Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /******************************************************************************* |
| 2 | * |
| 3 | * Module Name: rsmisc - Miscellaneous resource descriptors |
| 4 | * |
| 5 | ******************************************************************************/ |
| 6 | |
| 7 | /* |
| 8 | * Copyright (C) 2000 - 2005, R. Byron Moore |
| 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 | |
| 44 | |
| 45 | #include <acpi/acpi.h> |
| 46 | #include <acpi/acresrc.h> |
| 47 | |
| 48 | #define _COMPONENT ACPI_RESOURCES |
| 49 | ACPI_MODULE_NAME ("rsmisc") |
| 50 | |
| 51 | |
| 52 | /******************************************************************************* |
| 53 | * |
| 54 | * FUNCTION: acpi_rs_end_tag_resource |
| 55 | * |
| 56 | * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte |
| 57 | * stream |
| 58 | * bytes_consumed - Pointer to where the number of bytes |
| 59 | * consumed the byte_stream_buffer is |
| 60 | * returned |
| 61 | * output_buffer - Pointer to the return data buffer |
| 62 | * structure_size - Pointer to where the number of bytes |
| 63 | * in the return data struct is returned |
| 64 | * |
| 65 | * RETURN: Status |
| 66 | * |
| 67 | * DESCRIPTION: Take the resource byte stream and fill out the appropriate |
| 68 | * structure pointed to by the output_buffer. Return the |
| 69 | * number of bytes consumed from the byte stream. |
| 70 | * |
| 71 | ******************************************************************************/ |
| 72 | |
| 73 | acpi_status |
| 74 | acpi_rs_end_tag_resource ( |
| 75 | u8 *byte_stream_buffer, |
| 76 | acpi_size *bytes_consumed, |
| 77 | u8 **output_buffer, |
| 78 | acpi_size *structure_size) |
| 79 | { |
| 80 | struct acpi_resource *output_struct = (void *) *output_buffer; |
| 81 | acpi_size struct_size = ACPI_RESOURCE_LENGTH; |
| 82 | |
| 83 | |
| 84 | ACPI_FUNCTION_TRACE ("rs_end_tag_resource"); |
| 85 | |
| 86 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 87 | /* The number of bytes consumed is static */ |
| 88 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | *bytes_consumed = 2; |
| 90 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 91 | /* Fill out the structure */ |
| 92 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | output_struct->id = ACPI_RSTYPE_END_TAG; |
| 94 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 95 | /* Set the Length parameter */ |
| 96 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | output_struct->length = 0; |
| 98 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 99 | /* Return the final size of the structure */ |
| 100 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | *structure_size = struct_size; |
| 102 | return_ACPI_STATUS (AE_OK); |
| 103 | } |
| 104 | |
| 105 | |
| 106 | /******************************************************************************* |
| 107 | * |
| 108 | * FUNCTION: acpi_rs_end_tag_stream |
| 109 | * |
| 110 | * PARAMETERS: linked_list - Pointer to the resource linked list |
| 111 | * output_buffer - Pointer to the user's return buffer |
| 112 | * bytes_consumed - Pointer to where the number of bytes |
| 113 | * used in the output_buffer is returned |
| 114 | * |
| 115 | * RETURN: Status |
| 116 | * |
| 117 | * DESCRIPTION: Take the linked list resource structure and fills in the |
| 118 | * the appropriate bytes in a byte stream |
| 119 | * |
| 120 | ******************************************************************************/ |
| 121 | |
| 122 | acpi_status |
| 123 | acpi_rs_end_tag_stream ( |
| 124 | struct acpi_resource *linked_list, |
| 125 | u8 **output_buffer, |
| 126 | acpi_size *bytes_consumed) |
| 127 | { |
| 128 | u8 *buffer = *output_buffer; |
| 129 | u8 temp8 = 0; |
| 130 | |
| 131 | |
| 132 | ACPI_FUNCTION_TRACE ("rs_end_tag_stream"); |
| 133 | |
| 134 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 135 | /* The descriptor field is static */ |
| 136 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | *buffer = 0x79; |
| 138 | buffer += 1; |
| 139 | |
| 140 | /* |
| 141 | * Set the Checksum - zero means that the resource data is treated as if |
| 142 | * the checksum operation succeeded (ACPI Spec 1.0b Section 6.4.2.8) |
| 143 | */ |
| 144 | temp8 = 0; |
| 145 | |
| 146 | *buffer = temp8; |
| 147 | buffer += 1; |
| 148 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 149 | /* Return the number of bytes consumed in this operation */ |
| 150 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer); |
| 152 | return_ACPI_STATUS (AE_OK); |
| 153 | } |
| 154 | |
| 155 | |
| 156 | /******************************************************************************* |
| 157 | * |
| 158 | * FUNCTION: acpi_rs_vendor_resource |
| 159 | * |
| 160 | * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte |
| 161 | * stream |
| 162 | * bytes_consumed - Pointer to where the number of bytes |
| 163 | * consumed the byte_stream_buffer is |
| 164 | * returned |
| 165 | * output_buffer - Pointer to the return data buffer |
| 166 | * structure_size - Pointer to where the number of bytes |
| 167 | * in the return data struct is returned |
| 168 | * |
| 169 | * RETURN: Status |
| 170 | * |
| 171 | * DESCRIPTION: Take the resource byte stream and fill out the appropriate |
| 172 | * structure pointed to by the output_buffer. Return the |
| 173 | * number of bytes consumed from the byte stream. |
| 174 | * |
| 175 | ******************************************************************************/ |
| 176 | |
| 177 | acpi_status |
| 178 | acpi_rs_vendor_resource ( |
| 179 | u8 *byte_stream_buffer, |
| 180 | acpi_size *bytes_consumed, |
| 181 | u8 **output_buffer, |
| 182 | acpi_size *structure_size) |
| 183 | { |
| 184 | u8 *buffer = byte_stream_buffer; |
| 185 | struct acpi_resource *output_struct = (void *) *output_buffer; |
| 186 | u16 temp16 = 0; |
| 187 | u8 temp8 = 0; |
| 188 | u8 index; |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 189 | acpi_size struct_size = ACPI_SIZEOF_RESOURCE ( |
| 190 | struct acpi_resource_vendor); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | |
| 192 | |
| 193 | ACPI_FUNCTION_TRACE ("rs_vendor_resource"); |
| 194 | |
| 195 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 196 | /* Dereference the Descriptor to find if this is a large or small item. */ |
| 197 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | temp8 = *buffer; |
| 199 | |
| 200 | if (temp8 & 0x80) { |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 201 | /* Large Item, point to the length field */ |
| 202 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | buffer += 1; |
| 204 | |
| 205 | /* Dereference */ |
| 206 | |
| 207 | ACPI_MOVE_16_TO_16 (&temp16, buffer); |
| 208 | |
| 209 | /* Calculate bytes consumed */ |
| 210 | |
| 211 | *bytes_consumed = (acpi_size) temp16 + 3; |
| 212 | |
| 213 | /* Point to the first vendor byte */ |
| 214 | |
| 215 | buffer += 2; |
| 216 | } |
| 217 | else { |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 218 | /* Small Item, dereference the size */ |
| 219 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | temp16 = (u8)(*buffer & 0x07); |
| 221 | |
| 222 | /* Calculate bytes consumed */ |
| 223 | |
| 224 | *bytes_consumed = (acpi_size) temp16 + 1; |
| 225 | |
| 226 | /* Point to the first vendor byte */ |
| 227 | |
| 228 | buffer += 1; |
| 229 | } |
| 230 | |
| 231 | output_struct->id = ACPI_RSTYPE_VENDOR; |
| 232 | output_struct->data.vendor_specific.length = temp16; |
| 233 | |
| 234 | for (index = 0; index < temp16; index++) { |
| 235 | output_struct->data.vendor_specific.reserved[index] = *buffer; |
| 236 | buffer += 1; |
| 237 | } |
| 238 | |
| 239 | /* |
| 240 | * In order for the struct_size to fall on a 32-bit boundary, |
| 241 | * calculate the length of the vendor string and expand the |
| 242 | * struct_size to the next 32-bit boundary. |
| 243 | */ |
| 244 | struct_size += ACPI_ROUND_UP_to_32_bITS (temp16); |
| 245 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 246 | /* Set the Length parameter */ |
| 247 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | output_struct->length = (u32) struct_size; |
| 249 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 250 | /* Return the final size of the structure */ |
| 251 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | *structure_size = struct_size; |
| 253 | return_ACPI_STATUS (AE_OK); |
| 254 | } |
| 255 | |
| 256 | |
| 257 | /******************************************************************************* |
| 258 | * |
| 259 | * FUNCTION: acpi_rs_vendor_stream |
| 260 | * |
| 261 | * PARAMETERS: linked_list - Pointer to the resource linked list |
| 262 | * output_buffer - Pointer to the user's return buffer |
| 263 | * bytes_consumed - Pointer to where the number of bytes |
| 264 | * used in the output_buffer is returned |
| 265 | * |
| 266 | * RETURN: Status |
| 267 | * |
| 268 | * DESCRIPTION: Take the linked list resource structure and fills in the |
| 269 | * the appropriate bytes in a byte stream |
| 270 | * |
| 271 | ******************************************************************************/ |
| 272 | |
| 273 | acpi_status |
| 274 | acpi_rs_vendor_stream ( |
| 275 | struct acpi_resource *linked_list, |
| 276 | u8 **output_buffer, |
| 277 | acpi_size *bytes_consumed) |
| 278 | { |
| 279 | u8 *buffer = *output_buffer; |
| 280 | u16 temp16 = 0; |
| 281 | u8 temp8 = 0; |
| 282 | u8 index; |
| 283 | |
| 284 | |
| 285 | ACPI_FUNCTION_TRACE ("rs_vendor_stream"); |
| 286 | |
| 287 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 288 | /* Dereference the length to find if this is a large or small item. */ |
| 289 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | if(linked_list->data.vendor_specific.length > 7) { |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 291 | /* Large Item, Set the descriptor field and length bytes */ |
| 292 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | *buffer = 0x84; |
| 294 | buffer += 1; |
| 295 | |
| 296 | temp16 = (u16) linked_list->data.vendor_specific.length; |
| 297 | |
| 298 | ACPI_MOVE_16_TO_16 (buffer, &temp16); |
| 299 | buffer += 2; |
| 300 | } |
| 301 | else { |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 302 | /* Small Item, Set the descriptor field */ |
| 303 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | temp8 = 0x70; |
| 305 | temp8 |= (u8) linked_list->data.vendor_specific.length; |
| 306 | |
| 307 | *buffer = temp8; |
| 308 | buffer += 1; |
| 309 | } |
| 310 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 311 | /* Loop through all of the Vendor Specific fields */ |
| 312 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | for (index = 0; index < linked_list->data.vendor_specific.length; index++) { |
| 314 | temp8 = linked_list->data.vendor_specific.reserved[index]; |
| 315 | |
| 316 | *buffer = temp8; |
| 317 | buffer += 1; |
| 318 | } |
| 319 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 320 | /* Return the number of bytes consumed in this operation */ |
| 321 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer); |
| 323 | return_ACPI_STATUS (AE_OK); |
| 324 | } |
| 325 | |
| 326 | |
| 327 | /******************************************************************************* |
| 328 | * |
| 329 | * FUNCTION: acpi_rs_start_depend_fns_resource |
| 330 | * |
| 331 | * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte |
| 332 | * stream |
| 333 | * bytes_consumed - Pointer to where the number of bytes |
| 334 | * consumed the byte_stream_buffer is |
| 335 | * returned |
| 336 | * output_buffer - Pointer to the return data buffer |
| 337 | * structure_size - Pointer to where the number of bytes |
| 338 | * in the return data struct is returned |
| 339 | * |
| 340 | * RETURN: Status |
| 341 | * |
| 342 | * DESCRIPTION: Take the resource byte stream and fill out the appropriate |
| 343 | * structure pointed to by the output_buffer. Return the |
| 344 | * number of bytes consumed from the byte stream. |
| 345 | * |
| 346 | ******************************************************************************/ |
| 347 | |
| 348 | acpi_status |
| 349 | acpi_rs_start_depend_fns_resource ( |
| 350 | u8 *byte_stream_buffer, |
| 351 | acpi_size *bytes_consumed, |
| 352 | u8 **output_buffer, |
| 353 | acpi_size *structure_size) |
| 354 | { |
| 355 | u8 *buffer = byte_stream_buffer; |
| 356 | struct acpi_resource *output_struct = (void *) *output_buffer; |
| 357 | u8 temp8 = 0; |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 358 | acpi_size struct_size = ACPI_SIZEOF_RESOURCE ( |
| 359 | struct acpi_resource_start_dpf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | |
| 361 | |
| 362 | ACPI_FUNCTION_TRACE ("rs_start_depend_fns_resource"); |
| 363 | |
| 364 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 365 | /* The number of bytes consumed are found in the descriptor (Bits:0-1) */ |
| 366 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | temp8 = *buffer; |
| 368 | |
| 369 | *bytes_consumed = (temp8 & 0x01) + 1; |
| 370 | |
| 371 | output_struct->id = ACPI_RSTYPE_START_DPF; |
| 372 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 373 | /* Point to Byte 1 if it is used */ |
| 374 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | if (2 == *bytes_consumed) { |
| 376 | buffer += 1; |
| 377 | temp8 = *buffer; |
| 378 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 379 | /* Check Compatibility priority */ |
| 380 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | output_struct->data.start_dpf.compatibility_priority = temp8 & 0x03; |
| 382 | |
| 383 | if (3 == output_struct->data.start_dpf.compatibility_priority) { |
| 384 | return_ACPI_STATUS (AE_AML_BAD_RESOURCE_VALUE); |
| 385 | } |
| 386 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 387 | /* Check Performance/Robustness preference */ |
| 388 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | output_struct->data.start_dpf.performance_robustness = (temp8 >> 2) & 0x03; |
| 390 | |
| 391 | if (3 == output_struct->data.start_dpf.performance_robustness) { |
| 392 | return_ACPI_STATUS (AE_AML_BAD_RESOURCE_VALUE); |
| 393 | } |
| 394 | } |
| 395 | else { |
| 396 | output_struct->data.start_dpf.compatibility_priority = |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 397 | ACPI_ACCEPTABLE_CONFIGURATION; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | |
| 399 | output_struct->data.start_dpf.performance_robustness = |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 400 | ACPI_ACCEPTABLE_CONFIGURATION; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | } |
| 402 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 403 | /* Set the Length parameter */ |
| 404 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | output_struct->length = (u32) struct_size; |
| 406 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 407 | /* Return the final size of the structure */ |
| 408 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | *structure_size = struct_size; |
| 410 | return_ACPI_STATUS (AE_OK); |
| 411 | } |
| 412 | |
| 413 | |
| 414 | /******************************************************************************* |
| 415 | * |
| 416 | * FUNCTION: acpi_rs_end_depend_fns_resource |
| 417 | * |
| 418 | * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte |
| 419 | * stream |
| 420 | * bytes_consumed - Pointer to where the number of bytes |
| 421 | * consumed the byte_stream_buffer is |
| 422 | * returned |
| 423 | * output_buffer - Pointer to the return data buffer |
| 424 | * structure_size - Pointer to where the number of bytes |
| 425 | * in the return data struct is returned |
| 426 | * |
| 427 | * RETURN: Status |
| 428 | * |
| 429 | * DESCRIPTION: Take the resource byte stream and fill out the appropriate |
| 430 | * structure pointed to by the output_buffer. Return the |
| 431 | * number of bytes consumed from the byte stream. |
| 432 | * |
| 433 | ******************************************************************************/ |
| 434 | |
| 435 | acpi_status |
| 436 | acpi_rs_end_depend_fns_resource ( |
| 437 | u8 *byte_stream_buffer, |
| 438 | acpi_size *bytes_consumed, |
| 439 | u8 **output_buffer, |
| 440 | acpi_size *structure_size) |
| 441 | { |
| 442 | struct acpi_resource *output_struct = (void *) *output_buffer; |
| 443 | acpi_size struct_size = ACPI_RESOURCE_LENGTH; |
| 444 | |
| 445 | |
| 446 | ACPI_FUNCTION_TRACE ("rs_end_depend_fns_resource"); |
| 447 | |
| 448 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 449 | /* The number of bytes consumed is static */ |
| 450 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | *bytes_consumed = 1; |
| 452 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 453 | /* Fill out the structure */ |
| 454 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | output_struct->id = ACPI_RSTYPE_END_DPF; |
| 456 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 457 | /* Set the Length parameter */ |
| 458 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | output_struct->length = (u32) struct_size; |
| 460 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 461 | /* Return the final size of the structure */ |
| 462 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | *structure_size = struct_size; |
| 464 | return_ACPI_STATUS (AE_OK); |
| 465 | } |
| 466 | |
| 467 | |
| 468 | /******************************************************************************* |
| 469 | * |
| 470 | * FUNCTION: acpi_rs_start_depend_fns_stream |
| 471 | * |
| 472 | * PARAMETERS: linked_list - Pointer to the resource linked list |
| 473 | * output_buffer - Pointer to the user's return buffer |
| 474 | * bytes_consumed - u32 pointer that is filled with |
| 475 | * the number of bytes of the |
| 476 | * output_buffer used |
| 477 | * |
| 478 | * RETURN: Status |
| 479 | * |
| 480 | * DESCRIPTION: Take the linked list resource structure and fills in the |
| 481 | * the appropriate bytes in a byte stream |
| 482 | * |
| 483 | ******************************************************************************/ |
| 484 | |
| 485 | acpi_status |
| 486 | acpi_rs_start_depend_fns_stream ( |
| 487 | struct acpi_resource *linked_list, |
| 488 | u8 **output_buffer, |
| 489 | acpi_size *bytes_consumed) |
| 490 | { |
| 491 | u8 *buffer = *output_buffer; |
| 492 | u8 temp8 = 0; |
| 493 | |
| 494 | |
| 495 | ACPI_FUNCTION_TRACE ("rs_start_depend_fns_stream"); |
| 496 | |
| 497 | |
| 498 | /* |
| 499 | * The descriptor field is set based upon whether a byte is needed |
| 500 | * to contain Priority data. |
| 501 | */ |
| 502 | if (ACPI_ACCEPTABLE_CONFIGURATION == |
| 503 | linked_list->data.start_dpf.compatibility_priority && |
| 504 | ACPI_ACCEPTABLE_CONFIGURATION == |
| 505 | linked_list->data.start_dpf.performance_robustness) { |
| 506 | *buffer = 0x30; |
| 507 | } |
| 508 | else { |
| 509 | *buffer = 0x31; |
| 510 | buffer += 1; |
| 511 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 512 | /* Set the Priority Byte Definition */ |
| 513 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | temp8 = 0; |
| 515 | temp8 = (u8) ((linked_list->data.start_dpf.performance_robustness & |
| 516 | 0x03) << 2); |
| 517 | temp8 |= (linked_list->data.start_dpf.compatibility_priority & |
| 518 | 0x03); |
| 519 | *buffer = temp8; |
| 520 | } |
| 521 | |
| 522 | buffer += 1; |
| 523 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 524 | /* Return the number of bytes consumed in this operation */ |
| 525 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer); |
| 527 | return_ACPI_STATUS (AE_OK); |
| 528 | } |
| 529 | |
| 530 | |
| 531 | /******************************************************************************* |
| 532 | * |
| 533 | * FUNCTION: acpi_rs_end_depend_fns_stream |
| 534 | * |
| 535 | * PARAMETERS: linked_list - Pointer to the resource linked list |
| 536 | * output_buffer - Pointer to the user's return buffer |
| 537 | * bytes_consumed - Pointer to where the number of bytes |
| 538 | * used in the output_buffer is returned |
| 539 | * |
| 540 | * RETURN: Status |
| 541 | * |
| 542 | * DESCRIPTION: Take the linked list resource structure and fills in the |
| 543 | * the appropriate bytes in a byte stream |
| 544 | * |
| 545 | ******************************************************************************/ |
| 546 | |
| 547 | acpi_status |
| 548 | acpi_rs_end_depend_fns_stream ( |
| 549 | struct acpi_resource *linked_list, |
| 550 | u8 **output_buffer, |
| 551 | acpi_size *bytes_consumed) |
| 552 | { |
| 553 | u8 *buffer = *output_buffer; |
| 554 | |
| 555 | |
| 556 | ACPI_FUNCTION_TRACE ("rs_end_depend_fns_stream"); |
| 557 | |
| 558 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 559 | /* The descriptor field is static */ |
| 560 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | *buffer = 0x38; |
| 562 | buffer += 1; |
| 563 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 564 | /* Return the number of bytes consumed in this operation */ |
| 565 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer); |
| 567 | return_ACPI_STATUS (AE_OK); |
| 568 | } |
| 569 | |