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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2013 Red Hat
4 * Author: Rob Clark <robdclark@gmail.com>
5 */
6
7#ifndef __MDP_KMS_H__
8#define __MDP_KMS_H__
9
10#include <linux/clk.h>
11#include <linux/platform_device.h>
12#include <linux/regulator/consumer.h>
13
14#include "msm_drv.h"
15#include "msm_kms.h"
16#include "mdp_common.xml.h"
17
18struct mdp_kms;
19
20struct mdp_kms_funcs {
21 struct msm_kms_funcs base;
22 void (*set_irqmask)(struct mdp_kms *mdp_kms, uint32_t irqmask,
23 uint32_t old_irqmask);
24};
25
26struct mdp_kms {
27 struct msm_kms base;
28
29 const struct mdp_kms_funcs *funcs;
30
31 /* irq handling: */
32 bool in_irq;
33 struct list_head irq_list; /* list of mdp4_irq */
34 uint32_t vblank_mask; /* irq bits set for userspace vblank */
35 uint32_t cur_irq_mask; /* current irq mask */
36};
37#define to_mdp_kms(x) container_of(x, struct mdp_kms, base)
38
39static inline void mdp_kms_init(struct mdp_kms *mdp_kms,
40 const struct mdp_kms_funcs *funcs)
41{
42 mdp_kms->funcs = funcs;
43 INIT_LIST_HEAD(&mdp_kms->irq_list);
44 msm_kms_init(&mdp_kms->base, &funcs->base);
45}
46
47/*
48 * irq helpers:
49 */
50
51/* For transiently registering for different MDP irqs that various parts
52 * of the KMS code need during setup/configuration. These are not
53 * necessarily the same as what drm_vblank_get/put() are requesting, and
54 * the hysteresis in drm_vblank_put() is not necessarily desirable for
55 * internal housekeeping related irq usage.
56 */
57struct mdp_irq {
58 struct list_head node;
59 uint32_t irqmask;
60 bool registered;
61 void (*irq)(struct mdp_irq *irq, uint32_t irqstatus);
62};
63
64void mdp_dispatch_irqs(struct mdp_kms *mdp_kms, uint32_t status);
65void mdp_update_vblank_mask(struct mdp_kms *mdp_kms, uint32_t mask, bool enable);
66void mdp_irq_wait(struct mdp_kms *mdp_kms, uint32_t irqmask);
67void mdp_irq_register(struct mdp_kms *mdp_kms, struct mdp_irq *irq);
68void mdp_irq_unregister(struct mdp_kms *mdp_kms, struct mdp_irq *irq);
69void mdp_irq_update(struct mdp_kms *mdp_kms);
70
71/*
72 * pixel format helpers:
73 */
74
75struct mdp_format {
76 struct msm_format base;
77 enum mdp_bpc bpc_r, bpc_g, bpc_b;
78 enum mdp_bpc_alpha bpc_a;
79 uint8_t unpack[4];
80 bool alpha_enable, unpack_tight;
81 uint8_t cpp, unpack_count;
82 enum mdp_fetch_type fetch_type;
83 enum mdp_chroma_samp_type chroma_sample;
84 bool is_yuv;
85};
86#define to_mdp_format(x) container_of(x, struct mdp_format, base)
87#define MDP_FORMAT_IS_YUV(mdp_format) ((mdp_format)->is_yuv)
88
89uint32_t mdp_get_formats(uint32_t *formats, uint32_t max_formats, bool rgb_only);
90const struct msm_format *mdp_get_format(struct msm_kms *kms, uint32_t format, uint64_t modifier);
91
92/* MDP capabilities */
93#define MDP_CAP_SMP BIT(0) /* Shared Memory Pool */
94#define MDP_CAP_DSC BIT(1) /* VESA Display Stream Compression */
95#define MDP_CAP_CDM BIT(2) /* Chroma Down Module (HDMI 2.0 YUV) */
96#define MDP_CAP_SRC_SPLIT BIT(3) /* Source Split of SSPPs */
97
98/* MDP pipe capabilities */
99#define MDP_PIPE_CAP_HFLIP BIT(0)
100#define MDP_PIPE_CAP_VFLIP BIT(1)
101#define MDP_PIPE_CAP_SCALE BIT(2)
102#define MDP_PIPE_CAP_CSC BIT(3)
103#define MDP_PIPE_CAP_DECIMATION BIT(4)
104#define MDP_PIPE_CAP_SW_PIX_EXT BIT(5)
105#define MDP_PIPE_CAP_CURSOR BIT(6)
106
107/* MDP layer mixer caps */
108#define MDP_LM_CAP_DISPLAY BIT(0)
109#define MDP_LM_CAP_WB BIT(1)
110#define MDP_LM_CAP_PAIR BIT(2)
111
112static inline bool pipe_supports_yuv(uint32_t pipe_caps)
113{
114 return (pipe_caps & MDP_PIPE_CAP_SCALE) &&
115 (pipe_caps & MDP_PIPE_CAP_CSC);
116}
117
118enum csc_type {
119 CSC_RGB2RGB = 0,
120 CSC_YUV2RGB,
121 CSC_RGB2YUV,
122 CSC_YUV2YUV,
123 CSC_MAX
124};
125
126struct csc_cfg {
127 enum csc_type type;
128 uint32_t matrix[9];
129 uint32_t pre_bias[3];
130 uint32_t post_bias[3];
131 uint32_t pre_clamp[6];
132 uint32_t post_clamp[6];
133};
134
135struct csc_cfg *mdp_get_default_csc_cfg(enum csc_type);
136
137#endif /* __MDP_KMS_H__ */
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2013 Red Hat
4 * Author: Rob Clark <robdclark@gmail.com>
5 */
6
7#ifndef __MDP_KMS_H__
8#define __MDP_KMS_H__
9
10#include <linux/clk.h>
11#include <linux/platform_device.h>
12#include <linux/regulator/consumer.h>
13
14#include "mdp_format.h"
15#include "msm_drv.h"
16#include "msm_kms.h"
17#include "mdp_common.xml.h"
18
19struct mdp_kms;
20
21struct mdp_kms_funcs {
22 struct msm_kms_funcs base;
23 void (*set_irqmask)(struct mdp_kms *mdp_kms, uint32_t irqmask,
24 uint32_t old_irqmask);
25};
26
27struct mdp_kms {
28 struct msm_kms base;
29
30 const struct mdp_kms_funcs *funcs;
31
32 /* irq handling: */
33 bool in_irq;
34 struct list_head irq_list; /* list of mdp4_irq */
35 uint32_t vblank_mask; /* irq bits set for userspace vblank */
36 uint32_t cur_irq_mask; /* current irq mask */
37};
38#define to_mdp_kms(x) container_of(x, struct mdp_kms, base)
39
40static inline int mdp_kms_init(struct mdp_kms *mdp_kms,
41 const struct mdp_kms_funcs *funcs)
42{
43 mdp_kms->funcs = funcs;
44 INIT_LIST_HEAD(&mdp_kms->irq_list);
45 return msm_kms_init(&mdp_kms->base, &funcs->base);
46}
47
48static inline void mdp_kms_destroy(struct mdp_kms *mdp_kms)
49{
50 msm_kms_destroy(&mdp_kms->base);
51}
52
53/*
54 * irq helpers:
55 */
56
57/* For transiently registering for different MDP irqs that various parts
58 * of the KMS code need during setup/configuration. These are not
59 * necessarily the same as what drm_vblank_get/put() are requesting, and
60 * the hysteresis in drm_vblank_put() is not necessarily desirable for
61 * internal housekeeping related irq usage.
62 */
63struct mdp_irq {
64 struct list_head node;
65 uint32_t irqmask;
66 bool registered;
67 void (*irq)(struct mdp_irq *irq, uint32_t irqstatus);
68};
69
70void mdp_dispatch_irqs(struct mdp_kms *mdp_kms, uint32_t status);
71void mdp_update_vblank_mask(struct mdp_kms *mdp_kms, uint32_t mask, bool enable);
72void mdp_irq_wait(struct mdp_kms *mdp_kms, uint32_t irqmask);
73void mdp_irq_register(struct mdp_kms *mdp_kms, struct mdp_irq *irq);
74void mdp_irq_unregister(struct mdp_kms *mdp_kms, struct mdp_irq *irq);
75void mdp_irq_update(struct mdp_kms *mdp_kms);
76
77/*
78 * pixel format helpers:
79 */
80
81/* MDP capabilities */
82#define MDP_CAP_SMP BIT(0) /* Shared Memory Pool */
83#define MDP_CAP_DSC BIT(1) /* VESA Display Stream Compression */
84#define MDP_CAP_CDM BIT(2) /* Chroma Down Module (HDMI 2.0 YUV) */
85#define MDP_CAP_SRC_SPLIT BIT(3) /* Source Split of SSPPs */
86
87/* MDP pipe capabilities */
88#define MDP_PIPE_CAP_HFLIP BIT(0)
89#define MDP_PIPE_CAP_VFLIP BIT(1)
90#define MDP_PIPE_CAP_SCALE BIT(2)
91#define MDP_PIPE_CAP_CSC BIT(3)
92#define MDP_PIPE_CAP_DECIMATION BIT(4)
93#define MDP_PIPE_CAP_SW_PIX_EXT BIT(5)
94#define MDP_PIPE_CAP_CURSOR BIT(6)
95
96/* MDP layer mixer caps */
97#define MDP_LM_CAP_DISPLAY BIT(0)
98#define MDP_LM_CAP_WB BIT(1)
99#define MDP_LM_CAP_PAIR BIT(2)
100
101static inline bool pipe_supports_yuv(uint32_t pipe_caps)
102{
103 return (pipe_caps & MDP_PIPE_CAP_SCALE) &&
104 (pipe_caps & MDP_PIPE_CAP_CSC);
105}
106
107enum csc_type {
108 CSC_RGB2RGB = 0,
109 CSC_YUV2RGB,
110 CSC_RGB2YUV,
111 CSC_YUV2YUV,
112 CSC_MAX
113};
114
115struct csc_cfg {
116 enum csc_type type;
117 uint32_t matrix[9];
118 uint32_t pre_bias[3];
119 uint32_t post_bias[3];
120 uint32_t pre_clamp[6];
121 uint32_t post_clamp[6];
122};
123
124struct csc_cfg *mdp_get_default_csc_cfg(enum csc_type);
125
126#endif /* __MDP_KMS_H__ */