756 } else {1757 dev_dbg(&client->dev,1758 "THERM pin enabled. GPIO16 disabled.\n");1759 }1760 if (data->config3 & CFG3_VREF_250)1761 dev_dbg(&client->dev, "Vref is 2.50 Volts.\n");1762 else1763 dev_dbg(&client->dev, "Vref is 1.82 Volts.\n");1764 /* Read and pick apart the existing GPIO configuration */1765 value = 0;1766 for (i = 0; i <= 15; ++i) {1767 if ((i & 0x03) == 0) {1768 value = adm1026_read_value(client,1769 ADM1026_REG_GPIO_CFG_0_3 + i / 4);1770 }1771 data->gpio_config[i] = value & 0x03;1772 value >>= 2;1773 }1774 data->gpio_config[16] = (data->config3 >> 6) & 0x03;1775 1776 /* ... and then print it */1777 adm1026_print_gpio(client);1778 1779 /*1780 * If the user asks us to reprogram the GPIO config, then1781 * do it now.1782 */1783 if (gpio_input[0] != -1 || gpio_output[0] != -11784 || gpio_inverted[0] != -1 || gpio_normal[0] != -11785 || gpio_fan[0] != -1) {1786 adm1026_fixup_gpio(client);1787 }1788 1789 /*1790 * WE INTENTIONALLY make no changes to the limits,1791 * offsets, pwms, fans and zones. If they were1792 * configured, we don't want to mess with them.1793 * If they weren't, the default is 100% PWM, no1794 * control and will suffice until 'sensors -s'1795 * can be run by the user. We DO set the default1796 * value for pwm1.auto_pwm_min to its maximum1797 * so that enabling automatic pwm fan control1798 * without first setting a value for pwm1.auto_pwm_min1799 * will not result in potentially dangerous fan speed decrease.1800 */1801 data->pwm1.auto_pwm_min = 255;1802 /* Start monitoring */1803 value = adm1026_read_value(client, ADM1026_REG_CONFIG1);1804 /* Set MONITOR, clear interrupt acknowledge and s/w reset */1805 value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET);1806 dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);1807 data->config1 = value;1808 adm1026_write_value(client, ADM1026_REG_CONFIG1, value);1809 1810 /* initialize fan_div[] to hardware defaults */1811 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) |1812 (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8);1813 for (i = 0; i <= 7; ++i) {1814 data->fan_div[i] = DIV_FROM_REG(value & 0x03);1815 value >>= 2;1816 }1817}1818 1819static int adm1026_probe(struct i2c_client *client)1820{1821 struct device *dev = &client->dev;1822 struct device *hwmon_dev;1823 struct adm1026_data *data;1824 1825 data = devm_kzalloc(dev, sizeof(struct adm1026_data), GFP_KERNEL);1826 if (!data)1827 return -ENOMEM;1828 1829 i2c_set_clientdata(client, data);1830 data->client = client;1831 mutex_init(&data->update_lock);1832 1833 /* Set the VRM version */1834 data->vrm = vid_which_vrm();1835 1836 /* Initialize the ADM1026 chip */1837 adm1026_init_client(client);1838 1839 /* sysfs hooks */1840 data->groups[0] = &adm1026_group;1841 if (data->config1 & CFG1_AIN8_9)1842 data->groups[1] = &adm1026_group_in8_9;1843 else1844 data->groups[1] = &adm1026_group_temp3;1845 1846 hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,1847 data, data->groups);1848 return PTR_ERR_OR_ZERO(hwmon_dev);1849}1850 1851static const struct i2c_device_id adm1026_id[] = {1852 { "adm1026" },1853 { }1854};1855MODULE_DEVICE_TABLE(i2c, adm1026_id);1856 1857static struct i2c_driver adm1026_driver = {1858 .class = I2C_CLASS_HWMON,1859 .driver = {1860 .name = "adm1026",1861 },1862 .probe = adm1026_probe,1863 .id_table = adm1026_id,1864 .detect = adm1026_detect,1865 .address_list = normal_i2c,1866};1867 1868module_i2c_driver(adm1026_driver);1869 1870MODULE_LICENSE("GPL");1871MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "1872 "Justin Thiessen <jthiessen@penguincomputing.com>");1873MODULE_DESCRIPTION("ADM1026 driver");1874