Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | |
| 2 | /****************************************************************************** |
| 3 | * |
| 4 | * Module Name: exstore - AML Interpreter object store support |
| 5 | * |
| 6 | *****************************************************************************/ |
| 7 | |
| 8 | /* |
Bob Moore | 4a90c7e | 2006-01-13 16:22:00 -0500 | [diff] [blame] | 9 | * Copyright (C) 2000 - 2006, R. Byron Moore |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | * All rights reserved. |
| 11 | * |
| 12 | * Redistribution and use in source and binary forms, with or without |
| 13 | * modification, are permitted provided that the following conditions |
| 14 | * are met: |
| 15 | * 1. Redistributions of source code must retain the above copyright |
| 16 | * notice, this list of conditions, and the following disclaimer, |
| 17 | * without modification. |
| 18 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 19 | * substantially similar to the "NO WARRANTY" disclaimer below |
| 20 | * ("Disclaimer") and any redistribution must be conditioned upon |
| 21 | * including a substantially similar Disclaimer requirement for further |
| 22 | * binary redistribution. |
| 23 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 24 | * of any contributors may be used to endorse or promote products derived |
| 25 | * from this software without specific prior written permission. |
| 26 | * |
| 27 | * Alternatively, this software may be distributed under the terms of the |
| 28 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 29 | * Software Foundation. |
| 30 | * |
| 31 | * NO WARRANTY |
| 32 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 33 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 34 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| 35 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 36 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 37 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 38 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 39 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 40 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 41 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 42 | * POSSIBILITY OF SUCH DAMAGES. |
| 43 | */ |
| 44 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | #include <acpi/acpi.h> |
| 46 | #include <acpi/acdispat.h> |
| 47 | #include <acpi/acinterp.h> |
| 48 | #include <acpi/amlcode.h> |
| 49 | #include <acpi/acnamesp.h> |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 50 | #include <acpi/acparser.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | #define _COMPONENT ACPI_EXECUTER |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 53 | ACPI_MODULE_NAME("exstore") |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 55 | /* Local prototypes */ |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 56 | static void |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 57 | acpi_ex_do_debug_object(union acpi_operand_object *source_desc, |
| 58 | u32 level, u32 index); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 59 | |
| 60 | static acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 61 | acpi_ex_store_object_to_index(union acpi_operand_object *val_desc, |
| 62 | union acpi_operand_object *dest_desc, |
| 63 | struct acpi_walk_state *walk_state); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 64 | |
| 65 | /******************************************************************************* |
| 66 | * |
| 67 | * FUNCTION: acpi_ex_do_debug_object |
| 68 | * |
| 69 | * PARAMETERS: source_desc - Value to be stored |
| 70 | * Level - Indentation level (used for packages) |
| 71 | * Index - Current package element, zero if not pkg |
| 72 | * |
| 73 | * RETURN: None |
| 74 | * |
| 75 | * DESCRIPTION: Handles stores to the Debug Object. |
| 76 | * |
| 77 | ******************************************************************************/ |
| 78 | |
| 79 | static void |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 80 | acpi_ex_do_debug_object(union acpi_operand_object *source_desc, |
| 81 | u32 level, u32 index) |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 82 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 83 | u32 i; |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 84 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 85 | ACPI_FUNCTION_TRACE_PTR("ex_do_debug_object", source_desc); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 86 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 87 | ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[ACPI Debug] %*s", |
| 88 | level, " ")); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 89 | |
| 90 | /* Display index for package output only */ |
| 91 | |
| 92 | if (index > 0) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 93 | ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, |
| 94 | "(%.2u) ", index - 1)); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 95 | } |
| 96 | |
| 97 | if (!source_desc) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 98 | ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "<Null Object>\n")); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 99 | return_VOID; |
| 100 | } |
| 101 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 102 | if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) { |
| 103 | ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%s: ", |
| 104 | acpi_ut_get_object_type_name |
| 105 | (source_desc))); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 106 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 107 | if (!acpi_ut_valid_internal_object(source_desc)) { |
| 108 | ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, |
| 109 | "%p, Invalid Internal Object!\n", |
| 110 | source_desc)); |
| 111 | return_VOID; |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 112 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 113 | } else if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == |
| 114 | ACPI_DESC_TYPE_NAMED) { |
| 115 | ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%s: %p\n", |
| 116 | acpi_ut_get_type_name(((struct |
| 117 | acpi_namespace_node |
| 118 | *)source_desc)-> |
| 119 | type), |
| 120 | source_desc)); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 121 | return_VOID; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 122 | } else { |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 123 | return_VOID; |
| 124 | } |
| 125 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 126 | switch (ACPI_GET_OBJECT_TYPE(source_desc)) { |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 127 | case ACPI_TYPE_INTEGER: |
| 128 | |
| 129 | /* Output correct integer width */ |
| 130 | |
| 131 | if (acpi_gbl_integer_byte_width == 4) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 132 | ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "0x%8.8X\n", |
| 133 | (u32) source_desc->integer. |
| 134 | value)); |
| 135 | } else { |
| 136 | ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, |
| 137 | "0x%8.8X%8.8X\n", |
| 138 | ACPI_FORMAT_UINT64(source_desc-> |
| 139 | integer. |
| 140 | value))); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 141 | } |
| 142 | break; |
| 143 | |
| 144 | case ACPI_TYPE_BUFFER: |
| 145 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 146 | ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[0x%.2X]\n", |
| 147 | (u32) source_desc->buffer.length)); |
| 148 | ACPI_DUMP_BUFFER(source_desc->buffer.pointer, |
| 149 | (source_desc->buffer.length < |
| 150 | 32) ? source_desc->buffer.length : 32); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 151 | break; |
| 152 | |
| 153 | case ACPI_TYPE_STRING: |
| 154 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 155 | ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[0x%.2X] \"%s\"\n", |
| 156 | source_desc->string.length, |
| 157 | source_desc->string.pointer)); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 158 | break; |
| 159 | |
| 160 | case ACPI_TYPE_PACKAGE: |
| 161 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 162 | ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, |
| 163 | "[0x%.2X Elements]\n", |
| 164 | source_desc->package.count)); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 165 | |
| 166 | /* Output the entire contents of the package */ |
| 167 | |
| 168 | for (i = 0; i < source_desc->package.count; i++) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 169 | acpi_ex_do_debug_object(source_desc->package. |
| 170 | elements[i], level + 4, i + 1); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 171 | } |
| 172 | break; |
| 173 | |
| 174 | case ACPI_TYPE_LOCAL_REFERENCE: |
| 175 | |
| 176 | if (source_desc->reference.opcode == AML_INDEX_OP) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 177 | ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, |
| 178 | "[%s, 0x%X]\n", |
| 179 | acpi_ps_get_opcode_name |
| 180 | (source_desc->reference.opcode), |
| 181 | source_desc->reference.offset)); |
| 182 | } else { |
| 183 | ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[%s]\n", |
| 184 | acpi_ps_get_opcode_name |
| 185 | (source_desc->reference.opcode))); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 186 | } |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 187 | |
| 188 | if (source_desc->reference.object) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 189 | if (ACPI_GET_DESCRIPTOR_TYPE |
| 190 | (source_desc->reference.object) == |
| 191 | ACPI_DESC_TYPE_NAMED) { |
| 192 | acpi_ex_do_debug_object(((struct |
| 193 | acpi_namespace_node *) |
| 194 | source_desc->reference. |
| 195 | object)->object, |
| 196 | level + 4, 0); |
| 197 | } else { |
| 198 | acpi_ex_do_debug_object(source_desc->reference. |
| 199 | object, level + 4, 0); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 200 | } |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 201 | } else if (source_desc->reference.node) { |
| 202 | acpi_ex_do_debug_object((source_desc->reference.node)-> |
| 203 | object, level + 4, 0); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 204 | } |
| 205 | break; |
| 206 | |
| 207 | default: |
| 208 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 209 | ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%p %s\n", |
| 210 | source_desc, |
| 211 | acpi_ut_get_object_type_name |
| 212 | (source_desc))); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 213 | break; |
| 214 | } |
| 215 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 216 | ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "\n")); |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 217 | return_VOID; |
| 218 | } |
| 219 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | /******************************************************************************* |
| 221 | * |
| 222 | * FUNCTION: acpi_ex_store |
| 223 | * |
| 224 | * PARAMETERS: *source_desc - Value to be stored |
| 225 | * *dest_desc - Where to store it. Must be an NS node |
| 226 | * or an union acpi_operand_object of type |
| 227 | * Reference; |
| 228 | * walk_state - Current walk state |
| 229 | * |
| 230 | * RETURN: Status |
| 231 | * |
| 232 | * DESCRIPTION: Store the value described by source_desc into the location |
| 233 | * described by dest_desc. Called by various interpreter |
| 234 | * functions to store the result of an operation into |
| 235 | * the destination operand -- not just simply the actual "Store" |
| 236 | * ASL operator. |
| 237 | * |
| 238 | ******************************************************************************/ |
| 239 | |
| 240 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 241 | acpi_ex_store(union acpi_operand_object *source_desc, |
| 242 | union acpi_operand_object *dest_desc, |
| 243 | struct acpi_walk_state *walk_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 245 | acpi_status status = AE_OK; |
| 246 | union acpi_operand_object *ref_desc = dest_desc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 248 | ACPI_FUNCTION_TRACE_PTR("ex_store", dest_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | |
| 250 | /* Validate parameters */ |
| 251 | |
| 252 | if (!source_desc || !dest_desc) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 253 | ACPI_ERROR((AE_INFO, "Null parameter")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 254 | return_ACPI_STATUS(AE_AML_NO_OPERAND); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | } |
| 256 | |
| 257 | /* dest_desc can be either a namespace node or an ACPI object */ |
| 258 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 259 | if (ACPI_GET_DESCRIPTOR_TYPE(dest_desc) == ACPI_DESC_TYPE_NAMED) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | /* |
| 261 | * Dest is a namespace node, |
| 262 | * Storing an object into a Named node. |
| 263 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 264 | status = acpi_ex_store_object_to_node(source_desc, |
| 265 | (struct |
| 266 | acpi_namespace_node *) |
| 267 | dest_desc, walk_state, |
| 268 | ACPI_IMPLICIT_CONVERSION); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 270 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | } |
| 272 | |
| 273 | /* Destination object must be a Reference or a Constant object */ |
| 274 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 275 | switch (ACPI_GET_OBJECT_TYPE(dest_desc)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | case ACPI_TYPE_LOCAL_REFERENCE: |
| 277 | break; |
| 278 | |
| 279 | case ACPI_TYPE_INTEGER: |
| 280 | |
| 281 | /* Allow stores to Constants -- a Noop as per ACPI spec */ |
| 282 | |
| 283 | if (dest_desc->common.flags & AOPOBJ_AML_CONSTANT) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 284 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | } |
| 286 | |
| 287 | /*lint -fallthrough */ |
| 288 | |
| 289 | default: |
| 290 | |
| 291 | /* Destination is not a Reference object */ |
| 292 | |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 293 | ACPI_ERROR((AE_INFO, |
| 294 | "Target is not a Reference or Constant object - %s [%p]", |
| 295 | acpi_ut_get_object_type_name(dest_desc), |
| 296 | dest_desc)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 298 | ACPI_DUMP_STACK_ENTRY(source_desc); |
| 299 | ACPI_DUMP_STACK_ENTRY(dest_desc); |
| 300 | ACPI_DUMP_OPERANDS(&dest_desc, ACPI_IMODE_EXECUTE, "ex_store", |
| 301 | 2, |
| 302 | "Target is not a Reference or Constant object"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 304 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | } |
| 306 | |
| 307 | /* |
| 308 | * Examine the Reference opcode. These cases are handled: |
| 309 | * |
| 310 | * 1) Store to Name (Change the object associated with a name) |
| 311 | * 2) Store to an indexed area of a Buffer or Package |
| 312 | * 3) Store to a Method Local or Arg |
| 313 | * 4) Store to the debug object |
| 314 | */ |
| 315 | switch (ref_desc->reference.opcode) { |
| 316 | case AML_NAME_OP: |
| 317 | case AML_REF_OF_OP: |
| 318 | |
| 319 | /* Storing an object into a Name "container" */ |
| 320 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 321 | status = acpi_ex_store_object_to_node(source_desc, |
| 322 | ref_desc->reference. |
| 323 | object, walk_state, |
| 324 | ACPI_IMPLICIT_CONVERSION); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | break; |
| 326 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | case AML_INDEX_OP: |
| 328 | |
| 329 | /* Storing to an Index (pointer into a packager or buffer) */ |
| 330 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 331 | status = |
| 332 | acpi_ex_store_object_to_index(source_desc, ref_desc, |
| 333 | walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | break; |
| 335 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | case AML_LOCAL_OP: |
| 337 | case AML_ARG_OP: |
| 338 | |
| 339 | /* Store to a method local/arg */ |
| 340 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 341 | status = |
| 342 | acpi_ds_store_object_to_local(ref_desc->reference.opcode, |
| 343 | ref_desc->reference.offset, |
| 344 | source_desc, walk_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | break; |
| 346 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | case AML_DEBUG_OP: |
| 348 | |
| 349 | /* |
| 350 | * Storing to the Debug object causes the value stored to be |
| 351 | * displayed and otherwise has no effect -- see ACPI Specification |
| 352 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 353 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 354 | "**** Write to Debug Object: Object %p %s ****:\n\n", |
| 355 | source_desc, |
| 356 | acpi_ut_get_object_type_name(source_desc))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 358 | acpi_ex_do_debug_object(source_desc, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | break; |
| 360 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | default: |
| 362 | |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 363 | ACPI_ERROR((AE_INFO, "Unknown Reference opcode %X", |
| 364 | ref_desc->reference.opcode)); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 365 | ACPI_DUMP_ENTRY(ref_desc, ACPI_LV_ERROR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | |
| 367 | status = AE_AML_INTERNAL; |
| 368 | break; |
| 369 | } |
| 370 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 371 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | } |
| 373 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | /******************************************************************************* |
| 375 | * |
| 376 | * FUNCTION: acpi_ex_store_object_to_index |
| 377 | * |
| 378 | * PARAMETERS: *source_desc - Value to be stored |
| 379 | * *dest_desc - Named object to receive the value |
| 380 | * walk_state - Current walk state |
| 381 | * |
| 382 | * RETURN: Status |
| 383 | * |
| 384 | * DESCRIPTION: Store the object to indexed Buffer or Package element |
| 385 | * |
| 386 | ******************************************************************************/ |
| 387 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 388 | static acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 389 | acpi_ex_store_object_to_index(union acpi_operand_object *source_desc, |
| 390 | union acpi_operand_object *index_desc, |
| 391 | struct acpi_walk_state *walk_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 393 | acpi_status status = AE_OK; |
| 394 | union acpi_operand_object *obj_desc; |
| 395 | union acpi_operand_object *new_desc; |
| 396 | u8 value = 0; |
| 397 | u32 i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 399 | ACPI_FUNCTION_TRACE("ex_store_object_to_index"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | |
| 401 | /* |
| 402 | * Destination must be a reference pointer, and |
| 403 | * must point to either a buffer or a package |
| 404 | */ |
| 405 | switch (index_desc->reference.target_type) { |
| 406 | case ACPI_TYPE_PACKAGE: |
| 407 | /* |
| 408 | * Storing to a package element. Copy the object and replace |
| 409 | * any existing object with the new object. No implicit |
| 410 | * conversion is performed. |
| 411 | * |
| 412 | * The object at *(index_desc->Reference.Where) is the |
| 413 | * element within the package that is to be modified. |
| 414 | * The parent package object is at index_desc->Reference.Object |
| 415 | */ |
| 416 | obj_desc = *(index_desc->reference.where); |
| 417 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 418 | status = |
| 419 | acpi_ut_copy_iobject_to_iobject(source_desc, &new_desc, |
| 420 | walk_state); |
| 421 | if (ACPI_FAILURE(status)) { |
| 422 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | } |
| 424 | |
| 425 | if (obj_desc) { |
| 426 | /* Decrement reference count by the ref count of the parent package */ |
| 427 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 428 | for (i = 0; i < ((union acpi_operand_object *) |
| 429 | index_desc->reference.object)->common. |
| 430 | reference_count; i++) { |
| 431 | acpi_ut_remove_reference(obj_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | } |
| 433 | } |
| 434 | |
| 435 | *(index_desc->reference.where) = new_desc; |
| 436 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 437 | /* Increment ref count by the ref count of the parent package-1 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 439 | for (i = 1; i < ((union acpi_operand_object *) |
| 440 | index_desc->reference.object)->common. |
| 441 | reference_count; i++) { |
| 442 | acpi_ut_add_reference(new_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | } |
| 444 | |
| 445 | break; |
| 446 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | case ACPI_TYPE_BUFFER_FIELD: |
| 448 | |
| 449 | /* |
| 450 | * Store into a Buffer or String (not actually a real buffer_field) |
| 451 | * at a location defined by an Index. |
| 452 | * |
| 453 | * The first 8-bit element of the source object is written to the |
| 454 | * 8-bit Buffer location defined by the Index destination object, |
| 455 | * according to the ACPI 2.0 specification. |
| 456 | */ |
| 457 | |
| 458 | /* |
| 459 | * Make sure the target is a Buffer or String. An error should |
| 460 | * not happen here, since the reference_object was constructed |
| 461 | * by the INDEX_OP code. |
| 462 | */ |
| 463 | obj_desc = index_desc->reference.object; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 464 | if ((ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_BUFFER) && |
| 465 | (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_STRING)) { |
| 466 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | } |
| 468 | |
| 469 | /* |
| 470 | * The assignment of the individual elements will be slightly |
| 471 | * different for each source type. |
| 472 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 473 | switch (ACPI_GET_OBJECT_TYPE(source_desc)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | case ACPI_TYPE_INTEGER: |
| 475 | |
| 476 | /* Use the least-significant byte of the integer */ |
| 477 | |
| 478 | value = (u8) (source_desc->integer.value); |
| 479 | break; |
| 480 | |
| 481 | case ACPI_TYPE_BUFFER: |
| 482 | case ACPI_TYPE_STRING: |
| 483 | |
| 484 | /* Note: Takes advantage of common string/buffer fields */ |
| 485 | |
| 486 | value = source_desc->buffer.pointer[0]; |
| 487 | break; |
| 488 | |
| 489 | default: |
| 490 | |
| 491 | /* All other types are invalid */ |
| 492 | |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 493 | ACPI_ERROR((AE_INFO, |
| 494 | "Source must be Integer/Buffer/String type, not %s", |
| 495 | acpi_ut_get_object_type_name(source_desc))); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 496 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | } |
| 498 | |
| 499 | /* Store the source value into the target buffer byte */ |
| 500 | |
| 501 | obj_desc->buffer.pointer[index_desc->reference.offset] = value; |
| 502 | break; |
| 503 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | default: |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 505 | ACPI_ERROR((AE_INFO, |
| 506 | "Target is not a Package or buffer_field")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | status = AE_AML_OPERAND_TYPE; |
| 508 | break; |
| 509 | } |
| 510 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 511 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | } |
| 513 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | /******************************************************************************* |
| 515 | * |
| 516 | * FUNCTION: acpi_ex_store_object_to_node |
| 517 | * |
| 518 | * PARAMETERS: source_desc - Value to be stored |
| 519 | * Node - Named object to receive the value |
| 520 | * walk_state - Current walk state |
| 521 | * implicit_conversion - Perform implicit conversion (yes/no) |
| 522 | * |
| 523 | * RETURN: Status |
| 524 | * |
| 525 | * DESCRIPTION: Store the object to the named object. |
| 526 | * |
| 527 | * The Assignment of an object to a named object is handled here |
| 528 | * The value passed in will replace the current value (if any) |
| 529 | * with the input value. |
| 530 | * |
| 531 | * When storing into an object the data is converted to the |
| 532 | * target object type then stored in the object. This means |
| 533 | * that the target object type (for an initialized target) will |
| 534 | * not be changed by a store operation. |
| 535 | * |
| 536 | * Assumes parameters are already validated. |
| 537 | * |
| 538 | ******************************************************************************/ |
| 539 | |
| 540 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 541 | acpi_ex_store_object_to_node(union acpi_operand_object *source_desc, |
| 542 | struct acpi_namespace_node *node, |
| 543 | struct acpi_walk_state *walk_state, |
| 544 | u8 implicit_conversion) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 546 | acpi_status status = AE_OK; |
| 547 | union acpi_operand_object *target_desc; |
| 548 | union acpi_operand_object *new_desc; |
| 549 | acpi_object_type target_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 551 | ACPI_FUNCTION_TRACE_PTR("ex_store_object_to_node", source_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 553 | /* Get current type of the node, and object attached to Node */ |
| 554 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 555 | target_type = acpi_ns_get_type(node); |
| 556 | target_desc = acpi_ns_get_attached_object(node); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 558 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Storing %p(%s) into node %p(%s)\n", |
| 559 | source_desc, |
| 560 | acpi_ut_get_object_type_name(source_desc), node, |
| 561 | acpi_ut_get_type_name(target_type))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 562 | |
| 563 | /* |
| 564 | * Resolve the source object to an actual value |
| 565 | * (If it is a reference object) |
| 566 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 567 | status = acpi_ex_resolve_object(&source_desc, target_type, walk_state); |
| 568 | if (ACPI_FAILURE(status)) { |
| 569 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | } |
| 571 | |
| 572 | /* If no implicit conversion, drop into the default case below */ |
| 573 | |
Robert Moore | 6f42ccf | 2005-05-13 00:00:00 -0400 | [diff] [blame] | 574 | if ((!implicit_conversion) || (walk_state->opcode == AML_COPY_OP)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | /* Force execution of default (no implicit conversion) */ |
| 576 | |
| 577 | target_type = ACPI_TYPE_ANY; |
| 578 | } |
| 579 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 580 | /* Do the actual store operation */ |
| 581 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | switch (target_type) { |
| 583 | case ACPI_TYPE_BUFFER_FIELD: |
| 584 | case ACPI_TYPE_LOCAL_REGION_FIELD: |
| 585 | case ACPI_TYPE_LOCAL_BANK_FIELD: |
| 586 | case ACPI_TYPE_LOCAL_INDEX_FIELD: |
| 587 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 588 | /* For fields, copy the source data to the target field. */ |
| 589 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 590 | status = acpi_ex_write_data_to_field(source_desc, target_desc, |
| 591 | &walk_state->result_obj); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | break; |
| 593 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | case ACPI_TYPE_INTEGER: |
| 595 | case ACPI_TYPE_STRING: |
| 596 | case ACPI_TYPE_BUFFER: |
| 597 | |
| 598 | /* |
| 599 | * These target types are all of type Integer/String/Buffer, and |
| 600 | * therefore support implicit conversion before the store. |
| 601 | * |
| 602 | * Copy and/or convert the source object to a new target object |
| 603 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 604 | status = |
| 605 | acpi_ex_store_object_to_object(source_desc, target_desc, |
| 606 | &new_desc, walk_state); |
| 607 | if (ACPI_FAILURE(status)) { |
| 608 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | } |
| 610 | |
| 611 | if (new_desc != target_desc) { |
| 612 | /* |
| 613 | * Store the new new_desc as the new value of the Name, and set |
| 614 | * the Name's type to that of the value being stored in it. |
| 615 | * source_desc reference count is incremented by attach_object. |
| 616 | * |
| 617 | * Note: This may change the type of the node if an explicit store |
| 618 | * has been performed such that the node/object type has been |
| 619 | * changed. |
| 620 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 621 | status = |
| 622 | acpi_ns_attach_object(node, new_desc, |
| 623 | new_desc->common.type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 625 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 626 | "Store %s into %s via Convert/Attach\n", |
| 627 | acpi_ut_get_object_type_name |
| 628 | (source_desc), |
| 629 | acpi_ut_get_object_type_name |
| 630 | (new_desc))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 631 | } |
| 632 | break; |
| 633 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | default: |
| 635 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 636 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 637 | "Storing %s (%p) directly into node (%p) with no implicit conversion\n", |
| 638 | acpi_ut_get_object_type_name(source_desc), |
| 639 | source_desc, node)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | |
| 641 | /* No conversions for all other types. Just attach the source object */ |
| 642 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 643 | status = acpi_ns_attach_object(node, source_desc, |
| 644 | ACPI_GET_OBJECT_TYPE |
| 645 | (source_desc)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | break; |
| 647 | } |
| 648 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 649 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | } |