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      1 /*	$NetBSD: link_hwss.h,v 1.3 2021/12/19 10:59:02 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2015 Advanced Micro Devices, Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  *
     24  * Authors: AMD
     25  *
     26  */
     27 
     28 #ifndef __DC_LINK_HWSS_H__
     29 #define __DC_LINK_HWSS_H__
     30 
     31 #include "inc/core_status.h"
     32 
     33 enum dc_status core_link_read_dpcd(
     34 	struct dc_link *link,
     35 	uint32_t address,
     36 	uint8_t *data,
     37 	uint32_t size);
     38 
     39 enum dc_status core_link_write_dpcd(
     40 	struct dc_link *link,
     41 	uint32_t address,
     42 	const uint8_t *data,
     43 	uint32_t size);
     44 
     45 struct gpio *get_hpd_gpio(struct dc_bios *dcb,
     46 		struct graphics_object_id link_id,
     47 		struct gpio_service *gpio_service);
     48 
     49 void dp_enable_link_phy(
     50 	struct dc_link *link,
     51 	enum signal_type signal,
     52 	enum clock_source_id clock_source,
     53 	const struct dc_link_settings *link_settings);
     54 
     55 void dp_receiver_power_ctrl(struct dc_link *link, bool on);
     56 bool edp_receiver_ready_T9(struct dc_link *link);
     57 bool edp_receiver_ready_T7(struct dc_link *link);
     58 
     59 void dp_disable_link_phy(struct dc_link *link, enum signal_type signal);
     60 
     61 void dp_disable_link_phy_mst(struct dc_link *link, enum signal_type signal);
     62 
     63 bool dp_set_hw_training_pattern(
     64 	struct dc_link *link,
     65 	enum dc_dp_training_pattern pattern,
     66 	uint32_t offset);
     67 
     68 void dp_set_hw_lane_settings(
     69 	struct dc_link *link,
     70 	const struct link_training_settings *link_settings,
     71 	uint32_t offset);
     72 
     73 void dp_set_hw_test_pattern(
     74 	struct dc_link *link,
     75 	enum dp_test_pattern test_pattern,
     76 	const uint8_t *custom_pattern,
     77 	uint32_t custom_pattern_size);
     78 
     79 void dp_retrain_link_dp_test(struct dc_link *link,
     80 		struct dc_link_settings *link_setting,
     81 		bool skip_video_pattern);
     82 
     83 #endif /* __DC_LINK_HWSS_H__ */
     84