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authorBob Moore <robert.moore@intel.com>2013-01-11 07:08:51 -0500
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-01-11 07:08:51 -0500
commit42f8fb75c43cc67f06424f991009b3af674f93eb (patch)
tree01821d5eca5f97d474bee62e7f92fe481adb31b8 /drivers/acpi/acpica/psloop.c
parent4f8429166818dd615891990040ce13373893ee9a (diff)
ACPICA: Source restructuring: split large files into 8 new files.
Created logical splits for eight new files. Improves modularity and configurability. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/psloop.c')
-rw-r--r--drivers/acpi/acpica/psloop.c622
1 files changed, 0 insertions, 622 deletions
diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c
index a6f8592c9ae5..4261c5fe4718 100644
--- a/drivers/acpi/acpica/psloop.c
+++ b/drivers/acpi/acpica/psloop.c
@@ -58,353 +58,17 @@
58#define _COMPONENT ACPI_PARSER 58#define _COMPONENT ACPI_PARSER
59ACPI_MODULE_NAME("psloop") 59ACPI_MODULE_NAME("psloop")
60 60
61static u32 acpi_gbl_depth = 0;
62
63/* Local prototypes */ 61/* Local prototypes */
64
65static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state);
66
67static acpi_status
68acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
69 u8 * aml_op_start,
70 union acpi_parse_object *unnamed_op,
71 union acpi_parse_object **op);
72
73static acpi_status
74acpi_ps_create_op(struct acpi_walk_state *walk_state,
75 u8 * aml_op_start, union acpi_parse_object **new_op);
76
77static acpi_status 62static acpi_status
78acpi_ps_get_arguments(struct acpi_walk_state *walk_state, 63acpi_ps_get_arguments(struct acpi_walk_state *walk_state,
79 u8 * aml_op_start, union acpi_parse_object *op); 64 u8 * aml_op_start, union acpi_parse_object *op);
80 65
81static acpi_status
82acpi_ps_complete_op(struct acpi_walk_state *walk_state,
83 union acpi_parse_object **op, acpi_status status);
84
85static acpi_status
86acpi_ps_complete_final_op(struct acpi_walk_state *walk_state,
87 union acpi_parse_object *op, acpi_status status);
88
89static void 66static void
90acpi_ps_link_module_code(union acpi_parse_object *parent_op, 67acpi_ps_link_module_code(union acpi_parse_object *parent_op,
91 u8 *aml_start, u32 aml_length, acpi_owner_id owner_id); 68 u8 *aml_start, u32 aml_length, acpi_owner_id owner_id);
92 69
93/******************************************************************************* 70/*******************************************************************************
94 * 71 *
95 * FUNCTION: acpi_ps_get_aml_opcode
96 *
97 * PARAMETERS: walk_state - Current state
98 *
99 * RETURN: Status
100 *
101 * DESCRIPTION: Extract the next AML opcode from the input stream.
102 *
103 ******************************************************************************/
104
105static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state)
106{
107
108 ACPI_FUNCTION_TRACE_PTR(ps_get_aml_opcode, walk_state);
109
110 walk_state->aml_offset =
111 (u32) ACPI_PTR_DIFF(walk_state->parser_state.aml,
112 walk_state->parser_state.aml_start);
113 walk_state->opcode = acpi_ps_peek_opcode(&(walk_state->parser_state));
114
115 /*
116 * First cut to determine what we have found:
117 * 1) A valid AML opcode
118 * 2) A name string
119 * 3) An unknown/invalid opcode
120 */
121 walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode);
122
123 switch (walk_state->op_info->class) {
124 case AML_CLASS_ASCII:
125 case AML_CLASS_PREFIX:
126 /*
127 * Starts with a valid prefix or ASCII char, this is a name
128 * string. Convert the bare name string to a namepath.
129 */
130 walk_state->opcode = AML_INT_NAMEPATH_OP;
131 walk_state->arg_types = ARGP_NAMESTRING;
132 break;
133
134 case AML_CLASS_UNKNOWN:
135
136 /* The opcode is unrecognized. Complain and skip unknown opcodes */
137
138 if (walk_state->pass_number == 2) {
139 ACPI_ERROR((AE_INFO,
140 "Unknown opcode 0x%.2X at table offset 0x%.4X, ignoring",
141 walk_state->opcode,
142 (u32)(walk_state->aml_offset +
143 sizeof(struct acpi_table_header))));
144
145 ACPI_DUMP_BUFFER((walk_state->parser_state.aml - 16),
146 48);
147
148#ifdef ACPI_ASL_COMPILER
149 /*
150 * This is executed for the disassembler only. Output goes
151 * to the disassembled ASL output file.
152 */
153 acpi_os_printf
154 ("/*\nError: Unknown opcode 0x%.2X at table offset 0x%.4X, context:\n",
155 walk_state->opcode,
156 (u32)(walk_state->aml_offset +
157 sizeof(struct acpi_table_header)));
158
159 /* Dump the context surrounding the invalid opcode */
160
161 acpi_ut_dump_buffer(((u8 *)walk_state->parser_state.
162 aml - 16), 48, DB_BYTE_DISPLAY,
163 (walk_state->aml_offset +
164 sizeof(struct acpi_table_header) -
165 16));
166 acpi_os_printf(" */\n");
167#endif
168 }
169
170 /* Increment past one-byte or two-byte opcode */
171
172 walk_state->parser_state.aml++;
173 if (walk_state->opcode > 0xFF) { /* Can only happen if first byte is 0x5B */
174 walk_state->parser_state.aml++;
175 }
176
177 return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
178
179 default:
180
181 /* Found opcode info, this is a normal opcode */
182
183 walk_state->parser_state.aml +=
184 acpi_ps_get_opcode_size(walk_state->opcode);
185 walk_state->arg_types = walk_state->op_info->parse_args;
186 break;
187 }
188
189 return_ACPI_STATUS(AE_OK);
190}
191
192/*******************************************************************************
193 *
194 * FUNCTION: acpi_ps_build_named_op
195 *
196 * PARAMETERS: walk_state - Current state
197 * aml_op_start - Begin of named Op in AML
198 * unnamed_op - Early Op (not a named Op)
199 * op - Returned Op
200 *
201 * RETURN: Status
202 *
203 * DESCRIPTION: Parse a named Op
204 *
205 ******************************************************************************/
206
207static acpi_status
208acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
209 u8 * aml_op_start,
210 union acpi_parse_object *unnamed_op,
211 union acpi_parse_object **op)
212{
213 acpi_status status = AE_OK;
214 union acpi_parse_object *arg = NULL;
215
216 ACPI_FUNCTION_TRACE_PTR(ps_build_named_op, walk_state);
217
218 unnamed_op->common.value.arg = NULL;
219 unnamed_op->common.arg_list_length = 0;
220 unnamed_op->common.aml_opcode = walk_state->opcode;
221
222 /*
223 * Get and append arguments until we find the node that contains
224 * the name (the type ARGP_NAME).
225 */
226 while (GET_CURRENT_ARG_TYPE(walk_state->arg_types) &&
227 (GET_CURRENT_ARG_TYPE(walk_state->arg_types) != ARGP_NAME)) {
228 status =
229 acpi_ps_get_next_arg(walk_state,
230 &(walk_state->parser_state),
231 GET_CURRENT_ARG_TYPE(walk_state->
232 arg_types), &arg);
233 if (ACPI_FAILURE(status)) {
234 return_ACPI_STATUS(status);
235 }
236
237 acpi_ps_append_arg(unnamed_op, arg);
238 INCREMENT_ARG_LIST(walk_state->arg_types);
239 }
240
241 /*
242 * Make sure that we found a NAME and didn't run out of arguments
243 */
244 if (!GET_CURRENT_ARG_TYPE(walk_state->arg_types)) {
245 return_ACPI_STATUS(AE_AML_NO_OPERAND);
246 }
247
248 /* We know that this arg is a name, move to next arg */
249
250 INCREMENT_ARG_LIST(walk_state->arg_types);
251
252 /*
253 * Find the object. This will either insert the object into
254 * the namespace or simply look it up
255 */
256 walk_state->op = NULL;
257
258 status = walk_state->descending_callback(walk_state, op);
259 if (ACPI_FAILURE(status)) {
260 ACPI_EXCEPTION((AE_INFO, status, "During name lookup/catalog"));
261 return_ACPI_STATUS(status);
262 }
263
264 if (!*op) {
265 return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
266 }
267
268 status = acpi_ps_next_parse_state(walk_state, *op, status);
269 if (ACPI_FAILURE(status)) {
270 if (status == AE_CTRL_PENDING) {
271 return_ACPI_STATUS(AE_CTRL_PARSE_PENDING);
272 }
273 return_ACPI_STATUS(status);
274 }
275
276 acpi_ps_append_arg(*op, unnamed_op->common.value.arg);
277 acpi_gbl_depth++;
278
279 if ((*op)->common.aml_opcode == AML_REGION_OP ||
280 (*op)->common.aml_opcode == AML_DATA_REGION_OP) {
281 /*
282 * Defer final parsing of an operation_region body, because we don't
283 * have enough info in the first pass to parse it correctly (i.e.,
284 * there may be method calls within the term_arg elements of the body.)
285 *
286 * However, we must continue parsing because the opregion is not a
287 * standalone package -- we don't know where the end is at this point.
288 *
289 * (Length is unknown until parse of the body complete)
290 */
291 (*op)->named.data = aml_op_start;
292 (*op)->named.length = 0;
293 }
294
295 return_ACPI_STATUS(AE_OK);
296}
297
298/*******************************************************************************
299 *
300 * FUNCTION: acpi_ps_create_op
301 *
302 * PARAMETERS: walk_state - Current state
303 * aml_op_start - Op start in AML
304 * new_op - Returned Op
305 *
306 * RETURN: Status
307 *
308 * DESCRIPTION: Get Op from AML
309 *
310 ******************************************************************************/
311
312static acpi_status
313acpi_ps_create_op(struct acpi_walk_state *walk_state,
314 u8 * aml_op_start, union acpi_parse_object **new_op)
315{
316 acpi_status status = AE_OK;
317 union acpi_parse_object *op;
318 union acpi_parse_object *named_op = NULL;
319 union acpi_parse_object *parent_scope;
320 u8 argument_count;
321 const struct acpi_opcode_info *op_info;
322
323 ACPI_FUNCTION_TRACE_PTR(ps_create_op, walk_state);
324
325 status = acpi_ps_get_aml_opcode(walk_state);
326 if (status == AE_CTRL_PARSE_CONTINUE) {
327 return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
328 }
329
330 /* Create Op structure and append to parent's argument list */
331
332 walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode);
333 op = acpi_ps_alloc_op(walk_state->opcode);
334 if (!op) {
335 return_ACPI_STATUS(AE_NO_MEMORY);
336 }
337
338 if (walk_state->op_info->flags & AML_NAMED) {
339 status =
340 acpi_ps_build_named_op(walk_state, aml_op_start, op,
341 &named_op);
342 acpi_ps_free_op(op);
343 if (ACPI_FAILURE(status)) {
344 return_ACPI_STATUS(status);
345 }
346
347 *new_op = named_op;
348 return_ACPI_STATUS(AE_OK);
349 }
350
351 /* Not a named opcode, just allocate Op and append to parent */
352
353 if (walk_state->op_info->flags & AML_CREATE) {
354 /*
355 * Backup to beginning of create_XXXfield declaration
356 * body_length is unknown until we parse the body
357 */
358 op->named.data = aml_op_start;
359 op->named.length = 0;
360 }
361
362 if (walk_state->opcode == AML_BANK_FIELD_OP) {
363 /*
364 * Backup to beginning of bank_field declaration
365 * body_length is unknown until we parse the body
366 */
367 op->named.data = aml_op_start;
368 op->named.length = 0;
369 }
370
371 parent_scope = acpi_ps_get_parent_scope(&(walk_state->parser_state));
372 acpi_ps_append_arg(parent_scope, op);
373
374 if (parent_scope) {
375 op_info =
376 acpi_ps_get_opcode_info(parent_scope->common.aml_opcode);
377 if (op_info->flags & AML_HAS_TARGET) {
378 argument_count =
379 acpi_ps_get_argument_count(op_info->type);
380 if (parent_scope->common.arg_list_length >
381 argument_count) {
382 op->common.flags |= ACPI_PARSEOP_TARGET;
383 }
384 } else if (parent_scope->common.aml_opcode == AML_INCREMENT_OP) {
385 op->common.flags |= ACPI_PARSEOP_TARGET;
386 }
387 }
388
389 if (walk_state->descending_callback != NULL) {
390 /*
391 * Find the object. This will either insert the object into
392 * the namespace or simply look it up
393 */
394 walk_state->op = *new_op = op;
395
396 status = walk_state->descending_callback(walk_state, &op);
397 status = acpi_ps_next_parse_state(walk_state, op, status);
398 if (status == AE_CTRL_PENDING) {
399 status = AE_CTRL_PARSE_PENDING;
400 }
401 }
402
403 return_ACPI_STATUS(status);
404}
405
406/*******************************************************************************
407 *
408 * FUNCTION: acpi_ps_get_arguments 72 * FUNCTION: acpi_ps_get_arguments
409 * 73 *
410 * PARAMETERS: walk_state - Current state 74 * PARAMETERS: walk_state - Current state
@@ -712,288 +376,6 @@ acpi_ps_link_module_code(union acpi_parse_object *parent_op,
712 376
713/******************************************************************************* 377/*******************************************************************************
714 * 378 *
715 * FUNCTION: acpi_ps_complete_op
716 *
717 * PARAMETERS: walk_state - Current state
718 * op - Returned Op
719 * status - Parse status before complete Op
720 *
721 * RETURN: Status
722 *
723 * DESCRIPTION: Complete Op
724 *
725 ******************************************************************************/
726
727static acpi_status
728acpi_ps_complete_op(struct acpi_walk_state *walk_state,
729 union acpi_parse_object **op, acpi_status status)
730{
731 acpi_status status2;
732
733 ACPI_FUNCTION_TRACE_PTR(ps_complete_op, walk_state);
734
735 /*
736 * Finished one argument of the containing scope
737 */
738 walk_state->parser_state.scope->parse_scope.arg_count--;
739
740 /* Close this Op (will result in parse subtree deletion) */
741
742 status2 = acpi_ps_complete_this_op(walk_state, *op);
743 if (ACPI_FAILURE(status2)) {
744 return_ACPI_STATUS(status2);
745 }
746
747 *op = NULL;
748
749 switch (status) {
750 case AE_OK:
751 break;
752
753 case AE_CTRL_TRANSFER:
754
755 /* We are about to transfer to a called method */
756
757 walk_state->prev_op = NULL;
758 walk_state->prev_arg_types = walk_state->arg_types;
759 return_ACPI_STATUS(status);
760
761 case AE_CTRL_END:
762
763 acpi_ps_pop_scope(&(walk_state->parser_state), op,
764 &walk_state->arg_types,
765 &walk_state->arg_count);
766
767 if (*op) {
768 walk_state->op = *op;
769 walk_state->op_info =
770 acpi_ps_get_opcode_info((*op)->common.aml_opcode);
771 walk_state->opcode = (*op)->common.aml_opcode;
772
773 status = walk_state->ascending_callback(walk_state);
774 status =
775 acpi_ps_next_parse_state(walk_state, *op, status);
776
777 status2 = acpi_ps_complete_this_op(walk_state, *op);
778 if (ACPI_FAILURE(status2)) {
779 return_ACPI_STATUS(status2);
780 }
781 }
782
783 status = AE_OK;
784 break;
785
786 case AE_CTRL_BREAK:
787 case AE_CTRL_CONTINUE:
788
789 /* Pop off scopes until we find the While */
790
791 while (!(*op) || ((*op)->common.aml_opcode != AML_WHILE_OP)) {
792 acpi_ps_pop_scope(&(walk_state->parser_state), op,
793 &walk_state->arg_types,
794 &walk_state->arg_count);
795 }
796
797 /* Close this iteration of the While loop */
798
799 walk_state->op = *op;
800 walk_state->op_info =
801 acpi_ps_get_opcode_info((*op)->common.aml_opcode);
802 walk_state->opcode = (*op)->common.aml_opcode;
803
804 status = walk_state->ascending_callback(walk_state);
805 status = acpi_ps_next_parse_state(walk_state, *op, status);
806
807 status2 = acpi_ps_complete_this_op(walk_state, *op);
808 if (ACPI_FAILURE(status2)) {
809 return_ACPI_STATUS(status2);
810 }
811
812 status = AE_OK;
813 break;
814
815 case AE_CTRL_TERMINATE:
816
817 /* Clean up */
818 do {
819 if (*op) {
820 status2 =
821 acpi_ps_complete_this_op(walk_state, *op);
822 if (ACPI_FAILURE(status2)) {
823 return_ACPI_STATUS(status2);
824 }
825
826 acpi_ut_delete_generic_state
827 (acpi_ut_pop_generic_state
828 (&walk_state->control_state));
829 }
830
831 acpi_ps_pop_scope(&(walk_state->parser_state), op,
832 &walk_state->arg_types,
833 &walk_state->arg_count);
834
835 } while (*op);
836
837 return_ACPI_STATUS(AE_OK);
838
839 default: /* All other non-AE_OK status */
840
841 do {
842 if (*op) {
843 status2 =
844 acpi_ps_complete_this_op(walk_state, *op);
845 if (ACPI_FAILURE(status2)) {
846 return_ACPI_STATUS(status2);
847 }
848 }
849
850 acpi_ps_pop_scope(&(walk_state->parser_state), op,
851 &walk_state->arg_types,
852 &walk_state->arg_count);
853
854 } while (*op);
855
856#if 0
857 /*
858 * TBD: Cleanup parse ops on error
859 */
860 if (*op == NULL) {
861 acpi_ps_pop_scope(parser_state, op,
862 &walk_state->arg_types,
863 &walk_state->arg_count);
864 }
865#endif
866 walk_state->prev_op = NULL;
867 walk_state->prev_arg_types = walk_state->arg_types;
868 return_ACPI_STATUS(status);
869 }
870
871 /* This scope complete? */
872
873 if (acpi_ps_has_completed_scope(&(walk_state->parser_state))) {
874 acpi_ps_pop_scope(&(walk_state->parser_state), op,
875 &walk_state->arg_types,
876 &walk_state->arg_count);
877 ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Popped scope, Op=%p\n", *op));
878 } else {
879 *op = NULL;
880 }
881
882 return_ACPI_STATUS(AE_OK);
883}
884
885/*******************************************************************************
886 *
887 * FUNCTION: acpi_ps_complete_final_op
888 *
889 * PARAMETERS: walk_state - Current state
890 * op - Current Op
891 * status - Current parse status before complete last
892 * Op
893 *
894 * RETURN: Status
895 *
896 * DESCRIPTION: Complete last Op.
897 *
898 ******************************************************************************/
899
900static acpi_status
901acpi_ps_complete_final_op(struct acpi_walk_state *walk_state,
902 union acpi_parse_object *op, acpi_status status)
903{
904 acpi_status status2;
905
906 ACPI_FUNCTION_TRACE_PTR(ps_complete_final_op, walk_state);
907
908 /*
909 * Complete the last Op (if not completed), and clear the scope stack.
910 * It is easily possible to end an AML "package" with an unbounded number
911 * of open scopes (such as when several ASL blocks are closed with
912 * sequential closing braces). We want to terminate each one cleanly.
913 */
914 ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "AML package complete at Op %p\n",
915 op));
916 do {
917 if (op) {
918 if (walk_state->ascending_callback != NULL) {
919 walk_state->op = op;
920 walk_state->op_info =
921 acpi_ps_get_opcode_info(op->common.
922 aml_opcode);
923 walk_state->opcode = op->common.aml_opcode;
924
925 status =
926 walk_state->ascending_callback(walk_state);
927 status =
928 acpi_ps_next_parse_state(walk_state, op,
929 status);
930 if (status == AE_CTRL_PENDING) {
931 status =
932 acpi_ps_complete_op(walk_state, &op,
933 AE_OK);
934 if (ACPI_FAILURE(status)) {
935 return_ACPI_STATUS(status);
936 }
937 }
938
939 if (status == AE_CTRL_TERMINATE) {
940 status = AE_OK;
941
942 /* Clean up */
943 do {
944 if (op) {
945 status2 =
946 acpi_ps_complete_this_op
947 (walk_state, op);
948 if (ACPI_FAILURE
949 (status2)) {
950 return_ACPI_STATUS
951 (status2);
952 }
953 }
954
955 acpi_ps_pop_scope(&
956 (walk_state->
957 parser_state),
958 &op,
959 &walk_state->
960 arg_types,
961 &walk_state->
962 arg_count);
963
964 } while (op);
965
966 return_ACPI_STATUS(status);
967 }
968
969 else if (ACPI_FAILURE(status)) {
970
971 /* First error is most important */
972
973 (void)
974 acpi_ps_complete_this_op(walk_state,
975 op);
976 return_ACPI_STATUS(status);
977 }
978 }
979
980 status2 = acpi_ps_complete_this_op(walk_state, op);
981 if (ACPI_FAILURE(status2)) {
982 return_ACPI_STATUS(status2);
983 }
984 }
985
986 acpi_ps_pop_scope(&(walk_state->parser_state), &op,
987 &walk_state->arg_types,
988 &walk_state->arg_count);
989
990 } while (op);
991
992 return_ACPI_STATUS(status);
993}
994
995/*******************************************************************************
996 *
997 * FUNCTION: acpi_ps_parse_loop 379 * FUNCTION: acpi_ps_parse_loop
998 * 380 *
999 * PARAMETERS: walk_state - Current state 381 * PARAMETERS: walk_state - Current state
@@ -1178,10 +560,6 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
1178 walk_state->op_info = 560 walk_state->op_info =
1179 acpi_ps_get_opcode_info(op->common.aml_opcode); 561 acpi_ps_get_opcode_info(op->common.aml_opcode);
1180 if (walk_state->op_info->flags & AML_NAMED) { 562 if (walk_state->op_info->flags & AML_NAMED) {
1181 if (acpi_gbl_depth) {
1182 acpi_gbl_depth--;
1183 }
1184
1185 if (op->common.aml_opcode == AML_REGION_OP || 563 if (op->common.aml_opcode == AML_REGION_OP ||
1186 op->common.aml_opcode == AML_DATA_REGION_OP) { 564 op->common.aml_opcode == AML_DATA_REGION_OP) {
1187 /* 565 /*
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-19 10:17:59 -0500