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 --- drivers/async/async.c | 48 +++++++++++++++++++++++++++++++++++++ drivers/async/async.h | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 113 insertions(+) create mode 100644 drivers/async/async.c create mode 100644 drivers/async/async.h (limited to 'drivers/async') diff --git a/drivers/async/async.c b/drivers/async/async.c new file mode 100644 index 0000000..618af33 --- /dev/null +++ b/drivers/async/async.c @@ -0,0 +1,48 @@ +/* ---------------------------------------------------------------------------- + * 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. + * ---------------------------------------------------------------------------- + */ + +//------------------------------------------------------------------------------ +// Headers +//------------------------------------------------------------------------------ + +#include "async.h" + +//------------------------------------------------------------------------------ +// Global functions +//------------------------------------------------------------------------------ + +//------------------------------------------------------------------------------ +/// Returns 1 if the given transfer has ended; otherwise returns 0. +/// \param pAsync Pointer to an Async instance. +//------------------------------------------------------------------------------ +unsigned char ASYNC_IsFinished(Async *pAsync) +{ + return (pAsync->status != ASYNC_STATUS_PENDING); +} + diff --git a/drivers/async/async.h b/drivers/async/async.h new file mode 100644 index 0000000..e359895 --- /dev/null +++ b/drivers/async/async.h @@ -0,0 +1,65 @@ +/* ---------------------------------------------------------------------------- + * 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 ASYNC_H +#define ASYNC_H + +//------------------------------------------------------------------------------ +// Global definitions +//------------------------------------------------------------------------------ + +/// Transfer is still pending. +#define ASYNC_STATUS_PENDING 0xFF + +//------------------------------------------------------------------------------ +// Global types +//------------------------------------------------------------------------------ + +//------------------------------------------------------------------------------ +/// Asynchronous transfer descriptor. +//------------------------------------------------------------------------------ +typedef struct _Async { + + // Asynchronous transfer status. + volatile unsigned char status; + // Callback function to invoke when transfer completes or fails. + void *callback; + // Driver storage area; do not use. + unsigned int pStorage[4]; + +} Async; + +//------------------------------------------------------------------------------ +// Global functions +//------------------------------------------------------------------------------ + +extern unsigned char ASYNC_IsFinished(Async *pAsync); + +#endif //#ifndef ASYNC_H + -- cgit v1.2.3