Subversion Repositories openrisc

/*
        FreeRTOS V5.4.2 - Copyright (C) 2009 Real Time Engineers Ltd.

        This file is part of the FreeRTOS distribution.

        FreeRTOS is free software; you can redistribute it and/or modify it     under 
        the terms of the GNU General Public License (version 2) as published by the 
        Free Software Foundation and modified by the FreeRTOS exception.
        **NOTE** The exception to the GPL is included to allow you to distribute a
        combined work that includes FreeRTOS without being obliged to provide the 
        source code for proprietary components outside of the FreeRTOS kernel.  
        Alternative commercial license and support terms are also available upon 
        request.  See the licensing section of http://www.FreeRTOS.org for full 
        license details.

        FreeRTOS 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 FreeRTOS; if not, write to the Free Software Foundation, Inc., 59
        Temple Place, Suite 330, Boston, MA  02111-1307  USA.


        ***************************************************************************
        *                                                                         *
        * Looking for a quick start?  Then check out the FreeRTOS eBook!          *
        * See http://www.FreeRTOS.org/Documentation for details                   *
        *                                                                         *
        ***************************************************************************

        1 tab == 4 spaces!

        Please ensure to read the configuration and relevant port sections of the
        online documentation.

        http://www.FreeRTOS.org - Documentation, latest information, license and
        contact details.

        http://www.SafeRTOS.com - A version that is certified for use in safety
        critical systems.

        http://www.OpenRTOS.com - Commercial support, development, porting,
        licensing and training services.
*/

#ifndef EMAC__H
#define EMAC__H

/*
 * Initialise all IO and preipherals required for Ethernet communication.
 */
portBASE_TYPE xEthInitialise( void );

/*
 * Look for new received data.  If any is found then set uip_buf to point to the
 * data and return the length of the data.  If no data is found then 0 is
 * returned, and uip_buf is left pointing to a spare data buffer.
 */
unsigned short usGetMACRxData( void );

/*
 * Send usDataLen bytes from uip_buf to the MAC for transmission.
 */
void vSendMACData( unsigned short usDataLen );

/*
 * Return a buffer to the pool of free buffers.
 */
void vReturnBuffer( unsigned char *pucBuffer );

#endif