rsxface.c revision 91116
1254721Semaste/******************************************************************************* 2254721Semaste * 3254721Semaste * Module Name: rsxface - Public interfaces to the resource manager 4254721Semaste * $Revision: 18 $ 5254721Semaste * 6254721Semaste ******************************************************************************/ 7254721Semaste 8254721Semaste/****************************************************************************** 9254721Semaste * 10254721Semaste * 1. Copyright Notice 11254721Semaste * 12254721Semaste * Some or all of this work - Copyright (c) 1999 - 2002, Intel Corp. 13254721Semaste * All rights reserved. 14254721Semaste * 15254721Semaste * 2. License 16254721Semaste * 17254721Semaste * 2.1. This is your license from Intel Corp. under its intellectual property 18254721Semaste * rights. You may have additional license terms from the party that provided 19254721Semaste * you this software, covering your right to use that party's intellectual 20254721Semaste * property rights. 21254721Semaste * 22254721Semaste * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23254721Semaste * copy of the source code appearing in this file ("Covered Code") an 24254721Semaste * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25254721Semaste * base code distributed originally by Intel ("Original Intel Code") to copy, 26254721Semaste * make derivatives, distribute, use and display any portion of the Covered 27254721Semaste * Code in any form, with the right to sublicense such rights; and 28254721Semaste * 29254721Semaste * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30254721Semaste * license (with the right to sublicense), under only those claims of Intel 31254721Semaste * patents that are infringed by the Original Intel Code, to make, use, sell, 32254721Semaste * offer to sell, and import the Covered Code and derivative works thereof 33254721Semaste * solely to the minimum extent necessary to exercise the above copyright 34254721Semaste * license, and in no event shall the patent license extend to any additions 35254721Semaste * to or modifications of the Original Intel Code. No other license or right 36254721Semaste * is granted directly or by implication, estoppel or otherwise; 37254721Semaste * 38254721Semaste * The above copyright and patent license is granted only if the following 39254721Semaste * conditions are met: 40254721Semaste * 41254721Semaste * 3. Conditions 42254721Semaste * 43254721Semaste * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44254721Semaste * Redistribution of source code of any substantial portion of the Covered 45254721Semaste * Code or modification with rights to further distribute source must include 46254721Semaste * the above Copyright Notice, the above License, this list of Conditions, 47254721Semaste * and the following Disclaimer and Export Compliance provision. In addition, 48254721Semaste * Licensee must cause all Covered Code to which Licensee contributes to 49254721Semaste * contain a file documenting the changes Licensee made to create that Covered 50254721Semaste * Code and the date of any change. Licensee must include in that file the 51254721Semaste * documentation of any changes made by any predecessor Licensee. Licensee 52254721Semaste * must include a prominent statement that the modification is derived, 53254721Semaste * directly or indirectly, from Original Intel Code. 54254721Semaste * 55254721Semaste * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56254721Semaste * Redistribution of source code of any substantial portion of the Covered 57254721Semaste * Code or modification without rights to further distribute source must 58254721Semaste * include the following Disclaimer and Export Compliance provision in the 59254721Semaste * documentation and/or other materials provided with distribution. In 60254721Semaste * addition, Licensee may not authorize further sublicense of source of any 61254721Semaste * portion of the Covered Code, and must include terms to the effect that the 62254721Semaste * license from Licensee to its licensee is limited to the intellectual 63254721Semaste * property embodied in the software Licensee provides to its licensee, and 64254721Semaste * not to intellectual property embodied in modifications its licensee may 65254721Semaste * make. 66254721Semaste * 67254721Semaste * 3.3. Redistribution of Executable. Redistribution in executable form of any 68254721Semaste * substantial portion of the Covered Code or modification must reproduce the 69254721Semaste * above Copyright Notice, and the following Disclaimer and Export Compliance 70254721Semaste * provision in the documentation and/or other materials provided with the 71254721Semaste * distribution. 72254721Semaste * 73254721Semaste * 3.4. Intel retains all right, title, and interest in and to the Original 74254721Semaste * Intel Code. 75254721Semaste * 76254721Semaste * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77254721Semaste * Intel shall be used in advertising or otherwise to promote the sale, use or 78254721Semaste * other dealings in products derived from or relating to the Covered Code 79254721Semaste * without prior written authorization from Intel. 80254721Semaste * 81254721Semaste * 4. Disclaimer and Export Compliance 82254721Semaste * 83254721Semaste * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84254721Semaste * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85254721Semaste * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86254721Semaste * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87254721Semaste * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88254721Semaste * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89254721Semaste * PARTICULAR PURPOSE. 90254721Semaste * 91254721Semaste * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92254721Semaste * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93254721Semaste * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94254721Semaste * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95254721Semaste * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96254721Semaste * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97254721Semaste * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98254721Semaste * LIMITED REMEDY. 99254721Semaste * 100254721Semaste * 4.3. Licensee shall not export, either directly or indirectly, any of this 101254721Semaste * software or system incorporating such software without first obtaining any 102254721Semaste * required license or other approval from the U. S. Department of Commerce or 103254721Semaste * any other agency or department of the United States Government. In the 104254721Semaste * event Licensee exports any such software from the United States or 105254721Semaste * re-exports any such software from a foreign destination, Licensee shall 106254721Semaste * ensure that the distribution and export/re-export of the software is in 107254721Semaste * compliance with all laws, regulations, orders, or other restrictions of the 108254721Semaste * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109254721Semaste * any of its subsidiaries will export/re-export any technical data, process, 110254721Semaste * software, or service, directly or indirectly, to any country for which the 111254721Semaste * United States government or any agency thereof requires an export license, 112254721Semaste * other governmental approval, or letter of assurance, without first obtaining 113254721Semaste * such license, approval or letter. 114254721Semaste * 115254721Semaste *****************************************************************************/ 116254721Semaste 117254721Semaste 118254721Semaste#define __RSXFACE_C__ 119254721Semaste 120254721Semaste#include "acpi.h" 121254721Semaste#include "acinterp.h" 122254721Semaste#include "acnamesp.h" 123254721Semaste#include "acresrc.h" 124254721Semaste 125254721Semaste#define _COMPONENT ACPI_RESOURCES 126254721Semaste ACPI_MODULE_NAME ("rsxface") 127254721Semaste 128254721Semaste 129254721Semaste/******************************************************************************* 130254721Semaste * 131254721Semaste * FUNCTION: AcpiGetIrqRoutingTable 132254721Semaste * 133254721Semaste * PARAMETERS: DeviceHandle - a handle to the Bus device we are querying 134254721Semaste * RetBuffer - a pointer to a buffer to receive the 135254721Semaste * current resources for the device 136254721Semaste * 137254721Semaste * RETURN: Status 138254721Semaste * 139254721Semaste * DESCRIPTION: This function is called to get the IRQ routing table for a 140254721Semaste * specific bus. The caller must first acquire a handle for the 141254721Semaste * desired bus. The routine table is placed in the buffer pointed 142254721Semaste * to by the RetBuffer variable parameter. 143254721Semaste * 144254721Semaste * If the function fails an appropriate status will be returned 145254721Semaste * and the value of RetBuffer is undefined. 146254721Semaste * 147254721Semaste * This function attempts to execute the _PRT method contained in 148254721Semaste * the object indicated by the passed DeviceHandle. 149254721Semaste * 150254721Semaste ******************************************************************************/ 151254721Semaste 152254721SemasteACPI_STATUS 153254721SemasteAcpiGetIrqRoutingTable ( 154254721Semaste ACPI_HANDLE DeviceHandle, 155254721Semaste ACPI_BUFFER *RetBuffer) 156254721Semaste{ 157254721Semaste ACPI_STATUS Status; 158254721Semaste 159254721Semaste 160254721Semaste ACPI_FUNCTION_TRACE ("AcpiGetIrqRoutingTable "); 161254721Semaste 162254721Semaste 163254721Semaste /* 164254721Semaste * Must have a valid handle and buffer, So we have to have a handle 165254721Semaste * and a return buffer structure, and if there is a non-zero buffer length 166254721Semaste * we also need a valid pointer in the buffer. If it's a zero buffer length, 167254721Semaste * we'll be returning the needed buffer size, so keep going. 168254721Semaste */ 169254721Semaste if (!DeviceHandle) 170254721Semaste { 171254721Semaste return_ACPI_STATUS (AE_BAD_PARAMETER); 172254721Semaste } 173254721Semaste 174254721Semaste Status = AcpiUtValidateBuffer (RetBuffer); 175254721Semaste if (ACPI_FAILURE (Status)) 176254721Semaste { 177254721Semaste return_ACPI_STATUS (Status); 178254721Semaste } 179254721Semaste 180254721Semaste Status = AcpiRsGetPrtMethodData (DeviceHandle, RetBuffer); 181254721Semaste return_ACPI_STATUS (Status); 182254721Semaste} 183254721Semaste 184254721Semaste 185/******************************************************************************* 186 * 187 * FUNCTION: AcpiGetCurrentResources 188 * 189 * PARAMETERS: DeviceHandle - a handle to the device object for the 190 * device we are querying 191 * RetBuffer - a pointer to a buffer to receive the 192 * current resources for the device 193 * 194 * RETURN: Status 195 * 196 * DESCRIPTION: This function is called to get the current resources for a 197 * specific device. The caller must first acquire a handle for 198 * the desired device. The resource data is placed in the buffer 199 * pointed to by the RetBuffer variable parameter. 200 * 201 * If the function fails an appropriate status will be returned 202 * and the value of RetBuffer is undefined. 203 * 204 * This function attempts to execute the _CRS method contained in 205 * the object indicated by the passed DeviceHandle. 206 * 207 ******************************************************************************/ 208 209ACPI_STATUS 210AcpiGetCurrentResources ( 211 ACPI_HANDLE DeviceHandle, 212 ACPI_BUFFER *RetBuffer) 213{ 214 ACPI_STATUS Status; 215 216 217 ACPI_FUNCTION_TRACE ("AcpiGetCurrentResources"); 218 219 220 /* 221 * Must have a valid handle and buffer, So we have to have a handle 222 * and a return buffer structure, and if there is a non-zero buffer length 223 * we also need a valid pointer in the buffer. If it's a zero buffer length, 224 * we'll be returning the needed buffer size, so keep going. 225 */ 226 if (!DeviceHandle) 227 { 228 return_ACPI_STATUS (AE_BAD_PARAMETER); 229 } 230 231 Status = AcpiUtValidateBuffer (RetBuffer); 232 if (ACPI_FAILURE (Status)) 233 { 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