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 <drm/drm_dp_helper.h>
32 #include "nouveau_crtc.h"
33 
34 #include <core/event.h>
35 
36 #include <subdev/bios.h>
37 
38 struct nouveau_i2c_port;
39 
40 enum nouveau_underscan_type {
41 	UNDERSCAN_OFF,
42 	UNDERSCAN_ON,
43 	UNDERSCAN_AUTO,
44 };
45 
46 /* the enum values specifically defined here match nv50/nvd0 hw values, and
47  * the code relies on this
48  */
49 enum nouveau_dithering_mode {
50 	DITHERING_MODE_OFF = 0x00,
51 	DITHERING_MODE_ON = 0x01,
52 	DITHERING_MODE_DYNAMIC2X2 = 0x10 | DITHERING_MODE_ON,
53 	DITHERING_MODE_STATIC2X2 = 0x18 | DITHERING_MODE_ON,
54 	DITHERING_MODE_TEMPORAL = 0x20 | DITHERING_MODE_ON,
55 	DITHERING_MODE_AUTO
56 };
57 
58 enum nouveau_dithering_depth {
59 	DITHERING_DEPTH_6BPC = 0x00,
60 	DITHERING_DEPTH_8BPC = 0x02,
61 	DITHERING_DEPTH_AUTO
62 };
63 
64 struct nouveau_connector {
65 	struct drm_connector base;
66 	enum dcb_connector_type type;
67 	u8 index;
68 	u8 *dcb;
69 
70 	struct nouveau_eventh *hpd;
71 	u32 status;
72 	struct work_struct work;
73 
74 	struct drm_dp_aux aux;
75 
76 	int dithering_mode;
77 	int dithering_depth;
78 	int scaling_mode;
79 	enum nouveau_underscan_type underscan;
80 	u32 underscan_hborder;
81 	u32 underscan_vborder;
82 
83 	struct nouveau_encoder *detected_encoder;
84 	struct edid *edid;
85 	struct drm_display_mode *native_mode;
86 };
87 
88 static inline struct nouveau_connector *nouveau_connector(
89 						struct drm_connector *con)
90 {
91 	return container_of(con, struct nouveau_connector, base);
92 }
93 
94 static inline struct nouveau_connector *
95 nouveau_crtc_connector_get(struct nouveau_crtc *nv_crtc)
96 {
97 	struct drm_device *dev = nv_crtc->base.dev;
98 	struct drm_connector *connector;
99 	struct drm_crtc *crtc = to_drm_crtc(nv_crtc);
100 
101 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
102 		if (connector->encoder && connector->encoder->crtc == crtc)
103 			return nouveau_connector(connector);
104 	}
105 
106 	return NULL;
107 }
108 
109 struct drm_connector *
110 nouveau_connector_create(struct drm_device *, int index);
111 
112 #endif /* __NOUVEAU_CONNECTOR_H__ */
113