BSP Developer's Guide

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VxWorks 5.5 <strong>BSP</strong> Developer’s <strong>Guide</strong> These error codes have the following meaning: END_ERR_INFO This error is information only. END_ERR_WARN A non-fatal error has occurred. END_ERR_RESET An error occurred that forced the device to reset itself, but the device has recovered. END_ERR_DOWN A fatal error occurred that forced the device to go down. The device can no longer send or receive packets. END_ERR_UP The device was down but is now up again and can receive and send packets. END_ERR_BLOCK The device is busy, the transaction should be tried again later. END_ERR_FLAGS The device flags have changed. END_ERR_NO_BUF The device’s cluster pool is exhausted. H.5 Required Driver Entry Points and Structures This section describes the API for an END. It describes the structures that are essential to such a driver and the entry points you must implement in the driver. NOTE: The organization of an END does not follow the model for a standard VxWorks I/O driver. The driver is not accessible through the open( ) routine or other file I/O routines. The driver is organized to communicate with the MUX. The MUX then handles communication with the network protocols. 282
H Implementing a MUX-Based Network Interface Driver H.5.1 Required Structures for a Driver Within your driver, you must allocate and initialize an END_OBJ. Your driver also needs to allocate and initialize the structures referenced in END_OBJ structures, such as DEV_OBJ, NET_FUNCS, and M2_INTERFACETBL. To pass packets up to the MUX, use an mBlk structure. Providing Network Device Abstraction: END_OBJ Your endLoad( ) entry point must allocate, initialize, and return an END_OBJ structure. The MUX uses this END_OBJ structure as a place to store the tools it needs to manipulate the stack and the device driver. These tools include data as well as pointers to functions. The END_OBJ structure is defined in end.h as follows: typedef struct end_object { NODE node; /* root of the device hierarchy */ DEV_OBJ devObject; /* accesses your device’s ctrl struct */ FUNCPTR receiveRtn; /* routine to call on reception */ BOOL attached; /* indicates unit is attached */ SEM_ID txSem; /* transmitter semaphore */ long flags; /* various flags */ struct net_funcs *pFuncTable; /* function table */ M2_INTERFACETBL mib2Tbl; /* MIBII counters */ struct ETHER_MULTI *pAddrList; /* head of the multicast address list */ int nMulti; /* number of elements in the list */ LIST protocols; /* protocol node list */ BOOL snarfProto; /* is someone snarfing us? */ void* pMemPool; /* memory cookie used by MUX bufr mgr. */ M2_ID* pMib2Tbl; /* RFC 2233 MIB objects */ } END_OBJ; H Your driver must set and manage some of these members. Other members are MUX-managed. To know which are which, read the following member descriptions: node The root of the device hierarchy. The MUX sets the value of this member. Your driver should treat it as opaque. devObject The DEV_OBJ structure for this device. Your driver must set this value at load time. See Tracking Your Device’s Control Structure: DEV_OBJ, p.285. receiveRtn A function pointer that references a muxReceive( ) function. The MUX supplies this pointer by the completion of the muxDevLoad( ) call that loads 283
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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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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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A Upgrading a BSP for Tornado 2.0
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A Upgrading a BSP for Tornado 2.0 6
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B Upgrading a BSP for Tornado 2.2 T
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B Upgrading a BSP for Tornado 2.2 C
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B Upgrading a BSP for Tornado 2.2 c
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B Upgrading a BSP for Tornado 2.2
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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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Page 249 and 250: E Component Language E.1 Component
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Page 265 and 266: F Generic Drivers F.1 Introduction
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I Writing a SCSI-2 Device Driver ;/
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I Writing a SCSI-2 Device Driver I.
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I Writing a SCSI-2 Device Driver re
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I Writing a SCSI-2 Device Driver Fo
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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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