Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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
29static 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 uint32_t enable_sdp_splitting) {}
34
35static void virtual_stream_encoder_hdmi_set_stream_attribute(
36 struct stream_encoder *enc,
37 struct dc_crtc_timing *crtc_timing,
38 int actual_pix_clk_khz,
39 bool enable_audio) {}
40
41static void virtual_stream_encoder_dvi_set_stream_attribute(
42 struct stream_encoder *enc,
43 struct dc_crtc_timing *crtc_timing,
44 bool is_dual_link) {}
45
46static void virtual_stream_encoder_set_mst_bandwidth(
47 struct stream_encoder *enc,
48 struct fixed31_32 avg_time_slots_per_mtp) {}
49
50static void virtual_stream_encoder_update_hdmi_info_packets(
51 struct stream_encoder *enc,
52 const struct encoder_info_frame *info_frame) {}
53
54static void virtual_stream_encoder_stop_hdmi_info_packets(
55 struct stream_encoder *enc) {}
56
57static void virtual_stream_encoder_set_avmute(
58 struct stream_encoder *enc,
59 bool enable) {}
60static void virtual_stream_encoder_update_dp_info_packets(
61 struct stream_encoder *enc,
62 const struct encoder_info_frame *info_frame) {}
63
64static void virtual_stream_encoder_stop_dp_info_packets(
65 struct stream_encoder *enc) {}
66
67static void virtual_stream_encoder_dp_blank(
68 struct stream_encoder *enc) {}
69
70static void virtual_stream_encoder_dp_unblank(
71 struct stream_encoder *enc,
72 const struct encoder_unblank_param *param) {}
73
74static void virtual_audio_mute_control(
75 struct stream_encoder *enc,
76 bool mute) {}
77
78static const struct stream_encoder_funcs virtual_str_enc_funcs = {
79 .dp_set_stream_attribute =
80 virtual_stream_encoder_dp_set_stream_attribute,
81 .hdmi_set_stream_attribute =
82 virtual_stream_encoder_hdmi_set_stream_attribute,
83 .dvi_set_stream_attribute =
84 virtual_stream_encoder_dvi_set_stream_attribute,
85 .set_mst_bandwidth =
86 virtual_stream_encoder_set_mst_bandwidth,
87 .update_hdmi_info_packets =
88 virtual_stream_encoder_update_hdmi_info_packets,
89 .stop_hdmi_info_packets =
90 virtual_stream_encoder_stop_hdmi_info_packets,
91 .update_dp_info_packets =
92 virtual_stream_encoder_update_dp_info_packets,
93 .stop_dp_info_packets =
94 virtual_stream_encoder_stop_dp_info_packets,
95 .dp_blank =
96 virtual_stream_encoder_dp_blank,
97 .dp_unblank =
98 virtual_stream_encoder_dp_unblank,
99
100 .audio_mute_control = virtual_audio_mute_control,
101 .set_avmute = virtual_stream_encoder_set_avmute,
102};
103
104bool virtual_stream_encoder_construct(
105 struct stream_encoder *enc,
106 struct dc_context *ctx,
107 struct dc_bios *bp)
108{
109 if (!enc)
110 return false;
111 if (!bp)
112 return false;
113
114 enc->funcs = &virtual_str_enc_funcs;
115 enc->ctx = ctx;
116 enc->id = ENGINE_ID_VIRTUAL;
117 enc->bp = bp;
118
119 return true;
120}
121
122struct stream_encoder *virtual_stream_encoder_create(
123 struct dc_context *ctx, struct dc_bios *bp)
124{
125 struct stream_encoder *enc = kzalloc(sizeof(*enc), GFP_KERNEL);
126
127 if (!enc)
128 return NULL;
129
130 if (virtual_stream_encoder_construct(enc, ctx, bp))
131 return enc;
132
133 BREAK_TO_DEBUGGER();
134 kfree(enc);
135 return NULL;
136}
137