utils/ypr0tools/rockbox.sh

   1 ######################################################################
   2 #             __________               __   ___.
   3 #   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4 #   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5 #   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6 #   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7 #                     \/            \/     \/    \/            \/
   8 #
   9 #   * Samsung YP-R0 Rockbox as an application loader *
  10 #   Lorenzo Miori (C) 2011
  11 ######################################################################
  12
  13 # This is expected to be sourced by the shell, which is then
  14 # expected to run $MAINFILE
  15
  16 # Check for menu button being pressed. Return immediately to launch the OF
  17 var=$(dd if=/dev/r0Btn bs=4 count=1)
  18 # Here a workaround to detect the byte
  19 var2=$(echo -e -n "\x07")
  20
  21 if [[ "$var" = "$var2" ]]
  22 then
  23     return
  24 fi
  25
  26
  27 # Blank-Unblank video to get rid of Samsung BootLogo, but turn off backlight before to hide these things :)
  28 echo -n "0" > /sys/devices/platform/afe.0/bli
  29 echo -n "1" > /sys/class/graphics/fb0/blank
  30 echo -n "0" >> /sys/class/graphics/fb0/blank
  31
  32 amixer sset 'Soft Mute' 0
  33 amixer sset 'Master' 85%
  34
  35 # We set-up various settings for the cpu governor: default are
  36 # Every 1,5 s the kernel evaluates if it's the case to down/up clocking the cpu
  37 echo "ondemand" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
  38 echo "1" > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/ignore_nice_load
  39 echo "150000" > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate
  40 echo "95" > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold
  41
  42 # bind these two to the root so that they're writable
  43 mount --bind /mnt/media0/.rockbox /.rockbox
  44 mount --bind /mnt/media0/Playlists /Playlists
  45
  46 # replace Samsung's si470x.ko with our si4709.ko to support fm radio
  47 if [ -e /lib/modules/si4709.ko ]
  48 then
  49   rmmod /lib/modules/si470x.ko
  50   insmod /lib/modules/si4709.ko
  51 fi
  52
  53 MAINFILE="/mnt/media0/.rockbox/rockbox"
  54 MAINFILE_ARGV=''
  55 MAINFILE_REDIRECT='>/dev/null 2>&1'