Remove disabled OsmoSDR and MiriSDR code

OsmoSDR and MiriSDR support was disabled in v0.2.1 because the hardware
is rare and obsolete. I think it would be useful to completely remove
the associated code, since this will reduce the future maintenance
burden for gr-osmosdr.

Signed-off-by: Eric Wild <ewild@sysmocom.de>

15 files changed, 0 insertions, 1463 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9f8f0af..c23cb49 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -170,9 +170,7 @@ message (STATUS " Found Volk: ${Volk_FOUND}")
     # Hardware drivers
     ####################
 
-#find_package(LibOsmoSDR)
 find_package(LibRTLSDR)
-#find_package(LibMiriSDR)
 if(ENABLE_NONFREE)
     find_package(LibSDRplay)
 endif(ENABLE_NONFREE)
diff --git a/README b/README
index 67fa475..842c154 100644
--- a/README
+++ b/README
@@ -3,10 +3,8 @@ as well supports:
 
  * FUNcube Dongle through libgnuradio-fcd
  * FUNcube Dongle Pro+ through gr-fcdproplus
- * sysmocom OsmoSDR Devices through libosmosdr
  * RTL2832U based DVB-T dongles through librtlsdr
  * RTL-TCP spectrum server (see librtlsdr project)
- * MSi2500 based DVB-T dongles through libmirisdr
  * SDRplay RSP through SDRplay API library
  * gnuradio .cfile input through libgnuradio-blocks
  * RFSPACE SDR-IQ, SDR-IP, NetSDR (incl. X2 option)
diff --git a/cmake/Modules/FindLibMiriSDR.cmake b/cmake/Modules/FindLibMiriSDR.cmake
deleted file mode 100644
index cdb673f..0000000
--- a/cmake/Modules/FindLibMiriSDR.cmake
+++ /dev/null
@@ -1,27 +0,0 @@
-if(NOT LIBMIRISDR_FOUND)
-  pkg_check_modules (LIBMIRISDR_PKG libmirisdr)
-  find_path(LIBMIRISDR_INCLUDE_DIRS NAMES mirisdr.h
-    PATHS
-    ${LIBMIRISDR_PKG_INCLUDE_DIRS}
-    /usr/include
-    /usr/local/include
-  )
-
-  find_library(LIBMIRISDR_LIBRARIES NAMES mirisdr
-    PATHS
-    ${LIBMIRISDR_PKG_LIBRARY_DIRS}
-    /usr/lib
-    /usr/local/lib
-  )
-
-if(LIBMIRISDR_INCLUDE_DIRS AND LIBMIRISDR_LIBRARIES)
-  set(LIBMIRISDR_FOUND TRUE CACHE INTERNAL "libmirisdr found")
-  message(STATUS "Found libmirisdr: ${LIBMIRISDR_INCLUDE_DIRS}, ${LIBMIRISDR_LIBRARIES}")
-else(LIBMIRISDR_INCLUDE_DIRS AND LIBMIRISDR_LIBRARIES)
-  set(LIBMIRISDR_FOUND FALSE CACHE INTERNAL "libmirisdr found")
-  message(STATUS "libmirisdr not found.")
-endif(LIBMIRISDR_INCLUDE_DIRS AND LIBMIRISDR_LIBRARIES)
-
-mark_as_advanced(LIBMIRISDR_LIBRARIES LIBMIRISDR_INCLUDE_DIRS)
-
-endif(NOT LIBMIRISDR_FOUND)
diff --git a/cmake/Modules/FindLibOsmoSDR.cmake b/cmake/Modules/FindLibOsmoSDR.cmake
deleted file mode 100644
index a772e68..0000000
--- a/cmake/Modules/FindLibOsmoSDR.cmake
+++ /dev/null
@@ -1,27 +0,0 @@
-if(NOT LIBOSMOSDR_FOUND)
-  pkg_check_modules (LIBOSMOSDR_PKG libosmosdr)
-  find_path(LIBOSMOSDR_INCLUDE_DIRS NAMES osmosdr.h
-    PATHS
-    ${LIBOSMOSDR_PKG_INCLUDE_DIRS}
-    /usr/include
-    /usr/local/include
-  )
-
-  find_library(LIBOSMOSDR_LIBRARIES NAMES osmosdr
-    PATHS
-    ${LIBOSMOSDR_PKG_LIBRARY_DIRS}
-    /usr/lib
-    /usr/local/lib
-  )
-
-if(LIBOSMOSDR_INCLUDE_DIRS AND LIBOSMOSDR_LIBRARIES)
-  set(LIBOSMOSDR_FOUND TRUE CACHE INTERNAL "libosmosdr found")
-  message(STATUS "Found libosmosdr: ${LIBOSMOSDR_INCLUDE_DIRS}, ${LIBOSMOSDR_LIBRARIES}")
-else(LIBOSMOSDR_INCLUDE_DIRS AND LIBOSMOSDR_LIBRARIES)
-  set(LIBOSMOSDR_FOUND FALSE CACHE INTERNAL "libosmosdr found")
-  message(STATUS "libosmosdr not found.")
-endif(LIBOSMOSDR_INCLUDE_DIRS AND LIBOSMOSDR_LIBRARIES)
-
-mark_as_advanced(LIBOSMOSDR_LIBRARIES LIBOSMOSDR_INCLUDE_DIRS)
-
-endif(NOT LIBOSMOSDR_FOUND)
diff --git a/grc/gen_osmosdr_blocks.py b/grc/gen_osmosdr_blocks.py
index bfe81f2..45bac1f 100644
--- a/grc/gen_osmosdr_blocks.py
+++ b/grc/gen_osmosdr_blocks.py
@@ -157,10 +157,8 @@ documentation: |-
   While primarily being developed for the OsmoSDR hardware, this block as well supports:
 
   % if sourk == 'source':
-   * sysmocom OsmoSDR Devices through libosmosdr
    * RTL2832U based DVB-T dongles through librtlsdr
    * RTL-TCP spectrum server (see librtlsdr project)
-   * MSi2500 based DVB-T dongles through libmirisdr
    * SDRplay RSP devices through SDRplay library
    * gnuradio .cfile input through libgnuradio-blocks
    * RFSPACE SDR-IQ, SDR-IP, NetSDR (incl. X2 option)
@@ -192,13 +190,11 @@ documentation: |-
   Lines ending with ... mean it's possible to bind devices together by specifying multiple device arguments separated with a space.
 
   % if sourk == 'source':
-    miri=0[,buffers=32] ...
     rtl=serial_number ...
     rtl=0[,rtl_xtal=28.8e6][,tuner_xtal=28.8e6] ...
     rtl=1[,buffers=32][,buflen=N*512] ...
     rtl=2[,direct_samp=0|1|2][,offset_tune=0|1][,bias=0|1] ...
     rtl_tcp=127.0.0.1:1234[,psize=16384][,direct_samp=0|1|2][,offset_tune=0|1][,bias=0|1] ...
-    osmosdr=0[,buffers=32][,buflen=N*512] ...
     file='/path/to/your file',rate=1e6[,freq=100e6][,repeat=true][,throttle=true] ...
     netsdr=127.0.0.1[:50000][,nchan=2]
     sdr-ip=127.0.0.1[:50000]
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index f699c0d..bf974d8 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -136,14 +136,6 @@ if(ENABLE_IQBALANCE)
 endif(ENABLE_IQBALANCE)
 
 ########################################################################
-# Setup OsmoSDR component
-########################################################################
-#GR_REGISTER_COMPONENT("sysmocom OsmoSDR" ENABLE_OSMOSDR LIBOSMOSDR_FOUND)
-#if(ENABLE_OSMOSDR)
-#    add_subdirectory(osmosdr)
-#endif(ENABLE_OSMOSDR)
-
-########################################################################
 # Setup FCD component
 ########################################################################
 GR_REGISTER_COMPONENT("FUNcube Dongle" ENABLE_FCD GNURADIO_FCDPP_FOUND)
@@ -184,14 +176,6 @@ if(ENABLE_UHD)
 endif(ENABLE_UHD)
 
 ########################################################################
-# Setup MiriSDR component
-########################################################################
-#GR_REGISTER_COMPONENT("Osmocom MiriSDR" ENABLE_MIRI LIBMIRISDR_FOUND)
-#if(ENABLE_MIRI)
-#    add_subdirectory(miri)
-#endif(ENABLE_MIRI)
-
-########################################################################
 # Setup SDRplay component
 ########################################################################
 if(ENABLE_NONFREE)
diff --git a/lib/config.h.in b/lib/config.h.in
index 5303d7d..cce87e6 100644
--- a/lib/config.h.in
+++ b/lib/config.h.in
@@ -4,13 +4,11 @@
 #define GR_OSMOSDR_VERSION "@VERSION@"
 #define GR_OSMOSDR_LIBVER "@LIBVER@"
 
-#cmakedefine ENABLE_OSMOSDR
 #cmakedefine ENABLE_FCD
 #cmakedefine ENABLE_FILE
 #cmakedefine ENABLE_RTL
 #cmakedefine ENABLE_RTL_TCP
 #cmakedefine ENABLE_UHD
-#cmakedefine ENABLE_MIRI
 #cmakedefine ENABLE_SDRPLAY
 #cmakedefine ENABLE_HACKRF
 #cmakedefine ENABLE_BLADERF
diff --git a/lib/device.cc b/lib/device.cc
index 17efde9..d072e27 100644
--- a/lib/device.cc
+++ b/lib/device.cc
@@ -29,10 +29,6 @@
 #include "config.h"
 #endif
 
-#ifdef ENABLE_OSMOSDR
-#include <osmosdr_src_c.h>
-#endif
-
 #ifdef ENABLE_FCD
 #include <fcd_source_c.h>
 #endif
@@ -53,10 +49,6 @@
 #include <uhd_source_c.h>
 #endif
 
-#ifdef ENABLE_MIRI
-#include <miri_source_c.h>
-#endif
-
 #ifdef ENABLE_SDRPLAY
 #include <sdrplay_source_c.h>
 #endif
@@ -149,10 +141,6 @@ devices_t device::find(const device_t &hint)
 
   devices_t devices;
 
-#ifdef ENABLE_OSMOSDR
-  for (std::string dev : osmosdr_src_c::get_devices())
-    devices.push_back( device_t(dev) );
-#endif
 #ifdef ENABLE_FCD
   for (std::string dev : fcd_source_c::get_devices())
     devices.push_back( device_t(dev) );
@@ -165,10 +153,6 @@ devices_t device::find(const device_t &hint)
   for (std::string dev : uhd_source_c::get_devices())
     devices.push_back( device_t(dev) );
 #endif
-#ifdef ENABLE_MIRI
-  for (std::string dev : miri_source_c::get_devices())
-    devices.push_back( device_t(dev) );
-#endif
 #ifdef ENABLE_SDRPLAY
   for (std::string dev : sdrplay_source_c::get_devices())
     devices.push_back( device_t(dev) );
diff --git a/lib/miri/CMakeLists.txt b/lib/miri/CMakeLists.txt
deleted file mode 100644
index 672fc90..0000000
--- a/lib/miri/CMakeLists.txt
+++ /dev/null
@@ -1,36 +0,0 @@
-# Copyright 2012 Free Software Foundation, Inc.
-#
-# This file is part of gr-osmosdr
-#
-# gr-osmosdr is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# gr-osmosdr is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with gr-osmosdr; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-
-########################################################################
-# This file included, use CMake directory variables
-########################################################################
-
-target_include_directories(gnuradio-osmosdr PRIVATE
-    ${CMAKE_CURRENT_SOURCE_DIR}
-    ${LIBMIRISDR_INCLUDE_DIRS}
-)
-
-APPEND_LIB_LIST(
-    ${LIBMIRISDR_LIBRARIES}
-)
-
-list(APPEND gr_osmosdr_srcs
-    ${CMAKE_CURRENT_SOURCE_DIR}/miri_source_c.cc
-)
-set(gr_osmosdr_srcs ${gr_osmosdr_srcs} PARENT_SCOPE)
diff --git a/lib/miri/miri_source_c.cc b/lib/miri/miri_source_c.cc
deleted file mode 100644
index c1b9428..0000000
--- a/lib/miri/miri_source_c.cc
+++ /dev/null
@@ -1,451 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2012 Dimitri Stolnikov <horiz0n@gmx.net>
- * Copyright 2012 Steve Markgraf <steve@steve-m.de>
- *
- * GNU Radio is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3, or (at your option)
- * any later version.
- *
- * GNU Radio is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GNU Radio; see the file COPYING.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street,
- * Boston, MA 02110-1301, USA.
- */
-
-/*
- * config.h is generated by configure.  It contains the results
- * of probing for features, options etc.  It should be the first
- * file included in your .cc file.
- */
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "miri_source_c.h"
-#include <gnuradio/io_signature.h>
-
-#include <boost/assign.hpp>
-#include <boost/format.hpp>
-
-#include <stdexcept>
-#include <iostream>
-#include <stdio.h>
-
-#include <mirisdr.h>
-
-#include "arg_helpers.h"
-
-using namespace boost::assign;
-
-#define BUF_SIZE  2304 * 8 * 2
-#define BUF_NUM   15
-#define BUF_SKIP  1 // buffers to skip due to garbage
-
-#define BYTES_PER_SAMPLE  4 // mirisdr device delivers 16 bit signed IQ data
-                            // containing 12 bits of information
-
-/*
- * Create a new instance of miri_source_c and return
- * a boost shared_ptr.  This is effectively the public constructor.
- */
-miri_source_c_sptr
-make_miri_source_c (const std::string &args)
-{
-  return gnuradio::get_initial_sptr(new miri_source_c (args));
-}
-
-/*
- * Specify constraints on number of input and output streams.
- * This info is used to construct the input and output signatures
- * (2nd & 3rd args to gr::block's constructor).  The input and
- * output signatures are used by the runtime system to
- * check that a valid number and type of inputs and outputs
- * are connected to this block.  In this case, we accept
- * only 0 input and 1 output.
- */
-static const int MIN_IN = 0;	// mininum number of input streams
-static const int MAX_IN = 0;	// maximum number of input streams
-static const int MIN_OUT = 1;	// minimum number of output streams
-static const int MAX_OUT = 1;	// maximum number of output streams
-
-/*
- * The private constructor
- */
-miri_source_c::miri_source_c (const std::string &args)
-  : gr::sync_block ("miri_source_c",
-        gr::io_signature::make(MIN_IN, MAX_IN, sizeof (gr_complex)),
-        gr::io_signature::make(MIN_OUT, MAX_OUT, sizeof (gr_complex))),
-    _running(true),
-    _auto_gain(false),
-    _skipped(0)
-{
-  int ret;
-  unsigned int dev_index = 0;
-
-  dict_t dict = params_to_dict(args);
-
-  if (dict.count("miri"))
-    dev_index = boost::lexical_cast< unsigned int >( dict["miri"] );
-
-  _buf_num = _buf_head = _buf_used = _buf_offset = 0;
-  _samp_avail = BUF_SIZE / BYTES_PER_SAMPLE;
-
-  if (dict.count("buffers"))
-    _buf_num = boost::lexical_cast< unsigned int >( dict["buffers"] );
-
-  if (0 == _buf_num)
-    _buf_num = BUF_NUM;
-
-  if ( BUF_NUM != _buf_num ) {
-    std::cerr << "Using " << _buf_num << " buffers of size " << BUF_SIZE << "."
-              << std::endl;
-  }
-
-  if ( dev_index >= mirisdr_get_device_count() )
-    throw std::runtime_error("Wrong mirisdr device index given.");
-
-  std::cerr << "Using device #" << dev_index << ": "
-            << mirisdr_get_device_name(dev_index)
-            << std::endl;
-
-  _dev = NULL;
-  ret = mirisdr_open( &_dev, dev_index );
-  if (ret < 0)
-    throw std::runtime_error("Failed to open mirisdr device.");
-#if 0
-  ret = mirisdr_set_sample_rate( _dev, 500000 );
-  if (ret < 0)
-    throw std::runtime_error("Failed to set default samplerate.");
-
-  ret = mirisdr_set_tuner_gain_mode(_dev, int(!_auto_gain));
-  if (ret < 0)
-    throw std::runtime_error("Failed to enable manual gain mode.");
-#endif
-  ret = mirisdr_reset_buffer( _dev );
-  if (ret < 0)
-    throw std::runtime_error("Failed to reset usb buffers.");
-
-  _buf = (unsigned short **) malloc(_buf_num * sizeof(unsigned short *));
-  _buf_lens = (unsigned int *) malloc(_buf_num * sizeof(unsigned int));
-
-  if (_buf && _buf_lens) {
-    for(unsigned int i = 0; i < _buf_num; ++i)
-      _buf[i] = (unsigned short *) malloc(BUF_SIZE);
-  }
-
-  _thread = gr::thread::thread(_mirisdr_wait, this);
-}
-
-/*
- * Our virtual destructor.
- */
-miri_source_c::~miri_source_c ()
-{
-  if (_dev) {
-    _running = false;
-    mirisdr_cancel_async( _dev );
-    _thread.join();
-    mirisdr_close( _dev );
-    _dev = NULL;
-  }
-
-  if (_buf) {
-    for(unsigned int i = 0; i < _buf_num; ++i) {
-      free(_buf[i]);
-    }
-
-    free(_buf);
-    _buf = NULL;
-    free(_buf_lens);
-    _buf_lens = NULL;
-  }
-}
-
-void miri_source_c::_mirisdr_callback(unsigned char *buf, uint32_t len, void *ctx)
-{
-  miri_source_c *obj = (miri_source_c *)ctx;
-  obj->mirisdr_callback(buf, len);
-}
-
-void miri_source_c::mirisdr_callback(unsigned char *buf, uint32_t len)
-{
-  if (_skipped < BUF_SKIP) {
-    _skipped++;
-    return;
-  }
-
-  {
-    std::lock_guard<std::mutex> lock( _buf_mutex );
-
-    if (len > BUF_SIZE)
-      throw std::runtime_error("Buffer too small.");
-
-    int buf_tail = (_buf_head + _buf_used) % _buf_num;
-    memcpy(_buf[buf_tail], buf, len);
-    _buf_lens[buf_tail] = len;
-
-    if (_buf_used == _buf_num) {
-      std::cerr << "O" << std::flush;
-      _buf_head = (_buf_head + 1) % _buf_num;
-    } else {
-      _buf_used++;
-    }
-  }
-
-  _buf_cond.notify_one();
-}
-
-void miri_source_c::_mirisdr_wait(miri_source_c *obj)
-{
-  obj->mirisdr_wait();
-}
-
-void miri_source_c::mirisdr_wait()
-{
-  int ret = mirisdr_read_async( _dev, _mirisdr_callback, (void *)this, _buf_num, BUF_SIZE );
-
-  _running = false;
-
-  if ( ret != 0 )
-    std::cerr << "mirisdr_read_async returned with " << ret << std::endl;
-
-  _buf_cond.notify_one();
-}
-
-int miri_source_c::work( int noutput_items,
-                        gr_vector_const_void_star &input_items,
-                        gr_vector_void_star &output_items )
-{
-  gr_complex *out = (gr_complex *)output_items[0];
-
-  {
-    std::unique_lock<std::mutex> lock( _buf_mutex );
-
-    while (_buf_used < 3 && _running) // collect at least 3 buffers
-      _buf_cond.wait( lock );
-  }
-
-  if (!_running)
-    return WORK_DONE;
-
-  short *buf = (short *)_buf[_buf_head] + _buf_offset;
-
-  if (noutput_items <= _samp_avail) {
-    for (int i = 0; i < noutput_items; i++)
-      *out++ = gr_complex( float(*(buf + i * 2 + 0)) * (1.0f/4096.0f),
-                           float(*(buf + i * 2 + 1)) * (1.0f/4096.0f) );
-
-    _buf_offset += noutput_items * 2;
-    _samp_avail -= noutput_items;
-  } else {
-    for (int i = 0; i < _samp_avail; i++)
-      *out++ = gr_complex( float(*(buf + i * 2 + 0)) * (1.0f/4096.0f),
-                           float(*(buf + i * 2 + 1)) * (1.0f/4096.0f) );
-
-    {
-      std::lock_guard<std::mutex> lock( _buf_mutex );
-
-      _buf_head = (_buf_head + 1) % _buf_num;
-      _buf_used--;
-    }
-
-    buf = (short *)_buf[_buf_head];
-
-    int remaining = noutput_items - _samp_avail;
-
-    for (int i = 0; i < remaining; i++)
-      *out++ = gr_complex( float(*(buf + i * 2 + 0)) * (1.0f/4096.0f),
-                           float(*(buf + i * 2 + 1)) * (1.0f/4096.0f) );
-
-    _buf_offset = remaining * 2;
-    _samp_avail = (_buf_lens[_buf_head] / BYTES_PER_SAMPLE) - remaining;
-  }
-
-  return noutput_items;
-}
-
-std::vector<std::string> miri_source_c::get_devices()
-{
-  std::vector<std::string> devices;
-
-  for (unsigned int i = 0; i < mirisdr_get_device_count(); i++) {
-    std::string args = "miri=" + boost::lexical_cast< std::string >( i );
-    args += ",label='" + std::string(mirisdr_get_device_name( i )) + "'";
-    devices.push_back( args );
-  }
-
-  return devices;
-}
-
-size_t miri_source_c::get_num_channels()
-{
-  return 1;
-}
-
-osmosdr::meta_range_t miri_source_c::get_sample_rates()
-{
-  osmosdr::meta_range_t range;
-
-  range += osmosdr::range_t( 8000000 ); // known to work
-
-  return range;
-}
-
-double miri_source_c::set_sample_rate(double rate)
-{
-  if (_dev) {
-    mirisdr_set_sample_rate( _dev, (uint32_t)rate );
-  }
-
-  return get_sample_rate();
-}
-
-double miri_source_c::get_sample_rate()
-{
-  if (_dev)
-    return (double)mirisdr_get_sample_rate( _dev );
-
-  return 0;
-}
-
-osmosdr::freq_range_t miri_source_c::get_freq_range( size_t chan )
-{
-  osmosdr::freq_range_t range;
-
-  range += osmosdr::range_t( 150e3, 30e6 ); /* LW/MW/SW (150 kHz - 30 MHz) */
-  range += osmosdr::range_t( 64e6, 108e6 ); /* VHF Band II (64 - 108 MHz) */
-  range += osmosdr::range_t( 162e6, 240e6 ); /* Band III (162 - 240 MHz) */
-  range += osmosdr::range_t( 470e6, 960e6 ); /* Band IV/V (470 - 960 MHz) */
-  range += osmosdr::range_t( 1450e6, 1675e6 ); /* L-Band (1450 - 1675 MHz) */
-
-  return range;
-}
-
-double miri_source_c::set_center_freq( double freq, size_t chan )
-{
-  if (_dev)
-    mirisdr_set_center_freq( _dev, (uint32_t)freq );
-
-  return get_center_freq( chan );
-}
-
-double miri_source_c::get_center_freq( size_t chan )
-{
-  if (_dev)
-    return (double)mirisdr_get_center_freq( _dev );
-
-  return 0;
-}
-
-double miri_source_c::set_freq_corr( double ppm, size_t chan )
-{
-  return get_freq_corr( chan );
-}
-
-double miri_source_c::get_freq_corr( size_t chan )
-{
-  return 0;
-}
-
-std::vector<std::string> miri_source_c::get_gain_names( size_t chan )
-{
-  std::vector< std::string > gains;
-
-  gains += "LNA";
-
-  return gains;
-}
-
-osmosdr::gain_range_t miri_source_c::get_gain_range( size_t chan )
-{
-  osmosdr::gain_range_t range;
-
-  if (_dev) {
-    int count = mirisdr_get_tuner_gains(_dev, NULL);
-    if (count > 0) {
-      int* gains = new int[ count ];
-      count = mirisdr_get_tuner_gains(_dev, gains);
-      for (int i = 0; i < count; i++)
-        range += osmosdr::range_t( gains[i] / 10.0 );
-      delete[] gains;
-    }
-  }
-
-  return range;
-}
-
-osmosdr::gain_range_t miri_source_c::get_gain_range( const std::string & name, size_t chan )
-{
-  return get_gain_range( chan );
-}
-
-bool miri_source_c::set_gain_mode( bool automatic, size_t chan )
-{
-  if (_dev) {
-    if (!mirisdr_set_tuner_gain_mode(_dev, int(!automatic))) {
-      _auto_gain = automatic;
-    }
-  }
-
-  return get_gain_mode(chan);
-}
-
-bool miri_source_c::get_gain_mode( size_t chan )
-{
-  return _auto_gain;
-}
-
-double miri_source_c::set_gain( double gain, size_t chan )
-{
-  osmosdr::gain_range_t rf_gains = miri_source_c::get_gain_range( chan );
-
-  if (_dev) {
-    mirisdr_set_tuner_gain( _dev, int(rf_gains.clip(gain) * 10.0) );
-  }
-
-  return get_gain( chan );
-}
-
-double miri_source_c::set_gain( double gain, const std::string & name, size_t chan)
-{
-  return set_gain( gain, chan );
-}
-
-double miri_source_c::get_gain( size_t chan )
-{
-  if ( _dev )
-    return ((double)mirisdr_get_tuner_gain( _dev )) / 10.0;
-
-  return 0;
-}
-
-double miri_source_c::get_gain( const std::string & name, size_t chan )
-{
-  return get_gain( chan );
-}
-
-std::vector< std::string > miri_source_c::get_antennas( size_t chan )
-{
-  std::vector< std::string > antennas;
-
-  antennas += get_antenna( chan );
-
-  return antennas;
-}
-
-std::string miri_source_c::set_antenna( const std::string & antenna, size_t chan )
-{
-  return get_antenna( chan );
-}
-
-std::string miri_source_c::get_antenna( size_t chan )
-{
-  return "RX";
-}
diff --git a/lib/miri/miri_source_c.h b/lib/miri/miri_source_c.h
deleted file mode 100644
index 1ea906f..0000000
--- a/lib/miri/miri_source_c.h
+++ /dev/null
@@ -1,135 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2012 Dimitri Stolnikov <horiz0n@gmx.net>
- *
- * GNU Radio is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3, or (at your option)
- * any later version.
- *
- * GNU Radio is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GNU Radio; see the file COPYING.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street,
- * Boston, MA 02110-1301, USA.
- */
-#ifndef INCLUDED_MIRI_SOURCE_C_H
-#define INCLUDED_MIRI_SOURCE_C_H
-
-#include <gnuradio/sync_block.h>
-
-#include <gnuradio/thread/thread.h>
-
-#include <mutex>
-#include <condition_variable>
-
-#include "source_iface.h"
-
-class miri_source_c;
-typedef struct mirisdr_dev mirisdr_dev_t;
-
-/*
- * We use boost::shared_ptr's instead of raw pointers for all access
- * to gr::blocks (and many other data structures).  The shared_ptr gets
- * us transparent reference counting, which greatly simplifies storage
- * management issues.  This is especially helpful in our hybrid
- * C++ / Python system.
- *
- * See http://www.boost.org/libs/smart_ptr/smart_ptr.htm
- *
- * As a convention, the _sptr suffix indicates a boost::shared_ptr
- */
-typedef boost::shared_ptr<miri_source_c> miri_source_c_sptr;
-
-/*!
- * \brief Return a shared_ptr to a new instance of miri_source_c.
- *
- * To avoid accidental use of raw pointers, miri_source_c's
- * constructor is private.  make_miri_source_c is the public
- * interface for creating new instances.
- */
-miri_source_c_sptr make_miri_source_c (const std::string & args = "");
-
-/*!
- * \brief Provides a stream of complex samples.
- * \ingroup block
- */
-class miri_source_c :
-    public gr::sync_block,
-    public source_iface
-{
-private:
-  // The friend declaration allows make_miri_source_c to
-  // access the private constructor.
-
-  friend miri_source_c_sptr make_miri_source_c (const std::string & args);
-
-  /*!
-   * \brief Provides a stream of complex samples.
-   */
-  miri_source_c (const std::string & args);  	// private constructor
-
- public:
-  ~miri_source_c ();	// public destructor
-
-  int work( int noutput_items,
-            gr_vector_const_void_star &input_items,
-            gr_vector_void_star &output_items );
-
-  static std::vector< std::string > get_devices();
-
-  size_t get_num_channels( void );
-
-  osmosdr::meta_range_t get_sample_rates( void );
-  double set_sample_rate( double rate );
-  double get_sample_rate( void );
-
-  osmosdr::freq_range_t get_freq_range( size_t chan = 0 );
-  double set_center_freq( double freq, size_t chan = 0 );
-  double get_center_freq( size_t chan = 0 );
-  double set_freq_corr( double ppm, size_t chan = 0 );
-  double get_freq_corr( size_t chan = 0 );
-
-  std::vector<std::string> get_gain_names( size_t chan = 0 );
-  osmosdr::gain_range_t get_gain_range( size_t chan = 0 );
-  osmosdr::gain_range_t get_gain_range( const std::string & name, size_t chan = 0 );
-  bool set_gain_mode( bool automatic, size_t chan = 0 );
-  bool get_gain_mode( size_t chan = 0 );
-  double set_gain( double gain, size_t chan = 0 );
-  double set_gain( double gain, const std::string & name, size_t chan = 0 );
-  double get_gain( size_t chan = 0 );
-  double get_gain( const std::string & name, size_t chan = 0 );
-
-  std::vector< std::string > get_antennas( size_t chan = 0 );
-  std::string set_antenna( const std::string & antenna, size_t chan = 0 );
-  std::string get_antenna( size_t chan = 0 );
-
-private:
-  static void _mirisdr_callback(unsigned char *buf, uint32_t len, void *ctx);
-  void mirisdr_callback(unsigned char *buf, uint32_t len);
-  static void _mirisdr_wait(miri_source_c *obj);
-  void mirisdr_wait();
-
-  mirisdr_dev_t *_dev;
-  gr::thread::thread _thread;
-  unsigned short **_buf;
-  unsigned int *_buf_lens;
-  unsigned int _buf_num;
-  unsigned int _buf_head;
-  unsigned int _buf_used;
-  std::mutex _buf_mutex;
-  std::condition_variable _buf_cond;
-  bool _running;
-
-  unsigned int _buf_offset;
-  int _samp_avail;
-
-  bool _auto_gain;
-  unsigned int _skipped;
-};
-
-#endif /* INCLUDED_MIRI_SOURCE_C_H */
diff --git a/lib/osmosdr/CMakeLists.txt b/lib/osmosdr/CMakeLists.txt
deleted file mode 100644
index eb540e1..0000000
--- a/lib/osmosdr/CMakeLists.txt
+++ /dev/null
@@ -1,36 +0,0 @@
-# Copyright 2012 Free Software Foundation, Inc.
-#
-# This file is part of gr-osmosdr
-#
-# gr-osmosdr is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# gr-osmosdr is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with gr-osmosdr; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-
-########################################################################
-# This file included, use CMake directory variables
-########################################################################
-
-target_include_directories(gnuradio-osmosdr PRIVATE
-    ${CMAKE_CURRENT_SOURCE_DIR}
-    ${LIBOSMOSDR_INCLUDE_DIRS}
-)
-
-APPEND_LIB_LIST(
-    ${LIBOSMOSDR_LIBRARIES}
-)
-
-list(APPEND gr_osmosdr_srcs
-    ${CMAKE_CURRENT_SOURCE_DIR}/osmosdr_src_c.cc
-)
-set(gr_osmosdr_srcs ${gr_osmosdr_srcs} PARENT_SCOPE)
diff --git a/lib/osmosdr/osmosdr_src_c.cc b/lib/osmosdr/osmosdr_src_c.cc
deleted file mode 100644
index e4f8b89..0000000
--- a/lib/osmosdr/osmosdr_src_c.cc
+++ /dev/null
@@ -1,533 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2012 Dimitri Stolnikov <horiz0n@gmx.net>
- *
- * GNU Radio is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3, or (at your option)
- * any later version.
- *
- * GNU Radio is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GNU Radio; see the file COPYING.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street,
- * Boston, MA 02110-1301, USA.
- */
-
-/*
- * config.h is generated by configure.  It contains the results
- * of probing for features, options etc.  It should be the first
- * file included in your .cc file.
- */
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "osmosdr_src_c.h"
-#include <gnuradio/io_signature.h>
-
-#include <boost/assign.hpp>
-#include <boost/format.hpp>
-
-#include <stdexcept>
-#include <iostream>
-#include <stdio.h>
-
-#include <osmosdr.h>
-
-#include "arg_helpers.h"
-
-using namespace boost::assign;
-
-#define BUF_LEN  (16 * 32 * 512) /* must be multiple of 512 */
-#define BUF_NUM   15
-#define BUF_SKIP  1 // buffers to skip due to garbage
-
-#define BYTES_PER_SAMPLE  4 // osmosdr device delivers 16 bit signed IQ data
-
-/*
- * Create a new instance of osmosdr_src_c and return
- * a boost shared_ptr.  This is effectively the public constructor.
- */
-osmosdr_src_c_sptr
-osmosdr_make_src_c (const std::string &args)
-{
-  return gnuradio::get_initial_sptr(new osmosdr_src_c (args));
-}
-
-/*
- * The private constructor
- */
-osmosdr_src_c::osmosdr_src_c (const std::string &args)
-  : gr::sync_block ("osmosdr_src_c",
-        gr::io_signature::make(0, 0, sizeof (gr_complex)),
-        gr::io_signature::make(1, 1, sizeof (gr_complex)) ),
-    _dev(NULL),
-    _buf(NULL),
-    _running(true),
-    _auto_gain(false),
-    _if_gain(0),
-    _skipped(0)
-{
-  int ret;
-  unsigned int dev_index = 0;
-
-  dict_t dict = params_to_dict(args);
-
-  if (dict.count("osmosdr"))
-    dev_index = boost::lexical_cast< unsigned int >( dict["osmosdr"] );
-
-  _buf_num = _buf_len = _buf_head = _buf_used = _buf_offset = 0;
-
-  if (dict.count("buffers"))
-    _buf_num = boost::lexical_cast< unsigned int >( dict["buffers"] );
-
-  if (dict.count("buflen"))
-    _buf_len = boost::lexical_cast< unsigned int >( dict["buflen"] );
-
-  if (0 == _buf_num)
-    _buf_num = BUF_NUM;
-
-  if (0 == _buf_len || _buf_len % 512 != 0) /* len must be multiple of 512 */
-    _buf_len = BUF_LEN;
-
-  if ( BUF_NUM != _buf_num || BUF_LEN != _buf_len ) {
-    std::cerr << "Using " << _buf_num << " buffers of size " << _buf_len << "."
-              << std::endl;
-  }
-
-  _samp_avail = _buf_len / BYTES_PER_SAMPLE;
-
-  if ( dev_index >= osmosdr_get_device_count() )
-    throw std::runtime_error("Wrong osmosdr device index given.");
-
-  std::cerr << "Using device #" << dev_index << ": "
-            << osmosdr_get_device_name(dev_index)
-            << std::endl;
-
-  _dev = NULL;
-  ret = osmosdr_open( &_dev, dev_index );
-  if (ret < 0)
-    throw std::runtime_error("Failed to open osmosdr device.");
-
-  ret = osmosdr_set_fpga_iq_swap(_dev, 0);
-  if (ret < 0)
-    throw std::runtime_error("Failed to disable IQ swapping.");
-
-  ret = osmosdr_set_sample_rate( _dev, 500000 );
-  if (ret < 0)
-    throw std::runtime_error("Failed to set default samplerate.");
-
-  ret = osmosdr_set_tuner_gain_mode(_dev, int(!_auto_gain));
-  if (ret < 0)
-    throw std::runtime_error("Failed to enable manual gain mode.");
-
-  ret = osmosdr_reset_buffer( _dev );
-  if (ret < 0)
-    throw std::runtime_error("Failed to reset usb buffers.");
-
-  set_if_gain( 24 ); /* preset to a reasonable default (non-GRC use case) */
-
-  _buf = (unsigned short **) malloc(_buf_num * sizeof(unsigned short *));
-
-  if (_buf) {
-    for(unsigned int i = 0; i < _buf_num; ++i)
-      _buf[i] = (unsigned short *) malloc(_buf_len);
-  }
-
-  _thread = gr::thread::thread(_osmosdr_wait, this);
-}
-
-/*
- * Our virtual destructor.
- */
-osmosdr_src_c::~osmosdr_src_c ()
-{
-  if (_dev) {
-    _running = false;
-    osmosdr_cancel_async( _dev );
-    _thread.join();
-    osmosdr_close( _dev );
-    _dev = NULL;
-  }
-
-  if (_buf) {
-    for(unsigned int i = 0; i < _buf_num; ++i) {
-      free(_buf[i]);
-    }
-
-    free(_buf);
-    _buf = NULL;
-  }
-}
-
-void osmosdr_src_c::_osmosdr_callback(unsigned char *buf, uint32_t len, void *ctx)
-{
-  osmosdr_src_c *obj = (osmosdr_src_c *)ctx;
-  obj->osmosdr_callback(buf, len);
-}
-
-void osmosdr_src_c::osmosdr_callback(unsigned char *buf, uint32_t len)
-{
-  if (_skipped < BUF_SKIP) {
-    _skipped++;
-    return;
-  }
-
-  {
-    std::lock_guard<std::mutex> lock( _buf_mutex );
-
-    int buf_tail = (_buf_head + _buf_used) % _buf_num;
-    memcpy(_buf[buf_tail], buf, len);
-
-    if (_buf_used == _buf_num) {
-      std::cerr << "O" << std::flush;
-      _buf_head = (_buf_head + 1) % _buf_num;
-    } else {
-      _buf_used++;
-    }
-  }
-
-  _buf_cond.notify_one();
-}
-
-void osmosdr_src_c::_osmosdr_wait(osmosdr_src_c *obj)
-{
-  obj->osmosdr_wait();
-}
-
-void osmosdr_src_c::osmosdr_wait()
-{
-  int ret = osmosdr_read_async( _dev, _osmosdr_callback, (void *)this, _buf_num, _buf_len );
-
-  _running = false;
-
-  if ( ret != 0 )
-    std::cerr << "osmosdr_read_async returned with " << ret << std::endl;
-
-  _buf_cond.notify_one();
-}
-
-int osmosdr_src_c::work( int noutput_items,
-                        gr_vector_const_void_star &input_items,
-                        gr_vector_void_star &output_items )
-{
-  gr_complex *out = (gr_complex *)output_items[0];
-
-  {
-    std::unique_lock<std::mutex> lock( _buf_mutex );
-
-    while (_buf_used < 3 && _running) // collect at least 3 buffers
-      _buf_cond.wait( lock );
-  }
-
-  if (!_running)
-    return WORK_DONE;
-
-  short *buf = (short *)_buf[_buf_head] + _buf_offset;
-
-  if (noutput_items <= _samp_avail) {
-    for (int i = 0; i < noutput_items; i++)
-       *out++ = gr_complex( float(*(buf + i * 2 + 0)) * (1.0f/32767.5f),
-                            float(*(buf + i * 2 + 1)) * (1.0f/32767.5f) );
-
-    _buf_offset += noutput_items * 2;
-    _samp_avail -= noutput_items;
-  } else {
-    for (int i = 0; i < _samp_avail; i++)
-      *out++ = gr_complex( float(*(buf + i * 2 + 0)) * (1.0f/32767.5f),
-                           float(*(buf + i * 2 + 1)) * (1.0f/32767.5f) );
-
-    {
-      std::lock_guard<std::mutex> lock( _buf_mutex );
-
-      _buf_head = (_buf_head + 1) % _buf_num;
-      _buf_used--;
-    }
-
-    buf = (short *)_buf[_buf_head];
-
-    int remaining = noutput_items - _samp_avail;
-
-    for (int i = 0; i < remaining; i++)
-      *out++ = gr_complex( float(*(buf + i * 2 + 0)) * (1.0f/32767.5f),
-                           float(*(buf + i * 2 + 1)) * (1.0f/32767.5f) );
-
-    _buf_offset = remaining * 2;
-    _samp_avail = (_buf_len / BYTES_PER_SAMPLE) - remaining;
-  }
-
-  return noutput_items;
-}
-
-std::vector<std::string> osmosdr_src_c::get_devices()
-{
-  std::vector< std::string > devices;
-  char buffer[256];
-
-  for (unsigned int i = 0; i < osmosdr_get_device_count(); i++) {
-    std::string args = "osmosdr=" + boost::lexical_cast< std::string >( i );
-
-    std::string label = std::string(osmosdr_get_device_name( i ));
-
-    memset(buffer, 0, sizeof(buffer));
-    osmosdr_get_device_usb_strings( i, NULL, NULL, buffer );
-    std::string serial = std::string(buffer);
-
-    if (serial.length())
-      label += " " + serial;
-
-    args += ",label='" + label +  + "'";
-
-    devices.push_back( args );
-  }
-
-  return devices;
-}
-
-size_t osmosdr_src_c::get_num_channels()
-{
-  return 1;
-}
-
-osmosdr::meta_range_t osmosdr_src_c::get_sample_rates()
-{
-  osmosdr::meta_range_t range;
-
-  if (_dev) {
-    int count = osmosdr_get_sample_rates(_dev, NULL);
-    if (count > 0) {
-      uint32_t* rates = new uint32_t[ count ];
-      count = osmosdr_get_sample_rates(_dev, rates);
-      for (int i = 0; i < count; i++)
-        range += osmosdr::range_t( rates[i] );
-      delete[] rates;
-    }
-  }
-
-  return range;
-}
-
-double osmosdr_src_c::set_sample_rate(double rate)
-{
-  if (_dev) {
-    osmosdr_set_sample_rate( _dev, (uint32_t)rate );
-  }
-
-  return get_sample_rate();
-}
-
-double osmosdr_src_c::get_sample_rate()
-{
-  if (_dev)
-    return (double)osmosdr_get_sample_rate( _dev );
-
-  return 0;
-}
-
-osmosdr::freq_range_t osmosdr_src_c::get_freq_range( size_t chan )
-{
-  osmosdr::freq_range_t range;
-
-  /* there is a (temperature dependent) gap between 1100 to 1250 MHz */
-  range += osmosdr::range_t( 52e6, 2.2e9 );
-
-  return range;
-}
-
-double osmosdr_src_c::set_center_freq( double freq, size_t chan )
-{
-  if (_dev)
-    osmosdr_set_center_freq( _dev, (uint32_t)freq );
-
-  return get_center_freq( chan );
-}
-
-double osmosdr_src_c::get_center_freq( size_t chan )
-{
-  if (_dev)
-    return (double)osmosdr_get_center_freq( _dev );
-
-  return 0;
-}
-
-double osmosdr_src_c::set_freq_corr( double ppm, size_t chan )
-{
-  return get_freq_corr( chan );
-}
-
-double osmosdr_src_c::get_freq_corr( size_t chan )
-{
-  return 0;
-}
-
-std::vector<std::string> osmosdr_src_c::get_gain_names( size_t chan )
-{
-  std::vector< std::string > names;
-
-  names += "LNA";
-  names += "IF";
-
-  return names;
-}
-
-osmosdr::gain_range_t osmosdr_src_c::get_gain_range( size_t chan )
-{
-  osmosdr::gain_range_t range;
-
-  if (_dev) {
-    int count = osmosdr_get_tuner_gains(_dev, NULL);
-    if (count > 0) {
-      int* gains = new int[ count ];
-      count = osmosdr_get_tuner_gains(_dev, gains);
-      for (int i = 0; i < count; i++)
-        range += osmosdr::range_t( gains[i] / 10.0 );
-      delete[] gains;
-    }
-  }
-
-  return range;
-}
-
-osmosdr::gain_range_t osmosdr_src_c::get_gain_range( const std::string & name, size_t chan )
-{
-  if ( "IF" == name ) {
-    return osmosdr::gain_range_t(3, 56, 1);
-  }
-
-  return get_gain_range( chan );
-}
-
-bool osmosdr_src_c::set_gain_mode( bool automatic, size_t chan )
-{
-  if (_dev) {
-    if (!osmosdr_set_tuner_gain_mode(_dev, int(!automatic))) {
-      _auto_gain = automatic;
-    }
-  }
-
-  return get_gain_mode(chan);
-}
-
-bool osmosdr_src_c::get_gain_mode( size_t chan )
-{
-  return _auto_gain;
-}
-
-double osmosdr_src_c::set_gain( double gain, size_t chan )
-{
-  osmosdr::gain_range_t rf_gains = osmosdr_src_c::get_gain_range( chan );
-
-  if (_dev) {
-    osmosdr_set_tuner_gain( _dev, int(rf_gains.clip(gain) * 10.0) );
-  }
-
-  return get_gain( chan );
-}
-
-double osmosdr_src_c::set_gain( double gain, const std::string & name, size_t chan)
-{
-  if ( "IF" == name ) {
-    return set_if_gain( gain, chan );
-  }
-
-  return set_gain( gain, chan );
-}
-
-double osmosdr_src_c::get_gain( size_t chan )
-{
-  if ( _dev )
-    return ((double)osmosdr_get_tuner_gain( _dev )) / 10.0;
-
-  return 0;
-}
-
-double osmosdr_src_c::get_gain( const std::string & name, size_t chan )
-{
-  if ( "IF" == name ) {
-    return _if_gain;
-  }
-
-  return get_gain( chan );
-}
-
-double osmosdr_src_c::set_if_gain(double gain, size_t chan)
-{
-  std::vector< osmosdr::gain_range_t > if_gains;
-
-  if_gains += osmosdr::gain_range_t(-3, 6, 9);
-  if_gains += osmosdr::gain_range_t(0, 9, 3);
-  if_gains += osmosdr::gain_range_t(0, 9, 3);
-  if_gains += osmosdr::gain_range_t(0, 2, 1);
-  if_gains += osmosdr::gain_range_t(3, 15, 3);
-  if_gains += osmosdr::gain_range_t(3, 15, 3);
-
-  std::map< int, double > gains;
-
-  /* initialize with min gains */
-  for (unsigned int i = 0; i < if_gains.size(); i++) {
-    gains[ i + 1 ] = if_gains[ i ].start();
-  }
-
-  for (int i = if_gains.size() - 1; i >= 0; i--) {
-    osmosdr::gain_range_t range = if_gains[ i ];
-
-    double error = gain;
-
-    for( double g = range.start(); g <= range.stop(); g += range.step() ) {
-
-      double sum = 0;
-      for (int j = 0; j < int(gains.size()); j++) {
-        if ( i == j )
-          sum += g;
-        else
-          sum += gains[ j + 1 ];
-      }
-
-      double err = abs(gain - sum);
-      if (err < error) {
-        error = err;
-        gains[ i + 1 ] = g;
-      }
-    }
-  }
-#if 0
-  std::cerr << gain << " => "; double sum = 0;
-  for (unsigned int i = 0; i < gains.size(); i++) {
-    sum += gains[ i + 1 ];
-    std::cerr << gains[ i + 1 ] << " ";
-  }
-  std::cerr << " = " << sum << std::endl;
-#endif
-  if (_dev) {
-    for (unsigned int stage = 1; stage <= gains.size(); stage++) {
-      osmosdr_set_tuner_if_gain( _dev, stage, int(gains[ stage ] * 10.0));
-    }
-  }
-
-  _if_gain = gain;
-  return gain;
-}
-
-std::vector< std::string > osmosdr_src_c::get_antennas( size_t chan )
-{
-  std::vector< std::string > antennas;
-
-  antennas += get_antenna( chan );
-
-  return antennas;
-}
-
-std::string osmosdr_src_c::set_antenna( const std::string & antenna, size_t chan )
-{
-  return get_antenna( chan );
-}
-
-std::string osmosdr_src_c::get_antenna( size_t chan )
-{
-  return "RX";
-}
diff --git a/lib/osmosdr/osmosdr_src_c.h b/lib/osmosdr/osmosdr_src_c.h
deleted file mode 100644
index f8f18ec..0000000
--- a/lib/osmosdr/osmosdr_src_c.h
+++ /dev/null
@@ -1,140 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2012 Dimitri Stolnikov <horiz0n@gmx.net>
- *
- * GNU Radio is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3, or (at your option)
- * any later version.
- *
- * GNU Radio is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GNU Radio; see the file COPYING.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street,
- * Boston, MA 02110-1301, USA.
- */
-#ifndef INCLUDED_OSMOSDR_SRC_C_H
-#define INCLUDED_OSMOSDR_SRC_C_H
-
-#include <gnuradio/sync_block.h>
-
-#include <gnuradio/thread/thread.h>
-
-#include <mutex>
-#include <condition_variable>
-
-#include "source_iface.h"
-
-class osmosdr_src_c;
-typedef struct osmosdr_dev osmosdr_dev_t;
-
-/*
- * We use boost::shared_ptr's instead of raw pointers for all access
- * to gr::blocks (and many other data structures).  The shared_ptr gets
- * us transparent reference counting, which greatly simplifies storage
- * management issues.  This is especially helpful in our hybrid
- * C++ / Python system.
- *
- * See http://www.boost.org/libs/smart_ptr/smart_ptr.htm
- *
- * As a convention, the _sptr suffix indicates a boost::shared_ptr
- */
-typedef boost::shared_ptr<osmosdr_src_c> osmosdr_src_c_sptr;
-
-/*!
- * \brief Return a shared_ptr to a new instance of osmosdr_src_c.
- *
- * To avoid accidental use of raw pointers, osmosdr_src_c's
- * constructor is private.  osmosdr_make_src_c is the public
- * interface for creating new instances.
- */
-osmosdr_src_c_sptr osmosdr_make_src_c (const std::string & args = "");
-
-/*!
- * \brief Provides a stream of complex samples.
- * \ingroup block
- *
- * \sa sink for a version that subclasses gr::hier_block2.
- */
-class osmosdr_src_c :
-    public gr::sync_block,
-    public source_iface
-{
-private:
-  // The friend declaration allows osmosdr_make_src_c to
-  // access the private constructor.
-
-  friend osmosdr_src_c_sptr osmosdr_make_src_c (const std::string & args);
-
-  /*!
-   * \brief Provides a stream of complex samples.
-   */
-  osmosdr_src_c (const std::string & args);  	// private constructor
-
- public:
-  ~osmosdr_src_c ();	// public destructor
-
-  int work( int noutput_items,
-            gr_vector_const_void_star &input_items,
-            gr_vector_void_star &output_items );
-
-  static std::vector< std::string > get_devices();
-
-  size_t get_num_channels( void );
-
-  osmosdr::meta_range_t get_sample_rates( void );
-  double set_sample_rate( double rate );
-  double get_sample_rate( void );
-
-  osmosdr::freq_range_t get_freq_range( size_t chan = 0 );
-  double set_center_freq( double freq, size_t chan = 0 );
-  double get_center_freq( size_t chan = 0 );
-  double set_freq_corr( double ppm, size_t chan = 0 );
-  double get_freq_corr( size_t chan = 0 );
-
-  std::vector<std::string> get_gain_names( size_t chan = 0 );
-  osmosdr::gain_range_t get_gain_range( size_t chan = 0 );
-  osmosdr::gain_range_t get_gain_range( const std::string & name, size_t chan = 0 );
-  bool set_gain_mode( bool automatic, size_t chan = 0 );
-  bool get_gain_mode( size_t chan = 0 );
-  double set_gain( double gain, size_t chan = 0 );
-  double set_gain( double gain, const std::string & name, size_t chan = 0 );
-  double get_gain( size_t chan = 0 );
-  double get_gain( const std::string & name, size_t chan = 0 );
-
-  double set_if_gain( double gain, size_t chan = 0 );
-
-  std::vector< std::string > get_antennas( size_t chan = 0 );
-  std::string set_antenna( const std::string & antenna, size_t chan = 0 );
-  std::string get_antenna( size_t chan = 0 );
-
-private:
-  static void _osmosdr_callback(unsigned char *buf, uint32_t len, void *ctx);
-  void osmosdr_callback(unsigned char *buf, uint32_t len);
-  static void _osmosdr_wait(osmosdr_src_c *obj);
-  void osmosdr_wait();
-
-  osmosdr_dev_t *_dev;
-  gr::thread::thread _thread;
-  unsigned short **_buf;
-  unsigned int _buf_num;
-  unsigned int _buf_len;
-  unsigned int _buf_head;
-  unsigned int _buf_used;
-  std::mutex _buf_mutex;
-  std::condition_variable _buf_cond;
-  bool _running;
-
-  unsigned int _buf_offset;
-  int _samp_avail;
-
-  bool _auto_gain;
-  double _if_gain;
-  unsigned int _skipped;
-};
-
-#endif /* INCLUDED_OSMOSDR_SRC_C_H */
diff --git a/lib/source_impl.cc b/lib/source_impl.cc
index 41c45bf..8f8efef 100644
--- a/lib/source_impl.cc
+++ b/lib/source_impl.cc
@@ -32,10 +32,6 @@
 #include <gnuradio/blocks/throttle.h>
 #include <gnuradio/constants.h>
 
-#ifdef ENABLE_OSMOSDR
-#include <osmosdr_src_c.h>
-#endif
-
 #ifdef ENABLE_FCD
 #include <fcd_source_c.h>
 #endif
@@ -56,10 +52,6 @@
 #include <uhd_source_c.h>
 #endif
 
-#ifdef ENABLE_MIRI
-#include <miri_source_c.h>
-#endif
-
 #ifdef ENABLE_SDRPLAY
 #include <sdrplay_source_c.h>
 #endif
@@ -128,9 +120,6 @@ source_impl::source_impl( const std::string &args )
 #ifdef ENABLE_FILE
   dev_types.push_back("file");
 #endif
-#ifdef ENABLE_OSMOSDR
-  dev_types.push_back("osmosdr");
-#endif
 #ifdef ENABLE_FCD
   dev_types.push_back("fcd");
 #endif
@@ -143,9 +132,6 @@ source_impl::source_impl( const std::string &args )
 #ifdef ENABLE_UHD
   dev_types.push_back("uhd");
 #endif
-#ifdef ENABLE_MIRI
-  dev_types.push_back("miri");
-#endif
 #ifdef ENABLE_SDRPLAY
   dev_types.push_back("sdrplay");
 #endif
@@ -200,10 +186,6 @@ source_impl::source_impl( const std::string &args )
 
   if ( ! device_specified ) {
     std::vector< std::string > dev_list;
-#ifdef ENABLE_OSMOSDR
-    for (std::string dev : osmosdr_src_c::get_devices())
-      dev_list.push_back( dev );
-#endif
 #ifdef ENABLE_FCD
     for (std::string dev : fcd_source_c::get_devices())
       dev_list.push_back( dev );
@@ -216,10 +198,6 @@ source_impl::source_impl( const std::string &args )
     for (std::string dev : uhd_source_c::get_devices())
       dev_list.push_back( dev );
 #endif
-#ifdef ENABLE_MIRI
-    for (std::string dev : miri_source_c::get_devices())
-      dev_list.push_back( dev );
-#endif
 #ifdef ENABLE_SDRPLAY
     for (std::string dev : sdrplay_source_c::get_devices())
       dev_list.push_back( dev );
@@ -278,13 +256,6 @@ source_impl::source_impl( const std::string &args )
     source_iface *iface = NULL;
     gr::basic_block_sptr block;
 
-#ifdef ENABLE_OSMOSDR
-    if ( dict.count("osmosdr") ) {
-      osmosdr_src_c_sptr src = osmosdr_make_src_c( arg );
-      block = src; iface = src.get();
-    }
-#endif
-
 #ifdef ENABLE_FCD
     if ( dict.count("fcd") ) {
       fcd_source_c_sptr src = make_fcd_source_c( arg );
@@ -320,13 +291,6 @@ source_impl::source_impl( const std::string &args )
     }
 #endif
 
-#ifdef ENABLE_MIRI
-    if ( dict.count("miri") ) {
-      miri_source_c_sptr src = make_miri_source_c( arg );
-      block = src; iface = src.get();
-    }
-#endif
-
 #ifdef ENABLE_SDRPLAY
     if ( dict.count("sdrplay") ) {
       sdrplay_source_c_sptr src = make_sdrplay_source_c( arg );