Linux Kernel  3.7.1
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dma.h
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1 /*
2  * linux/arch/unicore32/include/mach/dma.h
3  *
4  * Code specific to PKUnity SoC and UniCore ISA
5  *
6  * Copyright (C) 2001-2010 GUAN Xue-tao
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License version 2 as
10  * published by the Free Software Foundation.
11  */
12 #ifndef __MACH_PUV3_DMA_H__
13 #define __MACH_PUV3_DMA_H__
14 
15 /*
16  * The PKUnity has six internal DMA channels.
17  */
18 #define MAX_DMA_CHANNELS 6
19 
20 typedef enum {
25 
26 /*
27  * DMA registration
28  */
29 
30 extern int puv3_request_dma(char *name,
32  void (*irq_handler)(int, void *),
33  void (*err_handler)(int, void *),
34  void *data);
35 
36 extern void puv3_free_dma(int dma_ch);
37 
38 static inline void puv3_stop_dma(int ch)
39 {
41 }
42 
43 static inline void puv3_resume_dma(int ch)
44 {
46 }
47 
48 #endif /* __MACH_PUV3_DMA_H__ */