LXR linux/drivers/gpu/drm/amd/display/dc/virtual/virtual_link

   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
  31static bool virtual_link_encoder_validate_output_with_stream(
  32        struct link_encoder *enc,
  33        const struct dc_stream_state *stream) { return true; }
  34
  35static void virtual_link_encoder_hw_init(struct link_encoder *enc) {}
  36
  37static void virtual_link_encoder_setup(
  38        struct link_encoder *enc,
  39        enum signal_type signal) {}
  40
  41static 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
  48static 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
  53static 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
  58static void virtual_link_encoder_disable_output(
  59        struct link_encoder *link_enc,
  60        enum signal_type signal) {}
  61
  62static void virtual_link_encoder_dp_set_lane_settings(
  63        struct link_encoder *enc,
  64        const struct link_training_settings *link_settings) {}
  65
  66static void virtual_link_encoder_dp_set_phy_pattern(
  67        struct link_encoder *enc,
  68        const struct encoder_set_dp_phy_pattern_param *param) {}
  69
  70static void virtual_link_encoder_update_mst_stream_allocation_table(
  71        struct link_encoder *enc,
  72        const struct link_mst_stream_allocation_table *table) {}
  73
  74static void virtual_link_encoder_connect_dig_be_to_fe(
  75        struct link_encoder *enc,
  76        enum engine_id engine,
  77        bool connect) {}
  78
  79static void virtual_link_encoder_destroy(struct link_encoder **enc)
  80{
  81        kfree(*enc);
  82        *enc = NULL;
  83}
  84
  85
  86static 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
 103bool 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
 123