fusb_sysconfig_ra_wb.cc

来自「这是用python语言写的一个数字广播的信号处理工具包。利用它」· CC 代码 · 共 53 行

/* -*- c++ -*- */
/*
 * Copyright 2003,2006 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.
 */

#include <fusb.h>
#include <fusb_ra_wb.h>

//static const int MAX_BLOCK_SIZE = 16 * 1024;		// hard limit
// there's no hard limit, even before making any changes to the driver
// 64k is empirically a pretty good number
static const int MAX_BLOCK_SIZE = 64 * 1024;
// there is a limit of 1 MB in the driver for the buffer size
static const int FUSB_BUFFER_SIZE = 256 * (1L << 10);	// 256 kB

fusb_devhandle *
fusb_sysconfig::make_devhandle (usb_dev_handle *udh)
{
  return new fusb_devhandle_ra_wb (udh);
}
	
int fusb_sysconfig::max_block_size ()
{
  return MAX_BLOCK_SIZE;
}

int fusb_sysconfig::default_block_size ()
{
  return fusb_sysconfig::max_block_size ();
}

int fusb_sysconfig::default_buffer_size ()
{
  return FUSB_BUFFER_SIZE;
}