1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (C) STMicroelectronics SA 2014
4 * Author: Benjamin Gaignard <benjamin.gaignard@st.com> for STMicroelectronics.
5 */
6
7#ifndef _STI_PLANE_H_
8#define _STI_PLANE_H_
9
10#include <drm/drm_atomic_helper.h>
11
12#define to_sti_plane(x) container_of(x, struct sti_plane, drm_plane)
13
14#define STI_PLANE_TYPE_SHIFT 8
15#define STI_PLANE_TYPE_MASK (~((1 << STI_PLANE_TYPE_SHIFT) - 1))
16
17enum sti_plane_type {
18 STI_GDP = 1 << STI_PLANE_TYPE_SHIFT,
19 STI_VDP = 2 << STI_PLANE_TYPE_SHIFT,
20 STI_CUR = 3 << STI_PLANE_TYPE_SHIFT,
21 STI_BCK = 4 << STI_PLANE_TYPE_SHIFT
22};
23
24enum sti_plane_id_of_type {
25 STI_ID_0 = 0,
26 STI_ID_1 = 1,
27 STI_ID_2 = 2,
28 STI_ID_3 = 3
29};
30
31enum sti_plane_desc {
32 STI_GDP_0 = STI_GDP | STI_ID_0,
33 STI_GDP_1 = STI_GDP | STI_ID_1,
34 STI_GDP_2 = STI_GDP | STI_ID_2,
35 STI_GDP_3 = STI_GDP | STI_ID_3,
36 STI_HQVDP_0 = STI_VDP | STI_ID_0,
37 STI_CURSOR = STI_CUR,
38 STI_BACK = STI_BCK
39};
40
41enum sti_plane_status {
42 STI_PLANE_READY,
43 STI_PLANE_UPDATED,
44 STI_PLANE_DISABLING,
45 STI_PLANE_FLUSHING,
46 STI_PLANE_DISABLED,
47};
48
49#define FPS_LENGTH 128
50struct sti_fps_info {
51 bool output;
52 unsigned int curr_frame_counter;
53 unsigned int last_frame_counter;
54 unsigned int curr_field_counter;
55 unsigned int last_field_counter;
56 ktime_t last_timestamp;
57 char fps_str[FPS_LENGTH];
58 char fips_str[FPS_LENGTH];
59};
60
61/**
62 * STI plane structure
63 *
64 * @plane: drm plane it is bound to (if any)
65 * @desc: plane type & id
66 * @status: to know the status of the plane
67 * @fps_info: frame per second info
68 */
69struct sti_plane {
70 struct drm_plane drm_plane;
71 enum sti_plane_desc desc;
72 enum sti_plane_status status;
73 struct sti_fps_info fps_info;
74};
75
76const char *sti_plane_to_str(struct sti_plane *plane);
77void sti_plane_update_fps(struct sti_plane *plane,
78 bool new_frame,
79 bool new_field);
80
81void sti_plane_init_property(struct sti_plane *plane,
82 enum drm_plane_type type);
83#endif
84

source code of linux/drivers/gpu/drm/sti/sti_plane.h