hwmon: (it87) Add support for beep on alarm
[safe/jmp/linux-2.6] / drivers / hwmon / sis5595.c
index c56bae3..79c2931 100644 (file)
@@ -3,7 +3,7 @@
                for hardware monitoring
 
     Copyright (C) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>,
-                       Kyösti Mälkki <kmalkki@cc.hut.fi>, and
+                       Kyösti Mälkki <kmalkki@cc.hut.fi>, and
                        Mark D. Studebaker <mdsxyz123@yahoo.com>
     Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with
     the help of Jean Delvare <khali@linux-fr.org>
 #include <linux/pci.h>
 #include <linux/platform_device.h>
 #include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/jiffies.h>
 #include <linux/mutex.h>
 #include <linux/sysfs.h>
-#include <asm/io.h>
+#include <linux/acpi.h>
+#include <linux/io.h>
 
 
 /* If force_addr is set to anything different from 0, we forcibly enable
@@ -78,7 +80,6 @@ static struct platform_device *pdev;
 /* Length of ISA address segment */
 #define SIS5595_EXTENT 8
 /* PCI Config Registers */
-#define SIS5595_REVISION_REG 0x08
 #define SIS5595_BASE_REG 0x68
 #define SIS5595_PIN_REG 0x7A
 #define SIS5595_ENABLE_REG 0x7B
@@ -163,7 +164,7 @@ static inline u8 DIV_TO_REG(int val)
 struct sis5595_data {
        unsigned short addr;
        const char *name;
-       struct class_device *class_dev;
+       struct device *hwmon_dev;
        struct mutex lock;
 
        struct mutex update_lock;
@@ -187,7 +188,7 @@ struct sis5595_data {
 static struct pci_dev *s_bridge;       /* pointer to the (only) sis5595 */
 
 static int sis5595_probe(struct platform_device *pdev);
-static int sis5595_remove(struct platform_device *pdev);
+static int __devexit sis5595_remove(struct platform_device *pdev);
 
 static int sis5595_read_value(struct sis5595_data *data, u8 reg);
 static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 value);
@@ -204,28 +205,39 @@ static struct platform_driver sis5595_driver = {
 };
 
 /* 4 Voltages */
-static ssize_t show_in(struct device *dev, char *buf, int nr)
+static ssize_t show_in(struct device *dev, struct device_attribute *da,
+                      char *buf)
 {
        struct sis5595_data *data = sis5595_update_device(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr]));
 }
 
-static ssize_t show_in_min(struct device *dev, char *buf, int nr)
+static ssize_t show_in_min(struct device *dev, struct device_attribute *da,
+                          char *buf)
 {
        struct sis5595_data *data = sis5595_update_device(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr]));
 }
 
-static ssize_t show_in_max(struct device *dev, char *buf, int nr)
+static ssize_t show_in_max(struct device *dev, struct device_attribute *da,
+                          char *buf)
 {
        struct sis5595_data *data = sis5595_update_device(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr]));
 }
 
-static ssize_t set_in_min(struct device *dev, const char *buf,
-              size_t count, int nr)
+static ssize_t set_in_min(struct device *dev, struct device_attribute *da,
+                         const char *buf, size_t count)
 {
        struct sis5595_data *data = dev_get_drvdata(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        unsigned long val = simple_strtoul(buf, NULL, 10);
 
        mutex_lock(&data->update_lock);
@@ -235,10 +247,12 @@ static ssize_t set_in_min(struct device *dev, const char *buf,
        return count;
 }
 
-static ssize_t set_in_max(struct device *dev, const char *buf,
-              size_t count, int nr)
+static ssize_t set_in_max(struct device *dev, struct device_attribute *da,
+                         const char *buf, size_t count)
 {
        struct sis5595_data *data = dev_get_drvdata(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        unsigned long val = simple_strtoul(buf, NULL, 10);
 
        mutex_lock(&data->update_lock);
@@ -249,37 +263,12 @@ static ssize_t set_in_max(struct device *dev, const char *buf,
 }
 
 #define show_in_offset(offset)                                 \
-static ssize_t                                                 \
-       show_in##offset (struct device *dev, struct device_attribute *attr, char *buf)          \
-{                                                              \
-       return show_in(dev, buf, offset);                       \
-}                                                              \
-static DEVICE_ATTR(in##offset##_input, S_IRUGO,                \
-               show_in##offset, NULL);                         \
-static ssize_t                                                 \
-       show_in##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)    \
-{                                                              \
-       return show_in_min(dev, buf, offset);                   \
-}                                                              \
-static ssize_t                                                 \
-       show_in##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)    \
-{                                                              \
-       return show_in_max(dev, buf, offset);                   \
-}                                                              \
-static ssize_t set_in##offset##_min (struct device *dev, struct device_attribute *attr,        \
-               const char *buf, size_t count)                  \
-{                                                              \
-       return set_in_min(dev, buf, count, offset);             \
-}                                                              \
-static ssize_t set_in##offset##_max (struct device *dev, struct device_attribute *attr,        \
-               const char *buf, size_t count)                  \
-{                                                              \
-       return set_in_max(dev, buf, count, offset);             \
-}                                                              \
-static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,                \
-               show_in##offset##_min, set_in##offset##_min);   \
-static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,                \
-               show_in##offset##_max, set_in##offset##_max);
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,         \
+               show_in, NULL, offset);                         \
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
+               show_in_min, set_in_min, offset);               \
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
+               show_in_max, set_in_max, offset);
 
 show_in_offset(0);
 show_in_offset(1);
@@ -337,24 +326,32 @@ static DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
                show_temp_hyst, set_temp_hyst);
 
 /* 2 Fans */
-static ssize_t show_fan(struct device *dev, char *buf, int nr)
+static ssize_t show_fan(struct device *dev, struct device_attribute *da,
+                       char *buf)
 {
        struct sis5595_data *data = sis5595_update_device(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
                DIV_FROM_REG(data->fan_div[nr])) );
 }
 
-static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
+static ssize_t show_fan_min(struct device *dev, struct device_attribute *da,
+                           char *buf)
 {
        struct sis5595_data *data = sis5595_update_device(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr],
                DIV_FROM_REG(data->fan_div[nr])) );
 }
 
-static ssize_t set_fan_min(struct device *dev, const char *buf,
-               size_t count, int nr)
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *da,
+                          const char *buf, size_t count)
 {
        struct sis5595_data *data = dev_get_drvdata(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        unsigned long val = simple_strtoul(buf, NULL, 10);
 
        mutex_lock(&data->update_lock);
@@ -364,9 +361,12 @@ static ssize_t set_fan_min(struct device *dev, const char *buf,
        return count;
 }
 
-static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
+static ssize_t show_fan_div(struct device *dev, struct device_attribute *da,
+                           char *buf)
 {
        struct sis5595_data *data = sis5595_update_device(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]) );
 }
 
@@ -374,10 +374,12 @@ static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
    determined in part by the fan divisor.  This follows the principle of
    least surprise; the user doesn't expect the fan minimum to change just
    because the divisor changed. */
-static ssize_t set_fan_div(struct device *dev, const char *buf,
-       size_t count, int nr)
+static ssize_t set_fan_div(struct device *dev, struct device_attribute *da,
+                          const char *buf, size_t count)
 {
        struct sis5595_data *data = dev_get_drvdata(dev);
+       struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+       int nr = attr->index;
        unsigned long min;
        unsigned long val = simple_strtoul(buf, NULL, 10);
        int reg;
@@ -416,46 +418,16 @@ static ssize_t set_fan_div(struct device *dev, const char *buf,
 }
 
 #define show_fan_offset(offset)                                                \
-static ssize_t show_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf)        \
-{                                                                      \
-       return show_fan(dev, buf, offset - 1);                  \
-}                                                                      \
-static ssize_t show_fan_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)  \
-{                                                                      \
-       return show_fan_min(dev, buf, offset - 1);                      \
-}                                                                      \
-static ssize_t show_fan_##offset##_div (struct device *dev, struct device_attribute *attr, char *buf)  \
-{                                                                      \
-       return show_fan_div(dev, buf, offset - 1);                      \
-}                                                                      \
-static ssize_t set_fan_##offset##_min (struct device *dev, struct device_attribute *attr,              \
-               const char *buf, size_t count)                          \
-{                                                                      \
-       return set_fan_min(dev, buf, count, offset - 1);                \
-}                                                                      \
-static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, NULL);\
-static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,               \
-               show_fan_##offset##_min, set_fan_##offset##_min);
+static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,                        \
+               show_fan, NULL, offset - 1);                            \
+static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,                \
+               show_fan_min, set_fan_min, offset - 1);                 \
+static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR,                \
+               show_fan_div, set_fan_div, offset - 1);
 
 show_fan_offset(1);
 show_fan_offset(2);
 
-static ssize_t set_fan_1_div(struct device *dev, struct device_attribute *attr, const char *buf,
-               size_t count)
-{
-       return set_fan_div(dev, buf, count, 0) ;
-}
-
-static ssize_t set_fan_2_div(struct device *dev, struct device_attribute *attr, const char *buf,
-               size_t count)
-{
-       return set_fan_div(dev, buf, count, 1) ;
-}
-static DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR,
-               show_fan_1_div, set_fan_1_div);
-static DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR,
-               show_fan_2_div, set_fan_2_div);
-
 /* Alarms */
 static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
 {
@@ -464,6 +436,22 @@ static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, ch
 }
 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
 
+static ssize_t show_alarm(struct device *dev, struct device_attribute *da,
+                         char *buf)
+{
+       struct sis5595_data *data = sis5595_update_device(dev);
+       int nr = to_sensor_dev_attr(da)->index;
+       return sprintf(buf, "%u\n", (data->alarms >> nr) & 1);
+}
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 15);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 15);
+
 static ssize_t show_name(struct device *dev, struct device_attribute *attr,
                         char *buf)
 {
@@ -473,25 +461,31 @@ static ssize_t show_name(struct device *dev, struct device_attribute *attr,
 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
 
 static struct attribute *sis5595_attributes[] = {
-       &dev_attr_in0_input.attr,
-       &dev_attr_in0_min.attr,
-       &dev_attr_in0_max.attr,
-       &dev_attr_in1_input.attr,
-       &dev_attr_in1_min.attr,
-       &dev_attr_in1_max.attr,
-       &dev_attr_in2_input.attr,
-       &dev_attr_in2_min.attr,
-       &dev_attr_in2_max.attr,
-       &dev_attr_in3_input.attr,
-       &dev_attr_in3_min.attr,
-       &dev_attr_in3_max.attr,
-
-       &dev_attr_fan1_input.attr,
-       &dev_attr_fan1_min.attr,
-       &dev_attr_fan1_div.attr,
-       &dev_attr_fan2_input.attr,
-       &dev_attr_fan2_min.attr,
-       &dev_attr_fan2_div.attr,
+       &sensor_dev_attr_in0_input.dev_attr.attr,
+       &sensor_dev_attr_in0_min.dev_attr.attr,
+       &sensor_dev_attr_in0_max.dev_attr.attr,
+       &sensor_dev_attr_in0_alarm.dev_attr.attr,
+       &sensor_dev_attr_in1_input.dev_attr.attr,
+       &sensor_dev_attr_in1_min.dev_attr.attr,
+       &sensor_dev_attr_in1_max.dev_attr.attr,
+       &sensor_dev_attr_in1_alarm.dev_attr.attr,
+       &sensor_dev_attr_in2_input.dev_attr.attr,
+       &sensor_dev_attr_in2_min.dev_attr.attr,
+       &sensor_dev_attr_in2_max.dev_attr.attr,
+       &sensor_dev_attr_in2_alarm.dev_attr.attr,
+       &sensor_dev_attr_in3_input.dev_attr.attr,
+       &sensor_dev_attr_in3_min.dev_attr.attr,
+       &sensor_dev_attr_in3_max.dev_attr.attr,
+       &sensor_dev_attr_in3_alarm.dev_attr.attr,
+
+       &sensor_dev_attr_fan1_input.dev_attr.attr,
+       &sensor_dev_attr_fan1_min.dev_attr.attr,
+       &sensor_dev_attr_fan1_div.dev_attr.attr,
+       &sensor_dev_attr_fan1_alarm.dev_attr.attr,
+       &sensor_dev_attr_fan2_input.dev_attr.attr,
+       &sensor_dev_attr_fan2_min.dev_attr.attr,
+       &sensor_dev_attr_fan2_div.dev_attr.attr,
+       &sensor_dev_attr_fan2_alarm.dev_attr.attr,
 
        &dev_attr_alarms.attr,
        &dev_attr_name.attr,
@@ -502,19 +496,28 @@ static const struct attribute_group sis5595_group = {
        .attrs = sis5595_attributes,
 };
 
-static struct attribute *sis5595_attributes_opt[] = {
-       &dev_attr_in4_input.attr,
-       &dev_attr_in4_min.attr,
-       &dev_attr_in4_max.attr,
+static struct attribute *sis5595_attributes_in4[] = {
+       &sensor_dev_attr_in4_input.dev_attr.attr,
+       &sensor_dev_attr_in4_min.dev_attr.attr,
+       &sensor_dev_attr_in4_max.dev_attr.attr,
+       &sensor_dev_attr_in4_alarm.dev_attr.attr,
+       NULL
+};
 
+static const struct attribute_group sis5595_group_in4 = {
+       .attrs = sis5595_attributes_in4,
+};
+
+static struct attribute *sis5595_attributes_temp1[] = {
        &dev_attr_temp1_input.attr,
        &dev_attr_temp1_max.attr,
        &dev_attr_temp1_max_hyst.attr,
+       &sensor_dev_attr_temp1_alarm.dev_attr.attr,
        NULL
 };
 
-static const struct attribute_group sis5595_group_opt = {
-       .attrs = sis5595_attributes_opt,
+static const struct attribute_group sis5595_group_temp1 = {
+       .attrs = sis5595_attributes_temp1,
 };
  
 /* This is called when the module is loaded */
@@ -546,7 +549,7 @@ static int __devinit sis5595_probe(struct platform_device *pdev)
        platform_set_drvdata(pdev, data);
 
        /* Check revision and pin registers to determine whether 4 or 5 voltages */
-       pci_read_config_byte(s_bridge, SIS5595_REVISION_REG, &(data->revision));
+       data->revision = s_bridge->revision;
        /* 4 voltages, 1 temp */
        data->maxins = 3;
        if (data->revision >= REV2MIN) {
@@ -569,26 +572,18 @@ static int __devinit sis5595_probe(struct platform_device *pdev)
        if ((err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group)))
                goto exit_free;
        if (data->maxins == 4) {
-               if ((err = device_create_file(&pdev->dev,
-                                             &dev_attr_in4_input))
-                || (err = device_create_file(&pdev->dev,
-                                             &dev_attr_in4_min))
-                || (err = device_create_file(&pdev->dev,
-                                             &dev_attr_in4_max)))
+               if ((err = sysfs_create_group(&pdev->dev.kobj,
+                                             &sis5595_group_in4)))
                        goto exit_remove_files;
        } else {
-               if ((err = device_create_file(&pdev->dev,
-                                             &dev_attr_temp1_input))
-                || (err = device_create_file(&pdev->dev,
-                                             &dev_attr_temp1_max))
-                || (err = device_create_file(&pdev->dev,
-                                             &dev_attr_temp1_max_hyst)))
+               if ((err = sysfs_create_group(&pdev->dev.kobj,
+                                             &sis5595_group_temp1)))
                        goto exit_remove_files;
        }
 
-       data->class_dev = hwmon_device_register(&pdev->dev);
-       if (IS_ERR(data->class_dev)) {
-               err = PTR_ERR(data->class_dev);
+       data->hwmon_dev = hwmon_device_register(&pdev->dev);
+       if (IS_ERR(data->hwmon_dev)) {
+               err = PTR_ERR(data->hwmon_dev);
                goto exit_remove_files;
        }
 
@@ -596,7 +591,8 @@ static int __devinit sis5595_probe(struct platform_device *pdev)
 
 exit_remove_files:
        sysfs_remove_group(&pdev->dev.kobj, &sis5595_group);
-       sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_opt);
+       sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_in4);
+       sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_temp1);
 exit_free:
        kfree(data);
 exit_release:
@@ -609,9 +605,10 @@ static int __devexit sis5595_remove(struct platform_device *pdev)
 {
        struct sis5595_data *data = platform_get_drvdata(pdev);
 
-       hwmon_device_unregister(data->class_dev);
+       hwmon_device_unregister(data->hwmon_dev);
        sysfs_remove_group(&pdev->dev.kobj, &sis5595_group);
-       sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_opt);
+       sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_in4);
+       sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_temp1);
 
        release_region(data->addr, SIS5595_EXTENT);
        platform_set_drvdata(pdev, NULL);
@@ -700,7 +697,7 @@ static struct sis5595_data *sis5595_update_device(struct device *dev)
        return data;
 }
 
-static struct pci_device_id sis5595_pci_ids[] = {
+static const struct pci_device_id sis5595_pci_ids[] = {
        { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) },
        { 0, }
 };
@@ -731,6 +728,10 @@ static int __devinit sis5595_device_add(unsigned short address)
        };
        int err;
 
+       err = acpi_check_resource_conflict(&res);
+       if (err)
+               goto exit;
+
        pdev = platform_device_alloc("sis5595", address);
        if (!pdev) {
                err = -ENOMEM;
@@ -768,11 +769,10 @@ static int __devinit sis5595_pci_probe(struct pci_dev *dev,
        int *i;
 
        for (i = blacklist; *i != 0; i++) {
-               struct pci_dev *dev;
-               dev = pci_get_device(PCI_VENDOR_ID_SI, *i, NULL);
-               if (dev) {
-                       dev_err(&dev->dev, "Looked for SIS5595 but found unsupported device %.4x\n", *i);
-                       pci_dev_put(dev);
+               struct pci_dev *d;
+               if ((d = pci_get_device(PCI_VENDOR_ID_SI, *i, NULL))) {
+                       dev_err(&d->dev, "Looked for SIS5595 but found unsupported device %.4x\n", *i);
+                       pci_dev_put(d);
                        return -ENODEV;
                }
        }