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| author | Tomasz Duszynski <tomasz.duszynski@octakon.com> | 2021-05-03 08:00:12 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-05-17 14:49:10 +0200 |
| commit | 8f3f130852785dac0759843835ca97c3bacc2b10 (patch) | |
| tree | 5dbc663d2361b28d634268da30b9b11d7d62188a /drivers/iio/chemical/sps30.h | |
| parent | iio:ABI docs: Move specific description of out_altvoltageX_frequency to main ... (diff) | |
| download | linux-8f3f130852785dac0759843835ca97c3bacc2b10.tar.xz linux-8f3f130852785dac0759843835ca97c3bacc2b10.zip | |
iio: sps30: separate core and interface specific code
Move code responsible for handling i2c communication to a separate file.
Rationale for this change is preparation for adding support for serial
communication.
Signed-off-by: Tomasz Duszynski <tomasz.duszynski@octakon.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/chemical/sps30.h')
| -rw-r--r-- | drivers/iio/chemical/sps30.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/iio/chemical/sps30.h b/drivers/iio/chemical/sps30.h new file mode 100644 index 000000000000..a58ee43cf45d --- /dev/null +++ b/drivers/iio/chemical/sps30.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _SPS30_H +#define _SPS30_H + +#include <linux/types.h> + +struct sps30_state; +struct sps30_ops { + int (*start_meas)(struct sps30_state *state); + int (*stop_meas)(struct sps30_state *state); + int (*read_meas)(struct sps30_state *state, __be32 *meas, size_t num); + int (*reset)(struct sps30_state *state); + int (*clean_fan)(struct sps30_state *state); + int (*read_cleaning_period)(struct sps30_state *state, __be32 *period); + int (*write_cleaning_period)(struct sps30_state *state, __be32 period); + int (*show_info)(struct sps30_state *state); +}; + +struct sps30_state { + /* serialize access to the device */ + struct mutex lock; + struct device *dev; + int state; + /* + * priv pointer is solely for serdev driver private data. We keep it + * here because driver_data inside dev has been already used for iio and + * struct serdev_device doesn't have one. + */ + void *priv; + const struct sps30_ops *ops; +}; + +int sps30_probe(struct device *dev, const char *name, void *priv, const struct sps30_ops *ops); + +#endif |