| /* ---------------------------------------------------------------------------- | |
| * ATMEL Microcontroller Software Support | |
| * ---------------------------------------------------------------------------- | |
| * Copyright (c) 2011, 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. | |
| * ---------------------------------------------------------------------------- | |
| */ | |
| /** | |
| * \file | |
| * | |
| * Definitions and function prototype for CAN. | |
| */ | |
| #ifndef _CAN_ | |
| #define _CAN_ | |
| /*---------------------------------------------------------------------------- | |
| * Definitions | |
| *----------------------------------------------------------------------------*/ | |
| /* CAN API return status */ | |
| #define CAN_STATUS_SUCCESS 0 | |
| #define CAN_STATUS_LOCKED 1 | |
| #define CAN_STATUS_ABORTED 2 | |
| #define CAN_STATUS_RESET 3 | |
| /*---------------------------------------------------------------------------- | |
| * Types | |
| *----------------------------------------------------------------------------*/ | |
| typedef struct _SCanTransfer | |
| { | |
| volatile uint8_t state ; | |
| volatile uint8_t mailbox_number ; | |
| volatile uint8_t sync_can ; | |
| volatile uint32_t mode_reg ; /* CAN_MMR */ | |
| volatile uint32_t acceptance_mask_reg ; /* CAN_MAM */ | |
| volatile uint32_t identifier ; /* CAN_MID */ | |
| volatile uint32_t data_low_reg ; /* CAN_MDL */ | |
| volatile uint32_t data_high_reg ; /* CAN_MDH */ | |
| volatile uint32_t control_reg ; /* CAN_MCR */ | |
| volatile uint32_t mailbox_in_use ; | |
| volatile int size ; | |
| } SCanTransfer ; | |
| /*---------------------------------------------------------------------------- | |
| * Exported functions | |
| *----------------------------------------------------------------------------*/ | |
| extern uint32_t CAN_Init( Can* pCan, uint32_t dwMCK, uint32_t dwBaudrate, SCanTransfer *pTransfer) ; | |
| extern void CAN_Disable( Can* pCan ) ; | |
| extern void CAN_ResetAllMailbox( Can* pCan, SCanTransfer* pTransfer) ; | |
| extern void CAN_TransferReset( Can* pCan, SCanTransfer* pTransfer ) ; | |
| extern void CAN_InitMailboxRegisters( Can* pCan, SCanTransfer* pTransfer ) ; | |
| extern uint32_t CAN_Write( Can* pCan, SCanTransfer* pTransfer ) ; | |
| extern uint32_t CAN_Read( Can* pCan, SCanTransfer* pTransfer ) ; | |
| extern uint32_t CAN_IsInIdle( Can* pCan, SCanTransfer* pTransfer ) ; | |
| extern void CAN_Handler( Can* pCan, SCanTransfer* pTransfer ) ; | |
| #endif /* _CAN_ */ | |