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https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git
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[PATCH] smsc47m192: New hwmon driver for SMSC LPC47M192/997
New driver (smsc47m192) which supports voltage and temperature measurement features of SMSC LPC47M192 and LPC47M997 chips. Signed-off-by: Hartmut Rick <[email protected]> Signed-off-by: Jean Delvare <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Hartmut Rick
Greg Kroah-Hartman
parent
a4589dbb4e
commit
59ac83677f
5 changed files with 779 additions and 1 deletions
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@ -333,11 +333,32 @@ config SENSORS_SMSC47M1
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help
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If you say yes here you get support for the integrated fan
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monitoring and control capabilities of the SMSC LPC47B27x,
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LPC47M10x, LPC47M13x, LPC47M14x, LPC47M15x and LPC47M192 chips.
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LPC47M10x, LPC47M13x, LPC47M14x, LPC47M15x, LPC47M192 and
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LPC47M997 chips.
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The temperature and voltage sensor features of the LPC47M192
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and LPC47M997 are supported by another driver, select also
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"SMSC LPC47M192 and compatibles" below for those.
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This driver can also be built as a module. If so, the module
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will be called smsc47m1.
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config SENSORS_SMSC47M192
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tristate "SMSC LPC47M192 and compatibles"
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depends on HWMON && I2C && EXPERIMENTAL
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select HWMON_VID
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help
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If you say yes here you get support for the temperature and
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voltage sensors of the SMSC LPC47M192 and LPC47M997 chips.
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The fan monitoring and control capabilities of these chips
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are supported by another driver, select
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"SMSC LPC47M10x and compatibles" above. You need both drivers
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if you want fan control and voltage/temperature sensor support.
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This driver can also be built as a module. If so, the module
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will be called smsc47m192.
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config SENSORS_SMSC47B397
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tristate "SMSC LPC47B397-NC"
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depends on HWMON && I2C && EXPERIMENTAL
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@ -40,6 +40,7 @@ obj-$(CONFIG_SENSORS_PC87360) += pc87360.o
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obj-$(CONFIG_SENSORS_SIS5595) += sis5595.o
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obj-$(CONFIG_SENSORS_SMSC47B397)+= smsc47b397.o
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obj-$(CONFIG_SENSORS_SMSC47M1) += smsc47m1.o
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obj-$(CONFIG_SENSORS_SMSC47M192)+= smsc47m192.o
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obj-$(CONFIG_SENSORS_VIA686A) += via686a.o
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obj-$(CONFIG_SENSORS_VT8231) += vt8231.o
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obj-$(CONFIG_SENSORS_W83627EHF) += w83627ehf.o
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648
drivers/hwmon/smsc47m192.c
Normal file
648
drivers/hwmon/smsc47m192.c
Normal file
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@ -0,0 +1,648 @@
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/*
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smsc47m192.c - Support for hardware monitoring block of
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SMSC LPC47M192 and LPC47M997 Super I/O chips
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Copyright (C) 2006 Hartmut Rick <linux@rick.claranet.de>
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Derived from lm78.c and other chip drivers.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/jiffies.h>
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#include <linux/i2c.h>
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#include <linux/hwmon.h>
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#include <linux/hwmon-sysfs.h>
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#include <linux/hwmon-vid.h>
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#include <linux/err.h>
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/* Addresses to scan */
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static unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
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/* Insmod parameters */
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I2C_CLIENT_INSMOD_1(smsc47m192);
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/* SMSC47M192 registers */
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#define SMSC47M192_REG_IN(nr) ((nr)<6 ? (0x20 + (nr)) : \
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(0x50 + (nr) - 6))
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#define SMSC47M192_REG_IN_MAX(nr) ((nr)<6 ? (0x2b + (nr) * 2) : \
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(0x54 + (((nr) - 6) * 2)))
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#define SMSC47M192_REG_IN_MIN(nr) ((nr)<6 ? (0x2c + (nr) * 2) : \
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(0x55 + (((nr) - 6) * 2)))
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static u8 SMSC47M192_REG_TEMP[3] = { 0x27, 0x26, 0x52 };
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static u8 SMSC47M192_REG_TEMP_MAX[3] = { 0x39, 0x37, 0x58 };
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static u8 SMSC47M192_REG_TEMP_MIN[3] = { 0x3A, 0x38, 0x59 };
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#define SMSC47M192_REG_TEMP_OFFSET(nr) ((nr)==2 ? 0x1e : 0x1f)
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#define SMSC47M192_REG_ALARM1 0x41
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#define SMSC47M192_REG_ALARM2 0x42
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#define SMSC47M192_REG_VID 0x47
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#define SMSC47M192_REG_VID4 0x49
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#define SMSC47M192_REG_CONFIG 0x40
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#define SMSC47M192_REG_SFR 0x4f
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#define SMSC47M192_REG_COMPANY_ID 0x3e
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#define SMSC47M192_REG_VERSION 0x3f
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/* generalised scaling with integer rounding */
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static inline int SCALE(long val, int mul, int div)
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{
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if (val < 0)
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return (val * mul - div / 2) / div;
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else
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return (val * mul + div / 2) / div;
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}
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/* Conversions */
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/* smsc47m192 internally scales voltage measurements */
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static const u16 nom_mv[] = { 2500, 2250, 3300, 5000, 12000, 3300, 1500, 1800 };
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static inline unsigned int IN_FROM_REG(u8 reg, int n)
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{
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return SCALE(reg, nom_mv[n], 192);
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}
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static inline u8 IN_TO_REG(unsigned long val, int n)
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{
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return SENSORS_LIMIT(SCALE(val, 192, nom_mv[n]), 0, 255);
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}
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/* TEMP: 0.001 degC units (-128C to +127C)
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REG: 1C/bit, two's complement */
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static inline s8 TEMP_TO_REG(int val)
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{
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return SENSORS_LIMIT(SCALE(val, 1, 1000), -128000, 127000);
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}
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static inline int TEMP_FROM_REG(s8 val)
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{
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return val * 1000;
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}
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struct smsc47m192_data {
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struct i2c_client client;
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struct class_device *class_dev;
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struct semaphore update_lock;
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char valid; /* !=0 if following fields are valid */
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unsigned long last_updated; /* In jiffies */
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u8 in[8]; /* Register value */
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u8 in_max[8]; /* Register value */
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u8 in_min[8]; /* Register value */
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s8 temp[3]; /* Register value */
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s8 temp_max[3]; /* Register value */
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s8 temp_min[3]; /* Register value */
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s8 temp_offset[3]; /* Register value */
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u16 alarms; /* Register encoding, combined */
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u8 vid; /* Register encoding, combined */
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u8 vrm;
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};
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static int smsc47m192_attach_adapter(struct i2c_adapter *adapter);
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static int smsc47m192_detect(struct i2c_adapter *adapter, int address,
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int kind);
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static int smsc47m192_detach_client(struct i2c_client *client);
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static struct smsc47m192_data *smsc47m192_update_device(struct device *dev);
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static struct i2c_driver smsc47m192_driver = {
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.driver = {
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.name = "smsc47m192",
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},
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.attach_adapter = smsc47m192_attach_adapter,
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.detach_client = smsc47m192_detach_client,
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};
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/* Voltages */
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static ssize_t show_in(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
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int nr = sensor_attr->index;
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struct smsc47m192_data *data = smsc47m192_update_device(dev);
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return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr], nr));
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}
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static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
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int nr = sensor_attr->index;
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struct smsc47m192_data *data = smsc47m192_update_device(dev);
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return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr], nr));
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}
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static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
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int nr = sensor_attr->index;
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struct smsc47m192_data *data = smsc47m192_update_device(dev);
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return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr], nr));
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}
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static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
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int nr = sensor_attr->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct smsc47m192_data *data = i2c_get_clientdata(client);
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unsigned long val = simple_strtoul(buf, NULL, 10);
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down(&data->update_lock);
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data->in_min[nr] = IN_TO_REG(val, nr);
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i2c_smbus_write_byte_data(client, SMSC47M192_REG_IN_MIN(nr),
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data->in_min[nr]);
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up(&data->update_lock);
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return count;
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}
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static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
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int nr = sensor_attr->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct smsc47m192_data *data = i2c_get_clientdata(client);
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unsigned long val = simple_strtoul(buf, NULL, 10);
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down(&data->update_lock);
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data->in_max[nr] = IN_TO_REG(val, nr);
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i2c_smbus_write_byte_data(client, SMSC47M192_REG_IN_MAX(nr),
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data->in_max[nr]);
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up(&data->update_lock);
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return count;
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}
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#define show_in_offset(offset) \
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static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
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show_in, NULL, offset); \
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static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
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show_in_min, set_in_min, offset); \
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static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
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show_in_max, set_in_max, offset);
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show_in_offset(0)
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show_in_offset(1)
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show_in_offset(2)
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show_in_offset(3)
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show_in_offset(4)
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show_in_offset(5)
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show_in_offset(6)
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show_in_offset(7)
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/* Temperatures */
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static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
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int nr = sensor_attr->index;
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struct smsc47m192_data *data = smsc47m192_update_device(dev);
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return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
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}
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static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
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int nr = sensor_attr->index;
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struct smsc47m192_data *data = smsc47m192_update_device(dev);
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return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
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}
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static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
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int nr = sensor_attr->index;
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struct smsc47m192_data *data = smsc47m192_update_device(dev);
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return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
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}
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static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
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int nr = sensor_attr->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct smsc47m192_data *data = i2c_get_clientdata(client);
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long val = simple_strtol(buf, NULL, 10);
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down(&data->update_lock);
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data->temp_min[nr] = TEMP_TO_REG(val);
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i2c_smbus_write_byte_data(client, SMSC47M192_REG_TEMP_MIN[nr],
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data->temp_min[nr]);
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up(&data->update_lock);
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return count;
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}
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static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
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int nr = sensor_attr->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct smsc47m192_data *data = i2c_get_clientdata(client);
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long val = simple_strtol(buf, NULL, 10);
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down(&data->update_lock);
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data->temp_max[nr] = TEMP_TO_REG(val);
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i2c_smbus_write_byte_data(client, SMSC47M192_REG_TEMP_MAX[nr],
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data->temp_max[nr]);
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up(&data->update_lock);
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return count;
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}
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static ssize_t show_temp_offset(struct device *dev, struct device_attribute
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*attr, char *buf)
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{
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struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
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int nr = sensor_attr->index;
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struct smsc47m192_data *data = smsc47m192_update_device(dev);
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return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr]));
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}
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static ssize_t set_temp_offset(struct device *dev, struct device_attribute
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*attr, const char *buf, size_t count)
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{
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struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
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int nr = sensor_attr->index;
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struct i2c_client *client = to_i2c_client(dev);
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struct smsc47m192_data *data = i2c_get_clientdata(client);
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u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR);
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long val = simple_strtol(buf, NULL, 10);
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down(&data->update_lock);
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data->temp_offset[nr] = TEMP_TO_REG(val);
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if (nr>1)
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i2c_smbus_write_byte_data(client,
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SMSC47M192_REG_TEMP_OFFSET(nr), data->temp_offset[nr]);
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else if (data->temp_offset[nr] != 0) {
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/* offset[0] and offset[1] share the same register,
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SFR bit 4 activates offset[0] */
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i2c_smbus_write_byte_data(client, SMSC47M192_REG_SFR,
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(sfr & 0xef) | (nr==0 ? 0x10 : 0));
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data->temp_offset[1-nr] = 0;
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i2c_smbus_write_byte_data(client,
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SMSC47M192_REG_TEMP_OFFSET(nr), data->temp_offset[nr]);
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} else if ((sfr & 0x10) == (nr==0 ? 0x10 : 0))
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i2c_smbus_write_byte_data(client,
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SMSC47M192_REG_TEMP_OFFSET(nr), 0);
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up(&data->update_lock);
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return count;
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}
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#define show_temp_index(index) \
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static SENSOR_DEVICE_ATTR(temp##index##_input, S_IRUGO, \
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show_temp, NULL, index-1); \
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static SENSOR_DEVICE_ATTR(temp##index##_min, S_IRUGO | S_IWUSR, \
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show_temp_min, set_temp_min, index-1); \
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static SENSOR_DEVICE_ATTR(temp##index##_max, S_IRUGO | S_IWUSR, \
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show_temp_max, set_temp_max, index-1); \
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static SENSOR_DEVICE_ATTR(temp##index##_offset, S_IRUGO | S_IWUSR, \
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show_temp_offset, set_temp_offset, index-1);
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show_temp_index(1)
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show_temp_index(2)
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show_temp_index(3)
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/* VID */
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static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct smsc47m192_data *data = smsc47m192_update_device(dev);
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return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
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}
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static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
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static ssize_t show_vrm(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct smsc47m192_data *data = smsc47m192_update_device(dev);
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return sprintf(buf, "%d\n", data->vrm);
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}
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static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
|
||||
struct i2c_client *client = to_i2c_client(dev);
|
||||
struct smsc47m192_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);
|
||||
|
||||
/* Alarms */
|
||||
static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
|
||||
int nr = sensor_attr->index;
|
||||
struct smsc47m192_data *data = smsc47m192_update_device(dev);
|
||||
return sprintf(buf, "%u\n", (data->alarms & nr) ? 1 : 0);
|
||||
}
|
||||
|
||||
static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 0x0010);
|
||||
static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 0x0020);
|
||||
static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 0x0040);
|
||||
static SENSOR_DEVICE_ATTR(temp2_input_fault, S_IRUGO, show_alarm, NULL, 0x4000);
|
||||
static SENSOR_DEVICE_ATTR(temp3_input_fault, S_IRUGO, show_alarm, NULL, 0x8000);
|
||||
static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0x0001);
|
||||
static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 0x0002);
|
||||
static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 0x0004);
|
||||
static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 0x0008);
|
||||
static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 0x0100);
|
||||
static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 0x0200);
|
||||
static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 0x0400);
|
||||
static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 0x0800);
|
||||
|
||||
/* This function is called when:
|
||||
* smsc47m192_driver is inserted (when this module is loaded), for each
|
||||
available adapter
|
||||
* when a new adapter is inserted (and smsc47m192_driver is still present) */
|
||||
static int smsc47m192_attach_adapter(struct i2c_adapter *adapter)
|
||||
{
|
||||
if (!(adapter->class & I2C_CLASS_HWMON))
|
||||
return 0;
|
||||
return i2c_probe(adapter, &addr_data, smsc47m192_detect);
|
||||
}
|
||||
|
||||
static void smsc47m192_init_client(struct i2c_client *client)
|
||||
{
|
||||
int i;
|
||||
u8 config = i2c_smbus_read_byte_data(client, SMSC47M192_REG_CONFIG);
|
||||
u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR);
|
||||
|
||||
/* select cycle mode (pause 1 sec between updates) */
|
||||
i2c_smbus_write_byte_data(client, SMSC47M192_REG_SFR,
|
||||
(sfr & 0xfd) | 0x02);
|
||||
if (!(config & 0x01)) {
|
||||
/* initialize alarm limits */
|
||||
for (i=0; i<8; i++) {
|
||||
i2c_smbus_write_byte_data(client,
|
||||
SMSC47M192_REG_IN_MIN(i), 0);
|
||||
i2c_smbus_write_byte_data(client,
|
||||
SMSC47M192_REG_IN_MAX(i), 0xff);
|
||||
}
|
||||
for (i=0; i<3; i++) {
|
||||
i2c_smbus_write_byte_data(client,
|
||||
SMSC47M192_REG_TEMP_MIN[i], 0x80);
|
||||
i2c_smbus_write_byte_data(client,
|
||||
SMSC47M192_REG_TEMP_MAX[i], 0x7f);
|
||||
}
|
||||
|
||||
/* start monitoring */
|
||||
i2c_smbus_write_byte_data(client, SMSC47M192_REG_CONFIG,
|
||||
(config & 0xf7) | 0x01);
|
||||
}
|
||||
}
|
||||
|
||||
/* This function is called by i2c_probe */
|
||||
static int smsc47m192_detect(struct i2c_adapter *adapter, int address,
|
||||
int kind)
|
||||
{
|
||||
struct i2c_client *client;
|
||||
struct smsc47m192_data *data;
|
||||
int err = 0;
|
||||
int version, config;
|
||||
|
||||
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
|
||||
goto exit;
|
||||
|
||||
if (!(data = kzalloc(sizeof(struct smsc47m192_data), GFP_KERNEL))) {
|
||||
err = -ENOMEM;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
client = &data->client;
|
||||
i2c_set_clientdata(client, data);
|
||||
client->addr = address;
|
||||
client->adapter = adapter;
|
||||
client->driver = &smsc47m192_driver;
|
||||
|
||||
if (kind == 0)
|
||||
kind = smsc47m192;
|
||||
|
||||
/* Detection criteria from sensors_detect script */
|
||||
if (kind < 0) {
|
||||
if (i2c_smbus_read_byte_data(client,
|
||||
SMSC47M192_REG_COMPANY_ID) == 0x55
|
||||
&& ((version = i2c_smbus_read_byte_data(client,
|
||||
SMSC47M192_REG_VERSION)) & 0xf0) == 0x20
|
||||
&& (i2c_smbus_read_byte_data(client,
|
||||
SMSC47M192_REG_VID) & 0x70) == 0x00
|
||||
&& (i2c_smbus_read_byte_data(client,
|
||||
SMSC47M192_REG_VID4) & 0xfe) == 0x80) {
|
||||
dev_info(&adapter->dev,
|
||||
"found SMSC47M192 or SMSC47M997, "
|
||||
"version 2, stepping A%d\n", version & 0x0f);
|
||||
} else {
|
||||
dev_dbg(&adapter->dev,
|
||||
"SMSC47M192 detection failed at 0x%02x\n",
|
||||
address);
|
||||
goto exit_free;
|
||||
}
|
||||
}
|
||||
|
||||
/* Fill in the remaining client fields and put into the global list */
|
||||
strlcpy(client->name, "smsc47m192", I2C_NAME_SIZE);
|
||||
data->vrm = vid_which_vrm();
|
||||
init_MUTEX(&data->update_lock);
|
||||
|
||||
/* Tell the I2C layer a new client has arrived */
|
||||
if ((err = i2c_attach_client(client)))
|
||||
goto exit_free;
|
||||
|
||||
/* Initialize the SMSC47M192 chip */
|
||||
smsc47m192_init_client(client);
|
||||
|
||||
/* Register sysfs hooks */
|
||||
data->class_dev = hwmon_device_register(&client->dev);
|
||||
if (IS_ERR(data->class_dev)) {
|
||||
err = PTR_ERR(data->class_dev);
|
||||
goto exit_detach;
|
||||
}
|
||||
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in0_input.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in0_min.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in0_max.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in0_alarm.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in1_input.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in1_min.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in1_max.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in1_alarm.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in2_input.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in2_min.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in2_max.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in2_alarm.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in3_input.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in3_min.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in3_max.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in3_alarm.dev_attr);
|
||||
|
||||
/* Pin 110 is either in4 (+12V) or VID4 */
|
||||
config = i2c_smbus_read_byte_data(client, SMSC47M192_REG_CONFIG);
|
||||
if (!(config & 0x20)) {
|
||||
device_create_file(&client->dev,
|
||||
&sensor_dev_attr_in4_input.dev_attr);
|
||||
device_create_file(&client->dev,
|
||||
&sensor_dev_attr_in4_min.dev_attr);
|
||||
device_create_file(&client->dev,
|
||||
&sensor_dev_attr_in4_max.dev_attr);
|
||||
device_create_file(&client->dev,
|
||||
&sensor_dev_attr_in4_alarm.dev_attr);
|
||||
}
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in5_input.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in5_min.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in5_max.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in5_alarm.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in6_input.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in6_min.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in6_max.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in6_alarm.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in7_input.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in7_min.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in7_max.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_in7_alarm.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_temp1_input.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_temp1_max.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_temp1_min.dev_attr);
|
||||
device_create_file(&client->dev,
|
||||
&sensor_dev_attr_temp1_offset.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_temp1_alarm.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_temp2_input.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_temp2_max.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_temp2_min.dev_attr);
|
||||
device_create_file(&client->dev,
|
||||
&sensor_dev_attr_temp2_offset.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_temp2_alarm.dev_attr);
|
||||
device_create_file(&client->dev,
|
||||
&sensor_dev_attr_temp2_input_fault.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_temp3_input.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_temp3_max.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_temp3_min.dev_attr);
|
||||
device_create_file(&client->dev,
|
||||
&sensor_dev_attr_temp3_offset.dev_attr);
|
||||
device_create_file(&client->dev, &sensor_dev_attr_temp3_alarm.dev_attr);
|
||||
device_create_file(&client->dev,
|
||||
&sensor_dev_attr_temp3_input_fault.dev_attr);
|
||||
device_create_file(&client->dev, &dev_attr_cpu0_vid);
|
||||
device_create_file(&client->dev, &dev_attr_vrm);
|
||||
|
||||
return 0;
|
||||
|
||||
exit_detach:
|
||||
i2c_detach_client(client);
|
||||
exit_free:
|
||||
kfree(data);
|
||||
exit:
|
||||
return err;
|
||||
}
|
||||
|
||||
static int smsc47m192_detach_client(struct i2c_client *client)
|
||||
{
|
||||
struct smsc47m192_data *data = i2c_get_clientdata(client);
|
||||
int err;
|
||||
|
||||
hwmon_device_unregister(data->class_dev);
|
||||
|
||||
if ((err = i2c_detach_client(client)))
|
||||
return err;
|
||||
|
||||
kfree(data);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct smsc47m192_data *smsc47m192_update_device(struct device *dev)
|
||||
{
|
||||
struct i2c_client *client = to_i2c_client(dev);
|
||||
struct smsc47m192_data *data = i2c_get_clientdata(client);
|
||||
int i, config;
|
||||
|
||||
down(&data->update_lock);
|
||||
|
||||
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|
||||
|| !data->valid) {
|
||||
u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR);
|
||||
|
||||
dev_dbg(&client->dev, "Starting smsc47m192 update\n");
|
||||
|
||||
for (i = 0; i <= 7; i++) {
|
||||
data->in[i] = i2c_smbus_read_byte_data(client,
|
||||
SMSC47M192_REG_IN(i));
|
||||
data->in_min[i] = i2c_smbus_read_byte_data(client,
|
||||
SMSC47M192_REG_IN_MIN(i));
|
||||
data->in_max[i] = i2c_smbus_read_byte_data(client,
|
||||
SMSC47M192_REG_IN_MAX(i));
|
||||
}
|
||||
for (i = 0; i < 3; i++) {
|
||||
data->temp[i] = i2c_smbus_read_byte_data(client,
|
||||
SMSC47M192_REG_TEMP[i]);
|
||||
data->temp_max[i] = i2c_smbus_read_byte_data(client,
|
||||
SMSC47M192_REG_TEMP_MAX[i]);
|
||||
data->temp_min[i] = i2c_smbus_read_byte_data(client,
|
||||
SMSC47M192_REG_TEMP_MIN[i]);
|
||||
}
|
||||
for (i = 1; i < 3; i++)
|
||||
data->temp_offset[i] = i2c_smbus_read_byte_data(client,
|
||||
SMSC47M192_REG_TEMP_OFFSET(i));
|
||||
/* first offset is temp_offset[0] if SFR bit 4 is set,
|
||||
temp_offset[1] otherwise */
|
||||
if (sfr & 0x10) {
|
||||
data->temp_offset[0] = data->temp_offset[1];
|
||||
data->temp_offset[1] = 0;
|
||||
} else
|
||||
data->temp_offset[0] = 0;
|
||||
|
||||
data->vid = i2c_smbus_read_byte_data(client, SMSC47M192_REG_VID)
|
||||
& 0x0f;
|
||||
config = i2c_smbus_read_byte_data(client,
|
||||
SMSC47M192_REG_CONFIG);
|
||||
if (config & 0x20)
|
||||
data->vid |= (i2c_smbus_read_byte_data(client,
|
||||
SMSC47M192_REG_VID4) & 0x01) << 4;
|
||||
data->alarms = i2c_smbus_read_byte_data(client,
|
||||
SMSC47M192_REG_ALARM1) |
|
||||
(i2c_smbus_read_byte_data(client,
|
||||
SMSC47M192_REG_ALARM2) << 8);
|
||||
|
||||
data->last_updated = jiffies;
|
||||
data->valid = 1;
|
||||
}
|
||||
|
||||
up(&data->update_lock);
|
||||
|
||||
return data;
|
||||
}
|
||||
|
||||
static int __init smsc47m192_init(void)
|
||||
{
|
||||
return i2c_add_driver(&smsc47m192_driver);
|
||||
}
|
||||
|
||||
static void __exit smsc47m192_exit(void)
|
||||
{
|
||||
i2c_del_driver(&smsc47m192_driver);
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Hartmut Rick <[email protected]>");
|
||||
MODULE_DESCRIPTION("SMSC47M192 driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
module_init(smsc47m192_init);
|
||||
module_exit(smsc47m192_exit);
|
||||
Loading…
Reference in a new issue