/* * pc87360.c - Part of lm_sensors, Linux kernel modules * for hardware monitoring * Copyright (C) 2004, 2007 Jean Delvare <khali@linux-fr.org> * * Copied from smsc47m1.c: * Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * * Supports the following chips: * * Chip #vin #fan #pwm #temp devid * PC87360 - 2 2 - 0xE1 * PC87363 - 2 2 - 0xE8 * PC87364 - 3 3 - 0xE4 * PC87365 11 3 3 2 0xE5 * PC87366 11 3 3 3-4 0xE9 * * This driver assumes that no more than one chip is present, and one of * the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F). */ #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 <asm/io.h> static u8 devid; static struct platform_device *pdev; static unsigned short extra_isa[3]; static u8 confreg[4]; static int init = 1; module_param(init, int, 0); MODULE_PARM_DESC(init, "Chip initialization level:\n" " 0: None\n" "*1: Forcibly enable internal voltage and temperature channels, except in9\n" " 2: Forcibly enable all voltage and temperature channels, except in9\n" " 3: Forcibly enable all voltage and temperature channels, including in9"); static unsigned short force_id; module_param(force_id, ushort, 0); MODULE_PARM_DESC(force_id, "Override the detected device ID"); /* * Super-I/O registers and operations */ #define DEV 0x07 /* Register: Logical device select */ #define DEVID 0x20 /* Register: Device ID */ #define ACT 0x30 /* Register: Device activation */ #define BASE 0x60 /* Register: Base address */ #define FSCM 0x09 /* Logical device: fans */ #define VLM 0x0d /* Logical device: voltages */ #define TMS 0x0e /* Logical device: temperatures */ static const u8 logdev[3] = { FSCM, VLM, TMS }; #define LD_FAN 0 #define LD_IN 1 #define LD_TEMP 2 static inline void superio_outb(int sioaddr, int reg, int val) { outb(reg, sioaddr); outb(val, sioaddr+1); } static inline int superio_inb(int sioaddr, int reg) { outb(reg, sioaddr); return inb(sioaddr+1); } static inline void superio_exit(int sioaddr) { outb(0x02, sioaddr); outb(0x02, sioaddr+1); } /* * Logical devices */ #define PC87360_EXTENT 0x10 #define PC87365_REG_BANK 0x09 #define NO_BANK 0xff /* * Fan registers and conversions */ /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */ #define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr)) #define PC87360_REG_PWM(nr) (0x01 + 2 * (nr)) #define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr)) #define PC87360_REG_FAN(nr) (0x07 + 3 * (nr)) #define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr)) #define FAN_FROM_REG(val,div) ((val) == 0 ? 0: \ 480000 / ((val)*(div))) #define FAN_TO_REG(val,div) ((val) <= 100 ? 0 : \ 480000 / ((val)*(div))) #define FAN_DIV_FROM_REG(val) (1 << ((val >> 5) & 0x03)) #define FAN_STATUS_FROM_REG(val) ((val) & 0x07) #define FAN_CONFIG_MONITOR(val,nr) (((val) >> (2 + nr * 3)) & 1) #define FAN_CONFIG_CONTROL(val,nr) (((val) >> (3 + nr * 3)) & 1) #define FAN_CONFIG_INVERT(val,nr) (((val) >> (4 + nr * 3)) & 1) #define PWM_FROM_REG(val,inv) ((inv) ? 255 - (val) : (val)) static inline u8 PWM_TO_REG(int val, int inv) { if (inv) val = 255 - val; if (val < 0) return 0; if (val > 255) return 255; return val; } /* * Voltage registers and conversions */ #define PC87365_REG_IN_CONVRATE 0x07 #define PC87365_REG_IN_CONFIG 0x08 #define PC87365_REG_IN 0x0B #define PC87365_REG_IN_MIN 0x0D #define PC87365_REG_IN_MAX 0x0C #define PC87365_REG_IN_STATUS 0x0A #define PC87365_REG_IN_ALARMS1 0x00 #define PC87365_REG_IN_ALARMS2 0x01 #define PC87365_REG_VID 0x06 #define IN_FROM_REG(val,ref) (((val) * (ref) + 128) / 256) #define IN_TO_REG(val,ref) ((val) < 0 ? 0 : \ (val)*256 >= (ref)*255 ? 255: \ ((val) * 256 + (ref)/2) / (ref)) /* * Temperature registers and conversions */ #define PC87365_REG_TEMP_CONFIG 0x08 #define PC87365_REG_TEMP 0x0B #define PC87365_REG_TEMP_MIN 0x0D #define PC87365_REG_TEMP_MAX 0x0C #define PC87365_REG_TEMP_CRIT 0x0E #define PC87365_REG_TEMP_STATUS 0x0A #define PC87365_REG_TEMP_ALARMS 0x00 #define TEMP_FROM_REG(val) ((val) * 1000) #define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \ (val) > 127000 ? 127 : \ (val) < 0 ? ((val) - 500) / 1000 : \ ((val) + 500) / 1000) /* * Device data */ struct pc87360_data { const char *name; struct device *hwmon_dev; struct mutex lock; struct mutex update_lock; char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ int address[3]; u8 fannr, innr, tempnr; u8 fan[3]; /* Register value */ u8 fan_min[3]; /* Register value */ u8 fan_status[3]; /* Register value */ u8 pwm[3]; /* Register value */ u16 fan_conf; /* Configuration register values, combined */ u16 in_vref; /* 1 mV/bit */ u8 in[14]; /* Register value */ u8 in_min[14]; /* Register value */ u8 in_max[14]; /* Register value */ u8 in_crit[3]; /* Register value */ u8 in_status[14]; /* Register value */ u16 in_alarms; /* Register values, combined, masked */ u8 vid_conf; /* Configuration register value */ u8 vrm; u8 vid; /* Register value */ s8 temp[3]; /* Register value */ s8 temp_min[3]; /* Register value */ s8 temp_max[3]; /* Register value */ s8 temp_crit[3]; /* Register value */ u8 temp_status[3]; /* Register value */ u8 temp_alarms; /* Register value, masked */ }; /* * Functions declaration */ static int pc87360_probe(struct platform_device *pdev); static int __devexit pc87360_remove(struct platform_device *pdev); static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank, u8 reg); static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank, u8 reg, u8 value); static void pc87360_init_device(struct platform_device *pdev, int use_thermistors); static struct pc87360_data *pc87360_update_device(struct device *dev); /* * Driver data */ static struct platform_driver pc87360_driver = { .driver = { .owner = THIS_MODULE, .name = "pc87360", }, .probe = pc87360_probe, .remove = __devexit_p(pc87360_remove), }; /* * Sysfs stuff */ static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index], FAN_DIV_FROM_REG(data->fan_status[attr->index]))); } static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index], FAN_DIV_FROM_REG(data->fan_status[attr->index]))); } static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", FAN_DIV_FROM_REG(data->fan_status[attr->index])); } static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", FAN_STATUS_FROM_REG(data->fan_status[attr->index])); } static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = dev_get_drvdata(dev); long fan_min = simple_strtol(buf, NULL, 10); mutex_lock(&data->update_lock); fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index])); /* If it wouldn't fit, change clock divisor */ while (fan_min > 255 && (data->fan_status[attr->index] & 0x60) != 0x60) { fan_min >>= 1; data->fan[attr->index] >>= 1; data->fan_status[attr->index] += 0x20; } data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min; pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index), data->fan_min[attr->index]); /* Write new divider, preserve alarm bits */ pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index), data->fan_status[attr->index] & 0xF9); mutex_unlock(&data->update_lock); return count; } static struct sensor_device_attribute fan_input[] = { SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0), SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1), SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2), }; static struct sensor_device_attribute fan_status[] = { SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0), SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1), SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2), }; static struct sensor_device_attribute fan_div[] = { SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0), SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1), SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2), }; static struct sensor_device_attribute fan_min[] = { SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0), SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1), SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2), }; #define FAN_UNIT_ATTRS(X) \ &fan_input[X].dev_attr.attr, \ &fan_status[X].dev_attr.attr, \ &fan_div[X].dev_attr.attr, \ &fan_min[X].dev_attr.attr static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", PWM_FROM_REG(data->pwm[attr->index], FAN_CONFIG_INVERT(data->fan_conf, attr->index))); } static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = dev_get_drvdata(dev); long val = simple_strtol(buf, NULL, 10); mutex_lock(&data->update_lock); data->pwm[attr->index] = PWM_TO_REG(val, FAN_CONFIG_INVERT(data->fan_conf, attr->index)); pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index), data->pwm[attr->index]); mutex_unlock(&data->update_lock); return count; } static struct sensor_device_attribute pwm[] = { SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0), SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1), SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2), }; static struct attribute * pc8736x_fan_attr_array[] = { FAN_UNIT_ATTRS(0), FAN_UNIT_ATTRS(1), FAN_UNIT_ATTRS(2), &pwm[0].dev_attr.attr, &pwm[1].dev_attr.attr, &pwm[2].dev_attr.attr, NULL }; static const struct attribute_group pc8736x_fan_group = { .attrs = pc8736x_fan_attr_array, }; static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index], data->in_vref)); } static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index], data->in_vref)); } static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index], data->in_vref)); } static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", data->in_status[attr->index]); } static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = dev_get_drvdata(dev); long val = simple_strtol(buf, NULL, 10); mutex_lock(&data->update_lock); data->in_min[attr->index] = IN_TO_REG(val, data->in_vref); pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN, data->in_min[attr->index]); mutex_unlock(&data->update_lock); return count; } static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = dev_get_drvdata(dev); long val = simple_strtol(buf, NULL, 10); mutex_lock(&data->update_lock); data->in_max[attr->index] = IN_TO_REG(val, data->in_vref); pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX, data->in_max[attr->index]); mutex_unlock(&data->update_lock); return count; } static struct sensor_device_attribute in_input[] = { SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0), SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1), SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2), SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3), SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4), SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5), SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6), SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7), SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8), SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9), SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10), }; static struct sensor_device_attribute in_status[] = { SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0), SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1), SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2), SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3), SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4), SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5), SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6), SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7), SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8), SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9), SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10), }; static struct sensor_device_attribute in_min[] = { SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0), SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1), SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2), SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3), SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4), SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5), SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6), SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7), SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8), SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9), SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10), }; static struct sensor_device_attribute in_max[] = { SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0), SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1), SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2), SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3), SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4), SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5), SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6), SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7), SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8), SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9), SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10), }; #define VIN_UNIT_ATTRS(X) \ &in_input[X].dev_attr.attr, \ &in_status[X].dev_attr.attr, \ &in_min[X].dev_attr.attr, \ &in_max[X].dev_attr.attr static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf) { struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm)); } static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf) { struct pc87360_data *data = dev_get_drvdata(dev); return sprintf(buf, "%u\n", data->vrm); } static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct pc87360_data *data = dev_get_drvdata(dev); data->vrm = simple_strtoul(buf, NULL, 10); return count; } static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf) { struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", data->in_alarms); } static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL); static struct attribute *pc8736x_vin_attr_array[] = { VIN_UNIT_ATTRS(0), VIN_UNIT_ATTRS(1), VIN_UNIT_ATTRS(2), VIN_UNIT_ATTRS(3), VIN_UNIT_ATTRS(4), VIN_UNIT_ATTRS(5), VIN_UNIT_ATTRS(6), VIN_UNIT_ATTRS(7), VIN_UNIT_ATTRS(8), VIN_UNIT_ATTRS(9), VIN_UNIT_ATTRS(10), &dev_attr_cpu0_vid.attr, &dev_attr_vrm.attr, &dev_attr_alarms_in.attr, NULL }; static const struct attribute_group pc8736x_vin_group = { .attrs = pc8736x_vin_attr_array, }; static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index], data->in_vref)); } static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index], data->in_vref)); } static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index], data->in_vref)); } static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11], data->in_vref)); } static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", data->in_status[attr->index]); } static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = dev_get_drvdata(dev); long val = simple_strtol(buf, NULL, 10); mutex_lock(&data->update_lock); data->in_min[attr->index] = IN_TO_REG(val, data->in_vref); pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN, data->in_min[attr->index]); mutex_unlock(&data->update_lock); return count; } static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = dev_get_drvdata(dev); long val = simple_strtol(buf, NULL, 10); mutex_lock(&data->update_lock); data->in_max[attr->index] = IN_TO_REG(val, data->in_vref); pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX, data->in_max[attr->index]); mutex_unlock(&data->update_lock); return count; } static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = dev_get_drvdata(dev); long val = simple_strtol(buf, NULL, 10); mutex_lock(&data->update_lock); data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref); pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT, data->in_crit[attr->index-11]); mutex_unlock(&data->update_lock); return count; } /* the +11 term below reflects the fact that VLM units 11,12,13 are used in the chip to measure voltage across the thermistors */ static struct sensor_device_attribute therm_input[] = { SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0+11), SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1+11), SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2+11), }; static struct sensor_device_attribute therm_status[] = { SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0+11), SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1+11), SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2+11), }; static struct sensor_device_attribute therm_min[] = { SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR, show_therm_min, set_therm_min, 0+11), SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR, show_therm_min, set_therm_min, 1+11), SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR, show_therm_min, set_therm_min, 2+11), }; static struct sensor_device_attribute therm_max[] = { SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR, show_therm_max, set_therm_max, 0+11), SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR, show_therm_max, set_therm_max, 1+11), SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR, show_therm_max, set_therm_max, 2+11), }; static struct sensor_device_attribute therm_crit[] = { SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR, show_therm_crit, set_therm_crit, 0+11), SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR, show_therm_crit, set_therm_crit, 1+11), SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR, show_therm_crit, set_therm_crit, 2+11), }; #define THERM_UNIT_ATTRS(X) \ &therm_input[X].dev_attr.attr, \ &therm_status[X].dev_attr.attr, \ &therm_min[X].dev_attr.attr, \ &therm_max[X].dev_attr.attr, \ &therm_crit[X].dev_attr.attr static struct attribute * pc8736x_therm_attr_array[] = { THERM_UNIT_ATTRS(0), THERM_UNIT_ATTRS(1), THERM_UNIT_ATTRS(2), NULL }; static const struct attribute_group pc8736x_therm_group = { .attrs = pc8736x_therm_attr_array, }; static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index])); } static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index])); } static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index])); } static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index])); } static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%d\n", data->temp_status[attr->index]); } static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = dev_get_drvdata(dev); long val = simple_strtol(buf, NULL, 10); mutex_lock(&data->update_lock); data->temp_min[attr->index] = TEMP_TO_REG(val); pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN, data->temp_min[attr->index]); mutex_unlock(&data->update_lock); return count; } static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = dev_get_drvdata(dev); long val = simple_strtol(buf, NULL, 10); mutex_lock(&data->update_lock); data->temp_max[attr->index] = TEMP_TO_REG(val); pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX, data->temp_max[attr->index]); mutex_unlock(&data->update_lock); return count; } static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87360_data *data = dev_get_drvdata(dev); long val = simple_strtol(buf, NULL, 10); mutex_lock(&data->update_lock); data->temp_crit[attr->index] = TEMP_TO_REG(val); pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT, data->temp_crit[attr->index]); mutex_unlock(&data->update_lock); return count; } static struct sensor_device_attribute temp_input[] = { SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0), SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1), SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2), }; static struct sensor_device_attribute temp_status[] = { SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0), SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1), SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2), }; static struct sensor_device_attribute temp_min[] = { SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR, show_temp_min, set_temp_min, 0), SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR, show_temp_min, set_temp_min, 1), SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR, show_temp_min, set_temp_min, 2), }; static struct sensor_device_attribute temp_max[] = { SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp_max, set_temp_max, 0), SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR, show_temp_max, set_temp_max, 1), SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR, show_temp_max, set_temp_max, 2), }; static struct sensor_device_attribute temp_crit[] = { SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR, show_temp_crit, set_temp_crit, 0), SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR, show_temp_crit, set_temp_crit, 1), SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR, show_temp_crit, set_temp_crit, 2), }; static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf) { struct pc87360_data *data = pc87360_update_device(dev); return sprintf(buf, "%u\n", data->temp_alarms); } static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL); #define TEMP_UNIT_ATTRS(X) \ &temp_input[X].dev_attr.attr, \ &temp_status[X].dev_attr.attr, \ &temp_min[X].dev_attr.attr, \ &temp_max[X].dev_attr.attr, \ &temp_crit[X].dev_attr.attr static struct attribute * pc8736x_temp_attr_array[] = { TEMP_UNIT_ATTRS(0), TEMP_UNIT_ATTRS(1), TEMP_UNIT_ATTRS(2), /* include the few miscellaneous atts here */ &dev_attr_alarms_temp.attr, NULL }; static const struct attribute_group pc8736x_temp_group = { .attrs = pc8736x_temp_attr_array, }; static ssize_t show_name(struct device *dev, struct device_attribute *devattr, char *buf) { struct pc87360_data *data = dev_get_drvdata(dev); return sprintf(buf, "%s\n", data->name); } static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); /* * Device detection, registration and update */ static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses) { u16 val; int i; int nrdev; /* logical device count */ /* No superio_enter */ /* Identify device */ val = force_id ? force_id : superio_inb(sioaddr, DEVID); switch (val) { case 0xE1: /* PC87360 */ case 0xE8: /* PC87363 */ case 0xE4: /* PC87364 */ nrdev = 1; break; case 0xE5: /* PC87365 */ case 0xE9: /* PC87366 */ nrdev = 3; break; default: superio_exit(sioaddr); return -ENODEV; } /* Remember the device id */ *devid = val; for (i = 0; i < nrdev; i++) { /* select logical device */ superio_outb(sioaddr, DEV, logdev[i]); val = superio_inb(sioaddr, ACT); if (!(val & 0x01)) { printk(KERN_INFO "pc87360: Device 0x%02x not " "activated\n", logdev[i]); continue; } val = (superio_inb(sioaddr, BASE) << 8) | superio_inb(sioaddr, BASE + 1); if (!val) { printk(KERN_INFO "pc87360: Base address not set for " "device 0x%02x\n", logdev[i]); continue; } addresses[i] = val; if (i==0) { /* Fans */ confreg[0] = superio_inb(sioaddr, 0xF0); confreg[1] = superio_inb(sioaddr, 0xF1); #ifdef DEBUG printk(KERN_DEBUG "pc87360: Fan 1: mon=%d " "ctrl=%d inv=%d\n", (confreg[0]>>2)&1, (confreg[0]>>3)&1, (confreg[0]>>4)&1); printk(KERN_DEBUG "pc87360: Fan 2: mon=%d " "ctrl=%d inv=%d\n", (confreg[0]>>5)&1, (confreg[0]>>6)&1, (confreg[0]>>7)&1); printk(KERN_DEBUG "pc87360: Fan 3: mon=%d " "ctrl=%d inv=%d\n", confreg[1]&1, (confreg[1]>>1)&1, (confreg[1]>>2)&1); #endif } else if (i==1) { /* Voltages */ /* Are we using thermistors? */ if (*devid == 0xE9) { /* PC87366 */ /* These registers are not logical-device specific, just that we won't need them if we don't use the VLM device */ confreg[2] = superio_inb(sioaddr, 0x2B); confreg[3] = superio_inb(sioaddr, 0x25); if (confreg[2] & 0x40) { printk(KERN_INFO "pc87360: Using " "thermistors for temperature " "monitoring\n"); } if (confreg[3] & 0xE0) { printk(KERN_INFO "pc87360: VID " "inputs routed (mode %u)\n", confreg[3] >> 5); } } } } superio_exit(sioaddr); return 0; } static int __devinit pc87360_probe(struct platform_device *pdev) { int i; struct pc87360_data *data; int err = 0; const char *name = "pc87360"; int use_thermistors = 0; struct device *dev = &pdev->dev; if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL))) return -ENOMEM; data->fannr = 2; data->innr = 0; data->tempnr = 0; switch (devid) { case 0xe8: name = "pc87363"; break; case 0xe4: name = "pc87364"; data->fannr = 3; break; case 0xe5: name = "pc87365"; data->fannr = extra_isa[0] ? 3 : 0; data->innr = extra_isa[1] ? 11 : 0; data->tempnr = extra_isa[2] ? 2 : 0; break; case 0xe9: name = "pc87366"; data->fannr = extra_isa[0] ? 3 : 0; data->innr = extra_isa[1] ? 14 : 0; data->tempnr = extra_isa[2] ? 3 : 0; break; } data->name = name; data->valid = 0; mutex_init(&data->lock); mutex_init(&data->update_lock); platform_set_drvdata(pdev, data); for (i = 0; i < 3; i++) { if (((data->address[i] = extra_isa[i])) && !request_region(extra_isa[i], PC87360_EXTENT, pc87360_driver.driver.name)) { dev_err(dev, "Region 0x%x-0x%x already " "in use!\n", extra_isa[i], extra_isa[i]+PC87360_EXTENT-1); for (i--; i >= 0; i--) release_region(extra_isa[i], PC87360_EXTENT); err = -EBUSY; goto ERROR1; } } /* Retrieve the fans configuration from Super-I/O space */ if (data->fannr) data->fan_conf = confreg[0] | (confreg[1] << 8); /* Use the correct reference voltage Unless both the VLM and the TMS logical devices agree to use an external Vref, the internal one is used. */ if (data->innr) { i = pc87360_read_value(data, LD_IN, NO_BANK, PC87365_REG_IN_CONFIG); if (data->tempnr) { i &= pc87360_read_value(data, LD_TEMP, NO_BANK, PC87365_REG_TEMP_CONFIG); } data->in_vref = (i&0x02) ? 3025 : 2966; dev_dbg(dev, "Using %s reference voltage\n", (i&0x02) ? "external" : "internal"); data->vid_conf = confreg[3]; data->vrm = vid_which_vrm(); } /* Fan clock dividers may be needed before any data is read */ for (i = 0; i < data->fannr; i++) { if (FAN_CONFIG_MONITOR(data->fan_conf, i)) data->fan_status[i] = pc87360_read_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(i)); } if (init > 0) { if (devid == 0xe9 && data->address[1]) /* PC87366 */ use_thermistors = confreg[2] & 0x40; pc87360_init_device(pdev, use_thermistors); } /* Register all-or-nothing sysfs groups */ if (data->innr && (err = sysfs_create_group(&dev->kobj, &pc8736x_vin_group))) goto ERROR3; if (data->innr == 14 && (err = sysfs_create_group(&dev->kobj, &pc8736x_therm_group))) goto ERROR3; /* create device attr-files for varying sysfs groups */ if (data->tempnr) { for (i = 0; i < data->tempnr; i++) { if ((err = device_create_file(dev, &temp_input[i].dev_attr)) || (err = device_create_file(dev, &temp_min[i].dev_attr)) || (err = device_create_file(dev, &temp_max[i].dev_attr)) || (err = device_create_file(dev, &temp_crit[i].dev_attr)) || (err = device_create_file(dev, &temp_status[i].dev_attr))) goto ERROR3; } if ((err = device_create_file(dev, &dev_attr_alarms_temp))) goto ERROR3; } for (i = 0; i < data->fannr; i++) { if (FAN_CONFIG_MONITOR(data->fan_conf, i) && ((err = device_create_file(dev, &fan_input[i].dev_attr)) || (err = device_create_file(dev, &fan_min[i].dev_attr)) || (err = device_create_file(dev, &fan_div[i].dev_attr)) || (err = device_create_file(dev, &fan_status[i].dev_attr)))) goto ERROR3; if (FAN_CONFIG_CONTROL(data->fan_conf, i) && (err = device_create_file(dev, &pwm[i].dev_attr))) goto ERROR3; } if ((err = device_create_file(dev, &dev_attr_name))) goto ERROR3; data->hwmon_dev = hwmon_device_register(dev); if (IS_ERR(data->hwmon_dev)) { err = PTR_ERR(data->hwmon_dev); goto ERROR3; } return 0; ERROR3: device_remove_file(dev, &dev_attr_name); /* can still remove groups whose members were added individually */ sysfs_remove_group(&dev->kobj, &pc8736x_temp_group); sysfs_remove_group(&dev->kobj, &pc8736x_fan_group); sysfs_remove_group(&dev->kobj, &pc8736x_therm_group); sysfs_remove_group(&dev->kobj, &pc8736x_vin_group); for (i = 0; i < 3; i++) { if (data->address[i]) { release_region(data->address[i], PC87360_EXTENT); } } ERROR1: kfree(data); return err; } static int __devexit pc87360_remove(struct platform_device *pdev) { struct pc87360_data *data = platform_get_drvdata(pdev); int i; hwmon_device_unregister(data->hwmon_dev); device_remove_file(&pdev->dev, &dev_attr_name); sysfs_remove_group(&pdev->dev.kobj, &pc8736x_temp_group); sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_group); sysfs_remove_group(&pdev->dev.kobj, &pc8736x_therm_group); sysfs_remove_group(&pdev->dev.kobj, &pc8736x_vin_group); for (i = 0; i < 3; i++) { if (data->address[i]) { release_region(data->address[i], PC87360_EXTENT); } } kfree(data); return 0; } /* ldi is the logical device index bank is for voltages and temperatures only */ static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank, u8 reg) { int res; mutex_lock(&(data->lock)); if (bank != NO_BANK) outb_p(bank, data->address[ldi] + PC87365_REG_BANK); res = inb_p(data->address[ldi] + reg); mutex_unlock(&(data->lock)); return res; } static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank, u8 reg, u8 value) { mutex_lock(&(data->lock)); if (bank != NO_BANK) outb_p(bank, data->address[ldi] + PC87365_REG_BANK); outb_p(value, data->address[ldi] + reg); mutex_unlock(&(data->lock)); } static void pc87360_init_device(struct platform_device *pdev, int use_thermistors) { struct pc87360_data *data = platform_get_drvdata(pdev); int i, nr; const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 }; const u8 init_temp[3] = { 2, 2, 1 }; u8 reg; if (init >= 2 && data->innr) { reg = pc87360_read_value(data, LD_IN, NO_BANK, PC87365_REG_IN_CONVRATE); dev_info(&pdev->dev, "VLM conversion set to " "1s period, 160us delay\n"); pc87360_write_value(data, LD_IN, NO_BANK, PC87365_REG_IN_CONVRATE, (reg & 0xC0) | 0x11); } nr = data->innr < 11 ? data->innr : 11; for (i = 0; i < nr; i++) { if (init >= init_in[i]) { /* Forcibly enable voltage channel */ reg = pc87360_read_value(data, LD_IN, i, PC87365_REG_IN_STATUS); if (!(reg & 0x01)) { dev_dbg(&pdev->dev, "Forcibly " "enabling in%d\n", i); pc87360_write_value(data, LD_IN, i, PC87365_REG_IN_STATUS, (reg & 0x68) | 0x87); } } } /* We can't blindly trust the Super-I/O space configuration bit, most BIOS won't set it properly */ for (i = 11; i < data->innr; i++) { reg = pc87360_read_value(data, LD_IN, i, PC87365_REG_TEMP_STATUS); use_thermistors = use_thermistors || (reg & 0x01); } i = use_thermistors ? 2 : 0; for (; i < data->tempnr; i++) { if (init >= init_temp[i]) { /* Forcibly enable temperature channel */ reg = pc87360_read_value(data, LD_TEMP, i, PC87365_REG_TEMP_STATUS); if (!(reg & 0x01)) { dev_dbg(&pdev->dev, "Forcibly " "enabling temp%d\n", i+1); pc87360_write_value(data, LD_TEMP, i, PC87365_REG_TEMP_STATUS, 0xCF); } } } if (use_thermistors) { for (i = 11; i < data->innr; i++) { if (init >= init_in[i]) { /* The pin may already be used by thermal diodes */ reg = pc87360_read_value(data, LD_TEMP, (i-11)/2, PC87365_REG_TEMP_STATUS); if (reg & 0x01) { dev_dbg(&pdev->dev, "Skipping " "temp%d, pin already in use " "by temp%d\n", i-7, (i-11)/2); continue; } /* Forcibly enable thermistor channel */ reg = pc87360_read_value(data, LD_IN, i, PC87365_REG_IN_STATUS); if (!(reg & 0x01)) { dev_dbg(&pdev->dev, "Forcibly " "enabling temp%d\n", i-7); pc87360_write_value(data, LD_IN, i, PC87365_REG_TEMP_STATUS, (reg & 0x60) | 0x8F); } } } } if (data->innr) { reg = pc87360_read_value(data, LD_IN, NO_BANK, PC87365_REG_IN_CONFIG); if (reg & 0x01) { dev_dbg(&pdev->dev, "Forcibly " "enabling monitoring (VLM)\n"); pc87360_write_value(data, LD_IN, NO_BANK, PC87365_REG_IN_CONFIG, reg & 0xFE); } } if (data->tempnr) { reg = pc87360_read_value(data, LD_TEMP, NO_BANK, PC87365_REG_TEMP_CONFIG); if (reg & 0x01) { dev_dbg(&pdev->dev, "Forcibly enabling " "monitoring (TMS)\n"); pc87360_write_value(data, LD_TEMP, NO_BANK, PC87365_REG_TEMP_CONFIG, reg & 0xFE); } if (init >= 2) { /* Chip config as documented by National Semi. */ pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08); /* We voluntarily omit the bank here, in case the sequence itself matters. It shouldn't be a problem, since nobody else is supposed to access the device at that point. */ pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04); pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35); pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05); pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05); } } } static void pc87360_autodiv(struct device *dev, int nr) { struct pc87360_data *data = dev_get_drvdata(dev); u8 old_min = data->fan_min[nr]; /* Increase clock divider if needed and possible */ if ((data->fan_status[nr] & 0x04) /* overflow flag */ || (data->fan[nr] >= 224)) { /* next to overflow */ if ((data->fan_status[nr] & 0x60) != 0x60) { data->fan_status[nr] += 0x20; data->fan_min[nr] >>= 1; data->fan[nr] >>= 1; dev_dbg(dev, "Increasing " "clock divider to %d for fan %d\n", FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1); } } else { /* Decrease clock divider if possible */ while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */ && data->fan[nr] < 85 /* bad accuracy */ && (data->fan_status[nr] & 0x60) != 0x00) { data->fan_status[nr] -= 0x20; data->fan_min[nr] <<= 1; data->fan[nr] <<= 1; dev_dbg(dev, "Decreasing " "clock divider to %d for fan %d\n", FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1); } } /* Write new fan min if it changed */ if (old_min != data->fan_min[nr]) { pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(nr), data->fan_min[nr]); } } static struct pc87360_data *pc87360_update_device(struct device *dev) { struct pc87360_data *data = dev_get_drvdata(dev); u8 i; mutex_lock(&data->update_lock); if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) { dev_dbg(dev, "Data update\n"); /* Fans */ for (i = 0; i < data->fannr; i++) { if (FAN_CONFIG_MONITOR(data->fan_conf, i)) { data->fan_status[i] = pc87360_read_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(i)); data->fan[i] = pc87360_read_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN(i)); data->fan_min[i] = pc87360_read_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(i)); /* Change clock divider if needed */ pc87360_autodiv(dev, i); /* Clear bits and write new divider */ pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(i), data->fan_status[i]); } if (FAN_CONFIG_CONTROL(data->fan_conf, i)) data->pwm[i] = pc87360_read_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(i)); } /* Voltages */ for (i = 0; i < data->innr; i++) { data->in_status[i] = pc87360_read_value(data, LD_IN, i, PC87365_REG_IN_STATUS); /* Clear bits */ pc87360_write_value(data, LD_IN, i, PC87365_REG_IN_STATUS, data->in_status[i]); if ((data->in_status[i] & 0x81) == 0x81) { data->in[i] = pc87360_read_value(data, LD_IN, i, PC87365_REG_IN); } if (data->in_status[i] & 0x01) { data->in_min[i] = pc87360_read_value(data, LD_IN, i, PC87365_REG_IN_MIN); data->in_max[i] = pc87360_read_value(data, LD_IN, i, PC87365_REG_IN_MAX); if (i >= 11) data->in_crit[i-11] = pc87360_read_value(data, LD_IN, i, PC87365_REG_TEMP_CRIT); } } if (data->innr) { data->in_alarms = pc87360_read_value(data, LD_IN, NO_BANK, PC87365_REG_IN_ALARMS1) | ((pc87360_read_value(data, LD_IN, NO_BANK, PC87365_REG_IN_ALARMS2) & 0x07) << 8); data->vid = (data->vid_conf & 0xE0) ? pc87360_read_value(data, LD_IN, NO_BANK, PC87365_REG_VID) : 0x1F; } /* Temperatures */ for (i = 0; i < data->tempnr; i++) { data->temp_status[i] = pc87360_read_value(data, LD_TEMP, i, PC87365_REG_TEMP_STATUS); /* Clear bits */ pc87360_write_value(data, LD_TEMP, i, PC87365_REG_TEMP_STATUS, data->temp_status[i]); if ((data->temp_status[i] & 0x81) == 0x81) { data->temp[i] = pc87360_read_value(data, LD_TEMP, i, PC87365_REG_TEMP); } if (data->temp_status[i] & 0x01) { data->temp_min[i] = pc87360_read_value(data, LD_TEMP, i, PC87365_REG_TEMP_MIN); data->temp_max[i] = pc87360_read_value(data, LD_TEMP, i, PC87365_REG_TEMP_MAX); data->temp_crit[i] = pc87360_read_value(data, LD_TEMP, i, PC87365_REG_TEMP_CRIT); } } if (data->tempnr) { data->temp_alarms = pc87360_read_value(data, LD_TEMP, NO_BANK, PC87365_REG_TEMP_ALARMS) & 0x3F; } data->last_updated = jiffies; data->valid = 1; } mutex_unlock(&data->update_lock); return data; } static int __init pc87360_device_add(unsigned short address) { struct resource res = { .name = "pc87360", .flags = IORESOURCE_IO, }; int err, i; pdev = platform_device_alloc("pc87360", address); if (!pdev) { err = -ENOMEM; printk(KERN_ERR "pc87360: Device allocation failed\n"); goto exit; } for (i = 0; i < 3; i++) { if (!extra_isa[i]) continue; res.start = extra_isa[i]; res.end = extra_isa[i] + PC87360_EXTENT - 1; err = platform_device_add_resources(pdev, &res, 1); if (err) { printk(KERN_ERR "pc87360: Device resource[%d] " "addition failed (%d)\n", i, err); goto exit_device_put; } } err = platform_device_add(pdev); if (err) { printk(KERN_ERR "pc87360: Device addition failed (%d)\n", err); goto exit_device_put; } return 0; exit_device_put: platform_device_put(pdev); exit: return err; } static int __init pc87360_init(void) { int err, i; unsigned short address = 0; if (pc87360_find(0x2e, &devid, extra_isa) && pc87360_find(0x4e, &devid, extra_isa)) { printk(KERN_WARNING "pc87360: PC8736x not detected, " "module not inserted.\n"); return -ENODEV; } /* Arbitrarily pick one of the addresses */ for (i = 0; i < 3; i++) { if (extra_isa[i] != 0x0000) { address = extra_isa[i]; break; } } if (address == 0x0000) { printk(KERN_WARNING "pc87360: No active logical device, " "module not inserted.\n"); return -ENODEV; } err = platform_driver_register(&pc87360_driver); if (err) goto exit; /* Sets global pdev as a side effect */ err = pc87360_device_add(address); if (err) goto exit_driver; return 0; exit_driver: platform_driver_unregister(&pc87360_driver); exit: return err; } static void __exit pc87360_exit(void) { platform_device_unregister(pdev); platform_driver_unregister(&pc87360_driver); } MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>"); MODULE_DESCRIPTION("PC8736x hardware monitor"); MODULE_LICENSE("GPL"); module_init(pc87360_init); module_exit(pc87360_exit);