84 lines
2.5 KiB
C++
84 lines
2.5 KiB
C++
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/*
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* Adalm Pluto Driver
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* ==================
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* Author: DJ0ABR
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*
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* (c) DJ0ABR
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* www.dj0abr.de
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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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* =========================
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* runloop for RX and TX
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* =========================
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*
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*/
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#include "../qo100trx.h"
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void* plutorun_threadfunction(void* param);
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void init_runloop()
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{
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pthread_t plutorunthread;
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pthread_create(&plutorunthread, NULL, plutorun_threadfunction, NULL);
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}
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void* plutorun_threadfunction(void* param)
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{
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ssize_t nbytes_rx, nbytes_tx;
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uint8_t *p_dat, *p_start;
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pthread_detach(pthread_self());
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printf("entering pluto loop, *** PID:%ld ***\n",syscall(SYS_gettid));
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while(keeprunning)
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{
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// ====== receive samples from pluto ======
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// Refill RX buffer
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nbytes_rx = iio_buffer_refill(rxbuf);
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if (nbytes_rx < 0) { printf("Error refilling buf %d\n",(int) nbytes_rx); }
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//measure_samplerate(0,nbytes_rx/4,10);
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p_start = (uint8_t *)iio_buffer_first(rxbuf, rx0_i);
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//for(int ix=0; ix<nbytes_rx; ix++)
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// measure_maxval(p_start[ix]);
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// sample buffer begins at p_start with length (PLUTOBUFSIZE * p_inc) bytes
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write_fifo(RXfifo,p_start,nbytes_rx);
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write_fifo(FFTfifo,p_start,nbytes_rx);
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// ====== send samples to pluto ======
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// get samples received via UDP
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static uint8_t pidata[PLUTOBUFSIZE*4];
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int lenfifo = read_fifo(TXfifo, pidata, PLUTOBUFSIZE*4);
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if(lenfifo)
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{
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p_dat = (uint8_t *)iio_buffer_first(txbuf, tx0_i);
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memcpy(p_dat,pidata,PLUTOBUFSIZE*4);
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nbytes_tx = iio_buffer_push(txbuf);
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if (nbytes_tx < 0) { printf("Error pushing buf %d\n", (int) nbytes_tx); }
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}
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usleep(1000);
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}
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printf("exit pluto loop\n");
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pthread_exit(NULL); // self terminate this thread
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return NULL;
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}
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