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 36 struct dp_mst_stream_allocation_table; 37 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); 42 43 44 /* 45 * Update DP branch info 46 */ 47 void 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 */ 54 bool 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 */ 63 void 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 */ 70 void 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 */ 77 bool 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 */ 83 bool dm_helpers_dp_mst_send_payload_allocation( 84 struct dc_context *ctx, 85 const struct dc_stream_state *stream, 86 bool enable); 87 88 bool dm_helpers_dp_mst_start_top_mgr( 89 struct dc_context *ctx, 90 const struct dc_link *link, 91 bool boot); 92 93 void 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 */ 99 bool 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 */ 109 bool 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); 115 116 bool dm_helpers_submit_i2c( 117 struct dc_context *ctx, 118 const struct dc_link *link, 119 struct i2c_command *cmd); 120 121 bool dm_helpers_is_dp_sink_present( 122 struct dc_link *link); 123 124 enum dc_edid_status dm_helpers_read_local_edid( 125 struct dc_context *ctx, 126 struct dc_link *link, 127 struct dc_sink *sink); 128 129 void dm_set_dcn_clocks( 130 struct dc_context *ctx, 131 struct dc_clocks *clks); 132 133 #endif /* __DM_HELPERS__ */ 134