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drivers/hwmon/sis5595.c
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// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* sis5595.c - Part of lm_sensors, Linux kernel modules * for hardware monitoring * * Copyright (C) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>, * Kyösti Mälkki <kmalkki@cc.hut.fi>, and * Mark D. Studebaker <mdsxyz123@yahoo.com> * Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with |
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* the help of Jean Delvare <jdelvare@suse.de> |
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*/ |
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/* |
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* 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 */ |
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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#include <linux/module.h> #include <linux/slab.h> #include <linux/ioport.h> #include <linux/pci.h> |
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#include <linux/platform_device.h> |
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#include <linux/hwmon.h> |
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#include <linux/hwmon-sysfs.h> |
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#include <linux/err.h> |
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#include <linux/init.h> |
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#include <linux/jiffies.h> |
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#include <linux/mutex.h> |
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#include <linux/sysfs.h> |
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#include <linux/acpi.h> |
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#include <linux/io.h> |
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/* * If force_addr is set to anything different from 0, we forcibly enable * the device at the given address. */ |
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static u16 force_addr; module_param(force_addr, ushort, 0); MODULE_PARM_DESC(force_addr, "Initialize the base address of the sensors"); |
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static struct platform_device *pdev; |
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/* Many SIS5595 constants specified below */ /* Length of ISA address segment */ #define SIS5595_EXTENT 8 /* PCI Config Registers */ |
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#define SIS5595_BASE_REG 0x68 #define SIS5595_PIN_REG 0x7A #define SIS5595_ENABLE_REG 0x7B /* Where are the ISA address/data registers relative to the base address */ #define SIS5595_ADDR_REG_OFFSET 5 #define SIS5595_DATA_REG_OFFSET 6 /* The SIS5595 registers */ #define SIS5595_REG_IN_MAX(nr) (0x2b + (nr) * 2) #define SIS5595_REG_IN_MIN(nr) (0x2c + (nr) * 2) #define SIS5595_REG_IN(nr) (0x20 + (nr)) #define SIS5595_REG_FAN_MIN(nr) (0x3b + (nr)) #define SIS5595_REG_FAN(nr) (0x28 + (nr)) |
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/* * 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. */ |
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#define REV2MIN 0xb0 |
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#define SIS5595_REG_TEMP (((data->revision) >= REV2MIN) ? \ SIS5595_REG_IN(4) : 0x27) #define SIS5595_REG_TEMP_OVER (((data->revision) >= REV2MIN) ? \ SIS5595_REG_IN_MAX(4) : 0x39) #define SIS5595_REG_TEMP_HYST (((data->revision) >= REV2MIN) ? \ SIS5595_REG_IN_MIN(4) : 0x3a) |
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#define SIS5595_REG_CONFIG 0x40 #define SIS5595_REG_ALARM1 0x41 #define SIS5595_REG_ALARM2 0x42 #define SIS5595_REG_FANDIV 0x47 |
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/* * Conversions. Limit checking is only done on the TO_REG * variants. */ |
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/* * IN: mV, (0V to 4.08V) * REG: 16mV/bit */ |
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static inline u8 IN_TO_REG(unsigned long val) { |
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unsigned long nval = clamp_val(val, 0, 4080); |
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return (nval + 8) / 16; } #define IN_FROM_REG(val) ((val) * 16) static inline u8 FAN_TO_REG(long rpm, int div) { if (rpm <= 0) return 255; |
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if (rpm > 1350000) return 1; |
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return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254); |
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} static inline int FAN_FROM_REG(u8 val, int div) { |
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return val == 0 ? -1 : val == 255 ? 0 : 1350000 / (val * div); |
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} |
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/* * TEMP: mC (-54.12C to +157.53C) * REG: 0.83C/bit + 52.12, two's complement */ |
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static inline int TEMP_FROM_REG(s8 val) { return val * 830 + 52120; } |
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static inline s8 TEMP_TO_REG(long val) |
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{ |
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int nval = clamp_val(val, -54120, 157530) ; |
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return nval < 0 ? (nval - 5212 - 415) / 830 : (nval - 5212 + 415) / 830; |
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} |
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/* * FAN DIV: 1, 2, 4, or 8 (defaults to 2) * REG: 0, 1, 2, or 3 (respectively) (defaults to 1) */ |
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static inline u8 DIV_TO_REG(int val) { |
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return val == 8 ? 3 : val == 4 ? 2 : val == 1 ? 0 : 1; |
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} #define DIV_FROM_REG(val) (1 << (val)) |
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/* * For each registered chip, we need to keep some data in memory. * The structure is dynamically allocated. */ |
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struct sis5595_data { |
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unsigned short addr; const char *name; |
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struct device *hwmon_dev; |
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struct mutex lock; |
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struct mutex update_lock; |
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char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ char maxins; /* == 3 if temp enabled, otherwise == 4 */ u8 revision; /* Reg. value */ u8 in[5]; /* Register value */ u8 in_max[5]; /* Register value */ u8 in_min[5]; /* Register value */ u8 fan[2]; /* Register value */ u8 fan_min[2]; /* Register value */ s8 temp; /* Register value */ s8 temp_over; /* Register value */ s8 temp_hyst; /* Register value */ u8 fan_div[2]; /* Register encoding, shifted right */ u16 alarms; /* Register encoding, combined */ }; static struct pci_dev *s_bridge; /* pointer to the (only) sis5595 */ |
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static int sis5595_probe(struct platform_device *pdev); |
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static int sis5595_remove(struct platform_device *pdev); |
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static int sis5595_read_value(struct sis5595_data *data, u8 reg); static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 value); |
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static struct sis5595_data *sis5595_update_device(struct device *dev); |
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static void sis5595_init_device(struct sis5595_data *data); |
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static struct platform_driver sis5595_driver = { |
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.driver = { |
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.name = "sis5595", }, |
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.probe = sis5595_probe, |
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.remove = sis5595_remove, |
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}; /* 4 Voltages */ |
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static ssize_t in_show(struct device *dev, struct device_attribute *da, |
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char *buf) |
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{ struct sis5595_data *data = sis5595_update_device(dev); |
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struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; |
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return sprintf(buf, "%d ", IN_FROM_REG(data->in[nr])); } |
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static ssize_t in_min_show(struct device *dev, struct device_attribute *da, |
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char *buf) |
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{ struct sis5595_data *data = sis5595_update_device(dev); |
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struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; |
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return sprintf(buf, "%d ", IN_FROM_REG(data->in_min[nr])); } |
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static ssize_t in_max_show(struct device *dev, struct device_attribute *da, |
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char *buf) |
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{ struct sis5595_data *data = sis5595_update_device(dev); |
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struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; |
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return sprintf(buf, "%d ", IN_FROM_REG(data->in_max[nr])); } |
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static ssize_t in_min_store(struct device *dev, struct device_attribute *da, const char *buf, size_t count) |
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{ |
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struct sis5595_data *data = dev_get_drvdata(dev); |
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struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; |
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unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; |
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mutex_lock(&data->update_lock); |
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data->in_min[nr] = IN_TO_REG(val); |
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sis5595_write_value(data, SIS5595_REG_IN_MIN(nr), data->in_min[nr]); |
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mutex_unlock(&data->update_lock); |
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return count; } |
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static ssize_t in_max_store(struct device *dev, struct device_attribute *da, const char *buf, size_t count) |
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{ |
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struct sis5595_data *data = dev_get_drvdata(dev); |
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struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; |
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unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; |
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|
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mutex_lock(&data->update_lock); |
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data->in_max[nr] = IN_TO_REG(val); |
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sis5595_write_value(data, SIS5595_REG_IN_MAX(nr), data->in_max[nr]); |
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mutex_unlock(&data->update_lock); |
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return count; } |
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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); |
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/* Temperature */ |
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static ssize_t temp1_input_show(struct device *dev, struct device_attribute *attr, char *buf) |
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{ struct sis5595_data *data = sis5595_update_device(dev); return sprintf(buf, "%d ", TEMP_FROM_REG(data->temp)); } |
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static ssize_t temp1_max_show(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ struct sis5595_data *data = sis5595_update_device(dev); return sprintf(buf, "%d ", TEMP_FROM_REG(data->temp_over)); } |
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static ssize_t temp1_max_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ |
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struct sis5595_data *data = dev_get_drvdata(dev); |
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long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; |
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|
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mutex_lock(&data->update_lock); |
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data->temp_over = TEMP_TO_REG(val); |
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sis5595_write_value(data, SIS5595_REG_TEMP_OVER, data->temp_over); |
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mutex_unlock(&data->update_lock); |
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return count; } |
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static ssize_t temp1_max_hyst_show(struct device *dev, struct device_attribute *attr, char *buf) |
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{ struct sis5595_data *data = sis5595_update_device(dev); return sprintf(buf, "%d ", TEMP_FROM_REG(data->temp_hyst)); } |
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static ssize_t temp1_max_hyst_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ |
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struct sis5595_data *data = dev_get_drvdata(dev); |
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long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; |
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|
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mutex_lock(&data->update_lock); |
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data->temp_hyst = TEMP_TO_REG(val); |
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sis5595_write_value(data, SIS5595_REG_TEMP_HYST, data->temp_hyst); |
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mutex_unlock(&data->update_lock); |
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return count; } |
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static DEVICE_ATTR_RO(temp1_input); static DEVICE_ATTR_RW(temp1_max); static DEVICE_ATTR_RW(temp1_max_hyst); |
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/* 2 Fans */ |
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static ssize_t fan_show(struct device *dev, struct device_attribute *da, |
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char *buf) |
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{ struct sis5595_data *data = sis5595_update_device(dev); |
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struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; |
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return sprintf(buf, "%d ", FAN_FROM_REG(data->fan[nr], |
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DIV_FROM_REG(data->fan_div[nr]))); |
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} |
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static ssize_t fan_min_show(struct device *dev, struct device_attribute *da, |
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char *buf) |
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{ struct sis5595_data *data = sis5595_update_device(dev); |
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struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; |
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return sprintf(buf, "%d ", FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]))); |
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} |
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static ssize_t fan_min_store(struct device *dev, struct device_attribute *da, const char *buf, size_t count) |
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{ |
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struct sis5595_data *data = dev_get_drvdata(dev); |
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struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; |
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unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; |
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mutex_lock(&data->update_lock); |
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data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
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382 |
sis5595_write_value(data, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]); |
9a61bf630 [PATCH] hwmon: Se... |
383 |
mutex_unlock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
384 385 |
return count; } |
60a9c3f15 hwmon: (sis5595) ... |
386 |
static ssize_t fan_div_show(struct device *dev, struct device_attribute *da, |
1f5f48dde hwmon/sis5595: Us... |
387 |
char *buf) |
1da177e4c Linux-2.6.12-rc2 |
388 389 |
{ struct sis5595_data *data = sis5595_update_device(dev); |
1f5f48dde hwmon/sis5595: Us... |
390 391 |
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; |
8fda79ec8 hwmon: (sis5595) ... |
392 393 |
return sprintf(buf, "%d ", DIV_FROM_REG(data->fan_div[nr])); |
1da177e4c Linux-2.6.12-rc2 |
394 |
} |
8fda79ec8 hwmon: (sis5595) ... |
395 396 397 398 399 400 |
/* * 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. */ |
60a9c3f15 hwmon: (sis5595) ... |
401 402 |
static ssize_t fan_div_store(struct device *dev, struct device_attribute *da, const char *buf, size_t count) |
1da177e4c Linux-2.6.12-rc2 |
403 |
{ |
17e7dc437 hwmon/sis5595: Co... |
404 |
struct sis5595_data *data = dev_get_drvdata(dev); |
1f5f48dde hwmon/sis5595: Us... |
405 406 |
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); int nr = attr->index; |
1da177e4c Linux-2.6.12-rc2 |
407 |
unsigned long min; |
1da177e4c Linux-2.6.12-rc2 |
408 |
int reg; |
8fda79ec8 hwmon: (sis5595) ... |
409 410 411 412 413 414 |
unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; |
1da177e4c Linux-2.6.12-rc2 |
415 |
|
9a61bf630 [PATCH] hwmon: Se... |
416 |
mutex_lock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
417 418 |
min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])); |
17e7dc437 hwmon/sis5595: Co... |
419 |
reg = sis5595_read_value(data, SIS5595_REG_FANDIV); |
1da177e4c Linux-2.6.12-rc2 |
420 421 |
switch (val) { |
8fda79ec8 hwmon: (sis5595) ... |
422 423 424 425 426 427 428 429 430 431 432 433 |
case 1: data->fan_div[nr] = 0; break; case 2: data->fan_div[nr] = 1; break; case 4: data->fan_div[nr] = 2; break; case 8: data->fan_div[nr] = 3; break; |
1da177e4c Linux-2.6.12-rc2 |
434 |
default: |
b55f37572 hwmon: Fix checkp... |
435 436 437 438 |
dev_err(dev, "fan_div value %ld not supported. Choose one of 1, 2, 4 or 8! ", val); |
9a61bf630 [PATCH] hwmon: Se... |
439 |
mutex_unlock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
440 441 |
return -EINVAL; } |
8fda79ec8 hwmon: (sis5595) ... |
442 |
|
1da177e4c Linux-2.6.12-rc2 |
443 444 445 446 447 448 449 450 |
switch (nr) { case 0: reg = (reg & 0xcf) | (data->fan_div[nr] << 4); break; case 1: reg = (reg & 0x3f) | (data->fan_div[nr] << 6); break; } |
17e7dc437 hwmon/sis5595: Co... |
451 |
sis5595_write_value(data, SIS5595_REG_FANDIV, reg); |
1da177e4c Linux-2.6.12-rc2 |
452 453 |
data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); |
17e7dc437 hwmon/sis5595: Co... |
454 |
sis5595_write_value(data, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]); |
9a61bf630 [PATCH] hwmon: Se... |
455 |
mutex_unlock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
456 457 |
return count; } |
60a9c3f15 hwmon: (sis5595) ... |
458 459 460 461 462 463 |
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); |
1da177e4c Linux-2.6.12-rc2 |
464 |
|
1da177e4c Linux-2.6.12-rc2 |
465 |
/* Alarms */ |
feaf8bd49 hwmon: (sis5595) ... |
466 |
static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, |
8fda79ec8 hwmon: (sis5595) ... |
467 |
char *buf) |
1da177e4c Linux-2.6.12-rc2 |
468 469 470 471 472 |
{ struct sis5595_data *data = sis5595_update_device(dev); return sprintf(buf, "%d ", data->alarms); } |
feaf8bd49 hwmon: (sis5595) ... |
473 |
static DEVICE_ATTR_RO(alarms); |
a5ebe668a hwmon: Fix unchec... |
474 |
|
60a9c3f15 hwmon: (sis5595) ... |
475 |
static ssize_t alarm_show(struct device *dev, struct device_attribute *da, |
5c726b3ba hwmon: (sis5595) ... |
476 477 478 479 480 481 482 |
char *buf) { struct sis5595_data *data = sis5595_update_device(dev); int nr = to_sensor_dev_attr(da)->index; return sprintf(buf, "%u ", (data->alarms >> nr) & 1); } |
60a9c3f15 hwmon: (sis5595) ... |
483 484 485 486 487 488 489 490 |
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); |
5c726b3ba hwmon: (sis5595) ... |
491 |
|
feaf8bd49 hwmon: (sis5595) ... |
492 |
static ssize_t name_show(struct device *dev, struct device_attribute *attr, |
17e7dc437 hwmon/sis5595: Co... |
493 494 495 496 497 498 |
char *buf) { struct sis5595_data *data = dev_get_drvdata(dev); return sprintf(buf, "%s ", data->name); } |
feaf8bd49 hwmon: (sis5595) ... |
499 |
static DEVICE_ATTR_RO(name); |
17e7dc437 hwmon/sis5595: Co... |
500 |
|
a5ebe668a hwmon: Fix unchec... |
501 |
static struct attribute *sis5595_attributes[] = { |
1f5f48dde hwmon/sis5595: Us... |
502 503 504 |
&sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in0_min.dev_attr.attr, &sensor_dev_attr_in0_max.dev_attr.attr, |
5c726b3ba hwmon: (sis5595) ... |
505 |
&sensor_dev_attr_in0_alarm.dev_attr.attr, |
1f5f48dde hwmon/sis5595: Us... |
506 507 508 |
&sensor_dev_attr_in1_input.dev_attr.attr, &sensor_dev_attr_in1_min.dev_attr.attr, &sensor_dev_attr_in1_max.dev_attr.attr, |
5c726b3ba hwmon: (sis5595) ... |
509 |
&sensor_dev_attr_in1_alarm.dev_attr.attr, |
1f5f48dde hwmon/sis5595: Us... |
510 511 512 |
&sensor_dev_attr_in2_input.dev_attr.attr, &sensor_dev_attr_in2_min.dev_attr.attr, &sensor_dev_attr_in2_max.dev_attr.attr, |
5c726b3ba hwmon: (sis5595) ... |
513 |
&sensor_dev_attr_in2_alarm.dev_attr.attr, |
1f5f48dde hwmon/sis5595: Us... |
514 515 516 |
&sensor_dev_attr_in3_input.dev_attr.attr, &sensor_dev_attr_in3_min.dev_attr.attr, &sensor_dev_attr_in3_max.dev_attr.attr, |
5c726b3ba hwmon: (sis5595) ... |
517 |
&sensor_dev_attr_in3_alarm.dev_attr.attr, |
1f5f48dde hwmon/sis5595: Us... |
518 519 520 521 |
&sensor_dev_attr_fan1_input.dev_attr.attr, &sensor_dev_attr_fan1_min.dev_attr.attr, &sensor_dev_attr_fan1_div.dev_attr.attr, |
5c726b3ba hwmon: (sis5595) ... |
522 |
&sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1f5f48dde hwmon/sis5595: Us... |
523 524 525 |
&sensor_dev_attr_fan2_input.dev_attr.attr, &sensor_dev_attr_fan2_min.dev_attr.attr, &sensor_dev_attr_fan2_div.dev_attr.attr, |
5c726b3ba hwmon: (sis5595) ... |
526 |
&sensor_dev_attr_fan2_alarm.dev_attr.attr, |
a5ebe668a hwmon: Fix unchec... |
527 528 |
&dev_attr_alarms.attr, |
17e7dc437 hwmon/sis5595: Co... |
529 |
&dev_attr_name.attr, |
a5ebe668a hwmon: Fix unchec... |
530 531 532 533 534 535 |
NULL }; static const struct attribute_group sis5595_group = { .attrs = sis5595_attributes, }; |
76e63860d hwmon: (sis5595) ... |
536 |
static struct attribute *sis5595_attributes_in4[] = { |
1f5f48dde hwmon/sis5595: Us... |
537 538 539 |
&sensor_dev_attr_in4_input.dev_attr.attr, &sensor_dev_attr_in4_min.dev_attr.attr, &sensor_dev_attr_in4_max.dev_attr.attr, |
5c726b3ba hwmon: (sis5595) ... |
540 |
&sensor_dev_attr_in4_alarm.dev_attr.attr, |
76e63860d hwmon: (sis5595) ... |
541 542 543 544 545 546 |
NULL }; static const struct attribute_group sis5595_group_in4 = { .attrs = sis5595_attributes_in4, }; |
a5ebe668a hwmon: Fix unchec... |
547 |
|
76e63860d hwmon: (sis5595) ... |
548 |
static struct attribute *sis5595_attributes_temp1[] = { |
a5ebe668a hwmon: Fix unchec... |
549 550 551 |
&dev_attr_temp1_input.attr, &dev_attr_temp1_max.attr, &dev_attr_temp1_max_hyst.attr, |
5c726b3ba hwmon: (sis5595) ... |
552 |
&sensor_dev_attr_temp1_alarm.dev_attr.attr, |
a5ebe668a hwmon: Fix unchec... |
553 554 |
NULL }; |
76e63860d hwmon: (sis5595) ... |
555 556 |
static const struct attribute_group sis5595_group_temp1 = { .attrs = sis5595_attributes_temp1, |
a5ebe668a hwmon: Fix unchec... |
557 |
}; |
8fda79ec8 hwmon: (sis5595) ... |
558 |
|
1da177e4c Linux-2.6.12-rc2 |
559 |
/* This is called when the module is loaded */ |
6c931ae1c hwmon: remove use... |
560 |
static int sis5595_probe(struct platform_device *pdev) |
1da177e4c Linux-2.6.12-rc2 |
561 562 563 |
{ int err = 0; int i; |
1da177e4c Linux-2.6.12-rc2 |
564 |
struct sis5595_data *data; |
17e7dc437 hwmon/sis5595: Co... |
565 |
struct resource *res; |
1da177e4c Linux-2.6.12-rc2 |
566 |
char val; |
1da177e4c Linux-2.6.12-rc2 |
567 |
|
1da177e4c Linux-2.6.12-rc2 |
568 |
/* Reserve the ISA region */ |
17e7dc437 hwmon/sis5595: Co... |
569 |
res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
5d224ade3 hwmon: (sis5595) ... |
570 571 572 |
if (!devm_request_region(&pdev->dev, res->start, SIS5595_EXTENT, sis5595_driver.driver.name)) return -EBUSY; |
1da177e4c Linux-2.6.12-rc2 |
573 |
|
5d224ade3 hwmon: (sis5595) ... |
574 575 576 577 |
data = devm_kzalloc(&pdev->dev, sizeof(struct sis5595_data), GFP_KERNEL); if (!data) return -ENOMEM; |
1da177e4c Linux-2.6.12-rc2 |
578 |
|
9a61bf630 [PATCH] hwmon: Se... |
579 |
mutex_init(&data->lock); |
17e7dc437 hwmon/sis5595: Co... |
580 581 582 583 |
mutex_init(&data->update_lock); data->addr = res->start; data->name = "sis5595"; platform_set_drvdata(pdev, data); |
1da177e4c Linux-2.6.12-rc2 |
584 |
|
8fda79ec8 hwmon: (sis5595) ... |
585 586 587 |
/* * Check revision and pin registers to determine whether 4 or 5 voltages */ |
7b6d1f044 hwmon: (sis5595) ... |
588 |
data->revision = s_bridge->revision; |
1da177e4c Linux-2.6.12-rc2 |
589 590 591 592 593 594 595 596 |
/* 4 voltages, 1 temp */ data->maxins = 3; if (data->revision >= REV2MIN) { pci_read_config_byte(s_bridge, SIS5595_PIN_REG, &val); if (!(val & 0x80)) /* 5 voltages, no temps */ data->maxins = 4; } |
8fda79ec8 hwmon: (sis5595) ... |
597 |
|
1da177e4c Linux-2.6.12-rc2 |
598 |
/* Initialize the SIS5595 chip */ |
17e7dc437 hwmon/sis5595: Co... |
599 |
sis5595_init_device(data); |
1da177e4c Linux-2.6.12-rc2 |
600 601 602 |
/* A few vars need to be filled upon startup */ for (i = 0; i < 2; i++) { |
17e7dc437 hwmon/sis5595: Co... |
603 |
data->fan_min[i] = sis5595_read_value(data, |
1da177e4c Linux-2.6.12-rc2 |
604 605 606 607 |
SIS5595_REG_FAN_MIN(i)); } /* Register sysfs hooks */ |
8fda79ec8 hwmon: (sis5595) ... |
608 609 |
err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group); if (err) |
5d224ade3 hwmon: (sis5595) ... |
610 |
return err; |
a5ebe668a hwmon: Fix unchec... |
611 |
if (data->maxins == 4) { |
8fda79ec8 hwmon: (sis5595) ... |
612 613 |
err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group_in4); if (err) |
a5ebe668a hwmon: Fix unchec... |
614 615 |
goto exit_remove_files; } else { |
8fda79ec8 hwmon: (sis5595) ... |
616 617 |
err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group_temp1); if (err) |
a5ebe668a hwmon: Fix unchec... |
618 619 |
goto exit_remove_files; } |
1beeffe43 hwmon: Convert fr... |
620 621 622 |
data->hwmon_dev = hwmon_device_register(&pdev->dev); if (IS_ERR(data->hwmon_dev)) { err = PTR_ERR(data->hwmon_dev); |
a5ebe668a hwmon: Fix unchec... |
623 |
goto exit_remove_files; |
943b0830c [PATCH] I2C hwmon... |
624 |
} |
1da177e4c Linux-2.6.12-rc2 |
625 |
return 0; |
943b0830c [PATCH] I2C hwmon... |
626 |
|
a5ebe668a hwmon: Fix unchec... |
627 |
exit_remove_files: |
17e7dc437 hwmon/sis5595: Co... |
628 |
sysfs_remove_group(&pdev->dev.kobj, &sis5595_group); |
76e63860d hwmon: (sis5595) ... |
629 630 |
sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_in4); sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_temp1); |
1da177e4c Linux-2.6.12-rc2 |
631 632 |
return err; } |
281dfd0b6 hwmon: remove use... |
633 |
static int sis5595_remove(struct platform_device *pdev) |
1da177e4c Linux-2.6.12-rc2 |
634 |
{ |
17e7dc437 hwmon/sis5595: Co... |
635 |
struct sis5595_data *data = platform_get_drvdata(pdev); |
1da177e4c Linux-2.6.12-rc2 |
636 |
|
1beeffe43 hwmon: Convert fr... |
637 |
hwmon_device_unregister(data->hwmon_dev); |
17e7dc437 hwmon/sis5595: Co... |
638 |
sysfs_remove_group(&pdev->dev.kobj, &sis5595_group); |
76e63860d hwmon: (sis5595) ... |
639 640 |
sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_in4); sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_temp1); |
1da177e4c Linux-2.6.12-rc2 |
641 |
|
1da177e4c Linux-2.6.12-rc2 |
642 643 |
return 0; } |
1da177e4c Linux-2.6.12-rc2 |
644 |
/* ISA access must be locked explicitly. */ |
17e7dc437 hwmon/sis5595: Co... |
645 |
static int sis5595_read_value(struct sis5595_data *data, u8 reg) |
1da177e4c Linux-2.6.12-rc2 |
646 647 |
{ int res; |
9a61bf630 [PATCH] hwmon: Se... |
648 |
mutex_lock(&data->lock); |
17e7dc437 hwmon/sis5595: Co... |
649 650 |
outb_p(reg, data->addr + SIS5595_ADDR_REG_OFFSET); res = inb_p(data->addr + SIS5595_DATA_REG_OFFSET); |
9a61bf630 [PATCH] hwmon: Se... |
651 |
mutex_unlock(&data->lock); |
1da177e4c Linux-2.6.12-rc2 |
652 653 |
return res; } |
17e7dc437 hwmon/sis5595: Co... |
654 |
static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 value) |
1da177e4c Linux-2.6.12-rc2 |
655 |
{ |
9a61bf630 [PATCH] hwmon: Se... |
656 |
mutex_lock(&data->lock); |
17e7dc437 hwmon/sis5595: Co... |
657 658 |
outb_p(reg, data->addr + SIS5595_ADDR_REG_OFFSET); outb_p(value, data->addr + SIS5595_DATA_REG_OFFSET); |
9a61bf630 [PATCH] hwmon: Se... |
659 |
mutex_unlock(&data->lock); |
1da177e4c Linux-2.6.12-rc2 |
660 661 662 |
} /* Called when we have found a new SIS5595. */ |
6c931ae1c hwmon: remove use... |
663 |
static void sis5595_init_device(struct sis5595_data *data) |
1da177e4c Linux-2.6.12-rc2 |
664 |
{ |
17e7dc437 hwmon/sis5595: Co... |
665 |
u8 config = sis5595_read_value(data, SIS5595_REG_CONFIG); |
1da177e4c Linux-2.6.12-rc2 |
666 |
if (!(config & 0x01)) |
17e7dc437 hwmon/sis5595: Co... |
667 |
sis5595_write_value(data, SIS5595_REG_CONFIG, |
1da177e4c Linux-2.6.12-rc2 |
668 669 670 671 672 |
(config & 0xf7) | 0x01); } static struct sis5595_data *sis5595_update_device(struct device *dev) { |
17e7dc437 hwmon/sis5595: Co... |
673 |
struct sis5595_data *data = dev_get_drvdata(dev); |
1da177e4c Linux-2.6.12-rc2 |
674 |
int i; |
9a61bf630 [PATCH] hwmon: Se... |
675 |
mutex_lock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
676 677 678 679 680 681 |
if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || !data->valid) { for (i = 0; i <= data->maxins; i++) { data->in[i] = |
17e7dc437 hwmon/sis5595: Co... |
682 |
sis5595_read_value(data, SIS5595_REG_IN(i)); |
1da177e4c Linux-2.6.12-rc2 |
683 |
data->in_min[i] = |
17e7dc437 hwmon/sis5595: Co... |
684 |
sis5595_read_value(data, |
1da177e4c Linux-2.6.12-rc2 |
685 686 |
SIS5595_REG_IN_MIN(i)); data->in_max[i] = |
17e7dc437 hwmon/sis5595: Co... |
687 |
sis5595_read_value(data, |
1da177e4c Linux-2.6.12-rc2 |
688 689 690 691 |
SIS5595_REG_IN_MAX(i)); } for (i = 0; i < 2; i++) { data->fan[i] = |
17e7dc437 hwmon/sis5595: Co... |
692 |
sis5595_read_value(data, SIS5595_REG_FAN(i)); |
1da177e4c Linux-2.6.12-rc2 |
693 |
data->fan_min[i] = |
17e7dc437 hwmon/sis5595: Co... |
694 |
sis5595_read_value(data, |
1da177e4c Linux-2.6.12-rc2 |
695 696 697 698 |
SIS5595_REG_FAN_MIN(i)); } if (data->maxins == 3) { data->temp = |
17e7dc437 hwmon/sis5595: Co... |
699 |
sis5595_read_value(data, SIS5595_REG_TEMP); |
1da177e4c Linux-2.6.12-rc2 |
700 |
data->temp_over = |
17e7dc437 hwmon/sis5595: Co... |
701 |
sis5595_read_value(data, SIS5595_REG_TEMP_OVER); |
1da177e4c Linux-2.6.12-rc2 |
702 |
data->temp_hyst = |
17e7dc437 hwmon/sis5595: Co... |
703 |
sis5595_read_value(data, SIS5595_REG_TEMP_HYST); |
1da177e4c Linux-2.6.12-rc2 |
704 |
} |
17e7dc437 hwmon/sis5595: Co... |
705 |
i = sis5595_read_value(data, SIS5595_REG_FANDIV); |
1da177e4c Linux-2.6.12-rc2 |
706 707 708 |
data->fan_div[0] = (i >> 4) & 0x03; data->fan_div[1] = i >> 6; data->alarms = |
17e7dc437 hwmon/sis5595: Co... |
709 710 |
sis5595_read_value(data, SIS5595_REG_ALARM1) | (sis5595_read_value(data, SIS5595_REG_ALARM2) << 8); |
1da177e4c Linux-2.6.12-rc2 |
711 712 713 |
data->last_updated = jiffies; data->valid = 1; } |
9a61bf630 [PATCH] hwmon: Se... |
714 |
mutex_unlock(&data->update_lock); |
1da177e4c Linux-2.6.12-rc2 |
715 716 717 |
return data; } |
cd9bb0564 hwmon: remove DEF... |
718 |
static const struct pci_device_id sis5595_pci_ids[] = { |
1da177e4c Linux-2.6.12-rc2 |
719 720 721 722 723 |
{ PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) }, { 0, } }; MODULE_DEVICE_TABLE(pci, sis5595_pci_ids); |
a5977246c hwmon: remove use... |
724 |
static int blacklist[] = { |
1da177e4c Linux-2.6.12-rc2 |
725 726 727 728 729 730 |
PCI_DEVICE_ID_SI_540, PCI_DEVICE_ID_SI_550, PCI_DEVICE_ID_SI_630, PCI_DEVICE_ID_SI_645, PCI_DEVICE_ID_SI_730, PCI_DEVICE_ID_SI_735, |
8fda79ec8 hwmon: (sis5595) ... |
731 732 733 734 735 |
PCI_DEVICE_ID_SI_5511, /* * 5513 chip has the 0008 device but * that ID shows up in other chips so we * use the 5511 ID for recognition */ |
1da177e4c Linux-2.6.12-rc2 |
736 737 738 |
PCI_DEVICE_ID_SI_5597, PCI_DEVICE_ID_SI_5598, 0 }; |
6c931ae1c hwmon: remove use... |
739 |
static int sis5595_device_add(unsigned short address) |
17e7dc437 hwmon/sis5595: Co... |
740 741 742 743 744 745 746 747 |
{ struct resource res = { .start = address, .end = address + SIS5595_EXTENT - 1, .name = "sis5595", .flags = IORESOURCE_IO, }; int err; |
b9acb64a3 hwmon: Check for ... |
748 749 750 |
err = acpi_check_resource_conflict(&res); if (err) goto exit; |
17e7dc437 hwmon/sis5595: Co... |
751 752 753 |
pdev = platform_device_alloc("sis5595", address); if (!pdev) { err = -ENOMEM; |
4b2515dbb hwmon: (sis5595) ... |
754 755 |
pr_err("Device allocation failed "); |
17e7dc437 hwmon/sis5595: Co... |
756 757 758 759 760 |
goto exit; } err = platform_device_add_resources(pdev, &res, 1); if (err) { |
4b2515dbb hwmon: (sis5595) ... |
761 762 |
pr_err("Device resource addition failed (%d) ", err); |
17e7dc437 hwmon/sis5595: Co... |
763 764 765 766 767 |
goto exit_device_put; } err = platform_device_add(pdev); if (err) { |
4b2515dbb hwmon: (sis5595) ... |
768 769 |
pr_err("Device addition failed (%d) ", err); |
17e7dc437 hwmon/sis5595: Co... |
770 771 772 773 774 775 776 777 778 779 |
goto exit_device_put; } return 0; exit_device_put: platform_device_put(pdev); exit: return err; } |
6c931ae1c hwmon: remove use... |
780 |
static int sis5595_pci_probe(struct pci_dev *dev, |
1da177e4c Linux-2.6.12-rc2 |
781 782 |
const struct pci_device_id *id) { |
17e7dc437 hwmon/sis5595: Co... |
783 784 |
u16 address; u8 enable; |
1da177e4c Linux-2.6.12-rc2 |
785 |
int *i; |
1da177e4c Linux-2.6.12-rc2 |
786 787 |
for (i = blacklist; *i != 0; i++) { |
5460a9d0f hwmon: (sis5595) ... |
788 |
struct pci_dev *d; |
8fda79ec8 hwmon: (sis5595) ... |
789 790 791 792 793 794 |
d = pci_get_device(PCI_VENDOR_ID_SI, *i, NULL); if (d) { dev_err(&d->dev, "Looked for SIS5595 but found unsupported device %.4x ", *i); |
5460a9d0f hwmon: (sis5595) ... |
795 |
pci_dev_put(d); |
1da177e4c Linux-2.6.12-rc2 |
796 797 798 |
return -ENODEV; } } |
8fda79ec8 hwmon: (sis5595) ... |
799 |
|
17e7dc437 hwmon/sis5595: Co... |
800 801 802 803 804 805 |
force_addr &= ~(SIS5595_EXTENT - 1); if (force_addr) { dev_warn(&dev->dev, "Forcing ISA address 0x%x ", force_addr); pci_write_config_word(dev, SIS5595_BASE_REG, force_addr); } |
1da177e4c Linux-2.6.12-rc2 |
806 |
if (PCIBIOS_SUCCESSFUL != |
17e7dc437 hwmon/sis5595: Co... |
807 808 809 |
pci_read_config_word(dev, SIS5595_BASE_REG, &address)) { dev_err(&dev->dev, "Failed to read ISA address "); |
1da177e4c Linux-2.6.12-rc2 |
810 |
return -ENODEV; |
17e7dc437 hwmon/sis5595: Co... |
811 |
} |
8fda79ec8 hwmon: (sis5595) ... |
812 |
|
17e7dc437 hwmon/sis5595: Co... |
813 814 |
address &= ~(SIS5595_EXTENT - 1); if (!address) { |
8fda79ec8 hwmon: (sis5595) ... |
815 816 817 |
dev_err(&dev->dev, "Base address not set - upgrade BIOS or use force_addr=0xaddr "); |
1da177e4c Linux-2.6.12-rc2 |
818 |
return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
819 |
} |
17e7dc437 hwmon/sis5595: Co... |
820 821 822 823 824 825 |
if (force_addr && address != force_addr) { /* doesn't work for some chips? */ dev_err(&dev->dev, "Failed to force ISA address "); return -ENODEV; } |
1da177e4c Linux-2.6.12-rc2 |
826 |
|
17e7dc437 hwmon/sis5595: Co... |
827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 |
if (PCIBIOS_SUCCESSFUL != pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable)) { dev_err(&dev->dev, "Failed to read enable register "); return -ENODEV; } if (!(enable & 0x80)) { if ((PCIBIOS_SUCCESSFUL != pci_write_config_byte(dev, SIS5595_ENABLE_REG, enable | 0x80)) || (PCIBIOS_SUCCESSFUL != pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable)) || (!(enable & 0x80))) { /* doesn't work for some chips! */ dev_err(&dev->dev, "Failed to enable HWM device "); return -ENODEV; } |
1da177e4c Linux-2.6.12-rc2 |
845 |
} |
17e7dc437 hwmon/sis5595: Co... |
846 847 848 849 850 851 852 853 854 855 |
if (platform_driver_register(&sis5595_driver)) { dev_dbg(&dev->dev, "Failed to register sis5595 driver "); goto exit; } s_bridge = pci_dev_get(dev); /* Sets global pdev as a side effect */ if (sis5595_device_add(address)) goto exit_unregister; |
8fda79ec8 hwmon: (sis5595) ... |
856 857 |
/* * Always return failure here. This is to allow other drivers to bind |
1da177e4c Linux-2.6.12-rc2 |
858 859 860 861 |
* to this pci device. We don't really want to have control over the * pci device, we only wanted to read as few register values from it. */ return -ENODEV; |
17e7dc437 hwmon/sis5595: Co... |
862 863 864 865 866 867 |
exit_unregister: pci_dev_put(dev); platform_driver_unregister(&sis5595_driver); exit: return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 |
} static struct pci_driver sis5595_pci_driver = { .name = "sis5595", .id_table = sis5595_pci_ids, .probe = sis5595_pci_probe, }; static int __init sm_sis5595_init(void) { return pci_register_driver(&sis5595_pci_driver); } static void __exit sm_sis5595_exit(void) { pci_unregister_driver(&sis5595_pci_driver); if (s_bridge != NULL) { |
17e7dc437 hwmon/sis5595: Co... |
885 886 |
platform_device_unregister(pdev); platform_driver_unregister(&sis5595_driver); |
1da177e4c Linux-2.6.12-rc2 |
887 888 889 890 891 892 893 894 895 896 897 |
pci_dev_put(s_bridge); s_bridge = NULL; } } MODULE_AUTHOR("Aurelien Jarno <aurelien@aurel32.net>"); MODULE_DESCRIPTION("SiS 5595 Sensor device"); MODULE_LICENSE("GPL"); module_init(sm_sis5595_init); module_exit(sm_sis5595_exit); |