| /** @file | |
| * | |
| * Copyright (c) 2015, Hisilicon Limited. All rights reserved. | |
| * Copyright (c) 2015, Linaro Limited. All rights reserved. | |
| * | |
| * This program and the accompanying materials | |
| * are licensed and made available under the terms and conditions of the BSD License | |
| * which accompanies this distribution. The full text of the license may be found at | |
| * http://opensource.org/licenses/bsd-license.php | |
| * | |
| * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
| * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
| * | |
| **/ | |
| #ifndef _I2C_LIB_H_ | |
| #define _I2C_LIB_H_ | |
| //I2C0 or I2C1 | |
| typedef enum { | |
| DEVICE_TYPE_SPD = 0, | |
| DEVICE_TYPE_E2PROM, | |
| DEVICE_TYPE_CPLD_3BYTE_OPERANDS, | |
| DEVICE_TYPE_CPLD_4BYTE_OPERANDS | |
| }I2C_DEVICE_TYPE; | |
| typedef enum { | |
| Normal = 0, | |
| Fast, | |
| SPEED_MODE_MAX | |
| }SPEED_MODE; | |
| #define I2C_PORT_MAX 9 | |
| typedef struct { | |
| UINT32 Socket; | |
| UINT32 Port; | |
| I2C_DEVICE_TYPE DeviceType; | |
| UINT32 SlaveDeviceAddress; | |
| }I2C_DEVICE; | |
| UINTN | |
| EFIAPI | |
| I2CInit(UINT32 Socket, UINT32 Port, SPEED_MODE SpeedMode); | |
| EFI_STATUS | |
| EFIAPI | |
| I2CWrite(I2C_DEVICE *I2cInfo, UINT16 InfoOffset, UINT32 ulLength, UINT8 *pBuf); | |
| EFI_STATUS | |
| EFIAPI | |
| I2CRead(I2C_DEVICE *I2cInfo, UINT16 InfoOffset,UINT32 ulRxLen,UINT8 *pBuf); | |
| EFI_STATUS | |
| EFIAPI | |
| I2CWriteMultiByte(I2C_DEVICE *I2cInfo, UINT32 InfoOffset, UINT32 ulLength, UINT8 *pBuf); | |
| EFI_STATUS | |
| EFIAPI | |
| I2CReadMultiByte(I2C_DEVICE *I2cInfo, UINT32 InfoOffset,UINT32 ulRxLen,UINT8 *pBuf); | |
| EFI_STATUS | |
| EFIAPI | |
| I2CSdaConfig(UINT32 Socket, UINT32 Port); | |
| #endif |