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 | /* |
Bob Moore | 6c9deb7 | 2007-02-02 19:48:24 +0300 | [diff] [blame] | 8 | * Copyright (C) 2000 - 2007, R. Byron Moore |
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/acresrc.h> |
| 46 | |
| 47 | #define _COMPONENT ACPI_RESOURCES |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 48 | ACPI_MODULE_NAME("rsmisc") |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 49 | #define INIT_RESOURCE_TYPE(i) i->resource_offset |
| 50 | #define INIT_RESOURCE_LENGTH(i) i->aml_offset |
| 51 | #define INIT_TABLE_LENGTH(i) i->value |
| 52 | #define COMPARE_OPCODE(i) i->resource_offset |
| 53 | #define COMPARE_TARGET(i) i->aml_offset |
| 54 | #define COMPARE_VALUE(i) i->value |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | /******************************************************************************* |
| 56 | * |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 57 | * FUNCTION: acpi_rs_convert_aml_to_resource |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | * |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 59 | * PARAMETERS: Resource - Pointer to the resource descriptor |
| 60 | * Aml - Where the AML descriptor is returned |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 61 | * Info - Pointer to appropriate conversion table |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | * |
| 63 | * RETURN: Status |
| 64 | * |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 65 | * DESCRIPTION: Convert an external AML resource descriptor to the corresponding |
| 66 | * internal resource descriptor |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | * |
| 68 | ******************************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | acpi_status |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 70 | acpi_rs_convert_aml_to_resource(struct acpi_resource *resource, |
| 71 | union aml_resource *aml, |
| 72 | struct acpi_rsconvert_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | { |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 74 | acpi_rs_length aml_resource_length; |
| 75 | void *source; |
| 76 | void *destination; |
| 77 | char *target; |
| 78 | u8 count; |
| 79 | u8 flags_mode = FALSE; |
| 80 | u16 item_count = 0; |
| 81 | u16 temp16 = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 83 | ACPI_FUNCTION_TRACE(rs_convert_aml_to_resource); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 85 | if (((acpi_native_uint) resource) & 0x3) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 86 | |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 87 | /* Each internal resource struct is expected to be 32-bit aligned */ |
| 88 | |
| 89 | ACPI_WARNING((AE_INFO, |
| 90 | "Misaligned resource pointer (get): %p Type %2.2X Len %X", |
| 91 | resource, resource->type, resource->length)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | } |
| 93 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 94 | /* Extract the resource Length field (does not include header length) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 96 | aml_resource_length = acpi_ut_get_resource_length(aml); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | |
| 98 | /* |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 99 | * First table entry must be ACPI_RSC_INITxxx and must contain the |
| 100 | * table length (# of table entries) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | */ |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 102 | count = INIT_TABLE_LENGTH(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 104 | while (count) { |
| 105 | /* |
| 106 | * Source is the external AML byte stream buffer, |
| 107 | * destination is the internal resource descriptor |
| 108 | */ |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 109 | source = ACPI_ADD_PTR(void, aml, info->aml_offset); |
| 110 | destination = |
| 111 | ACPI_ADD_PTR(void, resource, info->resource_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 113 | switch (info->opcode) { |
| 114 | case ACPI_RSC_INITGET: |
| 115 | /* |
| 116 | * Get the resource type and the initial (minimum) length |
| 117 | */ |
| 118 | ACPI_MEMSET(resource, 0, INIT_RESOURCE_LENGTH(info)); |
| 119 | resource->type = INIT_RESOURCE_TYPE(info); |
| 120 | resource->length = INIT_RESOURCE_LENGTH(info); |
| 121 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 123 | case ACPI_RSC_INITSET: |
| 124 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 126 | case ACPI_RSC_FLAGINIT: |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 127 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 128 | flags_mode = TRUE; |
| 129 | break; |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 130 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 131 | case ACPI_RSC_1BITFLAG: |
| 132 | /* |
| 133 | * Mask and shift the flag bit |
| 134 | */ |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 135 | ACPI_SET8(destination) = (u8) |
| 136 | ((ACPI_GET8(source) >> info->value) & 0x01); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 137 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 139 | case ACPI_RSC_2BITFLAG: |
| 140 | /* |
| 141 | * Mask and shift the flag bits |
| 142 | */ |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 143 | ACPI_SET8(destination) = (u8) |
| 144 | ((ACPI_GET8(source) >> info->value) & 0x03); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 145 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 147 | case ACPI_RSC_COUNT: |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 148 | |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 149 | item_count = ACPI_GET8(source); |
| 150 | ACPI_SET8(destination) = (u8) item_count; |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 151 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 152 | resource->length = resource->length + |
| 153 | (info->value * (item_count - 1)); |
| 154 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 156 | case ACPI_RSC_COUNT16: |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 157 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 158 | item_count = aml_resource_length; |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 159 | ACPI_SET16(destination) = item_count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 161 | resource->length = resource->length + |
| 162 | (info->value * (item_count - 1)); |
| 163 | break; |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 164 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 165 | case ACPI_RSC_LENGTH: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 167 | resource->length = resource->length + info->value; |
| 168 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 170 | case ACPI_RSC_MOVE8: |
| 171 | case ACPI_RSC_MOVE16: |
| 172 | case ACPI_RSC_MOVE32: |
| 173 | case ACPI_RSC_MOVE64: |
| 174 | /* |
| 175 | * Raw data move. Use the Info value field unless item_count has |
| 176 | * been previously initialized via a COUNT opcode |
| 177 | */ |
| 178 | if (info->value) { |
| 179 | item_count = info->value; |
| 180 | } |
| 181 | acpi_rs_move_data(destination, source, item_count, |
| 182 | info->opcode); |
| 183 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 185 | case ACPI_RSC_SET8: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 187 | ACPI_MEMSET(destination, info->aml_offset, info->value); |
| 188 | break; |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 189 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 190 | case ACPI_RSC_DATA8: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 192 | target = ACPI_ADD_PTR(char, resource, info->value); |
| 193 | ACPI_MEMCPY(destination, source, ACPI_GET16(target)); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 194 | break; |
| 195 | |
| 196 | case ACPI_RSC_ADDRESS: |
| 197 | /* |
| 198 | * Common handler for address descriptor flags |
| 199 | */ |
| 200 | if (!acpi_rs_get_address_common(resource, aml)) { |
| 201 | return_ACPI_STATUS |
| 202 | (AE_AML_INVALID_RESOURCE_TYPE); |
| 203 | } |
| 204 | break; |
| 205 | |
| 206 | case ACPI_RSC_SOURCE: |
| 207 | /* |
| 208 | * Optional resource_source (Index and String) |
| 209 | */ |
| 210 | resource->length += |
| 211 | acpi_rs_get_resource_source(aml_resource_length, |
| 212 | info->value, |
| 213 | destination, aml, NULL); |
| 214 | break; |
| 215 | |
| 216 | case ACPI_RSC_SOURCEX: |
| 217 | /* |
| 218 | * Optional resource_source (Index and String). This is the more |
| 219 | * complicated case used by the Interrupt() macro |
| 220 | */ |
| 221 | target = |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 222 | ACPI_ADD_PTR(char, resource, |
| 223 | info->aml_offset + (item_count * 4)); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 224 | |
| 225 | resource->length += |
| 226 | acpi_rs_get_resource_source(aml_resource_length, |
| 227 | (acpi_rs_length) (((item_count - 1) * sizeof(u32)) + info->value), destination, aml, target); |
| 228 | break; |
| 229 | |
| 230 | case ACPI_RSC_BITMASK: |
| 231 | /* |
| 232 | * 8-bit encoded bitmask (DMA macro) |
| 233 | */ |
| 234 | item_count = |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 235 | acpi_rs_decode_bitmask(ACPI_GET8(source), |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 236 | destination); |
| 237 | if (item_count) { |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 238 | resource->length += (item_count - 1); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 239 | } |
| 240 | |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 241 | target = ACPI_ADD_PTR(char, resource, info->value); |
| 242 | ACPI_SET8(target) = (u8) item_count; |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 243 | break; |
| 244 | |
| 245 | case ACPI_RSC_BITMASK16: |
| 246 | /* |
| 247 | * 16-bit encoded bitmask (IRQ macro) |
| 248 | */ |
| 249 | ACPI_MOVE_16_TO_16(&temp16, source); |
| 250 | |
| 251 | item_count = |
| 252 | acpi_rs_decode_bitmask(temp16, destination); |
| 253 | if (item_count) { |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 254 | resource->length += (item_count - 1); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 255 | } |
| 256 | |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 257 | target = ACPI_ADD_PTR(char, resource, info->value); |
| 258 | ACPI_SET8(target) = (u8) item_count; |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 259 | break; |
| 260 | |
| 261 | case ACPI_RSC_EXIT_NE: |
| 262 | /* |
| 263 | * Control - Exit conversion if not equal |
| 264 | */ |
| 265 | switch (info->resource_offset) { |
| 266 | case ACPI_RSC_COMPARE_AML_LENGTH: |
| 267 | if (aml_resource_length != info->value) { |
| 268 | goto exit; |
| 269 | } |
| 270 | break; |
| 271 | |
| 272 | case ACPI_RSC_COMPARE_VALUE: |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 273 | if (ACPI_GET8(source) != info->value) { |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 274 | goto exit; |
| 275 | } |
| 276 | break; |
| 277 | |
| 278 | default: |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 279 | |
| 280 | ACPI_ERROR((AE_INFO, |
| 281 | "Invalid conversion sub-opcode")); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 282 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
| 283 | } |
| 284 | break; |
| 285 | |
| 286 | default: |
| 287 | |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 288 | ACPI_ERROR((AE_INFO, "Invalid conversion opcode")); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 289 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | } |
| 291 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 292 | count--; |
| 293 | info++; |
| 294 | } |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 295 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 296 | exit: |
| 297 | if (!flags_mode) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 298 | |
Bob Moore | ea936b7 | 2006-02-17 00:00:00 -0500 | [diff] [blame] | 299 | /* Round the resource struct length up to the next boundary (32 or 64) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 301 | resource->length = |
Bob Moore | ea936b7 | 2006-02-17 00:00:00 -0500 | [diff] [blame] | 302 | (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 303 | } |
| 304 | return_ACPI_STATUS(AE_OK); |
| 305 | } |
| 306 | |
| 307 | /******************************************************************************* |
| 308 | * |
| 309 | * FUNCTION: acpi_rs_convert_resource_to_aml |
| 310 | * |
| 311 | * PARAMETERS: Resource - Pointer to the resource descriptor |
| 312 | * Aml - Where the AML descriptor is returned |
| 313 | * Info - Pointer to appropriate conversion table |
| 314 | * |
| 315 | * RETURN: Status |
| 316 | * |
| 317 | * DESCRIPTION: Convert an internal resource descriptor to the corresponding |
| 318 | * external AML resource descriptor. |
| 319 | * |
| 320 | ******************************************************************************/ |
| 321 | |
| 322 | acpi_status |
| 323 | acpi_rs_convert_resource_to_aml(struct acpi_resource *resource, |
| 324 | union aml_resource *aml, |
| 325 | struct acpi_rsconvert_info *info) |
| 326 | { |
| 327 | void *source = NULL; |
| 328 | void *destination; |
| 329 | acpi_rsdesc_size aml_length = 0; |
| 330 | u8 count; |
| 331 | u16 temp16 = 0; |
| 332 | u16 item_count = 0; |
| 333 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 334 | ACPI_FUNCTION_TRACE(rs_convert_resource_to_aml); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 335 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 336 | /* |
| 337 | * First table entry must be ACPI_RSC_INITxxx and must contain the |
| 338 | * table length (# of table entries) |
| 339 | */ |
| 340 | count = INIT_TABLE_LENGTH(info); |
| 341 | |
| 342 | while (count) { |
| 343 | /* |
| 344 | * Source is the internal resource descriptor, |
| 345 | * destination is the external AML byte stream buffer |
| 346 | */ |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 347 | source = ACPI_ADD_PTR(void, resource, info->resource_offset); |
| 348 | destination = ACPI_ADD_PTR(void, aml, info->aml_offset); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 349 | |
| 350 | switch (info->opcode) { |
| 351 | case ACPI_RSC_INITSET: |
| 352 | |
| 353 | ACPI_MEMSET(aml, 0, INIT_RESOURCE_LENGTH(info)); |
| 354 | aml_length = INIT_RESOURCE_LENGTH(info); |
| 355 | acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info), |
| 356 | aml_length, aml); |
| 357 | break; |
| 358 | |
| 359 | case ACPI_RSC_INITGET: |
| 360 | break; |
| 361 | |
| 362 | case ACPI_RSC_FLAGINIT: |
| 363 | /* |
| 364 | * Clear the flag byte |
| 365 | */ |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 366 | ACPI_SET8(destination) = 0; |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 367 | break; |
| 368 | |
| 369 | case ACPI_RSC_1BITFLAG: |
| 370 | /* |
| 371 | * Mask and shift the flag bit |
| 372 | */ |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 373 | ACPI_SET8(destination) |= (u8) |
| 374 | ((ACPI_GET8(source) & 0x01) << info->value); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 375 | break; |
| 376 | |
| 377 | case ACPI_RSC_2BITFLAG: |
| 378 | /* |
| 379 | * Mask and shift the flag bits |
| 380 | */ |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 381 | ACPI_SET8(destination) |= (u8) |
| 382 | ((ACPI_GET8(source) & 0x03) << info->value); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 383 | break; |
| 384 | |
| 385 | case ACPI_RSC_COUNT: |
| 386 | |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 387 | item_count = ACPI_GET8(source); |
| 388 | ACPI_SET8(destination) = (u8) item_count; |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 389 | |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 390 | aml_length = |
| 391 | (u16) (aml_length + |
| 392 | (info->value * (item_count - 1))); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 393 | break; |
| 394 | |
| 395 | case ACPI_RSC_COUNT16: |
| 396 | |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 397 | item_count = ACPI_GET16(source); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 398 | aml_length = (u16) (aml_length + item_count); |
| 399 | acpi_rs_set_resource_length(aml_length, aml); |
| 400 | break; |
| 401 | |
| 402 | case ACPI_RSC_LENGTH: |
| 403 | |
| 404 | acpi_rs_set_resource_length(info->value, aml); |
| 405 | break; |
| 406 | |
| 407 | case ACPI_RSC_MOVE8: |
| 408 | case ACPI_RSC_MOVE16: |
| 409 | case ACPI_RSC_MOVE32: |
| 410 | case ACPI_RSC_MOVE64: |
| 411 | |
| 412 | if (info->value) { |
| 413 | item_count = info->value; |
| 414 | } |
| 415 | acpi_rs_move_data(destination, source, item_count, |
| 416 | info->opcode); |
| 417 | break; |
| 418 | |
| 419 | case ACPI_RSC_ADDRESS: |
| 420 | |
| 421 | /* Set the Resource Type, General Flags, and Type-Specific Flags */ |
| 422 | |
| 423 | acpi_rs_set_address_common(aml, resource); |
| 424 | break; |
| 425 | |
| 426 | case ACPI_RSC_SOURCEX: |
| 427 | /* |
| 428 | * Optional resource_source (Index and String) |
| 429 | */ |
| 430 | aml_length = |
Len Brown | fd35094 | 2007-05-09 23:34:35 -0400 | [diff] [blame] | 431 | acpi_rs_set_resource_source(aml, (acpi_rs_length) |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 432 | aml_length, source); |
| 433 | acpi_rs_set_resource_length(aml_length, aml); |
| 434 | break; |
| 435 | |
| 436 | case ACPI_RSC_SOURCE: |
| 437 | /* |
| 438 | * Optional resource_source (Index and String). This is the more |
| 439 | * complicated case used by the Interrupt() macro |
| 440 | */ |
| 441 | aml_length = |
| 442 | acpi_rs_set_resource_source(aml, info->value, |
| 443 | source); |
| 444 | acpi_rs_set_resource_length(aml_length, aml); |
| 445 | break; |
| 446 | |
| 447 | case ACPI_RSC_BITMASK: |
| 448 | /* |
| 449 | * 8-bit encoded bitmask (DMA macro) |
| 450 | */ |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 451 | ACPI_SET8(destination) = (u8) |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 452 | acpi_rs_encode_bitmask(source, |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 453 | *ACPI_ADD_PTR(u8, resource, |
| 454 | info->value)); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 455 | break; |
| 456 | |
| 457 | case ACPI_RSC_BITMASK16: |
| 458 | /* |
| 459 | * 16-bit encoded bitmask (IRQ macro) |
| 460 | */ |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 461 | temp16 = acpi_rs_encode_bitmask(source, |
| 462 | *ACPI_ADD_PTR(u8, |
| 463 | resource, |
| 464 | info-> |
| 465 | value)); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 466 | ACPI_MOVE_16_TO_16(destination, &temp16); |
| 467 | break; |
| 468 | |
| 469 | case ACPI_RSC_EXIT_LE: |
| 470 | /* |
| 471 | * Control - Exit conversion if less than or equal |
| 472 | */ |
| 473 | if (item_count <= info->value) { |
| 474 | goto exit; |
| 475 | } |
| 476 | break; |
| 477 | |
| 478 | case ACPI_RSC_EXIT_NE: |
| 479 | /* |
| 480 | * Control - Exit conversion if not equal |
| 481 | */ |
| 482 | switch (COMPARE_OPCODE(info)) { |
| 483 | case ACPI_RSC_COMPARE_VALUE: |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 484 | |
| 485 | if (*ACPI_ADD_PTR(u8, resource, |
| 486 | COMPARE_TARGET(info)) != |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 487 | COMPARE_VALUE(info)) { |
| 488 | goto exit; |
| 489 | } |
| 490 | break; |
| 491 | |
| 492 | default: |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 493 | |
| 494 | ACPI_ERROR((AE_INFO, |
| 495 | "Invalid conversion sub-opcode")); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 496 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
| 497 | } |
| 498 | break; |
| 499 | |
| 500 | default: |
| 501 | |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 502 | ACPI_ERROR((AE_INFO, "Invalid conversion opcode")); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 503 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | } |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 505 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 506 | count--; |
| 507 | info++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | } |
| 509 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 510 | exit: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 511 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | } |
| 513 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 514 | #if 0 |
| 515 | /* Previous resource validations */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 517 | if (aml->ext_address64.revision_iD != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) { |
| 518 | return_ACPI_STATUS(AE_SUPPORT); |
| 519 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 521 | if (resource->data.start_dpf.performance_robustness >= 3) { |
| 522 | return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE); |
| 523 | } |
| 524 | |
| 525 | if (((aml->irq.flags & 0x09) == 0x00) || ((aml->irq.flags & 0x09) == 0x09)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | /* |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 527 | * Only [active_high, edge_sensitive] or [active_low, level_sensitive] |
| 528 | * polarity/trigger interrupts are allowed (ACPI spec, section |
| 529 | * "IRQ Format"), so 0x00 and 0x09 are illegal. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | */ |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 531 | ACPI_ERROR((AE_INFO, |
| 532 | "Invalid interrupt polarity/trigger in resource list, %X", |
| 533 | aml->irq.flags)); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 534 | return_ACPI_STATUS(AE_BAD_DATA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | } |
| 536 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 537 | resource->data.extended_irq.interrupt_count = temp8; |
| 538 | if (temp8 < 1) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 539 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 540 | /* Must have at least one IRQ */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 542 | return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH); |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 543 | } |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 544 | |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 545 | if (resource->data.dma.transfer == 0x03) { |
Bob Moore | b8e4d89 | 2006-01-27 16:43:00 -0500 | [diff] [blame] | 546 | ACPI_ERROR((AE_INFO, "Invalid DMA.Transfer preference (3)")); |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 547 | return_ACPI_STATUS(AE_BAD_DATA); |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 548 | } |
Bob Moore | 0897831 | 2005-10-21 00:00:00 -0400 | [diff] [blame] | 549 | #endif |