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75 lines
1.8 KiB
75 lines
1.8 KiB
// SPDX-License-Identifier: GPL-2.0-only
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/**
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* Digital Voice Modem - Hotspot Firmware
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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 / Hotspot Firmware
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* @derivedfrom MMDVM_HS (https://github.com/g4klx/MMDVM_HS)
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* @license GPLv2 License (https://opensource.org/licenses/GPL-2.0)
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*
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* Copyright (C) 2016 Jonathan Naylor, G4KLX
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* Copyright (C) 2018 Andy Uribe, CA6JAU
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*
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*/
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#include "Globals.h"
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#include "CalRSSI.h"
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#include "Utils.h"
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// ---------------------------------------------------------------------------
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// Public Class Members
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// ---------------------------------------------------------------------------
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/// <summary>
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/// Initializes a new instance of the CalRSSI class.
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/// </summary>
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CalRSSI::CalRSSI() :
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m_count(0U),
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m_navg(0U),
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m_accum(0U),
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m_min(0xFFFFU),
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m_max(0x0000U)
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{
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/* stub */
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}
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/// <summary>
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/// Sample RSSI values from the air interface.
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/// </summary>
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void CalRSSI::process()
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{
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m_count++;
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if (m_count >= 32000U) {
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uint16_t rssi = io.readRSSI();
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m_count = 0U;
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m_navg++;
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m_accum += rssi;
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if (rssi > m_max)
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m_max = rssi;
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if (rssi < m_min)
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m_min = rssi;
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if (m_navg >= 6U) {
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uint16_t ave = m_accum / 6U;
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uint8_t buffer[6U];
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buffer[0U] = (m_max >> 8) & 0xFFU;
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buffer[1U] = (m_max >> 0) & 0xFFU;
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buffer[2U] = (m_min >> 8) & 0xFFU;
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buffer[3U] = (m_min >> 0) & 0xFFU;
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buffer[4U] = (ave >> 8) & 0xFFU;
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buffer[5U] = (ave >> 0) & 0xFFU;
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serial.writeRSSIData(buffer, 6U);
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m_navg = 0U;
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m_accum = 0U;
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m_min = 0xFFFFU;
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m_max = 0x0000U;
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}
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}
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}
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