[RFC/PATCH 1/6] iio:sensorhub: Add sensorhub common library

[Karol Wrona <k.wrona@samsung.com>]

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@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
---
 include/linux/iio/common/ssp_sensors.h |   82 ++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 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_ */
-- 
1.7.9.5