Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: exconvrt - Object conversion routines |
| 4 | * |
| 5 | *****************************************************************************/ |
| 6 | |
| 7 | /* |
Len Brown | 75a44ce | 2008-04-23 23:00:13 -0400 | [diff] [blame] | 8 | * Copyright (C) 2000 - 2008, Intel Corp. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | * All rights reserved. |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or without |
| 12 | * modification, are permitted provided that the following conditions |
| 13 | * are met: |
| 14 | * 1. Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions, and the following disclaimer, |
| 16 | * without modification. |
| 17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 18 | * substantially similar to the "NO WARRANTY" disclaimer below |
| 19 | * ("Disclaimer") and any redistribution must be conditioned upon |
| 20 | * including a substantially similar Disclaimer requirement for further |
| 21 | * binary redistribution. |
| 22 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 23 | * of any contributors may be used to endorse or promote products derived |
| 24 | * from this software without specific prior written permission. |
| 25 | * |
| 26 | * Alternatively, this software may be distributed under the terms of the |
| 27 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 28 | * Software Foundation. |
| 29 | * |
| 30 | * NO WARRANTY |
| 31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| 34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 41 | * POSSIBILITY OF SUCH DAMAGES. |
| 42 | */ |
| 43 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #include <acpi/acpi.h> |
| 45 | #include <acpi/acinterp.h> |
| 46 | #include <acpi/amlcode.h> |
| 47 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | #define _COMPONENT ACPI_EXECUTER |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 49 | ACPI_MODULE_NAME("exconvrt") |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 51 | /* Local prototypes */ |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 52 | static u32 |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 53 | acpi_ex_convert_to_ascii(acpi_integer integer, |
| 54 | u16 base, u8 * string, u8 max_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | |
| 56 | /******************************************************************************* |
| 57 | * |
| 58 | * FUNCTION: acpi_ex_convert_to_integer |
| 59 | * |
Bob Moore | 2425a09 | 2008-09-27 10:42:02 +0800 | [diff] [blame] | 60 | * PARAMETERS: obj_desc - Object to be converted. Must be an |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | * Integer, Buffer, or String |
| 62 | * result_desc - Where the new Integer object is returned |
| 63 | * Flags - Used for string conversion |
| 64 | * |
| 65 | * RETURN: Status |
| 66 | * |
| 67 | * DESCRIPTION: Convert an ACPI Object to an integer. |
| 68 | * |
| 69 | ******************************************************************************/ |
| 70 | |
| 71 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 72 | acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc, |
| 73 | union acpi_operand_object **result_desc, u32 flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 75 | union acpi_operand_object *return_desc; |
| 76 | u8 *pointer; |
| 77 | acpi_integer result; |
| 78 | u32 i; |
| 79 | u32 count; |
| 80 | acpi_status status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 82 | ACPI_FUNCTION_TRACE_PTR(ex_convert_to_integer, obj_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 84 | switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | case ACPI_TYPE_INTEGER: |
| 86 | |
| 87 | /* No conversion necessary */ |
| 88 | |
| 89 | *result_desc = obj_desc; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 90 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | |
| 92 | case ACPI_TYPE_BUFFER: |
| 93 | case ACPI_TYPE_STRING: |
| 94 | |
| 95 | /* Note: Takes advantage of common buffer/string fields */ |
| 96 | |
| 97 | pointer = obj_desc->buffer.pointer; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 98 | count = obj_desc->buffer.length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | break; |
| 100 | |
| 101 | default: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 102 | return_ACPI_STATUS(AE_TYPE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | } |
| 104 | |
| 105 | /* |
Bob Moore | 2425a09 | 2008-09-27 10:42:02 +0800 | [diff] [blame] | 106 | * Convert the buffer/string to an integer. Note that both buffers and |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | * strings are treated as raw data - we don't convert ascii to hex for |
| 108 | * strings. |
| 109 | * |
| 110 | * There are two terminating conditions for the loop: |
| 111 | * 1) The size of an integer has been reached, or |
| 112 | * 2) The end of the buffer or string has been reached |
| 113 | */ |
| 114 | result = 0; |
| 115 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 116 | /* String conversion is different than Buffer conversion */ |
| 117 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 118 | switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | case ACPI_TYPE_STRING: |
| 120 | |
| 121 | /* |
| 122 | * Convert string to an integer - for most cases, the string must be |
Bob Moore | 2425a09 | 2008-09-27 10:42:02 +0800 | [diff] [blame] | 123 | * hexadecimal as per the ACPI specification. The only exception (as |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | * of ACPI 3.0) is that the to_integer() operator allows both decimal |
| 125 | * and hexadecimal strings (hex prefixed with "0x"). |
| 126 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 127 | status = acpi_ut_strtoul64((char *)pointer, flags, &result); |
| 128 | if (ACPI_FAILURE(status)) { |
| 129 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | } |
| 131 | break; |
| 132 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | case ACPI_TYPE_BUFFER: |
| 134 | |
| 135 | /* Check for zero-length buffer */ |
| 136 | |
| 137 | if (!count) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 138 | return_ACPI_STATUS(AE_AML_BUFFER_LIMIT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | /* Transfer no more than an integer's worth of data */ |
| 142 | |
| 143 | if (count > acpi_gbl_integer_byte_width) { |
| 144 | count = acpi_gbl_integer_byte_width; |
| 145 | } |
| 146 | |
| 147 | /* |
| 148 | * Convert buffer to an integer - we simply grab enough raw data |
| 149 | * from the buffer to fill an integer |
| 150 | */ |
| 151 | for (i = 0; i < count; i++) { |
| 152 | /* |
| 153 | * Get next byte and shift it into the Result. |
| 154 | * Little endian is used, meaning that the first byte of the buffer |
| 155 | * is the LSB of the integer |
| 156 | */ |
| 157 | result |= (((acpi_integer) pointer[i]) << (i * 8)); |
| 158 | } |
| 159 | break; |
| 160 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | default: |
Bob Moore | 2425a09 | 2008-09-27 10:42:02 +0800 | [diff] [blame] | 162 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | /* No other types can get here */ |
| 164 | break; |
| 165 | } |
| 166 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 167 | /* Create a new integer */ |
| 168 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 169 | return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | if (!return_desc) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 171 | return_ACPI_STATUS(AE_NO_MEMORY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | } |
| 173 | |
Bob Moore | f6dd922 | 2006-07-07 20:44:38 -0400 | [diff] [blame] | 174 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n", |
| 175 | ACPI_FORMAT_UINT64(result))); |
| 176 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | /* Save the Result */ |
| 178 | |
| 179 | return_desc->integer.value = result; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 180 | acpi_ex_truncate_for32bit_table(return_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | *result_desc = return_desc; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 182 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | } |
| 184 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | /******************************************************************************* |
| 186 | * |
| 187 | * FUNCTION: acpi_ex_convert_to_buffer |
| 188 | * |
Bob Moore | 2425a09 | 2008-09-27 10:42:02 +0800 | [diff] [blame] | 189 | * PARAMETERS: obj_desc - Object to be converted. Must be an |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | * Integer, Buffer, or String |
| 191 | * result_desc - Where the new buffer object is returned |
| 192 | * |
| 193 | * RETURN: Status |
| 194 | * |
| 195 | * DESCRIPTION: Convert an ACPI Object to a Buffer |
| 196 | * |
| 197 | ******************************************************************************/ |
| 198 | |
| 199 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 200 | acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc, |
| 201 | union acpi_operand_object **result_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 203 | union acpi_operand_object *return_desc; |
| 204 | u8 *new_buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 206 | ACPI_FUNCTION_TRACE_PTR(ex_convert_to_buffer, obj_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 208 | switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | case ACPI_TYPE_BUFFER: |
| 210 | |
| 211 | /* No conversion necessary */ |
| 212 | |
| 213 | *result_desc = obj_desc; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 214 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | |
| 216 | case ACPI_TYPE_INTEGER: |
| 217 | |
| 218 | /* |
| 219 | * Create a new Buffer object. |
| 220 | * Need enough space for one integer |
| 221 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 222 | return_desc = |
| 223 | acpi_ut_create_buffer_object(acpi_gbl_integer_byte_width); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | if (!return_desc) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 225 | return_ACPI_STATUS(AE_NO_MEMORY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | } |
| 227 | |
| 228 | /* Copy the integer to the buffer, LSB first */ |
| 229 | |
| 230 | new_buf = return_desc->buffer.pointer; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 231 | ACPI_MEMCPY(new_buf, |
| 232 | &obj_desc->integer.value, |
| 233 | acpi_gbl_integer_byte_width); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | break; |
| 235 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | case ACPI_TYPE_STRING: |
| 237 | |
| 238 | /* |
| 239 | * Create a new Buffer object |
| 240 | * Size will be the string length |
| 241 | * |
| 242 | * NOTE: Add one to the string length to include the null terminator. |
| 243 | * The ACPI spec is unclear on this subject, but there is existing |
| 244 | * ASL/AML code that depends on the null being transferred to the new |
| 245 | * buffer. |
| 246 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 247 | return_desc = acpi_ut_create_buffer_object((acpi_size) |
| 248 | obj_desc->string. |
| 249 | length + 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | if (!return_desc) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 251 | return_ACPI_STATUS(AE_NO_MEMORY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | } |
| 253 | |
| 254 | /* Copy the string to the buffer */ |
| 255 | |
| 256 | new_buf = return_desc->buffer.pointer; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 257 | ACPI_STRNCPY((char *)new_buf, (char *)obj_desc->string.pointer, |
| 258 | obj_desc->string.length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | break; |
| 260 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | default: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 262 | return_ACPI_STATUS(AE_TYPE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | } |
| 264 | |
| 265 | /* Mark buffer initialized */ |
| 266 | |
| 267 | return_desc->common.flags |= AOPOBJ_DATA_VALID; |
| 268 | *result_desc = return_desc; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 269 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | } |
| 271 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | /******************************************************************************* |
| 273 | * |
| 274 | * FUNCTION: acpi_ex_convert_to_ascii |
| 275 | * |
| 276 | * PARAMETERS: Integer - Value to be converted |
| 277 | * Base - ACPI_STRING_DECIMAL or ACPI_STRING_HEX |
| 278 | * String - Where the string is returned |
| 279 | * data_width - Size of data item to be converted, in bytes |
| 280 | * |
| 281 | * RETURN: Actual string length |
| 282 | * |
| 283 | * DESCRIPTION: Convert an ACPI Integer to a hex or decimal string |
| 284 | * |
| 285 | ******************************************************************************/ |
| 286 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 287 | static u32 |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 288 | acpi_ex_convert_to_ascii(acpi_integer integer, |
| 289 | u16 base, u8 * string, u8 data_width) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 291 | acpi_integer digit; |
Bob Moore | 67a119f | 2008-06-10 13:42:13 +0800 | [diff] [blame] | 292 | u32 i; |
| 293 | u32 j; |
| 294 | u32 k = 0; |
| 295 | u32 hex_length; |
| 296 | u32 decimal_length; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 297 | u32 remainder; |
| 298 | u8 supress_zeros; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 300 | ACPI_FUNCTION_ENTRY(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | |
| 302 | switch (base) { |
| 303 | case 10: |
| 304 | |
| 305 | /* Setup max length for the decimal number */ |
| 306 | |
| 307 | switch (data_width) { |
| 308 | case 1: |
| 309 | decimal_length = ACPI_MAX8_DECIMAL_DIGITS; |
| 310 | break; |
| 311 | |
| 312 | case 4: |
| 313 | decimal_length = ACPI_MAX32_DECIMAL_DIGITS; |
| 314 | break; |
| 315 | |
| 316 | case 8: |
| 317 | default: |
| 318 | decimal_length = ACPI_MAX64_DECIMAL_DIGITS; |
| 319 | break; |
| 320 | } |
| 321 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 322 | supress_zeros = TRUE; /* No leading zeros */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | remainder = 0; |
| 324 | |
| 325 | for (i = decimal_length; i > 0; i--) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 326 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | /* Divide by nth factor of 10 */ |
| 328 | |
| 329 | digit = integer; |
| 330 | for (j = 0; j < i; j++) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 331 | (void)acpi_ut_short_divide(digit, 10, &digit, |
| 332 | &remainder); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | } |
| 334 | |
| 335 | /* Handle leading zeros */ |
| 336 | |
| 337 | if (remainder != 0) { |
| 338 | supress_zeros = FALSE; |
| 339 | } |
| 340 | |
| 341 | if (!supress_zeros) { |
| 342 | string[k] = (u8) (ACPI_ASCII_ZERO + remainder); |
| 343 | k++; |
| 344 | } |
| 345 | } |
| 346 | break; |
| 347 | |
| 348 | case 16: |
| 349 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 350 | /* hex_length: 2 ascii hex chars per data byte */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | |
Bob Moore | 67a119f | 2008-06-10 13:42:13 +0800 | [diff] [blame] | 352 | hex_length = ACPI_MUL_2(data_width); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 353 | for (i = 0, j = (hex_length - 1); i < hex_length; i++, j--) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 354 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | /* Get one hex digit, most significant digits first */ |
| 356 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 357 | string[k] = |
| 358 | (u8) acpi_ut_hex_to_ascii_char(integer, |
| 359 | ACPI_MUL_4(j)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | k++; |
| 361 | } |
| 362 | break; |
| 363 | |
| 364 | default: |
| 365 | return (0); |
| 366 | } |
| 367 | |
| 368 | /* |
Bob Moore | 2425a09 | 2008-09-27 10:42:02 +0800 | [diff] [blame] | 369 | * Since leading zeros are suppressed, we must check for the case where |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | * the integer equals 0 |
| 371 | * |
| 372 | * Finally, null terminate the string and return the length |
| 373 | */ |
| 374 | if (!k) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 375 | string[0] = ACPI_ASCII_ZERO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | k = 1; |
| 377 | } |
| 378 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 379 | string[k] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | return ((u32) k); |
| 381 | } |
| 382 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | /******************************************************************************* |
| 384 | * |
| 385 | * FUNCTION: acpi_ex_convert_to_string |
| 386 | * |
Bob Moore | 2425a09 | 2008-09-27 10:42:02 +0800 | [diff] [blame] | 387 | * PARAMETERS: obj_desc - Object to be converted. Must be an |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | * Integer, Buffer, or String |
| 389 | * result_desc - Where the string object is returned |
| 390 | * Type - String flags (base and conversion type) |
| 391 | * |
| 392 | * RETURN: Status |
| 393 | * |
| 394 | * DESCRIPTION: Convert an ACPI Object to a string |
| 395 | * |
| 396 | ******************************************************************************/ |
| 397 | |
| 398 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 399 | acpi_ex_convert_to_string(union acpi_operand_object * obj_desc, |
| 400 | union acpi_operand_object ** result_desc, u32 type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 402 | union acpi_operand_object *return_desc; |
| 403 | u8 *new_buf; |
| 404 | u32 i; |
| 405 | u32 string_length = 0; |
| 406 | u16 base = 16; |
| 407 | u8 separator = ','; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 409 | ACPI_FUNCTION_TRACE_PTR(ex_convert_to_string, obj_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 411 | switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | case ACPI_TYPE_STRING: |
| 413 | |
| 414 | /* No conversion necessary */ |
| 415 | |
| 416 | *result_desc = obj_desc; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 417 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | |
| 419 | case ACPI_TYPE_INTEGER: |
| 420 | |
| 421 | switch (type) { |
| 422 | case ACPI_EXPLICIT_CONVERT_DECIMAL: |
| 423 | |
| 424 | /* Make room for maximum decimal number */ |
| 425 | |
| 426 | string_length = ACPI_MAX_DECIMAL_DIGITS; |
| 427 | base = 10; |
| 428 | break; |
| 429 | |
| 430 | default: |
| 431 | |
| 432 | /* Two hex string characters for each integer byte */ |
| 433 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 434 | string_length = ACPI_MUL_2(acpi_gbl_integer_byte_width); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | break; |
| 436 | } |
| 437 | |
| 438 | /* |
| 439 | * Create a new String |
| 440 | * Need enough space for one ASCII integer (plus null terminator) |
| 441 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 442 | return_desc = |
| 443 | acpi_ut_create_string_object((acpi_size) string_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | if (!return_desc) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 445 | return_ACPI_STATUS(AE_NO_MEMORY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | } |
| 447 | |
| 448 | new_buf = return_desc->buffer.pointer; |
| 449 | |
| 450 | /* Convert integer to string */ |
| 451 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 452 | string_length = |
| 453 | acpi_ex_convert_to_ascii(obj_desc->integer.value, base, |
| 454 | new_buf, |
| 455 | acpi_gbl_integer_byte_width); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | |
| 457 | /* Null terminate at the correct place */ |
| 458 | |
| 459 | return_desc->string.length = string_length; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 460 | new_buf[string_length] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | break; |
| 462 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | case ACPI_TYPE_BUFFER: |
| 464 | |
| 465 | /* Setup string length, base, and separator */ |
| 466 | |
| 467 | switch (type) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 468 | case ACPI_EXPLICIT_CONVERT_DECIMAL: /* Used by to_decimal_string */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | /* |
| 470 | * From ACPI: "If Data is a buffer, it is converted to a string of |
| 471 | * decimal values separated by commas." |
| 472 | */ |
| 473 | base = 10; |
| 474 | |
| 475 | /* |
Bob Moore | 2425a09 | 2008-09-27 10:42:02 +0800 | [diff] [blame] | 476 | * Calculate the final string length. Individual string values |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | * are variable length (include separator for each) |
| 478 | */ |
| 479 | for (i = 0; i < obj_desc->buffer.length; i++) { |
| 480 | if (obj_desc->buffer.pointer[i] >= 100) { |
| 481 | string_length += 4; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 482 | } else if (obj_desc->buffer.pointer[i] >= 10) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | string_length += 3; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 484 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | string_length += 2; |
| 486 | } |
| 487 | } |
| 488 | break; |
| 489 | |
| 490 | case ACPI_IMPLICIT_CONVERT_HEX: |
| 491 | /* |
| 492 | * From the ACPI spec: |
| 493 | *"The entire contents of the buffer are converted to a string of |
| 494 | * two-character hexadecimal numbers, each separated by a space." |
| 495 | */ |
| 496 | separator = ' '; |
| 497 | string_length = (obj_desc->buffer.length * 3); |
| 498 | break; |
| 499 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 500 | case ACPI_EXPLICIT_CONVERT_HEX: /* Used by to_hex_string */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 501 | /* |
| 502 | * From ACPI: "If Data is a buffer, it is converted to a string of |
| 503 | * hexadecimal values separated by commas." |
| 504 | */ |
| 505 | string_length = (obj_desc->buffer.length * 3); |
| 506 | break; |
| 507 | |
| 508 | default: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 509 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | } |
| 511 | |
| 512 | /* |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 513 | * Create a new string object and string buffer |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | * (-1 because of extra separator included in string_length from above) |
Bob Moore | 4ca846e | 2008-09-27 13:27:51 +0800 | [diff] [blame] | 515 | * Allow creation of zero-length strings from zero-length buffers. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | */ |
Bob Moore | 4ca846e | 2008-09-27 13:27:51 +0800 | [diff] [blame] | 517 | if (string_length) { |
| 518 | string_length--; |
| 519 | } |
| 520 | |
Len Brown | fd35094 | 2007-05-09 23:34:35 -0400 | [diff] [blame] | 521 | return_desc = acpi_ut_create_string_object((acpi_size) |
Bob Moore | 4ca846e | 2008-09-27 13:27:51 +0800 | [diff] [blame] | 522 | string_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | if (!return_desc) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 524 | return_ACPI_STATUS(AE_NO_MEMORY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | } |
| 526 | |
| 527 | new_buf = return_desc->buffer.pointer; |
| 528 | |
| 529 | /* |
| 530 | * Convert buffer bytes to hex or decimal values |
| 531 | * (separated by commas or spaces) |
| 532 | */ |
| 533 | for (i = 0; i < obj_desc->buffer.length; i++) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 534 | new_buf += acpi_ex_convert_to_ascii((acpi_integer) |
| 535 | obj_desc->buffer. |
| 536 | pointer[i], base, |
| 537 | new_buf, 1); |
| 538 | *new_buf++ = separator; /* each separated by a comma or space */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | } |
| 540 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 541 | /* |
| 542 | * Null terminate the string |
| 543 | * (overwrites final comma/space from above) |
| 544 | */ |
Bob Moore | 4ca846e | 2008-09-27 13:27:51 +0800 | [diff] [blame] | 545 | if (obj_desc->buffer.length) { |
| 546 | new_buf--; |
| 547 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | *new_buf = 0; |
| 549 | break; |
| 550 | |
| 551 | default: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 552 | return_ACPI_STATUS(AE_TYPE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | } |
| 554 | |
| 555 | *result_desc = return_desc; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 556 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | } |
| 558 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | /******************************************************************************* |
| 560 | * |
| 561 | * FUNCTION: acpi_ex_convert_to_target_type |
| 562 | * |
| 563 | * PARAMETERS: destination_type - Current type of the destination |
| 564 | * source_desc - Source object to be converted. |
| 565 | * result_desc - Where the converted object is returned |
| 566 | * walk_state - Current method state |
| 567 | * |
| 568 | * RETURN: Status |
| 569 | * |
| 570 | * DESCRIPTION: Implements "implicit conversion" rules for storing an object. |
| 571 | * |
| 572 | ******************************************************************************/ |
| 573 | |
| 574 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 575 | acpi_ex_convert_to_target_type(acpi_object_type destination_type, |
| 576 | union acpi_operand_object *source_desc, |
| 577 | union acpi_operand_object **result_desc, |
| 578 | struct acpi_walk_state *walk_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 579 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 580 | acpi_status status = AE_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 582 | ACPI_FUNCTION_TRACE(ex_convert_to_target_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | |
| 584 | /* Default behavior */ |
| 585 | |
| 586 | *result_desc = source_desc; |
| 587 | |
| 588 | /* |
| 589 | * If required by the target, |
| 590 | * perform implicit conversion on the source before we store it. |
| 591 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 592 | switch (GET_CURRENT_ARG_TYPE(walk_state->op_info->runtime_args)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | case ARGI_SIMPLE_TARGET: |
| 594 | case ARGI_FIXED_TARGET: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 595 | case ARGI_INTEGER_REF: /* Handles Increment, Decrement cases */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | |
| 597 | switch (destination_type) { |
| 598 | case ACPI_TYPE_LOCAL_REGION_FIELD: |
| 599 | /* |
| 600 | * Named field can always handle conversions |
| 601 | */ |
| 602 | break; |
| 603 | |
| 604 | default: |
| 605 | /* No conversion allowed for these types */ |
| 606 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 607 | if (destination_type != |
| 608 | ACPI_GET_OBJECT_TYPE(source_desc)) { |
| 609 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
| 610 | "Explicit operator, will store (%s) over existing type (%s)\n", |
| 611 | acpi_ut_get_object_type_name |
| 612 | (source_desc), |
| 613 | acpi_ut_get_type_name |
| 614 | (destination_type))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 615 | status = AE_TYPE; |
| 616 | } |
| 617 | } |
| 618 | break; |
| 619 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | case ARGI_TARGETREF: |
| 621 | |
| 622 | switch (destination_type) { |
| 623 | case ACPI_TYPE_INTEGER: |
| 624 | case ACPI_TYPE_BUFFER_FIELD: |
| 625 | case ACPI_TYPE_LOCAL_BANK_FIELD: |
| 626 | case ACPI_TYPE_LOCAL_INDEX_FIELD: |
| 627 | /* |
Bob Moore | 2425a09 | 2008-09-27 10:42:02 +0800 | [diff] [blame] | 628 | * These types require an Integer operand. We can convert |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | * a Buffer or a String to an Integer if necessary. |
| 630 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 631 | status = |
| 632 | acpi_ex_convert_to_integer(source_desc, result_desc, |
| 633 | 16); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | break; |
| 635 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 636 | case ACPI_TYPE_STRING: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | /* |
Bob Moore | 2425a09 | 2008-09-27 10:42:02 +0800 | [diff] [blame] | 638 | * The operand must be a String. We can convert an |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | * Integer or Buffer if necessary |
| 640 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 641 | status = |
| 642 | acpi_ex_convert_to_string(source_desc, result_desc, |
| 643 | ACPI_IMPLICIT_CONVERT_HEX); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | break; |
| 645 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | case ACPI_TYPE_BUFFER: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | /* |
Bob Moore | 2425a09 | 2008-09-27 10:42:02 +0800 | [diff] [blame] | 648 | * The operand must be a Buffer. We can convert an |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 649 | * Integer or String if necessary |
| 650 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 651 | status = |
| 652 | acpi_ex_convert_to_buffer(source_desc, result_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | break; |
| 654 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | default: |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 656 | ACPI_ERROR((AE_INFO, |
| 657 | "Bad destination type during conversion: %X", |
| 658 | destination_type)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | status = AE_AML_INTERNAL; |
| 660 | break; |
| 661 | } |
| 662 | break; |
| 663 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | case ARGI_REFERENCE: |
| 665 | /* |
| 666 | * create_xxxx_field cases - we are storing the field object into the name |
| 667 | */ |
| 668 | break; |
| 669 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | default: |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 671 | ACPI_ERROR((AE_INFO, |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 672 | "Unknown Target type ID 0x%X AmlOpcode %X DestType %s", |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 673 | GET_CURRENT_ARG_TYPE(walk_state->op_info-> |
| 674 | runtime_args), |
| 675 | walk_state->opcode, |
| 676 | acpi_ut_get_type_name(destination_type))); |
Bob Moore | 4a90c7e | 2006-01-13 16:22:00 -0500 | [diff] [blame] | 677 | status = AE_AML_INTERNAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | } |
| 679 | |
| 680 | /* |
| 681 | * Source-to-Target conversion semantics: |
| 682 | * |
| 683 | * If conversion to the target type cannot be performed, then simply |
| 684 | * overwrite the target with the new object and type. |
| 685 | */ |
| 686 | if (status == AE_TYPE) { |
| 687 | status = AE_OK; |
| 688 | } |
| 689 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 690 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | } |