gnu: Add libsigrok.

* gnu/packages/electronics.scm (libsigrok): New variable.

Signed-off-by: Danny Milosavljevic <dannym@scratchpost.org>

gnu/packages/electronics.scm

@@ -24,9 +24,12 @@ (define-module (gnu packages electronics)
   #:use-module (guix build-system gnu)
   #:use-module (gnu packages)
   #:use-module (gnu packages check)
+  #:use-module (gnu packages compression)
   #:use-module (gnu packages documentation)
   #:use-module (gnu packages glib)
   #:use-module (gnu packages graphviz)
+  #:use-module (gnu packages libftdi)
+  #:use-module (gnu packages libusb)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
   #:use-module (gnu packages sdcc))
@@ -111,3 +114,83 @@ (define-public sigrok-firmware-fx2lafw
     (description "Fx2lafw is free firmware for Cypress FX2 chips which makes them usable
 as simple logic analyzer and/or oscilloscope hardware.")
     (license license:gpl2+)))
+
+(define-public libsigrok
+  (package
+    (name "libsigrok")
+    (version "0.5.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "http://sigrok.org/download/source/libsigrok/libsigrok-"
+                    version ".tar.gz"))
+              (sha256
+               (base32
+                "197kr5ip98lxn7rv10zs35d1w0j7265s0xvckx0mq2l8kdvqd32c"))))
+    (outputs '("out" "doc"))
+    (arguments
+     `(#:tests? #f ; tests need usb access
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'configure 'change-udev-group
+           (lambda _
+             (let ((file "contrib/z60_libsigrok.rules"))
+               (substitute* file
+                 (("plugdev") "dialout"))
+               (rename-file file "contrib/60-libsigrok.rules")
+               #t)))
+         (add-after 'build 'build-doc
+           (lambda _
+             (zero? (system* "doxygen"))))
+         (add-after 'install 'install-doc
+           (lambda* (#:key outputs #:allow-other-keys)
+             (copy-recursively "doxy/html-api"
+                               (string-append (assoc-ref outputs "doc")
+                                              "/share/doc/libsigrok"))
+             #t))
+         (add-after 'install-doc 'install-udev-rules
+           (lambda* (#:key outputs #:allow-other-keys)
+             (install-file "contrib/60-libsigrok.rules"
+                           (string-append
+                            (assoc-ref outputs "out")
+                            "/lib/udev/rules.d/"))))
+         (add-after 'install-udev-rules 'install-fw
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let* ((fx2lafw (assoc-ref inputs "sigrok-firmware-fx2lafw"))
+                    (out (assoc-ref outputs "out"))
+                    (dir-suffix "/share/sigrok-firmware/")
+                    (input-dir (string-append fx2lafw dir-suffix))
+                    (output-dir (string-append out dir-suffix)))
+               (mkdir-p output-dir)
+               (for-each
+                (lambda (file)
+                  (install-file file output-dir))
+                (find-files input-dir ".")))
+             #t)))))
+    (native-inputs
+     `(("check" ,check)
+       ("doxygen" ,doxygen)
+       ("graphviz" ,graphviz)
+       ("sigrok-firmware-fx2lafw" ,sigrok-firmware-fx2lafw)
+       ("pkg-config" ,pkg-config)))
+    (inputs
+     `(("python" ,python)
+       ("zlib" ,zlib)))
+    ;; libsigrokcxx.pc lists "glibmm" in Requires
+    ;; libsigrok.pc lists "libserialport", "libusb", "libftdi" and "libzip" in
+    ;; Requires.private and "glib" in Requires
+    (propagated-inputs
+     `(("glib" ,glib)
+       ("glibmm" ,glibmm)
+       ("libserialport" ,libserialport)
+       ("libusb" ,libusb)
+       ("libftdi" ,libftdi)
+       ("libzip" ,libzip)))
+    (build-system gnu-build-system)
+    (home-page "http://www.sigrok.org/wiki/Libsigrok")
+    (synopsis "Library which provides the basic hardware access drivers for logic
+analyzers")
+    (description "@code{libsigrok} is a shared library written in C which provides the basic hardware
+access drivers for logic analyzers and other supported devices, as well as input/output file
+format support.")
+    (license license:gpl3+)))