[ patch 2.6.27-rc6 2/6 v2] separate alarm sysfs files - voltages

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 From a2404d358743dc62510fcd2f829c02da0d0f19e9 Mon Sep 17 00:00:00 2001
From: Jim Cromie <jim.cromie at gmail.com>
Date: Sat, 28 Jun 2008 12:25:52 -0600
Subject: [PATCH] hwmon/pc87360 separate alarm files - add in-min/max-alarms

Adds vin-min/max-alarm callbacks, sensor-device-attribute
declarations, and refs to those new decls in the macro used to
initialize the vin_group (of sysfs files).
Includes style nit fix per akpm's feedback.

Signed-off-by: Jim Cromie <jim.cromie at gmail.com>
---
 drivers/hwmon/pc87360.c |   54 
++++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 53 insertions(+), 1 deletions(-)

diff --git a/drivers/hwmon/pc87360.c b/drivers/hwmon/pc87360.c
index 1043b11..538f784 100644
--- a/drivers/hwmon/pc87360.c
+++ b/drivers/hwmon/pc87360.c
@@ -494,11 +494,63 @@ static struct sensor_device_attribute in_max[] = {
 #define CHAN_ALM_MAX    0x04    /* max limit exceeded */
 #define TEMP_ALM_CRIT    0x08    /* temp crit exceeded (temp only) */
 
+/* show_in_min/max_alarm() reads data from the per-channel status
+   register (sec 11.5.12), not the vin event status registers (sec
+   11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms) */
+
+static ssize_t
+show_in_min_alarm(struct device *dev, struct device_attribute *devattr,
+          char *buf)
+{
+    struct pc87360_data *data = pc87360_update_device(dev);
+    unsigned nr = to_sensor_dev_attr(devattr)->index;
+
+    return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
+}
+static ssize_t
+show_in_max_alarm(struct device *dev, struct device_attribute *devattr,
+          char *buf)
+{
+    struct pc87360_data *data = pc87360_update_device(dev);
+    unsigned nr = to_sensor_dev_attr(devattr)->index;
+
+    return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
+}
+
+static struct sensor_device_attribute in_min_alarm[] = {
+    SENSOR_ATTR(in0_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 0),
+    SENSOR_ATTR(in1_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 1),
+    SENSOR_ATTR(in2_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 2),
+    SENSOR_ATTR(in3_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 3),
+    SENSOR_ATTR(in4_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 4),
+    SENSOR_ATTR(in5_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 5),
+    SENSOR_ATTR(in6_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 6),
+    SENSOR_ATTR(in7_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 7),
+    SENSOR_ATTR(in8_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 8),
+    SENSOR_ATTR(in9_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 9),
+    SENSOR_ATTR(in10_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 10),
+};
+static struct sensor_device_attribute in_max_alarm[] = {
+    SENSOR_ATTR(in0_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 0),
+    SENSOR_ATTR(in1_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 1),
+    SENSOR_ATTR(in2_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 2),
+    SENSOR_ATTR(in3_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 3),
+    SENSOR_ATTR(in4_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 4),
+    SENSOR_ATTR(in5_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 5),
+    SENSOR_ATTR(in6_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 6),
+    SENSOR_ATTR(in7_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 7),
+    SENSOR_ATTR(in8_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 8),
+    SENSOR_ATTR(in9_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 9),
+    SENSOR_ATTR(in10_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 10),
+};
+
 #define VIN_UNIT_ATTRS(X) \
     &in_input[X].dev_attr.attr,    \
     &in_status[X].dev_attr.attr,    \
     &in_min[X].dev_attr.attr,    \
-    &in_max[X].dev_attr.attr
+    &in_max[X].dev_attr.attr,    \
+    &in_min_alarm[X].dev_attr.attr,    \
+    &in_max_alarm[X].dev_attr.attr
 
 static ssize_t show_vid(struct device *dev, struct device_attribute 
*attr, char *buf)
 {
-- 
1.5.5.1


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