staging:iio: Differential channel handling - use explicit flag rather than types.
Straight forward change in the core, but required some drivers to not use the IIO_CHAN macro as that doesn't allow setting this bit (and is going away anyway). Hence the churn. Tested on max1363 with a couple of supported parts. V2: differential bit in code got 7 bits and direction 1. Reversed that. Issue spotted by Michael - thanks! 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
8ce7375be7
commit
ade7ef7ba3
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@ -886,8 +886,7 @@ static int ad7192_read_raw(struct iio_dev *indio_dev,
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((1 << (chan->scan_type.realbits)) - 1);
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switch (chan->type) {
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case IIO_IN:
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case IIO_IN_DIFF:
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case IIO_VOLTAGE:
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if (!unipolar)
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*val -= (1 << (chan->scan_type.realbits - 1));
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break;
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@ -986,7 +985,8 @@ static const struct iio_info ad7192_info = {
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};
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#define AD7192_CHAN_DIFF(_chan, _chan2, _name, _address, _si) \
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{ .type = IIO_IN_DIFF, \
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{ .type = IIO_VOLTAGE, \
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.differential = 1, \
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.indexed = 1, \
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.extend_name = _name, \
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.channel = _chan, \
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@ -997,7 +997,7 @@ static const struct iio_info ad7192_info = {
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.scan_type = IIO_ST('s', 24, 32, 0)}
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#define AD7192_CHAN(_chan, _address, _si) \
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{ .type = IIO_IN, \
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{ .type = IIO_VOLTAGE, \
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.indexed = 1, \
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.channel = _chan, \
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.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED), \
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@ -495,7 +495,8 @@ static int ad7280_channel_init(struct ad7280_state *st)
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for (ch = AD7280A_CELL_VOLTAGE_1; ch <= AD7280A_AUX_ADC_6; ch++,
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cnt++) {
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if (ch < AD7280A_AUX_ADC_1) {
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st->channels[cnt].type = IIO_IN_DIFF;
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st->channels[cnt].type = IIO_VOLTAGE;
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st->channels[cnt].differential = 1;
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st->channels[cnt].channel = (dev * 6) + ch;
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st->channels[cnt].channel2 =
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st->channels[cnt].channel + 1;
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@ -515,7 +516,8 @@ static int ad7280_channel_init(struct ad7280_state *st)
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st->channels[cnt].scan_type.shift = 0;
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}
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st->channels[cnt].type = IIO_IN_DIFF;
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st->channels[cnt].type = IIO_VOLTAGE;
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st->channels[cnt].differential = 1;
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st->channels[cnt].channel = 0;
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st->channels[cnt].channel2 = dev * 6;
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st->channels[cnt].address = AD7280A_ALL_CELLS;
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@ -692,18 +694,22 @@ static irqreturn_t ad7280_event_handler(int irq, void *private)
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if (((channels[i] >> 11) & 0xFFF) >=
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st->cell_threshhigh)
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iio_push_event(dev_info,
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IIO_UNMOD_EVENT_CODE(IIO_IN_DIFF,
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0,
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IIO_EV_TYPE_THRESH,
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IIO_EV_DIR_RISING),
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IIO_EVENT_CODE(IIO_VOLTAGE,
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1,
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0,
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IIO_EV_DIR_RISING,
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IIO_EV_TYPE_THRESH,
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0, 0, 0),
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iio_get_time_ns());
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else if (((channels[i] >> 11) & 0xFFF) <=
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st->cell_threshlow)
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iio_push_event(dev_info,
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IIO_UNMOD_EVENT_CODE(IIO_IN_DIFF,
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0,
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IIO_EV_TYPE_THRESH,
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IIO_EV_DIR_FALLING),
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IIO_EVENT_CODE(IIO_VOLTAGE,
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1,
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0,
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IIO_EV_DIR_FALLING,
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IIO_EV_TYPE_THRESH,
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0, 0, 0),
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iio_get_time_ns());
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} else {
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if (((channels[i] >> 11) & 0xFFF) >= st->aux_threshhigh)
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@ -767,57 +767,137 @@ static const struct iio_info ad7793_info = {
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static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
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[ID_AD7793] = {
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.channel[0] = IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 0, 0,
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(1 << IIO_CHAN_INFO_SCALE_SHARED),
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AD7793_CH_AIN1P_AIN1M,
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0, IIO_ST('s', 24, 32, 0), 0),
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.channel[1] = IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 1, 1,
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(1 << IIO_CHAN_INFO_SCALE_SHARED),
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AD7793_CH_AIN2P_AIN2M,
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1, IIO_ST('s', 24, 32, 0), 0),
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.channel[2] = IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 2, 2,
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(1 << IIO_CHAN_INFO_SCALE_SHARED),
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AD7793_CH_AIN3P_AIN3M,
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2, IIO_ST('s', 24, 32, 0), 0),
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.channel[3] = IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, "shorted", 0, 0,
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(1 << IIO_CHAN_INFO_SCALE_SHARED),
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AD7793_CH_AIN1M_AIN1M,
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3, IIO_ST('s', 24, 32, 0), 0),
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.channel[4] = IIO_CHAN(IIO_TEMP, 0, 1, 0, NULL, 0, 0,
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(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
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AD7793_CH_TEMP,
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4, IIO_ST('s', 24, 32, 0), 0),
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.channel[5] = IIO_CHAN(IIO_IN, 0, 1, 0, "supply", 4, 0,
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(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
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AD7793_CH_AVDD_MONITOR,
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5, IIO_ST('s', 24, 32, 0), 0),
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.channel[0] = {
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.type = IIO_VOLTAGE,
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.differential = 1,
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.indexed = 1,
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.channel = 0,
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.channel2 = 0,
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.address = AD7793_CH_AIN1P_AIN1M,
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.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
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.scan_index = 0,
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.scan_type = IIO_ST('s', 24, 32, 0)
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},
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.channel[1] = {
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.type = IIO_VOLTAGE,
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.differential = 1,
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.indexed = 1,
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.channel = 1,
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.channel2 = 1,
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.address = AD7793_CH_AIN2P_AIN2M,
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.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
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.scan_index = 1,
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.scan_type = IIO_ST('s', 24, 32, 0)
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},
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.channel[2] = {
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.type = IIO_VOLTAGE,
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.differential = 1,
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.indexed = 1,
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.channel = 2,
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.channel2 = 2,
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.address = AD7793_CH_AIN3P_AIN3M,
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.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
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.scan_index = 2,
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.scan_type = IIO_ST('s', 24, 32, 0)
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},
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.channel[3] = {
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.type = IIO_VOLTAGE,
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.differential = 1,
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.extend_name = "shorted",
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.indexed = 1,
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.channel = 2,
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.channel2 = 2,
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.address = AD7793_CH_AIN1M_AIN1M,
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.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
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.scan_index = 2,
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.scan_type = IIO_ST('s', 24, 32, 0)
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},
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.channel[4] = {
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.type = IIO_TEMP,
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.indexed = 1,
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.channel = 0,
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.address = AD7793_CH_TEMP,
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.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
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.scan_index = 4,
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.scan_type = IIO_ST('s', 24, 32, 0),
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},
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.channel[5] = {
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.type = IIO_VOLTAGE,
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.extend_name = "supply",
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.indexed = 1,
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.channel = 4,
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.address = AD7793_CH_AVDD_MONITOR,
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.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
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.scan_index = 5,
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.scan_type = IIO_ST('s', 24, 32, 0),
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},
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.channel[6] = IIO_CHAN_SOFT_TIMESTAMP(6),
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},
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[ID_AD7792] = {
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.channel[0] = IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 0, 0,
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(1 << IIO_CHAN_INFO_SCALE_SHARED),
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AD7793_CH_AIN1P_AIN1M,
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0, IIO_ST('s', 16, 32, 0), 0),
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.channel[1] = IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 1, 1,
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(1 << IIO_CHAN_INFO_SCALE_SHARED),
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AD7793_CH_AIN2P_AIN2M,
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1, IIO_ST('s', 16, 32, 0), 0),
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.channel[2] = IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 2, 2,
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(1 << IIO_CHAN_INFO_SCALE_SHARED),
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AD7793_CH_AIN3P_AIN3M,
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2, IIO_ST('s', 16, 32, 0), 0),
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.channel[3] = IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, "shorted", 0, 0,
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(1 << IIO_CHAN_INFO_SCALE_SHARED),
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AD7793_CH_AIN1M_AIN1M,
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3, IIO_ST('s', 16, 32, 0), 0),
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.channel[4] = IIO_CHAN(IIO_TEMP, 0, 1, 0, NULL, 0, 0,
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(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
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AD7793_CH_TEMP,
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4, IIO_ST('s', 16, 32, 0), 0),
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.channel[5] = IIO_CHAN(IIO_IN, 0, 1, 0, "supply", 4, 0,
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(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
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AD7793_CH_AVDD_MONITOR,
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5, IIO_ST('s', 16, 32, 0), 0),
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.channel[0] = {
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.type = IIO_VOLTAGE,
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.differential = 1,
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.indexed = 1,
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.channel = 0,
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.channel2 = 0,
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.address = AD7793_CH_AIN1P_AIN1M,
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.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
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.scan_index = 0,
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.scan_type = IIO_ST('s', 16, 32, 0)
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},
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.channel[1] = {
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.type = IIO_VOLTAGE,
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.differential = 1,
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.indexed = 1,
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.channel = 1,
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.channel2 = 1,
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.address = AD7793_CH_AIN2P_AIN2M,
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.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
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.scan_index = 1,
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.scan_type = IIO_ST('s', 16, 32, 0)
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},
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.channel[2] = {
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.type = IIO_VOLTAGE,
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.differential = 1,
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.indexed = 1,
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.channel = 2,
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.channel2 = 2,
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.address = AD7793_CH_AIN3P_AIN3M,
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.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
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.scan_index = 2,
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.scan_type = IIO_ST('s', 16, 32, 0)
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},
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.channel[3] = {
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.type = IIO_VOLTAGE,
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.differential = 1,
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.extend_name = "shorted",
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.indexed = 1,
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.channel = 2,
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.channel2 = 2,
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.address = AD7793_CH_AIN1M_AIN1M,
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.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
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.scan_index = 2,
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.scan_type = IIO_ST('s', 16, 32, 0)
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},
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.channel[4] = {
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.type = IIO_TEMP,
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.indexed = 1,
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.channel = 0,
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.address = AD7793_CH_TEMP,
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.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
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.scan_index = 4,
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.scan_type = IIO_ST('s', 16, 32, 0),
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},
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.channel[5] = {
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.type = IIO_VOLTAGE,
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.extend_name = "supply",
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.indexed = 1,
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.channel = 4,
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.address = AD7793_CH_AVDD_MONITOR,
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.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
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.scan_index = 5,
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.scan_type = IIO_ST('s', 16, 32, 0),
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},
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.channel[6] = IIO_CHAN_SOFT_TIMESTAMP(6),
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},
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};
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@ -289,72 +289,52 @@ static const enum max1363_modes max1363_mode_list[] = {
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(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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#define MAX1363_INFO_MASK (1 << IIO_CHAN_INFO_SCALE_SHARED)
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static struct iio_chan_spec max1363_channels[] = {
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IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 0, 0, MAX1363_INFO_MASK,
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_s0, 0, IIO_ST('u', 12, 16, 0), MAX1363_EV_M),
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IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 1, 0, MAX1363_INFO_MASK,
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_s1, 1, IIO_ST('u', 12, 16, 0), MAX1363_EV_M),
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IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 2, 0, MAX1363_INFO_MASK,
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_s2, 2, IIO_ST('u', 12, 16, 0), MAX1363_EV_M),
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IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 3, 0, MAX1363_INFO_MASK,
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_s3, 3, IIO_ST('u', 12, 16, 0), MAX1363_EV_M),
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IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 0, 1, MAX1363_INFO_MASK,
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d0m1, 4, IIO_ST('s', 12, 16, 0), MAX1363_EV_M),
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IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 2, 3, MAX1363_INFO_MASK,
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d2m3, 5, IIO_ST('s', 12, 16, 0), MAX1363_EV_M),
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IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 1, 0, MAX1363_INFO_MASK,
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d1m0, 6, IIO_ST('s', 12, 16, 0), MAX1363_EV_M),
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IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 3, 2, MAX1363_INFO_MASK,
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d3m2, 7, IIO_ST('s', 12, 16, 0), MAX1363_EV_M),
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IIO_CHAN_SOFT_TIMESTAMP(8)
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};
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static struct iio_chan_spec max1361_channels[] = {
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IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 0, 0, MAX1363_INFO_MASK,
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_s0, 0, IIO_ST('u', 10, 16, 0), MAX1363_EV_M),
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IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 1, 0, MAX1363_INFO_MASK,
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_s1, 1, IIO_ST('u', 10, 16, 0), MAX1363_EV_M),
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IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 2, 0, MAX1363_INFO_MASK,
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_s2, 2, IIO_ST('u', 10, 16, 0), MAX1363_EV_M),
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IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 3, 0, MAX1363_INFO_MASK,
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_s3, 3, IIO_ST('u', 10, 16, 0), MAX1363_EV_M),
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IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 0, 1, MAX1363_INFO_MASK,
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d0m1, 4, IIO_ST('s', 10, 16, 0), MAX1363_EV_M),
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IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 2, 3, MAX1363_INFO_MASK,
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d2m3, 5, IIO_ST('s', 10, 16, 0), MAX1363_EV_M),
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IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 1, 0, MAX1363_INFO_MASK,
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d1m0, 6, IIO_ST('s', 10, 16, 0), MAX1363_EV_M),
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IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 3, 2, MAX1363_INFO_MASK,
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d3m2, 7, IIO_ST('s', 10, 16, 0), MAX1363_EV_M),
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IIO_CHAN_SOFT_TIMESTAMP(8)
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};
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#define MAX1363_CHAN_U(num, address, scan_index, bits) \
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IIO_CHAN(IIO_IN, 0, 1, 0, NULL, num, 0, MAX1363_INFO_MASK, \
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address, scan_index, IIO_ST('u', bits, \
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(bits == 8) ? 8 : 16, 0), 0)
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/* bipolar channel */
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#define MAX1363_CHAN_B(num, num2, address, scan_index, bits) \
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IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, num, num2, MAX1363_INFO_MASK,\
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address, scan_index, IIO_ST('s', bits, \
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(bits == 8) ? 8 : 16, 0), 0)
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#define MAX1363_4X_CHANS(bits) { \
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MAX1363_CHAN_U(0, _s0, 0, bits), \
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MAX1363_CHAN_U(1, _s1, 1, bits), \
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MAX1363_CHAN_U(2, _s2, 2, bits), \
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MAX1363_CHAN_U(3, _s3, 3, bits), \
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MAX1363_CHAN_B(0, 1, d0m1, 4, bits), \
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MAX1363_CHAN_B(2, 3, d2m3, 5, bits), \
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MAX1363_CHAN_B(1, 0, d1m0, 6, bits), \
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MAX1363_CHAN_B(3, 2, d3m2, 7, bits), \
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IIO_CHAN_SOFT_TIMESTAMP(8) \
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#define MAX1363_CHAN_U(num, addr, si, bits, evmask) \
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{ \
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.type = IIO_VOLTAGE, \
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.indexed = 1, \
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.channel = num, \
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.address = addr, \
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.info_mask = MAX1363_INFO_MASK, \
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.scan_type = IIO_ST('u', bits, (bits > 8) ? 16 : 8, 0), \
|
||||
.scan_index = si, \
|
||||
.event_mask = evmask, \
|
||||
}
|
||||
|
||||
static struct iio_chan_spec max1036_channels[] = MAX1363_4X_CHANS(8);
|
||||
static struct iio_chan_spec max1136_channels[] = MAX1363_4X_CHANS(10);
|
||||
static struct iio_chan_spec max1236_channels[] = MAX1363_4X_CHANS(12);
|
||||
/* bipolar channel */
|
||||
#define MAX1363_CHAN_B(num, num2, addr, si, bits, evmask) \
|
||||
{ \
|
||||
.type = IIO_VOLTAGE, \
|
||||
.differential = 1, \
|
||||
.indexed = 1, \
|
||||
.channel = num, \
|
||||
.channel2 = num2, \
|
||||
.address = addr, \
|
||||
.info_mask = MAX1363_INFO_MASK, \
|
||||
.scan_type = IIO_ST('u', bits, (bits > 8) ? 16 : 8, 0), \
|
||||
.scan_index = si, \
|
||||
.event_mask = evmask, \
|
||||
}
|
||||
|
||||
#define MAX1363_4X_CHANS(bits, em) { \
|
||||
MAX1363_CHAN_U(0, _s0, 0, bits, em), \
|
||||
MAX1363_CHAN_U(1, _s1, 1, bits, em), \
|
||||
MAX1363_CHAN_U(2, _s2, 2, bits, em), \
|
||||
MAX1363_CHAN_U(3, _s3, 3, bits, em), \
|
||||
MAX1363_CHAN_B(0, 1, d0m1, 4, bits, em), \
|
||||
MAX1363_CHAN_B(2, 3, d2m3, 5, bits, em), \
|
||||
MAX1363_CHAN_B(1, 0, d1m0, 6, bits, em), \
|
||||
MAX1363_CHAN_B(3, 2, d3m2, 7, bits, em), \
|
||||
IIO_CHAN_SOFT_TIMESTAMP(8) \
|
||||
}
|
||||
|
||||
static struct iio_chan_spec max1036_channels[] = MAX1363_4X_CHANS(8, 0);
|
||||
static struct iio_chan_spec max1136_channels[] = MAX1363_4X_CHANS(10, 0);
|
||||
static struct iio_chan_spec max1236_channels[] = MAX1363_4X_CHANS(12, 0);
|
||||
static struct iio_chan_spec max1361_channels[] =
|
||||
MAX1363_4X_CHANS(10, MAX1363_EV_M);
|
||||
static struct iio_chan_spec max1363_channels[] =
|
||||
MAX1363_4X_CHANS(12, MAX1363_EV_M);
|
||||
|
||||
/* Appies to max1236, max1237 */
|
||||
static const enum max1363_modes max1236_mode_list[] = {
|
||||
|
|
@ -379,30 +359,30 @@ static const enum max1363_modes max1238_mode_list[] = {
|
|||
};
|
||||
|
||||
#define MAX1363_12X_CHANS(bits) { \
|
||||
MAX1363_CHAN_U(0, _s0, 0, bits), \
|
||||
MAX1363_CHAN_U(1, _s1, 1, bits), \
|
||||
MAX1363_CHAN_U(2, _s2, 2, bits), \
|
||||
MAX1363_CHAN_U(3, _s3, 3, bits), \
|
||||
MAX1363_CHAN_U(4, _s4, 4, bits), \
|
||||
MAX1363_CHAN_U(5, _s5, 5, bits), \
|
||||
MAX1363_CHAN_U(6, _s6, 6, bits), \
|
||||
MAX1363_CHAN_U(7, _s7, 7, bits), \
|
||||
MAX1363_CHAN_U(8, _s8, 8, bits), \
|
||||
MAX1363_CHAN_U(9, _s9, 9, bits), \
|
||||
MAX1363_CHAN_U(10, _s10, 10, bits), \
|
||||
MAX1363_CHAN_U(11, _s11, 11, bits), \
|
||||
MAX1363_CHAN_B(0, 1, d0m1, 12, bits), \
|
||||
MAX1363_CHAN_B(2, 3, d2m3, 13, bits), \
|
||||
MAX1363_CHAN_B(4, 5, d4m5, 14, bits), \
|
||||
MAX1363_CHAN_B(6, 7, d6m7, 15, bits), \
|
||||
MAX1363_CHAN_B(8, 9, d8m9, 16, bits), \
|
||||
MAX1363_CHAN_B(10, 11, d10m11, 17, bits), \
|
||||
MAX1363_CHAN_B(1, 0, d1m0, 18, bits), \
|
||||
MAX1363_CHAN_B(3, 2, d3m2, 19, bits), \
|
||||
MAX1363_CHAN_B(5, 4, d5m4, 20, bits), \
|
||||
MAX1363_CHAN_B(7, 6, d7m6, 21, bits), \
|
||||
MAX1363_CHAN_B(9, 8, d9m8, 22, bits), \
|
||||
MAX1363_CHAN_B(11, 10, d11m10, 23, bits), \
|
||||
MAX1363_CHAN_U(0, _s0, 0, bits, 0), \
|
||||
MAX1363_CHAN_U(1, _s1, 1, bits, 0), \
|
||||
MAX1363_CHAN_U(2, _s2, 2, bits, 0), \
|
||||
MAX1363_CHAN_U(3, _s3, 3, bits, 0), \
|
||||
MAX1363_CHAN_U(4, _s4, 4, bits, 0), \
|
||||
MAX1363_CHAN_U(5, _s5, 5, bits, 0), \
|
||||
MAX1363_CHAN_U(6, _s6, 6, bits, 0), \
|
||||
MAX1363_CHAN_U(7, _s7, 7, bits, 0), \
|
||||
MAX1363_CHAN_U(8, _s8, 8, bits, 0), \
|
||||
MAX1363_CHAN_U(9, _s9, 9, bits, 0), \
|
||||
MAX1363_CHAN_U(10, _s10, 10, bits, 0), \
|
||||
MAX1363_CHAN_U(11, _s11, 11, bits, 0), \
|
||||
MAX1363_CHAN_B(0, 1, d0m1, 12, bits, 0), \
|
||||
MAX1363_CHAN_B(2, 3, d2m3, 13, bits, 0), \
|
||||
MAX1363_CHAN_B(4, 5, d4m5, 14, bits, 0), \
|
||||
MAX1363_CHAN_B(6, 7, d6m7, 15, bits, 0), \
|
||||
MAX1363_CHAN_B(8, 9, d8m9, 16, bits, 0), \
|
||||
MAX1363_CHAN_B(10, 11, d10m11, 17, bits, 0), \
|
||||
MAX1363_CHAN_B(1, 0, d1m0, 18, bits, 0), \
|
||||
MAX1363_CHAN_B(3, 2, d3m2, 19, bits, 0), \
|
||||
MAX1363_CHAN_B(5, 4, d5m4, 20, bits, 0), \
|
||||
MAX1363_CHAN_B(7, 6, d7m6, 21, bits, 0), \
|
||||
MAX1363_CHAN_B(9, 8, d9m8, 22, bits, 0), \
|
||||
MAX1363_CHAN_B(11, 10, d11m10, 23, bits, 0), \
|
||||
IIO_CHAN_SOFT_TIMESTAMP(24) \
|
||||
}
|
||||
static struct iio_chan_spec max1038_channels[] = MAX1363_12X_CHANS(8);
|
||||
|
|
@ -427,25 +407,25 @@ static const enum max1363_modes max11608_mode_list[] = {
|
|||
d1m0to3m2, d1m0to5m4, d1m0to7m6,
|
||||
};
|
||||
|
||||
#define MAX1363_8X_CHANS(bits) { \
|
||||
MAX1363_CHAN_U(0, _s0, 0, bits), \
|
||||
MAX1363_CHAN_U(1, _s1, 1, bits), \
|
||||
MAX1363_CHAN_U(2, _s2, 2, bits), \
|
||||
MAX1363_CHAN_U(3, _s3, 3, bits), \
|
||||
MAX1363_CHAN_U(4, _s4, 4, bits), \
|
||||
MAX1363_CHAN_U(5, _s5, 5, bits), \
|
||||
MAX1363_CHAN_U(6, _s6, 6, bits), \
|
||||
MAX1363_CHAN_U(7, _s7, 7, bits), \
|
||||
MAX1363_CHAN_B(0, 1, d0m1, 8, bits), \
|
||||
MAX1363_CHAN_B(2, 3, d2m3, 9, bits), \
|
||||
MAX1363_CHAN_B(4, 5, d4m5, 10, bits), \
|
||||
MAX1363_CHAN_B(6, 7, d6m7, 11, bits), \
|
||||
MAX1363_CHAN_B(1, 0, d1m0, 12, bits), \
|
||||
MAX1363_CHAN_B(3, 2, d3m2, 13, bits), \
|
||||
MAX1363_CHAN_B(5, 4, d5m4, 14, bits), \
|
||||
MAX1363_CHAN_B(7, 6, d7m6, 15, bits), \
|
||||
IIO_CHAN_SOFT_TIMESTAMP(16) \
|
||||
}
|
||||
#define MAX1363_8X_CHANS(bits) { \
|
||||
MAX1363_CHAN_U(0, _s0, 0, bits, 0), \
|
||||
MAX1363_CHAN_U(1, _s1, 1, bits, 0), \
|
||||
MAX1363_CHAN_U(2, _s2, 2, bits, 0), \
|
||||
MAX1363_CHAN_U(3, _s3, 3, bits, 0), \
|
||||
MAX1363_CHAN_U(4, _s4, 4, bits, 0), \
|
||||
MAX1363_CHAN_U(5, _s5, 5, bits, 0), \
|
||||
MAX1363_CHAN_U(6, _s6, 6, bits, 0), \
|
||||
MAX1363_CHAN_U(7, _s7, 7, bits, 0), \
|
||||
MAX1363_CHAN_B(0, 1, d0m1, 8, bits, 0), \
|
||||
MAX1363_CHAN_B(2, 3, d2m3, 9, bits, 0), \
|
||||
MAX1363_CHAN_B(4, 5, d4m5, 10, bits, 0), \
|
||||
MAX1363_CHAN_B(6, 7, d6m7, 11, bits, 0), \
|
||||
MAX1363_CHAN_B(1, 0, d1m0, 12, bits, 0), \
|
||||
MAX1363_CHAN_B(3, 2, d3m2, 13, bits, 0), \
|
||||
MAX1363_CHAN_B(5, 4, d5m4, 14, bits, 0), \
|
||||
MAX1363_CHAN_B(7, 6, d7m6, 15, bits, 0), \
|
||||
IIO_CHAN_SOFT_TIMESTAMP(16) \
|
||||
}
|
||||
static struct iio_chan_spec max11602_channels[] = MAX1363_8X_CHANS(8);
|
||||
static struct iio_chan_spec max11608_channels[] = MAX1363_8X_CHANS(10);
|
||||
static struct iio_chan_spec max11614_channels[] = MAX1363_8X_CHANS(12);
|
||||
|
|
@ -455,10 +435,10 @@ static const enum max1363_modes max11644_mode_list[] = {
|
|||
};
|
||||
|
||||
#define MAX1363_2X_CHANS(bits) { \
|
||||
MAX1363_CHAN_U(0, _s0, 0, bits), \
|
||||
MAX1363_CHAN_U(1, _s1, 1, bits), \
|
||||
MAX1363_CHAN_B(0, 1, d0m1, 2, bits), \
|
||||
MAX1363_CHAN_B(1, 0, d1m0, 3, bits), \
|
||||
MAX1363_CHAN_U(0, _s0, 0, bits, 0), \
|
||||
MAX1363_CHAN_U(1, _s1, 1, bits, 0), \
|
||||
MAX1363_CHAN_B(0, 1, d0m1, 2, bits, 0), \
|
||||
MAX1363_CHAN_B(1, 0, d1m0, 3, bits, 0), \
|
||||
IIO_CHAN_SOFT_TIMESTAMP(4) \
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -31,7 +31,6 @@ enum iio_chan_type {
|
|||
IIO_CURRENT,
|
||||
IIO_POWER,
|
||||
IIO_ACCEL,
|
||||
IIO_VOLTAGE_DIFF,
|
||||
IIO_GYRO,
|
||||
IIO_MAGN,
|
||||
IIO_LIGHT,
|
||||
|
|
@ -124,6 +123,7 @@ enum iio_endian {
|
|||
* the value in channel will be suppressed for attribute
|
||||
* but not for event codes. Typically set it to 0 when
|
||||
* the index is false.
|
||||
* @differential: Channel is differential.
|
||||
*/
|
||||
struct iio_chan_spec {
|
||||
enum iio_chan_type type;
|
||||
|
|
@ -145,6 +145,7 @@ struct iio_chan_spec {
|
|||
unsigned modified:1;
|
||||
unsigned indexed:1;
|
||||
unsigned output:1;
|
||||
unsigned differential:1;
|
||||
};
|
||||
|
||||
#define IIO_ST(si, rb, sb, sh) \
|
||||
|
|
|
|||
|
|
@ -49,12 +49,11 @@ static const char * const iio_direction[] = {
|
|||
[1] = "out",
|
||||
};
|
||||
|
||||
static const char * const iio_chan_type_name_spec_shared[] = {
|
||||
static const char * const iio_chan_type_name_spec[] = {
|
||||
[IIO_VOLTAGE] = "voltage",
|
||||
[IIO_CURRENT] = "current",
|
||||
[IIO_POWER] = "power",
|
||||
[IIO_ACCEL] = "accel",
|
||||
[IIO_VOLTAGE_DIFF] = "voltage-voltage",
|
||||
[IIO_GYRO] = "gyro",
|
||||
[IIO_MAGN] = "magn",
|
||||
[IIO_LIGHT] = "illuminance",
|
||||
|
|
@ -68,10 +67,6 @@ static const char * const iio_chan_type_name_spec_shared[] = {
|
|||
[IIO_CAPACITANCE] = "capacitance",
|
||||
};
|
||||
|
||||
static const char * const iio_chan_type_name_spec_complex[] = {
|
||||
[IIO_VOLTAGE_DIFF] = "voltage%d-voltage%d",
|
||||
};
|
||||
|
||||
static const char * const iio_modifier_names[] = {
|
||||
[IIO_MOD_X] = "x",
|
||||
[IIO_MOD_Y] = "y",
|
||||
|
|
@ -158,7 +153,6 @@ error_ret:
|
|||
}
|
||||
EXPORT_SYMBOL(iio_push_event);
|
||||
|
||||
|
||||
/* This turns up an awful lot */
|
||||
ssize_t iio_read_const_attr(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
|
|
@ -168,7 +162,6 @@ ssize_t iio_read_const_attr(struct device *dev,
|
|||
}
|
||||
EXPORT_SYMBOL(iio_read_const_attr);
|
||||
|
||||
|
||||
static ssize_t iio_event_chrdev_read(struct file *filep,
|
||||
char __user *buf,
|
||||
size_t count,
|
||||
|
|
@ -397,36 +390,6 @@ static ssize_t iio_write_channel_info(struct device *dev,
|
|||
return len;
|
||||
}
|
||||
|
||||
static int __iio_build_postfix(struct iio_chan_spec const *chan,
|
||||
bool generic,
|
||||
const char *postfix,
|
||||
char **result)
|
||||
{
|
||||
char *all_post;
|
||||
/* 3 options - generic, extend_name, modified - if generic, extend_name
|
||||
* and modified cannot apply.*/
|
||||
|
||||
if (generic || (!chan->modified && !chan->extend_name)) {
|
||||
all_post = kasprintf(GFP_KERNEL, "%s", postfix);
|
||||
} else if (chan->modified) {
|
||||
if (chan->extend_name)
|
||||
all_post = kasprintf(GFP_KERNEL, "%s_%s_%s",
|
||||
iio_modifier_names[chan->channel2],
|
||||
chan->extend_name,
|
||||
postfix);
|
||||
else
|
||||
all_post = kasprintf(GFP_KERNEL, "%s_%s",
|
||||
iio_modifier_names[chan->channel2],
|
||||
postfix);
|
||||
} else
|
||||
all_post = kasprintf(GFP_KERNEL, "%s_%s", chan->extend_name,
|
||||
postfix);
|
||||
if (all_post == NULL)
|
||||
return -ENOMEM;
|
||||
*result = all_post;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static
|
||||
int __iio_device_attr_init(struct device_attribute *dev_attr,
|
||||
const char *postfix,
|
||||
|
|
@ -443,31 +406,77 @@ int __iio_device_attr_init(struct device_attribute *dev_attr,
|
|||
int ret;
|
||||
char *name_format, *full_postfix;
|
||||
sysfs_attr_init(&dev_attr->attr);
|
||||
ret = __iio_build_postfix(chan, generic, postfix, &full_postfix);
|
||||
if (ret)
|
||||
|
||||
/* Build up postfix of <extend_name>_<modifier>_postfix */
|
||||
if (chan->modified) {
|
||||
if (chan->extend_name)
|
||||
full_postfix = kasprintf(GFP_KERNEL, "%s_%s_%s",
|
||||
iio_modifier_names[chan
|
||||
->channel2],
|
||||
chan->extend_name,
|
||||
postfix);
|
||||
else
|
||||
full_postfix = kasprintf(GFP_KERNEL, "%s_%s",
|
||||
iio_modifier_names[chan
|
||||
->channel2],
|
||||
postfix);
|
||||
} else {
|
||||
if (chan->extend_name == NULL)
|
||||
full_postfix = kstrdup(postfix, GFP_KERNEL);
|
||||
else
|
||||
full_postfix = kasprintf(GFP_KERNEL,
|
||||
"%s_%s",
|
||||
chan->extend_name,
|
||||
postfix);
|
||||
}
|
||||
if (full_postfix == NULL) {
|
||||
ret = -ENOMEM;
|
||||
goto error_ret;
|
||||
}
|
||||
|
||||
/* Special case for types that uses both channel numbers in naming */
|
||||
if (chan->type == IIO_VOLTAGE_DIFF && !generic)
|
||||
name_format
|
||||
= kasprintf(GFP_KERNEL, "%s_%s_%s",
|
||||
iio_direction[chan->output],
|
||||
iio_chan_type_name_spec_complex[chan->type],
|
||||
full_postfix);
|
||||
else if (generic || !chan->indexed)
|
||||
name_format
|
||||
= kasprintf(GFP_KERNEL, "%s_%s_%s",
|
||||
iio_direction[chan->output],
|
||||
iio_chan_type_name_spec_shared[chan->type],
|
||||
full_postfix);
|
||||
else
|
||||
name_format
|
||||
= kasprintf(GFP_KERNEL, "%s_%s%d_%s",
|
||||
iio_direction[chan->output],
|
||||
iio_chan_type_name_spec_shared[chan->type],
|
||||
chan->channel,
|
||||
full_postfix);
|
||||
|
||||
if (chan->differential) { /* Differential can not have modifier */
|
||||
if (generic)
|
||||
name_format
|
||||
= kasprintf(GFP_KERNEL, "%s_%s-%s_%s",
|
||||
iio_direction[chan->output],
|
||||
iio_chan_type_name_spec[chan->type],
|
||||
iio_chan_type_name_spec[chan->type],
|
||||
full_postfix);
|
||||
else if (chan->indexed)
|
||||
name_format
|
||||
= kasprintf(GFP_KERNEL, "%s_%s%d-%s%d_%s",
|
||||
iio_direction[chan->output],
|
||||
iio_chan_type_name_spec[chan->type],
|
||||
chan->channel,
|
||||
iio_chan_type_name_spec[chan->type],
|
||||
chan->channel2,
|
||||
full_postfix);
|
||||
else {
|
||||
WARN_ON("Differential channels must be indexed\n");
|
||||
ret = -EINVAL;
|
||||
goto error_free_full_postfix;
|
||||
}
|
||||
} else { /* Single ended */
|
||||
if (generic)
|
||||
name_format
|
||||
= kasprintf(GFP_KERNEL, "%s_%s_%s",
|
||||
iio_direction[chan->output],
|
||||
iio_chan_type_name_spec[chan->type],
|
||||
full_postfix);
|
||||
else if (chan->indexed)
|
||||
name_format
|
||||
= kasprintf(GFP_KERNEL, "%s_%s%d_%s",
|
||||
iio_direction[chan->output],
|
||||
iio_chan_type_name_spec[chan->type],
|
||||
chan->channel,
|
||||
full_postfix);
|
||||
else
|
||||
name_format
|
||||
= kasprintf(GFP_KERNEL, "%s_%s_%s",
|
||||
iio_direction[chan->output],
|
||||
iio_chan_type_name_spec[chan->type],
|
||||
full_postfix);
|
||||
}
|
||||
if (name_format == NULL) {
|
||||
ret = -ENOMEM;
|
||||
goto error_free_full_postfix;
|
||||
|
|
@ -805,12 +814,14 @@ static int iio_device_add_event_sysfs(struct iio_dev *dev_info,
|
|||
mask = IIO_MOD_EVENT_CODE(chan->type, 0, chan->channel,
|
||||
i/IIO_EV_DIR_MAX,
|
||||
i%IIO_EV_DIR_MAX);
|
||||
else if (chan->type == IIO_VOLTAGE_DIFF)
|
||||
mask = IIO_MOD_EVENT_CODE(chan->type,
|
||||
chan->channel,
|
||||
chan->channel2,
|
||||
i/IIO_EV_DIR_MAX,
|
||||
i%IIO_EV_DIR_MAX);
|
||||
else if (chan->differential)
|
||||
mask = IIO_EVENT_CODE(chan->type,
|
||||
0, 0,
|
||||
i%IIO_EV_DIR_MAX,
|
||||
i/IIO_EV_DIR_MAX,
|
||||
0,
|
||||
chan->channel,
|
||||
chan->channel2);
|
||||
else
|
||||
mask = IIO_UNMOD_EVENT_CODE(chan->type,
|
||||
chan->channel,
|
||||
|
|
|
|||
|
|
@ -128,9 +128,10 @@ enum iio_event_direction {
|
|||
IIO_EV_DIR_FALLING,
|
||||
};
|
||||
|
||||
#define IIO_EVENT_CODE(chan_type, modifier, direction, \
|
||||
#define IIO_EVENT_CODE(chan_type, diff, modifier, direction, \
|
||||
type, chan, chan1, chan2) \
|
||||
(((u64)type << 56) | ((u64)direction << 48) | ((u64)modifier << 40) | \
|
||||
(((u64)type << 56) | ((u64)diff << 55) | \
|
||||
((u64)direction << 48) | ((u64)modifier << 40) | \
|
||||
((u64)chan_type << 32) | (chan2 << 16) | chan1 | chan)
|
||||
|
||||
#define IIO_EV_DIR_MAX 4
|
||||
|
|
@ -139,13 +140,13 @@ enum iio_event_direction {
|
|||
|
||||
#define IIO_MOD_EVENT_CODE(channelclass, number, modifier, \
|
||||
type, direction) \
|
||||
IIO_EVENT_CODE(channelclass, modifier, direction, type, number, 0, 0)
|
||||
IIO_EVENT_CODE(channelclass, 0, modifier, direction, type, number, 0, 0)
|
||||
|
||||
#define IIO_UNMOD_EVENT_CODE(channelclass, number, type, direction) \
|
||||
IIO_EVENT_CODE(channelclass, 0, direction, type, number, 0, 0)
|
||||
IIO_EVENT_CODE(channelclass, 0, 0, direction, type, number, 0, 0)
|
||||
|
||||
#define IIO_EVENT_CODE_EXTRACT_TYPE(mask) ((mask >> 56) & 0xFF)
|
||||
#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0xFF)
|
||||
#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0xCF)
|
||||
|
||||
/* Event code number extraction depends on which type of event we have.
|
||||
* Perhaps review this function in the future*/
|
||||
|
|
|
|||
Loading…
Reference in New Issue