1 /* 2 * Copyright 2015 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: AMD 23 * 24 */ 25 26 #ifndef __DC_LINK_HWSS_H__ 27 #define __DC_LINK_HWSS_H__ 28 29 #include "inc/core_status.h" 30 31 enum dc_status core_link_read_dpcd( 32 struct dc_link *link, 33 uint32_t address, 34 uint8_t *data, 35 uint32_t size); 36 37 enum dc_status core_link_write_dpcd( 38 struct dc_link *link, 39 uint32_t address, 40 const uint8_t *data, 41 uint32_t size); 42 43 struct gpio *get_hpd_gpio(struct dc_bios *dcb, 44 struct graphics_object_id link_id, 45 struct gpio_service *gpio_service); 46 47 void dp_enable_link_phy( 48 struct dc_link *link, 49 enum signal_type signal, 50 enum clock_source_id clock_source, 51 const struct dc_link_settings *link_settings); 52 53 void dp_receiver_power_ctrl(struct dc_link *link, bool on); 54 void edp_add_delay_for_T9(struct dc_link *link); 55 bool edp_receiver_ready_T9(struct dc_link *link); 56 bool edp_receiver_ready_T7(struct dc_link *link); 57 58 void dp_disable_link_phy(struct dc_link *link, enum signal_type signal); 59 60 void dp_disable_link_phy_mst(struct dc_link *link, enum signal_type signal); 61 62 bool dp_set_hw_training_pattern( 63 struct dc_link *link, 64 enum dc_dp_training_pattern pattern, 65 uint32_t offset); 66 67 void dp_set_hw_lane_settings( 68 struct dc_link *link, 69 const struct link_training_settings *link_settings, 70 uint32_t offset); 71 72 void dp_set_hw_test_pattern( 73 struct dc_link *link, 74 enum dp_test_pattern test_pattern, 75 uint8_t *custom_pattern, 76 uint32_t custom_pattern_size); 77 78 void dp_retrain_link_dp_test(struct dc_link *link, 79 struct dc_link_settings *link_setting, 80 bool skip_video_pattern); 81 82 #endif /* __DC_LINK_HWSS_H__ */ 83