Updated on March 21, 2023

The Application Demo Code for 3 kinds of Core Control Units on UCP

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The Core Control Unit  and Core Switch Unit on UCP

  • The OpenVox UCP platform supports three types of CCU boards.

CCU-N-BAYL: CPU model J1900/N2930.

CCU-N-GML: CPU model N4120.

CCU-I-KABYLR: CPU model I5 8250U.

After each CCU board is installed into the UCP chassis, one of 3 network interfaces is accessed through the backplane to the ETH interface of the Core Switch Unit (CSU), and the other two network interfaces are displayed on the front panel, WAN and LAN, respectively.

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  • The UCP supports two types of CSU boards, the 100M Switching Board CSU-F and the 1000M Switching Board (CSU-G):

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The correspondence between the network interface of the CCU board and the panel silkscreen

For historical reasons, the three motherboards were not designed with the order of the network interfaces (eth0, eth1, eth2) and the panel silkscreen (WAN, LAN, CSU-ETH) in mind, resulting in some confusion when configuring the network interfaces in the operating system, as shown in the following figure.

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CCU-N-BAYL: the network interface on the CSU corresponds to eth0, and the WAN and LAN correspond to eth1 and eth2.

CCU-N-GML: the network interface on the CSU corresponds to eth1, and the WAN and LAN correspond to eth2 and eth0.

CCU-I-KABYLR: the network interface on the CSU corresponds to eth2, and the WAN and LAN correspond to eth0 and eth1.

The Demo Code for 3 kinds of Core Control Units on UCP

In order to allow users to better understand and use these three motherboards, we will provide some simple demo codes to show you how to identify and configure the network and reset buttons on the motherboard, as well as to perform UCP slot number identification.

  • CPU model identification, NIC and silkscreen matching settings, reset button, and slot number identification on the motherboard

/usr/sbin/base.sh

#!/bin/bash

############## UCP 3 cpu models check ##########################

function is_i5_8250U_cpu()
{
    CPU=`cat /proc/cpuinfo | grep "model name" | cut -f2 -d: | uniq |grep "i5-8250U"`
    if [ "x${CPU}" != "x" ]; then 
        echo 1 
    else
        echo 0
    fi
}

function is_n4120_cpu()
{
    CPU=`cat /proc/cpuinfo | grep "model name" | cut -f2 -d: | uniq |grep "N4120"`
    if [ "x${CPU}" != "x" ]; then 
        echo 1 
    else
        echo 0
    fi
}

function is_j1900_cpu()
{
    CPU=`cat /proc/cpuinfo | grep "model name" | cut -f2 -d: | uniq |grep "J1900"`
    if [ "x${CPU}" != "x" ]; then 
        echo 1 
    else
        echo 0
    fi
}

function is_n2930_cpu()
{
    CPU=`cat /proc/cpuinfo | grep "model name" | cut -f2 -d: | uniq |grep "N2930"`
    if [ "x${CPU}" != "x" ]; then 
        echo 1 
    else
        echo 0
    fi
}

function is_network_config_null()
{
    nic_config=`ls -l /etc/sysconfig/network-scripts | grep ifcfg-eth`
    if [ "x${nic_config}" != "x" ]; then 
        echo 0 
    else
        echo 1
    fi
}

############## UCP RST key and Network  ##########################

    IS_I5_8250U_CPU=$(is_i5_8250U_cpu)
    if [ "x${IS_I5_8250U_CPU}" = "x1" ]; then
        GPIO_RST_KEY=444
        
        GPIO_BOARDID0=378
        GPIO_BOARDID1=379
        GPIO_BOARDID2=380
        GPIO_BOARDID3=381
        
        NIC_WAN="eth0"
        NIC_LAN="eth1"
        NIC_BACK="eth2"
        CPU_MODEL="i5-8250U"

        IS_UCP=1
    fi
    IS_N4120_CPU=$(is_n4120_cpu)
    if [ "x${IS_N4120_CPU}" = "x1" ]; then
        GPIO_RST_KEY=415
        
        GPIO_BOARDID0=421
        GPIO_BOARDID1=422
        GPIO_BOARDID2=414
        GPIO_BOARDID3=413
        
        NIC_WAN="eth2"
        NIC_LAN="eth0"
        NIC_BACK="eth1"
        CPU_MODEL="N4120"

        IS_UCP=1
    fi
    IS_J900_CPU=$(is_j1900_cpu)
    if [ "x${IS_J900_CPU}" = "x1" ]; then
        GPIO_RST_KEY=361
        
        GPIO_BOARDID0=465
        GPIO_BOARDID1=467
        GPIO_BOARDID2=468
        GPIO_BOARDID3=469
        
        NIC_WAN="eth1"
        NIC_LAN="eth2"
        NIC_BACK="eth0"
        CPU_MODEL="J1900"

        IS_UCP=1
    fi

    IS_N2930_CPU=$(is_n2930_cpu)
    if [ "x${IS_N2930_CPU}" = "x1" ]; then
        GPIO_RST_KEY=361
        
        GPIO_BOARDID0=465
        GPIO_BOARDID1=467
        GPIO_BOARDID2=468
        GPIO_BOARDID3=469
        
        NIC_WAN="eth1"
        NIC_LAN="eth2"
        NIC_BACK="eth0"
        CPU_MODEL="N2930"

        IS_UCP=1
    fi
    
NIC_NUM=`ls /sys/class/net |grep -v lo | grep -v dummy0 | wc -l`

############# check UCP Slot ID ##########################
    
    if [ "x$IS_UCP" = "x1" ];then
        GPIO_PORTS="$GPIO_RST_KEY $GPIO_BOARDID0 $GPIO_BOARDID1 $GPIO_BOARDID2 $GPIO_BOARDID3"
        for port in ${GPIO_PORTS};do
            if [ -f "/sys/class/gpio/gpio${port}/direction" ]; then
                echo "GPIO ${port} enabled"
            else
                echo $port > /sys/class/gpio/export
                echo in > /sys/class/gpio/gpio${port}/direction
            fi
        done
        
        BITS0=$(cat /sys/class/gpio/gpio${GPIO_BOARDID0}/value)
        BITS1=$(cat /sys/class/gpio/gpio${GPIO_BOARDID1}/value)
        BITS2=$(cat /sys/class/gpio/gpio${GPIO_BOARDID2}/value)
        BITS3=$(cat /sys/class/gpio/gpio${GPIO_BOARDID3}/value)
        
        BOARD_SLOT_NO=$((($BITS3 << 3) | ($BITS2 << 2) | ($BITS1 << 1) | $BITS0))
        if [ $BOARD_SLOT_NO -lt 3 ]; then
            BOARD_SLOT_NO=$(( $BOARD_SLOT_NO + 1 ))
        fi
    else
        NIC_WAN="eth0"
        NIC_LAN="eth1"
        NIC_BACK="eth2"
        BOARD_SLOT_NO="none"
        GPIO_RST_KEY="none"
        IS_UCP=0
    fi

echo -ne "is ucp            : ${IS_UCP}\n" 
echo -ne "CPU model         : ${CPU_MODEL}\n" 
echo -ne "NIC number        : ${NIC_NUM}\n" 
echo -ne "wan NIC name      : ${NIC_WAN}\n" 
echo -ne "lan NIC name      : ${NIC_LAN}\n" 
echo -ne "back NIC name     : ${NIC_BACK}\n" 
echo -ne "gpio slot number  : ${BOARD_SLOT_NO}\n" 
echo -ne "gpio reset key    : ${GPIO_RST_KEY}\n"

The variables obtained above will be used frequently in later practical applications.

The output of this script after execution is shown as follows.

ucp output

 

 

 

 

 

 

  • Easy-to-use network configuration tool
#!/bin/bash

#### Source the base.sh to get the variables
. /usr/sbin/base.sh

NIC_DIR=/etc/sysconfig/network-scripts
WAN_CFG=$NIC_DIR/ifcfg-$NIC_WAN
LAN_CFG=$NIC_DIR/ifcfg-$NIC_LAN
BACK_CFG=$NIC_DIR/ifcfg-$NIC_BACK

function usage()
{
    echo "Usage:"
    echo -e "t $0 setip static addr netmask gateway wan|lan|back"
    echo -e "t $0 setip dhcp wan|lan|back"
    echo -e "t $0 setdns addr"
    echo -e "t $0 reset network|all"
    echo -e "t"
}

if [ "$#" -eq "2"  -o "$#" -eq "3" -o "$#" -eq "6" ]; then
    echo ""
else
    usage `basename $0`
    exit 1
fi

case "$1" in
###Set the IP mode to Static or DHCP
    setip)
    if [ x"$2" = x"static" ];then
        addr=$3
        netmask=$4
        gateway=$5
        nic=$6
        if [ x"$nic" = x"wan" -o  x"$nic" = x"lan" -o  x"$nic" = x"back" ];then
            if [ x"$nic" = x"wan" ]; then
                nic_dev=$NIC_WAN
            elif [ x"$nic" = x"lan" ]; then
                nic_dev=$NIC_LAN
            else
                nic_dev=$NIC_BACK
            fi
        {	
            echo "TYPE=Ethernet"
            echo "PROXY_METHOD=none"
            echo "BROWSER_ONLY=no"
            echo "BOOTPROTO=none"
            echo "ONBOOT=yes"
            echo "NAME=$nic_dev"
            echo "DEVICE=$nic_dev"
            echo "IPADDR=$addr"
            echo "NETMASK=$netmask"
            echo "GATEWAY=$gateway"
            echo "NM_CONTROLLED=no"
            echo -e "n"             

        }>$NIC_DIR/ifcfg-$nic_dev
        echo "IP Changed Successfully! Rebooting now ..."
        /sbin/reboot
        else
            echo "NIC device $nic does not exist! NIC DevName must be wan, lan or back, please check and try again!"
            exit
        fi

    elif [ x"$2" = x"dhcp" ];then
        nic=$3
        if [ x"$nic" = x"wan" -o  x"$nic" = x"lan" -o  x"$nic" = x"back" ];then
            if [ x"$nic" = x"wan" ]; then
                nic_dev=$NIC_WAN
            elif [ x"$nic" = x"lan" ]; then
                nic_dev=$NIC_LAN
            else
                nic_dev=$NIC_BACK
            fi
                {   
                    echo "TYPE=Ethernet"
                    echo "PROXY_METHOD=none"
                    echo "BROWSER_ONLY=no"
                    echo "BOOTPROTO=dhcp"
                    echo "ONBOOT=yes"
                    echo "NAME=$nic_dev"
                    echo "DEVICE=$nic_dev"
                    echo "NM_CONTROLLED=no"
                    echo -e "n"            
                
                }>$NIC_DIR/ifcfg-$nic_dev
                echo "IP Changed Successfully! Rebooting now ..."
                /sbin/reboot
        else
                echo "NIC device $nic does not exist! NIC DevName must be wan, lan or back, please check and try again!"
                exit
        fi
    else
        echo "NIC Mode is incorrect! It must be dhcp or static, please check and try again!"
        exit
    fi
    ;;

### Set the DNS
    	setdns)
        if [ x"$2" != x"" ];then
                addr=$2
                {
                        echo "nameserver $addr"
                        echo "nameserver 8.8.8.8"
                        echo -e "n"             

                }>/etc/resolv.conf
                echo "DNS Changed Successfully! Rebooting now ..."
                /sbin/reboot
                else
                        echo "DNS server is null, please input a DNS server address!"
                        exit
                fi	
        ;;

### The API for reset action and other actions defined by users
    reset)		
### After networking reset, the IP address of ETH on CSU board will be 172.16.80.x/255.255.0.0, x is slot ID, WAN and LAN will be DHCP
        if [ x"$2" = x"network" ];then
            echo "Reset Network setttings to factory default ..."
            rm $NIC_DIR/ifcfg-eth* -rf

            if [ x"$NIC_WAN"  != x""  ]; then

                {
                    echo "TYPE=Ethernet"
                    echo "PROXY_METHOD=none"
                    echo "BROWSER_ONLY=no"
                    echo "BOOTPROTO=dhcp"
                    echo "ONBOOT=yes"
                    echo "NAME=$NIC_WAN"
                    echo "DEVICE=$NIC_WAN"
                    echo "NM_CONTROLLED=no"
                    echo -e "n"              

                } > $WAN_CFG
            fi

            if [ x"$NIC_LAN"  != x""  ]; then
                {
                    echo "TYPE=Ethernet"
                    echo "PROXY_METHOD=none"
                    echo "BROWSER_ONLY=no"
                    echo "BOOTPROTO=dhcp"
                    echo "ONBOOT=yes"
                    echo "NAME=$NIC_LAN"
                    echo "DEVICE=$NIC_LAN"
                    echo "NM_CONTROLLED=no"
                    echo -e "n"             

                } > $LAN_CFG
            fi

            if [ x"$NIC_BACK"  != x""  ]; then

                {
                    echo "TYPE=Ethernet"
                    echo "PROXY_METHOD=none"
                    echo "BROWSER_ONLY=no"
                    echo "BOOTPROTO=none"
                    echo "ONBOOT=yes"
                    echo "NAME=$NIC_BACK"
                    echo "DEVICE=$NIC_BACK"
                    echo "IPADDR=172.16.80.${BOARD_SLOT_NO}"
                    echo "NETMASK=255.255.0.0"
                    echo "NM_CONTROLLED=no"
                    echo -e "n"              

                } > $BACK_CFG
            fi

                {
                        echo "nameserver 8.8.8.8"
                        echo "nameserver 1.2.4.8"
                        echo -e "n"             

                }>/etc/resolv.conf
                        echo "Networking is factory default now! Rebooting  ..."
                        /sbin/reboot

        elif [ x"$2" = x"all" ];then
            echo "Reset System to factory default ..."
##Customized script for Reset action, defined by users
                                #/usr/sbin/CUSTOM_SCRIPT

            echo "Reset Network setttings to factory default ..."
            rm $NIC_DIR/ifcfg-* -rf

            if [ x"$NIC_WAN"  != x""  ]; then

                {
                    echo "TYPE=Ethernet"
                    echo "PROXY_METHOD=none"
                    echo "BROWSER_ONLY=no"
                    echo "BOOTPROTO=dhcp"
                    echo "ONBOOT=yes"
                    echo "NAME=$NIC_WAN"
                    echo "DEVICE=$NIC_WAN"
                    echo "NM_CONTROLLED=no"
                    echo -e "n"              

                } > $WAN_CFG
            fi

            if [ x"$NIC_LAN"  != x""  ]; then
                {
                    echo "TYPE=Ethernet"
                    echo "PROXY_METHOD=none"
                    echo "BROWSER_ONLY=no"
                    echo "BOOTPROTO=dhcp"
                    echo "ONBOOT=yes"
                    echo "NAME=$NIC_LAN"
                    echo "DEVICE=$NIC_LAN"
                    echo "NM_CONTROLLED=no"
                    echo -e "n"             

                } > $LAN_CFG
            fi

            if [ x"$NIC_BACK"  != x""  ]; then

                {
                    echo "TYPE=Ethernet"
                    echo "PROXY_METHOD=none"
                    echo "BROWSER_ONLY=no"
                    echo "BOOTPROTO=none"
                    echo "ONBOOT=yes"
                    echo "NAME=$NIC_BACK"
                    echo "DEVICE=$NIC_BACK"
                    echo "IPADDR=172.16.80.${BOARD_SLOT_NO}"
                    echo "NETMASK=255.255.0.0"
                    echo "NM_CONTROLLED=no"
                    echo -e "n"              

                } > $BACK_CFG
            fi

                {
                        echo "nameserver 8.8.8.8"
                        echo "nameserver 1.2.4.8"
                        echo -e "n"             

                }>/etc/resolv.conf
                        echo "Networking is factory default now! Rebooting  ..."
                        /sbin/reboot

        else
                    echo "Reset nothing! Please check what you want to reset, network or all?"
                    exit
        fi
        ;;	
    *)
        usage `basename $0`                                   
        	exit 1 

esac
  • RESET button identification and function definition
#!/bin/bash
#### Source the base.sh to get the variables
. /usr/sbin/base.sh

### Check the GOIP type, it is different between Old and New versions of Linux Kernel
function init_rstkey()
{
    if [ -f /sys/class/gpio/export ]; then 
        echo "Old GPIO TYPE!"
        GPIO_PIN=${GPIO_RST_KEY}
        GPIO_PATH="/sys/class/gpio/gpio${GPIO_PIN}/direction"
        echo ${GPIO_PIN} > /sys/class/gpio/unexport
        sleep 1
        echo ${GPIO_PIN} > /sys/class/gpio/export 
        echo in > $GPIO_PATH

    elif [ -c /dev/gpiochip0 ]; then
        echo "New GPIO TYPE!"
    else
        echo "GPIO not found!" 
        exit
    fi

}

### Read the state of Reset GPIO key 
function read_rstkey()
{   
    if [ -f /sys/class/gpio/export ]; then
        RSTKEY_STATE=`cat /sys/class/gpio/gpio${GPIO_PIN}/value`
    fi

    if [ -c /dev/gpiochip0 ]; then
        RSTKEY_STATE=`gpioget 0 10`
    fi
}

### Define the Flags of short and long Press
function check_rstkey()
{
while :
  do
        sleep 0.5
        read_rstkey
        S_FLAG=0
        L_FLAG=0
        
        if [ x"${RSTKEY_STATE}" = x"0" ]; then
            S_FLAG=1
            sleep 3
            read_rstkey
            if [ x"${RSTKEY_STATE}" != x"0" ]; then
                L_FLAG=0
                break
            else
                sleep 3
                read_rstkey
                if [ "x${RSTKEY_STATE}" != x"0" ]; then
                        L_FLAG=0
                        break
                else
                        L_FLAG=1
                        S_FLAG=0
                        break
                fi
            fi
        fi
  done
}


function main()
{
        init_rstkey
        check_rstkey
#        echo "S_FLAG: $S_FLAG"
#        echo "L_FLAG: $L_FLAG"

## Short Press is poweroff and Long press is reset
        if [ "${S_FLAG}" = "1" ]; then  
                echo "`date` Power Key triggered, Power off System now ..." 
                sleep 0.5
                #poweroff                
        else
                echo "`date` Reset Key triggered, Restore System Settings ...." 
                sleep 0.5
                #/usr/sbin/custom_reset_script
        fi

}

main

The above demo codes basically demonstrate how to use the hardware functions of the UCP CCU board, and users are free to develop their own programs based on it.

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