53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
/* Copyright (c) 2008-2009, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __MSM_DMA_TEST__
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#define __MSM_DMA_TEST__
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#include <linux/ioctl.h>
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#define MSM_DMA_IOC_MAGIC 0x83
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/* The testing driver can manage a series of buffers. These are
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* allocated and freed using these calls. */
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struct msm_dma_alloc_req {
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int size; /* Size of this request, in bytes. */
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int bufnum; /* OUT: Number of buffer allocated. */
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};
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#define MSM_DMA_IOALLOC _IOWR(MSM_DMA_IOC_MAGIC, 2, struct msm_dma_alloc_req)
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/* Free the specified buffer. */
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#define MSM_DMA_IOFREE _IOW(MSM_DMA_IOC_MAGIC, 3, int)
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/* Free all used buffers. */
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#define MSM_DMA_IOFREEALL _IO(MSM_DMA_IOC_MAGIC, 7)
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/* Read/write data into kernel buffer. */
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struct msm_dma_bufxfer {
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void *data;
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int size;
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int bufnum;
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};
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#define MSM_DMA_IOWBUF _IOW(MSM_DMA_IOC_MAGIC, 4, struct msm_dma_bufxfer)
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#define MSM_DMA_IORBUF _IOW(MSM_DMA_IOC_MAGIC, 5, struct msm_dma_bufxfer)
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/* Use the data mover to copy from one buffer to another. */
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struct msm_dma_scopy {
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int srcbuf;
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int destbuf;
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int size;
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};
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#define MSM_DMA_IOSCOPY _IOW(MSM_DMA_IOC_MAGIC, 6, struct msm_dma_scopy)
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#endif /* __MSM_DMA_TEST__ */
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