;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Oleg Pykhalov <go.wigust@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 services sound)
  #:use-module (gnu services base)
  #:use-module (gnu services configuration)
  #:use-module (gnu services shepherd)
  #:use-module (gnu services)
  #:use-module (gnu system shadow)
  #:use-module (guix gexp)
  #:use-module (guix packages)
  #:use-module (guix records)
  #:use-module (guix store)
  #:use-module (gnu packages linux)
  #:use-module (gnu packages pulseaudio)
  #:use-module (ice-9 match)
  #:export (alsa-configuration
            alsa-service-type))

;;; Commentary:
;;;
;;; Sound services.
;;;
;;; Code:


;;;
;;; ALSA
;;;

(define-record-type* <alsa-configuration>
  alsa-configuration make-alsa-configuration alsa-configuration?
  (alsa-plugins alsa-configuration-alsa-plugins ;<package>
                (default alsa-plugins))
  (pulseaudio?   alsa-configuration-pulseaudio? ;boolean
                 (default #t))
  (extra-options alsa-configuration-extra-options ;string
                 (default "")))

(define alsa-config-file
  ;; Return the ALSA configuration file.
  (match-lambda
    (($ <alsa-configuration> alsa-plugins pulseaudio? extra-options)
     (apply mixed-text-file "asound.conf"
            `("# Generated by 'alsa-service'.\n\n"
              ,@(if pulseaudio?
                    `("# Use PulseAudio by default
pcm_type.pulse {
  lib \"" ,#~(string-append #$alsa-plugins:pulseaudio
                            "/lib/alsa-lib/libasound_module_pcm_pulse.so") "\"
}

ctl_type.pulse {
  lib \"" ,#~(string-append #$alsa-plugins:pulseaudio
                            "/lib/alsa-lib/libasound_module_ctl_pulse.so") "\"
}

pcm.!default {
  type pulse
  fallback \"sysdefault\"
  hint {
    show on
    description \"Default ALSA Output (currently PulseAudio Sound Server)\"
  }
}

ctl.!default {
  type pulse
  fallback \"sysdefault\"
}\n\n")
                    '())
              ,extra-options)))))

(define (alsa-etc-service config)
  (list `("asound.conf" ,(alsa-config-file config))))

(define alsa-service-type
  (service-type
   (name 'alsa)
   (extensions
    (list (service-extension etc-service-type alsa-etc-service)))
   (default-value (alsa-configuration))
   (description "Configure low-level Linux sound support, ALSA.")))

;;; sound.scm ends here
a href='/guix/commit/gnu/services/herd.scm?id=6aeae5b90b9513d316141c0131fd43c76a200f63'>herd: Define 'shepherd-message-port'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-07-26 19:19:49 +0200'>2019-07-26</span></td><td><a href='/guix/commit/gnu/services/herd.scm?id=5c793753b31b1dcd9a554bce953124f7ae88ca9a'>guix system: Add 'reconfigure' module.</a><span class='msg-avail'>...</span></td><td>Jakob L. Kreuze</td></tr>
<tr><td><span title='2019-06-02 01:38:36 +0200'>2019-06-02</span></td><td><a href='/guix/commit/gnu/services/herd.scm?id=bb64b2e7c0ab14cf899c1d81892b59fa877d4d9c'>herd: Use the Guile 2.2 'setvbuf' API.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
cardo Wurmus</td></tr>
<tr><td><span title='2020-03-16 22:58:37 +0100'>2020-03-16</span></td><td><a href='/guix/commit/gnu/services/nfs.scm?id=70526bdbe0221ed9077df31cb24374100685725b'>services: nfs: Remove unnecessary "mount" invocation.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-03-16 22:58:37 +0100'>2020-03-16</span></td><td><a href='/guix/commit/gnu/services/nfs.scm?id=e28770df718b733959a4cae933e9c2e8d32715be'>services: nfs: Move activation snippet out of line.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-03-08 00:26:02 -0500'>2020-03-08</span></td><td><a href='/guix/commit/gnu/services/nfs.scm?id=5fdc5b2d57d2e7ab04dbaf9c85e7f34eebe81495'>services: nfs: Run rpc.mountd in foreground.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2020-01-08 23:56:16 +0100'>2020-01-08</span></td><td><a href='/guix/commit/gnu/services/nfs.scm?id=907eeac2e7d5d9c10b65038d486876e577c80d85'>services: nfs: Add nfs-service-type.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2020-01-08 23:56:16 +0100'>2020-01-08</span></td><td><a href='/guix/commit/gnu/services/nfs.scm?id=a6bdca6b9b7a5de8244b46d0e16047f6deb31272'>services: nfs: Allow gss-service-type to be extended.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2020-01-08 23:56:16 +0100'>2020-01-08</span></td><td><a href='/guix/commit/gnu/services/nfs.scm?id=2a23942e3fbda98a9457304785481dd54302714a'>services: nfs: Add verbosity control to idmap-service-type.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2020-01-08 23:56:16 +0100'>2020-01-08</span></td><td><a href='/guix/commit/gnu/services/nfs.scm?id=af32ea35830383deb3b1540ca1b829eb53c6fe0d'>services: nfs: Allow idmap-service-type to be extended.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2020-01-08 23:56:16 +0100'>2020-01-08</span></td><td><a href='/guix/commit/gnu/services/nfs.scm?id=5d4ba49891996df93b4219c9dc9a438cac8f4a71'>services: nfs: Fix indentation and typo.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2020-01-08 23:56:16 +0100'>2020-01-08</span></td><td><a href='/guix/commit/gnu/services/nfs.scm?id=25c8c8cd4f384f9da08ea277bc5da16ca26128de'>services: nfs: Allow pipefs-service-type to be extended.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2020-01-08 23:56:16 +0100'>2020-01-08</span></td><td><a href='/guix/commit/gnu/services/nfs.scm?id=ba1808d5e7342ec749b006276bece6499cfaa4ba'>services: nfs: Allow rpcbind-service-type to be extended.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2020-01-08 23:56:11 +0100'>2020-01-08</span></td><td><a href='/guix/commit/gnu/services/nfs.scm?id=981ce38937c21ed1395c0a6ff7e384890234fa62'>services: nfs: Fix name of package variable.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>