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