Merge branch 'master' into core-updates

1 files changed, 124 insertions, 0 deletions

diff --git a/gnu/packages/hardware.scm b/gnu/packages/hardware.scm
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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;;
+;;; 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 hardware)
+  #:use-module (gnu packages compression)
+  #:use-module (gnu packages glib)
+  #:use-module (gnu packages libusb)
+  #:use-module (gnu packages linux)
+  #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages xdisorg)
+  #:use-module (gnu packages xorg)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix download)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix packages))
+
+;; This is a module for packages related to physical hardware that don't (yet)
+;; have a more specific home like gps.scm, security-token.scm, &c.
+
+(define-public ddcutil
+  (package
+    (name "ddcutil")
+    (version "0.9.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://www.ddcutil.com/tarballs/"
+                           name "-" version ".tar.gz"))
+       (sha256
+        (base32 "1b4bm3zhk5vnad6fxf0mn8nrlj3fngifl7nzxgxw0n56hlv7ccv0"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("eudev" ,eudev)
+       ("glib" ,glib)
+       ("libdrm" ,libdrm)               ; enhanced diagnostics
+       ("libusb" ,libusb)               ; support USB monitors
+       ("libx11" ,libx11)               ; enhanced diagnostics
+       ("libxrandr" ,libxrandr)
+       ("zlib" ,zlib)))
+    (home-page "https://www.ddcutil.com/")
+    (synopsis "Control external monitor settings")
+    (description
+     "ddcutil can query and modify most external monitors' settings, such as
+brightness, colour levels, and input sources.  Generally speaking, any setting
+that can be changed by pressing buttons on the monitor can be modified by
+ddcutil.
+
+ddcutil communicates directly with monitors implementing the Monitor Control
+Command Set (@dfn{MCCS}).  It usually does so through the the Display Data
+Channel Command Interface (@dfn{DDC/CI}) protocol on the I2C bus, but can also
+communicate over USB as per the USB Monitor Control Class Specification.
+
+One particular use case is in colour profile management.  Monitor calibration
+is relative to the monitor colour settings currently in effect, e.g. red gain.
+ddcutil allows colour-related settings to be saved at the time a monitor is
+calibrated, and restored when the calibration is applied.")
+    (license (list license:bsd-3        ; FindDDCUtil.cmake
+                   license:gpl2+))))    ; everything else
+
+(define-public msr-tools
+  (package
+    (name "msr-tools")
+    (version "1.3")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://01.org/sites/default/files/downloads/"
+                           name "/" name "-" version ".zip"))
+       (sha256
+        (base32 "07hxmddg0l31kjfmaq84ni142lbbvgq6391r8bd79wpm819pnigr"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:make-flags
+       (list (string-append "sbindir=" (assoc-ref %outputs "out") "/sbin"))
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)            ; no configure script
+         (add-before 'install 'create-output-directory
+           (lambda* (#:key outputs #:allow-other-keys)
+             ;; 'make install' assumes that sbindir exists.
+             (let* ((out  (assoc-ref outputs "out"))
+                    (sbin (string-append out "/sbin")))
+               (mkdir-p sbin)
+               #t))))
+       #:tests? #f))                    ; no test suite
+    (native-inputs
+     `(("unzip" ,unzip)))
+    ;; These registers and the CPUID instruction only exist on (most) x86 chips.
+    (supported-systems (list "i686-linux" "x86_64-linux"))
+    (home-page "https://01.org/msr-tools/")
+    (synopsis "Read and write Model-Specific Registers (@dfn{MSR})")
+    (description
+     "The MSR Tools project provides console utilities to directly access the
+Model-Specific Registers (@dfn{MSR}s) and CPU ID of Intel-compatible processors:
+
+@itemize
+@item @command{cpuid}: show identification and feature information of any CPU
+@item @command{rdmsr}: read MSRs from any CPU or all CPUs
+@item @command{wrmsr}: write to MSRs on any CPU or all CPUs
+@end itemize
+
+These tools can be used to query and modify certain low-level CPU parameters,
+such as the Turbo Boost ratio and Thermal Design Power (@dfn{TDP}) limits.
+
+MSR addresses differ (greatly) between processors, and any such modification can
+be dangerous and may void your CPU or system board's warranty.")
+    (license license:gpl2)))     ; cpuid.c is gpl2, {rd,wr}msr.c are gpl2+