*****************************************************************************/
/*
- * Copyright (C) 2000 - 2004, R. Byron Moore
+ * Copyright (C) 2000 - 2006, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* POSSIBILITY OF SUCH DAMAGES.
*/
-
#include <acpi/acpi.h>
#include <acpi/acparser.h>
#include <acpi/acdispat.h>
#include <acpi/amlcode.h>
#include <acpi/acnamesp.h>
-
#define _COMPONENT ACPI_EXECUTER
- ACPI_MODULE_NAME ("exoparg1")
-
+ACPI_MODULE_NAME("exoparg1")
/*!
* Naming convention for AML interpreter execution routines.
* Where:
*
* xA - ARGUMENTS: The number of arguments (input operands) that are
- * required for this opcode type (1 through 6 args).
+ * required for this opcode type (0 through 6 args).
* yT - TARGETS: The number of targets (output operands) that are required
* for this opcode type (0, 1, or 2 targets).
* zR - RETURN VALUE: Indicates whether this opcode type returns a value
* The AcpiExOpcode* functions are called via the Dispatcher component with
* fully resolved operands.
!*/
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_opcode_0A_0T_1R
+ *
+ * PARAMETERS: walk_state - Current state (contains AML opcode)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute operator with no operands, one return value
+ *
+ ******************************************************************************/
+acpi_status acpi_ex_opcode_0A_0T_1R(struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object *return_desc = NULL;
+
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_0A_0T_1R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
+
+ /* Examine the AML opcode */
+
+ switch (walk_state->opcode) {
+ case AML_TIMER_OP: /* Timer () */
+
+ /* Create a return object of type Integer */
+
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+#if ACPI_MACHINE_WIDTH != 16
+ return_desc->integer.value = acpi_os_get_timer();
+#endif
+ break;
+
+ default: /* Unknown opcode */
+
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
+ status = AE_AML_BAD_OPCODE;
+ break;
+ }
+
+ cleanup:
+
+ /* Delete return object on error */
+
+ if ((ACPI_FAILURE(status)) || walk_state->result_obj) {
+ acpi_ut_remove_reference(return_desc);
+ } else {
+ /* Save the return value */
+
+ walk_state->result_obj = return_desc;
+ }
+
+ return_ACPI_STATUS(status);
+}
/*******************************************************************************
*
*
******************************************************************************/
-acpi_status
-acpi_ex_opcode_1A_0T_0R (
- struct acpi_walk_state *walk_state)
+acpi_status acpi_ex_opcode_1A_0T_0R(struct acpi_walk_state *walk_state)
{
- union acpi_operand_object **operand = &walk_state->operands[0];
- acpi_status status = AE_OK;
-
-
- ACPI_FUNCTION_TRACE_STR ("ex_opcode_1A_0T_0R", acpi_ps_get_opcode_name (walk_state->opcode));
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ acpi_status status = AE_OK;
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_0R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
/* Examine the AML opcode */
switch (walk_state->opcode) {
- case AML_RELEASE_OP: /* Release (mutex_object) */
+ case AML_RELEASE_OP: /* Release (mutex_object) */
- status = acpi_ex_release_mutex (operand[0], walk_state);
+ status = acpi_ex_release_mutex(operand[0], walk_state);
break;
+ case AML_RESET_OP: /* Reset (event_object) */
- case AML_RESET_OP: /* Reset (event_object) */
-
- status = acpi_ex_system_reset_event (operand[0]);
+ status = acpi_ex_system_reset_event(operand[0]);
break;
+ case AML_SIGNAL_OP: /* Signal (event_object) */
- case AML_SIGNAL_OP: /* Signal (event_object) */
-
- status = acpi_ex_system_signal_event (operand[0]);
+ status = acpi_ex_system_signal_event(operand[0]);
break;
+ case AML_SLEEP_OP: /* Sleep (msec_time) */
- case AML_SLEEP_OP: /* Sleep (msec_time) */
-
- status = acpi_ex_system_do_suspend ((u32) operand[0]->integer.value);
+ status = acpi_ex_system_do_suspend(operand[0]->integer.value);
break;
+ case AML_STALL_OP: /* Stall (usec_time) */
- case AML_STALL_OP: /* Stall (usec_time) */
-
- status = acpi_ex_system_do_stall ((u32) operand[0]->integer.value);
+ status =
+ acpi_ex_system_do_stall((u32) operand[0]->integer.value);
break;
+ case AML_UNLOAD_OP: /* Unload (Handle) */
- case AML_UNLOAD_OP: /* Unload (Handle) */
-
- status = acpi_ex_unload_table (operand[0]);
+ status = acpi_ex_unload_table(operand[0]);
break;
+ default: /* Unknown opcode */
- default: /* Unknown opcode */
-
- ACPI_REPORT_ERROR (("acpi_ex_opcode_1A_0T_0R: Unknown opcode %X\n",
- walk_state->opcode));
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
status = AE_AML_BAD_OPCODE;
break;
}
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_opcode_1A_1T_0R
*
******************************************************************************/
-acpi_status
-acpi_ex_opcode_1A_1T_0R (
- struct acpi_walk_state *walk_state)
+acpi_status acpi_ex_opcode_1A_1T_0R(struct acpi_walk_state *walk_state)
{
- acpi_status status = AE_OK;
- union acpi_operand_object **operand = &walk_state->operands[0];
-
-
- ACPI_FUNCTION_TRACE_STR ("ex_opcode_1A_1T_0R", acpi_ps_get_opcode_name (walk_state->opcode));
+ acpi_status status = AE_OK;
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_0R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
/* Examine the AML opcode */
switch (walk_state->opcode) {
case AML_LOAD_OP:
- status = acpi_ex_load_op (operand[0], operand[1], walk_state);
+ status = acpi_ex_load_op(operand[0], operand[1], walk_state);
break;
- default: /* Unknown opcode */
+ default: /* Unknown opcode */
- ACPI_REPORT_ERROR (("acpi_ex_opcode_1A_1T_0R: Unknown opcode %X\n",
- walk_state->opcode));
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
status = AE_AML_BAD_OPCODE;
goto cleanup;
}
+ cleanup:
-cleanup:
-
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_opcode_1A_1T_1R
*
******************************************************************************/
-acpi_status
-acpi_ex_opcode_1A_1T_1R (
- struct acpi_walk_state *walk_state)
+acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
{
- acpi_status status = AE_OK;
- union acpi_operand_object **operand = &walk_state->operands[0];
- union acpi_operand_object *return_desc = NULL;
- union acpi_operand_object *return_desc2 = NULL;
- u32 temp32;
- u32 i;
- u32 power_of_ten;
- acpi_integer digit;
-
-
- ACPI_FUNCTION_TRACE_STR ("ex_opcode_1A_1T_1R", acpi_ps_get_opcode_name (walk_state->opcode));
-
+ acpi_status status = AE_OK;
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ union acpi_operand_object *return_desc = NULL;
+ union acpi_operand_object *return_desc2 = NULL;
+ u32 temp32;
+ u32 i;
+ acpi_integer power_of_ten;
+ acpi_integer digit;
+
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_1R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
/* Examine the AML opcode */
/* Create a return object of type Integer for these opcodes */
- return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
if (!return_desc) {
status = AE_NO_MEMORY;
goto cleanup;
}
switch (walk_state->opcode) {
- case AML_BIT_NOT_OP: /* Not (Operand, Result) */
+ case AML_BIT_NOT_OP: /* Not (Operand, Result) */
return_desc->integer.value = ~operand[0]->integer.value;
break;
-
- case AML_FIND_SET_LEFT_BIT_OP: /* find_set_left_bit (Operand, Result) */
+ case AML_FIND_SET_LEFT_BIT_OP: /* find_set_left_bit (Operand, Result) */
return_desc->integer.value = operand[0]->integer.value;
* Acpi specification describes Integer type as a little
* endian unsigned value, so this boundary condition is valid.
*/
- for (temp32 = 0; return_desc->integer.value && temp32 < ACPI_INTEGER_BIT_SIZE; ++temp32) {
+ for (temp32 = 0; return_desc->integer.value &&
+ temp32 < ACPI_INTEGER_BIT_SIZE; ++temp32) {
return_desc->integer.value >>= 1;
}
return_desc->integer.value = temp32;
break;
-
- case AML_FIND_SET_RIGHT_BIT_OP: /* find_set_right_bit (Operand, Result) */
+ case AML_FIND_SET_RIGHT_BIT_OP: /* find_set_right_bit (Operand, Result) */
return_desc->integer.value = operand[0]->integer.value;
* The Acpi specification describes Integer type as a little
* endian unsigned value, so this boundary condition is valid.
*/
- for (temp32 = 0; return_desc->integer.value && temp32 < ACPI_INTEGER_BIT_SIZE; ++temp32) {
+ for (temp32 = 0; return_desc->integer.value &&
+ temp32 < ACPI_INTEGER_BIT_SIZE; ++temp32) {
return_desc->integer.value <<= 1;
}
/* Since the bit position is one-based, subtract from 33 (65) */
- return_desc->integer.value = temp32 == 0 ? 0 : (ACPI_INTEGER_BIT_SIZE + 1) - temp32;
+ return_desc->integer.value =
+ temp32 ==
+ 0 ? 0 : (ACPI_INTEGER_BIT_SIZE + 1) - temp32;
break;
-
- case AML_FROM_BCD_OP: /* from_bcd (BCDValue, Result) */
+ case AML_FROM_BCD_OP: /* from_bcd (BCDValue, Result) */
/*
* The 64-bit ACPI integer can hold 16 4-bit BCD characters
/* Convert each BCD digit (each is one nybble wide) */
- for (i = 0; (i < acpi_gbl_integer_nybble_width) && (digit > 0); i++) {
+ for (i = 0;
+ (i < acpi_gbl_integer_nybble_width) && (digit > 0);
+ i++) {
+
/* Get the least significant 4-bit BCD digit */
temp32 = ((u32) digit) & 0xF;
/* Check the range of the digit */
if (temp32 > 9) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "BCD digit too large (not decimal): 0x%X\n",
- temp32));
+ ACPI_ERROR((AE_INFO,
+ "BCD digit too large (not decimal): 0x%X",
+ temp32));
status = AE_AML_NUMERIC_OVERFLOW;
goto cleanup;
/* Sum the digit into the result with the current power of 10 */
- return_desc->integer.value += (((acpi_integer) temp32) * power_of_ten);
+ return_desc->integer.value +=
+ (((acpi_integer) temp32) * power_of_ten);
/* Shift to next BCD digit */
}
break;
-
- case AML_TO_BCD_OP: /* to_bcd (Operand, Result) */
+ case AML_TO_BCD_OP: /* to_bcd (Operand, Result) */
return_desc->integer.value = 0;
digit = operand[0]->integer.value;
/* Each BCD digit is one nybble wide */
- for (i = 0; (i < acpi_gbl_integer_nybble_width) && (digit > 0); i++) {
- (void) acpi_ut_short_divide (&digit, 10, &digit, &temp32);
-
- /* Insert the BCD digit that resides in the remainder from above */
+ for (i = 0;
+ (i < acpi_gbl_integer_nybble_width) && (digit > 0);
+ i++) {
+ (void)acpi_ut_short_divide(digit, 10, &digit,
+ &temp32);
- return_desc->integer.value |= (((acpi_integer) temp32) << (i * 4));
+ /*
+ * Insert the BCD digit that resides in the
+ * remainder from above
+ */
+ return_desc->integer.value |=
+ (((acpi_integer) temp32) << ACPI_MUL_4(i));
}
/* Overflow if there is any data left in Digit */
if (digit > 0) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Integer too large to convert to BCD: %8.8X%8.8X\n",
- ACPI_FORMAT_UINT64 (operand[0]->integer.value)));
+ ACPI_ERROR((AE_INFO,
+ "Integer too large to convert to BCD: %8.8X%8.8X",
+ ACPI_FORMAT_UINT64(operand[0]->
+ integer.value)));
status = AE_AML_NUMERIC_OVERFLOW;
goto cleanup;
}
break;
-
- case AML_COND_REF_OF_OP: /* cond_ref_of (source_object, Result) */
+ case AML_COND_REF_OF_OP: /* cond_ref_of (source_object, Result) */
/*
* This op is a little strange because the internal return value is
* different than the return value stored in the result descriptor
* (There are really two return values)
*/
- if ((struct acpi_namespace_node *) operand[0] == acpi_gbl_root_node) {
+ if ((struct acpi_namespace_node *)operand[0] ==
+ acpi_gbl_root_node) {
/*
* This means that the object does not exist in the namespace,
* return FALSE
/* Get the object reference, store it, and remove our reference */
- status = acpi_ex_get_object_reference (operand[0], &return_desc2, walk_state);
- if (ACPI_FAILURE (status)) {
+ status = acpi_ex_get_object_reference(operand[0],
+ &return_desc2,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
goto cleanup;
}
- status = acpi_ex_store (return_desc2, operand[1], walk_state);
- acpi_ut_remove_reference (return_desc2);
+ status =
+ acpi_ex_store(return_desc2, operand[1], walk_state);
+ acpi_ut_remove_reference(return_desc2);
/* The object exists in the namespace, return TRUE */
return_desc->integer.value = ACPI_INTEGER_MAX;
goto cleanup;
-
default:
/* No other opcodes get here */
break;
}
break;
-
- case AML_STORE_OP: /* Store (Source, Target) */
+ case AML_STORE_OP: /* Store (Source, Target) */
/*
* A store operand is typically a number, string, buffer or lvalue
* Be careful about deleting the source object,
* since the object itself may have been stored.
*/
- status = acpi_ex_store (operand[0], operand[1], walk_state);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status = acpi_ex_store(operand[0], operand[1], walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
/* It is possible that the Store already produced a return object */
if (!walk_state->result_obj) {
/*
- * Normally, we would remove a reference on the Operand[0] parameter;
- * But since it is being used as the internal return object
- * (meaning we would normally increment it), the two cancel out,
- * and we simply don't do anything.
+ * Normally, we would remove a reference on the Operand[0]
+ * parameter; But since it is being used as the internal return
+ * object (meaning we would normally increment it), the two
+ * cancel out, and we simply don't do anything.
*/
walk_state->result_obj = operand[0];
- walk_state->operands[0] = NULL; /* Prevent deletion */
+ walk_state->operands[0] = NULL; /* Prevent deletion */
}
- return_ACPI_STATUS (status);
-
+ return_ACPI_STATUS(status);
- /*
- * ACPI 2.0 Opcodes
- */
- case AML_COPY_OP: /* Copy (Source, Target) */
+ /*
+ * ACPI 2.0 Opcodes
+ */
+ case AML_COPY_OP: /* Copy (Source, Target) */
- status = acpi_ut_copy_iobject_to_iobject (operand[0], &return_desc, walk_state);
+ status =
+ acpi_ut_copy_iobject_to_iobject(operand[0], &return_desc,
+ walk_state);
break;
+ case AML_TO_DECSTRING_OP: /* to_decimal_string (Data, Result) */
- case AML_TO_DECSTRING_OP: /* to_decimal_string (Data, Result) */
+ status = acpi_ex_convert_to_string(operand[0], &return_desc,
+ ACPI_EXPLICIT_CONVERT_DECIMAL);
+ if (return_desc == operand[0]) {
- status = acpi_ex_convert_to_string (operand[0], &return_desc, 10, ACPI_UINT32_MAX, walk_state);
+ /* No conversion performed, add ref to handle return value */
+ acpi_ut_add_reference(return_desc);
+ }
break;
+ case AML_TO_HEXSTRING_OP: /* to_hex_string (Data, Result) */
- case AML_TO_HEXSTRING_OP: /* to_hex_string (Data, Result) */
+ status = acpi_ex_convert_to_string(operand[0], &return_desc,
+ ACPI_EXPLICIT_CONVERT_HEX);
+ if (return_desc == operand[0]) {
- status = acpi_ex_convert_to_string (operand[0], &return_desc, 16, ACPI_UINT32_MAX, walk_state);
+ /* No conversion performed, add ref to handle return value */
+ acpi_ut_add_reference(return_desc);
+ }
break;
+ case AML_TO_BUFFER_OP: /* to_buffer (Data, Result) */
- case AML_TO_BUFFER_OP: /* to_buffer (Data, Result) */
+ status = acpi_ex_convert_to_buffer(operand[0], &return_desc);
+ if (return_desc == operand[0]) {
- status = acpi_ex_convert_to_buffer (operand[0], &return_desc, walk_state);
+ /* No conversion performed, add ref to handle return value */
+ acpi_ut_add_reference(return_desc);
+ }
break;
+ case AML_TO_INTEGER_OP: /* to_integer (Data, Result) */
- case AML_TO_INTEGER_OP: /* to_integer (Data, Result) */
+ status = acpi_ex_convert_to_integer(operand[0], &return_desc,
+ ACPI_ANY_BASE);
+ if (return_desc == operand[0]) {
- status = acpi_ex_convert_to_integer (operand[0], &return_desc, walk_state);
+ /* No conversion performed, add ref to handle return value */
+ acpi_ut_add_reference(return_desc);
+ }
break;
+ case AML_SHIFT_LEFT_BIT_OP: /* shift_left_bit (Source, bit_num) */
+ case AML_SHIFT_RIGHT_BIT_OP: /* shift_right_bit (Source, bit_num) */
- case AML_SHIFT_LEFT_BIT_OP: /* shift_left_bit (Source, bit_num) */
- case AML_SHIFT_RIGHT_BIT_OP: /* shift_right_bit (Source, bit_num) */
+ /* These are two obsolete opcodes */
- /*
- * These are two obsolete opcodes
- */
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "%s is obsolete and not implemented\n",
- acpi_ps_get_opcode_name (walk_state->opcode)));
+ ACPI_ERROR((AE_INFO,
+ "%s is obsolete and not implemented",
+ acpi_ps_get_opcode_name(walk_state->opcode)));
status = AE_SUPPORT;
goto cleanup;
+ default: /* Unknown opcode */
- default: /* Unknown opcode */
-
- ACPI_REPORT_ERROR (("acpi_ex_opcode_1A_1T_1R: Unknown opcode %X\n",
- walk_state->opcode));
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
status = AE_AML_BAD_OPCODE;
goto cleanup;
}
- /*
- * Store the return value computed above into the target object
- */
- status = acpi_ex_store (return_desc, operand[1], walk_state);
+ if (ACPI_SUCCESS(status)) {
+ /* Store the return value computed above into the target object */
-cleanup:
-
- if (!walk_state->result_obj) {
- walk_state->result_obj = return_desc;
+ status = acpi_ex_store(return_desc, operand[1], walk_state);
}
+ cleanup:
+
/* Delete return object on error */
- if (ACPI_FAILURE (status)) {
- acpi_ut_remove_reference (return_desc);
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_remove_reference(return_desc);
}
- return_ACPI_STATUS (status);
-}
+ /* Save return object on success */
+ else if (!walk_state->result_obj) {
+ walk_state->result_obj = return_desc;
+ }
+
+ return_ACPI_STATUS(status);
+}
/*******************************************************************************
*
*
******************************************************************************/
-acpi_status
-acpi_ex_opcode_1A_0T_1R (
- struct acpi_walk_state *walk_state)
+acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
{
- union acpi_operand_object **operand = &walk_state->operands[0];
- union acpi_operand_object *temp_desc;
- union acpi_operand_object *return_desc = NULL;
- acpi_status status = AE_OK;
- u32 type;
- acpi_integer value;
-
-
- ACPI_FUNCTION_TRACE_STR ("ex_opcode_1A_0T_1R", acpi_ps_get_opcode_name (walk_state->opcode));
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ union acpi_operand_object *temp_desc;
+ union acpi_operand_object *return_desc = NULL;
+ acpi_status status = AE_OK;
+ u32 type;
+ acpi_integer value;
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_1R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
/* Examine the AML opcode */
switch (walk_state->opcode) {
- case AML_LNOT_OP: /* LNot (Operand) */
+ case AML_LNOT_OP: /* LNot (Operand) */
- return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
if (!return_desc) {
status = AE_NO_MEMORY;
goto cleanup;
}
- return_desc->integer.value = !operand[0]->integer.value;
+ /*
+ * Set result to ONES (TRUE) if Value == 0. Note:
+ * return_desc->Integer.Value is initially == 0 (FALSE) from above.
+ */
+ if (!operand[0]->integer.value) {
+ return_desc->integer.value = ACPI_INTEGER_MAX;
+ }
break;
+ case AML_DECREMENT_OP: /* Decrement (Operand) */
+ case AML_INCREMENT_OP: /* Increment (Operand) */
- case AML_DECREMENT_OP: /* Decrement (Operand) */
- case AML_INCREMENT_OP: /* Increment (Operand) */
+ /*
+ * Create a new integer. Can't just get the base integer and
+ * increment it because it may be an Arg or Field.
+ */
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
/*
- * Since we are expecting a Reference operand, it
- * can be either a NS Node or an internal object.
+ * Since we are expecting a Reference operand, it can be either a
+ * NS Node or an internal object.
*/
- return_desc = operand[0];
- if (ACPI_GET_DESCRIPTOR_TYPE (operand[0]) == ACPI_DESC_TYPE_OPERAND) {
+ temp_desc = operand[0];
+ if (ACPI_GET_DESCRIPTOR_TYPE(temp_desc) ==
+ ACPI_DESC_TYPE_OPERAND) {
+
/* Internal reference object - prevent deletion */
- acpi_ut_add_reference (return_desc);
+ acpi_ut_add_reference(temp_desc);
}
/*
- * Convert the return_desc Reference to a Number
- * (This removes a reference on the return_desc object)
+ * Convert the Reference operand to an Integer (This removes a
+ * reference on the Operand[0] object)
+ *
+ * NOTE: We use LNOT_OP here in order to force resolution of the
+ * reference operand to an actual integer.
*/
- status = acpi_ex_resolve_operands (AML_LNOT_OP, &return_desc, walk_state);
- if (ACPI_FAILURE (status)) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "%s: bad operand(s) %s\n",
- acpi_ps_get_opcode_name (walk_state->opcode), acpi_format_exception(status)));
+ status =
+ acpi_ex_resolve_operands(AML_LNOT_OP, &temp_desc,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "While resolving operands for [%s]",
+ acpi_ps_get_opcode_name(walk_state->
+ opcode)));
goto cleanup;
}
/*
- * return_desc is now guaranteed to be an Integer object
- * Do the actual increment or decrement
+ * temp_desc is now guaranteed to be an Integer object --
+ * Perform the actual increment or decrement
*/
- if (AML_INCREMENT_OP == walk_state->opcode) {
- return_desc->integer.value++;
- }
- else {
- return_desc->integer.value--;
+ if (walk_state->opcode == AML_INCREMENT_OP) {
+ return_desc->integer.value =
+ temp_desc->integer.value + 1;
+ } else {
+ return_desc->integer.value =
+ temp_desc->integer.value - 1;
}
- /* Store the result back in the original descriptor */
+ /* Finished with this Integer object */
- status = acpi_ex_store (return_desc, operand[0], walk_state);
+ acpi_ut_remove_reference(temp_desc);
+
+ /*
+ * Store the result back (indirectly) through the original
+ * Reference object
+ */
+ status = acpi_ex_store(return_desc, operand[0], walk_state);
break;
+ case AML_TYPE_OP: /* object_type (source_object) */
- case AML_TYPE_OP: /* object_type (source_object) */
+ /*
+ * Note: The operand is not resolved at this point because we want to
+ * get the associated object, not its value. For example, we don't
+ * want to resolve a field_unit to its value, we want the actual
+ * field_unit object.
+ */
/* Get the type of the base object */
- status = acpi_ex_resolve_multiple (walk_state, operand[0], &type, NULL);
- if (ACPI_FAILURE (status)) {
+ status =
+ acpi_ex_resolve_multiple(walk_state, operand[0], &type,
+ NULL);
+ if (ACPI_FAILURE(status)) {
goto cleanup;
}
/* Allocate a descriptor to hold the type. */
- return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
if (!return_desc) {
status = AE_NO_MEMORY;
goto cleanup;
return_desc->integer.value = type;
break;
+ case AML_SIZE_OF_OP: /* size_of (source_object) */
- case AML_SIZE_OF_OP: /* size_of (source_object) */
+ /*
+ * Note: The operand is not resolved at this point because we want to
+ * get the associated object, not its value.
+ */
/* Get the base object */
- status = acpi_ex_resolve_multiple (walk_state, operand[0], &type, &temp_desc);
- if (ACPI_FAILURE (status)) {
+ status = acpi_ex_resolve_multiple(walk_state,
+ operand[0], &type,
+ &temp_desc);
+ if (ACPI_FAILURE(status)) {
goto cleanup;
}
/*
- * Type is guaranteed to be a buffer, string, or package at this
- * point (even if the original operand was an object reference, it
- * will be resolved and typechecked during operand resolution.)
+ * The type of the base object must be integer, buffer, string, or
+ * package. All others are not supported.
+ *
+ * NOTE: Integer is not specifically supported by the ACPI spec,
+ * but is supported implicitly via implicit operand conversion.
+ * rather than bother with conversion, we just use the byte width
+ * global (4 or 8 bytes).
*/
switch (type) {
+ case ACPI_TYPE_INTEGER:
+ value = acpi_gbl_integer_byte_width;
+ break;
+
case ACPI_TYPE_BUFFER:
value = temp_desc->buffer.length;
break;
break;
default:
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "size_of, Not Buf/Str/Pkg - found type %s\n",
- acpi_ut_get_type_name (type)));
+ ACPI_ERROR((AE_INFO,
+ "Operand is not Buf/Int/Str/Pkg - found type %s",
+ acpi_ut_get_type_name(type)));
status = AE_AML_OPERAND_TYPE;
goto cleanup;
}
* Now that we have the size of the object, create a result
* object to hold the value
*/
- return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
if (!return_desc) {
status = AE_NO_MEMORY;
goto cleanup;
return_desc->integer.value = value;
break;
+ case AML_REF_OF_OP: /* ref_of (source_object) */
- case AML_REF_OF_OP: /* ref_of (source_object) */
-
- status = acpi_ex_get_object_reference (operand[0], &return_desc, walk_state);
- if (ACPI_FAILURE (status)) {
+ status =
+ acpi_ex_get_object_reference(operand[0], &return_desc,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
goto cleanup;
}
break;
-
- case AML_DEREF_OF_OP: /* deref_of (obj_reference | String) */
+ case AML_DEREF_OF_OP: /* deref_of (obj_reference | String) */
/* Check for a method local or argument, or standalone String */
- if (ACPI_GET_DESCRIPTOR_TYPE (operand[0]) != ACPI_DESC_TYPE_NAMED) {
- switch (ACPI_GET_OBJECT_TYPE (operand[0])) {
+ if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) ==
+ ACPI_DESC_TYPE_NAMED) {
+ temp_desc =
+ acpi_ns_get_attached_object((struct
+ acpi_namespace_node *)
+ operand[0]);
+ if (temp_desc
+ &&
+ ((ACPI_GET_OBJECT_TYPE(temp_desc) ==
+ ACPI_TYPE_STRING)
+ || (ACPI_GET_OBJECT_TYPE(temp_desc) ==
+ ACPI_TYPE_LOCAL_REFERENCE))) {
+ operand[0] = temp_desc;
+ acpi_ut_add_reference(temp_desc);
+ } else {
+ status = AE_AML_OPERAND_TYPE;
+ goto cleanup;
+ }
+ } else {
+ switch (ACPI_GET_OBJECT_TYPE(operand[0])) {
case ACPI_TYPE_LOCAL_REFERENCE:
/*
* This is a deref_of (local_x | arg_x)
/* Set Operand[0] to the value of the local/arg */
- status = acpi_ds_method_data_get_value (operand[0]->reference.opcode,
- operand[0]->reference.offset, walk_state, &temp_desc);
- if (ACPI_FAILURE (status)) {
+ status =
+ acpi_ds_method_data_get_value
+ (operand[0]->reference.opcode,
+ operand[0]->reference.offset,
+ walk_state, &temp_desc);
+ if (ACPI_FAILURE(status)) {
goto cleanup;
}
* Delete our reference to the input object and
* point to the object just retrieved
*/
- acpi_ut_remove_reference (operand[0]);
+ acpi_ut_remove_reference(operand[0]);
operand[0] = temp_desc;
break;
/* Get the object to which the reference refers */
- temp_desc = operand[0]->reference.object;
- acpi_ut_remove_reference (operand[0]);
+ temp_desc =
+ operand[0]->reference.object;
+ acpi_ut_remove_reference(operand[0]);
operand[0] = temp_desc;
break;
}
break;
-
case ACPI_TYPE_STRING:
+ break;
+
+ default:
+ status = AE_AML_OPERAND_TYPE;
+ goto cleanup;
+ }
+ }
+ if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) !=
+ ACPI_DESC_TYPE_NAMED) {
+ if (ACPI_GET_OBJECT_TYPE(operand[0]) ==
+ ACPI_TYPE_STRING) {
/*
- * This is a deref_of (String). The string is a reference to a named ACPI object.
+ * This is a deref_of (String). The string is a reference
+ * to a named ACPI object.
*
* 1) Find the owning Node
- * 2) Dereference the node to an actual object. Could be a Field, so we nee
- * to resolve the node to a value.
+ * 2) Dereference the node to an actual object. Could be a
+ * Field, so we need to resolve the node to a value.
*/
- status = acpi_ns_get_node_by_path (operand[0]->string.pointer,
- walk_state->scope_info->scope.node, ACPI_NS_SEARCH_PARENT,
- ACPI_CAST_INDIRECT_PTR (struct acpi_namespace_node, &return_desc));
- if (ACPI_FAILURE (status)) {
+ status =
+ acpi_ns_get_node(walk_state->scope_info->
+ scope.node,
+ operand[0]->string.pointer,
+ ACPI_NS_SEARCH_PARENT,
+ ACPI_CAST_INDIRECT_PTR
+ (struct
+ acpi_namespace_node,
+ &return_desc));
+ if (ACPI_FAILURE(status)) {
goto cleanup;
}
- status = acpi_ex_resolve_node_to_value (
- ACPI_CAST_INDIRECT_PTR (struct acpi_namespace_node, &return_desc), walk_state);
- goto cleanup;
-
-
- default:
-
- status = AE_AML_OPERAND_TYPE;
+ status =
+ acpi_ex_resolve_node_to_value
+ (ACPI_CAST_INDIRECT_PTR
+ (struct acpi_namespace_node, &return_desc),
+ walk_state);
goto cleanup;
}
}
/* Operand[0] may have changed from the code above */
- if (ACPI_GET_DESCRIPTOR_TYPE (operand[0]) == ACPI_DESC_TYPE_NAMED) {
+ if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) ==
+ ACPI_DESC_TYPE_NAMED) {
/*
* This is a deref_of (object_reference)
* Get the actual object from the Node (This is the dereference).
- * -- This case may only happen when a local_x or arg_x is dereferenced above.
+ * This case may only happen when a local_x or arg_x is
+ * dereferenced above.
*/
- return_desc = acpi_ns_get_attached_object ((struct acpi_namespace_node *) operand[0]);
- }
- else {
+ return_desc = acpi_ns_get_attached_object((struct
+ acpi_namespace_node
+ *)
+ operand[0]);
+ acpi_ut_add_reference(return_desc);
+ } else {
/*
- * This must be a reference object produced by either the Index() or
- * ref_of() operator
+ * This must be a reference object produced by either the
+ * Index() or ref_of() operator
*/
switch (operand[0]->reference.opcode) {
case AML_INDEX_OP:
switch (operand[0]->reference.target_type) {
case ACPI_TYPE_BUFFER_FIELD:
- temp_desc = operand[0]->reference.object;
+ temp_desc =
+ operand[0]->reference.object;
/*
* Create a new object that contains one element of the
* sub-buffer of the main buffer, it is only a pointer to a
* single element (byte) of the buffer!
*/
- return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
+ return_desc =
+ acpi_ut_create_internal_object
+ (ACPI_TYPE_INTEGER);
if (!return_desc) {
status = AE_NO_MEMORY;
goto cleanup;
* reference to the buffer itself.
*/
return_desc->integer.value =
- temp_desc->buffer.pointer[operand[0]->reference.offset];
+ temp_desc->buffer.
+ pointer[operand[0]->reference.
+ offset];
break;
-
case ACPI_TYPE_PACKAGE:
/*
- * Return the referenced element of the package. We must add
- * another reference to the referenced object, however.
+ * Return the referenced element of the package. We must
+ * add another reference to the referenced object, however.
*/
- return_desc = *(operand[0]->reference.where);
- if (!return_desc) {
- /*
- * We can't return a NULL dereferenced value. This is
- * an uninitialized package element and is thus a
- * severe error.
- */
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "NULL package element obj %p\n",
- operand[0]));
- status = AE_AML_UNINITIALIZED_ELEMENT;
- goto cleanup;
+ return_desc =
+ *(operand[0]->reference.where);
+ if (return_desc) {
+ acpi_ut_add_reference
+ (return_desc);
}
-
- acpi_ut_add_reference (return_desc);
break;
-
default:
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown Index target_type %X in obj %p\n",
- operand[0]->reference.target_type, operand[0]));
+ ACPI_ERROR((AE_INFO,
+ "Unknown Index TargetType %X in obj %p",
+ operand[0]->reference.
+ target_type, operand[0]));
status = AE_AML_OPERAND_TYPE;
goto cleanup;
}
break;
-
case AML_REF_OF_OP:
return_desc = operand[0]->reference.object;
- if (ACPI_GET_DESCRIPTOR_TYPE (return_desc) == ACPI_DESC_TYPE_NAMED) {
-
- return_desc = acpi_ns_get_attached_object ((struct acpi_namespace_node *) return_desc);
+ if (ACPI_GET_DESCRIPTOR_TYPE(return_desc) ==
+ ACPI_DESC_TYPE_NAMED) {
+ return_desc =
+ acpi_ns_get_attached_object((struct
+ acpi_namespace_node
+ *)
+ return_desc);
}
/* Add another reference to the object! */
- acpi_ut_add_reference (return_desc);
+ acpi_ut_add_reference(return_desc);
break;
-
default:
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown opcode in ref(%p) - %X\n",
- operand[0], operand[0]->reference.opcode));
+ ACPI_ERROR((AE_INFO,
+ "Unknown opcode in reference(%p) - %X",
+ operand[0],
+ operand[0]->reference.opcode));
status = AE_TYPE;
goto cleanup;
}
break;
-
default:
- ACPI_REPORT_ERROR (("acpi_ex_opcode_1A_0T_1R: Unknown opcode %X\n",
- walk_state->opcode));
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
status = AE_AML_BAD_OPCODE;
goto cleanup;
}
-
-cleanup:
+ cleanup:
/* Delete return object on error */
- if (ACPI_FAILURE (status)) {
- acpi_ut_remove_reference (return_desc);
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_remove_reference(return_desc);
}
- walk_state->result_obj = return_desc;
- return_ACPI_STATUS (status);
-}
+ /* Save return object on success */
+ else {
+ walk_state->result_obj = return_desc;
+ }
+
+ return_ACPI_STATUS(status);
+}