static char *
AcpiUtPutNumber (
char *String,
UINT64 Number,
UINT8 Base,
BOOLEAN Upper)
{
const char *Digits;
UINT64 DigitIndex;
char *Pos;
Pos = String;
Digits = Upper ? AcpiGbl_UpperHexDigits : AcpiGbl_LowerHexDigits;
if (Number == 0)
{
*(Pos++) = '0';
}
else
{
while (Number)
{
(void) AcpiUtDivide (Number, Base, &Number, &DigitIndex);
*(Pos++) = Digits[DigitIndex];
}
}
/* *(Pos++) = '0'; */
return (Pos);
}
ACPI_STATUS
AcpiExOpcode_2A_1T_1R (
ACPI_WALK_STATE *WalkState)
{
ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
ACPI_OPERAND_OBJECT *ReturnDesc = NULL;
UINT64 Index;
ACPI_STATUS Status = AE_OK;
ACPI_SIZE Length = 0;
ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_1T_1R,
AcpiPsGetOpcodeName (WalkState->Opcode));
/* Execute the opcode */
if (WalkState->OpInfo->Flags & AML_MATH)
{
/* All simple math opcodes (add, etc.) */
ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
if (!ReturnDesc)
{
Status = AE_NO_MEMORY;
goto Cleanup;
}
ReturnDesc->Integer.Value = AcpiExDoMathOp (WalkState->Opcode,
Operand[0]->Integer.Value,
Operand[1]->Integer.Value);
goto StoreResultToTarget;
}
switch (WalkState->Opcode)
{
case AML_MOD_OP: /* Mod (Dividend, Divisor, RemainderResult (ACPI 2.0) */
ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
if (!ReturnDesc)
{
Status = AE_NO_MEMORY;
goto Cleanup;
}
/* ReturnDesc will contain the remainder */
Status = AcpiUtDivide (Operand[0]->Integer.Value,
Operand[1]->Integer.Value,
NULL,
&ReturnDesc->Integer.Value);
break;
case AML_CONCAT_OP: /* Concatenate (Data1, Data2, Result) */
Status = AcpiExDoConcatenate (Operand[0], Operand[1],
&ReturnDesc, WalkState);
break;
case AML_TO_STRING_OP: /* ToString (Buffer, Length, Result) (ACPI 2.0) */
/*
* Input object is guaranteed to be a buffer at this point (it may have
* been converted.) Copy the raw buffer data to a new object of
* type String.
*/
/*
* Get the length of the new string. It is the smallest of:
* 1) Length of the input buffer
* 2) Max length as specified in the ToString operator
* 3) Length of input buffer up to a zero byte (null terminator)
*
* NOTE: A length of zero is ok, and will create a zero-length, null
* terminated string.
*/
while ((Length < Operand[0]->Buffer.Length) &&
(Length < Operand[1]->Integer.Value) &&
(Operand[0]->Buffer.Pointer[Length]))
{
Length++;
}
/* Allocate a new string object */
ReturnDesc = AcpiUtCreateStringObject (Length);
if (!ReturnDesc)
{
Status = AE_NO_MEMORY;
goto Cleanup;
}
/*
* Copy the raw buffer data with no transform.
* (NULL terminated already)
*/
ACPI_MEMCPY (ReturnDesc->String.Pointer,
Operand[0]->Buffer.Pointer, Length);
break;
case AML_CONCAT_RES_OP:
/* ConcatenateResTemplate (Buffer, Buffer, Result) (ACPI 2.0) */
Status = AcpiExConcatTemplate (Operand[0], Operand[1],
&ReturnDesc, WalkState);
break;
case AML_INDEX_OP: /* Index (Source Index Result) */
/* Create the internal return object */
ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_REFERENCE);
if (!ReturnDesc)
{
Status = AE_NO_MEMORY;
goto Cleanup;
}
/* Initialize the Index reference object */
Index = Operand[1]->Integer.Value;
ReturnDesc->Reference.Value = (UINT32) Index;
ReturnDesc->Reference.Class = ACPI_REFCLASS_INDEX;
/*
* At this point, the Source operand is a String, Buffer, or Package.
* Verify that the index is within range.
*/
switch ((Operand[0])->Common.Type)
{
case ACPI_TYPE_STRING:
if (Index >= Operand[0]->String.Length)
{
Length = Operand[0]->String.Length;
Status = AE_AML_STRING_LIMIT;
}
ReturnDesc->Reference.TargetType = ACPI_TYPE_BUFFER_FIELD;
break;
case ACPI_TYPE_BUFFER:
if (Index >= Operand[0]->Buffer.Length)
{
Length = Operand[0]->Buffer.Length;
Status = AE_AML_BUFFER_LIMIT;
}
ReturnDesc->Reference.TargetType = ACPI_TYPE_BUFFER_FIELD;
break;
case ACPI_TYPE_PACKAGE:
if (Index >= Operand[0]->Package.Count)
{
Length = Operand[0]->Package.Count;
Status = AE_AML_PACKAGE_LIMIT;
}
ReturnDesc->Reference.TargetType = ACPI_TYPE_PACKAGE;
ReturnDesc->Reference.Where = &Operand[0]->Package.Elements [Index];
break;
default:
Status = AE_AML_INTERNAL;
goto Cleanup;
}
/* Failure means that the Index was beyond the end of the object */
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status,
"Index (0x%X%8.8X) is beyond end of object (length 0x%X)",
ACPI_FORMAT_UINT64 (Index), (UINT32) Length));
goto Cleanup;
}
/*
* Save the target object and add a reference to it for the life
* of the index
*/
ReturnDesc->Reference.Object = Operand[0];
AcpiUtAddReference (Operand[0]);
/* Store the reference to the Target */
Status = AcpiExStore (ReturnDesc, Operand[2], WalkState);
/* Return the reference */
WalkState->ResultObj = ReturnDesc;
goto Cleanup;
default:
ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
WalkState->Opcode));
Status = AE_AML_BAD_OPCODE;
break;
}
StoreResultToTarget:
if (ACPI_SUCCESS (Status))
{
/*
* Store the result of the operation (which is now in ReturnDesc) into
* the Target descriptor.
*/
Status = AcpiExStore (ReturnDesc, Operand[2], WalkState);
if (ACPI_FAILURE (Status))
{
goto Cleanup;
}
if (!WalkState->ResultObj)
{
WalkState->ResultObj = ReturnDesc;
}
}
Cleanup:
/* Delete return object on error */
if (ACPI_FAILURE (Status))
{
AcpiUtRemoveReference (ReturnDesc);
WalkState->ResultObj = NULL;
}
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiExOpcode_2A_2T_1R (
ACPI_WALK_STATE *WalkState)
{
ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
ACPI_OPERAND_OBJECT *ReturnDesc1 = NULL;
ACPI_OPERAND_OBJECT *ReturnDesc2 = NULL;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE_STR (ExOpcode_2A_2T_1R,
AcpiPsGetOpcodeName (WalkState->Opcode));
/* Execute the opcode */
switch (WalkState->Opcode)
{
case AML_DIVIDE_OP:
/* Divide (Dividend, Divisor, RemainderResult QuotientResult) */
ReturnDesc1 = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
if (!ReturnDesc1)
{
Status = AE_NO_MEMORY;
goto Cleanup;
}
ReturnDesc2 = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
if (!ReturnDesc2)
{
Status = AE_NO_MEMORY;
goto Cleanup;
}
/* Quotient to ReturnDesc1, remainder to ReturnDesc2 */
Status = AcpiUtDivide (Operand[0]->Integer.Value,
Operand[1]->Integer.Value,
&ReturnDesc1->Integer.Value,
&ReturnDesc2->Integer.Value);
if (ACPI_FAILURE (Status))
{
goto Cleanup;
}
break;
default:
ACPI_ERROR ((AE_INFO, "Unknown AML opcode 0x%X",
WalkState->Opcode));
Status = AE_AML_BAD_OPCODE;
goto Cleanup;
}
/* Store the results to the target reference operands */
Status = AcpiExStore (ReturnDesc2, Operand[2], WalkState);
if (ACPI_FAILURE (Status))
{
goto Cleanup;
}
Status = AcpiExStore (ReturnDesc1, Operand[3], WalkState);
if (ACPI_FAILURE (Status))
{
goto Cleanup;
}
Cleanup:
/*
* Since the remainder is not returned indirectly, remove a reference to
* it. Only the quotient is returned indirectly.
*/
AcpiUtRemoveReference (ReturnDesc2);
if (ACPI_FAILURE (Status))
{
/* Delete the return object */
AcpiUtRemoveReference (ReturnDesc1);
}
/* Save return object (the remainder) on success */
else
{
WalkState->ResultObj = ReturnDesc1;
}
return_ACPI_STATUS (Status);
}