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FreeRTOS-Kernel/Demo/lwIP_Demo_Rowley_ARM7/EMAC/SAM7_EMAC.h
2006-11-19 22:13:28 +00:00

121 lines
4.2 KiB
C

/*
FreeRTOS.org V4.1.3 - Copyright (C) 2003-2006 Richard Barry.
This file is part of the FreeRTOS.org distribution.
FreeRTOS.org 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 2 of the License, or
(at your option) any later version.
FreeRTOS.org 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.org; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes FreeRTOS.org, without being obliged to provide
the source code for any proprietary components. See the licensing section
of http://www.FreeRTOS.org for full details of how and when the exception
can be applied.
***************************************************************************
See http://www.FreeRTOS.org for documentation, latest information, license
and contact details. Please ensure to read the configuration and relevant
port sections of the online documentation.
***************************************************************************
*/
/*
Changes from V3.2.4
+ Modified the default MAC address as the one used previously was not liked
by some routers.
*/
#ifndef SAM_7_EMAC_H
#define SAM_7_EMAC_H
/* MAC address definition. The MAC address must be unique on the network. */
#define emacETHADDR0 0
#define emacETHADDR1 0xbd
#define emacETHADDR2 0x33
#define emacETHADDR3 0x06
#define emacETHADDR4 0x68
#define emacETHADDR5 0x22
/* The IP address being used. */
#define emacIPADDR0 172
#define emacIPADDR1 25
#define emacIPADDR2 218
#define emacIPADDR3 205
/* The gateway address being used. */
#define emacGATEWAY_ADDR0 172
#define emacGATEWAY_ADDR1 25
#define emacGATEWAY_ADDR2 218
#define emacGATEWAY_ADDR3 3
/* The network mask being used. */
#define emacNET_MASK0 255
#define emacNET_MASK1 255
#define emacNET_MASK2 0
#define emacNET_MASK3 0
/*
* Initialise the EMAC driver. If successful a semaphore is returned that
* is used by the EMAC ISR to indicate that Rx packets have been received.
* If the initialisation fails then NULL is returned.
*/
xSemaphoreHandle xEMACInit( void );
/*
* Send ulLength bytes from pcFrom. This copies the buffer to one of the
* EMAC Tx buffers, then indicates to the EMAC that the buffer is ready.
* If lEndOfFrame is true then the data being copied is the end of the frame
* and the frame can be transmitted.
*/
portLONG lEMACSend( portCHAR *pcFrom, unsigned portLONG ulLength, portLONG lEndOfFrame );
/*
* Frames can be read from the EMAC in multiple sections.
* Read ulSectionLength bytes from the EMAC receive buffers to pcTo.
* ulTotalFrameLength is the size of the entire frame. Generally vEMACRead
* will be repetedly called until the sum of all the ulSectionLenths totals
* the value of ulTotalFrameLength.
*/
void vEMACRead( portCHAR *pcTo, unsigned portLONG ulSectionLength, unsigned portLONG ulTotalFrameLength );
/*
* The EMAC driver and interrupt service routines are defined in different
* files as the driver is compiled to THUMB, and the ISR to ARM. This function
* simply passes the semaphore used to communicate between the two.
*/
void vPassEMACSemaphore( xSemaphoreHandle xCreatedSemaphore );
/*
* Called by the Tx interrupt, this function traverses the buffers used to
* hold the frame that has just completed transmission and marks each as
* free again.
*/
void vClearEMACTxBuffer( void );
/*
* Suspend on a semaphore waiting either for the semaphore to be obtained
* or a timeout. The semaphore is used by the EMAC ISR to indicate that
* data has been received and is ready for processing.
*/
void vEMACWaitForInput( void );
/*
* Return the length of the next frame in the receive buffers.
*/
unsigned portLONG ulEMACInputLength( void );
#endif