koreader/platform/kobo/nickel.sh

#!/bin/sh
PATH="/sbin:/bin:/usr/sbin:/usr/bin:/usr/lib"

# Handle the rotation weirdness on some devices
cur_rotate="$(cat "/sys/class/graphics/fb0/rotate")"

# start fmon again. Note that we don't have to worry about reaping this, nickel kills on-animator.sh on start.
(
    usleep 400000
    /etc/init.d/on-animator.sh
) &

# environment needed by nickel, from /etc/init.d/rcS:

if [ ! -n "${WIFI_MODULE_PATH}" ]; then
    INTERFACE="wlan0"
    WIFI_MODULE="ar6000"
    if [ "${PLATFORM}" != "freescale" ]; then
        INTERFACE="eth0"
        WIFI_MODULE="dhd"
    fi
    export INTERFACE
    export WIFI_MODULE
    export WIFI_MODULE_PATH="/drivers/${PLATFORM}/wifi/${WIFI_MODULE}.ko"
fi

export NICKEL_HOME="/mnt/onboard/.kobo"
export LD_LIBRARY_PATH="/usr/local/Kobo"

export LANG="en_US.UTF-8"

# Make sure we kill the WiFi first, because nickel apparently doesn't like it if it's up... (cf. #1520)
# NOTE: That check is possibly wrong on PLATFORM == freescale (because I don't know if the sdio_wifi_pwr module exists there), but we don't terribly care about that.
if lsmod | grep -q sdio_wifi_pwr; then
    killall udhcpc default.script wpa_supplicant 2>/dev/null
    wlarm_le -i ${INTERFACE} down
    ifconfig ${INTERFACE} down
    # NOTE: Kobo's busybox build is weird. rmmod appears to be modprobe in disguise, defaulting to the -r flag. If re-specifying -r starts to fail one day, switch to rmmod without args, or modprobe -r.
    rmmod -r ${WIFI_MODULE}
    rmmod -r sdio_wifi_pwr
fi

# Flush buffers to disk, who knows.
sync

# start nickel again (inspired from KSM, vlasovsoft & the base rcS), this should
# cover at least firmware versions from 2.6.1 to 3.12.1 (tested on a kobo
# mini with 3.4.1 firmware & a H2O on 3.12.1)

# NOTE: Since we're not cold booting, this is technically redundant... On the other hand, it doesn't really hurt either ;).
(
    /usr/local/Kobo/pickel disable.rtc.alarm

    if [ ! -e "/etc/wpa_supplicant/wpa_supplicant.conf" ]; then
        cp "/etc/wpa_supplicant/wpa_supplicant.conf.template" "/etc/wpa_supplicant/wpa_supplicant.conf"
    fi

    # FWIW, that appears to be gone from recent rcS scripts. AFAICT, still harmless, though.
    echo 1 >"/sys/devices/platform/mxc_dvfs_core.0/enable"

    /sbin/hwclock -s -u
) &

# Hey there, nickel!
if [ ! -e "/usr/local/Kobo/platforms/libkobo.so" ]; then
    export QWS_KEYBOARD="imx508kbd:/dev/input/event0"
    export QT_PLUGIN_PATH="/usr/local/Kobo/plugins"
    if [ -e "/usr/local/Kobo/plugins/gfxdrivers/libimxepd.so" ]; then
        export QWS_DISPLAY="imxepd"
    else
        export QWS_DISPLAY="Transformed:imx508:Rot90"
        export QWS_MOUSE_PROTO="tslib_nocal:/dev/input/event1"
    fi
    # NOTE: Send the output to the void, to avoid spamming the shell with the output of the string of killall commands they periodically send
    /usr/local/Kobo/hindenburg >/dev/null 2>&1 &
    /usr/local/Kobo/nickel -qws -skipFontLoad >/dev/null 2>&1 &
else
    /usr/local/Kobo/hindenburg >/dev/null 2>&1 &
    lsmod | grep -q lowmem || insmod "/drivers/${PLATFORM}/misc/lowmem.ko" &
    if grep -q "dhcpcd=true" "/mnt/onboard/.kobo/Kobo/Kobo eReader.conf"; then
        dhcpcd -d -t 10 &
    fi
    /usr/local/Kobo/nickel -platform kobo -skipFontLoad >/dev/null 2>&1 &
fi

# Ahoy, annoying sickel!
if [ -x /usr/local/Kobo/sickel ]; then
    /usr/local/Kobo/sickel -platform kobo:noscreen >/dev/null 2>&1 &
fi

# Rotation weirdness, part II
echo "${cur_rotate}" >"/sys/class/graphics/fb0/rotate"
# shellcheck disable=SC2094
cat "/sys/class/graphics/fb0/rotate" >"/sys/class/graphics/fb0/rotate"

# Handle sdcard
if [ -e "/dev/mmcblk1p1" ]; then
    echo sd add /dev/mmcblk1p1 >>/tmp/nickel-hardware-status &
fi

return 0