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https://gitea.osmocom.org/cellular-infrastructure/osmo-trx.git
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uhd: Use map container for for device parameter access
OsmoTRX is written in C++ so we might as well use built-in container types when applicable. Map access allows removal of significant amounts of special device handling code. Aggregate device rates and timing offsets into a single table with access keyed by device/tx-sps/rx-sps tuples. Change-Id: I8660f75a2b2a13488b913c07637bdd0f5f0f4cf9 Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
This commit is contained in:
Tom Tsou
@@ -21,6 +21,7 @@
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* See the COPYING file in the main directory for details.
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*/
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#include <map>
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#include "radioDevice.h"
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#include "Threads.h"
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#include "Logger.h"
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@@ -37,12 +38,6 @@
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#include <uhd/utils/msg.hpp>
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#endif
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#define B2XX_CLK_RT 26e6
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#define B2XX_MCBTS_CLK_RT 51.2e6
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#define E1XX_CLK_RT 52e6
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#define LIMESDR_CLK_RT (GSMRATE*32)
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#define B100_BASE_RT 400000
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#define USRP2_BASE_RT 390625
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#define USRP_TX_AMPL 0.3
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#define UMTRX_TX_AMPL 0.7
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#define LIMESDR_TX_AMPL 0.3
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@@ -73,15 +68,6 @@ enum uhd_dev_type {
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X3XX,
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UMTRX,
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LIMESDR,
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NUM_USRP_TYPES,
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};
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struct uhd_dev_offset {
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enum uhd_dev_type type;
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size_t tx_sps;
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size_t rx_sps;
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double offset;
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const std::string desc;
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};
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/*
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@@ -109,76 +95,44 @@ struct uhd_dev_offset {
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* Notes:
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* USRP1 with timestamps is not supported by UHD.
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*/
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static struct uhd_dev_offset uhd_offsets[] = {
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{ USRP1, 1, 1, 0.0, "USRP1 not supported" },
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{ USRP1, 4, 1, 0.0, "USRP1 not supported"},
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{ USRP2, 1, 1, 1.2184e-4, "N2XX 1 SPS" },
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{ USRP2, 4, 1, 7.6547e-5, "N2XX 4/1 SPS" },
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{ B100, 1, 1, 1.2104e-4, "B100 1 SPS" },
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{ B100, 4, 1, 7.9307e-5, "B100 4 SPS" },
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{ B200, 1, 1, B2XX_TIMING_1SPS, "B200 1 SPS" },
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{ B200, 4, 1, B2XX_TIMING_4SPS, "B200 4/1 Tx/Rx SPS" },
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{ B210, 1, 1, B2XX_TIMING_1SPS, "B210 1 SPS" },
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{ B210, 4, 1, B2XX_TIMING_4SPS, "B210 4/1 Tx/Rx SPS" },
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{ B2XX_MCBTS, 4, 4, B2XX_TIMING_MCBTS, "B200/B210 4 SPS Multi-ARFCN" },
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{ E1XX, 1, 1, 9.5192e-5, "E1XX 1 SPS" },
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{ E1XX, 4, 1, 6.5571e-5, "E1XX 4/1 Tx/Rx SPS" },
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{ E3XX, 1, 1, 1.84616e-4, "E3XX 1 SPS" },
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{ E3XX, 4, 1, 1.29231e-4, "E3XX 4/1 Tx/Rx SPS" },
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{ X3XX, 1, 1, 1.5360e-4, "X3XX 1 SPS"},
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{ X3XX, 4, 1, 1.1264e-4, "X3XX 4/1 Tx/Rx SPS"},
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{ UMTRX, 1, 1, 9.9692e-5, "UmTRX 1 SPS" },
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{ UMTRX, 4, 1, 7.3846e-5, "UmTRX 4/1 Tx/Rx SPS" },
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{ USRP2, 4, 4, 4.6080e-5, "N2XX 4 SPS" },
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{ B200, 4, 4, B2XX_TIMING_4_4SPS, "B200 4 SPS" },
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{ B210, 4, 4, B2XX_TIMING_4_4SPS, "B210 4 SPS" },
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{ X3XX, 4, 4, 5.6567e-5, "X3XX 4 SPS"},
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{ UMTRX, 4, 4, 5.1503e-5, "UmTRX 4 SPS" },
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{ LIMESDR, 4, 4, 16.5/GSMRATE, "STREAM/LimeSDR (4 SPS TX/RX)" },
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/* Device Type, Tx-SPS, Rx-SPS */
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typedef std::tuple<uhd_dev_type, int, int> dev_key;
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/* Device parameter descriptor */
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struct dev_desc {
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unsigned channels;
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double mcr;
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double rate;
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double offset;
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std::string str;
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};
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#define NUM_UHD_OFFSETS (sizeof(uhd_offsets)/sizeof(uhd_offsets[0]))
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/*
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* Select sample rate based on device type and requested samples-per-symbol.
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* The base rate is either GSM symbol rate, 270.833 kHz, or the minimum
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* usable channel spacing of 400 kHz.
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*/
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static double select_rate(uhd_dev_type type, int sps,
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RadioDevice::InterfaceType iface)
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{
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if ((sps != 4) && (sps != 1))
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return -9999.99;
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if (iface == RadioDevice::MULTI_ARFCN) {
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switch (type) {
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case B2XX_MCBTS:
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return 4 * MCBTS_SPACING;
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default:
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LOG(ALERT) << "Invalid device combination";
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return -9999.99;
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}
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}
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switch (type) {
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case USRP2:
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case X3XX:
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return USRP2_BASE_RT * sps;
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case B100:
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return B100_BASE_RT * sps;
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case B200:
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case B210:
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case E1XX:
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case E3XX:
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case UMTRX:
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case LIMESDR:
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return GSMRATE * sps;
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default:
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break;
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}
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LOG(ALERT) << "Unknown device type " << type;
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return -9999.99;
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}
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static const std::map<dev_key, dev_desc> dev_param_map {
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{ std::make_tuple(USRP2, 1, 1), { 1, 0.0, 390625, 1.2184e-4, "N2XX 1 SPS" } },
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{ std::make_tuple(USRP2, 4, 1), { 1, 0.0, 390625, 7.6547e-5, "N2XX 4/1 Tx/Rx SPS" } },
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{ std::make_tuple(USRP2, 4, 4), { 1, 0.0, 390625, 4.6080e-5, "N2XX 4 SPS" } },
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{ std::make_tuple(B100, 1, 1), { 1, 0.0, 400000, 1.2104e-4, "B100 1 SPS" } },
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{ std::make_tuple(B100, 4, 1), { 1, 0.0, 400000, 7.9307e-5, "B100 4/1 Tx/Rx SPS" } },
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{ std::make_tuple(B200, 1, 1), { 1, 26e6, GSMRATE, B2XX_TIMING_1SPS, "B200 1 SPS" } },
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{ std::make_tuple(B200, 4, 1), { 1, 26e6, GSMRATE, B2XX_TIMING_4SPS, "B200 4/1 Tx/Rx SPS" } },
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{ std::make_tuple(B200, 4, 4), { 1, 26e6, GSMRATE, B2XX_TIMING_4_4SPS, "B200 4 SPS" } },
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{ std::make_tuple(B210, 1, 1), { 2, 26e6, GSMRATE, B2XX_TIMING_1SPS, "B210 1 SPS" } },
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{ std::make_tuple(B210, 4, 1), { 2, 26e6, GSMRATE, B2XX_TIMING_4SPS, "B210 4/1 Tx/Rx SPS" } },
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{ std::make_tuple(B210, 4, 4), { 2, 26e6, GSMRATE, B2XX_TIMING_4_4SPS, "B210 4 SPS" } },
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{ std::make_tuple(E1XX, 1, 1), { 1, 52e6, GSMRATE, 9.5192e-5, "E1XX 1 SPS" } },
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{ std::make_tuple(E1XX, 4, 1), { 1, 52e6, GSMRATE, 6.5571e-5, "E1XX 4/1 Tx/Rx SPS" } },
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{ std::make_tuple(E3XX, 1, 1), { 2, 26e6, GSMRATE, 1.8462e-4, "E3XX 1 SPS" } },
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{ std::make_tuple(E3XX, 4, 1), { 2, 26e6, GSMRATE, 1.2923e-4, "E3XX 4/1 Tx/Rx SPS" } },
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{ std::make_tuple(X3XX, 1, 1), { 2, 0.0, 390625, 1.5360e-4, "X3XX 1 SPS" } },
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{ std::make_tuple(X3XX, 4, 1), { 2, 0.0, 390625, 1.1264e-4, "X3XX 4/1 Tx/Rx SPS" } },
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{ std::make_tuple(X3XX, 4, 4), { 2, 0.0, 390625, 5.6567e-5, "X3XX 4 SPS" } },
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{ std::make_tuple(UMTRX, 1, 1), { 2, 0.0, GSMRATE, 9.9692e-5, "UmTRX 1 SPS" } },
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{ std::make_tuple(UMTRX, 4, 1), { 2, 0.0, GSMRATE, 7.3846e-5, "UmTRX 4/1 Tx/Rx SPS"} },
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{ std::make_tuple(UMTRX, 4, 4), { 2, 0.0, GSMRATE, 5.1503e-5, "UmTRX 4 SPS" } },
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{ std::make_tuple(LIMESDR, 4, 4), { 1, GSMRATE*32, GSMRATE, 16.5/GSMRATE, "STREAM/LimeSDR (4 SPS TX/RX)" } },
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{ std::make_tuple(B2XX_MCBTS, 4, 4), { 1, 51.2e6, MCBTS_SPACING*4, B2XX_TIMING_MCBTS, "B200/B210 4 SPS Multi-ARFCN" } },
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};
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/*
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Sample Buffer - Allows reading and writing of timed samples using osmo-trx
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@@ -339,9 +293,7 @@ private:
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std::vector<smpl_buf *> rx_buffers;
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void init_gains();
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double get_dev_offset();
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int set_master_clk(double rate);
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int set_rates(double tx_rate, double rx_rate);
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void set_rates();
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bool parse_dev_type();
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bool flush_recv(size_t num_pkts);
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int check_rx_md_err(uhd::rx_metadata_t &md, ssize_t num_smpls);
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@@ -470,105 +422,22 @@ void uhd_device::init_gains()
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}
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double uhd_device::get_dev_offset()
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void uhd_device::set_rates()
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{
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struct uhd_dev_offset *offset = NULL;
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dev_desc desc = dev_param_map.at(dev_key(dev_type, tx_sps, rx_sps));
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if (desc.mcr != 0.0)
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usrp_dev->set_master_clock_rate(desc.mcr);
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/* Reject USRP1 */
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if (dev_type == USRP1) {
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LOG(ERR) << "Invalid device type";
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return 0.0;
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}
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tx_rate = (dev_type != B2XX_MCBTS) ? desc.rate * tx_sps : desc.rate;
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rx_rate = (dev_type != B2XX_MCBTS) ? desc.rate * rx_sps : desc.rate;
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/* Search for matching offset value */
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for (size_t i = 0; i < NUM_UHD_OFFSETS; i++) {
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if ((dev_type == uhd_offsets[i].type) &&
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(tx_sps == uhd_offsets[i].tx_sps) &&
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(rx_sps == uhd_offsets[i].rx_sps)) {
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offset = &uhd_offsets[i];
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break;
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}
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}
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usrp_dev->set_tx_rate(tx_rate);
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usrp_dev->set_rx_rate(rx_rate);
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tx_rate = usrp_dev->get_tx_rate();
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rx_rate = usrp_dev->get_rx_rate();
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if (!offset) {
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LOG(ERR) << "Invalid device configuration";
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return 0.0;
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}
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std::cout << "-- Setting " << offset->desc << std::endl;
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return offset->offset;
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}
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int uhd_device::set_master_clk(double clk_rate)
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{
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double actual, offset, limit = 1.0;
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try {
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usrp_dev->set_master_clock_rate(clk_rate);
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} catch (const std::exception &ex) {
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LOG(ALERT) << "UHD clock rate setting failed: " << clk_rate;
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LOG(ALERT) << ex.what();
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return -1;
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}
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actual = usrp_dev->get_master_clock_rate();
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offset = fabs(clk_rate - actual);
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if (offset > limit) {
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LOG(ALERT) << "Failed to set master clock rate";
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LOG(ALERT) << "Requested clock rate " << clk_rate;
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LOG(ALERT) << "Actual clock rate " << actual;
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return -1;
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}
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return 0;
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}
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int uhd_device::set_rates(double tx_rate, double rx_rate)
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{
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double offset_limit = 1.0;
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double tx_offset, rx_offset;
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/* B2XX and E1xx are the only device where we set FPGA clocking */
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if ((dev_type == B200) || (dev_type == B210) || (dev_type == E3XX)) {
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if (set_master_clk(B2XX_CLK_RT) < 0)
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return -1;
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} else if (dev_type == E1XX) {
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if (set_master_clk(E1XX_CLK_RT) < 0)
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return -1;
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} else if (dev_type == B2XX_MCBTS) {
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if (set_master_clk(B2XX_MCBTS_CLK_RT) < 0)
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return -1;
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}
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else if (dev_type == LIMESDR) {
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if (set_master_clk(LIMESDR_CLK_RT) < 0)
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return -1;
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}
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// Set sample rates
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try {
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usrp_dev->set_tx_rate(tx_rate);
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usrp_dev->set_rx_rate(rx_rate);
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} catch (const std::exception &ex) {
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LOG(ALERT) << "UHD rate setting failed";
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LOG(ALERT) << ex.what();
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return -1;
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}
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this->tx_rate = usrp_dev->get_tx_rate();
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this->rx_rate = usrp_dev->get_rx_rate();
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tx_offset = fabs(this->tx_rate - tx_rate);
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rx_offset = fabs(this->rx_rate - rx_rate);
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if ((tx_offset > offset_limit) || (rx_offset > offset_limit)) {
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LOG(ALERT) << "Actual sample rate differs from desired rate";
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LOG(ALERT) << "Tx/Rx (" << this->tx_rate << "/"
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<< this->rx_rate << ")";
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return -1;
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}
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return 0;
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ts_offset = (TIMESTAMP) desc.offset * rx_rate;
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LOG(INFO) << "Rates configured for " << desc.str;
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}
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double uhd_device::setTxGain(double db, size_t chan)
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@@ -641,85 +510,39 @@ double uhd_device::getRxGain(size_t chan)
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*/
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bool uhd_device::parse_dev_type()
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{
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std::string mboard_str, dev_str;
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uhd::property_tree::sptr prop_tree;
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size_t usrp1_str, usrp2_str, e100_str, e110_str, e310_str, e3xx_str,
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b100_str, b200_str, b210_str, x300_str, x310_str, umtrx_str, limesdr_str;
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uhd::property_tree::sptr prop_tree = usrp_dev->get_device()->get_tree();
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std::string devString = prop_tree->access<std::string>("/name").get();
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std::string mboardString = usrp_dev->get_mboard_name();
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prop_tree = usrp_dev->get_device()->get_tree();
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dev_str = prop_tree->access<std::string>("/name").get();
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mboard_str = usrp_dev->get_mboard_name();
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const std::map<std::string, std::pair<uhd_dev_type, TxWindowType>> devStringMap {
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{ "B100", { B100, TX_WINDOW_USRP1 } },
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{ "B200", { B200, TX_WINDOW_USRP1 } },
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{ "B200mini", { B200, TX_WINDOW_USRP1 } },
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{ "B210", { B210, TX_WINDOW_USRP1 } },
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{ "E100", { E1XX, TX_WINDOW_FIXED } },
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{ "E110", { E1XX, TX_WINDOW_FIXED } },
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{ "E310", { E3XX, TX_WINDOW_FIXED } },
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{ "E3XX", { E3XX, TX_WINDOW_FIXED } },
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{ "X300", { X3XX, TX_WINDOW_FIXED } },
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{ "X310", { X3XX, TX_WINDOW_FIXED } },
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{ "UmTRX", { UMTRX, TX_WINDOW_FIXED } },
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{ "STREAM", { LIMESDR, TX_WINDOW_USRP1 } },
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};
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usrp1_str = dev_str.find("USRP1");
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usrp2_str = dev_str.find("USRP2");
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b100_str = mboard_str.find("B100");
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b200_str = mboard_str.find("B200");
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b210_str = mboard_str.find("B210");
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e100_str = mboard_str.find("E100");
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e110_str = mboard_str.find("E110");
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e310_str = mboard_str.find("E310");
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e3xx_str = mboard_str.find("E3XX");
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x300_str = mboard_str.find("X300");
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x310_str = mboard_str.find("X310");
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umtrx_str = dev_str.find("UmTRX");
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// LimeSDR is based on STREAM board, so it's advertized as such
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limesdr_str = dev_str.find("STREAM");
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// Compare UHD motherboard and device strings */
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std::string found;
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if (devStringMap.find(devString) != devStringMap.end())
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found = devString;
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else if (devStringMap.find(mboardString) != devStringMap.end())
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found = mboardString;
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if (usrp1_str != std::string::npos) {
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LOG(ALERT) << "USRP1 is not supported using the UHD driver";
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LOG(ALERT) << "Please compile with GNU Radio libusrp support";
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dev_type = USRP1;
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if (found.empty()) {
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LOG(ALERT) << "Unsupported device " << devString;
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return false;
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}
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if (b100_str != std::string::npos) {
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tx_window = TX_WINDOW_USRP1;
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dev_type = B100;
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} else if (b200_str != std::string::npos) {
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tx_window = TX_WINDOW_USRP1;
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dev_type = B200;
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} else if (b210_str != std::string::npos) {
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tx_window = TX_WINDOW_USRP1;
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dev_type = B210;
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} else if (e100_str != std::string::npos) {
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tx_window = TX_WINDOW_FIXED;
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dev_type = E1XX;
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} else if (e110_str != std::string::npos) {
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tx_window = TX_WINDOW_FIXED;
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dev_type = E1XX;
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} else if (usrp2_str != std::string::npos) {
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tx_window = TX_WINDOW_FIXED;
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dev_type = USRP2;
|
||||
} else if ((e310_str != std::string::npos) ||
|
||||
(e3xx_str != std::string::npos)) {
|
||||
tx_window = TX_WINDOW_FIXED;
|
||||
dev_type = E3XX;
|
||||
} else if (x300_str != std::string::npos) {
|
||||
tx_window = TX_WINDOW_FIXED;
|
||||
dev_type = X3XX;
|
||||
} else if (x310_str != std::string::npos) {
|
||||
tx_window = TX_WINDOW_FIXED;
|
||||
dev_type = X3XX;
|
||||
} else if (umtrx_str != std::string::npos) {
|
||||
tx_window = TX_WINDOW_FIXED;
|
||||
dev_type = UMTRX;
|
||||
} else if (limesdr_str != std::string::npos) {
|
||||
tx_window = TX_WINDOW_USRP1;
|
||||
dev_type = LIMESDR;
|
||||
} else {
|
||||
LOG(ALERT) << "Unknown UHD device type "
|
||||
<< dev_str << " " << mboard_str;
|
||||
return false;
|
||||
}
|
||||
|
||||
if (tx_window == TX_WINDOW_USRP1) {
|
||||
LOG(INFO) << "Using USRP1 type transmit window for "
|
||||
<< dev_str << " " << mboard_str;
|
||||
} else {
|
||||
LOG(INFO) << "Using fixed transmit window for "
|
||||
<< dev_str << " " << mboard_str;
|
||||
}
|
||||
|
||||
dev_type = devStringMap.at(found).first;
|
||||
tx_window = devStringMap.at(found).second;
|
||||
return true;
|
||||
}
|
||||
|
||||
@@ -820,14 +643,12 @@ int uhd_device::open(const std::string &args, int ref, bool swap_channels)
|
||||
|
||||
usrp_dev->set_clock_source(refstr);
|
||||
|
||||
// Set rates
|
||||
double _rx_rate = select_rate(dev_type, rx_sps, iface);
|
||||
double _tx_rate = select_rate(dev_type, tx_sps, iface);
|
||||
|
||||
if ((_tx_rate < 0.0) || (_rx_rate < 0.0))
|
||||
return -1;
|
||||
if (set_rates(_tx_rate, _rx_rate) < 0)
|
||||
try {
|
||||
set_rates();
|
||||
} catch (const std::exception &e) {
|
||||
LOG(ALERT) << "UHD rate setting failed - " << e.what();
|
||||
return -1;
|
||||
}
|
||||
|
||||
// Set RF frontend bandwidth
|
||||
if (dev_type == UMTRX) {
|
||||
@@ -860,17 +681,6 @@ int uhd_device::open(const std::string &args, int ref, bool swap_channels)
|
||||
for (size_t i = 0; i < rx_buffers.size(); i++)
|
||||
rx_buffers[i] = new smpl_buf(buf_len, rx_rate);
|
||||
|
||||
// Set receive chain sample offset. Trigger the EDGE offset
|
||||
// table by checking for 4 SPS on the receive path. No other
|
||||
// configuration supports using 4 SPS.
|
||||
double offset = get_dev_offset();
|
||||
if (offset == 0.0) {
|
||||
LOG(ERR) << "Unsupported configuration, no correction applied";
|
||||
ts_offset = 0;
|
||||
} else {
|
||||
ts_offset = (TIMESTAMP) (offset * rx_rate);
|
||||
}
|
||||
|
||||
// Initialize and shadow gain values
|
||||
init_gains();
|
||||
|
||||
@@ -1236,7 +1046,7 @@ uhd::tune_request_t uhd_device::select_freq(double freq, size_t chan, bool tx)
|
||||
|
||||
/* Find center frequency between channels */
|
||||
rf_spread = fabs(freqs[!chan] - freq);
|
||||
if (rf_spread > B2XX_CLK_RT) {
|
||||
if (rf_spread > dev_param_map.at(dev_key(B210, 1, 1)).mcr) {
|
||||
LOG(ALERT) << rf_spread << "Hz tuning spread not supported\n";
|
||||
return treq;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user