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 #include <linux/soc/mediatek/mtk-mmsys.h>
  11
  12 struct device;
  13 struct device_node;
  14 struct drm_crtc;
  15 struct drm_device;
  16 struct mtk_plane_state;
  17 struct drm_crtc_state;
  18
  19 enum mtk_ddp_comp_type {
  20         MTK_DISP_OVL,
  21         MTK_DISP_OVL_2L,
  22         MTK_DISP_RDMA,
  23         MTK_DISP_WDMA,
  24         MTK_DISP_COLOR,
  25         MTK_DISP_CCORR,
  26         MTK_DISP_DITHER,
  27         MTK_DISP_AAL,
  28         MTK_DISP_GAMMA,
  29         MTK_DISP_UFOE,
  30         MTK_DSI,
  31         MTK_DPI,
  32         MTK_DISP_PWM,
  33         MTK_DISP_MUTEX,
  34         MTK_DISP_OD,
  35         MTK_DISP_BLS,
  36         MTK_DDP_COMP_TYPE_MAX,
  37 };
  38
  39 struct mtk_ddp_comp;
  40 struct cmdq_pkt;
  41 struct mtk_ddp_comp_funcs {
  42         void (*config)(struct mtk_ddp_comp *comp, unsigned int w,
  43                        unsigned int h, unsigned int vrefresh,
  44                        unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
  45         void (*start)(struct mtk_ddp_comp *comp);
  46         void (*stop)(struct mtk_ddp_comp *comp);
  47         void (*enable_vblank)(struct mtk_ddp_comp *comp, struct drm_crtc *crtc);
  48         void (*disable_vblank)(struct mtk_ddp_comp *comp);
  49         unsigned int (*supported_rotations)(struct mtk_ddp_comp *comp);
  50         unsigned int (*layer_nr)(struct mtk_ddp_comp *comp);
  51         int (*layer_check)(struct mtk_ddp_comp *comp,
  52                            unsigned int idx,
  53                            struct mtk_plane_state *state);
  54         void (*layer_config)(struct mtk_ddp_comp *comp, unsigned int idx,
  55                              struct mtk_plane_state *state,
  56                              struct cmdq_pkt *cmdq_pkt);
  57         void (*gamma_set)(struct mtk_ddp_comp *comp,
  58                           struct drm_crtc_state *state);
  59         void (*bgclr_in_on)(struct mtk_ddp_comp *comp);
  60         void (*bgclr_in_off)(struct mtk_ddp_comp *comp);
  61         void (*ctm_set)(struct mtk_ddp_comp *comp,
  62                         struct drm_crtc_state *state);
  63 };
  64
  65 struct mtk_ddp_comp {
  66         struct clk *clk;
  67         void __iomem *regs;
  68         int irq;
  69         struct device *larb_dev;
  70         enum mtk_ddp_comp_id id;
  71         const struct mtk_ddp_comp_funcs *funcs;
  72         resource_size_t regs_pa;
  73         u8 subsys;
  74 };
  75
  76 static inline void mtk_ddp_comp_config(struct mtk_ddp_comp *comp,
  77                                        unsigned int w, unsigned int h,
  78                                        unsigned int vrefresh, unsigned int bpc,
  79                                        struct cmdq_pkt *cmdq_pkt)
  80 {
  81         if (comp->funcs && comp->funcs->config)
  82                 comp->funcs->config(comp, w, h, vrefresh, bpc, cmdq_pkt);
  83 }
  84
  85 static inline void mtk_ddp_comp_start(struct mtk_ddp_comp *comp)
  86 {
  87         if (comp->funcs && comp->funcs->start)
  88                 comp->funcs->start(comp);
  89 }
  90
  91 static inline void mtk_ddp_comp_stop(struct mtk_ddp_comp *comp)
  92 {
  93         if (comp->funcs && comp->funcs->stop)
  94                 comp->funcs->stop(comp);
  95 }
  96
  97 static inline void mtk_ddp_comp_enable_vblank(struct mtk_ddp_comp *comp,
  98                                               struct drm_crtc *crtc)
  99 {
 100         if (comp->funcs && comp->funcs->enable_vblank)
 101                 comp->funcs->enable_vblank(comp, crtc);
 102 }
 103
 104 static inline void mtk_ddp_comp_disable_vblank(struct mtk_ddp_comp *comp)
 105 {
 106         if (comp->funcs && comp->funcs->disable_vblank)
 107                 comp->funcs->disable_vblank(comp);
 108 }
 109
 110 static inline
 111 unsigned int mtk_ddp_comp_supported_rotations(struct mtk_ddp_comp *comp)
 112 {
 113         if (comp->funcs && comp->funcs->supported_rotations)
 114                 return comp->funcs->supported_rotations(comp);
 115
 116         return 0;
 117 }
 118
 119 static inline unsigned int mtk_ddp_comp_layer_nr(struct mtk_ddp_comp *comp)
 120 {
 121         if (comp->funcs && comp->funcs->layer_nr)
 122                 return comp->funcs->layer_nr(comp);
 123
 124         return 0;
 125 }
 126
 127 static inline int mtk_ddp_comp_layer_check(struct mtk_ddp_comp *comp,
 128                                            unsigned int idx,
 129                                            struct mtk_plane_state *state)
 130 {
 131         if (comp->funcs && comp->funcs->layer_check)
 132                 return comp->funcs->layer_check(comp, idx, state);
 133         return 0;
 134 }
 135
 136 static inline void mtk_ddp_comp_layer_config(struct mtk_ddp_comp *comp,
 137                                              unsigned int idx,
 138                                              struct mtk_plane_state *state,
 139                                              struct cmdq_pkt *cmdq_pkt)
 140 {
 141         if (comp->funcs && comp->funcs->layer_config)
 142                 comp->funcs->layer_config(comp, idx, state, cmdq_pkt);
 143 }
 144
 145 static inline void mtk_ddp_gamma_set(struct mtk_ddp_comp *comp,
 146                                      struct drm_crtc_state *state)
 147 {
 148         if (comp->funcs && comp->funcs->gamma_set)
 149                 comp->funcs->gamma_set(comp, state);
 150 }
 151
 152 static inline void mtk_ddp_comp_bgclr_in_on(struct mtk_ddp_comp *comp)
 153 {
 154         if (comp->funcs && comp->funcs->bgclr_in_on)
 155                 comp->funcs->bgclr_in_on(comp);
 156 }
 157
 158 static inline void mtk_ddp_comp_bgclr_in_off(struct mtk_ddp_comp *comp)
 159 {
 160         if (comp->funcs && comp->funcs->bgclr_in_off)
 161                 comp->funcs->bgclr_in_off(comp);
 162 }
 163
 164 static inline void mtk_ddp_ctm_set(struct mtk_ddp_comp *comp,
 165                                    struct drm_crtc_state *state)
 166 {
 167         if (comp->funcs && comp->funcs->ctm_set)
 168                 comp->funcs->ctm_set(comp, state);
 169 }
 170
 171 int mtk_ddp_comp_get_id(struct device_node *node,
 172                         enum mtk_ddp_comp_type comp_type);
 173 unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm,
 174                                                 struct mtk_ddp_comp ddp_comp);
 175 int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_node,
 176                       struct mtk_ddp_comp *comp, enum mtk_ddp_comp_id comp_id,
 177                       const struct mtk_ddp_comp_funcs *funcs);
 178 int mtk_ddp_comp_register(struct drm_device *drm, struct mtk_ddp_comp *comp);
 179 void mtk_ddp_comp_unregister(struct drm_device *drm, struct mtk_ddp_comp *comp);
 180 void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc,
 181                     unsigned int CFG, struct cmdq_pkt *cmdq_pkt);
 182 enum mtk_ddp_comp_type mtk_ddp_comp_get_type(enum mtk_ddp_comp_id comp_id);
 183 void mtk_ddp_write(struct cmdq_pkt *cmdq_pkt, unsigned int value,
 184                    struct mtk_ddp_comp *comp, unsigned int offset);
 185 void mtk_ddp_write_relaxed(struct cmdq_pkt *cmdq_pkt, unsigned int value,
 186                            struct mtk_ddp_comp *comp, unsigned int offset);
 187 void mtk_ddp_write_mask(struct cmdq_pkt *cmdq_pkt, unsigned int value,
 188                         struct mtk_ddp_comp *comp, unsigned int offset,
 189                         unsigned int mask);
 190 #endif /* MTK_DRM_DDP_COMP_H */