exregion.c revision 1.1.1.2.2.2
1 1.1.1.2.2.2 bouyer 2 1.1.1.2.2.2 bouyer /****************************************************************************** 3 1.1.1.2.2.2 bouyer * 4 1.1.1.2.2.2 bouyer * Module Name: exregion - ACPI default OpRegion (address space) handlers 5 1.1.1.2.2.2 bouyer * 6 1.1.1.2.2.2 bouyer *****************************************************************************/ 7 1.1.1.2.2.2 bouyer 8 1.1.1.2.2.2 bouyer /* 9 1.1.1.2.2.2 bouyer * Copyright (C) 2000 - 2011, Intel Corp. 10 1.1.1.2.2.2 bouyer * All rights reserved. 11 1.1.1.2.2.2 bouyer * 12 1.1.1.2.2.2 bouyer * Redistribution and use in source and binary forms, with or without 13 1.1.1.2.2.2 bouyer * modification, are permitted provided that the following conditions 14 1.1.1.2.2.2 bouyer * are met: 15 1.1.1.2.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 16 1.1.1.2.2.2 bouyer * notice, this list of conditions, and the following disclaimer, 17 1.1.1.2.2.2 bouyer * without modification. 18 1.1.1.2.2.2 bouyer * 2. Redistributions in binary form must reproduce at minimum a disclaimer 19 1.1.1.2.2.2 bouyer * substantially similar to the "NO WARRANTY" disclaimer below 20 1.1.1.2.2.2 bouyer * ("Disclaimer") and any redistribution must be conditioned upon 21 1.1.1.2.2.2 bouyer * including a substantially similar Disclaimer requirement for further 22 1.1.1.2.2.2 bouyer * binary redistribution. 23 1.1.1.2.2.2 bouyer * 3. Neither the names of the above-listed copyright holders nor the names 24 1.1.1.2.2.2 bouyer * of any contributors may be used to endorse or promote products derived 25 1.1.1.2.2.2 bouyer * from this software without specific prior written permission. 26 1.1.1.2.2.2 bouyer * 27 1.1.1.2.2.2 bouyer * Alternatively, this software may be distributed under the terms of the 28 1.1.1.2.2.2 bouyer * GNU General Public License ("GPL") version 2 as published by the Free 29 1.1.1.2.2.2 bouyer * Software Foundation. 30 1.1.1.2.2.2 bouyer * 31 1.1.1.2.2.2 bouyer * NO WARRANTY 32 1.1.1.2.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 33 1.1.1.2.2.2 bouyer * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 34 1.1.1.2.2.2 bouyer * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 35 1.1.1.2.2.2 bouyer * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 36 1.1.1.2.2.2 bouyer * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 1.1.1.2.2.2 bouyer * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 1.1.1.2.2.2 bouyer * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 1.1.1.2.2.2 bouyer * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 40 1.1.1.2.2.2 bouyer * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 41 1.1.1.2.2.2 bouyer * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 42 1.1.1.2.2.2 bouyer * POSSIBILITY OF SUCH DAMAGES. 43 1.1.1.2.2.2 bouyer */ 44 1.1.1.2.2.2 bouyer 45 1.1.1.2.2.2 bouyer 46 1.1.1.2.2.2 bouyer #define __EXREGION_C__ 47 1.1.1.2.2.2 bouyer 48 1.1.1.2.2.2 bouyer #include "acpi.h" 49 1.1.1.2.2.2 bouyer #include "accommon.h" 50 1.1.1.2.2.2 bouyer #include "acinterp.h" 51 1.1.1.2.2.2 bouyer 52 1.1.1.2.2.2 bouyer 53 1.1.1.2.2.2 bouyer #define _COMPONENT ACPI_EXECUTER 54 1.1.1.2.2.2 bouyer ACPI_MODULE_NAME ("exregion") 55 1.1.1.2.2.2 bouyer 56 1.1.1.2.2.2 bouyer 57 1.1.1.2.2.2 bouyer /******************************************************************************* 58 1.1.1.2.2.2 bouyer * 59 1.1.1.2.2.2 bouyer * FUNCTION: AcpiExSystemMemorySpaceHandler 60 1.1.1.2.2.2 bouyer * 61 1.1.1.2.2.2 bouyer * PARAMETERS: Function - Read or Write operation 62 1.1.1.2.2.2 bouyer * Address - Where in the space to read or write 63 1.1.1.2.2.2 bouyer * BitWidth - Field width in bits (8, 16, or 32) 64 1.1.1.2.2.2 bouyer * Value - Pointer to in or out value 65 1.1.1.2.2.2 bouyer * HandlerContext - Pointer to Handler's context 66 1.1.1.2.2.2 bouyer * RegionContext - Pointer to context specific to the 67 1.1.1.2.2.2 bouyer * accessed region 68 1.1.1.2.2.2 bouyer * 69 1.1.1.2.2.2 bouyer * RETURN: Status 70 1.1.1.2.2.2 bouyer * 71 1.1.1.2.2.2 bouyer * DESCRIPTION: Handler for the System Memory address space (Op Region) 72 1.1.1.2.2.2 bouyer * 73 1.1.1.2.2.2 bouyer ******************************************************************************/ 74 1.1.1.2.2.2 bouyer 75 1.1.1.2.2.2 bouyer ACPI_STATUS 76 1.1.1.2.2.2 bouyer AcpiExSystemMemorySpaceHandler ( 77 1.1.1.2.2.2 bouyer UINT32 Function, 78 1.1.1.2.2.2 bouyer ACPI_PHYSICAL_ADDRESS Address, 79 1.1.1.2.2.2 bouyer UINT32 BitWidth, 80 1.1.1.2.2.2 bouyer UINT64 *Value, 81 1.1.1.2.2.2 bouyer void *HandlerContext, 82 1.1.1.2.2.2 bouyer void *RegionContext) 83 1.1.1.2.2.2 bouyer { 84 1.1.1.2.2.2 bouyer ACPI_STATUS Status = AE_OK; 85 1.1.1.2.2.2 bouyer void *LogicalAddrPtr = NULL; 86 1.1.1.2.2.2 bouyer ACPI_MEM_SPACE_CONTEXT *MemInfo = RegionContext; 87 1.1.1.2.2.2 bouyer UINT32 Length; 88 1.1.1.2.2.2 bouyer ACPI_SIZE MapLength; 89 1.1.1.2.2.2 bouyer ACPI_SIZE PageBoundaryMapLength; 90 1.1.1.2.2.2 bouyer #ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED 91 1.1.1.2.2.2 bouyer UINT32 Remainder; 92 1.1.1.2.2.2 bouyer #endif 93 1.1.1.2.2.2 bouyer 94 1.1.1.2.2.2 bouyer 95 1.1.1.2.2.2 bouyer ACPI_FUNCTION_TRACE (ExSystemMemorySpaceHandler); 96 1.1.1.2.2.2 bouyer 97 1.1.1.2.2.2 bouyer 98 1.1.1.2.2.2 bouyer /* Validate and translate the bit width */ 99 1.1.1.2.2.2 bouyer 100 1.1.1.2.2.2 bouyer switch (BitWidth) 101 1.1.1.2.2.2 bouyer { 102 1.1.1.2.2.2 bouyer case 8: 103 1.1.1.2.2.2 bouyer Length = 1; 104 1.1.1.2.2.2 bouyer break; 105 1.1.1.2.2.2 bouyer 106 1.1.1.2.2.2 bouyer case 16: 107 1.1.1.2.2.2 bouyer Length = 2; 108 1.1.1.2.2.2 bouyer break; 109 1.1.1.2.2.2 bouyer 110 1.1.1.2.2.2 bouyer case 32: 111 1.1.1.2.2.2 bouyer Length = 4; 112 1.1.1.2.2.2 bouyer break; 113 1.1.1.2.2.2 bouyer 114 1.1.1.2.2.2 bouyer case 64: 115 1.1.1.2.2.2 bouyer Length = 8; 116 1.1.1.2.2.2 bouyer break; 117 1.1.1.2.2.2 bouyer 118 1.1.1.2.2.2 bouyer default: 119 1.1.1.2.2.2 bouyer ACPI_ERROR ((AE_INFO, "Invalid SystemMemory width %u", 120 1.1.1.2.2.2 bouyer BitWidth)); 121 1.1.1.2.2.2 bouyer return_ACPI_STATUS (AE_AML_OPERAND_VALUE); 122 1.1.1.2.2.2 bouyer } 123 1.1.1.2.2.2 bouyer 124 1.1.1.2.2.2 bouyer #ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED 125 1.1.1.2.2.2 bouyer /* 126 1.1.1.2.2.2 bouyer * Hardware does not support non-aligned data transfers, we must verify 127 1.1.1.2.2.2 bouyer * the request. 128 1.1.1.2.2.2 bouyer */ 129 1.1.1.2.2.2 bouyer (void) AcpiUtShortDivide ((UINT64) Address, Length, NULL, &Remainder); 130 1.1.1.2.2.2 bouyer if (Remainder != 0) 131 1.1.1.2.2.2 bouyer { 132 1.1.1.2.2.2 bouyer return_ACPI_STATUS (AE_AML_ALIGNMENT); 133 1.1.1.2.2.2 bouyer } 134 1.1.1.2.2.2 bouyer #endif 135 1.1.1.2.2.2 bouyer 136 1.1.1.2.2.2 bouyer /* 137 1.1.1.2.2.2 bouyer * Does the request fit into the cached memory mapping? 138 1.1.1.2.2.2 bouyer * Is 1) Address below the current mapping? OR 139 1.1.1.2.2.2 bouyer * 2) Address beyond the current mapping? 140 1.1.1.2.2.2 bouyer */ 141 1.1.1.2.2.2 bouyer if ((Address < MemInfo->MappedPhysicalAddress) || 142 1.1.1.2.2.2 bouyer (((UINT64) Address + Length) > 143 1.1.1.2.2.2 bouyer ((UINT64) 144 1.1.1.2.2.2 bouyer MemInfo->MappedPhysicalAddress + MemInfo->MappedLength))) 145 1.1.1.2.2.2 bouyer { 146 1.1.1.2.2.2 bouyer /* 147 1.1.1.2.2.2 bouyer * The request cannot be resolved by the current memory mapping; 148 1.1.1.2.2.2 bouyer * Delete the existing mapping and create a new one. 149 1.1.1.2.2.2 bouyer */ 150 1.1.1.2.2.2 bouyer if (MemInfo->MappedLength) 151 1.1.1.2.2.2 bouyer { 152 1.1.1.2.2.2 bouyer /* Valid mapping, delete it */ 153 1.1.1.2.2.2 bouyer 154 1.1.1.2.2.2 bouyer AcpiOsUnmapMemory (MemInfo->MappedLogicalAddress, 155 1.1.1.2.2.2 bouyer MemInfo->MappedLength); 156 1.1.1.2.2.2 bouyer } 157 1.1.1.2.2.2 bouyer 158 1.1.1.2.2.2 bouyer /* 159 1.1.1.2.2.2 bouyer * October 2009: Attempt to map from the requested address to the 160 1.1.1.2.2.2 bouyer * end of the region. However, we will never map more than one 161 1.1.1.2.2.2 bouyer * page, nor will we cross a page boundary. 162 1.1.1.2.2.2 bouyer */ 163 1.1.1.2.2.2 bouyer MapLength = (ACPI_SIZE) 164 1.1.1.2.2.2 bouyer ((MemInfo->Address + MemInfo->Length) - Address); 165 1.1.1.2.2.2 bouyer 166 1.1.1.2.2.2 bouyer /* 167 1.1.1.2.2.2 bouyer * If mapping the entire remaining portion of the region will cross 168 1.1.1.2.2.2 bouyer * a page boundary, just map up to the page boundary, do not cross. 169 1.1.1.2.2.2 bouyer * On some systems, crossing a page boundary while mapping regions 170 1.1.1.2.2.2 bouyer * can cause warnings if the pages have different attributes 171 1.1.1.2.2.2 bouyer * due to resource management. 172 1.1.1.2.2.2 bouyer * 173 1.1.1.2.2.2 bouyer * This has the added benefit of constraining a single mapping to 174 1.1.1.2.2.2 bouyer * one page, which is similar to the original code that used a 4k 175 1.1.1.2.2.2 bouyer * maximum window. 176 1.1.1.2.2.2 bouyer */ 177 1.1.1.2.2.2 bouyer PageBoundaryMapLength = 178 1.1.1.2.2.2 bouyer ACPI_ROUND_UP (Address, ACPI_DEFAULT_PAGE_SIZE) - Address; 179 1.1.1.2.2.2 bouyer if (PageBoundaryMapLength == 0) 180 1.1.1.2.2.2 bouyer { 181 1.1.1.2.2.2 bouyer PageBoundaryMapLength = ACPI_DEFAULT_PAGE_SIZE; 182 1.1.1.2.2.2 bouyer } 183 1.1.1.2.2.2 bouyer 184 1.1.1.2.2.2 bouyer if (MapLength > PageBoundaryMapLength) 185 1.1.1.2.2.2 bouyer { 186 1.1.1.2.2.2 bouyer MapLength = PageBoundaryMapLength; 187 1.1.1.2.2.2 bouyer } 188 1.1.1.2.2.2 bouyer 189 1.1.1.2.2.2 bouyer /* Create a new mapping starting at the address given */ 190 1.1.1.2.2.2 bouyer 191 1.1.1.2.2.2 bouyer MemInfo->MappedLogicalAddress = AcpiOsMapMemory ( 192 1.1.1.2.2.2 bouyer (ACPI_PHYSICAL_ADDRESS) Address, MapLength); 193 1.1.1.2.2.2 bouyer if (!MemInfo->MappedLogicalAddress) 194 1.1.1.2.2.2 bouyer { 195 1.1.1.2.2.2 bouyer ACPI_ERROR ((AE_INFO, 196 1.1.1.2.2.2 bouyer "Could not map memory at 0x%8.8X%8.8X, size %u", 197 1.1.1.2.2.2 bouyer ACPI_FORMAT_NATIVE_UINT (Address), (UINT32) MapLength)); 198 1.1.1.2.2.2 bouyer MemInfo->MappedLength = 0; 199 1.1.1.2.2.2 bouyer return_ACPI_STATUS (AE_NO_MEMORY); 200 1.1.1.2.2.2 bouyer } 201 1.1.1.2.2.2 bouyer 202 1.1.1.2.2.2 bouyer /* Save the physical address and mapping size */ 203 1.1.1.2.2.2 bouyer 204 1.1.1.2.2.2 bouyer MemInfo->MappedPhysicalAddress = Address; 205 1.1.1.2.2.2 bouyer MemInfo->MappedLength = MapLength; 206 1.1.1.2.2.2 bouyer } 207 1.1.1.2.2.2 bouyer 208 1.1.1.2.2.2 bouyer /* 209 1.1.1.2.2.2 bouyer * Generate a logical pointer corresponding to the address we want to 210 1.1.1.2.2.2 bouyer * access 211 1.1.1.2.2.2 bouyer */ 212 1.1.1.2.2.2 bouyer LogicalAddrPtr = MemInfo->MappedLogicalAddress + 213 1.1.1.2.2.2 bouyer ((UINT64) Address - (UINT64) MemInfo->MappedPhysicalAddress); 214 1.1.1.2.2.2 bouyer 215 1.1.1.2.2.2 bouyer ACPI_DEBUG_PRINT ((ACPI_DB_INFO, 216 1.1.1.2.2.2 bouyer "System-Memory (width %u) R/W %u Address=%8.8X%8.8X\n", 217 1.1.1.2.2.2 bouyer BitWidth, Function, ACPI_FORMAT_NATIVE_UINT (Address))); 218 1.1.1.2.2.2 bouyer 219 1.1.1.2.2.2 bouyer /* 220 1.1.1.2.2.2 bouyer * Perform the memory read or write 221 1.1.1.2.2.2 bouyer * 222 1.1.1.2.2.2 bouyer * Note: For machines that do not support non-aligned transfers, the target 223 1.1.1.2.2.2 bouyer * address was checked for alignment above. We do not attempt to break the 224 1.1.1.2.2.2 bouyer * transfer up into smaller (byte-size) chunks because the AML specifically 225 1.1.1.2.2.2 bouyer * asked for a transfer width that the hardware may require. 226 1.1.1.2.2.2 bouyer */ 227 1.1.1.2.2.2 bouyer switch (Function) 228 1.1.1.2.2.2 bouyer { 229 1.1.1.2.2.2 bouyer case ACPI_READ: 230 1.1.1.2.2.2 bouyer 231 1.1.1.2.2.2 bouyer *Value = 0; 232 1.1.1.2.2.2 bouyer switch (BitWidth) 233 1.1.1.2.2.2 bouyer { 234 1.1.1.2.2.2 bouyer case 8: 235 1.1.1.2.2.2 bouyer *Value = (UINT64) ACPI_GET8 (LogicalAddrPtr); 236 1.1.1.2.2.2 bouyer break; 237 1.1.1.2.2.2 bouyer 238 1.1.1.2.2.2 bouyer case 16: 239 1.1.1.2.2.2 bouyer *Value = (UINT64) ACPI_GET16 (LogicalAddrPtr); 240 1.1.1.2.2.2 bouyer break; 241 1.1.1.2.2.2 bouyer 242 1.1.1.2.2.2 bouyer case 32: 243 1.1.1.2.2.2 bouyer *Value = (UINT64) ACPI_GET32 (LogicalAddrPtr); 244 1.1.1.2.2.2 bouyer break; 245 1.1.1.2.2.2 bouyer 246 1.1.1.2.2.2 bouyer case 64: 247 1.1.1.2.2.2 bouyer *Value = (UINT64) ACPI_GET64 (LogicalAddrPtr); 248 1.1.1.2.2.2 bouyer break; 249 1.1.1.2.2.2 bouyer 250 1.1.1.2.2.2 bouyer default: 251 1.1.1.2.2.2 bouyer /* BitWidth was already validated */ 252 1.1.1.2.2.2 bouyer break; 253 1.1.1.2.2.2 bouyer } 254 1.1.1.2.2.2 bouyer break; 255 1.1.1.2.2.2 bouyer 256 1.1.1.2.2.2 bouyer case ACPI_WRITE: 257 1.1.1.2.2.2 bouyer 258 1.1.1.2.2.2 bouyer switch (BitWidth) 259 1.1.1.2.2.2 bouyer { 260 1.1.1.2.2.2 bouyer case 8: 261 1.1.1.2.2.2 bouyer ACPI_SET8 (LogicalAddrPtr) = (UINT8) *Value; 262 1.1.1.2.2.2 bouyer break; 263 1.1.1.2.2.2 bouyer 264 1.1.1.2.2.2 bouyer case 16: 265 1.1.1.2.2.2 bouyer ACPI_SET16 (LogicalAddrPtr) = (UINT16) *Value; 266 1.1.1.2.2.2 bouyer break; 267 1.1.1.2.2.2 bouyer 268 1.1.1.2.2.2 bouyer case 32: 269 1.1.1.2.2.2 bouyer ACPI_SET32 ( LogicalAddrPtr) = (UINT32) *Value; 270 1.1.1.2.2.2 bouyer break; 271 1.1.1.2.2.2 bouyer 272 1.1.1.2.2.2 bouyer case 64: 273 1.1.1.2.2.2 bouyer ACPI_SET64 (LogicalAddrPtr) = (UINT64) *Value; 274 1.1.1.2.2.2 bouyer break; 275 1.1.1.2.2.2 bouyer 276 1.1.1.2.2.2 bouyer default: 277 1.1.1.2.2.2 bouyer /* BitWidth was already validated */ 278 1.1.1.2.2.2 bouyer break; 279 1.1.1.2.2.2 bouyer } 280 1.1.1.2.2.2 bouyer break; 281 1.1.1.2.2.2 bouyer 282 1.1.1.2.2.2 bouyer default: 283 1.1.1.2.2.2 bouyer Status = AE_BAD_PARAMETER; 284 1.1.1.2.2.2 bouyer break; 285 1.1.1.2.2.2 bouyer } 286 1.1.1.2.2.2 bouyer 287 1.1.1.2.2.2 bouyer return_ACPI_STATUS (Status); 288 1.1.1.2.2.2 bouyer } 289 1.1.1.2.2.2 bouyer 290 1.1.1.2.2.2 bouyer 291 1.1.1.2.2.2 bouyer /******************************************************************************* 292 1.1.1.2.2.2 bouyer * 293 1.1.1.2.2.2 bouyer * FUNCTION: AcpiExSystemIoSpaceHandler 294 1.1.1.2.2.2 bouyer * 295 1.1.1.2.2.2 bouyer * PARAMETERS: Function - Read or Write operation 296 1.1.1.2.2.2 bouyer * Address - Where in the space to read or write 297 1.1.1.2.2.2 bouyer * BitWidth - Field width in bits (8, 16, or 32) 298 1.1.1.2.2.2 bouyer * Value - Pointer to in or out value 299 1.1.1.2.2.2 bouyer * HandlerContext - Pointer to Handler's context 300 1.1.1.2.2.2 bouyer * RegionContext - Pointer to context specific to the 301 1.1.1.2.2.2 bouyer * accessed region 302 1.1.1.2.2.2 bouyer * 303 1.1.1.2.2.2 bouyer * RETURN: Status 304 1.1.1.2.2.2 bouyer * 305 1.1.1.2.2.2 bouyer * DESCRIPTION: Handler for the System IO address space (Op Region) 306 1.1.1.2.2.2 bouyer * 307 1.1.1.2.2.2 bouyer ******************************************************************************/ 308 1.1.1.2.2.2 bouyer 309 1.1.1.2.2.2 bouyer ACPI_STATUS 310 1.1.1.2.2.2 bouyer AcpiExSystemIoSpaceHandler ( 311 1.1.1.2.2.2 bouyer UINT32 Function, 312 1.1.1.2.2.2 bouyer ACPI_PHYSICAL_ADDRESS Address, 313 1.1.1.2.2.2 bouyer UINT32 BitWidth, 314 1.1.1.2.2.2 bouyer UINT64 *Value, 315 1.1.1.2.2.2 bouyer void *HandlerContext, 316 1.1.1.2.2.2 bouyer void *RegionContext) 317 1.1.1.2.2.2 bouyer { 318 1.1.1.2.2.2 bouyer ACPI_STATUS Status = AE_OK; 319 1.1.1.2.2.2 bouyer UINT32 Value32; 320 1.1.1.2.2.2 bouyer 321 1.1.1.2.2.2 bouyer 322 1.1.1.2.2.2 bouyer ACPI_FUNCTION_TRACE (ExSystemIoSpaceHandler); 323 1.1.1.2.2.2 bouyer 324 1.1.1.2.2.2 bouyer 325 1.1.1.2.2.2 bouyer ACPI_DEBUG_PRINT ((ACPI_DB_INFO, 326 1.1.1.2.2.2 bouyer "System-IO (width %u) R/W %u Address=%8.8X%8.8X\n", 327 1.1.1.2.2.2 bouyer BitWidth, Function, ACPI_FORMAT_NATIVE_UINT (Address))); 328 1.1.1.2.2.2 bouyer 329 1.1.1.2.2.2 bouyer /* Decode the function parameter */ 330 1.1.1.2.2.2 bouyer 331 1.1.1.2.2.2 bouyer switch (Function) 332 1.1.1.2.2.2 bouyer { 333 1.1.1.2.2.2 bouyer case ACPI_READ: 334 1.1.1.2.2.2 bouyer 335 1.1.1.2.2.2 bouyer Status = AcpiHwReadPort ((ACPI_IO_ADDRESS) Address, 336 1.1.1.2.2.2 bouyer &Value32, BitWidth); 337 1.1.1.2.2.2 bouyer *Value = Value32; 338 1.1.1.2.2.2 bouyer break; 339 1.1.1.2.2.2 bouyer 340 1.1.1.2.2.2 bouyer case ACPI_WRITE: 341 1.1.1.2.2.2 bouyer 342 1.1.1.2.2.2 bouyer Status = AcpiHwWritePort ((ACPI_IO_ADDRESS) Address, 343 1.1.1.2.2.2 bouyer (UINT32) *Value, BitWidth); 344 1.1.1.2.2.2 bouyer break; 345 1.1.1.2.2.2 bouyer 346 1.1.1.2.2.2 bouyer default: 347 1.1.1.2.2.2 bouyer Status = AE_BAD_PARAMETER; 348 1.1.1.2.2.2 bouyer break; 349 1.1.1.2.2.2 bouyer } 350 1.1.1.2.2.2 bouyer 351 1.1.1.2.2.2 bouyer return_ACPI_STATUS (Status); 352 1.1.1.2.2.2 bouyer } 353 1.1.1.2.2.2 bouyer 354 1.1.1.2.2.2 bouyer 355 1.1.1.2.2.2 bouyer /******************************************************************************* 356 1.1.1.2.2.2 bouyer * 357 1.1.1.2.2.2 bouyer * FUNCTION: AcpiExPciConfigSpaceHandler 358 1.1.1.2.2.2 bouyer * 359 1.1.1.2.2.2 bouyer * PARAMETERS: Function - Read or Write operation 360 1.1.1.2.2.2 bouyer * Address - Where in the space to read or write 361 1.1.1.2.2.2 bouyer * BitWidth - Field width in bits (8, 16, or 32) 362 1.1.1.2.2.2 bouyer * Value - Pointer to in or out value 363 1.1.1.2.2.2 bouyer * HandlerContext - Pointer to Handler's context 364 1.1.1.2.2.2 bouyer * RegionContext - Pointer to context specific to the 365 1.1.1.2.2.2 bouyer * accessed region 366 1.1.1.2.2.2 bouyer * 367 1.1.1.2.2.2 bouyer * RETURN: Status 368 1.1.1.2.2.2 bouyer * 369 1.1.1.2.2.2 bouyer * DESCRIPTION: Handler for the PCI Config address space (Op Region) 370 1.1.1.2.2.2 bouyer * 371 1.1.1.2.2.2 bouyer ******************************************************************************/ 372 1.1.1.2.2.2 bouyer 373 1.1.1.2.2.2 bouyer ACPI_STATUS 374 1.1.1.2.2.2 bouyer AcpiExPciConfigSpaceHandler ( 375 1.1.1.2.2.2 bouyer UINT32 Function, 376 1.1.1.2.2.2 bouyer ACPI_PHYSICAL_ADDRESS Address, 377 1.1.1.2.2.2 bouyer UINT32 BitWidth, 378 1.1.1.2.2.2 bouyer UINT64 *Value, 379 1.1.1.2.2.2 bouyer void *HandlerContext, 380 1.1.1.2.2.2 bouyer void *RegionContext) 381 1.1.1.2.2.2 bouyer { 382 1.1.1.2.2.2 bouyer ACPI_STATUS Status = AE_OK; 383 1.1.1.2.2.2 bouyer ACPI_PCI_ID *PciId; 384 1.1.1.2.2.2 bouyer UINT16 PciRegister; 385 1.1.1.2.2.2 bouyer 386 1.1.1.2.2.2 bouyer 387 1.1.1.2.2.2 bouyer ACPI_FUNCTION_TRACE (ExPciConfigSpaceHandler); 388 1.1.1.2.2.2 bouyer 389 1.1.1.2.2.2 bouyer 390 1.1.1.2.2.2 bouyer /* 391 1.1.1.2.2.2 bouyer * The arguments to AcpiOs(Read|Write)PciConfiguration are: 392 1.1.1.2.2.2 bouyer * 393 1.1.1.2.2.2 bouyer * PciSegment is the PCI bus segment range 0-31 394 1.1.1.2.2.2 bouyer * PciBus is the PCI bus number range 0-255 395 1.1.1.2.2.2 bouyer * PciDevice is the PCI device number range 0-31 396 1.1.1.2.2.2 bouyer * PciFunction is the PCI device function number 397 1.1.1.2.2.2 bouyer * PciRegister is the Config space register range 0-255 bytes 398 1.1.1.2.2.2 bouyer * 399 1.1.1.2.2.2 bouyer * Value - input value for write, output address for read 400 1.1.1.2.2.2 bouyer * 401 1.1.1.2.2.2 bouyer */ 402 1.1.1.2.2.2 bouyer PciId = (ACPI_PCI_ID *) RegionContext; 403 1.1.1.2.2.2 bouyer PciRegister = (UINT16) (UINT32) Address; 404 1.1.1.2.2.2 bouyer 405 1.1.1.2.2.2 bouyer ACPI_DEBUG_PRINT ((ACPI_DB_INFO, 406 1.1.1.2.2.2 bouyer "Pci-Config %u (%u) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n", 407 1.1.1.2.2.2 bouyer Function, BitWidth, PciId->Segment, PciId->Bus, PciId->Device, 408 1.1.1.2.2.2 bouyer PciId->Function, PciRegister)); 409 1.1.1.2.2.2 bouyer 410 1.1.1.2.2.2 bouyer switch (Function) 411 1.1.1.2.2.2 bouyer { 412 1.1.1.2.2.2 bouyer case ACPI_READ: 413 1.1.1.2.2.2 bouyer 414 1.1.1.2.2.2 bouyer *Value = 0; 415 1.1.1.2.2.2 bouyer Status = AcpiOsReadPciConfiguration (PciId, PciRegister, 416 1.1.1.2.2.2 bouyer Value, BitWidth); 417 1.1.1.2.2.2 bouyer break; 418 1.1.1.2.2.2 bouyer 419 1.1.1.2.2.2 bouyer case ACPI_WRITE: 420 1.1.1.2.2.2 bouyer 421 1.1.1.2.2.2 bouyer Status = AcpiOsWritePciConfiguration (PciId, PciRegister, 422 1.1.1.2.2.2 bouyer *Value, BitWidth); 423 1.1.1.2.2.2 bouyer break; 424 1.1.1.2.2.2 bouyer 425 1.1.1.2.2.2 bouyer default: 426 1.1.1.2.2.2 bouyer 427 1.1.1.2.2.2 bouyer Status = AE_BAD_PARAMETER; 428 1.1.1.2.2.2 bouyer break; 429 1.1.1.2.2.2 bouyer } 430 1.1.1.2.2.2 bouyer 431 1.1.1.2.2.2 bouyer return_ACPI_STATUS (Status); 432 1.1.1.2.2.2 bouyer } 433 1.1.1.2.2.2 bouyer 434 1.1.1.2.2.2 bouyer 435 1.1.1.2.2.2 bouyer /******************************************************************************* 436 1.1.1.2.2.2 bouyer * 437 1.1.1.2.2.2 bouyer * FUNCTION: AcpiExCmosSpaceHandler 438 1.1.1.2.2.2 bouyer * 439 1.1.1.2.2.2 bouyer * PARAMETERS: Function - Read or Write operation 440 1.1.1.2.2.2 bouyer * Address - Where in the space to read or write 441 1.1.1.2.2.2 bouyer * BitWidth - Field width in bits (8, 16, or 32) 442 1.1.1.2.2.2 bouyer * Value - Pointer to in or out value 443 1.1.1.2.2.2 bouyer * HandlerContext - Pointer to Handler's context 444 1.1.1.2.2.2 bouyer * RegionContext - Pointer to context specific to the 445 1.1.1.2.2.2 bouyer * accessed region 446 1.1.1.2.2.2 bouyer * 447 1.1.1.2.2.2 bouyer * RETURN: Status 448 1.1.1.2.2.2 bouyer * 449 1.1.1.2.2.2 bouyer * DESCRIPTION: Handler for the CMOS address space (Op Region) 450 1.1.1.2.2.2 bouyer * 451 1.1.1.2.2.2 bouyer ******************************************************************************/ 452 1.1.1.2.2.2 bouyer 453 1.1.1.2.2.2 bouyer ACPI_STATUS 454 1.1.1.2.2.2 bouyer AcpiExCmosSpaceHandler ( 455 1.1.1.2.2.2 bouyer UINT32 Function, 456 1.1.1.2.2.2 bouyer ACPI_PHYSICAL_ADDRESS Address, 457 1.1.1.2.2.2 bouyer UINT32 BitWidth, 458 1.1.1.2.2.2 bouyer UINT64 *Value, 459 1.1.1.2.2.2 bouyer void *HandlerContext, 460 1.1.1.2.2.2 bouyer void *RegionContext) 461 1.1.1.2.2.2 bouyer { 462 1.1.1.2.2.2 bouyer ACPI_STATUS Status = AE_OK; 463 1.1.1.2.2.2 bouyer 464 1.1.1.2.2.2 bouyer 465 1.1.1.2.2.2 bouyer ACPI_FUNCTION_TRACE (ExCmosSpaceHandler); 466 1.1.1.2.2.2 bouyer 467 1.1.1.2.2.2 bouyer 468 1.1.1.2.2.2 bouyer return_ACPI_STATUS (Status); 469 1.1.1.2.2.2 bouyer } 470 1.1.1.2.2.2 bouyer 471 1.1.1.2.2.2 bouyer 472 1.1.1.2.2.2 bouyer /******************************************************************************* 473 1.1.1.2.2.2 bouyer * 474 1.1.1.2.2.2 bouyer * FUNCTION: AcpiExPciBarSpaceHandler 475 1.1.1.2.2.2 bouyer * 476 1.1.1.2.2.2 bouyer * PARAMETERS: Function - Read or Write operation 477 1.1.1.2.2.2 bouyer * Address - Where in the space to read or write 478 1.1.1.2.2.2 bouyer * BitWidth - Field width in bits (8, 16, or 32) 479 1.1.1.2.2.2 bouyer * Value - Pointer to in or out value 480 1.1.1.2.2.2 bouyer * HandlerContext - Pointer to Handler's context 481 1.1.1.2.2.2 bouyer * RegionContext - Pointer to context specific to the 482 1.1.1.2.2.2 bouyer * accessed region 483 1.1.1.2.2.2 bouyer * 484 1.1.1.2.2.2 bouyer * RETURN: Status 485 1.1.1.2.2.2 bouyer * 486 1.1.1.2.2.2 bouyer * DESCRIPTION: Handler for the PCI BarTarget address space (Op Region) 487 1.1.1.2.2.2 bouyer * 488 1.1.1.2.2.2 bouyer ******************************************************************************/ 489 1.1.1.2.2.2 bouyer 490 1.1.1.2.2.2 bouyer ACPI_STATUS 491 1.1.1.2.2.2 bouyer AcpiExPciBarSpaceHandler ( 492 1.1.1.2.2.2 bouyer UINT32 Function, 493 1.1.1.2.2.2 bouyer ACPI_PHYSICAL_ADDRESS Address, 494 1.1.1.2.2.2 bouyer UINT32 BitWidth, 495 1.1.1.2.2.2 bouyer UINT64 *Value, 496 1.1.1.2.2.2 bouyer void *HandlerContext, 497 1.1.1.2.2.2 bouyer void *RegionContext) 498 1.1.1.2.2.2 bouyer { 499 1.1.1.2.2.2 bouyer ACPI_STATUS Status = AE_OK; 500 1.1.1.2.2.2 bouyer 501 1.1.1.2.2.2 bouyer 502 1.1.1.2.2.2 bouyer ACPI_FUNCTION_TRACE (ExPciBarSpaceHandler); 503 1.1.1.2.2.2 bouyer 504 1.1.1.2.2.2 bouyer 505 1.1.1.2.2.2 bouyer return_ACPI_STATUS (Status); 506 1.1.1.2.2.2 bouyer } 507 1.1.1.2.2.2 bouyer 508 1.1.1.2.2.2 bouyer 509 1.1.1.2.2.2 bouyer /******************************************************************************* 510 1.1.1.2.2.2 bouyer * 511 1.1.1.2.2.2 bouyer * FUNCTION: AcpiExDataTableSpaceHandler 512 1.1.1.2.2.2 bouyer * 513 1.1.1.2.2.2 bouyer * PARAMETERS: Function - Read or Write operation 514 1.1.1.2.2.2 bouyer * Address - Where in the space to read or write 515 1.1.1.2.2.2 bouyer * BitWidth - Field width in bits (8, 16, or 32) 516 1.1.1.2.2.2 bouyer * Value - Pointer to in or out value 517 1.1.1.2.2.2 bouyer * HandlerContext - Pointer to Handler's context 518 1.1.1.2.2.2 bouyer * RegionContext - Pointer to context specific to the 519 1.1.1.2.2.2 bouyer * accessed region 520 1.1.1.2.2.2 bouyer * 521 1.1.1.2.2.2 bouyer * RETURN: Status 522 1.1.1.2.2.2 bouyer * 523 1.1.1.2.2.2 bouyer * DESCRIPTION: Handler for the Data Table address space (Op Region) 524 1.1.1.2.2.2 bouyer * 525 1.1.1.2.2.2 bouyer ******************************************************************************/ 526 1.1.1.2.2.2 bouyer 527 1.1.1.2.2.2 bouyer ACPI_STATUS 528 1.1.1.2.2.2 bouyer AcpiExDataTableSpaceHandler ( 529 1.1.1.2.2.2 bouyer UINT32 Function, 530 1.1.1.2.2.2 bouyer ACPI_PHYSICAL_ADDRESS Address, 531 1.1.1.2.2.2 bouyer UINT32 BitWidth, 532 1.1.1.2.2.2 bouyer UINT64 *Value, 533 1.1.1.2.2.2 bouyer void *HandlerContext, 534 1.1.1.2.2.2 bouyer void *RegionContext) 535 1.1.1.2.2.2 bouyer { 536 1.1.1.2.2.2 bouyer ACPI_FUNCTION_TRACE (ExDataTableSpaceHandler); 537 1.1.1.2.2.2 bouyer 538 1.1.1.2.2.2 bouyer 539 1.1.1.2.2.2 bouyer /* 540 1.1.1.2.2.2 bouyer * Perform the memory read or write. The BitWidth was already 541 1.1.1.2.2.2 bouyer * validated. 542 1.1.1.2.2.2 bouyer */ 543 1.1.1.2.2.2 bouyer switch (Function) 544 1.1.1.2.2.2 bouyer { 545 1.1.1.2.2.2 bouyer case ACPI_READ: 546 1.1.1.2.2.2 bouyer 547 1.1.1.2.2.2 bouyer ACPI_MEMCPY (ACPI_CAST_PTR (char, Value), ACPI_PHYSADDR_TO_PTR (Address), 548 1.1.1.2.2.2 bouyer ACPI_DIV_8 (BitWidth)); 549 1.1.1.2.2.2 bouyer break; 550 1.1.1.2.2.2 bouyer 551 1.1.1.2.2.2 bouyer case ACPI_WRITE: 552 1.1.1.2.2.2 bouyer 553 1.1.1.2.2.2 bouyer ACPI_MEMCPY (ACPI_PHYSADDR_TO_PTR (Address), ACPI_CAST_PTR (char, Value), 554 1.1.1.2.2.2 bouyer ACPI_DIV_8 (BitWidth)); 555 1.1.1.2.2.2 bouyer break; 556 1.1.1.2.2.2 bouyer 557 1.1.1.2.2.2 bouyer default: 558 1.1.1.2.2.2 bouyer 559 1.1.1.2.2.2 bouyer return_ACPI_STATUS (AE_BAD_PARAMETER); 560 1.1.1.2.2.2 bouyer } 561 1.1.1.2.2.2 bouyer 562 1.1.1.2.2.2 bouyer return_ACPI_STATUS (AE_OK); 563 1.1.1.2.2.2 bouyer } 564 1.1.1.2.2.2 bouyer 565 1.1.1.2.2.2 bouyer 566
Indexes created Sun Oct 19 02:09:48 GMT 2025