/*
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* Copyright Cypress Semiconductor Corporation, 2014-2015 All rights reserved.
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*
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* This software, associated documentation and materials ("Software") is
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* owned by Cypress Semiconductor Corporation ("Cypress") and is
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* protected by and subject to worldwide patent protection (UnitedStates and foreign), United States copyright laws and international
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* treaty provisions. Therefore, unless otherwise specified in a separate license agreement between you and Cypress, this Software
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* must be treated like any other copyrighted material. Reproduction,
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* modification, translation, compilation, or representation of this
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* Software in any other form (e.g., paper, magnetic, optical, silicon)
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* is prohibited without Cypress's express written permission.
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*
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* Disclaimer: THIS SOFTWARE IS PROVIDED AS-IS, WITH NO WARRANTY OF ANY
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* KIND, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
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* NONINFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes
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* to the Software without notice. Cypress does not assume any liability
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* arising out of the application or use of Software or any product or
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* circuit described in the Software. Cypress does not authorize its
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* products for use as critical components in any products where a
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* malfunction or failure may reasonably be expected to result in
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* significant injury or death ("High Risk Product"). By including
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* Cypress's product in a High Risk Product, the manufacturer of such
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* system or application assumes all risk of such use and in doing so
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* indemnifies Cypress against all liability.
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*
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* Use of this Software may be limited by and subject to the applicable
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* Cypress software license agreement.
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*
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*
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*/
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#import "FindMeModel.h"
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/*!
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* @class FindMeModel
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*
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* @discussion Class to handle the link loss, immediete alert and transmission power related operations
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*
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*/
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@interface FindMeModel ()<cbCharacteristicManagerDelegate>
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{
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void(^cbCharacteristicDiscoverHandler)(CBService *foundService,BOOL success, NSError *error);
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void(^cbTransmissionPowerCharacteristicHandler)(BOOL success, NSError *error);
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void(^cbLinkLossCharacteristicHandler)(BOOL success, NSError *error);
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void(^cbImmedieteAlertCharacteristicHandler)(BOOL success, NSError *error);
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CBCharacteristic *transmissionPowerCharacteristic;
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CBCharacteristic *linkLossCharacteristic;
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}
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@end
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@implementation FindMeModel
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/*!
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* @method startDiscoverChar:
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*
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* @discussion Discovers the specified characteristics of a service..
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*/
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-(void)startDiscoverCharacteristicsForService:(CBService *)service withCompletionHandler:(void (^) (CBService *foundService,BOOL success, NSError *error))handler
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{
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cbCharacteristicDiscoverHandler = handler;
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[[CBMoralManager sharedManager] setCbCharacteristicDelegate:self];
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[[[CBMoralManager sharedManager] myPeripheral] discoverCharacteristics:nil forService:service];;
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}
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/*!
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* @method updateProximityCharacteristicWithHandler:WithHandler
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*
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* @discussion Write value to a specified characteristic.
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*/
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-(void)updateProximityCharacteristicWithHandler:(void (^) (BOOL success, NSError *error))handler
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{
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cbTransmissionPowerCharacteristicHandler = handler;
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[self logFindMeDataWithService:transmissionPowerCharacteristic.service characteristic:transmissionPowerCharacteristic data:READ_REQUEST];
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[[[CBMoralManager sharedManager] myPeripheral] readValueForCharacteristic:transmissionPowerCharacteristic];
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}
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/*!
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* @method updateLinkLossCharacteristicValue:WithHandler
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*
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* @discussion Write value to a specified characteristic.
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*/
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-(void)updateLinkLossCharacteristicValue:(enum alertOptions)option WithHandler:(void (^) (BOOL success, NSError *error))handler
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{
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cbLinkLossCharacteristicHandler = handler;
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uint8_t val = option; // The value which you want to write.
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NSData* valData = [NSData dataWithBytes:(void*)&val length:sizeof(val)];
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[self logFindMeDataWithService:linkLossCharacteristic.service characteristic:linkLossCharacteristic data:[NSString stringWithFormat:@"%@%@ %@",WRITE_REQUEST,DATA_SEPERATOR,[Utilities convertDataToLoggerFormat:valData]]];
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[[[CBMoralManager sharedManager] myPeripheral] writeValue:valData forCharacteristic:linkLossCharacteristic type:CBCharacteristicWriteWithResponse];
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}
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/*!
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* @method updateImmedieteALertCharacteristicValue:WithHandler
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*
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* @discussion Write value to a specified characteristic.
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*/
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-(void)updateImmedieteALertCharacteristicValue:(enum alertOptions)option WithHandler:(void (^) (BOOL success, NSError *error))handler
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{
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cbImmedieteAlertCharacteristicHandler = handler;
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uint8_t val = option; // The value which you want to write.
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NSData* valData = [NSData dataWithBytes:(void*)&val length:sizeof(val)];
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[[[CBMoralManager sharedManager] myPeripheral] writeValue:valData forCharacteristic:_immediateAlertCharacteristic type:CBCharacteristicWriteWithoutResponse];
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[self logFindMeDataWithService:_immediateAlertCharacteristic.service characteristic:_immediateAlertCharacteristic data:[NSString stringWithFormat:@"%@%@ %@",WRITE_REQUEST,DATA_SEPERATOR,[Utilities convertDataToLoggerFormat:valData]]];
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cbImmedieteAlertCharacteristicHandler(YES,nil);
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}
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/*!
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* @method stopUpdate
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*
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* @discussion Stop notifications or indications for the value of a specified characteristic.
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*/
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-(void)stopUpdate
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{
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cbTransmissionPowerCharacteristicHandler = nil;
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cbLinkLossCharacteristicHandler = nil;
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cbImmedieteAlertCharacteristicHandler = nil;
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}
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#pragma mark - CBCharacteristicManagerDelegate
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/*!
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* @method peripheral: didDiscoverCharacteristicsForService: error:
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*
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* @discussion Method invoked when characteristics are discovered for a service
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*
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*/
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-(void) peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error
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{
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if ([service.UUID isEqual:TRANSMISSION_POWER_SERVICE]|[service.UUID isEqual:LINK_LOSS_SERVICE_UUID] | [service.UUID isEqual:IMMEDIATE_ALERT_SERVICE_UUID])
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{
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/* Read the Tx Power Level characteristic which represents the current transmit power level of a physical layer from the characteristic .
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*/
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if ([service.UUID isEqual:TRANSMISSION_POWER_SERVICE])
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{
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for (CBCharacteristic *aChar in service.characteristics)
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{
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if ([aChar.UUID isEqual:TRANSMISSION_POWER_LEVEL_UUID])
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{
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transmissionPowerCharacteristic = aChar;
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_isTransmissionPowerPresent = YES;
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}
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}
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}
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/*
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Read the Alert Level from characteristic, which is used to expose the current link loss alert level that is used to determine how the device alerts when the link is lost.
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*/
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if ([service.UUID isEqual:LINK_LOSS_SERVICE_UUID])
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{
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for (CBCharacteristic *aChar in service.characteristics)
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{
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if ([aChar.UUID isEqual:ALERT_CHARACTERISTIC_UUID])
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{
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linkLossCharacteristic = aChar;
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_isLinkLossServicePresent = YES;
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}
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}
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}
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/* Read the Alert Level from characteristic, which is a control point that allows a peer to command this device to alert to a given leve
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*/
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if ([service.UUID isEqual:IMMEDIATE_ALERT_SERVICE_UUID])
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{
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for (CBCharacteristic *aChar in service.characteristics)
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{
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if ([aChar.UUID isEqual:ALERT_CHARACTERISTIC_UUID])
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{
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_immediateAlertCharacteristic = aChar;
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_isImmediateAlertServicePresent = YES;
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}
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}
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}
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if (_isImmediateAlertServicePresent || _isLinkLossServicePresent || _isTransmissionPowerPresent)
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{
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cbCharacteristicDiscoverHandler(service,YES,nil);
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}
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else
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{
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cbCharacteristicDiscoverHandler(service, NO,error);
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}
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}
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else
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cbCharacteristicDiscoverHandler(service,NO,error);
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}
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/*!
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* @method peripheral: didUpdateValueForCharacteristic: error:
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*
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* @discussion Method invoked when the characteristic value changes
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*
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*/
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-(void) peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error
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{
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if ([characteristic.UUID isEqual:transmissionPowerCharacteristic.UUID])
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{
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NSData *data = [characteristic value];
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SInt8 *dataPointer = (SInt8 *)[data bytes];
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_transmissionPowerValue = dataPointer[0];
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// Data logging
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[self logFindMeDataWithService:transmissionPowerCharacteristic.service characteristic:transmissionPowerCharacteristic data:[NSString stringWithFormat:@"%@%@ %@",READ_RESPONSE,DATA_SEPERATOR,[Utilities convertDataToLoggerFormat:data]]];
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if (cbTransmissionPowerCharacteristicHandler != nil)
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{
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cbTransmissionPowerCharacteristicHandler(YES,nil);
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}
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[self logFindMeDataWithService:transmissionPowerCharacteristic.service characteristic:transmissionPowerCharacteristic data:READ_REQUEST];
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[[[CBMoralManager sharedManager] myPeripheral] readValueForCharacteristic:transmissionPowerCharacteristic];
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}
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else if ([characteristic.UUID isEqual:_immediateAlertCharacteristic.UUID])
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{
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}
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else
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{
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if (cbTransmissionPowerCharacteristicHandler != nil)
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{
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cbTransmissionPowerCharacteristicHandler(NO,nil);
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}
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}
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}
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/*!
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* @method peripheral: didWriteValueForCharacteristic: error:
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*
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* @discussion Method invoked when write value to the device with response
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*
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*/
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-(void) peripheral:(CBPeripheral *)peripheral didWriteValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error
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{
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if ([characteristic.UUID isEqual:linkLossCharacteristic.UUID])
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{
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if (error == nil)
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{
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[self logFindMeDataWithService:linkLossCharacteristic.service characteristic:linkLossCharacteristic data:[NSString stringWithFormat:@"%@- %@",WRITE_REQUEST_STATUS,WRITE_SUCCESS]];
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cbLinkLossCharacteristicHandler(YES,nil);
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}
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else
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{
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[self logFindMeDataWithService:linkLossCharacteristic.service characteristic:linkLossCharacteristic data:[NSString stringWithFormat:@"%@- %@%@",WRITE_REQUEST_STATUS,WRITE_ERROR,[error.userInfo objectForKey:NSLocalizedDescriptionKey]]];
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cbLinkLossCharacteristicHandler(NO,error);
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}
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}
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}
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/*!
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* @method logFindMeDataWithService: characteristic: data:
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*
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* @discussion Method to log details of various operations
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*
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*/
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-(void) logFindMeDataWithService:(CBService *)service characteristic:(CBCharacteristic *)characteristic data:(NSString *)dataString
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{
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[Utilities logDataWithService:[ResourceHandler getServiceNameForUUID:service.UUID] characteristic:[ResourceHandler getCharacteristicNameForUUID:characteristic.UUID] descriptor:nil operation:dataString];
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}
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@end
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