📄 bulverde_iicbus.h
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//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// install media.
//
//------------------------------------------------------------------------------
//
// Header: bulverde_iicbus.h
//
// Defines the I2C bus controller CPU register layout and definitions.
//
#ifndef __BULVERDE_IICBUS_H
#define __BULVERDE_IICBUS_H
#if __cplusplus
extern "C"
{
#endif
//
// I2C bit definitions.
//
#define I2C_START 0x1
#define I2C_STOP 0x2
#define I2C_TB 0x8
#define I2C_MA 0x10
#define I2C_SCLE 0x20
#define I2C_IUE 0x40
#define I2C_GCD 0x80
#define I2C_ITEIE 0x100
#define I2C_IRFIE 0x200
#define I2C_BEIE 0x400
#define I2C_SDIE 0x800
#define I2C_ALDIE 0x1000
#define I2C_SADIE 0x2000
#define I2C_UR 0x4000
#define I2C_FM 0x8000
#define I2C_ITE 0x40
#define I2C_ARB 0x20
//
// Power management change control register bits.
//
#define PVCR_VCSA (0x1<<14)
#define PVCR_CommandDelay (0xf80)
//
// Power management general configuration register bits.
//
#define PCFR_FVC (0x1 << 10)
#define PCFR_PI2C_EN (0x1 << 6)
//
// Power management I2C command register bits.
//
#define PCMD_MBC (0x1 << 12)
#define PCMD_DCE (0x1 << 11)
#define PCMD_LC (0x1 << 10)
#define PCMD_SQC (0x3 << 8)
//
// I2C controller register types.
//
enum RegTypes {ReadWrite, ReadOnly, WriteOnly, Verify, Reserved};
struct RegistersTableInfo
{
int addr;
int data;
int code;
};
//------------------------------------------------------------------------------
// Type: BULVERDE_IICBUS_REG
//
// Defines IIC bus control register layout.
//
typedef struct
{
UINT32 ibmr; // I2C bus monitor register.
UINT32 rsvd0;
UINT32 idbr; // I2C data buffer register.
UINT32 rsvd1;
UINT32 icr; // I2C control register.
UINT32 rsvd2;
UINT32 isr; // I2C status register.
UINT32 rsvd3;
UINT32 isar; // I2C slave address register.
UINT32 rsvd4;
UINT32 i2ccr; // I2C clock count register.
} BULVERDE_IICBUS_REG, *PBULVERDE_IICBUS_REG;
#if __cplusplus
}
#endif
#endif
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