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
  25 enum mtk_ddp_comp_type {
  26         MTK_DISP_OVL,
  27         MTK_DISP_RDMA,
  28         MTK_DISP_WDMA,
  29         MTK_DISP_COLOR,
  30         MTK_DISP_AAL,
  31         MTK_DISP_GAMMA,
  32         MTK_DISP_UFOE,
  33         MTK_DSI,
  34         MTK_DPI,
  35         MTK_DISP_PWM,
  36         MTK_DISP_MUTEX,
  37         MTK_DISP_OD,
  38         MTK_DDP_COMP_TYPE_MAX,
  39 };
  40
  41 enum mtk_ddp_comp_id {
  42         DDP_COMPONENT_AAL,
  43         DDP_COMPONENT_COLOR0,
  44         DDP_COMPONENT_COLOR1,
  45         DDP_COMPONENT_DPI0,
  46         DDP_COMPONENT_DSI0,
  47         DDP_COMPONENT_DSI1,
  48         DDP_COMPONENT_GAMMA,
  49         DDP_COMPONENT_OD,
  50         DDP_COMPONENT_OVL0,
  51         DDP_COMPONENT_OVL1,
  52         DDP_COMPONENT_PWM0,
  53         DDP_COMPONENT_PWM1,
  54         DDP_COMPONENT_RDMA0,
  55         DDP_COMPONENT_RDMA1,
  56         DDP_COMPONENT_RDMA2,
  57         DDP_COMPONENT_UFOE,
  58         DDP_COMPONENT_WDMA0,
  59         DDP_COMPONENT_WDMA1,
  60         DDP_COMPONENT_ID_MAX,
  61 };
  62
  63 struct mtk_ddp_comp;
  64
  65 struct mtk_ddp_comp_funcs {
  66         void (*config)(struct mtk_ddp_comp *comp, unsigned int w,
  67                        unsigned int h, unsigned int vrefresh);
  68         void (*start)(struct mtk_ddp_comp *comp);
  69         void (*stop)(struct mtk_ddp_comp *comp);
  70         void (*enable_vblank)(struct mtk_ddp_comp *comp, struct drm_crtc *crtc);
  71         void (*disable_vblank)(struct mtk_ddp_comp *comp);
  72         void (*layer_on)(struct mtk_ddp_comp *comp, unsigned int idx);
  73         void (*layer_off)(struct mtk_ddp_comp *comp, unsigned int idx);
  74         void (*layer_config)(struct mtk_ddp_comp *comp, unsigned int idx,
  75                              struct mtk_plane_state *state);
  76 };
  77
  78 struct mtk_ddp_comp {
  79         struct clk *clk;
  80         void __iomem *regs;
  81         int irq;
  82         struct device *larb_dev;
  83         enum mtk_ddp_comp_id id;
  84         const struct mtk_ddp_comp_funcs *funcs;
  85 };
  86
  87 static inline void mtk_ddp_comp_config(struct mtk_ddp_comp *comp,
  88                                        unsigned int w, unsigned int h,
  89                                        unsigned int vrefresh)
  90 {
  91         if (comp->funcs && comp->funcs->config)
  92                 comp->funcs->config(comp, w, h, vrefresh);
  93 }
  94
  95 static inline void mtk_ddp_comp_start(struct mtk_ddp_comp *comp)
  96 {
  97         if (comp->funcs && comp->funcs->start)
  98                 comp->funcs->start(comp);
  99 }
 100
 101 static inline void mtk_ddp_comp_stop(struct mtk_ddp_comp *comp)
 102 {
 103         if (comp->funcs && comp->funcs->stop)
 104                 comp->funcs->stop(comp);
 105 }
 106
 107 static inline void mtk_ddp_comp_enable_vblank(struct mtk_ddp_comp *comp,
 108                                               struct drm_crtc *crtc)
 109 {
 110         if (comp->funcs && comp->funcs->enable_vblank)
 111                 comp->funcs->enable_vblank(comp, crtc);
 112 }
 113
 114 static inline void mtk_ddp_comp_disable_vblank(struct mtk_ddp_comp *comp)
 115 {
 116         if (comp->funcs && comp->funcs->disable_vblank)
 117                 comp->funcs->disable_vblank(comp);
 118 }
 119
 120 static inline void mtk_ddp_comp_layer_on(struct mtk_ddp_comp *comp,
 121                                          unsigned int idx)
 122 {
 123         if (comp->funcs && comp->funcs->layer_on)
 124                 comp->funcs->layer_on(comp, idx);
 125 }
 126
 127 static inline void mtk_ddp_comp_layer_off(struct mtk_ddp_comp *comp,
 128                                           unsigned int idx)
 129 {
 130         if (comp->funcs && comp->funcs->layer_off)
 131                 comp->funcs->layer_off(comp, idx);
 132 }
 133
 134 static inline void mtk_ddp_comp_layer_config(struct mtk_ddp_comp *comp,
 135                                              unsigned int idx,
 136                                              struct mtk_plane_state *state)
 137 {
 138         if (comp->funcs && comp->funcs->layer_config)
 139                 comp->funcs->layer_config(comp, idx, state);
 140 }
 141
 142 int mtk_ddp_comp_get_id(struct device_node *node,
 143                         enum mtk_ddp_comp_type comp_type);
 144 int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_node,
 145                       struct mtk_ddp_comp *comp, enum mtk_ddp_comp_id comp_id,
 146                       const struct mtk_ddp_comp_funcs *funcs);
 147 int mtk_ddp_comp_register(struct drm_device *drm, struct mtk_ddp_comp *comp);
 148 void mtk_ddp_comp_unregister(struct drm_device *drm, struct mtk_ddp_comp *comp);
 149
 150 #endif /* MTK_DRM_DDP_COMP_H */