/** * Copyright 2016-2023 * * Bernd-Christian Renner, and * Hamburg University of Technology (TUHH). * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. Neither the name of the copyright holder nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "aci.h" #include "aci/types/powerlevel_rsp.h" #include "aci_powerlevel.h" #include <hal_adda.h> #include <channelquality.h> /************************************************************************** * private prototypes */ /************************************************************************** * private functions */ uint8_t aci_powerlevel_fillReply(uint8_t * payload) { aci_powerlevel_rsp_t * p = (aci_powerlevel_rsp_t *)payload; uint16_t i; fp32_t Ueff; fp32_t Umean; fp16_t sample; // calculate power // @see channelquality.h/c for details on the method Umean = 0; Ueff = 0; for (i = 0; i < RX_SAMPLES_PER_SYMBOL; i++) { while (! adda_getSample(&sample)) { ; } Ueff += fp16_square(sample); Umean += sample; } p->power = channelquality_calcPowerLevel(Ueff, Umean, RX_SAMPLES_PER_SYMBOL, 1); // the reference is a simple sine (useful?) return sizeof(aci_powerlevel_rsp_t); } /************************************************************************** * public functions */ bool aci_powerlevel_processCmd(const mm_packet_t * pkt) { // read-only command return true; }