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zfm20: Initial implementation

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This driver implements support for the ZFM20 fingerprint module.  It
was tested on a Grove Fingerprint Sensor.

Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Zion Orent <zorent@ics.com>
Signed-off-by: John Van Drasek <john.r.van.drasek@intel.com>
This commit is contained in:
Jon Trulson
2015-03-30 18:02:08 -06:00
committed by John Van Drasek
parent bdaf952e91
commit 8bf92be1ab
12 changed files with 1818 additions and 0 deletions
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137
examples/javascript/zfm20-register.js Normal file
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/*jslint node:true, vars:true, bitwise:true, unparam:true */
/*jshint unused:true */
/*
* Author: Zion Orent <zorent@ics.com>
* Copyright (c) 2015 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
var fingerprint_lib = require('jsupm_zfm20');
// Instantiate a ZFM20 Fingerprint reader on UART 0
var myFingerprintSensor = new fingerprint_lib.ZFM20(0);
// make sure port is initialized properly. 57600 baud is the default.
if (!myFingerprintSensor.setupTty(fingerprint_lib.int_B57600))
{
console.log("Failed to setup tty port parameters");
process.exit(1);
}
// This example demonstrates registering a fingerprint on the zfm20
// module. The procedure is as follows:
//
// 1. get an image, store it in characteristics buffer 1
// 2. get another image, store it in characteristics buffer 2
// 3. store the image, assuming the two fingerprints match
// first, we need to register our address and password
myFingerprintSensor.setPassword(fingerprint_lib.ZFM20_DEFAULT_PASSWORD);
myFingerprintSensor.setAddress(fingerprint_lib.ZFM20_DEFAULT_ADDRESS);
// now verify the password. If this fails, any other commands
// will be ignored, so we just bail.
if (myFingerprintSensor.verifyPassword())
console.log("Password verified.");
else
{
console.log("Password verification failed.");
process.exit(1);
}
console.log(" ");
// get the first image
console.log("Place a finger on the sensor.");
while (myFingerprintSensor.generateImage() != fingerprint_lib.ZFM20.ERR_OK)
;
// in theory, we have an image
console.log("Image captured, converting...");
var rv = myFingerprintSensor.image2Tz(1);
if (rv != fingerprint_lib.ZFM20.ERR_OK)
{
console.log("Image conversion failed with error code " + rv);
process.exit(1)
}
console.log("Image conversion succeeded, remove finger.");
setTimeout(function()
{
while (myFingerprintSensor.generateImage() != fingerprint_lib.ZFM20.ERR_NO_FINGER)
;
console.log(" ");
console.log("Now place the same finger on the sensor.");
while (myFingerprintSensor.generateImage() == fingerprint_lib.ZFM20.ERR_NO_FINGER)
;
console.log("Image captured, converting...");
// save this one in slot 2
rv = myFingerprintSensor.image2Tz(2)
if (rv != fingerprint_lib.ZFM20.ERR_OK)
{
console.log("Image conversion failed with error code %d" + rv);
process.exit(1);
}
console.log("Image conversion succeeded, remove finger.");
console.log(" ");
console.log("Storing fingerprint at id 1");
// create the model
rv = myFingerprintSensor.createModel()
if (rv != fingerprint_lib.ZFM20.ERR_OK)
{
if (rv == fingerprint_lib.ZFM20.ERR_FP_ENROLLMISMATCH)
console.log("Fingerprints did not match.");
else
console.log("createModel failed with error code " + rv);
process.exit(1);
}
// now store it, we hard code the id (second arg) to 1 here
rv = myFingerprintSensor.storeModel(1, 1);
if (rv != fingerprint_lib.ZFM20.ERR_OK)
{
console.log("storeModel failed with error code " + rv);
process.exit(1);
}
console.log(" ");
console.log("Fingerprint stored at id 1.");
}, 1000);
// Print message when exiting
function exit()
{
myFingerprintSensor = null;
fingerprint_lib.cleanUp();
fingerprint_lib = null;
console.log("Exiting");
process.exit(0);
}
process.on('exit', exit);
process.on('SIGINT', exit);

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examples/javascript/zfm20.js Normal file
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/*jslint node:true, vars:true, bitwise:true, unparam:true */
/*jshint unused:true */
/*
* Author: Zion Orent <zorent@ics.com>
* Copyright (c) 2015 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
var fingerprint_lib = require('jsupm_zfm20');
// Instantiate a ZFM20 Fingerprint reader on UART 0
var myFingerprintSensor = new fingerprint_lib.ZFM20(0);
// make sure port is initialized properly. 57600 baud is the default.
if (!myFingerprintSensor.setupTty(fingerprint_lib.int_B57600))
{
console.log("Failed to setup tty port parameters");
process.exit(1);
}
// how many valid stored templates (fingerprints) do we have?
console.log("Total stored templates: " + myFingerprintSensor.getNumTemplates());
console.log(" ");
// now spin waiting for a fingerprint to successfully image
console.log("Waiting for finger print...");
while (myFingerprintSensor.generateImage() == fingerprint_lib.ZFM20.ERR_NO_FINGER)
;
// in theory, we have an image
console.log("Image captured, converting...");
var rv = myFingerprintSensor.image2Tz(1);
if (rv != fingerprint_lib.ZFM20.ERR_OK)
{
console.log("Image conversion failed with error code " + rv);
process.exit(1);
}
console.log("Image conversion succeeded.");
console.log("Searching database...");
var myid = new fingerprint_lib.uint16Array(0);
myid.setitem(0, 0);
var myscore = new fingerprint_lib.uint16Array(0);
myscore.setitem(0, 0);
// we search for a print matching slot 1, where we stored our last
// converted fingerprint
rv = myFingerprintSensor.search(1, myid, myscore)
if (rv != fingerprint_lib.ZFM20.ERR_OK)
{
if (rv == fingerprint_lib.ZFM20.ERR_FP_NOTFOUND)
{
console.log("Finger Print not found");
process.exit(0);
}
else
{
console.log("Search failed with error code " + rv);
process.exit(1);
}
}
console.log("Fingerprint found!");
console.log("ID: " + myid.getitem(0) + ", Score: " + myscore.getitem(0));
// Print message when exiting
function exit()
{
myFingerprintSensor = null;
fingerprint_lib.cleanUp();
fingerprint_lib = null;
console.log("Exiting");
process.exit(0);
}
process.on('SIGINT', exit);
process.on('exit', exit);