tjh.dev
Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * Copyright 2024 NXP
4 */
5
6#ifndef __DC_PIXEL_ENGINE_H__
7#define __DC_PIXEL_ENGINE_H__
8
9#include <linux/clk.h>
10#include <linux/device.h>
11#include <linux/regmap.h>
12
13#include "dc-de.h"
14
15#define SHDEN BIT(0)
16
17#define CLKEN_MASK_SHIFT 24
18#define CLKEN_MASK (0x3 << CLKEN_MASK_SHIFT)
19#define CLKEN(n) ((n) << CLKEN_MASK_SHIFT)
20
21#define DC_DISP_FU_CNT 2
22#define DC_LB_CNT 4
23
24enum dc_link_id {
25 LINK_ID_NONE = 0x00,
26 LINK_ID_CONSTFRAME0 = 0x0c,
27 LINK_ID_CONSTFRAME4 = 0x0e,
28 LINK_ID_CONSTFRAME1 = 0x10,
29 LINK_ID_CONSTFRAME5 = 0x12,
30 LINK_ID_FETCHWARP2 = 0x14,
31 LINK_ID_FETCHLAYER0 = 0x1a,
32 LINK_ID_LAYERBLEND0 = 0x21,
33 LINK_ID_LAYERBLEND1 = 0x22,
34 LINK_ID_LAYERBLEND2 = 0x23,
35 LINK_ID_LAYERBLEND3 = 0x24,
36};
37
38enum dc_lb_mode {
39 LB_NEUTRAL, /* Output is same as primary input. */
40 LB_BLEND,
41};
42
43enum dc_pec_clken {
44 CLKEN_DISABLE,
45 CLKEN_AUTOMATIC,
46};
47
48struct dc_cf {
49 struct regmap *reg_cfg;
50 enum dc_link_id link;
51};
52
53struct dc_ed {
54 struct device *dev;
55 struct regmap *reg_pec;
56 struct regmap *reg_cfg;
57 int irq_shdload;
58};
59
60struct dc_lb {
61 struct device *dev;
62 struct regmap *reg_pec;
63 struct regmap *reg_cfg;
64 int id;
65 enum dc_link_id link;
66};
67
68struct dc_pe {
69 struct device *dev;
70 struct clk *clk_axi;
71 struct dc_cf *cf_safe[DC_DISPLAYS];
72 struct dc_cf *cf_cont[DC_DISPLAYS];
73 struct dc_ed *ed_safe[DC_DISPLAYS];
74 struct dc_ed *ed_cont[DC_DISPLAYS];
75 struct dc_fu *fu_disp[DC_DISP_FU_CNT];
76 struct dc_lb *lb[DC_LB_CNT];
77};
78
79/* Constant Frame Unit */
80enum dc_link_id dc_cf_get_link_id(struct dc_cf *cf);
81void dc_cf_framedimensions(struct dc_cf *cf, unsigned int w, unsigned int h);
82void dc_cf_constantcolor_black(struct dc_cf *cf);
83void dc_cf_constantcolor_blue(struct dc_cf *cf);
84void dc_cf_init(struct dc_cf *cf);
85
86/* External Destination Unit */
87void dc_ed_pec_src_sel(struct dc_ed *ed, enum dc_link_id src);
88void dc_ed_pec_sync_trigger(struct dc_ed *ed);
89void dc_ed_init(struct dc_ed *ed);
90
91/* Layer Blend Unit */
92enum dc_link_id dc_lb_get_link_id(struct dc_lb *lb);
93void dc_lb_pec_dynamic_prim_sel(struct dc_lb *lb, enum dc_link_id prim);
94void dc_lb_pec_dynamic_sec_sel(struct dc_lb *lb, enum dc_link_id sec);
95void dc_lb_pec_clken(struct dc_lb *lb, enum dc_pec_clken clken);
96void dc_lb_mode(struct dc_lb *lb, enum dc_lb_mode mode);
97void dc_lb_position(struct dc_lb *lb, int x, int y);
98int dc_lb_get_id(struct dc_lb *lb);
99void dc_lb_init(struct dc_lb *lb);
100
101#endif /* __DC_PIXEL_ENGINE_H__ */