drivers/gpu/drm/amd/display/dc/virtual/virtual_stream_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 "virtual_stream_encoder.h"
  28
  29 static void virtual_stream_encoder_dp_set_stream_attribute(
  30         struct stream_encoder *enc,
  31         struct dc_crtc_timing *crtc_timing,
  32         enum dc_color_space output_color_space,
  33         bool use_vsc_sdp_for_colorimetry,
  34         uint32_t enable_sdp_splitting) {}
  35
  36 static void virtual_stream_encoder_hdmi_set_stream_attribute(
  37         struct stream_encoder *enc,
  38         struct dc_crtc_timing *crtc_timing,
  39         int actual_pix_clk_khz,
  40         bool enable_audio) {}
  41
  42 static void virtual_stream_encoder_dvi_set_stream_attribute(
  43         struct stream_encoder *enc,
  44         struct dc_crtc_timing *crtc_timing,
  45         bool is_dual_link) {}
  46
  47 static void virtual_stream_encoder_set_throttled_vcp_size(
  48         struct stream_encoder *enc,
  49         struct fixed31_32 avg_time_slots_per_mtp)
  50 {}
  51
  52 static void virtual_stream_encoder_update_hdmi_info_packets(
  53         struct stream_encoder *enc,
  54         const struct encoder_info_frame *info_frame) {}
  55
  56 static void virtual_stream_encoder_stop_hdmi_info_packets(
  57         struct stream_encoder *enc) {}
  58
  59 static void virtual_stream_encoder_set_avmute(
  60         struct stream_encoder *enc,
  61         bool enable) {}
  62 static void virtual_stream_encoder_update_dp_info_packets(
  63         struct stream_encoder *enc,
  64         const struct encoder_info_frame *info_frame) {}
  65
  66 static void virtual_stream_encoder_stop_dp_info_packets(
  67         struct stream_encoder *enc) {}
  68
  69 static void virtual_stream_encoder_dp_blank(
  70         struct dc_link *link,
  71         struct stream_encoder *enc) {}
  72
  73 static void virtual_stream_encoder_dp_unblank(
  74         struct dc_link *link,
  75         struct stream_encoder *enc,
  76         const struct encoder_unblank_param *param) {}
  77
  78 static void virtual_audio_mute_control(
  79         struct stream_encoder *enc,
  80         bool mute) {}
  81
  82 static void virtual_stream_encoder_reset_hdmi_stream_attribute(
  83                 struct stream_encoder *enc)
  84 {}
  85
  86 static void virtual_enc_dp_set_odm_combine(
  87         struct stream_encoder *enc,
  88         bool odm_combine)
  89 {}
  90
  91 static void virtual_dig_connect_to_otg(
  92                 struct stream_encoder *enc,
  93                 int tg_inst)
  94 {}
  95
  96 static void virtual_setup_stereo_sync(
  97                         struct stream_encoder *enc,
  98                         int tg_inst,
  99                         bool enable)
 100 {}
 101
 102 static void virtual_stream_encoder_set_dsc_pps_info_packet(
 103                 struct stream_encoder *enc,
 104                 bool enable,
 105                 uint8_t *dsc_packed_pps,
 106                 bool immediate_update)
 107 {}
 108
 109 static const struct stream_encoder_funcs virtual_str_enc_funcs = {
 110         .dp_set_odm_combine =
 111                 virtual_enc_dp_set_odm_combine,
 112         .dp_set_stream_attribute =
 113                 virtual_stream_encoder_dp_set_stream_attribute,
 114         .hdmi_set_stream_attribute =
 115                 virtual_stream_encoder_hdmi_set_stream_attribute,
 116         .dvi_set_stream_attribute =
 117                 virtual_stream_encoder_dvi_set_stream_attribute,
 118         .set_throttled_vcp_size =
 119                 virtual_stream_encoder_set_throttled_vcp_size,
 120         .update_hdmi_info_packets =
 121                 virtual_stream_encoder_update_hdmi_info_packets,
 122         .stop_hdmi_info_packets =
 123                 virtual_stream_encoder_stop_hdmi_info_packets,
 124         .update_dp_info_packets =
 125                 virtual_stream_encoder_update_dp_info_packets,
 126         .stop_dp_info_packets =
 127                 virtual_stream_encoder_stop_dp_info_packets,
 128         .dp_blank =
 129                 virtual_stream_encoder_dp_blank,
 130         .dp_unblank =
 131                 virtual_stream_encoder_dp_unblank,
 132
 133         .audio_mute_control = virtual_audio_mute_control,
 134         .set_avmute = virtual_stream_encoder_set_avmute,
 135         .hdmi_reset_stream_attribute = virtual_stream_encoder_reset_hdmi_stream_attribute,
 136         .dig_connect_to_otg = virtual_dig_connect_to_otg,
 137         .setup_stereo_sync = virtual_setup_stereo_sync,
 138         .dp_set_dsc_pps_info_packet = virtual_stream_encoder_set_dsc_pps_info_packet,
 139 };
 140
 141 bool virtual_stream_encoder_construct(
 142         struct stream_encoder *enc,
 143         struct dc_context *ctx,
 144         struct dc_bios *bp)
 145 {
 146         if (!enc)
 147                 return false;
 148         if (!bp)
 149                 return false;
 150
 151         enc->funcs = &virtual_str_enc_funcs;
 152         enc->ctx = ctx;
 153         enc->id = ENGINE_ID_VIRTUAL;
 154         enc->bp = bp;
 155
 156         return true;
 157 }
 158
 159 struct stream_encoder *virtual_stream_encoder_create(
 160         struct dc_context *ctx, struct dc_bios *bp)
 161 {
 162         struct stream_encoder *enc = kzalloc(sizeof(*enc), GFP_KERNEL);
 163
 164         if (!enc)
 165                 return NULL;
 166
 167         if (virtual_stream_encoder_construct(enc, ctx, bp))
 168                 return enc;
 169
 170         BREAK_TO_DEBUGGER();
 171         kfree(enc);
 172         return NULL;
 173 }
 174