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/*

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This file is part of CanFestival, a library implementing CanOpen Stack.

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Copyright (C): Edouard TISSERANT and Francis DUPIN

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AT91 Port: Peter CHRISTEN

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See COPYING file for copyrights details.

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This library is free software; you can redistribute it and/or

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modify it under the terms of the GNU Lesser General Public

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License as published by the Free Software Foundation; either

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version 2.1 of the License, or (at your option) any later version.

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This library is distributed in the hope that it will be useful,

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but WITHOUT ANY WARRANTY; without even the implied warranty of

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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

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Lesser General Public License for more details.

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You should have received a copy of the GNU Lesser General Public

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License along with this library; if not, write to the Free Software

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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

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*/

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#ifndef __CAN_AT91__

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#define __CAN_AT91__

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#include "config.h"

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// Canfestivals includes

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#include "can.h"

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// Number of receive MB

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#define NB_MB				8

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#define NB_RX_MB			4

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// Number of transmit MB

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#define NB_TX_MB			(NB_MB - NB_RX_MB)

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#if (NB_TX_MB < 1)

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#error define less RX MBs, you must have at least 1 TX MB!

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#elif (NB_RX_MB < 1)

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#error define at least 1 RX MBs!

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#endif

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#define START_TX_MB			NB_RX_MB

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#define TX_INT_MSK			((0xFF << (NB_MB - NB_TX_MB)) & 0xFF)

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#define RX_INT_MSK			(0xFF >> (NB_MB - NB_RX_MB))

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/************************* To be called by user app ***************************/

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unsigned char canInit(unsigned int bitrate);

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unsigned char canSend(CAN_PORT notused, Message *m);

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unsigned char canReceive(Message *m);

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#endif