68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
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/*
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* Copyright (c) 2007-2018 Allwinnertech Co., Ltd.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _DI_UTILS_H_
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#define _DI_UTILS_H_
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#include <linux/types.h>
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#include <linux/dma-buf.h>
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#define MAX_DI_MEM_INDEX 100
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struct info_mem {
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unsigned long phy_addr;
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void *virt_addr;
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__u32 b_used;
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__u32 mem_len;
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};
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struct di_dma_item {
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struct dma_buf *buf;
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struct dma_buf_attachment *attach;
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struct sg_table *sgt_org;
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struct sg_table *sgt_bak;
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enum dma_data_direction dir;
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dma_addr_t dma_addr;
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};
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struct di_mapped_buf {
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u32 size_request;
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u32 size_alloced;
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void *vir_addr;
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dma_addr_t dma_addr;
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};
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void di_utils_set_dma_dev(struct device *dev);
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int di_mem_release(__u32 sel);
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int di_mem_request(__u32 size, u64 *phyaddr);
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struct di_dma_item *di_dma_buf_self_map(
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int fd, enum dma_data_direction dir);
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void di_dma_buf_self_unmap(struct di_dma_item *item);
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struct di_mapped_buf *di_dma_buf_alloc_map(u32 size);
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void di_dma_buf_unmap_free(struct di_mapped_buf *mbuf);
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enum {
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DI_UVSEQ_UV = 0, /* uv-combined: LSB U0V0U1V1 MSB */
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DI_UVSEQ_VU = 1, /* uv-combined: LSB V0U0V1U1 MSB */
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};
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const char *di_format_to_string(u32 format);
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u32 di_format_get_planar_num(u32 format);
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u32 di_format_get_uvseq(u32 format);
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#endif /* #ifndef _DI_UTILS_H_ */
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