Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /******************************************************************************* |
| 2 | * |
| 3 | * Module Name: rsaddr - Address resource descriptors (16/32/64) |
| 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 ("rsaddr") |
| 50 | |
| 51 | |
| 52 | /******************************************************************************* |
| 53 | * |
| 54 | * FUNCTION: acpi_rs_address16_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_address16_resource ( |
| 75 | u8 *byte_stream_buffer, |
| 76 | acpi_size *bytes_consumed, |
| 77 | u8 **output_buffer, |
| 78 | acpi_size *structure_size) |
| 79 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | u32 index; |
| 81 | u16 temp16; |
| 82 | u8 temp8; |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 83 | u8 *temp_ptr; |
| 84 | u8 *buffer = byte_stream_buffer; |
| 85 | struct acpi_resource *output_struct = (void *) *output_buffer; |
| 86 | acpi_size struct_size = ACPI_SIZEOF_RESOURCE ( |
| 87 | struct acpi_resource_address16); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | |
| 89 | |
| 90 | ACPI_FUNCTION_TRACE ("rs_address16_resource"); |
| 91 | |
| 92 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 93 | /* Point past the Descriptor to get the number of bytes consumed */ |
| 94 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | buffer += 1; |
| 96 | ACPI_MOVE_16_TO_16 (&temp16, buffer); |
| 97 | |
| 98 | /* Validate minimum descriptor length */ |
| 99 | |
| 100 | if (temp16 < 13) { |
| 101 | return_ACPI_STATUS (AE_AML_BAD_RESOURCE_LENGTH); |
| 102 | } |
| 103 | |
| 104 | *bytes_consumed = temp16 + 3; |
| 105 | output_struct->id = ACPI_RSTYPE_ADDRESS16; |
| 106 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 107 | /* Get the Resource Type (Byte3) */ |
| 108 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | buffer += 2; |
| 110 | temp8 = *buffer; |
| 111 | |
| 112 | /* Values 0-2 and 0xC0-0xFF are valid */ |
| 113 | |
| 114 | if ((temp8 > 2) && (temp8 < 0xC0)) { |
| 115 | return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE); |
| 116 | } |
| 117 | |
| 118 | output_struct->data.address16.resource_type = temp8; |
| 119 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 120 | /* Get the General Flags (Byte4) */ |
| 121 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | buffer += 1; |
| 123 | temp8 = *buffer; |
| 124 | |
| 125 | /* Producer / Consumer */ |
| 126 | |
| 127 | output_struct->data.address16.producer_consumer = temp8 & 0x01; |
| 128 | |
| 129 | /* Decode */ |
| 130 | |
| 131 | output_struct->data.address16.decode = (temp8 >> 1) & 0x01; |
| 132 | |
| 133 | /* Min Address Fixed */ |
| 134 | |
| 135 | output_struct->data.address16.min_address_fixed = (temp8 >> 2) & 0x01; |
| 136 | |
| 137 | /* Max Address Fixed */ |
| 138 | |
| 139 | output_struct->data.address16.max_address_fixed = (temp8 >> 3) & 0x01; |
| 140 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 141 | /* Get the Type Specific Flags (Byte5) */ |
| 142 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | buffer += 1; |
| 144 | temp8 = *buffer; |
| 145 | |
| 146 | if (ACPI_MEMORY_RANGE == output_struct->data.address16.resource_type) { |
| 147 | output_struct->data.address16.attribute.memory.read_write_attribute = |
| 148 | (u16) (temp8 & 0x01); |
| 149 | output_struct->data.address16.attribute.memory.cache_attribute = |
| 150 | (u16) ((temp8 >> 1) & 0x03); |
| 151 | } |
| 152 | else { |
| 153 | if (ACPI_IO_RANGE == output_struct->data.address16.resource_type) { |
| 154 | output_struct->data.address16.attribute.io.range_attribute = |
| 155 | (u16) (temp8 & 0x03); |
| 156 | output_struct->data.address16.attribute.io.translation_attribute = |
| 157 | (u16) ((temp8 >> 4) & 0x03); |
| 158 | } |
| 159 | else { |
| 160 | /* BUS_NUMBER_RANGE == Address16.Data->resource_type */ |
| 161 | /* Nothing needs to be filled in */ |
| 162 | } |
| 163 | } |
| 164 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 165 | /* Get Granularity (Bytes 6-7) */ |
| 166 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | buffer += 1; |
| 168 | ACPI_MOVE_16_TO_32 (&output_struct->data.address16.granularity, buffer); |
| 169 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 170 | /* Get min_address_range (Bytes 8-9) */ |
| 171 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | buffer += 2; |
| 173 | ACPI_MOVE_16_TO_32 (&output_struct->data.address16.min_address_range, buffer); |
| 174 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 175 | /* Get max_address_range (Bytes 10-11) */ |
| 176 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | buffer += 2; |
| 178 | ACPI_MOVE_16_TO_32 (&output_struct->data.address16.max_address_range, buffer); |
| 179 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 180 | /* Get address_translation_offset (Bytes 12-13) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 182 | buffer += 2; |
| 183 | ACPI_MOVE_16_TO_32 (&output_struct->data.address16.address_translation_offset, |
| 184 | buffer); |
| 185 | |
| 186 | /* Get address_length (Bytes 14-15) */ |
| 187 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | buffer += 2; |
| 189 | ACPI_MOVE_16_TO_32 (&output_struct->data.address16.address_length, buffer); |
| 190 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 191 | /* Resource Source Index (if present) */ |
| 192 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | buffer += 2; |
| 194 | |
| 195 | /* |
| 196 | * This will leave us pointing to the Resource Source Index |
| 197 | * If it is present, then save it off and calculate the |
| 198 | * pointer to where the null terminated string goes: |
| 199 | * Each Interrupt takes 32-bits + the 5 bytes of the |
| 200 | * stream that are default. |
| 201 | * |
| 202 | * Note: Some resource descriptors will have an additional null, so |
| 203 | * we add 1 to the length. |
| 204 | */ |
| 205 | if (*bytes_consumed > (16 + 1)) { |
| 206 | /* Dereference the Index */ |
| 207 | |
| 208 | temp8 = *buffer; |
| 209 | output_struct->data.address16.resource_source.index = (u32) temp8; |
| 210 | |
| 211 | /* Point to the String */ |
| 212 | |
| 213 | buffer += 1; |
| 214 | |
| 215 | /* Point the String pointer to the end of this structure */ |
| 216 | |
| 217 | output_struct->data.address16.resource_source.string_ptr = |
| 218 | (char *)((u8 * )output_struct + struct_size); |
| 219 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 220 | temp_ptr = (u8 *) |
| 221 | output_struct->data.address16.resource_source.string_ptr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | |
| 223 | /* Copy the string into the buffer */ |
| 224 | |
| 225 | index = 0; |
| 226 | |
| 227 | while (0x00 != *buffer) { |
| 228 | *temp_ptr = *buffer; |
| 229 | |
| 230 | temp_ptr += 1; |
| 231 | buffer += 1; |
| 232 | index += 1; |
| 233 | } |
| 234 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 235 | /* Add the terminating null */ |
| 236 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | *temp_ptr = 0x00; |
| 238 | |
| 239 | output_struct->data.address16.resource_source.string_length = index + 1; |
| 240 | |
| 241 | /* |
| 242 | * In order for the struct_size to fall on a 32-bit boundary, |
| 243 | * calculate the length of the string and expand the |
| 244 | * struct_size to the next 32-bit boundary. |
| 245 | */ |
| 246 | temp8 = (u8) (index + 1); |
| 247 | struct_size += ACPI_ROUND_UP_to_32_bITS (temp8); |
| 248 | } |
| 249 | else { |
| 250 | output_struct->data.address16.resource_source.index = 0x00; |
| 251 | output_struct->data.address16.resource_source.string_length = 0; |
| 252 | output_struct->data.address16.resource_source.string_ptr = NULL; |
| 253 | } |
| 254 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 255 | /* Set the Length parameter */ |
| 256 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | output_struct->length = (u32) struct_size; |
| 258 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 259 | /* Return the final size of the structure */ |
| 260 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | *structure_size = struct_size; |
| 262 | return_ACPI_STATUS (AE_OK); |
| 263 | } |
| 264 | |
| 265 | |
| 266 | /******************************************************************************* |
| 267 | * |
| 268 | * FUNCTION: acpi_rs_address16_stream |
| 269 | * |
| 270 | * PARAMETERS: linked_list - Pointer to the resource linked list |
| 271 | * output_buffer - Pointer to the user's return buffer |
| 272 | * bytes_consumed - Pointer to where the number of bytes |
| 273 | * used in the output_buffer is returned |
| 274 | * |
| 275 | * RETURN: Status |
| 276 | * |
| 277 | * DESCRIPTION: Take the linked list resource structure and fills in the |
| 278 | * the appropriate bytes in a byte stream |
| 279 | * |
| 280 | ******************************************************************************/ |
| 281 | |
| 282 | acpi_status |
| 283 | acpi_rs_address16_stream ( |
| 284 | struct acpi_resource *linked_list, |
| 285 | u8 **output_buffer, |
| 286 | acpi_size *bytes_consumed) |
| 287 | { |
| 288 | u8 *buffer = *output_buffer; |
| 289 | u8 *length_field; |
| 290 | u8 temp8; |
| 291 | char *temp_pointer = NULL; |
| 292 | acpi_size actual_bytes; |
| 293 | |
| 294 | |
| 295 | ACPI_FUNCTION_TRACE ("rs_address16_stream"); |
| 296 | |
| 297 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 298 | /* The descriptor field is static */ |
| 299 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | *buffer = 0x88; |
| 301 | buffer += 1; |
| 302 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 303 | /* Save a pointer to the Length field - to be filled in later */ |
| 304 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | length_field = buffer; |
| 306 | buffer += 2; |
| 307 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 308 | /* Set the Resource Type (Memory, Io, bus_number) */ |
| 309 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | temp8 = (u8) (linked_list->data.address16.resource_type & 0x03); |
| 311 | *buffer = temp8; |
| 312 | buffer += 1; |
| 313 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 314 | /* Set the general flags */ |
| 315 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | temp8 = (u8) (linked_list->data.address16.producer_consumer & 0x01); |
| 317 | |
| 318 | temp8 |= (linked_list->data.address16.decode & 0x01) << 1; |
| 319 | temp8 |= (linked_list->data.address16.min_address_fixed & 0x01) << 2; |
| 320 | temp8 |= (linked_list->data.address16.max_address_fixed & 0x01) << 3; |
| 321 | |
| 322 | *buffer = temp8; |
| 323 | buffer += 1; |
| 324 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 325 | /* Set the type specific flags */ |
| 326 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | temp8 = 0; |
| 328 | |
| 329 | if (ACPI_MEMORY_RANGE == linked_list->data.address16.resource_type) { |
| 330 | temp8 = (u8) |
| 331 | (linked_list->data.address16.attribute.memory.read_write_attribute & |
| 332 | 0x01); |
| 333 | |
| 334 | temp8 |= |
| 335 | (linked_list->data.address16.attribute.memory.cache_attribute & |
| 336 | 0x03) << 1; |
| 337 | } |
| 338 | else if (ACPI_IO_RANGE == linked_list->data.address16.resource_type) { |
| 339 | temp8 = (u8) |
| 340 | (linked_list->data.address16.attribute.io.range_attribute & |
| 341 | 0x03); |
| 342 | temp8 |= |
| 343 | (linked_list->data.address16.attribute.io.translation_attribute & |
| 344 | 0x03) << 4; |
| 345 | } |
| 346 | |
| 347 | *buffer = temp8; |
| 348 | buffer += 1; |
| 349 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 350 | /* Set the address space granularity */ |
| 351 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | ACPI_MOVE_32_TO_16 (buffer, &linked_list->data.address16.granularity); |
| 353 | buffer += 2; |
| 354 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 355 | /* Set the address range minimum */ |
| 356 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | ACPI_MOVE_32_TO_16 (buffer, &linked_list->data.address16.min_address_range); |
| 358 | buffer += 2; |
| 359 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 360 | /* Set the address range maximum */ |
| 361 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | ACPI_MOVE_32_TO_16 (buffer, &linked_list->data.address16.max_address_range); |
| 363 | buffer += 2; |
| 364 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 365 | /* Set the address translation offset */ |
| 366 | |
| 367 | ACPI_MOVE_32_TO_16 (buffer, |
| 368 | &linked_list->data.address16.address_translation_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | buffer += 2; |
| 370 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 371 | /* Set the address length */ |
| 372 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | ACPI_MOVE_32_TO_16 (buffer, &linked_list->data.address16.address_length); |
| 374 | buffer += 2; |
| 375 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 376 | /* Resource Source Index and Resource Source are optional */ |
| 377 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | if (0 != linked_list->data.address16.resource_source.string_length) { |
| 379 | temp8 = (u8) linked_list->data.address16.resource_source.index; |
| 380 | |
| 381 | *buffer = temp8; |
| 382 | buffer += 1; |
| 383 | |
| 384 | temp_pointer = (char *) buffer; |
| 385 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 386 | /* Copy the string */ |
| 387 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | ACPI_STRCPY (temp_pointer, |
| 389 | linked_list->data.address16.resource_source.string_ptr); |
| 390 | |
| 391 | /* |
| 392 | * Buffer needs to be set to the length of the sting + one for the |
| 393 | * terminating null |
| 394 | */ |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 395 | buffer += (acpi_size)(ACPI_STRLEN ( |
| 396 | linked_list->data.address16.resource_source.string_ptr) + 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | } |
| 398 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 399 | /* Return the number of bytes consumed in this operation */ |
| 400 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | actual_bytes = ACPI_PTR_DIFF (buffer, *output_buffer); |
| 402 | *bytes_consumed = actual_bytes; |
| 403 | |
| 404 | /* |
| 405 | * Set the length field to the number of bytes consumed |
| 406 | * minus the header size (3 bytes) |
| 407 | */ |
| 408 | actual_bytes -= 3; |
| 409 | ACPI_MOVE_SIZE_TO_16 (length_field, &actual_bytes); |
| 410 | return_ACPI_STATUS (AE_OK); |
| 411 | } |
| 412 | |
| 413 | |
| 414 | /******************************************************************************* |
| 415 | * |
| 416 | * FUNCTION: acpi_rs_address32_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_address32_resource ( |
| 437 | u8 *byte_stream_buffer, |
| 438 | acpi_size *bytes_consumed, |
| 439 | u8 **output_buffer, |
| 440 | acpi_size *structure_size) |
| 441 | { |
| 442 | u8 *buffer; |
| 443 | struct acpi_resource *output_struct= (void *) *output_buffer; |
| 444 | u16 temp16; |
| 445 | u8 temp8; |
| 446 | u8 *temp_ptr; |
| 447 | acpi_size struct_size; |
| 448 | u32 index; |
| 449 | |
| 450 | |
| 451 | ACPI_FUNCTION_TRACE ("rs_address32_resource"); |
| 452 | |
| 453 | |
| 454 | buffer = byte_stream_buffer; |
| 455 | struct_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_address32); |
| 456 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 457 | /* Point past the Descriptor to get the number of bytes consumed */ |
| 458 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | buffer += 1; |
| 460 | ACPI_MOVE_16_TO_16 (&temp16, buffer); |
| 461 | |
| 462 | /* Validate minimum descriptor length */ |
| 463 | |
| 464 | if (temp16 < 23) { |
| 465 | return_ACPI_STATUS (AE_AML_BAD_RESOURCE_LENGTH); |
| 466 | } |
| 467 | |
| 468 | *bytes_consumed = temp16 + 3; |
| 469 | output_struct->id = ACPI_RSTYPE_ADDRESS32; |
| 470 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 471 | /* Get the Resource Type (Byte3) */ |
| 472 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | buffer += 2; |
| 474 | temp8 = *buffer; |
| 475 | |
| 476 | /* Values 0-2 and 0xC0-0xFF are valid */ |
| 477 | |
| 478 | if ((temp8 > 2) && (temp8 < 0xC0)) { |
| 479 | return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE); |
| 480 | } |
| 481 | |
| 482 | output_struct->data.address32.resource_type = temp8; |
| 483 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 484 | /* Get the General Flags (Byte4) */ |
| 485 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | buffer += 1; |
| 487 | temp8 = *buffer; |
| 488 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 489 | /* Producer / Consumer */ |
| 490 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | output_struct->data.address32.producer_consumer = temp8 & 0x01; |
| 492 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 493 | /* Decode */ |
| 494 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | output_struct->data.address32.decode = (temp8 >> 1) & 0x01; |
| 496 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 497 | /* Min Address Fixed */ |
| 498 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | output_struct->data.address32.min_address_fixed = (temp8 >> 2) & 0x01; |
| 500 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 501 | /* Max Address Fixed */ |
| 502 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | output_struct->data.address32.max_address_fixed = (temp8 >> 3) & 0x01; |
| 504 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 505 | /* Get the Type Specific Flags (Byte5) */ |
| 506 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | buffer += 1; |
| 508 | temp8 = *buffer; |
| 509 | |
| 510 | if (ACPI_MEMORY_RANGE == output_struct->data.address32.resource_type) { |
| 511 | output_struct->data.address32.attribute.memory.read_write_attribute = |
| 512 | (u16) (temp8 & 0x01); |
| 513 | |
| 514 | output_struct->data.address32.attribute.memory.cache_attribute = |
| 515 | (u16) ((temp8 >> 1) & 0x03); |
| 516 | } |
| 517 | else { |
| 518 | if (ACPI_IO_RANGE == output_struct->data.address32.resource_type) { |
| 519 | output_struct->data.address32.attribute.io.range_attribute = |
| 520 | (u16) (temp8 & 0x03); |
| 521 | output_struct->data.address32.attribute.io.translation_attribute = |
| 522 | (u16) ((temp8 >> 4) & 0x03); |
| 523 | } |
| 524 | else { |
| 525 | /* BUS_NUMBER_RANGE == output_struct->Data.Address32.resource_type */ |
| 526 | /* Nothing needs to be filled in */ |
| 527 | } |
| 528 | } |
| 529 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 530 | /* Get Granularity (Bytes 6-9) */ |
| 531 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 532 | buffer += 1; |
| 533 | ACPI_MOVE_32_TO_32 (&output_struct->data.address32.granularity, buffer); |
| 534 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 535 | /* Get min_address_range (Bytes 10-13) */ |
| 536 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | buffer += 4; |
| 538 | ACPI_MOVE_32_TO_32 (&output_struct->data.address32.min_address_range, buffer); |
| 539 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 540 | /* Get max_address_range (Bytes 14-17) */ |
| 541 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 542 | buffer += 4; |
| 543 | ACPI_MOVE_32_TO_32 (&output_struct->data.address32.max_address_range, buffer); |
| 544 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 545 | /* Get address_translation_offset (Bytes 18-21) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 547 | buffer += 4; |
| 548 | ACPI_MOVE_32_TO_32 (&output_struct->data.address32.address_translation_offset, |
| 549 | buffer); |
| 550 | |
| 551 | /* Get address_length (Bytes 22-25) */ |
| 552 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | buffer += 4; |
| 554 | ACPI_MOVE_32_TO_32 (&output_struct->data.address32.address_length, buffer); |
| 555 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 556 | /* Resource Source Index (if present) */ |
| 557 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | buffer += 4; |
| 559 | |
| 560 | /* |
| 561 | * This will leave us pointing to the Resource Source Index |
| 562 | * If it is present, then save it off and calculate the |
| 563 | * pointer to where the null terminated string goes: |
| 564 | * |
| 565 | * Note: Some resource descriptors will have an additional null, so |
| 566 | * we add 1 to the length. |
| 567 | */ |
| 568 | if (*bytes_consumed > (26 + 1)) { |
| 569 | /* Dereference the Index */ |
| 570 | |
| 571 | temp8 = *buffer; |
| 572 | output_struct->data.address32.resource_source.index = |
| 573 | (u32) temp8; |
| 574 | |
| 575 | /* Point to the String */ |
| 576 | |
| 577 | buffer += 1; |
| 578 | |
| 579 | /* Point the String pointer to the end of this structure */ |
| 580 | |
| 581 | output_struct->data.address32.resource_source.string_ptr = |
| 582 | (char *)((u8 *)output_struct + struct_size); |
| 583 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 584 | temp_ptr = (u8 *) |
| 585 | output_struct->data.address32.resource_source.string_ptr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | |
| 587 | /* Copy the string into the buffer */ |
| 588 | |
| 589 | index = 0; |
| 590 | while (0x00 != *buffer) { |
| 591 | *temp_ptr = *buffer; |
| 592 | |
| 593 | temp_ptr += 1; |
| 594 | buffer += 1; |
| 595 | index += 1; |
| 596 | } |
| 597 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 598 | /* Add the terminating null */ |
| 599 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | *temp_ptr = 0x00; |
| 601 | output_struct->data.address32.resource_source.string_length = index + 1; |
| 602 | |
| 603 | /* |
| 604 | * In order for the struct_size to fall on a 32-bit boundary, |
| 605 | * calculate the length of the string and expand the |
| 606 | * struct_size to the next 32-bit boundary. |
| 607 | */ |
| 608 | temp8 = (u8) (index + 1); |
| 609 | struct_size += ACPI_ROUND_UP_to_32_bITS (temp8); |
| 610 | } |
| 611 | else { |
| 612 | output_struct->data.address32.resource_source.index = 0x00; |
| 613 | output_struct->data.address32.resource_source.string_length = 0; |
| 614 | output_struct->data.address32.resource_source.string_ptr = NULL; |
| 615 | } |
| 616 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 617 | /* Set the Length parameter */ |
| 618 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 619 | output_struct->length = (u32) struct_size; |
| 620 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 621 | /* Return the final size of the structure */ |
| 622 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 623 | *structure_size = struct_size; |
| 624 | return_ACPI_STATUS (AE_OK); |
| 625 | } |
| 626 | |
| 627 | |
| 628 | /******************************************************************************* |
| 629 | * |
| 630 | * FUNCTION: acpi_rs_address32_stream |
| 631 | * |
| 632 | * PARAMETERS: linked_list - Pointer to the resource linked list |
| 633 | * output_buffer - Pointer to the user's return buffer |
| 634 | * bytes_consumed - Pointer to where the number of bytes |
| 635 | * used in the output_buffer is returned |
| 636 | * |
| 637 | * RETURN: Status |
| 638 | * |
| 639 | * DESCRIPTION: Take the linked list resource structure and fills in the |
| 640 | * the appropriate bytes in a byte stream |
| 641 | * |
| 642 | ******************************************************************************/ |
| 643 | |
| 644 | acpi_status |
| 645 | acpi_rs_address32_stream ( |
| 646 | struct acpi_resource *linked_list, |
| 647 | u8 **output_buffer, |
| 648 | acpi_size *bytes_consumed) |
| 649 | { |
| 650 | u8 *buffer; |
| 651 | u16 *length_field; |
| 652 | u8 temp8; |
| 653 | char *temp_pointer; |
| 654 | |
| 655 | |
| 656 | ACPI_FUNCTION_TRACE ("rs_address32_stream"); |
| 657 | |
| 658 | |
| 659 | buffer = *output_buffer; |
| 660 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 661 | /* The descriptor field is static */ |
| 662 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 663 | *buffer = 0x87; |
| 664 | buffer += 1; |
| 665 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 666 | /* Set a pointer to the Length field - to be filled in later */ |
| 667 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | length_field = ACPI_CAST_PTR (u16, buffer); |
| 669 | buffer += 2; |
| 670 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 671 | /* Set the Resource Type (Memory, Io, bus_number) */ |
| 672 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | temp8 = (u8) (linked_list->data.address32.resource_type & 0x03); |
| 674 | |
| 675 | *buffer = temp8; |
| 676 | buffer += 1; |
| 677 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 678 | /* Set the general flags */ |
| 679 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | temp8 = (u8) (linked_list->data.address32.producer_consumer & 0x01); |
| 681 | temp8 |= (linked_list->data.address32.decode & 0x01) << 1; |
| 682 | temp8 |= (linked_list->data.address32.min_address_fixed & 0x01) << 2; |
| 683 | temp8 |= (linked_list->data.address32.max_address_fixed & 0x01) << 3; |
| 684 | |
| 685 | *buffer = temp8; |
| 686 | buffer += 1; |
| 687 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 688 | /* Set the type specific flags */ |
| 689 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | temp8 = 0; |
| 691 | |
| 692 | if (ACPI_MEMORY_RANGE == linked_list->data.address32.resource_type) { |
| 693 | temp8 = (u8) |
| 694 | (linked_list->data.address32.attribute.memory.read_write_attribute & |
| 695 | 0x01); |
| 696 | |
| 697 | temp8 |= |
| 698 | (linked_list->data.address32.attribute.memory.cache_attribute & |
| 699 | 0x03) << 1; |
| 700 | } |
| 701 | else if (ACPI_IO_RANGE == linked_list->data.address32.resource_type) { |
| 702 | temp8 = (u8) |
| 703 | (linked_list->data.address32.attribute.io.range_attribute & |
| 704 | 0x03); |
| 705 | temp8 |= |
| 706 | (linked_list->data.address32.attribute.io.translation_attribute & |
| 707 | 0x03) << 4; |
| 708 | } |
| 709 | |
| 710 | *buffer = temp8; |
| 711 | buffer += 1; |
| 712 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 713 | /* Set the address space granularity */ |
| 714 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | ACPI_MOVE_32_TO_32 (buffer, &linked_list->data.address32.granularity); |
| 716 | buffer += 4; |
| 717 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 718 | /* Set the address range minimum */ |
| 719 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | ACPI_MOVE_32_TO_32 (buffer, &linked_list->data.address32.min_address_range); |
| 721 | buffer += 4; |
| 722 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 723 | /* Set the address range maximum */ |
| 724 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | ACPI_MOVE_32_TO_32 (buffer, &linked_list->data.address32.max_address_range); |
| 726 | buffer += 4; |
| 727 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 728 | /* Set the address translation offset */ |
| 729 | |
| 730 | ACPI_MOVE_32_TO_32 (buffer, |
| 731 | &linked_list->data.address32.address_translation_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | buffer += 4; |
| 733 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 734 | /* Set the address length */ |
| 735 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 736 | ACPI_MOVE_32_TO_32 (buffer, &linked_list->data.address32.address_length); |
| 737 | buffer += 4; |
| 738 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 739 | /* Resource Source Index and Resource Source are optional */ |
| 740 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | if (0 != linked_list->data.address32.resource_source.string_length) { |
| 742 | temp8 = (u8) linked_list->data.address32.resource_source.index; |
| 743 | |
| 744 | *buffer = temp8; |
| 745 | buffer += 1; |
| 746 | |
| 747 | temp_pointer = (char *) buffer; |
| 748 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 749 | /* Copy the string */ |
| 750 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 751 | ACPI_STRCPY (temp_pointer, |
| 752 | linked_list->data.address32.resource_source.string_ptr); |
| 753 | |
| 754 | /* |
| 755 | * Buffer needs to be set to the length of the sting + one for the |
| 756 | * terminating null |
| 757 | */ |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 758 | buffer += (acpi_size)(ACPI_STRLEN ( |
| 759 | linked_list->data.address32.resource_source.string_ptr) + 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | } |
| 761 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 762 | /* Return the number of bytes consumed in this operation */ |
| 763 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer); |
| 765 | |
| 766 | /* |
| 767 | * Set the length field to the number of bytes consumed |
| 768 | * minus the header size (3 bytes) |
| 769 | */ |
| 770 | *length_field = (u16) (*bytes_consumed - 3); |
| 771 | return_ACPI_STATUS (AE_OK); |
| 772 | } |
| 773 | |
| 774 | |
| 775 | /******************************************************************************* |
| 776 | * |
| 777 | * FUNCTION: acpi_rs_address64_resource |
| 778 | * |
| 779 | * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte |
| 780 | * stream |
| 781 | * bytes_consumed - Pointer to where the number of bytes |
| 782 | * consumed the byte_stream_buffer is |
| 783 | * returned |
| 784 | * output_buffer - Pointer to the return data buffer |
| 785 | * structure_size - Pointer to where the number of bytes |
| 786 | * in the return data struct is returned |
| 787 | * |
| 788 | * RETURN: Status |
| 789 | * |
| 790 | * DESCRIPTION: Take the resource byte stream and fill out the appropriate |
| 791 | * structure pointed to by the output_buffer. Return the |
| 792 | * number of bytes consumed from the byte stream. |
| 793 | * |
| 794 | ******************************************************************************/ |
| 795 | |
| 796 | acpi_status |
| 797 | acpi_rs_address64_resource ( |
| 798 | u8 *byte_stream_buffer, |
| 799 | acpi_size *bytes_consumed, |
| 800 | u8 **output_buffer, |
| 801 | acpi_size *structure_size) |
| 802 | { |
| 803 | u8 *buffer; |
| 804 | struct acpi_resource *output_struct = (void *) *output_buffer; |
| 805 | u16 temp16; |
| 806 | u8 temp8; |
| 807 | u8 resource_type; |
| 808 | u8 *temp_ptr; |
| 809 | acpi_size struct_size; |
| 810 | u32 index; |
| 811 | |
| 812 | |
| 813 | ACPI_FUNCTION_TRACE ("rs_address64_resource"); |
| 814 | |
| 815 | |
| 816 | buffer = byte_stream_buffer; |
| 817 | struct_size = ACPI_SIZEOF_RESOURCE (struct acpi_resource_address64); |
| 818 | resource_type = *buffer; |
| 819 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 820 | /* Point past the Descriptor to get the number of bytes consumed */ |
| 821 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 822 | buffer += 1; |
| 823 | ACPI_MOVE_16_TO_16 (&temp16, buffer); |
| 824 | |
| 825 | /* Validate minimum descriptor length */ |
| 826 | |
| 827 | if (temp16 < 43) { |
| 828 | return_ACPI_STATUS (AE_AML_BAD_RESOURCE_LENGTH); |
| 829 | } |
| 830 | |
| 831 | *bytes_consumed = temp16 + 3; |
| 832 | output_struct->id = ACPI_RSTYPE_ADDRESS64; |
| 833 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 834 | /* Get the Resource Type (Byte3) */ |
| 835 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 836 | buffer += 2; |
| 837 | temp8 = *buffer; |
| 838 | |
| 839 | /* Values 0-2 and 0xC0-0xFF are valid */ |
| 840 | |
| 841 | if ((temp8 > 2) && (temp8 < 0xC0)) { |
| 842 | return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE); |
| 843 | } |
| 844 | |
| 845 | output_struct->data.address64.resource_type = temp8; |
| 846 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 847 | /* Get the General Flags (Byte4) */ |
| 848 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 849 | buffer += 1; |
| 850 | temp8 = *buffer; |
| 851 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 852 | /* Producer / Consumer */ |
| 853 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 854 | output_struct->data.address64.producer_consumer = temp8 & 0x01; |
| 855 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 856 | /* Decode */ |
| 857 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 858 | output_struct->data.address64.decode = (temp8 >> 1) & 0x01; |
| 859 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 860 | /* Min Address Fixed */ |
| 861 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | output_struct->data.address64.min_address_fixed = (temp8 >> 2) & 0x01; |
| 863 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 864 | /* Max Address Fixed */ |
| 865 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | output_struct->data.address64.max_address_fixed = (temp8 >> 3) & 0x01; |
| 867 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 868 | /* Get the Type Specific Flags (Byte5) */ |
| 869 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 870 | buffer += 1; |
| 871 | temp8 = *buffer; |
| 872 | |
| 873 | if (ACPI_MEMORY_RANGE == output_struct->data.address64.resource_type) { |
| 874 | output_struct->data.address64.attribute.memory.read_write_attribute = |
| 875 | (u16) (temp8 & 0x01); |
| 876 | |
| 877 | output_struct->data.address64.attribute.memory.cache_attribute = |
| 878 | (u16) ((temp8 >> 1) & 0x03); |
| 879 | } |
| 880 | else { |
| 881 | if (ACPI_IO_RANGE == output_struct->data.address64.resource_type) { |
| 882 | output_struct->data.address64.attribute.io.range_attribute = |
| 883 | (u16) (temp8 & 0x03); |
| 884 | output_struct->data.address64.attribute.io.translation_attribute = |
| 885 | (u16) ((temp8 >> 4) & 0x03); |
| 886 | } |
| 887 | else { |
| 888 | /* BUS_NUMBER_RANGE == output_struct->Data.Address64.resource_type */ |
| 889 | /* Nothing needs to be filled in */ |
| 890 | } |
| 891 | } |
| 892 | |
| 893 | if (resource_type == ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE) { |
| 894 | /* Move past revision_id and Reserved byte */ |
| 895 | |
| 896 | buffer += 2; |
| 897 | } |
| 898 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 899 | /* Get Granularity (Bytes 6-13) or (Bytes 8-15) */ |
| 900 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 901 | buffer += 1; |
| 902 | ACPI_MOVE_64_TO_64 (&output_struct->data.address64.granularity, buffer); |
| 903 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 904 | /* Get min_address_range (Bytes 14-21) or (Bytes 16-23) */ |
| 905 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 906 | buffer += 8; |
| 907 | ACPI_MOVE_64_TO_64 (&output_struct->data.address64.min_address_range, buffer); |
| 908 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 909 | /* Get max_address_range (Bytes 22-29) or (Bytes 24-31) */ |
| 910 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 911 | buffer += 8; |
| 912 | ACPI_MOVE_64_TO_64 (&output_struct->data.address64.max_address_range, buffer); |
| 913 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 914 | /* Get address_translation_offset (Bytes 30-37) or (Bytes 32-39) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 915 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 916 | buffer += 8; |
| 917 | ACPI_MOVE_64_TO_64 (&output_struct->data.address64.address_translation_offset, |
| 918 | buffer); |
| 919 | |
| 920 | /* Get address_length (Bytes 38-45) or (Bytes 40-47) */ |
| 921 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 922 | buffer += 8; |
| 923 | ACPI_MOVE_64_TO_64 (&output_struct->data.address64.address_length, buffer); |
| 924 | |
| 925 | output_struct->data.address64.resource_source.index = 0x00; |
| 926 | output_struct->data.address64.resource_source.string_length = 0; |
| 927 | output_struct->data.address64.resource_source.string_ptr = NULL; |
| 928 | |
| 929 | if (resource_type == ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE) { |
| 930 | /* Get type_specific_attribute (Bytes 48-55) */ |
| 931 | |
| 932 | buffer += 8; |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 933 | ACPI_MOVE_64_TO_64 ( |
| 934 | &output_struct->data.address64.type_specific_attributes, |
| 935 | buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 936 | } |
| 937 | else { |
| 938 | output_struct->data.address64.type_specific_attributes = 0; |
| 939 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 940 | /* Resource Source Index (if present) */ |
| 941 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 942 | buffer += 8; |
| 943 | |
| 944 | /* |
| 945 | * This will leave us pointing to the Resource Source Index |
| 946 | * If it is present, then save it off and calculate the |
| 947 | * pointer to where the null terminated string goes: |
| 948 | * Each Interrupt takes 32-bits + the 5 bytes of the |
| 949 | * stream that are default. |
| 950 | * |
| 951 | * Note: Some resource descriptors will have an additional null, so |
| 952 | * we add 1 to the length. |
| 953 | */ |
| 954 | if (*bytes_consumed > (46 + 1)) { |
| 955 | /* Dereference the Index */ |
| 956 | |
| 957 | temp8 = *buffer; |
| 958 | output_struct->data.address64.resource_source.index = |
| 959 | (u32) temp8; |
| 960 | |
| 961 | /* Point to the String */ |
| 962 | |
| 963 | buffer += 1; |
| 964 | |
| 965 | /* Point the String pointer to the end of this structure */ |
| 966 | |
| 967 | output_struct->data.address64.resource_source.string_ptr = |
| 968 | (char *)((u8 *)output_struct + struct_size); |
| 969 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 970 | temp_ptr = (u8 *) |
| 971 | output_struct->data.address64.resource_source.string_ptr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 972 | |
| 973 | /* Copy the string into the buffer */ |
| 974 | |
| 975 | index = 0; |
| 976 | while (0x00 != *buffer) { |
| 977 | *temp_ptr = *buffer; |
| 978 | |
| 979 | temp_ptr += 1; |
| 980 | buffer += 1; |
| 981 | index += 1; |
| 982 | } |
| 983 | |
| 984 | /* |
| 985 | * Add the terminating null |
| 986 | */ |
| 987 | *temp_ptr = 0x00; |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 988 | output_struct->data.address64.resource_source.string_length = |
| 989 | index + 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 990 | |
| 991 | /* |
| 992 | * In order for the struct_size to fall on a 32-bit boundary, |
| 993 | * calculate the length of the string and expand the |
| 994 | * struct_size to the next 32-bit boundary. |
| 995 | */ |
| 996 | temp8 = (u8) (index + 1); |
| 997 | struct_size += ACPI_ROUND_UP_to_32_bITS (temp8); |
| 998 | } |
| 999 | } |
| 1000 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 1001 | /* Set the Length parameter */ |
| 1002 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1003 | output_struct->length = (u32) struct_size; |
| 1004 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 1005 | /* Return the final size of the structure */ |
| 1006 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1007 | *structure_size = struct_size; |
| 1008 | return_ACPI_STATUS (AE_OK); |
| 1009 | } |
| 1010 | |
| 1011 | |
| 1012 | /******************************************************************************* |
| 1013 | * |
| 1014 | * FUNCTION: acpi_rs_address64_stream |
| 1015 | * |
| 1016 | * PARAMETERS: linked_list - Pointer to the resource linked list |
| 1017 | * output_buffer - Pointer to the user's return buffer |
| 1018 | * bytes_consumed - Pointer to where the number of bytes |
| 1019 | * used in the output_buffer is returned |
| 1020 | * |
| 1021 | * RETURN: Status |
| 1022 | * |
| 1023 | * DESCRIPTION: Take the linked list resource structure and fills in the |
| 1024 | * the appropriate bytes in a byte stream |
| 1025 | * |
| 1026 | ******************************************************************************/ |
| 1027 | |
| 1028 | acpi_status |
| 1029 | acpi_rs_address64_stream ( |
| 1030 | struct acpi_resource *linked_list, |
| 1031 | u8 **output_buffer, |
| 1032 | acpi_size *bytes_consumed) |
| 1033 | { |
| 1034 | u8 *buffer; |
| 1035 | u16 *length_field; |
| 1036 | u8 temp8; |
| 1037 | char *temp_pointer; |
| 1038 | |
| 1039 | |
| 1040 | ACPI_FUNCTION_TRACE ("rs_address64_stream"); |
| 1041 | |
| 1042 | |
| 1043 | buffer = *output_buffer; |
| 1044 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 1045 | /* The descriptor field is static */ |
| 1046 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1047 | *buffer = 0x8A; |
| 1048 | buffer += 1; |
| 1049 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 1050 | /* Set a pointer to the Length field - to be filled in later */ |
| 1051 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1052 | length_field = ACPI_CAST_PTR (u16, buffer); |
| 1053 | buffer += 2; |
| 1054 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 1055 | /* Set the Resource Type (Memory, Io, bus_number) */ |
| 1056 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1057 | temp8 = (u8) (linked_list->data.address64.resource_type & 0x03); |
| 1058 | |
| 1059 | *buffer = temp8; |
| 1060 | buffer += 1; |
| 1061 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 1062 | /* Set the general flags */ |
| 1063 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1064 | temp8 = (u8) (linked_list->data.address64.producer_consumer & 0x01); |
| 1065 | temp8 |= (linked_list->data.address64.decode & 0x01) << 1; |
| 1066 | temp8 |= (linked_list->data.address64.min_address_fixed & 0x01) << 2; |
| 1067 | temp8 |= (linked_list->data.address64.max_address_fixed & 0x01) << 3; |
| 1068 | |
| 1069 | *buffer = temp8; |
| 1070 | buffer += 1; |
| 1071 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 1072 | /* Set the type specific flags */ |
| 1073 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1074 | temp8 = 0; |
| 1075 | |
| 1076 | if (ACPI_MEMORY_RANGE == linked_list->data.address64.resource_type) { |
| 1077 | temp8 = (u8) |
| 1078 | (linked_list->data.address64.attribute.memory.read_write_attribute & |
| 1079 | 0x01); |
| 1080 | |
| 1081 | temp8 |= |
| 1082 | (linked_list->data.address64.attribute.memory.cache_attribute & |
| 1083 | 0x03) << 1; |
| 1084 | } |
| 1085 | else if (ACPI_IO_RANGE == linked_list->data.address64.resource_type) { |
| 1086 | temp8 = (u8) |
| 1087 | (linked_list->data.address64.attribute.io.range_attribute & |
| 1088 | 0x03); |
| 1089 | temp8 |= |
| 1090 | (linked_list->data.address64.attribute.io.range_attribute & |
| 1091 | 0x03) << 4; |
| 1092 | } |
| 1093 | |
| 1094 | *buffer = temp8; |
| 1095 | buffer += 1; |
| 1096 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 1097 | /* Set the address space granularity */ |
| 1098 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1099 | ACPI_MOVE_64_TO_64 (buffer, &linked_list->data.address64.granularity); |
| 1100 | buffer += 8; |
| 1101 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 1102 | /* Set the address range minimum */ |
| 1103 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1104 | ACPI_MOVE_64_TO_64 (buffer, &linked_list->data.address64.min_address_range); |
| 1105 | buffer += 8; |
| 1106 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 1107 | /* Set the address range maximum */ |
| 1108 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1109 | ACPI_MOVE_64_TO_64 (buffer, &linked_list->data.address64.max_address_range); |
| 1110 | buffer += 8; |
| 1111 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 1112 | /* Set the address translation offset */ |
| 1113 | |
| 1114 | ACPI_MOVE_64_TO_64 (buffer, |
| 1115 | &linked_list->data.address64.address_translation_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1116 | buffer += 8; |
| 1117 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 1118 | /* Set the address length */ |
| 1119 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1120 | ACPI_MOVE_64_TO_64 (buffer, &linked_list->data.address64.address_length); |
| 1121 | buffer += 8; |
| 1122 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 1123 | /* Resource Source Index and Resource Source are optional */ |
| 1124 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1125 | if (0 != linked_list->data.address64.resource_source.string_length) { |
| 1126 | temp8 = (u8) linked_list->data.address64.resource_source.index; |
| 1127 | |
| 1128 | *buffer = temp8; |
| 1129 | buffer += 1; |
| 1130 | |
| 1131 | temp_pointer = (char *) buffer; |
| 1132 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 1133 | /* Copy the string */ |
| 1134 | |
| 1135 | ACPI_STRCPY (temp_pointer, |
| 1136 | linked_list->data.address64.resource_source.string_ptr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1137 | |
| 1138 | /* |
| 1139 | * Buffer needs to be set to the length of the sting + one for the |
| 1140 | * terminating null |
| 1141 | */ |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 1142 | buffer += (acpi_size)(ACPI_STRLEN ( |
| 1143 | linked_list->data.address64.resource_source.string_ptr) + 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1144 | } |
| 1145 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame^] | 1146 | /* Return the number of bytes consumed in this operation */ |
| 1147 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1148 | *bytes_consumed = ACPI_PTR_DIFF (buffer, *output_buffer); |
| 1149 | |
| 1150 | /* |
| 1151 | * Set the length field to the number of bytes consumed |
| 1152 | * minus the header size (3 bytes) |
| 1153 | */ |
| 1154 | *length_field = (u16) (*bytes_consumed - 3); |
| 1155 | return_ACPI_STATUS (AE_OK); |
| 1156 | } |
| 1157 | |