rsxface.c revision 70243
190075Sobrien/******************************************************************************* 2169689Skan * 3169689Skan * Module Name: rsxface - Public interfaces to the ACPI subsystem 490075Sobrien * $Revision: 9 $ 5169689Skan * 690075Sobrien ******************************************************************************/ 7132718Skan 890075Sobrien/****************************************************************************** 9132718Skan * 10132718Skan * 1. Copyright Notice 11132718Skan * 12132718Skan * Some or all of this work - Copyright (c) 1999, 2000, Intel Corp. 1390075Sobrien * All rights reserved. 14132718Skan * 15132718Skan * 2. License 16132718Skan * 17132718Skan * 2.1. This is your license from Intel Corp. under its intellectual property 1890075Sobrien * rights. You may have additional license terms from the party that provided 19132718Skan * you this software, covering your right to use that party's intellectual 20132718Skan * property rights. 21169689Skan * 22169689Skan * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 2390075Sobrien * copy of the source code appearing in this file ("Covered Code") an 24169689Skan * irrevocable, perpetual, worldwide license under Intel's copyrights in the 2590075Sobrien * base code distributed originally by Intel ("Original Intel Code") to copy, 26169689Skan * make derivatives, distribute, use and display any portion of the Covered 27169689Skan * Code in any form, with the right to sublicense such rights; and 2890075Sobrien * 29169689Skan * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30169689Skan * license (with the right to sublicense), under only those claims of Intel 3190075Sobrien * patents that are infringed by the Original Intel Code, to make, use, sell, 32169689Skan * offer to sell, and import the Covered Code and derivative works thereof 3390075Sobrien * solely to the minimum extent necessary to exercise the above copyright 34169689Skan * license, and in no event shall the patent license extend to any additions 3590075Sobrien * to or modifications of the Original Intel Code. No other license or right 36169689Skan * is granted directly or by implication, estoppel or otherwise; 37169689Skan * 38169689Skan * The above copyright and patent license is granted only if the following 39169689Skan * conditions are met: 40169689Skan * 4190075Sobrien * 3. Conditions 42169689Skan * 43169689Skan * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44169689Skan * Redistribution of source code of any substantial portion of the Covered 45169689Skan * Code or modification with rights to further distribute source must include 46169689Skan * the above Copyright Notice, the above License, this list of Conditions, 47169689Skan * and the following Disclaimer and Export Compliance provision. In addition, 48169689Skan * Licensee must cause all Covered Code to which Licensee contributes to 49169689Skan * contain a file documenting the changes Licensee made to create that Covered 50169689Skan * Code and the date of any change. Licensee must include in that file the 51169689Skan * documentation of any changes made by any predecessor Licensee. Licensee 52169689Skan * must include a prominent statement that the modification is derived, 53169689Skan * directly or indirectly, from Original Intel Code. 54169689Skan * 55169689Skan * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56169689Skan * Redistribution of source code of any substantial portion of the Covered 57169689Skan * Code or modification without rights to further distribute source must 58169689Skan * include the following Disclaimer and Export Compliance provision in the 59169689Skan * documentation and/or other materials provided with distribution. In 60169689Skan * addition, Licensee may not authorize further sublicense of source of any 6190075Sobrien * portion of the Covered Code, and must include terms to the effect that the 62169689Skan * license from Licensee to its licensee is limited to the intellectual 63169689Skan * property embodied in the software Licensee provides to its licensee, and 64169689Skan * not to intellectual property embodied in modifications its licensee may 65169689Skan * make. 66169689Skan * 6790075Sobrien * 3.3. Redistribution of Executable. Redistribution in executable form of any 68169689Skan * substantial portion of the Covered Code or modification must reproduce the 6990075Sobrien * above Copyright Notice, and the following Disclaimer and Export Compliance 70169689Skan * provision in the documentation and/or other materials provided with the 71169689Skan * distribution. 72169689Skan * 73169689Skan * 3.4. Intel retains all right, title, and interest in and to the Original 74169689Skan * Intel Code. 75169689Skan * 76169689Skan * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77169689Skan * Intel shall be used in advertising or otherwise to promote the sale, use or 78169689Skan * other dealings in products derived from or relating to the Covered Code 79169689Skan * without prior written authorization from Intel. 80169689Skan * 8190075Sobrien * 4. Disclaimer and Export Compliance 82169689Skan * 8390075Sobrien * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84169689Skan * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85169689Skan * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 8690075Sobrien * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87169689Skan * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88169689Skan * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89169689Skan * PARTICULAR PURPOSE. 90169689Skan * 91169689Skan * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92169689Skan * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93169689Skan * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94169689Skan * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95169689Skan * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96169689Skan * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97169689Skan * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98169689Skan * LIMITED REMEDY. 99169689Skan * 100169689Skan * 4.3. Licensee shall not export, either directly or indirectly, any of this 101169689Skan * software or system incorporating such software without first obtaining any 102169689Skan * required license or other approval from the U. S. Department of Commerce or 103169689Skan * any other agency or department of the United States Government. In the 104169689Skan * event Licensee exports any such software from the United States or 105169689Skan * re-exports any such software from a foreign destination, Licensee shall 106169689Skan * ensure that the distribution and export/re-export of the software is in 107169689Skan * compliance with all laws, regulations, orders, or other restrictions of the 108169689Skan * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109169689Skan * any of its subsidiaries will export/re-export any technical data, process, 110169689Skan * software, or service, directly or indirectly, to any country for which the 111169689Skan * United States government or any agency thereof requires an export license, 112169689Skan * other governmental approval, or letter of assurance, without first obtaining 113169689Skan * such license, approval or letter. 114169689Skan * 115169689Skan *****************************************************************************/ 116169689Skan 117169689Skan 118169689Skan#define __RSXFACE_C__ 119169689Skan 120169689Skan#include "acpi.h" 121169689Skan#include "acinterp.h" 122169689Skan#include "acnamesp.h" 123169689Skan#include "acresrc.h" 124169689Skan 125169689Skan#define _COMPONENT RESOURCE_MANAGER 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 - the status of the call 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 * Must have a valid handle and buffer, So we have to have a handle 164 * and a return buffer structure, and if there is a non-zero buffer length 165 * we also need a valid pointer in the buffer. If it's a zero buffer length, 166 * we'll be returning the needed buffer size, so keep going. 167 */ 168 if ((!DeviceHandle) || 169 (!RetBuffer) || 170 ((!RetBuffer->Pointer) && (RetBuffer->Length))) 171 { 172 return_ACPI_STATUS (AE_BAD_PARAMETER); 173 } 174 175 Status = AcpiRsGetPrtMethodData (DeviceHandle, RetBuffer); 176 177 return_ACPI_STATUS (Status); 178} 179 180 181/******************************************************************************* 182 * 183 * FUNCTION: AcpiGetCurrentResources 184 * 185 * PARAMETERS: DeviceHandle - a handle to the device object for the 186 * device we are querying 187 * RetBuffer - a pointer to a buffer to receive the 188 * current resources for the device 189 * 190 * RETURN: Status - the status of the call 191 * 192 * DESCRIPTION: This function is called to get the current resources for a 193 * specific device. The caller must first acquire a handle for 194 * the desired device. The resource data is placed in the buffer 195 * pointed to by the RetBuffer variable parameter. 196 * 197 * If the function fails an appropriate status will be returned 198 * and the value of RetBuffer is undefined. 199 * 200 * This function attempts to execute the _CRS method contained in 201 * the object indicated by the passed DeviceHandle. 202 * 203 ******************************************************************************/ 204 205ACPI_STATUS 206AcpiGetCurrentResources ( 207 ACPI_HANDLE DeviceHandle, 208 ACPI_BUFFER *RetBuffer) 209{ 210 ACPI_STATUS Status; 211 212 213 FUNCTION_TRACE ("AcpiGetCurrentResources"); 214 215 /* 216 * Must have a valid handle and buffer, So we have to have a handle 217 * and a return buffer structure, and if there is a non-zero buffer length 218 * we also need a valid pointer in the buffer. If it's a zero buffer length, 219 * we'll be returning the needed buffer size, so keep going. 220 */ 221 if ((!DeviceHandle) || 222 (!RetBuffer) || 223 ((RetBuffer->Length) && (!RetBuffer->Pointer))) 224 { 225 return_ACPI_STATUS (AE_BAD_PARAMETER); 226 } 227 228 Status = AcpiRsGetCrsMethodData (DeviceHandle, RetBuffer); 229 230 return_ACPI_STATUS (Status); 231} 232 233 234/******************************************************************************* 235 * 236 * FUNCTION: AcpiGetPossibleResources 237 * 238 * PARAMETERS: DeviceHandle - a handle to the device object for the 239 * device we are querying 240 * RetBuffer - a pointer to a buffer to receive the 241 * resources for the device 242 * 243 * RETURN: Status - the status of the call 244 * 245 * DESCRIPTION: This function is called to get a list of the possible resources 246 * for a specific device. The caller must first acquire a handle 247 * for the desired device. The resource data is placed in the 248 * buffer pointed to by the RetBuffer variable. 249 * 250 * If the function fails an appropriate status will be returned 251 * and the value of RetBuffer is undefined. 252 * 253 ******************************************************************************/ 254 255ACPI_STATUS 256AcpiGetPossibleResources ( 257 ACPI_HANDLE DeviceHandle, 258 ACPI_BUFFER *RetBuffer) 259{ 260 ACPI_STATUS Status; 261 262 263 FUNCTION_TRACE ("AcpiGetPossibleResources"); 264 265 /* 266 * Must have a valid handle and buffer, So we have to have a handle 267 * and a return buffer structure, and if there is a non-zero buffer length 268 * we also need a valid pointer in the buffer. If it's a zero buffer length, 269 * we'll be returning the needed buffer size, so keep going. 270 */ 271 if ((!DeviceHandle) || 272 (!RetBuffer) || 273 ((RetBuffer->Length) && (!RetBuffer->Pointer))) 274 { 275 return_ACPI_STATUS (AE_BAD_PARAMETER); 276 } 277 278 Status = AcpiRsGetPrsMethodData (DeviceHandle, RetBuffer); 279 280 return_ACPI_STATUS (Status); 281} 282 283 284/******************************************************************************* 285 * 286 * FUNCTION: AcpiSetCurrentResources 287 * 288 * PARAMETERS: DeviceHandle - a handle to the device object for the 289 * device we are changing the resources of 290 * InBuffer - a pointer to a buffer containing the 291 * resources to be set for the device 292 * 293 * RETURN: Status - the status of the call 294 * 295 * DESCRIPTION: This function is called to set the current resources for a 296 * specific device. The caller must first acquire a handle for 297 * the desired device. The resource data is passed to the routine 298 * the buffer pointed to by the InBuffer variable. 299 * 300 ******************************************************************************/ 301 302ACPI_STATUS 303AcpiSetCurrentResources ( 304 ACPI_HANDLE DeviceHandle, 305 ACPI_BUFFER *InBuffer) 306{ 307 ACPI_STATUS Status; 308 309 310 FUNCTION_TRACE ("AcpiSetCurrentResources"); 311 312 /* 313 * Must have a valid handle and buffer 314 */ 315 if ((!DeviceHandle) || 316 (!InBuffer) || 317 (!InBuffer->Pointer) || 318 (!InBuffer->Length)) 319 { 320 return_ACPI_STATUS (AE_BAD_PARAMETER); 321 } 322 323 Status = AcpiRsSetSrsMethodData (DeviceHandle, InBuffer); 324 325 return_ACPI_STATUS (Status); 326} 327