diff options
author | Jean Delvare <khali@linux-fr.org> | 2005-06-05 21:16:39 +0200 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-06-21 21:52:04 -0700 |
commit | 1a86c05121a3f56b4b928ed43f9f8ffc1376d802 (patch) | |
tree | 5ae73589d53ccadec32b90305988828f530efc04 | |
parent | 30d7394b1a3df0e7cc145a543846109babd4d53b (diff) |
[PATCH] I2C: lm83 uses new sysfs callbacks
I updated the lm83 hardware monitoring driver to take benefit of Yani
Ioannou's new sysfs callback capabilities.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r-- | drivers/i2c/chips/lm83.c | 157 |
1 files changed, 77 insertions, 80 deletions
diff --git a/drivers/i2c/chips/lm83.c b/drivers/i2c/chips/lm83.c index 442dc17cdb7..0e0eae4dcea 100644 --- a/drivers/i2c/chips/lm83.c +++ b/drivers/i2c/chips/lm83.c @@ -1,7 +1,7 @@ /* * lm83.c - Part of lm_sensors, Linux kernel modules for hardware * monitoring - * Copyright (C) 2003 Jean Delvare <khali@linux-fr.org> + * Copyright (C) 2003-2005 Jean Delvare <khali@linux-fr.org> * * Heavily inspired from the lm78, lm75 and adm1021 drivers. The LM83 is * a sensor chip made by National Semiconductor. It reports up to four @@ -33,6 +33,7 @@ #include <linux/jiffies.h> #include <linux/i2c.h> #include <linux/i2c-sensor.h> +#include <linux/i2c-sysfs.h> /* * Addresses to scan @@ -93,21 +94,20 @@ static const u8 LM83_REG_R_TEMP[] = { LM83_REG_R_LOCAL_TEMP, LM83_REG_R_REMOTE1_TEMP, LM83_REG_R_REMOTE2_TEMP, - LM83_REG_R_REMOTE3_TEMP -}; - -static const u8 LM83_REG_R_HIGH[] = { + LM83_REG_R_REMOTE3_TEMP, LM83_REG_R_LOCAL_HIGH, LM83_REG_R_REMOTE1_HIGH, LM83_REG_R_REMOTE2_HIGH, - LM83_REG_R_REMOTE3_HIGH + LM83_REG_R_REMOTE3_HIGH, + LM83_REG_R_TCRIT, }; static const u8 LM83_REG_W_HIGH[] = { LM83_REG_W_LOCAL_HIGH, LM83_REG_W_REMOTE1_HIGH, LM83_REG_W_REMOTE2_HIGH, - LM83_REG_W_REMOTE3_HIGH + LM83_REG_W_REMOTE3_HIGH, + LM83_REG_W_TCRIT, }; /* @@ -143,9 +143,9 @@ struct lm83_data { unsigned long last_updated; /* in jiffies */ /* registers values */ - s8 temp_input[4]; - s8 temp_high[4]; - s8 temp_crit; + s8 temp[9]; /* 0..3: input 1-4, + 4..7: high limit 1-4, + 8 : critical limit */ u16 alarms; /* bitvector, combined */ }; @@ -153,65 +153,55 @@ struct lm83_data { * Sysfs stuff */ -#define show_temp(suffix, value) \ -static ssize_t show_temp_##suffix(struct device *dev, struct device_attribute *attr, char *buf) \ -{ \ - struct lm83_data *data = lm83_update_device(dev); \ - return sprintf(buf, "%d\n", TEMP_FROM_REG(data->value)); \ +static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct lm83_data *data = lm83_update_device(dev); + return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index])); } -show_temp(input1, temp_input[0]); -show_temp(input2, temp_input[1]); -show_temp(input3, temp_input[2]); -show_temp(input4, temp_input[3]); -show_temp(high1, temp_high[0]); -show_temp(high2, temp_high[1]); -show_temp(high3, temp_high[2]); -show_temp(high4, temp_high[3]); -show_temp(crit, temp_crit); - -#define set_temp(suffix, value, reg) \ -static ssize_t set_temp_##suffix(struct device *dev, struct device_attribute *attr, const char *buf, \ - size_t count) \ -{ \ - struct i2c_client *client = to_i2c_client(dev); \ - struct lm83_data *data = i2c_get_clientdata(client); \ - long val = simple_strtol(buf, NULL, 10); \ - \ - down(&data->update_lock); \ - data->value = TEMP_TO_REG(val); \ - i2c_smbus_write_byte_data(client, reg, data->value); \ - up(&data->update_lock); \ - return count; \ + +static ssize_t set_temp(struct device *dev, struct device_attribute *devattr, + const char *buf, size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct i2c_client *client = to_i2c_client(dev); + struct lm83_data *data = i2c_get_clientdata(client); + long val = simple_strtol(buf, NULL, 10); + int nr = attr->index; + + down(&data->update_lock); + data->temp[nr] = TEMP_TO_REG(val); + i2c_smbus_write_byte_data(client, LM83_REG_W_HIGH[nr - 4], + data->temp[nr]); + up(&data->update_lock); + return count; } -set_temp(high1, temp_high[0], LM83_REG_W_LOCAL_HIGH); -set_temp(high2, temp_high[1], LM83_REG_W_REMOTE1_HIGH); -set_temp(high3, temp_high[2], LM83_REG_W_REMOTE2_HIGH); -set_temp(high4, temp_high[3], LM83_REG_W_REMOTE3_HIGH); -set_temp(crit, temp_crit, LM83_REG_W_TCRIT); -static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t show_alarms(struct device *dev, struct device_attribute *dummy, + char *buf) { struct lm83_data *data = lm83_update_device(dev); return sprintf(buf, "%d\n", data->alarms); } -static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL); -static DEVICE_ATTR(temp2_input, S_IRUGO, show_temp_input2, NULL); -static DEVICE_ATTR(temp3_input, S_IRUGO, show_temp_input3, NULL); -static DEVICE_ATTR(temp4_input, S_IRUGO, show_temp_input4, NULL); -static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_high1, - set_temp_high1); -static DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_high2, - set_temp_high2); -static DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_high3, - set_temp_high3); -static DEVICE_ATTR(temp4_max, S_IWUSR | S_IRUGO, show_temp_high4, - set_temp_high4); -static DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp_crit, NULL); -static DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp_crit, NULL); -static DEVICE_ATTR(temp3_crit, S_IWUSR | S_IRUGO, show_temp_crit, - set_temp_crit); -static DEVICE_ATTR(temp4_crit, S_IRUGO, show_temp_crit, NULL); +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); +static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); +static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); +static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3); +static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp, + set_temp, 4); +static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp, + set_temp, 5); +static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp, + set_temp, 6); +static SENSOR_DEVICE_ATTR(temp4_max, S_IWUSR | S_IRUGO, show_temp, + set_temp, 7); +static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp, NULL, 8); +static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp, NULL, 8); +static SENSOR_DEVICE_ATTR(temp3_crit, S_IWUSR | S_IRUGO, show_temp, + set_temp, 8); +static SENSOR_DEVICE_ATTR(temp4_crit, S_IRUGO, show_temp, NULL, 8); static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); /* @@ -322,18 +312,30 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind) */ /* Register sysfs hooks */ - device_create_file(&new_client->dev, &dev_attr_temp1_input); - device_create_file(&new_client->dev, &dev_attr_temp2_input); - device_create_file(&new_client->dev, &dev_attr_temp3_input); - device_create_file(&new_client->dev, &dev_attr_temp4_input); - device_create_file(&new_client->dev, &dev_attr_temp1_max); - device_create_file(&new_client->dev, &dev_attr_temp2_max); - device_create_file(&new_client->dev, &dev_attr_temp3_max); - device_create_file(&new_client->dev, &dev_attr_temp4_max); - device_create_file(&new_client->dev, &dev_attr_temp1_crit); - device_create_file(&new_client->dev, &dev_attr_temp2_crit); - device_create_file(&new_client->dev, &dev_attr_temp3_crit); - device_create_file(&new_client->dev, &dev_attr_temp4_crit); + device_create_file(&new_client->dev, + &sensor_dev_attr_temp1_input.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_temp2_input.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_temp3_input.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_temp4_input.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_temp1_max.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_temp2_max.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_temp3_max.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_temp4_max.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_temp1_crit.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_temp2_crit.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_temp3_crit.dev_attr); + device_create_file(&new_client->dev, + &sensor_dev_attr_temp4_crit.dev_attr); device_create_file(&new_client->dev, &dev_attr_alarms); return 0; @@ -369,16 +371,11 @@ static struct lm83_data *lm83_update_device(struct device *dev) int nr; dev_dbg(&client->dev, "Updating lm83 data.\n"); - for (nr = 0; nr < 4 ; nr++) { - data->temp_input[nr] = + for (nr = 0; nr < 9; nr++) { + data->temp[nr] = i2c_smbus_read_byte_data(client, LM83_REG_R_TEMP[nr]); - data->temp_high[nr] = - i2c_smbus_read_byte_data(client, - LM83_REG_R_HIGH[nr]); } - data->temp_crit = - i2c_smbus_read_byte_data(client, LM83_REG_R_TCRIT); data->alarms = i2c_smbus_read_byte_data(client, LM83_REG_R_STATUS1) + (i2c_smbus_read_byte_data(client, LM83_REG_R_STATUS2) |