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-rw-r--r--drivers/hwmon/sis5595.c305
1 files changed, 188 insertions, 117 deletions
diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c
index 3324245..6c4d8eb 100644
--- a/drivers/hwmon/sis5595.c
+++ b/drivers/hwmon/sis5595.c
@@ -1,54 +1,54 @@
/*
- sis5595.c - Part of lm_sensors, Linux kernel modules
- for hardware monitoring
-
- Copyright (C) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>,
- 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>
-
- 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
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
+ * sis5595.c - Part of lm_sensors, Linux kernel modules
+ * for hardware monitoring
+ *
+ * Copyright (C) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>,
+ * 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>
+ *
+ * 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
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
/*
- SiS southbridge has a LM78-like chip integrated on the same IC.
- This driver is a customized copy of lm78.c
-
- Supports following revisions:
- Version PCI ID PCI Revision
- 1 1039/0008 AF or less
- 2 1039/0008 B0 or greater
-
- Note: these chips contain a 0008 device which is incompatible with the
- 5595. We recognize these by the presence of the listed
- "blacklist" PCI ID and refuse to load.
-
- NOT SUPPORTED PCI ID BLACKLIST PCI ID
- 540 0008 0540
- 550 0008 0550
- 5513 0008 5511
- 5581 0008 5597
- 5582 0008 5597
- 5597 0008 5597
- 5598 0008 5597/5598
- 630 0008 0630
- 645 0008 0645
- 730 0008 0730
- 735 0008 0735
-*/
+ * SiS southbridge has a LM78-like chip integrated on the same IC.
+ * This driver is a customized copy of lm78.c
+ *
+ * Supports following revisions:
+ * Version PCI ID PCI Revision
+ * 1 1039/0008 AF or less
+ * 2 1039/0008 B0 or greater
+ *
+ * Note: these chips contain a 0008 device which is incompatible with the
+ * 5595. We recognize these by the presence of the listed
+ * "blacklist" PCI ID and refuse to load.
+ *
+ * NOT SUPPORTED PCI ID BLACKLIST PCI ID
+ * 540 0008 0540
+ * 550 0008 0550
+ * 5513 0008 5511
+ * 5581 0008 5597
+ * 5582 0008 5597
+ * 5597 0008 5597
+ * 5598 0008 5597/5598
+ * 630 0008 0630
+ * 645 0008 0645
+ * 730 0008 0730
+ * 735 0008 0735
+ */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -68,8 +68,10 @@
#include <linux/io.h>
-/* If force_addr is set to anything different from 0, we forcibly enable
- the device at the given address. */
+/*
+ * If force_addr is set to anything different from 0, we forcibly enable
+ * the device at the given address.
+ */
static u16 force_addr;
module_param(force_addr, ushort, 0);
MODULE_PARM_DESC(force_addr,
@@ -98,30 +100,36 @@ static struct platform_device *pdev;
#define SIS5595_REG_FAN_MIN(nr) (0x3b + (nr))
#define SIS5595_REG_FAN(nr) (0x28 + (nr))
-/* On the first version of the chip, the temp registers are separate.
- On the second version,
- TEMP pin is shared with IN4, configured in PCI register 0x7A.
- The registers are the same as well.
- OVER and HYST are really MAX and MIN. */
+/*
+ * On the first version of the chip, the temp registers are separate.
+ * On the second version,
+ * TEMP pin is shared with IN4, configured in PCI register 0x7A.
+ * The registers are the same as well.
+ * OVER and HYST are really MAX and MIN.
+ */
#define REV2MIN 0xb0
-#define SIS5595_REG_TEMP (( data->revision) >= REV2MIN) ? \
- SIS5595_REG_IN(4) : 0x27
-#define SIS5595_REG_TEMP_OVER (( data->revision) >= REV2MIN) ? \
- SIS5595_REG_IN_MAX(4) : 0x39
-#define SIS5595_REG_TEMP_HYST (( data->revision) >= REV2MIN) ? \
- SIS5595_REG_IN_MIN(4) : 0x3a
+#define SIS5595_REG_TEMP (((data->revision) >= REV2MIN) ? \
+ SIS5595_REG_IN(4) : 0x27)
+#define SIS5595_REG_TEMP_OVER (((data->revision) >= REV2MIN) ? \
+ SIS5595_REG_IN_MAX(4) : 0x39)
+#define SIS5595_REG_TEMP_HYST (((data->revision) >= REV2MIN) ? \
+ SIS5595_REG_IN_MIN(4) : 0x3a)
#define SIS5595_REG_CONFIG 0x40
#define SIS5595_REG_ALARM1 0x41
#define SIS5595_REG_ALARM2 0x42
#define SIS5595_REG_FANDIV 0x47
-/* Conversions. Limit checking is only done on the TO_REG
- variants. */
+/*
+ * Conversions. Limit checking is only done on the TO_REG
+ * variants.
+ */
-/* IN: mV, (0V to 4.08V)
- REG: 16mV/bit */
+/*
+ * IN: mV, (0V to 4.08V)
+ * REG: 16mV/bit
+ */
static inline u8 IN_TO_REG(unsigned long val)
{
unsigned long nval = SENSORS_LIMIT(val, 0, 4080);
@@ -138,11 +146,13 @@ static inline u8 FAN_TO_REG(long rpm, int div)
static inline int FAN_FROM_REG(u8 val, int div)
{
- return val==0 ? -1 : val==255 ? 0 : 1350000/(val*div);
+ return val == 0 ? -1 : val == 255 ? 0 : 1350000 / (val * div);
}
-/* TEMP: mC (-54.12C to +157.53C)
- REG: 0.83C/bit + 52.12, two's complement */
+/*
+ * TEMP: mC (-54.12C to +157.53C)
+ * REG: 0.83C/bit + 52.12, two's complement
+ */
static inline int TEMP_FROM_REG(s8 val)
{
return val * 830 + 52120;
@@ -150,19 +160,23 @@ static inline int TEMP_FROM_REG(s8 val)
static inline s8 TEMP_TO_REG(int val)
{
int nval = SENSORS_LIMIT(val, -54120, 157530) ;
- return nval<0 ? (nval-5212-415)/830 : (nval-5212+415)/830;
+ return nval < 0 ? (nval - 5212 - 415) / 830 : (nval - 5212 + 415) / 830;
}
-/* FAN DIV: 1, 2, 4, or 8 (defaults to 2)
- REG: 0, 1, 2, or 3 (respectively) (defaults to 1) */
+/*
+ * FAN DIV: 1, 2, 4, or 8 (defaults to 2)
+ * REG: 0, 1, 2, or 3 (respectively) (defaults to 1)
+ */
static inline u8 DIV_TO_REG(int val)
{
- return val==8 ? 3 : val==4 ? 2 : val==1 ? 0 : 1;
+ return val == 8 ? 3 : val == 4 ? 2 : val == 1 ? 0 : 1;
}
#define DIV_FROM_REG(val) (1 << (val))
-/* For each registered chip, we need to keep some data in memory.
- The structure is dynamically allocated. */
+/*
+ * For each registered chip, we need to keep some data in memory.
+ * The structure is dynamically allocated.
+ */
struct sis5595_data {
unsigned short addr;
const char *name;
@@ -240,7 +254,12 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *da,
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);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->in_min[nr] = IN_TO_REG(val);
@@ -255,7 +274,12 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *da,
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);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->in_max[nr] = IN_TO_REG(val);
@@ -279,22 +303,30 @@ show_in_offset(3);
show_in_offset(4);
/* Temperature */
-static ssize_t show_temp(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct sis5595_data *data = sis5595_update_device(dev);
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp));
}
-static ssize_t show_temp_over(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_temp_over(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct sis5595_data *data = sis5595_update_device(dev);
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_over));
}
-static ssize_t set_temp_over(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t set_temp_over(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct sis5595_data *data = dev_get_drvdata(dev);
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->temp_over = TEMP_TO_REG(val);
@@ -303,16 +335,23 @@ static ssize_t set_temp_over(struct device *dev, struct device_attribute *attr,
return count;
}
-static ssize_t show_temp_hyst(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_temp_hyst(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct sis5595_data *data = sis5595_update_device(dev);
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_hyst));
}
-static ssize_t set_temp_hyst(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t set_temp_hyst(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct sis5595_data *data = dev_get_drvdata(dev);
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->temp_hyst = TEMP_TO_REG(val);
@@ -335,7 +374,7 @@ static ssize_t show_fan(struct device *dev, struct device_attribute *da,
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])) );
+ DIV_FROM_REG(data->fan_div[nr])));
}
static ssize_t show_fan_min(struct device *dev, struct device_attribute *da,
@@ -344,8 +383,8 @@ static ssize_t show_fan_min(struct device *dev, struct device_attribute *da,
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])) );
+ 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, struct device_attribute *da,
@@ -354,7 +393,12 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *da,
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);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
@@ -369,13 +413,15 @@ static ssize_t show_fan_div(struct device *dev, struct device_attribute *da,
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]) );
+ return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
}
-/* Note: we save and restore the fan minimum here, because its value is
- 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. */
+/*
+ * Note: we save and restore the fan minimum here, because its value is
+ * 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, struct device_attribute *da,
const char *buf, size_t count)
{
@@ -383,8 +429,13 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *da,
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;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
min = FAN_FROM_REG(data->fan_min[nr],
@@ -392,17 +443,25 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *da,
reg = sis5595_read_value(data, SIS5595_REG_FANDIV);
switch (val) {
- case 1: data->fan_div[nr] = 0; break;
- case 2: data->fan_div[nr] = 1; break;
- case 4: data->fan_div[nr] = 2; break;
- case 8: data->fan_div[nr] = 3; break;
+ case 1:
+ data->fan_div[nr] = 0;
+ break;
+ case 2:
+ data->fan_div[nr] = 1;
+ break;
+ case 4:
+ data->fan_div[nr] = 2;
+ break;
+ case 8:
+ data->fan_div[nr] = 3;
+ break;
default:
dev_err(dev, "fan_div value %ld not "
"supported. Choose one of 1, 2, 4 or 8!\n", val);
mutex_unlock(&data->update_lock);
return -EINVAL;
}
-
+
switch (nr) {
case 0:
reg = (reg & 0xcf) | (data->fan_div[nr] << 4);
@@ -431,7 +490,8 @@ show_fan_offset(1);
show_fan_offset(2);
/* Alarms */
-static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct sis5595_data *data = sis5595_update_device(dev);
return sprintf(buf, "%d\n", data->alarms);
@@ -521,7 +581,7 @@ static struct attribute *sis5595_attributes_temp1[] = {
static const struct attribute_group sis5595_group_temp1 = {
.attrs = sis5595_attributes_temp1,
};
-
+
/* This is called when the module is loaded */
static int __devinit sis5595_probe(struct platform_device *pdev)
{
@@ -539,7 +599,8 @@ static int __devinit sis5595_probe(struct platform_device *pdev)
goto exit;
}
- if (!(data = kzalloc(sizeof(struct sis5595_data), GFP_KERNEL))) {
+ data = kzalloc(sizeof(struct sis5595_data), GFP_KERNEL);
+ if (!data) {
err = -ENOMEM;
goto exit_release;
}
@@ -550,7 +611,9 @@ static int __devinit sis5595_probe(struct platform_device *pdev)
data->name = "sis5595";
platform_set_drvdata(pdev, data);
- /* Check revision and pin registers to determine whether 4 or 5 voltages */
+ /*
+ * Check revision and pin registers to determine whether 4 or 5 voltages
+ */
data->revision = s_bridge->revision;
/* 4 voltages, 1 temp */
data->maxins = 3;
@@ -560,7 +623,7 @@ static int __devinit sis5595_probe(struct platform_device *pdev)
/* 5 voltages, no temps */
data->maxins = 4;
}
-
+
/* Initialize the SIS5595 chip */
sis5595_init_device(data);
@@ -571,15 +634,16 @@ static int __devinit sis5595_probe(struct platform_device *pdev)
}
/* Register sysfs hooks */
- if ((err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group)))
+ err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group);
+ if (err)
goto exit_free;
if (data->maxins == 4) {
- if ((err = sysfs_create_group(&pdev->dev.kobj,
- &sis5595_group_in4)))
+ err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group_in4);
+ if (err)
goto exit_remove_files;
} else {
- if ((err = sysfs_create_group(&pdev->dev.kobj,
- &sis5595_group_temp1)))
+ err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group_temp1);
+ if (err)
goto exit_remove_files;
}
@@ -713,9 +777,11 @@ static int blacklist[] __devinitdata = {
PCI_DEVICE_ID_SI_645,
PCI_DEVICE_ID_SI_730,
PCI_DEVICE_ID_SI_735,
- PCI_DEVICE_ID_SI_5511, /* 5513 chip has the 0008 device but
- that ID shows up in other chips so we
- use the 5511 ID for recognition */
+ PCI_DEVICE_ID_SI_5511, /*
+ * 5513 chip has the 0008 device but
+ * that ID shows up in other chips so we
+ * use the 5511 ID for recognition
+ */
PCI_DEVICE_ID_SI_5597,
PCI_DEVICE_ID_SI_5598,
0 };
@@ -770,13 +836,16 @@ static int __devinit sis5595_pci_probe(struct pci_dev *dev,
for (i = blacklist; *i != 0; i++) {
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);
+ d = pci_get_device(PCI_VENDOR_ID_SI, *i, NULL);
+ if (d) {
+ dev_err(&d->dev,
+ "Looked for SIS5595 but found unsupported device %.4x\n",
+ *i);
pci_dev_put(d);
return -ENODEV;
}
}
-
+
force_addr &= ~(SIS5595_EXTENT - 1);
if (force_addr) {
dev_warn(&dev->dev, "Forcing ISA address 0x%x\n", force_addr);
@@ -788,10 +857,11 @@ static int __devinit sis5595_pci_probe(struct pci_dev *dev,
dev_err(&dev->dev, "Failed to read ISA address\n");
return -ENODEV;
}
-
+
address &= ~(SIS5595_EXTENT - 1);
if (!address) {
- dev_err(&dev->dev, "Base address not set - upgrade BIOS or use force_addr=0xaddr\n");
+ dev_err(&dev->dev,
+ "Base address not set - upgrade BIOS or use force_addr=0xaddr\n");
return -ENODEV;
}
if (force_addr && address != force_addr) {
@@ -828,7 +898,8 @@ static int __devinit sis5595_pci_probe(struct pci_dev *dev,
if (sis5595_device_add(address))
goto exit_unregister;
- /* Always return failure here. This is to allow other drivers to bind
+ /*
+ * Always return failure here. This is to allow other drivers to bind
* to this pci device. We don't really want to have control over the
* pci device, we only wanted to read as few register values from it.
*/
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