Subversion Repositories group.electronics

using MCP2221;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Reflection;

using System.Text;

using System.Threading.Tasks;

using System.Timers;

using WindowsInput;

using WindowsInput.Native;

namespace nitdcscore {

    public struct devdata {

        public uint prev_input;

        public uint cur_input;

        public ushort cur_adc;

        public ushort prev_adc;

        public ushort max_adc;

        public ushort adc_thres;

        public int id;

        public string name;

        public string function;

    }

    public class mcp2221 {

        DcsBios bios = new DcsBios();

        MchpUsbI2c usbi2c = new MchpUsbI2c();

        public Boolean hasAHFS { get; set; }

        public Boolean hasAAP { get; set; }

        int idx { get; set; }

        int devcount { get; set; }

        long dummy = 0;

        public uint speed { get; set; }

        Timer refresh = new Timer();

        Timer delay = new Timer();

        InputSimulator sendkey = new InputSimulator();

        private readonly Object lockobject = new object();

        public devdata[] devices = new devdata[5];

        public mcp2221() {

            speed = 400000;

            idx = 0;

            refresh.Interval = 70;

            refresh.AutoReset = true;

            refresh.Elapsed += refresh_Elapsed;

            refresh.Enabled = false;

            delay.Interval = 5;

            delay.AutoReset = false;

            delay.Elapsed += delay_Elapsed;

            delay.Enabled = false;

            bios.InitUDP();

            usbi2c.Settings.GetConnectionStatus();

            devcount = usbi2c.Management.GetDevCount();

            Console.WriteLine(devcount.ToString() + " devices found");

            for (int i = 0; i < devcount; i++) {

                int rslt = usbi2c.Management.SelectDev(i);

                usbi2c.Settings.GetConnectionStatus();

                string usbDescriptor = this.usbi2c.Settings.GetUsbStringDescriptor();

                if (usbDescriptor == "AHCP/FSCP Panel") {

                    this.hasAHFS = true;

                    devices[i].cur_input = 0;

                    devices[i].prev_input = 0;

                    devices[i].cur_adc = 0;

                    devices[i].max_adc = 930;

                    devices[i].adc_thres = 15;

                    devices[i].id = i;

                    devices[i].name = "AHCP/FSCP Panel";

                    devices[i].function = "refresh_ahfs";

                    init_ahfs(i);

                } else if (usbDescriptor == "AAP Panel") {

                    this.hasAAP = true;

                    devices[i].cur_input = 0;

                    devices[i].prev_input = 0;

                    devices[i].prev_adc = 0;

                    devices[i].id = i;

                    devices[i].name = "AAP Panel";

                    devices[i].function = "refresh_aap";

                    init_aap(i);

                }

            }

        }

        private Boolean enabled;

        public Boolean Enabled {

            get {

                return enabled;

            }

            set {

                if (this.devcount == 0)

                    return;

                this.enabled = true;

                refresh.Enabled = true;

            }

        }

        void delay_Elapsed(object sender, ElapsedEventArgs e) {

            delay.Enabled = false;

        }

        void delayms(double ms = 100) {

            delay.Interval = ms;

            delay.Enabled = true;

            dummy = 0;

            while (delay.Enabled) { dummy++; }

        }

        void refresh_Elapsed(object sender, ElapsedEventArgs e) {

            if (!Enabled)

                return;

            devdata dev = devices[idx];

            usbi2c.Management.SelectDev(dev.id);

            usbi2c.Settings.GetConnectionStatus();

            Type type = this.GetType();

            MethodInfo callfunc = type.GetMethod(dev.function);

            ParameterInfo[] parameters = callfunc.GetParameters();

            object[] parms = { idx };

            callfunc.Invoke(this, parms);

            idx++;

            if (idx >= devcount)

                idx = 0;

        }

        public void init_aap(int devid) {

            // Enable the mcp23017

            WriteGpio(3, 0);

            this.delayms(500);

            this.WriteGpio(3, 1);

            this.delayms();

            // Set io dir, pullups and rev polarity

            byte[] data;

            data = new byte[] { 0x00, 0xff, 0xff, 0xff, 0xff }; // All inputs & polarity

            WriteI2cData(0x40, data, 5);

            data = new byte[] { 0x0c, 0xff, 0xff }; // All pullups = on

            WriteI2cData(0x40, data, 3);

            refresh_aap(devid);

            devices[devid].prev_input = devices[devid].cur_input;

        }

        public void refresh_aap(int devid) {

            refresh.Enabled = false;

            lock (lockobject) {

                byte[] data;

                data = new byte[] { 0x12 }; // Select GPIOA register

                WriteI2cData(0x40, data, 1);

                data = new byte[] { 0x00, 0x00 }; // Read two bytes

                int rslt = ReadI2CData(0x41, ref data, 2);

                // Join all our buttons into a single inputs

                uint gpio = (uint)((1 - ReadGpio(0)) | ((1 - ReadGpio(1)) << 1));

                devices[devid].cur_input = (uint)gpio << 16;

                devices[devid].cur_input |= (uint)data[0] << 8;

                devices[devid].cur_input |= (uint)data[1];

                if (devices[devid].cur_input != devices[devid].prev_input) {

                    this.input_aap(devid);

                    devices[devid].prev_input = devices[devid].cur_input;

                }

            }

            refresh.Enabled = enabled;

        }

        public void input_aap(int devid) {

            //

            Switch2Pos(11, "AAP_CDUPWR", devid);

            //

            Switch2Pos(10, "AAP_EGIPWR", devid);

            //

            Switch3Pos(9, 8, "AAP_STEER", devid);

            //

            Selector(new int[] { 6, 5, 4 }, "AAP_STEERPT", devid);

            //

            Selector(new int[] {0,1,2,3}, "AAP_PAGE", devid);

        }

        public void init_ahfs(int devid) {

            WriteGpio(3, 0);

            this.delayms(500);

            // Enable the mcp23017

            WriteGpio(3, 1);

            this.delayms();

            // Set io dir, pullups and rev polarity

            byte[] data;

            // Soldered a couple of inputs wrong, the f0 is to reverse them (fuel boost switches)

            data = new byte[] { 0x00, 0xff, 0xff, 0xf0, 0xff }; // All inputs & polarity

            WriteI2cData(0x40, data, 5);

            data = new byte[] { 0x0c, 0xff, 0xff }; // All pullups = on

            WriteI2cData(0x40, data, 3);

            data = new byte[] { 0x00, 0xff, 0xff, 0xff, 0xff }; // All inputs & polarity

            WriteI2cData(0x42, data, 5);

            data = new byte[] { 0x0c, 0xff, 0xff }; // All pullups = on

            WriteI2cData(0x42, data, 3);

            // Get the initial ADC value

            devices[devid].prev_adc = devices[devid].cur_adc = ReadADC(1);

            refresh_ahfs(devid);

            devices[devid].prev_input = devices[devid].cur_input;

        }

        public void refresh_ahfs(int devid) {

            refresh.Enabled = false;

            lock (lockobject) {

                byte[] data;

                data = new byte[] { 0x12 }; // Select GPIOA register

                WriteI2cData(0x40, data, 1);

                data = new byte[] { 0x00, 0x00 }; // Read two bytes

                int rslt = ReadI2CData(0x41, ref data, 2);

                devices[devid].cur_input = (uint)data[0] << 24;

                devices[devid].cur_input |= (uint)data[1] << 16;

                data = new byte[] { 0x12 }; // Select GPIOA register

                WriteI2cData(0x42, data, 1);

                data = new byte[] { 0x00, 0x00 }; // Read two bytes

                rslt = ReadI2CData(0x43, ref data, 2);

                devices[devid].cur_input |= (uint)data[0] << 8;

                devices[devid].cur_input |= (uint)data[1];

                if (devices[devid].cur_input != devices[devid].prev_input) {

                    this.input_ahfs(devid);

                    devices[devid].prev_input = devices[devid].cur_input;

                }

                // Do the Refueling light adc

                devices[devid].cur_adc = ReadADC(1);

                if (devices[devid].cur_adc > devices[devid].max_adc)

                    devices[devid].max_adc = devices[devid].cur_adc;

                ushort lowerval = 0;

                if (devices[devid].prev_adc >= devices[devid].adc_thres)

                    lowerval = (ushort)(devices[devid].prev_adc - devices[devid].adc_thres);

                ushort upperval = devices[devid].max_adc;

                if (devices[devid].prev_adc <= upperval - devices[devid].adc_thres)

                    upperval = (ushort)(devices[devid].prev_adc + devices[devid].adc_thres);

                //Console.WriteLine("ADC: " + devices[devid].cur_adc + " Max: " + devices[devid].max_adc + " Low: " + lowerval + " High: " + upperval);

                if ((devices[devid].cur_adc < lowerval) || (devices[devid].cur_adc >= upperval)) {

                    // Cover our min/max ranges within threshold

                    if (devices[devid].cur_adc < devices[devid].adc_thres)

                        devices[devid].cur_adc = 0;

                    if (devices[devid].cur_adc > devices[devid].max_adc - devices[devid].adc_thres)

                        devices[devid].cur_adc = devices[devid].max_adc;

                    devices[devid].prev_adc = devices[devid].cur_adc;

                    ushort refuellight = map_ushort(devices[devid].cur_adc, 0, devices[devid].max_adc, 0, 0xffff);

                    bios.SendData("ALCP_RCVR_LTS " + refuellight.ToString() + "\n");

                    Console.WriteLine("ALCP_RCVR_LTS " + ":" + refuellight.ToString() + "(" + devices[devid].cur_adc + ")");

                }

            }

            refresh.Enabled = enabled;

        }

        public void input_ahfs(int devid) {

            // AHCP

            // Train - Safe - Arm

            Switch3Pos(8, 9, "AHCP_MASTER_ARM", devid);

            // Gunarm - Safe - Arm

            Switch3Pos(10, 11, "AHCP_GUNPAC", devid);

            // Train - Safe - Arm

            Switch3Pos(12, 13, "AHCP_LASER_ARM", devid);

            // Off - On

            Switch2Pos(14, "AHCP_TGP", devid);

            // Radar  - Delta - Baro

            Switch3Pos(0, 1, "AHCP_ALT_SCE", devid);

            // Night - Day

            Switch2Pos(2, "AHCP_HUD_DAYNIGHT", devid);

            //Stby - Norm

            Switch2Pos(15, "AHCP_HUD_MODE", devid);

            // Off - On

            Switch2Pos(3, "AHCP_CICU", devid);

            // Off - On

            Switch2Pos(4, "AHCP_JTRS", devid);

            //Off - Test - On

            Switch3Pos(6, 5, "AHCP_IFFCC", devid);

            //

            Switch2Pos(7, "HARS_FAST_ERECT", devid);

            // Fuel System

            // 

            Switch2Pos(16, "FSCP_AMPL", devid);

            // 

            Switch2Pos(24, "FSCP_BOOST_MAIN_L", devid);

            // 

            Switch2Pos(25, "FSCP_BOOST_MAIN_R", devid);

            // 

            Switch2Pos(26, "FSCP_BOOST_WING_L", devid);

            // 

            Switch2Pos(27, "FSCP_BOOST_WING_R", devid);

            // 

            Switch2Pos(28, "FSCP_CROSSFEED", devid);

            // 

            Switch2Pos(30, "FSCP_EXT_TANKS_FUS", devid);

            // 

            Switch2Pos(31, "FSCP_EXT_TANKS_WING", devid);

            // 

            Switch2Pos(20, "FSCP_FD_MAIN_L",devid, true);

            // 

            Switch2Pos(21, "FSCP_FD_MAIN_R", devid, true);

            // 

            Switch2Pos(18, "FSCP_FD_WING_L", devid, true);

            // 

            Switch2Pos(19, "FSCP_FD_WING_R", devid, true);

            // 

            Switch2Pos(17, "FSCP_LINE_CHECK", devid);

            // 

            Switch2Pos(23, "FSCP_RCVR_LEVER", devid); // Technically a 3pos, but 3rd not needed

            // 

            Switch2Pos(29, "FSCP_TK_GATE", devid);

        }

        public byte ReadGpio(byte pinNum) {

            return Convert.ToByte(usbi2c.Functions.ReadGpioPinValue(pinNum));

        }

        public ushort ReadADC(byte pinNum) {

            ushort[] adcData = { 0, 0, 0, 0, 0, 0 };

            int rslt = usbi2c.Functions.GetAdcData(adcData);

            return adcData[pinNum];

        }

        public void WriteGpio(byte pinNum, byte value) {

            this.usbi2c.Functions.WriteGpioPinValue(pinNum, value);

        }

        public int WriteI2cData(byte address, byte[] data, uint count) {

            int rslt = this.usbi2c.Functions.WriteI2cData(address, data, count, this.speed);

            return rslt;

        }

        public int ReadI2CData(byte address, ref byte[] data, uint count) {

            int rslt = this.usbi2c.Functions.ReadI2cData(address, data, count, this.speed);

            return rslt;

        }

        public uint Switch2Pos(int pin, String cmd, int devid, Boolean invert = false) {

            uint chg = (uint)(devices[devid].prev_input >> pin) & 0x01;

            uint norm = (uint)(devices[devid].cur_input >> pin) & 0x01;

            uint value = 0;

            if ((uint)(norm) == 1) {

                value = (uint)(invert ? 0 : 1);

            } else {

                value = (uint)(invert ? 1 : 0);

            }

            if (norm != chg) {

                bios.SendData(cmd + " " + value.ToString() + "\n");

                Console.WriteLine(cmd + ":" + value.ToString());

            }

            return value;

        }

        public uint Switch3Pos(int pin0, int pin1, String cmd, int devid, Boolean invert = false) {

            uint value = 1;

            uint chg0 = (uint)(devices[devid].prev_input >> pin0) & 0x01;

            uint chg1 = (uint)(devices[devid].prev_input >> pin1) & 0x01;

            uint nrm0 = (uint)(devices[devid].cur_input >> pin0) & 0x01;

            uint nrm1 = (uint)(devices[devid].cur_input >> pin1) & 0x01;

            if ((uint)nrm0 == 1)

                value = (uint)(invert ? 2 : 0);

            else if ((uint)nrm1 == 1)

                value = (uint)(invert ? 0 : 2);

            if ((nrm0 != chg0) || (nrm1 != chg1)) {

                bios.SendData(cmd + " " + value.ToString() + "\n");

                Console.WriteLine(cmd + ":" + value.ToString());

            }

            return value;

        }

        public uint Selector(int[] pins, String cmd, int devid) {

            uint value = 0;

            uint chg = 0;

            uint norm = 0;

            uint mask = 0;

            for (int i = 0; i < pins.Length; i++)

                mask |= (uint)1 << i;

            for (int i = 0; i < pins.Length; i++) {

                chg |= (uint)(devices[devid].prev_input >> (pins[i] - i)) & mask;

                norm |= (uint)(devices[devid].cur_input >> (pins[i] - i)) & mask;

                if ((uint)((devices[devid].cur_input >> pins[i]) & 0x01) == 1) {

                    value = (uint)i;

                }

            }

            // This happens when between positions of the selector

            if (norm == 0)

                return 0;

            if (norm != chg) {

                bios.SendData(cmd + " " + value.ToString() + "\n");

                Console.WriteLine(cmd + ":" + value.ToString());

            }

            return value;

        }

        public void send_trackir(VirtualKeyCode key) {

            sendkey.Keyboard.KeyDown(VirtualKeyCode.CONTROL);

            System.Threading.Thread.Sleep(10);

            sendkey.Keyboard.KeyPress(key);

            sendkey.Keyboard.KeyUp(VirtualKeyCode.CONTROL);

        }

        public ushort map_ushort(ushort x, ushort in_min, ushort in_max, ushort out_min, ushort out_max) {

            return (ushort)((x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min);

        }

    }

}