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 #ifndef __DAL_DDC_SERVICE_H__ 27 #define __DAL_DDC_SERVICE_H__ 28 29 #include "include/ddc_service_types.h" 30 #include "include/i2caux_interface.h" 31 32 #define EDID_SEGMENT_SIZE 256 33 34 /* Address range from 0x00 to 0x1F.*/ 35 #define DP_ADAPTOR_TYPE2_SIZE 0x20 36 #define DP_ADAPTOR_TYPE2_REG_ID 0x10 37 #define DP_ADAPTOR_TYPE2_REG_MAX_TMDS_CLK 0x1D 38 /* Identifies adaptor as Dual-mode adaptor */ 39 #define DP_ADAPTOR_TYPE2_ID 0xA0 40 /* MHz*/ 41 #define DP_ADAPTOR_TYPE2_MAX_TMDS_CLK 600 42 /* MHz*/ 43 #define DP_ADAPTOR_TYPE2_MIN_TMDS_CLK 25 44 /* kHZ*/ 45 #define DP_ADAPTOR_DVI_MAX_TMDS_CLK 165000 46 /* kHZ*/ 47 #define DP_ADAPTOR_HDMI_SAFE_MAX_TMDS_CLK 165000 48 49 #define DDC_I2C_COMMAND_ENGINE I2C_COMMAND_ENGINE_SW 50 51 struct ddc_service; 52 struct graphics_object_id; 53 enum ddc_result; 54 struct av_sync_data; 55 struct dp_receiver_id_info; 56 57 struct i2c_payloads; 58 struct aux_payloads; 59 60 void dal_ddc_i2c_payloads_add( 61 struct i2c_payloads *payloads, 62 uint32_t address, 63 uint32_t len, 64 uint8_t *data, 65 bool write); 66 67 void dal_ddc_aux_payloads_add( 68 struct aux_payloads *payloads, 69 uint32_t address, 70 uint32_t len, 71 uint8_t *data, 72 bool write); 73 74 struct ddc_service_init_data { 75 struct graphics_object_id id; 76 struct dc_context *ctx; 77 struct dc_link *link; 78 }; 79 80 struct ddc_service *dal_ddc_service_create( 81 struct ddc_service_init_data *ddc_init_data); 82 83 void dal_ddc_service_destroy(struct ddc_service **ddc); 84 85 enum ddc_service_type dal_ddc_service_get_type(struct ddc_service *ddc); 86 87 void dal_ddc_service_set_transaction_type( 88 struct ddc_service *ddc, 89 enum ddc_transaction_type type); 90 91 bool dal_ddc_service_is_in_aux_transaction_mode(struct ddc_service *ddc); 92 93 void dal_ddc_service_i2c_query_dp_dual_mode_adaptor( 94 struct ddc_service *ddc, 95 struct display_sink_capability *sink_cap); 96 97 bool dal_ddc_service_query_ddc_data( 98 struct ddc_service *ddc, 99 uint32_t address, 100 uint8_t *write_buf, 101 uint32_t write_size, 102 uint8_t *read_buf, 103 uint32_t read_size); 104 105 int dc_link_aux_transfer(struct ddc_service *ddc, 106 unsigned int address, 107 uint8_t *reply, 108 void *buffer, 109 unsigned int size, 110 enum aux_transaction_type type, 111 enum i2caux_transaction_action action); 112 113 void dal_ddc_service_write_scdc_data( 114 struct ddc_service *ddc_service, 115 uint32_t pix_clk, 116 bool lte_340_scramble); 117 118 void dal_ddc_service_read_scdc_data( 119 struct ddc_service *ddc_service); 120 121 void ddc_service_set_dongle_type(struct ddc_service *ddc, 122 enum display_dongle_type dongle_type); 123 124 void dal_ddc_service_set_ddc_pin( 125 struct ddc_service *ddc_service, 126 struct ddc *ddc); 127 128 struct ddc *dal_ddc_service_get_ddc_pin(struct ddc_service *ddc_service); 129 130 uint32_t get_defer_delay(struct ddc_service *ddc); 131 132 #endif /* __DAL_DDC_SERVICE_H__ */ 133 134