/*
- asb100.c - Part of lm_sensors, Linux kernel modules for hardware
- monitoring
-
- Copyright (C) 2004 Mark M. Hoffman <mhoffman@lightlink.com>
-
- (derived from w83781d.c)
-
- Copyright (C) 1998 - 2003 Frodo Looijaard <frodol@dds.nl>,
- Philip Edelbrock <phil@netroedge.com>, and
- Mark 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.
-*/
+ * asb100.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ *
+ * Copyright (C) 2004 Mark M. Hoffman <mhoffman@lightlink.com>
+ *
+ * (derived from w83781d.c)
+ *
+ * Copyright (C) 1998 - 2003 Frodo Looijaard <frodol@dds.nl>,
+
* Philip Edelbrock <phil@netroedge.com>, and
+ * Mark 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.
+ */
/*
- This driver supports the hardware sensor chips: Asus ASB100 and
- ASB100-A "BACH".
-
- ASB100-A supports pwm1, while plain ASB100 does not. There is no known
- way for the driver to tell which one is there.
-
- Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
- asb100 7 3 1 4 0x31 0x0694 yes no
-*/
+ * This driver supports the hardware sensor chips: Asus ASB100 and
+ * ASB100-A "BACH".
+ *
+ * ASB100-A supports pwm1, while plain ASB100 does not. There is no known
+ * way for the driver to tell which one is there.
+ *
+ * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
+ * asb100 7 3 1 4 0x31 0x0694 yes no
+ */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
/* bit 7 -> enable, bits 0-3 -> duty cycle */
#define ASB100_REG_PWM1 0x59
-/* CONVERSIONS
- Rounding and limit checking is only done on the TO_REG variants. */
+/*
+ * CONVERSIONS
+ * Rounding and limit checking is only done on the TO_REG variants.
+ */
/* These constants are a guess, consistent w/ w83781d */
-#define ASB100_IN_MIN ( 0)
-#define ASB100_IN_MAX (4080)
+#define ASB100_IN_MIN 0
+#define ASB100_IN_MAX 4080
-/* IN: 1/1000 V (0V to 4.08V)
- REG: 16mV/bit */
+/*
+ * IN: 1/1000 V (0V to 4.08V)
+ * REG: 16mV/bit
+ */
static u8 IN_TO_REG(unsigned val)
{
unsigned nval = SENSORS_LIMIT(val, ASB100_IN_MIN, ASB100_IN_MAX);
static int FAN_FROM_REG(u8 val, int div)
{
- return val==0 ? -1 : val==255 ? 0 : 1350000/(val*div);
+ return val == 0 ? -1 : val == 255 ? 0 : 1350000 / (val * div);
}
/* These constants are a guess, consistent w/ w83781d */
-#define ASB100_TEMP_MIN (-128000)
-#define ASB100_TEMP_MAX ( 127000)
+#define ASB100_TEMP_MIN -128000
+#define ASB100_TEMP_MAX 127000
-/* TEMP: 0.001C/bit (-128C to +127C)
- REG: 1C/bit, two's complement */
+/*
+ * TEMP: 0.001C/bit (-128C to +127C)
+ * REG: 1C/bit, two's complement
+ */
static u8 TEMP_TO_REG(long temp)
{
int ntemp = SENSORS_LIMIT(temp, ASB100_TEMP_MIN, ASB100_TEMP_MAX);
- ntemp += (ntemp<0 ? -500 : 500);
+ ntemp += (ntemp < 0 ? -500 : 500);
return (u8)(ntemp / 1000);
}
return (s8)reg * 1000;
}
-/* PWM: 0 - 255 per sensors documentation
- REG: (6.25% duty cycle per bit) */
+/*
+ * PWM: 0 - 255 per sensors documentation
+ * REG: (6.25% duty cycle per bit)
+ */
static u8 ASB100_PWM_TO_REG(int pwm)
{
pwm = SENSORS_LIMIT(pwm, 0, 255);
#define DIV_FROM_REG(val) (1 << (val))
-/* FAN DIV: 1, 2, 4, or 8 (defaults to 2)
- REG: 0, 1, 2, or 3 (respectively) (defaults to 1) */
+/*
+ * FAN DIV: 1, 2, 4, or 8 (defaults to 2)
+ * REG: 0, 1, 2, or 3 (respectively) (defaults to 1)
+ */
static u8 DIV_TO_REG(long val)
{
- return val==8 ? 3 : val==4 ? 2 : val==1 ? 0 : 1;
+ return val == 8 ? 3 : val == 4 ? 2 : val == 1 ? 0 : 1;
}
-/* For each registered client, we need to keep some data in memory. That
- data is pointed to by client->data. The structure itself is
- dynamically allocated, at the same time the client itself is allocated. */
+/*
+ * For each registered client, we need to keep some data in memory. That
+ * data is pointed to by client->data. The structure itself is
+ * dynamically allocated, at the same time the client itself is allocated.
+ */
struct asb100_data {
struct device *hwmon_dev;
struct mutex lock;
int nr = to_sensor_dev_attr(attr)->index; \
struct i2c_client *client = to_i2c_client(dev); \
struct asb100_data *data = i2c_get_clientdata(client); \
- unsigned long val = simple_strtoul(buf, NULL, 10); \
- \
+ unsigned long val; \
+ int err = kstrtoul(buf, 10, &val); \
+ if (err) \
+ return err; \
mutex_lock(&data->update_lock); \
data->in_##reg[nr] = IN_TO_REG(val); \
asb100_write_value(client, ASB100_REG_IN_##REG(nr), \
int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct asb100_data *data = i2c_get_clientdata(client);
- u32 val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
return count;
}
-/* Note: we save and restore the fan minimum here, because its value is
- determined in part by the fan divisor. This follows the principle of
- least surprise; the user doesn't expect the fan minimum to change just
- because the divisor changed. */
+/*
+ * Note: we save and restore the fan minimum here, because its value is
+ * determined in part by the fan divisor. This follows the principle of
+ * least surprise; the user doesn't expect the fan minimum to change just
+ * because the divisor changed.
+ */
static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct asb100_data *data = i2c_get_clientdata(client);
unsigned long min;
- unsigned long val = simple_strtoul(buf, NULL, 10);
int reg;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
int nr = to_sensor_dev_attr(attr)->index; \
struct i2c_client *client = to_i2c_client(dev); \
struct asb100_data *data = i2c_get_clientdata(client); \
- long val = simple_strtol(buf, NULL, 10); \
- \
+ long val; \
+ int err = kstrtol(buf, 10, &val); \
+ if (err) \
+ return err; \
mutex_lock(&data->update_lock); \
switch (nr) { \
case 1: case 2: \
const char *buf, size_t count)
{
struct asb100_data *data = dev_get_drvdata(dev);
- data->vrm = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+ data->vrm = val;
return count;
}
{
struct i2c_client *client = to_i2c_client(dev);
struct asb100_data *data = i2c_get_clientdata(client);
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->pwm &= 0x80; /* keep the enable bit */
{
struct i2c_client *client = to_i2c_client(dev);
struct asb100_data *data = i2c_get_clientdata(client);
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->pwm &= 0x0f; /* keep the duty cycle bits */
data->fan_min[2] = asb100_read_value(client, ASB100_REG_FAN_MIN(2));
/* Register sysfs hooks */
- if ((err = sysfs_create_group(&client->dev.kobj, &asb100_group)))
+ err = sysfs_create_group(&client->dev.kobj, &asb100_group);
+ if (err)
goto ERROR3;
data->hwmon_dev = hwmon_device_register(&client->dev);
return 0;
}
-/* The SMBus locks itself, usually, but nothing may access the chip between
- bank switches. */
+/*
+ * The SMBus locks itself, usually, but nothing may access the chip between
+ * bank switches.
+ */
static int asb100_read_value(struct i2c_client *client, u16 reg)
{
struct asb100_data *data = i2c_get_clientdata(client);
projects / linux-2.6-block.git / blobdiff