diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/basics/signal_types.c')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/basics/signal_types.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/basics/signal_types.c b/drivers/gpu/drm/amd/display/dc/basics/signal_types.c new file mode 100644 index 000000000000..44447e07803a --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/basics/signal_types.c @@ -0,0 +1,116 @@ +/* + * 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 + * + */ + +#include "dm_services.h" +#include "include/signal_types.h" + +bool dc_is_hdmi_signal(enum signal_type signal) +{ + return (signal == SIGNAL_TYPE_HDMI_TYPE_A); +} + +bool dc_is_dp_sst_signal(enum signal_type signal) +{ + return (signal == SIGNAL_TYPE_DISPLAY_PORT || + signal == SIGNAL_TYPE_EDP); +} + +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); +} + +bool dc_is_dp_external_signal(enum signal_type signal) +{ + return (signal == SIGNAL_TYPE_DISPLAY_PORT || + signal == SIGNAL_TYPE_DISPLAY_PORT_MST); +} + +bool dc_is_analog_signal(enum signal_type signal) +{ + switch (signal) { + case SIGNAL_TYPE_RGB: + return true; + break; + default: + return false; + } +} + +bool dc_is_embedded_signal(enum signal_type signal) +{ + return (signal == SIGNAL_TYPE_EDP || signal == SIGNAL_TYPE_LVDS); +} + +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; + } +} + +bool dc_is_dvi_single_link_signal(enum signal_type signal) +{ + return (signal == SIGNAL_TYPE_DVI_SINGLE_LINK); +} + +bool dc_is_dual_link_signal(enum signal_type signal) +{ + return (signal == SIGNAL_TYPE_DVI_DUAL_LINK); +} + +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) || + signal == SIGNAL_TYPE_WIRELESS); +} + +/* + * @brief + * Returns whether the signal is compatible + * with other digital encoder signal types. + * This is true for DVI, LVDS, and HDMI signal types. + */ +bool dc_is_digital_encoder_compatible_signal(enum signal_type signal) +{ + switch (signal) { + case SIGNAL_TYPE_DVI_SINGLE_LINK: + case SIGNAL_TYPE_DVI_DUAL_LINK: + case SIGNAL_TYPE_HDMI_TYPE_A: + case SIGNAL_TYPE_LVDS: + return true; + default: + return false; + } +} |