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drivers/hwmon/smsc47m192.c
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// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* smsc47m192.c - Support for hardware monitoring block of * SMSC LPC47M192 and compatible Super I/O chips * * Copyright (C) 2006 Hartmut Rick <linux@rick.claranet.de> * * Derived from lm78.c and other chip drivers. |
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*/ |
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#include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/jiffies.h> #include <linux/i2c.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/hwmon-vid.h> #include <linux/err.h> |
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#include <linux/sysfs.h> |
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#include <linux/mutex.h> |
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/* Addresses to scan */ |
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static const unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END }; |
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|
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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))) static u8 SMSC47M192_REG_TEMP[3] = { 0x27, 0x26, 0x52 }; static u8 SMSC47M192_REG_TEMP_MAX[3] = { 0x39, 0x37, 0x58 }; 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 #define SMSC47M192_REG_ALARM2 0x42 #define SMSC47M192_REG_VID 0x47 #define SMSC47M192_REG_VID4 0x49 #define SMSC47M192_REG_CONFIG 0x40 #define SMSC47M192_REG_SFR 0x4f #define SMSC47M192_REG_COMPANY_ID 0x3e #define SMSC47M192_REG_VERSION 0x3f /* generalised scaling with integer rounding */ static inline int SCALE(long val, int mul, int div) { if (val < 0) return (val * mul - div / 2) / div; else return (val * mul + div / 2) / div; } /* Conversions */ /* smsc47m192 internally scales voltage measurements */ static const u16 nom_mv[] = { 2500, 2250, 3300, 5000, 12000, 3300, 1500, 1800 }; static inline unsigned int IN_FROM_REG(u8 reg, int n) { return SCALE(reg, nom_mv[n], 192); } static inline u8 IN_TO_REG(unsigned long val, int n) { |
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val = clamp_val(val, 0, nom_mv[n] * 255 / 192); return SCALE(val, 192, nom_mv[n]); |
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} |
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/* * TEMP: 0.001 degC units (-128C to +127C) * REG: 1C/bit, two's complement */ |
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static inline s8 TEMP_TO_REG(long val) |
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{ |
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return SCALE(clamp_val(val, -128000, 127000), 1, 1000); |
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} static inline int TEMP_FROM_REG(s8 val) { return val * 1000; } struct smsc47m192_data { |
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struct i2c_client *client; const struct attribute_group *groups[3]; |
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struct mutex update_lock; |
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char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ u8 in[8]; /* Register value */ u8 in_max[8]; /* Register value */ u8 in_min[8]; /* Register value */ s8 temp[3]; /* Register value */ s8 temp_max[3]; /* Register value */ s8 temp_min[3]; /* Register value */ s8 temp_offset[3]; /* Register value */ u16 alarms; /* Register encoding, combined */ u8 vid; /* Register encoding, combined */ u8 vrm; }; |
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static struct smsc47m192_data *smsc47m192_update_device(struct device *dev) { |
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struct smsc47m192_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; |
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int i, config; |
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|
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mutex_lock(&data->update_lock); |
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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 "); 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; } mutex_unlock(&data->update_lock); return data; } |
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/* Voltages */ |
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static ssize_t in_show(struct device *dev, struct device_attribute *attr, char *buf) |
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{ 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, "%d ", IN_FROM_REG(data->in[nr], nr)); } |
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static ssize_t in_min_show(struct device *dev, struct device_attribute *attr, char *buf) |
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{ 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, "%d ", IN_FROM_REG(data->in_min[nr], nr)); } |
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static ssize_t in_max_show(struct device *dev, struct device_attribute *attr, char *buf) |
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{ 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, "%d ", IN_FROM_REG(data->in_max[nr], nr)); } |
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static ssize_t in_min_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; |
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struct smsc47m192_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; |
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unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; |
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mutex_lock(&data->update_lock); |
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data->in_min[nr] = IN_TO_REG(val, nr); i2c_smbus_write_byte_data(client, SMSC47M192_REG_IN_MIN(nr), data->in_min[nr]); |
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mutex_unlock(&data->update_lock); |
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return count; } |
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static ssize_t in_max_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; |
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struct smsc47m192_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; |
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unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; |
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mutex_lock(&data->update_lock); |
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data->in_max[nr] = IN_TO_REG(val, nr); i2c_smbus_write_byte_data(client, SMSC47M192_REG_IN_MAX(nr), data->in_max[nr]); |
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mutex_unlock(&data->update_lock); |
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return count; } |
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static SENSOR_DEVICE_ATTR_RO(in0_input, in, 0); static SENSOR_DEVICE_ATTR_RW(in0_min, in_min, 0); static SENSOR_DEVICE_ATTR_RW(in0_max, in_max, 0); static SENSOR_DEVICE_ATTR_RO(in1_input, in, 1); static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 1); static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 1); static SENSOR_DEVICE_ATTR_RO(in2_input, in, 2); static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 2); static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 2); static SENSOR_DEVICE_ATTR_RO(in3_input, in, 3); static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 3); static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 3); static SENSOR_DEVICE_ATTR_RO(in4_input, in, 4); static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 4); static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 4); static SENSOR_DEVICE_ATTR_RO(in5_input, in, 5); static SENSOR_DEVICE_ATTR_RW(in5_min, in_min, 5); static SENSOR_DEVICE_ATTR_RW(in5_max, in_max, 5); static SENSOR_DEVICE_ATTR_RO(in6_input, in, 6); static SENSOR_DEVICE_ATTR_RW(in6_min, in_min, 6); static SENSOR_DEVICE_ATTR_RW(in6_max, in_max, 6); static SENSOR_DEVICE_ATTR_RO(in7_input, in, 7); static SENSOR_DEVICE_ATTR_RW(in7_min, in_min, 7); static SENSOR_DEVICE_ATTR_RW(in7_max, in_max, 7); |
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/* Temperatures */ |
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static ssize_t temp_show(struct device *dev, struct device_attribute *attr, char *buf) |
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{ 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, "%d ", TEMP_FROM_REG(data->temp[nr])); } |
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static ssize_t temp_min_show(struct device *dev, struct device_attribute *attr, char *buf) |
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{ 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, "%d ", TEMP_FROM_REG(data->temp_min[nr])); } |
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static ssize_t temp_max_show(struct device *dev, struct device_attribute *attr, char *buf) |
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{ 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, "%d ", TEMP_FROM_REG(data->temp_max[nr])); } |
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static ssize_t temp_min_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; |
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struct smsc47m192_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; |
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long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; |
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mutex_lock(&data->update_lock); |
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data->temp_min[nr] = TEMP_TO_REG(val); i2c_smbus_write_byte_data(client, SMSC47M192_REG_TEMP_MIN[nr], data->temp_min[nr]); |
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mutex_unlock(&data->update_lock); |
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return count; } |
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static ssize_t temp_max_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; |
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struct smsc47m192_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; |
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long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; |
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mutex_lock(&data->update_lock); |
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data->temp_max[nr] = TEMP_TO_REG(val); i2c_smbus_write_byte_data(client, SMSC47M192_REG_TEMP_MAX[nr], data->temp_max[nr]); |
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mutex_unlock(&data->update_lock); |
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return count; } |
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static ssize_t temp_offset_show(struct device *dev, struct device_attribute *attr, char *buf) |
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{ 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, "%d ", TEMP_FROM_REG(data->temp_offset[nr])); } |
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static ssize_t temp_offset_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; |
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struct smsc47m192_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; |
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u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR); |
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long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; |
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mutex_lock(&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, SMSC47M192_REG_TEMP_OFFSET(nr), data->temp_offset[nr]); else if (data->temp_offset[nr] != 0) { |
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/* * offset[0] and offset[1] share the same register, * 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; i2c_smbus_write_byte_data(client, 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, SMSC47M192_REG_TEMP_OFFSET(nr), 0); |
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mutex_unlock(&data->update_lock); |
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return count; } |
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static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0); static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0); static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0); static SENSOR_DEVICE_ATTR_RW(temp1_offset, temp_offset, 0); static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1); static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1); static SENSOR_DEVICE_ATTR_RW(temp2_offset, temp_offset, 1); static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2); static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_min, 2); static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2); static SENSOR_DEVICE_ATTR_RW(temp3_offset, temp_offset, 2); |
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/* VID */ |
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static ssize_t cpu0_vid_show(struct device *dev, struct device_attribute *attr, char *buf) |
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{ struct smsc47m192_data *data = smsc47m192_update_device(dev); return sprintf(buf, "%d ", vid_from_reg(data->vid, data->vrm)); } |
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static DEVICE_ATTR_RO(cpu0_vid); |
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static ssize_t vrm_show(struct device *dev, struct device_attribute *attr, |
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char *buf) { |
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struct smsc47m192_data *data = dev_get_drvdata(dev); |
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return sprintf(buf, "%d ", data->vrm); } |
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static ssize_t vrm_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ |
8f74efe81 hwmon: VRM is not... |
413 |
struct smsc47m192_data *data = dev_get_drvdata(dev); |
7cc3cb666 hwmon: (smsc47m19... |
414 415 416 417 418 419 |
unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; |
043572d54 hwmon: (smsc47m19... |
420 421 |
if (val > 255) return -EINVAL; |
7cc3cb666 hwmon: (smsc47m19... |
422 423 |
data->vrm = val; |
59ac83677 [PATCH] smsc47m19... |
424 425 |
return count; } |
2d1c4cf10 hwmon: (smsc47m19... |
426 |
static DEVICE_ATTR_RW(vrm); |
59ac83677 [PATCH] smsc47m19... |
427 428 |
/* Alarms */ |
f2bec7ea6 hwmon: (smsc47m19... |
429 430 |
static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, char *buf) |
59ac83677 [PATCH] smsc47m19... |
431 432 433 434 435 436 437 |
{ 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 ", (data->alarms & nr) ? 1 : 0); } |
f2bec7ea6 hwmon: (smsc47m19... |
438 439 440 441 442 443 444 445 446 447 448 449 450 |
static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, 0x0010); static SENSOR_DEVICE_ATTR_RO(temp2_alarm, alarm, 0x0020); static SENSOR_DEVICE_ATTR_RO(temp3_alarm, alarm, 0x0040); static SENSOR_DEVICE_ATTR_RO(temp2_fault, alarm, 0x4000); static SENSOR_DEVICE_ATTR_RO(temp3_fault, alarm, 0x8000); static SENSOR_DEVICE_ATTR_RO(in0_alarm, alarm, 0x0001); static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, 0x0002); static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, 0x0004); static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, 0x0008); static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, 0x0100); static SENSOR_DEVICE_ATTR_RO(in5_alarm, alarm, 0x0200); static SENSOR_DEVICE_ATTR_RO(in6_alarm, alarm, 0x0400); static SENSOR_DEVICE_ATTR_RO(in7_alarm, alarm, 0x0800); |
59ac83677 [PATCH] smsc47m19... |
451 |
|
ce8c6ce1e hwmon: Fix unchec... |
452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 |
static struct attribute *smsc47m192_attributes[] = { &sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in0_min.dev_attr.attr, &sensor_dev_attr_in0_max.dev_attr.attr, &sensor_dev_attr_in0_alarm.dev_attr.attr, &sensor_dev_attr_in1_input.dev_attr.attr, &sensor_dev_attr_in1_min.dev_attr.attr, &sensor_dev_attr_in1_max.dev_attr.attr, &sensor_dev_attr_in1_alarm.dev_attr.attr, &sensor_dev_attr_in2_input.dev_attr.attr, &sensor_dev_attr_in2_min.dev_attr.attr, &sensor_dev_attr_in2_max.dev_attr.attr, &sensor_dev_attr_in2_alarm.dev_attr.attr, &sensor_dev_attr_in3_input.dev_attr.attr, &sensor_dev_attr_in3_min.dev_attr.attr, &sensor_dev_attr_in3_max.dev_attr.attr, &sensor_dev_attr_in3_alarm.dev_attr.attr, &sensor_dev_attr_in5_input.dev_attr.attr, &sensor_dev_attr_in5_min.dev_attr.attr, &sensor_dev_attr_in5_max.dev_attr.attr, &sensor_dev_attr_in5_alarm.dev_attr.attr, &sensor_dev_attr_in6_input.dev_attr.attr, &sensor_dev_attr_in6_min.dev_attr.attr, &sensor_dev_attr_in6_max.dev_attr.attr, &sensor_dev_attr_in6_alarm.dev_attr.attr, &sensor_dev_attr_in7_input.dev_attr.attr, &sensor_dev_attr_in7_min.dev_attr.attr, &sensor_dev_attr_in7_max.dev_attr.attr, &sensor_dev_attr_in7_alarm.dev_attr.attr, &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_temp1_max.dev_attr.attr, &sensor_dev_attr_temp1_min.dev_attr.attr, &sensor_dev_attr_temp1_offset.dev_attr.attr, &sensor_dev_attr_temp1_alarm.dev_attr.attr, &sensor_dev_attr_temp2_input.dev_attr.attr, &sensor_dev_attr_temp2_max.dev_attr.attr, &sensor_dev_attr_temp2_min.dev_attr.attr, &sensor_dev_attr_temp2_offset.dev_attr.attr, &sensor_dev_attr_temp2_alarm.dev_attr.attr, |
7817a39e6 hwmon: Fault file... |
492 |
&sensor_dev_attr_temp2_fault.dev_attr.attr, |
ce8c6ce1e hwmon: Fix unchec... |
493 494 495 496 497 |
&sensor_dev_attr_temp3_input.dev_attr.attr, &sensor_dev_attr_temp3_max.dev_attr.attr, &sensor_dev_attr_temp3_min.dev_attr.attr, &sensor_dev_attr_temp3_offset.dev_attr.attr, &sensor_dev_attr_temp3_alarm.dev_attr.attr, |
7817a39e6 hwmon: Fault file... |
498 |
&sensor_dev_attr_temp3_fault.dev_attr.attr, |
ce8c6ce1e hwmon: Fix unchec... |
499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 |
&dev_attr_cpu0_vid.attr, &dev_attr_vrm.attr, NULL }; static const struct attribute_group smsc47m192_group = { .attrs = smsc47m192_attributes, }; static struct attribute *smsc47m192_attributes_in4[] = { &sensor_dev_attr_in4_input.dev_attr.attr, &sensor_dev_attr_in4_min.dev_attr.attr, &sensor_dev_attr_in4_max.dev_attr.attr, &sensor_dev_attr_in4_alarm.dev_attr.attr, NULL }; static const struct attribute_group smsc47m192_group_in4 = { .attrs = smsc47m192_attributes_in4, }; |
59ac83677 [PATCH] smsc47m19... |
520 521 522 523 524 525 526 527 528 529 530 |
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 */ |
7cc3cb666 hwmon: (smsc47m19... |
531 |
for (i = 0; i < 8; i++) { |
59ac83677 [PATCH] smsc47m19... |
532 533 534 535 536 |
i2c_smbus_write_byte_data(client, SMSC47M192_REG_IN_MIN(i), 0); i2c_smbus_write_byte_data(client, SMSC47M192_REG_IN_MAX(i), 0xff); } |
7cc3cb666 hwmon: (smsc47m19... |
537 |
for (i = 0; i < 3; i++) { |
59ac83677 [PATCH] smsc47m19... |
538 539 540 541 542 543 544 545 546 547 548 |
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); } } |
8fb597bb6 hwmon: (smsc47m19... |
549 |
/* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec7921 i2c: Drop the kin... |
550 |
static int smsc47m192_detect(struct i2c_client *client, |
8fb597bb6 hwmon: (smsc47m19... |
551 |
struct i2c_board_info *info) |
59ac83677 [PATCH] smsc47m19... |
552 |
{ |
8fb597bb6 hwmon: (smsc47m19... |
553 554 |
struct i2c_adapter *adapter = client->adapter; int version; |
59ac83677 [PATCH] smsc47m19... |
555 556 |
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
8fb597bb6 hwmon: (smsc47m19... |
557 |
return -ENODEV; |
59ac83677 [PATCH] smsc47m19... |
558 559 |
/* Detection criteria from sensors_detect script */ |
52df6440a hwmon: Clean up d... |
560 561 |
version = i2c_smbus_read_byte_data(client, SMSC47M192_REG_VERSION); if (i2c_smbus_read_byte_data(client, |
59ac83677 [PATCH] smsc47m19... |
562 |
SMSC47M192_REG_COMPANY_ID) == 0x55 |
52df6440a hwmon: Clean up d... |
563 564 |
&& (version & 0xf0) == 0x20 && (i2c_smbus_read_byte_data(client, |
59ac83677 [PATCH] smsc47m19... |
565 |
SMSC47M192_REG_VID) & 0x70) == 0x00 |
52df6440a hwmon: Clean up d... |
566 |
&& (i2c_smbus_read_byte_data(client, |
59ac83677 [PATCH] smsc47m19... |
567 |
SMSC47M192_REG_VID4) & 0xfe) == 0x80) { |
52df6440a hwmon: Clean up d... |
568 569 570 571 572 573 574 575 576 577 |
dev_info(&adapter->dev, "found SMSC47M192 or compatible, " "version 2, stepping A%d ", version & 0x0f); } else { dev_dbg(&adapter->dev, "SMSC47M192 detection failed at 0x%02x ", client->addr); return -ENODEV; |
59ac83677 [PATCH] smsc47m19... |
578 |
} |
8fb597bb6 hwmon: (smsc47m19... |
579 580 581 582 583 584 585 586 |
strlcpy(info->type, "smsc47m192", I2C_NAME_SIZE); return 0; } static int smsc47m192_probe(struct i2c_client *client, const struct i2c_device_id *id) { |
166f72966 hwmon: (smsc47m19... |
587 588 |
struct device *dev = &client->dev; struct device *hwmon_dev; |
8fb597bb6 hwmon: (smsc47m19... |
589 590 |
struct smsc47m192_data *data; int config; |
8fb597bb6 hwmon: (smsc47m19... |
591 |
|
166f72966 hwmon: (smsc47m19... |
592 |
data = devm_kzalloc(dev, sizeof(struct smsc47m192_data), GFP_KERNEL); |
2625996b7 hwmon: (smsc47m19... |
593 594 |
if (!data) return -ENOMEM; |
8fb597bb6 hwmon: (smsc47m19... |
595 |
|
166f72966 hwmon: (smsc47m19... |
596 |
data->client = client; |
59ac83677 [PATCH] smsc47m19... |
597 |
data->vrm = vid_which_vrm(); |
e4a7167f8 hwmon/smsc47m192:... |
598 |
mutex_init(&data->update_lock); |
59ac83677 [PATCH] smsc47m19... |
599 |
|
59ac83677 [PATCH] smsc47m19... |
600 601 |
/* Initialize the SMSC47M192 chip */ smsc47m192_init_client(client); |
166f72966 hwmon: (smsc47m19... |
602 603 |
/* sysfs hooks */ data->groups[0] = &smsc47m192_group; |
59ac83677 [PATCH] smsc47m19... |
604 605 |
/* Pin 110 is either in4 (+12V) or VID4 */ config = i2c_smbus_read_byte_data(client, SMSC47M192_REG_CONFIG); |
166f72966 hwmon: (smsc47m19... |
606 607 |
if (!(config & 0x20)) data->groups[1] = &smsc47m192_group_in4; |
59ac83677 [PATCH] smsc47m19... |
608 |
|
166f72966 hwmon: (smsc47m19... |
609 610 611 |
hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, data, data->groups); return PTR_ERR_OR_ZERO(hwmon_dev); |
59ac83677 [PATCH] smsc47m19... |
612 |
} |
94314e259 hwmon: (smsc47m19... |
613 614 615 616 617 |
static const struct i2c_device_id smsc47m192_id[] = { { "smsc47m192", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, smsc47m192_id); |
59ac83677 [PATCH] smsc47m19... |
618 |
|
94314e259 hwmon: (smsc47m19... |
619 620 621 622 623 624 |
static struct i2c_driver smsc47m192_driver = { .class = I2C_CLASS_HWMON, .driver = { .name = "smsc47m192", }, .probe = smsc47m192_probe, |
94314e259 hwmon: (smsc47m19... |
625 626 627 628 |
.id_table = smsc47m192_id, .detect = smsc47m192_detect, .address_list = normal_i2c, }; |
59ac83677 [PATCH] smsc47m19... |
629 |
|
f0967eea8 hwmon: convert dr... |
630 |
module_i2c_driver(smsc47m192_driver); |
59ac83677 [PATCH] smsc47m19... |
631 632 633 634 |
MODULE_AUTHOR("Hartmut Rick <linux@rick.claranet.de>"); MODULE_DESCRIPTION("SMSC47M192 driver"); MODULE_LICENSE("GPL"); |