|
1 // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies). |
|
2 // All rights reserved. |
|
3 // This component and the accompanying materials are made available |
|
4 // under the terms of "Eclipse Public License v1.0" |
|
5 // which accompanies this distribution, and is available |
|
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
7 // |
|
8 // Initial Contributors: |
|
9 // Nokia Corporation - initial contribution. |
|
10 // |
|
11 // Contributors: |
|
12 // |
|
13 // Description: |
|
14 // This queries the ME (Mobile Equipment) signal quality, using a standard (ETSI GSM 07.07 April 1997) AT command : AT+CSQ |
|
15 // |
|
16 // |
|
17 |
|
18 /** |
|
19 @file |
|
20 @internalAll |
|
21 */ |
|
22 |
|
23 #ifndef __MMSIGNAL_H__ |
|
24 #define __MMSIGNAL_H__ |
|
25 |
|
26 #include "ATBASE.H" |
|
27 |
|
28 class CATGetSignal : public CATCommands |
|
29 { |
|
30 public: |
|
31 static CATGetSignal* NewL(CATIO* aIo, CTelObject* aTelObject, CATInit* aInit, CPhoneGlobals* aPhoneGlobals); |
|
32 CATGetSignal(CATIO* aIo, CTelObject* aTelObject, CATInit* aInit, CPhoneGlobals* aPhoneGlobals); |
|
33 ~CATGetSignal(); |
|
34 void ConstructL(); |
|
35 virtual void Start(TTsyReqHandle aTsyReqHandle, TAny* aParams); |
|
36 virtual void Stop(TTsyReqHandle aTsyReqHandle); |
|
37 virtual void EventSignal(TEventSource aSource); |
|
38 virtual void CompleteWithIOError(TEventSource aSource, TInt aStatus); |
|
39 TInt8 NumberOfSignalBars(TInt32 aSignalStrength); |
|
40 |
|
41 struct TTsySignalInfo |
|
42 { |
|
43 TInt32* iSignalStrength; |
|
44 TInt8* iBar; |
|
45 }; |
|
46 |
|
47 private: |
|
48 void Complete(TInt aError, TEventSource aSource); |
|
49 void ParseSignalResponseL(); |
|
50 |
|
51 enum { |
|
52 EATNotInProgress, |
|
53 EATSignalWaitForWriteComplete, |
|
54 EATSignalReadComplete |
|
55 } iState; |
|
56 |
|
57 // Values of <rssi> parameter in AT+CSQ response |
|
58 enum { |
|
59 KSignalStrengthMinus113dBm = 0, |
|
60 KSignalStrengthMinus101dBm = 6, |
|
61 KSignalStrengthMinus89dBm = 12, |
|
62 KSignalStrengthMinus77dBm = 18, |
|
63 KSignalStrengthMinus53dBm = 30, |
|
64 KSignalStrengthMinus51dBm = 31 |
|
65 }; |
|
66 |
|
67 TTsySignalInfo iSignalInfo; |
|
68 }; |
|
69 #endif |