mirror of https://gitee.com/openkylin/linux.git
staging:iio:adc:ad799x use the core handling for as much of the events as possible.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jonathan Cameron
Greg Kroah-Hartman
parent
f2a634291e
commit
231c5c3b8b
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@ -235,6 +235,61 @@ static ssize_t ad799x_write_frequency(struct device *dev,
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return ret ? ret : len;
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}
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static int ad799x_read_event_config(struct iio_dev *dev_info,
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u64 event_code)
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{
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return 1;
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}
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static const u8 ad799x_threshold_addresses[][2] = {
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{ AD7998_DATALOW_CH1_REG, AD7998_DATAHIGH_CH1_REG },
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{ AD7998_DATALOW_CH2_REG, AD7998_DATAHIGH_CH2_REG },
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{ AD7998_DATALOW_CH3_REG, AD7998_DATAHIGH_CH3_REG },
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{ AD7998_DATALOW_CH4_REG, AD7998_DATAHIGH_CH4_REG },
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};
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static int ad799x_write_event_value(struct iio_dev *indio_dev,
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u64 event_code,
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int val)
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{
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int ret;
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struct ad799x_state *st = iio_priv(indio_dev);
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int direction = !!(IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==
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IIO_EV_DIR_FALLING);
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int number = IIO_EVENT_CODE_EXTRACT_NUM(event_code);
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mutex_lock(&indio_dev->mlock);
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ret = ad799x_i2c_write16(st,
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ad799x_threshold_addresses[number][direction],
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val);
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mutex_unlock(&indio_dev->mlock);
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return ret;
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}
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static int ad799x_read_event_value(struct iio_dev *indio_dev,
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u64 event_code,
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int *val)
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{
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int ret;
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struct ad799x_state *st = iio_priv(indio_dev);
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int direction = !!(IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==
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IIO_EV_DIR_FALLING);
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int number = IIO_EVENT_CODE_EXTRACT_NUM(event_code);
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u16 valin;
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mutex_lock(&indio_dev->mlock);
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ret = ad799x_i2c_read16(st,
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ad799x_threshold_addresses[number][direction],
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&valin);
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mutex_unlock(&indio_dev->mlock);
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if (ret < 0)
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return ret;
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*val = valin;
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return 0;
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}
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static ssize_t ad799x_read_channel_config(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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@ -309,72 +364,24 @@ static irqreturn_t ad799x_event_handler(int irq, void *private)
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return IRQ_HANDLED;
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}
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static IIO_DEVICE_ATTR(in_voltage0_thresh_low_value,
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S_IRUGO | S_IWUSR,
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ad799x_read_channel_config,
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ad799x_write_channel_config,
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AD7998_DATALOW_CH1_REG);
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static IIO_DEVICE_ATTR(in_voltage0_thresh_high_value,
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S_IRUGO | S_IWUSR,
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ad799x_read_channel_config,
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ad799x_write_channel_config,
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AD7998_DATAHIGH_CH1_REG);
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static IIO_DEVICE_ATTR(in_voltage0_thresh_both_hyst_raw,
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S_IRUGO | S_IWUSR,
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ad799x_read_channel_config,
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ad799x_write_channel_config,
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AD7998_HYST_CH1_REG);
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static IIO_DEVICE_ATTR(in_voltage1_thresh_low_value,
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S_IRUGO | S_IWUSR,
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ad799x_read_channel_config,
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ad799x_write_channel_config,
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AD7998_DATALOW_CH2_REG);
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static IIO_DEVICE_ATTR(in_voltage1_thresh_high_value,
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S_IRUGO | S_IWUSR,
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ad799x_read_channel_config,
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ad799x_write_channel_config,
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AD7998_DATAHIGH_CH2_REG);
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static IIO_DEVICE_ATTR(in_voltage1_thresh_both_hyst_raw,
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S_IRUGO | S_IWUSR,
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ad799x_read_channel_config,
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ad799x_write_channel_config,
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AD7998_HYST_CH2_REG);
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static IIO_DEVICE_ATTR(in_voltage2_thresh_low_value,
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S_IRUGO | S_IWUSR,
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ad799x_read_channel_config,
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ad799x_write_channel_config,
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AD7998_DATALOW_CH3_REG);
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static IIO_DEVICE_ATTR(in_voltage2_thresh_high_value,
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S_IRUGO | S_IWUSR,
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ad799x_read_channel_config,
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ad799x_write_channel_config,
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AD7998_DATAHIGH_CH3_REG);
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static IIO_DEVICE_ATTR(in_voltage2_thresh_both_hyst_raw,
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S_IRUGO | S_IWUSR,
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ad799x_read_channel_config,
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ad799x_write_channel_config,
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AD7998_HYST_CH3_REG);
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static IIO_DEVICE_ATTR(in_voltage3_thresh_low_value,
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S_IRUGO | S_IWUSR,
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ad799x_read_channel_config,
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ad799x_write_channel_config,
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AD7998_DATALOW_CH4_REG);
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static IIO_DEVICE_ATTR(in_voltage3_thresh_high_value,
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S_IRUGO | S_IWUSR,
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ad799x_read_channel_config,
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ad799x_write_channel_config,
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AD7998_DATAHIGH_CH4_REG);
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static IIO_DEVICE_ATTR(in_voltage3_thresh_both_hyst_raw,
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S_IRUGO | S_IWUSR,
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ad799x_read_channel_config,
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@ -387,17 +394,9 @@ static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
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static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("15625 7812 3906 1953 976 488 244 0");
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static struct attribute *ad7993_4_7_8_event_attributes[] = {
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&iio_dev_attr_in_voltage0_thresh_low_value.dev_attr.attr,
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&iio_dev_attr_in_voltage0_thresh_high_value.dev_attr.attr,
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&iio_dev_attr_in_voltage0_thresh_both_hyst_raw.dev_attr.attr,
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&iio_dev_attr_in_voltage1_thresh_low_value.dev_attr.attr,
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&iio_dev_attr_in_voltage1_thresh_high_value.dev_attr.attr,
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&iio_dev_attr_in_voltage1_thresh_both_hyst_raw.dev_attr.attr,
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&iio_dev_attr_in_voltage2_thresh_low_value.dev_attr.attr,
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&iio_dev_attr_in_voltage2_thresh_high_value.dev_attr.attr,
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&iio_dev_attr_in_voltage2_thresh_both_hyst_raw.dev_attr.attr,
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&iio_dev_attr_in_voltage3_thresh_low_value.dev_attr.attr,
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&iio_dev_attr_in_voltage3_thresh_high_value.dev_attr.attr,
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&iio_dev_attr_in_voltage3_thresh_both_hyst_raw.dev_attr.attr,
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&iio_dev_attr_sampling_frequency.dev_attr.attr,
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&iio_const_attr_sampling_frequency_available.dev_attr.attr,
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@ -410,11 +409,7 @@ static struct attribute_group ad7993_4_7_8_event_attrs_group = {
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};
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static struct attribute *ad7992_event_attributes[] = {
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&iio_dev_attr_in_voltage0_thresh_low_value.dev_attr.attr,
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&iio_dev_attr_in_voltage0_thresh_high_value.dev_attr.attr,
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&iio_dev_attr_in_voltage0_thresh_both_hyst_raw.dev_attr.attr,
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&iio_dev_attr_in_voltage1_thresh_low_value.dev_attr.attr,
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&iio_dev_attr_in_voltage1_thresh_high_value.dev_attr.attr,
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&iio_dev_attr_in_voltage1_thresh_both_hyst_raw.dev_attr.attr,
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&iio_dev_attr_sampling_frequency.dev_attr.attr,
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&iio_const_attr_sampling_frequency_available.dev_attr.attr,
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@ -434,15 +429,24 @@ static const struct iio_info ad7991_info = {
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static const struct iio_info ad7992_info = {
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.read_raw = &ad799x_read_raw,
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.event_attrs = &ad7992_event_attrs_group,
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.read_event_config = &ad799x_read_event_config,
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.read_event_value = &ad799x_read_event_value,
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.write_event_value = &ad799x_write_event_value,
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.driver_module = THIS_MODULE,
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};
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static const struct iio_info ad7993_4_7_8_info = {
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.read_raw = &ad799x_read_raw,
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.event_attrs = &ad7993_4_7_8_event_attrs_group,
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.read_event_config = &ad799x_read_event_config,
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.read_event_value = &ad799x_read_event_value,
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.write_event_value = &ad799x_write_event_value,
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.driver_module = THIS_MODULE,
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};
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#define AD799X_EV_MASK (IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING) | \
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IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING))
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static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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[ad7991] = {
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.channel = {
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@ -573,6 +577,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 0,
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.scan_index = 0,
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.scan_type = IIO_ST('u', 12, 16, 0),
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.event_mask = AD799X_EV_MASK,
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},
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[1] = {
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.type = IIO_VOLTAGE,
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@ -581,6 +586,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 1,
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.scan_index = 1,
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.scan_type = IIO_ST('u', 12, 16, 0),
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.event_mask = AD799X_EV_MASK,
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},
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[2] = IIO_CHAN_SOFT_TIMESTAMP(2),
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},
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@ -598,6 +604,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 0,
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.scan_index = 0,
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.scan_type = IIO_ST('u', 10, 16, 2),
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.event_mask = AD799X_EV_MASK,
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},
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[1] = {
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.type = IIO_VOLTAGE,
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@ -606,6 +613,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 1,
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.scan_index = 1,
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.scan_type = IIO_ST('u', 10, 16, 2),
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.event_mask = AD799X_EV_MASK,
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},
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[2] = {
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.type = IIO_VOLTAGE,
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@ -614,6 +622,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 2,
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.scan_index = 2,
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.scan_type = IIO_ST('u', 10, 16, 2),
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.event_mask = AD799X_EV_MASK,
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},
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[3] = {
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.type = IIO_VOLTAGE,
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@ -622,6 +631,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 3,
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.scan_index = 3,
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.scan_type = IIO_ST('u', 10, 16, 2),
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.event_mask = AD799X_EV_MASK,
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},
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[4] = IIO_CHAN_SOFT_TIMESTAMP(4),
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},
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@ -639,6 +649,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 0,
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.scan_index = 0,
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.scan_type = IIO_ST('u', 12, 16, 0),
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.event_mask = AD799X_EV_MASK,
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},
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[1] = {
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.type = IIO_VOLTAGE,
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@ -647,6 +658,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 1,
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.scan_index = 1,
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.scan_type = IIO_ST('u', 12, 16, 0),
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.event_mask = AD799X_EV_MASK,
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},
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[2] = {
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.type = IIO_VOLTAGE,
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@ -655,6 +667,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 2,
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.scan_index = 2,
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.scan_type = IIO_ST('u', 12, 16, 0),
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.event_mask = AD799X_EV_MASK,
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},
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[3] = {
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.type = IIO_VOLTAGE,
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@ -663,6 +676,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 3,
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.scan_index = 3,
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.scan_type = IIO_ST('u', 12, 16, 0),
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.event_mask = AD799X_EV_MASK,
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},
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[4] = IIO_CHAN_SOFT_TIMESTAMP(4),
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},
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@ -680,6 +694,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 0,
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.scan_index = 0,
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.scan_type = IIO_ST('u', 10, 16, 2),
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.event_mask = AD799X_EV_MASK,
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},
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[1] = {
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.type = IIO_VOLTAGE,
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@ -688,6 +703,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 1,
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.scan_index = 1,
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.scan_type = IIO_ST('u', 10, 16, 2),
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.event_mask = AD799X_EV_MASK,
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},
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[2] = {
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.type = IIO_VOLTAGE,
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@ -696,6 +712,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 2,
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.scan_index = 2,
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.scan_type = IIO_ST('u', 10, 16, 2),
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.event_mask = AD799X_EV_MASK,
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},
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[3] = {
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.type = IIO_VOLTAGE,
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@ -704,6 +721,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 3,
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.scan_index = 3,
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.scan_type = IIO_ST('u', 10, 16, 2),
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.event_mask = AD799X_EV_MASK,
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},
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[4] = {
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.type = IIO_VOLTAGE,
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@ -753,6 +771,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 0,
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.scan_index = 0,
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.scan_type = IIO_ST('u', 12, 16, 0),
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.event_mask = AD799X_EV_MASK,
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},
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[1] = {
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.type = IIO_VOLTAGE,
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@ -761,6 +780,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 1,
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.scan_index = 1,
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.scan_type = IIO_ST('u', 12, 16, 0),
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.event_mask = AD799X_EV_MASK,
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},
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[2] = {
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.type = IIO_VOLTAGE,
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@ -769,6 +789,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 2,
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.scan_index = 2,
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.scan_type = IIO_ST('u', 12, 16, 0),
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.event_mask = AD799X_EV_MASK,
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},
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[3] = {
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.type = IIO_VOLTAGE,
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@ -777,6 +798,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
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.address = 3,
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.scan_index = 3,
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.scan_type = IIO_ST('u', 12, 16, 0),
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.event_mask = AD799X_EV_MASK,
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},
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[4] = {
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.type = IIO_VOLTAGE,
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