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Commit cdcaeceb authored by Guenter Roeck's avatar Guenter Roeck
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hwmon: (nct6775) Add support for automatic fan control 

Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 77eb5b37
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Showing with 1161 additions and 7 deletions
Documentation/hwmon/nct6775
View file @ cdcaeceb
......@@ -87,6 +87,75 @@ pwm[1-5]_mode - controls if output is PWM or DC level
* 0 DC output
* 1 PWM output
Common fan control attributes
-----------------------------
pwm[1-5]_temp_sel Temperature source. Value is temperature sensor index.
For example, select '1' for temp1_input.
Thermal Cruise mode (2)
-----------------------
If the temperature is in the range defined by:
pwm[1-5]_target_temp Target temperature, unit millidegree Celsius
(range 0 - 127000)
pwm[1-5]_temp_tolerance
Target temperature tolerance, unit millidegree Celsius
there are no changes to fan speed. Once the temperature leaves the interval, fan
speed increases (if temperature is higher that desired) or decreases (if
temperature is lower than desired), using the following limits and time
intervals.
pwm[1-5]_start fan pwm start value (range 1 - 255), to start fan
when the temperature is above defined range.
pwm[1-5]_floor lowest fan pwm (range 0 - 255) if temperature is below
the defined range. If set to 0, the fan is expected to
stop if the temperature is below the defined range.
pwm[1-5]_step_up_time milliseconds before fan speed is increased
pwm[1-5]_step_down_time milliseconds before fan speed is decreased
pwm[1-5]_stop_time how many milliseconds must elapse to switch
corresponding fan off (when the temperature was below
defined range).
Speed Cruise mode (3)
---------------------
This modes tries to keep the fan speed constant.
fan[1-5]_target Target fan speed
fan[1-5]_tolerance
Target speed tolerance
Untested; use at your own risk.
Smart Fan IV mode (5)
---------------------
This mode offers multiple slopes to control the fan speed. The slopes can be
controlled by setting the pwm and temperature attributes. When the temperature
rises, the chip will calculate the DC/PWM output based on the current slope.
There are up to seven data points depending on the chip type. Subsequent data
points should be set to higher temperatures and higher pwm values to achieve
higher fan speeds with increasing temperature. The last data point reflects
critical temperature mode, in which the fans should run at full speed.
pwm[1-5]_auto_point[1-7]_pwm
pwm value to be set if temperature reaches matching
temperature range.
pwm[1-5]_auto_point[1-7]_temp
Temperature over which the matching pwm is enabled.
pwm[1-5]_temp_tolerance
Temperature tolerance, unit millidegree Celsius
pwm[1-5]_crit_temp_tolerance
Temperature tolerance for critical temperature,
unit millidegree Celsius
pwm[1-5]_step_up_time milliseconds before fan speed is increased
pwm[1-5]_step_down_time milliseconds before fan speed is decreased
Usage Notes
-----------
......
drivers/hwmon/nct6775.c
View file @ cdcaeceb
......@@ -215,8 +215,23 @@ static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 };
static const u8 NCT6775_REG_PWM_MODE[] = { 0x04, 0x04, 0x12 };
static const u8 NCT6775_PWM_MODE_MASK[] = { 0x01, 0x02, 0x01 };
static const u16 NCT6775_REG_FAN_MODE[] = { 0x102, 0x202, 0x302, 0x802, 0x902 };
/* Advanced Fan control, some values are common for all fans */
static const u16 NCT6775_REG_TARGET[] = { 0x101, 0x201, 0x301, 0x801, 0x901 };
static const u16 NCT6775_REG_FAN_MODE[] = { 0x102, 0x202, 0x302, 0x802, 0x902 };
static const u16 NCT6775_REG_FAN_STEP_DOWN_TIME[] = {
0x103, 0x203, 0x303, 0x803, 0x903 };
static const u16 NCT6775_REG_FAN_STEP_UP_TIME[] = {
0x104, 0x204, 0x304, 0x804, 0x904 };
static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = {
0x105, 0x205, 0x305, 0x805, 0x905 };
static const u16 NCT6775_REG_FAN_START_OUTPUT[]
= { 0x106, 0x206, 0x306, 0x806, 0x906 };
static const u16 NCT6775_REG_FAN_MAX_OUTPUT[] = { 0x10a, 0x20a, 0x30a };
static const u16 NCT6775_REG_FAN_STEP_OUTPUT[] = { 0x10b, 0x20b, 0x30b };
static const u16 NCT6775_REG_FAN_STOP_TIME[] = {
0x107, 0x207, 0x307, 0x807, 0x907 };
static const u16 NCT6775_REG_PWM[] = { 0x109, 0x209, 0x309, 0x809, 0x909 };
static const u16 NCT6775_REG_PWM_READ[] = { 0x01, 0x03, 0x11, 0x13, 0x15 };
......@@ -237,8 +252,26 @@ static const u16 NCT6775_REG_TEMP_OVER[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
static const u16 NCT6775_REG_TEMP_SOURCE[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
0x621, 0x622, 0x623, 0x624, 0x625, 0x626 };
static const u16 NCT6775_REG_TEMP_SEL[] = {
0x100, 0x200, 0x300, 0x800, 0x900 };
static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 };
static const u16 NCT6775_REG_AUTO_TEMP[] = {
0x121, 0x221, 0x321, 0x821, 0x921 };
static const u16 NCT6775_REG_AUTO_PWM[] = {
0x127, 0x227, 0x327, 0x827, 0x927 };
#define NCT6775_AUTO_TEMP(data, nr, p) ((data)->REG_AUTO_TEMP[nr] + (p))
#define NCT6775_AUTO_PWM(data, nr, p) ((data)->REG_AUTO_PWM[nr] + (p))
static const u16 NCT6775_REG_CRITICAL_ENAB[] = { 0x134, 0x234, 0x334 };
static const u16 NCT6775_REG_CRITICAL_TEMP[] = {
0x135, 0x235, 0x335, 0x835, 0x935 };
static const u16 NCT6775_REG_CRITICAL_TEMP_TOLERANCE[] = {
0x138, 0x238, 0x338, 0x838, 0x938 };
static const char *const nct6775_temp_label[] = {
"",
"SYSTIN",
......@@ -281,6 +314,9 @@ static const s8 NCT6776_ALARM_BITS[] = {
4, 5, 13, -1, -1, -1, /* temp1..temp6 */
12, 9 }; /* intrusion0, intrusion1 */
static const u16 NCT6776_REG_TOLERANCE_H[] = {
0x10c, 0x20c, 0x30c, 0x80c, 0x90c };
static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0 };
static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0 };
......@@ -344,6 +380,11 @@ static const u16 NCT6779_REG_FAN[] = { 0x4b0, 0x4b2, 0x4b4, 0x4b6, 0x4b8 };
static const u16 NCT6779_REG_FAN_PULSES[] = {
0x644, 0x645, 0x646, 0x647, 0x648 };
static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = {
0x136, 0x236, 0x336, 0x836, 0x936 };
static const u16 NCT6779_REG_CRITICAL_PWM[] = {
0x137, 0x237, 0x337, 0x837, 0x937 };
static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 };
static const u16 NCT6779_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
0x18, 0x152 };
......@@ -412,6 +453,18 @@ static int pwm_enable_to_reg(enum pwm_enable mode)
* Conversions
*/
/* 1 is DC mode, output in ms */
static unsigned int step_time_from_reg(u8 reg, u8 mode)
{
return mode ? 400 * reg : 100 * reg;
}
static u8 step_time_to_reg(unsigned int msec, u8 mode)
{
return clamp_val((mode ? (msec + 200) / 400 :
(msec + 50) / 100), 1, 255);
}
static unsigned int fan_from_reg8(u16 reg, unsigned int divreg)
{
if (reg == 0 || reg == 255)
......@@ -444,6 +497,14 @@ static unsigned int fan_from_reg16(u16 reg, unsigned int divreg)
return 1350000U / (reg << divreg);
}
static u16 fan_to_reg(u32 fan, unsigned int divreg)
{
if (!fan)
return 0;
return (1350000U / fan) >> divreg;
}
static inline unsigned int
div_from_reg(u8 reg)
{
......@@ -498,18 +559,31 @@ struct nct6775_data {
const u16 *REG_VIN;
const u16 *REG_IN_MINMAX[2];
const u16 *REG_TARGET;
const u16 *REG_FAN;
const u16 *REG_FAN_MODE;
const u16 *REG_FAN_MIN;
const u16 *REG_FAN_PULSES;
const u16 *REG_FAN_TIME[3];
const u16 *REG_TOLERANCE_H;
const u8 *REG_PWM_MODE;
const u8 *PWM_MODE_MASK;
const u16 *REG_PWM[1]; /* [0]=pwm */
const u16 *REG_PWM[5]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
* [3]=pwm_max, [4]=pwm_step
*/
const u16 *REG_PWM_READ;
const u16 *REG_AUTO_TEMP;
const u16 *REG_AUTO_PWM;
const u16 *REG_CRITICAL_TEMP;
const u16 *REG_CRITICAL_TEMP_TOLERANCE;
const u16 *REG_TEMP_SOURCE; /* temp register sources */
const u16 *REG_TEMP_SEL;
const u16 *REG_TEMP_OFFSET;
const u16 *REG_ALARM;
......@@ -551,7 +625,26 @@ struct nct6775_data {
* 4->SmartFan III
* 5->enhanced variable thermal cruise (SmartFan IV)
*/
u8 pwm[1][5]; /* [0]=pwm */
u8 pwm[5][5]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
* [3]=pwm_max, [4]=pwm_step
*/
u8 target_temp[5];
u8 target_temp_mask;
u32 target_speed[5];
u32 target_speed_tolerance[5];
u8 speed_tolerance_limit;
u8 temp_tolerance[2][5];
u8 tolerance_mask;
u8 fan_time[3][5]; /* 0 = stop_time, 1 = step_up, 2 = step_down */
/* Automatic fan speed control registers */
int auto_pwm_num;
u8 auto_pwm[5][7];
u8 auto_temp[5][7];
u8 pwm_temp_sel[5];
u8 vid;
u8 vrm;
......@@ -833,7 +926,7 @@ static void nct6775_update_pwm(struct device *dev)
{
struct nct6775_data *data = dev_get_drvdata(dev);
int i, j;
int fanmodecfg;
int fanmodecfg, reg;
bool duty_is_dc;
for (i = 0; i < data->pwm_num; i++) {
......@@ -856,6 +949,96 @@ static void nct6775_update_pwm(struct device *dev)
data->pwm_enable[i] = reg_to_pwm_enable(data->pwm[0][i],
(fanmodecfg >> 4) & 7);
if (!data->temp_tolerance[0][i] ||
data->pwm_enable[i] != speed_cruise)
data->temp_tolerance[0][i] = fanmodecfg & 0x0f;
if (!data->target_speed_tolerance[i] ||
data->pwm_enable[i] == speed_cruise) {
u8 t = fanmodecfg & 0x0f;
if (data->REG_TOLERANCE_H) {
t |= (nct6775_read_value(data,
data->REG_TOLERANCE_H[i]) & 0x70) >> 1;
}
data->target_speed_tolerance[i] = t;
}
data->temp_tolerance[1][i] =
nct6775_read_value(data,
data->REG_CRITICAL_TEMP_TOLERANCE[i]);
reg = nct6775_read_value(data, data->REG_TEMP_SEL[i]);
data->pwm_temp_sel[i] = reg & 0x1f;
/* If fan can stop, report floor as 0 */
if (reg & 0x80)
data->pwm[2][i] = 0;
}
}
static void nct6775_update_pwm_limits(struct device *dev)
{
struct nct6775_data *data = dev_get_drvdata(dev);
int i, j;
u8 reg;
u16 reg_t;
for (i = 0; i < data->pwm_num; i++) {
if (!(data->has_pwm & (1 << i)))
continue;
for (j = 0; j < 3; j++) {
data->fan_time[j][i] =
nct6775_read_value(data, data->REG_FAN_TIME[j][i]);
}
reg_t = nct6775_read_value(data, data->REG_TARGET[i]);
/* Update only in matching mode or if never updated */
if (!data->target_temp[i] ||
data->pwm_enable[i] == thermal_cruise)
data->target_temp[i] = reg_t & data->target_temp_mask;
if (!data->target_speed[i] ||
data->pwm_enable[i] == speed_cruise) {
if (data->REG_TOLERANCE_H) {
reg_t |= (nct6775_read_value(data,
data->REG_TOLERANCE_H[i]) & 0x0f) << 8;
}
data->target_speed[i] = reg_t;
}
for (j = 0; j < data->auto_pwm_num; j++) {
data->auto_pwm[i][j] =
nct6775_read_value(data,
NCT6775_AUTO_PWM(data, i, j));
data->auto_temp[i][j] =
nct6775_read_value(data,
NCT6775_AUTO_TEMP(data, i, j));
}
/* critical auto_pwm temperature data */
data->auto_temp[i][data->auto_pwm_num] =
nct6775_read_value(data, data->REG_CRITICAL_TEMP[i]);
switch (data->kind) {
case nct6775:
reg = nct6775_read_value(data,
NCT6775_REG_CRITICAL_ENAB[i]);
data->auto_pwm[i][data->auto_pwm_num] =
(reg & 0x02) ? 0xff : 0x00;
break;
case nct6776:
data->auto_pwm[i][data->auto_pwm_num] = 0xff;
break;
case nct6779:
reg = nct6775_read_value(data,
NCT6779_REG_CRITICAL_PWM_ENABLE[i]);
if (reg & 1)
data->auto_pwm[i][data->auto_pwm_num] =
nct6775_read_value(data,
NCT6779_REG_CRITICAL_PWM[i]);
else
data->auto_pwm[i][data->auto_pwm_num] = 0xff;
break;
}
}
}
......@@ -905,6 +1088,7 @@ static struct nct6775_data *nct6775_update_device(struct device *dev)
}
nct6775_update_pwm(dev);
nct6775_update_pwm_limits(dev);
/* Measured temperatures and limits */
for (i = 0; i < NUM_TEMP; i++) {
......@@ -1754,20 +1938,91 @@ store_pwm(struct device *dev, struct device_attribute *attr, const char *buf,
int nr = sattr->nr;
int index = sattr->index;
unsigned long val;
int minval[5] = { 0, 1, 1, data->pwm[2][nr], 0 };
int maxval[5]
= { 255, 255, data->pwm[3][nr] ? : 255, 255, 255 };
int err;
u8 reg;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
val = clamp_val(val, 0, 255);
val = clamp_val(val, minval[index], maxval[index]);
mutex_lock(&data->update_lock);
data->pwm[index][nr] = val;
nct6775_write_value(data, data->REG_PWM[index][nr], val);
if (index == 2) { /* floor: disable if val == 0 */
reg = nct6775_read_value(data, data->REG_TEMP_SEL[nr]);
reg &= 0x7f;
if (val)
reg |= 0x80;
nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg);
}
mutex_unlock(&data->update_lock);
return count;
}
/* Returns 0 if OK, -EINVAL otherwise */
static int check_trip_points(struct nct6775_data *data, int nr)
{
int i;
for (i = 0; i < data->auto_pwm_num - 1; i++) {
if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
return -EINVAL;
}
for (i = 0; i < data->auto_pwm_num - 1; i++) {
if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
return -EINVAL;
}
/* validate critical temperature and pwm if enabled (pwm > 0) */
if (data->auto_pwm[nr][data->auto_pwm_num]) {
if (data->auto_temp[nr][data->auto_pwm_num - 1] >
data->auto_temp[nr][data->auto_pwm_num] ||
data->auto_pwm[nr][data->auto_pwm_num - 1] >
data->auto_pwm[nr][data->auto_pwm_num])
return -EINVAL;
}
return 0;
}
static void pwm_update_registers(struct nct6775_data *data, int nr)
{
u8 reg;
switch (data->pwm_enable[nr]) {
case off:
case manual:
break;
case speed_cruise:
reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
reg = (reg & ~data->tolerance_mask) |
(data->target_speed_tolerance[nr] & data->tolerance_mask);
nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
nct6775_write_value(data, data->REG_TARGET[nr],
data->target_speed[nr] & 0xff);
if (data->REG_TOLERANCE_H) {
reg = (data->target_speed[nr] >> 8) & 0x0f;
reg |= (data->target_speed_tolerance[nr] & 0x38) << 1;
nct6775_write_value(data,
data->REG_TOLERANCE_H[nr],
reg);
}
break;
case thermal_cruise:
nct6775_write_value(data, data->REG_TARGET[nr],
data->target_temp[nr]);
/* intentional */
default:
reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
reg = (reg & ~data->tolerance_mask) |
data->temp_tolerance[0][nr];
nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
break;
}
}
static ssize_t
show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
{
......@@ -1798,6 +2053,12 @@ store_pwm_enable(struct device *dev, struct device_attribute *attr,
if (val == sf3 && data->kind != nct6775)
return -EINVAL;
if (val == sf4 && check_trip_points(data, nr)) {
dev_err(dev, "Inconsistent trip points, not switching to SmartFan IV mode\n");
dev_err(dev, "Adjust trip points and try again\n");
return -EINVAL;
}
mutex_lock(&data->update_lock);
data->pwm_enable[nr] = val;
if (val == off) {
......@@ -1807,6 +2068,7 @@ store_pwm_enable(struct device *dev, struct device_attribute *attr,
data->pwm[0][nr] = 255;
nct6775_write_value(data, data->REG_PWM[0][nr], 255);
}
pwm_update_registers(data, nr);
reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
reg &= 0x0f;
reg |= pwm_enable_to_reg(val) << 4;
......@@ -1815,6 +2077,235 @@ store_pwm_enable(struct device *dev, struct device_attribute *attr,
return count;
}
static ssize_t
show_pwm_temp_sel(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int i, src, sel = 0;
src = data->pwm_temp_sel[sattr->index];
for (i = 0; i < NUM_TEMP; i++) {
if (!(data->have_temp & (1 << i)))
continue;
if (src == data->temp_src[i]) {
sel = i + 1;
break;
}
}
return sprintf(buf, "%d\n", sel);
}
static ssize_t
store_pwm_temp_sel(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
unsigned long val;
int err, reg, src;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
if (val == 0 || val > NUM_TEMP)
return -EINVAL;
if (!(data->have_temp & (1 << (val - 1))) || !data->temp_src[val - 1])
return -EINVAL;
mutex_lock(&data->update_lock);
src = data->temp_src[val - 1];
data->pwm_temp_sel[nr] = src;
reg = nct6775_read_value(data, data->REG_TEMP_SEL[nr]);
reg &= 0xe0;
reg |= src;
nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg);
mutex_unlock(&data->update_lock);
return count;
}
static ssize_t
show_target_temp(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
return sprintf(buf, "%d\n", data->target_temp[sattr->index] * 1000);
}
static ssize_t
store_target_temp(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
unsigned long val;
int err;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0,
data->target_temp_mask);
mutex_lock(&data->update_lock);
data->target_temp[nr] = val;
pwm_update_registers(data, nr);
mutex_unlock(&data->update_lock);
return count;
}
static ssize_t
show_target_speed(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
return sprintf(buf, "%d\n",
fan_from_reg16(data->target_speed[nr],
data->fan_div[nr]));
}
static ssize_t
store_target_speed(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
unsigned long val;
int err;
u16 speed;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
val = clamp_val(val, 0, 1350000U);
speed = fan_to_reg(val, data->fan_div[nr]);
mutex_lock(&data->update_lock);
data->target_speed[nr] = speed;
pwm_update_registers(data, nr);
mutex_unlock(&data->update_lock);
return count;
}
static ssize_t
show_temp_tolerance(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int index = sattr->index;
return sprintf(buf, "%d\n", data->temp_tolerance[index][nr] * 1000);
}
static ssize_t
store_temp_tolerance(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int index = sattr->index;
unsigned long val;
int err;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
/* Limit tolerance as needed */
val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, data->tolerance_mask);
mutex_lock(&data->update_lock);
data->temp_tolerance[index][nr] = val;
if (index)
pwm_update_registers(data, nr);
else
nct6775_write_value(data,
data->REG_CRITICAL_TEMP_TOLERANCE[nr],
val);
mutex_unlock(&data->update_lock);
return count;
}
/*
* Fan speed tolerance is a tricky beast, since the associated register is
* a tick counter, but the value is reported and configured as rpm.
* Compute resulting low and high rpm values and report the difference.
*/
static ssize_t
show_speed_tolerance(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
int low = data->target_speed[nr] - data->target_speed_tolerance[nr];
int high = data->target_speed[nr] + data->target_speed_tolerance[nr];
int tolerance;
if (low <= 0)
low = 1;
if (high > 0xffff)
high = 0xffff;
if (high < low)
high = low;
tolerance = (fan_from_reg16(low, data->fan_div[nr])
- fan_from_reg16(high, data->fan_div[nr])) / 2;
return sprintf(buf, "%d\n", tolerance);
}
static ssize_t
store_speed_tolerance(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
unsigned long val;
int err;
int low, high;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
high = fan_from_reg16(data->target_speed[nr],
data->fan_div[nr]) + val;
low = fan_from_reg16(data->target_speed[nr],
data->fan_div[nr]) - val;
if (low <= 0)
low = 1;
if (high < low)
high = low;
val = (fan_to_reg(low, data->fan_div[nr]) -
fan_to_reg(high, data->fan_div[nr])) / 2;
/* Limit tolerance as needed */
val = clamp_val(val, 0, data->speed_tolerance_limit);
mutex_lock(&data->update_lock);
data->target_speed_tolerance[nr] = val;
pwm_update_registers(data, nr);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR_2(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 0);
static SENSOR_DEVICE_ATTR_2(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1, 0);
static SENSOR_DEVICE_ATTR_2(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2, 0);
......@@ -1843,6 +2334,88 @@ static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
static SENSOR_DEVICE_ATTR(pwm5_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
store_pwm_enable, 4);
static SENSOR_DEVICE_ATTR(pwm1_temp_sel, S_IWUSR | S_IRUGO,
show_pwm_temp_sel, store_pwm_temp_sel, 0);
static SENSOR_DEVICE_ATTR(pwm2_temp_sel, S_IWUSR | S_IRUGO,
show_pwm_temp_sel, store_pwm_temp_sel, 1);
static SENSOR_DEVICE_ATTR(pwm3_temp_sel, S_IWUSR | S_IRUGO,
show_pwm_temp_sel, store_pwm_temp_sel, 2);
static SENSOR_DEVICE_ATTR(pwm4_temp_sel, S_IWUSR | S_IRUGO,
show_pwm_temp_sel, store_pwm_temp_sel, 3);
static SENSOR_DEVICE_ATTR(pwm5_temp_sel, S_IWUSR | S_IRUGO,
show_pwm_temp_sel, store_pwm_temp_sel, 4);
static SENSOR_DEVICE_ATTR(pwm1_target_temp, S_IWUSR | S_IRUGO, show_target_temp,
store_target_temp, 0);
static SENSOR_DEVICE_ATTR(pwm2_target_temp, S_IWUSR | S_IRUGO, show_target_temp,
store_target_temp, 1);
static SENSOR_DEVICE_ATTR(pwm3_target_temp, S_IWUSR | S_IRUGO, show_target_temp,
store_target_temp, 2);
static SENSOR_DEVICE_ATTR(pwm4_target_temp, S_IWUSR | S_IRUGO, show_target_temp,
store_target_temp, 3);
static SENSOR_DEVICE_ATTR(pwm5_target_temp, S_IWUSR | S_IRUGO, show_target_temp,
store_target_temp, 4);
static SENSOR_DEVICE_ATTR(fan1_target, S_IWUSR | S_IRUGO, show_target_speed,
store_target_speed, 0);
static SENSOR_DEVICE_ATTR(fan2_target, S_IWUSR | S_IRUGO, show_target_speed,
store_target_speed, 1);
static SENSOR_DEVICE_ATTR(fan3_target, S_IWUSR | S_IRUGO, show_target_speed,
store_target_speed, 2);
static SENSOR_DEVICE_ATTR(fan4_target, S_IWUSR | S_IRUGO, show_target_speed,
store_target_speed, 3);
static SENSOR_DEVICE_ATTR(fan5_target, S_IWUSR | S_IRUGO, show_target_speed,
store_target_speed, 4);
static SENSOR_DEVICE_ATTR(fan1_tolerance, S_IWUSR | S_IRUGO,
show_speed_tolerance, store_speed_tolerance, 0);
static SENSOR_DEVICE_ATTR(fan2_tolerance, S_IWUSR | S_IRUGO,
show_speed_tolerance, store_speed_tolerance, 1);
static SENSOR_DEVICE_ATTR(fan3_tolerance, S_IWUSR | S_IRUGO,
show_speed_tolerance, store_speed_tolerance, 2);
static SENSOR_DEVICE_ATTR(fan4_tolerance, S_IWUSR | S_IRUGO,
show_speed_tolerance, store_speed_tolerance, 3);
static SENSOR_DEVICE_ATTR(fan5_tolerance, S_IWUSR | S_IRUGO,
show_speed_tolerance, store_speed_tolerance, 4);
/* Smart Fan registers */
static ssize_t
show_fan_time(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int index = sattr->index;
return sprintf(buf, "%d\n",
step_time_from_reg(data->fan_time[index][nr],
data->pwm_mode[nr]));
}
static ssize_t
store_fan_time(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int index = sattr->index;
unsigned long val;
int err;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
val = step_time_to_reg(val, data->pwm_mode[nr]);
mutex_lock(&data->update_lock);
data->fan_time[index][nr] = val;
nct6775_write_value(data, data->REG_FAN_TIME[index][nr], val);
mutex_unlock(&data->update_lock);
return count;
}
static ssize_t
show_name(struct device *dev, struct device_attribute *attr, char *buf)
{
......@@ -1853,35 +2426,190 @@ show_name(struct device *dev, struct device_attribute *attr, char *buf)
static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
static struct attribute *nct6775_attributes_pwm[5][4] = {
static SENSOR_DEVICE_ATTR_2(pwm1_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
store_fan_time, 0, 0);
static SENSOR_DEVICE_ATTR_2(pwm2_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
store_fan_time, 1, 0);
static SENSOR_DEVICE_ATTR_2(pwm3_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
store_fan_time, 2, 0);
static SENSOR_DEVICE_ATTR_2(pwm4_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
store_fan_time, 3, 0);
static SENSOR_DEVICE_ATTR_2(pwm5_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
store_fan_time, 4, 0);
static SENSOR_DEVICE_ATTR_2(pwm1_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
store_fan_time, 0, 1);
static SENSOR_DEVICE_ATTR_2(pwm2_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
store_fan_time, 1, 1);
static SENSOR_DEVICE_ATTR_2(pwm3_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
store_fan_time, 2, 1);
static SENSOR_DEVICE_ATTR_2(pwm4_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
store_fan_time, 3, 1);
static SENSOR_DEVICE_ATTR_2(pwm5_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
store_fan_time, 4, 1);
static SENSOR_DEVICE_ATTR_2(pwm1_step_down_time, S_IWUSR | S_IRUGO,
show_fan_time, store_fan_time, 0, 2);
static SENSOR_DEVICE_ATTR_2(pwm2_step_down_time, S_IWUSR | S_IRUGO,
show_fan_time, store_fan_time, 1, 2);
static SENSOR_DEVICE_ATTR_2(pwm3_step_down_time, S_IWUSR | S_IRUGO,
show_fan_time, store_fan_time, 2, 2);
static SENSOR_DEVICE_ATTR_2(pwm4_step_down_time, S_IWUSR | S_IRUGO,
show_fan_time, store_fan_time, 3, 2);
static SENSOR_DEVICE_ATTR_2(pwm5_step_down_time, S_IWUSR | S_IRUGO,
show_fan_time, store_fan_time, 4, 2);
static SENSOR_DEVICE_ATTR_2(pwm1_start, S_IWUSR | S_IRUGO, show_pwm,
store_pwm, 0, 1);
static SENSOR_DEVICE_ATTR_2(pwm2_start, S_IWUSR | S_IRUGO, show_pwm,
store_pwm, 1, 1);
static SENSOR_DEVICE_ATTR_2(pwm3_start, S_IWUSR | S_IRUGO, show_pwm,
store_pwm, 2, 1);
static SENSOR_DEVICE_ATTR_2(pwm4_start, S_IWUSR | S_IRUGO, show_pwm,
store_pwm, 3, 1);
static SENSOR_DEVICE_ATTR_2(pwm5_start, S_IWUSR | S_IRUGO, show_pwm,
store_pwm, 4, 1);
static SENSOR_DEVICE_ATTR_2(pwm1_floor, S_IWUSR | S_IRUGO, show_pwm,
store_pwm, 0, 2);
static SENSOR_DEVICE_ATTR_2(pwm2_floor, S_IWUSR | S_IRUGO, show_pwm,
store_pwm, 1, 2);
static SENSOR_DEVICE_ATTR_2(pwm3_floor, S_IWUSR | S_IRUGO, show_pwm,
store_pwm, 2, 2);
static SENSOR_DEVICE_ATTR_2(pwm4_floor, S_IWUSR | S_IRUGO, show_pwm,
store_pwm, 3, 2);
static SENSOR_DEVICE_ATTR_2(pwm5_floor, S_IWUSR | S_IRUGO, show_pwm,
store_pwm, 4, 2);
static SENSOR_DEVICE_ATTR_2(pwm1_temp_tolerance, S_IWUSR | S_IRUGO,
show_temp_tolerance, store_temp_tolerance, 0, 0);
static SENSOR_DEVICE_ATTR_2(pwm2_temp_tolerance, S_IWUSR | S_IRUGO,
show_temp_tolerance, store_temp_tolerance, 1, 0);
static SENSOR_DEVICE_ATTR_2(pwm3_temp_tolerance, S_IWUSR | S_IRUGO,
show_temp_tolerance, store_temp_tolerance, 2, 0);
static SENSOR_DEVICE_ATTR_2(pwm4_temp_tolerance, S_IWUSR | S_IRUGO,
show_temp_tolerance, store_temp_tolerance, 3, 0);
static SENSOR_DEVICE_ATTR_2(pwm5_temp_tolerance, S_IWUSR | S_IRUGO,
show_temp_tolerance, store_temp_tolerance, 4, 0);
static SENSOR_DEVICE_ATTR_2(pwm1_crit_temp_tolerance, S_IWUSR | S_IRUGO,
show_temp_tolerance, store_temp_tolerance, 0, 1);
static SENSOR_DEVICE_ATTR_2(pwm2_crit_temp_tolerance, S_IWUSR | S_IRUGO,
show_temp_tolerance, store_temp_tolerance, 1, 1);
static SENSOR_DEVICE_ATTR_2(pwm3_crit_temp_tolerance, S_IWUSR | S_IRUGO,
show_temp_tolerance, store_temp_tolerance, 2, 1);
static SENSOR_DEVICE_ATTR_2(pwm4_crit_temp_tolerance, S_IWUSR | S_IRUGO,
show_temp_tolerance, store_temp_tolerance, 3, 1);
static SENSOR_DEVICE_ATTR_2(pwm5_crit_temp_tolerance, S_IWUSR | S_IRUGO,
show_temp_tolerance, store_temp_tolerance, 4, 1);
/* pwm_max is not supported on all chips */
static struct sensor_device_attribute_2 sda_pwm_max[] = {
SENSOR_ATTR_2(pwm1_max, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
0, 3),
SENSOR_ATTR_2(pwm2_max, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
1, 3),
SENSOR_ATTR_2(pwm3_max, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2, 3),
SENSOR_ATTR_2(pwm4_max, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
3, 3),
SENSOR_ATTR_2(pwm5_max, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
4, 3),
};
/* pwm_step is not supported on all chips */
static struct sensor_device_attribute_2 sda_pwm_step[] = {
SENSOR_ATTR_2(pwm1_step, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 4),
SENSOR_ATTR_2(pwm2_step, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1, 4),
SENSOR_ATTR_2(pwm3_step, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2, 4),
SENSOR_ATTR_2(pwm4_step, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3, 4),
SENSOR_ATTR_2(pwm5_step, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4, 4),
};
static struct attribute *nct6775_attributes_pwm[5][15] = {
{
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_pwm1_mode.dev_attr.attr,
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
&sensor_dev_attr_pwm1_temp_sel.dev_attr.attr,
&sensor_dev_attr_pwm1_temp_tolerance.dev_attr.attr,
&sensor_dev_attr_pwm1_crit_temp_tolerance.dev_attr.attr,
&sensor_dev_attr_pwm1_target_temp.dev_attr.attr,
&sensor_dev_attr_fan1_target.dev_attr.attr,
&sensor_dev_attr_fan1_tolerance.dev_attr.attr,
&sensor_dev_attr_pwm1_stop_time.dev_attr.attr,
&sensor_dev_attr_pwm1_step_up_time.dev_attr.attr,
&sensor_dev_attr_pwm1_step_down_time.dev_attr.attr,
&sensor_dev_attr_pwm1_start.dev_attr.attr,
&sensor_dev_attr_pwm1_floor.dev_attr.attr,
NULL
},
{
&sensor_dev_attr_pwm2.dev_attr.attr,
&sensor_dev_attr_pwm2_mode.dev_attr.attr,
&sensor_dev_attr_pwm2_enable.dev_attr.attr,
&sensor_dev_attr_pwm2_temp_sel.dev_attr.attr,
&sensor_dev_attr_pwm2_temp_tolerance.dev_attr.attr,
&sensor_dev_attr_pwm2_crit_temp_tolerance.dev_attr.attr,
&sensor_dev_attr_pwm2_target_temp.dev_attr.attr,
&sensor_dev_attr_fan2_target.dev_attr.attr,
&sensor_dev_attr_fan2_tolerance.dev_attr.attr,
&sensor_dev_attr_pwm2_stop_time.dev_attr.attr,
&sensor_dev_attr_pwm2_step_up_time.dev_attr.attr,
&sensor_dev_attr_pwm2_step_down_time.dev_attr.attr,
&sensor_dev_attr_pwm2_start.dev_attr.attr,
&sensor_dev_attr_pwm2_floor.dev_attr.attr,
NULL
},
{
&sensor_dev_attr_pwm3.dev_attr.attr,
&sensor_dev_attr_pwm3_mode.dev_attr.attr,
&sensor_dev_attr_pwm3_enable.dev_attr.attr,
&sensor_dev_attr_pwm3_temp_sel.dev_attr.attr,
&sensor_dev_attr_pwm3_temp_tolerance.dev_attr.attr,
&sensor_dev_attr_pwm3_crit_temp_tolerance.dev_attr.attr,
&sensor_dev_attr_pwm3_target_temp.dev_attr.attr,
&sensor_dev_attr_fan3_target.dev_attr.attr,
&sensor_dev_attr_fan3_tolerance.dev_attr.attr,
&sensor_dev_attr_pwm3_stop_time.dev_attr.attr,
&sensor_dev_attr_pwm3_step_up_time.dev_attr.attr,
&sensor_dev_attr_pwm3_step_down_time.dev_attr.attr,
&sensor_dev_attr_pwm3_start.dev_attr.attr,
&sensor_dev_attr_pwm3_floor.dev_attr.attr,
NULL
},
{
&sensor_dev_attr_pwm4.dev_attr.attr,
&sensor_dev_attr_pwm4_mode.dev_attr.attr,
&sensor_dev_attr_pwm4_enable.dev_attr.attr,
&sensor_dev_attr_pwm4_temp_sel.dev_attr.attr,
&sensor_dev_attr_pwm4_temp_tolerance.dev_attr.attr,
&sensor_dev_attr_pwm4_crit_temp_tolerance.dev_attr.attr,
&sensor_dev_attr_pwm4_target_temp.dev_attr.attr,
&sensor_dev_attr_fan4_target.dev_attr.attr,
&sensor_dev_attr_fan4_tolerance.dev_attr.attr,
&sensor_dev_attr_pwm4_stop_time.dev_attr.attr,
&sensor_dev_attr_pwm4_step_up_time.dev_attr.attr,
&sensor_dev_attr_pwm4_step_down_time.dev_attr.attr,
&sensor_dev_attr_pwm4_start.dev_attr.attr,
&sensor_dev_attr_pwm4_floor.dev_attr.attr,
NULL
},
{
&sensor_dev_attr_pwm5.dev_attr.attr,
&sensor_dev_attr_pwm5_mode.dev_attr.attr,
&sensor_dev_attr_pwm5_enable.dev_attr.attr,
&sensor_dev_attr_pwm5_temp_sel.dev_attr.attr,
&sensor_dev_attr_pwm5_temp_tolerance.dev_attr.attr,
&sensor_dev_attr_pwm5_crit_temp_tolerance.dev_attr.attr,
&sensor_dev_attr_pwm5_target_temp.dev_attr.attr,
&sensor_dev_attr_fan5_target.dev_attr.attr,
&sensor_dev_attr_fan5_tolerance.dev_attr.attr,
&sensor_dev_attr_pwm5_stop_time.dev_attr.attr,
&sensor_dev_attr_pwm5_step_up_time.dev_attr.attr,
&sensor_dev_attr_pwm5_step_down_time.dev_attr.attr,
&sensor_dev_attr_pwm5_start.dev_attr.attr,
&sensor_dev_attr_pwm5_floor.dev_attr.attr,
NULL
},
};
......@@ -1894,6 +2622,277 @@ static const struct attribute_group nct6775_group_pwm[5] = {
{ .attrs = nct6775_attributes_pwm[4] },
};
static ssize_t
show_auto_pwm(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
return sprintf(buf, "%d\n", data->auto_pwm[sattr->nr][sattr->index]);
}
static ssize_t
store_auto_pwm(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int point = sattr->index;
unsigned long val;
int err;
u8 reg;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
if (val > 255)
return -EINVAL;
if (point == data->auto_pwm_num) {
if (data->kind != nct6775 && !val)
return -EINVAL;
if (data->kind != nct6779 && val)
val = 0xff;
}
mutex_lock(&data->update_lock);
data->auto_pwm[nr][point] = val;
if (point < data->auto_pwm_num) {
nct6775_write_value(data,
NCT6775_AUTO_PWM(data, nr, point),
data->auto_pwm[nr][point]);
} else {
switch (data->kind) {
case nct6775:
/* disable if needed (pwm == 0) */
reg = nct6775_read_value(data,
NCT6775_REG_CRITICAL_ENAB[nr]);
if (val)
reg |= 0x02;
else
reg &= ~0x02;
nct6775_write_value(data, NCT6775_REG_CRITICAL_ENAB[nr],
reg);
break;
case nct6776:
break; /* always enabled, nothing to do */
case nct6779:
nct6775_write_value(data, NCT6779_REG_CRITICAL_PWM[nr],
val);
reg = nct6775_read_value(data,
NCT6779_REG_CRITICAL_PWM_ENABLE[nr]);
if (val == 255)
reg &= ~0x01;
else
reg |= 0x01;
nct6775_write_value(data,
NCT6779_REG_CRITICAL_PWM_ENABLE[nr],
reg);
break;
}
}
mutex_unlock(&data->update_lock);
return count;
}
static ssize_t
show_auto_temp(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int point = sattr->index;
/*
* We don't know for sure if the temperature is signed or unsigned.
* Assume it is unsigned.
*/
return sprintf(buf, "%d\n", data->auto_temp[nr][point] * 1000);
}
static ssize_t
store_auto_temp(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int point = sattr->index;
unsigned long val;
int err;
err = kstrtoul(buf, 10, &val);
if (err)
return err;
if (val > 255000)
return -EINVAL;
mutex_lock(&data->update_lock);
data->auto_temp[nr][point] = DIV_ROUND_CLOSEST(val, 1000);
if (point < data->auto_pwm_num) {
nct6775_write_value(data,
NCT6775_AUTO_TEMP(data, nr, point),
data->auto_temp[nr][point]);
} else {
nct6775_write_value(data, data->REG_CRITICAL_TEMP[nr],
data->auto_temp[nr][point]);
}
mutex_unlock(&data->update_lock);
return count;
}
/*
* The number of auto-point trip points is chip dependent.
* Need to check support while generating/removing attribute files.
*/
static struct sensor_device_attribute_2 sda_auto_pwm_arrays[] = {
SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 0, 0),
SENSOR_ATTR_2(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 0, 0),
SENSOR_ATTR_2(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 0, 1),
SENSOR_ATTR_2(pwm1_auto_point2_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 0, 1),
SENSOR_ATTR_2(pwm1_auto_point3_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 0, 2),
SENSOR_ATTR_2(pwm1_auto_point3_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 0, 2),
SENSOR_ATTR_2(pwm1_auto_point4_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 0, 3),
SENSOR_ATTR_2(pwm1_auto_point4_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 0, 3),
SENSOR_ATTR_2(pwm1_auto_point5_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 0, 4),
SENSOR_ATTR_2(pwm1_auto_point5_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 0, 4),
SENSOR_ATTR_2(pwm1_auto_point6_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 0, 5),
SENSOR_ATTR_2(pwm1_auto_point6_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 0, 5),
SENSOR_ATTR_2(pwm1_auto_point7_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 0, 6),
SENSOR_ATTR_2(pwm1_auto_point7_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 0, 6),
SENSOR_ATTR_2(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 1, 0),
SENSOR_ATTR_2(pwm2_auto_point1_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 1, 0),
SENSOR_ATTR_2(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 1, 1),
SENSOR_ATTR_2(pwm2_auto_point2_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 1, 1),
SENSOR_ATTR_2(pwm2_auto_point3_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 1, 2),
SENSOR_ATTR_2(pwm2_auto_point3_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 1, 2),
SENSOR_ATTR_2(pwm2_auto_point4_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 1, 3),
SENSOR_ATTR_2(pwm2_auto_point4_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 1, 3),
SENSOR_ATTR_2(pwm2_auto_point5_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 1, 4),
SENSOR_ATTR_2(pwm2_auto_point5_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 1, 4),
SENSOR_ATTR_2(pwm2_auto_point6_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 1, 5),
SENSOR_ATTR_2(pwm2_auto_point6_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 1, 5),
SENSOR_ATTR_2(pwm2_auto_point7_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 1, 6),
SENSOR_ATTR_2(pwm2_auto_point7_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 1, 6),
SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 2, 0),
SENSOR_ATTR_2(pwm3_auto_point1_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 2, 0),
SENSOR_ATTR_2(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 2, 1),
SENSOR_ATTR_2(pwm3_auto_point2_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 2, 1),
SENSOR_ATTR_2(pwm3_auto_point3_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 2, 2),
SENSOR_ATTR_2(pwm3_auto_point3_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 2, 2),
SENSOR_ATTR_2(pwm3_auto_point4_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 2, 3),
SENSOR_ATTR_2(pwm3_auto_point4_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 2, 3),
SENSOR_ATTR_2(pwm3_auto_point5_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 2, 4),
SENSOR_ATTR_2(pwm3_auto_point5_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 2, 4),
SENSOR_ATTR_2(pwm3_auto_point6_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 2, 5),
SENSOR_ATTR_2(pwm3_auto_point6_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 2, 5),
SENSOR_ATTR_2(pwm3_auto_point7_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 2, 6),
SENSOR_ATTR_2(pwm3_auto_point7_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 2, 6),
SENSOR_ATTR_2(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 3, 0),
SENSOR_ATTR_2(pwm4_auto_point1_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 3, 0),
SENSOR_ATTR_2(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 3, 1),
SENSOR_ATTR_2(pwm4_auto_point2_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 3, 1),
SENSOR_ATTR_2(pwm4_auto_point3_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 3, 2),
SENSOR_ATTR_2(pwm4_auto_point3_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 3, 2),
SENSOR_ATTR_2(pwm4_auto_point4_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 3, 3),
SENSOR_ATTR_2(pwm4_auto_point4_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 3, 3),
SENSOR_ATTR_2(pwm4_auto_point5_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 3, 4),
SENSOR_ATTR_2(pwm4_auto_point5_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 3, 4),
SENSOR_ATTR_2(pwm4_auto_point6_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 3, 5),
SENSOR_ATTR_2(pwm4_auto_point6_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 3, 5),
SENSOR_ATTR_2(pwm4_auto_point7_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 3, 6),
SENSOR_ATTR_2(pwm4_auto_point7_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 3, 6),
SENSOR_ATTR_2(pwm5_auto_point1_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 4, 0),
SENSOR_ATTR_2(pwm5_auto_point1_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 4, 0),
SENSOR_ATTR_2(pwm5_auto_point2_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 4, 1),
SENSOR_ATTR_2(pwm5_auto_point2_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 4, 1),
SENSOR_ATTR_2(pwm5_auto_point3_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 4, 2),
SENSOR_ATTR_2(pwm5_auto_point3_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 4, 2),
SENSOR_ATTR_2(pwm5_auto_point4_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 4, 3),
SENSOR_ATTR_2(pwm5_auto_point4_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 4, 3),
SENSOR_ATTR_2(pwm5_auto_point5_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 4, 4),
SENSOR_ATTR_2(pwm5_auto_point5_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 4, 4),
SENSOR_ATTR_2(pwm5_auto_point6_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 4, 5),
SENSOR_ATTR_2(pwm5_auto_point6_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 4, 5),
SENSOR_ATTR_2(pwm5_auto_point7_pwm, S_IWUSR | S_IRUGO,
show_auto_pwm, store_auto_pwm, 4, 6),
SENSOR_ATTR_2(pwm5_auto_point7_temp, S_IWUSR | S_IRUGO,
show_auto_temp, store_auto_temp, 4, 6),
};
static ssize_t
show_vid(struct device *dev, struct device_attribute *attr, char *buf)
{
......@@ -1969,6 +2968,15 @@ static void nct6775_device_remove_files(struct device *dev)
for (i = 0; i < data->pwm_num; i++)
sysfs_remove_group(&dev->kobj, &nct6775_group_pwm[i]);
for (i = 0; i < ARRAY_SIZE(sda_pwm_max); i++)
device_remove_file(dev, &sda_pwm_max[i].dev_attr);
for (i = 0; i < ARRAY_SIZE(sda_pwm_step); i++)
device_remove_file(dev, &sda_pwm_step[i].dev_attr);
for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++)
device_remove_file(dev, &sda_auto_pwm_arrays[i].dev_attr);
for (i = 0; i < data->in_num; i++)
sysfs_remove_group(&dev->kobj, &nct6775_group_in[i]);
......@@ -2161,6 +3169,7 @@ static int nct6775_probe(struct platform_device *pdev)
case nct6775:
data->in_num = 9;
data->pwm_num = 3;
data->auto_pwm_num = 6;
data->has_fan_div = true;
data->temp_fixed_num = 3;
......@@ -2168,6 +3177,9 @@ static int nct6775_probe(struct platform_device *pdev)
data->fan_from_reg = fan_from_reg16;
data->fan_from_reg_min = fan_from_reg8;
data->target_temp_mask = 0x7f;
data->tolerance_mask = 0x0f;
data->speed_tolerance_limit = 15;
data->temp_label = nct6775_temp_label;
data->temp_label_num = ARRAY_SIZE(nct6775_temp_label);
......@@ -2178,16 +3190,30 @@ static int nct6775_probe(struct platform_device *pdev)
data->REG_VIN = NCT6775_REG_IN;
data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
data->REG_TARGET = NCT6775_REG_TARGET;
data->REG_FAN = NCT6775_REG_FAN;
data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
data->REG_FAN_MIN = NCT6775_REG_FAN_MIN;
data->REG_FAN_PULSES = NCT6775_REG_FAN_PULSES;
data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
data->REG_PWM[0] = NCT6775_REG_PWM;
data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
data->REG_PWM[3] = NCT6775_REG_FAN_MAX_OUTPUT;
data->REG_PWM[4] = NCT6775_REG_FAN_STEP_OUTPUT;
data->REG_PWM_READ = NCT6775_REG_PWM_READ;
data->REG_PWM_MODE = NCT6775_REG_PWM_MODE;
data->PWM_MODE_MASK = NCT6775_PWM_MODE_MASK;
data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
data->REG_CRITICAL_TEMP_TOLERANCE
= NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
data->REG_ALARM = NCT6775_REG_ALARM;
reg_temp = NCT6775_REG_TEMP;
......@@ -2202,6 +3228,7 @@ static int nct6775_probe(struct platform_device *pdev)
case nct6776:
data->in_num = 9;
data->pwm_num = 3;
data->auto_pwm_num = 4;
data->has_fan_div = false;
data->temp_fixed_num = 3;
......@@ -2209,6 +3236,9 @@ static int nct6775_probe(struct platform_device *pdev)
data->fan_from_reg = fan_from_reg13;
data->fan_from_reg_min = fan_from_reg13;
data->target_temp_mask = 0xff;
data->tolerance_mask = 0x07;
data->speed_tolerance_limit = 63;
data->temp_label = nct6776_temp_label;
data->temp_label_num = ARRAY_SIZE(nct6776_temp_label);
......@@ -2219,16 +3249,29 @@ static int nct6775_probe(struct platform_device *pdev)
data->REG_VIN = NCT6775_REG_IN;
data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
data->REG_TARGET = NCT6775_REG_TARGET;
data->REG_FAN = NCT6775_REG_FAN;
data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
data->REG_FAN_PULSES = NCT6776_REG_FAN_PULSES;
data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
data->REG_PWM[0] = NCT6775_REG_PWM;
data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
data->REG_PWM_READ = NCT6775_REG_PWM_READ;
data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
data->REG_CRITICAL_TEMP_TOLERANCE
= NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
data->REG_ALARM = NCT6775_REG_ALARM;
reg_temp = NCT6775_REG_TEMP;
......@@ -2243,6 +3286,7 @@ static int nct6775_probe(struct platform_device *pdev)
case nct6779:
data->in_num = 15;
data->pwm_num = 5;
data->auto_pwm_num = 4;
data->has_fan_div = false;
data->temp_fixed_num = 6;
......@@ -2250,6 +3294,9 @@ static int nct6775_probe(struct platform_device *pdev)
data->fan_from_reg = fan_from_reg13;
data->fan_from_reg_min = fan_from_reg13;
data->target_temp_mask = 0xff;
data->tolerance_mask = 0x07;
data->speed_tolerance_limit = 63;
data->temp_label = nct6779_temp_label;
data->temp_label_num = ARRAY_SIZE(nct6779_temp_label);
......@@ -2260,16 +3307,29 @@ static int nct6775_probe(struct platform_device *pdev)
data->REG_VIN = NCT6779_REG_IN;
data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
data->REG_TARGET = NCT6775_REG_TARGET;
data->REG_FAN = NCT6779_REG_FAN;
data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
data->REG_PWM[0] = NCT6775_REG_PWM;
data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
data->REG_PWM_READ = NCT6775_REG_PWM_READ;
data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
data->REG_CRITICAL_TEMP_TOLERANCE
= NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET;
data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
data->REG_ALARM = NCT6779_REG_ALARM;
reg_temp = NCT6779_REG_TEMP;
......@@ -2484,6 +3544,31 @@ static int nct6775_probe(struct platform_device *pdev)
err = sysfs_create_group(&dev->kobj, &nct6775_group_pwm[i]);
if (err)
goto exit_remove;
if (data->REG_PWM[3]) {
err = device_create_file(dev,
&sda_pwm_max[i].dev_attr);
if (err)
goto exit_remove;
}
if (data->REG_PWM[4]) {
err = device_create_file(dev,
&sda_pwm_step[i].dev_attr);
if (err)
goto exit_remove;
}
}
for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++) {
struct sensor_device_attribute_2 *attr =
&sda_auto_pwm_arrays[i];
if (!(data->has_pwm & (1 << attr->nr)))
continue;
if (attr->index > data->auto_pwm_num)
continue;
err = device_create_file(dev, &attr->dev_attr);
if (err)
goto exit_remove;
}
for (i = 0; i < data->in_num; i++) {
......@@ -2518,7 +3603,7 @@ static int nct6775_probe(struct platform_device *pdev)
goto exit_remove;
}
err = device_create_file(dev,
&sda_fan_pulses[i].dev_attr);
&sda_fan_pulses[i].dev_attr);
if (err)
goto exit_remove;
}
......
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