Home | History | Annotate | Line # | Download | only in dc 
      1 /*	$NetBSD: dm_helpers.h,v 1.2 2021/12/18 23:45:00 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2012-15 Advanced Micro Devices, Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  *
     24  * Authors: AMD
     25  *
     26  */
     27 
     28 /**
     29  * This file defines helper functions provided by the Display Manager to
     30  * Display Core.
     31  */
     32 #ifndef __DM_HELPERS__
     33 #define __DM_HELPERS__
     34 
     35 #include "dc_types.h"
     36 #include "dc.h"
     37 
     38 struct dp_mst_stream_allocation_table;
     39 
     40 enum dc_edid_status dm_helpers_parse_edid_caps(
     41 	struct dc_context *ctx,
     42 	const struct dc_edid *edid,
     43 	struct dc_edid_caps *edid_caps);
     44 
     45 
     46 /*
     47  * Update DP branch info
     48  */
     49 void dm_helpers_dp_update_branch_info(
     50 		struct dc_context *ctx,
     51 		const struct dc_link *link);
     52 
     53 /*
     54  * Writes payload allocation table in immediate downstream device.
     55  */
     56 bool dm_helpers_dp_mst_write_payload_allocation_table(
     57 		struct dc_context *ctx,
     58 		const struct dc_stream_state *stream,
     59 		struct dp_mst_stream_allocation_table *proposed_table,
     60 		bool enable);
     61 
     62 /*
     63  * poll pending down reply
     64  */
     65 void dm_helpers_dp_mst_poll_pending_down_reply(
     66 	struct dc_context *ctx,
     67 	const struct dc_link *link);
     68 
     69 /*
     70  * Clear payload allocation table before enable MST DP link.
     71  */
     72 void dm_helpers_dp_mst_clear_payload_allocation_table(
     73 	struct dc_context *ctx,
     74 	const struct dc_link *link);
     75 
     76 /*
     77  * Polls for ACT (allocation change trigger) handled and
     78  */
     79 enum act_return_status dm_helpers_dp_mst_poll_for_allocation_change_trigger(
     80 		struct dc_context *ctx,
     81 		const struct dc_stream_state *stream);
     82 /*
     83  * Sends ALLOCATE_PAYLOAD message.
     84  */
     85 bool dm_helpers_dp_mst_send_payload_allocation(
     86 		struct dc_context *ctx,
     87 		const struct dc_stream_state *stream,
     88 		bool enable);
     89 
     90 bool dm_helpers_dp_mst_start_top_mgr(
     91 		struct dc_context *ctx,
     92 		const struct dc_link *link,
     93 		bool boot);
     94 
     95 void dm_helpers_dp_mst_stop_top_mgr(
     96 		struct dc_context *ctx,
     97 		const struct dc_link *link);
     98 /**
     99  * OS specific aux read callback.
    100  */
    101 bool dm_helpers_dp_read_dpcd(
    102 		struct dc_context *ctx,
    103 		const struct dc_link *link,
    104 		uint32_t address,
    105 		uint8_t *data,
    106 		uint32_t size);
    107 
    108 /**
    109  * OS specific aux write callback.
    110  */
    111 bool dm_helpers_dp_write_dpcd(
    112 		struct dc_context *ctx,
    113 		const struct dc_link *link,
    114 		uint32_t address,
    115 		const uint8_t *data,
    116 		uint32_t size);
    117 
    118 bool dm_helpers_submit_i2c(
    119 		struct dc_context *ctx,
    120 		const struct dc_link *link,
    121 		struct i2c_command *cmd);
    122 
    123 bool dm_helpers_dp_write_dsc_enable(
    124 		struct dc_context *ctx,
    125 		const struct dc_stream_state *stream,
    126 		bool enable
    127 );
    128 bool dm_helpers_is_dp_sink_present(
    129 		struct dc_link *link);
    130 
    131 enum dc_edid_status dm_helpers_read_local_edid(
    132 		struct dc_context *ctx,
    133 		struct dc_link *link,
    134 		struct dc_sink *sink);
    135 
    136 void dm_set_dcn_clocks(
    137 		struct dc_context *ctx,
    138 		struct dc_clocks *clks);
    139 
    140 #endif /* __DM_HELPERS__ */
    141