109 lines
2.6 KiB
C
Executable File
109 lines
2.6 KiB
C
Executable File
/*
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* Copyright (c) 2017 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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*
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* Header file for Exynos Repeater driver
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _EXYNOS_REPEATER_H_
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#define _EXYNOS_REPEATER_H_
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#include <linux/dma-buf.h>
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#define MAX_SHARED_BUF_NUM 3
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/**
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* struct shared_buffer_info
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*
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* @pixel_format : pixel_format of bufs
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* @width : width of bufs
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* @height : height of bufs
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* @buffer_count : valid buffer count of bufs
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* @bufs : pointer of struct dma_buf for buffer sharing.
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*/
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struct shared_buffer_info {
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int pixel_format;
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int width;
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int height;
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int buffer_count;
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struct dma_buf *bufs[MAX_SHARED_BUF_NUM];
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};
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/**
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* hwfc_request_buffer - Get infomation of shared buffer
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* @info: information of shared buffer
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* owner: G2D is 0, MFC is 1
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*
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* G2D/MFC calls it to get shared buffer information.
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* Repeater increments reference count on the dma-buf.
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* G2D/MFC should decrement reference count on the dma-buf.
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* If repeater has valid buffer, it returns a zero.
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* If repeater don't have valid buffer, it returns a errno.
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*
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*/
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#ifdef CONFIG_VIDEO_EXYNOS_REPEATER
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int hwfc_request_buffer(struct shared_buffer_info *info, int owner);
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#else
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static inline int hwfc_request_buffer(struct shared_buffer_info *info, int owner)
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{
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return -1;
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}
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#endif
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/**
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* hwfc_get_valid_buffer - Get shared buf idx for capture output
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* @buf_idx: shared buf idx for capture output
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*
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* G2D call it to get shared buffer index for capture output.
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* If repeater has valid buffer for capture output, it returns a zero.
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* If repeater don't have valid buffer for capture output, it returns a errno.
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*
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*/
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#ifdef CONFIG_VIDEO_EXYNOS_REPEATER
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int hwfc_get_valid_buffer(int *buf_idx);
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#else
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static inline int hwfc_get_valid_buffer(int *buf_idx)
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{
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return -1;
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}
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#endif
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/**
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* hwfc_set_valid_buffer - Set shared buf idx & job id for capture output
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* @buf_idx : shared buf idx for capture output
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* @capture_idx : hwfc capture idx
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*
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* G2D calls it after G2D H/W starts capture.
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*
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*/
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#ifdef CONFIG_VIDEO_EXYNOS_REPEATER
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int hwfc_set_valid_buffer(int buf_idx, int capture_idx);
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#else
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static inline int hwfc_set_valid_buffer(int buf_idx, int capture_idx)
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{
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return -1;
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}
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#endif
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/**
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* hwfc_encoding_done - Set ret about encoding
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* @encoding_ret : ret about encoding
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*
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* MFC calls it when encoding is done.
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*
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*/
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#ifdef CONFIG_VIDEO_EXYNOS_REPEATER
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int hwfc_encoding_done(int encoding_ret);
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#else
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static inline int hwfc_encoding_done(int encoding_ret)
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{
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return -1;
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}
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#endif
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#endif /* _EXYNOS_REPEATER_H_ */
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