From: Jonathan Cameron <jic23@xxxxxxxxx>
Introduce the first data filtering related parameter.
For now we are ignoring the filter type and merely specifying its
approximate (I read them off tiny graphs) 3db point.
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxx>
---
drivers/staging/iio/iio.h | 7 +++++++
drivers/staging/iio/industrialio-core.c | 2 ++
2 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/drivers/staging/iio/iio.h b/drivers/staging/iio/iio.h
index 66c2604..4aed915 100644
--- a/drivers/staging/iio/iio.h
+++ b/drivers/staging/iio/iio.h
@@ -35,6 +35,7 @@ enum iio_chan_info_enum {
IIO_CHAN_INFO_PEAK_SCALE,
IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW,
IIO_CHAN_INFO_AVERAGE_RAW,
+ IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY,
};
#define IIO_CHAN_INFO_SHARED_BIT(type) BIT(type*2)
@@ -74,6 +75,12 @@ enum iio_chan_info_enum {
IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_AVERAGE_RAW)
#define IIO_CHAN_INFO_AVERAGE_RAW_SHARED_BIT \
IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_AVERAGE_RAW)
+#define IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT \
+ IIO_CHAN_INFO_SHARED_BIT( \
+ IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY)
+#define IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SEPARATE_BIT \
+ IIO_CHAN_INFO_SEPARATE_BIT( \
+ IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY)
enum iio_endian {
IIO_CPU,
diff --git a/drivers/staging/iio/industrialio-core.c b/drivers/staging/iio/industrialio-core.c
index 0b67166..55c0b48 100644
--- a/drivers/staging/iio/industrialio-core.c
+++ b/drivers/staging/iio/industrialio-core.c
@@ -85,6 +85,8 @@ static const char * const iio_chan_info_postfix[] = {
[IIO_CHAN_INFO_PEAK_SCALE] = "peak_scale",
[IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW] = "quadrature_correction_raw",
[IIO_CHAN_INFO_AVERAGE_RAW] = "mean_raw",
+ [IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY]
+ = "filter_low_pass_3db_frequency",
};
/**
--
1.7.7.3
--
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