xref: /linux/drivers/gpu/drm/nouveau/nouveau_connector.h (revision f49f4ab95c301dbccad0efe85296d908b8ae7ad4)
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 <drm/drm_edid.h>
31 
32 struct nouveau_i2c_port;
33 
34 enum nouveau_underscan_type {
35 	UNDERSCAN_OFF,
36 	UNDERSCAN_ON,
37 	UNDERSCAN_AUTO,
38 };
39 
40 /* the enum values specifically defined here match nv50/nvd0 hw values, and
41  * the code relies on this
42  */
43 enum nouveau_dithering_mode {
44 	DITHERING_MODE_OFF = 0x00,
45 	DITHERING_MODE_ON = 0x01,
46 	DITHERING_MODE_DYNAMIC2X2 = 0x10 | DITHERING_MODE_ON,
47 	DITHERING_MODE_STATIC2X2 = 0x18 | DITHERING_MODE_ON,
48 	DITHERING_MODE_TEMPORAL = 0x20 | DITHERING_MODE_ON,
49 	DITHERING_MODE_AUTO
50 };
51 
52 enum nouveau_dithering_depth {
53 	DITHERING_DEPTH_6BPC = 0x00,
54 	DITHERING_DEPTH_8BPC = 0x02,
55 	DITHERING_DEPTH_AUTO
56 };
57 
58 struct nouveau_connector {
59 	struct drm_connector base;
60 	enum dcb_connector_type type;
61 	u8 index;
62 	u8 *dcb;
63 	u8 hpd;
64 
65 	int dithering_mode;
66 	int dithering_depth;
67 	int scaling_mode;
68 	enum nouveau_underscan_type underscan;
69 	u32 underscan_hborder;
70 	u32 underscan_vborder;
71 
72 	struct nouveau_encoder *detected_encoder;
73 	struct edid *edid;
74 	struct drm_display_mode *native_mode;
75 };
76 
77 static inline struct nouveau_connector *nouveau_connector(
78 						struct drm_connector *con)
79 {
80 	return container_of(con, struct nouveau_connector, base);
81 }
82 
83 struct drm_connector *
84 nouveau_connector_create(struct drm_device *, int index);
85 
86 int
87 nouveau_connector_bpp(struct drm_connector *);
88 
89 #endif /* __NOUVEAU_CONNECTOR_H__ */
90