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Subversion Repositories usb_fpga_2_14

[/] [usb_fpga_2_14/] [trunk/] [examples/] [flashbench/] [FlashBench.java] - Blame information for rev 2

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1 2 ZTEX 
/*%
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   flashbench -- Flash memory benchmark
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   Copyright (C) 2009-2017 ZTEX GmbH.
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   http://www.ztex.de
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   Licensed under the Apache License, Version 2.0 (the "License");
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   you may not use this file except in compliance with the License.
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   You may obtain a copy of the License at
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       http://www.apache.org/licenses/LICENSE-2.0
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   Unless required by applicable law or agreed to in writing, software
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   distributed under the License is distributed on an "AS IS" BASIS,
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   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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   See the License for the specific language governing permissions and
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   limitations under the License.
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%*/
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19 
import java.io.*;
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import java.util.*;
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import java.nio.*;
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import org.usb4java.*;
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25 
import ztex.*;
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27 
// *****************************************************************************
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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 (64 KByte sector default: 16; 512 Bytes sector default: 8192)\n" +
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                "    -w            Perform write tests (may destroy data)\n" +
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                "    -1            Test primary flash (default if no secondary Flash available\n" +
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                "    -2            Test secondary Flash  (default if available)\n" +
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                "    -p            Print bus info\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 int testRW (boolean secondary, int num ) throws UsbException, InvalidFirmwareException, CapabilityException {
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        int flashSectorSize = secondary ? flash2SectorSize() : flashSectorSize();
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        int secNum = Math.max(1, 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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        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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            for (int k=0; k<flashSectorSize*l; k++) {
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                buf1[k] = (byte) (int) Math.floor(256.0*Math.random());
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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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            if ( secondary ) {
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                flash2WriteSector(i,l,buf1);
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                flash2ReadSector(i,l,buf2);
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            } else {
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                flashWriteSector(i,l,buf1);
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                flashReadSector(i,l,buf2);
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            }
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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 ) {
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                System.out.println("Error occured at sector " + i +": " + diffs + " differences");
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            }
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        }
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        return (int) Math.round(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 int testW (boolean secondary,  int num, byte[] backup ) throws UsbException, InvalidFirmwareException, CapabilityException {
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        int flashSectorSize = secondary ? flash2SectorSize() : flashSectorSize();
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        int secNum = Math.max(1, 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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            System.arraycopy(backup,flashSectorSize*i, buf,0, flashSectorSize*j);
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            if ( secondary ) flash2WriteSector(i,j,buf);
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            else flashWriteSector(i,j,buf);
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        }
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        return (int) Math.round(num*flashSectorSize*1.0/(new Date().getTime() - t0));
109 
    }
110 
 
111 
// ******* testR **************************************************************
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// measures read performance
113 
    public int testR (boolean secondary,  int num, boolean verify, byte[] backup ) throws UsbException, InvalidFirmwareException, CapabilityException {
114 
        int flashSectorSize = secondary ? flash2SectorSize() : flashSectorSize();
115 
        int secNum = Math.max(1, 2048 / flashSectorSize );
116 
        byte[] buf = new byte[flashSectorSize * secNum];
117 
        int errors = 0;
118 
        long t0 = new Date().getTime();
119 
        for ( int i=0; i<num; i+=secNum ) {
120 
            int j = Math.min(num-i,secNum);
121 
            System.out.print("Sector " + (i+j) + "/" + num+ "  " + Math.round(10000.0*(i+1)/num)/100.0 + "%    \r");
122 
            if ( secondary ) flash2ReadSector(i,j,buf);
123 
            else flashReadSector(i,j,buf);
124 
            if ( backup != null ) {
125 
                if ( verify ) {
126 
                    int diffs = flashSectorSize*j;
127 
                    int l = flashSectorSize * i;
128 
                    for (int k=0; k<flashSectorSize*j; k++)
129 
                        if ( buf[k] == backup[flashSectorSize*i+k] ) diffs-=1;
130 
                    if ( diffs!=0 ) System.out.println("Error occured at sector " + i +": " + diffs + " differences");
131 
                }
132 
                else {
133 
                    System.arraycopy(buf,0, backup,flashSectorSize*i, flashSectorSize*j);
134 
                }
135 
            }
136 
        }
137 
        return (int) Math.round(num*flashSectorSize*1.0/(new Date().getTime() - t0));
138 
    }
139 
 
140 
// ******* main ****************************************************************
141 
    public static void main (String args[]) {
142 
 
143 
        int devNum = 0;
144 
        int sectors = 0;
145 
        boolean flash1 = false, have1 = false;
146 
        boolean flash2 = false, have2 = false;
147 
        boolean writeTests = false;
148 
 
149 
        if ( ! System.getProperty("os.name").equalsIgnoreCase("linux") ) {
150 
            Runtime.getRuntime().addShutdownHook(new Thread() {
151 
                public void run() {
152 
                    Scanner s=new Scanner(System.in);
153 
                    System.out.println("Press <enter> to continue ...");
154 
                    s.nextLine();
155 
                }
156 
            });
157 
        }
158 
 
159 
        try {
160 
// Scan the USB. This also creates and initializes a new USB context.
161 
            ZtexScanBus1 bus = new ZtexScanBus1( ZtexDevice1.ztexVendorId, ZtexDevice1.ztexProductId, true, false, 1);
162 
 
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// scan the command line arguments
164 
            for (int i=0; i<args.length; i++ ) {
165 
                if ( args[i].equals("-d") ) {
166 
                    i++;
167 
                    try {
168 
                        if (i>=args.length) throw new Exception();
169 
                        devNum = Integer.parseInt( args[i] );
170 
                    }
171 
                    catch (Exception e) {
172 
                        throw new ParameterException("Device number expected after -d");
173 
                    }
174 
                }
175 
                if ( args[i].equals("-s") ) {
176 
                    i++;
177 
                    try {
178 
                        if (i>=args.length) throw new Exception();
179 
                        sectors = Integer.parseInt( args[i] );
180 
                    }
181 
                    catch (Exception e) {
182 
                        throw new ParameterException("Number of sectors expected after -s");
183 
                    }
184 
                }
185 
                else if ( args[i].equals("-1") ) {
186 
                    flash1 = true;
187 
                }
188 
                else if ( args[i].equals("-2") ) {
189 
                    flash2 = true;
190 
                }
191 
                else if ( args[i].equals("-w") ) {
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                    writeTests = true;
193 
                }
194 
                else if ( args[i].equals("-p") ) {
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                    bus.printBus(System.out);
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                    System.exit(0);
197 
                }
198 
                else if ( args[i].equals("-h") ) {
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                    System.err.println(ParameterException.helpMsg);
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                    System.exit(0);
201 
                }
202 
                else throw new ParameterException("Invalid Parameter: "+args[i]);
203 
            }
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205 
 
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// create the main class
207 
            if ( bus.numberOfDevices() <= 0) {
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                System.err.println("No devices found");
209 
                System.exit(0);
210 
            }
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            FlashBench ztex = new FlashBench ( bus.device(devNum) );
212 
            bus.unref();
213 
 
214 
// print some information
215 
            System.out.println("Capabilities: " + ztex.capabilityInfo(", "));
216 
 
217 
            if ( ztex.InterfaceCapabilities(CAPABILITY_FLASH) ) {
218 
                System.out.println("Primary Flash enabled: " + ztex.flashEnabled());
219 
                System.out.println("Primary Flash sector size: " + ztex.toHumanStr(ztex.flashSectorSize())+" Bytes");
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                System.out.println("Primary Flash size: " + ztex.toHumanStr(ztex.flashSize())+" Bytes");
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            }
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223 
            if ( ztex.InterfaceCapabilities(CAPABILITY_FLASH2) ) {
224 
                System.out.println("Secondary Flash enabled: " + ztex.flash2Enabled());
225 
                System.out.println("Secondary Flash sector size: " + ztex.toHumanStr(ztex.flash2SectorSize())+" Bytes");
226 
                System.out.println("Secondary Flash size: " + ztex.toHumanStr(ztex.flash2Size())+" Bytes");
227 
                if ( !flash1 ) flash2 = true;
228 
            }
229 
            else if ( !flash2 ) flash1 = true;
230 
 
231 
// primary flash test
232 
            if ( flash1 && ztex.InterfaceCapabilities(CAPABILITY_FLASH) && ztex.flashEnabled() ) {
233 
                System.out.println("Testing Primary Flash ...");
234 
                int s = sectors > 1 ? sectors : ztex.flashSectorSize() > 1024 ? 16 : 8192;
235 
                if (s > ztex.flashSectors() ) s = ztex.flashSectors();
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                byte[] backup = writeTests ? new byte[s*ztex.flashSectorSize()] : null;
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                System.out.println("Read Performance: " + ztex.testR(false, s, false, backup) + " kb/s     ");
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                if ( writeTests ) {
239 
                    System.out.println("Read + Write Performance: " + ztex.testRW(false, s) + " kb/s      ");
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                    System.out.println("Write Performance: " + ztex.testW(false, s, backup) + " kb/s      ");
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                    System.out.println("Read Performance: " + ztex.testR(false, s, true, backup) + " kb/s     ");
242 
                }
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            }
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245 
// secondary flash test
246 
            if ( flash2 && ztex.InterfaceCapabilities(CAPABILITY_FLASH2) && ztex.flash2Enabled() ) {
247 
                System.out.println("Testing Secondary Flash ...");
248 
                int s = sectors > 1 ? sectors : ztex.flash2SectorSize() > 1024 ? 16 : 8192;
249 
                if (s > ztex.flash2Sectors() ) s = ztex.flash2Sectors();
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                byte[] backup = writeTests ? new byte[s*ztex.flash2SectorSize()] : null;
251 
                System.out.println("Read Performance: " + ztex.testR(true, s, false, backup) + " kb/s     ");
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                if ( writeTests ) {
253 
                    System.out.println("Read + Write Performance: " + ztex.testRW(true, s) + " kb/s      ");
254 
                    System.out.println("Write Performance: " + ztex.testW(true, s, backup) + " kb/s      ");
255 
                    System.out.println("Read Performance: " + ztex.testR(true, s, true, backup) + " kb/s     ");
256 
                }
257 
            }
258 
 
259 
// release resources
260 
            ztex.dispose();
261 
 
262 
        }
263 
        catch (Exception e) {
264 
            System.out.println("Error: "+e.getLocalizedMessage() );
265 
        }
266 
   }
267 
 
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}

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