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