drm/i2c/sil164.h

0001 /*
0002  * Copyright (C) 2010 Francisco Jerez.
0003  * All Rights Reserved.
0004  *
0005  * Permission is hereby granted, free of charge, to any person obtaining
0006  * a copy of this software and associated documentation files (the
0007  * "Software"), to deal in the Software without restriction, including
0008  * without limitation the rights to use, copy, modify, merge, publish,
0009  * distribute, sublicense, and/or sell copies of the Software, and to
0010  * permit persons to whom the Software is furnished to do so, subject to
0011  * the following conditions:
0012  *
0013  * The above copyright notice and this permission notice (including the
0014  * next paragraph) shall be included in all copies or substantial
0015  * portions of the Software.
0016  *
0017  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
0018  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
0019  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
0020  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
0021  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
0022  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
0023  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
0024  *
0025  */
0026
0027 #ifndef __DRM_I2C_SIL164_H__
0028 #define __DRM_I2C_SIL164_H__
0029
0030 /**
0031  * struct sil164_encoder_params
0032  *
0033  * Describes how the sil164 is connected to the GPU. It should be used
0034  * as the @params parameter of its @set_config method.
0035  *
0036  * See "http://www.siliconimage.com/docs/SiI-DS-0021-E-164.pdf".
0037  */
0038 struct sil164_encoder_params {
0039     enum {
0040         SIL164_INPUT_EDGE_FALLING = 0,
0041         SIL164_INPUT_EDGE_RISING
0042     } input_edge;
0043
0044     enum {
0045         SIL164_INPUT_WIDTH_12BIT = 0,
0046         SIL164_INPUT_WIDTH_24BIT
0047     } input_width;
0048
0049     enum {
0050         SIL164_INPUT_SINGLE_EDGE = 0,
0051         SIL164_INPUT_DUAL_EDGE
0052     } input_dual;
0053
0054     enum {
0055         SIL164_PLL_FILTER_ON = 0,
0056         SIL164_PLL_FILTER_OFF,
0057     } pll_filter;
0058
0059     int input_skew; /** < Allowed range [-4, 3], use 0 for no de-skew. */
0060     int duallink_skew; /** < Allowed range [-4, 3]. */
0061 };
0062
0063 #endif