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 #include "nouveau_crtc.h"
32 
33 struct nouveau_i2c_port;
34 
35 enum nouveau_underscan_type {
36 	UNDERSCAN_OFF,
37 	UNDERSCAN_ON,
38 	UNDERSCAN_AUTO,
39 };
40 
41 /* the enum values specifically defined here match nv50/nvd0 hw values, and
42  * the code relies on this
43  */
44 enum nouveau_dithering_mode {
45 	DITHERING_MODE_OFF = 0x00,
46 	DITHERING_MODE_ON = 0x01,
47 	DITHERING_MODE_DYNAMIC2X2 = 0x10 | DITHERING_MODE_ON,
48 	DITHERING_MODE_STATIC2X2 = 0x18 | DITHERING_MODE_ON,
49 	DITHERING_MODE_TEMPORAL = 0x20 | DITHERING_MODE_ON,
50 	DITHERING_MODE_AUTO
51 };
52 
53 enum nouveau_dithering_depth {
54 	DITHERING_DEPTH_6BPC = 0x00,
55 	DITHERING_DEPTH_8BPC = 0x02,
56 	DITHERING_DEPTH_AUTO
57 };
58 
59 struct nouveau_connector {
60 	struct drm_connector base;
61 	enum dcb_connector_type type;
62 	u8 index;
63 	u8 *dcb;
64 	u8 hpd;
65 
66 	int dithering_mode;
67 	int dithering_depth;
68 	int scaling_mode;
69 	enum nouveau_underscan_type underscan;
70 	u32 underscan_hborder;
71 	u32 underscan_vborder;
72 
73 	struct nouveau_encoder *detected_encoder;
74 	struct edid *edid;
75 	struct drm_display_mode *native_mode;
76 };
77 
78 static inline struct nouveau_connector *nouveau_connector(
79 						struct drm_connector *con)
80 {
81 	return container_of(con, struct nouveau_connector, base);
82 }
83 
84 static inline struct nouveau_connector *
85 nouveau_crtc_connector_get(struct nouveau_crtc *nv_crtc)
86 {
87 	struct drm_device *dev = nv_crtc->base.dev;
88 	struct drm_connector *connector;
89 	struct drm_crtc *crtc = to_drm_crtc(nv_crtc);
90 
91 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
92 		if (connector->encoder && connector->encoder->crtc == crtc)
93 			return nouveau_connector(connector);
94 	}
95 
96 	return NULL;
97 }
98 
99 struct drm_connector *
100 nouveau_connector_create(struct drm_device *, int index);
101 
102 int
103 nouveau_connector_bpp(struct drm_connector *);
104 
105 #endif /* __NOUVEAU_CONNECTOR_H__ */
106