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_dp_helper.h>
34 #include "nouveau_crtc.h"
35 
36 struct nvkm_i2c_port;
37 
38 enum nouveau_underscan_type {
39 	UNDERSCAN_OFF,
40 	UNDERSCAN_ON,
41 	UNDERSCAN_AUTO,
42 };
43 
44 /* the enum values specifically defined here match nv50/nvd0 hw values, and
45  * the code relies on this
46  */
47 enum nouveau_dithering_mode {
48 	DITHERING_MODE_OFF = 0x00,
49 	DITHERING_MODE_ON = 0x01,
50 	DITHERING_MODE_DYNAMIC2X2 = 0x10 | DITHERING_MODE_ON,
51 	DITHERING_MODE_STATIC2X2 = 0x18 | DITHERING_MODE_ON,
52 	DITHERING_MODE_TEMPORAL = 0x20 | DITHERING_MODE_ON,
53 	DITHERING_MODE_AUTO
54 };
55 
56 enum nouveau_dithering_depth {
57 	DITHERING_DEPTH_6BPC = 0x00,
58 	DITHERING_DEPTH_8BPC = 0x02,
59 	DITHERING_DEPTH_AUTO
60 };
61 
62 struct nouveau_connector {
63 	struct drm_connector base;
64 	enum dcb_connector_type type;
65 	u8 index;
66 	u8 *dcb;
67 
68 	struct nvif_notify hpd;
69 
70 	struct drm_dp_aux aux;
71 
72 	int dithering_mode;
73 	int dithering_depth;
74 	int scaling_mode;
75 	bool scaling_full;
76 	enum nouveau_underscan_type underscan;
77 	u32 underscan_hborder;
78 	u32 underscan_vborder;
79 
80 	struct nouveau_encoder *detected_encoder;
81 	struct edid *edid;
82 	struct drm_display_mode *native_mode;
83 };
84 
85 static inline struct nouveau_connector *nouveau_connector(
86 						struct drm_connector *con)
87 {
88 	return container_of(con, struct nouveau_connector, base);
89 }
90 
91 static inline struct nouveau_connector *
92 nouveau_crtc_connector_get(struct nouveau_crtc *nv_crtc)
93 {
94 	struct drm_device *dev = nv_crtc->base.dev;
95 	struct drm_connector *connector;
96 	struct drm_crtc *crtc = to_drm_crtc(nv_crtc);
97 
98 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
99 		if (connector->encoder && connector->encoder->crtc == crtc)
100 			return nouveau_connector(connector);
101 	}
102 
103 	return NULL;
104 }
105 
106 struct drm_connector *
107 nouveau_connector_create(struct drm_device *, int index);
108 
109 extern int nouveau_tv_disable;
110 extern int nouveau_ignorelid;
111 extern int nouveau_duallink;
112 
113 #endif /* __NOUVEAU_CONNECTOR_H__ */
114