* Add debconf menu to automatically blacklist conflicting Linux audio drivers. * Automatically attempt to enable Linux UIO access to audio devices.

7 files changed, 169 insertions, 1 deletions

diff --git a/debian/changelog b/debian/changelog
index 2c723ba1..f326dd24 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -11,6 +11,9 @@ rumpkernel (0~20150715-2) UNRELEASED; urgency=medium
     nr_hugepages.
   * Add bug-script to librumpdev-pci0 to include lspci output in bug
     reports.
+  * Add debconf menu to automatically blacklist conflicting Linux audio
+    drivers.
+  * Automatically attempt to enable Linux UIO access to audio devices.
 
  -- Robert Millan <rmh@debian.org>  Mon, 07 Sep 2015 23:28:35 +0200
 
diff --git a/debian/control b/debian/control
index f5721ac8..5f15e5af 100644
--- a/debian/control
+++ b/debian/control
@@ -189,7 +189,9 @@ Description: Rump audio device libraries (development files)
 Package: librumpdev-audio0
 Section: libs
 Architecture: linux-any hurd-any
-Depends: ${shlibs:Depends}, ${misc:Depends}, librumpdev-pci0 (= ${binary:Version})
+Depends: ${shlibs:Depends}, ${misc:Depends}, librumpdev-pci0 (= ${binary:Version}),
+# Used by config script
+ pciutils [linux-any],
 Description: Rump audio device libraries (runtime)
  Rump kernels provide free, portable, componentized, kernel quality drivers
  such as file systems, POSIX system call handlers, PCI device drivers, a
diff --git a/debian/librumpdev-audio0.config.linux b/debian/librumpdev-audio0.config.linux
new file mode 100644
index 00000000..c95ebde2
--- /dev/null
+++ b/debian/librumpdev-audio0.config.linux
@@ -0,0 +1,20 @@
+#!/bin/bash
+set -e
+
+. /usr/share/debconf/confmodule
+
+audio_devices=$(lspci -n | awk '{ if ($2 == "0401:" || $2 == "0403:") print $1 }')
+
+first=true
+choices=
+for dev in ${audio_devices} ; do
+	if ! $first ; then
+		choices+=", "
+	fi
+	choices+="$(basename $(readlink /sys/bus/pci/devices/0000:${dev}/driver))"
+	first=false
+done
+
+db_subst librumpdev-audio/linux-modules CHOICES "$choices"
+db_input high librumpdev-audio/linux-modules || true
+db_go
diff --git a/debian/librumpdev-audio0.init.linux b/debian/librumpdev-audio0.init.linux
new file mode 100755
index 00000000..832d8d66
--- /dev/null
+++ b/debian/librumpdev-audio0.init.linux
@@ -0,0 +1,81 @@
+#!/bin/sh
+### BEGIN INIT INFO
+# Provides:          uio-audio
+# Required-Start:
+# Required-Stop:
+# Default-Start:     2 3 4 5
+# Default-Stop:      0 1 6
+# Short-Description: UIO access to audio devices
+# Description:       See:
+#		     https://github.com/rumpkernel/wiki/wiki/Howto%3A-Accessing-PCI-devices-from-userspace
+### END INIT INFO
+
+# Do NOT "set -e"
+
+# PATH should only include /usr/* if it runs after the mountnfs.sh script
+PATH=/sbin:/bin
+NAME=uio-audio
+SCRIPTNAME=/etc/init.d/$NAME
+
+# Read configuration variable file if it is present
+[ -r /etc/default/$NAME ] && . /etc/default/$NAME
+
+# Load the VERBOSE setting and other rcS variables
+. /lib/init/vars.sh
+
+# Define LSB log_* functions.
+# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
+# and status_of_proc is working.
+. /lib/lsb/init-functions
+
+#
+# Function that starts the daemon/service
+#
+do_start()
+{
+	modprobe uio_pci_generic || return 2
+	lspci_n=$(lspci -n)
+	for busid in $(echo "${lspci_n}" | awk '{ if ($2 == "0401:" || $2 == "0403:") print $1 }') ; do
+		echo "${lspci_n}" | grep "^${busid}\s" | awk '{ print $3 }' | tr ':' ' ' \
+			> /sys/bus/pci/drivers/uio_pci_generic/new_id || return 2
+	done
+	return 0
+}
+
+#
+# Function that stops the daemon/service
+#
+do_stop()
+{
+	rmmod uio_pci_generic || return 2
+	return 0
+}
+
+case "$1" in
+  start)
+	[ "$VERBOSE" != no ] && log_daemon_msg "Enabling UIO access to audio devices" "$NAME"
+	do_start
+	case "$?" in
+		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
+		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
+	esac
+	;;
+  stop)
+	[ "$VERBOSE" != no ] && log_daemon_msg "Disabling UIO access to audio devices" "$NAME"
+	do_stop
+	case "$?" in
+		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
+		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
+	esac
+	;;
+  status)
+	;;
+  restart|force-reload)
+	;;
+  *)
+	echo "Usage: $SCRIPTNAME {start|stop}" >&2
+	exit 3
+	;;
+esac
+
+:
diff --git a/debian/librumpdev-audio0.postinst.linux b/debian/librumpdev-audio0.postinst.linux
new file mode 100644
index 00000000..494aea53
--- /dev/null
+++ b/debian/librumpdev-audio0.postinst.linux
@@ -0,0 +1,31 @@
+#!/bin/sh
+set -e
+
+case "$1" in
+	configure)
+		echo "# AUTOMATICALLY GENERATED BY librumpdev-audio0 postinst" \
+			> /etc/modprobe.d/rump_audio_blacklist.conf
+
+		. /usr/share/debconf/confmodule
+
+		db_get librumpdev-audio/linux-modules
+		for module in $(echo "$RET" | tr ',' '\n') ; do
+			echo "blacklist $module"
+		done >> /etc/modprobe.d/rump_audio_blacklist.conf
+	;;
+
+	abort-upgrade|abort-remove|abort-deconfigure)
+	;;
+
+	*)
+		echo "postinst called with unknown argument \`$1'" >&2
+		exit 1
+	;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0
diff --git a/debian/librumpdev-audio0.postrm.linux b/debian/librumpdev-audio0.postrm.linux
new file mode 100644
index 00000000..8b481ba4
--- /dev/null
+++ b/debian/librumpdev-audio0.postrm.linux
@@ -0,0 +1,20 @@
+#!/bin/sh
+set -e
+
+case "$1" in
+	purge|remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
+		rm -f /etc/modprobe.d/rump_audio_blacklist.conf
+	;;
+
+	*)
+		echo "postrm called with unknown argument \`$1'" >&2
+		exit 1
+	;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0
diff --git a/debian/librumpdev-audio0.templates.linux b/debian/librumpdev-audio0.templates.linux
new file mode 100644
index 00000000..8fed3899
--- /dev/null
+++ b/debian/librumpdev-audio0.templates.linux
@@ -0,0 +1,11 @@
+Template: librumpdev-audio/linux-modules
+Type: multiselect
+Choices: ${CHOICES}
+Description: Linux modules to blacklist:
+ The audio hardware in your system is currently being used by the
+ following Linux audio driver modules. If you want to use your audio
+ hardware with Rump drivers, the corresponding Linux audio modules
+ need to be blacklisted.
+ .
+ The modules you select here will be automatically blacklisted after
+ next system reboot.