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144 lines
4.0 KiB
144 lines
4.0 KiB
/**
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* Digital Voice Modem - Host Software
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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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* @package DVM / Host Software
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*
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*/
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//
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// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
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// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
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//
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/*
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* Copyright (C) 2021 by Bryan Biedenkapp N2PLL
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#if !defined(__DMR_UTILS_H__)
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#define __DMR_UTILS_H__
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#include "Defines.h"
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#include "dmr/DMRDefines.h"
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namespace dmr
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{
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// ---------------------------------------------------------------------------
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// Class Declaration
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// This class implements various helper functions for validating DMR data.
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// ---------------------------------------------------------------------------
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class HOST_SW_API DMRUtils {
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public:
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/// <summary>Helper to test and clamp a DMR color code.</summary>
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static uint32_t colorCode(uint32_t colorCode)
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{
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if (colorCode < 0U) { // clamp to 0
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colorCode = 0U;
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}
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if (colorCode > 15U) { // clamp to 15
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colorCode = 15U;
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}
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return colorCode;
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}
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/// <summary>Helper to test and clamp a DMR site ID.</summary>
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static uint32_t siteId(uint32_t id, uint8_t siteModel)
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{
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if (id == 0U) { // clamp to 1
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id = 1U;
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}
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switch (siteModel)
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{
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case SITE_MODEL_TINY:
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{
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if (id > 0x07U) { // clamp to $7
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id = 0x07U;
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}
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}
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break;
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case SITE_MODEL_SMALL:
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{
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if (id > 0x1FU) { // clamp to $1F
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id = 0x1FU;
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}
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}
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break;
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case SITE_MODEL_LARGE:
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{
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if (id > 0xFFU) { // clamp to $FF
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id = 0xFFU;
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}
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}
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break;
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case SITE_MODEL_HUGE:
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{
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if (id > 0x7FFU) { // clamp to $7FF
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id = 0x7FFU;
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}
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}
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break;
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}
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return id;
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}
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/// <summary>Helper to test and clamp a DMR network ID.</summary>
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static uint32_t netId(uint32_t id, uint8_t siteModel)
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{
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if (id == 0U) { // clamp to 1
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id = 1U;
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}
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switch (siteModel) {
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case SITE_MODEL_TINY:
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{
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if (id > 0x1FFU) { // clamp to $1FF
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id = 0x1FFU;
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}
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}
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break;
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case SITE_MODEL_SMALL:
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{
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if (id > 0x7FU) { // clamp to $7F
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id = 0x7FU;
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}
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}
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break;
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case SITE_MODEL_LARGE:
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{
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if (id > 0x1FU) { // clamp to $1F
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id = 0x1FU;
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}
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}
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break;
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case SITE_MODEL_HUGE:
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{
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if (id > 0x03U) { // clamp to $3
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id = 0x03U;
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}
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}
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break;
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}
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return id;
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}
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};
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} // namespace dmr
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#endif // __DMR_UTILS_H__
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