/*
- it87.c - Part of lm_sensors, Linux kernel modules for hardware
- monitoring.
-
- The IT8705F is an LPC-based Super I/O part that contains UARTs, a
- parallel port, an IR port, a MIDI port, a floppy controller, etc., in
- addition to an Environment Controller (Enhanced Hardware Monitor and
- Fan Controller)
-
- This driver supports only the Environment Controller in the IT8705F and
- similar parts. The other devices are supported by different drivers.
-
- Supports: IT8705F Super I/O chip w/LPC interface
- IT8712F Super I/O chip w/LPC interface
- IT8716F Super I/O chip w/LPC interface
- IT8718F Super I/O chip w/LPC interface
- IT8720F Super I/O chip w/LPC interface
- IT8726F Super I/O chip w/LPC interface
- Sis950 A clone of the IT8705F
-
- Copyright (C) 2001 Chris Gauthron
- Copyright (C) 2005-2007 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.
-*/
+ * it87.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring.
+ *
+ * The IT8705F is an LPC-based Super I/O part that contains UARTs, a
+ * parallel port, an IR port, a MIDI port, a floppy controller, etc., in
+ * addition to an Environment Controller (Enhanced Hardware Monitor and
+ * Fan Controller)
+ *
+ * This driver supports only the Environment Controller in the IT8705F and
+ * similar parts. The other devices are supported by different drivers.
+ *
+ * Supports: IT8705F Super I/O chip w/LPC interface
+ * IT8712F Super I/O chip w/LPC interface
+ * IT8716F Super I/O chip w/LPC interface
+ * IT8718F Super I/O chip w/LPC interface
+ * IT8720F Super I/O chip w/LPC interface
+ * IT8726F Super I/O chip w/LPC interface
+ * Sis950 A clone of the IT8705F
+ *
+ * Copyright (C) 2001 Chris Gauthron
+ * Copyright (C) 2005-2010 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.
+ */
#include <linux/module.h>
#include <linux/init.h>
#define IT87_BASE_REG 0x60
/* Logical device 7 registers (IT8712F and later) */
+#define IT87_SIO_GPIO3_REG 0x27
+#define IT87_SIO_GPIO5_REG 0x29
#define IT87_SIO_PINX2_REG 0x2c /* Pin selection */
#define IT87_SIO_VID_REG 0xfc /* VID value */
+#define IT87_SIO_BEEP_PIN_REG 0xf6 /* Beep pin mapping */
/* Update battery voltage after every reading if true */
static int update_vbat;
#define IT87_REG_VIN_ENABLE 0x50
#define IT87_REG_TEMP_ENABLE 0x51
+#define IT87_REG_BEEP_ENABLE 0x5c
#define IT87_REG_CHIPID 0x58
+#define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i))
+#define IT87_REG_AUTO_PWM(nr, i) (0x65 + (nr) * 8 + (i))
+
#define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8)/16),0,255))
#define IN_FROM_REG(val) ((val) * 16)
/* Values read from Super-I/O config space */
u8 revision;
u8 vid_value;
- /* Values set based on DMI strings */
+ u8 beep_pin;
+ /* Features skipped based on config or DMI */
+ u8 skip_vid;
+ u8 skip_fan;
u8 skip_pwm;
};
u8 vid; /* Register encoding, combined */
u8 vrm;
u32 alarms; /* Register encoding, combined */
+ u8 beeps; /* Register encoding */
u8 fan_main_ctrl; /* Register value */
u8 fan_ctl; /* Register value */
- u8 manual_pwm_ctl[3]; /* manual PWM value set by user */
+
+ /* The following 3 arrays correspond to the same registers. The
+ * meaning of bits 6-0 depends on the value of bit 7, and we want
+ * to preserve settings on mode changes, so we have to track all
+ * values separately. */
+ u8 pwm_ctrl[3]; /* Register value */
+ u8 pwm_duty[3]; /* Manual PWM value set by user (bit 6-0) */
+ u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */
+
+ /* Automatic fan speed control registers */
+ u8 auto_pwm[3][4]; /* [nr][3] is hard-coded */
+ s8 auto_temp[3][5]; /* [nr][0] is point1_temp_hyst */
};
static inline int has_16bit_fans(const struct it87_data *data)
|| data->type == it8720;
}
+static inline int has_old_autopwm(const struct it87_data *data)
+{
+ /* The old automatic fan speed control interface is implemented
+ by IT8705F chips up to revision F and IT8712F chips up to
+ revision G. */
+ return (data->type == it87 && data->revision < 0x03)
+ || (data->type == it8712 && data->revision < 0x08);
+}
+
static int it87_probe(struct platform_device *pdev);
static int __devexit it87_remove(struct platform_device *pdev);
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
mutex_lock(&data->update_lock);
data->in_min[nr] = IN_TO_REG(val);
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
mutex_lock(&data->update_lock);
data->in_max[nr] = IN_TO_REG(val);
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- int val = simple_strtol(buf, NULL, 10);
+ long val;
+
+ if (strict_strtol(buf, 10, &val) < 0)
+ return -EINVAL;
mutex_lock(&data->update_lock);
data->temp_high[nr] = TEMP_TO_REG(val);
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- int val = simple_strtol(buf, NULL, 10);
+ long val;
+
+ if (strict_strtol(buf, 10, &val) < 0)
+ return -EINVAL;
mutex_lock(&data->update_lock);
data->temp_low[nr] = TEMP_TO_REG(val);
int nr = sensor_attr->index;
struct it87_data *data = it87_update_device(dev);
- u8 reg = data->sensor; /* In case the value is updated while we use it */
-
+ u8 reg = data->sensor; /* In case the value is updated while
+ we use it */
+
if (reg & (1 << nr))
return sprintf(buf, "3\n"); /* thermal diode */
if (reg & (8 << nr))
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- int val = simple_strtol(buf, NULL, 10);
+ long val;
+ u8 reg;
- mutex_lock(&data->update_lock);
+ if (strict_strtol(buf, 10, &val) < 0)
+ return -EINVAL;
- data->sensor &= ~(1 << nr);
- data->sensor &= ~(8 << nr);
+ reg = it87_read_value(data, IT87_REG_TEMP_ENABLE);
+ reg &= ~(1 << nr);
+ reg &= ~(8 << nr);
if (val == 2) { /* backwards compatibility */
dev_warn(dev, "Sensor type 2 is deprecated, please use 4 "
"instead\n");
}
/* 3 = thermal diode; 4 = thermistor; 0 = disabled */
if (val == 3)
- data->sensor |= 1 << nr;
+ reg |= 1 << nr;
else if (val == 4)
- data->sensor |= 8 << nr;
- else if (val != 0) {
- mutex_unlock(&data->update_lock);
+ reg |= 8 << nr;
+ else if (val != 0)
return -EINVAL;
- }
+
+ mutex_lock(&data->update_lock);
+ data->sensor = reg;
it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor);
+ data->valid = 0; /* Force cache refresh */
mutex_unlock(&data->update_lock);
return count;
}
show_sensor_offset(3);
/* 3 Fans */
+
+static int pwm_mode(const struct it87_data *data, int nr)
+{
+ int ctrl = data->fan_main_ctrl & (1 << nr);
+
+ if (ctrl == 0) /* Full speed */
+ return 0;
+ if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */
+ return 2;
+ else /* Manual mode */
+ return 1;
+}
+
static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
char *buf)
{
int nr = sensor_attr->index;
struct it87_data *data = it87_update_device(dev);
- return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr],
+ 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, struct device_attribute *attr,
int nr = sensor_attr->index;
struct it87_data *data = it87_update_device(dev);
- 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 show_fan_div(struct device *dev, struct device_attribute *attr,
char *buf)
struct it87_data *data = it87_update_device(dev);
return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
}
-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 sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
int nr = sensor_attr->index;
struct it87_data *data = it87_update_device(dev);
- return sprintf(buf,"%d\n", (data->fan_main_ctrl & (1 << nr)) ? 1 : 0);
+ return sprintf(buf, "%d\n", pwm_mode(data, nr));
}
static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
char *buf)
int nr = sensor_attr->index;
struct it87_data *data = it87_update_device(dev);
- return sprintf(buf,"%d\n", data->manual_pwm_ctl[nr]);
+ return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm_duty[nr]));
}
static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
char *buf)
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- int val = simple_strtol(buf, NULL, 10);
+ long val;
u8 reg;
+ if (strict_strtol(buf, 10, &val) < 0)
+ return -EINVAL;
+
mutex_lock(&data->update_lock);
reg = it87_read_value(data, IT87_REG_FAN_DIV);
switch (nr) {
- case 0: data->fan_div[nr] = reg & 0x07; break;
- case 1: data->fan_div[nr] = (reg >> 3) & 0x07; break;
- case 2: data->fan_div[nr] = (reg & 0x40) ? 3 : 1; break;
+ case 0:
+ data->fan_div[nr] = reg & 0x07;
+ break;
+ case 1:
+ data->fan_div[nr] = (reg >> 3) & 0x07;
+ break;
+ case 2:
+ data->fan_div[nr] = (reg & 0x40) ? 3 : 1;
+ break;
}
data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
int min;
u8 old;
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+
mutex_lock(&data->update_lock);
old = it87_read_value(data, IT87_REG_FAN_DIV);
mutex_unlock(&data->update_lock);
return count;
}
+
+/* Returns 0 if OK, -EINVAL otherwise */
+static int check_trip_points(struct device *dev, int nr)
+{
+ const struct it87_data *data = dev_get_drvdata(dev);
+ int i, err = 0;
+
+ if (has_old_autopwm(data)) {
+ for (i = 0; i < 3; i++) {
+ if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
+ err = -EINVAL;
+ }
+ for (i = 0; i < 2; i++) {
+ if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
+ err = -EINVAL;
+ }
+ }
+
+ if (err) {
+ dev_err(dev, "Inconsistent trip points, not switching to "
+ "automatic mode\n");
+ dev_err(dev, "Adjust the trip points and try again\n");
+ }
+ return err;
+}
+
static ssize_t set_pwm_enable(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- int val = simple_strtol(buf, NULL, 10);
+ long val;
+
+ if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 2)
+ return -EINVAL;
+
+ /* Check trip points before switching to automatic mode */
+ if (val == 2) {
+ if (check_trip_points(dev, nr) < 0)
+ return -EINVAL;
+ }
mutex_lock(&data->update_lock);
it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr));
/* set on/off mode */
data->fan_main_ctrl &= ~(1 << nr);
- it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl);
- } else if (val == 1) {
+ it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
+ data->fan_main_ctrl);
+ } else {
+ if (val == 1) /* Manual mode */
+ data->pwm_ctrl[nr] = data->pwm_duty[nr];
+ else /* Automatic mode */
+ data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
+ it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
/* set SmartGuardian mode */
data->fan_main_ctrl |= (1 << nr);
- it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl);
- /* set saved pwm value, clear FAN_CTLX PWM mode bit */
- it87_write_value(data, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr]));
- } else {
- mutex_unlock(&data->update_lock);
- return -EINVAL;
+ it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
+ data->fan_main_ctrl);
}
mutex_unlock(&data->update_lock);
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- int val = simple_strtol(buf, NULL, 10);
+ long val;
- if (val < 0 || val > 255)
+ if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255)
return -EINVAL;
mutex_lock(&data->update_lock);
- data->manual_pwm_ctl[nr] = val;
- if (data->fan_main_ctrl & (1 << nr))
- it87_write_value(data, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr]));
+ data->pwm_duty[nr] = PWM_TO_REG(val);
+ /* If we are in manual mode, write the duty cycle immediately;
+ * otherwise, just store it for later use. */
+ if (!(data->pwm_ctrl[nr] & 0x80)) {
+ data->pwm_ctrl[nr] = data->pwm_duty[nr];
+ it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
+ }
mutex_unlock(&data->update_lock);
return count;
}
struct device_attribute *attr, const char *buf, size_t count)
{
struct it87_data *data = dev_get_drvdata(dev);
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
int i;
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
+
/* Search for the nearest available frequency */
for (i = 0; i < 7; i++) {
if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2)
return count;
}
+static ssize_t show_pwm_temp_map(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+
+ struct it87_data *data = it87_update_device(dev);
+ int map;
+
+ if (data->pwm_temp_map[nr] < 3)
+ map = 1 << data->pwm_temp_map[nr];
+ else
+ map = 0; /* Should never happen */
+ return sprintf(buf, "%d\n", map);
+}
+static ssize_t set_pwm_temp_map(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+
+ struct it87_data *data = dev_get_drvdata(dev);
+ long val;
+ u8 reg;
+
+ /* This check can go away if we ever support automatic fan speed
+ control on newer chips. */
+ if (!has_old_autopwm(data)) {
+ dev_notice(dev, "Mapping change disabled for safety reasons\n");
+ return -EINVAL;
+ }
+
+ if (strict_strtol(buf, 10, &val) < 0)
+ return -EINVAL;
+
+ switch (val) {
+ case (1 << 0):
+ reg = 0x00;
+ break;
+ case (1 << 1):
+ reg = 0x01;
+ break;
+ case (1 << 2):
+ reg = 0x02;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ mutex_lock(&data->update_lock);
+ data->pwm_temp_map[nr] = reg;
+ /* If we are in automatic mode, write the temp mapping immediately;
+ * otherwise, just store it for later use. */
+ if (data->pwm_ctrl[nr] & 0x80) {
+ data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
+ it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
+ }
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_auto_pwm(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct it87_data *data = it87_update_device(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int point = sensor_attr->index;
+
+ return sprintf(buf, "%d\n", PWM_FROM_REG(data->auto_pwm[nr][point]));
+}
+
+static ssize_t set_auto_pwm(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct it87_data *data = dev_get_drvdata(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int point = sensor_attr->index;
+ long val;
+
+ if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ data->auto_pwm[nr][point] = PWM_TO_REG(val);
+ it87_write_value(data, IT87_REG_AUTO_PWM(nr, point),
+ data->auto_pwm[nr][point]);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static ssize_t show_auto_temp(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct it87_data *data = it87_update_device(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int point = sensor_attr->index;
+
+ return sprintf(buf, "%d\n", TEMP_FROM_REG(data->auto_temp[nr][point]));
+}
+
+static ssize_t set_auto_temp(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct it87_data *data = dev_get_drvdata(dev);
+ struct sensor_device_attribute_2 *sensor_attr =
+ to_sensor_dev_attr_2(attr);
+ int nr = sensor_attr->nr;
+ int point = sensor_attr->index;
+ long val;
+
+ if (strict_strtol(buf, 10, &val) < 0 || val < -128000 || val > 127000)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ data->auto_temp[nr][point] = TEMP_TO_REG(val);
+ it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point),
+ data->auto_temp[nr][point]);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
#define show_fan_offset(offset) \
static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
show_pwm, set_pwm, offset - 1); \
static DEVICE_ATTR(pwm##offset##_freq, \
(offset == 1 ? S_IRUGO | S_IWUSR : S_IRUGO), \
- show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL));
+ show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL)); \
+static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels_temp, \
+ S_IRUGO | S_IWUSR, show_pwm_temp_map, set_pwm_temp_map, \
+ offset - 1); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_pwm, \
+ S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \
+ offset - 1, 0); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_pwm, \
+ S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \
+ offset - 1, 1); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_pwm, \
+ S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \
+ offset - 1, 2); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_pwm, \
+ S_IRUGO, show_auto_pwm, NULL, offset - 1, 3); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp, \
+ S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \
+ offset - 1, 1); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp_hyst, \
+ S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \
+ offset - 1, 0); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_temp, \
+ S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \
+ offset - 1, 2); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_temp, \
+ S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \
+ offset - 1, 3); \
+static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_temp, \
+ S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \
+ offset - 1, 4);
show_pwm_offset(1);
show_pwm_offset(2);
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
int nr = sensor_attr->index;
struct it87_data *data = dev_get_drvdata(dev);
- int val = simple_strtol(buf, NULL, 10);
+ long val;
+
+ if (strict_strtol(buf, 10, &val) < 0)
+ return -EINVAL;
mutex_lock(&data->update_lock);
data->fan_min[nr] = FAN16_TO_REG(val);
show_fan16_offset(5);
/* 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 it87_data *data = it87_update_device(dev);
return sprintf(buf, "%u\n", data->alarms);
static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17);
static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18);
-static ssize_t
-show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ int bitnr = to_sensor_dev_attr(attr)->index;
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1);
+}
+static ssize_t set_beep(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int bitnr = to_sensor_dev_attr(attr)->index;
+ struct it87_data *data = dev_get_drvdata(dev);
+ long val;
+
+ if (strict_strtol(buf, 10, &val) < 0
+ || (val != 0 && val != 1))
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);
+ if (val)
+ data->beeps |= (1 << bitnr);
+ else
+ data->beeps &= ~(1 << bitnr);
+ it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR,
+ show_beep, set_beep, 1);
+static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1);
+static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1);
+static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1);
+static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1);
+static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1);
+static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1);
+/* fanX_beep writability is set later */
+static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0);
+static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0);
+static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0);
+static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0);
+static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0);
+static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR,
+ show_beep, set_beep, 2);
+static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2);
+
+static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct it87_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%u\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 it87_data *data = dev_get_drvdata(dev);
- u32 val;
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) < 0)
+ return -EINVAL;
- val = simple_strtoul(buf, NULL, 10);
data->vrm = val;
return count;
}
static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_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 it87_data *data = it87_update_device(dev);
return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
.attrs = it87_attributes,
};
-static struct attribute *it87_attributes_opt[] = {
+static struct attribute *it87_attributes_beep[] = {
+ &sensor_dev_attr_in0_beep.dev_attr.attr,
+ &sensor_dev_attr_in1_beep.dev_attr.attr,
+ &sensor_dev_attr_in2_beep.dev_attr.attr,
+ &sensor_dev_attr_in3_beep.dev_attr.attr,
+ &sensor_dev_attr_in4_beep.dev_attr.attr,
+ &sensor_dev_attr_in5_beep.dev_attr.attr,
+ &sensor_dev_attr_in6_beep.dev_attr.attr,
+ &sensor_dev_attr_in7_beep.dev_attr.attr,
+
+ &sensor_dev_attr_temp1_beep.dev_attr.attr,
+ &sensor_dev_attr_temp2_beep.dev_attr.attr,
+ &sensor_dev_attr_temp3_beep.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group it87_group_beep = {
+ .attrs = it87_attributes_beep,
+};
+
+static struct attribute *it87_attributes_fan16[5][3+1] = { {
&sensor_dev_attr_fan1_input16.dev_attr.attr,
&sensor_dev_attr_fan1_min16.dev_attr.attr,
+ &sensor_dev_attr_fan1_alarm.dev_attr.attr,
+ NULL
+}, {
&sensor_dev_attr_fan2_input16.dev_attr.attr,
&sensor_dev_attr_fan2_min16.dev_attr.attr,
+ &sensor_dev_attr_fan2_alarm.dev_attr.attr,
+ NULL
+}, {
&sensor_dev_attr_fan3_input16.dev_attr.attr,
&sensor_dev_attr_fan3_min16.dev_attr.attr,
+ &sensor_dev_attr_fan3_alarm.dev_attr.attr,
+ NULL
+}, {
&sensor_dev_attr_fan4_input16.dev_attr.attr,
&sensor_dev_attr_fan4_min16.dev_attr.attr,
+ &sensor_dev_attr_fan4_alarm.dev_attr.attr,
+ NULL
+}, {
&sensor_dev_attr_fan5_input16.dev_attr.attr,
&sensor_dev_attr_fan5_min16.dev_attr.attr,
+ &sensor_dev_attr_fan5_alarm.dev_attr.attr,
+ NULL
+} };
+
+static const struct attribute_group it87_group_fan16[5] = {
+ { .attrs = it87_attributes_fan16[0] },
+ { .attrs = it87_attributes_fan16[1] },
+ { .attrs = it87_attributes_fan16[2] },
+ { .attrs = it87_attributes_fan16[3] },
+ { .attrs = it87_attributes_fan16[4] },
+};
+static struct attribute *it87_attributes_fan[3][4+1] = { {
&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,
+ NULL
+}, {
&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,
+ NULL
+}, {
&sensor_dev_attr_fan3_input.dev_attr.attr,
&sensor_dev_attr_fan3_min.dev_attr.attr,
&sensor_dev_attr_fan3_div.dev_attr.attr,
-
- &sensor_dev_attr_fan1_alarm.dev_attr.attr,
- &sensor_dev_attr_fan2_alarm.dev_attr.attr,
&sensor_dev_attr_fan3_alarm.dev_attr.attr,
- &sensor_dev_attr_fan4_alarm.dev_attr.attr,
- &sensor_dev_attr_fan5_alarm.dev_attr.attr,
+ NULL
+} };
+
+static const struct attribute_group it87_group_fan[3] = {
+ { .attrs = it87_attributes_fan[0] },
+ { .attrs = it87_attributes_fan[1] },
+ { .attrs = it87_attributes_fan[2] },
+};
+
+static const struct attribute_group *
+it87_get_fan_group(const struct it87_data *data)
+{
+ return has_16bit_fans(data) ? it87_group_fan16 : it87_group_fan;
+}
+static struct attribute *it87_attributes_pwm[3][4+1] = { {
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
- &sensor_dev_attr_pwm2_enable.dev_attr.attr,
- &sensor_dev_attr_pwm3_enable.dev_attr.attr,
&sensor_dev_attr_pwm1.dev_attr.attr,
- &sensor_dev_attr_pwm2.dev_attr.attr,
- &sensor_dev_attr_pwm3.dev_attr.attr,
&dev_attr_pwm1_freq.attr,
+ &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
+ NULL
+}, {
+ &sensor_dev_attr_pwm2_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm2.dev_attr.attr,
&dev_attr_pwm2_freq.attr,
+ &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
+ NULL
+}, {
+ &sensor_dev_attr_pwm3_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm3.dev_attr.attr,
&dev_attr_pwm3_freq.attr,
+ &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
+ NULL
+} };
+
+static const struct attribute_group it87_group_pwm[3] = {
+ { .attrs = it87_attributes_pwm[0] },
+ { .attrs = it87_attributes_pwm[1] },
+ { .attrs = it87_attributes_pwm[2] },
+};
+
+static struct attribute *it87_attributes_autopwm[3][9+1] = { {
+ &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
+ NULL
+}, {
+ &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
+ NULL
+}, {
+ &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
+ NULL
+} };
+
+static const struct attribute_group it87_group_autopwm[3] = {
+ { .attrs = it87_attributes_autopwm[0] },
+ { .attrs = it87_attributes_autopwm[1] },
+ { .attrs = it87_attributes_autopwm[2] },
+};
+
+static struct attribute *it87_attributes_fan_beep[] = {
+ &sensor_dev_attr_fan1_beep.dev_attr.attr,
+ &sensor_dev_attr_fan2_beep.dev_attr.attr,
+ &sensor_dev_attr_fan3_beep.dev_attr.attr,
+ &sensor_dev_attr_fan4_beep.dev_attr.attr,
+ &sensor_dev_attr_fan5_beep.dev_attr.attr,
+};
+static struct attribute *it87_attributes_vid[] = {
&dev_attr_vrm.attr,
&dev_attr_cpu0_vid.attr,
NULL
};
-static const struct attribute_group it87_group_opt = {
- .attrs = it87_attributes_opt,
+static const struct attribute_group it87_group_vid = {
+ .attrs = it87_attributes_vid,
};
/* SuperIO detection - will change isa_address if a chip is found */
chip_type, *address, sio_data->revision);
/* Read GPIO config and VID value from LDN 7 (GPIO) */
- if (chip_type != IT8705F_DEVID) {
+ if (sio_data->type == it87) {
+ /* The IT8705F doesn't have VID pins at all */
+ sio_data->skip_vid = 1;
+
+ /* The IT8705F has a different LD number for GPIO */
+ superio_select(5);
+ sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
+ } else {
int reg;
superio_select(GPIO);
- if ((chip_type == it8718) ||
- (chip_type == it8720))
+ /* We need at least 4 VID pins */
+ reg = superio_inb(IT87_SIO_GPIO3_REG);
+ if (reg & 0x0f) {
+ pr_info("it87: VID is disabled (pins used for GPIO)\n");
+ sio_data->skip_vid = 1;
+ }
+
+ /* Check if fan3 is there or not */
+ if (reg & (1 << 6))
+ sio_data->skip_pwm |= (1 << 2);
+ if (reg & (1 << 7))
+ sio_data->skip_fan |= (1 << 2);
+
+ /* Check if fan2 is there or not */
+ reg = superio_inb(IT87_SIO_GPIO5_REG);
+ if (reg & (1 << 1))
+ sio_data->skip_pwm |= (1 << 1);
+ if (reg & (1 << 2))
+ sio_data->skip_fan |= (1 << 1);
+
+ if ((sio_data->type == it8718 || sio_data->type == it8720)
+ && !(sio_data->skip_vid))
sio_data->vid_value = superio_inb(IT87_SIO_VID_REG);
reg = superio_inb(IT87_SIO_PINX2_REG);
pr_info("it87: in3 is VCC (+5V)\n");
if (reg & (1 << 1))
pr_info("it87: in7 is VCCH (+5V Stand-By)\n");
+
+ sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
}
+ if (sio_data->beep_pin)
+ pr_info("it87: Beeping is supported\n");
/* Disable specific features based on DMI strings */
board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
return err;
}
+static void it87_remove_files(struct device *dev)
+{
+ struct it87_data *data = platform_get_drvdata(pdev);
+ struct it87_sio_data *sio_data = dev->platform_data;
+ const struct attribute_group *fan_group = it87_get_fan_group(data);
+ int i;
+
+ sysfs_remove_group(&dev->kobj, &it87_group);
+ if (sio_data->beep_pin)
+ sysfs_remove_group(&dev->kobj, &it87_group_beep);
+ for (i = 0; i < 5; i++) {
+ if (!(data->has_fan & (1 << i)))
+ continue;
+ sysfs_remove_group(&dev->kobj, &fan_group[i]);
+ if (sio_data->beep_pin)
+ sysfs_remove_file(&dev->kobj,
+ it87_attributes_fan_beep[i]);
+ }
+ for (i = 0; i < 3; i++) {
+ if (sio_data->skip_pwm & (1 << 0))
+ continue;
+ sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]);
+ if (has_old_autopwm(data))
+ sysfs_remove_group(&dev->kobj,
+ &it87_group_autopwm[i]);
+ }
+ if (!sio_data->skip_vid)
+ sysfs_remove_group(&dev->kobj, &it87_group_vid);
+}
+
static int __devinit it87_probe(struct platform_device *pdev)
{
struct it87_data *data;
struct resource *res;
struct device *dev = &pdev->dev;
struct it87_sio_data *sio_data = dev->platform_data;
- int err = 0;
+ const struct attribute_group *fan_group;
+ int err = 0, i;
int enable_pwm_interface;
+ int fan_beep_need_rw;
static const char *names[] = {
"it87",
"it8712",
goto ERROR0;
}
- if (!(data = kzalloc(sizeof(struct it87_data), GFP_KERNEL))) {
+ data = kzalloc(sizeof(struct it87_data), GFP_KERNEL);
+ if (!data) {
err = -ENOMEM;
goto ERROR1;
}
it87_init_device(pdev);
/* Register sysfs hooks */
- if ((err = sysfs_create_group(&dev->kobj, &it87_group)))
+ err = sysfs_create_group(&dev->kobj, &it87_group);
+ if (err)
goto ERROR2;
+ if (sio_data->beep_pin) {
+ err = sysfs_create_group(&dev->kobj, &it87_group_beep);
+ if (err)
+ goto ERROR4;
+ }
+
/* Do not create fan files for disabled fans */
- if (has_16bit_fans(data)) {
- /* 16-bit tachometers */
- if (data->has_fan & (1 << 0)) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_fan1_input16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan1_min16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan1_alarm.dev_attr)))
- goto ERROR4;
- }
- if (data->has_fan & (1 << 1)) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_fan2_input16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan2_min16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan2_alarm.dev_attr)))
- goto ERROR4;
- }
- if (data->has_fan & (1 << 2)) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_fan3_input16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan3_min16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan3_alarm.dev_attr)))
- goto ERROR4;
- }
- if (data->has_fan & (1 << 3)) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_fan4_input16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan4_min16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan4_alarm.dev_attr)))
- goto ERROR4;
- }
- if (data->has_fan & (1 << 4)) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_fan5_input16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan5_min16.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan5_alarm.dev_attr)))
- goto ERROR4;
- }
- } else {
- /* 8-bit tachometers with clock divider */
- if (data->has_fan & (1 << 0)) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_fan1_input.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan1_min.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan1_div.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan1_alarm.dev_attr)))
- goto ERROR4;
- }
- if (data->has_fan & (1 << 1)) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_fan2_input.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan2_min.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan2_div.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan2_alarm.dev_attr)))
- goto ERROR4;
- }
- if (data->has_fan & (1 << 2)) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_fan3_input.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan3_min.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan3_div.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_fan3_alarm.dev_attr)))
+ fan_group = it87_get_fan_group(data);
+ fan_beep_need_rw = 1;
+ for (i = 0; i < 5; i++) {
+ if (!(data->has_fan & (1 << i)))
+ continue;
+ err = sysfs_create_group(&dev->kobj, &fan_group[i]);
+ if (err)
+ goto ERROR4;
+
+ if (sio_data->beep_pin) {
+ err = sysfs_create_file(&dev->kobj,
+ it87_attributes_fan_beep[i]);
+ if (err)
goto ERROR4;
+ if (!fan_beep_need_rw)
+ continue;
+
+ /* As we have a single beep enable bit for all fans,
+ * only the first enabled fan has a writable attribute
+ * for it. */
+ if (sysfs_chmod_file(&dev->kobj,
+ it87_attributes_fan_beep[i],
+ S_IRUGO | S_IWUSR))
+ dev_dbg(dev, "chmod +w fan%d_beep failed\n",
+ i + 1);
+ fan_beep_need_rw = 0;
}
}
if (enable_pwm_interface) {
- if (!(sio_data->skip_pwm & (1 << 0))) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_pwm1_enable.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_pwm1.dev_attr))
- || (err = device_create_file(dev,
- &dev_attr_pwm1_freq)))
- goto ERROR4;
- }
- if (!(sio_data->skip_pwm & (1 << 1))) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_pwm2_enable.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_pwm2.dev_attr))
- || (err = device_create_file(dev,
- &dev_attr_pwm2_freq)))
+ for (i = 0; i < 3; i++) {
+ if (sio_data->skip_pwm & (1 << i))
+ continue;
+ err = sysfs_create_group(&dev->kobj,
+ &it87_group_pwm[i]);
+ if (err)
goto ERROR4;
- }
- if (!(sio_data->skip_pwm & (1 << 2))) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_pwm3_enable.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_pwm3.dev_attr))
- || (err = device_create_file(dev,
- &dev_attr_pwm3_freq)))
+
+ if (!has_old_autopwm(data))
+ continue;
+ err = sysfs_create_group(&dev->kobj,
+ &it87_group_autopwm[i]);
+ if (err)
goto ERROR4;
}
}
- if (data->type == it8712 || data->type == it8716
- || data->type == it8718 || data->type == it8720) {
+ if (!sio_data->skip_vid) {
data->vrm = vid_which_vrm();
/* VID reading from Super-I/O config space if available */
data->vid = sio_data->vid_value;
- if ((err = device_create_file(dev,
- &dev_attr_vrm))
- || (err = device_create_file(dev,
- &dev_attr_cpu0_vid)))
+ err = sysfs_create_group(&dev->kobj, &it87_group_vid);
+ if (err)
goto ERROR4;
}
return 0;
ERROR4:
- sysfs_remove_group(&dev->kobj, &it87_group);
- sysfs_remove_group(&dev->kobj, &it87_group_opt);
+ it87_remove_files(dev);
ERROR2:
platform_set_drvdata(pdev, NULL);
kfree(data);
struct it87_data *data = platform_get_drvdata(pdev);
hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&pdev->dev.kobj, &it87_group);
- sysfs_remove_group(&pdev->dev.kobj, &it87_group_opt);
+ it87_remove_files(&pdev->dev);
release_region(data->addr, IT87_EC_EXTENT);
platform_set_drvdata(pdev, NULL);
/* Called when we have found a new IT87. */
static void __devinit it87_init_device(struct platform_device *pdev)
{
+ struct it87_sio_data *sio_data = pdev->dev.platform_data;
struct it87_data *data = platform_get_drvdata(pdev);
int tmp, i;
-
- /* initialize to sane defaults:
- * - if the chip is in manual pwm mode, this will be overwritten with
- * the actual settings on the chip (so in this case, initialization
- * is not needed)
- * - if in automatic or on/off mode, we could switch to manual mode,
- * read the registers and set manual_pwm_ctl accordingly, but currently
- * this is not implemented, so we initialize to something sane */
+ u8 mask;
+
+ /* For each PWM channel:
+ * - If it is in automatic mode, setting to manual mode should set
+ * the fan to full speed by default.
+ * - If it is in manual mode, we need a mapping to temperature
+ * channels to use when later setting to automatic mode later.
+ * Use a 1:1 mapping by default (we are clueless.)
+ * In both cases, the value can (and should) be changed by the user
+ * prior to switching to a different mode. */
for (i = 0; i < 3; i++) {
- data->manual_pwm_ctl[i] = 0xff;
+ data->pwm_temp_map[i] = i;
+ data->pwm_duty[i] = 0x7f; /* Full speed */
+ data->auto_pwm[i][3] = 0x7f; /* Full speed, hard-coded */
}
/* Some chips seem to have default value 0xff for all limit
it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127);
}
- /* Check if temperature channels are reset manually or by some reason */
- tmp = it87_read_value(data, IT87_REG_TEMP_ENABLE);
- if ((tmp & 0x3f) == 0) {
- /* Temp1,Temp3=thermistor; Temp2=thermal diode */
- tmp = (tmp & 0xc0) | 0x2a;
- it87_write_value(data, IT87_REG_TEMP_ENABLE, tmp);
- }
- data->sensor = tmp;
+ /* Temperature channels are not forcibly enabled, as they can be
+ * set to two different sensor types and we can't guess which one
+ * is correct for a given system. These channels can be enabled at
+ * run-time through the temp{1-3}_type sysfs accessors if needed. */
/* Check if voltage monitors are reset manually or by some reason */
tmp = it87_read_value(data, IT87_REG_VIN_ENABLE);
}
/* Check if tachometers are reset manually or by some reason */
+ mask = 0x70 & ~(sio_data->skip_fan << 4);
data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL);
- if ((data->fan_main_ctrl & 0x70) == 0) {
+ if ((data->fan_main_ctrl & mask) == 0) {
/* Enable all fan tachometers */
- data->fan_main_ctrl |= 0x70;
- it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl);
+ data->fan_main_ctrl |= mask;
+ it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
+ data->fan_main_ctrl);
}
data->has_fan = (data->fan_main_ctrl >> 4) & 0x07;
}
}
- /* Set current fan mode registers and the default settings for the
- * other mode registers */
- for (i = 0; i < 3; i++) {
- if (data->fan_main_ctrl & (1 << i)) {
- /* pwm mode */
- tmp = it87_read_value(data, IT87_REG_PWM(i));
- if (tmp & 0x80) {
- /* automatic pwm - not yet implemented, but
- * leave the settings made by the BIOS alone
- * until a change is requested via the sysfs
- * interface */
- } else {
- /* manual pwm */
- data->manual_pwm_ctl[i] = PWM_FROM_REG(tmp);
- }
- }
- }
+ /* Fan input pins may be used for alternative functions */
+ data->has_fan &= ~sio_data->skip_fan;
/* Start monitoring */
it87_write_value(data, IT87_REG_CONFIG,
| (update_vbat ? 0x41 : 0x01));
}
+static void it87_update_pwm_ctrl(struct it87_data *data, int nr)
+{
+ data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr));
+ if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */
+ data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03;
+ else /* Manual mode */
+ data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f;
+
+ if (has_old_autopwm(data)) {
+ int i;
+
+ for (i = 0; i < 5 ; i++)
+ data->auto_temp[nr][i] = it87_read_value(data,
+ IT87_REG_AUTO_TEMP(nr, i));
+ for (i = 0; i < 3 ; i++)
+ data->auto_pwm[nr][i] = it87_read_value(data,
+ IT87_REG_AUTO_PWM(nr, i));
+ }
+}
+
static struct it87_data *it87_update_device(struct device *dev)
{
struct it87_data *data = dev_get_drvdata(dev);
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|| !data->valid) {
-
if (update_vbat) {
/* Cleared after each update, so reenable. Value
- returned by this read will be previous value */
+ returned by this read will be previous value */
it87_write_value(data, IT87_REG_CONFIG,
- it87_read_value(data, IT87_REG_CONFIG) | 0x40);
+ it87_read_value(data, IT87_REG_CONFIG) | 0x40);
}
for (i = 0; i <= 7; i++) {
data->in[i] =
- it87_read_value(data, IT87_REG_VIN(i));
+ it87_read_value(data, IT87_REG_VIN(i));
data->in_min[i] =
- it87_read_value(data, IT87_REG_VIN_MIN(i));
+ it87_read_value(data, IT87_REG_VIN_MIN(i));
data->in_max[i] =
- it87_read_value(data, IT87_REG_VIN_MAX(i));
+ it87_read_value(data, IT87_REG_VIN_MAX(i));
}
/* in8 (battery) has no limit registers */
- data->in[8] =
- it87_read_value(data, IT87_REG_VIN(8));
+ data->in[8] = it87_read_value(data, IT87_REG_VIN(8));
for (i = 0; i < 5; i++) {
/* Skip disabled fans */
continue;
data->fan_min[i] =
- it87_read_value(data, IT87_REG_FAN_MIN[i]);
+ it87_read_value(data, IT87_REG_FAN_MIN[i]);
data->fan[i] = it87_read_value(data,
IT87_REG_FAN[i]);
/* Add high byte if in 16-bit mode */
}
for (i = 0; i < 3; i++) {
data->temp[i] =
- it87_read_value(data, IT87_REG_TEMP(i));
+ it87_read_value(data, IT87_REG_TEMP(i));
data->temp_high[i] =
- it87_read_value(data, IT87_REG_TEMP_HIGH(i));
+ it87_read_value(data, IT87_REG_TEMP_HIGH(i));
data->temp_low[i] =
- it87_read_value(data, IT87_REG_TEMP_LOW(i));
+ it87_read_value(data, IT87_REG_TEMP_LOW(i));
}
/* Newer chips don't have clock dividers */
it87_read_value(data, IT87_REG_ALARM1) |
(it87_read_value(data, IT87_REG_ALARM2) << 8) |
(it87_read_value(data, IT87_REG_ALARM3) << 16);
+ data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);
+
data->fan_main_ctrl = it87_read_value(data,
IT87_REG_FAN_MAIN_CTRL);
data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL);
+ for (i = 0; i < 3; i++)
+ it87_update_pwm_ctrl(data, i);
data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE);
/* The 8705 does not have VID capability.
static int __init sm_it87_init(void)
{
int err;
- unsigned short isa_address=0;
+ unsigned short isa_address = 0;
struct it87_sio_data sio_data;
memset(&sio_data, 0, sizeof(struct it87_sio_data));
return err;
err = it87_device_add(isa_address, &sio_data);
- if (err){
+ if (err) {
platform_driver_unregister(&it87_driver);
return err;
}
module_param(update_vbat, bool, 0);
MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value");
module_param(fix_pwm_polarity, bool, 0);
-MODULE_PARM_DESC(fix_pwm_polarity, "Force PWM polarity to active high (DANGEROUS)");
+MODULE_PARM_DESC(fix_pwm_polarity,
+ "Force PWM polarity to active high (DANGEROUS)");
MODULE_LICENSE("GPL");
module_init(sm_it87_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff