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         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 link_training_settings *link_settings) {}
  65
  66 static void virtual_link_encoder_dp_set_phy_pattern(
  67         struct link_encoder *enc,
  68         const struct encoder_set_dp_phy_pattern_param *param) {}
  69
  70 static void virtual_link_encoder_update_mst_stream_allocation_table(
  71         struct link_encoder *enc,
  72         const struct link_mst_stream_allocation_table *table) {}
  73
  74 static void virtual_link_encoder_connect_dig_be_to_fe(
  75         struct link_encoder *enc,
  76         enum engine_id engine,
  77         bool connect) {}
  78
  79 static void virtual_link_encoder_destroy(struct link_encoder **enc)
  80 {
  81         kfree(*enc);
  82         *enc = NULL;
  83 }
  84
  85
  86 static const struct link_encoder_funcs virtual_lnk_enc_funcs = {
  87         .validate_output_with_stream =
  88                 virtual_link_encoder_validate_output_with_stream,
  89         .hw_init = virtual_link_encoder_hw_init,
  90         .setup = virtual_link_encoder_setup,
  91         .enable_tmds_output = virtual_link_encoder_enable_tmds_output,
  92         .enable_dp_output = virtual_link_encoder_enable_dp_output,
  93         .enable_dp_mst_output = virtual_link_encoder_enable_dp_mst_output,
  94         .disable_output = virtual_link_encoder_disable_output,
  95         .dp_set_lane_settings = virtual_link_encoder_dp_set_lane_settings,
  96         .dp_set_phy_pattern = virtual_link_encoder_dp_set_phy_pattern,
  97         .update_mst_stream_allocation_table =
  98                 virtual_link_encoder_update_mst_stream_allocation_table,
  99         .connect_dig_be_to_fe = virtual_link_encoder_connect_dig_be_to_fe,
 100         .destroy = virtual_link_encoder_destroy
 101 };
 102
 103 bool virtual_link_encoder_construct(
 104         struct link_encoder *enc, const struct encoder_init_data *init_data)
 105 {
 106         enc->funcs = &virtual_lnk_enc_funcs;
 107         enc->ctx = init_data->ctx;
 108         enc->id = init_data->encoder;
 109
 110         enc->hpd_source = init_data->hpd_source;
 111         enc->connector = init_data->connector;
 112
 113         enc->transmitter = init_data->transmitter;
 114
 115         enc->output_signals = SIGNAL_TYPE_VIRTUAL;
 116
 117         enc->preferred_engine = ENGINE_ID_VIRTUAL;
 118
 119         return true;
 120 }
 121
 122