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/* include/media/videobuf2-ion.h
*
* Copyright 2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* Definition of Android ION memory allocator for videobuf2
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _MEDIA_VIDEOBUF2_ION_H
#define _MEDIA_VIDEOBUF2_ION_H
#include <linux/ion.h>
#include <media/videobuf2-core.h>
#include <media/videobuf2-memops.h>
struct vb2_ion {
struct device *dev;
const char *name;
unsigned long align;
bool contig;
bool cacheable;
};
struct vb2_drv {
struct device *dev;
bool use_mmu;
};
static inline unsigned long vb2_ion_plane_dvaddr(struct vb2_buffer *vb, unsigned int plane_no)
{
return (unsigned long)vb2_plane_cookie(vb, plane_no);
}
static inline unsigned long vb2_ion_plane_kvaddr(struct vb2_buffer *vb, unsigned int plane_no)
{
return (unsigned long)vb2_plane_vaddr(vb, plane_no);
}
void *vb2_ion_init(struct vb2_ion *ion, struct vb2_drv *drv);
void vb2_ion_cleanup(void *alloc_ctx);
void **vb2_ion_init_multi(unsigned int num_planes, struct vb2_ion *ion, struct vb2_drv *drv);
void vb2_ion_cleanup_multi(void **alloc_ctxes);
void vb2_ion_set_sharable(void *alloc_ctx, bool sharable);
void vb2_ion_set_cacheable(void *alloc_ctx, bool cacheable);
bool vb2_ion_get_cacheable(void *alloc_ctx);
int vb2_ion_cache_flush(struct vb2_buffer *vb, u32 num_planes);
int vb2_ion_cache_inv(struct vb2_buffer *vb, u32 num_planes);
void vb2_ion_suspend(void *alloc_ctx);
void vb2_ion_resume(void *alloc_ctx);
extern const struct vb2_mem_ops vb2_ion_memops;
extern struct ion_device *ion_exynos;
#endif
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