1 /*
2  * Copyright 2017 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  */
23 /*
24  * link_encoder.h
25  *
26  *  Created on: Oct 6, 2015
27  *      Author: yonsun
28  */
29 
30 #ifndef LINK_ENCODER_H_
31 #define LINK_ENCODER_H_
32 
33 #include "grph_object_defs.h"
34 #include "signal_types.h"
35 #include "dc_types.h"
36 
37 struct dc_context;
38 struct encoder_set_dp_phy_pattern_param;
39 struct link_mst_stream_allocation_table;
40 struct dc_link_settings;
41 struct link_training_settings;
42 struct pipe_ctx;
43 
44 struct encoder_init_data {
45 	enum channel_id channel;
46 	struct graphics_object_id connector;
47 	enum hpd_source_id hpd_source;
48 	/* TODO: in DAL2, here was pointer to EventManagerInterface */
49 	struct graphics_object_id encoder;
50 	struct dc_context *ctx;
51 	enum transmitter transmitter;
52 };
53 
54 struct encoder_feature_support {
55 	union {
56 		struct {
57 			uint32_t IS_HBR2_CAPABLE:1;
58 			uint32_t IS_HBR3_CAPABLE:1;
59 			uint32_t IS_TPS3_CAPABLE:1;
60 			uint32_t IS_TPS4_CAPABLE:1;
61 			uint32_t IS_YCBCR_CAPABLE:1;
62 			uint32_t HDMI_6GB_EN:1;
63 		} bits;
64 		uint32_t raw;
65 	} flags;
66 
67 	enum dc_color_depth max_hdmi_deep_color;
68 	unsigned int max_hdmi_pixel_clock;
69 	bool ycbcr420_supported;
70 };
71 
72 union dpcd_psr_configuration {
73 	struct {
74 		unsigned char ENABLE                    : 1;
75 		unsigned char TRANSMITTER_ACTIVE_IN_PSR : 1;
76 		unsigned char CRC_VERIFICATION          : 1;
77 		unsigned char FRAME_CAPTURE_INDICATION  : 1;
78 		/* For eDP 1.4, PSR v2*/
79 		unsigned char LINE_CAPTURE_INDICATION   : 1;
80 		/* For eDP 1.4, PSR v2*/
81 		unsigned char IRQ_HPD_WITH_CRC_ERROR    : 1;
82 		unsigned char RESERVED                  : 2;
83 	} bits;
84 	unsigned char raw;
85 };
86 
87 union psr_error_status {
88 	struct {
89 		unsigned char LINK_CRC_ERROR        :1;
90 		unsigned char RFB_STORAGE_ERROR     :1;
91 		unsigned char RESERVED              :6;
92 	} bits;
93 	unsigned char raw;
94 };
95 
96 union psr_sink_psr_status {
97 	struct {
98 	unsigned char SINK_SELF_REFRESH_STATUS  :3;
99 	unsigned char RESERVED                  :5;
100 	} bits;
101 	unsigned char raw;
102 };
103 
104 struct link_encoder {
105 	const struct link_encoder_funcs *funcs;
106 	int32_t aux_channel_offset;
107 	struct dc_context *ctx;
108 	struct graphics_object_id id;
109 	struct graphics_object_id connector;
110 	uint32_t output_signals;
111 	enum engine_id preferred_engine;
112 	struct encoder_feature_support features;
113 	enum transmitter transmitter;
114 	enum hpd_source_id hpd_source;
115 };
116 
117 struct link_encoder_funcs {
118 	bool (*validate_output_with_stream)(
119 		struct link_encoder *enc, const struct dc_stream_state *stream);
120 	void (*hw_init)(struct link_encoder *enc);
121 	void (*setup)(struct link_encoder *enc,
122 		enum signal_type signal);
123 	void (*enable_tmds_output)(struct link_encoder *enc,
124 		enum clock_source_id clock_source,
125 		enum dc_color_depth color_depth,
126 		enum signal_type signal,
127 		uint32_t pixel_clock);
128 	void (*enable_dp_output)(struct link_encoder *enc,
129 		const struct dc_link_settings *link_settings,
130 		enum clock_source_id clock_source);
131 	void (*enable_dp_mst_output)(struct link_encoder *enc,
132 		const struct dc_link_settings *link_settings,
133 		enum clock_source_id clock_source);
134 	void (*disable_output)(struct link_encoder *link_enc,
135 		enum signal_type signal);
136 	void (*dp_set_lane_settings)(struct link_encoder *enc,
137 		const struct link_training_settings *link_settings);
138 	void (*dp_set_phy_pattern)(struct link_encoder *enc,
139 		const struct encoder_set_dp_phy_pattern_param *para);
140 	void (*update_mst_stream_allocation_table)(
141 		struct link_encoder *enc,
142 		const struct link_mst_stream_allocation_table *table);
143 	void (*psr_program_dp_dphy_fast_training)(struct link_encoder *enc,
144 			bool exit_link_training_required);
145 	void (*psr_program_secondary_packet)(struct link_encoder *enc,
146 				unsigned int sdp_transmit_line_num_deadline);
147 	void (*connect_dig_be_to_fe)(struct link_encoder *enc,
148 		enum engine_id engine,
149 		bool connect);
150 	void (*enable_hpd)(struct link_encoder *enc);
151 	void (*disable_hpd)(struct link_encoder *enc);
152 	bool (*is_dig_enabled)(struct link_encoder *enc);
153 	void (*destroy)(struct link_encoder **enc);
154 };
155 
156 #endif /* LINK_ENCODER_H_ */
157