diff options
Diffstat (limited to 'drivers/hwmon/pc87360.c')
| -rw-r--r-- | drivers/hwmon/pc87360.c | 1368 |
1 files changed, 1368 insertions, 0 deletions
diff --git a/drivers/hwmon/pc87360.c b/drivers/hwmon/pc87360.c new file mode 100644 index 00000000000..cf2a35799c7 --- /dev/null +++ b/drivers/hwmon/pc87360.c @@ -0,0 +1,1368 @@ +/* + * pc87360.c - Part of lm_sensors, Linux kernel modules + * for hardware monitoring + * Copyright (C) 2004 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/i2c.h> +#include <linux/i2c-isa.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/hwmon-vid.h> +#include <linux/err.h> +#include <asm/io.h> + +static u8 devid; +static unsigned short address; +static unsigned short extra_isa[3]; +static u8 confreg[4]; + +enum chips { any_chip, pc87360, pc87363, pc87364, pc87365, pc87366 }; + +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"); + +/* + * 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) + +/* + * Client data (each client gets its own) + */ + +struct pc87360_data { + struct i2c_client client; + struct class_device *class_dev; + struct semaphore lock; + struct semaphore 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_detect(struct i2c_adapter *adapter); +static int pc87360_detach_client(struct i2c_client *client); + +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_client(struct i2c_client *client, int use_thermistors); +static struct pc87360_data *pc87360_update_device(struct device *dev); + +/* + * Driver data (common to all clients) + */ + +static struct i2c_driver pc87360_driver = { + .owner = THIS_MODULE, + .name = "pc87360", + .attach_adapter = pc87360_detect, + .detach_client = pc87360_detach_client, +}; + +/* + * 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 i2c_client *client = to_i2c_client(dev); + struct pc87360_data *data = i2c_get_clientdata(client); + long fan_min = simple_strtol(buf, NULL, 10); + + down(&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); + up(&data->update_lock); + + return count; +} + +#define show_and_set_fan(offset) \ +static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ + show_fan_input, NULL, offset-1); \ +static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IWUSR | S_IRUGO, \ + show_fan_min, set_fan_min, offset-1); \ +static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO, \ + show_fan_div, NULL, offset-1); \ +static SENSOR_DEVICE_ATTR(fan##offset##_status, S_IRUGO, \ + show_fan_status, NULL, offset-1); +show_and_set_fan(1) +show_and_set_fan(2) +show_and_set_fan(3) + +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 i2c_client *client = to_i2c_client(dev); + struct pc87360_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&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]); + up(&data->update_lock); + return count; +} + +#define show_and_set_pwm(offset) \ +static SENSOR_DEVICE_ATTR(pwm##offset, S_IWUSR | S_IRUGO, \ + show_pwm, set_pwm, offset-1); +show_and_set_pwm(1) +show_and_set_pwm(2) +show_and_set_pwm(3) + +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 i2c_client *client = to_i2c_client(dev); + struct pc87360_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&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]); + up(&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 i2c_client *client = to_i2c_client(dev); + struct pc87360_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&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]); + up(&data->update_lock); + return count; +} + +#define show_and_set_in(offset) \ +static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ + show_in_input, NULL, offset); \ +static SENSOR_DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \ + show_in_min, set_in_min, offset); \ +static SENSOR_DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \ + show_in_max, set_in_max, offset); \ +static SENSOR_DEVICE_ATTR(in##offset##_status, S_IRUGO, \ + show_in_status, NULL, offset); +show_and_set_in(0) +show_and_set_in(1) +show_and_set_in(2) +show_and_set_in(3) +show_and_set_in(4) +show_and_set_in(5) +show_and_set_in(6) +show_and_set_in(7) +show_and_set_in(8) +show_and_set_in(9) +show_and_set_in(10) + +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 i2c_client *client = to_i2c_client(dev); + struct pc87360_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&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]); + up(&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 i2c_client *client = to_i2c_client(dev); + struct pc87360_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&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]); + up(&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 i2c_client *client = to_i2c_client(dev); + struct pc87360_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&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]); + up(&data->update_lock); + return count; +} + +#define show_and_set_therm(offset) \ +static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ + show_therm_input, NULL, 11+offset-4); \ +static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \ + show_therm_min, set_therm_min, 11+offset-4); \ +static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \ + show_therm_max, set_therm_max, 11+offset-4); \ +static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \ + show_therm_crit, set_therm_crit, 11+offset-4); \ +static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \ + show_therm_status, NULL, 11+offset-4); +show_and_set_therm(4) +show_and_set_therm(5) +show_and_set_therm(6) + +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 = pc87360_update_device(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 i2c_client *client = to_i2c_client(dev); + struct pc87360_data *data = i2c_get_clientdata(client); + 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 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 i2c_client *client = to_i2c_client(dev); + struct pc87360_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&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]); + up(&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 i2c_client *client = to_i2c_client(dev); + struct pc87360_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&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]); + up(&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 i2c_client *client = to_i2c_client(dev); + struct pc87360_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + + down(&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]); + up(&data->update_lock); + return count; +} + +#define show_and_set_temp(offset) \ +static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ + show_temp_input, NULL, offset-1); \ +static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \ + show_temp_min, set_temp_min, offset-1); \ +static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \ + show_temp_max, set_temp_max, offset-1); \ +static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \ + show_temp_crit, set_temp_crit, offset-1); \ +static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \ + show_temp_status, NULL, offset-1); +show_and_set_temp(1) +show_and_set_temp(2) +show_and_set_temp(3) + +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); + +/* + * 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 = 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 pc87360_detect(struct i2c_adapter *adapter) +{ + int i; + struct i2c_client *new_client; + struct pc87360_data *data; + int err = 0; + const char *name = "pc87360"; + int use_thermistors = 0; + + if (!(data = kmalloc(sizeof(struct pc87360_data), GFP_KERNEL))) + return -ENOMEM; + memset(data, 0x00, sizeof(struct pc87360_data)); + + new_client = &data->client; + i2c_set_clientdata(new_client, data); + new_client->addr = address; + init_MUTEX(&data->lock); + new_client->adapter = adapter; + new_client->driver = &pc87360_driver; + new_client->flags = 0; + + 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; + } + + strcpy(new_client->name, name); + data->valid = 0; + init_MUTEX(&data->update_lock); + + for (i = 0; i < 3; i++) { + if (((data->address[i] = extra_isa[i])) + && !request_region(extra_isa[i], PC87360_EXTENT, + pc87360_driver.name)) { + dev_err(&new_client->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); + + if ((err = i2c_attach_client(new_client))) + goto ERROR2; + + /* 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(&new_client->dev, "Using %s reference voltage\n", + (i&0x02) ? "external" : "internal"); + + data->vid_conf = confreg[3]; + data->vrm = 90; + } + + /* 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_client(new_client, use_thermistors); + } + + /* Register sysfs hooks */ + data->class_dev = hwmon_device_register(&new_client->dev); + if (IS_ERR(data->class_dev)) { + err = PTR_ERR(data->class_dev); + goto ERROR3; + } + + if (data->innr) { + device_create_file(&new_client->dev, &sensor_dev_attr_in0_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in1_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in2_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in3_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in4_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in5_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in6_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in7_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in8_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in9_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in10_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in0_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in1_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in2_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in3_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in4_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in5_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in6_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in7_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in8_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in9_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in10_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in0_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in1_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in2_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in3_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in4_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in5_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in6_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in7_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in8_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in9_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in10_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in0_status.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in1_status.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in2_status.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in3_status.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in4_status.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in5_status.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in6_status.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in7_status.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in8_status.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in9_status.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_in10_status.dev_attr); + + device_create_file(&new_client->dev, &dev_attr_cpu0_vid); + device_create_file(&new_client->dev, &dev_attr_vrm); + device_create_file(&new_client->dev, &dev_attr_alarms_in); + } + + if (data->tempnr) { + device_create_file(&new_client->dev, &sensor_dev_attr_temp1_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp2_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp1_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp2_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp1_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp2_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp1_crit.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp2_crit.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp1_status.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp2_status.dev_attr); + + device_create_file(&new_client->dev, &dev_attr_alarms_temp); + } + if (data->tempnr == 3) { + device_create_file(&new_client->dev, &sensor_dev_attr_temp3_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp3_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp3_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp3_crit.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp3_status.dev_attr); + } + if (data->innr == 14) { + device_create_file(&new_client->dev, &sensor_dev_attr_temp4_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp5_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp6_input.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp4_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp5_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp6_min.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp4_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp5_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp6_max.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp4_crit.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp5_crit.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp6_crit.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp4_status.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp5_status.dev_attr); + device_create_file(&new_client->dev, &sensor_dev_attr_temp6_status.dev_attr); + } + + if (data->fannr) { + if (FAN_CONFIG_MONITOR(data->fan_conf, 0)) { + device_create_file(&new_client->dev, + &sensor_dev_attr_fan1_input.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_fan1_min.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_fan1_div.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_fan1_status.dev_attr); + } + + if (FAN_CONFIG_MONITOR(data->fan_conf, 1)) { + device_create_file(&new_client->dev, + &sensor_dev_attr_fan2_input.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_fan2_min.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_fan2_div.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_fan2_status.dev_attr); + } + + if (FAN_CONFIG_CONTROL(data->fan_conf, 0)) + device_create_file(&new_client->dev, &sensor_dev_attr_pwm1.dev_attr); + if (FAN_CONFIG_CONTROL(data->fan_conf, 1)) + device_create_file(&new_client->dev, &sensor_dev_attr_pwm2.dev_attr); + } + if (data->fannr == 3) { + if (FAN_CONFIG_MONITOR(data->fan_conf, 2)) { + device_create_file(&new_client->dev, + &sensor_dev_attr_fan3_input.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_fan3_min.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_fan3_div.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_fan3_status.dev_attr); + } + + if (FAN_CONFIG_CONTROL(data->fan_conf, 2)) + device_create_file(&new_client->dev, &sensor_dev_attr_pwm3.dev_attr); + } + + return 0; + +ERROR3: + i2c_detach_client(new_client); +ERROR2: + for (i = 0; i < 3; i++) { + if (data->address[i]) { + release_region(data->address[i], PC87360_EXTENT); + } + } +ERROR1: + kfree(data); + return err; +} + +static int pc87360_detach_client(struct i2c_client *client) +{ + struct pc87360_data *data = i2c_get_clientdata(client); + int i; + + hwmon_device_unregister(data->class_dev); + + if ((i = i2c_detach_client(client))) + return i; + + 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; + + down(&(data->lock)); + if (bank != NO_BANK) + outb_p(bank, data->address[ldi] + PC87365_REG_BANK); + res = inb_p(data->address[ldi] + reg); + up(&(data->lock)); + + return res; +} + +static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank, + u8 reg, u8 value) +{ + down(&(data->lock)); + if (bank != NO_BANK) + outb_p(bank, data->address[ldi] + PC87365_REG_BANK); + outb_p(value, data->address[ldi] + reg); + up(&(data->lock)); +} + +static void pc87360_init_client(struct i2c_client *client, int use_thermistors) +{ + struct pc87360_data *data = i2c_get_clientdata(client); + 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(&client->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(&client->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(&client->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(&client->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(&client->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(&client->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(&client->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 i2c_client *client, int nr) +{ + struct pc87360_data *data = i2c_get_clientdata(client); + 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(&client->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(&client->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 i2c_client *client = to_i2c_client(dev); + struct pc87360_data *data = i2c_get_clientdata(client); + u8 i; + + down(&data->update_lock); + + if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) { + dev_dbg(&client->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(client, 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; + } + + up(&data->update_lock); + + return data; +} + +static int __init pc87360_init(void) +{ + int i; + + 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; + } + + return i2c_isa_add_driver(&pc87360_driver); +} + +static void __exit pc87360_exit(void) +{ + i2c_isa_del_driver(&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); |