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/executer/exnames.c b/drivers/acpi/executer/exnames.c
new file mode 100644
index 0000000..7911c53
--- /dev/null
+++ b/drivers/acpi/executer/exnames.c
@@ -0,0 +1,427 @@
+
+/******************************************************************************
+ *
+ * Module Name: exnames - interpreter/scanner name load/execute
+ *
+ *****************************************************************************/
+
+/*
+ * 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/acinterp.h>
+#include <acpi/amlcode.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ ACPI_MODULE_NAME ("exnames")
+
+
+/* AML Package Length encodings */
+
+#define ACPI_AML_PACKAGE_TYPE1 0x40
+#define ACPI_AML_PACKAGE_TYPE2 0x4000
+#define ACPI_AML_PACKAGE_TYPE3 0x400000
+#define ACPI_AML_PACKAGE_TYPE4 0x40000000
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_allocate_name_string
+ *
+ * PARAMETERS: prefix_count - Count of parent levels. Special cases:
+ * (-1) = root, 0 = none
+ * num_name_segs - count of 4-character name segments
+ *
+ * RETURN: A pointer to the allocated string segment. This segment must
+ * be deleted by the caller.
+ *
+ * DESCRIPTION: Allocate a buffer for a name string. Ensure allocated name
+ * string is long enough, and set up prefix if any.
+ *
+ ******************************************************************************/
+
+char *
+acpi_ex_allocate_name_string (
+ u32 prefix_count,
+ u32 num_name_segs)
+{
+ char *temp_ptr;
+ char *name_string;
+ u32 size_needed;
+
+ ACPI_FUNCTION_TRACE ("ex_allocate_name_string");
+
+
+ /*
+ * 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.
+ */
+ if (prefix_count == ACPI_UINT32_MAX) {
+ /* Special case for root */
+
+ size_needed = 1 + (ACPI_NAME_SIZE * num_name_segs) + 2 + 1;
+ }
+ else {
+ size_needed = prefix_count + (ACPI_NAME_SIZE * num_name_segs) + 2 + 1;
+ }
+
+ /*
+ * Allocate a buffer for the name.
+ * This buffer must be deleted by the caller!
+ */
+ 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));
+ return_PTR (NULL);
+ }
+
+ temp_ptr = name_string;
+
+ /* Set up Root or Parent prefixes if needed */
+
+ if (prefix_count == ACPI_UINT32_MAX) {
+ *temp_ptr++ = AML_ROOT_PREFIX;
+ }
+ else {
+ while (prefix_count--) {
+ *temp_ptr++ = AML_PARENT_PREFIX;
+ }
+ }
+
+
+ /* Set up Dual or Multi prefixes if needed */
+
+ if (num_name_segs > 2) {
+ /* Set up multi prefixes */
+
+ *temp_ptr++ = AML_MULTI_NAME_PREFIX_OP;
+ *temp_ptr++ = (char) num_name_segs;
+ }
+ else if (2 == num_name_segs) {
+ /* Set up dual prefixes */
+
+ *temp_ptr++ = AML_DUAL_NAME_PREFIX;
+ }
+
+ /*
+ * Terminate string following prefixes. acpi_ex_name_segment() will
+ * append the segment(s)
+ */
+ *temp_ptr = 0;
+
+ return_PTR (name_string);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_name_segment
+ *
+ * PARAMETERS: interpreter_mode - Current running mode (load1/Load2/Exec)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute a name segment (4 bytes)
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_name_segment (
+ u8 **in_aml_address,
+ char *name_string)
+{
+ char *aml_address = (void *) *in_aml_address;
+ acpi_status status = AE_OK;
+ u32 index;
+ char char_buf[5];
+
+
+ ACPI_FUNCTION_TRACE ("ex_name_segment");
+
+
+ /*
+ * If first character is a digit, then we know that we aren't looking at a
+ * valid name segment
+ */
+ char_buf[0] = *aml_address;
+
+ if ('0' <= char_buf[0] && char_buf[0] <= '9') {
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "leading digit: %c\n", char_buf[0]));
+ return_ACPI_STATUS (AE_CTRL_PENDING);
+ }
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "Bytes from stream:\n"));
+
+ for (index = 0;
+ (index < ACPI_NAME_SIZE) && (acpi_ut_valid_acpi_character (*aml_address));
+ index++) {
+ char_buf[index] = *aml_address++;
+ ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "%c\n", char_buf[index]));
+ }
+
+
+ /* Valid name segment */
+
+ if (index == 4) {
+ /* Found 4 valid characters */
+
+ char_buf[4] = '\0';
+
+ if (name_string) {
+ ACPI_STRCAT (name_string, char_buf);
+ ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+ "Appended to - %s \n", name_string));
+ }
+ else {
+ ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+ "No Name string - %s \n", char_buf));
+ }
+ }
+ else if (index == 0) {
+ /*
+ * First character was not a valid name character,
+ * so we are looking at something other than a name.
+ */
+ ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
+ "Leading character is not alpha: %02Xh (not a name)\n",
+ char_buf[0]));
+ status = AE_CTRL_PENDING;
+ }
+ else {
+ /* Segment started with one or more valid characters, but fewer than 4 */
+
+ status = AE_AML_BAD_NAME;
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Bad character %02x in name, at %p\n",
+ *aml_address, aml_address));
+ }
+
+ *in_aml_address = (u8 *) aml_address;
+ return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_get_name_string
+ *
+ * PARAMETERS: data_type - Data type to be associated with this name
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get a name, including any prefixes.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_get_name_string (
+ acpi_object_type data_type,
+ u8 *in_aml_address,
+ char **out_name_string,
+ u32 *out_name_length)
+{
+ acpi_status status = AE_OK;
+ u8 *aml_address = in_aml_address;
+ char *name_string = NULL;
+ u32 num_segments;
+ u32 prefix_count = 0;
+ u8 has_prefix = FALSE;
+
+
+ ACPI_FUNCTION_TRACE_PTR ("ex_get_name_string", aml_address);
+
+
+ if (ACPI_TYPE_LOCAL_REGION_FIELD == data_type ||
+ ACPI_TYPE_LOCAL_BANK_FIELD == data_type ||
+ ACPI_TYPE_LOCAL_INDEX_FIELD == data_type) {
+ /* Disallow prefixes for types associated with field_unit names */
+
+ name_string = acpi_ex_allocate_name_string (0, 1);
+ if (!name_string) {
+ status = AE_NO_MEMORY;
+ }
+ else {
+ status = acpi_ex_name_segment (&aml_address, name_string);
+ }
+ }
+ else {
+ /*
+ * data_type is not a field name.
+ * Examine first character of name for root or parent prefix operators
+ */
+ switch (*aml_address) {
+ case AML_ROOT_PREFIX:
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "root_prefix(\\) at %p\n", aml_address));
+
+ /*
+ * Remember that we have a root_prefix --
+ * see comment in acpi_ex_allocate_name_string()
+ */
+ aml_address++;
+ prefix_count = ACPI_UINT32_MAX;
+ has_prefix = TRUE;
+ break;
+
+
+ case AML_PARENT_PREFIX:
+
+ /* Increment past possibly multiple parent prefixes */
+
+ do {
+ ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "parent_prefix (^) at %p\n", aml_address));
+
+ aml_address++;
+ prefix_count++;
+
+ } while (*aml_address == AML_PARENT_PREFIX);
+
+ has_prefix = TRUE;
+ break;
+
+
+ default:
+
+ /* Not a prefix character */
+
+ 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));
+
+ aml_address++;
+ name_string = acpi_ex_allocate_name_string (prefix_count, 2);
+ if (!name_string) {
+ status = AE_NO_MEMORY;
+ break;
+ }
+
+ /* Indicate that we processed a prefix */
+
+ has_prefix = TRUE;
+
+ status = acpi_ex_name_segment (&aml_address, name_string);
+ if (ACPI_SUCCESS (status)) {
+ status = acpi_ex_name_segment (&aml_address, name_string);
+ }
+ break;
+
+
+ case AML_MULTI_NAME_PREFIX_OP:
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "multi_name_prefix at %p\n", aml_address));
+
+ /* Fetch count of segments remaining in name path */
+
+ aml_address++;
+ num_segments = *aml_address;
+
+ name_string = acpi_ex_allocate_name_string (prefix_count, num_segments);
+ if (!name_string) {
+ status = AE_NO_MEMORY;
+ break;
+ }
+
+ /* Indicate that we processed a prefix */
+
+ aml_address++;
+ has_prefix = TRUE;
+
+ while (num_segments &&
+ (status = acpi_ex_name_segment (&aml_address, name_string)) == AE_OK) {
+ num_segments--;
+ }
+
+ break;
+
+
+ case 0:
+
+ /* 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"));
+ }
+
+ /* Consume the NULL byte */
+
+ aml_address++;
+ name_string = acpi_ex_allocate_name_string (prefix_count, 0);
+ if (!name_string) {
+ status = AE_NO_MEMORY;
+ break;
+ }
+
+ break;
+
+
+ default:
+
+ /* Name segment string */
+
+ name_string = acpi_ex_allocate_name_string (prefix_count, 1);
+ if (!name_string) {
+ status = AE_NO_MEMORY;
+ break;
+ }
+
+ status = acpi_ex_name_segment (&aml_address, name_string);
+ break;
+ }
+ }
+
+ if (AE_CTRL_PENDING == status && has_prefix) {
+ /* Ran out of segments after processing a prefix */
+
+ ACPI_REPORT_ERROR (
+ ("ex_do_name: Malformed Name at %p\n", name_string));
+ status = AE_AML_BAD_NAME;
+ }
+
+ *out_name_string = name_string;
+ *out_name_length = (u32) (aml_address - in_aml_address);
+
+ return_ACPI_STATUS (status);
+}
+
+