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[PATCH] hwmon: New f71805f driver

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This is my f71805f hardware monitoring driver ported from lm_sensors
to Linux 2.6. This new driver differs from the other hardware monitoring
drivers in that it is implemented as a platform driver. This might not
be optimal yet (we would probably need a generic infrastructure and bus
type for Super-I/O logical devices) but it is certainly much better than
the i2c-isa solution.

Note that this driver requires lm_sensors CVS. I hope to get it
released as 2.10.0 soon.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jean Delvare 2006-01-09 23:26:14 +01:00 committed by Greg Kroah-Hartman
parent 5db3d3da93
commit e53004e20a
5 changed files with 942 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
Documentation/hwmon/sysfs-interface
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@ -179,11 +179,12 @@ temp[1-*]_auto_point[1-*]_temp_hyst
****************
temp[1-3]_type Sensor type selection.
Integers 1, 2, 3 or thermistor Beta value (3435)
Integers 1 to 4 or thermistor Beta value (typically 3435)
Read/Write.
1: PII/Celeron Diode
2: 3904 transistor
3: thermal diode
4: thermistor (default/unknown Beta)
Not all types are supported by all chips
temp[1-4]_max Temperature max value.
@ -261,6 +262,21 @@ alarms Alarm bitmask.
of individual bits.
Bits are defined in kernel/include/sensors.h.
alarms_in Alarm bitmask relative to in (voltage) channels
Read only
A '1' bit means an alarm, LSB corresponds to in0 and so on
Prefered to 'alarms' for newer chips
alarms_fan Alarm bitmask relative to fan channels
Read only
A '1' bit means an alarm, LSB corresponds to fan1 and so on
Prefered to 'alarms' for newer chips
alarms_temp Alarm bitmask relative to temp (temperature) channels
Read only
A '1' bit means an alarm, LSB corresponds to temp1 and so on
Prefered to 'alarms' for newer chips
beep_enable Beep/interrupt enable
0 to disable.
1 to enable.

6
MAINTAINERS
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@ -929,6 +929,12 @@ M: sct@redhat.com, akpm@osdl.org, adilger@clusterfs.com
L: ext3-users@redhat.com
S: Maintained
F71805F HARDWARE MONITORING DRIVER
P: Jean Delvare
M: khali@linux-fr.org
L: lm-sensors@lm-sensors.org
S: Maintained
FARSYNC SYNCHRONOUS DRIVER
P: Kevin Curtis
M: kevin.curtis@farsite.co.uk

10
drivers/hwmon/Kconfig
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@ -113,6 +113,16 @@ config SENSORS_DS1621
This driver can also be built as a module. If so, the module
will be called ds1621.
config SENSORS_F71805F
tristate "Fintek F71805F/FG"
depends on HWMON && EXPERIMENTAL
help
If you say yes here you get support for hardware monitoring
features of the Fintek F71805F/FG chips.
This driver can also be built as a module. If so, the module
will be called f71805f.
config SENSORS_FSCHER
tristate "FSC Hermes"
depends on HWMON && I2C && EXPERIMENTAL

1
drivers/hwmon/Makefile
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@ -18,6 +18,7 @@ obj-$(CONFIG_SENSORS_ADM1031) += adm1031.o
obj-$(CONFIG_SENSORS_ADM9240) += adm9240.o
obj-$(CONFIG_SENSORS_ATXP1) += atxp1.o
obj-$(CONFIG_SENSORS_DS1621) += ds1621.o
obj-$(CONFIG_SENSORS_F71805F) += f71805f.o
obj-$(CONFIG_SENSORS_FSCHER) += fscher.o
obj-$(CONFIG_SENSORS_FSCPOS) += fscpos.o
obj-$(CONFIG_SENSORS_GL518SM) += gl518sm.o

908
drivers/hwmon/f71805f.c Normal file
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@ -0,0 +1,908 @@
/*
* f71805f.c - driver for the Fintek F71805F/FG Super-I/O chip integrated
* hardware monitoring features
* Copyright (C) 2005 Jean Delvare <khali@linux-fr.org>
*
* The F71805F/FG is a LPC Super-I/O chip made by Fintek. It integrates
* complete hardware monitoring features: voltage, fan and temperature
* sensors, and manual and automatic fan speed control.
*
* 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.
*/
#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/err.h>
#include <asm/io.h>
static struct platform_device *pdev;
#define DRVNAME "f71805f"
/*
* Super-I/O constants and functions
*/
#define F71805F_LD_HWM 0x04
#define SIO_REG_LDSEL 0x07 /* Logical device select */
#define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
#define SIO_REG_DEVREV 0x22 /* Device revision */
#define SIO_REG_MANID 0x23 /* Fintek ID (2 bytes) */
#define SIO_REG_ENABLE 0x30 /* Logical device enable */
#define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
#define SIO_FINTEK_ID 0x1934
#define SIO_F71805F_ID 0x0406
static inline int
superio_inb(int base, int reg)
{
outb(reg, base);
return inb(base + 1);
}
static int
superio_inw(int base, int reg)
{
int val;
outb(reg++, base);
val = inb(base + 1) << 8;
outb(reg, base);
val |= inb(base + 1);
return val;
}
static inline void
superio_select(int base, int ld)
{
outb(SIO_REG_LDSEL, base);
outb(ld, base + 1);
}
static inline void
superio_enter(int base)
{
outb(0x87, base);
outb(0x87, base);
}
static inline void
superio_exit(int base)
{
outb(0xaa, base);
}
/*
* ISA constants
*/
#define REGION_LENGTH 2
#define ADDR_REG_OFFSET 0
#define DATA_REG_OFFSET 1
static struct resource f71805f_resource __initdata = {
.flags = IORESOURCE_IO,
};
/*
* Registers
*/
/* in nr from 0 to 8 (8-bit values) */
#define F71805F_REG_IN(nr) (0x10 + (nr))
#define F71805F_REG_IN_HIGH(nr) (0x40 + 2 * (nr))
#define F71805F_REG_IN_LOW(nr) (0x41 + 2 * (nr))
/* fan nr from 0 to 2 (12-bit values, two registers) */
#define F71805F_REG_FAN(nr) (0x20 + 2 * (nr))
#define F71805F_REG_FAN_LOW(nr) (0x28 + 2 * (nr))
#define F71805F_REG_FAN_CTRL(nr) (0x60 + 16 * (nr))
/* temp nr from 0 to 2 (8-bit values) */
#define F71805F_REG_TEMP(nr) (0x1B + (nr))
#define F71805F_REG_TEMP_HIGH(nr) (0x54 + 2 * (nr))
#define F71805F_REG_TEMP_HYST(nr) (0x55 + 2 * (nr))
#define F71805F_REG_TEMP_MODE 0x01
#define F71805F_REG_START 0x00
/* status nr from 0 to 2 */
#define F71805F_REG_STATUS(nr) (0x36 + (nr))
/*
* Data structures and manipulation thereof
*/
struct f71805f_data {
unsigned short addr;
const char *name;
struct semaphore lock;
struct class_device *class_dev;
struct semaphore update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
unsigned long last_limits; /* In jiffies */
/* Register values */
u8 in[9];
u8 in_high[9];
u8 in_low[9];
u16 fan[3];
u16 fan_low[3];
u8 fan_enabled; /* Read once at init time */
u8 temp[3];
u8 temp_high[3];
u8 temp_hyst[3];
u8 temp_mode;
u8 alarms[3];
};
static inline long in_from_reg(u8 reg)
{
return (reg * 8);
}
/* The 2 least significant bits are not used */
static inline u8 in_to_reg(long val)
{
if (val <= 0)
return 0;
if (val >= 2016)
return 0xfc;
return (((val + 16) / 32) << 2);
}
/* in0 is downscaled by a factor 2 internally */
static inline long in0_from_reg(u8 reg)
{
return (reg * 16);
}
static inline u8 in0_to_reg(long val)
{
if (val <= 0)
return 0;
if (val >= 4032)
return 0xfc;
return (((val + 32) / 64) << 2);
}
/* The 4 most significant bits are not used */
static inline long fan_from_reg(u16 reg)
{
reg &= 0xfff;
if (!reg || reg == 0xfff)
return 0;
return (1500000 / reg);
}
static inline u16 fan_to_reg(long rpm)
{
/* If the low limit is set below what the chip can measure,
store the largest possible 12-bit value in the registers,
so that no alarm will ever trigger. */
if (rpm < 367)
return 0xfff;
return (1500000 / rpm);
}
static inline long temp_from_reg(u8 reg)
{
return (reg * 1000);
}
static inline u8 temp_to_reg(long val)
{
if (val < 0)
val = 0;
else if (val > 1000 * 0xff)
val = 0xff;
return ((val + 500) / 1000);
}
/*
* Device I/O access
*/
static u8 f71805f_read8(struct f71805f_data *data, u8 reg)
{
u8 val;
down(&data->lock);
outb(reg, data->addr + ADDR_REG_OFFSET);
val = inb(data->addr + DATA_REG_OFFSET);
up(&data->lock);
return val;
}
static void f71805f_write8(struct f71805f_data *data, u8 reg, u8 val)
{
down(&data->lock);
outb(reg, data->addr + ADDR_REG_OFFSET);
outb(val, data->addr + DATA_REG_OFFSET);
up(&data->lock);
}
/* It is important to read the MSB first, because doing so latches the
value of the LSB, so we are sure both bytes belong to the same value. */
static u16 f71805f_read16(struct f71805f_data *data, u8 reg)
{
u16 val;
down(&data->lock);
outb(reg, data->addr + ADDR_REG_OFFSET);
val = inb(data->addr + DATA_REG_OFFSET) << 8;
outb(++reg, data->addr + ADDR_REG_OFFSET);
val |= inb(data->addr + DATA_REG_OFFSET);
up(&data->lock);
return val;
}
static void f71805f_write16(struct f71805f_data *data, u8 reg, u16 val)
{
down(&data->lock);
outb(reg, data->addr + ADDR_REG_OFFSET);
outb(val >> 8, data->addr + DATA_REG_OFFSET);
outb(++reg, data->addr + ADDR_REG_OFFSET);
outb(val & 0xff, data->addr + DATA_REG_OFFSET);
up(&data->lock);
}
static struct f71805f_data *f71805f_update_device(struct device *dev)
{
struct f71805f_data *data = dev_get_drvdata(dev);
int nr;
down(&data->update_lock);
/* Limit registers cache is refreshed after 60 seconds */
if (time_after(jiffies, data->last_updated + 60 * HZ)
|| !data->valid) {
for (nr = 0; nr < 9; nr++) {
data->in_high[nr] = f71805f_read8(data,
F71805F_REG_IN_HIGH(nr));
data->in_low[nr] = f71805f_read8(data,
F71805F_REG_IN_LOW(nr));
}
for (nr = 0; nr < 3; nr++) {
if (data->fan_enabled & (1 << nr))
data->fan_low[nr] = f71805f_read16(data,
F71805F_REG_FAN_LOW(nr));
}
for (nr = 0; nr < 3; nr++) {
data->temp_high[nr] = f71805f_read8(data,
F71805F_REG_TEMP_HIGH(nr));
data->temp_hyst[nr] = f71805f_read8(data,
F71805F_REG_TEMP_HYST(nr));
}
data->temp_mode = f71805f_read8(data, F71805F_REG_TEMP_MODE);
data->last_limits = jiffies;
}
/* Measurement registers cache is refreshed after 1 second */
if (time_after(jiffies, data->last_updated + HZ)
|| !data->valid) {
for (nr = 0; nr < 9; nr++) {
data->in[nr] = f71805f_read8(data,
F71805F_REG_IN(nr));
}
for (nr = 0; nr < 3; nr++) {
if (data->fan_enabled & (1 << nr))
data->fan[nr] = f71805f_read16(data,
F71805F_REG_FAN(nr));
}
for (nr = 0; nr < 3; nr++) {
data->temp[nr] = f71805f_read8(data,
F71805F_REG_TEMP(nr));
}
for (nr = 0; nr < 3; nr++) {
data->alarms[nr] = f71805f_read8(data,
F71805F_REG_STATUS(nr));
}
data->last_updated = jiffies;
data->valid = 1;
}
up(&data->update_lock);
return data;
}
/*
* Sysfs interface
*/
static ssize_t show_in0(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct f71805f_data *data = f71805f_update_device(dev);
return sprintf(buf, "%ld\n", in0_from_reg(data->in[0]));
}
static ssize_t show_in0_max(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71805f_data *data = f71805f_update_device(dev);
return sprintf(buf, "%ld\n", in0_from_reg(data->in_high[0]));
}
static ssize_t show_in0_min(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71805f_data *data = f71805f_update_device(dev);
return sprintf(buf, "%ld\n", in0_from_reg(data->in_low[0]));
}
static ssize_t set_in0_max(struct device *dev, struct device_attribute
*devattr, const char *buf, size_t count)
{
struct f71805f_data *data = dev_get_drvdata(dev);
long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
data->in_high[0] = in0_to_reg(val);
f71805f_write8(data, F71805F_REG_IN_HIGH(0), data->in_high[0]);
up(&data->update_lock);
return count;
}
static ssize_t set_in0_min(struct device *dev, struct device_attribute
*devattr, const char *buf, size_t count)
{
struct f71805f_data *data = dev_get_drvdata(dev);
long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
data->in_low[0] = in0_to_reg(val);
f71805f_write8(data, F71805F_REG_IN_LOW(0), data->in_low[0]);
up(&data->update_lock);
return count;
}
static DEVICE_ATTR(in0_input, S_IRUGO, show_in0, NULL);
static DEVICE_ATTR(in0_max, S_IRUGO| S_IWUSR, show_in0_max, set_in0_max);
static DEVICE_ATTR(in0_min, S_IRUGO| S_IWUSR, show_in0_min, set_in0_min);
static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct f71805f_data *data = f71805f_update_device(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
return sprintf(buf, "%ld\n", in_from_reg(data->in[nr]));
}
static ssize_t show_in_max(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71805f_data *data = f71805f_update_device(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
return sprintf(buf, "%ld\n", in_from_reg(data->in_high[nr]));
}
static ssize_t show_in_min(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71805f_data *data = f71805f_update_device(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
return sprintf(buf, "%ld\n", in_from_reg(data->in_low[nr]));
}
static ssize_t set_in_max(struct device *dev, struct device_attribute
*devattr, const char *buf, size_t count)
{
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
data->in_high[nr] = in_to_reg(val);
f71805f_write8(data, F71805F_REG_IN_HIGH(nr), data->in_high[nr]);
up(&data->update_lock);
return count;
}
static ssize_t set_in_min(struct device *dev, struct device_attribute
*devattr, const char *buf, size_t count)
{
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
data->in_low[nr] = in_to_reg(val);
f71805f_write8(data, F71805F_REG_IN_LOW(nr), data->in_low[nr]);
up(&data->update_lock);
return count;
}
#define sysfs_in(offset) \
static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
show_in, NULL, offset); \
static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
show_in_max, set_in_max, offset); \
static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
show_in_min, set_in_min, offset)
sysfs_in(1);
sysfs_in(2);
sysfs_in(3);
sysfs_in(4);
sysfs_in(5);
sysfs_in(6);
sysfs_in(7);
sysfs_in(8);
static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct f71805f_data *data = f71805f_update_device(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
return sprintf(buf, "%ld\n", fan_from_reg(data->fan[nr]));
}
static ssize_t show_fan_min(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71805f_data *data = f71805f_update_device(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
return sprintf(buf, "%ld\n", fan_from_reg(data->fan_low[nr]));
}
static ssize_t set_fan_min(struct device *dev, struct device_attribute
*devattr, const char *buf, size_t count)
{
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
data->fan_low[nr] = fan_to_reg(val);
f71805f_write16(data, F71805F_REG_FAN_LOW(nr), data->fan_low[nr]);
up(&data->update_lock);
return count;
}
#define sysfs_fan(offset) \
static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
show_fan, NULL, offset - 1); \
static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
show_fan_min, set_fan_min, offset - 1)
sysfs_fan(1);
sysfs_fan(2);
sysfs_fan(3);
static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct f71805f_data *data = f71805f_update_device(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
return sprintf(buf, "%ld\n", temp_from_reg(data->temp[nr]));
}
static ssize_t show_temp_max(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71805f_data *data = f71805f_update_device(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
return sprintf(buf, "%ld\n", temp_from_reg(data->temp_high[nr]));
}
static ssize_t show_temp_hyst(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71805f_data *data = f71805f_update_device(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
return sprintf(buf, "%ld\n", temp_from_reg(data->temp_hyst[nr]));
}
static ssize_t show_temp_type(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71805f_data *data = f71805f_update_device(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
/* 3 is diode, 4 is thermistor */
return sprintf(buf, "%u\n", (data->temp_mode & (1 << nr)) ? 3 : 4);
}
static ssize_t set_temp_max(struct device *dev, struct device_attribute
*devattr, const char *buf, size_t count)
{
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
data->temp_high[nr] = temp_to_reg(val);
f71805f_write8(data, F71805F_REG_TEMP_HIGH(nr), data->temp_high[nr]);
up(&data->update_lock);
return count;
}
static ssize_t set_temp_hyst(struct device *dev, struct device_attribute
*devattr, const char *buf, size_t count)
{
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
data->temp_hyst[nr] = temp_to_reg(val);
f71805f_write8(data, F71805F_REG_TEMP_HYST(nr), data->temp_hyst[nr]);
up(&data->update_lock);
return count;
}
#define sysfs_temp(offset) \
static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
show_temp, NULL, offset - 1); \
static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
show_temp_max, set_temp_max, offset - 1); \
static SENSOR_DEVICE_ATTR(temp##offset##_max_hyst, S_IRUGO | S_IWUSR, \
show_temp_hyst, set_temp_hyst, offset - 1); \
static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO, \
show_temp_type, NULL, offset - 1)
sysfs_temp(1);
sysfs_temp(2);
sysfs_temp(3);
static ssize_t show_alarms_in(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71805f_data *data = f71805f_update_device(dev);
return sprintf(buf, "%d\n", data->alarms[0] |
((data->alarms[1] & 0x01) << 8));
}
static ssize_t show_alarms_fan(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71805f_data *data = f71805f_update_device(dev);
return sprintf(buf, "%d\n", data->alarms[2] & 0x07);
}
static ssize_t show_alarms_temp(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71805f_data *data = f71805f_update_device(dev);
return sprintf(buf, "%d\n", (data->alarms[1] >> 3) & 0x07);
}
static DEVICE_ATTR(alarms_in, S_IRUGO, show_alarms_in, NULL);
static DEVICE_ATTR(alarms_fan, S_IRUGO, show_alarms_fan, NULL);
static DEVICE_ATTR(alarms_temp, S_IRUGO, show_alarms_temp, NULL);
static ssize_t show_name(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct f71805f_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%s\n", data->name);
}
static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
/*
* Device registration and initialization
*/
static void __devinit f71805f_init_device(struct f71805f_data *data)
{
u8 reg;
int i;
reg = f71805f_read8(data, F71805F_REG_START);
if ((reg & 0x41) != 0x01) {
printk(KERN_DEBUG DRVNAME ": Starting monitoring "
"operations\n");
f71805f_write8(data, F71805F_REG_START, (reg | 0x01) & ~0x40);
}
/* Fan monitoring can be disabled. If it is, we won't be polling
the register values, and won't create the related sysfs files. */
for (i = 0; i < 3; i++) {
reg = f71805f_read8(data, F71805F_REG_FAN_CTRL(i));
if (!(reg & 0x80))
data->fan_enabled |= (1 << i);
}
}
static int __devinit f71805f_probe(struct platform_device *pdev)
{
struct f71805f_data *data;
struct resource *res;
int err;
if (!(data = kzalloc(sizeof(struct f71805f_data), GFP_KERNEL))) {
err = -ENOMEM;
printk(KERN_ERR DRVNAME ": Out of memory\n");
goto exit;
}
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
data->addr = res->start;
init_MUTEX(&data->lock);
data->name = "f71805f";
init_MUTEX(&data->update_lock);
platform_set_drvdata(pdev, data);
data->class_dev = hwmon_device_register(&pdev->dev);
if (IS_ERR(data->class_dev)) {
err = PTR_ERR(data->class_dev);
dev_err(&pdev->dev, "Class registration failed (%d)\n", err);
goto exit_free;
}
/* Initialize the F71805F chip */
f71805f_init_device(data);
/* Register sysfs interface files */
device_create_file(&pdev->dev, &dev_attr_in0_input);
device_create_file(&pdev->dev, &dev_attr_in0_max);
device_create_file(&pdev->dev, &dev_attr_in0_min);
device_create_file(&pdev->dev, &sensor_dev_attr_in1_input.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in2_input.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in3_input.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in4_input.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in5_input.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in6_input.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in7_input.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in8_input.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in1_max.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in2_max.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in3_max.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in4_max.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in5_max.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in6_max.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in7_max.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in8_max.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in1_min.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in2_min.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in3_min.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in4_min.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in5_min.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in6_min.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in7_min.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_in8_min.dev_attr);
if (data->fan_enabled & (1 << 0)) {
device_create_file(&pdev->dev,
&sensor_dev_attr_fan1_input.dev_attr);
device_create_file(&pdev->dev,
&sensor_dev_attr_fan1_min.dev_attr);
}
if (data->fan_enabled & (1 << 1)) {
device_create_file(&pdev->dev,
&sensor_dev_attr_fan2_input.dev_attr);
device_create_file(&pdev->dev,
&sensor_dev_attr_fan2_min.dev_attr);
}
if (data->fan_enabled & (1 << 2)) {
device_create_file(&pdev->dev,
&sensor_dev_attr_fan3_input.dev_attr);
device_create_file(&pdev->dev,
&sensor_dev_attr_fan3_min.dev_attr);
}
device_create_file(&pdev->dev,
&sensor_dev_attr_temp1_input.dev_attr);
device_create_file(&pdev->dev,
&sensor_dev_attr_temp2_input.dev_attr);
device_create_file(&pdev->dev,
&sensor_dev_attr_temp3_input.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_temp1_max.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_temp2_max.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_temp3_max.dev_attr);
device_create_file(&pdev->dev,
&sensor_dev_attr_temp1_max_hyst.dev_attr);
device_create_file(&pdev->dev,
&sensor_dev_attr_temp2_max_hyst.dev_attr);
device_create_file(&pdev->dev,
&sensor_dev_attr_temp3_max_hyst.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_temp1_type.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_temp2_type.dev_attr);
device_create_file(&pdev->dev, &sensor_dev_attr_temp3_type.dev_attr);
device_create_file(&pdev->dev, &dev_attr_alarms_in);
device_create_file(&pdev->dev, &dev_attr_alarms_fan);
device_create_file(&pdev->dev, &dev_attr_alarms_temp);
device_create_file(&pdev->dev, &dev_attr_name);
return 0;
exit_free:
kfree(data);
exit:
return err;
}
static int __devexit f71805f_remove(struct platform_device *pdev)
{
struct f71805f_data *data = platform_get_drvdata(pdev);
platform_set_drvdata(pdev, NULL);
hwmon_device_unregister(data->class_dev);
kfree(data);
return 0;
}
static struct platform_driver f71805f_driver = {
.driver = {
.owner = THIS_MODULE,
.name = DRVNAME,
},
.probe = f71805f_probe,
.remove = __devexit_p(f71805f_remove),
};
static int __init f71805f_device_add(unsigned short address)
{
int err;
pdev = platform_device_alloc(DRVNAME, address);
if (!pdev) {
err = -ENOMEM;
printk(KERN_ERR DRVNAME ": Device allocation failed\n");
goto exit;
}
f71805f_resource.start = address;
f71805f_resource.end = address + REGION_LENGTH - 1;
f71805f_resource.name = pdev->name;
err = platform_device_add_resources(pdev, &f71805f_resource, 1);
if (err) {
printk(KERN_ERR DRVNAME ": Device resource addition failed "
"(%d)\n", err);
goto exit_device_put;
}
err = platform_device_add(pdev);
if (err) {
printk(KERN_ERR DRVNAME ": 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 f71805f_find(int sioaddr, unsigned short *address)
{
int err = -ENODEV;
u16 devid;
superio_enter(sioaddr);
devid = superio_inw(sioaddr, SIO_REG_MANID);
if (devid != SIO_FINTEK_ID)
goto exit;
devid = superio_inw(sioaddr, SIO_REG_DEVID);
if (devid != SIO_F71805F_ID) {
printk(KERN_INFO DRVNAME ": Unsupported Fintek device, "
"skipping\n");
goto exit;
}
superio_select(sioaddr, F71805F_LD_HWM);
if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) {
printk(KERN_WARNING DRVNAME ": Device not activated, "
"skipping\n");
goto exit;
}
*address = superio_inw(sioaddr, SIO_REG_ADDR);
if (*address == 0) {
printk(KERN_WARNING DRVNAME ": Base address not set, "
"skipping\n");
goto exit;
}
err = 0;
printk(KERN_INFO DRVNAME ": Found F71805F chip at %#x, revision %u\n",
*address, superio_inb(sioaddr, SIO_REG_DEVREV));
exit:
superio_exit(sioaddr);
return err;
}
static int __init f71805f_init(void)
{
int err;
unsigned short address;
if (f71805f_find(0x2e, &address)
&& f71805f_find(0x4e, &address))
return -ENODEV;
err = platform_driver_register(&f71805f_driver);
if (err)
goto exit;
/* Sets global pdev as a side effect */
err = f71805f_device_add(address);
if (err)
goto exit_driver;
return 0;
exit_driver:
platform_driver_unregister(&f71805f_driver);
exit:
return err;
}
static void __exit f71805f_exit(void)
{
platform_device_unregister(pdev);
platform_driver_unregister(&f71805f_driver);
}
MODULE_AUTHOR("Jean Delvare <khali@linux-fr>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("F71805F hardware monitoring driver");
module_init(f71805f_init);
module_exit(f71805f_exit);