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[linux.git] / drivers / gpu / drm / amd / display / dc / dc_stream.h
1 /*
2  * Copyright 2012-14 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: AMD
23  *
24  */
25
26 #ifndef DC_STREAM_H_
27 #define DC_STREAM_H_
28
29 #include "dc_types.h"
30 #include "grph_object_defs.h"
31
32 /*******************************************************************************
33  * Stream Interfaces
34  ******************************************************************************/
35
36 struct dc_stream_status {
37         int primary_otg_inst;
38         int stream_enc_inst;
39         int plane_count;
40         struct dc_plane_state *plane_states[MAX_SURFACE_NUM];
41
42         /*
43          * link this stream passes through
44          */
45         struct dc_link *link;
46 };
47
48 struct dc_stream_state {
49         struct dc_sink *sink;
50         struct dc_crtc_timing timing;
51
52         struct rect src; /* composition area */
53         struct rect dst; /* stream addressable area */
54
55         struct audio_info audio_info;
56
57         struct freesync_context freesync_ctx;
58
59         struct dc_hdr_static_metadata hdr_static_metadata;
60         struct dc_transfer_func *out_transfer_func;
61         struct colorspace_transform gamut_remap_matrix;
62         struct csc_transform csc_color_matrix;
63
64         enum dc_color_space output_color_space;
65         enum dc_dither_option dither_option;
66
67         enum view_3d_format view_format;
68
69         bool ignore_msa_timing_param;
70         /* TODO: custom INFO packets */
71         /* TODO: ABM info (DMCU) */
72         /* TODO: PSR info */
73         /* TODO: CEA VIC */
74
75         /* from core_stream struct */
76         struct dc_context *ctx;
77
78         /* used by DCP and FMT */
79         struct bit_depth_reduction_params bit_depth_params;
80         struct clamping_and_pixel_encoding_params clamping;
81
82         int phy_pix_clk;
83         enum signal_type signal;
84         bool dpms_off;
85
86         struct dc_stream_status status;
87
88         struct dc_cursor_attributes cursor_attributes;
89         struct dc_cursor_position cursor_position;
90
91         /* from stream struct */
92         struct kref refcount;
93
94         struct crtc_trigger_info triggered_crtc_reset;
95
96         /* Computed state bits */
97         bool mode_changed : 1;
98
99 };
100
101 struct dc_stream_update {
102         struct rect src;
103         struct rect dst;
104         struct dc_transfer_func *out_transfer_func;
105         struct dc_hdr_static_metadata *hdr_static_metadata;
106 };
107
108 bool dc_is_stream_unchanged(
109         struct dc_stream_state *old_stream, struct dc_stream_state *stream);
110 bool dc_is_stream_scaling_unchanged(
111         struct dc_stream_state *old_stream, struct dc_stream_state *stream);
112
113 /*
114  * Set up surface attributes and associate to a stream
115  * The surfaces parameter is an absolute set of all surface active for the stream.
116  * If no surfaces are provided, the stream will be blanked; no memory read.
117  * Any flip related attribute changes must be done through this interface.
118  *
119  * After this call:
120  *   Surfaces attributes are programmed and configured to be composed into stream.
121  *   This does not trigger a flip.  No surface address is programmed.
122  */
123
124 bool dc_commit_planes_to_stream(
125                 struct dc *dc,
126                 struct dc_plane_state **plane_states,
127                 uint8_t new_plane_count,
128                 struct dc_stream_state *dc_stream,
129                 struct dc_state *state);
130
131 void dc_commit_updates_for_stream(struct dc *dc,
132                 struct dc_surface_update *srf_updates,
133                 int surface_count,
134                 struct dc_stream_state *stream,
135                 struct dc_stream_update *stream_update,
136                 struct dc_plane_state **plane_states,
137                 struct dc_state *state);
138 /*
139  * Log the current stream state.
140  */
141 void dc_stream_log(
142         const struct dc_stream_state *stream,
143         struct dal_logger *dc_logger,
144         enum dc_log_type log_type);
145
146 uint8_t dc_get_current_stream_count(struct dc *dc);
147 struct dc_stream_state *dc_get_stream_at_index(struct dc *dc, uint8_t i);
148
149 /*
150  * Return the current frame counter.
151  */
152 uint32_t dc_stream_get_vblank_counter(const struct dc_stream_state *stream);
153
154 /* TODO: Return parsed values rather than direct register read
155  * This has a dependency on the caller (amdgpu_get_crtc_scanoutpos)
156  * being refactored properly to be dce-specific
157  */
158 bool dc_stream_get_scanoutpos(const struct dc_stream_state *stream,
159                                   uint32_t *v_blank_start,
160                                   uint32_t *v_blank_end,
161                                   uint32_t *h_position,
162                                   uint32_t *v_position);
163
164 enum dc_status dc_add_stream_to_ctx(
165                         struct dc *dc,
166                 struct dc_state *new_ctx,
167                 struct dc_stream_state *stream);
168
169 enum dc_status dc_remove_stream_from_ctx(
170                 struct dc *dc,
171                         struct dc_state *new_ctx,
172                         struct dc_stream_state *stream);
173
174
175 bool dc_add_plane_to_context(
176                 const struct dc *dc,
177                 struct dc_stream_state *stream,
178                 struct dc_plane_state *plane_state,
179                 struct dc_state *context);
180
181 bool dc_remove_plane_from_context(
182                 const struct dc *dc,
183                 struct dc_stream_state *stream,
184                 struct dc_plane_state *plane_state,
185                 struct dc_state *context);
186
187 bool dc_rem_all_planes_for_stream(
188                 const struct dc *dc,
189                 struct dc_stream_state *stream,
190                 struct dc_state *context);
191
192 bool dc_add_all_planes_for_stream(
193                 const struct dc *dc,
194                 struct dc_stream_state *stream,
195                 struct dc_plane_state * const *plane_states,
196                 int plane_count,
197                 struct dc_state *context);
198
199 enum dc_status dc_validate_stream(struct dc *dc, struct dc_stream_state *stream);
200
201 /*
202  * This function takes a stream and checks if it is guaranteed to be supported.
203  * Guaranteed means that MAX_COFUNC similar streams are supported.
204  *
205  * After this call:
206  *   No hardware is programmed for call.  Only validation is done.
207  */
208
209 /*
210  * Set up streams and links associated to drive sinks
211  * The streams parameter is an absolute set of all active streams.
212  *
213  * After this call:
214  *   Phy, Encoder, Timing Generator are programmed and enabled.
215  *   New streams are enabled with blank stream; no memory read.
216  */
217 /*
218  * Enable stereo when commit_streams is not required,
219  * for example, frame alternate.
220  */
221 bool dc_enable_stereo(
222         struct dc *dc,
223         struct dc_state *context,
224         struct dc_stream_state *streams[],
225         uint8_t stream_count);
226
227
228 enum surface_update_type dc_check_update_surfaces_for_stream(
229                 struct dc *dc,
230                 struct dc_surface_update *updates,
231                 int surface_count,
232                 struct dc_stream_update *stream_update,
233                 const struct dc_stream_status *stream_status);
234
235 /**
236  * Create a new default stream for the requested sink
237  */
238 struct dc_stream_state *dc_create_stream_for_sink(struct dc_sink *dc_sink);
239
240 void dc_stream_retain(struct dc_stream_state *dc_stream);
241 void dc_stream_release(struct dc_stream_state *dc_stream);
242
243 struct dc_stream_status *dc_stream_get_status(
244         struct dc_stream_state *dc_stream);
245
246 /*******************************************************************************
247  * Cursor interfaces - To manages the cursor within a stream
248  ******************************************************************************/
249 /* TODO: Deprecated once we switch to dc_set_cursor_position */
250 bool dc_stream_set_cursor_attributes(
251         struct dc_stream_state *stream,
252         const struct dc_cursor_attributes *attributes);
253
254 bool dc_stream_set_cursor_position(
255         struct dc_stream_state *stream,
256         const struct dc_cursor_position *position);
257
258 bool dc_stream_adjust_vmin_vmax(struct dc *dc,
259                                 struct dc_stream_state **stream,
260                                 int num_streams,
261                                 int vmin,
262                                 int vmax);
263
264 bool dc_stream_get_crtc_position(struct dc *dc,
265                                  struct dc_stream_state **stream,
266                                  int num_streams,
267                                  unsigned int *v_pos,
268                                  unsigned int *nom_v_pos);
269
270 void dc_stream_set_static_screen_events(struct dc *dc,
271                                         struct dc_stream_state **stream,
272                                         int num_streams,
273                                         const struct dc_static_screen_events *events);
274
275
276 bool dc_stream_adjust_vmin_vmax(struct dc *dc,
277                                 struct dc_stream_state **stream,
278                                 int num_streams,
279                                 int vmin,
280                                 int vmax);
281
282 bool dc_stream_get_crtc_position(struct dc *dc,
283                                  struct dc_stream_state **stream,
284                                  int num_streams,
285                                  unsigned int *v_pos,
286                                  unsigned int *nom_v_pos);
287
288 void dc_stream_set_static_screen_events(struct dc *dc,
289                                         struct dc_stream_state **stream,
290                                         int num_streams,
291                                         const struct dc_static_screen_events *events);
292
293 #endif /* DC_STREAM_H_ */
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