// SPDX-License-Identifier: GPL-2.0-or-later /* * f71805f.c - driver for the Fintek F71805F/FG and F71872F/FG Super-I/O * chips integrated hardware monitoring features * Copyright (C) 2005-2006 Jean Delvare <[email protected]> * * The F71805F/FG is a LPC Super-I/O chip made by Fintek. It integrates * complete hardware monitoring features: voltage, fan and temperature * sensors, and manual and automatic fan speed control. * * The F71872F/FG is almost the same, with two more voltages monitored, * and 6 VID inputs. * * The F71806F/FG is essentially the same as the F71872F/FG. It even has * the same chip ID, so the driver can't differentiate between. */ #define pr_fmt(fmt) … #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/jiffies.h> #include <linux/platform_device.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/err.h> #include <linux/mutex.h> #include <linux/sysfs.h> #include <linux/ioport.h> #include <linux/acpi.h> #include <linux/io.h> static unsigned short force_id; module_param(force_id, ushort, 0); MODULE_PARM_DESC(…) …; static struct platform_device *pdev; #define DRVNAME … enum kinds { … }; /* * Super-I/O constants and functions */ #define F71805F_LD_HWM … #define SIO_REG_LDSEL … #define SIO_REG_DEVID … #define SIO_REG_DEVREV … #define SIO_REG_MANID … #define SIO_REG_FNSEL1 … #define SIO_REG_ENABLE … #define SIO_REG_ADDR … #define SIO_FINTEK_ID … #define SIO_F71805F_ID … #define SIO_F71872F_ID … static inline int superio_inb(int base, int reg) { … } static int superio_inw(int base, int reg) { … } static inline void superio_select(int base, int ld) { … } static inline int superio_enter(int base) { … } static inline void superio_exit(int base) { … } /* * ISA constants */ #define REGION_LENGTH … #define ADDR_REG_OFFSET … #define DATA_REG_OFFSET … /* * Registers */ /* in nr from 0 to 10 (8-bit values) */ #define F71805F_REG_IN(nr) … #define F71805F_REG_IN_HIGH(nr) … #define F71805F_REG_IN_LOW(nr) … /* fan nr from 0 to 2 (12-bit values, two registers) */ #define F71805F_REG_FAN(nr) … #define F71805F_REG_FAN_LOW(nr) … #define F71805F_REG_FAN_TARGET(nr) … #define F71805F_REG_FAN_CTRL(nr) … #define F71805F_REG_PWM_FREQ(nr) … #define F71805F_REG_PWM_DUTY(nr) … /* temp nr from 0 to 2 (8-bit values) */ #define F71805F_REG_TEMP(nr) … #define F71805F_REG_TEMP_HIGH(nr) … #define F71805F_REG_TEMP_HYST(nr) … #define F71805F_REG_TEMP_MODE … /* pwm/fan pwmnr from 0 to 2, auto point apnr from 0 to 2 */ /* map Fintek numbers to our numbers as follows: 9->0, 5->1, 1->2 */ #define F71805F_REG_PWM_AUTO_POINT_TEMP(pwmnr, apnr) … #define F71805F_REG_PWM_AUTO_POINT_FAN(pwmnr, apnr) … #define F71805F_REG_START … /* status nr from 0 to 2 */ #define F71805F_REG_STATUS(nr) … /* individual register bits */ #define FAN_CTRL_DC_MODE … #define FAN_CTRL_LATCH_FULL … #define FAN_CTRL_MODE_MASK … #define FAN_CTRL_MODE_SPEED … #define FAN_CTRL_MODE_TEMPERATURE … #define FAN_CTRL_MODE_MANUAL … /* * Data structures and manipulation thereof */ struct f71805f_auto_point { … }; struct f71805f_data { … }; struct f71805f_sio_data { … }; static inline long in_from_reg(u8 reg) { … } /* The 2 least significant bits are not used */ static inline u8 in_to_reg(long val) { … } /* in0 is downscaled by a factor 2 internally */ static inline long in0_from_reg(u8 reg) { … } static inline u8 in0_to_reg(long val) { … } /* The 4 most significant bits are not used */ static inline long fan_from_reg(u16 reg) { … } static inline u16 fan_to_reg(long rpm) { … } static inline unsigned long pwm_freq_from_reg(u8 reg) { … } static inline u8 pwm_freq_to_reg(unsigned long val) { … } static inline int pwm_mode_from_reg(u8 reg) { … } static inline long temp_from_reg(u8 reg) { … } static inline u8 temp_to_reg(long val) { … } /* * Device I/O access */ /* Must be called with data->update_lock held, except during initialization */ static u8 f71805f_read8(struct f71805f_data *data, u8 reg) { … } /* Must be called with data->update_lock held, except during initialization */ static void f71805f_write8(struct f71805f_data *data, u8 reg, u8 val) { … } /* * It is important to read the MSB first, because doing so latches the * value of the LSB, so we are sure both bytes belong to the same value. * Must be called with data->update_lock held, except during initialization */ static u16 f71805f_read16(struct f71805f_data *data, u8 reg) { … } /* Must be called with data->update_lock held, except during initialization */ static void f71805f_write16(struct f71805f_data *data, u8 reg, u16 val) { … } static struct f71805f_data *f71805f_update_device(struct device *dev) { … } /* * Sysfs interface */ static ssize_t show_in0(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t show_in0_max(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t show_in0_min(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t set_in0_max(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { … } static ssize_t set_in0_min(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { … } static ssize_t show_in(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { … } static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { … } static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t show_fan_target(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { … } static ssize_t set_fan_target(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { … } static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t show_pwm_mode(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { … } static struct attribute *f71805f_attr_pwm[]; static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { … } static ssize_t set_pwm_freq(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { … } static ssize_t show_pwm_auto_point_temp(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t set_pwm_auto_point_temp(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { … } static ssize_t show_pwm_auto_point_fan(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t set_pwm_auto_point_fan(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { … } static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t show_temp_hyst(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t show_temp_type(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { … } static ssize_t set_temp_hyst(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { … } static ssize_t alarms_in_show(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t alarms_fan_show(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t alarms_temp_show(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t show_alarm(struct device *dev, struct device_attribute *devattr, char *buf) { … } static ssize_t name_show(struct device *dev, struct device_attribute *devattr, char *buf) { … } static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in0, NULL, 0); static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR, show_in0_max, set_in0_max, 0); static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR, show_in0_min, set_in0_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(in4_input, S_IRUGO, show_in, NULL, 4); static SENSOR_DEVICE_ATTR(in4_max, S_IRUGO | S_IWUSR, show_in_max, set_in_max, 4); static SENSOR_DEVICE_ATTR(in4_min, S_IRUGO | S_IWUSR, show_in_min, set_in_min, 4); static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5); static SENSOR_DEVICE_ATTR(in5_max, S_IRUGO | S_IWUSR, show_in_max, set_in_max, 5); static SENSOR_DEVICE_ATTR(in5_min, S_IRUGO | S_IWUSR, show_in_min, set_in_min, 5); static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6); static SENSOR_DEVICE_ATTR(in6_max, S_IRUGO | S_IWUSR, show_in_max, set_in_max, 6); static SENSOR_DEVICE_ATTR(in6_min, S_IRUGO | S_IWUSR, show_in_min, set_in_min, 6); static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7); static SENSOR_DEVICE_ATTR(in7_max, S_IRUGO | S_IWUSR, show_in_max, set_in_max, 7); static SENSOR_DEVICE_ATTR(in7_min, S_IRUGO | S_IWUSR, show_in_min, set_in_min, 7); static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8); static SENSOR_DEVICE_ATTR(in8_max, S_IRUGO | S_IWUSR, show_in_max, set_in_max, 8); static SENSOR_DEVICE_ATTR(in8_min, S_IRUGO | S_IWUSR, show_in_min, set_in_min, 8); static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_in0, NULL, 9); static SENSOR_DEVICE_ATTR(in9_max, S_IRUGO | S_IWUSR, show_in0_max, set_in0_max, 9); static SENSOR_DEVICE_ATTR(in9_min, S_IRUGO | S_IWUSR, show_in0_min, set_in0_min, 9); static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_in0, NULL, 10); static SENSOR_DEVICE_ATTR(in10_max, S_IRUGO | S_IWUSR, show_in0_max, set_in0_max, 10); static SENSOR_DEVICE_ATTR(in10_min, S_IRUGO | S_IWUSR, show_in0_min, set_in0_min, 10); static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, 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_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(fan3_input, S_IRUGO, show_fan, NULL, 2); static SENSOR_DEVICE_ATTR(fan3_min, S_IRUGO | S_IWUSR, show_fan_min, set_fan_min, 2); static SENSOR_DEVICE_ATTR(fan3_target, S_IRUGO | S_IWUSR, show_fan_target, set_fan_target, 2); static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp_max, set_temp_max, 0); static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp_hyst, set_temp_hyst, 0); static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0); static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO | S_IWUSR, show_temp_max, set_temp_max, 1); static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp_hyst, set_temp_hyst, 1); static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1); static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO | S_IWUSR, show_temp_max, set_temp_max, 2); static SENSOR_DEVICE_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp_hyst, set_temp_hyst, 2); static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2); /* * pwm (value) files are created read-only, write permission is * then added or removed dynamically as needed */ static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO, 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_freq, S_IRUGO | S_IWUSR, show_pwm_freq, set_pwm_freq, 0); static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, show_pwm_mode, NULL, 0); static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO, 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_freq, S_IRUGO | S_IWUSR, show_pwm_freq, set_pwm_freq, 1); static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO, show_pwm_mode, NULL, 1); static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO, show_pwm, set_pwm, 2); static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable, set_pwm_enable, 2); static SENSOR_DEVICE_ATTR(pwm3_freq, S_IRUGO | S_IWUSR, show_pwm_freq, set_pwm_freq, 2); static SENSOR_DEVICE_ATTR(pwm3_mode, S_IRUGO, show_pwm_mode, NULL, 2); static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp, S_IRUGO | S_IWUSR, show_pwm_auto_point_temp, set_pwm_auto_point_temp, 0, 0); static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_fan, S_IRUGO | S_IWUSR, show_pwm_auto_point_fan, set_pwm_auto_point_fan, 0, 0); static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_temp, S_IRUGO | S_IWUSR, show_pwm_auto_point_temp, set_pwm_auto_point_temp, 0, 1); static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_fan, S_IRUGO | S_IWUSR, show_pwm_auto_point_fan, set_pwm_auto_point_fan, 0, 1); static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_temp, S_IRUGO | S_IWUSR, show_pwm_auto_point_temp, set_pwm_auto_point_temp, 0, 2); static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_fan, S_IRUGO | S_IWUSR, show_pwm_auto_point_fan, set_pwm_auto_point_fan, 0, 2); static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp, S_IRUGO | S_IWUSR, show_pwm_auto_point_temp, set_pwm_auto_point_temp, 1, 0); static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_fan, S_IRUGO | S_IWUSR, show_pwm_auto_point_fan, set_pwm_auto_point_fan, 1, 0); static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_temp, S_IRUGO | S_IWUSR, show_pwm_auto_point_temp, set_pwm_auto_point_temp, 1, 1); static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_fan, S_IRUGO | S_IWUSR, show_pwm_auto_point_fan, set_pwm_auto_point_fan, 1, 1); static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_temp, S_IRUGO | S_IWUSR, show_pwm_auto_point_temp, set_pwm_auto_point_temp, 1, 2); static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_fan, S_IRUGO | S_IWUSR, show_pwm_auto_point_fan, set_pwm_auto_point_fan, 1, 2); static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp, S_IRUGO | S_IWUSR, show_pwm_auto_point_temp, set_pwm_auto_point_temp, 2, 0); static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_fan, S_IRUGO | S_IWUSR, show_pwm_auto_point_fan, set_pwm_auto_point_fan, 2, 0); static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_temp, S_IRUGO | S_IWUSR, show_pwm_auto_point_temp, set_pwm_auto_point_temp, 2, 1); static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_fan, S_IRUGO | S_IWUSR, show_pwm_auto_point_fan, set_pwm_auto_point_fan, 2, 1); static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_temp, S_IRUGO | S_IWUSR, show_pwm_auto_point_temp, set_pwm_auto_point_temp, 2, 2); static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_fan, S_IRUGO | S_IWUSR, show_pwm_auto_point_fan, set_pwm_auto_point_fan, 2, 2); static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 4); static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 5); static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 6); static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 7); static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 8); static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 9); static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 10); static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 11); static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 12); static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13); static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16); static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17); static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18); static DEVICE_ATTR_RO(alarms_in); static DEVICE_ATTR_RO(alarms_fan); static DEVICE_ATTR_RO(alarms_temp); static DEVICE_ATTR_RO(name); static struct attribute *f71805f_attributes[] = …; static const struct attribute_group f71805f_group = …; static struct attribute *f71805f_attributes_optin[4][5] = …; static const struct attribute_group f71805f_group_optin[4] = …; /* * We don't include pwm_freq files in the arrays above, because they must be * created conditionally (only if pwm_mode is 1 == PWM) */ static struct attribute *f71805f_attributes_pwm_freq[] = …; static const struct attribute_group f71805f_group_pwm_freq = …; /* We also need an indexed access to pwmN files to toggle writability */ static struct attribute *f71805f_attr_pwm[] = …; /* * Device registration and initialization */ static void f71805f_init_device(struct f71805f_data *data) { … } static int f71805f_probe(struct platform_device *pdev) { … } static void f71805f_remove(struct platform_device *pdev) { … } static struct platform_driver f71805f_driver = …; static int __init f71805f_device_add(unsigned short address, const struct f71805f_sio_data *sio_data) { … } static int __init f71805f_find(int sioaddr, unsigned short *address, struct f71805f_sio_data *sio_data) { … } static int __init f71805f_init(void) { … } static void __exit f71805f_exit(void) { … } MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …; module_init(…) …; module_exit(f71805f_exit);
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