139 lines
4.0 KiB
C++
139 lines
4.0 KiB
C++
/*
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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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* setup pluto 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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// ============= Configuration =============
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float RX_BW = 1; // MHz
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float TX_BW = 0.1; // MHz
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double RX_FREQ = (double)RXBASEQRG; // Hz
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double TX_FREQ = (double)TXBASEQRG; // Hz
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// =========================================
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// device context
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struct iio_context *ctx = NULL;
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// Streaming devices
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struct iio_device *tx;
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struct iio_device *rx;
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// channels
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struct iio_channel *rx0_i = NULL;
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struct iio_channel *rx0_q = NULL;
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struct iio_channel *tx0_i = NULL;
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struct iio_channel *tx0_q = NULL;
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// buffers
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struct iio_buffer *rxbuf = NULL;
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struct iio_buffer *txbuf = NULL;
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// Stream configurations
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stream_cfg rxcfg;
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stream_cfg txcfg;
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void pluto_setup()
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{
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int ret;
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// set default configuration from pluto.h
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uint32_t srate = (uint32_t)SAMPRATE;
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if(srate < 2100000) srate = 3000000;
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// RX stream config
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rxcfg.bw_hz = MHZ(RX_BW); // rx rf bandwidth
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rxcfg.fs_hz = srate; // rx sample rate
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rxcfg.lo_hz = RX_FREQ; // rx rf frequency
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rxcfg.rfport = "A_BALANCED"; // port A (select for rf freq.)
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// TX stream config
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txcfg.bw_hz = MHZ(TX_BW); // tx rf bandwidth
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txcfg.fs_hz = srate; // tx sample rate (must be same as RX samp rate)
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txcfg.lo_hz = TX_FREQ; // tx rf frequency
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txcfg.rfport = "A"; // port A (select for rf freq.)
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printf("RX frequency : %f MHz\n", (double)rxcfg.lo_hz / 1e6);
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printf("TX frequency : %f MHz\n", (double)txcfg.lo_hz / 1e6);
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printf("Samplerate : %f MHz\n", (double)SAMPRATE / 1e6);
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printf("RX Bandwidth : %f MHz\n", (double)rxcfg.bw_hz / 1e6);
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printf("TX Bandwidth : %f MHz\n", (double)txcfg.bw_hz / 1e6);
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printf("TX Gain : %d dBm\n",txpower);
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// Initialize Pluto
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ctx = iio_create_context_from_uri(pluto_context_name);
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if(!ctx) {printf("Cannot find a pluto at: %s\n", pluto_context_name); exit(0);}
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int devanz = iio_context_get_devices_count(ctx);
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if(devanz <= 0)
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{
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printf("NO Pluto devices found\n");
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exit(0);
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}
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// noch keine PTT
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ret = get_ad9361_stream_dev(ctx, TX, &tx);
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if(!ret) {printf("TX streaming device not found. Pluto error %d\n",errno); exit(0);}
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ret = get_ad9361_stream_dev(ctx, RX, &rx);
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if(!ret) {printf("RX streaming device not found. Pluto error %d\n",errno); exit(0);}
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cfg_ad9361_streaming_ch(ctx, &rxcfg, RX, 0);
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// with the following command the F5OEO Firmware activates the PTT on GPIO
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cfg_ad9361_streaming_ch(ctx, &txcfg, TX, 0);
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get_ad9361_stream_ch(ctx, RX, rx, 0, &rx0_i);
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get_ad9361_stream_ch(ctx, RX, rx, 1, &rx0_q);
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get_ad9361_stream_ch(ctx, TX, tx, 0, &tx0_i);
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get_ad9361_stream_ch(ctx, TX, tx, 1, &tx0_q);
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if(SAMPRATE < 2100000)
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{
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iio_device *dev9 = iio_context_find_device(ctx, "ad9361-phy");
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ad9361_set_bb_rate(dev9,(unsigned long)SAMPRATE);
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}
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iio_channel_enable(rx0_i);
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iio_channel_enable(rx0_q);
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iio_channel_enable(tx0_i);
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iio_channel_enable(tx0_q);
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rxbuf = iio_device_create_buffer(rx, PLUTOBUFSIZE, false);
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if (!rxbuf) {
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perror("Could not create RX buffer");
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}
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txbuf = iio_device_create_buffer(tx, PLUTOBUFSIZE, false);
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if (!txbuf) {
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perror("Could not create TX buffer");
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}
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// Pluto init finished
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// create capture/playback thread
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init_runloop();
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} |