68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
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/*
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* include/linux/trace_imu.h
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*
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* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*/
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#ifndef __TRACE_IMU_H
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#define __TRACE_IMU_H
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#define CREATE_TRACE_POINTS
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#include <trace/events/atrace.h>
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#define TRACE_SENSOR_ID (100)
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/*
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* (keep sync with sensor HAL trace.h)
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* COOKIE definition for sensor HAL ATRACE events
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*
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* 3322222222221111111111000 0 000000 - Bit
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* 1098765432109876543210987 6 543210 Position
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* +-------------------------+-+------+
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* | TIMESTAMP |P| STYPE|
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* +-------------------------+-+------+
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*
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* Where:
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* TIMESTAMP = Sensor event timestamp
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* P = Private sensor bit indicator (1=private, 0=not private)
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* STYPE = Sensor TYPE
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*/
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#define COOKIE_TOTAL_BITS 32
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#define COOKIE_SENSOR_TYPE_BITS 6
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#define COOKIE_SENSOR_PRIVATE_BITS 1
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#define COOKIE_TIMESTAMP_BITS \
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(COOKIE_TOTAL_BITS - COOKIE_SENSOR_PRIVATE_BITS - COOKIE_SENSOR_TYPE_BITS)
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#define COOKIE_SENSOR_TYPE_SHIFT 0
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#define COOKIE_SENSOR_PRIVATE_SHIFT COOKIE_SENSOR_TYPE_BITS
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#define COOKIE_TIMESTAMP_SHIFT \
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(COOKIE_SENSOR_PRIVATE_BITS + COOKIE_SENSOR_TYPE_BITS)
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#define COOKIE_SENSOR_TYPE_MASK \
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(((1 << COOKIE_SENSOR_TYPE_BITS) - 1) << COOKIE_SENSOR_TYPE_SHIFT)
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#define COOKIE_SENSOR_PRIVATE_MASK \
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(((1 << COOKIE_SENSOR_PRIVATE_BITS) - 1) << COOKIE_SENSOR_PRIVATE_SHIFT)
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#define COOKIE_TIMESTAMP_MASK \
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(((1 << COOKIE_TIMESTAMP_BITS) - 1) << COOKIE_TIMESTAMP_SHIFT)
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#define SENSOR_TYPE_PRIVATE_BIT_POS 16
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#define TIMESTAMP_SCALE_SHIFT 16 // divide by 65536
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#define COOKIE(sensor_type,timestamp) \
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(((sensor_type >> (COOKIE_TOTAL_BITS - SENSOR_TYPE_PRIVATE_BIT_POS - \
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COOKIE_SENSOR_PRIVATE_SHIFT)) & COOKIE_SENSOR_PRIVATE_MASK) | \
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((sensor_type << COOKIE_SENSOR_TYPE_SHIFT) & COOKIE_SENSOR_TYPE_MASK) | \
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(((timestamp >> TIMESTAMP_SCALE_SHIFT) << COOKIE_TIMESTAMP_SHIFT) \
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& COOKIE_TIMESTAMP_MASK))
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#endif /* __TRACE_IMU_H */
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