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/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2008, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ----------------------------------------------------------------------------
*/
#ifndef _CAN_H
#define _CAN_H
//------------------------------------------------------------------------------
// Definitions
//------------------------------------------------------------------------------
#define AT91C_CAN_TIMEOUT 100000
#define AT91C_TEST_NOK 0
#define AT91C_TEST_OK 1
#define CAN_STATUS_SUCCESS 0
#define CAN_STATUS_LOCKED 1
#define CAN_STATUS_ABORTED 2
#define CAN_STATUS_RESET 3
#if defined (AT91C_BASE_CAN)
#define AT91C_BASE_CAN0 AT91C_BASE_CAN
#endif
#if defined (AT91C_ID_CAN)
#define AT91C_ID_CAN0 AT91C_ID_CAN
#endif
#if defined (AT91C_BASE_CAN_MB0)
#define AT91C_BASE_CAN0_MB0 AT91C_BASE_CAN_MB0
#define AT91C_BASE_CAN0_MB1 AT91C_BASE_CAN_MB1
#define AT91C_BASE_CAN0_MB2 AT91C_BASE_CAN_MB2
#define AT91C_BASE_CAN0_MB3 AT91C_BASE_CAN_MB3
#define AT91C_BASE_CAN0_MB4 AT91C_BASE_CAN_MB4
#define AT91C_BASE_CAN0_MB5 AT91C_BASE_CAN_MB5
#define AT91C_BASE_CAN0_MB6 AT91C_BASE_CAN_MB6
#define AT91C_BASE_CAN0_MB7 AT91C_BASE_CAN_MB7
#endif
#if defined (AT91C_BASE_CAN_MB8)
#define AT91C_BASE_CAN0_MB8 AT91C_BASE_CAN_MB8
#define AT91C_BASE_CAN0_MB9 AT91C_BASE_CAN_MB9
#define AT91C_BASE_CAN0_MB10 AT91C_BASE_CAN_MB10
#define AT91C_BASE_CAN0_MB11 AT91C_BASE_CAN_MB11
#define AT91C_BASE_CAN0_MB12 AT91C_BASE_CAN_MB12
#define AT91C_BASE_CAN0_MB13 AT91C_BASE_CAN_MB13
#define AT91C_BASE_CAN0_MB14 AT91C_BASE_CAN_MB14
#define AT91C_BASE_CAN0_MB15 AT91C_BASE_CAN_MB15
#endif
#define NUM_MAILBOX_MAX 16
//------------------------------------------------------------------------------
// Types
//------------------------------------------------------------------------------
typedef struct
{
volatile unsigned char state;
volatile unsigned char can_number;
volatile unsigned char mailbox_number;
volatile unsigned char test_can;
volatile unsigned int mode_reg;
volatile unsigned int acceptance_mask_reg;
volatile unsigned int identifier;
volatile unsigned int data_low_reg;
volatile unsigned int data_high_reg;
volatile unsigned int control_reg;
volatile unsigned int mailbox_in_use;
volatile int size;
} CanTransfer;
//------------------------------------------------------------------------------
// Exported functions
//------------------------------------------------------------------------------
extern unsigned char CAN_Init( unsigned int baudrate,
CanTransfer *canTransferRead,
CanTransfer *canTransferWrite );
extern void CAN_BasicTestSuite(void);
extern void CAN_disable( void );
extern void CAN_ResetAllMailbox( void );
extern void CAN_ResetTransfer( CanTransfer *pTransfer );
extern void CAN_InitMailboxRegisters( CanTransfer *pTransfer );
extern unsigned char CAN_IsInIdle( CanTransfer *pTransfer );
extern unsigned char CAN_Write( CanTransfer *pTransfer );
extern unsigned char CAN_Read( CanTransfer *pTransfer );
extern void CAN_BasicTestSuiteWithoutInterrupt( void );
extern unsigned char CAN_IsInIdle( CanTransfer *pTransfer );
#endif // _CAN_H
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