/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2018 BayLibre, SAS
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* Author: Maxime Jourdan <mjourdan@baylibre.com>
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*/
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#ifndef __MESON_VDEC_HELPERS_H_
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#define __MESON_VDEC_HELPERS_H_
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#include "vdec.h"
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/**
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* amvdec_set_canvases() - Map VB2 buffers to canvases
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*
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* @sess: current session
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* @reg_base: Registry bases of where to write the canvas indexes
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* @reg_num: number of contiguous registers after each reg_base (including it)
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*/
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int amvdec_set_canvases(struct amvdec_session *sess,
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u32 reg_base[], u32 reg_num[]);
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/* Helpers to read/write to the various IPs (DOS, PARSER) */
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u32 amvdec_read_dos(struct amvdec_core *core, u32 reg);
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void amvdec_write_dos(struct amvdec_core *core, u32 reg, u32 val);
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void amvdec_write_dos_bits(struct amvdec_core *core, u32 reg, u32 val);
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void amvdec_clear_dos_bits(struct amvdec_core *core, u32 reg, u32 val);
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u32 amvdec_read_parser(struct amvdec_core *core, u32 reg);
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void amvdec_write_parser(struct amvdec_core *core, u32 reg, u32 val);
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u32 amvdec_am21c_body_size(u32 width, u32 height);
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u32 amvdec_am21c_head_size(u32 width, u32 height);
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u32 amvdec_am21c_size(u32 width, u32 height);
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/**
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* amvdec_dst_buf_done_idx() - Signal that a buffer is done decoding
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*
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* @sess: current session
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* @buf_idx: hardware buffer index
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* @offset: VIFIFO bitstream offset corresponding to the buffer
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* @field: V4L2 interlaced field
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*/
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void amvdec_dst_buf_done_idx(struct amvdec_session *sess, u32 buf_idx,
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u32 offset, u32 field);
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void amvdec_dst_buf_done(struct amvdec_session *sess,
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struct vb2_v4l2_buffer *vbuf, u32 field);
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void amvdec_dst_buf_done_offset(struct amvdec_session *sess,
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struct vb2_v4l2_buffer *vbuf,
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u32 offset, u32 field, bool allow_drop);
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/**
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* amvdec_add_ts() - Add a timestamp to the list
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*
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* @sess: current session
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* @ts: timestamp to add
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* @offset: offset in the VIFIFO where the associated packet was written
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* @flags the vb2_v4l2_buffer flags
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*/
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int amvdec_add_ts(struct amvdec_session *sess, u64 ts,
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struct v4l2_timecode tc, u32 offset, u32 flags);
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void amvdec_remove_ts(struct amvdec_session *sess, u64 ts);
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/**
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* amvdec_set_par_from_dar() - Set Pixel Aspect Ratio from Display Aspect Ratio
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*
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* @sess: current session
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* @dar_num: numerator of the DAR
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* @dar_den: denominator of the DAR
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*/
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void amvdec_set_par_from_dar(struct amvdec_session *sess,
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u32 dar_num, u32 dar_den);
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/**
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* amvdec_src_change() - Notify new resolution/DPB size to the core
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*
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* @sess: current session
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* @width: picture width detected by the hardware
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* @height: picture height detected by the hardware
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* @dpb_size: Decoded Picture Buffer size (= amount of buffers for decoding)
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*/
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void amvdec_src_change(struct amvdec_session *sess, u32 width,
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u32 height, u32 dpb_size);
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/**
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* amvdec_abort() - Abort the current decoding session
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*
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* @sess: current session
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*/
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void amvdec_abort(struct amvdec_session *sess);
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#endif
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