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;
 24struct drm_crtc_state;
 25
 26enum 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
 42enum 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
 64struct mtk_ddp_comp;
 65
 66struct 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
 81struct 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
 90static 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
 98static 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
104static 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
110static 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
117static 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
123static 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
130static 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
137static 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
145static 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
152int mtk_ddp_comp_get_id(struct device_node *node,
153			enum mtk_ddp_comp_type comp_type);
154int 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);
157int mtk_ddp_comp_register(struct drm_device *drm, struct mtk_ddp_comp *comp);
158void mtk_ddp_comp_unregister(struct drm_device *drm, struct mtk_ddp_comp *comp);
159void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc,
160		    unsigned int CFG);
161
162#endif /* MTK_DRM_DDP_COMP_H */