* IT8726F Super I/O chip w/LPC interface
* IT8728F Super I/O chip w/LPC interface
* IT8758E Super I/O chip w/LPC interface
+ * IT8782F Super I/O chip w/LPC interface
* IT8771E Super I/O chip w/LPC interface
* IT8772E Super I/O chip w/LPC interface
* IT8781F Super I/O chip w/LPC interface
#define IT87_REG_VIN_ENABLE 0x50
#define IT87_REG_TEMP_ENABLE 0x51
+#define IT87_REG_TEMP_EXTRA 0x55
#define IT87_REG_BEEP_ENABLE 0x5c
#define IT87_REG_CHIPID 0x58
u8 beep_pin;
u8 internal; /* Internal sensors can be labeled */
/* Features skipped based on config or DMI */
+ u16 skip_in;
u8 skip_vid;
u8 skip_fan;
u8 skip_pwm;
+ u8 skip_temp;
};
/*
u8 has_fan; /* Bitfield, fans enabled */
u16 fan[5]; /* Register values, possibly combined */
u16 fan_min[5]; /* Register values, possibly combined */
+ u8 has_temp; /* Bitfield, temp sensors enabled */
s8 temp[3]; /* Register value */
s8 temp_high[3]; /* Register value */
s8 temp_low[3]; /* Register value */
|| data->type == it8772;
}
-static u8 in_to_reg(const struct it87_data *data, int nr, long val)
+static int adc_lsb(const struct it87_data *data, int nr)
{
- long lsb;
-
- if (has_12mv_adc(data)) {
- if (data->in_scaled & (1 << nr))
- lsb = 24;
- else
- lsb = 12;
- } else {
- if (data->in_scaled & (1 << nr))
- lsb = 32;
- else
- lsb = 16;
- }
+ int lsb = has_12mv_adc(data) ? 12 : 16;
+ if (data->in_scaled & (1 << nr))
+ lsb <<= 1;
+ return lsb;
+}
- val = DIV_ROUND_CLOSEST(val, lsb);
+static u8 in_to_reg(const struct it87_data *data, int nr, long val)
+{
+ val = DIV_ROUND_CLOSEST(val, adc_lsb(data, nr));
return SENSORS_LIMIT(val, 0, 255);
}
static int in_from_reg(const struct it87_data *data, int nr, int val)
{
- if (has_12mv_adc(data)) {
- if (data->in_scaled & (1 << nr))
- return val * 24;
- else
- return val * 12;
- } else {
- if (data->in_scaled & (1 << nr))
- return val * 32;
- else
- return val * 16;
- }
+ return val * adc_lsb(data, nr);
}
static inline u8 FAN_TO_REG(long rpm, int div)
}
static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
-static struct attribute *it87_attributes[] = {
+static struct attribute *it87_attributes_in[9][5] = {
+{
&sensor_dev_attr_in0_input.dev_attr.attr,
- &sensor_dev_attr_in1_input.dev_attr.attr,
- &sensor_dev_attr_in2_input.dev_attr.attr,
- &sensor_dev_attr_in3_input.dev_attr.attr,
- &sensor_dev_attr_in4_input.dev_attr.attr,
- &sensor_dev_attr_in5_input.dev_attr.attr,
- &sensor_dev_attr_in6_input.dev_attr.attr,
- &sensor_dev_attr_in7_input.dev_attr.attr,
- &sensor_dev_attr_in8_input.dev_attr.attr,
&sensor_dev_attr_in0_min.dev_attr.attr,
- &sensor_dev_attr_in1_min.dev_attr.attr,
- &sensor_dev_attr_in2_min.dev_attr.attr,
- &sensor_dev_attr_in3_min.dev_attr.attr,
- &sensor_dev_attr_in4_min.dev_attr.attr,
- &sensor_dev_attr_in5_min.dev_attr.attr,
- &sensor_dev_attr_in6_min.dev_attr.attr,
- &sensor_dev_attr_in7_min.dev_attr.attr,
&sensor_dev_attr_in0_max.dev_attr.attr,
- &sensor_dev_attr_in1_max.dev_attr.attr,
- &sensor_dev_attr_in2_max.dev_attr.attr,
- &sensor_dev_attr_in3_max.dev_attr.attr,
- &sensor_dev_attr_in4_max.dev_attr.attr,
- &sensor_dev_attr_in5_max.dev_attr.attr,
- &sensor_dev_attr_in6_max.dev_attr.attr,
- &sensor_dev_attr_in7_max.dev_attr.attr,
&sensor_dev_attr_in0_alarm.dev_attr.attr,
+ NULL
+}, {
+ &sensor_dev_attr_in1_input.dev_attr.attr,
+ &sensor_dev_attr_in1_min.dev_attr.attr,
+ &sensor_dev_attr_in1_max.dev_attr.attr,
&sensor_dev_attr_in1_alarm.dev_attr.attr,
+ NULL
+}, {
+ &sensor_dev_attr_in2_input.dev_attr.attr,
+ &sensor_dev_attr_in2_min.dev_attr.attr,
+ &sensor_dev_attr_in2_max.dev_attr.attr,
&sensor_dev_attr_in2_alarm.dev_attr.attr,
+ NULL
+}, {
+ &sensor_dev_attr_in3_input.dev_attr.attr,
+ &sensor_dev_attr_in3_min.dev_attr.attr,
+ &sensor_dev_attr_in3_max.dev_attr.attr,
&sensor_dev_attr_in3_alarm.dev_attr.attr,
+ NULL
+}, {
+ &sensor_dev_attr_in4_input.dev_attr.attr,
+ &sensor_dev_attr_in4_min.dev_attr.attr,
+ &sensor_dev_attr_in4_max.dev_attr.attr,
&sensor_dev_attr_in4_alarm.dev_attr.attr,
+ NULL
+}, {
+ &sensor_dev_attr_in5_input.dev_attr.attr,
+ &sensor_dev_attr_in5_min.dev_attr.attr,
+ &sensor_dev_attr_in5_max.dev_attr.attr,
&sensor_dev_attr_in5_alarm.dev_attr.attr,
+ NULL
+}, {
+ &sensor_dev_attr_in6_input.dev_attr.attr,
+ &sensor_dev_attr_in6_min.dev_attr.attr,
+ &sensor_dev_attr_in6_max.dev_attr.attr,
&sensor_dev_attr_in6_alarm.dev_attr.attr,
+ NULL
+}, {
+ &sensor_dev_attr_in7_input.dev_attr.attr,
+ &sensor_dev_attr_in7_min.dev_attr.attr,
+ &sensor_dev_attr_in7_max.dev_attr.attr,
&sensor_dev_attr_in7_alarm.dev_attr.attr,
+ NULL
+}, {
+ &sensor_dev_attr_in8_input.dev_attr.attr,
+ NULL
+} };
+static const struct attribute_group it87_group_in[9] = {
+ { .attrs = it87_attributes_in[0] },
+ { .attrs = it87_attributes_in[1] },
+ { .attrs = it87_attributes_in[2] },
+ { .attrs = it87_attributes_in[3] },
+ { .attrs = it87_attributes_in[4] },
+ { .attrs = it87_attributes_in[5] },
+ { .attrs = it87_attributes_in[6] },
+ { .attrs = it87_attributes_in[7] },
+ { .attrs = it87_attributes_in[8] },
+};
+
+static struct attribute *it87_attributes_temp[3][6] = {
+{
&sensor_dev_attr_temp1_input.dev_attr.attr,
- &sensor_dev_attr_temp2_input.dev_attr.attr,
- &sensor_dev_attr_temp3_input.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
- &sensor_dev_attr_temp2_max.dev_attr.attr,
- &sensor_dev_attr_temp3_max.dev_attr.attr,
&sensor_dev_attr_temp1_min.dev_attr.attr,
- &sensor_dev_attr_temp2_min.dev_attr.attr,
- &sensor_dev_attr_temp3_min.dev_attr.attr,
&sensor_dev_attr_temp1_type.dev_attr.attr,
- &sensor_dev_attr_temp2_type.dev_attr.attr,
- &sensor_dev_attr_temp3_type.dev_attr.attr,
&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+ NULL
+} , {
+ &sensor_dev_attr_temp2_input.dev_attr.attr,
+ &sensor_dev_attr_temp2_max.dev_attr.attr,
+ &sensor_dev_attr_temp2_min.dev_attr.attr,
+ &sensor_dev_attr_temp2_type.dev_attr.attr,
&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+ NULL
+} , {
+ &sensor_dev_attr_temp3_input.dev_attr.attr,
+ &sensor_dev_attr_temp3_max.dev_attr.attr,
+ &sensor_dev_attr_temp3_min.dev_attr.attr,
+ &sensor_dev_attr_temp3_type.dev_attr.attr,
&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+ NULL
+} };
+static const struct attribute_group it87_group_temp[3] = {
+ { .attrs = it87_attributes_temp[0] },
+ { .attrs = it87_attributes_temp[1] },
+ { .attrs = it87_attributes_temp[2] },
+};
+
+static struct attribute *it87_attributes[] = {
&dev_attr_alarms.attr,
&sensor_dev_attr_intrusion0_alarm.dev_attr.attr,
&dev_attr_name.attr,
.attrs = it87_attributes,
};
-static struct attribute *it87_attributes_beep[] = {
+static struct attribute *it87_attributes_in_beep[] = {
&sensor_dev_attr_in0_beep.dev_attr.attr,
&sensor_dev_attr_in1_beep.dev_attr.attr,
&sensor_dev_attr_in2_beep.dev_attr.attr,
&sensor_dev_attr_in5_beep.dev_attr.attr,
&sensor_dev_attr_in6_beep.dev_attr.attr,
&sensor_dev_attr_in7_beep.dev_attr.attr,
+ NULL
+};
+static struct attribute *it87_attributes_temp_beep[] = {
&sensor_dev_attr_temp1_beep.dev_attr.attr,
&sensor_dev_attr_temp2_beep.dev_attr.attr,
&sensor_dev_attr_temp3_beep.dev_attr.attr,
- NULL
-};
-
-static const struct attribute_group it87_group_beep = {
- .attrs = it87_attributes_beep,
};
static struct attribute *it87_attributes_fan16[5][3+1] = { {
/* The IT8705F has a different LD number for GPIO */
superio_select(5);
sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
- } else if (sio_data->type == it8781 || sio_data->type == it8782 ||
- sio_data->type == it8783) {
+ } else if (sio_data->type == it8783) {
int reg25, reg27, reg2A, reg2C, regEF;
+ bool uart6;
sio_data->skip_vid = 1; /* No VID */
reg2C = superio_inb(IT87_SIO_PINX2_REG);
regEF = superio_inb(IT87_SIO_SPI_REG);
+ uart6 = reg2C & (1 << 2);
+
/* Check if fan3 is there or not */
- if ((reg27 & (1 << 0)) || !(reg2C & (1 << 2)))
+ if ((reg27 & (1 << 0)) || !uart6)
sio_data->skip_fan |= (1 << 2);
if ((reg25 & (1 << 4))
|| (!(reg2A & (1 << 1)) && (regEF & (1 << 0))))
sio_data->skip_pwm |= (1 << 1);
/* VIN5 */
- if ((reg27 & (1 << 0)) || (reg2C & (1 << 2)))
- ; /* No VIN5 */
+ if ((reg27 & (1 << 0)) || uart6)
+ sio_data->skip_in |= (1 << 5); /* No VIN5 */
/* VIN6 */
- if ((reg27 & (1 << 1)) || (reg2C & (1 << 2)))
- ; /* No VIN6 */
+ if ((reg27 & (1 << 1)) || uart6)
+ sio_data->skip_in |= (1 << 6); /* No VIN6 */
/*
* VIN7
* Does not depend on bit 2 of Reg2C, contrary to datasheet.
*/
- if (reg27 & (1 << 2))
- ; /* No VIN7 */
+ if (reg27 & (1 << 2)) {
+ /*
+ * The data sheet is a bit uncear regarding the internal
+ * voltage divider for VCCH5V. It says
+ * "This bit enables and switches VIN7 (pin91) to the
+ * internal voltage divider for VCCH5V".
+ * This is different to other chips, where the internal
+ * voltage divider would connect VIN7 to an internal
+ * voltage source. Maybe that is the case here as well,
+ * but at least for now follow the data sheet and assume
+ * that there is no VIN7 if pin 91 is not configured as
+ * VIN7 input.
+ */
+ sio_data->skip_in |= (1 << 7);
+ }
+
+ /*
+ * No temp3 if UART6 is enabled and the temp3 source is TEMPIN3.
+ * We can not read the temp3 source here, so skip_temp is
+ * preliminary.
+ */
+ if (uart6)
+ sio_data->skip_temp |= (1 << 2);
if (reg2C & (1 << 0))
sio_data->internal |= (1 << 0);
} else {
int reg;
+ bool uart6;
superio_select(GPIO);
reg = superio_inb(IT87_SIO_GPIO3_REG);
- if (sio_data->type == it8721 || sio_data->type == it8728
- || sio_data->type == it8771 || sio_data->type == it8772) {
+ if (sio_data->type == it8721 || sio_data->type == it8728 ||
+ sio_data->type == it8771 || sio_data->type == it8772 ||
+ sio_data->type == it8781 || sio_data->type == it8782) {
/*
- * The IT8721F/IT8758E don't have VID pins at all,
- * not sure about the IT8728F, IT8771E, IT8772E.
+ * IT8721F, IT8758E, and IT8782F don't have VID pins
+ * at all, not sure about the IT8728F.
*/
sio_data->skip_vid = 1;
} else {
sio_data->vid_value = superio_inb(IT87_SIO_VID_REG);
reg = superio_inb(IT87_SIO_PINX2_REG);
+
+ uart6 = sio_data->type == it8782 && (reg & (1 << 2));
+
/*
* The IT8720F has no VIN7 pin, so VCCH should always be
* routed internally to VIN7 with an internal divider.
* configured, even though the IT8720F datasheet claims
* that the internal routing of VCCH to VIN7 is the default
* setting. So we force the internal routing in this case.
+ *
+ * On IT8782F, VIN7 is multiplexed with one of the UART6 pins.
+ * If UART6 is enabled, re-route VIN7 to the internal divider.
*/
- if (sio_data->type == it8720 && !(reg & (1 << 1))) {
+ if ((sio_data->type == it8720 && !(reg & (1 << 1))) || uart6) {
reg |= (1 << 1);
superio_outb(IT87_SIO_PINX2_REG, reg);
pr_notice("Routing internal VCCH to in7\n");
sio_data->type == it8772 )
sio_data->internal |= (1 << 1);
+ /*
+ * On IT8782F, UART6 pins overlap with VIN5, VIN6, and VIN7.
+ * While VIN7 can be routed to the internal voltage divider,
+ * VIN5 and VIN6 are not available if UART6 is enabled.
+ *
+ * Also, temp3 is not available if UART6 is enabled and TEMPIN3
+ * is the temperature source. Since we can not read the
+ * temperature source here, skip_temp is preliminary.
+ */
+ if (uart6) {
+ sio_data->skip_in |= (1 << 5) | (1 << 6);
+ sio_data->skip_temp |= (1 << 2);
+ }
+
sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
}
if (sio_data->beep_pin)
int i;
sysfs_remove_group(&dev->kobj, &it87_group);
- if (sio_data->beep_pin)
- sysfs_remove_group(&dev->kobj, &it87_group_beep);
+ for (i = 0; i < 9; i++) {
+ sysfs_remove_group(&dev->kobj, &it87_group_in[i]);
+ if (it87_attributes_in_beep[i])
+ sysfs_remove_file(&dev->kobj,
+ it87_attributes_in_beep[i]);
+ }
+ for (i = 0; i < 3; i++) {
+ sysfs_remove_group(&dev->kobj, &it87_group_temp[i]);
+ sysfs_remove_file(&dev->kobj,
+ it87_attributes_temp_beep[i]);
+ }
for (i = 0; i < 5; i++) {
if (!(data->has_fan & (1 << i)))
continue;
goto ERROR0;
}
- data = kzalloc(sizeof(struct it87_data), GFP_KERNEL);
+ data = devm_kzalloc(&pdev->dev, sizeof(struct it87_data), GFP_KERNEL);
if (!data) {
err = -ENOMEM;
goto ERROR1;
if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80)
|| it87_read_value(data, IT87_REG_CHIPID) != 0x90) {
err = -ENODEV;
- goto ERROR2;
+ goto ERROR1;
}
platform_set_drvdata(pdev, data);
data->in_scaled |= (1 << 7); /* in7 is VCCH5V */
}
+ data->has_temp = 0x07;
+ if (sio_data->skip_temp &&
+ !(it87_read_value(data, IT87_REG_TEMP_EXTRA) & 0x80))
+ data->has_temp &= ~sio_data->skip_temp;
+
/* Initialize the IT87 chip */
it87_init_device(pdev);
/* Register sysfs hooks */
- err = sysfs_create_group(&dev->kobj, &it87_group);
- if (err)
- goto ERROR2;
+ for (i = 0; i < 9; i++) {
+ if (sio_data->skip_in & (1 << i))
+ continue;
+ err = sysfs_create_group(&dev->kobj, &it87_group_in[i]);
+ if (err)
+ goto ERROR4;
+ if (sio_data->beep_pin && it87_attributes_in_beep[i]) {
+ err = sysfs_create_file(&dev->kobj,
+ it87_attributes_in_beep[i]);
+ if (err)
+ goto ERROR4;
+ }
+ }
- if (sio_data->beep_pin) {
- err = sysfs_create_group(&dev->kobj, &it87_group_beep);
+ for (i = 0; i < 3; i++) {
+ if (!(data->has_temp & (1 << i)))
+ continue;
+ err = sysfs_create_group(&dev->kobj, &it87_group_temp[i]);
if (err)
goto ERROR4;
+ if (sio_data->beep_pin) {
+ err = sysfs_create_file(&dev->kobj,
+ it87_attributes_temp_beep[i]);
+ if (err)
+ goto ERROR4;
+ }
}
+ err = sysfs_create_group(&dev->kobj, &it87_group);
+ if (err)
+ goto ERROR4;
+
/* Do not create fan files for disabled fans */
fan_group = it87_get_fan_group(data);
fan_beep_need_rw = 1;
ERROR4:
it87_remove_files(dev);
-ERROR2:
- platform_set_drvdata(pdev, NULL);
- kfree(data);
ERROR1:
release_region(res->start, IT87_EC_EXTENT);
ERROR0:
it87_remove_files(&pdev->dev);
release_region(data->addr, IT87_EC_EXTENT);
- platform_set_drvdata(pdev, NULL);
- kfree(data);
-
return 0;
}
it87_write_value(data, IT87_REG_FAN_16BIT,
tmp | 0x07);
}
- /* IT8705F and IT8783E/F only support three fans. */
- if (data->type != it87 && data->type != it8783) {
+ /* IT8705F, IT8782F, and IT8783E/F only support three fans. */
+ if (data->type != it87 && data->type != it8781 &&
+ data->type != it8782 && data->type != it8783) {
if (tmp & (1 << 4))
data->has_fan |= (1 << 3); /* fan4 enabled */
if (tmp & (1 << 5))
}
}
for (i = 0; i < 3; i++) {
+ if (!(data->has_temp & (1 << i)))
+ continue;
data->temp[i] =
it87_read_value(data, IT87_REG_TEMP(i));
data->temp_high[i] =
projects / groeck-it87 / commitdiff