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1 /*
2  * Copyright (C) 2012 - 2014 Andrew Duggan
3  * Copyright (C) 2012 - 2014 Synaptics Inc
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *      http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 #ifndef _FIRMWAREIMAGE_H_
19 #define _FIRMWAREIMAGE_H_
20 
21 #include "rmidevice.h"
22 #include "updateutil.h"
23 
24 #define RMI_IMG_CHECKSUM_OFFSET			0
25 #define RMI_IMG_IO_OFFSET			0x06
26 #define RMI_IMG_BOOTLOADER_VERSION_OFFSET	0x07
27 #define RMI_IMG_IMAGE_SIZE_OFFSET		0x08
28 #define RMI_IMG_CONFIG_SIZE_OFFSET		0x0C
29 #define RMI_IMG_PACKAGE_ID_OFFSET		0x1A
30 #define RMI_IMG_FW_BUILD_ID_OFFSET		0x50
31 
32 #define RMI_IMG_PRODUCT_ID_OFFSET		0x10
33 #define RMI_IMG_PRODUCT_INFO_OFFSET		0x1E
34 
35 #define RMI_IMG_FW_OFFSET			0x100
36 
37 #define RMI_IMG_LOCKDOWN_V2_OFFSET		0xD0
38 #define RMI_IMG_LOCKDOWN_V2_SIZE		0x30
39 
40 #define RMI_IMG_LOCKDOWN_V3_OFFSET		0xC0
41 #define RMI_IMG_LOCKDOWN_V3_SIZE		0x40
42 
43 #define RMI_IMG_LOCKDOWN_V5_OFFSET		0xB0
44 #define RMI_IMG_LOCKDOWN_V5_SIZE		0x50
45 
46 class FirmwareImage
47 {
48 public:
FirmwareImage()49 	FirmwareImage() : m_firmwareBuildID(0), m_packageID(0), m_firmwareData(NULL), m_configData(NULL), m_lockdownData(NULL),
50 				m_memBlock(NULL)
51 	{}
52 	int Initialize(const char * filename);
53 	int VerifyImageMatchesDevice(unsigned long deviceFirmwareSize,
54 					unsigned long deviceConfigSize);
GetFirmwareData()55 	unsigned char * GetFirmwareData() { return m_firmwareData; }
GetConfigData()56 	unsigned char * GetConfigData() { return m_configData; }
GetLockdownData()57 	unsigned char * GetLockdownData() { return m_lockdownData; }
GetFirmwareSize()58 	unsigned long GetFirmwareSize() { return m_firmwareSize; }
GetConfigSize()59 	unsigned long GetConfigSize() { return m_configSize; }
GetLockdownSize()60 	unsigned long GetLockdownSize() { return m_lockdownSize; }
GetFirmwareID()61 	unsigned long GetFirmwareID() { return m_firmwareBuildID; }
HasIO()62 	bool HasIO() { return m_io; }
63 	~FirmwareImage();
64 
65 private:
66 	unsigned long Checksum(unsigned short * data, unsigned long len);
67 	void PrintHeaderInfo();
68 
69 private:
70 	unsigned long m_checksum;
71 	unsigned long m_firmwareSize;
72 	unsigned long m_configSize;
73 	unsigned long m_lockdownSize;
74 	long m_imageSize;
75 	unsigned long m_firmwareBuildID;
76 	unsigned short m_packageID;
77 	unsigned char m_bootloaderVersion;
78 	unsigned char m_io;
79 	char m_productID[RMI_PRODUCT_ID_LENGTH + 1];
80 	unsigned short m_productInfo;
81 
82 	unsigned char * m_firmwareData;
83 	unsigned char * m_configData;
84 	unsigned char * m_lockdownData;
85 	unsigned char * m_memBlock;
86 };
87 
88 #endif // _FIRMWAREIMAGE_H_
89