acpi_status
acpi_ex_opcode_6A_0T_1R (
acpi_walk_state *walk_state)
{
acpi_operand_object **operand = &walk_state->operands[0];
acpi_operand_object *return_desc = NULL;
acpi_status status = AE_OK;
u32 index;
acpi_operand_object *this_element;
FUNCTION_TRACE_STR ("Ex_opcode_6A_0T_1R", acpi_ps_get_opcode_name (walk_state->opcode));
switch (walk_state->opcode) {
case AML_MATCH_OP:
/*
* Match (Search_package[0], Match_op1[1], Match_object1[2],
* Match_op2[3], Match_object2[4], Start_index[5])
*/
/* Validate match comparison sub-opcodes */
if ((operand[1]->integer.value > MAX_MATCH_OPERATOR) ||
(operand[3]->integer.value > MAX_MATCH_OPERATOR)) {
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "operation encoding out of range\n"));
status = AE_AML_OPERAND_VALUE;
goto cleanup;
}
index = (u32) operand[5]->integer.value;
if (index >= (u32) operand[0]->package.count) {
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Index beyond package end\n"));
status = AE_AML_PACKAGE_LIMIT;
goto cleanup;
}
return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
if (!return_desc) {
status = AE_NO_MEMORY;
goto cleanup;
}
/* Default return value if no match found */
return_desc->integer.value = ACPI_INTEGER_MAX;
/*
* Examine each element until a match is found. Within the loop,
* "continue" signifies that the current element does not match
* and the next should be examined.
* Upon finding a match, the loop will terminate via "break" at
* the bottom. If it terminates "normally", Match_value will be -1
* (its initial value) indicating that no match was found. When
* returned as a Number, this will produce the Ones value as specified.
*/
for ( ; index < operand[0]->package.count; index++) {
this_element = operand[0]->package.elements[index];
/*
* Treat any NULL or non-numeric elements as non-matching.
* TBD [Unhandled] - if an element is a Name,
* should we examine its value?
*/
if (!this_element ||
this_element->common.type != ACPI_TYPE_INTEGER) {
continue;
}
/*
* Within these switch statements:
* "break" (exit from the switch) signifies a match;
* "continue" (proceed to next iteration of enclosing
* "for" loop) signifies a non-match.
*/
if (!acpi_ex_do_match ((u32) operand[1]->integer.value,
this_element->integer.value, operand[2]->integer.value)) {
continue;
}
if (!acpi_ex_do_match ((u32) operand[3]->integer.value,
this_element->integer.value, operand[4]->integer.value)) {
continue;
}
/* Match found: Index is the return value */
return_desc->integer.value = index;
break;
}
break;
case AML_LOAD_TABLE_OP:
status = AE_NOT_IMPLEMENTED;
goto cleanup;
break;
default:
REPORT_ERROR (("Acpi_ex_opcode_3A_0T_0R: Unknown opcode %X\n",
walk_state->opcode));
status = AE_AML_BAD_OPCODE;
goto cleanup;
break;
}
walk_state->result_obj = return_desc;
cleanup:
/* Delete return object on error */
if (ACPI_FAILURE (status)) {
acpi_ut_remove_reference (return_desc);
}
return_ACPI_STATUS (status);
}
acpi_status
acpi_ex_opcode_2A_1T_1R (
acpi_walk_state *walk_state)
{
acpi_operand_object **operand = &walk_state->operands[0];
acpi_operand_object *return_desc = NULL;
acpi_operand_object *temp_desc;
u32 index;
acpi_status status = AE_OK;
FUNCTION_TRACE_STR ("Ex_opcode_2A_1T_1R", acpi_ps_get_opcode_name (walk_state->opcode));
/*
* Execute the opcode
*/
if (walk_state->op_info->flags & AML_MATH) {
/* All simple math opcodes (add, etc.) */
return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
if (!return_desc) {
status = AE_NO_MEMORY;
goto cleanup;
}
return_desc->integer.value = acpi_ex_do_math_op (walk_state->opcode,
operand[0]->integer.value,
operand[1]->integer.value);
goto store_result_to_target;
}
switch (walk_state->opcode) {
case AML_MOD_OP: /* Mod (Dividend, Divisor, Remainder_result (ACPI 2.0) */
return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
if (!return_desc) {
status = AE_NO_MEMORY;
goto cleanup;
}
/* Return_desc will contain the remainder */
status = acpi_ut_divide (&operand[0]->integer.value, &operand[1]->integer.value,
NULL, &return_desc->integer.value);
break;
case AML_CONCAT_OP: /* Concatenate (Data1, Data2, Result) */
/*
* Convert the second operand if necessary. The first operand
* determines the type of the second operand, (See the Data Types
* section of the ACPI specification.) Both object types are
* guaranteed to be either Integer/String/Buffer by the operand
* resolution mechanism above.
*/
switch (operand[0]->common.type) {
case ACPI_TYPE_INTEGER:
status = acpi_ex_convert_to_integer (operand[1], &operand[1], walk_state);
break;
case ACPI_TYPE_STRING:
status = acpi_ex_convert_to_string (operand[1], &operand[1], 16, ACPI_UINT32_MAX, walk_state);
break;
case ACPI_TYPE_BUFFER:
status = acpi_ex_convert_to_buffer (operand[1], &operand[1], walk_state);
break;
default:
status = AE_AML_INTERNAL;
}
if (ACPI_FAILURE (status)) {
goto cleanup;
}
/*
* Both operands are now known to be the same object type
* (Both are Integer, String, or Buffer), and we can now perform the
* concatenation.
*/
status = acpi_ex_do_concatenate (operand[0], operand[1], &return_desc, walk_state);
break;
case AML_TO_STRING_OP: /* To_string (Buffer, Length, Result) (ACPI 2.0) */
status = acpi_ex_convert_to_string (operand[0], &return_desc, 16,
(u32) operand[1]->integer.value, walk_state);
break;
case AML_CONCAT_RES_OP: /* Concatenate_res_template (Buffer, Buffer, Result) (ACPI 2.0) */
status = AE_NOT_IMPLEMENTED;
break;
case AML_INDEX_OP: /* Index (Source Index Result) */
/* Create the internal return object */
return_desc = acpi_ut_create_internal_object (INTERNAL_TYPE_REFERENCE);
if (!return_desc) {
status = AE_NO_MEMORY;
goto cleanup;
}
index = (u32) operand[1]->integer.value;
/*
* At this point, the Source operand is either a Package or a Buffer
*/
if (operand[0]->common.type == ACPI_TYPE_PACKAGE) {
/* Object to be indexed is a Package */
if (index >= operand[0]->package.count) {
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Index value beyond package end\n"));
status = AE_AML_PACKAGE_LIMIT;
goto cleanup;
}
if ((operand[2]->common.type == INTERNAL_TYPE_REFERENCE) &&
(operand[2]->reference.opcode == AML_ZERO_OP)) {
/*
* There is no actual result descriptor (the Zero_op Result
* descriptor is a placeholder), so just delete the placeholder and
* return a reference to the package element
*/
acpi_ut_remove_reference (operand[2]);
}
else {
/*
* Each element of the package is an internal object. Get the one
* we are after.
*/
temp_desc = operand[0]->package.elements [index];
return_desc->reference.opcode = AML_INDEX_OP;
return_desc->reference.target_type = temp_desc->common.type;
return_desc->reference.object = temp_desc;
status = acpi_ex_store (return_desc, operand[2], walk_state);
return_desc->reference.object = NULL;
}
/*
* The local return object must always be a reference to the package element,
* not the element itself.
*/
return_desc->reference.opcode = AML_INDEX_OP;
return_desc->reference.target_type = ACPI_TYPE_PACKAGE;
return_desc->reference.where = &operand[0]->package.elements [index];
}
else {
/* Object to be indexed is a Buffer */
if (index >= operand[0]->buffer.length) {
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Index value beyond end of buffer\n"));
status = AE_AML_BUFFER_LIMIT;
goto cleanup;
}
return_desc->reference.opcode = AML_INDEX_OP;
return_desc->reference.target_type = ACPI_TYPE_BUFFER_FIELD;
return_desc->reference.object = operand[0];
return_desc->reference.offset = index;
status = acpi_ex_store (return_desc, operand[2], walk_state);
}
walk_state->result_obj = return_desc;
goto cleanup;
break;
default:
REPORT_ERROR (("Acpi_ex_opcode_2A_1T_1R: Unknown opcode %X\n",
walk_state->opcode));
status = AE_AML_BAD_OPCODE;
break;
}
store_result_to_target:
if (ACPI_SUCCESS (status)) {
/*
* Store the result of the operation (which is now in Return_desc) into
* the Target descriptor.
*/
status = acpi_ex_store (return_desc, operand[2], walk_state);
if (ACPI_FAILURE (status)) {
goto cleanup;
}
walk_state->result_obj = return_desc;
}
cleanup:
/* Delete return object on error */
if (ACPI_FAILURE (status)) {
acpi_ut_remove_reference (return_desc);
}
return_ACPI_STATUS (status);
}
acpi_status
acpi_ex_opcode_2A_0T_1R (
acpi_walk_state *walk_state)
{
acpi_operand_object **operand = &walk_state->operands[0];
acpi_operand_object *return_desc = NULL;
acpi_status status = AE_OK;
u8 logical_result = FALSE;
FUNCTION_TRACE_STR ("Ex_opcode_2A_0T_1R", acpi_ps_get_opcode_name (walk_state->opcode));
/* Create the internal return object */
return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
if (!return_desc) {
status = AE_NO_MEMORY;
goto cleanup;
}
/*
* Execute the Opcode
*/
if (walk_state->op_info->flags & AML_LOGICAL) /* Logical_op (Operand0, Operand1) */ {
logical_result = acpi_ex_do_logical_op (walk_state->opcode,
operand[0]->integer.value,
operand[1]->integer.value);
goto store_logical_result;
}
switch (walk_state->opcode) {
case AML_ACQUIRE_OP: /* Acquire (Mutex_object, Timeout) */
status = acpi_ex_acquire_mutex (operand[1], operand[0], walk_state);
if (status == AE_TIME) {
logical_result = TRUE; /* TRUE = Acquire timed out */
status = AE_OK;
}
break;
case AML_WAIT_OP: /* Wait (Event_object, Timeout) */
status = acpi_ex_system_wait_event (operand[1], operand[0]);
if (status == AE_TIME) {
logical_result = TRUE; /* TRUE, Wait timed out */
status = AE_OK;
}
break;
default:
REPORT_ERROR (("Acpi_ex_opcode_2A_0T_1R: Unknown opcode %X\n", walk_state->opcode));
status = AE_AML_BAD_OPCODE;
goto cleanup;
break;
}
store_logical_result:
/*
* Set return value to according to Logical_result. logical TRUE (all ones)
* Default is FALSE (zero)
*/
if (logical_result) {
return_desc->integer.value = ACPI_INTEGER_MAX;
}
walk_state->result_obj = return_desc;
cleanup:
/* Delete return object on error */
if (ACPI_FAILURE (status)) {
acpi_ut_remove_reference (return_desc);
}
return_ACPI_STATUS (status);
}
acpi_status
acpi_ex_opcode_2A_2T_1R (
acpi_walk_state *walk_state)
{
acpi_operand_object **operand = &walk_state->operands[0];
acpi_operand_object *return_desc1 = NULL;
acpi_operand_object *return_desc2 = NULL;
acpi_status status;
FUNCTION_TRACE_STR ("Ex_opcode_2A_2T_1R", acpi_ps_get_opcode_name (walk_state->opcode));
/*
* Execute the opcode
*/
switch (walk_state->opcode) {
case AML_DIVIDE_OP: /* Divide (Dividend, Divisor, Remainder_result Quotient_result) */
return_desc1 = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
if (!return_desc1) {
status = AE_NO_MEMORY;
goto cleanup;
}
return_desc2 = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
if (!return_desc2) {
status = AE_NO_MEMORY;
goto cleanup;
}
/* Quotient to Return_desc1, remainder to Return_desc2 */
status = acpi_ut_divide (&operand[0]->integer.value, &operand[1]->integer.value,
&return_desc1->integer.value, &return_desc2->integer.value);
if (ACPI_FAILURE (status)) {
goto cleanup;
}
break;
default:
REPORT_ERROR (("Acpi_ex_opcode_2A_2T_1R: Unknown opcode %X\n",
walk_state->opcode));
status = AE_AML_BAD_OPCODE;
goto cleanup;
break;
}
/* Store the results to the target reference operands */
status = acpi_ex_store (return_desc2, operand[2], walk_state);
if (ACPI_FAILURE (status)) {
goto cleanup;
}
status = acpi_ex_store (return_desc1, operand[3], walk_state);
if (ACPI_FAILURE (status)) {
goto cleanup;
}
/* Return the remainder */
walk_state->result_obj = return_desc1;
cleanup:
/*
* Since the remainder is not returned indirectly, remove a reference to
* it. Only the quotient is returned indirectly.
*/
acpi_ut_remove_reference (return_desc2);
if (ACPI_FAILURE (status)) {
/* Delete the return object */
acpi_ut_remove_reference (return_desc1);
}
return_ACPI_STATUS (status);
}