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41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2015 MediaTek Inc.
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*/
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#ifndef _MEDIA_VIDEOBUF2_DMA_CONTIG_H
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#define _MEDIA_VIDEOBUF2_DMA_CONTIG_H
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#include <media/videobuf2-v4l2.h>
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#include <linux/dma-mapping.h>
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static inline dma_addr_t
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vb2_dma_contig_plane_dma_addr(struct vb2_buffer *vb, unsigned int plane_no)
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{
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dma_addr_t *addr = vb2_plane_cookie(vb, plane_no);
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return *addr;
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}
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int vb2_dpe_dma_contig_set_max_seg_size(struct device *dev, unsigned int size);
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void vb2_dpe_dma_contig_clear_max_seg_size(struct device *dev);
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extern const struct vb2_mem_ops vb2_dpe_dma_contig_memops;
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void *vb2_dc_alloc(struct device *dev, unsigned long attrs,
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unsigned long size, enum dma_data_direction dma_dir,
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gfp_t gfp_flags);
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struct dma_buf *vb2_dc_get_dmabuf(void *buf_priv, unsigned long flags);
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void *vb2_dc_attach_dmabuf(struct device *dev, struct dma_buf *dbuf,
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unsigned long size, enum dma_data_direction dma_dir);
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int vb2_dc_map_dmabuf(void *mem_priv);
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void vb2_dc_unmap_dmabuf(void *mem_priv);
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void vb2_dc_detach_dmabuf(void *mem_priv);
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void vb2_dc_put(void *buf_priv);
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//extern struct frame_vector *vb2_create_framevec(unsigned long start,
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// unsigned long length,
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// bool write);
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#endif
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