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Noté. / 5. Basé sur avis des utilisateurs
Intel
®
EMGD—Intel
®
5F Extended Interface Functions
Intel
®
Embedded Media and Graphics Driver
User Guide April 2013
114 Document Number: 472133-012
C.1.7 5F68h – System BIOS Callback
This is a generic function that allows SoftBIOS to do any system callbacks through INT
15h. The Input/Output of this function is dependent on the definition of the desired INT
15h hook except for the EAX register.
Calling Registers:
AX = 5F68h, System BIOS Callback Function
EAX bits 31:16 = System BIOS INT 15h Hook Function
Return Registers:
AX = Return Status (function not supported if AL != 5Fh):
= 005Fh, Function supported and successful
= 015Fh, Function supported but failed
C.2 Hooks for the System BIOS
The video BIOS performs several system BIOS interrupt function calls (interrupt 15h
hooks). Each function provides the system BIOS with the opportunity to gain control at
specific times to perform any custom processing that may be required. After each
interrupt hook, the system BIOS must return control to the video BIOS. INT 10h calls
could be made within the INT 15h hook calls provided that it is not recursive and thus
cause a deadlock.
C.2.1 5F31h – POST Completion Notification Hook
This hook signals the completion of video POST (Power On Self Test). The hook
executes after the sign-on message is displayed and PCI BIOS resizing.
Calling Registers:
AX = 5F31h, POST Completion Notification Hook
Return Registers:
AX = Return Status (function not supported if AL != 5Fh):
= 015Fh, Function supported but failed
= 005Fh, Function supported and successful
C.2.2 5F33h – Hook After Mode Set
This hook allows the system BIOS to intercept the video BIOS at the end of a mode set.
Calling Registers:
AX = 5F33h, Hook After Mode Set
BH = Number of character columns
BL = Current mode number
CH = Active display page
Return Registers:
AX = Return Status (function not supported if AL != 5Fh):
= 015Fh, Function supported but failed
= 005Fh, Function supported and successful
- Embedded Media and Graphics 1
- Driver v1.18 (Windows* 7 and 1
- Windows* Embedded Standard 7 1
- Release) 1
- 2 Document Number: 472133-012 2
- Contents 3
- Revision History 7
- 1.0 Introduction 8
- 1.2 Intended Audience 9
- 1.3 Related Documents 9
- 1.4 Conventions 10
- 1.5 Acronyms and Terminology 10
- 1.6 Downloading Intel 13
- EMGD and Video BIOS 13
- 2.0 Architectural Overview 14
- 2.1.1 Display Options 15
- 2.1.1.1 Types of Displays 16
- 2.1.1.2 Display Configuration 16
- 2.2.2 OS and API Support 17
- 2.2.3 EDID-Less Configuration 17
- 2.2.4 Rotation 17
- 3.1 Before You Begin 18
- 3.3 Starting CED 20
- Table 6. Intel 22
- 3.5.2 Configuring Ports 27
- 3.5.2.2 Changing I2C Settings 30
- Figure 11. I2C Settings Page 31
- Table 11. I2C Settings 31
- 3.6 Creating a New Package 36
- IEMGD_HEAD_WINDOWS7 38
- 3.9 System BIOS Settings 39
- Custom Modes 42
- 3.11 Configuration Options 43
- 3.12.2 User-Specified DTDs 49
- 3.14 Panning Modes DTDs 50
- 3.16 Hot Plug Support 52
- HotPlugDelay timing to suit 54
- 4.0 Video Firmware 55
- 4.3.2.1 COMMON_TO_PORT 57
- 4.3.3 Building the VBIOS 59
- 5.2 Configuration Information 66
- 5.3 Installing Intel 79
- \IEMGD_HEAD_Windows7 80
- Processor E6xx Platform 84
- 5.5 Run-Time Operation 87
- Microsoft Windows 87
- Video Format 91
- Entry Point 91
- Note: Intel 92
- Example: 93
- .mp4) and the save location 94
- 5.9 Diagnostic Tool 95
- Enable “Port Hot” Key: 96
- Other potential DWORD values: 96
- A.2 Port Driver Attributes 98
- A.2.2.4 HDCP 100
- A.2.2.1 Audio 100
- A.2.2.2 sDVO-HDMI (CH7315) 100
- A.2.2.3 Internal HDMI 100
- Format” on page 43 101
- A.3.1 Default Search Order 104
- Appendix B 2D/3D API Support 105
- Table 32. Supported Intel 106
- OpenGL APIs (Sheet 2 of 3) 106
- OpenGL APIs (Sheet 3 of 3) 107
- EMGD—2D/3D API Support 108
- Appendix C Intel 109
- C.1.2 5F05h – Refresh Rate 110
- Calling Register: 111
- Return Registers: 111
- Calling Registers: 111
- User Guide April 2013 112
- April 2013 User Guide 113
- C.2 Hooks for the System BIOS 114
- C.2.6 5F40h – Config ID Hook 117
- E.1 Introduction 131
- E.4 Scope 131
- E.5 Features 132
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