tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * Copyright 2024 NXP
4 */
5
6#ifndef __DC_FETCHUNIT_H__
7#define __DC_FETCHUNIT_H__
8
9#include <linux/bitfield.h>
10#include <linux/bits.h>
11#include <linux/regmap.h>
12#include <linux/types.h>
13
14#include <drm/drm_fourcc.h>
15
16#include "dc-pe.h"
17
18#define FRAC_OFFSET 0x28
19
20#define STATICCONTROL 0x8
21#define BURSTBUFFERMANAGEMENT 0xc
22
23/* COLORCOMPONENTBITS */
24#define R_BITS(x) FIELD_PREP_CONST(GENMASK(27, 24), (x))
25#define G_BITS(x) FIELD_PREP_CONST(GENMASK(19, 16), (x))
26#define B_BITS(x) FIELD_PREP_CONST(GENMASK(11, 8), (x))
27#define A_BITS(x) FIELD_PREP_CONST(GENMASK(3, 0), (x))
28
29/* COLORCOMPONENTSHIFT */
30#define R_SHIFT(x) FIELD_PREP_CONST(GENMASK(28, 24), (x))
31#define G_SHIFT(x) FIELD_PREP_CONST(GENMASK(20, 16), (x))
32#define B_SHIFT(x) FIELD_PREP_CONST(GENMASK(12, 8), (x))
33#define A_SHIFT(x) FIELD_PREP_CONST(GENMASK(4, 0), (x))
34
35/* LAYERPROPERTY */
36#define YUVCONVERSIONMODE_MASK GENMASK(18, 17)
37#define YUVCONVERSIONMODE(x) FIELD_PREP(YUVCONVERSIONMODE_MASK, (x))
38#define SOURCEBUFFERENABLE BIT(31)
39
40/* FRAMEDIMENSIONS */
41#define FRAMEWIDTH(x) FIELD_PREP(GENMASK(13, 0), (x))
42#define FRAMEHEIGHT(x) FIELD_PREP(GENMASK(29, 16), (x))
43
44/* CONTROL */
45#define INPUTSELECT_MASK GENMASK(4, 3)
46#define INPUTSELECT(x) FIELD_PREP(INPUTSELECT_MASK, (x))
47#define RASTERMODE_MASK GENMASK(2, 0)
48#define RASTERMODE(x) FIELD_PREP(RASTERMODE_MASK, (x))
49
50enum dc_yuvconversionmode {
51 YUVCONVERSIONMODE_OFF,
52};
53
54enum dc_inputselect {
55 INPUTSELECT_INACTIVE,
56};
57
58enum dc_rastermode {
59 RASTERMODE_NORMAL,
60};
61
62enum {
63 DC_FETCHUNIT_FL0,
64 DC_FETCHUNIT_FW2,
65};
66
67enum dc_fu_frac {
68 DC_FETCHUNIT_FRAC0,
69 DC_FETCHUNIT_FRAC1,
70 DC_FETCHUNIT_FRAC2,
71 DC_FETCHUNIT_FRAC3,
72 DC_FETCHUNIT_FRAC4,
73 DC_FETCHUNIT_FRAC5,
74 DC_FETCHUNIT_FRAC6,
75 DC_FETCHUNIT_FRAC7,
76 DC_FETCHUNIT_FRAC_NUM
77};
78
79struct dc_fu;
80struct dc_lb;
81
82struct dc_fu_ops {
83 void (*init)(struct dc_fu *fu);
84 void (*set_burstlength)(struct dc_fu *fu, dma_addr_t baddr);
85 void (*set_baseaddress)(struct dc_fu *fu, enum dc_fu_frac frac,
86 dma_addr_t baddr);
87 void (*set_src_stride)(struct dc_fu *fu, enum dc_fu_frac frac,
88 unsigned int stride);
89 void (*set_src_buf_dimensions)(struct dc_fu *fu, enum dc_fu_frac frac,
90 int w, int h);
91 void (*set_fmt)(struct dc_fu *fu, enum dc_fu_frac frac,
92 const struct drm_format_info *format);
93 void (*enable_src_buf)(struct dc_fu *fu, enum dc_fu_frac frac);
94 void (*disable_src_buf)(struct dc_fu *fu, enum dc_fu_frac frac);
95 void (*set_framedimensions)(struct dc_fu *fu, int w, int h);
96 void (*set_layerblend)(struct dc_fu *fu, struct dc_lb *lb);
97 enum dc_link_id (*get_link_id)(struct dc_fu *fu);
98 const char *(*get_name)(struct dc_fu *fu);
99};
100
101struct dc_fu {
102 struct regmap *reg_pec;
103 struct regmap *reg_cfg;
104 char name[21];
105 u32 reg_baseaddr[DC_FETCHUNIT_FRAC_NUM];
106 u32 reg_sourcebufferattributes[DC_FETCHUNIT_FRAC_NUM];
107 u32 reg_sourcebufferdimension[DC_FETCHUNIT_FRAC_NUM];
108 u32 reg_layeroffset[DC_FETCHUNIT_FRAC_NUM];
109 u32 reg_clipwindowoffset[DC_FETCHUNIT_FRAC_NUM];
110 u32 reg_clipwindowdimensions[DC_FETCHUNIT_FRAC_NUM];
111 u32 reg_constantcolor[DC_FETCHUNIT_FRAC_NUM];
112 u32 reg_layerproperty[DC_FETCHUNIT_FRAC_NUM];
113 unsigned int id;
114 enum dc_link_id link_id;
115 struct dc_fu_ops ops;
116 struct dc_lb *lb;
117};
118
119extern const struct dc_fu_ops dc_fu_common_ops;
120
121void dc_fu_get_pixel_format_bits(struct dc_fu *fu, u32 format, u32 *bits);
122void dc_fu_get_pixel_format_shifts(struct dc_fu *fu, u32 format, u32 *shifts);
123void dc_fu_shdldreq_sticky(struct dc_fu *fu, u8 layer_mask);
124void dc_fu_set_src_bpp(struct dc_fu *fu, enum dc_fu_frac frac, unsigned int bpp);
125void dc_fu_common_hw_init(struct dc_fu *fu);
126
127const struct dc_fu_ops *dc_fu_get_ops(struct dc_fu *fu);
128
129#endif /* __DC_FETCHUNIT_H__ */