X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fhwmon%2Fmax31790.c;h=bef84e08597307893b699a854b7d97b94dca234c;hb=997b611baf7591ea5119539ee821a3e2f4fcf24e;hp=69c0ac80a946323f8664be96e9a38381a0e9a7a2;hpb=f1b4b51184109305e4e5b7a047faa5270a953ee8;p=cascardo%2Flinux.git diff --git a/drivers/hwmon/max31790.c b/drivers/hwmon/max31790.c index 69c0ac80a946..bef84e085973 100644 --- a/drivers/hwmon/max31790.c +++ b/drivers/hwmon/max31790.c @@ -17,7 +17,6 @@ #include #include -#include #include #include #include @@ -169,362 +168,288 @@ static u8 bits_for_tach_period(int rpm) return bits; } -static ssize_t get_fan(struct device *dev, - struct device_attribute *devattr, char *buf) +static int max31790_read_fan(struct device *dev, u32 attr, int channel, + long *val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct max31790_data *data = max31790_update_device(dev); int sr, rpm; if (IS_ERR(data)) return PTR_ERR(data); - sr = get_tach_period(data->fan_dynamics[attr->index]); - rpm = RPM_FROM_REG(data->tach[attr->index], sr); - - return sprintf(buf, "%d\n", rpm); -} - -static ssize_t get_fan_target(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct max31790_data *data = max31790_update_device(dev); - int sr, rpm; - - if (IS_ERR(data)) - return PTR_ERR(data); - - sr = get_tach_period(data->fan_dynamics[attr->index]); - rpm = RPM_FROM_REG(data->target_count[attr->index], sr); - - return sprintf(buf, "%d\n", rpm); + switch (attr) { + case hwmon_fan_input: + sr = get_tach_period(data->fan_dynamics[channel]); + rpm = RPM_FROM_REG(data->tach[channel], sr); + *val = rpm; + return 0; + case hwmon_fan_target: + sr = get_tach_period(data->fan_dynamics[channel]); + rpm = RPM_FROM_REG(data->target_count[channel], sr); + *val = rpm; + return 0; + case hwmon_fan_fault: + *val = !!(data->fault_status & (1 << channel)); + return 0; + default: + return -EOPNOTSUPP; + } } -static ssize_t set_fan_target(struct device *dev, - struct device_attribute *devattr, - const char *buf, size_t count) +static int max31790_write_fan(struct device *dev, u32 attr, int channel, + long val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct max31790_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; + int target_count; + int err = 0; u8 bits; int sr; - int target_count; - unsigned long rpm; - int err; - - err = kstrtoul(buf, 10, &rpm); - if (err) - return err; mutex_lock(&data->update_lock); - rpm = clamp_val(rpm, FAN_RPM_MIN, FAN_RPM_MAX); - bits = bits_for_tach_period(rpm); - data->fan_dynamics[attr->index] = - ((data->fan_dynamics[attr->index] - & ~MAX31790_FAN_DYN_SR_MASK) - | (bits << MAX31790_FAN_DYN_SR_SHIFT)); - err = i2c_smbus_write_byte_data(client, - MAX31790_REG_FAN_DYNAMICS(attr->index), - data->fan_dynamics[attr->index]); - - if (err < 0) { - mutex_unlock(&data->update_lock); - return err; + switch (attr) { + case hwmon_fan_target: + val = clamp_val(val, FAN_RPM_MIN, FAN_RPM_MAX); + bits = bits_for_tach_period(val); + data->fan_dynamics[channel] = + ((data->fan_dynamics[channel] & + ~MAX31790_FAN_DYN_SR_MASK) | + (bits << MAX31790_FAN_DYN_SR_SHIFT)); + err = i2c_smbus_write_byte_data(client, + MAX31790_REG_FAN_DYNAMICS(channel), + data->fan_dynamics[channel]); + if (err < 0) + break; + + sr = get_tach_period(data->fan_dynamics[channel]); + target_count = RPM_TO_REG(val, sr); + target_count = clamp_val(target_count, 0x1, 0x7FF); + + data->target_count[channel] = target_count << 5; + + err = i2c_smbus_write_word_swapped(client, + MAX31790_REG_TARGET_COUNT(channel), + data->target_count[channel]); + break; + default: + err = -EOPNOTSUPP; + break; } - sr = get_tach_period(data->fan_dynamics[attr->index]); - target_count = RPM_TO_REG(rpm, sr); - target_count = clamp_val(target_count, 0x1, 0x7FF); - - data->target_count[attr->index] = target_count << 5; - - err = i2c_smbus_write_word_swapped(client, - MAX31790_REG_TARGET_COUNT(attr->index), - data->target_count[attr->index]); - mutex_unlock(&data->update_lock); - if (err < 0) - return err; + return err; +} - return count; +static umode_t max31790_fan_is_visible(const void *_data, u32 attr, int channel) +{ + const struct max31790_data *data = _data; + u8 fan_config = data->fan_config[channel % NR_CHANNEL]; + + switch (attr) { + case hwmon_fan_input: + case hwmon_fan_fault: + if (channel < NR_CHANNEL || + (fan_config & MAX31790_FAN_CFG_TACH_INPUT)) + return S_IRUGO; + return 0; + case hwmon_fan_target: + if (channel < NR_CHANNEL && + !(fan_config & MAX31790_FAN_CFG_TACH_INPUT)) + return S_IRUGO | S_IWUSR; + return 0; + default: + return 0; + } } -static ssize_t get_pwm(struct device *dev, - struct device_attribute *devattr, char *buf) +static int max31790_read_pwm(struct device *dev, u32 attr, int channel, + long *val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct max31790_data *data = max31790_update_device(dev); - int pwm; + u8 fan_config = data->fan_config[channel]; if (IS_ERR(data)) return PTR_ERR(data); - pwm = data->pwm[attr->index] >> 8; - - return sprintf(buf, "%d\n", pwm); + switch (attr) { + case hwmon_pwm_input: + *val = data->pwm[channel] >> 8; + return 0; + case hwmon_pwm_enable: + if (fan_config & MAX31790_FAN_CFG_RPM_MODE) + *val = 2; + else if (fan_config & MAX31790_FAN_CFG_TACH_INPUT_EN) + *val = 1; + else + *val = 0; + return 0; + default: + return -EOPNOTSUPP; + } } -static ssize_t set_pwm(struct device *dev, - struct device_attribute *devattr, - const char *buf, size_t count) +static int max31790_write_pwm(struct device *dev, u32 attr, int channel, + long val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct max31790_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; - unsigned long pwm; - int err; - - err = kstrtoul(buf, 10, &pwm); - if (err) - return err; - - if (pwm > 255) - return -EINVAL; + u8 fan_config; + int err = 0; mutex_lock(&data->update_lock); - data->pwm[attr->index] = pwm << 8; - err = i2c_smbus_write_word_swapped(client, - MAX31790_REG_PWMOUT(attr->index), - data->pwm[attr->index]); + switch (attr) { + case hwmon_pwm_input: + if (val < 0 || val > 255) { + err = -EINVAL; + break; + } + data->pwm[channel] = val << 8; + err = i2c_smbus_write_word_swapped(client, + MAX31790_REG_PWMOUT(channel), + val); + break; + case hwmon_pwm_enable: + fan_config = data->fan_config[channel]; + if (val == 0) { + fan_config &= ~(MAX31790_FAN_CFG_TACH_INPUT_EN | + MAX31790_FAN_CFG_RPM_MODE); + } else if (val == 1) { + fan_config = (fan_config | + MAX31790_FAN_CFG_TACH_INPUT_EN) & + ~MAX31790_FAN_CFG_RPM_MODE; + } else if (val == 2) { + fan_config |= MAX31790_FAN_CFG_TACH_INPUT_EN | + MAX31790_FAN_CFG_RPM_MODE; + } else { + err = -EINVAL; + break; + } + data->fan_config[channel] = fan_config; + err = i2c_smbus_write_byte_data(client, + MAX31790_REG_FAN_CONFIG(channel), + fan_config); + break; + default: + err = -EOPNOTSUPP; + break; + } mutex_unlock(&data->update_lock); - if (err < 0) - return err; - - return count; + return err; } -static ssize_t get_pwm_enable(struct device *dev, - struct device_attribute *devattr, char *buf) +static umode_t max31790_pwm_is_visible(const void *_data, u32 attr, int channel) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct max31790_data *data = max31790_update_device(dev); - int mode; - - if (IS_ERR(data)) - return PTR_ERR(data); - - if (data->fan_config[attr->index] & MAX31790_FAN_CFG_RPM_MODE) - mode = 2; - else if (data->fan_config[attr->index] & MAX31790_FAN_CFG_TACH_INPUT_EN) - mode = 1; - else - mode = 0; - - return sprintf(buf, "%d\n", mode); + const struct max31790_data *data = _data; + u8 fan_config = data->fan_config[channel]; + + switch (attr) { + case hwmon_pwm_input: + case hwmon_pwm_enable: + if (!(fan_config & MAX31790_FAN_CFG_TACH_INPUT)) + return S_IRUGO | S_IWUSR; + return 0; + default: + return 0; + } } -static ssize_t set_pwm_enable(struct device *dev, - struct device_attribute *devattr, - const char *buf, size_t count) +static int max31790_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct max31790_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - unsigned long mode; - int err; - - err = kstrtoul(buf, 10, &mode); - if (err) - return err; - - switch (mode) { - case 0: - data->fan_config[attr->index] = - data->fan_config[attr->index] - & ~(MAX31790_FAN_CFG_TACH_INPUT_EN - | MAX31790_FAN_CFG_RPM_MODE); - break; - case 1: - data->fan_config[attr->index] = - (data->fan_config[attr->index] - | MAX31790_FAN_CFG_TACH_INPUT_EN) - & ~MAX31790_FAN_CFG_RPM_MODE; - break; - case 2: - data->fan_config[attr->index] = - data->fan_config[attr->index] - | MAX31790_FAN_CFG_TACH_INPUT_EN - | MAX31790_FAN_CFG_RPM_MODE; - break; + switch (type) { + case hwmon_fan: + return max31790_read_fan(dev, attr, channel, val); + case hwmon_pwm: + return max31790_read_pwm(dev, attr, channel, val); default: - return -EINVAL; + return -EOPNOTSUPP; } - - mutex_lock(&data->update_lock); - - err = i2c_smbus_write_byte_data(client, - MAX31790_REG_FAN_CONFIG(attr->index), - data->fan_config[attr->index]); - - mutex_unlock(&data->update_lock); - - if (err < 0) - return err; - - return count; } -static ssize_t get_fan_fault(struct device *dev, - struct device_attribute *devattr, char *buf) +static int max31790_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct max31790_data *data = max31790_update_device(dev); - int fault; - - if (IS_ERR(data)) - return PTR_ERR(data); - - fault = !!(data->fault_status & (1 << attr->index)); + switch (type) { + case hwmon_fan: + return max31790_write_fan(dev, attr, channel, val); + case hwmon_pwm: + return max31790_write_pwm(dev, attr, channel, val); + default: + return -EOPNOTSUPP; + } +} - return sprintf(buf, "%d\n", fault); +static umode_t max31790_is_visible(const void *data, + enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_fan: + return max31790_fan_is_visible(data, attr, channel); + case hwmon_pwm: + return max31790_pwm_is_visible(data, attr, channel); + default: + return 0; + } } -static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, get_fan, NULL, 0); -static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, get_fan, NULL, 1); -static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, get_fan, NULL, 2); -static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, get_fan, NULL, 3); -static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, get_fan, NULL, 4); -static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, get_fan, NULL, 5); - -static SENSOR_DEVICE_ATTR(fan1_fault, S_IRUGO, get_fan_fault, NULL, 0); -static SENSOR_DEVICE_ATTR(fan2_fault, S_IRUGO, get_fan_fault, NULL, 1); -static SENSOR_DEVICE_ATTR(fan3_fault, S_IRUGO, get_fan_fault, NULL, 2); -static SENSOR_DEVICE_ATTR(fan4_fault, S_IRUGO, get_fan_fault, NULL, 3); -static SENSOR_DEVICE_ATTR(fan5_fault, S_IRUGO, get_fan_fault, NULL, 4); -static SENSOR_DEVICE_ATTR(fan6_fault, S_IRUGO, get_fan_fault, NULL, 5); - -static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, get_fan, NULL, 6); -static SENSOR_DEVICE_ATTR(fan8_input, S_IRUGO, get_fan, NULL, 7); -static SENSOR_DEVICE_ATTR(fan9_input, S_IRUGO, get_fan, NULL, 8); -static SENSOR_DEVICE_ATTR(fan10_input, S_IRUGO, get_fan, NULL, 9); -static SENSOR_DEVICE_ATTR(fan11_input, S_IRUGO, get_fan, NULL, 10); -static SENSOR_DEVICE_ATTR(fan12_input, S_IRUGO, get_fan, NULL, 11); - -static SENSOR_DEVICE_ATTR(fan7_fault, S_IRUGO, get_fan_fault, NULL, 6); -static SENSOR_DEVICE_ATTR(fan8_fault, S_IRUGO, get_fan_fault, NULL, 7); -static SENSOR_DEVICE_ATTR(fan9_fault, S_IRUGO, get_fan_fault, NULL, 8); -static SENSOR_DEVICE_ATTR(fan10_fault, S_IRUGO, get_fan_fault, NULL, 9); -static SENSOR_DEVICE_ATTR(fan11_fault, S_IRUGO, get_fan_fault, NULL, 10); -static SENSOR_DEVICE_ATTR(fan12_fault, S_IRUGO, get_fan_fault, NULL, 11); - -static SENSOR_DEVICE_ATTR(fan1_target, S_IWUSR | S_IRUGO, - get_fan_target, set_fan_target, 0); -static SENSOR_DEVICE_ATTR(fan2_target, S_IWUSR | S_IRUGO, - get_fan_target, set_fan_target, 1); -static SENSOR_DEVICE_ATTR(fan3_target, S_IWUSR | S_IRUGO, - get_fan_target, set_fan_target, 2); -static SENSOR_DEVICE_ATTR(fan4_target, S_IWUSR | S_IRUGO, - get_fan_target, set_fan_target, 3); -static SENSOR_DEVICE_ATTR(fan5_target, S_IWUSR | S_IRUGO, - get_fan_target, set_fan_target, 4); -static SENSOR_DEVICE_ATTR(fan6_target, S_IWUSR | S_IRUGO, - get_fan_target, set_fan_target, 5); - -static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 0); -static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 1); -static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 2); -static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 3); -static SENSOR_DEVICE_ATTR(pwm5, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 4); -static SENSOR_DEVICE_ATTR(pwm6, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 5); - -static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, - get_pwm_enable, set_pwm_enable, 0); -static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, - get_pwm_enable, set_pwm_enable, 1); -static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, - get_pwm_enable, set_pwm_enable, 2); -static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, - get_pwm_enable, set_pwm_enable, 3); -static SENSOR_DEVICE_ATTR(pwm5_enable, S_IWUSR | S_IRUGO, - get_pwm_enable, set_pwm_enable, 4); -static SENSOR_DEVICE_ATTR(pwm6_enable, S_IWUSR | S_IRUGO, - get_pwm_enable, set_pwm_enable, 5); - -static struct attribute *max31790_attrs[] = { - &sensor_dev_attr_fan1_input.dev_attr.attr, - &sensor_dev_attr_fan2_input.dev_attr.attr, - &sensor_dev_attr_fan3_input.dev_attr.attr, - &sensor_dev_attr_fan4_input.dev_attr.attr, - &sensor_dev_attr_fan5_input.dev_attr.attr, - &sensor_dev_attr_fan6_input.dev_attr.attr, - - &sensor_dev_attr_fan1_fault.dev_attr.attr, - &sensor_dev_attr_fan2_fault.dev_attr.attr, - &sensor_dev_attr_fan3_fault.dev_attr.attr, - &sensor_dev_attr_fan4_fault.dev_attr.attr, - &sensor_dev_attr_fan5_fault.dev_attr.attr, - &sensor_dev_attr_fan6_fault.dev_attr.attr, - - &sensor_dev_attr_fan7_input.dev_attr.attr, - &sensor_dev_attr_fan8_input.dev_attr.attr, - &sensor_dev_attr_fan9_input.dev_attr.attr, - &sensor_dev_attr_fan10_input.dev_attr.attr, - &sensor_dev_attr_fan11_input.dev_attr.attr, - &sensor_dev_attr_fan12_input.dev_attr.attr, - - &sensor_dev_attr_fan7_fault.dev_attr.attr, - &sensor_dev_attr_fan8_fault.dev_attr.attr, - &sensor_dev_attr_fan9_fault.dev_attr.attr, - &sensor_dev_attr_fan10_fault.dev_attr.attr, - &sensor_dev_attr_fan11_fault.dev_attr.attr, - &sensor_dev_attr_fan12_fault.dev_attr.attr, - - &sensor_dev_attr_fan1_target.dev_attr.attr, - &sensor_dev_attr_fan2_target.dev_attr.attr, - &sensor_dev_attr_fan3_target.dev_attr.attr, - &sensor_dev_attr_fan4_target.dev_attr.attr, - &sensor_dev_attr_fan5_target.dev_attr.attr, - &sensor_dev_attr_fan6_target.dev_attr.attr, - - &sensor_dev_attr_pwm1.dev_attr.attr, - &sensor_dev_attr_pwm2.dev_attr.attr, - &sensor_dev_attr_pwm3.dev_attr.attr, - &sensor_dev_attr_pwm4.dev_attr.attr, - &sensor_dev_attr_pwm5.dev_attr.attr, - &sensor_dev_attr_pwm6.dev_attr.attr, - - &sensor_dev_attr_pwm1_enable.dev_attr.attr, - &sensor_dev_attr_pwm2_enable.dev_attr.attr, - &sensor_dev_attr_pwm3_enable.dev_attr.attr, - &sensor_dev_attr_pwm4_enable.dev_attr.attr, - &sensor_dev_attr_pwm5_enable.dev_attr.attr, - &sensor_dev_attr_pwm6_enable.dev_attr.attr, - NULL +static const u32 max31790_fan_config[] = { + HWMON_F_INPUT | HWMON_F_TARGET | HWMON_F_FAULT, + HWMON_F_INPUT | HWMON_F_TARGET | HWMON_F_FAULT, + HWMON_F_INPUT | HWMON_F_TARGET | HWMON_F_FAULT, + HWMON_F_INPUT | HWMON_F_TARGET | HWMON_F_FAULT, + HWMON_F_INPUT | HWMON_F_TARGET | HWMON_F_FAULT, + HWMON_F_INPUT | HWMON_F_TARGET | HWMON_F_FAULT, + HWMON_F_INPUT | HWMON_F_FAULT, + HWMON_F_INPUT | HWMON_F_FAULT, + HWMON_F_INPUT | HWMON_F_FAULT, + HWMON_F_INPUT | HWMON_F_FAULT, + HWMON_F_INPUT | HWMON_F_FAULT, + HWMON_F_INPUT | HWMON_F_FAULT, + 0 }; -static umode_t max31790_attrs_visible(struct kobject *kobj, - struct attribute *a, int n) -{ - struct device *dev = container_of(kobj, struct device, kobj); - struct max31790_data *data = dev_get_drvdata(dev); - struct device_attribute *devattr = - container_of(a, struct device_attribute, attr); - int index = to_sensor_dev_attr(devattr)->index % NR_CHANNEL; - u8 fan_config; +static const struct hwmon_channel_info max31790_fan = { + .type = hwmon_fan, + .config = max31790_fan_config, +}; - fan_config = data->fan_config[index]; +static const u32 max31790_pwm_config[] = { + HWMON_PWM_INPUT | HWMON_PWM_ENABLE, + HWMON_PWM_INPUT | HWMON_PWM_ENABLE, + HWMON_PWM_INPUT | HWMON_PWM_ENABLE, + HWMON_PWM_INPUT | HWMON_PWM_ENABLE, + HWMON_PWM_INPUT | HWMON_PWM_ENABLE, + HWMON_PWM_INPUT | HWMON_PWM_ENABLE, + 0 +}; - if (n >= NR_CHANNEL * 2 && n < NR_CHANNEL * 4 && - !(fan_config & MAX31790_FAN_CFG_TACH_INPUT)) - return 0; - if (n >= NR_CHANNEL * 4 && (fan_config & MAX31790_FAN_CFG_TACH_INPUT)) - return 0; +static const struct hwmon_channel_info max31790_pwm = { + .type = hwmon_pwm, + .config = max31790_pwm_config, +}; - return a->mode; -} +static const struct hwmon_channel_info *max31790_info[] = { + &max31790_fan, + &max31790_pwm, + NULL +}; + +static const struct hwmon_ops max31790_hwmon_ops = { + .is_visible = max31790_is_visible, + .read = max31790_read, + .write = max31790_write, +}; -static const struct attribute_group max31790_group = { - .attrs = max31790_attrs, - .is_visible = max31790_attrs_visible, +static const struct hwmon_chip_info max31790_chip_info = { + .ops = &max31790_hwmon_ops, + .info = max31790_info, }; -__ATTRIBUTE_GROUPS(max31790); static int max31790_init_client(struct i2c_client *client, struct max31790_data *data) @@ -575,8 +500,10 @@ static int max31790_probe(struct i2c_client *client, if (err) return err; - hwmon_dev = devm_hwmon_device_register_with_groups(dev, - client->name, data, max31790_groups); + hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, + data, + &max31790_chip_info, + NULL); return PTR_ERR_OR_ZERO(hwmon_dev); }