c85e6e546e
[Why] I2C code did not match dc resource model and was generally unpleasant [How] Move code into new svelte dce_i2c files, replacing various i2c objects with two structs: dce_i2c_sw and dce_i2c_hw. Fully split sw and hw code paths. Remove all redundant declarations. Use address lists to distinguish between versions. Change dce80 code to newer register access macros. Signed-off-by: David Francis <David.Francis@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
/*
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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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#include "dce_i2c.h"
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#include "reg_helper.h"
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bool dce_i2c_submit_command(
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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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{
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struct dce_i2c_hw *dce_i2c_hw;
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struct dce_i2c_sw *dce_i2c_sw;
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if (!ddc) {
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BREAK_TO_DEBUGGER();
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return false;
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}
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if (!cmd) {
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BREAK_TO_DEBUGGER();
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return false;
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}
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/* The software engine is only available on dce8 */
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dce_i2c_sw = dce_i2c_acquire_i2c_sw_engine(pool, ddc);
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if (!dce_i2c_sw) {
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dce_i2c_hw = acquire_i2c_hw_engine(pool, ddc);
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if (!dce_i2c_hw)
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return false;
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return dce_i2c_submit_command_hw(pool, ddc, cmd, dce_i2c_hw);
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}
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return dce_i2c_submit_command_sw(pool, ddc, cmd, dce_i2c_sw);
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}
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