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/*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* Videobuf2 bridge driver file for EXYNOS Image Rotator driver
*
* 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>
#include "rotator.h"
#if defined(CONFIG_VIDEOBUF2_CMA_PHYS)
void *rot_cma_init(struct rot_dev *rot)
{
return vb2_cma_phys_init(rot->dev, NULL, 0, false);
}
int rot_cma_resume(void *alloc_ctx)
{
return 1;
}
void rot_cma_suspend(void *alloc_ctx) {}
void rot_cma_set_cacheable(void *alloc_ctx, bool cacheable) {}
int rot_cma_cache_flush(struct vb2_buffer *vb, u32 plane_no) { return 0; }
const struct rot_vb2 rot_vb2_cma = {
.ops = &vb2_cma_phys_memops,
.init = rot_cma_init,
.cleanup = vb2_cma_phys_cleanup,
.plane_addr = vb2_cma_phys_plane_paddr,
.resume = rot_cma_resume,
.suspend = rot_cma_suspend,
.cache_flush = rot_cma_cache_flush,
.set_cacheable = rot_cma_set_cacheable,
};
#elif defined(CONFIG_VIDEOBUF2_ION)
void *rot_ion_init(struct rot_dev *rot)
{
return vb2_ion_create_context(rot->dev, SZ_1M,
VB2ION_CTX_PHCONTIG | VB2ION_CTX_IOMMU | VB2ION_CTX_UNCACHED);
}
static unsigned long rot_vb2_plane_addr(struct vb2_buffer *vb, u32 plane_no)
{
void *cookie = vb2_plane_cookie(vb, plane_no);
dma_addr_t dma_addr = 0;
WARN_ON(vb2_ion_dma_address(cookie, &dma_addr) != 0);
return (unsigned long)dma_addr;
}
const struct rot_vb2 rot_vb2_ion = {
.ops = &vb2_ion_memops,
.init = rot_ion_init,
.cleanup = vb2_ion_destroy_context,
.plane_addr = rot_vb2_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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