Sun Microsystems CP2500 manual Sample User Flash Application Program

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Sample User Flash Application Program

You can use the following program to test the user flash device and driver. This program also demonstrates how this device can be used.

CODE EXAMPLE 3-6Sample User Flash Application Program

/*

*

*This application program demonstrates the user program

*interface to the User Flash PROM driver.

*

*One can read or write a number of bytes up to the size of

*the user PROM by means of pread() and pwrite() calls.

*All other functions of the PROM can be accessed by

*means of ioctl() calls such as:

*-) identify the chip,

*-) query block,

*-) lock block/unlock block,

*-) erase block

*Please note that not all of the above ioctl calls are

*available for all flash PROMs. It is the user’s

*responsibility to find out the features of a given PROM.

*The type, block size, and number of blocks of the PROM

*are returned by "identify" ioctl().

*

*The pwrite() erases the block[s] and then does the

*writing.

*

*Use the following line to compile your custom application

*programs:

*make uflash_test

*/

#pragma ident "@(#)uflash_test.c 1.0

03/04/30 SMI"

#include <stdio.h> #include <sys/signal.h> #include <stdio.h> #include <sys/time.h> #include <errno.h> #include <sys/types.h> #include <sys/fcntl.h> #include <sys/stream.h> #include "uflash_if.h" /*

*/

Chapter 3 User Flash 53

Image 67

Contents Netra CP2500 Board Programming Guide Page Contents User Flash Figures Vi Netra CP2500 Board Programming Guide March Tables Viii Netra CP2500 Board Programming Guide March Code Samples Netra CP2500 Board Programming Guide March How This Book Is Organized PrefaceTypographic Conventions Using Unix CommandsRelated Documentation Shell PromptsThird-Party Web Sites Documentation, Support, and TrainingSun Welcomes Your Comments Overview Watchdog TimerPicl Plug-In Module 2Properties Under watchdog-controllerNode 1Watchdog Plug-In Interfaces for Netra CP2500 Board SoftwareHEALTHY# 3Properties Under watchdog-timerNodeCode Example 1-1System Watchdog Node Management Code Example Watchdog Node Management CodeCode Example 1-1System Watchdog Node Management Code Example Usagestr Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Null Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Notreached Code Example 1-1System Watchdog Node Management Code Example OpenBoot Prom Interface Netra CP2500 Board Programming Guide March Environmental Monitoring Typical Environmental Monitoring System Application Environmental Monitoring Component Compatibility1Compatible Environmental Monitoring Components I2C Environmental Monitoring Protection at the OpenBoot Prom Typical Cycle From Power Up to ShutdownPost Shutdown Recovery 3I2C Components Hardware Environmental Monitoring FunctionsEnvironmental Monitoring CPU Inlet, Exhaust, and CPU Temperature Monitoring Switching Power On and OffNetra CP2500 Board Programming Guide March Critical Temperature Response at OpenBoot Prom OpenBoot Prom Environmental MonitoringEnvironmental Monitoring Application Programming Using the show-sensorsCommand at OpenBoot Prom4PICL Temperature Sensor Class Node Properties Reading Temperature Sensor States UsingSolaris Driver Interface Using a Configuration File for Sensor InformationCode Example 2-1Sample envmond Application Program Sample Application ProgramCode Example 2-1Sample envmond Application Program Code Example 2-1Sample envmond Application Program Code Example 2-1Sample envmond Application Program Prtdiag command example Reading the CPU Temperature Environmental Limits5Description of Values Displayed by Solaris Commands User Flash Usage and Implementation User FlashUser Flash Driver OpenBoot Prom Device Tree and Properties1User Flash Node Properties 2System Calls Application Programming InterfaceUser Flash Device Files Interface Header FileCode Example 3-1PROM Information Structure Structures to Use in Ioctl ArgumentsExample Programs ErrorsCode Example 3-2User Flash Interface Structure Code Example 3-3Read Action on User Flash Device Read Example ProgramCode Example 3-4Write Action on User Flash Device Write Example ProgramCode Example 3-4Write Action on User Flash Device Code Example 3-5Block Erase Action on User Flash Device Block Erase Example ProgramCode Example 3-5Block Erase Action on User Flash Device Code Example 3-6Sample User Flash Application Program Sample User Flash Application ProgramCode Example 3-6Sample User Flash Application Program Code Example 3-6Sample User Flash Application Program Code Example 3-6Sample User Flash Application Program Code Example 3-6Sample User Flash Application Program Code Example 3-6Sample User Flash Application Program Picl IndexWatchdog-controller, 3 Watchdog-timer, 3