| Christina Quast | 637ace9 | 2014-11-28 13:28:37 +0100 | [diff] [blame] | 1 | /* ----------------------------------------------------------------------------
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| 2 | * ATMEL Microcontroller Software Support
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| 3 | * ----------------------------------------------------------------------------
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| 4 | * Copyright (c) 2009, Atmel Corporation
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| 5 | *
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| 6 | * All rights reserved.
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| 7 | *
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| 8 | * Redistribution and use in source and binary forms, with or without
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| 9 | * modification, are permitted provided that the following conditions are met:
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| 10 | *
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| 11 | * - Redistributions of source code must retain the above copyright notice,
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| 12 | * this list of conditions and the disclaimer below.
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| 13 | *
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| 14 | * Atmel's name may not be used to endorse or promote products derived from
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| 15 | * this software without specific prior written permission.
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| 16 | *
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| 17 | * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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| 20 | * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 22 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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| 23 | * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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| 24 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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| 25 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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| 26 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | * ----------------------------------------------------------------------------
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| 28 | */
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| 29 |
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| 30 | /**
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| 31 | * \file
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| 32 | *
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| 33 | * Provide a routine for asynchronous transfer.
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| 34 | *
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| 35 | */
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| 36 |
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| 37 | #ifndef _ASYNC_
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| 38 | #define _ASYNC_
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| 39 |
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| 40 |
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| 41 | /*----------------------------------------------------------------------------
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| 42 | * Headers
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| 43 | *----------------------------------------------------------------------------*/
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| 44 | #include <stdint.h>
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| 45 |
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| 46 | /*----------------------------------------------------------------------------
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| 47 | * Definition
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| 48 | *----------------------------------------------------------------------------*/
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| 49 | /** Transfer is still pending.*/
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| 50 | #define ASYNC_STATUS_PENDING 0xFF
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| 51 |
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| 52 | #ifdef __cplusplus
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| 53 | extern "C" {
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| 54 | #endif
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| 55 |
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| 56 | /*----------------------------------------------------------------------------
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| 57 | * Type
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| 58 | *----------------------------------------------------------------------------*/
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| 59 | /** \brief Asynchronous transfer descriptor. */
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| 60 | typedef struct _Async
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| 61 | {
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| 62 | /** Asynchronous transfer status.*/
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| 63 | volatile uint8_t status ;
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| 64 | /** Callback function to invoke when transfer completes or fails.*/
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| 65 | void *callback ;
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| 66 | /** Driver storage area; do not use.*/
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| 67 | uint32_t pStorage[4] ;
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| 68 | } Async ;
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| 69 |
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| 70 | /*----------------------------------------------------------------------------
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| 71 | * Global functions
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| 72 | *----------------------------------------------------------------------------*/
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| 73 | extern uint32_t ASYNC_IsFinished( Async* pAsync ) ;
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| 74 |
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| 75 | #ifdef __cplusplus
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| 76 | }
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| 77 | #endif
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| 78 |
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| 79 | #endif /* #ifndef _ASYNC_ */
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| 80 |
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