Motorola Mobility, Inc. v. Apple, Inc.

Filing 218

AFFIDAVIT signed by : Jill Ho. re 217 Response in Opposition to Motion Declaration of Jill Ho in Support of Apple's Opposition (D.E. 217) by Apple, Inc. (Attachments: # 1 Exhibit A, # 2 Exhibit B, # 3 Exhibit C, # 4 Exhibit D, # 5 Exhibit E, # 6 Exhibit F, # 7 Exhibit G, # 8 Exhibit H, # 9 Exhibit I, # 10 Exhibit J, # 11 Exhibit K, # 12 Exhibit L)(Pace, Christopher)

Exhibit I

Compaq Computer Corporation
Phoenix Technologies Ltd.
Intel Corporation

Plug and Play BIOS Specification
Version 1.0A
May 5, 1994

This specification has been made available to the public. You are hereby granted the right to use,
implement, reproduce, and distribute this specification with the foregoing rights at no charge. This
specification is, and shall remain, the property of Compaq Computer Corporation ("Compaq") Phoenix
Technologies LTD ("Phoenix") and Intel corporation ("Intel").
NEITHER COMPAQ, PHOENIX NOR INTEL MAKE ANY REPRESENTATION OR
WARRANTY REGARDING THIS SPECIFICATION OR ANY PRODUCT OR ITEM
DEVELOPED BASED ON THIS SPECIFICATION. USE OF THIS SPECIFICATION FOR ANY
PURPOSE IS AT THE RISK OF THE PERSON OR ENTITY USING IT. COMPAQ, PHOENIX
AND INTEL DISCLAIM ALL EXPRESS AND IMPLIED WARRANTIES, INCLUDING BUT
NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND FREEDOM FROM INFRINGEMENT. WITHOUT LIMITING
THE GENERALITY OF THE FOREGOING, NEITHER COMPAQ, PHOENIX NOR INTEL
MAKE ANY WARRANTY OF ANY KIND THAT ANY ITEM DEVELOPED BASED ON THIS
SPECIFICATION, OR ANY PORTION OF IT, WILL NOT INFRINGE ANY COPYRIGHT,
PATENT, TRADE SECRET OR OTHER INTELLECTUAL PROPERTY RIGHT OF ANY
PERSON OR ENTITY IN ANY COUNTRY.

Table Of Contents _______________________________
References ___________________________________________________________________________3
1.0 Overview ________________________________________________________________________3
1.1 Goals of a Plug and Play System BIOS
4
1.2 Enhancements to the current BIOS architecture
5
1.3 Elements of the Plug and Play BIOS architecture
6

Plug and Play BIOS Specification 1.0A

1.3.1 Bi-modal functionality
1.3.2 OS Independence
1.3.3 Expandability
1.4 Installation Structure

Page 2

6
6
6
7

2.0 System BIOS Initialization __________________________________________________________7
2.1 System BIOS POST Requirements
7
2.1.1 System Board Storage Requirements
8
2.1.2 System BIOS Resource Management
9
2.1.3 Isolating Committed Resources
9
2.1.4 System BIOS Resource Allocation
9
2.2 Plug and Play ISA Card Support
11
2.2.1 Assigning CSN to Plug and Play ISA cards
11
2.2.2 Initializing Plug and Play ISA Cards
11
2.3 BIOS POST Option ROM Initialization
12
2.4 Transferring Control to the Operating System
13
2.5 POST Execution flow
13
3.0 Option ROM Support _____________________________________________________________16
3.1 Option ROM Header
16
3.2 Expansion Header for Plug and Play
17
3.3 Option ROM Initialization
22
3.4 Option ROM Initialization flow
23
3.5 ISA Option ROMs and Resource Mapping
24
3.6 Error Recovery: Returning to the Boot flow
24
4.0 Configuration Support ____________________________________________________________25
4.1 System Device Configuration List
25
4.2 System Device Node Definition
25
4.3 Plug and Play BIOS Functions
29
4.4 Plug and Play Installation Check
29
4.4.1 System BIOS Plug and Play Compliance - "$PnP"
32
4.5 System Configuration Interface
34
4.5.1 Function 0 - Get Number of System Device Nodes
35
4.5.2 Function 1 - Get System Device Node
36
4.5.3 Function 2 - Set System Device Node
38
4.6 Event Notification Interface
40
4.6.1 Function 3 - Get Event
42
4.6.2 Function 4 - Send Message
43
4.6.3 Function 5 - Get Docking Station Information
47
4.6.4 Function 6 - Reserved
49
4.6.5 Function 7 - Reserved
49
4.6.6 Function 8 - Reserved
49
4.7 Extended Configuration Services
50
4.7.1 Function 9 - Set Statically Allocated Resource Information
51
4.7.2 Function 0Ah - Get Statically Allocated Resource Information
53
4.7.3 Function 40h - Get Plug & Play ISA Configuration Structure
54
4.7.4 Function 41h - Get Extended System Configuration Data (ESCD) Info
56
4.7.5 Function 42h - Read Extended System Configuration Data (ESCD)
56
4.7.6 Function 43h - Write Extended System Configuration Data (ESCD)
57
4.8 Power Management Services
58
4.8.1 Function 0Bh - Get APM ID Table
58

Plug and Play BIOS Specification 1.0A

Page 3

Appendix A: Generic Option ROM Headers _____________________________________________61
Appendix B: Device Driver Initialization Model___________________________________________62
Appendix C: Return Codes____________________________________________________________64

Plug and Play BIOS Specification 1.0A

Page 4

References _____________________________________
Plug and Play ISA Specification Version 1.0A May 5, 1994
Send email to [e-mail] to obtain a copy.
EISA Specification Version 3.12
Contact BCPR Services Inc to obtain a copy.
Extended System Configuration Data Specification Version 1.02a
Contact Intel Corporation to obtain a copy.
Device Identifier Reference Table & Device Type Code Table
Browse the PlugPlay forum on CompuServe to obtain a copy.

1.0 Overview ___________________________________
This Plug and Play BIOS Specification defines new functionality to be provided in a PC compatible
system BIOS to fulfill the goals of Plug and Play. To achieve these goals, several new components have
been added to the System BIOS. Two key areas that are addressed by the System BIOS are resource
management and runtime configuration.
Resource management provides the ability to manage the fundamental system resources which include
DMA, Interrupt Request Lines (IRQs), I/O and Memory addresses. These resources, termed system
resources, are in high demand and commonly are over-allocated or allocated in a conflicting manner in
ISA systems, leading to bootstrap and system configuration failures. A plug and play system BIOS will
play a vital role in helping to manage these resources and ensure a successful launch of the operating
system.
In its role as resource manager, a Plug and Play BIOS takes on the responsibility for configuring Plug and
Play cards, as well as systemboard devices during the power-up phase. After the POST process is
complete, control of the Plug and Play device configuration passes from the system BIOS to the system
software. The BIOS does, however, provide configuration services for systemboard devices even after the
POST process is complete. These services are known as Runtime Services.
Runtime configuration is a concept that has not previously existed in a System BIOS before. The system
BIOS has not previously provided the ability to dynamically change the resources allocated to systemboard
devices after the operating system has been loaded. The Plug and Play BIOS Specification provides a
mechanism whereby a Plug and Play operating system may perform this resource allocation dynamically
at runtime. The operating system may directly manipulate the configuration of devices which have
traditionally been considered static via a System BIOS device node structure.
In addition, a Plug and Play System BIOS may also support event management. By means of the
interfaces outlined in this document, the System BIOS may communicate the insertion and removal of
newly installed devices which have been added to the system at runtime. The event management support
defined by this specification are specific to devices controlled by the system BIOS, such as docking a
notebook system to, or undocking it from, an expansion base. This event management does not
encompass the insertion and removal of devices on the various expansion busses.
This document describes the BIOS support necessary for both systemboards and add-in boards with
Option ROMs.

1.1 Goals of a Plug and Play System BIOS
Considering the scope of Plug and Play, the following are the goals of the Plug and Play BIOS
Specification.
Maximize ISA compatibility

Plug and Play BIOS Specification 1.0A

Page 5

This is the key consideration in a system BIOS. It is considered unacceptable to change the
architecture of a System BIOS to prevent the thousands of ISA cards and software programs that
rely on the system BIOS for services.
Eliminate resource conflicts during the POST procedure
A common problem that plagues many ISA systems today is the fact that there are a lot more
devices available than there are system resources. In this environment, devices are bound to have
conflicting resources. The system BIOS will now play a key role to help prevent these resource
conflicts by not enabling devices which conflict with the primary boot devices, and relocating boot
devices, if necessary, to allow a successful load of the operating system. It is the role of the
operating system to provide support for communicating irreconcilable resource conflicts to the
user.
Support Plug and Play ISA cards
A Plug and Play system BIOS is responsible for the isolation, enumeration, and optional
configuration of Plug and Play ISA cards. These cards, which provide information on their
resource requirements and permit software to configure those resources, will allow the system
BIOS to arrive at a conflict free configuration necessary to load the operating system.
Allow dynamic configuration of systemboard devices
Systemboard devices have traditionally been treated as having somewhat static configurations. It is
a goal of the Plug and Play BIOS specification to provide a standard mechanism whereby
systemboard devices may be configured dynamically by system software. This will grant
configuration management software a great deal of flexibility when system resources are in
demand and alternate configurations are necessary.
Note: Dynamic device configuration requires explicit device driver support.

Provide system event notification
The system BIOS is capable of detecting certain hardware events that could affect the system
configuration. By providing an event notification mechanism, an operating system can recognize
the event and process any necessary configuration changes.