summaryrefslogtreecommitdiff
path: root/arch/arm/mach-msm/include/mach/dma_test.h
blob: 7f7dfe38a3508388698b0583c38369f404b9bc74 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
/* Copyright (c) 2008-2009, Code Aurora Forum. 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 following disclaimer.
 *     * 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.
 *     * Neither the name of Code Aurora nor
 *       the names of its contributors may be used to endorse or promote
 *       products derived from this software without specific prior written
 *       permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER OR
 * CONTRIBUTORS 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 __MSM_DMA_TEST__
#define __MSM_DMA_TEST__

#include <linux/ioctl.h>

#define MSM_DMA_IOC_MAGIC     0x83

/* The testing driver can manage a series of buffers.  These are
 * allocated and freed using these calls. */
struct msm_dma_alloc_req {
	int size;		/* Size of this request, in bytes. */
	int bufnum;		/* OUT: Number of buffer allocated. */
};
#define MSM_DMA_IOALLOC _IOWR(MSM_DMA_IOC_MAGIC, 2, struct msm_dma_alloc_req)

/* Free the specified buffer. */
#define MSM_DMA_IOFREE _IOW(MSM_DMA_IOC_MAGIC, 3, int)

/* Free all used buffers. */
#define MSM_DMA_IOFREEALL  _IO(MSM_DMA_IOC_MAGIC, 7)

/* Read/write data into kernel buffer. */
struct msm_dma_bufxfer {
	void *data;
	int size;
	int bufnum;
};
#define MSM_DMA_IOWBUF _IOW(MSM_DMA_IOC_MAGIC, 4, struct msm_dma_bufxfer)
#define MSM_DMA_IORBUF _IOW(MSM_DMA_IOC_MAGIC, 5, struct msm_dma_bufxfer)

/* Use the data mover to copy from one buffer to another. */
struct msm_dma_scopy {
	int srcbuf;
	int destbuf;
	int size;
};
#define MSM_DMA_IOSCOPY _IOW(MSM_DMA_IOC_MAGIC, 6, struct msm_dma_scopy)

#endif /* __MSM_DMA_TEST__ */