rsxface.c revision 91116
119304Speter/******************************************************************************* 219304Speter * 319304Speter * Module Name: rsxface - Public interfaces to the resource manager 419304Speter * $Revision: 18 $ 519304Speter * 619304Speter ******************************************************************************/ 719304Speter 819304Speter/****************************************************************************** 919304Speter * 1019304Speter * 1. Copyright Notice 1119304Speter * 1219304Speter * Some or all of this work - Copyright (c) 1999 - 2002, Intel Corp. 1319304Speter * All rights reserved. 1419304Speter * 1519304Speter * 2. License 1619304Speter * 1719304Speter * 2.1. This is your license from Intel Corp. under its intellectual property 1819304Speter * rights. You may have additional license terms from the party that provided 1919304Speter * you this software, covering your right to use that party's intellectual 2019304Speter * property rights. 2119304Speter * 2219304Speter * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 2319304Speter * copy of the source code appearing in this file ("Covered Code") an 2419304Speter * irrevocable, perpetual, worldwide license under Intel's copyrights in the 2519304Speter * base code distributed originally by Intel ("Original Intel Code") to copy, 2619304Speter * make derivatives, distribute, use and display any portion of the Covered 2719304Speter * Code in any form, with the right to sublicense such rights; and 2819304Speter * 2919304Speter * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 3019304Speter * license (with the right to sublicense), under only those claims of Intel 3119304Speter * patents that are infringed by the Original Intel Code, to make, use, sell, 3219304Speter * offer to sell, and import the Covered Code and derivative works thereof 3319304Speter * solely to the minimum extent necessary to exercise the above copyright 3419304Speter * license, and in no event shall the patent license extend to any additions 3519304Speter * to or modifications of the Original Intel Code. No other license or right 3619304Speter * is granted directly or by implication, estoppel or otherwise; 3719304Speter * 3819304Speter * The above copyright and patent license is granted only if the following 3919304Speter * conditions are met: 4019304Speter * 4119304Speter * 3. Conditions 4219304Speter * 4319304Speter * 3.1. Redistribution of Source with Rights to Further Distribute Source. 4419304Speter * Redistribution of source code of any substantial portion of the Covered 4519304Speter * Code or modification with rights to further distribute source must include 4619304Speter * the above Copyright Notice, the above License, this list of Conditions, 4719304Speter * and the following Disclaimer and Export Compliance provision. In addition, 4819304Speter * Licensee must cause all Covered Code to which Licensee contributes to 4919304Speter * contain a file documenting the changes Licensee made to create that Covered 5019304Speter * Code and the date of any change. Licensee must include in that file the 5119304Speter * documentation of any changes made by any predecessor Licensee. Licensee 5219304Speter * must include a prominent statement that the modification is derived, 5319304Speter * directly or indirectly, from Original Intel Code. 5419304Speter * 5519304Speter * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 5619304Speter * Redistribution of source code of any substantial portion of the Covered 5719304Speter * Code or modification without rights to further distribute source must 5819304Speter * include the following Disclaimer and Export Compliance provision in the 5919304Speter * documentation and/or other materials provided with distribution. In 6019304Speter * addition, Licensee may not authorize further sublicense of source of any 6119304Speter * portion of the Covered Code, and must include terms to the effect that the 6219304Speter * license from Licensee to its licensee is limited to the intellectual 6319304Speter * property embodied in the software Licensee provides to its licensee, and 6419304Speter * not to intellectual property embodied in modifications its licensee may 6519304Speter * make. 6619304Speter * 6719304Speter * 3.3. Redistribution of Executable. Redistribution in executable form of any 6819304Speter * substantial portion of the Covered Code or modification must reproduce the 6919304Speter * above Copyright Notice, and the following Disclaimer and Export Compliance 7019304Speter * provision in the documentation and/or other materials provided with the 7119304Speter * distribution. 7219304Speter * 7319304Speter * 3.4. Intel retains all right, title, and interest in and to the Original 7419304Speter * Intel Code. 7519304Speter * 7619304Speter * 3.5. Neither the name Intel nor any other trademark owned or controlled by 7719304Speter * Intel shall be used in advertising or otherwise to promote the sale, use or 7819304Speter * other dealings in products derived from or relating to the Covered Code 7919304Speter * without prior written authorization from Intel. 8019304Speter * 8119304Speter * 4. Disclaimer and Export Compliance 8219304Speter * 8319304Speter * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 8419304Speter * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 8519304Speter * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 8619304Speter * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 8719304Speter * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 8819304Speter * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 8919304Speter * PARTICULAR PURPOSE. 9019304Speter * 9119304Speter * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 9219304Speter * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 9319304Speter * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 9419304Speter * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 9519304Speter * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 9619304Speter * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 9719304Speter * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 9819304Speter * LIMITED REMEDY. 9919304Speter * 10019304Speter * 4.3. Licensee shall not export, either directly or indirectly, any of this 10119304Speter * software or system incorporating such software without first obtaining any 10219304Speter * required license or other approval from the U. S. Department of Commerce or 10319304Speter * any other agency or department of the United States Government. In the 10419304Speter * event Licensee exports any such software from the United States or 10519304Speter * re-exports any such software from a foreign destination, Licensee shall 10619304Speter * ensure that the distribution and export/re-export of the software is in 10719304Speter * compliance with all laws, regulations, orders, or other restrictions of the 10819304Speter * U.S. Export Administration Regulations. Licensee agrees that neither it nor 10919304Speter * any of its subsidiaries will export/re-export any technical data, process, 11019304Speter * software, or service, directly or indirectly, to any country for which the 11119304Speter * United States government or any agency thereof requires an export license, 11219304Speter * other governmental approval, or letter of assurance, without first obtaining 11319304Speter * such license, approval or letter. 11419304Speter * 11519304Speter *****************************************************************************/ 11619304Speter 11719304Speter 11819304Speter#define __RSXFACE_C__ 11919304Speter 12019304Speter#include "acpi.h" 12119304Speter#include "acinterp.h" 12219304Speter#include "acnamesp.h" 12319304Speter#include "acresrc.h" 12419304Speter 12519304Speter#define _COMPONENT ACPI_RESOURCES 12619304Speter ACPI_MODULE_NAME ("rsxface") 12719304Speter 12819304Speter 12919304Speter/******************************************************************************* 13019304Speter * 13119304Speter * FUNCTION: AcpiGetIrqRoutingTable 13219304Speter * 13319304Speter * PARAMETERS: DeviceHandle - a handle to the Bus device we are querying 13419304Speter * RetBuffer - a pointer to a buffer to receive the 13519304Speter * current resources for the device 13619304Speter * 13719304Speter * RETURN: Status 13819304Speter * 13919304Speter * DESCRIPTION: This function is called to get the IRQ routing table for a 14019304Speter * specific bus. The caller must first acquire a handle for the 14119304Speter * desired bus. The routine table is placed in the buffer pointed 14219304Speter * to by the RetBuffer variable parameter. 14319304Speter * 14419304Speter * If the function fails an appropriate status will be returned 14519304Speter * and the value of RetBuffer is undefined. 14619304Speter * 14719304Speter * This function attempts to execute the _PRT method contained in 14819304Speter * the object indicated by the passed DeviceHandle. 14919304Speter * 15019304Speter ******************************************************************************/ 15119304Speter 15219304SpeterACPI_STATUS 15319304SpeterAcpiGetIrqRoutingTable ( 15419304Speter ACPI_HANDLE DeviceHandle, 15519304Speter ACPI_BUFFER *RetBuffer) 15619304Speter{ 15719304Speter ACPI_STATUS Status; 15819304Speter 15919304Speter 16019304Speter ACPI_FUNCTION_TRACE ("AcpiGetIrqRoutingTable "); 16119304Speter 16219304Speter 16319304Speter /* 16419304Speter * Must have a valid handle and buffer, So we have to have a handle 16519304Speter * and a return buffer structure, and if there is a non-zero buffer length 16619304Speter * we also need a valid pointer in the buffer. If it's a zero buffer length, 16719304Speter * we'll be returning the needed buffer size, so keep going. 16819304Speter */ 16919304Speter if (!DeviceHandle) 17019304Speter { 17119304Speter return_ACPI_STATUS (AE_BAD_PARAMETER); 17219304Speter } 17319304Speter 17419304Speter Status = AcpiUtValidateBuffer (RetBuffer); 17519304Speter if (ACPI_FAILURE (Status)) 17619304Speter { 17719304Speter return_ACPI_STATUS (Status); 17819304Speter } 17919304Speter 18019304Speter Status = AcpiRsGetPrtMethodData (DeviceHandle, RetBuffer); 18119304Speter return_ACPI_STATUS (Status); 18219304Speter} 18319304Speter 18419304Speter 18519304Speter/******************************************************************************* 18619304Speter * 18719304Speter * FUNCTION: AcpiGetCurrentResources 18819304Speter * 18919304Speter * PARAMETERS: DeviceHandle - a handle to the device object for the 19019304Speter * device we are querying 19119304Speter * RetBuffer - a pointer to a buffer to receive the 19219304Speter * current resources for the device 19319304Speter * 19419304Speter * RETURN: Status 19519304Speter * 19619304Speter * DESCRIPTION: This function is called to get the current resources for a 19719304Speter * specific device. The caller must first acquire a handle for 19819304Speter * the desired device. The resource data is placed in the buffer 19919304Speter * pointed to by the RetBuffer variable parameter. 20019304Speter * 20119304Speter * If the function fails an appropriate status will be returned 20219304Speter * and the value of RetBuffer is undefined. 20319304Speter * 20419304Speter * This function attempts to execute the _CRS method contained in 20519304Speter * the object indicated by the passed DeviceHandle. 20619304Speter * 20719304Speter ******************************************************************************/ 20819304Speter 20919304SpeterACPI_STATUS 21019304SpeterAcpiGetCurrentResources ( 21119304Speter ACPI_HANDLE DeviceHandle, 21219304Speter ACPI_BUFFER *RetBuffer) 21319304Speter{ 21419304Speter ACPI_STATUS Status; 21519304Speter 21619304Speter 21719304Speter ACPI_FUNCTION_TRACE ("AcpiGetCurrentResources"); 21819304Speter 21919304Speter 22019304Speter /* 22119304Speter * Must have a valid handle and buffer, So we have to have a handle 22219304Speter * and a return buffer structure, and if there is a non-zero buffer length 22319304Speter * we also need a valid pointer in the buffer. If it's a zero buffer length, 22419304Speter * we'll be returning the needed buffer size, so keep going. 22519304Speter */ 22619304Speter if (!DeviceHandle) 22719304Speter { 22819304Speter return_ACPI_STATUS (AE_BAD_PARAMETER); 22919304Speter } 23019304Speter 23119304Speter Status = AcpiUtValidateBuffer (RetBuffer); 23219304Speter if (ACPI_FAILURE (Status)) 23319304Speter { 234 return_ACPI_STATUS (Status); 235 } 236 237 Status = AcpiRsGetCrsMethodData (DeviceHandle, RetBuffer); 238 return_ACPI_STATUS (Status); 239} 240 241 242/******************************************************************************* 243 * 244 * FUNCTION: AcpiGetPossibleResources 245 * 246 * PARAMETERS: DeviceHandle - a handle to the device object for the 247 * device we are querying 248 * RetBuffer - a pointer to a buffer to receive the 249 * resources for the device 250 * 251 * RETURN: Status 252 * 253 * DESCRIPTION: This function is called to get a list of the possible resources 254 * for a specific device. The caller must first acquire a handle 255 * for the desired device. The resource data is placed in the 256 * buffer pointed to by the RetBuffer variable. 257 * 258 * If the function fails an appropriate status will be returned 259 * and the value of RetBuffer is undefined. 260 * 261 ******************************************************************************/ 262 263ACPI_STATUS 264AcpiGetPossibleResources ( 265 ACPI_HANDLE DeviceHandle, 266 ACPI_BUFFER *RetBuffer) 267{ 268 ACPI_STATUS Status; 269 270 271 ACPI_FUNCTION_TRACE ("AcpiGetPossibleResources"); 272 273 274 /* 275 * Must have a valid handle and buffer, So we have to have a handle 276 * and a return buffer structure, and if there is a non-zero buffer length 277 * we also need a valid pointer in the buffer. If it's a zero buffer length, 278 * we'll be returning the needed buffer size, so keep going. 279 */ 280 if (!DeviceHandle) 281 { 282 return_ACPI_STATUS (AE_BAD_PARAMETER); 283 } 284 285 Status = AcpiUtValidateBuffer (RetBuffer); 286 if (ACPI_FAILURE (Status)) 287 { 288 return_ACPI_STATUS (Status); 289 } 290 291 Status = AcpiRsGetPrsMethodData (DeviceHandle, RetBuffer); 292 return_ACPI_STATUS (Status); 293} 294 295 296/******************************************************************************* 297 * 298 * FUNCTION: AcpiSetCurrentResources 299 * 300 * PARAMETERS: DeviceHandle - a handle to the device object for the 301 * device we are changing the resources of 302 * InBuffer - a pointer to a buffer containing the 303 * resources to be set for the device 304 * 305 * RETURN: Status 306 * 307 * DESCRIPTION: This function is called to set the current resources for a 308 * specific device. The caller must first acquire a handle for 309 * the desired device. The resource data is passed to the routine 310 * the buffer pointed to by the InBuffer variable. 311 * 312 ******************************************************************************/ 313 314ACPI_STATUS 315AcpiSetCurrentResources ( 316 ACPI_HANDLE DeviceHandle, 317 ACPI_BUFFER *InBuffer) 318{ 319 ACPI_STATUS Status; 320 321 322 ACPI_FUNCTION_TRACE ("AcpiSetCurrentResources"); 323 324 325 /* 326 * Must have a valid handle and buffer 327 */ 328 if ((!DeviceHandle) || 329 (!InBuffer) || 330 (!InBuffer->Pointer) || 331 (!InBuffer->Length)) 332 { 333 return_ACPI_STATUS (AE_BAD_PARAMETER); 334 } 335 336 Status = AcpiRsSetSrsMethodData (DeviceHandle, InBuffer); 337 return_ACPI_STATUS (Status); 338} 339