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 <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 uint32_t enable_sdp_splitting) {}
36
37static 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
43static 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
48static void virtual_stream_encoder_set_mst_bandwidth(
49 struct stream_encoder *enc,
50 struct fixed31_32 avg_time_slots_per_mtp) {}
51
52static void virtual_stream_encoder_update_hdmi_info_packets(
53 struct stream_encoder *enc,
54 const struct encoder_info_frame *info_frame) {}
55
56static void virtual_stream_encoder_stop_hdmi_info_packets(
57 struct stream_encoder *enc) {}
58
59static void virtual_stream_encoder_set_avmute(
60 struct stream_encoder *enc,
61 bool enable) {}
62static void virtual_stream_encoder_update_dp_info_packets(
63 struct stream_encoder *enc,
64 const struct encoder_info_frame *info_frame) {}
65
66static void virtual_stream_encoder_stop_dp_info_packets(
67 struct stream_encoder *enc) {}
68
69static void virtual_stream_encoder_dp_blank(
70 struct stream_encoder *enc) {}
71
72static void virtual_stream_encoder_dp_unblank(
73 struct stream_encoder *enc,
74 const struct encoder_unblank_param *param) {}
75
76static void virtual_audio_mute_control(
77 struct stream_encoder *enc,
78 bool mute) {}
79
80#ifdef CONFIG_DRM_AMD_DC_DCN2_0
81#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
82static void virtual_enc_dp_set_odm_combine(
83 struct stream_encoder *enc,
84 bool odm_combine)
85{}
86#endif
87#endif
88
89static const struct stream_encoder_funcs virtual_str_enc_funcs = {
90#ifdef CONFIG_DRM_AMD_DC_DCN2_0
91#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
92 .dp_set_odm_combine =
93 virtual_enc_dp_set_odm_combine,
94#endif
95#endif
96 .dp_set_stream_attribute =
97 virtual_stream_encoder_dp_set_stream_attribute,
98 .hdmi_set_stream_attribute =
99 virtual_stream_encoder_hdmi_set_stream_attribute,
100 .dvi_set_stream_attribute =
101 virtual_stream_encoder_dvi_set_stream_attribute,
102 .set_mst_bandwidth =
103 virtual_stream_encoder_set_mst_bandwidth,
104 .update_hdmi_info_packets =
105 virtual_stream_encoder_update_hdmi_info_packets,
106 .stop_hdmi_info_packets =
107 virtual_stream_encoder_stop_hdmi_info_packets,
108 .update_dp_info_packets =
109 virtual_stream_encoder_update_dp_info_packets,
110 .stop_dp_info_packets =
111 virtual_stream_encoder_stop_dp_info_packets,
112 .dp_blank =
113 virtual_stream_encoder_dp_blank,
114 .dp_unblank =
115 virtual_stream_encoder_dp_unblank,
116
117 .audio_mute_control = virtual_audio_mute_control,
118 .set_avmute = virtual_stream_encoder_set_avmute,
119};
120
121bool virtual_stream_encoder_construct(
122 struct stream_encoder *enc,
123 struct dc_context *ctx,
124 struct dc_bios *bp)
125{
126 if (!enc)
127 return false;
128 if (!bp)
129 return false;
130
131 enc->funcs = &virtual_str_enc_funcs;
132 enc->ctx = ctx;
133 enc->id = ENGINE_ID_VIRTUAL;
134 enc->bp = bp;
135
136 return true;
137}
138
139struct stream_encoder *virtual_stream_encoder_create(
140 struct dc_context *ctx, struct dc_bios *bp)
141{
142 struct stream_encoder *enc = kzalloc(sizeof(*enc), GFP_KERNEL);
143
144 if (!enc)
145 return NULL;
146
147 if (virtual_stream_encoder_construct(enc, ctx, bp))
148 return enc;
149
150 BREAK_TO_DEBUGGER();
151 kfree(enc);
152 return NULL;
153}
154