2 * Copyright 2012-15 Advanced Micro Devices, Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
27 * This file defines helper functions provided by the Display Manager to
30 #ifndef __DM_HELPERS__
31 #define __DM_HELPERS__
36 struct dp_mst_stream_allocation_table;
38 enum dc_edid_status dm_helpers_parse_edid_caps(
39 struct dc_context *ctx,
40 const struct dc_edid *edid,
41 struct dc_edid_caps *edid_caps);
44 * Writes payload allocation table in immediate downstream device.
46 bool dm_helpers_dp_mst_write_payload_allocation_table(
47 struct dc_context *ctx,
48 const struct dc_stream_state *stream,
49 struct dp_mst_stream_allocation_table *proposed_table,
53 * Clear payload allocation table before enable MST DP link.
55 void dm_helpers_dp_mst_clear_payload_allocation_table(
56 struct dc_context *ctx,
57 const struct dc_link *link);
60 * Polls for ACT (allocation change trigger) handled and
62 bool dm_helpers_dp_mst_poll_for_allocation_change_trigger(
63 struct dc_context *ctx,
64 const struct dc_stream_state *stream);
66 * Sends ALLOCATE_PAYLOAD message.
68 bool dm_helpers_dp_mst_send_payload_allocation(
69 struct dc_context *ctx,
70 const struct dc_stream_state *stream,
73 bool dm_helpers_dp_mst_start_top_mgr(
74 struct dc_context *ctx,
75 const struct dc_link *link,
78 void dm_helpers_dp_mst_stop_top_mgr(
79 struct dc_context *ctx,
80 const struct dc_link *link);
82 * OS specific aux read callback.
84 bool dm_helpers_dp_read_dpcd(
85 struct dc_context *ctx,
86 const struct dc_link *link,
92 * OS specific aux write callback.
94 bool dm_helpers_dp_write_dpcd(
95 struct dc_context *ctx,
96 const struct dc_link *link,
101 bool dm_helpers_submit_i2c(
102 struct dc_context *ctx,
103 const struct dc_link *link,
104 struct i2c_command *cmd);
106 enum dc_edid_status dm_helpers_read_local_edid(
107 struct dc_context *ctx,
108 struct dc_link *link,
109 struct dc_sink *sink);
111 void dm_set_dcn_clocks(
112 struct dc_context *ctx,
113 struct dc_clocks *clks);
115 #endif /* __DM_HELPERS__ */