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Diffstat (limited to 'drivers/hwmon/dme1737.c')
-rw-r--r--drivers/hwmon/dme1737.c201
1 files changed, 132 insertions, 69 deletions
diff --git a/drivers/hwmon/dme1737.c b/drivers/hwmon/dme1737.c
index 980c17d5eeae..d9c592713919 100644
--- a/drivers/hwmon/dme1737.c
+++ b/drivers/hwmon/dme1737.c
@@ -25,6 +25,8 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
@@ -75,12 +77,14 @@ enum chips { dme1737, sch5027, sch311x, sch5127 };
* in4 +12V
* in5 VTR (+3.3V stby)
* in6 Vbat
+ * in7 Vtrip (sch5127 only)
*
* --------------------------------------------------------------------- */
-/* Voltages (in) numbered 0-6 (ix) */
-#define DME1737_REG_IN(ix) ((ix) < 5 ? 0x20 + (ix) \
- : 0x94 + (ix))
+/* Voltages (in) numbered 0-7 (ix) */
+#define DME1737_REG_IN(ix) ((ix) < 5 ? 0x20 + (ix) : \
+ (ix) < 7 ? 0x94 + (ix) : \
+ 0x1f)
#define DME1737_REG_IN_MIN(ix) ((ix) < 5 ? 0x44 + (ix) * 2 \
: 0x91 + (ix) * 2)
#define DME1737_REG_IN_MAX(ix) ((ix) < 5 ? 0x45 + (ix) * 2 \
@@ -99,10 +103,11 @@ enum chips { dme1737, sch5027, sch311x, sch5127 };
* IN_TEMP_LSB(1) = [temp3, temp1]
* IN_TEMP_LSB(2) = [in4, temp2]
* IN_TEMP_LSB(3) = [in3, in0]
- * IN_TEMP_LSB(4) = [in2, in1] */
+ * IN_TEMP_LSB(4) = [in2, in1]
+ * IN_TEMP_LSB(5) = [res, in7] */
#define DME1737_REG_IN_TEMP_LSB(ix) (0x84 + (ix))
-static const u8 DME1737_REG_IN_LSB[] = {3, 4, 4, 3, 2, 0, 0};
-static const u8 DME1737_REG_IN_LSB_SHL[] = {4, 4, 0, 0, 0, 0, 4};
+static const u8 DME1737_REG_IN_LSB[] = {3, 4, 4, 3, 2, 0, 0, 5};
+static const u8 DME1737_REG_IN_LSB_SHL[] = {4, 4, 0, 0, 0, 0, 4, 4};
static const u8 DME1737_REG_TEMP_LSB[] = {1, 2, 1};
static const u8 DME1737_REG_TEMP_LSB_SHL[] = {4, 4, 0};
@@ -143,7 +148,7 @@ static const u8 DME1737_REG_TEMP_LSB_SHL[] = {4, 4, 0};
#define DME1737_REG_ALARM1 0x41
#define DME1737_REG_ALARM2 0x42
#define DME1737_REG_ALARM3 0x83
-static const u8 DME1737_BIT_ALARM_IN[] = {0, 1, 2, 3, 8, 16, 17};
+static const u8 DME1737_BIT_ALARM_IN[] = {0, 1, 2, 3, 8, 16, 17, 18};
static const u8 DME1737_BIT_ALARM_TEMP[] = {4, 5, 6};
static const u8 DME1737_BIT_ALARM_FAN[] = {10, 11, 12, 13, 22, 23};
@@ -188,6 +193,7 @@ static const u8 DME1737_BIT_ALARM_FAN[] = {10, 11, 12, 13, 22, 23};
#define HAS_PWM_MIN (1 << 4) /* bit 4 */
#define HAS_FAN(ix) (1 << ((ix) + 5)) /* bits 5-10 */
#define HAS_PWM(ix) (1 << ((ix) + 11)) /* bits 11-16 */
+#define HAS_IN7 (1 << 17) /* bit 17 */
/* ---------------------------------------------------------------------
* Data structures and manipulation thereof
@@ -211,9 +217,9 @@ struct dme1737_data {
u32 has_features;
/* Register values */
- u16 in[7];
- u8 in_min[7];
- u8 in_max[7];
+ u16 in[8];
+ u8 in_min[8];
+ u8 in_max[8];
s16 temp[3];
s8 temp_min[3];
s8 temp_max[3];
@@ -245,7 +251,7 @@ static const int IN_NOMINAL_SCH311x[] = {2500, 1500, 3300, 5000, 12000, 3300,
static const int IN_NOMINAL_SCH5027[] = {5000, 2250, 3300, 1125, 1125, 3300,
3300};
static const int IN_NOMINAL_SCH5127[] = {2500, 2250, 3300, 1125, 1125, 3300,
- 3300};
+ 3300, 1500};
#define IN_NOMINAL(type) ((type) == sch311x ? IN_NOMINAL_SCH311x : \
(type) == sch5027 ? IN_NOMINAL_SCH5027 : \
(type) == sch5127 ? IN_NOMINAL_SCH5127 : \
@@ -578,7 +584,7 @@ static struct dme1737_data *dme1737_update_device(struct device *dev)
{
struct dme1737_data *data = dev_get_drvdata(dev);
int ix;
- u8 lsb[5];
+ u8 lsb[6];
mutex_lock(&data->update_lock);
@@ -601,6 +607,9 @@ static struct dme1737_data *dme1737_update_device(struct device *dev)
/* Voltage inputs are stored as 16 bit values even
* though they have only 12 bits resolution. This is
* to make it consistent with the temp inputs. */
+ if (ix == 7 && !(data->has_features & HAS_IN7)) {
+ continue;
+ }
data->in[ix] = dme1737_read(data,
DME1737_REG_IN(ix)) << 8;
data->in_min[ix] = dme1737_read(data,
@@ -633,10 +642,16 @@ static struct dme1737_data *dme1737_update_device(struct device *dev)
* which the registers are read (MSB first, then LSB) is
* important! */
for (ix = 0; ix < ARRAY_SIZE(lsb); ix++) {
+ if (ix == 5 && !(data->has_features & HAS_IN7)) {
+ continue;
+ }
lsb[ix] = dme1737_read(data,
DME1737_REG_IN_TEMP_LSB(ix));
}
for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) {
+ if (ix == 7 && !(data->has_features & HAS_IN7)) {
+ continue;
+ }
data->in[ix] |= (lsb[DME1737_REG_IN_LSB[ix]] <<
DME1737_REG_IN_LSB_SHL[ix]) & 0xf0;
}
@@ -760,7 +775,7 @@ static struct dme1737_data *dme1737_update_device(struct device *dev)
/* ---------------------------------------------------------------------
* Voltage sysfs attributes
- * ix = [0-5]
+ * ix = [0-7]
* --------------------------------------------------------------------- */
#define SYS_IN_INPUT 0
@@ -1437,7 +1452,7 @@ static ssize_t show_name(struct device *dev, struct device_attribute *attr,
* Sysfs device attribute defines and structs
* --------------------------------------------------------------------- */
-/* Voltages 0-6 */
+/* Voltages 0-7 */
#define SENSOR_DEVICE_ATTR_IN(ix) \
static SENSOR_DEVICE_ATTR_2(in##ix##_input, S_IRUGO, \
@@ -1456,6 +1471,7 @@ SENSOR_DEVICE_ATTR_IN(3);
SENSOR_DEVICE_ATTR_IN(4);
SENSOR_DEVICE_ATTR_IN(5);
SENSOR_DEVICE_ATTR_IN(6);
+SENSOR_DEVICE_ATTR_IN(7);
/* Temperatures 1-3 */
@@ -1574,7 +1590,7 @@ static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); /* for ISA devices */
* created unconditionally. The attributes that need modification of their
* permissions are created read-only and write permissions are added or removed
* on the fly when required */
-static struct attribute *dme1737_attr[] ={
+static struct attribute *dme1737_attr[] = {
/* Voltages */
&sensor_dev_attr_in0_input.dev_attr.attr,
&sensor_dev_attr_in0_min.dev_attr.attr,
@@ -1679,7 +1695,7 @@ static const struct attribute_group dme1737_zone3_group = {
};
-/* The following struct holds temp zone hysteresis related attributes, which
+/* The following struct holds temp zone hysteresis related attributes, which
* are not available in all chips. The following chips support them:
* DME1737, SCH311x */
static struct attribute *dme1737_zone_hyst_attr[] = {
@@ -1693,6 +1709,21 @@ static const struct attribute_group dme1737_zone_hyst_group = {
.attrs = dme1737_zone_hyst_attr,
};
+/* The following struct holds voltage in7 related attributes, which
+ * are not available in all chips. The following chips support them:
+ * SCH5127 */
+static struct attribute *dme1737_in7_attr[] = {
+ &sensor_dev_attr_in7_input.dev_attr.attr,
+ &sensor_dev_attr_in7_min.dev_attr.attr,
+ &sensor_dev_attr_in7_max.dev_attr.attr,
+ &sensor_dev_attr_in7_alarm.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group dme1737_in7_group = {
+ .attrs = dme1737_in7_attr,
+};
+
/* The following structs hold the PWM attributes, some of which are optional.
* Their creation depends on the chip configuration which is determined during
* module load. */
@@ -1984,6 +2015,9 @@ static void dme1737_remove_files(struct device *dev)
if (data->has_features & HAS_ZONE_HYST) {
sysfs_remove_group(&dev->kobj, &dme1737_zone_hyst_group);
}
+ if (data->has_features & HAS_IN7) {
+ sysfs_remove_group(&dev->kobj, &dme1737_in7_group);
+ }
sysfs_remove_group(&dev->kobj, &dme1737_group);
if (!data->client) {
@@ -1997,43 +2031,58 @@ static int dme1737_create_files(struct device *dev)
int err, ix;
/* Create a name attribute for ISA devices */
- if (!data->client &&
- (err = sysfs_create_file(&dev->kobj, &dev_attr_name.attr))) {
- goto exit;
+ if (!data->client) {
+ err = sysfs_create_file(&dev->kobj, &dev_attr_name.attr);
+ if (err) {
+ goto exit;
+ }
}
/* Create standard sysfs attributes */
- if ((err = sysfs_create_group(&dev->kobj, &dme1737_group))) {
+ err = sysfs_create_group(&dev->kobj, &dme1737_group);
+ if (err) {
goto exit_remove;
}
/* Create chip-dependent sysfs attributes */
- if ((data->has_features & HAS_TEMP_OFFSET) &&
- (err = sysfs_create_group(&dev->kobj,
- &dme1737_temp_offset_group))) {
- goto exit_remove;
+ if (data->has_features & HAS_TEMP_OFFSET) {
+ err = sysfs_create_group(&dev->kobj,
+ &dme1737_temp_offset_group);
+ if (err) {
+ goto exit_remove;
+ }
}
- if ((data->has_features & HAS_VID) &&
- (err = sysfs_create_group(&dev->kobj,
- &dme1737_vid_group))) {
- goto exit_remove;
+ if (data->has_features & HAS_VID) {
+ err = sysfs_create_group(&dev->kobj, &dme1737_vid_group);
+ if (err) {
+ goto exit_remove;
+ }
}
- if ((data->has_features & HAS_ZONE3) &&
- (err = sysfs_create_group(&dev->kobj,
- &dme1737_zone3_group))) {
- goto exit_remove;
+ if (data->has_features & HAS_ZONE3) {
+ err = sysfs_create_group(&dev->kobj, &dme1737_zone3_group);
+ if (err) {
+ goto exit_remove;
+ }
}
- if ((data->has_features & HAS_ZONE_HYST) &&
- (err = sysfs_create_group(&dev->kobj,
- &dme1737_zone_hyst_group))) {
- goto exit_remove;
+ if (data->has_features & HAS_ZONE_HYST) {
+ err = sysfs_create_group(&dev->kobj, &dme1737_zone_hyst_group);
+ if (err) {
+ goto exit_remove;
+ }
+ }
+ if (data->has_features & HAS_IN7) {
+ err = sysfs_create_group(&dev->kobj, &dme1737_in7_group);
+ if (err) {
+ goto exit_remove;
+ }
}
/* Create fan sysfs attributes */
for (ix = 0; ix < ARRAY_SIZE(dme1737_fan_group); ix++) {
if (data->has_features & HAS_FAN(ix)) {
- if ((err = sysfs_create_group(&dev->kobj,
- &dme1737_fan_group[ix]))) {
+ err = sysfs_create_group(&dev->kobj,
+ &dme1737_fan_group[ix]);
+ if (err) {
goto exit_remove;
}
}
@@ -2042,14 +2091,17 @@ static int dme1737_create_files(struct device *dev)
/* Create PWM sysfs attributes */
for (ix = 0; ix < ARRAY_SIZE(dme1737_pwm_group); ix++) {
if (data->has_features & HAS_PWM(ix)) {
- if ((err = sysfs_create_group(&dev->kobj,
- &dme1737_pwm_group[ix]))) {
+ err = sysfs_create_group(&dev->kobj,
+ &dme1737_pwm_group[ix]);
+ if (err) {
goto exit_remove;
}
- if ((data->has_features & HAS_PWM_MIN) && ix < 3 &&
- (err = sysfs_create_file(&dev->kobj,
- dme1737_auto_pwm_min_attr[ix]))) {
- goto exit_remove;
+ if ((data->has_features & HAS_PWM_MIN) && (ix < 3)) {
+ err = sysfs_create_file(&dev->kobj,
+ dme1737_auto_pwm_min_attr[ix]);
+ if (err) {
+ goto exit_remove;
+ }
}
}
}
@@ -2186,7 +2238,7 @@ static int dme1737_init_device(struct device *dev)
data->has_features |= HAS_ZONE3;
break;
case sch5127:
- data->has_features |= HAS_FAN(2) | HAS_PWM(2);
+ data->has_features |= HAS_FAN(2) | HAS_PWM(2) | HAS_IN7;
break;
default:
break;
@@ -2279,8 +2331,9 @@ static int dme1737_i2c_get_features(int sio_cip, struct dme1737_data *data)
dme1737_sio_outb(sio_cip, 0x07, 0x0a);
/* Get the base address of the runtime registers */
- if (!(addr = (dme1737_sio_inb(sio_cip, 0x60) << 8) |
- dme1737_sio_inb(sio_cip, 0x61))) {
+ addr = (dme1737_sio_inb(sio_cip, 0x60) << 8) |
+ dme1737_sio_inb(sio_cip, 0x61);
+ if (!addr) {
err = -ENODEV;
goto exit;
}
@@ -2361,13 +2414,15 @@ static int dme1737_i2c_probe(struct i2c_client *client,
mutex_init(&data->update_lock);
/* Initialize the DME1737 chip */
- if ((err = dme1737_init_device(dev))) {
+ err = dme1737_init_device(dev);
+ if (err) {
dev_err(dev, "Failed to initialize device.\n");
goto exit_kfree;
}
/* Create sysfs files */
- if ((err = dme1737_create_files(dev))) {
+ err = dme1737_create_files(dev);
+ if (err) {
dev_err(dev, "Failed to create sysfs files.\n");
goto exit_kfree;
}
@@ -2444,9 +2499,10 @@ static int __init dme1737_isa_detect(int sio_cip, unsigned short *addr)
dme1737_sio_outb(sio_cip, 0x07, 0x0a);
/* Get the base address of the runtime registers */
- if (!(base_addr = (dme1737_sio_inb(sio_cip, 0x60) << 8) |
- dme1737_sio_inb(sio_cip, 0x61))) {
- printk(KERN_ERR "dme1737: Base address not set.\n");
+ base_addr = (dme1737_sio_inb(sio_cip, 0x60) << 8) |
+ dme1737_sio_inb(sio_cip, 0x61);
+ if (!base_addr) {
+ pr_err("Base address not set\n");
err = -ENODEV;
goto exit;
}
@@ -2474,21 +2530,22 @@ static int __init dme1737_isa_device_add(unsigned short addr)
if (err)
goto exit;
- if (!(pdev = platform_device_alloc("dme1737", addr))) {
- printk(KERN_ERR "dme1737: Failed to allocate device.\n");
+ pdev = platform_device_alloc("dme1737", addr);
+ if (!pdev) {
+ pr_err("Failed to allocate device\n");
err = -ENOMEM;
goto exit;
}
- if ((err = platform_device_add_resources(pdev, &res, 1))) {
- printk(KERN_ERR "dme1737: Failed to add device resource "
- "(err = %d).\n", err);
+ err = platform_device_add_resources(pdev, &res, 1);
+ if (err) {
+ pr_err("Failed to add device resource (err = %d)\n", err);
goto exit_device_put;
}
- if ((err = platform_device_add(pdev))) {
- printk(KERN_ERR "dme1737: Failed to add device (err = %d).\n",
- err);
+ err = platform_device_add(pdev);
+ if (err) {
+ pr_err("Failed to add device (err = %d)\n", err);
goto exit_device_put;
}
@@ -2514,11 +2571,12 @@ static int __devinit dme1737_isa_probe(struct platform_device *pdev)
dev_err(dev, "Failed to request region 0x%04x-0x%04x.\n",
(unsigned short)res->start,
(unsigned short)res->start + DME1737_EXTENT - 1);
- err = -EBUSY;
- goto exit;
- }
+ err = -EBUSY;
+ goto exit;
+ }
- if (!(data = kzalloc(sizeof(struct dme1737_data), GFP_KERNEL))) {
+ data = kzalloc(sizeof(struct dme1737_data), GFP_KERNEL);
+ if (!data) {
err = -ENOMEM;
goto exit_release_region;
}
@@ -2565,13 +2623,15 @@ static int __devinit dme1737_isa_probe(struct platform_device *pdev)
data->type == sch5127 ? "SCH5127" : "SCH311x", data->addr);
/* Initialize the chip */
- if ((err = dme1737_init_device(dev))) {
+ err = dme1737_init_device(dev);
+ if (err) {
dev_err(dev, "Failed to initialize device.\n");
goto exit_kfree;
}
/* Create sysfs files */
- if ((err = dme1737_create_files(dev))) {
+ err = dme1737_create_files(dev);
+ if (err) {
dev_err(dev, "Failed to create sysfs files.\n");
goto exit_kfree;
}
@@ -2628,7 +2688,8 @@ static int __init dme1737_init(void)
int err;
unsigned short addr;
- if ((err = i2c_add_driver(&dme1737_i2c_driver))) {
+ err = i2c_add_driver(&dme1737_i2c_driver);
+ if (err) {
goto exit;
}
@@ -2641,12 +2702,14 @@ static int __init dme1737_init(void)
return 0;
}
- if ((err = platform_driver_register(&dme1737_isa_driver))) {
+ err = platform_driver_register(&dme1737_isa_driver);
+ if (err) {
goto exit_del_i2c_driver;
}
/* Sets global pdev as a side effect */
- if ((err = dme1737_isa_device_add(addr))) {
+ err = dme1737_isa_device_add(addr);
+ if (err) {
goto exit_del_isa_driver;
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-04-26 21:19:42 +0000