dma.h
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上传日期:2013-02-24
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- /*
- * linux/include/asm-arm/arch-tbox/dma.h
- *
- * Architecture DMA routines. We have to contend with the bizarre DMA
- * machine built into the Tbox hardware.
- *
- * Copyright (C) 1998 Philip Blundell
- */
- /*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
- /*
- * DMA channel definitions. Some of these are physically strange but
- * we sort it out inside dma.c so the user never has to care. The
- * exception is the double-buffering which we can't really abstract
- * away sensibly.
- */
- #define DMA_VIDEO 0
- #define DMA_MPEG_B 1
- #define DMA_AUDIO_B 2
- #define DMA_ASHRX_B 3
- #define DMA_ASHTX 4
- #define DMA_MPEG 5
- #define DMA_AUDIO 6
- #define DMA_ASHRX 7
- #define MAX_DMA_CHANNELS 0 /* XXX */
- /*
- * This is the maximum DMA address that can be DMAd to.
- */
- #define MAX_DMA_ADDRESS 0xffffffff