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[CMBATT]: Implement CmBattQueryInformation and CmBattQueryStatus.
svn path=/trunk/; revision=46288
This commit is contained in:
Sir Richard
parent
84d900acb3
commit
9f21a824cb
2 changed files with 242 additions and 24 deletions
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@ -74,7 +74,7 @@ CmBattUnload(IN PDRIVER_OBJECT DriverObject)
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NTSTATUS
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NTAPI
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CmBattVerifyStaticInfo(ULONG StaData,
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CmBattVerifyStaticInfo(PCMBATT_DEVICE_EXTENSION DeviceExtension,
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ULONG BatteryTag)
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{
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UNIMPLEMENTED;
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@ -191,26 +191,246 @@ CmBattGetBatteryStatus(PCMBATT_DEVICE_EXTENSION DeviceExtension,
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NTSTATUS
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NTAPI
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CmBattQueryInformation(PCMBATT_DEVICE_EXTENSION DeviceExtension,
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ULONG BatteryTag,
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BATTERY_QUERY_INFORMATION_LEVEL Level,
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OPTIONAL LONG AtRate,
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PVOID Buffer,
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ULONG BufferLength,
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PULONG ReturnedLength)
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CmBattQueryInformation(IN PCMBATT_DEVICE_EXTENSION FdoExtension,
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IN ULONG Tag,
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IN BATTERY_QUERY_INFORMATION_LEVEL InfoLevel,
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IN OPTIONAL LONG AtRate,
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IN PVOID Buffer,
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IN ULONG BufferLength,
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OUT PULONG ReturnedLength)
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{
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UNIMPLEMENTED;
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return STATUS_NOT_IMPLEMENTED;
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NTSTATUS Status;
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PVOID QueryData = NULL;
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ULONG QueryLength = 0;
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ULONG RemainingTime = 0;
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ANSI_STRING TempString;
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UNICODE_STRING TempString2;
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WCHAR InfoBuffer[256];
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WCHAR TempBuffer[256];
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UNICODE_STRING InfoString;
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ULONG RemainingCapacity;
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BATTERY_REPORTING_SCALE BatteryReportingScale[2];
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LONG Rate;
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PAGED_CODE();
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if (CmBattDebug & (CMBATT_ACPI_WARNING | CMBATT_GENERIC_INFO))
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DbgPrint("CmBattQueryInformation - Tag (%d) Device %d, Informationlevel %d\n",
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Tag,
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FdoExtension->DeviceId,
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InfoLevel);
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/* Check ACPI Data */
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Status = CmBattVerifyStaticInfo(FdoExtension, Tag);
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if (!NT_SUCCESS(Status)) return Status;
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/* Check what caller wants */
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switch (InfoLevel)
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{
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case BatteryInformation:
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/* Just return our static information */
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QueryData = &FdoExtension->BatteryInformation;
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QueryLength = sizeof(BATTERY_INFORMATION);
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break;
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case BatteryGranularityInformation:
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/* Return our static information, we have two scales */
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BatteryReportingScale[0].Granularity = FdoExtension->BatteryCapacityGranularity1;
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BatteryReportingScale[0].Capacity = FdoExtension->BatteryInformation.DefaultAlert1;
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BatteryReportingScale[1].Granularity = FdoExtension->BatteryCapacityGranularity2;
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BatteryReportingScale[1].Capacity = FdoExtension->BatteryInformation.DesignedCapacity;
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QueryData = BatteryReportingScale;
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QueryLength = sizeof(BATTERY_REPORTING_SCALE) * 2;
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break;
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case BatteryEstimatedTime:
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/* Check if it's been more than 2 1/2 minutes since the last change */
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if ((KeQueryInterruptTime() - 150000000) > (FdoExtension->InterruptTime))
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{
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/* Get new battery status */
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CmBattGetBatteryStatus(FdoExtension, FdoExtension->Tag);
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/* If the caller didn't specify a rate, use our static one */
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Rate = AtRate;
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if (!Rate) Rate = FdoExtension->Rate;
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/* If we don't have a valid negative rate, use unknown value */
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if (Rate >= 0) Rate = BATTERY_UNKNOWN_RATE;
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/* Grab the remaining capacity */
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RemainingCapacity = FdoExtension->RemainingCapacity;
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/* See if we don't know one or the other */
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if ((Rate == BATTERY_UNKNOWN_RATE) ||
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(RemainingCapacity == BATTERY_UNKNOWN_CAPACITY))
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{
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/* If the battery is discharging, we can't give out a time */
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if ((FdoExtension->BstData.State & ACPI_BATT_STAT_DISCHARG) &&
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(CmBattDebug & CMBATT_GENERIC_WARNING))
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DbgPrint("CmBattQueryInformation: Can't calculate EstimatedTime.\n");
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/* Check if we don't have a rate and capacity is going down */
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if ((FdoExtension->Rate == BATTERY_UNKNOWN_RATE) &&
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(FdoExtension->BstData.State & ACPI_BATT_STAT_DISCHARG))
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{
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/* We have to fail, since we lack data */
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Status = STATUS_INVALID_DEVICE_REQUEST;
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if (CmBattDebug & CMBATT_GENERIC_WARNING)
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DbgPrint("---------------------- PresentRate = BATTERY_UNKNOWN_RATE\n");
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}
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/* If we don't have capacity, the rate is useless */
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if (RemainingCapacity == BATTERY_UNKNOWN_CAPACITY)
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{
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/* We have to fail the request */
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Status = STATUS_INVALID_DEVICE_REQUEST;
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if (CmBattDebug & CMBATT_GENERIC_WARNING)
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DbgPrint("---------------------- RemainingCapacity = BATTERY_UNKNOWN_CAPACITY\n");
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}
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}
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else
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{
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/* We have data, but is it valid? */
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if (RemainingCapacity > 0x123456)
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{
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/* The capacity seems bogus, so don't use it */
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if (CmBattDebug & CMBATT_ACPI_WARNING)
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DbgPrint("CmBattQueryInformation: Data Overflow in calculating Remaining Capacity.\n");
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}
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else
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{
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/* Compute the remaining time in seconds, based on rate */
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RemainingTime = (RemainingCapacity * 3600) / -Rate;
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}
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}
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}
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/* Return the remaining time */
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QueryData = &RemainingTime;
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QueryLength = sizeof(ULONG);
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break;
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case BatteryDeviceName:
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/* Build the model number string */
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RtlInitAnsiString(&TempString, FdoExtension->ModelNumber);
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/* Convert it to Unicode */
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InfoString.Buffer = InfoBuffer;
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InfoString.MaximumLength = sizeof(InfoBuffer);
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Status = RtlAnsiStringToUnicodeString(&InfoString, &TempString, 0);
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/* Return the unicode buffer */
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QueryData = InfoString.Buffer;
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QueryLength = InfoString.Length;
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break;
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case BatteryTemperature:
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case BatteryManufactureDate:
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/* We don't support these */
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Status = STATUS_INVALID_DEVICE_REQUEST;
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break;
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case BatteryManufactureName:
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/* Build the OEM info string */
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RtlInitAnsiString(&TempString, FdoExtension->OemInfo);
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/* Convert it to Unicode */
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InfoString.Buffer = InfoBuffer;
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InfoString.MaximumLength = sizeof(InfoBuffer);
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Status = RtlAnsiStringToUnicodeString(&InfoString, &TempString, 0);
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/* Return the unicode buffer */
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QueryData = InfoString.Buffer;
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QueryLength = InfoString.Length;
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break;
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case BatteryUniqueID:
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/* Build the serial number string */
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RtlInitAnsiString(&TempString, FdoExtension->SerialNumber);
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/* Convert it to Unicode */
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InfoString.Buffer = InfoBuffer;
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InfoString.MaximumLength = sizeof(InfoBuffer);
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RtlAnsiStringToUnicodeString(&InfoString, &TempString, 0);
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/* Setup a temporary string for concatenation */
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TempString2.Buffer = TempBuffer;
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TempString2.MaximumLength = sizeof(TempBuffer);
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/* Check if there's an OEM string */
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if (FdoExtension->OemInfo[0])
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{
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/* Build the OEM info string */
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RtlInitAnsiString(&TempString, FdoExtension->OemInfo);
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/* Convert it to Unicode and append it */
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RtlAnsiStringToUnicodeString(&TempString2, &TempString, 0);
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RtlAppendUnicodeStringToString(&InfoString, &TempString2);
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}
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/* Build the model number string */
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RtlInitAnsiString(&TempString, FdoExtension->ModelNumber);
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/* Convert it to Unicode and append it */
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RtlAnsiStringToUnicodeString(&TempString2, &TempString, 0);
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RtlAppendUnicodeStringToString(&InfoString, &TempString2);
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/* Return the final appended string */
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QueryData = InfoString.Buffer;
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QueryLength = InfoString.Length;
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break;
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default:
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/* Everything else is unknown */
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Status = STATUS_INVALID_PARAMETER;
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break;
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}
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/* Return the required length and check if the caller supplied enough */
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*ReturnedLength = QueryLength;
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if (BufferLength < QueryLength) Status = STATUS_BUFFER_TOO_SMALL;
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/* Copy the data if there's enough space and it exists */
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if ((NT_SUCCESS(Status)) && (QueryData)) RtlCopyMemory(Buffer, QueryData, QueryLength);
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/* Return function result */
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return Status;
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}
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NTSTATUS
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NTAPI
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CmBattQueryStatus(PCMBATT_DEVICE_EXTENSION DeviceExtension,
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ULONG BatteryTag,
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PBATTERY_STATUS BatteryStatus)
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CmBattQueryStatus(IN PCMBATT_DEVICE_EXTENSION DeviceExtension,
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IN ULONG Tag,
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IN PBATTERY_STATUS BatteryStatus)
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{
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UNIMPLEMENTED;
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return STATUS_NOT_IMPLEMENTED;
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NTSTATUS Status;
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PAGED_CODE();
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if (CmBattDebug & (CMBATT_ACPI_WARNING | CMBATT_GENERIC_INFO))
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DbgPrint("CmBattQueryStatus - Tag (%d) Device %x\n", Tag, DeviceExtension->DeviceId);
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/* Query ACPI information */
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Status = CmBattGetBatteryStatus(DeviceExtension, Tag);
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if (NT_SUCCESS(Status))
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{
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BatteryStatus->PowerState = DeviceExtension->State;
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BatteryStatus->Capacity = DeviceExtension->RemainingCapacity;
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BatteryStatus->Voltage = DeviceExtension->PresentVoltage;
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BatteryStatus->Rate = DeviceExtension->Rate;
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}
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/* Return status */
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if (CmBattDebug & (CMBATT_GENERIC_INFO))
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DbgPrint("CmBattQueryStatus: Returning [%#08lx][%#08lx][%#08lx][%#08lx]\n",
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BatteryStatus->PowerState,
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BatteryStatus->Capacity,
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BatteryStatus->Voltage,
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BatteryStatus->Rate);
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return Status;
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}
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NTSTATUS
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@ -233,20 +453,16 @@ DriverEntry(IN PDRIVER_OBJECT DriverObject,
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{
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/* Fail if we're out of memory this early */
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if (CmBattDebug & CMBATT_GENERIC_WARNING)
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{
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DbgPrint("CmBatt: Couldn't allocate pool for registry path.");
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}
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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/* Buffer allocated, copy the string */
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RtlCopyUnicodeString(&GlobalRegistryPath, RegistryPath);
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if (CmBattDebug & CMBATT_GENERIC_INFO)
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{
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DbgPrint("CmBatt DriverEntry - Obj (%08x) Path \"%ws\"\n",
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DriverObject,
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RegistryPath->Buffer);
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}
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/* Setup the major dispatchers */
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DriverObject->MajorFunction[0] = CmBattOpenClose;
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@ -276,9 +492,7 @@ DriverEntry(IN PDRIVER_OBJECT DriverObject,
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/* No callback, fail */
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CmBattPowerCallBackObject = 0;
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if (CmBattDebug & CMBATT_GENERIC_WARNING)
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{
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DbgPrint("CmBattRegisterPowerCallBack: failed status=0x%08x\n", Status);
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}
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}
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else
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{
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@ -296,9 +510,7 @@ DriverEntry(IN PDRIVER_OBJECT DriverObject,
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{
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ObfDereferenceObject(CmBattPowerCallBackObject);
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if (CmBattDebug & CMBATT_GENERIC_WARNING)
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{
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DbgPrint("CmBattRegisterPowerCallBack: ExRegisterCallback failed.\n");
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}
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}
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/* All good */
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@ -29,6 +29,12 @@ typedef enum _CMBATT_EXTENSION_TYPE
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CmBattBattery
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} CMBATT_EXTENSION_TYPE;
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#define ACPI_BATT_STAT_DISCHARG 0x0001
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#define ACPI_BATT_STAT_CHARGING 0x0002
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#define ACPI_BATT_STAT_CRITICAL 0x0004
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#define ACPI_BATT_STAT_NOT_PRESENT 0x0007
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#define ACPI_BATT_STAT_MAX 0x0007
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typedef struct _ACPI_BST_DATA
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{
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ULONG State;
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@ -93,7 +99,7 @@ typedef struct _CMBATT_DEVICE_EXTENSION
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ULONG RemainingCapacity;
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ULONG PresentVoltage;
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ULONG Rate;
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BATTERY_INFORMATION StaticBatteryInformation;
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BATTERY_INFORMATION BatteryInformation;
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ULONG BatteryCapacityGranularity1;
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ULONG BatteryCapacityGranularity2;
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BOOLEAN TripPointSet;
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