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1/*2 * Copyright 2018 Advanced Micro Devices, Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: AMD23 *24 */25 26#ifndef __DCE_I2C_SW_H__27#define __DCE_I2C_SW_H__28 29enum {30 DCE_I2C_DEFAULT_I2C_SW_SPEED = 50,31 I2C_SW_RETRIES = 10,32 I2C_SW_TIMEOUT_DELAY = 3000,33};34 35struct dce_i2c_sw {36 struct ddc *ddc;37 struct dc_context *ctx;38 uint32_t clock_delay;39 uint32_t speed;40};41 42void dce_i2c_sw_construct(43 struct dce_i2c_sw *dce_i2c_sw,44 struct dc_context *ctx);45 46bool dce_i2c_submit_command_sw(47 struct resource_pool *pool,48 struct ddc *ddc,49 struct i2c_command *cmd,50 struct dce_i2c_sw *dce_i2c_sw);51 52bool dce_i2c_engine_acquire_sw(53 struct dce_i2c_sw *dce_i2c_sw,54 struct ddc *ddc_handle);55 56#endif57 58