linux-kernel - Re: [RFC/PATCH 1/6] iio:sensorhub: Add sensorhub common library

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Date:	Sun, 14 Sep 2014 15:17:56 +0100
From:	Jonathan Cameron <jic23@...nel.org>
To:	Karol Wrona <k.wrona@...sung.com>, linux-iio@...r.kernel.org,
	Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org
CC:	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>
Subject: Re: [RFC/PATCH 1/6] iio:sensorhub: Add sensorhub common library

On 03/09/14 15:55, Karol Wrona wrote:
> This patch adds common sensorhub library for sensorhub driver and iio drivers
> which uses sensorhub MCU to communicate with sensors.
> 
> Signed-off-by: Karol Wrona <k.wrona@...sung.com>
> Acked-by: Kyungmin Park <kyungmin.park@...sung.com>
> ---
>  include/linux/iio/common/ssp_sensors.h |   82 ++++++++++++++++++++++++++++++++
>  1 file changed, 82 insertions(+)

There is very little point in a separate patch to introduce a header, please combine this
with the first patch to use it when you respin for V2.

It can't be used on it's own or reviewed on it's own (except very superficially).



>  create mode 100644 include/linux/iio/common/ssp_sensors.h
> 
> diff --git a/include/linux/iio/common/ssp_sensors.h b/include/linux/iio/common/ssp_sensors.h
> new file mode 100644
> index 0000000..ca4bdc4
> --- /dev/null
> +++ b/include/linux/iio/common/ssp_sensors.h
> @@ -0,0 +1,82 @@
> +/*
> + *  Copyright (C) 2014, Samsung Electronics Co. Ltd. All Rights Reserved.
> + *
> + *  This program is free software; you can redistribute it and/or modify
> + *  it under the terms of the GNU General Public License as published by
> + *  the Free Software Foundation; either version 2 of the License, or
> + *  (at your option) any later version.
> + *
> + *  This program is distributed in the hope that it will be useful,
> + *  but WITHOUT ANY WARRANTY; without even the implied warranty of
> + *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + *  GNU General Public License for more details.
> + *
> + */
> +#ifndef _SSP_SENSORS_H_
> +#define _SSP_SENSORS_H_
> +
> +#define SSP_TIME_SIZE	4
> +
> +#define SSP_ACCELEROMETER_SIZE			6
> +#define SSP_GYROSCOPE_SIZE			6
> +#define	SSP_BIO_HRM_RAW_SIZE			8
> +#define	SSP_BIO_HRM_RAW_FAC_SIZE		36
> +#define	SSP_BIO_HRM_LIB_SIZE			8
> +
> +/**
> + * enum ssp_sensor_tyoe - SSP sensor type
> + */
> +enum ssp_sensor_type {
> +	SSP_ACCELEROMETER_SENSOR = 0,
> +	SSP_GYROSCOPE_SENSOR,
> +	SSP_GEOMAGNETIC_UNCALIB_SENSOR,
> +	SSP_GEOMAGNETIC_RAW,
> +	SSP_GEOMAGNETIC_SENSOR,
> +	SSP_PRESSURE_SENSOR,
> +	SSP_GESTURE_SENSOR,
> +	SSP_PROXIMITY_SENSOR,
> +	SSP_TEMPERATURE_HUMIDITY_SENSOR,
> +	SSP_LIGHT_SENSOR,
> +	SSP_PROXIMITY_RAW,
> +	SSP_ORIENTATION_SENSOR,
> +	SSP_STEP_DETECTOR,
> +	SSP_SIG_MOTION_SENSOR,
> +	SSP_GYRO_UNCALIB_SENSOR,
> +	SSP_GAME_ROTATION_VECTOR,
> +	SSP_ROTATION_VECTOR,
> +	SSP_STEP_COUNTER,
> +	SSP_BIO_HRM_RAW,
> +	SSP_BIO_HRM_RAW_FAC,
> +	SSP_BIO_HRM_LIB,
> +	SSP_SENSOR_MAX,
> +};
> +
> +struct ssp_data;
> +
> +/**
> + * struct ssp_sensor_data - Sensor object
> + * @process_data:	Callback to feed sensor data.
> + * @destroy:		Callback to destroy and cleanup sensor object.
> + * @prv_data:		Sensor private data.
> + * @type:		Used sensor type.
> + */
> +struct ssp_sensor_data {
> +	int (*process_data)(struct iio_dev *indio_dev, void *buf,
> +			    s64 timestamp);
> +	void *prv_data;
> +	enum ssp_sensor_type type;
> +};
> +
> +void ssp_register_consumer(struct iio_dev *indio_dev, enum ssp_sensor_type);
> +
> +int ssp_enable_sensor(struct ssp_data *data, enum ssp_sensor_type type,
> +		       u32 delay);
> +
> +int ssp_disable_sensor(struct ssp_data *data, enum ssp_sensor_type type);
> +
> +u32 ssp_get_sensor_delay(struct ssp_data *data, enum ssp_sensor_type);
> +
> +int ssp_change_delay(struct ssp_data *data, enum ssp_sensor_type type,
> +		     u32 delay);
> +
> +#endif /* _SSP_SENSORS_H_ */
> 
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