diff options
| -rw-r--r-- | Documentation/hwmon/lm63 | 3 | ||||
| -rw-r--r-- | drivers/hwmon/lm63.c | 148 |
2 files changed, 136 insertions, 15 deletions
diff --git a/Documentation/hwmon/lm63 b/Documentation/hwmon/lm63 index df3e1ae42f39..4d30d209881a 100644 --- a/Documentation/hwmon/lm63 +++ b/Documentation/hwmon/lm63 @@ -66,7 +66,8 @@ supported either. The lm63 driver will not update its values more frequently than configured with the update_interval sysfs attribute; reading them more often will do no harm, -but will return 'old' values. +but will return 'old' values. Values in the automatic fan control lookup table +(attributes pwm1_auto_*) have their own independent lifetime of 5 seconds. The LM64 is effectively an LM63 with GPIO lines. The driver does not support these GPIO lines at present. diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c index a5e4ba82af17..1c06a333ba20 100644 --- a/drivers/hwmon/lm63.c +++ b/drivers/hwmon/lm63.c @@ -75,6 +75,9 @@ static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END }; #define LM63_REG_PWM_VALUE 0x4C #define LM63_REG_PWM_FREQ 0x4D +#define LM63_REG_LUT_TEMP_HYST 0x4F +#define LM63_REG_LUT_TEMP(nr) (0x50 + 2 * (nr)) +#define LM63_REG_LUT_PWM(nr) (0x51 + 2 * (nr)) #define LM63_REG_LOCAL_TEMP 0x00 #define LM63_REG_LOCAL_HIGH 0x05 @@ -192,7 +195,9 @@ struct lm63_data { struct device *hwmon_dev; struct mutex update_lock; char valid; /* zero until following fields are valid */ + char lut_valid; /* zero until lut fields are valid */ unsigned long last_updated; /* in jiffies */ + unsigned long lut_last_updated; /* in jiffies */ enum chips kind; int temp2_offset; @@ -204,18 +209,22 @@ struct lm63_data { u16 fan[2]; /* 0: input 1: low limit */ u8 pwm1_freq; - u8 pwm1_value; - s8 temp8[3]; /* 0: local input + u8 pwm1[9]; /* 0: current output + 1-8: lookup table */ + s8 temp8[11]; /* 0: local input 1: local high limit - 2: remote critical limit */ + 2: remote critical limit + 3-10: lookup table */ s16 temp11[4]; /* 0: remote input 1: remote low limit 2: remote high limit 3: remote offset */ u16 temp11u; /* remote input (unsigned) */ u8 temp2_crit_hyst; + u8 lut_temp_hyst; u8 alarms; bool pwm_highres; + bool lut_temp_highres; bool remote_unsigned; /* true if unsigned remote upper limits */ bool trutherm; }; @@ -227,6 +236,11 @@ static inline int temp8_from_reg(struct lm63_data *data, int nr) return TEMP8_FROM_REG(data->temp8[nr]); } +static inline int lut_temp_from_reg(struct lm63_data *data, int nr) +{ + return data->temp8[nr] * (data->lut_temp_highres ? 500 : 1000); +} + /* * Sysfs callback functions and files */ @@ -261,17 +275,19 @@ static ssize_t set_fan(struct device *dev, struct device_attribute *dummy, return count; } -static ssize_t show_pwm1(struct device *dev, struct device_attribute *dummy, +static ssize_t show_pwm1(struct device *dev, struct device_attribute *devattr, char *buf) { + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct lm63_data *data = lm63_update_device(dev); + int nr = attr->index; int pwm; if (data->pwm_highres) - pwm = data->pwm1_value; + pwm = data->pwm1[nr]; else - pwm = data->pwm1_value >= 2 * data->pwm1_freq ? - 255 : (data->pwm1_value * 255 + data->pwm1_freq) / + pwm = data->pwm1[nr] >= 2 * data->pwm1_freq ? + 255 : (data->pwm1[nr] * 255 + data->pwm1_freq) / (2 * data->pwm1_freq); return sprintf(buf, "%d\n", pwm); @@ -294,9 +310,9 @@ static ssize_t set_pwm1(struct device *dev, struct device_attribute *dummy, val = SENSORS_LIMIT(val, 0, 255); mutex_lock(&data->update_lock); - data->pwm1_value = data->pwm_highres ? val : - (val * data->pwm1_freq * 2 + 127) / 255; - i2c_smbus_write_byte_data(client, LM63_REG_PWM_VALUE, data->pwm1_value); + data->pwm1[0] = data->pwm_highres ? val : + (val * data->pwm1_freq * 2 + 127) / 255; + i2c_smbus_write_byte_data(client, LM63_REG_PWM_VALUE, data->pwm1[0]); mutex_unlock(&data->update_lock); return count; } @@ -333,6 +349,16 @@ static ssize_t show_remote_temp8(struct device *dev, + data->temp2_offset); } +static ssize_t show_lut_temp(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct lm63_data *data = lm63_update_device(dev); + return sprintf(buf, "%d\n", lut_temp_from_reg(data, attr->index) + + data->temp2_offset); +} + static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { @@ -440,6 +466,17 @@ static ssize_t show_temp2_crit_hyst(struct device *dev, - TEMP8_FROM_REG(data->temp2_crit_hyst)); } +static ssize_t show_lut_temp_hyst(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct lm63_data *data = lm63_update_device(dev); + + return sprintf(buf, "%d\n", lut_temp_from_reg(data, attr->index) + + data->temp2_offset + - TEMP8_FROM_REG(data->lut_temp_hyst)); +} + /* * And now the other way around, user-space provides an absolute * hysteresis value and we have to store a relative one @@ -574,8 +611,48 @@ static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan, set_fan, 1); -static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm1, set_pwm1); +static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm1, set_pwm1, 0); static DEVICE_ATTR(pwm1_enable, S_IRUGO, show_pwm1_enable, NULL); +static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IRUGO, show_pwm1, NULL, 1); +static SENSOR_DEVICE_ATTR(pwm1_auto_point1_temp, S_IRUGO, + show_lut_temp, NULL, 3); +static SENSOR_DEVICE_ATTR(pwm1_auto_point1_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 3); +static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IRUGO, show_pwm1, NULL, 2); +static SENSOR_DEVICE_ATTR(pwm1_auto_point2_temp, S_IRUGO, + show_lut_temp, NULL, 4); +static SENSOR_DEVICE_ATTR(pwm1_auto_point2_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 4); +static SENSOR_DEVICE_ATTR(pwm1_auto_point3_pwm, S_IRUGO, show_pwm1, NULL, 3); +static SENSOR_DEVICE_ATTR(pwm1_auto_point3_temp, S_IRUGO, + show_lut_temp, NULL, 5); +static SENSOR_DEVICE_ATTR(pwm1_auto_point3_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 5); +static SENSOR_DEVICE_ATTR(pwm1_auto_point4_pwm, S_IRUGO, show_pwm1, NULL, 4); +static SENSOR_DEVICE_ATTR(pwm1_auto_point4_temp, S_IRUGO, + show_lut_temp, NULL, 6); +static SENSOR_DEVICE_ATTR(pwm1_auto_point4_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 6); +static SENSOR_DEVICE_ATTR(pwm1_auto_point5_pwm, S_IRUGO, show_pwm1, NULL, 5); +static SENSOR_DEVICE_ATTR(pwm1_auto_point5_temp, S_IRUGO, + show_lut_temp, NULL, 7); +static SENSOR_DEVICE_ATTR(pwm1_auto_point5_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 7); +static SENSOR_DEVICE_ATTR(pwm1_auto_point6_pwm, S_IRUGO, show_pwm1, NULL, 6); +static SENSOR_DEVICE_ATTR(pwm1_auto_point6_temp, S_IRUGO, + show_lut_temp, NULL, 8); +static SENSOR_DEVICE_ATTR(pwm1_auto_point6_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 8); +static SENSOR_DEVICE_ATTR(pwm1_auto_point7_pwm, S_IRUGO, show_pwm1, NULL, 7); +static SENSOR_DEVICE_ATTR(pwm1_auto_point7_temp, S_IRUGO, + show_lut_temp, NULL, 9); +static SENSOR_DEVICE_ATTR(pwm1_auto_point7_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 9); +static SENSOR_DEVICE_ATTR(pwm1_auto_point8_pwm, S_IRUGO, show_pwm1, NULL, 8); +static SENSOR_DEVICE_ATTR(pwm1_auto_point8_temp, S_IRUGO, + show_lut_temp, NULL, 10); +static SENSOR_DEVICE_ATTR(pwm1_auto_point8_temp_hyst, S_IRUGO, + show_lut_temp_hyst, NULL, 10); static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_local_temp8, NULL, 0); static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_local_temp8, @@ -609,8 +686,33 @@ static DEVICE_ATTR(update_interval, S_IRUGO | S_IWUSR, show_update_interval, set_update_interval); static struct attribute *lm63_attributes[] = { - &dev_attr_pwm1.attr, + &sensor_dev_attr_pwm1.dev_attr.attr, &dev_attr_pwm1_enable.attr, + &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point2_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point3_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point4_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point5_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point6_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point6_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point6_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point7_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point7_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point7_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point8_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point8_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point8_temp_hyst.dev_attr.attr, + &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_temp2_input.dev_attr.attr, &sensor_dev_attr_temp2_min.dev_attr.attr, @@ -834,6 +936,8 @@ static void lm63_init_client(struct i2c_client *client) u8 config_enhanced = i2c_smbus_read_byte_data(client, LM96163_REG_CONFIG_ENHANCED); + if (config_enhanced & 0x20) + data->lut_temp_highres = true; if ((config_enhanced & 0x10) && !(data->config_fan & 0x08) && data->pwm1_freq == 8) data->pwm_highres = true; @@ -872,6 +976,7 @@ static struct lm63_data *lm63_update_device(struct device *dev) struct i2c_client *client = to_i2c_client(dev); struct lm63_data *data = i2c_get_clientdata(client); unsigned long next_update; + int i; mutex_lock(&data->update_lock); @@ -895,8 +1000,8 @@ static struct lm63_data *lm63_update_device(struct device *dev) LM63_REG_PWM_FREQ); if (data->pwm1_freq == 0) data->pwm1_freq = 1; - data->pwm1_value = i2c_smbus_read_byte_data(client, - LM63_REG_PWM_VALUE); + data->pwm1[0] = i2c_smbus_read_byte_data(client, + LM63_REG_PWM_VALUE); data->temp8[0] = i2c_smbus_read_byte_data(client, LM63_REG_LOCAL_TEMP); @@ -939,6 +1044,21 @@ static struct lm63_data *lm63_update_device(struct device *dev) data->valid = 1; } + if (time_after(jiffies, data->lut_last_updated + 5 * HZ) || + !data->lut_valid) { + for (i = 0; i < 8; i++) { + data->pwm1[1 + i] = i2c_smbus_read_byte_data(client, + LM63_REG_LUT_PWM(i)); + data->temp8[3 + i] = i2c_smbus_read_byte_data(client, + LM63_REG_LUT_TEMP(i)); + } + data->lut_temp_hyst = i2c_smbus_read_byte_data(client, + LM63_REG_LUT_TEMP_HYST); + + data->lut_last_updated = jiffies; + data->lut_valid = 1; + } + mutex_unlock(&data->update_lock); return data; |