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/******************************************************************************
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* *
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* License Agreement *
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* *
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* Copyright (c) 2004 Altera Corporation, San Jose, California, USA. *
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* All rights reserved. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the "Software"), *
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* to deal in the Software without restriction, including without limitation *
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
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* and/or sell copies of the Software, and to permit persons to whom the *
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* Software is furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in *
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* all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
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* DEALINGS IN THE SOFTWARE. *
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* *
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* This agreement shall be governed in all respects by the laws of the State *
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* of California and by the laws of the United States of America. *
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* *
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* Altera does not recommend, suggest or require that this reference design *
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* file be used in conjunction or combination with any other product. *
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******************************************************************************/
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#include "sys/alt_dma.h"
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#include "sys/alt_errno.h"
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#include "priv/alt_file.h"
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/*
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* The list of registered receive channels.
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*/
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ALT_LLIST_HEAD(alt_dma_txchan_list);
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/*
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* alt_dma_txchan_open() is used to obtain an "alt_dma_txchan" descriptor for
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* a DMA transmit device. The name is the name of the associated physical
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* device (e.g. "/dev/dma_0").
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*
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* The return value will be NULL on failure, and non-NULL otherwise.
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*/
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alt_dma_txchan alt_dma_txchan_open (const char* name)
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{
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alt_dma_txchan dev;
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dev = (alt_dma_txchan) alt_find_dev (name, &alt_dma_txchan_list);
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if (!dev)
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{
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ALT_ERRNO = ENODEV;
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}
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return dev;
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}
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