Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/acpi/utilities/uteval.c b/drivers/acpi/utilities/uteval.c
new file mode 100644
index 0000000..ead27d2
--- /dev/null
+++ b/drivers/acpi/utilities/uteval.c
@@ -0,0 +1,696 @@
+/******************************************************************************
+ *
+ * Module Name: uteval - Object evaluation
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+
+#include <acpi/acpi.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acinterp.h>
+
+
+#define _COMPONENT ACPI_UTILITIES
+ ACPI_MODULE_NAME ("uteval")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_osi_implementation
+ *
+ * PARAMETERS: walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Implementation of _OSI predefined control method
+ * Supported = _OSI (String)
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_osi_implementation (
+ struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object *string_desc;
+ union acpi_operand_object *return_desc;
+ acpi_native_uint i;
+
+
+ ACPI_FUNCTION_TRACE ("ut_osi_implementation");
+
+
+ /* Validate the string input argument */
+
+ string_desc = walk_state->arguments[0].object;
+ if (!string_desc || (string_desc->common.type != ACPI_TYPE_STRING)) {
+ return_ACPI_STATUS (AE_TYPE);
+ }
+
+ /* Create a return object (Default value = 0) */
+
+ return_desc = acpi_ut_create_internal_object (ACPI_TYPE_INTEGER);
+ if (!return_desc) {
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+
+ /* Compare input string to table of supported strings */
+
+ for (i = 0; i < ACPI_NUM_OSI_STRINGS; i++) {
+ if (!ACPI_STRCMP (string_desc->string.pointer,
+ (char *) acpi_gbl_valid_osi_strings[i])) {
+ /* This string is supported */
+
+ return_desc->integer.value = 0xFFFFFFFF;
+ break;
+ }
+ }
+
+ walk_state->return_desc = return_desc;
+ return_ACPI_STATUS (AE_CTRL_TERMINATE);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_evaluate_object
+ *
+ * PARAMETERS: prefix_node - Starting node
+ * Path - Path to object from starting node
+ * expected_return_types - Bitmap of allowed return types
+ * return_desc - Where a return value is stored
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Evaluates a namespace object and verifies the type of the
+ * return object. Common code that simplifies accessing objects
+ * that have required return objects of fixed types.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_evaluate_object (
+ struct acpi_namespace_node *prefix_node,
+ char *path,
+ u32 expected_return_btypes,
+ union acpi_operand_object **return_desc)
+{
+ struct acpi_parameter_info info;
+ acpi_status status;
+ u32 return_btype;
+
+
+ ACPI_FUNCTION_TRACE ("ut_evaluate_object");
+
+
+ info.node = prefix_node;
+ info.parameters = NULL;
+ info.parameter_type = ACPI_PARAM_ARGS;
+
+ /* Evaluate the object/method */
+
+ status = acpi_ns_evaluate_relative (path, &info);
+ if (ACPI_FAILURE (status)) {
+ if (status == AE_NOT_FOUND) {
+ ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s.%s] was not found\n",
+ acpi_ut_get_node_name (prefix_node), path));
+ }
+ else {
+ ACPI_REPORT_METHOD_ERROR ("Method execution failed",
+ prefix_node, path, status);
+ }
+
+ return_ACPI_STATUS (status);
+ }
+
+ /* Did we get a return object? */
+
+ if (!info.return_object) {
+ if (expected_return_btypes) {
+ ACPI_REPORT_METHOD_ERROR ("No object was returned from",
+ prefix_node, path, AE_NOT_EXIST);
+
+ return_ACPI_STATUS (AE_NOT_EXIST);
+ }
+
+ return_ACPI_STATUS (AE_OK);
+ }
+
+ /* Map the return object type to the bitmapped type */
+
+ switch (ACPI_GET_OBJECT_TYPE (info.return_object)) {
+ case ACPI_TYPE_INTEGER:
+ return_btype = ACPI_BTYPE_INTEGER;
+ break;
+
+ case ACPI_TYPE_BUFFER:
+ return_btype = ACPI_BTYPE_BUFFER;
+ break;
+
+ case ACPI_TYPE_STRING:
+ return_btype = ACPI_BTYPE_STRING;
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+ return_btype = ACPI_BTYPE_PACKAGE;
+ break;
+
+ default:
+ return_btype = 0;
+ break;
+ }
+
+ if ((acpi_gbl_enable_interpreter_slack) &&
+ (!expected_return_btypes)) {
+ /*
+ * We received a return object, but one was not expected. This can
+ * happen frequently if the "implicit return" feature is enabled.
+ * Just delete the return object and return AE_OK.
+ */
+ acpi_ut_remove_reference (info.return_object);
+ return_ACPI_STATUS (AE_OK);
+ }
+
+ /* Is the return object one of the expected types? */
+
+ if (!(expected_return_btypes & return_btype)) {
+ ACPI_REPORT_METHOD_ERROR ("Return object type is incorrect",
+ prefix_node, path, AE_TYPE);
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+ "Type returned from %s was incorrect: %s, expected Btypes: %X\n",
+ path, acpi_ut_get_object_type_name (info.return_object),
+ expected_return_btypes));
+
+ /* On error exit, we must delete the return object */
+
+ acpi_ut_remove_reference (info.return_object);
+ return_ACPI_STATUS (AE_TYPE);
+ }
+
+ /* Object type is OK, return it */
+
+ *return_desc = info.return_object;
+ return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_evaluate_numeric_object
+ *
+ * PARAMETERS: *object_name - Object name to be evaluated
+ * device_node - Node for the device
+ * *Address - Where the value is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Evaluates a numeric namespace object for a selected device
+ * and stores result in *Address.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_evaluate_numeric_object (
+ char *object_name,
+ struct acpi_namespace_node *device_node,
+ acpi_integer *address)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+
+ ACPI_FUNCTION_TRACE ("ut_evaluate_numeric_object");
+
+
+ status = acpi_ut_evaluate_object (device_node, object_name,
+ ACPI_BTYPE_INTEGER, &obj_desc);
+ if (ACPI_FAILURE (status)) {
+ return_ACPI_STATUS (status);
+ }
+
+ /* Get the returned Integer */
+
+ *address = obj_desc->integer.value;
+
+ /* On exit, we must delete the return object */
+
+ acpi_ut_remove_reference (obj_desc);
+ return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_id_string
+ *
+ * PARAMETERS: Destination - Where to copy the string
+ * Source - Source string
+ * max_length - Length of the destination buffer
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods.
+ * Performs removal of a leading asterisk if present -- workaround
+ * for a known issue on a bunch of machines.
+ *
+ ******************************************************************************/
+
+static void
+acpi_ut_copy_id_string (
+ char *destination,
+ char *source,
+ acpi_size max_length)
+{
+
+
+ /*
+ * Workaround for ID strings that have a leading asterisk. This construct
+ * is not allowed by the ACPI specification (ID strings must be
+ * alphanumeric), but enough existing machines have this embedded in their
+ * ID strings that the following code is useful.
+ */
+ if (*source == '*') {
+ source++;
+ }
+
+ /* Do the actual copy */
+
+ ACPI_STRNCPY (destination, source, max_length);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_execute_HID
+ *
+ * PARAMETERS: device_node - Node for the device
+ * *Hid - Where the HID is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Executes the _HID control method that returns the hardware
+ * ID of the device.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_execute_HID (
+ struct acpi_namespace_node *device_node,
+ struct acpi_device_id *hid)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+
+ ACPI_FUNCTION_TRACE ("ut_execute_HID");
+
+
+ status = acpi_ut_evaluate_object (device_node, METHOD_NAME__HID,
+ ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING, &obj_desc);
+ if (ACPI_FAILURE (status)) {
+ return_ACPI_STATUS (status);
+ }
+
+ if (ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_INTEGER) {
+ /* Convert the Numeric HID to string */
+
+ acpi_ex_eisa_id_to_string ((u32) obj_desc->integer.value, hid->value);
+ }
+ else {
+ /* Copy the String HID from the returned object */
+
+ acpi_ut_copy_id_string (hid->value, obj_desc->string.pointer,
+ sizeof (hid->value));
+ }
+
+ /* On exit, we must delete the return object */
+
+ acpi_ut_remove_reference (obj_desc);
+ return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_translate_one_cid
+ *
+ * PARAMETERS: obj_desc - _CID object, must be integer or string
+ * one_cid - Where the CID string is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Return a numeric or string _CID value as a string.
+ * (Compatible ID)
+ *
+ * NOTE: Assumes a maximum _CID string length of
+ * ACPI_MAX_CID_LENGTH.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_translate_one_cid (
+ union acpi_operand_object *obj_desc,
+ struct acpi_compatible_id *one_cid)
+{
+
+
+ switch (ACPI_GET_OBJECT_TYPE (obj_desc)) {
+ case ACPI_TYPE_INTEGER:
+
+ /* Convert the Numeric CID to string */
+
+ acpi_ex_eisa_id_to_string ((u32) obj_desc->integer.value, one_cid->value);
+ return (AE_OK);
+
+ case ACPI_TYPE_STRING:
+
+ if (obj_desc->string.length > ACPI_MAX_CID_LENGTH) {
+ return (AE_AML_STRING_LIMIT);
+ }
+
+ /* Copy the String CID from the returned object */
+
+ acpi_ut_copy_id_string (one_cid->value, obj_desc->string.pointer,
+ ACPI_MAX_CID_LENGTH);
+ return (AE_OK);
+
+ default:
+
+ return (AE_TYPE);
+ }
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_execute_CID
+ *
+ * PARAMETERS: device_node - Node for the device
+ * *Cid - Where the CID is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Executes the _CID control method that returns one or more
+ * compatible hardware IDs for the device.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_execute_CID (
+ struct acpi_namespace_node *device_node,
+ struct acpi_compatible_id_list **return_cid_list)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+ u32 count;
+ u32 size;
+ struct acpi_compatible_id_list *cid_list;
+ acpi_native_uint i;
+
+
+ ACPI_FUNCTION_TRACE ("ut_execute_CID");
+
+
+ /* Evaluate the _CID method for this device */
+
+ status = acpi_ut_evaluate_object (device_node, METHOD_NAME__CID,
+ ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING | ACPI_BTYPE_PACKAGE,
+ &obj_desc);
+ if (ACPI_FAILURE (status)) {
+ return_ACPI_STATUS (status);
+ }
+
+ /* Get the number of _CIDs returned */
+
+ count = 1;
+ if (ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_PACKAGE) {
+ count = obj_desc->package.count;
+ }
+
+ /* Allocate a worst-case buffer for the _CIDs */
+
+ size = (((count - 1) * sizeof (struct acpi_compatible_id)) +
+ sizeof (struct acpi_compatible_id_list));
+
+ cid_list = ACPI_MEM_CALLOCATE ((acpi_size) size);
+ if (!cid_list) {
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+
+ /* Init CID list */
+
+ cid_list->count = count;
+ cid_list->size = size;
+
+ /*
+ * A _CID can return either a single compatible ID or a package of compatible
+ * IDs. Each compatible ID can be one of the following:
+ * -- Number (32 bit compressed EISA ID) or
+ * -- String (PCI ID format, e.g. "PCI\VEN_vvvv&DEV_dddd&SUBSYS_ssssssss").
+ */
+
+ /* The _CID object can be either a single CID or a package (list) of CIDs */
+
+ if (ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_PACKAGE) {
+ /* Translate each package element */
+
+ for (i = 0; i < count; i++) {
+ status = acpi_ut_translate_one_cid (obj_desc->package.elements[i],
+ &cid_list->id[i]);
+ if (ACPI_FAILURE (status)) {
+ break;
+ }
+ }
+ }
+ else {
+ /* Only one CID, translate to a string */
+
+ status = acpi_ut_translate_one_cid (obj_desc, cid_list->id);
+ }
+
+ /* Cleanup on error */
+
+ if (ACPI_FAILURE (status)) {
+ ACPI_MEM_FREE (cid_list);
+ }
+ else {
+ *return_cid_list = cid_list;
+ }
+
+ /* On exit, we must delete the _CID return object */
+
+ acpi_ut_remove_reference (obj_desc);
+ return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_execute_UID
+ *
+ * PARAMETERS: device_node - Node for the device
+ * *Uid - Where the UID is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Executes the _UID control method that returns the hardware
+ * ID of the device.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_execute_UID (
+ struct acpi_namespace_node *device_node,
+ struct acpi_device_id *uid)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+
+ ACPI_FUNCTION_TRACE ("ut_execute_UID");
+
+
+ status = acpi_ut_evaluate_object (device_node, METHOD_NAME__UID,
+ ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING, &obj_desc);
+ if (ACPI_FAILURE (status)) {
+ return_ACPI_STATUS (status);
+ }
+
+ if (ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_INTEGER) {
+ /* Convert the Numeric UID to string */
+
+ acpi_ex_unsigned_integer_to_string (obj_desc->integer.value, uid->value);
+ }
+ else {
+ /* Copy the String UID from the returned object */
+
+ acpi_ut_copy_id_string (uid->value, obj_desc->string.pointer,
+ sizeof (uid->value));
+ }
+
+ /* On exit, we must delete the return object */
+
+ acpi_ut_remove_reference (obj_desc);
+ return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_execute_STA
+ *
+ * PARAMETERS: device_node - Node for the device
+ * *Flags - Where the status flags are returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Executes _STA for selected device and stores results in
+ * *Flags.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_execute_STA (
+ struct acpi_namespace_node *device_node,
+ u32 *flags)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+
+ ACPI_FUNCTION_TRACE ("ut_execute_STA");
+
+
+ status = acpi_ut_evaluate_object (device_node, METHOD_NAME__STA,
+ ACPI_BTYPE_INTEGER, &obj_desc);
+ if (ACPI_FAILURE (status)) {
+ if (AE_NOT_FOUND == status) {
+ ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
+ "_STA on %4.4s was not found, assuming device is present\n",
+ acpi_ut_get_node_name (device_node)));
+
+ *flags = 0x0F;
+ status = AE_OK;
+ }
+
+ return_ACPI_STATUS (status);
+ }
+
+ /* Extract the status flags */
+
+ *flags = (u32) obj_desc->integer.value;
+
+ /* On exit, we must delete the return object */
+
+ acpi_ut_remove_reference (obj_desc);
+ return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_execute_Sxds
+ *
+ * PARAMETERS: device_node - Node for the device
+ * *Flags - Where the status flags are returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Executes _STA for selected device and stores results in
+ * *Flags.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_execute_sxds (
+ struct acpi_namespace_node *device_node,
+ u8 *highest)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+ u32 i;
+
+
+ ACPI_FUNCTION_TRACE ("ut_execute_Sxds");
+
+
+ for (i = 0; i < 4; i++) {
+ highest[i] = 0xFF;
+ status = acpi_ut_evaluate_object (device_node,
+ (char *) acpi_gbl_highest_dstate_names[i],
+ ACPI_BTYPE_INTEGER, &obj_desc);
+ if (ACPI_FAILURE (status)) {
+ if (status != AE_NOT_FOUND) {
+ ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
+ "%s on Device %4.4s, %s\n",
+ (char *) acpi_gbl_highest_dstate_names[i],
+ acpi_ut_get_node_name (device_node),
+ acpi_format_exception (status)));
+
+ return_ACPI_STATUS (status);
+ }
+ }
+ else {
+ /* Extract the Dstate value */
+
+ highest[i] = (u8) obj_desc->integer.value;
+
+ /* Delete the return object */
+
+ acpi_ut_remove_reference (obj_desc);
+ }
+ }
+
+ return_ACPI_STATUS (AE_OK);
+}