hwmon: (w83627hf) Refactor beep enable handling

We can handle the beep enable bit as any other beep mask bit for
slightly smaller code.

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

diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c
index c02c3bb..9564fb0 100644 (file)
--- a/drivers/hwmon/w83627hf.c
+++ b/drivers/hwmon/w83627hf.c
@@ -323,10 +323,8 @@ static inline u8 pwm_freq_to_reg(unsigned long val)
                return (0x80 | (180000UL / (val << 8)));
 }
 
-#define BEEP_MASK_FROM_REG(val)                 (val)
-#define BEEP_MASK_TO_REG(val)          ((val) & 0xffffff)
-#define BEEP_ENABLE_TO_REG(val)                ((val)?1:0)
-#define BEEP_ENABLE_FROM_REG(val)      ((val)?1:0)
+#define BEEP_MASK_FROM_REG(val)                ((val) & 0xff7fff)
+#define BEEP_MASK_TO_REG(val)          ((val) & 0xff7fff)
 
 #define DIV_FROM_REG(val) (1 << (val))
 
@@ -367,7 +365,6 @@ struct w83627hf_data {
        u8 vid;                 /* Register encoding, combined */
        u32 alarms;             /* Register encoding, combined */
        u32 beep_mask;          /* Register encoding, combined */
-       u8 beep_enable;         /* Boolean */
        u8 pwm[3];              /* Register value */
        u8 pwm_freq[3];         /* Register value */
        u16 sens[3];            /* 1 = pentium diode; 2 = 3904 diode;
@@ -740,65 +737,41 @@ static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13);
 
-#define show_beep_reg(REG, reg) \
-static ssize_t show_beep_##reg (struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
-       struct w83627hf_data *data = w83627hf_update_device(dev); \
-       return sprintf(buf,"%ld\n", \
-                     (long)BEEP_##REG##_FROM_REG(data->beep_##reg)); \
+static ssize_t
+show_beep_mask(struct device *dev, struct device_attribute *attr, char *buf)
+{
+       struct w83627hf_data *data = w83627hf_update_device(dev);
+       return sprintf(buf, "%ld\n",
+                     (long)BEEP_MASK_FROM_REG(data->beep_mask));
 }
-show_beep_reg(ENABLE, enable)
-show_beep_reg(MASK, mask)
-
-#define BEEP_ENABLE                    0       /* Store beep_enable */
-#define BEEP_MASK                      1       /* Store beep_mask */
 
 static ssize_t
-store_beep_reg(struct device *dev, const char *buf, size_t count,
-              int update_mask)
+store_beep_mask(struct device *dev, struct device_attribute *attr,
+               const char *buf, size_t count)
 {
        struct w83627hf_data *data = dev_get_drvdata(dev);
-       u32 val, val2;
+       unsigned long val;
 
        val = simple_strtoul(buf, NULL, 10);
 
        mutex_lock(&data->update_lock);
 
-       if (update_mask == BEEP_MASK) { /* We are storing beep_mask */
-               data->beep_mask = BEEP_MASK_TO_REG(val);
-               w83627hf_write_value(data, W83781D_REG_BEEP_INTS1,
-                                   data->beep_mask & 0xff);
-               w83627hf_write_value(data, W83781D_REG_BEEP_INTS3,
-                                   ((data->beep_mask) >> 16) & 0xff);
-               val2 = (data->beep_mask >> 8) & 0x7f;
-       } else {                /* We are storing beep_enable */
-               val2 =
-                   w83627hf_read_value(data, W83781D_REG_BEEP_INTS2) & 0x7f;
-               data->beep_enable = BEEP_ENABLE_TO_REG(val);
-       }
-
+       /* preserve beep enable */
+       data->beep_mask = (data->beep_mask & 0x8000)
+                       | BEEP_MASK_TO_REG(val);
+       w83627hf_write_value(data, W83781D_REG_BEEP_INTS1,
+                           data->beep_mask & 0xff);
+       w83627hf_write_value(data, W83781D_REG_BEEP_INTS3,
+                           ((data->beep_mask) >> 16) & 0xff);
        w83627hf_write_value(data, W83781D_REG_BEEP_INTS2,
-                           val2 | data->beep_enable << 7);
+                           (data->beep_mask >> 8) & 0xff);
 
        mutex_unlock(&data->update_lock);
        return count;
 }
 
-#define sysfs_beep(REG, reg) \
-static ssize_t show_regs_beep_##reg (struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
-       return show_beep_##reg(dev, attr, buf); \
-} \
-static ssize_t \
-store_regs_beep_##reg (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
-{ \
-       return store_beep_reg(dev, buf, count, BEEP_##REG); \
-} \
-static DEVICE_ATTR(beep_##reg, S_IRUGO | S_IWUSR, \
-                 show_regs_beep_##reg, store_regs_beep_##reg);
-
-sysfs_beep(ENABLE, enable);
-sysfs_beep(MASK, mask);
+static DEVICE_ATTR(beep_mask, S_IRUGO | S_IWUSR,
+                  show_beep_mask, store_beep_mask);
 
 static ssize_t
 show_beep(struct device *dev, struct device_attribute *attr, char *buf)
@@ -884,6 +857,8 @@ static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO | S_IWUSR,
                        show_beep, store_beep, 5);
 static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO | S_IWUSR,
                        show_beep, store_beep, 13);
+static SENSOR_DEVICE_ATTR(beep_enable, S_IRUGO | S_IWUSR,
+                       show_beep, store_beep, 15);
 
 static ssize_t
 show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
@@ -1223,7 +1198,7 @@ static struct attribute *w83627hf_attributes[] = {
        TEMP_UNIT_ATTRS(2),
 
        &dev_attr_alarms.attr,
-       &dev_attr_beep_enable.attr,
+       &sensor_dev_attr_beep_enable.dev_attr.attr,
        &dev_attr_beep_mask.attr,
 
        &sensor_dev_attr_pwm1.dev_attr.attr,
@@ -1748,8 +1723,7 @@ static struct w83627hf_data *w83627hf_update_device(struct device *dev)
                    (w83627hf_read_value(data, W83781D_REG_ALARM2) << 8) |
                    (w83627hf_read_value(data, W83781D_REG_ALARM3) << 16);
                i = w83627hf_read_value(data, W83781D_REG_BEEP_INTS2);
-               data->beep_enable = i >> 7;
-               data->beep_mask = ((i & 0x7f) << 8) |
+               data->beep_mask = (i << 8) |
                    w83627hf_read_value(data, W83781D_REG_BEEP_INTS1) |
                    w83627hf_read_value(data, W83781D_REG_BEEP_INTS3) << 16;
                data->last_updated = jiffies;