1 /*
2  * Copyright (C) 2008 Maarten Maathuis.
3  * All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining
6  * a copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sublicense, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * The above copyright notice and this permission notice (including the
14  * next paragraph) shall be included in all copies or substantial
15  * portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24  *
25  */
26 
27 #ifndef __NOUVEAU_CONNECTOR_H__
28 #define __NOUVEAU_CONNECTOR_H__
29 
30 #include <nvif/notify.h>
31 
32 #include <drm/drm_edid.h>
33 #include <drm/drm_encoder.h>
34 #include <drm/drm_dp_helper.h>
35 #include <drm/drm_util.h>
36 
37 #include "nouveau_crtc.h"
38 #include "nouveau_encoder.h"
39 
40 struct nvkm_i2c_port;
41 struct dcb_output;
42 
43 #ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
44 struct nouveau_backlight;
45 #endif
46 
47 struct nouveau_connector {
48 	struct drm_connector base;
49 	enum dcb_connector_type type;
50 	u8 index;
51 	u8 *dcb;
52 
53 	struct nvif_notify hpd;
54 
55 	struct drm_dp_aux aux;
56 
57 	int dithering_mode;
58 	int scaling_mode;
59 
60 	struct nouveau_encoder *detected_encoder;
61 	struct edid *edid;
62 	struct drm_display_mode *native_mode;
63 #ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
64 	struct nouveau_backlight *backlight;
65 #endif
66 };
67 
68 static inline struct nouveau_connector *nouveau_connector(
69 						struct drm_connector *con)
70 {
71 	return container_of(con, struct nouveau_connector, base);
72 }
73 
74 static inline bool
75 nouveau_connector_is_mst(struct drm_connector *connector)
76 {
77 	const struct nouveau_encoder *nv_encoder;
78 	const struct drm_encoder *encoder;
79 
80 	if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
81 		return false;
82 
83 	nv_encoder = find_encoder(connector, DCB_OUTPUT_ANY);
84 	if (!nv_encoder)
85 		return false;
86 
87 	encoder = &nv_encoder->base.base;
88 	return encoder->encoder_type == DRM_MODE_ENCODER_DPMST;
89 }
90 
91 #define nouveau_for_each_non_mst_connector_iter(connector, iter) \
92 	drm_for_each_connector_iter(connector, iter) \
93 		for_each_if(!nouveau_connector_is_mst(connector))
94 
95 static inline struct nouveau_connector *
96 nouveau_crtc_connector_get(struct nouveau_crtc *nv_crtc)
97 {
98 	struct drm_device *dev = nv_crtc->base.dev;
99 	struct drm_connector *connector;
100 	struct drm_connector_list_iter conn_iter;
101 	struct nouveau_connector *nv_connector = NULL;
102 	struct drm_crtc *crtc = to_drm_crtc(nv_crtc);
103 
104 	drm_connector_list_iter_begin(dev, &conn_iter);
105 	nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
106 		if (connector->encoder && connector->encoder->crtc == crtc) {
107 			nv_connector = nouveau_connector(connector);
108 			break;
109 		}
110 	}
111 	drm_connector_list_iter_end(&conn_iter);
112 
113 	return nv_connector;
114 }
115 
116 struct drm_connector *
117 nouveau_connector_create(struct drm_device *, const struct dcb_output *);
118 
119 extern int nouveau_tv_disable;
120 extern int nouveau_ignorelid;
121 extern int nouveau_duallink;
122 extern int nouveau_hdmimhz;
123 
124 #include <drm/drm_crtc.h>
125 #define nouveau_conn_atom(p)                                                   \
126 	container_of((p), struct nouveau_conn_atom, state)
127 
128 struct nouveau_conn_atom {
129 	struct drm_connector_state state;
130 
131 	struct {
132 		/* The enum values specifically defined here match nv50/gf119
133 		 * hw values, and the code relies on this.
134 		 */
135 		enum {
136 			DITHERING_MODE_OFF = 0x00,
137 			DITHERING_MODE_ON = 0x01,
138 			DITHERING_MODE_DYNAMIC2X2 = 0x10 | DITHERING_MODE_ON,
139 			DITHERING_MODE_STATIC2X2 = 0x18 | DITHERING_MODE_ON,
140 			DITHERING_MODE_TEMPORAL = 0x20 | DITHERING_MODE_ON,
141 			DITHERING_MODE_AUTO
142 		} mode;
143 		enum {
144 			DITHERING_DEPTH_6BPC = 0x00,
145 			DITHERING_DEPTH_8BPC = 0x02,
146 			DITHERING_DEPTH_AUTO
147 		} depth;
148 	} dither;
149 
150 	struct {
151 		int mode;	/* DRM_MODE_SCALE_* */
152 		struct {
153 			enum {
154 				UNDERSCAN_OFF,
155 				UNDERSCAN_ON,
156 				UNDERSCAN_AUTO,
157 			} mode;
158 			u32 hborder;
159 			u32 vborder;
160 		} underscan;
161 		bool full;
162 	} scaler;
163 
164 	struct {
165 		int color_vibrance;
166 		int vibrant_hue;
167 	} procamp;
168 
169 	union {
170 		struct {
171 			bool dither:1;
172 			bool scaler:1;
173 			bool procamp:1;
174 		};
175 		u8 mask;
176 	} set;
177 };
178 
179 void nouveau_conn_attach_properties(struct drm_connector *);
180 void nouveau_conn_reset(struct drm_connector *);
181 struct drm_connector_state *
182 nouveau_conn_atomic_duplicate_state(struct drm_connector *);
183 void nouveau_conn_atomic_destroy_state(struct drm_connector *,
184 				       struct drm_connector_state *);
185 int nouveau_conn_atomic_set_property(struct drm_connector *,
186 				     struct drm_connector_state *,
187 				     struct drm_property *, u64);
188 int nouveau_conn_atomic_get_property(struct drm_connector *,
189 				     const struct drm_connector_state *,
190 				     struct drm_property *, u64 *);
191 struct drm_display_mode *nouveau_conn_native_mode(struct drm_connector *);
192 
193 #ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
194 extern int nouveau_backlight_init(struct drm_connector *);
195 extern void nouveau_backlight_fini(struct drm_connector *);
196 extern void nouveau_backlight_ctor(void);
197 extern void nouveau_backlight_dtor(void);
198 #else
199 static inline int
200 nouveau_backlight_init(struct drm_connector *connector)
201 {
202 	return 0;
203 }
204 
205 static inline void
206 nouveau_backlight_fini(struct drm_connector *connector) {
207 }
208 
209 static inline void
210 nouveau_backlight_ctor(void) {
211 }
212 
213 static inline void
214 nouveau_backlight_dtor(void) {
215 }
216 #endif
217 
218 #endif /* __NOUVEAU_CONNECTOR_H__ */
219