// SPDX-License-Identifier: GPL-2.0-or-later /* * it87.c - Part of lm_sensors, Linux kernel modules for hardware * monitoring. * * The IT8705F is an LPC-based Super I/O part that contains UARTs, a * parallel port, an IR port, a MIDI port, a floppy controller, etc., in * addition to an Environment Controller (Enhanced Hardware Monitor and * Fan Controller) * * This driver supports only the Environment Controller in the IT8705F and * similar parts. The other devices are supported by different drivers. * * Supports: IT8603E Super I/O chip w/LPC interface * IT8620E Super I/O chip w/LPC interface * IT8622E Super I/O chip w/LPC interface * IT8623E Super I/O chip w/LPC interface * IT8628E Super I/O chip w/LPC interface * IT8705F Super I/O chip w/LPC interface * IT8712F Super I/O chip w/LPC interface * IT8716F Super I/O chip w/LPC interface * IT8718F Super I/O chip w/LPC interface * IT8720F Super I/O chip w/LPC interface * IT8721F Super I/O chip w/LPC interface * IT8726F Super I/O chip w/LPC interface * IT8728F Super I/O chip w/LPC interface * IT8732F Super I/O chip w/LPC interface * IT8758E Super I/O chip w/LPC interface * IT8771E Super I/O chip w/LPC interface * IT8772E Super I/O chip w/LPC interface * IT8781F Super I/O chip w/LPC interface * IT8782F Super I/O chip w/LPC interface * IT8783E/F Super I/O chip w/LPC interface * IT8786E Super I/O chip w/LPC interface * IT8790E Super I/O chip w/LPC interface * IT8792E Super I/O chip w/LPC interface * IT87952E Super I/O chip w/LPC interface * Sis950 A clone of the IT8705F * * Copyright (C) 2001 Chris Gauthron * Copyright (C) 2005-2010 Jean Delvare <[email protected]> */ #define pr_fmt(fmt) … #include <linux/bitops.h> #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/hwmon-vid.h> #include <linux/err.h> #include <linux/mutex.h> #include <linux/sysfs.h> #include <linux/string.h> #include <linux/dmi.h> #include <linux/acpi.h> #include <linux/io.h> #define DRVNAME … enum chips { … }; static struct platform_device *it87_pdev[2]; #define REG_2E … #define REG_4E … #define DEV … #define PME … /* The device with the IT8718F/IT8720F VID value in it */ #define GPIO … #define DEVID … #define DEVREV … static inline void __superio_enter(int ioreg) { … } static inline int superio_inb(int ioreg, int reg) { … } static inline void superio_outb(int ioreg, int reg, int val) { … } static int superio_inw(int ioreg, int reg) { … } static inline void superio_select(int ioreg, int ldn) { … } static inline int superio_enter(int ioreg, bool noentry) { … } static inline void superio_exit(int ioreg, bool noexit) { … } /* Logical device 4 registers */ #define IT8712F_DEVID … #define IT8705F_DEVID … #define IT8716F_DEVID … #define IT8718F_DEVID … #define IT8720F_DEVID … #define IT8721F_DEVID … #define IT8726F_DEVID … #define IT8728F_DEVID … #define IT8732F_DEVID … #define IT8792E_DEVID … #define IT8771E_DEVID … #define IT8772E_DEVID … #define IT8781F_DEVID … #define IT8782F_DEVID … #define IT8783E_DEVID … #define IT8786E_DEVID … #define IT8790E_DEVID … #define IT8603E_DEVID … #define IT8620E_DEVID … #define IT8622E_DEVID … #define IT8623E_DEVID … #define IT8628E_DEVID … #define IT87952E_DEVID … /* Logical device 4 (Environmental Monitor) registers */ #define IT87_ACT_REG … #define IT87_BASE_REG … #define IT87_SPECIAL_CFG_REG … /* Logical device 7 registers (IT8712F and later) */ #define IT87_SIO_GPIO1_REG … #define IT87_SIO_GPIO2_REG … #define IT87_SIO_GPIO3_REG … #define IT87_SIO_GPIO4_REG … #define IT87_SIO_GPIO5_REG … #define IT87_SIO_PINX1_REG … #define IT87_SIO_PINX2_REG … #define IT87_SIO_SPI_REG … #define IT87_SIO_VID_REG … #define IT87_SIO_BEEP_PIN_REG … /* Force chip IDs to specified values. Should only be used for testing */ static unsigned short force_id[2]; static unsigned int force_id_cnt; /* ACPI resource conflicts are ignored if this parameter is set to 1 */ static bool ignore_resource_conflict; /* Update battery voltage after every reading if true */ static bool update_vbat; /* Not all BIOSes properly configure the PWM registers */ static bool fix_pwm_polarity; /* Many IT87 constants specified below */ /* Length of ISA address segment */ #define IT87_EXTENT … /* Length of ISA address segment for Environmental Controller */ #define IT87_EC_EXTENT … /* Offset of EC registers from ISA base address */ #define IT87_EC_OFFSET … /* Where are the ISA address/data registers relative to the EC base address */ #define IT87_ADDR_REG_OFFSET … #define IT87_DATA_REG_OFFSET … /*----- The IT87 registers -----*/ #define IT87_REG_CONFIG … #define IT87_REG_ALARM1 … #define IT87_REG_ALARM2 … #define IT87_REG_ALARM3 … /* * The IT8718F and IT8720F have the VID value in a different register, in * Super-I/O configuration space. */ #define IT87_REG_VID … /* Interface Selection register on other chips */ #define IT87_REG_IFSEL … /* * The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b * for fan divisors. Later IT8712F revisions must use 16-bit tachometer * mode. */ #define IT87_REG_FAN_DIV … #define IT87_REG_FAN_16BIT … /* * Monitors: * - up to 13 voltage (0 to 7, battery, avcc, 10 to 12) * - up to 6 temp (1 to 6) * - up to 6 fan (1 to 6) */ static const u8 IT87_REG_FAN[] = …; static const u8 IT87_REG_FAN_MIN[] = …; static const u8 IT87_REG_FANX[] = …; static const u8 IT87_REG_FANX_MIN[] = …; static const u8 IT87_REG_TEMP_OFFSET[] = …; #define IT87_REG_FAN_MAIN_CTRL … #define IT87_REG_FAN_CTL … static const u8 IT87_REG_PWM[] = …; static const u8 IT87_REG_PWM_DUTY[] = …; static const u8 IT87_REG_VIN[] = …; #define IT87_REG_TEMP(nr) … #define IT87_REG_VIN_MAX(nr) … #define IT87_REG_VIN_MIN(nr) … #define IT87_REG_TEMP_HIGH(nr) … #define IT87_REG_TEMP_LOW(nr) … #define IT87_REG_VIN_ENABLE … #define IT87_REG_TEMP_ENABLE … #define IT87_REG_TEMP_EXTRA … #define IT87_REG_BEEP_ENABLE … #define IT87_REG_CHIPID … static const u8 IT87_REG_AUTO_BASE[] = …; #define IT87_REG_AUTO_TEMP(nr, i) … #define IT87_REG_AUTO_PWM(nr, i) … #define IT87_REG_TEMP456_ENABLE … #define NUM_VIN … #define NUM_VIN_LIMIT … #define NUM_TEMP … #define NUM_TEMP_OFFSET … #define NUM_TEMP_LIMIT … #define NUM_FAN … #define NUM_FAN_DIV … #define NUM_PWM … #define NUM_AUTO_PWM … struct it87_devices { … }; #define FEAT_12MV_ADC … #define FEAT_NEWER_AUTOPWM … #define FEAT_OLD_AUTOPWM … #define FEAT_16BIT_FANS … #define FEAT_TEMP_OFFSET … #define FEAT_TEMP_PECI … #define FEAT_TEMP_OLD_PECI … #define FEAT_FAN16_CONFIG … #define FEAT_FIVE_FANS … #define FEAT_VID … #define FEAT_IN7_INTERNAL … #define FEAT_SIX_FANS … #define FEAT_10_9MV_ADC … #define FEAT_AVCC3 … #define FEAT_FIVE_PWM … #define FEAT_SIX_PWM … #define FEAT_PWM_FREQ2 … #define FEAT_SIX_TEMP … #define FEAT_VIN3_5V … /* * Disabling configuration mode on some chips can result in system * hang-ups and access failures to the Super-IO chip at the * second SIO address. Never exit configuration mode on these * chips to avoid the problem. */ #define FEAT_NOCONF … #define FEAT_FOUR_FANS … #define FEAT_FOUR_PWM … #define FEAT_FOUR_TEMP … #define FEAT_FANCTL_ONOFF … static const struct it87_devices it87_devices[] = …; #define has_16bit_fans(data) … #define has_12mv_adc(data) … #define has_10_9mv_adc(data) … #define has_newer_autopwm(data) … #define has_old_autopwm(data) … #define has_temp_offset(data) … #define has_temp_peci(data, nr) … #define has_temp_old_peci(data, nr) … #define has_fan16_config(data) … #define has_four_fans(data) … #define has_five_fans(data) … #define has_six_fans(data) … #define has_vid(data) … #define has_in7_internal(data) … #define has_avcc3(data) … #define has_four_pwm(data) … #define has_five_pwm(data) … #define has_six_pwm(data) … #define has_pwm_freq2(data) … #define has_four_temp(data) … #define has_six_temp(data) … #define has_vin3_5v(data) … #define has_noconf(data) … #define has_scaling(data) … #define has_fanctl_onoff(data) … struct it87_sio_data { … }; /* * For each registered chip, we need to keep some data in memory. * The structure is dynamically allocated. */ struct it87_data { … }; /* Board specific settings from DMI matching */ struct it87_dmi_data { … }; /* Global for results from DMI matching, if needed */ static struct it87_dmi_data *dmi_data; static int adc_lsb(const struct it87_data *data, int nr) { … } static u8 in_to_reg(const struct it87_data *data, int nr, long val) { … } static int in_from_reg(const struct it87_data *data, int nr, int val) { … } static inline u8 FAN_TO_REG(long rpm, int div) { … } static inline u16 FAN16_TO_REG(long rpm) { … } #define FAN_FROM_REG(val, div) … /* The divider is fixed to 2 in 16-bit mode */ #define FAN16_FROM_REG(val) … #define TEMP_TO_REG(val) … #define TEMP_FROM_REG(val) … static u8 pwm_to_reg(const struct it87_data *data, long val) { … } static int pwm_from_reg(const struct it87_data *data, u8 reg) { … } static int DIV_TO_REG(int val) { … } #define DIV_FROM_REG(val) … /* * PWM base frequencies. The frequency has to be divided by either 128 or 256, * depending on the chip type, to calculate the actual PWM frequency. * * Some of the chip datasheets suggest a base frequency of 51 kHz instead * of 750 kHz for the slowest base frequency, resulting in a PWM frequency * of 200 Hz. Sometimes both PWM frequency select registers are affected, * sometimes just one. It is unknown if this is a datasheet error or real, * so this is ignored for now. */ static const unsigned int pwm_freq[8] = …; static int smbus_disable(struct it87_data *data) { … } static int smbus_enable(struct it87_data *data) { … } /* * Must be called with data->update_lock held, except during initialization. * Must be called with SMBus accesses disabled. * We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, * would slow down the IT87 access and should not be necessary. */ static int it87_read_value(struct it87_data *data, u8 reg) { … } /* * Must be called with data->update_lock held, except during initialization. * Must be called with SMBus accesses disabled. * We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, * would slow down the IT87 access and should not be necessary. */ static void it87_write_value(struct it87_data *data, u8 reg, u8 value) { … } static void it87_update_pwm_ctrl(struct it87_data *data, int nr) { … } static int it87_lock(struct it87_data *data) { … } static void it87_unlock(struct it87_data *data) { … } static struct it87_data *it87_update_device(struct device *dev) { … } static ssize_t show_in(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t set_in(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0); static SENSOR_DEVICE_ATTR_2(in0_min, S_IRUGO | S_IWUSR, show_in, set_in, 0, 1); static SENSOR_DEVICE_ATTR_2(in0_max, S_IRUGO | S_IWUSR, show_in, set_in, 0, 2); static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in, NULL, 1, 0); static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_in, set_in, 1, 1); static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_in, set_in, 1, 2); static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in, NULL, 2, 0); static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_in, set_in, 2, 1); static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_in, set_in, 2, 2); static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in, NULL, 3, 0); static SENSOR_DEVICE_ATTR_2(in3_min, S_IRUGO | S_IWUSR, show_in, set_in, 3, 1); static SENSOR_DEVICE_ATTR_2(in3_max, S_IRUGO | S_IWUSR, show_in, set_in, 3, 2); static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in, NULL, 4, 0); static SENSOR_DEVICE_ATTR_2(in4_min, S_IRUGO | S_IWUSR, show_in, set_in, 4, 1); static SENSOR_DEVICE_ATTR_2(in4_max, S_IRUGO | S_IWUSR, show_in, set_in, 4, 2); static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in, NULL, 5, 0); static SENSOR_DEVICE_ATTR_2(in5_min, S_IRUGO | S_IWUSR, show_in, set_in, 5, 1); static SENSOR_DEVICE_ATTR_2(in5_max, S_IRUGO | S_IWUSR, show_in, set_in, 5, 2); static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in, NULL, 6, 0); static SENSOR_DEVICE_ATTR_2(in6_min, S_IRUGO | S_IWUSR, show_in, set_in, 6, 1); static SENSOR_DEVICE_ATTR_2(in6_max, S_IRUGO | S_IWUSR, show_in, set_in, 6, 2); static SENSOR_DEVICE_ATTR_2(in7_input, S_IRUGO, show_in, NULL, 7, 0); static SENSOR_DEVICE_ATTR_2(in7_min, S_IRUGO | S_IWUSR, show_in, set_in, 7, 1); static SENSOR_DEVICE_ATTR_2(in7_max, S_IRUGO | S_IWUSR, show_in, set_in, 7, 2); static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in, NULL, 8, 0); static SENSOR_DEVICE_ATTR_2(in9_input, S_IRUGO, show_in, NULL, 9, 0); static SENSOR_DEVICE_ATTR_2(in10_input, S_IRUGO, show_in, NULL, 10, 0); static SENSOR_DEVICE_ATTR_2(in11_input, S_IRUGO, show_in, NULL, 11, 0); static SENSOR_DEVICE_ATTR_2(in12_input, S_IRUGO, show_in, NULL, 12, 0); /* Up to 6 temperatures */ static ssize_t show_temp(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t set_temp(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0); static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, set_temp, 0, 1); static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, set_temp, 0, 2); static SENSOR_DEVICE_ATTR_2(temp1_offset, S_IRUGO | S_IWUSR, show_temp, set_temp, 0, 3); static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0); static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, set_temp, 1, 1); static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, set_temp, 1, 2); static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IRUGO | S_IWUSR, show_temp, set_temp, 1, 3); static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0); static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, set_temp, 2, 1); static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp, 2, 2); static SENSOR_DEVICE_ATTR_2(temp3_offset, S_IRUGO | S_IWUSR, show_temp, set_temp, 2, 3); static SENSOR_DEVICE_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 3, 0); static SENSOR_DEVICE_ATTR_2(temp5_input, S_IRUGO, show_temp, NULL, 4, 0); static SENSOR_DEVICE_ATTR_2(temp6_input, S_IRUGO, show_temp, NULL, 5, 0); static int get_temp_type(struct it87_data *data, int index) { … } static ssize_t show_temp_type(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t set_temp_type(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR, show_temp_type, set_temp_type, 0); static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR, show_temp_type, set_temp_type, 1); static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR, show_temp_type, set_temp_type, 2); /* 6 Fans */ static int pwm_mode(const struct it87_data *data, int nr) { … } static ssize_t show_fan(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t set_fan(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } /* Returns 0 if OK, -EINVAL otherwise */ static int check_trip_points(struct device *dev, int nr) { … } static ssize_t set_pwm_enable(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 set_pwm_freq(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t show_pwm_temp_map(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t set_pwm_temp_map(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t show_auto_pwm(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t set_auto_pwm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t show_auto_pwm_slope(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t set_auto_pwm_slope(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t show_auto_temp(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t set_auto_temp(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_fan, NULL, 0, 0); static SENSOR_DEVICE_ATTR_2(fan1_min, S_IRUGO | S_IWUSR, show_fan, set_fan, 0, 1); static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, show_fan_div, set_fan_div, 0); static SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_fan, NULL, 1, 0); static SENSOR_DEVICE_ATTR_2(fan2_min, S_IRUGO | S_IWUSR, show_fan, set_fan, 1, 1); static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR, show_fan_div, set_fan_div, 1); static SENSOR_DEVICE_ATTR_2(fan3_input, S_IRUGO, show_fan, NULL, 2, 0); static SENSOR_DEVICE_ATTR_2(fan3_min, S_IRUGO | S_IWUSR, show_fan, set_fan, 2, 1); static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO | S_IWUSR, show_fan_div, set_fan_div, 2); static SENSOR_DEVICE_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 3, 0); static SENSOR_DEVICE_ATTR_2(fan4_min, S_IRUGO | S_IWUSR, show_fan, set_fan, 3, 1); static SENSOR_DEVICE_ATTR_2(fan5_input, S_IRUGO, show_fan, NULL, 4, 0); static SENSOR_DEVICE_ATTR_2(fan5_min, S_IRUGO | S_IWUSR, show_fan, set_fan, 4, 1); static SENSOR_DEVICE_ATTR_2(fan6_input, S_IRUGO, show_fan, NULL, 5, 0); static SENSOR_DEVICE_ATTR_2(fan6_min, S_IRUGO | S_IWUSR, show_fan, set_fan, 5, 1); static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable, set_pwm_enable, 0); static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0); static SENSOR_DEVICE_ATTR(pwm1_freq, S_IRUGO | S_IWUSR, show_pwm_freq, set_pwm_freq, 0); static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IRUGO, show_pwm_temp_map, set_pwm_temp_map, 0); static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 0, 0); static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 0, 1); static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_pwm, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 0, 2); static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_pwm, S_IRUGO, show_auto_pwm, NULL, 0, 3); static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 0, 1); static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 0, 0); static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 0, 2); static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 0, 3); static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 0, 4); static SENSOR_DEVICE_ATTR_2(pwm1_auto_start, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 0, 0); static SENSOR_DEVICE_ATTR(pwm1_auto_slope, S_IRUGO | S_IWUSR, show_auto_pwm_slope, set_auto_pwm_slope, 0); static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable, set_pwm_enable, 1); static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 1); static SENSOR_DEVICE_ATTR(pwm2_freq, S_IRUGO, show_pwm_freq, set_pwm_freq, 1); static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IRUGO, show_pwm_temp_map, set_pwm_temp_map, 1); static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 1, 0); static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 1, 1); static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_pwm, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 1, 2); static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_pwm, S_IRUGO, show_auto_pwm, NULL, 1, 3); static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 1, 1); static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 1, 0); static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 1, 2); static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 1, 3); static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 1, 4); static SENSOR_DEVICE_ATTR_2(pwm2_auto_start, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 1, 0); static SENSOR_DEVICE_ATTR(pwm2_auto_slope, S_IRUGO | S_IWUSR, show_auto_pwm_slope, set_auto_pwm_slope, 1); static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable, set_pwm_enable, 2); static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 2); static SENSOR_DEVICE_ATTR(pwm3_freq, S_IRUGO, show_pwm_freq, NULL, 2); static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IRUGO, show_pwm_temp_map, set_pwm_temp_map, 2); static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 2, 0); static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 2, 1); static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_pwm, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 2, 2); static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_pwm, S_IRUGO, show_auto_pwm, NULL, 2, 3); static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 1); static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 0); static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 2); static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 3); static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 4); static SENSOR_DEVICE_ATTR_2(pwm3_auto_start, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 2, 0); static SENSOR_DEVICE_ATTR(pwm3_auto_slope, S_IRUGO | S_IWUSR, show_auto_pwm_slope, set_auto_pwm_slope, 2); static SENSOR_DEVICE_ATTR(pwm4_enable, S_IRUGO | S_IWUSR, show_pwm_enable, set_pwm_enable, 3); static SENSOR_DEVICE_ATTR(pwm4, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 3); static SENSOR_DEVICE_ATTR(pwm4_freq, S_IRUGO, show_pwm_freq, NULL, 3); static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IRUGO, show_pwm_temp_map, set_pwm_temp_map, 3); static SENSOR_DEVICE_ATTR_2(pwm4_auto_point1_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 1); static SENSOR_DEVICE_ATTR_2(pwm4_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 0); static SENSOR_DEVICE_ATTR_2(pwm4_auto_point2_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 2); static SENSOR_DEVICE_ATTR_2(pwm4_auto_point3_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 3); static SENSOR_DEVICE_ATTR_2(pwm4_auto_start, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 3, 0); static SENSOR_DEVICE_ATTR(pwm4_auto_slope, S_IRUGO | S_IWUSR, show_auto_pwm_slope, set_auto_pwm_slope, 3); static SENSOR_DEVICE_ATTR(pwm5_enable, S_IRUGO | S_IWUSR, show_pwm_enable, set_pwm_enable, 4); static SENSOR_DEVICE_ATTR(pwm5, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 4); static SENSOR_DEVICE_ATTR(pwm5_freq, S_IRUGO, show_pwm_freq, NULL, 4); static SENSOR_DEVICE_ATTR(pwm5_auto_channels_temp, S_IRUGO, show_pwm_temp_map, set_pwm_temp_map, 4); static SENSOR_DEVICE_ATTR_2(pwm5_auto_point1_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 1); static SENSOR_DEVICE_ATTR_2(pwm5_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 0); static SENSOR_DEVICE_ATTR_2(pwm5_auto_point2_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 2); static SENSOR_DEVICE_ATTR_2(pwm5_auto_point3_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 3); static SENSOR_DEVICE_ATTR_2(pwm5_auto_start, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 4, 0); static SENSOR_DEVICE_ATTR(pwm5_auto_slope, S_IRUGO | S_IWUSR, show_auto_pwm_slope, set_auto_pwm_slope, 4); static SENSOR_DEVICE_ATTR(pwm6_enable, S_IRUGO | S_IWUSR, show_pwm_enable, set_pwm_enable, 5); static SENSOR_DEVICE_ATTR(pwm6, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 5); static SENSOR_DEVICE_ATTR(pwm6_freq, S_IRUGO, show_pwm_freq, NULL, 5); static SENSOR_DEVICE_ATTR(pwm6_auto_channels_temp, S_IRUGO, show_pwm_temp_map, set_pwm_temp_map, 5); static SENSOR_DEVICE_ATTR_2(pwm6_auto_point1_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 1); static SENSOR_DEVICE_ATTR_2(pwm6_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 0); static SENSOR_DEVICE_ATTR_2(pwm6_auto_point2_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 2); static SENSOR_DEVICE_ATTR_2(pwm6_auto_point3_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 3); static SENSOR_DEVICE_ATTR_2(pwm6_auto_start, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 5, 0); static SENSOR_DEVICE_ATTR(pwm6_auto_slope, S_IRUGO | S_IWUSR, show_auto_pwm_slope, set_auto_pwm_slope, 5); /* Alarms */ static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR_RO(alarms); static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t clear_intrusion(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0); static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1); static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2); static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3); static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6); static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 7); static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16); static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17); static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18); static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR, show_alarm, clear_intrusion, 4); static ssize_t show_beep(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t set_beep(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, show_beep, set_beep, 1); static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1); static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1); static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1); static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1); static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1); static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1); static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1); /* fanX_beep writability is set later */ static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0); static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0); static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0); static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0); static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0); static SENSOR_DEVICE_ATTR(fan6_beep, S_IRUGO, show_beep, set_beep, 0); static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR, show_beep, set_beep, 2); static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2); static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2); static ssize_t vrm_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t vrm_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR_RW(vrm); static ssize_t cpu0_vid_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR_RO(cpu0_vid); static ssize_t show_label(struct device *dev, struct device_attribute *attr, char *buf) { … } static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL, 0); static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_label, NULL, 1); static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, show_label, NULL, 2); /* AVCC3 */ static SENSOR_DEVICE_ATTR(in9_label, S_IRUGO, show_label, NULL, 3); static umode_t it87_in_is_visible(struct kobject *kobj, struct attribute *attr, int index) { … } static struct attribute *it87_attributes_in[] = …; static const struct attribute_group it87_group_in = …; static umode_t it87_temp_is_visible(struct kobject *kobj, struct attribute *attr, int index) { … } static struct attribute *it87_attributes_temp[] = …; static const struct attribute_group it87_group_temp = …; static umode_t it87_is_visible(struct kobject *kobj, struct attribute *attr, int index) { … } static struct attribute *it87_attributes[] = …; static const struct attribute_group it87_group = …; static umode_t it87_fan_is_visible(struct kobject *kobj, struct attribute *attr, int index) { … } static struct attribute *it87_attributes_fan[] = …; static const struct attribute_group it87_group_fan = …; static umode_t it87_pwm_is_visible(struct kobject *kobj, struct attribute *attr, int index) { … } static struct attribute *it87_attributes_pwm[] = …; static const struct attribute_group it87_group_pwm = …; static umode_t it87_auto_pwm_is_visible(struct kobject *kobj, struct attribute *attr, int index) { … } static struct attribute *it87_attributes_auto_pwm[] = …; static const struct attribute_group it87_group_auto_pwm = …; /* * Original explanation: * On various Gigabyte AM4 boards (AB350, AX370), the second Super-IO chip * (IT8792E) needs to be in configuration mode before accessing the first * due to a bug in IT8792E which otherwise results in LPC bus access errors. * This needs to be done before accessing the first Super-IO chip since * the second chip may have been accessed prior to loading this driver. * * The problem is also reported to affect IT8795E, which is used on X299 boards * and has the same chip ID as IT8792E (0x8733). It also appears to affect * systems with IT8790E, which is used on some Z97X-Gaming boards as well as * Z87X-OC. * * From other information supplied: * ChipIDs 0x8733, 0x8695 (early ID for IT87952E) and 0x8790 are initialized * and left in configuration mode, and entering and/or exiting configuration * mode is what causes the crash. * * The recommendation is to look up the chipID before doing any mode swap * and then act accordingly. */ /* SuperIO detection - will change isa_address if a chip is found */ static int __init it87_find(int sioaddr, unsigned short *address, struct it87_sio_data *sio_data, int chip_cnt) { … } /* * Some chips seem to have default value 0xff for all limit * registers. For low voltage limits it makes no sense and triggers * alarms, so change to 0 instead. For high temperature limits, it * means -1 degree C, which surprisingly doesn't trigger an alarm, * but is still confusing, so change to 127 degrees C. */ static void it87_check_limit_regs(struct it87_data *data) { … } /* Check if voltage monitors are reset manually or by some reason */ static void it87_check_voltage_monitors_reset(struct it87_data *data) { … } /* Check if tachometers are reset manually or by some reason */ static void it87_check_tachometers_reset(struct platform_device *pdev) { … } /* Set tachometers to 16-bit mode if needed */ static void it87_check_tachometers_16bit_mode(struct platform_device *pdev) { … } static void it87_start_monitoring(struct it87_data *data) { … } /* Called when we have found a new IT87. */ static void it87_init_device(struct platform_device *pdev) { … } /* Return 1 if and only if the PWM interface is safe to use */ static int it87_check_pwm(struct device *dev) { … } static int it87_probe(struct platform_device *pdev) { … } static void it87_resume_sio(struct platform_device *pdev) { … } static int it87_resume(struct device *dev) { … } static DEFINE_SIMPLE_DEV_PM_OPS(it87_dev_pm_ops, NULL, it87_resume); static struct platform_driver it87_driver = …; static int __init it87_device_add(int index, unsigned short address, const struct it87_sio_data *sio_data) { … } /* callback function for DMI */ static int it87_dmi_cb(const struct dmi_system_id *dmi_entry) { … } /* * On the Shuttle SN68PT, FAN_CTL2 is apparently not * connected to a fan, but to something else. One user * has reported instant system power-off when changing * the PWM2 duty cycle, so we disable it. * I use the board name string as the trigger in case * the same board is ever used in other systems. */ static struct it87_dmi_data nvidia_fn68pt = …; #define IT87_DMI_MATCH_VND(vendor, name, cb, data) … static const struct dmi_system_id it87_dmi_table[] __initconst = …; MODULE_DEVICE_TABLE(dmi, it87_dmi_table); static int __init sm_it87_init(void) { … } static void __exit sm_it87_exit(void) { … } MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; module_param_array(…); MODULE_PARM_DESC(…) …; module_param(ignore_resource_conflict, bool, 0); MODULE_PARM_DESC(…) …; module_param(update_vbat, bool, 0); MODULE_PARM_DESC(…) …; module_param(fix_pwm_polarity, bool, 0); MODULE_PARM_DESC(…) …; MODULE_LICENSE(…) …; module_init(…) …; module_exit(sm_it87_exit);
Codebase Browser
linux