/*
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* Copyright 2018 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: AMD
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*
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*/
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#ifndef __DCE_I2C_SW_H__
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#define __DCE_I2C_SW_H__
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enum {
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DCE_I2C_DEFAULT_I2C_SW_SPEED = 50,
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I2C_SW_RETRIES = 10,
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I2C_SW_TIMEOUT_DELAY = 3000,
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};
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struct dce_i2c_sw {
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struct ddc *ddc;
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struct dc_context *ctx;
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uint32_t clock_delay;
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uint32_t speed;
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};
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void dce_i2c_sw_construct(
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struct dce_i2c_sw *dce_i2c_sw,
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struct dc_context *ctx);
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bool dce_i2c_submit_command_sw(
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struct resource_pool *pool,
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struct ddc *ddc,
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struct i2c_command *cmd,
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struct dce_i2c_sw *dce_i2c_sw);
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bool dce_i2c_engine_acquire_sw(
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struct dce_i2c_sw *dce_i2c_sw,
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struct ddc *ddc_handle);
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#endif
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