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

   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 <linux/slab.h>
  27
  28#include "dm_services.h"
  29#include "virtual_stream_encoder.h"
  30
  31static void virtual_stream_encoder_dp_set_stream_attribute(
  32        struct stream_encoder *enc,
  33        struct dc_crtc_timing *crtc_timing,
  34        enum dc_color_space output_color_space,
  35        bool use_vsc_sdp_for_colorimetry,
  36        uint32_t enable_sdp_splitting) {}
  37
  38static void virtual_stream_encoder_hdmi_set_stream_attribute(
  39        struct stream_encoder *enc,
  40        struct dc_crtc_timing *crtc_timing,
  41        int actual_pix_clk_khz,
  42        bool enable_audio) {}
  43
  44static void virtual_stream_encoder_dvi_set_stream_attribute(
  45        struct stream_encoder *enc,
  46        struct dc_crtc_timing *crtc_timing,
  47        bool is_dual_link) {}
  48
  49static void virtual_stream_encoder_set_throttled_vcp_size(
  50        struct stream_encoder *enc,
  51        struct fixed31_32 avg_time_slots_per_mtp)
  52{}
  53
  54static void virtual_stream_encoder_update_hdmi_info_packets(
  55        struct stream_encoder *enc,
  56        const struct encoder_info_frame *info_frame) {}
  57
  58static void virtual_stream_encoder_stop_hdmi_info_packets(
  59        struct stream_encoder *enc) {}
  60
  61static void virtual_stream_encoder_set_avmute(
  62        struct stream_encoder *enc,
  63        bool enable) {}
  64static void virtual_stream_encoder_update_dp_info_packets(
  65        struct stream_encoder *enc,
  66        const struct encoder_info_frame *info_frame) {}
  67
  68static void virtual_stream_encoder_stop_dp_info_packets(
  69        struct stream_encoder *enc) {}
  70
  71static void virtual_stream_encoder_dp_blank(
  72        struct dc_link *link,
  73        struct stream_encoder *enc) {}
  74
  75static void virtual_stream_encoder_dp_unblank(
  76        struct dc_link *link,
  77        struct stream_encoder *enc,
  78        const struct encoder_unblank_param *param) {}
  79
  80static void virtual_audio_mute_control(
  81        struct stream_encoder *enc,
  82        bool mute) {}
  83
  84static void virtual_stream_encoder_reset_hdmi_stream_attribute(
  85                struct stream_encoder *enc)
  86{}
  87
  88static void virtual_enc_dp_set_odm_combine(
  89        struct stream_encoder *enc,
  90        bool odm_combine)
  91{}
  92
  93static void virtual_dig_connect_to_otg(
  94                struct stream_encoder *enc,
  95                int tg_inst)
  96{}
  97
  98static void virtual_setup_stereo_sync(
  99                        struct stream_encoder *enc,
 100                        int tg_inst,
 101                        bool enable)
 102{}
 103
 104static void virtual_stream_encoder_set_dsc_pps_info_packet(
 105                struct stream_encoder *enc,
 106                bool enable,
 107                uint8_t *dsc_packed_pps,
 108                bool immediate_update)
 109{}
 110
 111static const struct stream_encoder_funcs virtual_str_enc_funcs = {
 112        .dp_set_odm_combine =
 113                virtual_enc_dp_set_odm_combine,
 114        .dp_set_stream_attribute =
 115                virtual_stream_encoder_dp_set_stream_attribute,
 116        .hdmi_set_stream_attribute =
 117                virtual_stream_encoder_hdmi_set_stream_attribute,
 118        .dvi_set_stream_attribute =
 119                virtual_stream_encoder_dvi_set_stream_attribute,
 120        .set_throttled_vcp_size =
 121                virtual_stream_encoder_set_throttled_vcp_size,
 122        .update_hdmi_info_packets =
 123                virtual_stream_encoder_update_hdmi_info_packets,
 124        .stop_hdmi_info_packets =
 125                virtual_stream_encoder_stop_hdmi_info_packets,
 126        .update_dp_info_packets =
 127                virtual_stream_encoder_update_dp_info_packets,
 128        .stop_dp_info_packets =
 129                virtual_stream_encoder_stop_dp_info_packets,
 130        .dp_blank =
 131                virtual_stream_encoder_dp_blank,
 132        .dp_unblank =
 133                virtual_stream_encoder_dp_unblank,
 134
 135        .audio_mute_control = virtual_audio_mute_control,
 136        .set_avmute = virtual_stream_encoder_set_avmute,
 137        .hdmi_reset_stream_attribute = virtual_stream_encoder_reset_hdmi_stream_attribute,
 138        .dig_connect_to_otg = virtual_dig_connect_to_otg,
 139        .setup_stereo_sync = virtual_setup_stereo_sync,
 140        .dp_set_dsc_pps_info_packet = virtual_stream_encoder_set_dsc_pps_info_packet,
 141};
 142
 143bool virtual_stream_encoder_construct(
 144        struct stream_encoder *enc,
 145        struct dc_context *ctx,
 146        struct dc_bios *bp)
 147{
 148        if (!enc)
 149                return false;
 150        if (!bp)
 151                return false;
 152
 153        enc->funcs = &virtual_str_enc_funcs;
 154        enc->ctx = ctx;
 155        enc->id = ENGINE_ID_VIRTUAL;
 156        enc->bp = bp;
 157
 158        return true;
 159}
 160
 161struct stream_encoder *virtual_stream_encoder_create(
 162        struct dc_context *ctx, struct dc_bios *bp)
 163{
 164        struct stream_encoder *enc = kzalloc(sizeof(*enc), GFP_KERNEL);
 165
 166        if (!enc)
 167                return NULL;
 168
 169        if (virtual_stream_encoder_construct(enc, ctx, bp))
 170                return enc;
 171
 172        BREAK_TO_DEBUGGER();
 173        kfree(enc);
 174        return NULL;
 175}
 176
 177