//
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// BlufiFrameCtrlData.m
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// EspBlufi
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//
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// Created by AE on 2020/6/9.
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// Copyright © 2020 espressif. All rights reserved.
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//
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#import "BlufiFrameCtrlData.h"
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@interface BlufiFrameCtrlData()
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@property(assign, nonatomic,)Byte value;
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@end
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@implementation BlufiFrameCtrlData
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enum {
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PositionEncrypted = 0,
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PositionChecksum,
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PositionDataDirection,
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PositionRequireAck,
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PositionFrag,
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};
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- (instancetype)initWithValue:(Byte)value {
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self = [super init];
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if (self) {
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_value = value;
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}
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return self;
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}
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- (BOOL)check:(uint32_t)position {
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return (_value >> position & 1) == 1;
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}
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- (BOOL)isEncrypted {
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return [self check:PositionEncrypted];
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}
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- (BOOL)isChecksum {
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return [self check:PositionChecksum];
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}
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- (BOOL)isAckRequirement {
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return [self check:PositionRequireAck];
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}
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- (BOOL)hasFrag {
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return [self check:PositionFrag];
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}
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+ (Byte)getFrameCtrlValueWithEncrypted:(BOOL)encrypted checksum:(BOOL)checksum direction:(DataDirection)direction requireAck:(BOOL)ack hasFrag:(BOOL)frag {
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Byte frame = 0;
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if (encrypted) {
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frame |= (1 << PositionEncrypted);
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}
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if (checksum) {
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frame |= (1 << PositionChecksum);
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}
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if (direction == DataInput) {
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frame |= (1 << PositionDataDirection);
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}
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if (ack) {
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frame |= (1 << PositionRequireAck);
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}
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if (frag) {
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frame |= (1 << PositionFrag);
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}
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return frame;
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}
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@end
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