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[J-linux.git] / drivers / gpu / drm / mediatek / mtk_ddp_comp.h
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (c) 2015 MediaTek Inc.
4  */
5
6 #ifndef MTK_DDP_COMP_H
7 #define MTK_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 #include <drm/drm_modes.h>
16
17 struct device;
18 struct device_node;
19 struct drm_crtc;
20 struct drm_device;
21 struct mtk_plane_state;
22 struct drm_crtc_state;
23
24 enum mtk_ddp_comp_type {
25         MTK_DISP_AAL,
26         MTK_DISP_BLS,
27         MTK_DISP_CCORR,
28         MTK_DISP_COLOR,
29         MTK_DISP_DITHER,
30         MTK_DISP_DSC,
31         MTK_DISP_GAMMA,
32         MTK_DISP_MERGE,
33         MTK_DISP_MUTEX,
34         MTK_DISP_OD,
35         MTK_DISP_OVL,
36         MTK_DISP_OVL_2L,
37         MTK_DISP_OVL_ADAPTOR,
38         MTK_DISP_POSTMASK,
39         MTK_DISP_PWM,
40         MTK_DISP_RDMA,
41         MTK_DISP_UFOE,
42         MTK_DISP_WDMA,
43         MTK_DPI,
44         MTK_DP_INTF,
45         MTK_DSI,
46         MTK_DDP_COMP_TYPE_MAX,
47 };
48
49 struct mtk_ddp_comp;
50 struct cmdq_pkt;
51 struct mtk_ddp_comp_funcs {
52         int (*power_on)(struct device *dev);
53         void (*power_off)(struct device *dev);
54         int (*clk_enable)(struct device *dev);
55         void (*clk_disable)(struct device *dev);
56         void (*config)(struct device *dev, unsigned int w,
57                        unsigned int h, unsigned int vrefresh,
58                        unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
59         void (*start)(struct device *dev);
60         void (*stop)(struct device *dev);
61         void (*register_vblank_cb)(struct device *dev,
62                                    void (*vblank_cb)(void *),
63                                    void *vblank_cb_data);
64         void (*unregister_vblank_cb)(struct device *dev);
65         void (*enable_vblank)(struct device *dev);
66         void (*disable_vblank)(struct device *dev);
67         unsigned int (*supported_rotations)(struct device *dev);
68         unsigned int (*layer_nr)(struct device *dev);
69         int (*layer_check)(struct device *dev,
70                            unsigned int idx,
71                            struct mtk_plane_state *state);
72         void (*layer_config)(struct device *dev, unsigned int idx,
73                              struct mtk_plane_state *state,
74                              struct cmdq_pkt *cmdq_pkt);
75         unsigned int (*gamma_get_lut_size)(struct device *dev);
76         void (*gamma_set)(struct device *dev,
77                           struct drm_crtc_state *state);
78         void (*bgclr_in_on)(struct device *dev);
79         void (*bgclr_in_off)(struct device *dev);
80         void (*ctm_set)(struct device *dev,
81                         struct drm_crtc_state *state);
82         struct device * (*dma_dev_get)(struct device *dev);
83         u32 (*get_blend_modes)(struct device *dev);
84         const u32 *(*get_formats)(struct device *dev);
85         size_t (*get_num_formats)(struct device *dev);
86         void (*connect)(struct device *dev, struct device *mmsys_dev, unsigned int next);
87         void (*disconnect)(struct device *dev, struct device *mmsys_dev, unsigned int next);
88         void (*add)(struct device *dev, struct mtk_mutex *mutex);
89         void (*remove)(struct device *dev, struct mtk_mutex *mutex);
90         unsigned int (*encoder_index)(struct device *dev);
91         enum drm_mode_status (*mode_valid)(struct device *dev, const struct drm_display_mode *mode);
92 };
93
94 struct mtk_ddp_comp {
95         struct device *dev;
96         int irq;
97         unsigned int id;
98         int encoder_index;
99         const struct mtk_ddp_comp_funcs *funcs;
100 };
101
102 static inline int mtk_ddp_comp_power_on(struct mtk_ddp_comp *comp)
103 {
104         if (comp->funcs && comp->funcs->power_on)
105                 return comp->funcs->power_on(comp->dev);
106         else
107                 return pm_runtime_resume_and_get(comp->dev);
108         return 0;
109 }
110
111 static inline void mtk_ddp_comp_power_off(struct mtk_ddp_comp *comp)
112 {
113         if (comp->funcs && comp->funcs->power_off)
114                 comp->funcs->power_off(comp->dev);
115         else
116                 pm_runtime_put(comp->dev);
117 }
118
119 static inline int mtk_ddp_comp_clk_enable(struct mtk_ddp_comp *comp)
120 {
121         if (comp->funcs && comp->funcs->clk_enable)
122                 return comp->funcs->clk_enable(comp->dev);
123
124         return 0;
125 }
126
127 static inline void mtk_ddp_comp_clk_disable(struct mtk_ddp_comp *comp)
128 {
129         if (comp->funcs && comp->funcs->clk_disable)
130                 comp->funcs->clk_disable(comp->dev);
131 }
132
133 static inline
134 enum drm_mode_status mtk_ddp_comp_mode_valid(struct mtk_ddp_comp *comp,
135                                              const struct drm_display_mode *mode)
136 {
137         if (comp && comp->funcs && comp->funcs->mode_valid)
138                 return comp->funcs->mode_valid(comp->dev, mode);
139         return MODE_OK;
140 }
141
142 static inline void mtk_ddp_comp_config(struct mtk_ddp_comp *comp,
143                                        unsigned int w, unsigned int h,
144                                        unsigned int vrefresh, unsigned int bpc,
145                                        struct cmdq_pkt *cmdq_pkt)
146 {
147         if (comp->funcs && comp->funcs->config)
148                 comp->funcs->config(comp->dev, w, h, vrefresh, bpc, cmdq_pkt);
149 }
150
151 static inline void mtk_ddp_comp_start(struct mtk_ddp_comp *comp)
152 {
153         if (comp->funcs && comp->funcs->start)
154                 comp->funcs->start(comp->dev);
155 }
156
157 static inline void mtk_ddp_comp_stop(struct mtk_ddp_comp *comp)
158 {
159         if (comp->funcs && comp->funcs->stop)
160                 comp->funcs->stop(comp->dev);
161 }
162
163 static inline void mtk_ddp_comp_register_vblank_cb(struct mtk_ddp_comp *comp,
164                                                    void (*vblank_cb)(void *),
165                                                    void *vblank_cb_data)
166 {
167         if (comp->funcs && comp->funcs->register_vblank_cb)
168                 comp->funcs->register_vblank_cb(comp->dev, vblank_cb,
169                                                 vblank_cb_data);
170 }
171
172 static inline void mtk_ddp_comp_unregister_vblank_cb(struct mtk_ddp_comp *comp)
173 {
174         if (comp->funcs && comp->funcs->unregister_vblank_cb)
175                 comp->funcs->unregister_vblank_cb(comp->dev);
176 }
177
178 static inline void mtk_ddp_comp_enable_vblank(struct mtk_ddp_comp *comp)
179 {
180         if (comp->funcs && comp->funcs->enable_vblank)
181                 comp->funcs->enable_vblank(comp->dev);
182 }
183
184 static inline void mtk_ddp_comp_disable_vblank(struct mtk_ddp_comp *comp)
185 {
186         if (comp->funcs && comp->funcs->disable_vblank)
187                 comp->funcs->disable_vblank(comp->dev);
188 }
189
190 static inline
191 unsigned int mtk_ddp_comp_supported_rotations(struct mtk_ddp_comp *comp)
192 {
193         if (comp->funcs && comp->funcs->supported_rotations)
194                 return comp->funcs->supported_rotations(comp->dev);
195
196         /*
197          * In order to pass IGT tests, DRM_MODE_ROTATE_0 is required when
198          * rotation is not supported.
199          */
200         return DRM_MODE_ROTATE_0;
201 }
202
203 static inline unsigned int mtk_ddp_comp_layer_nr(struct mtk_ddp_comp *comp)
204 {
205         if (comp->funcs && comp->funcs->layer_nr)
206                 return comp->funcs->layer_nr(comp->dev);
207
208         return 0;
209 }
210
211 static inline int mtk_ddp_comp_layer_check(struct mtk_ddp_comp *comp,
212                                            unsigned int idx,
213                                            struct mtk_plane_state *state)
214 {
215         if (comp->funcs && comp->funcs->layer_check)
216                 return comp->funcs->layer_check(comp->dev, idx, state);
217         return 0;
218 }
219
220 static inline void mtk_ddp_comp_layer_config(struct mtk_ddp_comp *comp,
221                                              unsigned int idx,
222                                              struct mtk_plane_state *state,
223                                              struct cmdq_pkt *cmdq_pkt)
224 {
225         if (comp->funcs && comp->funcs->layer_config)
226                 comp->funcs->layer_config(comp->dev, idx, state, cmdq_pkt);
227 }
228
229 static inline unsigned int mtk_ddp_gamma_get_lut_size(struct mtk_ddp_comp *comp)
230 {
231         if (comp->funcs && comp->funcs->gamma_get_lut_size)
232                 return comp->funcs->gamma_get_lut_size(comp->dev);
233
234         return 0;
235 }
236
237 static inline void mtk_ddp_gamma_set(struct mtk_ddp_comp *comp,
238                                      struct drm_crtc_state *state)
239 {
240         if (comp->funcs && comp->funcs->gamma_set)
241                 comp->funcs->gamma_set(comp->dev, state);
242 }
243
244 static inline void mtk_ddp_comp_bgclr_in_on(struct mtk_ddp_comp *comp)
245 {
246         if (comp->funcs && comp->funcs->bgclr_in_on)
247                 comp->funcs->bgclr_in_on(comp->dev);
248 }
249
250 static inline void mtk_ddp_comp_bgclr_in_off(struct mtk_ddp_comp *comp)
251 {
252         if (comp->funcs && comp->funcs->bgclr_in_off)
253                 comp->funcs->bgclr_in_off(comp->dev);
254 }
255
256 static inline void mtk_ddp_ctm_set(struct mtk_ddp_comp *comp,
257                                    struct drm_crtc_state *state)
258 {
259         if (comp->funcs && comp->funcs->ctm_set)
260                 comp->funcs->ctm_set(comp->dev, state);
261 }
262
263 static inline struct device *mtk_ddp_comp_dma_dev_get(struct mtk_ddp_comp *comp)
264 {
265         if (comp->funcs && comp->funcs->dma_dev_get)
266                 return comp->funcs->dma_dev_get(comp->dev);
267         return comp->dev;
268 }
269
270 static inline
271 u32 mtk_ddp_comp_get_blend_modes(struct mtk_ddp_comp *comp)
272 {
273         if (comp->funcs && comp->funcs->get_blend_modes)
274                 return comp->funcs->get_blend_modes(comp->dev);
275
276         return 0;
277 }
278
279 static inline
280 const u32 *mtk_ddp_comp_get_formats(struct mtk_ddp_comp *comp)
281 {
282         if (comp->funcs && comp->funcs->get_formats)
283                 return comp->funcs->get_formats(comp->dev);
284
285         return NULL;
286 }
287
288 static inline
289 size_t mtk_ddp_comp_get_num_formats(struct mtk_ddp_comp *comp)
290 {
291         if (comp->funcs && comp->funcs->get_num_formats)
292                 return comp->funcs->get_num_formats(comp->dev);
293
294         return 0;
295 }
296
297 static inline bool mtk_ddp_comp_add(struct mtk_ddp_comp *comp, struct mtk_mutex *mutex)
298 {
299         if (comp->funcs && comp->funcs->add) {
300                 comp->funcs->add(comp->dev, mutex);
301                 return true;
302         }
303         return false;
304 }
305
306 static inline bool mtk_ddp_comp_remove(struct mtk_ddp_comp *comp, struct mtk_mutex *mutex)
307 {
308         if (comp->funcs && comp->funcs->remove) {
309                 comp->funcs->remove(comp->dev, mutex);
310                 return true;
311         }
312         return false;
313 }
314
315 static inline bool mtk_ddp_comp_connect(struct mtk_ddp_comp *comp, struct device *mmsys_dev,
316                                         unsigned int next)
317 {
318         if (comp->funcs && comp->funcs->connect) {
319                 comp->funcs->connect(comp->dev, mmsys_dev, next);
320                 return true;
321         }
322         return false;
323 }
324
325 static inline bool mtk_ddp_comp_disconnect(struct mtk_ddp_comp *comp, struct device *mmsys_dev,
326                                            unsigned int next)
327 {
328         if (comp->funcs && comp->funcs->disconnect) {
329                 comp->funcs->disconnect(comp->dev, mmsys_dev, next);
330                 return true;
331         }
332         return false;
333 }
334
335 static inline void mtk_ddp_comp_encoder_index_set(struct mtk_ddp_comp *comp)
336 {
337         if (comp->funcs && comp->funcs->encoder_index)
338                 comp->encoder_index = (int)comp->funcs->encoder_index(comp->dev);
339 }
340
341 int mtk_ddp_comp_get_id(struct device_node *node,
342                         enum mtk_ddp_comp_type comp_type);
343 int mtk_find_possible_crtcs(struct drm_device *drm, struct device *dev);
344 int mtk_ddp_comp_init(struct device_node *comp_node, struct mtk_ddp_comp *comp,
345                       unsigned int comp_id);
346 enum mtk_ddp_comp_type mtk_ddp_comp_get_type(unsigned int comp_id);
347 void mtk_ddp_write(struct cmdq_pkt *cmdq_pkt, unsigned int value,
348                    struct cmdq_client_reg *cmdq_reg, void __iomem *regs,
349                    unsigned int offset);
350 void mtk_ddp_write_relaxed(struct cmdq_pkt *cmdq_pkt, unsigned int value,
351                            struct cmdq_client_reg *cmdq_reg, void __iomem *regs,
352                            unsigned int offset);
353 void mtk_ddp_write_mask(struct cmdq_pkt *cmdq_pkt, unsigned int value,
354                         struct cmdq_client_reg *cmdq_reg, void __iomem *regs,
355                         unsigned int offset, unsigned int mask);
356 #endif /* MTK_DDP_COMP_H */
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