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_DDP_COMP_TYPE_MAX,
  40 };
  41
  42 enum mtk_ddp_comp_id {
  43         DDP_COMPONENT_AAL,
  44         DDP_COMPONENT_COLOR0,
  45         DDP_COMPONENT_COLOR1,
  46         DDP_COMPONENT_DPI0,
  47         DDP_COMPONENT_DSI0,
  48         DDP_COMPONENT_DSI1,
  49         DDP_COMPONENT_GAMMA,
  50         DDP_COMPONENT_OD,
  51         DDP_COMPONENT_OVL0,
  52         DDP_COMPONENT_OVL1,
  53         DDP_COMPONENT_PWM0,
  54         DDP_COMPONENT_PWM1,
  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         void (*layer_on)(struct mtk_ddp_comp *comp, unsigned int idx);
  74         void (*layer_off)(struct mtk_ddp_comp *comp, unsigned int idx);
  75         void (*layer_config)(struct mtk_ddp_comp *comp, unsigned int idx,
  76                              struct mtk_plane_state *state);
  77         void (*gamma_set)(struct mtk_ddp_comp *comp,
  78                           struct drm_crtc_state *state);
  79 };
  80
  81 struct mtk_ddp_comp {
  82         struct clk *clk;
  83         void __iomem *regs;
  84         int irq;
  85         struct device *larb_dev;
  86         enum mtk_ddp_comp_id id;
  87         const struct mtk_ddp_comp_funcs *funcs;
  88 };
  89
  90 static inline void mtk_ddp_comp_config(struct mtk_ddp_comp *comp,
  91                                        unsigned int w, unsigned int h,
  92                                        unsigned int vrefresh, unsigned int bpc)
  93 {
  94         if (comp->funcs && comp->funcs->config)
  95                 comp->funcs->config(comp, w, h, vrefresh, bpc);
  96 }
  97
  98 static inline void mtk_ddp_comp_start(struct mtk_ddp_comp *comp)
  99 {
 100         if (comp->funcs && comp->funcs->start)
 101                 comp->funcs->start(comp);
 102 }
 103
 104 static inline void mtk_ddp_comp_stop(struct mtk_ddp_comp *comp)
 105 {
 106         if (comp->funcs && comp->funcs->stop)
 107                 comp->funcs->stop(comp);
 108 }
 109
 110 static inline void mtk_ddp_comp_enable_vblank(struct mtk_ddp_comp *comp,
 111                                               struct drm_crtc *crtc)
 112 {
 113         if (comp->funcs && comp->funcs->enable_vblank)
 114                 comp->funcs->enable_vblank(comp, crtc);
 115 }
 116
 117 static inline void mtk_ddp_comp_disable_vblank(struct mtk_ddp_comp *comp)
 118 {
 119         if (comp->funcs && comp->funcs->disable_vblank)
 120                 comp->funcs->disable_vblank(comp);
 121 }
 122
 123 static inline void mtk_ddp_comp_layer_on(struct mtk_ddp_comp *comp,
 124                                          unsigned int idx)
 125 {
 126         if (comp->funcs && comp->funcs->layer_on)
 127                 comp->funcs->layer_on(comp, idx);
 128 }
 129
 130 static inline void mtk_ddp_comp_layer_off(struct mtk_ddp_comp *comp,
 131                                           unsigned int idx)
 132 {
 133         if (comp->funcs && comp->funcs->layer_off)
 134                 comp->funcs->layer_off(comp, idx);
 135 }
 136
 137 static inline void mtk_ddp_comp_layer_config(struct mtk_ddp_comp *comp,
 138                                              unsigned int idx,
 139                                              struct mtk_plane_state *state)
 140 {
 141         if (comp->funcs && comp->funcs->layer_config)
 142                 comp->funcs->layer_config(comp, idx, state);
 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 int mtk_ddp_comp_get_id(struct device_node *node,
 153                         enum mtk_ddp_comp_type comp_type);
 154 int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_node,
 155                       struct mtk_ddp_comp *comp, enum mtk_ddp_comp_id comp_id,
 156                       const struct mtk_ddp_comp_funcs *funcs);
 157 int mtk_ddp_comp_register(struct drm_device *drm, struct mtk_ddp_comp *comp);
 158 void mtk_ddp_comp_unregister(struct drm_device *drm, struct mtk_ddp_comp *comp);
 159 void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc,
 160                     unsigned int CFG);
 161
 162 #endif /* MTK_DRM_DDP_COMP_H */