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_OVL_2L,
21 	MTK_DISP_RDMA,
22 	MTK_DISP_WDMA,
23 	MTK_DISP_COLOR,
24 	MTK_DISP_CCORR,
25 	MTK_DISP_DITHER,
26 	MTK_DISP_AAL,
27 	MTK_DISP_GAMMA,
28 	MTK_DISP_UFOE,
29 	MTK_DSI,
30 	MTK_DPI,
31 	MTK_DISP_PWM,
32 	MTK_DISP_MUTEX,
33 	MTK_DISP_OD,
34 	MTK_DISP_BLS,
35 	MTK_DDP_COMP_TYPE_MAX,
36 };
37 
38 enum mtk_ddp_comp_id {
39 	DDP_COMPONENT_AAL0,
40 	DDP_COMPONENT_AAL1,
41 	DDP_COMPONENT_BLS,
42 	DDP_COMPONENT_CCORR,
43 	DDP_COMPONENT_COLOR0,
44 	DDP_COMPONENT_COLOR1,
45 	DDP_COMPONENT_DITHER,
46 	DDP_COMPONENT_DPI0,
47 	DDP_COMPONENT_DPI1,
48 	DDP_COMPONENT_DSI0,
49 	DDP_COMPONENT_DSI1,
50 	DDP_COMPONENT_DSI2,
51 	DDP_COMPONENT_DSI3,
52 	DDP_COMPONENT_GAMMA,
53 	DDP_COMPONENT_OD0,
54 	DDP_COMPONENT_OD1,
55 	DDP_COMPONENT_OVL0,
56 	DDP_COMPONENT_OVL_2L0,
57 	DDP_COMPONENT_OVL_2L1,
58 	DDP_COMPONENT_OVL1,
59 	DDP_COMPONENT_PWM0,
60 	DDP_COMPONENT_PWM1,
61 	DDP_COMPONENT_PWM2,
62 	DDP_COMPONENT_RDMA0,
63 	DDP_COMPONENT_RDMA1,
64 	DDP_COMPONENT_RDMA2,
65 	DDP_COMPONENT_UFOE,
66 	DDP_COMPONENT_WDMA0,
67 	DDP_COMPONENT_WDMA1,
68 	DDP_COMPONENT_ID_MAX,
69 };
70 
71 struct mtk_ddp_comp;
72 
73 struct mtk_ddp_comp_funcs {
74 	void (*config)(struct mtk_ddp_comp *comp, unsigned int w,
75 		       unsigned int h, unsigned int vrefresh, unsigned int bpc);
76 	void (*start)(struct mtk_ddp_comp *comp);
77 	void (*stop)(struct mtk_ddp_comp *comp);
78 	void (*enable_vblank)(struct mtk_ddp_comp *comp, struct drm_crtc *crtc);
79 	void (*disable_vblank)(struct mtk_ddp_comp *comp);
80 	unsigned int (*layer_nr)(struct mtk_ddp_comp *comp);
81 	void (*layer_on)(struct mtk_ddp_comp *comp, unsigned int idx);
82 	void (*layer_off)(struct mtk_ddp_comp *comp, unsigned int idx);
83 	void (*layer_config)(struct mtk_ddp_comp *comp, unsigned int idx,
84 			     struct mtk_plane_state *state);
85 	void (*gamma_set)(struct mtk_ddp_comp *comp,
86 			  struct drm_crtc_state *state);
87 	void (*bgclr_in_on)(struct mtk_ddp_comp *comp);
88 	void (*bgclr_in_off)(struct mtk_ddp_comp *comp);
89 };
90 
91 struct mtk_ddp_comp {
92 	struct clk *clk;
93 	void __iomem *regs;
94 	int irq;
95 	struct device *larb_dev;
96 	enum mtk_ddp_comp_id id;
97 	const struct mtk_ddp_comp_funcs *funcs;
98 };
99 
100 static inline void mtk_ddp_comp_config(struct mtk_ddp_comp *comp,
101 				       unsigned int w, unsigned int h,
102 				       unsigned int vrefresh, unsigned int bpc)
103 {
104 	if (comp->funcs && comp->funcs->config)
105 		comp->funcs->config(comp, w, h, vrefresh, bpc);
106 }
107 
108 static inline void mtk_ddp_comp_start(struct mtk_ddp_comp *comp)
109 {
110 	if (comp->funcs && comp->funcs->start)
111 		comp->funcs->start(comp);
112 }
113 
114 static inline void mtk_ddp_comp_stop(struct mtk_ddp_comp *comp)
115 {
116 	if (comp->funcs && comp->funcs->stop)
117 		comp->funcs->stop(comp);
118 }
119 
120 static inline void mtk_ddp_comp_enable_vblank(struct mtk_ddp_comp *comp,
121 					      struct drm_crtc *crtc)
122 {
123 	if (comp->funcs && comp->funcs->enable_vblank)
124 		comp->funcs->enable_vblank(comp, crtc);
125 }
126 
127 static inline void mtk_ddp_comp_disable_vblank(struct mtk_ddp_comp *comp)
128 {
129 	if (comp->funcs && comp->funcs->disable_vblank)
130 		comp->funcs->disable_vblank(comp);
131 }
132 
133 static inline unsigned int mtk_ddp_comp_layer_nr(struct mtk_ddp_comp *comp)
134 {
135 	if (comp->funcs && comp->funcs->layer_nr)
136 		return comp->funcs->layer_nr(comp);
137 
138 	return 0;
139 }
140 
141 static inline void mtk_ddp_comp_layer_on(struct mtk_ddp_comp *comp,
142 					 unsigned int idx)
143 {
144 	if (comp->funcs && comp->funcs->layer_on)
145 		comp->funcs->layer_on(comp, idx);
146 }
147 
148 static inline void mtk_ddp_comp_layer_off(struct mtk_ddp_comp *comp,
149 					  unsigned int idx)
150 {
151 	if (comp->funcs && comp->funcs->layer_off)
152 		comp->funcs->layer_off(comp, idx);
153 }
154 
155 static inline void mtk_ddp_comp_layer_config(struct mtk_ddp_comp *comp,
156 					     unsigned int idx,
157 					     struct mtk_plane_state *state)
158 {
159 	if (comp->funcs && comp->funcs->layer_config)
160 		comp->funcs->layer_config(comp, idx, state);
161 }
162 
163 static inline void mtk_ddp_gamma_set(struct mtk_ddp_comp *comp,
164 				     struct drm_crtc_state *state)
165 {
166 	if (comp->funcs && comp->funcs->gamma_set)
167 		comp->funcs->gamma_set(comp, state);
168 }
169 
170 static inline void mtk_ddp_comp_bgclr_in_on(struct mtk_ddp_comp *comp)
171 {
172 	if (comp->funcs && comp->funcs->bgclr_in_on)
173 		comp->funcs->bgclr_in_on(comp);
174 }
175 
176 static inline void mtk_ddp_comp_bgclr_in_off(struct mtk_ddp_comp *comp)
177 {
178 	if (comp->funcs && comp->funcs->bgclr_in_off)
179 		comp->funcs->bgclr_in_off(comp);
180 }
181 
182 int mtk_ddp_comp_get_id(struct device_node *node,
183 			enum mtk_ddp_comp_type comp_type);
184 int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_node,
185 		      struct mtk_ddp_comp *comp, enum mtk_ddp_comp_id comp_id,
186 		      const struct mtk_ddp_comp_funcs *funcs);
187 int mtk_ddp_comp_register(struct drm_device *drm, struct mtk_ddp_comp *comp);
188 void mtk_ddp_comp_unregister(struct drm_device *drm, struct mtk_ddp_comp *comp);
189 void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc,
190 		    unsigned int CFG);
191 
192 #endif /* MTK_DRM_DDP_COMP_H */
193