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 uint32_t enable_sdp_splitting) {} 36 37 static void virtual_stream_encoder_hdmi_set_stream_attribute( 38 struct stream_encoder *enc, 39 struct dc_crtc_timing *crtc_timing, 40 int actual_pix_clk_khz, 41 bool enable_audio) {} 42 43 static void virtual_stream_encoder_dvi_set_stream_attribute( 44 struct stream_encoder *enc, 45 struct dc_crtc_timing *crtc_timing, 46 bool is_dual_link) {} 47 48 static void virtual_stream_encoder_set_mst_bandwidth( 49 struct stream_encoder *enc, 50 struct fixed31_32 avg_time_slots_per_mtp) {} 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 stream_encoder *enc) {} 71 72 static void virtual_stream_encoder_dp_unblank( 73 struct stream_encoder *enc, 74 const struct encoder_unblank_param *param) {} 75 76 static void virtual_audio_mute_control( 77 struct stream_encoder *enc, 78 bool mute) {} 79 80 static const struct stream_encoder_funcs virtual_str_enc_funcs = { 81 .dp_set_stream_attribute = 82 virtual_stream_encoder_dp_set_stream_attribute, 83 .hdmi_set_stream_attribute = 84 virtual_stream_encoder_hdmi_set_stream_attribute, 85 .dvi_set_stream_attribute = 86 virtual_stream_encoder_dvi_set_stream_attribute, 87 .set_mst_bandwidth = 88 virtual_stream_encoder_set_mst_bandwidth, 89 .update_hdmi_info_packets = 90 virtual_stream_encoder_update_hdmi_info_packets, 91 .stop_hdmi_info_packets = 92 virtual_stream_encoder_stop_hdmi_info_packets, 93 .update_dp_info_packets = 94 virtual_stream_encoder_update_dp_info_packets, 95 .stop_dp_info_packets = 96 virtual_stream_encoder_stop_dp_info_packets, 97 .dp_blank = 98 virtual_stream_encoder_dp_blank, 99 .dp_unblank = 100 virtual_stream_encoder_dp_unblank, 101 102 .audio_mute_control = virtual_audio_mute_control, 103 .set_avmute = virtual_stream_encoder_set_avmute, 104 }; 105 106 bool virtual_stream_encoder_construct( 107 struct stream_encoder *enc, 108 struct dc_context *ctx, 109 struct dc_bios *bp) 110 { 111 if (!enc) 112 return false; 113 if (!bp) 114 return false; 115 116 enc->funcs = &virtual_str_enc_funcs; 117 enc->ctx = ctx; 118 enc->id = ENGINE_ID_VIRTUAL; 119 enc->bp = bp; 120 121 return true; 122 } 123 124 struct stream_encoder *virtual_stream_encoder_create( 125 struct dc_context *ctx, struct dc_bios *bp) 126 { 127 struct stream_encoder *enc = kzalloc(sizeof(*enc), GFP_KERNEL); 128 129 if (!enc) 130 return NULL; 131 132 if (virtual_stream_encoder_construct(enc, ctx, bp)) 133 return enc; 134 135 BREAK_TO_DEBUGGER(); 136 kfree(enc); 137 return NULL; 138 } 139 140