示例#1
0
        /// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
        /// <summary>
        /// Gets the port value
        ///
        /// This is really just doing the equivalent of a shell command
        ///    echo <value_as_string> > /sys/class/gpio/gpio<gpioID>/value
        ///
        /// </summary>
        /// <returns>true or false - the ports value</returns>
        /// <history>
        ///    28 Aug 14 Cynic - Originally written
        /// </history>
        public bool Read()
        {
            string outStr = System.IO.File.ReadAllText(BBBDefinitions.SYSFS_GPIODIR + BBBDefinitions.SYSFS_GPIODIRNAMEBASE + GpioUtils.GpioIDToString(GpioID) + "/" + BBBDefinitions.SYSFS_GPIOVALUE);

            if (outStr.Trim() == "0")
            {
                return(false);
            }
            else
            {
                return(true);
            }
        }
示例#2
0
        /// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
        /// <summary>
        /// Sets the port value
        ///
        /// This is really just doing the equivalent of a shell command
        ///    echo <value_as_string> > /sys/class/gpio/gpio<gpioID>/value
        ///
        /// </summary>
        /// <param name="valueToSet>the value to set/param>
        /// <history>
        ///    28 Aug 14 Cynic - Originally written
        /// </history>
        public void Write(bool valueToSet)
        {
            string valueStr;

            if (valueToSet == true)
            {
                valueStr = "1";
            }
            else
            {
                valueStr = "0";
            }
            // set the value now
            System.IO.File.WriteAllText(BBBDefinitions.SYSFS_GPIODIR + BBBDefinitions.SYSFS_GPIODIRNAMEBASE + GpioUtils.GpioIDToString(GpioID) + "/" + BBBDefinitions.SYSFS_GPIOVALUE, valueStr);
        }
示例#3
0
文件: Port.cs 项目: valoni/BBBCSIO
 /// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
 /// <summary>
 /// Constructor
 /// </summary>
 /// <param name="gpioIDIn">The gpio we open the port on</param>
 /// <history>
 ///    28 Aug 14  Cynic - Originally written
 /// </history>
 public Port(GpioEnum gpioIDIn)
 {
     // set our GpioConfig object now
     gpioCfgObject = GpioUtils.GetGpioConfigForGpio(gpioIDIn);
 }
示例#4
0
 /// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
 /// <summary>
 /// Closes the port. Throws an exception on failure, including if the port is
 /// already closed
 ///
 /// This is really just doing the equivalent of a shell command
 ///    echo <gpioID> > /sys/class/gpio/unexport
 ///  after which the /sys/class/gpio/gpio<gpioID> directory should not exist.
 ///
 /// </summary>
 /// <history>
 ///    28 Aug 14 Cynic - Originally written
 /// </history>
 public override void ClosePort()
 {
     // do the close
     System.IO.File.WriteAllText(BBBDefinitions.SYSFS_GPIODIR + BBBDefinitions.SYSFS_GPIOUNEXPORT, GpioUtils.GpioIDToString(GpioID));
 }
示例#5
0
        // #########################################################################
        // ### Port Manipulation Code
        // #########################################################################
        #region

        /// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
        /// <summary>
        /// Opens the port. Throws an exception on failure, including if the port is
        /// already open.
        ///
        /// This is really just doing the equivalent of a shell command
        ///    echo <gpioID> > /sys/class/gpio/export
        ///  after which the /sys/class/gpio/gpio<gpioID> directory should exist.
        ///  If it already exists the port is in use by someone else
        ///
        /// </summary>
        /// <history>
        ///    28 Aug 14 Cynic - Originally written
        /// </history>
        protected override void OpenPort()
        {
            // some tests
            if (GpioID == GpioEnum.GPIO_NONE)
            {
                throw new Exception("Cannot open port. Invalid port: " + GpioID.ToString());
            }
            // do the open
            System.IO.File.WriteAllText(BBBDefinitions.SYSFS_GPIODIR + BBBDefinitions.SYSFS_GPIOEXPORT, GpioUtils.GpioIDToString(GpioID));
        }
示例#6
0
        /// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
        /// <summary>
        /// Sets the port direction at the SysFs level
        ///
        /// This is really just doing the equivalent of a shell command
        ///    echo <direction_as_string> > /sys/class/gpio/gpio<gpioID>/direction
        ///
        /// </summary>
        /// <param name="portDirIn">the port direction INPUT/OUTPUT</param>
        /// <history>
        ///    28 Aug 14 Cynic - Originally written
        /// </history>
        protected void SetSysFsDirection()
        {
            string dirStr;

            if (PortDirection() == PortDirectionEnum.PORTDIR_INPUT)
            {
                dirStr = "in";
            }
            else if (PortDirection() == PortDirectionEnum.PORTDIR_OUTPUT)
            {
                dirStr = "out";
            }
            else
            {
                // should never happen
                throw new Exception("unknown port direction:" + PortDirection().ToString());
            }
            // set the direction now
            System.IO.File.WriteAllText(BBBDefinitions.SYSFS_GPIODIR + BBBDefinitions.SYSFS_GPIODIRNAMEBASE + GpioUtils.GpioIDToString(GpioID) + "/" + BBBDefinitions.SYSFS_GPIODIRECTION, dirStr);
        }