gpdriver.cpp

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/*******************************************************************************
  Copyright(c) 2012 Jasem Mutlaq. All rights reserved.
 
  This program is free software; you can redistribute it and/or modify it
  under the terms of the GNU General Public License as published by the Free
  Software Foundation; either version 2 of the License, or (at your option)
  any later version.
 
  This program is distributed in the hope that it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  more details.
 
  You should have received a copy of the GNU Library General Public License
  along with this library; see the file COPYING.LIB.  If not, write to
  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  Boston, MA 02110-1301, USA.
 
  The full GNU General Public License is included in this distribution in the
  file called LICENSE.
*******************************************************************************/
 
#include "gpdriver.h"
 
GPUSBDriver::GPUSBDriver()
{
    //ctor
    guideCMD[0] = 0;
    debug       = false;
}
 
GPUSBDriver::~GPUSBDriver()
{
    //dtor
    // usb_close(usb_handle);
}
 
bool GPUSBDriver::Connect()
{
    dev = FindDevice(0x134A, 0x9020, 0);
 
    if (dev == nullptr)
    {
        IDLog("Error: No GPUSB device found\n");
        return false;
    }
 
    int rc = Open();
 
    return (rc != -1);
}
 
bool GPUSBDriver::Disconnect()
{
    Close();
    return true;
}
 
bool GPUSBDriver::startPulse(int direction)
{
    int rc = 0;
 
    switch (direction)
    {
        case GPUSB_NORTH:
            guideCMD[0] &= GPUSB_CLEAR_DEC;
            guideCMD[0] |= (GPUSB_NORTH | GPUSB_LED_ON) & ~GPUSB_LED_RED;
            break;
 
        case GPUSB_WEST:
            guideCMD[0] &= GPUSB_CLEAR_RA;
            guideCMD[0] |= (GPUSB_WEST | GPUSB_LED_ON) & ~GPUSB_LED_RED;
            break;
 
        case GPUSB_SOUTH:
            guideCMD[0] &= GPUSB_CLEAR_DEC;
            guideCMD[0] |= GPUSB_SOUTH | GPUSB_LED_ON | GPUSB_LED_RED;
            break;
 
        case GPUSB_EAST:
            guideCMD[0] &= GPUSB_CLEAR_RA;
            guideCMD[0] |= GPUSB_EAST | GPUSB_LED_ON | GPUSB_LED_RED;
            break;
    }
 
    if (debug)
        IDLog("start command value is 0x%X\n", guideCMD[0]);
 
    rc = WriteBulk((unsigned char *)guideCMD, 1, 1000);
 
    if (debug)
        IDLog("startPulse WriteBulk returns %d\n", rc);
    if (rc == 1)
        return true;
 
    return false;
}
 
bool GPUSBDriver::stopPulse(int direction)
{
    int rc = 0;
 
    switch (direction)
    {
        case GPUSB_NORTH:
            if (debug)
                IDLog("Stop North\n");
            guideCMD[0] &= GPUSB_CLEAR_DEC;
            break;
 
        case GPUSB_WEST:
            if (debug)
                IDLog("Stop West\n");
            guideCMD[0] &= GPUSB_CLEAR_RA;
            break;
 
        case GPUSB_SOUTH:
            if (debug)
                IDLog("Stop South\n");
            guideCMD[0] &= GPUSB_CLEAR_DEC;
            break;
 
        case GPUSB_EAST:
            if (debug)
                IDLog("Stop East\n");
            guideCMD[0] &= GPUSB_CLEAR_RA;
            break;
    }
 
    if ((guideCMD[0] & GPUSB_NORTH) || (guideCMD[0] & GPUSB_WEST))
        guideCMD[0] &= ~GPUSB_LED_RED;
    else if ((guideCMD[0] & GPUSB_SOUTH) || (guideCMD[0] & GPUSB_EAST))
        guideCMD[0] |= GPUSB_LED_RED;
 
    if ((guideCMD[0] & 0xF) == 0)
        guideCMD[0] = 0;
 
    if (debug)
        IDLog("stop command value is 0x%X\n", guideCMD[0]);
 
    rc = WriteBulk((unsigned char *)guideCMD, 1, 1000);
 
    if (debug)
        IDLog("stopPulse WriteBulk returns %d\n", rc);
    if (rc == 1)
        return true;
 
    return false;
}