#include "ft232_reign.h"
#include "ui_ft232_reign.h"

#include <i2c.h>

#include <qdatetime.h>
#include <qthread.h>

#define FTDI_ERROR(info)  {   toLog(info);  return; }

QString last_write_data = "00";

QString hex_values[16] = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F" };

int tmr_on = 0;

ft232_reign::ft232_reign(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::ft232_reign)
{
    ui->setupUi(this);    
    log = "";
    tmr = new QTimer();
    tmr->setInterval(500);
    tmr->setSingleShot(false);
    tmr->start();
    QObject::connect(tmr, SIGNAL(timeout ()), this, SLOT(tmr_fxn()));
}

ft232_reign::~ft232_reign()
{
    i2c_close();
    delete ui;    
}

void ft232_reign::on_pushButton_clicked()
{
    //i2c_example();
    //char desc[1024], serial[1024];
    //i2c_open_index_port (0, desc, serial);

    //if (bitbang_open (0, 1, 0) == 0)
    //    tmr_on = 1;
}

void ft232_reign::on_pushButton_2_clicked()
{
    //i2c_example();
    //bitbang_close();
    //tmr_on = 0;
}

void ft232_reign::tmr_fxn()
{
    //if (tmr_on == 0)
    //    return;
    //char rd[10];
    //bitbang_read(rd);
    //qDebug ("Reading from FTDI bitbang: %x, %x, %x, %x", rd[0], rd[1], rd[2], rd[3]);
}

void ft232_reign::toLog(QString info)
{
    log = QTime::currentTime().toString("HH:mm:ss") + "\t" + info + "\n" + log;
    ui->log->setText("LOG\n\n" + log);
}

QString ft232_reign::char_to_str(char *data, int len)
{
    QString str = "";
    for (int i = 0; i < len; i++)   {
        if (data[i] == 0x00)
            break;
        str = str + data[i];
    }
    return str;
}

void ft232_reign::on_clr_log_clicked()
{
    log = "";
    ui->log->setText("LOG\n\n");
}

void ft232_reign::on_connect_clicked()
{
    int result = 0;
    if (ui->connect->text() == "Connect")   {
        res = i2c_open(ui->i2c_clk->value(), ui->i2c_index->value(), (ui->i2c_port->currentIndex() + 1));
        qDebug ("Connecting to FTDI device, clk %d, index %d, port %d. RETURN %d", ui->i2c_clk->value(), ui->i2c_index->value(), (ui->i2c_port->currentIndex() + 1), res);
        if (res == 0)    {
            ui->connect->setText("Disconnect");
            toLog ("CONNECTING TO DEVICE OK, " + ui->i2c_port->currentText() + ", CLK " + QString::number(ui->i2c_clk->value()) + ", INDEX " + QString::number(ui->i2c_index->value()));
        }
        else    {
            FTDI_ERROR("ABORT_OPEN_CHANNEL, ERROR " + QString::number(res));
        }
    }
    else    {
        i2c_close();
        ui->connect->setText("Connect");
        toLog ("DEVICE DISCONNECTED");
    }
}

void ft232_reign::on_i2c_length_valueChanged(int arg1)
{
    QString mask = "HH";    int last_mask_len;  QString last_data;
    for (int i = 1; i < arg1; i++)
        mask = mask + " HH";
    last_mask_len = ui->i2c_write_data->inputMask().length();
    last_data = ui->i2c_write_data->text();
    ui->i2c_write_data->setInputMask(mask);
    if (last_mask_len < mask.length())  {
        for (int i = 0; i < ((mask.length() - last_mask_len) / 3); i++)
            last_data = last_data + " 00";
        ui->i2c_write_data->setText(last_data);
    }
}

void ft232_reign::on_i2c_write_data_textChanged(const QString &arg1)
{
    if (arg1.length() != (3 * ui->i2c_length->value() - 1))
        ui->i2c_write_data->setText(last_write_data);
    else
        last_write_data = ui->i2c_write_data->text();
}

void ft232_reign::on_i2c_write_clicked()
{
    QString str = ui->i2c_write_data->text();
    for (int i = 0; i < ui->i2c_length->value(); i++)
        data[i] = str.mid(i*3, 2).toInt(NULL, 16);
    res = i2c_tx (ui->i2c_adress->value(), (char*)data, ui->i2c_length->value(), 1, 1);    //res = I2C_DeviceWrite(reign, ui->i2c_adress->value(), ui->i2c_length->value(), data, &transfer_len, 0x07);
    if (res == 10/*FT_DEVICE_NOT_FOUND*/) {
        toLog ("I2C DEVICE WITH ADRESS 0x" + QString::number(ui->i2c_adress->value(), 16) + " NOT ASK (TX)");
        return;
    }
    if (res != 0/*FT_OK*/)
        FTDI_ERROR("ABORT_TRANSMIT, ERROR " + QString::number(res));
    str = "I2C TRANSMIT TO 0x" + QString::number(ui->i2c_adress->value(), 16) + " " + QString::number(ui->i2c_length->value()) + " BYTES:\t";
    for (int i = 0; i < ui->i2c_length->value(); i++)
        str = str + " " + QString::number(data[i], 16);
    toLog(str);
}

void ft232_reign::on_i2c_read_clicked()
{
    QString str;
    res = i2c_rx (ui->i2c_adress->value(), (char*)data, ui->i2c_length->value(), 1, 1);    //res = I2C_DeviceRead(reign, ui->i2c_adress->value(), ui->i2c_length->value(), data, &transfer_len, 0x0B);
    if (res == 10/*FT_DEVICE_NOT_FOUND*/) {
        toLog ("I2C DEVICE WITH ADRESS 0x" + QString::number(ui->i2c_adress->value(), 16) + " NOT ASK (RX)");
        return;
    }
    if (res != 0/*FT_OK*/)
        FTDI_ERROR("ABORT_RECEIVE, ERROR " + QString::number(res));
    str = "I2C RECEIVE FROM 0x" + QString::number(ui->i2c_adress->value(), 16) + " " + QString::number(ui->i2c_length->value()) + " BYTES:\t";
    for (int i = 0; i < ui->i2c_length->value(); i++)
        str = str + " " + QString::number(data[i], 16);
    toLog(str);
}

void ft232_reign::on_read_i2c_hid_desc_clicked()
{
    toLog ("READING I2C HID DESCRIPTOR");
    ui->i2c_length->setValue(2);
    ui->i2c_write_data->setText("01 00");
    on_i2c_write_clicked();
    QThread::msleep(100);
    ui->i2c_length->setValue(30);
    on_i2c_read_clicked();
    for (int i = 0; i < 30; i++)    {
        i2c_hid_descr[i] = data[i];
    }
    toLog ("------------------------------------------");
}

void ft232_reign::on_read_hid_report_desc_clicked()
{
    toLog ("READING HID REPORT DESCRIPTOR");
    ui->i2c_length->setValue(2);
    QString reg = hex_values[(i2c_hid_descr[6]>>4) & 0xF] + hex_values[(i2c_hid_descr[6]>>0) & 0xF] + " " + \
                  hex_values[(i2c_hid_descr[7]>>4) & 0xF] + hex_values[(i2c_hid_descr[7]>>0) & 0xF];
    ui->i2c_write_data->setText(reg);
    on_i2c_write_clicked();
    QThread::msleep(100);
    ui->i2c_length->setValue((i2c_hid_descr[4] & 0xFF) + (i2c_hid_descr[5] & 0xFF) * 256);
    on_i2c_read_clicked();
    toLog ("------------------------------------------");
}

void ft232_reign::on_read_input_report_int_clicked()
{
    toLog ("READING INPUT REPORT (INTERRUPT MODE)");
    ui->i2c_length->setValue((i2c_hid_descr[10] & 0xFF) + (i2c_hid_descr[11] & 0xFF) * 256);
    on_i2c_read_clicked();
    toLog ("------------------------------------------");
}

void ft232_reign::on_read_input_report_cmd_clicked()
{
    toLog ("READING INPUT REPORT (COMMAND MODE)");
    ui->i2c_length->setValue(6);
    QString reg = hex_values[(i2c_hid_descr[16]>>4) & 0xF] + hex_values[(i2c_hid_descr[16]>>0) & 0xF] + " " + \
                  hex_values[(i2c_hid_descr[17]>>4) & 0xF] + hex_values[(i2c_hid_descr[17]>>0) & 0xF];
    reg = reg + " 10 02 ";  //  COMMAND OPCODE - 2 (INPUT REPORT REQUEST), TYPE 01 - INPUT
    reg = reg + hex_values[(i2c_hid_descr[18]>>4) & 0xF] + hex_values[(i2c_hid_descr[18]>>0) & 0xF] + " " + \
                hex_values[(i2c_hid_descr[19]>>4) & 0xF] + hex_values[(i2c_hid_descr[19]>>0) & 0xF];
    ui->i2c_write_data->setText(reg);
    on_i2c_write_clicked();
    QThread::msleep(100);
    ui->i2c_length->setValue((i2c_hid_descr[10] & 0xFF) + (i2c_hid_descr[11] & 0xFF) * 256);
    on_i2c_read_clicked();
    toLog ("------------------------------------------");
}