1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/** @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 10
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
|