evregion.c revision 1.1.1.2.8.2
1 1.1.1.2.8.2 jruoho /****************************************************************************** 2 1.1.1.2.8.2 jruoho * 3 1.1.1.2.8.2 jruoho * Module Name: evregion - ACPI AddressSpace (OpRegion) handler dispatch 4 1.1.1.2.8.2 jruoho * 5 1.1.1.2.8.2 jruoho *****************************************************************************/ 6 1.1.1.2.8.2 jruoho 7 1.1.1.2.8.2 jruoho /* 8 1.1.1.2.8.2 jruoho * Copyright (C) 2000 - 2011, Intel Corp. 9 1.1.1.2.8.2 jruoho * All rights reserved. 10 1.1.1.2.8.2 jruoho * 11 1.1.1.2.8.2 jruoho * Redistribution and use in source and binary forms, with or without 12 1.1.1.2.8.2 jruoho * modification, are permitted provided that the following conditions 13 1.1.1.2.8.2 jruoho * are met: 14 1.1.1.2.8.2 jruoho * 1. Redistributions of source code must retain the above copyright 15 1.1.1.2.8.2 jruoho * notice, this list of conditions, and the following disclaimer, 16 1.1.1.2.8.2 jruoho * without modification. 17 1.1.1.2.8.2 jruoho * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 1.1.1.2.8.2 jruoho * substantially similar to the "NO WARRANTY" disclaimer below 19 1.1.1.2.8.2 jruoho * ("Disclaimer") and any redistribution must be conditioned upon 20 1.1.1.2.8.2 jruoho * including a substantially similar Disclaimer requirement for further 21 1.1.1.2.8.2 jruoho * binary redistribution. 22 1.1.1.2.8.2 jruoho * 3. Neither the names of the above-listed copyright holders nor the names 23 1.1.1.2.8.2 jruoho * of any contributors may be used to endorse or promote products derived 24 1.1.1.2.8.2 jruoho * from this software without specific prior written permission. 25 1.1.1.2.8.2 jruoho * 26 1.1.1.2.8.2 jruoho * Alternatively, this software may be distributed under the terms of the 27 1.1.1.2.8.2 jruoho * GNU General Public License ("GPL") version 2 as published by the Free 28 1.1.1.2.8.2 jruoho * Software Foundation. 29 1.1.1.2.8.2 jruoho * 30 1.1.1.2.8.2 jruoho * NO WARRANTY 31 1.1.1.2.8.2 jruoho * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 1.1.1.2.8.2 jruoho * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 1.1.1.2.8.2 jruoho * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34 1.1.1.2.8.2 jruoho * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 1.1.1.2.8.2 jruoho * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 1.1.1.2.8.2 jruoho * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 1.1.1.2.8.2 jruoho * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 1.1.1.2.8.2 jruoho * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 1.1.1.2.8.2 jruoho * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 1.1.1.2.8.2 jruoho * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 1.1.1.2.8.2 jruoho * POSSIBILITY OF SUCH DAMAGES. 42 1.1.1.2.8.2 jruoho */ 43 1.1.1.2.8.2 jruoho 44 1.1.1.2.8.2 jruoho 45 1.1.1.2.8.2 jruoho #define __EVREGION_C__ 46 1.1.1.2.8.2 jruoho 47 1.1.1.2.8.2 jruoho #include "acpi.h" 48 1.1.1.2.8.2 jruoho #include "accommon.h" 49 1.1.1.2.8.2 jruoho #include "acevents.h" 50 1.1.1.2.8.2 jruoho #include "acnamesp.h" 51 1.1.1.2.8.2 jruoho #include "acinterp.h" 52 1.1.1.2.8.2 jruoho 53 1.1.1.2.8.2 jruoho #define _COMPONENT ACPI_EVENTS 54 1.1.1.2.8.2 jruoho ACPI_MODULE_NAME ("evregion") 55 1.1.1.2.8.2 jruoho 56 1.1.1.2.8.2 jruoho 57 1.1.1.2.8.2 jruoho /* Local prototypes */ 58 1.1.1.2.8.2 jruoho 59 1.1.1.2.8.2 jruoho static BOOLEAN 60 1.1.1.2.8.2 jruoho AcpiEvHasDefaultHandler ( 61 1.1.1.2.8.2 jruoho ACPI_NAMESPACE_NODE *Node, 62 1.1.1.2.8.2 jruoho ACPI_ADR_SPACE_TYPE SpaceId); 63 1.1.1.2.8.2 jruoho 64 1.1.1.2.8.2 jruoho static ACPI_STATUS 65 1.1.1.2.8.2 jruoho AcpiEvRegRun ( 66 1.1.1.2.8.2 jruoho ACPI_HANDLE ObjHandle, 67 1.1.1.2.8.2 jruoho UINT32 Level, 68 1.1.1.2.8.2 jruoho void *Context, 69 1.1.1.2.8.2 jruoho void **ReturnValue); 70 1.1.1.2.8.2 jruoho 71 1.1.1.2.8.2 jruoho static ACPI_STATUS 72 1.1.1.2.8.2 jruoho AcpiEvInstallHandler ( 73 1.1.1.2.8.2 jruoho ACPI_HANDLE ObjHandle, 74 1.1.1.2.8.2 jruoho UINT32 Level, 75 1.1.1.2.8.2 jruoho void *Context, 76 1.1.1.2.8.2 jruoho void **ReturnValue); 77 1.1.1.2.8.2 jruoho 78 1.1.1.2.8.2 jruoho /* These are the address spaces that will get default handlers */ 79 1.1.1.2.8.2 jruoho 80 1.1.1.2.8.2 jruoho #define ACPI_NUM_DEFAULT_SPACES 4 81 1.1.1.2.8.2 jruoho 82 1.1.1.2.8.2 jruoho static UINT8 AcpiGbl_DefaultAddressSpaces[ACPI_NUM_DEFAULT_SPACES] = 83 1.1.1.2.8.2 jruoho { 84 1.1.1.2.8.2 jruoho ACPI_ADR_SPACE_SYSTEM_MEMORY, 85 1.1.1.2.8.2 jruoho ACPI_ADR_SPACE_SYSTEM_IO, 86 1.1.1.2.8.2 jruoho ACPI_ADR_SPACE_PCI_CONFIG, 87 1.1.1.2.8.2 jruoho ACPI_ADR_SPACE_DATA_TABLE 88 1.1.1.2.8.2 jruoho }; 89 1.1.1.2.8.2 jruoho 90 1.1.1.2.8.2 jruoho 91 1.1.1.2.8.2 jruoho /******************************************************************************* 92 1.1.1.2.8.2 jruoho * 93 1.1.1.2.8.2 jruoho * FUNCTION: AcpiEvInstallRegionHandlers 94 1.1.1.2.8.2 jruoho * 95 1.1.1.2.8.2 jruoho * PARAMETERS: None 96 1.1.1.2.8.2 jruoho * 97 1.1.1.2.8.2 jruoho * RETURN: Status 98 1.1.1.2.8.2 jruoho * 99 1.1.1.2.8.2 jruoho * DESCRIPTION: Installs the core subsystem default address space handlers. 100 1.1.1.2.8.2 jruoho * 101 1.1.1.2.8.2 jruoho ******************************************************************************/ 102 1.1.1.2.8.2 jruoho 103 1.1.1.2.8.2 jruoho ACPI_STATUS 104 1.1.1.2.8.2 jruoho AcpiEvInstallRegionHandlers ( 105 1.1.1.2.8.2 jruoho void) 106 1.1.1.2.8.2 jruoho { 107 1.1.1.2.8.2 jruoho ACPI_STATUS Status; 108 1.1.1.2.8.2 jruoho UINT32 i; 109 1.1.1.2.8.2 jruoho 110 1.1.1.2.8.2 jruoho 111 1.1.1.2.8.2 jruoho ACPI_FUNCTION_TRACE (EvInstallRegionHandlers); 112 1.1.1.2.8.2 jruoho 113 1.1.1.2.8.2 jruoho 114 1.1.1.2.8.2 jruoho Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); 115 1.1.1.2.8.2 jruoho if (ACPI_FAILURE (Status)) 116 1.1.1.2.8.2 jruoho { 117 1.1.1.2.8.2 jruoho return_ACPI_STATUS (Status); 118 1.1.1.2.8.2 jruoho } 119 1.1.1.2.8.2 jruoho 120 1.1.1.2.8.2 jruoho /* 121 1.1.1.2.8.2 jruoho * All address spaces (PCI Config, EC, SMBus) are scope dependent and 122 1.1.1.2.8.2 jruoho * registration must occur for a specific device. 123 1.1.1.2.8.2 jruoho * 124 1.1.1.2.8.2 jruoho * In the case of the system memory and IO address spaces there is 125 1.1.1.2.8.2 jruoho * currently no device associated with the address space. For these we 126 1.1.1.2.8.2 jruoho * use the root. 127 1.1.1.2.8.2 jruoho * 128 1.1.1.2.8.2 jruoho * We install the default PCI config space handler at the root so that 129 1.1.1.2.8.2 jruoho * this space is immediately available even though the we have not 130 1.1.1.2.8.2 jruoho * enumerated all the PCI Root Buses yet. This is to conform to the ACPI 131 1.1.1.2.8.2 jruoho * specification which states that the PCI config space must be always 132 1.1.1.2.8.2 jruoho * available -- even though we are nowhere near ready to find the PCI root 133 1.1.1.2.8.2 jruoho * buses at this point. 134 1.1.1.2.8.2 jruoho * 135 1.1.1.2.8.2 jruoho * NOTE: We ignore AE_ALREADY_EXISTS because this means that a handler 136 1.1.1.2.8.2 jruoho * has already been installed (via AcpiInstallAddressSpaceHandler). 137 1.1.1.2.8.2 jruoho * Similar for AE_SAME_HANDLER. 138 1.1.1.2.8.2 jruoho */ 139 1.1.1.2.8.2 jruoho for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) 140 1.1.1.2.8.2 jruoho { 141 1.1.1.2.8.2 jruoho Status = AcpiEvInstallSpaceHandler (AcpiGbl_RootNode, 142 1.1.1.2.8.2 jruoho AcpiGbl_DefaultAddressSpaces[i], 143 1.1.1.2.8.2 jruoho ACPI_DEFAULT_HANDLER, NULL, NULL); 144 1.1.1.2.8.2 jruoho switch (Status) 145 1.1.1.2.8.2 jruoho { 146 1.1.1.2.8.2 jruoho case AE_OK: 147 1.1.1.2.8.2 jruoho case AE_SAME_HANDLER: 148 1.1.1.2.8.2 jruoho case AE_ALREADY_EXISTS: 149 1.1.1.2.8.2 jruoho 150 1.1.1.2.8.2 jruoho /* These exceptions are all OK */ 151 1.1.1.2.8.2 jruoho 152 1.1.1.2.8.2 jruoho Status = AE_OK; 153 1.1.1.2.8.2 jruoho break; 154 1.1.1.2.8.2 jruoho 155 1.1.1.2.8.2 jruoho default: 156 1.1.1.2.8.2 jruoho 157 1.1.1.2.8.2 jruoho goto UnlockAndExit; 158 1.1.1.2.8.2 jruoho } 159 1.1.1.2.8.2 jruoho } 160 1.1.1.2.8.2 jruoho 161 1.1.1.2.8.2 jruoho UnlockAndExit: 162 1.1.1.2.8.2 jruoho (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); 163 1.1.1.2.8.2 jruoho return_ACPI_STATUS (Status); 164 1.1.1.2.8.2 jruoho } 165 1.1.1.2.8.2 jruoho 166 1.1.1.2.8.2 jruoho 167 1.1.1.2.8.2 jruoho /******************************************************************************* 168 1.1.1.2.8.2 jruoho * 169 1.1.1.2.8.2 jruoho * FUNCTION: AcpiEvHasDefaultHandler 170 1.1.1.2.8.2 jruoho * 171 1.1.1.2.8.2 jruoho * PARAMETERS: Node - Namespace node for the device 172 1.1.1.2.8.2 jruoho * SpaceId - The address space ID 173 1.1.1.2.8.2 jruoho * 174 1.1.1.2.8.2 jruoho * RETURN: TRUE if default handler is installed, FALSE otherwise 175 1.1.1.2.8.2 jruoho * 176 1.1.1.2.8.2 jruoho * DESCRIPTION: Check if the default handler is installed for the requested 177 1.1.1.2.8.2 jruoho * space ID. 178 1.1.1.2.8.2 jruoho * 179 1.1.1.2.8.2 jruoho ******************************************************************************/ 180 1.1.1.2.8.2 jruoho 181 1.1.1.2.8.2 jruoho static BOOLEAN 182 1.1.1.2.8.2 jruoho AcpiEvHasDefaultHandler ( 183 1.1.1.2.8.2 jruoho ACPI_NAMESPACE_NODE *Node, 184 1.1.1.2.8.2 jruoho ACPI_ADR_SPACE_TYPE SpaceId) 185 1.1.1.2.8.2 jruoho { 186 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *ObjDesc; 187 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *HandlerObj; 188 1.1.1.2.8.2 jruoho 189 1.1.1.2.8.2 jruoho 190 1.1.1.2.8.2 jruoho /* Must have an existing internal object */ 191 1.1.1.2.8.2 jruoho 192 1.1.1.2.8.2 jruoho ObjDesc = AcpiNsGetAttachedObject (Node); 193 1.1.1.2.8.2 jruoho if (ObjDesc) 194 1.1.1.2.8.2 jruoho { 195 1.1.1.2.8.2 jruoho HandlerObj = ObjDesc->Device.Handler; 196 1.1.1.2.8.2 jruoho 197 1.1.1.2.8.2 jruoho /* Walk the linked list of handlers for this object */ 198 1.1.1.2.8.2 jruoho 199 1.1.1.2.8.2 jruoho while (HandlerObj) 200 1.1.1.2.8.2 jruoho { 201 1.1.1.2.8.2 jruoho if (HandlerObj->AddressSpace.SpaceId == SpaceId) 202 1.1.1.2.8.2 jruoho { 203 1.1.1.2.8.2 jruoho if (HandlerObj->AddressSpace.HandlerFlags & 204 1.1.1.2.8.2 jruoho ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) 205 1.1.1.2.8.2 jruoho { 206 1.1.1.2.8.2 jruoho return (TRUE); 207 1.1.1.2.8.2 jruoho } 208 1.1.1.2.8.2 jruoho } 209 1.1.1.2.8.2 jruoho 210 1.1.1.2.8.2 jruoho HandlerObj = HandlerObj->AddressSpace.Next; 211 1.1.1.2.8.2 jruoho } 212 1.1.1.2.8.2 jruoho } 213 1.1.1.2.8.2 jruoho 214 1.1.1.2.8.2 jruoho return (FALSE); 215 1.1.1.2.8.2 jruoho } 216 1.1.1.2.8.2 jruoho 217 1.1.1.2.8.2 jruoho 218 1.1.1.2.8.2 jruoho /******************************************************************************* 219 1.1.1.2.8.2 jruoho * 220 1.1.1.2.8.2 jruoho * FUNCTION: AcpiEvInitializeOpRegions 221 1.1.1.2.8.2 jruoho * 222 1.1.1.2.8.2 jruoho * PARAMETERS: None 223 1.1.1.2.8.2 jruoho * 224 1.1.1.2.8.2 jruoho * RETURN: Status 225 1.1.1.2.8.2 jruoho * 226 1.1.1.2.8.2 jruoho * DESCRIPTION: Execute _REG methods for all Operation Regions that have 227 1.1.1.2.8.2 jruoho * an installed default region handler. 228 1.1.1.2.8.2 jruoho * 229 1.1.1.2.8.2 jruoho ******************************************************************************/ 230 1.1.1.2.8.2 jruoho 231 1.1.1.2.8.2 jruoho ACPI_STATUS 232 1.1.1.2.8.2 jruoho AcpiEvInitializeOpRegions ( 233 1.1.1.2.8.2 jruoho void) 234 1.1.1.2.8.2 jruoho { 235 1.1.1.2.8.2 jruoho ACPI_STATUS Status; 236 1.1.1.2.8.2 jruoho UINT32 i; 237 1.1.1.2.8.2 jruoho 238 1.1.1.2.8.2 jruoho 239 1.1.1.2.8.2 jruoho ACPI_FUNCTION_TRACE (EvInitializeOpRegions); 240 1.1.1.2.8.2 jruoho 241 1.1.1.2.8.2 jruoho 242 1.1.1.2.8.2 jruoho Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); 243 1.1.1.2.8.2 jruoho if (ACPI_FAILURE (Status)) 244 1.1.1.2.8.2 jruoho { 245 1.1.1.2.8.2 jruoho return_ACPI_STATUS (Status); 246 1.1.1.2.8.2 jruoho } 247 1.1.1.2.8.2 jruoho 248 1.1.1.2.8.2 jruoho /* Run the _REG methods for OpRegions in each default address space */ 249 1.1.1.2.8.2 jruoho 250 1.1.1.2.8.2 jruoho for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) 251 1.1.1.2.8.2 jruoho { 252 1.1.1.2.8.2 jruoho /* 253 1.1.1.2.8.2 jruoho * Make sure the installed handler is the DEFAULT handler. If not the 254 1.1.1.2.8.2 jruoho * default, the _REG methods will have already been run (when the 255 1.1.1.2.8.2 jruoho * handler was installed) 256 1.1.1.2.8.2 jruoho */ 257 1.1.1.2.8.2 jruoho if (AcpiEvHasDefaultHandler (AcpiGbl_RootNode, 258 1.1.1.2.8.2 jruoho AcpiGbl_DefaultAddressSpaces[i])) 259 1.1.1.2.8.2 jruoho { 260 1.1.1.2.8.2 jruoho Status = AcpiEvExecuteRegMethods (AcpiGbl_RootNode, 261 1.1.1.2.8.2 jruoho AcpiGbl_DefaultAddressSpaces[i]); 262 1.1.1.2.8.2 jruoho } 263 1.1.1.2.8.2 jruoho } 264 1.1.1.2.8.2 jruoho 265 1.1.1.2.8.2 jruoho AcpiGbl_RegMethodsExecuted = TRUE; 266 1.1.1.2.8.2 jruoho 267 1.1.1.2.8.2 jruoho (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); 268 1.1.1.2.8.2 jruoho return_ACPI_STATUS (Status); 269 1.1.1.2.8.2 jruoho } 270 1.1.1.2.8.2 jruoho 271 1.1.1.2.8.2 jruoho 272 1.1.1.2.8.2 jruoho /******************************************************************************* 273 1.1.1.2.8.2 jruoho * 274 1.1.1.2.8.2 jruoho * FUNCTION: AcpiEvExecuteRegMethod 275 1.1.1.2.8.2 jruoho * 276 1.1.1.2.8.2 jruoho * PARAMETERS: RegionObj - Region object 277 1.1.1.2.8.2 jruoho * Function - Passed to _REG: On (1) or Off (0) 278 1.1.1.2.8.2 jruoho * 279 1.1.1.2.8.2 jruoho * RETURN: Status 280 1.1.1.2.8.2 jruoho * 281 1.1.1.2.8.2 jruoho * DESCRIPTION: Execute _REG method for a region 282 1.1.1.2.8.2 jruoho * 283 1.1.1.2.8.2 jruoho ******************************************************************************/ 284 1.1.1.2.8.2 jruoho 285 1.1.1.2.8.2 jruoho ACPI_STATUS 286 1.1.1.2.8.2 jruoho AcpiEvExecuteRegMethod ( 287 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *RegionObj, 288 1.1.1.2.8.2 jruoho UINT32 Function) 289 1.1.1.2.8.2 jruoho { 290 1.1.1.2.8.2 jruoho ACPI_EVALUATE_INFO *Info; 291 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *Args[3]; 292 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *RegionObj2; 293 1.1.1.2.8.2 jruoho ACPI_STATUS Status; 294 1.1.1.2.8.2 jruoho 295 1.1.1.2.8.2 jruoho 296 1.1.1.2.8.2 jruoho ACPI_FUNCTION_TRACE (EvExecuteRegMethod); 297 1.1.1.2.8.2 jruoho 298 1.1.1.2.8.2 jruoho 299 1.1.1.2.8.2 jruoho RegionObj2 = AcpiNsGetSecondaryObject (RegionObj); 300 1.1.1.2.8.2 jruoho if (!RegionObj2) 301 1.1.1.2.8.2 jruoho { 302 1.1.1.2.8.2 jruoho return_ACPI_STATUS (AE_NOT_EXIST); 303 1.1.1.2.8.2 jruoho } 304 1.1.1.2.8.2 jruoho 305 1.1.1.2.8.2 jruoho if (RegionObj2->Extra.Method_REG == NULL) 306 1.1.1.2.8.2 jruoho { 307 1.1.1.2.8.2 jruoho return_ACPI_STATUS (AE_OK); 308 1.1.1.2.8.2 jruoho } 309 1.1.1.2.8.2 jruoho 310 1.1.1.2.8.2 jruoho /* Allocate and initialize the evaluation information block */ 311 1.1.1.2.8.2 jruoho 312 1.1.1.2.8.2 jruoho Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO)); 313 1.1.1.2.8.2 jruoho if (!Info) 314 1.1.1.2.8.2 jruoho { 315 1.1.1.2.8.2 jruoho return_ACPI_STATUS (AE_NO_MEMORY); 316 1.1.1.2.8.2 jruoho } 317 1.1.1.2.8.2 jruoho 318 1.1.1.2.8.2 jruoho Info->PrefixNode = RegionObj2->Extra.Method_REG; 319 1.1.1.2.8.2 jruoho Info->Pathname = NULL; 320 1.1.1.2.8.2 jruoho Info->Parameters = Args; 321 1.1.1.2.8.2 jruoho Info->Flags = ACPI_IGNORE_RETURN_VALUE; 322 1.1.1.2.8.2 jruoho 323 1.1.1.2.8.2 jruoho /* 324 1.1.1.2.8.2 jruoho * The _REG method has two arguments: 325 1.1.1.2.8.2 jruoho * 326 1.1.1.2.8.2 jruoho * Arg0 - Integer: 327 1.1.1.2.8.2 jruoho * Operation region space ID Same value as RegionObj->Region.SpaceId 328 1.1.1.2.8.2 jruoho * 329 1.1.1.2.8.2 jruoho * Arg1 - Integer: 330 1.1.1.2.8.2 jruoho * connection status 1 for connecting the handler, 0 for disconnecting 331 1.1.1.2.8.2 jruoho * the handler (Passed as a parameter) 332 1.1.1.2.8.2 jruoho */ 333 1.1.1.2.8.2 jruoho Args[0] = AcpiUtCreateIntegerObject ((UINT64) RegionObj->Region.SpaceId); 334 1.1.1.2.8.2 jruoho if (!Args[0]) 335 1.1.1.2.8.2 jruoho { 336 1.1.1.2.8.2 jruoho Status = AE_NO_MEMORY; 337 1.1.1.2.8.2 jruoho goto Cleanup1; 338 1.1.1.2.8.2 jruoho } 339 1.1.1.2.8.2 jruoho 340 1.1.1.2.8.2 jruoho Args[1] = AcpiUtCreateIntegerObject ((UINT64) Function); 341 1.1.1.2.8.2 jruoho if (!Args[1]) 342 1.1.1.2.8.2 jruoho { 343 1.1.1.2.8.2 jruoho Status = AE_NO_MEMORY; 344 1.1.1.2.8.2 jruoho goto Cleanup2; 345 1.1.1.2.8.2 jruoho } 346 1.1.1.2.8.2 jruoho 347 1.1.1.2.8.2 jruoho Args[2] = NULL; /* Terminate list */ 348 1.1.1.2.8.2 jruoho 349 1.1.1.2.8.2 jruoho /* Execute the method, no return value */ 350 1.1.1.2.8.2 jruoho 351 1.1.1.2.8.2 jruoho ACPI_DEBUG_EXEC ( 352 1.1.1.2.8.2 jruoho AcpiUtDisplayInitPathname (ACPI_TYPE_METHOD, Info->PrefixNode, NULL)); 353 1.1.1.2.8.2 jruoho 354 1.1.1.2.8.2 jruoho Status = AcpiNsEvaluate (Info); 355 1.1.1.2.8.2 jruoho AcpiUtRemoveReference (Args[1]); 356 1.1.1.2.8.2 jruoho 357 1.1.1.2.8.2 jruoho Cleanup2: 358 1.1.1.2.8.2 jruoho AcpiUtRemoveReference (Args[0]); 359 1.1.1.2.8.2 jruoho 360 1.1.1.2.8.2 jruoho Cleanup1: 361 1.1.1.2.8.2 jruoho ACPI_FREE (Info); 362 1.1.1.2.8.2 jruoho return_ACPI_STATUS (Status); 363 1.1.1.2.8.2 jruoho } 364 1.1.1.2.8.2 jruoho 365 1.1.1.2.8.2 jruoho 366 1.1.1.2.8.2 jruoho /******************************************************************************* 367 1.1.1.2.8.2 jruoho * 368 1.1.1.2.8.2 jruoho * FUNCTION: AcpiEvAddressSpaceDispatch 369 1.1.1.2.8.2 jruoho * 370 1.1.1.2.8.2 jruoho * PARAMETERS: RegionObj - Internal region object 371 1.1.1.2.8.2 jruoho * Function - Read or Write operation 372 1.1.1.2.8.2 jruoho * RegionOffset - Where in the region to read or write 373 1.1.1.2.8.2 jruoho * BitWidth - Field width in bits (8, 16, 32, or 64) 374 1.1.1.2.8.2 jruoho * Value - Pointer to in or out value, must be 375 1.1.1.2.8.2 jruoho * a full 64-bit integer 376 1.1.1.2.8.2 jruoho * 377 1.1.1.2.8.2 jruoho * RETURN: Status 378 1.1.1.2.8.2 jruoho * 379 1.1.1.2.8.2 jruoho * DESCRIPTION: Dispatch an address space or operation region access to 380 1.1.1.2.8.2 jruoho * a previously installed handler. 381 1.1.1.2.8.2 jruoho * 382 1.1.1.2.8.2 jruoho ******************************************************************************/ 383 1.1.1.2.8.2 jruoho 384 1.1.1.2.8.2 jruoho ACPI_STATUS 385 1.1.1.2.8.2 jruoho AcpiEvAddressSpaceDispatch ( 386 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *RegionObj, 387 1.1.1.2.8.2 jruoho UINT32 Function, 388 1.1.1.2.8.2 jruoho UINT32 RegionOffset, 389 1.1.1.2.8.2 jruoho UINT32 BitWidth, 390 1.1.1.2.8.2 jruoho UINT64 *Value) 391 1.1.1.2.8.2 jruoho { 392 1.1.1.2.8.2 jruoho ACPI_STATUS Status; 393 1.1.1.2.8.2 jruoho ACPI_ADR_SPACE_HANDLER Handler; 394 1.1.1.2.8.2 jruoho ACPI_ADR_SPACE_SETUP RegionSetup; 395 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *HandlerDesc; 396 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *RegionObj2; 397 1.1.1.2.8.2 jruoho void *RegionContext = NULL; 398 1.1.1.2.8.2 jruoho 399 1.1.1.2.8.2 jruoho 400 1.1.1.2.8.2 jruoho ACPI_FUNCTION_TRACE (EvAddressSpaceDispatch); 401 1.1.1.2.8.2 jruoho 402 1.1.1.2.8.2 jruoho 403 1.1.1.2.8.2 jruoho RegionObj2 = AcpiNsGetSecondaryObject (RegionObj); 404 1.1.1.2.8.2 jruoho if (!RegionObj2) 405 1.1.1.2.8.2 jruoho { 406 1.1.1.2.8.2 jruoho return_ACPI_STATUS (AE_NOT_EXIST); 407 1.1.1.2.8.2 jruoho } 408 1.1.1.2.8.2 jruoho 409 1.1.1.2.8.2 jruoho /* Ensure that there is a handler associated with this region */ 410 1.1.1.2.8.2 jruoho 411 1.1.1.2.8.2 jruoho HandlerDesc = RegionObj->Region.Handler; 412 1.1.1.2.8.2 jruoho if (!HandlerDesc) 413 1.1.1.2.8.2 jruoho { 414 1.1.1.2.8.2 jruoho ACPI_ERROR ((AE_INFO, 415 1.1.1.2.8.2 jruoho "No handler for Region [%4.4s] (%p) [%s]", 416 1.1.1.2.8.2 jruoho AcpiUtGetNodeName (RegionObj->Region.Node), 417 1.1.1.2.8.2 jruoho RegionObj, AcpiUtGetRegionName (RegionObj->Region.SpaceId))); 418 1.1.1.2.8.2 jruoho 419 1.1.1.2.8.2 jruoho return_ACPI_STATUS (AE_NOT_EXIST); 420 1.1.1.2.8.2 jruoho } 421 1.1.1.2.8.2 jruoho 422 1.1.1.2.8.2 jruoho /* 423 1.1.1.2.8.2 jruoho * It may be the case that the region has never been initialized. 424 1.1.1.2.8.2 jruoho * Some types of regions require special init code 425 1.1.1.2.8.2 jruoho */ 426 1.1.1.2.8.2 jruoho if (!(RegionObj->Region.Flags & AOPOBJ_SETUP_COMPLETE)) 427 1.1.1.2.8.2 jruoho { 428 1.1.1.2.8.2 jruoho /* This region has not been initialized yet, do it */ 429 1.1.1.2.8.2 jruoho 430 1.1.1.2.8.2 jruoho RegionSetup = HandlerDesc->AddressSpace.Setup; 431 1.1.1.2.8.2 jruoho if (!RegionSetup) 432 1.1.1.2.8.2 jruoho { 433 1.1.1.2.8.2 jruoho /* No initialization routine, exit with error */ 434 1.1.1.2.8.2 jruoho 435 1.1.1.2.8.2 jruoho ACPI_ERROR ((AE_INFO, 436 1.1.1.2.8.2 jruoho "No init routine for region(%p) [%s]", 437 1.1.1.2.8.2 jruoho RegionObj, AcpiUtGetRegionName (RegionObj->Region.SpaceId))); 438 1.1.1.2.8.2 jruoho return_ACPI_STATUS (AE_NOT_EXIST); 439 1.1.1.2.8.2 jruoho } 440 1.1.1.2.8.2 jruoho 441 1.1.1.2.8.2 jruoho /* 442 1.1.1.2.8.2 jruoho * We must exit the interpreter because the region setup will 443 1.1.1.2.8.2 jruoho * potentially execute control methods (for example, the _REG method 444 1.1.1.2.8.2 jruoho * for this region) 445 1.1.1.2.8.2 jruoho */ 446 1.1.1.2.8.2 jruoho AcpiExExitInterpreter (); 447 1.1.1.2.8.2 jruoho 448 1.1.1.2.8.2 jruoho Status = RegionSetup (RegionObj, ACPI_REGION_ACTIVATE, 449 1.1.1.2.8.2 jruoho HandlerDesc->AddressSpace.Context, &RegionContext); 450 1.1.1.2.8.2 jruoho 451 1.1.1.2.8.2 jruoho /* Re-enter the interpreter */ 452 1.1.1.2.8.2 jruoho 453 1.1.1.2.8.2 jruoho AcpiExEnterInterpreter (); 454 1.1.1.2.8.2 jruoho 455 1.1.1.2.8.2 jruoho /* Check for failure of the Region Setup */ 456 1.1.1.2.8.2 jruoho 457 1.1.1.2.8.2 jruoho if (ACPI_FAILURE (Status)) 458 1.1.1.2.8.2 jruoho { 459 1.1.1.2.8.2 jruoho ACPI_EXCEPTION ((AE_INFO, Status, 460 1.1.1.2.8.2 jruoho "During region initialization: [%s]", 461 1.1.1.2.8.2 jruoho AcpiUtGetRegionName (RegionObj->Region.SpaceId))); 462 1.1.1.2.8.2 jruoho return_ACPI_STATUS (Status); 463 1.1.1.2.8.2 jruoho } 464 1.1.1.2.8.2 jruoho 465 1.1.1.2.8.2 jruoho /* Region initialization may have been completed by RegionSetup */ 466 1.1.1.2.8.2 jruoho 467 1.1.1.2.8.2 jruoho if (!(RegionObj->Region.Flags & AOPOBJ_SETUP_COMPLETE)) 468 1.1.1.2.8.2 jruoho { 469 1.1.1.2.8.2 jruoho RegionObj->Region.Flags |= AOPOBJ_SETUP_COMPLETE; 470 1.1.1.2.8.2 jruoho 471 1.1.1.2.8.2 jruoho if (RegionObj2->Extra.RegionContext) 472 1.1.1.2.8.2 jruoho { 473 1.1.1.2.8.2 jruoho /* The handler for this region was already installed */ 474 1.1.1.2.8.2 jruoho 475 1.1.1.2.8.2 jruoho ACPI_FREE (RegionContext); 476 1.1.1.2.8.2 jruoho } 477 1.1.1.2.8.2 jruoho else 478 1.1.1.2.8.2 jruoho { 479 1.1.1.2.8.2 jruoho /* 480 1.1.1.2.8.2 jruoho * Save the returned context for use in all accesses to 481 1.1.1.2.8.2 jruoho * this particular region 482 1.1.1.2.8.2 jruoho */ 483 1.1.1.2.8.2 jruoho RegionObj2->Extra.RegionContext = RegionContext; 484 1.1.1.2.8.2 jruoho } 485 1.1.1.2.8.2 jruoho } 486 1.1.1.2.8.2 jruoho } 487 1.1.1.2.8.2 jruoho 488 1.1.1.2.8.2 jruoho /* We have everything we need, we can invoke the address space handler */ 489 1.1.1.2.8.2 jruoho 490 1.1.1.2.8.2 jruoho Handler = HandlerDesc->AddressSpace.Handler; 491 1.1.1.2.8.2 jruoho 492 1.1.1.2.8.2 jruoho ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, 493 1.1.1.2.8.2 jruoho "Handler %p (@%p) Address %8.8X%8.8X [%s]\n", 494 1.1.1.2.8.2 jruoho &RegionObj->Region.Handler->AddressSpace, Handler, 495 1.1.1.2.8.2 jruoho ACPI_FORMAT_NATIVE_UINT (RegionObj->Region.Address + RegionOffset), 496 1.1.1.2.8.2 jruoho AcpiUtGetRegionName (RegionObj->Region.SpaceId))); 497 1.1.1.2.8.2 jruoho 498 1.1.1.2.8.2 jruoho if (!(HandlerDesc->AddressSpace.HandlerFlags & 499 1.1.1.2.8.2 jruoho ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) 500 1.1.1.2.8.2 jruoho { 501 1.1.1.2.8.2 jruoho /* 502 1.1.1.2.8.2 jruoho * For handlers other than the default (supplied) handlers, we must 503 1.1.1.2.8.2 jruoho * exit the interpreter because the handler *might* block -- we don't 504 1.1.1.2.8.2 jruoho * know what it will do, so we can't hold the lock on the intepreter. 505 1.1.1.2.8.2 jruoho */ 506 1.1.1.2.8.2 jruoho AcpiExExitInterpreter(); 507 1.1.1.2.8.2 jruoho } 508 1.1.1.2.8.2 jruoho 509 1.1.1.2.8.2 jruoho /* Call the handler */ 510 1.1.1.2.8.2 jruoho 511 1.1.1.2.8.2 jruoho Status = Handler (Function, 512 1.1.1.2.8.2 jruoho (RegionObj->Region.Address + RegionOffset), BitWidth, Value, 513 1.1.1.2.8.2 jruoho HandlerDesc->AddressSpace.Context, RegionObj2->Extra.RegionContext); 514 1.1.1.2.8.2 jruoho 515 1.1.1.2.8.2 jruoho if (ACPI_FAILURE (Status)) 516 1.1.1.2.8.2 jruoho { 517 1.1.1.2.8.2 jruoho ACPI_EXCEPTION ((AE_INFO, Status, "Returned by Handler for [%s]", 518 1.1.1.2.8.2 jruoho AcpiUtGetRegionName (RegionObj->Region.SpaceId))); 519 1.1.1.2.8.2 jruoho } 520 1.1.1.2.8.2 jruoho 521 1.1.1.2.8.2 jruoho if (!(HandlerDesc->AddressSpace.HandlerFlags & 522 1.1.1.2.8.2 jruoho ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) 523 1.1.1.2.8.2 jruoho { 524 1.1.1.2.8.2 jruoho /* 525 1.1.1.2.8.2 jruoho * We just returned from a non-default handler, we must re-enter the 526 1.1.1.2.8.2 jruoho * interpreter 527 1.1.1.2.8.2 jruoho */ 528 1.1.1.2.8.2 jruoho AcpiExEnterInterpreter (); 529 1.1.1.2.8.2 jruoho } 530 1.1.1.2.8.2 jruoho 531 1.1.1.2.8.2 jruoho return_ACPI_STATUS (Status); 532 1.1.1.2.8.2 jruoho } 533 1.1.1.2.8.2 jruoho 534 1.1.1.2.8.2 jruoho 535 1.1.1.2.8.2 jruoho /******************************************************************************* 536 1.1.1.2.8.2 jruoho * 537 1.1.1.2.8.2 jruoho * FUNCTION: AcpiEvDetachRegion 538 1.1.1.2.8.2 jruoho * 539 1.1.1.2.8.2 jruoho * PARAMETERS: RegionObj - Region Object 540 1.1.1.2.8.2 jruoho * AcpiNsIsLocked - Namespace Region Already Locked? 541 1.1.1.2.8.2 jruoho * 542 1.1.1.2.8.2 jruoho * RETURN: None 543 1.1.1.2.8.2 jruoho * 544 1.1.1.2.8.2 jruoho * DESCRIPTION: Break the association between the handler and the region 545 1.1.1.2.8.2 jruoho * this is a two way association. 546 1.1.1.2.8.2 jruoho * 547 1.1.1.2.8.2 jruoho ******************************************************************************/ 548 1.1.1.2.8.2 jruoho 549 1.1.1.2.8.2 jruoho void 550 1.1.1.2.8.2 jruoho AcpiEvDetachRegion( 551 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *RegionObj, 552 1.1.1.2.8.2 jruoho BOOLEAN AcpiNsIsLocked) 553 1.1.1.2.8.2 jruoho { 554 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *HandlerObj; 555 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *ObjDesc; 556 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT **LastObjPtr; 557 1.1.1.2.8.2 jruoho ACPI_ADR_SPACE_SETUP RegionSetup; 558 1.1.1.2.8.2 jruoho void **RegionContext; 559 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *RegionObj2; 560 1.1.1.2.8.2 jruoho ACPI_STATUS Status; 561 1.1.1.2.8.2 jruoho 562 1.1.1.2.8.2 jruoho 563 1.1.1.2.8.2 jruoho ACPI_FUNCTION_TRACE (EvDetachRegion); 564 1.1.1.2.8.2 jruoho 565 1.1.1.2.8.2 jruoho 566 1.1.1.2.8.2 jruoho RegionObj2 = AcpiNsGetSecondaryObject (RegionObj); 567 1.1.1.2.8.2 jruoho if (!RegionObj2) 568 1.1.1.2.8.2 jruoho { 569 1.1.1.2.8.2 jruoho return_VOID; 570 1.1.1.2.8.2 jruoho } 571 1.1.1.2.8.2 jruoho RegionContext = &RegionObj2->Extra.RegionContext; 572 1.1.1.2.8.2 jruoho 573 1.1.1.2.8.2 jruoho /* Get the address handler from the region object */ 574 1.1.1.2.8.2 jruoho 575 1.1.1.2.8.2 jruoho HandlerObj = RegionObj->Region.Handler; 576 1.1.1.2.8.2 jruoho if (!HandlerObj) 577 1.1.1.2.8.2 jruoho { 578 1.1.1.2.8.2 jruoho /* This region has no handler, all done */ 579 1.1.1.2.8.2 jruoho 580 1.1.1.2.8.2 jruoho return_VOID; 581 1.1.1.2.8.2 jruoho } 582 1.1.1.2.8.2 jruoho 583 1.1.1.2.8.2 jruoho /* Find this region in the handler's list */ 584 1.1.1.2.8.2 jruoho 585 1.1.1.2.8.2 jruoho ObjDesc = HandlerObj->AddressSpace.RegionList; 586 1.1.1.2.8.2 jruoho LastObjPtr = &HandlerObj->AddressSpace.RegionList; 587 1.1.1.2.8.2 jruoho 588 1.1.1.2.8.2 jruoho while (ObjDesc) 589 1.1.1.2.8.2 jruoho { 590 1.1.1.2.8.2 jruoho /* Is this the correct Region? */ 591 1.1.1.2.8.2 jruoho 592 1.1.1.2.8.2 jruoho if (ObjDesc == RegionObj) 593 1.1.1.2.8.2 jruoho { 594 1.1.1.2.8.2 jruoho ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, 595 1.1.1.2.8.2 jruoho "Removing Region %p from address handler %p\n", 596 1.1.1.2.8.2 jruoho RegionObj, HandlerObj)); 597 1.1.1.2.8.2 jruoho 598 1.1.1.2.8.2 jruoho /* This is it, remove it from the handler's list */ 599 1.1.1.2.8.2 jruoho 600 1.1.1.2.8.2 jruoho *LastObjPtr = ObjDesc->Region.Next; 601 1.1.1.2.8.2 jruoho ObjDesc->Region.Next = NULL; /* Must clear field */ 602 1.1.1.2.8.2 jruoho 603 1.1.1.2.8.2 jruoho if (AcpiNsIsLocked) 604 1.1.1.2.8.2 jruoho { 605 1.1.1.2.8.2 jruoho Status = AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); 606 1.1.1.2.8.2 jruoho if (ACPI_FAILURE (Status)) 607 1.1.1.2.8.2 jruoho { 608 1.1.1.2.8.2 jruoho return_VOID; 609 1.1.1.2.8.2 jruoho } 610 1.1.1.2.8.2 jruoho } 611 1.1.1.2.8.2 jruoho 612 1.1.1.2.8.2 jruoho /* Now stop region accesses by executing the _REG method */ 613 1.1.1.2.8.2 jruoho 614 1.1.1.2.8.2 jruoho Status = AcpiEvExecuteRegMethod (RegionObj, 0); 615 1.1.1.2.8.2 jruoho if (ACPI_FAILURE (Status)) 616 1.1.1.2.8.2 jruoho { 617 1.1.1.2.8.2 jruoho ACPI_EXCEPTION ((AE_INFO, Status, "from region _REG, [%s]", 618 1.1.1.2.8.2 jruoho AcpiUtGetRegionName (RegionObj->Region.SpaceId))); 619 1.1.1.2.8.2 jruoho } 620 1.1.1.2.8.2 jruoho 621 1.1.1.2.8.2 jruoho if (AcpiNsIsLocked) 622 1.1.1.2.8.2 jruoho { 623 1.1.1.2.8.2 jruoho Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); 624 1.1.1.2.8.2 jruoho if (ACPI_FAILURE (Status)) 625 1.1.1.2.8.2 jruoho { 626 1.1.1.2.8.2 jruoho return_VOID; 627 1.1.1.2.8.2 jruoho } 628 1.1.1.2.8.2 jruoho } 629 1.1.1.2.8.2 jruoho 630 1.1.1.2.8.2 jruoho /* 631 1.1.1.2.8.2 jruoho * If the region has been activated, call the setup handler with 632 1.1.1.2.8.2 jruoho * the deactivate notification 633 1.1.1.2.8.2 jruoho */ 634 1.1.1.2.8.2 jruoho if (RegionObj->Region.Flags & AOPOBJ_SETUP_COMPLETE) 635 1.1.1.2.8.2 jruoho { 636 1.1.1.2.8.2 jruoho RegionSetup = HandlerObj->AddressSpace.Setup; 637 1.1.1.2.8.2 jruoho Status = RegionSetup (RegionObj, ACPI_REGION_DEACTIVATE, 638 1.1.1.2.8.2 jruoho HandlerObj->AddressSpace.Context, RegionContext); 639 1.1.1.2.8.2 jruoho 640 1.1.1.2.8.2 jruoho /* Init routine may fail, Just ignore errors */ 641 1.1.1.2.8.2 jruoho 642 1.1.1.2.8.2 jruoho if (ACPI_FAILURE (Status)) 643 1.1.1.2.8.2 jruoho { 644 1.1.1.2.8.2 jruoho ACPI_EXCEPTION ((AE_INFO, Status, 645 1.1.1.2.8.2 jruoho "from region handler - deactivate, [%s]", 646 1.1.1.2.8.2 jruoho AcpiUtGetRegionName (RegionObj->Region.SpaceId))); 647 1.1.1.2.8.2 jruoho } 648 1.1.1.2.8.2 jruoho 649 1.1.1.2.8.2 jruoho RegionObj->Region.Flags &= ~(AOPOBJ_SETUP_COMPLETE); 650 1.1.1.2.8.2 jruoho } 651 1.1.1.2.8.2 jruoho 652 1.1.1.2.8.2 jruoho /* 653 1.1.1.2.8.2 jruoho * Remove handler reference in the region 654 1.1.1.2.8.2 jruoho * 655 1.1.1.2.8.2 jruoho * NOTE: this doesn't mean that the region goes away, the region 656 1.1.1.2.8.2 jruoho * is just inaccessible as indicated to the _REG method 657 1.1.1.2.8.2 jruoho * 658 1.1.1.2.8.2 jruoho * If the region is on the handler's list, this must be the 659 1.1.1.2.8.2 jruoho * region's handler 660 1.1.1.2.8.2 jruoho */ 661 1.1.1.2.8.2 jruoho RegionObj->Region.Handler = NULL; 662 1.1.1.2.8.2 jruoho AcpiUtRemoveReference (HandlerObj); 663 1.1.1.2.8.2 jruoho 664 1.1.1.2.8.2 jruoho return_VOID; 665 1.1.1.2.8.2 jruoho } 666 1.1.1.2.8.2 jruoho 667 1.1.1.2.8.2 jruoho /* Walk the linked list of handlers */ 668 1.1.1.2.8.2 jruoho 669 1.1.1.2.8.2 jruoho LastObjPtr = &ObjDesc->Region.Next; 670 1.1.1.2.8.2 jruoho ObjDesc = ObjDesc->Region.Next; 671 1.1.1.2.8.2 jruoho } 672 1.1.1.2.8.2 jruoho 673 1.1.1.2.8.2 jruoho /* If we get here, the region was not in the handler's region list */ 674 1.1.1.2.8.2 jruoho 675 1.1.1.2.8.2 jruoho ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, 676 1.1.1.2.8.2 jruoho "Cannot remove region %p from address handler %p\n", 677 1.1.1.2.8.2 jruoho RegionObj, HandlerObj)); 678 1.1.1.2.8.2 jruoho 679 1.1.1.2.8.2 jruoho return_VOID; 680 1.1.1.2.8.2 jruoho } 681 1.1.1.2.8.2 jruoho 682 1.1.1.2.8.2 jruoho 683 1.1.1.2.8.2 jruoho /******************************************************************************* 684 1.1.1.2.8.2 jruoho * 685 1.1.1.2.8.2 jruoho * FUNCTION: AcpiEvAttachRegion 686 1.1.1.2.8.2 jruoho * 687 1.1.1.2.8.2 jruoho * PARAMETERS: HandlerObj - Handler Object 688 1.1.1.2.8.2 jruoho * RegionObj - Region Object 689 1.1.1.2.8.2 jruoho * AcpiNsIsLocked - Namespace Region Already Locked? 690 1.1.1.2.8.2 jruoho * 691 1.1.1.2.8.2 jruoho * RETURN: None 692 1.1.1.2.8.2 jruoho * 693 1.1.1.2.8.2 jruoho * DESCRIPTION: Create the association between the handler and the region 694 1.1.1.2.8.2 jruoho * this is a two way association. 695 1.1.1.2.8.2 jruoho * 696 1.1.1.2.8.2 jruoho ******************************************************************************/ 697 1.1.1.2.8.2 jruoho 698 1.1.1.2.8.2 jruoho ACPI_STATUS 699 1.1.1.2.8.2 jruoho AcpiEvAttachRegion ( 700 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *HandlerObj, 701 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *RegionObj, 702 1.1.1.2.8.2 jruoho BOOLEAN AcpiNsIsLocked) 703 1.1.1.2.8.2 jruoho { 704 1.1.1.2.8.2 jruoho 705 1.1.1.2.8.2 jruoho ACPI_FUNCTION_TRACE (EvAttachRegion); 706 1.1.1.2.8.2 jruoho 707 1.1.1.2.8.2 jruoho 708 1.1.1.2.8.2 jruoho ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, 709 1.1.1.2.8.2 jruoho "Adding Region [%4.4s] %p to address handler %p [%s]\n", 710 1.1.1.2.8.2 jruoho AcpiUtGetNodeName (RegionObj->Region.Node), 711 1.1.1.2.8.2 jruoho RegionObj, HandlerObj, 712 1.1.1.2.8.2 jruoho AcpiUtGetRegionName (RegionObj->Region.SpaceId))); 713 1.1.1.2.8.2 jruoho 714 1.1.1.2.8.2 jruoho /* Link this region to the front of the handler's list */ 715 1.1.1.2.8.2 jruoho 716 1.1.1.2.8.2 jruoho RegionObj->Region.Next = HandlerObj->AddressSpace.RegionList; 717 1.1.1.2.8.2 jruoho HandlerObj->AddressSpace.RegionList = RegionObj; 718 1.1.1.2.8.2 jruoho 719 1.1.1.2.8.2 jruoho /* Install the region's handler */ 720 1.1.1.2.8.2 jruoho 721 1.1.1.2.8.2 jruoho if (RegionObj->Region.Handler) 722 1.1.1.2.8.2 jruoho { 723 1.1.1.2.8.2 jruoho return_ACPI_STATUS (AE_ALREADY_EXISTS); 724 1.1.1.2.8.2 jruoho } 725 1.1.1.2.8.2 jruoho 726 1.1.1.2.8.2 jruoho RegionObj->Region.Handler = HandlerObj; 727 1.1.1.2.8.2 jruoho AcpiUtAddReference (HandlerObj); 728 1.1.1.2.8.2 jruoho 729 1.1.1.2.8.2 jruoho return_ACPI_STATUS (AE_OK); 730 1.1.1.2.8.2 jruoho } 731 1.1.1.2.8.2 jruoho 732 1.1.1.2.8.2 jruoho 733 1.1.1.2.8.2 jruoho /******************************************************************************* 734 1.1.1.2.8.2 jruoho * 735 1.1.1.2.8.2 jruoho * FUNCTION: AcpiEvInstallHandler 736 1.1.1.2.8.2 jruoho * 737 1.1.1.2.8.2 jruoho * PARAMETERS: WalkNamespace callback 738 1.1.1.2.8.2 jruoho * 739 1.1.1.2.8.2 jruoho * DESCRIPTION: This routine installs an address handler into objects that are 740 1.1.1.2.8.2 jruoho * of type Region or Device. 741 1.1.1.2.8.2 jruoho * 742 1.1.1.2.8.2 jruoho * If the Object is a Device, and the device has a handler of 743 1.1.1.2.8.2 jruoho * the same type then the search is terminated in that branch. 744 1.1.1.2.8.2 jruoho * 745 1.1.1.2.8.2 jruoho * This is because the existing handler is closer in proximity 746 1.1.1.2.8.2 jruoho * to any more regions than the one we are trying to install. 747 1.1.1.2.8.2 jruoho * 748 1.1.1.2.8.2 jruoho ******************************************************************************/ 749 1.1.1.2.8.2 jruoho 750 1.1.1.2.8.2 jruoho static ACPI_STATUS 751 1.1.1.2.8.2 jruoho AcpiEvInstallHandler ( 752 1.1.1.2.8.2 jruoho ACPI_HANDLE ObjHandle, 753 1.1.1.2.8.2 jruoho UINT32 Level, 754 1.1.1.2.8.2 jruoho void *Context, 755 1.1.1.2.8.2 jruoho void **ReturnValue) 756 1.1.1.2.8.2 jruoho { 757 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *HandlerObj; 758 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *NextHandlerObj; 759 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *ObjDesc; 760 1.1.1.2.8.2 jruoho ACPI_NAMESPACE_NODE *Node; 761 1.1.1.2.8.2 jruoho ACPI_STATUS Status; 762 1.1.1.2.8.2 jruoho 763 1.1.1.2.8.2 jruoho 764 1.1.1.2.8.2 jruoho ACPI_FUNCTION_NAME (EvInstallHandler); 765 1.1.1.2.8.2 jruoho 766 1.1.1.2.8.2 jruoho 767 1.1.1.2.8.2 jruoho HandlerObj = (ACPI_OPERAND_OBJECT *) Context; 768 1.1.1.2.8.2 jruoho 769 1.1.1.2.8.2 jruoho /* Parameter validation */ 770 1.1.1.2.8.2 jruoho 771 1.1.1.2.8.2 jruoho if (!HandlerObj) 772 1.1.1.2.8.2 jruoho { 773 1.1.1.2.8.2 jruoho return (AE_OK); 774 1.1.1.2.8.2 jruoho } 775 1.1.1.2.8.2 jruoho 776 1.1.1.2.8.2 jruoho /* Convert and validate the device handle */ 777 1.1.1.2.8.2 jruoho 778 1.1.1.2.8.2 jruoho Node = AcpiNsValidateHandle (ObjHandle); 779 1.1.1.2.8.2 jruoho if (!Node) 780 1.1.1.2.8.2 jruoho { 781 1.1.1.2.8.2 jruoho return (AE_BAD_PARAMETER); 782 1.1.1.2.8.2 jruoho } 783 1.1.1.2.8.2 jruoho 784 1.1.1.2.8.2 jruoho /* 785 1.1.1.2.8.2 jruoho * We only care about regions and objects that are allowed to have 786 1.1.1.2.8.2 jruoho * address space handlers 787 1.1.1.2.8.2 jruoho */ 788 1.1.1.2.8.2 jruoho if ((Node->Type != ACPI_TYPE_DEVICE) && 789 1.1.1.2.8.2 jruoho (Node->Type != ACPI_TYPE_REGION) && 790 1.1.1.2.8.2 jruoho (Node != AcpiGbl_RootNode)) 791 1.1.1.2.8.2 jruoho { 792 1.1.1.2.8.2 jruoho return (AE_OK); 793 1.1.1.2.8.2 jruoho } 794 1.1.1.2.8.2 jruoho 795 1.1.1.2.8.2 jruoho /* Check for an existing internal object */ 796 1.1.1.2.8.2 jruoho 797 1.1.1.2.8.2 jruoho ObjDesc = AcpiNsGetAttachedObject (Node); 798 1.1.1.2.8.2 jruoho if (!ObjDesc) 799 1.1.1.2.8.2 jruoho { 800 1.1.1.2.8.2 jruoho /* No object, just exit */ 801 1.1.1.2.8.2 jruoho 802 1.1.1.2.8.2 jruoho return (AE_OK); 803 1.1.1.2.8.2 jruoho } 804 1.1.1.2.8.2 jruoho 805 1.1.1.2.8.2 jruoho /* Devices are handled different than regions */ 806 1.1.1.2.8.2 jruoho 807 1.1.1.2.8.2 jruoho if (ObjDesc->Common.Type == ACPI_TYPE_DEVICE) 808 1.1.1.2.8.2 jruoho { 809 1.1.1.2.8.2 jruoho /* Check if this Device already has a handler for this address space */ 810 1.1.1.2.8.2 jruoho 811 1.1.1.2.8.2 jruoho NextHandlerObj = ObjDesc->Device.Handler; 812 1.1.1.2.8.2 jruoho while (NextHandlerObj) 813 1.1.1.2.8.2 jruoho { 814 1.1.1.2.8.2 jruoho /* Found a handler, is it for the same address space? */ 815 1.1.1.2.8.2 jruoho 816 1.1.1.2.8.2 jruoho if (NextHandlerObj->AddressSpace.SpaceId == 817 1.1.1.2.8.2 jruoho HandlerObj->AddressSpace.SpaceId) 818 1.1.1.2.8.2 jruoho { 819 1.1.1.2.8.2 jruoho ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, 820 1.1.1.2.8.2 jruoho "Found handler for region [%s] in device %p(%p) " 821 1.1.1.2.8.2 jruoho "handler %p\n", 822 1.1.1.2.8.2 jruoho AcpiUtGetRegionName (HandlerObj->AddressSpace.SpaceId), 823 1.1.1.2.8.2 jruoho ObjDesc, NextHandlerObj, HandlerObj)); 824 1.1.1.2.8.2 jruoho 825 1.1.1.2.8.2 jruoho /* 826 1.1.1.2.8.2 jruoho * Since the object we found it on was a device, then it 827 1.1.1.2.8.2 jruoho * means that someone has already installed a handler for 828 1.1.1.2.8.2 jruoho * the branch of the namespace from this device on. Just 829 1.1.1.2.8.2 jruoho * bail out telling the walk routine to not traverse this 830 1.1.1.2.8.2 jruoho * branch. This preserves the scoping rule for handlers. 831 1.1.1.2.8.2 jruoho */ 832 1.1.1.2.8.2 jruoho return (AE_CTRL_DEPTH); 833 1.1.1.2.8.2 jruoho } 834 1.1.1.2.8.2 jruoho 835 1.1.1.2.8.2 jruoho /* Walk the linked list of handlers attached to this device */ 836 1.1.1.2.8.2 jruoho 837 1.1.1.2.8.2 jruoho NextHandlerObj = NextHandlerObj->AddressSpace.Next; 838 1.1.1.2.8.2 jruoho } 839 1.1.1.2.8.2 jruoho 840 1.1.1.2.8.2 jruoho /* 841 1.1.1.2.8.2 jruoho * As long as the device didn't have a handler for this space we 842 1.1.1.2.8.2 jruoho * don't care about it. We just ignore it and proceed. 843 1.1.1.2.8.2 jruoho */ 844 1.1.1.2.8.2 jruoho return (AE_OK); 845 1.1.1.2.8.2 jruoho } 846 1.1.1.2.8.2 jruoho 847 1.1.1.2.8.2 jruoho /* Object is a Region */ 848 1.1.1.2.8.2 jruoho 849 1.1.1.2.8.2 jruoho if (ObjDesc->Region.SpaceId != HandlerObj->AddressSpace.SpaceId) 850 1.1.1.2.8.2 jruoho { 851 1.1.1.2.8.2 jruoho /* This region is for a different address space, just ignore it */ 852 1.1.1.2.8.2 jruoho 853 1.1.1.2.8.2 jruoho return (AE_OK); 854 1.1.1.2.8.2 jruoho } 855 1.1.1.2.8.2 jruoho 856 1.1.1.2.8.2 jruoho /* 857 1.1.1.2.8.2 jruoho * Now we have a region and it is for the handler's address space type. 858 1.1.1.2.8.2 jruoho * 859 1.1.1.2.8.2 jruoho * First disconnect region for any previous handler (if any) 860 1.1.1.2.8.2 jruoho */ 861 1.1.1.2.8.2 jruoho AcpiEvDetachRegion (ObjDesc, FALSE); 862 1.1.1.2.8.2 jruoho 863 1.1.1.2.8.2 jruoho /* Connect the region to the new handler */ 864 1.1.1.2.8.2 jruoho 865 1.1.1.2.8.2 jruoho Status = AcpiEvAttachRegion (HandlerObj, ObjDesc, FALSE); 866 1.1.1.2.8.2 jruoho return (Status); 867 1.1.1.2.8.2 jruoho } 868 1.1.1.2.8.2 jruoho 869 1.1.1.2.8.2 jruoho 870 1.1.1.2.8.2 jruoho /******************************************************************************* 871 1.1.1.2.8.2 jruoho * 872 1.1.1.2.8.2 jruoho * FUNCTION: AcpiEvInstallSpaceHandler 873 1.1.1.2.8.2 jruoho * 874 1.1.1.2.8.2 jruoho * PARAMETERS: Node - Namespace node for the device 875 1.1.1.2.8.2 jruoho * SpaceId - The address space ID 876 1.1.1.2.8.2 jruoho * Handler - Address of the handler 877 1.1.1.2.8.2 jruoho * Setup - Address of the setup function 878 1.1.1.2.8.2 jruoho * Context - Value passed to the handler on each access 879 1.1.1.2.8.2 jruoho * 880 1.1.1.2.8.2 jruoho * RETURN: Status 881 1.1.1.2.8.2 jruoho * 882 1.1.1.2.8.2 jruoho * DESCRIPTION: Install a handler for all OpRegions of a given SpaceId. 883 1.1.1.2.8.2 jruoho * Assumes namespace is locked 884 1.1.1.2.8.2 jruoho * 885 1.1.1.2.8.2 jruoho ******************************************************************************/ 886 1.1.1.2.8.2 jruoho 887 1.1.1.2.8.2 jruoho ACPI_STATUS 888 1.1.1.2.8.2 jruoho AcpiEvInstallSpaceHandler ( 889 1.1.1.2.8.2 jruoho ACPI_NAMESPACE_NODE *Node, 890 1.1.1.2.8.2 jruoho ACPI_ADR_SPACE_TYPE SpaceId, 891 1.1.1.2.8.2 jruoho ACPI_ADR_SPACE_HANDLER Handler, 892 1.1.1.2.8.2 jruoho ACPI_ADR_SPACE_SETUP Setup, 893 1.1.1.2.8.2 jruoho void *Context) 894 1.1.1.2.8.2 jruoho { 895 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *ObjDesc; 896 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *HandlerObj; 897 1.1.1.2.8.2 jruoho ACPI_STATUS Status; 898 1.1.1.2.8.2 jruoho ACPI_OBJECT_TYPE Type; 899 1.1.1.2.8.2 jruoho UINT8 Flags = 0; 900 1.1.1.2.8.2 jruoho 901 1.1.1.2.8.2 jruoho 902 1.1.1.2.8.2 jruoho ACPI_FUNCTION_TRACE (EvInstallSpaceHandler); 903 1.1.1.2.8.2 jruoho 904 1.1.1.2.8.2 jruoho 905 1.1.1.2.8.2 jruoho /* 906 1.1.1.2.8.2 jruoho * This registration is valid for only the types below and the root. This 907 1.1.1.2.8.2 jruoho * is where the default handlers get placed. 908 1.1.1.2.8.2 jruoho */ 909 1.1.1.2.8.2 jruoho if ((Node->Type != ACPI_TYPE_DEVICE) && 910 1.1.1.2.8.2 jruoho (Node->Type != ACPI_TYPE_PROCESSOR) && 911 1.1.1.2.8.2 jruoho (Node->Type != ACPI_TYPE_THERMAL) && 912 1.1.1.2.8.2 jruoho (Node != AcpiGbl_RootNode)) 913 1.1.1.2.8.2 jruoho { 914 1.1.1.2.8.2 jruoho Status = AE_BAD_PARAMETER; 915 1.1.1.2.8.2 jruoho goto UnlockAndExit; 916 1.1.1.2.8.2 jruoho } 917 1.1.1.2.8.2 jruoho 918 1.1.1.2.8.2 jruoho if (Handler == ACPI_DEFAULT_HANDLER) 919 1.1.1.2.8.2 jruoho { 920 1.1.1.2.8.2 jruoho Flags = ACPI_ADDR_HANDLER_DEFAULT_INSTALLED; 921 1.1.1.2.8.2 jruoho 922 1.1.1.2.8.2 jruoho switch (SpaceId) 923 1.1.1.2.8.2 jruoho { 924 1.1.1.2.8.2 jruoho case ACPI_ADR_SPACE_SYSTEM_MEMORY: 925 1.1.1.2.8.2 jruoho Handler = AcpiExSystemMemorySpaceHandler; 926 1.1.1.2.8.2 jruoho Setup = AcpiEvSystemMemoryRegionSetup; 927 1.1.1.2.8.2 jruoho break; 928 1.1.1.2.8.2 jruoho 929 1.1.1.2.8.2 jruoho case ACPI_ADR_SPACE_SYSTEM_IO: 930 1.1.1.2.8.2 jruoho Handler = AcpiExSystemIoSpaceHandler; 931 1.1.1.2.8.2 jruoho Setup = AcpiEvIoSpaceRegionSetup; 932 1.1.1.2.8.2 jruoho break; 933 1.1.1.2.8.2 jruoho 934 1.1.1.2.8.2 jruoho case ACPI_ADR_SPACE_PCI_CONFIG: 935 1.1.1.2.8.2 jruoho Handler = AcpiExPciConfigSpaceHandler; 936 1.1.1.2.8.2 jruoho Setup = AcpiEvPciConfigRegionSetup; 937 1.1.1.2.8.2 jruoho break; 938 1.1.1.2.8.2 jruoho 939 1.1.1.2.8.2 jruoho case ACPI_ADR_SPACE_CMOS: 940 1.1.1.2.8.2 jruoho Handler = AcpiExCmosSpaceHandler; 941 1.1.1.2.8.2 jruoho Setup = AcpiEvCmosRegionSetup; 942 1.1.1.2.8.2 jruoho break; 943 1.1.1.2.8.2 jruoho 944 1.1.1.2.8.2 jruoho case ACPI_ADR_SPACE_PCI_BAR_TARGET: 945 1.1.1.2.8.2 jruoho Handler = AcpiExPciBarSpaceHandler; 946 1.1.1.2.8.2 jruoho Setup = AcpiEvPciBarRegionSetup; 947 1.1.1.2.8.2 jruoho break; 948 1.1.1.2.8.2 jruoho 949 1.1.1.2.8.2 jruoho case ACPI_ADR_SPACE_DATA_TABLE: 950 1.1.1.2.8.2 jruoho Handler = AcpiExDataTableSpaceHandler; 951 1.1.1.2.8.2 jruoho Setup = NULL; 952 1.1.1.2.8.2 jruoho break; 953 1.1.1.2.8.2 jruoho 954 1.1.1.2.8.2 jruoho default: 955 1.1.1.2.8.2 jruoho Status = AE_BAD_PARAMETER; 956 1.1.1.2.8.2 jruoho goto UnlockAndExit; 957 1.1.1.2.8.2 jruoho } 958 1.1.1.2.8.2 jruoho } 959 1.1.1.2.8.2 jruoho 960 1.1.1.2.8.2 jruoho /* If the caller hasn't specified a setup routine, use the default */ 961 1.1.1.2.8.2 jruoho 962 1.1.1.2.8.2 jruoho if (!Setup) 963 1.1.1.2.8.2 jruoho { 964 1.1.1.2.8.2 jruoho Setup = AcpiEvDefaultRegionSetup; 965 1.1.1.2.8.2 jruoho } 966 1.1.1.2.8.2 jruoho 967 1.1.1.2.8.2 jruoho /* Check for an existing internal object */ 968 1.1.1.2.8.2 jruoho 969 1.1.1.2.8.2 jruoho ObjDesc = AcpiNsGetAttachedObject (Node); 970 1.1.1.2.8.2 jruoho if (ObjDesc) 971 1.1.1.2.8.2 jruoho { 972 1.1.1.2.8.2 jruoho /* 973 1.1.1.2.8.2 jruoho * The attached device object already exists. Make sure the handler 974 1.1.1.2.8.2 jruoho * is not already installed. 975 1.1.1.2.8.2 jruoho */ 976 1.1.1.2.8.2 jruoho HandlerObj = ObjDesc->Device.Handler; 977 1.1.1.2.8.2 jruoho 978 1.1.1.2.8.2 jruoho /* Walk the handler list for this device */ 979 1.1.1.2.8.2 jruoho 980 1.1.1.2.8.2 jruoho while (HandlerObj) 981 1.1.1.2.8.2 jruoho { 982 1.1.1.2.8.2 jruoho /* Same SpaceId indicates a handler already installed */ 983 1.1.1.2.8.2 jruoho 984 1.1.1.2.8.2 jruoho if (HandlerObj->AddressSpace.SpaceId == SpaceId) 985 1.1.1.2.8.2 jruoho { 986 1.1.1.2.8.2 jruoho if (HandlerObj->AddressSpace.Handler == Handler) 987 1.1.1.2.8.2 jruoho { 988 1.1.1.2.8.2 jruoho /* 989 1.1.1.2.8.2 jruoho * It is (relatively) OK to attempt to install the SAME 990 1.1.1.2.8.2 jruoho * handler twice. This can easily happen with the 991 1.1.1.2.8.2 jruoho * PCI_Config space. 992 1.1.1.2.8.2 jruoho */ 993 1.1.1.2.8.2 jruoho Status = AE_SAME_HANDLER; 994 1.1.1.2.8.2 jruoho goto UnlockAndExit; 995 1.1.1.2.8.2 jruoho } 996 1.1.1.2.8.2 jruoho else 997 1.1.1.2.8.2 jruoho { 998 1.1.1.2.8.2 jruoho /* A handler is already installed */ 999 1.1.1.2.8.2 jruoho 1000 1.1.1.2.8.2 jruoho Status = AE_ALREADY_EXISTS; 1001 1.1.1.2.8.2 jruoho } 1002 1.1.1.2.8.2 jruoho goto UnlockAndExit; 1003 1.1.1.2.8.2 jruoho } 1004 1.1.1.2.8.2 jruoho 1005 1.1.1.2.8.2 jruoho /* Walk the linked list of handlers */ 1006 1.1.1.2.8.2 jruoho 1007 1.1.1.2.8.2 jruoho HandlerObj = HandlerObj->AddressSpace.Next; 1008 1.1.1.2.8.2 jruoho } 1009 1.1.1.2.8.2 jruoho } 1010 1.1.1.2.8.2 jruoho else 1011 1.1.1.2.8.2 jruoho { 1012 1.1.1.2.8.2 jruoho ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, 1013 1.1.1.2.8.2 jruoho "Creating object on Device %p while installing handler\n", Node)); 1014 1.1.1.2.8.2 jruoho 1015 1.1.1.2.8.2 jruoho /* ObjDesc does not exist, create one */ 1016 1.1.1.2.8.2 jruoho 1017 1.1.1.2.8.2 jruoho if (Node->Type == ACPI_TYPE_ANY) 1018 1.1.1.2.8.2 jruoho { 1019 1.1.1.2.8.2 jruoho Type = ACPI_TYPE_DEVICE; 1020 1.1.1.2.8.2 jruoho } 1021 1.1.1.2.8.2 jruoho else 1022 1.1.1.2.8.2 jruoho { 1023 1.1.1.2.8.2 jruoho Type = Node->Type; 1024 1.1.1.2.8.2 jruoho } 1025 1.1.1.2.8.2 jruoho 1026 1.1.1.2.8.2 jruoho ObjDesc = AcpiUtCreateInternalObject (Type); 1027 1.1.1.2.8.2 jruoho if (!ObjDesc) 1028 1.1.1.2.8.2 jruoho { 1029 1.1.1.2.8.2 jruoho Status = AE_NO_MEMORY; 1030 1.1.1.2.8.2 jruoho goto UnlockAndExit; 1031 1.1.1.2.8.2 jruoho } 1032 1.1.1.2.8.2 jruoho 1033 1.1.1.2.8.2 jruoho /* Init new descriptor */ 1034 1.1.1.2.8.2 jruoho 1035 1.1.1.2.8.2 jruoho ObjDesc->Common.Type = (UINT8) Type; 1036 1.1.1.2.8.2 jruoho 1037 1.1.1.2.8.2 jruoho /* Attach the new object to the Node */ 1038 1.1.1.2.8.2 jruoho 1039 1.1.1.2.8.2 jruoho Status = AcpiNsAttachObject (Node, ObjDesc, Type); 1040 1.1.1.2.8.2 jruoho 1041 1.1.1.2.8.2 jruoho /* Remove local reference to the object */ 1042 1.1.1.2.8.2 jruoho 1043 1.1.1.2.8.2 jruoho AcpiUtRemoveReference (ObjDesc); 1044 1.1.1.2.8.2 jruoho 1045 1.1.1.2.8.2 jruoho if (ACPI_FAILURE (Status)) 1046 1.1.1.2.8.2 jruoho { 1047 1.1.1.2.8.2 jruoho goto UnlockAndExit; 1048 1.1.1.2.8.2 jruoho } 1049 1.1.1.2.8.2 jruoho } 1050 1.1.1.2.8.2 jruoho 1051 1.1.1.2.8.2 jruoho ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, 1052 1.1.1.2.8.2 jruoho "Installing address handler for region %s(%X) on Device %4.4s %p(%p)\n", 1053 1.1.1.2.8.2 jruoho AcpiUtGetRegionName (SpaceId), SpaceId, 1054 1.1.1.2.8.2 jruoho AcpiUtGetNodeName (Node), Node, ObjDesc)); 1055 1.1.1.2.8.2 jruoho 1056 1.1.1.2.8.2 jruoho /* 1057 1.1.1.2.8.2 jruoho * Install the handler 1058 1.1.1.2.8.2 jruoho * 1059 1.1.1.2.8.2 jruoho * At this point there is no existing handler. Just allocate the object 1060 1.1.1.2.8.2 jruoho * for the handler and link it into the list. 1061 1.1.1.2.8.2 jruoho */ 1062 1.1.1.2.8.2 jruoho HandlerObj = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_ADDRESS_HANDLER); 1063 1.1.1.2.8.2 jruoho if (!HandlerObj) 1064 1.1.1.2.8.2 jruoho { 1065 1.1.1.2.8.2 jruoho Status = AE_NO_MEMORY; 1066 1.1.1.2.8.2 jruoho goto UnlockAndExit; 1067 1.1.1.2.8.2 jruoho } 1068 1.1.1.2.8.2 jruoho 1069 1.1.1.2.8.2 jruoho /* Init handler obj */ 1070 1.1.1.2.8.2 jruoho 1071 1.1.1.2.8.2 jruoho HandlerObj->AddressSpace.SpaceId = (UINT8) SpaceId; 1072 1.1.1.2.8.2 jruoho HandlerObj->AddressSpace.HandlerFlags = Flags; 1073 1.1.1.2.8.2 jruoho HandlerObj->AddressSpace.RegionList = NULL; 1074 1.1.1.2.8.2 jruoho HandlerObj->AddressSpace.Node = Node; 1075 1.1.1.2.8.2 jruoho HandlerObj->AddressSpace.Handler = Handler; 1076 1.1.1.2.8.2 jruoho HandlerObj->AddressSpace.Context = Context; 1077 1.1.1.2.8.2 jruoho HandlerObj->AddressSpace.Setup = Setup; 1078 1.1.1.2.8.2 jruoho 1079 1.1.1.2.8.2 jruoho /* Install at head of Device.AddressSpace list */ 1080 1.1.1.2.8.2 jruoho 1081 1.1.1.2.8.2 jruoho HandlerObj->AddressSpace.Next = ObjDesc->Device.Handler; 1082 1.1.1.2.8.2 jruoho 1083 1.1.1.2.8.2 jruoho /* 1084 1.1.1.2.8.2 jruoho * The Device object is the first reference on the HandlerObj. 1085 1.1.1.2.8.2 jruoho * Each region that uses the handler adds a reference. 1086 1.1.1.2.8.2 jruoho */ 1087 1.1.1.2.8.2 jruoho ObjDesc->Device.Handler = HandlerObj; 1088 1.1.1.2.8.2 jruoho 1089 1.1.1.2.8.2 jruoho /* 1090 1.1.1.2.8.2 jruoho * Walk the namespace finding all of the regions this 1091 1.1.1.2.8.2 jruoho * handler will manage. 1092 1.1.1.2.8.2 jruoho * 1093 1.1.1.2.8.2 jruoho * Start at the device and search the branch toward 1094 1.1.1.2.8.2 jruoho * the leaf nodes until either the leaf is encountered or 1095 1.1.1.2.8.2 jruoho * a device is detected that has an address handler of the 1096 1.1.1.2.8.2 jruoho * same type. 1097 1.1.1.2.8.2 jruoho * 1098 1.1.1.2.8.2 jruoho * In either case, back up and search down the remainder 1099 1.1.1.2.8.2 jruoho * of the branch 1100 1.1.1.2.8.2 jruoho */ 1101 1.1.1.2.8.2 jruoho Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, Node, ACPI_UINT32_MAX, 1102 1.1.1.2.8.2 jruoho ACPI_NS_WALK_UNLOCK, AcpiEvInstallHandler, NULL, 1103 1.1.1.2.8.2 jruoho HandlerObj, NULL); 1104 1.1.1.2.8.2 jruoho 1105 1.1.1.2.8.2 jruoho UnlockAndExit: 1106 1.1.1.2.8.2 jruoho return_ACPI_STATUS (Status); 1107 1.1.1.2.8.2 jruoho } 1108 1.1.1.2.8.2 jruoho 1109 1.1.1.2.8.2 jruoho 1110 1.1.1.2.8.2 jruoho /******************************************************************************* 1111 1.1.1.2.8.2 jruoho * 1112 1.1.1.2.8.2 jruoho * FUNCTION: AcpiEvExecuteRegMethods 1113 1.1.1.2.8.2 jruoho * 1114 1.1.1.2.8.2 jruoho * PARAMETERS: Node - Namespace node for the device 1115 1.1.1.2.8.2 jruoho * SpaceId - The address space ID 1116 1.1.1.2.8.2 jruoho * 1117 1.1.1.2.8.2 jruoho * RETURN: Status 1118 1.1.1.2.8.2 jruoho * 1119 1.1.1.2.8.2 jruoho * DESCRIPTION: Run all _REG methods for the input Space ID; 1120 1.1.1.2.8.2 jruoho * Note: assumes namespace is locked, or system init time. 1121 1.1.1.2.8.2 jruoho * 1122 1.1.1.2.8.2 jruoho ******************************************************************************/ 1123 1.1.1.2.8.2 jruoho 1124 1.1.1.2.8.2 jruoho ACPI_STATUS 1125 1.1.1.2.8.2 jruoho AcpiEvExecuteRegMethods ( 1126 1.1.1.2.8.2 jruoho ACPI_NAMESPACE_NODE *Node, 1127 1.1.1.2.8.2 jruoho ACPI_ADR_SPACE_TYPE SpaceId) 1128 1.1.1.2.8.2 jruoho { 1129 1.1.1.2.8.2 jruoho ACPI_STATUS Status; 1130 1.1.1.2.8.2 jruoho 1131 1.1.1.2.8.2 jruoho 1132 1.1.1.2.8.2 jruoho ACPI_FUNCTION_TRACE (EvExecuteRegMethods); 1133 1.1.1.2.8.2 jruoho 1134 1.1.1.2.8.2 jruoho 1135 1.1.1.2.8.2 jruoho /* 1136 1.1.1.2.8.2 jruoho * Run all _REG methods for all Operation Regions for this space ID. This 1137 1.1.1.2.8.2 jruoho * is a separate walk in order to handle any interdependencies between 1138 1.1.1.2.8.2 jruoho * regions and _REG methods. (i.e. handlers must be installed for all 1139 1.1.1.2.8.2 jruoho * regions of this Space ID before we can run any _REG methods) 1140 1.1.1.2.8.2 jruoho */ 1141 1.1.1.2.8.2 jruoho Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, Node, ACPI_UINT32_MAX, 1142 1.1.1.2.8.2 jruoho ACPI_NS_WALK_UNLOCK, AcpiEvRegRun, NULL, 1143 1.1.1.2.8.2 jruoho &SpaceId, NULL); 1144 1.1.1.2.8.2 jruoho 1145 1.1.1.2.8.2 jruoho return_ACPI_STATUS (Status); 1146 1.1.1.2.8.2 jruoho } 1147 1.1.1.2.8.2 jruoho 1148 1.1.1.2.8.2 jruoho 1149 1.1.1.2.8.2 jruoho /******************************************************************************* 1150 1.1.1.2.8.2 jruoho * 1151 1.1.1.2.8.2 jruoho * FUNCTION: AcpiEvRegRun 1152 1.1.1.2.8.2 jruoho * 1153 1.1.1.2.8.2 jruoho * PARAMETERS: WalkNamespace callback 1154 1.1.1.2.8.2 jruoho * 1155 1.1.1.2.8.2 jruoho * DESCRIPTION: Run _REG method for region objects of the requested spaceID 1156 1.1.1.2.8.2 jruoho * 1157 1.1.1.2.8.2 jruoho ******************************************************************************/ 1158 1.1.1.2.8.2 jruoho 1159 1.1.1.2.8.2 jruoho static ACPI_STATUS 1160 1.1.1.2.8.2 jruoho AcpiEvRegRun ( 1161 1.1.1.2.8.2 jruoho ACPI_HANDLE ObjHandle, 1162 1.1.1.2.8.2 jruoho UINT32 Level, 1163 1.1.1.2.8.2 jruoho void *Context, 1164 1.1.1.2.8.2 jruoho void **ReturnValue) 1165 1.1.1.2.8.2 jruoho { 1166 1.1.1.2.8.2 jruoho ACPI_OPERAND_OBJECT *ObjDesc; 1167 1.1.1.2.8.2 jruoho ACPI_NAMESPACE_NODE *Node; 1168 1.1.1.2.8.2 jruoho ACPI_ADR_SPACE_TYPE SpaceId; 1169 1.1.1.2.8.2 jruoho ACPI_STATUS Status; 1170 1.1.1.2.8.2 jruoho 1171 1.1.1.2.8.2 jruoho 1172 1.1.1.2.8.2 jruoho SpaceId = *ACPI_CAST_PTR (ACPI_ADR_SPACE_TYPE, Context); 1173 1.1.1.2.8.2 jruoho 1174 1.1.1.2.8.2 jruoho /* Convert and validate the device handle */ 1175 1.1.1.2.8.2 jruoho 1176 1.1.1.2.8.2 jruoho Node = AcpiNsValidateHandle (ObjHandle); 1177 1.1.1.2.8.2 jruoho if (!Node) 1178 1.1.1.2.8.2 jruoho { 1179 1.1.1.2.8.2 jruoho return (AE_BAD_PARAMETER); 1180 1.1.1.2.8.2 jruoho } 1181 1.1.1.2.8.2 jruoho 1182 1.1.1.2.8.2 jruoho /* 1183 1.1.1.2.8.2 jruoho * We only care about regions.and objects that are allowed to have address 1184 1.1.1.2.8.2 jruoho * space handlers 1185 1.1.1.2.8.2 jruoho */ 1186 1.1.1.2.8.2 jruoho if ((Node->Type != ACPI_TYPE_REGION) && 1187 1.1.1.2.8.2 jruoho (Node != AcpiGbl_RootNode)) 1188 1.1.1.2.8.2 jruoho { 1189 1.1.1.2.8.2 jruoho return (AE_OK); 1190 1.1.1.2.8.2 jruoho } 1191 1.1.1.2.8.2 jruoho 1192 1.1.1.2.8.2 jruoho /* Check for an existing internal object */ 1193 1.1.1.2.8.2 jruoho 1194 1.1.1.2.8.2 jruoho ObjDesc = AcpiNsGetAttachedObject (Node); 1195 1.1.1.2.8.2 jruoho if (!ObjDesc) 1196 1.1.1.2.8.2 jruoho { 1197 1.1.1.2.8.2 jruoho /* No object, just exit */ 1198 1.1.1.2.8.2 jruoho 1199 1.1.1.2.8.2 jruoho return (AE_OK); 1200 1.1.1.2.8.2 jruoho } 1201 1.1.1.2.8.2 jruoho 1202 1.1.1.2.8.2 jruoho /* Object is a Region */ 1203 1.1.1.2.8.2 jruoho 1204 1.1.1.2.8.2 jruoho if (ObjDesc->Region.SpaceId != SpaceId) 1205 1.1.1.2.8.2 jruoho { 1206 1.1.1.2.8.2 jruoho /* This region is for a different address space, just ignore it */ 1207 1.1.1.2.8.2 jruoho 1208 1.1.1.2.8.2 jruoho return (AE_OK); 1209 1.1.1.2.8.2 jruoho } 1210 1.1.1.2.8.2 jruoho 1211 1.1.1.2.8.2 jruoho Status = AcpiEvExecuteRegMethod (ObjDesc, 1); 1212 1.1.1.2.8.2 jruoho return (Status); 1213 1.1.1.2.8.2 jruoho } 1214 1.1.1.2.8.2 jruoho 1215
Indexes created Sat Oct 25 16:10:12 GMT 2025