Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: psxface - Parser external interfaces |
| 4 | * |
| 5 | *****************************************************************************/ |
| 6 | |
| 7 | /* |
Bob Moore | fbb7a2d | 2014-02-08 09:42:25 +0800 | [diff] [blame] | 8 | * Copyright (C) 2000 - 2014, Intel Corp. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | * All rights reserved. |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or without |
| 12 | * modification, are permitted provided that the following conditions |
| 13 | * are met: |
| 14 | * 1. Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions, and the following disclaimer, |
| 16 | * without modification. |
| 17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 18 | * substantially similar to the "NO WARRANTY" disclaimer below |
| 19 | * ("Disclaimer") and any redistribution must be conditioned upon |
| 20 | * including a substantially similar Disclaimer requirement for further |
| 21 | * binary redistribution. |
| 22 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 23 | * of any contributors may be used to endorse or promote products derived |
| 24 | * from this software without specific prior written permission. |
| 25 | * |
| 26 | * Alternatively, this software may be distributed under the terms of the |
| 27 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 28 | * Software Foundation. |
| 29 | * |
| 30 | * NO WARRANTY |
| 31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| 34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 41 | * POSSIBILITY OF SUCH DAMAGES. |
| 42 | */ |
| 43 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #include <acpi/acpi.h> |
Len Brown | e2f7a77 | 2009-01-09 00:30:03 -0500 | [diff] [blame] | 45 | #include "accommon.h" |
| 46 | #include "acparser.h" |
| 47 | #include "acdispat.h" |
| 48 | #include "acinterp.h" |
Lin Ming | 69ec87e | 2010-04-01 11:14:12 +0800 | [diff] [blame] | 49 | #include "actables.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | #define _COMPONENT ACPI_PARSER |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 52 | ACPI_MODULE_NAME("psxface") |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 54 | /* Local Prototypes */ |
Bob Moore | 4119532 | 2006-05-26 16:36:00 -0400 | [diff] [blame] | 55 | static void acpi_ps_start_trace(struct acpi_evaluate_info *info); |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 56 | |
Bob Moore | 4119532 | 2006-05-26 16:36:00 -0400 | [diff] [blame] | 57 | static void acpi_ps_stop_trace(struct acpi_evaluate_info *info); |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 58 | |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 59 | static void |
Bob Moore | 4119532 | 2006-05-26 16:36:00 -0400 | [diff] [blame] | 60 | acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | |
| 62 | /******************************************************************************* |
| 63 | * |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 64 | * FUNCTION: acpi_debug_trace |
| 65 | * |
| 66 | * PARAMETERS: method_name - Valid ACPI name string |
| 67 | * debug_level - Optional level mask. 0 to use default |
| 68 | * debug_layer - Optional layer mask. 0 to use default |
Bob Moore | ba494be | 2012-07-12 09:40:10 +0800 | [diff] [blame] | 69 | * flags - bit 1: one shot(1) or persistent(0) |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 70 | * |
| 71 | * RETURN: Status |
| 72 | * |
| 73 | * DESCRIPTION: External interface to enable debug tracing during control |
| 74 | * method execution |
| 75 | * |
| 76 | ******************************************************************************/ |
| 77 | |
| 78 | acpi_status |
| 79 | acpi_debug_trace(char *name, u32 debug_level, u32 debug_layer, u32 flags) |
| 80 | { |
| 81 | acpi_status status; |
| 82 | |
| 83 | status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); |
| 84 | if (ACPI_FAILURE(status)) { |
| 85 | return (status); |
| 86 | } |
| 87 | |
| 88 | /* TBDs: Validate name, allow full path or just nameseg */ |
| 89 | |
Bob Moore | c51a4de | 2005-11-17 13:07:00 -0500 | [diff] [blame] | 90 | acpi_gbl_trace_method_name = *ACPI_CAST_PTR(u32, name); |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 91 | acpi_gbl_trace_flags = flags; |
| 92 | |
| 93 | if (debug_level) { |
| 94 | acpi_gbl_trace_dbg_level = debug_level; |
| 95 | } |
| 96 | if (debug_layer) { |
| 97 | acpi_gbl_trace_dbg_layer = debug_layer; |
| 98 | } |
| 99 | |
| 100 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); |
| 101 | return (AE_OK); |
| 102 | } |
| 103 | |
| 104 | /******************************************************************************* |
| 105 | * |
| 106 | * FUNCTION: acpi_ps_start_trace |
| 107 | * |
Bob Moore | ba494be | 2012-07-12 09:40:10 +0800 | [diff] [blame] | 108 | * PARAMETERS: info - Method info struct |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 109 | * |
| 110 | * RETURN: None |
| 111 | * |
| 112 | * DESCRIPTION: Start control method execution trace |
| 113 | * |
| 114 | ******************************************************************************/ |
| 115 | |
Bob Moore | 4119532 | 2006-05-26 16:36:00 -0400 | [diff] [blame] | 116 | static void acpi_ps_start_trace(struct acpi_evaluate_info *info) |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 117 | { |
| 118 | acpi_status status; |
| 119 | |
| 120 | ACPI_FUNCTION_ENTRY(); |
| 121 | |
| 122 | status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); |
| 123 | if (ACPI_FAILURE(status)) { |
| 124 | return; |
| 125 | } |
| 126 | |
| 127 | if ((!acpi_gbl_trace_method_name) || |
Bob Moore | 29a241c | 2013-05-30 10:00:01 +0800 | [diff] [blame] | 128 | (acpi_gbl_trace_method_name != info->node->name.integer)) { |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 129 | goto exit; |
| 130 | } |
| 131 | |
| 132 | acpi_gbl_original_dbg_level = acpi_dbg_level; |
| 133 | acpi_gbl_original_dbg_layer = acpi_dbg_layer; |
| 134 | |
| 135 | acpi_dbg_level = 0x00FFFFFF; |
| 136 | acpi_dbg_layer = ACPI_UINT32_MAX; |
| 137 | |
| 138 | if (acpi_gbl_trace_dbg_level) { |
| 139 | acpi_dbg_level = acpi_gbl_trace_dbg_level; |
| 140 | } |
| 141 | if (acpi_gbl_trace_dbg_layer) { |
| 142 | acpi_dbg_layer = acpi_gbl_trace_dbg_layer; |
| 143 | } |
| 144 | |
Lv Zheng | 10622bf | 2013-10-29 09:30:02 +0800 | [diff] [blame] | 145 | exit: |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 146 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); |
| 147 | } |
| 148 | |
| 149 | /******************************************************************************* |
| 150 | * |
| 151 | * FUNCTION: acpi_ps_stop_trace |
| 152 | * |
Bob Moore | ba494be | 2012-07-12 09:40:10 +0800 | [diff] [blame] | 153 | * PARAMETERS: info - Method info struct |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 154 | * |
| 155 | * RETURN: None |
| 156 | * |
| 157 | * DESCRIPTION: Stop control method execution trace |
| 158 | * |
| 159 | ******************************************************************************/ |
| 160 | |
Bob Moore | 4119532 | 2006-05-26 16:36:00 -0400 | [diff] [blame] | 161 | static void acpi_ps_stop_trace(struct acpi_evaluate_info *info) |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 162 | { |
| 163 | acpi_status status; |
| 164 | |
| 165 | ACPI_FUNCTION_ENTRY(); |
| 166 | |
| 167 | status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); |
| 168 | if (ACPI_FAILURE(status)) { |
| 169 | return; |
| 170 | } |
| 171 | |
| 172 | if ((!acpi_gbl_trace_method_name) || |
Bob Moore | 29a241c | 2013-05-30 10:00:01 +0800 | [diff] [blame] | 173 | (acpi_gbl_trace_method_name != info->node->name.integer)) { |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 174 | goto exit; |
| 175 | } |
| 176 | |
| 177 | /* Disable further tracing if type is one-shot */ |
| 178 | |
| 179 | if (acpi_gbl_trace_flags & 1) { |
| 180 | acpi_gbl_trace_method_name = 0; |
| 181 | acpi_gbl_trace_dbg_level = 0; |
| 182 | acpi_gbl_trace_dbg_layer = 0; |
| 183 | } |
| 184 | |
| 185 | acpi_dbg_level = acpi_gbl_original_dbg_level; |
| 186 | acpi_dbg_layer = acpi_gbl_original_dbg_layer; |
| 187 | |
Lv Zheng | 10622bf | 2013-10-29 09:30:02 +0800 | [diff] [blame] | 188 | exit: |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 189 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); |
| 190 | } |
| 191 | |
| 192 | /******************************************************************************* |
| 193 | * |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 194 | * FUNCTION: acpi_ps_execute_method |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | * |
Bob Moore | ba494be | 2012-07-12 09:40:10 +0800 | [diff] [blame] | 196 | * PARAMETERS: info - Method info block, contains: |
| 197 | * node - Method Node to execute |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 198 | * obj_desc - Method object |
Bob Moore | ba494be | 2012-07-12 09:40:10 +0800 | [diff] [blame] | 199 | * parameters - List of parameters to pass to the method, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | * terminated by NULL. Params itself may be |
| 201 | * NULL if no parameters are being passed. |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 202 | * return_object - Where to put method's return value (if |
| 203 | * any). If NULL, no value is returned. |
| 204 | * parameter_type - Type of Parameter list |
| 205 | * return_object - Where to put method's return value (if |
| 206 | * any). If NULL, no value is returned. |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 207 | * pass_number - Parse or execute pass |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | * |
| 209 | * RETURN: Status |
| 210 | * |
| 211 | * DESCRIPTION: Execute a control method |
| 212 | * |
| 213 | ******************************************************************************/ |
| 214 | |
Bob Moore | 4119532 | 2006-05-26 16:36:00 -0400 | [diff] [blame] | 215 | acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 217 | acpi_status status; |
Valery Podrezov | 9bc75cf | 2007-02-02 19:48:21 +0300 | [diff] [blame] | 218 | union acpi_parse_object *op; |
| 219 | struct acpi_walk_state *walk_state; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 221 | ACPI_FUNCTION_TRACE(ps_execute_method); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | |
Lin Ming | 729df0f | 2010-04-01 10:47:56 +0800 | [diff] [blame] | 223 | /* Quick validation of DSDT header */ |
| 224 | |
| 225 | acpi_tb_check_dsdt_header(); |
| 226 | |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 227 | /* Validate the Info and method Node */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | |
Bob Moore | 29a241c | 2013-05-30 10:00:01 +0800 | [diff] [blame] | 229 | if (!info || !info->node) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 230 | return_ACPI_STATUS(AE_NULL_ENTRY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | } |
| 232 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | /* Init for new method, wait on concurrency semaphore */ |
| 234 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 235 | status = |
Bob Moore | 29a241c | 2013-05-30 10:00:01 +0800 | [diff] [blame] | 236 | acpi_ds_begin_method_execution(info->node, info->obj_desc, NULL); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 237 | if (ACPI_FAILURE(status)) { |
| 238 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | } |
| 240 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | /* |
Valery Podrezov | 9bc75cf | 2007-02-02 19:48:21 +0300 | [diff] [blame] | 242 | * The caller "owns" the parameters, so give each one an extra reference |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 243 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 244 | acpi_ps_update_parameter_list(info, REF_INCREMENT); |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 245 | |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 246 | /* Begin tracing if requested */ |
| 247 | |
| 248 | acpi_ps_start_trace(info); |
| 249 | |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 250 | /* |
Valery Podrezov | 9bc75cf | 2007-02-02 19:48:21 +0300 | [diff] [blame] | 251 | * Execute the method. Performs parse simultaneously |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 252 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 253 | ACPI_DEBUG_PRINT((ACPI_DB_PARSE, |
Valery Podrezov | 9bc75cf | 2007-02-02 19:48:21 +0300 | [diff] [blame] | 254 | "**** Begin Method Parse/Execute [%4.4s] **** Node=%p Obj=%p\n", |
Bob Moore | 29a241c | 2013-05-30 10:00:01 +0800 | [diff] [blame] | 255 | info->node->name.ascii, info->node, info->obj_desc)); |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 256 | |
Valery Podrezov | 9bc75cf | 2007-02-02 19:48:21 +0300 | [diff] [blame] | 257 | /* Create and init a Root Node */ |
| 258 | |
| 259 | op = acpi_ps_create_scope_op(); |
| 260 | if (!op) { |
| 261 | status = AE_NO_MEMORY; |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 262 | goto cleanup; |
| 263 | } |
| 264 | |
Valery Podrezov | 9bc75cf | 2007-02-02 19:48:21 +0300 | [diff] [blame] | 265 | /* Create and initialize a new walk state */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | |
Bob Moore | ec3153f | 2007-02-02 19:48:21 +0300 | [diff] [blame] | 267 | info->pass_number = ACPI_IMODE_EXECUTE; |
Valery Podrezov | 9bc75cf | 2007-02-02 19:48:21 +0300 | [diff] [blame] | 268 | walk_state = |
| 269 | acpi_ds_create_walk_state(info->obj_desc->method.owner_id, NULL, |
| 270 | NULL, NULL); |
| 271 | if (!walk_state) { |
| 272 | status = AE_NO_MEMORY; |
| 273 | goto cleanup; |
| 274 | } |
| 275 | |
Bob Moore | 29a241c | 2013-05-30 10:00:01 +0800 | [diff] [blame] | 276 | status = acpi_ds_init_aml_walk(walk_state, op, info->node, |
Valery Podrezov | 9bc75cf | 2007-02-02 19:48:21 +0300 | [diff] [blame] | 277 | info->obj_desc->method.aml_start, |
| 278 | info->obj_desc->method.aml_length, info, |
| 279 | info->pass_number); |
| 280 | if (ACPI_FAILURE(status)) { |
| 281 | acpi_ds_delete_walk_state(walk_state); |
| 282 | goto cleanup; |
| 283 | } |
| 284 | |
Lin Ming | 2629484 | 2011-01-12 09:19:43 +0800 | [diff] [blame] | 285 | if (info->obj_desc->method.info_flags & ACPI_METHOD_MODULE_LEVEL) { |
Lin Ming | 7f0c826 | 2009-08-13 14:03:15 +0800 | [diff] [blame] | 286 | walk_state->parse_flags |= ACPI_PARSE_MODULE_LEVEL; |
| 287 | } |
| 288 | |
Bob Moore | a8fadc9 | 2008-11-13 09:45:35 +0800 | [diff] [blame] | 289 | /* Invoke an internal method if necessary */ |
| 290 | |
Lin Ming | 2629484 | 2011-01-12 09:19:43 +0800 | [diff] [blame] | 291 | if (info->obj_desc->method.info_flags & ACPI_METHOD_INTERNAL_ONLY) { |
Lin Ming | e31c32c | 2009-12-11 15:28:27 +0800 | [diff] [blame] | 292 | status = |
Lin Ming | 2629484 | 2011-01-12 09:19:43 +0800 | [diff] [blame] | 293 | info->obj_desc->method.dispatch.implementation(walk_state); |
Bob Moore | a8fadc9 | 2008-11-13 09:45:35 +0800 | [diff] [blame] | 294 | info->return_object = walk_state->return_desc; |
| 295 | |
| 296 | /* Cleanup states */ |
| 297 | |
| 298 | acpi_ds_scope_stack_clear(walk_state); |
| 299 | acpi_ps_cleanup_scope(&walk_state->parser_state); |
| 300 | acpi_ds_terminate_control_method(walk_state->method_desc, |
| 301 | walk_state); |
| 302 | acpi_ds_delete_walk_state(walk_state); |
| 303 | goto cleanup; |
| 304 | } |
| 305 | |
Lin Ming | 7a4b8131 | 2008-11-13 11:25:22 +0800 | [diff] [blame] | 306 | /* |
| 307 | * Start method evaluation with an implicit return of zero. |
| 308 | * This is done for Windows compatibility. |
| 309 | */ |
| 310 | if (acpi_gbl_enable_interpreter_slack) { |
| 311 | walk_state->implicit_return_obj = |
Bob Moore | dc95a27 | 2009-11-12 09:52:45 +0800 | [diff] [blame] | 312 | acpi_ut_create_integer_object((u64) 0); |
Lin Ming | 7a4b8131 | 2008-11-13 11:25:22 +0800 | [diff] [blame] | 313 | if (!walk_state->implicit_return_obj) { |
| 314 | status = AE_NO_MEMORY; |
| 315 | acpi_ds_delete_walk_state(walk_state); |
| 316 | goto cleanup; |
| 317 | } |
Lin Ming | 7a4b8131 | 2008-11-13 11:25:22 +0800 | [diff] [blame] | 318 | } |
| 319 | |
Valery Podrezov | 9bc75cf | 2007-02-02 19:48:21 +0300 | [diff] [blame] | 320 | /* Parse the AML */ |
| 321 | |
| 322 | status = acpi_ps_parse_aml(walk_state); |
| 323 | |
| 324 | /* walk_state was deleted by parse_aml */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | |
Lv Zheng | 10622bf | 2013-10-29 09:30:02 +0800 | [diff] [blame] | 326 | cleanup: |
Valery Podrezov | 9bc75cf | 2007-02-02 19:48:21 +0300 | [diff] [blame] | 327 | acpi_ps_delete_parse_tree(op); |
| 328 | |
Bob Moore | 50eca3e | 2005-09-30 19:03:00 -0400 | [diff] [blame] | 329 | /* End optional tracing */ |
| 330 | |
| 331 | acpi_ps_stop_trace(info); |
| 332 | |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 333 | /* Take away the extra reference that we gave the parameters above */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 335 | acpi_ps_update_parameter_list(info, REF_DECREMENT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 337 | /* Exit now if error above */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 339 | if (ACPI_FAILURE(status)) { |
| 340 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | } |
| 342 | |
| 343 | /* |
| 344 | * If the method has returned an object, signal this to the caller with |
| 345 | * a control exception code |
| 346 | */ |
| 347 | if (info->return_object) { |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 348 | ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Method returned ObjDesc=%p\n", |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 349 | info->return_object)); |
| 350 | ACPI_DUMP_STACK_ENTRY(info->return_object); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | |
| 352 | status = AE_CTRL_RETURN_VALUE; |
| 353 | } |
| 354 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 355 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | } |
| 357 | |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 358 | /******************************************************************************* |
| 359 | * |
| 360 | * FUNCTION: acpi_ps_update_parameter_list |
| 361 | * |
Bob Moore | ba494be | 2012-07-12 09:40:10 +0800 | [diff] [blame] | 362 | * PARAMETERS: info - See struct acpi_evaluate_info |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 363 | * (Used: parameter_type and Parameters) |
Bob Moore | ba494be | 2012-07-12 09:40:10 +0800 | [diff] [blame] | 364 | * action - Add or Remove reference |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 365 | * |
| 366 | * RETURN: Status |
| 367 | * |
| 368 | * DESCRIPTION: Update reference count on all method parameter objects |
| 369 | * |
| 370 | ******************************************************************************/ |
| 371 | |
| 372 | static void |
Bob Moore | 4119532 | 2006-05-26 16:36:00 -0400 | [diff] [blame] | 373 | acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action) |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 374 | { |
Bob Moore | 67a119f | 2008-06-10 13:42:13 +0800 | [diff] [blame] | 375 | u32 i; |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 376 | |
Bob Moore | c91d924 | 2008-06-10 12:38:10 +0800 | [diff] [blame] | 377 | if (info->parameters) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 378 | |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 379 | /* Update reference count for each parameter */ |
| 380 | |
| 381 | for (i = 0; info->parameters[i]; i++) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 382 | |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 383 | /* Ignore errors, just do them all */ |
| 384 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 385 | (void)acpi_ut_update_object_reference(info-> |
| 386 | parameters[i], |
| 387 | action); |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 388 | } |
| 389 | } |
| 390 | } |