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/*
* Copyright 2012-15 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: AMD
*
*/
#ifndef __DC_SIGNAL_TYPES_H__
#define __DC_SIGNAL_TYPES_H__
/* Minimum pixel clock, in KHz. For TMDS signal is 25.00 MHz */
#define TMDS_MIN_PIXEL_CLOCK 25000
/* Maximum pixel clock, in KHz. For TMDS signal is 165.00 MHz */
#define TMDS_MAX_PIXEL_CLOCK 165000
enum signal_type {
SIGNAL_TYPE_NONE = 0L, /* no signal */
SIGNAL_TYPE_DVI_SINGLE_LINK = (1 << 0),
SIGNAL_TYPE_DVI_DUAL_LINK = (1 << 1),
SIGNAL_TYPE_HDMI_TYPE_A = (1 << 2),
SIGNAL_TYPE_LVDS = (1 << 3),
SIGNAL_TYPE_RGB = (1 << 4),
SIGNAL_TYPE_DISPLAY_PORT = (1 << 5),
SIGNAL_TYPE_DISPLAY_PORT_MST = (1 << 6),
SIGNAL_TYPE_EDP = (1 << 7),
SIGNAL_TYPE_VIRTUAL = (1 << 9), /* Virtual Display */
};
static inline const char *signal_type_to_string(const int type)
{
switch (type) {
case SIGNAL_TYPE_NONE:
return "No signal";
case SIGNAL_TYPE_DVI_SINGLE_LINK:
return "DVI: Single Link";
case SIGNAL_TYPE_DVI_DUAL_LINK:
return "DVI: Dual Link";
case SIGNAL_TYPE_HDMI_TYPE_A:
return "HDMI: TYPE A";
case SIGNAL_TYPE_LVDS:
return "LVDS";
case SIGNAL_TYPE_RGB:
return "RGB";
case SIGNAL_TYPE_DISPLAY_PORT:
return "Display Port";
case SIGNAL_TYPE_DISPLAY_PORT_MST:
return "Display Port: MST";
case SIGNAL_TYPE_EDP:
return "Embedded Display Port";
case SIGNAL_TYPE_VIRTUAL:
return "Virtual";
default:
return "Unknown";
}
}
/* help functions for signal types manipulation */
static inline bool dc_is_hdmi_tmds_signal(enum signal_type signal)
{
return (signal == SIGNAL_TYPE_HDMI_TYPE_A);
}
static inline bool dc_is_hdmi_signal(enum signal_type signal)
{
return (signal == SIGNAL_TYPE_HDMI_TYPE_A);
}
static inline bool dc_is_dp_sst_signal(enum signal_type signal)
{
return (signal == SIGNAL_TYPE_DISPLAY_PORT ||
signal == SIGNAL_TYPE_EDP);
}
static inline bool dc_is_dp_signal(enum signal_type signal)
{
return (signal == SIGNAL_TYPE_DISPLAY_PORT ||
signal == SIGNAL_TYPE_EDP ||
signal == SIGNAL_TYPE_DISPLAY_PORT_MST);
}
static inline bool dc_is_embedded_signal(enum signal_type signal)
{
return (signal == SIGNAL_TYPE_EDP || signal == SIGNAL_TYPE_LVDS);
}
static inline bool dc_is_lvds_signal(enum signal_type signal)
{
return (signal == SIGNAL_TYPE_LVDS);
}
static inline bool dc_is_dvi_signal(enum signal_type signal)
{
switch (signal) {
case SIGNAL_TYPE_DVI_SINGLE_LINK:
case SIGNAL_TYPE_DVI_DUAL_LINK:
return true;
break;
default:
return false;
}
}
static inline bool dc_is_dvi_single_link_signal(enum signal_type signal)
{
return (signal == SIGNAL_TYPE_DVI_SINGLE_LINK);
}
static inline bool dc_is_dual_link_signal(enum signal_type signal)
{
return (signal == SIGNAL_TYPE_DVI_DUAL_LINK);
}
static inline bool dc_is_audio_capable_signal(enum signal_type signal)
{
return (signal == SIGNAL_TYPE_DISPLAY_PORT ||
signal == SIGNAL_TYPE_DISPLAY_PORT_MST ||
dc_is_hdmi_signal(signal));
}
static inline bool dc_is_virtual_signal(enum signal_type signal)
{
return (signal == SIGNAL_TYPE_VIRTUAL);
}
#endif
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