--- /dev/null
+/* -*- c++ -*- */
+/*
+ * Copyright 2003 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.
+ */
+
+// Fast USB interface
+
+#ifndef _FUSB_LIBUSB1_BASE_H_
+#define _FUSB_LIBUSB1_BASE_H_
+
+struct libusb_device_handle;
+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_LIBUSB1_BASE_H_ */
+
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