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/**
 27 * This file defines helper functions provided by the Display Manager to
 28 * Display Core.
 29 */
 30#ifndef __DM_HELPERS__
 31#define __DM_HELPERS__
 32
 33#include "dc_types.h"
 34#include "dc.h"
 35
 36struct dp_mst_stream_allocation_table;
 37
 38enum 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);
 42
 43/*
 44 * Writes payload allocation table in immediate downstream device.
 45 */
 46bool 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,
 50		bool enable);
 51
 52/*
 53 * Clear payload allocation table before enable MST DP link.
 54 */
 55void dm_helpers_dp_mst_clear_payload_allocation_table(
 56	struct dc_context *ctx,
 57	const struct dc_link *link);
 58
 59/*
 60 * Polls for ACT (allocation change trigger) handled and
 61 */
 62bool dm_helpers_dp_mst_poll_for_allocation_change_trigger(
 63		struct dc_context *ctx,
 64		const struct dc_stream_state *stream);
 65/*
 66 * Sends ALLOCATE_PAYLOAD message.
 67 */
 68bool dm_helpers_dp_mst_send_payload_allocation(
 69		struct dc_context *ctx,
 70		const struct dc_stream_state *stream,
 71		bool enable);
 72
 73bool dm_helpers_dp_mst_start_top_mgr(
 74		struct dc_context *ctx,
 75		const struct dc_link *link,
 76		bool boot);
 77
 78void dm_helpers_dp_mst_stop_top_mgr(
 79		struct dc_context *ctx,
 80		const struct dc_link *link);
 81/**
 82 * OS specific aux read callback.
 83 */
 84bool dm_helpers_dp_read_dpcd(
 85		struct dc_context *ctx,
 86		const struct dc_link *link,
 87		uint32_t address,
 88		uint8_t *data,
 89		uint32_t size);
 90
 91/**
 92 * OS specific aux write callback.
 93 */
 94bool dm_helpers_dp_write_dpcd(
 95		struct dc_context *ctx,
 96		const struct dc_link *link,
 97		uint32_t address,
 98		const uint8_t *data,
 99		uint32_t size);
100
101bool dm_helpers_submit_i2c(
102		struct dc_context *ctx,
103		const struct dc_link *link,
104		struct i2c_command *cmd);
105
106enum dc_edid_status dm_helpers_read_local_edid(
107		struct dc_context *ctx,
108		struct dc_link *link,
109		struct dc_sink *sink);
110
111void dm_set_dcn_clocks(
112		struct dc_context *ctx,
113		struct dc_clocks *clks);
114
115#endif /* __DM_HELPERS__ */