void
DtCompileInteger (
UINT8 *Buffer,
DT_FIELD *Field,
UINT32 ByteLength,
UINT8 Flags)
{
UINT64 Value;
UINT64 MaxValue;
ACPI_STATUS Status;
/* Output buffer byte length must be in range 1-8 */
if ((ByteLength > 8) || (ByteLength == 0))
{
DtFatal (ASL_MSG_COMPILER_INTERNAL, Field,
"Invalid internal Byte length");
return;
}
/* Resolve integer expression to a single integer value */
Status = DtResolveIntegerExpression (Field, &Value);
if (ACPI_FAILURE (Status))
{
return;
}
/*
* Ensure that reserved fields are set properly. Note: uses
* the DT_NON_ZERO flag to indicate that the reserved value
* must be exactly one. Otherwise, the value must be zero.
* This is sufficient for now.
*/
/* TBD: Should use a flag rather than compare "Reserved" */
if (!ACPI_STRCMP (Field->Name, "Reserved"))
{
if (Flags & DT_NON_ZERO)
{
if (Value != 1)
{
DtError (ASL_WARNING, ASL_MSG_RESERVED_VALUE, Field,
"Must be one, setting to one");
Value = 1;
}
}
else if (Value != 0)
{
DtError (ASL_WARNING, ASL_MSG_RESERVED_VALUE, Field,
"Must be zero, setting to zero");
Value = 0;
}
}
/* Check if the value must be non-zero */
else if ((Flags & DT_NON_ZERO) && (Value == 0))
{
DtError (ASL_ERROR, ASL_MSG_ZERO_VALUE, Field, NULL);
}
/*
* Generate the maximum value for the data type (ByteLength)
* Note: construct chosen for maximum portability
*/
MaxValue = ((UINT64) (-1)) >> (64 - (ByteLength * 8));
/* Validate that the input value is within range of the target */
if (Value > MaxValue)
{
sprintf (MsgBuffer, "%8.8X%8.8X - max %u bytes",
ACPI_FORMAT_UINT64 (Value), ByteLength);
DtError (ASL_ERROR, ASL_MSG_INTEGER_SIZE, Field, MsgBuffer);
}
ACPI_MEMCPY (Buffer, &Value, ByteLength);
return;
}
void
DtCompileInteger (
UINT8 *Buffer,
DT_FIELD *Field,
UINT32 ByteLength,
UINT8 Flags)
{
UINT64 Value;
UINT64 MaxValue;
ACPI_STATUS Status;
/* Output buffer byte length must be in range 1-8 */
if ((ByteLength > 8) || (ByteLength == 0))
{
DtFatal (ASL_MSG_COMPILER_INTERNAL, Field,
"Invalid internal Byte length");
return;
}
/* Resolve integer expression to a single integer value */
Status = DtResolveIntegerExpression (Field, &Value);
if (ACPI_FAILURE (Status))
{
return;
}
/* Ensure that reserved fields are set to zero */
/* TBD: should we set to zero, or just make this an ERROR? */
/* TBD: Probably better to use a flag */
if (!ACPI_STRCMP (Field->Name, "Reserved") &&
(Value != 0))
{
DtError (ASL_WARNING, ASL_MSG_RESERVED_VALUE, Field,
"Setting to zero");
Value = 0;
}
/* Check if the value must be non-zero */
if ((Value == 0) && (Flags & DT_NON_ZERO))
{
DtError (ASL_ERROR, ASL_MSG_ZERO_VALUE, Field, NULL);
}
/*
* Generate the maximum value for the data type (ByteLength)
* Note: construct chosen for maximum portability
*/
MaxValue = ((UINT64) (-1)) >> (64 - (ByteLength * 8));
/* Validate that the input value is within range of the target */
if (Value > MaxValue)
{
snprintf (MsgBuffer, sizeof(MsgBuffer), "%8.8X%8.8X - max %u bytes",
ACPI_FORMAT_UINT64 (Value), ByteLength);
DtError (ASL_ERROR, ASL_MSG_INTEGER_SIZE, Field, MsgBuffer);
}
ACPI_MEMCPY (Buffer, &Value, ByteLength);
return;
}