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ReactOS Development > Doxygen

registry.c
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00001 /*
00002  * PROJECT:     ReactOS i8042 (ps/2 keyboard-mouse controller) driver
00003  * LICENSE:     GPL - See COPYING in the top level directory
00004  * FILE:        drivers/input/i8042prt/i8042prt.c
00005  * PURPOSE:     Reading the registry
00006  * PROGRAMMERS: Copyright Victor Kirhenshtein (sauros@iname.com)
00007                 Copyright Jason Filby (jasonfilby@yahoo.com)
00008                 Copyright Martijn Vernooij (o112w8r02@sneakemail.com)
00009                 Copyright 2006-2007 Hervé Poussineau (hpoussin@reactos.org)
00010  */
00011 
00012 /* INCLUDES ******************************************************************/
00013 
00014 #include "i8042prt.h"
00015 
00016 /* FUNCTIONS *****************************************************************/
00017 
00018 NTSTATUS
00019 ReadRegistryEntries(
00020     IN PUNICODE_STRING RegistryPath,
00021     OUT PI8042_SETTINGS Settings)
00022 {
00023     RTL_QUERY_REGISTRY_TABLE Parameters[17];
00024     NTSTATUS Status;
00025 
00026     ULONG DefaultKeyboardDataQueueSize = 0x64;
00027     PCWSTR DefaultKeyboardDeviceBaseName = L"KeyboardPort";
00028     ULONG DefaultMouseDataQueueSize = 0x64;
00029     ULONG DefaultMouseResolution = 3;
00030     ULONG DefaultMouseSynchIn100ns = 20000000;
00031     ULONG DefaultNumberOfButtons = 2;
00032     PCWSTR DefaultPointerDeviceBaseName = L"PointerPort";
00033     ULONG DefaultPollStatusIterations = 1;
00034     ULONG DefaultOverrideKeyboardType = 4;
00035     ULONG DefaultOverrideKeyboardSubtype = 0;
00036     ULONG DefaultPollingIterations = 12000;
00037     ULONG DefaultPollingIterationsMaximum = 12000;
00038     ULONG DefaultResendIterations = 0x3;
00039     ULONG DefaultSampleRate = 60;
00040     ULONG DefaultCrashOnCtrlScroll;
00041 
00042     /* Default value for CrashOnCtrlScroll depends if we're
00043      * running a debug build or a normal build.
00044      */
00045 #if DBG
00046     DefaultCrashOnCtrlScroll = 1;
00047 #else
00048     DefaultCrashOnCtrlScroll = 0;
00049 #endif
00050 
00051     RtlZeroMemory(Parameters, sizeof(Parameters));
00052 
00053     Parameters[0].Flags = RTL_QUERY_REGISTRY_SUBKEY;
00054     Parameters[0].Name = L"Parameters";
00055 
00056     Parameters[1].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
00057     Parameters[1].Name = L"KeyboardDataQueueSize";
00058     Parameters[1].EntryContext = &Settings->KeyboardDataQueueSize;
00059     Parameters[1].DefaultType = REG_DWORD;
00060     Parameters[1].DefaultData = &DefaultKeyboardDataQueueSize;
00061     Parameters[1].DefaultLength = sizeof(ULONG);
00062 
00063     Parameters[2].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
00064     Parameters[2].Name = L"KeyboardDeviceBaseName";
00065     Parameters[2].EntryContext = &Settings->KeyboardDeviceBaseName;
00066     Parameters[2].DefaultType = REG_SZ;
00067     Parameters[2].DefaultData = (PVOID)DefaultKeyboardDeviceBaseName;
00068     Parameters[2].DefaultLength = 0;
00069 
00070     Parameters[3].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
00071     Parameters[3].Name = L"MouseDataQueueSize";
00072     Parameters[3].EntryContext = &Settings->MouseDataQueueSize;
00073     Parameters[3].DefaultType = REG_DWORD;
00074     Parameters[3].DefaultData = &DefaultMouseDataQueueSize;
00075     Parameters[3].DefaultLength = sizeof(ULONG);
00076 
00077     Parameters[4].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
00078     Parameters[4].Name = L"MouseResolution";
00079     Parameters[4].EntryContext = &Settings->MouseResolution;
00080     Parameters[4].DefaultType = REG_DWORD;
00081     Parameters[4].DefaultData = &DefaultMouseResolution;
00082     Parameters[4].DefaultLength = sizeof(ULONG);
00083 
00084     Parameters[5].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
00085     Parameters[5].Name = L"MouseSynchIn100ns";
00086     Parameters[5].EntryContext = &Settings->MouseSynchIn100ns;
00087     Parameters[5].DefaultType = REG_DWORD;
00088     Parameters[5].DefaultData = &DefaultMouseSynchIn100ns;
00089     Parameters[5].DefaultLength = sizeof(ULONG);
00090 
00091     Parameters[6].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
00092     Parameters[6].Name = L"NumberOfButtons";
00093     Parameters[6].EntryContext = &Settings->NumberOfButtons;
00094     Parameters[6].DefaultType = REG_DWORD;
00095     Parameters[6].DefaultData = &DefaultNumberOfButtons;
00096     Parameters[6].DefaultLength = sizeof(ULONG);
00097 
00098     Parameters[7].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
00099     Parameters[7].Name = L"PointerDeviceBaseName";
00100     Parameters[7].EntryContext = &Settings->PointerDeviceBaseName;
00101     Parameters[7].DefaultType = REG_SZ;
00102     Parameters[7].DefaultData = (PVOID)DefaultPointerDeviceBaseName;
00103     Parameters[7].DefaultLength = 0;
00104 
00105     Parameters[8].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
00106     Parameters[8].Name = L"PollStatusIterations";
00107     Parameters[8].EntryContext = &Settings->PollStatusIterations;
00108     Parameters[8].DefaultType = REG_DWORD;
00109     Parameters[8].DefaultData = &DefaultPollStatusIterations;
00110     Parameters[8].DefaultLength = sizeof(ULONG);
00111 
00112     Parameters[9].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
00113     Parameters[9].Name = L"OverrideKeyboardType";
00114     Parameters[9].EntryContext = &Settings->OverrideKeyboardType;
00115     Parameters[9].DefaultType = REG_DWORD;
00116     Parameters[9].DefaultData = &DefaultOverrideKeyboardType;
00117     Parameters[9].DefaultLength = sizeof(ULONG);
00118 
00119     Parameters[10].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
00120     Parameters[10].Name = L"OverrideKeyboardSubtype";
00121     Parameters[10].EntryContext = &Settings->OverrideKeyboardSubtype;
00122     Parameters[10].DefaultType = REG_DWORD;
00123     Parameters[10].DefaultData = &DefaultOverrideKeyboardSubtype;
00124     Parameters[10].DefaultLength = sizeof(ULONG);
00125 
00126     Parameters[11].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
00127     Parameters[11].Name = L"PollingIterations";
00128     Parameters[11].EntryContext = &Settings->PollingIterations;
00129     Parameters[11].DefaultType = REG_DWORD;
00130     Parameters[11].DefaultData = &DefaultPollingIterations;
00131     Parameters[11].DefaultLength = sizeof(ULONG);
00132 
00133     Parameters[12].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
00134     Parameters[12].Name = L"PollingIterationsMaximum";
00135     Parameters[12].EntryContext = &Settings->PollingIterationsMaximum;
00136     Parameters[12].DefaultType = REG_DWORD;
00137     Parameters[12].DefaultData = &DefaultPollingIterationsMaximum;
00138     Parameters[12].DefaultLength = sizeof(ULONG);
00139 
00140     Parameters[13].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
00141     Parameters[13].Name = L"ResendIterations";
00142     Parameters[13].EntryContext = &Settings->ResendIterations;
00143     Parameters[13].DefaultType = REG_DWORD;
00144     Parameters[13].DefaultData = &DefaultResendIterations;
00145     Parameters[13].DefaultLength = sizeof(ULONG);
00146 
00147     Parameters[14].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
00148     Parameters[14].Name = L"SampleRate";
00149     Parameters[14].EntryContext = &Settings->SampleRate;
00150     Parameters[14].DefaultType = REG_DWORD;
00151     Parameters[14].DefaultData = &DefaultSampleRate;
00152     Parameters[14].DefaultLength = sizeof(ULONG);
00153 
00154     Parameters[15].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_REGISTRY_OPTIONAL;
00155     Parameters[15].Name = L"CrashOnCtrlScroll";
00156     Parameters[15].EntryContext = &Settings->CrashOnCtrlScroll;
00157     Parameters[15].DefaultType = REG_DWORD;
00158     Parameters[15].DefaultData = &DefaultCrashOnCtrlScroll;
00159     Parameters[15].DefaultLength = sizeof(ULONG);
00160 
00161     Status = RtlQueryRegistryValues(
00162         RTL_REGISTRY_ABSOLUTE,
00163         RegistryPath->Buffer,
00164         Parameters,
00165         NULL,
00166         NULL);
00167 
00168     if (NT_SUCCESS(Status))
00169     {
00170         /* Check values */
00171         if (Settings->KeyboardDataQueueSize < 1)
00172             Settings->KeyboardDataQueueSize = DefaultKeyboardDataQueueSize;
00173         if (Settings->MouseDataQueueSize < 1)
00174             Settings->MouseDataQueueSize = DefaultMouseDataQueueSize;
00175         if (Settings->NumberOfButtons < 1)
00176             Settings->NumberOfButtons = DefaultNumberOfButtons;
00177         if (Settings->PollingIterations < 0x400)
00178             Settings->PollingIterations = DefaultPollingIterations;
00179         if (Settings->PollingIterationsMaximum < 0x400)
00180             Settings->PollingIterationsMaximum = DefaultPollingIterationsMaximum;
00181         if (Settings->ResendIterations < 1)
00182             Settings->ResendIterations = DefaultResendIterations;
00183     }
00184     else if (Status == STATUS_OBJECT_NAME_NOT_FOUND)
00185     {
00186         /* Registry path doesn't exist. Set defaults */
00187         Settings->KeyboardDataQueueSize = DefaultKeyboardDataQueueSize;
00188         Settings->MouseDataQueueSize = DefaultMouseDataQueueSize;
00189         Settings->MouseResolution = DefaultMouseResolution;
00190         Settings->MouseSynchIn100ns = DefaultMouseSynchIn100ns;
00191         Settings->NumberOfButtons = DefaultNumberOfButtons;
00192         Settings->PollStatusIterations = DefaultPollStatusIterations;
00193         Settings->OverrideKeyboardType = DefaultOverrideKeyboardType;
00194         Settings->OverrideKeyboardSubtype = DefaultOverrideKeyboardSubtype;
00195         Settings->PollingIterations = DefaultPollingIterations;
00196         Settings->PollingIterationsMaximum = DefaultPollingIterationsMaximum;
00197         Settings->ResendIterations = DefaultResendIterations;
00198         Settings->SampleRate = DefaultSampleRate;
00199         Settings->CrashOnCtrlScroll = DefaultCrashOnCtrlScroll;
00200         if (!RtlCreateUnicodeString(&Settings->KeyboardDeviceBaseName, DefaultKeyboardDeviceBaseName)
00201          || !RtlCreateUnicodeString(&Settings->PointerDeviceBaseName, DefaultPointerDeviceBaseName))
00202         {
00203             WARN_(I8042PRT, "RtlCreateUnicodeString() failed\n");
00204             Status = STATUS_NO_MEMORY;
00205         }
00206         else
00207         {
00208             Status = STATUS_SUCCESS;
00209         }
00210     }
00211 
00212     if (NT_SUCCESS(Status))
00213     {
00214         INFO_(I8042PRT, "KeyboardDataQueueSize : 0x%lx\n", Settings->KeyboardDataQueueSize);
00215         INFO_(I8042PRT, "KeyboardDeviceBaseName : %wZ\n", &Settings->KeyboardDeviceBaseName);
00216         INFO_(I8042PRT, "MouseDataQueueSize : 0x%lx\n", Settings->MouseDataQueueSize);
00217         INFO_(I8042PRT, "MouseResolution : 0x%lx\n", Settings->MouseResolution);
00218         INFO_(I8042PRT, "MouseSynchIn100ns : %lu\n", Settings->MouseSynchIn100ns);
00219         INFO_(I8042PRT, "NumberOfButtons : 0x%lx\n", Settings->NumberOfButtons);
00220         INFO_(I8042PRT, "PointerDeviceBaseName : %wZ\n", &Settings->PointerDeviceBaseName);
00221         INFO_(I8042PRT, "PollStatusIterations : 0x%lx\n", Settings->PollStatusIterations);
00222         INFO_(I8042PRT, "OverrideKeyboardType : 0x%lx\n", Settings->OverrideKeyboardType);
00223         INFO_(I8042PRT, "OverrideKeyboardSubtype : 0x%lx\n", Settings->OverrideKeyboardSubtype);
00224         INFO_(I8042PRT, "PollingIterations : 0x%lx\n", Settings->PollingIterations);
00225         INFO_(I8042PRT, "PollingIterationsMaximum : %lu\n", Settings->PollingIterationsMaximum);
00226         INFO_(I8042PRT, "ResendIterations : 0x%lx\n", Settings->ResendIterations);
00227         INFO_(I8042PRT, "SampleRate : %lu\n", Settings->SampleRate);
00228     }
00229 
00230     return Status;
00231 }
Generated on Sun May 27 2012 04:17:08 for ReactOS by doxygen 1.7.6.1
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