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 "dm_services_types.h"
28  
29  #include "virtual_link_encoder.h"
30  
virtual_link_encoder_validate_output_with_stream(struct link_encoder * enc,const struct dc_stream_state * stream)31  static bool virtual_link_encoder_validate_output_with_stream(
32  	struct link_encoder *enc,
33  	const struct dc_stream_state *stream) { return true; }
34  
virtual_link_encoder_hw_init(struct link_encoder * enc)35  static void virtual_link_encoder_hw_init(struct link_encoder *enc) {}
36  
virtual_link_encoder_setup(struct link_encoder * enc,enum signal_type signal)37  static void virtual_link_encoder_setup(
38  	struct link_encoder *enc,
39  	enum signal_type signal) {}
40  
virtual_link_encoder_enable_tmds_output(struct link_encoder * enc,enum clock_source_id clock_source,enum dc_color_depth color_depth,enum signal_type signal,uint32_t pixel_clock)41  static void virtual_link_encoder_enable_tmds_output(
42  	struct link_encoder *enc,
43  	enum clock_source_id clock_source,
44  	enum dc_color_depth color_depth,
45  	enum signal_type signal,
46  	uint32_t pixel_clock) {}
47  
virtual_link_encoder_enable_dp_output(struct link_encoder * enc,const struct dc_link_settings * link_settings,enum clock_source_id clock_source)48  static void virtual_link_encoder_enable_dp_output(
49  	struct link_encoder *enc,
50  	const struct dc_link_settings *link_settings,
51  	enum clock_source_id clock_source) {}
52  
virtual_link_encoder_enable_dp_mst_output(struct link_encoder * enc,const struct dc_link_settings * link_settings,enum clock_source_id clock_source)53  static void virtual_link_encoder_enable_dp_mst_output(
54  	struct link_encoder *enc,
55  	const struct dc_link_settings *link_settings,
56  	enum clock_source_id clock_source) {}
57  
virtual_link_encoder_disable_output(struct link_encoder * link_enc,enum signal_type signal)58  static void virtual_link_encoder_disable_output(
59  	struct link_encoder *link_enc,
60  	enum signal_type signal) {}
61  
virtual_link_encoder_dp_set_lane_settings(struct link_encoder * enc,const struct dc_link_settings * link_settings,const struct dc_lane_settings lane_settings[LANE_COUNT_DP_MAX])62  static void virtual_link_encoder_dp_set_lane_settings(
63  	struct link_encoder *enc,
64  	const struct dc_link_settings *link_settings,
65  	const struct dc_lane_settings lane_settings[LANE_COUNT_DP_MAX]) {}
66  
virtual_link_encoder_dp_set_phy_pattern(struct link_encoder * enc,const struct encoder_set_dp_phy_pattern_param * param)67  static void virtual_link_encoder_dp_set_phy_pattern(
68  	struct link_encoder *enc,
69  	const struct encoder_set_dp_phy_pattern_param *param) {}
70  
virtual_link_encoder_update_mst_stream_allocation_table(struct link_encoder * enc,const struct link_mst_stream_allocation_table * table)71  static void virtual_link_encoder_update_mst_stream_allocation_table(
72  	struct link_encoder *enc,
73  	const struct link_mst_stream_allocation_table *table) {}
74  
virtual_link_encoder_connect_dig_be_to_fe(struct link_encoder * enc,enum engine_id engine,bool connect)75  static void virtual_link_encoder_connect_dig_be_to_fe(
76  	struct link_encoder *enc,
77  	enum engine_id engine,
78  	bool connect) {}
79  
virtual_link_encoder_destroy(struct link_encoder ** enc)80  static void virtual_link_encoder_destroy(struct link_encoder **enc)
81  {
82  	kfree(*enc);
83  	*enc = NULL;
84  }
85  
virtual_link_encoder_get_max_link_cap(struct link_encoder * enc,struct dc_link_settings * link_settings)86  static void virtual_link_encoder_get_max_link_cap(struct link_encoder *enc,
87  		struct dc_link_settings *link_settings)
88  {
89  	/* Set Default link settings */
90  	struct dc_link_settings max_link_cap = {LANE_COUNT_FOUR, LINK_RATE_HIGH,
91  				LINK_SPREAD_05_DOWNSPREAD_30KHZ, false, 0};
92  	*link_settings = max_link_cap;
93  }
94  
95  static const struct link_encoder_funcs virtual_lnk_enc_funcs = {
96  	.validate_output_with_stream =
97  		virtual_link_encoder_validate_output_with_stream,
98  	.hw_init = virtual_link_encoder_hw_init,
99  	.setup = virtual_link_encoder_setup,
100  	.enable_tmds_output = virtual_link_encoder_enable_tmds_output,
101  	.enable_dp_output = virtual_link_encoder_enable_dp_output,
102  	.enable_dp_mst_output = virtual_link_encoder_enable_dp_mst_output,
103  	.disable_output = virtual_link_encoder_disable_output,
104  	.get_max_link_cap = virtual_link_encoder_get_max_link_cap,
105  	.dp_set_lane_settings = virtual_link_encoder_dp_set_lane_settings,
106  	.dp_set_phy_pattern = virtual_link_encoder_dp_set_phy_pattern,
107  	.update_mst_stream_allocation_table =
108  		virtual_link_encoder_update_mst_stream_allocation_table,
109  	.connect_dig_be_to_fe = virtual_link_encoder_connect_dig_be_to_fe,
110  	.destroy = virtual_link_encoder_destroy
111  };
112  
virtual_link_encoder_construct(struct link_encoder * enc,const struct encoder_init_data * init_data)113  bool virtual_link_encoder_construct(
114  	struct link_encoder *enc, const struct encoder_init_data *init_data)
115  {
116  	enc->funcs = &virtual_lnk_enc_funcs;
117  	enc->ctx = init_data->ctx;
118  	enc->id = init_data->encoder;
119  
120  	enc->hpd_source = init_data->hpd_source;
121  	enc->connector = init_data->connector;
122  
123  	enc->transmitter = init_data->transmitter;
124  
125  	enc->output_signals = SIGNAL_TYPE_VIRTUAL;
126  
127  	enc->preferred_engine = ENGINE_ID_VIRTUAL;
128  
129  	return true;
130  }
131  
132  
133