51 lines
1.2 KiB
C
Executable file
51 lines
1.2 KiB
C
Executable file
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (c) 2019 MediaTek Inc.
|
|
* Author: Rick Chang <rick.chang@mediatek.com>
|
|
*/
|
|
|
|
|
|
#ifndef _MEDIA_MTK_DMA_CONTIG_H
|
|
#define _MEDIA_MTK_DMA_CONTIG_H
|
|
|
|
#include <media/videobuf2-v4l2.h>
|
|
#include <linux/dma-mapping.h>
|
|
#include <media/videobuf2-v4l2.h>
|
|
#include <media/videobuf2-memops.h>
|
|
|
|
struct vb2_dc_buf {
|
|
struct device *dev;
|
|
void *vaddr;
|
|
unsigned long size;
|
|
void *cookie;
|
|
dma_addr_t dma_addr;
|
|
unsigned long attrs;
|
|
enum dma_data_direction dma_dir;
|
|
struct sg_table *dma_sgt;
|
|
struct frame_vector *vec;
|
|
|
|
/* MMAP related */
|
|
struct vb2_vmarea_handler handler;
|
|
atomic_t refcount;
|
|
struct sg_table *sgt_base;
|
|
|
|
/* DMABUF related */
|
|
struct dma_buf_attachment *db_attach;
|
|
};
|
|
|
|
static inline dma_addr_t
|
|
mtk_dma_contig_plane_dma_addr(struct vb2_buffer *vb, unsigned int plane_no)
|
|
{
|
|
dma_addr_t *addr = vb2_plane_cookie(vb, plane_no);
|
|
|
|
return *addr;
|
|
}
|
|
|
|
int mtk_dma_contig_set_max_seg_size(struct device *dev, unsigned int size);
|
|
void mtk_dma_contig_clear_max_seg_size(struct device *dev);
|
|
void mtk_dma_contig_set_secure_mode(struct device *dev, int secure_mode);
|
|
|
|
extern const struct vb2_mem_ops mtk_dma_contig_memops;
|
|
|
|
#endif
|