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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /drivers/iio/humidity/hts221.h | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/iio/humidity/hts221.h')
-rw-r--r-- | drivers/iio/humidity/hts221.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/iio/humidity/hts221.h b/drivers/iio/humidity/hts221.h new file mode 100644 index 000000000..838c05056 --- /dev/null +++ b/drivers/iio/humidity/hts221.h @@ -0,0 +1,56 @@ +/* + * STMicroelectronics hts221 sensor driver + * + * Copyright 2016 STMicroelectronics Inc. + * + * Lorenzo Bianconi <lorenzo.bianconi@st.com> + * + * Licensed under the GPL-2. + */ + +#ifndef HTS221_H +#define HTS221_H + +#define HTS221_DEV_NAME "hts221" + +#include <linux/iio/iio.h> + +enum hts221_sensor_type { + HTS221_SENSOR_H, + HTS221_SENSOR_T, + HTS221_SENSOR_MAX, +}; + +struct hts221_sensor { + u8 cur_avg_idx; + int slope, b_gen; +}; + +struct hts221_hw { + const char *name; + struct device *dev; + struct regmap *regmap; + + struct iio_trigger *trig; + int irq; + + struct hts221_sensor sensors[HTS221_SENSOR_MAX]; + + bool enabled; + u8 odr; + /* Ensure natural alignment of timestamp */ + struct { + __le16 channels[2]; + s64 ts __aligned(8); + } scan; +}; + +extern const struct dev_pm_ops hts221_pm_ops; + +int hts221_probe(struct device *dev, int irq, const char *name, + struct regmap *regmap); +int hts221_set_enable(struct hts221_hw *hw, bool enable); +int hts221_allocate_buffers(struct hts221_hw *hw); +int hts221_allocate_trigger(struct hts221_hw *hw); + +#endif /* HTS221_H */ |