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-rw-r--r--usrp/host/lib/fusb.h138
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diff --git a/usrp/host/lib/fusb.h b/usrp/host/lib/fusb.h
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-/* -*- c++ -*- */
-/*
- * Copyright 2005,2009 Free Software Foundation, Inc.
- *
- * This file is part of GNU Radio
- *
- * GNU Radio 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, or (at your option)
- * any later version.
- *
- * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street,
- * Boston, MA 02110-1301, USA.
- */
-
-#ifndef _FUSB_H_
-#define _FUSB_H_
-
-#include <usrp/libusb_types.h>
-
-struct libusb_context;
-class fusb_ephandle;
-
-/*!
- * \brief abstract usb device handle
- */
-class fusb_devhandle {
-private:
- // NOT IMPLEMENTED
- fusb_devhandle (const fusb_devhandle &rhs); // no copy constructor
- fusb_devhandle &operator= (const fusb_devhandle &rhs); // no assignment operator
-
-protected:
- libusb_device_handle *d_udh;
-
-public:
- // CREATORS
- fusb_devhandle (libusb_device_handle *udh);
- virtual ~fusb_devhandle ();
-
- // MANIPULATORS
-
- /*!
- * \brief return an ephandle of the correct subtype
- */
- virtual fusb_ephandle *make_ephandle (int endpoint, bool input_p,
- int block_size = 0, int nblocks = 0) = 0;
-
- // ACCESSORS
- libusb_device_handle *get_usb_dev_handle () const { return d_udh; }
-};
-
-
-/*!
- * \brief abstract usb end point handle
- */
-class fusb_ephandle {
-private:
- // NOT IMPLEMENTED
- fusb_ephandle (const fusb_ephandle &rhs); // no copy constructor
- fusb_ephandle &operator= (const fusb_ephandle &rhs); // no assignment operator
-
-protected:
- int d_endpoint;
- bool d_input_p;
- int d_block_size;
- int d_nblocks;
- bool d_started;
-
-public:
- fusb_ephandle (int endpoint, bool input_p,
- int block_size = 0, int nblocks = 0);
- virtual ~fusb_ephandle ();
-
- virtual bool start () = 0; //!< begin streaming i/o
- virtual bool stop () = 0; //!< stop streaming i/o
-
- /*!
- * \returns \p nbytes if write was successfully enqueued, else -1.
- * Will block if no free buffers available.
- */
- virtual int write (const void *buffer, int nbytes) = 0;
-
- /*!
- * \returns number of bytes read or -1 if error.
- * number of bytes read will be <= nbytes.
- * Will block if no input available.
- */
- virtual int read (void *buffer, int nbytes) = 0;
-
- /*
- * block until all outstanding writes have completed
- */
- virtual void wait_for_completion () = 0;
-
- /*!
- * \brief returns current block size.
- */
- int block_size () { return d_block_size; };
-};
-
-
-/*!
- * \brief factory for creating concrete instances of the appropriate subtype.
- */
-class fusb_sysconfig {
-public:
- /*!
- * \brief returns fusb_devhandle or throws if trouble
- */
- static fusb_devhandle *make_devhandle (libusb_device_handle *udh,
- libusb_context *ctx = 0);
-
- /*!
- * \brief Returns max block size in bytes (hard limit).
- */
- static int max_block_size ();
-
- /*!
- * \brief Returns default block size in bytes.
- */
- static int default_block_size ();
-
- /*!
- * \brief Returns the default buffer size in bytes.
- */
- static int default_buffer_size ();
-
-};
-
-#endif /* _FUSB_H_ */