;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017, 2018, 2019 Arun Isaac <arunisaac@systemreboot.net>
;;; Copyright © 2019 Evan Straw <evan.straw99@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix 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 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix 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 Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages ham-radio)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix git-download)
  #:use-module (gnu packages autotools)
  #:use-module (gnu packages base)
  #:use-module (gnu packages gtk)
  #:use-module (gnu packages image)
  #:use-module (gnu packages libusb)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages pulseaudio)
  #:use-module (gnu packages python)
  #:use-module (gnu packages python-xyz)
  #:use-module (gnu packages xml)
  #:use-module (guix build-system cmake)
  #:use-module (guix build-system gnu)
  #:use-module (guix build-system python))

(define-public rtl-sdr
  (package
    (name "rtl-sdr")
    (version "0.6.0")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
		  (url "git://git.osmocom.org/rtl-sdr.git")
		  (commit version)))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "0lmvsnb4xw4hmz6zs0z5ilsah5hjz29g1s0050n59fllskqr3b8k"))))
    (build-system cmake-build-system)
    (inputs
     `(("libusb" ,libusb)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (arguments
     `(#:configure-flags '("-DDETACH_KERNEL_DRIVER=ON")
       #:tests? #f)) ; No tests
    (home-page "https://osmocom.org/projects/sdr/wiki/rtl-sdr")
    (synopsis "Software defined radio driver for Realtek RTL2832U")
    (description "DVB-T dongles based on the Realtek RTL2832U can be used as a
cheap software defined radio, since the chip allows transferring the raw I/Q
samples to the host.  @code{rtl-sdr} provides drivers for this purpose.")
    (license license:gpl2+)))

(define-public chirp
  (package
    (name "chirp")
    (version "20181205")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "https://trac.chirp.danplanet.com/chirp_daily/daily-"
                           version "/chirp-daily-" version ".tar.gz"))
       (sha256
        (base32
         "1cp280b95j39xaxs50zn55jigg7pyfpm9n098hmsyxrplqn8z43c"))))
    (build-system python-build-system)
    (inputs
     `(("python2-libxml2" ,python2-libxml2)
       ("python2-pygtk" ,python2-pygtk)
       ("python2-pyserial" ,python2-pyserial)))
    (arguments
     `(#:python ,python-2))
    (home-page "https://chirp.danplanet.com")
    (synopsis "Cross-radio programming tool")
    (description "Chirp is a cross-radio programming tool.  It supports a
growing list of radios across several manufacturers and allows transferring of
memory contents between them.")
    (license (list license:gpl3+
                   license:lgpl3+)))) ; chirp/elib_intl.py

(define-public aptdec
  (package
    (name "aptdec")
    (version "1.7")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/csete/aptdec")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "1hf0zb51qc6fyhdjxyij1n3vgwnw3cwksc3r11szbhkml14qjnzk"))))
    (build-system gnu-build-system)
    (inputs
     `(("libpng" ,libpng)
       ("libsndfile" ,libsndfile)))
    (arguments
     `(#:make-flags (list "CC=gcc")
       #:tests? #f ; no tests
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)
         (replace 'install
           (lambda* (#:key outputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out")))
               (install-file "atpdec" (string-append out "/bin")))
             #t)))))
    (home-page "https://github.com/csete/aptdec")
    (synopsis "NOAA Automatic Picture Transmission (APT) decoder")
    (description "Aptdec decodes Automatic Picture Transmission (APT) images.
These are medium resolution images of the Earth transmitted by, among other
satellites, the POES NOAA weather satellite series.  These transmissions are
on a frequency of 137 MHz.  They can be received using an inexpensive antenna
and a dedicated receiver.")
    (license license:gpl2+)))

(define-public liquid-dsp
  (package
    (name "liquid-dsp")
    (version "1.3.2")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/jgaeddert/liquid-dsp")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1n6dbg13q8ga5qhg1yiszwly4jj0rxqr6f1xwm9waaly5z493xsd"))))
    (build-system gnu-build-system)
    (native-inputs `(("autoconf" ,autoconf)))
    (home-page "https://liquidsdr.org")
    (synopsis "Digital signal processing library for software-defined radios")
    (description "liquid-dsp is a digital signal processing (DSP) library
designed specifically for software-defined radios on embedded platforms.  The
aim is to provide a lightweight DSP library that does not rely on a myriad of
external dependencies or proprietary and otherwise cumbersome frameworks.  All
signal processing elements are designed to be flexible, scalable, and dynamic,
including filters, filter design, oscillators, modems, synchronizers, complex
mathematical operations, and much more.")
    (license license:expat)))

(define-public redsea
  (package
    (name "redsea")
    (version "0.18")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/windytan/redsea")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1y96g0ra2krjb2kypm8s5gdfia45yci4f36klsvyzg8d53v5cwhn"))))
    (build-system gnu-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         ;; The configure.ac file does not explicitly link against libiconv
         ;; except on Mac OS, causing the build to fail. This phase comments
         ;; out the original AC_SUBST macro (located inside a conditional) and
         ;; adds an explicit use of it underneath, so that libiconv is always
         ;; linked against.
         (add-after 'unpack 'patch-libiconv
           (lambda _
             (substitute* "configure.ac"
               (("^ +AC_SUBST")
                "# AC_SUBST")
               (("esac")
                "esac\nAC_SUBST([ICONV], [\"-liconv\"])"))
             #t)))))
    (inputs
     `(("libiconv" ,libiconv)
       ("libsndfile" ,libsndfile)
       ("liquid-dsp" ,liquid-dsp)))
    (native-inputs
     `(("autoconf" ,autoconf)
       ("automake" ,automake)))
    (home-page "https://github.com/windytan/redsea")
    (synopsis "Lightweight RDS to JSON decoder")
    (description "redsea is a lightweight command-line @dfn{FM Radio Data
System} (FM-RDS) decoder.  Redsea can be used with any RTL-SDR USB radio stick
with the rtl_fm tool, or any other @dfn{software-defined radio} (SDR) via
csdr, for example.  It can also decode raw ASCII bitstream, the hex format
used by RDS Spy, and audio files containing @dfn{multiplex} signals (MPX).")
    (license license:expat)))