rsxface.c revision 83174
1/******************************************************************************* 2 * 3 * Module Name: rsxface - Public interfaces to the resource manager 4 * $Revision: 14 $ 5 * 6 ******************************************************************************/ 7 8/****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp. 13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117 118#define __RSXFACE_C__ 119 120#include "acpi.h" 121#include "acinterp.h" 122#include "acnamesp.h" 123#include "acresrc.h" 124 125#define _COMPONENT ACPI_RESOURCES 126 MODULE_NAME ("rsxface") 127 128 129/******************************************************************************* 130 * 131 * FUNCTION: AcpiGetIrqRoutingTable 132 * 133 * PARAMETERS: DeviceHandle - a handle to the Bus device we are querying 134 * RetBuffer - a pointer to a buffer to receive the 135 * current resources for the device 136 * 137 * RETURN: Status 138 * 139 * DESCRIPTION: This function is called to get the IRQ routing table for a 140 * specific bus. The caller must first acquire a handle for the 141 * desired bus. The routine table is placed in the buffer pointed 142 * to by the RetBuffer variable parameter. 143 * 144 * If the function fails an appropriate status will be returned 145 * and the value of RetBuffer is undefined. 146 * 147 * This function attempts to execute the _PRT method contained in 148 * the object indicated by the passed DeviceHandle. 149 * 150 ******************************************************************************/ 151 152ACPI_STATUS 153AcpiGetIrqRoutingTable ( 154 ACPI_HANDLE DeviceHandle, 155 ACPI_BUFFER *RetBuffer) 156{ 157 ACPI_STATUS Status; 158 159 160 FUNCTION_TRACE ("AcpiGetIrqRoutingTable "); 161 162 163 /* Ensure that ACPI has been initialized */ 164 165 ACPI_IS_INITIALIZATION_COMPLETE (Status); 166 if (ACPI_FAILURE (Status)) 167 { 168 return_ACPI_STATUS (Status); 169 } 170 171 /* 172 * Must have a valid handle and buffer, So we have to have a handle 173 * and a return buffer structure, and if there is a non-zero buffer length 174 * we also need a valid pointer in the buffer. If it's a zero buffer length, 175 * we'll be returning the needed buffer size, so keep going. 176 */ 177 if ((!DeviceHandle) || 178 (!RetBuffer) || 179 ((!RetBuffer->Pointer) && (RetBuffer->Length))) 180 { 181 return_ACPI_STATUS (AE_BAD_PARAMETER); 182 } 183 184 Status = AcpiRsGetPrtMethodData (DeviceHandle, RetBuffer); 185 return_ACPI_STATUS (Status); 186} 187 188 189/******************************************************************************* 190 * 191 * FUNCTION: AcpiGetCurrentResources 192 * 193 * PARAMETERS: DeviceHandle - a handle to the device object for the 194 * device we are querying 195 * RetBuffer - a pointer to a buffer to receive the 196 * current resources for the device 197 * 198 * RETURN: Status 199 * 200 * DESCRIPTION: This function is called to get the current resources for a 201 * specific device. The caller must first acquire a handle for 202 * the desired device. The resource data is placed in the buffer 203 * pointed to by the RetBuffer variable parameter. 204 * 205 * If the function fails an appropriate status will be returned 206 * and the value of RetBuffer is undefined. 207 * 208 * This function attempts to execute the _CRS method contained in 209 * the object indicated by the passed DeviceHandle. 210 * 211 ******************************************************************************/ 212 213ACPI_STATUS 214AcpiGetCurrentResources ( 215 ACPI_HANDLE DeviceHandle, 216 ACPI_BUFFER *RetBuffer) 217{ 218 ACPI_STATUS Status; 219 220 221 FUNCTION_TRACE ("AcpiGetCurrentResources"); 222 223 224 /* Ensure that ACPI has been initialized */ 225 226 ACPI_IS_INITIALIZATION_COMPLETE (Status); 227 if (ACPI_FAILURE (Status)) 228 { 229 return_ACPI_STATUS (Status); 230 } 231 232 /* 233 * Must have a valid handle and buffer, So we have to have a handle 234 * and a return buffer structure, and if there is a non-zero buffer length 235 * we also need a valid pointer in the buffer. If it's a zero buffer length, 236 * we'll be returning the needed buffer size, so keep going. 237 */ 238 if ((!DeviceHandle) || 239 (!RetBuffer) || 240 ((RetBuffer->Length) && (!RetBuffer->Pointer))) 241 { 242 return_ACPI_STATUS (AE_BAD_PARAMETER); 243 } 244 245 Status = AcpiRsGetCrsMethodData (DeviceHandle, RetBuffer); 246 return_ACPI_STATUS (Status); 247} 248 249 250/******************************************************************************* 251 * 252 * FUNCTION: AcpiGetPossibleResources 253 * 254 * PARAMETERS: DeviceHandle - a handle to the device object for the 255 * device we are querying 256 * RetBuffer - a pointer to a buffer to receive the 257 * resources for the device 258 * 259 * RETURN: Status 260 * 261 * DESCRIPTION: This function is called to get a list of the possible resources 262 * for a specific device. The caller must first acquire a handle 263 * for the desired device. The resource data is placed in the 264 * buffer pointed to by the RetBuffer variable. 265 * 266 * If the function fails an appropriate status will be returned 267 * and the value of RetBuffer is undefined. 268 * 269 ******************************************************************************/ 270 271ACPI_STATUS 272AcpiGetPossibleResources ( 273 ACPI_HANDLE DeviceHandle, 274 ACPI_BUFFER *RetBuffer) 275{ 276 ACPI_STATUS Status; 277 278 279 FUNCTION_TRACE ("AcpiGetPossibleResources"); 280 281 282 /* Ensure that ACPI has been initialized */ 283 284 ACPI_IS_INITIALIZATION_COMPLETE (Status); 285 if (ACPI_FAILURE (Status)) 286 { 287 return_ACPI_STATUS (Status); 288 } 289 290 /* 291 * Must have a valid handle and buffer, So we have to have a handle 292 * and a return buffer structure, and if there is a non-zero buffer length 293 * we also need a valid pointer in the buffer. If it's a zero buffer length, 294 * we'll be returning the needed buffer size, so keep going. 295 */ 296 if ((!DeviceHandle) || 297 (!RetBuffer) || 298 ((RetBuffer->Length) && (!RetBuffer->Pointer))) 299 { 300 return_ACPI_STATUS (AE_BAD_PARAMETER); 301 } 302 303 Status = AcpiRsGetPrsMethodData (DeviceHandle, RetBuffer); 304 return_ACPI_STATUS (Status); 305} 306 307 308/******************************************************************************* 309 * 310 * FUNCTION: AcpiSetCurrentResources 311 * 312 * PARAMETERS: DeviceHandle - a handle to the device object for the 313 * device we are changing the resources of 314 * InBuffer - a pointer to a buffer containing the 315 * resources to be set for the device 316 * 317 * RETURN: Status 318 * 319 * DESCRIPTION: This function is called to set the current resources for a 320 * specific device. The caller must first acquire a handle for 321 * the desired device. The resource data is passed to the routine 322 * the buffer pointed to by the InBuffer variable. 323 * 324 ******************************************************************************/ 325 326ACPI_STATUS 327AcpiSetCurrentResources ( 328 ACPI_HANDLE DeviceHandle, 329 ACPI_BUFFER *InBuffer) 330{ 331 ACPI_STATUS Status; 332 333 334 FUNCTION_TRACE ("AcpiSetCurrentResources"); 335 336 337 /* Ensure that ACPI has been initialized */ 338 339 ACPI_IS_INITIALIZATION_COMPLETE (Status); 340 if (ACPI_FAILURE (Status)) 341 { 342 return_ACPI_STATUS (Status); 343 } 344 345 /* 346 * Must have a valid handle and buffer 347 */ 348 if ((!DeviceHandle) || 349 (!InBuffer) || 350 (!InBuffer->Pointer) || 351 (!InBuffer->Length)) 352 { 353 return_ACPI_STATUS (AE_BAD_PARAMETER); 354 } 355 356 Status = AcpiRsSetSrsMethodData (DeviceHandle, InBuffer); 357 return_ACPI_STATUS (Status); 358} 359