1 /* 2 * Copyright 2012-15 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 #include "dm_services.h" 27 #include "dm_services_types.h" 28 29 #include "virtual_link_encoder.h" 30 31 static bool virtual_link_encoder_validate_output_with_stream( 32 struct link_encoder *enc, 33 const struct dc_stream_state *stream) { return true; } 34 35 static void virtual_link_encoder_hw_init(struct link_encoder *enc) {} 36 37 static void virtual_link_encoder_setup( 38 struct link_encoder *enc, 39 enum signal_type signal) {} 40 41 static void virtual_link_encoder_enable_tmds_output( 42 struct link_encoder *enc, 43 enum clock_source_id clock_source, 44 enum dc_color_depth color_depth, 45 enum signal_type signal, 46 uint32_t pixel_clock) {} 47 48 static void virtual_link_encoder_enable_dp_output( 49 struct link_encoder *enc, 50 const struct dc_link_settings *link_settings, 51 enum clock_source_id clock_source) {} 52 53 static void virtual_link_encoder_enable_dp_mst_output( 54 struct link_encoder *enc, 55 const struct dc_link_settings *link_settings, 56 enum clock_source_id clock_source) {} 57 58 static void virtual_link_encoder_disable_output( 59 struct link_encoder *link_enc, 60 enum signal_type signal) {} 61 62 static void virtual_link_encoder_dp_set_lane_settings( 63 struct link_encoder *enc, 64 const struct dc_link_settings *link_settings, 65 const struct dc_lane_settings lane_settings[LANE_COUNT_DP_MAX]) {} 66 67 static void virtual_link_encoder_dp_set_phy_pattern( 68 struct link_encoder *enc, 69 const struct encoder_set_dp_phy_pattern_param *param) {} 70 71 static void virtual_link_encoder_update_mst_stream_allocation_table( 72 struct link_encoder *enc, 73 const struct link_mst_stream_allocation_table *table) {} 74 75 static void virtual_link_encoder_connect_dig_be_to_fe( 76 struct link_encoder *enc, 77 enum engine_id engine, 78 bool connect) {} 79 80 static void virtual_link_encoder_destroy(struct link_encoder **enc) 81 { 82 kfree(*enc); 83 *enc = NULL; 84 } 85 86 static void virtual_link_encoder_get_max_link_cap(struct link_encoder *enc, 87 struct dc_link_settings *link_settings) 88 { 89 /* Set Default link settings */ 90 struct dc_link_settings max_link_cap = {LANE_COUNT_FOUR, LINK_RATE_HIGH, 91 LINK_SPREAD_05_DOWNSPREAD_30KHZ, false, 0}; 92 *link_settings = max_link_cap; 93 } 94 95 static const struct link_encoder_funcs virtual_lnk_enc_funcs = { 96 .validate_output_with_stream = 97 virtual_link_encoder_validate_output_with_stream, 98 .hw_init = virtual_link_encoder_hw_init, 99 .setup = virtual_link_encoder_setup, 100 .enable_tmds_output = virtual_link_encoder_enable_tmds_output, 101 .enable_dp_output = virtual_link_encoder_enable_dp_output, 102 .enable_dp_mst_output = virtual_link_encoder_enable_dp_mst_output, 103 .disable_output = virtual_link_encoder_disable_output, 104 .get_max_link_cap = virtual_link_encoder_get_max_link_cap, 105 .dp_set_lane_settings = virtual_link_encoder_dp_set_lane_settings, 106 .dp_set_phy_pattern = virtual_link_encoder_dp_set_phy_pattern, 107 .update_mst_stream_allocation_table = 108 virtual_link_encoder_update_mst_stream_allocation_table, 109 .connect_dig_be_to_fe = virtual_link_encoder_connect_dig_be_to_fe, 110 .destroy = virtual_link_encoder_destroy 111 }; 112 113 bool virtual_link_encoder_construct( 114 struct link_encoder *enc, const struct encoder_init_data *init_data) 115 { 116 enc->funcs = &virtual_lnk_enc_funcs; 117 enc->ctx = init_data->ctx; 118 enc->id = init_data->encoder; 119 120 enc->hpd_source = init_data->hpd_source; 121 enc->connector = init_data->connector; 122 123 enc->transmitter = init_data->transmitter; 124 125 enc->output_signals = SIGNAL_TYPE_VIRTUAL; 126 127 enc->preferred_engine = ENGINE_ID_VIRTUAL; 128 129 return true; 130 } 131 132 133