diff options
Diffstat (limited to 'drivers/acpi/dispatcher/dsfield.c')
-rw-r--r-- | drivers/acpi/dispatcher/dsfield.c | 58 |
1 files changed, 37 insertions, 21 deletions
diff --git a/drivers/acpi/dispatcher/dsfield.c b/drivers/acpi/dispatcher/dsfield.c index 2779211be756..84193983d6ba 100644 --- a/drivers/acpi/dispatcher/dsfield.c +++ b/drivers/acpi/dispatcher/dsfield.c | |||
@@ -53,13 +53,20 @@ | |||
53 | #define _COMPONENT ACPI_DISPATCHER | 53 | #define _COMPONENT ACPI_DISPATCHER |
54 | ACPI_MODULE_NAME ("dsfield") | 54 | ACPI_MODULE_NAME ("dsfield") |
55 | 55 | ||
56 | /* Local prototypes */ | ||
57 | |||
58 | static acpi_status | ||
59 | acpi_ds_get_field_names ( | ||
60 | struct acpi_create_field_info *info, | ||
61 | struct acpi_walk_state *walk_state, | ||
62 | union acpi_parse_object *arg); | ||
63 | |||
56 | 64 | ||
57 | /******************************************************************************* | 65 | /******************************************************************************* |
58 | * | 66 | * |
59 | * FUNCTION: acpi_ds_create_buffer_field | 67 | * FUNCTION: acpi_ds_create_buffer_field |
60 | * | 68 | * |
61 | * PARAMETERS: Opcode - The opcode to be executed | 69 | * PARAMETERS: Op - Current parse op (create_xXField) |
62 | * Operands - List of operands for the opcode | ||
63 | * walk_state - Current state | 70 | * walk_state - Current state |
64 | * | 71 | * |
65 | * RETURN: Status | 72 | * RETURN: Status |
@@ -70,7 +77,7 @@ | |||
70 | * create_word_field_op, | 77 | * create_word_field_op, |
71 | * create_dword_field_op, | 78 | * create_dword_field_op, |
72 | * create_qword_field_op, | 79 | * create_qword_field_op, |
73 | * create_field_op (all of which define fields in buffers) | 80 | * create_field_op (all of which define a field in a buffer) |
74 | * | 81 | * |
75 | ******************************************************************************/ | 82 | ******************************************************************************/ |
76 | 83 | ||
@@ -119,7 +126,8 @@ acpi_ds_create_buffer_field ( | |||
119 | flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE; | 126 | flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE; |
120 | } | 127 | } |
121 | else { | 128 | else { |
122 | flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | ACPI_NS_ERROR_IF_FOUND; | 129 | flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | |
130 | ACPI_NS_ERROR_IF_FOUND; | ||
123 | } | 131 | } |
124 | 132 | ||
125 | /* | 133 | /* |
@@ -134,16 +142,16 @@ acpi_ds_create_buffer_field ( | |||
134 | } | 142 | } |
135 | } | 143 | } |
136 | 144 | ||
137 | /* We could put the returned object (Node) on the object stack for later, but | 145 | /* We could put the returned object (Node) on the object stack for later, |
138 | * for now, we will put it in the "op" object that the parser uses, so we | 146 | * but for now, we will put it in the "op" object that the parser uses, |
139 | * can get it again at the end of this scope | 147 | * so we can get it again at the end of this scope |
140 | */ | 148 | */ |
141 | op->common.node = node; | 149 | op->common.node = node; |
142 | 150 | ||
143 | /* | 151 | /* |
144 | * If there is no object attached to the node, this node was just created and | 152 | * If there is no object attached to the node, this node was just created |
145 | * we need to create the field object. Otherwise, this was a lookup of an | 153 | * and we need to create the field object. Otherwise, this was a lookup |
146 | * existing node and we don't want to create the field object again. | 154 | * of an existing node and we don't want to create the field object again. |
147 | */ | 155 | */ |
148 | obj_desc = acpi_ns_get_attached_object (node); | 156 | obj_desc = acpi_ns_get_attached_object (node); |
149 | if (obj_desc) { | 157 | if (obj_desc) { |
@@ -205,7 +213,7 @@ cleanup: | |||
205 | * | 213 | * |
206 | ******************************************************************************/ | 214 | ******************************************************************************/ |
207 | 215 | ||
208 | acpi_status | 216 | static acpi_status |
209 | acpi_ds_get_field_names ( | 217 | acpi_ds_get_field_names ( |
210 | struct acpi_create_field_info *info, | 218 | struct acpi_create_field_info *info, |
211 | struct acpi_walk_state *walk_state, | 219 | struct acpi_walk_state *walk_state, |
@@ -238,7 +246,8 @@ acpi_ds_get_field_names ( | |||
238 | + (acpi_integer) arg->common.value.size; | 246 | + (acpi_integer) arg->common.value.size; |
239 | 247 | ||
240 | if (position > ACPI_UINT32_MAX) { | 248 | if (position > ACPI_UINT32_MAX) { |
241 | ACPI_REPORT_ERROR (("Bit offset within field too large (> 0xFFFFFFFF)\n")); | 249 | ACPI_REPORT_ERROR (( |
250 | "Bit offset within field too large (> 0xFFFFFFFF)\n")); | ||
242 | return_ACPI_STATUS (AE_SUPPORT); | 251 | return_ACPI_STATUS (AE_SUPPORT); |
243 | } | 252 | } |
244 | 253 | ||
@@ -250,12 +259,15 @@ acpi_ds_get_field_names ( | |||
250 | 259 | ||
251 | /* | 260 | /* |
252 | * Get a new access_type and access_attribute -- to be used for all | 261 | * Get a new access_type and access_attribute -- to be used for all |
253 | * field units that follow, until field end or another access_as keyword. | 262 | * field units that follow, until field end or another access_as |
263 | * keyword. | ||
254 | * | 264 | * |
255 | * In field_flags, preserve the flag bits other than the ACCESS_TYPE bits | 265 | * In field_flags, preserve the flag bits other than the |
266 | * ACCESS_TYPE bits | ||
256 | */ | 267 | */ |
257 | info->field_flags = (u8) ((info->field_flags & ~(AML_FIELD_ACCESS_TYPE_MASK)) | | 268 | info->field_flags = (u8) |
258 | ((u8) ((u32) arg->common.value.integer >> 8))); | 269 | ((info->field_flags & ~(AML_FIELD_ACCESS_TYPE_MASK)) | |
270 | ((u8) ((u32) arg->common.value.integer >> 8))); | ||
259 | 271 | ||
260 | info->attribute = (u8) (arg->common.value.integer); | 272 | info->attribute = (u8) (arg->common.value.integer); |
261 | break; | 273 | break; |
@@ -267,7 +279,8 @@ acpi_ds_get_field_names ( | |||
267 | 279 | ||
268 | status = acpi_ns_lookup (walk_state->scope_info, | 280 | status = acpi_ns_lookup (walk_state->scope_info, |
269 | (char *) &arg->named.name, | 281 | (char *) &arg->named.name, |
270 | info->field_type, ACPI_IMODE_EXECUTE, ACPI_NS_DONT_OPEN_SCOPE, | 282 | info->field_type, ACPI_IMODE_EXECUTE, |
283 | ACPI_NS_DONT_OPEN_SCOPE, | ||
271 | walk_state, &info->field_node); | 284 | walk_state, &info->field_node); |
272 | if (ACPI_FAILURE (status)) { | 285 | if (ACPI_FAILURE (status)) { |
273 | ACPI_REPORT_NSERROR ((char *) &arg->named.name, status); | 286 | ACPI_REPORT_NSERROR ((char *) &arg->named.name, status); |
@@ -295,8 +308,9 @@ acpi_ds_get_field_names ( | |||
295 | + (acpi_integer) arg->common.value.size; | 308 | + (acpi_integer) arg->common.value.size; |
296 | 309 | ||
297 | if (position > ACPI_UINT32_MAX) { | 310 | if (position > ACPI_UINT32_MAX) { |
298 | ACPI_REPORT_ERROR (("Field [%4.4s] bit offset too large (> 0xFFFFFFFF)\n", | 311 | ACPI_REPORT_ERROR (( |
299 | (char *) &info->field_node->name)); | 312 | "Field [%4.4s] bit offset too large (> 0xFFFFFFFF)\n", |
313 | (char *) &info->field_node->name)); | ||
300 | return_ACPI_STATUS (AE_SUPPORT); | 314 | return_ACPI_STATUS (AE_SUPPORT); |
301 | } | 315 | } |
302 | 316 | ||
@@ -306,7 +320,8 @@ acpi_ds_get_field_names ( | |||
306 | 320 | ||
307 | default: | 321 | default: |
308 | 322 | ||
309 | ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid opcode in field list: %X\n", | 323 | ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, |
324 | "Invalid opcode in field list: %X\n", | ||
310 | arg->common.aml_opcode)); | 325 | arg->common.aml_opcode)); |
311 | return_ACPI_STATUS (AE_AML_BAD_OPCODE); | 326 | return_ACPI_STATUS (AE_AML_BAD_OPCODE); |
312 | } | 327 | } |
@@ -435,7 +450,8 @@ acpi_ds_init_field_objects ( | |||
435 | status = acpi_ns_lookup (walk_state->scope_info, | 450 | status = acpi_ns_lookup (walk_state->scope_info, |
436 | (char *) &arg->named.name, | 451 | (char *) &arg->named.name, |
437 | type, ACPI_IMODE_LOAD_PASS1, | 452 | type, ACPI_IMODE_LOAD_PASS1, |
438 | ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | ACPI_NS_ERROR_IF_FOUND, | 453 | ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | |
454 | ACPI_NS_ERROR_IF_FOUND, | ||
439 | walk_state, &node); | 455 | walk_state, &node); |
440 | if (ACPI_FAILURE (status)) { | 456 | if (ACPI_FAILURE (status)) { |
441 | ACPI_REPORT_NSERROR ((char *) &arg->named.name, status); | 457 | ACPI_REPORT_NSERROR ((char *) &arg->named.name, status); |