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linux/drivers/gpu/drm/amd/display/dc/link/link_detection.h
Wenjing Liu 98ce7d32e2 drm/amd/display: convert link.h functions to function pointer style
[Why & How]
All dc subcomponents should call another dc component via function pointers
stored in a component structure. This is part of dc coding convention since
the beginning. The reason behind this is to improve encapsulation and
polymorphism. The function contract is extracted into a single link service
structure defined in link.h header file and implemented only in link_factory.c instead
of spreading across multiple files in link component file structure.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-14 15:35:03 -04:00

43 lines
1.9 KiB
C

/*
* Copyright 2023 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_LINK_DETECTION_H__
#define __DC_LINK_DETECTION_H__
#include "link.h"
bool link_detect(struct dc_link *link, enum dc_detect_reason reason);
bool link_detect_connection_type(struct dc_link *link,
enum dc_connection_type *type);
struct dc_sink *link_add_remote_sink(
struct dc_link *link,
const uint8_t *edid,
int len,
struct dc_sink_init_data *init_data);
void link_remove_remote_sink(struct dc_link *link, struct dc_sink *sink);
bool link_reset_cur_dp_mst_topology(struct dc_link *link);
const struct dc_link_status *link_get_status(const struct dc_link *link);
bool link_is_hdcp14(struct dc_link *link, enum signal_type signal);
bool link_is_hdcp22(struct dc_link *link, enum signal_type signal);
void link_clear_dprx_states(struct dc_link *link);
#endif /* __DC_LINK_DETECTION_H__ */