1 files changed, 166 insertions, 4 deletions

diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index b6bd5685fd38..40301bc6ce18 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -30,10 +30,7 @@
     Supports the following chips:
 
     Chip        #vin    #fan    #pwm    #temp   chip_id man_id
-    w83627ehf   -       5       -       3       0x88    0x5ca3
-
-    This is a preliminary version of the driver, only supporting the
-    fan and temperature inputs. The chip does much more than that.
+    w83627ehf   10      5       -       3       0x88    0x5ca3
 */
 
 #include <linux/module.h>
@@ -121,6 +118,14 @@ superio_exit(void)
 static const u16 W83627EHF_REG_FAN[] = { 0x28, 0x29, 0x2a, 0x3f, 0x553 };
 static const u16 W83627EHF_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d, 0x3e, 0x55c };
 
+/* The W83627EHF registers for nr=7,8,9 are in bank 5 */
+#define W83627EHF_REG_IN_MAX(nr)        ((nr < 7) ? (0x2b + (nr) * 2) : \
+                                         (0x554 + (((nr) - 7) * 2)))
+#define W83627EHF_REG_IN_MIN(nr)        ((nr < 7) ? (0x2c + (nr) * 2) : \
+                                         (0x555 + (((nr) - 7) * 2)))
+#define W83627EHF_REG_IN(nr)            ((nr < 7) ? (0x20 + (nr)) : \
+                                         (0x550 + (nr) - 7))
+
 #define W83627EHF_REG_TEMP1             0x27
 #define W83627EHF_REG_TEMP1_HYST        0x3a
 #define W83627EHF_REG_TEMP1_OVER        0x39
@@ -136,6 +141,10 @@ static const u16 W83627EHF_REG_TEMP_CONFIG[] = { 0x152, 0x252 };
 #define W83627EHF_REG_DIODE             0x59
 #define W83627EHF_REG_SMI_OVT           0x4C
 
+#define W83627EHF_REG_ALARM1            0x459
+#define W83627EHF_REG_ALARM2            0x45A
+#define W83627EHF_REG_ALARM3            0x45B
+
 /*
  * Conversions
  */
@@ -172,6 +181,20 @@ temp1_to_reg(int temp)
         return (temp + 500) / 1000;
 }
 
+/* Some of analog inputs have internal scaling (2x), 8mV is ADC LSB */
+
+static u8 scale_in[10] = { 8, 8, 16, 16, 8, 8, 8, 16, 16, 8 };
+
+static inline long in_from_reg(u8 reg, u8 nr)
+{
+        return reg * scale_in[nr];
+}
+
+static inline u8 in_to_reg(u32 val, u8 nr)
+{
+        return SENSORS_LIMIT(((val + (scale_in[nr] / 2)) / scale_in[nr]), 0, 255);
+}
+
 /*
  * Data structures and manipulation thereof
  */
@@ -186,6 +209,9 @@ struct w83627ehf_data {
         unsigned long last_updated;     /* In jiffies */
 
         /* Register values */
+        u8 in[10];              /* Register value */
+        u8 in_max[10];          /* Register value */
+        u8 in_min[10];          /* Register value */
         u8 fan[5];
         u8 fan_min[5];
         u8 fan_div[5];
@@ -196,6 +222,7 @@ struct w83627ehf_data {
         s16 temp[2];
         s16 temp_max[2];
         s16 temp_max_hyst[2];
+        u32 alarms;
 };
 
 static inline int is_word_sized(u16 reg)
@@ -349,6 +376,16 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
                         data->fan_div[3] |= (i >> 5) & 0x04;
                 }
 
+                /* Measured voltages and limits */
+                for (i = 0; i < 10; i++) {
+                        data->in[i] = w83627ehf_read_value(client,
+                                      W83627EHF_REG_IN(i));
+                        data->in_min[i] = w83627ehf_read_value(client,
+                                          W83627EHF_REG_IN_MIN(i));
+                        data->in_max[i] = w83627ehf_read_value(client,
+                                          W83627EHF_REG_IN_MAX(i));
+                }
+
                 /* Measured fan speeds and limits */
                 for (i = 0; i < 5; i++) {
                         if (!(data->has_fan & (1 << i)))
@@ -395,6 +432,13 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
                                                  W83627EHF_REG_TEMP_HYST[i]);
                 }
 
+                data->alarms = w83627ehf_read_value(client,
+                                        W83627EHF_REG_ALARM1) |
+                               (w83627ehf_read_value(client,
+                                        W83627EHF_REG_ALARM2) << 8) |
+                               (w83627ehf_read_value(client,
+                                        W83627EHF_REG_ALARM3) << 16);
+
                 data->last_updated = jiffies;
                 data->valid = 1;
         }
@@ -406,6 +450,109 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
 /*
  * Sysfs callback functions
  */
+#define show_in_reg(reg) \
+static ssize_t \
+show_##reg(struct device *dev, struct device_attribute *attr, \
+           char *buf) \
+{ \
+        struct w83627ehf_data *data = w83627ehf_update_device(dev); \
+        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+        int nr = sensor_attr->index; \
+        return sprintf(buf, "%ld\n", in_from_reg(data->reg[nr], nr)); \
+}
+show_in_reg(in)
+show_in_reg(in_min)
+show_in_reg(in_max)
+
+#define store_in_reg(REG, reg) \
+static ssize_t \
+store_in_##reg (struct device *dev, struct device_attribute *attr, \
+                        const char *buf, size_t count) \
+{ \
+        struct i2c_client *client = to_i2c_client(dev); \
+        struct w83627ehf_data *data = i2c_get_clientdata(client); \
+        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+        int nr = sensor_attr->index; \
+        u32 val = simple_strtoul(buf, NULL, 10); \
+ \
+        mutex_lock(&data->update_lock); \
+        data->in_##reg[nr] = in_to_reg(val, nr); \
+        w83627ehf_write_value(client, W83627EHF_REG_IN_##REG(nr), \
+                              data->in_##reg[nr]); \
+        mutex_unlock(&data->update_lock); \
+        return count; \
+}
+
+store_in_reg(MIN, min)
+store_in_reg(MAX, max)
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+        struct w83627ehf_data *data = w83627ehf_update_device(dev);
+        struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+        int nr = sensor_attr->index;
+        return sprintf(buf, "%u\n", (data->alarms >> nr) & 0x01);
+}
+
+static struct sensor_device_attribute sda_in_input[] = {
+        SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
+        SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
+        SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
+        SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
+        SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
+        SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
+        SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
+        SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
+        SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
+        SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9),
+};
+
+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, 21),
+        SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 20),
+        SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16),
+        SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17),
+        SENSOR_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 19),
+};
+
+static struct sensor_device_attribute sda_in_min[] = {
+       SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0),
+       SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1),
+       SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2),
+       SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3),
+       SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4),
+       SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5),
+       SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6),
+       SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7),
+       SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8),
+       SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9),
+};
+
+static struct sensor_device_attribute sda_in_max[] = {
+       SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0),
+       SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1),
+       SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2),
+       SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3),
+       SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4),
+       SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5),
+       SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6),
+       SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7),
+       SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8),
+       SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9),
+};
+
+static void device_create_file_in(struct device *dev, int i)
+{
+        device_create_file(dev, &sda_in_input[i].dev_attr);
+        device_create_file(dev, &sda_in_alarm[i].dev_attr);
+        device_create_file(dev, &sda_in_min[i].dev_attr);
+        device_create_file(dev, &sda_in_max[i].dev_attr);
+}
 
 #define show_fan_reg(reg) \
 static ssize_t \
@@ -505,6 +652,14 @@ static struct sensor_device_attribute sda_fan_input[] = {
         SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
 };
 
+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, 10),
+        SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 23),
+};
+
 static struct sensor_device_attribute sda_fan_min[] = {
         SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
                     store_fan_min, 0),
@@ -529,6 +684,7 @@ static struct sensor_device_attribute sda_fan_div[] = {
 static void device_create_file_fan(struct device *dev, int i)
 {
         device_create_file(dev, &sda_fan_input[i].dev_attr);
+        device_create_file(dev, &sda_fan_alarm[i].dev_attr);
         device_create_file(dev, &sda_fan_div[i].dev_attr);
         device_create_file(dev, &sda_fan_min[i].dev_attr);
 }
@@ -616,6 +772,9 @@ static struct sensor_device_attribute sda_temp[] = {
                     store_temp_max_hyst, 0),
         SENSOR_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
                     store_temp_max_hyst, 1),
+        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),
 };
 
 /*
@@ -705,6 +864,9 @@ static int w83627ehf_detect(struct i2c_adapter *adapter)
                 goto exit_detach;
         }
 
+        for (i = 0; i < 10; i++)
+                device_create_file_in(dev, i);
+
         for (i = 0; i < 5; i++) {
                 if (data->has_fan & (1 << i))
                         device_create_file_fan(dev, i);