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/*
 45 * Update DP branch info
 46 */
 47void dm_helpers_dp_update_branch_info(
 48		struct dc_context *ctx,
 49		const struct dc_link *link);
 50
 51/*
 52 * Writes payload allocation table in immediate downstream device.
 53 */
 54bool dm_helpers_dp_mst_write_payload_allocation_table(
 55		struct dc_context *ctx,
 56		const struct dc_stream_state *stream,
 57		struct dp_mst_stream_allocation_table *proposed_table,
 58		bool enable);
 59
 60/*
 61 * poll pending down reply
 62 */
 63void dm_helpers_dp_mst_poll_pending_down_reply(
 64	struct dc_context *ctx,
 65	const struct dc_link *link);
 66
 67/*
 68 * Clear payload allocation table before enable MST DP link.
 69 */
 70void dm_helpers_dp_mst_clear_payload_allocation_table(
 71	struct dc_context *ctx,
 72	const struct dc_link *link);
 73
 74/*
 75 * Polls for ACT (allocation change trigger) handled and
 76 */
 77bool dm_helpers_dp_mst_poll_for_allocation_change_trigger(
 78		struct dc_context *ctx,
 79		const struct dc_stream_state *stream);
 80/*
 81 * Sends ALLOCATE_PAYLOAD message.
 82 */
 83bool dm_helpers_dp_mst_send_payload_allocation(
 84		struct dc_context *ctx,
 85		const struct dc_stream_state *stream,
 86		bool enable);
 87
 88bool dm_helpers_dp_mst_start_top_mgr(
 89		struct dc_context *ctx,
 90		const struct dc_link *link,
 91		bool boot);
 92
 93void dm_helpers_dp_mst_stop_top_mgr(
 94		struct dc_context *ctx,
 95		const struct dc_link *link);
 96/**
 97 * OS specific aux read callback.
 98 */
 99bool dm_helpers_dp_read_dpcd(
100		struct dc_context *ctx,
101		const struct dc_link *link,
102		uint32_t address,
103		uint8_t *data,
104		uint32_t size);
105
106/**
107 * OS specific aux write callback.
108 */
109bool dm_helpers_dp_write_dpcd(
110		struct dc_context *ctx,
111		const struct dc_link *link,
112		uint32_t address,
113		const uint8_t *data,
114		uint32_t size);
115
116bool dm_helpers_submit_i2c(
117		struct dc_context *ctx,
118		const struct dc_link *link,
119		struct i2c_command *cmd);
120
121#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
122bool dm_helpers_dp_write_dsc_enable(
123		struct dc_context *ctx,
124		const struct dc_stream_state *stream,
125		bool enable
126);
127#endif
128bool dm_helpers_is_dp_sink_present(
129		struct dc_link *link);
130
131enum dc_edid_status dm_helpers_read_local_edid(
132		struct dc_context *ctx,
133		struct dc_link *link,
134		struct dc_sink *sink);
135
136void dm_set_dcn_clocks(
137		struct dc_context *ctx,
138		struct dc_clocks *clks);
139
140#endif /* __DM_HELPERS__ */