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/* linux/drivers/media/video/exynos/tv/mixer_vb2.c
*
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* Videobuf2 allocator operations file
*
* 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.
*/
#include <linux/platform_device.h>
#if defined(CONFIG_VIDEOBUF2_CMA_PHYS)
#include <media/videobuf2-cma-phys.h>
#elif defined(CONFIG_VIDEOBUF2_ION)
#include <media/videobuf2-ion.h>
#endif
#include "mixer.h"
#if defined(CONFIG_VIDEOBUF2_CMA_PHYS)
void *mxr_cma_init(struct mxr_device *mdev)
{
return vb2_cma_phys_init(mdev->dev, NULL, 0, false);
}
int mxr_cma_resume(void *alloc_ctx)
{
return 1;
}
void mxr_cma_suspend(void *alloc_ctx){}
void mxr_cma_set_cacheable(void *alloc_ctx, bool cacheable){}
int mxr_cma_cache_flush(struct vb2_buffer *vb, u32 plane_no)
{
return 0;
}
const struct mxr_vb2 mxr_vb2_cma = {
.ops = &vb2_cma_phys_memops,
.init = mxr_cma_init,
.cleanup = vb2_cma_phys_cleanup,
.plane_addr = vb2_cma_phys_plane_paddr,
.resume = mxr_cma_resume,
.suspend = mxr_cma_suspend,
.cache_flush = mxr_cma_cache_flush,
.set_cacheable = mxr_cma_set_cacheable,
};
#elif defined(CONFIG_VIDEOBUF2_ION)
void *mxr_ion_init(struct mxr_device *mdev)
{
return vb2_ion_create_context(mdev->dev, SZ_4K,
VB2ION_CTX_VMCONTIG | VB2ION_CTX_UNCACHED | VB2ION_CTX_IOMMU);
}
unsigned long mxr_ion_plane_addr(struct vb2_buffer *vb, u32 plane_no)
{
void *cookie = vb2_plane_cookie(vb, plane_no);
dma_addr_t dva = 0;
WARN_ON(vb2_ion_dma_address(cookie, &dva) != 0);
return dva;
}
const struct mxr_vb2 mxr_vb2_ion = {
.ops = &vb2_ion_memops,
.init = mxr_ion_init,
.cleanup = vb2_ion_destroy_context,
.plane_addr = mxr_ion_plane_addr,
.resume = vb2_ion_attach_iommu,
.suspend = vb2_ion_detach_iommu,
.cache_flush = vb2_ion_cache_flush,
.set_cacheable = vb2_ion_set_cached,
};
#endif
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