hwmon: (w83791d) new sysfs beep/alarm methodology

Add new sysfs alarm methodology to w83791d driver

Signed-off-by: Charles Spirakis <bezaur@gmail.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>

1 files changed, 118 insertions, 4 deletions

diff --git a/drivers/hwmon/w83791d.c b/drivers/hwmon/w83791d.c
index a3cb89455ea7..de4eb3e7b271 100644
--- a/drivers/hwmon/w83791d.c
+++ b/drivers/hwmon/w83791d.c
@@ -2,7 +2,7 @@
     w83791d.c - Part of lm_sensors, Linux kernel modules for hardware
                 monitoring
 
-    Copyright (C) 2006 Charles Spirakis <bezaur@gmail.com>
+    Copyright (C) 2006-2007 Charles Spirakis <bezaur@gmail.com>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -384,6 +384,85 @@ static struct sensor_device_attribute sda_in_max[] = {
         SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9),
 };
 
+
+static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
+                        char *buf)
+{
+        struct sensor_device_attribute *sensor_attr =
+                                                to_sensor_dev_attr(attr);
+        struct w83791d_data *data = w83791d_update_device(dev);
+        int bitnr = sensor_attr->index;
+
+        return sprintf(buf, "%d\n", (data->beep_mask >> bitnr) & 1);
+}
+
+static ssize_t store_beep(struct device *dev, struct device_attribute *attr,
+                        const char *buf, size_t count)
+{
+        struct sensor_device_attribute *sensor_attr =
+                                                to_sensor_dev_attr(attr);
+        struct i2c_client *client = to_i2c_client(dev);
+        struct w83791d_data *data = i2c_get_clientdata(client);
+        int bitnr = sensor_attr->index;
+        int bytenr = bitnr / 8;
+        long val = simple_strtol(buf, NULL, 10) ? 1 : 0;
+
+        mutex_lock(&data->update_lock);
+
+        data->beep_mask &= ~(0xff << (bytenr * 8));
+        data->beep_mask |= w83791d_read(client, W83791D_REG_BEEP_CTRL[bytenr])
+                << (bytenr * 8);
+
+        data->beep_mask &= ~(1 << bitnr);
+        data->beep_mask |= val << bitnr;
+
+        w83791d_write(client, W83791D_REG_BEEP_CTRL[bytenr],
+                (data->beep_mask >> (bytenr * 8)) & 0xff);
+
+        mutex_unlock(&data->update_lock);
+
+        return count;
+}
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+                        char *buf)
+{
+        struct sensor_device_attribute *sensor_attr =
+                                                to_sensor_dev_attr(attr);
+        struct w83791d_data *data = w83791d_update_device(dev);
+        int bitnr = sensor_attr->index;
+
+        return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1);
+}
+
+/* Note: The bitmask for the beep enable/disable is different than
+   the bitmask for the alarm. */
+static struct sensor_device_attribute sda_in_beep[] = {
+        SENSOR_ATTR(in0_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 0),
+        SENSOR_ATTR(in1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 13),
+        SENSOR_ATTR(in2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 2),
+        SENSOR_ATTR(in3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 3),
+        SENSOR_ATTR(in4_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 8),
+        SENSOR_ATTR(in5_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 9),
+        SENSOR_ATTR(in6_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 10),
+        SENSOR_ATTR(in7_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 16),
+        SENSOR_ATTR(in8_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 17),
+        SENSOR_ATTR(in9_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 14),
+};
+
+static struct sensor_device_attribute sda_in_alarm[] = {
+        SENSOR_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0),
+        SENSOR_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1),
+        SENSOR_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2),
+        SENSOR_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3),
+        SENSOR_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8),
+        SENSOR_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9),
+        SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 10),
+        SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19),
+        SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20),
+        SENSOR_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 14),
+};
+
 #define show_fan_reg(reg) \
 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
                                 char *buf) \
@@ -536,6 +615,22 @@ static struct sensor_device_attribute sda_fan_div[] = {
                         show_fan_div, store_fan_div, 4),
 };
 
+static struct sensor_device_attribute sda_fan_beep[] = {
+        SENSOR_ATTR(fan1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 6),
+        SENSOR_ATTR(fan2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 7),
+        SENSOR_ATTR(fan3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 11),
+        SENSOR_ATTR(fan4_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 21),
+        SENSOR_ATTR(fan5_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 22),
+};
+
+static struct sensor_device_attribute sda_fan_alarm[] = {
+        SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6),
+        SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7),
+        SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11),
+        SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21),
+        SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22),
+};
+
 /* read/write the temperature1, includes measured value and limits */
 static ssize_t show_temp1(struct device *dev, struct device_attribute *devattr,
                                 char *buf)
@@ -618,6 +713,19 @@ static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
                         show_temp23, store_temp23, 1, 2),
 };
 
+/* Note: The bitmask for the beep enable/disable is different than
+   the bitmask for the alarm. */
+static struct sensor_device_attribute sda_temp_beep[] = {
+        SENSOR_ATTR(temp1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 4),
+        SENSOR_ATTR(temp2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 5),
+        SENSOR_ATTR(temp3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 1),
+};
+
+static struct sensor_device_attribute sda_temp_alarm[] = {
+        SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
+        SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
+        SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
+};
 
 /* get reatime status of all sensors items: voltage, temp, fan */
 static ssize_t show_alarms_reg(struct device *dev,
@@ -749,17 +857,23 @@ static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
 #define IN_UNIT_ATTRS(X) \
         &sda_in_input[X].dev_attr.attr, \
         &sda_in_min[X].dev_attr.attr,   \
-        &sda_in_max[X].dev_attr.attr
+        &sda_in_max[X].dev_attr.attr,   \
+        &sda_in_beep[X].dev_attr.attr,  \
+        &sda_in_alarm[X].dev_attr.attr
 
 #define FAN_UNIT_ATTRS(X) \
         &sda_fan_input[X].dev_attr.attr,        \
         &sda_fan_min[X].dev_attr.attr,          \
-        &sda_fan_div[X].dev_attr.attr
+        &sda_fan_div[X].dev_attr.attr,          \
+        &sda_fan_beep[X].dev_attr.attr,         \
+        &sda_fan_alarm[X].dev_attr.attr
 
 #define TEMP_UNIT_ATTRS(X) \
         &sda_temp_input[X].dev_attr.attr,       \
         &sda_temp_max[X].dev_attr.attr,         \
-        &sda_temp_max_hyst[X].dev_attr.attr
+        &sda_temp_max_hyst[X].dev_attr.attr,    \
+        &sda_temp_beep[X].dev_attr.attr,        \
+        &sda_temp_alarm[X].dev_attr.attr
 
 static struct attribute *w83791d_attributes[] = {
         IN_UNIT_ATTRS(0),