MycroftOS: Different OS layout changes

- Prepare system script to run at boot to prepare the system.
  Now used to restore sound configuration files to default before
  udev takes over and configures the system for what it sees.
  Later can be used to prepare the system for read-only OS similar
  as I have done during my Kodi developemtn years.
- Sound config changes to default settings.
- Remove forgotten wifi-setup system.

buildroot-external/Config.in

@@ -1,9 +1,9 @@
 menu "Mycroft A.I. Personal Assistant"
 	source "$BR2_EXTERNAL_MYCROFTOS_PATH/package/firstboot-service/Config.in"
+	source "$BR2_EXTERNAL_MYCROFTOS_PATH/package/prepare_system-service/Config.in"
 	source "$BR2_EXTERNAL_MYCROFTOS_PATH/package/python-mycroft/Config.in"
 	source "$BR2_EXTERNAL_MYCROFTOS_PATH/package/mycroft-service/Config.in"
 	source "$BR2_EXTERNAL_MYCROFTOS_PATH/package/mycroft-splash/Config.in"
-	source "$BR2_EXTERNAL_MYCROFTOS_PATH/package/wifisetup-service/Config.in"
 menu "Additional drivers, libraries and/or applications"
 	source "$BR2_EXTERNAL_MYCROFTOS_PATH/package/fann/Config.in"
 	source "$BR2_EXTERNAL_MYCROFTOS_PATH/package/respeaker/Config.in"

buildroot-external/configs/mycroftos_rpi3_defconfig

@@ -292,6 +292,7 @@ BR2_PACKAGE_HOST_PYTHON_LXML=y
 BR2_PACKAGE_HOST_PYTHON_SIX=y
 BR2_PACKAGE_HOST_PYTHON_XLRD=y
 BR2_PACKAGE_FIRSTBOOT_SERVICE=y
+BR2_PACKAGE_PREPARE_SYSTEM_SERVICE=y
 BR2_PACKAGE_PYTHON_MYCROFT=y
 BR2_PACKAGE_MYCROFT_SERVICE=y
 BR2_PACKAGE_MYCROFT_SPLASH=y

buildroot-external/package/prepare_system-service/Config.in

@@ -0,0 +1,6 @@
+config BR2_PACKAGE_PREPARE_SYSTEM_SERVICE
+	bool "prepare_system-service"
+	help
+	  A systemd service that prepares the system.
+	  Used to change/move files before everything
+	  gets loaded.

buildroot-external/package/prepare_system-service/prepare_system

@@ -0,0 +1,14 @@
+#!/bin/bash
+#
+set -x
+exec 1>/var/log/$(basename $0).log 2>&1
+
+rm /etc/asound.conf
+rm /etc/pulse/default.pa
+rm /etc/pulse/system.pa
+rm /etc/pulse/daemon.conf
+
+ln -s /etc/default-asound.conf /etc/asound.conf
+ln -s /etc/pulse/pulseaudio-default.pa /etc/pulse/default.pa
+ln -s /etc/pulse/pulseaudio-system.pa /etc/pulse/system.pa
+ln -s /etc/pulse/pulseaudio-daemon.conf /etc/pulse/daemon.conf

buildroot-external/package/prepare_system-service/prepare_system-service.mk

@@ -0,0 +1,22 @@
+################################################################################
+#
+# prepare_system-service
+#
+################################################################################
+
+PREPARE_SYSTEM_SERVICE_VERSION = 0.1.0
+PREPARE_SYSTEM_SERVICE_SITE = $(BR2_EXTERNAL_MYCROFTOS_PATH)/package/prepare_system-service
+PREPARE_SYSTEM_SERVICE_SITE_METHOD = local
+PREPARE_SYSTEM_SERVICE_LICENSE = Apache License 2.0
+PREPARE_SYSTEM_SERVICE_LICENSE_FILES = LICENSE
+
+define PREPARE_SYSTEM_SERVICE_INSTALL_TARGET_CMDS
+	$(INSTALL) -m 0755 $(@D)/prepare_system $(TARGET_DIR)/usr/sbin/
+	$(INSTALL) -D -m 644 $(@D)/prepare_system.service \
+		$(TARGET_DIR)/usr/lib/systemd/system/prepare_system.service
+	mkdir -p $(TARGET_DIR)/etc/systemd/system/sysinit.target.wants
+	ln -fs ../../../../usr/lib/systemd/system/prepare_system.service \
+		$(TARGET_DIR)/etc/systemd/system/sysinit.target.wants/prepare_system.service
+endef
+
+$(eval $(generic-package))

buildroot-external/package/prepare_system-service/prepare_system.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=System prepare run script
+DefaultDependencies=no
+Conflicts=shutdown.target
+After=systemd-remount-fs.service
+Before=sysinit.target shutdown.target
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+ExecStart=/usr/sbin/prepare_system
+
+[Install]
+WantedBy=sysinit.target

buildroot-external/package/respeaker/seeed-voicecard

@@ -122,6 +122,7 @@ if [ "$overlay" ]; then
     rm /etc/asound.conf
     rm /var/lib/alsa/asound.state
     rm /etc/pulse/default.pa
+    rm /etc/pulse/system.pa
     rm /etc/pulse/daemon.conf
 
     kernel_ver=$(get_kernel_version)
@@ -148,6 +149,8 @@ if [ "$overlay" ]; then
     ln -s $asound_state /var/lib/alsa/asound.state
     echo "create $overlay pulse default file"
     ln -s $pulse_default /etc/pulse/default.pa
+    echo "create $overlay pulse system file"
+    ln -s $pulse_default /etc/pulse/system.pa
     echo "create $overlay pulse daemon file"
     ln -s $pulse_daemon /etc/pulse/daemon.conf
 fi

buildroot-external/package/wifisetup-service/Config.in

@@ -1,4 +0,0 @@
-config BR2_PACKAGE_WIFISETUP_SERVICE
-	bool "wifisetup-service"
-	help
-	  A systemd service to start the MycroftOS-WiFiSetup.

buildroot-external/package/wifisetup-service/mycroftos-wifisetup.service

@@ -1,12 +0,0 @@
-[Unit]
-Description=MycroftOS Wifi Setup
-After=network.target
-
-[Service]
-Type=simple
-User=root
-WorkingDirectory=/usr/lib/node_modules/MycroftOS-WiFiSetup/
-ExecStart=/usr/lib/node_modules/MycroftOS-WiFiSetup/run.sh 
-
-[Install]
-WantedBy=multi-user.target

buildroot-external/package/wifisetup-service/wifisetup-service.mk

@@ -1,21 +0,0 @@
-################################################################################
-#
-# wifisetup-service
-#
-################################################################################
-
-WIFISETUP_SERVICE_VERSION = 0.1.0
-WIFISETUP_SERVICE_SITE = $(BR2_EXTERNAL_MYCROFTOS_PATH)/package/wifisetup-service
-WIFISETUP_SERVICE_SITE_METHOD = local
-WIFISETUP_SERVICE_LICENSE = Apache License 2.0
-WIFISETUP_SERVICE_LICENSE_FILES = LICENSE
-
-define WIFISETUP_SERVICE_INSTALL_TARGET_CMDS
-	$(INSTALL) -D -m 644 $(@D)/mycroftos-wifisetup.service \
-		$(TARGET_DIR)/usr/lib/systemd/system/mycroftos-wifisetup.service
-	mkdir -p $(TARGET_DIR)/etc/systemd/system/multi-user.target.wants
-	ln -fs ../../../../usr/lib/systemd/system/mycroftos-wifisetup.service \
-		$(TARGET_DIR)/etc/systemd/system/multi-user.target.wants/mycroftos-wifisetup.service
-endef
-
-$(eval $(generic-package))

buildroot-external/rootfs-overlay/etc/default-asound.conf

@@ -0,0 +1,19 @@
+defaults.ctl.card 0
+defaults.pcm.card 0
+defaults.pcm.device 0
+
+pcm.!default  {
+ type plug
+ slave.pcm "master"
+}
+
+ctl.!default {
+ type hw card 0
+}
+
+pcm.master {
+  type softvol
+  slave.pcm "plughw:0"
+  control.name "Master"
+  control.card 0
+}

buildroot-external/rootfs-overlay/etc/pulse/pulseaudio-daemon.conf

@@ -0,0 +1,89 @@
+# This file is part of PulseAudio.
+#
+# PulseAudio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# PulseAudio 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 Lesser General Public License
+# along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
+
+## Configuration file for the PulseAudio daemon. See pulse-daemon.conf(5) for
+## more information. Default values are commented out.  Use either ; or # for
+## commenting.
+
+; daemonize = no
+; fail = yes
+; allow-module-loading = yes
+; allow-exit = yes
+; use-pid-file = yes
+; system-instance = no
+; local-server-type = user
+; enable-shm = yes
+; enable-memfd = yes
+; shm-size-bytes = 0 # setting this 0 will use the system-default, usually 64 MiB
+; lock-memory = no
+; cpu-limit = no
+
+; high-priority = yes
+; nice-level = -11
+
+; realtime-scheduling = yes
+; realtime-priority = 5
+
+; exit-idle-time = 20
+; scache-idle-time = 20
+
+; dl-search-path = (depends on architecture)
+
+; load-default-script-file = yes
+; default-script-file = /etc/pulse/default.pa
+
+; log-target = auto
+; log-level = notice
+; log-meta = no
+; log-time = no
+; log-backtrace = 0
+
+; resample-method = speex-float-1
+; avoid-resampling = false
+; enable-remixing = yes
+; remixing-use-all-sink-channels = yes
+; enable-lfe-remixing = no
+; lfe-crossover-freq = 0
+
+; flat-volumes = yes
+
+; rlimit-fsize = -1
+; rlimit-data = -1
+; rlimit-stack = -1
+; rlimit-core = -1
+; rlimit-as = -1
+; rlimit-rss = -1
+; rlimit-nproc = -1
+; rlimit-nofile = 256
+; rlimit-memlock = -1
+; rlimit-locks = -1
+; rlimit-sigpending = -1
+; rlimit-msgqueue = -1
+; rlimit-nice = 31
+; rlimit-rtprio = 9
+; rlimit-rttime = 200000
+
+; default-sample-format = s16le
+; default-sample-rate = 44100
+; alternate-sample-rate = 48000
+; default-sample-channels = 2
+; default-channel-map = front-left,front-right
+
+; default-fragments = 4
+; default-fragment-size-msec = 25
+
+; enable-deferred-volume = yes
+; deferred-volume-safety-margin-usec = 8000
+; deferred-volume-extra-delay-usec = 0