1 /*
2  * Copyright (C) 2009 Francisco Jerez.
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 __DRM_I2C_CH7006_H__
28 #define __DRM_I2C_CH7006_H__
29 
30 /**
31  * struct ch7006_encoder_params
32  *
33  * Describes how the ch7006 is wired up with the GPU. It should be
34  * used as the @params parameter of its @set_config method.
35  *
36  * See "http://www.chrontel.com/pdf/7006.pdf" for their precise
37  * meaning.
38  */
39 struct ch7006_encoder_params {
40 	/* private: FIXME: document the members */
41 	enum {
42 		CH7006_FORMAT_RGB16 = 0,
43 		CH7006_FORMAT_YCrCb24m16,
44 		CH7006_FORMAT_RGB24m16,
45 		CH7006_FORMAT_RGB15,
46 		CH7006_FORMAT_RGB24m12C,
47 		CH7006_FORMAT_RGB24m12I,
48 		CH7006_FORMAT_RGB24m8,
49 		CH7006_FORMAT_RGB16m8,
50 		CH7006_FORMAT_RGB15m8,
51 		CH7006_FORMAT_YCrCb24m8,
52 	} input_format;
53 
54 	enum {
55 		CH7006_CLOCK_SLAVE = 0,
56 		CH7006_CLOCK_MASTER,
57 	} clock_mode;
58 
59 	enum {
60 		CH7006_CLOCK_EDGE_NEG = 0,
61 		CH7006_CLOCK_EDGE_POS,
62 	} clock_edge;
63 
64 	int xcm, pcm;
65 
66 	enum {
67 		CH7006_SYNC_SLAVE = 0,
68 		CH7006_SYNC_MASTER,
69 	} sync_direction;
70 
71 	enum {
72 		CH7006_SYNC_SEPARATED = 0,
73 		CH7006_SYNC_EMBEDDED,
74 	} sync_encoding;
75 
76 	enum {
77 		CH7006_POUT_1_8V = 0,
78 		CH7006_POUT_3_3V,
79 	} pout_level;
80 
81 	enum {
82 		CH7006_ACTIVE_HSYNC = 0,
83 		CH7006_ACTIVE_DSTART,
84 	} active_detect;
85 };
86 
87 #endif
88