1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2018 BayLibre, SAS
* Author: Maxime Jourdan <mjourdan@baylibre.com>
*/
#ifndef __MESON_VDEC_HELPERS_H_
#define __MESON_VDEC_HELPERS_H_
#include "vdec.h"
/**
* amvdec_set_canvases() - Map VB2 buffers to canvases
*
* @sess: current session
* @reg_base: Registry bases of where to write the canvas indexes
* @reg_num: number of contiguous registers after each reg_base (including it)
*/
int amvdec_set_canvases(struct amvdec_session *sess,
u32 reg_base[], u32 reg_num[]);
/* Helpers to read/write to the various IPs (DOS, PARSER) */
u32 amvdec_read_dos(struct amvdec_core *core, u32 reg);
void amvdec_write_dos(struct amvdec_core *core, u32 reg, u32 val);
void amvdec_write_dos_bits(struct amvdec_core *core, u32 reg, u32 val);
void amvdec_clear_dos_bits(struct amvdec_core *core, u32 reg, u32 val);
u32 amvdec_read_parser(struct amvdec_core *core, u32 reg);
void amvdec_write_parser(struct amvdec_core *core, u32 reg, u32 val);
/**
* amvdec_dst_buf_done_idx() - Signal that a buffer is done decoding
*
* @sess: current session
* @buf_idx: hardware buffer index
* @offset: VIFIFO bitstream offset corresponding to the buffer
* @field: V4L2 interlaced field
*/
void amvdec_dst_buf_done_idx(struct amvdec_session *sess, u32 buf_idx,
u32 offset, u32 field);
void amvdec_dst_buf_done(struct amvdec_session *sess,
struct vb2_v4l2_buffer *vbuf, u32 field);
void amvdec_dst_buf_done_offset(struct amvdec_session *sess,
struct vb2_v4l2_buffer *vbuf,
u32 offset, u32 field, bool allow_drop);
/**
* amvdec_add_ts_reorder() - Add a timestamp to the list in chronological order
*
* @sess: current session
* @ts: timestamp to add
* @offset: offset in the VIFIFO where the associated packet was written
*/
void amvdec_add_ts_reorder(struct amvdec_session *sess, u64 ts, u32 offset);
void amvdec_remove_ts(struct amvdec_session *sess, u64 ts);
/**
* amvdec_set_par_from_dar() - Set Pixel Aspect Ratio from Display Aspect Ratio
*
* @sess: current session
* @dar_num: numerator of the DAR
* @dar_den: denominator of the DAR
*/
void amvdec_set_par_from_dar(struct amvdec_session *sess,
u32 dar_num, u32 dar_den);
/**
* amvdec_src_change() - Notify new resolution/DPB size to the core
*
* @sess: current session
* @width: picture width detected by the hardware
* @height: picture height detected by the hardware
* @dpb_size: Decoded Picture Buffer size (= amount of buffers for decoding)
*/
void amvdec_src_change(struct amvdec_session *sess, u32 width,
u32 height, u32 dpb_size);
/**
* amvdec_abort() - Abort the current decoding session
*
* @sess: current session
*/
void amvdec_abort(struct amvdec_session *sess);
#endif
|