*****************************************************************************/
/*
- * Copyright (C) 2000 - 2005, 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.
*/
-
/*
* DEFINE_AML_GLOBALS is tested in amlcode.h
* to determine whether certain global names should be "defined" or only
#include <acpi/acevents.h>
#define _COMPONENT ACPI_EXECUTER
- ACPI_MODULE_NAME ("exutils")
+ACPI_MODULE_NAME("exutils")
+/* Local prototypes */
+static u32 acpi_ex_digits_needed(acpi_integer value, u32 base);
#ifndef ACPI_NO_METHOD_EXECUTION
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_enter_interpreter
*
* PARAMETERS: None
*
+ * RETURN: Status
+ *
* DESCRIPTION: Enter the interpreter execution region. Failure to enter
* the interpreter region is a fatal system error
*
******************************************************************************/
-acpi_status
-acpi_ex_enter_interpreter (void)
+acpi_status acpi_ex_enter_interpreter(void)
{
- acpi_status status;
+ acpi_status status;
- ACPI_FUNCTION_TRACE ("ex_enter_interpreter");
+ ACPI_FUNCTION_TRACE("ex_enter_interpreter");
-
- status = acpi_ut_acquire_mutex (ACPI_MTX_EXECUTE);
- if (ACPI_FAILURE (status)) {
- ACPI_REPORT_ERROR (("Could not acquire interpreter mutex\n"));
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EXECUTE);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR((AE_INFO, "Could not acquire interpreter mutex"));
}
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_exit_interpreter
*
* PARAMETERS: None
*
+ * RETURN: None
+ *
* DESCRIPTION: Exit the interpreter execution region
*
* Cases where the interpreter is unlocked:
*
******************************************************************************/
-void
-acpi_ex_exit_interpreter (void)
+void acpi_ex_exit_interpreter(void)
{
- acpi_status status;
-
+ acpi_status status;
- ACPI_FUNCTION_TRACE ("ex_exit_interpreter");
+ ACPI_FUNCTION_TRACE("ex_exit_interpreter");
-
- status = acpi_ut_release_mutex (ACPI_MTX_EXECUTE);
- if (ACPI_FAILURE (status)) {
- ACPI_REPORT_ERROR (("Could not release interpreter mutex\n"));
+ status = acpi_ut_release_mutex(ACPI_MTX_EXECUTE);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR((AE_INFO, "Could not release interpreter mutex"));
}
return_VOID;
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_truncate_for32bit_table
*
******************************************************************************/
-void
-acpi_ex_truncate_for32bit_table (
- union acpi_operand_object *obj_desc)
+void acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc)
{
- ACPI_FUNCTION_ENTRY ();
-
+ ACPI_FUNCTION_ENTRY();
/*
* Object must be a valid number and we must be executing
* a control method
*/
if ((!obj_desc) ||
- (ACPI_GET_OBJECT_TYPE (obj_desc) != ACPI_TYPE_INTEGER)) {
+ (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER)) {
return;
}
}
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_acquire_global_lock
*
******************************************************************************/
-u8
-acpi_ex_acquire_global_lock (
- u32 field_flags)
+u8 acpi_ex_acquire_global_lock(u32 field_flags)
{
- u8 locked = FALSE;
- acpi_status status;
-
-
- ACPI_FUNCTION_TRACE ("ex_acquire_global_lock");
+ u8 locked = FALSE;
+ acpi_status status;
+ ACPI_FUNCTION_TRACE("ex_acquire_global_lock");
/* Only attempt lock if the always_lock bit is set */
if (field_flags & AML_FIELD_LOCK_RULE_MASK) {
/* We should attempt to get the lock, wait forever */
- status = acpi_ev_acquire_global_lock (ACPI_WAIT_FOREVER);
- if (ACPI_SUCCESS (status)) {
+ status = acpi_ev_acquire_global_lock(ACPI_WAIT_FOREVER);
+ if (ACPI_SUCCESS(status)) {
locked = TRUE;
- }
- else {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Could not acquire Global Lock, %s\n",
- acpi_format_exception (status)));
+ } else {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not acquire Global Lock"));
}
}
- return_VALUE (locked);
+ return_UINT8(locked);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_release_global_lock
* PARAMETERS: locked_by_me - Return value from corresponding call to
* acquire_global_lock.
*
- * RETURN: Status
+ * RETURN: None
*
* DESCRIPTION: Release the global lock if it is locked.
*
******************************************************************************/
-void
-acpi_ex_release_global_lock (
- u8 locked_by_me)
+void acpi_ex_release_global_lock(u8 locked_by_me)
{
- acpi_status status;
-
-
- ACPI_FUNCTION_TRACE ("ex_release_global_lock");
+ acpi_status status;
+ ACPI_FUNCTION_TRACE("ex_release_global_lock");
/* Only attempt unlock if the caller locked it */
if (locked_by_me) {
/* OK, now release the lock */
- status = acpi_ev_release_global_lock ();
- if (ACPI_FAILURE (status)) {
+ status = acpi_ev_release_global_lock();
+ if (ACPI_FAILURE(status)) {
/* Report the error, but there isn't much else we can do */
- ACPI_REPORT_ERROR (("Could not release ACPI Global Lock, %s\n",
- acpi_format_exception (status)));
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not release ACPI Global Lock"));
}
}
return_VOID;
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_digits_needed
* PARAMETERS: Value - Value to be represented
* Base - Base of representation
*
- * RETURN: the number of digits needed to represent Value in Base
+ * RETURN: The number of digits.
+ *
+ * DESCRIPTION: Calculate the number of digits needed to represent the Value
+ * in the given Base (Radix)
*
******************************************************************************/
-u32
-acpi_ex_digits_needed (
- acpi_integer value,
- u32 base)
+static u32 acpi_ex_digits_needed(acpi_integer value, u32 base)
{
- u32 num_digits;
- acpi_integer current_value;
-
-
- ACPI_FUNCTION_TRACE ("ex_digits_needed");
+ u32 num_digits;
+ acpi_integer current_value;
+ ACPI_FUNCTION_TRACE("ex_digits_needed");
/* acpi_integer is unsigned, so we don't worry about a '-' prefix */
if (value == 0) {
- return_VALUE (1);
+ return_UINT32(1);
}
current_value = value;
/* Count the digits in the requested base */
while (current_value) {
- (void) acpi_ut_short_divide (current_value, base, ¤t_value, NULL);
+ (void)acpi_ut_short_divide(current_value, base, ¤t_value,
+ NULL);
num_digits++;
}
- return_VALUE (num_digits);
+ return_UINT32(num_digits);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_eisa_id_to_string
* PARAMETERS: numeric_id - EISA ID to be converted
* out_string - Where to put the converted string (8 bytes)
*
+ * RETURN: None
+ *
* DESCRIPTION: Convert a numeric EISA ID to string representation
*
******************************************************************************/
-void
-acpi_ex_eisa_id_to_string (
- u32 numeric_id,
- char *out_string)
+void acpi_ex_eisa_id_to_string(u32 numeric_id, char *out_string)
{
- u32 eisa_id;
-
-
- ACPI_FUNCTION_ENTRY ();
+ u32 eisa_id;
+ ACPI_FUNCTION_ENTRY();
/* Swap ID to big-endian to get contiguous bits */
- eisa_id = acpi_ut_dword_byte_swap (numeric_id);
+ eisa_id = acpi_ut_dword_byte_swap(numeric_id);
- out_string[0] = (char) ('@' + (((unsigned long) eisa_id >> 26) & 0x1f));
- out_string[1] = (char) ('@' + ((eisa_id >> 21) & 0x1f));
- out_string[2] = (char) ('@' + ((eisa_id >> 16) & 0x1f));
- out_string[3] = acpi_ut_hex_to_ascii_char ((acpi_integer) eisa_id, 12);
- out_string[4] = acpi_ut_hex_to_ascii_char ((acpi_integer) eisa_id, 8);
- out_string[5] = acpi_ut_hex_to_ascii_char ((acpi_integer) eisa_id, 4);
- out_string[6] = acpi_ut_hex_to_ascii_char ((acpi_integer) eisa_id, 0);
+ out_string[0] = (char)('@' + (((unsigned long)eisa_id >> 26) & 0x1f));
+ out_string[1] = (char)('@' + ((eisa_id >> 21) & 0x1f));
+ out_string[2] = (char)('@' + ((eisa_id >> 16) & 0x1f));
+ out_string[3] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 12);
+ out_string[4] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 8);
+ out_string[5] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 4);
+ out_string[6] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 0);
out_string[7] = 0;
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_unsigned_integer_to_string
* PARAMETERS: Value - Value to be converted
* out_string - Where to put the converted string (8 bytes)
*
- * RETURN: Convert a number to string representation
+ * RETURN: None, string
+ *
+ * DESCRIPTION: Convert a number to string representation. Assumes string
+ * buffer is large enough to hold the string.
*
******************************************************************************/
-void
-acpi_ex_unsigned_integer_to_string (
- acpi_integer value,
- char *out_string)
+void acpi_ex_unsigned_integer_to_string(acpi_integer value, char *out_string)
{
- u32 count;
- u32 digits_needed;
- u32 remainder;
-
-
- ACPI_FUNCTION_ENTRY ();
+ u32 count;
+ u32 digits_needed;
+ u32 remainder;
+ ACPI_FUNCTION_ENTRY();
- digits_needed = acpi_ex_digits_needed (value, 10);
+ digits_needed = acpi_ex_digits_needed(value, 10);
out_string[digits_needed] = 0;
for (count = digits_needed; count > 0; count--) {
- (void) acpi_ut_short_divide (value, 10, &value, &remainder);
- out_string[count-1] = (char) ('0' + remainder);\
+ (void)acpi_ut_short_divide(value, 10, &value, &remainder);
+ out_string[count - 1] = (char)('0' + remainder);
}
}
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