#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME ("exnames")
+/* Local prototypes */
-/* AML Package Length encodings */
+static char *
+acpi_ex_allocate_name_string (
+ u32 prefix_count,
+ u32 num_name_segs);
-#define ACPI_AML_PACKAGE_TYPE1 0x40
-#define ACPI_AML_PACKAGE_TYPE2 0x4000
-#define ACPI_AML_PACKAGE_TYPE3 0x400000
-#define ACPI_AML_PACKAGE_TYPE4 0x40000000
+static acpi_status
+acpi_ex_name_segment (
+ u8 **in_aml_address,
+ char *name_string);
/*******************************************************************************
* FUNCTION: acpi_ex_allocate_name_string
*
* PARAMETERS: prefix_count - Count of parent levels. Special cases:
- * (-1) = root, 0 = none
+ * (-1)==root, 0==none
* num_name_segs - count of 4-character name segments
*
* RETURN: A pointer to the allocated string segment. This segment must
*
******************************************************************************/
-char *
+static char *
acpi_ex_allocate_name_string (
u32 prefix_count,
u32 num_name_segs)
/*
- * Allow room for all \ and ^ prefixes, all segments, and a multi_name_prefix.
+ * Allow room for all \ and ^ prefixes, all segments and a multi_name_prefix.
* Also, one byte for the null terminator.
* This may actually be somewhat longer than needed.
*/
*/
name_string = ACPI_MEM_ALLOCATE (size_needed);
if (!name_string) {
- ACPI_REPORT_ERROR (("ex_allocate_name_string: Could not allocate size %d\n", size_needed));
+ ACPI_REPORT_ERROR ((
+ "ex_allocate_name_string: Could not allocate size %d\n", size_needed));
return_PTR (NULL);
}
*
* FUNCTION: acpi_ex_name_segment
*
- * PARAMETERS: interpreter_mode - Current running mode (load1/Load2/Exec)
+ * PARAMETERS: in_aml_address - Pointer to the name in the AML code
+ * name_string - Where to return the name. The name is appended
+ * to any existing string to form a namepath
*
* RETURN: Status
*
- * DESCRIPTION: Execute a name segment (4 bytes)
+ * DESCRIPTION: Extract an ACPI name (4 bytes) from the AML byte stream
*
******************************************************************************/
-acpi_status
+static acpi_status
acpi_ex_name_segment (
u8 **in_aml_address,
char *name_string)
status = AE_CTRL_PENDING;
}
else {
- /* Segment started with one or more valid characters, but fewer than 4 */
-
+ /*
+ * Segment started with one or more valid characters, but fewer than
+ * the required 4
+ */
status = AE_AML_BAD_NAME;
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Bad character %02x in name, at %p\n",
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+ "Bad character %02x in name, at %p\n",
*aml_address, aml_address));
}
*
* FUNCTION: acpi_ex_get_name_string
*
- * PARAMETERS: data_type - Data type to be associated with this name
+ * PARAMETERS: data_type - Object type to be associated with this
+ * name
+ * in_aml_address - Pointer to the namestring in the AML code
+ * out_name_string - Where the namestring is returned
+ * out_name_length - Length of the returned string
*
- * RETURN: Status
+ * RETURN: Status, namestring and length
*
- * DESCRIPTION: Get a name, including any prefixes.
+ * DESCRIPTION: Extract a full namepath from the AML byte stream,
+ * including any prefixes.
*
******************************************************************************/
switch (*aml_address) {
case AML_ROOT_PREFIX:
- ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "root_prefix(\\) at %p\n", aml_address));
+ ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "root_prefix(\\) at %p\n",
+ aml_address));
/*
* Remember that we have a root_prefix --
/* Increment past possibly multiple parent prefixes */
do {
- ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "parent_prefix (^) at %p\n", aml_address));
+ ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "parent_prefix (^) at %p\n",
+ aml_address));
aml_address++;
prefix_count++;
break;
}
-
/* Examine first character of name for name segment prefix operator */
switch (*aml_address) {
case AML_DUAL_NAME_PREFIX:
- ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "dual_name_prefix at %p\n", aml_address));
+ ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "dual_name_prefix at %p\n",
+ aml_address));
aml_address++;
name_string = acpi_ex_allocate_name_string (prefix_count, 2);
case AML_MULTI_NAME_PREFIX_OP:
- ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "multi_name_prefix at %p\n", aml_address));
+ ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "multi_name_prefix at %p\n",
+ aml_address));
/* Fetch count of segments remaining in name path */
has_prefix = TRUE;
while (num_segments &&
- (status = acpi_ex_name_segment (&aml_address, name_string)) == AE_OK) {
+ (status = acpi_ex_name_segment (&aml_address, name_string)) ==
+ AE_OK) {
num_segments--;
}
/* null_name valid as of 8-12-98 ASL/AML Grammar Update */
if (prefix_count == ACPI_UINT32_MAX) {
- ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "name_seg is \"\\\" followed by NULL\n"));
+ ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
+ "name_seg is \"\\\" followed by NULL\n"));
}
/* Consume the NULL byte */
projects / linux-2.6 / blobdiff