SMSTester.m

/*
 * SMSTester.m
 * smslib test class
 *
 * SMSLib Sudden Motion Sensor Access Library
 * Copyright (c) 2010 Suitable Systems
 * All rights reserved.
 * 
 * Developed by: Daniel Griscom
 *               Suitable Systems
 *               http://www.suitable.com
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal with 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:
 * 
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimers.
 * 
 * - Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimers in the
 * documentation and/or other materials provided with the distribution.
 * 
 * - Neither the names of Suitable Systems nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this Software without specific prior written permission.
 * 
 * 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 CONTRIBUTORS 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 WITH THE SOFTWARE.
 *
 * For more information about SMSLib, see
 *		<http://www.suitable.com/tools/smslib.html>
 * or contact
 *		Daniel Griscom
 *		Suitable Systems
 *		1 Centre Street, Suite 204
 *		Wakefield, MA 01880
 *		(781) 665-0053
 *
 */

#include <CoreFoundation/CoreFoundation.h>
#include <IOKit/IOKitLib.h>
#import "smslib.h"
#import "SMSTester.h"

@implementation SMSTester

// Log callback function used while starting up accelerometer
- (void)logMessage: (NSString *)theString {
	[log appendString:theString];
}

- (int)test {
	int i, length, result;
	log = [[NSMutableString alloc] init];
	
	[log appendString:@"\n========== SMSTest Report ==========\n"];
			
	// Start up SMS access
	result = smsStartup(self, @selector(logMessage:));
	if (result != SMS_SUCCESS) {
		// Couldn't start calibration.
		[log appendString:@"\n========== end ==========\n"];
		printf([log cString]);
		NSLog(log);
		return result;
	}
	
	// Fetch and display raw data
	[log appendString:@"\nRaw data:"];
	length = smsGetBufferLength();
	char *buffer = malloc(length);
	smsGetBufferData(buffer);
	for (i = 0; i < length; i++) {
		if (i % 16 == 0) {
			[log appendString:@"\n"];
		}
		[log appendString:[NSString stringWithFormat:@"%02.2hhx ", buffer[i]]];
	}
	[log appendString:@"\n\n"];
	
	// Load calibration
	[log appendString:@"Loading any saved calibration: "];
	if (smsLoadCalibration()) {
		[log appendString:@"success.\n\n"];
	} else {
		[log appendString:@"no saved calibration.\n\n"];
	}
	
	// Fetch and display calibration
	[log appendString:smsGetCalibrationDescription()];
	
	// Fetch and display one sample of calibrated acceleration
	[log appendString:@"\nFetching calibrated data: "];
	result = smsGetData(&accel);
	if (result != SMS_SUCCESS) {
		[log appendString:@"failed.\n"];
		[log appendString:@"\n========== end ==========\n"];
		printf([log cString]);
		NSLog(log);
		return result;
	}
	[log appendString:@"success.\n"];
	[log appendString:[NSString stringWithFormat:@"    X axis:%f\n", accel.x]];
	[log appendString:[NSString stringWithFormat:@"    Y axis:%f\n", accel.y]];
	[log appendString:[NSString stringWithFormat:@"    Z axis:%f\n", accel.z]];
	
	[log appendString:@"\n========== end ==========\n"];
	printf([log cString]);
	return 0;
}

@end