evgpeutil.c revision 1.1.1.2.4.2
1 1.1.1.2.4.2 rmind /****************************************************************************** 2 1.1.1.2.4.2 rmind * 3 1.1.1.2.4.2 rmind * Module Name: evgpeutil - GPE utilities 4 1.1.1.2.4.2 rmind * 5 1.1.1.2.4.2 rmind *****************************************************************************/ 6 1.1.1.2.4.2 rmind 7 1.1.1.2.4.2 rmind /* 8 1.1.1.2.4.2 rmind * Copyright (C) 2000 - 2011, Intel Corp. 9 1.1.1.2.4.2 rmind * All rights reserved. 10 1.1.1.2.4.2 rmind * 11 1.1.1.2.4.2 rmind * Redistribution and use in source and binary forms, with or without 12 1.1.1.2.4.2 rmind * modification, are permitted provided that the following conditions 13 1.1.1.2.4.2 rmind * are met: 14 1.1.1.2.4.2 rmind * 1. Redistributions of source code must retain the above copyright 15 1.1.1.2.4.2 rmind * notice, this list of conditions, and the following disclaimer, 16 1.1.1.2.4.2 rmind * without modification. 17 1.1.1.2.4.2 rmind * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 1.1.1.2.4.2 rmind * substantially similar to the "NO WARRANTY" disclaimer below 19 1.1.1.2.4.2 rmind * ("Disclaimer") and any redistribution must be conditioned upon 20 1.1.1.2.4.2 rmind * including a substantially similar Disclaimer requirement for further 21 1.1.1.2.4.2 rmind * binary redistribution. 22 1.1.1.2.4.2 rmind * 3. Neither the names of the above-listed copyright holders nor the names 23 1.1.1.2.4.2 rmind * of any contributors may be used to endorse or promote products derived 24 1.1.1.2.4.2 rmind * from this software without specific prior written permission. 25 1.1.1.2.4.2 rmind * 26 1.1.1.2.4.2 rmind * Alternatively, this software may be distributed under the terms of the 27 1.1.1.2.4.2 rmind * GNU General Public License ("GPL") version 2 as published by the Free 28 1.1.1.2.4.2 rmind * Software Foundation. 29 1.1.1.2.4.2 rmind * 30 1.1.1.2.4.2 rmind * NO WARRANTY 31 1.1.1.2.4.2 rmind * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 1.1.1.2.4.2 rmind * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 1.1.1.2.4.2 rmind * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34 1.1.1.2.4.2 rmind * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 1.1.1.2.4.2 rmind * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 1.1.1.2.4.2 rmind * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 1.1.1.2.4.2 rmind * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 1.1.1.2.4.2 rmind * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 1.1.1.2.4.2 rmind * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 1.1.1.2.4.2 rmind * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 1.1.1.2.4.2 rmind * POSSIBILITY OF SUCH DAMAGES. 42 1.1.1.2.4.2 rmind */ 43 1.1.1.2.4.2 rmind 44 1.1.1.2.4.2 rmind 45 1.1.1.2.4.2 rmind #include "acpi.h" 46 1.1.1.2.4.2 rmind #include "accommon.h" 47 1.1.1.2.4.2 rmind #include "acevents.h" 48 1.1.1.2.4.2 rmind 49 1.1.1.2.4.2 rmind #define _COMPONENT ACPI_EVENTS 50 1.1.1.2.4.2 rmind ACPI_MODULE_NAME ("evgpeutil") 51 1.1.1.2.4.2 rmind 52 1.1.1.2.4.2 rmind 53 1.1.1.2.4.2 rmind /******************************************************************************* 54 1.1.1.2.4.2 rmind * 55 1.1.1.2.4.2 rmind * FUNCTION: AcpiEvWalkGpeList 56 1.1.1.2.4.2 rmind * 57 1.1.1.2.4.2 rmind * PARAMETERS: GpeWalkCallback - Routine called for each GPE block 58 1.1.1.2.4.2 rmind * Context - Value passed to callback 59 1.1.1.2.4.2 rmind * 60 1.1.1.2.4.2 rmind * RETURN: Status 61 1.1.1.2.4.2 rmind * 62 1.1.1.2.4.2 rmind * DESCRIPTION: Walk the GPE lists. 63 1.1.1.2.4.2 rmind * 64 1.1.1.2.4.2 rmind ******************************************************************************/ 65 1.1.1.2.4.2 rmind 66 1.1.1.2.4.2 rmind ACPI_STATUS 67 1.1.1.2.4.2 rmind AcpiEvWalkGpeList ( 68 1.1.1.2.4.2 rmind ACPI_GPE_CALLBACK GpeWalkCallback, 69 1.1.1.2.4.2 rmind void *Context) 70 1.1.1.2.4.2 rmind { 71 1.1.1.2.4.2 rmind ACPI_GPE_BLOCK_INFO *GpeBlock; 72 1.1.1.2.4.2 rmind ACPI_GPE_XRUPT_INFO *GpeXruptInfo; 73 1.1.1.2.4.2 rmind ACPI_STATUS Status = AE_OK; 74 1.1.1.2.4.2 rmind ACPI_CPU_FLAGS Flags; 75 1.1.1.2.4.2 rmind 76 1.1.1.2.4.2 rmind 77 1.1.1.2.4.2 rmind ACPI_FUNCTION_TRACE (EvWalkGpeList); 78 1.1.1.2.4.2 rmind 79 1.1.1.2.4.2 rmind 80 1.1.1.2.4.2 rmind Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock); 81 1.1.1.2.4.2 rmind 82 1.1.1.2.4.2 rmind /* Walk the interrupt level descriptor list */ 83 1.1.1.2.4.2 rmind 84 1.1.1.2.4.2 rmind GpeXruptInfo = AcpiGbl_GpeXruptListHead; 85 1.1.1.2.4.2 rmind while (GpeXruptInfo) 86 1.1.1.2.4.2 rmind { 87 1.1.1.2.4.2 rmind /* Walk all Gpe Blocks attached to this interrupt level */ 88 1.1.1.2.4.2 rmind 89 1.1.1.2.4.2 rmind GpeBlock = GpeXruptInfo->GpeBlockListHead; 90 1.1.1.2.4.2 rmind while (GpeBlock) 91 1.1.1.2.4.2 rmind { 92 1.1.1.2.4.2 rmind /* One callback per GPE block */ 93 1.1.1.2.4.2 rmind 94 1.1.1.2.4.2 rmind Status = GpeWalkCallback (GpeXruptInfo, GpeBlock, Context); 95 1.1.1.2.4.2 rmind if (ACPI_FAILURE (Status)) 96 1.1.1.2.4.2 rmind { 97 1.1.1.2.4.2 rmind if (Status == AE_CTRL_END) /* Callback abort */ 98 1.1.1.2.4.2 rmind { 99 1.1.1.2.4.2 rmind Status = AE_OK; 100 1.1.1.2.4.2 rmind } 101 1.1.1.2.4.2 rmind goto UnlockAndExit; 102 1.1.1.2.4.2 rmind } 103 1.1.1.2.4.2 rmind 104 1.1.1.2.4.2 rmind GpeBlock = GpeBlock->Next; 105 1.1.1.2.4.2 rmind } 106 1.1.1.2.4.2 rmind 107 1.1.1.2.4.2 rmind GpeXruptInfo = GpeXruptInfo->Next; 108 1.1.1.2.4.2 rmind } 109 1.1.1.2.4.2 rmind 110 1.1.1.2.4.2 rmind UnlockAndExit: 111 1.1.1.2.4.2 rmind AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags); 112 1.1.1.2.4.2 rmind return_ACPI_STATUS (Status); 113 1.1.1.2.4.2 rmind } 114 1.1.1.2.4.2 rmind 115 1.1.1.2.4.2 rmind 116 1.1.1.2.4.2 rmind /******************************************************************************* 117 1.1.1.2.4.2 rmind * 118 1.1.1.2.4.2 rmind * FUNCTION: AcpiEvValidGpeEvent 119 1.1.1.2.4.2 rmind * 120 1.1.1.2.4.2 rmind * PARAMETERS: GpeEventInfo - Info for this GPE 121 1.1.1.2.4.2 rmind * 122 1.1.1.2.4.2 rmind * RETURN: TRUE if the GpeEvent is valid 123 1.1.1.2.4.2 rmind * 124 1.1.1.2.4.2 rmind * DESCRIPTION: Validate a GPE event. DO NOT CALL FROM INTERRUPT LEVEL. 125 1.1.1.2.4.2 rmind * Should be called only when the GPE lists are semaphore locked 126 1.1.1.2.4.2 rmind * and not subject to change. 127 1.1.1.2.4.2 rmind * 128 1.1.1.2.4.2 rmind ******************************************************************************/ 129 1.1.1.2.4.2 rmind 130 1.1.1.2.4.2 rmind BOOLEAN 131 1.1.1.2.4.2 rmind AcpiEvValidGpeEvent ( 132 1.1.1.2.4.2 rmind ACPI_GPE_EVENT_INFO *GpeEventInfo) 133 1.1.1.2.4.2 rmind { 134 1.1.1.2.4.2 rmind ACPI_GPE_XRUPT_INFO *GpeXruptBlock; 135 1.1.1.2.4.2 rmind ACPI_GPE_BLOCK_INFO *GpeBlock; 136 1.1.1.2.4.2 rmind 137 1.1.1.2.4.2 rmind 138 1.1.1.2.4.2 rmind ACPI_FUNCTION_ENTRY (); 139 1.1.1.2.4.2 rmind 140 1.1.1.2.4.2 rmind 141 1.1.1.2.4.2 rmind /* No need for spin lock since we are not changing any list elements */ 142 1.1.1.2.4.2 rmind 143 1.1.1.2.4.2 rmind /* Walk the GPE interrupt levels */ 144 1.1.1.2.4.2 rmind 145 1.1.1.2.4.2 rmind GpeXruptBlock = AcpiGbl_GpeXruptListHead; 146 1.1.1.2.4.2 rmind while (GpeXruptBlock) 147 1.1.1.2.4.2 rmind { 148 1.1.1.2.4.2 rmind GpeBlock = GpeXruptBlock->GpeBlockListHead; 149 1.1.1.2.4.2 rmind 150 1.1.1.2.4.2 rmind /* Walk the GPE blocks on this interrupt level */ 151 1.1.1.2.4.2 rmind 152 1.1.1.2.4.2 rmind while (GpeBlock) 153 1.1.1.2.4.2 rmind { 154 1.1.1.2.4.2 rmind if ((&GpeBlock->EventInfo[0] <= GpeEventInfo) && 155 1.1.1.2.4.2 rmind (&GpeBlock->EventInfo[GpeBlock->GpeCount] > GpeEventInfo)) 156 1.1.1.2.4.2 rmind { 157 1.1.1.2.4.2 rmind return (TRUE); 158 1.1.1.2.4.2 rmind } 159 1.1.1.2.4.2 rmind 160 1.1.1.2.4.2 rmind GpeBlock = GpeBlock->Next; 161 1.1.1.2.4.2 rmind } 162 1.1.1.2.4.2 rmind 163 1.1.1.2.4.2 rmind GpeXruptBlock = GpeXruptBlock->Next; 164 1.1.1.2.4.2 rmind } 165 1.1.1.2.4.2 rmind 166 1.1.1.2.4.2 rmind return (FALSE); 167 1.1.1.2.4.2 rmind } 168 1.1.1.2.4.2 rmind 169 1.1.1.2.4.2 rmind 170 1.1.1.2.4.2 rmind /******************************************************************************* 171 1.1.1.2.4.2 rmind * 172 1.1.1.2.4.2 rmind * FUNCTION: AcpiEvGetGpeDevice 173 1.1.1.2.4.2 rmind * 174 1.1.1.2.4.2 rmind * PARAMETERS: GPE_WALK_CALLBACK 175 1.1.1.2.4.2 rmind * 176 1.1.1.2.4.2 rmind * RETURN: Status 177 1.1.1.2.4.2 rmind * 178 1.1.1.2.4.2 rmind * DESCRIPTION: Matches the input GPE index (0-CurrentGpeCount) with a GPE 179 1.1.1.2.4.2 rmind * block device. NULL if the GPE is one of the FADT-defined GPEs. 180 1.1.1.2.4.2 rmind * 181 1.1.1.2.4.2 rmind ******************************************************************************/ 182 1.1.1.2.4.2 rmind 183 1.1.1.2.4.2 rmind ACPI_STATUS 184 1.1.1.2.4.2 rmind AcpiEvGetGpeDevice ( 185 1.1.1.2.4.2 rmind ACPI_GPE_XRUPT_INFO *GpeXruptInfo, 186 1.1.1.2.4.2 rmind ACPI_GPE_BLOCK_INFO *GpeBlock, 187 1.1.1.2.4.2 rmind void *Context) 188 1.1.1.2.4.2 rmind { 189 1.1.1.2.4.2 rmind ACPI_GPE_DEVICE_INFO *Info = Context; 190 1.1.1.2.4.2 rmind 191 1.1.1.2.4.2 rmind 192 1.1.1.2.4.2 rmind /* Increment Index by the number of GPEs in this block */ 193 1.1.1.2.4.2 rmind 194 1.1.1.2.4.2 rmind Info->NextBlockBaseIndex += GpeBlock->GpeCount; 195 1.1.1.2.4.2 rmind 196 1.1.1.2.4.2 rmind if (Info->Index < Info->NextBlockBaseIndex) 197 1.1.1.2.4.2 rmind { 198 1.1.1.2.4.2 rmind /* 199 1.1.1.2.4.2 rmind * The GPE index is within this block, get the node. Leave the node 200 1.1.1.2.4.2 rmind * NULL for the FADT-defined GPEs 201 1.1.1.2.4.2 rmind */ 202 1.1.1.2.4.2 rmind if ((GpeBlock->Node)->Type == ACPI_TYPE_DEVICE) 203 1.1.1.2.4.2 rmind { 204 1.1.1.2.4.2 rmind Info->GpeDevice = GpeBlock->Node; 205 1.1.1.2.4.2 rmind } 206 1.1.1.2.4.2 rmind 207 1.1.1.2.4.2 rmind Info->Status = AE_OK; 208 1.1.1.2.4.2 rmind return (AE_CTRL_END); 209 1.1.1.2.4.2 rmind } 210 1.1.1.2.4.2 rmind 211 1.1.1.2.4.2 rmind return (AE_OK); 212 1.1.1.2.4.2 rmind } 213 1.1.1.2.4.2 rmind 214 1.1.1.2.4.2 rmind 215 1.1.1.2.4.2 rmind /******************************************************************************* 216 1.1.1.2.4.2 rmind * 217 1.1.1.2.4.2 rmind * FUNCTION: AcpiEvGetGpeXruptBlock 218 1.1.1.2.4.2 rmind * 219 1.1.1.2.4.2 rmind * PARAMETERS: InterruptNumber - Interrupt for a GPE block 220 1.1.1.2.4.2 rmind * 221 1.1.1.2.4.2 rmind * RETURN: A GPE interrupt block 222 1.1.1.2.4.2 rmind * 223 1.1.1.2.4.2 rmind * DESCRIPTION: Get or Create a GPE interrupt block. There is one interrupt 224 1.1.1.2.4.2 rmind * block per unique interrupt level used for GPEs. Should be 225 1.1.1.2.4.2 rmind * called only when the GPE lists are semaphore locked and not 226 1.1.1.2.4.2 rmind * subject to change. 227 1.1.1.2.4.2 rmind * 228 1.1.1.2.4.2 rmind ******************************************************************************/ 229 1.1.1.2.4.2 rmind 230 1.1.1.2.4.2 rmind ACPI_GPE_XRUPT_INFO * 231 1.1.1.2.4.2 rmind AcpiEvGetGpeXruptBlock ( 232 1.1.1.2.4.2 rmind UINT32 InterruptNumber) 233 1.1.1.2.4.2 rmind { 234 1.1.1.2.4.2 rmind ACPI_GPE_XRUPT_INFO *NextGpeXrupt; 235 1.1.1.2.4.2 rmind ACPI_GPE_XRUPT_INFO *GpeXrupt; 236 1.1.1.2.4.2 rmind ACPI_STATUS Status; 237 1.1.1.2.4.2 rmind ACPI_CPU_FLAGS Flags; 238 1.1.1.2.4.2 rmind 239 1.1.1.2.4.2 rmind 240 1.1.1.2.4.2 rmind ACPI_FUNCTION_TRACE (EvGetGpeXruptBlock); 241 1.1.1.2.4.2 rmind 242 1.1.1.2.4.2 rmind 243 1.1.1.2.4.2 rmind /* No need for lock since we are not changing any list elements here */ 244 1.1.1.2.4.2 rmind 245 1.1.1.2.4.2 rmind NextGpeXrupt = AcpiGbl_GpeXruptListHead; 246 1.1.1.2.4.2 rmind while (NextGpeXrupt) 247 1.1.1.2.4.2 rmind { 248 1.1.1.2.4.2 rmind if (NextGpeXrupt->InterruptNumber == InterruptNumber) 249 1.1.1.2.4.2 rmind { 250 1.1.1.2.4.2 rmind return_PTR (NextGpeXrupt); 251 1.1.1.2.4.2 rmind } 252 1.1.1.2.4.2 rmind 253 1.1.1.2.4.2 rmind NextGpeXrupt = NextGpeXrupt->Next; 254 1.1.1.2.4.2 rmind } 255 1.1.1.2.4.2 rmind 256 1.1.1.2.4.2 rmind /* Not found, must allocate a new xrupt descriptor */ 257 1.1.1.2.4.2 rmind 258 1.1.1.2.4.2 rmind GpeXrupt = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_GPE_XRUPT_INFO)); 259 1.1.1.2.4.2 rmind if (!GpeXrupt) 260 1.1.1.2.4.2 rmind { 261 1.1.1.2.4.2 rmind return_PTR (NULL); 262 1.1.1.2.4.2 rmind } 263 1.1.1.2.4.2 rmind 264 1.1.1.2.4.2 rmind GpeXrupt->InterruptNumber = InterruptNumber; 265 1.1.1.2.4.2 rmind 266 1.1.1.2.4.2 rmind /* Install new interrupt descriptor with spin lock */ 267 1.1.1.2.4.2 rmind 268 1.1.1.2.4.2 rmind Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock); 269 1.1.1.2.4.2 rmind if (AcpiGbl_GpeXruptListHead) 270 1.1.1.2.4.2 rmind { 271 1.1.1.2.4.2 rmind NextGpeXrupt = AcpiGbl_GpeXruptListHead; 272 1.1.1.2.4.2 rmind while (NextGpeXrupt->Next) 273 1.1.1.2.4.2 rmind { 274 1.1.1.2.4.2 rmind NextGpeXrupt = NextGpeXrupt->Next; 275 1.1.1.2.4.2 rmind } 276 1.1.1.2.4.2 rmind 277 1.1.1.2.4.2 rmind NextGpeXrupt->Next = GpeXrupt; 278 1.1.1.2.4.2 rmind GpeXrupt->Previous = NextGpeXrupt; 279 1.1.1.2.4.2 rmind } 280 1.1.1.2.4.2 rmind else 281 1.1.1.2.4.2 rmind { 282 1.1.1.2.4.2 rmind AcpiGbl_GpeXruptListHead = GpeXrupt; 283 1.1.1.2.4.2 rmind } 284 1.1.1.2.4.2 rmind AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags); 285 1.1.1.2.4.2 rmind 286 1.1.1.2.4.2 rmind /* Install new interrupt handler if not SCI_INT */ 287 1.1.1.2.4.2 rmind 288 1.1.1.2.4.2 rmind if (InterruptNumber != AcpiGbl_FADT.SciInterrupt) 289 1.1.1.2.4.2 rmind { 290 1.1.1.2.4.2 rmind Status = AcpiOsInstallInterruptHandler (InterruptNumber, 291 1.1.1.2.4.2 rmind AcpiEvGpeXruptHandler, GpeXrupt); 292 1.1.1.2.4.2 rmind if (ACPI_FAILURE (Status)) 293 1.1.1.2.4.2 rmind { 294 1.1.1.2.4.2 rmind ACPI_ERROR ((AE_INFO, 295 1.1.1.2.4.2 rmind "Could not install GPE interrupt handler at level 0x%X", 296 1.1.1.2.4.2 rmind InterruptNumber)); 297 1.1.1.2.4.2 rmind return_PTR (NULL); 298 1.1.1.2.4.2 rmind } 299 1.1.1.2.4.2 rmind } 300 1.1.1.2.4.2 rmind 301 1.1.1.2.4.2 rmind return_PTR (GpeXrupt); 302 1.1.1.2.4.2 rmind } 303 1.1.1.2.4.2 rmind 304 1.1.1.2.4.2 rmind 305 1.1.1.2.4.2 rmind /******************************************************************************* 306 1.1.1.2.4.2 rmind * 307 1.1.1.2.4.2 rmind * FUNCTION: AcpiEvDeleteGpeXrupt 308 1.1.1.2.4.2 rmind * 309 1.1.1.2.4.2 rmind * PARAMETERS: GpeXrupt - A GPE interrupt info block 310 1.1.1.2.4.2 rmind * 311 1.1.1.2.4.2 rmind * RETURN: Status 312 1.1.1.2.4.2 rmind * 313 1.1.1.2.4.2 rmind * DESCRIPTION: Remove and free a GpeXrupt block. Remove an associated 314 1.1.1.2.4.2 rmind * interrupt handler if not the SCI interrupt. 315 1.1.1.2.4.2 rmind * 316 1.1.1.2.4.2 rmind ******************************************************************************/ 317 1.1.1.2.4.2 rmind 318 1.1.1.2.4.2 rmind ACPI_STATUS 319 1.1.1.2.4.2 rmind AcpiEvDeleteGpeXrupt ( 320 1.1.1.2.4.2 rmind ACPI_GPE_XRUPT_INFO *GpeXrupt) 321 1.1.1.2.4.2 rmind { 322 1.1.1.2.4.2 rmind ACPI_STATUS Status; 323 1.1.1.2.4.2 rmind ACPI_CPU_FLAGS Flags; 324 1.1.1.2.4.2 rmind 325 1.1.1.2.4.2 rmind 326 1.1.1.2.4.2 rmind ACPI_FUNCTION_TRACE (EvDeleteGpeXrupt); 327 1.1.1.2.4.2 rmind 328 1.1.1.2.4.2 rmind 329 1.1.1.2.4.2 rmind /* We never want to remove the SCI interrupt handler */ 330 1.1.1.2.4.2 rmind 331 1.1.1.2.4.2 rmind if (GpeXrupt->InterruptNumber == AcpiGbl_FADT.SciInterrupt) 332 1.1.1.2.4.2 rmind { 333 1.1.1.2.4.2 rmind GpeXrupt->GpeBlockListHead = NULL; 334 1.1.1.2.4.2 rmind return_ACPI_STATUS (AE_OK); 335 1.1.1.2.4.2 rmind } 336 1.1.1.2.4.2 rmind 337 1.1.1.2.4.2 rmind /* Disable this interrupt */ 338 1.1.1.2.4.2 rmind 339 1.1.1.2.4.2 rmind Status = AcpiOsRemoveInterruptHandler ( 340 1.1.1.2.4.2 rmind GpeXrupt->InterruptNumber, AcpiEvGpeXruptHandler); 341 1.1.1.2.4.2 rmind if (ACPI_FAILURE (Status)) 342 1.1.1.2.4.2 rmind { 343 1.1.1.2.4.2 rmind return_ACPI_STATUS (Status); 344 1.1.1.2.4.2 rmind } 345 1.1.1.2.4.2 rmind 346 1.1.1.2.4.2 rmind /* Unlink the interrupt block with lock */ 347 1.1.1.2.4.2 rmind 348 1.1.1.2.4.2 rmind Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock); 349 1.1.1.2.4.2 rmind if (GpeXrupt->Previous) 350 1.1.1.2.4.2 rmind { 351 1.1.1.2.4.2 rmind GpeXrupt->Previous->Next = GpeXrupt->Next; 352 1.1.1.2.4.2 rmind } 353 1.1.1.2.4.2 rmind else 354 1.1.1.2.4.2 rmind { 355 1.1.1.2.4.2 rmind /* No previous, update list head */ 356 1.1.1.2.4.2 rmind 357 1.1.1.2.4.2 rmind AcpiGbl_GpeXruptListHead = GpeXrupt->Next; 358 1.1.1.2.4.2 rmind } 359 1.1.1.2.4.2 rmind 360 1.1.1.2.4.2 rmind if (GpeXrupt->Next) 361 1.1.1.2.4.2 rmind { 362 1.1.1.2.4.2 rmind GpeXrupt->Next->Previous = GpeXrupt->Previous; 363 1.1.1.2.4.2 rmind } 364 1.1.1.2.4.2 rmind AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags); 365 1.1.1.2.4.2 rmind 366 1.1.1.2.4.2 rmind /* Free the block */ 367 1.1.1.2.4.2 rmind 368 1.1.1.2.4.2 rmind ACPI_FREE (GpeXrupt); 369 1.1.1.2.4.2 rmind return_ACPI_STATUS (AE_OK); 370 1.1.1.2.4.2 rmind } 371 1.1.1.2.4.2 rmind 372 1.1.1.2.4.2 rmind 373 1.1.1.2.4.2 rmind /******************************************************************************* 374 1.1.1.2.4.2 rmind * 375 1.1.1.2.4.2 rmind * FUNCTION: AcpiEvDeleteGpeHandlers 376 1.1.1.2.4.2 rmind * 377 1.1.1.2.4.2 rmind * PARAMETERS: GpeXruptInfo - GPE Interrupt info 378 1.1.1.2.4.2 rmind * GpeBlock - Gpe Block info 379 1.1.1.2.4.2 rmind * 380 1.1.1.2.4.2 rmind * RETURN: Status 381 1.1.1.2.4.2 rmind * 382 1.1.1.2.4.2 rmind * DESCRIPTION: Delete all Handler objects found in the GPE data structs. 383 1.1.1.2.4.2 rmind * Used only prior to termination. 384 1.1.1.2.4.2 rmind * 385 1.1.1.2.4.2 rmind ******************************************************************************/ 386 1.1.1.2.4.2 rmind 387 1.1.1.2.4.2 rmind ACPI_STATUS 388 1.1.1.2.4.2 rmind AcpiEvDeleteGpeHandlers ( 389 1.1.1.2.4.2 rmind ACPI_GPE_XRUPT_INFO *GpeXruptInfo, 390 1.1.1.2.4.2 rmind ACPI_GPE_BLOCK_INFO *GpeBlock, 391 1.1.1.2.4.2 rmind void *Context) 392 1.1.1.2.4.2 rmind { 393 1.1.1.2.4.2 rmind ACPI_GPE_EVENT_INFO *GpeEventInfo; 394 1.1.1.2.4.2 rmind UINT32 i; 395 1.1.1.2.4.2 rmind UINT32 j; 396 1.1.1.2.4.2 rmind 397 1.1.1.2.4.2 rmind 398 1.1.1.2.4.2 rmind ACPI_FUNCTION_TRACE (EvDeleteGpeHandlers); 399 1.1.1.2.4.2 rmind 400 1.1.1.2.4.2 rmind 401 1.1.1.2.4.2 rmind /* Examine each GPE Register within the block */ 402 1.1.1.2.4.2 rmind 403 1.1.1.2.4.2 rmind for (i = 0; i < GpeBlock->RegisterCount; i++) 404 1.1.1.2.4.2 rmind { 405 1.1.1.2.4.2 rmind /* Now look at the individual GPEs in this byte register */ 406 1.1.1.2.4.2 rmind 407 1.1.1.2.4.2 rmind for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) 408 1.1.1.2.4.2 rmind { 409 1.1.1.2.4.2 rmind GpeEventInfo = &GpeBlock->EventInfo[((ACPI_SIZE) i * 410 1.1.1.2.4.2 rmind ACPI_GPE_REGISTER_WIDTH) + j]; 411 1.1.1.2.4.2 rmind 412 1.1.1.2.4.2 rmind if ((GpeEventInfo->Flags & ACPI_GPE_DISPATCH_MASK) == 413 1.1.1.2.4.2 rmind ACPI_GPE_DISPATCH_HANDLER) 414 1.1.1.2.4.2 rmind { 415 1.1.1.2.4.2 rmind ACPI_FREE (GpeEventInfo->Dispatch.Handler); 416 1.1.1.2.4.2 rmind GpeEventInfo->Dispatch.Handler = NULL; 417 1.1.1.2.4.2 rmind GpeEventInfo->Flags &= ~ACPI_GPE_DISPATCH_MASK; 418 1.1.1.2.4.2 rmind } 419 1.1.1.2.4.2 rmind } 420 1.1.1.2.4.2 rmind } 421 1.1.1.2.4.2 rmind 422 1.1.1.2.4.2 rmind return_ACPI_STATUS (AE_OK); 423 1.1.1.2.4.2 rmind } 424 1.1.1.2.4.2 rmind 425
Indexes created Fri Oct 31 04:09:52 GMT 2025