Add support for HackRf.

Author: nqbit

docs/commands/goesrecv.rst

@@ -13,17 +13,19 @@ Demodulate and decode signal into packet stream.
    See :ref:`minimal_receiver` for an example setup.
 
 You can use goesrecv with an RTL-SDR_ (make sure you have one with the
-R820T tuner chip), or an Airspy_ (confirmed to work with the Mini).
-The raw signal is then processed by the demodulator and turned into a
-stream of 1s and 0s. This is then passed to the decoder where the
-bitstream is synchronized and error correction is applied. Every valid
-packet is then forwarded to downstream tools (e.g. goeslrit or
-goesproc).
+R820T tuner chip), an Airspy_ (confirmed to work with the Mini), or a
+HackRf_ (confirmed to work with a HackRf One). The raw signal is then
+processed by the demodulator and turned into a stream of 1s and 0s. This
+is then passed to the decoder where the bitstream is synchronized and
+error correction is applied. Every valid packet is then forwarded to
+downstream tools (e.g. goeslrit or goesproc).
 
 .. _rtl-sdr:
   https://rtlsdr.org/
 .. _airspy:
   https://airspy.com/
+.. _hackrf:
+  https://greatscottgadgets.com/hackrf/
 
 Options
 =======

docs/installation.rst

@@ -51,7 +51,8 @@ Install system dependencies:
 
 If you want to run goesrecv on this machine, you also have to install
 the development packages of the drivers the SDRs you want to use;
-``librtlsdr-dev`` for an RTL-SDR, ``libairspy-dev`` for an Airspy.
+``librtlsdr-dev`` for an RTL-SDR, ``libairspy-dev`` for an Airspy,
+and ``libhackrf-dev`` for a HackRf.
 
 Now you can build and install goestools:
 

etc/goesrecv.conf

@@ -33,6 +33,14 @@ source = "airspy"
 # bias_tee = false
 # device_index = 0
 
+# [hackrf]
+# frequency = 1694100000
+# sample_rate = 8000000
+# if_gain = 32
+# bb_gain = 34
+# rf_amp_enabled = true
+# bias_tee = false
+
 # [nanomsg]
 # sample_rate = 2400000
 # connect = "tcp://1.2.3.4:5005"

scripts/setup_raspbian.sh

@@ -23,6 +23,7 @@ urls() {
     scripts/list_raspbian_urls.py \
         librtlsdr-dev \
         libairspy-dev \
+        libhackrf-dev \
         libusb-1.0-0-dev \
         libudev1 \
         zlib1g-dev \

src/goesrecv/CMakeLists.txt

@@ -29,6 +29,14 @@ else()
   target_link_libraries(rtlsdr_source ${RTLSDR_LIBRARIES} publisher stdc++)
 endif()
 
+pkg_check_modules(HACKRF libhackrf)
+if(NOT HACKRF_FOUND)
+  message(WARNING "Unable to find libhackrf")
+else()
+  add_library(hackrf_source hackrf_source.cc)
+  target_link_libraries(hackrf_source ${HACKRF_LIBRARIES} publisher stdc++)
+endif()
+
 add_library(nanomsg_source nanomsg_source.cc)
 target_link_libraries(nanomsg_source nanomsg publisher stdc++)
 
@@ -60,6 +68,7 @@ target_link_libraries(goesrecv clock_recovery)
 target_link_libraries(goesrecv quantize)
 target_link_libraries(goesrecv nanomsg_source)
 target_link_libraries(goesrecv version)
+
 if(AIRSPY_FOUND)
   target_compile_definitions(goesrecv PUBLIC -DBUILD_AIRSPY)
   target_link_libraries(goesrecv airspy_source)
@@ -68,6 +77,10 @@ if(RTLSDR_FOUND)
   target_compile_definitions(goesrecv PUBLIC -DBUILD_RTLSDR)
   target_link_libraries(goesrecv rtlsdr_source)
 endif()
+if(HACKRF_FOUND)
+  target_compile_definitions(goesrecv PUBLIC -DBUILD_HACKRF)
+  target_link_libraries(goesrecv hackrf_source)
+endif()
 
 add_executable(benchmark benchmark.cc)
 target_link_libraries(benchmark pthread)

src/goesrecv/config.cc

@@ -1,11 +1,11 @@
 #include "config.h"
 
+#include <toml/toml.h>
+
 #include <iostream>
 #include <sstream>
 #include <stdexcept>
 
-#include <toml/toml.h>
-
 namespace {
 
 void throwInvalidKey(const std::string& key) {
@@ -24,7 +24,8 @@ void setIfZero(T& out, T value) {
 std::unique_ptr<SamplePublisher> createSamplePublisher(const toml::Value& v) {
   auto bind = v.find("bind");
   if (!bind) {
-    throw std::invalid_argument("Expected publisher section to have \"bind\" key");
+    throw std::invalid_argument(
+        "Expected publisher section to have \"bind\" key");
   }
 
   // Only need bind value to create publisher
@@ -42,7 +43,8 @@ std::unique_ptr<SamplePublisher> createSamplePublisher(const toml::Value& v) {
 std::unique_ptr<SoftBitPublisher> createSoftBitPublisher(const toml::Value& v) {
   auto bind = v.find("bind");
   if (!bind) {
-    throw std::invalid_argument("Expected publisher section to have \"bind\" key");
+    throw std::invalid_argument(
+        "Expected publisher section to have \"bind\" key");
   }
 
   // Only need bind value to create publisher
@@ -60,7 +62,8 @@ std::unique_ptr<SoftBitPublisher> createSoftBitPublisher(const toml::Value& v) {
 std::unique_ptr<PacketPublisher> createPacketPublisher(const toml::Value& v) {
   auto bind = v.find("bind");
   if (!bind) {
-    throw std::invalid_argument("Expected publisher section to have \"bind\" key");
+    throw std::invalid_argument(
+        "Expected publisher section to have \"bind\" key");
   }
 
   // Only need bind value to create publisher
@@ -78,7 +81,8 @@ std::unique_ptr<PacketPublisher> createPacketPublisher(const toml::Value& v) {
 Config::StatsPublisher createStatsPublisher(const toml::Value& v) {
   auto bind = v.find("bind");
   if (!bind) {
-    throw std::invalid_argument("Expected publisher section to have \"bind\" key");
+    throw std::invalid_argument(
+        "Expected publisher section to have \"bind\" key");
   }
 
   Config::StatsPublisher out;
@@ -198,6 +202,51 @@ void loadRTLSDRSource(Config::RTLSDR& out, const toml::Value& v) {
   }
 }
 
+void loadHackRfSource(Config::HackRf& out, const toml::Value& v) {
+  const auto& table = v.as<toml::Table>();
+  for (const auto& it : table) {
+    const auto& key = it.first;
+    const auto& value = it.second;
+
+    if (key == "frequency") {
+      out.frequency = value.as<int>();
+      continue;
+    }
+
+    if (key == "sample_rate") {
+      out.sampleRate = value.as<int>();
+      continue;
+    }
+
+    if (key == "if_gain") {
+      out.if_gain = value.as<int>();
+      continue;
+    }
+
+    if (key == "bb_gain") {
+      out.bb_gain = value.as<int>();
+      continue;
+    }
+
+    if (key == "rf_amp_enabled") {
+      out.rf_amp_enabled = value.as<bool>();
+      continue;
+    }
+
+    if (key == "sample_publisher") {
+      out.samplePublisher = createSamplePublisher(value);
+      continue;
+    }
+
+    if (key == "bias_tee") {
+      out.bias_tee = value.as<bool>();
+      continue;
+    }
+
+    throwInvalidKey(key);
+  }
+}
+
 void loadNanomsgSource(Config::Nanomsg& out, const toml::Value& v) {
   const auto& table = v.as<toml::Table>();
   for (const auto& it : table) {
@@ -241,12 +290,12 @@ void loadAGC(Config::AGC& out, const toml::Value& v) {
     const auto& value = it.second;
 
     if (key == "min") {
-      out.min = (float) value.as<double>();
+      out.min = (float)value.as<double>();
       continue;
     }
 
     if (key == "max") {
-      out.max = (float) value.as<double>();
+      out.max = (float)value.as<double>();
       continue;
     }
 
@@ -266,7 +315,7 @@ void loadCostas(Config::Costas& out, const toml::Value& v) {
     const auto& value = it.second;
 
     if (key == "max_deviation") {
-      out.maxDeviation = (int) value.as<double>();
+      out.maxDeviation = (int)value.as<double>();
       if (out.maxDeviation <= 0) {
         throw std::invalid_argument("Expected 'max_deviation' to be positive");
       }
@@ -362,7 +411,7 @@ void loadMonitor(Config::Monitor& out, const toml::Value& v) {
   }
 }
 
-} // namespace
+}  // namespace
 
 Config Config::load(const std::string& file) {
   Config out;
@@ -392,6 +441,11 @@ Config Config::load(const std::string& file) {
       continue;
     }
 
+    if (key == "hackrf") {
+      loadHackRfSource(out.hackrf, value);
+      continue;
+    }
+
     if (key == "nanomsg") {
       loadNanomsgSource(out.nanomsg, value);
       continue;
@@ -446,10 +500,12 @@ Config Config::load(const std::string& file) {
   if (out.demodulator.downlinkType == "lrit") {
     setIfZero(out.airspy.frequency, 1691000000u);
     setIfZero(out.rtlsdr.frequency, 1691000000u);
+    setIfZero(out.hackrf.frequency, 1691000000u);
   }
   if (out.demodulator.downlinkType == "hrit") {
     setIfZero(out.airspy.frequency, 1694100000u);
     setIfZero(out.rtlsdr.frequency, 1694100000u);
+    setIfZero(out.hackrf.frequency, 1694100000u);
   }
 
   return out;

src/goesrecv/config.h

@@ -44,10 +44,30 @@ struct Config {
     bool bias_tee = 0;
 
     std::unique_ptr<SamplePublisher> samplePublisher;
- };
+  };
 
   Airspy airspy;
 
+  struct HackRf {
+    uint32_t frequency = 0;
+    uint32_t sampleRate = 0;
+
+    // Applies to the tuner IF gain setting
+    uint8_t if_gain = 8;
+
+    // Applies to the tuner BB gain setting
+    uint8_t bb_gain = 30;
+
+    // Enables or disables the RF amplifier
+    bool rf_amp_enabled = 0;
+
+    bool bias_tee = 0;
+
+    std::unique_ptr<SamplePublisher> samplePublisher;
+  };
+
+  HackRf hackrf;
+
   struct RTLSDR {
     uint32_t frequency = 0;
     uint32_t sampleRate = 0;