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 31 static 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 38 static 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 44 static 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 49 static void virtual_stream_encoder_set_mst_bandwidth( 50 struct stream_encoder *enc, 51 struct fixed31_32 avg_time_slots_per_mtp) {} 52 53 static void virtual_stream_encoder_update_hdmi_info_packets( 54 struct stream_encoder *enc, 55 const struct encoder_info_frame *info_frame) {} 56 57 static void virtual_stream_encoder_stop_hdmi_info_packets( 58 struct stream_encoder *enc) {} 59 60 static void virtual_stream_encoder_set_avmute( 61 struct stream_encoder *enc, 62 bool enable) {} 63 static void virtual_stream_encoder_update_dp_info_packets( 64 struct stream_encoder *enc, 65 const struct encoder_info_frame *info_frame) {} 66 67 static void virtual_stream_encoder_stop_dp_info_packets( 68 struct stream_encoder *enc) {} 69 70 static void virtual_stream_encoder_dp_blank( 71 struct stream_encoder *enc) {} 72 73 static void virtual_stream_encoder_dp_unblank( 74 struct stream_encoder *enc, 75 const struct encoder_unblank_param *param) {} 76 77 static void virtual_audio_mute_control( 78 struct stream_encoder *enc, 79 bool mute) {} 80 81 static void virtual_stream_encoder_reset_hdmi_stream_attribute( 82 struct stream_encoder *enc) 83 {} 84 85 static void virtual_enc_dp_set_odm_combine( 86 struct stream_encoder *enc, 87 bool odm_combine) 88 {} 89 90 static const struct stream_encoder_funcs virtual_str_enc_funcs = { 91 .dp_set_odm_combine = 92 virtual_enc_dp_set_odm_combine, 93 .dp_set_stream_attribute = 94 virtual_stream_encoder_dp_set_stream_attribute, 95 .hdmi_set_stream_attribute = 96 virtual_stream_encoder_hdmi_set_stream_attribute, 97 .dvi_set_stream_attribute = 98 virtual_stream_encoder_dvi_set_stream_attribute, 99 .set_mst_bandwidth = 100 virtual_stream_encoder_set_mst_bandwidth, 101 .update_hdmi_info_packets = 102 virtual_stream_encoder_update_hdmi_info_packets, 103 .stop_hdmi_info_packets = 104 virtual_stream_encoder_stop_hdmi_info_packets, 105 .update_dp_info_packets = 106 virtual_stream_encoder_update_dp_info_packets, 107 .stop_dp_info_packets = 108 virtual_stream_encoder_stop_dp_info_packets, 109 .dp_blank = 110 virtual_stream_encoder_dp_blank, 111 .dp_unblank = 112 virtual_stream_encoder_dp_unblank, 113 114 .audio_mute_control = virtual_audio_mute_control, 115 .set_avmute = virtual_stream_encoder_set_avmute, 116 .hdmi_reset_stream_attribute = virtual_stream_encoder_reset_hdmi_stream_attribute, 117 }; 118 119 bool virtual_stream_encoder_construct( 120 struct stream_encoder *enc, 121 struct dc_context *ctx, 122 struct dc_bios *bp) 123 { 124 if (!enc) 125 return false; 126 if (!bp) 127 return false; 128 129 enc->funcs = &virtual_str_enc_funcs; 130 enc->ctx = ctx; 131 enc->id = ENGINE_ID_VIRTUAL; 132 enc->bp = bp; 133 134 return true; 135 } 136 137 struct stream_encoder *virtual_stream_encoder_create( 138 struct dc_context *ctx, struct dc_bios *bp) 139 { 140 struct stream_encoder *enc = kzalloc(sizeof(*enc), GFP_KERNEL); 141 142 if (!enc) 143 return NULL; 144 145 if (virtual_stream_encoder_construct(enc, ctx, bp)) 146 return enc; 147 148 BREAK_TO_DEBUGGER(); 149 kfree(enc); 150 return NULL; 151 } 152 153