evgpeblk.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: evgpeblk - GPE block creation and initialization. 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 #include "acpi.h" 45 1.1.1.2.4.2 rmind #include "accommon.h" 46 1.1.1.2.4.2 rmind #include "acevents.h" 47 1.1.1.2.4.2 rmind #include "acnamesp.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 ("evgpeblk") 51 1.1.1.2.4.2 rmind 52 1.1.1.2.4.2 rmind /* Local prototypes */ 53 1.1.1.2.4.2 rmind 54 1.1.1.2.4.2 rmind static ACPI_STATUS 55 1.1.1.2.4.2 rmind AcpiEvInstallGpeBlock ( 56 1.1.1.2.4.2 rmind ACPI_GPE_BLOCK_INFO *GpeBlock, 57 1.1.1.2.4.2 rmind UINT32 InterruptNumber); 58 1.1.1.2.4.2 rmind 59 1.1.1.2.4.2 rmind static ACPI_STATUS 60 1.1.1.2.4.2 rmind AcpiEvCreateGpeInfoBlocks ( 61 1.1.1.2.4.2 rmind ACPI_GPE_BLOCK_INFO *GpeBlock); 62 1.1.1.2.4.2 rmind 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 * FUNCTION: AcpiEvInstallGpeBlock 67 1.1.1.2.4.2 rmind * 68 1.1.1.2.4.2 rmind * PARAMETERS: GpeBlock - New GPE block 69 1.1.1.2.4.2 rmind * InterruptNumber - Xrupt to be associated with this 70 1.1.1.2.4.2 rmind * GPE block 71 1.1.1.2.4.2 rmind * 72 1.1.1.2.4.2 rmind * RETURN: Status 73 1.1.1.2.4.2 rmind * 74 1.1.1.2.4.2 rmind * DESCRIPTION: Install new GPE block with mutex support 75 1.1.1.2.4.2 rmind * 76 1.1.1.2.4.2 rmind ******************************************************************************/ 77 1.1.1.2.4.2 rmind 78 1.1.1.2.4.2 rmind static ACPI_STATUS 79 1.1.1.2.4.2 rmind AcpiEvInstallGpeBlock ( 80 1.1.1.2.4.2 rmind ACPI_GPE_BLOCK_INFO *GpeBlock, 81 1.1.1.2.4.2 rmind UINT32 InterruptNumber) 82 1.1.1.2.4.2 rmind { 83 1.1.1.2.4.2 rmind ACPI_GPE_BLOCK_INFO *NextGpeBlock; 84 1.1.1.2.4.2 rmind ACPI_GPE_XRUPT_INFO *GpeXruptBlock; 85 1.1.1.2.4.2 rmind ACPI_STATUS Status; 86 1.1.1.2.4.2 rmind ACPI_CPU_FLAGS Flags; 87 1.1.1.2.4.2 rmind 88 1.1.1.2.4.2 rmind 89 1.1.1.2.4.2 rmind ACPI_FUNCTION_TRACE (EvInstallGpeBlock); 90 1.1.1.2.4.2 rmind 91 1.1.1.2.4.2 rmind 92 1.1.1.2.4.2 rmind Status = AcpiUtAcquireMutex (ACPI_MTX_EVENTS); 93 1.1.1.2.4.2 rmind if (ACPI_FAILURE (Status)) 94 1.1.1.2.4.2 rmind { 95 1.1.1.2.4.2 rmind return_ACPI_STATUS (Status); 96 1.1.1.2.4.2 rmind } 97 1.1.1.2.4.2 rmind 98 1.1.1.2.4.2 rmind GpeXruptBlock = AcpiEvGetGpeXruptBlock (InterruptNumber); 99 1.1.1.2.4.2 rmind if (!GpeXruptBlock) 100 1.1.1.2.4.2 rmind { 101 1.1.1.2.4.2 rmind Status = AE_NO_MEMORY; 102 1.1.1.2.4.2 rmind goto UnlockAndExit; 103 1.1.1.2.4.2 rmind } 104 1.1.1.2.4.2 rmind 105 1.1.1.2.4.2 rmind /* Install the new block at the end of the list with lock */ 106 1.1.1.2.4.2 rmind 107 1.1.1.2.4.2 rmind Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock); 108 1.1.1.2.4.2 rmind if (GpeXruptBlock->GpeBlockListHead) 109 1.1.1.2.4.2 rmind { 110 1.1.1.2.4.2 rmind NextGpeBlock = GpeXruptBlock->GpeBlockListHead; 111 1.1.1.2.4.2 rmind while (NextGpeBlock->Next) 112 1.1.1.2.4.2 rmind { 113 1.1.1.2.4.2 rmind NextGpeBlock = NextGpeBlock->Next; 114 1.1.1.2.4.2 rmind } 115 1.1.1.2.4.2 rmind 116 1.1.1.2.4.2 rmind NextGpeBlock->Next = GpeBlock; 117 1.1.1.2.4.2 rmind GpeBlock->Previous = NextGpeBlock; 118 1.1.1.2.4.2 rmind } 119 1.1.1.2.4.2 rmind else 120 1.1.1.2.4.2 rmind { 121 1.1.1.2.4.2 rmind GpeXruptBlock->GpeBlockListHead = GpeBlock; 122 1.1.1.2.4.2 rmind } 123 1.1.1.2.4.2 rmind 124 1.1.1.2.4.2 rmind GpeBlock->XruptBlock = GpeXruptBlock; 125 1.1.1.2.4.2 rmind AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags); 126 1.1.1.2.4.2 rmind 127 1.1.1.2.4.2 rmind 128 1.1.1.2.4.2 rmind UnlockAndExit: 129 1.1.1.2.4.2 rmind Status = AcpiUtReleaseMutex (ACPI_MTX_EVENTS); 130 1.1.1.2.4.2 rmind return_ACPI_STATUS (Status); 131 1.1.1.2.4.2 rmind } 132 1.1.1.2.4.2 rmind 133 1.1.1.2.4.2 rmind 134 1.1.1.2.4.2 rmind /******************************************************************************* 135 1.1.1.2.4.2 rmind * 136 1.1.1.2.4.2 rmind * FUNCTION: AcpiEvDeleteGpeBlock 137 1.1.1.2.4.2 rmind * 138 1.1.1.2.4.2 rmind * PARAMETERS: GpeBlock - Existing GPE block 139 1.1.1.2.4.2 rmind * 140 1.1.1.2.4.2 rmind * RETURN: Status 141 1.1.1.2.4.2 rmind * 142 1.1.1.2.4.2 rmind * DESCRIPTION: Remove a GPE block 143 1.1.1.2.4.2 rmind * 144 1.1.1.2.4.2 rmind ******************************************************************************/ 145 1.1.1.2.4.2 rmind 146 1.1.1.2.4.2 rmind ACPI_STATUS 147 1.1.1.2.4.2 rmind AcpiEvDeleteGpeBlock ( 148 1.1.1.2.4.2 rmind ACPI_GPE_BLOCK_INFO *GpeBlock) 149 1.1.1.2.4.2 rmind { 150 1.1.1.2.4.2 rmind ACPI_STATUS Status; 151 1.1.1.2.4.2 rmind ACPI_CPU_FLAGS Flags; 152 1.1.1.2.4.2 rmind 153 1.1.1.2.4.2 rmind 154 1.1.1.2.4.2 rmind ACPI_FUNCTION_TRACE (EvInstallGpeBlock); 155 1.1.1.2.4.2 rmind 156 1.1.1.2.4.2 rmind 157 1.1.1.2.4.2 rmind Status = AcpiUtAcquireMutex (ACPI_MTX_EVENTS); 158 1.1.1.2.4.2 rmind if (ACPI_FAILURE (Status)) 159 1.1.1.2.4.2 rmind { 160 1.1.1.2.4.2 rmind return_ACPI_STATUS (Status); 161 1.1.1.2.4.2 rmind } 162 1.1.1.2.4.2 rmind 163 1.1.1.2.4.2 rmind /* Disable all GPEs in this block */ 164 1.1.1.2.4.2 rmind 165 1.1.1.2.4.2 rmind Status = AcpiHwDisableGpeBlock (GpeBlock->XruptBlock, GpeBlock, NULL); 166 1.1.1.2.4.2 rmind 167 1.1.1.2.4.2 rmind if (!GpeBlock->Previous && !GpeBlock->Next) 168 1.1.1.2.4.2 rmind { 169 1.1.1.2.4.2 rmind /* This is the last GpeBlock on this interrupt */ 170 1.1.1.2.4.2 rmind 171 1.1.1.2.4.2 rmind Status = AcpiEvDeleteGpeXrupt (GpeBlock->XruptBlock); 172 1.1.1.2.4.2 rmind if (ACPI_FAILURE (Status)) 173 1.1.1.2.4.2 rmind { 174 1.1.1.2.4.2 rmind goto UnlockAndExit; 175 1.1.1.2.4.2 rmind } 176 1.1.1.2.4.2 rmind } 177 1.1.1.2.4.2 rmind else 178 1.1.1.2.4.2 rmind { 179 1.1.1.2.4.2 rmind /* Remove the block on this interrupt with lock */ 180 1.1.1.2.4.2 rmind 181 1.1.1.2.4.2 rmind Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock); 182 1.1.1.2.4.2 rmind if (GpeBlock->Previous) 183 1.1.1.2.4.2 rmind { 184 1.1.1.2.4.2 rmind GpeBlock->Previous->Next = GpeBlock->Next; 185 1.1.1.2.4.2 rmind } 186 1.1.1.2.4.2 rmind else 187 1.1.1.2.4.2 rmind { 188 1.1.1.2.4.2 rmind GpeBlock->XruptBlock->GpeBlockListHead = GpeBlock->Next; 189 1.1.1.2.4.2 rmind } 190 1.1.1.2.4.2 rmind 191 1.1.1.2.4.2 rmind if (GpeBlock->Next) 192 1.1.1.2.4.2 rmind { 193 1.1.1.2.4.2 rmind GpeBlock->Next->Previous = GpeBlock->Previous; 194 1.1.1.2.4.2 rmind } 195 1.1.1.2.4.2 rmind AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags); 196 1.1.1.2.4.2 rmind } 197 1.1.1.2.4.2 rmind 198 1.1.1.2.4.2 rmind AcpiCurrentGpeCount -= GpeBlock->GpeCount; 199 1.1.1.2.4.2 rmind 200 1.1.1.2.4.2 rmind /* Free the GpeBlock */ 201 1.1.1.2.4.2 rmind 202 1.1.1.2.4.2 rmind ACPI_FREE (GpeBlock->RegisterInfo); 203 1.1.1.2.4.2 rmind ACPI_FREE (GpeBlock->EventInfo); 204 1.1.1.2.4.2 rmind ACPI_FREE (GpeBlock); 205 1.1.1.2.4.2 rmind 206 1.1.1.2.4.2 rmind UnlockAndExit: 207 1.1.1.2.4.2 rmind Status = AcpiUtReleaseMutex (ACPI_MTX_EVENTS); 208 1.1.1.2.4.2 rmind return_ACPI_STATUS (Status); 209 1.1.1.2.4.2 rmind } 210 1.1.1.2.4.2 rmind 211 1.1.1.2.4.2 rmind 212 1.1.1.2.4.2 rmind /******************************************************************************* 213 1.1.1.2.4.2 rmind * 214 1.1.1.2.4.2 rmind * FUNCTION: AcpiEvCreateGpeInfoBlocks 215 1.1.1.2.4.2 rmind * 216 1.1.1.2.4.2 rmind * PARAMETERS: GpeBlock - New GPE block 217 1.1.1.2.4.2 rmind * 218 1.1.1.2.4.2 rmind * RETURN: Status 219 1.1.1.2.4.2 rmind * 220 1.1.1.2.4.2 rmind * DESCRIPTION: Create the RegisterInfo and EventInfo blocks for this GPE block 221 1.1.1.2.4.2 rmind * 222 1.1.1.2.4.2 rmind ******************************************************************************/ 223 1.1.1.2.4.2 rmind 224 1.1.1.2.4.2 rmind static ACPI_STATUS 225 1.1.1.2.4.2 rmind AcpiEvCreateGpeInfoBlocks ( 226 1.1.1.2.4.2 rmind ACPI_GPE_BLOCK_INFO *GpeBlock) 227 1.1.1.2.4.2 rmind { 228 1.1.1.2.4.2 rmind ACPI_GPE_REGISTER_INFO *GpeRegisterInfo = NULL; 229 1.1.1.2.4.2 rmind ACPI_GPE_EVENT_INFO *GpeEventInfo = NULL; 230 1.1.1.2.4.2 rmind ACPI_GPE_EVENT_INFO *ThisEvent; 231 1.1.1.2.4.2 rmind ACPI_GPE_REGISTER_INFO *ThisRegister; 232 1.1.1.2.4.2 rmind UINT32 i; 233 1.1.1.2.4.2 rmind UINT32 j; 234 1.1.1.2.4.2 rmind ACPI_STATUS Status; 235 1.1.1.2.4.2 rmind 236 1.1.1.2.4.2 rmind 237 1.1.1.2.4.2 rmind ACPI_FUNCTION_TRACE (EvCreateGpeInfoBlocks); 238 1.1.1.2.4.2 rmind 239 1.1.1.2.4.2 rmind 240 1.1.1.2.4.2 rmind /* Allocate the GPE register information block */ 241 1.1.1.2.4.2 rmind 242 1.1.1.2.4.2 rmind GpeRegisterInfo = ACPI_ALLOCATE_ZEROED ( 243 1.1.1.2.4.2 rmind (ACPI_SIZE) GpeBlock->RegisterCount * 244 1.1.1.2.4.2 rmind sizeof (ACPI_GPE_REGISTER_INFO)); 245 1.1.1.2.4.2 rmind if (!GpeRegisterInfo) 246 1.1.1.2.4.2 rmind { 247 1.1.1.2.4.2 rmind ACPI_ERROR ((AE_INFO, 248 1.1.1.2.4.2 rmind "Could not allocate the GpeRegisterInfo table")); 249 1.1.1.2.4.2 rmind return_ACPI_STATUS (AE_NO_MEMORY); 250 1.1.1.2.4.2 rmind } 251 1.1.1.2.4.2 rmind 252 1.1.1.2.4.2 rmind /* 253 1.1.1.2.4.2 rmind * Allocate the GPE EventInfo block. There are eight distinct GPEs 254 1.1.1.2.4.2 rmind * per register. Initialization to zeros is sufficient. 255 1.1.1.2.4.2 rmind */ 256 1.1.1.2.4.2 rmind GpeEventInfo = ACPI_ALLOCATE_ZEROED ((ACPI_SIZE) GpeBlock->GpeCount * 257 1.1.1.2.4.2 rmind sizeof (ACPI_GPE_EVENT_INFO)); 258 1.1.1.2.4.2 rmind if (!GpeEventInfo) 259 1.1.1.2.4.2 rmind { 260 1.1.1.2.4.2 rmind ACPI_ERROR ((AE_INFO, 261 1.1.1.2.4.2 rmind "Could not allocate the GpeEventInfo table")); 262 1.1.1.2.4.2 rmind Status = AE_NO_MEMORY; 263 1.1.1.2.4.2 rmind goto ErrorExit; 264 1.1.1.2.4.2 rmind } 265 1.1.1.2.4.2 rmind 266 1.1.1.2.4.2 rmind /* Save the new Info arrays in the GPE block */ 267 1.1.1.2.4.2 rmind 268 1.1.1.2.4.2 rmind GpeBlock->RegisterInfo = GpeRegisterInfo; 269 1.1.1.2.4.2 rmind GpeBlock->EventInfo = GpeEventInfo; 270 1.1.1.2.4.2 rmind 271 1.1.1.2.4.2 rmind /* 272 1.1.1.2.4.2 rmind * Initialize the GPE Register and Event structures. A goal of these 273 1.1.1.2.4.2 rmind * tables is to hide the fact that there are two separate GPE register 274 1.1.1.2.4.2 rmind * sets in a given GPE hardware block, the status registers occupy the 275 1.1.1.2.4.2 rmind * first half, and the enable registers occupy the second half. 276 1.1.1.2.4.2 rmind */ 277 1.1.1.2.4.2 rmind ThisRegister = GpeRegisterInfo; 278 1.1.1.2.4.2 rmind ThisEvent = GpeEventInfo; 279 1.1.1.2.4.2 rmind 280 1.1.1.2.4.2 rmind for (i = 0; i < GpeBlock->RegisterCount; i++) 281 1.1.1.2.4.2 rmind { 282 1.1.1.2.4.2 rmind /* Init the RegisterInfo for this GPE register (8 GPEs) */ 283 1.1.1.2.4.2 rmind 284 1.1.1.2.4.2 rmind ThisRegister->BaseGpeNumber = (UINT8) (GpeBlock->BlockBaseNumber + 285 1.1.1.2.4.2 rmind (i * ACPI_GPE_REGISTER_WIDTH)); 286 1.1.1.2.4.2 rmind 287 1.1.1.2.4.2 rmind ThisRegister->StatusAddress.Address = 288 1.1.1.2.4.2 rmind GpeBlock->BlockAddress.Address + i; 289 1.1.1.2.4.2 rmind 290 1.1.1.2.4.2 rmind ThisRegister->EnableAddress.Address = 291 1.1.1.2.4.2 rmind GpeBlock->BlockAddress.Address + i + GpeBlock->RegisterCount; 292 1.1.1.2.4.2 rmind 293 1.1.1.2.4.2 rmind ThisRegister->StatusAddress.SpaceId = GpeBlock->BlockAddress.SpaceId; 294 1.1.1.2.4.2 rmind ThisRegister->EnableAddress.SpaceId = GpeBlock->BlockAddress.SpaceId; 295 1.1.1.2.4.2 rmind ThisRegister->StatusAddress.BitWidth = ACPI_GPE_REGISTER_WIDTH; 296 1.1.1.2.4.2 rmind ThisRegister->EnableAddress.BitWidth = ACPI_GPE_REGISTER_WIDTH; 297 1.1.1.2.4.2 rmind ThisRegister->StatusAddress.BitOffset = 0; 298 1.1.1.2.4.2 rmind ThisRegister->EnableAddress.BitOffset = 0; 299 1.1.1.2.4.2 rmind 300 1.1.1.2.4.2 rmind /* Init the EventInfo for each GPE within this register */ 301 1.1.1.2.4.2 rmind 302 1.1.1.2.4.2 rmind for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) 303 1.1.1.2.4.2 rmind { 304 1.1.1.2.4.2 rmind ThisEvent->GpeNumber = (UINT8) (ThisRegister->BaseGpeNumber + j); 305 1.1.1.2.4.2 rmind ThisEvent->RegisterInfo = ThisRegister; 306 1.1.1.2.4.2 rmind ThisEvent++; 307 1.1.1.2.4.2 rmind } 308 1.1.1.2.4.2 rmind 309 1.1.1.2.4.2 rmind /* Disable all GPEs within this register */ 310 1.1.1.2.4.2 rmind 311 1.1.1.2.4.2 rmind Status = AcpiHwWrite (0x00, &ThisRegister->EnableAddress); 312 1.1.1.2.4.2 rmind if (ACPI_FAILURE (Status)) 313 1.1.1.2.4.2 rmind { 314 1.1.1.2.4.2 rmind goto ErrorExit; 315 1.1.1.2.4.2 rmind } 316 1.1.1.2.4.2 rmind 317 1.1.1.2.4.2 rmind /* Clear any pending GPE events within this register */ 318 1.1.1.2.4.2 rmind 319 1.1.1.2.4.2 rmind Status = AcpiHwWrite (0xFF, &ThisRegister->StatusAddress); 320 1.1.1.2.4.2 rmind if (ACPI_FAILURE (Status)) 321 1.1.1.2.4.2 rmind { 322 1.1.1.2.4.2 rmind goto ErrorExit; 323 1.1.1.2.4.2 rmind } 324 1.1.1.2.4.2 rmind 325 1.1.1.2.4.2 rmind ThisRegister++; 326 1.1.1.2.4.2 rmind } 327 1.1.1.2.4.2 rmind 328 1.1.1.2.4.2 rmind return_ACPI_STATUS (AE_OK); 329 1.1.1.2.4.2 rmind 330 1.1.1.2.4.2 rmind 331 1.1.1.2.4.2 rmind ErrorExit: 332 1.1.1.2.4.2 rmind if (GpeRegisterInfo) 333 1.1.1.2.4.2 rmind { 334 1.1.1.2.4.2 rmind ACPI_FREE (GpeRegisterInfo); 335 1.1.1.2.4.2 rmind } 336 1.1.1.2.4.2 rmind if (GpeEventInfo) 337 1.1.1.2.4.2 rmind { 338 1.1.1.2.4.2 rmind ACPI_FREE (GpeEventInfo); 339 1.1.1.2.4.2 rmind } 340 1.1.1.2.4.2 rmind 341 1.1.1.2.4.2 rmind return_ACPI_STATUS (Status); 342 1.1.1.2.4.2 rmind } 343 1.1.1.2.4.2 rmind 344 1.1.1.2.4.2 rmind 345 1.1.1.2.4.2 rmind /******************************************************************************* 346 1.1.1.2.4.2 rmind * 347 1.1.1.2.4.2 rmind * FUNCTION: AcpiEvCreateGpeBlock 348 1.1.1.2.4.2 rmind * 349 1.1.1.2.4.2 rmind * PARAMETERS: GpeDevice - Handle to the parent GPE block 350 1.1.1.2.4.2 rmind * GpeBlockAddress - Address and SpaceID 351 1.1.1.2.4.2 rmind * RegisterCount - Number of GPE register pairs in the block 352 1.1.1.2.4.2 rmind * GpeBlockBaseNumber - Starting GPE number for the block 353 1.1.1.2.4.2 rmind * InterruptNumber - H/W interrupt for the block 354 1.1.1.2.4.2 rmind * ReturnGpeBlock - Where the new block descriptor is returned 355 1.1.1.2.4.2 rmind * 356 1.1.1.2.4.2 rmind * RETURN: Status 357 1.1.1.2.4.2 rmind * 358 1.1.1.2.4.2 rmind * DESCRIPTION: Create and Install a block of GPE registers. All GPEs within 359 1.1.1.2.4.2 rmind * the block are disabled at exit. 360 1.1.1.2.4.2 rmind * Note: Assumes namespace is locked. 361 1.1.1.2.4.2 rmind * 362 1.1.1.2.4.2 rmind ******************************************************************************/ 363 1.1.1.2.4.2 rmind 364 1.1.1.2.4.2 rmind ACPI_STATUS 365 1.1.1.2.4.2 rmind AcpiEvCreateGpeBlock ( 366 1.1.1.2.4.2 rmind ACPI_NAMESPACE_NODE *GpeDevice, 367 1.1.1.2.4.2 rmind ACPI_GENERIC_ADDRESS *GpeBlockAddress, 368 1.1.1.2.4.2 rmind UINT32 RegisterCount, 369 1.1.1.2.4.2 rmind UINT8 GpeBlockBaseNumber, 370 1.1.1.2.4.2 rmind UINT32 InterruptNumber, 371 1.1.1.2.4.2 rmind ACPI_GPE_BLOCK_INFO **ReturnGpeBlock) 372 1.1.1.2.4.2 rmind { 373 1.1.1.2.4.2 rmind ACPI_STATUS Status; 374 1.1.1.2.4.2 rmind ACPI_GPE_BLOCK_INFO *GpeBlock; 375 1.1.1.2.4.2 rmind ACPI_GPE_WALK_INFO WalkInfo; 376 1.1.1.2.4.2 rmind 377 1.1.1.2.4.2 rmind 378 1.1.1.2.4.2 rmind ACPI_FUNCTION_TRACE (EvCreateGpeBlock); 379 1.1.1.2.4.2 rmind 380 1.1.1.2.4.2 rmind 381 1.1.1.2.4.2 rmind if (!RegisterCount) 382 1.1.1.2.4.2 rmind { 383 1.1.1.2.4.2 rmind return_ACPI_STATUS (AE_OK); 384 1.1.1.2.4.2 rmind } 385 1.1.1.2.4.2 rmind 386 1.1.1.2.4.2 rmind /* Allocate a new GPE block */ 387 1.1.1.2.4.2 rmind 388 1.1.1.2.4.2 rmind GpeBlock = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_GPE_BLOCK_INFO)); 389 1.1.1.2.4.2 rmind if (!GpeBlock) 390 1.1.1.2.4.2 rmind { 391 1.1.1.2.4.2 rmind return_ACPI_STATUS (AE_NO_MEMORY); 392 1.1.1.2.4.2 rmind } 393 1.1.1.2.4.2 rmind 394 1.1.1.2.4.2 rmind /* Initialize the new GPE block */ 395 1.1.1.2.4.2 rmind 396 1.1.1.2.4.2 rmind GpeBlock->Node = GpeDevice; 397 1.1.1.2.4.2 rmind GpeBlock->GpeCount = (UINT16) (RegisterCount * ACPI_GPE_REGISTER_WIDTH); 398 1.1.1.2.4.2 rmind GpeBlock->Initialized = FALSE; 399 1.1.1.2.4.2 rmind GpeBlock->RegisterCount = RegisterCount; 400 1.1.1.2.4.2 rmind GpeBlock->BlockBaseNumber = GpeBlockBaseNumber; 401 1.1.1.2.4.2 rmind 402 1.1.1.2.4.2 rmind ACPI_MEMCPY (&GpeBlock->BlockAddress, GpeBlockAddress, 403 1.1.1.2.4.2 rmind sizeof (ACPI_GENERIC_ADDRESS)); 404 1.1.1.2.4.2 rmind 405 1.1.1.2.4.2 rmind /* 406 1.1.1.2.4.2 rmind * Create the RegisterInfo and EventInfo sub-structures 407 1.1.1.2.4.2 rmind * Note: disables and clears all GPEs in the block 408 1.1.1.2.4.2 rmind */ 409 1.1.1.2.4.2 rmind Status = AcpiEvCreateGpeInfoBlocks (GpeBlock); 410 1.1.1.2.4.2 rmind if (ACPI_FAILURE (Status)) 411 1.1.1.2.4.2 rmind { 412 1.1.1.2.4.2 rmind ACPI_FREE (GpeBlock); 413 1.1.1.2.4.2 rmind return_ACPI_STATUS (Status); 414 1.1.1.2.4.2 rmind } 415 1.1.1.2.4.2 rmind 416 1.1.1.2.4.2 rmind /* Install the new block in the global lists */ 417 1.1.1.2.4.2 rmind 418 1.1.1.2.4.2 rmind Status = AcpiEvInstallGpeBlock (GpeBlock, InterruptNumber); 419 1.1.1.2.4.2 rmind if (ACPI_FAILURE (Status)) 420 1.1.1.2.4.2 rmind { 421 1.1.1.2.4.2 rmind ACPI_FREE (GpeBlock); 422 1.1.1.2.4.2 rmind return_ACPI_STATUS (Status); 423 1.1.1.2.4.2 rmind } 424 1.1.1.2.4.2 rmind 425 1.1.1.2.4.2 rmind AcpiGbl_AllGpesInitialized = FALSE; 426 1.1.1.2.4.2 rmind 427 1.1.1.2.4.2 rmind /* Find all GPE methods (_Lxx or_Exx) for this block */ 428 1.1.1.2.4.2 rmind 429 1.1.1.2.4.2 rmind WalkInfo.GpeBlock = GpeBlock; 430 1.1.1.2.4.2 rmind WalkInfo.GpeDevice = GpeDevice; 431 1.1.1.2.4.2 rmind WalkInfo.ExecuteByOwnerId = FALSE; 432 1.1.1.2.4.2 rmind 433 1.1.1.2.4.2 rmind Status = AcpiNsWalkNamespace (ACPI_TYPE_METHOD, GpeDevice, 434 1.1.1.2.4.2 rmind ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK, 435 1.1.1.2.4.2 rmind AcpiEvMatchGpeMethod, NULL, &WalkInfo, NULL); 436 1.1.1.2.4.2 rmind 437 1.1.1.2.4.2 rmind /* Return the new block */ 438 1.1.1.2.4.2 rmind 439 1.1.1.2.4.2 rmind if (ReturnGpeBlock) 440 1.1.1.2.4.2 rmind { 441 1.1.1.2.4.2 rmind (*ReturnGpeBlock) = GpeBlock; 442 1.1.1.2.4.2 rmind } 443 1.1.1.2.4.2 rmind 444 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_INIT, 445 1.1.1.2.4.2 rmind "GPE %02X to %02X [%4.4s] %u regs on int 0x%X\n", 446 1.1.1.2.4.2 rmind (UINT32) GpeBlock->BlockBaseNumber, 447 1.1.1.2.4.2 rmind (UINT32) (GpeBlock->BlockBaseNumber + (GpeBlock->GpeCount - 1)), 448 1.1.1.2.4.2 rmind GpeDevice->Name.Ascii, GpeBlock->RegisterCount, 449 1.1.1.2.4.2 rmind InterruptNumber)); 450 1.1.1.2.4.2 rmind 451 1.1.1.2.4.2 rmind /* Update global count of currently available GPEs */ 452 1.1.1.2.4.2 rmind 453 1.1.1.2.4.2 rmind AcpiCurrentGpeCount += GpeBlock->GpeCount; 454 1.1.1.2.4.2 rmind return_ACPI_STATUS (AE_OK); 455 1.1.1.2.4.2 rmind } 456 1.1.1.2.4.2 rmind 457 1.1.1.2.4.2 rmind 458 1.1.1.2.4.2 rmind /******************************************************************************* 459 1.1.1.2.4.2 rmind * 460 1.1.1.2.4.2 rmind * FUNCTION: AcpiEvInitializeGpeBlock 461 1.1.1.2.4.2 rmind * 462 1.1.1.2.4.2 rmind * PARAMETERS: ACPI_GPE_CALLBACK 463 1.1.1.2.4.2 rmind * 464 1.1.1.2.4.2 rmind * RETURN: Status 465 1.1.1.2.4.2 rmind * 466 1.1.1.2.4.2 rmind * DESCRIPTION: Initialize and enable a GPE block. Enable GPEs that have 467 1.1.1.2.4.2 rmind * associated methods. 468 1.1.1.2.4.2 rmind * Note: Assumes namespace is locked. 469 1.1.1.2.4.2 rmind * 470 1.1.1.2.4.2 rmind ******************************************************************************/ 471 1.1.1.2.4.2 rmind 472 1.1.1.2.4.2 rmind ACPI_STATUS 473 1.1.1.2.4.2 rmind AcpiEvInitializeGpeBlock ( 474 1.1.1.2.4.2 rmind ACPI_GPE_XRUPT_INFO *GpeXruptInfo, 475 1.1.1.2.4.2 rmind ACPI_GPE_BLOCK_INFO *GpeBlock, 476 1.1.1.2.4.2 rmind void *Ignored) 477 1.1.1.2.4.2 rmind { 478 1.1.1.2.4.2 rmind ACPI_STATUS Status; 479 1.1.1.2.4.2 rmind ACPI_GPE_EVENT_INFO *GpeEventInfo; 480 1.1.1.2.4.2 rmind UINT32 GpeEnabledCount; 481 1.1.1.2.4.2 rmind UINT32 GpeIndex; 482 1.1.1.2.4.2 rmind UINT32 i; 483 1.1.1.2.4.2 rmind UINT32 j; 484 1.1.1.2.4.2 rmind 485 1.1.1.2.4.2 rmind 486 1.1.1.2.4.2 rmind ACPI_FUNCTION_TRACE (EvInitializeGpeBlock); 487 1.1.1.2.4.2 rmind 488 1.1.1.2.4.2 rmind 489 1.1.1.2.4.2 rmind /* 490 1.1.1.2.4.2 rmind * Ignore a null GPE block (e.g., if no GPE block 1 exists), and 491 1.1.1.2.4.2 rmind * any GPE blocks that have been initialized already. 492 1.1.1.2.4.2 rmind */ 493 1.1.1.2.4.2 rmind if (!GpeBlock || GpeBlock->Initialized) 494 1.1.1.2.4.2 rmind { 495 1.1.1.2.4.2 rmind return_ACPI_STATUS (AE_OK); 496 1.1.1.2.4.2 rmind } 497 1.1.1.2.4.2 rmind 498 1.1.1.2.4.2 rmind /* 499 1.1.1.2.4.2 rmind * Enable all GPEs that have a corresponding method and have the 500 1.1.1.2.4.2 rmind * ACPI_GPE_CAN_WAKE flag unset. Any other GPEs within this block 501 1.1.1.2.4.2 rmind * must be enabled via the acpi_enable_gpe() interface. 502 1.1.1.2.4.2 rmind */ 503 1.1.1.2.4.2 rmind GpeEnabledCount = 0; 504 1.1.1.2.4.2 rmind 505 1.1.1.2.4.2 rmind for (i = 0; i < GpeBlock->RegisterCount; i++) 506 1.1.1.2.4.2 rmind { 507 1.1.1.2.4.2 rmind for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) 508 1.1.1.2.4.2 rmind { 509 1.1.1.2.4.2 rmind /* Get the info block for this particular GPE */ 510 1.1.1.2.4.2 rmind 511 1.1.1.2.4.2 rmind GpeIndex = (i * ACPI_GPE_REGISTER_WIDTH) + j; 512 1.1.1.2.4.2 rmind GpeEventInfo = &GpeBlock->EventInfo[GpeIndex]; 513 1.1.1.2.4.2 rmind 514 1.1.1.2.4.2 rmind /* 515 1.1.1.2.4.2 rmind * Ignore GPEs that have no corresponding _Lxx/_Exx method 516 1.1.1.2.4.2 rmind * and GPEs that are used to wake the system 517 1.1.1.2.4.2 rmind */ 518 1.1.1.2.4.2 rmind if (((GpeEventInfo->Flags & ACPI_GPE_DISPATCH_MASK) == ACPI_GPE_DISPATCH_NONE) || 519 1.1.1.2.4.2 rmind ((GpeEventInfo->Flags & ACPI_GPE_DISPATCH_MASK) == ACPI_GPE_DISPATCH_HANDLER) || 520 1.1.1.2.4.2 rmind (GpeEventInfo->Flags & ACPI_GPE_CAN_WAKE)) 521 1.1.1.2.4.2 rmind { 522 1.1.1.2.4.2 rmind continue; 523 1.1.1.2.4.2 rmind } 524 1.1.1.2.4.2 rmind 525 1.1.1.2.4.2 rmind Status = AcpiEvAddGpeReference (GpeEventInfo); 526 1.1.1.2.4.2 rmind if (ACPI_FAILURE (Status)) 527 1.1.1.2.4.2 rmind { 528 1.1.1.2.4.2 rmind ACPI_EXCEPTION ((AE_INFO, Status, 529 1.1.1.2.4.2 rmind "Could not enable GPE 0x%02X", 530 1.1.1.2.4.2 rmind GpeIndex + GpeBlock->BlockBaseNumber)); 531 1.1.1.2.4.2 rmind continue; 532 1.1.1.2.4.2 rmind } 533 1.1.1.2.4.2 rmind 534 1.1.1.2.4.2 rmind GpeEnabledCount++; 535 1.1.1.2.4.2 rmind } 536 1.1.1.2.4.2 rmind } 537 1.1.1.2.4.2 rmind 538 1.1.1.2.4.2 rmind if (GpeEnabledCount) 539 1.1.1.2.4.2 rmind { 540 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_INIT, 541 1.1.1.2.4.2 rmind "Enabled %u GPEs in this block\n", GpeEnabledCount)); 542 1.1.1.2.4.2 rmind } 543 1.1.1.2.4.2 rmind 544 1.1.1.2.4.2 rmind GpeBlock->Initialized = TRUE; 545 1.1.1.2.4.2 rmind return_ACPI_STATUS (AE_OK); 546 1.1.1.2.4.2 rmind } 547 1.1.1.2.4.2 rmind 548
Indexes created Wed Oct 22 13:09:56 GMT 2025