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666 lines
18 KiB
666 lines
18 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* emc2103.c - Support for SMSC EMC2103 |
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* Copyright (c) 2010 SMSC |
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*/ |
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#include <linux/module.h> |
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#include <linux/init.h> |
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#include <linux/slab.h> |
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#include <linux/jiffies.h> |
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#include <linux/i2c.h> |
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#include <linux/hwmon.h> |
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#include <linux/hwmon-sysfs.h> |
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#include <linux/err.h> |
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#include <linux/mutex.h> |
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/* Addresses scanned */ |
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static const unsigned short normal_i2c[] = { 0x2E, I2C_CLIENT_END }; |
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static const u8 REG_TEMP[4] = { 0x00, 0x02, 0x04, 0x06 }; |
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static const u8 REG_TEMP_MIN[4] = { 0x3c, 0x38, 0x39, 0x3a }; |
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static const u8 REG_TEMP_MAX[4] = { 0x34, 0x30, 0x31, 0x32 }; |
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#define REG_CONF1 0x20 |
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#define REG_TEMP_MAX_ALARM 0x24 |
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#define REG_TEMP_MIN_ALARM 0x25 |
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#define REG_FAN_CONF1 0x42 |
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#define REG_FAN_TARGET_LO 0x4c |
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#define REG_FAN_TARGET_HI 0x4d |
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#define REG_FAN_TACH_HI 0x4e |
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#define REG_FAN_TACH_LO 0x4f |
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#define REG_PRODUCT_ID 0xfd |
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#define REG_MFG_ID 0xfe |
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/* equation 4 from datasheet: rpm = (3932160 * multipler) / count */ |
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#define FAN_RPM_FACTOR 3932160 |
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/* |
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* 2103-2 and 2103-4's 3rd temperature sensor can be connected to two diodes |
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* in anti-parallel mode, and in this configuration both can be read |
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* independently (so we have 4 temperature inputs). The device can't |
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* detect if it's connected in this mode, so we have to manually enable |
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* it. Default is to leave the device in the state it's already in (-1). |
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* This parameter allows APD mode to be optionally forced on or off |
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*/ |
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static int apd = -1; |
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module_param(apd, bint, 0); |
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MODULE_PARM_DESC(apd, "Set to zero to disable anti-parallel diode mode"); |
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struct temperature { |
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s8 degrees; |
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u8 fraction; /* 0-7 multiples of 0.125 */ |
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}; |
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struct emc2103_data { |
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struct i2c_client *client; |
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const struct attribute_group *groups[4]; |
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struct mutex update_lock; |
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bool valid; /* registers are valid */ |
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bool fan_rpm_control; |
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int temp_count; /* num of temp sensors */ |
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unsigned long last_updated; /* in jiffies */ |
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struct temperature temp[4]; /* internal + 3 external */ |
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s8 temp_min[4]; /* no fractional part */ |
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s8 temp_max[4]; /* no fractional part */ |
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u8 temp_min_alarm; |
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u8 temp_max_alarm; |
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u8 fan_multiplier; |
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u16 fan_tach; |
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u16 fan_target; |
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}; |
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static int read_u8_from_i2c(struct i2c_client *client, u8 i2c_reg, u8 *output) |
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{ |
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int status = i2c_smbus_read_byte_data(client, i2c_reg); |
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if (status < 0) { |
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dev_warn(&client->dev, "reg 0x%02x, err %d\n", |
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i2c_reg, status); |
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} else { |
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*output = status; |
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} |
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return status; |
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} |
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static void read_temp_from_i2c(struct i2c_client *client, u8 i2c_reg, |
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struct temperature *temp) |
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{ |
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u8 degrees, fractional; |
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if (read_u8_from_i2c(client, i2c_reg, °rees) < 0) |
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return; |
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if (read_u8_from_i2c(client, i2c_reg + 1, &fractional) < 0) |
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return; |
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temp->degrees = degrees; |
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temp->fraction = (fractional & 0xe0) >> 5; |
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} |
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static void read_fan_from_i2c(struct i2c_client *client, u16 *output, |
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u8 hi_addr, u8 lo_addr) |
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{ |
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u8 high_byte, lo_byte; |
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if (read_u8_from_i2c(client, hi_addr, &high_byte) < 0) |
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return; |
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if (read_u8_from_i2c(client, lo_addr, &lo_byte) < 0) |
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return; |
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*output = ((u16)high_byte << 5) | (lo_byte >> 3); |
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} |
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static void write_fan_target_to_i2c(struct i2c_client *client, u16 new_target) |
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{ |
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u8 high_byte = (new_target & 0x1fe0) >> 5; |
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u8 low_byte = (new_target & 0x001f) << 3; |
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i2c_smbus_write_byte_data(client, REG_FAN_TARGET_LO, low_byte); |
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i2c_smbus_write_byte_data(client, REG_FAN_TARGET_HI, high_byte); |
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} |
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static void read_fan_config_from_i2c(struct i2c_client *client) |
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{ |
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struct emc2103_data *data = i2c_get_clientdata(client); |
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u8 conf1; |
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if (read_u8_from_i2c(client, REG_FAN_CONF1, &conf1) < 0) |
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return; |
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data->fan_multiplier = 1 << ((conf1 & 0x60) >> 5); |
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data->fan_rpm_control = (conf1 & 0x80) != 0; |
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} |
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static struct emc2103_data *emc2103_update_device(struct device *dev) |
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{ |
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struct emc2103_data *data = dev_get_drvdata(dev); |
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struct i2c_client *client = data->client; |
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mutex_lock(&data->update_lock); |
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if (time_after(jiffies, data->last_updated + HZ + HZ / 2) |
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|| !data->valid) { |
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int i; |
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for (i = 0; i < data->temp_count; i++) { |
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read_temp_from_i2c(client, REG_TEMP[i], &data->temp[i]); |
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read_u8_from_i2c(client, REG_TEMP_MIN[i], |
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&data->temp_min[i]); |
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read_u8_from_i2c(client, REG_TEMP_MAX[i], |
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&data->temp_max[i]); |
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} |
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read_u8_from_i2c(client, REG_TEMP_MIN_ALARM, |
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&data->temp_min_alarm); |
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read_u8_from_i2c(client, REG_TEMP_MAX_ALARM, |
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&data->temp_max_alarm); |
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read_fan_from_i2c(client, &data->fan_tach, |
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REG_FAN_TACH_HI, REG_FAN_TACH_LO); |
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read_fan_from_i2c(client, &data->fan_target, |
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REG_FAN_TARGET_HI, REG_FAN_TARGET_LO); |
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read_fan_config_from_i2c(client); |
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data->last_updated = jiffies; |
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data->valid = true; |
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} |
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mutex_unlock(&data->update_lock); |
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return data; |
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} |
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static ssize_t |
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temp_show(struct device *dev, struct device_attribute *da, char *buf) |
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{ |
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int nr = to_sensor_dev_attr(da)->index; |
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struct emc2103_data *data = emc2103_update_device(dev); |
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int millidegrees = data->temp[nr].degrees * 1000 |
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+ data->temp[nr].fraction * 125; |
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return sprintf(buf, "%d\n", millidegrees); |
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} |
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static ssize_t |
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temp_min_show(struct device *dev, struct device_attribute *da, char *buf) |
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{ |
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int nr = to_sensor_dev_attr(da)->index; |
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struct emc2103_data *data = emc2103_update_device(dev); |
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int millidegrees = data->temp_min[nr] * 1000; |
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return sprintf(buf, "%d\n", millidegrees); |
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} |
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static ssize_t |
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temp_max_show(struct device *dev, struct device_attribute *da, char *buf) |
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{ |
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int nr = to_sensor_dev_attr(da)->index; |
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struct emc2103_data *data = emc2103_update_device(dev); |
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int millidegrees = data->temp_max[nr] * 1000; |
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return sprintf(buf, "%d\n", millidegrees); |
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} |
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static ssize_t |
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temp_fault_show(struct device *dev, struct device_attribute *da, char *buf) |
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{ |
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int nr = to_sensor_dev_attr(da)->index; |
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struct emc2103_data *data = emc2103_update_device(dev); |
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bool fault = (data->temp[nr].degrees == -128); |
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return sprintf(buf, "%d\n", fault ? 1 : 0); |
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} |
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static ssize_t |
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temp_min_alarm_show(struct device *dev, struct device_attribute *da, |
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char *buf) |
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{ |
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int nr = to_sensor_dev_attr(da)->index; |
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struct emc2103_data *data = emc2103_update_device(dev); |
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bool alarm = data->temp_min_alarm & (1 << nr); |
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return sprintf(buf, "%d\n", alarm ? 1 : 0); |
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} |
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static ssize_t |
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temp_max_alarm_show(struct device *dev, struct device_attribute *da, |
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char *buf) |
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{ |
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int nr = to_sensor_dev_attr(da)->index; |
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struct emc2103_data *data = emc2103_update_device(dev); |
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bool alarm = data->temp_max_alarm & (1 << nr); |
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return sprintf(buf, "%d\n", alarm ? 1 : 0); |
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} |
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static ssize_t temp_min_store(struct device *dev, struct device_attribute *da, |
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const char *buf, size_t count) |
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{ |
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int nr = to_sensor_dev_attr(da)->index; |
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struct emc2103_data *data = dev_get_drvdata(dev); |
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struct i2c_client *client = data->client; |
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long val; |
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int result = kstrtol(buf, 10, &val); |
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if (result < 0) |
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return result; |
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val = DIV_ROUND_CLOSEST(clamp_val(val, -63000, 127000), 1000); |
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mutex_lock(&data->update_lock); |
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data->temp_min[nr] = val; |
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i2c_smbus_write_byte_data(client, REG_TEMP_MIN[nr], val); |
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mutex_unlock(&data->update_lock); |
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return count; |
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} |
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static ssize_t temp_max_store(struct device *dev, struct device_attribute *da, |
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const char *buf, size_t count) |
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{ |
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int nr = to_sensor_dev_attr(da)->index; |
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struct emc2103_data *data = dev_get_drvdata(dev); |
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struct i2c_client *client = data->client; |
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long val; |
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int result = kstrtol(buf, 10, &val); |
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if (result < 0) |
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return result; |
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val = DIV_ROUND_CLOSEST(clamp_val(val, -63000, 127000), 1000); |
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mutex_lock(&data->update_lock); |
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data->temp_max[nr] = val; |
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i2c_smbus_write_byte_data(client, REG_TEMP_MAX[nr], val); |
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mutex_unlock(&data->update_lock); |
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return count; |
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} |
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static ssize_t |
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fan1_input_show(struct device *dev, struct device_attribute *da, char *buf) |
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{ |
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struct emc2103_data *data = emc2103_update_device(dev); |
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int rpm = 0; |
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if (data->fan_tach != 0) |
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rpm = (FAN_RPM_FACTOR * data->fan_multiplier) / data->fan_tach; |
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return sprintf(buf, "%d\n", rpm); |
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} |
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static ssize_t |
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fan1_div_show(struct device *dev, struct device_attribute *da, char *buf) |
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{ |
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struct emc2103_data *data = emc2103_update_device(dev); |
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int fan_div = 8 / data->fan_multiplier; |
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return sprintf(buf, "%d\n", fan_div); |
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} |
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/* |
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* Note: we also update the fan target here, because its value is |
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* determined in part by the fan clock divider. This follows the principle |
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* of least surprise; the user doesn't expect the fan target to change just |
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* because the divider changed. |
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*/ |
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static ssize_t fan1_div_store(struct device *dev, struct device_attribute *da, |
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const char *buf, size_t count) |
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{ |
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struct emc2103_data *data = emc2103_update_device(dev); |
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struct i2c_client *client = data->client; |
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int new_range_bits, old_div = 8 / data->fan_multiplier; |
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long new_div; |
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int status = kstrtol(buf, 10, &new_div); |
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if (status < 0) |
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return status; |
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if (new_div == old_div) /* No change */ |
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return count; |
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switch (new_div) { |
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case 1: |
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new_range_bits = 3; |
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break; |
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case 2: |
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new_range_bits = 2; |
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break; |
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case 4: |
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new_range_bits = 1; |
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break; |
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case 8: |
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new_range_bits = 0; |
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break; |
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default: |
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return -EINVAL; |
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} |
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mutex_lock(&data->update_lock); |
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status = i2c_smbus_read_byte_data(client, REG_FAN_CONF1); |
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if (status < 0) { |
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dev_dbg(&client->dev, "reg 0x%02x, err %d\n", |
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REG_FAN_CONF1, status); |
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mutex_unlock(&data->update_lock); |
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return status; |
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} |
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status &= 0x9F; |
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status |= (new_range_bits << 5); |
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i2c_smbus_write_byte_data(client, REG_FAN_CONF1, status); |
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data->fan_multiplier = 8 / new_div; |
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/* update fan target if high byte is not disabled */ |
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if ((data->fan_target & 0x1fe0) != 0x1fe0) { |
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u16 new_target = (data->fan_target * old_div) / new_div; |
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data->fan_target = min(new_target, (u16)0x1fff); |
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write_fan_target_to_i2c(client, data->fan_target); |
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} |
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/* invalidate data to force re-read from hardware */ |
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data->valid = false; |
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mutex_unlock(&data->update_lock); |
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return count; |
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} |
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static ssize_t |
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fan1_target_show(struct device *dev, struct device_attribute *da, char *buf) |
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{ |
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struct emc2103_data *data = emc2103_update_device(dev); |
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int rpm = 0; |
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/* high byte of 0xff indicates disabled so return 0 */ |
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if ((data->fan_target != 0) && ((data->fan_target & 0x1fe0) != 0x1fe0)) |
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rpm = (FAN_RPM_FACTOR * data->fan_multiplier) |
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/ data->fan_target; |
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return sprintf(buf, "%d\n", rpm); |
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} |
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static ssize_t fan1_target_store(struct device *dev, |
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struct device_attribute *da, const char *buf, |
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size_t count) |
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{ |
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struct emc2103_data *data = emc2103_update_device(dev); |
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struct i2c_client *client = data->client; |
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unsigned long rpm_target; |
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int result = kstrtoul(buf, 10, &rpm_target); |
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if (result < 0) |
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return result; |
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/* Datasheet states 16384 as maximum RPM target (table 3.2) */ |
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rpm_target = clamp_val(rpm_target, 0, 16384); |
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mutex_lock(&data->update_lock); |
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if (rpm_target == 0) |
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data->fan_target = 0x1fff; |
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else |
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data->fan_target = clamp_val( |
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(FAN_RPM_FACTOR * data->fan_multiplier) / rpm_target, |
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0, 0x1fff); |
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write_fan_target_to_i2c(client, data->fan_target); |
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mutex_unlock(&data->update_lock); |
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return count; |
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} |
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static ssize_t |
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fan1_fault_show(struct device *dev, struct device_attribute *da, char *buf) |
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{ |
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struct emc2103_data *data = emc2103_update_device(dev); |
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bool fault = ((data->fan_tach & 0x1fe0) == 0x1fe0); |
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return sprintf(buf, "%d\n", fault ? 1 : 0); |
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} |
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static ssize_t |
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pwm1_enable_show(struct device *dev, struct device_attribute *da, char *buf) |
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{ |
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struct emc2103_data *data = emc2103_update_device(dev); |
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return sprintf(buf, "%d\n", data->fan_rpm_control ? 3 : 0); |
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} |
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static ssize_t pwm1_enable_store(struct device *dev, |
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struct device_attribute *da, const char *buf, |
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size_t count) |
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{ |
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struct emc2103_data *data = dev_get_drvdata(dev); |
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struct i2c_client *client = data->client; |
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long new_value; |
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u8 conf_reg; |
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int result = kstrtol(buf, 10, &new_value); |
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if (result < 0) |
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return result; |
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mutex_lock(&data->update_lock); |
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switch (new_value) { |
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case 0: |
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data->fan_rpm_control = false; |
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break; |
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case 3: |
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data->fan_rpm_control = true; |
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break; |
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default: |
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count = -EINVAL; |
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goto err; |
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} |
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result = read_u8_from_i2c(client, REG_FAN_CONF1, &conf_reg); |
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if (result < 0) { |
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count = result; |
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goto err; |
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} |
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if (data->fan_rpm_control) |
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conf_reg |= 0x80; |
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else |
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conf_reg &= ~0x80; |
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i2c_smbus_write_byte_data(client, REG_FAN_CONF1, conf_reg); |
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err: |
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mutex_unlock(&data->update_lock); |
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return count; |
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} |
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static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0); |
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static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0); |
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static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0); |
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static SENSOR_DEVICE_ATTR_RO(temp1_fault, temp_fault, 0); |
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static SENSOR_DEVICE_ATTR_RO(temp1_min_alarm, temp_min_alarm, 0); |
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static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, temp_max_alarm, 0); |
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|
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static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); |
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static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1); |
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static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1); |
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static SENSOR_DEVICE_ATTR_RO(temp2_fault, temp_fault, 1); |
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static SENSOR_DEVICE_ATTR_RO(temp2_min_alarm, temp_min_alarm, 1); |
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static SENSOR_DEVICE_ATTR_RO(temp2_max_alarm, temp_max_alarm, 1); |
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static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2); |
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static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_min, 2); |
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static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2); |
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static SENSOR_DEVICE_ATTR_RO(temp3_fault, temp_fault, 2); |
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static SENSOR_DEVICE_ATTR_RO(temp3_min_alarm, temp_min_alarm, 2); |
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static SENSOR_DEVICE_ATTR_RO(temp3_max_alarm, temp_max_alarm, 2); |
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|
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static SENSOR_DEVICE_ATTR_RO(temp4_input, temp, 3); |
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static SENSOR_DEVICE_ATTR_RW(temp4_min, temp_min, 3); |
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static SENSOR_DEVICE_ATTR_RW(temp4_max, temp_max, 3); |
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static SENSOR_DEVICE_ATTR_RO(temp4_fault, temp_fault, 3); |
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static SENSOR_DEVICE_ATTR_RO(temp4_min_alarm, temp_min_alarm, 3); |
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static SENSOR_DEVICE_ATTR_RO(temp4_max_alarm, temp_max_alarm, 3); |
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static DEVICE_ATTR_RO(fan1_input); |
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static DEVICE_ATTR_RW(fan1_div); |
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static DEVICE_ATTR_RW(fan1_target); |
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static DEVICE_ATTR_RO(fan1_fault); |
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|
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static DEVICE_ATTR_RW(pwm1_enable); |
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|
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/* sensors present on all models */ |
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static struct attribute *emc2103_attributes[] = { |
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&sensor_dev_attr_temp1_input.dev_attr.attr, |
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&sensor_dev_attr_temp1_min.dev_attr.attr, |
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&sensor_dev_attr_temp1_max.dev_attr.attr, |
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&sensor_dev_attr_temp1_fault.dev_attr.attr, |
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&sensor_dev_attr_temp1_min_alarm.dev_attr.attr, |
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&sensor_dev_attr_temp1_max_alarm.dev_attr.attr, |
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&sensor_dev_attr_temp2_input.dev_attr.attr, |
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&sensor_dev_attr_temp2_min.dev_attr.attr, |
|
&sensor_dev_attr_temp2_max.dev_attr.attr, |
|
&sensor_dev_attr_temp2_fault.dev_attr.attr, |
|
&sensor_dev_attr_temp2_min_alarm.dev_attr.attr, |
|
&sensor_dev_attr_temp2_max_alarm.dev_attr.attr, |
|
&dev_attr_fan1_input.attr, |
|
&dev_attr_fan1_div.attr, |
|
&dev_attr_fan1_target.attr, |
|
&dev_attr_fan1_fault.attr, |
|
&dev_attr_pwm1_enable.attr, |
|
NULL |
|
}; |
|
|
|
/* extra temperature sensors only present on 2103-2 and 2103-4 */ |
|
static struct attribute *emc2103_attributes_temp3[] = { |
|
&sensor_dev_attr_temp3_input.dev_attr.attr, |
|
&sensor_dev_attr_temp3_min.dev_attr.attr, |
|
&sensor_dev_attr_temp3_max.dev_attr.attr, |
|
&sensor_dev_attr_temp3_fault.dev_attr.attr, |
|
&sensor_dev_attr_temp3_min_alarm.dev_attr.attr, |
|
&sensor_dev_attr_temp3_max_alarm.dev_attr.attr, |
|
NULL |
|
}; |
|
|
|
/* extra temperature sensors only present on 2103-2 and 2103-4 in APD mode */ |
|
static struct attribute *emc2103_attributes_temp4[] = { |
|
&sensor_dev_attr_temp4_input.dev_attr.attr, |
|
&sensor_dev_attr_temp4_min.dev_attr.attr, |
|
&sensor_dev_attr_temp4_max.dev_attr.attr, |
|
&sensor_dev_attr_temp4_fault.dev_attr.attr, |
|
&sensor_dev_attr_temp4_min_alarm.dev_attr.attr, |
|
&sensor_dev_attr_temp4_max_alarm.dev_attr.attr, |
|
NULL |
|
}; |
|
|
|
static const struct attribute_group emc2103_group = { |
|
.attrs = emc2103_attributes, |
|
}; |
|
|
|
static const struct attribute_group emc2103_temp3_group = { |
|
.attrs = emc2103_attributes_temp3, |
|
}; |
|
|
|
static const struct attribute_group emc2103_temp4_group = { |
|
.attrs = emc2103_attributes_temp4, |
|
}; |
|
|
|
static int |
|
emc2103_probe(struct i2c_client *client) |
|
{ |
|
struct emc2103_data *data; |
|
struct device *hwmon_dev; |
|
int status, idx = 0; |
|
|
|
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
|
return -EIO; |
|
|
|
data = devm_kzalloc(&client->dev, sizeof(struct emc2103_data), |
|
GFP_KERNEL); |
|
if (!data) |
|
return -ENOMEM; |
|
|
|
i2c_set_clientdata(client, data); |
|
data->client = client; |
|
mutex_init(&data->update_lock); |
|
|
|
/* 2103-2 and 2103-4 have 3 external diodes, 2103-1 has 1 */ |
|
status = i2c_smbus_read_byte_data(client, REG_PRODUCT_ID); |
|
if (status == 0x24) { |
|
/* 2103-1 only has 1 external diode */ |
|
data->temp_count = 2; |
|
} else { |
|
/* 2103-2 and 2103-4 have 3 or 4 external diodes */ |
|
status = i2c_smbus_read_byte_data(client, REG_CONF1); |
|
if (status < 0) { |
|
dev_dbg(&client->dev, "reg 0x%02x, err %d\n", REG_CONF1, |
|
status); |
|
return status; |
|
} |
|
|
|
/* detect current state of hardware */ |
|
data->temp_count = (status & 0x01) ? 4 : 3; |
|
|
|
/* force APD state if module parameter is set */ |
|
if (apd == 0) { |
|
/* force APD mode off */ |
|
data->temp_count = 3; |
|
status &= ~(0x01); |
|
i2c_smbus_write_byte_data(client, REG_CONF1, status); |
|
} else if (apd == 1) { |
|
/* force APD mode on */ |
|
data->temp_count = 4; |
|
status |= 0x01; |
|
i2c_smbus_write_byte_data(client, REG_CONF1, status); |
|
} |
|
} |
|
|
|
/* sysfs hooks */ |
|
data->groups[idx++] = &emc2103_group; |
|
if (data->temp_count >= 3) |
|
data->groups[idx++] = &emc2103_temp3_group; |
|
if (data->temp_count == 4) |
|
data->groups[idx++] = &emc2103_temp4_group; |
|
|
|
hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev, |
|
client->name, data, |
|
data->groups); |
|
if (IS_ERR(hwmon_dev)) |
|
return PTR_ERR(hwmon_dev); |
|
|
|
dev_info(&client->dev, "%s: sensor '%s'\n", |
|
dev_name(hwmon_dev), client->name); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct i2c_device_id emc2103_ids[] = { |
|
{ "emc2103", 0, }, |
|
{ /* LIST END */ } |
|
}; |
|
MODULE_DEVICE_TABLE(i2c, emc2103_ids); |
|
|
|
/* Return 0 if detection is successful, -ENODEV otherwise */ |
|
static int |
|
emc2103_detect(struct i2c_client *new_client, struct i2c_board_info *info) |
|
{ |
|
struct i2c_adapter *adapter = new_client->adapter; |
|
int manufacturer, product; |
|
|
|
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
|
return -ENODEV; |
|
|
|
manufacturer = i2c_smbus_read_byte_data(new_client, REG_MFG_ID); |
|
if (manufacturer != 0x5D) |
|
return -ENODEV; |
|
|
|
product = i2c_smbus_read_byte_data(new_client, REG_PRODUCT_ID); |
|
if ((product != 0x24) && (product != 0x26)) |
|
return -ENODEV; |
|
|
|
strlcpy(info->type, "emc2103", I2C_NAME_SIZE); |
|
|
|
return 0; |
|
} |
|
|
|
static struct i2c_driver emc2103_driver = { |
|
.class = I2C_CLASS_HWMON, |
|
.driver = { |
|
.name = "emc2103", |
|
}, |
|
.probe_new = emc2103_probe, |
|
.id_table = emc2103_ids, |
|
.detect = emc2103_detect, |
|
.address_list = normal_i2c, |
|
}; |
|
|
|
module_i2c_driver(emc2103_driver); |
|
|
|
MODULE_AUTHOR("Steve Glendinning <[email protected]>"); |
|
MODULE_DESCRIPTION("SMSC EMC2103 hwmon driver"); |
|
MODULE_LICENSE("GPL");
|
|
|