hwmon: (w83793) Add watchdog functionality
[safe/jmp/linux-2.6] / drivers / hwmon / f71805f.c
index 2fc5378..525a00b 100644 (file)
@@ -10,6 +10,9 @@
  * The F71872F/FG is almost the same, with two more voltages monitored,
  * and 6 VID inputs.
  *
+ * The F71806F/FG is essentially the same as the F71872F/FG. It even has
+ * the same chip ID, so the driver can't differentiate between.
+ *
  * 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
  * the Free Software Foundation; either version 2 of the License, or
 #include <linux/err.h>
 #include <linux/mutex.h>
 #include <linux/sysfs.h>
-#include <asm/io.h>
+#include <linux/ioport.h>
+#include <linux/acpi.h>
+#include <linux/io.h>
+
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
 
 static struct platform_device *pdev;
 
@@ -126,6 +135,13 @@ superio_exit(int base)
 #define F71805F_REG_TEMP_HIGH(nr)      (0x54 + 2 * (nr))
 #define F71805F_REG_TEMP_HYST(nr)      (0x55 + 2 * (nr))
 #define F71805F_REG_TEMP_MODE          0x01
+/* pwm/fan pwmnr from 0 to 2, auto point apnr from 0 to 2 */
+/* map Fintek numbers to our numbers as follows: 9->0, 5->1, 1->2 */
+#define F71805F_REG_PWM_AUTO_POINT_TEMP(pwmnr, apnr) \
+                                       (0xA0 + 0x10 * (pwmnr) + (2 - (apnr)))
+#define F71805F_REG_PWM_AUTO_POINT_FAN(pwmnr, apnr) \
+                                       (0xA4 + 0x10 * (pwmnr) + \
+                                               2 * (2 - (apnr)))
 
 #define F71805F_REG_START              0x00
 /* status nr from 0 to 2 */
@@ -143,10 +159,15 @@ superio_exit(int base)
  * Data structures and manipulation thereof
  */
 
+struct f71805f_auto_point {
+       u8 temp[3];
+       u16 fan[3];
+};
+
 struct f71805f_data {
        unsigned short addr;
        const char *name;
-       struct class_device *class_dev;
+       struct device *hwmon_dev;
 
        struct mutex update_lock;
        char valid;             /* !=0 if following fields are valid */
@@ -169,6 +190,7 @@ struct f71805f_data {
        u8 temp_hyst[3];
        u8 temp_mode;
        unsigned long alarms;
+       struct f71805f_auto_point auto_points[3];
 };
 
 struct f71805f_sio_data {
@@ -311,7 +333,7 @@ static void f71805f_write16(struct f71805f_data *data, u8 reg, u16 val)
 static struct f71805f_data *f71805f_update_device(struct device *dev)
 {
        struct f71805f_data *data = dev_get_drvdata(dev);
-       int nr;
+       int nr, apnr;
 
        mutex_lock(&data->update_lock);
 
@@ -341,6 +363,18 @@ static struct f71805f_data *f71805f_update_device(struct device *dev)
                                              F71805F_REG_TEMP_HYST(nr));
                }
                data->temp_mode = f71805f_read8(data, F71805F_REG_TEMP_MODE);
+               for (nr = 0; nr < 3; nr++) {
+                       for (apnr = 0; apnr < 3; apnr++) {
+                               data->auto_points[nr].temp[apnr] =
+                                       f71805f_read8(data,
+                                       F71805F_REG_PWM_AUTO_POINT_TEMP(nr,
+                                                                       apnr));
+                               data->auto_points[nr].fan[apnr] =
+                                       f71805f_read16(data,
+                                       F71805F_REG_PWM_AUTO_POINT_FAN(nr,
+                                                                      apnr));
+                       }
+               }
 
                data->last_limits = jiffies;
        }
@@ -704,6 +738,70 @@ static ssize_t set_pwm_freq(struct device *dev, struct device_attribute
        return count;
 }
 
+static ssize_t show_pwm_auto_point_temp(struct device *dev,
+                                       struct device_attribute *devattr,
+                                       char* buf)
+{
+       struct f71805f_data *data = dev_get_drvdata(dev);
+       struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+       int pwmnr = attr->nr;
+       int apnr = attr->index;
+
+       return sprintf(buf, "%ld\n",
+                      temp_from_reg(data->auto_points[pwmnr].temp[apnr]));
+}
+
+static ssize_t set_pwm_auto_point_temp(struct device *dev,
+                                      struct device_attribute *devattr,
+                                      const char* buf, size_t count)
+{
+       struct f71805f_data *data = dev_get_drvdata(dev);
+       struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+       int pwmnr = attr->nr;
+       int apnr = attr->index;
+       unsigned long val = simple_strtol(buf, NULL, 10);
+
+       mutex_lock(&data->update_lock);
+       data->auto_points[pwmnr].temp[apnr] = temp_to_reg(val);
+       f71805f_write8(data, F71805F_REG_PWM_AUTO_POINT_TEMP(pwmnr, apnr),
+                      data->auto_points[pwmnr].temp[apnr]);
+       mutex_unlock(&data->update_lock);
+
+       return count;
+}
+
+static ssize_t show_pwm_auto_point_fan(struct device *dev,
+                                      struct device_attribute *devattr,
+                                      char* buf)
+{
+       struct f71805f_data *data = dev_get_drvdata(dev);
+       struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+       int pwmnr = attr->nr;
+       int apnr = attr->index;
+
+       return sprintf(buf, "%ld\n",
+                      fan_from_reg(data->auto_points[pwmnr].fan[apnr]));
+}
+
+static ssize_t set_pwm_auto_point_fan(struct device *dev,
+                                     struct device_attribute *devattr,
+                                     const char* buf, size_t count)
+{
+       struct f71805f_data *data = dev_get_drvdata(dev);
+       struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+       int pwmnr = attr->nr;
+       int apnr = attr->index;
+       unsigned long val = simple_strtoul(buf, NULL, 10);
+
+       mutex_lock(&data->update_lock);
+       data->auto_points[pwmnr].fan[apnr] = fan_to_reg(val);
+       f71805f_write16(data, F71805F_REG_PWM_AUTO_POINT_FAN(pwmnr, apnr),
+                       data->auto_points[pwmnr].fan[apnr]);
+       mutex_unlock(&data->update_lock);
+
+       return count;
+}
+
 static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
                         char *buf)
 {
@@ -931,6 +1029,63 @@ static SENSOR_DEVICE_ATTR(pwm3_freq, S_IRUGO | S_IWUSR,
                          show_pwm_freq, set_pwm_freq, 2);
 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IRUGO, show_pwm_mode, NULL, 2);
 
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+                           0, 0);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_fan, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+                           0, 0);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_temp, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+                           0, 1);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_fan, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+                           0, 1);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_temp, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+                           0, 2);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_fan, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+                           0, 2);
+
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+                           1, 0);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_fan, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+                           1, 0);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_temp, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+                           1, 1);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_fan, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+                           1, 1);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_temp, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+                           1, 2);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_fan, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+                           1, 2);
+
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+                           2, 0);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_fan, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+                           2, 0);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_temp, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+                           2, 1);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_fan, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+                           2, 1);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_temp, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+                           2, 2);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_fan, S_IRUGO | S_IWUSR,
+                           show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+                           2, 2);
+
 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);
@@ -1013,6 +1168,25 @@ static struct attribute *f71805f_attributes[] = {
        &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
        &sensor_dev_attr_temp3_type.dev_attr.attr,
 
+       &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
+       &sensor_dev_attr_pwm1_auto_point1_fan.dev_attr.attr,
+       &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
+       &sensor_dev_attr_pwm1_auto_point2_fan.dev_attr.attr,
+       &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
+       &sensor_dev_attr_pwm1_auto_point3_fan.dev_attr.attr,
+       &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
+       &sensor_dev_attr_pwm2_auto_point1_fan.dev_attr.attr,
+       &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
+       &sensor_dev_attr_pwm2_auto_point2_fan.dev_attr.attr,
+       &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
+       &sensor_dev_attr_pwm2_auto_point3_fan.dev_attr.attr,
+       &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
+       &sensor_dev_attr_pwm3_auto_point1_fan.dev_attr.attr,
+       &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
+       &sensor_dev_attr_pwm3_auto_point2_fan.dev_attr.attr,
+       &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
+       &sensor_dev_attr_pwm3_auto_point3_fan.dev_attr.attr,
+
        &sensor_dev_attr_in0_alarm.dev_attr.attr,
        &sensor_dev_attr_in1_alarm.dev_attr.attr,
        &sensor_dev_attr_in2_alarm.dev_attr.attr,
@@ -1140,6 +1314,13 @@ static int __devinit f71805f_probe(struct platform_device *pdev)
        }
 
        res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+       if (!request_region(res->start + ADDR_REG_OFFSET, 2, DRVNAME)) {
+               err = -EBUSY;
+               dev_err(&pdev->dev, "Failed to request region 0x%lx-0x%lx\n",
+                       (unsigned long)(res->start + ADDR_REG_OFFSET),
+                       (unsigned long)(res->start + ADDR_REG_OFFSET + 1));
+               goto exit_free;
+       }
        data->addr = res->start;
        data->name = names[sio_data->kind];
        mutex_init(&data->update_lock);
@@ -1165,7 +1346,7 @@ static int __devinit f71805f_probe(struct platform_device *pdev)
 
        /* Register sysfs interface files */
        if ((err = sysfs_create_group(&pdev->dev.kobj, &f71805f_group)))
-               goto exit_free;
+               goto exit_release_region;
        if (data->has_in & (1 << 4)) { /* in4 */
                if ((err = sysfs_create_group(&pdev->dev.kobj,
                                              &f71805f_group_optin[0])))
@@ -1205,9 +1386,9 @@ static int __devinit f71805f_probe(struct platform_device *pdev)
                }
        }
 
-       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);
                dev_err(&pdev->dev, "Class registration failed (%d)\n", err);
                goto exit_remove_files;
        }
@@ -1219,6 +1400,8 @@ exit_remove_files:
        for (i = 0; i < 4; i++)
                sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_optin[i]);
        sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_pwm_freq);
+exit_release_region:
+       release_region(res->start + ADDR_REG_OFFSET, 2);
 exit_free:
        platform_set_drvdata(pdev, NULL);
        kfree(data);
@@ -1229,16 +1412,20 @@ exit:
 static int __devexit f71805f_remove(struct platform_device *pdev)
 {
        struct f71805f_data *data = platform_get_drvdata(pdev);
+       struct resource *res;
        int i;
 
-       platform_set_drvdata(pdev, NULL);
-       hwmon_device_unregister(data->class_dev);
+       hwmon_device_unregister(data->hwmon_dev);
        sysfs_remove_group(&pdev->dev.kobj, &f71805f_group);
        for (i = 0; i < 4; i++)
                sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_optin[i]);
        sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_pwm_freq);
+       platform_set_drvdata(pdev, NULL);
        kfree(data);
 
+       res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+       release_region(res->start + ADDR_REG_OFFSET, 2);
+
        return 0;
 }
 
@@ -1269,6 +1456,10 @@ static int __init f71805f_device_add(unsigned short address,
        }
 
        res.name = pdev->name;
+       err = acpi_check_resource_conflict(&res);
+       if (err)
+               goto exit_device_put;
+
        err = platform_device_add_resources(pdev, &res, 1);
        if (err) {
                printk(KERN_ERR DRVNAME ": Device resource addition failed "
@@ -1276,28 +1467,22 @@ static int __init f71805f_device_add(unsigned short address,
                goto exit_device_put;
        }
 
-       pdev->dev.platform_data = kmalloc(sizeof(struct f71805f_sio_data),
-                                         GFP_KERNEL);
-       if (!pdev->dev.platform_data) {
-               err = -ENOMEM;
+       err = platform_device_add_data(pdev, sio_data,
+                                      sizeof(struct f71805f_sio_data));
+       if (err) {
                printk(KERN_ERR DRVNAME ": Platform data allocation failed\n");
                goto exit_device_put;
        }
-       memcpy(pdev->dev.platform_data, sio_data,
-              sizeof(struct f71805f_sio_data));
 
        err = platform_device_add(pdev);
        if (err) {
                printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
                       err);
-               goto exit_kfree_data;
+               goto exit_device_put;
        }
 
        return 0;
 
-exit_kfree_data:
-       kfree(pdev->dev.platform_data);
-       pdev->dev.platform_data = NULL;
 exit_device_put:
        platform_device_put(pdev);
 exit:
@@ -1312,7 +1497,7 @@ static int __init f71805f_find(int sioaddr, unsigned short *address,
 
        static const char *names[] = {
                "F71805F/FG",
-               "F71872F/FG",
+               "F71872F/FG or F71806F/FG",
        };
 
        superio_enter(sioaddr);
@@ -1321,7 +1506,7 @@ static int __init f71805f_find(int sioaddr, unsigned short *address,
        if (devid != SIO_FINTEK_ID)
                goto exit;
 
-       devid = superio_inw(sioaddr, SIO_REG_DEVID);
+       devid = force_id ? force_id : superio_inw(sioaddr, SIO_REG_DEVID);
        switch (devid) {
        case SIO_F71805F_ID:
                sio_data->kind = f71805f;
@@ -1390,10 +1575,7 @@ exit:
 
 static void __exit f71805f_exit(void)
 {
-       kfree(pdev->dev.platform_data);
-       pdev->dev.platform_data = NULL;
        platform_device_unregister(pdev);
-
        platform_driver_unregister(&f71805f_driver);
 }