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[linux.git] / drivers / gpu / drm / mediatek / mtk_drm_ddp_comp.h
1 /*
2  * Copyright (c) 2015 MediaTek Inc.
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License version 2 as
6  * published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11  * GNU General Public License for more details.
12  */
13
14 #ifndef MTK_DRM_DDP_COMP_H
15 #define MTK_DRM_DDP_COMP_H
16
17 #include <linux/io.h>
18
19 struct device;
20 struct device_node;
21 struct drm_crtc;
22 struct drm_device;
23 struct mtk_plane_state;
24 struct drm_crtc_state;
25
26 enum mtk_ddp_comp_type {
27         MTK_DISP_OVL,
28         MTK_DISP_RDMA,
29         MTK_DISP_WDMA,
30         MTK_DISP_COLOR,
31         MTK_DISP_AAL,
32         MTK_DISP_GAMMA,
33         MTK_DISP_UFOE,
34         MTK_DSI,
35         MTK_DPI,
36         MTK_DISP_PWM,
37         MTK_DISP_MUTEX,
38         MTK_DISP_OD,
39         MTK_DISP_BLS,
40         MTK_DDP_COMP_TYPE_MAX,
41 };
42
43 enum mtk_ddp_comp_id {
44         DDP_COMPONENT_AAL0,
45         DDP_COMPONENT_AAL1,
46         DDP_COMPONENT_BLS,
47         DDP_COMPONENT_COLOR0,
48         DDP_COMPONENT_COLOR1,
49         DDP_COMPONENT_DPI0,
50         DDP_COMPONENT_DPI1,
51         DDP_COMPONENT_DSI0,
52         DDP_COMPONENT_DSI1,
53         DDP_COMPONENT_DSI2,
54         DDP_COMPONENT_DSI3,
55         DDP_COMPONENT_GAMMA,
56         DDP_COMPONENT_OD0,
57         DDP_COMPONENT_OD1,
58         DDP_COMPONENT_OVL0,
59         DDP_COMPONENT_OVL1,
60         DDP_COMPONENT_PWM0,
61         DDP_COMPONENT_PWM1,
62         DDP_COMPONENT_PWM2,
63         DDP_COMPONENT_RDMA0,
64         DDP_COMPONENT_RDMA1,
65         DDP_COMPONENT_RDMA2,
66         DDP_COMPONENT_UFOE,
67         DDP_COMPONENT_WDMA0,
68         DDP_COMPONENT_WDMA1,
69         DDP_COMPONENT_ID_MAX,
70 };
71
72 struct mtk_ddp_comp;
73
74 struct mtk_ddp_comp_funcs {
75         void (*config)(struct mtk_ddp_comp *comp, unsigned int w,
76                        unsigned int h, unsigned int vrefresh, unsigned int bpc);
77         void (*start)(struct mtk_ddp_comp *comp);
78         void (*stop)(struct mtk_ddp_comp *comp);
79         void (*enable_vblank)(struct mtk_ddp_comp *comp, struct drm_crtc *crtc);
80         void (*disable_vblank)(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 };
88
89 struct mtk_ddp_comp {
90         struct clk *clk;
91         void __iomem *regs;
92         int irq;
93         struct device *larb_dev;
94         enum mtk_ddp_comp_id id;
95         const struct mtk_ddp_comp_funcs *funcs;
96 };
97
98 static inline void mtk_ddp_comp_config(struct mtk_ddp_comp *comp,
99                                        unsigned int w, unsigned int h,
100                                        unsigned int vrefresh, unsigned int bpc)
101 {
102         if (comp->funcs && comp->funcs->config)
103                 comp->funcs->config(comp, w, h, vrefresh, bpc);
104 }
105
106 static inline void mtk_ddp_comp_start(struct mtk_ddp_comp *comp)
107 {
108         if (comp->funcs && comp->funcs->start)
109                 comp->funcs->start(comp);
110 }
111
112 static inline void mtk_ddp_comp_stop(struct mtk_ddp_comp *comp)
113 {
114         if (comp->funcs && comp->funcs->stop)
115                 comp->funcs->stop(comp);
116 }
117
118 static inline void mtk_ddp_comp_enable_vblank(struct mtk_ddp_comp *comp,
119                                               struct drm_crtc *crtc)
120 {
121         if (comp->funcs && comp->funcs->enable_vblank)
122                 comp->funcs->enable_vblank(comp, crtc);
123 }
124
125 static inline void mtk_ddp_comp_disable_vblank(struct mtk_ddp_comp *comp)
126 {
127         if (comp->funcs && comp->funcs->disable_vblank)
128                 comp->funcs->disable_vblank(comp);
129 }
130
131 static inline void mtk_ddp_comp_layer_on(struct mtk_ddp_comp *comp,
132                                          unsigned int idx)
133 {
134         if (comp->funcs && comp->funcs->layer_on)
135                 comp->funcs->layer_on(comp, idx);
136 }
137
138 static inline void mtk_ddp_comp_layer_off(struct mtk_ddp_comp *comp,
139                                           unsigned int idx)
140 {
141         if (comp->funcs && comp->funcs->layer_off)
142                 comp->funcs->layer_off(comp, idx);
143 }
144
145 static inline void mtk_ddp_comp_layer_config(struct mtk_ddp_comp *comp,
146                                              unsigned int idx,
147                                              struct mtk_plane_state *state)
148 {
149         if (comp->funcs && comp->funcs->layer_config)
150                 comp->funcs->layer_config(comp, idx, state);
151 }
152
153 static inline void mtk_ddp_gamma_set(struct mtk_ddp_comp *comp,
154                                      struct drm_crtc_state *state)
155 {
156         if (comp->funcs && comp->funcs->gamma_set)
157                 comp->funcs->gamma_set(comp, state);
158 }
159
160 int mtk_ddp_comp_get_id(struct device_node *node,
161                         enum mtk_ddp_comp_type comp_type);
162 int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_node,
163                       struct mtk_ddp_comp *comp, enum mtk_ddp_comp_id comp_id,
164                       const struct mtk_ddp_comp_funcs *funcs);
165 int mtk_ddp_comp_register(struct drm_device *drm, struct mtk_ddp_comp *comp);
166 void mtk_ddp_comp_unregister(struct drm_device *drm, struct mtk_ddp_comp *comp);
167 void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc,
168                     unsigned int CFG);
169
170 #endif /* MTK_DRM_DDP_COMP_H */
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