// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for Texas Instruments / National Semiconductor LM95234 * * Copyright (c) 2013, 2014 Guenter Roeck <[email protected]> * * Derived from lm95241.c * Copyright (C) 2008, 2010 Davide Rizzo <[email protected]> */ #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/jiffies.h> #include <linux/i2c.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/err.h> #include <linux/mutex.h> #include <linux/sysfs.h> #define DRVNAME … enum chips { … }; static const unsigned short normal_i2c[] = …; /* LM95234 registers */ #define LM95234_REG_MAN_ID … #define LM95234_REG_CHIP_ID … #define LM95234_REG_STATUS … #define LM95234_REG_CONFIG … #define LM95234_REG_CONVRATE … #define LM95234_REG_STS_FAULT … #define LM95234_REG_STS_TCRIT1 … #define LM95234_REG_STS_TCRIT2 … #define LM95234_REG_TEMPH(x) … #define LM95234_REG_TEMPL(x) … #define LM95234_REG_UTEMPH(x) … #define LM95234_REG_UTEMPL(x) … #define LM95234_REG_REM_MODEL … #define LM95234_REG_REM_MODEL_STS … #define LM95234_REG_OFFSET(x) … #define LM95234_REG_TCRIT1(x) … #define LM95234_REG_TCRIT2(x) … #define LM95234_REG_TCRIT_HYST … #define NATSEMI_MAN_ID … #define LM95233_CHIP_ID … #define LM95234_CHIP_ID … /* Client data (each client gets its own) */ struct lm95234_data { … }; static int lm95234_read_temp(struct i2c_client *client, int index, int *t) { … } static u16 update_intervals[] = …; /* Fill value cache. Must be called with update lock held. */ static int lm95234_fill_cache(struct lm95234_data *data, struct i2c_client *client) { … } static int lm95234_update_device(struct lm95234_data *data) { … } static ssize_t temp_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t type_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t type_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t tcrit2_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t tcrit2_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t tcrit2_hyst_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t tcrit1_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t tcrit1_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t tcrit1_hyst_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t tcrit1_hyst_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t offset_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t offset_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t update_interval_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t update_interval_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0); static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2); static SENSOR_DEVICE_ATTR_RO(temp4_input, temp, 3); static SENSOR_DEVICE_ATTR_RO(temp5_input, temp, 4); static SENSOR_DEVICE_ATTR_RO(temp2_fault, alarm, BIT(0) | BIT(1)); static SENSOR_DEVICE_ATTR_RO(temp3_fault, alarm, BIT(2) | BIT(3)); static SENSOR_DEVICE_ATTR_RO(temp4_fault, alarm, BIT(4) | BIT(5)); static SENSOR_DEVICE_ATTR_RO(temp5_fault, alarm, BIT(6) | BIT(7)); static SENSOR_DEVICE_ATTR_RW(temp2_type, type, BIT(1)); static SENSOR_DEVICE_ATTR_RW(temp3_type, type, BIT(2)); static SENSOR_DEVICE_ATTR_RW(temp4_type, type, BIT(3)); static SENSOR_DEVICE_ATTR_RW(temp5_type, type, BIT(4)); static SENSOR_DEVICE_ATTR_RW(temp1_max, tcrit1, 0); static SENSOR_DEVICE_ATTR_RW(temp2_max, tcrit2, 0); static SENSOR_DEVICE_ATTR_RW(temp3_max, tcrit2, 1); static SENSOR_DEVICE_ATTR_RW(temp4_max, tcrit1, 3); static SENSOR_DEVICE_ATTR_RW(temp5_max, tcrit1, 4); static SENSOR_DEVICE_ATTR_RW(temp1_max_hyst, tcrit1_hyst, 0); static SENSOR_DEVICE_ATTR_RO(temp2_max_hyst, tcrit2_hyst, 0); static SENSOR_DEVICE_ATTR_RO(temp3_max_hyst, tcrit2_hyst, 1); static SENSOR_DEVICE_ATTR_RO(temp4_max_hyst, tcrit1_hyst, 3); static SENSOR_DEVICE_ATTR_RO(temp5_max_hyst, tcrit1_hyst, 4); static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, alarm, BIT(0 + 8)); static SENSOR_DEVICE_ATTR_RO(temp2_max_alarm, alarm, BIT(1 + 16)); static SENSOR_DEVICE_ATTR_RO(temp3_max_alarm, alarm, BIT(2 + 16)); static SENSOR_DEVICE_ATTR_RO(temp4_max_alarm, alarm, BIT(3 + 8)); static SENSOR_DEVICE_ATTR_RO(temp5_max_alarm, alarm, BIT(4 + 8)); static SENSOR_DEVICE_ATTR_RW(temp2_crit, tcrit1, 1); static SENSOR_DEVICE_ATTR_RW(temp3_crit, tcrit1, 2); static SENSOR_DEVICE_ATTR_RO(temp2_crit_hyst, tcrit1_hyst, 1); static SENSOR_DEVICE_ATTR_RO(temp3_crit_hyst, tcrit1_hyst, 2); static SENSOR_DEVICE_ATTR_RO(temp2_crit_alarm, alarm, BIT(1 + 8)); static SENSOR_DEVICE_ATTR_RO(temp3_crit_alarm, alarm, BIT(2 + 8)); static SENSOR_DEVICE_ATTR_RW(temp2_offset, offset, 0); static SENSOR_DEVICE_ATTR_RW(temp3_offset, offset, 1); static SENSOR_DEVICE_ATTR_RW(temp4_offset, offset, 2); static SENSOR_DEVICE_ATTR_RW(temp5_offset, offset, 3); static DEVICE_ATTR_RW(update_interval); static struct attribute *lm95234_common_attrs[] = …; static const struct attribute_group lm95234_common_group = …; static struct attribute *lm95234_attrs[] = …; static const struct attribute_group lm95234_group = …; static int lm95234_detect(struct i2c_client *client, struct i2c_board_info *info) { … } static int lm95234_init_client(struct i2c_client *client) { … } static int lm95234_probe(struct i2c_client *client) { … } /* Driver data (common to all clients) */ static const struct i2c_device_id lm95234_id[] = …; MODULE_DEVICE_TABLE(i2c, lm95234_id); static struct i2c_driver lm95234_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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