diff options
| -rw-r--r-- | drivers/staging/iio/Documentation/sysfs-bus-iio-resolver-ad2s1210 | 27 | ||||
| -rw-r--r-- | drivers/staging/iio/resolver/ad2s1210.c | 99 |
2 files changed, 82 insertions, 44 deletions
diff --git a/drivers/staging/iio/Documentation/sysfs-bus-iio-resolver-ad2s1210 b/drivers/staging/iio/Documentation/sysfs-bus-iio-resolver-ad2s1210 new file mode 100644 index 000000000000..f92c79342b93 --- /dev/null +++ b/drivers/staging/iio/Documentation/sysfs-bus-iio-resolver-ad2s1210 @@ -0,0 +1,27 @@ +What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_max +KernelVersion: 6.7 +Contact: linux-iio@vger.kernel.org +Description: + Reading returns the current Degradation of Signal Reset Maximum + Threshold value in millivolts. Writing sets the value. + +What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_max_available +KernelVersion: 6.7 +Contact: linux-iio@vger.kernel.org +Description: + Reading returns the allowable voltage range for + in_altvoltage0_mag_rising_reset_max. + +What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_min +KernelVersion: 6.7 +Contact: linux-iio@vger.kernel.org +Description: + Reading returns the current Degradation of Signal Reset Minimum + Threshold value in millivolts. Writing sets the value. + +What: /sys/bus/iio/devices/iio:deviceX/events/in_altvoltage0_mag_rising_reset_min_available +KernelVersion: 6.7 +Contact: linux-iio@vger.kernel.org +Description: + Reading returns the allowable voltage range for + in_altvoltage0_mag_rising_reset_min. diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c index 870c4a9a6214..9fac806c2a5f 100644 --- a/drivers/staging/iio/resolver/ad2s1210.c +++ b/drivers/staging/iio/resolver/ad2s1210.c @@ -286,41 +286,6 @@ error_ret: return ret < 0 ? ret : len; } -static ssize_t ad2s1210_show_reg(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev)); - struct iio_dev_attr *iattr = to_iio_dev_attr(attr); - unsigned int value; - int ret; - - mutex_lock(&st->lock); - ret = regmap_read(st->regmap, iattr->address, &value); - mutex_unlock(&st->lock); - - return ret < 0 ? ret : sprintf(buf, "%d\n", value); -} - -static ssize_t ad2s1210_store_reg(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t len) -{ - struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev)); - unsigned char data; - int ret; - struct iio_dev_attr *iattr = to_iio_dev_attr(attr); - - ret = kstrtou8(buf, 10, &data); - if (ret) - return -EINVAL; - - mutex_lock(&st->lock); - ret = regmap_write(st->regmap, iattr->address, data); - mutex_unlock(&st->lock); - return ret < 0 ? ret : len; -} - static int ad2s1210_single_conversion(struct ad2s1210_state *st, struct iio_chan_spec const *chan, int *val) @@ -747,13 +712,6 @@ static int ad2s1210_write_raw(struct iio_dev *indio_dev, static IIO_DEVICE_ATTR(fault, 0644, ad2s1210_show_fault, ad2s1210_clear_fault, 0); -static IIO_DEVICE_ATTR(dos_rst_max_thrd, 0644, - ad2s1210_show_reg, ad2s1210_store_reg, - AD2S1210_REG_DOS_RST_MAX_THRD); -static IIO_DEVICE_ATTR(dos_rst_min_thrd, 0644, - ad2s1210_show_reg, ad2s1210_store_reg, - AD2S1210_REG_DOS_RST_MIN_THRD); - static const struct iio_event_spec ad2s1210_position_event_spec[] = { { /* Tracking error exceeds LOT threshold fault. */ @@ -871,8 +829,6 @@ static const struct iio_chan_spec ad2s1210_channels[] = { static struct attribute *ad2s1210_attributes[] = { &iio_dev_attr_fault.dev_attr.attr, - &iio_dev_attr_dos_rst_max_thrd.dev_attr.attr, - &iio_dev_attr_dos_rst_min_thrd.dev_attr.attr, NULL, }; @@ -880,6 +836,49 @@ static const struct attribute_group ad2s1210_attribute_group = { .attrs = ad2s1210_attributes, }; +static ssize_t event_attr_voltage_reg_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev)); + struct iio_dev_attr *iattr = to_iio_dev_attr(attr); + unsigned int value; + int ret; + + mutex_lock(&st->lock); + ret = regmap_read(st->regmap, iattr->address, &value); + mutex_unlock(&st->lock); + + if (ret < 0) + return ret; + + return sprintf(buf, "%d\n", value * THRESHOLD_MILLIVOLT_PER_LSB); +} + +static ssize_t event_attr_voltage_reg_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t len) +{ + struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev)); + struct iio_dev_attr *iattr = to_iio_dev_attr(attr); + u16 data; + int ret; + + ret = kstrtou16(buf, 10, &data); + if (ret) + return -EINVAL; + + mutex_lock(&st->lock); + ret = regmap_write(st->regmap, iattr->address, + data / THRESHOLD_MILLIVOLT_PER_LSB); + mutex_unlock(&st->lock); + + if (ret < 0) + return ret; + + return len; +} + static ssize_t in_angl1_thresh_rising_value_available_show(struct device *dev, struct device_attribute *attr, @@ -913,6 +912,14 @@ static IIO_CONST_ATTR(in_altvoltage0_thresh_rising_value_available, THRESHOLD_RANGE_STR); static IIO_CONST_ATTR(in_altvoltage0_mag_rising_value_available, THRESHOLD_RANGE_STR); +static IIO_DEVICE_ATTR(in_altvoltage0_mag_rising_reset_max, 0644, + event_attr_voltage_reg_show, event_attr_voltage_reg_store, + AD2S1210_REG_DOS_RST_MAX_THRD); +static IIO_CONST_ATTR(in_altvoltage0_mag_rising_reset_max_available, THRESHOLD_RANGE_STR); +static IIO_DEVICE_ATTR(in_altvoltage0_mag_rising_reset_min, 0644, + event_attr_voltage_reg_show, event_attr_voltage_reg_store, + AD2S1210_REG_DOS_RST_MIN_THRD); +static IIO_CONST_ATTR(in_altvoltage0_mag_rising_reset_min_available, THRESHOLD_RANGE_STR); static IIO_DEVICE_ATTR_RO(in_angl1_thresh_rising_value_available, 0); static IIO_DEVICE_ATTR_RO(in_angl1_thresh_rising_hysteresis_available, 0); @@ -921,6 +928,10 @@ static struct attribute *ad2s1210_event_attributes[] = { &iio_const_attr_in_altvoltage0_thresh_falling_value_available.dev_attr.attr, &iio_const_attr_in_altvoltage0_thresh_rising_value_available.dev_attr.attr, &iio_const_attr_in_altvoltage0_mag_rising_value_available.dev_attr.attr, + &iio_dev_attr_in_altvoltage0_mag_rising_reset_max.dev_attr.attr, + &iio_const_attr_in_altvoltage0_mag_rising_reset_max_available.dev_attr.attr, + &iio_dev_attr_in_altvoltage0_mag_rising_reset_min.dev_attr.attr, + &iio_const_attr_in_altvoltage0_mag_rising_reset_min_available.dev_attr.attr, &iio_dev_attr_in_angl1_thresh_rising_value_available.dev_attr.attr, &iio_dev_attr_in_angl1_thresh_rising_hysteresis_available.dev_attr.attr, NULL, |