We have a standard intrusion detection interface now, drivers should
implement it. I've left the old interface in place for the time being,
with a deprecation warning, it will be removed later.
Signed-off-by: Jean Delvare <khali@xxxxxxxxxxxx>
---
Documentation/hwmon/adm9240 | 2 +-
drivers/hwmon/adm9240.c | 31 ++++++++++++++++++++++++++++---
2 files changed, 29 insertions(+), 4 deletions(-)
--- linux-2.6.37-rc1.orig/drivers/hwmon/adm9240.c 2010-11-02 14:32:58.000000000 +0100
+++ linux-2.6.37-rc1/drivers/hwmon/adm9240.c 2010-11-02 16:50:55.000000000 +0100
@@ -20,7 +20,7 @@
* Alarms 16-bit map of active alarms
* Analog Out 0..1250 mV output
*
- * Chassis Intrusion: clear CI latch with 'echo 1 > chassis_clear'
+ * Chassis Intrusion: clear CI latch with 'echo 0 > intrusion0_alarm'
*
* Test hardware: Intel SE440BX-2 desktop motherboard --Grant
*
@@ -476,13 +476,15 @@ static ssize_t set_aout(struct device *d
static DEVICE_ATTR(aout_output, S_IRUGO | S_IWUSR, show_aout, set_aout);
/* chassis_clear */
-static ssize_t chassis_clear(struct device *dev,
+static ssize_t chassis_clear_legacy(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
unsigned long val = simple_strtol(buf, NULL, 10);
+ dev_warn(&client->dev, "Attribute chassis_clear is deprecated, "
+ "use intrusion0_alarm instead\n");
if (val == 1) {
i2c_smbus_write_byte_data(client,
ADM9240_REG_CHASSIS_CLEAR, 0x80);
@@ -490,7 +492,29 @@ static ssize_t chassis_clear(struct devi
}
return count;
}
-static DEVICE_ATTR(chassis_clear, S_IWUSR, NULL, chassis_clear);
+static DEVICE_ATTR(chassis_clear, S_IWUSR, NULL, chassis_clear_legacy);
+
+static ssize_t chassis_clear(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm9240_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) || val != 0)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ data->alarms &= ~(1 << 12);
+ i2c_smbus_write_byte_data(client, ADM9240_REG_CHASSIS_CLEAR, 0x80);
+ mutex_unlock(&data->update_lock);
+ dev_dbg(&client->dev, "chassis intrusion latch cleared\n");
+
+ return count;
+}
+static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR, show_alarm,
+ chassis_clear, 12);
static struct attribute *adm9240_attributes[] = {
&sensor_dev_attr_in0_input.dev_attr.attr,
@@ -532,6 +556,7 @@ static struct attribute *adm9240_attribu
&dev_attr_alarms.attr,
&dev_attr_aout_output.attr,
&dev_attr_chassis_clear.attr,
+ &sensor_dev_attr_intrusion0_alarm.dev_attr.attr,
&dev_attr_cpu0_vid.attr,
NULL
};
--- linux-2.6.37-rc1.orig/Documentation/hwmon/adm9240 2010-08-02 00:11:14.000000000 +0200
+++ linux-2.6.37-rc1/Documentation/hwmon/adm9240 2010-11-02 14:42:12.000000000 +0100
@@ -155,7 +155,7 @@ connected to a normally open switch.
The ADM9240 provides an internal open drain on this line, and may output
a 20 ms active low pulse to reset an external Chassis Intrusion latch.
-Clear the CI latch by writing value 1 to the sysfs chassis_clear file.
+Clear the CI latch by writing value 0 to the sysfs intrusion0_alarm file.
Alarm flags reported as 16-bit word
--
Jean Delvare
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