BSP Developer's Guide

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VxWorks 5.5 BSP Developer’s Guide Over the years, Wind River has been able to offer a wide range of BSPs to customers. However, with the proliferation of many new CPU boards (many of which are custom designs) Wind River alone has not been able to keep up with the demand for new BSPs. The Tornado BSP Developer’s Kit for VxWorks (BSP Kit) is intended to help you create, document, and test new BSPs, components, and projects. The process of porting VxWorks to a new board can be challenging, primarily because the VxWorks development tools are unavailable until after the porting is finished. Wind River has developed strategies that make porting easier. This BSP Kit provides these strategies and a detailed look at how the system elements interact. It also includes the technical information that a third party needs in order to create and distribute components and projects based upon Tornado 2.x. This release of the BSP Kit is compatible with Tornado 2.0 or later. Upgrading earlier BSPs to work with the Tornado 2.x product is a relatively simple task. For more information, see A. Upgrading a BSP for Tornado 2.0 or B. Upgrading a BSP for Tornado 2.2. New Features for Tornado 2.x ■ SCSI 1 Dropped Support for SCSI-1 drivers and libraries has been dropped. These libraries are still included in Tornado 2.0, but they are classified as obsolete and will not be included in future releases. ■ Macro TYCO5_2 Deleted The TYCO5_2 macro is no longer supported. Customers should be using SIO drivers for Tornado 2.x. ■ BSP Packaging Changes Refer to 10.2 BSP Packaging, p.195 for details on packaging requirements. See M. BSP Product Contents for a quick summary of a typical product contents. ■ Documentation All on-line documentation is now provided as HTML pages. A utility called refgen that generates HTML from existing nroff input is included in the system. ■ VxWorks Network Stack The network stack, which was an option for Tornado 1.0.1 users, is now the only stack supported. It is referred to as the VxWorks network stack. All BSPs have been converted to use drivers modified for the VxWorks network stack (BSD 44 stack). In BSPs where both BSD44 and END drivers are available, the END driver has been selected as the default driver for the BSP. 2
1 Overview ■ New Drivers Many new END network drivers have been added to the driver product in order to provide as many BSPs as possible with at least one available END driver. 1 ■ Integrated Simulators Tornado 2.x includes an integrated simulator with the base product. This allows developers to begin application development before the hardware environment is ready. ■ Integrated WindView The Tornado 2.x product contains an integrated WindView tool for examining run-time behavior. Refer to the WindView User’s Guide for information on how to use all the features of WindView. ■ VTS Test Updates The Validation Test Suite has received only minor updates that allow it to work correctly with the new virtual I/O features of the target shell. ■ SCSI Test Suites The SCSI performance test suites, which were omitted from the previous release of the porting kit, are now included on the CD-ROM. ■ ROM_WARM_ADRS This new macro has been introduced into the template BSPs and some existing BSPs. It represents the warm entry point into the boot ROM code, and is needed to remove the artificial computation of the entry point based on CPU family. Normally, ROM_WARM_ADRS is based on an offset from ROM_TEXT_ADRS, for example: #define ROM_WARM_ADRS (ROM_TEXT_ADRS + 8) ■ New SIO IOCTLs New SIO IOCTL codes have been created to support modem control lines. The IOCTLs SIO_OPEN and SIO_HUP notify the driver when the device is opened and closed. The new IOCTLs SIO_HW_OPTS_SET and SIO_HW_OPTS_GET allow the user to manage character length, parity, stop bits, and modem control lines. The options bit CLOCAL disables modem control lines from being used in the driver. For backward compatibility, the CLOCAL option is selected by default in Wind River-supplied BSPs. ■ Target.txt File Removed. The text version of the target.nr file (generated for Windows host users) has been eliminated. Both UNIX and Windows hosts now use a browser for reading documentation in HTML format. The host utility refgen takes nroff input and generates HTML output. 3
Page 1 and 2: VxWorks® 5.5 BSP DEVELOPER’S GUI
Page 3 and 4: 1 Overview ........................
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3 Creating a New BSP To find the so
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3 Creating a New BSP 3.6.7 SCSI VxW
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4 Hardware Guidelines 4.1 Introduct
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4 Hardware Guidelines Higher-level
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4 Hardware Guidelines 4.4.2 System
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4 Hardware Guidelines 4.4.13 Parall
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4 Hardware Guidelines 0x10000, /* 6
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4 Hardware Guidelines The following
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5 Driver Guidelines 5.1 Introductio
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5 Driver Guidelines Maintenance and
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5 Driver Guidelines word addresses.
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5 Driver Guidelines 5.4 Design Guid
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5 Driver Guidelines Per-Device Data
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5 Driver Guidelines To fix this sit
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5 Driver Guidelines block are more
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5 Driver Guidelines 5.8 Driver Use
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5 Driver Guidelines ■ ■ Memory
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5 Driver Guidelines The level of ca
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5 Driver Guidelines cache for the d
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6 Components 6.1 Introduction Torna
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6 Components 6.2 Component Descript
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6 Components ■ User Presentation.
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6 Components Folder FOLDER_ANSI { N
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6 Components in a single project. I
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6 Components The component object i
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6 Components Parameters Parameters
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6 Components In the example, the co
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6 Components (2) comps/vxWorks/arch
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6 Components Figure 6-4 Include Com
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6 Components NOTE: INIT_BEFORE only
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6 Components The _CHILDREN property
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6 Components ! CAUTION: Do not alte
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6 Components ■ Check the Project
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7 Validation Testing 7.1 Introducti
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7 Validation Testing ■ ■ The te
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7 Validation Testing 2. The script
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7 Validation Testing Figure 7-4 Typ
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7 Validation Testing NOTE: Wind Riv
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7 Validation Testing scsi Requires
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7 Validation Testing Table 7-1 Vali
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7 Validation Testing Table 7-2 Vali
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7 Validation Testing sysProcNumGet
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7 Validation Testing The log file c
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8 Writing Portable C Code This chap
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8 Writing Portable C Code attribute
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8 Writing Portable C Code 8.1.3 Sta
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8 Writing Portable C Code The last
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8 Writing Portable C Code Always sp
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8 Writing Portable C Code 8.2 Tool
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9 Documentation Guidelines 9.1 Intr
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9 Documentation Guidelines Table 9-
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9 Documentation Guidelines ■ Avoi
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9 Documentation Guidelines INCLUDE
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10 Product Packaging 10.1 SETUP Dev
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10 Product Packaging ... include $(
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10 Product Packaging Vendor-Supplie
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10 Product Packaging in the project
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A Upgrading a BSP for Tornado 2.0 T
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A Upgrading a BSP for Tornado 2.0 A
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B Upgrading a BSP for Tornado 2.2 T
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C Upgrading a BSP for the VxWorks N
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D VxWorks Boot Sequence Table D-1 d
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D VxWorks Boot Sequence Table D-1 V
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E Component Language E.1 Component
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E Component Language REQUIRES r1 r2
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E Component Language FOLDER_WINDVIE
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E Component Language initialization
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E Component Language INCLUDE_MMU_BA
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E Component Language INCLUDE_NETWOR
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E Component Language INCLUDE_WDB_ME
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F Generic Drivers F.1 Introduction
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F Generic Drivers CONSOLE_TTY This
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F Generic Drivers Define SIO_CALLBA
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G Upgrading 4.3 BSD Network Drivers
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H Implementing a MUX-Based Network
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K BSP Validation Checklists 7. Veri
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K BSP Validation Checklists Validat
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K BSP Validation Checklists Manufac
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L Refgen NOTE: In Tornado 1.0.1 and
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L Refgen * SYNOPSIS * \cs * void xx
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L Refgen Yields output approximatel
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L Refgen EXAMPLE INCLUDES SEE ALSO
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M BSP Product Contents When you are
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M BSP Product Contents Do not inclu
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Index A abort button 82 addressing
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Index clocks see also individual cl
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Index naming conventions 95 perform
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Index INCLUDE_USR_APPL 38 INCLUDE_V
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Index network drivers 58 network in
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Index scsiCtrlLib 324 scsiDirectLib
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Index testing, validation 139-158 s
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