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Diffstat (limited to 'drivers/hwmon/adm1026.c')
-rw-r--r--drivers/hwmon/adm1026.c504
1 files changed, 314 insertions, 190 deletions
diff --git a/drivers/hwmon/adm1026.c b/drivers/hwmon/adm1026.c
index 0531867484f4..1003219b9f90 100644
--- a/drivers/hwmon/adm1026.c
+++ b/drivers/hwmon/adm1026.c
@@ -1,27 +1,27 @@
/*
- adm1026.c - Part of lm_sensors, Linux kernel modules for hardware
- monitoring
- Copyright (C) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
- Copyright (C) 2004 Justin Thiessen <jthiessen@penguincomputing.com>
-
- Chip details at:
-
- <http://www.onsemi.com/PowerSolutions/product.do?id=ADM1026>
-
- 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.
-*/
+ * adm1026.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (C) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
+ * Copyright (C) 2004 Justin Thiessen <jthiessen@penguincomputing.com>
+ *
+ * Chip details at:
+ *
+ * <http://www.onsemi.com/PowerSolutions/product.do?id=ADM1026>
+ *
+ * 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.
+ */
#include <linux/module.h>
#include <linux/init.h>
@@ -90,7 +90,8 @@ MODULE_PARM_DESC(gpio_fan, "List of GPIO pins (0-7) to program as fan tachs");
#define E2CFG_ROM 0x08
#define E2CFG_CLK_EXT 0x80
-/* There are 10 general analog inputs and 7 dedicated inputs
+/*
+ * There are 10 general analog inputs and 7 dedicated inputs
* They are:
* 0 - 9 = AIN0 - AIN9
* 10 = Vbat
@@ -117,7 +118,8 @@ static u16 ADM1026_REG_IN_MAX[] = {
0x43, 0x44, 0x45, 0x46, 0x47
};
-/* Temperatures are:
+/*
+ * Temperatures are:
* 0 - Internal
* 1 - External 1
* 2 - External 2
@@ -170,12 +172,14 @@ static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f };
#define ADM1026_FAN_CONTROL_TEMP_RANGE 20
#define ADM1026_PWM_MAX 255
-/* Conversions. Rounding and limit checking is only done on the TO_REG
+/*
+ * Conversions. Rounding and limit checking is only done on the TO_REG
* variants. Note that you should be a bit careful with which arguments
* these macros are called: arguments may be evaluated more than once.
*/
-/* IN are scaled according to built-in resistors. These are the
+/*
+ * IN are scaled according to built-in resistors. These are the
* voltages corresponding to 3/4 of full scale (192 or 0xc0)
* NOTE: The -12V input needs an additional factor to account
* for the Vref pullup resistor.
@@ -197,23 +201,25 @@ static int adm1026_scaling[] = { /* .001 Volts */
0, 255))
#define INS_FROM_REG(n, val) (SCALE(val, 192, adm1026_scaling[n]))
-/* FAN speed is measured using 22.5kHz clock and counts for 2 pulses
+/*
+ * FAN speed is measured using 22.5kHz clock and counts for 2 pulses
* and we assume a 2 pulse-per-rev fan tach signal
* 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000
*/
#define FAN_TO_REG(val, div) ((val) <= 0 ? 0xff : \
- SENSORS_LIMIT(1350000/((val)*(div)), 1, 254))
-#define FAN_FROM_REG(val, div) ((val) == 0 ? -1:(val) == 0xff ? 0 : \
- 1350000/((val)*(div)))
-#define DIV_FROM_REG(val) (1<<(val))
+ SENSORS_LIMIT(1350000 / ((val) * (div)), \
+ 1, 254))
+#define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 0xff ? 0 : \
+ 1350000 / ((val) * (div)))
+#define DIV_FROM_REG(val) (1 << (val))
#define DIV_TO_REG(val) ((val) >= 8 ? 3 : (val) >= 4 ? 2 : (val) >= 2 ? 1 : 0)
/* Temperature is reported in 1 degC increments */
-#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\
- -127, 127))
+#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val) + ((val) < 0 ? -500 : 500)) \
+ / 1000, -127, 127))
#define TEMP_FROM_REG(val) ((val) * 1000)
-#define OFFSET_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\
- -127, 127))
+#define OFFSET_TO_REG(val) (SENSORS_LIMIT(((val) + ((val) < 0 ? -500 : 500)) \
+ / 1000, -127, 127))
#define OFFSET_FROM_REG(val) ((val) * 1000)
#define PWM_TO_REG(val) (SENSORS_LIMIT(val, 0, 255))
@@ -222,14 +228,16 @@ static int adm1026_scaling[] = { /* .001 Volts */
#define PWM_MIN_TO_REG(val) ((val) & 0xf0)
#define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4))
-/* Analog output is a voltage, and scaled to millivolts. The datasheet
+/*
+ * Analog output is a voltage, and scaled to millivolts. The datasheet
* indicates that the DAC could be used to drive the fans, but in our
* example board (Arima HDAMA) it isn't connected to the fans at all.
*/
-#define DAC_TO_REG(val) (SENSORS_LIMIT(((((val)*255)+500)/2500), 0, 255))
-#define DAC_FROM_REG(val) (((val)*2500)/255)
+#define DAC_TO_REG(val) (SENSORS_LIMIT(((((val) * 255) + 500) / 2500), 0, 255))
+#define DAC_FROM_REG(val) (((val) * 2500) / 255)
-/* Chip sampling rates
+/*
+ * Chip sampling rates
*
* Some sensors are not updated more frequently than once per second
* so it doesn't make sense to read them more often than that.
@@ -243,11 +251,13 @@ static int adm1026_scaling[] = { /* .001 Volts */
#define ADM1026_DATA_INTERVAL (1 * HZ)
#define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ)
-/* We allow for multiple chips in a single system.
+/*
+ * We allow for multiple chips in a single system.
*
* For each registered ADM1026, we need to keep state information
* at client->data. The adm1026_data structure is dynamically
- * allocated, when a new client structure is allocated. */
+ * allocated, when a new client structure is allocated.
+ */
struct pwm_data {
u8 pwm;
@@ -388,17 +398,16 @@ static void adm1026_init_client(struct i2c_client *client)
dev_dbg(&client->dev, "THERM pin enabled. "
"GPIO16 disabled.\n");
}
- if (data->config3 & CFG3_VREF_250) {
+ if (data->config3 & CFG3_VREF_250)
dev_dbg(&client->dev, "Vref is 2.50 Volts.\n");
- } else {
+ else
dev_dbg(&client->dev, "Vref is 1.82 Volts.\n");
- }
/* Read and pick apart the existing GPIO configuration */
value = 0;
- for (i = 0;i <= 15;++i) {
+ for (i = 0; i <= 15; ++i) {
if ((i & 0x03) == 0) {
value = adm1026_read_value(client,
- ADM1026_REG_GPIO_CFG_0_3 + i/4);
+ ADM1026_REG_GPIO_CFG_0_3 + i / 4);
}
data->gpio_config[i] = value & 0x03;
value >>= 2;
@@ -408,7 +417,8 @@ static void adm1026_init_client(struct i2c_client *client)
/* ... and then print it */
adm1026_print_gpio(client);
- /* If the user asks us to reprogram the GPIO config, then
+ /*
+ * If the user asks us to reprogram the GPIO config, then
* do it now.
*/
if (gpio_input[0] != -1 || gpio_output[0] != -1
@@ -417,7 +427,8 @@ static void adm1026_init_client(struct i2c_client *client)
adm1026_fixup_gpio(client);
}
- /* WE INTENTIONALLY make no changes to the limits,
+ /*
+ * WE INTENTIONALLY make no changes to the limits,
* offsets, pwms, fans and zones. If they were
* configured, we don't want to mess with them.
* If they weren't, the default is 100% PWM, no
@@ -428,7 +439,7 @@ static void adm1026_init_client(struct i2c_client *client)
* without first setting a value for pwm1.auto_pwm_min
* will not result in potentially dangerous fan speed decrease.
*/
- data->pwm1.auto_pwm_min=255;
+ data->pwm1.auto_pwm_min = 255;
/* Start monitoring */
value = adm1026_read_value(client, ADM1026_REG_CONFIG1);
/* Set MONITOR, clear interrupt acknowledge and s/w reset */
@@ -440,7 +451,7 @@ static void adm1026_init_client(struct i2c_client *client)
/* initialize fan_div[] to hardware defaults */
value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) |
(adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8);
- for (i = 0;i <= 7;++i) {
+ for (i = 0; i <= 7; ++i) {
data->fan_div[i] = DIV_FROM_REG(value & 0x03);
value >>= 2;
}
@@ -452,7 +463,7 @@ static void adm1026_print_gpio(struct i2c_client *client)
int i;
dev_dbg(&client->dev, "GPIO config is:\n");
- for (i = 0;i <= 7;++i) {
+ for (i = 0; i <= 7; ++i) {
if (data->config2 & (1 << i)) {
dev_dbg(&client->dev, "\t%sGP%s%d\n",
data->gpio_config[i] & 0x02 ? "" : "!",
@@ -462,7 +473,7 @@ static void adm1026_print_gpio(struct i2c_client *client)
dev_dbg(&client->dev, "\tFAN%d\n", i);
}
}
- for (i = 8;i <= 15;++i) {
+ for (i = 8; i <= 15; ++i) {
dev_dbg(&client->dev, "\t%sGP%s%d\n",
data->gpio_config[i] & 0x02 ? "" : "!",
data->gpio_config[i] & 0x01 ? "OUT" : "IN",
@@ -485,52 +496,46 @@ static void adm1026_fixup_gpio(struct i2c_client *client)
int value;
/* Make the changes requested. */
- /* We may need to unlock/stop monitoring or soft-reset the
+ /*
+ * We may need to unlock/stop monitoring or soft-reset the
* chip before we can make changes. This hasn't been
* tested much. FIXME
*/
/* Make outputs */
- for (i = 0;i <= 16;++i) {
- if (gpio_output[i] >= 0 && gpio_output[i] <= 16) {
+ for (i = 0; i <= 16; ++i) {
+ if (gpio_output[i] >= 0 && gpio_output[i] <= 16)
data->gpio_config[gpio_output[i]] |= 0x01;
- }
/* if GPIO0-7 is output, it isn't a FAN tach */
- if (gpio_output[i] >= 0 && gpio_output[i] <= 7) {
+ if (gpio_output[i] >= 0 && gpio_output[i] <= 7)
data->config2 |= 1 << gpio_output[i];
- }
}
/* Input overrides output */
- for (i = 0;i <= 16;++i) {
- if (gpio_input[i] >= 0 && gpio_input[i] <= 16) {
- data->gpio_config[gpio_input[i]] &= ~ 0x01;
- }
+ for (i = 0; i <= 16; ++i) {
+ if (gpio_input[i] >= 0 && gpio_input[i] <= 16)
+ data->gpio_config[gpio_input[i]] &= ~0x01;
/* if GPIO0-7 is input, it isn't a FAN tach */
- if (gpio_input[i] >= 0 && gpio_input[i] <= 7) {
+ if (gpio_input[i] >= 0 && gpio_input[i] <= 7)
data->config2 |= 1 << gpio_input[i];
- }
}
/* Inverted */
- for (i = 0;i <= 16;++i) {
- if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) {
- data->gpio_config[gpio_inverted[i]] &= ~ 0x02;
- }
+ for (i = 0; i <= 16; ++i) {
+ if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16)
+ data->gpio_config[gpio_inverted[i]] &= ~0x02;
}
/* Normal overrides inverted */
- for (i = 0;i <= 16;++i) {
- if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) {
+ for (i = 0; i <= 16; ++i) {
+ if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16)
data->gpio_config[gpio_normal[i]] |= 0x02;
- }
}
/* Fan overrides input and output */
- for (i = 0;i <= 7;++i) {
- if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) {
+ for (i = 0; i <= 7; ++i) {
+ if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7)
data->config2 &= ~(1 << gpio_fan[i]);
- }
}
/* Write new configs to registers */
@@ -538,7 +543,7 @@ static void adm1026_fixup_gpio(struct i2c_client *client)
data->config3 = (data->config3 & 0x3f)
| ((data->gpio_config[16] & 0x03) << 6);
adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3);
- for (i = 15, value = 0;i >= 0;--i) {
+ for (i = 15, value = 0; i >= 0; --i) {
value <<= 2;
value |= data->gpio_config[i] & 0x03;
if ((i & 0x03) == 0) {
@@ -563,22 +568,25 @@ static struct adm1026_data *adm1026_update_device(struct device *dev)
mutex_lock(&data->update_lock);
if (!data->valid
- || time_after(jiffies, data->last_reading + ADM1026_DATA_INTERVAL)) {
+ || time_after(jiffies,
+ data->last_reading + ADM1026_DATA_INTERVAL)) {
/* Things that change quickly */
dev_dbg(&client->dev, "Reading sensor values\n");
- for (i = 0;i <= 16;++i) {
+ for (i = 0; i <= 16; ++i) {
data->in[i] =
adm1026_read_value(client, ADM1026_REG_IN[i]);
}
- for (i = 0;i <= 7;++i) {
+ for (i = 0; i <= 7; ++i) {
data->fan[i] =
adm1026_read_value(client, ADM1026_REG_FAN(i));
}
- for (i = 0;i <= 2;++i) {
- /* NOTE: temp[] is s8 and we assume 2's complement
- * "conversion" in the assignment */
+ for (i = 0; i <= 2; ++i) {
+ /*
+ * NOTE: temp[] is s8 and we assume 2's complement
+ * "conversion" in the assignment
+ */
data->temp[i] =
adm1026_read_value(client, ADM1026_REG_TEMP[i]);
}
@@ -614,7 +622,7 @@ static struct adm1026_data *adm1026_update_device(struct device *dev)
time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) {
/* Things that don't change often */
dev_dbg(&client->dev, "Reading config values\n");
- for (i = 0;i <= 16;++i) {
+ for (i = 0; i <= 16; ++i) {
data->in_min[i] = adm1026_read_value(client,
ADM1026_REG_IN_MIN[i]);
data->in_max[i] = adm1026_read_value(client,
@@ -624,7 +632,7 @@ static struct adm1026_data *adm1026_update_device(struct device *dev)
value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3)
| (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7)
<< 8);
- for (i = 0;i <= 7;++i) {
+ for (i = 0; i <= 7; ++i) {
data->fan_min[i] = adm1026_read_value(client,
ADM1026_REG_FAN_MIN(i));
data->fan_div[i] = DIV_FROM_REG(value & 0x03);
@@ -632,7 +640,8 @@ static struct adm1026_data *adm1026_update_device(struct device *dev)
}
for (i = 0; i <= 2; ++i) {
- /* NOTE: temp_xxx[] are s8 and we assume 2's
+ /*
+ * NOTE: temp_xxx[] are s8 and we assume 2's
* complement "conversion" in the assignment
*/
data->temp_min[i] = adm1026_read_value(client,
@@ -681,7 +690,7 @@ static struct adm1026_data *adm1026_update_device(struct device *dev)
data->gpio_config[16] = (data->config3 >> 6) & 0x03;
value = 0;
- for (i = 0;i <= 15;++i) {
+ for (i = 0; i <= 15; ++i) {
if ((i & 0x03) == 0) {
value = adm1026_read_value(client,
ADM1026_REG_GPIO_CFG_0_3 + i/4);
@@ -721,7 +730,12 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int 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->in_min[nr] = INS_TO_REG(nr, val);
@@ -744,7 +758,12 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int 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->in_max[nr] = INS_TO_REG(nr, val);
@@ -779,23 +798,31 @@ in_reg(13);
in_reg(14);
in_reg(15);
-static ssize_t show_in16(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_in16(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in[16]) -
NEG12_OFFSET);
}
-static ssize_t show_in16_min(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_in16_min(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_min[16])
- NEG12_OFFSET);
}
-static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int 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->in_min[16] = INS_TO_REG(16, val + NEG12_OFFSET);
@@ -803,17 +830,24 @@ static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr, c
mutex_unlock(&data->update_lock);
return count;
}
-static ssize_t show_in16_max(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_in16_max(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_max[16])
- NEG12_OFFSET);
}
-static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int 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->in_max[16] = INS_TO_REG(16, val+NEG12_OFFSET);
@@ -823,10 +857,10 @@ static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr, c
}
static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in16, NULL, 16);
-static SENSOR_DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min, set_in16_min, 16);
-static SENSOR_DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max, set_in16_max, 16);
-
-
+static SENSOR_DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min,
+ set_in16_min, 16);
+static SENSOR_DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max,
+ set_in16_max, 16);
/* Now add fan read/write functions */
@@ -856,7 +890,12 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int 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->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]);
@@ -890,9 +929,8 @@ static void fixup_fan_min(struct device *dev, int fan, int old_div)
int new_div = data->fan_div[fan];
/* 0 and 0xff are special. Don't adjust them */
- if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff) {
+ if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff)
return;
- }
new_min = data->fan_min[fan] * old_div / new_div;
new_min = SENSORS_LIMIT(new_min, 1, 254);
@@ -916,9 +954,14 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int val, orig_div, new_div;
+ long val;
+ int orig_div, new_div;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
- val = simple_strtol(buf, NULL, 10);
new_div = DIV_TO_REG(val);
mutex_lock(&data->update_lock);
@@ -939,9 +982,9 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
(DIV_TO_REG(data->fan_div[7]) << 6));
}
- if (data->fan_div[nr] != orig_div) {
+ if (data->fan_div[nr] != orig_div)
fixup_fan_min(dev, nr, orig_div);
- }
+
mutex_unlock(&data->update_lock);
return count;
}
@@ -983,7 +1026,12 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int 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_min[nr] = TEMP_TO_REG(val);
@@ -1007,7 +1055,12 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int 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_max[nr] = TEMP_TO_REG(val);
@@ -1046,7 +1099,12 @@ static ssize_t set_temp_offset(struct device *dev,
int nr = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int 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_offset[nr] = TEMP_TO_REG(val);
@@ -1056,8 +1114,8 @@ static ssize_t set_temp_offset(struct device *dev,
return count;
}
-#define temp_offset_reg(offset) \
-static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \
+#define temp_offset_reg(offset) \
+static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \
show_temp_offset, set_temp_offset, offset - 1);
temp_offset_reg(1);
@@ -1097,7 +1155,12 @@ static ssize_t set_temp_auto_point1_temp(struct device *dev,
int nr = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int 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_tmin[nr] = TEMP_TO_REG(val);
@@ -1131,15 +1194,21 @@ static ssize_t set_temp_crit_enable(struct device *dev,
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int val = simple_strtol(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+
+ if (val > 1)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4);
+ adm1026_write_value(client, ADM1026_REG_CONFIG1, data->config1);
+ mutex_unlock(&data->update_lock);
- if ((val == 1) || (val==0)) {
- mutex_lock(&data->update_lock);
- data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4);
- adm1026_write_value(client, ADM1026_REG_CONFIG1,
- data->config1);
- mutex_unlock(&data->update_lock);
- }
return count;
}
@@ -1166,7 +1235,12 @@ static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int 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_crit[nr] = TEMP_TO_REG(val);
@@ -1184,17 +1258,24 @@ temp_crit_reg(1);
temp_crit_reg(2);
temp_crit_reg(3);
-static ssize_t show_analog_out_reg(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_analog_out_reg(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf, "%d\n", DAC_FROM_REG(data->analog_out));
}
-static ssize_t set_analog_out_reg(struct device *dev, struct device_attribute *attr, const char *buf,
- size_t count)
+static ssize_t set_analog_out_reg(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int 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->analog_out = DAC_TO_REG(val);
@@ -1206,7 +1287,8 @@ static ssize_t set_analog_out_reg(struct device *dev, struct device_attribute *a
static DEVICE_ATTR(analog_out, S_IRUGO | S_IWUSR, show_analog_out_reg,
set_analog_out_reg);
-static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
int vid = (data->gpio >> 11) & 0x1f;
@@ -1214,25 +1296,35 @@ static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, c
dev_dbg(dev, "Setting VID from GPIO11-15.\n");
return sprintf(buf, "%d\n", vid_from_reg(vid, data->vrm));
}
+
static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
-static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct adm1026_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%d\n", data->vrm);
}
-static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf,
- size_t count)
+
+static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct adm1026_data *data = dev_get_drvdata(dev);
+ unsigned long val;
+ int err;
- data->vrm = simple_strtol(buf, NULL, 10);
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+
+ data->vrm = val;
return count;
}
static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
-static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_alarms_reg(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf, "%ld\n", data->alarms);
@@ -1277,18 +1369,24 @@ static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 24);
static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 25);
static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 26);
-static ssize_t show_alarm_mask(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_alarm_mask(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf, "%ld\n", data->alarm_mask);
}
-static ssize_t set_alarm_mask(struct device *dev, struct device_attribute *attr, const char *buf,
- size_t count)
+static ssize_t set_alarm_mask(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int val = simple_strtol(buf, NULL, 10);
unsigned long mask;
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->alarm_mask = val & 0x7fffffff;
@@ -1313,18 +1411,24 @@ static DEVICE_ATTR(alarm_mask, S_IRUGO | S_IWUSR, show_alarm_mask,
set_alarm_mask);
-static ssize_t show_gpio(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_gpio(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf, "%ld\n", data->gpio);
}
-static ssize_t set_gpio(struct device *dev, struct device_attribute *attr, const char *buf,
- size_t count)
+static ssize_t set_gpio(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int val = simple_strtol(buf, NULL, 10);
long gpio;
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->gpio = val & 0x1ffff;
@@ -1340,19 +1444,24 @@ static ssize_t set_gpio(struct device *dev, struct device_attribute *attr, const
static DEVICE_ATTR(gpio, S_IRUGO | S_IWUSR, show_gpio, set_gpio);
-
-static ssize_t show_gpio_mask(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_gpio_mask(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf, "%ld\n", data->gpio_mask);
}
-static ssize_t set_gpio_mask(struct device *dev, struct device_attribute *attr, const char *buf,
- size_t count)
+static ssize_t set_gpio_mask(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int val = simple_strtol(buf, NULL, 10);
long mask;
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->gpio_mask = val & 0x1ffff;
@@ -1368,19 +1477,26 @@ static ssize_t set_gpio_mask(struct device *dev, struct device_attribute *attr,
static DEVICE_ATTR(gpio_mask, S_IRUGO | S_IWUSR, show_gpio_mask, set_gpio_mask);
-static ssize_t show_pwm_reg(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_pwm_reg(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm1.pwm));
}
-static ssize_t set_pwm_reg(struct device *dev, struct device_attribute *attr, const char *buf,
- size_t count)
+
+static ssize_t set_pwm_reg(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
if (data->pwm1.enable == 1) {
- int 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->pwm1.pwm = PWM_TO_REG(val);
@@ -1389,17 +1505,26 @@ static ssize_t set_pwm_reg(struct device *dev, struct device_attribute *attr, co
}
return count;
}
-static ssize_t show_auto_pwm_min(struct device *dev, struct device_attribute *attr, char *buf)
+
+static ssize_t show_auto_pwm_min(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf, "%d\n", data->pwm1.auto_pwm_min);
}
-static ssize_t set_auto_pwm_min(struct device *dev, struct device_attribute *attr, const char *buf,
- size_t count)
+
+static ssize_t set_auto_pwm_min(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int val = simple_strtol(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->pwm1.auto_pwm_min = SENSORS_LIMIT(val, 0, 255);
@@ -1411,44 +1536,53 @@ static ssize_t set_auto_pwm_min(struct device *dev, struct device_attribute *att
mutex_unlock(&data->update_lock);
return count;
}
-static ssize_t show_auto_pwm_max(struct device *dev, struct device_attribute *attr, char *buf)
+
+static ssize_t show_auto_pwm_max(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
return sprintf(buf, "%d\n", ADM1026_PWM_MAX);
}
-static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
+
+static ssize_t show_pwm_enable(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct adm1026_data *data = adm1026_update_device(dev);
return sprintf(buf, "%d\n", data->pwm1.enable);
}
-static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf,
- size_t count)
+
+static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1026_data *data = i2c_get_clientdata(client);
- int val = simple_strtol(buf, NULL, 10);
int old_enable;
+ unsigned long val;
+ int err;
- if ((val >= 0) && (val < 3)) {
- mutex_lock(&data->update_lock);
- old_enable = data->pwm1.enable;
- data->pwm1.enable = val;
- data->config1 = (data->config1 & ~CFG1_PWM_AFC)
- | ((val == 2) ? CFG1_PWM_AFC : 0);
- adm1026_write_value(client, ADM1026_REG_CONFIG1,
- data->config1);
- if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */
- data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
- PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
- adm1026_write_value(client, ADM1026_REG_PWM,
- data->pwm1.pwm);
- } else if (!((old_enable == 1) && (val == 1))) {
- /* set pwm to safe value */
- data->pwm1.pwm = 255;
- adm1026_write_value(client, ADM1026_REG_PWM,
- data->pwm1.pwm);
- }
- mutex_unlock(&data->update_lock);
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+
+ if (val >= 3)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ old_enable = data->pwm1.enable;
+ data->pwm1.enable = val;
+ data->config1 = (data->config1 & ~CFG1_PWM_AFC)
+ | ((val == 2) ? CFG1_PWM_AFC : 0);
+ adm1026_write_value(client, ADM1026_REG_CONFIG1, data->config1);
+ if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */
+ data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
+ PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
+ adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
+ } else if (!((old_enable == 1) && (val == 1))) {
+ /* set pwm to safe value */
+ data->pwm1.pwm = 255;
+ adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
}
+ mutex_unlock(&data->update_lock);
+
return count;
}
@@ -1716,7 +1850,8 @@ static int adm1026_probe(struct i2c_client *client,
adm1026_init_client(client);
/* Register sysfs hooks */
- if ((err = sysfs_create_group(&client->dev.kobj, &adm1026_group)))
+ err = sysfs_create_group(&client->dev.kobj, &adm1026_group);
+ if (err)
goto exitfree;
if (data->config1 & CFG1_AIN8_9)
err = sysfs_create_group(&client->dev.kobj,
@@ -1761,20 +1896,9 @@ static int adm1026_remove(struct i2c_client *client)
return 0;
}
-static int __init sm_adm1026_init(void)
-{
- return i2c_add_driver(&adm1026_driver);
-}
-
-static void __exit sm_adm1026_exit(void)
-{
- i2c_del_driver(&adm1026_driver);
-}
+module_i2c_driver(adm1026_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
"Justin Thiessen <jthiessen@penguincomputing.com>");
MODULE_DESCRIPTION("ADM1026 driver");
-
-module_init(sm_adm1026_init);
-module_exit(sm_adm1026_exit);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.