BSP Developer's Guide

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VxWorks 5.5 BSP Developer’s Guide INCLUDE_WVUPLOAD_TSFSSOCK INCLUDE_WVUPLOAD_FILE } // end of usrWindviewInit usrShowInit {// show routines init group INCLUDE_TASK_SHOW INCLUDE_CLASS_SHOW INCLUDE_MEM_SHOW INCLUDE_TASK_HOOKS_SHOW INCLUDE_SEM_SHOW INCLUDE_MSG_Q_SHOW INCLUDE_WATCHDOGS_SHOW INCLUDE_SYM_TBL_SHOW INCLUDE_MMU_FULL_SHOW INCLUDE_POSIX_MQ_SHOW INCLUDE_POSIX_SEM_SHOW INCLUDE_HW_FP_SHOW INCLUDE_ATA_SHOW INCLUDE_TRIGGER_SHOW INCLUDE_RBUFF_SHOW INCLUDE_STDIO_SHOW } // end of usrShowInit }// end of usrToolsInit INCLUDE_CPLUS INCLUDE_CPLUS_DEMANGLER INCLUDE_HTTP INCLUDE_USER_APPL // start user application } // end of usrRoot 246
F Generic Drivers F.1 Introduction This appendix provides guidelines for writing generic drivers for the handful of devices that are common to most BSPs. Although BSPs can differ considerably in detail, there are some needs that are common to almost all. For example, most BSPs require a serial device driver or a timer driver. Ideally, the drivers for these devices would be generic enough to port to a new BSP with a simple recompilation. This reuse of code reduces your maintenance overhead and lets you focus your testing efforts, which results in better tested code. For example, using generic drivers let Wind River save 500 lines of C source code in three similar BSPs. 1 To help you use generic drivers across multiple similar BSPs, the BSP kit includes source for generic drivers in the target/src/drv directory. At compile time, sysLib.c (a file duplicated in every BSP) can include generic drivers from the target/src/drv directory as needed. As you develop drivers for your BSPs, you should strive to create drivers that are generic enough to service multiple BSPs. You can add such drivers to those in the target/src/drv directory. However, when dealing with atypical hardware or legacy code, it might not be practical to use a generic driver. Some hardware designs are just too different to work with a generic driver. In the case of legacy code, it might be possible to use a generic driver. Unfortunately, reworking the BSP to use a generic driver might not be worth the effort, especially if you are just upgrading the BSP to a new release of VxWorks. In either case, you must create or maintain a BSP-specific driver. Such a 1. VxWorks network and SCSI device drivers (distributed in object form) are not discussed here, but are covered in other appendices in this manual. 247
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VxWorks® 5.5 BSP DEVELOPER’S GUI
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1 Overview ........................
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Contents 1 Overview ...............
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Contents 3.6.5 Cache, MMU, and DMA
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Contents Memory-Mapped Chips ......
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Contents 7.3.3 System Configuration
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Contents 9.5.4 Processing .........
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Contents F Generic Drivers ........
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Contents Stopping the Driver Withou
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1 Overview 1.1 Introduction One str
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1 Overview ■ New Drivers Many new
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1 Overview Included with Tornado (n
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1 Overview ■ ■ ■ ■ ■ ■
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1 Overview Table 1-1 Font Usage for
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2 BSP Organization 2.1 Introduction
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2 BSP Organization Files in the tar
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2 BSP Organization Files in the tar
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2 BSP Organization Version 1.0 BSPs
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2 BSP Organization SM_MEM_SIZE The
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2 BSP Organization For boards witho
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2 BSP Organization PCI_MSTR_IO_LOCA
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2 BSP Organization The entry point
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2 BSP Organization target.nr The fi
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2 BSP Organization bootrom This fil
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2 BSP Organization sysSerialHwInit(
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2 BSP Organization The Motorola M68
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2 BSP Organization Many VxWorks fac
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2 BSP Organization further board in
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2 BSP Organization can have very un
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3 Creating a New BSP 3.1 Introducti
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3 Creating a New BSP 3.2 Setting Up
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3 Creating a New BSP Makefile At a
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3 Creating a New BSP char * sysBspR
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3 Creating a New BSP ... #endif } T
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3 Creating a New BSP int dummy; ...
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3 Creating a New BSP To find the so
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3 Creating a New BSP might want to
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3 Creating a New BSP not, use the s
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3 Creating a New BSP ■ It has a V
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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 to the start
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4 Hardware Guidelines Higher-level
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4 Hardware Guidelines Such dedicate
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4 Hardware Guidelines Especially us
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4 Hardware Guidelines selected from
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4 Hardware Guidelines Hardware Inte
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4 Hardware Guidelines The rest of t
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4 Hardware Guidelines 4.4.2 System
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4 Hardware Guidelines only deal wit
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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 8.1.5 Oth
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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 Spelling
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9 Documentation Guidelines Table 9-
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9 Documentation Guidelines Table 9-
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9 Documentation Guidelines ■ Avoi
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9 Documentation Guidelines ■ ■
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9 Documentation Guidelines INCLUDE
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9 Documentation Guidelines INTRODUC
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9 Documentation Guidelines 9.5 Gene
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9 Documentation Guidelines uppercas
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9 Documentation Guidelines The foll
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Page 221 and 222: A Upgrading a BSP for Tornado 2.0 T
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Page 241 and 242: D VxWorks Boot Sequence Table D-1 d
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Page 249 and 250: E Component Language E.1 Component
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Page 267 and 268: F Generic Drivers CONSOLE_TTY This
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Page 275 and 276: G Upgrading 4.3 BSD Network Drivers
Page 285 and 286: H Implementing a MUX-Based Network
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H Implementing a MUX-Based Network
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I Writing a SCSI-2 Device Driver I.
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I Writing a SCSI-2 Device Driver On
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I Writing a SCSI-2 Device Driver A
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I Writing a SCSI-2 Device Driver /*
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I Writing a SCSI-2 Device Driver ;/
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I Writing a SCSI-2 Device Driver Th
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J BSP Validation Test Suite Referen
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K BSP Validation Checklists This ap
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K BSP Validation Checklists BSP Val
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K BSP Validation Checklists 7. Veri
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K BSP Validation Checklists 2. If t
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K BSP Validation Checklists Validat
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K BSP Validation Checklists Manufac
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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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