/** @file
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*
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* Copyright (c) 2021, Rockchip Inc. All rights reserved.
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*
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* This program and the accompanying materials
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* are licensed and made available under the terms and conditions of the BSD License
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* which accompanies this distribution. The full text of the license may be found at
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* http://opensource.org/licenses/bsd-license.php
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*
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* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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*
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**/
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#ifndef _RK_I2C_H__
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#define _RK_I2C_H__
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/*
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* I2C_FLAG_NORESTART is not part of PI spec, it allows to continue
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* transmission without repeated start operation.
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*/
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#define I2C_FLAG_NORESTART 0x00000002
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/*
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* Helper macros for maintaining multiple I2C buses
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* and devices defined via EFI_I2C_DEVICE.
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*/
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#define I2C_DEVICE_ADDRESS(Index) ((Index) & MAX_UINT16)
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#define I2C_DEVICE_BUS(Index) ((Index) >> 16)
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#define I2C_DEVICE_INDEX(Bus, Address) (((Address) & MAX_UINT16) | (Bus) << 16)
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#endif
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