1 /*******************************************************************************
3 * Module Name: dmresrc.c - Resource Descriptor disassembly
5 ******************************************************************************/
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49 #ifdef ACPI_DISASSEMBLER
51 #define _COMPONENT ACPI_CA_DEBUGGER
52 ACPI_MODULE_NAME ("dbresrc")
55 /* Dispatch tables for Resource disassembly functions */
57 static ACPI_RESOURCE_HANDLER AcpiGbl_DmResourceDispatch [] =
59 /* Small descriptors */
61 NULL, /* 0x00, Reserved */
62 NULL, /* 0x01, Reserved */
63 NULL, /* 0x02, Reserved */
64 NULL, /* 0x03, Reserved */
65 AcpiDmIrqDescriptor, /* 0x04, ACPI_RESOURCE_NAME_IRQ_FORMAT */
66 AcpiDmDmaDescriptor, /* 0x05, ACPI_RESOURCE_NAME_DMA_FORMAT */
67 AcpiDmStartDependentDescriptor, /* 0x06, ACPI_RESOURCE_NAME_START_DEPENDENT */
68 AcpiDmEndDependentDescriptor, /* 0x07, ACPI_RESOURCE_NAME_END_DEPENDENT */
69 AcpiDmIoDescriptor, /* 0x08, ACPI_RESOURCE_NAME_IO_PORT */
70 AcpiDmFixedIoDescriptor, /* 0x09, ACPI_RESOURCE_NAME_FIXED_IO_PORT */
71 AcpiDmFixedDmaDescriptor, /* 0x0A, ACPI_RESOURCE_NAME_FIXED_DMA */
72 NULL, /* 0x0B, Reserved */
73 NULL, /* 0x0C, Reserved */
74 NULL, /* 0x0D, Reserved */
75 AcpiDmVendorSmallDescriptor, /* 0x0E, ACPI_RESOURCE_NAME_SMALL_VENDOR */
76 NULL, /* 0x0F, ACPI_RESOURCE_NAME_END_TAG (not used) */
78 /* Large descriptors */
80 NULL, /* 0x00, Reserved */
81 AcpiDmMemory24Descriptor, /* 0x01, ACPI_RESOURCE_NAME_MEMORY_24 */
82 AcpiDmGenericRegisterDescriptor,/* 0x02, ACPI_RESOURCE_NAME_GENERIC_REGISTER */
83 NULL, /* 0x03, Reserved */
84 AcpiDmVendorLargeDescriptor, /* 0x04, ACPI_RESOURCE_NAME_LARGE_VENDOR */
85 AcpiDmMemory32Descriptor, /* 0x05, ACPI_RESOURCE_NAME_MEMORY_32 */
86 AcpiDmFixedMemory32Descriptor, /* 0x06, ACPI_RESOURCE_NAME_FIXED_MEMORY_32 */
87 AcpiDmDwordDescriptor, /* 0x07, ACPI_RESOURCE_NAME_DWORD_ADDRESS_SPACE */
88 AcpiDmWordDescriptor, /* 0x08, ACPI_RESOURCE_NAME_WORD_ADDRESS_SPACE */
89 AcpiDmInterruptDescriptor, /* 0x09, ACPI_RESOURCE_NAME_EXTENDED_XRUPT */
90 AcpiDmQwordDescriptor, /* 0x0A, ACPI_RESOURCE_NAME_QWORD_ADDRESS_SPACE */
91 AcpiDmExtendedDescriptor, /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS_SPACE */
92 AcpiDmGpioDescriptor, /* 0x0C, ACPI_RESOURCE_NAME_GPIO */
93 NULL, /* 0x0D, Reserved */
94 AcpiDmSerialBusDescriptor /* 0x0E, ACPI_RESOURCE_NAME_SERIAL_BUS */
98 /* Only used for single-threaded applications */
99 /* TBD: remove when name is passed as parameter to the dump functions */
101 static UINT32 ResourceName;
104 /*******************************************************************************
106 * FUNCTION: AcpiDmDescriptorName
112 * DESCRIPTION: Emit a name for the descriptor if one is present (indicated
113 * by the name being changed from the default name.) A name is only
114 * emitted if a reference to the descriptor has been made somewhere
115 * in the original ASL code.
117 ******************************************************************************/
120 AcpiDmDescriptorName (
124 if (ResourceName == ACPI_DEFAULT_RESNAME)
129 AcpiOsPrintf ("%4.4s", (char *) &ResourceName);
133 /*******************************************************************************
135 * FUNCTION: AcpiDmDumpInteger*
137 * PARAMETERS: Value - Value to emit
138 * Name - Associated name (emitted as a comment)
142 * DESCRIPTION: Integer output helper functions
144 ******************************************************************************/
151 AcpiOsPrintf ("0x%2.2X, // %s\n", Value, Name);
155 AcpiDmDumpInteger16 (
159 AcpiOsPrintf ("0x%4.4X, // %s\n", Value, Name);
163 AcpiDmDumpInteger32 (
167 AcpiOsPrintf ("0x%8.8X, // %s\n", Value, Name);
171 AcpiDmDumpInteger64 (
175 AcpiOsPrintf ("0x%8.8X%8.8X, // %s\n", ACPI_FORMAT_UINT64 (Value), Name);
179 /*******************************************************************************
181 * FUNCTION: AcpiDmBitList
183 * PARAMETERS: Mask - 16-bit value corresponding to 16 interrupt
188 * DESCRIPTION: Dump a bit mask as a list of individual interrupt/DMA levels.
190 ******************************************************************************/
197 BOOLEAN Previous = FALSE;
200 /* Open the initializer list */
204 /* Examine each bit */
206 for (i = 0; i < 16; i++)
208 /* Only interested in bits that are set to 1 */
217 AcpiOsPrintf ("%u", i);
225 AcpiOsPrintf ("}\n");
229 /*******************************************************************************
231 * FUNCTION: AcpiDmResourceTemplate
233 * PARAMETERS: Info - Curent parse tree walk info
234 * ByteData - Pointer to the byte list data
235 * ByteCount - Length of the byte list
239 * DESCRIPTION: Dump the contents of a Resource Template containing a set of
240 * Resource Descriptors.
242 ******************************************************************************/
245 AcpiDmResourceTemplate (
246 ACPI_OP_WALK_INFO *Info,
247 ACPI_PARSE_OBJECT *Op,
252 UINT32 CurrentByteOffset;
254 UINT32 ResourceLength;
257 BOOLEAN DependentFns = FALSE;
259 ACPI_NAMESPACE_NODE *Node;
262 if (Op->Asl.AmlOpcode != AML_FIELD_OP)
264 Info->MappingOp = Op;
268 ResourceName = ACPI_DEFAULT_RESNAME;
269 Node = Op->Common.Node;
275 for (CurrentByteOffset = 0; CurrentByteOffset < ByteCount;)
277 Aml = &ByteData[CurrentByteOffset];
279 /* Get the descriptor type and length */
281 ResourceType = AcpiUtGetResourceType (Aml);
282 ResourceLength = AcpiUtGetResourceLength (Aml);
284 /* Validate the Resource Type and Resource Length */
286 Status = AcpiUtValidateResource (NULL, Aml, &ResourceIndex);
287 if (ACPI_FAILURE (Status))
289 AcpiOsPrintf ("/*** Could not validate Resource, type (%X) %s***/\n",
290 ResourceType, AcpiFormatException (Status));
294 /* Point to next descriptor */
296 CurrentByteOffset += AcpiUtGetDescriptorLength (Aml);
298 /* Descriptor pre-processing */
300 switch (ResourceType)
302 case ACPI_RESOURCE_NAME_START_DEPENDENT:
304 /* Finish a previous StartDependentFns */
309 AcpiDmIndent (Level);
310 AcpiOsPrintf ("}\n");
314 case ACPI_RESOURCE_NAME_END_DEPENDENT:
317 DependentFns = FALSE;
320 case ACPI_RESOURCE_NAME_END_TAG:
322 /* Normal exit, the resource list is finished */
327 * Close an open StartDependentDescriptor. This indicates a
328 * missing EndDependentDescriptor.
331 DependentFns = FALSE;
333 /* Go ahead and insert EndDependentFn() */
335 AcpiDmEndDependentDescriptor (Info, Aml, ResourceLength, Level);
337 AcpiDmIndent (Level);
339 "/*** Disassembler: inserted missing EndDependentFn () ***/\n");
348 /* Disassemble the resource structure */
352 ResourceName = Node->Name.Integer;
356 AcpiGbl_DmResourceDispatch [ResourceIndex] (
357 Info, Aml, ResourceLength, Level);
359 /* Descriptor post-processing */
361 if (ResourceType == ACPI_RESOURCE_NAME_START_DEPENDENT)
370 /*******************************************************************************
372 * FUNCTION: AcpiDmIsResourceTemplate
374 * PARAMETERS: WalkState - Current walk info
375 * Op - Buffer Op to be examined
377 * RETURN: Status. AE_OK if valid template
379 * DESCRIPTION: Walk a byte list to determine if it consists of a valid set
380 * of resource descriptors. Nothing is output.
382 ******************************************************************************/
385 AcpiDmIsResourceTemplate (
386 ACPI_WALK_STATE *WalkState,
387 ACPI_PARSE_OBJECT *Op)
390 ACPI_PARSE_OBJECT *NextOp;
396 /* This op must be a buffer */
398 if (Op->Common.AmlOpcode != AML_BUFFER_OP)
403 /* Get the ByteData list and length */
405 NextOp = Op->Common.Value.Arg;
408 AcpiOsPrintf ("NULL byte list in buffer\n");
412 NextOp = NextOp->Common.Next;
418 Aml = NextOp->Named.Data;
419 Length = (ACPI_SIZE) NextOp->Common.Value.Integer;
421 /* Walk the byte list, abort on any invalid descriptor type or length */
423 Status = AcpiUtWalkAmlResources (WalkState, Aml, Length,
424 NULL, ACPI_CAST_INDIRECT_PTR (void, &EndAml));
425 if (ACPI_FAILURE (Status))
431 * For the resource template to be valid, one EndTag must appear
432 * at the very end of the ByteList, not before. (For proper disassembly
433 * of a ResourceTemplate, the buffer must not have any extra data after
436 if ((Aml + Length - sizeof (AML_RESOURCE_END_TAG)) != EndAml)
438 return (AE_AML_NO_RESOURCE_END_TAG);
442 * All resource descriptors are valid, therefore this list appears
443 * to be a valid resource template