drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h

   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 */