linux: build and install 'cpupower' tool, set cpu to 'fullpower' on boot and to 'ondemand' after boot finished

Signed-off-by: Stephan Raue <stephan@openelec.tv>

packages/linux/build

@@ -51,3 +51,14 @@ rm -f modules/lib/modules/*/build
 rm -f modules/lib/modules/*/source
 
 make $KERNEL_IMAGE
+
+( cd tools/power/cpupower
+
+  export CFLAGS="$TARGET_CFLAGS -I$SYSROOT_PREFIX/usr/include"
+  export LDFLAGS="$TARGET_LDFLAGS -L$SYSROOT_PREFIX/lib -L$SYSROOT_PREFIX/usr/lib"
+
+  make CROSS="$TARGET_PREFIX" \
+       V=1 \
+       DEBUG=false \
+       NLS=false \
+)

packages/linux/init.d/01_cpupower

@@ -0,0 +1,28 @@
+################################################################################
+#      Copyright (C) 2009-2010 OpenELEC.tv
+#      http://www.openelec.tv
+#
+#  This Program 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 2, or (at your option)
+#  any later version.
+#
+#  This Program 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 OpenELEC.tv; see the file COPYING.  If not, write to
+#  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+#  http://www.gnu.org/copyleft/gpl.html
+################################################################################
+
+#
+# set cpupower to 'performance'
+#
+# runlevels: openelec, textmode
+
+progress "set cpu's to full power"
+
+  cpupower frequency-set -g performance

packages/linux/install

@@ -46,3 +46,8 @@ mkdir -p $INSTALL/etc
 mkdir -p $INSTALL/etc/modprobe.d
   cp $PKG_DIR/modprobe.d/*.conf $INSTALL/etc/modprobe.d
 
+mkdir -p $INSTALL/usr/lib
+  cp -P $PKG_BUILD/tools/power/cpupower/libcpupower.so* $INSTALL/usr/lib
+
+mkdir -p $INSTALL/usr/bin
+  cp -P $PKG_BUILD/tools/power/cpupower/cpupower $INSTALL/usr/bin

packages/linux/meta

@@ -25,8 +25,8 @@ PKG_ARCH="any"
 PKG_LICENSE="GPL"
 PKG_SITE="http://www.kernel.org"
 PKG_URL="http://www.kernel.org/pub/linux/kernel/v3.0/testing/$PKG_NAME-$PKG_VERSION.tar.bz2"
-PKG_DEPENDS="busybox linux-drivers linux-firmware"
+PKG_DEPENDS="busybox linux-drivers linux-firmware pciutils"
-PKG_BUILD_DEPENDS="toolchain busybox-hosttools xz cpio"
+PKG_BUILD_DEPENDS="toolchain busybox-hosttools xz cpio pciutils"
 PKG_PRIORITY="optional"
 PKG_SECTION="linux"
 PKG_SHORTDESC="linux26: The Linux kernel 2.6 precompiled kernel binary image and modules"

packages/mediacenter/xbmc/init.d/93_xbmc

@@ -52,6 +52,12 @@ fi
 # waiting for Xorg to start
   wait_for_xorg
 
+# set cpu's to 'on demand'
+  ( usleep 15000000
+    progress "set cpu's to 'on demand'"
+    cpupower frequency-set -g ondemand
+  )&
+
 # starting XBMC
   while true; do