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//
// Copyright 2010 Ettus Research LLC
//
// 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 3 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 General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
#include "libusb1_base.hpp"
#include <uhd/transport/usb_control.hpp>
using namespace uhd::transport;
const int libusb_debug_level = 0;
const int libusb_timeout = 0;
/***********************************************************************
* libusb-1.0 implementation of USB control transport
**********************************************************************/
class libusb_control_impl : public usb_control {
public:
libusb_control_impl(usb_device_handle::sptr handle);
~libusb_control_impl();
size_t submit(boost::uint8_t request_type,
boost::uint8_t request,
boost::uint16_t value,
boost::uint16_t index,
unsigned char *buff,
boost::uint16_t length);
private:
libusb_context *_ctx;
libusb_device_handle *_dev_handle;
};
libusb_control_impl::libusb_control_impl(usb_device_handle::sptr handle)
{
libusb::init(&_ctx, libusb_debug_level);
// Find and open the libusb_device corresponding to the
// given handle and return the libusb_device_handle
// that can be used for I/O purposes.
_dev_handle = libusb::open_device(_ctx, handle);
// Open USB interfaces for control using magic value
// IN interface: 2
// OUT interface: 1
// Control interface: 0
libusb::open_interface(_dev_handle, 0);
}
libusb_control_impl::~libusb_control_impl()
{
libusb_close(_dev_handle);
libusb_exit(_ctx);
}
size_t libusb_control_impl::submit(boost::uint8_t request_type,
boost::uint8_t request,
boost::uint16_t value,
boost::uint16_t index,
unsigned char *buff,
boost::uint16_t length)
{
return libusb_control_transfer(_dev_handle,
request_type,
request,
value,
index,
buff,
length,
libusb_timeout);
}
/***********************************************************************
* USB control public make functions
**********************************************************************/
usb_control::sptr usb_control::make(usb_device_handle::sptr handle)
{
return sptr(new libusb_control_impl(handle));
}
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