BSP Developer's Guide

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VxWorks 5.5 BSP Developer’s Guide int (*pollInput) int (*pollOutput) }; SIO_CHAN * int STATUS void * ); ( SIO_CHAN * char * ( SIO_CHAN * char outChar ); pSioChan, callbackType, (*callback)(), callbackArg pSioChan, inChar); pSioChan, The members of the SIO_DRV_FUNCS structure function as follows: ioctl Points to the standard I/O control interface function for the driver. This function provides the primary control interface for any driver. To access the I/O control services for a standard SIO device, use the following symbolic constants: SIO_BAUD_SET SIO_BAUD_GET SIO_HW_OPTS_SET SIO_HW_OPTS_GET SIO_MODE_SET SIO_MODE_GET SIO_AVAIL_MODES_GET SIO_OPEN SIO_HUP Set a new baud rate. Get the current baud rate. Set new hardware settings. Get current hardware settings. Set a new operating mode. Get the current mode. Get available modes. Open a channel. Close a channel. txStartup Provides a pointer to the function that the system calls when new data is available for transmission. Typically, this routine is called only from the ttyDrv.o module. This module provides a higher level of functionality that makes a raw serial channel behave with line control and canonical character processing). callbackInstall Provides the driver with pointers to callback functions that the driver can call asynchronously to handle character puts and gets. The driver is responsible for saving the callback routines and arguments that it receives from the callbackInstall( ) function.The available callbacks are SIO_CALLBACK_GET_TX_CHAR and SIO_CALLBACK_PUT_RCV_CHAR. 250
F Generic Drivers Define SIO_CALLBACK_GET_TX_CHAR to point to a function that fetches a new character for output. The driver calls this callback routine with the supplied argument and an additional argument that is the address to receive the new output character if any. The called function returns OK to indicate that a character was delivered, or ERROR to indicate that no more characters are available. Define SIO_CALLBACK_PUT_RCV_CHAR to point to a function the driver can use to send characters upward. For each incoming character, the callback routine is called with the supplied argument, and the new character as a second argument. Drivers normally do not care about the return value from this call. There is usually nothing that the driver could do but to drop a character if the higher level is not able to receive it. pollInput and pollOutput Provide an interface to polled mode operations of the driver. Do not call these functions unless the device has already been placed into polled mode operation by an SIO_MODE_SET operation. See target/src/drv/sio/templateSio.c for more information on the internal workings of a typical SIO device driver. F.4 Timer F The generic timer drivers reside in the directory target/src/drv/timer. Included in this directory is templateTimer.c. When writing a timer driver, base the driver on this template, then modify the BSP’s sysLib.c file to include the driver as needed.If a BSP has access to only a single timer, that BSP must support the system clock and not the auxiliary clock. This means that sysAuxClkConnect( ) must return ERROR. The following macros are used for parameter checking in VxWorks timer drivers, and must be defined in each BSP’s bspname.h file: SYS_CLK_RATE_MIN Defines the minimum rate at which the system clock can run. Unless hardware constraints dictate otherwise, SYS_CLK_RATE_MIN must be less than or equal to 60 Hz. 251
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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 ■ 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 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 8.2 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 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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Page 265 and 266: F Generic Drivers F.1 Introduction
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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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J BSP Validation Test Suite Referen
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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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