From 044ad7c3987460ede48ff27afd6bdb0ca05a0432 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Mon, 4 Jul 2011 20:52:54 +0200 Subject: import at91lib from at91lib_20100901_softpack_1_9_v_1_0_svn_v15011 it's sad to see that atmel doesn't publish their svn repo or has a centralized location or even puts proper version/release info into the library itself --- peripherals/can/can.h | 113 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100644 peripherals/can/can.h (limited to 'peripherals/can/can.h') diff --git a/peripherals/can/can.h b/peripherals/can/can.h new file mode 100644 index 0000000..63a83b3 --- /dev/null +++ b/peripherals/can/can.h @@ -0,0 +1,113 @@ +/* ---------------------------------------------------------------------------- + * 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 + -- cgit v1.2.3