drivers/gpu/drm/amd/display/dc/virtual/virtual_link_encoder.c

   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         bool hdmi,
  46         bool dual_link,
  47         uint32_t pixel_clock) {}
  48
  49 static void virtual_link_encoder_enable_dp_output(
  50         struct link_encoder *enc,
  51         const struct dc_link_settings *link_settings,
  52         enum clock_source_id clock_source) {}
  53
  54 static void virtual_link_encoder_enable_dp_mst_output(
  55         struct link_encoder *enc,
  56         const struct dc_link_settings *link_settings,
  57         enum clock_source_id clock_source) {}
  58
  59 static void virtual_link_encoder_disable_output(
  60         struct link_encoder *link_enc,
  61         enum signal_type signal) {}
  62
  63 static void virtual_link_encoder_dp_set_lane_settings(
  64         struct link_encoder *enc,
  65         const struct link_training_settings *link_settings) {}
  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
  87 static const struct link_encoder_funcs virtual_lnk_enc_funcs = {
  88         .validate_output_with_stream =
  89                 virtual_link_encoder_validate_output_with_stream,
  90         .hw_init = virtual_link_encoder_hw_init,
  91         .setup = virtual_link_encoder_setup,
  92         .enable_tmds_output = virtual_link_encoder_enable_tmds_output,
  93         .enable_dp_output = virtual_link_encoder_enable_dp_output,
  94         .enable_dp_mst_output = virtual_link_encoder_enable_dp_mst_output,
  95         .disable_output = virtual_link_encoder_disable_output,
  96         .dp_set_lane_settings = virtual_link_encoder_dp_set_lane_settings,
  97         .dp_set_phy_pattern = virtual_link_encoder_dp_set_phy_pattern,
  98         .update_mst_stream_allocation_table =
  99                 virtual_link_encoder_update_mst_stream_allocation_table,
 100         .connect_dig_be_to_fe = virtual_link_encoder_connect_dig_be_to_fe,
 101         .destroy = virtual_link_encoder_destroy
 102 };
 103
 104 bool virtual_link_encoder_construct(
 105         struct link_encoder *enc, const struct encoder_init_data *init_data)
 106 {
 107         enc->funcs = &virtual_lnk_enc_funcs;
 108         enc->ctx = init_data->ctx;
 109         enc->id = init_data->encoder;
 110
 111         enc->hpd_source = init_data->hpd_source;
 112         enc->connector = init_data->connector;
 113
 114         enc->transmitter = init_data->transmitter;
 115
 116         enc->output_signals = SIGNAL_TYPE_VIRTUAL;
 117
 118         enc->preferred_engine = ENGINE_ID_VIRTUAL;
 119
 120         return true;
 121 }
 122
 123