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path: root/drivers/acpi/resources/rscreate.c
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Diffstat (limited to 'drivers/acpi/resources/rscreate.c')
-rw-r--r--drivers/acpi/resources/rscreate.c231
1 files changed, 114 insertions, 117 deletions
diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c
index 0911526b7ad..8c128dea325 100644
--- a/drivers/acpi/resources/rscreate.c
+++ b/drivers/acpi/resources/rscreate.c
@@ -5,7 +5,7 @@
******************************************************************************/
/*
- * Copyright (C) 2000 - 2005, R. Byron Moore
+ * Copyright (C) 2000 - 2006, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -53,10 +53,10 @@ ACPI_MODULE_NAME("rscreate")
*
* FUNCTION: acpi_rs_create_resource_list
*
- * PARAMETERS: byte_stream_buffer - Pointer to the resource byte stream
- * output_buffer - Pointer to the user's buffer
+ * PARAMETERS: aml_buffer - Pointer to the resource byte stream
+ * output_buffer - Pointer to the user's buffer
*
- * RETURN: Status - AE_OK if okay, else a valid acpi_status code
+ * RETURN: Status: AE_OK if okay, else a valid acpi_status code
* If output_buffer is not large enough, output_buffer_length
* indicates how large output_buffer should be, else it
* indicates how may u8 elements of output_buffer are valid.
@@ -67,33 +67,30 @@ ACPI_MODULE_NAME("rscreate")
*
******************************************************************************/
acpi_status
-acpi_rs_create_resource_list(union acpi_operand_object *byte_stream_buffer,
+acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer,
struct acpi_buffer *output_buffer)
{
acpi_status status;
- u8 *byte_stream_start;
+ u8 *aml_start;
acpi_size list_size_needed = 0;
- u32 byte_stream_buffer_length;
+ u32 aml_buffer_length;
ACPI_FUNCTION_TRACE("rs_create_resource_list");
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "byte_stream_buffer = %p\n",
- byte_stream_buffer));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "aml_buffer = %p\n", aml_buffer));
/* Params already validated, so we don't re-validate here */
- byte_stream_buffer_length = byte_stream_buffer->buffer.length;
- byte_stream_start = byte_stream_buffer->buffer.pointer;
+ aml_buffer_length = aml_buffer->buffer.length;
+ aml_start = aml_buffer->buffer.pointer;
/*
- * Pass the byte_stream_buffer into a module that can calculate
+ * Pass the aml_buffer into a module that can calculate
* the buffer size needed for the linked list
*/
- status =
- acpi_rs_get_list_length(byte_stream_start,
- byte_stream_buffer_length,
- &list_size_needed);
+ status = acpi_rs_get_list_length(aml_start, aml_buffer_length,
+ &list_size_needed);
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Status=%X list_size_needed=%X\n",
status, (u32) list_size_needed));
@@ -110,10 +107,8 @@ acpi_rs_create_resource_list(union acpi_operand_object *byte_stream_buffer,
/* Do the conversion */
- status =
- acpi_rs_byte_stream_to_list(byte_stream_start,
- byte_stream_buffer_length,
- output_buffer->pointer);
+ status = acpi_rs_convert_aml_to_resources(aml_start, aml_buffer_length,
+ output_buffer->pointer);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
@@ -212,21 +207,20 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
/* Each element of the top-level package must also be a package */
if (ACPI_GET_OBJECT_TYPE(*top_object_list) != ACPI_TYPE_PACKAGE) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "(PRT[%X]) Need sub-package, found %s\n",
- index,
- acpi_ut_get_object_type_name
- (*top_object_list)));
+ ACPI_ERROR((AE_INFO,
+ "(PRT[%X]) Need sub-package, found %s",
+ index,
+ acpi_ut_get_object_type_name
+ (*top_object_list)));
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
}
/* Each sub-package must be of length 4 */
if ((*top_object_list)->package.count != 4) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "(PRT[%X]) Need package of length 4, found length %d\n",
- index,
- (*top_object_list)->package.count));
+ ACPI_ERROR((AE_INFO,
+ "(PRT[%X]) Need package of length 4, found length %d",
+ index, (*top_object_list)->package.count));
return_ACPI_STATUS(AE_AML_PACKAGE_LIMIT);
}
@@ -243,11 +237,10 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
user_prt->address = obj_desc->integer.value;
} else {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "(PRT[%X].Address) Need Integer, found %s\n",
- index,
- acpi_ut_get_object_type_name
- (obj_desc)));
+ ACPI_ERROR((AE_INFO,
+ "(PRT[%X].Address) Need Integer, found %s",
+ index,
+ acpi_ut_get_object_type_name(obj_desc)));
return_ACPI_STATUS(AE_BAD_DATA);
}
@@ -257,76 +250,83 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
user_prt->pin = (u32) obj_desc->integer.value;
} else {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "(PRT[%X].Pin) Need Integer, found %s\n",
- index,
- acpi_ut_get_object_type_name
- (obj_desc)));
+ ACPI_ERROR((AE_INFO,
+ "(PRT[%X].Pin) Need Integer, found %s",
+ index,
+ acpi_ut_get_object_type_name(obj_desc)));
return_ACPI_STATUS(AE_BAD_DATA);
}
- /* 3) Third subobject: Dereference the PRT.source_name */
-
+ /*
+ * 3) Third subobject: Dereference the PRT.source_name
+ * The name may be unresolved (slack mode), so allow a null object
+ */
obj_desc = sub_object_list[2];
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_LOCAL_REFERENCE:
-
- if (obj_desc->reference.opcode != AML_INT_NAMEPATH_OP) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "(PRT[%X].Source) Need name, found reference op %X\n",
- index,
- obj_desc->reference.opcode));
+ if (obj_desc) {
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ if (obj_desc->reference.opcode !=
+ AML_INT_NAMEPATH_OP) {
+ ACPI_ERROR((AE_INFO,
+ "(PRT[%X].Source) Need name, found reference op %X",
+ index,
+ obj_desc->reference.
+ opcode));
+ return_ACPI_STATUS(AE_BAD_DATA);
+ }
+
+ node = obj_desc->reference.node;
+
+ /* Use *remaining* length of the buffer as max for pathname */
+
+ path_buffer.length = output_buffer->length -
+ (u32) ((u8 *) user_prt->source -
+ (u8 *) output_buffer->pointer);
+ path_buffer.pointer = user_prt->source;
+
+ status =
+ acpi_ns_handle_to_pathname((acpi_handle)
+ node,
+ &path_buffer);
+
+ /* +1 to include null terminator */
+
+ user_prt->length +=
+ (u32) ACPI_STRLEN(user_prt->source) + 1;
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ ACPI_STRCPY(user_prt->source,
+ obj_desc->string.pointer);
+
+ /*
+ * Add to the Length field the length of the string
+ * (add 1 for terminator)
+ */
+ user_prt->length += obj_desc->string.length + 1;
+ break;
+
+ case ACPI_TYPE_INTEGER:
+ /*
+ * If this is a number, then the Source Name is NULL, since the
+ * entire buffer was zeroed out, we can leave this alone.
+ *
+ * Add to the Length field the length of the u32 NULL
+ */
+ user_prt->length += sizeof(u32);
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO,
+ "(PRT[%X].Source) Need Ref/String/Integer, found %s",
+ index,
+ acpi_ut_get_object_type_name
+ (obj_desc)));
return_ACPI_STATUS(AE_BAD_DATA);
}
-
- node = obj_desc->reference.node;
-
- /* Use *remaining* length of the buffer as max for pathname */
-
- path_buffer.length = output_buffer->length -
- (u32) ((u8 *) user_prt->source -
- (u8 *) output_buffer->pointer);
- path_buffer.pointer = user_prt->source;
-
- status =
- acpi_ns_handle_to_pathname((acpi_handle) node,
- &path_buffer);
-
- /* +1 to include null terminator */
-
- user_prt->length +=
- (u32) ACPI_STRLEN(user_prt->source) + 1;
- break;
-
- case ACPI_TYPE_STRING:
-
- ACPI_STRCPY(user_prt->source, obj_desc->string.pointer);
-
- /*
- * Add to the Length field the length of the string
- * (add 1 for terminator)
- */
- user_prt->length += obj_desc->string.length + 1;
- break;
-
- case ACPI_TYPE_INTEGER:
- /*
- * If this is a number, then the Source Name is NULL, since the
- * entire buffer was zeroed out, we can leave this alone.
- *
- * Add to the Length field the length of the u32 NULL
- */
- user_prt->length += sizeof(u32);
- break;
-
- default:
-
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "(PRT[%X].Source) Need Ref/String/Integer, found %s\n",
- index,
- acpi_ut_get_object_type_name
- (obj_desc)));
- return_ACPI_STATUS(AE_BAD_DATA);
}
/* Now align the current length */
@@ -340,11 +340,10 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
user_prt->source_index = (u32) obj_desc->integer.value;
} else {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "(PRT[%X].source_index) Need Integer, found %s\n",
- index,
- acpi_ut_get_object_type_name
- (obj_desc)));
+ ACPI_ERROR((AE_INFO,
+ "(PRT[%X].source_index) Need Integer, found %s",
+ index,
+ acpi_ut_get_object_type_name(obj_desc)));
return_ACPI_STATUS(AE_BAD_DATA);
}
@@ -360,7 +359,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
/*******************************************************************************
*
- * FUNCTION: acpi_rs_create_byte_stream
+ * FUNCTION: acpi_rs_create_aml_resources
*
* PARAMETERS: linked_list_buffer - Pointer to the resource linked list
* output_buffer - Pointer to the user's buffer
@@ -377,13 +376,13 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
******************************************************************************/
acpi_status
-acpi_rs_create_byte_stream(struct acpi_resource *linked_list_buffer,
- struct acpi_buffer *output_buffer)
+acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer,
+ struct acpi_buffer *output_buffer)
{
acpi_status status;
- acpi_size byte_stream_size_needed = 0;
+ acpi_size aml_size_needed = 0;
- ACPI_FUNCTION_TRACE("rs_create_byte_stream");
+ ACPI_FUNCTION_TRACE("rs_create_aml_resources");
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "linked_list_buffer = %p\n",
linked_list_buffer));
@@ -394,11 +393,10 @@ acpi_rs_create_byte_stream(struct acpi_resource *linked_list_buffer,
* Pass the linked_list_buffer into a module that calculates
* the buffer size needed for the byte stream.
*/
- status = acpi_rs_get_byte_stream_length(linked_list_buffer,
- &byte_stream_size_needed);
+ status = acpi_rs_get_aml_length(linked_list_buffer, &aml_size_needed);
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "byte_stream_size_needed=%X, %s\n",
- (u32) byte_stream_size_needed,
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "aml_size_needed=%X, %s\n",
+ (u32) aml_size_needed,
acpi_format_exception(status)));
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
@@ -406,8 +404,7 @@ acpi_rs_create_byte_stream(struct acpi_resource *linked_list_buffer,
/* Validate/Allocate/Clear caller buffer */
- status =
- acpi_ut_initialize_buffer(output_buffer, byte_stream_size_needed);
+ status = acpi_ut_initialize_buffer(output_buffer, aml_size_needed);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
@@ -415,9 +412,9 @@ acpi_rs_create_byte_stream(struct acpi_resource *linked_list_buffer,
/* Do the conversion */
status =
- acpi_rs_list_to_byte_stream(linked_list_buffer,
- byte_stream_size_needed,
- output_buffer->pointer);
+ acpi_rs_convert_resources_to_aml(linked_list_buffer,
+ aml_size_needed,
+ output_buffer->pointer);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}