[PATCH] i2c: it87 patch.
More or less straight forward patch.
Fix a typo in the comments at the top.
Show all 9 voltage inputs.
Show all 3 fan inputs.
Allow you to select the temp sensor type from the sysfs interface,
instead of just with the temp_type module option.
(1 = diode, 2 = thermistor, 0 = disabled).
I'm still trying to figure out the registers for PWM fan controller
support.
drivers/i2c/chips/it87.c | 86 ++++++++++++++++++++++++++++++++++++++++++-----
1 files changed, 78 insertions(+), 8 deletions(-)
diff -Nru a/drivers/i2c/chips/it87.c b/drivers/i2c/chips/it87.c
--- a/drivers/i2c/chips/it87.c Tue May 6 17:24:24 2003
+++ b/drivers/i2c/chips/it87.c Tue May 6 17:24:24 2003
@@ -3,7 +3,7 @@
monitoring.
Supports: IT8705F Super I/O chip w/LPC interface
- IT8712F Super I/O chup w/LPC interface & SMbus
+ IT8712F Super I/O chip w/LPC interface & SMbus
Sis950 A clone of the IT8705F
Copyright (c) 2001 Chris Gauthron <chrisg@0-in.com>
@@ -238,6 +238,7 @@
u8 temp[3]; /* Register value */
u8 temp_high[3]; /* Register value */
u8 temp_low[3]; /* Register value */
+ u8 sensor; /* Register value */
u8 fan_div[3]; /* Register encoding, shifted right */
u8 vid; /* Register encoding, combined */
u32 alarms; /* Register encoding, combined */
@@ -252,7 +253,7 @@
static int it87_write_value(struct i2c_client *client, u8 register,
u8 value);
static void it87_update_client(struct i2c_client *client);
-static void it87_init_client(struct i2c_client *client);
+static void it87_init_client(struct i2c_client *client, struct it87_data *data);
static struct i2c_driver it87_driver = {
@@ -350,6 +351,10 @@
show_in_offset(2);
show_in_offset(3);
show_in_offset(4);
+show_in_offset(5);
+show_in_offset(6);
+show_in_offset(7);
+show_in_offset(8);
/* 3 temperatures */
static ssize_t show_temp(struct device *dev, char *buf, int nr)
@@ -430,7 +435,52 @@
show_temp_offset(2);
show_temp_offset(3);
-/* 2 Fans */
+/* more like overshoot temperature */
+static ssize_t show_sensor(struct device *dev, char *buf, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct it87_data *data = i2c_get_clientdata(client);
+ it87_update_client(client);
+ if (data->sensor & (1 << nr))
+ return sprintf(buf, "1\n");
+ if (data->sensor & (8 << nr))
+ return sprintf(buf, "2\n");
+ return sprintf(buf, "0\n");
+}
+static ssize_t set_sensor(struct device *dev, const char *buf,
+ size_t count, int nr)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct it87_data *data = i2c_get_clientdata(client);
+ int val = simple_strtol(buf, NULL, 10);
+
+ data->sensor &= ~(1 << nr);
+ data->sensor &= ~(8 << nr);
+ if (val == 1)
+ data->sensor |= 1 << nr;
+ else if (val == 2)
+ data->sensor |= 8 << nr;
+ it87_write_value(client, IT87_REG_TEMP_ENABLE, data->sensor);
+ return count;
+}
+#define show_sensor_offset(offset) \
+static ssize_t show_sensor_##offset (struct device *dev, char *buf) \
+{ \
+ return show_sensor(dev, buf, 0x##offset - 1); \
+} \
+static ssize_t set_sensor_##offset (struct device *dev, \
+ const char *buf, size_t count) \
+{ \
+ return set_sensor(dev, buf, count, 0x##offset - 1); \
+} \
+static DEVICE_ATTR(sensor##offset, S_IRUGO | S_IWUSR, \
+ show_sensor_##offset, set_sensor_##offset)
+
+show_sensor_offset(1);
+show_sensor_offset(2);
+show_sensor_offset(3);
+
+/* 3 Fans */
static ssize_t show_fan(struct device *dev, char *buf, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
@@ -508,6 +558,7 @@
show_fan_offset(1);
show_fan_offset(2);
+show_fan_offset(3);
/* Alarm */
static ssize_t show_alarm(struct device *dev, char *buf)
@@ -576,6 +627,7 @@
}
}
}
+ memset (new_client, 0x00, sizeof(struct i2c_client) + sizeof(struct it87_data));
/* OK. For now, we presume we have a valid client. We now create the
client structure, even though we cannot fill it completely yet.
@@ -656,16 +708,28 @@
device_create_file(&new_client->dev, &dev_attr_in_input2);
device_create_file(&new_client->dev, &dev_attr_in_input3);
device_create_file(&new_client->dev, &dev_attr_in_input4);
+ device_create_file(&new_client->dev, &dev_attr_in_input5);
+ device_create_file(&new_client->dev, &dev_attr_in_input6);
+ device_create_file(&new_client->dev, &dev_attr_in_input7);
+ device_create_file(&new_client->dev, &dev_attr_in_input8);
device_create_file(&new_client->dev, &dev_attr_in_min0);
device_create_file(&new_client->dev, &dev_attr_in_min1);
device_create_file(&new_client->dev, &dev_attr_in_min2);
device_create_file(&new_client->dev, &dev_attr_in_min3);
device_create_file(&new_client->dev, &dev_attr_in_min4);
+ device_create_file(&new_client->dev, &dev_attr_in_min5);
+ device_create_file(&new_client->dev, &dev_attr_in_min6);
+ device_create_file(&new_client->dev, &dev_attr_in_min7);
+ device_create_file(&new_client->dev, &dev_attr_in_min8);
device_create_file(&new_client->dev, &dev_attr_in_max0);
device_create_file(&new_client->dev, &dev_attr_in_max1);
device_create_file(&new_client->dev, &dev_attr_in_max2);
device_create_file(&new_client->dev, &dev_attr_in_max3);
device_create_file(&new_client->dev, &dev_attr_in_max4);
+ device_create_file(&new_client->dev, &dev_attr_in_max5);
+ device_create_file(&new_client->dev, &dev_attr_in_max6);
+ device_create_file(&new_client->dev, &dev_attr_in_max7);
+ device_create_file(&new_client->dev, &dev_attr_in_max8);
device_create_file(&new_client->dev, &dev_attr_temp_input1);
device_create_file(&new_client->dev, &dev_attr_temp_input2);
device_create_file(&new_client->dev, &dev_attr_temp_input3);
@@ -675,16 +739,22 @@
device_create_file(&new_client->dev, &dev_attr_temp_min1);
device_create_file(&new_client->dev, &dev_attr_temp_min2);
device_create_file(&new_client->dev, &dev_attr_temp_min3);
+ device_create_file(&new_client->dev, &dev_attr_sensor1);
+ device_create_file(&new_client->dev, &dev_attr_sensor2);
+ device_create_file(&new_client->dev, &dev_attr_sensor3);
device_create_file(&new_client->dev, &dev_attr_fan_input1);
device_create_file(&new_client->dev, &dev_attr_fan_input2);
+ device_create_file(&new_client->dev, &dev_attr_fan_input3);
device_create_file(&new_client->dev, &dev_attr_fan_min1);
device_create_file(&new_client->dev, &dev_attr_fan_min2);
+ device_create_file(&new_client->dev, &dev_attr_fan_min3);
device_create_file(&new_client->dev, &dev_attr_fan_div1);
device_create_file(&new_client->dev, &dev_attr_fan_div2);
+ device_create_file(&new_client->dev, &dev_attr_fan_div3);
device_create_file(&new_client->dev, &dev_attr_alarm);
/* Initialize the IT87 chip */
- it87_init_client(new_client);
+ it87_init_client(new_client, data);
return 0;
ERROR1:
@@ -757,7 +827,7 @@
}
/* Called when we have found a new IT87. It should set limits, etc. */
-static void it87_init_client(struct i2c_client *client)
+static void it87_init_client(struct i2c_client *client, struct it87_data *data)
{
/* Reset all except Watchdog values and last conversion values
This sets fan-divs to 2, among others */
@@ -818,9 +888,9 @@
it87_write_value(client, IT87_REG_VIN_ENABLE, 0xff);
/* Enable Temp1-Temp3 */
- it87_write_value(client, IT87_REG_TEMP_ENABLE,
- (it87_read_value(client, IT87_REG_TEMP_ENABLE) & 0xc0)
- | (temp_type & 0x3f));
+ data->sensor = (it87_read_value(client, IT87_REG_TEMP_ENABLE) & 0xc0);
+ data->sensor |= temp_type & 0x3f;
+ it87_write_value(client, IT87_REG_TEMP_ENABLE, data->sensor);
/* Enable fans */
it87_write_value(client, IT87_REG_FAN_CTRL,
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/