utils/ypr0tools/rockbox.sh

   1 #!/bin/sh
   2 ######################################################################
   3 #             __________               __   ___.
   4 #   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   5 #   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   6 #   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   7 #   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   8 #                     \/            \/     \/    \/            \/
   9 #
  10 #   * Samsung YP-R0 Rockbox as an application loader *
  11 #   Lorenzo Miori (C) 2011
  12 ######################################################################
  13
  14 # This is expected to be sourced by the shell, which is then
  15 # expected to run $MAINFILE
  16
  17 # Check for menu button being pressed. Return immediately to launch the OF
  18 var=$(dd if=/dev/r0Btn bs=4 count=1)
  19 # Here a workaround to detect the byte
  20 var2=$(echo -e -n "\x07")
  21
  22 if [[ "$var" = "$var2" ]]
  23 then
  24     return
  25 fi
  26
  27
  28 # Blank-Unblank video to get rid of Samsung BootLogo, but turn off backlight before to hide these things :)
  29 echo -n "0" > /sys/devices/platform/afe.0/bli
  30 echo -n "1" > /sys/class/graphics/fb0/blank
  31 echo -n "0" >> /sys/class/graphics/fb0/blank
  32
  33 amixer sset 'Soft Mute' 0
  34 amixer sset 'Master' 85%
  35
  36 # We set-up various settings for the cpu governor: default are
  37 # Every 1,5 s the kernel evaluates if it's the case to down/up clocking the cpu
  38 echo "ondemand" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
  39 echo "1" > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/ignore_nice_load
  40 echo "150000" > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate
  41 echo "95" > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold
  42
  43 # bind these two to the root so that they're writable
  44 mount --bind /mnt/media0/.rockbox /.rockbox
  45 mount --bind /mnt/media0/Playlists /Playlists
  46
  47 MAINFILE="/mnt/media0/.rockbox/rockbox"
  48 MAINFILE_ARGV=''
  49 MAINFILE_REDIRECT='>/dev/null 2>&1'