* [PATCH v4 1/2] hwmon: (nct6775) Use sio_data in superio_*().
2021-09-12 21:02 [PATCH v4 0/2] hwmon: (nct6775) Support access via Asus WMI Denis Pauk
@ 2021-09-12 21:02 ` Denis Pauk
2021-09-12 21:02 ` [PATCH v4 2/2] hwmon: (nct6775) Support access via Asus WMI Denis Pauk
1 sibling, 0 replies; 3+ messages in thread
From: Denis Pauk @ 2021-09-12 21:02 UTC (permalink / raw)
Cc: pauk.denis, Bernhard Seibold, Andy Shevchenko, Guenter Roeck,
Jean Delvare, linux-hwmon, linux-kernel
Prepare for platform specific callbacks usage:
* Rearrange code for directly use struct nct6775_sio_data in superio_*()
functions.
* Use superio function pointers in nct6775_sio_data struct instead direct
calls.
* Use nct6775 function pointers in struct nct6775_data instead direct
calls.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204807
Signed-off-by: Denis Pauk <pauk.denis@gmail.com>
Co-developed-by: Bernhard Seibold <mail@bernhard-seibold.de>
Signed-off-by: Bernhard Seibold <mail@bernhard-seibold.de>
Cc: Andy Shevchenko <andriy.shevchenko@intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
---
Changes in v4:
- Fix naming conflict with inb, outb by add sio prefix to callbacks in
nct6775_sio_data.
Changes in v3:
- Use nct6775 function pointers in struct nct6775_data instead direct calls.
- make function declarations one line.
Changes in v2:
- Split changes to separate patches.
- Rearrange code for directly use struct nct6775_sio_data in superio_*()
functions.
---
drivers/hwmon/nct6775.c | 465 +++++++++++++++++++++-------------------
1 file changed, 247 insertions(+), 218 deletions(-)
diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index 5bd15622a85f..d813a7478f59 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -133,30 +133,46 @@ MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 };
-static inline void
-superio_outb(int ioreg, int reg, int val)
+struct nct6775_sio_data {
+ int sioreg;
+ enum kinds kind;
+
+ /* superio_() callbacks */
+ void (*sio_outb)(struct nct6775_sio_data *sio_data, int reg, int val);
+ int (*sio_inb)(struct nct6775_sio_data *sio_data, int reg);
+ void (*sio_select)(struct nct6775_sio_data *sio_data, int ld);
+ int (*sio_enter)(struct nct6775_sio_data *sio_data);
+ void (*sio_exit)(struct nct6775_sio_data *sio_data);
+};
+
+static void superio_outb(struct nct6775_sio_data *sio_data, int reg, int val)
{
+ int ioreg = sio_data->sioreg;
+
outb(reg, ioreg);
outb(val, ioreg + 1);
}
-static inline int
-superio_inb(int ioreg, int reg)
+static int superio_inb(struct nct6775_sio_data *sio_data, int reg)
{
+ int ioreg = sio_data->sioreg;
+
outb(reg, ioreg);
return inb(ioreg + 1);
}
-static inline void
-superio_select(int ioreg, int ld)
+static void superio_select(struct nct6775_sio_data *sio_data, int ld)
{
+ int ioreg = sio_data->sioreg;
+
outb(SIO_REG_LDSEL, ioreg);
outb(ld, ioreg + 1);
}
-static inline int
-superio_enter(int ioreg)
+static int superio_enter(struct nct6775_sio_data *sio_data)
{
+ int ioreg = sio_data->sioreg;
+
/*
* Try to reserve <ioreg> and <ioreg + 1> for exclusive access.
*/
@@ -169,9 +185,10 @@ superio_enter(int ioreg)
return 0;
}
-static inline void
-superio_exit(int ioreg)
+static void superio_exit(struct nct6775_sio_data *sio_data)
{
+ int ioreg = sio_data->sioreg;
+
outb(0xaa, ioreg);
outb(0x02, ioreg);
outb(0x02, ioreg + 1);
@@ -1215,11 +1232,10 @@ struct nct6775_data {
u8 fandiv1;
u8 fandiv2;
u8 sio_reg_enable;
-};
-struct nct6775_sio_data {
- int sioreg;
- enum kinds kind;
+ /* nct6775_*() callbacks */
+ u16 (*read_value)(struct nct6775_data *data, u16 reg);
+ int (*write_value)(struct nct6775_data *data, u16 reg, u16 value);
};
struct sensor_device_template {
@@ -1459,7 +1475,7 @@ static u16 nct6775_read_temp(struct nct6775_data *data, u16 reg)
{
u16 res;
- res = nct6775_read_value(data, reg);
+ res = data->read_value(data, reg);
if (!is_word_sized(data, reg))
res <<= 8;
@@ -1470,7 +1486,7 @@ static int nct6775_write_temp(struct nct6775_data *data, u16 reg, u16 value)
{
if (!is_word_sized(data, reg))
value >>= 8;
- return nct6775_write_value(data, reg, value);
+ return data->write_value(data, reg, value);
}
/* This function assumes that the caller holds data->update_lock */
@@ -1480,24 +1496,24 @@ static void nct6775_write_fan_div(struct nct6775_data *data, int nr)
switch (nr) {
case 0:
- reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x70)
+ reg = (data->read_value(data, NCT6775_REG_FANDIV1) & 0x70)
| (data->fan_div[0] & 0x7);
- nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
+ data->write_value(data, NCT6775_REG_FANDIV1, reg);
break;
case 1:
- reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x7)
+ reg = (data->read_value(data, NCT6775_REG_FANDIV1) & 0x7)
| ((data->fan_div[1] << 4) & 0x70);
- nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
+ data->write_value(data, NCT6775_REG_FANDIV1, reg);
break;
case 2:
- reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x70)
+ reg = (data->read_value(data, NCT6775_REG_FANDIV2) & 0x70)
| (data->fan_div[2] & 0x7);
- nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
+ data->write_value(data, NCT6775_REG_FANDIV2, reg);
break;
case 3:
- reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x7)
+ reg = (data->read_value(data, NCT6775_REG_FANDIV2) & 0x7)
| ((data->fan_div[3] << 4) & 0x70);
- nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
+ data->write_value(data, NCT6775_REG_FANDIV2, reg);
break;
}
}
@@ -1512,10 +1528,10 @@ static void nct6775_update_fan_div(struct nct6775_data *data)
{
u8 i;
- i = nct6775_read_value(data, NCT6775_REG_FANDIV1);
+ i = data->read_value(data, NCT6775_REG_FANDIV1);
data->fan_div[0] = i & 0x7;
data->fan_div[1] = (i & 0x70) >> 4;
- i = nct6775_read_value(data, NCT6775_REG_FANDIV2);
+ i = data->read_value(data, NCT6775_REG_FANDIV2);
data->fan_div[2] = i & 0x7;
if (data->has_fan & BIT(3))
data->fan_div[3] = (i & 0x70) >> 4;
@@ -1563,11 +1579,11 @@ static void nct6775_init_fan_common(struct device *dev,
*/
for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
if (data->has_fan_min & BIT(i)) {
- reg = nct6775_read_value(data, data->REG_FAN_MIN[i]);
+ reg = data->read_value(data, data->REG_FAN_MIN[i]);
if (!reg)
- nct6775_write_value(data, data->REG_FAN_MIN[i],
- data->has_fan_div ? 0xff
- : 0xff1f);
+ data->write_value(data, data->REG_FAN_MIN[i],
+ data->has_fan_div ? 0xff
+ : 0xff1f);
}
}
}
@@ -1611,8 +1627,8 @@ static void nct6775_select_fan_div(struct device *dev,
}
if (fan_min != data->fan_min[nr]) {
data->fan_min[nr] = fan_min;
- nct6775_write_value(data, data->REG_FAN_MIN[nr],
- fan_min);
+ data->write_value(data, data->REG_FAN_MIN[nr],
+ fan_min);
}
}
data->fan_div[nr] = fan_div;
@@ -1632,15 +1648,15 @@ static void nct6775_update_pwm(struct device *dev)
continue;
duty_is_dc = data->REG_PWM_MODE[i] &&
- (nct6775_read_value(data, data->REG_PWM_MODE[i])
+ (data->read_value(data, data->REG_PWM_MODE[i])
& data->PWM_MODE_MASK[i]);
data->pwm_mode[i] = !duty_is_dc;
- fanmodecfg = nct6775_read_value(data, data->REG_FAN_MODE[i]);
+ fanmodecfg = data->read_value(data, data->REG_FAN_MODE[i]);
for (j = 0; j < ARRAY_SIZE(data->REG_PWM); j++) {
if (data->REG_PWM[j] && data->REG_PWM[j][i]) {
data->pwm[j][i]
- = nct6775_read_value(data,
+ = data->read_value(data,
data->REG_PWM[j][i]);
}
}
@@ -1656,17 +1672,17 @@ static void nct6775_update_pwm(struct device *dev)
u8 t = fanmodecfg & 0x0f;
if (data->REG_TOLERANCE_H) {
- t |= (nct6775_read_value(data,
+ t |= (data->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]);
+ data->read_value(data,
+ data->REG_CRITICAL_TEMP_TOLERANCE[i]);
- reg = nct6775_read_value(data, data->REG_TEMP_SEL[i]);
+ reg = data->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)
@@ -1675,7 +1691,7 @@ static void nct6775_update_pwm(struct device *dev)
if (!data->REG_WEIGHT_TEMP_SEL[i])
continue;
- reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[i]);
+ reg = data->read_value(data, data->REG_WEIGHT_TEMP_SEL[i]);
data->pwm_weight_temp_sel[i] = reg & 0x1f;
/* If weight is disabled, report weight source as 0 */
if (!(reg & 0x80))
@@ -1684,8 +1700,8 @@ static void nct6775_update_pwm(struct device *dev)
/* Weight temp data */
for (j = 0; j < ARRAY_SIZE(data->weight_temp); j++) {
data->weight_temp[j][i]
- = nct6775_read_value(data,
- data->REG_WEIGHT_TEMP[j][i]);
+ = data->read_value(data,
+ data->REG_WEIGHT_TEMP[j][i]);
}
}
}
@@ -1703,10 +1719,10 @@ static void nct6775_update_pwm_limits(struct device *dev)
for (j = 0; j < ARRAY_SIZE(data->fan_time); j++) {
data->fan_time[j][i] =
- nct6775_read_value(data, data->REG_FAN_TIME[j][i]);
+ data->read_value(data, data->REG_FAN_TIME[j][i]);
}
- reg_t = nct6775_read_value(data, data->REG_TARGET[i]);
+ reg_t = data->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)
@@ -1714,7 +1730,7 @@ static void nct6775_update_pwm_limits(struct device *dev)
if (!data->target_speed[i] ||
data->pwm_enable[i] == speed_cruise) {
if (data->REG_TOLERANCE_H) {
- reg_t |= (nct6775_read_value(data,
+ reg_t |= (data->read_value(data,
data->REG_TOLERANCE_H[i]) & 0x0f) << 8;
}
data->target_speed[i] = reg_t;
@@ -1722,21 +1738,21 @@ static void nct6775_update_pwm_limits(struct device *dev)
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->read_value(data,
+ NCT6775_AUTO_PWM(data, i, j));
data->auto_temp[i][j] =
- nct6775_read_value(data,
- NCT6775_AUTO_TEMP(data, i, j));
+ data->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]);
+ data->read_value(data, data->REG_CRITICAL_TEMP[i]);
switch (data->kind) {
case nct6775:
- reg = nct6775_read_value(data,
- NCT6775_REG_CRITICAL_ENAB[i]);
+ reg = data->read_value(data,
+ NCT6775_REG_CRITICAL_ENAB[i]);
data->auto_pwm[i][data->auto_pwm_num] =
(reg & 0x02) ? 0xff : 0x00;
break;
@@ -1753,10 +1769,10 @@ static void nct6775_update_pwm_limits(struct device *dev)
case nct6796:
case nct6797:
case nct6798:
- reg = nct6775_read_value(data,
+ reg = data->read_value(data,
data->REG_CRITICAL_PWM_ENABLE[i]);
if (reg & data->CRITICAL_PWM_ENABLE_MASK)
- reg = nct6775_read_value(data,
+ reg = data->read_value(data,
data->REG_CRITICAL_PWM[i]);
else
reg = 0xff;
@@ -1783,11 +1799,11 @@ static struct nct6775_data *nct6775_update_device(struct device *dev)
if (!(data->have_in & BIT(i)))
continue;
- data->in[i][0] = nct6775_read_value(data,
- data->REG_VIN[i]);
- data->in[i][1] = nct6775_read_value(data,
+ data->in[i][0] = data->read_value(data,
+ data->REG_VIN[i]);
+ data->in[i][1] = data->read_value(data,
data->REG_IN_MINMAX[0][i]);
- data->in[i][2] = nct6775_read_value(data,
+ data->in[i][2] = data->read_value(data,
data->REG_IN_MINMAX[1][i]);
}
@@ -1798,18 +1814,18 @@ static struct nct6775_data *nct6775_update_device(struct device *dev)
if (!(data->has_fan & BIT(i)))
continue;
- reg = nct6775_read_value(data, data->REG_FAN[i]);
+ reg = data->read_value(data, data->REG_FAN[i]);
data->rpm[i] = data->fan_from_reg(reg,
data->fan_div[i]);
if (data->has_fan_min & BIT(i))
- data->fan_min[i] = nct6775_read_value(data,
+ data->fan_min[i] = data->read_value(data,
data->REG_FAN_MIN[i]);
if (data->REG_FAN_PULSES[i]) {
data->fan_pulses[i] =
- (nct6775_read_value(data,
- data->REG_FAN_PULSES[i])
+ (data->read_value(data,
+ data->REG_FAN_PULSES[i])
>> data->FAN_PULSE_SHIFT[i]) & 0x03;
}
@@ -1833,7 +1849,7 @@ static struct nct6775_data *nct6775_update_device(struct device *dev)
!(data->have_temp_fixed & BIT(i)))
continue;
data->temp_offset[i]
- = nct6775_read_value(data, data->REG_TEMP_OFFSET[i]);
+ = data->read_value(data, data->REG_TEMP_OFFSET[i]);
}
data->alarms = 0;
@@ -1842,7 +1858,7 @@ static struct nct6775_data *nct6775_update_device(struct device *dev)
if (!data->REG_ALARM[i])
continue;
- alarm = nct6775_read_value(data, data->REG_ALARM[i]);
+ alarm = data->read_value(data, data->REG_ALARM[i]);
data->alarms |= ((u64)alarm) << (i << 3);
}
@@ -1852,7 +1868,7 @@ static struct nct6775_data *nct6775_update_device(struct device *dev)
if (!data->REG_BEEP[i])
continue;
- beep = nct6775_read_value(data, data->REG_BEEP[i]);
+ beep = data->read_value(data, data->REG_BEEP[i]);
data->beeps |= ((u64)beep) << (i << 3);
}
@@ -1894,8 +1910,8 @@ store_in_reg(struct device *dev, struct device_attribute *attr, const char *buf,
return err;
mutex_lock(&data->update_lock);
data->in[nr][index] = in_to_reg(val, nr);
- nct6775_write_value(data, data->REG_IN_MINMAX[index - 1][nr],
- data->in[nr][index]);
+ data->write_value(data, data->REG_IN_MINMAX[index - 1][nr],
+ data->in[nr][index]);
mutex_unlock(&data->update_lock);
return count;
}
@@ -1919,8 +1935,8 @@ static int find_temp_source(struct nct6775_data *data, int index, int count)
for (nr = 0; nr < count; nr++) {
int src;
- src = nct6775_read_value(data,
- data->REG_TEMP_SOURCE[nr]) & 0x1f;
+ src = data->read_value(data,
+ data->REG_TEMP_SOURCE[nr]) & 0x1f;
if (src == source)
return nr;
}
@@ -1981,8 +1997,8 @@ store_beep(struct device *dev, struct device_attribute *attr, const char *buf,
data->beeps |= (1ULL << nr);
else
data->beeps &= ~(1ULL << nr);
- nct6775_write_value(data, data->REG_BEEP[regindex],
- (data->beeps >> (regindex << 3)) & 0xff);
+ data->write_value(data, data->REG_BEEP[regindex],
+ (data->beeps >> (regindex << 3)) & 0xff);
mutex_unlock(&data->update_lock);
return count;
}
@@ -2037,8 +2053,8 @@ store_temp_beep(struct device *dev, struct device_attribute *attr,
data->beeps |= (1ULL << bit);
else
data->beeps &= ~(1ULL << bit);
- nct6775_write_value(data, data->REG_BEEP[regindex],
- (data->beeps >> (regindex << 3)) & 0xff);
+ data->write_value(data, data->REG_BEEP[regindex],
+ (data->beeps >> (regindex << 3)) & 0xff);
mutex_unlock(&data->update_lock);
return count;
@@ -2205,7 +2221,7 @@ store_fan_min(struct device *dev, struct device_attribute *attr,
}
write_min:
- nct6775_write_value(data, data->REG_FAN_MIN[nr], data->fan_min[nr]);
+ data->write_value(data, data->REG_FAN_MIN[nr], data->fan_min[nr]);
mutex_unlock(&data->update_lock);
return count;
@@ -2241,10 +2257,10 @@ store_fan_pulses(struct device *dev, struct device_attribute *attr,
mutex_lock(&data->update_lock);
data->fan_pulses[nr] = val & 3;
- reg = nct6775_read_value(data, data->REG_FAN_PULSES[nr]);
+ reg = data->read_value(data, data->REG_FAN_PULSES[nr]);
reg &= ~(0x03 << data->FAN_PULSE_SHIFT[nr]);
reg |= (val & 3) << data->FAN_PULSE_SHIFT[nr];
- nct6775_write_value(data, data->REG_FAN_PULSES[nr], reg);
+ data->write_value(data, data->REG_FAN_PULSES[nr], reg);
mutex_unlock(&data->update_lock);
return count;
@@ -2378,7 +2394,7 @@ store_temp_offset(struct device *dev, struct device_attribute *attr,
mutex_lock(&data->update_lock);
data->temp_offset[nr] = val;
- nct6775_write_value(data, data->REG_TEMP_OFFSET[nr], val);
+ data->write_value(data, data->REG_TEMP_OFFSET[nr], val);
mutex_unlock(&data->update_lock);
return count;
@@ -2417,8 +2433,8 @@ store_temp_type(struct device *dev, struct device_attribute *attr,
data->temp_type[nr] = val;
vbit = 0x02 << nr;
dbit = data->DIODE_MASK << nr;
- vbat = nct6775_read_value(data, data->REG_VBAT) & ~vbit;
- diode = nct6775_read_value(data, data->REG_DIODE) & ~dbit;
+ vbat = data->read_value(data, data->REG_VBAT) & ~vbit;
+ diode = data->read_value(data, data->REG_DIODE) & ~dbit;
switch (val) {
case 1: /* CPU diode (diode, current mode) */
vbat |= vbit;
@@ -2430,8 +2446,8 @@ store_temp_type(struct device *dev, struct device_attribute *attr,
case 4: /* thermistor */
break;
}
- nct6775_write_value(data, data->REG_VBAT, vbat);
- nct6775_write_value(data, data->REG_DIODE, diode);
+ data->write_value(data, data->REG_VBAT, vbat);
+ data->write_value(data, data->REG_DIODE, diode);
mutex_unlock(&data->update_lock);
return count;
@@ -2555,11 +2571,11 @@ store_pwm_mode(struct device *dev, struct device_attribute *attr,
mutex_lock(&data->update_lock);
data->pwm_mode[nr] = val;
- reg = nct6775_read_value(data, data->REG_PWM_MODE[nr]);
+ reg = data->read_value(data, data->REG_PWM_MODE[nr]);
reg &= ~data->PWM_MODE_MASK[nr];
if (!val)
reg |= data->PWM_MODE_MASK[nr];
- nct6775_write_value(data, data->REG_PWM_MODE[nr], reg);
+ data->write_value(data, data->REG_PWM_MODE[nr], reg);
mutex_unlock(&data->update_lock);
return count;
}
@@ -2578,7 +2594,7 @@ show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
* Otherwise, show the configured value.
*/
if (index == 0 && data->pwm_enable[nr] > manual)
- pwm = nct6775_read_value(data, data->REG_PWM_READ[nr]);
+ pwm = data->read_value(data, data->REG_PWM_READ[nr]);
else
pwm = data->pwm[index][nr];
@@ -2607,13 +2623,13 @@ store_pwm(struct device *dev, struct device_attribute *attr, const char *buf,
mutex_lock(&data->update_lock);
data->pwm[index][nr] = val;
- nct6775_write_value(data, data->REG_PWM[index][nr], val);
+ data->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 = data->read_value(data, data->REG_TEMP_SEL[nr]);
reg &= 0x7f;
if (val)
reg |= 0x80;
- nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg);
+ data->write_value(data, data->REG_TEMP_SEL[nr], reg);
}
mutex_unlock(&data->update_lock);
return count;
@@ -2652,29 +2668,29 @@ static void pwm_update_registers(struct nct6775_data *data, int nr)
case manual:
break;
case speed_cruise:
- reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
+ reg = data->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->write_value(data, data->REG_FAN_MODE[nr], reg);
+ data->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);
+ data->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]);
+ data->write_value(data, data->REG_TARGET[nr],
+ data->target_temp[nr]);
fallthrough;
default:
- reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
+ reg = data->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);
+ data->write_value(data, data->REG_FAN_MODE[nr], reg);
break;
}
}
@@ -2722,13 +2738,13 @@ store_pwm_enable(struct device *dev, struct device_attribute *attr,
* turn off pwm control: select manual mode, set pwm to maximum
*/
data->pwm[0][nr] = 255;
- nct6775_write_value(data, data->REG_PWM[0][nr], 255);
+ data->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 = data->read_value(data, data->REG_FAN_MODE[nr]);
reg &= 0x0f;
reg |= pwm_enable_to_reg(val) << 4;
- nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
+ data->write_value(data, data->REG_FAN_MODE[nr], reg);
mutex_unlock(&data->update_lock);
return count;
}
@@ -2781,10 +2797,10 @@ store_pwm_temp_sel(struct device *dev, struct device_attribute *attr,
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 = data->read_value(data, data->REG_TEMP_SEL[nr]);
reg &= 0xe0;
reg |= src;
- nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg);
+ data->write_value(data, data->REG_TEMP_SEL[nr], reg);
mutex_unlock(&data->update_lock);
return count;
@@ -2826,15 +2842,15 @@ store_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr,
if (val) {
src = data->temp_src[val - 1];
data->pwm_weight_temp_sel[nr] = src;
- reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]);
+ reg = data->read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]);
reg &= 0xe0;
reg |= (src | 0x80);
- nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);
+ data->write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);
} else {
data->pwm_weight_temp_sel[nr] = 0;
- reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]);
+ reg = data->read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]);
reg &= 0x7f;
- nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);
+ data->write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);
}
mutex_unlock(&data->update_lock);
@@ -2946,9 +2962,9 @@ store_temp_tolerance(struct device *dev, struct device_attribute *attr,
if (index)
pwm_update_registers(data, nr);
else
- nct6775_write_value(data,
- data->REG_CRITICAL_TEMP_TOLERANCE[nr],
- val);
+ data->write_value(data,
+ data->REG_CRITICAL_TEMP_TOLERANCE[nr],
+ val);
mutex_unlock(&data->update_lock);
return count;
}
@@ -3071,7 +3087,7 @@ store_weight_temp(struct device *dev, struct device_attribute *attr,
mutex_lock(&data->update_lock);
data->weight_temp[index][nr] = val;
- nct6775_write_value(data, data->REG_WEIGHT_TEMP[index][nr], val);
+ data->write_value(data, data->REG_WEIGHT_TEMP[index][nr], val);
mutex_unlock(&data->update_lock);
return count;
}
@@ -3120,7 +3136,7 @@ store_fan_time(struct device *dev, struct device_attribute *attr,
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);
+ data->write_value(data, data->REG_FAN_TIME[index][nr], val);
mutex_unlock(&data->update_lock);
return count;
}
@@ -3162,21 +3178,21 @@ store_auto_pwm(struct device *dev, struct device_attribute *attr,
mutex_lock(&data->update_lock);
data->auto_pwm[nr][point] = val;
if (point < data->auto_pwm_num) {
- nct6775_write_value(data,
+ data->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]);
+ reg = data->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);
+ data->write_value(data, NCT6775_REG_CRITICAL_ENAB[nr],
+ reg);
break;
case nct6776:
break; /* always enabled, nothing to do */
@@ -3190,17 +3206,17 @@ store_auto_pwm(struct device *dev, struct device_attribute *attr,
case nct6796:
case nct6797:
case nct6798:
- nct6775_write_value(data, data->REG_CRITICAL_PWM[nr],
+ data->write_value(data, data->REG_CRITICAL_PWM[nr],
val);
- reg = nct6775_read_value(data,
+ reg = data->read_value(data,
data->REG_CRITICAL_PWM_ENABLE[nr]);
if (val == 255)
reg &= ~data->CRITICAL_PWM_ENABLE_MASK;
else
reg |= data->CRITICAL_PWM_ENABLE_MASK;
- nct6775_write_value(data,
- data->REG_CRITICAL_PWM_ENABLE[nr],
- reg);
+ data->write_value(data,
+ data->REG_CRITICAL_PWM_ENABLE[nr],
+ reg);
break;
}
}
@@ -3243,11 +3259,11 @@ store_auto_temp(struct device *dev, struct device_attribute *attr,
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,
+ data->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->write_value(data, data->REG_CRITICAL_TEMP[nr],
data->auto_temp[nr][point]);
}
mutex_unlock(&data->update_lock);
@@ -3410,6 +3426,7 @@ clear_caseopen(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
+ struct nct6775_sio_data *sio_data = dev_get_platdata(dev);
int nr = to_sensor_dev_attr(attr)->index - INTRUSION_ALARM_BASE;
unsigned long val;
u8 reg;
@@ -3425,19 +3442,19 @@ clear_caseopen(struct device *dev, struct device_attribute *attr,
* The CR registers are the same for all chips, and not all chips
* support clearing the caseopen status through "regular" registers.
*/
- ret = superio_enter(data->sioreg);
+ ret = sio_data->sio_enter(sio_data);
if (ret) {
count = ret;
goto error;
}
- superio_select(data->sioreg, NCT6775_LD_ACPI);
- reg = superio_inb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr]);
+ sio_data->sio_select(sio_data, NCT6775_LD_ACPI);
+ reg = sio_data->sio_inb(sio_data, NCT6775_REG_CR_CASEOPEN_CLR[nr]);
reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr];
- superio_outb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
+ sio_data->sio_outb(sio_data, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
reg &= ~NCT6775_CR_CASEOPEN_CLR_MASK[nr];
- superio_outb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
- superio_exit(data->sioreg);
+ sio_data->sio_outb(sio_data, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
+ sio_data->sio_exit(sio_data);
data->valid = false; /* Force cache refresh */
error:
@@ -3506,9 +3523,9 @@ static inline void nct6775_init_device(struct nct6775_data *data)
/* Start monitoring if needed */
if (data->REG_CONFIG) {
- tmp = nct6775_read_value(data, data->REG_CONFIG);
+ tmp = data->read_value(data, data->REG_CONFIG);
if (!(tmp & 0x01))
- nct6775_write_value(data, data->REG_CONFIG, tmp | 0x01);
+ data->write_value(data, data->REG_CONFIG, tmp | 0x01);
}
/* Enable temperature sensors if needed */
@@ -3517,18 +3534,18 @@ static inline void nct6775_init_device(struct nct6775_data *data)
continue;
if (!data->reg_temp_config[i])
continue;
- tmp = nct6775_read_value(data, data->reg_temp_config[i]);
+ tmp = data->read_value(data, data->reg_temp_config[i]);
if (tmp & 0x01)
- nct6775_write_value(data, data->reg_temp_config[i],
+ data->write_value(data, data->reg_temp_config[i],
tmp & 0xfe);
}
/* Enable VBAT monitoring if needed */
- tmp = nct6775_read_value(data, data->REG_VBAT);
+ tmp = data->read_value(data, data->REG_VBAT);
if (!(tmp & 0x01))
- nct6775_write_value(data, data->REG_VBAT, tmp | 0x01);
+ data->write_value(data, data->REG_VBAT, tmp | 0x01);
- diode = nct6775_read_value(data, data->REG_DIODE);
+ diode = data->read_value(data, data->REG_DIODE);
for (i = 0; i < data->temp_fixed_num; i++) {
if (!(data->have_temp_fixed & BIT(i)))
@@ -3542,29 +3559,29 @@ static inline void nct6775_init_device(struct nct6775_data *data)
}
static void
-nct6775_check_fan_inputs(struct nct6775_data *data)
+nct6775_check_fan_inputs(struct nct6775_data *data,
+ struct nct6775_sio_data *sio_data)
{
bool fan3pin = false, fan4pin = false, fan4min = false;
bool fan5pin = false, fan6pin = false, fan7pin = false;
bool pwm3pin = false, pwm4pin = false, pwm5pin = false;
bool pwm6pin = false, pwm7pin = false;
- int sioreg = data->sioreg;
/* Store SIO_REG_ENABLE for use during resume */
- superio_select(sioreg, NCT6775_LD_HWM);
- data->sio_reg_enable = superio_inb(sioreg, SIO_REG_ENABLE);
+ sio_data->sio_select(sio_data, NCT6775_LD_HWM);
+ data->sio_reg_enable = sio_data->sio_inb(sio_data, SIO_REG_ENABLE);
/* fan4 and fan5 share some pins with the GPIO and serial flash */
if (data->kind == nct6775) {
- int cr2c = superio_inb(sioreg, 0x2c);
+ int cr2c = sio_data->sio_inb(sio_data, 0x2c);
fan3pin = cr2c & BIT(6);
pwm3pin = cr2c & BIT(7);
/* On NCT6775, fan4 shares pins with the fdc interface */
- fan4pin = !(superio_inb(sioreg, 0x2A) & 0x80);
+ fan4pin = !(sio_data->sio_inb(sio_data, 0x2A) & 0x80);
} else if (data->kind == nct6776) {
- bool gpok = superio_inb(sioreg, 0x27) & 0x80;
+ bool gpok = sio_data->sio_inb(sio_data, 0x27) & 0x80;
const char *board_vendor, *board_name;
board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
@@ -3580,7 +3597,7 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
if (!strcmp(board_name, "Z77 Pro4-M")) {
if ((data->sio_reg_enable & 0xe0) != 0xe0) {
data->sio_reg_enable |= 0xe0;
- superio_outb(sioreg, SIO_REG_ENABLE,
+ sio_data->sio_outb(sio_data, SIO_REG_ENABLE,
data->sio_reg_enable);
}
}
@@ -3589,32 +3606,32 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
if (data->sio_reg_enable & 0x80)
fan3pin = gpok;
else
- fan3pin = !(superio_inb(sioreg, 0x24) & 0x40);
+ fan3pin = !(sio_data->sio_inb(sio_data, 0x24) & 0x40);
if (data->sio_reg_enable & 0x40)
fan4pin = gpok;
else
- fan4pin = superio_inb(sioreg, 0x1C) & 0x01;
+ fan4pin = sio_data->sio_inb(sio_data, 0x1C) & 0x01;
if (data->sio_reg_enable & 0x20)
fan5pin = gpok;
else
- fan5pin = superio_inb(sioreg, 0x1C) & 0x02;
+ fan5pin = sio_data->sio_inb(sio_data, 0x1C) & 0x02;
fan4min = fan4pin;
pwm3pin = fan3pin;
} else if (data->kind == nct6106) {
- int cr24 = superio_inb(sioreg, 0x24);
+ int cr24 = sio_data->sio_inb(sio_data, 0x24);
fan3pin = !(cr24 & 0x80);
pwm3pin = cr24 & 0x08;
} else if (data->kind == nct6116) {
- int cr1a = superio_inb(sioreg, 0x1a);
- int cr1b = superio_inb(sioreg, 0x1b);
- int cr24 = superio_inb(sioreg, 0x24);
- int cr2a = superio_inb(sioreg, 0x2a);
- int cr2b = superio_inb(sioreg, 0x2b);
- int cr2f = superio_inb(sioreg, 0x2f);
+ int cr1a = sio_data->sio_inb(sio_data, 0x1a);
+ int cr1b = sio_data->sio_inb(sio_data, 0x1b);
+ int cr24 = sio_data->sio_inb(sio_data, 0x24);
+ int cr2a = sio_data->sio_inb(sio_data, 0x2a);
+ int cr2b = sio_data->sio_inb(sio_data, 0x2b);
+ int cr2f = sio_data->sio_inb(sio_data, 0x2f);
fan3pin = !(cr2b & 0x10);
fan4pin = (cr2b & 0x80) || // pin 1(2)
@@ -3630,24 +3647,24 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
* NCT6779D, NCT6791D, NCT6792D, NCT6793D, NCT6795D, NCT6796D,
* NCT6797D, NCT6798D
*/
- int cr1a = superio_inb(sioreg, 0x1a);
- int cr1b = superio_inb(sioreg, 0x1b);
- int cr1c = superio_inb(sioreg, 0x1c);
- int cr1d = superio_inb(sioreg, 0x1d);
- int cr2a = superio_inb(sioreg, 0x2a);
- int cr2b = superio_inb(sioreg, 0x2b);
- int cr2d = superio_inb(sioreg, 0x2d);
- int cr2f = superio_inb(sioreg, 0x2f);
+ int cr1a = sio_data->sio_inb(sio_data, 0x1a);
+ int cr1b = sio_data->sio_inb(sio_data, 0x1b);
+ int cr1c = sio_data->sio_inb(sio_data, 0x1c);
+ int cr1d = sio_data->sio_inb(sio_data, 0x1d);
+ int cr2a = sio_data->sio_inb(sio_data, 0x2a);
+ int cr2b = sio_data->sio_inb(sio_data, 0x2b);
+ int cr2d = sio_data->sio_inb(sio_data, 0x2d);
+ int cr2f = sio_data->sio_inb(sio_data, 0x2f);
bool dsw_en = cr2f & BIT(3);
bool ddr4_en = cr2f & BIT(4);
int cre0;
int creb;
int cred;
- superio_select(sioreg, NCT6775_LD_12);
- cre0 = superio_inb(sioreg, 0xe0);
- creb = superio_inb(sioreg, 0xeb);
- cred = superio_inb(sioreg, 0xed);
+ sio_data->sio_select(sio_data, NCT6775_LD_12);
+ cre0 = sio_data->sio_inb(sio_data, 0xe0);
+ creb = sio_data->sio_inb(sio_data, 0xeb);
+ cred = sio_data->sio_inb(sio_data, 0xed);
fan3pin = !(cr1c & BIT(5));
fan4pin = !(cr1c & BIT(6));
@@ -3774,7 +3791,7 @@ static void add_temp_sensors(struct nct6775_data *data, const u16 *regp,
if (!regp[i])
continue;
- src = nct6775_read_value(data, regp[i]);
+ src = data->read_value(data, regp[i]);
src &= 0x1f;
if (!src || (*mask & BIT(src)))
continue;
@@ -3782,7 +3799,7 @@ static void add_temp_sensors(struct nct6775_data *data, const u16 *regp,
continue;
index = __ffs(*available);
- nct6775_write_value(data, data->REG_TEMP_SOURCE[index], src);
+ data->write_value(data, data->REG_TEMP_SOURCE[index], src);
*available &= ~BIT(index);
*mask |= BIT(src);
}
@@ -3793,7 +3810,7 @@ static int nct6775_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct nct6775_sio_data *sio_data = dev_get_platdata(dev);
struct nct6775_data *data;
- struct resource *res;
+ struct resource *res = NULL;
int i, s, err = 0;
int src, mask, available;
const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config;
@@ -3806,6 +3823,9 @@ static int nct6775_probe(struct platform_device *pdev)
int num_attr_groups = 0;
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ if (!res)
+ return -EBUSY;
+
if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH,
DRVNAME))
return -EBUSY;
@@ -3818,6 +3838,8 @@ static int nct6775_probe(struct platform_device *pdev)
data->kind = sio_data->kind;
data->sioreg = sio_data->sioreg;
data->addr = res->start;
+ data->read_value = nct6775_read_value;
+ data->write_value = nct6775_write_value;
mutex_init(&data->update_lock);
data->name = nct6775_device_names[data->kind];
data->bank = 0xff; /* Force initial bank selection */
@@ -4337,7 +4359,7 @@ static int nct6775_probe(struct platform_device *pdev)
if (reg_temp[i] == 0)
continue;
- src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
+ src = data->read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
if (!src || (mask & BIT(src)))
available |= BIT(i);
@@ -4357,7 +4379,7 @@ static int nct6775_probe(struct platform_device *pdev)
if (reg_temp[i] == 0)
continue;
- src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
+ src = data->read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
if (!src || (mask & BIT(src)))
continue;
@@ -4417,7 +4439,7 @@ static int nct6775_probe(struct platform_device *pdev)
if (reg_temp_mon[i] == 0)
continue;
- src = nct6775_read_value(data, data->REG_TEMP_SEL[i]) & 0x1f;
+ src = data->read_value(data, data->REG_TEMP_SEL[i]) & 0x1f;
if (!src)
continue;
@@ -4502,11 +4524,11 @@ static int nct6775_probe(struct platform_device *pdev)
/* Initialize the chip */
nct6775_init_device(data);
- err = superio_enter(sio_data->sioreg);
+ err = sio_data->sio_enter(sio_data);
if (err)
return err;
- cr2a = superio_inb(sio_data->sioreg, 0x2a);
+ cr2a = sio_data->sio_inb(sio_data, 0x2a);
switch (data->kind) {
case nct6775:
data->have_vid = (cr2a & 0x40);
@@ -4532,17 +4554,17 @@ static int nct6775_probe(struct platform_device *pdev)
* We can get the VID input values directly at logical device D 0xe3.
*/
if (data->have_vid) {
- superio_select(sio_data->sioreg, NCT6775_LD_VID);
- data->vid = superio_inb(sio_data->sioreg, 0xe3);
+ sio_data->sio_select(sio_data, NCT6775_LD_VID);
+ data->vid = sio_data->sio_inb(sio_data, 0xe3);
data->vrm = vid_which_vrm();
}
if (fan_debounce) {
u8 tmp;
- superio_select(sio_data->sioreg, NCT6775_LD_HWM);
- tmp = superio_inb(sio_data->sioreg,
- NCT6775_REG_CR_FAN_DEBOUNCE);
+ sio_data->sio_select(sio_data, NCT6775_LD_HWM);
+ tmp = sio_data->sio_inb(sio_data,
+ NCT6775_REG_CR_FAN_DEBOUNCE);
switch (data->kind) {
case nct6106:
case nct6116:
@@ -4565,15 +4587,15 @@ static int nct6775_probe(struct platform_device *pdev)
tmp |= 0x7e;
break;
}
- superio_outb(sio_data->sioreg, NCT6775_REG_CR_FAN_DEBOUNCE,
+ sio_data->sio_outb(sio_data, NCT6775_REG_CR_FAN_DEBOUNCE,
tmp);
dev_info(&pdev->dev, "Enabled fan debounce for chip %s\n",
data->name);
}
- nct6775_check_fan_inputs(data);
+ nct6775_check_fan_inputs(data, sio_data);
- superio_exit(sio_data->sioreg);
+ sio_data->sio_exit(sio_data);
/* Read fan clock dividers immediately */
nct6775_init_fan_common(dev, data);
@@ -4613,15 +4635,15 @@ static int nct6775_probe(struct platform_device *pdev)
return PTR_ERR_OR_ZERO(hwmon_dev);
}
-static void nct6791_enable_io_mapping(int sioaddr)
+static void nct6791_enable_io_mapping(struct nct6775_sio_data *sio_data)
{
int val;
- val = superio_inb(sioaddr, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE);
+ val = sio_data->sio_inb(sio_data, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE);
if (val & 0x10) {
pr_info("Enabling hardware monitor logical device mappings.\n");
- superio_outb(sioaddr, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE,
- val & ~0x10);
+ sio_data->sio_outb(sio_data, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE,
+ val & ~0x10);
}
}
@@ -4630,10 +4652,10 @@ static int __maybe_unused nct6775_suspend(struct device *dev)
struct nct6775_data *data = nct6775_update_device(dev);
mutex_lock(&data->update_lock);
- data->vbat = nct6775_read_value(data, data->REG_VBAT);
+ data->vbat = data->read_value(data, data->REG_VBAT);
if (data->kind == nct6775) {
- data->fandiv1 = nct6775_read_value(data, NCT6775_REG_FANDIV1);
- data->fandiv2 = nct6775_read_value(data, NCT6775_REG_FANDIV2);
+ data->fandiv1 = data->read_value(data, NCT6775_REG_FANDIV1);
+ data->fandiv2 = data->read_value(data, NCT6775_REG_FANDIV2);
}
mutex_unlock(&data->update_lock);
@@ -4643,47 +4665,47 @@ static int __maybe_unused nct6775_suspend(struct device *dev)
static int __maybe_unused nct6775_resume(struct device *dev)
{
struct nct6775_data *data = dev_get_drvdata(dev);
- int sioreg = data->sioreg;
+ struct nct6775_sio_data *sio_data = dev_get_platdata(dev);
int i, j, err = 0;
u8 reg;
mutex_lock(&data->update_lock);
data->bank = 0xff; /* Force initial bank selection */
- err = superio_enter(sioreg);
+ err = sio_data->sio_enter(sio_data);
if (err)
goto abort;
- superio_select(sioreg, NCT6775_LD_HWM);
- reg = superio_inb(sioreg, SIO_REG_ENABLE);
+ sio_data->sio_select(sio_data, NCT6775_LD_HWM);
+ reg = sio_data->sio_inb(sio_data, SIO_REG_ENABLE);
if (reg != data->sio_reg_enable)
- superio_outb(sioreg, SIO_REG_ENABLE, data->sio_reg_enable);
+ sio_data->sio_outb(sio_data, SIO_REG_ENABLE, data->sio_reg_enable);
if (data->kind == nct6791 || data->kind == nct6792 ||
data->kind == nct6793 || data->kind == nct6795 ||
data->kind == nct6796 || data->kind == nct6797 ||
data->kind == nct6798)
- nct6791_enable_io_mapping(sioreg);
+ nct6791_enable_io_mapping(sio_data);
- superio_exit(sioreg);
+ sio_data->sio_exit(sio_data);
/* Restore limits */
for (i = 0; i < data->in_num; i++) {
if (!(data->have_in & BIT(i)))
continue;
- nct6775_write_value(data, data->REG_IN_MINMAX[0][i],
- data->in[i][1]);
- nct6775_write_value(data, data->REG_IN_MINMAX[1][i],
- data->in[i][2]);
+ data->write_value(data, data->REG_IN_MINMAX[0][i],
+ data->in[i][1]);
+ data->write_value(data, data->REG_IN_MINMAX[1][i],
+ data->in[i][2]);
}
for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
if (!(data->has_fan_min & BIT(i)))
continue;
- nct6775_write_value(data, data->REG_FAN_MIN[i],
- data->fan_min[i]);
+ data->write_value(data, data->REG_FAN_MIN[i],
+ data->fan_min[i]);
}
for (i = 0; i < NUM_TEMP; i++) {
@@ -4697,10 +4719,10 @@ static int __maybe_unused nct6775_resume(struct device *dev)
}
/* Restore other settings */
- nct6775_write_value(data, data->REG_VBAT, data->vbat);
+ data->write_value(data, data->REG_VBAT, data->vbat);
if (data->kind == nct6775) {
- nct6775_write_value(data, NCT6775_REG_FANDIV1, data->fandiv1);
- nct6775_write_value(data, NCT6775_REG_FANDIV2, data->fandiv2);
+ data->write_value(data, NCT6775_REG_FANDIV1, data->fandiv1);
+ data->write_value(data, NCT6775_REG_FANDIV2, data->fandiv2);
}
abort:
@@ -4728,12 +4750,14 @@ static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
int err;
int addr;
- err = superio_enter(sioaddr);
+ sio_data->sioreg = sioaddr;
+
+ err = sio_data->sio_enter(sio_data);
if (err)
return err;
- val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8) |
- superio_inb(sioaddr, SIO_REG_DEVID + 1);
+ val = (sio_data->sio_inb(sio_data, SIO_REG_DEVID) << 8) |
+ sio_data->sio_inb(sio_data, SIO_REG_DEVID + 1);
if (force_id && val != 0xffff)
val = force_id;
@@ -4777,38 +4801,37 @@ static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
default:
if (val != 0xffff)
pr_debug("unsupported chip ID: 0x%04x\n", val);
- superio_exit(sioaddr);
+ sio_data->sio_exit(sio_data);
return -ENODEV;
}
/* We have a known chip, find the HWM I/O address */
- superio_select(sioaddr, NCT6775_LD_HWM);
- val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
- | superio_inb(sioaddr, SIO_REG_ADDR + 1);
+ sio_data->sio_select(sio_data, NCT6775_LD_HWM);
+ val = (sio_data->sio_inb(sio_data, SIO_REG_ADDR) << 8)
+ | sio_data->sio_inb(sio_data, SIO_REG_ADDR + 1);
addr = val & IOREGION_ALIGNMENT;
if (addr == 0) {
pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n");
- superio_exit(sioaddr);
+ sio_data->sio_exit(sio_data);
return -ENODEV;
}
/* Activate logical device if needed */
- val = superio_inb(sioaddr, SIO_REG_ENABLE);
+ val = sio_data->sio_inb(sio_data, SIO_REG_ENABLE);
if (!(val & 0x01)) {
pr_warn("Forcibly enabling Super-I/O. Sensor is probably unusable.\n");
- superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
+ sio_data->sio_outb(sio_data, SIO_REG_ENABLE, val | 0x01);
}
if (sio_data->kind == nct6791 || sio_data->kind == nct6792 ||
sio_data->kind == nct6793 || sio_data->kind == nct6795 ||
sio_data->kind == nct6796 || sio_data->kind == nct6797 ||
sio_data->kind == nct6798)
- nct6791_enable_io_mapping(sioaddr);
+ nct6791_enable_io_mapping(sio_data);
- superio_exit(sioaddr);
+ sio_data->sio_exit(sio_data);
pr_info("Found %s or compatible chip at %#x:%#x\n",
nct6775_sio_names[sio_data->kind], sioaddr, addr);
- sio_data->sioreg = sioaddr;
return addr;
}
@@ -4842,6 +4865,12 @@ static int __init sensors_nct6775_init(void)
* nct6775 hardware monitor, and call probe()
*/
for (i = 0; i < ARRAY_SIZE(pdev); i++) {
+ sio_data.sio_outb = superio_outb;
+ sio_data.sio_inb = superio_inb;
+ sio_data.sio_select = superio_select;
+ sio_data.sio_enter = superio_enter;
+ sio_data.sio_exit = superio_exit;
+
address = nct6775_find(sioaddr[i], &sio_data);
if (address <= 0)
continue;
--
2.33.0
^ permalink raw reply [flat|nested] 3+ messages in thread* [PATCH v4 2/2] hwmon: (nct6775) Support access via Asus WMI
2021-09-12 21:02 [PATCH v4 0/2] hwmon: (nct6775) Support access via Asus WMI Denis Pauk
2021-09-12 21:02 ` [PATCH v4 1/2] hwmon: (nct6775) Use sio_data in superio_*() Denis Pauk
@ 2021-09-12 21:02 ` Denis Pauk
1 sibling, 0 replies; 3+ messages in thread
From: Denis Pauk @ 2021-09-12 21:02 UTC (permalink / raw)
Cc: pauk.denis, Bernhard Seibold, Pär Ekholm, to.eivind,
Artem S . Tashkinov, Vittorio Roberto Alfieri, Sahan Fernando,
Andy Shevchenko, Guenter Roeck, Jean Delvare, linux-hwmon,
linux-kernel
Support accessing the NCT677x via Asus WMI functions.
On mainboards that support this way of accessing the chip, the driver will
usually not work without this option since in these mainboards, ACPI will
mark the I/O port as used.
Code uses ACPI firmware interface to commucate with sensors with ASUS
motherboards:
* PRIME B460-PLUS,
* ROG CROSSHAIR VIII IMPACT,
* ROG STRIX B550-E GAMING,
* ROG STRIX B550-F GAMING,
* ROG STRIX B550-F GAMING (WI-FI),
* ROG STRIX Z490-I GAMING,
* TUF GAMING B550M-PLUS,
* TUF GAMING B550M-PLUS (WI-FI),
* TUF GAMING B550-PLUS,
* TUF GAMING X570-PLUS,
* TUF GAMING X570-PRO (WI-FI).
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204807
Signed-off-by: Denis Pauk <pauk.denis@gmail.com>
Co-developed-by: Bernhard Seibold <mail@bernhard-seibold.de>
Signed-off-by: Bernhard Seibold <mail@bernhard-seibold.de>
Tested-by: Pär Ekholm <pehlm@pekholm.org>
Tested-by: <to.eivind@gmail.com>
Tested-by: Artem S. Tashkinov <aros@gmx.com>
Tested-by: Vittorio Roberto Alfieri <me@rebtoor.com>
Tested-by: Sahan Fernando <sahan.h.fernando@gmail.com>
Cc: Andy Shevchenko <andriy.shevchenko@intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
---
Changes in v4:
- Fix build without ACPI WMI.
Changes in v3:
- Remove unrequired type conversions.
- Save result of match_string before check.
Changes in v2:
- Split changes to separate patches.
- Limit WMI usage by DMI_BOARD_NAME in checked ASUS motherboards.
---
drivers/hwmon/nct6775.c | 244 ++++++++++++++++++++++++++++++++++++----
1 file changed, 221 insertions(+), 23 deletions(-)
diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index d813a7478f59..fbe2887ef2de 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -55,6 +55,7 @@
#include <linux/dmi.h>
#include <linux/io.h>
#include <linux/nospec.h>
+#include <linux/wmi.h>
#include "lm75.h"
#define USE_ALTERNATE
@@ -132,10 +133,13 @@ MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
#define SIO_ID_MASK 0xFFF8
enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 };
+enum sensor_access { access_direct, access_asuswmi };
struct nct6775_sio_data {
int sioreg;
+ int ld;
enum kinds kind;
+ enum sensor_access access;
/* superio_() callbacks */
void (*sio_outb)(struct nct6775_sio_data *sio_data, int reg, int val);
@@ -145,6 +149,86 @@ struct nct6775_sio_data {
void (*sio_exit)(struct nct6775_sio_data *sio_data);
};
+#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
+#define ASUSWMI_MGMT2_GUID "466747A0-70EC-11DE-8A39-0800200C9A66"
+#define ASUSWMI_METHODID_RSIO 0x5253494F
+#define ASUSWMI_METHODID_WSIO 0x5753494F
+#define ASUSWMI_METHODID_RHWM 0x5248574D
+#define ASUSWMI_METHODID_WHWM 0x5748574D
+#define ASUSWMI_UNSUPPORTED_METHOD 0xFFFFFFFE
+
+static int asuswmi_evaluate_method(u32 method_id, u8 bank, u8 reg, u8 val, u32 *retval)
+{
+ u32 args = bank | (reg << 8) | (val << 16);
+ struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
+ struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+ acpi_status status;
+ union acpi_object *obj;
+ u32 tmp = 0;
+
+ status = wmi_evaluate_method(ASUSWMI_MGMT2_GUID, 0, method_id,
+ &input, &output);
+
+ if (ACPI_FAILURE(status))
+ return -EIO;
+
+ obj = output.pointer;
+ if (obj && obj->type == ACPI_TYPE_INTEGER)
+ tmp = obj->integer.value;
+
+ if (retval)
+ *retval = tmp;
+
+ kfree(obj);
+
+ if (tmp == ASUSWMI_UNSUPPORTED_METHOD)
+ return -ENODEV;
+ return 0;
+}
+
+static inline int nct6775_asuswmi_write(u8 bank, u8 reg, u8 val)
+{
+ return asuswmi_evaluate_method(ASUSWMI_METHODID_WHWM, bank, reg, val, 0);
+}
+
+static inline int nct6775_asuswmi_read(u8 bank, u8 reg, u8 *val)
+{
+ u32 tmp;
+ int ret = asuswmi_evaluate_method(ASUSWMI_METHODID_RHWM, bank, reg, 0, &tmp);
+ *val = tmp;
+ return ret;
+}
+
+static int superio_wmi_inb(struct nct6775_sio_data *sio_data, int reg)
+{
+ int tmp;
+
+ asuswmi_evaluate_method(ASUSWMI_METHODID_RSIO,
+ sio_data->ld, reg, 0, &tmp);
+ return tmp;
+}
+
+static void superio_wmi_outb(struct nct6775_sio_data *sio_data, int reg, int val)
+{
+ asuswmi_evaluate_method(ASUSWMI_METHODID_WSIO,
+ sio_data->ld, reg, val, 0);
+}
+
+static void superio_wmi_select(struct nct6775_sio_data *sio_data, int ld)
+{
+ sio_data->ld = ld;
+}
+
+static int superio_wmi_enter(struct nct6775_sio_data *sio_data)
+{
+ return 0;
+}
+
+static void superio_wmi_exit(struct nct6775_sio_data *sio_data)
+{
+}
+#endif
+
static void superio_outb(struct nct6775_sio_data *sio_data, int reg, int val)
{
int ioreg = sio_data->sioreg;
@@ -1423,6 +1507,51 @@ static bool is_word_sized(struct nct6775_data *data, u16 reg)
return false;
}
+#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
+static inline void nct6775_wmi_set_bank(struct nct6775_data *data, u16 reg)
+{
+ u8 bank = reg >> 8;
+
+ data->bank = bank;
+}
+
+static u16 nct6775_wmi_read_value(struct nct6775_data *data, u16 reg)
+{
+ int res, word_sized = is_word_sized(data, reg);
+ u8 tmp;
+
+ nct6775_wmi_set_bank(data, reg);
+
+ nct6775_asuswmi_read(data->bank, reg, &tmp);
+ res = (tmp & 0xff);
+ if (word_sized) {
+ nct6775_asuswmi_read(data->bank,
+ (reg & 0xff) + 1, &tmp);
+ res = (res << 8) + (tmp & 0xff);
+ }
+ return res;
+}
+
+static int nct6775_wmi_write_value(struct nct6775_data *data, u16 reg, u16 value)
+{
+ int word_sized = is_word_sized(data, reg);
+
+ nct6775_wmi_set_bank(data, reg);
+
+ if (word_sized) {
+ nct6775_asuswmi_write(data->bank, (reg & 0xff),
+ (value >> 8) & 0xff);
+ nct6775_asuswmi_write(data->bank, (reg & 0xff) + 1,
+ value & 0xff);
+ } else {
+ nct6775_asuswmi_write(data->bank, (reg & 0xff),
+ value);
+ }
+
+ return 0;
+}
+#endif
+
/*
* On older chips, only registers 0x50-0x5f are banked.
* On more recent chips, all registers are banked.
@@ -3822,13 +3951,15 @@ static int nct6775_probe(struct platform_device *pdev)
struct device *hwmon_dev;
int num_attr_groups = 0;
- res = platform_get_resource(pdev, IORESOURCE_IO, 0);
- if (!res)
- return -EBUSY;
+ if (sio_data->access == access_direct) {
+ res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ if (!res)
+ return -EBUSY;
- if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH,
- DRVNAME))
- return -EBUSY;
+ if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH,
+ DRVNAME))
+ return -EBUSY;
+ }
data = devm_kzalloc(&pdev->dev, sizeof(struct nct6775_data),
GFP_KERNEL);
@@ -3837,9 +3968,19 @@ static int nct6775_probe(struct platform_device *pdev)
data->kind = sio_data->kind;
data->sioreg = sio_data->sioreg;
- data->addr = res->start;
- data->read_value = nct6775_read_value;
- data->write_value = nct6775_write_value;
+
+ if (sio_data->access == access_direct) {
+ data->addr = res->start;
+ data->read_value = nct6775_read_value;
+ data->write_value = nct6775_write_value;
+ } else {
+ data->addr = 0;
+#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
+ data->read_value = nct6775_wmi_read_value;
+ data->write_value = nct6775_wmi_write_value;
+#endif
+ }
+
mutex_init(&data->update_lock);
data->name = nct6775_device_names[data->kind];
data->bank = 0xff; /* Force initial bank selection */
@@ -4750,6 +4891,7 @@ static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
int err;
int addr;
+ sio_data->access = access_direct;
sio_data->sioreg = sioaddr;
err = sio_data->sio_enter(sio_data);
@@ -4844,6 +4986,24 @@ static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
*/
static struct platform_device *pdev[2];
+#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
+#define NCT6775_REG_CHIPID 0x58
+
+static const char * const asus_wmi_boards[] = {
+ "PRIME B460-PLUS",
+ "ROG CROSSHAIR VIII IMPACT",
+ "ROG STRIX B550-E GAMING",
+ "ROG STRIX B550-F GAMING",
+ "ROG STRIX B550-F GAMING (WI-FI)",
+ "ROG STRIX Z490-I GAMING",
+ "TUF GAMING B550M-PLUS",
+ "TUF GAMING B550M-PLUS (WI-FI)",
+ "TUF GAMING B550-PLUS",
+ "TUF GAMING X570-PLUS",
+ "TUF GAMING X570-PRO (WI-FI)",
+};
+#endif
+
static int __init sensors_nct6775_init(void)
{
int i, err;
@@ -4852,11 +5012,34 @@ static int __init sensors_nct6775_init(void)
struct resource res;
struct nct6775_sio_data sio_data;
int sioaddr[2] = { 0x2e, 0x4e };
+ enum sensor_access access = access_direct;
+#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
+ const char *board_vendor, *board_name;
+ u8 tmp;
+#endif
err = platform_driver_register(&nct6775_driver);
if (err)
return err;
+#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
+ board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
+ board_name = dmi_get_system_info(DMI_BOARD_NAME);
+
+ if (board_name && board_vendor &&
+ !strcmp(board_vendor, "ASUSTeK COMPUTER INC.")) {
+ err = match_string(asus_wmi_boards,
+ ARRAY_SIZE(asus_wmi_boards), board_name);
+ if (err != -EINVAL) {
+ /* if reading chip id via WMI succeeds, use WMI */
+ if (!nct6775_asuswmi_read(0, NCT6775_REG_CHIPID, &tmp)) {
+ pr_info("Using Asus WMI to access chip\n");
+ access = access_asuswmi;
+ }
+ }
+ }
+#endif
+
/*
* initialize sio_data->kind and sio_data->sioreg.
*
@@ -4877,6 +5060,19 @@ static int __init sensors_nct6775_init(void)
found = true;
+ /* Update access method */
+ sio_data.access = access;
+
+#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
+ if (access == access_asuswmi) {
+ sio_data.sio_outb = superio_wmi_outb;
+ sio_data.sio_inb = superio_wmi_inb;
+ sio_data.sio_select = superio_wmi_select;
+ sio_data.sio_enter = superio_wmi_enter;
+ sio_data.sio_exit = superio_wmi_exit;
+ }
+#endif
+
pdev[i] = platform_device_alloc(DRVNAME, address);
if (!pdev[i]) {
err = -ENOMEM;
@@ -4888,23 +5084,25 @@ static int __init sensors_nct6775_init(void)
if (err)
goto exit_device_put;
- memset(&res, 0, sizeof(res));
- res.name = DRVNAME;
- res.start = address + IOREGION_OFFSET;
- res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
- res.flags = IORESOURCE_IO;
+ if (sio_data.access == access_direct) {
+ memset(&res, 0, sizeof(res));
+ res.name = DRVNAME;
+ res.start = address + IOREGION_OFFSET;
+ res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
+ res.flags = IORESOURCE_IO;
+
+ err = acpi_check_resource_conflict(&res);
+ if (err) {
+ platform_device_put(pdev[i]);
+ pdev[i] = NULL;
+ continue;
+ }
- err = acpi_check_resource_conflict(&res);
- if (err) {
- platform_device_put(pdev[i]);
- pdev[i] = NULL;
- continue;
+ err = platform_device_add_resources(pdev[i], &res, 1);
+ if (err)
+ goto exit_device_put;
}
- err = platform_device_add_resources(pdev[i], &res, 1);
- if (err)
- goto exit_device_put;
-
/* platform_device_add calls probe() */
err = platform_device_add(pdev[i]);
if (err)
--
2.33.0
^ permalink raw reply [flat|nested] 3+ messages in thread