Bryan Biedenkapp
1 month ago
parent
dbc30e97b4
commit
536997ac10
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Digital Voice Modem - Common Library
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* GPLv2 Open Source. Use is subject to license terms.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright (C) 2026 Bryan Biedenkapp, N2PLL
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*
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*/
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#include "Defines.h"
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#include "dmr/lc/csbk/CSBK_AHOY.h"
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using namespace dmr::defines;
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using namespace dmr::lc;
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using namespace dmr::lc::csbk;
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#include <cassert>
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// ---------------------------------------------------------------------------
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// Public Class Members
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// ---------------------------------------------------------------------------
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/* Initializes a new instance of the CSBK_AHOY class. */
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CSBK_AHOY::CSBK_AHOY() : CSBK(),
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m_serviceOptionsMirror(0U),
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m_serviceKindFlag(false),
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m_ambientListening(false),
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m_appendedBlocks(0U),
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m_serviceKind(0U)
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{
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m_CSBKO = CSBKO::AHOY;
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}
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/* Decode a control signalling block. */
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bool CSBK_AHOY::decode(const uint8_t* data)
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{
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assert(data != nullptr);
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uint8_t csbk[DMR_CSBK_LENGTH_BYTES];
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::memset(csbk, 0x00U, DMR_CSBK_LENGTH_BYTES);
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bool ret = CSBK::decode(data, csbk);
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if (!ret)
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return false;
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ulong64_t csbkValue = CSBK::toValue(csbk);
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m_serviceOptionsMirror = (uint8_t)((csbkValue >> 57U) & 0x7FU); // 7-bit Service Options Mirror
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m_serviceKindFlag = ((csbkValue >> 56U) & 0x01U) != 0U; // Service Kind Flag
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m_ambientListening = ((csbkValue >> 55U) & 0x01U) != 0U; // Ambient Listening Flag
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m_GI = ((csbkValue >> 54U) & 0x01U) != 0U; // GI Flag
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m_appendedBlocks = (uint8_t)((csbkValue >> 52U) & 0x03U); // Appended Blocks
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m_serviceKind = (uint8_t)((csbkValue >> 48U) & 0x0FU); // Service Kind
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m_dstId = (uint32_t)((csbkValue >> 24U) & 0xFFFFFFU); // Destination ID
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m_srcId = (uint32_t)(csbkValue & 0xFFFFFFU); // Source ID
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return true;
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}
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/* Encode a control signalling block. */
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void CSBK_AHOY::encode(uint8_t* data)
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{
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assert(data != nullptr);
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ulong64_t csbkValue = 0U;
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csbkValue = m_serviceOptionsMirror & 0x7FU; // 7-bit Service Options Mirror
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csbkValue = (csbkValue << 1U) | (m_serviceKindFlag ? 1U : 0U); // Service Kind Flag
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csbkValue = (csbkValue << 1U) | (m_ambientListening ? 1U : 0U); // Ambient Listening Flag
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csbkValue = (csbkValue << 1U) | (m_GI ? 1U : 0U); // GI Flag
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csbkValue = (csbkValue << 2U) | (m_appendedBlocks & 0x03U); // Appended Blocks
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csbkValue = (csbkValue << 4U) | (m_serviceKind & 0x0FU); // Service Kind
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csbkValue = (csbkValue << 24U) | (m_dstId & 0xFFFFFFU); // Destination ID
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csbkValue = (csbkValue << 24U) | (m_srcId & 0xFFFFFFU); // Source ID
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std::unique_ptr<uint8_t[]> csbk = CSBK::fromValue(csbkValue);
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CSBK::encode(data, csbk.get());
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}
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/* Returns a string that represents the current CSBK. */
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std::string CSBK_AHOY::toString()
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{
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return std::string("CSBKO, AHOY (Enquiry from TSCC)");
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}
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// ---------------------------------------------------------------------------
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// Private Class Members
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// ---------------------------------------------------------------------------
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/* Internal helper to copy the the class. */
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void CSBK_AHOY::copy(const CSBK_AHOY& data)
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{
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CSBK::copy(data);
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m_serviceOptionsMirror = data.m_serviceOptionsMirror;
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m_serviceKindFlag = data.m_serviceKindFlag;
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m_ambientListening = data.m_ambientListening;
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m_appendedBlocks = data.m_appendedBlocks;
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m_serviceKind = data.m_serviceKind;
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}
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@ -0,0 +1,91 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Digital Voice Modem - Common Library
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* GPLv2 Open Source. Use is subject to license terms.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright (C) 2026 Bryan Biedenkapp, N2PLL
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*
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*/
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/**
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* @file CSBK_AHOY.h
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* @ingroup dmr_csbk
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* @file CSBK_AHOY.cpp
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* @ingroup dmr_csbk
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*/
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#if !defined(__DMR_LC_CSBK__CSBK_AHOY_H__)
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#define __DMR_LC_CSBK__CSBK_AHOY_H__
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#include "common/Defines.h"
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#include "common/dmr/lc/CSBK.h"
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namespace dmr
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{
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namespace lc
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{
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namespace csbk
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{
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// ---------------------------------------------------------------------------
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// Class Declaration
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// ---------------------------------------------------------------------------
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/**
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* @brief Implements the C_AHOY enquiry from a TSCC.
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* @ingroup dmr_csbk
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*/
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class DVM_COMMON_API CSBK_AHOY : public CSBK {
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public:
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/**
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* @brief Initializes a new instance of the CSBK_AHOY class.
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*/
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CSBK_AHOY();
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/**
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* @brief Decodes a control signalling block.
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* @param[in] data Buffer containing a CSBK to decode.
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*/
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bool decode(const uint8_t* data) override;
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/**
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* @brief Encodes a control signalling block.
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* @param[out] data Buffer to encode a CSBK.
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*/
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void encode(uint8_t* data) override;
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/**
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* @brief Returns a string that represents the current CSBK.
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* @returns std::string String representation of the CSBK.
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*/
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std::string toString() override;
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public:
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/**
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* @brief Service Options.
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*/
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DECLARE_PROPERTY(uint8_t, serviceOptionsMirror, ServiceOptionsMirror);
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/**
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* @brief Service Kind Flag.
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*/
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DECLARE_PROPERTY(bool, serviceKindFlag, ServiceKindFlag);
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/**
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* @brief Ambient Listening.
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*/
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DECLARE_PROPERTY(bool, ambientListening, AmbientListening);
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/**
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* @brief Appended Blocks.
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*/
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DECLARE_PROPERTY(uint8_t, appendedBlocks, AppendedBlocks);
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/**
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* @brief Service Kind.
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*/
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DECLARE_PROPERTY(uint8_t, serviceKind, ServiceKind);
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DECLARE_COPY(CSBK_AHOY);
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};
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} // namespace csbk
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} // namespace lc
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} // namespace dmr
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#endif // __DMR_LC_CSBK__CSBK_AHOY_H__
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