summaryrefslogtreecommitdiff
path: root/MakefileBasedBuild/Atmel/sam3x/sam3x-ek/libraries/usb_device/utils/fifo/enhc_fifo/fifo.c
diff options
context:
space:
mode:
Diffstat (limited to 'MakefileBasedBuild/Atmel/sam3x/sam3x-ek/libraries/usb_device/utils/fifo/enhc_fifo/fifo.c')
-rw-r--r--MakefileBasedBuild/Atmel/sam3x/sam3x-ek/libraries/usb_device/utils/fifo/enhc_fifo/fifo.c76
1 files changed, 0 insertions, 76 deletions
diff --git a/MakefileBasedBuild/Atmel/sam3x/sam3x-ek/libraries/usb_device/utils/fifo/enhc_fifo/fifo.c b/MakefileBasedBuild/Atmel/sam3x/sam3x-ek/libraries/usb_device/utils/fifo/enhc_fifo/fifo.c
deleted file mode 100644
index aee1b15..0000000
--- a/MakefileBasedBuild/Atmel/sam3x/sam3x-ek/libraries/usb_device/utils/fifo/enhc_fifo/fifo.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/*This file is prepared for Doxygen automatic documentation generation.*/
-/*! \file ******************************************************************
- *
- * \brief This file controls the software FIFO management.
- *
- * These functions manages FIFOs thanks to simple a API. The FIFO can
- * be 100% full thanks to a double-index range implementation. For example,
- * a FIFO of 4 elements can be implemented: the FIFO can really hold up to 4
- * elements.
- * This is particurly well suited for any kind of application needing a lot of
- * small FIFO.
- *
- * - Compiler: IAR EWAVR32 and GNU GCC for AVR32
- * - Supported devices: All AVR32 devices can be used.
- * - AppNote:
- *
- * \author Atmel Corporation: http://www.atmel.com \n
- * Support and FAQ: http://support.atmel.no/
- *
- ***************************************************************************/
-
-/* Copyright (c) 2010 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:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * 3. The name of Atmel may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * 4. This software may only be redistributed and used in connection with an Atmel
- * AVR product.
- *
- * 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
- * EXPRESSLY AND SPECIFICALLY 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
- *
- */
-
-#include "compiler.h"
-#include "fifo.h"
-
-int fifo_init(fifo_desc_t *fifo_desc, void *buffer, uint16_t size)
-{
- uint16_t tmp;
-
- // Check the size parameter. It must be a 2-power.
- tmp = size >> ctz(size);
- if (tmp != 1) {
- return FIFO_ERROR;
- }
-
- // Fifo starts empty.
- fifo_desc->rd_id = fifo_desc->wr_id = 0;
-
- // Save the size parameter.
- fifo_desc->size = size;
-
- // Save the buffer pointer
- fifo_desc->buffer.u8ptr = buffer;
-
- return FIFO_OK;
-}