1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (c) 2015 MediaTek Inc.
4  */
5 
6 #ifndef MTK_DRM_DDP_COMP_H
7 #define MTK_DRM_DDP_COMP_H
8 
9 #include <linux/io.h>
10 
11 struct device;
12 struct device_node;
13 struct drm_crtc;
14 struct drm_device;
15 struct mtk_plane_state;
16 struct drm_crtc_state;
17 
18 enum mtk_ddp_comp_type {
19 	MTK_DISP_OVL,
20 	MTK_DISP_RDMA,
21 	MTK_DISP_WDMA,
22 	MTK_DISP_COLOR,
23 	MTK_DISP_AAL,
24 	MTK_DISP_GAMMA,
25 	MTK_DISP_UFOE,
26 	MTK_DSI,
27 	MTK_DPI,
28 	MTK_DISP_PWM,
29 	MTK_DISP_MUTEX,
30 	MTK_DISP_OD,
31 	MTK_DISP_BLS,
32 	MTK_DDP_COMP_TYPE_MAX,
33 };
34 
35 enum mtk_ddp_comp_id {
36 	DDP_COMPONENT_AAL0,
37 	DDP_COMPONENT_AAL1,
38 	DDP_COMPONENT_BLS,
39 	DDP_COMPONENT_COLOR0,
40 	DDP_COMPONENT_COLOR1,
41 	DDP_COMPONENT_DPI0,
42 	DDP_COMPONENT_DPI1,
43 	DDP_COMPONENT_DSI0,
44 	DDP_COMPONENT_DSI1,
45 	DDP_COMPONENT_DSI2,
46 	DDP_COMPONENT_DSI3,
47 	DDP_COMPONENT_GAMMA,
48 	DDP_COMPONENT_OD0,
49 	DDP_COMPONENT_OD1,
50 	DDP_COMPONENT_OVL0,
51 	DDP_COMPONENT_OVL1,
52 	DDP_COMPONENT_PWM0,
53 	DDP_COMPONENT_PWM1,
54 	DDP_COMPONENT_PWM2,
55 	DDP_COMPONENT_RDMA0,
56 	DDP_COMPONENT_RDMA1,
57 	DDP_COMPONENT_RDMA2,
58 	DDP_COMPONENT_UFOE,
59 	DDP_COMPONENT_WDMA0,
60 	DDP_COMPONENT_WDMA1,
61 	DDP_COMPONENT_ID_MAX,
62 };
63 
64 struct mtk_ddp_comp;
65 
66 struct mtk_ddp_comp_funcs {
67 	void (*config)(struct mtk_ddp_comp *comp, unsigned int w,
68 		       unsigned int h, unsigned int vrefresh, unsigned int bpc);
69 	void (*start)(struct mtk_ddp_comp *comp);
70 	void (*stop)(struct mtk_ddp_comp *comp);
71 	void (*enable_vblank)(struct mtk_ddp_comp *comp, struct drm_crtc *crtc);
72 	void (*disable_vblank)(struct mtk_ddp_comp *comp);
73 	unsigned int (*layer_nr)(struct mtk_ddp_comp *comp);
74 	void (*layer_on)(struct mtk_ddp_comp *comp, unsigned int idx);
75 	void (*layer_off)(struct mtk_ddp_comp *comp, unsigned int idx);
76 	void (*layer_config)(struct mtk_ddp_comp *comp, unsigned int idx,
77 			     struct mtk_plane_state *state);
78 	void (*gamma_set)(struct mtk_ddp_comp *comp,
79 			  struct drm_crtc_state *state);
80 };
81 
82 struct mtk_ddp_comp {
83 	struct clk *clk;
84 	void __iomem *regs;
85 	int irq;
86 	struct device *larb_dev;
87 	enum mtk_ddp_comp_id id;
88 	const struct mtk_ddp_comp_funcs *funcs;
89 };
90 
91 static inline void mtk_ddp_comp_config(struct mtk_ddp_comp *comp,
92 				       unsigned int w, unsigned int h,
93 				       unsigned int vrefresh, unsigned int bpc)
94 {
95 	if (comp->funcs && comp->funcs->config)
96 		comp->funcs->config(comp, w, h, vrefresh, bpc);
97 }
98 
99 static inline void mtk_ddp_comp_start(struct mtk_ddp_comp *comp)
100 {
101 	if (comp->funcs && comp->funcs->start)
102 		comp->funcs->start(comp);
103 }
104 
105 static inline void mtk_ddp_comp_stop(struct mtk_ddp_comp *comp)
106 {
107 	if (comp->funcs && comp->funcs->stop)
108 		comp->funcs->stop(comp);
109 }
110 
111 static inline void mtk_ddp_comp_enable_vblank(struct mtk_ddp_comp *comp,
112 					      struct drm_crtc *crtc)
113 {
114 	if (comp->funcs && comp->funcs->enable_vblank)
115 		comp->funcs->enable_vblank(comp, crtc);
116 }
117 
118 static inline void mtk_ddp_comp_disable_vblank(struct mtk_ddp_comp *comp)
119 {
120 	if (comp->funcs && comp->funcs->disable_vblank)
121 		comp->funcs->disable_vblank(comp);
122 }
123 
124 static inline unsigned int mtk_ddp_comp_layer_nr(struct mtk_ddp_comp *comp)
125 {
126 	if (comp->funcs && comp->funcs->layer_nr)
127 		return comp->funcs->layer_nr(comp);
128 
129 	return 0;
130 }
131 
132 static inline void mtk_ddp_comp_layer_on(struct mtk_ddp_comp *comp,
133 					 unsigned int idx)
134 {
135 	if (comp->funcs && comp->funcs->layer_on)
136 		comp->funcs->layer_on(comp, idx);
137 }
138 
139 static inline void mtk_ddp_comp_layer_off(struct mtk_ddp_comp *comp,
140 					  unsigned int idx)
141 {
142 	if (comp->funcs && comp->funcs->layer_off)
143 		comp->funcs->layer_off(comp, idx);
144 }
145 
146 static inline void mtk_ddp_comp_layer_config(struct mtk_ddp_comp *comp,
147 					     unsigned int idx,
148 					     struct mtk_plane_state *state)
149 {
150 	if (comp->funcs && comp->funcs->layer_config)
151 		comp->funcs->layer_config(comp, idx, state);
152 }
153 
154 static inline void mtk_ddp_gamma_set(struct mtk_ddp_comp *comp,
155 				     struct drm_crtc_state *state)
156 {
157 	if (comp->funcs && comp->funcs->gamma_set)
158 		comp->funcs->gamma_set(comp, state);
159 }
160 
161 int mtk_ddp_comp_get_id(struct device_node *node,
162 			enum mtk_ddp_comp_type comp_type);
163 int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_node,
164 		      struct mtk_ddp_comp *comp, enum mtk_ddp_comp_id comp_id,
165 		      const struct mtk_ddp_comp_funcs *funcs);
166 int mtk_ddp_comp_register(struct drm_device *drm, struct mtk_ddp_comp *comp);
167 void mtk_ddp_comp_unregister(struct drm_device *drm, struct mtk_ddp_comp *comp);
168 void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc,
169 		    unsigned int CFG);
170 
171 #endif /* MTK_DRM_DDP_COMP_H */
172