// SPDX-License-Identifier: GPL-2.0-or-later /* * f75375s.c - driver for the Fintek F75375/SP, F75373 and * F75387SG/RG hardware monitoring features * Copyright (C) 2006-2007 Riku Voipio * * Datasheets available at: * * f75375: * http://www.fintek.com.tw/files/productfiles/F75375_V026P.pdf * * f75373: * http://www.fintek.com.tw/files/productfiles/F75373_V025P.pdf * * f75387: * http://www.fintek.com.tw/files/productfiles/F75387_V027P.pdf */ #include <linux/module.h> #include <linux/jiffies.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/i2c.h> #include <linux/err.h> #include <linux/mutex.h> #include <linux/f75375s.h> #include <linux/slab.h> /* Addresses to scan */ static const unsigned short normal_i2c[] = …; enum chips { … }; /* Fintek F75375 registers */ #define F75375_REG_CONFIG0 … #define F75375_REG_CONFIG1 … #define F75375_REG_CONFIG2 … #define F75375_REG_CONFIG3 … #define F75375_REG_ADDR … #define F75375_REG_INTR … #define F75375_CHIP_ID … #define F75375_REG_VERSION … #define F75375_REG_VENDOR … #define F75375_REG_FAN_TIMER … #define F75375_REG_VOLT(nr) … #define F75375_REG_VOLT_HIGH(nr) … #define F75375_REG_VOLT_LOW(nr) … #define F75375_REG_TEMP(nr) … #define F75387_REG_TEMP11_LSB(nr) … #define F75375_REG_TEMP_HIGH(nr) … #define F75375_REG_TEMP_HYST(nr) … #define F75375_REG_FAN(nr) … #define F75375_REG_FAN_MIN(nr) … #define F75375_REG_FAN_FULL(nr) … #define F75375_REG_FAN_PWM_DUTY(nr) … #define F75375_REG_FAN_PWM_CLOCK(nr) … #define F75375_REG_FAN_EXP(nr) … #define F75375_REG_FAN_B_TEMP(nr, step) … #define F75375_REG_FAN_B_SPEED(nr, step) … #define F75375_REG_PWM1_RAISE_DUTY … #define F75375_REG_PWM2_RAISE_DUTY … #define F75375_REG_PWM1_DROP_DUTY … #define F75375_REG_PWM2_DROP_DUTY … #define F75375_FAN_CTRL_LINEAR(nr) … #define F75387_FAN_CTRL_LINEAR(nr) … #define FAN_CTRL_MODE(nr) … #define F75387_FAN_DUTY_MODE(nr) … #define F75387_FAN_MANU_MODE(nr) … /* * Data structures and manipulation thereof */ struct f75375_data { … }; static inline int f75375_read8(struct i2c_client *client, u8 reg) { … } /* in most cases, should be called while holding update_lock */ static inline u16 f75375_read16(struct i2c_client *client, u8 reg) { … } static inline void f75375_write8(struct i2c_client *client, u8 reg, u8 value) { … } static inline void f75375_write16(struct i2c_client *client, u8 reg, u16 value) { … } static void f75375_write_pwm(struct i2c_client *client, int nr) { … } static struct f75375_data *f75375_update_device(struct device *dev) { … } static inline u16 rpm_from_reg(u16 reg) { … } static inline u16 rpm_to_reg(int rpm) { … } static bool duty_mode_enabled(u8 pwm_enable) { … } static bool auto_mode_enabled(u8 pwm_enable) { … } static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t set_fan_target(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf) { … } static int set_pwm_enable_direct(struct i2c_client *client, int nr, int val) { … } static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf) { … } #define VOLT_FROM_REG(val) … #define VOLT_TO_REG(val) … static ssize_t show_in(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } #define TEMP_FROM_REG(val) … #define TEMP_TO_REG(val) … #define TEMP11_FROM_REG(reg) … static ssize_t show_temp11(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t set_temp_max_hyst(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } #define show_fan(thing) … show_fan(fan); show_fan(fan_min); show_fan(fan_max); show_fan(fan_target); static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO|S_IWUSR, show_in_max, set_in_max, 0); static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO|S_IWUSR, show_in_min, set_in_min, 0); static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO|S_IWUSR, show_in_max, set_in_max, 1); static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO|S_IWUSR, show_in_min, set_in_min, 1); static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO|S_IWUSR, show_in_max, set_in_max, 2); static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO|S_IWUSR, show_in_min, set_in_min, 2); static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO|S_IWUSR, show_in_max, set_in_max, 3); static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO|S_IWUSR, show_in_min, set_in_min, 3); static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp11, NULL, 0); static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst, set_temp_max_hyst, 0); static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO|S_IWUSR, show_temp_max, set_temp_max, 0); static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 1); static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst, set_temp_max_hyst, 1); static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO|S_IWUSR, show_temp_max, set_temp_max, 1); static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); static SENSOR_DEVICE_ATTR(fan1_max, S_IRUGO, show_fan_max, NULL, 0); static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO|S_IWUSR, show_fan_min, set_fan_min, 0); static SENSOR_DEVICE_ATTR(fan1_target, S_IRUGO|S_IWUSR, show_fan_target, set_fan_target, 0); static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); static SENSOR_DEVICE_ATTR(fan2_max, S_IRUGO, show_fan_max, NULL, 1); static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO|S_IWUSR, show_fan_min, set_fan_min, 1); static SENSOR_DEVICE_ATTR(fan2_target, S_IRUGO|S_IWUSR, show_fan_target, set_fan_target, 1); static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR, show_pwm, set_pwm, 0); static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR, show_pwm_enable, set_pwm_enable, 0); static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, show_pwm_mode, set_pwm_mode, 0); static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 1); static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR, show_pwm_enable, set_pwm_enable, 1); static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO, show_pwm_mode, set_pwm_mode, 1); static struct attribute *f75375_attributes[] = …; static const struct attribute_group f75375_group = …; static void f75375_init(struct i2c_client *client, struct f75375_data *data, struct f75375s_platform_data *f75375s_pdata) { … } static int f75375_probe(struct i2c_client *client) { … } static void f75375_remove(struct i2c_client *client) { … } /* Return 0 if detection is successful, -ENODEV otherwise */ static int f75375_detect(struct i2c_client *client, struct i2c_board_info *info) { … } static const struct i2c_device_id f75375_id[] = …; MODULE_DEVICE_TABLE(i2c, f75375_id); static struct i2c_driver f75375_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …;
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