/** INCLUDES *******************************************************/
#include "system.h"
#include "system_config.h"
#include "app_led_usb_status.h"
#include "usb_config.h"
#include "usb.h"
#include "usb_device.h"
#include "usb_device_cdc.h"


static uint8_t readBuffer[64];
static uint8_t writeBuffer[64];
void APP_DeviceCDCBasicDemoTasks();
void APP_DeviceCDCBasicDemoInitialize();
void UserInit();
void interrupt low_priority low_isr();   //low priority interrupt routine

void Leds(int value);
int  value = 0;  //gloable variable
uint8_t output = 0;
int b0 = 0;
int b1 = 0;
int b2 = 0;
int b3 = 0;
int b4 = 0;
int b5 = 0;
int b6 = 0;
int b7 = 0;

MAIN_RETURN main(void)
{
    SYSTEM_Initialize(SYSTEM_STATE_USB_START);

    USBDeviceInit();
    USBDeviceAttach();
    UserInit();
    while(1)
    {
        SYSTEM_Tasks();
        //Application specific tasks
        APP_DeviceCDCBasicDemoTasks();

    }//end while
}//end main

/*User defined Initialiaze Function*/
void UserInit()
{
    PORTA = 0x00;
    TRISA = 0x01;       //A0 = input
    PORTB = 0x00;
    TRISB = 0x00;       //ouput
    PORTC = 0x00;
    TRISC = 0x00;       //ouput
    CMCON = 0x07;

    ADCON0 = 0x01; //7-6 unimplemented
                   //5-2 channel
                   //1 GO/DONE (in progress "1"/idle "0")
                   //0 On bit (enable "1"/disable "0")

    ADCON1 = 0x0E; //7-6 unimplemented
                   //5 Voltage ref config bit
                   //4 Voltage ref config bit
                   //3-0 A/D configure bits (1110 = AN0)

    ADCON2 = 0x3E; //left justified,t clock select Fosc/64 and 20 TAD
                   //0011 1110

    RCONbits.IPEN=1;        //Enable priority levels on interrupts
    INTCONbits.PEIE=1;      //Enables all low priority peripheral interrupts
    PIE1bits.ADIE=1;
    IPR1bits.ADIP =0;
    PIR1bits.ADIF=0;
    ADCON0bits.GO=1;        //start ADcon

    INTCONbits.GIE = 1;     //Enable global int

    //T0CON = 0xC7;
    //PIE1bits.ADIE = 1;
    //RCONbits.IPEN = 1;          //Enable priority levels on interrupts
    //INTCON2bits.TMR0IP = 0;     //TMR0 on low prio
    //INTCONbits.TMR0IE = 1;      //Enables the TMR0 overflow interrupt
    //INTCONbits.GIEL = 1;        //Enable Low Priority Interrupt
}

void interrupt low_priority low_isr()
{
    if(PIR1bits.ADIF == 1)
    {
        ADCON0bits.GO=1;        //start ADcon
        value = ADRESH;
        PIR1bits.ADIF = 0;      //CLEAR interrupt flag when you are done!!!
    }
}

void APP_DeviceCDCBasicDemoTasks()
{
    /* Check to see if there is a transmission in progress, if there isn't, then
     * we can see about performing an echo response to data received.
     */
    if( USBUSARTIsTxTrfReady() == true)
    {
        uint8_t i;
        uint8_t numBytesRead;
        /*get the data from the computer,and put in an array*/
        numBytesRead = getsUSBUSART(readBuffer, sizeof(readBuffer));

        /* For every byte that was read... */
        for(i=0; i<numBytesRead; i++)
        {
            switch(readBuffer[i])
            {
                /* If we receive new line or line feed commands, just echo
                 * them direct.
                 */
                case 0x0A:
                case 0x0D:
                    writeBuffer[i] = readBuffer[i];
                    break;
                case 0x5A:
                    putrsUSBUSART("" + value);
                    Leds(value);
                    break;
                /* If we receive something else, then echo it plus one
                 * so that if we receive 'a', we echo 'b' so that the
                 * user knows that it isn't the echo enabled on their
                 * terminal program.
                 */
                default:
                    writeBuffer[i] = readBuffer[i];
                    output = writeBuffer[i];
                    //Leds(output);
                    break;
            }
        }

        if(numBytesRead > 0)
        {
            /* After processing all of the received data, we need to send out
             * the "echo" data now.
             */
            putUSBUSART(writeBuffer,numBytesRead);
            //putrsUSBUSART("" + writeBuffer,numBytesRead);
            //Leds(output);
        }
    }

    //Leds(value);

    CDCTxService();
}

void Leds(int getal){
    b7 = 0;
    b6 = 0;
    b5 = 0;
    b4 = 0;
    b3 = 0;
    b2 = 0;
    b1 = 0;
    b0 = 0;

    if(getal>=128){
        b7=1;
        getal=getal-128;
    }
    if(getal>=64){
        b6=1;
        getal=getal-64;
    }
    if(getal>=32){
        b5=1;
        getal=getal-32;
    }
    if(getal>=16){
        b4=1;
        getal=getal-16;
    }
    if(getal>=8){
        b3=1;
        getal=getal-8;
    }
    if(getal>=4){
        b2=1;
        getal=getal-4;
    }
    if(getal>=2){
        b1=1;
        getal=getal-2;
    }
    if(getal>=1){
        b0=1;
    }
    PORTBbits.RB2 = b0;
    PORTBbits.RB3 = b1;
    PORTBbits.RB4 = b2;
    PORTBbits.RB5 = b3;
    PORTBbits.RB6 = b4;
    PORTBbits.RB7 = b5;
    PORTAbits.RA2 = b6;
    PORTAbits.RA3 = b7;
}

/*You don't need to care the code below*/
void APP_DeviceCDCBasicDemoInitialize()
{
    CDCInitEP();


    line_coding.bCharFormat = 0;
    line_coding.bDataBits = 8;
    line_coding.bParityType = 0;
    line_coding.dwDTERate = 9600;

}

bool USER_USB_CALLBACK_EVENT_HANDLER(USB_EVENT event, void *pdata, uint16_t size)
{
    switch( (int) event )
    {
        case EVENT_TRANSFER:
            break;

        case EVENT_SOF:
            /* We are using the SOF as a timer to time the LED indicator.  Call
             * the LED update function here. */
            APP_LEDUpdateUSBStatus();
            break;

        case EVENT_SUSPEND:
            /* Update the LED status for the suspend event. */
            APP_LEDUpdateUSBStatus();
            break;

        case EVENT_RESUME:
            /* Update the LED status for the resume event. */
            APP_LEDUpdateUSBStatus();
            break;

        case EVENT_CONFIGURED:
            /* When the device is configured, we can (re)initialize the
             * demo code. */
           APP_DeviceCDCBasicDemoInitialize();
            break;

        case EVENT_SET_DESCRIPTOR:
            break;

        case EVENT_EP0_REQUEST:
            /* We have received a non-standard USB request.  The HID driver
             * needs to check to see if the request was for it. */
            USBCheckCDCRequest();
            break;

        case EVENT_BUS_ERROR:
            break;

        case EVENT_TRANSFER_TERMINATED:
            break;

        default:
            break;
    }
    return true;
}
//        /* If the USB device isn't configured yet, we can't really do anything
//         * else since we don't have a host to talk to.  So jump back to the
//         * top of the while loop. */
//        if( USBGetDeviceState() < CONFIGURED_STATE )
//        {
//            /* Jump back to the top of the while loop. */
//            continue;
//        }

//        /* If we are currently suspended, then we need to see if we need to
//         * issue a remote wakeup.  In either case, we shouldn't process any
//         * keyboard commands since we aren't currently communicating to the host
//         * thus just continue back to the start of the while loop. */
//        if( USBIsDeviceSuspended()== true )
//        {
//            /* Jump back to the top of the while loop. */
//            continue;
//        }

/*******************************************************************************
 End of File
*/