1 /******************************************************************************
3 * Module Name: tbxface - Public interfaces to the ACPI subsystem
4 * ACPI table oriented interfaces
7 *****************************************************************************/
9 /******************************************************************************
13 * Some or all of this work - Copyright (c) 1999 - 2003, Intel Corp.
14 * All rights reserved.
18 * 2.1. This is your license from Intel Corp. under its intellectual property
19 * rights. You may have additional license terms from the party that provided
20 * you this software, covering your right to use that party's intellectual
23 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
24 * copy of the source code appearing in this file ("Covered Code") an
25 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
26 * base code distributed originally by Intel ("Original Intel Code") to copy,
27 * make derivatives, distribute, use and display any portion of the Covered
28 * Code in any form, with the right to sublicense such rights; and
30 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
31 * license (with the right to sublicense), under only those claims of Intel
32 * patents that are infringed by the Original Intel Code, to make, use, sell,
33 * offer to sell, and import the Covered Code and derivative works thereof
34 * solely to the minimum extent necessary to exercise the above copyright
35 * license, and in no event shall the patent license extend to any additions
36 * to or modifications of the Original Intel Code. No other license or right
37 * is granted directly or by implication, estoppel or otherwise;
39 * The above copyright and patent license is granted only if the following
44 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
45 * Redistribution of source code of any substantial portion of the Covered
46 * Code or modification with rights to further distribute source must include
47 * the above Copyright Notice, the above License, this list of Conditions,
48 * and the following Disclaimer and Export Compliance provision. In addition,
49 * Licensee must cause all Covered Code to which Licensee contributes to
50 * contain a file documenting the changes Licensee made to create that Covered
51 * Code and the date of any change. Licensee must include in that file the
52 * documentation of any changes made by any predecessor Licensee. Licensee
53 * must include a prominent statement that the modification is derived,
54 * directly or indirectly, from Original Intel Code.
56 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
57 * Redistribution of source code of any substantial portion of the Covered
58 * Code or modification without rights to further distribute source must
59 * include the following Disclaimer and Export Compliance provision in the
60 * documentation and/or other materials provided with distribution. In
61 * addition, Licensee may not authorize further sublicense of source of any
62 * portion of the Covered Code, and must include terms to the effect that the
63 * license from Licensee to its licensee is limited to the intellectual
64 * property embodied in the software Licensee provides to its licensee, and
65 * not to intellectual property embodied in modifications its licensee may
68 * 3.3. Redistribution of Executable. Redistribution in executable form of any
69 * substantial portion of the Covered Code or modification must reproduce the
70 * above Copyright Notice, and the following Disclaimer and Export Compliance
71 * provision in the documentation and/or other materials provided with the
74 * 3.4. Intel retains all right, title, and interest in and to the Original
77 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
78 * Intel shall be used in advertising or otherwise to promote the sale, use or
79 * other dealings in products derived from or relating to the Covered Code
80 * without prior written authorization from Intel.
82 * 4. Disclaimer and Export Compliance
84 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
85 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
86 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
87 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
88 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
89 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
92 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
93 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
94 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
95 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
96 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
97 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
98 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
101 * 4.3. Licensee shall not export, either directly or indirectly, any of this
102 * software or system incorporating such software without first obtaining any
103 * required license or other approval from the U. S. Department of Commerce or
104 * any other agency or department of the United States Government. In the
105 * event Licensee exports any such software from the United States or
106 * re-exports any such software from a foreign destination, Licensee shall
107 * ensure that the distribution and export/re-export of the software is in
108 * compliance with all laws, regulations, orders, or other restrictions of the
109 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
110 * any of its subsidiaries will export/re-export any technical data, process,
111 * software, or service, directly or indirectly, to any country for which the
112 * United States government or any agency thereof requires an export license,
113 * other governmental approval, or letter of assurance, without first obtaining
114 * such license, approval or letter.
116 *****************************************************************************/
117 /* $DragonFly: src/sys/contrib/dev/acpica/Attic/tbxface.c,v 1.1 2003/09/24 03:32:16 drhodus Exp $ */
119 #define __TBXFACE_C__
122 #include "acnamesp.h"
123 #include "actables.h"
126 #define _COMPONENT ACPI_TABLES
127 ACPI_MODULE_NAME ("tbxface")
130 /*******************************************************************************
132 * FUNCTION: AcpiLoadTables
138 * DESCRIPTION: This function is called to load the ACPI tables from the
141 ******************************************************************************/
144 AcpiLoadTables (void)
146 ACPI_POINTER RsdpAddress;
150 ACPI_FUNCTION_TRACE ("AcpiLoadTables");
155 Status = AcpiOsGetRootPointer (ACPI_LOGICAL_ADDRESSING,
157 if (ACPI_FAILURE (Status))
159 ACPI_REPORT_ERROR (("AcpiLoadTables: Could not get RSDP, %s\n",
160 AcpiFormatException (Status)));
164 /* Map and validate the RSDP */
166 AcpiGbl_TableFlags = RsdpAddress.PointerType;
168 Status = AcpiTbVerifyRsdp (&RsdpAddress);
169 if (ACPI_FAILURE (Status))
171 ACPI_REPORT_ERROR (("AcpiLoadTables: RSDP Failed validation: %s\n",
172 AcpiFormatException (Status)));
176 /* Get the RSDT via the RSDP */
178 Status = AcpiTbGetTableRsdt ();
179 if (ACPI_FAILURE (Status))
181 ACPI_REPORT_ERROR (("AcpiLoadTables: Could not load RSDT: %s\n",
182 AcpiFormatException (Status)));
186 /* Now get the tables needed by this subsystem (FADT, DSDT, etc.) */
188 Status = AcpiTbGetRequiredTables ();
189 if (ACPI_FAILURE (Status))
191 ACPI_REPORT_ERROR (("AcpiLoadTables: Error getting required tables (DSDT/FADT/FACS): %s\n",
192 AcpiFormatException (Status)));
196 ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "ACPI Tables successfully acquired\n"));
199 /* Load the namespace from the tables */
201 Status = AcpiNsLoadNamespace ();
202 if (ACPI_FAILURE (Status))
204 ACPI_REPORT_ERROR (("AcpiLoadTables: Could not load namespace: %s\n",
205 AcpiFormatException (Status)));
209 return_ACPI_STATUS (AE_OK);
213 ACPI_REPORT_ERROR (("AcpiLoadTables: Could not load tables: %s\n",
214 AcpiFormatException (Status)));
216 return_ACPI_STATUS (Status);
220 /*******************************************************************************
222 * FUNCTION: AcpiLoadTable
224 * PARAMETERS: TablePtr - pointer to a buffer containing the entire
229 * DESCRIPTION: This function is called to load a table from the caller's
230 * buffer. The buffer must contain an entire ACPI Table including
231 * a valid header. The header fields will be verified, and if it
232 * is determined that the table is invalid, the call will fail.
234 ******************************************************************************/
238 ACPI_TABLE_HEADER *TablePtr)
241 ACPI_TABLE_DESC TableInfo;
242 ACPI_POINTER Address;
245 ACPI_FUNCTION_TRACE ("AcpiLoadTable");
250 return_ACPI_STATUS (AE_BAD_PARAMETER);
253 /* Copy the table to a local buffer */
255 Address.PointerType = ACPI_LOGICAL_POINTER | ACPI_LOGICAL_ADDRESSING;
256 Address.Pointer.Logical = TablePtr;
258 Status = AcpiTbGetTableBody (&Address, TablePtr, &TableInfo);
259 if (ACPI_FAILURE (Status))
261 return_ACPI_STATUS (Status);
264 /* Install the new table into the local data structures */
266 Status = AcpiTbInstallTable (&TableInfo);
267 if (ACPI_FAILURE (Status))
269 /* Free table allocated by AcpiTbGetTableBody */
271 AcpiTbDeleteSingleTable (&TableInfo);
272 return_ACPI_STATUS (Status);
275 /* Convert the table to common format if necessary */
277 switch (TableInfo.Type)
279 case ACPI_TABLE_FADT:
281 Status = AcpiTbConvertTableFadt ();
284 case ACPI_TABLE_FACS:
286 Status = AcpiTbBuildCommonFacs (&TableInfo);
290 /* Load table into namespace if it contains executable AML */
292 Status = AcpiNsLoadTable (TableInfo.InstalledDesc, AcpiGbl_RootNode);
296 if (ACPI_FAILURE (Status))
298 /* Uninstall table and free the buffer */
300 (void) AcpiTbUninstallTable (TableInfo.InstalledDesc);
303 return_ACPI_STATUS (Status);
307 /*******************************************************************************
309 * FUNCTION: AcpiUnloadTable
311 * PARAMETERS: TableType - Type of table to be unloaded
315 * DESCRIPTION: This routine is used to force the unload of a table
317 ******************************************************************************/
321 ACPI_TABLE_TYPE TableType)
323 ACPI_TABLE_DESC *ListHead;
326 ACPI_FUNCTION_TRACE ("AcpiUnloadTable");
329 /* Parameter validation */
331 if (TableType > ACPI_TABLE_MAX)
333 return_ACPI_STATUS (AE_BAD_PARAMETER);
337 /* Find all tables of the requested type */
339 ListHead = &AcpiGbl_AcpiTables[TableType];
343 * Delete all namespace entries owned by this table. Note that these
344 * entries can appear anywhere in the namespace by virtue of the AML
345 * "Scope" operator. Thus, we need to track ownership by an ID, not
346 * simply a position within the hierarchy
348 AcpiNsDeleteNamespaceByOwner (ListHead->TableId);
350 /* Delete (or unmap) the actual table */
352 AcpiTbDeleteAcpiTable (TableType);
354 } while (ListHead != &AcpiGbl_AcpiTables[TableType]);
356 return_ACPI_STATUS (AE_OK);
360 /*******************************************************************************
362 * FUNCTION: AcpiGetTableHeader
364 * PARAMETERS: TableType - one of the defined table types
365 * Instance - the non zero instance of the table, allows
366 * support for multiple tables of the same type
367 * see AcpiGbl_AcpiTableFlag
368 * OutTableHeader - pointer to the ACPI_TABLE_HEADER if successful
370 * DESCRIPTION: This function is called to get an ACPI table header. The caller
371 * supplies an pointer to a data area sufficient to contain an ACPI
372 * ACPI_TABLE_HEADER structure.
374 * The header contains a length field that can be used to determine
375 * the size of the buffer needed to contain the entire table. This
376 * function is not valid for the RSD PTR table since it does not
377 * have a standard header and is fixed length.
379 ******************************************************************************/
383 ACPI_TABLE_TYPE TableType,
385 ACPI_TABLE_HEADER *OutTableHeader)
387 ACPI_TABLE_HEADER *TblPtr;
391 ACPI_FUNCTION_TRACE ("AcpiGetTableHeader");
394 if ((Instance == 0) ||
395 (TableType == ACPI_TABLE_RSDP) ||
398 return_ACPI_STATUS (AE_BAD_PARAMETER);
401 /* Check the table type and instance */
403 if ((TableType > ACPI_TABLE_MAX) ||
404 (ACPI_IS_SINGLE_TABLE (AcpiGbl_AcpiTableData[TableType].Flags) &&
407 return_ACPI_STATUS (AE_BAD_PARAMETER);
411 /* Get a pointer to the entire table */
413 Status = AcpiTbGetTablePtr (TableType, Instance, &TblPtr);
414 if (ACPI_FAILURE (Status))
416 return_ACPI_STATUS (Status);
420 * The function will return a NULL pointer if the table is not loaded
424 return_ACPI_STATUS (AE_NOT_EXIST);
428 * Copy the header to the caller's buffer
430 ACPI_MEMCPY ((void *) OutTableHeader, (void *) TblPtr,
431 sizeof (ACPI_TABLE_HEADER));
433 return_ACPI_STATUS (Status);
437 /*******************************************************************************
439 * FUNCTION: AcpiGetTable
441 * PARAMETERS: TableType - one of the defined table types
442 * Instance - the non zero instance of the table, allows
443 * support for multiple tables of the same type
444 * see AcpiGbl_AcpiTableFlag
445 * RetBuffer - pointer to a structure containing a buffer to
450 * DESCRIPTION: This function is called to get an ACPI table. The caller
451 * supplies an OutBuffer large enough to contain the entire ACPI
452 * table. The caller should call the AcpiGetTableHeader function
453 * first to determine the buffer size needed. Upon completion
454 * the OutBuffer->Length field will indicate the number of bytes
455 * copied into the OutBuffer->BufPtr buffer. This table will be
456 * a complete table including the header.
458 ******************************************************************************/
462 ACPI_TABLE_TYPE TableType,
464 ACPI_BUFFER *RetBuffer)
466 ACPI_TABLE_HEADER *TblPtr;
468 ACPI_SIZE TableLength;
471 ACPI_FUNCTION_TRACE ("AcpiGetTable");
474 /* Parameter validation */
478 return_ACPI_STATUS (AE_BAD_PARAMETER);
481 Status = AcpiUtValidateBuffer (RetBuffer);
482 if (ACPI_FAILURE (Status))
484 return_ACPI_STATUS (Status);
487 /* Check the table type and instance */
489 if ((TableType > ACPI_TABLE_MAX) ||
490 (ACPI_IS_SINGLE_TABLE (AcpiGbl_AcpiTableData[TableType].Flags) &&
493 return_ACPI_STATUS (AE_BAD_PARAMETER);
497 /* Get a pointer to the entire table */
499 Status = AcpiTbGetTablePtr (TableType, Instance, &TblPtr);
500 if (ACPI_FAILURE (Status))
502 return_ACPI_STATUS (Status);
506 * AcpiTbGetTablePtr will return a NULL pointer if the
507 * table is not loaded.
511 return_ACPI_STATUS (AE_NOT_EXIST);
514 /* Get the table length */
516 if (TableType == ACPI_TABLE_RSDP)
519 * RSD PTR is the only "table" without a header
521 TableLength = sizeof (RSDP_DESCRIPTOR);
525 TableLength = (ACPI_SIZE) TblPtr->Length;
528 /* Validate/Allocate/Clear caller buffer */
530 Status = AcpiUtInitializeBuffer (RetBuffer, TableLength);
531 if (ACPI_FAILURE (Status))
533 return_ACPI_STATUS (Status);
536 /* Copy the table to the buffer */
538 ACPI_MEMCPY ((void *) RetBuffer->Pointer, (void *) TblPtr, TableLength);
539 return_ACPI_STATUS (AE_OK);