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ZTEX |
/*!
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flashbench -- Flash memory benchmark for ZTEX USB Module 1.0
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Copyright (C) 2009-2014 ZTEX GmbH.
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http://www.ztex.de
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 3 as
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published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see http://www.gnu.org/licenses/.
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!*/
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import java.io.*;
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import java.util.*;
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import ch.ntb.usb.*;
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import ztex.*;
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// *****************************************************************************
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// ******* ParameterException **************************************************
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// *****************************************************************************
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// Exception the prints a help message
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class ParameterException extends Exception {
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public final static String helpMsg = new String (
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"Parameters:\n"+
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" -d <number> Device Number (default: 0)\n" +
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" -s <number> Number of sectors to be tested, -1 means all (default: 10000)\n" +
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" -f Force uploads\n" +
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" -p Print bus info\n" +
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" -w Enable certain workarounds which may be required for vmware + windows\n"+
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" -h This help" );
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public ParameterException (String msg) {
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super( msg + "\n" + helpMsg );
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}
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}
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// *****************************************************************************
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// ******* Test0 ***************************************************************
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// *****************************************************************************
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class FlashBench extends Ztex1v1 {
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// ******* FlashBench **********************************************************
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// constructor
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public FlashBench ( ZtexDevice1 pDev ) throws UsbException {
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super ( pDev );
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}
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// ******* testRW **************************************************************
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// measures read + write performance
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public double testRW ( int num ) throws UsbException, InvalidFirmwareException, CapabilityException {
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int secNum = 2048 / flashSectorSize();
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byte[] buf1 = new byte[flashSectorSize() * secNum];
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byte[] buf2 = new byte[flashSectorSize() * secNum];
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int errors = 0;
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long t0 = new Date().getTime();
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for ( int i=0; i<num; i+=secNum ) {
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int l = Math.min(num-i,secNum);
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int j=(int) Math.round(65535*Math.random());
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for (int k=0; k<flashSectorSize()*l; k++) {
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buf1[k] = (byte) (j & 255);
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j+=57;
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}
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System.out.print("Sector " + (i+l) + "/" + num+ " " + Math.round(10000.0*(i+1)/num)/100.0 + "% \r");
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flashWriteSector(i,l,buf1);
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flashReadSector(i,l,buf2);
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int diffs=flashSectorSize()*l;
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for (int k=0; k<flashSectorSize()*l; k++)
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if ( buf1[k] == buf2[k] )
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diffs -= 1;
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if ( diffs!=0 /*&& errors==0 */) {
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System.out.println("Error occured at sector " + i +": " + diffs + " differences");
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}
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if ( diffs!=0 )
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errors+=1;
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}
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System.out.println("testRW: " + errors +" errors detected");
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return num*flashSectorSize()*1.0/(new Date().getTime() - t0);
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}
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// ******* testW **************************************************************
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// measures write performance
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public double testW ( int num, int seed ) throws UsbException, InvalidFirmwareException, CapabilityException {
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int secNum = 2048 / flashSectorSize();
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byte[] buf = new byte[flashSectorSize() * secNum];
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long t0 = new Date().getTime();
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for ( int i=0; i<num; i+=secNum ) {
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int j = Math.min(num-i,secNum);
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System.out.print("Sector " + (i+j) + "/" + num+ " " + Math.round(10000.0*(i+1)/num)/100.0 + "% \r");
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for (int k=0; k<flashSectorSize()*j; k++) {
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buf[k] = (byte) (seed & 255);
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seed+=79;
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}
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flashWriteSector(i,j,buf);
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}
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return num*flashSectorSize()*1.0/(new Date().getTime() - t0);
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}
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// ******* testR **************************************************************
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// measures read performance
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public double testR ( int num, int seed ) throws UsbException, InvalidFirmwareException, CapabilityException {
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int secNum = 2048 / flashSectorSize();
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byte[] buf = new byte[flashSectorSize() * secNum];
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int errors = 0;
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long t0 = new Date().getTime();
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for ( int i=0; i<num; i+=secNum ) {
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int j = Math.min(num-i,secNum);
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System.out.print("Sector " + (i+j) + "/" + num+ " " + Math.round(10000.0*(i+1)/num)/100.0 + "% \r");
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flashReadSector(i,j,buf);
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int diffs = flashSectorSize()*j;
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for (int k=0; k<flashSectorSize()*j; k++) {
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if ( buf[k] == (byte) (seed & 255) )
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diffs-=1;
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seed+=79;
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}
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if ( diffs!=0 && errors==0 ) {
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System.out.println("Error occured at sector " + i +": " + diffs + " differences");
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}
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if ( diffs!=0 )
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errors+=1;
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}
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System.out.println("testR: " + errors +" errors detected");
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return num*flashSectorSize()*1.0/(new Date().getTime() - t0);
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}
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// ******* main ****************************************************************
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public static void main (String args[]) {
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int devNum = 0;
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boolean force = false;
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boolean workarounds = false;
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int sectors = 10000;
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try {
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// init USB stuff
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LibusbJava.usb_init();
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// scan the USB bus
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ZtexScanBus1 bus = new ZtexScanBus1( ZtexDevice1.ztexVendorId, ZtexDevice1.ztexProductId, true, false, 1);
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if ( bus.numberOfDevices() <= 0) {
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System.err.println("No devices found");
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System.exit(0);
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}
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// scan the command line arguments
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for (int i=0; i<args.length; i++ ) {
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if ( args[i].equals("-d") ) {
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i++;
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try {
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if (i>=args.length) throw new Exception();
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devNum = Integer.parseInt( args[i] );
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}
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catch (Exception e) {
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throw new ParameterException("Device number expected after -d");
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}
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}
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if ( args[i].equals("-s") ) {
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i++;
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try {
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if (i>=args.length) throw new Exception();
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sectors = Integer.parseInt( args[i] );
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}
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catch (Exception e) {
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throw new ParameterException("Number of sectors expected after -s");
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}
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}
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else if ( args[i].equals("-f") ) {
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force = true;
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}
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else if ( args[i].equals("-p") ) {
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bus.printBus(System.out);
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System.exit(0);
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}
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else if ( args[i].equals("-p") ) {
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bus.printBus(System.out);
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System.exit(0);
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}
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else if ( args[i].equals("-w") ) {
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workarounds = true;
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}
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else if ( args[i].equals("-h") ) {
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System.err.println(ParameterException.helpMsg);
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System.exit(0);
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}
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else throw new ParameterException("Invalid Parameter: "+args[i]);
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}
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// create the main class
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FlashBench ztex = new FlashBench ( bus.device(devNum) );
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ztex.certainWorkarounds = workarounds;
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// upload the firmware if necessary
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if ( force || ! ztex.valid() || ! ztex.dev().productString().equals("flashbench for UM 1.0") ) {
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System.out.println("Firmware upload time: " + ztex.uploadFirmware( "flashbench.ihx", force ) + " ms");
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}
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// print some information
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System.out.println("Capabilities: " + ztex.capabilityInfo(", "));
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System.out.println("Enabled: " + ztex.flashEnabled());
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System.out.println("Size: " + ztex.flashSize()+" Bytes");
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// ztex.printMmcState();
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if ( sectors<1 || sectors>ztex.flashSectors() ) sectors = ztex.flashSectors();
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System.out.println("Read + Write Performance: " + ztex.testRW(sectors) + "kb/s \n");
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int seed = (int) Math.round(65535*Math.random());
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System.out.println("Write Performance: " + ztex.testW(sectors, seed) + "kb/s ");
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System.out.println("Read Performance: " + ztex.testR(sectors, seed) + "kb/s \n");
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}
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catch (Exception e) {
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System.out.println("Error: "+e.getLocalizedMessage() );
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}
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}
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}
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