diff options
Diffstat (limited to 'arch/arm/mach-msm/include/mach/dma_test.h')
-rw-r--r-- | arch/arm/mach-msm/include/mach/dma_test.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/arch/arm/mach-msm/include/mach/dma_test.h b/arch/arm/mach-msm/include/mach/dma_test.h new file mode 100644 index 000000000000..7f7dfe38a350 --- /dev/null +++ b/arch/arm/mach-msm/include/mach/dma_test.h @@ -0,0 +1,67 @@ +/* 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__ */ |