LXR linux/drivers/gpu/drm/mediatek/mtk_drm_ddp

   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
  19struct device;
  20struct device_node;
  21struct drm_crtc;
  22struct drm_device;
  23struct mtk_plane_state;
  24
  25enum 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
  41enum 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
  63struct mtk_ddp_comp;
  64
  65struct 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
  78struct 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
  87static 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
  95static 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
 101static 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
 107static 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
 114static 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
 120static 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
 127static 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
 134static 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
 142int mtk_ddp_comp_get_id(struct device_node *node,
 143                        enum mtk_ddp_comp_type comp_type);
 144int 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);
 147int mtk_ddp_comp_register(struct drm_device *drm, struct mtk_ddp_comp *comp);
 148void mtk_ddp_comp_unregister(struct drm_device *drm, struct mtk_ddp_comp *comp);
 149
 150#endif /* MTK_DRM_DDP_COMP_H */
 151