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/pm_runtime.h>
11 #include <linux/soc/mediatek/mtk-cmdq.h>
12 #include <linux/soc/mediatek/mtk-mmsys.h>
13 #include <linux/soc/mediatek/mtk-mutex.h>
14 
15 struct device;
16 struct device_node;
17 struct drm_crtc;
18 struct drm_device;
19 struct mtk_plane_state;
20 struct drm_crtc_state;
21 
22 enum mtk_ddp_comp_type {
23 	MTK_DISP_AAL,
24 	MTK_DISP_BLS,
25 	MTK_DISP_CCORR,
26 	MTK_DISP_COLOR,
27 	MTK_DISP_DITHER,
28 	MTK_DISP_DSC,
29 	MTK_DISP_GAMMA,
30 	MTK_DISP_MERGE,
31 	MTK_DISP_MUTEX,
32 	MTK_DISP_OD,
33 	MTK_DISP_OVL,
34 	MTK_DISP_OVL_2L,
35 	MTK_DISP_OVL_ADAPTOR,
36 	MTK_DISP_POSTMASK,
37 	MTK_DISP_PWM,
38 	MTK_DISP_RDMA,
39 	MTK_DISP_UFOE,
40 	MTK_DISP_WDMA,
41 	MTK_DPI,
42 	MTK_DP_INTF,
43 	MTK_DSI,
44 	MTK_DDP_COMP_TYPE_MAX,
45 };
46 
47 struct mtk_ddp_comp;
48 struct cmdq_pkt;
49 struct mtk_ddp_comp_funcs {
50 	int (*power_on)(struct device *dev);
51 	void (*power_off)(struct device *dev);
52 	int (*clk_enable)(struct device *dev);
53 	void (*clk_disable)(struct device *dev);
54 	void (*config)(struct device *dev, unsigned int w,
55 		       unsigned int h, unsigned int vrefresh,
56 		       unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
57 	void (*start)(struct device *dev);
58 	void (*stop)(struct device *dev);
59 	void (*register_vblank_cb)(struct device *dev,
60 				   void (*vblank_cb)(void *),
61 				   void *vblank_cb_data);
62 	void (*unregister_vblank_cb)(struct device *dev);
63 	void (*enable_vblank)(struct device *dev);
64 	void (*disable_vblank)(struct device *dev);
65 	unsigned int (*supported_rotations)(struct device *dev);
66 	unsigned int (*layer_nr)(struct device *dev);
67 	int (*layer_check)(struct device *dev,
68 			   unsigned int idx,
69 			   struct mtk_plane_state *state);
70 	void (*layer_config)(struct device *dev, unsigned int idx,
71 			     struct mtk_plane_state *state,
72 			     struct cmdq_pkt *cmdq_pkt);
73 	unsigned int (*gamma_get_lut_size)(struct device *dev);
74 	void (*gamma_set)(struct device *dev,
75 			  struct drm_crtc_state *state);
76 	void (*bgclr_in_on)(struct device *dev);
77 	void (*bgclr_in_off)(struct device *dev);
78 	void (*ctm_set)(struct device *dev,
79 			struct drm_crtc_state *state);
80 	struct device * (*dma_dev_get)(struct device *dev);
81 	const u32 *(*get_formats)(struct device *dev);
82 	size_t (*get_num_formats)(struct device *dev);
83 	void (*connect)(struct device *dev, struct device *mmsys_dev, unsigned int next);
84 	void (*disconnect)(struct device *dev, struct device *mmsys_dev, unsigned int next);
85 	void (*add)(struct device *dev, struct mtk_mutex *mutex);
86 	void (*remove)(struct device *dev, struct mtk_mutex *mutex);
87 	unsigned int (*encoder_index)(struct device *dev);
88 };
89 
90 struct mtk_ddp_comp {
91 	struct device *dev;
92 	int irq;
93 	unsigned int id;
94 	int encoder_index;
95 	const struct mtk_ddp_comp_funcs *funcs;
96 };
97 
mtk_ddp_comp_power_on(struct mtk_ddp_comp * comp)98 static inline int mtk_ddp_comp_power_on(struct mtk_ddp_comp *comp)
99 {
100 	if (comp->funcs && comp->funcs->power_on)
101 		return comp->funcs->power_on(comp->dev);
102 	else
103 		return pm_runtime_resume_and_get(comp->dev);
104 	return 0;
105 }
106 
mtk_ddp_comp_power_off(struct mtk_ddp_comp * comp)107 static inline void mtk_ddp_comp_power_off(struct mtk_ddp_comp *comp)
108 {
109 	if (comp->funcs && comp->funcs->power_off)
110 		comp->funcs->power_off(comp->dev);
111 	else
112 		pm_runtime_put(comp->dev);
113 }
114 
mtk_ddp_comp_clk_enable(struct mtk_ddp_comp * comp)115 static inline int mtk_ddp_comp_clk_enable(struct mtk_ddp_comp *comp)
116 {
117 	if (comp->funcs && comp->funcs->clk_enable)
118 		return comp->funcs->clk_enable(comp->dev);
119 
120 	return 0;
121 }
122 
mtk_ddp_comp_clk_disable(struct mtk_ddp_comp * comp)123 static inline void mtk_ddp_comp_clk_disable(struct mtk_ddp_comp *comp)
124 {
125 	if (comp->funcs && comp->funcs->clk_disable)
126 		comp->funcs->clk_disable(comp->dev);
127 }
128 
mtk_ddp_comp_config(struct mtk_ddp_comp * comp,unsigned int w,unsigned int h,unsigned int vrefresh,unsigned int bpc,struct cmdq_pkt * cmdq_pkt)129 static inline void mtk_ddp_comp_config(struct mtk_ddp_comp *comp,
130 				       unsigned int w, unsigned int h,
131 				       unsigned int vrefresh, unsigned int bpc,
132 				       struct cmdq_pkt *cmdq_pkt)
133 {
134 	if (comp->funcs && comp->funcs->config)
135 		comp->funcs->config(comp->dev, w, h, vrefresh, bpc, cmdq_pkt);
136 }
137 
mtk_ddp_comp_start(struct mtk_ddp_comp * comp)138 static inline void mtk_ddp_comp_start(struct mtk_ddp_comp *comp)
139 {
140 	if (comp->funcs && comp->funcs->start)
141 		comp->funcs->start(comp->dev);
142 }
143 
mtk_ddp_comp_stop(struct mtk_ddp_comp * comp)144 static inline void mtk_ddp_comp_stop(struct mtk_ddp_comp *comp)
145 {
146 	if (comp->funcs && comp->funcs->stop)
147 		comp->funcs->stop(comp->dev);
148 }
149 
mtk_ddp_comp_register_vblank_cb(struct mtk_ddp_comp * comp,void (* vblank_cb)(void *),void * vblank_cb_data)150 static inline void mtk_ddp_comp_register_vblank_cb(struct mtk_ddp_comp *comp,
151 						   void (*vblank_cb)(void *),
152 						   void *vblank_cb_data)
153 {
154 	if (comp->funcs && comp->funcs->register_vblank_cb)
155 		comp->funcs->register_vblank_cb(comp->dev, vblank_cb,
156 						vblank_cb_data);
157 }
158 
mtk_ddp_comp_unregister_vblank_cb(struct mtk_ddp_comp * comp)159 static inline void mtk_ddp_comp_unregister_vblank_cb(struct mtk_ddp_comp *comp)
160 {
161 	if (comp->funcs && comp->funcs->unregister_vblank_cb)
162 		comp->funcs->unregister_vblank_cb(comp->dev);
163 }
164 
mtk_ddp_comp_enable_vblank(struct mtk_ddp_comp * comp)165 static inline void mtk_ddp_comp_enable_vblank(struct mtk_ddp_comp *comp)
166 {
167 	if (comp->funcs && comp->funcs->enable_vblank)
168 		comp->funcs->enable_vblank(comp->dev);
169 }
170 
mtk_ddp_comp_disable_vblank(struct mtk_ddp_comp * comp)171 static inline void mtk_ddp_comp_disable_vblank(struct mtk_ddp_comp *comp)
172 {
173 	if (comp->funcs && comp->funcs->disable_vblank)
174 		comp->funcs->disable_vblank(comp->dev);
175 }
176 
177 static inline
mtk_ddp_comp_supported_rotations(struct mtk_ddp_comp * comp)178 unsigned int mtk_ddp_comp_supported_rotations(struct mtk_ddp_comp *comp)
179 {
180 	if (comp->funcs && comp->funcs->supported_rotations)
181 		return comp->funcs->supported_rotations(comp->dev);
182 
183 	return 0;
184 }
185 
mtk_ddp_comp_layer_nr(struct mtk_ddp_comp * comp)186 static inline unsigned int mtk_ddp_comp_layer_nr(struct mtk_ddp_comp *comp)
187 {
188 	if (comp->funcs && comp->funcs->layer_nr)
189 		return comp->funcs->layer_nr(comp->dev);
190 
191 	return 0;
192 }
193 
mtk_ddp_comp_layer_check(struct mtk_ddp_comp * comp,unsigned int idx,struct mtk_plane_state * state)194 static inline int mtk_ddp_comp_layer_check(struct mtk_ddp_comp *comp,
195 					   unsigned int idx,
196 					   struct mtk_plane_state *state)
197 {
198 	if (comp->funcs && comp->funcs->layer_check)
199 		return comp->funcs->layer_check(comp->dev, idx, state);
200 	return 0;
201 }
202 
mtk_ddp_comp_layer_config(struct mtk_ddp_comp * comp,unsigned int idx,struct mtk_plane_state * state,struct cmdq_pkt * cmdq_pkt)203 static inline void mtk_ddp_comp_layer_config(struct mtk_ddp_comp *comp,
204 					     unsigned int idx,
205 					     struct mtk_plane_state *state,
206 					     struct cmdq_pkt *cmdq_pkt)
207 {
208 	if (comp->funcs && comp->funcs->layer_config)
209 		comp->funcs->layer_config(comp->dev, idx, state, cmdq_pkt);
210 }
211 
mtk_ddp_gamma_get_lut_size(struct mtk_ddp_comp * comp)212 static inline unsigned int mtk_ddp_gamma_get_lut_size(struct mtk_ddp_comp *comp)
213 {
214 	if (comp->funcs && comp->funcs->gamma_get_lut_size)
215 		return comp->funcs->gamma_get_lut_size(comp->dev);
216 
217 	return 0;
218 }
219 
mtk_ddp_gamma_set(struct mtk_ddp_comp * comp,struct drm_crtc_state * state)220 static inline void mtk_ddp_gamma_set(struct mtk_ddp_comp *comp,
221 				     struct drm_crtc_state *state)
222 {
223 	if (comp->funcs && comp->funcs->gamma_set)
224 		comp->funcs->gamma_set(comp->dev, state);
225 }
226 
mtk_ddp_comp_bgclr_in_on(struct mtk_ddp_comp * comp)227 static inline void mtk_ddp_comp_bgclr_in_on(struct mtk_ddp_comp *comp)
228 {
229 	if (comp->funcs && comp->funcs->bgclr_in_on)
230 		comp->funcs->bgclr_in_on(comp->dev);
231 }
232 
mtk_ddp_comp_bgclr_in_off(struct mtk_ddp_comp * comp)233 static inline void mtk_ddp_comp_bgclr_in_off(struct mtk_ddp_comp *comp)
234 {
235 	if (comp->funcs && comp->funcs->bgclr_in_off)
236 		comp->funcs->bgclr_in_off(comp->dev);
237 }
238 
mtk_ddp_ctm_set(struct mtk_ddp_comp * comp,struct drm_crtc_state * state)239 static inline void mtk_ddp_ctm_set(struct mtk_ddp_comp *comp,
240 				   struct drm_crtc_state *state)
241 {
242 	if (comp->funcs && comp->funcs->ctm_set)
243 		comp->funcs->ctm_set(comp->dev, state);
244 }
245 
mtk_ddp_comp_dma_dev_get(struct mtk_ddp_comp * comp)246 static inline struct device *mtk_ddp_comp_dma_dev_get(struct mtk_ddp_comp *comp)
247 {
248 	if (comp->funcs && comp->funcs->dma_dev_get)
249 		return comp->funcs->dma_dev_get(comp->dev);
250 	return comp->dev;
251 }
252 
253 static inline
mtk_ddp_comp_get_formats(struct mtk_ddp_comp * comp)254 const u32 *mtk_ddp_comp_get_formats(struct mtk_ddp_comp *comp)
255 {
256 	if (comp->funcs && comp->funcs->get_formats)
257 		return comp->funcs->get_formats(comp->dev);
258 
259 	return NULL;
260 }
261 
262 static inline
mtk_ddp_comp_get_num_formats(struct mtk_ddp_comp * comp)263 size_t mtk_ddp_comp_get_num_formats(struct mtk_ddp_comp *comp)
264 {
265 	if (comp->funcs && comp->funcs->get_num_formats)
266 		return comp->funcs->get_num_formats(comp->dev);
267 
268 	return 0;
269 }
270 
mtk_ddp_comp_add(struct mtk_ddp_comp * comp,struct mtk_mutex * mutex)271 static inline bool mtk_ddp_comp_add(struct mtk_ddp_comp *comp, struct mtk_mutex *mutex)
272 {
273 	if (comp->funcs && comp->funcs->add) {
274 		comp->funcs->add(comp->dev, mutex);
275 		return true;
276 	}
277 	return false;
278 }
279 
mtk_ddp_comp_remove(struct mtk_ddp_comp * comp,struct mtk_mutex * mutex)280 static inline bool mtk_ddp_comp_remove(struct mtk_ddp_comp *comp, struct mtk_mutex *mutex)
281 {
282 	if (comp->funcs && comp->funcs->remove) {
283 		comp->funcs->remove(comp->dev, mutex);
284 		return true;
285 	}
286 	return false;
287 }
288 
mtk_ddp_comp_connect(struct mtk_ddp_comp * comp,struct device * mmsys_dev,unsigned int next)289 static inline bool mtk_ddp_comp_connect(struct mtk_ddp_comp *comp, struct device *mmsys_dev,
290 					unsigned int next)
291 {
292 	if (comp->funcs && comp->funcs->connect) {
293 		comp->funcs->connect(comp->dev, mmsys_dev, next);
294 		return true;
295 	}
296 	return false;
297 }
298 
mtk_ddp_comp_disconnect(struct mtk_ddp_comp * comp,struct device * mmsys_dev,unsigned int next)299 static inline bool mtk_ddp_comp_disconnect(struct mtk_ddp_comp *comp, struct device *mmsys_dev,
300 					   unsigned int next)
301 {
302 	if (comp->funcs && comp->funcs->disconnect) {
303 		comp->funcs->disconnect(comp->dev, mmsys_dev, next);
304 		return true;
305 	}
306 	return false;
307 }
308 
mtk_ddp_comp_encoder_index_set(struct mtk_ddp_comp * comp)309 static inline void mtk_ddp_comp_encoder_index_set(struct mtk_ddp_comp *comp)
310 {
311 	if (comp->funcs && comp->funcs->encoder_index)
312 		comp->encoder_index = (int)comp->funcs->encoder_index(comp->dev);
313 }
314 
315 int mtk_ddp_comp_get_id(struct device_node *node,
316 			enum mtk_ddp_comp_type comp_type);
317 unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm,
318 						struct device *dev);
319 int mtk_ddp_comp_init(struct device_node *comp_node, struct mtk_ddp_comp *comp,
320 		      unsigned int comp_id);
321 enum mtk_ddp_comp_type mtk_ddp_comp_get_type(unsigned int comp_id);
322 void mtk_ddp_write(struct cmdq_pkt *cmdq_pkt, unsigned int value,
323 		   struct cmdq_client_reg *cmdq_reg, void __iomem *regs,
324 		   unsigned int offset);
325 void mtk_ddp_write_relaxed(struct cmdq_pkt *cmdq_pkt, unsigned int value,
326 			   struct cmdq_client_reg *cmdq_reg, void __iomem *regs,
327 			   unsigned int offset);
328 void mtk_ddp_write_mask(struct cmdq_pkt *cmdq_pkt, unsigned int value,
329 			struct cmdq_client_reg *cmdq_reg, void __iomem *regs,
330 			unsigned int offset, unsigned int mask);
331 #endif /* MTK_DRM_DDP_COMP_H */
332