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26 #ifndef DC_INC_LINK_ENC_CFG_H_
27 #define DC_INC_LINK_ENC_CFG_H_
29 /* This module implements functionality for dynamically assigning DIG link
30 * encoder resources to display endpoints (links).
33 #include "core_types.h"
36 * Initialise link encoder resource tracking.
38 void link_enc_cfg_init(
40 struct dc_state *state);
43 * Algorithm for assigning available DIG link encoders to streams.
45 * Update link_enc_assignments table and link_enc_avail list accordingly in
46 * struct resource_context.
48 * Loop over all streams twice:
49 * a) First assign encoders to unmappable endpoints.
50 * b) Then assign encoders to mappable endpoints.
52 void link_enc_cfg_link_encs_assign(
54 struct dc_state *state,
55 struct dc_stream_state *streams[],
56 uint8_t stream_count);
59 * Unassign a link encoder from a stream.
61 * Update link_enc_assignments table and link_enc_avail list accordingly in
62 * struct resource_context.
64 void link_enc_cfg_link_enc_unassign(
65 struct dc_state *state,
66 struct dc_stream_state *stream);
69 * Check whether the transmitter driven by a link encoder is a mappable
72 bool link_enc_cfg_is_transmitter_mappable(
73 struct dc_state *state,
74 struct link_encoder *link_enc);
76 /* Return link using DIG link encoder resource. NULL if unused. */
77 struct dc_link *link_enc_cfg_get_link_using_link_enc(
78 struct dc_state *state,
79 enum engine_id eng_id);
81 /* Return DIG link encoder used by link. NULL if unused. */
82 struct link_encoder *link_enc_cfg_get_link_enc_used_by_link(
83 struct dc_state *state,
84 struct dc_link *link);
86 #endif /* DC_INC_LINK_ENC_CFG_H_ */