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https://github.com/gnss-sdr/gnss-sdr
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51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/*!
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* \file bits.h
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* \brief Utilities for bit manipulation of the libswiftnav library
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* \author Fergus Noble <fergus@swift-nav.com>
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*
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* -----------------------------------------------------------------------------
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* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
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* This file is part of GNSS-SDR.
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*
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* This file was originally borrowed from libswiftnav
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* <https://github.com/swift-nav/libswiftnav>,
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* a portable C library implementing GNSS related functions and algorithms,
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* and then modified by J. Arribas and C. Fernandez
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*
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* Copyright (C) 2013, 2016 Swift Navigation Inc.
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* Contact: Fergus Noble <fergus@swift-nav.com>
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*
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* SPDX-License-Identifier: LGPL-3.0-only
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*
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*/
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#ifndef GNSS_SDR_BITS_H
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#define GNSS_SDR_BITS_H
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#include "swift_common.h"
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/** \addtogroup Telemetry_Decoder
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* \{ */
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/** \addtogroup Telemetry_Decoder_libswiftcnav telemetry_decoder_libswiftcnav
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* Utilities for CNAV message decoding by Swift Navigation Inc.
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* \{ */
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uint8_t parity(uint32_t x);
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uint32_t getbitu(const uint8_t *buff, uint32_t pos, uint8_t len);
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int32_t getbits(const uint8_t *buff, uint32_t pos, uint8_t len);
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void setbitu(uint8_t *buff, uint32_t pos, uint32_t len, uint32_t data);
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void setbits(uint8_t *buff, uint32_t pos, uint32_t len, int32_t data);
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void bitcopy(void *dst, uint32_t dst_index,
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const void *src, uint32_t src_index, uint32_t count);
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void bitshl(void *buf, uint32_t size, uint32_t shift);
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uint8_t count_bits_u64(uint64_t v, uint8_t bv);
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uint8_t count_bits_u32(uint32_t v, uint8_t bv);
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uint8_t count_bits_u16(uint16_t v, uint8_t bv);
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uint8_t count_bits_u8(uint8_t v, uint8_t bv);
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/** \} */
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/** \} */
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#endif /* GNSS_SDR_BITS_H_ */
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