// SPDX-License-Identifier: GPL-2.0-or-later /* * sis5595.c - Part of lm_sensors, Linux kernel modules * for hardware monitoring * * Copyright (C) 1998 - 2001 Frodo Looijaard <[email protected]>, * Kyösti Mälkki <[email protected]>, and * Mark D. Studebaker <[email protected]> * Ported to Linux 2.6 by Aurelien Jarno <[email protected]> with * the help of Jean Delvare <[email protected]> */ /* * SiS southbridge has a LM78-like chip integrated on the same IC. * This driver is a customized copy of lm78.c * * Supports following revisions: * Version PCI ID PCI Revision * 1 1039/0008 AF or less * 2 1039/0008 B0 or greater * * Note: these chips contain a 0008 device which is incompatible with the * 5595. We recognize these by the presence of the listed * "blacklist" PCI ID and refuse to load. * * NOT SUPPORTED PCI ID BLACKLIST PCI ID * 540 0008 0540 * 550 0008 0550 * 5513 0008 5511 * 5581 0008 5597 * 5582 0008 5597 * 5597 0008 5597 * 5598 0008 5597/5598 * 630 0008 0630 * 645 0008 0645 * 730 0008 0730 * 735 0008 0735 */ #define DRIVER_NAME … #define pr_fmt(fmt) … #include <linux/module.h> #include <linux/slab.h> #include <linux/ioport.h> #include <linux/pci.h> #include <linux/platform_device.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/err.h> #include <linux/init.h> #include <linux/jiffies.h> #include <linux/mutex.h> #include <linux/sysfs.h> #include <linux/acpi.h> #include <linux/io.h> /* * If force_addr is set to anything different from 0, we forcibly enable * the device at the given address. */ static u16 force_addr; module_param(force_addr, ushort, 0); MODULE_PARM_DESC(…) …; static struct platform_device *pdev; /* Many SIS5595 constants specified below */ /* Length of ISA address segment */ #define SIS5595_EXTENT … /* PCI Config Registers */ #define SIS5595_BASE_REG … #define SIS5595_PIN_REG … #define SIS5595_ENABLE_REG … /* Where are the ISA address/data registers relative to the base address */ #define SIS5595_ADDR_REG_OFFSET … #define SIS5595_DATA_REG_OFFSET … /* The SIS5595 registers */ #define SIS5595_REG_IN_MAX(nr) … #define SIS5595_REG_IN_MIN(nr) … #define SIS5595_REG_IN(nr) … #define SIS5595_REG_FAN_MIN(nr) … #define SIS5595_REG_FAN(nr) … /* * On the first version of the chip, the temp registers are separate. * On the second version, * TEMP pin is shared with IN4, configured in PCI register 0x7A. * The registers are the same as well. * OVER and HYST are really MAX and MIN. */ #define REV2MIN … #define SIS5595_REG_TEMP … #define SIS5595_REG_TEMP_OVER … #define SIS5595_REG_TEMP_HYST … #define SIS5595_REG_CONFIG … #define SIS5595_REG_ALARM1 … #define SIS5595_REG_ALARM2 … #define SIS5595_REG_FANDIV … /* * Conversions. Limit checking is only done on the TO_REG * variants. */ /* * IN: mV, (0V to 4.08V) * REG: 16mV/bit */ static inline u8 IN_TO_REG(unsigned long val) { … } #define IN_FROM_REG(val) … static inline u8 FAN_TO_REG(long rpm, int div) { … } static inline int FAN_FROM_REG(u8 val, int div) { … } /* * TEMP: mC (-54.12C to +157.53C) * REG: 0.83C/bit + 52.12, two's complement */ static inline int TEMP_FROM_REG(s8 val) { … } static inline s8 TEMP_TO_REG(long val) { … } /* * FAN DIV: 1, 2, 4, or 8 * REG: 0, 1, 2, or 3 (respectively) */ #define DIV_FROM_REG(val) … /* * For each registered chip, we need to keep some data in memory. * The structure is dynamically allocated. */ struct sis5595_data { … }; static struct pci_dev *s_bridge; /* pointer to the (only) sis5595 */ /* ISA access must be locked explicitly. */ static int sis5595_read_value(struct sis5595_data *data, u8 reg) { … } static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 value) { … } static struct sis5595_data *sis5595_update_device(struct device *dev) { … } /* 4 Voltages */ static ssize_t in_show(struct device *dev, struct device_attribute *da, char *buf) { … } static ssize_t in_min_show(struct device *dev, struct device_attribute *da, char *buf) { … } static ssize_t in_max_show(struct device *dev, struct device_attribute *da, char *buf) { … } static ssize_t in_min_store(struct device *dev, struct device_attribute *da, const char *buf, size_t count) { … } static ssize_t in_max_store(struct device *dev, struct device_attribute *da, const char *buf, size_t count) { … } static SENSOR_DEVICE_ATTR_RO(in0_input, in, 0); static SENSOR_DEVICE_ATTR_RW(in0_min, in_min, 0); static SENSOR_DEVICE_ATTR_RW(in0_max, in_max, 0); static SENSOR_DEVICE_ATTR_RO(in1_input, in, 1); static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 1); static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 1); static SENSOR_DEVICE_ATTR_RO(in2_input, in, 2); static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 2); static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 2); static SENSOR_DEVICE_ATTR_RO(in3_input, in, 3); static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 3); static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 3); static SENSOR_DEVICE_ATTR_RO(in4_input, in, 4); static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 4); static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 4); /* Temperature */ static ssize_t temp1_input_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t temp1_max_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t temp1_max_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t temp1_max_hyst_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t temp1_max_hyst_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR_RO(temp1_input); static DEVICE_ATTR_RW(temp1_max); static DEVICE_ATTR_RW(temp1_max_hyst); /* 2 Fans */ static ssize_t fan_show(struct device *dev, struct device_attribute *da, char *buf) { … } static ssize_t fan_min_show(struct device *dev, struct device_attribute *da, char *buf) { … } static ssize_t fan_min_store(struct device *dev, struct device_attribute *da, const char *buf, size_t count) { … } static ssize_t fan_div_show(struct device *dev, struct device_attribute *da, char *buf) { … } /* * Note: we save and restore the fan minimum here, because its value is * determined in part by the fan divisor. This follows the principle of * least surprise; the user doesn't expect the fan minimum to change just * because the divisor changed. */ static ssize_t fan_div_store(struct device *dev, struct device_attribute *da, const char *buf, size_t count) { … } static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, 0); static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0); static SENSOR_DEVICE_ATTR_RW(fan1_div, fan_div, 0); static SENSOR_DEVICE_ATTR_RO(fan2_input, fan, 1); static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1); static SENSOR_DEVICE_ATTR_RW(fan2_div, fan_div, 1); /* Alarms */ static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR_RO(alarms); static ssize_t alarm_show(struct device *dev, struct device_attribute *da, char *buf) { … } static SENSOR_DEVICE_ATTR_RO(in0_alarm, alarm, 0); static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, 1); static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, 2); static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, 3); static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, 15); static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, 6); static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, 7); static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, 15); static ssize_t name_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR_RO(name); static struct attribute *sis5595_attributes[] = …; static const struct attribute_group sis5595_group = …; static struct attribute *sis5595_attributes_in4[] = …; static const struct attribute_group sis5595_group_in4 = …; static struct attribute *sis5595_attributes_temp1[] = …; static const struct attribute_group sis5595_group_temp1 = …; /* Called when we have found a new SIS5595. */ static void sis5595_init_device(struct sis5595_data *data) { … } /* This is called when the module is loaded */ static int sis5595_probe(struct platform_device *pdev) { … } static void sis5595_remove(struct platform_device *pdev) { … } static const struct pci_device_id sis5595_pci_ids[] = …; MODULE_DEVICE_TABLE(pci, sis5595_pci_ids); static int blacklist[] = …; static int sis5595_device_add(unsigned short address) { … } static struct platform_driver sis5595_driver = …; static int sis5595_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { … } static struct pci_driver sis5595_pci_driver = …; static int __init sm_sis5595_init(void) { … } static void __exit sm_sis5595_exit(void) { … } MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; module_init(…) …; module_exit(sm_sis5595_exit);
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